CN208348107U - The sealing system of submerged pump - Google Patents
The sealing system of submerged pump Download PDFInfo
- Publication number
- CN208348107U CN208348107U CN201820707421.1U CN201820707421U CN208348107U CN 208348107 U CN208348107 U CN 208348107U CN 201820707421 U CN201820707421 U CN 201820707421U CN 208348107 U CN208348107 U CN 208348107U
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- CN
- China
- Prior art keywords
- housing
- packing
- mechanical seal
- pump shaft
- ring
- 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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- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of sealing systems of submerged pump, including the pump shaft being located in housing, have first along its axially spaced-apart arrangement on pump shaft, two bearings, mechanical seal is provided between pump shaft and housing, pass through packing_seal between pump shaft and housing below the mechanical seal, mechanical seal and packing are respectively positioned on above bottom plate, the lubricating oil for not only avoiding mechanical seal directly leaks in medium, i.e. lubricating oil will leak to the region between packing and housing, prevent medium contaminated, and medium can not evaporate into working environment, guarantee the life security of staff in this way, ensure safely to convey volatile, toxic medium.
Description
Technical field
The utility model relates to submerged pump manufacturing technology field, specially a kind of sealing system of submerged pump.
Background technique
Some fields need pump have easy property and toxicity medium, such as titanium tetrachloride solution, generally by submerged pump come
Titanium tetrachloride solution is pumped, one of mechanical seal is only set on the pump shaft of existing submerged pump, for preventing volatile media from passing through
Gap between pump shaft and bearing block enters working environment, guarantees the personal safety of staff, still, when mechanical seal occurs
When the case where damage, on the one hand, the lubricating oil of mechanical seal will be leaked to directly in medium, cause a large amount of media dirty
Dye；On the other hand, medium will be evaporated into directly in working environment, threaten the life security of staff.
Utility model content
The purpose of the utility model is to provide the sealings that one kind can safely convey volatile, poisonous medium submerged pump
System.
To achieve the goals above, the technical solution of use are as follows: a kind of sealing system of submerged pump, including be located in housing
Pump shaft, have the first and second bearing along its axially spaced-apart arrangement on pump shaft, mechanical seal be provided between pump shaft and housing, institute
It states and is respectively positioned on above bottom plate between the pump shaft and housing below mechanical seal by packing_seal, mechanical seal and packing.
The technical effect of the utility model are as follows: the lubricating oil for not only avoiding mechanical seal directly leaks in medium,
I.e. lubricating oil will leak to the region between packing and housing, it is contaminated prevent medium, and medium can not evaporate into work
In environment, guarantee the life security of staff in this way, it is ensured that safely convey volatile, toxic medium.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model.
Specific embodiment
A kind of sealing system of submerged pump has on pump shaft 10 along its axially spaced-apart cloth including the pump shaft 10 being located in housing 1
The first and second bearing 11,12 set is provided with mechanical seal 20, the pump of 20 lower section of mechanical seal between pump shaft 10 and housing 1
It is sealed between axis 10 and housing 1 by packing 30, mechanical seal 20 and packing 30 are respectively positioned on 50 top of bottom plate.
In above scheme, mechanical seal 20 is provided between pump shaft 10 and housing 1, when the feelings damaged occurs in mechanical seal 20
When condition, due to being sealed between the pump shaft 10 and housing 1 of 20 lower section of mechanical seal by packing 30, on the one hand, avoid mechanical close
The lubricating oil of envelope 20 directly leaks in medium, i.e., lubricating oil will leak to the region between packing 30 and housing 1, prevent
Medium is contaminated；On the other hand, due to the sealing function of packing 30, medium can not be evaporated into working environment, in this way guarantee work
Make the life security of personnel.
It should be noted that being the region for accommodating medium to be conveyed below the bottom plate 50 of submerged pump, 10 lower end of pump shaft is connected with
Impeller be located at the lower section of bottom plate 50 and submerge medium to be conveyed completely.
The whole packing 30 is in loop overlapping shape, and packing 30 is located in stuffing-box 31 and packing 30 is set on pump shaft 10, fills out
Expect that ring flange and the bottom plate 50 of 31 lower end of letter are fixed, sealing ring 32 is set between 50 upper face of ring flange and bottom plate.Guarantee filler
Letter 31 can be effectively sealed against with 50 upper face of bottom plate.
1 lower end of housing of 31 periphery of stuffing-box is fixed on the upper face of bottom plate 50, on the ring flange of 1 bottom of housing
There is radially arranged drain access 40, drain access 40 is connected to 1 shell chamber of housing and external environment.When mechanical seal 20 damages
When, lubricating oil 23 will leak to 1 bottom of housing, the setting of drain access 40, on the one hand, staff is to submerged pump periodic maintenance
When, it directly opens drain access 40 and has checked non lubricant oil drippage, that is, can determine whether mechanical seal 20 damages, it is big generous
Maintenance of the staff to submerged pump；On the other hand, after damage occurs in mechanical seal 20, drain access 40 is convenient to
Clean out the lubricating oil 23 of leakage.
The packing 30 is graphite packing, and graphite packing is mainly the graphite by enhancings such as various reinforcing fibers, wires
Line is that raw material Seiko weaves, the feelings that leakage or medium volatilize upwards downwards of lubricating oil 23 of either mechanical seal 20
Condition, graphite packing provide excellent dynamic sealing effect.
As the specific arrangement of mechanical seal 20, the mechanical seal 20 includes the rotating ring 21 and stationary ring of opposite sliding setting
22, be equipped with sealing ring between the rotating ring 21 and pump shaft 10, the stationary ring 22 on housing 1 perpendicular to the installation that pump shaft 10 is axial
There is sealing ring between face, the region between dynamic and static ring 21,22 outer ring surfaces and housing 1 is full of lubricating oil 23.
The mechanical seal 20 and packing 30 are respectively positioned between the first and second bearing 11,12, keep the structure of submerged pump more tight
It gathers.
Claims (6)
1. a kind of sealing system of submerged pump, including the pump shaft (10) being located in housing (1), pump shaft has between its axial direction on (10)
Every the first and second bearing (11,12) of arrangement, it is characterised in that: be provided with mechanical seal between pump shaft (10) and housing (1)
(20), it is sealed between the pump shaft (10) and housing (1) below the mechanical seal (20) by packing (30), mechanical seal (20)
It is respectively positioned on above bottom plate (50) with packing (30).
2. the sealing system of submerged pump according to claim 1, it is characterised in that: the packing (30) is integrally in ring set
Shape, packing (30) is located in stuffing-box (31) and packing (30) is set on pump shaft (10), the ring flange of stuffing-box (31) lower end
It is fixed with bottom plate (50), sealing ring (32) are set between ring flange and bottom plate (50) upper face.
3. the sealing system of submerged pump according to claim 2, it is characterised in that: the housing of stuffing-box (31) periphery
(1) lower end is fixed on the upper face of bottom plate (50), has radially arranged drain access on the ring flange of housing (1) bottom
(40), drain access (40) connection housing (1) shell chamber and external environment.
4. the sealing system of submerged pump according to claim 1, it is characterised in that: the packing (30) is graphite packing.
5. the sealing system of submerged pump according to claim 1, it is characterised in that: the mechanical seal (20) includes opposite
The rotating ring (21) and stationary ring (22) for sliding setting are equipped with sealing ring, the stationary ring between the rotating ring (21) and pump shaft (10)
(22) perpendicular to there is sealing ring between the mounting surface of pump shaft (10) axial direction and on housing (1), dynamic and static ring (21,22) outer ring surface with
Region between housing (1) is full of lubricating oil (23).
6. the sealing system of submerged pump according to claim 1, it is characterised in that: the mechanical seal (20) and packing
(30) it is respectively positioned between the first and second bearing (11,12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820707421.1U CN208348107U (en) | 2018-05-11 | 2018-05-11 | The sealing system of submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820707421.1U CN208348107U (en) | 2018-05-11 | 2018-05-11 | The sealing system of submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348107U true CN208348107U (en) | 2019-01-08 |
Family
ID=64889144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820707421.1U Active CN208348107U (en) | 2018-05-11 | 2018-05-11 | The sealing system of submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443174A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | The sealing system of submerged pump |
-
2018
- 2018-05-11 CN CN201820707421.1U patent/CN208348107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443174A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | The sealing system of submerged pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |