CN106286910B - A kind of angle check valve for high temperature and high pressure gas - Google Patents
A kind of angle check valve for high temperature and high pressure gas Download PDFInfo
- Publication number
- CN106286910B CN106286910B CN201610722944.9A CN201610722944A CN106286910B CN 106286910 B CN106286910 B CN 106286910B CN 201610722944 A CN201610722944 A CN 201610722944A CN 106286910 B CN106286910 B CN 106286910B
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- China
- Prior art keywords
- spring
- spool
- port
- gasket
- connector
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
Abstract
The invention discloses a kind of angle check valves for high temperature and high pressure gas, it includes valve body, spool, connector, spring, clamp nut, heat insulating mattress, spring base, guide pad, first gasket, second gasket and gasket, there are three ports for valve body tool, the third port of connector and valve body is fixedly linked, joints are in class tubular, centre has cavity, spool includes valve rod and ball head, spool ball head, which is arranged between third port and second port, to be formed in cavity, the valve core valve stem passes through guide pad central through hole and abuts spring base, a piece of heat insulating mattress is fitted on spring base, another is fitted on clamp nut, clamp nut is threadedly secured in an end of connector, spring is provided between two heat insulating mattress, first gasket is arranged between valve interior wall step surface and connector outer wall step surface, second gasket and pad Piece is sleeved on valve rod.Apparatus of the present invention are compact-sized, are avoided that spring high temperature fails, reliable operation.
Description
Technical field
The invention belongs to check valve technical fields, and in particular to a kind of angle check valve for high temperature and high pressure gas.
Background technique
As the important component in directional control fluid valve, connection or disconnection to fluid play important check valve
Effect, check valve only allows fluid to flow in one direction in systems, and is unable to reverse flow, and main performance requirements are stream
The pressure loss wants small when body passes through, and leakproofness will be got well when reversed obstructed, and movement wants sensitive.
But with the development of high temperature and pressure system, traditional check valve is since spring is exposed in high-temperature medium, spring
It can become as the temperature rises unstable, or even failure, cause check valve that can not work, existing angle check valve is due to setting
The reasons such as meter, work are also not sufficiently stable reliably, are not able to satisfy the needs of high temperature and pressure system.
Therefore, it is necessary to develop a kind of reliable and stable work and can be used for the check valve of high temperature and high pressure gas.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of for the straight of high temperature and high pressure gas
Angie type check valve makes its reliable and stable work, can be suitable for high-temperature high-pressure medium for a long time it is intended that being designed by structure,
It will not fail in a short time or job insecurity.
To achieve the above object, according to one aspect of the present invention, a kind of right angle for high temperature and high pressure gas is provided
Formula check valve comprising valve body, spool, connector, spring, clamp nut, heat insulating mattress, spring base, guide pad, the first gasket,
Second gasket and gasket, wherein
The valve body includes three ports, and the first port and the second port form right angle channel, the third
Port and the second port are located along the same line, and cavity is formed between the third port and the second port, described to connect
Head is fixedly linked with the third port,
The joints are in class tubular, and both ends open, centre has cavity, and is all provided at its outside wall surface and inner wall
Step surface is equipped with,
The spool includes valve rod and ball head, which is arranged in the third port and the second port
Between formed in cavity, which passes through and guide pad central through hole and abuts the spring base, the guide pad and the bullet
Spring abutment is arranged in the cavity of the connector,
The heat insulating mattress includes at least two panels, wherein a piece of be fitted on the spring base, another is fitted in the pressure
On tight nut, the clamp nut is threadedly secured at an inner wall of end of the connector, is arranged between two heat insulating mattress
There is spring,
The annular that the valve interior wall step surface and the connector outer wall step surface are formed is arranged in first gasket
In cavity, second gasket and the gasket are sleeved on the valve rod, and be located at simultaneously the guide pad end and
Between fitting end step surface.
Further, the ball head of the spool has tapered surface, is also tapered surface at the valve body first port inner wall,
There is the ball head of the spool tapered surface at tapered surface and the valve body first port inner wall to form cone seal, to make
The valve body, which is closed when resetting, has the function of automatic capturing.
Further, the valve stem end of the spool has the cambered surface of protrusion, and the spring base end has the arc of recess
Face is docked at the recess cambered surface that the spring base end has with the cambered surface fitting that the valve stem end of the spool can be made to protrude
Place, so as to form automatic capturing function.
Further, the valve body, the connector, the spring base, the spool, the clamp nut, the guiding
Block, the gasket are titanium alloy material, and first gasket and second sealing are graphite material.
Further, the valve core valve stem uses stepped profile, to guarantee that spool forms pressure difference in pressure medium.
Further, the connector is Openworks shape at spring corresponding to, in air by the naked leakage of spring, consequently facilitating
Heat dissipation.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
Spring is arranged and is provided with heat insulating mattress in splice cavity, and in both ends of the spring, can preferably protect spring
It is not influenced by high-temperature high-pressure medium, spring is to be isolated with high-temperature medium, then the spring can be prevented due to high temperature failure.Into one
Step, the conical seal (contact) face at the ball head of spool and the valve interior wall forms spherical docking, to form automatic capturing function,
The valve stem end cambered surface of the spool is docked with affiliated spring base concave-shaped arc surface, forms automatic capturing function, such design
It ensure that non-return valve operational reliability.Further, hollow design is used at connector installation spring, it is more preferable convenient for spring
Heat dissipation, further prevent spring because of high temperature failure.In addition, apparatus of the present invention are small in size, compact-sized, high reliablity.
Detailed description of the invention
Fig. 1 is a kind of angle check valve for high temperature and high pressure gas in the embodiment of the present invention.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- valve body 2- spool the first gasket of 3-
4- the second gasket 5- connector 6- spring
7- clamp nut 8- heat insulating mattress 9- spring base
10- guide pad 11- gasket
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is a kind of angle check valve for high temperature and high pressure gas in the embodiment of the present invention, as seen from the figure comprising
Valve body 1, the first gasket 3, the second gasket 4, connector 5, spring 6, clamp nut 7, heat insulating mattress 8, spring base 9, is led at spool 2
To block 10 and gasket 11.
Wherein, the valve body 1 includes three ports, and the first port and the second port form right angle channel, high
Warm high-pressure medium flows through the right angle channel, and the third port and the second port are located along the same line, the third end
Cavity is formed between mouth and the second port, the mode that valve body 1 and 5 third port of connector are connected through a screw thread fastens, 1 He of valve body
The first gasket 3 is equipped at 5 spiral docking of connector, the first gasket 3 is arranged in 1 inner wall step surface of valve body and the outer wall stand of connector 5
In the toroidal cavity that terrace is formed, sealing function can be preferably played.Spring 6 is equipped in connector 5,6 two sides of spring are equipped with heat-insulated
Pad 8, wherein the heat insulating mattress 8 with clamp nut 7 of side abut against, and clamp nut 7 is connected by screw thread with 5 end of connector, pressure
Tight nut 7 is tightened at the inner wall of 5 end of connector, and heat insulating mattress 8 and the spring base 9 of the other side offset, and spring base 9 is connected to connector
At the step surface of 5 internal cavities.Connector 5 is similar to tubular, and both ends open is provided with flange face on the outer wall, the flange face
Abutting is fitted in the third port of valve body 1.Multiple step surfaces are provided at 5 inner wall of connector, for installing the first gasket, leading
To block and spring base.
Spool 2 is inserted between the third port of valve body 1 and the second port and is formed in cavity, and 2 shape of spool is similar to
Ladder shaft-like, 2 one end of spool are valve rod, and 2 other end of spool is ball head.Spool 2 is integrally located inside spring base 9 and valve body 1
In cavity, 2 valve rod of spool be inserted into 10 center cavity of guide pad in, and 2 valve rod of spool abut spring base 9, spring base 9 be fitted in every
8 end face of heat pad, 8 other end of heat insulating mattress are inserted into the spring 6 abutted with itself, and 6 other end of spring is inserted by the heat insulating mattress 8 of the other side
Enter, the end face of the heat insulating mattress 8 of the other side abuts clamp nut 7.The axially position of spool 2 is carried out by connector 5, guide pad 10.
Second gasket 4 is located between 5 inner wall step surface of connector and guide pad 10, and gasket 11 is located at inner nosepiece wall 5 and 10 shape of guide pad
At the small chamber of annular in, the valve rod of spool 2 passes through among the second gasket 4, gasket 11, and 2 ball head end of spool is import
End, 2 ball head side-walls of spool are outlet end.
In the present invention, the valve body and the connector are connected through a screw thread, two heat insulating mattress, the bullet
Spring, the spring base, first, second gasket, the guide pad, the gasket, be placed in the connector with
In the cavity that the clamp nut is formed, wherein the spring, first heat insulating mattress, second heat-insulated by described
Spring base and the clamp nut are fixed, and prevent spring play in the cavity, and the spool passes through described
Spring base is pressed on the valve body sealing surface, and the valve rod on the spool passes through on the guide pad, the connector
In cavity moved.
In one embodiment of the invention, the valve body of the angle check valve, the connector, the spring
Seat, the spool, the clamp nut, the guide pad, the gasket select titanium alloy material, the angle check valve
First gasket and it is described second sealing be all made of soft graphite material.
In the present invention, the conical seal (contact) face at the ball head of the spool and the valve interior wall forms spherical docking, with
Form automatic capturing function.
In the present invention, the valve stem end cambered surface of the spool is docked with affiliated spring base concave-shaped arc surface, and formation is looked for automatically
Orthofunction.
In the present invention, the valve core valve stem uses stepped profile, guarantees that spool forms pressure difference in pressure medium.
In the present invention, spring is to be isolated with high-temperature medium, prevents the spring due to high temperature failure.
In the present invention, hollow design is used at the connector installation spring, the hollow design is for example circumferentially to open
If multiple holes, for hollow design by spring and air communication in order to radiate, the spring is mounted on the high silicon oxygen of lower thermal conductivity
Among the heat insulating mattress of phenolic resin material, it is ensured that the temperature at spring is relatively low.
The course of work of apparatus of the present invention is as follows:
When high temperature and high pressure gas is logical from the input end of 2 ball head end of spool (input end be the first port of valve body from)
When inlet/outlet end (second port that the outlet end is valve body), pressure overcomes the spring force of spring 9 to be moved to the left spool 2, valve
Mouthful (right angle channel opening) is opened, dielectric gas directly flows to outlet end from 1 inner passage of valve body, it is possible to reduce pressure damage
It loses.When input end pressure reduction, when outlet pressures increase, pressure reaches balance, and spool 2 moves right, and valve port is closed.
Apparatus of the present invention are small in size, compact-sized, realize check valve under high temperature and high pressure gas and work normally, avoid list
To valve due under high-temperature high-pressure state spring failure problem cause accident potential, its reliability is high.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of angle check valve for high temperature and high pressure gas, which is characterized in that it includes valve body (1), spool (2), connects
It is head (5), spring (6), clamp nut (7), heat insulating mattress (8), spring base (9), guide pad (10), the first gasket (3), second close
Packing (4) and gasket (11), wherein
The valve body (1) includes three ports, and first port and second port form right angle channel, third port and second port
It being located along the same line, forms cavity between third port and institute's second port, the connector (5) is fixedly linked with third port,
The connector (5) is in class tubular, and both ends open, centre has cavity, and is provided at its outside wall surface and inner wall
Step surface,
The spool (2) includes valve rod and ball head, which is arranged in the third port and the second end
It is formed in cavity between mouthful, which passes through guide pad (10) central through hole and abut the spring base (9), described to lead
It is arranged in the cavity of the connector (5) to block (10) and the spring base (9),
The heat insulating mattress (8) includes at least two panels, wherein a piece of be fitted on the spring base (9), another be fitted in it is described
On clamp nut (7), the clamp nut (7) is threadedly secured at an inner wall of end of the connector (5), heat-insulated at two
Spring (6) are provided between pad (8),
What the first gasket (3) setting was formed in the valve body (1) inner wall step surface and the connector (5) outer wall step surface
In toroidal cavity, second gasket (4) and the gasket (11) are sleeved on the valve rod, and are located at described lead simultaneously
To between block (10) end and connector (5) end step surface,
The ball head of the spool (2) has tapered surface, is also tapered surface at valve body (1) the first port inner wall, the valve
There is the ball head of core (2) tapered surface at tapered surface and the valve body (1) first port inner wall to form cone seal, to make
The valve body (2), which is closed when resetting, has the function of automatic capturing,
The valve stem end of the spool (2) has the cambered surface of protrusion, and spring base (9) end has the cambered surface of recess, with energy
The cambered surface fitting for protruding the valve stem end of the spool (2) is docked at the recess cambered surface that the spring base (9) end has,
So as to form automatic capturing function,
The valve body and the connector are connected through a screw thread, two heat insulating mattress, the spring, the spring
Seat, first, second gasket, the guide pad, the gasket are placed in the connector and the compression spiral shell
In the cavity that mother is formed, wherein the spring, two panels heat insulating mattress are carried out by the spring base and the clamp nut
It is fixed, spring play in the cavity is prevented, the spool is pressed in the valve body sealing surface by the spring base
On, the valve rod on the spool is moved by the cavity on the guide pad, the connector,
In high temperature and high pressure gas from the input end of spool (2) ball head end, when being passed through outlet end, pressure overcomes spring (9)
Spring force is moved to the left spool (2), and valve port is opened, and dielectric gas directly flows to outlet end from valve body (1) inner passage, can subtract
Lack the pressure loss, when input end pressure reduction, when outlet pressures increase, pressure reaches balance, and spool (2) moves right,
Valve port is closed,
Input end is at the first port of valve body, and outlet end is the second port of valve body.
2. a kind of angle check valve for high temperature and high pressure gas as described in claim 1, which is characterized in that the valve
Body, the connector, the spring base, the spool, the clamp nut, the guide pad, the gasket are titanium alloy material
Matter, first gasket and second gasket are graphite material.
3. a kind of angle check valve for high temperature and high pressure gas as claimed in claim 2, which is characterized in that the spool
Valve rod uses stepped profile, to guarantee that spool forms pressure difference in pressure medium.
4. a kind of angle check valve for high temperature and high pressure gas as claimed in claim 3, which is characterized in that the connector
It is Openworks shape at spring corresponding to, in air by the naked leakage of spring, consequently facilitating heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722944.9A CN106286910B (en) | 2016-08-25 | 2016-08-25 | A kind of angle check valve for high temperature and high pressure gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722944.9A CN106286910B (en) | 2016-08-25 | 2016-08-25 | A kind of angle check valve for high temperature and high pressure gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286910A CN106286910A (en) | 2017-01-04 |
| CN106286910B true CN106286910B (en) | 2019-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610722944.9A Active CN106286910B (en) | 2016-08-25 | 2016-08-25 | A kind of angle check valve for high temperature and high pressure gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286910B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420591B (en) * | 2017-07-25 | 2019-12-17 | 湖北三江航天红峰控制有限公司 | High-temperature one-way valve |
| CN108561598B (en) * | 2018-02-09 | 2020-04-07 | 北京宇航系统工程研究所 | High-temperature one-way valve |
| CN110173383B (en) * | 2019-05-29 | 2020-05-05 | 上海海事大学 | Injection experimental device for adjusting needle valve lift under high pressure |
| CN112963556B (en) * | 2021-02-05 | 2022-08-30 | 广东超人节能厨卫电器有限公司 | Valve element assembly, gas valve and stove |
| CN113357378B (en) * | 2021-06-01 | 2023-06-20 | 陕钢集团汉中钢铁有限责任公司 | High-temperature-resistant gas one-way valve |
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| CN201159314Y (en) * | 2008-02-22 | 2008-12-03 | 杭州华惠阀门有限公司 | High-performance full bore type safety valve |
| CN202091582U (en) * | 2011-04-15 | 2011-12-28 | 南京晨光集团有限责任公司 | Fuel gas safety valve for high-temperature and high-pressure fuel gas system |
| CN203500598U (en) * | 2013-09-29 | 2014-03-26 | 北京航天动力研究所 | Valve rod closed type closed back pressure adjusting type steam safe valve |
| CN204493810U (en) * | 2015-03-17 | 2015-07-22 | 徐州天科机械制造有限公司 | A kind of force switch one-way valve |
| CN105090581A (en) * | 2015-08-19 | 2015-11-25 | 湖北三江航天红峰控制有限公司 | Safety valve for high-temperature and high-pressure gas delivery pipeline |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3977562B2 (en) * | 1999-10-29 | 2007-09-19 | 株式会社東芝 | Main steam relief safety valve |
-
2016
- 2016-08-25 CN CN201610722944.9A patent/CN106286910B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159314Y (en) * | 2008-02-22 | 2008-12-03 | 杭州华惠阀门有限公司 | High-performance full bore type safety valve |
| CN202091582U (en) * | 2011-04-15 | 2011-12-28 | 南京晨光集团有限责任公司 | Fuel gas safety valve for high-temperature and high-pressure fuel gas system |
| CN203500598U (en) * | 2013-09-29 | 2014-03-26 | 北京航天动力研究所 | Valve rod closed type closed back pressure adjusting type steam safe valve |
| CN204493810U (en) * | 2015-03-17 | 2015-07-22 | 徐州天科机械制造有限公司 | A kind of force switch one-way valve |
| CN105090581A (en) * | 2015-08-19 | 2015-11-25 | 湖北三江航天红峰控制有限公司 | Safety valve for high-temperature and high-pressure gas delivery pipeline |
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| Publication number | Publication date |
|---|---|
| CN106286910A (en) | 2017-01-04 |
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