CN204553236U - Pumping selfsealings fluid self-priming pump - Google Patents
Pumping selfsealings fluid self-priming pump Download PDFInfo
- Publication number
- CN204553236U CN204553236U CN201520215854.1U CN201520215854U CN204553236U CN 204553236 U CN204553236 U CN 204553236U CN 201520215854 U CN201520215854 U CN 201520215854U CN 204553236 U CN204553236 U CN 204553236U
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- pump
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- chamber
- pumping
- priming
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Abstract
Pumping selfsealings fluid self-priming pump of the present utility model, pump shaft vertically extends, pump is probeed into dress in sealed case, pump chamber inner route clapboard is separated out along pump shaft the work pump chamber and pressure balance chamber that shaft clearance communicates, during pump is dynamic, the sub-propeller of pressure balance chamber produces the hydrodynamic pressure that and hydrodynamic pressure contrary with the impeller hydrodynamic pressure direction of the pump chamber that works is not less than impeller, and the sealed case fitting seat of pump and the connection bit of pump shaft arrange shaft seal, and pump shaft upper end is motor drive terminal.The technical program has self-priming reliable operation, lasting, stable, also have floor space little, without the need to the technological merit of fixing operation of laying foundation.
Description
Technical field
The utility model relates to self-priming centrifugal pump.
Background technique
Centrifugal pump application is very extensive, but most centrifugal pump lacks self-absorption function.Existing self-priming pump generally adopts jet nozzle or adopts vacuum pump, its complex structure, poor stability, and needs two motor operations.Fluid Sealing self-priming centrifugal pump disclosed in Chinese patent CN2013201657257, wherein in pump chamber, be coaxially separated out work pump chamber and pressure balance chamber by dividing plate, the main impeller hydrodynamic pressure that reverse hydrodynamic pressure is not less than work pump chamber is produced by the sub-propeller of pressure balance chamber, improve sealing in pump, between sub-propeller and pump shaft, be also provided with shaft seal simultaneously.Above-mentioned centrifugal pump level is installed and is arranged, and pumping hole is externally connected with and is highly not less than pump shaft horizontal vacuum self-priming chamber.Its structure improves sealing, adds self-absorption function, but also there is practical problem, as suction capacity owes desirable, wherein once there are wearing and tearing in shaft seal, and shaft sealing leakage can have a strong impact on self-absorption function power and the anti-cavitation ability of pump, is difficult to be applicable to the conveying containing media such as crystalline solid or other particles, functional reliability is influenced, also have overall floor space large, basic fixation means is complicated, and the application for the actual environment that can not do ground base then the technical program is then very limited.
Summary of the invention
It is high and take up an area little, ground and be fixedly installed easy, stable pumping selfsealings fluid self-priming pump that goal of the invention of the present utility model is to improve further self-priming performance, functional reliability and stability.The pumping selfsealings fluid self-priming pump technological scheme that the utility model provides, its main technical content is: a kind of pumping selfsealings fluid self-priming pump, the pump chamber inner route clapboard of this pump is separated out along pump shaft the work pump chamber and pressure balance chamber that shaft clearance communicates, during pump is dynamic, the sub-propeller of pressure balance chamber produces the hydrodynamic pressure that and hydrodynamic pressure contrary with the impeller hydrodynamic pressure direction of the pump chamber that works is not less than impeller, pump shaft vertically extends, pump is probeed into dress in sealed case, the sealed case fitting seat of pump and the connection bit of pump shaft arrange shaft seal, pump shaft upper end is motor drive terminal, medium intake pipeline is connected with sealed case top pump intake, pumping outlet is connected with export pipeline.
The pumping selfsealings fluid self-priming pump technological scheme that the utility model provides, pump probes into vertical pump shaft and fills in the sealed case of pumped medium, in pump work, sub-propeller forms good sealing relative to impeller to pumped medium, stops axle leakage effects, pump startup moment, pumping hole forms powerful and lasting vacuum self-priming active region, self-priming starts rapidly, is generally less than 10 seconds, and it inhales journey more than 6 meters, 8 meters can be reached, and again start work time sealed case in without the need to perfusion.The technical program self-priming reliable operation, lasting, stable, it also has, and floor space is little, without the need to the technological merit of fixing operation of laying foundation, its actual Applicable scope is wider; In addition, pump shaft shaft seal is positioned on sealed case medium liquid level all the time, and when pump is opened and stops, shaft seal not easily transported medium not easily corrodes, and its seal action can keep self-priming effect more lasting.The technical program is more suitable for as containing crystalline solid or other particle and the conveying being easily evacuated medium, can as the substitute products of current self-priming pump, Under Water Pumps, submersible pump.
Accompanying drawing explanation
Accompanying drawing is composition tectonic maps of the present utility model.
Embodiment
What accompanying drawing was shown is that one of the utility model pumping selfsealings fluid self-priming pump specifically constructs, and pump shaft 6 vertically extends, and makes pump probe into sealed case 7 space, assembles with sealed case 7 is fixing.Pump shaft 6 upper end is connected with drive motor 13 output shaft axle, pump shaft lower end penetrates in the pump chamber that the pump housing 1 and pump cover 5 form, which is provided with impeller 2, dividing plate 3 and sub-propeller 4, pump chamber to be separated out along pump shaft 6 the work pump chamber and pressure balance chamber that shaft clearance communicates by dividing plate 3, during pump is dynamic, the sub-propeller 4 of pressure balance chamber produces contrary with impeller 2 hydrodynamic pressure direction, and hydrodynamic pressure is not less than the hydrodynamic pressure that main impeller 2 produces, and realizes the effective selfsealings in pumping.Pump shaft pillar 14 is fixedly assembled in pump cover 5 with on the seal case fitting seat 15 of pump, and shaft seal 8 is preferably disposed between fitting seat 15 and pump shaft 6.Electric machine support 10 lower end is fixed on fitting seat 15, and motor 13 flange is fixed on electric machine support 10.
Medium intake pipeline is connected with the pump intake 11 at sealed case 7 top, pumping outlet connects export pipeline and draws sealed case 7, export pipeline is provided with one-way valve, reflux pipeline is a little positioned at above one-way valve with communicating of export pipeline, reflux pipeline passes into sealed case 7, and reflux pipeline is provided with solenoid valve 12.Liquid level control switch 9 is provided with in sealed case 7.Especially people is after pump repeatedly start-stop operation, cause sealed case 7 medium liquid level lower than minimum spacing time, liquid level control switch 9 closes, start solenoid valve 12 performance loop, medium flows into sealed case 7 by reflux pipeline, until when recovering normal self-priming liquid level, liquid level control switch 9 dialysis, solenoid valve 12 closing volume pipeline.
Claims (3)
1. a pumping selfsealings fluid self-priming pump, the pump chamber inner route clapboard (3) of this pump is separated out along pump shaft the work pump chamber and pressure balance chamber that shaft clearance communicates, during pump is dynamic, the sub-propeller (4) of pressure balance chamber produces the hydrodynamic pressure that and hydrodynamic pressure contrary with impeller (2) the hydrodynamic pressure direction of the pump chamber that works is not less than impeller, it is characterized in that pump shaft (6) vertically extends, pump is probeed into dress in sealed case (7), the sealed case fitting seat of pump and the connection bit of pump shaft arrange shaft seal (8), pump shaft upper end is motor drive terminal, medium intake pipeline is connected with sealed case top pump intake (11), pumping outlet is connected with export pipeline.
2. pumping selfsealings fluid self-priming pump according to claim 1, it is characterized in that export pipeline is provided with one-way valve, be positioned at above one-way valve, a reflux pipeline communicates with export pipeline, and pass into sealed case (7), reflux pipeline is provided with solenoid valve (12).
3. pumping selfsealings fluid self-priming pump according to claim 1 and 2, it is characterized in that pump chamber is made up of the pump housing (1) and pump cover (5), pump shaft pillar (10) is fixedly assembled in pump cover (5) with on the seal case fitting seat (15) of pump, electric machine support (10) lower end is fixed on fitting seat (15), and motor (13) flange is fixed on electric machine support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215854.1U CN204553236U (en) | 2015-04-10 | 2015-04-10 | Pumping selfsealings fluid self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215854.1U CN204553236U (en) | 2015-04-10 | 2015-04-10 | Pumping selfsealings fluid self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553236U true CN204553236U (en) | 2015-08-12 |
Family
ID=53828357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215854.1U Expired - Fee Related CN204553236U (en) | 2015-04-10 | 2015-04-10 | Pumping selfsealings fluid self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135496A (en) * | 2021-12-09 | 2022-03-04 | 天津长芦海晶集团有限公司 | Double-power sealed vertical salt pump |
-
2015
- 2015-04-10 CN CN201520215854.1U patent/CN204553236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135496A (en) * | 2021-12-09 | 2022-03-04 | 天津长芦海晶集团有限公司 | Double-power sealed vertical salt pump |
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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: 20150812 Termination date: 20160410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |