CN208996889U - A kind of water pump with injection apparatus - Google Patents
A kind of water pump with injection apparatus Download PDFInfo
- Publication number
- CN208996889U CN208996889U CN201821605944.1U CN201821605944U CN208996889U CN 208996889 U CN208996889 U CN 208996889U CN 201821605944 U CN201821605944 U CN 201821605944U CN 208996889 U CN208996889 U CN 208996889U
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- Prior art keywords
- mechanical seal
- water pump
- ejector
- connect
- water
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Abstract
The utility model discloses a kind of water pumps with injection apparatus, mechanical seal chamber is equipped in it, the main shaft of water pump is connect after passing through mechanical seal chamber with impeller, mechanical seal is equipped in mechanical seal chamber, water pump further includes ejector, the water inlet of ejector and the exhalant canal of water pump connect, and the injection water outlet of ejector and the intake tunnel of water pump connect, and the air entry of ejector is connect with mechanical seal chamber.The case where mechanical seal is failed caused by the utility model is avoided that because of the unsmooth or gas collection of mechanical seal chamber exhaust.
Description
Technical field
The utility model relates to a kind of water pumps, more particularly to a kind of water pump with injection apparatus.
Background technique
Mechanical seal chamber is equipped in water pump, the motor shaft of water pump is connect after passing through mechanical seal chamber with impeller, mechanical close
It seals and is equipped with mechanical seal in chamber, be sealed by mechanical seal, mechanical seal is the vulnerable part of water pump, the friction of mechanical seal
Pair is usually graphite/carbon SiClx, is prone to wear, and especially when mechanical seal chamber is vented unsmooth or gas collection, causes mechanical seal
Dry grinding, can cause mechanical seal to be failed, increase maintenance time and cost in a short time.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of water pump with injection apparatus, be avoided that because
Mechanical seal chamber is vented the case where mechanical seal caused by unsmooth or gas collection is failed.
Above-mentioned technical problem is solved, the technical solution adopted in the utility model is as follows:
A kind of water pump with injection apparatus, in be equipped with mechanical seal chamber, the main shaft of water pump pass through after mechanical seal chamber with
Impeller connection, is equipped with mechanical seal in mechanical seal chamber, characterized in that the water pump further includes ejector, ejector into
The connection of the exhalant canal of the mouth of a river and water pump, the injection water outlet of ejector and the intake tunnel of water pump connect, the air-breathing of ejector
Mouth is connect with mechanical seal chamber.
Apopore is offered on the side wall of the exhalant canal of the water pump, is provided on the side wall of the intake tunnel of water pump
Inlet opening is provided with venthole in the upper end of mechanical seal chamber, and the water inlet of ejector is connect by water inlet pipe with apopore, jet stream
The injection water outlet of device is connect by outlet pipe with inlet opening, and the air entry of ejector is connect by air intake duct with venthole.
The water inlet pipe is connect by the first pipe fitting with apopore, and outlet pipe is connected by the second pipe fitting and inlet opening
It connects, air intake duct is connect by third pipe fitting with venthole.
Compared with prior art, the utility model has the following beneficial effects:
1, the gas assembled in mechanical seal chamber is sucked out by ejector in the utility model, avoids because mechanical seal chamber is arranged
The case where mechanical seal caused by gas is unsmooth or gas collection is failed, to reduce maintenance cost, the service life of mechanical seal is more
It is long, also just reduce the cost of accessory.
2, the ejector of the utility model directly quotes the high pressure water of the exhalant canal of water pump, under the effect of the pressure, small
Part water flow is separated from the exhalant canal of water pump automatically, is flowed through the intake tunnel for being back to water pump after ejector, is flowed through in water flow
During ejector, the inner cavity of ejector forms negative pressure, so that the air entry of ejector goes out gas from mechanical seal chamber interior suction.
As it can be seen that the utility model is sucked out in mechanical seal chamber using the pressure difference of itself by ejector without external impetus
Gas, structure is simple, at low cost.And water flow flow through ejector from exhalant canal after be back to intake tunnel again, form circulation.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model；
Fig. 2 is the schematic front view of the utility model.
Appended drawing reference meaning in figure:
1- mechanical seal chamber；2- ejector；3- outlet pipe；4- mechanical seal；5- water inlet pipe；6- air intake duct；7- main shaft；8-
Exhalant canal；9- impeller；10- intake tunnel；The first pipe fitting of 11-；The second pipe fitting of 12-；13- third pipe fitting.
Specific embodiment
The utility model is further described below with reference to embodiment.
A kind of water pump with injection apparatus as depicted in figs. 1 and 2, it is interior to be equipped with mechanical seal chamber 1, the main shaft 7 of water pump
It being connect after mechanical seal chamber 1 with impeller 9, main shaft 7 is also connect with the motor of water pump, it is rotated by 7 impeller of main shaft,
It is equipped with mechanical seal 4 in mechanical seal chamber 1, rotary seal, mechanical seal chamber and mechanical seal isolation are realized by mechanical seal 4
The installation room of the installation room and motor of impeller.Water pump further includes ejector 2, and the water outlet of the water inlet and water pump of ejector 2 is logical
Road 8 connects, and the injection water outlet of ejector 2 and the intake tunnel 10 of water pump connect, the air entry and mechanical seal chamber of ejector 2
1 connection.When starting water pump, the water flow of the exhalant canal 8 of water pump is the biggish high pressure water of pressure, under the effect of the pressure, small
Part water flow is separated from the exhalant canal of water pump 8 automatically, the intake tunnel 10 that water pump is back to after ejector 2 is flowed through, in water flow
During flowing through ejector 2, the inner cavity of ejector 2 forms negative pressure, so that the air entry of ejector 2 is out of mechanical seal chamber 1
Gas is sucked out.
The specific mounting structure of ejector 2 are as follows: apopore is offered on the side wall of the exhalant canal 8 of water pump, in water pump
Intake tunnel 10 side wall on be provided with inlet opening, be provided with venthole, the water inlet of ejector 2 in the upper end of mechanical seal chamber 1
It is connect by water inlet pipe 5 with the apopore of exhalant canal 8, the injection water outlet of ejector 2 passes through outlet pipe 3 and intake tunnel 10
Inlet opening connection, the air entry of ejector 2 connect by air intake duct 6 with venthole.Water inlet pipe 5 by the first pipe fitting 11 with
Apopore connection, outlet pipe 3 are connect by the second pipe fitting 12 with inlet opening, and air intake duct 6 passes through third pipe fitting 13 and outlet
Hole connection, the first pipe fitting 11, the second pipe fitting 12 and third pipe fitting 13 are conventional pipe fitting.
It is general to select more small-sized ejector according to the amount for the gas that need to be extracted out.
The above embodiments of the present invention is not the restriction to scope of protection of the utility model, the reality of the utility model
It is without being limited thereto to apply mode, all this kind above content according to the present utility model, according to the ordinary technical knowledge of this field and used
With means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model above structure is made its
The modification, replacement or change of its diversified forms, shall fall within the scope of the present invention.
Claims (3)
1. a kind of water pump with injection apparatus, interior to be equipped with mechanical seal chamber, the main shaft of the water pump passes through the mechanical seal
It being connect after chamber with impeller, mechanical seal is equipped in the mechanical seal chamber, characterized in that the water pump further includes ejector,
The water inlet of the ejector and the exhalant canal of water pump connect, the intake tunnel of the injection water outlet and water pump of the ejector
Connection, the air entry of the ejector are connect with mechanical seal chamber.
2. the water pump according to claim 1 with injection apparatus, it is characterised in that: in the side of the exhalant canal of the water pump
Apopore is offered on wall, is provided with inlet opening on the side wall of the intake tunnel of the water pump, in the upper of the mechanical seal chamber
End is provided with venthole, and the water inlet of the ejector is connect by water inlet pipe with apopore, the injection water outlet of the ejector
It is connect by outlet pipe with inlet opening, the air entry of the ejector is connect by air intake duct with venthole.
3. the water pump according to claim 2 with injection apparatus, it is characterised in that: the water inlet pipe passes through the first pipe fitting
Connect with apopore, the outlet pipe connect by the second pipe fitting with inlet opening, the air intake duct pass through third pipe fitting and
Venthole connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605944.1U CN208996889U (en) | 2018-09-29 | 2018-09-29 | A kind of water pump with injection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605944.1U CN208996889U (en) | 2018-09-29 | 2018-09-29 | A kind of water pump with injection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996889U true CN208996889U (en) | 2019-06-18 |
Family
ID=66803031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821605944.1U Active CN208996889U (en) | 2018-09-29 | 2018-09-29 | A kind of water pump with injection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996889U (en) |
-
2018
- 2018-09-29 CN CN201821605944.1U patent/CN208996889U/en active Active
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