Danfoss Compressor SM124A7CAF

08/14/2020

Air conditioner repair-come here

I learned from a senior air conditioner repairer that we can judge the general failure of the air conditioner by observing the characteristics and operation of the air conditioner.

06/14/2020

Chinese refrigeration compressor industry has huge development space and good prospects

Chinese refrigeration compressor industry has huge development space and good prospects The development of China's cold chain logistics is lagging, resulting in a cold chain circulation rate of agricultural products of only 5-20%, while the agricultural ﰸ2䀀
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08/04/2020

HVAC people, have you made these mistakes?

As a HVAC person, constantly summing up experience and accumulating knowledge in the work can be said to be a necessary quality, but as the saying goes, failure is the mother of success.

03/03/2021

The key detection items of servo motor and common problems in servo motor detection

1).Servo motor detection -- cogging torque: Cogging torque is an inherent phenomenon of permanent magnet motor, which can make the motor torque fluctuate and produce vibration and noise. We measure the change of motor torque in a rotation cycle on a special test bench and analyze the distribution of cogging torque.

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.

08/21/2020

How to choose the right air conditioner People from the Consumer Protection Committee give advice

As the weather gets hotter, air conditioners are beginning to sell well. Faced with the various types and multi-functional air conditioners on the market, how should I choose a satisfactory and suitable air conditioner?

08/17/2020

The function and setting of the oil trap in the refrigeration system

In the Fuli Subaru refrigeration and air-conditioning system, when the main engine is higher than the end (evaporator), there is a riser pipe between the evaporator and the main suction pipe,

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/01/2025

What is Refrigeration Cycle? The Refrigeration Cycle Explained

The refrigeration cycle is a cyclic process in which heat is transferred from a low-temperature object (or environment) to a high-temperature object (or environment) through a refrigerant, thereby cooling the object to a temperature lower than the environment and maintaining this low temperature.

08/18/2020

Common problems and solutions of piston refrigeration compressors

Piston compressors are inconvenient to maintain, but piston compressors have an irreplaceable role in many fields. Therefore, it is very important for many companies to ensure its smooth operation.