supermarket refrigerated showcase » article > commercial refrigeration > display cases The structural impact of refrigerated food (four)
display cases The structural impact of refrigerated food (four)
author: supermarket refrigerated showcase category: commercial refrigeration Views: 723Time: 2016-08-22
display cases The structural impact of refrigerated food (four)
4) Reduce the parallel operation of cold rooms with different evaporating temperatures. Because the refrigeration compressors of the same system can only operate at the same evaporating temperature Therefore, if cold storage rooms with different evaporating temperatures are operated in parallel, the display cases with relatively higher evaporating temperatures will be in a high energy-consuming operation state. The higher the heat load of the cold storage room, the higher the energy consumption. This should be avoided as much as possible. The emergence of the situation. It is worth noting that in the dual-temperature display cases of Freon refrigeration, adding a back pressure valve to the return pipe of the high-temperature display cases and adding a one-way valve to the return pipe of the low-temperature display cases is a typical approach that does not save energy and should not be promoted.
5) Adjust the off-line parameters of the refrigeration system
(1) Display cases with multi-point temperature parameters. Room temperature adjustment. The ideal control method for the room temperature of the display cases takes the average temperature of the room of the display cases, the inlet and outlet temperatures of the air cooler as input parameters, compiles an appropriate control program, and adjusts it through the PLC. This can meet the energy-saving requirements. It can meet the high-precision temperature adjustment needs of some display cases.
(2) Variable evaporation temperature adjustment. The evaporating temperature is adjusted based on the heat load of the display cases and the refrigeration capacity of the refrigeration system, so that the refrigeration capacity and heat load of the compressor reach a dynamic equilibrium point, which can not only achieve the purpose of energy saving, but also make the energy adjustment more reasonable. However, when implementing variable evaporating temperature adjustment, it is difficult to control the refrigerant throttling device and can only be adjusted in a small range.
(3) Variable flow adjustment. The adjustment of refrigerant flow and air flow parameters is directly related to the cooling capacity of the display cases room cooling distribution equipment and the room temperature of the display cases. It is also one of the contents that should be paid attention to in the energy-saving automatic control of the refrigerated display cases. Through variable flow regulation, the power of the fan or pump can be effectively reduced, and energy saving can generally be 4%.
(4) Relative humidity adjustment. For the adjustment of display cases that require high relative humidity to refrigerate, it is required to reduce the logarithmic average temperature difference between the surface of the evaporator and the air in the display cases as much as possible. If necessary, an indirect refrigeration system with a refrigerant can also be used. In addition, air defrosting and a refrigeration system that restores the defrosting water to the display cases can also be used. For the adjustment of refrigerated display cases with low relative humidity requirements, it is necessary to reduce the heat load of the refrigerated display cases while meeting the relative humidity requirements, and to avoid unnecessary outdoor heat and humidity loads during airflow control.
The above articles are from refrigerated showcase display cases and supermarket display cases. For details, please visit: www.ihdjx.com
Free order hotline: +86 18019567573
keywords：
Ranking of similar articles
- Large supermarket display ark how to choose the right goods
- In September 2012, refrigerated showcase west chung
- , a refrigerated display showcase meat cooler features of the product
- Correctly use refrigerated showcase supermarket refrigerated showcase the matters needing attention
- How to choose suits own walk - at low temperature in the cooler
- Refrigerated showcase ltd. refrigeration New Year's day holiday notice
- The food hygiene safety need to display cases, walk - in the support of the cooler
- Refrigerated showcase walk - in cooler tell you: frozen and refrigeration technology
- How to choose and horizontal display cooler supermarket refrigerated showcase prices
- Supermarket glass door display walk - cooler in supermarket refrigerated showcase the price
- Construction of vaccine cold storage requirements?
- Plant-based foods in walk-in cooler
- Display cooler secondary failure machine has high noise (two)
- How to discern bad inside freezer part
- In the shopping malls supermarkets ltd. refrigeration space utilization
- display cases The secondary faulty machine has a large noise
- Supermarket display cases which style is more energy-saving
- How to deal with the poor sealing of the medical supermarket refrigerated showcase
- Why is the temperature drop of the newly opened refrigerator very slow?
- Various techniques for using display cases in daily life
Latest news articles
- May 2011 refrigerated showcase Qingyuan Tour
- refrigerated showcase Refrigeration Equipment Co., Ltd. growth process
- Refrigerated showcase major sales walk - cooler in class
- Refrigerated showcase display cooler written commercial display cooler legend
- Refrigerated showcase walk - in cooler energy-saving progresses steadily
- 2012 take care of the old man from the supermarket refrigerated showcase
- refrigerated showcase Tip: Which fruits are not suitable for placing in the fruit refrigerated showcase
- Dragon fruit reveals ark makes pitaya ornamental fruit
- Watermelon fresh-keeping refrigerator can better preserve the nutrients of watermelon
- Represent the frozen watermelon fruit for storage
- Hairy crabs freezer frozen taste more fresh
- How hairy crabs fresh refrigerated showcase display cooler tell you
- Large supermarket display ark how to choose the right goods
- Small convenience store owner should show how to choose the convenience stores ltd. refrigeration
- Refrigerated showcase ltd. refrigeration has been a leader in innovation and energy saving
- In September 2012, refrigerated showcase west chung
- Refrigerated showcase walk - in cooler cleaner which aspects should be paid attention to
- Correctly use refrigerated showcase supermarket refrigerated showcase the matters needing attention
- , a refrigerated display showcase meat cooler features of the product
- Refrigerated showcase walk - in the cooler is icy