CN205260331U - Large -traffic self -priming centrifugal pump is from inhaling systematic check valve - Google Patents
Large -traffic self -priming centrifugal pump is from inhaling systematic check valve Download PDFInfo
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- CN205260331U CN205260331U CN201520923045.6U CN201520923045U CN205260331U CN 205260331 U CN205260331 U CN 205260331U CN 201520923045 U CN201520923045 U CN 201520923045U CN 205260331 U CN205260331 U CN 205260331U
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Abstract
The utility model relates to a large -traffic self -priming centrifugal pump is from inhaling systematic check valve, including the suction casing, install the clack box on the suction casing, the clack box with be equipped with the disk seat between the suction casing, be equipped with the through -hole on the disk seat, the through -hole will the clack box with the suction casing intercommunication, the check valve is installed in the through -hole, the check valve with the through -hole sliding pair is connected, install nozzle intake pipe and jet nozzle on the clack box. The utility model has the advantages of simple structure, the action is reliable, and sealing performance is good, easily casting, assembly easy maintenance, it is with low costs etc..
Description
Technical field
The utility model relates to a kind of non-return valve of novel mass flow self-priming centrifugal pump self-suction system.
Background technology
By big-flow self-priming centrifugal pump unit has been carried out to market survey widely, sum up the problem that current big-flow self-priming centrifugal pump unit exists: 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 meet the demand in 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, taking the self-priming centrifugal pump of producing internal-mixing and exterior mixing structure as main, lacks innovation, can not solve big-flow self-priming centrifugal pump self-priming performance.
For this reason, the applicant proposes a kind of non-return valve for novel mass flow self-priming centrifugal pump self-suction system, and this non-return valve, for self-priming system, makes the type pump not need additional servicing unit, completely and pump one running body, whole system is all driven by a diesel engine, and its feature is: simple in structure, and reliable in action, good seal performance, be easy to casting, assemble easy to maintenancely, cost is low etc.
Utility model content
The purpose of this utility model is to provide a kind of non-return valve for big-flow self-priming centrifugal pump self-suction system, this non-return valve is for self-suction system, make self priming pump not need additional servicing unit, complete and pump one running body, whole system is all driven by a diesel engine.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of non-return valve of big-flow self-priming centrifugal pump self-suction system, comprise suction casing, on described suction casing, clack box is installed, between described clack box and described suction casing, be provided with valve seat, described valve seat is provided with through hole, and described through hole is communicated with described clack box with described suction casing; Check-valves is arranged in described through hole, and described check-valves is connected with described through hole sliding pair; Nozzle air inlet pipe and jet nozzle are installed on described clack box.
In such scheme, the surrounding that is positioned at described through hole on described valve seat is provided with valve seat cambered surface, described check-valves is four paws bowl formula check-valves, and one end that described four paws bowl formula check-valves 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 check-valves 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 check-valves 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 check-valves in through hole is highly the 7%-14% of four paws bowl formula check-valves height overall.
In such scheme, the central shaft conllinear of described nozzle air inlet pipe and described jet nozzle.
In such scheme, be also provided with filter screen on suction casing, described filter screen is positioned at described check-valves below.
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, height 19mm, and its material is copper.
In such scheme, described suction casing, the material of described clack box is HT200.
The beneficial effects of the utility model: (1) non-return valve of the present utility model, for self-suction system, makes self priming pump not need additional servicing unit, complete and pump one running body, (2) simple in structure, reliable in action, good seal performance, be easy to casting, assemble easy to maintenancely, cost is low etc.
Brief description of the drawings
Fig. 1 is non-return valve structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
As shown in Figure 1, a kind of non-return valve of big-flow self-priming centrifugal pump self-suction system, comprises suction casing 1, on described suction casing 1, clack box 4 is installed, between described clack box 4 and described suction casing 1, be provided with valve seat 3, described valve seat 3 is provided with through hole, and described through hole is communicated with described clack box 4 with described suction casing 1; Check-valves 5 is arranged in described through hole, and described check-valves 5 is connected with described through hole sliding pair; Nozzle air inlet pipe 7 and jet nozzle 6 are installed on described clack box 4. The surrounding that is positioned at described through hole on described valve seat 3 is provided with valve seat cambered surface 3-1, described check-valves 5 is four paws bowl formula check-valves, one end that described four paws bowl formula check-valves 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 check-valves 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 check-valves is 40mm, described spacer block 5-2 is equally distributed four identical rubber spacer blocks, the slip of described four paws bowl formula check-valves in through hole is highly the 7%-14% of four paws bowl formula check-valves height overall, so more can ensure that the operating efficiency of non-return valve reaches best. Preferably, the central shaft conllinear of described nozzle air inlet pipe 7 and described jet nozzle 6, to make the gas of nozzle air inlet pipe 7 directly from jet nozzle 6 ejections, better at the interior formation low-pressure area of clack box 4. Preferably, be also provided with filter screen 2 on suction casing 1, described filter screen 2 is positioned at described check-valves 5 belows, 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 operation principle of non-return valve of the present utility model is: before pump is started working, in suction casing 1, be full of air, four paws bowl formula check-valves 5 is air up and down, be atmospheric pressure, due to self gravitation effect, four paws bowl formula check-valves 5 is embedded in valve seat 3, and four paws bowl formula check-valves 5 is in sealing state, and whole non-return valve is closed, in the time that pump brings into operation, because clack box 4 right-hand members are equipped with jet nozzle 6, novel jet flow nozzle logical 6 is connected with air compressor press by nozzle air inlet pipe 7, the compressed air that air compressor produces enters the rear generation jet of jet nozzle 6, making nozzle entrainment mouthful 8 place's pressure sharply reduces, four paws bowl formula check-valves 5 upper spaces produce negative pressure gradually, and bottom is atmospheric pressure, due to differential pressure action, in the time that pressure reduction pressure is greater than four paws bowl formula check-valves 5 self gravitation, four paws bowl formula check-valves 5 is upwards backed down, in suction casing 1, air is drawn in clack box 4 and by jet nozzle and discharges, pump intracavity gas is constantly entrainmented enters jet nozzle, and together discharged by the gas discharge outlet of nozzle with compressed air. because four paws bowl formula check-valves 5 lower ends are uniformly distributed four identical rubber spacer blocks, four paws bowl formula check-valves 5 can not siphoned away in the lump. when pump intracavity gas is from suction casing 1 is discharged completely, liquid medium is full of suction casing 1, in suction casing 1, no longer include air, inside will produce negative pressure, pressure is lower than clack box 4 internal pressures, due to differential pressure action, four paws bowl formula check-valves 5 is pressed downward down, four paws bowl formula check-valves 5 seals, non-return valve is closed, pump starts normal work, because suction casing in the course of work remains full of liquid condition always, it is negative pressure state, so four paws bowl formula check-valves 5 will seal always, non-return valve is always in closed condition, working media can not be inhaled in clack box 4 by four paws bowl formula check-valves 5, can not have influence on the normal work of pump.
Claims (10)
1. the non-return valve of a big-flow self-priming centrifugal pump self-suction system, it is characterized in that, comprise suction casing (1), clack box (4) is installed on described suction casing (1), between described clack box (4) and described suction casing (1), be provided with valve seat (3), described valve seat (3) is provided with through hole, and described through hole is communicated with described clack box (4) with described suction casing (1); Check-valves (5) is arranged in described through hole, and described check-valves (5) is connected with described through hole sliding pair; Nozzle air inlet pipe (7) and jet nozzle (6) are installed on described clack box (4).
2. the non-return 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 that is positioned at described through hole on described valve seat (3) is provided with valve seat cambered surface (3-1), described check-valves (5) is four paws bowl formula check-valves, one end that described four paws bowl formula check-valves 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 check-valves is positioned at suction casing (1) is provided with spacer block (5-2).
3. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 2, it is characterized in that, the diameter of the bowl formula cambered surface (5-1) of described four paws bowl formula check-valves is 40mm, and described spacer block (5-2) is equally distributed four identical rubber spacer blocks.
4. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 3, it is characterized in that, the slip of described four paws bowl formula check-valves in through hole is highly the 7%-14% of four paws bowl formula check-valves height overall.
5. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 1, it is characterized in that the central shaft conllinear of described nozzle air inlet pipe (7) and described jet nozzle (6).
6. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 1, it is characterized in that, be also provided with filter screen (2) on suction casing (1), described filter screen (2) is positioned at described check-valves (5) below.
7. the non-return 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. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 1, it is characterized in that, described valve seat (3) is bolted to connection with described clack box (4).
9. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 1, it is characterized in that, the internal diameter of described valve seat (3) is 16mm, height 19mm, and its material is copper.
10. according to the non-return valve of a kind of big-flow self-priming centrifugal pump self-suction system described in claims 1, it is characterized in that, described suction casing (1), the material of described clack box (5) is HT200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923045.6U CN205260331U (en) | 2015-11-19 | 2015-11-19 | Large -traffic self -priming centrifugal pump is from inhaling systematic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923045.6U CN205260331U (en) | 2015-11-19 | 2015-11-19 | Large -traffic self -priming centrifugal pump is from inhaling systematic check valve |
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| Publication Number | Publication Date |
|---|---|
| CN205260331U true CN205260331U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520923045.6U Expired - Fee Related CN205260331U (en) | 2015-11-19 | 2015-11-19 | Large -traffic self -priming centrifugal pump is from inhaling systematic check valve |
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| CN (1) | CN205260331U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298857A (en) * | 2015-11-19 | 2016-02-03 | 江苏大学 | Check valve of self-priming system of high-flow self-priming centrifugal pump |
| CN107605744A (en) * | 2017-10-27 | 2018-01-19 | 江苏大学 | A kind of self suction centrifugal pump system driven by air compressor machine |
-
2015
- 2015-11-19 CN CN201520923045.6U patent/CN205260331U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298857A (en) * | 2015-11-19 | 2016-02-03 | 江苏大学 | Check valve of self-priming system of high-flow self-priming centrifugal pump |
| CN105298857B (en) * | 2015-11-19 | 2017-12-05 | 江苏大学 | A kind of non-return valve of big-flow self-priming centrifugal pump self-suction system |
| CN107605744A (en) * | 2017-10-27 | 2018-01-19 | 江苏大学 | A kind of self suction centrifugal pump system driven by air compressor machine |
| CN107605744B (en) * | 2017-10-27 | 2019-02-05 | 江苏大学 | A kind of self suction centrifugal pump system driven by air compressor machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |