CN206572002U - A kind of high temperature expansion valve - Google Patents
A kind of high temperature expansion valve Download PDFInfo
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- CN206572002U CN206572002U CN201620837027.0U CN201620837027U CN206572002U CN 206572002 U CN206572002 U CN 206572002U CN 201620837027 U CN201620837027 U CN 201620837027U CN 206572002 U CN206572002 U CN 206572002U
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- valve
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- bonnet
- high temperature
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Abstract
The utility model is related to a kind of high temperature expansion valve, comprising valve body (10), the valve body (10) is provided with hollow inner chamber and the inlet and outlet connected with the inner chamber；Valve seat (104), is arranged on the interior intracavitary of the valve body (10), and it is internally provided with valve plate general assembly (102)；Bonnet (20), positioned at the valve body (10) top and is fixedly connected with the valve body (10)；Valve rod (70), is at least partially disposed in the bonnet (20) and extends to the valve plate general assembly (102)；Main gate-board and auxiliary gate-board are provided with the valve plate general assembly (102), the main gate-board connects the valve rod (70), and the valve rod (70) rotates to control the closure state between the main gate-board and auxiliary gate-board.
Description
Technical field
The utility model is related to a kind of valve, and in particular to a kind of to be applied to oil, the well head of natural gas extraction, pipe
The high temperature resistant expansion valve of road, oil gas pipeline etc..
Background technology
70% above is viscous crude, super-viscous oil and pitch resource, now use steam incoming and outcoming skill more heavy crude producing in petroleum resources
Art, injects high temperature and high pressure steam, to improve oil recovery factor to oil reservoir.Gate valve is used as wellhead assembly and the main portion of production tree
Part, its sealed reliability and stability directly determine the level of well control quality.Parallel gate valve is because small, close with switch torque
The many advantages such as reliability is high, manufacture is easy to maintenance are sealed, are obtained a wide range of applications on normal temperature well head and production tree, and have
Progressively replace the advantage of wedge action valve.Especially for more than 35MPa high-pressure well mouth gate valve, floating type flat gate valve is more highlighted
Go out self-pressure-sealed advantage, but the thermal recovery well head device used in field of heavy oil thermal recovery, its operating temperature reaches 370 DEG C, pressure
Power reaches 21MPa, although take the decompression processing mode of standard recommendation to disclosure satisfy that the requirement of worst hot case in intensity, but due to
The reason for high temperature, causes existing sealing structure can not meet working condition requirement.
In view of above-mentioned defect, the design people is actively subject to research and innovation, to found a kind of high temperature of new structure
Expansion valve, makes it with more the value in industry.
Utility model content
Used in order to solve the above technical problems, the purpose of this utility model is to provide a kind of oil, natural gas extraction of being applied to
Well head, pipeline, oil gas pipeline etc. high temperature resistant expansion valve.
The technical solution of the utility model is as follows：
A kind of high temperature expansion valve, comprising,
Valve body (10), the valve body (10) is provided with hollow inner chamber and the inlet and outlet connected with the inner chamber；
Valve seat (104), is arranged on the interior intracavitary of the valve body (10), and it is internally provided with valve plate general assembly (102)；
Bonnet (20), positioned at the valve body (10) top and is fixedly connected with the valve body (10)；
Valve rod (70), is at least partially disposed in the bonnet (20) and extends to the valve plate general assembly (102)；
Main gate-board and auxiliary gate-board are provided with the valve plate general assembly (102), the main gate-board connects the valve rod (70), institute
Valve rod (70) is stated to rotate to control the closure state between the main gate-board and auxiliary gate-board,
It is characterized in that：It is provided with above the bonnet (20) above support (30), the support (30) and is provided with bearing
Seat (40), the bearing block (40) is internally provided with valve stem nut (701), and the valve rod (70) is located at the valve stem nut
(701) it is internal, the valve stem nut (701) by the bearing block (40) be divided into above and below two spaces, the two spaces up and down
In be each provided with bearing (702), the position of each bearing (702) of correspondence is provided with outside the bearing block (40)
NPT lubricating cups (703).
Further, handwheel (50) is provided with above the bearing block (40), the handwheel (50) is used to rotate the valve
Bar (70).
Further, it is provided with above the handwheel (50) in shield (60), the shield (60) and is provided with indicating arm
(601), the indicating arm (601) connects one end of the valve rod (70).
Further, junction is provided with valve seat insert (105) between the valve seat (104) and the valve body (10),
The valve seat insert (105) is 316+ Graphite pads.
Further, valve bonnet seal circle (106), the bonnet are provided between the bonnet (20) and the valve body (10)
Sealing ring (106) is 316+ Graphite pads.
Further, the support (30) is internally provided with trim ring (202), and the trim ring (202) is used to fix described close
Seal apparatus (201).
Further, the bonnet (20) is internally provided with sealing device (201), and the sealing device (201) is close to institute
Valve rod (70) is stated, the sealing device (201) is valve stem packing ring, spacer ring, the pad from top to bottom set gradually.
Further, greasing mouthful (103) is additionally provided with the valve body (10).
Further, relief valve (107) is additionally provided with the valve body (10), the relief valve (107) is provided with pressure
Measurement apparatus, when the valve body (10) internal pressure exceedes setting value, it is internal that the relief valve (107) opens discharge valve body (10)
Gas.
By such scheme, the utility model at least has advantages below：
(1) valve body, valve cover material are made up of high temperature of carbon steel material in the utility model；Built-in part is by stainless steel material system
Into with certain corrosion resistance；
(2) sealing surface of each part, using novel hard alloy layer (tungsten carbide) coating, makes sealing in the utility model
Face is wear-resistant, and flushing resistance is significantly improved.This coating improves the yielding defect of manual build up welding, improves hard conjunction
The reliability of layer gold.So that the cutoff function of valve is relatively reliable while can also extend the service life of valve.
(3) sealing in the utility model between valve body and bonnet, valve seat and valve body, valve rod and bonnet is 316+ graphite
Pad is sealed, and such a sealing structure can be used for a long time in high temperature environments, while the performance of the low friction using graphite, can
Lower the operational torque of valve.
(4) the utility model valve is provided with grease pouring device in valve body upper valve base position, can be in valve routine use process
The sealing surface of greasing, lubrication valve seat and valve plate is carried out to valve seat and sealing surface of valve plate.Extend the service life of valve critical piece.
(5) valve is configured with automatic safe pressure relief device on valve body, when valve cavity pressure reaches that valve bears pressure
During maximum upper limit, the pressure of valve cavity is discharged into air by automatic start by safe pressure relief device, is that valve is constantly in
Worked under the pressure of safety, so as to be played a protective role to valve, prevent valve caused site safety thing under overload pressure
Therefore and valve damage.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model device；
Fig. 2 is another angle sectional view of the utility model device；
In figure：10- valve bodies；101- guide plates；102- valve plate general assemblies；103- greasings mouthful；104- valve seats；105- valve base sealings
Circle；106- valve bonnet seal circles；107- relief valves；20- bonnets；201- sealing devices；202- trim rings；203- pressing plates；30- supports；
40- bearing blocks；401- clamp nuts；50- handwheels；60- shields；601- indicating arms；70- valve rods；701- valve stem nuts；702- axles
Hold；703-NPT lubricating cups.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
Referring to Fig. 1 and Fig. 2, a kind of high temperature expansion valve of the utility model, comprising,
Valve body 10, the valve body 10 is provided with hollow inner chamber and the inlet and outlet connected with the inner chamber；
Valve seat 104, is arranged on the interior intracavitary of the valve body 10, and it is internally provided with valve plate general assembly 102；
Bonnet 20, positioned at the top of valve body 10 and is fixedly connected with the valve body 10；
Valve rod 70, is at least partially disposed in the bonnet 20 and extends to the valve plate general assembly 102；
Main gate-board and auxiliary gate-board are provided with the valve plate general assembly 102, the main gate-board connects the valve rod 70, the valve
Bar 70 is rotated to control the closure state between the main gate-board and auxiliary gate-board,
The top of bonnet 20 is provided with support 30, and the top of support 30 is provided with bearing block 40, the bearing block 40
Valve stem nut 701 is internally provided with, the valve rod 70 is located inside the valve stem nut 701, the valve stem nut 701 will be described
40 points of bearing block is two spaces up and down, and bearing 702, the bearing block are each provided with the two spaces up and down
The position of each corresponding bearing 702 of 40 outsides is provided with NPT lubricating cups 703.
The top of-the bearing block 40 is provided with handwheel 50, and the handwheel 50 is used to rotate the valve rod 70.
The top of-the handwheel 50, which is provided with shield 60, the shield 60, is provided with indicating arm 601, the indicating arm 601
Connect one end of the valve rod 70.
Junction is provided with valve seat insert 105, the valve seat insert between the-valve seat 104 and the valve body 10
105 be 316+ Graphite pads.
Valve bonnet seal circle 106 is provided between-the bonnet 20 and the valve body 10, the valve bonnet seal circle 106 is 316
+ Graphite pad.
- the support 30 is internally provided with trim ring 202, and the trim ring 202 is used to fix the sealing device 201.
- the bonnet 20 is internally provided with sealing device 201, and the sealing device 201 is close to the valve rod 70, described close
Seal apparatus 201 is valve stem packing ring, spacer ring, the pad from top to bottom set gradually.
Greasing mouthful 103 is additionally provided with-the valve body 10.
Relief valve 107 is additionally provided with-the valve body 10, the relief valve 107 is provided with device for pressure measurement, when described
The internal pressure of valve body 10 exceedes setting value, and the relief valve 107 opens the discharge internal gas of valve body 10.
The utility model has the following advantages that：
(1) valve body, valve cover material are made up of high temperature of carbon steel material in the utility model；Built-in part is by stainless steel material system
Into with certain corrosion resistance；
(2) sealing surface of each part, using novel hard alloy layer (tungsten carbide) coating, makes sealing in the utility model
Face is wear-resistant, and flushing resistance is significantly improved.This coating improves the yielding defect of manual build up welding, improves hard conjunction
The reliability of layer gold.So that the cutoff function of valve is relatively reliable while can also extend the service life of valve.
(3) sealing in the utility model between valve body and bonnet, valve seat and valve body, valve rod and bonnet is 316+ graphite
Pad is sealed, and such a sealing structure can be used for a long time in high temperature environments, while the performance of the low friction using graphite, can
Lower the operational torque of valve.
(4) the utility model valve is provided with grease pouring device in valve body upper valve base position, can be in valve routine use process
The sealing surface of greasing, lubrication valve seat and valve plate is carried out to valve seat and sealing surface of valve plate.Extend the service life of valve critical piece.
(5) valve is configured with automatic safe pressure relief device on valve body, when valve cavity pressure reaches that valve bears pressure
During maximum upper limit, the pressure of valve cavity is discharged into air by automatic start by safe pressure relief device, is that valve is constantly in
Worked under the pressure of safety, so as to be played a protective role to valve, prevent valve caused site safety thing under overload pressure
Therefore and valve damage.Described above is only preferred embodiment of the present utility model, is not limited to the utility model, should
When pointing out, for those skilled in the art, on the premise of the utility model technical principle is not departed from, go back
Some improvement and modification can be made, these improvement and modification also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of high temperature expansion valve, comprising,
Valve body (10), the valve body (10) is provided with hollow inner chamber and the inlet and outlet connected with the inner chamber；
Valve seat (104), is arranged on the interior intracavitary of the valve body (10), and it is internally provided with valve plate general assembly (102)；
Bonnet (20), positioned at the valve body (10) top and is fixedly connected with the valve body (10)；
Valve rod (70), is at least partially disposed in the bonnet (20) and extends to the valve plate general assembly (102), the bonnet (20)
Sealing device (201) is internally provided with, the sealing device (201) is close to the valve rod (70)；
Main gate-board and auxiliary gate-board are provided with the valve plate general assembly (102), the main gate-board connects the valve rod (70), the valve
Bar (70) is rotated to control the closure state between the main gate-board and auxiliary gate-board,
It is characterized in that：The sealing device (201) is valve stem packing ring, spacer ring, the pad from top to bottom set gradually, described
Support (30) is provided with above bonnet (20), the support (30) is internally provided with trim ring (202), and the trim ring (202) is used for
It is provided with inside bearing block (40), the bearing block (40) and sets above the fixed sealing device (201), the support (30)
There is valve stem nut (701), the valve rod (70) is located at the valve stem nut (701) inside, and the valve stem nut (701) will be described
Bearing block (40) be divided into above and below two spaces, it is described to be each provided with bearing (702), the axle in two spaces up and down
The position of each bearing (702) of correspondence is provided with NPT lubricating cups (703) outside bearing (40).
2. a kind of high temperature expansion valve according to claim 1, it is characterised in that：Hand is provided with above the bearing block (40)
Take turns (50), the handwheel (50) is used to rotate the valve rod (70).
3. a kind of high temperature expansion valve according to claim 2, it is characterised in that：Shield is provided with above the handwheel (50)
(60) indicating arm (601), is provided with the shield (60), the indicating arm (601) connects one end of the valve rod (70).
4. a kind of high temperature expansion valve according to claim 1, it is characterised in that：The valve seat (104) and the valve body
(10) junction is provided with valve seat insert (105) between, and the valve seat insert (105) is 316+ Graphite pads.
5. a kind of high temperature expansion valve according to claim 1, it is characterised in that：The bonnet (20) and the valve body (10)
Between be provided with valve bonnet seal circle (106), the valve bonnet seal circle (106) is 316+ Graphite pads.
6. a kind of high temperature expansion valve according to claim 1, it is characterised in that：Greasing is additionally provided with the valve body (10)
Mouth (103).
7. a kind of high temperature expansion valve according to claim 1, it is characterised in that：Pressure release is additionally provided with the valve body (10)
Valve (107), the relief valve (107) is provided with device for pressure measurement, when the valve body (10) internal pressure exceedes setting value, institute
State relief valve (107) and open discharge valve body (10) internal gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837027.0U CN206572002U (en) | 2016-08-02 | 2016-08-02 | A kind of high temperature expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837027.0U CN206572002U (en) | 2016-08-02 | 2016-08-02 | A kind of high temperature expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206572002U true CN206572002U (en) | 2017-10-20 |
Family
ID=60062097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620837027.0U Active CN206572002U (en) | 2016-08-02 | 2016-08-02 | A kind of high temperature expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206572002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404882A (en) * | 2021-06-29 | 2021-09-17 | 泉高阀门科技有限公司 | Valve sealing plate |
-
2016
- 2016-08-02 CN CN201620837027.0U patent/CN206572002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404882A (en) * | 2021-06-29 | 2021-09-17 | 泉高阀门科技有限公司 | Valve sealing plate |
| CN113404882B (en) * | 2021-06-29 | 2023-06-27 | 泉高阀门科技有限公司 | Valve sealing plate |
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