CN203431186U - Gas blow-off valve - Google Patents
Gas blow-off valve Download PDFInfo
- Publication number
- CN203431186U CN203431186U CN201320447547.7U CN201320447547U CN203431186U CN 203431186 U CN203431186 U CN 203431186U CN 201320447547 U CN201320447547 U CN 201320447547U CN 203431186 U CN203431186 U CN 203431186U
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- CN
- China
- Prior art keywords
- valve
- taper
- draught excluder
- diffusion
- coal gas
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Abstract
The utility model relates to a gas blow-off valve. The gas blow-off valve comprises a valve body and a conical closing valve, wherein the valve body is provided with a gas blow-off inlet and a gas blow-off outlet; the gas blow-off inlet is positioned on the lower part of the valve body; the conical closing valve is arranged outside the gas blow-off inlet and is connected with a transmission device; the transmission device works to drive the conical closing valve to move up and down; when the conical closing valve moves upwards, the blow-off valve is closed; when the conical closing valve moves downwards, the blow-off valve is opened; the transmission device comprises a driving device and a gear; the conical closing valve is fixedly arranged on the gear; the driving device drives the gear to rotate so as to drive the conical closing valve to move up and down. The gas blow-off valve is suitable for high-pressure operation, and the opening and closing of the blow-off valve are reliable and stable, so that the service performance of the blow-off valve is increased.
Description
Technical field
The utility model relates to a kind of valving, relates in particular to a kind of gas bleeding valve using in iron and steel enterprise's blast furnace gas system, belongs to valve technology field.
Background technique
In blast furnace ironmaking production process, produce a large amount of dust-laden coal gas, dust concentration is high, and particle size is large and hard.According to iron-smelting process and security needs, in the time of before the each blow-on of blast furnace, blowing out, maintenance and accident condition damping down, all need dust-laden coal gas to diffuse, coal gas diffusion need to complete by gas bleeding valve, to can rapidly dust-laden coal gas be entered in atmosphere.As Chinese utility model patent < < gas bleeding valve > >, application number is 201020193066.4, notice of authorization number is CN201723728U, a kind of gas bleeding valve is disclosed, comprise valve body 1, valve body 1 is provided with coal gas diffusion valve inlet 2 and coal gas diffusion valve outlet port 3, valve body 1 top is provided with pulley bracket 4, pulley 5 is connected with pulley bracket 4, the tapered end of taper draught excluder 6 and valve body 1 laminating, one end of stay cord 7 is walked around pulley 5 and is connected with the other end of taper draught excluder 6, when pull-up stay cord 7, stay cord 7 drives taper draught excluder 6 to move upward, open diffusion valve, carry out coal gas diffusion, diffuse after end, put down stay cord 7, taper draught excluder 6 moves downward, cut off coal gas diffusion passage, close diffusion valve, it has adopted cone sealing configuration, good sealing effect, solved the problem that traditional coal gas diffusion easily causes gas leakage.But, such gas bleeding valve, airflow direction is contrary with taper draught excluder closing direction, and opening direction is consistent with airflow direction, work as overpressure, can make diffusion valve automatically open, cause gas leakage, cause pollution of atmosphere, also easy initiation fire, is therefore unsuitable for operation with high pressure; Meanwhile, the open and close of diffusion valve are by pulling stay cord to realize, and stay cord is fragile, and such mode causes the open and close of diffusion valve unreliable, and poor stability has affected the usability of diffusion valve.
Model utility content
The utility model object is that a kind of operation with high pressure and reliable, stable gas bleeding valve of diffusion valve open and close of being applicable to is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of gas bleeding valve, comprise valve body and taper draught excluder, described valve body is provided with coal gas diffusion entrance and coal gas diffusion outlet, described coal gas diffusion entrance is positioned at valve body lower portion, and described taper draught excluder is arranged on outside coal gas diffusion entrance; Described taper draught excluder is connected with transmission device; Described transmission device work, drives taper draught excluder to move up and down; When described taper draught excluder moves upward, close diffusion valve; When described taper draught excluder moves downward, open diffusion valve; Described transmission device comprises drive unit and gear; Described taper draught excluder is fixed on gear; Described drive unit actuation gear rotates, and drives taper draught excluder to move up and down.
Preferably, described drive unit drives and comprises base, tooth bar and cylinder; Described base is provided with the tooth bar that can move along base substantially horizontal; Described rack and pinion matches; On described base, be also provided with cylinder; Described tooth bar is connected with Telescopic-cylinder bar.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Gas bleeding valve of the present utility model, because airflow direction is identical with taper draught excluder closing direction, and opening direction is contrary with airflow direction, even during overpressure, can not make diffusion valve automatically open yet, avoided leakage and the pollution of atmosphere of coal gas, the generation of having stopped fire, is therefore suitable for operation with high pressure; , by drive unit actuation gear, rotate meanwhile, drive taper draught excluder to move up and down, thereby realize the open and close of diffusion valve, make the open and close of diffusion valve reliable, stablize, increased the usability of diffusion valve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The structural representation of the gas bleeding valve that accompanying drawing 1 is prior art;
Structural representation when accompanying drawing 2 is gas bleeding valve unlatching of the present utility model;
Structural representation when accompanying drawing 3 is closed for gas bleeding valve of the present utility model
Wherein: 1, valve body; 2, diffusion valve entrance; 3, diffusion valve outlet; 4, pulley bracket; 5, pulley; 6, taper draught excluder; 7, stay cord; 8, transmission device; 9, gear; 10, base; 11, tooth bar; 12, cylinder; 13, flexible rod.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Described in the utility model a kind of gas bleeding valve as shown in accompanying drawing 2,3, comprise valve body 1 and taper draught excluder 6, described valve body 1 is provided with coal gas diffusion entrance 2 and coal gas diffusion outlet 3, described coal gas diffusion entrance 3 is positioned at valve body 1 bottom, and described taper draught excluder 6 is arranged on outside coal gas diffusion entrance 3; Described taper draught excluder 6 is connected with transmission device 8; Described transmission device 8 work, drive taper draught excluder 6 to move up and down; When described taper draught excluder 6 moves upward, close diffusion valve; When described taper draught excluder 6 moves downward, open diffusion valve; Described transmission device 8 comprises drive unit and gear 9; Described taper draught excluder 6 is fixed on gear 9; Described drive unit actuation gear 9 rotates, and drives taper draught excluder 6 to move up and down; Described drive unit drives and comprises base 10, tooth bar 11 and cylinder 12; Described base 10 is provided with the tooth bar 11 that can move along base 10 substantially horizontals; Described tooth bar 11 matches with gear 9; On described base 10, be also provided with cylinder 12; Described tooth bar 11 is connected with cylinder 12 flexible rods 13.
Described in the utility model a kind of gas bleeding valve as shown in accompanying drawing 2,3, while closing, the flexible rod 13 of cylinder 12 is in stretching out state.When gas bleeding valve need to be opened, the flexible rod 13 of cylinder 12 shrinks, and band carry-over bar 11 moves, and driven gear 9 rotates, thereby drives taper draught excluder 6 to move downward, and opens diffusion valve; When gas bleeding valve need to be closed, the flexible rod 13 of cylinder 12 stretches out, and band carry-over bar 11 moves, and driven gear 9 rotates, thereby drives taper draught excluder 6 to move upward, and closes diffusion valve.
Gas bleeding valve of the present utility model, because airflow direction is identical with taper draught excluder closing direction, and opening direction is contrary with airflow direction, even during overpressure, can not make diffusion valve automatically open yet, avoided leakage and the pollution of atmosphere of coal gas, the generation of having stopped fire, is therefore suitable for operation with high pressure; The open and close of diffusion valve are reliable, stable, increased the usability of diffusion valve.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (2)
1. a gas bleeding valve, comprises valve body and taper draught excluder, and described valve body is provided with coal gas diffusion entrance and coal gas diffusion outlet, and described coal gas diffusion entrance is positioned at valve body lower portion, it is characterized in that: described taper draught excluder is arranged on outside coal gas diffusion entrance; Described taper draught excluder is connected with transmission device; Described transmission device work, drives taper draught excluder to move up and down; When described taper draught excluder moves upward, close diffusion valve; When described taper draught excluder moves downward, open diffusion valve; Described transmission device comprises drive unit and gear; Described taper draught excluder is fixed on gear; Described drive unit actuation gear rotates, and drives taper draught excluder to move up and down.
2. gas bleeding valve according to claim 1, is characterized in that: described drive unit drives and comprises base, tooth bar and cylinder; Described base is provided with the tooth bar that can move along base substantially horizontal; Described rack and pinion matches; On described base, be also provided with cylinder; Described tooth bar is connected with Telescopic-cylinder bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447547.7U CN203431186U (en) | 2013-07-25 | 2013-07-25 | Gas blow-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447547.7U CN203431186U (en) | 2013-07-25 | 2013-07-25 | Gas blow-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431186U true CN203431186U (en) | 2014-02-12 |
Family
ID=50060224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447547.7U Expired - Fee Related CN203431186U (en) | 2013-07-25 | 2013-07-25 | Gas blow-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116621663A (en) * | 2023-07-11 | 2023-08-22 | 福建海峡科化股份有限公司 | Device and method for transferring reworked powder of expanded explosive |
-
2013
- 2013-07-25 CN CN201320447547.7U patent/CN203431186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116621663A (en) * | 2023-07-11 | 2023-08-22 | 福建海峡科化股份有限公司 | Device and method for transferring reworked powder of expanded explosive |
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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 |
Granted publication date: 20140212 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |