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07/26/2020
How to select the thermal expansion valve?
1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.
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04/20/2023
Diagnosis and Troubleshooting of Refrigeration Compressor Failure
The main content of the following is the failure diagnosis and troubleshooting related to the refrigeration compressor system. After reading the following content, you will know how to diagnose a refrigeration compressor failure.
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04/30/2022
How to test a contactor?
Check the rated voltage of the contactor coil and connect it to the matching power supply. Open the switch and check whether the contactor is closed. If it cannot be pulled in, it indicates that the contactor coil is faulty.
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06/28/2020
Trouble analysis and elimination of semi-hermetic compressor motor
Trouble analysis and elimination of semi-hermetic compressor motor Abstract:Semi—hermetic compressor often be used in the water—cooling unit of air conditioning system,and it’S motor which work in rather high temperature and pressure condition,even work with refrigerator and oil, has a poor working condition.
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08/13/2020
Water-cooled chillers need to be cautious when choosing cooling towers
In many special use environments, companies need to apply water-cooled chillers. Because water-cooled chillers need the help of cooling towers during operation, they need to follow the
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07/18/2020
Maintenance method for wear of refrigerator refrigeration compressor
The application of screw refrigeration compressors is becoming more and more common, and some of them have entered the period of frequent failures. When the abrasion of the female and male rotors, body, and exhaust end seat of the refrigeration compressor reaches above 0.65rnm, vibration will occur when the refrigeration compressor is running, the sound is abnormal, the cooling capacity is reduced, and the compressor cannot work normally.
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01/02/2021
Why Genuine Danfoss?
Watch out for counterfeits to protect your image. There is every reason to make sure that the product you pick up is genuine Danfoss quality. All Danfoss products are built on an impressive platform of know how and experience. The material we use and 器2 䀀 ᅵ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦 ᮔDž༬皧奖ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉
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12/23/2020
Air separation equipment and industrial gas are dependent on each other
Air separation equipment is used to produce high-purity gas and is one of the core equipment in the industrial field. The complete set of air separation equipment uses cryogenic rectification separation technology to separate air to produce high-purity oxygen, nitrogen, argon and other gases, which are widely used in various fields of the national economy.
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09/09/2020
The influence of machining on fatigue life
The residual compressive stress introduced by shot blasting/shot peening is a percentage of the final tensile stress strength, and this ratio increases as the strength/hardness of the part material itself increases. High-strength/hardness metals are more brittle and more sensitive to surface defects. Shot blasting/shot peening will allow these high-strength metals to be used in fatigue-prone working conditions. Aircraft landing gear is usually designed with a fatigue strength of 300 ksi (2068 MPa), combined with shot blasting/shot peening.
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07/26/2020
Common faults and troubleshooting methods of refrigeration compressors
The compressor is the "heart" of the refrigeration system. The compressor sucks low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and then discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle to realize the refrigeration cycle. The editor summarizes the common faults and troubleshooting methods of the compressor to help you better maintain the compressor.