CN2609934Y - Blast furnace gas diffusion valve - Google Patents
Blast furnace gas diffusion valve Download PDFInfo
- Publication number
- CN2609934Y CN2609934Y CN 03244874 CN03244874U CN2609934Y CN 2609934 Y CN2609934 Y CN 2609934Y CN 03244874 CN03244874 CN 03244874 CN 03244874 U CN03244874 U CN 03244874U CN 2609934 Y CN2609934 Y CN 2609934Y
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- China
- Prior art keywords
- valve
- blast furnace
- spring
- valve gap
- furnace gas
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- Expired - Fee Related
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- Lift Valve (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a blast furnace gas bleeding valve with good sealing property and the basic structure comprises a valve body, a valve cover and a linkage retractable mechanism, wherein the valve cover is provided with an elastic hold-down mechanism and the linkage retractable arm is connected with the valve cover through the elastic hold-down mechanism. The utility model utilizes the dish-type spring as the hold-down spring, and a certain pretightening pressure contact is kept between the sealing surface of the valve cover and the sealing surface of the valve seat through the linkage mechanism and the hold-down spring. As the spring on the valve cover is arranged in the middle of the valve cover and no eccentric force inclining to the counter weight direction is left on the valve cover, thereby greatly enhancing the sealing property of the blast furnace, avoiding the valve damage caused by the gas leakage, and also prolonging the service life of the bleeding valve.
Description
Affiliated technical field
The utility model relates to a kind of blast furnace discharge equipment, is that a kind of blast furnace gas diffuses valve specifically, belongs to industrial valve technology field.
Background technology
It is the key part that coal gas does not leak when guaranteeing the blast furnace normal operation that blast furnace gas diffuses valve; During the blast furnace blowing-out, emission coal gas, the double as safety valve is used again simultaneously.Existing blast furnace diffuses valve and generally adopts the flip-shell structure, and valve gap contacts with the valve seat sphere, additional annular silicone rubber seal.For making valve gap and valve seat driving fit, adopt crank to hang counterweight, push down valve gap according to lever principle with pull bar.Because the center of counterweight gravity and valve gap center be not on same axis, make the eccentric force that has tendency counterweight direction on the valve gap, thereby valve gap is leaned forward, and said structure diffuse valve, because valve gap is connected with the direct rigidity of valve seat, therefore there is the gap, when blast furnace top pressure surpasses 80Kpa, coal gas will be from gap location to external leakage, can make the decrease in efficiency of blast furnace like this, simultaneously, the high velocity air that leaks is carrying particulate state dust secretly and valve gap-contact surface of valve seat produces powerful friction, make and diffuse valve sealing surface and very easily wear and tear, seriously reduce work-ing life.Though at valve gap and valve seat sphere contact position pile-up welding hard alloy layer, reduce wear to a certain extent, but still can not fundamentally address this problem.
Summary of the invention
Order of the present utility model be utilize be provided with that spring produces preliminary tension replace original counterweight, provide a kind of blast furnace gas of good seal performance to diffuse valve.
The technical solution of the utility model is achieved in that this blast furnace gas diffuses valve, basic structure comprises: valve body, valve gap, connecting rod open-and-close mechanism, it is that elastic compression mechanism is set on the valve gap that its characteristics are levied, and connecting rod folding arm is connected with valve gap by elastic compression mechanism.
The elastic compression mechanism that described blast furnace gas diffuses valve fixedlys connected with connecting rod folding arm, and floating with valve gap is connected.
The ball journal that the elastic compression mechanism that described blast furnace gas diffuses valve comprises and valve gap floats and is connected is installed in the spring on the ball journal, the other end of spring place be provided with on the connecting rod folding arm spring housing in.
Described blast furnace gas diffuses the ball journal of valve and the mode of connection of valve gap is installation sleeve and the bulb lid that ball journal is set on the valve gap.
The elastic compression mechanism that described blast furnace gas diffuses valve is that butterfly spring is arranged at valve gap and floats on the ball journal axle sleeve that is connected, and on the connecting rod folding arm spring housing is set, and spring places between sphero-cylindrical lens and the spring housing, and sphero-cylindrical lens and spring housing are connected.
Blast furnace gas of the present utility model diffuses valve, by linkage assembly valve gap and valve seat is kept in touch, and adopts butterfly spring as holddown spring, makes valve bonnet seal face and sealing surface of seat keep certain preload pressure by butterfly spring pressure.
The utility model utilizes the preliminary tension of spring to replace original counterweight, because the spring on the valve gap is positioned at valve gap central authorities, makes valve gap not have the eccentric force of tendency counterweight direction, and preliminary tension can regulate by spring, thereby reaches sealing effectiveness.Experiment shows, adopt the blast furnace of the technical program to diffuse valve, reach under the 160Kpa state in furnace top pressure and not leak, and the furnace roof design pressure is 120Kpa, therefore in normal operation, improved the sealing property of blast furnace greatly, also avoided having prolonged the work-ing life of diffusing valve because gas leak makes valve body impaired.
Sealing surface of seat of the present utility model contacts the conical contact into same angle with valve bonnet seal face, owing on the valve gap spring is installed, can guarantee that contact surface all can make valve gap and sealing-ring keep well contacting when the deformation that produces in various degree.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Among the figure: 1, oil cylinder 2, hinge 3, Rocker arm 4, rocker arm support 5, limited block 6, oil cylinder piston bar 7, hinge 8, connecting rod 9, valve body 10, folding arm 11, spring 12, spring press-cover 13, ball journal 14, valve gap 15, sphero- cylindrical lens 16,17, bulb installation sleeve 18, bulb lid 19, set nut
Embodiment
As shown in Figure 1, blast furnace gas diffuses the structure of valve and mainly is made up of valve body 9, valve gap 14, connecting rod open-and-close mechanism and elastic compression mechanism, wherein the connecting rod open-and-close mechanism comprises oil cylinder 1, oil cylinder piston bar 6, connecting rod 8, rocking arm 3 and folding arm 10, and folding power provides by oil cylinder.
The utility model elastic compression mechanism for implementing scheme is: between valve gap 14 and folding arm 10 hold-down mechanism is set, being connected to become of valve gap and hold-down mechanism is floated be connected and fixedly connected with the folding arm; Hold-down mechanism comprises spring housing and the holddown spring that is separately positioned on valve gap, the connecting rod folding arm, distortion by spring makes the valve gap 14 and the trim of valve body keep in touch and make it to keep certain pressure, to guarantee that rated pressure keeps sealing with bottom flange, surpass rated pressure valve gap is opened.
A kind of embodiment of the present utility model is that the ball journal 13 that floats and connect with it is set on the valve gap, sphero-cylindrical lens 15, folding arm 10 is provided with fixedly connected with it spring press-cover 12, butterfly spring 11 places between sphero-cylindrical lens 15 and the spring press-cover 12, the installation sleeve 16,17 of ball journal is set on the valve gap, with bulb lid 18, ball journal is connected by the universal joint form with valve gap.
Claims (5)
1, blast furnace gas diffuses valve, basic structure comprises: valve body (9), valve gap (14), connecting rod open-and-close mechanism (1,3,6,8,10), it is characterized in that on the valve gap (14) elastic compression mechanism being set, connecting rod folding arm (10) is connected with valve gap by elastic compression mechanism.
2, blast furnace gas according to claim 1 diffuses valve, it is characterized in that described elastic compression mechanism fixedlys connected with connecting rod folding arm (10), and floating with valve gap is connected.
3, blast furnace gas according to claim 1 diffuses valve, it is characterized in that the ball journal (13) that described elastic compression mechanism comprises and valve gap floats and is connected, be installed in the spring (11) on the ball journal, the other end of spring place be provided with on the connecting rod folding arm spring housing (12) in.
4, blast furnace gas according to claim 3 diffuses valve, and the mode of connection that it is characterized in that described ball journal and valve gap is installation sleeve (16,17) and the bulb lid (18) that ball journal is set on the valve gap.
5, blast furnace gas according to claim 1 and 2 diffuses valve, it is characterized in that described elastic compression mechanism is that butterfly spring is arranged at valve gap and floats on ball journal (13) axle sleeve (15) that is connected, spring housing (12) is set on the connecting rod folding arm (10), spring (11) places between sphero-cylindrical lens and the spring housing, and sphero-cylindrical lens and spring housing are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244874 CN2609934Y (en) | 2003-04-11 | 2003-04-11 | Blast furnace gas diffusion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244874 CN2609934Y (en) | 2003-04-11 | 2003-04-11 | Blast furnace gas diffusion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2609934Y true CN2609934Y (en) | 2004-04-07 |
Family
ID=34169307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03244874 Expired - Fee Related CN2609934Y (en) | 2003-04-11 | 2003-04-11 | Blast furnace gas diffusion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2609934Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333188A (en) * | 2015-10-31 | 2016-02-17 | 瑞安市阀门一厂 | Adjustable pressure release valve |
| CN105927783A (en) * | 2016-06-30 | 2016-09-07 | 重庆市山城燃气设备有限公司 | Self-cleaning pressure regulator |
-
2003
- 2003-04-11 CN CN 03244874 patent/CN2609934Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333188A (en) * | 2015-10-31 | 2016-02-17 | 瑞安市阀门一厂 | Adjustable pressure release valve |
| CN105927783A (en) * | 2016-06-30 | 2016-09-07 | 重庆市山城燃气设备有限公司 | Self-cleaning pressure regulator |
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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: 20040407 Termination date: 20110411 |