Heat exchange device capable of recycling waste heat

Abstract

The utility model relates to the technical field of waste gas heat recovery devices, in particular to a heat exchange device capable of recycling waste heat, which comprises an air cylinder and a water inlet piece, an air injection plate is horizontally fixed at the top of the outer circumferential surface of the air cylinder, and an air injection rod vertically penetrates through the circumferential surface of the air cylinder to be communicated and fixed on the bottom surface of the air injection plate. The bottom of one end of the air cylinder is horizontally and fixedly communicated with an exhaust pipe, the water inlet piece comprises a water guide cylinder, the water guide cylinder is horizontally arranged in the air cylinder, the two ends of the water guide cylinder are horizontally and fixedly communicated with communicating pipes, the communicating pipes are rotatably connected to the two end faces of the air cylinder in a penetrating mode, and a brush plate is vertically fixed to the bottom side of the inner wall of the air cylinder. The top face of the brush plate abuts against the outer wall of the water guide cylinder. Waste gas contains dust, the dust adheres to the wall of the condensate water discharge pipe, heat transfer to the condensate water discharge pipe is affected, the heat storage amount of the wall of the condensate water discharge pipe is reduced, the conversion efficiency of heat in the waste gas is improved, and the waste heat recovery efficiency is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas heat recovery devices, in particular to a heat exchange device for recycling waste heat. Background Art

[0002] In some areas of industrial calcination, it is often necessary to heat some materials, and there are various ways to heat them. After heating the raw materials, large gases will be generated. These gases are generally discharged directly from the device or treated as waste gas. However, whether they are discharged directly or treated as waste gas for reuse, the heat in them will be lost, resulting in waste. In order to better save resources, it is convenient to reuse this heat.

[0003] The existing announcement number is CN201116841Y, and the name is a heat exchange device for utilizing waste heat of boiler exhaust gas. It has a shell and a flue joint fixedly connected to the two ends of the shell. A condensate discharge pipe is provided at the lower end wall of the shell. It is characterized in that corresponding heat exchange tube tube rails are evenly distributed on the inner walls of the front and rear sides of the shell, and an inlet and outlet main pipe are respectively provided at both ends of the front side wall of the shell. The inner side walls of the inlet and outlet main pipes are respectively provided with interfaces with internal threads. A drawer-type structure is adopted for the installation of the heat exchange tube, which makes maintenance, repair and replacement work simpler and faster, and also improves work efficiency.

[0004] However, when the above-mentioned waste heat is recovered, the waste gas containing heat is introduced into the shell, and the waste gas containing heat contacts the condensate discharge pipe and the heat is transferred to the pipe wall. The condensed water guided in the condensate discharge pipe carries the heat of the pipe wall to complete the heat recovery. However, the above-mentioned introduced waste gas contains dust, and the dust adheres to the wall of the condensate discharge pipe, affecting the heat transfer to the condensate discharge pipe, resulting in a decrease in the heat storage capacity of the condensate discharge pipe wall, which affects the heat conversion efficiency in the waste gas and the waste heat recovery efficiency. Utility Model Content

[0005] The utility model solves the problems in the related art and proposes a heat exchange device for recycling waste heat.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a heat exchange device for waste heat recycling, including an air cylinder and a water inlet, a jet plate is horizontally fixed to the top of the outer circumference of the air cylinder, and a jet rod is fixed to the bottom surface of the jet plate vertically through the circumference of the air cylinder, and an exhaust pipe is horizontally connected and fixed to the bottom of one end of the air cylinder, the water inlet includes a water guide cylinder, the water guide cylinder is horizontally arranged inside the air cylinder, and both ends of the water guide cylinder are horizontally connected and fixed with connecting pipes, and the connecting pipes penetrate and are rotatably connected to the two end surfaces of the air cylinder, a brush plate is vertically fixed to the bottom side of the inner wall of the air cylinder, and the top surface of the brush plate is pressed against the outer wall of the water guide cylinder.

[0007] As a preferred solution, an air intake pipe is vertically connected and fixed on the top surface of the jet plate, and an air pump is connected and fixed on the air intake pipe.

[0008] As a preferred solution, the bottom of the outer circumferential surface of the air cylinder is connected and fixed with an ash receiving frame box, and a sealing cover is provided at the bottom end of the ash receiving frame box.

[0009] As a preferred solution, multiple convex rings are transversely arranged on the outer circumference of the water guide cylinder, and the multiple convex rings are connected and fixed on the outer circumference of the water guide cylinder, and multiple corrugated ring plates are transversely arranged on the inner circumference of the water guide cylinder.

[0010] As a preferred solution, a water inlet pipe is horizontally arranged at the end of the connecting pipe, and a rotating drum is fixedly connected to the end of the water inlet pipe, and the rotating drum and the connecting pipe are rotatably connected through a sealed bearing.

[0011] As a preferred solution, a motor is horizontally fixed on one end surface of the air cylinder, and a driving gear is fixed on the output end of the motor.

[0012] As a preferred solution, a driven gear is fixed to the connecting pipe at one end of the water guide cylinder, and the driven gear is meshed with the driving gear.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: during use, the waste gas containing heat is guided into the air cylinder through the jet plate, and then the connecting pipes at both ends of the water guide cylinder in the water inlet component are connected and fixed with the external water supply pipeline, and the exchanged water enters the water guide cylinder, and the waste gas containing heat in the air cylinder contacts the outer wall of the water guide cylinder, and the heat enters the wall of the water guide cylinder. The water flowing in the water guide cylinder contacts the wall of the water guide cylinder and carries the heat out of the water guide cylinder. During cleaning, the water guide cylinder rotates in the air cylinder, driving the outer wall of the water guide cylinder to press against the brush plate, and the dust and impurities adhered to the outer wall of the water guide cylinder are removed by using the brush plate, thereby ensuring the area of ​​the water guide cylinder in contact with the air and improving the heat conversion efficiency and waste heat recovery efficiency in the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the water inlet component in the disassembled state according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of the water guide tube in the disassembled state according to an embodiment of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the gas cylinder in the decomposed state according to the embodiment of the present invention.

[0019] In the figure: 1. air cylinder; 11. brush plate; 12. jet plate; 13. air inlet pipe; 14. air pump; 15. exhaust pipe; 16. ash receiving frame box; 17. cover; 18. motor; 19. driving gear; 2. water inlet part; 21. water guide cylinder; 211. connecting pipe; 212. convex ring; 213. corrugated ring plate; 214. driven gear; 22. water inlet pipe; 23. rotating drum. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0025] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0026] like Figures 1 to 5As shown, a heat exchange device for recycling waste heat includes an air cylinder 1 and a water inlet 2. A jet plate 12 is horizontally fixed to the top of the outer circumference of the air cylinder 1, and a jet rod is fixed to the bottom surface of the jet plate 12 vertically through the circumference of the air cylinder 1. An exhaust pipe 15 is fixed to the bottom of one end of the air cylinder 1 horizontally. The water inlet 2 includes a water guide cylinder 21, which is horizontally arranged inside the air cylinder 1, and both ends of the water guide cylinder 21 are horizontally connected and fixed with a connecting pipe 211, and the connecting pipe 211 penetrates and is rotatably connected to the two end surfaces of the air cylinder 1. A brush plate 11 is vertically fixed to the bottom side of the inner wall of the air cylinder 1, and the top surface of the brush plate 11 is pressed against the outer wall of the water guide cylinder 21, and the heat contained in the water guide cylinder 21 is discharged during use. A large amount of exhaust gas is guided into the air cylinder 1 through the jet plate 12, and then the connecting pipes 211 at both ends of the water cylinder 21 in the water inlet part 2 are connected and fixed with the external water supply pipeline, and the hot water enters the water cylinder 21. The exhaust gas containing heat in the air cylinder 1 contacts the outer wall of the water cylinder 21, and the heat enters the wall of the water cylinder 21. The water flowing in the water cylinder 21 contacts the wall of the water cylinder 21 and carries the heat out of the water cylinder 21. During cleaning, the water cylinder 21 rotates in the air cylinder 1, driving the outer wall of the water cylinder 21 to press against the brush plate 11, and the brush plate 11 is used to remove dust and impurities adhered to the outer wall of the water cylinder 21, thereby ensuring the contact area of ​​the water cylinder 21 with the air and improving the heat conversion efficiency and waste heat recovery efficiency in the exhaust gas.

[0027] In one embodiment, Figure 2 and 3 As shown, an air intake pipe 13 is vertically connected and fixed on the top surface of the jet plate 12, and an air pump 14 is connected and fixed on the air intake pipe 13. An ash receiving frame box 16 is connected and fixed to the bottom of the outer circumference of the air cylinder 1, and a cover 17 is provided at the bottom end of the ash receiving frame box 16. During use, the air pump 14 on the air intake pipe 13 is started to drive external air into the jet plate 12, and the exhaust gas is sprayed into the air cylinder 1 by using the jet rod. The cleaned dust in the air cylinder 1 falls into the ash receiving frame box 16, and the cover 17 on the bottom surface of the ash receiving frame box 16 is opened to discharge the dust.

[0028] In one embodiment, Figure 2 and 3 As shown, a plurality of raised rings 212 are transversely arranged on the outer circumferential surface of the water guide cylinder 21, and the plurality of raised rings 212 are connected and fixed to the outer circumferential surface of the water guide cylinder 21. A plurality of corrugated ring plates 213 are transversely arranged on the inner circumferential surface of the water guide cylinder 21. The plurality of raised rings 212 and the plurality of corrugated ring plates 213 on the water guide cylinder 21 increase the contact area between the outer wall of the water guide cylinder 21 and the air and the inner wall of the water guide cylinder 21, thereby ensuring the exchange efficiency of heat in the exhaust gas to the internal water.

[0029] In one embodiment, Figure 2 and 3As shown, a water inlet pipe 22 is horizontally arranged at the end of the connecting pipe 211, and a rotating drum 23 is fixed to the end of the water inlet pipe 22, and the rotating drum 23 is rotatably connected to the connecting pipe 211 through a sealed bearing. The water inlet pipe 22 is used to connect the water supply pipeline. At the same time, the rotating drum 23 on the water inlet pipe 22 is rotatably connected to the connecting pipe 211 through a sealed bearing, which is convenient for rotation to supply water.

[0030] In one embodiment, Figure 2 and 3 As shown, a motor 18 is fixed horizontally on one end surface of the air cylinder 1, and a driving gear 19 is fixed to the output end of the motor 18. A driven gear 214 is fixed to the connecting pipe 211 at one end of the water guide cylinder 21, and the driven gear 214 is engaged with the driving gear 19. The starting motor 18 drives the driving gear 19 to rotate, and the meshing drives the driven gear 214 on the connecting pipe 211, which drives the water guide cylinder 21 to rotate, so as to facilitate the later uniform fall of dust adhering to the outer wall of the water guide cylinder 21.

[0031] In this embodiment, during use, the waste gas containing heat is guided into the air cylinder 1 through the jet plate 12, and then the connecting pipes 211 at both ends of the water cylinder 21 in the water inlet member 2 are connected and fixed to the external water supply pipeline, and the heated water enters the water cylinder 21. The waste gas containing heat in the air cylinder 1 contacts the outer wall of the water cylinder 21, and the heat enters the wall of the water cylinder 21. The water flowing in the water cylinder 21 contacts the wall of the water cylinder 21 and carries the heat out of the water cylinder 21. During cleaning, the water cylinder 21 rotates in the air cylinder 1, driving the outer wall of the water cylinder 21 to press against the brush plate 11, and the brush plate 11 is used to remove dust and impurities adhering to the outer wall of the water cylinder 21.

[0032] The above is a preferred embodiment of the present invention. Technicians in the field of the present invention can also change and modify the above embodiment. Therefore, the present invention is not limited to the above specific embodiment. Any obvious improvements, replacements or modifications made by technicians in this field on the basis of the present invention are within the scope of protection of the present invention.

Claims

1. A heat exchange device for recycling waste heat, characterized in that: The invention comprises an air cylinder (1) and a water inlet member (2), wherein an air jet plate (12) is horizontally fixed on the top of the outer circumferential surface of the air cylinder (1), and an air jet rod is vertically penetrated through the circumferential surface of the air cylinder (1) on the bottom surface of the air jet plate (12) and is connected and fixed thereto, and an exhaust pipe (15) is horizontally communicated and fixed to the bottom of one end of the air cylinder (1), and the water inlet member (2) comprises a water guide cylinder (21), which is horizontally arranged inside the air cylinder (1), and a connecting pipe (211) is horizontally communicated and fixed at both ends of the water guide cylinder (21), and the connecting pipe (211) is rotatably connected to the two end surfaces of the air cylinder (1), and a brush plate (11) is vertically fixed to the bottom side of the inner wall of the air cylinder (1), and the top surface of the brush plate (11) presses against the outer wall of the water guide cylinder (21).

2. The heat exchange device for waste heat recycling according to claim 1, characterized in that: An air intake pipe (13) is vertically connected and fixed on the top surface of the jet plate (12), and an air pump (14) is connected and fixed on the air intake pipe (13).

3. The heat exchange device for waste heat recycling according to claim 2, characterized in that: The bottom of the outer circumferential surface of the air cylinder (1) is connected to and fixed with an ash frame box (16), and a sealing cover (17) is provided at the bottom end of the ash frame box (16).

4. The heat exchange device for waste heat recycling according to claim 1, characterized in that: A plurality of convex rings (212) are transversely arranged on the outer circumferential surface of the water guide cylinder (21), and the plurality of convex rings (212) are connected and fixed on the outer circumferential surface of the water guide cylinder (21), and a plurality of corrugated ring plates (213) are transversely arranged on the inner circumferential surface of the water guide cylinder (21).

5. The heat exchange device for waste heat recycling according to claim 1, characterized in that: A water inlet pipe (22) is horizontally arranged at the end of the connecting pipe (211), and a rotating drum (23) is fixedly connected to the end of the water inlet pipe (22), and the rotating drum (23) and the connecting pipe (211) are rotatably connected via a sealed bearing.

6. The heat exchange device for waste heat recycling according to claim 1, characterized in that: A motor (18) is horizontally fixed on one end surface of the air cylinder (1), and a driving gear (19) is fixed on the output end of the motor (18).

7. The heat exchange device for waste heat recycling according to claim 6, characterized in that: A driven gear (214) is fixed on the connecting pipe (211) at one end of the water guide cylinder (21), and the driven gear (214) is meshed with the driving gear (19).

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