CN110219808A - A kind of self priming centrifugal pump handling gas-liquid mixed media - Google Patents
A kind of self priming centrifugal pump handling gas-liquid mixed media Download PDFInfo
- Publication number
- CN110219808A CN110219808A CN201910675611.9A CN201910675611A CN110219808A CN 110219808 A CN110219808 A CN 110219808A CN 201910675611 A CN201910675611 A CN 201910675611A CN 110219808 A CN110219808 A CN 110219808A
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- Prior art keywords
- centrifugal pump
- pump
- liquid mixed
- gas
- mixed media
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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
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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 invention discloses the self priming centrifugal pumps that one kind can handle gas-liquid mixed media, including vacuum aided self-suction system, vacuum pump is directly installed on centrifugal pump and is driven by centrifugal pump shaft, and vacuum pump inlet is connected to centrifugal pump pump chamber by pipeline, solenoid valve and gas-liquid separation chamber.The cooling chamber import of vacuum pump is located at the higher-pressure region of outlet of centrifugal pump by pipeline connection, and cooling chamber outlet is located at the negative pressuren zone of centrifugal pump inlet by pipeline connection.Outlet of centrifugal pump matches check valve, and centrifugal pump inlet configures water flow switch.The self priming centrifugal pump self-priming speed that gas-liquid mixed media can be handled is fast, and auxiliary self-suction system the gas of centrifugal pump inlet can be discharged with centrifugal pump operation continuation.Can handle gas-liquid mixed media self priming centrifugal pump make centrifugal pump application it is wider, more efficient, cost is lower.
Description
Technical field
The present invention relates to universal machine technical field, specially a kind of self-priming centrifugation that can handle gas-liquid mixed media
Pump, belongs to general machinery equipment, is widely used in the various fields such as industrial production, emergency drought resisting water drainage.
Background technique
Centrifugal pump is widely used in national product as a kind of general machinery equipment, the major limitation that centrifugal pump uses
First is that, centrifugal pump must could work normally the height that the water in priming reservoir is sent to requirement in pump chamber in water-filled situation
Spend or require the place of pressure；Usual centrifugal pump is without the ability that voluntarily sucking liquid works.
General non-diving installing type centrifugal pump is in addition to itself carrying the self priming pump of self-suction function and by positive pressure water inlet
Outside centrifugal pump, the centrifugal pump of most of dry type installations is required to configure bottom valve reverse irrigation water starting or borrows vacuum pump auxiliary certainly
It inhales.Bottom valve fails because of getting rusty easily and blocking and bottom valve is heavy is inconvenient to install and safeguard and has gradually been eliminated, vacuum
Gradually substitution bottom valve is widely used the mode of pump auxiliary self-priming.
Vacuum aided self priming pump is that negative pressure, centrifugation are formed in centrifugal pump seal pump chamber using auxiliary self-suction system exhaust
Water in pump priming reservoir is full of pump chamber under atmospheric pressure effect to make centrifugal pump start running.
And the vacuum pump some for being traditionally used for centrifugal pump vacuum aided self-priming requires harsh, needs true use environment
Empty pump steam inlet adds the optional equipments such as filtration system and steam separation system；Some vacuum pumps are small in size being mounted on of can be convenient
Still capacity is small on centrifugal pump, the pumpdown time is long；The high still long time running meeting of some vacuum pump short time operational efficiency
Temperature rise causes greatly very much equipment damage；Some vacuum pump energy long-plays still need oil lubrication, make gas using gs-oil separator
Body discharge, lubrication oil circulation use, there are oil leak or the risks of generation waste pollution site environment.Volume is big,
Structure is complicated, use cost is high, not enough environmental protection etc. drawback make traditional vacuum aided self priming pump application and uneconomical conjunction
Reason.
Contain bulk gas in the medium of especially certain special operation conditions, in the liquid at water source containing bulk gas cause from
Heart pump import supplies water interruption and discontinuous, this needs to assist self-suction system to operate with centrifugal pump for a long time to assist exhaust
And water cannot be sucked vacuum pump.
In view of said circumstances, need to design a kind of vacuum aided self priming pump, auxiliary self-suction system can be without using lubrication
Completely dry turn of oil, capacity is big, vacuum pumping rate is fast, band cooling device can continuous long time running, it is insensitive to medium, to making
It is low with environmental requirement；It is small in size, it is not necessary that power, portable installation is separately configured；So that the pump configuration letter of vacuum aided self-priming
List, use cost are low, and working efficiency is higher.
Summary of the invention
To achieve the above object, the invention provides the following technical scheme:
Preferably, the vacuum pump is cooling vacuum pump outside unlubricated inorganic envelope.External cooling water derives from Jie of centrifugal pump
Matter.
Preferably, the anhydrous dry rotation protection device (8) of mechanical seal of centrifugal pump (1) setting does not have centrifugal pump pump chamber
When medium centrifugal pump (1) can do for a long time turn and mechanical seal will not be damaged because of dry friction.
Preferably, the centrifugal pump (1) can be the various centrifugations for rotating using impeller and generating centrifugal force to convey liquid
Pump.
Compared with prior art, the beneficial effects of the present invention are: can handle the self priming centrifugal pump of gas-liquid mixed media is
A pumpdown time specially developed for general pump field is shorter, and structure is simpler, and more efficient, more environmentally friendly auxiliary is certainly
It is sucked away from heart pump:
1. auxiliary self-suction system capacity is 3.5m3/min, centrifugal pump completion can quickly be assisted to vacuumize；Vacuum degree is
8.5mH2O；
2. clean and environmental protection, vacuum pump completely without addition lubricant, will not generate waste pollution environment in use；
3. vacuum aided self-suction system is furnished with cooling device, the water circulating cooling pumped using centrifugal pump, the sustainable length of vacuum pump
Time auxiliary vacuumizes；
4. it is adaptable, it can use vacuum pump for centrifugal pump inlet and pump intracavity gas row for containing bulk gas in medium
Centrifugal pump continuous running is assisted out；
5. the corrosivity configuration unlike material that auxiliary self-suction system can pump medium according to centrifugal pump adapts it to all operating conditions.
6. structure does not need simply to add other accessories；Maintenance is simple, use cost is low；Cost performance is high, strong applicability.
The auxiliary self-suction system that the present invention can handle the self priming centrifugal pump of gas-liquid mixed media directly colonizes in centrifugal pump
On, centrifugal pump spindle drive is connected by belt, auxiliary self-suction system can assist self-priming with completion in 10 seconds, and can be with centrifugation
The gas of centrifugal pump inlet is discharged operation continuation pump together.Can handle gas-liquid mixed media self priming centrifugal pump can make from
The application of heart pump is wider, more efficient, cost is lower.
Detailed description of the invention
Fig. 1 is structure of the invention front view；
Fig. 2 is structure of the invention side view；
Fig. 3 is vacuum pump side sectional view of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, a kind of self priming centrifugal pump handling gas-liquid mixed media, including vacuum aided self-priming system
System, vacuum pump 7 is directly installed on centrifugal pump 1 or other suitable positions, vacuum pump spindle 3 by belt 4 and belt pulley 5 and
Electromagnetic clutch 6 connect centrifugal pump main shaft 2, vacuum pump inlet 21 by pipeline 9, be mounted on pipeline 9 normally closed solenoid valve 10,
Gas-liquid separation chamber 13 is connected to centrifugal pump pump chamber.The cooling chamber import 19 of vacuum pump 7 is located at outlet of centrifugal pump 12 by the connection of pipeline 11
Higher-pressure region, cooling chamber outlet 18 by pipeline 16 connection be located at centrifugal pump inlet 15 negative pressuren zones.
The centrifugal pump 1 can configure the anhydrous dry rotation protection device 8 of mechanical seal, check valve 17 is matched in the outlet of centrifugal pump 1, from
Heart pump import configures water flow switch 14, and the fuel tank of the anhydrous dry rotation protection device 8 of mechanical seal is mounted on vacuum pump 7 or other
Suitable position.
The vacuum pump 7 can choose cooling vacuum pump outside unlubricated inorganic envelope.External cooling water derives from centrifugal pump
Medium.
The cooling water of the vacuum pump 7 by 12 higher-pressure region of outlet of centrifugal pump from import 19 access vacuum pump cooling chamber 20, by
15 negative pressuren zone of centrifugal pump inlet is flowed back in cooling chamber outlet 18.Liquid quickly flows into cooling chamber 20, from cooling from one end by higher-pressure region
20 other end of room flows back to negative pressuren zone.
13 volume of gas-liquid separation chamber at the vacuum pump inlet 21 is sufficiently large and height can more than at the top of centrifugal pump pump chamber
Guarantee that medium will not be inhaled into vacuum pump 7 when medium starts to run well full of centrifugal pump pump chamber, centrifugal pump.
The outlet of centrifugal pump check valve 17 is closed when vacuum pump 7 vacuumizes, centrifugal pump pump chamber is made to be connected to inlet pipeline
Confined space is formed, completes opening when centrifugal pump 1 starts to run well vacuumizing.
Centrifugal pump 1 can when the anhydrous dry rotation protection device 8 of the mechanical seal of the centrifugal pump 1 makes centrifugal pump pump chamber not have medium
With dry turn of long-time and mechanical seal will not be damaged because of dry friction.
The centrifugal pump 1 can be the various centrifugal pumps for rotating using impeller and generating centrifugal force to convey liquid.
Working principle:
Centrifugal pump main shaft 2 starts to rotate with the starting of prime mover, at this time in centrifugal pump pump chamber without liquid, be located at centrifugal pump into
The water flow switch 14 of mouth 15 is in closed state, and normally closed solenoid valve 10 must conduct, and electromagnetic clutch 6 obtains electric actuation, vacuum pump 7
Centrifugal pump main shaft 2 is connected by belt 4 and belt pulley 5 and drives the exhaust that starts running, the closure of outlet of centrifugal pump check valve 17 makes to be centrifuged
It pumps pump chamber connection inlet tube and forms airtight chamber, the gas in centrifugal pump pump chamber is constantly pumped to centrifugal pump pump by vacuum pump 7
Other than chamber, centrifugal pump pump cavity pressure is gradually reduced to form vacuum, the liquid in source under atmospheric pressure effect by inlet pipeline into
Enter centrifugal pump pump chamber, centrifugal pump 1 starts to work normally when liquid is full of pump chamber, and outlet of centrifugal pump check valve 17 starts to arrange
Water, at the same time, the water flow switch 14 of centrifugal pump inlet are in an off state by flow impact, and the power-off of normally closed solenoid valve 10 is closed
It closes, the power-off separation of electromagnetic clutch 6, vacuum pump 7 stops working.
When the liquid perimeter or inside for needing to be sucked are containing bulk gas, gas can enter pump chamber with medium,
Gas causes entry into water inlet pipe after entering centrifugal pump pump chamber and the liquid of pump chamber is retracted because of negative pressure deficiency, by water inlet pipe original road,
The in-pipe flow of centrifugal pump water inlet at this time disappears, and the water flow switch 14 after losing the shock of water flow, positioned at centrifugal pump inlet is automatic extensive
Reclosing conjunction state, normally closed solenoid valve 10 must conduct again, electromagnetic clutch 6 obtains electric actuation, and vacuum pump 7 will be again started up beginning
Exhaust, after forming vacuum, liquid in centrifugal pump water inlet pipe and centrifugal pump pump chamber and being again filled with pump chamber, vacuum pump 7 stop work
Make, centrifugal pump 1 restores normal operation.This process because pumped liquid perimeter and internal air content number will be repeated several times, it is straight
To the whole tasks of completion.This process is also known as the drainage exhaust process for solving centrifugal pump " snoring ".
In the whole process, at outlet of centrifugal pump 12 highly pressurised liquid from vacuum pump cooling chamber import 19 enter cooling chamber 20,
And the negative pressuren zone from centrifugal pump inlet 15 is flowed back to from cooling chamber outlet 18.Cooling water compresses slide plate friction in vacuum pump and air
The heat of generation, which conducts, makes vacuum pump continue to run in low-temperature condition.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
For all spirit in invention within principle, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention
Within the scope of shield.
Claims (9)
1. one kind can handle the self priming centrifugal pump of gas-liquid mixed media, including vacuum aided self-suction system, it is characterised in that true
Sky pump (7) is directly installed on centrifugal pump 1 or other backing positions, and vacuum pump spindle (3) and centrifugal pump main shaft (2) transmission connect
It connects, vacuum pump inlet (21) is connected to centrifugal pump pump chamber by pipeline (9), gas-liquid separation chamber (13), is equipped on pipeline (9) normally closed
The import (19) of solenoid valve (10), the cooling chamber (20) of vacuum pump (7) is located at outlet of centrifugal pump (12) by pipeline (11) connection
Higher-pressure region, cooling chamber export the negative pressuren zone that (18) are located at centrifugal pump inlet (15) by pipeline (16) connection.
2. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that vacuum pump
(7) external cooling water derives from the medium of centrifugal pump.
3. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that described true
Gas-liquid separation chamber (13) volume at empty pump inlet (21) is sufficiently large and height is more than that can guarantee that medium fills at the top of centrifugal pump pump chamber
Medium will not be inhaled into vacuum pump (7) when full centrifugal pump pump chamber, centrifugal pump start to run well.
4. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that it is described from
Heart pump outlet is equipped with check valve (17) and is closed when vacuum pump (7) vacuumizes, forms centrifugal pump pump chamber connection inlet pipeline
Confined space completes opening when centrifugal pump (1) starts to run well vacuumizing.
5. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that it is described from
Heart pump (1) is equipped with the anhydrous dry rotation protection device 8 of mechanical seal.
6. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that centrifugal pump
Import configures water flow switch (14).
7. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 1, it is characterised in that it is described from
Heart pump (1) can be the various centrifugal pumps for rotating using impeller and generating centrifugal force to convey liquid.
8. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 5, it is characterised in that the machine
The fuel tank that tool seals anhydrous dry rotation protection device (8) is mounted on vacuum pump (7) or other suitable positions.
9. a kind of self priming centrifugal pump that can handle gas-liquid mixed media according to claim 5, it is characterised in that described true
Sky pump main shaft (3) and centrifugal pump main shaft (2) is sequentially connected by belt (4) and belt pulley (5) and electromagnetic clutch (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675611.9A CN110219808A (en) | 2019-07-25 | 2019-07-25 | A kind of self priming centrifugal pump handling gas-liquid mixed media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675611.9A CN110219808A (en) | 2019-07-25 | 2019-07-25 | A kind of self priming centrifugal pump handling gas-liquid mixed media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219808A true CN110219808A (en) | 2019-09-10 |
Family
ID=67813873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675611.9A Withdrawn CN110219808A (en) | 2019-07-25 | 2019-07-25 | A kind of self priming centrifugal pump handling gas-liquid mixed media |
Country Status (1)
| Country | Link |
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| CN (1) | CN110219808A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112810A (en) * | 2020-07-31 | 2020-12-22 | 辽宁三三工业有限公司 | Pump priming system and method of centrifugal pump system |
| CN112253474A (en) * | 2020-09-23 | 2021-01-22 | 辽宁三三工业有限公司 | Pipeline countercurrent automatic blocking device for centrifugal pump system |
| CN112594196A (en) * | 2020-12-09 | 2021-04-02 | 湖南精工特泵有限公司 | Vacuum self-suction device for pump |
| CN115434919A (en) * | 2022-10-08 | 2022-12-06 | 新界泵业(浙江)有限公司 | Self-priming pump |
| WO2023115617A1 (en) * | 2021-12-23 | 2023-06-29 | 江苏大学 | Pneumatic waterless starting self-priming device |
| US11739755B2 (en) | 2021-12-23 | 2023-08-29 | Jiangsu University | Pneumatic type water-free starting self-priming device |
-
2019
- 2019-07-25 CN CN201910675611.9A patent/CN110219808A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112810A (en) * | 2020-07-31 | 2020-12-22 | 辽宁三三工业有限公司 | Pump priming system and method of centrifugal pump system |
| CN112253474A (en) * | 2020-09-23 | 2021-01-22 | 辽宁三三工业有限公司 | Pipeline countercurrent automatic blocking device for centrifugal pump system |
| CN112594196A (en) * | 2020-12-09 | 2021-04-02 | 湖南精工特泵有限公司 | Vacuum self-suction device for pump |
| WO2023115617A1 (en) * | 2021-12-23 | 2023-06-29 | 江苏大学 | Pneumatic waterless starting self-priming device |
| US11739755B2 (en) | 2021-12-23 | 2023-08-29 | Jiangsu University | Pneumatic type water-free starting self-priming device |
| CN115434919A (en) * | 2022-10-08 | 2022-12-06 | 新界泵业(浙江)有限公司 | Self-priming pump |
| CN115434919B (en) * | 2022-10-08 | 2023-11-10 | 新界泵业(浙江)有限公司 | Self-priming pump |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190910 |
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| WW01 | Invention patent application withdrawn after publication |