CN102359625B - Flexible sealed multifunctional pump station valve - Google Patents
Flexible sealed multifunctional pump station valve Download PDFInfo
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- CN102359625B CN102359625B CN 201110318734 CN201110318734A CN102359625B CN 102359625 B CN102359625 B CN 102359625B CN 201110318734 CN201110318734 CN 201110318734 CN 201110318734 A CN201110318734 A CN 201110318734A CN 102359625 B CN102359625 B CN 102359625B
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Abstract
The invention relates to the technical field of pump valve manufacturing, in particular to a flexible sealed multifunctional pump station pump. A valve shaft with a penetrative structure is communicated to a rigid shell from top to bottom; the upper side end and the lower side end of the rigid shell with a spherical structure are respectively provided with an upper short pipe, a front guide frame and a rear guide frame, and a lower short pipe; a bulge at the side of the rigid shell is provided with a nitrogen charging device; the inner side of the rigid shell is provided with a pressurized nitrogen layer; the inner side of the pressurized nitrogen layer is provided with a nylon reinforced rubber layer; the lateral edge of a flexible valve with a bowl-shaped structure is adhered to the inner side of the nylon reinforced rubber layer in an extending way; the nylon reinforced rubber layer is fixed between flanges of the front guide frame and the rear guide frame and a flange of the rigid shell; and the inner wall of the flexible valve and the inner wall of the rigid shell form flexible surface seal with same curvature. The flexible sealed multifunctional pump station pump has the advantages of novel whole structure, safety and reliability, low manufacturing cost, long service life, large application range and capability of effectively preventing water hammering.
Description
Technical field:
The invention belongs to the pump valve preparing technical field, relate to the safety check that a kind of multi-functional pumping plant is used, particularly a kind of flexible sealed multifunctional pump station valve.
Background technique:
In the technology and equipment of fluid transport process, exit of pump used all need be installed safety check usually, for guaranteeing the security of operation of water pump, no matter is national standard drawing or facility installation drawing, all requires every exit of pump that safety check is installed.Usually, the effect of safety check is that the protection pump motor is not burnt, when accidental shutdown or when having a power failure suddenly; if the uneasy loaded check valve of exit of pump; the pipeline medium flows backwards and will cause the water pump counter-rotating, and during greater than 1.1 times of positive rotary speeds, pump motor just easily burns when speed reversal.At present, the improvement of the safety check that water pump is used and development are divided into several stages, and the development of safety check is exactly the development of non-return technology and perfect; The phase I product structure is Swing check valve, and it is simple in structure, can realize check function, but shortcoming is outstanding, and water hammer is serious; The product structure of second stage is Tiny Drag Slow Shut Check Valves and quick closing type safety check to have occurred for water hammer; Development along with the water hammer technology enters the phase III, the stage of namely taking as the leading factor with multifunctional water pump control valve; But no matter be which stage or safety check of any structure, all can not solve the safe operation problem under the high sediment environment take the Huanghe valley as representative; Take Huanghe water as example, the Yellow River is our mother river, the Yellow River comprise along the line drink, ten thousand of the thousands of one-tenth of pumping plant of agricultural, industrial water, its safety check that generally uses at present do not have a kind of can be ideally safe operation under such operating mode, cause operation difficulty, Frequent Accidents; All safety check that use at present in addition are rigid construction, no matter Swing check valve the earliest, or Tiny Drag Slow Shut Check Valves, Silent check valve, then the multifunctional water pump control valve in leading market up till now, be all rigid construction, rigid construction is the basic reason that produces water hammer.End is got up, existing safety check is applied in pump technology ubiquity, and structural principle simple, water hammer is serious, the shortcomings such as fabricating cost is large, and safety in utilization is inadequate particularly can not well be applied to contain solid or dirt husky more water quality environment or occasion, in addition, existing safety check rigid construction is difficult to overcome its water hammer shortcoming, so Design and manufacture is a kind of, and can to overcome the safety check of new structure of existing safety check shortcoming imperative.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, solve the serious technical barrier of water hammer of present rigid construction safety check from principle and structure, provide a kind of perfect structure and principle not only to prevent reliably water hammer but also flexible sealed multifunctional pump station valve or safety check that can safe operation in silt.
To achieve these goals, the multifunctional pump station valve that the present invention relates to adopts flexible structure, comprises that stiff case, flexible valve, valve shaft three parts form; The stiff case structure is divided into three layers, is rigidity bearing course, pressurising blanket of nitrogen and nylon reinforcing rubber layer from outside to inside successively, and the nylon reinforcing rubber layer can stretch, and the pressurising blanket of nitrogen is determined the pressure of inflated with nitrogen according to different operating modes; The flexible face sealing pair is made of stiff case and flexible valve, and flexible valve can be stretched, and flexible valve has elasticity, can fold; Flexible valve is and the nylon reinforcing rubber layer of the stiff case bowl-shape nylon reinforcing rubber with curvature, and flexible valve is arranged on valve shaft, and the forward and backward leading truck of valve shaft by two ends is fixed in stiff case in the road.
Agent structure of the present invention comprises valve shaft, front nut, nut shim, pressing plate pad, pressing plate, upper short tube, front leading truck, stiff case, pressurising blanket of nitrogen, nitrogen charging device, nylon reinforcing rubber layer, rear leading truck, lower short tube, valve compressing tablet, valve nut, Returnning spring, pressure-bearing spring, pressure-bearing compression spring, back nut, Returnning spring pad and flexible valve; The valve shaft of ganging up the formula structure is ganged up stiff case and nested front nut, nut shim, pressing plate pad, pressing plate, flexible valve, valve compressing tablet, valve nut, Returnning spring, Returnning spring pad, pressure-bearing spring, pressure-bearing compression spring and the back nut of being shaped with successively from top to bottom; The stiff case of spherical structure two side ends up and down is shaped with respectively short tube, front leading truck and rear leading truck, lower short tube, the protruding place of the side of stiff case is shaped with nitrogen charging device, the inboard of stiff case is shaped with the pressurising blanket of nitrogen, and the inboard of pressurising blanket of nitrogen is shaped with the nylon reinforcing rubber layer; The inboard that is attached to the nylon reinforcing rubber layer is stretched at the avris place of the flexible valve of bowl structure; Stiff case and nylon reinforcing rubber layer are spherical structure, the curvature of flexible valve is identical with nylon reinforcing rubber layer curvature, the nylon reinforcing rubber layer of spherical structure is fixed between the flange of the flange of forward and backward leading truck and stiff case, forward and backward leading truck is fixed by upper and lower short tube and stiff case, flexible valve is fixed on valve shaft by the valve compressing tablet on pressing plate and valve nut, valve shaft is fixed in by front leading truck and rear leading truck in the middle of runner, and the inwall of flexible valve and stiff case forms the flexible face sealing with curvature.
The multifunctional pump station valve that the present invention relates to, when the flowing medium forward flow, when the valve shaft forward moved, flexible valve was subject to the pressure medium curvature and increases, and flap is affixed to valve shaft, and the runner flow section increases; When the flowing medium reverse flow, the valve shaft reversing motion, the flexible valve resilience, the valve outer rim seals with the nylon reinforcing rubber layer formation face of the stiff case of same material, identical curvature, thereby blocks pipeline, and the restriction liquid passes through; Flexible valve and nylon reinforcing rubber layer produce resiliently deformable under the effect of medium back flow inertia and backflow static pressure when sealing the medium reverse flow, form the first buffer function; The nylon reinforcing rubber layer is in the process of pressurized elongation, and the pressurising blanket of nitrogen of stiff case forms the second buffer function; The twice buffering prevents that water hammer from occuring; In addition, flexible face sealing due to flexible valve and the formation of nylon reinforcing rubber layer, to the sediment environment favorable sealing property, add to compare with multifunctional water pump control valve and cancelled epicoele and pipeline control system, become in sediment environment can safe and reliable operation safety check or pumping plant valve.
The present invention compared with prior art, the one, prevent that thoroughly water hammer from occuring, owing to being full flexible structure, calculate water hammer according to hydraulic formula and receive volume, determine the elongation of rubber wall and the volume of pressurising blanket of nitrogen, when the formation twice are received water hammer, utilize the quick closedown principle, the refluence speed of medium is controlled to minimum as far as possible, realize fundamentally avoiding water hammer; The 2nd, superior at the sediment environment performance, the face sealing that flexible structure forms is more suitable for the silt medium, has cancelled Slow Close pilot line and the cavity of other safety check complexity, and the alluvial of silt is on not impact of structural behaviour; The 3rd, loss of head is little, energy saving, and due to the flexible valve structure, deformable under pressure medium, with respect to rigid construction, resistance to water-flow is little, and it is streamlined that runner is, closer to fluid motion; The 4th, application is extensive, is applicable to the incident exit of pump of any Water Hammer, especially is the silt water conveyance conduit of representative take the Huanghe valley, and not only water hammer-resistant but also anti-silt are the safety check of a kind of energy safe operation; Its general structure is novel, and principle is simple, and is safe and reliable, low cost of manufacture, and long service life, accommodation is large, can effectively prevent water hammer.
Description of drawings:
Fig. 1 is overall structure principle schematic of the present invention.
Fig. 2 is that upper and lower short tube of the present invention is faced the structural principle schematic diagram.
Fig. 3 is that leading truck of the present invention is faced the structural principle schematic diagram.
Fig. 4 is the cross-sectional configuration principle schematic of facing of the present invention.
Embodiment:
Also be described further by reference to the accompanying drawings below by embodiment.
Embodiment:
the agent structure of the present embodiment comprises valve shaft 1, front nut 2, nut shim 3, pressing plate pad 4, pressing plate 5, upper short tube 6, front leading truck 7, stiff case 8, pressurising blanket of nitrogen 9, nitrogen charging device 10, nylon reinforcing rubber layer 11, rear leading truck 12, lower short tube 13, valve compressing tablet 14, valve nut 15, Returnning spring 16, pressure-bearing spring 17, pressure-bearing compression spring 18, back nut 19, Returnning spring pad 20 and flexible valve 21, the valve shaft 1 of ganging up the formula structure gang up from top to bottom stiff case 8 and successively nesting type be shaped with front nut 2, nut shim 3, pressing plate pad 4, pressing plate 5, flexible valve 21, valve compressing tablet 14, valve nut 15, Returnning spring 16, Returnning spring pad 20, pressure-bearing spring 17, pressure-bearing compression spring 18 and back nut 19, the two side ends up and down of the stiff case 8 of spherical structure is shaped with respectively short tube 6, front leading truck 7 and rear leading truck 12, lower short tube 13, the protruding place of the side of stiff case 8 is shaped with nitrogen charging device 10, the inboard of stiff case 8 is shaped with pressurising blanket of nitrogen 9, and the inboard of pressurising blanket of nitrogen 9 is shaped with nylon reinforcing rubber layer 11, the inboard that is attached to nylon reinforcing rubber layer 11 is stretched at the avris place of flexible valve 21, stiff case 8 and nylon reinforcing rubber layer 11 are spherical, flexible valve 21 is bowl-shape, the curvature of flexible valve 21 is identical with nylon reinforcing rubber layer 11 curvature, stiff case 8 is made of pressurising blanket of nitrogen 9 and nylon reinforcing rubber layer 11, before the nylon reinforcing rubber layer 11 of spherical structure is fixed in, between the flange of rear leading truck 7 and 12 flange and stiff case 8, before, rear leading truck 7 and 12 is by upper, lower short tube and stiff case 8 are fixing, flexible valve 21 is fixed on valve shaft 1 by the valve compressing tablet 14 on pressing plate 5 and valve nut 15, valve shaft 1 is fixed in the middle of runner by front leading truck 7 and rear leading truck 12, the inwall of flexible valve 21 and stiff case 8 forms the flexible face sealing with curvature.
The present embodiment is installed and used in process, when the flowing medium forward flow, when valve shaft 1 forward moves, flexible valve 21 is subject to the pressure medium curvature and increases, flap is affixed to valve shaft, the runner flow section increases, when flowing medium during near reverse flow, valve shaft 1 reversing motion under the effect of Returnning spring 16, flexible valve 21 resiliences, the restriction medium passes through, and flexible valve 21 and nylon reinforcing rubber layer 11 seal the medium reverse flow, produce resiliently deformable under the effect of medium back flow inertia and backflow static pressure, pressurising blanket of nitrogen 9 forms buffering.
The present embodiment is when the medium forward flow, and when moving after valve shaft 1, flexible valve 21 is pressed close to valve shaft 1, and flow section is large, and the current loss is little, energy-conservation; Accidental shutdown or prominent the chance when having a power failure, flexible valve 21 automatically resets under the impetus of Returnning spring 16, the water hammer masterpiece is used for flexible valve 21 and nylon reinforcing rubber layer 11, occur to be delivered to pressurising blanket of nitrogen 9 after stress deformation, the initial stage water hammer is formed good damping and absorption, prevent that water hammer from occuring; In addition, owing to being that flexible structure consists of sealing pair, and be the face sealing from the sealing configuration, anti-silt impacts; Need not pilot line and diaphragm system from control mode again, Sediment Siltation without any impact, solves the technological gap that silt water is carried on multifunctional pump station valve, has good economic and social benefit after popularization.
Claims (2)
1. flexible sealed multifunctional pump station valve, comprise valve shaft, front nut, nut shim, the pressing plate pad, pressing plate, upper short tube, front leading truck, stiff case, the pressurising blanket of nitrogen, nitrogen charging device, the nylon reinforcing rubber layer, rear leading truck, lower short tube, the valve compressing tablet, the valve nut, Returnning spring, the pressure-bearing spring, the pressure-bearing compression spring, back nut, Returnning spring pad and flexible valve, the valve shaft that it is characterized in that ganging up the formula structure is ganged up stiff case from top to bottom and nestedly successively is shaped with front nut, nut shim, the pressing plate pad, pressing plate, flexible valve, the valve compressing tablet, the valve nut, Returnning spring, the Returnning spring pad, the pressure-bearing spring, pressure-bearing compression spring and back nut, the stiff case of spherical structure two side ends up and down is shaped with respectively short tube, front leading truck and rear leading truck, lower short tube, the protruding place of the side of stiff case is shaped with nitrogen charging device, the inboard of stiff case is shaped with the pressurising blanket of nitrogen, and the inboard of pressurising blanket of nitrogen is shaped with the nylon reinforcing rubber layer, the inboard that is attached to the nylon reinforcing rubber layer is stretched at the avris place of the flexible valve of bowl structure, stiff case and nylon reinforcing rubber layer are spherical structure, the curvature of flexible valve is identical with nylon reinforcing rubber layer curvature, the nylon reinforcing rubber layer of spherical structure is fixed between the flange of the flange of forward and backward leading truck and stiff case, forward and backward leading truck is fixed by upper and lower short tube and stiff case, flexible valve is fixed on valve shaft by the valve compressing tablet on pressing plate and valve nut, valve shaft is fixed in by front leading truck and rear leading truck in the middle of runner, and the inwall of flexible valve and stiff case forms the flexible face sealing with curvature.
2. flexible sealed multifunctional pump station valve according to claim 1, it is characterized in that when flowing medium when the valve shaft forward moved, flexible valve was subject to the pressure medium curvature and increases in the pumping plant valve during forward flow, flap is affixed to valve shaft, and the runner flow section increases; When the flowing medium reverse flow, the valve shaft reversing motion, the flexible valve resilience, the valve outer rim seals with the nylon reinforcing rubber layer formation face of same material, identical curvature, blocks pipeline, and the restriction liquid passes through; Flexible valve and nylon reinforcing rubber layer produce resiliently deformable under the effect of medium back flow inertia and backflow static pressure when sealing the medium reverse flow, form the first buffer function; The nylon reinforcing rubber layer is in the process of pressurized elongation, and the pressurising blanket of nitrogen of stiff case forms the second buffer function; The twice buffering prevents that water hammer from occuring; The flexible face sealing that flexible valve and nylon reinforcing rubber layer form is to the sediment environment favorable sealing property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110318734 CN102359625B (en) | 2011-10-19 | 2011-10-19 | Flexible sealed multifunctional pump station valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110318734 CN102359625B (en) | 2011-10-19 | 2011-10-19 | Flexible sealed multifunctional pump station valve |
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| Publication Number | Publication Date |
|---|---|
| CN102359625A CN102359625A (en) | 2012-02-22 |
| CN102359625B true CN102359625B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110318734 Active CN102359625B (en) | 2011-10-19 | 2011-10-19 | Flexible sealed multifunctional pump station valve |
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| CN (1) | CN102359625B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591522A (en) * | 2018-07-04 | 2018-09-28 | 德阳市迪信佳阀门制造有限公司 | Buffer valve structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848964A1 (en) * | 1996-12-17 | 1998-06-24 | Filtertek B.V. | Check valve especially for medical use |
| CN201462114U (en) * | 2009-07-10 | 2010-05-12 | 上海华通阀门有限公司 | Slow-closure axial-flow check valve |
| CN202266711U (en) * | 2011-10-19 | 2012-06-06 | 青岛禹人水设备新技术有限公司 | Flexible sealed multifunctional pump station valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0972442A (en) * | 1995-08-31 | 1997-03-18 | Nippo Valve:Kk | Unit type check valve capable of relieving charged pressure |
| US7331360B2 (en) * | 2005-01-28 | 2008-02-19 | Camis Jr Theodore Gerald | Check valve with low shut off sound |
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2011
- 2011-10-19 CN CN 201110318734 patent/CN102359625B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848964A1 (en) * | 1996-12-17 | 1998-06-24 | Filtertek B.V. | Check valve especially for medical use |
| CN201462114U (en) * | 2009-07-10 | 2010-05-12 | 上海华通阀门有限公司 | Slow-closure axial-flow check valve |
| CN202266711U (en) * | 2011-10-19 | 2012-06-06 | 青岛禹人水设备新技术有限公司 | Flexible sealed multifunctional pump station valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9－72442A 1997.03.18 |
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| CN102359625A (en) | 2012-02-22 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Jingdong Inventor after: Lu Zhili Inventor after: Jiang Mengbin Inventor after: Ding Lijie Inventor after: Zheng Zhihong Inventor after: Luo Zhiwang Inventor before: Shi Jingdong Inventor before: Lu Zhili Inventor before: Jiang Mengbin Inventor before: Ding Lijie Inventor before: Zheng Zhihong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHI JINGDONG LU ZHILI JIANG MENGBIN DING LIJIE ZHENG ZHIHONG TO: SHI JINGDONG LU ZHILI JIANG MENGBIN DING LIJIE ZHENG ZHIHONG LUO ZHIWANG |
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| C14 | Grant of patent or utility model | ||
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