Heat boiler steam-water pipeline waste heat recovery device

Abstract

The utility model discloses a heat boiler steam-water pipeline waste heat recovery device which comprises a recovery device body, a heat conduction assembly is arranged on the recovery device body, the heat conduction assembly comprises a flow guide pipe, the flow guide pipe is installed inside the recovery device body, a heat exchange pipe is spirally wound on the surface of the flow guide pipe, and the heat exchange pipe is fixedly connected with the recovery device body. The heat exchange pipe is fixedly installed on the surface of the flow guide pipe through a fixing mechanism, the fixing mechanism comprises a heat conduction seat, the heat conduction seat is spirally welded to the surface of the flow guide pipe, fixing rings are installed at the two ends of the heat conduction seat, and the heat conduction seat is made of copper. Heat emitted by the flow guide pipe is absorbed through the heat exchange pipe, the heat exchange pipe is fixedly attached to the surface of the flow guide pipe through the fixing mechanism, meanwhile, heat conduction is facilitated due to the fact that the heat conduction base is made of copper, and the heat absorption capacity of the flow guide pipe can be improved by installing the heat conduction rings on the inner wall of the flow guide pipe.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, and in particular to a waste heat recovery device for steam and water pipelines of a thermal boiler. Background Technology

[0002] A thermal boiler is a key piece of equipment that converts water into steam or hot water. It is widely used in power generation, industrial production and domestic heating. During the use of a thermal boiler, steam and water pipelines are used to transfer hot air. Heat loss will occur during the transfer process. Waste heat recovery devices are used to reduce heat loss.

[0003] A search revealed Chinese patent application number 202323571113.0, which discloses a waste heat recovery device for a steam-water pipeline of a thermal boiler. The device includes a steam-water pipeline, a waste heat recovery component on the outer surface of the pipeline, the waste heat recovery component being located on an external support structure, a protective structure on the outer surface of the waste heat recovery component, and a water injection pipe on the waste heat recovery component connected to an external water injection structure. The waste heat recovery component also includes a drain pipe connected to an external drain structure. The waste heat recovery component includes a water storage tank located on the external support structure. The top of the water storage tank is fixedly connected to the water injection pipe, and the inner surface of the outer surface of the water storage tank is fixedly connected to the drain pipe. A heat insulation plate is fixedly installed on the outer surface of the water storage tank, and a control panel is fixedly installed on the side of the heat insulation plate away from the water storage tank. The waste heat recovery device for steam and water pipelines of the thermal boiler in the above patent has the following shortcomings: the heat exchange tube of the device is installed inside the protective structure, which makes it impossible for the heat exchange tube to be attached to the steam and water pipeline, resulting in a reduction in the heat absorption effect, thus causing defects in the waste heat recovery device. Utility Model Content

[0004] The purpose of this invention is to further address the shortcomings of existing technologies by proposing a waste heat recovery device for steam and water pipelines in thermal boilers.

[0005] This device is further configured to achieve the above objectives, and the present invention adopts the following technical solution:

[0006] A waste heat recovery device for steam and water pipelines of a thermal boiler includes a main body of the recovery device. A heat conduction component is provided on the main body of the recovery device. The heat conduction component includes a guide pipe, which is installed inside the main body of the recovery device. A heat exchange tube is spirally wrapped around the surface of the guide pipe. The heat exchange tube is fixedly installed on the surface of the guide pipe by a fixing mechanism. The fixing mechanism includes a heat conduction seat, which is spirally welded to the surface of the guide pipe. Fixing rings are installed at both ends of the heat conduction seat. The heat conduction seat is made of copper.

[0007] As a further improvement of this utility model: the heat conduction component further includes a heat-conducting coil, which is arranged and installed along the inner wall of the guide tube. The guide tube is made of a heat-conducting material, and the inner wall of the guide tube and the surface of the heat-conducting coil are provided with a graphene nano-coating.

[0008] As a further improvement of this utility model: the guide pipe is vacuum-sealed and installed inside the main body of the recovery device, and flanges are installed at both ends of the guide pipe for connecting boiler steam and water pipes.

[0009] As a further embodiment of this utility model: the waste heat recovery device also includes a water tank, which is installed on one side of the boiler steam-water pipeline. The water tank is equipped with a heat-conducting plate, which divides the interior of the water tank into a drinking water chamber and a heat conduction chamber. A water pipe is installed on the outer wall of the water tank near the heat conduction chamber, and the water pipe is connected to the heat exchange pipe. A water inlet is provided on the top side of the water tank near the heat conduction chamber.

[0010] As a further improvement of this utility model: a water pump is installed on the main body of the recycling device, and the inlet and outlet of the water pump are respectively connected to the water pipe and the heat exchange pipe.

[0011] As a further improvement of this utility model: several faucets are arranged and installed on the outer wall of the water tank near the drinking water compartment, and a control panel is installed on the top of the water tank via a bracket.

[0012] As a further improvement of this utility model: a sensor assembly is installed at the top of the water tank near the drinking water reservoir, the sensor assembly including a liquid level sensor and a temperature sensor.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. During the boiler steam-water transfer process, heat exchange tubes absorb the heat emitted by the guide tubes. A fixing mechanism secures the heat exchange tubes to the surface of the guide tubes. Since the heat-conducting base is made of copper, it facilitates heat conduction. Installing several heat-conducting rings on the inner wall of the guide tubes can improve their heat absorption capacity. Furthermore, the sealed vacuum structure between the guide tubes and the main body of the recovery device reduces heat loss. Applying a graphene nano-coating to the inner wall of the guide tubes and the surface of the heat-conducting rings prevents scale buildup, thus avoiding any impact on waste heat recovery.

[0015] 2. By using a water pump to drive the flow of heat transfer fluid in the water pipes and heat transfer chamber, the drinking water in the drinking water tank is heated, thereby utilizing waste heat. By setting up sensor components, the content and heat of the drinking water in the drinking water tank can be monitored. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a waste heat recovery device for a thermal boiler steam-water pipeline proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure for installing the heat-conducting coil proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure for installing the heat-conducting base proposed in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of a waste heat recovery device for a thermal boiler steam-water pipeline proposed in this utility model.

[0020] In the diagram: 1-Boiler steam and water pipe, 2-Recovery device body, 3-Flange, 4-Water tank, 5-Water tap, 6-Control panel, 7-Sensor assembly, 8-Water pump, 9-Water pipe, 10-Heat conduction ring, 11-Flow guide pipe, 12-Heat conduction base, 13-Fixing ring, 14-Heat exchange pipe, 15-Heat conduction plate, 16-Drinking water tank, 17-Heat conduction chamber. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] A waste heat recovery device for steam and water pipelines of a thermal boiler, such as Figures 1-4 As shown, the device includes a main body 2 of the recovery device, on which a heat conduction component is provided. The heat conduction component includes a guide pipe 11, which is installed inside the main body 2 of the recovery device. A heat exchange pipe 14 is spirally wrapped around the surface of the guide pipe 11. The heat exchange pipe 14 is fixedly installed on the surface of the guide pipe 11 by a fixing mechanism. The fixing mechanism includes a heat conduction seat 12, which is spirally welded to the surface of the guide pipe 11. Fixing rings 13 are installed at both ends of the heat conduction seat 12. The heat conduction seat 12 is made of copper.

[0024] The heat conduction assembly also includes a heat conduction coil 10, which is arranged and installed along the inner wall of the flow guide tube 11. The flow guide tube 11 is made of a heat-conducting material, and the inner wall of the flow guide tube 11 and the surface of the heat conduction coil 10 are provided with a graphene nano-coating.

[0025] The guide pipe 11 is sealed and vacuum installed inside the main body 2 of the recovery device. Flanges 3 are installed at both ends of the guide pipe 11 for connecting the boiler steam and water pipes 1.

[0026] The boiler steam-water pipe 1 is connected to the guide pipe 11 using flange 3. During the boiler steam-water transfer process, the heat exchange tube 14 absorbs the heat emitted by the guide pipe 11. The heat exchange tube 14 is fixed to the surface of the guide pipe 11 using a fixing mechanism. Since the heat-conducting base 12 is made of copper for easy heat conduction, the heat absorption capacity of the guide pipe 11 can be improved by installing several heat-conducting rings 10 on the inner wall of the guide pipe 11. Furthermore, the sealed vacuum structure between the guide pipe 11 and the main body 2 of the recovery device reduces heat loss. A graphene nano-coating is applied to the inner wall of the guide pipe 11 and the surface of the heat-conducting rings 10 to prevent scale buildup and thus avoid affecting waste heat recovery.

[0027] This device is further configured such as Figures 1-4 As shown, the waste heat recovery device also includes a water tank 4, which is installed on one side of the boiler steam-water pipeline 1. A heat-conducting plate 15 is installed inside the water tank 4, dividing the interior of the water tank 4 into a drinking water chamber 16 and a heat conduction chamber 17. A water pipe 9 is installed on the outer wall of the water tank 4 near the heat conduction chamber 17, and the water pipe 9 is connected to the heat exchange pipe 14. A water inlet is provided on the top of the side of the water tank 4 near the heat conduction chamber 17.

[0028] A water pump 8 is installed on the main body 2 of the recovery device. The inlet and outlet of the water pump 8 are connected to the water pipe 9 and the heat exchange pipe 14, respectively.

[0029] Several faucets 5 are arranged and installed on the outer wall of the water tank 4 near the drinking water compartment 16, and a control panel 6 is installed on the top of the water tank 4 via a bracket;

[0030] A sensor assembly 7 is installed on the top of the water tank 4 near the drinking water compartment 16. The sensor assembly 7 includes a liquid level sensor and a temperature sensor.

[0031] By using a water pump 8 to drive the flow of heat transfer fluid in the water pipe 9 and heat transfer chamber 17, the drinking water in the drinking water chamber 16 is heated, thereby utilizing waste heat. By setting up a sensor assembly 7, the content and heat of the drinking water in the drinking water chamber 16 can be monitored.

[0032] Working principle: The boiler steam-water pipe 1 is installed at both ends of the guide pipe 11. Drinking water is injected into the drinking water tank 16 through the water inlet. The heat transfer liquid in the heat transfer tank 17 is driven by the water pump 8 to absorb the heat emitted by the guide pipe 11. The drinking water in the drinking water tank 16 is heated by the heat transfer plate 15 to realize the recovery and utilization of waste heat.

[0033] The above are merely preferred embodiments of this utility model. For parts that do not require creative effort in circuit control, signal control and transmission, please refer to the prior art. However, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and utility model concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A waste heat recovery device for steam and water pipelines of a thermal boiler, comprising a recovery device body (2), wherein a heat conduction component is provided on the recovery device body (2), characterized in that, The heat conduction assembly includes a flow guide tube (11), which is installed inside the main body (2) of the recovery device. A heat exchange tube (14) is spirally wrapped around the surface of the flow guide tube (11). The heat exchange tube (14) is fixedly installed on the surface of the flow guide tube (11) by a fixing mechanism. The fixing mechanism includes a heat conduction seat (12), which is spirally welded to the surface of the flow guide tube (11). Fixing rings (13) are installed at both ends of the heat conduction seat (12). The heat conduction seat (12) is made of copper.

2. The waste heat recovery device for steam and water pipelines of a thermal boiler according to claim 1, characterized in that, The heat conduction component also includes a heat-conducting coil (10), which is arranged and installed along the inner wall of the flow guide tube (11). The flow guide tube (11) is made of a heat-conducting material, and the inner wall of the flow guide tube (11) and the surface of the heat-conducting coil (10) are provided with a graphene nano-coating.

3. The waste heat recovery device for steam and water pipelines of a thermal boiler according to claim 2, characterized in that, The guide pipe (11) is sealed and vacuum installed inside the main body (2) of the recovery device, and flanges (3) are installed at both ends of the guide pipe (11) for connecting the boiler steam and water pipes (1).

4. A waste heat recovery device for steam and water pipelines of a thermal boiler according to claim 3, characterized in that, The waste heat recovery device also includes a water tank (4), which is installed on one side of the boiler steam-water pipe (1). The water tank (4) is equipped with a heat-conducting plate (15) inside, which divides the interior of the water tank (4) into a drinking water chamber (16) and a heat conduction chamber (17). A water pipe (9) is installed on the outer wall of the water tank (4) near the heat conduction chamber (17). The water pipe (9) is connected to the heat exchange pipe (14). A water inlet is provided on the top of the side of the water tank (4) near the heat conduction chamber (17).

5. A waste heat recovery device for steam and water pipelines of a thermal boiler according to claim 4, characterized in that, A water pump (8) is installed on the main body (2) of the recycling device. The inlet and outlet of the water pump (8) are connected to the water pipe (9) and the heat exchange pipe (14) respectively.

6. A waste heat recovery device for steam and water pipelines of a thermal boiler according to claim 5, characterized in that, Several faucets (5) are arranged and installed on the outer wall of the water tank (4) near the drinking water container (16), and a control panel (6) is installed on the top of the water tank (4) via a bracket.

7. A waste heat recovery device for a thermal boiler steam-water pipeline according to claim 6, characterized in that, A sensor assembly (7) is installed on the top of the water tank (4) near the drinking water container (16), the sensor assembly (7) including a liquid level sensor and a temperature sensor.

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