How to reduce the exhaust temperature of high-precision constant temperature and humidity air conditioner compressor?
1. Reduce the intake temperature
The intake temperature of each level of high-precision constant temperature and humidity air conditioner is related to the imperfect cooling of the intercooler. Therefore, we should try our best to ensure the cooling effect of the intercooler, or adopt some special cooling measures to reduce the intake temperature and strive to reduce the exhaust temperature.
2. The compression process index will also affect the exhaust temperature
In actual operation, the compression process index of high-precision constant temperature and humidity air conditioner is mainly related to the cooling condition of the cylinder. The better the cooling effect, the smaller the index and the lower the exhaust temperature. Therefore, the exhaust temperature can be reduced by strengthening the cooling of the cylinder.
3. Intake in the cylinder
In the maintenance of high-precision constant temperature and humidity air conditioner compressor, attention should be paid to the installation of valves and the selection of springs. Under the premise of ensuring the normal operation of the valve, the intake and exhaust pressure losses should be minimized to achieve the purpose of reducing the exhaust temperature.
4. For multi-stage compressors, if you want to adjust or lower the exhaust temperature of a certain stage, the situation is often not single. If you find that the exhaust temperature of a certain stage is high, if you use the method of adjusting the clearance volume to appropriately reduce the pressure ratio of this stage, although this can reduce the exhaust temperature of this stage, it will increase the pressure ratio of the previous stage and the exhaust temperature will rise; if you try to reduce the exhaust temperature by strengthening the cooling of the cylinder of this stage and reducing the compression process index, it will also reduce the pressure ratio of this stage, increase the pressure ratio of the next stage, and increase the exhaust temperature of the next stage; when the cooling effect of the intercooler before the stage is strengthened, although the exhaust temperature can be reduced by lowering the intake temperature, the intake pressure of this stage is also reduced accordingly, so that the pressure ratio of this stage increases, so the effect of reducing the exhaust temperature is not obvious. Therefore, a comprehensive method needs to be adopted. While strengthening the cooling before the stage, the clearance volume of this stage is appropriately increased to keep the pressure ratio of this stage unchanged. This can not only effectively reduce the exhaust temperature of this stage, but also does not affect the exhaust temperature of the previous and subsequent stages. 5. Internal leakage is one of the most important reasons for high or even excessive exhaust temperature
Practice shows that internal leakage is one of the most important reasons for high or even excessive exhaust temperature. Especially during the expansion and suction process of a certain stage of the compressor, if the exhaust valve of this stage is not closed tightly, the high-temperature and high-pressure gas in the exhaust pipe that has not been cooled in time will flow back (internal leakage) to the cylinder, which will cause the exhaust temperature of this stage to rise sharply. Therefore, special attention should be paid to prevent such situations from happening.