CN109989922A - Combined type self-priming centrifugal pump - Google Patents
Combined type self-priming centrifugal pump Download PDFInfo
- Publication number
- CN109989922A CN109989922A CN201910352219.0A CN201910352219A CN109989922A CN 109989922 A CN109989922 A CN 109989922A CN 201910352219 A CN201910352219 A CN 201910352219A CN 109989922 A CN109989922 A CN 109989922A
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- assembly
- sheathed
- pump 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
Links
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 238000005213 imbibition Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
- F04D29/20—Mounting rotors on shafts
-
- 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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid 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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of compound centrifugal pumps for possessing self-suction function.Including gearbox assembly, the pump shaft engaged with gearbox assembly and the pump housing for being sheathed on pump shaft, the pump housing includes such as lower component: pump case；Seal receptacle is sheathed on pump shaft, seals with gearbox assembly end adapter；Mechanical seal is sheathed on pump shaft, cooperates with seal receptacle and seals；Impeller assembly, including one stage impeller, sencond stage impeller and three-level impeller are successively sheathed on pump shaft from one end far from gearbox assembly, and end is locked by locking member；Be equipped with certain gap between the I and II impeller, two, the department of assembly of three-level impeller fit closely assembly；Baffle is set between two, three-level impeller, is fixed by pressing plate and pump case, guide vane, is sheathed between I and II impeller and axle sleeve, the pump shaft being sheathed between I and II impeller, to limit the spacing between I and II impeller；The outside that pump case is located at one stage impeller is fixed with flange.
Description
Technical field
The invention belongs to be centrifuged pump technical field, and in particular to a kind of compound centrifugal pumps for possessing self-suction function.
Background technique
Self-priming centrifugal pump abbreviation self priming pump, water inlet pipe do not set bottom valve, and pump body structure is changed, and can store up after being allowed to parking
Deposit a part of water, by the mixing and centrifugation of air and water when starting, gradually will water inlet inner air tube discharge, the water of degassing passes through
Return flow line, which returns, to be pumped interior position appropriate and repeats the above process, to reach the centrifugal pump of self-priming water-filling purpose.
Self priming pump is in addition to starting need to pour water for the first time, and starting does not need to pour water later, through short-time running, by pumping itself
Effect can drink up water investment and run well.Self-priming centrifugal pump is easy to operate, has stronger adaptation than Ordinary Centrifugal Pumps
Property, it is widely used in the departments such as agricultural, fire-fighting, municipal administration, electric power, mine, is particularly suitable for flowing irrigation and drainage, starts frequent or liquid filling
Difficult occasion.
Combined type self-priming centrifugal pump is the high lift of a kind of offer to grow up on the basis of single-stage self-suction centrifugal pump, high pressure
The key equipment of power liquid.
The core component of centrifugal pump is impeller and guide vane.Currently, traditional Multifunctional self sucking centrifugal pump is all made of multiple Tongfangs
To impeller and multiple radial vanes.The shortcomings that this structure is as follows: (1) impeller of multiple equidirectional rotations can generate very big axis
Xiang Li can generate dynamical reaction to main shaft.Rotor generates axial displacement, causes mutually to grind between sound portion under the action of axial force
Mill, collision, cause water pump badly damaged.The presence of axial force will cause water pump can not long-time even running, reduce its use
Service life and overall performance even jeopardize the safety of operator when serious.(2) since the axial dimension of guide vane is very big, in this way
Considerably increase the production cost of radial vane.
It is retrieved, the implementation of the combined type self-priming centrifugal pump of above-mentioned technology barrier is overcome to yet there are no relevant report, this
Invention aims to solve the problem that this technical problem.
Summary of the invention
The shortcomings that in order to overcome traditional Multifunctional self sucking centrifugal pump, the present invention provides combined type self-priming centrifugal pump, the hairs
The bright single-stage lift that Multifunctional self sucking centrifugal pump not only can be improved and the production cost for reducing Multifunctional self sucking centrifugal pump, also form good
Good suction capacity reduces axial force.
The present invention is that technical solution used by solving its technical problem is:
Combined type self-priming centrifugal pump including gearbox assembly, the pump shaft engaged with gearbox assembly and is sheathed on pump shaft
The pump housing, the pump housing includes such as lower component:
Pump case, for carrying each component of the pump housing；
Seal receptacle is sheathed on pump shaft, seals with gearbox assembly end adapter；
Mechanical seal is sheathed on pump shaft, cooperates with seal receptacle and seals；
Impeller assembly, including one stage impeller, sencond stage impeller and three-level impeller are successively covered from one end far from gearbox assembly
Set on pump shaft, end is locked by locking member；Certain gap, two, the dress of three-level impeller are equipped between the I and II impeller
Assembly is fitted closely with portion；
Baffle is set between two, three-level impeller, is fixed by pressing plate and pump case,
Guide vane, is sheathed between I and II impeller and axle sleeve, the pump shaft being sheathed between I and II impeller, with limit
Determine the spacing between I and II impeller；
The outside that pump case is located at one stage impeller is fixed with flange.
The present invention devises a kind of self-priming centrifugal pump of three-level impeller, and the arrangement mode of impeller is optimized design, two,
It is fitted closely between three-level impeller, reduces the axial dimension of Multifunctional self sucking centrifugal pump, be also additionally arranged one stage impeller, one, two impellers
Between by guide vane structure, strengthen efficiency of imbibition.
Preferably, at least sencond stage impeller is identical with the construction of three-level impeller, include department of assembly and impeller body, two
Grade impeller and three-level impeller are arranged back-to-back.Two, it is arranged back-to-back between three-level impeller, has advanced optimized the arrangement side of impeller
Formula, the optimal axial dimension for reducing Multifunctional self sucking centrifugal pump reduce production cost, reduce axial force.
Preferably, the construction of the one stage impeller and the construction of sencond stage impeller are identical, and the department of assembly of guide vane is sheathed on and one
The department of assembly of grade impeller.
Preferably, the locking member is made of locking nut and lock washer, passes through matching for locking nut and lock washer
One stage impeller is locked in pump shaft by conjunction.
Preferably, the suction chamber of the pump case between the sencond stage impeller and three-level impeller is semispiral type structure.
The beneficial effects of the present invention are: the present invention devises a kind of self-priming centrifugal pump of three-level impeller, the arrangement side of impeller
Design is optimized in formula, fits closely between two, three-level impeller, reduces the axial dimension of Multifunctional self sucking centrifugal pump, also adds
One stage impeller strengthens efficiency of imbibition by guide vane structure between one, two impellers.Multistage self-priming not only can be improved in the invention
The single-stage lift of centrifugal pump and the production cost for reducing Multifunctional self sucking centrifugal pump, also form good suction capacity, reduce axial
Power.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention.
In figure: 1, gearbox assembly, 2, pump shaft, 3, pump case, 4, seal receptacle, 5, mechanical seal, 6, one stage impeller, 7, two
Grade impeller, 8, three-level impeller, 9, baffle, 10, pressing plate, 11, guide vane, 12, axle sleeve, 13, flange, 14, locking nut, 15, locking
Gasket.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.
Combined type self-priming centrifugal pump as shown in Figure 1, including gearbox assembly 1, the pump shaft engaged with gearbox assembly 12
And it is sheathed on the pump housing of pump shaft 2, the pump housing includes such as lower component:
Pump case 3, for carrying each component of the pump housing；
Seal receptacle 4 is sheathed on pump shaft 2, seals with 1 end adapter of gearbox assembly；
Mechanical seal 5 is sheathed on pump shaft 2, cooperates with seal receptacle 4 and seals；
Impeller assembly, including one stage impeller 6, sencond stage impeller 7 and three-level impeller 8, from far from gearbox assembly 1 one end according to
Secondary to be sheathed on pump shaft 2, end is locked by locking member；Certain gap, two, three-level leaf are equipped between the I and II impeller
The department of assembly of wheel fits closely assembly；
Baffle 9 is set between two, three-level impeller, fixed by pressing plate 10 and pump case 3,
Guide vane 11, is sheathed between I and II impeller and axle sleeve 12, the pump shaft 2 being sheathed between I and II impeller,
To limit the spacing between I and II impeller；
The outside that pump case 3 is located at one stage impeller 6 is fixed with flange 13.
The present invention devises a kind of self-priming centrifugal pump of three-level impeller, and the arrangement mode of impeller is optimized design, two,
It is fitted closely between three-level impeller, reduces the axial dimension of Multifunctional self sucking centrifugal pump, be also additionally arranged one stage impeller, one, two impellers
Between by guide vane structure, strengthen efficiency of imbibition.
Specifically, at least sencond stage impeller 7 is identical with the construction of three-level impeller 8, includes department of assembly and impeller sheet
Body, sencond stage impeller 7 and three-level impeller 8 are arranged back-to-back.Two, it is arranged back-to-back between three-level impeller, has advanced optimized impeller
Arrangement mode, the optimal axial dimension for reducing Multifunctional self sucking centrifugal pump, reduce production cost.
Further, the construction of the one stage impeller 6 is identical as the construction of sencond stage impeller 7, the department of assembly of guide vane 11
It is sheathed on the department of assembly with one stage impeller 6.
Specific to the present embodiment, the locking member is made of locking nut 14 and lock washer 15, passes through locking nut 14
One stage impeller 6 is locked in pump shaft 2 by the cooperation with lock washer 15.Pump between the sencond stage impeller 7 and three-level impeller 8
The suction chamber of shell 3 is semispiral type structure, reduces axial force.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (5)
1. combined type self-priming centrifugal pump including gearbox assembly (1), the pump shaft (2) engaged with gearbox assembly (1) and is arranged
The pump housing in pump shaft (2), it is characterised in that: the pump housing includes such as lower component:
Pump case (3), for carrying each component of the pump housing；
Seal receptacle (4) is sheathed on pump shaft (2), seals with gear assembly (1) end adapter；
Mechanical seal (5) is sheathed on pump shaft (2), cooperates with seal receptacle (4) and seals；
Impeller assembly, including one stage impeller (6), sencond stage impeller (7) and three-level impeller (8), from one far from gearbox assembly (1)
End is successively sheathed on pump shaft (2), and end is locked by locking member；Between the I and II impeller be equipped with certain gap, two,
The department of assembly of three-level impeller fits closely assembly；
Baffle (9) is set between two, three-level impeller, fixed by pressing plate (10) and pump case (3),
Guide vane (11), is sheathed between I and II impeller and axle sleeve (12), the pump shaft being sheathed between I and II impeller
(2), to limit the spacing between I and II impeller；
The outside that pump case (3) is located at first order impeller (6) is fixed with flange (13).
2. combined type self-priming centrifugal pump according to claim 1, it is characterised in that: at least sencond stage impeller (7) and three
The construction of grade impeller (8) is identical, includes department of assembly and impeller body, sencond stage impeller (7) and three-level impeller (8) are set back-to-back
It sets.
3. combined type self-priming centrifugal pump according to claim 2, it is characterised in that: the construction of the one stage impeller (6) with
The construction of sencond stage impeller (7) is identical, and the department of assembly of guide vane is sheathed on and the department of assembly of one stage impeller (6).
4. combined type self-priming centrifugal pump according to claim 3, it is characterised in that: the locking member is by locking nut (14)
It constitutes with lock washer (15), is locked first order impeller (6) admittedly by the cooperation of locking nut (14) and lock washer (15)
Due to pump shaft (2).
5. combined type self-priming centrifugal pump according to claim 4, it is characterised in that: the sencond stage impeller (7) and three-level leaf
The suction chamber for taking turns the pump case (3) between (8) is semispiral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352219.0A CN109989922A (en) | 2019-04-28 | 2019-04-28 | Combined type self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352219.0A CN109989922A (en) | 2019-04-28 | 2019-04-28 | Combined type self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989922A true CN109989922A (en) | 2019-07-09 |
Family
ID=67135502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910352219.0A Pending CN109989922A (en) | 2019-04-28 | 2019-04-28 | Combined type self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989922A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH390061A (en) * | 1959-09-04 | 1965-03-31 | Lederle Pumpen & Maschf | Multistage centrifugal pump driven by a canned motor |
| CN2190708Y (en) * | 1993-08-25 | 1995-03-01 | 楼文尧 | Multi-stage self suction centrifugal oil pump carried on vehicle |
| KR100951430B1 (en) * | 2009-10-14 | 2010-04-06 | 조벽래 | Self sucking turbo pump |
| CN101725536A (en) * | 2009-12-01 | 2010-06-09 | 陕西航天动力高科技股份有限公司 | Portable fire pump |
| CN101749251A (en) * | 2008-11-30 | 2010-06-23 | 大连深蓝泵业有限公司 | Scroll casing type radial split three-grade process pump |
| CN102606525A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Balance structure of rotor for starting water feeding pump |
| CN203321836U (en) * | 2013-06-09 | 2013-12-04 | 南京森林警察学院 | Portable three-stage booster water pump for forest fire control |
| CN103573692A (en) * | 2013-11-01 | 2014-02-12 | 江苏大学 | Impeller and guide vane structure of multi-stage self-priming centrifugal pump |
| CN107327406A (en) * | 2017-08-02 | 2017-11-07 | 浙江威龙泵业有限公司 | The self priming pump and its application method of a kind of machinery automatic control vacuum aided |
| CN206874490U (en) * | 2017-05-04 | 2018-01-12 | 沈阳方大泵业有限公司 | Axial subdivision three-level centrifugal pump |
| CN211039051U (en) * | 2019-04-28 | 2020-07-17 | 浙江威龙泵业有限公司 | Composite self-priming centrifugal pump |
-
2019
- 2019-04-28 CN CN201910352219.0A patent/CN109989922A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH390061A (en) * | 1959-09-04 | 1965-03-31 | Lederle Pumpen & Maschf | Multistage centrifugal pump driven by a canned motor |
| CN2190708Y (en) * | 1993-08-25 | 1995-03-01 | 楼文尧 | Multi-stage self suction centrifugal oil pump carried on vehicle |
| CN101749251A (en) * | 2008-11-30 | 2010-06-23 | 大连深蓝泵业有限公司 | Scroll casing type radial split three-grade process pump |
| KR100951430B1 (en) * | 2009-10-14 | 2010-04-06 | 조벽래 | Self sucking turbo pump |
| CN101725536A (en) * | 2009-12-01 | 2010-06-09 | 陕西航天动力高科技股份有限公司 | Portable fire pump |
| CN102606525A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Balance structure of rotor for starting water feeding pump |
| CN203321836U (en) * | 2013-06-09 | 2013-12-04 | 南京森林警察学院 | Portable three-stage booster water pump for forest fire control |
| CN103573692A (en) * | 2013-11-01 | 2014-02-12 | 江苏大学 | Impeller and guide vane structure of multi-stage self-priming centrifugal pump |
| CN206874490U (en) * | 2017-05-04 | 2018-01-12 | 沈阳方大泵业有限公司 | Axial subdivision three-level centrifugal pump |
| CN107327406A (en) * | 2017-08-02 | 2017-11-07 | 浙江威龙泵业有限公司 | The self priming pump and its application method of a kind of machinery automatic control vacuum aided |
| CN211039051U (en) * | 2019-04-28 | 2020-07-17 | 浙江威龙泵业有限公司 | Composite self-priming centrifugal pump |
Non-Patent Citations (1)
| Title |
|---|
| 机械工业部: "泵产品样本 上", vol. 1, 30 November 1997, 机械工业出版社, pages: 559 * |
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