CN209068527U - Catalytic combustion device - Google Patents

Abstract

This application discloses a kind of catalytic combustion devices, including horizontally disposed bracket and the shell being set on the bracket, it from top to down successively include gas-bearing formation in the shell, air inlet layer, Catalytic Layer and heating layer, the gas-bearing formation out is connected to the Catalytic Layer by several outlet pipes, air inlet layer side is equipped with air inlet, the Catalytic Layer includes the inner casing for being fixed on the inner walls and the catalyst being set in the inner casing, the both ends of the outlet pipe extend through the roof of the air inlet layer and the roof of inner casing, the bottom wall of the inner casing is recessed with several through-holes, the inner casing and the shell are arranged away from the side inner wall interval of the air inlet, heating tube is equipped in the heating layer.The catalytic combustion device structure is simple, using temperature needed for chemical reaction of the oxidation with reduction occurs between catalyst degradation pernicious gas between each other, reduces energy consumption.

Description

Catalytic combustion device

Technical field

This application involves technical field of air pollution control, in particular to a kind of catalytic combustion device.

Background technique

Exhaust gas refers to the poisonous and hazardous gas that the mankind are discharged in production and life process.Especially chemical plant, steel The exhaust gas smell of factory, pharmaceutical factory and coking plant and oil plant etc., discharge is big, serious to pollute environment and influence human health.It is existing Have in technology, the discharge of exhaust gas can not be filtered effectively, and environmental quality is caused to be deteriorated, and influence people's lives environment.It is useless The improvement of gas, the general method using physics and chemistry, specific Processing tecchnics have Production by Catalytic Combustion Process, active carbon adsorption, cold Solidifying method, absorption process and plasma oxidation method etc., solve pollution of the organic exhaust gas to environment.

Utility model content

The purpose of this utility model is to provide a kind of catalytic combustion devices, to overcome deficiency in the prior art.

To achieve the above object, the utility model provides the following technical solutions:

The embodiment of the present application discloses a kind of catalytic combustion device, including horizontally disposed bracket and is set to the branch Shell on frame successively includes gas-bearing formation, air inlet layer, Catalytic Layer and heating layer, the outlet in the shell from top to down Layer is connected to the Catalytic Layer by several outlet pipes, and air inlet layer side is equipped with air inlet, and the Catalytic Layer includes solid Inner casing due to the inner walls and the catalyst being set in the inner casing, the both ends of the outlet pipe extend through institute The roof of air inlet layer and the roof of inner casing are stated, the bottom wall of the inner casing is recessed with several through-holes, and the inner casing and the shell are carried on the back Side inner wall interval setting from the air inlet, the heating layer is interior to be equipped with heating tube.

Preferably, in above-mentioned catalytic combustion device, the gas-bearing formation out is set on the roof of the air inlet layer, institute It states out gas-bearing formation and one end of the shell is provided with the first external flange.

Preferably, in above-mentioned catalytic combustion device, the air inlet is connected with variable diameter away from the side of the shell Pipe, the reducer pipe are connected with the second external flange away from one end of the air inlet.

Preferably, in above-mentioned catalytic combustion device, the top at the both ends of the outlet pipe outer wall and the air inlet layer Sealed set is distinguished between wall and the roof of inner casing.

Preferably, in above-mentioned catalytic combustion device, the catalyst is block-like honeycomb catalyst.

Compared with the prior art, the advantages of the utility model are: the catalytic combustion device structure is simple, catalyst is utilized Temperature needed for chemical reaction of the oxidation with reduction occurs between each other between pernicious gas is reduced, energy consumption, while outlet are reduced Pipeline is set to air inlet layer, and exhaust gas and purified gas carry out heat exchange, improve energy utilization rate.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts, It is also possible to obtain other drawings based on these drawings.

Fig. 1 show the structural schematic diagram of catalytic combustion device in the utility model specific embodiment.

Fig. 2 show the structural schematic diagram of inner shell base wall in the utility model specific embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

Join shown in Fig. 1 and Fig. 2, the catalytic combustion device in the present embodiment, including horizontally disposed bracket 100 and setting Shell 200 on bracket 100 successively includes gas-bearing formation 210, air inlet layer 220, Catalytic Layer 230 in shell 200 from top to down With heating layer 240, gas-bearing formation 210 is connected to Catalytic Layer 230 by several outlet pipes 300 out, and 220 side of air inlet layer is equipped with air inlet Mouth 221, Catalytic Layer 230 is including being fixed on the inner casing 231 of 200 inner wall of shell and the catalyst 232 being set in inner casing 231, out The both ends of feed channel 300 extend through the roof of air inlet layer 220 and the roof of inner casing 231, and the bottom wall of inner casing 231 is recessed with several Through-hole, inner casing 231 and shell 200 are arranged away from the side inner wall interval of air inlet 221, and heating tube is equipped in heating layer 240 241。

In the technical solution, bracket can use square steel and be welded, gas-bearing formation is connected to outside out for fixing the equipment Exhaust fan, air inlet are connected to external exhaust gas pipeline, exhaust fan work, form negative pressure in shell, exhaust gas by air inlet enter into Gas-bearing formation, inner casing and shell are arranged away from the side inner wall interval of air inlet 221, form gas passage, thus exhaust gas enters heating Layer, heating tube by exhaust gas heat it is 200 DEG C big~400 DEG C, the exhaust gas after heating enters Catalytic Layer, under the effect of the catalyst exhaust gas Between the chemical reaction of oxidation with reduction occurs between each other, generate the innocuous gas such as N2, CO2, H2O, and by outlet pipe into Enter out gas-bearing formation, wherein with the exhaust gas for having just enter into air inlet layer heat friendship occurs for purified gas during by outlet pipe It changes, the discharge such as the exhaust fan of purified gas outside, the catalytic combustion device structure is simple, has using catalyst degradation Temperature needed for chemical reaction of the oxidation with reduction occurs between each other between evil gas, reduces energy consumption, while outlet pipe is set It is placed in air inlet layer, exhaust gas and purified gas carry out heat exchange, improve energy utilization rate.

Further, gas-bearing formation 210 is set on the roof of shell 200 out, and gas-bearing formation 210 deviates from one end of shell 200 out It is provided with the first external flange 211.

In the technical solution, convenient for being directly connected to external exhaust fan or pipeline etc..

Further, air inlet 221 is connected with reducer pipe 222 away from the side of shell 200, and reducer pipe deviates from air inlet 221 one end is connected with the second external flange 223.

In the technical solution, the second external flange may be directly connected to external exhaust gas pipeline, and exhaust gas is laggard by reducer pipe Enter shell, be equivalent to and released stress by expanding room, reduces impact of the exhaust gas to outlet pipe.

Further, between the both ends of 300 outer wall of outlet pipe and the roof of shell 200 and the roof of inner casing 231 respectively Sealed set.

In the technical solution, the both ends of 300 outer wall of outlet pipe pass through the roof of welding and shell 200 and inner casing 231 Sealed set is distinguished between roof, avoids exhaust gas is unprocessed from entering out gas-bearing formation.

Further, catalyst 232 is block-like honeycomb catalyst 232.

In the technical solution, catalyst basic material is ceramics, it is therefore an objective to provide the inertia physics of carrying catalyst coat Structure, in order to there is biggish catalytic surface in lesser volume, carrier surface is made for honeycomb, is coated in carrier surface One layer of extremely loose active layer, it is based on metal oxide γ-AL2O3, and since surface is very coarse, this makes the reality of wall surface Area increases thousands of times, greatly increases the active surface of catalyst and the ability of storage oxygen, external coated in active layer There is the cocatalyst of the elements such as Zr containing zirconium and cerium Ce, the major catalyst containing noble metals such as rhodium Rh, palladium Pd, platinum Pt, phase between exhaust gas The chemical reaction that oxidation with reduction occurs between mutually under the effect of the catalyst, generates the innocuous gas such as N2, CO2, H2O.

In conclusion the catalytic combustion device structure is simple, sent out between each other using between catalyst degradation pernicious gas Temperature needed for chemical reaction of the raw oxidation with reduction, reduces energy consumption, while outlet pipe is set to air inlet layer, exhaust gas and purification Gas afterwards carries out heat exchange, improves energy utilization rate.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered It is considered as the protection scope of the application.

Claims (5)

1. a kind of catalytic combustion device, which is characterized in that including horizontally disposed bracket and be set on the bracket Shell, successively include from top to down in the shell gas-bearing formation, air inlet layer, Catalytic Layer and heating layer, if it is described go out gas-bearing formation by It does feed channel and is connected to the Catalytic Layer, air inlet layer side is equipped with air inlet, and the Catalytic Layer is described including being fixed on The inner casing of inner walls and the catalyst being set in the inner casing, the both ends of the outlet pipe extend through the air inlet layer Roof and inner casing roof, the bottom wall of the inner casing is recessed with several through-holes, the inner casing and the shell away from it is described into The side inner wall interval of port is arranged, and heating tube is equipped in the heating layer.

2. catalytic combustion device according to claim 1, it is characterised in that: the gas-bearing formation out is set to the air inlet layer On roof, the gas-bearing formation out is provided with the first external flange away from one end of the shell.

3. catalytic combustion device according to claim 1, it is characterised in that: the air inlet deviates from the side of the shell It is connected with reducer pipe, the reducer pipe is connected with the second external flange away from one end of the air inlet.

4. catalytic combustion device according to claim 1, it is characterised in that: the both ends of the outlet pipe outer wall with it is described Sealed set is distinguished between the roof of air inlet layer and the roof of inner casing.

5. catalytic combustion device according to claim 1, it is characterised in that: the catalyst is the catalysis of block-like honeycomb Agent.