The function of the air conditioning heat pump buffer water tankThe buffer water tank is an important auxiliary device in the air conditioning heat pump system. Its main functions are reflected in stabilizing system operation, improving energy efficiency, protecting equipment and optimizing user experience, etc. The following is the specific function and principle analysis:
If the buffer water tank is not used, it will cause the main unit to start and stop frequently. Due to the limited circulating water volume in the loop, the main unit will reach the designed temperature in a very short time and stop working. Then, within a very short period of time, the water temperature will reach the start-up conditions of the main unit, and the main unit will start again. Such frequent start-ups will greatly reduce the service life of the main unit and waste electricity. Not only is a buffer water tank needed, but also the capacity of the water tank is preferably larger.
2. Highly efficient defrosting with a short defrosting time. When used in the severe winter, especially between -3℃ and 5℃, the main unit will frost over obviously. The impact of defrosting on the indoor temperature is a very troublesome problem. Because the unit needs to consume the heat in the pipeline when cooling in reverse, if the water volume in the water system is small, the defrosting time will increase, and it will also cause the water temperature in the pipeline to be lower, resulting in poor defrosting effect. If a buffer water tank is installed, during the defrosting process, due to the certain temperature inside the water tank, defrosting can be completed in a short time, and the heat consumption is also small. This avoids the fluctuation of indoor temperature caused by the defrosting of the main unit, which plays a significant role in stabilizing the terminal effect of the system.
3. It can ensure the smooth flow of water in the system, fully complete automatic exhaust, and avoid unit malfunctions. We know that when the water tank is placed in the return water system, the circulating water enters from the top of the water tank and exits from the bottom. As a result, the gas in the water will accumulate in the upper space of the water tank. The pressure in the closed system will automatically force the gas to be discharged from the upper exhaust valve. In this way, the bottom outlet of the buffer water tank is connected to the suction port of the water tank. Since there is no gas, it can not only protect the impeller of the water pump, Moreover, it can ensure that the system is free of gas, guaranteeing the normal operation of the main unit. If there is no buffer water tank, the presence of gas may sometimes cause the flow switch of the main unit to malfunction and trigger high-pressure alarms, etc.
4. It can make the system's sewage discharge more thorough and prevent system blockage. There are a large amount of impurities in our system. These impurities will gradually accumulate at the bottom of the buffer water tank through circulation. When passing through the Y-type filter, the water quality of the water pump will improve, thereby reducing the cleaning of the Y-type filter.
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