Waste heat recovery energy-saving equipment for generator set

Abstract

The utility model belongs to the technical field of waste heat recovery, and discloses a generator set waste heat recovery energy-saving device which comprises an adjusting mechanism, the adjusting mechanism comprises a servo motor, a gear is connected to the servo motor in a rotating mode, and a rotating disc is arranged on the side face of the gear. Through the cooperation of the movable heat absorption pipes, the inclined grooves and other structures, the heat absorption pipes can be adjusted according to the waste heat, and when the generator set is in low-load operation, the movable heat absorption pipes move to the sides, away from the exhaust pipe, of the fixed heat absorption pipes; the number of the heat absorption pipes is reduced, unnecessary energy loss caused by too small waste heat flow in the waste heat recovery process can be avoided, after the number of the heat absorption pipes is reduced, waste heat can flow in the remaining heat absorption pipes in a relatively concentrated mode, enough heat density is guaranteed, the heat exchange process can be conducted at the proper temperature difference, and the heat exchange efficiency is improved. And the heat exchange efficiency between the waste heat in the single heat absorption pipe and the heat absorption medium is improved.

Description

Technical Field

[0001] This utility model belongs to the field of waste heat recovery technology, specifically a waste heat recovery and energy-saving device for generator sets. Background Technology

[0002] Against the backdrop of continuously growing global energy demand and increasing emphasis on environmental protection, efficient energy utilization has become a key factor for development in various fields. As an important piece of equipment for power supply, generator sets generate a large amount of waste heat during operation. However, this waste heat is often not fully utilized and is directly discharged into the environment, which not only causes huge energy waste but also has negative impacts on the environment such as thermal pollution.

[0003] Currently, most waste heat recovery devices on the market have fixed heat exchange structures that cannot be adjusted according to different operating conditions of the generator set. When the generator set is running at low load, the waste heat decreases. If there are too many heat absorption tubes, the small amount of waste heat will be distributed among many heat absorption tubes, resulting in each heat absorption tube absorbing too little heat. This may not achieve an effective heat exchange temperature difference, resulting in low heat exchange efficiency. Therefore, we propose a waste heat recovery and energy-saving device for generator sets. Utility Model Content

[0004] To address the problem that most heat exchange structures mentioned in the background technology are fixed and cannot be adjusted according to different operating conditions of the generator set, and that when the generator set is running at low load, the waste heat decreases, and if there are too many heat absorption tubes, the small amount of waste heat will be distributed among many heat absorption tubes, resulting in each heat absorption tube absorbing too little heat, which may not achieve an effective heat exchange temperature difference and result in low heat exchange efficiency, this utility model provides a generator set waste heat recovery energy-saving device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a generator set waste heat recovery energy-saving device, including an adjustment mechanism, wherein the adjustment mechanism is provided inside an absorption mechanism, and a main body mechanism is provided on the side of the absorption mechanism;

[0006] The adjustment mechanism includes a servo motor with a gear rotatably connected to it. A turntable is provided on the side of the gear, and several teeth are fixedly connected to the side of the turntable near the gear. Several inclined grooves are evenly opened on the turntable, and a first sliding groove is opened on the side of the inclined groove. A partition is fixedly connected to the side of the inclined groove away from the first sliding groove. Several movable heat absorption tubes and several fixed heat absorption tubes are provided on the side of the turntable, and connectors are fixedly connected to both ends of the movable heat absorption tubes and the fixed heat absorption tubes.

[0007] Preferably, the turntable meshes with teeth and gears, and both the movable heat-absorbing tube and the fixed heat-absorbing tube are slidably connected to the first sliding groove through connectors. The movable heat-absorbing tubes and the fixed heat-absorbing tubes are staggered and distributed. The movable heat-absorbing tubes and the fixed heat-absorbing tubes are divided into several groups, with one movable heat-absorbing tube and one fixed heat-absorbing tube as a group. The connectors on the movable heat-absorbing tubes and the fixed heat-absorbing tubes in each group are located between two partitions, and the movable heat-absorbing tubes in each group are located on the side of the fixed heat-absorbing tubes closest to the partitions.

[0008] Preferably, the absorption mechanism includes two liquid collection chambers. The inner wall of each liquid collection chamber has several dispensing holes. On the side of each liquid collection chamber that is close to the other, several arc-shaped grooves and several fixing holes are provided. Several second sliding grooves are evenly provided inside the liquid collection chambers. Baffles are slidably connected inside the second sliding grooves. A hydraulic cylinder is provided on the surface of each liquid collection chamber. Several telescopic rods are slidably connected to the side of the hydraulic cylinder that is close to the liquid collection chamber. A water supply pipe and a water outlet pipe are fixedly connected to the bottom of each of the two liquid collection chambers. The ends of the water supply pipe and the water outlet pipe that are away from the liquid collection chambers are fixedly connected to the two sides of the energy conversion module, respectively. A heat insulation shell is fixedly connected between the two hydraulic cylinders.

[0009] Preferably, the arc-shaped grooves and the fixing holes are staggered, and the number of the liquid distribution holes is twice the number of the arc-shaped grooves, the fixing holes, and the second sliding grooves. The telescopic rod extends through the surface of the liquid collection chamber to the interior of the second sliding groove. The end of the telescopic rod away from the hydraulic cylinder is fixedly connected to the baffle. Half of the liquid distribution holes communicate with the second sliding grooves and the arc-shaped grooves respectively, and the other half of the liquid distribution holes communicate with the fixing holes respectively. The heat insulation shell is located outside the two liquid collection chambers, and the energy conversion module is located below the liquid collection chambers.

[0010] Preferably, the connector on the movable heat-absorbing tube is slidably connected to the arc-shaped groove, the connector on the fixed heat-absorbing tube is snapped into the fixed hole, several sets of movable and fixed heat-absorbing tubes are located between two liquid collection chambers, the side of the turntable away from the movable heat-absorbing tube is rotatably connected to the liquid collection chamber with the water outlet pipe fixedly connected, the end of the connector near the water outlet pipe passes through the turntable, the gear passes through the heat insulation shell and extends into the interior of the heat insulation shell, the servo motor is fixedly connected to the surface of the heat insulation shell, and several liquid distribution holes are respectively connected to the interior of several movable heat-absorbing tubes and several fixed heat-absorbing tubes through connectors.

[0011] Preferably, the main structure includes a generator set, an exhaust pipe is fixedly connected to the side of the generator set, a conical block is fixedly connected inside the exhaust pipe, a threaded guide groove is formed on the inner wall of the exhaust pipe, and a groove is formed on the surface of the exhaust pipe.

[0012] Preferably, the threaded guide groove is located on the side of the conical block away from the generator set, the groove is located on the outside of the position where the threaded guide groove is opened on the generator set, the liquid collection chamber is sleeved inside the groove, several sets of movable heat absorption pipes and fixed heat absorption pipes are distributed inside the groove, and several sets of movable heat absorption pipes and fixed heat absorption pipes are all in contact with the inner wall of the groove, and the energy conversion module is located on the side of the generator set.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a combination of movable heat-absorbing tubes and inclined grooves to adjust the heat-absorbing tubes according to the amount of waste heat. When the generator set is operating at low load, the movable heat-absorbing tubes are moved to the side of the fixed heat-absorbing tubes away from the exhaust pipe. Reducing the number of heat-absorbing tubes avoids unnecessary energy loss during waste heat recovery due to insufficient waste heat flow. After reducing the number of heat-absorbing tubes, the waste heat can flow relatively concentratedly in the remaining heat-absorbing tubes, ensuring sufficient heat density. This allows the heat exchange process to proceed at a suitable temperature difference, improving the heat exchange efficiency between waste heat and the heat-absorbing medium within a single heat-absorbing tube. Simultaneously, by reducing the number of heat-absorbing tubes, the waste heat flows stably within the limited number of tubes, reducing unstable factors and ensuring a more stable and continuous heat exchange process. This reduces temperature fluctuations and promotes stable heat exchange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the absorption mechanism of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a three-dimensional schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram showing the structural relationship between the connector and the rotating plate of this utility model.

[0020] In the diagram: 1. Adjustment mechanism; 101. Servo motor; 102. Gear; 103. Turntable; 104. Inclined groove; 105. Baffle; 106. Moving heat absorption tube; 107. Fixed heat absorption tube; 108. Connector; 109. Tooth; 110. First slide groove; 2. Absorption mechanism; 201. Liquid collection chamber; 202. Liquid distribution hole; 203. Arc groove; 204. Second slide groove; 205. Baffle; 206. Telescopic rod; 207. Hydraulic cylinder; 208. Fixing hole; 209. Water supply pipe; 210. Water outlet pipe; 211. Energy conversion module; 212. Heat insulation shell; 3. Main body mechanism; 301. Generator set; 302. Exhaust pipe; 303. Conical block; 304. Threaded guide groove; 305. Groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides a generator set waste heat recovery energy-saving device, including an adjustment mechanism 1, the adjustment mechanism 1 is provided inside the absorption mechanism 2, and the absorption mechanism 2 is provided on the side of the main body mechanism 3;

[0023] The adjustment mechanism 1 includes a servo motor 101, a gear 102 rotatably connected to the servo motor 101, a turntable 103 provided on the side of the gear 102, a number of teeth 109 fixedly connected to the side of the turntable 103 near the gear 102, a number of inclined grooves 104 evenly opened on the turntable 103, a first sliding groove 110 opened on the side of the inclined groove 104, a partition 105 fixedly connected to the side of the inclined groove 104 away from the first sliding groove 110, a number of movable heat absorption tubes 106 and a number of fixed heat absorption tubes 107 provided on the side of the turntable 103, and connectors 108 fixedly connected to both ends of the movable heat absorption tubes 106 and the fixed heat absorption tubes 107.

[0024] The turntable 103 meshes with the gear 102 through teeth 109. The movable heat absorption tube 106 and the fixed heat absorption tube 107 are slidably connected to the first slide groove 110 through the connector 108. The movable heat absorption tubes 106 and the fixed heat absorption tubes 107 are staggered. The movable heat absorption tubes 106 and the fixed heat absorption tubes 107 are divided into several groups with one movable heat absorption tube 106 and one fixed heat absorption tube 107 as a group. The connectors 108 on each group of movable heat absorption tubes 106 and fixed heat absorption tubes 107 are located between two partitions 105. Each group of movable heat absorption tubes 106 is located on the side of the fixed heat absorption tube 107 closest to the partition 105.

[0025] The absorption mechanism 2 includes two liquid collection chambers 201. The inner wall of the liquid collection chamber 201 is provided with several liquid distribution holes 202. Several arc-shaped grooves 203 and several fixing holes 208 are provided on the side of the two liquid collection chambers 201 that are close to each other. Several second sliding grooves 204 are evenly provided inside the liquid collection chamber 201. Baffles 205 are slidably connected inside the second sliding grooves 204. Hydraulic cylinders 207 are provided on the surface of the liquid collection chamber 201. Several telescopic rods 206 are slidably connected on the side of the hydraulic cylinders 207 that are close to the liquid collection chamber 201. Water supply pipes 209 and water outlet pipes 210 are fixedly connected to the bottom of the two liquid collection chambers 201 respectively. The ends of the water supply pipes 209 and water outlet pipes 210 that are away from the liquid collection chambers 201 are fixedly connected to the two sides of the energy conversion module 211 respectively. A heat insulation shell 212 is fixedly connected between the two hydraulic cylinders 207.

[0026] The above scheme involves setting up a movable heat absorber 106 and a sloping groove 104, among other structures. The heat absorber can be adjusted according to the amount of waste heat. When the generator set 301 is operating at low load, the waste heat temperature and flow rate decrease. At this time, the servo motor 101 is activated, causing the gear 102 to rotate. The rotation of the gear 102, through the teeth 109, drives the turntable 103 to rotate outwards in the arc-shaped groove 203, causing the connector 108 to slide inside the first sliding groove 110. Simultaneously, the fixed heat absorber 107 on the movable heat absorber 106 is stressed by the partition 105, causing it to move into the sloping groove 104. This also causes the connector 108 on the movable heat absorber 106 to slide away from the exhaust pipe 302 within the arc-shaped groove 203. Finally, the connector 108 on the movable heat absorber 106 will slide into the arc-shaped groove 203. The inner walls of groove 203 and inclined groove 104 abut against each other, and the movable heat absorption tube 106 moves to the side of the fixed heat absorption tube 107 away from the exhaust pipe 302. At this time, only a few fixed heat absorption tubes 107 are in contact with the inner wall of groove 305. Reducing the number of heat absorption tubes can avoid unnecessary energy loss in the waste heat recovery process due to insufficient waste heat flow. After reducing the number of heat absorption tubes, the waste heat can flow relatively concentratedly in the remaining heat absorption tubes, ensuring sufficient heat density, so that the heat exchange process can be carried out under a suitable temperature difference, improving the heat exchange efficiency between waste heat and heat absorption medium in a single heat absorption tube. At the same time, by reducing the number of heat absorption tubes, the waste heat flows stably in a limited number of heat absorption tubes, reducing such unstable factors, ensuring that the heat exchange process is more stable and continuous, reducing temperature fluctuations, and facilitating the stable operation of heat exchange.

[0027] like Figures 2 to 5 As shown, several arc-shaped grooves 203 and several fixed holes 208 are staggered. The number of liquid distribution holes 202 is twice the number of arc-shaped grooves 203, fixed holes 208 and second sliding grooves 204. The telescopic rod 206 extends through the surface of the liquid collection chamber 201 to the interior of the second sliding groove 204. The end of the telescopic rod 206 away from the hydraulic cylinder 207 is fixedly connected to the baffle 205. Half of the liquid distribution holes 202 are connected to several second sliding grooves 204 and several arc-shaped grooves 203 respectively, and the other half of the liquid distribution holes 202 are connected to several fixed holes 208 respectively. The heat insulation shell 212 is located outside the two liquid collection chambers 201, and the energy conversion module 211 is located below the liquid collection chamber 201.

[0028] The connector 108 on the movable heat absorption tube 106 is slidably connected to the arc groove 203, and the connector 108 on the fixed heat absorption tube 107 is snapped into the fixed hole 208. Several sets of movable heat absorption tubes 106 and fixed heat absorption tubes 107 are located between two liquid collection chambers 201. The side of the turntable 103 away from the movable heat absorption tube 106 is rotatably connected to the liquid collection chamber 201 with the water outlet pipe 210 fixedly connected. The end of the connector 108 near the water outlet pipe 210 passes through the turntable 103. The gear 102 passes through the heat insulation shell 212 and extends into the interior of the heat insulation shell 212. The servo motor 101 is fixedly connected to the surface of the heat insulation shell 212. Several liquid distribution holes 202 are connected to the interior of several movable heat absorption tubes 106 and several fixed heat absorption tubes 107 respectively through the connector 108. The energy conversion module 211 is equipped with an evaporator, an expander and a condenser, and stores a reusable heat absorption medium.

[0029] The main structure 3 includes a generator set 301. An exhaust pipe 302 is fixedly connected to the side of the generator set 301. A conical block 303 is fixedly connected inside the exhaust pipe 302. A threaded guide groove 304 is provided on the inner wall of the exhaust pipe 302. A groove 305 is provided on the surface of the exhaust pipe 302. The threaded guide groove 304 is located on the side of the conical block 303 away from the generator set 301. The groove 305 is located on the outside of the position where the threaded guide groove 304 is provided on the generator set 301. The liquid collection chamber 201 is sleeved inside the groove 305. Several sets of movable heat absorption pipes 106 and fixed heat absorption pipes 107 are distributed inside the groove 305. The several sets of movable heat absorption pipes 106 and fixed heat absorption pipes 107 are all in contact with the inner wall of the groove 305. The energy conversion module 211 is located on the side of the generator set 301. A sensor is provided on the conical block 303.

[0030] The above solution, through the combination of a conical block 303 and a threaded guide groove 304, facilitates the reduction of the heat flow discharge velocity. After entering the exhaust pipe 302, the heat flow is pushed towards the inner wall of the exhaust pipe 302 by the conical block 303 and flows outward along the path of the threaded guide groove 304, lengthening the heat flow path and thus prolonging the heat discharge time. This also increases the contact time and contact area between the heat flow and the pipe wall, making the heat flow within the exhaust pipe more uniform and the heat conduction on the pipe wall more even. This helps improve the uniformity of heat exchange throughout the entire waste heat recovery process. Uniformity is achieved, avoiding localized overheating or undercooling, and reducing the amount of waste heat discharged between heat flows that is not effectively utilized. This allows for more complete recovery and utilization of the waste heat generated by generator set 301, thereby improving the energy utilization efficiency of the entire generator set 301 system. Furthermore, because the inner side of this part of the pipe has a threaded guide groove 304 and the outer side has a groove 305, the pipe wall here is relatively thin, allowing the waste heat in the heat flow to be conducted to the pipe wall. The heat absorption pipe installed in the groove 305 can more effectively recover and utilize the waste heat absorbed by the pipe wall, thereby improving the efficiency of waste heat recovery.

[0031] The working principle and usage process of this utility model are as follows: Temperature and flow sensors installed on the conical block 303 detect the waste heat discharged from the generator set 301 to the exhaust pipe 302. When the generator set 301 is operating normally or under overload, the waste heat has a higher temperature, faster flow rate, and larger flow volume. At this time, the heat flow entering the exhaust pipe 302 is pushed towards the inner wall of the exhaust pipe 302 by the conical block 303 and flows outward along the path of the threaded guide groove 304, lengthening the heat flow path and thus prolonging the heat discharge time and increasing the contact time and contact area between the heat flow and the pipe wall. Furthermore, because the inner side of this part of the pipe has a threaded guide groove 304 and the outer side has a groove 305, the pipe wall is relatively thin, allowing the waste heat in the heat flow to be conducted to the pipe wall. Simultaneously, the heat-absorbing medium stored in the energy conversion module 211 is injected through the water pipe 209. The liquid is connected to the liquid collection chamber 201 and flows into several sets of moving heat absorption tubes 106 and fixed heat absorption tubes 107 through several dispensing holes 202. The heat absorption tubes and heat absorption medium absorb the heat from the tube walls, raising the temperature of the heat absorption medium and turning it into a high-temperature and high-pressure gas. Then, it enters the energy conversion module 211 through the water outlet pipe 210. First, it passes through the evaporator inside the module to further enhance its energy state. Then, it enters the expander to expand the heat absorption medium and do work, converting thermal energy into mechanical energy. This mechanical energy can be converted into electrical energy to power the servo motor 101 and the hydraulic cylinder 207. The low-pressure gaseous heat absorption medium discharged from the expander enters the condenser, exchanges heat with the external cooling medium, and condenses into a liquid. It can then enter the liquid collection chamber 201 through the water supply pipe 209 for the next cycle, completing the recovery of waste heat.

[0032] When generator set 301 is operating at low load, the waste heat temperature and flow rate decrease. At this time, the servo motor 101 is started to rotate gear 102. The rotation of gear 102 will drive turntable 103 to rotate outward in the arc groove 203 through teeth 109, causing connector 108 to slide inside the first slide groove 110. At the same time, the fixed heat absorption tube 107 on the moving heat absorption tube 106 will be stressed by the partition 105, causing it to move into the inclined groove 104. This will also cause connector 108 on the moving heat absorption tube 106 to slide away from the exhaust pipe 302 inside the arc groove 203. Finally, the connector 108 on the moving heat absorption tube 106 will abut against the inner wall of the arc groove 203 and the inclined groove 104, and the moving heat absorption tube 106 will move to the side of the fixed heat absorption tube 107 away from the exhaust pipe 302. At this time, only a few fixed heat absorption tubes 107 are in contact with the inner wall of the groove 305. At the same time, the hydraulic cylinder 207 will move the telescopic rod 206 towards the exhaust pipe 302, causing the baffle 205 to slide inside the second sliding groove 204, blocking the liquid distribution hole 202 that communicates with the arc groove 203, preventing the heat absorption medium from passing through it. Then, the above waste heat recovery steps can be repeated.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A generator set waste heat recovery energy saving device comprising a regulating mechanism (1), characterized in that: The adjusting mechanism (1) is provided with the inside of the absorption mechanism (2), and the side of the absorption mechanism (2) is provided with the main body mechanism (3); The adjusting mechanism (1) includes a servo motor (101), the servo motor (101) is rotatably connected with a gear (102), the side of the gear (102) is provided with a rotating disc (103), a plurality of teeth (109) are fixedly connected to the side of the rotating disc (103) close to the gear (102), a plurality of inclined grooves (104) are uniformly formed in the rotating disc (103), a first sliding groove (110) is formed in the side of the inclined groove (104), a baffle (105) is fixedly connected to the side of the inclined groove (104) away from the first sliding groove (110), a plurality of movable heat absorption pipes (106) and a plurality of fixed heat absorption pipes (107) are arranged on the side of the rotating disc (103), and the two ends of the movable heat absorption pipes (106) and the fixed heat absorption pipes (107) are fixedly connected with connecting heads (108).

2. The generator set waste heat recovery energy saving device according to claim 1, characterized in that: The rotating disc (103) is engaged between the gear (102) and the teeth (109), the movable heat absorption pipes (106) and the fixed heat absorption pipes (107) are slidably connected between the connecting heads (108) and the first sliding groove (110), the movable heat absorption pipes (106) and the fixed heat absorption pipes (107) are distributed in a staggered manner, the movable heat absorption pipes (106) and the fixed heat absorption pipes (107) are divided into a plurality of groups, the connecting heads (108) on the movable heat absorption pipes (106) and the fixed heat absorption pipes (107) in each group are located between two baffles (105), and the movable heat absorption pipes (106) in each group are located on the side of the fixed heat absorption pipes (107) close to the baffle (105).

3. The generator set waste heat recovery energy saving device according to claim 1, characterized in that: The absorption mechanism (2) includes two liquid collecting tanks (201), a plurality of liquid distribution holes (202) are formed in the inner wall of the liquid collecting tank (201), a plurality of arc-shaped grooves (203) and a plurality of fixed holes (208) are formed in the side of the two liquid collecting tanks (201) close to each other, a plurality of second sliding grooves (204) are uniformly formed in the inside of the liquid collecting tank (201), a baffle (205) is slidably connected in the inside of the second sliding groove (204), a hydraulic cylinder (207) is arranged on the surface of the liquid collecting tank (201), a plurality of telescopic rods (206) are slidably connected to the side of the hydraulic cylinder (207) close to the liquid collecting tank (201), a water inlet pipe (209) and a water outlet pipe (210) are fixedly connected to the bottoms of the two liquid collecting tanks (201) respectively, the ends of the water inlet pipe (209) and the water outlet pipe (210) away from the liquid collecting tank (201) are fixedly connected with the two sides of an energy conversion module (211) respectively, and a heat insulation shell (212) is fixedly connected between the two hydraulic cylinders (207).

4. The generator set waste heat recovery energy saving device according to claim 3, characterized in that: A plurality of arc-shaped grooves (203) are distributed in a staggered manner with a plurality of fixed holes (208), the number of the liquid distribution holes (202) is twice the number of the arc-shaped grooves (203), the fixed holes (208) and the second sliding grooves (204), the telescopic rod (206) extends through the surface of the liquid collection tank (201) to the inside of the second sliding groove (204), the end of the telescopic rod (206) away from the hydraulic cylinder (207) is fixedly connected with the baffle (205), half of the liquid distribution holes (202) are respectively communicated with a plurality of second sliding grooves (204) and a plurality of arc-shaped grooves (203), and the other half of the liquid distribution holes (202) are respectively communicated with a plurality of fixed holes (208), the heat insulation shell (212) is located outside the two liquid collection tanks (201), and the energy conversion module (211) is located below the liquid collection tank (201).

5. The generator set waste heat recovery energy saving device according to claim 3, characterized in that: The connecting head (108) on the movable heat absorption pipe (106) is slidably connected with the arc-shaped groove (203), the connecting head (108) on the fixed heat absorption pipe (107) is clamped with the fixed hole (208), a plurality of groups of movable heat absorption pipes (106) and fixed heat absorption pipes (107) are located between the two liquid collection tanks (201), the rotary disc (103) is rotatably connected with the liquid collection tank (201) having the water outlet pipe (210) fixedly connected to one side away from the movable heat absorption pipe (106), one end of the connecting head (108) close to the water outlet pipe (210) penetrates the rotary disc (103), the gear (102) extends through the heat insulation shell (212) to the inside of the heat insulation shell (212), the servo motor (101) is fixedly connected with the surface of the heat insulation shell (212), and a plurality of liquid distribution holes (202) are respectively communicated with the interiors of a plurality of movable heat absorption pipes (106) and a plurality of fixed heat absorption pipes (107) through the connecting head (108).

6. The generator set waste heat recovery energy saving device according to claim 3, characterized in that: The main mechanism (3) comprises a generator set (301), and the side surface of the generator set (301) is fixedly connected with an exhaust pipe (302). The inside of the exhaust pipe (302) is fixedly connected with a tapered block (303). The inner wall of the exhaust pipe (302) is provided with a threaded guide groove (304). The surface of the exhaust pipe (302) is provided with a groove (305).

7. The generator set waste heat recovery energy saving device according to claim 6, characterized in that: The threaded guide groove (304) is located on the side of the tapered block (303) away from the generator set (301). The groove (305) is located on the outside of the position of the generator set (301) where the threaded guide groove (304) is arranged. The liquid collection tank (201) is sleeved in the groove (305). A plurality of groups of movable heat absorption pipes (106) and fixed heat absorption pipes (107) are distributed in the groove (305). A plurality of groups of movable heat absorption pipes (106) and fixed heat absorption pipes (107) are attached to the inner wall of the groove (305). The energy conversion module (211) is located on the side of the generator set (301).

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