CN101149117A - Static pressure sealing device - Google Patents
Static pressure sealing device Download PDFInfo
- Publication number
- CN101149117A CN101149117A CNA2007101878884A CN200710187888A CN101149117A CN 101149117 A CN101149117 A CN 101149117A CN A2007101878884 A CNA2007101878884 A CN A2007101878884A CN 200710187888 A CN200710187888 A CN 200710187888A CN 101149117 A CN101149117 A CN 101149117A
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- Prior art keywords
- seal ring
- housing
- seal
- hole
- static pressure
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Abstract
The present invention relates to mechanical sealing technology, and is especially one kind of pressure sealing device, which includes one external power source, one external power pipeline with one pressure gauge, one casing contacting the sealed part and with one through hole, and one sealing ring between the casing and the sealed part and with one sealing cavity communicated to the through hole in the casing. The sealing ring and the sealed part form one friction pair, the external power pipeline is communicated to the through hole in the casing, and the through hole has the inlet communicated to the admission valve of the power source and the outlet communicated to its exhaust valve. The mechanical sealing device of the present invention has excellent sealing effect, less parts, simple structure and other advantages.
Description
Technical field
The present invention relates to the mechanical seal device technical field, particularly a kind of static pressure sealing device.
Background technique
Traditional mechanical seal device of a great variety, its specific embodiments adopts combination sealing arrangement, flat seal mostly, and its friction pair relies on the resiliently deformable of spring, rubber etc. to keep in touch the sealing of face.No matter adopt which kind of sealing means, all have some defectives basically: component are many, mechanism is complicated, rate of fault is high, maintenance is inconvenient, cost is higher etc.Therefore wish that some component of exploitation are few, mechanism is simple, rate of fault is low, mechanical seal device easy to maintenance, lower-cost.
Summary of the invention
The purpose of this invention is to provide that a kind of component are few, mechanism is simple, rate of fault is low, static pressure sealing device easy to maintenance, lower-cost.
The objective of the invention is to realize by following technical proposals:
Static pressure sealing device of the present invention, comprise external power supply, pressure gauge on the pipeline of external power supply, it is characterized in that having one with to be sealed the contacted housing that is provided with through hole, be located at the seal ring between this housing and to be sealed, be provided with Seal cage in the seal ring, this Seal cage is connected with the through hole of housing, form friction pair between seal ring and to be sealed, the pipeline of external power supply is connected with the through hole of housing, the import of described through hole enters valve with power source and is connected, and the outlet of through hole is connected with the power source escape cock.
Described seal ring is arranged on the Seal cage positioned opposite of the seal ring in the housing in couples, the installation direction of every pair of seal ring is opposite, the outer ring of seal ring contacts with housing, and inner ring contacts with to be sealed, and the Seal cage of pair of seal rings is connected with a through hole of described housing.
The described internal diameter that is arranged on the seal ring in the housing in couples is provided with door less than external diameter at this housing and the seal ring outside.
Described to be sealed outer surface is provided with wear-resistant sleeve, and seal ring is located between housing and to be sealed 's the wear-resistant sleeve.
Described seal ring is rubber seal ring or polyamine fat high-abrasive material seal ring.
Wear-resistant sleeve is antifriction metal (AFM) wear-resistant sleeve, nonmetallic wear-resistant material wear-resistant sleeve or composite abrasion resistance material wear-resistant sleeve.
The described combined sealing ring that seal ring is set in pairs for two pairs or more.
Described seal ring outside door is connected with housing by bolt.
Working principle of the present invention is: the through hole of external power supply (pressurized gas, hydraulic fluid) by housing enters in the Seal cage and forms pressure, the sealing surface that makes seal ring under the effect of pressure closely contact on to be sealed or on to be sealed the wear-resistant sleeve and form good sealing.Pressure gauge on the pipeline of external power supply indicates the pressure changing in the Seal cage, in time adjusts the pressure in the Seal cage.When in pairs seal ring being set, because the internal diameter of seal ring less than external diameter, makes the frictional force of inner ring of seal ring less than the frictional force of outer ring, when rotary component drives that wear-resistant sleeve rotates or be mobile, just produce relative movement between the internal surface of wear-resistant sleeve and seal ring, form friction pair.The pressure that the wearing and tearing of friction pair rely on power source to produce compensates sealing ring deformation, and can adjust the rate of tension of seal ring according to operating mode, guarantees good seal.
Static pressure sealing device of the present utility model is that a kind of component are few, mechanism is simple, rate of fault is low, mechanical seal device easy to maintenance, lower-cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As Fig. 1, shown in Figure 2, static pressure sealing device of the present invention, comprise external power supply, pressure gauge on the pipeline of external power supply, it is characterized in that having one with to be sealed the 4 contacted housing 1 that is provided with through hole 3, be located at the seal ring 2 between this housing 1 and to be sealed 4, be provided with Seal cage 6 in the seal ring 2, this Seal cage 6 is connected with the through hole 3 of housing, form friction pair between seal ring 2 and to be sealed 4, the pipeline of external power supply is connected with the through hole of housing 3, and the import of described through hole enters valve with power source and is connected, and the outlet of through hole is connected with the power source escape cock.
Described Seal cage 6 positioned opposite that are arranged on the seal ring 2 in the housing 1 in couples, the installation direction of every pair of seal ring is opposite, the outer ring of seal ring contacts with housing 1, and inner ring contacts with to be sealed 4, and the Seal cage of pair of seal rings is connected with a through hole of described housing.
The described internal diameter that is arranged on the seal ring in the housing in couples is provided with door 7 less than external diameter at this housing 1 and seal ring 2 outsides.
Described to be sealed 4 outer surface is provided with wear-resistant sleeve 5, and seal ring 2 is located between housing 1 and to be sealed 's the wear-resistant sleeve 5.
Described seal ring 2 is rubber seal ring or polyamine fat high-abrasive material seal ring.
Wear-resistant sleeve 5 is antifriction metal (AFM) wear-resistant sleeve, nonmetallic wear-resistant material wear-resistant sleeve or composite abrasion resistance material wear-resistant sleeve.
The described combined sealing ring that seal ring is set in pairs for two pairs or more.
Described seal ring outside door 7 is connected with housing 1 by bolt 8.
Working principle of the present invention is: the through hole 3 of external power supply (pressurized gas, hydraulic fluid) by housing 1 enters in the Seal cage 6 and forms pressure, the inside and outside seal ring that makes seal ring 2 under the effect of pressure closely contact on to be sealed 4 the outer surface or tight contact wear-resistant sleeve 5 housing 1 and to be sealed 4.Pressure gauge on the pipeline of external power supply indicates the pressure changing in the Seal cage, in time adjusts the pressure in the Seal cage.When in pairs seal ring being set, because the internal diameter of seal ring 2 less than external diameter, makes the frictional force of inner ring of seal ring less than the frictional force of outer ring, when rotary component drives that wear-resistant sleeve 3 rotates or be mobile, just produce relative movement between the internal surface of wear-resistant sleeve 3 and seal ring 2, form friction pair.The pressure that the wearing and tearing of friction pair rely on power source to produce compensates sealing ring deformation, can adjust the rate of tension of seal ring according to operating mode, guarantees good seal.
Static pressure sealing device of the present invention is that a kind of component are few, mechanism is simple, rate of fault is low, easy to maintenance, cost is lower, the mechanical seal device of good seal.
Claims (8)
1. static pressure sealing device, comprise external power supply, pressure gauge on the pipeline of external power supply, it is characterized in that having one with to be sealed the contacted housing that is provided with through hole, be located at the seal ring between this housing and to be sealed, be provided with Seal cage in the seal ring, this Seal cage is connected with the through hole of housing, form friction pair between seal ring and to be sealed, the pipeline of external power supply is connected with the through hole of housing, the import of described through hole enters valve with power source and is connected, and the outlet of through hole is connected with the power source escape cock.
2. static pressure sealing device according to claim 1, it is characterized in that described seal ring be arranged in couples housing in, the Seal cage positioned opposite of seal ring, the installation direction of every pair of seal ring is opposite, the outer ring of seal ring contacts with housing, inner ring contacts with to be sealed, and the Seal cage of pair of seal rings is connected with a through hole of described housing.
3. static pressure sealing device according to claim 2, the internal diameter that it is characterized in that described seal ring are provided with door less than external diameter at this housing and the seal ring outside.
4. static pressure sealing device according to claim 1 is characterized in that described to be sealed outer surface is provided with wear-resistant sleeve, and seal ring is located between housing and to be sealed 's the wear-resistant sleeve.
5. according to claim 1,2,3 or 4 described static pressure sealing devices, it is characterized in that described seal ring is rubber seal ring or polyamine fat high-abrasive material seal ring.
6. static pressure sealing device according to claim 4 is characterized in that described wear-resistant sleeve is antifriction metal (AFM) wear-resistant sleeve, nonmetallic wear-resistant material wear-resistant sleeve or composite abrasion resistance material wear-resistant sleeve.
7. static pressure sealing device according to claim 2 is characterized in that the described combined sealing ring that seal ring is set in pairs for two pairs or more.
8. static pressure sealing device according to claim 2 is characterized in that described seal ring outside door is connected with housing by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101878884A CN101149117A (en) | 2007-11-15 | 2007-11-15 | Static pressure sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101878884A CN101149117A (en) | 2007-11-15 | 2007-11-15 | Static pressure sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101149117A true CN101149117A (en) | 2008-03-26 |
Family
ID=39249764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101878884A Pending CN101149117A (en) | 2007-11-15 | 2007-11-15 | Static pressure sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101149117A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278483A (en) * | 2011-06-24 | 2011-12-14 | 重庆市大足县动能矿山物资有限责任公司 | Bidirectional deformation-type sealing ring |
| CN110925434A (en) * | 2019-11-27 | 2020-03-27 | 西安航天动力研究所 | Ultra-low temperature high-bearing bidirectional sealing device |
-
2007
- 2007-11-15 CN CNA2007101878884A patent/CN101149117A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278483A (en) * | 2011-06-24 | 2011-12-14 | 重庆市大足县动能矿山物资有限责任公司 | Bidirectional deformation-type sealing ring |
| CN110925434A (en) * | 2019-11-27 | 2020-03-27 | 西安航天动力研究所 | Ultra-low temperature high-bearing bidirectional sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: QI YUFU Free format text: FORMER OWNER: QI YONGXIN Effective date: 20080620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080620 Address after: Liaoning province Anshan City Tiedong District oasis of 333-04 post: 114001 encoding Applicant after: Qi Yufu Address before: Group 38, Construction Committee of Shannan District, Anshan, Liaoning Province, China: 114001 Applicant before: Qi Yongxin |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080326 |