CN207975042U - A kind of pump housing with novel internal liner - Google Patents
A kind of pump housing with novel internal liner Download PDFInfo
- Publication number
- CN207975042U CN207975042U CN201820167774.7U CN201820167774U CN207975042U CN 207975042 U CN207975042 U CN 207975042U CN 201820167774 U CN201820167774 U CN 201820167774U CN 207975042 U CN207975042 U CN 207975042U
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- CN
- China
- Prior art keywords
- pump housing
- seal cartridge
- pump
- pump cover
- impeller
- 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.)
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Abstract
The utility model provides a kind of pump housing with novel internal liner, it includes the pump housing, pump cover is equipped with above the pump housing, main shaft is equipped between the pump housing and pump cover, which is characterized in that first stage impeller and secondary impeller are socketed on main shaft, first stage impeller and secondary impeller are socketed sealing ring, sealing ring diametrically divides the first seal cartridge of formation and the second seal cartridge, the first seal cartridge and the second seal cartridge lower part increase to form seam allowance relative to itself upper radius, and secondary impeller side is equipped with ring between grade；The utility model has the advantage of：Pump cover need only be lifted by crane and be opened in repair, lower bushing rotated out of along its pump housing locating slot, the upper bushing on pump cover directly takes out, then new bushing is packed into, process is simpler, and the repair time greatly shortens, and saves maintenance cost.
Description
Technical field
The utility model is related to the design method of internal liner more particularly to a kind of pump housings with novel internal liner.
Background technology
A kind of important form of the double entry pump as centrifugal pump, because it has the characteristics that lift is high, flow is big, in engineering
To extensive use.The impeller of this pump-type is actually composed of two back-to-back impellers, and the flow flowed out from impeller is converged
Enter in a spiral case.Double entry pump has the characteristics that the following：The single-suction (single-in let) impeller that it is equivalent to two same diameters works at the same time,
Same impeller outer diameter down-off, which can increase, to be twice；It is opened in pump case level, inspection and maintenance is convenient, meanwhile, double entry pump inlet and outlet
In the same direction and perpendicular to pump shaft, it is conducive to arrangement and the installation of pump and inlet and outlet pipes；The blade wheel structure of double entry pump is symmetrical, does not have
There are axial force, operation more steady.
Conventional double entry pump multistage internal liner is whole, when replacement, pump cover must be lifted by crane and be opened, then entire rotor is total
It is replaced again after being split at part, it is very inconvenient, and easily lead to and damage unnecessary parts because tearing rotor open.
Utility model content
The purpose of this utility model is to provide a kind of pump housing with novel internal liner, shortens the repair time, saves dimension
Accomplish this.
To achieve the goals above, the technical solution of the utility model is：
A kind of pump housing with novel internal liner, which is characterized in that it includes the pump housing, pump cover and main shaft, the pump
For lid positioned at the top of the pump housing, the main shaft is socketed a first stage impeller and several between the pump housing and pump cover on the main shaft
The front and rear of a secondary impeller, the first stage impeller and secondary impeller is socketed sealing ring, and the pump housing and pump cover pass through
Sealing ring is connect with first stage impeller and secondary impeller, and the sealing ring includes the first seal cartridge and the second seal cartridge, described
First seal cartridge and the second seal cartridge are that sealing ring diametrically is divided to be formed, first seal cartridge and second close
The radius of envelope bushing lower part increases to form seam allowance both with respect to from half radially outer edge of body, and the seam allowance is less than the first sealing
The middle part of bushing and the second seal cartridge is arranged, and the side of the secondary impeller is equipped with ring, the bottom of the pump cover and pump between grade
The top of body is coordinated by ring between grade and main shaft.
Technical solution described in the utility model need only lift by crane pump cover when repairing replacement and open, and lower bushing is pumped along it
Body locating slot rotates out of, the upper bushing on pump cover directly takes out, then new bushing is packed into, and process is simpler, when maintenance
Between greatly shorten, save maintenance cost.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the side sectional view of the utility model.
Reference numeral：
1 pump housing
2 pump covers
3 main shafts
4 first stage impellers
5 secondary impellers
6 sealing rings
7 first seal cartridges
8 second seal cartridges
9 seam allowances
Ring between 10 grades.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
A kind of pump housing with novel internal liner, which is characterized in that as depicted in figs. 1 and 2, it includes the pump housing 1, pump cover
2 and main shaft 3, the pump cover 2 be located at the top of the pump housing 1, the main shaft 3 is between the pump housing 1 and pump cover 2, on the main shaft 3
Several secondary impellers 5 for being socketed a first stage impeller 4 and being distributed outward successively along 4 side of first stage impeller, the first stage impeller 4
With the front and rear of secondary impeller 5 be socketed sealing ring 6, the pump housing 1 and pump cover 2 by sealing ring 6 and first stage impeller 4 and
Secondary impeller 5 connects, and the sealing ring 6 includes the first seal cartridge 7 and the second seal cartridge 8,7 He of the first seal cartridge
Second seal cartridge 8 is that sealing ring 6 diametrically divides formation, and the first seal cartridge 7 and the second seal cartridge 8 are along level side
To splitting, the radius of 7 and second seal cartridge of the first seal cartridge, 8 lower part is both with respect to half radially outer edge from body
Increase forms seam allowance 9, and the seam allowance 9 is arranged less than the middle part of the first seal cartridge 7 and the second seal cartridge 8, the seam allowance 9
Bottom mill is fillet, avoids sliding groove collision when rotation and in the pump housing 1 and pump cover 2 from generating damage, when the first seal cartridge 7
It is rotated up to seam allowance 9 with the second seal cartridge 8 and resists pump cover 2, pump cover 2 stops its rotation, will not excessively rotate, the secondary
Ring 10, the bottom of the pump cover 2 and the top of the pump housing 1 are coordinated by ring between grade 10 and main shaft 3 between the side of impeller 5 is equipped with grade.
It is opened when it is implemented, pump cover 2 need only be lifted by crane, the lining in the first seal cartridge 7 and the second seal cartridge 8 on the lower
Set is rotated out of along its 1 locating slot of pump housing, and the upper bushing on pump cover 2 directly takes out, then new bushing is packed into, due to
Sliding slot in the pump housing 1 is larger, can accommodate seam allowance 9, and the sliding slot of pump cover 2 is smaller, and the first sealing lining can be prevented when being collided with seam allowance 9
Set 7 and the second seal cartridge 8 further rotate, and close pump cover 2 positioning can be realized once again, process is simpler, the repair time
It greatly shortens, saves maintenance cost.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (1)
1. a kind of pump housing with novel internal liner, which is characterized in that it includes the pump housing, pump cover and main shaft, the pump cover
Positioned at the top of the pump housing, the main shaft between the pump housing and pump cover, be socketed on the main shaft first stage impeller and several
The front and rear of secondary impeller, the first stage impeller and secondary impeller is socketed sealing ring, and the pump housing and pump cover pass through close
Seal ring is connect with first stage impeller and secondary impeller, and the sealing ring includes the first seal cartridge and the second seal cartridge, and described the
One seal cartridge and the second seal cartridge are that sealing ring diametrically is divided to be formed, first seal cartridge and the second sealing
The radius of bushing lower part increases to form seam allowance both with respect to from half radially outer edge of body, and the seam allowance is less than the first sealing lining
The middle part of set and the second seal cartridge is arranged, and the side of the secondary impeller is equipped with ring, the bottom of the pump cover and the pump housing between grade
Top pass through ring between grade and main shaft and coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167774.7U CN207975042U (en) | 2018-01-31 | 2018-01-31 | A kind of pump housing with novel internal liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167774.7U CN207975042U (en) | 2018-01-31 | 2018-01-31 | A kind of pump housing with novel internal liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975042U true CN207975042U (en) | 2018-10-16 |
Family
ID=63766452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820167774.7U Active CN207975042U (en) | 2018-01-31 | 2018-01-31 | A kind of pump housing with novel internal liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975042U (en) |
-
2018
- 2018-01-31 CN CN201820167774.7U patent/CN207975042U/en active Active
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