CN207583701U - A kind of low temperature immersed pump goes out liquid connecting pipe structure - Google Patents
A kind of low temperature immersed pump goes out liquid connecting pipe structure Download PDFInfo
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- CN207583701U CN207583701U CN201721589244.3U CN201721589244U CN207583701U CN 207583701 U CN207583701 U CN 207583701U CN 201721589244 U CN201721589244 U CN 201721589244U CN 207583701 U CN207583701 U CN 207583701U
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- contact surface
- out liquid
- runner
- low temperature
- connecting pipe
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Abstract
A kind of low temperature immersed pump goes out liquid connecting pipe structure, which is characterized in that the centrifugal pump has upper shell and lower housing, and the upper shell includes the first downward contact surface, and the lower housing includes the second upward contact surface；There are at least three circumferentially uniformly distributed hollow circuit cylinder runners, the runner both ends seal respectively is fixed in first, second contact surface, has sealant between the runner end face and the contact surface between the upper-lower casing；First contact surface is equipped with liquid outlet channel with the runner junction, and second contact surface is equipped with feed pathway with the runner junction.The utility model have the advantages that it is simple in structure, be convenient to process and mount, sealing effect is good, reliable.
Description
Technical field
The utility model is related to cryogenic media conveying device fields more particularly to a kind of low temperature immersed pump to go out liquid connecting tube knot
Structure.
Background technology
At present, in cryogenic media transportation art, low temperature immersed pump is widely used, and this pump necessary electromotor is direct
It is immersed in cryogenic media, is directly directly cooled down by cryogenic media.In the course of work of immersed pump, in motor medium with turn
The rotation of son can not arrheaed, if the medium channel being not specified by, the unordered flowing of medium can generate multiple sides in electric machine casing
To stress, while local quality variation also results in the changes of inertial states caused by media flow.This stress and inertia
Power influences effective operation of the impeller of motor.It is general using set in motor side flow pipe make interior media olderly flowage come
Avoid the generation of this case.
A kind of new type low temperature immersed motor as described in application No. is 201320864764.6.It discloses its immersed motors
Sectional view, in the sectional view, by between motor top, bottom shell body be inserted into a cylindrical tube be used as flow pipe progress
The reflux of medium is oriented to.This design structure is complex, needs the jack at top, bottom and has good concentricity and circularity.Together
When, insertion portion radial sidewalls, cylinder tube end, cylinder pore are required to encapsulation process.Difficulty of processing is big, intractability
Height, operational reliability are low.And needed in the pump housing in the case that rotor and axis are installed, can not by the casting and forming of one come
Housing of the production with runner.
In conclusion how to produce it is a kind of it is simple in structure, be convenient to process and mount, the multistage that sealing effect is good, reliable
Centrifugal pump casing transition runner structure is problem to be solved in the utility model.
Utility model content
The purpose of this utility model is to provide it is a kind of it is simple in structure, be convenient to process and mount, sealing effect is good, reliable
Multistage centrifugal pump case transition runner structure.
To realize purpose of utility model, the utility model employs following technical solution：A kind of low temperature immersed pump goes out liquid company
Joint pipe structure, including upper shell and lower housing, the upper shell includes the first downward contact surface, and the lower housing includes upward
The second contact surface；
There are at least three circumferentially uniformly distributed hollow circuit cylinder runners, the runner both ends between the upper shell and lower housing
Sealing is fixed in first, second contact surface respectively, has sealant between the runner end face and the contact surface；
First contact surface is equipped with liquid outlet channel with the runner junction, and second contact surface connects with the runner
It meets place and is equipped with feed pathway.
The installation for carrying out runner is contacted with the face of first, second contact surface by the runner both ends so that need
The position of sealing only there are two contact surface, increase can equipment reliability.By the sealant to runner end face and contact surface
It is connected and sealed, each sealant is relatively independent, does not need to and its accurately concentricity is required with cylindricity so that production adds
Work is easy.By going out liquid, feed pathway described in runner connection so that the pump housing has liquid outlet channel-runner-feed pathway
Medium circulation path so that medium circulation is orderly in pump, and pump internal stress variation is orderly, avoids going out for discrete unreliable operating mode
It is existing.
Preferably, the sealant is welding layer.
Welding treats that connecting component is connected as an entirety by the process of metal melt-condensation by two, is generated by welding
The sealant be provided simultaneously with fastness and leakproofness, increase job stability and the service life of product.
Preferably, the sealant is aluminium alloy layer.
It can be melted by placing the aluminum alloy sheet of annular between the runner end face and contact surface by electric resistance welding
Mode is welded.Aluminium alloy can pass through only melting aluminum as steel of its fusing point of welding medium less than the pump housing in welding
The temperature of the non-fusible pump housing of alloy is welded.Ensure to ensure that pump housing overall dimensions and force structure not while welding effect
It changes, maintains its working effect.Aluminum alloy surface can generate oxide layer simultaneously, and character can be kept in cryogenic media
Stablize, along with its lighter density and higher intensity, it is ensured that reduced while working life to pump housing outer cover quality
Increase, reduce energy loss.
Preferably, the runner end face is in low inside and high outside cone angle.
There is widened angle from inside to outside behind the runner end face and contact surface pre-installation in the cone angle.In welding
The tensile stress generated between solidified aluminum and end face, contact surface annular increase from inside to outside so that produced when being not in general welding
Raw local deformation especially protects runner inner surface indeformable, ensures that the circulation path interface of pump in-vivo medium is smooth, avoids
Turbulent flow, sinuous flow cause stress structure to change caused by rough surface.
Preferably, the runner end face is shiny surface.
Shiny surface can be respectively indeformable to uniform force after welding.
Preferably, it is described go out liquid, circular groove is equipped with around feed pathway.
The circular groove can bury aluminium alloy electrode, facilitate runner between the contact surface is installed to after welding rod is placed.
Preferably, the runner end face has annular knurl slot.
Preferably, it is described go out liquid, annular knurl slot is equipped with around feed pathway.
The annular knurl slot, in close structure is gradually become, is in capillary structure at minimum under the action of the cone angle.In aluminium
After alloy melting, aluminium water can fill completely entire welding region under the siphonage of capillary structure, both ensure that the effective of welding
Property improves the mechanical strength of runner further through the increased forced area of annular knurl slot.
Preferably, the upper shell has arc groove with the liquid outlet channel junction.
Preferably, the lower housing has arc groove with the feed pathway junction.
By setting the arc groove that can must install the runner closer to axle center on housing, turn entirely pumped is reduced
Dynamic inertia, optimizes mechanical structure.Meanwhile arc groove can provide the effect of guide and limit in the pre-installation before runner welding.
The beneficial effects of the utility model are：By shell transition runner structure integrated after welding, simplify existing
The flow passage structure for being inserted into, being clamped in technology, reduces number of parts, positioning surface and seal face, leads to while cost is reduced
Cross seal face, the reduction of positioning surface increases the reliability of the pump housing.It is being flowed by the cone angle of flow passage ends, surface design
Entirely containing interface while welding fabrication in the welding process in road, pump housing deformation caused by will not welding.Meanwhile in application end
When face has the surface of annular knurl slot, the capillary structure siphonage between annular knurl slot causes can have when welding aluminium water flowing
Effect ground will not be spilled over to runner with inside contact surface, ensure that welding table full of the gap between runner end face and contact surface
The reliability of face quality.The utility model have the advantages that it is simple in structure, be convenient to process and mount, sealing effect is good, reliable.
Description of the drawings
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the runner end face detailed view of the utility model；
Items are respectively in figure：1 upper shell, 11 first contact surfaces, 12 liquid outlet channels, 13 arc grooves, 2 lower housings, 21
Two contact surfaces, 22 feed pathways, 3 runners, 31 runner end faces, 32 cone angles, 33 circular grooves, 34 annular knurl slots, 4 sealants.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing：
Embodiment one
As shown in Figure 1, 2, a kind of low temperature immersed pump goes out liquid connecting pipe structure, including upper shell 1 and lower housing 2, upper shell 1
Including the first downward contact surface 11, lower housing 2 includes the second upward contact surface 21；Have between upper shell 1 and lower housing 2
Three circumferentially uniformly distributed hollow circuit cylinder runners 3,3 both ends of runner seal respectively is fixed in first, second contact surface 21, runner end face
There is sealant 4 between 31 and contact surface 11,21；First contact surface 11 is equipped with liquid outlet channel 12, the second contact with 3 junction of runner
Face 21 is equipped with feed pathway 22 with 3 junction of runner.
In the present embodiment, sealant 4 is welding layer.
In the present embodiment, sealant 4 is aluminium alloy layer.
In the present embodiment, runner end face 31 is in low inside and high outside cone angle 32.
In the present embodiment, go out liquid, circular groove 33 is equipped with around feed pathway 12,22.
In the present embodiment, 3 end face of runner has annular knurl slot 34.
In the present embodiment, go out liquid, annular knurl slot 34 is equipped with around feed pathway 12,22.
In the present embodiment, upper shell 1 has arc groove 13 with 12 junction of liquid outlet channel.
In the present embodiment, lower housing 2 has arc groove 13 with 22 junction of feed pathway.
In welded and installed, aluminium alloy electrode or aluminium alloy weld tabs are placed in circular groove 23, then runner 3 is put into properly
Position, the end of runner 3 are contacted with arc groove 13, aluminium alloy electrode, piece be located at liquid, feed pathway 12,22 and runner 3 it
Between.In aluminium alloy electrode, piece both ends connection electrode, the welding rod, piece are melted by the form of electric resistance welding, then formed and caused after solidifying
Close sealant 4.The sealing integrally connected between the runner 3 and upper and lower casing 1,2 is completed after the completion of welding.It is in
Ensure pump housing entirety force structure it is uniform the considerations of, can more runners 3 be carried out at the same time welding.
Embodiment two
Technical solution described in embodiment two is approximate with embodiment one, the difference is that：
In the present embodiment, runner end face 31 is shiny surface.
As a further preference, circular groove 33 is embedded in the present embodiment is cased with metal labyrinth seal, ensures shiny surface postwelding
Fine gap that may be present will not leak.
Above example is only described the preferred embodiment of the utility model, not to the structure of the utility model
Think and range is defined, without departing from the design concept of the present utility model, ordinary people in the field is new to this practicality
The all variations and modifications that the technical solution of type is made each fall within the scope of protection of the utility model, the utility model request
The technology contents of protection have all been recorded in detail in the claims.
Claims (10)
1. a kind of low temperature immersed pump goes out liquid connecting pipe structure, which is characterized in that including upper shell（1）With lower housing（2）, it is described on
Housing（1）Including the first downward contact surface（11）, the lower housing（2）Including the second upward contact surface（21）；
The upper shell（1）And lower housing（2）Between have at least three circumferentially uniformly distributed hollow circuit cylinder runners（3）, the stream
Road（3）Both ends seal respectively is fixed in first, second contact surface（21）, the runner end face（31）With the contact surface
（11、21）Between have sealant（4）；
First contact surface（11）With the runner（3）Junction is equipped with liquid outlet channel（12）, second contact surface（21）
With the runner（3）Junction is equipped with feed pathway（22）.
2. a kind of low temperature immersed pump according to claim 1 goes out liquid connecting pipe structure, which is characterized in that the sealant
（4）For welding layer.
3. a kind of low temperature immersed pump according to claim 2 goes out liquid connecting pipe structure, which is characterized in that the sealant
（4）For aluminium alloy layer.
4. a kind of low temperature immersed pump according to claim 3 goes out liquid connecting pipe structure, which is characterized in that the runner end face
（31）In low inside and high outside cone angle（32）.
5. a kind of low temperature immersed pump according to claim 4 goes out liquid connecting pipe structure, which is characterized in that the runner end face
（31）For shiny surface.
6. a kind of low temperature immersed pump according to claim 5 goes out liquid connecting pipe structure, which is characterized in that it is described go out liquid, into
Liquid channel（12、22）Surrounding is equipped with circular groove（33）.
7. a kind of low temperature immersed pump according to claim 4 goes out liquid connecting pipe structure, which is characterized in that the runner（3）
End face has annular knurl slot（34）.
8. a kind of low temperature immersed pump according to claim 7 goes out liquid connecting pipe structure, which is characterized in that it is described go out liquid, into
Liquid channel（12、22）Surrounding is equipped with annular knurl slot（34）.
9. a kind of low temperature immersed pump according to claim 1 goes out liquid connecting pipe structure, which is characterized in that the upper shell
（1）With the liquid outlet channel（12）Junction has arc groove（13）.
10. a kind of low temperature immersed pump according to claim 9 goes out liquid connecting pipe structure, which is characterized in that the lower housing
（2）With the feed pathway（22）Junction has arc groove（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589244.3U CN207583701U (en) | 2017-11-24 | 2017-11-24 | A kind of low temperature immersed pump goes out liquid connecting pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589244.3U CN207583701U (en) | 2017-11-24 | 2017-11-24 | A kind of low temperature immersed pump goes out liquid connecting pipe structure |
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| Publication Number | Publication Date |
|---|---|
| CN207583701U true CN207583701U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721589244.3U Active CN207583701U (en) | 2017-11-24 | 2017-11-24 | A kind of low temperature immersed pump goes out liquid connecting pipe structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795524A (en) * | 2017-11-24 | 2018-03-13 | 湖州三井低温设备有限公司 | A kind of low temperature immersed pump goes out liquid connecting pipe structure and its production method |
-
2017
- 2017-11-24 CN CN201721589244.3U patent/CN207583701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795524A (en) * | 2017-11-24 | 2018-03-13 | 湖州三井低温设备有限公司 | A kind of low temperature immersed pump goes out liquid connecting pipe structure and its production method |
| CN107795524B (en) * | 2017-11-24 | 2023-06-30 | 湖州三井低温设备有限公司 | Liquid outlet connecting pipe structure of low-temperature immersed pump and production method thereof |
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