Online maintenance device for gas drainer

Abstract

The utility model relates to the technical field of downcomer maintenance, in particular to an on-line maintenance device for a gas drainer, which comprises a communicating pipe, fixed ring plates are fixedly arranged at two ends of the communicating pipe, a mounting ring plate is detachably arranged on one side, far away from the communicating pipe, of each fixed ring plate, and a conducting plate is arranged between opposite surfaces of the fixed ring plates and the mounting ring plate. A conducting hole is formed in the conducting plate in a penetrating mode, the fixing ring plate and the mounting ring plate are both detachably connected with the conducting plate, a blocking plate is arranged on the communicating pipe, and the blocking plate is used for being inserted between the opposite faces of the fixing ring plate and the mounting ring plate. The gas drainer has the advantages that the downcomer and the valve between the gas conveying pipeline and the gas drainer can be conveniently maintained on line, and gas stopping of the gas conveying pipeline is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of downcomer maintenance, in particular to an online maintenance device for a gas drainer. Background Art

[0002] Coal gas is not only an important by-product of steel smelting production, but also an important energy source for steel smelting production. Since coal gas contains saturated water vapor, during the long-distance transportation of coal gas in the pipeline, the gas temperature is affected by the ambient temperature, and condensed water is generated. The condensed water is discharged by the gas drainer. The gas drainer is an essential equipment for the coal gas transmission pipeline. As the gas is transported over long distances in the pipeline, the temperature of the coal gas is affected by the ambient temperature and the condensed water continues to condense. After being collected at the bottom of the pipeline, it is discharged through the gas drainer through the downcomer.

[0003] At present, the gas transmission pipeline and the gas drainer are connected through two sections of downpipes, and a valve is installed between the two sections of downpipes. The top of one downpipe is connected to the trumpet-shaped collecting cover on the gas transmission pipeline, and the bottom of the other downpipe is installed with a lower valve, which is connected to the gas drainer.

[0004] Since the gas condensate is acidic, the upper valve and the lower valve are prone to corrosion and leakage during the long-term contact between the collecting hood, the upper valve, the downcomer and the lower valve with the gas condensate. When the lower valve is severely corroded and maintenance is required, the upper valve can be closed to handle the problem. When the upper valve and the downcomer between the upper valve and the collecting hood are severely corroded and maintenance is required, the gas transmission pipeline needs to be shut down before processing, which reduces the production efficiency of gas recovery. Utility Model Content

[0005] In order to facilitate online maintenance of the downcomer and valve between the gas transmission pipeline and the gas drainer and reduce gas outages in the gas transmission pipeline, the present application provides an online maintenance device for the gas drainer.

[0006] The online maintenance device for a gas drainer provided in this application adopts the following technical solution:

[0007] An online maintenance device for a gas drainer comprises a connecting pipe, both ends of which are fixedly provided with fixed ring plates, a mounting ring plate is detachably provided on the side of the fixing ring plate away from the connecting pipe, a conducting plate is arranged between the opposite surfaces of the fixing ring plate and the mounting ring plate, a conducting hole is penetrated through the conducting plate, the fixing ring plate and the mounting ring plate are both detachably connected to the conducting plate, a blocking plate is arranged on the connecting pipe, and the blocking plate is used to be inserted between the opposite surfaces of the fixing ring plate and the mounting ring plate.

[0008] By adopting the above technical solution, one of the mounting ring plates is installed at the bottom of the collecting cover, and the other mounting ring plate is installed at the top of the upper valve, and then the connecting pipe is installed between the mounting ring plates through the fixed ring plate. When the upper valve is working normally, the conduction plate is installed between the fixed ring plate and the mounting ring plate, and the gas condensate flows through the conduction hole on the conduction plate. When the downpipe is severely corroded and needs to be repaired or the upper valve needs to be replaced, the fixed ring plate, the mounting ring plate and the conduction plate are first disassembled, and then one end of the blocking plate is abutted against one end of the conduction plate, and then the blocking plate is pushed to drive the conduction plate to move, so that the blocking plate replaces the conduction plate and is inserted between the fixed ring plate and the mounting ring plate, so that the blocking plate cuts off the connecting pipe, so that the gas and condensate stop flowing to the upper valve. When the downpipe between the upper valve and the collecting cover is severely corroded When it needs to be disassembled and replaced, since the fixed ring plate at the bottom end of the connecting pipe is separated from the mounting ring plate, the blocking plate cannot seal the bottom end of the connecting pipe. At this time, the conduction plate at the top end of the connecting pipe can only be disassembled, and then the blocking plate can be used to seal the top end of the connecting pipe, thereby stopping the gas and condensed water from flowing to the upper valve. When the collecting cover is welded due to severe corrosion, the top end and the bottom end of the connecting pipe are welded together. If the downcomer is severely corroded and needs to be repaired or the upper valve needs to be replaced, the conduction plate at the bottom end of the connecting pipe can only be disassembled, and then the blocking plate can be installed between the fixed ring plate and the mounting ring plate at the bottom end of the connecting pipe. The bottom end of the connecting pipe is cut off by the blocking plate, so that the gas and condensed water stop flowing to the upper valve. Then, when the upper valve is severely corroded, the gas transmission pipeline does not need to be shut down, thereby achieving the effect of online maintenance of the upper valve.

[0009] Preferably, a plurality of locking holes are formed through the fixing ring plate and the mounting ring plate, and locking screws are inserted into the locking holes. A group of locking nuts are threadedly connected to the locking screws. The fixing ring plate and the mounting ring plate are located between the locking nuts, and the locking nuts are used to abut against the fixing ring plate and the mounting ring plate.

[0010] By adopting the above technical solution, the fixed ring plate and the mounting ring plate are connected together through the locking screw and the locking nut, and the distance between the fixed ring plate and the mounting ring plate is adjusted by the locking nut.

[0011] Preferably, a plurality of positioning holes are formed through the conducting plate and the blocking plate, and the locking screws are inserted into the positioning holes.

[0012] By adopting the above technical scheme, when the conductive plate is inserted between the fixed ring plate and the mounting ring plate, the locking screw is inserted into the locking hole and the positioning hole, and then the locking nut moves along the locking screw so that the fixed ring plate and the mounting ring plate press the conductive plate tightly; when the sealing plate is inserted between the fixed ring plate and the mounting ring plate, the locking screw is inserted into the locking hole and the positioning hole, and then the locking nut moves along the locking screw so that the fixed ring plate and the mounting ring plate press the sealing plate tightly.

[0013] Preferably, a first adhesive layer is fixedly provided on the top and the bottom of the conduction plate, and the first adhesive layer is used for bonding the fixing ring plate and the mounting ring plate.

[0014] By adopting the above technical solution, when the opposite surfaces of the fixed ring plate and the mounting ring plate are pressed against the first adhesive layer, the first adhesive layer seals the gap between the fixed ring plate, the mounting ring plate and the conducting plate, thereby reducing gas leakage.

[0015] Preferably, a second adhesive layer is fixedly provided on the top and the bottom of the blocking plate, and the second adhesive layer is used for bonding the fixing ring plate and the mounting ring plate.

[0016] By adopting the above technical solution, when the opposite surfaces of the fixed ring plate and the mounting ring plate are pressed against the second adhesive layer, the second adhesive layer seals the gap between the fixed ring plate, the mounting ring plate and the sealing plate, thereby reducing gas leakage.

[0017] Preferably, an outer guide ring is sleeved on the mounting ring plate, and the outer guide ring is fixedly connected to the mounting ring plate. A group of outer guide seats are fixedly arranged on one side of the conduction plate and one side of the sealing plate. An outer guide groove is provided on the opposite surface of the outer guide seat. The outer guide groove passes through the end wall of the outer guide seat. The outer guide groove is provided for the outer guide ring to be inserted and slidable, and the inner wall of the outer guide groove is used to fit with the outer wall of the outer guide ring.

[0018] By adopting the above technical scheme, when the mounting ring plate and the conduction plate move relative to each other, the outer guide ring slides along the outer guide seat on the conduction plate; when the mounting ring plate and the sealing plate move relative to each other, the outer guide ring slides along the outer guide seat on the sealing plate; when the outer guide ring and the outer guide seat move relative to each other, the outer guide ring slides along the outer guide groove provided on the outer guide seat, so that when the conduction plate and the sealing plate move relative to the mounting ring plate, the conduction plate and the sealing plate are not easily offset, thereby reducing gas leakage.

[0019] Preferably, an inner guide ring is sleeved on the fixed ring plate, and the inner guide ring is fixedly connected to the fixed ring plate. A group of inner guide seats are fixedly arranged on the other side of the conduction plate and the other side of the sealing plate. An inner guide groove is provided on the opposite surface of the inner guide seat. The inner guide groove penetrates the end wall of the inner guide seat. The inner guide groove is provided for the inner guide ring to be inserted and slidable, and the inner wall of the inner guide groove is used to fit with the outer wall of the inner guide ring.

[0020] By adopting the above technical scheme, when the fixed ring plate and the conduction plate move relative to each other, the inner guide ring slides along the inner guide seat on the conduction plate; when the fixed ring plate and the sealing plate move relative to each other, the inner guide ring slides along the inner guide seat on the sealing plate; when the inner guide ring and the inner guide seat move relative to each other, the inner guide ring slides along the inner guide groove provided on the inner guide seat, so that when the conduction plate and the sealing plate move relative to the fixed ring plate, the conduction plate and the sealing plate are not easily offset, thereby reducing gas leakage.

[0021] Preferably, the cross section of the conducting plate is a square, and the cross section of the blocking plate is a square.

[0022] By adopting the above technical solution, the contact area between the end wall of the conducting plate and the end wall of the blocking plate is increased, and the end wall of the conducting plate abuts against the end wall of the blocking plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up connecting pipes, fixed ring plates, mounting ring plates, conduction plates, conduction holes and blocking plates, when the upper valve is severely corroded, the gas transmission pipeline does not need to be shut down, achieving the effect of online maintenance of the upper valve;

[0025] 2. The fixing ring plate and the mounting ring plate are detachably connected by providing locking holes, locking nuts and locking screws;

[0026] 3. By setting the first adhesive layer and the second adhesive layer, gas leakage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an online maintenance device for a gas drainer in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram showing the positional relationship among the connecting pipe, the collecting cover and the upper valve in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship among the fixed ring plate, the mounting ring plate and the sealing plate in the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view showing the connection relationship among the fixed ring plate, the mounting ring plate and the conductive plate in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram showing the positional relationship between the conductive plate and the positioning hole in the embodiment of the present application.

[0032] Figure 6 It is a schematic diagram showing the positional relationship between the blocking plate and the positioning hole in the embodiment of the present application.

[0033] Figure 7 It is a schematic diagram showing the positional relationship between the fixed ring plate and the inner guide ring in the embodiment of the present application.

[0034] Figure 8 It is a schematic diagram showing the positional relationship between the mounting ring plate and the outer guide ring in the embodiment of the present application.

[0035] Fig. 9 It is a cross-sectional view showing the connection relationship between the outer guide ring and the outer guide seat in the embodiment of the present application.

[0036] Fig.10 It is a cross-sectional view showing the connection relationship between the inner guide ring and the inner guide seat in the embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. connecting pipe; 11. fixing ring plate; 12. mounting ring plate; 2. conduction plate; 21. conduction hole; 3. sealing plate; 4. locking hole; 41. locking screw; 42. locking nut; 43. positioning hole; 44. first rubber layer; 45. second rubber layer; 5. outer guide ring; 51. outer guide seat; 52. outer guide groove; 6. inner guide ring; 61. inner guide seat; 62. inner guide groove; 9. gas drainer; 91. collecting cover; 92. upper valve; 93. downcomer; 94. lower valve; 95. gas transmission pipeline. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-10 This application is described in further detail.

[0039] The embodiment of the present application discloses an online maintenance device for a gas drainer. Figures 1 to 6, including a connecting pipe 1, a fixing ring plate 11 is welded to the top and bottom of the connecting pipe 1, a mounting ring plate 12 is provided on the side of the fixing ring plate 11 away from the connecting pipe 1, and the fixing ring plate 11 and the mounting ring plate 12 are detachably connected. One of the mounting ring plates 12 is installed at the bottom of the collecting cover 91, and the other mounting ring plate 12 is installed at the top of the upper valve 92, and then the connecting pipe 1 is installed between the mounting ring plates 12 through the fixing ring plate 11, so as to connect the collecting cover 91 and the upper valve 92. A conduction plate 2 is inserted between the fixing ring plates 11 and the mounting ring plates 12 at both ends of the connecting pipe 1, and the fixing ring plates 11 and the mounting ring plates 12 are detachably connected to the conduction plate 2, and a conduction hole 21 for the flow of gas condensed water is opened through the conduction plate 2. A blocking plate 3 is provided on the connecting pipe 1, and the blocking plate 3 is used to be inserted between the opposite surfaces of the fixing ring plate 11 and the mounting ring plate 12. When the conduction plate 2 and the blocking plate 3 are switched between the fixed ring plate 11 and the mounting ring plate 12, one end of the conduction plate 2 and one end of the blocking plate 3 abut against each other and move synchronously. The cross-sections of the conduction plate 2 and the blocking plate 3 are both square with chamfered corners on all sides, thereby increasing the contact area between the end wall of the conduction plate 2 and the end wall of the blocking plate 3, making it easier for the end wall of the conduction plate 2 and the end wall of the blocking plate 3 to abut against each other. When the upper valve 92 works normally, the conduction plate 2 is installed between the fixed ring plate 11 and the mounting ring plate 12, and the gas condensate flows through the conduction hole 21 on the conduction plate 2. When the down pipe 93 is seriously corroded and needs to be repaired or the upper valve 92 needs to be replaced, first remove the fasteners between the fixed ring plate 11, the mounting ring plate 12 and the conduction plate 2, and then use one end of the blocking plate 3 to abut against one end of the conduction plate 2, and then push the blocking plate 3 to drive the conduction plate 2 to move, so that the blocking plate 3 replaces the conduction plate 2 and is inserted between the fixed ring plate 11 and the mounting ring plate 12, so that the blocking plate 3 cuts off the connecting pipe 1, so that the gas and condensed water stop flowing to the upper valve 92. When the down pipe 93 between the collecting cover 91 and the upper valve 92 is seriously corroded and needs to be disassembled and replaced, because the fixed ring plate 11 at the bottom end of the connecting pipe 1 is separated from the mounting ring plate 12, the blocking plate 3 cannot seal the bottom end of the connecting pipe 1. At this time, only the conduction plate 2 at the top end of the connecting pipe 1 can be removed, and then the blocking plate 3 seals the top end of the connecting pipe 1, so that the gas and condensed water stop flowing to the upper valve 92. When the collecting cover 91 is welded due to severe corrosion, the top of the connecting pipe 1 and the bottom of the collecting cover 91 are welded together. If the downcomer 93 is severely corroded and needs to be repaired or the upper valve 92 needs to be replaced, the guide plate 2 at the bottom of the connecting pipe 1 can only be removed, and then the sealing plate 3 can be installed between the fixed ring plate 11 and the mounting ring plate 12 at the bottom of the connecting pipe 1. The bottom end of the connecting pipe 1 is cut off by the sealing plate 3 to stop the gas and condensed water from flowing to the upper valve 92.Furthermore, when the upper valve 92 is severely corroded, the gas transmission pipeline 95 does not need to be shut down. By closing the top or bottom end of the connecting pipe 1, the connecting pipe 1 is closed to achieve the effect of online maintenance of the upper valve 92. Moreover, since the structure of the connecting pipe 1 is simpler than that of the valve, the failure rate of the connecting pipe 1 is lower than that of the valve.

[0040] In order to make the fixing ring plate 11 and the mounting ring plate 12 detachably connected, refer to Figures 3 to 8 , a plurality of locking holes 4 are formed through the fixed ring plate 11 and the mounting ring plate 12, and locking screws 41 are inserted into the relative locking holes 4. A set of locking nuts 42 are threadedly connected to the locking screws 41, and the fixed ring plate 11 and the mounting ring plate 12 are located between the locking nuts 42, and the locking nuts 42 are used to abut against the fixed ring plate 11 and the mounting ring plate 12. A plurality of positioning holes 43 are formed through the conductive plate 2 and the blocking plate 3, and the positioning holes 43 are used for inserting the locking screws 41. The fixed ring plate 11 and the mounting ring plate 12 are connected together by the locking screws 41 and the locking nuts 42, and the distance between the fixed ring plate 11 and the mounting ring plate 12 is adjusted by the locking nuts 42. When the conducting plate 2 is inserted between the fixing ring plate 11 and the mounting ring plate 12, the locking screw 41 is inserted into the locking hole 4 and the positioning hole 43, and then the locking nut 42 moves along the locking screw 41, so that the fixing ring plate 11 and the mounting ring plate 12 press the conducting plate 2. When the blocking plate 3 is inserted between the fixing ring plate 11 and the mounting ring plate 12, the locking screw 41 is inserted into the locking hole 4 and the positioning hole 43, and then the locking nut 42 moves along the locking screw 41, so that the fixing ring plate 11 and the mounting ring plate 12 press the blocking plate 3.

[0041] In order to prevent leakage from occurring at the connection between the collecting cover 91, the connecting pipe 1 and the upper valve 92, refer to Figures 3 to 10 , the top and bottom of the conduction plate 2 are covered with a first adhesive layer 44 made of rubber material, and the first adhesive layer 44 is used to fit the fixed ring plate 11 and the mounting ring plate 12. The top and bottom of the sealing plate 3 are covered with a second adhesive layer 45 made of rubber material, and the second adhesive layer 45 is used to fit the fixed ring plate 11 and the mounting ring plate 12. When the opposite surfaces of the fixed ring plate 11 and the mounting ring plate 12 are pressed against the first adhesive layer 44, the first adhesive layer 44 seals the gap between the fixed ring plate 11, the mounting ring plate 12 and the conduction plate 2, thereby reducing gas leakage. When the opposite surfaces of the fixed ring plate 11 and the mounting ring plate 12 are pressed against the second adhesive layer 45, the second adhesive layer 45 seals the gap between the fixed ring plate 11, the mounting ring plate 12 and the sealing plate 3, thereby reducing gas leakage.

[0042] In order to reduce the possibility of gas leakage caused by the movement of the conduction plate 2 and the blocking plate 3, refer to Figures 7 to 10A group of outer guide seats 51 are symmetrically installed on one side of the conducting plate 2 and one side of the blocking plate 3. An outer guide groove 52 is provided on the opposite surface of the outer guide seat 51, and the outer guide groove 52 passes through the end wall of the outer guide seat 51. A group of inner guide seats 61 are installed on the other side of the conducting plate 2 and the other side of the blocking plate 3. An inner guide groove 62 is provided on the opposite surface of the inner guide seat 61, and the inner guide groove 62 passes through the end wall of the inner guide seat 61. An outer guide ring 5 is sleeved on the mounting ring plate 12, and the outer guide ring 5 and the mounting ring plate 12 are welded to each other. The outer guide groove 52 is provided for the outer guide ring 5 to be inserted and slidable, and the inner wall of the outer guide groove 52 is used to fit with the outer wall of the outer guide ring 5. An inner guide ring 6 is sleeved on the fixed ring plate 11, and the inner guide ring 6 and the fixed ring plate 11 are welded to each other. The inner guide groove 62 is provided for the inner guide ring 6 to be inserted and slidable, and the inner wall of the inner guide groove 62 is used to fit with the outer wall of the inner guide ring 6. When the conduction plate 2 moves between the mounting ring plate 12 and the fixed ring plate 11, the outer guide ring 5 slides along the outer guide seat 51 on the conduction plate 2, and the inner guide ring 6 slides along the inner guide seat 61 on the conduction plate 2. When the blocking plate 3 moves between the mounting ring plate 12 and the fixed ring plate 11, the outer guide ring 5 slides along the outer guide seat 51 on the blocking plate 3, and the inner guide ring 6 slides along the inner guide seat 61 on the blocking plate 3. In the process of relative movement between the outer guide ring 5 and the outer guide seat 51, the outer guide ring 5 slides along the outer guide groove 52 provided on the outer guide seat 51; in the process of relative movement between the inner guide ring 6 and the inner guide seat 61, the inner guide ring 6 slides along the inner guide groove 62 provided on the inner guide seat 61. Therefore, when the conduction plate 2 and the blocking plate 3 move between the mounting ring plate 12 and the fixed ring plate 11, the conduction plate 2 and the blocking plate 3 are not easily offset, thereby reducing the gas leakage. And during the installation process of the mounting ring plate 12 and the fixed ring plate 11, the conducting plate 2 and the sealing plate 3 can be placed on the mounting ring plate 12 through the outer guide seat 51, and the conducting plate 2 and the sealing plate 3 can also be placed on the fixed ring plate 11 through the inner guide seat 61, so as to facilitate the mounting ring plate 12 and the fixed ring plate 11 to be fastened together.

[0043] The implementation principle of the online maintenance device for the gas drainer implemented in the present application is as follows: when the upper valve 92 is working normally, the conduction plate 2 is installed between the fixed ring plate 11 and the mounting ring plate 12, and the gas condensate flows through the conduction hole 21 on the conduction plate 2. When the downcomer 93 is severely corroded and needs to be repaired or the upper valve 92 needs to be replaced, first remove the fasteners between the fixed ring plate 11, the mounting ring plate 12 and the conduction plate 2, and then use one end of the blocking plate 3 to abut against one end of the conduction plate 2, and then push the blocking plate 3 to drive the conduction plate 2 to move, so that the blocking plate 3 replaces the conduction plate 2 and is inserted between the fixed ring plate 11 and the mounting ring plate 12, so that the blocking plate 3 cuts off the connecting pipe 1, so that the gas and condensate stop flowing to the upper valve 92. When the down pipe 93 between the collecting cover 91 and the upper valve 92 is severely corroded and needs to be disassembled and replaced, the blocking plate 3 cannot seal the bottom of the connecting pipe 1 because the fixed ring plate 11 at the bottom of the connecting pipe 1 is separated from the mounting ring plate 12. At this time, the conducting plate 2 at the top of the connecting pipe 1 can only be disassembled, and then the blocking plate 3 is used to seal the top of the connecting pipe 1, so that the gas and condensed water stop flowing to the upper valve 92. When the collecting cover 91 is welded due to severe corrosion, the top of the connecting pipe 1 and the bottom of the collecting cover 91 are welded together. If the down pipe 93 is severely corroded and needs to be repaired or the upper valve 92 needs to be replaced, the conducting plate 2 at the bottom of the connecting pipe 1 can only be disassembled, and then the blocking plate 3 is installed between the fixed ring plate 11 and the mounting ring plate 12 at the bottom of the connecting pipe 1, and the bottom of the connecting pipe 1 is cut off by the blocking plate 3, so that the gas and condensed water stop flowing to the upper valve 92. Furthermore, when the upper valve 92 is severely corroded, the gas transmission pipeline 95 does not need to be shut down. By closing the top or bottom end of the connecting pipe 1, the connecting pipe 1 is closed to achieve the effect of online maintenance of the upper valve 92. Moreover, since the structure of the connecting pipe 1 is simpler than that of the valve, the failure rate of the connecting pipe 1 is lower than that of the valve.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An online maintenance device for a gas drainer, comprising a connecting pipe (1), wherein both ends of the connecting pipe (1) are fixedly provided with a fixing ring plate (11), and a mounting ring plate (12) is detachably provided on a side of the fixing ring plate (11) away from the connecting pipe (1), characterized in that: A conduction plate (2) is arranged between the opposite surfaces of the fixed ring plate (11) and the mounting ring plate (12); a conduction hole (21) is provided through the conduction plate (2); the fixed ring plate (11) and the mounting ring plate (12) are both detachably connected to the conduction plate (2); a blocking plate (3) is arranged on the connecting pipe (1); the blocking plate (3) is used to be inserted between the opposite surfaces of the fixed ring plate (11) and the mounting ring plate (12).

2. The online maintenance device for a gas drainer according to claim 1, characterized in that: A plurality of locking holes (4) are formed through the fixing ring plate (11) and the mounting ring plate (12), and locking screws (41) are inserted into the locking holes (4). A group of locking nuts (42) are threadedly connected to the locking screws (41). The fixing ring plate (11) and the mounting ring plate (12) are located between the locking nuts (42), and the locking nuts (42) are used to abut against the fixing ring plate (11) and the mounting ring plate (12).

3. The online maintenance device for a gas drainer according to claim 2, characterized in that: A plurality of positioning holes (43) are formed through the conduction plate (2) and the blocking plate (3), and the locking screws (41) are inserted into the positioning holes (43).

4. The online maintenance device for a gas drainer according to claim 3, characterized in that: A first adhesive layer (44) is fixedly disposed on the top of the conduction plate (2) and the bottom of the conduction plate (2), and the first adhesive layer (44) is used to fit the fixed ring plate (11) and the mounting ring plate (12).

5. The online maintenance device for a gas drainer according to claim 3, characterized in that: A second adhesive layer (45) is fixedly disposed on the top of the blocking plate (3) and the bottom of the blocking plate (3), and the second adhesive layer (45) is used to fit the fixing ring plate (11) and the mounting ring plate (12).

6. The online maintenance device for a gas drainer according to claim 1, characterized in that: An outer guide ring (5) is sleeved on the mounting ring plate (12), and the outer guide ring (5) is fixedly connected to the mounting ring plate (12). A group of outer guide seats (51) are fixedly arranged on one side of the conduction plate (2) and one side of the blocking plate (3). An outer guide groove (52) is provided on the opposite surface of the outer guide seat (51), and the outer guide groove (52) penetrates the end wall of the outer guide seat (51). The outer guide groove (52) is used for the outer guide ring (5) to be inserted and slidable, and the inner wall of the outer guide groove (52) is used to fit with the outer wall of the outer guide ring (5).

7. The online maintenance device for a gas drainer according to claim 6, characterized in that: An inner guide ring (6) is sleeved on the fixed ring plate (11), and the inner guide ring (6) is fixedly connected to the fixed ring plate (11). A group of inner guide seats (61) are fixedly arranged on the other side of the conduction plate (2) and the other side of the blocking plate (3). An inner guide groove (62) is provided on the opposite surface of the inner guide seat (61). The inner guide groove (62) penetrates the end wall of the inner guide seat (61). The inner guide groove (62) is used for the inner guide ring (6) to be inserted and slidable, and the inner wall of the inner guide groove (62) is used to fit with the outer wall of the inner guide ring (6).

8. The online maintenance device for a gas drainer according to claim 6, characterized in that: The conducting plate (2) has a square cross section, and the blocking plate (3) has a square cross section.

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