Low-carbon environment-friendly boiler waste heat utilization device

Abstract

The low-carbon environment-friendly boiler waste heat utilization device comprises a heat exchange chamber, a heat exchange assembly and a cleaning assembly, the heat exchange assembly is installed in the middle in the heat exchange chamber and used for conducting heat exchange with smoke input into the heat exchange chamber, and a heat conduction part is rotatably installed on the outer side of the heat exchange assembly and used for conducting heat exchange with the smoke input into the heat exchange chamber. The cleaning assembly is detachably fixed to one side of an inner cavity of the heat exchange chamber and makes contact with the heat conduction part. The heat exchange assembly comprises an evaporation chamber, an upper end cap, a lower end cap, a top groove, a bottom groove, a movable cylinder, a water inlet pipe and an evaporation pipe. In the process that flue gas is input into the heat exchange chamber and exchanges heat with water in an inner cavity of the evaporation chamber through the movable cylinder and the evaporation chamber, the surface of the flue gas can be cleaned through contact friction between the cleaning assembly and rotation of the movable cylinder, and attachment of particulate matter impurities in the flue gas to the surface of the movable cylinder is reduced; therefore, the influence of excessive dust and impurity accumulation on heat exchange is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler facilities, in particular to a low-carbon and environmentally friendly boiler waste heat utilization device. Background Art

[0002] Low-carbon environmental protection refers to reducing the energy consumed in daily life, and its main purpose is to reduce greenhouse gas emissions. The boiler is an energy conversion device. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or then converted into electrical energy through a generator.

[0003] In the prior art, boilers generate heat, and most of this heat is used for heating factories. Through corresponding heat conduction, the purpose of heat utilization is achieved. However, while heating is convenient, since the boiler also discharges high-temperature flue gas during heating, the direct discharge of the flue gas after purification will result in a lack of effective utilization of the boiler waste heat. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a low-carbon and environmentally friendly boiler waste heat utilization device, which solves the problem that the boiler will discharge high-temperature flue gas while providing heat, and the flue gas will not be effectively utilized if it is directly discharged after purification.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-carbon and environmentally friendly boiler waste heat utilization device, comprising a heat exchange chamber, a heat exchange component and a cleaning component, wherein the heat exchange component is installed in the inner middle of the heat exchange chamber to exchange heat with the flue gas input into the heat exchange chamber, a heat conduction part is rotatably installed on the outer side of the heat exchange component, the cleaning component is detachably fixed to one side of the inner cavity of the heat exchange chamber and contacts the heat conduction part, the heat exchange component comprises an evaporation chamber, an upper end cap, a lower end cap, a top groove, a bottom groove, a movable cylinder, a water inlet pipe and an evaporation pipe The evaporation chamber is fixed in the inner cavity of the heat exchange chamber, and the upper and lower ends of the evaporation chamber are respectively connected with the upper end cap and the lower end cap, the upper end cap and the lower end cap are respectively fixed on the top and the bottom of the heat exchange chamber, the bottom of the lower end cap is connected with the external water pump by the water inlet pipe, the top of the upper end cap is connected with the evaporation tube, the inner cavity of the evaporation chamber is injected with water, the top groove and the bottom groove are respectively formed at the bottom of the upper end cap and the top of the lower end cap, and the upper and lower ends of the movable cylinder are respectively inserted into the top groove and the bottom groove, and the movable cylinder constitutes the heat conduction part of the heat exchange assembly.

[0008] Preferably, the low-carbon and environmentally friendly boiler waste heat utilization device also includes a motor, a transmission assembly and a friction wheel. The motor is installed and fixed on the outside of the heat exchange chamber, and the motor uses the transmission assembly to drive the rotation of the friction wheel. The friction wheel is rotatably installed in the inner cavity of the heat exchange chamber, and the friction wheel is in tangential contact with the movable cylinder. The transmission assembly is set as a belt drive structure or a chain drive structure.

[0009] It is further preferred that the heat exchange chamber includes a bracket, an insulation box, a smoke inlet pipe and a smoke outlet pipe, the bracket is supported and fixed below the insulation box, the heat exchange component and the cleaning component are both arranged in the inner cavity of the insulation box, the smoke inlet pipe and the smoke outlet pipe are respectively connected and arranged at the lower end and the upper end of the insulation box, and an opening that cooperates with the cleaning component is also formed on one side outer wall of the insulation box.

[0010] It is further preferred that the cleaning component includes a sealing cover, an adhesive layer and a cleaning part, the sealing cover is inserted into the side opening of the heat insulation box and fixedly connected thereto, the cleaning part is bonded and fixed to the side of the sealing cover facing the inner cavity of the heat insulation box by the adhesive layer, the side of the cleaning part facing the movable cylinder is configured as a curved surface matching therewith, and the cleaning part is configured as a sponge pad or a brush with a plurality of fine bristles evenly arranged on the curved surface.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a low-carbon and environmentally friendly boiler waste heat utilization device, which has the following beneficial effects:

[0013] In the utility model, by cooperating with the movable cylinder and the cleaning assembly in the heat exchange assembly, when the flue gas is input into the heat exchange chamber and uses the movable cylinder and the evaporation chamber to exchange heat with the water in the inner cavity of the evaporation chamber, the rotation of the movable cylinder and the friction with the cleaning assembly can be used to clean its surface, thereby reducing the adhesion of particulate impurities in the flue gas to the surface of the movable cylinder, thereby reducing the influence of excessive accumulation of dust and impurities on heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the internal structure of a low-carbon and environmentally friendly boiler waste heat utilization device according to the implementation plan;

[0015] Figure 2 for Figure 1 The overall structural diagram of a medium-low carbon and environmentally friendly boiler waste heat utilization device;

[0016] Figure 3 It is a schematic diagram of the structure of the half-section heat exchange component and the cleaning component.

[0017] In the figure: 10, heat exchange chamber; 11, bracket; 12, heat insulation box; 13, flue gas inlet pipe; 14, flue gas outlet pipe; 20, heat exchange component; 21, evaporation chamber; 22, upper end cap; 23, lower end cap; 24, top groove; 25, bottom groove; 26, movable cylinder; 27, water inlet pipe; 28, evaporation tube; 30, motor; 40, transmission component; 50, friction wheel; 60, cleaning component; 61, sealing cover; 62, adhesive layer; 63, cleaning part. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 and Figure 2 A low-carbon and environmentally friendly boiler waste heat utilization device may include a heat exchange chamber 10, a heat exchange component 20, a motor 30, a transmission component 40, a friction wheel 50, and a cleaning component 60. The heat exchange component 20 is installed in the inner middle of the heat exchange chamber 10 to exchange heat with the flue gas input into the heat exchange chamber 10. A heat conduction part is rotatably installed on the outer side of the heat exchange component 20, and is fixed to the outer side of the heat exchange chamber 10 by the motor 30. The motor 30 drives the rotation of the friction wheel 50 by the transmission component 40, so that the friction wheel 50 is rotatably installed in the inner cavity of the heat exchange chamber 10. The friction wheel 50 is in tangential contact with the heat conduction part, so that when the friction wheel 50 rotates, the friction wheel can drive the heat conduction part to rotate. The cleaning component 60 is detachably fixed to one side of the inner cavity of the heat exchange chamber 10 and contacts the heat conduction part, so that the dust and impurities attached to the surface of the heat conduction part can be swept off by the cleaning component during the rotation of the heat conduction part.

[0020] See also Figure 2 The heat exchange chamber 10 includes a bracket 11, an insulation box 12, a smoke inlet pipe 13 and a smoke outlet pipe 14. The insulation box 12 can be supported and fixed at a certain height by the bracket 11, and the insulation box 12 can be made of thermal insulation materials to reduce the influence of the external environment on the heat exchange between the smoke and the heat exchange component 20. The smoke inlet pipe 13 and the smoke outlet pipe 14 are connected and arranged at the lower end and the upper end of the insulation box 12, respectively, and the two are used for the input and output of boiler smoke, respectively. The heat exchange component 20 and the cleaning component 60 are both arranged in the inner cavity of the insulation box 12, and an opening matching the cleaning component 60 is also formed on one side of the outer wall of the insulation box 12.

[0021] See also Figure 2 and3 The heat exchange assembly 20 includes an evaporation chamber 21, an upper end cap 22, a lower end cap 23, a top groove 24, a bottom groove 25, a movable cylinder 26, a water inlet pipe 27 and an evaporation pipe 28. The evaporation chamber 21 is fixed in the inner cavity of the heat exchange chamber 10, and the upper and lower ends of the evaporation chamber 21 are respectively connected to the upper end cap 22 and the lower end cap 23, and the upper end cap 22 and the lower end cap 23 are respectively fixed to the top and bottom of the heat exchange chamber 10. The bottom of the lower end cap 23 is connected to an external water pump through a water inlet pipe 27, so that the external water pump can inject water into the inner cavity of the evaporation chamber 21. The top of the upper end cap 22 is connected to the evaporation pipe 28, and a liquid level sensor (not shown in the figure) can also be installed in the evaporation chamber to detect the liquid level height of the water body inside it to avoid overflow caused by excessive water injection. Liquid level sensors can be set at both the higher and lower positions in the evaporation chamber 21, so that water addition is stopped after the water body is injected to the liquid level sensor at the higher position; and water addition is started after the water body evaporates and the liquid level drops to the liquid level sensor at the lower position. The top groove 24 and the bottom groove 25 are formed at the bottom of the upper end cap 22 and the top of the lower end cap 23, respectively, and the upper and lower ends of the movable cylinder 26 are inserted into the top groove 24 and the bottom groove 25, respectively. The movable cylinder 26 and the evaporation chamber 21 can be made of metal materials with good thermal conductivity, and the movable cylinder 26 constitutes the heat conduction part of the heat exchange component 20.

[0022] In this embodiment, the transmission assembly 40 can adopt a belt transmission structure or a chain transmission structure, and the transmission pulley or sprocket is connected to the output end of the motor 30 and the top of the friction wheel 50, and then the friction wheel 50 is rotated by the transmission cooperation between the transmission belt or the transmission chain and the transmission pulley or sprocket. The area where the friction wheel 50 can contact the movable cylinder 26 can be set to have a higher roughness, so that when the friction wheel 50 rotates, it can drive the movable cylinder 26 to rotate more smoothly.

[0023] See also Figure 3 The cleaning assembly 60 includes a sealing cover 61, an adhesive layer 62, and a cleaning part 63. The sealing cover 61 can be inserted into the side opening of the heat insulation box 12 and fixedly connected thereto, and can be taken out from the opening after long-term use, so as to replace the cleaning assembly 60. The cleaning part 63 is bonded and fixed to the side of the sealing cover 61 facing the inner cavity of the heat insulation box 12 by the adhesive layer 62, and the side of the cleaning part 63 facing the movable cylinder 26 is set to a curved surface that matches it, and the height of the cleaning part 63 is close to the height of the movable cylinder 26, so that the cleaning part 63 can better contact with the movable cylinder 26. The cleaning part 63 can use a sponge pad or a brush with multiple fine bristles evenly arranged on the curved surface, so that it can be used to remove dust and impurities on the surface of the movable cylinder 26.

[0024] The system of the present invention may also include a control system for controlling the operation of the motor and the external water pump, etc., so as to automatically clean the movable drum and add water. It should be understood that the control system has no particular limitation and can be implemented by the control technology in the prior art, which will not be described in detail here.

[0025] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-carbon and environmentally friendly boiler waste heat utilization device, comprising a heat exchange chamber (10), characterized in that: The heat exchange assembly (20) and the cleaning assembly (60) are also included. The heat exchange assembly (20) is installed in the middle of the heat exchange chamber (10) to perform heat exchange with the flue gas input into the heat exchange chamber (10). A heat conducting portion is rotatably installed on the outer side of the heat exchange assembly (20). The cleaning assembly (60) is detachably fixed to one side of the inner cavity of the heat exchange chamber (10) and is in contact with the heat conducting portion. The heat exchange assembly (20) comprises an evaporation chamber (21), an upper end cap (22), a lower end cap (23), a top groove (24), a bottom groove (25), a movable cylinder (26), a water inlet pipe (27) and an evaporation pipe (28); the evaporation chamber (21) is fixed in the inner cavity of the heat exchange chamber (10); the upper and lower ends of the evaporation chamber (21) are respectively connected to the upper end cap (22) and the lower end cap (23); the upper end cap (22) and the lower end cap (23) are respectively fixed to the top and the bottom of the heat exchange chamber (10); The bottom of the lower end cap (23) is connected to an external water pump via a water inlet pipe (27), the top of the upper end cap (22) is connected to an evaporation pipe (28), water is injected into the inner cavity of the evaporation chamber (21), the top groove (24) and the bottom groove (25) are respectively formed at the bottom of the upper end cap (22) and the top of the lower end cap (23), and the upper and lower ends of the movable cylinder (26) are respectively inserted into the top groove (24) and the bottom groove (25), and the movable cylinder (26) constitutes a heat conduction part of the heat exchange component (20).

2. A low-carbon and environmentally friendly boiler waste heat utilization device according to claim 1, characterized in that: The invention also includes a motor (30), a transmission assembly (40) and a friction wheel (50), wherein the motor (30) is fixedly mounted on the outside of the heat exchange chamber (10), and the motor (30) drives the rotation of the friction wheel (50) by means of the transmission assembly (40), and the friction wheel (50) is rotatably mounted in the inner cavity of the heat exchange chamber (10), and the friction wheel (50) is in tangential contact with the movable cylinder (26).

3. A low-carbon and environmentally friendly boiler waste heat utilization device according to claim 2, characterized in that: The transmission assembly (40) is configured as a belt transmission structure or a chain transmission structure.

4. A low-carbon and environmentally friendly boiler waste heat utilization device according to any one of claims 1 to 3, characterized in that: The heat exchange chamber (10) comprises a bracket (11), a heat insulation box (12), a smoke inlet pipe (13) and a smoke outlet pipe (14); the bracket (11) is supported and fixed below the heat insulation box (12); the heat exchange component (20) and the cleaning component (60) are both arranged in the inner cavity of the heat insulation box (12); the smoke inlet pipe (13) and the smoke outlet pipe (14) are respectively connected and arranged at the lower end and the upper end of the heat insulation box (12); and an opening that matches the cleaning component (60) is also formed on one side outer wall of the heat insulation box (12).

5. A low-carbon and environmentally friendly boiler waste heat utilization device according to claim 4, characterized in that: The cleaning assembly (60) includes a sealing cover (61), an adhesive layer (62) and a cleaning part (63); the sealing cover (61) is inserted into the side opening of the heat insulation box (12) and is fixedly connected thereto; the cleaning part (63) is bonded and fixed to the side of the sealing cover (61) facing the inner cavity of the heat insulation box (12) by means of the adhesive layer (62); and the side of the cleaning part (63) facing the movable cylinder (26) is arranged to be a curved surface matching therewith.

6. A low-carbon and environmentally friendly boiler waste heat utilization device according to claim 5, characterized in that: The dust cleaning portion (63) is configured as a sponge pad or a brush with a plurality of fine bristles evenly arranged on a curved surface.

Images