A pipeline type surplus energy generator set

Abstract

The application discloses a pipeline type residual energy generator set and relates to the technical field of residual energy generator sets.The pipeline type residual energy generator set comprises a pipeline section, an energy conversion module, a generator and a control module, the control module is electrically connected with the generator and an adjustable guide vane, fluid flows into the left end of the pipeline section and firstly passes through the adjustable guide vane.The guide vane forms a converging flow channel, rotates and accelerates the fluid, and impacts the blades of a turbine rotor at an optimal angle to push the turbine to rotate.The mechanical energy of the turbine is directly transmitted to a generator rotor through a main shaft, the rotor rotates in a stator filled with permanent magnets, cuts magnetic induction lines to generate three-phase alternating current, and the fluid after work flows out from the right end of the pipeline.The whole process has a short energy conversion path and high efficiency, the turbine rotor and the generator rotor share a main shaft which is supported by composite ceramic bearings at both ends, the whole rotating part serves as a rigid unit, has good dynamic balance and small vibration.

Description

Technical Field

[0001] This invention relates to the field of waste heat generator technology, specifically to a pipeline-type waste heat generator. Background Technology

[0002] Industrial processes generate large quantities of fluids carrying residual pressure and heat, such as high-temperature flue gas, compressed air, and cooling wastewater. During pipeline transport, the energy contained within these fluids is often wasted through pressure-reducing valves. Pipeline-type waste heat recovery generators are crucial for recovering this energy. Existing solutions typically involve connecting a generator branch in parallel or series with the main pipeline. This branch includes a turbine expander (or water turbine) and a generator connected to it via a mechanical transmission mechanism. The fluid drives the turbine to rotate, converting residual energy into mechanical energy, which is then converted into electrical energy by the generator. Mechanical seals or packing seals are commonly used to seal the area where the high-speed rotating turbine shaft passes through the pipeline wall. These systems have inherent drawbacks: long mechanical transmission chains result in significant efficiency losses; and the entire unit is often a rigid design for specific operating conditions, lacking adaptability. When fluid parameters fluctuate, the operating efficiency drops sharply. Therefore, we propose a pipeline-type waste heat recovery generator. Summary of the Invention

[0003] The purpose of this invention is to address the common practice of using mechanical seals or packing seals to seal the portion of a high-speed rotating turbine shaft that passes through a pipe wall. These systems have inherent drawbacks: long mechanical transmission chains leading to significant efficiency losses; and the entire unit is often a rigid design for specific operating conditions, lacking adaptability, resulting in a sharp drop in operating efficiency when fluid parameters fluctuate. This invention provides a pipeline-type waste heat recovery generator set.

[0004] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0005] A pipeline-type waste heat generator set, comprising:

[0006] The pipeline section forms a fluid passage and has flanges at both ends for connecting to external pipelines;

[0007] An energy conversion module, coaxially housed inside the pipe section, includes a turbine rotor and a set of adjustable guide vanes. The adjustable guide vanes are arranged around the upstream of the turbine rotor inlet to guide and adjust the angle and flow rate of the fluid impacting the turbine rotor.

[0008] The generator is a permanent magnet synchronous generator, whose motor rotor and turbine rotor are fixed on the same main shaft, forming a direct-drive structure without intermediate transmission mechanism;

[0009] The control module is electrically connected to the generator and the adjustable guide vane, and is used to control the guide vane angle and the power output of the generator according to the real-time parameters of the fluid in the pipeline.

[0010] Furthermore, the adjustable guide vane includes a guide vane mounting cover, guide vanes, a drive ring, and a guide vane adjustment power mechanism. The guide vane mounting cover is concentrically fixed to the inner cavity of the pipe section, and multiple guide vanes are evenly distributed between the guide vane mounting cover and the pipe section. The central rotating shafts at both ends of each guide vane are rotatably mounted through the guide vane mounting cover and the pipe section via sealed bearings. A drive ring is rotatably mounted on the outer wall of the pipe section corresponding to the position of the guide vane. The outer rotating shaft of each guide vane is driven by a helical gear meshing with the side teeth of the drive ring. The guide vane adjustment power mechanism includes a servo motor, and the output shaft of the servo motor meshes with the teeth on the outer edge of the drive ring via a worm gear. The control module drives the guide vane adjustment power mechanism to rotate the drive ring, thereby synchronously driving all guide vanes to rotate around their own rotating shafts via the helical gears, changing the opening and intake angle of the guide vanes.

[0011] Furthermore, the turbine rotor includes a worm gear center seat, and multiple rotor blades are rotatably mounted on the side wall of the worm gear center seat at equal intervals via sealed bearings. A motor cover is fixedly connected to the front side of the worm gear center seat, and a worm gear adjusting motor is fixedly connected to the center of the inner cavity of the motor cover via a bracket. The output shaft of the worm gear adjusting motor meshes with the inner end of the rotating shaft of the multiple rotor blades through a bevel gear transmission mechanism.

[0012] Furthermore, the control module includes: a data acquisition unit for acquiring fluid pressure, temperature, flow rate signals, spindle speed, vibration signals, and generator output electrical parameters within the pipeline; a processing unit with a built-in adaptive PID control algorithm for calculating the optimal guide vane opening command and generator load command based on the acquired signals; and an execution unit including a guide vane adjustment power mechanism, a drive circuit for the worm gear adjustment motor, and an excitation control circuit for the generator.

[0013] Furthermore, the spindle is supported by two radial-thrust composite ceramic bearings. The bearings use zirconia ceramic balls and self-lubricating polymer cages, and are housed in independent bearing housings. Vibration and temperature sensors are installed on the bearing housings to monitor the spindle's operating status in real time.

[0014] Furthermore, a flow guide is provided at the internal inlet of the pipe section. This flow guide is a Venturi tube structure with the smallest throat section, which is directly opposite the blades of the turbine rotor. When the fluid flows through the Venturi tube, it obtains the maximum flow velocity at the throat, thereby efficiently impacting the turbine rotor.

[0015] Furthermore, it also includes a thermal management module, which includes a cooling coil wound around the outer wall of the generator sealing housing and heat dissipation fins integrally formed with the outer wall of the pipe section; the cooling coil circulates a cooling medium driven by a small electric pump.

[0016] Furthermore, the power output terminal of the generator is connected to a power conversion unit, which includes an AC-DC rectifier, a DC-DC voltage regulator circuit, and a DC-AC inverter. A supercapacitor module is connected in parallel on the intermediate DC bus of the DC-DC voltage regulator circuit as an energy storage buffer unit.

[0017] Furthermore, the flange of the pipe section is provided with a set of replaceable adapter pipes. The adapter pipes are made of elastic metal, with an inner diameter that matches the inner diameter of the pipe section and an outer diameter of different specifications, for matching external pipe flanges of different outer diameter sizes.

[0018] Furthermore, the blades of the turbine rotor and the blades of the adjustable guide vanes are coated with a tungsten carbide wear-resistant and corrosion-resistant coating.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. In this invention, fluid flows in from the left end of the pipe section and first passes through adjustable guide vanes. The guide vanes form a converging flow channel, initiating swirl and acceleration of the fluid, and impacting the turbine rotor blades at an optimal angle, driving the turbine to rotate. The mechanical energy of the turbine is directly transferred to the generator rotor through the main shaft. The rotor rotates inside a stator filled with permanent magnets, cutting magnetic field lines to generate three-phase alternating current. The fluid, after performing work, flows out from the right end of the pipe. The entire process features a short energy conversion path and high efficiency. The turbine rotor and generator rotor share a main shaft, which is supported by composite ceramic bearings at both ends. The entire rotating component functions as a rigid unit, exhibiting good dynamic balance and low vibration.

[0021] 2. In this invention, when the pipeline flow rate decreases, the control module sends a command to the servo motor, causing the motor to rotate and drive the drive ring to rotate at an angle. The rotation of the drive ring is converted into torque on each guide vane through all helical gears, causing all guide vanes to rotate synchronously in the direction of reducing the airflow channel area. This maintains the impact velocity of the fluid on the turbine blades at low flow rates, preventing stall and widening the high-efficiency operating range. Conversely, when the flow rate is too high, the flow rate is adjusted in the opposite direction to prevent overspeed. This synchronous linkage mechanism ensures consistent action, precise control, and a smooth, shock-free adjustment process, effectively improving the unit's adaptability to different operating conditions.

[0022] 3. The Venturi tube structure of the flow guide of the present invention accelerates the fluid through throat contraction, so that the fluid reaches the optimal flow rate before impacting the turbine rotor, thereby improving the energy conversion efficiency. Attached Figure Description

[0023] Figure 1This is one of the structural schematic diagrams of the present invention;

[0024] Figure 2 This is the second structural schematic diagram of the present invention;

[0025] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is the present invention. Figure 2 Enlarged view of point B in the middle.

[0027] In the diagram: 1. Pipe section; 11. Flange; 12. Draft shield; 13. Heat dissipation fins; 14. Adaptor pipe; 2. Energy conversion module; 21. Turbine rotor; 211. Worm gear center seat; 212. Rotor blades; 213. Motor cover; 214. Worm gear adjustment motor; 22. Adjustable guide vane; 221. Guide vane; 222. Drive ring; 223. Servo motor; 224. Helical gear; 225. Energy conversion module; 3. Generator; 31. Motor rotor; 32. Cooling coil; 33. Sealed housing; 4. Main shaft; 5. Composite ceramic bearing; 51. Bearing housing; 52. Vibration and temperature sensor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] Please see Figures 1-4 The present invention provides a pipeline-type waste heat generator set, comprising:

[0030] Pipe section 1 forms a fluid channel, and flanges 11 are provided at both ends for connecting external pipes;

[0031] Energy conversion module 2 is coaxially housed inside pipe section 1 and includes a turbine rotor 21 and a set of adjustable guide vanes 22. The adjustable guide vanes 22 are arranged around the upstream of the inlet of the turbine rotor 21 to guide and adjust the angle and flow rate of the fluid impacting the turbine rotor 21.

[0032] Generator 3 is a permanent magnet synchronous generator. Its motor rotor 31 and turbine rotor 21 are fixed on the same main shaft 4, forming a direct drive structure without intermediate transmission mechanism.

[0033] The control module is electrically connected to the generator 3 and the adjustable guide vane 22, and is used to control the guide vane angle and the power output of the generator according to the real-time parameters of the fluid in the pipeline.

[0034] The working principle and usage process of this invention: Fluid flows in from the left end of pipe section 1, first passing through adjustable guide vanes 22. The guide vanes form a converging flow channel, initiating swirl and acceleration of the fluid, and impacting the blades of turbine rotor 21 at the optimal angle, driving the turbine to rotate. The mechanical energy of the turbine is directly transferred to the generator rotor 31 through the main shaft 4. The rotor rotates inside the stator 32 filled with permanent magnets, cutting magnetic field lines to generate three-phase alternating current. The fluid, after performing work, flows out from the right end of the pipe. The entire process has a short energy conversion path and high efficiency. Turbine rotor 21 and generator rotor 31 share a main shaft 4, which is supported by composite ceramic bearings 5 ​​at both ends. The entire rotating component acts as a rigid unit, exhibiting good dynamic balance and low vibration.

[0035] The generator 3 incorporates rare-earth permanent magnet poles within the motor rotor 31, generating an excitation magnetic field. This eliminates the need for excitation windings and an excitation control panel, simplifying the system structure and improving performance. Permanent magnet generators boast high energy density; at the same power and speed, they are smaller and lighter, eliminating concerns about carbon brush wear, making them ideal for integrated pipeline systems. The motor rotor 31, made of permanent magnets, does not generate heat and requires no internal ventilation cooling. Only external stator cooling is needed, which can be achieved using water cooling or forced air cooling of the outer casing to ensure effective cooling of the generator 3.

[0036] In this embodiment, preferably, the adjustable guide vane 22 includes a guide vane mounting cover 225, guide vanes 221, a drive ring 222, and a guide vane adjustment power mechanism. The guide vane mounting cover 225 is concentrically fixed to the inner cavity of the pipe section 1, and multiple guide vanes 221 are evenly distributed between the guide vane mounting cover 225 and the pipe section 1. The central rotating shafts at both ends of each guide vane 221 are respectively rotatably mounted to the pipe section 1 through the guide vane mounting cover 225 via sealed bearings. The drive ring 222 is rotatably mounted on the outer wall of the pipe section 1 corresponding to the position of the guide vane 221. Each guide vane 221... The outer rotating shaft is driven by the helical gear 224 meshing with the side teeth of the drive ring 222. The guide vane adjustment power mechanism includes a servo motor 223, whose output shaft meshes with the teeth on the outer edge of the drive ring 222 via a worm gear. The control module drives the guide vane adjustment power mechanism to rotate the drive ring 222, thereby synchronously driving all guide vanes 221 to rotate around their own shafts via the helical gear 224, changing the opening and intake angle of the guide vanes. When the pipeline flow rate decreases, the control module sends a command to the servo motor 223, causing the motor to rotate and drive the drive ring 222 to rotate by an angle. The rotation of the drive ring 222 is converted into torque on each guide vane 221 through all the helical gears 224, causing all guide vanes to rotate synchronously in the direction of reducing the airflow channel area. This can maintain the impact speed of the fluid on the turbine blades at low flow rates, prevent stalling, and widen the high-efficiency operating range. Conversely, when the flow rate is too high, the reverse adjustment is performed to prevent overspeed. This synchronous linkage mechanism ensures consistent action, precise control, and a smooth, shock-free adjustment process, effectively improving the unit's adaptability to different operating conditions.

[0037] In this embodiment, preferably, the turbine rotor 21 includes a worm gear center seat 211. Multiple rotor blades 212 are rotatably mounted on the side wall of the worm gear center seat 211 at equal intervals via sealed bearings. A motor cover 213 is fixedly connected to the front side of the worm gear center seat 211. A worm gear adjusting motor 214 is fixedly connected to the center of the inner cavity of the motor cover 213 via a bracket. The output shaft of the worm gear adjusting motor 214 meshes with the inner end of the rotating shaft of the multiple rotor blades 212 via a bevel gear transmission mechanism. The worm gear adjusting motor 214 mounted on the worm gear center seat 211 of the turbine rotor 21 can further fine-tune the angle of the rotor blades 212 according to the fluid characteristics, and work in conjunction with the adjustable guide vane 22 to achieve a more precise flow matching.

[0038] In this embodiment, preferably, the control module includes: a data acquisition unit for acquiring fluid pressure, temperature, flow rate signals, main shaft speed, vibration signals, and generator output electrical parameters within the pipeline; a processing unit with a built-in adaptive PID control algorithm for calculating the optimal guide vane opening command and generator load command based on the acquired signals; and an execution unit including the drive circuits for the guide vane adjustment power mechanism 223 and the worm gear adjustment motor 214, and the generator excitation control circuit. The control module is the core for achieving intelligent operation. Its workflow is as follows: various sensors in the data acquisition unit 61 send real-time data to the processing unit 62, which uses an industrial PLC or embedded microprocessor. The adaptive PID algorithm in the processing unit 62 is not a fixed parameter; it dynamically adjusts the P, I, and D parameters according to the current flow and pressure trends. For example, when a rapid decrease in flow is detected, the algorithm will more aggressively reduce the guide vane opening to maintain the speed, while simultaneously adjusting the load on the generator side, such as through a power electronic converter, to ensure the turbine always operates near its optimal efficiency point, achieving global optimization.

[0039] In this embodiment, preferably, the spindle 4 is supported by two radial-thrust composite ceramic bearings 5. The bearings 5 ​​use zirconia ceramic balls and self-lubricating polymer cages, and are housed in independent bearing housings 51. Vibration and temperature sensors 52 are installed on the bearing housings 51 to monitor the spindle's operating status in real time. The composite ceramic bearings 5 ​​at both ends of the spindle 4 use zirconia ceramic balls, which have high hardness, low coefficient of friction, and excellent corrosion resistance. Combined with self-lubricating polymer cages, they significantly reduce friction loss and temperature rise during bearing operation, thus extending bearing life.

[0040] In this embodiment, preferably, a flow guide shroud 12 is provided at the internal inlet of the pipe section 1. The flow guide shroud 12 is a Venturi tube structure with the smallest throat cross section, which is directly opposite the blades of the turbine rotor 21. When the fluid flows through the Venturi tube, it obtains the maximum flow velocity at the throat, thereby efficiently impacting the turbine rotor. The Venturi tube structure of the flow guide shroud 12 accelerates the fluid by contracting the throat, so that the fluid reaches the optimal flow velocity before impacting the turbine rotor 21, thereby improving the energy conversion efficiency.

[0041] In this embodiment, preferably, a thermal management module is also included. The thermal management module includes a cooling coil 32 coiled around the outer wall of the generator sealing housing 33 and heat dissipation fins 13 integrally formed with the outer wall of the pipe section 1. Cooling medium driven by a small electric pump circulates within the cooling coil 32. In the thermal management module, the cooling medium within the cooling coil 32 circulates under the drive of the small electric pump, absorbing heat from the generator sealing housing 33 and dissipating the heat to the environment through the heat dissipation fins 13 on the outer wall of the pipe section 1, ensuring that the generator operates at a suitable temperature.

[0042] The generator 3 and the main shaft 4 are enclosed in a sealed housing 33 connected to the flange of the pipeline section 1, which isolates them from the fluid. The housing is filled with transformer oil and led out through a sealed pipeline, which is also the outlet of the output cable. A level gauge is installed on the top to monitor the leakage of the internal oil and to replenish the internal oil after long-term operation. This sealing and cooling design effectively prevents the damage to the generator caused by fluid leakage. At the same time, the transformer oil not only plays a role in insulation and cooling, but also reduces the impact of mechanical vibration on the generator, thereby improving the reliability and service life of the entire generator set.

[0043] In this embodiment, preferably, the power output terminal of generator 3 is connected to a power conversion unit, which includes an AC-DC rectifier, a DC-DC voltage regulator circuit, and a DC-AC inverter. A supercapacitor module is connected in parallel on the intermediate DC bus of the DC-DC voltage regulator circuit as an energy storage buffer unit. The permanent magnet generator generates alternating current with frequency and voltage varying with rotational speed, which must first be converted to direct current by rectifier 91. The DC-DC voltage regulator circuit 92 stabilizes this direct current at the set voltage of the bus. The supercapacitor module 94 has rapid charging and discharging characteristics. When fluid fluctuations cause sudden changes in power generation, it can instantly absorb or release electrical energy, smoothing the fluctuations in the DC bus voltage and providing a stable input for the subsequent inverter 93. The inverter 93 ultimately converts the stable direct current into AC power that meets grid connection requirements. This power electronic system ensures stable power quality.

[0044] In this embodiment, preferably, a set of replaceable adapter pipes 14 are provided at the flange 11 of pipe section 1. The adapter pipes 14 are made of elastic metal, with an inner diameter matching the inner diameter of pipe section 1 and different outer diameter specifications, used to match external pipe flanges of different outer diameters. The adapter pipes 14 realize the modularity of the unit. This generator set has standard outer flange sizes. When it needs to be installed on pipes of different diameters, only one adapter pipe 14 with an outer diameter matching the target pipe flange and an inner diameter matching the inner diameter of the unit's pipe section 1 needs to be selected as a transition piece. During installation, the adapter pipe 14 is clamped between the unit flange and the pipe flange and tightened with long bolts. This greatly enhances the versatility of the unit and reduces customization costs.

[0045] In this embodiment, preferably, the blades of the turbine rotor 21 and the blades of the adjustable guide vane 22 are coated with a tungsten carbide wear-resistant and corrosion-resistant coating. For fluids containing dust or corrosive components, the tungsten carbide coating has extremely high hardness and chemical inertness, effectively resisting the erosion of solid particles and the corrosion of acidic gases, significantly extending the service life of the turbine and guide vanes, and reducing maintenance frequency and costs.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipeline-type waste heat generator set, characterized in that, include: Pipe section (1), which forms a fluid channel, has flanges (11) at both ends for connecting to external pipes. Energy conversion module (2), which is coaxially housed inside the pipe section (1), includes a turbine rotor (21) and a set of adjustable guide vanes (22). The adjustable guide vanes (22) are arranged around the upstream of the inlet of the turbine rotor (21) to guide and adjust the fluid angle and flow rate impacting the turbine rotor (21). The generator (3) is a permanent magnet synchronous generator. Its motor rotor (31) and the turbine rotor (21) are fixed on the same main shaft (4) to form a direct drive structure without intermediate transmission mechanism. The control module is electrically connected to the generator (3) and the adjustable guide vane (22) and is used to control the guide vane angle and the power output of the generator according to the real-time parameters of the fluid in the pipeline.

2. The pipeline-type waste heat generator set according to claim 1, characterized in that: The adjustable guide vane (22) includes a guide vane mounting cover (225), guide vanes (221), a drive ring (222), and a guide vane adjustment power mechanism. The guide vane mounting cover (225) is concentrically fixed to the inner cavity of the pipe section (1), and multiple guide vanes (221) are evenly distributed between the guide vane mounting cover (225) and the pipe section (1). The central rotating shafts at both ends of each guide vane (221) are respectively rotatably mounted through the guide vane mounting cover (225) and the pipe section (1) via sealed bearings. The outer wall of the pipe section (1) corresponds to the position of the guide vane (221). A drive ring (222) is rotatably mounted, and the outer shaft of each guide vane (221) is driven by a helical gear (224) meshing with the side teeth of the drive ring (222). The guide vane adjustment power mechanism includes a servo motor (223), and the output shaft of the servo motor (223) meshes with the teeth of the outer edge of the drive ring (222) through a worm. The control module drives the guide vane adjustment power mechanism to rotate the drive ring (222), thereby synchronously driving all guide vanes (221) to rotate around their own shafts through the helical gear (224), changing the opening and intake angle of the guide vanes.

3. A pipeline-type waste heat generator set according to claim 2, characterized in that: The turbine rotor (21) includes a worm gear center seat (211). Multiple rotor blades (212) are rotatably mounted on the side wall of the worm gear center seat (211) through sealed bearings at equal intervals. A motor cover (213) is fixedly connected to the front side of the worm gear center seat (211). A worm gear adjusting motor (214) is fixedly connected to the center of the inner cavity of the motor cover (213) through a bracket. The output shaft of the worm gear adjusting motor (214) meshes with the inner end of the shaft of the multiple rotor blades (212) through a bevel gear transmission mechanism.

4. A pipeline-type waste heat generator set according to claim 3, characterized in that: The control module includes: a data acquisition unit for acquiring fluid pressure, temperature, flow rate signals, spindle speed, vibration signals, and generator output electrical parameters in the pipeline; a processing unit with a built-in adaptive PID control algorithm for calculating the optimal guide vane opening command and generator load command based on the acquired signals; and an execution unit including the drive circuit of the guide vane adjustment power mechanism (223) and the worm gear adjustment motor (214) and the excitation control circuit of the generator.

5. A pipeline-type waste heat generator set according to claim 1, characterized in that: The spindle (4) is supported by two radial-thrust composite ceramic bearings (5). The bearings (5) are made of zirconia ceramic balls and have self-lubricating polymer cages, and are set in an independent bearing housing (51). Vibration and temperature sensors (52) are installed on the bearing housing (51) to monitor the spindle's operating status in real time.

6. A pipeline-type waste heat generator set according to claim 1, characterized in that: A flow guide (12) is provided at the internal inlet of the pipe section (1). The flow guide (12) is a venturi tube structure with the smallest throat section, which is directly opposite the blades of the turbine rotor (21). When the fluid flows through the venturi tube, it obtains the maximum flow velocity at the throat, thereby efficiently impacting the turbine rotor.

7. A pipeline-type waste heat generator set according to claim 1, characterized in that: It also includes a thermal management module (8), which includes a cooling coil (32) coiled around the outer wall of the generator sealing housing (33) and heat dissipation fins (13) integrally formed with the outer wall of the pipe section (1); the cooling coil (32) circulates a cooling medium driven by a small electric pump.

8. A pipeline-type waste heat generator set according to claim 1, characterized in that: The power output terminal of the generator (3) is connected to a power conversion unit, which includes an AC-DC rectifier, a DC-DC voltage regulator circuit and a DC-AC inverter. A supercapacitor module is connected in parallel on the middle DC bus of the DC-DC voltage regulator circuit as an energy storage buffer unit.

9. A pipeline-type waste heat generator set according to claim 1, characterized in that: The flange (11) of the pipe section (1) is provided with a set of replaceable adapter pipes (14), which are made of elastic metal, have an inner diameter that is the same as the inner diameter of the pipe section (1), and have different outer diameters to match external pipe flanges with different outer diameters.

10. A pipeline-type waste heat generator set according to claim 1, characterized in that: The blades of the turbine rotor (21) and the blades of the adjustable guide vane (22) are coated with a tungsten carbide wear-resistant and corrosion-resistant coating.

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