supermarket refrigerated showcase » article > display freezer > Supermarket refrigerated showcase vapor compression refrigeration principle
Supermarket refrigerated showcase vapor compression refrigeration principle
supermarket refrigerated showcase vapor compression refrigeration principle
Although supermarket refrigerated showcase has many kinds of refrigeration methods, such as vapor compression, absorption, adsorption, thermoelectric refrigeration, etc., but for supermarket refrigerated showcase system , Because the heat load is generally relatively large and the evaporation temperature is below 0°C, other cooling methods except vapor compression are not applicable. Therefore, the current supermarket refrigerated showcase generally uses vapor compression cooling. The following is a brief introduction to the vapor compression refrigeration method of supermarket refrigerated showcase.
single-stage vapor compression refrigeration 1. Single-stage vapor compression refrigeration theoretical cycle
1) The working principle of single-stage vapor compression refrigeration A supermarket refrigerated showcase A single-stage vapor compression refrigerator needs at least four basic components: compressor, condenser, throttle valve and evaporator composition. They are connected in turn by pipes to form a closed system. The refrigerant circulates in the system, constantly changes in state, and exchanges energy with the outside world to achieve the purpose of refrigeration. The refrigerant undergoes four state changes in the system: compression, cooling and condensation, throttling, and evaporation. The compressor plays the role of compressing and transporting refrigerant vapor, it is the gas heart of the whole system. The
throttle valve has the effect of throttling and reducing the pressure of the refrigerant, and at the same time, it can adjust the refrigerant flow into the evaporator: the evaporator is a heat exchange device that absorbs heat (output cold energy) to achieve the purpose of producing cold energy. The condenser is a heat exchange device that outputs heat. It transfers the heat absorbed by the refrigerant from the evaporator and the heat converted by the compression work to the cooling medium. The work consumed by the compressor plays a compensation role, so the refrigerant can continuously transfer the heat of the low-temperature object to the high-temperature object, so as to achieve the purpose of producing cold energy. In the actual single-stage vapor compression refrigeration device, in addition to the above four main equipment, there are some auxiliary equipment such as oil separators. They are set up to improve the economic efficiency of the operation of the device and ensure the safety of operation, and have no essential influence on the analysis of the refrigeration cycle of the supermarket refrigerated showcase.
The above articles are from refrigerated showcase supermarket refrigerated showcase and display cooler
. For details, please log in: www.ihdjx.com Free Order Hotline: +86 18019567573 Contact: Mr. Shao 26066250@qq.com
keywords:
Ranking of similar articles
- refrigerated showcase Refrigeration Equipment Co., Ltd. growth process
- Watermelon fresh-keeping refrigerator can better preserve the nutrients of watermelon
- Refrigerated showcase ltd. refrigeration has been a leader in innovation and energy saving
- The advantage of western restaurant made salad bar - refrigerated showcase
- Refrigerated showcase warm, kick off the new offers
- Don't put the frozen food in shenzhen supermarket display cooler, rapid freezer storage in shenzhen more than two
- Supermarket walk - cooler in fruits and vegetables preservation equipment
- Refrigerated showcase display cooler company 2012 annual celebration
- How to enhance the international competitiveness of the display cases industry
- display cases refrigeration but noisy maintenance (2)
- Commercial refrigeration secondary failure machine noise is large (two)
- Display cooler evaporator embedding and production
- Selection of expansion valve in display cases (2)
- Supermarket commercial refrigeration price range of refrigeration products directly affect the market
- Supermarket refrigerated showcase, supermarket refrigerated showcase, frozen ark excess capacity
- The accelerated development of supermarket refrigerated showcase is conducive to stimulating consumption
- General principles of design and layout of display cooler refrigeration system (3)
- General principles for the design and layout of walk-in cooler refrigeration systems (2)
- The green and energy-saving supermarket supermarket refrigerated showcase has been improving
- display cases The personal hygiene impact of the staff
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