CN209145954U - Sulfuric acid pump seal ring structure under a kind of liquid - Google Patents
Sulfuric acid pump seal ring structure under a kind of liquid Download PDFInfo
- Publication number
- CN209145954U CN209145954U CN201821899531.9U CN201821899531U CN209145954U CN 209145954 U CN209145954 U CN 209145954U CN 201821899531 U CN201821899531 U CN 201821899531U CN 209145954 U CN209145954 U CN 209145954U
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- CN
- China
- Prior art keywords
- sealing ring
- ring
- impeller
- pump
- model
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to sulfuric acid pump seal ring structures under a kind of liquid, belong to submerged pump field.The pump sealing structure of the utility model, including front pump cover, sealing ring, impeller；Sealing ring is annular element, and the side end face axial of sealing ring is inwardly provided with rectangular channel；The inlet of impeller is machined with and shape matches in sealing ring rectangular channel ring-shaped step；Sealing ring is fixed on the rear end of front pump cover, in the rectangular recess of the ring-shaped step insertion sealing ring at impeller eye, sealing ring is made to form labyrinth seal at impeller eye.The pump sealing structure of the utility model, increases reflux resistance, and the effective regurgitant volume for reducing medium suitably reduces volumetric loss in turn, improves efficiency.
Description
Technical field
The utility model relates to sulfuric acid pump seal ring structures under a kind of liquid, belong to submerged pump field.
Background technique
As science and technology constantly develops, the service life and efficiency to pump have higher requirement.Same hydraulic model, liquid
The improved efficiency means of lower pump are limited.It can only be subtracted as far as possible by the Optimal improvements of configuration aspects after impeller, pump housing waterpower determine
Few loss, properly increases efficiency.Efficiency of pump loss is divided into three aspects, hydraulic loss, volumetric loss, mechanical loss.Waterpower damage
It loses and mechanical loss is mainly related with model.Volumetric loss is mainly leakage and the balance hole of sealing ring, and balancing frame class is let out
Leakage.The sealing structure of sulfuric acid pump uses single port ring structure under liquid in traditional technology, as shown in Figure 1, between front pump cover and impeller only
There is one section of straight gap, resistance formed here is smaller, and the medium of outlet return is easy to pass through, and leakage loss is larger.
Utility model content
The small, leakage in the presence of reflux resistance that purpose of the utility model is to solve sulfuric acid pump seal ring structures under traditional liquid
It loses the problems such as big, and sulfuric acid pump sealing structure under a kind of liquid is provided, volumetric loss can be reduced to improve pump efficiency
Rate.
The purpose of this utility model is achieved through the following technical solutions.
Sulfuric acid pump sealing structure under a kind of liquid of the utility model, including front pump cover, sealing ring, impeller；
Sealing ring is annular element, and the side end face axial of sealing ring is inwardly provided with rectangular channel；
The inlet of impeller is machined with and shape matches in sealing ring rectangular channel ring-shaped step；
Sealing ring is fixed on the rear end of front pump cover, in the rectangular recess of the ring-shaped step insertion sealing ring at impeller eye,
Sealing ring is set to form labyrinth seal at impeller eye.
Working principle
When pump operating, impeller outlet position forms higher-pressure region, and inlet location is low-pressure area, and most of medium passes through pump discharge
Outflow, due to pressure difference, certain media is by the clearance backflow of sealing ring and impeller to impeller inlet, since this is practical
Novel seal ring structure and front shroud of impeller import position form labyrinth seal, and being effectively reduced reflux reduces volume damage
It loses.
Beneficial effect
The pump sealing structure of the utility model, increases reflux resistance, and the effective regurgitant volume for reducing medium is suitable in turn
When reducing volumetric loss, efficiency is improved.
Detailed description of the invention
Fig. 1 is sulfuric acid pump sealed structural schematic diagram under traditional liquid；
Fig. 2 is that the utility model pump uses sealed structural schematic diagram；
In figure, 1- front pump cover, 2- sealing ring, 3- impeller, 4- choma.
Specific embodiment
The content of the utility model is further described with reference to the accompanying drawings and examples:
Embodiment
Sulfuric acid pump sealing structure under a kind of liquid of the utility model, as shown in Fig. 2, including front pump cover 1, sealing ring 2, leaf
Wheel 3；
Sealing ring 1 is annular element, and the side end face axial of sealing ring 1 is inwardly provided with rectangular channel；
The inlet of impeller 3 is machined with and shape matches in 1 rectangular channel of sealing ring ring-shaped step；
Sealing ring 1 is fixed on the rear end of front pump cover 1, the rectangular recess of the ring-shaped step insertion sealing ring 1 of 3 inlet of impeller
It is interior, so that sealing ring 1 is formed labyrinth seal in 3 inlet of impeller.
Working principle
When pump operating, impeller outlet position forms higher-pressure region, and inlet location is low-pressure area, and most of medium passes through pump discharge
Outflow, due to pressure difference, certain media passes through the clearance backflow of sealing ring 2 and impeller 3 to impeller inlet, due to this reality
Labyrinth seal is formed with novel seal ring structure and front shroud of impeller import position, being effectively reduced reflux reduces volume damage
It loses.
Claims (1)
1. sulfuric acid pump seal ring structure under a kind of liquid, it is characterized in that: including front pump cover, sealing ring, impeller；
Sealing ring is annular element, and the side end face axial of sealing ring is inwardly provided with rectangular channel；
The inlet of impeller is machined with and shape matches in sealing ring rectangular channel ring-shaped step；
Sealing ring is fixed on the rear end of front pump cover, in the rectangular recess of the ring-shaped step insertion sealing ring at impeller eye, makes close
Seal ring forms labyrinth seal at impeller eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899531.9U CN209145954U (en) | 2018-11-16 | 2018-11-16 | Sulfuric acid pump seal ring structure under a kind of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899531.9U CN209145954U (en) | 2018-11-16 | 2018-11-16 | Sulfuric acid pump seal ring structure under a kind of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145954U true CN209145954U (en) | 2019-07-23 |
Family
ID=67286198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821899531.9U Expired - Fee Related CN209145954U (en) | 2018-11-16 | 2018-11-16 | Sulfuric acid pump seal ring structure under a kind of liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209145954U (en) |
-
2018
- 2018-11-16 CN CN201821899531.9U patent/CN209145954U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20211116 |