CN210088888U

CN210088888U - Waste gas catalytic combustion processing device

Info

Publication number: CN210088888U
Application number: CN201920765141.0U
Authority: CN
Inventors: 郑志刚; 钟邦贤; 洪应波; 王臣; 张晨曦; 薛俊; 加涛
Original assignee: Hubei Chaoyue Environmental Protecting Equipment Co Ltd
Current assignee: Hubei Chaoyue Environmental Protecting Equipment Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-18
Anticipated expiration: 2029-05-24

Abstract

The embodiment of the utility model discloses exhaust gas catalytic combustion processing apparatus, include: advance tobacco pipe, go out tobacco pipe, catalysis box, heater and condenser tube, catalysis box has seted up fresh air inlet and exhaust vent, and fresh air inlet communicates into the tobacco pipe, and the exhaust vent communicates out the tobacco pipe, has placed the catalyst in the catalysis box, and the heater arranges in advancing the tobacco pipe, and condenser tube crosses catalysis box and arranges. Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses an exhaust gas catalytic combustion processing apparatus is earlier with the heater with waste gas heating to the suitable temperature of catalyst, then passes the catalysis box, through volume catalyst catalytic combustion in the catalysis box, turns into inorganic matters such as water and carbon dioxide, and the cooling water pipe that crosses the catalysis box simultaneously constantly lets in the cooling water, absorbs the heat that the catalytic combustion reaction released, avoids the catalyst high temperature and the melting that leads to, loses activity.

Description

Waste gas catalytic combustion processing device

Technical Field

The utility model relates to a waste gas treatment technical field especially relates to a waste gas catalytic combustion processing apparatus.

Background

The catalytic combustion of waste gas is to oxidize the hydrocarbon in organic waste gas into water and carbon dioxide quickly under the action of catalyst to reach the aim of treating. The catalytic combustion can realize complete combustion of fuel at a lower temperature, has very important effects on the aspects of improving the combustion process, reducing the reaction temperature, promoting complete combustion, inhibiting the formation of toxic and harmful substances and the like, and is an environment-friendly process.

The key to catalytic combustion reactions is the selection of a suitable catalyst. The requirements for the catalyst are: the activity is high, in particular good at low temperatures, in order to start the reaction at as low a temperature as possible. However, because the combustion reaction is an exothermic reaction, a large amount of heat is released to enable the surface of the catalyst to rapidly reach a high temperature of 500-1000 ℃, so that the activity of the catalyst is easily reduced due to melting.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a waste gas catalytic combustion processing apparatus, solve among the prior art waste gas in the catalytic combustion process, emit a large amount of heats and cause the catalyst to heat up the melting rapidly and reduce active technical problem.

In order to achieve the technical purpose, the embodiment of the utility model provides an exhaust gas catalytic combustion processing apparatus, this exhaust gas catalytic combustion processing apparatus includes: advance tobacco pipe, go out tobacco pipe, catalysis box, heater and condenser tube, catalysis box has seted up fresh air inlet and exhaust vent, and fresh air inlet communicates into the tobacco pipe, and the exhaust vent communicates out the tobacco pipe, has placed the catalyst in the catalysis box, and the heater arranges in advancing the tobacco pipe, and condenser tube crosses catalysis box and arranges.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses an exhaust gas catalytic combustion processing apparatus is earlier with the heater with waste gas heating to the suitable temperature of catalyst, then passes the catalysis box, through volume catalyst catalytic combustion in the catalysis box, turns into inorganic matters such as water and carbon dioxide, and the cooling water pipe that crosses the catalysis box simultaneously constantly lets in the cooling water, absorbs the heat that the catalytic combustion reaction released, avoids the catalyst high temperature and the melting that leads to, loses activity.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an apparatus for catalytic combustion treatment of exhaust gases provided by the present invention;

fig. 2 is a front view of the catalytic cartridge of fig. 1.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of an exhaust gas catalytic combustion processing apparatus provided in the present invention; fig. 2 is a front view of the catalytic cartridge of fig. 1.

The exhaust gas catalytic combustion processing device includes: the device comprises a smoke inlet pipe 1, a smoke outlet pipe 2, a catalytic box 3, a heater 4 and a cooling water pipe 5.

The catalytic box 3 is provided with an air inlet hole and an air outlet hole 31 for the exhaust gas to pass through the catalytic box 3. The smoke inlet pipe 1 is communicated with an air inlet hole of the catalysis box 3, and the smoke outlet pipe 2 is communicated with an air outlet hole 31 of the catalysis box. In the catalyst case 3, a catalyst is placed in accordance with the kind of the exhaust gas, and when the exhaust gas is a combustible organic substance such as alkane, for example, a metal or a metal oxide is generally used as the catalyst. The noble metal catalyst mainly comprises platinum, palladium, ruthenium and the like, and the common metal catalyst mainly comprises metals such as copper, chromium, nickel, vanadium, manganese, iron, cobalt and the like and oxides. The exhaust gas is input into the catalytic box 3 from the smoke inlet pipe 1, is subjected to catalytic combustion by the catalyst in the catalytic box 3, and is output from the smoke outlet pipe 2.

The heater 4 is arranged in the smoke inlet pipe 1 and used for heating the exhaust gas to the temperature with the highest catalyst activity, and then inputting the exhaust gas into the catalytic box 3 for catalytic combustion. The heater 4 may preferably be an electric heater, and the electric heater is powered on to heat the heating wires in the heater 4 to realize the function of heating the exhaust gas.

A cooling water pipe 5 is arranged across the catalyst cartridge 3 for cooling the catalyst in the catalyst cartridge 3 to maintain it in the temperature interval of highest activity.

In this embodiment, for better heat dissipation of the catalyst in the catalyst box 3, the portion of the cooling water pipe 5 located in the catalyst box 3 is split into a plurality of pieces to increase the heat exchange area and increase the heat exchange speed. Meanwhile, the part of the cooling water pipe 5 in the catalytic box 3 is also perpendicular to the connection line of the air inlet and the air outlet 31, so as to facilitate the heat exchange.

In order to better ensure that the catalyst in the catalytic box 3 is in the temperature interval with the highest activity, the exhaust gas catalytic combustion treatment device further comprises a water pump 6 and a temperature measuring instrument 7. The water pump 6 is arranged on the cooling water pipe 5, the measuring end of the temperature measuring instrument 7 is arranged in the catalytic box 3, the display end is arranged outside the catalytic box 3, and in industrial use, because the required precision is not high, a bimetallic thermometer is generally adopted for measuring. When the exhaust gas catalytic combustion treatment device is used, the power of the water pump 6 can be controlled according to the numerical value of the catalyst temperature actually measured by the temperature measuring instrument 7. When the temperature of the catalyst is too high, the power of the water pump 6 is increased, the flow of cooling water is accelerated, and the temperature of the catalyst is reduced; when the temperature of the catalyst is too low, the power of the water pump 6 is reduced, the flow of cooling water is slowed down, and the temperature of the catalyst is increased.

The catalytic combustion treatment unit for exhaust gases further comprises an exhaust fan 8 arranged in the exhaust pipe 2 for drawing exhaust gases through the catalytic cartridge 3.

When the gas catalytic combustion treatment device is used, corresponding catalysts are firstly placed in the catalytic box 3 according to the types of the waste gas, and then the waste gas is pumped through the catalytic box 3 by using the exhaust fan 8. The exhaust gas is heated to the optimum temperature by the heater 4 in the smoke inlet pipe 1, and then enters the catalytic box 3 for catalytic combustion. The generated heat is absorbed by the cooling water in the cooling water pipe 5, so that the inactivation caused by overhigh temperature of the catalyst is avoided.

Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses an exhaust gas catalytic combustion processing apparatus is earlier with the heater with waste gas heating to the suitable temperature of catalyst, then passes the catalysis box, through volume catalyst catalytic combustion in the catalysis box, turns into inorganic matters such as water and carbon dioxide, and the cooling water pipe that crosses the catalysis box simultaneously constantly lets in the cooling water, absorbs the heat that the catalytic combustion reaction released, avoids the catalyst high temperature and the melting that leads to, loses activity.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas catalytic combustion treatment device, characterized by comprising: advance tobacco pipe, play tobacco pipe, catalysis box, heater and condenser tube, catalysis box has seted up fresh air inlet and exhaust vent, the fresh air inlet intercommunication advance the tobacco pipe, the exhaust vent intercommunication go out the tobacco pipe, the catalyst has been placed in the catalysis box, the heater arrange in advance in the tobacco pipe, condenser tube crosses catalysis box arranges.

2. The catalytic combustion processing device for exhaust gas according to claim 1, wherein a line connecting the air inlet hole and the air outlet hole is perpendicular to the cooling water pipe.

3. The exhaust gas catalytic combustion treatment apparatus according to claim 1, characterized in that the exhaust gas catalytic combustion treatment apparatus further comprises a temperature measuring instrument, a measuring end of which is disposed inside the catalyst case, and a display end of which is disposed outside the catalyst case.

4. The catalytic combustion treatment device for exhaust gas according to claim 1, further comprising an exhaust fan disposed in the flue gas outlet pipe.

5. The exhaust gas catalytic combustion treatment device according to claim 1, further comprising a water pump disposed on the cooling water pipe.