Heat exchange device applied to zeolite adsorption rotating wheel

Abstract

The utility model relates to the technical field of heat exchange of waste gas treatment equipment, in particular to a heat exchange device applied to a zeolite adsorption rotating wheel, which comprises a disc-type main housing and a zeolite rotating wheel arranged in the disc-type main housing, and a lateral waste gas inlet pipe and a lateral desorption pipe are arranged on the left side wall of the disc-type main housing. According to the heat exchange device applied to the zeolite adsorption rotating wheel, heat of a desorption opening and heat generated by a catalytic furnace are recycled, so that the temperature of desorption air is greatly increased, and the energy consumption cost is reduced; by adopting a heat exchange mode of inner and outer side layout, the heat exchange efficiency in the air inlet pipeline can be greatly improved; and a multi-layer layout design is adopted, so that the space utilization rate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange of waste gas treatment equipment, in particular to a heat exchange device applied to a zeolite adsorption wheel. Background Art

[0002] At present, the mainstream treatment technologies for volatile organic waste gas in China mainly include condensation method, adsorption method, absorption method, thermal storage combustion method, catalytic combustion method and liquid incineration method. Among them, rotary concentration + catalytic combustion method + thermal energy utilization is the most common organic waste gas treatment solution. The zeolite rotary wheel can effectively adsorb and filter the waste gas and recycle the heat energy for reuse. Then, the heat generated by the catalytic oxidation device is used for desorption operation, and the high-concentration organic components after desorption are completely oxidized and decomposed, ensuring that the waste gas can be safely and stably catalytically oxidized and treated to meet the emission standards.

[0003] However, the current heat exchange method for zeolite desorption is relatively simple, resulting in low thermal energy utilization and the inability to control the heat exchange area. Utility Model Content

[0004] The technical problem to be solved by the utility model is that: currently the heat exchange method in the zeolite desorption process is relatively single, resulting in low thermal energy utilization rate, and the heat exchange area cannot be adjusted.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a heat exchange device applied to a zeolite adsorption wheel, comprising a disc-type main cover and a zeolite wheel installed inside the disc-type main cover, a lateral exhaust gas intake pipe and a lateral desorption pipe are installed on the left side wall of the disc-type main cover, a clean air exhaust pipe and a desorption intake pipe are installed on the right side wall of the disc-type main cover, a lateral regulating heat exchange pipe is fixedly installed at the connecting end of the lateral desorption pipe and the disc-type main cover, a lateral internal flux elastic regulating valve is elastically installed inside the lateral regulating heat exchange pipe, and a desorption heat exchange pipe is installed between the clean air exhaust pipe and the desorption intake pipe.

[0006] An internal heat exchange channel with a spiral structure is provided inside the inner wall of the lateral control heat exchange tube.

[0007] The lateral internal flux elastic regulating valve comprises an internal telescopic piston installed inside the lateral regulating heat exchange tube and an extrusion spring installed on the side wall of the internal telescopic piston.

[0008] The desorption heat exchange tube comprises a transverse air guide tube, an internal heat exchange tube fixed inside the transverse air guide tube, and an external heat exchange tube fixed outside the transverse air guide tube.

[0009] The external heat exchange tube is fixedly connected with the inlet and outlet of the internal heat exchange flow channel through the external guide tube.

[0010] The upper air outlet of the built-in heat exchange tube is fixedly connected to the inside of the clean gas exhaust pipe through an external exhaust pipe, and the upper air inlet of the built-in heat exchange tube is fixedly connected to an external inlet pipe for connecting to the exhaust port of the catalytic oxidation furnace.

[0011] The beneficial effects of the utility model are:

[0012] (1) A heat exchange device applied to a zeolite adsorption wheel of the utility model recycles the heat of the desorption port and the heat generated by the catalytic furnace, thereby greatly increasing the temperature of the desorption air and reducing the energy consumption cost;

[0013] (2) The heat exchange method of the inner and outer layout can greatly improve the heat exchange efficiency inside the intake duct;

[0014] (3) The multi-layer layout design can improve space utilization;

[0015] (4) The internal wind pressure is used to control the expansion and contraction of the lateral internal flux elastic regulating valve, thereby adjusting the heat exchange area of ​​the internal heat exchange flow channel of the spiral structure, which makes the control more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is an internal partial schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Figure 1 and Figure 2A heat exchange device applied to a zeolite adsorption wheel is shown, comprising a disc-type main cover 1 and a zeolite wheel installed inside the disc-type main cover 1, a lateral exhaust gas intake pipe 3 and a lateral desorption pipe 4 are installed on the left side wall of the disc-type main cover 1, a clean air exhaust pipe 5 and a desorption intake pipe 6 are installed on the right side wall of the disc-type main cover 1, a lateral regulating heat exchange pipe 7 is fixedly installed at the connecting end of the lateral desorption pipe 4 and the disc-type main cover 1, a lateral internal flux elastic regulating valve 8 is elastically installed inside the lateral regulating heat exchange pipe 7, and a desorption heat exchange pipe 9 is installed between the clean air exhaust pipe 5 and the desorption intake pipe 6.

[0022] In order to perform heat exchange on the temperature of the desorption port, an internal heat exchange channel 10 with a spiral structure is opened inside the inner wall of the lateral control heat exchange tube 7 .

[0023] In order to adjust the heat exchange area of ​​the internal heat exchange channel 10 , the lateral internal flux elastic regulating valve 8 includes an internal telescopic piston 81 installed inside the lateral regulating heat exchange tube 7 and a compression spring 82 installed on the side wall of the internal telescopic piston 81 .

[0024] The organic waste gas is introduced into the lateral regulating heat exchange tube 7, and the internal telescopic piston 81 is driven by the internal wind pressure to slide and adjust inside the lateral regulating heat exchange tube 7, thereby increasing the heat exchange area between the internal high-temperature air and the internal heat exchange channel 10, and then the organic waste gas is introduced from the lateral desorption tube 4 into the catalytic oxidation furnace for waste gas treatment.

[0025] In order to coordinate air conduction and heat exchange, the desorption heat exchange tube 9 includes a transverse air conduction tube 91 , an internal heat exchange tube 92 fixed inside the transverse air conduction tube 91 , and an external heat exchange tube 93 fixed outside the transverse air conduction tube 91 .

[0026] The horizontal air duct 91 draws air inside the clean air exhaust pipe 5 through a desorption air pump at the connection end with the clean air exhaust pipe 5, and then heats and guides the air through the horizontal air duct 91 and blows it toward the desorption air inlet pipe 6 at high speed to desorb the organic matter inside the zeolite wheel 2, and then drives the high-concentration organic waste gas to be introduced from the lateral desorption pipe 4 into the catalytic oxidation furnace for treatment.

[0027] In order to cooperate with heat energy exchange, the external heat exchange tube 93 is fixedly connected to the inlet and outlet of the internal heat exchange channel 10 through the external guide tube 11.

[0028] In order to improve the heat exchange efficiency, a circulating water pump may be installed inside the external guide tube 11 to quickly circulate the heat exchange fluid located in the internal heat exchange channel 10 , the external heat exchange tube 93 and the external guide tube 11 .

[0029] In order to cooperate with the diversion, the upper air outlet of the built-in heat exchange tube 92 is fixedly connected to the inside of the clean air exhaust pipe 5 through the external discharge pipe 12, and the upper air inlet of the built-in heat exchange tube 92 is fixedly connected to the external inlet pipe 13 for connecting to the exhaust port of the catalytic oxidation furnace.

[0030] The high-temperature air generated inside the catalytic oxidation furnace is introduced into the built-in heat exchange tube 92 through the external inlet pipe 13, and then undergoes internal heat exchange inside the built-in heat exchange tube 92 to heat the internal air, and then is introduced into the clean air exhaust pipe 5 from the external exhaust pipe 12.

[0031] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A heat exchange device for a zeolite adsorption rotor, comprising a disc-shaped main casing (1) and a zeolite rotor installed inside the disc-shaped main casing (1), wherein: A lateral exhaust gas intake pipe (3) and a lateral desorption pipe (4) are installed on the left side wall of the disc-type main cover (1), and a clean gas exhaust pipe (5) and a desorption intake pipe (6) are installed on the right side wall of the disc-type main cover (1). A lateral regulating heat exchange pipe (7) is fixedly installed at the connection end between the lateral desorption pipe (4) and the disc-type main cover (1), and a lateral internal flux elastic regulating valve (8) is elastically installed inside the lateral regulating heat exchange pipe (7). A desorption heat exchange pipe (9) is installed between the clean gas exhaust pipe (5) and the desorption intake pipe (6).

2. A heat exchange device for a zeolite adsorption wheel according to claim 1, characterized in that: An internal heat exchange flow channel (10) with a spiral structure is provided inside the inner tube wall of the lateral control heat exchange tube (7).

3. A heat exchange device for a zeolite adsorption rotor according to claim 1, characterized in that: The lateral internal flux elastic regulating valve (8) comprises an internal telescopic piston (81) installed inside the lateral regulating heat exchange tube (7) and a compression spring (82) installed on the side wall of the internal telescopic piston (81).

4. A heat exchange device for a zeolite adsorption rotor according to claim 2, characterized in that: The desorption heat exchange tube (9) comprises a transverse air guide tube (91), an internal heat exchange tube (92) fixed inside the transverse air guide tube (91), and an external heat exchange tube (93) fixed outside the transverse air guide tube (91).

5. A heat exchange device for a zeolite adsorption wheel according to claim 4, characterized in that: The external heat exchange tube (93) is fixedly connected to the inlet and outlet of the internal heat exchange flow channel (10) respectively through the external flow guide tube (11).

6. A heat exchange device for a zeolite adsorption rotor according to claim 4, characterized in that: The upper air outlet of the built-in heat exchange tube (92) is fixedly connected to the inside of the clean air exhaust pipe (5) via an external exhaust pipe (12), and the upper air inlet of the built-in heat exchange tube (92) is fixedly connected to an external inlet pipe (13) for connecting to the exhaust port of the catalytic oxidation furnace.

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