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Anti-cavitation device for high temperature feedwater pump

Boiler automatic high-temperature feedwater pump anti-cavitation device adopts injection pressurization technology, double-suction micro-cooling technology and principles to increase the pump inlet pressure, solve the cavitation problem of high-temperature feedwater pumps when pumping high-temperature saturated water, and ensure that high-temperature water pumps are within their permitted Safe and long-term operation at operating temperature. The boiler set of automatic high-temperature feedwater pump anti-cavitation device is equipped with a self-operated pressure regulating valve, a manual regulating valve and a pressure gauge to regulate and monitor the pressure at the inlet and outlet of the pump.


The anti-cavitation principle of the high-temperature feedwater pump anti-cavitation device is realized by specially designing an anti-cavitation system for ordinary hot water pumps. When ordinary hot water pumps pump hot water above 70 ° C, a certain positive pressure head must be added to the pump inlet. In order to ensure that the saturated water delivered by the pump under the suction pressure loss does not produce flash evaporation, that is, the pump does not produce cavitation. Just as the difference between the boiler feed water pump and the deaerator must be greater than 6 meters during thermal deaeration, the centrifugal pump needs an additional head of more than 6 meters when pumping 104 ° C deaerator water. Of course, the higher the temperature, the larger the additional head required. The temperature of the condensate water discharged by steam equipment is generally greater than 100 ° C. It is difficult to provide the additional head required by the centrifugal pump under natural conditions based on natural conditions. By designing a special anti-cavitation system for the feedwater pump, according to different recovered water temperature conditions, Designing different injection pressure boosting ratios can ensure that the feedwater pump does not produce cavitation even when it transmits high-temperature condensate above 100 ° C, which achieves the purpose of condensate recovery .

Physical map of water pump anti-cavitation device

Physical drawing of boiler high-temperature feedwater pump anti-cavitation device

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【 product list】

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Hydrophobic automatic pressure device
Flash tank
Double barrel siphon type condensate water recovery machine
Steam recovery machine
Condensate recovery auxiliary equipment
Low-level thermal deaerator series
Low-level thermal deaerator
Headless deaerator
Exhaust steam recovery device
Condensate fine treatment series
Condensate removal of iron
Condensate deconductivity
Boiler waste heat recovery series
Boiler waste heat recovery device
Boiler flue gas waste heat recovery device
Boiler continuous blowdown expansion vessel
Boiler regular blowdown and expansion container
Heat exchanger series
Corrugated plate heat exchanger
Bellows heat exchanger
Double-tube heat exchanger
Floating coil / semi-heatable heat exchanger
Efficient intelligent heat exchange unit
Positive displacement heat exchanger
Softened water series
Automatic softened water system
Automatic dosing device
Reverse osmosis system
Ion exchanger
Multi-media filter
Activated carbon filter

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