How many pumps do closed cooling towers need?-Wuxi Ark Fluid Technology Co., Ltd

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Pursuing perfection is the tenet we have always adhered to in the whole process from selection of raw materials to R&D and manufacture of a series of products.
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Pursuing perfection is the tenet we have always adhered to in the whole process from selection of raw materials to R&D and manufacture of a series of products.
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How many pumps do closed cooling towers need?

Release time：

2022-11-30

How many pumps do closed cooling towers need? It is impossible to immediately respond to this problem. In the case of the overall design scheme of closed cooling tower, in the refrigeration plan presented by the customer, water pumps are generally provided according to the specific situation. The total number of water pumps is related to a series of factors such as the refrigeration temperature, the refrigeration water flow, and the circulation system status. In the case of the design scheme, the number of water pumps cannot be too high, otherwise it will be a waste of electromagnetic energy. If it is too low, the regulations for cooling circulating water cannot be met, and the final refrigeration regulations cannot consider customer satisfaction. In addition, attention should be paid to environmental protection and energy conservation.
How to make the closed cooling tower water pump more environmentally friendly and energy-saving?
First: The allocation of closed cooling tower water pump needs to be effective. It can not be used in a car. When the system software does not need large flow and high water pump head, it can be equipped a little smaller. When the back-end development load changes a lot, it can use the principle of frequency converter to determine the total flow required based on heat exchange consumption, which can be environmentally friendly and energy-saving.
Second: effectively design the pipeline, reduce the additional pipeline friction resistance, and remove the filter device on time.
Third: The water pump of the self spraying closed cooling tower can complete the automatic control system according to the working temperature, and can also achieve certain practical effects of environmental protection and energy conservation, aiming at the primary circulating water system.
Fourth: When the actual heat transfer effect of the back-end development is not good, it should be properly handled to ensure that the low total flow supply is considered under all normal import and export trade temperatures, without increasing the total flow to ensure.
Fifth: Regularly maintain and distinguish the main operating parameters of the water pump of the closed cooling tower to prevent the centrifugal impeller or turbine casing from being damaged and causing flow back and additional damage.
How to maintain the water pump of closed cooling tower
The closed cooling tower water pump refers to the self spraying pump of the closed cooling tower. The closed cooling tower water spraying pump of Lingdian Refrigeration Equipment Co., Ltd. in Dongguan City, Guangdong Province is sealed by high-quality mechanical equipment that will not be converted into a limited water pump, which has no leakage and has a long life. It uses a special outdoor motor and a unique bearing manufacturer to ensure the long-term reliable operation of the water pump, and has the advantages of small output power, large flow, low noise, etc. Next, we will introduce in detail how to maintain the water pump in the closed cooling tower.
1. In addition to strictly following the installation manual, the application of water pump should also pay attention to two points:
First, do not rely solely on "work experience". For example, when the bottom valve of the water pump seeps, some operators are convenient. Before each startup, fill some sandy soil into the inlet branch pipe, and then fill water to flush the soil through the bottom valve, so that the bottom valve does not seep. This method looks simple, but it is not enough. When the pump starts to work, the gravelly soil in the bottom valve will enter the pump with water, damaging the centrifugal impeller, pump body and shaft, which will seriously endanger the service life. The proper way should be to repair the bottom valve. If it is really impossible to repair, replace it.
Second, common faults should be eliminated immediately. Do not let the generator set work "with faults". For example, if it is found that the filling material of the water pump shaft is seriously damaged, the filling material should be lifted immediately, otherwise it will cause steam leakage of the filling material of the water pump shaft. The steam leakage of the pump shaft packing material not only causes excessive energy consumption of the generator set, but also causes cavitation, which accelerates the destruction of the centrifugal impeller and immediately endangers the service life of the pump. For another example, if the water pump is found to be strongly vibrating, it should be shut down for inspection first, otherwise it is likely to cause safety production accidents if the water pump is bent and deformed.
2. After the closed cooling tower water pump is used for a period of time, the following maintenance work should be done well.
(1) Drain the remaining water in the water pump and pipeline.
(2) If the disassembly is convenient, the water pump and pipe can be removed and cleaned.
(3) Check the rolling bearing. If the inner and outer clothing is damaged, loose, the steel ball is damaged or the surface has black spots, it must be replaced. Clean the rolling bearing with gasoline or gasoline and then apply salt free butter for storage.
（4） Check whether there are cracks or small round holes on the centrifugal impeller, whether the nut is loose, whether it is fixed on the centrifugal impeller, and whether it should be repaired or replaced. Check the clearance at the antifriction ring of centrifugal impeller. If it exceeds the standard value, repair or replace it.
(5) If the water pump and pipeline are not disassembled, use the rear cover plate to seal the inlet and outlet to prevent dirt from entering.
(6) If the rubber cloth of the power transmission system is not needed, it must be cleaned with warm water and stored in a place without direct solar radiation or where there is oil stain, corrosion and smoke. In any case, it is not necessary to make the adhesive tape stained with raw oil chemicals such as automobile engine oil, diesel engine or automobile gasoline, and it is not necessary to coat the adhesive tape with rosin and other viscous chemicals. Before applying the adhesive tape, the white frost on the surface of the adhesive tape must be eliminated.
(7) Clean all screws and anchor bolts with a steel brush and coat them with automobile oil or soak them in the diesel engine for storage.
(8) Clean the normally closed cooling tower.

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