A gas leakage treatment device for a lower sealing valve

Abstract

The present invention belongs to the technical field of steel production, and specifically is a lower sealing valve gas leakage processing device, the gas delivery device includes a delivery pipe, the outer ring surface of one end of the delivery pipe is fixedly connected to a first flange, and the junction of the first flange and the second flange is clamped by two groups of arc-shaped protection blocks, which can slow down the leakage speed when gas leakage occurs so that the range of gas diffusion per unit time can be reduced, which helps to reduce the gas concentration and reduce the risk of poisoning and explosion. At the same time, the high-temperature grease in front of the furnace flowing into the flow groove will flow to the first flange and the second flange, thereby achieving the purpose of re-sealing. The fluidity of the high-temperature grease in front of the furnace can fill the gap in time, enhance the sealing effect, and prevent gas leakage. At the same time, by supplementing the sealing fluid material, it can adapt to deformation caused by harsh working conditions such as high temperature, high pressure and vibration, and re-establish an effective seal, thereby improving the continuity of the entire process.

Description

Technical Field

[0001] The invention belongs to the technical field of steel production, in particular to a device for processing gas leakage from a lower sealing valve. Background Art

[0002] The lower seal valve is a key component of the bellless top charging system for ironmaking blast furnaces. It is primarily used to seal the top charging tanks for gas, ensuring pressurized operation and maintaining top pressure. Whether in a tandem or parallel blast furnace, the lower seal valve plays an indispensable role.

[0003] In the prior art, a gas concentration sensor is installed to detect whether there is any gas leakage at the connection of the lower tight valve. When the gas sensor detects a gas leakage, the system will sound an alarm through sound and other means, and will automatically trigger the emergency shut-off program to close the blast furnace lower tight valve and related gas valves, thereby quickly cutting off the source of the leakage.

[0004] There are still some problems in the actual application of the above scheme. During the gas transmission process, since the gas contains a certain amount of corrosive compounds such as hydrogen sulfide, carbon dioxide, oxygen, sulfide, etc., it will corrode the sealing ring, causing the seals to loosen, and then the sealing between the transmission pipeline and the valve will decrease, resulting in gas leakage. In addition, since there are many ignition sources such as open flames and electric sparks in the iron and steel plant, it is very easy to cause fire or explosion accidents, which will not only cause equipment damage and production interruption, but also cause serious harm to the staff. At the same time, due to the unevenness of the pipeline joints, the clamping technology of the existing technology cannot effectively prevent the problem of gas leakage, which will cause continuous mixing of gas and air. When it reaches a certain concentration range and encounters open flames or high temperatures, it will explode, posing a great threat to the staff and equipment at the smelting site.

[0005] To this end, the present invention provides a gas leakage treatment device for a lower sealing valve. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: a gas leakage treatment device for a lower sealing valve according to the present invention, wherein the gas delivery device includes a delivery pipe, a first flange is fixedly connected to the outer ring surface of one end of the delivery pipe, a second flange is fixedly connected to one side of the first flange via a screw, a valve is fixedly provided on the inner ring surface of the second flange, and the outer ring surface of the pipe on one side of the valve is fixedly connected to the inner ring surface of the second flange; a protective clamping mechanism is provided at the bottom of the gas delivery device;

[0008] The protective clamping mechanism includes a first protective shell, an electric cylinder is fixedly arranged above the first protective shell, and two arc-shaped protective blocks are symmetrically rotated above the electric cylinder. By starting the electric cylinder to drive the two upper groups of arc-shaped protective blocks to move relative to each other, the junction of the first flange and the second flange can be clamped.

[0009] Preferably, the electric cylinder is fixedly arranged in the middle above the first protective shell, an inner cavity is opened in the upper part of the first protective shell, a reciprocating column is slidably connected inside the electric cylinder, a reciprocating plate is fixedly connected to the end of the reciprocating column away from the electric cylinder, and oblique guide grooves are opened through the middle of both ends of the reciprocating plate.

[0010] Preferably, a sliding shaft is slidably connected in the oblique guide groove, and rotating rods are fixedly connected at both ends of the sliding shaft. A limiting column is provided in the middle of the rotating rod, and the rotating rod is rotatably connected to the outer ring surface of the limiting column.

[0011] Preferably, one end of the rotating rod away from the sliding shaft is fixedly connected to a fixed column, the outer ring surface of the fixed column is provided with a rotating collar, and the outer ring surface of the rotating collar is fixedly connected to two groups of arc-shaped protection blocks.

[0012] Preferably, a blocking plate is fixedly connected to the side surface of the rotating rod close to one end of the arc-shaped protection block, and the tops of the two groups of arc-shaped protection blocks are respectively fixedly connected to a first contact and a second contact.

[0013] Preferably, a flow groove is provided inside the arc-shaped protection block.

[0014] Preferably, an injection filling mechanism for filling is provided on the upper part of the protective clamping mechanism, and the injection filling mechanism includes an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected to the inner cavity opened in the first protective shell, and the top of the first protective shell is fixedly connected to the second protective shell.

[0015] Preferably, a moving rod is fixedly connected to the top of the extended end of the electric telescopic rod, an end of the moving rod away from the extended end of the electric telescopic rod is fixedly connected to a piston, a side of the piston close to the moving rod is fixedly connected to a return spring, and the other end of the return spring is fixedly connected to the bottom of the inner cavity of the second protective shell.

[0016] Preferably, a first conduit is passed through and fixedly connected to the outer annular surface in the middle of the second protective shell, and a storage box is passed through and fixedly connected to one end of the first conduit away from the second protective shell.

[0017] Preferably, a second conduit is fixedly connected to the outer annular surface of the top of the second protective shell, and the end of the second conduit away from the second protective shell is fixedly connected to the arc-shaped protective block, and the second conduit is connected to the flow groove opened inside the arc-shaped protective block.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention relates to a gas leakage treatment device for a lower sealing valve. When the gas concentration detected by the gas sensor within a unit time does not reach the preset shutdown threshold, the electric cylinder is started to push the reciprocating column to move in a direction away from the electric cylinder. At this time, the electric cylinder will push the reciprocating plate on its top to move synchronously, and drive the oblique guide groove to move synchronously. Since both ends of the sliding shaft are fixed to the bottom of the rotating rod and the outer ring surface slides inside the oblique guide groove, when the oblique guide groove moves away from the lower bottom surface of the first protective shell, the rotating rod will be guided by the oblique guide groove to move. Since the upper middle part of the reciprocating plate rotates with the outer ring surface of the limit column, the rotating rod The moving rod will rotate, causing the tops of the two sets of rotating rods to move relative to each other at the same time, which will drive the rotating ring on the outer ring surface of the fixed column to move and push the arc-shaped protection block to move synchronously. When the two sets of arc-shaped protection blocks completely wrap the junction of the first flange and the second flange and form a closed circular ring, they will completely fit with the junction of the first flange and the second flange, thereby slowing down the speed of gas leakage and reducing the range of gas diffusion per unit time. This helps to reduce gas concentration and reduce the risk of poisoning and explosion. At the same time, it can also buy valuable time for subsequent emergency treatment measures such as repairs, personnel evacuation, ventilation, etc.

[0020] 2. A gas leakage treatment device for a lower sealing valve described in the present invention, when the two groups of arc-shaped protection blocks completely wrap the first flange and the second flange and form a circular ring, the first contacts and the second contacts respectively fixed on the top of the two groups of arc-shaped protection blocks will conflict with each other, thereby controlling the electric telescopic rod to start through the controller. When the electric telescopic rod is started, the moving rod fixedly connected to its protruding end will be pulled in the direction of the electric telescopic rod. At this time, the furnace high-temperature grease (Tyrol molybdenum disulfide lithium-based grease) stored in the storage box will be sucked into the cavity between the upper part of the piston and the second protective shell through the first conduit. At this time, the reset spring is in a contracted state, and the electric telescopic rod will continue to move and push The movable moving rod moves away from the electric telescopic rod. At this time, the furnace-front high-temperature grease stored in the cavity between the top of the piston and the second protective shell will flow through the second conduit into the flow groove opened inside the arc-shaped protective block. Since the flow groove runs through the inner annular surface of the arc-shaped protective block, the furnace-front high-temperature grease flowing into the flow groove will flow to the first flange and the second flange, thereby achieving the purpose of resealing. The fluidity of the furnace-front high-temperature grease can fill the gap in time, enhance the sealing effect, and prevent gas leakage. Secondly, by supplementing the sealing fluid material, it can adapt to the deformation caused by harsh working conditions such as high temperature, high pressure and vibration, and re-establish an effective seal, thereby improving the continuity of the entire process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0023] Figure 2 1 is a schematic diagram of the cross-sectional structure of the first protective shell shown in the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the protection clamping mechanism shown in the present invention;

[0025] Figure 4 The present invention shows Figure 3 A in the middle is an enlarged structural diagram;

[0026] Figure 5 This is a schematic structural diagram of the positional relationship between the arc-shaped protection block and the flow slot shown in the present invention;

[0027] Figure 6 This is a schematic structural diagram of the positional relationship between the first protective shell and the material storage box shown in the present invention;

[0028] Figure 7 This is a schematic structural diagram of the positional relationship between the first protective shell and the electric telescopic rod shown in the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the second protective shell shown in the present invention;

[0030] In the figure: 1, gas delivery device; 101, delivery pipeline; 102, first flange; 103, second flange; 104, valve;

[0031] 2. Protective clamping mechanism; 201. First protective shell; 202. Electric cylinder; 203. Reciprocating column; 204. Reciprocating plate; 205. Oblique guide groove; 206. Sliding shaft; 207. Rotating rod; 208. Limiting column; 209. Fixed column; 210. Rotating collar; 211. Arc-shaped protective block; 212. Blocking plate; 213. First contact; 214. Second contact; 215. Flow groove;

[0032] 3. Injection filling mechanism; 301. Electric telescopic rod; 302. Second protective shell; 303. Moving rod; 304. Piston; 305. Return spring; 306. First conduit; 307. Second conduit; 308. Storage box. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] Example 1

[0035] like Figures 1 to 8 As shown, a gas leakage treatment device for a lower sealing valve according to an embodiment of the present invention includes a gas delivery device 1 comprising a delivery pipe 101. A first flange 102 is fixedly connected to the outer ring surface of one end of the delivery pipe 101. A second flange 103 is fixedly connected to one side of the first flange 102 via a screw. A valve 104 is fixedly provided on the inner ring surface of the second flange 103. The outer ring surface of the pipe on the side of the valve 104 is fixedly connected to the inner ring surface of the second flange 103. The gas delivery device 1 is characterized in that a protective clamping mechanism 2 is provided at the bottom thereof.

[0036] The protective clamping mechanism 2 includes a first protective shell 201, an electric cylinder 202 is fixedly arranged above the first protective shell 201, and two arc-shaped protective blocks 211 are symmetrically rotated above the electric cylinder 202. By starting the electric cylinder 202 to drive the two upper groups of arc-shaped protective blocks 211 to move relative to each other, the junction of the first flange 102 and the second flange 103 can be clamped.

[0037] Specifically, when the seals become loose, the sealing between the delivery pipe 101 and the valve 104 will be reduced, which will lead to gas leakage. Long-term leakage will lead to a high local gas concentration. Due to the large number of ignition sources such as open flames and electric sparks in the ironworks, fires or explosions are very likely to occur, which will not only cause equipment damage and production interruption, but also cause serious injuries to workers.

[0038] Therefore, the present invention solves this problem by providing a corresponding structure. In the present invention, a gas leakage treatment device for a lower sealing valve is described. The first flange 102 and the second flange 103 are manually aligned and fixed together by screws. Due to long-term work, the intersection of the first flange 102 and the second flange 103 will be worn, resulting in a decrease in the overall sealing performance of the device, which will cause gas leakage. Long-term leakage will lead to a high local gas concentration. In addition, due to the large number of ignition sources such as open flames and electric sparks in the ironworks, fires or explosions are very likely to occur. This will not only cause equipment damage and production interruption, but also cause serious injuries to workers. At this time, when gas leakage occurs, the electric cylinder 202 provided above the first protective shell 201 is activated to drive the two sets of arc-shaped protective blocks 211 to move relative to each other, thereby clamping the intersection of the first flange 102 and the second flange 103 to slow down the speed of gas leakage. Slowing down the leakage speed buys valuable time for subsequent emergency treatment measures such as emergency repairs, personnel evacuation, and ventilation.

[0039] Example 2

[0040] like Figures 2 to 8 As shown in Comparative Example 1, another embodiment of the present invention is:

[0041] like Figure 2 and Figure 3 As shown, the electric cylinder 202 of this embodiment is fixedly arranged in the middle above the first protective shell 201. An inner cavity is opened in the upper part of the first protective shell 201. A reciprocating column 203 is slidably connected inside the electric cylinder 202. A reciprocating plate 204 is fixedly connected to one end of the reciprocating column 203 away from the electric cylinder 202. An oblique guide groove 205 is opened through the middle of both ends of the reciprocating plate 204.

[0042] Specifically, when the concentration detected by the gas sensor within a unit time does not reach a certain level, the electric cylinder 202 fixed on the first protective shell 201 is started to push the reciprocating column 203 to move away from the electric cylinder 202. At this time, the reciprocating plate 204 fixed on the top of the reciprocating column 203 will also move synchronously, and then will also drive the oblique guide groove 205 to move synchronously. The setting of two groups of oblique guide grooves 205 can allow subsequent components to move relative to each other.

[0043] like Figure 2 and Figure 3 As shown, in this embodiment, a sliding shaft 206 is slidably connected in the oblique guide groove 205, and a rotating rod 207 is fixedly connected at both ends of the sliding shaft 206. A limiting column 208 is set in the middle of the rotating rod 207, and the rotating rod 207 is rotatably connected to the outer ring surface of the limiting column 208.

[0044] Specifically, since the oblique guide grooves 205 are provided at both ends of the reciprocating plate 204, when the reciprocating plate 204 moves away from the electric cylinder 202, the oblique guide grooves 205 will be driven to move synchronously. At this time, the sliding shaft 206 sliding inside the oblique guide grooves 205 will carry the rotating rod 207 to move along the guide of the oblique guide grooves 205. Since the rotating rod 207 rotates on the outer ring surface of the limiting column 208, the rotating rod 207 will rotate around the limiting column 208 when moving, so that the tops of the two groups of rotating rods 207 move toward each other.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, the end of the rotating rod 207 away from the sliding shaft 206 is fixedly connected to a fixed column 209, and the outer ring surface of the fixed column 209 is provided with a rotating ring 210, and the outer ring surface of the rotating ring 210 is fixedly connected to two groups of arc-shaped protection blocks 211.

[0046] Specifically, when the two sets of rotating rods 207 are restricted by the limit column 208, their tops will move synchronously with each other, and at the same time, they will drive the fixed column 209 to move synchronously, and drive the rotating ring 210 mounted on its outer ring surface to move synchronously, and at the same time, they will drive the arc protection block 211 to move. Since the rotating ring 210 is mounted on the outer ring surface of the fixed column 209, the intersection area between the two sets of arc protection blocks 211 will scrape the mud and sand attached to the outer ring surfaces of the first flange 102 and the second flange 103 during the movement, ensuring that the subsequent liquid can flow out normally. At the same time, the two sets of arc protection blocks 211 clamp the intersection of the first flange 102 and the second flange 103, which can slow down the leakage speed when gas leakage occurs and reduce the range of gas diffusion per unit time, which helps to reduce the gas concentration and reduce the risk of poisoning and explosion. At the same time, it can also buy valuable time for subsequent emergency treatment measures such as repairs, personnel evacuation, and ventilation.

[0047] like Figure 3 As shown, in this embodiment, a blocking plate 212 is fixedly connected to the side of the rotating rod 207 close to one end of the arc-shaped protection block 211, and the tops of the two groups of arc-shaped protection blocks 211 are fixedly connected to the first contact 213 and the second contact 214 respectively.

[0048] Specifically, when the tops of the two groups of rotating rods 207 rotate relative to each other, the two groups of arc-shaped protection blocks 211 will be driven to move synchronously. When the two groups of arc-shaped protection blocks 211 form a closed loop, the first contact 213 and the second contact 214 fixed on the tops of the two groups of arc-shaped protection blocks 211 will conflict with each other, thereby starting another mechanism through the controller. At the same time, the blocking plate 212 arranged at the bottom of the arc-shaped protection block 211 can prevent the arc-shaped protection block 211 from rotating excessively and failing to fit with the outer annular surfaces of the first flange 102 and the second flange 103.

[0049] like Figure 6 and Figure 7 As shown, in this embodiment, an injection filling mechanism 3 for filling is provided on the upper part of the protective clamping mechanism 2. The injection filling mechanism 3 includes an electric telescopic rod 301. The bottom of the electric telescopic rod 301 is fixedly connected to the inner cavity opened in the first protective shell 201, and the top of the first protective shell 201 is fixedly connected to the second protective shell 302.

[0050] Specifically, since the first contact 213 and the second contact 214 are in contact with each other, the electric telescopic rod 301 is started by the controller. Since the second protective shell 302 is fixed on the top of the first protective shell 201, and the hole opened at the bottom of the second protective shell 302 and the electric telescopic rod 301 are in the same vertical horizontal plane, it is convenient to start the subsequent device, thereby improving the degree of automation of the equipment.

[0051] like Figure 7and Figure 8 As shown, in this embodiment, the top of the extended end of the electric telescopic rod 301 is fixedly connected to a moving rod 303, the end of the moving rod 303 away from the extended end of the electric telescopic rod 301 is fixedly connected to a piston 304, and the side of the piston 304 close to the moving rod 303 is fixedly connected to a return spring 305, and the other end of the return spring 305 is fixedly connected to the bottom of the inner cavity of the second protective shell 302.

[0052] Specifically, when the electric telescopic rod 301 is started, its extended end will pull the moving rod 303 fixed to it to move in the direction close to the electric telescopic rod 301. During the movement, the piston 304 will be pulled synchronously along the guide of the inner cavity of the second protective shell 302 to move synchronously. At this time, the return spring 305 is in a compressed state. The setting of the return spring 305 can make the piston 304 better reset.

[0053] like Figure 6 and Figure 8 As shown, in this embodiment, a first conduit 306 is fixedly connected to the middle outer ring surface of the second protective shell 302, and a storage box 308 is fixedly connected to the end of the first conduit 306 away from the second protective shell 302.

[0054] Specifically, when the piston 304 moves along the guide direction of the second protective shell 302 toward the electric telescopic rod 301, the furnace high-temperature grease (Tyrol molybdenum disulfide lithium-based grease) inside the storage box 308 will be sucked into the inner cavity of the second protective shell 302 through the first conduit 306, thereby providing material support for subsequent coating.

[0055] like Figure 5 and Figure 8 As shown, in this embodiment, a second conduit 307 is fixedly connected to the top outer ring surface of the second protective shell 302, and the end of the second conduit 307 away from the second protective shell 302 is fixedly connected to the arc-shaped protective block 211. The second conduit 307 is connected to the flow groove 215 opened inside the arc-shaped protective block 211, and a flow groove 215 is opened inside the arc-shaped protective block 211.

[0056] Specifically, when the extended end of the electric telescopic rod 301 extends upward, it pushes the piston 304 to move away from the electric telescopic rod 301 through the second protective shell 302. At this time, the furnace-front high-temperature grease stored between the second protective shell 302 and the piston 304 will move upward along the second protective shell 302. At the same time, since the second conduit 307 passes through the outer annular surface fixed to the second protective shell 302, the piston 304 will push the furnace-front high-temperature grease into the second conduit 307 when it moves away from the electric telescopic rod 301. At the same time, since the second conduit 307 is connected to the flow groove 215 opened in the arc-shaped protective block 211, the flow The groove 215 runs through the inner annular surface of the arc-shaped protection block 211, so the high-temperature grease in front of the furnace will flow through the flow groove 215 to the intersection of the first flange 102 and the second flange 103, thereby achieving the purpose of re-sealing. The fluidity of the high-temperature grease in front of the furnace can fill the gap in time, enhance the sealing effect, and prevent gas leakage. Secondly, by supplementing the sealing fluid material, it can adapt to the deformation caused by harsh working conditions such as high temperature, high pressure and vibration, and re-establish an effective seal. At the same time, since the materials of the first conduit 306 and the second conduit 307 are both soft materials, the gap can be filled without affecting the movement of the two sets of arc-shaped protection blocks 211.

[0057] Working principle: when the concentration detected by the gas sensor within a unit time does not reach a certain level, the electric cylinder 202 fixed on the first protective shell 201 is started to push the reciprocating column 203 to move away from the electric cylinder 202. At this time, the reciprocating plate 204 fixed on the top of the reciprocating column 203 will also move synchronously, and then will also drive the oblique guide groove 205 to move synchronously. The setting of two groups of oblique guide grooves 205 can allow subsequent components to move relative to each other.

[0058] Since the oblique guide grooves 205 are provided at both ends of the reciprocating plate 204, when the reciprocating plate 204 moves away from the electric cylinder 202, the oblique guide grooves 205 will be driven to move synchronously. At this time, the sliding shaft 206 sliding inside the oblique guide grooves 205 will carry the rotating rod 207 to move along the guide of the oblique guide grooves 205. Since the rotating rod 207 rotates on the outer ring surface of the limiting column 208, the rotating rod 207 will rotate around the limiting column 208 when moving, so that the tops of the two groups of rotating rods 207 move toward each other.

[0059] When the two sets of rotating rods 207 are restricted by the limit column 208, their tops will move synchronously with each other, and at the same time, they will drive the fixed column 209 to move synchronously, and drive the rotating ring 210 mounted on its outer ring surface to move synchronously, and at the same time, they will drive the arc protection block 211 to move. Since the rotating ring 210 is mounted on the outer ring surface of the fixed column 209, the intersection area between the two sets of arc protection blocks 211 will scrape the mud and sand attached to the outer ring surfaces of the first flange 102 and the second flange 103 during the movement, ensuring that the subsequent liquid can flow out normally. At the same time, the two sets of arc protection blocks 211 will clamp the intersection of the first flange 102 and the second flange 103, which can slow down the leakage speed when gas leakage occurs and reduce the range of gas diffusion per unit time, which helps to reduce the gas concentration and reduce the risk of poisoning and explosion. At the same time, it can also buy valuable time for subsequent emergency treatment measures such as repairs, personnel evacuation, and ventilation.

[0060] When the tops of the two groups of rotating rods 207 rotate relative to each other, the two groups of arc-shaped protection blocks 211 will be driven to move synchronously. When the two groups of arc-shaped protection blocks 211 form a closed loop, the first contact 213 and the second contact 214 fixed on the tops of the two groups of arc-shaped protection blocks 211 will conflict with each other, thereby starting another mechanism through the controller. At the same time, the blocking plate 212 arranged at the bottom of the arc-shaped protection block 211 can prevent the arc-shaped protection block 211 from rotating excessively and failing to fit with the outer annular surfaces of the first flange 102 and the second flange 103.

[0061] Since the first contact 213 and the second contact 214 are in contact with each other, the electric telescopic rod 301 is activated by the controller. Since the second protective shell 302 is fixed on the top of the first protective shell 201, and the hole opened at the bottom of the second protective shell 302 and the electric telescopic rod 301 are in the same vertical horizontal plane, it is convenient to activate the subsequent device, thereby improving the degree of automation of the equipment.

[0062] When the electric telescopic rod 301 is started, its extended end will pull the moving rod 303 fixed to it to move in the direction close to the electric telescopic rod 301. During the movement, it will synchronously pull the piston 304 to move synchronously along the guide of the inner cavity of the second protective shell 302. At this time, the return spring 305 is in a compressed state. The setting of the return spring 305 can make the piston 304 better reset.

[0063] When the piston 304 moves along the guide direction of the second protective shell 302 toward the electric telescopic rod 301, the furnace high-temperature grease (Tyrol molybdenum disulfide lithium-based grease) inside the storage box 308 will be sucked into the inner cavity of the second protective shell 302 through the first conduit 306, thereby providing material support for subsequent coating.

[0064] When the extended end of the electric telescopic rod 301 is extended upward, the piston 304 is pushed to move away from the electric telescopic rod 301 through the second protective shell 302. At this time, the furnace-front high-temperature grease stored between the second protective shell 302 and the piston 304 will move upward along the second protective shell 302. At the same time, since the second conduit 307 passes through the outer annular surface fixed to the second protective shell 302, the furnace-front high-temperature grease will be pushed into the second conduit 307 when the piston 304 moves away from the electric telescopic rod 301. At the same time, since the second conduit 307 is connected to the flow groove 215 opened in the arc-shaped protective block 211, and the flow groove 215 is connected to the arc-shaped protective block 211, the flow groove 215 is connected to the arc-shaped protective block 211. 15 penetrates the inner annular surface of the arc-shaped protection block 211, so the furnace-front high-temperature grease will flow through the flow groove 215 to the intersection of the first flange 102 and the second flange 103, thereby achieving the purpose of re-sealing. The fluidity of the furnace-front high-temperature grease can fill the gap in time, enhance the sealing effect, and prevent gas leakage. Secondly, by supplementing the sealing fluid material, it can adapt to the deformation caused by harsh working conditions such as high temperature, high pressure and vibration, and re-establish an effective seal. At the same time, since the materials of the first conduit 306 and the second conduit 307 are both soft materials, the gap can be filled without affecting the movement of the two sets of arc-shaped protection blocks 211.

[0065] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas leakage treatment device with a lower sealing valve, wherein the gas delivery device (1) comprises a delivery pipe (101), wherein the outer ring surface of one end of the delivery pipe (101) is fixedly connected to a first flange (102), and one side of the first flange (102) is fixedly connected to a second flange (103) via a screw, and a valve (104) is fixedly provided on the inner ring surface of the second flange (103), and the outer ring surface of the pipe on one side of the valve (104) is fixedly connected to the inner ring surface of the second flange (103), characterized in that: A protective clamping mechanism (2) is provided at the lower portion of the gas delivery device (1); The protective clamping mechanism (2) includes a first protective shell (201), an electric cylinder (202) is fixedly arranged above the first protective shell (201), and two groups of arc-shaped protective blocks (211) are symmetrically rotated above the electric cylinder (202). By starting the electric cylinder (202), the two groups of upper arc-shaped protective blocks (211) are driven to move relative to each other, thereby clamping the intersection of the first flange (102) and the second flange (103); an injection filling mechanism (3) for filling is arranged on the upper part of the protective clamping mechanism (2), and the injection filling mechanism (3) includes an electric telescopic rod (301), the bottom of the electric telescopic rod (301) is fixedly connected to the inner cavity opened in the first protective shell (201), and the top of the first protective shell (201) is fixedly connected to the second protective shell (302); When the extended end of the electric telescopic rod (301) extends upward, the piston (304) is pushed to move away from the electric telescopic rod (301) through the second protective shell (302). At this time, the furnace high-temperature lubricating grease stored between the second protective shell (302) and the piston (304) moves upward along the second protective shell (302). The furnace high-temperature lubricating grease flows through the flow groove (215) to the intersection of the first flange (102) and the second flange (103), thereby achieving the purpose of resealing.

2. A gas leakage treatment device for a lower sealing valve according to claim 1, characterized in that: The electric cylinder (202) is fixedly arranged in the middle above the first protective shell (201); an inner cavity is provided in the upper part of the first protective shell (201); a reciprocating column (203) is slidably connected inside the electric cylinder (202); an end of the reciprocating column (203) away from the electric cylinder (202) is fixedly connected to a reciprocating plate (204); and oblique guide grooves (205) are provided through the middle of both ends of the reciprocating plate (204).

3. The gas leakage treatment device for a lower sealing valve according to claim 2, characterized in that: A sliding shaft (206) is slidably connected in the oblique guide groove (205), and rotating rods (207) are fixedly connected at both ends of the sliding shaft (206). A limiting column (208) is provided in the middle of the rotating rod (207), and the rotating rod (207) is rotatably connected to the outer ring surface of the limiting column (208).

4. A gas leakage treatment device for a lower sealing valve according to claim 3, characterized in that: One end of the rotating rod (207) away from the sliding shaft (206) is fixedly connected to a fixed column (209), the outer ring surface of the fixed column (209) is provided with a rotating collar (210), and the outer ring surface of the rotating collar (210) is fixedly connected to two groups of arc-shaped protection blocks (211).

5. The gas leakage treatment device for a lower sealing valve according to claim 4, characterized in that: A blocking plate (212) is fixedly connected to the side of the rotating rod (207) close to one end of the arc-shaped protection block (211), and a first contact (213) and a second contact (214) are fixedly connected to the tops of the two groups of arc-shaped protection blocks (211), respectively.

6. The gas leakage treatment device for a lower sealing valve according to claim 2, characterized in that: A flow groove (215) is provided inside the arc-shaped protection block (211).

7. The gas leakage treatment device for a lower sealing valve according to claim 1, characterized in that: The top of the extended end of the electric telescopic rod (301) is fixedly connected to a moving rod (303); one end of the moving rod (303) away from the extended end of the electric telescopic rod (301) is fixedly connected to a piston (304); a side of the piston (304) close to the moving rod (303) is fixedly connected to a return spring (305); the other end of the return spring (305) is fixedly connected to the bottom of the inner cavity of the second protective shell (302).

8. The gas leakage treatment device for a lower sealing valve according to claim 7, characterized in that: A first conduit (306) is fixedly connected to a central outer annular surface of the second protective shell (302), and a material storage box (308) is fixedly connected to an end of the first conduit (306) away from the second protective shell (302).

9. The gas leakage treatment device for a lower sealing valve according to claim 8, characterized in that: A second conduit (307) is fixedly connected to the outer annular surface at the top of the second protective shell (302), and one end of the second conduit (307) away from the second protective shell (302) is fixedly connected to the arc-shaped protective block (211). The second conduit (307) is communicated with a flow groove (215) provided inside the arc-shaped protective block (211).

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