CN210739363U - Emergency cut-off valve with self-sealing function - Google Patents
Emergency cut-off valve with self-sealing function Download PDFInfo
- Publication number
- CN210739363U CN210739363U CN201921598218.6U CN201921598218U CN210739363U CN 210739363 U CN210739363 U CN 210739363U CN 201921598218 U CN201921598218 U CN 201921598218U CN 210739363 U CN210739363 U CN 210739363U
- Authority
- CN
- China
- Prior art keywords
- sawtooth
- sealing
- valve
- sawtooth portion
- self
- 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.)
- Active
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to an urgent block valve, especially an urgent block valve with self sealss function, including being annular first sealing washer, first sealing washer is used for sealing between barrel and the lateral wall, is provided with first sawtooth portion and second sawtooth portion on the both sides face on the first sealing washer respectively, and first sawtooth portion and second sawtooth portion all set up towards the side outside protrusion, correspond on the barrel be provided with the third sawtooth portion of first sawtooth portion looks adaptation, correspond on the lateral wall be provided with the fourth sawtooth portion of second sawtooth portion looks adaptation. The utility model provides an urgent block valve with self sealss function, including first sealing washer, can realize that the broken line is sealed, has strengthened the sealed effect between barrel and the lateral wall greatly, can greatly reduced because of the not hard up probability that leads to sealed inefficacy between valve body and the barrel casing of fixing bolt to the urgent block valve that significantly reduces is closed unusually, and the high report of tertiary back pressure, well station unusually turn-offs, influences the number of times of gas field normal operating.
Description
Technical Field
The utility model relates to an urgent block valve, especially an urgent block valve with self sealss function.
Background
In the gas production process of a high-sulfur-content gas field, in order to ensure the safety of the sulfur-containing natural gas acquisition and gas transmission process, emergency cut-off valves are installed in the production field station and the acquisition and gas transmission branch lines in the design and construction processes and are used for isolating the sulfur-containing natural gas of a single station or even the branch lines when leakage occurs so as to control the leakage amount.
As shown in fig. 1, the existing emergency shut-off valve includes a valve body 3 and a sleeve 2 matched with the valve body 3, a valve rod 6 is connected to the sleeve 2 through a thread, the sleeve 2 includes a cylinder body 21 and a first flange portion 22, the valve body 3 includes a side wall 31 and a second flange portion 32, the cylinder body 21 is matched with the side wall 31, the first flange portion 22 is matched with the second flange portion 32, the first flange portion 22 is connected with the second flange portion 32 through a fixing bolt 5 to ensure the mutual fixation of the valve body 3 and the sleeve 2, a hard sealing member 7 is arranged between the first flange portion 22 and the second flange portion 32, and the hard sealing member 7 is used for sealing between the first flange portion 22 and the second flange portion 32, so as to seal the valve body 3 and the sleeve 2.
And in the processes of daily production operation, batch processing, inspection and maintenance and branch yield adjustment, the emergency cut-off valve needs to be switched on and off, and the switching of an actuating mechanism of the emergency cut-off valve has two modes of manual operation and pneumatic operation, wherein when the emergency cut-off valve is switched on and off manually by using a hand wheel, because the valve rod 6 on the emergency cut-off valve enters and exits the cylinder sleeve 2 and generates axial force with the cylinder sleeve 2 in the long-time use process, the fixing bolt 5 for fixing the valve body 3 and the cylinder sleeve 2 is loosened, the hard sealing element 7 fails, the cylinder sleeve 2 leaks air, the airtight air storage function is lost, the emergency cut-off valve is closed abnormally, the high pressure alarm after three levels is caused, the well station is shut off abnormally, and the normal operation of a gas field is.
Therefore, based on the above, there is a need for an emergency shut-off valve , which can greatly reduce the probability of sealing failure between the valve body 3 and the sleeve 2 caused by the looseness of the fixing bolt 5, thereby greatly reducing the frequency of abnormal closing of the emergency shut-off valve, high pressure alarm after three levels, abnormal shut-off of a well station and influence on the normal operation of a gas field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the emergency cut-off valve with the self-sealing function is provided, the probability of sealing failure between the valve body and the cylinder sleeve due to loosening of the fixing bolt can be greatly reduced, and the times of abnormal closing of the emergency cut-off valve, abnormal high pressure alarm after three levels, abnormal shut-off of a well station, abnormal shut-off of the well station and influence on normal operation of a gas field can be greatly reduced.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides an emergency block valve with self sealss function, is including being annular first sealing washer, first sealing washer is used for sealing between barrel and the lateral wall, be provided with first sawtooth portion and second sawtooth portion on two sides on the first sealing washer respectively, first sawtooth portion with second sawtooth portion all corresponds towards the side outside protrusion sets up, correspond on the barrel be provided with the third sawtooth portion of first sawtooth portion adaptation, correspond on the lateral wall be provided with the fourth sawtooth portion of second sawtooth portion adaptation.
The utility model provides an urgent truncation valve with self sealss function, including being annular first sealing washer for it is sealed between barrel and the lateral wall, be provided with first sawtooth portion and second sawtooth portion on the both sides face on the first sealing washer respectively, first sawtooth portion and third sawtooth portion adaptation, second sawtooth portion and fourth sawtooth portion adaptation, it is sealed to realize the broken line, the sealed effect between barrel and the lateral wall has been strengthened greatly, and can bear certain barrel axial force, the probability of sealing failure between can greatly reduced valve body and the barrel casing, thereby the urgent truncation valve that significantly reduces is unusually closed, the high report of tertiary back pressure, the well station is unusually shut off, influence the number of times of gas field normal operating.
When the scheme is installed, the first sealing ring is installed on the valve body firstly, so that the second sawtooth part is matched with the fourth sawtooth part, the first sawtooth part and the second sawtooth part face the side face outer side in a protruding mode, the cylinder sleeve needs to be pressed into the valve body, and then the cylinder body and the side wall are connected through the fixed bolt, so that the first sawtooth part is matched with the third sawtooth part, and the purpose of final installation is achieved.
Preferably, the first or second serrations have a T-shaped profile.
The first sawtooth part or the second sawtooth part of the T-shaped tooth shape can bear larger axial force of the sleeve under the condition of bearing the same sealing effect.
Preferably, the first sawtooth part and/or the third sawtooth part are/is provided with at least three circles of sawteeth along the axial direction of the sleeve.
When the relative displacement between the cylinder body and the side wall is overlarge, the upper layer of sawteeth slide into the lower layer of gullets, sealing can still be guaranteed, the probability of sealing failure between the valve body and the cylinder sleeve due to overlarge relative displacement between the cylinder body and the side wall is greatly reduced, and therefore the frequency that the emergency shut-off valve is abnormally closed, the pressure is high after three levels, the well station is abnormally shut off, and the normal operation of a gas field is influenced is greatly reduced.
Preferably, the first serration is an interference fit with the third serration.
First sawtooth portion and third sawtooth portion interference fit can reach better sealed effect.
Preferably, the second serration is an interference fit with the fourth serration.
The second sawtooth part and the fourth sawtooth part are in interference fit to achieve a better sealing effect.
Preferably, the flange further comprises a second sealing ring in an annular shape, and the second sealing ring is used for sealing between the first flange part and the second flange part.
Set up the second sealing washer between first flange portion and the second flange portion for realize many places between valve body and the barrel casing sealed, in order to reach better sealed effect.
Preferably, the first sealing ring and the second sealing ring are integrally formed structural members.
The first sealing ring and the second sealing ring are integrally formed structural members, the second sealing ring is used for assisting in positioning the first sealing ring, and the situation that when the initial state is caused by installation reasons, the first sawtooth part and the third sawtooth part or the second sawtooth part and the fourth sawtooth part cannot achieve a matching effect, so that the first sealing ring is failed to be installed is avoided.
Preferably, the second sealing ring is provided with a through hole for a fixing bolt to pass through.
Preferably, the first sealing ring or the second sealing ring is a structural member made of rubber.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model provides an urgent truncation valve with self sealss function, including first sealing washer, can realize that the broken line is sealed, the sealed effect between barrel and the lateral wall has been strengthened greatly, and can bear certain barrel axial force, make when fixing bolt is not hard up, first sawtooth portion and third sawtooth portion, second sawtooth portion and fourth sawtooth portion still looks adaptation, can greatly reduced lead to the probability of sealing failure between valve body and the barrel casing because of fixing bolt is not hard up, thereby the urgent truncation valve that significantly reduces is closed unusually, the high report of tertiary back pressure, the well station is turn-offed unusually, influence the number of times of gas field normal operating.
2. The utility model provides an urgent block valve with self sealss function, when the relative displacement between barrel and the lateral wall is too big, the upper strata sawtooth slides into down in the one deck tooth's socket, still can guarantee sealedly, the relative displacement between the barrel that significantly reduces and the lateral wall is too big, and the probability of sealing failure between valve body and the barrel casing that causes, thereby the urgent block valve that significantly reduces is closed unusually, the high report of tertiary back pressure, well station is turn-off unusually, influence the number of times of gas field normal operating.
3. The utility model provides an emergency shut-off valve with self sealss function, first sealing washer with the second sealing washer is integrated into one piece's structure, utilizes the second sealing washer to come the first sealing washer of assistance-localization real-time, when avoiding causing initial condition because of the installation reason, can not reach the cooperation effect between first sawtooth portion and third sawtooth portion or second sawtooth portion and the fourth sawtooth portion, causes first sealing washer installation to become invalid.
Drawings
FIG. 1 is a schematic view of the seal between the valve body and the cartridge of a prior art emergency stop valve;
FIG. 2 is a schematic view of the seal between the valve body and the sleeve of an emergency shut-off valve with self-sealing function according to the present application;
FIG. 3 is a cross-sectional view of a first seal ring construction of the present application;
fig. 4 is a sectional view showing the structure of the third serration and the fourth serration of the present application.
The labels in the figure are: 1-first sealing ring, 11-first sawtooth part, 12-second sawtooth part, 2-barrel sleeve, 21-barrel body, 22-first flange part, 211-third sawtooth part, 3-valve body, 31-side wall, 311-fourth sawtooth part, 32-second flange part, 4-second sealing ring, 5-fixing bolt, 6-valve rod and 7-hard sealing element.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 2 to 4, an emergency shutdown valve with a self-sealing function includes an annular first seal ring 1, the first seal ring 1 is used for sealing between a cylinder 21 and a sidewall 31, two side surfaces of the first seal ring 1 are respectively provided with a first serration portion 11 and a second serration portion 12, the first serration portion 11 and the second serration portion 12 are both arranged to protrude toward the outer side of the corresponding side surface, the cylinder 21 is correspondingly provided with a third serration portion 211 adapted to the first serration portion 11, and the sidewall 31 is correspondingly provided with a fourth serration portion 311 adapted to the second serration portion 12.
The application discloses an emergency block valve with self-sealing function, including being annular first sealing washer 1 for it is sealed between barrel 21 and lateral wall 31, be provided with first sawtooth portion 11 and second sawtooth portion 12 on the both sides face on the first sealing washer 1 respectively, first sawtooth portion 11 and third sawtooth portion 211 looks adaptation, second sawtooth portion 12 and fourth sawtooth portion 311 looks adaptation, realize the broken line is sealed, the sealed effect between barrel 21 and lateral wall 31 has greatly been strengthened, and can bear certain barrel 21 axial force, make when fixing bolt 5 becomes flexible, first sawtooth portion 11 and third sawtooth portion 211, second sawtooth portion 12 and fourth sawtooth portion 311 still looks adaptation, can greatly reduce because of fixing bolt 5 becomes flexible the probability that leads to the sealed inefficacy between valve body 3 and barrel casing 2, thereby the emergency block valve that significantly reduces is unusually closed, tertiary back pressure height reports, and the well station is abnormally shut down, so that the normal operation frequency of the gas field is influenced.
When the scheme is installed, the first sealing ring 1 is installed on the valve body 3 firstly, so that the second sawtooth part 12 is matched with the fourth sawtooth part 311, the first sawtooth part 11 and the second sawtooth part 12 are arranged towards the outer side of the side face in a protruding mode, the cylinder sleeve 2 needs to be pressed into the valve body 3, and then the cylinder body 21 and the side wall 31 are connected through the fixing bolt 5, so that the first sawtooth part 11 is matched with the third sawtooth part 211, and the purpose of final installation is achieved.
In addition, in a more preferable aspect, the first serration 11 or the second serration 12 has a T-shaped tooth profile.
The first serration 11 or the second serration 12 of the T-profile can withstand greater axial forces of the sleeve 2 while withstanding the same sealing effect.
Example 2
As shown in fig. 2 to 4, in the emergency shutdown valve with self-sealing function according to embodiment 1, the first serration part 11 and/or the third serration part 211 is provided with at least three circles of serrations along the axial direction of the cartridge 2.
When the relative displacement between the cylinder body 21 and the side wall 31 is overlarge, the upper layer of sawteeth slide into the lower layer of gullets, sealing can still be guaranteed, the probability of sealing failure between the valve body 3 and the cylinder sleeve 2 caused by overlarge relative displacement between the cylinder body 21 and the side wall 31 is greatly reduced, and therefore the frequency that the emergency cut-off valve is abnormally closed, the pressure is high and high after three levels, a well station is abnormally shut off, and normal operation of a gas field is affected is greatly reduced.
In addition, it is further preferable that the first serration part 11 is interference-fitted to the third serration part 211.
The first serration 11 and the third serration 211 are in interference fit to achieve a better sealing effect.
In addition, it is further preferable that the second serration part 12 is interference-fitted to the fourth serration part 311.
The interference fit of the second serration 12 and the fourth serration 311 can achieve a better sealing effect.
Example 3
As shown in fig. 2 to 4, the emergency shutdown valve with a self-sealing function according to embodiment 1 or 2 further includes a second sealing ring 4 having an annular shape, and the second sealing ring 4 is used for sealing between the first flange portion 22 and the second flange portion 32.
The second sealing ring 4 is arranged between the first flange part 22 and the second flange part 32, so that a plurality of sealing positions are realized between the valve body 3 and the cylinder sleeve 2, and a better sealing effect is achieved.
In addition, in a more preferable mode, the first seal ring 1 and the second seal ring 4 are integrally molded structures.
The first sealing ring 1 and the second sealing ring 4 are integrally formed structural members, the second sealing ring 4 is used for assisting in positioning the first sealing ring 1, and the situation that the first sealing ring 1 is failed to be installed due to the fact that the first sawtooth part 11 and the third sawtooth part 211 or the second sawtooth part 12 and the fourth sawtooth part 311 cannot achieve a matching effect in the initial state caused by installation reasons is avoided.
In addition, in a more preferable mode, the second seal ring 4 is provided with a through hole for passing the fixing bolt 5.
In addition, in a more preferable mode, the first seal ring 1 or the second seal ring 4 is a rubber-made structural member. The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides an urgent block valve with self sealss function which characterized in that: including being annular first sealing washer (1), first sealing washer (1) is used for between barrel (21) and lateral wall (31) sealedly, be provided with first sawtooth portion (11) and second sawtooth portion (12) on two sides on first sealing washer (1) respectively, first sawtooth portion (11) with second sawtooth portion (12) all set up towards corresponding side outside protrusion, correspond on barrel (21) be provided with third sawtooth portion (211) of first sawtooth portion (11) looks adaptation, correspond on lateral wall (31) be provided with fourth sawtooth portion (311) of second sawtooth portion (12) looks adaptation.
2. The emergency shut-off valve with self-sealing function as claimed in claim 1, wherein: the tooth shape of the first sawtooth part (11) or the second sawtooth part (12) is T-shaped.
3. The emergency shut-off valve with self-sealing function as claimed in claim 1, wherein: the first sawtooth part (11) and/or the third sawtooth part (211) are/is provided with at least three circles of sawteeth along the axial direction of the cylinder sleeve (2).
4. The emergency shut-off valve with self-sealing function as claimed in claim 1, wherein: the first sawtooth part (11) is in interference fit with the third sawtooth part (211).
5. The emergency shut-off valve with self-sealing function as claimed in claim 1, wherein: the second sawtooth part (12) is in interference fit with the fourth sawtooth part (311).
6. An emergency shut-off valve with self-sealing function according to any one of claims 1 to 5, wherein: the sealing structure further comprises a second annular sealing ring (4), and the second annular sealing ring (4) is used for sealing between the first flange part (22) and the second flange part (32).
7. The emergency shut-off valve with self-sealing function as claimed in claim 6, wherein: the first sealing ring (1) and the second sealing ring (4) are integrally formed structural parts.
8. The emergency shut-off valve with self-sealing function as claimed in claim 6, wherein: and a through hole for a fixing bolt (5) to pass through is formed in the second sealing ring (4).
9. The emergency shut-off valve with self-sealing function as claimed in claim 6, wherein: the first sealing ring (1) or the second sealing ring (4) is a structural member made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598218.6U CN210739363U (en) | 2019-09-24 | 2019-09-24 | Emergency cut-off valve with self-sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598218.6U CN210739363U (en) | 2019-09-24 | 2019-09-24 | Emergency cut-off valve with self-sealing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739363U true CN210739363U (en) | 2020-06-12 |
Family
ID=70987702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921598218.6U Active CN210739363U (en) | 2019-09-24 | 2019-09-24 | Emergency cut-off valve with self-sealing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739363U (en) |
-
2019
- 2019-09-24 CN CN201921598218.6U patent/CN210739363U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210739363U (en) | Emergency cut-off valve with self-sealing function | |
| CN212107014U (en) | High leakproofness ball valve is sealed | |
| CN212177917U (en) | Corrugated pipe valve combining plane sealing and conical surface sealing | |
| CN204664486U (en) | Top, air sealed threeway storehouse switching valve | |
| CN213746106U (en) | Cylinder valve for gas cylinder and gas cylinder | |
| CN203718010U (en) | High-pressure ball valve | |
| CN208252765U (en) | A kind of sealing element and the nuclear power regulating valve with the sealing element | |
| CN214425254U (en) | Valve with reinforcement type self-sealing structure | |
| CN203500474U (en) | Sealing ring for pipeline connection | |
| CN102954236A (en) | Stop valve based on high-tightness valve clack | |
| CN207178725U (en) | A kind of stop valve leakage preventing mechanism for oil truck emergency cut-off | |
| CN206738584U (en) | Sequencing valve | |
| CN220204792U (en) | Novel high-sealing self-closing angle valve | |
| CN219866438U (en) | Check interference valve convenient to adjust and improve leakproofness | |
| CN209370509U (en) | A kind of ceramic hard-seal knife-shape gate valve | |
| CN205937909U (en) | Novel non -rising -stem gate valve | |
| CN201159292Y (en) | Anti-leakage blind plate valve | |
| CN214247954U (en) | Hexagonal pressing cap | |
| CN110836295A (en) | Plug-and-play quick-assembly pipeline connecting assembly | |
| CN208123608U (en) | Bellows stop valve | |
| CN203532904U (en) | Transformer oil tank valve | |
| CN220268495U (en) | Biopharmaceutical diaphragm valve | |
| CN220851747U (en) | Steel cylinder cut-off valve | |
| CN220134708U (en) | Gas valve with anti-drop sealing flat gasket | |
| CN216158337U (en) | Gate valve with V-shaped flashboard structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |