supermarket refrigerated showcase » article > display freezer > refrigerated showcase small and medium supermarket refrigerated showcase ammonia refrigeration system design example
refrigerated showcase small and medium supermarket refrigerated showcase ammonia refrigeration system design example
refrigerated showcase small and medium supermarket refrigerated showcase ammonia refrigeration system design example
Concrete beams, columns and slabs are built. The outer wall of the heat insulation layer and the attic are foamed on-site with polyurethane, the inner wall of the freezing room is pasted with cork, the floor is made of slag and cement ventilation pipes are installed. The design calculation of the entire refrigeration system is as follows.
2. Design conditions
1) Meteorological and hydrological data The outdoor calculated temperature in summer is 35°C, the relative humidity is 50% to 76%, and the solar radiation is 30 north latitude. Considering that the groundwater temperature is 20°C, deep well water can be set and circulating water can be used.
2) The production capacity of refrigeration capacity is 500 tons, and the freezing capacity is 20t/d.
3) The refrigeration system adopts ammonia direct evaporation refrigeration system. The temperature in the refrigerating room is -18℃, and the temperature in the freezing room is -23℃.
4) Plane layout of refrigerated supermarket refrigerated showcase
Design calculation The design calculation of the entire refrigeration system is carried out after the plane and elevation of the supermarket refrigerated showcase and the specific building structure and envelope structure are determined. First calculate the cold consumption of the supermarket refrigerated showcase, then calculate the refrigeration machine parameters and design, the calculation procedure is as follows.
1. supermarket refrigerated showcase The heat transfer coefficient calculation of the enclosure structure mainly calculates the heat transfer coefficient of external walls, internal walls, attic floors and floors.
2. Calculation of the cold consumption of supermarket refrigerated showcase
(1) The heat transfer area of the supermarket refrigerated showcase heat transfer caused by the heat transfer of the supermarket refrigerated showcase. Hot area, howeverThen calculate the cold consumption.
① supermarket refrigerated showcase The heat transfer area of the enclosure structure. Calculation of the heat transfer area of the supermarket refrigerated showcase.
② Supermarket refrigerated showcase Calculation of the cold consumption of the enclosure structure.
(2) Cold consumption of food cold processing. As the cold storage room is a productive supermarket refrigerated showcase, the cold consumption when entering the cold storage room for storage must be allocated to the cold storage room in proportion to the freezing capacity per day and night. The supermarket refrigerated showcase has three freezing rooms, each with a freezing capacity of 6.5t/d, totaling 19.5t/d. The three cold storage rooms are shared proportionally, and the purchase volume of each room is 6.5t/d. Assume that the frozen food is pork.
① Freeze room.
②Frozen thing cold storage room.
The above article comes from refrigerated showcase supermarket refrigerated showcase, supermarket refrigerated showcase, supermarket refrigerated showcase price, please log in: www.ihdjx.com
>
n3
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)
- Selection of expansion valve in display cases (2)
- Display cooler evaporator embedding and production
- 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