【Mechanical Equipment Technology Edition】Daily Question 20180306: Common Faults in Refrigeration Systems (9.12)
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This post was last edited by YORK Industrial Refrigeration on 2018-3-12 at 09:24. Starting from now, in order to enhance communication among users, a \"Question of the Day\" activity has been launched on the Mechanical Equipment Technology forum. We hope everyone will participate actively to progress and improve together! ! ! Rewards: 3 points for active participation, 10-15 points for correct answers. This question is valid for two days; no score will be assigned if more than two days pass. Regarding the questions asked in the previous session, many people from Sichuan overlooked one issue. Here’s a reminder. Why is nitrogen used to pressurize the refrigeration system? What about without air? Nitrogen is dry; water present in air can corrode and damage the compressor. ============================== High-quality promotions: Mechanical equipment——Maintenance procedures for York screw compressors https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1806833 Mechanical equipment——Upgrading of York Quinton control centers https://bbs.hcbbs.com/thread-1804837-1-1.html Mechanical equipment——Major repairs for GEA Grasso screw compressors https://bbs.hcbbs.com/thread-1800467-1-1.html Mechanical equipment——Disassembly and maintenance of British HOWDEN screw compressors https://bbs.hcbbs.com/thread-1832529-1-1.html Mechanical equipment——Disassembly and maintenance of Japanese Maekawa MYCOM screw compressors https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=
1. The air has a certain level of humidity, while the refrigeration system requires extremely high levels of dryness and cleanliness. 2. Using a compressor to compress air has its disadvantages; the compression ratio is low, which puts strain on the unit. 3. It affects the lubrication system of the compressor
Because moisture is present in the air, it can cause rusting.
1. Air contains a certain level of humidity, while refrigeration systems require extremely high levels of dryness and cleanliness. 2. There are disadvantages to using a compressor for compressing air: the compression ratio is low, which puts strain on the unit. 3. It also affects the compressor’s lubrication system.
1. The impurity gases in the air are numerous and complex, and they may contaminate the refrigerant； 2. Moisture in the air can cause steel to corrode and rust, reducing its service life. The rust that forms at the same time can also clog the refrigerant lines ； 3. In some ice-making conditions, water vapor in the air may also condense into ice, causing the capillary tubes to burst
Because the air contains moisture, ice blockage can easily occur during the cooling process
1. Air contains a certain level of humidity, while refrigeration systems require extremely high levels of dryness and cleanliness. 2. Using a compressor to compress air has disadvantages; the compression ratio is low, which puts strain on the unit. 3. It also affects the compressor’s lubrication system
1. The impurity gases in the air are numerous and complex, and they may contaminate the refrigerant； 2. Moisture in the air can cause steel to corrode and rust, reducing its service life. The rust that forms at the same time can also clog the refrigerant lines ； 3. In some ice-making conditions, water vapor in the air may also condense into ice, causing the capillary tubes to burst
There is a possibility of moist air entering, and the formation of condensation water can lead to liquid slugging
1. The impurity gases in the air are numerous and complex, and they may contaminate the refrigerant； 2. Moisture in the air can cause steel to corrode and rust, reducing its service life. The rust that forms at the same time can also clog the refrigerant lines ； 3. In some ice-making conditions, water vapor in the air may also condense into ice, causing the capillary tubes to burst
1. Air contains a certain level of humidity, and refrigeration systems require extremely high levels of dryness and cleanliness; using a compressor to compress air has disadvantages, as the compression ratio is low, which puts strain on the unit. 2. It also affects the compressor’s lubrication system