Waste heat recoverer of waste gas catalytic combustion treatment equipment

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recoverer of waste gas catalytic combustion treatment equipment, which comprises a cold air pipe, a heat exchange pipe and a recovery pipe, one side of the cold air pipe is provided with a gas guide pipe communicated with the recovery pipe, one side of the heat exchange pipe is communicated with a waste gas inlet pipe, the inner side of the heat exchange pipe is provided with a clamping groove, and the clamping groove is communicated with the recovery pipe. A clamping groove is formed in the upper portion of the heat exchange tube, an arc-shaped clamping block is connected to the inner side of the clamping groove in a clamped mode, and an arc-shaped adsorption plate is fixedly connected to one side of the arc-shaped clamping block, the arc-shaped adsorption plate is installed through a structure composed of the clamping groove, the arc-shaped clamping block, the arc-shaped adsorption plate and the like, and the arc-shaped adsorption plate is clamped between the cold air tube and the heat exchange tube; substances in the waste gas subjected to waste heat recovery can be adsorbed through the arc-shaped adsorption plate, and then the waste gas is discharged out of the heat exchange pipe, so that the waste gas is further treated, and the discharged waste gas can be cleaner.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery device for waste gas catalytic combustion treatment equipment. Background Art

[0002] In the process of industrial production, some waste gas is usually generated to realize product production. In order to make the waste gas meet the emission standards, catalytic combustion is usually used to process the waste gas. In fact, the waste gas itself will release a lot of heat during the catalytic combustion process, and the waste gas will carry a lot of heat after being discharged, which requires harmless cooling treatment again. This not only increases the cost of waste gas treatment, but also leads to secondary consumption of energy. Therefore, the waste heat recovery device of the waste gas catalytic combustion treatment equipment is born, and the waste heat of the waste gas after catalytic combustion is recovered by the waste heat recovery device of the waste gas catalytic combustion treatment equipment.

[0003] The waste gas after waste heat recovery in the public utility patent "CN216814195U, a waste heat recovery device for waste gas catalytic combustion treatment equipment" will be discharged from one end of the heat exchange tube. There may still be some impurities in the waste gas after waste heat recovery. Therefore, in view of the above problem, a waste heat recovery device for waste gas catalytic combustion treatment equipment is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a waste heat recovery device for waste gas catalytic combustion treatment equipment to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waste heat recovery device for exhaust gas catalytic combustion treatment equipment comprises a cold air duct, a heat exchange pipe and a recovery pipe, wherein an air guide pipe connected to the recovery pipe is arranged on one side of the cold air duct, an exhaust gas inlet pipe is connected on one side of the heat exchange pipe, an air outlet pipe is connected on one side of the recovery pipe, a main spiral heat conducting plate for conducting heat of the gas entering the heat exchange pipe is fixedly connected to the outer side of the heat exchange pipe, a fan is installed at one end of the cold air duct, a pressure relief valve is installed at the end of the cold air duct away from the fan, a secondary spiral heat conducting plate is fixedly connected to the outer side of the heat exchange pipe, a card slot is opened on the inner side of the heat exchange pipe, an arc-shaped card block is card-engaged on the inner side of the card slot, and an arc-shaped adsorption plate is fixedly connected to one side of the arc-shaped card block.

[0007] Preferably, the arc-shaped clamping block is fixedly connected to a positioning plate on one side away from the arc-shaped adsorption plate, a first screw hole with an equal aperture is opened on the inner side of the positioning plate, a bolt is arranged on the inner side of the first screw hole, and a second screw hole with an equal aperture is opened on the inner side of the heat exchange tube.

[0008] Preferably, the aperture size of the second screw hole is equal to the aperture size of the first screw hole, and one end of the bolt is arranged on the inner side of the second screw hole.

[0009] Preferably, the arc-shaped adsorption plates are symmetrically arranged, and the arc-shaped adsorption plates are sleeved on the outside of the cold air duct.

[0010] Preferably, the heat exchange tube is sleeved on the outside of the cold air tube, and the recovery tube is sleeved on the outside of the heat exchange tube.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, the arc-shaped adsorption plate is installed through a structure composed of a card slot, an arc-shaped card block and an arc-shaped adsorption plate, and the arc-shaped adsorption plate is clamped between the cold air pipe and the heat exchange pipe. The waste gas that has completed the waste heat recovery will first pass through the arc-shaped adsorption plate to adsorb the substances therein, and then be discharged from the heat exchange pipe. The waste gas is further processed so that the discharged waste gas can be cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 This is a schematic diagram of the installation structure of the arc-shaped adsorption plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the positioning plate of the utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the heat exchange tube of the utility model.

[0018] In the figure: 1. cold air duct; 101. air guide duct; 2. heat exchange tube; 201. exhaust gas inlet pipe; 3. recovery pipe; 301. air outlet duct; 4. main spiral heat conductive plate; 5. pressure relief valve; 6. auxiliary spiral heat conductive plate; 7. slot; 8. arc-shaped block; 9. arc-shaped adsorption plate; 10. positioning plate; 11. first screw hole; 12. bolt; 13. second screw hole; 14. fan. DETAILED DESCRIPTION

[0019] 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.

[0020] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model 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, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] A waste heat recovery device for exhaust gas catalytic combustion treatment equipment comprises a cold air pipe 1, a heat exchange pipe 2 and a recovery pipe 3, an air guide pipe 101 connected to the recovery pipe 3 is arranged on one side of the cold air pipe 1, an exhaust gas inlet pipe 201 is connected to one side of the heat exchange pipe 2, an air outlet pipe 301 is connected to one side of the recovery pipe 3, a main spiral heat conducting plate 4 for conducting heat of the gas entering the heat exchange pipe 2 is fixedly connected to the outer side of the heat exchange pipe 2, a fan 14 is installed at one end of the cold air pipe 1, a pressure relief valve 5 is installed at the end of the cold air pipe 1 away from the fan 14, a secondary spiral heat conducting plate 6 is fixedly connected to the outer side of the heat exchange pipe 2, a card slot 7 is opened on the inner side of the heat exchange pipe 2, an arc-shaped card block 8 is card-engaged with the inner side of the card slot 7, and an arc-shaped adsorption plate 9 is fixedly connected to one side of the arc-shaped card block 8.

[0027] A positioning plate 10 is fixedly connected to the side of the arc-shaped clamping block 8 away from the arc-shaped adsorption plate 9. A first screw hole 11 with an equal aperture is provided on the inner side of the positioning plate 10. A bolt 12 is provided on the inner side of the first screw hole 11. A second screw hole 13 with an equal aperture is provided on the inner side of the heat exchange tube 2. This arrangement allows the arc-shaped adsorption plate 9 to be installed through the arc-shaped clamping block 8, and makes it easy to disassemble and install the arc-shaped adsorption plate 9; the aperture size of the second screw hole 13 is equal to the aperture size of the first screw hole 11, and the bolt 12 is provided on the inner side of the first screw hole 11. One end of the bolt 12 is arranged on the inner side of the second screw hole 13. This arrangement allows the bolt 12 to penetrate the first screw hole 11 and the second screw hole 13 at the same time; the arc adsorption plate 9 is symmetrically arranged, and the arc adsorption plate 9 is sleeved on the outer side of the cold air pipe 1. This arrangement allows the exhaust gas that can circulate between the cold air pipe 1 and the heat exchange pipe 2 to be adsorbed; the heat exchange pipe 2 is sleeved on the outer side of the cold air pipe 1, and the recovery pipe 3 is sleeved on the outer side of the heat exchange pipe 2. This arrangement allows the cold air pipe 1, the heat exchange pipe 2 and the recovery pipe 3 to be positioned.

[0028] Working process: when the waste heat recovery device of the exhaust gas catalytic combustion treatment equipment is used to recover the waste heat of the exhaust gas of the exhaust gas catalytic combustion treatment equipment, the exhaust gas inlet pipe 201 is connected with the exhaust gas outlet of the exhaust gas catalytic combustion treatment equipment, and the air outlet pipe 301 is connected with the air inlet of the exhaust gas catalytic combustion treatment equipment. The exhaust gas generated after catalytic combustion will enter the heat exchange tube 2 through the exhaust gas inlet pipe 201 and circulate therein, and in a spiral motion under the restriction of the main spiral heat conductive sheet 4, the main spiral heat conductive sheet 4 extracts heat to form a heat exchange between the cold air pipe 1 and the heat exchange tube 2, and the fan 14 replenishes cold air into the cold air pipe 1. The cold air circulates inside the cold air pipe 1 and absorbs heat from the pipe wall, and then enters the recovery pipe 3 through the air guide pipe 101. While flowing in the recovery pipe 3, it absorbs heat from the outer wall of the heat exchange tube 2 again. The secondary spiral heat conductive sheet 6 between the outer wall of the heat exchange tube 2 and the inner wall of the recovery tube 3 can further improve the heat exchange efficiency. The cold air is heated again to achieve heating treatment of the cold air, and finally enters the exhaust gas inlet of the exhaust gas catalytic combustion treatment equipment from the air outlet pipe 301 to achieve waste heat recovery of the exhaust gas, wherein the pressure relief valve 5 is opened when the internal pressure of the device is too high or the temperature is too high, and is used to quickly relieve pressure or quickly send external cold air to the center of the equipment to achieve rapid cooling, and the waste gas after waste heat recovery will flow to the arc adsorption plate 9, and the arc adsorption plate 9 will further adsorb the attached substances therein, and then discharge them, so that the waste gas is cleaner; when the arc adsorption plate 9 is to be replaced or cleaned, the bolt 12 is disengaged from the second screw hole 13 and the first screw hole 11 in turn, the limit of the positioning plate 10 is cancelled, and then the positioning plate 10 is dragged, so that the positioning plate 10 pulls the arc block 8 out of the slot 7, until the arc adsorption plate 9 is also out of the slot 7, that is, the disassembly of the arc adsorption plate 9 is completed, and the installation of the arc adsorption plate 9 can be achieved by reverse operation.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a waste gas catalytic combustion treatment device, comprising a cold air pipe (1), a heat exchange pipe (2) and a recovery pipe (3), characterized in that: An air guide pipe (101) connected to the recovery pipe (3) is arranged on one side of the cold air pipe (1), an exhaust gas inlet pipe (201) is connected to one side of the heat exchange pipe (2), an air outlet pipe (301) is connected to one side of the recovery pipe (3), a main spiral heat conducting plate (4) for conducting heat away from the gas entering the heat exchange pipe (2) is fixedly connected to the outer side of the heat exchange pipe (2), a fan (14) is installed at one end of the cold air pipe (1), a pressure relief valve (5) is arranged at one end of the cold air pipe (1) away from the fan (14), a secondary spiral heat conducting plate (6) is fixedly connected to the outer side of the heat exchange pipe (2), a slot (7) is provided on the inner side of the heat exchange pipe (2), an arc-shaped block (8) is snap-connected to the inner side of the slot (7), and an arc-shaped adsorption plate (9) is fixedly connected to one side of the arc-shaped block (8).

2. The waste heat recovery device of the exhaust gas catalytic combustion treatment equipment according to claim 1 is characterized in that: A positioning plate (10) is fixedly connected to a side of the arc-shaped clamping block (8) away from the arc-shaped adsorption plate (9); a first screw hole (11) with an equal diameter is provided on the inner side of the positioning plate (10); a bolt (12) is provided on the inner side of the first screw hole (11); and a second screw hole (13) with an equal diameter is provided on the inner side of the heat exchange tube (2).

3. The waste heat recovery device of the exhaust gas catalytic combustion treatment equipment according to claim 2 is characterized in that: The diameter of the second screw hole (13) is equal to the diameter of the first screw hole (11), and one end of the bolt (12) is arranged inside the second screw hole (13).

4. The waste heat recovery device of the exhaust gas catalytic combustion treatment equipment according to claim 1 is characterized in that: The arc-shaped adsorption plates (9) are symmetrically arranged, and the arc-shaped adsorption plates (9) are sleeved on the outside of the cold air pipe (1).

5. The waste heat recovery device of the exhaust gas catalytic combustion treatment equipment according to claim 1 is characterized in that: The heat exchange tube (2) is sleeved on the outside of the cold air tube (1), and the recovery tube (3) is sleeved on the outside of the heat exchange tube (2).

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