CN103527785A - Sealing device for high-pressure airflow distribution valve - Google Patents
Sealing device for high-pressure airflow distribution valve Download PDFInfo
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- CN103527785A CN103527785A CN201310503676.8A CN201310503676A CN103527785A CN 103527785 A CN103527785 A CN 103527785A CN 201310503676 A CN201310503676 A CN 201310503676A CN 103527785 A CN103527785 A CN 103527785A
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- valve body
- ring
- stuffing box
- seal ring
- seal
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Abstract
The invention relates to a sealing device for a high-pressure airflow distribution valve, and belongs to the technical field of aerospace, and the sealing device is mainly used for design of wind tunnel experiment devices. The sealing device comprises a valve body, a packing case, a seal ring, a gasket, a guide ring, bolts, nuts and a support, wherein the valve body is a column body with a cavity, the packing case is located in the cavity of the valve body and can move up and down, sealing is conducted between the packing case and the valve body through the seal ring and the gasket, a groove is formed in the inner side wall of the valve body, the guide ring is located in the groove of the valve body to conduct limiting on the packing case, the seal ring and the gasket so that the packing case, the seal ring and the gasket can move up and down in the inner cavity of the valve body, the support is located at the top end of the valve body, and the packing case is fixed through the bolts and the nuts.
Description
Technical field
The present invention relates to a kind of seal arrangement for high pressure draught distributing valve, be mainly used in the design of tunnel test equipment, belong to field of aerospace technology.
Background technique
In existing hypersonic wind tunnel, for high pressure air pipeline, because stream pressure is high, the structure of valve body mostly is forging structure, and what the sealing configuration pattern of valve mainly adopted is O type circle, German-style metal lensring and anistree sealing configuration.For the wind-tunnel of 0.5 meter of magnitude, this structural type can also meet the demands, and for the conventional hypersonic wind tunnel of 1 meter of magnitude, this sealing configuration form is difficult to meet the demands.The valve end size designing according to conventional computational methods is quite large, and corresponding bolt size and quantity are bigger than normal, and valve cost is very high.
For development demand, invent a kind of seal arrangement of self tightening, this device sealability is reliable, corresponding housing and bolt arrangement size reduction.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to propose a kind of seal arrangement for high pressure draught distributing valve.
The object of the invention is to be achieved through the following technical solutions.
A kind of seal arrangement for high pressure draught distributing valve of the present invention, this device comprises valve body, Stuffing box, seal ring, packing ring, lead ring, bolt, nut and support;
Valve body is the cylinder of cavity, and Stuffing box is positioned at the cavity of valve body and can moves up and down;
Between Stuffing box and valve body, by seal ring and packing ring, seal;
On the madial wall of valve body, be with flutedly, lead ring is positioned at the groove of valve body, Stuffing box, seal ring and packing ring is carried out spacing, makes Stuffing box, seal ring and packing ring up and down in the inner chamber of valve body;
Support is positioned at the top of valve body, and Stuffing box is fixed by screw bolt and nut;
The inclined-plane of described Stuffing box and the inclined-plane of seal ring form linear sealing;
Described seal ring is the elastomer that has circumferential groove in its end portion;
Stuffing box, seal ring, packing ring and lead ring are realized sealing in the effect of pressurized gas;
Stuffing box is fixed on support by bolt, nut, and the inclined-plane of Stuffing box and the inclined-plane of seal ring form linear sealing, under the effect of high pressure air, upwards floats, and provides packing ring required impacting force;
Seal ring is the elastomer that has circumferential groove in its end portion, with lead ring, packing ring is compressed on the one hand, and the inclined-plane of seal ring and the inclined-plane of Stuffing box form linear sealing on the other hand.
After packing ring extrusion, fill the injustice place of surface of contact, stop medium to be revealed;
Lead ring is arranged in the groove of valve body, and lead ring compresses packing ring with seal ring on the one hand, on the other hand power is passed to valve body.
The tightening force of bolt makes to form seal pressure between the inclined-plane of Stuffing box and the inclined-plane of seal ring.
Beneficial effect
Device of the present invention has following characteristics: 1 physical dimension is little; 2 belong to self-energized seal, and sealing is reliable; The tightening force of 3 bolts is little; 4 are not stressed or the impact of temperature fluctuation; 5 to can be used for pressure large, the occasion that bore is large.
Accompanying drawing explanation
Fig. 1 is the structural representation of device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
As shown in Figure 1, a kind of seal arrangement for high pressure draught distributing valve, this device comprises valve body 1, Stuffing box 2, seal ring 3, packing ring 4, lead ring 5, bolt 6, nut 7 and support 8;
The cylinder that valve body 1 is cavity, Stuffing box 2 is positioned at the cavity of valve body 1 and can moves up and down;
Between Stuffing box 2 and valve body 1, by seal ring 3 and packing ring 4, seal;
On the madial wall of valve body 1, be with flutedly, lead ring 5 is positioned at the groove of valve body 1, Stuffing box 2, seal ring 3 and packing ring 4 is carried out spacing, makes Stuffing box 2, seal ring 3 and packing ring 4 up and down in the inner chamber of valve body 1;
The inclined-plane of described Stuffing box 2 and the inclined-plane of seal ring 3 form linear sealing;
Described seal ring 3 is the elastomers that have circumferential groove in its end portion;
After packing ring 4 extrusions, fill the injustice place of surface of contact, stop medium to be revealed;
The tightening force of bolt 6 makes to form seal pressure between the inclined-plane of Stuffing box 2 and the inclined-plane of seal ring 3.
Claims (3)
1. for a seal arrangement for high pressure draught distributing valve, it is characterized in that: this device comprises valve body (1), Stuffing box (2), seal ring (3), packing ring (4), lead ring (5), bolt (6), nut (7) and support (8);
The cylinder that valve body (1) is cavity, Stuffing box (2) is positioned at the cavity of valve body 1 and can moves up and down;
Between Stuffing box (2) and valve body (1), by seal ring (3) and packing ring (4), seal;
On the madial wall of valve body (1), be with fluted, lead ring (5) is positioned at the groove of valve body (1), Stuffing box (2), seal ring (3) and packing ring (4) are carried out spacing, make Stuffing box (2), seal ring (3) and packing ring (4) up and down in the inner chamber of valve body (1);
Support (8) is positioned at the top of valve body (1), and Stuffing box (2) is fixed by bolt (6) and nut (7).
2. a kind of seal arrangement for high pressure draught distributing valve according to claim 1, is characterized in that: the inclined-plane of the inclined-plane of Stuffing box (2) and seal ring (3) forms linear sealing.
3. a kind of seal arrangement for high pressure draught distributing valve according to claim 1, is characterized in that: seal ring (3) is the elastomer that has circumferential groove in its end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503676.8A CN103527785A (en) | 2013-10-23 | 2013-10-23 | Sealing device for high-pressure airflow distribution valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503676.8A CN103527785A (en) | 2013-10-23 | 2013-10-23 | Sealing device for high-pressure airflow distribution valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527785A true CN103527785A (en) | 2014-01-22 |
Family
ID=49930021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310503676.8A Pending CN103527785A (en) | 2013-10-23 | 2013-10-23 | Sealing device for high-pressure airflow distribution valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117588582A (en) * | 2023-11-22 | 2024-02-23 | 山东泰展机电科技股份有限公司 | Valve core and valve body linkage type sealing structure suitable for distribution valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0524048A1 (en) * | 1991-07-08 | 1993-01-20 | Société des Joints Industriels IMPERATOR | Seal with metallic core and packing made of expanded graphite |
| CN101216104A (en) * | 2007-12-28 | 2008-07-09 | 肖栋 | Chamber type limit self-tightening type seal |
| CN101608690A (en) * | 2008-06-20 | 2009-12-23 | 南京理工大学 | Uprise the self-tightening face seals under the press strip spare |
| CN201696611U (en) * | 2010-06-10 | 2011-01-05 | 浙江超达阀门股份有限公司 | Pressure self-tightening sealing device |
| CN202109014U (en) * | 2011-05-31 | 2012-01-11 | 斯耐特(湖北)工业制造有限公司 | High performance hydrogen-contacting high pressure control valve |
| CN202612667U (en) * | 2012-05-16 | 2012-12-19 | 江苏万兴石油机械阀门有限公司 | Thermal-collected steam stop-rectifying valve |
-
2013
- 2013-10-23 CN CN201310503676.8A patent/CN103527785A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0524048A1 (en) * | 1991-07-08 | 1993-01-20 | Société des Joints Industriels IMPERATOR | Seal with metallic core and packing made of expanded graphite |
| CN101216104A (en) * | 2007-12-28 | 2008-07-09 | 肖栋 | Chamber type limit self-tightening type seal |
| CN101608690A (en) * | 2008-06-20 | 2009-12-23 | 南京理工大学 | Uprise the self-tightening face seals under the press strip spare |
| CN201696611U (en) * | 2010-06-10 | 2011-01-05 | 浙江超达阀门股份有限公司 | Pressure self-tightening sealing device |
| CN202109014U (en) * | 2011-05-31 | 2012-01-11 | 斯耐特(湖北)工业制造有限公司 | High performance hydrogen-contacting high pressure control valve |
| CN202612667U (en) * | 2012-05-16 | 2012-12-19 | 江苏万兴石油机械阀门有限公司 | Thermal-collected steam stop-rectifying valve |
Non-Patent Citations (1)
| Title |
|---|
| 胡旭晟等: "新型密封填料的应用", 《机械制造》, vol. 51, no. 7, 31 July 2013 (2013-07-31), pages 54 - 56 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117588582A (en) * | 2023-11-22 | 2024-02-23 | 山东泰展机电科技股份有限公司 | Valve core and valve body linkage type sealing structure suitable for distribution valve |
| CN117588582B (en) * | 2023-11-22 | 2024-05-03 | 山东泰展机电科技股份有限公司 | Valve core and valve body linkage type sealing structure suitable for distribution valve |
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Application publication date: 20140122 |
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| RJ01 | Rejection of invention patent application after publication |