A waste heat recovery and solar energy combined heat supplement device
The connection mechanism design facilitates the installation and disassembly of metal pipes, solving the problems of metal pipe corrosion and fatigue, and enabling efficient operation and convenient maintenance of the waste heat recovery and solar energy combined heating device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEITOU (BEIJING) ENERGY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-29
AI Technical Summary
In existing waste heat recovery and solar energy combined heating devices, metal pipes suffer from corrosion and fatigue cracks due to material performance degradation, thermal stress, and media corrosion, and replacement is inconvenient.
The design incorporates a connection mechanism, including a second branch pipe, a connecting sleeve, and a sealing ring. The threaded connection allows for convenient installation and disassembly of the metal pipe and the heat replenishment mechanism. Combined with a vacuum tube collector and a hot water storage tank, it enables flexible supply of heat energy.
It improves energy efficiency, reduces reliance on traditional energy sources, reduces environmental pollution, enables convenient replacement of metal pipes, and extends the service life of the equipment.
Smart Images

Figure CN224302185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat recovery device technology, specifically to a combined waste heat recovery and solar energy heat recovery device. Background Technology
[0002] Waste heat recovery and solar energy combined heating system is a comprehensive system that recovers and utilizes waste heat generated during industrial or domestic processes, while simultaneously supplementing heating with solar energy, a renewable energy source. This system aims to improve energy efficiency, reduce dependence on traditional energy sources, decrease environmental pollution, and achieve energy conservation and emission reduction goals. The system connects to other equipment via metal pipes for heating.
[0003] In practical applications, metal pipes under prolonged heating conditions will experience a series of problems due to factors such as material performance degradation, thermal stress, and media corrosion. The metal pipe surface reacts with oxygen to form an oxide layer, the thickness of which increases over time, leading to thinning of the wall. Sulfur dioxide in sulfur-containing flue gas reacts with water vapor to form sulfuric acid, accelerating pipe corrosion. When the pipe is thermally expanded and obstructed, thermal stress is generated, leading to fatigue cracks. Currently, the metal pipes in the heating devices are usually welded, and cutting is required when disassembling the metal pipes, making replacement inconvenient. Improvements should be made to address this issue.
[0004] Therefore, a combined waste heat recovery and solar energy supplementary heating device is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a waste heat recovery and solar energy combined heating device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A waste heat recovery and solar energy combined heating device includes a base, a control box, and a flue gas heat exchanger. The control box and the flue gas heat exchanger are both fixedly mounted on the top of the base. A solar energy collector is provided on the top of the base. The surfaces of the flue gas heat exchanger and the solar energy collector are provided with a heating mechanism for conducting the heat stored in the flue gas heat exchanger and the solar energy collector to other equipment. A metal pipe is provided on one side of the heating mechanism, and multiple metal pipes are provided. The surfaces of the heating mechanism and the metal pipes are provided with a connecting mechanism for connecting the heating mechanism and the metal pipes.
[0008] Furthermore, the solar thermal collector assembly includes a vacuum tube collector and a hot water storage tank. The vacuum tube collector and the hot water storage tank are fixedly mounted on the top of the base, and the hot water storage tank is located on one side of the flue gas heat exchanger. The vacuum tube collector and the hot water storage tank are equipped with tube bodies.
[0009] Furthermore, the heat replenishment mechanism includes a support plate, a support plate is fixedly provided on one side surface of the flue gas heat exchanger, an extraction pump is fixedly provided on the top of the support plate, a first branch pipe and a rigid pipe are fixedly connected to the extraction pump respectively, a first connecting pipe is fixedly connected to the surface of the flue gas heat exchanger, a second connecting pipe is fixedly connected to the surface of the hot water storage tank, and a first control valve is provided on both the first connecting pipe and the second connecting pipe.
[0010] Furthermore, flanges are provided at both ends of the first branch pipe, and the two sets of flanges correspond to the first connecting pipe and the second connecting pipe respectively. The other two ends of the first branch pipe are respectively attached to the opposite ends of the first connecting pipe and the second connecting pipe.
[0011] Furthermore, the connecting mechanism includes a second branch pipe, the other end of the rigid pipe is fixedly provided with the second branch pipe, the second branch pipe is provided with a second control valve, the surface of the second branch pipe is threadedly connected with a connecting sleeve, and the other end of the connecting sleeve is threadedly connected to one end of the metal pipe.
[0012] Furthermore, the second control valve and the connecting sleeve are provided in multiple ways, and the surfaces of the multiple metal tubes are respectively fixedly fitted with sealing rings, and the multiple sealing rings correspond to the multiple connecting sleeves respectively.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model, through a heat replenishment mechanism, can simultaneously supply heat energy from the flue gas heat exchanger and the solar collector to other equipment, or individually supply heat energy from the flue gas heat exchanger and the solar collector to other equipment, thereby controlling the amount of heat energy supplied. This device improves energy utilization efficiency. Heat energy is conducted to other equipment through metal pipes, and the connection mechanism enables the installation and disassembly of the metal pipes and the heat replenishment mechanism. After a certain period of use, the metal pipes will be damaged by oxidation, corrosion, and thermal stress. The connection mechanism facilitates the disassembly and assembly of the metal pipes, thus making it easy to replace them. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the top view of this utility model;
[0017] Figure 3 This is a schematic diagram of an enlarged view of part A of this utility model;
[0018] Figure 4 This is a partial schematic diagram of the present invention;
[0019] Reference numerals: 1. Base; 2. Control box; 3. Flue gas heat exchanger; 4. Solar collector assembly; 401. Vacuum tube collector; 402. Hot water storage tank; 403. Pipe body; 5. Heating mechanism; 501. Support plate; 502. Extraction pump; 503. First branch pipe; 504. First connecting pipe; 505. Second connecting pipe; 506. First control valve; 507. Flange; 508. Rigid pipe; 6. Metal pipe; 7. Connecting mechanism; 701. Second branch pipe; 702. Second control valve; 703. Connecting sleeve; 704. Sealing ring. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] like Figures 1 to 4 As shown, a waste heat recovery and solar energy combined heating device includes a base 1, a control box 2, and a flue gas heat exchanger 3. The control box 2 and the flue gas heat exchanger 3 are both fixedly mounted on the top of the base 1. A solar thermal collector 4 is provided on the top of the base 1. Figure 1 , Figure 2As shown, specifically, the solar thermal collector 4 includes a vacuum tube collector 401 and a hot water storage tank 402. The vacuum tube collector 401 and the hot water storage tank 402 are fixedly mounted on the top of the base 1, and the hot water storage tank 402 is located on one side of the flue gas heat exchanger 3. The vacuum tube collector 401 and the hot water storage tank 402 are provided with tube bodies 403.
[0025] More specifically, the vacuum tube collector 401 absorbs solar radiation energy, raising the temperature of the working fluid inside. The high-temperature working fluid then enters the hot water storage tank 402 to store heat, thus completing the conversion and storage of thermal energy.
[0026] The surfaces of the flue gas heat exchanger 3 and the solar collector 4 are provided with a heat supplement mechanism 5 for transferring the stored heat from the flue gas heat exchanger 3 and the solar collector 4 to other equipment. A metal pipe 6 is provided on one side of the heat supplement mechanism 5, and multiple metal pipes 6 are provided, such as... Figure 3 , Figure 4 As shown, specifically, the heat replenishment mechanism 5 includes a support plate 501. The support plate 501 is fixedly provided on one side surface of the flue gas heat exchanger 3. A pump 502 is fixedly provided on the top of the support plate 501. A first branch pipe 503 and a rigid pipe 508 are fixedly connected to the pump 502. A first connecting pipe 504 is fixedly connected to the surface of the flue gas heat exchanger 3. A second connecting pipe 505 is fixedly connected to the surface of the hot water storage tank 402. A first control valve 506 is provided on both the first connecting pipe 504 and the second connecting pipe 505. Flanges 507 are provided at both ends of the first branch pipe 503. The two sets of flanges 507 correspond to the first connecting pipe 504 and the second connecting pipe 505 respectively. The other ends of the first branch pipe 503 are respectively attached to the opposite ends of the first connecting pipe 504 and the second connecting pipe 505.
[0027] More specifically, the two sets of first control valves 506 can control the delivery of hot water inside the hot water storage tank 402 and the flue gas heat exchanger 3 respectively, so that the hot water storage tank 402 and the flue gas heat exchanger 3 can supply hot water simultaneously or individually. The hot water is delivered through the rigid pipe 508, and the connection and disconnection between the two ends of the first branch pipe 503 and the first connecting pipe 504 and the second connecting pipe 505 can be realized through the two sets of flanges 507, thereby realizing the connection and disconnection between the flue gas heat exchanger 3 and the hot water storage tank 402.
[0028] The surface of the heating mechanism 5 and the surface of the metal pipe 6 are provided with a connecting mechanism 7 for connecting the heating mechanism 5 and the metal pipe 6, such as... Figure 2 , Figure 4As shown, specifically, the connecting mechanism 7 includes a second branch pipe 701. The other end of the rigid pipe 508 is fixedly provided with the second branch pipe 701. A second control valve 702 is provided on the second branch pipe 701. A connecting sleeve 703 is threadedly connected to the surface of the second branch pipe 701, and the other end of the connecting sleeve 703 is threadedly connected to one end of the metal pipe 6. Multiple second control valves 702 and multiple connecting sleeves 703 are provided. Sealing rings 704 are fixedly sleeved on the surface of multiple metal pipes 6 respectively, and multiple sealing rings 704 correspond to multiple connecting sleeves 703 respectively.
[0029] More specifically, the metal pipe 6 can be connected by the connecting sleeve 703, thereby connecting the metal pipe 6 to the second branch pipe 701. Hot water inside the rigid pipe 508 is transported to the inside of the second branch pipe 701 and then to other equipment via the metal pipe 6. The gap between the connecting sleeve 703 and the metal pipe 6 can be sealed by the sealing ring 704. Multiple second control valves 702 can control the flow rate and on / off status of the hot water inside multiple metal pipes 6, thereby controlling the heat supply to other equipment.
[0030] In summary: When high-temperature flue gas passes through the flue gas heat exchanger 3, it transfers heat to the heat medium inside the flue gas heat exchanger 3, thereby recovering waste heat. The solar collector 4 is responsible for collecting solar energy and converting it into heat energy. The heat energy raises the temperature of the water inside the solar collector 4. Through the supplementary heating mechanism 5, the heat energy from the flue gas heat exchanger 3 and the solar collector 4 can be supplied to other equipment simultaneously, or individually to other equipment, thereby controlling the amount of heat energy supplied. This device improves energy utilization efficiency, reduces dependence on traditional energy sources, reduces environmental pollution, and achieves energy conservation and emission reduction. The heat energy is conducted to other equipment through the metal pipe 6. The connection mechanism 7 enables the installation and disassembly of the metal pipe 6 and the supplementary heating mechanism 5. After a certain period of use, the metal pipe 6 will be damaged by oxidation, corrosion, and thermal stress. The connection mechanism 7 facilitates the disassembly and assembly of the metal pipe 6, making it easy to replace the metal pipe 6.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A waste heat recovery and solar energy combined heating device, characterized in that, The device includes a base (1), a control box (2), and a flue gas heat exchanger (3). The control box (2) and the flue gas heat exchanger (3) are fixedly installed on the top of the base (1). A solar collector (4) is provided on the top of the base (1). The surface of the flue gas heat exchanger (3) and the surface of the solar collector (4) are provided with a heat supplement mechanism (5) for conducting the heat stored in the flue gas heat exchanger (3) and the solar collector (4) to other equipment. A metal pipe (6) is provided on one side of the heat supplement mechanism (5), and multiple metal pipes (6) are provided. A connecting mechanism (7) for connecting the heat supplement mechanism (5) and the metal pipe (6) is provided on the surface of the heat supplement mechanism (5) and the surface of the metal pipe (6).
2. The waste heat recovery and solar energy combined heating device according to claim 1, characterized in that, The solar thermal collector (4) includes a vacuum tube collector (401) and a hot water storage tank (402). The vacuum tube collector (401) and the hot water storage tank (402) are fixedly installed on the top of the base (1), and the hot water storage tank (402) is located on one side of the flue gas heat exchanger (3). The vacuum tube collector (401) and the hot water storage tank (402) are provided with tube bodies (403).
3. The waste heat recovery and solar energy combined heating device according to claim 2, characterized in that, The heating mechanism (5) includes a support plate (501). The support plate (501) is fixedly provided on one side surface of the flue gas heat exchanger (3). The top of the support plate (501) is fixedly provided with a pump (502). The pump (502) is fixedly connected with a first branch pipe (503) and a rigid pipe (508). The surface of the flue gas heat exchanger (3) is fixedly connected with a first connecting pipe (504). The surface of the hot water storage tank (402) is fixedly connected with a second connecting pipe (505). The first connecting pipe (504) and the second connecting pipe (505) are both provided with a first control valve (506).
4. The waste heat recovery and solar energy combined heating device according to claim 3, characterized in that, The other two ends of the first branch pipe (503) are provided with flanges (507), and the two sets of flanges (507) correspond to the first connecting pipe (504) and the second connecting pipe (505) respectively. The other two ends of the first branch pipe (503) are respectively attached to the opposite ends of the first connecting pipe (504) and the second connecting pipe (505).
5. The waste heat recovery and solar energy combined heating device according to claim 3, characterized in that, The connecting mechanism (7) includes a second branch pipe (701). The other end of the rigid pipe (508) is fixedly provided with the second branch pipe (701). The second branch pipe (701) is provided with a second control valve (702). The surface of the second branch pipe (701) is threadedly connected with a connecting sleeve (703), and the other end of the connecting sleeve (703) is threadedly connected to one end of the metal pipe (6).
6. The waste heat recovery and solar energy combined heating device according to claim 5, characterized in that, The second control valve (702) and the connecting sleeve (703) are provided with multiple sealing rings (704) respectively fixedly sleeved on the surface of the multiple metal tubes (6), and the multiple sealing rings (704) correspond to the multiple connecting sleeves (703) respectively.