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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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High-pressure failure of stainless steel cryogenic refrigerator
At the high speed of the stainless steel cryogenic refrigerator compressor, the temperature rises and the compressor generates high air pressure, which causes the high voltage protection relay to operate. The discharge pressure of the compressor reflects the condensing pressure. The normal value should be 1.3~1. 7MPa, and the protection value of the Wuxi Guanya stainless steel cryogenic refrigerator is set to 2.1MPa. Then, if it is a long-term work, the compressor pressure is too high, which ...
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General high and low temperature integrated machine valve repair detailed description
The conventional high and low temperature integrated machine valve replaces the packing, and the main function of the packing is to prevent the working medium from leaking along the axial direction of the valve stem. In case of minor leakage, the packing gland can be tightened. If the leak cannot be eliminated, the packing should be replaced. When replacing, the valve stem must be screwed out to the end. Use the filler needle to pull out the old packing, then screw the prepared new packing in...
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Description of refrigeration principle in semiconductor wafer temperature control
In the operation of the semiconductor wafer temperature control refrigeration system, a state transition of a certain working fluid is used, and the necessary heat Q0 is extracted from the heat source of a lower temperature, and the heat Qk is sent to the heat source of the tropical heat through a storage process of the consumption power W. In this process, Qk = Q0 + W is taken from the conservation of energy. In order to achieve temperature control of semiconductor wafer temperature migratio...
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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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Fully closed cycle high viscosity fluid refrigeration heating flow control system
Application:1. The tested object is connected to a test platform adapter.2. The internal parts of the parts are cooled, heated, flow controlled, and pressure controlled by various lubricating oils, hydraulic oils, aviation fuel, fuel oil, and coolant.3. The test component needs to go through a specific temperature profile and record the change in temperature.4. When conducting the tolerance test, perform the thermal shock test, and the rapid temperature drop control usually takes place in...
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Small environmental test chamber compressor should pay attention after maintenance
In the centrifugal small-scale environmental test chamber, the suction recovery device is generally an independent system, and if necessary, the pipeline connected to the condenser and the evaporator can be closed for separate maintenance. After replacing the compressor in the small environmental test chamber, the pumping recovery device generally uses the automatic mode to open, stop and work during the operation of the unit. Therefore, the oil level of the oil separator of the piston compre...
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High temperature test equipment related troubleshooting
The high temperature test equipment is mostly caused by water shortage in the water circulation. This way, the purified water is replenished to the water tank until the water level meter on the lower right side of the water tank reaches about 80% of the entire scale. Every equipment will be fully commissioned before shipment. During the commissioning process, we have done ample tutorials for each internal system. If the equipment is in transit, due to up and down vibration, the float and the ...
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Cryogenic storage tank (explosion proof) chemical cryogenic storage
Product Overview:Microcomputer control, multiple security protection, and more reliable operation; Single-compressor automatic cascade supercooling refrigeration technology; compressors use Secop and France Taikang brandContactors and circuit breakers are all based on the Schneider brand; Display high and low pressure of refrigeration system; user-friendly design, flexible and convenient; With self-diagnosis function, freezer overload protection, high-pressure pressure switch, overload rela...
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Ultra-high temperature material cold and hot impact box refrigeration oil
The ultra-high temperature material impact test chamber test device has too much frozen oil in the evaporator, which can also cause insufficient cooling and cause slow cooling. The oil stored in the evaporator of the ultra-high temperature material impact test chamber test device can be directly judged by the hot and cold boundary line of the oil surface. If the oil level is too high, it should be released in time. Some Freon and refrigerating machine oil dissolve each other. Therefore, when ...
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