CN101235908B

CN101235908B - Valve

Info

Publication number: CN101235908B
Application number: CN2007100029743A
Authority: CN
Inventors: 张清秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-31
Filing date: 2007-01-31
Publication date: 2012-05-30
Anticipated expiration: 2027-01-31
Also published as: CN101235908A

Abstract

The invention relates to a valve, which comprises a valve body, a valve spool and a rotating mechanism for driving the valve spool, wherein an inlet of the valve body is connected with pipe via screw thread or flange, an outlet of the valve body is connected with pipe in open type via screw thread or flange, a circular cavity is arranged between the inlet and outlet of the valve body and communicated with the outlet directly and with the inlet via the valve port, a round hole for passing the valve spool is arranged at the center of the circular cavity, one end of the round hole leads to outer of the valve body and the other end is communicated with the valve inlet, the surface of the valve port in inletting direction is an abrasive surface, the lower end of the valve spool is a thin column and the top end is a slender column. A through hole arranged at the thin column is opposite to the valve port hole, wherein the upper surface of the thin column is an abrasive surface coordinating with the abrasive surface of the valve port, thereby realizing on-off of the valve, the upper end of the slender column is connected with the driving mechanism for rotating the valve spool out of the valve body, and the thickness of the slender column is corresponding to the gap of the round hole in the valve body.

Description

Valve

Technical field

The present invention relates to a kind of valve class, more particularly: relate to a kind of Fluid valve.

Background technique

At present, various valves are arranged in valve field, as: stop valve; The dish valve; Ball valve; Gate valve; Selector valve; The various fire hoses are first-class, but not being seal ring, these valves do not wear out or mechanical wear, and be exactly that leakage phenomenon appears in over-pressure over-temperature; In case the more important thing is occur to leak just to need repairing or change whole valve body, have short defective of life-span.

For this reason, the creator among the present invention relies on it to be engaged in the experience and the practice of valve industry for many years, and concentrates on studies and develop, and draws finally to have no seal ring, anti-wear, high temperature high voltage resistant, a valve that leak-down rate is extremely low among the present invention.

Summary of the invention

Valve among the present invention solves mainly that the seal ring that existing all kinds of valves exist is aging, mechanical wear, HTHP etc. cause the leak fluid of valve---Oil, Water, Gas own.

A kind of valve comprises: valve body, spool, driving spool rotating mechanism, and wherein: the import of this valve body is connected with pipeline through screw thread or flange, and outlet is open or screw thread or flange are connected with pipeline; Between import and outlet, be provided with ring-like cavity, cavity directly with export be communicated with import between be communicated with through valve port; On ring-like cavity center, have a spool to pass circular hole, this circular hole one end leads to outside the valve body, and an end is communicated with import; The importer of valve port is an abradant surface to the surface;

The lower end of said spool is thin cylinder for thin cylinder, upper end; There is the valve port hole in through hole and the valve body relative on the wherein thin cylinder, is abradant surface above, cooperates the break-make that realizes valve with the valve port abradant surface; Wherein the upper end of thin cylinder is connected the thickness of thin cylinder and the circular hole Spielpassung in the valve body with the driving mechanism that valve body drives the spool rotation outward;

Said driving spool driving mechanism is spanner, ball float or electromagnet.

Valve body and valve core chamber have a spring be used for realizing valve not with or pipeline in hydrodynamic pressure cross and guarantee closely cooperating of spool and valve port when low.

Valve port among the present invention and valve body fabrication and processing are integral.Spool and valve port contact-making surface are abradant surface, and the many more sealings of valve core rotation number of times are good more; The abradant surface cooperation of spool and valve port prevents that effectively fluid from leaking from valve body and valve core chamber; The suffered outward pressure of big valve core is big more more based on fluid pressure in the pressure principle pipeline, and pressure big valve core and sealing valve port more is good more; Because whole valve does not have sealing ring or sealing gasket, do not leak so do not exist sealing ring or sealing gasket problem of aging to produce; Solve wearing and tearing and produce leakage.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment among the present invention is done further explain.

Fig. 1 is the plan view of valve of the present invention, and Fig. 2 is the worm's eye view of valve of the present invention.

Embodiment

Like Fig. 1, shown in 2, the valve among the present invention mainly includes one by the stainless steel casting, reaches the valve body 10 of technical requirements after the machining, spool 1, and spring 4, spanner 5 connects retaining screw 7 and forms.

Wherein, the import of valve body and pipeline screwed connection, the outlet also with the pipeline screwed connection.Wherein ring-like chamber 3 is communicated with, is communicated with through two on the valve port 11 symmetrical through holes 9 with import 2 with outlet 6.The lower plane of valve port 11 is an abradant surface.

Have two symmetrical through hole 8 sizes identical with valve body mesopore 9 in the spool 1 lower end thin column, plane is similarly abradant surface on it.The thin cylinder in upper end passes the valve body center hole, topmost spanner 5 cubic hole assemblings is coupled together with screw 7 for cubic type.Before fitter spanner 5, spring 4 is enclosed within (like figure) on the thin cylinder of spool.

Spool mesopore 8 among Fig. 2, valve body mesopore 9 does not overlap.So valve closing.Rotate to 90 when spending when plate changes spanner 5, valve is opened fully, two symmetrical through holes 8 on the spool 1 gradually with the valve port 11 of valve body on two symmetrical through holes 9 overlapping.Fluid gets into spool mesopore 8 through the import of valve, and flow out from valve outlet 6 in valve body mesopore 9, ring-like chamber 3.

Spring 4 prevents that spool 1 is little or glide when not using at pipeline pressure.Because pressure action, spool produces the pressure outside valve body.Guarantee that spool produced outside pressure increase when fluid pressure increased in pipeline.Because the surface of contact between the valve port of spool and valve body is good more in the more sealings of valve core rotation number of times.Thereby realize that valve leakage situation can not occur.

It is reasonable that the present invention has compact structure in sum, and sealing is strong, and reliability is high, and is simple in structure.Advantages such as rate of fault is low, and is easy to maintenance.

In addition, above-mentionedly only an instantiation among the present invention is made detailed description, can not be as protection scope of the present invention.The equivalence that every design spirit in according to the present invention has been done changes or modifies, and all should be considered to invade protection scope of the present invention.

Claims

1. valve, comprising: valve body, spool, driving spool rotating mechanism is characterized in that: the import of this valve body is connected with pipeline by screw thread or flange, and outlet is open or screw thread or flange are connected with pipeline; Between import and outlet, be provided with ring-like cavity, cavity directly with export be communicated with import between be communicated with by valve port; On ring-like cavity center, have a spool to pass circular hole, this circular hole one end leads to outside the valve body, and an end is communicated with import; The importer of valve port is an abradant surface to the surface;

The lower end of said spool is thin cylinder for thin cylinder, upper end; There is the valve port hole in through hole and the valve body relative on the wherein thin cylinder, is abradant surface above, cooperates the break-make that realizes valve with the valve port abradant surface; Wherein the upper end of thin cylinder is that tetragonal prism is connected with the driving mechanism that valve body drives spool outward, the thickness of thin cylinder and the circular hole Spielpassung in the valve body;

Said driving spool rotating mechanism is spanner, ball float or electromagnet.

2. valve as claimed in claim 1 is characterized in that: said valve body and valve core chamber have a spring.