A waste heat recycling device for a heating device

Abstract

The utility model discloses a kind of waste heat recycling devices of heating equipment, including waste heat recycling device ontology, the waste heat recycling device ontology includes heating tower, L-shaped water inlet connector being arranged in the upper of heating tower, the connecting pipe being communicated and fixed at the right side bottom of heating tower for being connected with the water inlet of heating boiler, hose being arranged in the side of heating tower for being connected with the steam outlet of heating boiler.The utility model is provided with a series of structures, can utilize the high-temperature steam of heating boiler to preheat the water to be added in advance, realize waste heat recycling work, it is convenient to use hydraulic integration automatic driving spiral heat pipe rotation to agitate the water supplied when L-shaped water inlet connector supplies pressure water, to make it more evenly preheating application work, improve waste heat utilization preheating uniformity effect, and subsequent cleaning outside scale of spiral heat pipe disassembly and removal is facilitated, reduce subsequent maintenance difficulty, improve subsequent cleaning convenience.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, specifically to a waste heat reuse device for thermal heating equipment. Background Technology

[0002] In the industrial production sector, large amounts of fuel are burned to provide heat energy or convert it into various forms of energy needed for industry or daily life. Boilers are the most typical devices that utilize fuel combustion for heating. The hot water or steam produced in boilers can directly provide the heat energy needed for industrial production and people's lives, or it can be converted into mechanical energy through steam power devices, or the mechanical energy can be converted into electrical energy through generators. Currently, urban heating equipment, i.e., boilers, generally release steam directly after boiling water without considering the reuse of steam, resulting in a certain amount of energy waste in current urban heating equipment.

[0003] In response, a search revealed that CN219776419U discloses a waste heat recovery device for thermal heating equipment, including a heating boiler and a heating tower, as well as a connecting component for connecting the heating boiler and the heating tower. The heating tower has two downward-facing baffles that divide it into a heating chamber and two through chambers. Several spiral tubes are installed within the heating chamber, and several heating spheres are evenly distributed on the spiral tubes. The two ends of the spiral tubes pass through the two baffles. During the heating process of the heating boiler, steam is input into the heating tower. The steam enters the spiral tubes through the through chambers and heats the water through the steam in the spiral tubes, thereby reducing the energy consumed by the subsequent heating boiler in heating the water. The spiral tubes, arranged in a circular pattern, increase the water heating effect. Simultaneously, the staggered arrangement of the heating spheres on the spiral tubes effectively increases the contact area with the water and repeatedly disrupts the turbulence of the water within the heat exchange chamber, further improving the heating effect.

[0004] The aforementioned technology discloses a waste heat recovery device for thermal heating equipment. This device involves installing a heating tower in front of the boiler's inlet and a spiral tube connected to the boiler via a pipe inside the heating tower. During water addition, the high-temperature exhaust gas flows uniformly through the spiral tube to preheat the water, enabling more efficient heating and utilization of the waste heat. However, this method has the following shortcomings: 1. The fixed flow heating method lacks an integrated automatic water agitation mechanism during preheating, resulting in poor preheating uniformity; 2. The spiral tube's fixed placement inside the heating tower makes it difficult to remove and clean scale buildup on its exterior, leading to maintenance difficulties. Therefore, this application proposes a waste heat recovery device for thermal heating equipment to address these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a waste heat recovery device for thermal heating equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery device for thermal heating equipment, comprising a waste heat recovery device body, wherein the waste heat recovery device body includes a heating tower, an L-shaped water inlet pipe disposed above the heating tower, a connecting pipe fixed to the bottom right side of the heating tower for connection to the water inlet of a heating boiler, and a flexible hose disposed on one side of the heating tower for connection to the steam outlet of the heating boiler, and further includes:

[0007] A spiral heat pipe is installed inside the heating tower, and multiple arc-shaped stirring protrusions are fixedly connected to its outer surface.

[0008] A sealed, card-type one-way venting assembly is fixedly installed at the bottom of the heating tower and connected to one end of a hose. It is also fixedly sleeved on the outside of the bottom end of the spiral heat-conducting tube. The L-shaped water inlet pipe is used to connect to an external water supply pipe to supply external pressurized water into the heating tower. The sealed, card-type one-way venting assembly is used to achieve a convenient, separable, plug-and-play sealing connection with the spiral heat-conducting tube. It is also used to allow high-temperature steam discharged from the heating boiler through the hose to flow into the spiral heat-conducting tube. The high-temperature steam preheats the water added to the heating tower through the spiral heat-conducting tube, so that it can be supplied to the heating boiler through the connecting pipe for faster heating. By using the high-temperature steam of the heating boiler to preheat the water to be added, waste heat can be reused, reducing the waste of heat from the direct discharge of high-temperature steam.

[0009] The cover is movably fitted onto the outside of the top of the heating tower and secured with its threads;

[0010] Steam pipes are embedded and fixed on the top of the cover, and are sealed and rotated on the outside of the top of the spiral heat conduction pipe;

[0011] The hydraulic swirl drive assembly is installed inside the cover and fitted onto the outside of the spiral heat-conducting tube, and mates with the bottom end of the L-shaped water inlet pipe. The L-shaped water inlet pipe is embedded and fixed on the top of the cover. The hydraulic swirl drive assembly is used to automatically drive the spiral heat-conducting tube to rotate when pressurized water is supplied through the L-shaped water inlet pipe. The rotation of the spiral heat-conducting tube drives multiple arc-shaped stirring protrusions to rotate, thereby agitating the supplied water and making it more uniformly preheated for application.

[0012] Preferably, the sealed cassette one-way ventilation assembly includes a one-way valve, a rotating pipe, and a conical rubber plug. The one-way valve is fixedly installed at the bottom of the heating tower, with its bottom end connected and fixed to one end of the hose. The top end of the one-way valve is the outlet and extends into the heating tower. The rotating pipe is rotatably fitted around the outlet end of the one-way valve, with its top end configured as a cup-shaped structure. The conical rubber plug is fixedly fitted around the bottom end of the spiral heat-conducting pipe, with the outer side of the conical rubber plug tightly pressed against the inner side of the cup-shaped structure of the rotating pipe.

[0013] Preferably, the hydraulic vortex drive assembly includes a sealing box, a rotating shaft, four water turbine blades, a first bevel gear, and a second bevel gear. The sealing box is fixedly connected between the inner wall of the top and the inner wall of the right side of the cover. The top and right sides of the sealing box are both open. The sealing box is rotatably fitted on the outer side of the top of the spiral heat-conducting pipe. The rotating shaft is rotatably fitted on the inner wall of the left side of the cover. The sealing box is rotatably fitted on the rotating shaft. The second bevel gear is fixedly connected to the right end of the rotating shaft. The first bevel gear is fixedly fitted on the outer side of the top of the spiral heat-conducting pipe and meshes with the top of the second bevel gear. The four water turbine blades are fixedly connected to the outer side of the rotating shaft in a ring with equal spacing. The water turbine blades on the front side are vertically aligned with the bottom end of the L-shaped water inlet pipe.

[0014] Preferably, the top of the heating tower is provided with threaded grooves on all four sides, and a knob-type bolt is screwed into the threaded groove, with the cover threaded onto the four knob-type bolts.

[0015] Preferably, a limiting ring is fixedly fitted inside the cover, and an elastic sealing ring that is pressed tightly against the top of the heating tower is bonded to the bottom of the limiting ring.

[0016] Preferably, the bottom of the heating tower is fixedly connected with four legs in a ring at equal intervals, and a drain valve is fixedly connected to the left side of the bottom of the heating tower.

[0017] Preferably, two first sealing bearings are fixedly sleeved inside the rotating tube, and the inner ring of the first sealing bearing is fixedly sleeved to the outer side of the outlet end of the one-way valve.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By using a heating tower, L-shaped water inlet pipe, spiral heat conduction pipe, hose, connecting pipe and sealing cassette one-way ventilation component, the high-temperature steam of the heating boiler can be used to preheat the water to be added, realize the reuse of waste heat and reduce the waste of heat from the direct discharge of high-temperature steam.

[0020] 2. By combining the hydraulic vortex drive assembly, spiral heat conduction tube, L-shaped water inlet pipe and sealed card-type one-way ventilation assembly, the spiral heat conduction tube can be automatically driven by hydraulic system to agitate the water when pressurized water is supplied through the L-shaped water inlet pipe, so as to preheat the water more evenly and improve the uniformity of waste heat utilization preheating.

[0021] 3. The combination of knob-type bolts, caps, spiral heat conduction tubes, heating towers, threaded grooves, limit rings, and sealing clip-type one-way ventilation components facilitates the subsequent disassembly, removal, and cleaning of the spiral heat conduction tubes. This provides convenience for personnel to clean scale buildup on the outside of the spiral heat conduction tubes, reduces the difficulty of subsequent maintenance, and improves the ease of subsequent cleaning.

[0022] This utility model, through a series of structures, can preheat the water to be added using the high-temperature steam of the heating boiler, realizing the reuse of waste heat. When pressurized water is supplied through the L-shaped water inlet pipe, the spiral heat-conducting tube is automatically driven by hydraulic system to agitate the supplied water, so as to make the preheating application more uniform and improve the uniformity of waste heat utilization preheating. It also facilitates the subsequent disassembly and removal of the spiral heat-conducting tube to clean the scale on the outside, reducing the difficulty of subsequent maintenance and improving the convenience of subsequent cleaning. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a waste heat recovery device for thermal heating equipment proposed in this utility model;

[0024] Figure 2 This is a right-side structural schematic diagram of a waste heat recovery device for thermal heating equipment proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the main cross-sectional structure of a waste heat recovery device for thermal heating equipment proposed in this utility model.

[0026] Figure 4 For the present utility model Figure 3 A magnified structural diagram of part A in the diagram;

[0027] Figure 5 For the present utility model Figure 3 A magnified structural diagram of part B in the diagram.

[0028] In the diagram: 1. Heating tower; 101. Connecting pipe; 102. Flexible hose; 103. L-shaped water inlet pipe; 104. Drain valve; 2. Check valve; 201. Rotary pipe; 3. Spiral heat conduction pipe; 301. Conical rubber plug; 302. Arc-shaped stirring protrusion; 4. Cover; 401. Steam exhaust pipe; 402. Knob bolt; 403. Limiting ring; 5. Sealing box; 501. First bevel gear; 502. Second bevel gear; 503. Rotating shaft; 504. Water turbine blade. Detailed Implementation

[0029] 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.

[0030] like Figures 1 to 5 As shown, this embodiment proposes a waste heat recovery device for thermal heating equipment, including a waste heat recovery device body. The waste heat recovery device body includes a heating tower 1, an L-shaped water inlet pipe 103 disposed above the heating tower 1, a connecting pipe 101 fixed to the bottom right side of the heating tower 1 for connection to the water inlet of the heating boiler, and a flexible hose 102 disposed on one side of the heating tower 1 for connection to the steam outlet of the heating boiler. It also includes:

[0031] A spiral heat pipe 3 is installed inside the heating tower 1, and multiple arc-shaped stirring protrusions 302 are fixedly connected to its outer surface;

[0032] A sealed, card-type one-way venting assembly is fixedly installed at the bottom of the heating tower 1 and connected to one end of the hose 102. It is also fixedly sleeved on the outside of the bottom end of the spiral heat-conducting pipe 3. The L-shaped water inlet pipe 103 is used to connect to the external water supply pipe to supply external pressurized water into the heating tower 1. The sealed, card-type one-way venting assembly is used to achieve a detachable and convenient plug-in sealed connection with the spiral heat-conducting pipe 3. It is also used to allow the high-temperature steam discharged from the heating boiler through the hose 102 to flow into the spiral heat-conducting pipe 3. The high-temperature steam is used to preheat the water added to the heating tower 1 through the spiral heat-conducting pipe 3 so that it can be supplied to the heating boiler through the connecting pipe 101 for faster heating. By using the high-temperature steam of the heating boiler to preheat the water to be added, waste heat can be reused, reducing the waste of heat from the direct discharge of high-temperature steam.

[0033] Cover 4 is movably fitted onto the outer side of the top of heating tower 1 and fixed thereto by threads;

[0034] Steam pipe 401 is embedded and fixed on the top of cover 4, and is sealed and rotated on the outside of the top of spiral heat conduction pipe 3.

[0035] The hydraulic vortex drive assembly is installed inside the cover 4 and fitted onto the outside of the spiral heat-conducting tube 3, and mates with the bottom end of the L-shaped water inlet pipe 103. The L-shaped water inlet pipe 103 is embedded and fixed on the top of the cover 4. The hydraulic vortex drive assembly is used to automatically drive the spiral heat-conducting tube 3 to rotate when pressurized water is supplied through the L-shaped water inlet pipe 103. The rotation of the spiral heat-conducting tube 3 drives multiple arc-shaped stirring protrusions 302 to rotate, thereby agitating the supplied water and making it more uniformly preheated for application.

[0036] In this embodiment, threaded grooves are provided on the top of all four sides of the heating tower 1, and knob bolts 402 are screwed into the threaded grooves. The cover 4 is threaded onto the four knob bolts 402. Threaded holes are provided on all four sides of the cover 4, and the threaded holes are threaded to the corresponding knob bolts 402. A limiting ring 403 is fixedly fitted inside the cover 4. An elastic sealing ring is bonded to the bottom of the limiting ring 403 and is pressed tightly against the top of the heating tower 1, thus achieving a sealing effect between the bottom of the inner side of the cover 4 and the top of the heating tower 1. Four support legs are fixedly connected in a ring at equal intervals at the bottom of the heating tower 1. A drain valve 104 is fixedly connected to the left side of the bottom of the heating tower 1.

[0037] Furthermore, such as Figure 3 and 5 As shown, the sealed cassette one-way ventilation assembly includes a one-way valve 2, a rotating pipe 201, and a conical rubber plug 301. The one-way valve 2 is fixedly installed at the bottom of the heating tower 1. The bottom end of the one-way valve 2 is connected and fixed to one end of the hose 102. The top end of the one-way valve 2 is the outlet and extends into the heating tower 1. The rotating pipe 201 is sealed and rotated on the outside of the outlet end of the one-way valve 2. The top end of the rotating pipe 201 is set as a cup-shaped structure. The conical rubber plug 301 is fixedly sleeved on the outside of the bottom end of the spiral heat-conducting pipe 3. The outside of the conical rubber plug 301 is squeezed and contacted with the inside of the cup-shaped structure of the rotating pipe 201.

[0038] In this embodiment, two first sealing bearings are fixedly sleeved inside the rotating pipe 201. The inner ring of the first sealing bearing is fixedly sleeved with the outer side of the outlet end of the one-way valve 2, which achieves the effect of sealing and rotating the rotating pipe 201.

[0039] In this embodiment, the one-way valve 2, the rotating tube 201, and the conical rubber plug 301 work together. The conical rubber plug 301 is pressed tightly against the inner side of the bowl-shaped structure at the top of the rotating tube 201, achieving a convenient and sealed connection between the bottom end of the spiral heat pipe 3 and the rotating tube 201. This sealing connection allows the spiral heat pipe 3 to move upwards directly when the cover 4 is subsequently removed and moved upwards, causing the conical rubber plug 301 to separate from the rotating tube 201. This facilitates the subsequent disassembly and removal of the spiral heat pipe 3, providing a convenient way for personnel to handle subsequent maintenance. The spiral heat pipe 3 facilitates the cleaning of scale buildup on its outer side. When the heating boiler discharges high-temperature steam through the hose 102, the steam flows unidirectionally through the one-way valve 2 and the rotating pipe 201 into the spiral heat pipe 3. The high-temperature steam preheats the water added to the heating tower 1 through the spiral heat pipe 3, so that it can be supplied to the heating boiler through the connecting pipe 101 for faster heating. By using the high-temperature steam of the heating boiler to preheat the water to be added, waste heat can be reused, reducing the waste of heat from the direct discharge of high-temperature steam.

[0040] Furthermore, such as Figure 3 and 4 As shown, the hydraulic vortex drive assembly includes a sealing box 5, a rotating shaft 503, four water turbine blades 504, a first bevel gear 501, and a second bevel gear 502. The sealing box 5 is fixedly connected between the inner wall of the top and the inner wall of the right side of the cover 4. The top and right sides of the sealing box 5 are both open. The sealing box 5 is sealed and rotatedly fitted on the outer side of the top of the spiral heat-conducting pipe 3. The rotating shaft 503 is sealed and rotatedly embedded on the inner wall of the left side of the cover 4. The sealing box 5 is sealed and rotatedly fitted on the rotating shaft 503. The second bevel gear 502 is fixedly connected to the right end of the rotating shaft 503. The first bevel gear 501 is fixedly fitted on the outer side of the top of the spiral heat-conducting pipe 3 and meshes with the top of the second bevel gear 502. The four water turbine blades 504 are fixedly connected in a ring at equal intervals to the outer side of the rotating shaft 503. The water turbine blades 504 located on the front side are vertically aligned with the bottom end of the L-shaped water inlet pipe 103.

[0041] In this embodiment, the bottom of the sealing box 5 has a first circular hole, and a second sealing bearing is fixedly fitted inside the first circular hole. A third sealing bearing is fixedly fitted inside the steam exhaust pipe 401. The inner rings of the third and second sealing bearings are both fixedly fitted to the outer side of the top end of the spiral heat conduction pipe 3, which achieves the effect of sealing and rotating the spiral heat conduction pipe 3. The left inner wall of the sealing box 5 has a second circular hole, and the left inner wall of the cover 4 has a third circular hole. Two fourth sealing bearings are fixedly fitted inside the third circular hole, and a fifth sealing bearing is fixedly fitted inside the second circular hole. The inner rings of the fifth and fourth sealing bearings are both fixedly fitted to the outer side of the rotating shaft 503, which achieves the effect of sealing and rotating the rotating shaft 503.

[0042] In this embodiment, the sealing box 5, rotating shaft 503, four water impellers 504, first bevel gear 501, and second bevel gear 502 work together. When pressurized water is supplied through the L-shaped water inlet pipe 103, the pressurized water impacts the front water impeller 504 downwards, causing it to rotate downwards and driving the rotating shaft 503 to rotate. The rotating shaft 503 drives the other three water impellers 504 to rotate sequentially to the front to continue being impacted and driven. The rotation of the rotating shaft 503 drives the second bevel gear 502, which in turn drives the spiral heat-conducting pipe 3 to rotate through the meshing first bevel gear 501. This achieves the effect of automatically driving the spiral heat-conducting pipe 3 to rotate using hydraulic power when pressurized water is supplied through the L-shaped water inlet pipe 103. The rotation of the spiral heat-conducting pipe 3 drives multiple arc-shaped stirring protrusions 302 to rotate, thereby agitating the supplied water and making it more uniformly preheated for application, improving the uniformity of waste heat utilization preheating.

[0043] It should be noted that the spiral heat pipe 3 is preferably made of copper, while the cap 4, rotating tube 201, sealing box 5, rotating shaft 503 and water wheel blade 504 are preferably made of stainless steel. The advantages of stainless steel, such as high hardness, high wear resistance, corrosion resistance and good maintenance-free effect, are utilized to ensure the stability of long-term connection and application.

[0044] The usage method of this embodiment is as follows: When using the waste heat recovery device of the thermal heating equipment, connect the L-shaped water inlet pipe 103 to the external water supply pipe, connect the end of the hose 102 to the steam outlet of the heating boiler, and connect the connecting pipe 101 to the water inlet of the heating boiler. External pressurized water is supplied into the heating tower 1 through the L-shaped water inlet pipe 103. When the heating boiler discharges high-temperature steam through the hose 102, it flows unidirectionally through the one-way valve 2 and the rotating pipe 201 into the spiral heat conduction pipe 3, and then is discharged through the steam exhaust pipe 401 above. The high-temperature steam is used to preheat the water added to the heating tower 1 through the spiral heat conduction pipe 3, so that the water is supplied into the heating boiler through the connecting pipe 101 for faster heating. By using the high-temperature steam of the heating boiler to preheat the water to be added, the waste heat recovery work is realized, reducing the waste phenomenon of direct discharge of heat from the high-temperature steam.

[0045] When pressurized water is supplied through the L-shaped water inlet pipe 103, the pressurized water impacts the front water impeller 504 downwards, causing it to rotate downwards and drive the rotating shaft 503 to rotate. The rotating shaft 503 drives the other three water impellers 504 to rotate sequentially to the front to continue being impacted and driven. When the rotating shaft 503 rotates, it drives the second bevel gear 502. The second bevel gear 502 drives the spiral heat conduction tube 3 to rotate through the first bevel gear 501 meshing with it. The spiral heat conduction tube 3 drives the conical rubber block 301 to rotate. The conical rubber block 301 friction drives the rotating tube 201 to rotate. This achieves the effect of automatically driving the spiral heat conduction tube 3 to rotate by water power when pressurized water is supplied through the L-shaped water inlet pipe 103. The rotation of the spiral heat conduction tube 3 drives multiple arc-shaped stirring protrusions 302 to rotate, thereby agitating the supplied water to make it more uniformly preheated for application and improving the uniformity of waste heat utilization preheating.

[0046] When it is necessary to remove the spiral heat pipe 3 to clean the scale buildup on its exterior, stop the water supply and open the drain valve 104 to drain the water remaining in the heating tower 1. Then, rotate the four knob bolts 402 in reverse to separate them from their corresponding threaded grooves, releasing the lock on the cover 4. The cover 4 can then be moved upwards, allowing it to move the spiral heat pipe 3 upwards through the sealing box 5. The spiral heat pipe 3 will then separate the conical rubber plug 301 from the rotating tube 201, thus removing the spiral heat pipe 3. The outer side can then be cleaned. After cleaning... The cover 4 is lowered and placed on the outer side of the top of the heating tower 1. The cover 4 drives the spiral heat conduction tube 3 to move down through the sealing box 5. The spiral heat conduction tube 3 drives the conical rubber block 301 to squeeze and insert into the rotating tube 201 to achieve sealing and connection. Then, the knob bolt 402 can be rotated in the forward direction to lock the cover 4. This makes it easy to disassemble, remove and clean the spiral heat conduction tube 3, which facilitates the subsequent cleaning of scale on the outside of the spiral heat conduction tube 3, reduces the difficulty of subsequent maintenance and improves the convenience of subsequent cleaning.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste heat recovery device for thermal heating equipment, comprising a waste heat recovery device body, wherein the waste heat recovery device body includes a heating tower (1), an L-shaped water inlet pipe (103) disposed above the heating tower (1), a connecting pipe (101) fixed to the bottom right side of the heating tower (1) for connection to the water inlet of a heating boiler, and a flexible hose (102) disposed on one side of the heating tower (1) for connection to the steam outlet of the heating boiler, characterized in that: Also includes: A spiral heat pipe (3) is installed inside the heating tower (1), and multiple arc-shaped stirring protrusions (302) are fixedly connected to its outer surface; The sealed card-type one-way ventilation assembly is fixedly installed at the bottom of the heating tower (1) and connected to one end of the hose (102) and fixedly sleeved on the outside of the bottom end of the spiral heat conduction tube (3); The cover (4) is movably fitted onto the outside of the top of the heating tower (1) and fixed with its threads; Steam pipe (401) is embedded and fixed on the top of the cover (4) and sealed and rotated on the outside of the top of the spiral heat pipe (3); The hydraulic swirl drive assembly is installed inside the cover (4) and fitted on the outside of the spiral heat pipe (3), and is matched with the bottom end of the L-shaped water inlet pipe (103). The L-shaped water inlet pipe (103) is embedded and fixed on the top of the cover (4).

2. The waste heat recovery device for thermal heating equipment according to claim 1, characterized in that: The sealed card-type one-way ventilation assembly includes a one-way valve (2), a rotating pipe (201), and a conical rubber plug (301). The one-way valve (2) is fixedly installed at the bottom of the heating tower (1). The bottom end of the one-way valve (2) is connected and fixed to one end of the hose (102). The top end of the one-way valve (2) is the outlet and extends into the heating tower (1). The rotating pipe (201) is sealed and rotated on the outside of the outlet end of the one-way valve (2). The top end of the rotating pipe (201) is set as a cup-shaped structure. The conical rubber plug (301) is fixedly fitted on the outside of the bottom end of the spiral heat-conducting pipe (3). The outside of the conical rubber plug (301) is squeezed and contacted with the inside of the cup-shaped structure of the rotating pipe (201).

3. The waste heat recovery device for thermal heating equipment according to claim 1, characterized in that: The hydraulic vortex drive assembly includes a sealing box (5), a rotating shaft (503), four water turbine blades (504), a first bevel gear (501), and a second bevel gear (502). The sealing box (5) is fixedly connected between the top inner wall and the right inner wall of the cover (4). The top and right sides of the sealing box (5) are both open. The sealing box (5) is rotatably and sealingly fitted on the outside of the top end of the spiral heat-conducting pipe (3). The rotating shaft (503) is rotatably and sealingly embedded in the left inner wall of the cover (4). The sealing box (5) is rotated and sealed on the rotating shaft (503). The second bevel gear (502) is fixedly connected to the right end of the rotating shaft (503). The first bevel gear (501) is fixedly sleeved on the outside of the top of the spiral heat pipe (3) and meshes with the top of the second bevel gear (502). The four water turbine blades (504) are fixedly connected to the outside of the rotating shaft (503) in a ring with equal spacing. The water turbine blade (504) located on the front side is vertically aligned with the bottom end of the L-shaped water inlet pipe (103).

4. The waste heat recovery device for thermal heating equipment according to claim 1, characterized in that: The heating tower (1) has threaded grooves on all four sides and tops, with knob bolts (402) threaded into the grooves. The cover (4) is threaded onto the four knob bolts (402).

5. A waste heat recovery device for thermal heating equipment according to claim 1, characterized in that: A limiting ring (403) is fixedly fitted inside the cover (4), and an elastic sealing ring that is pressed tightly against the top of the heating tower (1) is bonded to the bottom of the limiting ring (403).

6. A waste heat recovery device for thermal heating equipment according to claim 1, characterized in that: The bottom of the heating tower (1) is fixedly connected with four legs in a ring at equal intervals, and a drain valve (104) is fixedly connected to the left side of the bottom of the heating tower (1).

7. A waste heat recovery device for thermal heating equipment according to claim 2, characterized in that: Two first sealing bearings are fixedly fitted inside the rotating pipe (201), and the inner ring of the first sealing bearing is fixedly fitted to the outer side of the outlet end of the one-way valve (2).

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