CN201496576U - Sealing valve used under high dust environment - Google Patents
Sealing valve used under high dust environment Download PDFInfo
- Publication number
- CN201496576U CN201496576U CN2009202065768U CN200920206576U CN201496576U CN 201496576 U CN201496576 U CN 201496576U CN 2009202065768 U CN2009202065768 U CN 2009202065768U CN 200920206576 U CN200920206576 U CN 200920206576U CN 201496576 U CN201496576 U CN 201496576U
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- valve
- valve seat
- sealing
- valve plate
- gas
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing valve used under high dust environment. The sealing valve comprises a valve seat, a valve plate and a drive shaft, wherein the valve plate can rotate corresponding to the valve seat, a high-pressure airtight cavity is arranged on the valve seat, a valve seat sealing ring which is arranged in a circular ring is arranged on the contact face of the valve plate and the valve seat, and the high-pressure airtight cavity is communicated with a high-pressure sealing air inlet. Through arranging an air injection system on the contact face of the valve seat and the valve plate, the phenomenon of no accumulated dust in the valve and the valve plate can be guaranteed, and the reliability of sealing valve under dust environment is improved.
Description
Technical field
The utility model relates to a kind of seal valve, particularly relates to a kind of seal valve that is used to cut off furnace charge in the high temperature with high dust environment that the metallurgy industry ironmaking system uses.
Background technique
Present metallurgy industry, mainly there is following problem in the employed clock-type seal valve of blast furnace system particularly: the one, after material has been arranged, on valve and the surface that valve plate is contacted a large amount of dust or even small particles material are arranged, cause the process of valve seal smooth inadequately, sealing effect is bad; The 2nd, traditional seal valve, can not be worked under hot environment as sealing material with materials such as rubber; The 3rd, belong to rigid sealing for seal valve, sealing surface easily wearing and tearing causes sealing effect not good, the serious seal action that do not have.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of seal valve that can manipulate under high dust atmosphere, can effectively prevent valve, valve plate dust stratification, guarantees sealing effect.
The utility model adopts such technological scheme to realize, the seal valve that a kind of high dust atmosphere uses down, and it comprises valve seat, valve plate, valve plate can rotate relative to valve seat; It is characterized in that: described valve seat is provided with the airtight chamber of high pressure; The sealing surface that contacts with valve seat along valve plate is provided with the valve seat gas-tight ring that is the circular shape layout; Wherein the airtight chamber of high pressure communicates with the import of high pressure sealing gas.
Above-mentioned valve seat gas-tight ring circumference is provided with the ventilation pore.
The import of high pressure sealing gas, the airtight chamber of high pressure and valve seat gas-tight ring constitute gas spray of the present utility model and sweep system.
The utility model drives transmission shaft by transmission device and rotates, and transmission shaft adopts to be connected with valve plate and is articulated and connected, and when the transmission shaft forward rotation, drives valve plate and outwards stirs, and valve plate is lifted off a seat, and seal valve is opened; In like manner, when the transmission shaft backward rotation, near valve seat, close gradually by seal valve for valve plate.
When seal valve was closed, the sealing surfaces dust stratification in order to prevent to contact with valve seat because of valve plate influenced finishing smoothly of valve seal process, and the utility model guarantees the sealing effect of valve under high temperature, high dust in that the gas injection system is set on the valve seat.In the process of valve plate closure, high pressure sealing gas on the valve seat enters the airtight chamber of high pressure from high pressure air import winding-up, around the winding-up continuously of one week of valve seat back, after the ventilation pore continuous injection on the valve seat gas-tight ring circumference goes out ring-type high pressure draught band, this high pressure draught can be clean with the winding-up of the dust granules on the valve plate, strengthens the sealability of valve; Simultaneously, the high pressure draught that is produced can be blocked upper and lower sealing medium, guarantees the pressure difference of upper and lower sealing medium, avoids the poorly sealed reality that causes because of pressure change that the mutual channelling of upper and lower gas medium causes.
The utility model is swept system by the gas spray is set on valve seat, dust on valve plate, the contact surface of valve seat or small particles material spray are swept totally, has guaranteed that valve, valve plate do not have fouling phenomenon, can be at reliable sealing under the dust atmosphere.
Description of drawings
Fig. 1 is of the present utility model cuing open to view;
Fig. 2 is the utility model gas injection system structure diagram.
Among the figure, the 1-valve seat, the 2-valve plate, the 3-transmission shaft, the spray of 4-gas is swept system, the import of 4-1 high pressure air, the airtight chamber of 4-2 high pressure, 4-3 valve seat gas-tight ring, 5-transmission device, the last sealing medium of 6-, 7-lower seal medium.
Embodiment
With reference to the accompanying drawings the utility model is described further, but the utility model not only is confined to this.
Embodiment, the seal valve that a kind of high dust atmosphere uses down, it comprises valve seat 1, valve plate 2; Valve plate 2 can rotate relative to valve seat 1; Valve plate 2 is connected with transmission shaft 3 by connecting ball pivot; On valve seat 1 and sealing surface that valve plate 2 combines, be provided with the gas spray and sweep system 4; This system comprises the airtight chamber 4-2 of the high pressure that is located on the valve seat 1, and the sealing surface that contacts with valve seat along valve plate is provided with the valve seat gas-tight ring 4-3 that is the circular shape layout; The high pressure air import 4-1 that communicates with the airtight chamber of high pressure; Wherein on valve seat gas-tight ring 4-3 circumference, be provided with the ventilation pore.
Valve plate 2 is connected with transmission shaft 3 by connecting ball pivot.During work, transmission device 5 drives transmission shaft 3 forward rotation, and transmission shaft 3 drives valve plate 2 and outwards stirs, and valve plate 2 lifts off a seat 1, and seal valve is opened; During transmission shaft 3 backward rotation, near valve seat 1, close gradually by seal valve for valve plate 2.In the process that seal valve is closed, system's 4 work are swept in the gas spray that is arranged on the valve seat 1, high pressure sealing gas enters the airtight chamber 4-2 of high pressure from high pressure air import 4-1 winding-up, after going up the ventilation pore continuous injection of circumference, valve seat gas-tight ring 4-3 goes out the annular flow band around 2 one weeks of valve seat, act on the contact surface of valve seat 1 and valve plate 2, the winding-up of dust granules on the valve plate 2 is clean, improve the sealability of valve, simultaneously, the high pressure draught that is produced is blocked upper and lower sealing medium 6,7, guarantee the pressure difference of upper- lower seal medium 6,7, make valve seal more tight.
Claims (3)
1. the seal valve that uses down of a high dust atmosphere, it comprises valve seat (1), valve plate (2), valve plate (2) can rotate relative to valve seat (1); It is characterized in that: on valve seat (1) and sealing surface that valve plate (2) combines, be provided with the gas spray and sweep system (4).
2. the seal valve that high dust atmosphere as claimed in claim 1 uses down is characterized in that: described gas spray is swept system (4) and be provided with the airtight chamber of high pressure (4-2) on valve seat (1); Along on valve plate (2) and the sealing surface that valve seat (1) contacts, be provided with and be the valve seat gas-tight ring (4-3) that circular shape is arranged; Wherein, the airtight chamber of high pressure (4-2) communicates with high pressure sealing gas import (4-1).
3. the seal valve that high dust atmosphere as claimed in claim 2 uses down, it is characterized in that: valve seat gas-tight ring (4-3) circumference is provided with the ventilation pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202065768U CN201496576U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high dust environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202065768U CN201496576U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high dust environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496576U true CN201496576U (en) | 2010-06-02 |
Family
ID=42439783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202065768U Expired - Fee Related CN201496576U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high dust environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042417A (en) * | 2010-12-31 | 2011-05-04 | 利民化工股份有限公司 | Powder sealing valve |
| CN103742654A (en) * | 2014-01-20 | 2014-04-23 | 河南龙成煤高效技术应用有限公司 | Gas sealing valve used for high-temperature high-dust-content environment |
| CN106693437A (en) * | 2017-01-19 | 2017-05-24 | 张家港市新贝机械有限公司 | Valve device of dehumidifying and crystallizing system |
-
2009
- 2009-09-30 CN CN2009202065768U patent/CN201496576U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042417A (en) * | 2010-12-31 | 2011-05-04 | 利民化工股份有限公司 | Powder sealing valve |
| CN103742654A (en) * | 2014-01-20 | 2014-04-23 | 河南龙成煤高效技术应用有限公司 | Gas sealing valve used for high-temperature high-dust-content environment |
| CN103742654B (en) * | 2014-01-20 | 2016-08-17 | 河南龙成煤高效技术应用有限公司 | A kind of gas sealing valve for high temperature with high dust content environment |
| CN106693437A (en) * | 2017-01-19 | 2017-05-24 | 张家港市新贝机械有限公司 | Valve device of dehumidifying and crystallizing system |
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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: 20100602 Termination date: 20180930 |