PPR all-pass type cut-off valve

A shut-off valve, through-type technology, applied in sliding valves, valve details, valve devices, etc., can solve the problems of inability, prone to displacement, poor flow control ability in the pipeline, etc. good flow effect

Inactive Publication Date: 2019-10-29
CHONGZHOU MINJIANG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other globe valves, the globe valve with low flow resistance and spherical spool has poor control ability to the flow in the pipeline. flow valve

Method used

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  • PPR all-pass type cut-off valve
  • PPR all-pass type cut-off valve
  • PPR all-pass type cut-off valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] Such as Figure 1 to Figure 5 As shown, a PPR full-way globe valve includes a valve body 1, a valve core 2, a rotating shaft 3, a hand wheel 4 and a valve cover 5, the rotating shaft 3 is rotatably connected to the valve cover 5, and the hand wheel 4 is sleeved on the rotating shaft 3, the valve core 2 is connected with the rotating shaft 3, the valve cover 5 is connected with the valve body 1, and the pipeline in the valve body 1 is a straight full-through type pipeline. The pipeline in the valve body 1 is provided with a conical counterbore, and the valve cover 5 is provided with a prismatic counterbore 501 and a shaft through hole 502 . The spool 2 includes a conical seal 202 and a prismatic connecting rod 201, the conical sealing 202 has the same taper as the coni...

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PUM

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Abstract

The invention relates to a PPR all-pass type cut-off valve which comprises a valve body (1), a valve element (2), a rotating shaft (3), a handwheel (4) and a valve cover (5). The rotating shaft (3) isrotatably connected with the valve cover (5); the handwheel (4) sleeves the rotating shaft (3); the valve element (2) is connected with the rotating shaft (3); the valve cover (5) is connected with the valve body (1); a pipeline in the valve body (1) is an all-pass type pipeline; the valve element (2) comprises a conical seal (20) and a prism connecting rod (201); the conical degrees of the conical seal (202) and a conical counterbore in the valve body (1) are the same; the prism connecting rod (201) is matched with a prism counterbore in the valve body (1); an internal thread is formed in the prism connecting rod (201); and the prism connecting rod (201) is connected with the rotating shaft (3). The pipeline in the valve body (1) is a linear all-pass type channel, and is small in flow resistance; and the valve element is lifted through the thread, so that the valve element has a throttle down function.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a PPR full-pass stop valve. Background technique [0002] The globe valve is one of the pipeline connection valves, also known as the gate valve, which belongs to the forced closing valve. Therefore, when the valve is closed, pressure must be applied to the valve core to force the sealing surface not to leak. At present, the conventional globe valves are angle globe valves and straight-through globe valves. The pipes in the valve body of the angle globe valve have upward and downward curved pipe structures respectively, and the joints of the two curved pipe structures form upward and downward sealing surfaces, and the sealing surface cooperates with the valve core to achieve the sealing effect. The structural volume is large, and the flow resistance is also large, which limits the flow velocity of the fluid in the pipeline. The pipeline in the valve body of the direct-flow glob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/22F16K3/314F16K3/30F16K27/04F16K31/60F16K41/02
CPCF16K3/22F16K3/30F16K3/314F16K27/041F16K31/60F16K41/02
Inventor 闵鑫宿利刘国全
Owner CHONGZHOU MINJIANG PLASTIC
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