CN2348155Y - Self-priming device for water pump - Google Patents
Self-priming device for water pump Download PDFInfo
- Publication number
- CN2348155Y CN2348155Y CN 98242014 CN98242014U CN2348155Y CN 2348155 Y CN2348155 Y CN 2348155Y CN 98242014 CN98242014 CN 98242014 CN 98242014 U CN98242014 U CN 98242014U CN 2348155 Y CN2348155 Y CN 2348155Y
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- CN
- China
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- water
- bending tube
- water pump
- pump
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a self-sucking device for water pumps, which comprises a bending tube <5>, a vacuum break valve <7> and an air intake duct <6>. The utility model has two application types of a single suction horizontal type volute impeller pump and a horizontal type double suction centrifugal pump. The structure of holding water, breathing air and discharging the air is formed by making use of the rotary inspiration characteristic of a water pump impeller under an entire or semi-flooded state. Therefore, the problems of water filling and air discharge before starting a water pump are preferably solved. The utility model has the characteristics of safe and reliable work and energy saving and has the advantages of simple structure and convenient installation and operation. The utility model can be widely applied to various medium and small-sized horizontal type centrifugal pumps and volute type mixed flow pumps and can also be popularized in the occasions, such as the air storage of the large-scale centrifugal pumps and the tops of automatic aspiration siphon type water inlet (tube) channels, etc.
Description
The utility model belongs to pump station engineering and FLUID TRANSPORTATION technical field, particularly a kind of water pump self-suction device.
At present, for intake diameter at 300mm and following horizontal centrifugal pump or mixed flow pump, usually adopt the water-filling exhausting problem before the suction sleeve inlet is installed bottom valve solution starting of pump station, the major defect of this water-filling method is: (1) bottom valve is easily blocked or cuts out not driving fit and causes and leak by foreign material, water pump can't be started draw water; (2) pour water before the startup of unit and cause trouble, be unfavorable for realizing automation to management work; (3) if pumping line is not adorned check valve, when unexpected termination of pumping accident took place, bottom valve cut out suddenly producing very high water hammer pressure and impact force, causes bottom valve pipeline damage or pipe coupling to be leaked; (4) bottom valve is the maximum a kind of annex of power consumption in the water pump pipeline.
The purpose of this utility model is exactly a kind of safe and reliable energy-conservation water pump self-suction device of developing at above-mentioned situation.
The utility model mainly is made up of bending tube, vacuum breaker valve, sucking pipe.According to the difference of pump type, the utlity model has two kinds of basic combination forms.Accompanying drawing 1 and accompanying drawing 2 are respectively the structure principle chart of two kinds of basic combination forms, and the utility model is further introduced below in conjunction with accompanying drawing:
At the horizontal spiral case vane pump of single suction type, vacuum breaker valve 7 of the present utility model is installed on the top, upper end portion of bending tube 5, and communicates with bending tube, and the two ends of sucking pipe 6 are communicated with the upper end portion and the underpart of bending tube 5 respectively.When installing and using, the underpart of bending tube 5 is connected with water pump suction port 3, and the upper end portion of bending tube 5 then is connected with suction sleeve.
At horizontal double-suction centrifugal pump type, vacuum breaker valve 7 of the present utility model is installed on the top, upper end portion of bending tube 5, and communicates with bending tube 5, and an end of sucking pipe 6 is communicated with the upper end portion of bending tube 5.When installing and using, the upper end portion of bending tube 5 is connected with intake pipe, its underpart is connected with water pump suction port 3, and the other end of sucking pipe 6 is connected with water pump water inlet spiral case 10 tops, is communicated with steam outlet pipe 11 at water pump water outlet spiral case 1 and 8 of outlet pipes.In order to make gas be easy to separate, also can be communicated with aqueous vapor knockout drum 9 at the middle part and 8 of the outlet pipes of steam outlet pipe 11.
The utility model only needs before initial start-up, in pump, pour water and reach the pump heights of roofs, be full of the interior water of impeller 2 water outlet spiral cases 1 and bending tube behind the starting of pump station under action of centrifugal force, the part water body is forced into pumping line, the water yield of suction side reduces, surface in the top of suction eye, make the interior air of suction sleeve be entered the conduit of impeller, mix with the water in the rotary blade, and be thrown toward impeller outer edge, press to outlet pipe via water outlet spiral case 1, gas is overflowed along the outlet pipe rising in the water.Pattern shown in Figure 1; because suction eye and water pump suction port center are with high; air in the suction sleeve can enter impeller 2 by Pump Suction Nozzle 3 and mix discharge with water; the water of water inlet pool rises along suction sleeve; after surpassing the lower end of bending tube 5, promptly pour into to Pump Suction Nozzle 3; and be full of suction port 3 gradually; this moment, the air at bending tube 5 tops then directly entered impeller 2 by sucking pipe 6; water pump assembly enters normal operating condition after air is got rid of fully; automatically the vacuum breaker valve 7 of opening bending tube 5 tops during shutdown destroys suction sleeve top vacuum; make to keep enough waters in the pump case, in order to start the needs of bleeding next time.Pattern shown in Figure 2, because suction eye is higher than water pump suction port 3, impeller can only drain into the pump water outlet side with being higher than the above water body in suction eye center, so Pump Suction Nozzle 3 and bending tube 5 bottoms are full of water all the time, the water inlet pool water surface to the air of bending tube upper end portion can only enter suction eye by the sucking pipe 6 that is communicated with pump water inlet spiral case 10 tops, then by the rotation impeller with gas-vapor mix hydraulic pressure to exit of pump, the air of sneaking in the water is drained into outside the pump by the outlet pipe 11 that pumps water spiral case 1 top, and water pump assembly promptly reaches normal operating condition behind the experience certain hour.
In use water inlet and outlet smoothness, energy consumption are little in order to make the utility model, and the bending angle Selection of the bending tube in the utility model is good at 45 °.
The water pump self-suction device of making according to the utility model, effectively utilized the characteristic of impeller rotating air suction under whole or half floodage of water pump, not only solved the preceding water-filling exhausting problem of starting of pump station preferably, have work safety, reliable, energy-conservation characteristics, and it is simple in structure, easy to install.Not only can be widely used in various middle-size and small-size horizontal centrifugal pump and scroll casing type mixed flow pump, but also can be generalized to the gas of depositing at large centrifugal pump, auto-pumping hydrocone type feed water flow (pipe) top, road, and be used to handle the high point of suction rostrum gather qi together and cause pump capacity to reduce or move the problem that stops midway.
Accompanying drawing 1 is the horizontal spiral case vane pump of a utility model single suction self-priming apparatus schematic representation, and accompanying drawing 2 is the horizontal double-suction centrifugal pump self-priming apparatus of a utility model schematic representation.
Claims (4)
1. water pump self-suction device that includes bending tube, vacuum breaker valve and sucking pipe is characterized in that:
Described vacuum breaker valve
[7]Be installed in bending tube
[5]Upper end portion top on, and and bending tube
[5]Communicate; Described sucking pipe
[6]Two ends are communicated with bending tube respectively
[5]Upper end portion and underpart;
Described bending tube
[5]Underpart and water pump suction port
[2]Be connected, its upper end portion then is connected with suction sleeve.
2. water pump self-suction device according to claim 1 is characterized in that: described bending tube
[5]The bending angle be 45 °.
3. water pump self-suction device that includes bending tube, vacuum breaker valve and sucking pipe is characterized in that:
Described vacuum breaker valve
[7]Be installed in bending tube
[5]Position, upper end top go up and and bending tube
[5]Communicate;
Described sucking pipe
[5]An end be communicated with bending tube
[5]The upper end portion, the other end and water pump water inlet spiral case
[10]The top is connected, and at the water pump water outlet spiral case
[1]And outlet pipe
[8]Between be communicated with steam outlet pipe
[11]
Described bending tube
[5]The upper end portion be communicated with intake pipe, its underpart is communicated with water pump suction port;
4. water pump self-suction device according to claim 3 is characterized in that:
Described bending tube
[5]The bending angle be 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242014 CN2348155Y (en) | 1998-09-28 | 1998-09-28 | Self-priming device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242014 CN2348155Y (en) | 1998-09-28 | 1998-09-28 | Self-priming device for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2348155Y true CN2348155Y (en) | 1999-11-10 |
Family
ID=33988660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98242014 Expired - Fee Related CN2348155Y (en) | 1998-09-28 | 1998-09-28 | Self-priming device for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2348155Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828962A (en) * | 2011-06-14 | 2012-12-19 | 上海连成（集团）有限公司 | Novel strong self-absorption double-suction pump |
| CN103498800A (en) * | 2013-10-24 | 2014-01-08 | 武汉大学 | Movable type self-priming water pump device |
| CN103498799A (en) * | 2013-10-24 | 2014-01-08 | 武汉大学 | Water pump device with self-absorption function |
| CN112879354A (en) * | 2021-02-01 | 2021-06-01 | 冯海迪 | Reciprocating circulation centrifugal water pump |
-
1998
- 1998-09-28 CN CN 98242014 patent/CN2348155Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828962A (en) * | 2011-06-14 | 2012-12-19 | 上海连成（集团）有限公司 | Novel strong self-absorption double-suction pump |
| CN103498800A (en) * | 2013-10-24 | 2014-01-08 | 武汉大学 | Movable type self-priming water pump device |
| CN103498799A (en) * | 2013-10-24 | 2014-01-08 | 武汉大学 | Water pump device with self-absorption function |
| CN103498799B (en) * | 2013-10-24 | 2015-12-30 | 武汉大学 | A kind of pumping plant with self-absorption function |
| CN103498800B (en) * | 2013-10-24 | 2016-04-13 | 武汉大学 | A kind of portable self-priming water pump device |
| CN112879354A (en) * | 2021-02-01 | 2021-06-01 | 冯海迪 | Reciprocating circulation centrifugal water pump |
| CN112879354B (en) * | 2021-02-01 | 2022-07-26 | 宁波市杰得泳池科技有限公司 | Reciprocating circulation centrifugal water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |