CN206092491U - Double suction pump seal structure - Google Patents
Double suction pump seal structure Download PDFInfo
- Publication number
- CN206092491U CN206092491U CN201621177835.5U CN201621177835U CN206092491U CN 206092491 U CN206092491 U CN 206092491U CN 201621177835 U CN201621177835 U CN 201621177835U CN 206092491 U CN206092491 U CN 206092491U
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- sealing ring
- pump
- pump case
- impeller
- utility
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Abstract
The utility model discloses a double suction pump seal structure, including impeller, pump case and sealing ring, the sealing ring install on the impeller, be equipped with the one or more sealing washer between the inner wall of the outer face of cylinder of sealing ring and pump case. The utility model discloses an it is sealed to set up the twice sealing washer between sealing ring and the pump case, and the liquid that can control effectively from the high pressure chest of double entry pump toward the low pressure chamber of double entry pump leaks, and sealing performance is good, has reduced the abrasion of liquid to the pump case moreover. The utility model discloses an imported lip limit of sealing ring sets up for the end face obliquely of impeller, and this structure is favorable to the siltation to be discharged at sealing ring and leaf wheel clearance's impurity, and consequently, this structure not only is fit for the clear water medium and also more is fit for the application scope that the pump can be widened to the sewage medium.
Description
Technical field
This utility model is related to a kind of double suction pump packing structure.
Background technology
As shown in Figure 1, 2, in existing double suction pump packing structure, its sealing ring is arranged between impeller and pump case, sealing
The import lip of ring is straight flange, and sealing ring and pump case installation site are relatively fitted without sealing structure for general water medium
Close, for wastewater media or medium containing sand, its structure is unfavorable for discharging impurity, so as to be easily caused the mill of impeller and sealing ring
Damage, once wearing clearance becomes the efficiency of pump will be caused to reduce greatly, while the problems such as causing axial force unbalance, additionally, due to former double suction
Seal without sealing strip between pump seal ring and pump case, be easily caused pump case high pressure chest liquid and reveal toward pump case low pressure chamber, so as to shape
Into washing away, cause the wear-out failure of pump case.
The content of the invention
In order to solve above-mentioned technical problem, this utility model provides a kind of good airproof performance, is easy to deslagging and can improve double suction
The double suction pump packing structure of the efficiency of pump.
The technical solution adopted in the utility model is：A kind of double suction pump packing structure, including impeller, pump case and sealing ring,
Described sealing ring is arranged on impeller, and one or more sealing rings are provided between sealing ring external cylindrical surface and the inwall of pump case.
In above-mentioned double suction pump packing structure, described sealing ring external cylindrical surface is provided with two seal grooves, two sealings
A sealing ring is respectively equipped with groove.
In above-mentioned double suction pump packing structure, the import lip of described sealing ring sets relative to the end slope of impeller
Put.
Compared with prior art, the beneficial effects of the utility model are：
The sealing of two seals circle is set between sealing ring of the present utility model and pump case, can be efficiently controlled from double entry pump
High pressure chest toward double entry pump low pressure chamber liquid leakage, good seal performance, and reduce erosive wear of the liquid to pump case.This
The import lip of the sealing ring of utility model is arranged relative to the end slope of impeller, and structure is conducive to alluvial in sealing ring and leaf
Wheel gap impurity discharge, therefore, this structure not only be adapted to water medium be also more suitable for wastewater media can widen pump be suitable for
Scope.
Description of the drawings
Fig. 1 is the structural representation of existing double suction pump packing structure.
Fig. 2 is enlarged drawing at I in Fig. 1.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the enlarged drawing in Fig. 3 at II.
Specific embodiment
This utility model is further described below in conjunction with the accompanying drawings.
As shown in Figure 3,4, this utility model includes impeller 1, pump case 2 and sealing ring 3, and described sealing ring 3 is arranged on leaf
On wheel 1, two sealing rings 32 are provided between the external cylindrical surface of sealing ring 3 and the inwall of pump case 2.Described sealing ring 3 it is cylindrical
Cylinder is provided with two seal grooves, and two sealing rings 32 are respectively provided in two seal grooves.The import lip of described sealing ring 3
31 relative to impeller 1 end slope arrange.
Two seals circle 32 is arranged between sealing ring of the present utility model 3 and pump case 1 to seal, and can effectively be controlled from double
The high pressure chest of sucking pump toward the low pressure chamber of double entry pump liquid leakage, good seal performance, and reduce liquid washing away to pump case 2
Abrasion.The import lip 31 of sealing ring of the present utility model 3 is arranged relative to the end slope of impeller, and structure is conducive to depositing
The impurity of sealing ring and impeller clearance is discharged, therefore, this structure is not only adapted to water medium and is also more suitable for wastewater media to open up
The scope of application of wide pump.
Claims (3)
1. a kind of double suction pump packing structure, including impeller, pump case and sealing ring, is characterized in that：Described sealing ring is arranged on leaf
On wheel, one or more sealing rings are provided between sealing ring external cylindrical surface and the inwall of pump case.
2. double suction pump packing structure according to claim 1, is characterized in that：Described sealing ring external cylindrical surface is provided with two
Individual seal groove, in two seal grooves a sealing ring is respectively equipped with.
3. double suction pump packing structure according to claim 1 and 2, is characterized in that：The import lip phase of described sealing ring
For the end slope of impeller is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177835.5U CN206092491U (en) | 2016-10-27 | 2016-10-27 | Double suction pump seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177835.5U CN206092491U (en) | 2016-10-27 | 2016-10-27 | Double suction pump seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092491U true CN206092491U (en) | 2017-04-12 |
Family
ID=58486687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621177835.5U Active CN206092491U (en) | 2016-10-27 | 2016-10-27 | Double suction pump seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332126A (en) * | 2019-08-14 | 2019-10-15 | 成都西南水泵厂 | A kind of double entry pump with flushing isolation ring |
-
2016
- 2016-10-27 CN CN201621177835.5U patent/CN206092491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332126A (en) * | 2019-08-14 | 2019-10-15 | 成都西南水泵厂 | A kind of double entry pump with flushing isolation ring |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |