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Semiconductor refrigeration temperature control system selection instructions
The choice of semiconductor refrigeration temperature control system should be based on the cold load and what to use for consideration. For refrigeration systems with long operating conditions with low load operation, it is suitable to select multi-head piston compressor unit or screw compressor unit for easy conditioning and energy saving. This is the dual-head semiconductor refrigeration temperature control system that we often say. With the change of load, the semiconductor refrigeration ...
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The importance of car cooling water cycle maintenance
Even if the overall running quality of the car cooling water circulation machine is high, if there is no maintenance and maintenance in the specified time, the car cooling water circulation machine may have different degrees of failure. Especially for many automotive cooling water circulation machines, after a long-term operation, a large scale problem will occur. If the scale cannot be effectively cleaned, after a long period of accumulation, the scale of the scale is continuously expanded, ...
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Causes of reduced heat transfer effect of vertical ultra-low temperature refrigerators
If the outer frost layer of the vertical ultra-low temperature refrigerator is too thick or excessively dusty, it may cause the external temperature of the equipment to be mostly lower than 0, resulting in low heat transfer efficiency of the evaporator. Because the vertical ultra-low temperature refrigerator has relatively high humidity, the moisture in the air is easy to frost on the surface of the evaporator, and even freezes, which affects the heat transfer effect of the evaporator. In ord...
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How to judge the quality of the pipeline for electroplating waste gas treatment?
Generally, when purchasing the electroplating waste gas treatment equipment, it is necessary to observe the appearance of the copper tube to judge. The first is to look at the color of the copper tube. According to the type of copper tube purchased, different colors are judged, such as a copper tube, and the red color of the general color is reddish. It is good copper. Brass tubes, generally lighter in color, are better. There is also a layer of zinc on the copper, some galvanized, and the co...
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How to solve the frosting of the low temperature circulation device?
The failure of the low temperature circulation device frosting is mainly because the compressor return air temperature is too low, which may be that the throttle valve liquid refrigerant supply is in a normal state in the low temperature circulation device, but the low temperature circulation device evaporator cannot normally absorb the heat supply refrigerant expansion; It may also be because the evaporator is in a normal working state but the refrigerant supply throttle valve is too large, ...
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Motor test chiller compressor causes wear
Motor testing chiller oil quality may be one of the main reasons affecting crankshaft wear. If the engine oil is used in the chiller refrigeration system, the engine oil that does not meet the requirements and is of poor quality may cause crankshaft wear. High-speed multi-cylinder compressors have high requirements for the quality and lubrication performance of the motor test chiller oil due to high speed, high load and high exhaust gas temperature. Motor test chiller refrigeration compressor...
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How to choose the lubricant for the injection molding machine?
The injection molding machine cooling system lubricating oil needs to pay attention to the type of compressor when selecting. The compressor has three types: piston type, screw type and centrifugal type. The first two kinds of lubricating oil are in direct contact with the compressed refrigerant, and the lubricating oil should be considered. The problem of interaction between the refrigerant and the refrigerant. The lubricating oil used in the centrifugal injection molding machine cooling sys...
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High temperature fault treatment of temperature shock test equipment
The whole function of Wuxi Guanya LNEYA thermal shock test chamber is computer controlled. It is a self-developed software with a good operation interface, which makes the operation and monitoring of the user simpler and more intuitive. The maintenance function can keep the running program in your operation. In the current state, the value of this block can be temporarily changed. The time parameter can be set on the screen to make the cooling, heating, and blue transfer switch automatically,...
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Linear rapid temperature change tester emptying and filling instructions
Before starting the linear rapid temperature change tester, check whether the relevant protective measures are in place, such as fire protection, protection, leak prevention and other tools. Check whether the power supply is in place according to the power supply installation and equipment grounding, whether the phase sequence is correct, and whether the grounding is good. Then power on the equipment, and then check whether the relevant valve is open. Otherwise, the circulating pump will be b...
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Start-up work for new energy thermal management
In the pipeline selection of new energy thermal management, if the use of improper/damaged hoses and/or hose joints will result in injury, the new energy thermal management is limited by the temperature, caliber, installation method, etc. Tube, metal insulation hose temperature range -60 ~ 250 ° C; pressure ≤ 2.5 bar. When the new energy thermal management configures the metal insulation hose and other pipelines carefully, when referring to its pressure and overpressure capability, caliber an...
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