CN218501667U - Waste gas adsorption catalysis system - Google Patents

Abstract

An exhaust gas adsorption catalytic system, which includes an adsorption device and a catalytic device, the adsorption device includes an adsorption housing (20), an activated carbon laying box (21), a honeycomb carrier plate (22) and a group of honeycomb activated carbon (23), the adsorption housing (20) The top is provided with an air outlet, the bottom of the adsorption housing (20) is provided with an air inlet, the activated carbon laying box (21) is installed in the adsorption housing (20), and the bottom of the activated carbon laying box (21) is provided with a breathable mesh, An activated carbon particle layer is laid on the breathable net, and the honeycomb bearing plate (22) is installed in the adsorption shell (20) and above the activated carbon laying box (21); the advantage is that the granular activated carbon and the honeycomb activated carbon are used for simultaneous adsorption, and the replacement of activated carbon is convenient , reducing the labor intensity of workers. The waste heat of the reacted gas can be fully utilized, the waste gas is completely burned, energy is saved, and the effective removal rate of the waste gas is high.

Description

An exhaust gas adsorption catalytic system

technical field

The utility model relates to the field of exhaust gas treatment equipment, in particular to an exhaust gas adsorption catalytic system.

Background technique

At present, cleaner production is a new and creative idea, which continuously applies the overall preventive environmental strategy to production processes, products and services to increase ecological efficiency and reduce human and environmental risks. According to the production characteristics of enterprises, the promotion of cleaner production is an effective means to improve the effect of waste gas treatment. On the one hand, it can solve the problem of a large amount of pollutant discharge and reduce pollutants from the source. On the other hand, the loss of useful chemical raw materials is also reduced to obtain economic benefits. For cleaner production, the most important thing is to improve the production process of the enterprise through technological transformation. Due to the poor plasticity of activated carbon in ordinary activated carbon adsorption boxes, the activated carbon adsorption layer is mostly made into a plane, the utilization rate of the space layout of the box is not high, the total adsorption area is small, and the replacement of activated carbon is inconvenient. The exhaust gas adsorbed by activated carbon needs to be heated by a heater to the combustion reaction temperature, and then sent to the catalyst for reaction to form carbon dioxide and water. The existing exhaust gas catalytic combustion device lacks a heat secondary utilization device, and the heat is wasted. Not enough.

Utility model content

The purpose of this utility model is to provide an exhaust gas adsorption catalytic system for the above-mentioned deficiencies.

The utility model comprises an adsorption device and a catalytic device,

The adsorption device includes an adsorption shell, an activated carbon laying box, a honeycomb carrier plate and a set of honeycomb activated carbon,

The top of the adsorption housing is provided with an air outlet, and the bottom of the adsorption housing is provided with an air inlet. The activated carbon laying box is installed in the adsorption housing. In the adsorption shell and above the activated carbon laying box, there are multiple groups of air holes on the honeycomb carrier plate, and a group of activated carbon limiting grooves are arranged in sequence on the honeycomb carrier plate, and a group of honeycomb activated carbon is placed in the corresponding activated carbon limiting groove;

Catalytic devices include gas heat exchangers, electric heaters, catalytic reactors and fans,

One end of the gas heat exchanger is provided with an air inlet, the air inlet is provided with a flame arrester, and the other end of the gas heat exchanger is provided with an air outlet, and the air outlet of the gas heat exchanger passes through the pipe and the inlet on the shell of the electric heater. The gas port is connected, the gas outlet of the electric heater is connected with the gas inlet at the bottom of the catalytic reactor, the upper gas outlet of the catalytic reactor is connected with the gas inlet at the top of the gas heat exchanger through a pipe, and the gas heat exchanger The air outlet is connected to the air suction port of the fan through a pipe, and the air outlet of the fan is provided with an exhaust pipe;

The gas outlet of the adsorption shell communicates with the gas inlet of the gas heat exchanger.

An inspection door is provided on the side wall of the adsorption housing; drawer slide rails are respectively provided on both sides of the activated carbon laying box, and are installed in the adsorption housing through the drawer slide rails, and a drawer handle is provided at the end of the activated carbon laying box.

The two sides of the honeycomb bearing plate are respectively provided with drawer slide rails, and are installed in the adsorption housing through the drawer slide rails, and the ends of the honeycomb bearing plate are provided with drawer handles.

The activated carbon limiting groove is composed of four side plates, and a pair of oblong holes are arranged on the side plates. The activated carbon limiting groove is welded on the honeycomb carrier plate; the air mesh is a stainless steel sintered mesh plate; the air outlet and the air inlet of the adsorption shell Pneumatic gate valves are installed on the ports respectively.

The top and bottom of the adsorption housing are both in the shape of a truncated cone; the bottom of the adsorption housing is provided with a supporting frame.

The flame arrester is a dust removal flame arrester, and the dust removal flame arrester is connected with the inlet flange of the gas heat exchanger.

The electric heater includes a cylinder body and a group of electric heating tubes. A group of electric heating tubes are arranged and installed on the tube base in sequence. A group of electric heating tubes are inserted into the cylinder body, and the tube base is sealed and installed at the end of the cylinder body.

The gas heat exchanger includes a tank body, a pair of heads, a set of heat exchange pipes and a pair of clamps. Both ends of the tank body are open, and there are pipe fixing plates in the openings. Between a pair of pipe fixing plates, the tank body and a pair of heads are respectively connected by flanges and locked by clamps.

A group of guide protrusions are evenly distributed on the inner wall of the tank, and a group of guide grooves are arranged on the head to cooperate with the guide protrusions.

The fan is a centrifugal exhaust fan; a set of baffles are arranged in sequence in the gas heat exchanger; a valve is arranged at the inlet end of the flame arrester.

The utility model has the advantages that the granular activated carbon and the honeycomb activated carbon are used for simultaneous adsorption, the replacement of the activated carbon is convenient, and the labor intensity of workers is reduced. The waste heat of the reacted gas can be fully utilized, the waste gas is completely burned, energy is saved, and the effective removal rate of the waste gas is high.

Description of drawings

Fig. 1 is a schematic structural view of the adsorption device of the present invention.

Fig. 2 is a structural schematic diagram of the hidden part of the adsorption housing of the adsorption device of the present invention.

Fig. 3 is a schematic diagram of the explosion structure of the adsorption device of the present invention.

Fig. 4 is a structural schematic diagram of the catalytic device of the present invention.

Fig. 5 is a schematic structural view of the gas heat exchanger of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. In the description of the embodiments of the present invention, it should be noted that if the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" etc. appear, it is based on the orientation or positional relationship shown in the drawings , or the orientation or positional relationship that the product of the invention is usually placed in use 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 or be constructed in a specific orientation and operation, and therefore should not be construed as limiting the invention. In addition, if the terms "first", "second" and the like appear in the description of the present invention, they are only used to distinguish the description, and should not be understood as indicating or implying relative importance. In the description of the embodiments of the present invention, it should also be noted that, unless otherwise specified and limited, the terms "setting" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or an optional connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in the accompanying drawings, the utility model includes an adsorption device and a catalytic device,

The adsorption device includes an adsorption housing 20, an activated carbon laying box 21, a honeycomb carrier plate 22 and a group of honeycomb activated carbon 23,

The top of the adsorption housing 20 is provided with an air outlet, and the bottom of the adsorption housing 20 is provided with an air inlet. The activated carbon laying box 21 is installed in the adsorption housing 20. The bottom of the activated carbon laying box 21 is provided with a breathable mesh, and the breathable mesh is covered with a layer of activated carbon particles. , the honeycomb carrier plate 22 is installed in the adsorption housing 20, and is located above the activated carbon laying box 21, and there are many groups of air holes on the honeycomb carrier plate 22, and a group of activated carbon limiting grooves 24 are arranged in sequence on the honeycomb carrier plate 22, one The group of honeycomb activated carbon 23 is placed in the corresponding activated carbon limiting groove 24;

The catalytic device comprises a gas heat exchanger 30, an electric heater 31, a catalytic reactor 32 and a fan 33,

One end of the gas heat exchanger 30 is provided with an air inlet, the air inlet is provided with a flame arrester 34, and the other end of the gas heat exchanger 30 is provided with an air outlet, and the air outlet of the gas heat exchanger 30 passes through the pipeline and the electric heater 31 The air inlet on the housing is connected, the air outlet of the electric heater 31 is connected with the air inlet at the bottom of the catalytic reactor 32, and the upper air outlet of the catalytic reactor 32 is connected with the air inlet at the top of the gas heat exchanger 30 through a pipeline. The mouth is connected, and the air outlet of the gas heat exchanger 30 is connected with the air extraction port of the fan 33 through a pipeline, and the air outlet of the fan 33 is provided with an exhaust pipe;

The gas outlet of the adsorption shell 20 communicates with the gas inlet of the gas heat exchanger 30 .

The side wall of the adsorption housing 20 is provided with an inspection door 25; the two sides of the activated carbon laying box 21 are respectively provided with drawer slide rails, and are installed in the adsorption housing 20 through the drawer slide rails, and the end of the activated carbon laying box 21 is provided with a drawer handle .

The two sides of the honeycomb bearing plate 22 are provided with drawer slide rails respectively, and are installed in the adsorption housing 20 through the drawer slide rails. The ends of the honeycomb bearing plate 22 are provided with drawer handles.

The activated carbon limiting groove 24 is composed of four side plates, and a pair of oblong holes are arranged on the side plates. The activated carbon limiting groove 24 is welded on the honeycomb carrier plate 22; the breathable mesh is a stainless steel sintered mesh plate; Pneumatic gate valves are respectively arranged on the air port and the air inlet.

The top and bottom of the adsorption housing 20 are both in the shape of a truncated cone; the bottom of the adsorption housing 20 is provided with a support frame.

The flame arrester 34 is a dust removal flame arrester, and the dust removal flame arrester is flange-connected with the air inlet of the gas heat exchanger 30 .

The electric heater 31 includes a cylinder body and a group of electric heating tubes, one group of electric heating tubes are arranged and installed on the tube base in sequence, one group of electric heating tubes are inserted into the cylinder body, and the tube base is sealed and installed at the end of the cylinder body.

The gas heat exchanger 30 includes a tank body 35, a pair of sealing heads 36, a set of heat exchange pipes and a pair of clamps 38. The two ends of the tank body 35 are open, and a pipe fixing plate 39 is respectively arranged in the opening. The set of heat exchange pipes is installed between a pair of pipe fixing plates 39 , and the tank body 35 and a pair of heads 36 are respectively connected by flanges and locked by clamps 38 .

The inner wall of the tank body 35 is provided with a set of guide protrusions uniformly distributed in a circular shape, and the head 36 is provided with a set of guide grooves for use in cooperation with the guide protrusions.

The blower 33 is a centrifugal blower; a set of baffles are arranged sequentially in the gas heat exchanger 30; the inlet end of the flame arrester 34 is provided with a valve.

Working method and principle: the exhaust gas filtered by the filter device is input from the air inlet at the bottom of the adsorption shell 20, passes through the ventilation net at the bottom of the activated carbon laying box 21, and is sent to the activated carbon particle layer for the first adsorption, and the exhaust gas after adsorption rises to The honeycomb carrier plate 22 is secondarily adsorbed by the honeycomb activated carbon 23 through the ventilation holes, and the exhaust gas after the adsorption is exhausted from the air outlet on the top of the adsorption housing 20 to the next processing station. When needing to change gac, open access door 25, pull drawer handle, extract gac laying box 21 and honeycomb carrier plate 22, can take out gac granule layer and honeycomb gac 23. The activated carbon limiting groove 24 plays the role of assisting in placing the activated carbon, and improves the utilization rate of the space for placing the honeycomb activated carbon 23 .

The organic gas source is sent from the inlet of the flame arrester 34 through the action of the induced draft fan, and enters the gas heat exchanger 30 after being dedusted by the dust removal flame arrester, and then sent to the electric heater 31 for heating. The heated organic gas reaches the combustion reaction temperature, and then enters the gas heat exchanger 30 Catalytic reactor 32 catalyzes the reaction to decompose organic gas into carbon dioxide and water, and the gas after the reaction enters gas heat exchanger 30 to exchange heat with low-temperature gas to raise the temperature of the incoming gas to the reaction temperature. If the reaction temperature cannot be reached, the electric heater 31 can compensate and heat it so that it can be burned completely, which saves energy and makes the exhaust gas reach the emission standard. The inner wall of the tank body 35 is provided with a set of guide protrusions uniformly distributed in a circular shape, and the head 36 is provided with a set of guide grooves for use in cooperation with the guide protrusions. Make the sealing head 36 install more accurately.

Claims (10)

1. An exhaust gas adsorption catalysis system is characterized by comprising an adsorption device and a catalysis device,

the adsorption device comprises an adsorption shell (20), an active carbon laying box (21), a honeycomb bearing plate (22) and a group of honeycomb active carbons (23),

the top of the adsorption shell (20) is provided with an air outlet, the bottom of the adsorption shell (20) is provided with an air inlet, an activated carbon laying box (21) is installed in the adsorption shell (20), the bottom of the activated carbon laying box (21) is provided with a breathable net, an activated carbon particle layer is laid on the breathable net, a honeycomb bearing plate (22) is installed in the adsorption shell (20) and located above the activated carbon laying box (21), a plurality of groups of breathable holes are formed in the honeycomb bearing plate (22), a group of activated carbon limiting grooves (24) are sequentially arranged on the honeycomb bearing plate (22), and a group of honeycomb activated carbons (23) are placed in the corresponding activated carbon limiting grooves (24);

the catalytic device comprises a gas heat exchanger (30), an electric heater (31), a catalytic reactor (32) and a fan (33),

one end of the gas heat exchanger (30) is provided with a gas inlet, a flame arrester (34) is arranged on the gas inlet, the other end of the gas heat exchanger (30) is provided with a gas outlet, the gas outlet of the gas heat exchanger (30) is communicated with the gas inlet on the shell of the electric heater (31) through a pipeline, the gas outlet of the electric heater (31) is communicated with the gas inlet at the bottom of the catalytic reactor (32), the gas outlet at the upper part of the catalytic reactor (32) is communicated with the gas inlet at the top of the gas heat exchanger (30) through a pipeline, the gas outlet of the gas heat exchanger (30) is communicated with a pumping hole of a fan (33) through a pipeline, and the gas outlet of the fan (33) is provided with an exhaust pipeline;

the gas outlet of the adsorption shell (20) is communicated with the gas inlet of the gas heat exchanger (30).

2. An exhaust gas adsorption catalyst system according to claim 1, wherein an access door (25) is provided on a side wall of the adsorption casing (20); drawer slide rails are respectively arranged on two sides of the activated carbon laying box (21) and are installed in the adsorption shell (20) through the drawer slide rails, and a drawer handle is arranged at the end part of the activated carbon laying box (21).

3. An exhaust gas adsorption catalyst system according to claim 1, wherein the honeycomb carrier plate (22) is provided with drawer slide rails on both sides thereof and is installed in the adsorption housing (20) through the drawer slide rails, and the end of the honeycomb carrier plate (22) is provided with a drawer handle.

4. The exhaust gas adsorption catalytic system according to claim 1, wherein the activated carbon retaining groove (24) is formed by four side plates, a pair of long circular holes are formed on the side plates, and the activated carbon retaining groove (24) is welded on the honeycomb carrier plate (22); the air permeable net is a stainless steel sintered net plate; pneumatic gate valves are respectively arranged on the air outlet and the air inlet of the adsorption shell (20).

5. An exhaust gas adsorption catalyst system according to claim 1, wherein the top and bottom of the adsorption casing (20) are both in a truncated cone shape; the bottom of the adsorption shell (20) is provided with a supporting frame.

6. An exhaust gas adsorption catalysis system as claimed in claim 1, wherein the flame arrestor (34) is a dust arrestor, and wherein the dust arrestor is flanged to the gas inlet of the gas heat exchanger (30).

7. An exhaust gas adsorption catalyst system according to claim 1 wherein the electric heater (31) comprises a cylindrical body and a plurality of electric heating tubes, the plurality of electric heating tubes being arranged in series on a tube holder, the plurality of electric heating tubes being inserted into the cylindrical body, the tube holder being sealingly mounted at an end of the cylindrical body.

8. An exhaust gas adsorption catalysis system according to claim 1, characterized in that the gas heat exchanger (30) comprises a tank (35), a pair of end sockets (36), a set of heat exchange pipes and a pair of clamps (38), the tank (35) is open at two ends, and pipe fixing plates (39) are respectively arranged in the open, the set of heat exchange pipes are installed between the pair of pipe fixing plates (39), and the tank (35) and the pair of end sockets (36) are respectively connected through flanges and locked through the clamps (38).

9. The exhaust gas adsorption catalysis system of claim 1, wherein a set of guide protrusions are uniformly distributed on the inner wall of the tank body (35) in a ring shape, and a set of guide grooves matched with the guide protrusions are formed on the end socket (36).

10. An exhaust gas adsorption catalysis system according to claim 1, characterized in that the fan (33) is a centrifugal fan; a group of baffle plates are sequentially arranged in the gas heat exchanger (30); the inlet end of the flame arrester (34) is provided with a valve.

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