CN101525676B - Oscillating bar crank isolating valve - Google Patents
Oscillating bar crank isolating valve Download PDFInfo
- Publication number
- CN101525676B CN101525676B CN2009100646855A CN200910064685A CN101525676B CN 101525676 B CN101525676 B CN 101525676B CN 2009100646855 A CN2009100646855 A CN 2009100646855A CN 200910064685 A CN200910064685 A CN 200910064685A CN 101525676 B CN101525676 B CN 101525676B
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- China
- Prior art keywords
- flashboard
- crank
- valve
- lever
- oscillating bar
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Abstract
The invention discloses an oscillating bar crank isolating valve, which comprises a valve body, a valve cover, a flashboard and a driving device. The opening and closing of the flashboard uses a crank oscillating bar structure which comprises a crank, a crank shaft, a lever and an oscillating bar; wherein, the crank, the lever and the crank shaft are fixedly connected; one end of the lever is connected with the oscillating bar by a hinge and the other end of the oscillating bar is connected with a flashboard shaft by the hinge. Guide pads used for rotating, opening and shutting are arranged at two sides of the flashboard. The valve body is correspondingly provided with a slide rail. The driving device moves to drive the crank and the lever to swing around the crank shaft and drive the oscillating rod to swing. The flashboard swings along the oscillating rod and upgrades, and the valve opens. The driving device returns stroke, and the valve closes. The flashboard has a rotation, opening and shutting process correspondingly to the valve body in the instant of opening and shutting while a flashboard guide rod and the guidance of the slide rail of the valve are rotatably matched, thus avoiding the occurrence of the deadlocking phenomenon of a wedge block of the flashboard. The valve has the advantages of good sealing property and long service life of the flashboard, small volume, light weight, operational safety and moderate cost and the like of a butterfly valve and can be suitable for parting off working condition of middle and low temperature medium in blast furnace ironmaking.
Description
Technical field
The present invention relates to the trip valve that a kind of blast-furnace smelting is used, especially a kind of oscillating bar crank isolating valve.
Background technology
In the iron-smelting blast furnace hot blast stove system, use a large amount of in, low temperature cutting-off valve such as cold blast valve, combustion air trip valve, gas stop valve and chimney valve etc., mostly the conventional valves product is the wedge-type slide valve, the slide valve good sealing effect, long service life, but shortcoming is the structure heaviness, and installing space is big, the cost height.The cut-out butterfly valve had appearred in for a change this situation afterwards, and volume is little, and is in light weight, but sealing property and life-span are undesirable.The nineties in last century, a kind of crank cut-off valve has appearred on the market, as " shut off gas valve " that Chinese patent CN2197531Y announces, this valve has the structure and the sealing property of gate valve, and top need not be provided with gear frame, be interior drive mechanism, but the interior drive mechanism of this valve has critical defect, and along the track translational motion, temperature influence is bigger after closing by the crank block structure for flashboard, it is stuck easily to open moment, influences normal smelting operation.For this reason, develop that a kind of volume is little, in light weight, good seal performance, service-strong cutting-off valve be very necessary.
Summary of the invention
In order to solve the above-mentioned technical problem that the system for blast furnace ironmaking cutting-off valve exists, a kind of oscillating bar crank isolating valve is provided hereby, can avoid the interior transmission of valve to open the stuck phenomenon of easy appearance of moment, guarantee normal smelting operation, and can adapt to cryogenic media cut-out operating mode in the blast furnace ironmaking.
The technical solution adopted in the present invention is:
This crank cut-off valve comprises valve body, valve gap, flashboard and drive unit.
The crank-rocker mechanism transmission is adopted in the keying of described flashboard, crank-rocker mechanism comprises the fork of crank, crank axle, lever and lifting flashboard, crank, lever are fixedlyed connected with crank axle, and lever one end is connected with the fork hinge, and the fork the other end is connected with the flashboard axis hinge.Described drive unit is arranged on the valve gap place, by drive unit driving crank swing-bar mechanism.In described flashboard both sides the orienting lug of using for the rotation folding is set, correspondence is provided with slideway on the described valve body.
Described lever and fork hinged place and fork and flashboard hinged place all are equipped with white and moist sliding lining.
That described drive unit can adopt is electronic, surge, pneumatic or hand gear.
The drive unit action, driving crank and lever swings around crank axle, drive the fork swing and the lifting that are connected with lever hinge, drive with the hinged flashboard of fork thereupon and swing and be raised, can avoid flashboard voussoir stuck phenomenon because the corresponding slideway on set orienting lug of flashboard and the valve body cooperates in the guiding rotation of opening moment, valve is opened immediately slowly; Drive unit backhaul, valve closes moment flashboard orienting lug and valve body slideway can produce the guiding rotation equally and cooperate, and valve is safe thereupon closes.
This oscillating rod type crank cut-off valve, rational in infrastructure, flashboard has certain rotation moving process at the relative valve body with turn-off transient of valve opening, has avoided original flashboard voussoir stuck phenomenon to take place, and the valve switch reliable in action can keep the sealing property of trim for a long time.
This crank cut-off valve collection Gate-valve sealing performance is good, the life-span is long, and advantages such as the butterfly valve volume is little, in light weight, it is reliable to use, moderate cost, can adapt to cryogenic media cut-out operating mode in the system for blast furnace ironmaking.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is that flashboard orienting lug and valve body slideway cooperate part sectioned view.
Embodiment
Introduce embodiments of the invention below in conjunction with accompanying drawing.
As shown in Figure 1: this crank cut-off valve comprises valve body 1, valve gap 3, flashboard 2 and fluid pressure drive device 4.
The headstock gear of flashboard 2 is crank-rocker mechanisms, crank-rocker mechanism comprises crank 5, crank axle 6, lever 7 and fork 8, crank 5, lever 7 adopt key to fixedly connected with crank axle 6, and lever 7 one ends are connected with fork 8 hinges, and fork 8 the other ends are connected with the pivot hinge of flashboard 2.Above-mentioned two hinged places all are equipped with self-lubricating lining 10.Drive unit 4 is arranged on valve gap 3 places.Respectively with one section orienting lug 11 that supplies the rotation folding to use, correspondence is provided with slideway 9 on the valve body in flashboard 2 both sides.This flashboard 2 is monoblock casting with the orienting lug 11 of its both sides, also can adopt split mechanically coupled together.
Shown in Figure 2 is the partial schematic diagram that slideway 9 set on set orienting lug 11 in flashboard 2 both sides and the valve body 1 cooperates.Because flashboard 2 has certain rotation moving process at the relative valve body 1 with turn-off transient of valve opening, the guiding of flashboard orienting lug 11 and valve body slideway 9 cooperates the generation of then having avoided original flashboard voussoir stuck phenomenon.
The fluid pressure drive device 4 drive cranks 5 and lever 7 transmissions of oscillating bar crank isolating valve, thus drive fork 8 swings and lifting, drive flashboard 2 thereupon and swing and be raised, realized the breakdown action of flashboard 2; Fluid pressure drive device 4 backhauls, flashboard 2 promptly is closed.
Claims (4)
1. the oscillating bar crank isolating valve used of a blast-furnace smelting, comprise valve body, valve gap, flashboard and drive unit, the crank-rocker mechanism transmission is adopted in the keying of described flashboard, crank-rocker mechanism comprises crank, crank axle, lever and fork, crank, lever are fixedlyed connected with crank axle, lever one end is connected with the fork hinge, the fork the other end is connected with the flashboard axis hinge, by drive unit driving crank swing-bar mechanism, it is characterized in that: the orienting lug of using for the rotation folding is set in described flashboard both sides, and correspondence is provided with slideway on the described valve body.
2. oscillating bar crank isolating valve according to claim 1 is characterized in that: the orienting lug that described flashboard both sides are provided with is respectively two sections, and orienting lug and flashboard are monoblock casting or connect for split machinery.
3. oscillating bar crank isolating valve according to claim 1 is characterized in that: described lever and fork hinged place and fork and flashboard hinged place all are equipped with the self-lubricating lining.
4. oscillating bar crank isolating valve according to claim 1 is characterized in that: described drive unit is arranged on the valve gap place, for electronic, surge, pneumatic or hand gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100646855A CN101525676B (en) | 2009-04-21 | 2009-04-21 | Oscillating bar crank isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100646855A CN101525676B (en) | 2009-04-21 | 2009-04-21 | Oscillating bar crank isolating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101525676A CN101525676A (en) | 2009-09-09 |
| CN101525676B true CN101525676B (en) | 2011-01-05 |
Family
ID=41093745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100646855A Active CN101525676B (en) | 2009-04-21 | 2009-04-21 | Oscillating bar crank isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101525676B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313068A (en) * | 2011-08-04 | 2012-01-11 | 中冶南方工程技术有限公司 | Sealing valve in bellless top equipment of blast furnace |
| US20180223758A1 (en) * | 2017-02-08 | 2018-08-09 | Caterpillar Inc. | Machine system having fluid shutoff valve, and method |
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2009
- 2009-04-21 CN CN2009100646855A patent/CN101525676B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101525676A (en) | 2009-09-09 |
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