CN105971890A - Self-suction centrifugal pump with double wing wheels - Google Patents
Self-suction centrifugal pump with double wing wheels Download PDFInfo
- Publication number
- CN105971890A CN105971890A CN201610290578.4A CN201610290578A CN105971890A CN 105971890 A CN105971890 A CN 105971890A CN 201610290578 A CN201610290578 A CN 201610290578A CN 105971890 A CN105971890 A CN 105971890A
- Authority
- CN
- China
- Prior art keywords
- pump
- wing wheel
- auxiliary
- work
- transmission shaft
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
Abstract
The invention provides a self-suction centrifugal pump with double wing wheels. The self-suction centrifugal pump comprises a working pump body, the working wing wheel and a transmission shaft. The working wing wheel is fixed to the front portion of the transmission shaft. The front end of the working pump body is provided with a pumping inlet. A pumping outlet is formed in the upper portion of the working pump body. The self-suction centrifugal pump further comprises an auxiliary pump body and the auxiliary wing wheel located in the auxiliary pump body. The auxiliary pump body is fixed behind the working pump body. The auxiliary wing wheel is fixed to the transmission shaft. The auxiliary wing wheel and the working wing wheel are separated through a pump cover or a steel plate. A transmission gap is formed between the pump cover or the steel plate and the transmission shaft. The cross section of an inner cavity of the auxiliary pump body is elliptical. The self-suction centrifugal pump is simple in structure and high in volumetric efficiency, and the up-suction height is greatly increased.
Description
Technical field
The present invention relates to a kind of pump, particularly open a kind of double-vane wheel self priming centrifugal pump.
Background technology
Often there is liquid level to be less than the situation of pump spindle center line when the application of pump, do not possess self-suction function due to Ordinary Centrifugal Pumps, thus cause pump normally to work.
In order to solve this problem, prior art occurs in that band reservoir chamber 21, vapor-liquid separation chamber and the self priming centrifugal pump of backwater hole 22, such as Fig. 1.Owing to pump intake 6 is higher than pump spindle center line, therefore after the work interior liquid filling of the pump housing 1, work wing wheel 2 is submerged in liquid, after work wing wheel 22 rotates, liquid is thrown away by centrifugal force, vacuum is formed in pump, what then no matter pump intake 6 entered is liquid or gas all can enter in the work pump housing 1, and press from both sides aeriferous liquid throw away work wing wheel enter gas-liquid separation chamber, liquid after separation air is again introduced into work wing wheel 2 by reservoir chamber 21 by backwater hole 22 and repeats above-mentioned aspiration procedure, after pipeline air to be sucked has been aspirated by working barrel body liquid entrainment.Also can enter in working barrel body because of vacuum less than the liquid of center transmission shaft line, make pump carry out properly functioning.Even if without gas in water inlet pipe, said process is still repeating, and always has partially liq to enter wing wheel from pump discharge via backwater hole.
Due to unrelated whether intake-gas, the liquid of pump discharge 7 always has part to return pump intake 6 from pump discharge 7, thus cause the volumetric efficiency of the work pump housing 1 to decline, and the amount of liquid returned from backwater hole 22 there are certain requirements, the wing wheel that otherwise works cannot carry the gas of suction secretly.Close when need to aspirate without gas if opening when backwater hole valving makes it at intake-gas.The most feasible but be difficult to carry out in actual application.Filled valve is difficult to close tight, and second major part pumping is chemical material, and corrosivity is very big and has temperature, valve material (such as rubber) to be difficult to solve.
Separately limit because of gas-liquid separation chamber's volume and the gas-entrained liquid residence time of pump, because of pump structure Suo Xian gas-liquid separation chamber cannot do the biggest, thus result in the liquid of the return pump housing and carried the unsegregated gas of part secretly, make the suction head Hs(Hs i.e. liquid level of pump to pump spindle center) the highest standard state that also can only achieve 3 ~ 4 meters, cannot limit by penetration altitude, this limits to the most very much.
Summary of the invention
It is an object of the invention to overcome defect present in prior art, it is provided that the double-vane wheel self priming centrifugal pump that the suction high, upper of a kind of simple in construction, volumetric efficiency is highly greatly increased.
The present invention is achieved in that a kind of double-vane wheel self priming centrifugal pump, including the work pump housing, work wing wheel, power transmission shaft, described work wing wheel is fixed on the front portion of described power transmission shaft, the front end of the described work pump housing is provided with pump intake, the described work pump housing be arranged over pump discharge, it is characterized in that: also include assisting the pump housing, it is positioned at the auxiliary wing wheel of described donkey pump body, the described auxiliary pump housing is fixed on the rear of the described work pump housing, described auxiliary wing wheel is fixed on described power transmission shaft, separated by pump cover or steel plate between described auxiliary wing wheel and described work wing wheel, it is provided with running clearance between described pump cover or steel plate and described power transmission shaft；The cross section ovalize of the internal cavity of the described auxiliary pump housing.
When described auxiliary wing wheel rotates in the donkey pump body with liquid, between liquid and the auxiliary wing wheel in donkey pump body, it is formed at 2 vacuum chambers on described oval long axis direction.
The peak of described auxiliary wing wheel is less than the centrage of described pump intake.
Described auxiliary wing wheel is evacuation wing wheel, and described work wing wheel is centrifugal wing wheel.
The invention has the beneficial effects as follows: the present invention need not the backwater hole that the reservoir chamber of conventional self priming pump contacts with the pump housing, the most there is not pump discharge liquid and return the situation of pump intake so that therefore volumetric efficiency of the present invention is greatly improved.The air aspirated with work wing wheel " the double-vane wheel " that cooperate by auxiliary wing wheel, it is to avoid in prior art, in centrifugal pump, gas and liquid mix gas-liquid separation the most again, cause the situation that gas-liquid separation is incomplete, affect suction head.The cross section ovalize of the internal cavity of the auxiliary pump housing of the present invention, assist wing wheel rotates to be circle, form the spatial variations between the liquid in auxiliary wing wheel and donkey pump body, the air sucked in making donkey pump body is extruded discharge, vacuum chamber is formed between liquid and auxiliary wing wheel, thus avoid the situation that the gas-liquid that water and air formed mixes because wing wheel stirring, substantially increase suction head, exceed 2 meters ~ 3 meters than existing self priming pump suction head, breach the suction head of prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is present configuration schematic diagram.
Fig. 3 is the position relationship schematic diagram between overall structure of the present invention and liquid level.
Fig. 4 is that the present invention assists the pump housing and cross-sectional structure schematic diagram when assisting wing wheel work.
Wherein: 1, the work pump housing；2, work wing wheel；3, the auxiliary pump housing；4, auxiliary wing wheel；5, power transmission shaft；6, pump intake；7, pump discharge；8, steel plate；9, liquid；10, vacuum chamber；11, the centrage of pump intake；12, pipeline；13, liquid level；21, reservoir chamber；22, backwater hole.
Detailed description of the invention
According to Fig. 2-4, the present invention includes the work pump housing 1, work wing wheel 2, power transmission shaft 5, the auxiliary pump housing 3, is positioned at the auxiliary wing wheel 4 of the described auxiliary pump housing 3.The front end of the described work pump housing 1 be provided with pump intake 6, the described work pump housing 1 be arranged over pump discharge 7, described work wing wheel 2 is fixed on the front portion of described power transmission shaft 5, the described auxiliary pump housing 3 is fixed on the rear of the described work pump housing 1, described auxiliary wing wheel 4 is fixed on described power transmission shaft 5, separated by pump cover or steel plate 8 between described auxiliary wing wheel 4 and described work wing wheel 2, between described pump cover or steel plate 8 and described power transmission shaft 5, be provided with running clearance；Described pump cover or steel plate 8 and running clearance be not for hindering power transmission shaft 5 to prevent the air flowing between the work pump housing 1 and the auxiliary pump housing 3 while rotating；The cross section ovalize of the internal cavity of the described auxiliary pump housing 3, such as Fig. 4.When described auxiliary wing wheel 4 rotates in the auxiliary pump housing 3 with liquid 9, between liquid 9 and the auxiliary wing wheel 4 in the auxiliary pump housing 3, it is formed at 2 vacuum chambers 10 on described oval long axis direction.The peak of described auxiliary wing wheel 4 is less than the centrage 11 of described pump intake.Described auxiliary wing wheel 4 is evacuation wing wheel, and described work wing wheel 2 is centrifugal wing wheel.
The present invention does not use reservoir chamber and gas-liquid separation chamber's structure of self priming pump in prior art, but on the power transmission shaft 5 of the work wing wheel 2 of common centrifugal pump, at work wing wheel 2, increasing an auxiliary wing wheel 4, this auxiliary wing wheel 4 has vacuum action and has the effect of work wing wheel when not having gas equally when there being air to enter.
Present configuration had both been different from existing conventional vacuum pump, and conventional vacuum pump is without conveying liquid functional；The present invention is also not equal to common conventional self priming centrifugal pump simultaneously.But using evacuation wing wheel and centrifugal wing wheel group pair, evacuation wing wheel has evacuation function, has conveying liquid functional concurrently, and transport pump liquid functional is mainly realized by centrifugal wing wheel.
When the auxiliary wing wheel 4 being contained in the auxiliary pump housing 3 rotates, owing to auxiliary wing wheel 4 is circular and to assist the internal cavity of the pump housing 3 be elliptical cavity, according in Fig. 4, the internal cavity cross section of auxiliary body 3 is major axis at the horizontal ellipse of axle vertical, short；When assisting wing wheel 4 to be gone to b point at upper half by a point, the space formed between auxiliary wing wheel 4 and liquid 9 is being gradually increased, form the vacuum chamber 10 being positioned at the first half, now vacuum suction air, and when assisting wing wheel 4 to be gone to c point by b point, the space formed between auxiliary wing wheel 4 and liquid 9 is gradually decreasing, and forms the vacuum chamber 10 being positioned at lower half, and is extruded by the air sucked.Go round and begin again and make the air in intake line 12 take away completely, form vacuum.I.e. will be less than the lifting liquid of liquid level 13 of power transmission shaft 5 axis to pump intake 6, enable the invention to properly functioning.
Owing to need not the backwater hole that the reservoir chamber of conventional self priming pump contacts with the pump housing, the most there is not pump discharge 7 liquid and return the situation of pump intake 6.Therefore volumetric efficiency is greatly improved.More because the air of present invention suction is not such like conventional centrifugal pump: gas and liquid mix gas-liquid separation the most again, cause gas-liquid separation incomplete, and affect suction lift of pump；But in auxiliary wing wheel 4 with the auxiliary pump housing 3, form spatial variations suck and extrude air, avoid mixing of water and air, thus improving suction head, the suction head of present invention self-priming pump suction head than ever exceeds 2 meters ~ 3 meters, breaches tradition self-priming pump suction head.
Claims (4)
1. a double-vane wheel self priming centrifugal pump, including the work pump housing, work wing wheel, power transmission shaft, described work wing wheel is fixed on the front portion of described power transmission shaft, the front end of the described work pump housing is provided with pump intake, the described work pump housing be arranged over pump discharge, it is characterized in that: also include assisting the pump housing, it is positioned at the auxiliary wing wheel of described donkey pump body, the described auxiliary pump housing is fixed on the rear of the described work pump housing, described auxiliary wing wheel is fixed on described power transmission shaft, separated by pump cover or steel plate between described auxiliary wing wheel and described work wing wheel, it is provided with running clearance between described pump cover or steel plate and described power transmission shaft；The cross section ovalize of the internal cavity of the described auxiliary pump housing.
2. take turns self priming centrifugal pump according to the double-vane described in claim 1, it is characterized in that: when described auxiliary wing wheel rotates in the donkey pump body with liquid, between liquid and the auxiliary wing wheel in donkey pump body, be formed at 2 vacuum chambers on described oval long axis direction.
3. take turns self priming centrifugal pump according to the double-vane described in claim 1, it is characterised in that: the peak of described auxiliary wing wheel is less than the centrage of described pump intake.
4. take turns self priming centrifugal pump according to the double-vane described in claim 1, it is characterised in that: described auxiliary wing wheel is evacuation wing wheel, and described work wing wheel is centrifugal wing wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290578.4A CN105971890A (en) | 2016-05-05 | 2016-05-05 | Self-suction centrifugal pump with double wing wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290578.4A CN105971890A (en) | 2016-05-05 | 2016-05-05 | Self-suction centrifugal pump with double wing wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971890A true CN105971890A (en) | 2016-09-28 |
Family
ID=56994871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610290578.4A Pending CN105971890A (en) | 2016-05-05 | 2016-05-05 | Self-suction centrifugal pump with double wing wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058122A (en) * | 2018-09-20 | 2018-12-21 | 江苏大学镇江流体工程装备技术研究院 | A kind of small-sized pump on drainage irrigation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152689A (en) * | 1996-07-26 | 2000-11-28 | Kabushiki Kaisha Yokota Seisakusho | Self-priming type cetrifugal pump |
| CN203770146U (en) * | 2014-01-26 | 2014-08-13 | 上海德耐泵业有限公司 | Vacuum self-sucking pump |
| CN204126906U (en) * | 2014-10-13 | 2015-01-28 | 辽宁格瑞特泵业有限公司 | Drive clutch self-priming apparatus |
| CN204877971U (en) * | 2015-08-28 | 2015-12-16 | 江苏亚梅泵业集团有限公司 | Novel multistage automatic control self priming pump |
| CN204984935U (en) * | 2015-08-27 | 2016-01-20 | 江苏飞翔泵业制造有限公司 | Formula is singly inhaled to single -stage does not have jam self priming pump |
| CN205117737U (en) * | 2015-11-03 | 2016-03-30 | 高善全 | Vertical self -priming pump |
-
2016
- 2016-05-05 CN CN201610290578.4A patent/CN105971890A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152689A (en) * | 1996-07-26 | 2000-11-28 | Kabushiki Kaisha Yokota Seisakusho | Self-priming type cetrifugal pump |
| CN203770146U (en) * | 2014-01-26 | 2014-08-13 | 上海德耐泵业有限公司 | Vacuum self-sucking pump |
| CN204126906U (en) * | 2014-10-13 | 2015-01-28 | 辽宁格瑞特泵业有限公司 | Drive clutch self-priming apparatus |
| CN204984935U (en) * | 2015-08-27 | 2016-01-20 | 江苏飞翔泵业制造有限公司 | Formula is singly inhaled to single -stage does not have jam self priming pump |
| CN204877971U (en) * | 2015-08-28 | 2015-12-16 | 江苏亚梅泵业集团有限公司 | Novel multistage automatic control self priming pump |
| CN205117737U (en) * | 2015-11-03 | 2016-03-30 | 高善全 | Vertical self -priming pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058122A (en) * | 2018-09-20 | 2018-12-21 | 江苏大学镇江流体工程装备技术研究院 | A kind of small-sized pump on drainage irrigation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170124 Address after: 201315 Shanghai, Pudong New Area Pu Pu Road, No. 1, building No. 2388 Applicant after: Shanghai Yihua Technology Co.,Ltd. Applicant after: Shanghai Jialin Pump Valve Co., Ltd. Applicant after: Shanghai Hongjia Energy Science and Technology Co., Ltd. Address before: 201315 Shanghai City, Pudong New Area Road No. 2388 2 Zhang Pu show room 108 Applicant before: Shanghai Hongjia Energy Science and Technology Co., Ltd. Applicant before: Shanghai Jialin Pump Valve Co., Ltd. Applicant before: Shanghai Yihua Technology Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |