Secondary network waste heat heating device
By designing a waste heat heating device for the secondary network, the waste heat of the return water is converted into electrical energy by using thermoelectric sheets and turbine components, the problem of unused waste heat in the secondary network is solved, the energy consumption of the primary network is reduced and the user supply is improved Thermal temperature and experience.
Patent Information
- Application Number
- CN202421090182.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-20
AI Technical Summary
In the prior art, the waste heat of the secondary network cannot be effectively utilized, resulting in high energy consumption of the primary network, insufficient user heating temperature, and poor user experience.
A secondary network waste heat heating device is designed, which uses thermoelectric plates to convert the waste heat of return water into electrical energy, and supplies power to heat through output cables to reduce the energy consumption of the primary network and increase the heating temperature of users. The device includes a water tank, thermoelectric sheet, control box, radiator and heat sink fins to generate electricity through temperature differences and to improve power generation efficiency using turbine components.
The effective utilization of waste heat of the secondary network is achieved, the energy consumption of the primary network is reduced, the heating temperature and experience of users is improved, and the power generation efficiency is improved by optimizing the heat dissipation structure and turbine components.
Smart Images
Figure CN222256788U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste heat heating devices, in particular to a secondary network waste heat heating device. Background Art
[0002] The secondary network in the heating system refers to the hot water pipeline network from the heat exchange station in the heating community to the entrance of the heating user building. The secondary hot water is heat-exchanged with the hot water in the primary network (i.e. the pipeline network from the total heat source of the central heating system to the heat exchange stations in each heating community) through the heat exchanger, thereby adjusting the temperature of the hot water.
[0003] The return water temperature of the secondary network is relatively high and contains waste heat. Reusing the waste heat of the secondary network for heating will greatly reduce the energy consumption of the primary network, increase the heating temperature of users, and improve user experience.
[0004] In the prior art, semiconductor thermoelectric material (English name: semiconductor thermoelectric material) is a semiconductor material with a large thermoelectric effect, also known as thermoelectric material. It can directly convert thermal energy into electrical energy, or directly generate cooling effect from electrical energy. The Chinese utility model patent with the prior art publication number CN220043251U proposes a thermoelectric power generation device, which utilizes the temperature difference between the heat conduction part and the heat dissipation part to collect and convert the "waste heat" energy into electrical energy through a thermoelectric power generation sheet, thereby increasing resource conservation, having a simple structure and being easy to implement.
[0005] Based on the above existing use of semiconductor thermoelectric materials to generate electricity using the waste heat at the downstream end of the secondary network, and then using the generated electricity to heat the upstream end of the secondary network and users, the waste heat can be utilized, the energy consumption of the primary network can be reduced, and the heating temperature of users can be increased, thereby improving user experience, which will be practical. Utility Model Content
[0006] In order to solve the above technical problems, the utility model provides a secondary network waste heat heating device that utilizes secondary network waste heat to generate electricity and heat, reduces the energy consumption of the primary network, increases the heating temperature of the user, improves the user experience, and has good practicality.
[0007] The utility model discloses a secondary network waste heat heating device, comprising a water inlet pipe; a water tank, a thermoelectric sheet, a control box, a plurality of output cables, a radiator and a plurality of heat dissipation fins, a chamber is arranged inside the water tank, the output end of the water inlet pipe is communicated with the chamber of the water inlet pipe, the water tank is provided with a water outlet pipe communicated with the chamber, the inner ends of the plurality of thermoelectric sheets are all extended into the chamber of the water tank, the other ends of the plurality of thermoelectric sheets are all extended out of the water tank, the control box is installed outside the water tank, the control box is electrically connected with the plurality of thermoelectric sheets, the control box is provided with a plurality of output cables, the outer ends of the plurality of thermoelectric sheets are all thermally connected with the radiator, and a plurality of heat dissipation fins are arranged on the side wall of the radiator; when working, the return water of the secondary network is input into the water tank through the water inlet pipe In the chamber, the return water is brought into contact with the inner ends of the multiple thermoelectric sheets, so that the multiple thermoelectric sheets become high-temperature ends, and the cold air from the outside passes through the multiple heat dissipation fins to take away the heat of the multiple heat dissipation fins and the radiator, so that the radiator dissipates heat and cools the outer ends of the multiple thermoelectric sheets, so that the outer ends of the multiple thermoelectric sheets become low-temperature ends, and the temperature difference between the high-temperature ends and the low-temperature ends of the multiple thermoelectric sheets generates voltage to achieve the purpose of power generation. The control box supplies the generated electricity to the water supply end of the secondary network or the electric heater arranged in the user's home through multiple output cables, so that the electric heater heats the secondary network or the user's home, thereby realizing waste heat heating of the secondary network, reducing the energy consumption of the primary network, and increasing the heating temperature of the user, thereby improving the user experience and having good practicality.
[0008] Preferably, it also includes a heat-insulating layer, which is wrapped around the outside of the water tank; by providing the heat-insulating layer, the heat-insulating performance of the water tank is improved and the heat loss in the water tank is reduced.
[0009] Preferably, it also includes two air guide plates 1 and two air guide plates 2, the two air guide plates 1 are respectively installed obliquely on the left and right sides of the upper part of the radiator, the two air guide plates 1 are arranged in a V shape, the two air guide plates 2 are respectively installed obliquely on the left and right sides of the lower part of the radiator, the two air guide plates 2 are arranged in an A shape, and the radiator is movably installed on the water tank; the air guide plates 1 and 2 on the same side form a trumpet-shaped air gathering port, which is beneficial to increase the speed of cold air flowing through multiple heat dissipation fins and improve the heat dissipation effect. When the cold air flows from the upper left side of the radiator to the lower right side of the radiator, the cold air When the air flow direction is not parallel to the multiple heat sinks, the two air guide plates one and the one air guide plate two receive wind force, and the wind receiving area of the two air guide plates one is larger than the wind receiving area of the one air guide plate two, so that the two air guide plates play a leading role together, and the two air guide plates one drive the upper end of the radiator to rotate right until the multiple heat sinks are parallel to the flow direction of cold air, thereby realizing the guiding effect of the two air guide plates one and the two air guide plates two on the radiator, driving the radiator to adjust its direction following the flow direction of cold air, so that the multiple heat sinks are always parallel to the flow direction of cold air, thereby improving the heat dissipation effect.
[0010] Preferably, it also includes a lower rotating shaft, an upper rotating shaft and two elastic members, the lower rotating shaft is installed at the lower part of the water tank, the lower part of the radiator is rotatably connected to the lower rotating shaft, the upper rotating shaft is installed at the upper part of the water tank, the upper ends of the two elastic members are rotatably connected to the two sides of the upper rotating shaft respectively, and the lower ends of the two elastic members are rotatably connected to the upper part of the radiator; the lower rotating shaft rotationally supports the radiator, and the two elastic members and the upper rotating shaft elastically support the upper part of the radiator, so that the radiator can rotate around the lower rotating shaft when exposed to wind, and when the radiator rotates, one of the two elastic members contracts and the other extends. When the wind stops, the elastic force of the two elastic members causes the radiator to rotate and reset, thereby realizing the movable installation of the radiator and the water tank, which is practical.
[0011] Preferably, the elastic member is a shock-absorbing spring; the shock-absorbing spring can reduce the vibration of the radiator and the plurality of heat dissipating fins, thereby improving reliability.
[0012] Preferably, it also includes multiple hoses, and the outer ends of the multiple thermoelectric sheets are respectively connected to the radiator through the multiple hoses, and the multiple hoses are filled with heat transfer medium; by arranging the multiple hoses, the radiator can rotate relative to the multiple thermoelectric sheets, and the heat transfer medium in the multiple hoses transfers the heat at the outer ends of the thermoelectric sheets to the radiator, thereby improving the heat transfer efficiency.
[0013] Preferably, it also includes a turbine shell, a water inlet manifold, an inner turbine shell, a drive shaft, a turbine, a turntable and a friction disk, the output end of the water inlet pipe is connected to the input end of the turbine shell, the output end of the turbine shell is connected to the chamber of the water tank through the water inlet manifold, the outer end of the inner turbine shell is concentrically connected to the output cable, the inner end of the inner turbine shell is provided with a disk-shaped cavity, the inner end of the inner turbine shell extends into the chamber of the water tank, the drive shaft is rotatably installed in the inner turbine shell, the outer end of the drive shaft is provided with a turbine, the turbine is located in the turbine shell, the inner end of the turbine is provided with a turntable, the turntable is located in the disk-shaped cavity of the inner turbine shell, the friction disk is installed In the disk-shaped cavity of the inner turbine shell and in friction contact with the turntable; the return water of the secondary network is input into the turbine shell through the water inlet pipe to drive the turbine to rotate, and then is input into the water tank through the water inlet branch. The turbine drives the drive shaft to rotate, and the drive shaft drives the turntable to rotate. The turntable rubs against the friction disk to generate heat. The inner end of the inner turbine shell dissipates heat to the chamber of the water tank, thereby increasing the temperature of the return water in the water tank, increasing the temperature difference between the inner and outer ends of multiple thermoelectric sheets, converting the kinetic energy of the return water into thermal energy, reducing the flow rate of the return water, extending the contact time between the return water in the water tank and the multiple thermoelectric sheets, and improving the power generation efficiency.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: when working, the return water of the secondary network is input into the chamber of the water tank through the water inlet pipe, so that the return water contacts the inner ends of multiple thermoelectric plates, making the multiple thermoelectric plates become high-temperature ends, and the external cold air passes through multiple heat dissipation fins to take away the heat of the multiple heat dissipation fins and the radiator, so that the radiator dissipates heat and cools the outer ends of the multiple thermoelectric plates, making the outer ends of the multiple thermoelectric plates become low-temperature ends, and the temperature difference between the high-temperature ends and the low-temperature ends of the multiple thermoelectric plates generates voltage to achieve the purpose of power generation, and the control box supplies the generated electricity to the water supply end of the secondary network or the electric heater arranged in the user's home through multiple output cables, so that the electric heater heats the secondary network or the user's home, realizes waste heat heating of the secondary network, reduces the energy consumption of the primary network, and increases the heating temperature of the user, improves the user experience, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a partial front sectional structural schematic diagram of the utility model;
[0017] Figure 3 It is a schematic diagram of the side section structure of the utility model;
[0018] Figure 4 It is a schematic diagram of the axonometric structure of the utility model;
[0019] Figure 5 It is a structural schematic diagram of a thermoelectric sheet, a heat sink, a heat sink fin, a first air guide plate, a second air guide plate and an upper rotating shaft;
[0020] Figure 6 It is a schematic diagram of the structure of the water inlet pipe, turbine housing, inner turbine housing, drive shaft, turbine, turntable and friction plate.
[0021] Markings in the attached drawing: 1. water inlet pipe; 2. water tank; 3. thermoelectric sheet; 4. control box; 5. output cable; 6. radiator; 7. cooling fins; 8. insulation layer; 9. air guide plate 1; 10. air guide plate 2; 11. lower rotating shaft; 12. upper rotating shaft; 13. elastic part; 14. hose; 15. turbine housing; 16. water inlet manifold; 17. inner turbine housing; 18. drive shaft; 19. turbine; 20. turntable; 21. friction plate. DETAILED DESCRIPTION
[0022] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0023] Example 1
[0024] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a secondary network waste heat heating device includes a water inlet pipe 1; it also includes a water tank 2, a thermoelectric sheet 3, a control box 4, a plurality of output cables 5, a radiator 6 and a plurality of heat dissipation fins 7, a chamber is arranged inside the water tank 2, the output end of the water inlet pipe 1 is communicated with the chamber of the water inlet pipe 1, the water tank 2 is provided with a water outlet pipe communicated with the chamber, the inner ends of the plurality of thermoelectric sheets 3 are all extended into the chamber of the water tank 2, the other ends of the plurality of thermoelectric sheets 3 are all extended out of the water tank 2, the control box 4 is installed outside the water tank 2, the control box 4 is electrically connected to the plurality of thermoelectric sheets 3, the control box 4 is provided with a plurality of output cables 5, the outer ends of the plurality of thermoelectric sheets 3 are all thermally connected to the radiator 6, and a plurality of heat dissipation fins 7 are arranged on the side wall of the radiator 6; it also includes a thermal insulation layer 8, and the thermal insulation layer 8 is wrapped around the outside of the water tank 2; it also includes The turbine shell 15, the water inlet manifold 16, the inner turbine shell 17, the drive shaft 18, the turbine 19, the turntable 20 and the friction disk 21, the output end of the water inlet pipe 1 is connected to the input end of the turbine shell 15, the output end of the turbine shell 15 is communicated with the chamber of the water tank 2 through the water inlet manifold 16, the outer end of the inner turbine shell 17 is concentrically connected to the output cable 5, the inner end of the inner turbine shell 17 is provided with a disk-shaped cavity, the inner end of the inner turbine shell 17 extends into the chamber of the water tank 2, the drive shaft 18 is rotatably installed in the inner turbine shell 17, the turbine 19 is installed at the outer end of the drive shaft 18, the turbine 19 is located in the turbine shell 15, the turntable 20 is installed at the inner end of the turbine 19, the turntable 20 is located in the disk-shaped cavity of the inner turbine shell 17, and the friction disk 21 is installed in the disk-shaped cavity of the inner turbine shell 17 and is in friction contact with the turntable 20.
[0025] The heat preservation performance of the water tank 2 is improved by providing the heat preservation layer 8, and the heat loss in the water tank 2 is reduced. During operation, the return water of the secondary network is input into the turbine shell 15 through the water inlet pipe 1 to drive the turbine 19 to rotate, and then is input into the water tank 2 through the water inlet branch 16. The turbine 19 drives the drive shaft 18 to rotate, and the drive shaft 18 drives the turntable 20 to rotate. The turntable 20 rubs against the friction disk 21 to generate heat. The inner end of the inner turbine shell 17 dissipates heat to the chamber of the water tank 2, thereby increasing the temperature of the return water in the water tank 2, increasing the temperature difference between the inner end and the outer end of the multiple thermoelectric sheets 3, converting the kinetic energy of the return water into thermal energy, reducing the flow rate of the return water, and prolonging the contact time between the return water in the water tank 2 and the multiple thermoelectric sheets 3. It contacts the inner ends of the multiple thermoelectric sheets 3, making the multiple thermoelectric sheets 3 become high-temperature ends, and the external cold air passes through the multiple heat dissipation fins 7 to take away the heat of the multiple heat dissipation fins 7 and the radiator 6, so that the radiator 6 dissipates heat and cools the outer ends of the multiple thermoelectric sheets 3, making the outer ends of the multiple thermoelectric sheets 3 become low-temperature ends, and the temperature difference between the high-temperature ends and the low-temperature ends of the multiple thermoelectric sheets 3 generates voltage to achieve the purpose of power generation, and the control box 4 supplies the generated electricity to the water supply end of the secondary network or the electric heater arranged in the user's home through the multiple output cables 5, so that the electric heater heats the secondary network or the user's home, realizes the waste heat heating of the secondary network, reduces the energy consumption of the primary network, and increases the heating temperature of the user, thereby improving the user experience.
[0026] Example 2
[0027] like Figures 1 to 5 As shown, on the basis of Example 1, it also includes two air guide plates 1 9 and two air guide plates 2 10, the two air guide plates 1 9 are respectively installed obliquely on the left and right sides of the upper part of the radiator 6, the two air guide plates 1 9 are arranged in a V shape, the two air guide plates 2 10 are respectively installed obliquely on the left and right sides of the lower part of the radiator 6, the two air guide plates 2 10 are arranged in an A shape, and the radiator 6 is movably installed on the water tank 2; it also includes a lower rotating shaft 11, an upper rotating shaft 12 and two elastic members 13, the lower rotating shaft 11 is installed at the lower part of the water tank 2, the lower part of the radiator 6 is rotatably connected to the lower rotating shaft 11, the upper rotating shaft 12 is installed at the upper part of the water tank 2, the upper ends of the two elastic members 13 are respectively rotatably connected to the two sides of the upper rotating shaft 12, and the lower ends of the two elastic members 13 are rotatably connected to the upper part of the radiator 6; the elastic member 13 is a shock-absorbing spring; it also includes a plurality of hoses 14, the outer ends of the plurality of thermoelectric sheets 3 are respectively connected to the radiator 6 through the plurality of hoses 14, and the plurality of hoses 14 are filled with heat transfer medium.
[0028] The lower rotating shaft 11 supports the radiator 6 for rotation, and the two elastic members 13 and the upper rotating shaft 12 elastically support the upper part of the radiator 6, so that the radiator 6 can rotate around the lower rotating shaft 11 when exposed to wind. When the radiator 6 rotates, one of the two elastic members 13 contracts and the other extends. When the wind stops, the elastic force of the two elastic members 13 causes the radiator 6 to rotate and reset, thereby realizing the movable installation of the radiator 6 and the water tank 2. The shock-absorbing spring can reduce the vibration of the radiator 6 and the multiple heat dissipation fins 7. By arranging multiple hoses 14, the radiator 6 can rotate relative to the multiple thermoelectric sheets 3. The heat transfer medium in the multiple hoses 14 transfers the heat from the outer ends of the thermoelectric sheets 3 to the radiator 6, thereby improving the heat transfer efficiency. The wind guide plate 1 9 and the wind guide plate 2 10 on the same side form a trumpet-shaped air gathering port, which is beneficial to improving The speed of cold air flowing through the multiple heat dissipation fins 7 is high, and the heat dissipation effect is improved. When the cold air flows from the upper left of the radiator 6 to the lower right of the radiator 6, that is, the flow direction of the cold air is not parallel to the multiple heat dissipation fins 7, the two air guide plates 1 9 and the one air guide plate 2 10 receive wind force, and the wind receiving area of the two air guide plates 1 9 is larger than the wind receiving area of the one air guide plate 2 10, so that the two air guide plates 1 9 play a leading role, so that the two air guide plates 1 9 drive the upper end of the radiator 6 to rotate to the right until the multiple heat dissipation fins 7 are parallel to the flow direction of the cold air, thereby realizing the guiding effect of the two air guide plates 1 9 and the two air guide plates 2 10 on the radiator 6, and driving the radiator 6 to adjust its direction following the flow direction of the cold air, so that the multiple heat dissipation fins 7 are always parallel to the flow direction of the cold air, thereby improving the heat dissipation effect.
[0029] like Figures 1 to 6 As shown, a secondary network waste heat heating device of the utility model, when working, firstly, the return water of the secondary network is input into the turbine shell 15 through the water inlet pipe 1 to drive the turbine 19 to rotate, and then is input into the water tank 2 through the water inlet branch 16, the turbine 19 drives the driving shaft 18 to rotate, the driving shaft 18 drives the rotating disk 20 to rotate, the rotating disk 20 rubs the friction disk 21 to generate heat, the inner end of the inner turbine shell 17 dissipates heat into the chamber of the water tank 2, and the temperature of the return water in the water tank 2 is increased, and then the return water contacts the inner ends of the multiple thermoelectric sheets 3, The multiple thermoelectric sheets 3 become high-temperature ends, and then the cold air from the outside passes through the multiple heat dissipation fins 7 to take away the heat of the multiple heat dissipation fins 7 and the radiator 6, so that the radiator 6 dissipates heat and cools the outer ends of the multiple thermoelectric sheets 3, making the outer ends of the multiple thermoelectric sheets 3 become low-temperature ends. The temperature difference between the high-temperature ends and the low-temperature ends of the multiple thermoelectric sheets 3 generates voltage, and finally the control box 4 supplies the generated electricity to the water supply end of the secondary network or the electric heater arranged in the user's home through the multiple output cables 5, so that the electric heater can provide heating to the secondary network or the user's home.
[0030] The main functions achieved by this utility model are:
[0031] 1. Use the waste heat from the secondary network to generate electricity and provide heating, reduce the energy consumption of the primary network, and increase the heating temperature for users, improve user experience, and have good practicality;
[0032] 2. The cooling fins change direction with the wind direction, which has good heat dissipation effect;
[0033] 3. The frictional heat generated by the turbine assembly increases the temperature of the flowing water.
[0034] A secondary network waste heat heating device of the utility model has an installation method, a connection method or a setting method that are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; a water inlet pipe 1, a water tank 2, a thermoelectric sheet 3, an output cable 5, a heat dissipation fin 7, an insulation layer 8, a lower rotating shaft 11, an upper rotating shaft 12, an elastic member 13, a hose 14, a turbine shell 15, a drive shaft 18, a turbine 19, a turntable 20, and a friction plate 21 of a secondary network waste heat heating device of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.
[0035] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A secondary network waste heat heating device, comprising a water inlet pipe (1); characterized in that: The invention also comprises a water tank (2), a thermoelectric sheet (3), a control box (4), a plurality of output cables (5), a radiator (6) and a plurality of heat dissipation fins (7); a chamber is arranged inside the water tank (2); the output end of the water inlet pipe (1) is connected to the chamber of the water inlet pipe (1); the water tank (2) is provided with a water outlet pipe connected to the chamber; the inner ends of the plurality of thermoelectric sheets (3) are all extended into the chamber of the water tank (2); the other ends of the plurality of thermoelectric sheets (3) are all extended to the outside of the water tank (2); the control box (4) is installed outside the water tank (2); the control box (4) is electrically connected to the plurality of thermoelectric sheets (3); the control box (4) is provided with a plurality of output cables (5); the outer ends of the plurality of thermoelectric sheets (3) are all thermally connected to the radiator (6); and a plurality of heat dissipation fins (7) are arranged on the side wall of the radiator (6).
2. A secondary network waste heat heating device as claimed in claim 1, characterized in that: It also includes a heat-insulating layer (8), which is wrapped around the outside of the water tank (2).
3. A secondary network waste heat heating device as claimed in claim 1, characterized in that: The radiator (6) further comprises two first air guide plates (9) and two second air guide plates (10). The two first air guide plates (9) are respectively installed obliquely on the left and right sides of the upper part of the radiator (6). The two first air guide plates (9) are arranged in a V shape. The two second air guide plates (10) are respectively installed obliquely on the left and right sides of the lower part of the radiator (6). The two second air guide plates (10) are arranged in an A shape. The radiator (6) is movably installed on the water tank (2).
4. A secondary network waste heat heating device as claimed in claim 3, characterized in that: The heat exchanger further comprises a lower rotating shaft (11), an upper rotating shaft (12) and two elastic members (13); the lower rotating shaft (11) is mounted at the lower part of the water tank (2); the lower part of the radiator (6) is rotatably connected to the lower rotating shaft (11); the upper rotating shaft (12) is mounted at the upper part of the water tank (2); the upper ends of the two elastic members (13) are rotatably connected to the two sides of the upper rotating shaft (12) respectively; and the lower ends of the two elastic members (13) are rotatably connected to the upper part of the radiator (6).
5. A secondary network waste heat heating device as claimed in claim 4, characterized in that: The elastic member (13) is a shock absorbing spring.
6. A secondary network waste heat heating device as claimed in claim 3, characterized in that: It also comprises a plurality of hoses (14), the outer ends of the plurality of thermoelectric sheets (3) are respectively connected to the radiator (6) via the plurality of hoses (14), and the plurality of hoses (14) are all filled with heat transfer medium.
7. A secondary network waste heat heating device as claimed in claim 1, characterized in that: The invention also comprises a turbine shell (15), a water inlet manifold (16), an inner turbine shell (17), a drive shaft (18), a turbine (19), a rotating disk (20) and a friction disk (21); the output end of the water inlet pipe (1) is connected to the input end of the turbine shell (15); the output end of the turbine shell (15) is connected to the chamber of the water tank (2) through the water inlet manifold (16); the outer end of the inner turbine shell (17) is concentrically connected to the output cable (5); and the inner end of the inner turbine shell (17) is provided with a disk-shaped cavity. The inner end of the inner turbine shell (17) extends into the chamber of the water tank (2), the drive shaft (18) is rotatably mounted in the inner turbine shell (17), the outer end of the drive shaft (18) is mounted with a turbine (19), the turbine (19) is located in the turbine shell (15), the inner end of the turbine (19) is mounted with a turntable (20), the turntable (20) is located in the disk cavity of the inner turbine shell (17), and the friction disk (21) is mounted in the disk cavity of the inner turbine shell (17) and is in friction contact with the turntable (20).