How to deal with the failure of the refrigerator to start and high-pressure failure

How to deal with the failure of the refrigerator to start and high-pressure failure

Nowadays, the application range of refrigerators is relatively wide. Although domestic refrigerators have high performance, certain failures will occur during use. Let me introduce how to deal with the refrigerating machine cannot start and high pressure failure.

　　 1. The reason why the refrigerator cannot be started is mainly because the pressure at the inlet of the refrigerator is small during the operation of the system, and the basic conditions of operation cannot be met, and the problem of failure to start will occur.

2. According to the manual of the domestic refrigerator configuration, it can be understood that it is basically caused by the idling of the water pump. As long as the air in the various systems of the refrigerator is released, the suitable operating environment can be met and the refrigerator can be started. purpose.

　　 3. The problem of pressure. The editor of okmarts.com reminds freezer users that they need to complete the maintenance of the freezer according to actual needs after different degrees of difficulty in starting.

　　4. To ensure the smooth operation of the freezer, it is necessary to effectively control the air inlet and outlet of the water pump during the use of the freezer. With the continuous removal of air, the failure to start is solved perfectly.

　　 The editor of okmarts.com will tell you how to deal with the high pressure failure of the chiller.

　　 Due to insufficient cooling water flow rate, the rated water flow rate cannot be reached. The main performance is that the pressure difference between the inlet and outlet water of the unit becomes smaller and the temperature difference becomes larger. The reason for the insufficient water flow is the lack of water in the system or the presence of air. The solution is to install an exhaust valve at the height of the pipeline to exhaust; the pipeline filter is blocked or the selection is too fine, and the water permeability is limited. You should choose a suitable filter and Clean the filter regularly; the water pump is small and does not match the system. Overcharged refrigerant. This situation generally occurs after maintenance, and it is manifested as high suction and exhaust pressure and balance pressure, and high compressor operating current. It should be vented according to the suction and discharge pressure, balance pressure and operating current under rated conditions until it is normal, so it is still necessary to check regularly.

　　 The condenser is scaled or blocked. Condensate water is generally tap water, it is easy to scale when the temperature is above 30℃, and because the cooling tower is open, it is directly exposed to the air, dust and foreign matter can easily enter the cooling water system, causing the condenser to become dirty and the heat exchange area is small , The efficiency is low, and it also affects the water flow. The performance is that the pressure difference and temperature difference between the inlet and outlet water of the unit become larger, and the upper and lower temperatures of the condenser are very high when the condenser is touched by hand, and the condenser outlet copper pipe is hot. The unit should be backwashed regularly, and chemical cleaning and descaling should be carried out if necessary. The cooling water temperature is too high and the condensation effect is poor. The rated working condition of the cooling water required by the chiller is 30-35℃. High water temperature and poor heat dissipation will inevitably lead to high condensation pressure. This phenomenon often occurs in high temperature seasons. The reason for the high water temperature may be: cooling tower failure, such as the fan is not turned on or even reversed, the water distributor does not turn, it is manifested as the cooling water temperature is very high, and rapid rise; the outside temperature is high, the water path is short, and the amount of water that can be circulated In this case, the temperature of the cooling water is generally maintained at a relatively high level, which can be solved by increasing the storage tank.

The chiller is completely different from the general water cooling equipment. Because the chiller has a completely independent refrigeration system, it will never be affected by the temperature and the environment. The water temperature is adjusted and controlled within the range of 5 to 30 ℃, which can achieve high precision and high The purpose of efficiency control temperature. The chiller is equipped with an independent water circulation system, and the water in the chiller is recycled, which can save a lot of water. Generally, water-cooling methods cannot achieve the purpose of high-precision and high-efficiency temperature control, because natural water and water tower heat dissipation are inevitably affected by natural temperature, and the water temperature in winter is high in summer.