CN204458481U - A kind of clear water centrifugal pump internal pressure type sealing configuration - Google Patents
A kind of clear water centrifugal pump internal pressure type sealing configuration Download PDFInfo
- Publication number
- CN204458481U CN204458481U CN201420861673.1U CN201420861673U CN204458481U CN 204458481 U CN204458481 U CN 204458481U CN 201420861673 U CN201420861673 U CN 201420861673U CN 204458481 U CN204458481 U CN 204458481U
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- CN
- China
- Prior art keywords
- stuffing box
- gland
- box body
- filler
- spring
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of clear water centrifugal pump internal pressure type sealing configuration, it is characterized in that: one end of stuffing box body is opening end, the other end and packing sleeve are tightly connected, be provided with built-in spring, inner side filler, packing ring and outside filler in stuffing box body successively, the opening end of stuffing box body is provided with the Gland that can screw in.During use, because the utility model adopts spring inner compression, the outside avoided near sealing gland regulates.Constant pretightening force is provided near Gland with conventional filler sealing configuration, cause the Radial pressure distribution of filler to reduce gradually inwards from gland contacting point to compare, this model utility packing seal structure, adopt built-in spring and Gland jointly to the two-way pretension of filler, make stuffing box packing vertically radial force be evenly distributed, and the spring in sealing configuration has auto-compensation ability, optimize gland sealed structural feature and sealing principle, its sealability and working life are improved greatly.
Description
Technical field
The utility model relates to the technical field of centrifugal pump, specifically a kind of clear water centrifugal pump internal pressure type sealing configuration.
Background technique
At present, packing seal stops a kind of seal form of leaking with filler blocking leakage way.Have structure simple, the plurality of advantages such as mounting or dismounting are convenient, with low cost, are widely used on centrifugal pump.Existing packing seal structure great majority are placed in Stuffing box for filler, are pressed on axle by gland by filler, and filler relies on gland axial compression, generation radial deformation, make it contact with letter body internal surface with sleeve outer surface and seal.There is following drawback in this structure:
1, filler pretightening force relies on Gland to be provided by gland fasteners completely, and cause the outer end pressure of filler excessive, inner side filler pretightening force is not enough, easily produces leakage.
2, when amount of leakage is excessive, often strengthen pretightening force, cause axle sleeve serious wear, the mechanical efficiency of pump reduces.
3, under impacting force effect, the Radial pressure distribution of filler reduces inwards gradually from gland contacting point, and outer end filler pretension is excessive, causes filler reduced lifetime.
Summary of the invention
The purpose of this utility model is the clear water centrifugal pump internal pressure type sealing configuration providing a kind of improvement, and it can overcome in prior art the some shortcomings easily producing leakage, filler reduced lifetime.
To achieve these goals, the technical solution of the utility model is: a kind of clear water centrifugal pump internal pressure type sealing configuration, it mainly comprises stuffing box body, with the packing sleeve arranged in stuffing box body, it is characterized in that: one end of stuffing box body is opening end, the other end and packing sleeve are tightly connected, and are provided with built-in spring, inner side filler, packing ring and outside filler in stuffing box body successively, and the opening end of stuffing box body is provided with the Gland that can screw in.
During use, because the utility model adopts spring inner compression, the outside avoided near sealing gland regulates.Constant pretightening force is provided near Gland with conventional filler sealing configuration, cause the Radial pressure distribution of filler to reduce gradually inwards from gland contacting point to compare, this model utility packing seal structure, adopt built-in spring and Gland jointly to the two-way pretension of filler, make stuffing box packing vertically radial force be evenly distributed, and the spring in sealing configuration has auto-compensation ability, optimize gland sealed structural feature and sealing principle, its sealability and working life are improved greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Label in accompanying drawing is expressed as follows: 1, packing sleeve; 2, built-in spring; 3, stuffing box body; 4, filler; 5, packing ring; 6, Gland; 7, gland fasteners.
A kind of clear water centrifugal pump internal pressure type sealing configuration described in the utility model, it mainly comprises stuffing box body, with the packing sleeve arranged in stuffing box body, its difference with the prior art is: one end of stuffing box body is opening end, the other end and packing sleeve are tightly connected, be provided with built-in spring, inner side filler, packing ring and outside filler in stuffing box body successively, the opening end of stuffing box body is provided with the Gland that can screw in.The spring matched with sleeve size and filler cross section selected by built-in spring, and this spring answers tool antirust, anti abrasive character.
The length of stuffing box body is greater than 25cm, and packing sleeve outside is located at by built-in spring housing, and the thickness of packing sleeve is 0.5-1.5cm, is tightly connected between packing sleeve and stuffing box body by seal ring.The length 10-20cm longer than the length of stuffing box body of packing sleeve, is formed a fixed connection by gland fasteners between Gland and stuffing box body.
Be provided with partition between built-in spring and inner side filler, partition is sheathed with on packing sleeve, and is formed with packing sleeve and be slidably connected.Partition be arranged so that built-in spring is in the moving process of compression or resilience, filler can not fall in built-in spring, causes the generation of the phenomenon such as stuck, also improves the working life of built-in spring.
In enforcement, by spring works length, stuffing box body appropriateness lengthened, before loading filler, first spring is put into stuffing box body, inside loading successively, filler, packing ring, outside filler, Gland finally screw in fastening piece.Because this structure adopts spring inner compression, the outside avoided near sealing gland regulates.
Constant pretightening force is provided near Gland with conventional filler sealing configuration, cause the Radial pressure distribution of filler to reduce gradually inwards from gland contacting point to compare, this model utility packing seal structure, adopt built-in spring and Gland jointly to the two-way pretension of filler, make stuffing box packing vertically radial force be evenly distributed, and the spring in sealing configuration has auto-compensation ability, optimize gland sealed structural feature and sealing principle, its sealability and working life are improved greatly.
Claims (4)
1. a clear water centrifugal pump internal pressure type sealing configuration, it mainly comprises stuffing box body, with the packing sleeve arranged in stuffing box body, it is characterized in that: one end of stuffing box body is opening end, the other end and packing sleeve are tightly connected, be provided with built-in spring, inner side filler, packing ring and outside filler in stuffing box body successively, the opening end of stuffing box body is provided with the Gland that can screw in.
2. a kind of clear water centrifugal pump internal pressure type sealing configuration according to claim 1, it is characterized in that: the length of stuffing box body is greater than 25cm, packing sleeve outside is located at by built-in spring housing, the thickness of packing sleeve is 0.5-1.5cm, is tightly connected between packing sleeve and stuffing box body by seal ring.
3. a kind of clear water centrifugal pump internal pressure type sealing configuration according to claim 1, is characterized in that: the length 10-20cm longer than the length of stuffing box body of packing sleeve, is formed a fixed connection by gland fasteners between Gland and stuffing box body.
4. a kind of clear water centrifugal pump internal pressure type sealing configuration according to claim 1, it is characterized in that: be provided with partition between built-in spring and inner side filler, partition is sheathed with on packing sleeve, and is formed with packing sleeve and be slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861673.1U CN204458481U (en) | 2014-12-31 | 2014-12-31 | A kind of clear water centrifugal pump internal pressure type sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861673.1U CN204458481U (en) | 2014-12-31 | 2014-12-31 | A kind of clear water centrifugal pump internal pressure type sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458481U true CN204458481U (en) | 2015-07-08 |
Family
ID=53665376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861673.1U Expired - Fee Related CN204458481U (en) | 2014-12-31 | 2014-12-31 | A kind of clear water centrifugal pump internal pressure type sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458481U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167176A (en) * | 2018-01-30 | 2018-06-15 | 浙江大农实业股份有限公司 | The stuffing-box of high-pressure plunger pump with self-cleaning function |
| CN108266368A (en) * | 2018-01-30 | 2018-07-10 | 浙江大农实业股份有限公司 | 100KW grade high-pressure plunger pumps with self-cleaning function |
| CN110735798A (en) * | 2019-12-03 | 2020-01-31 | 新沂市利源机械有限公司 | sealed leakproof horizontal centrifugal sand pump |
| CN114688073A (en) * | 2020-12-30 | 2022-07-01 | 上海连成（集团）有限公司 | Packaging type packing sealing structure |
-
2014
- 2014-12-31 CN CN201420861673.1U patent/CN204458481U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167176A (en) * | 2018-01-30 | 2018-06-15 | 浙江大农实业股份有限公司 | The stuffing-box of high-pressure plunger pump with self-cleaning function |
| CN108266368A (en) * | 2018-01-30 | 2018-07-10 | 浙江大农实业股份有限公司 | 100KW grade high-pressure plunger pumps with self-cleaning function |
| CN110735798A (en) * | 2019-12-03 | 2020-01-31 | 新沂市利源机械有限公司 | sealed leakproof horizontal centrifugal sand pump |
| CN114688073A (en) * | 2020-12-30 | 2022-07-01 | 上海连成（集团）有限公司 | Packaging type packing sealing structure |
| CN114688073B (en) * | 2020-12-30 | 2024-05-07 | 上海连成（集团）有限公司 | Packaging type packing sealing structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20181231 |