CN212454360U - Gate valve leakage sealing device for freezing temporary plugging operation - Google Patents
Gate valve leakage sealing device for freezing temporary plugging operation Download PDFInfo
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- CN212454360U CN212454360U CN202021026352.1U CN202021026352U CN212454360U CN 212454360 U CN212454360 U CN 212454360U CN 202021026352 U CN202021026352 U CN 202021026352U CN 212454360 U CN212454360 U CN 212454360U
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- gate valve
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- plugging operation
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Abstract
The utility model provides a gate valve leaks sealing device outward for freezing stifled operation temporarily. The apparatus may comprise: the gate valve comprises a sealing sleeve, a first sealing element, a second sealing element, a first connecting plate, a second connecting plate and a connecting piece, wherein the sealing sleeve can be sleeved on a valve rod of the gate valve; both of the first seal can be installed into the first seal groove; a second seal is mountable in the second seal groove; the first connecting plate is arranged at one end of the sealing sleeve, which is far away from the gate valve; the second connecting plate is arranged on the back of the gate valve; the connecting piece can both be connected first, second connecting plate. The beneficial effects of the utility model can include: the structure is simple and convenient, the sealing effect is good, the manufacturing cost is low, the gate valve can be prevented from leaking, a freezing bridge plug with good compactness is formed, and the safety and the effectiveness of the freezing temporary plugging operation construction process are ensured.
Description
Technical Field
The utility model relates to an oil and gas exploitation technical field especially relates to a gate valve leaks sealing device outward for freezing stifled operation temporarily.
Background
The freezing temporary plugging technology is mainly used for temporarily plugging an annular space and an oil pipe in the well workover of a high-pressure oil-gas well. By adopting the equipment and the technology, the annular space and the inner diameter of the oil pipe can be simultaneously plugged within the range of-35 ℃ to +50 ℃ of the environmental temperature, the highest plugging pressure can reach 70MPa, and the equipment and the technology have high safety. The temporary plugging agent is injected into the annulus and the oil pipe through an injection system of a refrigerating device, then the temperature is reduced around the casing pipe, the temperature around the casing pipe is kept at about-70 ℃ by using dry ice, and the casing pipe on the outer layer is gradually frozen into the oil pipe until the temporary plugging agent is tightly combined with the casing pipe and the oil pipe, so that the requirements of sealing the annulus and the inner diameter of the oil pipe are met.
At present, many onshore oil and gas fields in China enter middle and later development stages, oil (gas) production well mouths are exposed outdoors for a long time to cause external leakage of partial oil (gas) production well mouths or gates, and in the process of freezing temporary plugging operation, the external leakage of valves can cause poor sealing performance of formed freezing bridge plugs to cause freezing failure.
SUMMERY OF THE UTILITY MODEL
To the not enough that exist among the prior art, the utility model aims to solve one or more problems that exist among the above-mentioned prior art. For example, an object of the present invention is to provide a gate valve leakage sealing device for freezing temporary plugging operation, so as to ensure smooth development of freezing temporary plugging operation.
In order to realize the purpose, the utility model provides a gate valve leaks sealing device outward for freezing stifled operation temporarily. The apparatus may comprise: the gate valve comprises a sealing sleeve, a plurality of first sealing elements, a plurality of second sealing elements, a first connecting plate, a second connecting plate and a connecting piece, wherein the sealing sleeve is provided with a through cavity body so that the sealing sleeve can be sleeved on a valve rod of the gate valve, the wall of the cavity body is provided with a plurality of first sealing grooves, and the end face, facing the gate valve, of the sealing sleeve is also provided with a plurality of second sealing grooves; the number of the first sealing elements is the same as that of the first sealing grooves, the first sealing elements can correspond to the first sealing grooves one by one, and each first sealing element can be installed in the corresponding first sealing groove; the number of the second sealing elements is the same as that of the second sealing grooves, the second sealing elements can correspond to the second sealing grooves one by one, and each second sealing element can be installed in the corresponding second sealing groove; the first connecting plate is arranged at one end of the sealing sleeve, which is far away from the gate valve; the second connecting plate is arranged on the back of the gate valve; the connecting piece can both be connected first, second connecting plate.
According to the utility model discloses an exemplary embodiment, the gate valve can also be normal gate valve for leaking the gate valve outward, under the condition for normal gate valve, can prevent that the later stage from leaking outward.
According to an exemplary embodiment of the present invention, the axial cross section of the seal cartridge cavity may be rectangular and the radial cross section may be circular.
According to an exemplary embodiment of the present invention, both the first sealing groove and the second sealing groove may be annular grooves.
According to an exemplary embodiment of the present invention, both the first sealing element and the second sealing element may be O-rings.
According to an exemplary embodiment of the present invention, the number of the first sealing member may be 2 ~ 5.
According to the utility model discloses an exemplary embodiment, the seal cover is served and can be opened the draw-in groove that is equipped with that the seal cover deviates from the gate valve, and first connecting piece can the buckle in the draw-in groove.
According to an exemplary embodiment of the present invention, the clamping groove may be a ring-shaped clamping groove.
According to the utility model discloses an exemplary embodiment, can open on the first connecting plate and be equipped with two at least first connecting holes, can open on the second connecting plate and be equipped with two at least second connecting holes, first connecting hole is the same with the quantity of second connecting hole to can the one-to-one.
According to an exemplary embodiment of the present invention, the connecting member may include a plurality of sets of bolts and nuts in a corresponding relationship.
According to an exemplary embodiment of the present invention, the connecting member may include a plurality of sets of sub-connecting members, each set of sub-connecting members including 1 screw rod and 2 nuts, both ends of the screw rod being provided with the threaded section.
Compared with the prior art, the beneficial effects of the utility model can include: simple structure, sealed effectual, can solve the gate valve and leak the technical problem that can't freeze and block up the operation temporarily.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural diagram of a gate valve leakage sealing device for temporary freezing plugging operation according to the present invention;
description of the main reference numerals:
10-sealing sleeve, 20-first sealing element, 30-second sealing element, 40-first connecting plate, 50-second connecting plate and 60-second connecting plate.
Detailed Description
Hereinafter, the gate valve leakage sealing device for freezing temporary plugging operation according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
The utility model provides a gate valve leaks sealing device outward can be with before freezing the temporary stifled operation the utility model discloses a sealing device installs on the valve (or gate valve) that have the outer hourglass, can guarantee to freeze the smooth development of temporary stifled operation.
In an exemplary embodiment of the present invention, the gate valve leakage sealing device for freezing temporary plugging operation may include: can carry out the seal assembly who seals to outer hourglass gate valve to and can fix the coupling assembling on outer hourglass gate valve with seal assembly.
The seal assembly may include a sealing sleeve 10, a number of first seals 20, a number of second seals 30 as shown in fig. 1.
The sealing boot 10 may have a hollow cavity with an opening formed in each end face of the boot. The sealing sleeve 10 can be sleeved on the valve rod of the spilled gate valve. Still be provided with the first seal groove of a plurality of on the cavity wall of seal cover 10, still be provided with a plurality of second seal groove on an terminal surface of seal cover, this terminal surface can be towards the gate valve. The first and second sealing grooves may be annular grooves, and of course, may be sealing grooves of other shapes as long as the sealing purpose can be achieved.
The number of first seals 20 is the same as the number of first seal grooves, and each first seal can be installed in one first seal groove to achieve sealing. Further, consider that the gate valve rod surface is not smooth in most times on the gas production tree, for guaranteeing sealed effect, first sealing member can be 2 ~ 5, for example 3.
The number of second seals 30 is the same as the number of second seal grooves, each of which can be installed in one of the second seal grooves to effect a seal. Both the first and second sealing members may comprise sealing rings, such as O-rings, but other types of sealing members are possible as long as the sealing purpose is achieved.
The first connecting plate 40 can be snapped onto the end of the sealing sleeve 10 not provided with the second sealing groove. A plurality of first connecting holes are formed in the first connecting plate, and the first connecting holes can be uniformly formed in the plate surface of the first connecting plate 40.
A plurality of second connecting holes are formed in the second connecting plate 50, and the plurality of second connecting holes can be uniformly formed in the plate surface of the second connecting plate 50. The number of the second connecting holes is the same as that of the first connecting holes, and the second connecting holes can correspond to the first connecting holes one by one. The second connecting plate sets up the back at outer hourglass gate valve.
The connector 60 may include a plurality of sub-connectors, the number of which is the same as the number of the first connection holes and corresponds one to one, that is, the sub-connectors may correspond one to one with the first and second connectors in a pair relationship with each group. Each group of sub-connecting pieces can connect the first connecting plate and the second connecting plate through the first connecting hole and the second connecting hole which are in corresponding relation. For example, the sub-connecting member may include a bolt that can be inserted into the corresponding first and second connecting holes and a nut that can be screwed on the bolt for connection fixation.
When installing the outer sealing device that leaks of gate valve, can install second sealing member and first sealing member in the sealing boot earlier, install the seal cover on the gate valve rod again, utilize front and back connecting plate (being first connecting plate and second connecting plate) and connecting bolt to install the seal cover of installing the sealing member on the valve, connecting bolt is connected front and back connecting plate, and then installs the outer sealing device that leaks of gate valve outside the gate valve, in other words, the seal cover of installing the sealing member can rely on the pulling force of front and back connecting plate and bolt to install on the gate valve that has the outer hourglass.
To sum up, the utility model discloses a gate valve that is used for freezing temporarily stifled operation leaks sealing device's advantage can include:
(1) simple structure, good sealing effect and low manufacturing cost.
(2) The gate valve can be ensured not to leak, a freezing bridge plug with good compactness is formed, and the safety and the effectiveness of the freezing temporary plugging operation construction process are ensured.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A gate valve leakage sealing device for temporary freezing plugging operation, characterized in that the device comprises: a sealing sleeve, a plurality of first sealing elements, a plurality of second sealing elements, a first connecting plate, a second connecting plate and a connecting piece, wherein,
the sealing sleeve is provided with a through cavity body so that the sealing sleeve can be sleeved on a valve rod of the gate valve, the wall of the cavity body is provided with a plurality of first sealing grooves, and the end face, facing the gate valve, of the sealing sleeve is also provided with a plurality of second sealing grooves;
the number of the first sealing elements is the same as that of the first sealing grooves, the first sealing elements can correspond to the first sealing grooves one by one, and each first sealing element can be installed in the corresponding first sealing groove;
the number of the second sealing elements is the same as that of the second sealing grooves, the second sealing elements can correspond to the second sealing grooves one by one, and each second sealing element can be installed in the corresponding second sealing groove;
the first connecting plate is arranged at one end of the sealing sleeve, which is far away from the gate valve;
the second connecting plate is arranged on the back of the gate valve;
the connecting piece can both be connected first, second connecting plate.
2. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein the axial section of the sealing boot cavity is rectangular, and the radial section is circular.
3. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein the first sealing groove and the second sealing groove are annular grooves.
4. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein the first sealing member and the second sealing member are O-ring seals.
5. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein the number of the first sealing members is 2-5.
6. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein a clamping groove is formed in one end of the sealing sleeve, which is away from the gate valve, and the first connecting piece can be buckled in the clamping groove.
7. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 6, wherein said clamping groove is an annular clamping groove.
8. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein the first connecting plate is provided with at least two first connecting holes, the second connecting plate is provided with at least two second connecting holes, and the first connecting holes and the second connecting holes have the same number and can be in one-to-one correspondence.
9. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein said connecting member comprises a plurality of sets of bolts and nuts in corresponding relationship.
10. The gate valve leakage sealing device for temporary freezing plugging operation as claimed in claim 1, wherein said connecting member comprises a plurality of sets of sub-connecting members, each set of sub-connecting members comprises 1 screw and 2 nuts, and both ends of the screw are provided with threaded sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026352.1U CN212454360U (en) | 2020-06-05 | 2020-06-05 | Gate valve leakage sealing device for freezing temporary plugging operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026352.1U CN212454360U (en) | 2020-06-05 | 2020-06-05 | Gate valve leakage sealing device for freezing temporary plugging operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212454360U true CN212454360U (en) | 2021-02-02 |
Family
ID=74491194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021026352.1U Active CN212454360U (en) | 2020-06-05 | 2020-06-05 | Gate valve leakage sealing device for freezing temporary plugging operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212454360U (en) |
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2020
- 2020-06-05 CN CN202021026352.1U patent/CN212454360U/en active Active
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