CN215332745U - Connecting flange of petroleum wellhead device - Google Patents
Connecting flange of petroleum wellhead device Download PDFInfo
- Publication number
- CN215332745U CN215332745U CN202120542811.XU CN202120542811U CN215332745U CN 215332745 U CN215332745 U CN 215332745U CN 202120542811 U CN202120542811 U CN 202120542811U CN 215332745 U CN215332745 U CN 215332745U
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- annular groove
- flange
- pouring
- connecting flange
- annular
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Abstract
The utility model relates to the technical field of connecting flanges, in particular to a connecting flange of an oil wellhead device, which comprises a first connecting flange and a second connecting flange, wherein a first annular groove and a second annular groove are formed in the end surface of the right side of the first connecting flange; third annular groove and fourth annular groove have been seted up to second flange's left side terminal surface, the third annular groove is located the inboard of fourth annular groove, be equipped with first annular sealing rubber between third annular groove and the first annular groove, be equipped with second annular sealing rubber between fourth annular groove and the second annular groove, this oil wellhead assembly's flange, can effectively improve the leakproofness of two flange joints through first annular sealing rubber and second annular sealing rubber, ensure the condition that can not take place liquid leakage.
Description
Technical Field
The utility model relates to the technical field of connecting flanges, in particular to a connecting flange of a petroleum wellhead device.
Background
In oil drilling, a device which is arranged at a wellhead and used for controlling the pressure and the direction of fluid, sealing oil pipes, casings and annular spaces of the casings on each layer is adopted, and a connecting flange is mostly used at the connecting position of pipelines. Most only place a sealing rubber and be used for sealed between two flange now, long-time the back of using, the leakproofness of flange junction can reduce to most direct and pipeline welded fastening of flange now, also have the hidden danger in the steadiness of its junction after long-time the use. In view of this, we propose a coupling flange for a petroleum wellhead.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connecting flange of an oil wellhead device, and aims to solve the problems that in the background art, only one sealing rubber is arranged between two connecting flanges for sealing, the sealing performance of the connecting part of the connecting flanges is reduced after long-time use, the existing connecting flanges are directly welded and fixed with a pipeline, and hidden danger exists in the stability of the connecting part after long-time use.
In order to achieve the purpose, the utility model provides the following technical scheme:
a connecting flange of an oil wellhead device comprises a first connecting flange and a second connecting flange, wherein a first annular groove is formed in the end face, close to the edge of an inner wall, of the right side of the first connecting flange, a second annular groove is formed in the end face, close to the outer edge of the first annular groove, of the right side of the first connecting flange, the first annular groove is located on the inner side of the second annular groove, three positioning rods which are arranged on the circumferential end face, close to the outer edge of the second annular groove, of the right side of the first connecting flange are provided with through holes a, six through holes a are formed in the position, close to the outer edge, of the right side of the first connecting flange, the through holes a are distributed in an annular array, a screw rod is movably connected into each through hole a, a first connecting pipe is arranged on the left side of the first connecting flange, a first pouring bin is arranged in the middle of the first connecting pipe, and a first pouring pipe is arranged at the top of the outer wall of the first pouring bin, the first pouring pipe is communicated with the inside of the first connecting pipe, a third annular groove is formed in the end face, close to the edge of the inner wall, of the left side of the second connecting flange, a first annular sealing rubber is arranged between the third annular groove and the first annular groove, a fourth annular groove is formed in the end face, close to the outer edge of the third annular groove, of the left side of the second connecting flange, the third annular groove is located on the inner side of the fourth annular groove, a second annular sealing rubber is arranged between the fourth annular groove and the second annular groove, three positioning holes which are arranged at equal intervals are formed in the circumferential end face, close to the outer edge, of the left side of the second connecting flange, six through holes b which are arranged at equal intervals are formed in the circumferential end face, close to the outer edge, of the second connecting flange, the end portion of the screw rod sequentially penetrates through the through holes a and the through holes b and is in threaded connection with a fastening nut, the right side of the second connecting flange is provided with a second connecting pipe, the middle of the second connecting pipe is provided with a second pouring bin, the top of the outer wall of the second pouring bin is provided with a second pouring pipe, and the second pouring pipe is communicated with the inside of the second pouring bin.
Preferably, the end of the first pouring tube remote from the first pouring tube is threadedly connected with a first sealing cap.
Preferably, the end of the second pouring tube remote from the second pouring tube is threadedly connected with a second sealing cap.
Preferably, the first annular groove and the third annular groove are the same in shape and size, and two sides of the first annular sealing rubber are respectively inserted into the first annular groove and the third annular groove.
Preferably, the second annular groove and the fourth annular groove are the same in shape and size, and two sides of the second annular sealing rubber are respectively inserted into the second annular groove and the fourth annular groove.
Preferably, the positioning rod is movably inserted into the positioning hole.
Compared with the prior art, the utility model has the beneficial effects that:
this oil wellhead assembly's flange can effectively improve the leakproofness of junction between first flange and the second flange through first annular sealing rubber and second annular sealing rubber, ensures not to take place the condition of liquid leakage, can further fix the position of pipeline and connecting pipe through the first pouring storehouse and the second pouring storehouse that set up, ensures the stability of being connected of pipeline and connecting pipe.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a first connecting flange according to the present invention;
fig. 4 is a schematic structural view of a second connecting flange according to the present invention.
In the figure: the sealing device comprises a first connecting flange 1, a first annular groove 10, a second annular groove 11, a through hole a12, a positioning rod 13, a first connecting pipe 14, a first pouring bin 140, a first pouring pipe 141, a first sealing cap 1410, a second connecting flange 2, a third annular groove 20, a fourth annular groove 21, a through hole b22, a positioning hole 23, a second connecting pipe 24, a second pouring bin 240, a second pouring pipe 241, a second sealing cap 2410, first annular sealing rubber 3, second annular sealing rubber 4, a screw rod 5, a fastening nut 6 and a pipeline 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-4, the present invention provides a technical solution:
a connecting flange of a petroleum wellhead device comprises a first connecting flange 1 and a second connecting flange 2, a first annular groove 10 is formed in the end face, close to the edge of an inner wall, of the right side of the first connecting flange 1, a second annular groove 11 is formed in the end face, close to the outer edge of the first annular groove 10, of the right side of the first connecting flange 1, the first annular groove 10 is located on the inner side of the second annular groove 11, three positioning rods 13 which are arranged at equal intervals are arranged on the circumferential end face, close to the outer edge of the second annular groove 11, of the right side of the first connecting flange 1, six through holes a12 which are arranged at equal intervals are formed in the circumferential end face, close to the outer edge, of the right side of the first connecting flange 1, and a screw 5 is movably connected in the through holes a 12; first connecting flange 1's left side is equipped with first connecting pipe 14 for connecting tube 7, and the middle part of first connecting pipe 14 is equipped with first pouring storehouse 140, and the top of first pouring storehouse 140 outer wall is equipped with first pouring pipe 141, and first pouring pipe 141 communicates with the inside of first connecting pipe 14, pours liquid into through first pouring pipe 141 in to first pouring storehouse 140 to make pipeline 7 and first connecting pipe 14 further fixed position. Third annular groove 20 has been seted up to the left side of second flange 2 and the terminal surface that is close to the inner wall edge, is equipped with first annular sealing rubber 3 between third annular groove 20 and the first annular groove 10, and fourth annular groove 21 has been seted up to the left side of second flange 2 and the terminal surface that is close to third annular groove 20 outward flange, and third annular groove 20 is located fourth annular groove 21's inboard, is equipped with second annular sealing rubber 4 between fourth annular groove 21 and the second annular groove 11. The sealing performance of the joint of the two connecting flanges can be effectively improved through the first annular sealing rubber 4 and the second annular sealing rubber 5, and the situation of liquid leakage is ensured not to occur. The left side of the second connecting flange 2 and the peripheral end face close to the outer edge of the fourth annular groove 21 are provided with three positioning holes 23 arranged at equal intervals, the left side of the second connecting flange 2 and the peripheral end face close to the outer edge are provided with six through holes b22 arranged at equal intervals, and the end part of the screw rod 5 sequentially penetrates through the through holes a12 and the through holes b22 and is in threaded connection with the fastening screw cap 6. The first connecting flange 1 and the second connecting flange 2 are fixed through a screw rod 5 and a fastening nut 6; the right side of the second connecting flange 2 is provided with a second connecting pipe 24, the middle part of the second connecting pipe 24 is provided with a second pouring bin 240, the top of the outer wall of the second pouring bin 240 is provided with a second pouring pipe 241, and the second pouring pipe 241 is communicated with the inside of the second pouring bin 240.
In this embodiment, a first sealing cap 1410 is screwed on the end of the first pouring tube 141 far from the first pouring tube 141, and the first sealing cap 1410 is screwed on after pouring to seal the first pouring tube 141, so as to prevent rainwater from entering the first pouring bin 140.
Specifically, a second sealing cap 2410 is connected to the end part, far away from the second pouring pipe 241, of the second pouring pipe 241 in a threaded manner, the second sealing cap 2410 is screwed on after pouring, the second pouring pipe 241 is sealed, and rainwater is prevented from entering the second pouring bin 240.
Further, the shape and size of the first annular groove 10 are the same as those of the third annular groove 20, the two sides of the first annular sealing rubber 3 are respectively inserted into the first annular groove 10 and the third annular groove 20, the depth of the first annular groove 10 is half of the width of the first annular sealing rubber 3, and the two sides of the inner wall of the first annular groove 10 are respectively attached to the outer wall and the inner wall of the first annular sealing rubber 3, so that the sealing performance is ensured.
Further, the shape and size of the second annular groove 11 are the same as those of the fourth annular groove 21, the two sides of the second annular sealing rubber 4) are respectively inserted into the second annular groove 11 and the fourth annular groove 21, the depth of the second annular groove 11 is half of the width of the second annular sealing rubber 4, the two sides of the inner wall of the second annular groove 11 are respectively attached to the outer wall and the inner wall of the second annular sealing rubber 4, and the sealing performance is further ensured.
Further, locating lever 13 can the activity peg graft in locating hole 23, can the person of facilitating the use align first flange 1 and second flange 2 through locating lever 13 to it is fixed to be convenient for the screw rod 5 is perforated.
When the connecting flange of the oil wellhead device of the embodiment is used, a user firstly inserts the pipeline 7 into the first connecting pipe 14, welds the joint of the pipeline 7 and the first connecting pipe 14, then injects pouring liquid into the first pouring bin 140 through the first pouring pipe 141, so that the positions of the pipeline 7 and the first connecting pipe 14 are further fixed, thereby ensuring the connection stability of the pipeline 7 and the first connecting pipe 14, then connects and fixes another pipeline 7 and the second connecting pipe 24 in the same way, then inserts the first annular sealing rubber 3 into the first annular groove 10, inserts the second annular sealing rubber 4 into the second annular groove 11, then connects the second connecting flange 2 with the first connecting flange 1 through the positioning rod 13 and the positioning hole 23, at this time, the other half of the first annular sealing rubber 3 is inserted into the third annular groove 20, the other half of the second annular sealing rubber 4 is inserted into the fourth annular groove 21, the sealing performance of the joint of the second connecting flange 2 and the first connecting flange 1 is ensured under the action of the first annular sealing rubber 3 and the second annular sealing rubber 4, and finally the second connecting flange 2 and the first connecting flange 1 are fixed through the screw rod 5 and the fastening screw cap 6.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A connecting flange of a petroleum wellhead device is characterized in that: comprises a first connecting flange (1) and a second connecting flange (2), wherein a first annular groove (10) is formed in the end face, close to the edge of the inner wall, of the right side of the first connecting flange (1), a second annular groove (11) is formed in the end face, close to the outer edge of the first annular groove (10), of the right side of the first connecting flange (1), the first annular groove (10) is located in the inner side of the second annular groove (11), three positioning rods (13) which are arranged at equal intervals are arranged on the circumferential end face, close to the outer edge of the second annular groove (11), of the right side of the first connecting flange (1), six through holes a (12) which are arranged at equal intervals are formed in the circumferential end face, close to the outer edge, of the right side of the first connecting flange (1), a screw rod (5) is movably connected in each through hole a (12), and a first connecting pipe (14) is arranged on the left side of the first connecting flange (1), a first pouring bin (140) is arranged in the middle of the first connecting pipe (14), a first pouring pipe (141) is arranged at the top of the outer wall of the first pouring bin (140), the first pouring pipe (141) is communicated with the inside of the first connecting pipe (14), a third annular groove (20) is formed in the left side of the second connecting flange (2) and in the end face close to the edge of the inner wall, a first annular sealing rubber (3) is arranged between the third annular groove (20) and the first annular groove (10), a fourth annular groove (21) is formed in the left side of the second connecting flange (2) and in the end face close to the outer edge of the third annular groove (20), the third annular groove (20) is located on the inner side of the fourth annular groove (21), and a second annular sealing rubber (4) is arranged between the fourth annular groove (21) and the second annular groove (11), the left side of second flange (2) and the circumference terminal surface that is close to fourth annular recess (21) outward flange set up three equidistant locating hole (23) of arranging, the left side of second flange (2) and the circumference terminal surface that is close to the outward flange set up six equidistant through-hole b (22) of arranging, the tip of screw rod (5) passes through-hole a (12) and through-hole b (22) and threaded connection has fastening nut (6) in proper order, the right side of second flange (2) is equipped with second connecting pipe (24), the middle part of second connecting pipe (24) is equipped with second pouring storehouse (240), the top of second pouring storehouse (240) outer wall is equipped with second pouring pipe (241), the inside intercommunication of second pouring pipe (241) and second pouring storehouse (240).
2. A coupling flange for a petroleum wellhead assembly according to claim 1, wherein: the end of the first casting tube (141) remote from the first casting tube (141) is threadedly connected with a first sealing cap (1410).
3. A coupling flange for a petroleum wellhead assembly according to claim 1, wherein: the end of the second pouring tube (241) far away from the second pouring tube (241) is connected with a second sealing cap (2410) in a threaded mode.
4. A coupling flange for a petroleum wellhead assembly according to claim 1, wherein: the first annular groove (10) and the third annular groove (20) are the same in shape and size, and two sides of the first annular sealing rubber (3) are respectively connected with the first annular groove (10) and the third annular groove (20) in an inserting mode.
5. A coupling flange for a petroleum wellhead assembly according to claim 1, wherein: the shape and size of the second annular groove (11) and the fourth annular groove (21) are the same, and two sides of the second annular sealing rubber (4) are respectively inserted into the second annular groove (11) and the fourth annular groove (21).
6. A coupling flange for a petroleum wellhead assembly according to claim 1, wherein: the positioning rod (13) can be movably inserted into the positioning hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120542811.XU CN215332745U (en) | 2021-03-16 | 2021-03-16 | Connecting flange of petroleum wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120542811.XU CN215332745U (en) | 2021-03-16 | 2021-03-16 | Connecting flange of petroleum wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215332745U true CN215332745U (en) | 2021-12-28 |
Family
ID=79583808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120542811.XU Expired - Fee Related CN215332745U (en) | 2021-03-16 | 2021-03-16 | Connecting flange of petroleum wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215332745U (en) |
-
2021
- 2021-03-16 CN CN202120542811.XU patent/CN215332745U/en not_active Expired - Fee Related
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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: 20211228 |