CN105298857A - Check valve of self-priming system of high-flow self-priming centrifugal pump - Google Patents
Check valve of self-priming system of high-flow self-priming centrifugal pump Download PDFInfo
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- CN105298857A CN105298857A CN201510797975.6A CN201510797975A CN105298857A CN 105298857 A CN105298857 A CN 105298857A CN 201510797975 A CN201510797975 A CN 201510797975A CN 105298857 A CN105298857 A CN 105298857A
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Abstract
The invention relates to a check valve of a self-priming system of a high-flow self-priming centrifugal pump. The check valve comprises a suction segment. A valve box is arranged on the suction segment. A valve seat is arranged between the valve box and the suction segment and provided with a through hole, and the valve box and the suction segment are communicated through the through hole. A non-return valve is arranged in the through hole and connected with a sliding pair of the through hole. A nozzle air inlet pipe and a jet nozzle are arranged on the valve box. The check valve has the beneficial effects of being simple in structure, reliable in motion, good in sealing performance, easy to cast, convenient to assemble and maintain, low in cost and the like.
Description
Technical field
The present invention relates to a kind of check valve of novel mass flow self-priming centrifugal pump self-suction system.
Background technique
By having carried out market survey widely to big-flow self-priming centrifugal pump unit, sum up current big-flow self-priming centrifugal pump unit Problems existing: the self-priming theory and structure form of self-priming centrifugal pump is single, the research of self-priming structure and self-priming principle is not deep enough, and the self-priming performance of big-flow self-priming centrifugal pump is difficult to the demand meeting water and energy saving irrigation and market; Domestic big-flow self-priming centrifugal pump unit manufacturer is less, in self-priming centrifugal pump manufacturing enterprise at home, to produce the self-priming centrifugal pump of internal-mixing and external mixture type structure, lacks innovation, can not solve big-flow self-priming centrifugal pump self-priming performance.
For this reason, the applicant proposes a kind of for the check valve in novel mass flow self-priming centrifugal pump self-suction system, and this check valve is used for, in self-priming system, making the type pump not need additional auxiliary device, completely and pump one running body, whole system is all driven by a diesel engine, and its feature is: structure is simple, reliable in action, good seal performance, be easy to casting, assemble easy to maintenance, cost is low.
Summary of the invention
The object of the present invention is to provide a kind of for the check valve in big-flow self-priming centrifugal pump self-suction system, this check valve is used in self-suction system, make self-priming pump not need additional auxiliary device, complete and pump one running body, whole system is all driven by a diesel engine.
For achieving the above object, the technological scheme that the present invention takes is: a kind of check valve of big-flow self-priming centrifugal pump self-suction system, comprise suction casing, described suction casing is provided with clack box, valve seat is provided with between described clack box and described suction casing, described valve seat is provided with through hole, and described clack box is communicated with described suction casing by described through hole; Safety check is arranged in described through hole, and described safety check is connected with described through hole sliding pair; Described clack box is provided with nozzle suction tude and jet nozzle.
In such scheme, the surrounding described valve seat being positioned at described through hole is provided with valve seat cambered surface, described safety check is four paws bowl formula safety check, and one end that described four paws bowl formula safety check is positioned at clack box is provided with a bowl formula cambered surface, and described valve seat cambered surface and described bowl formula cambered surface can gluing, sealings; One end that described four paws bowl formula safety check is positioned at suction casing is provided with spacer block.
In such scheme, the diameter of the bowl formula cambered surface of described four paws bowl formula safety check is 40mm, and described spacer block is equally distributed four identical rubber spacer blocks.
In such scheme, the slip of described four paws bowl formula safety check in through hole is highly the 7%-14% of four paws bowl formula safety check height overall.
In such scheme, the central shaft conllinear of described nozzle suction tude and described jet nozzle.
In such scheme, suction casing is also provided with filter screen, described filter screen is positioned at below described safety check.
In such scheme, described filter screen is bent to the circular arc that central angle is 90 degree, and material is copper.
In such scheme, described valve seat and described clack box are bolted to connection.
In such scheme, the internal diameter of described valve seat is 16mm, and height 19mm, its material is copper.
In such scheme, described suction casing, the material of described clack box is HT200.
Beneficial effect of the present invention: (1) check valve of the present invention is used for, in self-suction system, making self-priming pump not need additional auxiliary device, complete and pump one running body, (2) structure is simple, reliable in action, good seal performance, be easy to casting, assemble easy to maintenance, cost is low.
Accompanying drawing explanation
Fig. 1 is check valve structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is described in detail.
As shown in Figure 1, a kind of check valve of big-flow self-priming centrifugal pump self-suction system, comprises suction casing 1, described suction casing 1 is provided with clack box 4, be provided with valve seat 3 between described clack box 4 and described suction casing 1, described valve seat 3 is provided with through hole, and described clack box 4 is communicated with described suction casing 1 by described through hole; Safety check 5 is arranged in described through hole, and described safety check 5 is connected with described through hole sliding pair; Described clack box 4 is provided with nozzle suction tude 7 and jet nozzle 6.The surrounding described valve seat 3 being positioned at described through hole is provided with valve seat cambered surface 3-1, described safety check 5 is four paws bowl formula safety check, one end that described four paws bowl formula safety check is positioned at clack box 4 is provided with a bowl formula cambered surface 5-1, and described valve seat cambered surface 3-1 and described bowl formula cambered surface 5-1 can gluing, sealing; One end that described four paws bowl formula safety check is positioned at suction casing 1 is provided with spacer block 5-2.Preferably, the internal diameter of described valve seat 3 is 16mm, height 19mm, the diameter of the bowl formula cambered surface 5-1 of described four paws bowl formula safety check is 40mm, described spacer block 5-2 is equally distributed four identical rubber spacer blocks, the slip of described four paws bowl formula safety check in through hole is highly the 7%-14% of four paws bowl formula safety check height overall, so more can ensure that the working efficiency of check valve reaches best.Preferably, the central shaft conllinear of described nozzle suction tude 7 and described jet nozzle 6, to make the gas of nozzle suction tude 7 directly spray from jet nozzle 6, better forms low pressure area in clack box 4.Preferably, suction casing 1 is also provided with filter screen 2, described filter screen 2 is positioned at below described safety check 5, and described filter screen 2 is bent to the circular arc that central angle is 90 degree, and material is copper.
Preferably, described valve seat 3 is bolted to connection with described clack box 4, and its material is copper.Described suction casing 1, the material of described clack box 5 is HT200.
The working principle of check valve of the present invention is: before pump is started working, air is full of in suction casing 1, four paws bowl formula safety check about 5 is air, be barometric pressure, due to self gravitation effect, four paws bowl formula safety check 5 is embedded in valve seat 3, and four paws bowl formula safety check 5 is in sealing state, and whole check valve is closed, when pump brings into operation, because clack box 4 right-hand member is equipped with jet nozzle 6, novel jet flow nozzle logical 6 is connected with air compressor press by nozzle suction tude 7, jet is produced after the pressurized air that air compressor produces enters jet nozzle 6, make nozzle entrainment mouth 8 place pressure sharply to reduce, four paws bowl formula safety check 5 upper space produces negative pressure gradually, and bottom is barometric pressure, due to differential pressure action, when pressure reduction pressure is greater than four paws bowl formula safety check 5 self gravitation, four paws bowl formula safety check 5 is upwards backed down, in suction casing 1, air to be drawn in clack box 4 and to be discharged by jet nozzle, pump intracavity gas is constantly entrainmented enters jet nozzle, and together discharged by the gas discharge outlet of nozzle with pressurized air.Because four paws bowl formula safety check 5 lower end is uniformly distributed four identical rubber spacer blocks, four paws bowl formula safety check 5 can not be siphoned away in the lump.After pump intracavity gas is fully drained from suction casing 1, liquid medium is full of suction casing 1, air is no longer included in suction casing 1, inside will produce negative pressure, pressure is lower than clack box 4 internal pressure, due to differential pressure action, four paws bowl formula safety check 5 is pressed downward down, four paws bowl formula safety check 5 seals, check valve is closed, pump starts normal work, because in working procedure, suction casing remains full of liquid condition always, i.e. negative pressure state, so four paws bowl formula safety check 5 will seal always, check valve is in closed condition always, working medium can not be inhaled in clack box 4 by four paws bowl formula safety check 5, the normal work of pump can not be had influence on.
Claims (10)
1. the check valve of a big-flow self-priming centrifugal pump self-suction system, it is characterized in that, comprise suction casing (1), described suction casing (1) is provided with clack box (4), valve seat (3) is provided with between described clack box (4) and described suction casing (1), described valve seat (3) is provided with through hole, and described clack box (4) is communicated with described suction casing (1) by described through hole; Safety check (5) is arranged in described through hole, and described safety check (5) is connected with described through hole sliding pair; Described clack box (4) is provided with nozzle suction tude (7) and jet nozzle (6).
2. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claim 1, it is characterized in that, the surrounding described valve seat (3) being positioned at described through hole is provided with valve seat cambered surface (3-1), described safety check (5) is four paws bowl formula safety check, one end that described four paws bowl formula safety check is positioned at clack box (4) is provided with a bowl formula cambered surface (5-1), and described valve seat cambered surface (3-1) and described bowl formula cambered surface (5-1) can gluing, sealings; One end that described four paws bowl formula safety check is positioned at suction casing (1) is provided with spacer block (5-2).
3. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 2, it is characterized in that, the diameter of the bowl formula cambered surface (5-1) of described four paws bowl formula safety check is 40mm, and described spacer block (5-2) is equally distributed four identical rubber spacer blocks.
4. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 3, is characterized in that, the slip of described four paws bowl formula safety check in through hole is highly the 7%-14% of four paws bowl formula safety check height overall.
5. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 1, is characterized in that, the central shaft conllinear of described nozzle suction tude (7) and described jet nozzle (6).
6. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 1, is characterized in that, suction casing (1) is also provided with filter screen (2), and described filter screen (2) is positioned at described safety check (5) below.
7. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claim 6, is characterized in that, described filter screen (2) is bent to the circular arc that central angle is 90 degree, and material is copper.
8. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 1, is characterized in that, described valve seat (3) and described clack box (4) are bolted to connection.
9. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 1, is characterized in that, the internal diameter of described valve seat (3) is 16mm, and height 19mm, its material is copper.
10. the check valve of a kind of big-flow self-priming centrifugal pump self-suction system according to claims 1, is characterized in that, described suction casing (1), and the material of described clack box (5) is HT200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797975.6A CN105298857B (en) | 2015-11-19 | 2015-11-19 | A kind of non-return valve of big-flow self-priming centrifugal pump self-suction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797975.6A CN105298857B (en) | 2015-11-19 | 2015-11-19 | A kind of non-return valve of big-flow self-priming centrifugal pump self-suction system |
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| CN105298857A true CN105298857A (en) | 2016-02-03 |
| CN105298857B CN105298857B (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510797975.6A Active CN105298857B (en) | 2015-11-19 | 2015-11-19 | A kind of non-return valve of big-flow self-priming centrifugal pump self-suction system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762686A (en) * | 2016-12-14 | 2017-05-31 | 江苏大学 | A kind of automatic clutch device for being applied to self-priming sprinkling irrigation pump assembly |
| CN107061301A (en) * | 2017-05-22 | 2017-08-18 | 福建省农业机械化研究所(福建省机械科学研究院） | A kind of big-flow self-priming sprinkling irrigation pump of external fluidic device |
| CN108518345A (en) * | 2018-06-08 | 2018-09-11 | 安徽阿莫斯泵业有限公司 | A kind of jet stream vacuumizes Quick water-inducing device |
| CN112703320A (en) * | 2018-09-12 | 2021-04-23 | 倍得龙有限公司 | Self-priming centrifugal pump |
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| JP2000274389A (en) * | 1999-03-24 | 2000-10-03 | Matsushita Electric Ind Co Ltd | Self-priming pump |
| WO2008023515A1 (en) * | 2006-08-23 | 2008-02-28 | Iwaki Co., Ltd. | Self-suction pump |
| CN101644272A (en) * | 2009-07-20 | 2010-02-10 | 江苏大学 | Fast self-priming jet-type centrifugal pump |
| CN201739209U (en) * | 2010-01-05 | 2011-02-09 | 王小雨 | Submersible pump energy saving and protection and pump pipe protection device |
| CN103883766A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Check valve for self-priming system |
| CN104819157A (en) * | 2015-04-21 | 2015-08-05 | 江苏大学 | Self-suction centrifugal pump |
| CN205260331U (en) * | 2015-11-19 | 2016-05-25 | 江苏大学 | Large -traffic self -priming centrifugal pump is from inhaling systematic check valve |
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2015
- 2015-11-19 CN CN201510797975.6A patent/CN105298857B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274389A (en) * | 1999-03-24 | 2000-10-03 | Matsushita Electric Ind Co Ltd | Self-priming pump |
| WO2008023515A1 (en) * | 2006-08-23 | 2008-02-28 | Iwaki Co., Ltd. | Self-suction pump |
| CN101644272A (en) * | 2009-07-20 | 2010-02-10 | 江苏大学 | Fast self-priming jet-type centrifugal pump |
| CN201739209U (en) * | 2010-01-05 | 2011-02-09 | 王小雨 | Submersible pump energy saving and protection and pump pipe protection device |
| CN103883766A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Check valve for self-priming system |
| CN104819157A (en) * | 2015-04-21 | 2015-08-05 | 江苏大学 | Self-suction centrifugal pump |
| CN205260331U (en) * | 2015-11-19 | 2016-05-25 | 江苏大学 | Large -traffic self -priming centrifugal pump is from inhaling systematic check valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762686A (en) * | 2016-12-14 | 2017-05-31 | 江苏大学 | A kind of automatic clutch device for being applied to self-priming sprinkling irrigation pump assembly |
| CN107061301A (en) * | 2017-05-22 | 2017-08-18 | 福建省农业机械化研究所(福建省机械科学研究院） | A kind of big-flow self-priming sprinkling irrigation pump of external fluidic device |
| CN108518345A (en) * | 2018-06-08 | 2018-09-11 | 安徽阿莫斯泵业有限公司 | A kind of jet stream vacuumizes Quick water-inducing device |
| CN112703320A (en) * | 2018-09-12 | 2021-04-23 | 倍得龙有限公司 | Self-priming centrifugal pump |
| CN112703320B (en) * | 2018-09-12 | 2023-02-28 | 倍得龙有限公司 | Self-priming centrifugal pump |
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| CN105298857B (en) | 2017-12-05 |
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Inventor after: Chang Hao Inventor after: Shi Weidong Inventor after: Liu Jianrui Inventor after: Liu Bowen Inventor after: Gao Zhenjun Inventor after: Wu Yongsheng Inventor after: Li Xiaowei Inventor before: Chang Hao Inventor before: Liu Jianrui Inventor before: Liu Bowen Inventor before: Gao Zhenjun Inventor before: Wu Yongsheng Inventor before: Li Xiaowei |
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