CN206867936U - Exhaust gas adsorption device and adsorption desorption system - Google Patents

Abstract

The utility model discloses a kind of exhaust gas adsorption device and adsorption desorption system, wherein exhaust gas adsorption device, including：Absorbing unit, the built-in adsorbent of the absorbing unit, equipped with multiple, and absorbing unit has inlet and outlet, and equipped with bypass, wherein, import exports the export for gas after absorption, bypassed for connecing exhaust device to import waste gas；Heater, for carrying out dry type heating to absorbing unit；And headstock gear, set corresponding to the inlet and outlet, the keying for inlet and outlet；Wherein, the headstock gear of each absorbing unit has independent control device or all absorbing units are divided into multigroup, the headstock gear Synchronization Control in group, and the headstock gear between group controls respectively.Foundation the utility model can effectively improve desorption efficiency and mitigate produced gas subsequent treatment burden after desorption.

Description

Exhaust gas adsorption device and adsorption desorption system

Technical field

It the utility model is related to a kind of exhaust gas adsorption device, and a kind of adsorption desorption system.

Background technology

Such as the industry such as spraying, packages printing and rubber, caused waste gas is mainly by volatile solvent, diluent molecule Formed with nonvolatile coating cloud molecular mixing, wherein volatile solvent and diluent main component is benzene-like compounds, such as benzene, first The organic matters such as benzene, dimethylbenzene, this kind of waste gas are referred to as organic exhaust gas, it is necessary to administer.

The processing method of organic exhaust gas mainly has absorption process, photocatalytic method, plasma method, flame combustion method, urged at present Change combustion method, membrane separation process, condensation method and absorption method.Wherein, it is relatively most ripe to absorb law technology, but absorbs and generally requires to adopt With suitable solvent, solvent is also possible to that secondary pollution can be produced in itself；Generally, also need to regularly replace solvent, cost is higher, it is more difficult to Popularization and application.

Photocatalytic method and plasma method are administered suitable for middle low concentration gas, big, dense to this air quantity of such as paint industry High operating mode is spent, because its treatment effeciency is low, and it is very low in the industry utilization rate.

Flame combustion and catalytic combustion method investment cost are high, are difficult to undertake high capital cost for medium-sized and small enterprises With.

The membrane separation process rate of recovery is not high, and under current technical conditions, its discharge does not reach national environmental standard requirement also.

Condensation method needs integrally to carry out waste gas deep condensation, and most of cold consumption is on cooling air, investment and fortune Row is costly.

What application was wider at present is absorption method, and absorption method is absorption generally with zeolite, NACF, activated carbon granule etc. Agent, wherein most wide with charcoal absorption application.But, activated carbon has certain adsorption capacity, and its adsorption capacity is with work Make the passage of time and be gradually reduced, until losing adsorption capacity.Therefore need periodically to be desorbed activated carbon or more renew Activated carbon.

In the utility model, illustrated by taking activated carbon granule as an example, but it is understood that, it is related to desorption, adsorbs Adsorbent involved by method is directed to the problem of desorption substantially, therefore, other suctions is equally applicable to the desorption of activated carbon granule Attached dose.

In addition, on the waste gas in subject name, it should be interpreted broadly, for such as activated carbon, it is to having in waste gas Whether evil composition is adsorbed completely, and whether harmless gas has been absorbed, and desorption rate during desorption, whether to be completely all desorbed object It is related to the attribute of adsorbent and the process conditions of adsorption desorption, and it is unrelated with its title.

The mode of water vapour or hot nitrogen purging, such as Chinese patent literature are typically chosen to the desorption of activated carbon at present CN102389684A, its desorption and regeneration are carried out, after desorption using vapor as medium by the form that vapor is passed through to adsorption tanks Organic exhaust gas steam inevitably converge be mixed into vapor, cooled down, finally also needed into water-filling subsequently into condenser Recovery is realized in the separation of steam and organic exhaust gas.This kind of desorption mode depends on vapor carrying heat and adsorbent is delivered to from outside Duct, adsorbent thermal conductivity factor is small, and heat transfer rate is slow, and desorption time is partially long；Meanwhile activated carbon meeting absorbed portion vapor, Need to be further dried, can be used after cooling, required time length, energy consumption is big, and influence is adsorbed next time；Condensed water is although enter Go the separation of organic exhaust gas, but still some organic exhaust gas can be mixed into, produce water pollution；Correspondingly, the organic matter of recovery contains Water rate is high, increases subsequent technique separation costs；In addition, vapor, which is attached in equipment, to produce corrosion to equipment.

Chinese patent literature CN203264523U then discloses a kind of retracting device for the organic exhaust gas that paints, and it is mainly used The method of hot nitrogen desorption, so that the separation problem of water and organic exhaust gas is not present, but nitrogen high expensive；In addition, this is de- Nitrogen need to be heated to higher temperature by subsidiary formula formula（80~400℃）, heat is then passed to by absorbent interior by nitrogen, it is necessary to Energy conversion is completed, energy consumption is of a relatively high, and conducting heat has indirect, and speed is slow；Its later stage need to carry out depth to desorption gas simultaneously Cooling treatment, it is cooled to by higher temperature below organic exhaust gas boiling point, condensation energy consumption is huge.

In addition, absorbent charcoal adsorber is generally adsorption box or adsorption tanks, such as Chinese patent literature CN205796889U, Its its use the activated carbon adsorption layer of multichannel drawer type, and can easily change activated carbon, add charcoal absorption area While do not increase charcoal absorption casing product, but it can not be realized to the online desorption of activated carbon, and activated carbon can only be transferred to not Place's desorption.

The U of Chinese patent literature CN 205760466 disclose a kind of charcoal absorption jar structure, and it is in absorbent charcoal adsorption tank The side of body is provided with desorption import, desorption import inside installation desorption import airtight valve, and desorption import is inhaled with being located at activated carbon The desorption air-flow of attached tank interior enters chamber and is connected, and the top that chamber is entered in desorption air-flow is provided with upper active layer of charcoal, is desorbed air-flow The lower section for entering chamber is provided with active lower layer of charcoal.Specifically, it is by the way that traditional thicker monolayer active layer of charcoal is divided into Separated two relatively thin upper active layer of charcoal and active lower layer of charcoal down, make the activated carbon desorption required when being desorbed Heat is substantially reduced, while the heat after desorption can be made easily to disperse, and eliminates the safety caused by heat can not disperse Hidden danger, but owner need to buy two equipment alternating switchings and just waste gas pollution control and treatment system can be made continuously to run, increase investment.

Utility model content

In view of this, after the purpose of this utility model is that desorption efficiency can be effectively improved and mitigate desorption by providing one kind The exhaust gas adsorption device of produced gas subsequent treatment burden；The utility model additionally provides a kind of using waste gas absorption dress The adsorption desorption system put.

According to embodiment of the present utility model, there is provided a kind of exhaust gas adsorption device, including：

Absorbing unit, the built-in adsorbent of the absorbing unit, equipped with multiple, and absorbing unit has inlet and outlet, and matches somebody with somebody There is bypass, wherein, import exports the export for gas after absorption, bypassed for connecing exhaust device to import waste gas；

Heater, for carrying out dry type heating to absorbing unit；And

Headstock gear, set corresponding to the inlet and outlet, the keying for inlet and outlet；

Wherein, the headstock gear of each absorbing unit there is independent control device or all absorbing units be divided into it is multigroup, Headstock gear Synchronization Control in group, the headstock gear between group control respectively.

Above-mentioned exhaust gas adsorption device, alternatively, each absorbing unit at least have an adsorption desorption cylinder, when adsorption desorption cylinder has When multiple, concatenate between each other.

Alternatively, the adsorption desorption cylinder is furnished with the container for being used for containing the adsorbent；The container corresponds at least to import Mesh is evenly equipped with the end of outlet.

Alternatively, equipped with a housing for being provided with exhaust gas entrance and waste gas outlet；

A dividing plate is provided with housing, for enclosure interior space to be separated into two parts, one part is equipped with described useless Gas entrance, another part are furnished with the waste gas outlet；

Dividing plate, which is gone into battle, shows pilot hole, and absorbing unit is hermetically assemblied on pilot hole, is located at a part so as to export, Import is located at another part.

Alternatively, absorbing unit is fixed on the pilot hole；Or

Absorbing unit, which has, is directed to part, and this is directed to part and cooperatively forms prismatic pair with the pilot hole hermetic seal； Correspondingly, the outlet and import configuration are provided with the first sealing at the both ends of prismatic pair moving direction, and relative to outlet Device, the second sealing device is provided with relative to import；

The headstock gear is configured to：One of first sealing device and the second sealing device have in prismatic pair moving direction Impulse stroke, so as to move closure one of import or export to absorbing unit, and further promoted after being engaged with absorbing unit Absorbing unit and to block import or export another；

Correspondingly, absorbing unit is furnished with contrast to the resetting means on prismatic pair impulse stroke direction.

Alternatively, the seal member of the first sealing device and second sealing device is seal interface with flexible The flat components or convex surface part of part.

Alternatively, the absorbing unit is vertical structure, and correspondingly, the dividing plate is horizontally disposed with；

The resetting means is arranged on the bottom of absorbing unit.

Alternatively, corresponding to the stop up and down of adsorbent equipment impulse stroke, accordingly filled equipped with position limit device and lower limit Put.

Alternatively, equipped with a housing for being provided with exhaust gas entrance and waste gas outlet；

A plane clapboard is provided with housing, for enclosure interior space to be divided into two parts, and last point up and down It is another to be furnished with the waste gas outlet or relative both ends one is furnished with the exhaust gas entrance to next part in the horizontal direction, enter And provided with exhaust gas entrance or last point of waste gas outlet or next part equipped with one perpendicular to plane clapboard auxiliary every Plate, for isolating exhaust gas entrance and waste gas outlet；

Dividing plate, which is gone into battle, shows pilot hole, and absorbing unit is hermetically assemblied on pilot hole.

Alternatively, the heater is the electric heater unit being fitted on absorbing unit or is coiled on absorbing unit Heat exchange coil.

According to embodiment of the present utility model, a kind of adsorption desorption system equipped with foregoing exhaust gas adsorption device is additionally provided System, the exhaust device are connected by setting valvular pipeline with the bypass.

Above-mentioned adsorption desorption system, alternatively, the exhaust device are vacuum recovering apparatus, and the vacuum recovering apparatus includes：

Condensing unit, at least equipped with one-level, by condensing organic exhaust gas whole or the portion that will have in the gas pumped out Divide and become liquid phase；

Retracting device, condensing unit is accepted to house liquid phase substance；

Additional handling device, condensing unit is accepted, further to handle the harmful components in gaseous substance；And

Vacuum system, it is connected to the gas outlet of additional handling device.

Alternatively, preferably condensing unit is multistage, and liquid phase substance caused by multistage condensing unit imports the recovery Device, rear stage connect the gas phase outlet of previous stage.

Alternatively, it is heat exchanger to be introduced directly into exhaust gas adsorption device and export the first order condensing unit of waste gas, correspondingly, The hot-fluid side connection waste gas of the heat exchanger, cold flow side is then furnished with heat reclamation device.

Alternatively, the heat reclamation device is furnished with storage bin, and the cold fluid formed by circulating pump cooperation pipeline Side EGR；

Wherein, storage bin is furnished with thermal medium heater；

Correspondingly, coil pipe of the heater for configuration on absorbing unit, coil pipe access cold flow side EGR, And positioned at the prime of heat exchanger.

According to embodiment of the present utility model, it uses dry type mode of heating so that the organic exhaust gas of absorption on the sorbent Volatilization, becomes gas phase in other words, and pump drainage can produce negative pressure, and air pressure is than under conditions of relatively low in other words under condition of negative pressure, organic waste The boiling point of gas reduces, and so as to improve desorption efficiency, generally speaking, negative pressure coordinates heating effectively to improve desorption effect Rate.Due to being heated using dry type, the water vapour content in the gas pumped out is relatively low, and contained vapor is generally only to inhale The aqueous vapor of attached dose of itself absorption, so as to which the subsequent treatment of the gas pumped out is relatively simple.

Brief description of the drawings

Fig. 1 is the exhaust gas adsorption device structural representation equipped with desorption structure in an embodiment.

Fig. 2 is that retracting device schematic diagram is desorbed in an embodiment（With heat reclaim unit）.

Fig. 3 is that retracting device schematic diagram is desorbed in an embodiment（Heat reclaim unit is not set）.

Fig. 4 is De contamination assembly structure schematic diagram in an embodiment.

Fig. 5 is De contamination assembly structure schematic diagram in another embodiment.

Fig. 6 is the overlooking the structure diagram corresponding to Fig. 4.

In figure：1. casing, 2. exhaust gas entrances, 3. waste gas outlets, 4. adsorption desorption cylinders, 5. bottom sealing devices, 6. tops are close Seal apparatus, 7. lower transmission mechanisms, transmission mechanism on 8., 9. separating devices, 10. dividing plates, 11. position limit devices, 12. lower limits dress Put, 13. thermal medium outlet interfaces, 14. thermal medium ingress interfaces, 15. vacuumize interface, 16. cage type storage devices.

17. deep cooling train condenser, 18. heat regenerators, 19. deep cooling unit air coolers, 20. gas-liquid separators, 21. air coolings Device, 22. expansion valves, 23. air-cooled gas-liquid separators, 24. deep freezers, 25. vacuum systems, 26. condensate recovery devices, 27. normal pressures Solvent recovery tank, 28. compressors, 29. thermal medium heaters, 30. thermal medium storage bins, 31. thermal medium circulating pumps.

Embodiment

Exhaust gas adsorption device shown in Fig. 1, it is the exhaust gas adsorption device equipped with desorption structure, it will be appreciated that equipped with not generation Table is whole, and in other words, the exhaust gas adsorption device is furnished with the part-structure of desorption apparatus.Similarly, adsorbed for industrial waste gas Device, it can be used as on the ground or thing is determined in interior, absorption can be fixedly installed with desorption, and the suction that composition is relatively fixed setting takes off Attached system.

The configuration desorption structure on exhaust gas adsorption device, it is selectively to inhale the functional parts of desorption installed in waste gas Adsorption device side, driving in other words comes out " enabled " property isolation of components of functional parts, such as exhaust device, and it is realized according to this The Functional portions of desorption are provided in the bypass on absorbing unit, vacuumize interface as shown in Figure 1, " enabled " property part It is then the part of formation vacuum or negative pressure, such as vacuum system according to this.

It is more conventional in fields such as machinery, chemical industry on dry type, such as dry cell, substantially it is dry type battery, it is not used Liquid flux.For another example dry-type transformer, substantially it is not use liquid to be insulated or isolated, used liquid is insulation Oil.Dry type is not precluded from the use of liquid, and simply liquid is not in contact with object or activation part, such as in the present embodiment In, so-called dry type, it may be that can not can not be contacted with object with activated carbon, but be not excluded for heater itself function The use to liquid is realized, such as the circulatory system of thermal medium is related in Fig. 2, it exports heating part to be arranged on adsorption desorption Heating coil on cylinder 4, general heating coil are also known as heat exchange coil.

Well known, such as water, it is gradually lowered with the reduction of air pressure, boiling point, the most it is well known that plateau The boiling point of regional water is spent 80 more（It is Celsius）Left and right.People are not familiar with, but are general knowledge in conventional technique field, example Such as water, it is in 0.001MPa（Equivalent to 0.01 atmospheric pressure, specifically 1KPa）, its boiling point is 6.982 degrees Celsius, 0.002MPa When boiling point be 17.511 degrees Celsius, boiling point during 0.003MPa is 24.098 degrees Celsius ..., and boiling point during 0.07MPa is 89.98 degrees Celsius, with China highlands relatively, 0.10MPa（Standard atmospheric pressure is 0.1013MPa）When boiling point It it is 99.93 degrees Celsius, the boiling point of water and air pressure positive correlation, the boiling point of water and all material of the relation pair of air pressure are applicable.

Heating cooperation vacuumizes, and the rate of volatilization of organic exhaust gas can be effectively improved, so as to effectively improve activated carbon Desorption ability.

In the embodiment shown in fig. 1, it is the waste gas absorption equipped with desorption structure relative to the exhaust gas adsorption device of routine Device, is equipped with activated carbon in its adsorption desorption cylinder 4 shown in the figure, the absorption in working condition available for waste gas, in other words To the adsorption treatment of waste gas, when needing desorption, the upper and lower opening of the adsorption desorption cylinder 4 for example shown in Fig. 1 can be closed, is vacuumized Interface 15 is opened, and thermal medium ingress interface 14 and thermal medium outlet interface 13 are opened, to adsorption desorption cylinder 4 while heating, while taking out Vacuum, to form negative pressure in adsorption desorption cylinder 4.

It should be appreciated that negative pressure is using a standard atmospheric pressure as 0 point of term, less than one standard atmospheric pressure is referred to as negative Pressure, negative pressure can simply be converted into absolute pressure, i.e. absolute pressure, and absolute pressure is using 0Pa as 0 point, uses a normal atmosphere Pressure directly with negative pressure and as absolute pressure.The general useful vacuum degree of absolute pressure represents, such as vacuum is 1mbar（1mbar= 100Pa）, negative pressure is -999mbar（In simple computation, a standard atmospheric pressure is drawn up as 0.1MPa=1bar=1, 000mbar=100,000Pa, also drawn up as 1 kgf, i.e. 1kgf in common saying）.

So as to which it can be seen from accompanying drawing 1, for needing to configure the exhaust gas adsorption device for being desorbed structure, its basic structure should Including：Absorbing unit, heater, headstock gear, and aid in being equipped with the assembling structure for heating, required for pump drainage.

Primarily with respect to absorbing unit, an adsorption desorption cylinder 4 as shown in Figure 1 can be used as an absorbing unit, and In structure as shown in Figure 5 and Figure 6, the closing of different adsorption desorption cylinders 4 can produce different connection in series-parallel relations, to a certain degree On, absorbing unit can be with dynamic mapping.

The built-in activated carbon of absorbing unit, in the construction shown in fig. 1, it is about a tubular structure, and waste gas is from lower warp Cross adsorption desorption cylinder 4 to walk upwards, into the upper space of dividing plate 10, then discharged by waste gas outlet 3.

Absorbing unit is equipped with multiple, it is intended that partial adsorbates unit on the one hand can be used according to treating capacity, it is another Aspect, can use partial adsorbates unit to carry out the processing of waste gas, and the absorbing unit for not carrying out exhaust-gas treatment to remaining takes off Attached processing, in other words, it is not necessary to stop production, it is possible to realize the online desorption of part absorbing unit.

Matched, it will be appreciated that for absorbing unit, it is respectively provided with the inlet and outlet of determination, so can Make adsorption layer of the waste gas by absorbing unit, be active carbon layer herein, complete the adsorption treatment of waste gas, this be absorbing unit must Configure.As for the position set by the inlet and outlet of absorbing unit, farthest to utilize active carbon layer as main bar Part, such as the wound packages adsorption desorption cylinder 4 shown in Fig. 1, its lower nozzle is import, and upper nozzle is outlet, so as to axially can Sufficiently utilize the cage type storage device 16 of position in the inner, 16 built-in activated carbon of cage type storage device.

Upper end as the adsorption desorption cylinder 4 as shown in Figure 1 of absorbing unit, which is provided with, vacuumizes interface 15, is adsorption desorption cylinder 4 bypass, for the organic exhaust gas steam of the gasification of pump drainage outward, reduce the air pressure in adsorption desorption cylinder 4.

On the position of bypass, as it was previously stated, the upper end or top of absorbing unit should be correspondingly positioned at, on the other hand, easily reason Solution, the base attribute that hot organic exhaust gas steam necessarily rises, is advantageous to the guide of organic exhaust gas steam.

As it was previously stated, to improve desorption efficiency, pump drainage vacuumizes needs and coordinates heating in other words, to accelerate waving for organic matter Hair, while can not make to be mixed into vapor in the steam that organic matter volatilizes again, therefore, heater is configured, and to organic matter Need to heat using dry type, as shown in Figure 1 in coil pipe of the outer surface of cage type storage device 16 provided with heating, coil pipe Circulated thermal medium, and the thermal medium is constrained by coil pipe, can be isolated with activated carbon, so as to produce the stream in heater Body is mixed into the situation of organic exhaust gas, makes the subsequent treatment of organic exhaust gas relatively easy.

And then to meet on-line regeneration, the online desorption of activated carbon, configures the headstock gear in other words, on opening and closing Device may refer to bottom sealing device 5, the top seal 6 shown in Figure of description 1, wherein bottom sealing device 5 Relative with the import of adsorption desorption cylinder 4, top seal 6 is relative with the outlet of adsorption desorption cylinder 4, and sealed bottom is also show in figure Device 5 is driven by lower transmission mechanism 7, and top seal 6 is driven by upper transmission mechanism 8, de- to inhaling so as to realize The closure of the attached inlet and outlet of cylinder 4, is closed in other words, reverse drive lower transmission mechanism 7 and upper transmission mechanism 8, then realizes import With the unlatching of outlet.

In the construction shown in fig. 1, each adsorption desorption cylinder 4 is provided with independent headstock gear, four phases be present in Fig. 1 Same absorbing unit, i.e. four adsorption desorption cylinders 4, each adsorption desorption cylinder 4 are respectively provided with corresponding sealing device, and driving sealing The transmission mechanism of device, therefore, by respective transmission mechanism, the keying of each adsorption desorption cylinder 4 can with independent control, and And in the construction shown in fig. 1, four adsorption desorption cylinders 4 belong to parallel-connection structure, a certain adsorption desorption cylinder 4 is closed, and does not influence other suctions It is desorbed the normal work of cylinder 4.

So as to be even desorbed to the activated carbon in part adsorption desorption cylinder 4, the shadow of processing of the whole equipment to waste gas Ringing also can be than relatively low, and the disposal ability on influenceing exactly overall has declined, such as four adsorption desorption cylinders 4, and one of them enters Row desorption, the other three carry out the adsorption treatment of waste gas, reduce by an adsorption desorption cylinder 4, caused to influence to be mainly that waste gas enters The inlet pressure of mouth 2 can increased, but overall disposal ability declines and unobvious.

In the structure shown in Fig. 5, U-shaped path that two groups of adsorption desorption cylinders 4 are formed by separating device 9 and dividing plate 10 And it is divided into two groups, and it is to connect on the whole between two groups, it is in parallel between the adsorption desorption cylinder 4 in group, respective headstock gear can be passed through Control, its connection in series-parallel relation can change, and form hybrid connected structure.

In certain embodiments, the adsorption capacity of single absorbing unit, such as the knot shown in Fig. 5 can be realized by series connection Structure, the series connection of essence is formed between two groups of adsorption desorption cylinders 4, the activated carbon path that waste gas passed through substantially is extended, so as to have There is more preferable adsorption effect.

And then as shown in fig. 6, what if Fig. 5 reflected is one group two-by-two, then represented by Fig. 6 is then at one group two-by-two Under conditions of form the parallel connections between two under the conditions of one big group big group adsorption desorption cylinders 4.

In addition, as it was previously stated, series-parallel change between adsorption desorption cylinder 4 can be realized by control, including locate in connection in series-parallel In the quantity of the adsorption desorption cylinder 4 of such as parallel relationship or series relationship, therefore, in some embodiments, each absorbing unit Headstock gear can have independent control device, on this condition, even mutually discrete, but not influence co- controlling.

Or in some embodiments, all absorbing units are divided into multigroup, the headstock gear Synchronization Control in group, opening between group Device is closed to control respectively.

In certain embodiments, adsorption desorption cylinder 4 needs fixed or is arranged on by kinematic pair on dividing plate 10, activated carbon It is relatively large to change difficulty, thus, in a preferred embodiment, activated carbon is packaged using independent container, is then formed Filter core, during replacing, equivalent to the direct replacing of filter core, rather than the activated carbon being scattered.The adsorption desorption cylinder, which is furnished with, to be used to contain The container of the activated carbon；The end that the container corresponds at least to inlet and outlet is evenly equipped with mesh.

The embodiment being fixedly installed for adsorption desorption cylinder 4, the structure choice of container have wider array of adaptability, and its shape can To be taper, cylindrical shape, spindle, square barrel shape, and independent tank structure, preferably taper, the dress of adsorbent both can guarantee that The amount of filling out, and can reduce the resistance that waste gas flows through adsorbent layer.

The container can be wire mesh cage structures, i.e. vessel surface is all provided with mesh, in other words similar cage type dress therewith Put, the cage device surface spreads all over aperture, and aperture is less than absorbent particles, that is, the particle diameter of activated carbon, both ensures adsorbent Particle is not spilt outside cage, and and can ensures that waste gas can pass through aperture.

The structure of filter core can be produced and must influenceed on the shell structure of such as adsorption desorption cylinder 4, in Fig. 1, adsorption desorption cylinder 4 Profile is pipe shell mechanism, and the optimal cage device being adapted to is preferably cylindrical structural, has the suitability in structure, And be advantageous to improve the sealing between cage device and the inner wall of tube shell of adsorption desorption cylinder 4.This structure is particularly suitable for use in adsorption desorption cylinder 4 Movable situation.

In the construction shown in fig. 1, four adsorption desorption cylinders 4 are assembled in a casing 1, and casing 1 is a housing knot Structure, by configuring the shell structure, be advantageous to make overall outward appearance more attractive, while be also beneficial to unification and adsorption desorption cylinder 4 is entered Row pipe arrangement.

Pipe arrangement is divided into two parts in the embodiment shown in fig. 1, by space in housing, and the dividing plate 10 of use level is by shell Internal space is divided into two parts up and down, and space located above is equipped with waste gas outlet 3, and the space being located below is equipped with waste gas and entered Mouth 2.

In general, such as casing 1, usual understanding is that it has cuboid profile, but for housing, only use In water conservancy diversion waste gas, therefore, its profile is not limited to body structure, and such as columnar pot type/tubular structure is equally applicable.

In the construction shown in fig. 1, to be advantageous to the assignment of traffic of waste gas, the box side where exhaust gas entrance 2 is with giving up Box side where gas outlet 3 is relative.

In structure shown in Fig. 1 and Fig. 5, in addition to dividing plate 10, separating device 9 is also equipped with, certainly, shown in Fig. 1 In structure, the configuration that separating device 9 be present with exhaust gas entrance 2 and waste gas outlet 3 contradicts, and is only used for illustrating, and expression has this Class is set.Fig. 5 configuration structure has then embodied can enter professional etiquette by dividing plate 10 and separating device 9 to the circulation path of waste gas Draw, meanwhile, the mutual relation of assembly method and adsorption desorption cylinder 4 to adsorption desorption cylinder 4 is adjusted, such as institute's table in Fig. 5 Series relationship between the two groups of adsorption desorption cylinders 4 shown, the parallel relationship in group between adsorption desorption cylinder 4.

In structure shown in Fig. 1, adsorption desorption cylinder 4 is vertically arranged, however, it will be understood that its be horizontally disposed with and coordinate every Plate 10 remains able to the structure for meeting exhaust path when being vertically arranged；Correspondingly, the position of exhaust gas entrance 2 and waste gas outlet 3 can To rotate 90 degree.

In Fig. 1, dividing plate 10 is schematically represented in the centre position of the above-below direction of casing 1, it is main consider on the whole by every The flow resistance of two spaces up and down that plate 10 is divided into it is substantially uniform, meanwhile, dividing plate 10 should have certain thickness, on the one hand should be favourable In the assembling of such as adsorption desorption cylinder 4.

In certain embodiments, the side wall of casing 1 can also be configured to the structure of the auxiliary assembling of adsorption desorption cylinder 4, to carry The reliability of the high assembling structure of adsorption desorption cylinder 4.

It is empty that the assembling of adsorption desorption cylinder 4 and dividing plate 10 enters top ensureing waste gas by adsorption desorption cylinder 4 from lower space Between, therefore, the assembling structure of adsorption desorption cylinder 4 and dividing plate 10 should be hermetic seal.

For adsorption desorption cylinder 4, two mouths, i.e. export and import are played, two parts up and down should be belonged to, As shown in figure 1, import in the space that dividing plate 10 is transferred, exports the space above dividing plate 10.

It is related to the start form of headstock gear, an embodiment is related to adsorption desorption cylinder 4 itself movably, inhaled in another embodiment Desorption cylinder 4 is fixedly installed, and for latter, the absorbing unit being adapted is required because being fixedly installed on corresponding pilot hole Sealing belongs to static seal, and static seal is implemented relatively easily, will not be repeated here.

If adsorption desorption cylinder 4 is immovable, then the keying of adsorption desorption cylinder 4 is configurable to two kinds of forms, and a kind of form is The wound packages structure of adsorption desorption cylinder 4 is matched, configures pipe valve structure, only due to bigger, the required pipe of the individual of adsorption desorption cylinder 4 Valve caliber requires bigger, and inevitably, pipe valve itself needs to occupy bigger space.Advantage is then compact-sized, letter Practice, control structure is also relatively easy.

Another form is then bottom sealing device 5 as shown in Figure 1, top seal 6, and driving bottom is close The lower transmission mechanism 7 of seal apparatus 5 and the upper transmission mechanism 8 of driving top seal 6, in figure, bottom sealing device 5 and top The forms of motion of portion's sealing device 6 is the linear motion of vertical direction, linear motion belong to mechanical field most regular motion it One, implement relatively easily, such as such as bottom sealing device 5, cylinder start speed can be driven using cylinder It hurry up, in place accurately, be highly suitable for this kind of driving.Because linear motion is easier to realize, will not be repeated here.

In foregoing another form, bottom sealing device 5 and top seal 6 are adapted to such as adsorption desorption cylinder 4 Nozzle is set, and nozzle can be circular, square or other geometries, such as bottom sealing device 5 can be directly to nozzle It is mobile, to be blocked to it, belong to closure or the opening/shutting mode of engagement class, when in opening, because bottom is close Seal apparatus 5 disengages with nozzle, and the interference to air-flow is smaller, and especially, this disengagement, its throw-off distances is not by nozzle structure Limitation, therefore, bottom sealing device 5 from adsorption desorption cylinder 4 import exceed with a certain distance from when, the influence to air-flow substantially may be used To ignore.

The opening/shutting mode for coordinating lower transmission mechanism 7 based on such as bottom sealing device 5 above is different from conventional valve control System, the requirement to assembly space is smaller, while influence during to adsorption desorption 4 working condition of cylinder is smaller.

In certain embodiments, absorbing unit is movable, it is therefore desirable to makes it have the forms of motion of determination, is led for its configuration Guiding structure, in mechanical field, hole axle guiding structural is more commonly used, although the caliber of adsorption desorption cylinder 4 is larger, but still possesses hole axle and leads The attribute drawn, therefore, a certain section of the absorbing unit matched are configured as being directed to part, this be directed to part with it is described Pilot hole hermetic seal cooperatively forms prismatic pair, and in the construction shown in fig. 1, the direction of prismatic pair is in vertical direction.

Correspondingly, using the moving direction of prismatic pair as reference, the outlet and import configuration are in prismatic pair movement side To both ends, and be provided with first sealing device relative to outlet, such as top seal 6, be provided with second relative to import and seal Device, such as bottom sealing device 5.

In this embodiment, because such as adsorption desorption cylinder 4 is movable, then such as bottom sealing device 5 and top sealing One of device 6 can be different, another to need as driving part, under conditions of making itself movable, additionally it is possible to promote adsorption desorption Cylinder 4 moves, it is thereby assumed that top seal 6 is movable, its impulse stroke should be greater than the impulse stroke of adsorption desorption cylinder 4, so that Under conditions of being fixed in the position of bottom sealing device 5, realize to the both ends closure of adsorption desorption cylinder 4 and realize and close.

The structure that action process is adapted to is that the headstock gear is configured with following configuration：First sealing device and One of two sealing devices have the impulse stroke in prismatic pair moving direction, so as to move closure import or export to absorbing unit One of, and further promote absorbing unit after being engaged with absorbing unit and to block import or export another.

Correspondingly, absorbing unit can be used and for example carried preferably with passive reset, rather than positive return, passive reset Start elastomeric element in opposite direction is closed based on adsorption desorption cylinder 4 for a kind of, the preferred cylindrical spring of elastomeric element, cylindrical spring can To be supported on the low side of such as adsorption desorption cylinder 4, gapping of spring imports available for waste gas, smaller to airflow influence.In some implementations In example, cylindrical spring can be sleeved on adsorption desorption cylinder 4, and the strong point of spring avoids nozzle, so as to further mitigate To the resistance of off-gas flows.

In a preferred embodiment, the seal member of the first sealing device and second sealing device is sealing circle Face is furnished with the flat components or convex surface part of flexible piece, as it was previously stated, such as adsorption desorption cylinder 4, is used in preferable structure Cylindrical structure, corresponding nozzle are round mouth, and as it was previously stated, its realization opened and closed comes from linear motion, nozzle and sealing The composition surface of pairing, seal interface and pairing is used between device, composition surface area is smaller, although, it is right in such exhaust-gas treatment What is sealed is less demanding, but still needs to reduce leakage as far as possible, therefore, in order to improve the sealability under involution condition, there is provided Flexible piece is provided on the surface of such as flat components, flexible piece can deform under stress condition, so as to the junction surface that can make The contact area increase of position, and it is conducive to provide sealing grade.

For flexible piece, preferred rubber pad.

Also need to consider influence of the heating of heater to such as rubber blanket service life herein, as it was previously stated, herein Heating coordinate vaccum-pumping equipment to be used in conjunction with, under given vacuum in other words condition of negative pressure, the boiling of related solvents Point can substantially reduce.

In experimental equipment, it is 0.2KPa to vacuumize the vacuum formed in the adsorption desorption cylinder 4, required heating temperature Only 60 degrees Celsius of cans need to be reached has very high desorption efficiency to degree.For rubber blanket, even conventional rubber, still With 60 degrees Celsius of preferable tolerance, aging is slower, if using high temperature resistant（More than 350 degrees Celsius can be resistant to Temperature）, then there is higher ageing resistance.

In addition, under vacuum condition, required heating-up temperature is relatively low, can save energy consumption, environmentally friendly relatively good.

It should be further stated that due to using the direct pump drainage of organic exhaust gas to being desorbed out, others will not be mixed Impurity, though it is foreseeable that the purity of the organic matter reclaimed can be higher, so as to be advantageous to the follow-up place of reclaimed organic matter Reason.

Comparatively, such as adsorption desorption cylinder 4, it has larger weight, in the construction shown in fig. 1, corresponding to absorption The stop up and down of device impulse stroke, accordingly it is furnished with position limit device and lower caging device, avoids the overtravel of adsorption desorption cylinder 4, and Excessive extruding is produced to such as bottom sealing device 5, such as lower transmission mechanism on the one hand can be damaged, on the other hand may make Such as rubber blanket cross deformation.

Stopping means can use baffle arrangement, simple in construction, fail.

In certain embodiments, buffer structure can also be set on baffle plate.

On the selection of heater, in simplified structure, electrical heating can be directly used, simplest realization is to adopt With the cage type storage device 16 for example shown in Fig. 1 in heating wire winding adsorption desorption cylinder 4, electrical heating can coordinate TEMP Device realizes closed-loop control.In certain embodiments, then using heat exchange coil, coil pipe is coiled in real for example in cage type storage device 16 Now heat, closed-loop control can also be realized using heat exchange coil.

In addition, cage type storage device 16 is nested into adsorption desorption cylinder 4, it is possible to reduce heat scatters and disappears, and can also reduce to adjacent The heat of adsorption desorption cylinder 4 is harassed.

If here, adsorption desorption cylinder 4 be grouped, difference group adsorption desorption cylinders 4 not in a chamber, can be further Reduction is mutual to harass.

The adsorption desorption system containing exhaust gas adsorption device is further illustrated below, the structure shown in Fig. 1 and Fig. 2 or Fig. 3 Matching connection forms adsorption desorption system, and the exhaust device is connected by setting valvular pipeline with the bypass.

Either each group of adsorption desorption cylinder 4 matches company by one group of valve with the desorption apparatus shown in Fig. 2 or Fig. 3 for each Connect, valve can use magnetic valve, so as to realize intelligent control by centralized Control, for example, be alternately carried out some or A certain group of adsorption desorption cylinder 4 carries out desorption processing.

Such as PLC can be introduced during centralized Control（Programmable logic controller (PLC)）, the PLC cans satisfaction suction of 60 points of minimum The control wiring of desorption system.

It is visible in Fig. 1 ~ Fig. 3, connected between adsorbent equipment and desorption apparatus using pipeline and form adsorption desorption system, managed The advantages of road connects is that pipeline can be connected quickly, such as is quickly connected by fast interface, specific realized such as jump ring interface Connect, therefore, in adsorbent equipment as determining under conditions of thing uses, desorption apparatus can use as mobile unit, right Adsorbent equipment uses in being regularly desorbed, and uses desorption apparatus with adsorbent equipment 1 to more configuration modes.

Further, since pipeline easily realizes parallel-connection structure, therefore, even desorption apparatus uses the form for determining thing, By the in parallel of pipeline and Valve controlling can be coordinated to realize the configuration mode more than 1 pair.

The recovery of organic exhaust gas is reclaimed using gas-liquid separation, it will be appreciated that liquid is more great than the ratio of gas, and liquid is certainly So descending, gas rises, and is separated so as to attribute accordingly, and organic exhaust gas enters pump drainage and filled in the form of a vapor first Put, it is to be understood that further cooled, constituent part therein can be made to become liquid, part keeps gaseous state, this It is related to the natural quality of component.

Therefore, exhaust device needs to configure condensing unit, and is preferably equipped with multistage, with classification cool down, Ke Yiti High segregation ratio.

Because exhaust device can produce vacuum, substantially it also forms vacuum recovering apparatus, even using blower fan pump drainage, The worst negative pressure for being vortex fan, remaining able to produce tens KPa of pump drainage vacuum, if using vacuum system, such as sieve Thatch pump coordinates the vacuum system of peripheral pump, then can produce 300mbar or so negative pressure, if using vacuum pump group, such as revolve Rotary vane vavuum pump（Dry type）, then tens mbar or so vacuum can be produced, if using orbiting vane vavuum pump （Oily formula）, then 0.1mbar or so vacuum can be produced, if using oily formula, vavuum pump should be arranged on after recovery completion One-level.

And then required configuration need to include condensing unit, at least equipped with one-level, condensed in Fig. 2 equipped with three-level, be specifically Heat regenerator 18, followed by air cooler 21, besides deep freezer 24, realize condensation step by step, it should be appreciated that, heat regenerator 18 is in heat It can lose heat while being recovered, therefore form one-level condensation, and deep freezer 24 is then relative to other two-stages, it belongs to deep It is cold.

Condensing unit itself can be directly realized by gas-liquid separation, in some embodiments, it is also possible to using independent gas-liquid Separator, gas-liquid separator 20 as shown in Figure 2, air-cooled gas-liquid separator 23, in figure, the two gas-liquid separators 20 are matched somebody with somebody Pipe can clearly show, the utilization of gas phase up attribute descending to liquid phase.

On retracting device, then it is condensate recovery device 26 as shown in Figures 2 and 3, is substantially tank structure, directly holds Condensing unit is connect to house liquid phase substance.

It should be noted that due to each condensing unit shown in Fig. 2 and Fig. 3, although it generates cooling, it is in The relatively low state of air pressure, some total gaseous substance can not be condensed, unless carrying out the condensation of very low temperature, these gases The waste gas that can not be received by atmospheric environment is shown as, therefore, for the gas that can not be condensed, referred to as fixed gas, is needed Further to handle, be configured, configure additional handling device, condensing unit be accepted, further to handle gaseous substance In harmful components.

Additional handling device can be the adsorption desorption cylinder 4 shown in Fig. 1, and in other words, fixed gas can be in directly tieback Fig. 1 Shown exhaust gas entrance 2.

On vacuum system 25, air inducing mode is used, and is connected to the gas outlet of additional handling device.

In Fig. 2 and Fig. 3, liquid phase substance caused by multistage condensing unit imports the retracting device, as shown in Figure 2 The rear stage of condensate recovery device 26 connection previous stage gas phase outlet.

Further one Solvent at Atmospheric Pressure recycling can 27 of connection, recovery are stand-by for condensate recovery device 26.

As previously mentioned, for heater, electrical heating can be used, can also be heated using heat exchange coil, used Heat exchange coil heats, then can directly utilize heat caused by adsorption desorption system, recycle, for saving energy consumption.

Specifically, it is heat exchanger to be introduced directly into exhaust gas adsorption device and export the first order condensing unit of waste gas, specific table It is now the heat regenerator 18 shown in Fig. 2, correspondingly, the hot-fluid side connection waste gas of the heat exchanger, cold flow side is then equipped with heat Retracting device, heat reclamation device form the cold flow side circulatory system of heat regenerator 18.

Heat reclamation device includes deep cooling train condenser 17, thermal medium storage bin 30, thermal medium heater 29 in fig. 2 With thermal medium circulating pump 31, it is also shown in figure, deep cooling train condenser 17 also further passes through compressor 28 with deep freezer 24 Deep cooling circulation is formed, related pipe arrangement is clearer in Fig. 2, understands to get up to compare for the technical staff of technical field of heat exchange Easily, will not be repeated here.

Claims (15)

1. A kind of 1. exhaust gas adsorption device, it is characterised in that including：

   Absorbing unit, the built-in adsorbent of the absorbing unit, equipped with multiple, and absorbing unit has inlet and outlet, and equipped with side Road, wherein, import exports the export for gas after absorption, bypassed for connecing exhaust device to import waste gas；

   Heater, for carrying out dry type heating to absorbing unit；And

   Headstock gear, set corresponding to the inlet and outlet, the keying for inlet and outlet；

   Wherein, the headstock gear of each absorbing unit there is independent control device or all absorbing units be divided into it is multigroup, in group Headstock gear Synchronization Control, the headstock gear between group controls respectively.
2. 2. exhaust gas adsorption device according to claim 1, it is characterised in that each absorbing unit at least has a suction de- Attached cylinder, when adsorption desorption cylinder has multiple, concatenate between each other.
3. 3. exhaust gas adsorption device according to claim 2, it is characterised in that the adsorption desorption cylinder is furnished with described for containing The container of adsorbent；The end that the container corresponds at least to inlet and outlet is evenly equipped with mesh.
4. 4. according to any described exhaust gas adsorption device of claim 1 ~ 3, it is characterised in that be provided with exhaust gas entrance equipped with one and give up The housing of gas outlet；

   A dividing plate is provided with housing, for enclosure interior space to be separated into two parts, one part enters equipped with the waste gas Mouthful, another part is furnished with the waste gas outlet；

   Dividing plate, which is gone into battle, shows pilot hole, and absorbing unit is hermetically assemblied on pilot hole, is located at a part, import so as to export Positioned at another part.
5. 5. exhaust gas adsorption device according to claim 4, it is characterised in that absorbing unit is fixed on the pilot hole； Or

   Absorbing unit, which has, is directed to part, and this is directed to part and cooperatively forms prismatic pair with the pilot hole hermetic seal；Accordingly Ground, the outlet and import configuration are provided with first sealing device at the both ends of prismatic pair moving direction, and relative to outlet, The second sealing device is provided with relative to import；

   The headstock gear is configured to：One of first sealing device and the second sealing device have the work in prismatic pair moving direction Make stroke, so as to move one of closure import or export to absorbing unit, and absorption is further promoted after being engaged with absorbing unit Unit and to block import or export another；

   Correspondingly, absorbing unit is furnished with contrast to the resetting means on prismatic pair impulse stroke direction.
6. 6. exhaust gas adsorption device according to claim 5, it is characterised in that the first sealing device and described second close The seal member of seal apparatus is the flat components or convex surface part that seal interface is furnished with flexible piece.
7. 7. exhaust gas adsorption device according to claim 5, it is characterised in that the absorbing unit is vertical structure, accordingly Ground, the dividing plate are horizontally disposed with；

   The resetting means is arranged on the bottom of absorbing unit.
8. 8. exhaust gas adsorption device according to claim 7, it is characterised in that above and below adsorbent equipment impulse stroke Stop, accordingly it be furnished with position limit device and lower caging device.
9. 9. according to any described exhaust gas adsorption device of claim 1 ~ 3, it is characterised in that be provided with exhaust gas entrance equipped with one and give up The housing of gas outlet；

   A plane clapboard is provided with housing, for by enclosure interior space be divided into up and down two parts, and last point or Relative both ends one is furnished with the exhaust gas entrance to next part in the horizontal direction, and another be furnished with the waste gas outlet, and then, Provided with exhaust gas entrance or last point of waste gas outlet or next part equipped with one perpendicular to plane clapboard accessory septa, use In isolation exhaust gas entrance and waste gas outlet；

   Dividing plate, which is gone into battle, shows pilot hole, and absorbing unit is hermetically assemblied on pilot hole.
10. 10. according to any described exhaust gas adsorption device of claim 1 ~ 3, it is characterised in that the heater is to be fitted in Electric heater unit on absorbing unit or the heat exchange coil being coiled on absorbing unit.
11. 11. adsorption desorption system of the one kind with described exhaust gas adsorption device any just like claim 1 ~ 10, it is characterised in that institute State exhaust device and connected by setting valvular pipeline with the bypass.
12. 12. adsorption desorption system according to claim 11, it is characterised in that the exhaust device is vacuum recovering apparatus, The vacuum recovering apparatus includes：

    Condensing unit, at least equipped with one-level, there will be the organic exhaust gas in the gas pumped out to become in whole or in part by condensation Into liquid phase；

    Retracting device, condensing unit is accepted to house liquid phase substance；

    Additional handling device, condensing unit is accepted, further to handle the harmful components in gaseous substance；And

    Vacuum system, it is connected to the gas outlet of additional handling device.
13. 13. adsorption desorption system according to claim 12, it is characterised in that preferred condensing unit is multistage, and multistage is cold Liquid phase substance caused by solidifying device imports the retracting device, and rear stage connects the gas phase outlet of previous stage.
14. 14. the adsorption desorption system according to claim 12 or 13, it is characterised in that be introduced directly into exhaust gas adsorption device and led The first order condensing unit for going out waste gas is heat exchanger, and correspondingly, the hot-fluid side connection waste gas of the heat exchanger, cold flow side is then matched somebody with somebody There is heat reclamation device.
15. 15. adsorption desorption system according to claim 14, it is characterised in that the heat reclamation device is furnished with storage bin, with And the cold flow side EGR formed by circulating pump cooperation pipeline；

    Wherein, storage bin is furnished with thermal medium heater；

    Correspondingly, coil pipe of the heater for configuration on absorbing unit, coil pipe access cold flow side EGR, and position In the prime of heat exchanger.