CN2360641Y - Self-sucking multipurpose centrifugal pump - Google Patents
Self-sucking multipurpose centrifugal pump Download PDFInfo
- Publication number
- CN2360641Y CN2360641Y CN 99225648 CN99225648U CN2360641Y CN 2360641 Y CN2360641 Y CN 2360641Y CN 99225648 CN99225648 CN 99225648 CN 99225648 U CN99225648 U CN 99225648U CN 2360641 Y CN2360641 Y CN 2360641Y
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- pump
- centrifugal pump
- control switch
- centrifugal
- vacuum
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- Sewage (AREA)
Abstract
The utility model relates to a self suction multipurpose centrifugal pump, which is composed of a vacuum pump, a centrifugal pump, and a control switch. The utility model is characterized in that a drain outlet is arranged on the vacuum pump; the drain outlet is communicated with an inlet of the centrifugal pump through the control switch. Leading water in the vacuum pump can be sucked to form true vacuum when the utility model works. Simultaneously, the vacuum pump and the centrifugal pump are connected by a same shaft. The utility model adopts a structure that an impeller of the centrifugal pump is arranged on the shaft end of a pump shaft, and thus, the utility model has the functions of high self suction height, short self suction time, no artificial water filling need, and high effective rate. Besides, the utility model can be suitable for pumping and conveying sewage media.
Description
The utility model relates to the pump of pumping liquid medium in a kind of pipeline, specifically about a kind of self-priming centrifugal pump.
At present the self-priming centrifugal pump of producing belongs to two kinds of internal-mixing and external mixture types mostly, and its structure comprises the pump housing, blade and the pump shaft that links to each other with motor shaft, and intake pipe and outlet pipe are arranged on the pump housing, at its top water injecting pipe is housed.Its shortcoming is: need before the start artificially to the pump chamber water filling; The high end of self-priming, is low, the time is long; Return port in the pump chamber makes its working efficiency lower more than 10% than Ordinary Centrifugal Pumps.
In order to overcome the above problems Chinese patent: the vacuum water diversion self-priming centrifugal pump, adopt vacuum water diversion level and centrifugal level two-layer configuration, the suction port of diversion level is connected by the suction chamber of pipeline with centrifugal level, and the break-make of pipeline is by electromagnetic valve.When pump is started working, at first take air in the centrifugal pump away by the diversion level, make the centrifugal pump cavity produce vacuum, water is in the barometric pressure effect presses down the centrifugal pump chamber of people, centrifugal pump is devoted oneself to work, the self-priming process is finished in the idle running of diversion level, and having solved needs the people to be water filling and the long problem of self-priming time before the start.But during the idle running of diversion level, the water in its pump chamber is never discharged, and impeller operation is increased resistance, makes motor produce additional power consumption, reduces the working efficiency of pump.And, the diversion level is connected with centrifugal level and adopts the diversion level to place the suspended wall structure of centrifugal level spindle nose, be that pump shaft passes the centrifugal pump suction chamber and leads to diversion level blade wheel chamber and be connected with its impeller, so the impurity in the medium is easy to be entangled on the pump shaft, increase the resistance of pump, even stall, this structure is not suitable for pumps the sewage medium.
The purpose of this utility model is in order to solve the problem that existing product exists, design a kind of artificial recharge that neither needs, and self-priming height height, self-priming time are lacked, and have high working efficiency again, can be applicable to that the self-priming of pumping the sewage medium uses centrifugal pump more.
The technical solution of the utility model comprises with the water circulating type vacuum pump of pump shaft and centrifugal pump and control switch, is shaped on intakeport and relief opening on the pump housing of vacuum pump, and intakeport is by the normal open walk of control switch and the pump chamber UNICOM of centrifugal pump.Also have a drain opening on the vacuum pump, this drain opening is by the normally closed passage and the centrifugal pump inlet UNICOM of control switch.In the outlet passage of centrifugal pump one-way valve is housed, relief opening is by the outlet side UNICOM of the normal open walk and the one-way valve of control switch.Vacuum pump is connected with centrifugal pump and adopts centrifugal pump impeller to be loaded on the pump shaft end, and vacuum pump impeller is loaded on the structure in the middle of the pump shaft.
One of the utility model advantage compared with prior art is to be provided with drain opening on vacuum pump, when centrifugal pump is devoted oneself to work, bleeds off the circulating water in the vacuum pump, reduces the idle resistance of vacuum pump impeller, alleviates motor load, improves the efficient of pump; Two of its advantage is that centrifugal pump impeller places the pump shaft end, makes it can be suitable for pumping sewage.
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the structure sectional view of control switch among the utility model Fig. 1.
Now describe the technical solution of the utility model in conjunction with the accompanying drawings and embodiments in detail.
Self-priming shown in Figure 1 is used centrifugal pump more, comprises one-level water circulating type vacuum pump and first-stage centrifugal pump and control switch 11.Vacuum pump and centrifugal pump have same pump shaft 2, and centrifugal pump impeller 6 places in the pump chamber of its pump housing 7, are fixed on the axle head away from the pump shaft 2 of motor side, and vacuum pump impeller 4 is fixedly mounted on pump shaft 2 middle parts.
Between the pump chamber of centrifugal pump and its outlet, an one-way valve 12 is housed.
Vacuum pump pump case 5 and centrifugal pump body 7 fixed seal connections, and motive sealing between the pump shaft 2.Pump case 5 downsides are shaped on a drain opening 10, and this drain opening 10 is connected a side of control switch 11 normally closed passages by pipeline, and the opposite side of control switch 11 normally closed passages is communicated with the centrifugal pump inlet by pipeline.
Vacuum pump is connected with the motor rotating mechanism by support 1.Be shaped on an intakeport 8 and a relief opening 9 on its pump housing 3, intakeport 8 is connected to an end of 11 1 normal open walks of control switch by pipeline, and the other end of this normal open walk is communicated with the centrifugal pump pump chamber by pipeline.Relief opening 9 is connected to a side of control switch 11 another normal open walks by pipeline, and the opposite side of this normal open walk is by the channel connection of 12 outlet sides of the one-way valve in pipeline and the centrifugal pump.
As shown in Figure 2, control switch 11 is the piston type integral switch, and an end of piston is equipped with return spring 14, and the other end is communicated with by the control mouth 13 of pipeline with centrifugal pump body 7 outlet ports.The piston type integral switch is shaped on two normal open walks and a normally closed passage, and the normal open walk of what is called is an opening state when control mouth 13 no pressure promptly, and so-called normally closed passage is a closed condition when control mouth 13 no pressure promptly.
Control switch 11 also can be the solenoid valve by pressure signal control.
Working principle of the present utility model is: when pump during in start-up phase, the centrifugal pump outlet side does not have pressure medium, the normally closed pathway closure of control switch, normal open walk is open-minded, at this moment, air in the centrifugal pump pump chamber is taken away by vacuum pump by the normal open walk of control switch, again outside another normal open walk excavationg pump of control switch.When being pumped to certain vacuum in the centrifugal pump chamber and spending, liquid is under the barometric pressure effect, be charged to pump chamber, centrifugal pump is started working, outlet side produces pressure, and the normal open walk of control switch is closed, and normally closed passage is open-minded, it is fixed that diversion in the vacuum pump is inhaled by centrifugal pump by the normally closed passage of control switch, makes the real vacuum of vacuum pump.
When pump was shut down, if closed check valve is tight, centrifugal pump dropped into the work of drawing water when then started shooting next time.As the closed check valve imprecision, then when hydraulic pressure dropped to a certain degree, control switch promptly resetted under the return spring effect, because the height difference of control switch two normal open walks.When top passage surfaced, water promptly injected in the vacuum pump from following passage, and diversion is provided when starting for next time.
Claims (3)
1. a self-priming is used centrifugal pump more, comprise water circulating type vacuum pump and centrifugal pump and the control switch installed with pump shaft, be shaped on intakeport and relief opening on the pump housing of vacuum pump, intakeport is by the normal open walk of control switch and the pump chamber UNICOM of centrifugal pump, it is characterized in that: also be shaped on a drain opening (10) on the vacuum pump, this drain opening (10) is by the normally closed passage and the centrifugal pump inlet UNICOM of control switch (11), one-way valve (12) is housed, the normal open walk of control switch (11) and the outlet side pipeline UNICOM of one-way valve (12) in the outlet passage of centrifugal pump; Vacuum pump is connected with centrifugal pump, and employing centrifugal pump impeller (6) is loaded on pump shaft (2) end, vacuum pump impeller (4) is loaded on the structure in the middle of the pump shaft (2).
2, self-priming according to claim 1 is used centrifugal pump more, it is characterized in that described control switch (11) is the piston type integral switch, and an end of piston is equipped with return spring (14), and the other end is by connecting tube and centrifugal pump pump chamber outlet side UNICOM.
3, self-priming according to claim 1 is used centrifugal pump more, it is characterized in that described control switch (11) is a solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225648 CN2360641Y (en) | 1999-02-02 | 1999-02-02 | Self-sucking multipurpose centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225648 CN2360641Y (en) | 1999-02-02 | 1999-02-02 | Self-sucking multipurpose centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360641Y true CN2360641Y (en) | 2000-01-26 |
Family
ID=34015480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225648 Expired - Fee Related CN2360641Y (en) | 1999-02-02 | 1999-02-02 | Self-sucking multipurpose centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360641Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104350282A (en) * | 2012-04-11 | 2015-02-11 | 沃特劳斯公司 | Integrated reciprocating primer drive arrangement |
| CN105604957A (en) * | 2016-02-17 | 2016-05-25 | 广州奥姆特机电设备制造有限公司 | Automatic self-priming pressure pump |
-
1999
- 1999-02-02 CN CN 99225648 patent/CN2360641Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104350282A (en) * | 2012-04-11 | 2015-02-11 | 沃特劳斯公司 | Integrated reciprocating primer drive arrangement |
| US9587641B2 (en) | 2012-04-11 | 2017-03-07 | Waterous Company | Integrated reciprocating primer drive arrangement |
| CN105604957A (en) * | 2016-02-17 | 2016-05-25 | 广州奥姆特机电设备制造有限公司 | Automatic self-priming pressure 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 |