supermarket refrigerated showcase » article > commercial refrigeration > Display cases The inspection method for the presence of air in the system
Display cases The inspection method for the presence of air in the system
author: supermarket refrigerated showcase category: commercial refrigeration Views: 495Time: 2016-08-22
display cases The inspection method for the presence of air in the system
(1) The pointer of the refrigerator exhaust pressure gauge swings. The swing of the pressure gauge pointer is not only caused by the air in the display cases system, but sometimes the uneven displacement can also cause the pressure gauge pointer to swing. Therefore, it should be distinguished. If the displacement is not continuous, the pointer swings at the same frequency as the piston, the pointer swings faster and the swing amplitude is also small. When there is air, the pointer swings slightly larger and swings slowly.
(2) Both the exhaust pressure and the exhaust temperature are greater than the normal pressure and temperature.
(3) The calculation method can determine whether there is air in the system. If there is air in the system, its condensation pressure is high. After the air enters the system, it is generally stored in the condenser and accumulator. Because of the presence of liquid ammonia in the
display cases, a liquid seal is formed, and the air will not enter the evaporator. If the low pressure system draws air into it because it is not tight, the air will be sucked into the condenser by the refrigerator along with the refrigerant vapor. Because air is non-condensable, its relative density is higher than ammonia gas, but smaller than ammonia liquid, so air exists at the junction of ammonia liquid and ammonia gas. For this reason, the condensed gas outlet of the vertical ammonia condenser is located in the middle and lower part of the condenser. For the Freon system, air is lighter than fluorine, so air exists in the upper part of the horizontal condenser, and the air discharge operation can be performed in the exhaust valve of the refrigerator with multiple channels. There is air in the system, which is not good for refrigeration work and should be released in time.
The above article comes from refrigerated showcase display cases and supermarket display cases. For details, please log in: www.ihdjx.com
Free order hotline: +86 18019567573
>
n
keywords:
Ranking of similar articles
- Large supermarket display ark how to choose the right goods
- , a refrigerated display showcase meat cooler features of the product
- In September 2012, refrigerated showcase west chung
- Correctly use refrigerated showcase supermarket refrigerated showcase the matters needing attention
- Refrigerated showcase ltd. refrigeration New Year's day holiday notice
- Refrigerated showcase walk - in cooler tell you: frozen and refrigeration technology
- How to choose suits own walk - at low temperature in the cooler
- The food hygiene safety need to display cases, walk - in the support of the cooler
- Supermarket glass door display walk - cooler in supermarket refrigerated showcase the price
- How to choose and horizontal display cooler supermarket refrigerated showcase prices
- How to deal with the poor sealing of the medical supermarket refrigerated showcase
- How to discern bad inside freezer part
- Construction of vaccine cold storage requirements?
- Supermarket display cases which style is more energy-saving
- In the shopping malls supermarkets ltd. refrigeration space utilization
- display cases The secondary faulty machine has a large noise
- Display cooler secondary failure machine has high noise (two)
- Various techniques for using display cases in daily life
- Why is the temperature drop of the newly opened refrigerator very slow?
- Plant-based foods in walk-in cooler
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