CN2059688U - Self-suction centrifugal pump by vacuum priming - Google Patents
Self-suction centrifugal pump by vacuum priming Download PDFInfo
- Publication number
- CN2059688U CN2059688U CN 90210064 CN90210064U CN2059688U CN 2059688 U CN2059688 U CN 2059688U CN 90210064 CN90210064 CN 90210064 CN 90210064 U CN90210064 U CN 90210064U CN 2059688 U CN2059688 U CN 2059688U
- Authority
- CN
- China
- Prior art keywords
- level
- centrifugal pump
- pump
- diversion
- 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.)
- Expired - Lifetime
Links
- 230000037452 priming Effects 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a liquid pump. The self-suction centrifugal pump by vacuum priming is characterized in that the self-suction centrifugal pump by vacuum priming comprises two components of a centrifugal pump body and a vacuum water-diversion step. The vacuum water-diversion step is connected by an impeller and a pump body shaft to run simultaneously. The outer of the impeller is provided with a pump body, and the end of the pump body is provided with an end cover. At the same time an electromagnetic valve is arranged between the centrifugal pump body the vacuum water-diversion step, and the electromagnetic valve is also arranged between the vacuum water-diversion step and the atmosphere. The utility model has the advantages of good self-suction effect and water priming in shortest time, and the utility model is especially suitable for the fire protection and engineering with emergent situations of using water.
Description
The utility model is a kind of liquid pump, is specially adapted to the fire-fighting diversion and uses.
Normally used Centrifugal water pump all is to be dragged by motor, centrifugal pump is by the pump housing, in blade is arranged, the main shaft of pump is connected with flange with motor shaft is middle, intake pipe and outlet pipe are housed above the pump housing, at its top water injecting pipe is housed, the negative pressure of vacuum that forms after electric motor starting is by water filling reaches the purpose of suction, the shortcoming of this kind centrifugal water pump is can not self-priming, must the air in the pump be discharged, then starting electrical machinery in advance with in the water injection pump, under the effect of atmospheric pressure, low level liquid is entered in the pump discharge by waste pipe.Especially in fire-fighting is used, needing for a long time by starting to pump water, often make troubles to fire-fighting work, be installed in the fire water pump in the fixed buildings especially, all is to adopt above-mentioned form.
It is a kind of by means of the another one backing vacuum pump that the purpose of this utility model provides, and the air in the centrifugal pump is extracted out, forms vacuum, thereby reach the purpose that can draw water in the moment of electric motor starting.
Structure of the present utility model is made up of two-part.The one, the vacuum water diversion level; The one, centrifugal level.Centrifugal level and the coaxial running of diversion level, behind pump startup, the diversion level is at first devoted oneself to work, take away in the centrifugal pump and the air in the pipeline, centrifugal level idle running, when formation in the pump was enough to suct the vacuum of water, water promptly was directed in the pump, centrifugal level is devoted oneself to work, and the diversion level remains in operation being bordering under the situation of no-load.The diversion level adopts the double-action Nash hytor, mainly by vacuum impeller, vacuum pump body and vacuum pump end cap three parts are formed, the vacuum impeller and the pump housing are two eccentric positions, impeller rotates a circle, and finishes air-breathing and exhaust process twice, offers air-breathing on the end cap and exhaust window and gas distribution channel, communicate with suction port and relief opening on the end cap end face respectively, the suction port of diversion level is connected by the suction chamber of pipeline with centrifugal level.Two kinds of solenoid valves are housed on the pipeline, wherein a solenoid valve communicates with atmosphere, open near solenoid valve in the centrifugal pump during diversion level work, closed electromagnetic valve communicates with atmosphere, air in centrifugal pump and the pipeline enters the vacuum water diversion level through exhaust pipe and is also drained in the atmosphere, when centrifugal level is drawn water and is started working, closed electromagnetic valve near centrifugal pump, another solenoid valve is opened, then diversion level is bordering under the no-load situation and moves, the diversion level is connected with centrifugal level and adopts the diversion level to place the cantilever structure of centrifugal level spindle nose, centrifugal level sucks and discharges through level, the structure that centrifugal pump body adopts half-helical type suction housing and spirality delivery chamber to fuse, pump shaft passes suction chamber and extends in the diversion level, between centrifugal pump impeller and diversion level impeller, be equipped with the inter-stage bearing, play the aiding support effect, diversion level and centrifugal level are linked together by the flange on centrifugal level suction chamber upper flange and the diversion level vacuum pump body.
No matter be single-stage or multistage centrifugal pump, cantilever or dual-supporting centrifugal pump all can be connected and be gone up vacuum level and reach the self-priming purpose, as long as suitable vacuum water diversion level and its coupling of selection capacity is just passable.
The utility model has following advantage compared with the prior art: self-priming is effective, can diversion in the shortest time, some fire service pumps needn't be built under the water level, the trouble of saving investment, removing installing bottom valve and artificial pump priming from, the self-priming pump system can realize remotely-controlled operation by opening and closing solenoid valve.
The accompanying drawings embodiment:
Fig. 1 is a vacuum water diversion self-priming centrifugal pump section of structure;
Fig. 2 is a vacuum water diversion self-priming centrifugal pump diversion level A-A sectional view.
Know by Fig. 1,1 is diversion level impeller, 2 are the diversion level pump housing, 3 are diversion level end cap, 4 for connecting the pipeline of centrifugal pump and diversion level, 5,6 are respectively solenoid valve, 5 close after opening operation during for diversion, 6 close when opening, open during operation, guaranteed that moment vacuumizes usefulness with centrifugal pump, 7 is spring bearing, play a supportive role on frame 13,8 is the centrifugal pump suction chamber, 9 is the centrifugal pump delivery chamber, be connected with each other, 10 is centrifugal pump impeller, 11 is the centrifugal pump body shell, 12 are diversion level and the public axle of centrifugal level, diversion reaches to be bolted to the spindle nose end, 14 is pump housing support, connect with flange 15 between centrifugal level and the diversion level.
Claims (4)
1, a kind of vacuum water diversion self-priming centrifugal pump, it is made up of motor and centrifugal pump, of the present utility model being characterised in that in the end of centrifugal pump shaft 12 is equipped with the vacuum water diversion level, centrifugal level and the coaxial running of diversion level, and the diversion level with centrifugal grade between connect with pipeline 4 and solenoid valve 5,6.
2, by the described vacuum water diversion self-priming centrifugal pump of claim 1, it is characterized in that vacuum water diversion level center has impeller 1 and pump shaft 12 to be connected with bolt, impeller 1 is equipped with the pump housing 2 outward, in its end end cap 3 is housed.
3, by the described vacuum water diversion self-priming centrifugal pump of claim 1, it is characterized in that, be equipped with on the pipeline between centrifugal pump suction chamber 8 and the vacuum water diversion level suction chamber solenoid valve 6 is housed between solenoid valve 5, vacuum water diversion level and the atmosphere.
4,, it is characterized in that the diversion level is connected with flange 15 with centrifugal level is middle by the described vacuum water diversion self-priming centrifugal pump of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210064 CN2059688U (en) | 1990-01-16 | 1990-01-16 | Self-suction centrifugal pump by vacuum priming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210064 CN2059688U (en) | 1990-01-16 | 1990-01-16 | Self-suction centrifugal pump by vacuum priming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059688U true CN2059688U (en) | 1990-07-25 |
Family
ID=4889999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90210064 Expired - Lifetime CN2059688U (en) | 1990-01-16 | 1990-01-16 | Self-suction centrifugal pump by vacuum priming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400896B (en) * | 2006-04-06 | 2012-05-09 | 阿尔法·拉瓦尔科灵联合股份有限公司 | Self-exhausting centrifugal pump |
| CN104350282A (en) * | 2012-04-11 | 2015-02-11 | 沃特劳斯公司 | Integrated reciprocating primer drive arrangement |
| CN107939743A (en) * | 2017-12-06 | 2018-04-20 | 广州市昕恒泵业制造有限公司 | A kind of cooling centrifugal pump certainly |
-
1990
- 1990-01-16 CN CN 90210064 patent/CN2059688U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400896B (en) * | 2006-04-06 | 2012-05-09 | 阿尔法·拉瓦尔科灵联合股份有限公司 | Self-exhausting centrifugal pump |
| CN104350282A (en) * | 2012-04-11 | 2015-02-11 | 沃特劳斯公司 | Integrated reciprocating primer drive arrangement |
| US9587641B2 (en) | 2012-04-11 | 2017-03-07 | Waterous Company | Integrated reciprocating primer drive arrangement |
| CN107939743A (en) * | 2017-12-06 | 2018-04-20 | 广州市昕恒泵业制造有限公司 | A kind of cooling centrifugal pump certainly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |