CN209261858U - A kind of downdraft immersible pump - Google Patents
A kind of downdraft immersible pump Download PDFInfo
- Publication number
- CN209261858U CN209261858U CN201821380962.4U CN201821380962U CN209261858U CN 209261858 U CN209261858 U CN 209261858U CN 201821380962 U CN201821380962 U CN 201821380962U CN 209261858 U CN209261858 U CN 209261858U
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- China
- Prior art keywords
- motor
- thrust bearing
- pump housing
- thrust
- downdraft
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Abstract
The utility model belongs to pumping plant field, it is related to submersible pump unit, especially a kind of downdraft immersible pump, upper end is equipped with motor in the pump housing shell, the output end of the motor, which extends downwardly, is equipped with multi-stage impeller, it is characterized by: the pump housing upper shell is provided with water outlet, the lower end of the pump housing shell is provided with suction inlet, thrust bearing room is provided between the motor and impeller, two through-holes are produced in the side wall of the thrust bearing room, a sealing bolt is movably installed in the two through hole respectively, an operation window is produced in the pump housing side wall of outer shell of the sealing bolt side, the operation window is equipped with a sealing cover；The thrust bearing room is connected with suction inlet, includes thrust disc and thrust bearing group in the thrust bearing room, the thrust disc and thrust bearing group and the output shaft of motor are mutually installed.
Description
Technical field
The utility model belongs to pumping plant field, is related to submersible pump unit, especially a kind of downdraft immersible pump.
Background technique
Immersible pump is usual means in water lift engineering at present, is widely used in the well of river and lake, pond or big hole diameter
In mouthful.Existing submersible pump structure generally comprises motor, and the output end of motor is equipped with multi-stage impeller, and multi-stage impeller is in upper, motor
Under.
The immersible pump of above structure when in use, due to the limitation of structure, suction inlet be generally located on multi-stage impeller and
In the middle part of the pump housing between motor, therefore, suction head is extremely limited, lower for the drainage position of some requirements
Water intake well, applicability are poor.
To solve the above problems, some production firms produce downdraft immersible pump, such as Patent No. 2016207323198
Patent, this downdraft immersible pump to solve above-mentioned deficiency, but actually using the location swap of impeller and motor
There is also certain deficiencies in journey, use inverted structure to change the runner form of traditional immersible pump, are easy to appear runner
Unsmooth problem, in addition, in the open environments such as river, lake, being easy to appear motor temperature since its motor position is moved up
Excessively high the problem of burning out, in addition to this, enclosed structure is there is also being not easy to check, the deficiency of maintenance.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of structurally reasonable, lower suction structure, runner
It is unobstructed, it is easy to a kind of downdraft immersible pump overhauled.
The utility model is achieved through the following technical solutions:
A kind of downdraft immersible pump, including pump housing shell, upper end is equipped with motor in the pump housing shell, the motor it is defeated
Outlet, which extends downwardly, is equipped with multi-stage impeller, it is characterised in that: the pump housing upper shell is provided with water outlet, the pump housing shell
Lower end be provided with suction inlet, thrust bearing room is provided between the motor and impeller, system in the side wall of the thrust bearing room
Two through-holes out are movably installed with a sealing bolt in the two through hole, positioned at the pump housing shell of the sealing bolt side respectively
An operation window is produced in side wall, which is equipped with a sealing cover.
Moreover, include thrust disc and thrust bearing group in the thrust bearing room, the thrust disc and thrust bearing group with
The output shaft of motor is mutually installed.
Moreover, form honeycomb duct between the end face outside of the motor and the inner wall of pump housing shell, the honeycomb duct it is upper
End is connected with water outlet, and the lower end of the honeycomb duct is connected through thrust bearing outside.
The advantages and positive effects of the utility model are as follows:
In the utility model, structure of the motor in upper multi-stage impeller under can solve the limitation of suction head, inhale it
Enough on the lower, improve its applicability in entry position；Thrust bearing room for reducing motor for submerged pump axial force pair pressure bar stabilization
Property caused by influence, prolong the service life, operation window cooperation sealing cover activity installation can be opened and closed, such as
It in transportational process, is unable in the state of water-filling transport, sealing cover and sealing can be dismantled after downdraft immersible pump transports destination to
Bolt carries out air guide and water-filling operation to open through-hole, easy to operate, in addition, the operation window can also play maintenance observation
Effect；Thrust bearing chamber interior is connected to suction inlet, and for side-wall outer side by being connected to honeycomb duct, honeycomb duct flows through the outer of motor
Side end face forms heat exchange, can take away the heat that motor generates, be not necessarily to other cooling devices, motor overheating is effectively prevent to damage
It is bad, extend the service life of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It elaborates below by embodiment to the utility model, the embodiment is illustrative instead of limiting
, protection scope of this utility model cannot be limited by this.
A kind of downdraft immersible pump, including pump housing shell 15, upper end is equipped with motor 3 in the pump housing shell, the motor
Output end 4 extend downwardly multi-stage impeller 8 be installed, the innovation of the utility model is, the pump housing upper shell is provided with
Water outlet, the lower end of the pump housing shell are provided with suction inlet, thrust bearing room 11 are provided between the motor and impeller, should be only
Two through-holes are produced in the side wall of thrust bearing room, are movably installed with a sealing bolt 5 in the two through hole respectively, are located at the sealing
An operation window 6 is produced in the pump housing side wall of outer shell of bolt side, which is equipped with a sealing cover 7.
In the present embodiment, pump housing upper shell portion is equipped with water outlet connector 16, and water outlet connector is provided with water outlet 1.
In the present embodiment, the position that the water outlet connector is located at water outlet side is provided with cable port 2.
In the present embodiment, the described pump housing shell lower end is equipped with sucking water inlet joint 10, which is provided with
Filter screen 9 is installed in suction inlet, suction inlet position.
It include thrust disc and thrust bearing group, the thrust disc 13 and thrust bearing in thrust bearing room in the present embodiment
Group 12 and the output shaft of motor are mutually installed.
In the present embodiment, honeycomb duct 14 is formed between the end face outside of the motor and the inner wall of pump housing shell, it is described to lead
The upper end of runner is connected with water outlet, and the lower end of the honeycomb duct is connected through thrust bearing outside.
The use process of the utility model is:
In the utility model, operated by motor, output shaft drive multi-stage impeller rotation so that external water source by
Suction inlet enters sucking water inlet joint, so that thrust disc and thrust bearing group form water lubrication, water is imported into honeycomb duct later, flows through
Heat exchange is carried out on the outside of motor, is acted on behalf of the heat of motor generation, is finally exported through water outlet.
1. in the utility model, structure of the motor in upper multi-stage impeller under can solve the limitation of suction head, make its
Enough on the lower, improve its applicability in suction inlet position；Thrust bearing room influences for reducing the axial force of motor driving shaft, extends
Service life, operation window cooperation sealing cover activity installation can be opened and closed, such as under cryogenic in transportational process, Bu Nengchong
In the state of water transport, sealing cover and sealing bolt can be dismantled after downdraft immersible pump transports destination to, to open logical
Hole carries out air guide and water-filling operation, easy to operate, in addition, the operation window can also play the role of maintenance observation.
2. in the utility model, water outlet connector and suction structure are respectively used to setting water outlet and suction inlet, detachably more
It changes, water outlet connector is provided with cable port, and the cable being connected to motor in cable port for installing guidance, connection is orderly, convenient for drawing
Lead maintenance.
3. in the utility model, thrust bearing chamber interior is connected to suction inlet, side-wall outer side by being connected to honeycomb duct,
Honeycomb duct flows through the end face outside of motor, forms heat exchange, can take away the heat that motor generates, be not necessarily to other cooling devices,
It effectively prevent motor overheating to damage, extends the service life of motor.
Claims (3)
1. a kind of downdraft immersible pump, including pump housing shell, upper end is equipped with motor in the pump housing shell, the output of the motor
End, which extends downwardly, is equipped with multi-stage impeller, it is characterised in that: the pump housing upper shell is provided with water outlet, the pump housing shell
Lower end is provided with suction inlet, and thrust bearing room is provided between the motor and impeller, produces in the side wall of the thrust bearing room
Two through-holes are movably installed with a sealing bolt in the two through hole, positioned at the pump housing shell side of the sealing bolt side respectively
An operation window is produced in wall, which is equipped with a sealing cover.
2. a kind of downdraft immersible pump according to claim 1, it is characterised in that: include thrust in the thrust bearing room
Disk and thrust bearing group, the thrust disc and thrust bearing group and the output shaft of motor are mutually installed.
3. a kind of downdraft immersible pump according to claim 2, it is characterised in that: the end face outside and the pump housing of the motor
Honeycomb duct is formed between the inner wall of shell, the upper end of the honeycomb duct is connected with water outlet, and the lower end of the honeycomb duct is through thrust
It is connected on the outside of bearing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380962.4U CN209261858U (en) | 2018-08-27 | 2018-08-27 | A kind of downdraft immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380962.4U CN209261858U (en) | 2018-08-27 | 2018-08-27 | A kind of downdraft immersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261858U true CN209261858U (en) | 2019-08-16 |
Family
ID=67552395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821380962.4U Active CN209261858U (en) | 2018-08-27 | 2018-08-27 | A kind of downdraft immersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209261858U (en) |
-
2018
- 2018-08-27 CN CN201821380962.4U patent/CN209261858U/en active Active
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