A waste heat recovery and utilization device for combined heat and power

Abstract

The utility model discloses a kind of waste heat recovery and utilization equipment for cogeneration, and its technical scheme main points are including first pipe group;Second pipe group;Heat exchange pipe group, the heat exchange pipe group includes heat exchange gas pipe and heat exchange liquid pipe, heat exchange liquid pipe is sleeved in heat exchange gas pipe outside, the both ends of heat exchange liquid pipe are respectively fixedly connected on first liquid pipe and second liquid pipe, the both ends of heat exchange gas pipe are respectively fixedly connected on first air pipe and second air pipe;Shaft, shaft is arranged in heat exchange gas pipe and with heat exchange gas pipe coaxial, the both ends of shaft are respectively rotationally connected on first end plate and second end plate;And disturbance component;Through the setting of disturbance component, high-temperature flue gas in heat exchange gas pipe can be pushed to flow between heat exchange gas pipe axis and side wall, so that the smoke of everywhere can be fully transferred to liquid heat.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat recovery, and more specifically, it relates to a waste heat recovery and utilization device for cogeneration. Background Technology

[0002] Combined heat and power (CHP) is a highly efficient, energy-saving, and environmentally friendly energy utilization method. The high-temperature flue gas generated during CHP operation carries a significant amount of heat. Recovering this flue gas heat as waste heat can improve energy efficiency. Current technologies mostly involve transferring the waste heat from the flue gas to water for storage, achieving graded recovery and utilization of the waste heat, ensuring its full use, avoiding waste, and improving waste heat recovery efficiency.

[0003] In existing technologies, high-temperature smoke is mostly introduced into pipes, which extend into the liquid medium. The flow of smoke within the pipes in the liquid medium achieves the heating effect on the liquid. However, in this process, the smoke located at the center of the smoke pipe cannot fully transfer heat to the outside, resulting in incomplete waste heat recovery. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waste heat recovery and utilization device for cogeneration. By setting up a disturbance component, it can promote the flow of high-temperature flue gas in the heat exchange pipe between the axis of the heat exchange pipe and the side wall, so that the flue gas in all places can fully transfer heat to the liquid.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste heat recovery and utilization device for cogeneration, comprising a first pipe group, the first pipe group comprising a first vent pipe and a first liquid pipe, the first liquid pipe being sleeved outside the first vent pipe, the first vent pipe and the first liquid pipe being coaxially arranged, and a first end plate being fixedly connected to one end of the first vent pipe and the first liquid pipe to close one end of the first vent pipe and the first liquid pipe;

[0006] The second tube assembly includes a second vent tube and a second liquid tube. The second liquid tube is sleeved outside the second vent tube. The second vent tube and the second liquid tube are coaxially arranged. A second end plate is fixedly connected to the end of the second vent tube and the second liquid tube away from the first tube assembly to close the end of the second vent tube and the second liquid tube away from the first tube assembly. The first tube assembly and the second tube assembly are coaxially arranged.

[0007] A heat exchange tube assembly, comprising a heat exchange gas tube and a heat exchange liquid tube, wherein the heat exchange liquid tube is sleeved outside the heat exchange gas tube, and both ends of the heat exchange liquid tube are fixedly connected to a first liquid passage pipe and a second liquid passage pipe, respectively; and both ends of the heat exchange gas tube are fixedly connected to a first vent pipe and a second vent pipe, respectively.

[0008] A rotating shaft is installed inside the heat exchange tube and is coaxial with the heat exchange tube. The two ends of the rotating shaft are rotatably connected to the first end plate and the second end plate, respectively.

[0009] And a disturbance component, which is disposed outside the rotating shaft and inside the heat exchange gas pipe. During the rotation of the rotating shaft, the disturbance component pushes the gas to flow from the axis of the heat exchange gas pipe to the side wall or from the side wall to the axis of the heat exchange gas pipe. The disturbance component is provided in several parts.

[0010] The first pipe assembly is equipped with an air inlet pipe and a liquid inlet pipe respectively connected to the first vent pipe and the second liquid inlet pipe, and the second pipe assembly is equipped with an air outlet pipe and a liquid outlet pipe respectively connected to the second vent pipe and the second liquid inlet pipe.

[0011] The present invention is further configured such that: the heat exchange pipe includes a plurality of first spherical tubes arranged along the axis of the first vent pipe, and two adjacent first spherical tubes are connected by a first connecting pipe, and a sphere with the same center as the first spherical tube is provided inside the first spherical tube;

[0012] The heat exchange liquid pipe includes several second ball tubes arranged along the axis of the first vent pipe. Each first ball tube corresponds to one second ball tube. The second ball tube is sleeved outside the first ball tube. Adjacent second ball tubes are connected by a second connecting pipe, which is sleeved outside the corresponding first connecting pipe.

[0013] Each of the first connecting tubes is equipped with a disturbance component.

[0014] The present invention is further configured such that: a connecting rod is provided between the inner wall of the first ball tube and the ball, and the two ends of the connecting rod are respectively fixedly connected to the first ball tube and the ball.

[0015] The present invention is further configured such that: the disturbance component is configured as a first disturbance component and a second disturbance component, the first disturbance component drives the gas in the first connecting pipe to flow from the axis to the side wall, and the second disturbance component drives the gas in the first connecting pipe to flow from the side wall to the axis.

[0016] The present invention is further configured such that: the first disturbance component includes a plurality of first disturbance plates, the plurality of first disturbance plates are fixedly connected to the outside of the rotating shaft, and the end of the first disturbance plate away from the rotating shaft is inclined toward the side opposite to the rotation direction of the rotating shaft.

[0017] The present invention is further configured such that: the second disturbance component includes a disturbance ring, the disturbance ring is coaxial with the first connecting pipe and the outer wall of the disturbance ring is in contact with the inner wall of the first connecting pipe;

[0018] The fixing rods are arranged in a plurality of them, and the plurality of fixing rods are arranged around the axis of the rotating shaft and fixedly connected to the rotating shaft. The end of the fixing rod away from the rotating shaft is fixedly connected to the inner wall of the disturbance ring.

[0019] And a second disturbance plate, wherein multiple second disturbance plates are provided and fixedly connected to the inner wall of the disturbance ring, the multiple second disturbance plates are evenly arranged around the rotating shaft, and the end of the second disturbance plate near the axis of the rotating shaft is inclined toward the side opposite to the rotation direction of the rotating shaft.

[0020] In summary, the present invention has the following advantages over the prior art: by setting up the disturbance component, the present invention can promote the flow of high-temperature flue gas in the heat exchange pipe between the axis of the heat exchange pipe and the side wall, so that the flue gas in each place can fully transfer heat to the liquid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0022] Figure 2 This is a cross-sectional view of the overall structure of the embodiment;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0024] Figure 4 This is a schematic diagram illustrating the disturbance component in an embodiment;

[0025] Figure 5 This is a schematic diagram illustrating the first and second ventilators in an embodiment.

[0026] In the diagram: 1. First pipe assembly; 11. First liquid inlet pipe; 12. First vent pipe; 13. Liquid inlet pipe; 14. Air inlet pipe; 2. Second pipe assembly; 21. Second liquid inlet pipe; 22. Second vent pipe; 23. Air outlet pipe; 24. Liquid outlet pipe; 3. Heat exchange liquid pipe; 31. Second spherical pipe; 32. Second connecting pipe; 4. Heat exchange gas pipe; 41. First spherical pipe; 42. First connecting pipe; 43. Sphere; 431. Connecting rod; 5. Disturbance assembly; 51. First disturbance plate; 52. Disturbance ring; 53. Fixing rod; 54. Second disturbance plate; 6. Rotating shaft. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0028] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0029] Example: A waste heat recovery and utilization device for combined heat and power (CHP), see attached document. Figure 1 - Appendix Figure 5 The system includes a first tube group 1, a second tube group 2, a heat exchange tube group, a rotating shaft 6, and a disturbance component 5. The first tube group 1 includes a first vent pipe 12 and a first liquid pipe 11. The first liquid pipe 11 is sleeved outside the first vent pipe 12. The first vent pipe 12 and the first liquid pipe 11 are coaxially arranged. A first end plate is fixedly connected to one end of the first vent pipe 12 and the first liquid pipe 11 to close one end of the first vent pipe 12 and the first liquid pipe 11. The second tube group 2 includes a second vent pipe 22 and a second liquid pipe 21. The second liquid pipe 21 is sleeved outside the second vent pipe 22. The second vent pipe 22 and the second liquid pipe 21 are coaxially arranged. A second end plate is fixedly connected to the end of the second vent pipe 22 and the second liquid pipe 21 away from the first tube group 1 to close the end of the second vent pipe 22 and the second liquid pipe 21 away from the first tube group 1. The first tube group 1 and the second tube group 2 are coaxially arranged. The heat exchange tube group includes a heat exchange gas... The system includes a heat exchanger pipe 4 and a heat exchanger liquid pipe 3. The heat exchanger liquid pipe 3 is sleeved outside the heat exchanger gas pipe 4. The two ends of the heat exchanger liquid pipe 3 are fixedly connected to the first liquid pipe 11 and the second liquid pipe 21, respectively. The two ends of the heat exchanger gas pipe 4 are fixedly connected to the first vent pipe 12 and the second vent pipe 22, respectively. A rotating shaft 6 is set inside the heat exchanger gas pipe 4 and is coaxial with the heat exchanger gas pipe 4. The two ends of the rotating shaft 6 are rotatably connected to the first end plate and the second end plate, respectively. The disturbance component 5 is set outside the rotating shaft 6 and located inside the heat exchanger gas pipe 4. During the rotation of the rotating shaft 6, the disturbance component 5 pushes the gas to flow from the axis of the heat exchanger gas pipe 4 to the side wall or from the side wall to the axis of the heat exchanger gas pipe 4. The disturbance component 5 consists of several components. The first pipe group 1 is provided with an air inlet pipe 14 and a liquid inlet pipe 13, respectively connected to the first vent pipe 12 and the second liquid pipe 21. The second pipe group 2 is provided with an air outlet pipe 23 and a liquid outlet pipe 24, respectively connected to the second vent pipe 22 and the second liquid pipe 21.

[0030] By setting the disturbance component 5, the high-temperature flue gas in the heat exchange pipe 4 can be pushed to flow between the axis of the heat exchange pipe 4 and the side wall, so that the flue gas in each place can fully transfer heat to the liquid.

[0031] Specifically, the heat exchange pipe 4 includes several first spherical pipes 41 arranged along the axis of the first vent pipe 12, and adjacent first spherical pipes 41 are connected by a first connecting pipe 42. A sphere 43 with the same center as the first spherical pipe 41 is provided inside the first spherical pipe 41. The heat exchange liquid pipe 3 includes several second spherical pipes 31 arranged along the axis of the first vent pipe 12. Each first spherical pipe 41 corresponds to one second spherical pipe 31. The second spherical pipe 31 is sleeved outside the first spherical pipe 41, and adjacent second spherical pipes 31 are connected by a second connecting pipe 32. The second connecting pipe 32 is sleeved outside the corresponding first connecting pipe 42. A disturbance component 5 is provided inside each first connecting pipe 42.

[0032] A connecting rod 431 is provided between the inner wall of the first tube 41 and the ball 43, and the two ends of the connecting rod 431 are fixedly connected to the first tube 41 and the ball 43 respectively.

[0033] Specifically, the disturbance component 5 is configured as a first disturbance component 5 and a second disturbance component 5. The first disturbance component 5 causes the gas in the first connecting pipe 42 to flow from the axis to the side wall, and the second disturbance component 5 causes the gas in the first connecting pipe 42 to flow from the side wall to the axis.

[0034] Specifically, the first disturbance component 5 includes a plurality of first disturbance plates 51, which are fixedly connected to the outside of the rotating shaft 6. The end of the first disturbance plate 51 away from the rotating shaft 6 is inclined toward the side opposite to the rotation direction of the rotating shaft 6.

[0035] Specifically, the second disturbance component 5 includes a disturbance ring 52, a fixing rod 53, and a second disturbance plate 54. The disturbance ring 52 is coaxial with the first connecting pipe 42, and the outer wall of the disturbance ring 52 is in contact with the inner wall of the first connecting pipe 42. Several fixing rods 53 are arranged around the axis of the rotating shaft 6 and fixedly connected to the rotating shaft 6. The end of the fixing rod 53 away from the rotating shaft 6 is fixedly connected to the inner wall of the disturbance ring 52. Several second disturbance plates 54 are arranged around the rotating shaft 6 and fixedly connected to the inner wall of the disturbance ring 52. The multiple second disturbance plates 54 are evenly arranged around the rotating shaft 6, and the end of the second disturbance plate 54 near the axis of the rotating shaft 6 is inclined towards the side opposite to the rotation direction of the rotating shaft 6.

[0036] Specifically, the rotation of the shaft 6 is driven by a motor fixedly connected to the first end plate or the second end plate.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A waste heat recovery and utilization device for combined heat and power generation, characterized in that: The first tube assembly (1) includes a first vent tube (12) and a first liquid tube (11). The first liquid tube (11) is sleeved outside the first vent tube (12). The first vent tube (12) and the first liquid tube (11) are coaxially arranged. A first end plate is fixedly connected to one end of the first vent tube (12) and the first liquid tube (11) to close one end of the first vent tube (12) and the first liquid tube (11). The second tube group (2) includes a second vent tube (22) and a second liquid tube (21). The second liquid tube (21) is sleeved outside the second vent tube (22). The second vent tube (22) and the second liquid tube (21) are coaxially arranged. A second end plate is fixedly connected to the end of the second vent tube (22) and the second liquid tube (21) away from the first tube group (1) to close the end of the second vent tube (22) and the second liquid tube (21) away from the first tube group (1). The first tube group (1) and the second tube group (2) are coaxially arranged. The heat exchange tube assembly includes a heat exchange gas tube (4) and a heat exchange liquid tube (3). The heat exchange liquid tube (3) is sleeved outside the heat exchange gas tube (4). The two ends of the heat exchange liquid tube (3) are fixedly connected to the first liquid pipe (11) and the second liquid pipe (21) respectively. The two ends of the heat exchange gas tube (4) are fixedly connected to the first vent pipe (12) and the second vent pipe (22) respectively. A rotating shaft (6) is set inside the heat exchange tube (4) and is coaxial with the heat exchange tube (4). The two ends of the rotating shaft (6) are rotatably connected to the first end plate and the second end plate, respectively. And a disturbance component (5), which is disposed outside the rotating shaft (6) and inside the heat exchange gas pipe (4). During the rotation of the rotating shaft (6), the disturbance component (5) pushes the gas to flow from the axis of the heat exchange gas pipe (4) to the side wall or from the side wall to the axis of the heat exchange gas pipe (4). The disturbance component (5) is provided in several parts. The first pipe group (1) is provided with an air inlet pipe (14) and a liquid inlet pipe (13) respectively connected to the first vent pipe (12) and the second liquid inlet pipe (21), and the second pipe group (2) is provided with an air outlet pipe (23) and a liquid outlet pipe (24) respectively connected to the second vent pipe (22) and the second liquid inlet pipe (21).

2. The waste heat recovery and utilization equipment for cogeneration according to claim 1, characterized in that: The heat exchange pipe (4) includes several first ball pipes (41) arranged along the axis of the first vent pipe (12). Adjacent first ball pipes (41) are connected by a first connecting pipe (42). A ball (43) with the same center as the first ball pipe (41) is provided inside the first ball pipe (41). The heat exchange liquid pipe (3) includes several second ball pipes (31) arranged along the axis of the first vent pipe (12). Each first ball pipe (41) corresponds to a second ball pipe (31). The second ball pipe (31) is sleeved outside the first ball pipe (41). Adjacent second ball pipes (31) are connected by a second connecting pipe (32). The second connecting pipe (32) is sleeved outside the corresponding first connecting pipe (42). Each of the first connecting tubes (42) is provided with a disturbance component (5).

3. The waste heat recovery and utilization equipment for cogeneration according to claim 2, characterized in that: A connecting rod (431) is provided between the inner wall of the first ball tube (41) and the ball (43), and the two ends of the connecting rod (431) are fixedly connected to the first ball tube (41) and the ball (43) respectively.

4. The waste heat recovery and utilization equipment for cogeneration according to claim 3, characterized in that: The disturbance component (5) is configured as a first disturbance component (5) and a second disturbance component (5). The first disturbance component (5) causes the gas in the first connecting pipe (42) to flow from the axis to the side wall, and the second disturbance component (5) causes the gas in the first connecting pipe (42) to flow from the side wall to the axis.

5. A waste heat recovery and utilization device for cogeneration according to claim 4, characterized in that: The first disturbance component (5) includes a plurality of first disturbance plates (51), which are fixedly connected to the outside of the rotating shaft (6). The end of the first disturbance plate (51) away from the rotating shaft (6) is inclined toward the side opposite to the rotation direction of the rotating shaft (6).

6. The waste heat recovery and utilization equipment for cogeneration according to claim 5, characterized in that: The second disturbance component (5) includes a disturbance ring (52), which is coaxial with the first connecting pipe (42) and the outer wall of the disturbance ring (52) is in contact with the inner wall of the first connecting pipe (42); Fixed rod (53), a plurality of fixed rods (53) are provided, the plurality of fixed rods (53) are arranged around the axis of the rotating shaft (6) and fixedly connected to the rotating shaft (6), and the end of the fixed rod (53) away from the rotating shaft (6) is fixedly connected to the inner wall of the disturbance ring (52); And a second disturbance plate (54), a plurality of the second disturbance plates (54) are provided and fixedly connected to the inner wall of the disturbance ring (52). The plurality of second disturbance plates (54) are evenly arranged around the rotating shaft (6). The end of the second disturbance plate (54) near the axis of the rotating shaft (6) is inclined to the side opposite to the rotation direction of the rotating shaft (6).

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