CN104295778A - Natural gas lift check valve - Google Patents
Natural gas lift check valve Download PDFInfo
- Publication number
- CN104295778A CN104295778A CN201410466904.3A CN201410466904A CN104295778A CN 104295778 A CN104295778 A CN 104295778A CN 201410466904 A CN201410466904 A CN 201410466904A CN 104295778 A CN104295778 A CN 104295778A
- Authority
- CN
- China
- Prior art keywords
- valve
- gas lift
- lift check
- spring
- natural gas
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
Abstract
The invention relates to the technical field of valves, in particular to a natural gas lift check valve which is mounted on a natural gas conveying pipeline. The natural gas lift check valve is provided with a valve body and a valve deck. A valve seat is arranged in the valve body, and the valve seat divides a channel in the valve body into a gas inlet section and a gas outlet section. A raised ring is vertically arranged at the center of the inner wall of the valve deck, a spring base is arranged in the raised ring, and the spring base is fixedly connected with a spring. A valve rod is arranged in the valve body, the tail end of the valve rod is connected with a valve plate, and the valve rod is sleeved with the spring. An anti-collision raised strip is mounted on the side, close to the valve seat, of the valve plate. The natural gas lift check valve is reasonable in design and capable of being turned on and off quickly, the natural gas lift check valve is mounted on a horizontal pipeline, the valve plate is perpendicular to the channel of the valve body and moves along the center line of the valve seat, the valve plate can be opened by depending on airflow thrust and fall by depending on the gravity and the torsion of the spring, due to the arrangement of the anti-collision raised strip, anti-collision performance is good, meanwhile, manufacturing and maintaining are both quite convenient, and service life is long.
Description
Technical field
The present invention relates to valve technology field, especially a kind of rock gas Lift check valve being installed on natural gas line conveying.
Background technique
Be used for controlling the flow of gas or liquid in pipeline, reduce their pressure or change the parts of flow direction, being commonly referred to as valve.In natural gas line conveying, indispensable valve is safety check, is most popular a kind of valve.Safety check is again check valve or one-way valve.It relies on the automatic open and close flap of flowing of medium itself, is used for preventing air-flow in pipeline from flowing backwards.When producing refluence, flap will be closed automatically.Safety check is generally used on the outlet conduit of natural gas compressor, shutdown or when having a power failure suddenly, prevent the pressurized gas in pipe from flowing backwards, this refluence often causes compressor high speed reverse rotation, formation mechanical accident.Traditional check valve structure is complicated, be not easy to processing, Operation and Maintenance is inconvenient, and due to the friction that valve plate is closed, easily cause the wearing and tearing of seal ring, working life is short, and sealability declines, and easily reveals.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of structure simple, crashproof anti abrasive rock gas Lift check valve.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rock gas Lift check valve, has valve body and valve gap, is provided with valve seat in described valve body, and the channel partition in valve body is become air inlet section and air outlet section by valve seat; Described valve gap inwall central vertical is provided with flange collar, and flange collar is built-in with spring pedestal, and spring pedestal is fixed with spring; Described valve body is built-in with valve rod, and valve stem end is connected with valve plate, and spring housing is located at outside valve rod; Described valve plate is being provided with crashproof raised line near valve seat side.
Further, the import of described air inlet section and the outlet of air outlet section is all one-body molded flange.
Further, seal ring is provided with between described valve body and valve gap.
Further, be fixedly connected with by clamping bolt between described valve body and valve gap.
Further, described crashproof raised line is rubber flange collar.
The invention has the beneficial effects as follows: the present invention is reasonable in design, switch is rapid, be installed on horizontal pipe, valve plate, perpendicular to the passage of valve body, moves along valve seat center line, valve plate is opened by the thrust of air-flow, fall by gravity and spring torsion, be provided with crashproof raised line, crashworthiness is good, manufacture simultaneously and overhaul all more convenient, long service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
1. valve bodies, 2. valve gap, 3. flange collar, 4. spring pedestal, 5. spring, 6. seal ring, 7. clamping bolt, 8. air inlet section, 9. air outlet section, 10. valve rod in figure, 11. valve plates, 12. valve seats, 13. crashproof raised lines.
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of rock gas Lift check valve as shown in Figure 1, has valve body 1 and valve gap 2, is provided with valve seat 12 in valve body 1, and the channel partition in valve body 1 is become air inlet section 8 and air outlet section 9 by valve seat 12; Valve gap 2 inwall central vertical is provided with flange collar 3, and flange collar 3 is built-in with spring pedestal 4, and spring pedestal 4 is fixed with spring 5; Valve body 1 is built-in with valve rod 10, and valve rod 10 end is connected with valve plate 11, and spring 5 is set in outside valve rod 10; Valve plate 11 is being provided with crashproof raised line 13 near valve seat 12 side.
The import of the air inlet section 8 and outlet of air outlet section 9 is all one-body molded flange; Seal ring 6 is provided with between valve body 1 and valve gap 2; Be fixedly connected with by clamping bolt 7 between valve body 1 and valve gap 2; Crashproof raised line 13 is rubber flange collar.
During normal work, rock gas enters from air inlet section 8, upwards opens at Imported gas forced under pressure valve plate 11, enters air outlet section 9 and circulates; When shutdown or when having a power failure suddenly, valve plate 11 will automatically be closed under the effect of gravity and spring torsion, prevent the pressurized gas in pipe from flowing backwards.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. a rock gas Lift check valve, it is characterized in that: there is valve body (1) and valve gap (2), be provided with valve seat (12) in described valve body (1), the channel partition in valve body (1) is become air inlet section (8) and air outlet section (9) by valve seat (12); Described valve gap (2) inwall central vertical is provided with flange collar (3), and flange collar (3) is built-in with spring pedestal (4), and spring pedestal (4) is fixed with spring (5); Described valve body (1) is built-in with valve rod (10), and valve rod (10) end is connected with valve plate (11), and spring (5) is set in valve rod (10) outward; Described valve plate (11) is being provided with crashproof raised line (13) near valve seat (12) side.
2. rock gas Lift check valve according to claim 1, is characterized in that: the import of described air inlet section (8) and the outlet of air outlet section (9) is all one-body molded flange.
3. rock gas Lift check valve according to claim 1, is characterized in that: be provided with seal ring (6) between described valve body (1) and valve gap (2).
4. rock gas Lift check valve according to claim 1, is characterized in that: be fixedly connected with by clamping bolt (7) between described valve body (1) and valve gap (2).
5. rock gas Lift check valve according to claim 1, is characterized in that: described crashproof raised line (13) is rubber flange collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466904.3A CN104295778A (en) | 2014-09-12 | 2014-09-12 | Natural gas lift check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466904.3A CN104295778A (en) | 2014-09-12 | 2014-09-12 | Natural gas lift check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295778A true CN104295778A (en) | 2015-01-21 |
Family
ID=52315632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466904.3A Pending CN104295778A (en) | 2014-09-12 | 2014-09-12 | Natural gas lift check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295778A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2520442Y (en) * | 2001-12-29 | 2002-11-13 | 赵昱 | Single-flow check valve with double-layer valve core |
| JP2003301954A (en) * | 2002-04-11 | 2003-10-24 | Ishizaki Seisakusho:Kk | Check valve and manufacturing method thereof |
| CN201582454U (en) * | 2009-12-17 | 2010-09-15 | 浙江正华阀门厂 | Check valve |
| CN201606549U (en) * | 2010-03-08 | 2010-10-13 | 宁波华成阀门有限公司 | Non-return stop valve |
| CN202756704U (en) * | 2012-08-14 | 2013-02-27 | 青岛山野自动化工程有限公司 | Adjustable resistance check valve |
| CN203395300U (en) * | 2013-06-27 | 2014-01-15 | 浙江工贸职业技术学院 | Check valve with double seals |
-
2014
- 2014-09-12 CN CN201410466904.3A patent/CN104295778A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2520442Y (en) * | 2001-12-29 | 2002-11-13 | 赵昱 | Single-flow check valve with double-layer valve core |
| JP2003301954A (en) * | 2002-04-11 | 2003-10-24 | Ishizaki Seisakusho:Kk | Check valve and manufacturing method thereof |
| CN201582454U (en) * | 2009-12-17 | 2010-09-15 | 浙江正华阀门厂 | Check valve |
| CN201606549U (en) * | 2010-03-08 | 2010-10-13 | 宁波华成阀门有限公司 | Non-return stop valve |
| CN202756704U (en) * | 2012-08-14 | 2013-02-27 | 青岛山野自动化工程有限公司 | Adjustable resistance check valve |
| CN203395300U (en) * | 2013-06-27 | 2014-01-15 | 浙江工贸职业技术学院 | Check valve with double seals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |