Tail gas waste heat recovery device of gas generator set

Abstract

The invention belongs to the technical field of waste heat recovery, and particularly relates to a gas generator set tail gas waste heat recovery device which recovers waste heat in gas generator set tail gas through a water heating mechanism and a warm air mechanism and is used for heating domestic water or supplying heat, waste of waste heat is avoided, reduction of energy consumption and saving of electric charge are facilitated, and the device is suitable for popularization and application. The device brings remarkable economic benefits to enterprises, meanwhile, by recycling waste heat, carbon emission and emission of other pollutants generated by additional heating are reduced, and improvement of the environment quality is facilitated. Through cooperation of a coiled pipe, a transverse groove, an air inlet pipe and a U-shaped pipe, the air circulation path can be flexibly changed by controlling a sliding plate to slide left and right through a control assembly, so that the output temperature of warm air can be changed by changing the time of air participating in heat exchange on the inner side of the warm air mechanism, and the warm air mechanism can meet the heating requirements of different occasions; and meanwhile, the warm air mechanism is simple and ingenious in overall structure, and the maintenance difficulty and cost of the device can be better reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste heat recovery, and particularly relates to a waste heat recovery device for the exhaust gas of a gas generator set. Background Art

[0002] Under the dual demands of energy utilization and environmental protection, gas generator sets, as efficient and clean distributed energy systems, are widely used in industrial production, commercial power supply, regional heating and other fields. Most exhaust gas treatment systems of gas generator sets are only equipped with basic filtration devices to remove particulate matter and harmful gases and directly discharge them to the outside. However, during the operation of gas generators, the high-temperature exhaust gas generated by fuel combustion contains a large amount of heat energy. If it is directly discharged into the atmosphere without effective utilization, it will lead to low energy utilization efficiency, not only causing energy waste, but also exacerbating the urban heat island effect and greenhouse gas emission problems. Therefore, a device can be designed to recover and utilize the waste heat in the high-temperature exhaust gas, save energy and improve the environmental protection effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a waste heat recovery device for the exhaust gas of a gas generator set to solve the problems mentioned in the background art.

[0004] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows: A waste heat recovery device for the exhaust gas of a gas generator set includes a generator set body, an exhaust pipe and a waste heat recovery device. The generator set body is connected to the exhaust pipe through a pipeline. A top plate is installed on the upper side of the generator set body. The waste heat recovery device includes a warm water mechanism and a warm air mechanism. The warm water mechanism is installed on the upper side of the top plate and is connected to the exhaust pipe through a pipeline. The warm air mechanism is installed on the right side of the warm water mechanism; The warm air mechanism includes a cavity communicated with the warm water mechanism. A plurality of serpentine pipes are installed inside the cavity. The plurality of serpentine pipes are evenly spaced left and right. A horizontal groove is installed on the front side of the outside of the cavity. A plurality of connection holes are opened in the middle of the horizontal groove, which are respectively communicated with the upper sides of the front parts of the plurality of serpentine pipes one by one. The rear side of the leftmost serpentine pipe extends out of the outside of the cavity. Starting from the second serpentine pipe from left to right, every two adjacent serpentine pipes are communicated with each other at the lower side in sequence. A sliding plate is installed on the front side of the horizontal groove and is slidably connected to the horizontal groove left and right. An air inlet pipe is connected to the front side of the sliding plate. A plurality of U-shaped pipes are evenly spaced and installed on the left side of the air inlet pipe. A plurality of docking holes are opened in the middle of the sliding plate, which are respectively communicated with the left and right ends of the air inlet pipe and the U-shaped pipes and are matched with the connection holes. A control component is installed on the lower side of the horizontal groove to control the left and right movement of the sliding plate.

[0005] The control component includes a guiding cam rotatably connected to the top plate. A stepping motor fixed to the top plate is mounted on the side of the guiding cam. The output end of the stepping motor is in transmission connection with the guiding cam. A spiral groove is formed on the upper side of the guiding cam, and vertical grooves are evenly spaced on the left and right in the middle of the spiral groove. A control rod is fixed to the lower side of the front part of the sliding plate, and a control wheel matching the spiral groove and the vertical groove is rotatably mounted on the lower side of the control rod.

[0006] Two groups of pressing components are symmetrically mounted on the upper and lower sides of the transverse groove. The pressing component includes a pressing strip in contact with the sliding plate. A plurality of sliding rods are evenly fixed to the front side of the pressing strip. The sliding rods are slidably connected to the transverse groove in the front and back directions. A tension spring is sleeved on the outer side of the sliding rod, and the front and rear ends of the tension spring are respectively fixed to the rear side of the transverse groove and the front side of the pressing strip.

[0007] The warm water mechanism includes a housing connected to the tail gas pipe through a pipeline. The inside of the housing is vertically penetrated. A plurality of vertical pipes are spaced and installed inside the housing. The upper and lower ends of the vertical pipes extend out of the housing. The plurality of vertical pipes are staggered. A plurality of fins are evenly spaced on the upper and lower sides of the outer side of the vertical pipes. A water storage tank is mounted on the upper side of the left part of the generator set body. A connecting pipe is connected to the lower right part of the water storage tank, and the right end of the connecting pipe is connected to the lower end of the vertical pipe through a pipeline. A return pipe is connected to the right side of the middle of the water storage tank, and the right end of the return pipe is connected to the upper side of the vertical pipe through a pipeline. A pressure relief valve is mounted on the top of the water storage tank. A water inlet pipe and a water outlet pipe are connected to the left side of the water storage tank.

[0008] A ventilation pipe is connected between the warm air mechanism and the warm water mechanism. A generator assembly is provided in the middle of the ventilation pipe. The generator assembly includes a bracket. A small generator and a rotating small fan blade are fixed in the middle of the bracket. The small fan blade is in transmission connection with the input shaft of the small generator. A small water pump connected to the connecting pipe through a pipeline is mounted inside the water storage tank. The small water pump is electrically connected to the small generator.

[0009] A drain pipe respectively connected to the housing and the lower side of the inner part of the cavity is mounted on the lower side of the ventilation pipe. A water diversion pipe is connected to the rear side of the drain pipe, and a water trap is connected to the middle of the water diversion pipe.

[0010] A plurality of support springs are evenly installed between the top plate and the generator set body, and a vibration motor is fixed to the upper side of the top plate.

[0011] The fin as a whole is a cone with an inclined surface on the upper side.

[0012] The device recovers the waste heat in the exhaust gas of the gas generator set through the warm water mechanism and the warm air mechanism, which is used to heat domestic water or for heating, avoiding the waste of waste heat, helping to reduce energy consumption and save electricity costs. The device brings significant economic benefits to the enterprise. At the same time, by recovering waste heat, it also reduces carbon emissions and other pollutant emissions generated by additional heating, contributing to the improvement of environmental quality.The cooperation of the serpentine tube, the transverse groove, the air inlet pipe and the U-shaped tube can flexibly change the air flow path by controlling the left and right sliding of the sliding plate through the control component. Thus, by changing the time of the air participating in heat exchange inside the warm air mechanism, the output temperature of the warm air can be changed, enabling the warm air mechanism to meet the heating requirements in different scenarios, with wide applicability. At the same time, the overall structure of the warm air mechanism is simple and ingenious, which is more conducive to reducing the maintenance difficulty and cost of the device; through the precise rotation of the stepping motor, the spiral groove enables the control wheel to drive the control rod to move left and right. When the control wheel is inside the vertical groove, the control rod cannot move left and right. Through this design, the control component can quickly and accurately adjust the left and right positions of the sliding plate, realizing the adjustment function of the warm air temperature of the warm air mechanism. At the same time, it also makes the structure of the control component simple and reliable, further reducing the maintenance cost of the device; the tension spring and the pressing strip can improve the sealing performance of the warm air mechanism, thus preventing external impurities from entering the inside of the serpentine tube and improving the cleanliness inside the pipeline. At the same time, it can also prevent the air pressure inside the serpentine tube from being too high when the warm air mechanism is in the closed state, and can release the sliding plate by moving it forward through the tension spring, thereby further improving the reliability of the warm air mechanism; multiple vertical pipes are staggered and multiple fins are installed on the outside of the vertical pipes, increasing the heat exchange area. The connecting pipe is located on the lower side and the return water pipe is located on the upper side, which helps to form a water circulation, making the heating effect on the inside of the water storage tank more uniform, avoiding local overheating or overcooling. At the same time, the flowing water source helps to reduce the accumulation of scale on the inner wall of the water tank and extend the service life of the device; the cooperation of the small fan blade and the small generator enables the power generation component to not affect the exhaust gas emission of the generator set, and at the same time enables the small water pump to not require additional power and can continuously transport water to the right side of the connecting pipe, thereby accelerating the circulation speed inside the warm water mechanism, making the hot water inside the further water storage tank receive heat more evenly and helping to improve the user's water use experience; the cooperation of the drain pipe and the water diversion pipe can recycle water source resources such as condensate inside the device. The ingenious setting of the water seal bend enables the drain pipe and the water diversion pipe to discharge and collect the condensate formed inside the device, while preventing the internal gas from escaping from the drain pipe and the water diversion pipe, further improving the reliability of the device; all the pipelines in the device have a certain flexibility. By periodically controlling the vibration motor to vibrate and cooperating with the support spring, the overall warm air mechanism and warm water mechanism can be vibrated, which can reduce the formation of an insulating layer by the condensate adhering to the outside of the vertical pipes, fins and serpentine tubes, thereby improving the heat transfer efficiency and further improving the recovery efficiency of the waste heat of the generator set's exhaust gas by the device; the fins are overall conical with an inclined surface on the upper side, which can further facilitate the flow and discharge of the condensate on its surface and further improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further illustrated by the non-limiting embodiments given in the drawings.

[0014] Figure 1It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the rear side of the present invention.

[0016] Figure 3 It is Figure 2 an enlarged structural schematic diagram of part A in

[0017] Figure 4 It is a structural schematic diagram of the warm air mechanism in the present invention.

[0018] Figure 5 It is Figure 4 an enlarged structural schematic diagram of part B in

[0019] Figure 6 It is an internal structural schematic diagram of the warm air mechanism in the present invention.

[0020] Figure 7 It is a schematic cross-sectional structure diagram of the top of the warm air mechanism in the present invention.

[0021] Figure 8 It is Figure 7 an enlarged structural schematic diagram of part C in

[0022] Figure 9 It is a structural schematic diagram of the control component and the sliding plate in the present invention.

[0023] Generator set body 1, tail gas pipe 2, top plate 3, cavity 4, serpentine pipe 5, transverse groove 6, connection hole 7, sliding plate 8, air inlet pipe 9, U-shaped pipe 10, docking hole 11, guide cam 12, stepping motor 13, spiral groove 14, vertical groove 15, control rod 16, control wheel 17, pressing strip 18, sliding rod 19, tension spring 20, housing 21, vertical pipe 22, fin 23, water storage tank 24, connecting pipe 25, return water pipe 26, pressure relief valve 27, water inlet pipe 28, water outlet pipe 29, ventilation pipe 30, bracket 31, small generator 32, small fan blade 33, small water pump 34, drain pipe 35, water diversion pipe 36, water seal bend 37, support spring 38, vibration motor 39. Detailed implementation manners

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] As Figures 1-9As shown in the figure, a waste heat recovery device for the exhaust gas of a gas generator set includes a generator set body 1, an exhaust pipe 2, and a waste heat recovery device. The generator set body 1 is connected to the exhaust pipe 2 through a pipeline. A top plate 3 is installed on the upper side of the generator set body 1. The waste heat recovery device includes a warm water mechanism and a warm air mechanism. The warm water mechanism is installed on the upper side of the top plate 3 and is connected to the exhaust pipe 2 through a pipeline. The warm air mechanism is installed on the right side of the warm water mechanism. The warm air mechanism includes a cavity 4 communicated with the warm water mechanism. A plurality of serpentine tubes 5 are installed inside the cavity 4. The plurality of serpentine tubes 5 are evenly spaced left and right. A transverse groove 6 is installed on the front side of the outside of the cavity 4. A plurality of connection holes 7 are opened in the middle of the transverse groove 6, which are respectively communicated with the upper sides of the front parts of the plurality of serpentine tubes 5 one by one. The rear side of the leftmost serpentine tube 5 extends out of the outside of the cavity 4. Starting from the second serpentine tube 5 from left to right, the lower sides of every two adjacent serpentine tubes 5 are communicated in sequence. A sliding plate 8 is installed on the front side of the transverse groove 6 and is slidably connected to the transverse groove 6 left and right. An air inlet pipe 9 is connected to the front side of the sliding plate 8. A plurality of U-shaped tubes 10 are evenly spaced and installed on the left side of the air inlet pipe 9. A plurality of docking holes 11 are opened in the middle of the sliding plate 8, which are respectively communicated with the left and right ends of the air inlet pipe 9 and the U-shaped tubes 10 and are matched with the connection holes 7. A control component is installed on the lower side of the transverse groove 6 for controlling the left and right movement of the sliding plate 8.

[0026] In the present invention, the air inlet pipe 9 is connected to an external air supply device, and the rear side of the leftmost serpentine tube 5 extending out of the cavity 4 is connected to a wind-using device. When the generator set works, the warm water mechanism can recover the waste heat in the exhaust gas of the gas generator set for heating domestic water. After passing through the warm water mechanism, the temperature of the exhaust gas decreases and enters the inside of the right cavity 4. When the warm air mechanism does not need to work, the sliding plate 8 moves to the leftmost stroke. At this time, the serpentine tube 5 and the air inlet pipe 9 are in a blocked state. When low-temperature warm air is needed, the air inlet pipe 9 slides to the right and aligns with the leftmost first connection hole 7. At this time, the first serpentine tube 5 heats the incoming air to realize the output of warm air. When the user's temperature requirement for warm air increases, the sliding plate 8 continues to move to the right. At this time, the air enters from the third serpentine tube 5, passes through the second serpentine tube 5, flows out to the U-shaped tube 10, and is discharged from the rear side of the first serpentine tube 5. Thus, the first three serpentine tubes 5 can heat the incoming air, and so on.

[0027] The device recovers the waste heat in the exhaust gas of the gas generator set through the warm water mechanism and the warm air mechanism, which is used to heat domestic water or for heating, avoiding the waste of waste heat, helping to reduce energy consumption and save electricity bills. At the same time, the device brings significant economic benefits to the enterprise. Also, by recovering waste heat, it reduces carbon emissions and other pollutant emissions generated by additional heating, contributing to improving environmental quality. The cooperation of the serpentine tube 5, the transverse groove 6, the air inlet pipe 9 and the U-shaped tube 10 can flexibly change the air flow path by controlling the left and right sliding of the sliding plate 8 through the control component. Thus, by changing the time of the air participating in heat exchange inside the warm air mechanism, the output temperature of the warm air can be changed, enabling the warm air mechanism to meet the heating requirements of different occasions, having wide applicability. At the same time, the overall structure of the warm air mechanism is simple and ingenious, which is more conducive to reducing the maintenance difficulty and cost of the device.

[0028] The control component includes a guiding cam 12 rotatably connected to the top plate 3. A stepping motor 13 fixed to the top plate 3 is installed on the side of the guiding cam 12. The output end of the stepping motor 13 is drivingly connected to the guiding cam 12. A spiral groove 14 is formed on the upper side of the guiding cam 12, and vertical grooves 15 are evenly spaced left and right in the middle of the spiral groove 14. A control rod 16 is fixed to the lower side of the front part of the sliding plate 8, and a control wheel 17 matching the spiral groove 14 and the vertical grooves 15 is rotatably installed on the lower side of the control rod 16.

[0029] Through the precise rotation of the stepping motor 13, the spiral groove 14 enables the control wheel 17 to drive the control rod 16 to move left and right. When the control wheel 17 is inside the vertical groove 15, the control rod 16 cannot move left and right. Through this design, the control component can quickly and accurately adjust the left and right positions of the sliding plate 8, realizing the function of adjusting the warm air temperature of the warm air mechanism. At the same time, it also makes the structure of the control component simple and reliable, contributing to reducing the maintenance cost of the device.

[0030] Two groups of pressing components are symmetrically installed on the upper and lower sides of the transverse groove 6. The pressing component includes a pressing strip 18 in contact with the sliding plate 8. A plurality of sliding rods 19 are evenly fixed to the front side of the pressing strip 18. The sliding rods 19 are slidably connected to the transverse groove 6 in the front and rear directions. A tension spring 20 is sleeved on the outer side of the sliding rod 19, and the front and rear ends of the tension spring 20 are respectively fixed to the rear side of the transverse groove 6 and the front side of the pressing strip 18.

[0031] The pressing strip 18 that can move back and forth and is drivingly connected to the tension spring 20 can provide continuous and stable pressure for the sliding plate 8, making the sliding plate 8 closely adhere to the transverse groove 6, improving the sealing performance of the warm air mechanism, thereby preventing external impurities from entering the inside of the serpentine tube 5 and improving the cleanliness inside the pipeline. At the same time, it can also prevent the air pressure inside the serpentine tube 5 from being too high when the warm air mechanism is in the closed state, and can release the sliding plate 8 to move forward through the tension spring 20, further improving the reliability of the warm air mechanism.

[0032] The warm water mechanism includes a shell 21 connected to the exhaust pipe 2. The inner side of the shell 21 is connected from left to right. A plurality of vertical pipes 22 are installed at intervals on the inner side of the shell 21. The upper and lower ends of the vertical pipes 22 extend out of the outer side of the shell 21. The plurality of vertical pipes 22 are staggered. A plurality of fins 23 are evenly installed at upper and lower intervals on the outer side of the vertical pipes 22. A water storage tank 24 is installed on the upper left side of the generator set body 1. A connecting pipe 25 is connected to the lower right side of the water storage tank 24. The right end of the connecting pipe 25 is connected to the lower end of the vertical pipe 22. A return pipe 26 is connected to the upper side of the vertical pipe 22. A pressure relief valve 27 is installed on the top of the water storage tank 24. An inlet pipe 28 and an outlet pipe 29 are connected to the left side of the water storage tank 24.

[0033] The water inlet pipe 28 and the water outlet pipe 29 are respectively connected to the external water source and the external water use facilities. The upper and lower ends of the vertical pipe 22 extend out of the shell 21. Through the principles of natural circulation and thermal convection, the water source inside the water tank 24 enters from the lower side of the vertical pipe 22 through the connecting pipe 25, and flows back to the water tank 24 from the return pipe 26 on the upper side, forming a water circuit circulation. The pressure relief valve 27 can relieve the pressure of the water tank 24 when necessary, thereby improving the reliability of the heating mechanism.

[0034] Multiple vertical pipes 22 are staggered and multiple fins 23 are installed on the outside of the vertical pipes 22, which increases the heat exchange area. The connecting pipe 25 is located on the lower side, and the return pipe 26 is located on the upper side, which helps to form a water circulation, so that the heating effect on the inside of the water storage tank 24 is more uniform, avoiding local overheating or overcooling. At the same time, the flowing water source also helps to reduce the accumulation of scale on the inner wall of the water tank and extend the service life of the device.

[0035] A ventilation pipe 30 is connected between the warm air mechanism and the warm water mechanism. A generator assembly is provided in the middle of the ventilation pipe 30. The generator assembly includes a bracket 31. A small generator 32 and a rotating small fan blade 33 are fixed in the middle of the bracket 31. The small fan blade 33 is drivingly connected to the input shaft of the small generator 32. A small water pump 34 connected to the connecting pipe 25 is installed on the inner side of the water storage tank 24. The small water pump 34 is electrically connected to the small generator 32.

[0036] The cooperation between the small fan blades 33 and the small generator 32 enables the power generation component to not affect the exhaust gas emissions of the generator set, while also allowing the small water pump 34 to not require additional electricity and continuously deliver water to the right side of the connecting pipe 25, thereby accelerating the circulation speed inside the warm water mechanism, so that the hot water inside the water storage tank 24 is further heated more evenly, which helps to improve the user's water use experience.

[0037] A drainage pipe 35 connected to the shell 21 and the lower pipeline inside the cavity 4 is installed at the lower side of the ventilation pipe 30. The rear side of the drainage pipe 35 is connected to a water diversion pipe 36, and a water trap 37 is connected to the middle of the water diversion pipe 36.

[0038] During the waste heat recovery process of the generator set, the surface temperature inside the warm water mechanism and the warm air mechanism is lower than the dew point temperature of the surrounding air, resulting in the condensation of water vapor in the exhaust gas into water droplets on the surfaces of various internal components. The cooperation of the drain pipe 35 and the water inlet pipe 36 can recover water source resources such as condensed water inside the device. The ingenious setting of the trap 37 enables the drain pipe 35 and the water inlet pipe 36 to discharge and collect the condensed water formed inside the device, while also preventing the internal gas from escaping from the drain pipe 35 and the water inlet pipe 36, further improving the reliability of the device.

[0039] A plurality of support springs 38 are evenly installed between the top plate 3 and the generator set body 1, and a vibration motor 39 is fixed on the upper side of the top plate 3; the fin 23 is generally conical with an inclined surface on the upper side.

[0040] All pipelines in the device have a certain flexibility. By periodically controlling the vibration of the vibration motor 39 and cooperating with the support springs 38, the overall vibration of the warm air mechanism and the warm water mechanism can be realized, which can reduce the formation of an insulating layer due to the adhesion of condensed water on the outer sides of the vertical pipe 22, the fin 23, and the serpentine pipe 5, thereby improving the heat transfer efficiency and further enhancing the waste heat recovery efficiency of the device for the exhaust gas of the generator set; the fin 23 is generally conical with an inclined surface on the upper side, which can further facilitate the flow and discharge of the condensed water on its surface, further improving the heat exchange efficiency.

[0041] The above embodiments merely exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A waste heat recovery device for tail gas of a gas generator set, comprising a generator set body, a tail gas pipe and a waste heat recovery device, wherein the generator set body is connected to the tail gas pipe, and is characterized in that: A top plate is installed on the upper side of the generator set body, and the waste heat recovery device includes a water heater and an air heater. The water heater is installed on the upper side of the top plate and connected to the tail gas pipe, and the air heater is installed on the right side of the water heater; The warm air mechanism includes a cavity connected to the warm water mechanism, a plurality of serpentine tubes are installed on the inner side of the cavity, and the plurality of serpentine tubes are evenly spaced apart on the left and right sides, a transverse groove is installed on the front side of the outside of the cavity, a plurality of connecting holes connected one by one with the upper sides of the front parts of the plurality of serpentine tubes are opened in the middle of the transverse groove, the rear side of the leftmost serpentine tube extends out of the outside of the cavity, and from left to right starting from the second serpentine tube, the lower sides of every two adjacent serpentine tubes are connected in sequence, a sliding plate connected to the left and right sliding connection is installed on the front side of the transverse groove, an air inlet pipe is connected to the front side of the sliding plate, a plurality of U-shaped tubes are evenly spaced apart on the left side of the air inlet pipe, a plurality of docking holes connected to the air inlet pipe and the left and right ends of the U-shaped tube and matched with the connecting holes are opened in the middle of the sliding plate, and a control component for controlling the left and right movement of the sliding plate is installed on the lower side of the transverse groove.

2. A gas generator set tail gas waste heat recovery device according to claim 1, characterized in that: The control component includes a guide cam rotatably connected to the top plate, a stepper motor fixed to the top plate is installed on the side of the guide cam, the output end of the stepper motor is transmission-connected to the guide cam, a spiral groove is opened on the upper side of the guide cam, and vertical grooves are evenly spaced on the left and right sides of the middle of the spiral groove, a control rod is fixed on the lower side of the front part of the sliding plate, and a control wheel matching the spiral groove and the vertical groove is rotatably installed on the lower side of the control rod.

3. A gas generator set tail gas waste heat recovery device according to claim 2, characterized in that: Two groups of pressing components are symmetrically installed on the upper and lower sides of the transverse groove, and the pressing components include a pressing strip abutting against the sliding plate, and a plurality of sliding rods are evenly fixed on the front side of the pressing strip. The sliding rods are connected to the transverse groove for front and rear sliding. A tensioning spring is sleeved on the outer side of the sliding rod, and the front and rear ends of the tensioning spring are respectively fixedly connected to the rear side of the transverse groove and the front side of the pressing strip.

4. The exhaust waste heat recovery device for a gas-fired generator set according to claim 3 is characterized in that: The warm water mechanism includes a shell connected to the exhaust pipe pipeline, the inner side of the shell is connected from left to right, and a plurality of vertical pipes are installed at intervals on the inner side of the shell, the upper and lower ends of the vertical pipes extend out of the shell, and the plurality of vertical pipes are staggered, and a plurality of fins are evenly installed on the upper and lower outer sides of the vertical pipes, a water storage tank is installed on the upper left side of the generator set body, a connecting pipe is connected to the lower right side of the water storage tank, the right end of the connecting pipe is connected to the lower end pipeline of the vertical pipe, a return pipe is connected to the right side of the middle part of the water storage tank, and the right end of the return pipe is connected to the upper side pipeline of the vertical pipe, a pressure relief valve is installed on the top of the water storage tank, and an inlet pipe and an outlet pipe are connected to the left side of the water storage tank.

5. The exhaust waste heat recovery device for a gas-fired generator set according to claim 4 is characterized in that: A ventilation pipe is connected between the warm air mechanism and the warm water mechanism, a generator assembly is provided in the middle of the ventilation pipe, the power generation assembly includes a bracket, a small generator and a small rotating fan blade are fixed in the middle of the bracket, the small fan blade is drivingly connected to the input shaft of the small generator, a small water pump connected to the connecting pipe is installed on the inside of the water storage tank, and the small water pump is electrically connected to the small generator.

6. A gas generator set tail gas waste heat recovery device according to claim 5, characterized in that: A drainage pipe connected to the shell and the lower pipeline inside the cavity is installed at the lower side of the ventilation pipe, the rear side of the drainage pipe is connected to a water diversion pipe, and a water trap is connected to the middle of the water diversion pipe.

7. The exhaust waste heat recovery device for a gas-fired generator set according to claim 6, characterized in that: A plurality of support springs are evenly installed between the top plate and the generator set body, and a vibration motor is fixed on the upper side of the top plate.

8. The exhaust waste heat recovery device for a gas-fired generator set according to claim 7, characterized in that: The fin is generally in a cone shape with an inclined surface on the upper side.

Images