CN203703150U - Dual-seal right-angle throttling valve - Google Patents
Dual-seal right-angle throttling valve Download PDFInfo
- Publication number
- CN203703150U CN203703150U CN201420046549.XU CN201420046549U CN203703150U CN 203703150 U CN203703150 U CN 203703150U CN 201420046549 U CN201420046549 U CN 201420046549U CN 203703150 U CN203703150 U CN 203703150U
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- Prior art keywords
- valve
- valve seat
- spool
- base
- rod
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- Expired - Fee Related
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- Sliding Valves (AREA)
Abstract
The utility model discloses a dual-seal right-angle throttling valve which comprises a valve body, a valve rod, a first valve base, a second valve base, a first valve element and a second valve element. The first valve element and the second valve element are made of ceramic materials. The first valve base and the second valve base are fixedly arranged inside a medium circulation channel of the valve body. The inner diameter of the second valve base is smaller than that of the first valve base. The axis line of the first valve base and the axis line of the second valve base are the same. Both the first valve element and the second valve element are fixedly arranged on the valve rod. The outer diameter of the first valve element is matched with the inner diameter of the first valve base. The outer diameter of the second valve element is matched with the inner diameter of the second valve base. The two valve elements and the two valve bases are matched to dually seal the medium circulation channel of the valve body. According to the dual-seal right-angle throttling valve, the medium circulation channel inside the valve body can be dually sealed, the sealing performance of the throttling valve can be improved, and the service life of the throttling valve can be prolonged.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of right angle throttle valve of double seal, is widely used in oil, rock gas and chemical industry conveyance conduit.
Background technique
Right angle throttle valve is by changing throttling cross section or chock length to control the valve of fluid flow, be mainly used in controlling flow, optimizing and produce, both can reduce well head pressure it is reached can applying pressure scope, can be used for again noting well throttling and drilling well throttling.
Right angle of the prior art throttle valve is generally made up of valve body, valve gap, valve rod, valve seat, handwheel and spool, valve gap is fixedly connected with valve body, valve seat is arranged in valve body, one end of valve rod is connected with handwheel, the other end is stretched in valve body and is connected with spool by valve gap, valve rod can move up and down under the drive of handwheel, spool under the drive of valve rod with valve seat fitted seal or open the MEDIA FLOW circulation passage in valve body.As China Patent No. " 201220318644.1 " discloses a kind of right angle throttle valve, its open day is on 02 27th, 2013, its technological scheme is that described right angle throttle valve comprises valve body, valve gap, valve rod and spool, described valve gap is connected with valve body and fixes, valve gap center is provided with valve rod, the lower end of valve rod is provided with spool, spool is located between the import and outlet of valve body, described valve rod is flexibly connected by screw thread with valve gap, valve rod upper end is provided with valve bonnet, and valve bonnet is set on valve rod and can be with ovable valve stem to rotate; Described spool is made as conical structure, and spool can move up and down with the rotation of valve rod, and the sealing surface of spool and valve body can form the gap reducing gradually, forms and is tightly connected until final.In this patent, mainly by spool and valve seat fitted seal MEDIA FLOW circulation passage, but due to the working environment very severe of throttle valve, in the environment of height erosion, high pressure (maximum pressure can reach 20000psi), high temperature, CO2 and H2S corrosion, work for a long time, this just makes the spool of direct and medium contact easily damaged, between spool and the sealing surface of valve seat, easily there is gap, thereby affect the working life of whole throttle valve.Although also there is the overall spool that adopts cemented carbide to make in prior art, be limited by the cost of throttle valve, its actual sale effect is also undesirable.
Model utility content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, a kind of right angle throttle valve of double seal is provided, the MEDIA FLOW circulation passage of the utility model in can double seal valve body, not only can improve the sealing of throttle valve, the working life that can also improve throttle valve.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of right angle throttle valve of double seal, it is characterized in that: comprise valve body, valve rod, the first valve seat, the second valve seat and the first spool of being made by stupalith and the second spool, described the first valve seat and the second valve seat are fixedly installed in the MEDIA FLOW circulation passage of valve body, the internal diameter of described the second valve seat is less than the internal diameter of the first valve seat, and the first valve seat is identical with the shaft axis of the second valve seat; Described the first spool and the second spool are all fixedly installed on valve rod, and the internal diameter of the external diameter of the first spool and the first valve seat is suitable, the internal diameter of the external diameter of the second spool and the second valve seat is suitable, the MEDIA FLOW circulation passage of described two spools and two valve seat cooperation double seal valve bodies.
On the internal surface of described the first valve seat and the second valve seat, be provided with the sealing layer of being made by stupalith.
Employing the utility model has the advantage of:
One, in the utility model, because ceramic hardness is more than or equal to 87HRA, therefore adopt spool that stupalith is made can adapt to the working environment of throttle valve, again because the proportion of stupalith is lighter, onesize pts wt is only 1/5 of cemented carbide, by the calculating to cost of material, the cost of ceramic part is only 1/2 of cemented carbide, ensureing under the prerequisite of identical even higher effect, adopting the cost of the throttle valve of ceramic valve core is only the half of existing throttle valve cost, has significantly reduced the cost of production of throttle valve.And adopt the structure of double-valve-seat and double spool, and can carry out double seal to MEDIA FLOW circulation passage, even if the first resealing lost efficacy, also have the second resealing, not only can effectively cut off medium, seepage while preventing, can also extend working life of throttle valve.
Two, in the utility model, on the internal surface of described the first valve seat and the second valve seat, be provided with the sealing layer of being made up of stupalith, this structure is reducing under the prerequisite of throttle valve cost, can further improve the sealing effect of throttle valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Being labeled as in figure: 1, valve body, 2, valve rod, 3, handwheel, 4, the first valve seat, 5, the second valve seat, 6, the first spool, 7, the second spool, 8, sealing layer.
Embodiment
A kind of right angle throttle valve of double seal, comprise valve body 1, valve rod 2, handwheel 3, the first valve seat 4, the second valve seat 5 and the first spool 6 of being made by stupalith and the second spool 7, described handwheel 3 is connected with valve rod 2, described the first valve seat 4 and the second valve seat 5 are fixedly installed in the MEDIA FLOW circulation passage of valve body 1, on the internal surface of described the first valve seat 4 and the second valve seat 5, be provided with the sealing layer 8 of being made by stupalith, the internal diameter of described the second valve seat 5 is less than the internal diameter of the first valve seat 4, and the first valve seat 4 is identical with the shaft axis of the second valve seat 5; Described the first spool 6 and the second spool 7 are all fixedly installed on valve rod 2, and the internal diameter of the external diameter of the first spool 6 and the first valve seat 4 is suitable, the internal diameter of the external diameter of the second spool 7 and the second valve seat 5 is suitable, the MEDIA FLOW circulation passage of described two spools and two valve seat cooperation double seal valve bodies 1.
In the utility model, described the first spool 6 and the second spool 7 are preferably threaded with valve rod 2, when the first spool 6 or the second spool 7 wear and tear when larger, can change at any time spool by screw thread.
Working principle of the present utility model is: in the time of needs sealing medium circulation passage, rotate handwheel 3, make valve rod 2 drive the second spool 7 and the first spool 6 to move to the second valve seat 5 and the first valve seat 4 respectively, until sealing layer 8 close contacts on the outer surface of the second valve seat 5 and the second valve seat 5 and until sealing layer 8 close contacts on the outer surface of the first valve seat 4 and the first valve seat 4 complete the sealing of circulation passage.Otherwise for opening MEDIA FLOW circulation passage, because the internal diameter of the second valve seat 5 is less than the internal diameter of the first valve seat 4, therefore two spools and two valve seats can form double seal to MEDIA FLOW circulation passage, thereby can effectively extend the working life of throttle valve.
Claims (2)
1. the right angle throttle valve of a double seal, it is characterized in that: comprise valve body (1), valve rod (2), the first valve seat (4), the second valve seat (5) and the first spool (6) of being made by stupalith and the second spool (7), described the first valve seat (4) and the second valve seat (5) are fixedly installed in the MEDIA FLOW circulation passage of valve body (1), the internal diameter of described the second valve seat (5) is less than the internal diameter of the first valve seat (4), and the first valve seat (4) is identical with the shaft axis of the second valve seat (5); Described the first spool (6) and the second spool (7) are all fixedly installed on valve rod (2), and the internal diameter of the external diameter of the first spool (6) and the first valve seat (4) is suitable, the internal diameter of the external diameter of the second spool (7) and the second valve seat (5) is suitable, the MEDIA FLOW circulation passage of described two spools and two valve seat cooperation double seal valve bodies (1).
2. the right angle throttle valve of a kind of double seal as claimed in claim 1, is characterized in that: on the internal surface of described the first valve seat (4) and the second valve seat (5), be provided with the sealing layer (8) of being made up of stupalith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046549.XU CN203703150U (en) | 2014-01-25 | 2014-01-25 | Dual-seal right-angle throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046549.XU CN203703150U (en) | 2014-01-25 | 2014-01-25 | Dual-seal right-angle throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703150U true CN203703150U (en) | 2014-07-09 |
Family
ID=51053595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046549.XU Expired - Fee Related CN203703150U (en) | 2014-01-25 | 2014-01-25 | Dual-seal right-angle throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156749A (en) * | 2015-09-10 | 2015-12-16 | 成都聚智工业设计有限公司 | Novel on-off stop valve |
| CN114645692A (en) * | 2022-05-23 | 2022-06-21 | 德州联合石油科技股份有限公司 | Wellhead Christmas tree throttle valve core and throttle valve |
| CN114776822A (en) * | 2022-05-19 | 2022-07-22 | 成都汇川新能科技有限公司 | Anti-corrosion wear-resistant valve |
-
2014
- 2014-01-25 CN CN201420046549.XU patent/CN203703150U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156749A (en) * | 2015-09-10 | 2015-12-16 | 成都聚智工业设计有限公司 | Novel on-off stop valve |
| CN105156749B (en) * | 2015-09-10 | 2017-07-18 | 上海美科阀门有限公司 | Novel switched stop valve |
| CN114776822A (en) * | 2022-05-19 | 2022-07-22 | 成都汇川新能科技有限公司 | Anti-corrosion wear-resistant valve |
| CN114645692A (en) * | 2022-05-23 | 2022-06-21 | 德州联合石油科技股份有限公司 | Wellhead Christmas tree throttle valve core and throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 618021 Deyang province Sichuan city Xiaogan town Jingyang District Taiping Village Patentee after: Deyang Zheng Guang Petroleum Machinery Manufacturing Co., Ltd. Address before: 618021 Deyang province Sichuan city Xiaogan town Jingyang District Taiping Village Patentee before: DEYANG ZHENGGUANG ELECTROMECHANICAL EQUIPMENT CO., LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Dual-seal right-angle throttling valve Effective date of registration: 20161108 Granted publication date: 20140709 Pledgee: China branch of the postal savings bank Limited by Share Ltd in Deyang City Pledgor: Deyang Zheng Guang Petroleum Machinery Manufacturing Co., Ltd. Registration number: 2016990000954 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220126 Granted publication date: 20140709 Pledgee: China branch of the postal savings bank Limited by Share Ltd. in Deyang City Pledgor: DEYANG ZHENGGUANG PETROLEUM MACHINERY MANUFACTURE CO.,LTD. Registration number: 2016990000954 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |