Generally, it can be judged whether the flow rate of the throttle valve refrigerant is appropriate by observing the evaporation pressure, the evaporation temperature, and the frosting condition of the suction pipe. Generally, it can be judged whether the flow rate of the throttle valve refrigerant is appropriate by observing the evaporation pressure, the evaporation temperature, and the frosting condition of the suction pipe. Blockage of the throttle valve is an important factor affecting the flow rate of the refrigerant. The main cause of the blockage of the throttle valve is ice blockage and dirty blockage.
Peristaltic Tube Pump Characteristic :
1 Clean and pollution-free: fluid only passes through and touches the Peristaltic Pump hose.
The technician believes that the ice blockage in the high and low temperature test chamber compressor is due to the poor drying effect of the dryer. The refrigerant contains moisture. When flowing through the throttle valve, the temperature drops below 0 °C, and the moisture in the refrigerant forms ice. The throttle valve hole is blocked; the dirty plugging is due to the accumulation of more dirt on the filter inlet of the throttle valve, and the refrigerant flows poorly and forms a blockage.
Insufficient refrigerant amount in the system, insufficient cooling capacity, and insufficient refrigerant circulation in the low-temperature test chamber. There are two main reasons for the refrigerant charge. First, the refrigerant charge is insufficient. In this case, only a sufficient amount of refrigerant can be added. . Another reason is that the system refrigerant leaks more. In case of such a situation, the leak point should be found first, and the connection points of each pipe and valve should be checked. After the leak is repaired, a sufficient amount of refrigerant is charged.
The compressor in the high and low temperature test chamber has low efficiency, and the cooling capacity can not meet the load requirement in the test box. Due to the long-term operation of the compressor, the cylinder liner and the piston ring are seriously worn, the matching clearance is increased, and the sealing performance will be correspondingly reduced. The gas transmission coefficient will also decrease and the cooling capacity will decrease. When the cooling capacity is less than the heat load of the warehouse, it will cause the warehouse temperature to drop slowly. The refrigeration capacity of the compressor can be roughly judged by observing the suction and exhaust pressure of the compressor. If the refrigeration capacity of the compressor drops, the common method is to replace the cylinder liner and piston ring of the compressor. If it still does not work after replacement, other factors should be considered, and even disassemble and repair should be taken to eliminate the fault factor. Whether the refrigerant affects the temperature in the high and low temperature test chamber, the engineer will answer your questions http://View_news-2492.html
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3. Low shear force: It is an ideal tool for conveying shear-sensitive and corrosive fluids.
4. Corrosion resistance: it can transport various fluids, such as organic solvents and corrosive liquids.
5. Idling and dry operation: air or gas-liquid-solid three-phase mixed transportation can also be transported.
6. Possess self-priming ability: self-priming, no need to fill the pump, no need to empty.
7. It has the function of a shut-off valve, does not siphon, has no seals, and has the functions of a shut-off valve and a check valve.
8. Two-way conveying function: reverse pumping and back-suction functions can be realized by changing the direction of the pump runner.
9. Simple maintenance: only need to replace the peristaltic pump hose, no valve and seal replacement.
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Baoding Chuangrui Precision Pump Co., Ltd. , https://www.crprecisionpumps.com