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Simple maintenance and elimination of odor in the use of cold storage
Simple maintenance and elimination of odor in the use of cold storage
Shandong Furuide refrigeration air conditioning Co. Ltd. is located in the beautiful scenery of the coastal city of Rongcheng Shidao, founded in 1992, is a refrigeration and air conditioning equipment manufacturing and refrigeration and air conditioning engineering design and installation of professional enterprises; has been approved by the Ministry of agriculture "the current situation and development trend of marine fishing vessel refrigeration technology of building and repairing factory approval certificate", has the installation of all kinds of fishing vessel refrigeration system qualification. Quality and capability of marine pressure vessels and marine refrigerated air conditioning products. Refrigerated air conditioning products are tested and approved by CCS. The main products are freezing, air conditioning, ice making and other large categories, widely used in all kinds of ships, especially fishing boats. The development of fishing vessel refrigeration equipment is favored by users because of its superior performance, reliable quality and long service life. Its products have been widely applied in Southeast Asia, Africa, South America and other parts of China. The enterprise has marine engineering, refrigeration and air conditioning, mechanical, electrical and other professional and technical personnel and skilled workers, a strong team of product development and technology innovation; with the production first-class product of modern plant and production equipment, to ensure that the products of high quality and high performance The enterprise has established a perfect quality management system and has been effectively run. As the enterprise reputation and product quality as its life, always adhere to the "good governance, excellence, and thoughtful service, quality policy quality", and strive to provide first-class products and services to customers. Shandong Rongcheng is located in the eastern tip of Shandong Peninsula, there is not only beautiful, but also brought together by the Yellow Sea shipbuilding, Rongcheng shipbuilding as a leader, the backbone of a number of fishing boat manufacturing enterprises to shipbuilding, shipbuilding, Yuantong Baibuting dayudao shipbuilding, ship repair, shipbuilding, East China Xinyang Shidao Donghai shipbuilding, called the ocean fishing base construction. The fishing boats built in Rongcheng are widely favored for its advantages of large pulling capacity, large capacity, large refrigerating capacity and comprehensive economic benefits, and have been spread all over the world. Two. The development course of fishing boat refrigeration technology: Fishing with the change of refrigeration technology and Fisheries Fisheries production market, has experienced several periods: preliminary development period - 80s to 8154, 8160, 8163 and other ships as the representative, the general configuration of 810 series piston refrigeration compressor two units, 0.96 tons / Aluminum Alloy plate freezing machine two, daily capacity of 8 tons of frozen. In the depression of 90s - the number of new frozen fishing boats was scarce in this period, and its matching refrigeration equipment was developed in the direction of miniaturization and simplification. The stable development period since 2000, fishery enterprises after years of development, has accumulated a certain amount of capital, plus some policy support, the rapid increase in the number of new and renovation of frozen fishing boats, fishing boats frozen fish preservation capacity requirements and quality requirements continue to increase, the design level of technical level of refrigeration equipment and refrigeration system are obtained the rapid development of. Stable development period, mainly HC837, HC867, RC879 and other representative ship type, generally equipped with 812.5 series of piston refrigeration compressor two units, 4.2 tons / times aluminum alloy shelf wind blowing and freezing device two sets, daily freezing capacity of 24 tons. After 2010, these representative ship types were gradually changed to a CYJZ-2X125A marine semi enclosed screw compressor unit, 4.8 tons / two aluminum alloy rack and blow and freeze unit, and the daily freezing capacity reached 30 tons. Three. The present situation of the development of fishing boat refrigeration technology: The freezing device occupies an important position in the fishing boat. Especially in oceangoing fishing vessels, the performance and efficiency of refrigerating device not only affect the quality of the fresh-keeping, but also directly affect the output of fishing vessels, especially the fishing vessels operating in resource rich oceangoing fishing grounds. Their production capacity is directly determined by their refrigerating capacity. The capacity of freezing processing is mainly restricted by the technical performance of the refrigeration equipment. The traditional frozen liquid supply device has uneven and slow freezing and
See more information
Shandong Furuide refrigeration air conditioning Co. Ltd. is located in the beautiful scenery of the coastal city of Rongcheng Shidao, founded in 1992, is a refrigeration and air conditioning equipment manufacturing and refrigeration and air conditioning engineering design and installation of professional enterprises; has been approved by the Ministry of agriculture "the current situation and development trend of marine fishing vessel refrigeration technology of building and repairing factory approval certificate", has the installation of all kinds of fishing vessel refrigeration system qualification. Quality and capability of marine pressure vessels and marine refrigerated air conditioning products. Refrigerated air conditioning products are tested and approved by CCS. The main products are freezing, air conditioning, ice making and other large categories, widely used in all kinds of ships, especially fishing boats. The development of fishing vessel refrigeration equipment is favored by users because of its superior performance, reliable quality and long service life. Its products have been widely applied in Southeast Asia, Africa, South America and other parts of China. The enterprise has marine engineering, refrigeration and air conditioning, mechanical, electrical and other professional and technical personnel and skilled workers, a strong team of product development and technology innovation; with the production first-class product of modern plant and production equipment, to ensure that the products of high quality and high performance The enterprise has established a perfect quality management system and has been effectively run. As the enterprise reputation and product quality as its life, always adhere to the "good governance, excellence, and thoughtful service, quality policy quality", and strive to provide first-class products and services to customers. Shandong Rongcheng is located in the eastern tip of Shandong Peninsula, there is not only beautiful, but also brought together by the Yellow Sea shipbuilding, Rongcheng shipbuilding as a leader, the backbone of a number of fishing boat manufacturing enterprises to shipbuilding, shipbuilding, Yuantong Baibuting dayudao shipbuilding, ship repair, shipbuilding, East China Xinyang Shidao Donghai shipbuilding, called the ocean fishing base construction. The fishing boats built in Rongcheng are widely favored for its advantages of large pulling capacity, large capacity, large refrigerating capacity and comprehensive economic benefits, and have been spread all over the world. Two. The development course of fishing boat refrigeration technology: Fishing with the change of refrigeration technology and Fisheries Fisheries production market, has experienced several periods: preliminary development period - 80s to 8154, 8160, 8163 and other ships as the representative, the general configuration of 810 series piston refrigeration compressor two units, 0.96 tons / Aluminum Alloy plate freezing machine two, daily capacity of 8 tons of frozen. In the depression of 90s - the number of new frozen fishing boats was scarce in this period, and its matching refrigeration equipment was developed in the direction of miniaturization and simplification. The stable development period since 2000, fishery enterprises after years of development, has accumulated a certain amount of capital, plus some policy support, the rapid increase in the number of new and renovation of frozen fishing boats, fishing boats frozen fish preservation capacity requirements and quality requirements continue to increase, the design level of technical level of refrigeration equipment and refrigeration system are obtained the rapid development of. Stable development period, mainly HC837, HC867, RC879 and other representative ship type, generally equipped with 812.5 series of piston refrigeration compressor two units, 4.2 tons / times aluminum alloy shelf wind blowing and freezing device two sets, daily freezing capacity of 24 tons. After 2010, these representative ship types were gradually changed to a CYJZ-2X125A marine semi enclosed screw compressor unit, 4.8 tons / two aluminum alloy rack and blow and freeze unit, and the daily freezing capacity reached 30 tons. Three. The present situation of the development of fishing boat refrigeration technology: The freezing device occupies an important position in the fishing boat. Especially in oceangoing fishing vessels, the performance and efficiency of refrigerating device not only affect the quality of the fresh-keeping, but also directly affect the output of fishing vessels, especially the fishing vessels operating in resource rich oceangoing fishing grounds. Their production capacity is directly determined by their refrigerating capacity. The capacity of freezing processing is mainly restricted by the technical performance of the refrigeration equipment. The traditional frozen liquid supply device has uneven and slow freezing and
2013 China International Summit on fishing vessels and equipment technology was successfully held
2013 China International Summit on fishing vessels and equipment technology was successfully held
1, December 18, 2013 ~20, organized by the Zhoushan municipal government, Shandong Furuide refrigeration air conditioning Co. Ltd. organized the 2013 Chinese fishing boats and equipment technology international summit "held in Zhoushan city. Our company and the representatives of nearly 80 shipbuilding enterprises, ship equipment manufacturing enterprises and ship design units from home and abroad participated in the summit. 2, Shandong Furuide refrigeration and air conditioning company limited, the exhibition "2013 China fishing boats and equipment technology summit" 3, Mr. Tan Anpeng, chairman of the company, made a report on the current situation and development trend of the fishing vessel refrigeration technology at the 2013 International Summit on fishing vessels and equipment technology. At the same time, the present situation and trend of Chinese fishing boat manufacturing and supporting industry were discussed.
See more information
1, December 18, 2013 ~20, organized by the Zhoushan municipal government, Shandong Furuide refrigeration air conditioning Co. Ltd. organized the 2013 Chinese fishing boats and equipment technology international summit "held in Zhoushan city. Our company and the representatives of nearly 80 shipbuilding enterprises, ship equipment manufacturing enterprises and ship design units from home and abroad participated in the summit. 2, Shandong Furuide refrigeration and air conditioning company limited, the exhibition "2013 China fishing boats and equipment technology summit" 3, Mr. Tan Anpeng, chairman of the company, made a report on the current situation and development trend of the fishing vessel refrigeration technology at the 2013 International Summit on fishing vessels and equipment technology. At the same time, the present situation and trend of Chinese fishing boat manufacturing and supporting industry were discussed.
Winter health: how to properly thaw frozen food
Winter health: how to properly thaw frozen food
Time of issue : 2020-01-15 10:01:00
Now busy, many people like to buy a lot of food at once, and then store it in the fridge. Many people think that this kind of frozen food is worse than fresh food and has low nutritional value. In fact, as long as the proper method of thawing and cooking is grasped, the original color, aroma, taste and shape of the food can still be maintained,
See more information
Now busy, many people like to buy a lot of food at once, and then store it in the fridge. Many people think that this kind of frozen food is worse than fresh food and has low nutritional value. In fact, as long as the proper method of thawing and cooking is grasped, the original color, aroma, taste and shape of the food can still be maintained,

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Simple maintenance and elimination of odor in the use of cold storage
Simple maintenance and elimination of odor in the use of cold storage
Shandong Furuide refrigeration air conditioning Co. Ltd. is located in the beautiful scenery of the coastal city of Rongcheng Shidao, founded in 1992, is a refrigeration and air conditioning equipment manufacturing and refrigeration and air conditioning engineering design and installation of professional enterprises; has been approved by the Ministry of agriculture "the current situation and development trend of marine fishing vessel refrigeration technology of building and repairing factory approval certificate", has the installation of all kinds of fishing vessel refrigeration system qualification. Quality and capability of marine pressure vessels and marine refrigerated air conditioning products. Refrigerated air conditioning products are tested and approved by CCS. The main products are freezing, air conditioning, ice making and other large categories, widely used in all kinds of ships, especially fishing boats. The development of fishing vessel refrigeration equipment is favored by users because of its superior performance, reliable quality and long service life. Its products have been widely applied in Southeast Asia, Africa, South America and other parts of China. The enterprise has marine engineering, refrigeration and air conditioning, mechanical, electrical and other professional and technical personnel and skilled workers, a strong team of product development and technology innovation; with the production first-class product of modern plant and production equipment, to ensure that the products of high quality and high performance The enterprise has established a perfect quality management system and has been effectively run. As the enterprise reputation and product quality as its life, always adhere to the "good governance, excellence, and thoughtful service, quality policy quality", and strive to provide first-class products and services to customers. Shandong Rongcheng is located in the eastern tip of Shandong Peninsula, there is not only beautiful, but also brought together by the Yellow Sea shipbuilding, Rongcheng shipbuilding as a leader, the backbone of a number of fishing boat manufacturing enterprises to shipbuilding, shipbuilding, Yuantong Baibuting dayudao shipbuilding, ship repair, shipbuilding, East China Xinyang Shidao Donghai shipbuilding, called the ocean fishing base construction. The fishing boats built in Rongcheng are widely favored for its advantages of large pulling capacity, large capacity, large refrigerating capacity and comprehensive economic benefits, and have been spread all over the world. Two. The development course of fishing boat refrigeration technology: Fishing with the change of refrigeration technology and Fisheries Fisheries production market, has experienced several periods: preliminary development period - 80s to 8154, 8160, 8163 and other ships as the representative, the general configuration of 810 series piston refrigeration compressor two units, 0.96 tons / Aluminum Alloy plate freezing machine two, daily capacity of 8 tons of frozen. In the depression of 90s - the number of new frozen fishing boats was scarce in this period, and its matching refrigeration equipment was developed in the direction of miniaturization and simplification. The stable development period since 2000, fishery enterprises after years of development, has accumulated a certain amount of capital, plus some policy support, the rapid increase in the number of new and renovation of frozen fishing boats, fishing boats frozen fish preservation capacity requirements and quality requirements continue to increase, the design level of technical level of refrigeration equipment and refrigeration system are obtained the rapid development of. Stable development period, mainly HC837, HC867, RC879 and other representative ship type, generally equipped with 812.5 series of piston refrigeration compressor two units, 4.2 tons / times aluminum alloy shelf wind blowing and freezing device two sets, daily freezing capacity of 24 tons. After 2010, these representative ship types were gradually changed to a CYJZ-2X125A marine semi enclosed screw compressor unit, 4.8 tons / two aluminum alloy rack and blow and freeze unit, and the daily freezing capacity reached 30 tons. Three. The present situation of the development of fishing boat refrigeration technology: The freezing device occupies an important position in the fishing boat. Especially in oceangoing fishing vessels, the performance and efficiency of refrigerating device not only affect the quality of the fresh-keeping, but also directly affect the output of fishing vessels, especially the fishing vessels operating in resource rich oceangoing fishing grounds. Their production capacity is directly determined by their refrigerating capacity. The capacity of freezing processing is mainly restricted by the technical performance of the refrigeration equipment. The traditional frozen liquid supply device has uneven and slow freezing and
See more information
Shandong Furuide refrigeration air conditioning Co. Ltd. is located in the beautiful scenery of the coastal city of Rongcheng Shidao, founded in 1992, is a refrigeration and air conditioning equipment manufacturing and refrigeration and air conditioning engineering design and installation of professional enterprises; has been approved by the Ministry of agriculture "the current situation and development trend of marine fishing vessel refrigeration technology of building and repairing factory approval certificate", has the installation of all kinds of fishing vessel refrigeration system qualification. Quality and capability of marine pressure vessels and marine refrigerated air conditioning products. Refrigerated air conditioning products are tested and approved by CCS. The main products are freezing, air conditioning, ice making and other large categories, widely used in all kinds of ships, especially fishing boats. The development of fishing vessel refrigeration equipment is favored by users because of its superior performance, reliable quality and long service life. Its products have been widely applied in Southeast Asia, Africa, South America and other parts of China. The enterprise has marine engineering, refrigeration and air conditioning, mechanical, electrical and other professional and technical personnel and skilled workers, a strong team of product development and technology innovation; with the production first-class product of modern plant and production equipment, to ensure that the products of high quality and high performance The enterprise has established a perfect quality management system and has been effectively run. As the enterprise reputation and product quality as its life, always adhere to the "good governance, excellence, and thoughtful service, quality policy quality", and strive to provide first-class products and services to customers. Shandong Rongcheng is located in the eastern tip of Shandong Peninsula, there is not only beautiful, but also brought together by the Yellow Sea shipbuilding, Rongcheng shipbuilding as a leader, the backbone of a number of fishing boat manufacturing enterprises to shipbuilding, shipbuilding, Yuantong Baibuting dayudao shipbuilding, ship repair, shipbuilding, East China Xinyang Shidao Donghai shipbuilding, called the ocean fishing base construction. The fishing boats built in Rongcheng are widely favored for its advantages of large pulling capacity, large capacity, large refrigerating capacity and comprehensive economic benefits, and have been spread all over the world. Two. The development course of fishing boat refrigeration technology: Fishing with the change of refrigeration technology and Fisheries Fisheries production market, has experienced several periods: preliminary development period - 80s to 8154, 8160, 8163 and other ships as the representative, the general configuration of 810 series piston refrigeration compressor two units, 0.96 tons / Aluminum Alloy plate freezing machine two, daily capacity of 8 tons of frozen. In the depression of 90s - the number of new frozen fishing boats was scarce in this period, and its matching refrigeration equipment was developed in the direction of miniaturization and simplification. The stable development period since 2000, fishery enterprises after years of development, has accumulated a certain amount of capital, plus some policy support, the rapid increase in the number of new and renovation of frozen fishing boats, fishing boats frozen fish preservation capacity requirements and quality requirements continue to increase, the design level of technical level of refrigeration equipment and refrigeration system are obtained the rapid development of. Stable development period, mainly HC837, HC867, RC879 and other representative ship type, generally equipped with 812.5 series of piston refrigeration compressor two units, 4.2 tons / times aluminum alloy shelf wind blowing and freezing device two sets, daily freezing capacity of 24 tons. After 2010, these representative ship types were gradually changed to a CYJZ-2X125A marine semi enclosed screw compressor unit, 4.8 tons / two aluminum alloy rack and blow and freeze unit, and the daily freezing capacity reached 30 tons. Three. The present situation of the development of fishing boat refrigeration technology: The freezing device occupies an important position in the fishing boat. Especially in oceangoing fishing vessels, the performance and efficiency of refrigerating device not only affect the quality of the fresh-keeping, but also directly affect the output of fishing vessels, especially the fishing vessels operating in resource rich oceangoing fishing grounds. Their production capacity is directly determined by their refrigerating capacity. The capacity of freezing processing is mainly restricted by the technical performance of the refrigeration equipment. The traditional frozen liquid supply device has uneven and slow freezing and
2013 China International Summit on fishing vessels and equipment technology was successfully held
2013 China International Summit on fishing vessels and equipment technology was successfully held
1, December 18, 2013 ~20, organized by the Zhoushan municipal government, Shandong Furuide refrigeration air conditioning Co. Ltd. organized the 2013 Chinese fishing boats and equipment technology international summit "held in Zhoushan city. Our company and the representatives of nearly 80 shipbuilding enterprises, ship equipment manufacturing enterprises and ship design units from home and abroad participated in the summit. 2, Shandong Furuide refrigeration and air conditioning company limited, the exhibition "2013 China fishing boats and equipment technology summit" 3, Mr. Tan Anpeng, chairman of the company, made a report on the current situation and development trend of the fishing vessel refrigeration technology at the 2013 International Summit on fishing vessels and equipment technology. At the same time, the present situation and trend of Chinese fishing boat manufacturing and supporting industry were discussed.
See more information
1, December 18, 2013 ~20, organized by the Zhoushan municipal government, Shandong Furuide refrigeration air conditioning Co. Ltd. organized the 2013 Chinese fishing boats and equipment technology international summit "held in Zhoushan city. Our company and the representatives of nearly 80 shipbuilding enterprises, ship equipment manufacturing enterprises and ship design units from home and abroad participated in the summit. 2, Shandong Furuide refrigeration and air conditioning company limited, the exhibition "2013 China fishing boats and equipment technology summit" 3, Mr. Tan Anpeng, chairman of the company, made a report on the current situation and development trend of the fishing vessel refrigeration technology at the 2013 International Summit on fishing vessels and equipment technology. At the same time, the present situation and trend of Chinese fishing boat manufacturing and supporting industry were discussed.
Winter health: how to properly thaw frozen food
Winter health: how to properly thaw frozen food
Time of issue : 2020-01-15 10:01:00
Now busy, many people like to buy a lot of food at once, and then store it in the fridge. Many people think that this kind of frozen food is worse than fresh food and has low nutritional value. In fact, as long as the proper method of thawing and cooking is grasped, the original color, aroma, taste and shape of the food can still be maintained,
See more information
Now busy, many people like to buy a lot of food at once, and then store it in the fridge. Many people think that this kind of frozen food is worse than fresh food and has low nutritional value. In fact, as long as the proper method of thawing and cooking is grasped, the original color, aroma, taste and shape of the food can still be maintained,
Frozen food taboo with frozen food
Frozen food taboo with frozen food
Time of issue : 2020-01-15 10:02:00
Research shows that frozen foods such as meat, fish, seafood and other long time storage is easy to deteriorate, food proteins can be decomposed to produce "soluble protein" and "amine" "odor" and other toxic substances, and these substances containing toxins even if the heating is also difficult to be broken. After eating, people can cause gastrointestinal toxic reaction, causing different symptoms such as nausea, vomiting, abdominal pain, diarrhea and so on. It is also reported that yersson, which is widely found in poultry and animal animals, can still grow and propagate at a low temperature of 0 to -4. The refrigerator has become an excellent breeding ground. The storage time of food in the refrigerator is too long, and the contaminated food is not fully heated before it is eaten, and it can also cause intestinal infection. To this end, experts remind people that every day a few days to clean the home refrigerator. In particular, the fish and seafood that have been stored for a long time should be carefully discern whether their color and shape are changed. For foods that are frozen for more than 2~3 months, they must be careful when they eat. Don't think it's safe to put food in the refrigerator. In fact, the refrigerator is not a "safe".
See more information
Research shows that frozen foods such as meat, fish, seafood and other long time storage is easy to deteriorate, food proteins can be decomposed to produce "soluble protein" and "amine" "odor" and other toxic substances, and these substances containing toxins even if the heating is also difficult to be broken. After eating, people can cause gastrointestinal toxic reaction, causing different symptoms such as nausea, vomiting, abdominal pain, diarrhea and so on. It is also reported that yersson, which is widely found in poultry and animal animals, can still grow and propagate at a low temperature of 0 to -4. The refrigerator has become an excellent breeding ground. The storage time of food in the refrigerator is too long, and the contaminated food is not fully heated before it is eaten, and it can also cause intestinal infection. To this end, experts remind people that every day a few days to clean the home refrigerator. In particular, the fish and seafood that have been stored for a long time should be carefully discern whether their color and shape are changed. For foods that are frozen for more than 2~3 months, they must be careful when they eat. Don't think it's safe to put food in the refrigerator. In fact, the refrigerator is not a "safe".
Search for reasons for cold storage
Search for reasons for cold storage
Time of issue : 2020-01-15 10:03:00
A common phenomenon when cold storage temperature does not drop down and fall slowly, now down to simple analysis of the reasons of slow temperature: 1. Cold storage is caused by bad heat insulation or poor sealing performance. Poor insulation performance is due to inadequate thickness of insulation layer, heat insulation and insulation effect, such as pipeline and storehouse thermal insulation wall. It is mainly caused by improper selection of insulation layer thickness or poor insulation quality during construction. In addition, in the process of construction, thermal insulation materials insulation moisture-proof performance may be caused by the destruction of insulation damp, deformation, and even erosion, its insulation ability, anti cold base loss increases, temperature decline slowed down significantly. Another important reason for the large cold loss is the poor sealing performance of the storehouse, and more hot air invades the storeroom from the leak. In general, if there is an dew phenomenon in the sealing strip of the warehouse gate or the heat insulation wall of the cold storage, it shows that the seal is not tight. In addition, frequent switch storehouse doors or more people into the warehouse will also increase the cooling loss of the storeroom. We should try to avoid open doors, to prevent a lot of hot air into the warehouse. Of course, when the storeroom enters the stock frequently or the volume is too large, the heat load increases sharply, and it will usually take a long time to cool down to the specified temperature. 2. The surface of the evaporator is too thick or too much dust, and the effect of heat transfer is reduced. Temperature drop leads to another important reason is the slow evaporator heat transfer efficiency is low, which is mainly due to the evaporator surface frost layer is too thick or dust caused by too much. Because the surface temperature of the evaporator of the cold store is mostly lower than 0 C, and the humidity of the storeroom is relatively high, the moisture in the air is liable to frosting or even ice on the evaporator surface, which will affect the heat transfer effect of the evaporator. In order to prevent the surface frost of the evaporator from being too thick, it is necessary to defrost it regularly. The following two simple defrosting methods are introduced: (1) downtime and defrosting. To stop the operation of the compressor, open the warehouse door, let the temperature rise, the automatic defrosting layer, and then restart the compressor. Second, the frost. When the goods in the warehouse are removed, the surface of the evaporator is washed directly with the higher temperature tap water to dissolve or fall off the frost layer. In addition to the poor heat transfer effect of evaporator, the heat transfer efficiency of the evaporator surface is too thick and the heat transfer efficiency will decrease obviously. 3. There are more air or frozen oil in the evaporator, and the heat transfer effect is reduced. Once the evaporator heat transfer tube attached to the surface of oil more, the heat transfer coefficient will decrease, the same, if there are more air in the heat pipe, the heat exchange area of the evaporator is reduced, the heat transfer efficiency will be significantly decreased, temperature drop speed will slow down. Therefore, in daily operation and maintenance, we should pay attention to timely clearing the oil inside the evaporator heat transfer tube and discharging the air in the evaporator, so as to improve the heat transfer efficiency of the evaporator. 4. The throttle valve regulates improper or blockage, and the refrigerant flow is too large or too small Improper adjustment or blockage of the throttle valve will directly affect the flow of refrigerant flow into the evaporator. When the throttle opening is too high, the refrigerant flow is too large, the evaporation pressure and evaporation temperature, storage temperature will slow down; at the same time, when the throttle valve through a small opening or blockage, the refrigerant flow is reduced, the cooling capacity decreases, the real temperature drop speed of the same library will slow down. It is generally possible to determine whether the flow rate of the throttle valve is appropriate by observing the evaporation pressure, the evaporation temperature and the frosting condition of the suction tube. Blockage of throttle valve is an important factor affecting the flow of refrigerant, and the main cause of choking of throttle valve is ice blocking and dirty plugging. Ice jam is due to poor performance of the dryer, containing water in the refrigerant flowing through the throttle valve, when the temperature is below 0 DEG C, the water freezes and refrigerant throttle valve plug hole; a dirty block is due to the throttle valve inlet filter to accumulate more dirt, refrigerant circulation, plug formation. 5. The cooling capacity in the system is insufficient and the refrigera
See more information
A common phenomenon when cold storage temperature does not drop down and fall slowly, now down to simple analysis of the reasons of slow temperature: 1. Cold storage is caused by bad heat insulation or poor sealing performance. Poor insulation performance is due to inadequate thickness of insulation layer, heat insulation and insulation effect, such as pipeline and storehouse thermal insulation wall. It is mainly caused by improper selection of insulation layer thickness or poor insulation quality during construction. In addition, in the process of construction, thermal insulation materials insulation moisture-proof performance may be caused by the destruction of insulation damp, deformation, and even erosion, its insulation ability, anti cold base loss increases, temperature decline slowed down significantly. Another important reason for the large cold loss is the poor sealing performance of the storehouse, and more hot air invades the storeroom from the leak. In general, if there is an dew phenomenon in the sealing strip of the warehouse gate or the heat insulation wall of the cold storage, it shows that the seal is not tight. In addition, frequent switch storehouse doors or more people into the warehouse will also increase the cooling loss of the storeroom. We should try to avoid open doors, to prevent a lot of hot air into the warehouse. Of course, when the storeroom enters the stock frequently or the volume is too large, the heat load increases sharply, and it will usually take a long time to cool down to the specified temperature. 2. The surface of the evaporator is too thick or too much dust, and the effect of heat transfer is reduced. Temperature drop leads to another important reason is the slow evaporator heat transfer efficiency is low, which is mainly due to the evaporator surface frost layer is too thick or dust caused by too much. Because the surface temperature of the evaporator of the cold store is mostly lower than 0 C, and the humidity of the storeroom is relatively high, the moisture in the air is liable to frosting or even ice on the evaporator surface, which will affect the heat transfer effect of the evaporator. In order to prevent the surface frost of the evaporator from being too thick, it is necessary to defrost it regularly. The following two simple defrosting methods are introduced: (1) downtime and defrosting. To stop the operation of the compressor, open the warehouse door, let the temperature rise, the automatic defrosting layer, and then restart the compressor. Second, the frost. When the goods in the warehouse are removed, the surface of the evaporator is washed directly with the higher temperature tap water to dissolve or fall off the frost layer. In addition to the poor heat transfer effect of evaporator, the heat transfer efficiency of the evaporator surface is too thick and the heat transfer efficiency will decrease obviously. 3. There are more air or frozen oil in the evaporator, and the heat transfer effect is reduced. Once the evaporator heat transfer tube attached to the surface of oil more, the heat transfer coefficient will decrease, the same, if there are more air in the heat pipe, the heat exchange area of the evaporator is reduced, the heat transfer efficiency will be significantly decreased, temperature drop speed will slow down. Therefore, in daily operation and maintenance, we should pay attention to timely clearing the oil inside the evaporator heat transfer tube and discharging the air in the evaporator, so as to improve the heat transfer efficiency of the evaporator. 4. The throttle valve regulates improper or blockage, and the refrigerant flow is too large or too small Improper adjustment or blockage of the throttle valve will directly affect the flow of refrigerant flow into the evaporator. When the throttle opening is too high, the refrigerant flow is too large, the evaporation pressure and evaporation temperature, storage temperature will slow down; at the same time, when the throttle valve through a small opening or blockage, the refrigerant flow is reduced, the cooling capacity decreases, the real temperature drop speed of the same library will slow down. It is generally possible to determine whether the flow rate of the throttle valve is appropriate by observing the evaporation pressure, the evaporation temperature and the frosting condition of the suction tube. Blockage of throttle valve is an important factor affecting the flow of refrigerant, and the main cause of choking of throttle valve is ice blocking and dirty plugging. Ice jam is due to poor performance of the dryer, containing water in the refrigerant flowing through the throttle valve, when the temperature is below 0 DEG C, the water freezes and refrigerant throttle valve plug hole; a dirty block is due to the throttle valve inlet filter to accumulate more dirt, refrigerant circulation, plug formation. 5. The cooling capacity in the system is insufficient and the refrigera
The application mechanism of ozone in cold storage
The application mechanism of ozone in cold storage
Time of issue : 2020-01-15 10:03:00
CZBJ4 type of ship design and development of Shandong Furuide refrigeration and Air Conditioning Co. Ltd. with flake ice machine running for nearly 1 years after the actual test, in June 2, 2008 passed the acceptance of experts. The CZBJ4 series marine ice machine has adopted a number of unique new technologies. The ice is made directly from sea water. The first freezing rate of the sea water is 100%, the thickness of the sheet ice is uniform and the temperature is low, and the ice maker is stable and reliable, and the thermal efficiency is high. It is a difficult problem to overcome the great loss of cold water and low efficiency. Experts believe: CZBJ series marine ice machine used in fishing, not only can save the cost of the ice, and the sea ice (melting temperature -1.7) lighter (ice melting temperature of 0 DEG C) characteristic of low melting temperature, improve the aquatic product preservation quality and prolong the storage period, which can increase the fishing boat the working days. Therefore, the economic benefit of the fishing boat can be greatly
See more information
CZBJ4 type of ship design and development of Shandong Furuide refrigeration and Air Conditioning Co. Ltd. with flake ice machine running for nearly 1 years after the actual test, in June 2, 2008 passed the acceptance of experts. The CZBJ4 series marine ice machine has adopted a number of unique new technologies. The ice is made directly from sea water. The first freezing rate of the sea water is 100%, the thickness of the sheet ice is uniform and the temperature is low, and the ice maker is stable and reliable, and the thermal efficiency is high. It is a difficult problem to overcome the great loss of cold water and low efficiency. Experts believe: CZBJ series marine ice machine used in fishing, not only can save the cost of the ice, and the sea ice (melting temperature -1.7) lighter (ice melting temperature of 0 DEG C) characteristic of low melting temperature, improve the aquatic product preservation quality and prolong the storage period, which can increase the fishing boat the working days. Therefore, the economic benefit of the fishing boat can be greatly
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