CN201963894U - High-temperature, high-pressure and high-flow needle valve - Google Patents
High-temperature, high-pressure and high-flow needle valve Download PDFInfo
- Publication number
- CN201963894U CN201963894U CN2011200008880U CN201120000888U CN201963894U CN 201963894 U CN201963894 U CN 201963894U CN 2011200008880 U CN2011200008880 U CN 2011200008880U CN 201120000888 U CN201120000888 U CN 201120000888U CN 201963894 U CN201963894 U CN 201963894U
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- valve
- valve body
- handle
- needle
- spool
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- Expired - Fee Related
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Abstract
The utility model relates to a high-temperature, high-pressure and high-flow needle valve which comprises a valve seat, a valve body and a handle, wherein the valve seat is connected with the valve body in a sealing manner; a valve rod and a valve core are coaxially connected in the valve body by screw threads; the top end of the valve rod is fixedly connected with the handle; a passageway on/off structure is arranged in the valve seat; the valve core moves up and down through the rotation of the handle so as to realize the on or off of a passageway; the valve body is divided into an upper valve body and a lower valve body which are firmly locked through locking rings; a radial sealing ring is arranged between an inner chamber surface of the lower valve body and a columnar surface of the valve core; and another radial sealing ring is arranged between the inner chamber surface of the lower valve body and the columnar surface of the valve core. When the needle valve is opened, the handle is rotated upwards, and the valve core moves upwards, so that the upper valve body firmly presses an ink pressing ring, the passageway on/off structure is opened, and the upper valve body and the lower valve body are located at locked positions; when the high-flow needle valve is adopted, the valve core and the sealing rings are sealed, and the prevention of a gas medium flowing through the valve seat from leakage due to mechanical operations is ensured; moreover, the long-time and reliable operation of the needle valve under a corrosive medium at a high-temperature environment is realized.
Description
Technical field
The utility model relates to a kind of High Temperature High Pressure needle-valve, belongs to hydraulic pressure and Pneumatic Control Technology field.
Background technique
The big flow needle-valve of High Temperature High Pressure has been widely used in industries such as oil, chemical industry, power plant now, is mainly used in High Temperature High Pressure, and in the environment of seriously corroded, common needle-valve body can't proper functioning.
At present, known needle-valve mainly comprises valve seat, valve body and handle, valve seat is connected with valve seal, coaxial valve rod and the spool of being bolted with in the valve body, valve stem tip is fixedlyed connected with handle, be provided with the passage on-off structure in the valve seat, the turn by handle makes spool move up and down the closure or openness of realizing passage.Existing needle-valve is because the one design of valve body, can't the real-time ensuring valve body and spool between tightness, when the working environment that is in normal temperature, high pressure, working medium is generally inert gas or other clean media, seal form is seal ring commonly used, copper medium etc., occur gas medium easily by letting out on the spool, can't in high temperature, corrosion-prone medium, work.
The model utility content
The purpose of this utility model provides a kind of big flow needle-valve of High Temperature High Pressure that can work in high temperature, corrosion-prone medium.
For achieving the above object, the big flow needle-valve of a kind of High Temperature High Pressure of the present utility model, comprise valve seat, valve body and handle, valve seat is connected with valve seal, coaxial valve rod and the spool of being bolted with in the valve body, valve stem tip is fixedlyed connected with handle, be provided with the passage on-off structure in the valve seat, turn by handle makes spool move up and down the closure or openness of realizing passage, described valve body is divided into upper and lower valve body, this upper and lower valve body is locked by locking ring, is provided with the radial seal ring between described body cavity face down and the spool cylinder.
Further, described seal ring is located at down in the step hole and the annular space between the spool cylinder of body cavity face, the bottom of this annular space is provided with Expanded graphite, and enlarging place of described step hole is provided with presses the China ink ring, and this presses the China ink ring to cooperate with upper valve body inner port roof pressure.
Further, described valve seat is connected with big gasket seal by Expanded graphite with valve body.
The big flow needle-valve of a kind of High Temperature High Pressure of the present utility model is being provided with the radial seal ring between body cavity face and the spool cylinder down, in the needle-valve opening process, on revolve handle and make on the spool and move, make upper valve body compress the China ink ring, passage on-off structure in the valve seat is opened, upper valve body is in locked position with following valve body by locking ring simultaneously, this structure makes spool and seal ring seal, the gas medium that has guaranteed to flow through valve seat is the only action of machinery and revealing not, this needle-valve can be under corrosion-prone medium, under the environment of high temperature, realize the long-time reliably working of needle-valve.
Description of drawings
Fig. 1 is the structural representation of the utility model needle-valve.
Embodiment
The big flow needle valve structure of High Temperature High Pressure of the present utility model as shown in Figure 1, this needle-valve comprises valve seat 6, valve body and handle 2, valve body is to be made of fixedly connected upper valve body 1 and following valve body 4, upper valve body 1 is fixedlyed connected by locking ring 10 with following valve body 4, valve seat 6 is tightly connected by base Expanded graphite 14 with following valve body 4, and by big pad 13 further fit sealings, be provided with valve rod 3 in the upper valve body 1, valve rod 3 tops and handle 2 are spirally connected fixing, valve rod 3 upper surfaces are provided with pad 7 and nut 8, the coaxial spool 5 that is bolted with in valve rod 3 bottoms, spool 5 comes out from the bottom of upper valve body 1, enters in the valve seat 6 by valve body 2 under seal ring and the process, and the left side of valve seat 6 is provided with gas-entered passageway, the right side is provided with outlet passageway, can make spool 5 move up and down the closure or openness of realizing the passage on-off structure by handle with sleeve 2.Be provided with the radial seal ring between valve body 4 inner cavity surface and spool 5 cylinders down, seal ring is located at down in the step hole and the annular space between spool 5 cylinders of valve body 5 inner cavity surface, the bottom of this annular space is provided with spool Expanded graphite 12, enlarging place of step hole is provided with presses China ink ring 11, and this presses China ink ring 11 to cooperate with upper valve body 1 inner port roof pressure.
Needle-valve of the present utility model is from the left side air inlet, handle with sleeve can move up and down spool the closure or openness of realizing the passage on-off structure, when moving on the needle-valve, spool separates with valve seat, gas passes through, and can not adopt the sealing of spool Expanded graphite from the gas leakage of spool axial direction for guaranteeing gas, can carry high temperature, high pressure, realize the big flow output of the big flow needle-valve of High Temperature High Pressure; Another mistake makes needle-valve move down the gas communication that can end turnover gas passage to handle with sleeve, and is simple to operate, highly versatile.
Needle-valve of the present utility model adopts the 316SS stainless steel material, adopts special thermal treatment technology to improve intensity; Adopt the novel sealing technology, changed the fixed mode of seal ring in the past, adopt new sealing material, realize the High Temperature High Pressure dynamic seal (packing); And improved the standardization level and the versatility of part, no easily damaged parts has reduced maintenance cost.
Claims (3)
1. big flow needle-valve of High Temperature High Pressure, comprise valve seat, valve body and handle, valve seat is connected with valve seal, coaxial valve rod and the spool of being bolted with in the valve body, valve stem tip is fixedlyed connected with handle, is provided with the passage on-off structure in the valve seat, turn by handle makes spool move up and down the closure or openness of realizing passage, it is characterized in that: described valve body is divided into upper and lower valve body, and this upper and lower valve body is locked by locking ring, is provided with the radial seal ring between described body cavity face down and the spool cylinder.
2. the big flow needle-valve of a kind of High Temperature High Pressure according to claim 1, it is characterized in that: described seal ring is located at down in the step hole and the annular space between the spool cylinder of body cavity face, the bottom of this annular space is provided with Expanded graphite, enlarging place of described step hole is provided with presses the China ink ring, and this presses the China ink ring to cooperate with upper valve body inner port roof pressure.
3. the big flow needle-valve of a kind of High Temperature High Pressure according to claim 2 is characterized in that: described valve seat is connected with big gasket seal by Expanded graphite with valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200008880U CN201963894U (en) | 2011-01-04 | 2011-01-04 | High-temperature, high-pressure and high-flow needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200008880U CN201963894U (en) | 2011-01-04 | 2011-01-04 | High-temperature, high-pressure and high-flow needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963894U true CN201963894U (en) | 2011-09-07 |
Family
ID=44526430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200008880U Expired - Fee Related CN201963894U (en) | 2011-01-04 | 2011-01-04 | High-temperature, high-pressure and high-flow needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963894U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937189A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Needle valve with two-piece valve rods |
| CN103800984A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve module for controlling fluid flow |
| CN103800983A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN103939620A (en) * | 2014-04-18 | 2014-07-23 | 西南石油大学 | Ultrahigh pressure high-temperature needle valve |
| CN104676025A (en) * | 2013-12-03 | 2015-06-03 | 黄家军 | Highly sealed needle valve |
| CN109139937A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of double isolation needle-valves of super-pressure |
-
2011
- 2011-01-04 CN CN2011200008880U patent/CN201963894U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103800984A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve module for controlling fluid flow |
| CN103800983A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN103800983B (en) * | 2012-11-13 | 2017-04-19 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN102937189A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Needle valve with two-piece valve rods |
| CN104676025A (en) * | 2013-12-03 | 2015-06-03 | 黄家军 | Highly sealed needle valve |
| CN103939620A (en) * | 2014-04-18 | 2014-07-23 | 西南石油大学 | Ultrahigh pressure high-temperature needle valve |
| CN109139937A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of double isolation needle-valves of super-pressure |
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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: 20110907 Termination date: 20190104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |