CN205225143U - Scour prevention's geothermol power well head assembly - Google Patents
Scour prevention's geothermol power well head assembly Download PDFInfo
- Publication number
- CN205225143U CN205225143U CN201520850751.2U CN201520850751U CN205225143U CN 205225143 U CN205225143 U CN 205225143U CN 201520850751 U CN201520850751 U CN 201520850751U CN 205225143 U CN205225143 U CN 205225143U
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- China
- Prior art keywords
- valve
- flashboard
- casing head
- well head
- head assembly
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an oil machinery specifically is a scour prevention's geothermol power well head assembly, it includes casing head, transition joint, main valve and side valve, flange joint is all adopted in connection between casing head, transition joint, main valve and the side valve, wherein, casing head top end has inlayed sealed backing ring and this top is connected bottom transition joint, and the transition joint top is connected with the main valve, and there are two side valves, characterized by in casing head bottom both sides symmetric connection respectively: still including the direction bush, the direction bush inlays in casing head top port, and the head section of direction bush is stretched out the flange tip and is higher than sealed backing ring place plane. This geothermal well mouth assembly has scour prevention, stand wear and tear, corrosion resistant advantage, uses as well head machinery in the thermal environment with can adapting to the complicacy.
Description
Technical field
The utility model relates to field of petroleum machinery, specifically a kind of underground heat well head assembly of protection against erosion.
Background technology
Along with the whole world is to the growth of clear energy sources demand, exploitation and the use of geothermal energy are more and more ordinary, and reach 400 DEG C and underground has a large amount of fine sand stone exists due to geotemperature, therefore, underground heat well head and pipeline need just to have heat-resisting, protection against erosion, corrosion resistant requirement.
Utility model content
The purpose of this utility model is, provides a kind of and meets the well head assembly used in intricately thermal environment.
In order to achieve the above object, the utility model is achieved in that
A underground heat well head assembly for protection against erosion, it comprises casing head, transit joint, main valve and side valve, and described casing head, transit joint, connection between main valve and side valve all adopt Flange joint; Wherein, casing head top end face is embedded with gasket ring and this top is connected with bottom transit joint, transit joint top is connected with main valve, casing head two bottom sides is symmetrically connected with two side valves respectively, also comprise pilot bushing, pilot bushing is embedded in casing head top port, and the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
The underground heat well head assembly of described protection against erosion, main valve and side valve are high-temperature expansion sluice valve, and described high temperature expansion valve comprises valve gap, valve rod, valve body, flashboard and valve seat; Stem bottom is connected with flashboard, valve rod, flashboard are located in valve body, body top is stamped valve gap, valve stem top stretches out in valve gap, described flashboard comprises flashboard great Ye, flashboard leaflet, and valve seat is located in valve body, rotation valve rod and then drive flashboard great Ye, flashboard leaflet movement contact with valve seat and realize sealing, be provided with a seal cavity between valve rod and valve gap, in this space, be filled with soft sealing material; Valve seat, flashboard great Ye, flashboard leaflet have cobalt-base alloys extexine, and valve rod has molybdenum bisuphide extexine.
The underground heat well head assembly of described protection against erosion, high-temperature expansion sluice valve also comprises injection moulding valve, described injection moulding valve to be located on valve gap and to be communicated with seal cavity, and the soft sealing material of filling between valve rod and valve gap is graphite, and graphite is sent in seal cavity by injection moulding valve.
The underground heat well head assembly of described protection against erosion, the valve body of high-temperature expansion sluice valve has safety relief valve.
The underground heat well head assembly of described protection against erosion, the valve body of high-temperature expansion sluice valve is also provided with blowoff valve, and described blowoff valve is positioned at the bottom of valve body and is positioned at the below of flashboard and valve seat.
This geothermal well mouth assembly has following advantage:
1, select graphite material as soft sealed packing, by injection moulding valve regularly to injection graphite bar, thus solution by no means soft sealing material to run off at the scene the valve leak problem that causes.
2, there is a large amount of sand grains in underground heat well head medium, to valve door sealing surfaces, there is antiscour requirement; This geothermal well mouth assembly adopts cobalt-base alloys built-up welding, solve the problem of bi-material built-up welding crack resistence at different temperatures, compared with the WC of surface spraying one deck 0.15 millimeter, application life obviously extends, and surface spraying layer in use has and also can not produce obscission.
3, each valve of this geothermal well mouth assembly adopts expansion type structure design, by stem surface spraying molybdenum bisuphide, improves the finish of valve rod and flashboard screw-driven, solves expansion sluice valve operational torque power.
4, with the addition of protection lining at the gasket ring place of casing head, avoid and wash away phenomenon, effectively improve gasket ring application life.
Accompanying drawing explanation
Fig. 1 is the structural representation of this geothermal well mouth assembly.
Fig. 2 is the structural representation of high temperature expansion valve.
Fig. 3 is casing head and transit joint junction partial enlarged drawing.
Detailed description of the invention
The utility model is further illustrated below by way of specific embodiment.
As shown in Figure 1, Figure 3, a kind of underground heat well head assembly of protection against erosion, it comprises casing head 1, transit joint 2, main valve 3 and side valve 4, and described casing head 1, transit joint 2, connection between main valve 3 and side valve 4 all adopt Flange joint; Wherein, casing head 1 top end face is embedded with gasket ring 5 and this casing head top is connected with bottom transit joint 2, transit joint 2 top is connected with main valve 3, casing head 1 two bottom sides is symmetrically connected with two side valves 4 respectively, also comprise pilot bushing 21, pilot bushing 21 is embedded in casing head 1 top port, and the head section of pilot bushing 21 stretches out adpting flange end and higher than gasket ring 5 place plane.
As shown in Figure 2, the underground heat well head assembly of described protection against erosion, main valve 3 and side valve 4 are high-temperature expansion sluice valve, and described high temperature expansion valve comprises valve gap 341, valve rod 342, valve body 345, flashboard 344 and valve seat 343; Be connected with flashboard 344 bottom valve rod 342, valve rod 342, flashboard 344 are located in valve body 345, valve gap 341 is stamped at valve body 345 top, valve rod 342 top is stretched out in valve gap 341, described flashboard 344 comprises flashboard great Ye 3441, flashboard leaflet 3442, valve seat 343 is located in valve body 345, rotation valve rod 342 so drive flashboard great Ye 3441, flashboard leaflet 3442 moves and contacts with valve seat 343 and realize sealing, be provided with a seal cavity between valve rod 342 and valve gap 341, in this space, be filled with soft sealing material 349; Valve seat 343, flashboard great Ye 3441, flashboard leaflet 3442 have cobalt-base alloys extexine, and valve rod 342 has molybdenum bisuphide extexine.
The described heavy-caliber high-temperature expansion valve for underground heat well head, also comprise injection moulding valve 346, described injection moulding valve 346 to be located on valve gap 341 and to be communicated with seal cavity, and the soft sealing material 349 of filling between valve rod 342 and valve gap 341 is graphite, and graphite is sent in seal cavity by injection moulding valve.
The described heavy-caliber high-temperature expansion valve for underground heat well head, valve body 1 has safety relief valve 347.
The described heavy-caliber high-temperature expansion valve for underground heat well head, valve body 341 is also provided with blowoff valve 348, and described blowoff valve 348 is positioned at the bottom of valve body 343 and is positioned at the below of flashboard 344 and valve seat 343.
This geothermal well mouth assembly has following advantage:
1, select graphite material as soft sealed packing, by injection moulding valve regularly to injection graphite bar, thus solution by no means soft sealing material to run off at the scene the valve leak problem that causes.
2, there is a large amount of sand grains in underground heat well head medium, to valve door sealing surfaces, there is antiscour requirement; This geothermal well mouth assembly adopts cobalt-base alloys built-up welding, solve the problem of bi-material built-up welding crack resistence at different temperatures, compared with the WC of surface spraying one deck 0.15 millimeter, application life obviously extends, and surface spraying layer in use has and also can not produce obscission.
3, each valve of this geothermal well mouth assembly adopts expansion type structure design, by stem surface spraying molybdenum bisuphide, improves the finish of valve rod and flashboard screw-driven, solves expansion sluice valve operational torque power.
4, with the addition of protection lining at the gasket ring place of casing head, avoid and wash away phenomenon, effectively improve gasket ring application life.
Claims (5)
1. a underground heat well head assembly for protection against erosion, it comprises casing head, transit joint, main valve and side valve, and described casing head, transit joint, connection between main valve and side valve all adopt Flange joint; Wherein, casing head top end face is embedded with gasket ring and this top is connected with bottom transit joint, transit joint top is connected with main valve, casing head two bottom sides is symmetrically connected with two side valves respectively, it is characterized in that: also comprise pilot bushing, pilot bushing is embedded in casing head top port, and the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
2. the underground heat well head assembly of protection against erosion according to claim 1, it is characterized in that: main valve and side valve are high-temperature expansion sluice valve, described high temperature expansion valve comprises valve gap, valve rod, valve body, flashboard and valve seat; Stem bottom is connected with flashboard, valve rod, flashboard are located in valve body, body top is stamped valve gap, valve stem top stretches out in valve gap, described flashboard comprises flashboard great Ye, flashboard leaflet, and valve seat is located in valve body, rotation valve rod and then drive flashboard great Ye, flashboard leaflet movement contact with valve seat and realize sealing, be provided with a seal cavity between valve rod and valve gap, in this space, be filled with soft sealing material; Valve seat, flashboard great Ye, flashboard leaflet have cobalt-base alloys extexine, and valve rod has molybdenum bisuphide extexine.
3. the underground heat well head assembly of protection against erosion according to claim 2, it is characterized in that: high-temperature expansion sluice valve also comprises injection moulding valve, described injection moulding valve to be located on valve gap and to be communicated with seal cavity, the soft sealing material of filling between valve rod and valve gap is graphite, and graphite is sent in seal cavity by injection moulding valve.
4. the underground heat well head assembly of protection against erosion according to claim 2, is characterized in that: the valve body of high-temperature expansion sluice valve has safety relief valve.
5. the underground heat well head assembly of protection against erosion according to claim 2, is characterized in that: the valve body of high-temperature expansion sluice valve is also provided with blowoff valve, and described blowoff valve is positioned at the bottom of valve body and is positioned at the below of flashboard and valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850751.2U CN205225143U (en) | 2015-10-30 | 2015-10-30 | Scour prevention's geothermol power well head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850751.2U CN205225143U (en) | 2015-10-30 | 2015-10-30 | Scour prevention's geothermol power well head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225143U true CN205225143U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850751.2U Expired - Fee Related CN205225143U (en) | 2015-10-30 | 2015-10-30 | Scour prevention's geothermol power well head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639949A (en) * | 2015-10-30 | 2017-05-10 | 上海新莲泵阀有限公司 | Anti-washout geothermal well mouth assembly |
| CN110905848A (en) * | 2019-11-15 | 2020-03-24 | 徐州三源实业有限公司 | Sealing structure of submersible pump |
-
2015
- 2015-10-30 CN CN201520850751.2U patent/CN205225143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639949A (en) * | 2015-10-30 | 2017-05-10 | 上海新莲泵阀有限公司 | Anti-washout geothermal well mouth assembly |
| CN110905848A (en) * | 2019-11-15 | 2020-03-24 | 徐州三源实业有限公司 | Sealing structure of submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |