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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
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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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Three lower cold storage operation cost

Three lower cold storage operation cost

  • Categories:NEWS
  • Author:
  • Origin:
  • Time of issue:2020-01-15 10:01

(Summary description)To control and reduce the operating costs of cold storage, in the operation and management of equipment, should focus on the "oil, fluorine, water and electricity"; in the warehouse management, should be strictly "ice cream, water, light, door five; in the quality management, the use of advanced technology and technology, improve product quality. The experts in the large market of air conditioning and refrigeration point out that the main parameters are evaporation pressure, temperature and condensation pressure and temperature in the refrigeration system. Is an important basis for operation and adjustment, according to the actual conditions and system changes, constantly adjust and control the operation parameters, the operation parameters in the economical and reasonable, can ensure the equipment and storage of product safety, make full use of the equipment efficiency, and save water, electricity, oil, etc..
1, prevent the evaporation temperature to be too low


A, the temperature difference between the evaporation temperature and the storeroom temperature increases, the evaporation temperature will be too low, which will lead to the decrease of the cooling coefficient and the increase of energy consumption. It is estimated that when the other conditions are constant, the power consumption will be more 1~2% when the evaporation temperature is reduced by 1 degrees centigrade. In addition, the increase of temperature difference will increase the dehumidification of the air cooler and reduce the humidity of the storeroom, which causes the increase of food dry consumption and the decrease of food quality.


B, the evaporation temperature commonly used in our country. The evaporation temperature and storage temperature difference is 10 DEG C, fruit and vegetable refrigerator evaporating temperature is generally designed as -1010 degrees Celsius, frozen storage at -28 deg.c freezing between -33 DEG C, and the actual operation, many fruits and vegetables storage temperature at 15 degrees Celsius, while Europe and other economically developed countries, evaporation temperature with the warehouse temperature difference is 3~5 DEG C.


C, causes of low evaporation temperature and Solutions


(1) (cooler) evaporator have problems too small design, or the actual storage and storage plan design varieties of different varieties, the heat load increases, for example, to the cold storage of apple, for storage of garlic sprouts, due to a region of garlic harvest only a few days, can not be the same as apple daily purchase volume according to the storage capacity of 5%-15%, but 3~5 days will be filled with, so as to timely reduce the temperature to proper storage temperature only by reducing the evaporation temperature to achieve. The evaporation area of the evaporator should be increased or the evaporator should be replaced.


(2) when the compressor cooling capacity is too large, the energy of the compressor is not reduced in time. The cold storage compressor is matched according to the maximum load of the refrigeration system, while the maximum load of fruit and vegetable cold storage is in the stage of goods warehousing. Most of the other time, the load of the compressor is less than 50%. When the temperature at the end of the storage is reduced to a suitable storage temperature, the load of the system will be greatly reduced. For example, a larger machine will still be opened, so that a large horse drawn cart will be formed. The temperature difference will increase and the power consumption will increase. The number of working cylinders of the compressor should be reduced or the number of working cylinders should be reduced by the energy adjustment device according to the change of the storeroom load.


(3) failed to defrost the evaporator coil evaporator frosting to become smaller, the heat transfer coefficient of thermal resistance increases, reduce the heat transfer effect, reduce the evaporation of refrigerant in the compressor, the energy unchanged, will lead to the evaporation pressure of the system is decreased and the evaporation temperature should be relatively reduced, so in a timely manner to defrost.


(4) the evaporator has lubricating oil in the evaporator will form a layer of oil film on the pipe wall of the evaporator coil, will also make the heat transfer coefficient decreases, the increase in thermal resistance, reduce the heat transfer effect, reduce the amount of refrigerant evaporation, resulting in evaporation pressure reducing system, corresponding to the evaporation temperature decreased, so it should be in time for the system to add oil, lubricating oil and defrosting out of the evaporator with hot ammonia.


(5) the expansion valve opens too small, and the expansion valve opens too small, and the system has less liquid supply. When the compressor energy is constant, the evaporation pressure decreases, resulting in the evaporation temperature decreasing. The opening of the expansion valve sh

Three lower cold storage operation cost

(Summary description)To control and reduce the operating costs of cold storage, in the operation and management of equipment, should focus on the "oil, fluorine, water and electricity"; in the warehouse management, should be strictly "ice cream, water, light, door five; in the quality management, the use of advanced technology and technology, improve product quality. The experts in the large market of air conditioning and refrigeration point out that the main parameters are evaporation pressure, temperature and condensation pressure and temperature in the refrigeration system. Is an important basis for operation and adjustment, according to the actual conditions and system changes, constantly adjust and control the operation parameters, the operation parameters in the economical and reasonable, can ensure the equipment and storage of product safety, make full use of the equipment efficiency, and save water, electricity, oil, etc..
1, prevent the evaporation temperature to be too low


A, the temperature difference between the evaporation temperature and the storeroom temperature increases, the evaporation temperature will be too low, which will lead to the decrease of the cooling coefficient and the increase of energy consumption. It is estimated that when the other conditions are constant, the power consumption will be more 1~2% when the evaporation temperature is reduced by 1 degrees centigrade. In addition, the increase of temperature difference will increase the dehumidification of the air cooler and reduce the humidity of the storeroom, which causes the increase of food dry consumption and the decrease of food quality.


B, the evaporation temperature commonly used in our country. The evaporation temperature and storage temperature difference is 10 DEG C, fruit and vegetable refrigerator evaporating temperature is generally designed as -1010 degrees Celsius, frozen storage at -28 deg.c freezing between -33 DEG C, and the actual operation, many fruits and vegetables storage temperature at 15 degrees Celsius, while Europe and other economically developed countries, evaporation temperature with the warehouse temperature difference is 3~5 DEG C.


C, causes of low evaporation temperature and Solutions


(1) (cooler) evaporator have problems too small design, or the actual storage and storage plan design varieties of different varieties, the heat load increases, for example, to the cold storage of apple, for storage of garlic sprouts, due to a region of garlic harvest only a few days, can not be the same as apple daily purchase volume according to the storage capacity of 5%-15%, but 3~5 days will be filled with, so as to timely reduce the temperature to proper storage temperature only by reducing the evaporation temperature to achieve. The evaporation area of the evaporator should be increased or the evaporator should be replaced.


(2) when the compressor cooling capacity is too large, the energy of the compressor is not reduced in time. The cold storage compressor is matched according to the maximum load of the refrigeration system, while the maximum load of fruit and vegetable cold storage is in the stage of goods warehousing. Most of the other time, the load of the compressor is less than 50%. When the temperature at the end of the storage is reduced to a suitable storage temperature, the load of the system will be greatly reduced. For example, a larger machine will still be opened, so that a large horse drawn cart will be formed. The temperature difference will increase and the power consumption will increase. The number of working cylinders of the compressor should be reduced or the number of working cylinders should be reduced by the energy adjustment device according to the change of the storeroom load.


(3) failed to defrost the evaporator coil evaporator frosting to become smaller, the heat transfer coefficient of thermal resistance increases, reduce the heat transfer effect, reduce the evaporation of refrigerant in the compressor, the energy unchanged, will lead to the evaporation pressure of the system is decreased and the evaporation temperature should be relatively reduced, so in a timely manner to defrost.


(4) the evaporator has lubricating oil in the evaporator will form a layer of oil film on the pipe wall of the evaporator coil, will also make the heat transfer coefficient decreases, the increase in thermal resistance, reduce the heat transfer effect, reduce the amount of refrigerant evaporation, resulting in evaporation pressure reducing system, corresponding to the evaporation temperature decreased, so it should be in time for the system to add oil, lubricating oil and defrosting out of the evaporator with hot ammonia.


(5) the expansion valve opens too small, and the expansion valve opens too small, and the system has less liquid supply. When the compressor energy is constant, the evaporation pressure decreases, resulting in the evaporation temperature decreasing. The opening of the expansion valve sh

  • Categories:NEWS
  • Author:
  • Origin:
  • Time of issue:2020-01-15 10:01
Information
To control and reduce the operating costs of cold storage, in the operation and management of equipment, should focus on the "oil, fluorine, water and electricity"; in the warehouse management, should be strictly "ice cream, water, light, door five; in the quality management, the use of advanced technology and technology, improve product quality. The experts in the large market of air conditioning and refrigeration point out that the main parameters are evaporation pressure, temperature and condensation pressure and temperature in the refrigeration system. Is an important basis for operation and adjustment, according to the actual conditions and system changes, constantly adjust and control the operation parameters, the operation parameters in the economical and reasonable, can ensure the equipment and storage of product safety, make full use of the equipment efficiency, and save water, electricity, oil, etc..
1, prevent the evaporation temperature to be too low
 
 
A, the temperature difference between the evaporation temperature and the storeroom temperature increases, the evaporation temperature will be too low, which will lead to the decrease of the cooling coefficient and the increase of energy consumption. It is estimated that when the other conditions are constant, the power consumption will be more 1~2% when the evaporation temperature is reduced by 1 degrees centigrade. In addition, the increase of temperature difference will increase the dehumidification of the air cooler and reduce the humidity of the storeroom, which causes the increase of food dry consumption and the decrease of food quality.
 
 
B, the evaporation temperature commonly used in our country. The evaporation temperature and storage temperature difference is 10 DEG C, fruit and vegetable refrigerator evaporating temperature is generally designed as -1010 degrees Celsius, frozen storage at -28 deg.c freezing between -33 DEG C, and the actual operation, many fruits and vegetables storage temperature at 15 degrees Celsius, while Europe and other economically developed countries, evaporation temperature with the warehouse temperature difference is 3~5 DEG C.
 
 
C, causes of low evaporation temperature and Solutions
 
 
(1) (cooler) evaporator have problems too small design, or the actual storage and storage plan design varieties of different varieties, the heat load increases, for example, to the cold storage of apple, for storage of garlic sprouts, due to a region of garlic harvest only a few days, can not be the same as apple daily purchase volume according to the storage capacity of 5%-15%, but 3~5 days will be filled with, so as to timely reduce the temperature to proper storage temperature only by reducing the evaporation temperature to achieve. The evaporation area of the evaporator should be increased or the evaporator should be replaced.
 
 
(2) when the compressor cooling capacity is too large, the energy of the compressor is not reduced in time. The cold storage compressor is matched according to the maximum load of the refrigeration system, while the maximum load of fruit and vegetable cold storage is in the stage of goods warehousing. Most of the other time, the load of the compressor is less than 50%. When the temperature at the end of the storage is reduced to a suitable storage temperature, the load of the system will be greatly reduced. For example, a larger machine will still be opened, so that a large horse drawn cart will be formed. The temperature difference will increase and the power consumption will increase. The number of working cylinders of the compressor should be reduced or the number of working cylinders should be reduced by the energy adjustment device according to the change of the storeroom load.
 
 
(3) failed to defrost the evaporator coil evaporator frosting to become smaller, the heat transfer coefficient of thermal resistance increases, reduce the heat transfer effect, reduce the evaporation of refrigerant in the compressor, the energy unchanged, will lead to the evaporation pressure of the system is decreased and the evaporation temperature should be relatively reduced, so in a timely manner to defrost.
 
 
(4) the evaporator has lubricating oil in the evaporator will form a layer of oil film on the pipe wall of the evaporator coil, will also make the heat transfer coefficient decreases, the increase in thermal resistance, reduce the heat transfer effect, reduce the amount of refrigerant evaporation, resulting in evaporation pressure reducing system, corresponding to the evaporation temperature decreased, so it should be in time for the system to add oil, lubricating oil and defrosting out of the evaporator with hot ammonia.
 
 
(5) the expansion valve opens too small, and the expansion valve opens too small, and the system has less liquid supply. When the compressor energy is constant, the evaporation pressure decreases, resulting in the evaporation temperature decreasing. The opening of the expansion valve should be increased.
 
 
2. To prevent the high condensation pressure from condensing pressure, the compression function will be increased, the cooling capacity is reduced, the cooling coefficient decreases, and the energy consumption increases. It is estimated that the condensing temperature corresponding to the condensation pressure will increase by about 3% at 1 degrees centigrade when the other conditions are constant. It is generally believed that the more economical and reasonable condensation temperature is 3~5 C higher than the water temperature of the cooling water. Causes and solutions to increase the pressure of the condenser:
 
 
(1) the condenser was selected too small. Replace or increase the condenser.
 
 
(2) the number of the condensers in the operating table is few. Increase the number of running stations.
 
 
(3) the flow of cooling water is insufficient. Increase the number of pumping stations and increase the flow of water.
 
 
(4) the temperature of the cooling water is too high. Add cold water (tap water or well water); the use of defrosting water; ensure the cooling effect of the cooling tower, cooling tower is installed outdoors, due to the action of the fan, there will be a lot of dust, leaves and insects into the tower, a long time will cause the blockage of cooling tower and pipeline, also use the time for a long time, water spray holes will be debris or jamming, the cooling effect of cooling tower and should be cleaned regularly, keep clean. When the water temperature is close to the air wet bulb temperature, the cooling tower fan should be shut down to reduce the power consumption.
 
 
(5) the heat transfer area of the condenser is reduced. Sufficient heat transfer area is an important guarantee for the heat transfer effect of the condenser. Especially the refrigeration system with condensing unit, condenser with liquid storage device because of this unit function, when the condenser level is high, seriously affecting the cooling effect of the condenser, condensing temperature and pressure, compressor power consumption increases, therefore, the operation should pay attention to the change of the liquid level, timely discharge of condensed liquid in the condenser the filling in refrigerant, strictly control the entry

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