CN1776232A - Leakage-free centrifugar liquid pump with suction function - Google Patents
Leakage-free centrifugar liquid pump with suction function Download PDFInfo
- Publication number
- CN1776232A CN1776232A CN 200510101714 CN200510101714A CN1776232A CN 1776232 A CN1776232 A CN 1776232A CN 200510101714 CN200510101714 CN 200510101714 CN 200510101714 A CN200510101714 A CN 200510101714A CN 1776232 A CN1776232 A CN 1776232A
- Authority
- CN
- China
- Prior art keywords
- pump
- liquid
- impeller
- leakage
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
This invention discloses a self-suction leakage free centrifugal liquid pump, which contains pump cover with liquid suction mouth, pump unit having liquid outlet and inlet and pump base with hollow structure. The one end of pump cover and pump unit is jointed and forming pump cavity chamber communicated with liquid suction mouth, liquid outlet and inlet, a shaft through pump base into pump cavity chamber and connected with impeller, a check valve set in liquid outlet, axle seal structure set in joint of impeller and pump unit. Said invention has environment protection and energy saving etc advantages.
Description
Technical field
The present invention relates to a kind of centrifugar liquid pump, relate in particular to a kind of have self-absorption function and leak free centrifugar liquid pump.
Background technique
The centrifugar liquid pump of prior art comprises the pump housing, pump seat and pump cover.One end of its middle pump body is connected with pump cover and forms pump chambers, and pump chambers is connected with liquid sucting port, liquid outlet and main liquid mouth.The other end that don't body is connected with pump seat.One main shaft is through pump seat and hollow part that don't body, and an end of this main shaft is positioned at pump chambers, and impeller is installed, then external motor of the other end of main shaft or oil engine.When the rotation of motor or oil engine, drive the rotation of main axis rotation and then impeller, the impeller of rotation heart position therein forms negative pressuren zone, thus liquid from liquid sucting port suction pump chamber and from the liquid outlet drain.
The centrifugar liquid pump of prior art exists two problems: first leakage problem, because the defective tightness that is connected of the pump housing and pump seat, pump cover causes leak of liquid in running and stopping process; It two is self-priming problems, and the each startup of the centrifugar liquid pump of prior art all needs to inject liquid from spout in advance, comes the canned pump chamber with this liquid, thereby can be formed centrally negative pressuren zone in impeller when impeller rotates.Be that centrifugar liquid pump of the prior art can not realize that self-priming maybe can not keep self-absorption function.
Therefore, when the centrifugar liquid pump that uses prior art is handled famous and precious liquid, economic loss will be caused, and, when each the startup, the famous and precious liquid seal pump chambers thing of a waste especially need be injected owing to do not possess self-absorption function because of leakage.Certainly, also can cause poisonous and harmful liquid contamination environment because of leakage when handling poisonous and harmful liquid, therefore, the centrifugar liquid pump leakage and the self-priming problem that solve prior art are necessary in fact.
Summary of the invention
The object of the present invention is to provide a kind of no leakage liquid pump with self-absorption function, comprise pump cover with liquid sucting port, the pump housing and pump seat with liquid outlet and spout with hollow structure, described pump cover is connected with an end of the pump housing and forms pump chambers, this pump chambers and liquid sucting port, liquid outlet and spout communicate, the other end of the described pump housing is connected with pump seat, one main shaft stretches in the described pump chambers through the hollow part and an end of described pump seat, and connect an impeller at this end, liquid outlet place at the described pump housing is provided with an one-way valve, is provided with a sealing mechanism at described impeller and pump housing connecting part.
In the specific embodiment provided by the invention, described axle sealing mechanism comprises the seal ring A and the seal ring B that is assemblied on the pump housing on the impeller set that is assemblied in described impeller, and seal ring A becomes plane sealing with seal ring B.
In another specific embodiment provided by the invention, described axle sealing mechanism also comprises the rubber pad and the flexible rubber ring that is assemblied on the pump housing on the impeller set that is assemblied in described impeller, the side of described rubber pad and seal ring A is joined, the side of the opposite side of seal ring A and seal ring B is joined, and opposite side and the flexible rubber ring of seal ring B join.
In the specific embodiment provided by the invention, described seal ring A and seal ring B adopt the pottery or the alloy material of wear-resistant temperature-resistant to make.
In the specific embodiment provided by the invention, described impeller is the full-open type impeller.
In the specific embodiment provided by the invention, described impeller is fixed on the main shaft by the nut that is positioned at described front-end of spindle, is provided with O type sealing seal between described impeller and the nut, also is provided with O type sealing seal between the described pump cover and the pump housing.
In the specific embodiment provided by the invention, described pump chambers is central part bit wide, the narrow structure in peripheral position.
In the specific embodiment provided by the invention, the angle on described pump chamber locular wall limit is determined in proportion according to rotating speed, the liquid flow that supercharging is passed through through speedup of impeller.
In the specific embodiment provided by the invention, between the edge of described impeller and the pump chamber locular wall limit less clearance is set.
Because this no leakage liquid pump with self-absorption function provided by the invention is provided with one-way valve at liquid outlet, during the start liquid pump, need to inject liquid with the canned pump chamber for the first time from spout.When this pump work, liquid is pushed one-way valve open, discharges from liquid outlet; When this pump shuts down, closed check valve, the liquid in the pump chambers just is deposited in the pump chambers, just need not to inject liquid when restart next time, and promptly this liquid pump can be realized self-absorption function.When impeller rotates, because impeller and pump housing connecting part are positioned at negative pressuren zone, liquid can take place leak; And when the impeller stall, because this pump is provided with a sealing mechanism at impeller and pump housing connecting part, liquid can take place yet leak phenomenon.And, therefore also provide good assurance for the realization of self-absorption function because the good airproof performance of this sealing mechanism makes pump chambers keep good vacuum state.
Therefore, this no leakage liquid pump with self-absorption function provided by the invention has advantages such as energy-saving and environmental protection.Be suitable as poisonous and harmful, easily pollute and the liquid pump of famous and precious liquid.
Description of drawings
Fig. 1 is a kind of sectional drawing with no leakage liquid pump of self-absorption function provided by the invention;
Fig. 2 is the A part enlarged view among Fig. 1;
Fig. 3 a is the front elevation of the impeller 4 among Fig. 1;
Fig. 3 b is the side sectional view of the impeller 4 among Fig. 3 a.
Embodiment
Describe technological scheme of the present invention in detail below in conjunction with accompanying drawing, these accompanying drawings also are parts that realizes invention theory of the present invention.
With reference to figure 1, be a kind of sectional drawing provided by the invention with no leakage liquid pump of self-absorption function.As shown in the figure, this liquid pump comprises pump cover 6 with liquid sucting port 60, has the pump housing 2 of liquid outlet 21 and spout 22 and has the pump seat 1 of hollow structure.Described pump cover 6 is connected with the front end of the pump housing 2, and between has formed pump chambers 23.The rear end of the described pump housing 2 is connected with an end of pump seat 1, main shaft 3 runs through the hollow part of pump seat 1, its front end stretches in the pump chambers 23, and the nut 31 fixedly connected impellers 4 by being positioned at its top, the other end of this main shaft 3 is connected with external motor (figure does not show) by coupling 13 and flat key 14.Thus, when motor operation, will drive main shaft 3 and under the support of bearing 10, rotate, thereby drive the also rotation thereupon of impeller 4 that is positioned at main shaft 3 front ends.If in the pump chambers 23 is vacuum or full of liquid, then the place, center portion that is positioned at impeller 4 in pump chambers 23 forms negative pressuren zone owing to the rotation of impeller 4, and near liquid outlet 21, form the zone of high pressure, thus liquid is sucked from liquid sucting port 60, discharge from liquid outlet 21 through pump chambers 23.Thus, realize the function of pump liquid.
With reference to figure 1, be provided with an one-way valve 5 at liquid outlet 21.This one-way valve 5 comprises valve gap 50, valve rod 52 and spool 51.The outlet shape of the shape of valve gap 50 and liquid outlet 21 matches.The internal surface center of valve gap 50 is connecting valve rod 52, and valve rod 52 is a thin rod shape, and the position, intermediate portion is installed with spool 51.The outlet liquid sealing that joins with pump chambers 23 and liquid outlet 21 when spool 51 is static.When liquid pump turned round, one-way valve 5 was pushed in the effect that liquid is stressed open, discharged from liquid outlet 21.When liquid pump quit work, one-way valve had sealed pump chambers 23 with spool 51 under the effect of gravity, made pump chambers 23 form the sealing chamber of full of liquid, and promptly vacuum chamber has been created the ability of self-priming for start to turn round next time; Simultaneously, the sealing of one-way valve 5 when shutting down, the external pressure of liquid is separated by one-way valve 5 on the pipeline, the axle sealing mechanisms 9 in the pump housing 2 can be at stress-free state lower seal liquid, having solved the pump housing 2 does not have leakage in operation process, shut down the back leakage defect.
With reference to figure 1 and Fig. 2, be provided with a sealing mechanism 9 in the connecting part of the described impeller 4 and the pump housing 2.With reference to figure 2, be the enlarged view of Fig. 1 axis sealing mechanism 9 position A of living in.As shown in the figure, described axle sealing mechanism 9 is by the rubber pad 90, the seal ring A91 that are positioned on the impeller 4, and the seal ring B92, the flexible rubber ring 93 that are positioned on the pump housing 2 are connected to form successively.Wherein, seal ring A91 becomes plane sealing with seal ring B92.
With reference to figure 1 and Fig. 2, during installation, be positioned at the nut 31 locking impellers 4 on main shaft top, in the process of locking, can pass to the right,, the plane cooperation of seal ring A91 and seal ring B92 be cooperated for no gap through impeller set (figure does not show), rubber pad 90, seal ring A91, the seal ring B92 pressure elasticity cushion rubber 93 of impeller 4, guarantee the encapsulation of pump chambers 23 effectively, guarantee that the nothing of the pump housing 2 is leaked.
Seal ring A91 seal ring B92 adopts materials such as wear-resisting pottery, alloy to make, and guarantees the serviceability of two rings.Rubber pad 90 plays a part sealing and protection seal ring A91 is difficult for breaking.
With reference to figure 1 and Fig. 3 a, Fig. 3 b.Described impeller 4 is full-open type impellers, comprises wheel shaft 40 and blade 41.The wall of the both sides of the edge of impeller 4 and pump chambers 23 (figure does not show) is provided with less clearance.When impeller 4 high speed rotating, under action of centrifugal force, the central part of impeller 4 forms negative pressure.Because the effect of this negative pressure, subparticle can not occupied in two seal rings (seal ring A91 and seal ring B92) of phase mutual friction in the liquid.Other two seal rings are fully immersed in the liquid, and mutual fricative heat is absorbed by liquid in the running, discharges with the discharge of liquid, can not produce high temperature, have guaranteed the serviceability of axle sealing mechanism 9.
With reference to figure 1, described pump chambers 23 is central part bit wide, the narrow structure in peripheral position.The angle on described pump chamber locular wall limit is determined in proportion according to rotating speed, the liquid flow that supercharging is passed through through speedup of impeller.
With reference to figure 1, between impeller 4 and nut 31, be provided with O type sealing seal 8, be provided with O type sealing seal 7 in the joint of the pump cover 6 and the pump housing 2.The purpose of these seal rings all be for the sealability that makes pump chambers 23 better.
Metals such as this no leakage liquid pump with self-absorption function provided by the invention is optional cylinder iron, aluminum alloy, stainless steel and fluoroplastic, engineering plastics such as PP-R, multiple material such as PE, PVC-U.
Above disclosed is preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (10)
1. leakage-free centrifugar liquid pump with self-absorption function, comprise pump cover with liquid sucting port, the pump housing and pump seat with liquid outlet and spout with hollow structure, described pump cover is connected with an end of the pump housing and forms pump chambers, this pump chambers and liquid sucting port, liquid outlet and spout communicate, the other end of the described pump housing is connected with pump seat, one main shaft stretches in the described pump chambers through the hollow part and an end of described pump seat, and connect an impeller at this end, it is characterized in that: the liquid outlet place at the described pump housing is provided with an one-way valve, is provided with a sealing mechanism at described impeller and pump housing connecting part.
2. a kind of leakage-free centrifugar liquid pump as claimed in claim 1 with self-absorption function, it is characterized in that: described axle sealing mechanism comprises the seal ring A and the seal ring B that is assemblied on the pump housing on the impeller set that is assemblied in described impeller, and seal ring A becomes plane sealing with seal ring B.
3. a kind of leakage-free centrifugar liquid pump as claimed in claim 2 with self-absorption function, it is characterized in that: described axle sealing mechanism also comprises the rubber pad and the flexible rubber ring that is assemblied on the pump housing on the impeller set that is assemblied in described impeller, the side of described rubber pad and seal ring A is joined, the side of the opposite side of seal ring A and seal ring B is joined, and opposite side and the flexible rubber ring of seal ring B join.
4. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 2 is characterized in that: described seal ring A and seal ring B adopt the pottery or the alloy material of wear-resistant temperature-resistant to make.
5. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 1 is characterized in that: described impeller is the full-open type impeller.
6. a kind of leakage-free centrifugar liquid pump as claimed in claim 1 with self-absorption function, it is characterized in that: described impeller is fixed on the main shaft by the nut that is positioned at described front-end of spindle, be provided with O type sealing seal between described impeller and the nut, also be provided with O type sealing seal between the described pump cover and the pump housing.
7. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 1 is characterized in that: described pump chambers is central part bit wide, the narrow structure in peripheral position.
8. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 7 is characterized in that: the angle on described pump chamber locular wall limit is determined in proportion according to rotating speed, the liquid flow that supercharging is passed through through speedup of impeller.
9. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 1 is characterized in that: between the edge of described impeller and the pump chamber locular wall limit less clearance is set.
10. a kind of leakage-free centrifugar liquid pump with self-absorption function as claimed in claim 1 is characterized in that: described pump cover, the pump housing, pump seat, main shaft can be selected one or more material in metal or the plastics for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101714 CN1776232A (en) | 2005-11-25 | 2005-11-25 | Leakage-free centrifugar liquid pump with suction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101714 CN1776232A (en) | 2005-11-25 | 2005-11-25 | Leakage-free centrifugar liquid pump with suction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776232A true CN1776232A (en) | 2006-05-24 |
Family
ID=36765901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510101714 Pending CN1776232A (en) | 2005-11-25 | 2005-11-25 | Leakage-free centrifugar liquid pump with suction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1776232A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
| CN106939896A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of digital metering non-return centrifugal pump of high leakproofness |
| CN106949085A (en) * | 2017-05-04 | 2017-07-14 | 项光辉 | A kind of concentration automatic data collection non-return centrifugal pump of high leakproofness |
| CN109340125A (en) * | 2018-08-21 | 2019-02-15 | 上海瑞邦机械集团有限公司 | A kind of self priming pump of leakproof and Quick air-discharge |
-
2005
- 2005-11-25 CN CN 200510101714 patent/CN1776232A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
| CN106939896A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of digital metering non-return centrifugal pump of high leakproofness |
| CN106949085A (en) * | 2017-05-04 | 2017-07-14 | 项光辉 | A kind of concentration automatic data collection non-return centrifugal pump of high leakproofness |
| CN109340125A (en) * | 2018-08-21 | 2019-02-15 | 上海瑞邦机械集团有限公司 | A kind of self priming pump of leakproof and Quick air-discharge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8608465B2 (en) | Positive-displacement rotary pump having a positive-displacement auxiliary pumping system | |
| CN1776232A (en) | Leakage-free centrifugar liquid pump with suction function | |
| CN1844678A (en) | Single-stage horizontal automatic-balancing centrifugal seal pump device | |
| CN2811606Y (en) | Double-rotor vane pump | |
| CN201068864Y (en) | Linked centrifugal sealing self control self priming pump | |
| CN106762803A (en) | A kind of high-performance petrochemical industry centrifugal pump | |
| CN200949529Y (en) | Self priming pump | |
| CN108825506A (en) | It is not easy to be washed in the level of abrasion and opens horizontal double sucking pump | |
| CN108869306A (en) | Horizontal double sucking pump is opened in double containment level | |
| CN111520327A (en) | Reverse double-turbine high-pressure axial-flow pump | |
| JP2003056475A (en) | Roots water pump with shaft sealing part for leading in external air | |
| CN206917865U (en) | A kind of vertical no-sealed self-sucking pump | |
| CN201428617Y (en) | Highly-effective self priming pump | |
| CN2903483Y (en) | Gaseous, solid, liquid three phase delivering pump | |
| CN2198426Y (en) | Liquid closing water pump shaft seal device | |
| CN216618043U (en) | Vertical centrifugal pump convenient to wash | |
| CN200943598Y (en) | Submersible pump | |
| CN2250438Y (en) | Liquid medium full closed high vacuum degree vacuum pump | |
| CN215333581U (en) | Centrifugal pump with prevent stifled effect | |
| CN220227207U (en) | Energy-saving super-strong self-priming split pump | |
| CN108343614A (en) | A kind of efficient sealed methanol oil pump | |
| CN213540707U (en) | But impeller pump of automatically cleaning | |
| CN219827252U (en) | Multistage pump | |
| CN2592900Y (en) | Differential high-pressure rotor pump | |
| CN2635957Y (en) | Leakage free centrifugal type liquid pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |