Catalytic combustion and heating integrated device

Abstract

The utility model discloses a catalytic combustion and heating integrated device which comprises a zeolite rotating wheel concentration device and a catalytic combustion and heating integrated structure, and the catalytic combustion and heating integrated structure comprises a shell, a first heat exchanger, a second heat exchanger, a catalytic combustion device and an auxiliary heating device, the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel. The second heat exchanger is provided with a third heat exchange channel and a fourth heat exchange channel. The first heat exchanger, the second heat exchanger, the catalytic combustion device and the auxiliary heating device are integrated in the shell, the first heat exchanger can be communicated with the auxiliary heating device in the shell, the second heat exchanger can be communicated with the catalytic combustion device in the shell, and the second heat exchanger can be communicated with the first heat exchanger in the shell, so that more pipelines do not need to be arranged; and heat waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of organic waste gas treatment equipment, in particular to a catalytic combustion and heating integrated device. Background Art

[0002] With the rapid development of the economy, the emissions of industrial waste gas are increasing day by day. In order not to pollute the environment, it is necessary to carry out corresponding catalytic combustion treatment on the generated waste gas. The commonly used catalytic combustion on the market generally supports two-stage heat exchangers and auxiliary heaters. For example, Chinese Patent Application CN2017201283647 discloses that the two-stage heat exchangers preheat the waste gas respectively and then enter the catalytic gas as desorption hot air and preheated desorption waste gas. The auxiliary heater is used to heat the desorption hot air. The auxiliary heater of this patent is not integrally designed with the heat exchanger and the catalytic combustor, which leads to many connecting pipes and is prone to heat waste. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a catalytic combustion and heating integrated device.

[0004] The catalytic combustion and heating integrated device according to the first aspect embodiment of the utility model includes a zeolite wheel concentrator and a catalytic combustion and heating integrated structure. The zeolite wheel concentrator has a waste gas inlet for introducing waste gas to be treated, an air outlet, a cooling outlet, a desorption inlet for introducing preheated waste gas, and a desorption outlet for discharging desorption waste gas. The air outlet is used for discharging purified gas, and the cooling outlet is used for discharging the gas in the cooling area of the zeolite wheel concentrator. The catalytic combustion and heating integrated structure includes a housing and a first heat exchanger, a second heat exchanger, a catalytic combustion device, and an auxiliary heating device arranged in the housing. The first heat exchanger has a first heat exchange channel and a second heat exchange channel. The second heat exchanger has a third heat exchange channel and a fourth heat exchange channel. The housing has a cooling waste gas inlet communicated with the cooling outlet, a desorption hot air outlet communicated with the desorption inlet, a desorption waste gas inlet communicated with the desorption outlet, and a waste gas discharge outlet. The cooling waste gas inlet, the first heat exchange channel, the auxiliary heating device, and the desorption hot air outlet are sequentially communicated. The desorption waste gas inlet, the third heat exchange channel, the catalytic combustion device, the fourth heat exchange channel, the second heat exchange channel, and the waste gas discharge outlet are sequentially communicated.

[0005] The integrated catalytic combustion heating device according to the embodiments of the present utility model has at least the following technical effects: by integrating the first heat exchanger, the second heat exchanger, the catalytic combustion device, and the auxiliary heating device in the housing, the space between the first heat exchanger and the auxiliary heating device, and between the second heat exchanger and the catalytic combustion device and the first heat exchanger can be communicated within the housing, thus eliminating the need for a large number of pipes and avoiding heat waste.

[0006] According to some embodiments of the present utility model, the second heat exchanger is located above the first heat exchanger, and the catalytic combustion device and the auxiliary heating device are located between the first heat exchanger and the second heat exchanger.

[0007] According to some embodiments of the present utility model, the first heat exchanger and the second heat exchanger are arranged at intervals in the left-right direction of the housing, and there is a communication channel between the first heat exchanger and the second heat exchanger, and the communication channel is respectively communicated with the outlet end of the fourth heat exchange channel and the inlet end of the second heat exchange channel.

[0008] According to some embodiments of the present utility model, both the first heat exchanger and the second heat exchanger are plate heat exchangers.

[0009] According to some embodiments of the present utility model, the outlet end of the second heat exchange channel and the inlet end of the first heat exchange channel are respectively located on the left and right sides of the first heat exchanger, and the outlet end of the first heat exchange channel and the inlet end of the second heat exchange channel are located at the top of the first heat exchanger.

[0010] According to some embodiments of the present utility model, the outlet end of the third heat exchange channel, and the inlet end and the outlet end of the fourth heat exchange channel are all located at the bottom of the second heat exchanger, and the inlet end of the third heat exchange channel is located on the left or right side of the second heat exchanger.

[0011] According to some embodiments of the present utility model, the first heat exchanger includes a plurality of first connecting plates arranged in sequence in the front-rear direction of the housing, and a first heat exchange channel is formed by enclosing between one of the first connecting plates and the first connecting plate located in front of it, and a second heat exchange channel is formed by enclosing between one of the first connecting plates and the first connecting plate located behind it;

[0012] The second heat exchanger includes a plurality of second connecting plates arranged in sequence in the front-rear direction of the housing, and a third heat exchange channel is formed by enclosing between one of the second connecting plates and the second connecting plate located in front of it, and a fourth heat exchange channel is formed by enclosing between one of the second connecting plates and the second connecting plate located behind it.

[0013] According to some embodiments of the present utility model, the first heat exchange channel, the second heat exchange channel, and the third heat exchange channel are serpentine flow channels. The fourth heat exchange channel includes a first serpentine channel and a second serpentine channel arranged in sequence in the left-right direction of the second heat exchanger. The upper end of the first serpentine channel is communicated with the upper end of the second serpentine channel. The lower end of the first serpentine channel is communicated with the catalytic combustion device. The lower end of the second serpentine channel is communicated with the communication channel.

[0014] According to some embodiments of the present utility model, the catalytic combustion heating integrated structure further includes a rain shield, and the rain shield is installed on the top of the housing.

[0015] According to some embodiments of the present utility model, a horn-shaped connector is connected to the cooling waste gas inlet, the desorption hot air outlet, the desorption waste gas inlet, and the waste gas discharge outlet.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a schematic structural diagram of the catalytic combustion heating integrated device according to an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a schematic structural diagram of the internal structure of the shown housing;

[0020] Figure 3 is a cross-sectional view of the catalytic combustion heating integrated structure at a certain place;

[0021] Figure 4 is a cross-sectional view of the catalytic combustion heating integrated structure at another place;

[0022] Figure 5 is a schematic diagram of the gas movement of the catalytic combustion heating integrated device;

[0023] Figure 6 is a schematic structural diagram of a partial first heat exchanger;

[0024] Figure 7 is a schematic structural diagram of the first heat exchange channel;

[0025] Figure 8 is a schematic structural diagram of the first heat exchange channel;

[0026] Figure 9 Schematic structural diagram of a local second heat exchanger;

[0027] Figure 10 Schematic structural diagram of a third heat exchange channel;

[0028] Figure 11 Schematic structural diagram of a fourth heat exchange channel.

[0029] Reference numerals: zeolite wheel concentrator 100, waste gas inlet 110, air outlet 120, cooling outlet 130, desorption inlet 140, desorption outlet 150, catalytic combustion heating integrated structure 200, housing 210, cooling waste gas inlet 211, desorption hot air outlet 212, desorption waste gas inlet 213, waste gas discharge outlet 214, first heat exchanger 220, first heat exchange channel 221, second heat exchange channel 222, first connecting plate 223, second heat exchanger 230, third heat exchange channel 231, fourth heat exchange channel 232, first serpentine channel 2321, second serpentine channel 2322, second connecting plate 233, catalytic combustion device 240, auxiliary heating device 250, communication channel 260, rain shield 270, connector 280. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0031] In the description of the present invention, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, the meaning of "plurality" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of the first, second, third, fourth, etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0034] Referring to Figure 1 、 2 As shown, the integrated catalytic combustion heating device according to an embodiment of the present utility model includes a zeolite wheel concentrator 100 and an integrated catalytic combustion heating structure 200. The zeolite wheel concentrator 100 has an exhaust gas inlet 110, an air outlet 120, a cooling outlet 130, a desorption inlet 140, and a desorption outlet 150; as Figure 1 、 2 、3, and 4 shown, the integrated catalytic combustion heating structure 200 includes a housing 210 and a first heat exchanger 220, a second heat exchanger 230, a catalytic combustion device 240, and an auxiliary heating device 250 disposed in the housing 210. As Figure 3 、 4 shown, the first heat exchanger 220 has a first heat exchange channel 221 and a second heat exchange channel 222, and the second heat exchanger 230 has a third heat exchange channel 231 and a fourth heat exchange channel 232. As Figure 1 shown, the side wall of the housing 210 has a cooling exhaust gas inlet 211 communicating with the cooling outlet 130, a desorption hot air outlet 212 communicating with the desorption inlet 140, a desorption exhaust gas inlet 213 communicating with the desorption outlet 150, and an exhaust gas discharge outlet 214; as Figure 3 shown, the cooling exhaust gas inlet 211, the first heat exchange channel 221, the auxiliary heating device 250, and the desorption hot air outlet 212 are sequentially communicated; as Figure 3 、 4 shown, the desorption exhaust gas inlet 213, the third heat exchange channel 231, the catalytic combustion device 240, the fourth heat exchange channel 232, the second heat exchange channel 222, and the exhaust gas discharge outlet 214 are sequentially communicated.

[0035] By integrating the first heat exchanger 220, the second heat exchanger 230, the catalytic combustion device 240, and the auxiliary heating device 250 in the housing 210, the first heat exchanger 220 and the auxiliary heating device 250, and the second heat exchanger 230 can be communicated with the catalytic combustion device 240 and the first heat exchanger 220 respectively in the housing 210, thus eliminating the need for a large number of pipelines and avoiding heat waste.

[0036] During operation, as Figure 5As shown, the exhaust gas enters the zeolite wheel concentrator 100 through the exhaust gas inlet 110. A part of the exhaust gas enters the adsorption zone of the zeolite wheel concentrator 100 for adsorption, and the purified gas is directly discharged from the air outlet 120. Another part of the exhaust gas enters the cooling zone of the zeolite wheel concentrator 100 as the cooling gas and is then discharged from the cooling outlet 130, as Figure 3 、 5 As shown, the exhaust gas enters the first heat exchange channel 221 of the first heat exchanger 220 through the cooling outlet 130 and the cooling exhaust gas inlet 211 and exchanges heat with the second heat exchange channel 222 of the first heat exchanger 220 to preheat the exhaust gas and use it as the desorption hot air. When the desorption hot air does not reach the preset temperature, the auxiliary heating device 250 is started to make the desorption hot air temperature reach the preset temperature. Among them, the heat of the second heat exchange channel 222 comes from the gas produced by the catalytic combustion device 240. The exhaust gas in the first heat exchange channel 221 is discharged from the desorption hot air outlet 212 after heat exchange and enters the zeolite wheel concentrator 100 through the desorption inlet 140 for desorption, as Figure 5 As shown, after desorption, it is discharged from the desorption outlet 150, as Figure 3 、 4 As shown, it then enters the third heat exchange channel 231 of the second heat exchanger 230 through the desorption exhaust gas inlet 213 and exchanges heat with the fourth heat exchange channel 232. After heat exchange, the exhaust gas enters the catalytic combustion device 240 for catalytic combustion. The gas produced by the catalytic combustion device 240 enters the fourth heat exchange channel 232 to exchange heat with the third heat exchange channel 231, and then enters the second heat exchange channel 222 to exchange heat with the first heat exchange channel 221. After heat exchange, the gas is discharged to the external system.

[0037] Specifically, as Figure 1 As shown, the cooling outlet 130 is connected to the cooling exhaust gas inlet 211 through a pipeline, the desorption inlet 140 is connected to the desorption hot air outlet 212 through a pipeline, and the desorption outlet 150 is connected to the desorption exhaust gas inlet 213 through a pipeline.

[0038] In some embodiments of the present invention, as Figure 3 As shown, the second heat exchanger 230 is located above the first heat exchanger 220, and the catalytic combustion device 240 and the auxiliary heating device 250 are located between the first heat exchanger 220 and the second heat exchanger 230. Through such a design, the catalytic combustion heating integrated structure 200 occupies a small space.

[0039] In a further embodiment of the present invention, as Figure 3As shown in the figure, the first heat exchanger 220 and the second heat exchanger 230 are arranged at intervals in the left-right direction of the housing 210. There is a communication channel 260 between the first heat exchanger 220 and the second heat exchanger 230. The communication channel 260 is respectively communicated with the outlet end of the fourth heat exchange channel 232 and the inlet end of the second heat exchange channel 222. By providing the communication channel 260, the exhaust gas does not interfere with the operation of the catalytic combustion device 240 and the auxiliary heating device 250, and the space between the catalytic combustion device 240 and the auxiliary heating device 250 is fully utilized.

[0040] In a further embodiment of the present invention, both the first heat exchanger 220 and the second heat exchanger 230 are plate heat exchangers, so that the catalytic combustion heating integrated structure 200 has a small volume.

[0041] In a further embodiment of the present invention, as Figure 3 、 4 shown, the outlet end of the second heat exchange channel 222 and the inlet end of the first heat exchange channel 221 are respectively located on the left and right sides of the first heat exchanger 220, which is convenient for connecting the catalytic combustion heating integrated structure 200 with the zeolite wheel concentrator 100. The outlet end of the first heat exchange channel 221 and the inlet end of the second heat exchange channel 222 are located at the top of the first heat exchanger 220, which is convenient for connecting the first heat exchange channel 221 with the auxiliary heating device 250 and for connecting the second heat exchange channel 222 with the fourth heat exchange channel 232, and the space between the catalytic combustion device 240 and the auxiliary heating device 250 is fully utilized.

[0042] In a further embodiment of the present invention, as Figure 3 、 4 shown, the outlet end of the third heat exchange channel 231, as well as the inlet end and the outlet end of the fourth heat exchange channel 232, are all located at the bottom of the second heat exchanger 230, which is convenient for connecting with the catalytic combustion device 240 and the second heat exchange channel 222. The inlet end of the third heat exchange channel 231 is located on the left or right side of the second heat exchanger 230, which is convenient for connecting the catalytic combustion heating integrated structure 200 with the zeolite wheel concentrator 100.

[0043] In a further embodiment of the present invention, as Figure 2 、 6 、7, 8 shown, the first heat exchanger 220 includes a plurality of first connecting plates 223 arranged in sequence in the front-rear direction of the housing 210. A first heat exchange channel 221 is formed by enclosing between the front side of one of the first connecting plates 223 and the first connecting plate 223 located in front of it, and a second heat exchange channel 222 is formed by enclosing between one of the first connecting plates 223 and the first connecting plate 223 located behind it;

[0044] As Figure 2 、 9As shown in FIGS. 10 and 11, the second heat exchanger 230 includes a plurality of second connecting plates 233 arranged in sequence in the front-rear direction of the housing 210. A third heat exchange channel 231 is formed by enclosing between one second connecting plate 233 and the second connecting plate 233 located in front of it, and a fourth heat exchange channel 232 is formed by enclosing between one second connecting plate 233 and the second connecting plate 233 located behind it. The heat exchanger adopts the above structure to make the catalytic combustion heating integrated structure 200 small in volume.

[0045] That is, one of the connecting plates has a serpentine flow channel. A heat exchange channel is formed by enclosing between one connecting plate and the front side surface of the connecting plate located behind it, or a heat exchange channel is formed by enclosing between one connecting plate and the rear side surface of the connecting plate located in front of it.

[0046] In a further embodiment of the present invention, as Figure 7 、 8 、11 shown, the first heat exchange channel 221, the second heat exchange channel 222 and the third heat exchange channel 231 are serpentine flow channels. As Figure 10 shown, the fourth heat exchange channel 232 includes a first serpentine channel 2321 and a second serpentine channel 2322 arranged in sequence in the left-right direction of the second heat exchanger 230. The upper end of the first serpentine channel 2321 is communicated with the upper end of the second serpentine channel 2322. The lower end of the first serpentine channel 2321 is communicated with the catalytic combustion device 240, and the lower end of the second serpentine channel 2322 is communicated with the communication channel 260. The first heat exchange channel 221 can fully exchange heat with the second heat exchange channel 222, and the third heat exchange channel 231 can fully exchange heat with the fourth heat exchange channel 232.

[0047] In some embodiments of the present invention, as Figure 3 shown, the catalytic combustion heating integrated structure 200 further includes a rain shield 270. The rain shield 270 is installed on the top of the housing 210 to prevent rain from affecting the devices inside the housing 210.

[0048] In some embodiments of the present invention, as Figure 3 described, a horn-shaped connector 280 is connected to the cooling waste gas inlet 211, the desorption hot air outlet 212, the desorption waste gas inlet 213 and the waste gas discharge outlet 214 to facilitate the entry and exit of gas.

[0049] In the description of this specification, the descriptions referring to terms such as "some embodiments" or "it is conceivable that" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0050] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A catalytic combustion and heating integrated device, the zeolite rotor concentrator has a waste gas inlet for introducing waste gas to be treated, a gas outlet, a cooling outlet, a desorption inlet for introducing preheated waste gas and a desorption outlet for discharging desorbed waste gas, the gas outlet is used to discharge the purified gas, the cooling outlet is used to discharge the gas in the cooling zone of the zeolite rotor concentrator, characterized in that: include: A catalytic combustion and heating integrated structure, comprising a shell and a first heat exchanger, a second heat exchanger, a catalytic combustion device and an auxiliary heating device arranged in the shell, the first heat exchanger having a first heat exchange channel and a second heat exchange channel, the second heat exchanger having a third heat exchange channel and a fourth heat exchange channel, the shell having a cooling exhaust gas inlet connected to the cooling outlet, a desorption hot air outlet connected to the desorption inlet, a desorption exhaust gas inlet connected to the desorption outlet, and an exhaust gas discharge outlet; The cooling exhaust gas inlet, the first heat exchange channel, the auxiliary heating device and the desorption hot air outlet are connected in sequence; The desorbed exhaust gas inlet, the third heat exchange channel, the catalytic combustion device, the fourth heat exchange channel, the second heat exchange channel and the exhaust gas discharge outlet are connected in sequence.

2. The catalytic combustion and heating integrated device according to claim 1, characterized in that: The second heat exchanger is located above the first heat exchanger, and the catalytic combustion device and the auxiliary heating device are located between the first heat exchanger and the second heat exchanger.

3. The catalytic combustion and heating integrated device according to claim 2, characterized in that: The first heat exchanger and the second heat exchanger are arranged at intervals along the left-right direction of the shell, and a communication channel is provided between the first heat exchanger and the second heat exchanger, and the communication channel is respectively connected to the outlet end of the fourth heat exchange channel and the inlet end of the second heat exchange channel.

4. The catalytic combustion and heating integrated device according to any one of claims 1 to 3, characterized in that: The first heat exchanger and the second heat exchanger are both plate heat exchangers.

5. The catalytic combustion and heating integrated device according to claim 3 is characterized in that: The outlet end of the second heat exchange channel and the inlet end of the first heat exchange channel are respectively located on the left and right sides of the first heat exchanger, and the outlet end of the first heat exchange channel and the inlet end of the second heat exchange channel are located on the top of the first heat exchanger.

6. The catalytic combustion and heating integrated device according to claim 3, characterized in that: The outlet end of the third heat exchange channel and the inlet end and outlet end of the fourth heat exchange channel are all located at the bottom of the second heat exchanger, and the inlet end of the third heat exchange channel is located on the left or right side of the second heat exchanger.

7. The catalytic combustion and heating integrated device according to claim 3 is characterized in that: The first heat exchanger comprises a plurality of first connecting plates sequentially arranged along the front-to-rear direction of the shell, wherein one of the first connecting plates and the first connecting plate located at the front side thereof encloses the first heat exchange channel, and one of the first connecting plates and the first connecting plate located at the rear side thereof encloses the second heat exchange channel; The second heat exchanger includes a plurality of second connecting plates sequentially arranged along the front-to-rear direction of the shell, wherein one of the second connecting plates and the second connecting plate located in front of it form the third heat exchange channel, and one of the second connecting plates and the second connecting plate located in the rear of it form the fourth heat exchange channel.

8. The catalytic combustion and heating integrated device according to claim 7, characterized in that: The first heat exchange channel, the second heat exchange channel and the third heat exchange channel are serpentine flow channels, and the fourth heat exchange channel includes a first serpentine channel and a second serpentine channel arranged in sequence along the left and right directions of the second heat exchanger, the upper end of the first serpentine channel is connected to the upper end of the second serpentine channel, the lower end of the first serpentine channel is connected to the catalytic combustion device, and the lower end of the second serpentine channel is connected to the connecting channel.

9. The catalytic combustion and heating integrated device according to claim 1, characterized in that: The catalytic combustion and heating integrated structure also includes a rain shield, which is installed on the top of the shell.

10. The catalytic combustion and heating integrated device according to claim 1, characterized in that: The cooling waste gas inlet, the desorption hot air outlet, the desorption waste gas inlet and the waste gas discharge outlet are all connected with a trumpet-shaped connector.

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