High-efficiency waste heat recovery conversion device

Abstract

The application relates to the technical field of high-efficiency waste heat recovery conversion devices, and discloses a high-efficiency waste heat recovery conversion device, which comprises a hot waste gas exhaust pipe provided with a wind scooper, a waste heat collection box, an exhaust discharge chamber, a heat exchange tank and a waste gas solid particle capturing chamber, the heat exchange tank is fixedly arranged on the waste gas solid particle capturing chamber, the heat exchange tank, the waste gas solid particle capturing chamber, an activated carbon adsorption chamber and the exhaust discharge chamber are communicated, waste gas enters the heat exchange tank through the hot waste gas exhaust pipe, sequentially passes through the waste gas solid particle capturing chamber and the activated carbon adsorption chamber, and is discharged from an exhaust outlet at the rear of the exhaust discharge chamber, the heat exchange device further comprises a heat exchange circulation pipe, and heat conduction oil is arranged in the heat exchange circulation pipe. The kinetic energy of the waste gas drives the rotation of the impeller, and under the cooperation of the magnetic attraction assembly, the rotation of the propelling screw is driven, and the heat conduction oil arranged in the heat exchange circulation pipe is driven to circulate, the heat conduction oil absorbs heat quickly, surges into the waste heat collection box, and makes the waste heat collection box heat up, and the overall structure is compact and reasonable.

Description

Technical Field

[0001] This invention relates to the field of high-efficiency waste heat recovery and conversion devices, and in particular to a high-efficiency waste heat recovery and conversion device. Background Technology

[0002] A Chinese patent publication (CN218937096U) discloses a waste heat recovery and conversion device, including a mounting frame. The upper right side of the mounting frame is fixedly connected to the lower side of a fan. The fan is connected to the lower right side of a waste gas pipe. The middle of the waste gas pipe is connected to a heat exchange box. An aluminum-based copper-coated heat-conducting pipe is embedded inside the heat exchange box. The lower side of the aluminum-based copper-coated heat-conducting pipe is connected to the inlet end of a water inlet pipe. The upper side of the aluminum-based copper-coated heat-conducting pipe is connected to the outlet end of a water outlet pipe. The left side of the heat exchange box is an insulated water tank. The lower side of the insulated water tank is a main control module. The rear side of the main control module is fixedly connected to the front side of the mounting frame. This recovery and conversion device can filter impurities in the water through a filter module and can clean the scale on the inner wall of the water pipe in time through a pulse descaling unit, which can prevent blockage of the inner wall of the water pipe and the heat exchange pipe and improve the heat exchange efficiency of the device. When the device malfunctions, it can be detected in time through indicator lights and alarms, which can prevent heat loss and waste. The outlet water temperature can be controlled by a proportional integral valve combined with an operation panel and an interactive screen.

[0003] However, its heat recovery effect on exhaust gas is generally poor.

[0004] This case is proposed to address or improve upon the shortcomings or deficiencies of existing technologies. Summary of the Invention

[0005] This invention is achieved by the following technical solution:

[0006] A high-efficiency waste heat recovery and conversion device includes a hot waste gas exhaust pipe with a wind guide shroud, a waste heat collection box, an exhaust chamber, a heat exchange tank, and a waste gas solid particulate capture chamber. The heat exchange tank is fixedly installed on the waste gas solid particulate capture chamber. The heat exchange tank, the waste gas solid particulate capture chamber, the activated carbon adsorption chamber, and the exhaust chamber are interconnected. Waste gas enters the heat exchange tank through the hot waste gas exhaust pipe, passes through the waste gas solid particulate capture chamber and the activated carbon adsorption chamber in sequence, and is discharged from the exhaust port behind the exhaust chamber. The device also includes a heat exchange circulation pipe, which contains heat transfer oil. The heat exchange circulation pipe is partially exposed and passes through the waste heat collection box, the exhaust chamber, the activated carbon adsorption chamber, the waste gas solid particulate capture chamber, and the heat exchange tank. The heat transfer oil flows counterclockwise and absorbs heat from the waste gas in the heat exchange tank, which is then carried to the waste heat collection box for collection and storage.

[0007] In a preferred embodiment, a tangential duct connector is fixedly provided on the heat exchange tank, and the tangential duct connector is connected to the hot exhaust gas pipe, so that the exhaust gas enters the heat exchange tank along the tangential direction of the heat exchange tank.

[0008] In a preferred embodiment, a bearing swivel base is provided at the top of the heat exchange tank, and an impeller is rotatably provided at the lower end of the bearing swivel base. After the exhaust gas is blown into the heat exchange tank through the tangential air duct joint, it drives the impeller to rotate.

[0009] In a preferred embodiment, a propulsion screw is rotatably mounted inside the heat exchange circulation pipe section located within the heat exchange tank. A rubber strip is fixed to the edge of the propulsion screw, sealing it in contact with the inner wall of the heat exchange circulation pipe. A neodymium magnet block is annularly fixed to the upper end of the propulsion screw, and a neodymium magnet block is also annularly fixed to the inner wall of the impeller. When the impeller rotates, the magnetic attraction between the neodymium magnets drives the propulsion screw to rotate, and the heat transfer oil inside the propulsion screw begins to circulate. In this way, the low-temperature heat transfer oil generates a large temperature difference with the internal waste gas when passing through the heat exchange tank, which facilitates rapid heat absorption. Then, the heat transfer oil moves and carries the heat to the waste heat collection box. After the waste gas is cooled, it is discharged after passing through the waste gas solid particle capture chamber, the activated carbon adsorption chamber, and the exhaust emission chamber.

[0010] In a preferred embodiment, the inner wall of the heat exchange tank, as well as the outer wall of the heat exchange circulation pipe and the impeller, are provided with an anti-corrosion coating.

[0011] In a preferred embodiment, an electrical control box is also included to control the electrical equipment of the device.

[0012] In a preferred embodiment, an electrostatic grid adsorber is provided in the waste gas solid particle capture chamber, and ventilation slots running vertically through the electrostatic grid adsorber are provided between the electrostatic grid adsorbers to allow waste gas to be discharged into the activated carbon adsorption chamber.

[0013] In a preferred embodiment, a heat-insulating coating is provided on the outside of the rubidium magnet disposed at the upper end of the propulsion screw, and the operating temperature of the hard body portion on the propulsion screw does not exceed 200 degrees Celsius.

[0014] In a preferred embodiment, a heat-insulating coating is provided on the surface of the impeller, and a heat-insulating coating is also provided on the outside of the rubidium magnet disposed on the inner wall of the impeller, and the temperature of the impeller does not exceed 200 degrees Celsius during operation.

[0015] The advantages and positive effects of this invention are: 1. The impeller is driven to rotate by the kinetic energy of the exhaust gas, which in turn drives the propulsion screw to rotate under the action of the magnetic attraction component, thereby driving the heat transfer oil in the heat exchange circulation pipe to circulate. The heat transfer oil absorbs heat quickly and then surges into the waste heat collection box to raise its temperature. The overall structure is compact and reasonable, requires no motor drive, has low energy consumption, and low cost. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of 23 and related accessories installed in the heat exchange tank 12 in this invention.

[0019] The following are labeled in the attached diagram: 10. Air guide hood; 11. Hot exhaust gas pipe; 12. Heat exchange tank; 13. Heat exchange circulation pipe; 14. Exhaust gas solid particle capture chamber; 15. Activated carbon adsorption chamber; 16. Exhaust gas discharge chamber; 17. Electrical control box; 18. Waste heat collection box; 19. Bearing slewing base; 20. Impeller; 21. Propeller screw; 22. Tangential duct joint. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention. The embodiments of the invention are further described in detail below with reference to the accompanying drawings:

[0021] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0022] like Figure 1-2 As shown, the high-efficiency waste heat recovery and conversion device of the present invention includes a hot waste gas exhaust pipe 11 with a wind guide shroud 10, a waste heat collection box 18, an exhaust chamber 16, a heat exchange tank 12, and a waste gas solid particle capture chamber 14. The heat exchange tank 12 is fixedly installed on the waste gas solid particle capture chamber 14. The heat exchange tank 12, the waste gas solid particle capture chamber 14, the activated carbon adsorption chamber 15, and the exhaust chamber 16 are connected. Waste gas enters the heat exchange tank 12 through the hot waste gas exhaust pipe 11 and passes through the waste gas exhaust chamber 16 in sequence. After passing through the solid particle capture chamber 14 and the activated carbon adsorption chamber 15, the exhaust gas is discharged from the exhaust port behind the exhaust chamber 16. The system also includes a heat exchange circulation pipe 13, which contains heat transfer oil. The portion of the heat exchange circulation pipe 13 exposed to the outside passes through the waste heat collection box 18, the exhaust chamber 16, the activated carbon adsorption chamber 15, the waste gas solid particle capture chamber 14, and the heat exchange tank 12. The heat transfer oil flows counterclockwise and absorbs the heat from the waste gas in the heat exchange tank 12, which is then carried to the waste heat collection box 18 for collection and storage.

[0023] In a preferred embodiment, a tangential duct connector 22 is fixedly provided on the heat exchange tank 12. The tangential duct connector 22 is connected to the hot exhaust gas pipe 11, and the exhaust gas enters the heat exchange tank 12 along the tangential direction of the heat exchange tank 12.

[0024] In a preferred embodiment, a bearing slewing base 19 is provided at the top of the heat exchange tank 12, and an impeller 20 is rotatably provided at the lower end of the bearing slewing base 19. After the exhaust gas is blown into the heat exchange tank 12 through the tangential air duct joint 22, the impeller 20 is driven to rotate.

[0025] In a preferred embodiment, a propulsion screw 21 is rotatably installed within the heat exchange circulation pipe 13 located inside the heat exchange tank 12. A rubber strip is fixed to the edge of the propulsion screw 21 and seals against the inner wall of the heat exchange circulation pipe 13. A neodymium magnet block is annularly fixed at the upper end of the propulsion screw 21, and a neodymium magnet block is also annularly fixed to the inner wall of the impeller 20. When the impeller 20 rotates, the magnetic attraction between the neodymium magnets drives the propulsion screw 21 to rotate, and the heat transfer oil installed in the propulsion screw 21 begins to circulate. In this way, when the low-temperature heat transfer oil passes through the heat exchange tank 12, a large temperature difference is generated with the internal waste gas, which facilitates rapid heat absorption. Then, the heat transfer oil moves and carries the heat to the waste heat collection box 18. After the waste gas is cooled, it is discharged after passing through the waste gas solid particle capture chamber 14, the activated carbon adsorption chamber 15, and the exhaust emission chamber 16.

[0026] In a preferred embodiment, the inner wall of the heat exchange tank 12, the outer wall of the heat exchange circulation pipe 13, and the impeller 20 are provided with an anti-corrosion coating.

[0027] In a preferred embodiment, an electrical control box 17 is also included to control the electrical equipment of the device.

[0028] In a preferred embodiment, an electrostatic grid adsorber is provided in the waste gas solid particle capture chamber 14, and ventilation slots running vertically through the electrostatic grid adsorber are provided between the electrostatic grid adsorbers to allow waste gas to be discharged into the activated carbon adsorption chamber 15.

[0029] In a preferred embodiment, a heat-insulating coating is provided on the outside of the rubidium magnet disposed at the upper end of the push screw 21, and the working temperature of the hard body portion on the push screw 21 does not exceed 200 degrees Celsius.

[0030] In a preferred embodiment, a heat-insulating coating is provided on the surface of the impeller 20, and a heat-insulating coating is also provided on the exterior of the rubidium magnet disposed on the inner wall of the impeller 20. Furthermore, the temperature of the impeller 20 during operation does not exceed 200 degrees Celsius. It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation details. Other implementations derived by those skilled in the art based on the technical solution of this invention also fall within the scope of protection of this invention.

Claims

1. A high-efficiency waste heat recovery and conversion device, characterized in that: The system includes a hot exhaust pipe (11) with a wind deflector (10), a waste heat collection box (18), an exhaust chamber (16), a heat exchange tank (12), and an exhaust gas particulate capture chamber (14). The heat exchange tank (12) is fixedly mounted on the exhaust gas particulate capture chamber (14). The heat exchange tank (12), the exhaust gas particulate capture chamber (14), the activated carbon adsorption chamber (15), and the exhaust chamber (16) are connected. The exhaust gas enters the heat exchange tank (12) through the hot exhaust pipe (11) and passes through the exhaust gas particulate capture chamber (14) in sequence. The exhaust gas is discharged from the exhaust port behind the exhaust chamber (16) after the activated carbon adsorption chamber (15). It also includes a heat exchange circulation pipe (13), which is filled with heat transfer oil. The heat exchange circulation pipe (13) is partially exposed and passes through the waste heat collection box (18), the exhaust chamber (16), the activated carbon adsorption chamber (15), the waste gas solid particle capture chamber (14), and the heat exchange tank (12). The heat transfer oil flows counterclockwise and absorbs the heat of the waste gas in the heat exchange tank (12) and carries it to the waste heat collection box (18) for collection and storage. A tangential duct connector (22) is fixed on the heat exchange tank (12). The tangential duct connector (22) is connected to the hot exhaust pipe (11). The exhaust gas enters the heat exchange tank (12) along the tangential direction of the heat exchange tank (12). A bearing rotating base (19) is provided at the top of the heat exchange tank (12), and an impeller (20) is rotatably provided at the lower end of the bearing rotating base (19). The exhaust gas is blown into the heat exchange tank (12) through the tangential air duct joint (22) and drives the impeller (20) to rotate. A propulsion screw (21) is rotatably installed inside the heat exchange circulation pipe (13) located in the heat exchange tank (12). A rubber strip is fixed to the edge of the propulsion screw (21) and seals against the inner wall of the heat exchange circulation pipe (13). A neodymium magnet block is fixed in a ring at the upper end of the propulsion screw (21), and a neodymium magnet block is also fixed in a ring on the inner wall of the impeller (20). When the impeller (20) rotates, the magnetic attraction between the neodymium magnets drives the propulsion screw (21) to rotate, and the heat transfer oil set in the propulsion screw (21) begins to circulate. In this way, when the low-temperature heat transfer oil passes through the heat exchange tank (12), it generates a large temperature difference with the internal waste gas, which facilitates rapid heat absorption. Then, the heat transfer oil moves and carries the heat to the waste heat collection box (18). After the waste gas is cooled down, it is discharged through the waste gas solid particle capture chamber (14), activated carbon adsorption chamber (15), and exhaust emission chamber (16).

2. The high-efficiency waste heat recovery and conversion device according to claim 1, characterized in that: The inner wall of the heat exchange tank (12) and the outer wall of the heat exchange circulation pipe (13) and the impeller (20) are provided with an anti-corrosion coating.

3. The high-efficiency waste heat recovery and conversion device according to claim 2, characterized in that: It also includes an electrical control box (17) to control the electrical equipment of the device.

4. The high-efficiency waste heat recovery and conversion device according to claim 3, characterized in that: An electrostatic grid adsorber is provided in the waste gas solid particle capture chamber (14), and ventilation slots running vertically between the electrostatic grid adsorbers are provided to allow waste gas to be discharged into the activated carbon adsorption chamber (15).

5. The high-efficiency waste heat recovery and conversion device according to claim 4, characterized in that: A heat-insulating coating is provided on the outside of the rubidium magnet located at the upper end of the propulsion screw (21), and the working temperature of the hard body part on the propulsion screw (21) does not exceed 200 degrees Celsius.

6. The high-efficiency waste heat recovery and conversion device according to claim 5, characterized in that: A heat-insulating coating is provided on the surface of the impeller (20), and a heat-insulating coating is also provided on the outside of the rubidium magnet disposed on the inner wall of the impeller (20), and the temperature of the impeller (20) does not exceed 200 degrees Celsius during operation.

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