CN208642221U - A kind of energy conservation and environmental protection catalytic combustion system - Google Patents

Abstract

The utility model discloses a kind of energy conservation and environmental protection catalytic combustion system, the present apparatus is connect with adsorbent bed, is connected and composed by the desorption blower and pipeline of the preheater of offer catalytic combustion heat amount, the catalysis burning bed of completion burning, offer wind pressure；Preheater front end is connected to adsorbent bed, and preheater rear end is linked in sequence is catalyzed burning bed, desorption blower again, the air after burning is discharged into the delivery pipe of atmosphere；It is additionally provided with heat exchanger between adsorbent bed and preheater, hot gas path and organic exhaust gas channel are provided in the heat exchanger；Organic exhaust gas channel both ends are connected with adsorbent bed, preheater respectively；Hot gas path both ends are connected with catalysis burning bed, desorption blower respectively.The utility model recycles the heat generated in catalyticing combustion process, has saved a large amount of electric energy.

Description

A kind of energy conservation and environmental protection catalytic combustion system

Technical field

Present invention relates particularly to a kind of organic waste gas treatment device, especially activated carbon adsorption and desorption burners.

Background technique

Under the current booming environment of industry, industrial production brings a large amount of disposal of pollutants, environmental protection problem face Face increasingly stern challenge, industrial discharge includes waste water and exhaust gas and waste residue, and wherein exhaust gas is discharged into atmosphere, is passed through The flowing of air causes the air pollution of large area, forms harmful substance in air and increases, visibility reduces, and forms acid rain, mist People's lives are caused very big influence by the pernicious weather such as haze, cause to encroach on to people's health.

Organic exhaust gas is one of air pollutants, when electrocoating paint and Related product produce, generates low concentration gas, gives up Gas ingredient is mainly volatile organic matter, not only influences plant produced working environment, the physical and mental health of employee is endangered, also to periphery Atmospheric environment causes pollution.To improve atmosphere quality, promotes the sustainable development of business economic, meet environment and economy Synchronous coordination demand for development, occur VOCs treatment scheme currently on the market.

Carrying out processing using Activated Carbon toward VOCs-Containing Exhausts is a kind of very effective processing mode, and organic exhaust gas is through pipe Road enters activated carbon adsorption bed, by reasonable cloth wind, makes it uniformly across active carbon, and stop the regular hour, due to The effect of attractive interaction generates physical absorption (also known as Van der Waals absorption) between activated carbon surface and organic molecule, its main feature is that absorption Matter (organic exhaust gas) and adsorbent (active carbon) do not react mutually；Process carries out very fast；Adsorbent nature is adsorbing Do not change in the process；Adsorption process is reversible.To which the organic principle in exhaust gas to be adsorbed on to the surface of active carbon, to make exhaust gas It is purified and discharges.

But after activated carbon adsorption organic matter reaches saturation state, need to carry out desorption burning, it will using high temperature gas flow Organic matter blows over completion desorption from active carbon, and row high-temp combustion is converted to nontoxic, nothing when entering catalytic combustor after desorption Harmful carbon dioxide and water.

Then the cost of a set of organic exhaust gas active-carbon processing equipment is very expensive, and especially active carbon desorption catalyzing fires Burn device.Heat exchange layer, catalytic combustion layer and recuperation layer are equipped in catalytic combustion system, organic matter is acted in noble metal catalyst It is converted.It, can mistake if a set of organic exhaust gas active-carbon processing unit cost is excessively high for numerous middle-size and small-size enterprises The exhaust-gas treatment cost for mostly increasing enterprise, makes enterprise can't bear the heavy load, and hinders enterprise development, influences local economy, or make Many enterprises abandon the processing of the discharge to organic exhaust gas, stealthily carry out violation discharge.Meanwhile machine exhaust gas active-carbon processing equipment It is also very big to take up an area range, the certain land used of Yao Zhanyong plant area.

Therefore, urgent need will solve the problems, such as that plant area's investment active carbon processing organic exhaust gas is at high cost and uses land occupation.

Simultaneously as catalysis burning bed needs that the organic air being desorbed first is heated to burning point, generally in burning Using Electric heating, in the process, need using a large amount of heat, it is therefore desirable to consume a large amount of electric energy, and work as In the carbon dioxide gas direct emission air being converted into after completing burning, and contain a large amount of thermal energy, not only bad for big Gas, and also cause the loss of this partial heat.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the existing technology, and it is low to provide a kind of input cost, small using space occupied And very energy-saving organic exhaust gas active-carbon processing equipment.

To achieve the above object, the technical solution used in the present invention is as follows:

A kind of energy conservation and environmental protection catalytic combustion system provided by the invention, connect with adsorbent bed, by offer catalytic combustion heat amount Preheater, complete burning catalysis burning bed, offer wind pressure desorption blower and pipeline connect and compose；Preheater front end connects It is connected to adsorbent bed, preheater rear end is linked in sequence is catalyzed burning bed, desorption blower again, the air after burning is discharged into the row of atmosphere Put pipe；It is additionally provided with heat exchanger between adsorbent bed and preheater, is provided with hot gas path and organic waste in the heat exchanger Gas channel；Organic exhaust gas channel both ends are connected with adsorbent bed, preheater respectively；Hot gas path both ends respectively with catalysis burning bed, Blower is desorbed to connect.

A kind of energy conservation and environmental protection catalytic combustion system as described above has specifically, being body structure in the heat exchanger Machine exhaust steam passage is passed through out of cabinet, and hot air intake and heat outlet are arranged on box body wall, and hot air intake connection is catalyzed burning bed, Heat outlet connection desorption blower.

A kind of energy conservation and environmental protection catalytic combustion system as described above, specifically, being body structure, heat in the heat exchanger Gas channel is passed through out of cabinet, and organic exhaust steam passage import and organic exhaust gas channel outlet are arranged on box body wall, and organic exhaust gas is logical Road import connects adsorbent bed, and organic exhaust gas channel outlet connects preheater.

A kind of energy conservation and environmental protection catalytic combustion system as described above, specifically, being also set up between adsorbent bed and heat exchanger There is fire arrester, the fire arrester is body structure, setting organic exhaust gas fire aisle in cabinet, in organic exhaust gas fire aisle It is provided with wire mesh.

A kind of energy conservation and environmental protection catalytic combustion system as described above, specifically, the desorption blower includes for entering the wind Negative pressure end be used for outlet air positive pressure side；Adsorbent bed includes air discharge end after organic gas inlet end and processing；Described Negative pressure end is connected to catalysis burning bed, and the positive pressure side is connect with air discharge end after delivery pipe, the processing respectively.

A kind of energy conservation and environmental protection catalytic combustion system as described above, specifically, the positive pressure side of the desorption blower with urge It is connected, is circumscribed on circulation pipe for being mended into circulation pipe by circulation pipe between air discharge end after the processing of change burning bed The cold wind branch pipe of cold wind is filled, cold wind branch pipe is connect with air-cooler.

A kind of energy conservation and environmental protection catalytic combustion system as described above, specifically, the adsorbent bed, fire arrester, desorption wind Machine, air-cooler, delivery pipe are fixedly mounted on VOCs treatment place；The heat exchanger, preheater, catalysis burning bed is can Movable part is arranged on moving body；Separable fast interface is set on the pipeline connected between fire arrester and heat exchanger, is taken off Separable fast interface is set on the pipeline connected between attached blower and heat exchanger；The separable fast interface is extinguishing pipe Tooth interface.

The invention has the benefit that

Energy conservation and environmental protection catalytic combustion system of the invention, is provided with heat exchanger, the heat that will be generated in catalyticing combustion process It recycles, has saved a large amount of electric energy.

Activated carbon adsorption desorption catalyzing burner is divided into two major parts by the present invention, and a part is fixedly mounted on factory Area；And another part is catalysis burning bed, this part is movable part, is mounted on transport vehicle.Enterprise sets in investment environmental protection When standby, it is only necessary to purchase and install advantage of lower cost, and need to connect use be fixed on plant area's organic exhaust gas adsorption, row Put part and some pipelines；And the cost is relatively high, frequency of use is again lower, and the catalysis burning bed that gap uses is without installation With purchase, it is only necessary in use, leasing the catalysis burning bed being mounted on transport vehicle, or organic waste gas treatment equipment is allowed to produce Producer provides paid catalysis burning service, to substantially reduce organic waste gas treatment equipment initial stage installation cost, and reduces catalysis combustion Burn bed space occupied.

The separable fast interface of apparatus of the present invention is fire-fighting tube tooth interface, when movable part is docked with fixed part, Installation can quickly be connected.

Detailed description of the invention

Fig. 1 is present apparatus structure chart.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and Technical solution of the present invention is clearly and completely described in corresponding attached drawing.

With reference to Fig. 1, a kind of energy conservation and environmental protection catalytic combustion system provided in this embodiment, mainly by movable part and fixed part It is grouped as, fixed part is mounted on organic exhaust gas discharge ground, i.e. plant area.Movable part is divided into catalysis burning bed.

The form of separable fast interface is not limited to tube tooth interface, only can be smoothly effectively by fixed part and moving portion Divide docking, for example use flange-interface, sleeve type interface, hickey, preferential selection is stable with interface, and installation is fastly The connection type of speed.

It being catalyzed before and after burning bed equipped with fire arrester, fire arrester inside is filter structure, when carrying Mars in air-flow secretly, resistance Wire mesh inside firearm makes fray-out of flame since wall effect is converted into thermal energy, prevents propagation of flame and safe thing occurs Therefore.Fire arrester apparatus casing material is made by the zinc-plated plate material of t=1.5mm, and strainer is copper sieve.

Heat exchanger is plate-type heat exchange structure, and effect is the heat released using catalysis reaction, heats air inlet, improves thermal energy benefit With rate, heating electric energy is reduced.

Preheater is that exhaust gas heating uses pollution-free, stable Electric heating.

Catalysis burning bed is additionally provided with thermal resistance, explosion-protection equipment, connecting pipe, instrument valve, electric heating tube, blower motor Deng.Thermal resistance is using stainless steel protection pipe measurement inlet air heating and purification temperature.

Catalysis burning bed is precious metal catalyst burning bed, is made of multi-layer honeycomb shape catalyst, noble metal catalyst is to adopt Use cordierite honeycomb ceramic as first vector, Y-AL203 is Second support, with precious metals pd, Pt etc. for main active component, It is a kind of novel catalyst for purifying organic waste gas, gas flow resistance is low, and reacting initial temperature is low, active high, air speed adapts to Range is wide, purification efficiency >=99%, and stability is good, and heat resistance is good, long service life.

Example one:

Adsorbent bed is mounted on factory, generates absorption to the organic gas of plant emissions, after adsorption saturation, needs to absorption Bed carries out desorption burning.

Catalysis burning bed on transport vehicle is as follows to saturation adsorbent bed desorption combustion process: starting desorption blower is opened pre- Hot device preheats the catalyst in catalysis burning bed, while generating a certain amount of hot-air, and hot-air is sent into and is adsorbed Bed, the heated organic gas for parsing high concentration of active carbon in adsorbent bed introduces urging in catalysis burning bed through desorption blower Change burning bed.

It is catalyzed in burning bed and is equipped with heat exchange layer, catalytic combustion layer and recuperation layer.Into catalysis burning bed gas first With the gas converting heat after burning, heating, VOCs carries out flameless combustion in a lower temperature under noble metal catalyst effect, It is converted to nontoxic, harmless carbon dioxide and water, reactional equation is as follows:

A large amount of heat is released while reaction, and subsequent organic gas can be maintained to enter needed for catalysis burning bed burning Initiation temperature makes organic exhaust gas combustion process not need additional energy consumption (electric energy), thus greatly reduces energy consumption.After burning Gas passes through heat exchanger, and enters adsorbent bed, continues to the active carbon in adsorbent bed by Thermal desorption.

When burning exhaust gas concentration is higher, reaction temperature is higher in catalysis burning bed, air-cooler is automatically turned on, and is supplemented fresh Cold air enter circulation pipe be lowered into adsorbent bed temperature, ensure entirely to parse it is safe and efficient with combustion system Operation.

The major impetus for completing entire desorption system work is desorption blower, when desorption just starts, opens desorption blower And preheater, make to be catalyzed generation hot-air in burning bed, when temperature reaches certain value in catalysis burning bed, hot-air is introduced It is desorbed to adsorbent bed；After hot-air enters adsorbent bed, the adsorbed organic exhaust gas of active carbon is just resolved and comes out, and parses Organic exhaust gas by be desorbed blower be sent to catalysis burning bed in.

Above embodiment is used to illustrate the present invention, rather than limits the invention, in spirit of the invention In scope of protection of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.

Claims (7)

1. a kind of energy conservation and environmental protection catalytic combustion system, connect with adsorbent bed, which is characterized in that by the pre- of offer catalytic combustion heat amount The desorption blower and pipeline of catalysis burning bed, offer wind pressure that hot device, completion are burnt connects and composes；Preheater front end is connected to Adsorbent bed, preheater rear end is linked in sequence again is catalyzed burning bed, desorption blower, the discharge that the air after burning is discharged into atmosphere Pipe；It is additionally provided with heat exchanger between adsorbent bed and preheater, is provided with hot gas path and organic exhaust gas in the heat exchanger Channel；Organic exhaust gas channel both ends are connected with adsorbent bed, preheater respectively；Hot gas path both ends respectively with catalysis burning bed, de- Attached blower is connected.

2. a kind of energy conservation and environmental protection catalytic combustion system as described in claim 1, which is characterized in that be case in the heat exchanger Body structure, organic exhaust gas channel are passed through out of cabinet, and hot air intake and heat outlet are arranged on box body wall, and hot air intake connection is urged Change burning bed, heat outlet connection desorption blower.

3. a kind of energy conservation and environmental protection catalytic combustion system as described in claim 1, which is characterized in that be case in the heat exchanger Body structure, hot gas path are passed through out of cabinet, and organic exhaust steam passage import and organic exhaust gas channel outlet are arranged on box body wall, has Machine exhaust steam passage import connects adsorbent bed, and organic exhaust gas channel outlet connects preheater.

4. a kind of energy conservation and environmental protection catalytic combustion system as described in claim 1, which is characterized in that adsorbent bed and heat exchanger it Between be additionally provided with fire arrester, the fire arrester is body structure, and organic exhaust gas fire aisle, organic waste vapour lock is arranged in cabinet Wire mesh is provided in fiery channel.

5. a kind of energy conservation and environmental protection catalytic combustion system as described in claim 1, which is characterized in that the desorption blower includes Negative pressure end for air inlet and the positive pressure side for outlet air；Adsorbent bed includes air discharge after organic gas inlet end and processing End；The negative pressure end is connected to catalysis burning bed, the positive pressure side respectively with air discharge end after delivery pipe, the processing Connection.

6. a kind of energy conservation and environmental protection catalytic combustion system as claimed in claim 5, which is characterized in that the desorption blower is just It pressure side and is catalyzed after the processing of burning bed between air discharge end through circulation pipe connection, is circumscribed on circulation pipe for following The cold wind branch pipe of supplement cold wind, cold wind branch pipe are connect with air-cooler in endless tube.

7. a kind of energy conservation and environmental protection catalytic combustion system as claimed in claim 6, which is characterized in that adsorbent bed, fire arrester, desorption Blower, air-cooler, delivery pipe are fixedly mounted on VOCs treatment place；The heat exchanger, preheater, catalysis burning bed are Moveable part is arranged on moving body；Separable fast interface is set on the pipeline connected between fire arrester and heat exchanger, Separable fast interface is set on the pipeline connected between desorption blower and heat exchanger；The separable fast interface is fire-fighting Tube tooth interface.