CN201753766U - Pressurized water backwashing type shaft sealing device - Google Patents
Pressurized water backwashing type shaft sealing device Download PDFInfo
- Publication number
- CN201753766U CN201753766U CN2010202607251U CN201020260725U CN201753766U CN 201753766 U CN201753766 U CN 201753766U CN 2010202607251 U CN2010202607251 U CN 2010202607251U CN 201020260725 U CN201020260725 U CN 201020260725U CN 201753766 U CN201753766 U CN 201753766U
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- Prior art keywords
- stationary ring
- sealing device
- shower nozzle
- static ring
- nozzle
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- Expired - Fee Related
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Abstract
The utility model discloses a pressurized water backwashing type shaft sealing device. The technical scheme of the shaft sealing device includes that a sealing device sleeved on the circumferential surface of a shaft comprises a static ring gasket, a static ring and a movable ring which are sequentially sleeved on the circumferential surface of the shaft, the static ring is arranged inside the static ring gasket, at least one sprayer is arranged on the outer circumferential surface of the static ring gasket, a nozzle of the sprayer extends into the static ring gasket, and an external backwashing water pipe is connected to the tail end of the sprayer. The pressurized water backwashing type shaft sealing device has the advantage that water with certain pressure forms water rings around a sealed surface via the nozzle or timely flushes solid granules on the periphery of the sealed surface to wash, cool and protect the sealed surface and reduce corrosive media or solid granules flowing into the sealed surface to abrade or corrode the sealed surface. The pressurized water backwashing type shaft sealing device also has the advantages of self-cleaning, self-cooling, corrosion and abrasion resistance, low cost, simple, convenient and easy technical means, and higher popularization and application values.
Description
Technical field
The utility model relates to shaft sealer, particularly a kind of shaft sealer with the press water back flush type.
Background technique
The application of mechanical seal is wider, for example, is applied among the sealing of industry rotating machinerys such as chemical industry, papermaking, sewage, and sealed medium has oil, water, sewage, weak acid, weak base and contains solution of a small amount of microparticle etc.
Mechanical seal is applicable to low temperature, high temperature, vacuum, high pressure, different rotating speeds, and various Korrosionsmediums and contain the sealing of abrasive particle medium etc., owing to have good anti-vibration, insensitive to the vibration of running shaft, beat and axle to the deflection of Seal cage, advantage such as packing seal long service life, good sealing effect and being used widely relatively.But its structure is relatively complicated, to making the processing request height, and installation and replacing are cumbersome, particularly when pumping contains the liquid of solid particle or corrosive liquids, solid particle liquid or corrosive liquids enter the inner meeting of mechanical sealing element and produce attrition and attack, cause the damage of Sealing and the seal life weak point occurs, cause problems such as seal failure.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, and a kind of shaft sealer of band press water back flush type of simple in structure, easy for installation and good seal performance is provided.
The purpose of this utility model realizes by following proposal:
A kind of shaft sealer with the press water back flush type, described seal arrangement is sheathed on a circumferential surface, forms the sealing water ring by press water between dynamic and static ring.Described seal arrangement comprises that clutch collar successively is located at stationary ring sealing gasket, stationary ring, the rotating ring of a circumferential surface.Described stationary ring is arranged at the inside of stationary ring sealing gasket, and the outer peripheral surface of described stationary ring sealing gasket is provided with at least one shower nozzle, and the nozzle of shower nozzle stretches into stationary ring sealing gasket inside, and the end of shower nozzle connects outside backwashing pressure water pipe.
One end of described rotating ring is provided with flange, and the sealing surface of flange and stationary ring offsets, the nozzle location of described shower nozzle be in rotating ring flange top and with the sealing surface of stationary ring in opposite directions.
The other end of described rotating ring also is disposed with " zero " shape circle, check ring, spring.
Also be provided with hydraulic valve between described shower nozzle and the backwash water pipe and regulate, the material of described backwash water pipe, shower nozzle is a resistance to compression non-corrosive alloy material.
The utility model has following advantage and effect with respect to prior art:
The utility model is introduced mechanical seal inside with the water of certain pressure by shower nozzle; be the nozzle location of shower nozzle be in rotating ring the flange top and with the sealing surface of stationary ring in opposite directions; water with certain pressure forms water ring by nozzle or in time washes away and enters sealing surface solid particle on every side around sealing surface; sealing surface is washed, cools off and protects, and minimizing Korrosionsmedium or solid particle inflow sealing surface form wearing and tearing and the erosion to sealing surface.The utlity model has automatically cleaning, the characteristics of cooling, corrosion and wear certainly, the spillage that brings because of the corrosion of Sealing inter deterioration that can solve that mechanical seal exists and the damage problem of Sealing have improved sealability and working life; The utility model is with low cost, and is simple in structure, and technological means is simple and easy to do, has application value preferably.
Description of drawings
Fig. 1 is the structural representation of the shaft sealer of the utility model band press water back flush type.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment
Fig. 1 is the shaft sealer of band press water back flush type of the present utility model, the sealing device is sheathed on the circumferential surface of axle 9, described seal arrangement comprises that clutch collar successively is located at stationary ring sealing gasket 1, stationary ring 2, the rotating ring 3 of axle 9 circumferential surfaces, described stationary ring 2 is arranged at the inside of stationary ring sealing gasket 1, the outer peripheral surface of described stationary ring sealing gasket 1 is provided with at least one shower nozzle 7, the nozzle 8 of shower nozzle 7 stretch into stationary ring sealing gasket 1 in, the end of shower nozzle 7 connects outside backwash water pipe (not shown).In order to reach better sealing effect, be provided with flange 10 at an end of rotating ring 3, flange 10 offsets with the side sealing face of stationary ring 2, nozzle 8 positions of shower nozzle 7 be in rotating ring 3 flange 10 tops and with the side sealing face of stationary ring 2 in opposite directions.The backwash water pipe will have the water of certain pressure and introduce nozzle 8, and the direction of nozzle 8 injection waters is parallel with axle 9, and water flow pressure needs greater than sealed external slurries pressure; The current that spray by nozzle 8 form water ring around the side sealing face of stationary ring 2, the offside sealing surface washes, cools off and protects, and minimizing Korrosionsmedium or solid particle inflow sealing surface form wearing and tearing and the erosion to sealing surface.
As shown in Figure 1, also set gradually " zero " shape circle 4, check ring 5, spring 6 at the other end of rotating ring, the flange 10 of rotating ring 3 offsets with the side sealing face of stationary ring 2 under the thrust of spring 6, has improved sealability.
Also be provided with hydraulic pressure modulating valve 12 between described shower nozzle 7 and the backwash water pipe 11, pressure and the flow of controlling water by modulating valve 12 equate that it is stable evenly to reach inside and outside differential pressure to guarantee to spray water, and satisfies the requirement of internal and external pressure balance under the different load.
The material of described backwash water pipe, shower nozzle can adopt the anti-rotten alloy material of resistance to compression, to guarantee operation steady in a long-term.
As mentioned above, just can realize the utility model preferably.
The foregoing description only is the utility model preferred implementation; but mode of execution of the present utility model is not restricted to the described embodiments; other are any not to deviate from change, the modification done under spirit of the present utility model and the principle, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. shaft sealer with the press water back flush type, described seal arrangement is sheathed on a circumferential surface, it is characterized in that: described seal arrangement comprises that clutch collar successively is located at the stationary ring sealing gasket of a circumferential surface, stationary ring, rotating ring, described stationary ring is arranged at the inside of stationary ring sealing gasket, the outer peripheral surface of described stationary ring sealing gasket is provided with at least one shower nozzle, the nozzle of shower nozzle stretches into stationary ring sealing gasket inside, the end of shower nozzle connects outside backwash water pipe, one end of described rotating ring is provided with flange, the sealing surface of flange and stationary ring offsets, and the nozzle location of described shower nozzle is in the flange top of rotating ring, and with the sealing surface of stationary ring in opposite directions.
2. the shaft sealer of band press water back flush type according to claim 1 is characterized in that: the other end of described rotating ring also is disposed with " zero " shape circle, check ring, spring.
3. the shaft sealer of band press water back flush type according to claim 2 is characterized in that: also be provided with hydraulic valve between described shower nozzle and the backwash water pipe and regulate.
4. the shaft sealer of band press water back flush type according to claim 3 is characterized in that: the material of described backwash water pipe, shower nozzle is a resistance to compression non-corrosive alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202607251U CN201753766U (en) | 2010-07-15 | 2010-07-15 | Pressurized water backwashing type shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202607251U CN201753766U (en) | 2010-07-15 | 2010-07-15 | Pressurized water backwashing type shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753766U true CN201753766U (en) | 2011-03-02 |
Family
ID=43621498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202607251U Expired - Fee Related CN201753766U (en) | 2010-07-15 | 2010-07-15 | Pressurized water backwashing type shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753766U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015580A (en) * | 2016-07-27 | 2016-10-12 | 浙江工业大学 | Dynamic and static pressure type cylindrical micro-convex body waviness distribution mechanical sealing structure |
| CN106762845A (en) * | 2016-11-24 | 2017-05-31 | 沈阳透平机械股份有限公司 | The method that water filling seal and compression machine water injection system change nozzle online |
| CN107638710A (en) * | 2017-09-22 | 2018-01-30 | 南通联源机电科技股份有限公司 | A kind of Potash Industry crystallizer of agitating shaft water-stop |
-
2010
- 2010-07-15 CN CN2010202607251U patent/CN201753766U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015580A (en) * | 2016-07-27 | 2016-10-12 | 浙江工业大学 | Dynamic and static pressure type cylindrical micro-convex body waviness distribution mechanical sealing structure |
| CN106015580B (en) * | 2016-07-27 | 2020-08-21 | 浙江工业大学 | Dynamic and static pressure type cylindrical micro-convex body waviness distribution mechanical sealing structure |
| CN106762845A (en) * | 2016-11-24 | 2017-05-31 | 沈阳透平机械股份有限公司 | The method that water filling seal and compression machine water injection system change nozzle online |
| CN106762845B (en) * | 2016-11-24 | 2019-09-13 | 沈阳透平机械股份有限公司 | The method that water filling seal and compression machine water injection system replace nozzle online |
| CN107638710A (en) * | 2017-09-22 | 2018-01-30 | 南通联源机电科技股份有限公司 | A kind of Potash Industry crystallizer of agitating shaft water-stop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20130715 |