Novel throttling reverse type pressure-reducing and speed-controlling regulating valve

Abstract

The invention belongs to the related technical field of pressure regulating valves, and discloses a novel throttling reverse type pressure-reducing and speed-controlling regulating valve which comprises a valve body, a valve deck, a valve rod, a throttling assembly, a novel sleeve type valve element and a flow guide sleeve, wherein the valve deck is connected to the valve body, one end of the valve rod penetrates through the valve deck and then stretches into the valve body, and the valve rod is used for driving the novel sleeve type valve element to move; the novel sleeve type valve element is connected to the end, located in the valve body, of the valve rod and located between the throttling assembly and the flow guide sleeve; the flow guide sleeve is contained in the valve body, and thethrottling assembly is partially contained in the flow guide sleeve; and the throttling assembly comprises a plurality of space corner throttling elements, multiple throttling flow channels are formed in the space corner throttling elements, and the multiple throttling flow channels communicate with one another in the axial direction of the space corner throttling elements. The regulating valve improves pressure reduction and energy consumption effects and consumes the kinetic energy of a medium to effectively control the flow velocity of the medium in a pressure reduction element.

Description

technical field [0001] The invention belongs to the related technical field of pressure regulating valves, and more specifically relates to a novel throttling and offset pressure reducing and speed control regulating valve. Background technique [0002] The control valve is a control device widely used in high temperature and high pressure fields such as power stations, metallurgy, and petrochemicals. Its main function is to adjust parameters such as pressure, flow, temperature, and liquid level. In the automatic control of modern factories, regulating valves play a very important role, and the production process depends on the correct distribution and control of the flowing medium. These controls include processes such as energy exchange and pressure reduction. These control processes need to be completed by regulating valves. The sudden reduction of the flow area will cause the flow rate of the medium to rise rapidly, which will cause smooth marks on the metal surface of ...

AI Technical Summary

Problems solved by technology

These controls include processes such as energy exchange and pressure reduction. These control processes need to be completed by regulating valves. The sudden reduction of the flow area will cause the flow rate of the medium to rise rapidly, which will cause smooth marks on the metal surface of the regulating valve, causing problems such as vibration and noise

[0003] Under this working condition, severe fluctuations in medium pressure and speed will cause severe vibration and noise, resulting in shortened service life of the regulating valve; under this working condition, the medium is prone to flashing and cavitation, and flashing and cavitation will affect the metal material of the regulating valve. Serious damage will affect the normal operation and service life of the control valve

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