CN103133729A - Diversion damper slowly-closed check valve - Google Patents
Diversion damper slowly-closed check valve Download PDFInfo
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- CN103133729A CN103133729A CN2013100373163A CN201310037316A CN103133729A CN 103133729 A CN103133729 A CN 103133729A CN 2013100373163 A CN2013100373163 A CN 2013100373163A CN 201310037316 A CN201310037316 A CN 201310037316A CN 103133729 A CN103133729 A CN 103133729A
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- conservancy diversion
- water conservancy
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Abstract
The invention discloses a diversion damper slowly-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 diversion damper slowly-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 other end of the sliding rod is connected with a moving damper structure. The diversion body check valve core in the diversion damper slowly-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. The moving damper structure can produce resistance to movement of the sliding block and the diversion body check valve core, quick movement is avoided, and dismantle of a pipeline water hammer and protection of a pipeline and a water pump are achieved through slow closing.
Description
Technical field
The invention belongs to the 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 that adopts in the existing large-scale pipeline of water delivery 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 because the effect of current can produce vibrations, affects the normal operation of valve when rotary closing.Existing a kind of quick closing type safety check, flap moves in fixing deflector, and the movement guide structure of flap is installed inconvenience, and the flow coefficient of this valve is little simultaneously, and it is relatively large that water is crossed in the valve process damage by water through device for cleaning pipeline; Simultaneously, the valve of said structure can not be realized Slow Close.
Summary of the invention
The object of the present invention is to provide simple, the easy for installation water conservancy diversion damping buffer valve of guide structure in the large-scale pipeline of a kind of water delivery more than 1 meter, address the above problem.
Technological scheme of the present invention is: water conservancy diversion damping buffer valve, and it comprises that two ends offer the valve body of MEDIA FLOW siphunculus, is provided with valve seat in valve body, it is characterized in that it also comprises:
Establish in valve body:
The deflector non-return valve core: the deflector non-return valve core has the non-return sealing surface, contact sealing between non-return sealing surface and valve seat, described deflector non-return valve core is arranged in face of the media flow direction in the cavity of valve body housing formation, forms the 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;
The non-return driving structure: an end of non-return driving structure contacts with slide block, and the driving slide block is done non-return and moved;
It also comprises:
The kinetic damping structure is connected with the slide bar the other end.
Deflector non-return valve core in the present invention adopts portable structure, namely plays the effect of water conservancy diversion, and the effect of the sealing played is arranged, and overall structure is convenient to install, and supports moving structure and is used for supporting the deflector non-return valve core, supports more stablely, moves more steady; The kinetic damping structure can produce resistance to the motion of slide block and deflector non-return valve core, avoids its fast moving, realizes laying down pipeline water hammer protection pipeline and water pump by Slow Close.
The kinetic damping structure can be the damping spring structure that connects at the slide bar the other end, can be the damping oil cylinder structure that the slide bar the other end connects, and can be damping magnet structure etc.
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 the valve inner structure and is comprised the installation of supporting moving structure, deflector non-return valve core etc.
Offer the mounting hole of valve body inner structure on described valve body, be connected sealing on mounting hole with valve gap; Form the water conservancy diversion runner 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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
The shape of above-mentioned diversion check spool can guarantee 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 that is 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 the deflector non-return valve core move steadily, and particularly in the existing large-scale pipeline of water delivery more than 1 meter, the deflector non-return valve core moves steady can the minimizing operation vibrations, reduce damage by water, avoids the generation of water hammer.
Described non-return driving structure comprises sleeve, is provided with guide rod in sleeve, is provided with check spring between guide rod and slide block.Said structure is simple, is convenient to mounting arrangements in valve body, and the resistance of non-return action is little fast.
Guide rod and slide bar be coaxial is set to whole rod member, slide block set is located on slide bar, the guide rod end is established the check spring pretightening force and is adjusted structure, reduce the component in valve body, be convenient to mounting arrangements in valve body, the check spring pretightening force is adjusted structure and is guaranteed that on the one hand the Applicable scope of valve is large, extends shelf life on the other hand.
The check spring pretightening force is adjusted structure and is comprised adjustment barrel sheathed on guide rod, adjustment barrel one end and check spring end contact, and the other end of adjustment barrel contacts with the adjusting gland.This structure is convenient to it is 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 be realized the whole manufacturing of sleeve, valve body and/or valve gap, makes compact structure.
Described slide bar comprises three sections, is the guide rod section successively, slide block glissile segment and damping linkage section; Establish the slide block limited step between slide block glissile segment and guide rod section, slide block glissile segment and damping linkage section, the damping linkage section connects described kinetic damping structure.
The setting of being convenient to damping structure of this structure, establish the slide block limited step between what is more important slide block glissile segment and guide rod section, slide block glissile segment and damping linkage section, can guarantee that slide block has one section fast moving distance, when making deflector non-return valve core non-return, first fast moving moves at a slow speed again.
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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
The shape that the valve body inner walls at described water conservancy diversion runner place, valve gap inwall consist of 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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
Technique scheme can guarantee that the vertical area of water conservancy diversion runner is identical with the vertical area of MEDIA FLOW siphunculus, improves flow coefficient, reduces simultaneously damage by water, avoids the generation of water hammer.
The flow guide type hydrauliccontrol non-return valve is a kind of for being arranged on large-scale pipeline, prevent from flowing backwards and eliminate the Slow Close type safety check of water hammer, valve adopts the guide mechanism of track roller, adopt the driving mode that split spring non-return drives and the waterpower self-acting combines with damping device, this structure is not subjected to the restriction of valve aperture size, the guide mechanism jam is little, and non-return is controlled by damping device, and non-return strength can externally be adjusted simultaneously.
The characteristics of this valve have:
1. when the pipeline normal water supply, the valve cavity runner is the full runner lower resistance of continuous flow line type structure, and the valve hydraulic loss is very low;
2. when system's termination of pumping or pass valve, valve is by the induction system flow velocity, quick closedown is a bit of under the non-return active force, when deflector closes to the damping position, begin to carry out the Slow Close program, the Slow Close process has damping device to control fully, and valve closes at last aperture and can regulate setting by position-limiting unit simultaneously.
Description of drawings
The apolipsis of Fig. 1 water conservancy diversion damping slow is returned the valve arrangement opening state and is looked schematic diagram.
Fig. 2 water conservancy diversion damping buffer valve non-return state is looked schematic diagram.
Fig. 3 water conservancy diversion damping buffer valve II schematic diagram.
Embodiment
Embodiment 1
As shown in Figure 1, 2, valve body comprises front valve shell 101 and rear valve body 102, and the flange arrangement 103 that arranges on passing through front valve shell 101 and rear valve body is connected between front valve shell 101 and rear valve body 102 connects sealing.Front valve shell 101 comprises that front end facility medium (water) enters run 104, and rear valve body 102 comprises that rearward end facility medium (water) flows out run 105.The rear end of front valve shell 101 with and the leading portion of rear valve body 102 consist of 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 the support moving structure, in the present embodiment, according to caliber, cavity 106 top and the bottom are being installed in suffered carrying, and left and right section is equipped with and supports moving structure and consist of stable movable support.Also can be according to caliber, suffered being carried on installed 106 of cavitys and one or two or three are set are supported moving structures.
Support moving structure and comprise the supporting track 201 that is fixed in valve body, be arranged at the moving member on supporting track.Moving member can adopt the slide carriage structure that is connected with supporting track 201, also can adopt vehicle structure.Adopt vehicle structure in the present embodiment, vehicle structure comprises connection dunnage 203, connects on dunnage 203 to be connected with roller 204, and it is more stable that this structure connects support, and moving resistance is little simultaneously.The stroke limit structure can be provided with between supporting track 201 and moving member 202, the structure (not shown) such as limiting stopper, block can be adopted.
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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of 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 or the spherical crown surface that coordinate with valve seat 107 that arranges on deflector non-return valve core 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 can be hard sealing (non-return sealing surface 302 is all hard materials with valve seat 107 fitted seal surface of contact) with valve seat 107 fitted seal; Can be soft seal (non-return sealing surface 302 is hard material with one of valve seat 107 fitted seal surface of contact, 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 two hard materials sealings but also comprised the sealing of 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 that forms of a plurality of arc sections, as sub warhead.
Deflector non-return valve core 301 rear ends are connected with support 303.Support 303 is provided with balanced body 304.
Slide bar comprises three sections, is that guide rod section 403(is guide rod successively), slide block glissile segment 404(is the slide bar of sheathed slide block) and damping linkage section 408.
The present embodiment non-return driving structure comprises the sleeve 401 that arranges on rear valve body, and sleeve 401 is whole parts with rear valve body.Adjustment barrel 402 is located in sleeve 401, on guide rod section 403 in sheathed adjustment barrel 402, guide rod section 403 ends are located at slide block glissile segment 404, it is coaxial Step Shaft structure between guide rod section 403 and slide block glissile segment 404, slide block 400 is set on slide block glissile segment 404, and 410 pairs of slide blocks 400 of the step of guide rod section 403 end faces are realized spacing.Slide block limited step 409 between slide block glissile segment 404 and damping linkage section 408, namely 409 pairs of slide blocks 400 of step of damping linkage section 408 end faces are realized spacing.The length of slide block glissile segment 404 is slide block undamped displacement distance.
Sheathed check spring 405 on guide rod section 403.Check spring 405 two ends contact with slide block 400 with adjustment barrel 402 respectively.Adjustment barrel 402 other ends contacts with regulating gland 406, regulate gland 406 the inners and are provided with and regulate cushion block 407, regulate cushion block 407 and adjustment barrel 402 end contacts.Regulate gland 406 and be connected with rear valve body, with sleeve 401 sealings.The variation of regulating the length of cushion block 407 realizes the adjusting of check spring 405 pretightening forces.Regulating cushion block 407 can be overall structures with regulating gland 406, can be also that two splits connect.
In the present embodiment, damping device 450 is located at outside valve body, and damping linkage section 408 passes valve body and sealing with it, and damping linkage section 408 ends that pass valve body are connected with the piston rod of damping oil cylinder 451.Damping oil cylinder 451 can be ZL2010101502736 valve slow opening Slow Close damping device.
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 a part of ellipsoidal shape; Or by the tangent solid of rotation shape that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of 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, offer the mounting hole 501 of valve body inner structure on valve body, be connected sealing with valve gap 502 on mounting hole; Form the water conservancy diversion runner 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 consist of 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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.Structure in valve body is identical with the structure in embodiment 1, not this tired stating.
Heavy caliber squelch type quick-closure check valve working principle is as follows:
When pipeline normally moves, system flow rate is normal flow, liquid acts on the thrust of deflector non-return valve core greater than the spring deboost to flow direction, this moment, the deflector non-return valve core was directed to axle stop, be positioned at the position of the middle flow resistance minimum of valve body, this moment, the valve resistance was little, and system's damage by water is very little;
When termination of pumping or pass valve (cutting off the water), system flow rate reduces, liquid acts on the thrust of deflector non-return valve core less than the spring deboost to flow direction, the deflector non-return valve core begins to close under spring-force driven dual, because valve flowing channel is ring runner, and valve closing stroke little (less than 1/4 valve aperture), valve closing speed fast (also can regulate the valve speed of closing by Regulation spring), when velocity of medium is zero, valve closing, be zero this moment on the pipeline water hammer theory.Thereby effectively eliminate water hammer.
Claims (11)
1. water conservancy diversion damping buffer valve, it comprises that two ends offer the valve body of MEDIA FLOW siphunculus, is provided with valve seat in valve body, it is characterized in that it also comprises:
Establish in valve body:
The deflector non-return valve core: the deflector non-return valve core has the non-return sealing surface, contact sealing between non-return sealing surface and valve seat, described deflector non-return valve core is arranged in face of the media flow direction in the cavity of valve body housing formation, forms the 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;
The non-return driving structure: an end of non-return driving structure contacts with slide block, and the driving slide block is done non-return and moved;
It also comprises:
The kinetic damping structure is connected with the slide bar the other end.
2. water conservancy diversion damping buffer 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. water conservancy diversion damping buffer valve as claimed in claim 1 is characterized in that offering on described valve body the mounting hole of valve body inner structure being connected sealing on mounting hole with valve gap; Form the water conservancy diversion runner between the guide face of described deflector non-return valve core and valve body inner walls, valve gap inwall.
4. as water conservancy diversion damping buffer valve as described in claim 1 or 3, the shape that it is characterized in that described deflector non-return valve core is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
5. water conservancy diversion damping buffer valve as claimed in claim 1, it is characterized in that described support moving structure comprises the supporting track that is fixed in valve body, be arranged at the moving member on supporting track, the connection that described moving member is connected with described deflector non-return valve core.
6. water conservancy diversion damping buffer valve as claimed in claim 1, is characterized in that described non-return driving structure comprises sleeve, is provided with guide rod in sleeve, is provided with check spring between guide rod and slide block; Slide block set is located on slide bar, and the guide rod end is established the check spring pretightening force and adjusted structure.
7. water conservancy diversion damping buffer valve as claimed in claim 6 is characterized in that the check spring pretightening force adjusts structure and comprise adjustment barrel sheathed on guide rod, adjustment barrel one end and check spring end contact, and the other end of adjustment barrel contacts with the adjusting gland.
8. water conservancy diversion damping buffer valve as claimed in claim 6, 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.
9. water conservancy diversion damping buffer valve as claimed in claim 1, is characterized in that slide bar comprises three sections, is the guide rod section successively, slide block glissile segment and damping linkage section; Establish the slide block limited step between slide block glissile segment and guide rod section, slide block glissile segment and damping linkage section, the damping linkage section connects described kinetic damping structure.
10. water conservancy diversion damping buffer valve as claimed in claim 1 is characterized in that the shape of 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 that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
11. water conservancy diversion damping buffer valve as claimed in claim 1 is characterized in that the valve body inner walls at described water conservancy diversion runner place, shape that the valve gap inwall consists of are corresponding with the shape of deflector non-return valve core, is a part of ellipsoidal shape; Or by the tangent solid of rotation shape that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, 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 that consists of of Rotary-table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037316.3A CN103133729B (en) | 2013-01-31 | 2013-01-31 | Diversion damper slowly-closed check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037316.3A CN103133729B (en) | 2013-01-31 | 2013-01-31 | Diversion damper slowly-closed check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103133729A true CN103133729A (en) | 2013-06-05 |
| CN103133729B CN103133729B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310037316.3A Active CN103133729B (en) | 2013-01-31 | 2013-01-31 | Diversion damper slowly-closed check valve |
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| Country | Link |
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| CN (1) | CN103133729B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413122A (en) * | 2018-01-24 | 2018-08-17 | 江苏中兴水务有限公司 | A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method |
| CN109058500A (en) * | 2018-10-30 | 2018-12-21 | 博纳斯威阀门股份有限公司 | Colliding energy dissipation axial-flow type ring taps valve |
| CN112555433A (en) * | 2020-12-23 | 2021-03-26 | 福建福清核电有限公司 | Cold bonding device and method for sealing rubber strip of valve seat of butterfly check valve |
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| CN201462114U (en) * | 2009-07-10 | 2010-05-12 | 上海华通阀门有限公司 | Slow-closure axial-flow check valve |
| CN202252178U (en) * | 2011-09-21 | 2012-05-30 | 铁岭方众阀门有限公司 | Adjustable two-section damping axial flow type check valve |
| CN203082282U (en) * | 2013-01-31 | 2013-07-24 | 武汉大禹阀门股份有限公司 | Diversion damping slowly-closing check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6607342A (en) * | 1966-05-27 | 1967-11-28 | ||
| US3995658A (en) * | 1974-06-12 | 1976-12-07 | Societe Des Clapets T.J., Socla | Non-return valve |
| US4747426A (en) * | 1986-04-02 | 1988-05-31 | Mokveld Valves B.V. | Check valve |
| DE3829726A1 (en) * | 1988-09-01 | 1990-05-17 | Waldenmaier J E H | Pilot-controlled pressure-shock auxiliary outlet valve |
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| US6230734B1 (en) * | 1999-02-23 | 2001-05-15 | Otkrytoe Aktsioneirnoe Obschestvo “Nauchnoproizvodstvennoeobiendinene “Energomash” Imeni Akademika V.P.Glushko” | Flow-rate controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413122A (en) * | 2018-01-24 | 2018-08-17 | 江苏中兴水务有限公司 | A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method |
| CN109058500A (en) * | 2018-10-30 | 2018-12-21 | 博纳斯威阀门股份有限公司 | Colliding energy dissipation axial-flow type ring taps valve |
| CN112555433A (en) * | 2020-12-23 | 2021-03-26 | 福建福清核电有限公司 | Cold bonding device and method for sealing rubber strip of valve seat of butterfly check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103133729B (en) | 2015-01-14 |
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Denomination of invention: Diversion damping slow closing check valve Effective date of registration: 20230420 Granted publication date: 20150114 Pledgee: Bank of China Limited Wuhan Economic and Technological Development Zone sub branch Pledgor: WUHAN DAYU VALVE Co.,Ltd. Registration number: Y2023420000169 |