CN206000773U - Centrifugal pump seal structure - Google Patents
Centrifugal pump seal structure Download PDFInfo
- Publication number
- CN206000773U CN206000773U CN201621027900.6U CN201621027900U CN206000773U CN 206000773 U CN206000773 U CN 206000773U CN 201621027900 U CN201621027900 U CN 201621027900U CN 206000773 U CN206000773 U CN 206000773U
- Authority
- CN
- China
- Prior art keywords
- seal
- pump
- packing
- impeller
- centrifugal pump
- 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 discloses a kind of centrifugal pump seal structure, a kind of without cooling water, be suitable for the operating of sky pump, in operation process leak free centrifugal pump seal structure, employed technical scheme comprise that：Centrifugal pump seal structure, attached leaf room is set between pump cover and impeller, the attached leaf interior attached impeller of setting, centrifugal pump is when running well, attached impeller and impeller are with pump shaft synchronous rotary, attached impeller is little with attached leaf room fit clearance, effectively the liquid in the pump housing is maintained at attached leaf indoor, it is to avoid the liquid leakage in the pump housing.It is packing_seal outside axle sleeve, packing_seal is the combined packing_seal of no flushing water, it is to avoid in the pump housing, penetrate into flushing water, and does not result in packing_seal to damage, improve service life.The outside setting liquid of packing_seal collects ring, and liquid collects ring connected drainage pipe, and when centrifugal pump is out of service, the liquid in the pump housing is discharged in packing_seal by discharging tube, is easy to collect and reclaims.Centrifugal pump seal architecture is simple, and easy to maintenance, operating cost is low.
Description
Technical field
This utility model is related to a kind of centrifugal pump.
Background technology
Spent acid during chemical industry cellulose produces contains concentrated sulphuric acid and concentrated nitric acid, contains more fiber, sand in spent acid simultaneously
The impurity such as grain, and often the pump phenomenon that fans the air in working condition, from mechanical seal structure centrifugal pump and leak free magnetic force
Centrifugal pump easily causes mechanical seal and magnetic drum damages and wants it is impossible to meet production, safety, quality, environmental protection and use cost etc.
Ask.And from the packing_seal mode with flushing water centrifugal pump, flushing water by between packing and axle sleeve gap enter
In the pump housing, flushing water is caused to penetrate into spent acid and increase the treating capacity of spent acid.Therefore, one kind need to be researched and developed without cooling water,
Can empty pump operating for a long time, realize that No leakage, fault rate be low, long service life centrifugal pump seal knot in operation process
Structure.
Utility model content
Technical problem to be solved in the utility model be provide a kind of without cooling water, be adapted to the operating of sky pump,
Leak free centrifugal pump seal structure in operation process.
This utility model solves its technical problem and be employed technical scheme comprise that：Centrifugal pump seal structure, including front pump cover,
Impeller, pump cover and pump shaft, pump shaft passes through pump cover, and the termination of pump shaft connects described impeller, pump cover side by impeller nut
Pump shaft the sheathed axle sleeve in outside；Arrange attached leaf room, the attached leaf interior attached impeller of setting, and attached impeller between pump cover and impeller to fix
It is installed on pump shaft；It is packing_seal outside axle sleeve, described packing_seal is the combined packing_seal of no flushing water, and packing is close
The outside setting liquid of envelope collects ring, and liquid collects ring connected drainage pipe.
It is further：Stuffing box is fixedly mounted, stuffing box is closed by gland, and described disk outside described axle sleeve
Root sealing is connected with stuffing box.
It is further：Described liquid collects the lowest part that ring is arranged at packing_seal.
It is further：The specification of described discharging tube is DN25.
Centrifugal pump when running well, attached impeller and impeller with pump shaft synchronous rotary, due to attached impeller and the cooperation of attached leaf room
Gap is little, effectively by the liquid in the pump housing, such as acid solution, is maintained at attached leaf indoor, it is to avoid the liquid leakage in the pump housing, realize from
The zero leakage of heart pump running.Centrifugal pump is in running, if packing_seal adds flushing water, flushing water will from packing with
Gap between axle sleeve flows into attached leaf room, hence into the liquid in the pump housing, causing in the pump housing, such as acid solution, penetrates into flushing water
And increase spent acid treating capacity.This utility model is using the combined packing_seal of no flushing water, it is to avoid penetrate into flushing water in the pump housing
Problem, accordingly, due to no-cooling-water, the temperature of packing_seal can accordingly raise, so centrifugal pump seal architecture is in no
Volatile medium, such as spent acid, conveying.
When centrifugal pump is out of service, in the body of centrifugal pump connecting tube with the pump housing in liquid, such as acid solution, from attached leaf room
Flow in packing_seal, then circulation is collected by the liquid of packing_seal and enter discharging tube, discharging tube can enter acid solution in geosyncline
Collect and recycle.
During centrifugal pump sky pump operating, packing_seal, without cooling water, does not only have that flushing water penetrates in the pump housing,
And packing_seal will be caused to damage because of no-cooling-water, improve the service life of centrifugal pump, be particularly suited for the defeated of spent acid
Send.
The beneficial effects of the utility model are：Centrifugal pump seal architecture is simple, easy to maintenance, no lets out in running
Leakage.In running, no-cooling-water also can normally run.No matter in pumped (conveying) medium, how many fiber and grains of sand impurity all can be normal
Run, have the advantages that long service life, fault rate be low, operating cost is low, be particularly suited for the medium of non-explosive, for example useless
Acid, conveying.
Brief description
Fig. 1 is the schematic diagram of this utility model centrifugal pump seal structure.
In figure parts, position and numbering：Front pump cover 1, feed tube 2, impeller nut 3, impeller 4, attached leaf room 5, attached impeller
6th, pump cover 7, stuffing box 8, gland 9, pump shaft 10, axle sleeve 11, liquid are collected ring 12, discharging tube 13, packing_seal 14, are sucked
Mouth 15.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, this utility model centrifugal pump seal structure, including front pump cover 1, impeller 4, pump cover 7 and pump shaft 10, pump
Axle 10 passes through pump cover 7, and the termination of pump shaft 10 connects described impeller 4 by impeller nut 3, and that is, the pump shaft 10 left side termination of Fig. 1 connects
Connect impeller 4.The outside of the pump shaft 10 of pump cover 7 side is axle sleeve 11.Front pump cover 1 is used for connecting feed tube 2, and impeller 4 is close
Feed tube 2 side forms suction inlet 15.On rear side of impeller 4, attached leaf room 5, setting in attached leaf room 5 are set between impeller 4 and pump cover 7
Attached impeller 6, attached impeller 6 is fixedly installed on pump shaft 10., when running well, attached impeller 6 and impeller 4 are same with pump shaft 10 for centrifugal pump
Step rotation, attached impeller 6 is little with attached leaf room 5 fit clearance, effectively by the liquid in the pump housing, such as acid solution, is maintained at attached leaf room 5
Interior, it is to avoid the liquid leakage in the pump housing, realize the zero leakage of centrifugal pump running.
The outside of the pump shaft 10 of pump cover 7 side is axle sleeve 11, and axle sleeve 11 outside is packing_seal 14, and described packing is close
Envelope 14 is the combined packing_seal of no flushing water.Axle sleeve 11 outside fixed installation stuffing box 8, stuffing box 8 passes through gland 9
Closing, described packing_seal 14 is connected with stuffing box 8.
, in running, if packing_seal 14 plus flushing water, flushing water will be between packing and pump shaft 10 for centrifugal pump
Gap flow into attached leaf room 5, and then enter in the pump housing, cause the liquid in the pump housing, such as acid solution, penetrate into flushing water and increase useless
Acid treatment amount.This utility model is using the combined packing_seal 14 of no flushing water, it is to avoid flushing water penetrates into the problem in the pump housing.
And packing_seal 14 will be caused to damage because of no-cooling-water, improve the service life of centrifugal pump.Due to packing_seal 14 no
Flushing water, during use, the temperature of packing_seal 14 can accordingly raise, so centrifugal pump seal architecture is in non-explosive
Medium, such as spent acid, conveying.
The outside setting liquid of packing_seal 14 collects ring 12, and liquid is collected ring 12 formation and unloaded liquid opening, and liquid collects ring
12 connected drainage pipes 13.Liquid collects the lowest part that ring 12 is arranged at packing_seal 14, that is, be arranged at the bottom of packing_seal 14.
The specification of discharging tube 13 is DN25.When centrifugal pump is out of service, in the body of centrifugal pump connecting tube with the pump housing in liquid, for example
Acid solution, flows in packing_seal 14 from attached leaf room 5, is stored in stuffing box 8, then is flowed by the liquid collection ring 12 of packing_seal 14
Enter discharging tube 13, the end of discharging tube 13 is accessed geosyncline, acid solution entered and collects in geosyncline and recycle.Stuffing box 8 is used for
Storage acid solution.In order to improve the service life of centrifugal pump seal structure, the rotating speed of centrifugal pump selects 1480 revs/min, that is, select 4 poles
Motor.
Claims (4)
1. centrifugal pump seal structure, including front pump cover (1), impeller (4), pump cover (7) and pump shaft (10), pump shaft (10) passes through pump cover
(7), the termination of pump shaft (10) connects described impeller (4) by impeller nut (3), the pump shaft (10) of pump cover (7) side
The sheathed axle sleeve (11) in outside；It is characterized in that：Attached leaf room (5) is set between pump cover (7) and impeller (4), setting in attached leaf room (5)
Attached impeller (6), and attached impeller (6) is fixedly installed on pump shaft (10)；It is packing_seal (14) outside axle sleeve (11), described packing
Sealing (14) is the combined packing_seal of no flushing water, and the outside setting liquid of packing_seal (14) collects ring (12), liquid
Collect ring (12) connected drainage pipe (13).
2. centrifugal pump seal structure as claimed in claim 1 it is characterised in that：Filler is fixedly mounted outside described axle sleeve (11)
Case (8), stuffing box (8) passes through gland (9) and closes, and described packing_seal (14) is connected with stuffing box (8).
3. centrifugal pump seal structure as claimed in claim 2 it is characterised in that：Described liquid is collected ring (12) and is arranged at packing
The lowest part of sealing (14).
4. centrifugal pump seal structure as claimed in claim 1 it is characterised in that：The specification of described discharging tube (13) is DN25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027900.6U CN206000773U (en) | 2016-08-31 | 2016-08-31 | Centrifugal pump seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027900.6U CN206000773U (en) | 2016-08-31 | 2016-08-31 | Centrifugal pump seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000773U true CN206000773U (en) | 2017-03-08 |
Family
ID=58193669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027900.6U Expired - Fee Related CN206000773U (en) | 2016-08-31 | 2016-08-31 | Centrifugal pump seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610506A (en) * | 2020-12-16 | 2021-04-06 | 三峡大学 | Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying |
-
2016
- 2016-08-31 CN CN201621027900.6U patent/CN206000773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610506A (en) * | 2020-12-16 | 2021-04-06 | 三峡大学 | Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20170831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |