CN207975020U - Centrifugal pump sealing device - Google Patents
Centrifugal pump sealing device Download PDFInfo
- Publication number
- CN207975020U CN207975020U CN201820315946.0U CN201820315946U CN207975020U CN 207975020 U CN207975020 U CN 207975020U CN 201820315946 U CN201820315946 U CN 201820315946U CN 207975020 U CN207975020 U CN 207975020U
- Authority
- CN
- China
- Prior art keywords
- box
- gland
- stuffing
- centrifugal pump
- sealing
- 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
Links
Abstract
The utility model discloses a kind of centrifugal pump sealing devices, include a stuffing-box, a gland and the once sealing filler for sealing centrifugal pump shaft, it is fixed with the first seal washer in the fit clearance of stuffing-box and a gland, the front end of gland is installed with secondary stuffing-box, in secondary stuffing-box secondary seal filler is filled in the surrounding of sealing centrifugal pump shaft, the front end of secondary stuffing-box is fixedly connected with secondary gland, and the second seal washer is fixed in the fit clearance of secondary stuffing-box and a gland.The utility model has the function of pressure sealing under special circumstances, simple, effective, stable, practical reliable.
Description
Technical field
The utility model is related to centrifugal pump shaft sealing structure field, specifically a kind of centrifugal pump sealing devices.
Background technology
Centrifugal pump is the common running device of synthesis ammonia system device, and with the passage of the duration of runs, packing seal is let out
Leakage is also frequent.When there is packing seal leakage, if being overhauled not in time, synthesis ammonia system will be directly influenced
The steady production of device, meanwhile, because of its leakage, material loss is not only brought, but also certain pollution is brought to environment.
When packing seal leakage occurs in centrifugal pump, under normal circumstances, termination of pumping is generally taken, and close its terminal valve,
Most pump pressure is let out, installs packing seal additional again.But appearance pump terminal valve pass is not dead sometimes, lets out pressure.Traditional place
Reason method is：It waits for system shutdown chance, replaces its terminal valve, then overhaul to pump.This processing mode will certainly influence
The normal use of the pump brings destabilizing factor to production.So let out the case where pressing for pump, but therefore do not cause be
System parking, influences to produce, to need to consider to find a kind of sealing device：It is close by improving in the case where not influencing production
Seal apparatus realizes pressure sealing, to ensure that the pump can run well, realization device long-period stable operation.
Utility model content
The purpose of this utility model is to provide a kind of centrifugal pump sealing device, has the work(of pressure sealing under special circumstances
Can, it is simple, effective, stable, practical reliable.
The technical solution of the utility model is as follows：
A kind of centrifugal pump sealing device includes a stuffing-box, the gland and one for sealing centrifugal pump shaft
Secondary airtight and watertight padding, it is characterised in that：Stuffing-box is fixed with first with the fit clearance of a gland
Seal washer, the front end of a gland are installed with secondary stuffing-box, in the secondary stuffing-box sealing from
The surrounding of heart pump shaft is filled with secondary seal filler, and the front end of secondary stuffing-box is fixedly connected with secondary gland, secondary
Stuffing-box is fixed with the second seal washer with the fit clearance of a gland.
The centrifugal pump sealing device, it is characterised in that：The secondary stuffing-box is fixed by bolts mounted on institute
State the front end of a gland.
The centrifugal pump sealing device, it is characterised in that：The secondary gland, which is fixed by bolts, to be mounted on
Secondary seal filler is pressed in the secondary stuffing-box by the front end of the secondary stuffing-box, secondary gland.
It fails in former once sealing filler, and centrifugal pump cannot lay down pressure, when carrying out maintenance replacement pump seal filler,
1, using the first and second seal washer respectively to a gland and a stuffing-box and a gland and secondary filler
Letter is sealed；2, secondary stuffing-box is instead of a stuffing-box；3, secondary seal filler is instead of once sealing filler；4, two
Secondary gland has exercised the function of a gland, compresses filler, completes the sealing of axis leakage.
The beneficial effects of the utility model：
The utility model solves centrifugal pump when original packing seal structure fails, and leads to its import or export valve
Leakage occurs and the problem of replacing Pump Shaft Seal filler can not be overhauled, it is ensured that the continuous operation of device avoids unnecessary stop
Vehicle；Meanwhile reducing material leakage, avoid environmental pollution；In addition, the utility model have it is simple in structure, it is easy to process, easily
The features such as installation, investment is low, and sealing performance is strong, it is the special technology for pumping packing seal pressure sealing, is widely used in chemical fertilizer, coke
Change, coal gas, chemical fibre, environmental protection and the centrifugal pump packing seal of other industry.
Description of the drawings
Fig. 1 is the utility model Structure explosion diagram.
Specific implementation mode
Referring to Fig. 1, a kind of centrifugal pump sealing device includes the 1, filler of a stuffing-box for sealing centrifugal pump shaft
It is fixed with the first seal washer in the fit clearance of gland 3 and once sealing filler, a stuffing-box 1 and a gland 3
2, the front end of a gland 3 is installed with secondary stuffing-box 5, and the four of centrifugal pump shaft is being sealed in secondary stuffing-box 5
Week is filled with secondary seal filler, and the front end of secondary stuffing-box 5 is fixedly connected with secondary gland 6, secondary stuffing-box 5 and one
The second seal washer 4 is fixed in the fit clearance of secondary gland 3.
In the utility model, secondary stuffing-box 5 is fixed by bolts mounted on the front end of a gland 3.
Secondary gland 6 is fixed by bolts mounted on the front end of secondary stuffing-box 5, and secondary gland 6 will be secondary
Airtight and watertight padding is pressed in secondary stuffing-box 5.
It fails in former once sealing filler, and centrifugal pump cannot lay down pressure, when carrying out maintenance replacement pump seal filler,
1, using the first and second seal washer 2,4 respectively to a gland 3 and a stuffing-box 1 and a gland 3 and two
Secondary stuffing-box 5 is sealed；2, secondary stuffing-box 5 is instead of a stuffing-box 1；3, secondary seal filler is instead of once sealing
Filler；4, secondary gland 6 has exercised the function of a gland 3, compresses filler, completes the sealing of axis leakage.
Claims (3)
- Include a stuffing-box for sealing centrifugal pump shaft, a gland and primary 1. a kind of centrifugal pump sealing device Airtight and watertight padding, it is characterised in that：Stuffing-box with to be fixed with first in the fit clearance of a gland close The front end of seal washer, a gland is installed with secondary stuffing-box, is centrifuged in sealing in the secondary stuffing-box The surrounding for pumping shaft is filled with secondary seal filler, and the front end of secondary stuffing-box is fixedly connected with secondary gland, secondary to fill out Material letter is fixed with the second seal washer with the fit clearance of a gland.
- 2. centrifugal pump sealing device according to claim 1, it is characterised in that：The secondary stuffing-box is solid using bolt Dingan County is mounted in the front end of a gland.
- 3. centrifugal pump sealing device according to claim 1, it is characterised in that：The secondary gland uses bolt It is fixedly mounted on the front end of the secondary stuffing-box, secondary seal filler is pressed on the secondary filler by secondary gland In letter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820315946.0U CN207975020U (en) | 2018-03-08 | 2018-03-08 | Centrifugal pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820315946.0U CN207975020U (en) | 2018-03-08 | 2018-03-08 | Centrifugal pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975020U true CN207975020U (en) | 2018-10-16 |
Family
ID=63765022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820315946.0U Expired - Fee Related CN207975020U (en) | 2018-03-08 | 2018-03-08 | Centrifugal pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975020U (en) |
-
2018
- 2018-03-08 CN CN201820315946.0U patent/CN207975020U/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: 20181016 Termination date: 20210308 |