CN211059367U

CN211059367U - Zero-leakage hard seal poker valve

Info

Publication number: CN211059367U
Application number: CN201922093321.1U
Authority: CN
Inventors: 吴磊; 周述华; 李晓东; 周亦军
Original assignee: Jiangsu Lvjing Environmental Prot Equipment Co ltd
Current assignee: Jiangsu Lvjing Environmental Prot Equipment Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-07-21
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a zero-leakage hard seal poker valve, which comprises a double-layer valve seat consisting of an inner valve seat and an outer valve seat, a valve plate, a gas seal device, a sealing device and a valve plate driving device, wherein the outer valve seat is annularly arranged at the periphery of the inner valve seat, a hollow cavity is formed between the outer valve seat and the inner valve seat, and the gas seal device is connected with the hollow cavity and is used for inputting high-pressure gas into the hollow cavity; the valve plate is vertically formed on the right side of the double-layer valve seat, the double-layer valve seat is opened and closed through the valve plate driving device, and the left side of the double-layer valve seat is fixedly connected with the furnace body; when the valve plate is opened, the sealing device is used for sealing the hollow cavity to prevent high-pressure gas from flowing out. Implement the utility model discloses a hard seal poker valve, the valve plate is steady with the closed action with opening of double-deck disk seat, and the valve plate does not have the condition of gas leakage with the closure of double-deck disk seat under high-pressure gas seal, has improved the leakproofness of poker valve.

Description

Zero-leakage hard seal poker valve

Technical Field

The utility model relates to a waste treatment equipment accessory technical field, more specifically relate to a zero sealed poker valve that leaks.

Background

In the environmental protection equipment manufacturing industry, a plurality of waste treatment equipment are provided with a special control valve for gas inlet or gas outlet so as to ensure that the gas can be reliably cut off or controlled. Generally, the valve comprises a hard sealing structure and a soft sealing structure, and because the temperature of flue gas treated by an incineration method is high, a sealing strip adopting the soft sealing structure is easy to age, corrode or damage, and the use or maintenance rate of the valve is seriously influenced.

The hard sealing valve with the existing structure generally comprises a valve seat, a valve plate, a guide rod and a valve rod, wherein the valve plate is connected with the valve rod, and the valve plate and the valve seat are driven to open and close by driving the reciprocating motion of the valve rod through a driving device. The hard sealing valve in the prior art has the risks that the valve plate is not closed stably, gas leaks in the joint of the valve plate and the valve seat, and the valve plate falls off due to uneven stress of the guide rod, so that the sealing performance and the normal use of the valve are seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a zero-leakage hard seal poker valve.

The utility model discloses the technological effect that will reach is realized through following scheme: a zero-leakage hard seal poker valve comprises a double-layer valve seat consisting of an inner valve seat and an outer valve seat, a valve plate, an air seal device, a sealing device and a valve plate driving device, wherein the outer valve seat is annularly arranged on the periphery of the inner valve seat, a hollow cavity is formed between the outer valve seat and the inner valve seat, and the air seal device is communicated with the hollow cavity and is used for inputting high-pressure gas into the hollow cavity; the valve plate is vertically formed on the right side of the double-layer valve seat, the double-layer valve seat is opened and closed through the valve plate driving device, and the left side of the double-layer valve seat is fixedly connected with the furnace body; when the valve plate is opened, the sealing device is used for sealing the hollow cavity to prevent high-pressure gas from flowing out.

Preferably, the sealing device comprises a first ring plate, a second ring plate and a plurality of intermediate connecting rods for connecting the first ring plate and the second ring plate, wherein the first ring plate is formed in the hollow cavity; the valve plate is formed between the first annular plate and the second annular plate, the outer diameter of the valve plate is larger than that of the second annular plate, and the middle connecting rod penetrates through the valve plate in a sliding mode.

Preferably, the first annular plate is further fixedly connected with a top block, and the top block is used for enabling the valve plate to be in top connection with the top block and driving the top block to move leftwards when the valve plate is closed, so that the first annular plate moves leftwards to the left side of the through hole.

Preferably, the gas seal device comprises a pipeline connected with an outer valve seat, and the outer valve seat is provided with a through hole at a position corresponding to the pipeline.

Preferably, the valve plate driving device comprises a driving assembly and a valve rod, the left end of the valve rod is fixedly connected with the valve plate, and the right end of the valve rod is fixedly connected with the driving assembly.

Preferably, the valve plate driving device further comprises a support frame and a guide rod, the support frame is formed below the valve rod and used for supporting the valve rod, and the guide rod is parallel to the valve rod and penetrates through the valve plate.

Preferably, the valve plate includes apron and reinforcing plate, the apron is close to the right side setting of double-deck disk seat, the right side at the apron is fixed in the reinforcing plate laminating.

Preferably, the cover plate and the reinforcing plate are both made of steel plates.

Preferably, the cover plate has a thickness of 3mm, and the reinforcing plate has a thickness of 10 mm.

The utility model has the advantages of it is following:

1. the opening and closing actions of the valve plate and the double-layer valve seat of the poker card valve are stable, and the closing of the valve plate and the double-layer valve seat has no gas leakage under the high-pressure gas seal, so that the sealing property of the poker valve is improved;

2. the utility model discloses a sealing device borrows the removal that the valve plate was removed and is driven the removal of first crown plate and realize blocking and circulating of high-pressure gas, cuts off high-pressure gas with automatic valve and compares, simple structure, and the cost of manufacture is low.

Drawings

FIG. 1 is a schematic view of a zero-leakage hard seal poker valve of the present invention in a closed position;

FIG. 2 is a schematic view of the open state of a zero-leakage hard seal poker valve of the present invention;

fig. 3 is a schematic perspective view of a zero-leakage hard seal poker valve according to the present invention (the valve plate driving assembly is omitted).

Detailed Description

The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

With reference to fig. 1 to 3, an embodiment of the present invention provides a zero-leakage hard seal poker valve, including a double-layer valve seat, a valve plate 300, an air sealing device 400, a sealing device 500 and a valve plate driving device 600, which are composed of an inner valve seat 100 and an outer valve seat 200, wherein the outer valve seat 200 is annularly disposed at the periphery of the inner valve seat 100 and a hollow cavity 700 is formed between the outer valve seat 200 and the inner valve seat 100, the air sealing device 400 is communicated with the hollow cavity 700 to input high-pressure gas into the hollow cavity 700, so as to form effective sealing for the gas in the inner valve seat 100. The valve plate 300 is vertically formed on the right side of the double-layer valve seat and is opened and closed by the valve plate driving device 600, and the left side of the double-layer valve seat is fixedly connected with the furnace body, for example, welded and fixed. The sealing device 500 serves to seal the hollow cavity 700 from the outflow of high-pressure gas when the valve plate 300 is opened.

The utility model discloses in, interior disk seat 100 and outer disk seat 200 are preferably the cylinder, with the axle center setting, control the opening and supply the gas circulation, hollow cavity 700 is then the ring form. Valve plate 300 includes apron 310 and reinforcing plate 320, the right side setting that apron 310 is close to double-deck disk seat plays the lid and closes or open double-deck disk seat effect, the effect of reinforcing plate 310 intensity is played on the right side of apron 310 in the laminating of reinforcing plate 320, and further, the material of apron 310 and reinforcing plate 320 is the steel sheet, the thickness of apron 310 is 3mm, the thickness of reinforcing plate 320 is 10mm, apron 310 and reinforcing plate 320 can be fixed through bolted connection, but not limited to this.

The valve plate driving device 600 comprises a driving assembly 610 and a valve rod 620, the left end of the valve rod 620 is fixedly connected with the valve plate 300, the right end of the valve rod 620 is fixedly connected with the driving assembly 610, and the driving assembly 610 drives the valve rod 620 to reciprocate left and right to further drive the valve plate 300 to open and close. The driving assembly 610 may be a pneumatic cylinder or a hydraulic cylinder, but is not limited thereto. In order to ensure stable movement of the valve rod 620 and the valve plate 300, the valve plate driving apparatus 600 further includes a support frame 630 formed below the valve rod 620 to support the valve rod 620, and a guide rod 640 disposed in parallel with the valve rod 620 and penetrating the valve plate 300 to stably move the valve plate 300 along the guide rod 640. Specifically, the left end of the guide rod 640 is fixedly connected with the furnace body, and the right end of the guide rod 640 is fixedly connected with the support frame 630. Preferably, the valve rod 620 and the guide rod 640 are both horizontally disposed, and the valve plate 300 is vertically disposed.

The gas sealing device 400 comprises a pipeline 410 connected with an outer valve seat 200, the outer valve seat 200 is provided with a through hole 210 at a position corresponding to the pipeline 410, and the gas sealing device 400 is used for forming high-pressure air and conveying the high-pressure air into the hollow cavity 700 through the pipeline 410 and the through hole 210. When valve plate 300 and the laminating of double-deck disk seat are closed, because be the rigid connection, there is the gap between valve plate 300 and the double-deck disk seat, when high-pressure gas was full of hollow cavity 700, high-pressure gas can blow in the gap always, and high-pressure gas's pressure is greater than the gas pressure of valve plate 300 inside and outside, just so can effectively prevent that the gas in interior disk seat 100 from leaking, plays sealed effect.

The sealing device 500 comprises a first annular plate 510, a second annular plate 520 and a plurality of intermediate connecting rods 530 connecting the first annular plate 510 and the second annular plate 520, wherein the first annular plate 510 is formed in the hollow cavity 700 and can block the leakage of high-pressure gas when the valve plate 300 is opened. The valve plate 300 is formed between the first ring plate 510 and the second ring plate 520 and the outer diameter of the valve plate 300 is larger than that of the second ring plate 520, and the intermediate connecting rod 530 is slidably disposed through the valve plate 300. When the valve plate 300 is opened, the valve plate 300 moves towards the second ring plate 520 to the right and drives the second ring plate 520 to move to the right, so that the first ring plate 510 moves to the right of the through hole 210 to block the high-pressure gas from flowing out, and thus, the sufficient high-pressure gas flow of other closed poker valves can be ensured. The first ring plate 510 and the second ring plate 520 are vertically arranged to enable the first ring plate 510 and the second ring plate 520 to be parallel to the valve plate 300, and the middle connecting rods 530 are distributed in an annular array mode to enable the first ring plate 510, the second ring plate 520 and the valve plate 300 to move left and right stably.

As a further improvement of the embodiment of the present invention, the first ring plate 510 is further fixedly connected with a top block 540, the top block 540 is used for connecting the top block 540 to the valve plate 300 when the valve plate 300 is closed and driving the top block 540 to move left and then make the first ring plate 510 move left to the left side of the through hole 210, so that the high-pressure gas enters the hollow cavity 700 from the through hole 210 to continue to form the sealing function of the poker valve. It should be understood that the length of the top block 540 is set to ensure that the first ring plate 510 can move to the left of the through hole 210 when the valve plate 300 pushes the top block 540 to move to the left. The top block 540 may also act as a stop to prevent the first ring plate 510 from being pulled out of the hollow cavity 700. The top block 540 is preferably made of steel.

The utility model discloses a sealing device 500 borrows the removal of valve plate 300 and drives the removal of first crown plate 510 and realize blocking and the circulation of high-pressure gas, cuts off high-pressure gas with automatic valve and compares, simple structure, and the cost of manufacture is low.

The utility model discloses an opening of valve plate 300 and double-deck disk seat is steady with the closed action, and there is not the condition of gas leakage valve plate 300 and double-deck disk seat's closure under high-pressure gas seal, has improved the leakproofness of poker valve.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A zero-leakage hard seal poker valve is characterized by comprising a double-layer valve seat consisting of an inner valve seat and an outer valve seat, a valve plate, an air seal device, a sealing device and a valve plate driving device, wherein the outer valve seat is annularly arranged on the periphery of the inner valve seat, a hollow cavity is formed between the outer valve seat and the inner valve seat, and the air seal device is communicated with the hollow cavity and is used for inputting high-pressure gas into the hollow cavity; the valve plate is vertically formed on the right side of the double-layer valve seat, the double-layer valve seat is opened and closed through the valve plate driving device, and the left side of the double-layer valve seat is fixedly connected with the furnace body; when the valve plate is opened, the sealing device is used for sealing the hollow cavity to prevent high-pressure gas from flowing out.

2. A zero leak hard seal poker valve according to claim 1, wherein the sealing means includes a first ring plate, a second ring plate, and a plurality of intermediate connecting rods connecting the first ring plate and the second ring plate, the first ring plate being formed within the hollow cavity; the valve plate is formed between the first annular plate and the second annular plate, the outer diameter of the valve plate is larger than that of the second annular plate, and the middle connecting rod penetrates through the valve plate in a sliding mode.

3. A zero-leakage, hard-seal poker valve according to claim 2, wherein the first ring plate is further fixedly connected with a top block, and the top block is used for abutting against the valve plate and driving the top block to move leftwards when the valve plate is closed so as to enable the first ring plate to move leftwards to the left side of the through hole.

4. The zero-leakage hard seal poker valve according to claim 1, wherein the air sealing device includes a pipe connected to an outer valve seat, and the outer valve seat is provided with a through hole at a position corresponding to the pipe.

5. The zero-leakage, hard-seal poker valve of claim 1, wherein the valve plate drive means includes a drive assembly and a valve stem, a left end of the valve stem being fixedly connected to the valve plate, and a right end of the valve stem being fixedly connected to the drive assembly.

6. The zero-leakage hard seal poker valve of claim 5, wherein the valve plate driving device further comprises a support frame formed below the valve rod to support the valve rod, and a guide rod disposed parallel to the valve rod and penetrating the valve plate.

7. A zero-leak, hard-seal poker valve according to claim 1, wherein the valve plate includes a cover plate disposed adjacent to the right side of the double-layered valve seat and a reinforcing plate snugly secured to the right side of the cover plate.

8. A zero-leak hard seal poker valve according to claim 7, wherein the cover plate and the reinforcing plate are both made of steel.

9. A zero leak hard seal poker valve according to claim 7 or 8, wherein the cover plate is 3mm thick and the reinforcing plate is 10mm thick.