A temperature monitoring device for a fan of a thermal power unit and a monitoring method thereof

Abstract

The application discloses a temperature monitoring device for a fan of a thermoelectric unit and a monitoring method thereof, and relates to the technical field of temperature monitoring. The existing temperature monitoring device is usually fixedly installed, and can only monitor a small monitoring surface and is difficult to adjust the monitoring range, so that the temperature change in the fan heat exchange process cannot be comprehensively monitored, and the temperature data accuracy is affected. One end in the fan temperature monitoring cavity is fixedly installed with a fan mounting plate; further comprising: a temperature monitoring plate fixedly installed at the front and rear ends of the fan mounting plate, a through hole is arranged at the middle position of the temperature monitoring plate, a temperature monitoring net rack is installed inside the through hole, and a plurality of annular frames are fixedly installed on the outer wall of the temperature monitoring net rack; a temperature monitoring mechanism is fixedly installed above the annular frame, a sliding block is fixedly installed below the middle position of the temperature monitoring mechanism, and a sliding rail is fixedly installed below the sliding block.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of temperature monitoring, in particular to a temperature monitoring device for a fan of a thermoelectric unit and a monitoring method thereof. BACKGROUND

[0002] A power plant produces both electric energy and heat energy by using steam from a steam turbine generator to supply heat to users, which is a production mode that refers to a process of simultaneously producing electric and heat energy, and is more fuel-efficient than separately producing electric and heat energy. A thermal power plant that operates in a cogeneration mode is referred to as a heat and power plant, and the same unit is referred to as a cogeneration unit. In the heat and power unit, the condenser plays a role in heat exchange, and in the heat exchange process, auxiliary heat exchange is usually performed by air cooling.

[0003] The existing temperature monitoring device is usually fixedly installed, which can only monitor a small area and is difficult to adjust the monitoring range, so that it is difficult to comprehensively monitor the temperature change during the heat exchange of the fan, affecting the accuracy of the temperature data. Therefore, we provide a temperature monitoring device for a fan of a heat and power unit and a monitoring method thereof. SUMMARY

[0004] The purpose of the present application is to provide a temperature monitoring device for a fan of a heat and power unit and a monitoring method thereof to solve the problem of the existing temperature monitoring device being usually fixedly installed, which can only monitor a small area and is difficult to adjust the monitoring range, so that it is difficult to comprehensively monitor the temperature change during the heat exchange of the fan, affecting the accuracy of the temperature data.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a temperature monitoring device for a fan of a heat and power unit, comprising a fan temperature monitoring cavity, one end of the inside of the fan temperature monitoring cavity is fixedly installed with a fan mounting plate;

[0006] Further comprising:

[0007] A temperature monitoring plate is fixedly installed at the front and rear ends of the fan mounting plate, a through hole is arranged at the middle position of the temperature monitoring plate, a temperature monitoring grid is installed inside the through hole, and a plurality of annular frames are fixedly installed on the outer wall of the temperature monitoring grid.

[0008] A temperature monitoring mechanism is fixedly installed above the annular frame, a sliding block is fixedly installed below the middle position of the temperature monitoring mechanism, a sliding rail is fixedly installed below the sliding block, and the sliding rail is fixedly installed on the outer wall of the annular frame, a control mechanism is fixedly installed on the outer wall of the temperature monitoring mechanism, an infrared temperature sensor is fixedly installed on the outer wall of the control mechanism, and the output end of the infrared temperature sensor is electrically connected with the input end of the control mechanism.

[0009] Preferably, the outer wall of both sides of the annular frame is fixedly installed with a rack, the outer wall of the rack is engagedly installed with a gear, the upper side of the gear is fixedly installed with a second motor, the output end of the second motor is provided with a second transmission rod, and the second motor is in transmission connection with the gear through the second transmission rod.

[0010] Preferably, the outer wall of the upper surface of the fan temperature monitoring cavity is fixedly installed with a general controller, the input end of the general controller is in Bluetooth connection with the output end of the control mechanism, one side of the general controller is fixedly installed with a thermal imaging screen, and the output end of the general controller is in electric connection with the input end of the thermal imaging screen.

[0011] Preferably, the lower side of the temperature monitoring plate is fixedly installed with a third motor, the output end of the third motor is provided with a third transmission rod, the third motor is in transmission connection with the temperature monitoring net rack through the third transmission rod, and the upper end of the temperature monitoring net rack is installed with a driven rod.

[0012] Preferably, the middle position of the fan mounting plate is fixedly installed with a fan frame, the outer wall of both ends of the fan frame is fixedly installed with a plurality of fan support rods, and the fan support rods are fixedly installed with a motor seat.

[0013] Preferably, the inside of the fan frame is fixedly installed with a first motor, the output end of the first motor is provided with a first transmission rod, one end of the first transmission rod is fixedly installed with a fan rotating block, the output end of the first motor is in transmission connection with the fan rotating block through the first transmission rod, and the outer wall of the fan rotating block is fixedly installed with a plurality of annularly distributed fan blades.

[0014] Preferably, the lower side of the annular frame is fixedly installed with a plurality of support frames, the end position of the support frame is fixedly installed with a displacement sensor, and the output end of the displacement sensor is in Bluetooth connection with the input end of the control mechanism.

[0015] Preferably, the other end inside the fan temperature monitoring cavity is fixedly installed with a condenser, the lower end of the condenser is fixedly installed with an air inlet pipe, and the upper end of the condenser is fixedly installed with an exhaust pipe.

[0016] Preferably, one end of the air inlet pipe and the exhaust pipe is fixedly installed with a heat engine set mechanism through a flange.

[0017] Preferably, a monitoring method of a temperature monitoring device of an upper fan of a heat engine set, comprising the following steps:

[0018] Step one: hot air at the heat engine set mechanism enters the condenser for heat exchange, the gas gradually cools down in the process of flowing, and then is discharged from the exhaust pipe to the heat engine set mechanism for circulation;

[0019] Step two: the first motor is used for driving the first transmission rod and the fan rotating block to rotate, and the rotating process drives the multiple fan blades distributed in a ring to rotate, so that the fan blades drive the external gas to assist heat exchange at the condenser, and the heat exchange efficiency is improved;

[0020] Step three: the temperature monitoring mechanism is used for monitoring the temperature change in the heat exchange process, the infrared temperature sensor is used for monitoring the infrared heat radiation at the condenser, the obtained data is fed back to the control mechanism, the control mechanism is fed back to the general controller, and finally the thermal imaging is performed on the thermal imaging screen, so that the user knows the temperature change of the place, since the gas enters the inlet pipe and is discharged from the discharge pipe, the gas is closer to the discharge pipe, and the temperature change is higher than before entering, the traditional fixed monitoring device cannot monitor the change process, the second motor drives the second transmission rod and the gear to rotate, the gear is engaged with the rack during rotation, so that the temperature monitoring mechanism moves, the sliding block and the sliding rail are matched, so that the temperature monitoring mechanism can move in a ring on the outermost ring-shaped frame, the infrared temperature sensor can be moved to the bottom of the ring-shaped frame, the bottom of the ring-shaped frame is at the same horizontal plane with the inlet pipe, so that the temperature monitoring mechanism can monitor the temperature change of the gas just entering the inlet pipe, and the temperature monitoring mechanism can monitor the temperature change of the gas from the inlet pipe to the discharge pipe by moving upwards, and finally the temperature change of the discharge pipe at the top of the ring-shaped frame is monitored, so that the temperature monitoring process is more comprehensive, and the data precision is improved;

[0021] Step four: the temperature monitoring plate at the rear end can be driven by the third motor to rotate the third transmission rod and the temperature monitoring net frame, so that the temperature monitoring mechanism can be turned to face the rear end of the fan mounting plate, the temperature monitoring mechanism can monitor the gas temperature and the first motor temperature during the fan heat exchange process, the innermost ring-shaped frame has the smallest volume, and it is also closer to the first motor, the temperature monitoring mechanism is installed on the outer wall of the innermost ring-shaped frame, so that the temperature monitoring precision is higher, the temperature monitoring range is more comprehensive, and the temperature monitoring net frame is turned again, so that the temperature monitoring mechanism faces outward, and the temperature of the discharged gas is monitored.

[0022] Compared with the prior art, the beneficial effects of the present application are:

[0023] 1. The temperature monitoring mechanism is used for monitoring the temperature change in the heat exchange process, infrared thermal radiation monitoring is carried out on the condenser by using an infrared temperature sensor, the obtained data is fed back to the control mechanism, the control mechanism is fed back to the total controller, and finally thermal imaging is carried out on the thermal imaging screen, so that the user knows the temperature change of the place, since the gas enters from the air inlet pipe and is discharged from the discharge pipe, the closer the gas is to the discharge pipe, the higher the temperature change compared with before entering, the traditional fixed monitoring device is difficult to monitor the change process, the second motor drives the second transmission rod and the gear to rotate, the gear is engaged with the rack during rotation Transmission makes the temperature monitoring mechanism move, the sliding block and the slide rail make the temperature monitoring mechanism can move in a ring on the outermost ring-shaped frame, the infrared temperature sensor can be moved to the bottom of the ring-shaped frame through the ring-shaped movement, the bottom of the ring-shaped frame is in the same horizontal plane with the air inlet pipe, so that the temperature monitoring mechanism can monitor the temperature change of the air inlet pipe, and the conveying process of the gas from the air inlet pipe to the discharge pipe is monitored by moving upwards, and finally the temperature change of the discharge pipe at the top end of the ring-shaped frame is monitored, which can make the temperature monitoring process more comprehensive and improve the data accuracy.

[0024] 2. The temperature monitoring plate can be rotated by the third motor to drive the third transmission rod and the temperature monitoring net frame, so that the temperature monitoring mechanism can be turned towards the rear end of the fan mounting plate, the temperature of the gas in the fan heat exchange process and the temperature of the first motor can be monitored by the temperature monitoring mechanism, the innermost ring-shaped frame has the smallest volume, and it is also closer to the first motor, the temperature monitoring mechanism is installed on the outer wall of the innermost ring-shaped frame, so that the temperature monitoring accuracy is higher, the temperature monitoring range is more comprehensive, and the temperature monitoring net frame is turned again, so that the temperature monitoring mechanism is outward, and the temperature of the discharged gas is monitored. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure schematic diagram of the present application;

[0026] Figure 2 It is the local structure schematic diagram of the temperature monitoring plate of the present application;

[0027] Figure 3 It is the local structure schematic diagram of the temperature monitoring mechanism of the present application;

[0028] Figure 4 It is the local structure schematic diagram of the fan mounting plate of the present application;

[0029] Figure 5 It is the local structure schematic diagram of the first motor of the present application;

[0030] In the figure: 1, fan temperature monitoring cavity; 2, condenser; 3, air inlet pipe; 4, discharge pipe; 5, thermoelectric unit mechanism; 6, fan mounting plate; 7, fan rack; 8, fan support rod; 9, motor base; 10, first motor; 11, first transmission rod; 12, fan rotating block; 13, fan blade; 14, temperature monitoring plate; 15, through hole; 16, temperature monitoring net rack; 17, support frame; 18, annular frame; 19, displacement sensor; 20, temperature monitoring mechanism; 21, sliding rail; 22, sliding block; 23, rack; 24, gear; 25, second motor; 26, second transmission rod; 27, infrared temperature sensor; 28, control mechanism; 29, general controller; 30, thermal imaging screen; 31, third motor; 32, third transmission rod; 33, driven rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0032] Please refer to Figures 1-5 An embodiment provided by the present application: a temperature monitoring device for a fan on a thermoelectric unit, comprising a fan temperature monitoring cavity 1, a fan mounting plate 6 fixedly installed at one end inside the fan temperature monitoring cavity 1;

[0033] Further comprising:

[0034] A temperature monitoring plate 14 fixedly installed at the front and back ends of the fan mounting plate 6, a through hole 15 provided at the middle position of the temperature monitoring plate 14, a temperature monitoring net rack 16 installed inside the through hole 15, and a plurality of annular frames 18 fixedly installed on the outer wall of the temperature monitoring net rack 16;

[0035] A temperature monitoring mechanism 20 fixedly installed above the annular frame 18, a sliding block 22 fixedly installed below the middle position of the temperature monitoring mechanism 20, a sliding rail 21 fixedly installed below the sliding block 22, the sliding rail 21 fixedly installed on the outer wall of the annular frame 18, a control mechanism 28 fixedly installed on the outer wall of the temperature monitoring mechanism 20, an infrared temperature sensor 27 fixedly installed on the outer wall of the control mechanism 28, and the output end of the infrared temperature sensor 27 electrically connected with the input end of the control mechanism 28;

[0036] The temperature monitoring mechanism 20 is used for monitoring the temperature change in the heat exchange process. The infrared thermal radiation at the condenser 2 is monitored by using the infrared temperature sensor 27. The obtained data is fed back to the control mechanism 28, and the control mechanism 28 is fed back to the general controller 29. Finally, the thermal imaging is performed on the thermal imaging screen 30, so that the user can know the temperature change at this position. Since the gas enters from the air inlet pipe 3 and is discharged from the exhaust pipe 4, the gas is closer to the exhaust pipe 4, and the temperature change is higher than before entering. The traditional fixed monitoring device is difficult to monitor the change process. The second motor 25 drives the second transmission rod 26 to rotate with the gear 24. The gear 24 is engaged with the rack 23 during rotation to drive the temperature monitoring mechanism 20 to move. The temperature monitoring mechanism 20 can move in a ring shape on the outermost ring-shaped frame 18 by matching the sliding block 22 with the sliding rail 21. The infrared temperature sensor 27 can be moved to the bottom of the ring-shaped frame 18 by ring-shaped movement. The ring-shaped frame 18 is at the same level as the air inlet pipe 3, so that the temperature monitoring mechanism 20 can monitor the temperature change of the gas entering the air inlet pipe 3. The temperature monitoring process is more comprehensive, and the data accuracy is improved.

[0037] Please refer to Figure 3 The outer walls on both sides of the ring-shaped frame 18 are fixedly installed with the racks 23. The outer walls of the racks 23 are engaged with the gears 24. The second motor 25 is fixedly installed above the gears 24. The output end of the second motor 25 is provided with the second transmission rod 26. The second motor 25 is in transmission connection with the gear 24 through the second transmission rod 26. The second motor 25 is used to drive the second transmission rod 26 to rotate the gear 24, so that the gear 24 can be in transmission connection with the rack 23.

[0038] Please refer to Figure 1 、 Figure 3 The outer wall on the upper surface of the fan temperature monitoring cavity 1 is fixedly installed with the general controller 29. The input end of the general controller 29 is in Bluetooth connection with the output end of the control mechanism 28. One side of the general controller 29 is fixedly installed with the thermal imaging screen 30. The output end of the general controller 29 is in electrical connection with the input end of the thermal imaging screen 30. The general controller 29 is used to receive the temperature data and feed back to the thermal imaging screen 30 for the user to observe.

[0039] Please refer to Figure 1 、 Figure 2The lower side of the temperature monitoring plate 14 is fixedly installed with a third motor 31, the output end of the third motor 31 is provided with a third transmission rod 32, and the third motor 31 is in transmission connection with the temperature monitoring net rack 16 through the third transmission rod 32. The upper end of the temperature monitoring net rack 16 is installed with a driven rod 33. The third motor 31 is used to drive the third transmission rod 32 and the temperature monitoring net rack 16 to rotate. The monitoring surface can be adjusted by rotating, so that the equipment adjustment capacity and the monitoring range are improved.

[0040] Please refer to Figure 4 、 Figure 5 The middle position of the fan mounting plate 6 is fixedly installed with a fan rack 7. A plurality of fan supporting rods 8 are fixedly installed on the outer walls of the two ends of the fan rack 7. A motor seat 9 is fixedly installed between the fan supporting rods 8. The fan supporting rods 8 are used to support and fix.

[0041] Please refer to Figure 4 、 Figure 5 The inside of the fan rack 7 is fixedly installed with a first motor 10. The output end of the first motor 10 is provided with a first transmission rod 11. One end of the first transmission rod 11 is fixedly installed with a fan rotating block 12. The output end of the first motor 10 is in transmission connection with the fan rotating block 12 through the first transmission rod 11. A plurality of annularly distributed fan blades 13 are fixedly installed on the outer wall of the fan rotating block 12. The first motor 10 is used to drive the first transmission rod 11 to rotate, so that the fan rotating block 12 drives the fan blades 13 to rotate, and the airflow is driven to exchange heat by the rotating force.

[0042] Please refer to Figure 2 A plurality of supporting frames 17 are fixedly installed below the annular frame 18. A displacement sensor 19 is fixedly installed at the end position of the supporting frame 17. The output end of the displacement sensor 19 is in Bluetooth connection with the input end of the control mechanism 28. The displacement sensor 19 is used to detect the moving position of the temperature monitoring mechanism 20.

[0043] Please refer to Figure 1 The other end inside the fan temperature monitoring cavity 1 is fixedly installed with a condenser 2. The lower end of the condenser 2 is fixedly installed with an air inlet pipe 3. The upper end of the condenser 2 is fixedly installed with an exhaust pipe 4. The gas is used to enter the condenser 2 from the air inlet pipe 3 for cooling, and is discharged from the exhaust pipe 4.

[0044] Please refer to Figure 1 One end of the air inlet pipe 3 and the exhaust pipe 4 is fixedly installed with a thermoelectric generator mechanism 5 through a flange. The thermoelectric generator mechanism 5 has the effect of generating electricity.

[0045] Please refer to Figures 1-5 A monitoring method of a temperature monitoring device of a fan on a thermoelectric generator set, comprising the following steps:

[0046] Step one: hot gas at the thermoelectric unit mechanism 5 enters the condenser 2 from the air inlet pipe 3 to exchange heat, the gas gradually cools down during the flow process, and then is discharged from the exhaust pipe 4 to the thermoelectric unit mechanism 5 for circulation;

[0047] Step two: the first motor 10 is used to drive the first transmission rod 11 and the fan rotating block 12 to rotate, and in the process of rotation, it drives the multiple fan blades 13 distributed in a ring to rotate, so that the fan blades 13 drive the external gas to assist heat exchange at the condenser 2, thereby improving the heat exchange efficiency;

[0048] Step three: the temperature monitoring mechanism 20 is used to monitor the temperature change in the heat exchange process, and the infrared temperature sensor 27 is used to monitor the infrared heat radiation at the condenser 2, and the obtained data is fed back to the control mechanism 28, and the control mechanism 28 is fed back to the total controller 29, and finally the thermal imaging is performed on the thermal imaging screen 30, so that the user knows the temperature change of the place. Since the gas enters from the air inlet pipe 3 and is discharged from the exhaust pipe 4, the closer the gas is to the exhaust pipe 4, the higher the temperature change compared to before entering. The traditional fixed monitoring device cannot monitor this change process. The second motor 25 drives the second transmission rod 26 and the gear 24 to rotate, and the gear is engaged with the rack 23 during rotation, so that the temperature monitoring mechanism 20 moves. The slide block 22 and the slide rail 21 enable the temperature monitoring mechanism 20 to move in a ring on the outermost ring-shaped frame 18. Through the ring-shaped movement, the infrared temperature sensor 27 can be moved to the bottom of the ring-shaped frame 18. The bottom of the ring-shaped frame 18 is at the same level as the air inlet pipe 3, so that the temperature monitoring mechanism 20 can monitor the temperature change of the gas just entering the air inlet pipe 3, and by moving upwards, the temperature change of the gas between the air inlet pipe 3 and the exhaust pipe 4 can be monitored. Finally, the temperature change at the exhaust pipe 4 at the top of the ring-shaped frame 18 is monitored. This process can make the temperature monitoring process more comprehensive and improve the data accuracy;

[0049] Step four: the temperature monitoring plate 14 at the rear end can use the third motor 31 to drive the third transmission rod 32 and the temperature monitoring net rack 16 to rotate, so that the temperature monitoring mechanism 20 can be turned to face the rear end of the fan mounting plate 6. Through the temperature monitoring mechanism 20, the temperature of the gas in the fan heat exchange process and the temperature of the first motor 10 can be monitored. The innermost ring-shaped frame 18 has the smallest volume, and it is also closer to the first motor 10. The temperature monitoring mechanism 20 is installed on the outer wall of the innermost ring-shaped frame 18, which can make the temperature monitoring accuracy higher and the temperature monitoring range more comprehensive. By turning the temperature monitoring net rack 16 again, the temperature monitoring mechanism 20 can be turned outward to monitor the temperature of the discharged gas.

[0050] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A temperature monitoring device for a thermal power unit fan, comprising a fan temperature monitoring cavity (1), one end of the inside of the fan temperature monitoring cavity (1) is fixedly installed with a fan mounting plate (6), the middle position of the fan mounting plate (6) is fixedly installed with a fan rack (7); characterized in that Further comprising: A temperature monitoring plate (14) is fixedly installed at the front and rear ends of the fan mounting plate (6), a through hole (15) is arranged at the middle position of the temperature monitoring plate (14), a temperature monitoring net rack (16) is installed inside the through hole (15), and a plurality of annular racks (18) are fixedly installed on the outer wall of the temperature monitoring net rack (16); A temperature monitoring mechanism (20) is fixedly installed above the annular rack (18), a sliding block (22) is fixedly installed below the middle position of the temperature monitoring mechanism (20), a sliding rail (21) is fixedly installed below the sliding block (22), and the sliding rail (21) is fixedly installed on the outer wall of the annular rack (18), a control mechanism (28) is fixedly installed on the outer wall of the temperature monitoring mechanism (20), an infrared temperature sensor (27) is fixedly installed on the outer wall of the control mechanism (28), and the output end of the infrared temperature sensor (27) is electrically connected with the input end of the control mechanism (28); The outer walls on both sides of the annular rack (18) are fixedly installed with a rack (23), the outer wall of the rack (23) is meshingly installed with a gear (24), a second motor (25) is fixedly installed above the gear (24), and the output end of the second motor (25) is provided with a second transmission rod (26), and the second motor (25) is in transmission connection with the gear (24) through the second transmission rod (26); A general controller (29) is fixedly installed on the outer wall of the upper surface of the fan temperature monitoring cavity (1), and the input end of the general controller (29) is in Bluetooth connection with the output end of the control mechanism (28), a thermal imaging screen (30) is fixedly installed on one side of the general controller (29), and the output end of the general controller (29) is in electrical connection with the input end of the thermal imaging screen (30); A third motor (31) is fixedly installed below the temperature monitoring plate (14), the output end of the third motor (31) is provided with a third transmission rod (32), and the third motor (31) is in transmission connection with the temperature monitoring net rack (16) through the third transmission rod (32), and a driven rod (33) is installed at the upper end of the temperature monitoring net rack (16); A first motor (10) is fixedly installed in the inside of the fan rack (7), the output end of the first motor (10) is provided with a first transmission rod (11), one end of the first transmission rod (11) is fixedly installed with a fan rotating block (12), and the output end of the first motor (10) is in transmission connection with the fan rotating block (12) through the first transmission rod (11), and a plurality of annularly distributed fan blades (13) are fixedly installed on the outer wall of the fan rotating block (12). Another end fixed installation has condenser (2) in fan temperature monitoring chamber (1) inside, The lower extreme of condenser (2) fixed installation has intake pipe (3), The upper extreme of condenser (2) fixed installation has exhaust pipe (4); One end of intake pipe (3) and exhaust pipe (4) are fixedly installed with thermoelectric unit mechanism (5) through flange; The monitoring method comprises the following steps: Step one: hot gas at thermoelectric unit mechanism (5) enters condenser (2) from intake pipe (3) and exchanges heat, the gas is gradually cooled in the process of flowing, and then is discharged from exhaust pipe (4) to thermoelectric unit mechanism (5) for circulation; Step two: the first motor (10) is used to drive the first transmission rod (11) and the fan rotating block (12) to rotate, and the rotating process drives the multiple fan blades (13) distributed in a ring to rotate, so that the fan blades (13) drive the external gas to assist heat exchange at the condenser (2), and the heat exchange efficiency is improved; Step three: temperature monitoring mechanism (20) is used to monitor the temperature change in the heat exchange process, infrared temperature sensor (27) is used to monitor the infrared thermal radiation at condenser (2), the obtained data is fed back to control mechanism (28), control mechanism (28) is fed back to total controller (29), and finally thermal imaging is carried out at thermal imaging screen (30), so that the user knows the temperature change of the place, because the gas enters from intake pipe (3) and is discharged from exhaust pipe (4), the temperature of the gas is higher than that before entering, the second motor (25) drives the second transmission rod (26) and gear (24) to rotate, the gear (24) is engaged with rack (23) in the process of rotating, so that temperature monitoring mechanism (20) moves, and the sliding block (22) and slide rail (21) enable temperature monitoring mechanism (20) to move in a ring on the outermost ring-shaped frame (18), through the ring-shaped movement, the infrared temperature sensor (27) can be moved to the bottom of the ring-shaped frame (18), the bottom of the ring-shaped frame (18) is at the same horizontal plane with intake pipe (3), so that temperature monitoring mechanism (20) can monitor the temperature change of the gas just entering intake pipe (3), and through upward movement, the transport process of the gas from intake pipe (3) to exhaust pipe (4) is monitored, and finally the temperature change of exhaust pipe (4) at the top of ring-shaped frame (18) is monitored, in the process, the temperature monitoring process can be more comprehensive, and the data precision is improved; Step four: the temperature monitoring plate (14) of the rear end of the third motor (31) can drive the third transmission rod (32) and the temperature monitoring net rack (16) to rotate, so that the temperature monitoring mechanism (20) can be turned towards the rear end of the fan mounting plate (6), and the temperature monitoring mechanism (20) can monitor the gas temperature and the first motor (10) temperature in the fan heat exchange process. The innermost ring-shaped frame (18) has the smallest volume, and it is also closer to the first motor (10). The temperature monitoring mechanism (20) is installed on the outer wall of the innermost ring-shaped frame (18), which can make the temperature monitoring accuracy higher and the temperature monitoring range more comprehensive. Turning the temperature monitoring net rack (16) again can make the temperature monitoring mechanism (20) face outward, achieving the effect of monitoring the temperature of the discharged gas.

2. A temperature monitoring device for a fan of a thermoelectric generator set according to claim 1, characterized in that: The outer wall of the both ends of the fan frame (7) is fixedly provided with a plurality of fan supporting rods (8), and the fan supporting rods (8) are fixedly provided with a motor seat (9) therebetween.

3. A temperature monitoring device for a fan of a thermoelectric generator set as claimed in claim 1, wherein: A plurality of supporting frames (17) are fixedly installed below the ring-shaped frame (18), a displacement sensor (19) is fixedly installed at the end position of the supporting frame (17), and the output end of the displacement sensor (19) is connected with the input end of the control mechanism (28) through Bluetooth.

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