Boiler pipe heat exchange device

Abstract

The present invention discloses a boiler pipeline heat exchange device, which relates to the field of leakage detection technology, including a boiler structure and a human-machine interaction device. The boiler structure includes a support frame 1, a heat-insulating furnace body, a combustion furnace and a burner. A leakage monitoring module and a pipeline heat exchange structure are arranged inside the boiler structure. The pipeline heat exchange structure includes a flue gas heat exchange structure and a smoke exhaust structure. When a rupture occurs in one of a plurality of pressure-bearing pipes 1, a plurality of pressure-bearing pipes 2 or a plurality of pressure-bearing pipes 3 used for pressure heat exchange, the setting of the leakage monitoring module enables the leakage to be discovered in time, and avoids the situation that the leakage is not discovered until the water flows into the combustion furnace and affects the normal operation of the boiler structure. After the leakage monitoring module feeds back the leakage to the human-machine interaction device, the human-machine interaction device immediately controls the flue gas heat exchange structure to implement corresponding emergency measures, maintains the normal operation of the flue gas heat exchange structure, provides time for the staff to formulate a remedial plan, and reduces economic losses.

Description

Technical Field

[0001] The invention relates to the technical field of leakage detection, in particular to a boiler pipeline heat exchange device. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. In the pipeline heat exchange structure of the boiler, a pressure pipe is set to utilize the flue gas.

[0003] However, high-temperature flue gas flows inside the pressure pipe, and high-temperature and high-pressure liquid flows outside the pressure pipe, resulting in a relatively harsh working environment for the pressure pipe. However, the existing heat exchange pressure pipes are directly connected to the economizer from the combustion chamber. As a result, when a heat exchange pressure pipe ruptures, water will flow directly into the combustion chamber. A small amount of water will be evaporated by the flame inside the combustion chamber or accumulated in the combustion chamber. It will only be discovered when the leakage affects the normal operation of the boiler. Moreover, the heat exchange pressure pipe can only be inspected and repaired after the boiler stops working, resulting in a long inspection time interval for the heat exchange pressure pipe and a large hidden danger. Summary of the invention

[0004] The object of the present invention is to provide a boiler pipe heat exchange device to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A boiler pipeline heat exchange device, including a boiler structure and a human-machine interaction device, wherein the boiler structure includes a support frame, a heat-insulating furnace body, a combustion furnace and a burner, wherein a leakage monitoring module and a pipeline heat exchange structure are arranged inside the boiler structure, wherein the pipeline heat exchange structure includes a flue gas heat exchange structure and a smoke exhaust structure, wherein the flue gas heat exchange structure includes a flue gas diversion box and a flue gas rotary box, wherein a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group are arranged between the flue gas diversion box and the flue gas rotary box, wherein a transmission frame is arranged inside the flue gas rotary box, wherein the transmission frame and the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group are connected to each other. Flow control and positioning components are provided between the three heat exchange tube groups, a partition frame 1 and two partition frames 2 are fixedly connected inside the flue gas diversion box, one end of the second heat exchange tube group is inserted into the partition frame 1, the two partition frames 2 are arranged between the side of the first heat exchange tube group away from the partition frame 1 and the side of the third heat exchange tube group away from the partition frame 1, a sealing plate is provided between the two partition frames 2, a forward and reverse motor is provided on one side of the sealing plate, a trigger-type drainage component is provided between the sealing plate and the partition frame 1, and the leakage monitoring module includes pressure sensor 2, liquid level sensor 2 and two liquid level sensors 1.

[0007] Preferably, the insulation furnace body is fixedly installed on the top of the support frame, the combustion furnace is fixedly inserted on the insulation furnace body, the burner is fixedly installed on one end of the combustion furnace arranged on the outside of the insulation furnace body, the flue gas diversion box and the flue gas rotation box are both fixedly installed inside the insulation furnace body, the flue gas diversion box is fixedly sleeved on one end of the combustion furnace arranged inside the insulation furnace body, and the flue gas rotation box is fixedly sleeved on the outside of the combustion furnace at a position away from the flue gas diversion box.

[0008] Preferably, a steam control valve, two pressure relief valves, an instrument frame and a solenoid valve are fixedly installed on the insulation furnace body, a temperature sensor and a pressure sensor are fixedly installed on the instrument frame, a guide tube is fixedly installed on the bottom end of the solenoid valve, a water supply pump is fixedly installed on one end of the guide tube, and the water supply pump and the human-computer interaction device are both fixedly installed on a support frame.

[0009] Preferably, one end of the first heat exchange tube group extends to between the side of one of the partition frames 2 away from the sealing plate and the partition frame 1, and one end of the third heat exchange tube group extends to between the side of the other partition frame 2 away from the sealing plate and the partition frame 1. The first heat exchange tube group includes a plurality of pressure tubes 1, the second heat exchange tube group includes a plurality of pressure tubes 2, and the third heat exchange tube group includes a plurality of pressure tubes 3. One end of the combustion furnace is arranged between the two sealing plates, and the two liquid level sensors 1 are respectively fixedly installed on the bottom of both sides of the sealing plate.

[0010] Preferably, the forward and reverse motor casing is fixedly connected to the inner wall of the flue gas diversion box, a transmission rod 2 is fixedly installed on the output end of the forward and reverse motor, the transmission rod 2 is rotatably connected to the flue gas diversion box, the sealing plate is fixedly sleeved on the outside of the transmission rod 2, a brake is sleeved on the outside of the transmission rod 2, the brake is fixedly connected to the forward and reverse motor casing, a sealing ring 2 is fixedly connected to the side of the partition frame 2 close to the sealing plate, and a baffle 1 is fixedly connected inside the partition frame 2.

[0011] Preferably, the trigger-type drainage assembly includes a three-way valve, a connecting pipe 2 is fixedly connected between the normally closed end of the three-way valve and the partition frame 1, the liquid level sensor 2 is fixedly installed inside the connecting pipe 2, the normally open end of the three-way valve is fixedly installed with a connecting pipe 1, an arc-shaped telescopic pipe is fixedly connected between the connecting pipe 1 and the sealing plate, a guide cavity is provided on the sealing plate, one end of the guide cavity is communicated with the inside of the arc-shaped telescopic pipe, a water retaining block is provided at the bottom of the inner cavity of the guide cavity, sealing rings 2 are provided on both sides of the water retaining block, the sealing rings 2 are fixedly connected to the sealing plate, a sealing ring 3 is fixedly connected to the side of the sealing ring 2 close to the water retaining block, and transmission rods are fixedly connected to both sides of the water retaining block 3. The end of the transmission rod 3 away from the water retaining block is fixedly connected with a baffle 2, the outer side of the transmission rod 3 is sleeved with a support frame 2, the support frame 2 is fixedly connected to the sealing plate, two spring-type telescopic rods are fixedly connected between the support frame 2 and the water retaining block, one end of the three-way valve is fixedly connected with a connecting pipe 3, one end of the connecting pipe 3 passes through the flue gas diversion box and the side wall of the insulation furnace body and is fixedly connected to a junction box, the pressure sensor 2 is fixedly inserted on the junction box, the junction box is fixedly installed on the outside of the insulation furnace body, the top and bottom of the junction box are fixedly connected with solenoid valve 2, the upper solenoid valve 2 is fixedly installed with a water supply pump, and the lower solenoid valve 2 is fixedly installed with a water pump.

[0012] Preferably, the flow control and positioning assembly includes an air duct, a motion box arranged inside the air duct, a transmission rod 1 fixedly connected to one end of the motion box, and a sealing ring 1 fixedly installed inside the air duct, a sealing ring 1 fixedly connected inside the sealing ring 1, a humidity sensor fixedly installed inside the motion box, a filter screen is arranged on the side of the humidity sensor away from the transmission rod 1, the filter screen is fixedly connected to the motion box, a sealing ring 1 installed on one side of the first heat exchange tube group, a sealing ring 1 installed on one side of the second heat exchange tube group and a sealing ring 1 installed on one side of the third heat exchange tube group are increasingly far away from adjacent motion boxes, a hydraulic cylinder is fixedly installed inside the flue gas rotary box, one end of the hydraulic cylinder is fixedly connected to the transmission frame, a telescopic rod is fixedly installed between the transmission frame and the inner wall of the flue gas diversion box, a drain valve is fixedly connected to the bottom of the flue gas rotary box, and the drain valve part is fixedly installed on the outer bottom of the insulation furnace body.

[0013] Preferably, the smoke exhaust structure includes solenoid valve three, one end of the solenoid valve three penetrates the outer wall of the insulation furnace body and the outer wall of the flue gas diversion box and then extends to one side of the third heat exchange tube group, the other end of the solenoid valve three is fixedly connected to smoke exhaust pipe three, one end of the smoke exhaust pipe three is fixedly connected to smoke exhaust pipe two, the bottom of the smoke exhaust pipe two is fixedly connected to a gate valve, and the gate valve and the smoke diversion box are fixedly connected to exhaust pipe one.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When one of the multiple pressure-bearing tubes 1, 2 or 3 used for pressure heat exchange in the flue gas heat exchange structure of the present application is broken, the setting of the leakage monitoring module enables the leakage to be discovered in time, avoiding the situation where water flows into the combustion furnace and affects the normal operation of the boiler structure. After the leakage monitoring module feeds back the leakage to the human-machine interaction device, the human-machine interaction device immediately controls the flue gas heat exchange structure to implement corresponding emergency measures, maintains the normal operation of the flue gas heat exchange structure, provides time for the staff to formulate a remedial plan, and reduces economic losses.

[0016] 2. The present application can control the operation of the flue gas heat exchange structure through human-computer interaction equipment during the operation of the boiler structure and the pipeline heat exchange structure, and complete the closed leakage detection of multiple pressure pipes one, multiple pressure pipes two and multiple pressure pipes three without affecting the normal operation of the boiler structure and the pipeline heat exchange structure.

[0017] 3. The flue gas heat exchange structure in the present application can change the working state. Before water is poured into the interior of the insulation furnace body, the leakage detection of multiple pressure-bearing pipes 1, 2 and 3 that play the role of pressure-bearing heat exchange is completed, and the pressure-bearing pipe 1, 2 and 3 are detected separately, which can effectively reduce the time cost investment required for maintenance and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the smoke rotary box of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the smoke diversion box of the present invention;

[0021] Figure 4 It is a schematic diagram of the partial structure of the heat preservation furnace body of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the transmission frame of the present invention;

[0023] Figure 6 For the present invention Figure 5 A magnified view of the structure at A;

[0024] Figure 7 It is a schematic diagram of the partial structure of the airway of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the sports box of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the smoke exhaust structure of the present invention;

[0027] Fig.10 For the present invention Fig. 9 A magnified view of the structure at B;

[0028] Fig.11 It is a structural schematic diagram of a partition frame 1 of the present invention;

[0029] Fig.12 It is a schematic diagram of the partial structure of the sealing plate of the present invention;

[0030] Fig.13 It is a structural schematic diagram of the water retaining block of the present invention;

[0031] Fig.14 It is a structural schematic diagram of the combiner box of the present invention.

[0032] Numbers in the figure: 1. Boiler structure; 11. Support frame 1; 12. Insulation furnace body; 13. Combustion furnace; 14. Solenoid valve 1; 16. Flow guide pipe; 17. Water supply pump 1; 18. Pressure relief valve; 19. Steam control valve; 110. Instrument rack; 111. Temperature sensor; 112. Pressure sensor 1; 113. Burner; 2. Flue gas heat exchange structure; 21. Flue gas diversion box; 22. Flue gas rotary box; 23. Pressure pipe 1; 24. Pressure pipe 2; 25. Pressure pipe 3; 26. Hydraulic cylinder; 27. Transmission frame; 211. Telescopic rod; 212. Air guide pipe; 213. Transmission rod 1; 214. Movement box; 215. Sealing ring 1; 216. Sealing ring 1; 217. Humidity sensor; 218. Filter; 219. Drain valve; 220. Forward and reverse motor; 221. Brake; 222. Transmission Rod 2; 223, sealing plate; 224, partition frame 1; 225, partition frame 2; 226, sealing ring 2; 227, baffle 1; 228, arc-shaped telescopic tube; 229, diversion cavity; 230, water retaining block; 231, sealing ring 2; 232, sealing ring 3; 233, transmission rod 3; 234, support frame 2; 235, spring-type telescopic rod; 236, baffle 2; 237, connecting pipe 1; 23 8. Three-way valve; 239. Connecting pipe 2; 240. Connecting pipe 3; 241. Junction box; 242. Solenoid valve 2; 243. Water supply pump; 244. Water pump; 3. Liquid level sensor 1; 4. Liquid level sensor 2; 5. Smoke exhaust structure; 51. Smoke exhaust pipe 1; 52. Gate valve; 53. Smoke exhaust pipe 2; 54. Smoke exhaust pipe 3; 55. Solenoid valve 3; 6. Human-computer interaction equipment; 9. Pressure sensor 2. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example: Figure 1-Figure 14 As shown, the present invention provides a technical solution for a boiler pipe heat exchange device:

[0035] The boiler structure 1 of the present application includes a support frame 11 that plays a supporting role. A water-storing heat preservation furnace body 12 is fixedly installed on the top of the support frame 11. A combustion furnace 13 that provides a space for combustion is fixedly inserted on the heat preservation furnace body 12. A burner 113 is fixedly installed on one end of the combustion furnace 13 that is arranged on the outside of the heat preservation furnace body 12. The burner 113 sprays flames into the combustion furnace 13 to heat the water inside the heat preservation furnace body 12. A steam control valve 19 for discharging steam, two pressure relief valves 18 for safe pressure relief, and an instrument connected to the inside of the heat preservation furnace body 12 are fixedly installed on the heat preservation furnace body 12. The instrument frame 110 is fixedly mounted with a temperature sensor 111 for detecting the internal temperature of the insulation furnace body 12 and a pressure sensor 112 for detecting the internal pressure of the insulation furnace body 12. A solenoid valve 14 is also fixedly connected to one side of the insulation furnace body 12. A water supply pump 17 is fixedly mounted on one end of a guide pipe 16 fixedly mounted at the bottom of the solenoid valve 14 to control the water supply pump 17 to pump water and the solenoid valve 14 to open, so as to inject water into the insulation furnace body 12. The water supply pump 17 and the human-computer interaction device 6 are fixedly mounted at a relatively low position on the support frame 11 to facilitate operation by the staff.

[0036] A pipeline heat exchange structure is installed inside the boiler structure 1 to utilize the high-temperature flue gas generated by the flame combustion inside the combustion furnace 13. The pipeline heat exchange structure is mainly composed of a flue gas heat exchange structure 2 and a smoke exhaust structure 5. The specific working process of the pipeline heat exchange structure is as follows:

[0037] Since the flue gas diversion box 21 and the flue gas rotation box 22 in the flue gas heat exchange structure 2 are respectively fixedly installed on both sides of the interior of the heat preservation furnace body 12, the flue gas diversion box 21 is fixedly sleeved on one end of the combustion furnace 13 arranged inside the heat preservation furnace body 12, and the flue gas rotation box 22 is fixedly sleeved on the outer side of the combustion furnace 13 away from the flue gas diversion box 21. A flue gas rotation chamber is formed between the flue gas rotation box 22 and the inner wall of the heat preservation furnace body 12. A first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group are arranged between the flue gas diversion box 21 and the flue gas rotation box 22. The first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group connect the interior of the flue gas diversion box 21 with the flue gas rotation chamber, such as Fig. 9 As shown;

[0038] A partition frame 1 224 and two partition frames 225 are fixedly connected inside the flue gas diversion box 21. One end of the second heat exchange tube group is connected to the interior of the partition frame 1 224. The partition frame 1 224 separates the second heat exchange tube group from the first heat exchange tube group, the third heat exchange tube group and one end of the combustion furnace 13 arranged inside the flue gas diversion box 21. After the flue gas inside the combustion furnace 13 enters the flue gas diversion box 21, it can only enter the flue gas rotating chamber through the first heat exchange tube group and the third heat exchange tube group. After entering the flue gas rotating chamber, the flue gas returns to the flue gas diversion box 21 through the second heat exchange tube group, and the exhaust pipe 1 51 in the exhaust structure 5 is fixedly connected to the interior of the flue gas diversion box 21. Fig. 9 As shown, the bottom end of the smoke exhaust pipe 51 is connected to the space where the partition frame 224 is located, and the smoke returning to the inside of the smoke diversion box 21 is discharged through the smoke exhaust pipe 51. The gate valve 52 fixedly connected to the smoke exhaust pipe 51 is connected to the economizer or dust collector through the smoke exhaust pipe 2 53 to process the smoke.

[0039] The first heat exchange tube group is composed of a plurality of pressure-bearing tubes 23 made of heat-conducting materials, the second heat exchange tube group is composed of a plurality of pressure-bearing tubes 24 made of heat-conducting materials, and the third heat exchange tube group is composed of a plurality of pressure-bearing tubes 25 made of heat-conducting materials. Therefore, during the movement of the flue gas, heat exchange will be carried out with the water inside the insulation furnace body 12, thereby utilizing the heat in the flue gas and improving the efficiency of resource utilization.

[0040] Embodiment 1:

[0041] Since multiple pressure-bearing pipes 1 23, multiple pressure-bearing pipes 24, and multiple pressure-bearing pipes 3 25 need to be set with thinner pipe walls to improve heat exchange efficiency, and high-temperature flue gas flows inside the pressure-bearing pipes 1 23, pressure-bearing pipes 24, and pressure-bearing pipes 3 25, and the outsides of the pressure-bearing pipes 1 23, pressure-bearing pipes 24, and pressure-bearing pipes 3 25 are subjected to the high pressure of water inside the insulation furnace body 12, the pressure-bearing pipes 1 23, pressure-bearing pipes 24, and pressure-bearing pipes 3 25 have a high probability of rupture and leakage, a trigger-type drainage component is set between the sealing plate 223 and the partition frame 1 224 inside the flue gas diversion box 21 to drain the pressure-bearing pipes 1 23, pressure-bearing pipes 24, and pressure-bearing pipes 3 2 5 is used to monitor whether there is leakage. Since the two sides of the sealing plate 223 are provided with partition frames 225, the two symmetrically arranged partition frames 225 are fixedly installed between the partition frame 1 224 and the inner wall of the smoke diversion box 21, and one end of the first heat exchange tube group extends to the side of one of the partition frames 225 away from the sealing plate 223 and the partition frame 1 224, and one end of the third heat exchange tube group extends to the side of the other partition frame 225 away from the sealing plate 223 and the partition frame 1 224, and one end of the combustion furnace 13 is arranged between the two partition frames 225. When the sealing plate 223 is in the initial state, the position of the sealing plate 223 is as follows: Fig.11As shown, it is located at the bottom of the inner cavity of the flue gas diversion box 21. At this time, the flue gas discharged from the combustion furnace 13 into the flue gas diversion box 21 can enter the first heat exchange tube group and the third heat exchange tube group.

[0042] Since the two liquid level sensors 3 in the leakage monitoring module are fixedly installed at the bottom of both sides of the sealing plate 223, and the liquid level sensor 3 is positioned toward the bottom of the inner cavity of the flue gas diversion box 21, when a pressure-bearing tube 23 in the first heat exchange tube group ruptures and leaks, water will enter the flue gas diversion box 21 through the pressure-bearing tube 23 and accumulate at the bottom of the inner cavity of the flue gas diversion box 21. The liquid level sensor 3 fixedly installed on the side of the sealing plate 223 close to the first heat exchange tube group detects an increase in the bottom water level, and the data detected by the liquid level sensor 3 is fed back to the human-machine interaction device 6. The human-machine interaction device 6 controls the forward and reverse motor 220 fixedly connected to the inner wall of the flue gas diversion box 21 to rotate forward, and the forward and reverse motor 220 drives the transmission rod 222 fixedly installed at the output end to rotate 45°, and the transmission rod 222 connected to the flue gas diversion box 21 is rotated. The second 222 rotates inside the flue gas diversion box 21, and finally the sealing plate 223 fixedly sleeved on the outer side of the second transmission rod 222 rotates 45° clockwise; the second partition frame 225 is fixedly installed with a sealing ring 226 on the side close to the sealing plate 223. After the rotation of the sealing plate 223 is completed, the sealing ring 226 is squeezed and deformed by the sealing plate 223, and the sealing ring 226 increases the sealing between the sealing plate 223 and the second partition frame 225. At this time, the end of the first heat exchange tube group arranged inside the flue gas diversion box 21 is sealed by the partition frame 1 224, the sealing plate 223 and the partition frame 225 close to the first heat exchange tube group, so that the first heat exchange tube group and the third heat exchange tube group are separated and no longer connected, and the end of the multiple pressure tubes 1 23 in the first heat exchange tube group arranged inside the flue gas diversion box 21 is sealed;

[0043] While the transmission rod 222 is working, the human-machine interaction device 6 controls the hydraulic cylinder 26 fixedly installed inside the smoke rotary box 22 to work according to the first state, and the hydraulic cylinder 26 pushes the transmission frame 27 to move a certain distance. Since a flow control positioning component is arranged between the transmission frame 27 and the first heat exchange tube group, and between the second heat exchange tube group and the third heat exchange tube group, the flow control positioning component is composed of an air guide tube 212, a motion box 214 arranged inside the air guide tube 212, a transmission rod 1 213 fixedly connected to one end of the motion box 214, and a sealing ring 1 215 fixedly installed inside the air guide tube 212, as shown in FIG. Figure 6As shown, the transmission rod 1 213 is fixedly connected to the transmission frame 27, the air pipe 212 close to the pressure pipe 1 23 is fixedly connected to the pressure pipe 1 23, the air pipe 212 close to the pressure pipe 24 is fixedly connected to the pressure pipe 24, and the air pipe 212 close to the pressure pipe 3 25 is fixedly connected to the pressure pipe 3 25, so the moving transmission frame 27 drives the moving box 214 to move inside the air pipe 212 through the transmission rod 1 213, and when the air pipe 212 cannot move, the moving box 214 moves inside the sealing ring 1 215 fixed inside the air pipe 212;

[0044] It should be noted that in actual applications, flow control and positioning components are installed between multiple pressure-bearing tubes 1 23 and the transmission frame 27 in the first heat exchange tube group, between multiple pressure-bearing tubes 24 and the transmission frame 27 in the second heat exchange tube group, and between multiple pressure-bearing tubes 3 25 and the transmission frame 27 in the third heat exchange tube group, and the sealing ring 1 215 in the flow control and positioning component set at one end of the pressure-bearing tube 1 23, the sealing ring 1 215 in the flow control and positioning component set at one end of the pressure-bearing tube 24, and the sealing ring 1 215 in the flow control and positioning component set at one end of the pressure-bearing tube 3 25 are increasingly far away from the adjacent motion box 214, such as Figure 7 As shown, after the hydraulic cylinder 26 completes the work in the first state, the moving box 214 in the air guide pipe 212 fixed at one end of the multiple pressure-bearing tubes 23 in the first heat exchange tube group enters and stays inside the sealing ring 215, and the sealing ring 216 that can be deformed and fixedly connected inside the sealing ring 215 increases the sealing between the two. At this time, the multiple flow control positioning components installed between the multiple pressure-bearing tubes 23 and the transmission frame 27 enter the closed state, and the end of the pressure-bearing tube 23 set inside the flue gas rotary box 22 is sealed, and the two ends of the multiple pressure-bearing tubes 23 in the first heat exchange tube group are in the sealing assembly, and the flue gas heat exchange structure 2 enters the first closed state;

[0045] At this time, the remaining moving boxes 214 do not affect the normal ventilation inside the air guide tube 212 due to the distance between them and the sealing ring 1 215. The multiple flow control positioning components installed between the multiple pressure-bearing tubes 24 and the transmission frame 27 and the multiple flow control positioning components installed between the multiple pressure-bearing tubes 3 25 and the transmission frame 27 are all in an open state.

[0046] In summary, when a certain pressure-bearing tube 23 in the first heat exchange tube group ruptures and leaks, the liquid level sensor 3 fixedly installed on the sealing plate 223 near one side of the first heat exchange tube group detects that the bottom water level has increased, and the forward and reverse motor 220 rotates forward for a period of time, so that the sealing plate 223 rotates 45° clockwise, and one end of the first heat exchange tube group is isolated by the partition frame 1 224, the sealing plate 223 and the partition frame 2 225 near the first heat exchange tube group, so that the first heat exchange tube group and the third heat exchange tube group are separated and no longer connected, and the end of the pressure-bearing tube 23 in the first heat exchange tube group arranged inside the flue gas diversion box 21 is sealed, and when the transmission rod 222 is working, the hydraulic cylinder 26 works according to the first state, and the moving box 214 in the multiple air guide pipes 212 arranged on one side of the first heat exchange tube group enters and stays in the sealing ring 1 215 Internally, the flow control and positioning components installed on multiple pressure-bearing pipes 23 enter a closed state, one end of the pressure-bearing pipe 23 arranged inside the flue gas rotary box 22 is sealed, the two ends of the first heat exchange tube group are sealed and isolated, and the flue gas heat exchange structure 2 enters a first closed state, isolating the first heat exchange tube group with a leakage problem from the second heat exchange tube group and the third heat exchange tube group, thereby preventing a large amount of water inside the insulation furnace body 12 from entering the flue gas diverter box 21 and the flue gas rotary box 22, and preventing water from entering the combustion furnace 13 through the flue gas diverter box 21, thereby protecting the combustion furnace 13 and the burner 113 and reducing economic losses; and at this time, the second heat exchange tube group and the third heat exchange tube group can work normally, which can meet the working flue gas heat exchange and emission needs of the boiler structure 1, and provide time for the staff to coordinate the operation of the boiler structure 1 to shut down safely, thereby reducing unexpected losses.

[0047] When a pressure tube 3 25 in the third heat exchange tube group ruptures and leaks, the bottom water level detected by the liquid level sensor 1 3 fixedly installed on the side of the sealing plate 223 near the third heat exchange tube group increases, and the human-machine interaction device 6 that receives the feedback from the liquid level sensor 1 3 controls the forward and reverse motor 220 to reverse, and the forward and reverse motor 220 drives the sealing plate 223 to rotate 45° counterclockwise, and the sealing plate 223 moves toward the partition frame 2 25 close to the third heat exchange tube group. Finally, the sealing plate 223, the partition frame 1 224 and the partition frame 2 225 cooperate to set the third heat exchange tube group at the flue gas separation One end of the flow box 21 is isolated; at the same time, the hydraulic cylinder 26 works in the second state, so that the moving box 214 in the air guide pipe 212 arranged on one side of the multiple pressure-bearing pipes 25 enters and stays in the sealing ring 215, and the flow control and positioning assembly installed on the pressure-bearing pipe 25 enters a closed state, and the pressure-bearing pipe 25 is arranged at one end inside the flue gas rotary box 22 and is sealed, and the third heat exchange tube group is arranged at one end inside the flue gas rotary box 22 and is sealed, so that the third heat exchange tube group is separated from the first heat exchange tube group and the second heat exchange tube group, and the flue gas heat exchange structure 2 enters a second closed state.

[0048] Based on the above embodiment, embodiment 2 is as follows:

[0049] The three-way valve 238 in the trigger-type drainage assembly is fixedly installed with a connecting pipe 237 at the normally open end, and an arc-shaped telescopic pipe 228 is fixedly connected between the connecting pipe 237 and the sealing plate 223. The upper end of the guide cavity 229 opened on the sealing plate 223 is connected to the inside of the arc-shaped telescopic pipe 228, and a water retaining block 230 is provided at the bottom of the inner cavity of the guide cavity 229. The water retaining block 230 cuts off the guide cavity 229. Fig.12 As shown, the left and right ends of the diversion cavity 229 are in a disconnected state with the upper end of the diversion cavity 229; transmission rods 3 233 are fixedly connected on both sides of the water retaining block 230, and the ends of the two transmission rods 3 233 away from the water retaining block 230 are fixedly connected with baffles 236, and the support frame 234 sleeved on the outer side of the transmission rod 3 233 is fixedly connected with the sealing plate 223, and the support frame 234 plays a role in limiting the transmission rod 3 233, so that the transmission rod 3 233 and the water retaining block 230 can only move horizontally inside the diversion cavity 229, and a spring-type telescopic rod 235 is fixedly connected between the support frame 234 and the water retaining block 230, and under the support of multiple elastically retractable spring-type telescopic rods 235, the water retaining block 230 maintains a truncated state inside the diversion cavity 229;

[0050] Since the two partition frames 225 are both fixedly connected with baffle 1 227 inside, when the sealing plate 223 moves toward the partition frame 225, the baffle 236 first contacts with the baffle 1 227. At this time, the sealing plate 223 continues to move toward the partition frame 225, so the baffle 236 is subjected to force, and the baffle 236 pushes the water retaining block 230 to move through the transmission rod 3 233; when the sealing plate 223 rotates clockwise, the water retaining block 230 moves under the action of the baffle 1 227 and the baffle 236 close to the first heat exchange tube group, and the water retaining block 230 moves away from the first heat exchange tube group. Sealing rings 231 are provided on both sides of the water retaining block 230, and the water retaining block 230 is finally blocked by the sealing ring 3 in the direction of movement. 232 blocks and limits, when the sealing plate 223 stops moving and forms a sealing structure with the partition frame 225, the water retaining block 230 cooperates with the sealing ring 231 far away from the first heat exchange tube group to form a sealing column. After the water retaining block 230 moves, the upper part of the guide cavity 229 is connected with the left end of the guide cavity 229, and the left end of the guide cavity 229 is connected with the space where the first heat exchange tube group is located. When the flue gas heat exchange structure 2 enters the first closed state, the arc-shaped telescopic tube 228 is connected with the bottom of one side of the space where the first heat exchange tube group is located through the guide cavity 229; the sealing ring 231 is fixedly installed with a sealing ring 3 232 on one side facing the water retaining block 230, and the sealing ring 3 232 increases the sealing between the water retaining block 230 and the sealing ring 231;

[0051] Similarly, when a certain pressure-bearing tube 3 25 in the third heat exchange tube group ruptures, the sealing plate 223 rotates counterclockwise, the water retaining block 230 moves away from the third heat exchange tube group, and the water retaining block 230 cooperates with the sealing ring 231 close to the first heat exchange tube group to form a sealing column. At this time, the upper part of the guide cavity 229 is connected with the right end of the guide cavity 229, so when the flue gas heat exchange structure 2 enters the second closed state, the arc-shaped telescopic tube 228 is connected to the bottom of one side of the space where one end of the third heat exchange tube group is located through the guide cavity 229;

[0052] The arc-shaped telescopic tube 228 that telescopes along an arc trajectory penetrates a partition frame 225, so the clockwise or counterclockwise rotation of the sealing plate 223 will not affect the connection between the guide cavity 229 and the arc-shaped telescopic tube 228; one end of the connecting pipe 3 240 to which one end of the three-way valve 238 is fixedly connected penetrates the flue gas diversion box 21 and the side wall of the insulation furnace body 12 and is fixedly connected to the junction box 241, and the junction box 241 fixedly installed on the outside of the insulation furnace body 12 is fixedly connected to the top and bottom of the electromagnetic valve 242, and the lower electromagnetic valve 242 is fixedly installed with a water pump 244 for pumping water;

[0053] After the staff drains the water from the insulation furnace body 12, the lower solenoid valve 242 can be controlled to be fixed open, and the water pump 244 can be controlled to pump water. At this time, the water pump 244 pumps water through the open lower solenoid valve 242, the junction box 241, the connecting pipe 3 240, the three-way valve 238, the connecting pipe 1 237, the arc-shaped telescopic pipe 228 and the guide cavity 229 opened on the sealing plate 223, so as to pump out the water leaked into the flue gas diversion box 21, so as to prevent the water entering the flue gas diversion box 21 from flowing into the insulation furnace body 12 or the combustion furnace 13 when the first heat exchange tube group and the third heat exchange tube group are repaired and replaced, thereby reducing pollution.

[0054] Based on the above embodiments, Embodiment 3 is as follows:

[0055] When a pressure-bearing pipe 24 in the second heat exchange pipe group leaks, a connecting pipe 239 is fixedly connected between the normally closed end of the three-way valve 238 and the partition frame 1 224. The connecting pipe 239 is arranged at one side of the bottom of the inner cavity of the partition frame 1 224. Fig.11As shown, at this time, the liquid level sensor 24 installed on the top of the inner cavity of the connecting pipe 239 in the leakage monitoring module detects that the water level at the bottom increases, and the human-machine interaction device 6 that receives the feedback of the liquid level sensor 24 in real time controls the hydraulic cylinder 26 to work according to the third state. At this time, the moving box 214 in the air guide pipe 212 set at one end of the multiple pressure-bearing pipes 24 in the second heat exchange tube group enters and stays inside the sealing ring 1 215, and the flow control positioning component installed on the pressure-bearing pipe 24 enters a closed state, and the pressure-bearing pipe 3 25 is set at one end inside the flue gas rotary box 22 and is sealed. The second heat exchange tube group is set at one end inside the flue gas rotary box 22 and is sealed, so that the second heat exchange tube group is separated from the first heat exchange tube group and the third heat exchange tube group. The flue gas heat exchange structure 2 enters the third closed state, and one end of the second heat exchange tube group arranged inside the flue gas diversion box 21 is separated from the first heat exchange tube group and the third heat exchange tube group by the partition frame 1 224. At this time, the rupture and leakage of the pressure-bearing tube 24 in the second heat exchange tube group will not affect the normal operation of the third heat exchange tube group and the first heat exchange tube group; the movement box 214 installed at one end of the pressure-bearing tube 1 23 and the pressure-bearing tube 3 25 does not affect the normal ventilation inside the air guide pipe 212 due to the distance between the movement box 214 and the sealing ring 1 215. The multiple flow control positioning components installed between the third heat exchange tube group and the transmission frame 27, and between the first heat exchange tube group and the transmission frame 27 are all in the open state, and the third heat exchange tube group and the first heat exchange tube group work normally;

[0056] The gate valve 52 in the smoke exhaust structure 5 is synchronously controlled to stop working and close, so as to prevent water from affecting the gate valve 52 and the economizer or dust collector installed through the smoke exhaust pipe 2 53, thereby avoiding losses; while the hydraulic cylinder 26 is working, the forward and reverse motor 220 is controlled to drive the sealing plate 223 to rotate 45° counterclockwise, and the sealing plate 223, the partition frame 1 224 and the partition frame 225 cooperate to isolate the third heat exchange tube group from the first heat exchange tube group at one end inside the smoke diverter box 21. At this time, the smoke from the combustion furnace 13 entering the smoke diverter box 21 enters the smoke diverter box through the first heat exchange tube group. The flue gas is then returned to the flue gas diversion box 21 through the third heat exchange tube group to complete the flue gas heat exchange work, and the solenoid valve 3 55 arranged at one end of the third heat exchange tube group in the smoke exhaust structure 5 is synchronously controlled to open, and the flue gas is discharged through the solenoid valve 3 55 and the smoke exhaust pipe 3 54 fixedly installed between the solenoid valve 3 55 and the gate valve 52. Therefore, when the pressure pipe 24 in the second heat exchange tube group ruptures, the boiler structure 1 and the flue gas heat exchange structure 2 will not immediately lose their working ability, providing time for the staff to arrange the boiler structure 1 to stop working;

[0057] After the interior of the insulation furnace body 12 is emptied, the partition frame 224 can be controlled to pump water, the lower solenoid valve 242 can be controlled to open, the normally closed end of the three-way valve 238 can be controlled to open, and the water pump 244 can pump water from the interior of the partition frame 224 through the open lower solenoid valve 242, the junction box 241, the connecting pipe 3 240, the three-way valve 238 and the connecting pipe 2 239.

[0058] In summary, when one of the multiple pressure-bearing pipes 1 23, multiple pressure-bearing pipes 24 or multiple pressure-bearing pipes 3 25 used for pressure heat exchange in the flue gas heat exchange structure 2 is broken, the setting of the leakage monitoring module enables the leakage to be discovered in time and avoids the situation where the leakage is not discovered until the water flows into the combustion furnace 13. After the leakage monitoring module feeds back the leakage to the human-machine interaction device 6, the human-machine interaction device 6 immediately controls the flue gas heat exchange structure 2 to implement corresponding emergency measures, maintain the normal operation of the flue gas heat exchange structure 2, provide time for the staff to formulate a remedial plan, and reduce economic losses.

[0059] Based on the above embodiments, the fourth embodiment is as follows:

[0060] A humidity sensor 217 is fixedly installed inside the moving box 214, and a filter screen 218 is arranged on the side of the humidity sensor 217 away from the transmission rod 213. Figure 8 As shown in the figure, the filter screen 218 fixedly connected to the moving box 214 faces the direction of the smoke, and the impurities in the smoke are blocked by the filter screen 218 and will not cover the humidity sensor 217; when a certain pressure tube 1 23 in the first heat exchange tube group, a certain pressure tube 24 in the second heat exchange tube group, or a certain pressure tube 3 25 in the third heat exchange tube group is broken, the flow control positioning component where the humidity sensor 217 is located is in a closed state, and at this time, the water in the air guide pipe 212 passes through the filter screen 218 and contacts the humidity sensor 217, and the high-pressure water makes the nearest The humidity sensor 217 detects the humidity change. As the leakage time increases, multiple humidity sensors 217 detect the pressure change in turn. The human-computer interaction device 6 receives feedback from multiple humidity sensors 217. The human-computer interaction device 6 can lock the position of the broken pressure pipe 1 23, pressure pipe 2 24 or pressure pipe 3 25 according to the position of the humidity sensor 217 that first detects the data. It can accurately locate the position of the broken pressure pipe 1 23, pressure pipe 2 24 or pressure pipe 3 25, providing convenience for subsequent maintenance.

[0061] Based on the above embodiments, Embodiment 5 is as follows:

[0062] The human-machine interaction device 6 can be used to control the flue gas heat exchange structure 2 to enter the first closed state during the operation of the boiler structure 1 and the pipeline heat exchange structure, so that both ends of the first heat exchange tube group are sealed. At this time, flue gas no longer flows inside the pressure tube 23, and the humidity sensor 217 is controlled to work. If a pressure tube 23 is broken, water will enter the pressure tube 23. As time goes by, some water will gather in the flue gas rotary box 22. Since the liquid level sensor 3 is set at the bottom of multiple pressure tubes 23, the liquid level sensor 3 will first detect the When the water level on one side increases, the water level in the air duct 212 fixedly connected to one end of the broken pressure-bearing pipe 23 increases, which will cause the humidity sensor 217 set on one side of the broken pressure-bearing pipe 23 to detect the humidity change first, thereby completing the positioning of the broken pressure-bearing pipe 23; similarly, the flue gas heat exchange structure 2 can be controlled to enter the second closed state and the third closed state successively, and the closed leakage detection of multiple pressure-bearing pipes 23, multiple pressure-bearing pipes 24 and multiple pressure-bearing pipes 3 25 can be completed without affecting the normal operation of the boiler structure 1 and the pipeline heat exchange structure.

[0063] Based on the above embodiments, the sixth embodiment is as follows:

[0064] The humidity sensor 217 can be controlled to work all the time. When the moisture content of the smoke blowing toward the humidity sensor 217 increases to above a preset value due to water leakage, the human-computer interaction device 6 controls the smoke heat exchange structure 2 to perform the airtight leakage detection provided in Example 5 to eliminate safety hazards.

[0065] Based on the above embodiments, Embodiment 7 is as follows:

[0066] The pressure sensor 29 is fixedly inserted into the junction box 241. Figure 3 As shown, a water supply pump 243 for delivering water is fixedly installed on the electromagnetic valve 242 fixed on the upper part of the combiner box 241;

[0067] When the flue gas heat exchange structure 2 is controlled to enter the first closed state, the water supply pump 243 is controlled to work, and the upper electromagnetic valve 242 is controlled to work and open. At this time, the water supply pump 243 injects liquid into the multiple pressure-bearing tubes 1 23 in the first heat exchange tube group through the opened electromagnetic valve 242, the junction box 241, the connecting pipe 3 240, the three-way valve 238, the connecting pipe 1 237, the arc-shaped telescopic tube 228 and the guide cavity 229 opened on the sealing plate 223. Since both ends of the pressure-bearing tube 1 23 are in a sealed state at this time, the liquid is discharged from the first heat exchange tube group. state, so the internal hydraulic pressure of the pressure pipe 23 increases. After a period of time, the water supply pump 243 and the solenoid valve 242 are controlled to stop working. The pressure sensor 29 inserted on the junction box 241 detects the internal hydraulic pressure of the junction box 241. The detection result of the pressure sensor 29 is fed back to the human-machine interaction device 6. When the pressure pipe 23 is ruptured and leaks, the internal hydraulic pressure of the junction box 241 decreases, and the data detected by the pressure sensor 29 changes. The human-machine interaction device 6 determines that there is a leaking or ruptured pressure pipe 23.

[0068] After the flue gas heat exchange structure 2 is controlled to enter the second closed state, the water supply pump 243 is controlled to work, and the upper electromagnetic valve 242 is controlled to work and open. At this time, the water supply pump 243 injects liquid into the multiple pressure-bearing pipes 3 25 in the third heat exchange tube group through the opened electromagnetic valve 242, the junction box 241, the connecting pipe 3 240, the three-way valve 238, the connecting pipe 1 237, the arc-shaped telescopic pipe 228 and the guide cavity 229 opened on the sealing plate 223, so as to complete the closed leakage detection of the pressure-bearing pipe 3 25;

[0069] After controlling the flue gas heat exchange structure 2 to enter the third closed state, the water supply pump 243 is controlled to work, the normally closed end of the three-way valve 238 is controlled to open, and the upper solenoid valve 242 is controlled to work and open. At this time, the water supply pump 243 injects liquid into the interior of multiple pressure-bearing pipes 24 in the second heat exchange tube group through the opened solenoid valve 242, the junction box 241, the connecting pipe 3 240, the three-way valve 238 and the connecting pipe 2 239 fixedly installed between the three-way valve 238 and the partition frame 1 224, thereby completing the closed leakage detection of the pressure-bearing pipe 24.

[0070] The flue gas heat exchange structure 2 provided in the present application can change the working state. Before water is poured into the interior of the insulation furnace body 12, it completes the leakage detection of multiple pressure-bearing pipes 1 23, multiple pressure-bearing pipes 24 and multiple pressure-bearing pipes 3 25 that play a role in pressure heat exchange, and detects the pressure-bearing pipe 1 23, pressure-bearing pipe 2 24 and pressure-bearing pipe 3 25 separately, which can effectively reduce the time cost investment required for maintenance and positioning.

[0071] In addition, such as Figure 5As shown, a drain valve 219 is fixedly connected to the bottom of the flue gas rotary box 22. The drain valve 219 is partially fixedly installed on the outer bottom of the heat preservation furnace body 12. The drain valve 219 is controlled to open to discharge the water inside the flue gas rotary box 22. A telescopic rod 211 is fixedly installed between the transmission frame 27 and the inner wall of the flue gas diversion box 21. The telescopic rod 211 can be extended to limit the movement of the transmission frame 27 to ensure that the movement box 214 enters the sealing ring 215.

[0072] In addition, such as Fig. 9 and Fig.10 As shown, a brake 221 is provided on the outer side of the transmission rod 222, and the brake 221 is fixedly connected to the outer shell of the forward and reverse motor 220. After the forward and reverse motor 220 works to drive the position of the sealing plate 223 through the transmission rod 222, the brake 221 is controlled to work to lock the position of the transmission rod 222, so that the sealing plate 223 is kept in a stable state, reducing the force on the internal structure of the forward and reverse motor 220.

[0073] In addition, when the two liquid level sensors 13 detect water level data at the same time, the human-machine interaction device 6 receiving feedback from the two liquid level sensors 13 controls the burner 113 to stop working, so as to prevent the water inside the insulation furnace body 12 from passing through the combustion furnace 13 to damage the working burner 113; when the liquid level sensor 13 and the liquid level sensor 24 near the first heat exchange tube group detect water level data at the same time, the human-machine interaction device 6 receiving feedback from the liquid level sensor 13 and the liquid level sensor 24 controls the burner 113 to stop working, controls the forward and reverse motor 220 to work forward, and rotates the sealing plate 223 45° clockwise. One end of the first heat exchange tube group located inside the flue gas diversion box 21 is isolated from the combustion furnace 13 to prevent water from entering the combustion furnace 13; when the liquid level sensor 13 and the liquid level sensor 24 close to the third heat exchange tube group simultaneously detect water level data, the human-computer interaction device 6 that receives feedback from the liquid level sensor 13 and the liquid level sensor 24 controls the burner 113 to stop working, controls the forward and reverse motor 220 to reverse, and rotates the sealing plate 223 counterclockwise by 45°, so as to isolate one end of the third heat exchange tube group located inside the flue gas diversion box 21 from the combustion furnace 13 to prevent water from entering the combustion furnace 13 and reduce losses.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A boiler pipeline heat exchange device, comprising a boiler structure (1) and a human-machine interaction device (6), wherein the boiler structure (1) comprises a support frame (11), a heat-insulating furnace body (12), a combustion furnace (13) and a burner (113), wherein a leakage monitoring module and a pipeline heat exchange structure are arranged inside the boiler structure (1); the heat-insulating furnace body (12) is fixedly mounted on the top of the support frame (11), the combustion furnace (13) is fixedly inserted on the heat-insulating furnace body (12), and the burner (113) is fixedly mounted on one end of the combustion furnace (13) arranged on the outside of the heat-insulating furnace body (12), characterized in that: The pipeline heat exchange structure comprises a flue gas heat exchange structure (2) and a smoke exhaust structure (5), the smoke exhaust structure (5) comprises a smoke exhaust pipe (51), the flue gas heat exchange structure (2) comprises a smoke diversion box (21) and a smoke rotation box (22), the smoke diversion box (21) and the smoke rotation box (22) are respectively fixedly installed on both sides of the interior of the heat-insulating furnace body (12), the smoke diversion box (21) is fixedly sleeved on one end of the combustion furnace (13) arranged inside the heat-insulating furnace body (12), the smoke rotation box (22) is fixedly sleeved on the outside of the combustion furnace (13) at a position away from the smoke diversion box (21), and the smoke rotation box (22) is connected to the heat-insulating furnace body (12). A smoke rotating chamber is formed between the inner walls; a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group are arranged between the smoke diversion box (21) and the smoke rotating box (22); the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group connect the interior of the smoke diversion box (21) with the smoke rotating chamber; a transmission frame (27) is arranged inside the smoke rotating box (22); flow control positioning components are arranged between the transmission frame (27) and the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group; a partition frame 1 (224) and two partition frames 2 (225) are fixedly connected inside the smoke diversion box (21); one end of the second heat exchange tube group is inserted into the second heat exchange tube group; Inside the partition frame 1 (224), the second heat exchange tube group is separated from the first heat exchange tube group, the third heat exchange tube group and one end of the combustion furnace (13) arranged inside the smoke diversion box (21) by the partition frame 1 (224); after the smoke inside the combustion furnace (13) enters the smoke diversion box (21), it can only enter the smoke rotation chamber through the first heat exchange tube group and the third heat exchange tube group; after the smoke enters the smoke diversion chamber, it returns to the smoke diversion box (21) through the second heat exchange tube group; the smoke exhaust pipe 1 (51) in the smoke exhaust structure (5) is fixedly connected to the inside of the smoke diversion box (21); the bottom end of the smoke exhaust pipe 1 (51) is connected to the partition frame 1 (224) The spaces are connected, and the smoke returned to the smoke diversion box (21) is discharged through the smoke exhaust pipe one (51). The two partition frames two (225) are arranged between the side of the first heat exchange tube group away from the partition frame one (224) and the side of the third heat exchange tube group away from the partition frame one (224). A sealing plate (223) is arranged between the two partition frames two (225). A forward and reverse motor (220) is arranged on one side of the sealing plate (223). A trigger-type drainage component is arranged between the sealing plate (223) and the partition frame one (224). The leakage monitoring module includes a pressure sensor two (9), a liquid level sensor two (4) and two liquid level sensors one (3); One end of the first heat exchange tube group extends to between a side of one of the partition frames 2 (225) away from the sealing plate (223) and the partition frame 1 (224), and one end of the third heat exchange tube group extends to between a side of another partition frame 2 (225) away from the sealing plate (223) and the partition frame 1 (224), the first heat exchange tube group includes a plurality of pressure-bearing tubes 1 (23), the second heat exchange tube group includes a plurality of pressure-bearing tubes 2 (24), and the third heat exchange tube group includes a plurality of pressure-bearing tubes 3 (25), one end of the combustion furnace (13) is arranged between the two partition frames 2 (225), and the two liquid level sensors 1 (3) are respectively fixedly mounted on the bottoms of both sides of the sealing plate (223); The housing of the forward and reverse motor (220) is fixedly connected to the inner wall of the smoke diversion box (21); a second transmission rod (222) is fixedly mounted on the output end of the forward and reverse motor (220); the second transmission rod (222) is rotatably connected to the smoke diversion box (21); the sealing plate (223) is fixedly sleeved on the outside of the second transmission rod (222); a brake (221) is sleeved on the outside of the second transmission rod (222); the brake (221) is fixedly connected to the housing of the forward and reverse motor (220); a second sealing ring (226) is fixedly connected to the side of the second partition frame (225) close to the sealing plate (223); and a baffle plate (227) is fixedly connected inside the second partition frame (225); The trigger-type drainage assembly comprises a three-way valve (238), a connecting pipe (237) being fixedly mounted on a normally open end of the three-way valve (238), an arc-shaped telescopic pipe (228) being fixedly connected between the connecting pipe (237) and the sealing plate (223), a flow guide cavity (229) being provided on the sealing plate (223), and one end of the flow guide cavity (229) being in communication with the interior of the arc-shaped telescopic pipe (228); A water retaining block (230) is provided at the bottom of the inner cavity of the diversion cavity (229). The water retaining block (230) cuts off the diversion cavity (229) so that the left and right ends of the diversion cavity (229) and the upper end of the diversion cavity (229) are not connected. Sealing rings (231) are provided on both sides of the water retaining block (230). The sealing rings (231) are fixedly connected to the sealing plate (223). The side of the sealing ring (231) close to the water retaining block (230) is fixedly connected to a sealing ring (232). The side of the sealing ring (231) close to the water retaining block (230) is fixedly connected to a transmission rod (233). The end of the transmission rod (233) away from the water retaining block (230) is fixedly connected to a Baffle plate 2 (236), a support frame 2 (234) is sleeved on the outer side of the transmission rod 3 (233), the support frame 2 (234) is fixedly connected to the sealing plate (223), the support frame 2 (234) plays a role in limiting the transmission rod 3 (233), so that the transmission rod 3 (233) and the water retaining block (230) can only move horizontally inside the diversion cavity (229), two spring-type telescopic rods (235) are fixedly connected between the support frame 2 (234) and the water retaining block (230), one end of the three-way valve (238) is fixedly connected to a connecting pipe 3 (240), one end of the connecting pipe 3 (240) passes through the flue gas diversion box (21) and the side of the heat preservation furnace body (12) A junction box (241) is fixedly connected behind the wall, the second pressure sensor (9) is fixedly inserted on the junction box (241), the junction box (241) is fixedly installed on the outside of the heat-insulating furnace body (12), the top and bottom of the junction box (241) are fixedly connected to the second solenoid valve (242), the second solenoid valve (242) at the top is fixedly installed with a water supply pump (243), and the second solenoid valve (242) at the bottom is fixedly installed with a water pump (244), when the sealing plate (223) rotates clockwise, the water retaining block (230) moves under the action of the first baffle plate (227) and the second baffle plate (236) close to the first heat exchange tube group, and the water retaining block (230) moves away from the first heat exchange tube group. The water retaining block (230) is finally blocked and limited by the sealing ring three (232) in the moving direction. When the sealing plate (223) stops moving and forms a sealing structure with the partition frame two (225), the water retaining block (230) cooperates with the sealing ring two (231) away from the first heat exchange tube group to form a sealing column. After the water retaining block (230) moves, the upper part of the guide cavity (229) is connected to the left end of the guide cavity (229), and the left end of the guide cavity (229) is connected to the space where the first heat exchange tube group is located. When the flue gas heat exchange structure (2) enters the first closed state, the arc-shaped telescopic tube (228) is connected to the bottom of one side of the space where the first heat exchange tube group is located through the guide cavity (229); The flow control and positioning assembly comprises an air guide tube (212), a movement box (214) disposed inside the air guide tube (212), a transmission rod (213) fixedly connected to one end of the movement box (214), and a sealing ring (215) fixedly installed inside the air guide tube (212), a sealing ring (216) fixedly connected inside the sealing ring (215), the transmission rod (213) being fixedly connected to a transmission frame (27), and the air guide tube (212) close to the pressure-bearing tube (23) being fixedly connected to the pressure-bearing tube (23). , the air guide pipe (212) close to the second pressure-bearing pipe (24) is fixedly connected to the second pressure-bearing pipe (24), and the air guide pipe (212) close to the third pressure-bearing pipe (25) is fixedly connected to the third pressure-bearing pipe (25), so that the moving transmission frame (27) drives the movement box (214) to move inside the air guide pipe (212) through the transmission rod 1 (213), and when the air guide pipe (212) cannot move, the movement box (214) moves inside the sealing ring 1 (215) fixed inside the air guide pipe (212); A hydraulic cylinder (26) is fixedly installed inside the flue gas rotary box (22), one end of the hydraulic cylinder (26) is fixedly connected to a transmission frame (27), a telescopic rod (211) is fixedly installed between the transmission frame (27) and the inner wall of the flue gas diversion box (21), and a drain valve (219) is fixedly connected to the bottom of the flue gas rotary box (22), and a portion of the drain valve (219) is fixedly installed on the outer bottom of the heat-insulating furnace body (12); when a pressure-bearing tube (23) in the first heat exchange tube group ruptures and leaks, a liquid level sensor (3) fixedly installed on one side of the sealing plate (223) close to the first heat exchange tube group detects an increase in the bottom water level, and the forward and reverse motor (220) rotates forward for a period of time, causing the sealing plate (223) to rotate 45° clockwise, and one end of the first heat exchange tube group arranged inside the flue gas diversion box (21) is diverted. The partition frame 1 (224), the sealing plate (223) and the partition frame 2 (225) close to the first heat exchange tube group cooperate to isolate each other, so that the first heat exchange tube group and the third heat exchange tube group are separated and no longer connected. The pressure tube 1 (23) in the first heat exchange tube group is sealed at one end inside the flue gas diversion box (21). When the transmission rod 2 (222) works, the hydraulic cylinder (26) works according to the first state. The moving box (214) in the multiple air guide tubes (212) arranged on one side of the first heat exchange tube group enters and stays inside the sealing ring 1 (215). The flow control positioning components installed on the multiple pressure tubes 1 (23) enter the closed state. The pressure tube 1 (23) is sealed at one end inside the flue gas rotary box (22). The two ends of the first heat exchange tube group are sealed and isolated, and the flue gas heat exchange structure (2) enters the first closed state.

2. The boiler pipe heat exchange device according to claim 1, characterized in that: A steam control valve (19), two pressure relief valves (18), an instrument frame (110) and a solenoid valve (14) are fixedly mounted on the heat-insulating furnace body (12); a temperature sensor (111) and a pressure sensor (112) are fixedly mounted on the instrument frame (110); a flow guide pipe (16) is fixedly mounted on the bottom end of the solenoid valve (14); a water supply pump (17) is fixedly mounted on one end of the flow guide pipe (16); and the water supply pump (17) and the human-machine interaction device (6) are both fixedly mounted on the support frame (11).

3. The boiler pipe heat exchange device according to claim 1, characterized in that: The smoke exhaust structure (5) comprises a solenoid valve three (55), one end of the solenoid valve three (55) penetrates the outer wall of the heat preservation furnace body (12) and the outer wall of the smoke diversion box (21) and then extends to one side of the third heat exchange tube group, the other end of the solenoid valve three (55) is fixedly connected to a smoke exhaust pipe three (54), one end of the smoke exhaust pipe three (54) is fixedly connected to a smoke exhaust pipe two (53), the bottom of the smoke exhaust pipe two (53) is fixedly connected to a gate valve (52), and the smoke exhaust pipe one (51) is fixedly connected between the gate valve (52) and the smoke diversion box (21).

4. The boiler pipe heat exchange device according to claim 1, characterized in that: A humidity sensor (217) is fixedly installed inside the movement box (214); a filter screen (218) is provided on a side of the humidity sensor (217) away from the transmission rod 1 (213); the filter screen (218) is fixedly connected to the movement box (214); and a sealing ring 1 (215) installed on one side of the first heat exchange tube group, a sealing ring 1 (215) installed on one side of the second heat exchange tube group, and a sealing ring 1 (215) installed on one side of the third heat exchange tube group are increasingly distant from adjacent movement boxes (214).

5. The boiler pipe heat exchange device according to claim 1, characterized in that: A second connecting pipe (239) is fixedly connected between the normally closed end of the three-way valve (238) and the first partition frame (224), and the second liquid level sensor (4) is fixedly installed inside the second connecting pipe (239).

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