CN205925348U - Rotation type gas adsorbing device - Google Patents

Abstract

The utility model provides a rotation type gas adsorbing device, including have porous adsorption structure the gyro wheel, be used for with the sealing component for adsorption zone and desorption district is separated at least to the gyro wheel, sealing component is located one side of gyro wheel and with the surperficial in close contact with of gyro wheel, center on with the constitution the confined space in desorption district, near desorption district still further is provided with a gas and shelters from the component for shelter from the air current in flow direction desorption district at least in part, the area that the feasible gaseous desorption of desorption of can flowing through was distinguished reduces.

Description

A kind of rotary gas adsorption device

Technical field

This utility model is related to exhaust-gas treatment field and in particular to a kind of gas absorption containing VOC composition and processing meanss.

Background technology

There is the production technology that many can produce volatile organic gas (VOC) in semiconductor applications and chemical field, such as Need the photoresist coating in semiconductor applications, in chemical field, in the manufacture of paint and spraying, all can produce substantial amounts of VOC.This A little gas odor are unpleasant, and it is healthy, so needing timely to process to suck harm in a large number.But due to these gas Concentration is very low in atmosphere for body, certain fields only about 15ppm, even lower it is necessary to concentrate after could further process.

It is most commonly that in prior art that, using VOC gas treatment equipment as shown in Figure 1, this processing means includes one The roller 20 being made of porous materials, wherein porous material can be made up of ceramic material or activated carbon etc..One process Gas pipeline one end is connected to, by an air-valve 12, the space comprising VOC gas, is provided with one in processing gas pipeline Reason blower fan 10, promotes pending gas in a large number to flow rapidly into the binding domain of the first end of roller, subsequent VOC with first flow F1 Composition is absorbed and fixed in roller by the porous material surface in roller, and the clean gas after process pass through the second end stream of roller Go out processing gas pipeline, be sent back to original construction space so that the air quality in construction space meets staff's demand.Its Fraction processing gas are also shunted and send into a cooling pipe as cooling gas using second flow F2 by middle process blower fan, cold But cooling gas are sent into roller by first sealed port by gas pipeline, on roller by first sealed port institute around and Constitute the cooled region 26 on roller, the wherein first sealed port includes two radial sealing strips 27,25 and is located at rolling The circular arc sealing strip of wheel outer rim, these sealing strips are around one fan-shaped sealing opening of composition.These sealing strips are close A heat-resistant elastic material being close to roller adsorbing material is included, such as silica gel is to reduce letting out of high-temperature gas at roller surface Dew.Cooling air pipe also includes second end being located at roller with first sealed port identical the second sealed port.With The cooling gas of room temperature are heated to uniform temperature after passing through cooled region 26, such as through the second sealed port after 100-120 degree Trip roller is simultaneously admitted to desorption gas pipeline.It is provided with a desorption blower fan 50 in desorption gas pipeline to be used for driving desorption gas Flow into the roller 20 of the full VOC gas ingredients of absorption.It is additionally provided with a heater 30 in desorption gas pipeline to be used for heating From cooling air pipe through pre-warmed cooling gas so that the temperature of desorption gas reaches 200-210 degree.After heating Desorption gas pass through the of the 4th sealed port entrance roller 20 of a sector similar with described first, second sealed port Two end surfaces, by elevated temperature desorption gas heat the 4th sealed port around desorption region 24, desorption gas flow into rolling The desorption region 24 of wheel, the porous material in heating desorption region makes the VOC composition adsorbing in porous material surface inhale simultaneously Heat volatilization, is desorbed gas and takes away, roller also obtains desorption and can be adsorbed again when rotating to binding domain.It is rich in The desorption gas of VOC composition can flow out through the 3rd sealed port of the first end positioned at roller.Wherein the 3rd sealed port tool Have with the 4th sealed port identical structure and be close to roller first end surfaces, to prevent desorption gas to outward leakage, should 3rd sealed port is identical with the first sealed port structure, including two radial sealing strips 23,25 and externally-located circle Arc sealing strip.The final waste gas containing high concentration VOC composition be discharged to the outside by an exhaust apparatus 40 or other waste gas at Reason device is further processed.Above-mentioned first～the 4th sealed port together constitutes a containment member and is divided into roller Adsorption zone, desorption area and cooling zone.One driving means driving rolls 20 slowly rotates, the multiple sealed port in containment member Inswept roller 20 two ends all surface so that on roller 20 all regions realize the cooling of gas absorption-desorption desorption-roller in turn Such circulation, because the flow F1 of pending gas is much larger than the flow F2 of cooling gas/desorption gas, so last discharge Waste gas in VOC concentration also relatively pending gas increase to original F1/F2 times, typically 20 times, it is right finally to realize The concentration of VOC gas.

It is illustrated in figure 2 the side view at A in Fig. 1, be wherein located at three sealing strips 27 ', 25 ', 23 ' at roller second end Collectively form second and the 4th sealed port, 27 ', 25 ', 23 ' three sealing strips with positioned at 27,25,23 of roller first end Put correspondence.Two sealing strips 25 ' in desorption region 24 are connected mutually with 23 ' at the rotary shaft at roller center, form angle theta 1, Two sealing strips 27 ' and 25 ' of cooled region 26 are equally connected to form angle theta 2 at the rotary shaft at roller center.Angle theta 1, θ 2 selection is to need accurately to calculate, because angle crosses conference leads to be desorbed the very big needs of area of region and cooled region more High power could make the porous material being desorbed region be warmed up to sufficient temp, and cooled region is also required to the cooling gas of more various flow Body could cool down greater area of cooling gas, once and cooling gas flow becomes big, the heater of rear end has to higher Power desorption gas temperature just can be made to reach 200 degree.Further also result in binding domain area to diminish, gas treatment amount Decline.And only reduce above-mentioned angle theta 1, θ 2 and do not change heating power or rotating speed also results in the porous material in desorption region Material not yet reaches desorption temperature and is just rotated to follow-up cooled region and cooled it is impossible to be realized this utility model basic training Energy.So testing through long-term, the angle theta 1 generally selected in prior art, θ 2 have been fixed on optimal 30 degree, have so made Heating power is not too big, can guarantee that roller being capable of smoothly desorption simultaneously.

In addition, other multiple parameters also have relatively-stationary value, and such as cocnentration factor i.e. F2/F1 are 20 times；Turn Fast V setting value V0 is 6 turns/hour, and heating power P0 can be according to the flow F1 flowing into heater gas and target temperature 210 Degree conversion obtains.

So, prior art has had metastable initial set value：Predetermined power P0, preset rotation speed V0, θ 1 Predetermined angle θ 10 and default desorption gas flow F10, these parameters are determined by the ardware feature of roller itself, are not changing rolling In the case of wheel characteristic, these parameters can only be made small range optimization and cannot realize significantly changing.Fig. 3 show parameter setting From the Temperature Distribution schematic diagram on desorption and cooled region different orientations during above-mentioned preset value, wherein transverse axis is with sealing strip 23 ' is starting point, and the angle selection of θ 1 is identical with θ 2 to be θ 10, and θ 10 is 30 degree；The longitudinal axis is temperature T, and wherein Ta represents big temperature Degree (20 degree), Tr represents the minimum temperature (180 degree) that can be desorbed all VOC gases, and Th represents the output of heater Desorption gas temperature (200 210 degree).It is P0 for heating power as we can see from the figure, desorption gas flow F2 is F20, desorption region corresponding angle is the sector region of θ 10, from sealing strip 23 ' simultaneously for the roller continuously being rotated with V0 speed Temperature distribution history in the different orientations between sealing strip 27 ' is substantially linear change.Near sealing strip 23 ' due to firm By rotating into the region that can be desorbed gas heating so temperature near room temperature, slowly rotate desorption gas with roller Long-time heating roller is higher the closer to the temperature on sealing strip 25 ' roller.Because desorption gas are the second end (A from roller End) flow into, then flow out in roller first end (B end), so the roller temperature being located at two ends there is also gap, the temperature at A end Reach temperature Tr first at Pa position, now roller 20 is located at B end porous material temperature and is also far below Tr, so needing to continue Using the heating of elevated temperature desorption gas until B end also reaches Tr at Pb position, realize after maintaining the above enough time of B end temperature Tr Desorption desorption to B end VOC composition.The roller area just having completed to be desorbed continue to rotate past sealing strip 25 ' enter follow-up cold But region, roller side a and b temperature under the continuous coo1ing of cooling gas is gradually reduced, and is suitable for again until temperature is reduced to Enter binding domain and carry out VOC gas absorption.

Above-mentioned VOC gas treatment equipment can be good at completing the air cleaning to construction space, but or exists tight The defect of weight, energy resource consumption is excessive, and wherein substantial amounts of energy is used to heat desorption gas, so operating cost is high.

So need in the industry to seek a kind of new VOC gas treatment equipment structure or control method come energy-saving simultaneously Ensure that the treatment effect of the gas of composition containing VOC.

Utility model content

This utility model discloses a kind of rotary gas adsorption device, including have porous adsorption structure roller, in order to Described roller is at least divided into adsorption zone and the containment member in desorption area, described containment member is located at the side of described roller simultaneously With the intimate surface contact of roller, with constitute around described adsorption zone and desorption area sealing space it is characterised in that：Described de- It is further provided with a gas shield element, in order to block described desorption area at least in part, enabling stream near attached area The area in the desorption area through desorption gas reduces.

Wherein gas shield element is made up of resistant to elevated temperatures elastomeric material, realizes airtight while realizing and block air-flow.

Described gas shield element is at least partially embedded the sealing space that described desorption area is formed, and described gas At least part of surface of shield element is close to the surface of described roller.Between the surface of gas shield element and described roller also It is provided with elastic sealing elements, to stop desorption gas from flowing into the region between described gas shield element and described roller.

Described gas shield element is removably or unremovably to configure near described desorption area, and gas blocks unit Part also movably configures near described desorption area, described gas shield element can move between the different positions so that The area in desorption region or the position respective change of desorption gas can be flowed through.

The containment member in described desorption area is in integrally one fan-shaped, include a pair of apex sealing strip and curved shape outer carefully Strip of paper used for sealing, described gas shield element be one overall be in a sector plate body, cover at least in part by described apex sealing strip and Periphery sealing strip area encompassed.

This utility model rotary gas adsorption device also includes：Processing gas pipeline, in described processing gas pipeline Pending gas flows into the binding domain of described roller from one end of described roller, and after process, gas is from the other end stream of roller Go out；Desorption gas pipeline, in order to receive desorption gas, is additionally provided with heater, for heating in described desorption gas pipeline Described desorption gas；Controller, for controlling the heating work(of the rotating speed, the flow of pending gas and heater of described roller Rate.

The invention also discloses another kind of rotary gas adsorption device, including the rolling with porous adsorption structure Wheel, the containment member in order to be at least divided into adsorption zone and to be desorbed area described roller, described containment member is located at described roller Side and the intimate surface contact with roller, to constitute the sealing space around described adsorption zone and desorption area, its feature exists In：One gas shield element is arranged on the containment member in described desorption area, in order to partly to block described desorption area so that energy The area enough flowing through the desorption area of desorption gas reduces.

Gas shield element is a plate body structure, and it is made up of resistant to elevated temperatures elastomeric material.

Wherein gas shield element is at least partially embedded the sealing space that described desorption area is formed, and described gas At least part of surface of shield element is close to the surface of roller.Acceptable between the surface of gas shield element and described roller It is provided with elastic sealing elements, to stop desorption gas from flowing into the region between described gas shield element and described roller.

Described gas shield element is to be detachably arranged near described desorption area.

Gas shield element is movably to configure near described desorption area, and described gas shield element can be in difference Move between position, enabling flow through the area in desorption region or the position respective change of desorption gas.

Wherein rotary gas adsorption device, also includes：Processing gas pipeline, pending in described processing gas pipeline Gas flows into the binding domain of described roller from one end of roller, and after process, gas flows out from the other end of roller；Desorption gas Pipeline, in order to receive desorption gas, is additionally provided with heater in described desorption gas pipeline, for heating described desorption gas Body；Controller, for controlling the heating power of the rotating speed, the flow of pending gas and heater of described roller.

Brief description

Fig. 1 is prior art VOC gas treatment equipment structural representation；

Fig. 2 is the side view at A in Fig. 1；

Fig. 3 is the Temperature Distribution schematic diagram on desorption and cooled region different orientations in prior art；

Fig. 4 is the synchronous temperature reducing on desorption and cooled region different orientations when heating power, desorption gas flow Distribution schematic diagram；

Fig. 5 is that synchronous reduction is desorbed and cooled region different azimuth when heating power, desorption gas flow and roller rotating speed Temperature Distribution schematic diagram on angle；

When Fig. 6 is that this utility model synchronously reduces heating power, desorption gas flow, roller rotating speed and desorption region area Temperature Distribution schematic diagram on desorption and cooled region different orientations；

Fig. 7 a is this utility model sealed port schematic diagram and corresponding desorption region and cooled region schematic shapes；

Fig. 7 b is the axonometric chart of sealed port and roller shown in Fig. 7 a；

Fig. 8 a-8c is the sealed port schematic cross-section in X region in Fig. 7 b；

Fig. 9 a, Fig. 9 b are sealed port and desorption region, cooled region shape schematic diagrams in this utility model other embodiments.

Specific embodiment

Below in conjunction with accompanying drawing 2-9b, further illustrate specific embodiment of the utility model.

In order to reduce the power consumption of VOC gas treatment equipment, most straightforward approach is to reduce heater heating power, with When need the corresponding flow reducing desorption gas to remain able to maintain with the temperature ensureing the gas flowing into desorption region 24 Sufficiently high such as TH, can be desorbed the various VOC gas ingredients on roller.Below F20/2 is kept to flow, power is kept to P0/2 together When rotating speed V0 constant as a example the operation result of this scheme is also described.It is illustrated in figure 4 synchronous reduction heating power, desorption gas Temperature Distribution schematic diagram on desorption and cooled region different orientations during flow, in figure is visible to pass through desorption gas due to actual The heat of input decreases half so the material warms speed on roller significantly reduces, when roller rotates past θ 10 angle Make to be that A end is all not reaching to temperature Tr, so such control method cannot realize the desorption desorption of pair roller 20.

In order to increase, in the case of power reduction to P0/2, the heat being input to roller, can select to reduce desorption simultaneously The velocity of rotation of roller, such as synchronous be reduced to V0/2 namely 3 turn/hour, such rotating speed halves, turn over desorption region when Between be increased by 1 times, it is ensured that the heat being input to desorption region 24 keeps stable.It is illustrated in figure 5 synchronous reduction and heat work( Temperature Distribution schematic diagram on desorption and cooled region different orientations when rate, desorption gas flow and roller rotating speed.From Fig. 5 It can be seen that comparing the temperature profile in Fig. 3, it receives more heats intensifications faster in the A termination of roller, and B termination receives heat Less programming rate is slower.So A end temperature crosses the position Pa of Tr closer to sealing strip 23 ', but until sealing strip 25 ' place B The temperature at end does not still reach necessary temperature Tr, so B end can be led to exist using such control method not being desorbed VOC composition residual, multiple be circulated throughout after can accumulate more, lead to the blocking of whole roller cannot work.Due to desorption gas After flow reduces half, flow velocity also can reduce accordingly, and the heat of desorption gas can be absorbed or quilt by roller material at A end The volatilization of VOC composition is taken away, and roller material and the VOC composition at B end is heated at the B end that only a small amount of heat can be diffused into downstream, so Produce the situation that above-mentioned A, B two ends temperature spread increases.There is no feasible solution in order to solve this problem prior art, If increasing heating power is can be so that B end is more rapid reaches temperature Tr, but so the effect of energy-conservation will significantly subtract Weak, if reducing the rotating speed of roller 20 further, being such as reduced to V0/3 and can be achieved on the temperature at B end and reach in desorption region To Tr, but so can reduce the window of parameter selection, in the dense occasion of VOC, if roller rotating speed is too low can lead to In binding domain 22, adsorption saturation occurs, the phenomenon that VOC spills occurs, need to increase roller to prevent adsorption saturation from occurring Adsorption capacity, be generally to increase the thickness (A end is to the distance at B end) of roller.So roller 20 slow-speed of revolution rolls, need supporting Roller thickness thicker it is impossible to the relatively thin roller model of reselection.On the other hand, when the roller completing to be desorbed reaches cooled region When, the gas flow F20/2 being cooled down is is original profiling temperatures and thermal accumlation amount designs, once roller rotation The too low of rotary speed fall can lead to more thermal accumlations on roller desorption region, so existing cooling gas flow F20/2 It is not enough to the temperature (close to room temperature) being again decreased to the adsorbing material at roller A end from high temperature properly adsorb again, so exist Roller occurs, when cooled region 26 rotation has just enter into binding domain 22, the problem that VOC does not fully adsorb and reveals.So, it is Reduce various hardware setting and the control parameter that heating power is attempted, but or there are various problems is that desorption cannot be complete Become, or be that limited by application scenario, VOC gas can leak in binding domain simultaneously.

Fig. 6 is that this utility model synchronously reduces heating power, desorption gas flow, roller rotating speed and desorption region area When, the Temperature Distribution schematic diagram on desorption region and cooled region different orientations.This utility model in power reduction to P0/2, To F20/2, rotating speed is reduced to the synchronous area reducing the 3rd the 4th sealed port on the basis of V0/2 to desorption gas flow-reduction For original half, the area in corresponding desorption region is also changed into half.

Realize reducing the three, the 4th sealed port mode can be that structure as shown in Figure 7a is realized.Shown in Fig. 7 a For the 3rd sealed port, the inner side of one of sealing strip 23 can arrange a gas baffle 29, in order to hide at least in part Gear desorption area, enabling the area flowing through the desorption area of desorption gas reduces.For example, according to actual needs, can stop de- The area of attached region half.Gas baffle 29 can be fixed to the side wall of sealing strip 23, needs to adjust the blocking surface of gas baffle One piece of new gas baffle 29 can also be changed when long-pending.Gas baffle 29 can also be moveable, is existed by gas baffle 29 Sealing strip 23,25,28 moves around in the sector region being formed, and adjusts the size of desorption region interior air-flow area.Wherein gas Baffle plate 29 includes an edge 29e, edge portions proximate roller 20, and includes elastic heat material and be arranged on gas baffle 29 Near roller side, realize airtight between gas baffle and roller, with prevent desorption gas along gas baffle and roller 20 it Between gap horizontal proliferation, weaken the barrier effect of gas baffle 29.Wherein gas baffle 29 is sector, can be by sealing strip 23rd, 25,28 are divided into, around the sector region being formed, fan-shaped desorption region 24 (corresponding θ 1a) and the quilt that desorption gas flow through in a large number The closed area (corresponding θ 1b angle) that gas baffle 29 blocks, closed area does not have desorption gas to flow through or flow is much smaller than Flow in the desorption region 24 not being blocked.Have in desorption region that big flow desorption gas flow through is desorbed for effective Area, is blocked without the few desorption region of air-flow or throughput by gas baffle 29, due to not having enough high-temperature gases Input, roller cannot effectively heat therefore cannot be realized being desorbed, so being invalid desorption area.

Fig. 7 b is shown that the axonometric chart of above-mentioned Fig. 7 a, and Fig. 8 a-8c is the partial cross section of X region interior sealing port in Fig. 7 b Figure.In figure is visible, and gas baffle 29 one end is fixed to sealing strip 23, and the other end near baffle edge 29e includes a plane Lower surface, gas baffle lower surface presses close to the roller surface of rotation, with prevent a large amount of gases from lower surface and roller surface it Between gap horizontal proliferation, enter be blocked region roller in.As shown in Figure 8 b gas baffle 29 lower surface include one recessed Fall into, such structure still enables this utility model and stops that desorption gas flow into the purpose of roller through baffle plate 29.Fig. 8 c base This structure is identical with 9b, but is provided with an elastic sealing elements 29a, potted component in baffle plate 29 near the lower surface of roller Fit tightly between 29a and roller, prevent desorption gas from leaking in other region of the gas baffle back side.By dismantling gas The fixing end of baffle plate can replace different size gas baffle 29.This utility model gas baffle 29 is overall can also to be by heat-resisting Elastomeric material (as silica gel) is made, and flexible gas baffle plate one end is fixed to sealing strip or other fixed mechanism, and the other end is turned Dynamic roller 20 drives and goes out to extend to intermediate sealing strip 25, is close to roller surface simultaneously and completes to seal, such structure can be same When complete stop air-flow and sealing effect.Gas baffle may be mounted at the sealed port at the desorption gas inflow of roller A end, The sealed port that roller B end desorption gas flow out can also be arranged on, two kinds of structures can effectively stop that desorption gas flow through rolling Wheel desorption region, can realize the purpose of this utility model.

Fig. 9 a, 9b show this utility model two embodiments of other, and wherein Fig. 9 a shows that baffle plate 29 may not be Fan-shaped, only block a corner in fan-shaped desorption region, can have been changed in desorption region by moving left and right of baffle plate 29 Be blocked the area in region.It is linear that Fig. 9 b shows that two sealing strips 23,25 of the 3rd sealed port may not be, and leans on There is sweep at nearly home position.

Except gas baffle structure as shown by figures 8 a-8 c, gas baffle 29 can also be fixed on other components.This reality All it is connected with the airflow line with sealed port mating shapes with the multiple sealed port on novel seal component, by these Gas is conveyed in desorption region that airflow line surrounds into each sealed port or cooled region.Gas gear of the present utility model Plate one end can also be fixed to these on the airflow line side wall of sealed port, any fixed structure, as long as gas can be made Baffle plate 29 can be arranged close in the gas channel that roller is desorbed region, can stop that desorption gas pass through, also just can change Become actual effective desorption region area.

It should be appreciated that in this utility model, gas baffle can also equivalent deformation be other various structures and shape gas Body shield element, and gas shield element can regularly, actively, removably be mounted or positioned at desorption area near. Gas baffle 29 can also be various ways, such as gas baffle 29 can open up multiple holes or groove, one movably Blocking parts can move between multiple positions, and during first position, blocking parts is overlapping with the hole on gas baffle or groove complete Entirely block this some holes/groove, this some holes/groove of blocking parts partial occlusion during the second position.

These embodiments above-mentioned all illustrate to exist multiple be capable of being desorbed the adjustable design structure of region area, these set Meter structure can reduce the area in desorption region.This utility model VOC gas treatment equipment can also arrange a VOC concentration and survey Amount device, in the upstream processing blower fan 10, so can obtain the VOC concentration in the pending gas of inflow, VOC measurement of concetration The concentration values detecting are sent to control device 70 by device, select VOC gas by control device 70 according to VOC concentration values Processing meanss are operated in high concentration pattern or low concentration pattern.In low concentration pattern due to pending gas in VOC concentration low, Binding domain is not easy adsorption saturation it is possible to roller rotating speed is reduced to 1/4-1/6, and heating power can also synchronously drop Low, binding domain area can be adjusted to the 1/4-1/6 of original area by the movement of gas baffle 29.Contrary is detecting Work(can be heated by the 1/2 of higher such as original rotating speed of roller rotating speed setting to avoid adsorption saturation when VOC concentration is higher simultaneously Rate, desorption gas flow and binding domain area are also required to control in high value accordingly.So this utility model being capable of root According to concentration change adaptive adjustment cocnentration factor, in the high-concentration waste gas how pending gas concentration no matter flowing into exports VOC concentration is relatively stable.Due to cocnentration factor can be adjusted, when a large amount of tests are obtained with any one VOC concentration, right How the operational factor answered selects so that minimum desorption gas obtain the parameter of maximum cocnentration factor, and the desorption gas needing Body is fewer mean that need high-power heating gas fewer, power consumption is about few.In order to simplify device and improve reliability, A set of inclusion heating power, desorption gas flow/cocnentration factor, roller rotating speed, binding domain area can also be selected isoparametric Setup parameter, goes for various common occasions.There is the power of this utility model VOC processing meanss of this set setup parameter Consume and also account for the isoparametric existing skill of roller area 1/12 more than using cocnentration factor 20, roller rotating speed 6 turn/hour, binding domain Art power consumption is little.

This utility model can also be reduced to other ratios in addition to above-mentioned reduction power is original half, such as reduces To P0/3 or even P0/4, desorption gas flow F2 can also do synchronous reduction, as long as corresponding V0/4 rotating speed bottom roller will not There is adsorption saturation it is possible to reduce rotating speed further to reduce power output simultaneously.Because this utility model also changes simultaneously The area in desorption region makes the area 1/12 that the area being desorbed region accounts for whole roller be reduced to 1/18,1/24,1/36 etc., institute Synchronously can be subtracted on the basis of the desorption region area less than prior art with the technical scheme that this utility model discloses Few heating power, moreover it is possible to ensure original absorption and desorption effect, realizes the purpose of energy-conservation.

Above-mentioned synchronization reduce in proportion heating power, rotating speed, desorption gas flow, desorption region area be original design flow 1/2 scheme is one of this utility model most preferred embodiment, can be finely adjusted according to design needs in actual motion, such as de- Attached region area can reduce to less than the 1/2 such as 1/3 of original area, and so speed can be faster when desorption region for desorption air-flow. Desorption region area on roller of the present utility model can need to select different numerical value according to design it might even be possible to run In adjust automatically as needed, so this utility model is to provide a new regulating measure to VOC gas treatment equipment, lead to Overregulate desorption region area and account for the ratio of whole roller area and can adjust inflow binding domain to original ratio below 1/12 The 24 air velocity and roller Temperature Distribution between A end to B end.

This utility model can significantly improve the cocnentration factor of VOC gas, in the case of so same processing gas, finally exports Concentration after exhaust gas flow can be substantially reduced, so follow-up processing procedure, such as concentrate further and oxidizing fire etc. be required The equipment volume wanted and cost are all decreased obviously.

Roller in this utility model can also be perpendicular annular, be provided with outside circle ring center space and annulus Gas pipeline.The upper inclusion adsorption section of annulus, desorption section and cooling section, processing gas flow into circle ring center space and then from center Passing through above-mentioned adsorption section, same desorption and cooling gas to annulus outside vertical is also to pass through annulus in annulus inward-outward direction The desorption section of shape and cooling section.This utility model can also be applied to the roller of this structure, as long as modification is corresponding is desorbed area Domain sealed port area.This utility model is readily adaptable for use in the VOC gas treatment equipment of this framework.

Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that on The description stated is not considered as to restriction of the present utility model.After those skilled in the art have read the above, for Multiple modifications and substitutions of the present utility model all will be apparent from.Therefore, protection domain of the present utility model should be by appended Claim limiting.

Claims (15)

1. a kind of rotary gas adsorption device, including having the roller of porous adsorption structure, in order at least to divide described roller It is divided into adsorption zone and the containment member in desorption area, described containment member is positioned at the side of described roller and tight with the surface of roller Contact, with constitute around described adsorption zone and desorption area sealing space it is characterised in that：Near described desorption area also further It is provided with a gas shield element, in order to block described desorption area at least in part, enabling flow through the desorption of desorption gas The area in area reduces.

2. rotary gas adsorption device as claimed in claim 1 is it is characterised in that described gas shield element is by high temperature resistant Elastomeric material make.

3. rotary gas adsorption device as claimed in claim 1 or 2 it is characterised in that described gas shield element at least Be partially embedded into the sealing space that described desorption area is formed, and at least part of surface of described gas shield element with described The surface of roller is close to.

4. rotary gas adsorption device as claimed in claim 3 is it is characterised in that described gas shield element and described rolling It is additionally provided with elastic sealing elements, to stop desorption gas from flowing into described gas shield element and described rolling between the surface of wheel Region between wheel.

5. rotary gas adsorption device as claimed in claim 1 or 2 is it is characterised in that described gas shield element is can Releasably or unremovably configure near described desorption area.

6. rotary gas adsorption device as claimed in claim 1 or 2 is it is characterised in that described gas shield element is can It is movably arranged near described desorption area, described gas shield element can move between the different positions, enabling stream The area in the desorption region through desorption gas or position respective change.

7. rotary gas adsorption device as claimed in claim 1 or 2 is it is characterised in that the containment member in described desorption area Overall is in a sector, and including the periphery sealing strip of a pair of apex sealing strip and curved shape, described gas shield element is whole for one Body is in the plate body of a sector, covers at least in part by described apex sealing strip and periphery sealing strip area encompassed.

8. rotary gas adsorption device as claimed in claim 1 is it is characterised in that also include：

Processing gas pipeline, the pending gas in described processing gas pipeline flows into described roller from one end of described roller Binding domain, after process, gas flows out from the other end of roller；

Desorption gas pipeline, in order to receive desorption gas, is additionally provided with heater in described desorption gas pipeline, for adding The described desorption gas of heat；

Controller, for controlling the heating power of the rotating speed, the flow of pending gas and heater of described roller.

9. a kind of rotary gas adsorption device, including having the roller of porous adsorption structure, in order at least to divide described roller It is divided into adsorption zone and the containment member in desorption area, described containment member is positioned at the side of described roller and tight with the surface of roller Contact, with constitute around described adsorption zone and desorption area sealing space it is characterised in that：Containment member in described desorption area Upper setting one gas shield element, in order to partly to block described desorption area, enabling flows through the desorption area of desorption gas Area reduces.

10. rotary gas adsorption device as claimed in claim 9 is it is characterised in that described gas shield element is a plate Body structure, it is made up of resistant to elevated temperatures elastomeric material.

11. rotary gas adsorption devices as described in claim 9 or 10 it is characterised in that described gas shield element extremely Partially embed the sealing space that described desorption area is formed, and at least part of surface of described gas shield element and rolling The surface of wheel is close to.

12. rotary gas adsorption devices as described in claim 9 or 10 it is characterised in that described gas shield element with Be additionally provided with elastic sealing elements between the surface of described roller, with stop desorption gas flow into described gas shield element with Region between described roller.

The 13. rotary gas adsorption devices as described in claim 9 or 10 are it is characterised in that described gas shield element is It is detachably arranged near described desorption area.

The 14. rotary gas adsorption devices as described in claim 9 or 10 are it is characterised in that described gas shield element is Movably configure near described desorption area, described gas shield element can move between the different positions, enabling Flow through the area in desorption region or the position respective change of desorption gas.

The 15. rotary gas adsorption devices as described in claim 9 or 10 are it is characterised in that also include：

Processing gas pipeline, the pending gas in described processing gas pipeline flows into the absorption of described roller from one end of roller Region, after process, gas flows out from the other end of roller；

Desorption gas pipeline, in order to receive desorption gas, is additionally provided with heater, for heating in described desorption gas pipeline Described desorption gas；

Controller, for controlling the heating power of the rotating speed, the flow of pending gas and heater of described roller.