Medium crystallization prevention pump valve adjustable in flow rate

Abstract

The invention discloses a medium crystallization prevention pump valve adjustable in flow rate. The medium crystallization prevention pump valve adjustable in flow rate comprises a pump valve body, wherein a threaded hole is formed in the top of the pump valve body, a temperature sensor is connected in the threaded hole in a threaded mode, an analog to digital (A\D) converter is electrically connected onto the temperature sensor, a single chip microcomputer (SCM) is electrically connected onto the A\D converter, and an electric heat tracing ring is electrically connected onto the SCM. The temperature sensor is arranged in the pump valve body for monitoring temperature in the pump valve body, and when the temperature is low, the SCM controls the electric heat tracing ring to emit heat so asto raise the temperature of the pump valve body and prevent that a medium is crystallized and generates solid particles, and mechanical sealing and use life of the valve are influenced due to the fact that the solid particles are accumulated on a mechanical sealing end face and a sealing position on a valve core of the valve, and furthermore the used electric heat tracing ring has the advantagesof being small in size and small in occupied space, and starts to work under control of the SCM when the temperature is low.

Description

technical field [0001] The invention relates to the technical field of pump valves, in particular to an anti-medium crystallization pump valve with adjustable flow rate. Background technique [0002] Pump valve is a general term for pumps and valves. Valves not intended for use in pumps or valves with a pumping action. The reason pumps and valves are often associated is the application. That is to say, where there are pumps, there are generally valves, and some places often need pumps. They are both used in places where liquids are transported. Of course, valves are also used for gases. Vacuum pumps are also related to gases. The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automati...

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Problems solved by technology

[0003] The disadvantage is that after the valve is closed, the temporarily stored water in the pump valve cannot be discharged, and it is easy to cause freezing and cracking of the water pipe in winter, which brings inconvenience to people.

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