CN103133728B - Large-diameter mute quickly-closed check valve - Google Patents
Large-diameter mute quickly-closed check valve Download PDFInfo
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- CN103133728B CN103133728B CN201310037314.4A CN201310037314A CN103133728B CN 103133728 B CN103133728 B CN 103133728B CN 201310037314 A CN201310037314 A CN 201310037314A CN 103133728 B CN103133728 B CN 103133728B
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Abstract
The invention discloses a large-diameter mute quickly-closed check valve which comprises a valve body provided with medium circulation tubes at two ends. A valve seat is arranged in the valve body. The large-diameter mute quickly-closed check valve further comprises a diversion body check valve core arranged in the valve body, a support moving structure for supporting the diversion body check valve core, a sliding block connected with the diversion body check valve core, a sliding rod connected with the sliding block, and a non-return driving structure with one end contacted with the sliding block and used for driving the sliding block to perform non-return movement. The diversion body check valve core in the large-diameter mute quickly-closed check valve adopts a movable structure, namely the diversion effect and the sealing effect are played, the whole structure is convenient to install, the support moving structure is used for supporting the diversion body check valve core, the supporting is stable, and operation is stable.
Description
Technical field
The invention belongs to water supply line control valve, be specifically related to pipe line check valve in a kind of large-scale pipeline.
Background technique
The safety check adopted in the large-scale pipeline of water delivery of existing more than 1 meter comprises butterfly check valve, and the flap of this structure needs external connection power when closing, and structural configuration comparatively bothers, in addition, flap, when rotary closing, because the effect of current can produce vibrations, affects the normal operation of valve.Existing a kind of quick closing type safety check, flap moves in fixing deflector, and the movement guide structure of flap installs inconvenience, and the flow coefficient of this valve is little simultaneously, and water is relatively large by damage by water in valve process through pipeline.
Summary of the invention
The object of the present invention is to provide guide structure in the large-scale pipeline of the water delivery of a kind of more than 1 meter simple, large-diameter mute quick-closure check valve easy for installation, solves the problem.
Technological scheme of the present invention is: large-diameter mute formula quick-closure check valve, and it comprises the valve body that two ends offer medium circulation tube, and be provided with valve seat in valve body, it also comprises:
Establish in valve body:
Deflector non-return valve core: deflector non-return valve core has non-return sealing surface, the Contact of non-return sealing surface and valve seat seals, described deflector non-return valve core is arranged in the cavity of valve body housing formation in face of media flow direction, forms water conservancy diversion runner between the guide face of described deflector non-return valve core and valve body inner walls;
Support moving structure: described deflector non-return valve core is supported on and supports on moving structure;
Slide block: be connected with described deflector non-return valve core;
Slide bar: be connected with described slide block;
Non-return driving structure: one end of non-return driving structure and shoe contact, drives slide block to do non-return and moves.
Deflector non-return valve core in the present invention adopts portable structure, namely plays the effect of water conservancy diversion, has the effect playing sealing, and overall structure is convenient to install, and supporting moving structure for supporting deflector non-return valve core, supporting more stable, running more steady.
Described valve body comprises front valve shell and rear valve body, connects sealing between front valve shell and rear valve body.Split type valve body structure is convenient to valve inner structure and is comprised the installation supporting moving structure, deflector non-return valve core etc.
Described valve body offers the mounting hole of valve body inner structure, mounting hole is connected with valve gap and seals; Water conservancy diversion runner is formed between the guide face of described deflector non-return valve core and valve body inner walls, valve gap inwall.
The shape of described deflector non-return valve core is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
The shape of above-mentioned diversion check spool can ensure that its damage by water in runner is minimum, does not cause water hammer in its fast moving process simultaneously.
Described support moving structure comprises the supporting track be fixed in valve body, is arranged at the moving member on supporting track, the connection that described moving member is connected with described deflector non-return valve core.This support moving structure makes deflector non-return valve core move steadily, and particularly in the large-scale pipeline of water delivery of existing more than 1 meter, deflector non-return valve core moves steadily can reduce and runs vibrations, reduction damage by water, avoids the generation of water hammer.
Described non-return driving structure comprises sleeve, is provided with guide rod, is provided with check spring between guide rod and slide block in sleeve.Said structure is simple, and be convenient to mounting arrangements in valve body, the resistance of quick non-return action is little.
Guide rod and slide bar are coaxially set to overall rod member, slide block set is located on slide bar, guide rod end establishes check spring pretightening force adjust structure, reduce the component in valve body, be convenient to mounting arrangements in valve body, check spring pretightening force adjust structure ensures that the Applicable scope of valve is large on the one hand, extends shelf life on the other hand.
Check spring pretightening force adjust structure comprises adjustment barrel sheathed on guide rod, adjustment barrel one end and check spring end contact, and the other end of adjustment barrel contacts with adjustment gland.This structure is convenient to be arranged on valve body and/or valve gap.
Described sleeve is arranged on valve body and/or valve gap, forms overall structure with valve body and/or valve gap.Such scheme can realize sleeve, valve body and/or valve gap entirety and manufacture, and makes compact structure.
The shape of the valve body inner walls at described water conservancy diversion runner place is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
The shape that the valve body inner walls at described water conservancy diversion runner place, valve gap inwall are formed is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
Technique scheme can ensure that the vertical area of water conservancy diversion runner is identical with the vertical area of medium circulation tube, improves flow coefficient, reduces damage by water simultaneously, avoid the generation of water hammer.
This valve is used for being arranged in large-scale pipeline, prevent from flowing backwards and eliminate the fast closed form safety check of water hammer volume, valve adopts the guide mechanism of track roller, adopt the driving mode that split spring non-return drives and waterpower self-acting combines, this structure is not by the restriction of valve aperture size, guide mechanism jam is little, and non-return is rapid, and spring force can externally adjust simultaneously.This valve feature has: when pipeline normal water supply, and valve cavity runner is continuous flow line type full runner lower resistance structure, and valve hydraulic loss is very low; When system termination of pumping or when closing valve, valve is by induction system flow velocity, quick closedown under spring-force driven dual power, quick non-return effectively eliminates water hammer simultaneously, because spring force is adjustable, the velocity of medium that valve can be made in theory to close when putting in place is just zero, then can reach the optimal effectiveness that quick non-return eliminates water hammer.
Accompanying drawing explanation
Fig. 1 large-diameter mute quick-closure check valve structure opening state looks schematic diagram.
Fig. 2 large-diameter mute quick-closure check valve structure non-return state looks schematic diagram.
Fig. 3 large-diameter mute quick-closure check valve structure II schematic diagram.
Embodiment
Embodiment 1
As shown in Figure 1, 2, valve body comprises front valve shell 101 and rear valve body 102, is connected sealing between front valve shell 101 and rear valve body 102 by front valve shell 101 with the flange arrangement 103 that rear valve body 102 is arranged.Front valve shell 101 comprises front end facility medium (water) and enters run 104, and rear valve body 102 comprises rearward end facility medium (water) and flows out run 105.Rear end and the leading portion with rear valve body 102 of front valve shell 101 form the installation cavity 106 of valve body inner structure.
The end that the medium (water) of non-return direction the present embodiment front valve shell 101 of valve body enters run 104 is provided with valve seat 107.
Install in cavity 106 and be provided with support moving structure, according to caliber in the present embodiment, suffered carrying, in installation cavity 106 top and the bottom, left and right portion is equipped with support moving structure and forms stable movable support.Also can according to caliber, suffered by be carried on install cavity 106 one or two is only set or three support moving structures.
Support moving structure and comprise the supporting track 201 be fixed in valve body, be arranged at the moving member on supporting track.Moving member can adopt the slide carriage structure be connected with supporting track 201, also can adopt vehicle structure.Adopt vehicle structure in the present embodiment, vehicle structure comprises and connects dunnage 203, and connect in dunnage 203 and be connected with roller 204, this anatomical connectivity supports more stable, and moving resistance is little simultaneously.Stroke limit structure can be provided with between supporting track 201 and moving member 202, can limiting stopper be adopted, the structure (not shown) such as block.
Install in cavity 106 and establish deflector non-return valve core 301, the shape of deflector non-return valve core is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.Deflector non-return valve core 301 has non-return sealing surface 302, non-return sealing surface 302 can be the frustum face coordinated with valve seat 107 that arranges on the surface of deflector non-return valve core or spherical crown surface, frustum face or spherical crown surface can protrude from deflector non-return valve core 301, also can not protrude from deflector non-return valve core 301.Non-return sealing surface 302 and valve seat 107 fitted seal can be hard sealing (non-return sealing surface 302 and valve seat 107 fitted seal surface of contact are all hard materials); Can be soft seal (non-return sealing surface 302 and valve seat 107 fitted seal surface of contact one are hard materials, and another is flexible material); Or soft or hard double-sealing (non-return sealing surface 302 and valve seat 107 fitted seal surface of contact had not only comprised the sealing that two hard materials seal but also comprise hard material and flexible material).
In the present embodiment, the shape of deflector non-return valve core 301 is by the tangent solid of rotation shape formed of multiple arc section, as sub warhead.
Deflector non-return valve core 301 rear end is connected with support 303.Support 303 is provided with balanced body 304.
Support 303 is provided with slide block 304.Support 303 is connected with moving member 202.
The present embodiment non-return driving structure comprises the sleeve 401 that rear valve body is arranged, and sleeve 401 and rear valve body are overall parts.Adjustment barrel 402 is located in sleeve 401, in adjustment barrel 402 sheathed on guide rod 403, guide rod 403 end is located at slide bar 404, is coaxial Step Shaft structure between guide rod 403 with slide bar 404, slide block 304 is set on slide bar 404, and the step of guide rod 403 end face realizes spacing to slide block 304.Sheathed check spring 405 on guide rod 403.Check spring 405 two ends contact with slide block 304 with adjustment barrel 402 respectively.Adjustment barrel 402 other end contacts with adjustment gland 406, regulates gland 406 the inner to be provided with and regulates cushion block 407, regulate cushion block 407 and adjustment barrel 402 end contact.Regulate gland 406 to be connected with rear valve body, sleeve 401 is sealed.The change of the length of cushion block 407 is regulated to realize the adjustment of check spring 405 pretightening force.Regulating cushion block 407 can be overall structures with adjustment gland 406, also can be that two splits connect.
Form water conservancy diversion runner 108 between deflector non-return valve core guide face and valve body inner walls, the shape of the valve body inner walls at water conservancy diversion runner place is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.The vertical area of water conservancy diversion runner 108 is identical with the vertical area of front valve shell 101.
Embodiment 2
As shown in Figure 3, valve body offers the mounting hole 501 of valve body inner structure, mounting hole is connected with valve gap 502 and seals; Water conservancy diversion runner is formed between the guide face of described deflector non-return valve core and valve body inner walls, valve gap inwall.The shape that the valve body inner walls at described water conservancy diversion runner place, valve gap inwall are formed is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.Structure in valve body is identical with the structure in embodiment 1, does not tire out at this and states.
Large-diameter mute formula quick-closure check valve working principle is as follows:
When pipeline normally runs, system flow rate is normal flow, the thrust that liquid acts on deflector non-return valve core to flow direction is greater than spring deboost, now deflector non-return valve core is directed to axle stop, be positioned at the position that in the middle of valve body, flow resistance is minimum, now valve resistance is little, and system damage by water is very little;
When termination of pumping or when closing valve (cutting off the water), system flow rate reduces, the thrust that liquid acts on deflector non-return valve core to flow direction is less than spring deboost, deflector non-return valve core starts to close under spring force, because valve flowing channel is ring runner, and valve closing stroke little (being less than 1/4 valve aperture), valve closing speed fast (also regulate by Regulation spring and close valve speed), when velocity of medium is zero, valve closing now pipeline water hammer theory is zero.Thus effectively eliminate water hammer.
Claims (9)
1. a large-diameter mute formula quick-closure check valve, it comprises the valve body that two ends offer medium circulation tube, is provided with valve seat in valve body, it is characterized in that it also comprises:
Establish in valve body:
Deflector non-return valve core: deflector non-return valve core has non-return sealing surface, the Contact of non-return sealing surface and valve seat seals, described deflector non-return valve core is arranged in the cavity of valve body housing formation in face of media flow direction, forms water conservancy diversion runner between the guide face of described deflector non-return valve core and valve body inner walls;
Support moving structure: described deflector non-return valve core is supported on and supports on moving structure;
Slide block: be connected with described deflector non-return valve core;
Slide bar: be connected with described slide block;
Non-return driving structure: one end of non-return driving structure and shoe contact, drives slide block to do non-return and moves;
Described deflector non-return valve core rear end is connected with support; Support is provided with balanced body;
Described support is provided with slide block, and support is connected with moving member;
Described support moving structure comprises the supporting track be fixed in valve body, is arranged at the moving member on supporting track, the connection that described moving member is connected with described deflector non-return valve core;
Described moving member comprises connection dunnage, connects in dunnage and is connected with roller;
Described non-return driving structure comprises sleeve, is provided with guide rod, is provided with check spring between guide rod and slide block in sleeve.
2. large-diameter mute formula quick-closure check valve as claimed in claim 1, is characterized in that described valve body comprises front valve shell and rear valve body, connects sealing between front valve shell and rear valve body.
3. large-diameter mute formula quick-closure check valve as claimed in claim 1, is characterized in that the mounting hole described valve body offering valve body inner structure, mounting hole is connected with valve gap and seals; Water conservancy diversion runner is formed between the guide face of described deflector non-return valve core and valve body inner walls, valve gap inwall.
4. large-diameter mute formula quick-closure check valve as described in claim 1 or 3, is characterized in that the shape of described deflector non-return valve core is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
5. large-diameter mute formula quick-closure check valve as claimed in claim 1, it is characterized in that guide rod and slide bar are coaxially set to overall rod member, slide block set is located on slide bar, and guide rod end establishes check spring pretightening force adjust structure.
6. large-diameter mute formula quick-closure check valve as claimed in claim 5, is characterized in that check spring pretightening force adjust structure comprises adjustment barrel sheathed on guide rod, adjustment barrel one end and check spring end contact, and the other end of adjustment barrel contacts with adjustment gland.
7. large-diameter mute formula quick-closure check valve as claimed in claim 1, is characterized in that described sleeve is arranged on valve body and/or valve gap, forms overall structure with valve body and/or valve gap.
8. large-diameter mute formula quick-closure check valve as claimed in claim 1, is characterized in that the shape of the valve body inner walls at described water conservancy diversion runner place is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
9. large-diameter mute formula quick-closure check valve as claimed in claim 1, is characterized in that the shape that the valve body inner walls at described water conservancy diversion runner place, valve gap inwall are formed is corresponding with the shape of deflector non-return valve core, is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape formed of multiple arc section; Or by the tangent solid of rotation formed of multiple arc section, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape formed of Rotary-table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037314.4A CN103133728B (en) | 2013-01-31 | 2013-01-31 | Large-diameter mute quickly-closed check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037314.4A CN103133728B (en) | 2013-01-31 | 2013-01-31 | Large-diameter mute quickly-closed check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103133728A CN103133728A (en) | 2013-06-05 |
| CN103133728B true CN103133728B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310037314.4A Active CN103133728B (en) | 2013-01-31 | 2013-01-31 | Large-diameter mute quickly-closed check valve |
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| CN (1) | CN103133728B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531177B (en) * | 2021-09-13 | 2021-11-19 | 南通众扬管业科技有限公司 | Valve structure without valve rod and resisting water hammer effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0172364A1 (en) * | 1984-07-09 | 1986-02-26 | Hugo Rickenbach | Explosion safeguard valve |
| CN201326788Y (en) * | 2008-12-26 | 2009-10-14 | 大众阀门集团有限公司 | Two-stage damping axial-flow type check valve with adjustable closing time |
| CN201621311U (en) * | 2010-03-25 | 2010-11-03 | 徐鹤 | Axial-flow sleeve adjusting control valve |
| CN203082280U (en) * | 2013-01-31 | 2013-07-24 | 武汉大禹阀门股份有限公司 | Heavy-caliber mute quick closing check valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH606882A5 (en) * | 1977-02-11 | 1978-11-15 | Hugo Rickenbach | Explosion and flame blow-back protection valve - has hollow plastics filled valve body readjusted for operation after explosion |
-
2013
- 2013-01-31 CN CN201310037314.4A patent/CN103133728B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0172364A1 (en) * | 1984-07-09 | 1986-02-26 | Hugo Rickenbach | Explosion safeguard valve |
| CN201326788Y (en) * | 2008-12-26 | 2009-10-14 | 大众阀门集团有限公司 | Two-stage damping axial-flow type check valve with adjustable closing time |
| CN201621311U (en) * | 2010-03-25 | 2010-11-03 | 徐鹤 | Axial-flow sleeve adjusting control valve |
| CN203082280U (en) * | 2013-01-31 | 2013-07-24 | 武汉大禹阀门股份有限公司 | Heavy-caliber mute quick closing check valve |
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| CN103133728A (en) | 2013-06-05 |
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Denomination of invention: Large caliber silent quick closing check valve Effective date of registration: 20230420 Granted publication date: 20150429 Pledgee: Bank of China Limited Wuhan Economic and Technological Development Zone sub branch Pledgor: WUHAN DAYU VALVE Co.,Ltd. Registration number: Y2023420000169 |
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