CN208878213U - A kind of VOCs adsorption/desorption active carbon case - Google Patents

Abstract

The application provides a kind of VOCs adsorption/desorption active carbon case, can solve existing conventional activated carbon case air inlet and gas outlet is respectively arranged in active carbon case two sides, caused by equipment whole height is excessively high or occupied area is excessive problem.Meanwhile the contact area of active carbon and exhaust gas is increased, processing air quantity is improved, filtration velocity is reduced, absorption and desorption efficiency can be obviously improved.It include cabinet and be located at intracorporal two layers of the active carbon layer of the case, the bottom surface of the cabinet is equipped with air inlet and gas outlet, two layers of active carbon layer is arranged along the cabinet length direction and perpendicular to the bottom surface of the cabinet, two layers of active carbon layer is placed in the cabinet inner support plate, space is divided into inlet plenum and discharge chamber using baffle between the support plate and the tank floor, the inlet plenum is connected to space of planes on the outside of the air inlet and two layers of active carbon layer, the discharge chamber is connected to space between the gas outlet and two layers of active carbon layer, maintenance door is arranged in active carbon box body side, the maintenance door communicates when opening with space between two layers of active carbon layer.

Description

A kind of VOCs adsorption/desorption active carbon case

Technical field

The application is the one of which of active carbon adsorption in volatile organic waste gas treatment device, it belongs to industrial volatilization Property organic exhaust gas (VOCs) processing technology field.

Background technique

Activated carbon adsorption desorption+catalytic combustion technology is processing more commonly used one kind of industry VOCs exhaust gas on current market Technique has low cost, good purification, operation and maintenance letter in particular for the VOCs exhaust-gas treatment of Wind Volume, middle low concentration The features such as single.The active carbon box number of the technique is usually no less than 2 and is adjacently positioned side by side, the absorption between active carbon case Wind main pipe and desorption wind main pipe are cascaded, and whole set process device so can be achieved to the continuous absorption of VOCs exhaust gas and take off It is attached.

The activated carbon adsorption desorption case of the technique is routinely using mode shown in FIG. 1, wherein cabinet 1 connects upper loudspeaker Mouth 3 and lower horn mouth 2, upper horn mouth 3 are connected with absorption inlet valve 12 and desorption valve 14 simultaneously, and lower horn mouth 2 is simultaneously It is connected with absorption outlet valve 8 and desorption inlet valve 10；Active carbon case absorption when, exhaust gas containing VOCs from adsorb wind entrance main pipe 11 enter active carbon cabinet 1 by absorption inlet valve 12, and pure air is discharged into suction from absorption outlet valve 8 after the absorption of active carbon 5 Attached wind exports main pipe 7；When active carbon case is in desorption, desorption hot wind enters active carbon cabinet 1, active carbon from desorption inlet valve 10 5 under the action of hot-air desorption and regeneration, release VOCs ingredient and be mixed into hot-air, flow through desorption valve 14 enter it is de- Then attached wind outlet 13 introduces subsequent catalyst burner.

The advantages of this conventional activated carbon case is, structure is simple, easy to make, uniform air distribution, good purification.Disadvantage It is that, since active carbon case inner section product is airflow filtering area, exhaust-gas treatment air quantity is restricted, larger if you need to handle The exhaust gas of air quantity then needs to increase the horizontal sectional area of active carbon case or increases the quantity of active carbon case, this causes equipment to account for Ground area increases.Meanwhile to guarantee that active carbon case maintains certain adsorption time and adsorption efficiency, the accumulation of active carbon need to be increased Highly, to ensure the amount of fill of active carbon, the increase of active carbon layer height causes gas-flow resistance to increase, and active carbon desorption and regeneration is not Thoroughly, desorption time lengthens, and system operation energy consumption increases.Further, since air inlet and gas outlet are arranged in active carbon case Upper and lower ends, equipment whole height are higher, it has not been convenient to overhaul the equipment such as valve, the instrument above active carbon case.

Summary of the invention

Technical problems to be solved in this application are to provide a kind of VOCs adsorption/desorption active carbon case, can solve existing Conventional activated carbon case air inlet and gas outlet are respectively arranged in active carbon case two sides, caused by equipment whole height it is excessively high or land occupation The excessive problem of area.Meanwhile the contact area of active carbon and exhaust gas is increased, processing air quantity is improved, filtration velocity is reduced, Absorption and desorption efficiency can be obviously improved.

Its technical solution is such that a kind of VOCs adsorption/desorption active carbon case, including cabinet and is located in the cabinet Two layers of active carbon layer, the bottom surface of the cabinet is equipped with air inlet and gas outlet, and two layers of active carbon layer is along the cabinet Length direction is arranged and perpendicular to the bottom surface of the cabinet, and two layers of active carbon layer is placed in the cabinet inner support plate, Space is divided into inlet plenum and discharge chamber using baffle between the support plate and the tank floor, and the inlet plenum is connected to institute Space of planes on the outside of air inlet and two layers of active carbon layer is stated, the discharge chamber is connected to the gas outlet and two layers of active carbon Layer between space, active carbon box body side be arranged maintenance door, the maintenance door open when with two layers of active carbon layer Between space communicate.

Further, the active carbon cabinet is inside and outside two layers of shell, is filled with heat-preservation cotton between the inner and outer shell.

The inner housing is stainless steel material, and the heat-preservation cotton is alumina silicate heat-preservation cotton.

Further, the air inlet and the gas outlet are respectively positioned on the bottom surface of the active carbon case.

Further, shutter water conservancy diversion is set at the support plate air inlet, steel lattice are set at the support plate gas outlet Plate.

Further, two layers of active carbon layer is cellular active carbon, and the honeycomb fashion activated carbon monoliths specification is 100 × 100 × 100mm, two layers of active carbon layer thickness is identical, and thickness is not more than 400mm.

One level board of every 300mm height setting prevents described in lower part as support when the honeycomb fashion active carbon loads Cellular active carbon is pressurized and damaged.

Lateral surface is respectively provided with stainless (steel) wire and fixes in two layers of active carbon layer, prevents airflow function from causing the honeycomb fashion Active carbon displacement, the active carbon layer medial surface stainless (steel) wire be it is detachable, the stainless (steel) wire aperture be 5-30mm.

Further, the maintenance door is located at active carbon case side and perpendicular to the active carbon layer direction, described Maintenance door width is no more than spacing between two layers of active carbon layer.

The maintenance door is inside and outside two-layered steel plates, is filled with heat-preservation cotton between the inside and outside two-layered steel plates.

The beneficial effect of the application at least following.

The active carbon case of the application, changes the air flow direction of conventional activated carbon case, and air inlet and gas outlet are respectively positioned on work Property charcoal bottom side, mating valve and main air hose be all set in below active carbon case, installs easier, and structure is more compact, fills Divide and occupation area of equipment is utilized and reduces equipment whole height, saves the inspection platform above conventional activated carbon case.

The active carbon case of the application is provided with two layers of active carbon layer along active carbon case length direction, compared to comparable size Conventional activated carbon case effectively increases the filter area and active carbon amount of fill of active carbon layer, improves treatment effeciency, extend Adsorption time and desorption cycles, energy-saving effect are significant.

The active carbon case of the application, active carbon case side and perpendicular to active carbon layer direction be arranged maintenance door, service personnel It can be entered inside active carbon case by maintenance door, space can realize upkeep operation between active carbon layer, compare conventional activated carbon case Interior active carbon is covered with entire active carbon case horizontal cross-section, operates more flexible, conveniently.

Detailed description of the invention

Fig. 1 is existing conventional activated carbon case overall structure diagram.

Fig. 2 is the main view (centering section view) of the application.

Fig. 3 is the top view (removal top cover) of the application.

Fig. 4 is the supporting plate structure schematic diagram of the application.

Fig. 5 is the left view of the application.

Each section label is as follows in attached drawing:

1- cabinet；Horn mouth under 2-；The upper horn mouth of 3-；4- support plate；5- active carbon；6- support frame；7- adsorbs wind outlet Main pipe；8- adsorbs outlet valve；Wind inlet tube is desorbed in 9-；Inlet valve is desorbed in 10-；11- adsorbs wind entrance main pipe；12- adsorbs entrance Valve；Wind outlet is desorbed in 13-；14- desorption valve；

15- cabinet；16- active carbon layer；17- support plate；18- baffle；19- support frame；Wind inlet tube is desorbed in 20-；21- inhales Attached outlet valve；22- adsorbs wind and exports main pipe；23- maintenance door；24- adsorbs inlet valve；25- adsorbs wind entrance main pipe；26- desorption Wind outlet；27- desorption valve；Inlet valve is desorbed in 28-.

Specific embodiment

Embodiments herein is illustrated with reference to the accompanying drawing, so as to be easier with feature by this advantages of the application Field technical staff is understood, to make apparent define to the protection scope of the application.

Embodiment: being shown in Fig. 2-Fig. 5, a kind of VOCs adsorption/desorption active carbon case of the application, including cabinet 15 and is located at case The bottom surface of intracorporal two layers of active carbon layer 16, cabinet 15 is equipped with air inlet and gas outlet, and two layers of active carbon layer 16 is long along cabinet Degree direction is arranged and perpendicular to the bottom surface of cabinet 15, and two layers of active carbon layer 16 is placed in cabinet inner support plate 17, support plate 17 Space is divided into inlet plenum 18-1 and discharge chamber 18-2, inlet plenum 18-1 to be connected to air inlet using baffle 18 between 15 bottom surface of cabinet Mouth is connected to space between gas outlet and two layers of active carbon layer, active carbon with space of planes on the outside of two layers of active carbon layer, discharge chamber 18-2 Maintenance door 23 is arranged in 15 side of box body, and maintenance door 23 communicates when opening with space between two layers of active carbon layer 16.

Specifically, active carbon cabinet 15 is inside and outside two layers of shell, heat-preservation cotton is filled between inner and outer shell, it is possible to reduce de- Thermal loss when attached shortens the heating-up time of hot wind desorption, improves desorption effect while is energy saving.

Specifically, inner housing is stainless steel material, it can prevent harmful components in exhaust gas from causing to corrode to cabinet.

Specifically, heat-preservation cotton is alumina silicate heat-preservation cotton.

See Fig. 2 and Fig. 5, air inlet and gas outlet are respectively positioned on the bottom surface of active carbon case.Absorption entrance is connected at air inlet Valve 24, absorption wind entrance main pipe 25, desorption valve 27, desorption wind outlet 26；Be connected at gas outlet absorption outlet valve 21, Absorption wind outlet main pipe 26, desorption inlet valve 28(be not shown in the figure), desorption wind inlet tube 20.Active carbon case uses support frame 19 It is supported in ground, all valves in active carbon lower part, pipeline can dispatch from the factory integral production, can so further decrease field device installation Difficulty.

Specifically, seeing Fig. 3-Fig. 4, shutter water conservancy diversion is arranged in 17-1,17-2 at support plate air inlet, makes to enter active carbon case Interior air flow method is uniform, and steel grating is arranged in 17-3 at support plate gas outlet, with personnel convenient to overhaul operation on the supporting plate.

Specifically, seeing Fig. 3, two layers of active carbon layer 16 is cellular active carbon, and two layers of 16 thickness of active carbon layer is identical, and thick Degree is not more than 400mm.Make active carbon layer gas-flow resistance having the same in this way, prevents air-flow bias current or partial penetration.

Specifically, cellular activated carbon monoliths specification is 100 × 100 × 100mm.

Specifically, a level board is arranged as support in every 300mm height when cellular active carbon filling, lower part bee is prevented Socket active carbon be pressurized and it is damaged.

Specifically, seeing Fig. 3, lateral surface is respectively provided with stainless (steel) wire and fixes and (be not shown) in two layers of active carbon layer 16, Prevent airflow function from the cellular active carbon being caused to shift, active carbon layer medial surface stainless (steel) wire is detachable.

Specifically, stainless (steel) wire aperture is 5-30mm.

Specifically, seeing Fig. 2-Fig. 3, maintenance door 23 is located at active carbon case side and perpendicular to active carbon layer direction, maintenance door Width is no more than spacing between two layers of active carbon layer.Maintenance door is inside and outside two-layered steel plates, is filled between inside and outside two-layered steel plates There is heat-preservation cotton.

When it is implemented, 15 quantity of active carbon cabinet is no less than 2 and is adjacently positioned side by side, wind main pipe and desorption are adsorbed Wind main pipe is cascaded, the continuous absorption of so achievable whole set process device and desorption.

The course of work of the application is described below: being divided to absorption and desorption two processes.

Adsorption process: when active carbon case is in adsorption process, desorption valve 27, desorption inlet valve 28 is closed, is opened Inlet valve 24, absorption outlet valve 21 are adsorbed, exhaust gas containing VOCs enters activity through absorption inlet valve 24 from absorption wind entrance main pipe 25 Charcoal case inlet plenum 18-1, using activated carbon adsorption region is reached at support plate air inlet 17-1 and 17-2 two, exhaust gas is from activity During 16 lateral surface of layer of charcoal enters medial surface, VOCs ingredient is tightly held by activated carbon retention, and purified air is from support plate Enter discharge chamber 18-2 at the 17-3 of gas outlet, exports main pipe 22 using absorption wind is entered after absorption outlet valve 21.It is purified Pure air introduces system exhaust cylinder high altitude discharge eventually by absorption wind outlet main pipe 22.

Desorption process: when active carbon case is in desorption process, active carbon case interior air-flow direction and airflow direction when absorption On the contrary, inlet valve 28, desorption is desorbed in unlatching desorption valve 27 specifically, closing absorption inlet valve 24, absorption outlet valve 21 Hot wind enters active carbon case discharge chamber 18-2 by desorption inlet valve 28 from desorption wind inlet tube 20, using support plate gas outlet Enter 16 inside space of planes of active carbon layer at 17-3, hot-air is by the outside side flow of medial surface, and active carbon is in desorption hot wind It acts on lower temperature to rise, VOCs ingredient is parsed from desorption in active carbon and is blended in desorption wind, and exhaust gas is from support plate after desorption Enter inlet plenum 18-1 at air inlet 17-1 and 17-2 two, enters desorption wind outlet 26 using desorption valve 27.Desorption High-concentration waste gas afterwards introduces system subsequent catalyst burner eventually by desorption wind outlet 26 and carries out deep purifying.

Above is only an example of the present application, it is not intended to limit the scope of the patents of the application, it is all to use this Shen Please the constructional device that is formed of equivalent substitution or equivalent transformation made by specification and accompanying drawing content, be applied directly or indirectly in Other correlative technology fields, all fall within the application it is claimed within the scope of.

Claims (10)

1. a kind of VOCs adsorption/desorption active carbon case, which is characterized in that including cabinet (15) and be located at intracorporal two layers of the case The bottom surface of active carbon layer (16), the cabinet is equipped with air inlet and gas outlet, and two layers of active carbon layer is long along the cabinet Degree direction is arranged and perpendicular to the bottom surface of the cabinet, and two layers of active carbon layer is placed in the cabinet inner support plate (17), space using baffle (18) is divided into inlet plenum and discharge chamber between the support plate and the tank floor, it is described into Gas chamber is connected to space of planes on the outside of the air inlet and two layers of active carbon layer, the discharge chamber be connected to the gas outlet with it is described Space between two layers of active carbon layer, active carbon box body side be arranged maintenance door (23), the maintenance door open when and institute Space between two layers of active carbon layer is stated to communicate.

2. a kind of VOCs adsorption/desorption active carbon case according to claim 1, which is characterized in that the active carbon cabinet is Inside and outside two layers of shell is filled with heat-preservation cotton between the inner and outer shell.

3. a kind of VOCs adsorption/desorption active carbon case according to claim 2, which is characterized in that the inner housing is stainless Steel material, the heat-preservation cotton are alumina silicate heat-preservation cotton.

4. a kind of VOCs adsorption/desorption active carbon case according to claim 1, which is characterized in that the air inlet and described Gas outlet is respectively positioned on the bottom surface of the active carbon case.

5. a kind of VOCs adsorption/desorption active carbon case according to claim 1, which is characterized in that the support plate air inlet Shutter water conservancy diversion is arranged in place, and steel grating is arranged at the support plate gas outlet.

6. a kind of VOCs adsorption/desorption active carbon case according to claim 1, which is characterized in that two layers of active carbon layer For cellular active carbon, the honeycomb fashion activated carbon monoliths specification is 100 × 100 × 100mm, two layers of active carbon layer thickness It is identical, and thickness is not more than 400mm.

7. a kind of VOCs adsorption/desorption active carbon case according to claim 6, which is characterized in that the honeycomb fashion active carbon A level board is arranged as support in every 300mm height when filling.

8. a kind of VOCs adsorption/desorption active carbon case according to claim 6, which is characterized in that two layers of active carbon layer Interior lateral surface is respectively provided with stainless (steel) wire and fixes, and the active carbon layer medial surface stainless (steel) wire is detachable, the stainless steel mesh Diameter is 5-30mm.

9. a kind of VOCs adsorption/desorption active carbon case according to claim 1, which is characterized in that the maintenance door is located at institute State active carbon case side and perpendicular to the active carbon layer direction, the maintenance door width no more than two layers of active carbon layer it Between spacing.

10. a kind of VOCs adsorption/desorption active carbon case according to claim 9, which is characterized in that the maintenance door is interior Outer two-layered steel plates are filled with heat-preservation cotton between the inside and outside two-layered steel plates.