CN210830649U - High-temperature fireproof gas sealing valve - Google Patents

Abstract

The utility model relates to a technical field of valve, more specifically say, it relates to a high temperature fire prevention coal gas seal valve, and its technical scheme main points are: the converter valve comprises a valve body, wherein a sealing valve port is arranged on one side of the valve body, a hollow valve port pipeline is arranged at the sealing valve port, a hollow lining pipe is fixedly connected in the valve port pipeline, the valve port pipeline and the lining pipe are mutually detachable, and a fixing device connected with a converter pipeline is arranged on the outer wall of the valve port pipeline. The utility model has the advantages of simple structure, long service life and good sealing performance.

Description

High-temperature fireproof gas sealing valve

Technical Field

The utility model relates to a technical field of valve, more specifically say, it relates to a high temperature fire prevention coal gas seal valve.

Background

The valve is a control component with multiple functions of stopping, adjusting, guiding, preventing backflow or stabilizing pressure and the like, and is widely applied to various fields. The high-temperature fireproof gas sealing valve is applied to a converter feeding system of a steel plant and is matched with a nitrogen sealing valve, nitrogen can be filled in a feeding pipe to form an oxygen-free gas wall to separate furnace fire and high-temperature flue gas, however, when the charging procedure in the charging system of the converter is started at intervals, the high-temperature fireproof gas sealing valve and the nitrogen valve are opened, a certain amount of fire and high-temperature flue gas enter the high-temperature fireproof gas sealing valve, a large amount of dirt containing various mineral substances is formed in the pipeline of the sealing port of the high-temperature fireproof gas sealing valve which is long in time, the high-temperature fireproof gas sealing valve is damaged after a long time, and the service life of the high-temperature fireproof gas sealing valve is shortened, in addition, the high temperature can generate thermal expansion and cold contraction, so that the joint of the high-temperature fireproof coal gas sealing valve port and the converter pipeline expands to form a gap, and the sealing performance of the high-temperature fireproof coal gas sealing valve is greatly reduced.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a high temperature fire prevention coal gas seal valve has simple structure, long service life and the good advantage of leakproofness.

The above technical purpose of the present invention can be achieved by the following technical solutions: a high-temperature fireproof gas sealing valve comprises a valve body, wherein a sealing valve port is arranged on one side of the valve body, a hollow valve port pipeline is arranged at the sealing valve port, a hollow lining pipe is fixedly connected in the valve port pipeline, the valve port pipeline and the lining pipe are mutually detachable, and a fixing device connected with a converter pipeline is arranged on the outer wall of the valve port pipeline.

By adopting the technical scheme, the lining pipe is arranged at the sealing valve port, so that the dirt of various mineral substances is only accumulated on the lining pipe, and the lining pipe can be freely detached and cleaned, so that the valve port pipeline of the high-temperature fireproof gas sealing valve is kept clean and the dirt of various mineral substances is not accumulated, and the service life of the high-temperature fireproof gas sealing valve is prolonged; in addition, the fixing device is arranged on the outer wall of the valve port pipeline, so that a gap caused by expansion caused by thermal expansion and contraction caused by cold at the joint of the high-temperature fireproof coal gas sealing valve port and the converter pipeline can be prevented, and the sealing performance of the high-temperature fireproof coal gas sealing valve is greatly improved.

In one embodiment, the fixing device comprises a flange and fasteners, the flange is fixed on the outer wall of the valve port pipeline, and the flange is fixedly connected with at least two fasteners at equal intervals along the circumferential direction of the axis of the valve port pipeline.

Through adopting above-mentioned technical scheme, be connected with the converter pipeline through flange and fastener cooperation, fixed effect is better.

In one embodiment, the fastener comprises a fixed part and a rotating part, the fixed part is fixedly connected with the flange, and the rotating part is movably connected with the fixed part.

Through adopting above-mentioned technical scheme, it is more convenient to use, after the flange assembly, only need with the rotating member towards the flange axis direction rotation can accomplish with the fixed between the converter pipeline.

In one embodiment, a rotating shaft is arranged at the joint of the fixed part and the rotating part, and the fixed part is connected with the rotating part through the rotating shaft.

By adopting the technical scheme, the installation is more reliable.

In one embodiment, the end of the rotating member is provided with an adjusting bolt.

Through adopting above-mentioned technical scheme, the width of adjustable fastener, the installation is more firm.

In one embodiment, the inner wall of the valve port pipe is provided with internal threads, the outer wall of the lining pipe is provided with external threads corresponding to the internal threads, and the valve port pipe and the lining pipe are connected through threads.

Through adopting above-mentioned technical scheme, the installation is more firm, and makes things convenient for the dismouting.

To sum up, the utility model discloses following beneficial effect has:

firstly, the structure is simple;

secondly, the service life is long;

thirdly, the sealing performance is good.

Drawings

FIG. 1 is a schematic structural view of a high-temperature fireproof gas sealing valve of the present embodiment;

fig. 2 is an enlarged view at a in fig. 1.

In the figure: 1. a valve body; 2. sealing the valve port; 3. a valve port conduit; 4. a liner tube; 5. an internal thread; 6. an external thread; 7. a flange; 8. a fastener; 81. a fixing member; 82. a rotating member; 9. a rotating shaft; 10. and adjusting the bolt.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, a high-temperature fire-proof gas sealing valve comprises avalve body 1, asealing valve port 2 is arranged on one side of thevalve body 1, a hollowvalve port pipeline 3 is arranged at thesealing valve port 2, ahollow lining pipe 4 is fixedly connected in thevalve port pipeline 3, thevalve port pipeline 3 and thelining pipe 4 are mutually detachable, and a fixing device connected with a converter pipeline is arranged at the outer wall of thevalve port pipeline 3.

Specifically, fixing device includesflange 7,fastener 8, andflange 7 is fixed in 3 outer walls of valve port pipeline, andflange 7 is along the even interval fixed connection of axis circumference of pipeline two at leastfasteners 8.

Specifically, thefastener 8 includes afixing member 81 and a rotatingmember 82, thefixing member 81 is fixedly connected to theflange 7, and the rotatingmember 82 is movably connected to thefixing member 81.

Specifically, a rotatingshaft 9 is provided at the joint of the fixedmember 81 and the rotatingmember 82, and the fixedmember 81 is connected to the rotatingmember 82 through the rotatingshaft 9.

Specifically, the end of the rotatingmember 82 is provided with the adjustingbolt 10.

Specifically, the inner wall of thevalve port pipeline 3 is provided with aninternal thread 5, the outer wall of thelining pipe 4 is provided with anexternal thread 6 corresponding to theinternal thread 5, and thevalve port pipeline 3 is in threaded connection with thelining pipe 4.

The implementation principle of the embodiment is as follows: thevalve port pipeline 3 and thelining pipe 4 are arranged at thesealing valve port 2, thevalve port pipeline 3 and thelining pipe 4 are connected through threads, so that dirt of various mineral substances is accumulated only on thelining pipe 4, thelining pipe 4 can be freely detached and cleaned, thevalve port pipeline 3 of the high-temperature fireproof gas sealing valve is kept clean, dirt of various mineral substances is not accumulated, and the service life of the high-temperature fireproof gas sealing valve is prolonged; in addition, theflange 7 arranged on the outer wall of thevalve port pipeline 3 is connected with the pipeline, thefastener 8 is arranged at theflange 7, after theflange 7 is assembled, therotating part 82 only needs to rotate towards the axial direction of theflange 7 to fix the valve port with the converter pipeline, so that a gap caused by expansion caused by heat and contraction caused by cold at the joint of the high-temperature fireproof coal gassealing valve port 2 and the converter pipeline can be prevented, and the sealing performance of the high-temperature fireproof coal gas sealing valve is greatly improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A high-temperature fireproof gas sealing valve is characterized in that: the converter valve comprises a valve body, wherein a sealing valve port is arranged on one side of the valve body, a hollow valve port pipeline is arranged at the sealing valve port, a hollow lining pipe is fixedly connected in the valve port pipeline, the valve port pipeline and the lining pipe are mutually detachable, and a fixing device connected with a converter pipeline is arranged on the outer wall of the valve port pipeline.

2. The high temperature fire-proof gas sealing valve of claim 1, wherein: the fixing device comprises a flange and fasteners, the flange is fixed on the outer wall of the valve port pipeline, and the flange is fixedly connected with at least two fasteners at uniform intervals along the circumferential direction of the axis of the valve port pipeline.

3. The high temperature fire-proof gas sealing valve of claim 2, wherein: the fastener comprises a fixing piece and a rotating piece, the fixing piece is fixedly connected with the flange, and the rotating piece is movably connected with the fixing piece.

4. The high temperature fire-proof gas sealing valve of claim 3, wherein: the fixing part is connected with the rotating part through the rotating shaft.

5. The high temperature fire-proof gas sealing valve according to claim 3 or 4, characterized in that: and an adjusting bolt is arranged at the end part of the rotating piece.

6. The high temperature fire-proof gas sealing valve of claim 1, wherein: the valve port pipeline is characterized in that internal threads are arranged on the inner wall of the valve port pipeline, external threads corresponding to the internal threads are arranged on the outer wall of the lining pipe, and the valve port pipeline is connected with the lining pipe through the threads.

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