Sealing valve with double valve plates

A technology of sealing valve and double valve plate, which is applied in the direction of lifting valve, valve details, valve device, etc., can solve the problems of dangerous working environment for operators, complicated operation, complicated mechanism, etc., and achieve good closing effect, simple valve structure, and tight sealing good effect

Inactive Publication Date: 2013-03-13
张家政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blind plate valves are mainly used in pipelines for flammable and explosive media. The existing blind plate valves include a blind plate rotating mechanism and a blind plate clamping and releasing mechanism. The above two mechanisms are quite complicated and bulky. In addition, this blind valve has the following disadvantages:
[0003] (1) To use this blind valve, a butterfly valve of the same size as the blind valve needs to be configured at the front end of the inlet, and a telescopic tube (bellows) needs to be configured at the rear end of the outlet, which is too expensive
[0004] (2) The operation is complicated. When opening and closing the valve, the butterfly valve at the front end of the air inlet must be closed fi

Method used

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  • Sealing valve with double valve plates
  • Sealing valve with double valve plates
  • Sealing valve with double valve plates

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1 (see Figure 1-4):

[0036] The valve plate of Example 1 is a cone type valve plate.

[0037] This embodiment includes a left valve body 23, a middle valve body 9, a right valve body 10, a left valve plate 1, a right valve plate 14 and a valve plate linkage mechanism; the left valve body 23, the right valve body 10 and the middle valve body are respectively 9 sealed connection; sealing rings are provided between the left valve plate 1 and the right valve plate 14 and the medium inlet and outlet on the left and right valve bodies; the valve plate linkage mechanism is hinged with the left valve plate and the right valve plate respectively.

[0038] The valve plate linkage mechanism is composed of a first upper connecting frame 20, a lower connecting frame 19, a first guide rod 8, a first connecting plate 4 to a fourth connecting plate 21 that are threadedly connected with the screw 6 and the screw 6; The lower end of the screw 6 is fixedly connected to the lower wall o...

Example Embodiment

[0047] Embodiment 2 (see Figure 5, Figure 6, Figure 1, Figure 4):

[0048] Embodiment 2 is suitable for valves with larger diameters. The difference between embodiment 2 and embodiment 1 is the left and right cone-shaped valve plate linkage mechanism. The left and right cone-shaped valve plate linkage mechanism of embodiment 2 consists of screw 6, and The second lower connecting frame 31, the second upper connecting frame, the second guide rod 30 to the fifth guide rod 38, and the fifth to twelfth connecting plate which are threadedly connected by the lead screw 6 are composed; the lower end of the lead screw 6 passes through the shaft The sleeve 18 is fixedly connected to the lower wall of the middle valve body 9, and its upper end extends out of the upper wall of the middle valve body 9, and a sealing ring 7 is provided on the upper part of the contact part between the upper wall of the middle valve body 9 and the screw 6; The threads of the upper and lower parts of the screw 6...

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Abstract

The invention relates to a sealing valve with double valve plates, which comprises a left valve body, a middle valve body, a right valve body, a left valve plate, a right valve plate and a valve plate linkage mechanism, wherein the left valve body and the right valve body are respectively in sealing connection with the middle valve body; a sealing ring is arranged between the left valve plate and a medium inlet on a left valve body as well as the right valve plate and a medium outlet on the right valve body; and the valve plate linkage mechanism is respectively hinged with the left valve plate and the right valve plate. The sealing valve with double valve plates has the advantages as follows: (1), the valve structure is simple and compact; (2), the operation is convenient; (3), no leakage of poison gas when opening or closing the valve guarantees the safety of workers; (4), the closing effect of the valve is better, and the other valve plate supplies the guarantee in case that one valve plate leaks the gas; (5), the valve can replace existing various blind valves, butterfly valves, ball valves and sluice valves, and so on; and (6), the jacking press function of the valve plate linkage mechanism results in tighter closing and better sealing of the valve.

Description

technical field [0001] The invention relates to a double valve plate sealing valve, which is used to replace the existing blind plate valve, and can also be used to replace butterfly valves, gate valves, ball valves and the like. Background technique [0002] Blind plate valves are mainly used in pipelines for flammable and explosive media. The existing blind plate valves include a blind plate rotating mechanism and a blind plate clamping and releasing mechanism. The above two mechanisms are quite complicated and bulky. In addition, this blind valve has the following disadvantages: [0003] (1) To use this kind of blind valve, a butterfly valve of the same size as the blind valve needs to be configured at the front end of the inlet, and a stretch tube (bellows) needs to be configured at the rear end of the outlet, which is too expensive. [0004] (2) The operation is complicated. When opening and closing the valve, the butterfly valve at the front end of the air inlet must...

Claims

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Application Information

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IPC IPC(8): F16K1/16F16K31/50
Inventor 张家政张利张旗
Owner 张家政
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