The principles for adjusting the return water pressure in a circulating water system for a set of equipment
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If a set of equipment uses a circulating water system for cooling, what are the principles for adjusting the inlet and outlet water pressure in the equipment area? What were the determining factors for the water pressure difference last time?
The principle for adjusting the return water pressure in the plant area is mainly to ensure an adequate water flow rate, as well as to maintain the efficient and stable operation of the system. Specifically, the pressure should be adjusted so that water can flow effectively through the heat exchange device and carry away heat effectively. The factors determining the water pressure difference last time included: 1. The flow velocity and volume of water in the system ； 2. Pipeline length and diameter ； 3. Frictional losses in the pipeline ； 4. Types and efficiency of heat exchangers ； 5. Water temperature difference, that is, the difference between the inlet temperature and the outlet temperature of the cooling water. During adjustment, these factors must be considered together to ensure system balance and the safe operation of the equipment. .
When a set of equipment uses a circulating water system for cooling, the principle for adjusting the upstream water pressure is primarily to ensure stable water flow within the system and adequate heat exchange efficiency. The adjustment principles include: 1. Ensuring that the pressure output by the water pump meets the flow and pressure requirements of various heat exchange devices in the system. 2. Adjust the return water pressure to minimize pressure loss in the plant area and improve system efficiency. 3. Monitor and adjust the pressure difference to ensure an appropriate flow rate, which enables effective heat removal while preventing pipe wear or noise. The factors determining the water pressure difference last time were: 1. The head and flow rate of the pump. 2. The resistance caused by the length and diameter of the pipes within the system, as well as the pipe layout (such as elbows, valves, etc.). 3. The type, quantity, and arrangement of the heat exchangers. 4. Total thermal load of the system operation. 5. Temperature difference setting, namely the set values for the supply water temperature and return water temperature. .