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A throttling part of a flow regulating valve, a valve sleeve of a flow regulating valve and a flow regulating valve

A technology of flow regulating valve and throttling parts, which is applied in the fields of flow regulating valve sleeves, flow regulating valves, and flow regulating valve throttling parts. It can solve problems such as cavitation, large valve pressure drop, erosion, etc., and prevent damage , the effect of improving the service life

Active Publication Date: 2018-10-30
XIAN QINSHEN SPECIAL CONTROL VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing known control valves are prone to vibration and noise in the flow field; the pressure drop at the valve is the largest when the opening is small, and the vibration and noise are also the most prominent; often accompanied by cavitation and erosion , causing the sealing surface of the valve components to be damaged in a short time
Nowadays, there are many kinds of labyrinth speed-limiting throttling devices at home and abroad. This kind of labyrinth or cascaded speed-limiting throttling devices are not only easy to block, but also have serious erosion after a period of use.

Method used

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  • A throttling part of a flow regulating valve, a valve sleeve of a flow regulating valve and a flow regulating valve
  • A throttling part of a flow regulating valve, a valve sleeve of a flow regulating valve and a flow regulating valve
  • A throttling part of a flow regulating valve, a valve sleeve of a flow regulating valve and a flow regulating valve

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Embodiment 1

[0040] Such as figure 1 and figure 2 The throttling element of a flow regulating valve shown includes a cylindrical throttling element body 1-1, and the outer wall of the throttling element body 1-1 is provided with a spiral groove 1-2 for reducing the fluid velocity One end surface of the throttle body 1-1 is provided with a fluid inlet 1-3 for the fluid to enter the spiral groove 1-2, and the other end surface of the throttle body 1-1 is provided with a fluid inlet 1-3 for the fluid to enter the spiral groove 1-2. Fluid flows out of the fluid outlet 1-4 of said helical groove 1-2.

[0041] Such as image 3 The valve sleeve of a flow regulating valve shown includes a throttling sleeve 2 and a plurality of throttling elements 1 described in this embodiment, and a plurality of throttling element installation holes 2 are opened on the side wall of the throttling sleeve 2 -2 and a plurality of communication holes 2-1 for communicating with the throttle member installation hol...

Embodiment 2

[0050] Such as Figure 6 and Figure 7 Shown is a throttling piece of a flow regulating valve, the difference between the throttling piece of the flow regulating valve in this embodiment and the throttling piece of the flow regulating valve in Embodiment 1 lies in: the spiral groove 1-2 It includes a plurality of reaming holes 1-2-1 arranged at intervals along its helical direction and a plurality of recesses connecting two adjacent reaming holes 1-2-1 along the helical direction of the helical groove 1-2. Slot section 1-2-2.

[0051] Such as Figure 8 Shown is a flow regulating valve sleeve, the difference between the flow regulating valve sleeve in this embodiment and the flow regulating valve sleeve in Embodiment 1 is that the flow regulating valve sleeve adopts the The throttling piece 1 mentioned above.

[0052] In this embodiment, the throttling piece 1 is installed in the throttling piece installation hole 2-2 of the valve sleeve of the flow regulating valve when in...

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Abstract

The invention discloses a flow regulating valve throttling element which comprises a cylindrical throttling element body. An outer wall of the throttling element body is provided with a spiral groove for reducing the flow velocity of fluid, one end face of the throttling element body is provided with a fluid inlet for the fluid to flow into the spiral groove, and the other end face of the throttling element body is provided with a fluid outlet for the fluid to flow out of the spiral groove. The throttling element can decelerate the fluid and reduce the pressure of the fluid so as to effectively achieve the goal of throttling. The invention further discloses a valve sleeve of a flow regulating valve. The valve sleeve comprises the flow regulating valve throttling element. The external fluid can be effectively led into the valve sleeve after being decelerated and depressurized through the throttling element, and the goal of throttling is effectively achieved. The invention further discloses the flow regulating valve which comprises the valve sleeve of the flow regulating valve. The flow regulating valve can effectively prevent the fluid in a high-speed and high-pressure state from damaging the sealing surfaces of a valve core and a valve seat and prolong service life.

Description

technical field [0001] The invention belongs to the technical field of flow regulating valves, and in particular relates to a throttling part of a flow regulating valve, a valve sleeve of a flow regulating valve and a flow regulating valve. Background technique [0002] Most of the existing known control valves are prone to vibration and noise in the flow field; the pressure drop at the valve is the largest when the opening is small, and the vibration and noise are also the most prominent; often accompanied by cavitation and erosion , causing the sealing surface of the valve components to be damaged in a short time. There are many kinds of labyrinth speed-limiting throttling devices at home and abroad. This kind of labyrinth or cascaded speed-limiting throttling devices are not only easy to block, but also very serious erosion after a period of use. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of the above-mention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K47/12F16K1/00
CPCF16K1/00F16K47/12
Inventor 刘东升程江磊刘超郭巧婷
Owner XIAN QINSHEN SPECIAL CONTROL VALVE CO LTD
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