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What else is needed in the installation and use of the condenser

 Last Update: 2021-12-14
 Source: Internet
 Author: User

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【Hot attention of Chemical Machinery Equipment Network】Cooler isA type of heat exchange equipment used to cool fluids.
Water or air is usually used as a coolant to remove heat.
Mainly can be divided into tube cooler, plate cooler and air-cooled cooler.
The cooler is a heat exchange device commonly used in metallurgy, chemical industry, energy, transportation, light industry, food and other industrial sectors.

Hot attention of Chemical Machinery Equipment NetworkChemical machinery and equipmentCoolerHeat exchange equipment

It is suitable for different working conditions such as cooler, condensation, heating, evaporation, and waste heat recovery.
Therefore, among many types of heat exchangers, coolers and tube heat exchangers still occupy an important position.

Notes on the use of condensers:

1.
Before using the equipment, check whether the flange screws are loose and whether the sealing gaskets are in good condition.

2.
Before use, press 1.
25 times the operating pressure to carry out a hydraulic test, and keep the pressure for about 20 minutes.

　　3.
The equipment should be cleaned with clean water for about 20 minutes before use.

　　4.
There should be an air release valve in the piping system.
After opening, the air in the equipment should be released to prevent air from staying in the equipment and reduce the heat transfer effect.

　　5.
The installation of hot and cold meson inlet and outlet pipes should be connected in strict accordance with the directions specified on the factory label.

　　6.
According to the pressure gauge in the direction of the condenser outlet, make sure not to overpressure.

　　1) When the refrigeration system is running, all the other valves of the condenser should be opened except for the oil drain valve and the air valve closed.

　　2) The condensing pressure of the water-cooled condenser should not exceed 1.
5MPa, otherwise the cause should be found out and eliminated in time.
The water supply to the condenser can be stopped after all the compressors have been stopped for 15 minutes.
If you stop working for a long time in winter, drain the water to avoid damage to the equipment.

　　3) Check the temperature and volume of the cooling water frequently.
The temperature difference between the inlet and outlet of the cooling water is about 2-4 minutes.
Generally, the condensing temperature is 3-5°C higher than the outlet temperature of the cooling water.

　　4) The dirt on the tube wall of the condenser should be cleaned regularly, and the thickness of the dirt should not exceed 1mm, usually once a year.

　　5) Check whether there is ammonia in the effluent of the condenser every month.
If there is ammonia in the water, it will turn red when it meets phenolphthalein.
If the condenser for fluorine leaks, oil will appear.
The leakage of the condenser should be discovered in time for timely maintenance.

　　6) The water separator of the vertical shell and tube condenser should be placed appropriately, the water should be evenly distributed along the inner wall of the pipe, and the amount of water should be sufficient.

　　7) The cooling water of the horizontal shell-and-tube condenser should burst upwards, and the cooling water should not be interrupted during operation.

　　8) When the evaporative condenser is running, the exhaust fan and circulating water pump should be started first, and then the air valve and the liquid valve should be opened.
The water spray nozzle should be unblocked, the spray water should be even, and the scale should be cleaned once a year.

　　9) Air-cooled condensers should often use compressed air to clean the dust accumulated on the tube wall and radiating fins to improve heat transfer efficiency.

　　10) When multiple condensers are used in combination, the number of condensers, the amount of cooling water required, and the number of pumps running should be determined.
The compressor load, cooling water temperature and other parameters should be used as the basis to achieve the economical and economical performance of the refrigeration system.
Reasonable and safe operation.

　　Original title: What else is needed in the installation and use of the condenser

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