What is the structure and working process of the high and low temperature heat exchanger?
The solution heat exchanger in the lithium bromide absorption refrigeration compressor unit is a shell and tube heat exchanger. The basic structure is shown in Figure 5-21. It consists of a shell, a heat transfer tube and a solution flow pipeline. The head and the heat transfer tube are expanded and connected to the tube sheet by threaded tubes, and the solution heat exchanger is generally installed on the lower part of the unit or on the lower side of the back.
Figure Shell and Tube Heat Exchanger
1. Flange 2. Inlet and outlet pipes 3. Shell 4. Tubes 5. Head 6. Inlet and outlet pipes
When working, the low-temperature dilute solution from the absorber flows in the tube in the exchanger, and the high-temperature concentrated solution from the generator flows in the shell of the exchanger. After heat exchange, the temperature of the dilute solution increases, so that the The temperature of the concentrated solution is lowered, thereby increasing the cooling coefficient of the unit.
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Mainly include: second-hand refrigeration units, lithium bromide solution, various valves, heat exchangers, canned pumps, vacuum pumps and other related accessories.
The main brands include: Sanyo, Shuangliang, Ebara, LG, Carrier, etc.
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The company’s main business scope includes: central air-conditioning maintenance, cleaning and technical services; cooling tower and fan coil cleaning and maintenance services; custom processing of lithium bromide solution; sales of lithium bromide solution special impurity separators; central air-conditioning host and various zero Sales of accessories; installation and sales of central air conditioning systems, etc.
Widely used in major air-conditioning systems and process refrigeration cold and heat sources; in steel, textile, chemical, electronics, pharmaceutical, food and other industrial and mining enterprises, as well as hotels, theaters, hospitals, and large commercial buildings , Central heating stations and other occasions are widely used.
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