CN204402911U - The self-priming multistage centrifugal pump of split - Google Patents
The self-priming multistage centrifugal pump of split Download PDFInfo
- Publication number
- CN204402911U CN204402911U CN201520064176.3U CN201520064176U CN204402911U CN 204402911 U CN204402911 U CN 204402911U CN 201520064176 U CN201520064176 U CN 201520064176U CN 204402911 U CN204402911 U CN 204402911U
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- CN
- China
- Prior art keywords
- self
- priming
- priming apparatus
- centrifugal pump
- multistage centrifugal
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- Expired - Fee Related
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Classifications
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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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/043—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump being hand operated or of the reciprocating type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides the self-priming multistage centrifugal pump of a kind of split.Comprise multistage centrifugal pump, sucking pipe and self-priming apparatus, self-priming apparatus comprises upper shell, lower shell body and diaphragm, diaphragm is clipped between upper shell and lower shell body, with intakeport on upper shell, with relief opening on lower shell body, diaphragm arranges ventilating hole, intakeport, relief opening and ventilating hole place are all provided with one-way valve, pull bar is connected with in the middle of diaphragm, also comprise self-priming apparatus drive motor, one end of sucking pipe is connected with the suction casing of multistage centrifugal pump, the other end is connected with the intakeport of self-priming apparatus, self-priming apparatus and self-priming apparatus drive motor are arranged on the housing of multistage centrifugal pump, the output shaft of self-priming apparatus drive motor is connected by driving mechanism with between self-priming apparatus pull bar.Self-priming apparatus combines with common multistage centrifugal pump by the utility model, and the power source of self-priming apparatus takes from the motor of configuration separately, and after by air emptying in suction pipe and pump, pump can be opened motor and normally work.
Description
Technical field
The utility model relates to a kind of multistage centrifugal pump, particularly a kind of self-priming multistage centrifugal pump.
Background technique
Multistage centrifugal pump has the advantages such as energy-efficient, performance range is wide, security of operation is steady, low noise, long lifetime, installation and maintenance are convenient; By changing the material of pump, seal form and increase cooling system, hot water, oils, corrosivity and the medium etc. containing abrasive material can be carried.But water pump, before startup, first must be full of water in pump case and suction sleeve, this is because when having air to exist, multistage centrifugal pump is inhaled population vacuum and cannot be formed and keep.In order to solve the water-filling problem of water pump before starting, more existing open reports about self-priming apparatus or self priming centrifugal pump.
Application number is in the patent document of 201320477440.7, discloses a kind of self-priming apparatus of multistage centrifugal pump.This self-priming apparatus, be provided with refluxing chamber between the intake tunnel and impeller cavity of the pump housing, refluxing chamber is communicated with downside and the impeller cavity of intake tunnel respectively, the chamber wall of refluxing chamber is connected with exhaust passage, exhaust passage is provided with elastic valve.This self-priming apparatus solves that existing centrifugal pump suction capacity is poor, effect is unstable, wants to improve required change of suction capacity and requires the problems such as high.Structure is simple, suction capacity is strong, wide accommodation.
Application number is in the patent document of 02233996.5, discloses a kind of Self-priming.This pump energy self-priming, do not leak, structure is simple, volume is little, the life-span is long, efficiency is high, safe and reliable, easy to operate, can be used for tall building for hot water or cold water, be suitable for mine, power plant, chemical plant, ships water delivery, transporting oil and chemical liquids, gas, liquid, solid three-phase liquid.
Technique scheme all relate to the change of the agent structure to pump, and this not only can cause the rising of the manufacture cost of pump, and can cause adverse effect to the overall operation performance of pump.
Application number is in the patent document of 92209212.5, the strong self-suction sewage pump disclosed; Application number is in the patent document of 200310107152.3, the technological schemes such as the Strong self priming pump disclosed, and on the basis of agent structure not changing pump, by increasing the mode of self-priming apparatus, achieves self-absorption function.But the self-priming apparatus of these technological schemes needs to drive by the mair motor of pump, and needs to configure other Added Management and valve.
Summary of the invention
The purpose of this utility model is to provide one with pump isolated operation work, do not interfere with each other, the self-priming multistage centrifugal pump of split that cost is low, easy to install.
The purpose of this utility model is achieved in that and comprises multistage centrifugal pump, sucking pipe and self-priming apparatus, described self-priming apparatus comprises upper shell, lower shell body and diaphragm, diaphragm is clipped between upper shell and lower shell body, with intakeport on upper shell, with relief opening on lower shell body, diaphragm arranges ventilating hole, intakeport, relief opening and ventilating hole place are all provided with one-way valve, pull bar is connected with in the middle of diaphragm, lower shell body is stretched out in pull bar lower end, also comprise self-priming apparatus drive motor, one end of sucking pipe is connected with the suction casing of multistage centrifugal pump, the other end of sucking pipe is connected with the intakeport of self-priming apparatus, self-priming apparatus and self-priming apparatus drive motor are arranged on the housing of multistage centrifugal pump, the output shaft of self-priming apparatus drive motor is connected by driving mechanism rotary motion being converted to straight line motion with between self-priming apparatus pull bar.
The utility model can also comprise:
1, the housing that described self-priming apparatus and self-priming apparatus drive motor are arranged on multistage centrifugal pump refers to: self-priming apparatus drive motor is arranged on the end of the water exit end of multistage centrifugal pump by bearing support, self-priming apparatus and described bearing support are connected.
2, described driving mechanism rotary motion being converted to straight line motion is: on the output shaft of self-priming apparatus drive motor, fixedly mount an eccentric wheel, crank at eccentric wheel cover, described crank and self-priming apparatus pull bar hinged.
3, bearing is provided with between eccentric wheel and crank.
4, described driving mechanism rotary motion being converted to straight line motion is: the output shaft of self-priming apparatus drive motor has one section of bending section, one end of fork is sleeved on bending section, and the other end and the self-priming apparatus pull bar of fork are hinged.
5, comprise plural ventilating hole, each ventilating hole be evenly distributed on pull bar and diaphragm tie point for the center of circle circumferentially, each ventilating hole is provided with one-way valve.
6, intakeport is positioned at the center of upper shell, and relief opening arranged off-centre is on lower shell body.
Self-priming apparatus combines with common multistage centrifugal pump by the utility model, and common multistage centrifugal pump installs a set of self-priming apparatus additional, and self-priming apparatus, with independent self-priming apparatus drive motor, forms the self-priming multistage centrifugal pump of split.The power source of self-priming apparatus takes from the motor of configuration separately, and after by air emptying in suction pipe and pump, pump can be opened mair motor and normally work.
Self-priming apparatus of the present utility model itself can complete suction, exhaust work, so low valve need not be installed additional, therefore its structure simple, install and use easy to maintenance, efficiency is high, suction lift is large, self-priming time is short, and need not pour water all the time.
The advantage that the self-priming multistage centrifugal pump of split of the present utility model compares with Traditional Multistage Pump is mainly reflected in:
(1) utilize the self-priming apparatus exhaust diversion of configuration when starting, do not need vacuum pump, the equipment such as Jet injector, submersible pump, front-mounted pump and corresponding pipeline thereof, also need not configure bottom valve simultaneously.
(2) each maximum suction lift 6 meters; The air-breathing tube pump time is only 10-30s;
(3) breach the restriction of main pump " permission suction head ", operationally, even if there is " dehydration " phenomenon, self-priming apparatus, by automatically starting air-breathing rapidly, reaches the effect of runback of cutting off the water supply to main pump at any time.
(4) namely unique self-priming apparatus is split with main pump, and interrelated, and isolated operation separately.Fully meet multistage centrifugal pump and be furnished with Equilibrator, before starting pump, pump chamber must be full of the needs of medium.Make split self-priming multistage centrifugal pump complete machine security of operation, working life extends.
(5) the mining multistage pump mounting type that the self-priming multistage centrifugal pump of split is more traditional, save supplementary equipment and the pipelines such as vacuum pump, Jet injector, front-mounted pump, submersible pump, namely save large number quipments and purchased fund, reduced engineering cost, reduce operating cost; In turn save mine laneway space and floor space.And complete equipment simplifies, be convenient to maintenance, maintenance management.
The self-priming multistage centrifugal pump of split of the present utility model solves that to suct lift low in the past, the problems such as the bottom valve amount of not leaking, and owing to changing mounting type, not only energy-conservation, little investment but also possess skills reliable, floor space is little.The feature such as easy to maintenance, can replace the form of current most of coal master's draining pump configuration front-mounted pump, and has and be very widely used in and popularizing prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the self-priming multistage centrifugal pump of split of the present utility model.
Fig. 2 is a kind of drive connection schematic diagram between self-priming apparatus and self-priming apparatus drive motor.
Fig. 3 is the structural representation when diaphragm moves downward of self-priming apparatus.
Fig. 4 is the structural representation when diaphragm moves upward of self-priming apparatus.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail.
Composition graphs 1, the self-priming multistage centrifugal pump of split of the present utility model comprises multistage centrifugal pump 20, sucking pipe 22, self-priming apparatus 21 and self-priming apparatus drive motor 23.
Composition graphs 3 and Fig. 4 simultaneously, self-priming apparatus comprises upper shell 1, lower shell body 2, diaphragm 3, diaphragm is clipped between upper shell 1 and lower shell body 2, forms cavity A and cavity B, with intakeport 7 on upper shell, with relief opening on lower shell body, diaphragm arranges ventilating hole, described intakeport, relief opening and ventilating hole place are separately installed with one-way valve 4,6,5, be connected with pull bar 8 in the middle of diaphragm, pull bar lower end is stretched out lower shell body and and is provided with sealing between lower shell body.
One end of sucking pipe 22 is connected with the suction casing of multistage centrifugal pump 20, and the other end of sucking pipe 22 is connected with the intakeport 7 of self-priming apparatus, and self-priming apparatus 21 and self-priming apparatus drive motor 23 are arranged on the housing of multistage centrifugal pump.Self-priming apparatus drive motor 23 is arranged on the end of the water exit end of multistage centrifugal pump 20 by bearing support 24, self-priming apparatus 21 and described bearing support phase 24 connect.
Composition graphs 2 simultaneously, the output shaft of self-priming apparatus drive motor is connected by driving mechanism rotary motion being converted to straight line motion with between self-priming apparatus pull bar, rotary motion is converted to the specific implementation of the driving mechanism of straight line motion: on the output shaft of self-priming apparatus drive motor 23, fixedly mount an eccentric wheel 12 by connecting key 11,13 are cranked at eccentric wheel sleeve, be provided with bearing 14 between eccentric wheel and crank, crank and self-priming apparatus pull bar 8 lower end hinged.
Driving mechanism rotary motion being converted to straight line motion also can be realized by crankrocker mechanism, be specially: the output shaft of self-priming apparatus drive motor has one section of bending section, one end of fork is sleeved on this bending section, and the other end and the self-priming apparatus pull bar lower end of fork are hinged.
The quantity of ventilating hole can be one, also can be two or more.If there is plural ventilating hole, then each ventilating hole is evenly distributed on around pull bar and diaphragm joint, and each ventilating hole is provided with one-way valve.Intakeport is positioned at the center of upper shell, and relief opening is positioned at the outside of lower shell body.
When self-priming apparatus works, connecting rod band dynamic diaphragm is reciprocating, and as shown in Figure 3, when diaphragm moves downward, cavity A becomes vacuum state, and the air of suction pipe is inhaled into cavity A by one-way valve 4; The gas of cavity B is compressed simultaneously, and exhaust opened by one-way valve 6.As shown in Figure 4, when diaphragm moves upward, one-way valve 4 is closed, cavity A becomes high pressure conditions, cavity B becomes vacuum state, and exhaust opened by one-way valve 5, and one-way valve 6 is closed, cavity A gas enters cavity B by one-way valve 5, when diaphragm moves downward again, cavity B becomes high pressure conditions, and one-way valve 5 is closed, one-way valve 6 is opened, air discharged to air.Such to-and-fro motion is just discharged pump suction pipe and pump chamber air instantaneously, and meanwhile, in water reservoir, instant water pours in suction pipe and pump chamber.Main pump is made to reach operating condition rapidly.
Upper and lower 2 the space die cavities of A, B of self-priming apparatus, by one-way valve 4, one-way valve 5, one-way valve 6 reciprocal motion, carry out air-breathing and exhaust simultaneously, and this forms bidirectional-movement effect.Under bidirectional-movement effect, make to form vacuum in pump chamber, make water be full of pump chamber rapidly.When pouring water, the period of exhaust of strong self-suction device is a process, sucks the air of assembling in water pipe and main pump chamber and at centrifugal pump prestart, pump inside is full of fed sheet of a media in order to excavationg pump.The power source of self-priming apparatus takes from the motor of configuration separately, and after by air emptying in suction pipe and pump, pump can be opened motor and normally work.
Claims (9)
1. the self-priming multistage centrifugal pump of split, comprise multistage centrifugal pump, sucking pipe and self-priming apparatus, described self-priming apparatus comprises upper shell, lower shell body and diaphragm, diaphragm is clipped between upper shell and lower shell body, with intakeport on upper shell, with relief opening on lower shell body, diaphragm arranges ventilating hole, intakeport, relief opening and ventilating hole place are all provided with one-way valve, pull bar is connected with in the middle of diaphragm, lower shell body is stretched out in pull bar lower end, it is characterized in that: also comprise self-priming apparatus drive motor, one end of sucking pipe is connected with the suction casing of multistage centrifugal pump, the other end of sucking pipe is connected with the intakeport of self-priming apparatus, self-priming apparatus and self-priming apparatus drive motor are arranged on the housing of multistage centrifugal pump, the output shaft of self-priming apparatus drive motor is connected by driving mechanism rotary motion being converted to straight line motion with between self-priming apparatus pull bar.
2. the self-priming multistage centrifugal pump of split according to claim 1, it is characterized in that the housing that described self-priming apparatus and self-priming apparatus drive motor are arranged on multistage centrifugal pump refers to: self-priming apparatus drive motor is arranged on the end of the water exit end of multistage centrifugal pump by bearing support, self-priming apparatus and described bearing support are connected.
3. the self-priming multistage centrifugal pump of split according to claim 1 and 2, it is characterized in that described driving mechanism rotary motion being converted to straight line motion is: on the output shaft of self-priming apparatus drive motor, fixedly mount an eccentric wheel, crank at eccentric wheel cover, described crank and self-priming apparatus pull bar hinged.
4. the self-priming multistage centrifugal pump of split according to claim 3, is characterized in that: be provided with bearing between eccentric wheel and crank.
5. the self-priming multistage centrifugal pump of split according to claim 1 and 2, it is characterized in that described driving mechanism rotary motion being converted to straight line motion is: the output shaft of self-priming apparatus drive motor has one section of bending section, one end of fork is sleeved on bending section, and the other end and the self-priming apparatus pull bar of fork are hinged.
6. the self-priming multistage centrifugal pump of split according to claim 1 and 2, is characterized in that: comprise plural ventilating hole, each ventilating hole be evenly distributed on pull bar and diaphragm tie point for the center of circle circumferentially, each ventilating hole is provided with one-way valve.
7. the self-priming multistage centrifugal pump of split according to claim 3, is characterized in that: comprise plural ventilating hole, each ventilating hole be evenly distributed on pull bar and diaphragm tie point for the center of circle circumferentially, each ventilating hole is provided with one-way valve.
8. the self-priming multistage centrifugal pump of split according to claim 4, is characterized in that: comprise plural ventilating hole, each ventilating hole be evenly distributed on pull bar and diaphragm tie point for the center of circle circumferentially, each ventilating hole is provided with one-way valve.
9. the self-priming multistage centrifugal pump of split according to claim 5, is characterized in that: comprise plural ventilating hole, each ventilating hole be evenly distributed on pull bar and diaphragm tie point for the center of circle circumferentially, each ventilating hole is provided with one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064176.3U CN204402911U (en) | 2015-01-23 | 2015-01-23 | The self-priming multistage centrifugal pump of split |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064176.3U CN204402911U (en) | 2015-01-23 | 2015-01-23 | The self-priming multistage centrifugal pump of split |
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| Publication Number | Publication Date |
|---|---|
| CN204402911U true CN204402911U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520064176.3U Expired - Fee Related CN204402911U (en) | 2015-01-23 | 2015-01-23 | The self-priming multistage centrifugal pump of split |
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| CN (1) | CN204402911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448392A (en) * | 2016-05-12 | 2017-12-08 | 格兰富控股联合股份公司 | Centrifugal pump |
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
-
2015
- 2015-01-23 CN CN201520064176.3U patent/CN204402911U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448392A (en) * | 2016-05-12 | 2017-12-08 | 格兰富控股联合股份公司 | Centrifugal pump |
| CN107448392B (en) * | 2016-05-12 | 2019-06-04 | 格兰富控股联合股份公司 | Centrifugal pump |
| TWI723641B (en) * | 2016-05-12 | 2021-04-01 | 丹麥商葛蘭富控股公司 | Centrifugal pump |
| US11067086B2 (en) | 2016-05-12 | 2021-07-20 | Grundfos Holding A/S | Centrifugal pump |
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
| CN108457862B (en) * | 2018-04-09 | 2024-03-26 | 浙江工业大学 | Self-priming device and centrifugal 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20190123 |