CN203808931U - Novel thermal recovery steam injection wellhead device - Google Patents
Novel thermal recovery steam injection wellhead device Download PDFInfo
- Publication number
- CN203808931U CN203808931U CN201420237181.5U CN201420237181U CN203808931U CN 203808931 U CN203808931 U CN 203808931U CN 201420237181 U CN201420237181 U CN 201420237181U CN 203808931 U CN203808931 U CN 203808931U
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- valve
- flange
- steam injection
- standby
- parallel
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Abstract
The utility model discloses a novel thermal recovery steam injection wellhead device. The novel thermal recovery steam injection wellhead device comprises an adapter flange, a side flange, an upper flange and a lower flange. The adapter flange is connected with the side flange through a small stone, the upper flange and the lower flange are connected through a large stone, the lower end of the small stone is connected with the upper flange, a center control combination valve is arranged between the small stone and the upper flange, each of the upper end of the small stone and the left end and the right end of the large stone is provided with a double-gate-disc steam injection valve, each of the double-gate-disc steam injection valves and the center control combination valve comprises a valve body and a valve rod, each valve body is internally provided with a valve seat corresponding to the valve rod, a carbon seal ring is arranged between each valve body and the corresponding valve seat, the lower end of each valve rod is connected with two gate discs, two sides of each gate disc are provided with parallel plates, and a gap adjustment device used for adjusting a gap between each two gate discs is arranged on each parallel plate. The novel thermal recovery steam injection wellhead device is simple in structure, leakage between each gate disc and the corresponding valve seat can be prevented, straining and locking of the gate discs and the valve seats can be prevented, hand wheels are small in screwing force, and consequently service lives of the valves are prolonged, and oil recovery cost is reduced.
Description
Technical field
The utility model relates to a kind of wellhead assembly, is specifically related to a kind of novel thermal recovery steam injection wellhead assembly.
Background technology
At present, common thermal recovery head valve is all to adopt single disc to seal, and the technical barrier that the gate valve of single disc exists is: the easy locking of flashboard and valve seat is pulled, and during valve switch, the dumb power of refusing of twisting of operated by handwheel is large.The encapsulant that is used for the flashboard valve seat of high-temperature high pressure valve is all graphite, and the result of use of graphite sealing material, is that other encapsulant cannot be with replacing, and its advantage is that heat resistance is high, has the features such as heat expansion.Shortcoming is there is no elasticity, and valve full tight fit that relies in assembling process is assembled, easy leakage that assembling is loose, and in actual production work, tension flashboard is easily pulled locking, has a strong impact on like this application life of valve, has increased cost for oil production.
Summary of the invention
The purpose of this utility model is exactly the defect existing for prior art, provide a kind of simple in structure, can prevent from revealing between flashboard and valve seat, prevent that flashboard and valve seat from pulling locking, the stubborn power of refusing of handwheel is little, can extend the application life of valve, reduce the novel thermal recovery steam injection wellhead assembly of cost for oil production.
Its technical scheme is: novel thermal recovery steam injection wellhead assembly, comprise adapter flange, limit flange, upper flange and lower flange, described adapter flange is connected by little four-way with the two ends of limit flange, the two ends of described upper flange and lower flange are connected by big four, the lower end of described little four-way is connected with upper flange, connecting pipe between described little four-way and upper flange is provided with middle control combination valve, the upper end of described little four-way and the left end of big four and right-hand member are respectively equipped with double disc steam injection valve, described double disc steam injection valve and middle control combination valve include valve body and valve rod, in described valve body, be provided with the valve seat corresponding with valve rod, between described valve body and valve seat, be provided with carbon seal ring, the lower end of described valve rod is all connected with two flashboards, the both sides of each flashboard are provided with the parallel-plate being parallel to each other, described parallel-plate is provided with for adjusting the lash adjusting device in gap between two flashboards, described middle control combination valve also comprises the standby valve rod be arrangeding in parallel with valve rod, in described valve body, be also provided with the standby valve seat of answering with service valve pole pair, the lower end of described standby valve rod is provided with two standby flashboards, the both sides of each standby flashboard are provided with the standby parallel-plate being parallel to each other, and are also provided with for adjusting the lash adjusting device in gap between two standby flashboards on described standby parallel-plate.
Described lash adjusting device comprises a plurality of oval pilot hole being arranged on parallel-plate, in described pilot hole, be provided with guide sleeve, in described guide sleeve, be provided with the fixed screw being fixedly connected with flashboard, the opposite face of two flashboards respectively correspondence is provided with a plurality of locating slots, in the cavity of two locating slot formation, is provided with ripple spring.
On described valve rod and standby valve rod, be equipped with handwheel.
Described pilot hole is 8-10.
The utility model compared with prior art, has the following advantages: simple in structure, this wellhead assembly can prevent from revealing between flashboard and valve seat, prevents that flashboard and valve seat from pulling locking, and it is little that handwheel is twisted the power of refusing, and can extend the application life of valve, has reduced cost for oil production.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of the utility model double disc steam injection valve;
Fig. 3 is the structural representation of controlling combination valve in the utility model.
The specific embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, novel thermal recovery steam injection wellhead assembly, comprise adapter flange 1, limit flange 2, upper flange 3 and lower flange 4, described adapter flange 1 is connected by little four-way 5 with the two ends of limit flange 2, the two ends of described upper flange 3 and lower flange 4 are connected by big four 6, the lower end of described little four-way 5 is connected with upper flange 3, connecting pipe between described little four-way 5 and upper flange 3 is provided with middle control combination valve 7, the left end of the upper end of described little four-way 5 and big four 6 and right-hand member are respectively equipped with double disc steam injection valve 8, described double disc steam injection valve 8 and middle control combination valve 7 include valve body 9 and valve rod 10, in described valve body 9, be provided with the valve seat corresponding with valve rod 10 11, between described valve body 9 and valve seat 11, be provided with carbon seal ring 12, the lower end of described valve rod 10 is all connected with two flashboards 14, the both sides of each flashboard 14 are provided with the parallel-plate 13 being parallel to each other, described parallel-plate 13 is provided with for adjusting the lash adjusting device in gap between two flashboards 14, described middle control combination valve 7 also comprises the standby valve rod 101 be arrangeding in parallel with valve rod 10, in described valve body 9, be provided with the standby valve seat 102 corresponding with standby valve rod 101, the lower end of described standby valve rod 101 is provided with two standby flashboards 104, the both sides of each standby flashboard 104 are provided with the standby parallel-plate 103 being parallel to each other, and are also provided with for adjusting the lash adjusting device in gap between two standby flashboards 104 on described standby parallel-plate 103.
Described lash adjusting device comprises a plurality of oval pilot hole 15 being arranged on parallel-plate, in described pilot hole 15, be provided with guide sleeve 16, in described guide sleeve 16, be provided with the fixed screw 17 being fixedly connected with flashboard 14 or standby flashboard 104, the opposite face of two flashboards 14 or standby flashboard 104 respectively correspondence is provided with in the cavity that 18, two locating slots of a plurality of locating slots 18 form and is provided with ripple spring 19.
On described valve rod 10 and standby valve rod 101, be equipped with handwheel 20.
Described pilot hole 15 is 8-10.
The main control valve of this wellhead assembly is middle control combination valve 7, structure is the combined valve of double stub shaft four shoe brake plated constructions, feature is that two valve rods can operate separately, during the single valve bar double disc blow-by out of hand of therein, another standby valve rod 101 and two standby flashboards 104 just can operate to use brings into use work, plays the effect of double insurance.Concrete structure is: in a valve body 9, have the valve rod 10 and the standby valve rod 101 that are parallel to each other, the lower end of valve rod 10 and standby valve rod 101 is respectively arranged with two flashboards 14 and two standby flashboards 104, in the cavity that locating slot 18 in the middle of two shoe brake plates 14 or two standby flashboards 104 forms respectively, be provided with ripple spring 19, by parallel-plate 13, control the parallel of flashboard 14, on two parallel-plates 13, there are eight oval pilot holes 15, the centre of pilot hole 15 respectively has a guide sleeve 16 and fixed screw 17 to be separately fixed in the screw hole of two flashboards 14 or standby flashboard 104, by guide sleeve 16, in the position of pilot hole 15, control the gap between two shoe brake plates 14 or two standby flashboards 104 and stretch.In a word, middle control combination valve 7 for being arranged with the structure of the double stub shaft four shoe brake plates that structure is identical in parallel in a valve body 9.
Double disc steam injection valve 8 of the present utility model is all the structure that adopts single valve bar double disc, concrete structure is: in a valve body 9, have a valve rod 10, at valve seat 11 and valve body 9, form cavity in be positioned at valve rod 10 lower end be provided with two flashboards 14, in the cavity that the locating slot 18 of two shoe brake plates 14 forms, be provided with ripple spring 19, the parallel of flashboard 14 controlled with parallel-plate 13 in the both sides of flashboard 14, on parallel-plate 13, there are eight oval pilot holes 15, the centre of pilot hole 15 respectively has a guide sleeve 16 and fixed screw 17 to be separately fixed in the screw hole of two flashboards 14, by guide sleeve 16, in the position of pilot hole 15, control the gap between two shoe brake plates 14 and stretch.
In the utility model, the operating principle of double disc steam injection valve 8 and middle control combination valve 7 is to utilize the elastic force of ripple spring 19 to make up carbon seal ring 12 there is no flexible shortcoming, it relies on the elastic force of the ripple spring 19 in flashboard 14 to make trisome between flashboard 14, valve seat 11 and valve body 9 combine closely to play sealing effectiveness in low-temp low-pressure work, and in HTHP work, it is to utilize the expansion force of carbon seal ring 12 and the operating pressure of self to promote reinforced seal.Prevent like this flashboard tension and produce the phenomenon of pulling locking, improved like this application life of valve, reduced cost for oil production.
The utility model prevents from making flashboard and valve seat pull locking after carbon seal ring heat from expanding, and handwheel is twisted and refused the phenomenons such as power is large, and has extended the application life of valve, has reduced cost for oil production.
Claims (4)
1. novel thermal recovery steam injection wellhead assembly, comprise adapter flange, limit flange, upper flange and lower flange, it is characterized in that: described adapter flange is connected by little four-way with the two ends of limit flange, the two ends of described upper flange and lower flange are connected by big four, the lower end of described little four-way is connected with upper flange, connecting pipe between described little four-way and upper flange is provided with middle control combination valve, the upper end of described little four-way and the left end of big four and right-hand member are respectively equipped with double disc steam injection valve, described double disc steam injection valve and middle control combination valve include valve body and valve rod, in described valve body, be provided with the valve seat corresponding with valve rod, between described valve body and valve seat, be provided with carbon seal ring, the lower end of described valve rod is all connected with two flashboards, the both sides of each flashboard are provided with the parallel-plate being parallel to each other, described parallel-plate is provided with for adjusting the lash adjusting device in gap between two flashboards, described middle control combination valve also comprises the standby valve rod be arrangeding in parallel with valve rod, in described valve body, be also provided with the standby valve seat of answering with service valve pole pair, the lower end of described standby valve rod is provided with two standby flashboards, the both sides of each standby flashboard are provided with the standby parallel-plate being parallel to each other, and are also provided with for adjusting the lash adjusting device in gap between two standby flashboards on described standby parallel-plate.
2. novel thermal recovery steam injection wellhead assembly according to claim 1, it is characterized in that: described lash adjusting device comprises a plurality of oval pilot hole being arranged on parallel-plate, in described pilot hole, be provided with guide sleeve, in described guide sleeve, be provided with the fixed screw being fixedly connected with flashboard, the opposite face of two flashboards respectively correspondence is provided with a plurality of locating slots, in the cavity of two locating slot formation, is provided with ripple spring.
3. novel thermal recovery steam injection wellhead assembly according to claim 1, is characterized in that: on described valve rod and standby valve rod, be equipped with handwheel.
4. novel thermal recovery steam injection wellhead assembly according to claim 1, is characterized in that: described pilot hole is 8-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237181.5U CN203808931U (en) | 2014-05-12 | 2014-05-12 | Novel thermal recovery steam injection wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237181.5U CN203808931U (en) | 2014-05-12 | 2014-05-12 | Novel thermal recovery steam injection wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808931U true CN203808931U (en) | 2014-09-03 |
Family
ID=51447704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237181.5U Expired - Fee Related CN203808931U (en) | 2014-05-12 | 2014-05-12 | Novel thermal recovery steam injection wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
-
2014
- 2014-05-12 CN CN201420237181.5U patent/CN203808931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
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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: 20140903 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |