CN208858533U - A kind of injecting type water ring vacuum pump - Google Patents
A kind of injecting type water ring vacuum pump Download PDFInfo
- Publication number
- CN208858533U CN208858533U CN201821694379.0U CN201821694379U CN208858533U CN 208858533 U CN208858533 U CN 208858533U CN 201821694379 U CN201821694379 U CN 201821694379U CN 208858533 U CN208858533 U CN 208858533U
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- pump housing
- pump
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- shaft
- short
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Abstract
The utility model discloses a kind of injecting type water ring vacuum pump, including chassis, motor and the pump housing are fixed on chassis, the pump housing includes the long pump housing and the short pump housing, and the pump housing is equipped with eccentric shaft, is fixed with long impeller and short impeller in shaft；Front cover disk and rear cover disk are respectively equipped on the outside of the long pump housing and the short pump housing；Pump cover is mounted on the outside of front cover disk and rear cover disk, pump cover lower part is equipped with water inlet；It is connected with bearing block on pump cover, and bearing is equipped with by bearing gland, and bearing block is equipped with lubricating cup, both ends of the shaft is fixed on bearing；The shaft end of long pump housing side is connected to motor by shaft coupling；Pump housing top be equipped with communicating pipe, communicating pipe side by expander connect an atmosphere valve body, atmosphere valve body connection one air inlet pipe, air inlet pipe lower end is connected with the nozzle positioned at atmosphere valve inner.The utility model has vacuum degree high, between high vacuum region pumping speed it is big and compact-sized, using it is reliable, be convenient to mount and dismount the features such as.
Description
Technical field
The utility model relates to vacuum pump more particularly to a kind of injecting type water ring vacuum pumps.
Background technique
Traditional injecting type water ring vacuum pump vacuum degree is not good enough, and pumping speed is smaller, and structure design is not reasonable, causes stability
It is poor, and assemble and disassemble inconvenience.
Summary of the invention
The utility model is to provide a kind of injecting type water ring vacuum pump to solve above-mentioned deficiency.
The above-mentioned purpose of the utility model is realized by technical solution below: a kind of injecting type water ring vacuum pump, packet
Chassis is included, motor and the pump housing are fixed on chassis, the pump housing includes the long pump housing and the short pump housing, and the long pump housing and the short pump housing pass through drawing
Tight screw rod connection, the long pump housing and the opposite side of the short pump housing are respectively equipped with the first midfeather and the second midfeather, the long pump housing and short
Pump housing center is equipped with eccentric shaft, is fixed with long impeller and short impeller in shaft, long impeller and short impeller are located at length
In the pump housing and the short pump housing, shaft is equipped with the first flat key and the second flat key；It is respectively equipped on the outside of the long pump housing and the short pump housing
Front cover disk and rear cover disk, front cover disk side are equipped with exhaust pressing plate；It is respectively mounted on the outside of the front cover disk and rear cover disk
There is pump cover, filler is equipped between the shaft and pump cover, and filler is reached by gland；The pump cover lower part is equipped with water inlet
Mouthful；It is connected with bearing block on the pump cover, and bearing is equipped with by bearing gland, and bearing block is equipped with lubricating cup, described turn
Axis both ends are fixed on bearing；The shaft end of the long pump housing side is connected to motor by shaft coupling；The pump housing top
Equipped with communicating pipe, communicating pipe side pass through expander and connect an atmosphere valve body, atmosphere valve body connects an air inlet pipe, air inlet pipe lower end
It is connected with the nozzle positioned at atmosphere valve inner.
Further, the shaft coupling is made of electric shaft coupling and pump shaft coupling.
Working principle of the utility model is: impeller is prejudicially mounted in the pump housing, and when the impeller is rotated, work of the water by centrifugal force
With throwing away around, rotation water ring is formed between vacuum pump body inner wall and impeller.Water ring upper inside surface and impeller hub phase
Contact, when impeller is rotated in the clockwise direction, during preceding half way around, water ring inner surface is gradually detached from wheel hub, adjacent
It is formed by cavity between two blades to be gradually increased, pumped gas is constantly inhaled by pump air inlet pipe through crescent suction hole
In cavity；Afterwards during half way around, water ring inner surface is gradually close with wheel hub, and cavity is gradually reduced between two adjacent blades, gas
Body is compressed, thus pressure is continuously increased, and when pressure increase is to when being greater than ambient pressure, gas is discharged, to constantly take out
The gas for walking sealing container forms it into certain vacuum.Atmospheric jet exhauster is a kind of jet pump, due to water ring vacuum pump
Effect, by pumping container formed it is certain give vacuum, when close to the ultimate vacuum of the pump, atmospheric pump is connected, at this point, extraneous big
Gas (or having pressed gas) and the pressure difference of air inlet pipe are very big, and under the action of this pressure difference, atmosphere (or having gas) is sharply taken out
Into intake line, by the nozzle of atmospheric pump, air velocity is further increased, thus pressure reduces rapidly, so that forming nozzle
Interior high vacuum (ultimate vacuum obviously higher than pumped), continuing will be in the gas suction pump by pumping system.
The utility model compared with prior art the advantages of be: have vacuum degree high, pumping speed is big between high vacuum region, and
It is compact-sized, using it is reliable, be convenient to mount and dismount the features such as.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below with reference to embodiment.
As shown in Figure 1, a kind of injecting type water ring vacuum pump, including chassis 1, motor 2 and the pump housing, institute are fixed on chassis 1
Stating the pump housing includes the long pump housing 3 and the short pump housing 4, and the long pump housing 3 and the short pump housing 4 are connected by stretching screw 5, the long pump housing 3 and the short pump housing 4
Opposite side is respectively equipped with the first midfeather 6 and the second midfeather 7, and the long pump housing 3 and 4 center of the short pump housing are equipped with eccentric turn
Axis 8 is fixed with long impeller 9 and short impeller 10 in shaft 8, and long impeller 9 and short impeller 10 are located at the long pump housing 3 and the short pump housing 4
Interior, shaft 8 is equipped with the first flat key 11 and the second flat key 12；The outside of the long pump housing 3 and the short pump housing 4 is respectively equipped with front cover circle
Disk 13 and rear cover disk 14,13 side of front cover disk are equipped with exhaust pressing plate 15；14 outside of the front cover disk 13 and rear cover disk
It is mounted on pump cover 16, filler 17 is equipped between the shaft 8 and pump cover 16, and filler 17 is reached by gland 18；Institute
16 lower part of pump cover is stated equipped with water inlet 19；It is connected with bearing block 20 on the pump cover 16, and axis is equipped with by bearing gland 21
22 are held, and bearing block 20 is equipped with lubricating cup 23,8 both ends of shaft are fixed on bearings 22；The shaft of 3 side of the long pump housing
8 ends are connect by shaft coupling 24 with motor 2；The pump housing top is equipped with communicating pipe 25, and communicating pipe, 25 side passed through expander
26 one atmosphere valve bodies 27 of connection, atmosphere valve body 27 connect an air inlet pipe 28, and 28 lower end of air inlet pipe is connected with positioned at atmosphere valve body 27
Internal nozzle 29.
Further, the shaft coupling 23 is made of electric shaft coupling and pump shaft coupling.
Working principle of the utility model is: impeller is prejudicially mounted in the pump housing, and when the impeller is rotated, work of the water by centrifugal force
With throwing away around, rotation water ring is formed between vacuum pump body inner wall and impeller.Water ring upper inside surface and impeller hub phase
Contact, when impeller is rotated in the clockwise direction, during preceding half way around, water ring inner surface is gradually detached from wheel hub, adjacent
It is formed by cavity between two blades to be gradually increased, pumped gas is constantly inhaled by pump air inlet pipe through crescent suction hole
In cavity；Afterwards during half way around, water ring inner surface is gradually close with wheel hub, and cavity is gradually reduced between two adjacent blades, gas
Body is compressed, thus pressure is continuously increased, and when pressure increase is to when being greater than ambient pressure, gas is discharged, to constantly take out
The gas for walking sealing container forms it into certain vacuum.Atmospheric jet exhauster is a kind of jet pump, due to water ring vacuum pump
Effect, by pumping container formed it is certain give vacuum, when close to the ultimate vacuum of the pump, atmospheric pump is connected, at this point, extraneous big
Gas (or having pressed gas) and the pressure difference of air inlet pipe are very big, and under the action of this pressure difference, atmosphere (or having gas) is sharply taken out
Into intake line, by the nozzle of atmospheric pump, air velocity is further increased, thus pressure reduces rapidly, so that forming nozzle
Interior high vacuum (ultimate vacuum obviously higher than pumped), continuing will be in the gas suction pump by pumping system.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model specification and embodiment content, directly or indirectly use
In other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (2)
1. a kind of injecting type water ring vacuum pump, it is characterised in that: including chassis, motor and the pump housing, the pump are fixed on chassis
Body includes the long pump housing and the short pump housing, and the long pump housing is connected with the short pump housing by stretching screw, the long pump housing and the opposite side of the short pump housing
It is respectively equipped with the first midfeather and the second midfeather, the long pump housing and short pump housing center are equipped with eccentric shaft, fix in shaft
Have long impeller and short impeller, long impeller and short impeller are located in the long pump housing and the short pump housing, shaft be equipped with the first flat key and
Second flat key；Front cover disk and rear cover disk are respectively equipped on the outside of the long pump housing and the short pump housing, front cover disk side is equipped with
It is vented pressing plate；It is mounted on pump cover on the outside of the front cover disk and rear cover disk, filler is equipped between the shaft and pump cover, and
Reach filler by gland；The pump cover lower part is equipped with water inlet；It is connected with bearing block on the pump cover, and passes through bearing
Gland is equipped with bearing, and bearing block is equipped with lubricating cup, and the both ends of the shaft is fixed on bearing；The long pump housing side turns
Shaft end is connected to motor by shaft coupling；The pump housing top be equipped with communicating pipe, communicating pipe side by expander connect one
Atmosphere valve body, atmosphere valve body connect an air inlet pipe, and air inlet pipe lower end is connected with the nozzle positioned at atmosphere valve inner.
2. a kind of injecting type water ring vacuum pump according to claim 1, it is characterised in that: the shaft coupling is by electric shaft coupling
With pump shaft coupling composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694379.0U CN208858533U (en) | 2018-10-19 | 2018-10-19 | A kind of injecting type water ring vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694379.0U CN208858533U (en) | 2018-10-19 | 2018-10-19 | A kind of injecting type water ring vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858533U true CN208858533U (en) | 2019-05-14 |
Family
ID=66421225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821694379.0U Active CN208858533U (en) | 2018-10-19 | 2018-10-19 | A kind of injecting type water ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858533U (en) |
-
2018
- 2018-10-19 CN CN201821694379.0U patent/CN208858533U/en active Active
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| GR01 | Patent grant |