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Static equilibrium valve

A technology of static balance and valve body, which is applied in the field of balance valve and static balance valve to achieve the effect of high precision, high adjustment precision and reduced resistance

Inactive Publication Date: 2013-06-26
卓旦春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the above-mentioned problems in the prior art, and provide a static balance valve that saves labor and solves the surge problem when the large-caliber valve is small in opening.

Method used

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Embodiment Construction

[0035] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0036] Such as figure 1 , figure 2 As shown, the static balance valve includes a valve body 1 , a valve core 4 , a valve stem 5 , a hand wheel 6 and a return spring 8 .

[0037] The inside of the valve body 1 is a cavity, the left side is the water inlet 2, and the right side is the water outlet 3. Both the water outlet 3 and the water inlet 2 have a through hole for installing the push-type test head 17, which is convenient for the valve body. 1 The flow and pressure data at the water outlet 3 and the water inlet 2 are detected. The upper part of the valve body 1 is connected with an upper bonnet 12 by bolts, the middle part of the cavity of the valve body 1 has a valve seat 9, the lower part of the valve body 1 is thr...

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Abstract

The invention provides a static equilibrium valve and belongs to the technical field of valves. The static equilibrium valve solves the problems, for example, an existing static equilibrium valve is strenuous in hand wheel rotating, and a valve core structure is complex. The static equilibrium valve comprises a valve body, wherein the interior of the valve body is a cavity. A water inlet and a water outlet are respectively arranged on the left side and the right side of the valve body, a valve core is arranged in the valve body, the inner end of a valve rod is connected with the valve core, and the outer end of the valve rod stretches out of the valve body and is connected with a hand wheel. The valve rod is provided with a platen, the valve core comprises a big valve core and a small valve core, the small valve core is fixedly connected with the inner end of the valve rod and arranged in the big valve core, and the outer side face of the small valve core is tightly attached to the inner side face of the big valve core. A reset spring is arranged in the valve body, one end of the reset spring abuts against the bottom portion of the valve body, and the other end of the reset spring abuts against the big valve core. The static equilibrium valve has the advantages of being labor-saving in operation, solving the problem of surging when the valve has a heavy caliber and a small opening, and the like.

Description

technical field [0001] The invention belongs to the technical field of valves, and relates to a balance valve, in particular to a static balance valve. Background technique [0002] Static balance valve is also known as balance valve, manual balance valve, digital lock balance valve, two-position control valve, etc. It changes the flow resistance flowing through the valve by changing the gap (opening) between the valve core and the valve seat to achieve regulation. purpose of traffic. When the large-diameter valve is adjusted, when the opening between the valve core and the valve seat is small, the valve surge will be caused by the unbalanced force of the valve core, which will damage the internal parts of the valve body and destroy the sealing performance of the valve. [0003] In response to the above problems, people have made various improvements, and some have applied for patents. For example, Chinese patent literature discloses a double-spool high-pressure differentia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/38F16K1/44F16K31/50F16K47/02
Inventor 卓旦春
Owner 卓旦春
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