CN212376631U - Constant pressure air release valve for oil well - Google Patents
Constant pressure air release valve for oil well Download PDFInfo
- Publication number
- CN212376631U CN212376631U CN202021054750.4U CN202021054750U CN212376631U CN 212376631 U CN212376631 U CN 212376631U CN 202021054750 U CN202021054750 U CN 202021054750U CN 212376631 U CN212376631 U CN 212376631U
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- cover
- oil well
- valve body
- steel ball
- constant pressure
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Abstract
The utility model discloses an oil well level pressure bleed valve, which comprises a valve body, adjust pole and sealed steel ball, be provided with the through-hole in the valve body, adjust pole and through-hole threaded connection, the right side of valve body is provided with the sleeve pipe, sheathed tube opening part is provided with block structure, the intraductal sealed steel ball that is provided with of cover, be provided with the logical groove that is linked together with sheathed tube inside in the regulation pole, the right side opening that sealed steel ball will lead to the groove seals, be provided with the gas release hole on the sleeve pipe, be provided with the air inlet on the valve body, be provided with the inlet port that is used for intercommunication air inlet and logical groove on adjusting the pole, block structure includes the closing cap, the closing cap is through first helicitic texture and bushing, first helic. The utility model discloses change the traditional welding mounting means of block structure into screw thread mounting means, make things convenient for maintenance, the maintenance in later stage, provide very big facility for the staff.
Description
Technical Field
The utility model relates to an oil well wellhead assembly technical field especially relates to an oil well constant pressure bleed valve.
Background
The oil well constant pressure air release valve is an important component of an oil well wellhead device, can release casing gas, control oil well casing pressure and prevent produced liquid from flowing backwards to an oil well shaft, the structure of the existing oil well constant pressure air release valve is shown in figure 1, and comprises a valve body 1-1, an adjusting rod 1-2 and a sealing steel ball 1-3, a through hole 1-4 is arranged in the valve body 1-1, the adjusting rod 1-2 is in threaded connection with the through hole 1-4 through a threaded structure, a casing 1-5 is arranged on the right side of the valve body 1-1, a sealing plate 1-6 is fixedly arranged at the opening of the casing 1-5, a sealing steel ball 1-3 is arranged in the casing 1-5, a compression spring 1-7 is arranged between the sealing steel ball 1-3 and the sealing plate 1-6, a through groove 1-8 communicated with the inside of, the right opening of the through groove 1-8 is sealed by the sealing steel ball 1-3, the sleeve 1-5 is provided with an air vent 1-9, the valve body 1-1 is provided with an air inlet 1-10, the adjusting rod 1-2 is provided with an air inlet 1-11 for communicating the air inlet 1-10 with the through groove 1-8, the closing plate 1-6 is provided with an air vent 1-12, and the working principle is as follows: the pressure of a compression spring 1-7 is adjusted by screwing an adjusting rod 1-2, gas generates pressure on the left side of a sealing steel ball 1-3 after passing through an air inlet 1-10, an air inlet 1-11 and a through groove 1-8 in sequence, when the pressure is greater than the pressure generated by the compression spring 1-7, the sealing steel ball 1-3 moves rightwards, the gas comes out from a gap between the adjusting rod 1-2 and the sealing steel ball 1-3 and is discharged through an air discharge hole 1-9 and an air discharge hole 1-12, the air discharge process is realized, and when the internal air pressure is reduced, the through groove 1-8 is sealed again by the sealing steel ball 1-3.
In the manufacturing process of the structure, the sealing plates 1-6 and the sleeves 1-5 are generally connected in a welding mode, the connection mode is stable in structure, but not beneficial to later maintenance, and the sealing plates are detached after welding spots are ground every time, so that the structure is very troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid prior art's weak point, provide oil well constant pressure bleed valve to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: oil well level pressure bleed valve, including the valve body, adjust pole and sealed steel ball, be provided with the through-hole in the valve body, adjust pole and through-hole threaded connection, the right side of valve body is provided with the sleeve pipe, sheathed tube opening part is provided with block structure, the intraductal sealed steel ball that is provided with of cover, be provided with compression spring between sealed steel ball and the block structure, be provided with the logical groove that is linked together with sheathed tube inside in the regulation pole, the right side opening that sealed steel ball will lead to the groove seals, be provided with the gas release hole on the sleeve pipe, be provided with the air inlet on the valve body: the plugging structure comprises a sealing cover, the sealing cover is connected with the sleeve through a first thread structure, and the first thread structure comprises an internal thread arranged on the sealing cover and an external thread arranged on the sleeve.
Further, a first exhaust hole is formed in the middle of the sealing cover.
Further, the cross section of the sealing cover is square for convenient screwing.
Further, the block structure still includes the blanking cover, and the blanking cover passes through second helicitic texture and bushing, and second helicitic texture is including setting up the external screw thread on the blanking cover and setting up the internal thread on the sleeve pipe, the blanking cover is located the outside of blanking cover and the blanking cover supports and leans on the blanking cover.
Further, a second vent hole is formed in the blocking cover.
Furthermore, the inner side of the sealing cover is provided with a convex edge which is abutted against the blocking cover.
Further, the cross section of the blocking cover is square which is convenient to screw.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses change the traditional welding mounting means of block structure into screw thread mounting means, make things convenient for maintenance, the maintenance in later stage, provide very big facility for the staff.
Drawings
FIG. 1 is a schematic diagram of a constant pressure air release valve of an oil well in the prior art;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 2, this embodiment the oil well constant pressure bleed valve, including valve body 1, adjust pole 2 and sealed steel ball 3, be provided with through-hole 4 in the valve body 1, adjust pole 2 and 4 threaded connection of through-hole, the right side of valve body 1 is provided with sleeve pipe 5, the opening part of sleeve pipe 5 is provided with the block structure, be provided with sealed steel ball 3 in the sleeve pipe 5, be provided with compression spring 6 between sealed steel ball 3 and the block structure, be provided with logical groove 7 that is linked together with the inside of sleeve pipe 5 in adjusting pole 2, sealed steel ball 3 seals the right side opening that leads to groove 7, be provided with air bleed hole 8 on the sleeve pipe 5, be provided with air inlet 9 on the valve body 1, be provided with the inlet port 10 that is used for intercommunication air inlet 9 and logical groove 7 on adjusting pole 2, above structure is prior art, concrete.
The utility model discloses make the improvement of structure with block structure's mounting means:
as shown in fig. 2, in the first embodiment, the blocking structure includes a sealing cover 11, the sealing cover 11 is connected to the casing 5 through a first thread structure 12, the first thread structure 12 includes an internal thread provided on the sealing cover 11 and an external thread provided on the casing 5, a mounting edge is provided on the sealing cover 11 in cooperation with the compression spring 6, the sealing cover 11 may be a completely closed structure, and a first vent hole 11a may also be provided in the middle of the sealing cover 11, in addition, the cross section of the sealing cover 11 is square for facilitating screwing, such as a regular hexagon, etc., and by setting the above screwing structure, the later maintenance and repair are facilitated, and great convenience is provided for the worker.
In a second embodiment, as shown in fig. 3, the plugging structure comprises a cap 11 and a plug 13, the cap 11 is connected with the sleeve 5 through a first thread structure 12, the first thread structure 12 comprises an internal thread arranged on the cap 11 and an external thread arranged on the sleeve 5, the plug 13 is connected with the sleeve 5 through a second thread structure 14, the second thread structure 14 comprises an external thread arranged on the plug 13 and an internal thread arranged on the sleeve 5, the cap 11 is located outside the plug 13 and abuts against the plug 13, the reliability of the whole structure is increased through the cooperation of the cap 11 and the plug 13, the loose condition during the use process is avoided, the plug 13 can be a closed structure, or a second vent hole 13a can be arranged on the plug 13, the second vent hole 13a cooperates with the first vent hole 11a to form a coherent vent structure, and the air exhaust action is completed by matching with the air vent 8.
The inner side of the cover 11 is provided with a protruding edge 11b, and the protruding edge 11b abuts against the block cover 13.
The cross section of the plug 13 is square, such as regular hexagon, etc., which is convenient for screwing.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. Oil well level pressure bleed valve, including the valve body, adjust pole and sealed steel ball, be provided with the through-hole in the valve body, adjust pole and through-hole threaded connection, the right side of valve body is provided with the sleeve pipe, sheathed tube opening part is provided with block structure, the intraductal sealed steel ball that is provided with of cover, be provided with compression spring between sealed steel ball and the block structure, be provided with the logical groove that is linked together with sheathed tube inside in the regulation pole, the right side opening that sealed steel ball will lead to the groove seals, be provided with the gas release hole on the sleeve pipe, be provided with the air inlet on the valve body: the plugging structure comprises a sealing cover, the sealing cover is connected with the sleeve through a first thread structure, and the first thread structure comprises an internal thread arranged on the sealing cover and an external thread arranged on the sleeve.
2. The oil well constant pressure purge valve according to claim 1, wherein: and a first exhaust hole is formed in the middle of the sealing cover.
3. The oil well constant pressure purge valve according to claim 1, wherein: the cross section of the sealing cover is square which is convenient to screw.
4. The oil well constant pressure purge valve according to claim 1, wherein: the plugging structure further comprises a plugging cover, the plugging cover is connected with the sleeve through a second threaded structure, the second threaded structure comprises an external thread arranged on the plugging cover and an internal thread arranged on the sleeve, and the plugging cover is located on the outer side of the plugging cover and abutted against the plugging cover.
5. The oil well constant pressure purge valve according to claim 4, wherein: and a second exhaust hole is formed in the blocking cover.
6. The oil well constant pressure purge valve according to claim 4, wherein: the inner side of the sealing cover is provided with a convex edge which is abutted against the blocking cover.
7. The oil well constant pressure purge valve according to claim 4, wherein: the cross section of the plug cover is square which is convenient to screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054750.4U CN212376631U (en) | 2020-06-10 | 2020-06-10 | Constant pressure air release valve for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054750.4U CN212376631U (en) | 2020-06-10 | 2020-06-10 | Constant pressure air release valve for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212376631U true CN212376631U (en) | 2021-01-19 |
Family
ID=74180325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021054750.4U Active CN212376631U (en) | 2020-06-10 | 2020-06-10 | Constant pressure air release valve for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212376631U (en) |
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2020
- 2020-06-10 CN CN202021054750.4U patent/CN212376631U/en active Active
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