Points to note when maintaining and repairing evaporators

Maintenance and repair of evaporator (1) Maintenance of evaporator 1) Leak detection of evaporator is often carried out. Leakage is a common fault phenomenon of evaporators, and attention should be paid to frequent leak detection during use. When the ammonia evaporator leaks, there is a pungent odor, and there is no frost at the leakage point. The leakage can be checked with phenolphthalein test strips, because ammonia is alkaline and turns red in case of phenolphthalein test strips. When you look at it, it is usually the leakage point in a place where there is no frost in the evaporator, and you can also use soapy water to find the leakage at the leakage. Freon evaporator leaks can be checked using halogen lamps and halogen leak detectors, as well as soapy water to find leaks.　　When inspecting, you can first look at the steaming with your eyes

2023-01-03 10:35

How to recover the refrigerant from an industrial chiller to a reservoir or cylinder?

First, how to recycle the refrigerant of the industrial chiller to the reservoir? The specific operation steps to recover the refrigerant of the industrial chiller to the reservoir are: 1. Open all the valves of the industrial chiller cooling system, and twist the suction shut-off valve counterclockwise to make it fully open, and then use the multi-purpose joint to connect the repair valve with the suction shut-off valve. 2. Close the repair valve and adjust the suction shut-off valve to the three-way position; 3. Rotate clockwise to close the outlet shut-off valve of the reservoir; 4. Start the refrigeration compressor of the industrial chiller, and the main force in the evaporator is sucked into the condenser and reservoir.　　Second, how to industrial cold water

2023-01-03 10:35

How to recycle the refrigerant of an industrial chiller to a reservoir?

In the process of repair or maintenance, industrial chillers need to recover the refrigerant before facilitating subsequent maintenance work. There are two common refrigerant recovery methods in industrial chillers: one is to recycle the refrigerant to the reservoir, and the other is to recycle to the refrigerant cylinder. First, how to recycle the refrigerant of the industrial chiller to the reservoir? Note: Our industrial chillers are installed with high/low pressure controllers, when recovering refrigerant, the contacts of the high/low pressure controller should be kept normally closed, so as to avoid shutdown due to pressure reasons when recovering refrigerant.　　The production of industrial chillers

2023-01-03 10:35

What are the functions of the water purifier filter element? What impurities can be filtered?

How useful is the filter element of the water purifier? Friends who have bought water purifiers know that when buying, merchants will remind us to replace the filter element regularly and in time. Because after the filter element is used for a certain period of time, it will continue to consume its life until the end of its life because it filters too many impurities. So what is the function of the filter element of the water purifier? What can it filter?　What are the functions of the water purifier filter element? What impurities can be filtered? Let's introduce the role of the reverse osmosis water purifier filter element with a relatively high utilization rate. Generally speaking, the filter element of the reverse osmosis water purifier has 5 stages, let's understand them one by one.　

2023-01-03 10:35

7 practical heat exchanger technology quizzes

1. How does the heat exchanger transfer heat? A: In the most common interwall heat exchanger, there are mainly two heat transfer methods: conduction and convection. The hot fluid first transfers heat to one side of the pipe wall by convection to heat supply, and then transfers heat from one side of the tube wall to the other side by conduction, and finally transfers heat to the cold fluid by convection heat on the other side of the pipe wall, thus completing the heat transfer process of the heat exchanger. 2. What is the effect of the flow rate of the medium on the heat transfer effect? A: The greater the flow rate of the medium in the heat exchanger, the greater the heat transfer coefficient. Therefore, increasing the flow rate of the medium in the heat exchanger can greatly improve the heat transfer effect

2023-01-03 10:35

How the evaporator works

Working principle of evaporator: the heating chamber provides the heat required for evaporation to the liquid, which promotes the boiling and vaporization of the liquid; The evaporation chamber completely separates the gas-liquid phases. The vapor generated in the heating chamber carries a large amount of liquid foam, and after reaching the evaporation chamber in a large space, these liquids can be separated from the vapor by the action of self-agglomeration or defoamer. Usually the defoamer is located at the top of the evaporation chamber. According to the movement of the solution in the evaporator, there are are: Circulation type. The boiling solution passes through the heating surface many times in the heating chamber, such as the central circulation tube type, the hanging basket type, the external heating type, the Levinian type and the forced circulation type.　　One-way type. The boiling solution is in a heating chamber

2023-01-03 10:35