Coal gas leakage processing device for lower sealing valve

Abstract

The invention belongs to the technical field of steel production, and particularly relates to a lower sealing valve gas leakage processing device.A gas conveying device comprises a conveying pipeline, the outer ring face of one end of the conveying pipeline is fixedly connected with a first flange, and the joint of the first flange and a second flange is clamped through two sets of arc-shaped protection blocks; when gas leaks, the leakage speed can be delayed, the diffusion range of the gas in unit time can be reduced, the gas concentration can be reduced, the poisoning and explosion risks are reduced, meanwhile, the stokehole high-temperature lubricating grease flowing into the flowing groove can flow to the first flange and the second flange, and therefore the purpose of sealing again is achieved, and the service life of the stokehole high-temperature lubricating grease is prolonged. Gaps can be filled in time, the sealing effect can be enhanced and gas leakage can be prevented through the fluidity of the stokehole high-temperature lubricating grease, meanwhile, deformation caused by high temperature, high pressure, vibration and other severe working conditions can be adapted by supplementing the sealing fluid material, effective sealing can be reestablished, and then the continuity of the whole working procedure can be improved.

Description

Technical Field

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

[0002] The lower seal valve is a key device in the bell-less top charging system of the ironmaking blast furnace. It is mainly used to seal the top tank with gas to ensure the pressurized operation of the blast furnace and maintain the top pressure. Whether it is a series tank type or a parallel tank type blast furnace top, 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, and automatically trigger an emergency shut-off procedure to close the blast furnace lower tight valve and related gas valves, thereby quickly cutting off the leakage source.

[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, which will cause 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 prior art 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, which will pose a great threat to the staff and equipment at the smelting site.

[0005] To this end, the present invention provides a lower tight valve gas leakage processing device. 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 the technical problem is: a gas leakage treatment device with a lower sealing valve described in the present invention, the gas delivery device comprises a delivery pipeline, the outer ring surface of one end of the delivery pipeline is fixedly connected with a first flange, one side of the first flange is fixedly connected with a second flange through a screw, a valve is fixedly arranged on the inner ring surface of the second flange, the outer ring surface of the pipeline on one side of the valve is fixedly connected to the inner ring surface of the second flange, and a protective clamping mechanism is arranged 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 rotatably arranged 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 part 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 part of both ends of the reciprocating plate.

[0010] Preferably, a sliding shaft is slidably connected in the oblique guide groove, rotating rods are fixedly connected at both ends of the sliding shaft, a limiting column is arranged 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 sleeved 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 through the outer annular surface at the top of the second protective shell, one 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 communicated with a flow groove opened inside the arc-shaped protective block.

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

[0019] 1. A gas leakage treatment device for a lower sealing valve described in the present invention, when the gas concentration detected by the gas sensor within a unit time does not reach the preset shutdown threshold, the reciprocating column is pushed to move in a direction away from the electric cylinder by starting 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 in a direction 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 and middle parts of the reciprocating plate rotate with the outer ring surface of the limit column, the rotating rod The moving rod will rotate, so that the tops of the two sets of rotating rods will 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 circle, they will fit completely 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 precious time for subsequent emergency treatment measures such as repairs, personnel evacuation, ventilation, etc.

[0020] 2. A lower sealing valve gas leakage processing device 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, so that the electric telescopic rod is controlled to start by the controller. When the electric telescopic rod is started, the moving rod fixedly connected to its extended end will be pulled in the direction of the electric telescopic rod. At this time, the furnace-front 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 to the flow groove opened in 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 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 severe 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 in conjunction with the accompanying drawings.

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

[0023] Figure 2 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 The enlarged structural diagram at A in the middle;

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

[0027] Figure 6 It 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 It is a schematic structural diagram of the position relationship between the first protective shell and the electric telescopic rod shown in the present invention;

[0029] Figure 8 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 point; 214. Second contact point; 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. Material storage box. DETAILED DESCRIPTION

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

[0034] Embodiment 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, a gas delivery device 1 comprises a delivery pipeline 101, a first flange 102 is fixedly connected to the outer ring surface of one end of the delivery pipeline 101, a second flange 103 is fixedly connected to one side of the first flange 102 through a screw, a valve 104 is fixedly arranged on the inner ring surface of the second flange 103, and the outer ring surface of the pipeline 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 arranged at the lower part of the gas delivery device 1;

[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 rotatably arranged above the electric cylinder 202. By starting the electric cylinder 202 to drive the upper two groups of arc-shaped protective blocks 211 to move relative to each other, the junction between 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. 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 injuries to the staff.

[0038] Therefore, the present invention solves this problem by setting a corresponding structure. The present invention discloses a gas leakage treatment device for a lower sealing valve. The first flange 102 and the second flange 103 are manually aligned and fixed together by a screw. Due to long-term work, the junction 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 large local gas concentration. In addition, due to the large number of ignition sources such as open flames and electric sparks in the ironmaking plant, fire or explosion accidents are very likely to occur, which will not only cause equipment damage and production interruption, but also cause serious harm to the staff. At this time, when the gas leaks, the electric cylinder 202 set above the first protective shell 201 is started to drive the two groups of arc-shaped protection blocks 211 to move relative to each other, so as to clamp the junction of the first flange 102 and the second flange 103 to slow down the speed of gas leakage, thereby slowing down the leakage speed and gaining precious time for subsequent emergency treatment measures such as emergency repairs, personnel evacuation, ventilation, etc.

[0039] Embodiment 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 part 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, and a reciprocating plate 204 is fixedly connected to one end of the reciprocating column 203 away from the electric cylinder 202, and oblique guide grooves 205 are opened through the middle part 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 rotating rods 207 are fixedly connected at both ends of the sliding shaft 206. A limiting column 208 is arranged 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 groove 205 is opened at both ends of the reciprocating plate 204, when the reciprocating plate 204 moves away from the electric cylinder 202, the oblique guide groove 205 will be driven to move synchronously. At this time, the sliding shaft 206 sliding inside the oblique guide groove 205 will carry the rotating rod 207 to move along the guide of the oblique guide groove 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 towards each other.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, one end of the rotating rod 207 away from the sliding shaft 206 is fixedly connected to a fixed column 209, and a rotating ring 210 is sleeved on the outer ring surface of the fixed column 209. 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 groups of rotating rods 207 are restricted by the limit column 208, their tops will move relative to each other synchronously, and at the same time, the fixed column 209 will be driven to move synchronously, and the rotating ring 210 sleeved on its outer ring surface will be driven to move synchronously, and the arc protection block 211 will also be driven to move. Since the rotating ring 210 is sleeved on the outer ring surface of the fixed column 209, the mud and sand attached to the outer ring surfaces of the first flange 102 and the second flange 103 will be scratched through the intersection area between the two groups of arc protection blocks 211 during the movement, ensuring that the subsequent liquid can flow out normally. At the same time, the intersection of the first flange 102 and the second flange 103 is clamped by the two groups of arc protection blocks 211, which can slow down the leakage speed when gas leakage occurs, so that the range of gas diffusion per unit time will be reduced, which helps to reduce the gas concentration and reduce the risk of poisoning and explosion. At the same time, it can also buy precious time for subsequent emergency treatment measures such as repair, personnel evacuation, ventilation, etc.

[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 respectively fixedly connected to the first contact 213 and the second contact 214.

[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 collide 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 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.

[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, a moving rod 303 is fixedly connected to the top of the extended end of the electric telescopic rod 301, and a piston 304 is fixedly connected to the end of the moving rod 303 away from the extended end of the electric telescopic rod 301. A return spring 305 is fixedly connected to the side of the piston 304 close to the moving rod 303, 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 thereto to move in a direction close to the electric telescopic rod 301. During the movement, the piston 304 will be synchronously pulled to move along the guide of the inner cavity of the second protective shell 302. At this time, the reset spring 305 is in a compressed state. The setting of the reset spring 305 can better reset the piston 304.

[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 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 connected to the flow groove 215 opened inside the arc-shaped protective block 211, and the 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, 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 penetrates and is fixed to the outer annular surface of 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 severe 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 groove 205 is opened at both ends of the reciprocating plate 204, when the reciprocating plate 204 moves away from the electric cylinder 202, the oblique guide groove 205 will be driven to move synchronously. At this time, the sliding shaft 206 sliding inside the oblique guide groove 205 will carry the rotating rod 207 to move along the guide of the oblique guide groove 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 towards each other.

[0059] When the two groups of rotating rods 207 are restricted by the limit column 208, their tops will move relative to each other synchronously, 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 mud and sand attached to the outer ring surfaces of the first flange 102 and the second flange 103 are scratched through the intersection area between the two groups of arc protection blocks 211 during the movement, ensuring that the subsequent liquid can flow out normally. At the same time, the intersection of the first flange 102 and the second flange 103 is clamped by the two groups of arc protection blocks 211, which can slow down the leakage speed when gas leakage occurs, so that the range of gas diffusion per unit time will be reduced, which helps to reduce the gas concentration and reduce the risk of poisoning and explosion. At the same time, it can also buy precious time for subsequent emergency treatment measures such as emergency repairs, personnel evacuation, ventilation, etc.

[0060] When the tops of the two groups of rotating rods 207 rotate relative to each other, the two groups of arc protection blocks 211 will be driven to move synchronously. When the two groups of arc 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 protection blocks 211 will collide 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 protection block 211 can prevent the arc 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 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.

[0062] When the electric telescopic rod 301 is started, its extended end will pull the moving rod 303 fixed thereto to move in a direction close to the electric telescopic rod 301. During the movement, the piston 304 will be synchronously pulled to move 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-preheated 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 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-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 penetrates and is fixed to the outer annular surface of 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 runs through the inner annular surface of the arc-shaped protection block 211, so the furnace-front high-temperature grease will flow to the intersection of the first flange 102 and the second flange 103 through the flow groove 215, so as to achieve 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 severe 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 above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gas leakage treatment device with a lower sealing valve, the gas delivery device (1) comprising a delivery pipeline (101), the outer ring surface of one end of the delivery pipeline (101) is fixedly connected to a first flange (102), one side of the first flange (102) is fixedly connected to a second flange (103) via a screw, the inner ring surface of the second flange (103) is fixedly provided with a valve (104), the outer ring surface of the pipeline 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 part of the gas delivery device (1); The protective clamping mechanism (2) comprises 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 rotatably arranged 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, so that the intersection of the first flange (102) and the second flange (103) can be clamped.

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 part 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); and oblique guide grooves (205) are opened through the middle part of both ends of the reciprocating plate (204).

3. A 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 arranged 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 sleeved 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. A 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 surface of the rotating rod (207) close to one end of the arc-shaped protection block (211), and a first contact point (213) and a second contact point (214) are fixedly connected to the tops of the two groups of arc-shaped protection blocks (211), respectively.

6. A 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. A gas leakage treatment device for a lower sealing valve according to claim 4, characterized in that: 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) comprises an electric telescopic rod (301), the bottom of the electric telescopic rod (301) is fixedly connected to an 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).

8. A gas leakage treatment device for a lower sealing valve according to claim 7, characterized in that: A moving rod (303) is fixedly connected to the top of the extended end of the electric telescopic rod (301); an 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); 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).

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

10. A gas leakage treatment device for a lower sealing valve according to claim 9, characterized in that: A second conduit (307) is fixedly connected to the top outer ring surface 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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