CN207406851U - Automatic stop valve - Google Patents
Automatic stop valve Download PDFInfo
- Publication number
- CN207406851U CN207406851U CN201721519554.8U CN201721519554U CN207406851U CN 207406851 U CN207406851 U CN 207406851U CN 201721519554 U CN201721519554 U CN 201721519554U CN 207406851 U CN207406851 U CN 207406851U
- Authority
- CN
- China
- Prior art keywords
- valve body
- cut
- reset button
- spring
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of automatic stop valve, including reset button component, sealing ring, cut-out valve body, spring, inner elements of check valve and piston component；The one end for cutting off valve body is equipped with inlet end, and the other end for cutting off valve body is equipped with outlet side, and one end of inner elements of check valve is arranged on by spring in cut-out valve body, and is withstood on the inside of the inlet end of cut-out valve body, and inner elements of check valve is moved by spring horizontal；One end of the other end of inner elements of check valve and piston component connects, and the other end of piston component and one end of reset button component connect, and the recessing of the other end expression in the eyes of reset button component is broken the outside of valve body；Reset button component is connected by sealing ring with stop valve body seal.The utility model has preferable corrosion resistance, sealing performance, and intensity is high, can occur pipeline breaking in downstream or cutting ferrule collapse it is de- cut off valve body in time when abnormal conditions, medium large flow are released, it is safer on natural gas facility.
Description
Technical field
The utility model is related to natural gas facility field more particularly to a kind of automatic stop valves.
Background technology
The purposes of natural gas is extremely wide, such as power generation, manufacture nitrogenous fertilizer, city gas, automobile with compressed natural gas, industry combustion
Material, pitch heating and thermal insulation etc..But natural gas is flammable and explosive substance, raw natural gas also contains various concentration hydrogen sulfide,
Toxicity increases with concentration of hydrogen sulfide and is increased.In the long distance pipeline production and operation, pressure gauge, buckling, the impulse of main line block valve
The equipment such as pipe are often connected using cutting ferrule, it is ensured that pipeline connects reliable No leakage.But since part uses domestic pressure guiding pipe and cutting ferrule
The reasons such as equipment, installation personnel technical merit cause repeatedly to occur pressure guiding pipe cutting ferrule and collapse de- event, and fire explosion occurs, and cause tight
Weight economic loss and environmental pollution.By repeatedly studying, the automatic stop valve of novel belt reset is devised.
Utility model content
The purpose of this utility model：A kind of automatic stop valve is provided, it is simple in structure, it is easy to use, it is at low cost.
To achieve these goals, the technical solution of the utility model is：
A kind of automatic stop valve, including reset button component, sealing ring, cut-out valve body, spring, inner elements of check valve and work
Plug assembly；One end of the cut-out valve body is equipped with inlet end, and the other end of the cut-out valve body is equipped with outlet side, institute
The one end for the inner elements of check valve stated is arranged on by the spring in the cut-out valve body, and withstands the stop valve
On the inside of the inlet end of main body, the inner elements of check valve is moved by the spring horizontal；The inner elements of check valve it is another
One end is connected with one end of the piston component, the other end of the piston component and the one of the reset button component
End connection, the outside of the recessed cut-out valve body of the other end expression in the eyes of the reset button component；The reset is pressed
Button component is connected by the sealing ring with the stop valve body seal；The reset button component, sealing ring, bullet
Spring, inner elements of check valve and piston component are located along the same line.
Above-mentioned automatic stop valve, wherein, resetting spring is socketed on the reset button component, is cut positioned at described
Between disconnected valve body and the outboard end of the reset button component.
Above-mentioned automatic stop valve, wherein, the reset button component, cut-out valve body, spring and inner elements of check valve
It is made of Stainless steel 316 material.
Above-mentioned automatic stop valve, wherein, the sealing ring is " O " shape structure, and the outer layer of the sealing ring is poly-
Tetrafluoroethene annulus, internal layer are silicon rubber loop.
Above-mentioned automatic stop valve, wherein, the piston component is made of chromium nickel stainless steel material.
Above-mentioned automatic stop valve, wherein, the end of the piston component is equipped with sealing pair, and the piston component leads to
The inner end that the sealing pair is crossed with the reset button component is connected.
Above-mentioned automatic stop valve, wherein, the sealing pair is made of polytetrafluoroethylene (PTFE) material.
The utility model has preferable corrosion resistance, sealing performance, and intensity is high, can occur in downstream pipeline breaking or
Person's cutting ferrule collapse it is de- cut off valve body in time when abnormal conditions, medium large flow are released, it is safer on natural gas facility.
Description of the drawings
Fig. 1 is the sectional view of the utility model automatic stop valve.
Specific embodiment
The embodiment of the utility model is further illustrated below in conjunction with attached drawing.
Refer to shown in attached drawing 1, a kind of automatic stop valve, including reset button component 1, sealing ring 2, cut-out valve body 3,
Spring 4, inner elements of check valve 5 and piston component 6；One end of the cut-out valve body 3 is equipped with inlet end, the stop valve master
The other end of body 3 is equipped with outlet side, and one end of the inner elements of check valve 5 is arranged on the cut-out by the spring 4
It in valve body 3, and withstands on the inside of the inlet end of the cut-out valve body 3, the inner elements of check valve 5 passes through the spring
4 move horizontally；The other end of the inner elements of check valve 5 is connected with one end of the piston component 6, the piston component
6 other end is connected with one end of the reset button component 1, the other end expression in the eyes of the reset button component 1 it is recessed
The outside of the cut-out valve body 3；The reset button component 1 passes through the sealing ring 2 and the stop valve master
Body 3 is tightly connected；Reset button component 1, sealing ring 2, spring 4, inner elements of check valve 5 and the piston component 6 is located at same
On straight line.
Resetting spring 11 is socketed on the reset button component 1, is answered positioned at the cut-out valve body 3 with described
Between the outboard end of position button assembly 1, make reset button component 1 that there is elasticity, convenient for resetting.
Reset button component 1, cut-out valve body 3, spring 4 and the inner elements of check valve 5 is Stainless steel 316 material system
Into.Automatically cut off valve body directly and media contact, bear pressure medium and corrosion, material therefor in defined medium temperature and
It must reach mechanical property and good hot and cold processing technology under pressure effect.Draw in view of automatic stop valve is all mounted on
On before the instrumentations such as pressure pipe, and mostly inflammable and explosive and Korrosionsmedium, therefore automatically cut off valve body and preferably use stainless steel.
Spring 4 is the vital part of automatic stop valve, and the quality of big spring influences the sealing performance and service life of valve,
The quality of little spring then influences overcurrent cut-out performance, and the quality of spring 4 is heavily dependent on the material of spring.It is relatively suitable
The quick action emergency valve spring material answered is 1Cr18Ni9 class austenitic stainless steels, as long as processing is proper, has both been resistant to the corruption of natural gas
Erosion, and can guarantee the quality of spring 4.
The sealing ring 2 is " O " shape structure, and the outer layer of the sealing ring 2 is polytetrafluoroethylene (PTFE) annulus, internal layer is silicon
Rubber ring.For sealing ring 2 with medium leakage, corrosion-resistant, wearability, oil resistivity performance is prevented, glue-line is suitable for working temperature, resistance to
Aging.2 sealing performance of sealing ring is excellent, and working life is high, and dynamic pressure seal service life as compared traditional rubber sealing article is high
5-10 times, decades of times is reached as high as, it under certain conditions can be with sealing the matrix same service life.2 frictional resistance of sealing ring is small, dynamic and static
Frictional force is equal, is 1/2-the 1/4 of " 0 " shape rubber ring frictional force, can eliminate " creeping " phenomenon moved under low speed, low pressure.It is close
2 high abrasion of seal has the function of automatic elastic compensating after sealing surface wear.2 good self-lubricating property of sealing ring can make oil-free
Lubrication sealing.
The piston component 6 is made of chromium nickel stainless steel material.
The end of the piston component 6 be equipped with sealing pair 61, the piston component 6 by the sealing pair 61 with
The inner end connection of the reset button component 1.
The sealing pair 61 is made of polytetrafluoroethylene (PTFE) material.Since automatic stop valve is used for the device of gas medium
On, the corrosion and erosion of the necessary resistance to natural gas of seal face materials of sealing pair 61.Further, since the sealing force of such valve is main
It is pressure medium and spring force, very big sealing force can not be added, so piston component 6 selects polytetrafluoroethylene (PTFE) and chromium nickel stainless steel
Combining structure.The good corrosion resistance of polytetrafluoroethylene (PTFE), coefficient of friction is small, and chemical stability is strong, is suitble to use in such medium.
Chromium nickel stainless steel（The common trade mark 0Cr18Ni9,0Cr18Ni9Ti, 1Cr18Ni9 and 1Cr18Ni9Ti）Have good corrosion-resistant
Property, lower temperature resistance and abrasion-resistance, suitable for gas medium, use temperature range can be in -196~600 DEG C.Sealing surface
It should be approached with the linear expansion coefficient of bulk material, and the structure for inlaying sealing ring is also critically important, in order to avoid answer masterpiece in additional
Loosening is generated with lower.
In use, when automatic stop valve fills medium, reset button component 1 is pressed, reset button component 1 promotes piston group
Part 6 opens inner elements of check valve 5, and medium is made to pass through automatic stop valve.Pressure medium enters piston leading portion simultaneously, according to piston both sides
Pressure difference overcome the spring force of spring 4, keep pressure balance, maintenance automatically cuts off the valve opening state.After pressure balance, unclamp
Reset button component 1.Pipeline breaking occurs for automatic stop valve downstream or cutting ferrule collapses the abnormal conditions such as de-, medium large flow is released
When, since pressure reduces, piston both sides pressure difference can not overcome the spring force of spring 4, automatically cut off valve breakdown, and cut-out flow is let out
It puts.It treats downstream problems after treatment, presses reset button component 1, open automatic stop valve, it is unimpeded to recover pipeline.It is multiple simultaneously
For position button assembly 1 since automatic stop valve is closed, automatic stop valve pushes piston component 6 and reset button component 1, so resetting
Button assembly 1 presses stress, it can be determined that and automatic stop valve is turned off at this time, is not almost stressed as reset button component 1 presses,
It may determine that automatic stop valve opening at this time.
In conclusion the utility model has preferable corrosion resistance, sealing performance, intensity is high, can occur in downstream
Pipeline breaking or cutting ferrule collapse it is de- cut off valve body in time when abnormal conditions, medium large flow are released, mounted on natural gas facility
It is upper safer.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure transformation made using the utility model description is directly or indirectly related with other are attached to
The technical field of product, is equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of automatic stop valve, it is characterised in that：Including reset button component, sealing ring, cut-out valve body, spring, unidirectional
Valve core and piston component；One end of the cut-out valve body is equipped with inlet end, and the other end of the cut-out valve body is set
There is outlet side, one end of the inner elements of check valve is arranged on by the spring in the cut-out valve body, and is withstood
On the inside of the inlet end of the cut-out valve body, the inner elements of check valve is moved by the spring horizontal；The list
It is connected to the other end of valve core with one end of the piston component, the other end of the piston component and the reset
One end connection of button assembly, the outside of the recessed cut-out valve body of the other end expression in the eyes of the reset button component；
The reset button component is connected by the sealing ring with the stop valve body seal；The reset button group
Part, sealing ring, spring, inner elements of check valve and piston component are located along the same line.
2. automatic stop valve according to claim 1, it is characterised in that：Reset is socketed on the reset button component
Spring, between the outboard end of the cut-out valve body and the reset button component.
3. automatic stop valve according to claim 1, it is characterised in that：The reset button component, cut-out valve body,
Spring and inner elements of check valve are made of Stainless steel 316 material.
4. automatic stop valve according to claim 1, it is characterised in that：The sealing ring is " O " shape structure, described
The outer layer of sealing ring is polytetrafluoroethylene (PTFE) annulus, internal layer is silicon rubber loop.
5. automatic stop valve according to claim 1, it is characterised in that：The piston component is chromium nickel stainless steel material
It is made.
6. automatic stop valve according to claim 1, it is characterised in that：The end of the piston component is equipped with sealing
Pair, the piston component are connected by the sealing pair with the inner end of the reset button component.
7. automatic stop valve according to claim 6, it is characterised in that：The sealing pair is polytetrafluoroethylene (PTFE) material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721519554.8U CN207406851U (en) | 2017-11-15 | 2017-11-15 | Automatic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721519554.8U CN207406851U (en) | 2017-11-15 | 2017-11-15 | Automatic stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406851U true CN207406851U (en) | 2018-05-25 |
Family
ID=62319312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721519554.8U Expired - Fee Related CN207406851U (en) | 2017-11-15 | 2017-11-15 | Automatic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681524A (en) * | 2022-11-11 | 2023-02-03 | 盐城市大丰燃气设备有限公司 | High-safety quick combined type gas valve protection device |
-
2017
- 2017-11-15 CN CN201721519554.8U patent/CN207406851U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681524A (en) * | 2022-11-11 | 2023-02-03 | 盐城市大丰燃气设备有限公司 | High-safety quick combined type gas valve protection device |
| CN115681524B (en) * | 2022-11-11 | 2023-12-26 | 盐城市大丰燃气设备有限公司 | High-safety quick combined gas valve protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181115 |