CN215332747U - Multiple sealing combined casing head device - Google Patents
Multiple sealing combined casing head device Download PDFInfo
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- CN215332747U CN215332747U CN202121616174.2U CN202121616174U CN215332747U CN 215332747 U CN215332747 U CN 215332747U CN 202121616174 U CN202121616174 U CN 202121616174U CN 215332747 U CN215332747 U CN 215332747U
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- casing head
- hanger
- casing
- ring
- block
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Abstract
The utility model belongs to the technical field of casing heads, and particularly relates to a multi-seal combined casing head device which comprises a plurality of casing heads, wherein a casing penetrating through the inner cavity of the casing head is arranged in each casing head, one side of each casing head is connected with a pressure gauge through a pressure gauge stop valve, one side of each casing head is connected with a manual valve through a connecting flange, the connecting flange corresponds to the pressure gauge stop valve, a fixing ring is arranged at the upper opening of each casing head, a hanger is arranged below each fixing ring, and a fixing mechanism is arranged between the casings at the upper opening of each hanger. The service life of the device is longer.
Description
Technical Field
The utility model relates to the technical field of casing heads, in particular to a multi-seal combined casing head device.
Background
With the rapid development of national economy in China. The need for crude oil and natural gas has multiplied, and more devices for controlling oil and gas pipelines have been developed and constructed, with the casing head being the device component that connects the uppermost casing head to the tubing head device to suspend the casing and the annulus between the casings. Including casing, hanger and seal assemblies, etc. The function is to hang the casing, the downhole tool and the sealing sleeve annular space which are put into the well.
The following problems exist in the prior art:
most of casing heads in the market at present all adopt rubber material to use as seal assembly, but rubber material is difficult to high temperature resistant and can make sealing performance descend because of ageing after using for a long time.
Most of casing heads on the market are easy to separate from the hanger, and are not favorable for fixing the casing.
SUMMERY OF THE UTILITY MODEL
Objects of the utility model
In order to solve the technical problems in the background art, the utility model provides a multi-seal combined casing head device which has the characteristics of good sealing effect and capability of avoiding the separation between the casing head and a hanger.
(II) technical scheme
In order to solve the technical problems, the utility model provides a multi-seal combined casing head device, which comprises a plurality of casing heads, wherein a casing penetrating through the inner cavity of the casing head is arranged in each casing head, one side of each casing head is connected with a pressure gauge through a pressure gauge stop valve, one side of each casing head is connected with a manual valve through a connecting flange, the connecting flange corresponds to the pressure gauge stop valve, a fixing ring is arranged at the upper opening of each casing head, a hanger is arranged below each fixing ring, a fixing mechanism is arranged between the casings and at the upper opening of each hanger, each fixing mechanism comprises a limiting frame and a fixing bolt, a limiting groove is formed in the top of each hanger, each limiting frame is sleeved outside the corresponding casing and arranged in the corresponding limiting groove, each fixing bolt is inserted into each hanger and connected with the corresponding limiting frame in a threaded manner, an O-shaped sealing ring sleeved outside the corresponding casing is embedded in the inner wall of each hanger, the utility model discloses a seal structure of hanger, including hanger and casing head, be equipped with between the upper portion inner wall of hanger and the casing head and be connected the end ring, be equipped with sealing mechanism between the upper portion inner wall of connection end ring and the hanger, sealing mechanism includes clamp bolt, spring, slide bar, slider, goes up sealed piece and lower sealed piece, the spout has been seted up to the upper portion outer wall symmetry of hanger, the slide bar is installed in the spout, the spring housing is established in the slide bar outside, and the lower extreme of spring is connected with the cover and establishes the slider on the slide bar, slider one end is connected with sealed piece, it is equipped with down sealed piece to go up sealed piece lower extreme, the top of going up sealed piece is connected with clamp bolt, and clamp bolt runs through solid fixed ring.
Preferably, the fixing ring and the casing head and the fixing ring and the hanger are connected in a detachable connection mode.
Preferably, go up sealed piece and sealed piece opposite face down and be the wave shape face, and both are metal material and mutual adaptation, go up the dive interface of sealed piece and sealed piece down and be the ring shape.
Preferably, the opposite surface inlays respectively between last sealed piece and the lower sealed piece and is equipped with the insulating layer of looks adaptation, be equipped with the sealed pad of inserting formula in the insulating layer.
Preferably, the restricting frame can rotate ninety degrees in the restricting slot, and the upper threaded hole of the restricting frame corresponds to the fixing bolt after the rotation.
Preferably, the bottom in the sliding groove is provided with a high-temperature-resistant protective pad sleeved outside the sliding rod.
The technical scheme of the utility model has the following beneficial technical effects: in the utility model, the device adopts a multi-seal combined mechanism, so that the material and the cost are saved, the sleeve can be fixed, the separation between the sleeve and the hanger is avoided, meanwhile, the sealing mechanism improves the sealing property of the device, the influence of high-temperature corrosion on the sealing property is avoided, and the service life of the device is longer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of B in FIG. 2 according to the present invention;
fig. 5 is a schematic top view of the hanger of the present invention.
Reference numerals:
1. a casing head; 2. a sleeve; 3. a connecting flange; 4. a manual valve; 5. a pressure gauge stop valve; 6. a pressure gauge; 7. a fixing ring; 8. a hanger; 9. an O-shaped sealing ring; 10. a connecting bottom ring; 11. fixing the bolt; 12. a hold-down bolt; 13. a spring; 14. a slide bar; 15. a slider; 16. an upper sealing block; 17. a lower seal block; 18. a thermal insulation layer; 19. a gasket; 20. a chute; 21. a restraint frame; 22. a restraining groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in figures 1-5, the multi-seal combined casing head device provided by the utility model comprises a plurality of casing heads 1, a casing 2 penetrating through the inner cavity of the casing head 1 is arranged in the casing head 1, one side of the casing head 1 is connected with a pressure gauge 6 through a pressure gauge stop valve 5, one side of the casing head 1 is connected with a manual valve 4 through a connecting flange 3, the connecting flange 3 corresponds to the pressure gauge stop valve 5, a fixing ring 7 is arranged on the inner side of the upper part of the casing head 1, the fixing ring 7 is sleeved on the outer side of the casing 2, a hanger 8 sleeved on the outer side of the casing 2 is arranged on the inner side of the fixing ring 7, the top of the hanger 8 is connected with the casing 2 through a fixing mechanism, the fixing mechanism comprises a limiting frame 21 and a fixing bolt 11, a limiting groove 22 is arranged on the top of the hanger 8, the limiting frame 21 is arranged in the limiting groove 22, the limiting frame 21 is sleeved on the outer side of the casing 2, one end of the fixing bolt 11 is inserted into the hanger 8 and is screwed with the restricting frame 21.
In the embodiment, the device adopts a combination mode of connecting a plurality of casing heads 1, so that the material and the cost are saved.
Between solid fixed ring 7 and the casing head 1, between solid fixed ring 7 and the hanger 8 all adopt detachable connected mode to be connected, adopt threaded connection's mode in this example to make casing head 1 and between solid fixed ring 7 and the hanger 8 convenient to detach.
The limiting frame 21 can rotate ninety degrees in the limiting groove 22, and after the limiting frame 21 rotates, two ends of the limiting frame correspond to the fixing bolts 11 respectively, so that the limiting frame can be fixed by the fixing bolts 11, the sleeve 2 is fixed, and the sleeve 2 is prevented from being easily separated from the hanger 8.
By way of example, the ring in the middle of the limiting frame 21 is a combination of two semicircular arcs and is detachable, so that it is convenient to fix it outside the casing 2 and also to detach it.
As shown in fig. 2, an O-ring 9 is embedded in the inner side wall of the hanger 8, and the O-ring 9 is connected to the outer wall of the casing 2.
In this embodiment, the sealing performance of the device is improved by using the O-ring 9.
As shown in fig. 2 and 3, a connecting bottom ring 10 is arranged below a fixing ring 7 and between a casing head 1 and a hanger 8, a sealing mechanism is arranged between the upper part of the connecting bottom ring 10 and the hanger 8, the sealing mechanism comprises a pressing bolt 12, a spring 13, a sliding rod 14, a sliding block 15, an upper sealing block 16 and a lower sealing block 17, sliding grooves 20 are symmetrically formed in the outer wall of the upper part of the hanger 8, the sliding rod 14 is installed in the sliding grooves 20, the spring 13 is sleeved outside the sliding rod 14, the lower end of the spring 13 is connected with the sliding block 15 sleeved on the sliding rod 14, one end of the sliding block 15 is connected with the upper sealing block 16, the lower end of the upper sealing block 16 is provided with the lower sealing block 17, the top of the upper sealing block 16 is connected with the pressing bolt 12, and the pressing bolt 12 penetrates through the fixing ring 7.
In this embodiment, the opposite surfaces of the upper sealing block 16 and the lower sealing block 17 are wavy surfaces, both of which are made of metal and are adapted to each other, and the top-down interface of the upper sealing block 16 and the lower sealing block 17 is circular, so that the opposite surfaces are wavy surfaces to closely adhere to each other, thereby improving the sealing performance.
Go up between sealed piece 16 and the lower sealed piece 17 opposite face inlay the insulating layer 18 that is equipped with the looks adaptation respectively, be equipped with the sealed pad 19 of inserting formula in the insulating layer 18, the insulating layer 18 that is equipped with is sealed pad 19 wherein in order to protect, avoids high temperature corruption, and sealed use of 19 of filling up cooperates the combination of sealed piece 16 and lower sealed piece 17 simultaneously, makes it multiple sealed, improves whole leakproofness.
The bottom in the chute 20 is provided with a high temperature resistant protective pad sleeved outside the sliding rod 14, so that damage to parts caused by collision is avoided.
The working principle and the using process of the utility model are as follows: firstly, a fixed ring 7 is installed at an opening at the upper part of a casing head 1 in a threaded connection mode, a hanger 8 is inserted into the casing head 1 from bottom to top from a cavity of the casing head 1, then the casing head is connected with the inner wall of the fixed ring 7, then a casing 2 penetrates through an inner cavity of the hanger 8, a limiting frame 21 is fixedly sleeved on the outer side of the casing 2, then the casing 2 is placed into a limiting groove 22 and rotated by ninety degrees, the limiting frame 21 is fixed through a fixing bolt 11, then a connecting bottom ring 10 is inserted into the cavity from the bottom end of the casing head 1, then the casing 2 is fixed through bolts at two sides, a lower sealing block 17 connected with the connecting bottom ring 10 corresponds to an upper sealing block 16, upward thrust is generated on the upper sealing block 16, the upper sealing block 16 moves downwards under the action of a spring 13, further, a sliding block 15 and the upper sealing block 16 are driven to move downwards to be attached to the lower sealing block 17, and meanwhile, a heat insulation layer 18 and a sealing gasket 19 are connected with each other, at the moment, downward force is applied to the upper sealing block 16 by twisting the pressing bolt 12, so that the upper sealing block 16 and the lower sealing block 17 are pushed to be tightly attached to realize sealing.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. Multiple sealed combination formula casing head device, including a plurality of casing head (1), be equipped with sleeve pipe (2) that run through casing head (1) inner chamber in casing head (1), one side of casing head (1) is connected with manometer (6) through manometer stop valve (5), one side of casing head (1) is connected with manual valve (4) through flange (3), and flange (3) and manometer stop valve (5) are corresponding, its characterized in that, the upper portion opening part of casing head (1) is equipped with solid fixed ring (7), the below of solid fixed ring (7) is equipped with hanger (8), the upper portion opening of hanger (8) is equipped with fixed establishment between casing pipe (2), and fixed establishment includes restriction frame (21) and fixing bolt (11), restriction groove (22) have been seted up at the top of hanger (8), the limiting frame (21) is sleeved on the outer side of the sleeve (2) and is installed in a limiting groove (22), the fixing bolt (11) is inserted into the hanger (8) and is in threaded connection with the limiting frame (21), an O-shaped sealing ring (9) sleeved on the outer side of the sleeve (2) is embedded in the inner wall of the hanger (8), a connecting bottom ring (10) is arranged between the hanger (8) and the sleeve head (1), a sealing mechanism is arranged between the inner wall of the upper portion of the connecting bottom ring (10) and the hanger (8), the sealing mechanism comprises a compression bolt (12), a spring (13), a sliding rod (14), a sliding block (15), an upper sealing block (16) and a lower sealing block (17), the outer wall of the upper portion of the hanger (8) is symmetrically provided with a sliding groove (20), the sliding rod (14) is installed in the sliding groove (20), the spring (13) is sleeved on the outer side of the sliding rod (14), the lower extreme of spring (13) is connected with slider (15) that the cover was established on slide bar (14), slider (15) one end is connected with upper seal block (16), upper seal block (16) lower extreme is equipped with down seal block (17), the top of upper seal block (16) is connected with clamp bolt (12), and clamp bolt (12) run through solid fixed ring (7).
2. The multiple-seal combined casing head device according to claim 1, wherein the fixing ring (7) and the casing head (1) and the fixing ring (7) and the hanger (8) are detachably connected.
3. The multi-seal combined casing head device according to claim 1, wherein the opposite surfaces of the upper seal block (16) and the lower seal block (17) are wavy surfaces, and both are made of metal and are matched with each other, and the top-cut interface of the upper seal block (16) and the lower seal block (17) is circular.
4. The multi-seal combined casing head device according to claim 3, wherein a heat insulation layer (18) is embedded between the upper seal block (16) and the lower seal block (17), and a gasket (19) is embedded in the heat insulation layer (18).
5. The multiple seal modular cannula head device of claim 1 wherein the restraint bracket (21) is rotatable ninety degrees in the restraint slot (22) and the upper threaded bore of the restraint bracket (21) corresponds to the anchor bolt (11) after rotation.
6. The multiple-sealing combined casing head device according to claim 1, wherein the inner bottom of the sliding groove (20) is provided with a high temperature resistant protective pad which is sleeved outside the sliding rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121616174.2U CN215332747U (en) | 2021-07-15 | 2021-07-15 | Multiple sealing combined casing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121616174.2U CN215332747U (en) | 2021-07-15 | 2021-07-15 | Multiple sealing combined casing head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215332747U true CN215332747U (en) | 2021-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121616174.2U Active CN215332747U (en) | 2021-07-15 | 2021-07-15 | Multiple sealing combined casing head device |
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| CN (1) | CN215332747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387754A (en) * | 2022-08-26 | 2022-11-25 | 江苏腾龙石化机械有限公司 | High-pressure two-stage integral casing head |
-
2021
- 2021-07-15 CN CN202121616174.2U patent/CN215332747U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387754A (en) * | 2022-08-26 | 2022-11-25 | 江苏腾龙石化机械有限公司 | High-pressure two-stage integral casing head |
| CN115387754B (en) * | 2022-08-26 | 2023-05-05 | 江苏腾龙石化机械有限公司 | High-pressure two-stage integral casing head |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multiple sealing combined casing head device Effective date of registration: 20230918 Granted publication date: 20211228 Pledgee: Industrial and Commercial Bank of China Limited Funing Branch Pledgor: YANCHENG XIONGWEI PETROCHEMICAL GENERAL MACHINERY EQUIPMENT CO.,LTD. Registration number: Y2023990000455 |