Waste heat recovery device

Abstract

The utility model provides a waste heat recovery device which comprises a waste heat recovery mechanism, an energy storage mechanism and a waste heat utilization mechanism. The waste heat recovery mechanism is connected with an external waste heat pipeline, and the waste heat recovery mechanism is used for converting heat energy of waste heat into air pressure potential energy; a first connecting pipe is arranged between the waste heat recovery mechanism and the energy storage mechanism, and one end of the first connecting pipe communicates with the upper portion of the waste heat recovery mechanism. During use, the waste heat recovery mechanism is arranged to be connected with a waste heat pipeline, waste heat enters the waste heat recovery mechanism and then heats liquid or gas in the waste heat recovery mechanism, so that steam is generated and compressed or gas is expanded, and the energy storage mechanism stores high-pressure gas generated in the waste heat recovery mechanism. When the electromagnetic valve is in a communicating state, gas in the energy storage mechanism can flow out at a high speed to drive the waste heat utilization mechanism to do work, and therefore the waste heat recycling effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy recovery technology, and in particular to a waste heat recovery device. Background Technology

[0002] Heat energy is used in many places, such as urban heating and factory production. For example, underfloor heating systems need to heat circulating water, and chemical plants need to heat raw materials, both of which require heat energy to raise the temperature. During the use of this heat energy, high-temperature steam is generally generated, and this steam is mostly released directly into the natural environment.

[0003] When steam is formed, the liquid absorbs a large amount of energy, and when the steam is directly discharged, this energy gradually dissipates, resulting in a waste of resources.

[0004] Therefore, this application proposes a waste heat recovery device for recovering and reusing waste heat generated during processing and production. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a waste heat recovery device to solve the problem of resource waste caused by direct discharge of waste heat mentioned in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a waste heat recovery device, including a waste heat recovery mechanism, an energy storage mechanism, and a waste heat utilization mechanism;

[0007] The waste heat recovery mechanism is connected to an external waste heat pipeline and is used to convert the thermal energy of waste heat into gas pressure potential energy.

[0008] A first connecting pipe is provided between the waste heat recovery mechanism and the energy storage mechanism. One end of the first connecting pipe is connected to the upper part of the waste heat recovery mechanism, and the other end of the first connecting pipe is connected to the lower part of the energy storage mechanism. The waste heat recovery mechanism transmits the generated gas pressure potential energy to the energy storage mechanism through the first connecting pipe. A one-way valve is provided in the middle of the first connecting pipe to prevent backflow in the energy storage mechanism.

[0009] A second connecting pipe is provided between the energy storage mechanism and the waste heat utilization mechanism. One end of the second connecting pipe is connected to the bottom of the energy storage mechanism, and the other end of the second connecting pipe is connected to the waste heat utilization mechanism. A solenoid valve is provided in the middle of the second connecting pipe. The gas pressure potential energy in the energy storage mechanism drives the waste heat utilization mechanism to perform energy conversion through the second connecting pipe.

[0010] Preferably, the waste heat recovery mechanism includes a heat collection tank, in which a waste heat input pipe is provided. The waste heat input pipe connects the inside and outside of the heat collection tank and is connected to an external waste heat pipeline.

[0011] The heat collection tank may store liquids for generating steam or inert gases that expand when heated.

[0012] Preferably, the waste heat input pipe is a spiral pipe, which extends along the axial direction of the heat collection tank;

[0013] One end of the waste heat input pipe extends from the inner bottom of the heat collection tank to the outside of the heat collection tank, and the other end of the waste heat input pipe is located above the inside of the heat collection tank.

[0014] Preferably, the energy storage mechanism includes a sealed pressure tank, with the first connecting pipe and the second connecting pipe both connected to the inner bottom of the sealed pressure tank. A vertical traction rod is vertically arranged on the axis of the sealed pressure tank, and an energy storage counterweight plate is arranged on the outer surface of the vertical traction rod. The outer surface of the energy storage counterweight plate is completely in contact with the inner wall of the sealed pressure tank, and the energy storage counterweight plate can slide up and down along the axial direction of the vertical traction rod.

[0015] Preferably, the inner bottom of the sealed pressure tank is provided with several equally spaced support frames, which are used to support the bottom of the energy storage counterweight plate, so that there is a gap between the bottom of the energy storage counterweight plate and the inner bottom of the sealed pressure tank.

[0016] Preferably, the top of the support frame is higher than the connection point between the first connecting pipe and the second connecting pipe and the sealed pressure tank.

[0017] Preferably, the waste heat utilization mechanism includes a power transmission component and a kinetic energy conversion component. The power transmission component is connected to the second connecting pipe, and the axis of the power transmission component is connected to the axis of the kinetic energy conversion component through a rotating shaft. The pressure potential energy drives the power transmission component to drive the kinetic energy conversion component to do work.

[0018] Preferably, the power transmission component includes a sealed housing, on which an air inlet and an air outlet are respectively provided, and the air inlet is connected to the second connecting pipe;

[0019] The sealed housing is equipped with rotatable turbine blades, the outer ends of which are in contact with the inner wall of the sealed housing.

[0020] The kinetic energy conversion component is axially connected to the turbine blades.

[0021] Preferably, the kinetic energy conversion component is a generator.

[0022] As described above, the waste heat recovery device of this utility model has the following beneficial effects:

[0023] 1. This utility model connects a waste heat recovery mechanism to a waste heat pipeline. After the waste heat enters the waste heat recovery mechanism, it heats the liquid or gas inside the mechanism, thereby generating steam and compressing the steam or expanding the gas. The energy storage mechanism stores the high-pressure gas generated in the waste heat recovery mechanism. When the solenoid valve is in the connected state, the gas in the energy storage mechanism will flow out at high speed to drive the waste heat utilization mechanism to do work, thereby achieving the effect of waste heat recovery and reuse.

[0024] 2. This utility model increases the efficiency of waste heat transfer to the heat collection tank by setting a waste heat input pipe inside the heat energy collection tank and arranging the waste heat input pipe in a spiral shape to increase the heat conduction area, thereby improving the waste heat conversion efficiency.

[0025] 3. This utility model uses a vertical traction rod inside a sealed pressure tank to support and guide the energy storage counterweight plate. When high-pressure gas enters the sealed pressure tank, it pushes the energy storage counterweight plate upward. When the gas pressure inside the sealed pressure tank is released, the energy storage counterweight plate slides down under the action of gravity, thereby increasing the output speed of the high-pressure gas and improving the efficiency of the high-pressure gas-driven waste heat utilization mechanism.

[0026] 4. This utility model can directly connect the waste heat input pipe to the waste heat discharge pipe, so that the waste heat directly fills the inside of the heat energy collection tank and is pressurized. Then, it is directly transmitted to the waste heat utilization mechanism through the bottom of the energy storage counterweight plate to drive the waste heat utilization mechanism to do work, or the solenoid valve is closed to store the high-pressure gas in the sealed pressure tank for release when needed, thus achieving the effect of multiple waste heat recovery modes.

[0027] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0028] Figure 1 The diagram shown is a structural schematic of this utility model.

[0029] Figure 2 The diagram shown is a cross-sectional view of the energy storage mechanism of this utility model.

[0030] Figure 3 The diagram shows the position of the energy storage counterweight plate of this utility model after it is compressed.

[0031] Figure 4 The diagram shown is a cross-sectional view of the waste heat recovery mechanism of this utility model.

[0032] Figure 5The diagram shown is a side view of the structure of this utility model.

[0033] Figure 6 The diagram shown is a cross-sectional view of the power transmission component of this utility model.

[0034] Component designation explanation:

[0035] 1. Waste heat recovery mechanism; 11. Heat collection tank; 12. Waste heat input pipe;

[0036] 2. Energy storage mechanism; 21. Sealed pressure tank; 22. Vertical traction rod; 23. Energy storage counterweight plate; 24. Support frame;

[0037] 3. Waste heat utilization mechanism; 31. Power transmission component; 311. Sealed housing; 312. Air inlet; 313. Air outlet; 314. Turbine blades; 32. Kinetic energy conversion component;

[0038] 4. First connecting pipe;

[0039] 5. Check valve;

[0040] 6. Second connecting pipe;

[0041] 7. Solenoid valve. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0043] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0044] like Figures 1-4 As shown, this utility model provides a waste heat recovery device, including a waste heat recovery mechanism 1, an energy storage mechanism 2, and a waste heat utilization mechanism 3.

[0045] Waste heat recovery unit 1 is connected to an external waste heat pipeline. After the external waste heat enters the waste heat recovery unit 1, it will heat the liquid or inert gas in the waste heat recovery unit 1, causing the liquid to generate steam and the gas to expand, thereby increasing the pressure inside the waste heat recovery unit 1 and realizing the conversion of the thermal energy of waste heat into gas pressure potential energy.

[0046] A first connecting pipe 4 is provided between the waste heat recovery mechanism 1 and the energy storage mechanism 2. One end of the first connecting pipe 4 is connected to the upper part of the waste heat recovery mechanism 1, and the other end is connected to the lower part of the energy storage mechanism 2. The waste heat recovery mechanism 1 transmits the generated gas pressure potential energy to the energy storage mechanism 2 through the first connecting pipe 4. The gas pressure potential energy generated in the waste heat recovery mechanism 1 enters the energy storage mechanism 2 through the first connecting pipe 4 for storage or transfer. A one-way valve 5 is provided in the middle of the first connecting pipe 4 to prevent backflow in the energy storage mechanism 2. The gas pressure potential energy generated in the waste heat recovery mechanism 1 enters the energy storage mechanism 2 for storage after passing through the one-way valve 5, while the gas pressure potential energy stored in the energy storage mechanism 2 is blocked by the one-way valve 5, thereby preventing pressure loss in the energy storage mechanism 2 and achieving the purpose of gas pressure potential energy storage.

[0047] A second connecting pipe 6 is provided between the energy storage mechanism 2 and the waste heat utilization mechanism 3. One end of the second connecting pipe 6 is connected to the bottom of the energy storage mechanism 2, and the other end is connected to the waste heat utilization mechanism 3. The gas pressure potential energy stored in the energy storage mechanism 2 is input into the waste heat utilization mechanism 3 through the second connecting pipe 6. The release of the gas pressure potential energy drives the waste heat utilization mechanism 3 to perform work, thereby realizing the utilization of gas pressure potential energy. A solenoid valve 7 is provided in the middle of the second connecting pipe 6. The solenoid valve 7 is connected to an external power source, and its opening and closing can be controlled by controlling the power source. The solenoid valve 7 and the one-way valve 5 cooperate to keep the energy storage mechanism 2 temporarily sealed, so as to realize the storage of gas pressure potential energy. When the solenoid valve 7 is in the open state, the gas pressure potential energy in the energy storage mechanism 2 drives the waste heat utilization mechanism 3 to perform energy conversion through the second connecting pipe 6. At the same time, when the solenoid valve 7 is in the normally open state, the gas pressure potential energy in the waste heat recovery mechanism 1 will directly drive the waste heat utilization mechanism 3 through the energy storage mechanism 2, which is used when the amount of waste heat is large and energy storage is not required.

[0048] like Figure 4As shown, in some embodiments, the waste heat recovery mechanism 1 of this utility model includes a heat collection tank 11. A waste heat input pipe 12 is provided in the heat collection tank 11, connecting the inside and outside of the heat collection tank 11, and is connected to an external waste heat pipeline. External waste heat is input into the interior of the heat collection tank 11 through the waste heat input pipe 12, thereby heating the interior of the heat collection tank 11. Heating the interior of the heat collection tank 11 increases the pressure within it. Only when the pressure in the heat collection tank 11 exceeds the sealing force of the one-way valve 5 will the pressure be transmitted to the energy storage mechanism 2 for storage through the first connecting pipe 4.

[0049] The heat collection tank 11 can store liquids used to generate steam or inert gases that expand when heated. When the liquid is heated by waste heat, steam is generated, and as the steam increases, high pressure is formed in the heat collection tank 11. When the high-pressure gas exceeds the pressure in the energy storage mechanism 2, it pushes the one-way valve 5 to enter the energy storage mechanism 2 for storage. When using inert gases, the inert gases expand when heated, thereby increasing the pressure inside the heat collection tank 11. In actual use, the effect of liquids is greater than that of inert gases.

[0050] like Figure 4 In some embodiments, the waste heat input pipe 12 of this invention is a spiral pipe, which extends along the axial direction of the heat collection tank 11. This increases the heat conduction area of ​​the waste heat input pipe 12, enabling faster heating of liquids or gases when the heat collection tank 11 contains them, thus improving the pressurization effect.

[0051] One end of the waste heat input pipe 12 extends from the inner bottom of the heat collection tank 11 to the outside of the heat collection tank 11 for connection with an external waste heat conveying pipe. The other end of the waste heat input pipe 12 is located above the inside of the heat collection tank 11, enabling waste heat to be transferred to the inside of the heat collection tank 11.

[0052] like Figure 2 and Figure 3As shown, in some embodiments, the energy storage mechanism 2 of this utility model includes a sealed pressure tank 21, which is a sealed tank body used to store the high-pressure gas generated in the heat energy collection tank 11. The first connecting pipe 4 and the second connecting pipe 6 are both connected to the inner bottom of the sealed pressure tank 21, and cooperate with the one-way valve 5 and the solenoid valve 7 to allow the high-pressure gas to remain in the sealed pressure tank 21. A vertical traction rod 22 is vertically arranged along the axis of the sealed pressure tank 21, and an energy storage counterweight plate 23 is arranged on the outer surface of the vertical traction rod 22. The outer surface of the energy storage counterweight plate 23 is completely in contact with the inner wall of the sealed pressure tank 21, used to divide the interior of the sealed pressure tank 21 into upper and lower sealed spaces, and the energy storage counterweight plate 23 can be driven by pressure. The energy storage counterweight plate 23 can slide up and down along the axial direction of the vertical traction rod 22. When the high-pressure gas is transmitted from the first connecting pipe 4 to the interior of the sealed pressure tank 21, the pressure of the gas will push the energy storage counterweight plate 23 upward. When the internal pressure of the sealed pressure tank 21 is released, the energy storage counterweight plate 23 will slide down under the action of gravity, thereby compressing the gas in the bottom space of the sealed pressure tank 21 to increase the gas output rate and enhance the power to drive the waste heat utilization mechanism 3 to do work, thus preventing the pressure in the sealed pressure tank 21 from becoming insufficient as the amount of gas released increases. In order to enable the energy storage counterweight plate 23 to rise more smoothly, a pressure valve can be installed at the top of the sealed pressure tank 21 to discharge the gas in the space above the energy storage counterweight plate 23, preventing the space above the energy storage counterweight plate 23 from being compressed and causing pressure to increase, making it difficult for the energy storage counterweight plate 23 to move upward.

[0053] like Figure 2 As shown, in some embodiments, the inner bottom of the sealed pressure tank 21 of this invention is provided with several equally spaced support frames 24. The support frames 24 are used to support the bottom of the energy storage counterweight plate 23, leaving a gap between the bottom of the energy storage counterweight plate 23 and the inner bottom of the sealed pressure tank 21. This prevents the bottom of the energy storage counterweight plate 23 from fitting against the inner bottom of the sealed pressure tank 21, which would prevent the high-pressure gas entering the sealed pressure tank 21 from the first connecting pipe 4 from pushing the energy storage counterweight plate 23 upward.

[0054] like Figure 2 As shown, in some embodiments, the top of the support frame 24 of this invention is higher than the connection point between the first connecting pipe 4 and the second connecting pipe 6 and the sealed pressure tank 21. When gas enters the sealed pressure tank 21 from the first connecting pipe 4, it can prevent the entering gas from being positioned above the energy storage counterweight plate 23. At the same time, the high-pressure gas can directly act on the lower part of the energy storage counterweight plate 23, improving the efficiency of the high-pressure gas driving the energy storage counterweight plate 23 to rise.

[0055] like Figures 3-5As shown, in some embodiments, the waste heat utilization mechanism 3 of the present utility model includes a power transmission member 31 and a kinetic energy conversion member 32. The power transmission member 31 is connected to the second connecting pipe 6. When the solenoid valve 7 is in a connected state, a large amount of high-pressure gas stored in the sealed pressure tank 21 will enter the power transmission member 31 at high speed through the second connecting pipe 6. The axis of the power transmission member 31 is connected to the axis of the kinetic energy conversion member 32 through a rotating shaft. The pneumatic potential energy generated by the high-pressure gas drives the kinetic energy conversion member 32 to do work by driving the power transmission member 31, thereby achieving the effect of recycling and reusing waste heat.

[0056] As Figure 6 shown, in some embodiments, the power transmission member 31 of the present utility model includes a sealed housing 311, and an air inlet hole 312 and an air outlet hole 313 are respectively provided on the sealed housing 311. Among them, the air inlet hole 312 is connected to the second connecting pipe 6, which is used to enable high-speed gas to enter the interior of the sealed housing 311, and the air outlet hole 313 is used to discharge the gas in the sealed housing 311, so that the gas can flow.

[0057] A rotatable turbine blade 314 is provided inside the sealed housing 311, and the outer end of the turbine blade 314 is in contact with the inner wall of the sealed housing 311. When the high-speed flowing gas enters the interior of the sealed housing 311 from the second connecting pipe 6, the high-speed flowing gas will blow on the turbine blade 314, causing the turbine blade 314 to rotate. The kinetic energy conversion member 32 is connected to the axis of the turbine blade 314, and the rotating turbine blade 314 will drive the kinetic energy conversion member 32 to do work through a connecting shaft. <000013,6>As Figure 6 shown, in some embodiments, the kinetic energy conversion member 32 of the present utility model can be a generator. When the rotor of the kinetic energy conversion member 32 rotates, an electric current will be generated. The electric current passes through the devices supporting the generator for rectification and voltage transformation, and is finally stored through a battery pack for release when needed.

[0059] In summary, for the waste heat recovery device of the present utility model, by connecting the waste heat recovery mechanism 1 to the waste heat pipeline, after the waste heat enters the waste heat recovery mechanism 1, it heats the liquid or gas inside the waste heat recovery mechanism 1, thereby generating steam and compressing the steam or expanding the gas. The energy storage mechanism 2 stores the high-pressure gas energy generated in the waste heat recovery mechanism 1. When the solenoid valve 7 is in a connected state, the gas in the energy storage mechanism 2 will flow out at high speed to drive the waste heat utilization mechanism 3 to do work, thereby achieving the effect of recycling and reusing waste heat.

[0060] This invention improves the efficiency of waste heat transfer to the heat collection tank 11 by setting a waste heat input pipe 12 inside the heat collection tank 11 and arranging the waste heat input pipe 12 in a spiral shape to increase the heat conduction area, thereby improving the waste heat conversion efficiency.

[0061] This invention utilizes a vertical traction rod 22 installed inside a sealed pressure tank 21 to support and guide the energy storage counterweight plate 23. When high-pressure gas enters the sealed pressure tank 21, it pushes the energy storage counterweight plate 23 upward. When the internal pressure of the sealed pressure tank 21 is released, the energy storage counterweight plate 23 slides down under the influence of gravity, thereby increasing the output speed of the high-pressure gas and improving the efficiency of the high-pressure gas-driven waste heat utilization mechanism 3.

[0062] This invention allows the waste heat to be directly connected to the waste heat discharge pipe via the waste heat input pipe 12, thereby directly filling the interior of the heat collection tank 11 with pressurized waste heat. Then, it is directly transmitted to the waste heat utilization mechanism 3 through the bottom of the energy storage counterweight plate 23 to drive the waste heat utilization mechanism 3 to do work, or the solenoid valve 7 is closed to store the high-pressure gas in the sealed pressure tank 21 and release it when needed, thus achieving the effect of multiple waste heat recovery modes.

[0063] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0064] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A waste heat recovery device, characterized in that, It includes a waste heat recovery mechanism (1), an energy storage mechanism (2), and a waste heat utilization mechanism (3); The waste heat recovery mechanism (1) is connected to an external waste heat pipeline. The waste heat recovery mechanism (1) is used to convert the thermal energy of waste heat into gas pressure potential energy. A first connecting pipe (4) is provided between the waste heat recovery mechanism (1) and the energy storage mechanism (2). One end of the first connecting pipe (4) is connected to the upper part of the waste heat recovery mechanism (1), and the other end of the first connecting pipe (4) is connected to the lower part of the energy storage mechanism (2). The waste heat recovery mechanism (1) transmits the generated gas pressure potential energy to the energy storage mechanism (2) through the first connecting pipe (4). A one-way valve (5) is provided in the middle of the first connecting pipe (4) to prevent backflow in the energy storage mechanism (2). A second connecting pipe (6) is provided between the energy storage mechanism (2) and the waste heat utilization mechanism (3). One end of the second connecting pipe (6) is connected to the bottom of the energy storage mechanism (2), and the other end of the second connecting pipe (6) is connected to the waste heat utilization mechanism (3). A solenoid valve (7) is provided in the middle of the second connecting pipe (6). The gas pressure potential energy in the energy storage mechanism (2) drives the waste heat utilization mechanism (3) to perform energy conversion through the second connecting pipe (6).

2. The waste heat recovery device according to claim 1, characterized in that: The waste heat recovery mechanism (1) includes a heat collection tank (11), and a waste heat input pipe (12) is provided in the heat collection tank (11). The waste heat input pipe (12) connects the inside and outside of the heat collection tank (11) and is connected to an external waste heat pipeline. The heat collection tank (11) may store liquids for generating steam or inert gases that expand when heated.

3. The waste heat recovery device according to claim 2, characterized in that: The waste heat input pipe (12) is a spiral pipe, which extends along the axial direction of the heat collection tank (11); One end of the waste heat input pipe (12) extends from the inner bottom of the heat collection tank (11) to the outside of the heat collection tank (11), and the other end of the waste heat input pipe (12) is located above the inside of the heat collection tank (11).

4. The waste heat recovery device according to claim 1, characterized in that: The energy storage mechanism (2) includes a sealed pressure tank (21). The first connecting pipe (4) and the second connecting pipe (6) are both connected to the inner bottom of the sealed pressure tank (21). A vertical traction rod (22) is vertically arranged on the axis of the sealed pressure tank (21). An energy storage counterweight plate (23) is arranged on the outer surface of the vertical traction rod (22). The outer surface of the energy storage counterweight plate (23) is completely in contact with the inner wall of the sealed pressure tank (21). The energy storage counterweight plate (23) can slide up and down along the axial direction of the vertical traction rod (22).

5. The waste heat recovery device according to claim 4, characterized in that: The inner bottom of the sealed pressure tank (21) is provided with several equally spaced support frames (24), which are used to support the bottom of the energy storage counterweight plate (23) so that there is a gap between the bottom of the energy storage counterweight plate (23) and the inner bottom of the sealed pressure tank (21).

6. The waste heat recovery device according to claim 5, characterized in that: The top of the support frame (24) is higher than the connection between the first connecting pipe (4) and the second connecting pipe (6) and the sealed pressure tank (21).

7. The waste heat recovery device according to claim 1, characterized in that: The waste heat utilization mechanism (3) includes a power transmission component (31) and a kinetic energy conversion component (32). The power transmission component (31) is connected to the second connecting pipe (6). The axis of the power transmission component (31) and the axis of the kinetic energy conversion component (32) are connected by a rotating shaft. The pressure potential energy drives the power transmission component (31) to drive the kinetic energy conversion component (32) to do work.

8. The waste heat recovery device according to claim 7, characterized in that: The power transmission component (31) includes a sealed housing (311), on which an air inlet (312) and an air outlet (313) are respectively provided, and the air inlet (312) is connected to the second connecting pipe (6); The sealed housing (311) is provided with a rotatable turbine blade (314) inside, and the outer end of the turbine blade (314) is in contact with the inner wall of the sealed housing (311). The kinetic energy conversion component (32) is axially connected to the turbine blade (314).

9. The waste heat recovery device according to claim 8, characterized in that: The kinetic energy conversion component (32) is a generator.

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