CN203686272U - Large-caliber axial-flow type check valve - Google Patents
Large-caliber axial-flow type check valve Download PDFInfo
- Publication number
- CN203686272U CN203686272U CN201420028591.9U CN201420028591U CN203686272U CN 203686272 U CN203686272 U CN 203686272U CN 201420028591 U CN201420028591 U CN 201420028591U CN 203686272 U CN203686272 U CN 203686272U
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- valve
- air guide
- guide sleeve
- type check
- flow type
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Abstract
The utility model relates to a large-caliber axial-flow type check valve which is mainly composed of a valve body, a valve seat, a valve clack, a spring and a flow guiding cover. The valve clack and the flow guiding cover are arranged in a valve cavity. The flow guiding cover is conical, the flow guiding cover and the valve body are coaxially arranged, a supporting frame is arranged on the inner side of the valve seat, and the spring is arranged on the valve clack. The valve clack is in a T shape, one end of the valve clack is supported against a supporting guiding pipe in the center of the flow guiding cover, the other end of the valve clack is supported against the supporting frame on the inner side of the valve seat, and the valve clack performs linear reciprocating movement through balanced supporting at the two ends under the positive and negative effects of the medium pressure and the spring pressure to open or close the valve. The large-caliber axial-flow type check valve has the advantages that due to the front-back balanced type dual supporting of the T-shaped valve clack, the valve clack can overcome the gravity of the valve clack to freely and smoothly move in the axial direction without blocking; due to soft-and-rigid dual sealing, sealing is reliable; the flow guiding cover can guide flowing of media and can reliably support the valve clack; the valve body is designed to be in a bottle shape, the pressure of the media is effectively released in the valve body, and the service life of the large-caliber axial-flow type check valve is guaranteed.
Description
Technical field
The utility model relates to the valve that a kind of oil reserve engineering is used, particularly a kind of heavy caliber axial flow type check valve.
Background technique
For the manufacturing of heavy caliber axial flow type check valve, be a difficult problem at present.Because the weight and volume of heavy caliber safety check is large, difficulty of processing is very large.Generally, the weight of valve body has several tons of weights, and the weight of flap has one ton of left and right, and only valve seat also has several thousand kilograms, and the huge monster of super weight like this not only brings very large difficulty large to processing, and the support of flap and a sealing hang-up especially.
For current conventional axial flow type check valve, be also only applicable to the pipeline of 20 cun of following latus rectums.Between sealing surface of seat and valve clack sealing surface, adopt conical surface seal, the afterbody of flap has guide rod, and guide rod external diameter is provided with spring, and in the time of medium back flow, reaction force makes the flap conical surface contact with the valve seat conical surface, to stop medium back flow.The safety check of this kind of seal form, cannot be applied to large bore valves.The one, because, large bore valves, because size is large, Heavy Weight, sealing cone is difficult to processing; The 2nd, because large bore valves is generally applied to the pipeline that pressure medium is large, the super large weight of valve self in addition, the support difficulty of spool is quite large, only depends on the flow resistance of rod-support at rear portion to realize.
Summary of the invention
Technical barrier to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of heavy caliber axial flow type check valve is provided, and by front and back dual support, makes flap stress balance, and moving equilibrium is reliable, and good seal performance.
Technical solution of the present utility model is, comprises valve body 1, valve seat 2 and flap 5, and valve seat 2 is embedded on valve body 1, and flap 5 is placed in valve pocket, it is characterized in that: in valve body 5, be also provided with air guide sleeve 12, it is conical that air guide sleeve 12 bodies are, and coaxially arranges with valve body 1; The central authorities of air guide sleeve 12 are provided with supporting tube 8, and the bottom of air guide sleeve 12 is provided with air guide sleeve base 11, and supporting tube 8 is connected as a whole by stiffening rib 13,10 with air guide sleeve 12 bodies respectively with air guide sleeve base 11; The inner side of valve seat 2 is provided with supporting frame 3; Flap 5 is "T"-shaped, and its T shape bar is provided with spring 7, and inserts in the supporting tube 8 of air guide sleeve 12 central authorities, is slidably matched, and supports wherein with it; On the T shape end face of flap 5, be connected with supporting slider 4, its supporting slider 4 is supported on supporting frame 3, and is slidably matched with it.
Supporting frame 3 is made up of inside and outside two circles, and its outer ring is welded on valve seat 2 and valve body 1, and inner ring is provided with central through bore that can supported slide bar 4.
On the T shape end face of flap 5, be connected with supporting slider 4 by screw thread.
On the sealing surface of flap 5T shape end face, on the sealing surface of valve seat 2 end faces, heap is welded with hard alloy layer respectively.
On valve seat 2, be also provided with the O-ring seals 6 of anti-explosion type.
The profile of valve body 1 is horizontal " bottle " shape.
The utility model and prior art compare, the advantage possessing, and soft or hard double seal, sealing is reliable; The forward and backward balanced type dual support of T-valve lobe, makes flap can overcome the gravity of self, and unrestricted motion is vertically steadily without jam; Valve body is designed to " bottle " shape, and pressure medium is effectively discharged in valve body, has ensured that the long-term safety of large bore valves is used, the working life of having improved valve; Air guide sleeve both can carry out water conservancy diversion to medium, can support flap again, made the utility model realize heavy caliber check function.
drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing in figure.
Number in the figure: 1-valve body, 2-valve seat, 3-supporting frame, 4-supporting slider, 5-flap, 6-seal ring, 7-spring, 8-supporting tube, 9-hexagon socket head cap screw .10-stiffening rib, 11-air guide sleeve base, 12-air guide sleeve, 13-stiffening rib.
Embodiment
The utility model relates to a kind of heavy caliber axial flow type check valve, is mainly made up of valve body 1, valve seat 2, flap 5, spring 7 and air guide sleeve 12, and valve seat 2 is embedded on valve body 1, and flap 5 and air guide sleeve 12 are placed in valve pocket.
It is conical that air guide sleeve 12 bodies are, and coaxially arranges with valve body 1; The central authorities of air guide sleeve 12 are provided with supporting tube 8, and the bottom of air guide sleeve 12 is provided with air guide sleeve base 11, and supporting tube 8, air guide sleeve base 11, stiffening rib 13, stiffening rib 10 and air guide sleeve 12 are cast (or welding) as a whole.Air guide sleeve 12 is fixed on valve body 1 by hexagon socket head cap screw 9 by air guide sleeve base 11.
The inner side of valve seat 2 is provided with supporting frame 3, and supporting frame 3 is made up of inside and outside two circles, and its outer ring is welded on valve seat 2 and valve body 1, and inner ring is provided with a central through bore.
5 one of flaps are supported on air guide sleeve 12 by supporting tube 8, other end is supported on supporting frame 3 by the supporting slider 4 on end face, by two end supports, makes flap 5 under the effect of pressure medium or spring force, do straight reciprocating motion, to realize opening or closing of valve.
In order to improve the wear-resisting property of sealing surface, on the sealing surface of the T shape end face of flap 5 and on the sealing surface of valve seat 2 end faces, pile and be welded with hard alloy layer respectively.On valve seat 2, be also provided with the O-ring seals 6 of anti-explosion type, make the unlatching of flap 5 more flexible, and while closing, sealability is more reliable.
The profile of valve body 1 is horizontal " bottle " shape, and pressure medium is effectively discharged in valve body (1), has ensured that the long-term safety of large bore valves is used, the working life of having improved valve.
Claims (7)
1. a heavy caliber axial flow type check valve, comprise valve body (1), valve seat (2) and flap (5), valve seat (2) is embedded on valve body (1), flap (5) is placed in valve pocket, it is characterized in that: in valve body (1), be also provided with air guide sleeve (12), it is conical that air guide sleeve (12) body is, and coaxially arranges with valve body (1); The central authorities of air guide sleeve (12) are provided with supporting tube (8), the bottom of air guide sleeve (12) is provided with air guide sleeve base (11), and supporting tube (8) is connected as a whole by stiffening rib (13,10) with air guide sleeve (12) body respectively with air guide sleeve base (11); The inner side of valve seat (2) is provided with supporting frame (3); Flap (5) is "T"-shaped, and its T shape bar is provided with spring (7), and inserts in the supporting tube (8) of air guide sleeve (12) central authorities, is slidably matched, and supports wherein with it; On the T shape end face of flap (5), be connected with supporting slider (4), it is upper that its supporting slider (4) is supported in supporting frame (3), and be slidably matched with it.
2. a kind of heavy caliber axial flow type check valve as claimed in claim 1, is characterized in that: supporting frame (3) is made up of inside and outside two circles, and it is upper that its outer ring is welded on valve seat (2) and valve body (1), and inner ring is provided with central through bore that can supported slide bar (4).
3. a kind of heavy caliber axial flow type check valve as claimed in claim 1 or 2, is characterized in that: on the T shape end face of flap (5), be connected with supporting slider (4) by screw thread.
4. a kind of heavy caliber axial flow type check valve as claimed in claim 1 or 2, is characterized in that: on the sealing surface of flap (5) T shape end face, on the sealing surface of valve seat (2) end face, heap is welded with hard alloy layer respectively.
5. a kind of heavy caliber axial flow type check valve as claimed in claim 1 or 2, is characterized in that: the O-ring seals (6) that is also provided with anti-explosion type on valve seat (2).
6. a kind of heavy caliber axial flow type check valve as claimed in claim 1 or 2, is characterized in that: air guide sleeve (12) is fixed on valve body (1) by hexagon socket head cap screw (9) by air guide sleeve base (11).
7. a kind of heavy caliber axial flow type check valve as claimed in claim 1 or 2, is characterized in that: the profile of valve body (1) is horizontal " bottle " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028591.9U CN203686272U (en) | 2014-01-17 | 2014-01-17 | Large-caliber axial-flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028591.9U CN203686272U (en) | 2014-01-17 | 2014-01-17 | Large-caliber axial-flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686272U true CN203686272U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028591.9U Expired - Fee Related CN203686272U (en) | 2014-01-17 | 2014-01-17 | Large-caliber axial-flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686272U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727273A (en) * | 2014-01-17 | 2014-04-16 | 江苏苏盐阀门机械有限公司 | Heavy-caliber axial flow type check valve |
| CN108105792A (en) * | 2017-12-18 | 2018-06-01 | 青岛瑞莱德电力设备有限公司 | Retractable soot blower with bivalve flap seal |
| CN113513616A (en) * | 2021-05-19 | 2021-10-19 | 兰州理工大学 | Flow channel type value curve design method and axial flow type check valve |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
-
2014
- 2014-01-17 CN CN201420028591.9U patent/CN203686272U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727273A (en) * | 2014-01-17 | 2014-04-16 | 江苏苏盐阀门机械有限公司 | Heavy-caliber axial flow type check valve |
| CN108105792A (en) * | 2017-12-18 | 2018-06-01 | 青岛瑞莱德电力设备有限公司 | Retractable soot blower with bivalve flap seal |
| CN108105792B (en) * | 2017-12-18 | 2019-12-13 | 青岛瑞莱德电力设备有限公司 | Telescopic soot blower with double-valve-clack seal |
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
| CN113513616A (en) * | 2021-05-19 | 2021-10-19 | 兰州理工大学 | Flow channel type value curve design method and axial flow type check valve |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20210117 |