CN110585855A - Movable waste gas treatment device - Google Patents

Movable waste gas treatment device Download PDF

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Publication number
CN110585855A
CN110585855A CN201910993912.6A CN201910993912A CN110585855A CN 110585855 A CN110585855 A CN 110585855A CN 201910993912 A CN201910993912 A CN 201910993912A CN 110585855 A CN110585855 A CN 110585855A
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CN
China
Prior art keywords
air
pipe
heat exchange
activated carbon
box
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CN201910993912.6A
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Chinese (zh)
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郭渊明
王欣
郭斌
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郭渊明
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Priority to CN201910993912.6A priority Critical patent/CN110585855A/en
Publication of CN110585855A publication Critical patent/CN110585855A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D51/00Auxiliary pretreatment of gases or vapours to be cleaned
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/38Removing components of undefined structure
    • B01D53/44Organic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8678Removing components of undefined structure
    • B01D53/8687Organic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708Volatile organic compounds V.O.C.'s
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases

Abstract

The invention discloses a movable waste gas treatment device, which belongs to the technical field of environmental protection equipment, and comprises an adsorption box body and a desorption regeneration system which can be arranged on a transport vehicle, and can be flexibly and conveniently transported to any place; a plurality of layers of activated carbon beds which are arranged in parallel are arranged in the adsorption box body, so that the waste gas treatment capacity can be enlarged; it has two sets of air inlets of coupling and gas outlet to adsorb the intake pipe and adsorb the outlet duct to be equipped with at least on the adsorption tank lateral wall, first set of air inlet and gas outlet link to each other with adsorbing the intake pipe and adsorbing the outlet duct respectively, second set of air inlet and gas outlet link to each other with desorption regeneration system, can with the help of the coupling with the pipeline high-speed joint of treating adsorption gas pipeline and desorption regeneration system, convenient operation is swift, treat the waste gas of purifying and desorption regeneration system's hot-air opposite in the internal flow direction of adsorption tank, can realize the absorption and the desorption regeneration of active carbon respectively.

Description

Movable waste gas treatment device
Technical Field
The invention belongs to the technical field of environment-friendly equipment, and particularly relates to a movable waste gas treatment device.
Background
With the rapid development of economy, the automobile holding capacity is rapidly increased, and in the automobile manufacturing or maintenance process, the exhaust emission generated by paint spraying not only influences the health of surrounding residents, but also is one of the causes of dust-haze pollution. At present, most automobile maintenance paint spraying and baking rooms are only provided with simple paint mist filtering devices to purify aerosol paint mist generated in the paint spraying process, but gaseous volatile organic compounds are basically directly discharged to the atmosphere. Although some paint spray and baking rooms are provided with simple waste gas purification devices, in practice, most of the waste gas purification devices are not matched with the emission of the paint spray and baking rooms in order to reduce cost, and the purification effect cannot be achieved.
In the prior art, an exhaust gas purification device arranged in a paint spray booth is fixed and cannot move along with the change of a working place. At present, the waste gas purification usually adopts activated carbon adsorption purification, and the activated carbon after adsorption saturation is inconvenient to change, and the treatment can also produce expensive cost, causes secondary pollutants.
Disclosure of Invention
The invention aims to provide a movable waste gas treatment device, and aims to solve the technical problems that a fixed waste gas purification device in the prior art cannot migrate and activated carbon after saturated adsorption is inconvenient to replace and treat.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a movable waste gas treatment device comprises an adsorption box body for purifying waste gas and a desorption regeneration system for regenerating activated carbon, wherein the adsorption box body and the desorption regeneration system can be arranged on a transport vehicle; the adsorption box is characterized in that a plurality of layers of activated carbon beds which are arranged in parallel are arranged inside the adsorption box body, at least two groups of air inlets and air outlets are arranged on the side wall of the adsorption box body, pipe joints are arranged outside the air inlets and the air outlets, the first group of air inlets and the first group of air outlets are respectively connected with an adsorption air inlet pipe and an adsorption air outlet pipe, and the second group of air inlets and the second group of air outlets are connected with a desorption regeneration system; two sets of air inlets and air outlets are arranged on two side walls of the adsorption box body in a staggered mode and used for enabling the flow directions of waste gas to be purified and hot air of the desorption regeneration system to be opposite in the adsorption box body.
Preferably, the multilayer activated carbon beds are arranged in parallel from top to bottom, the left and right sides of the multilayer activated carbon beds are respectively provided with a baffle plate corresponding to the air inlet and the air outlet, the upper and lower sides of the activated carbon beds are provided with air inlet channels and air outlet channels in a staggered manner, and the baffle plates at the two sides are respectively provided with air holes corresponding to the air inlet channels and the air outlet channels; an air inlet main channel communicated with the pipe joint is arranged between the left baffle and the left side wall of the adsorption box body, and an air exhaust main channel communicated with the pipe joint is arranged between the right baffle and the right side wall of the adsorption box body; the air holes on the left baffle plate are communicated with the air inlet main channel and the air inlet channel, and the air holes on the right baffle plate are communicated with the air outlet main channel and the air outlet channel; the air holes on the left baffle are arranged by two layers of activated carbon beds, and the air holes on the right baffle and the air holes on the left baffle are arranged in a vertically staggered manner; the outside of bleeder vent all is equipped with the detachable valve plate on left side baffle and the right side baffle, blocks the different bleeder vents of left side baffle and right side baffle through the valve plate, realizes individual layer active carbon or multilayer active carbon adsorption.
Preferably, activated carbon is filled in the net cage of the activated carbon bed; be equipped with dress charcoal mouth on the lateral wall of absorption box, dress charcoal mouth department is equipped with the closure plate, the outside of closure plate is equipped with the handle.
Preferably, the inner surface of the top plate of the adsorption box body is provided with a plurality of spray headers, the spray headers are communicated with spray pipes for conveying cooling water, and the spray pipes are arranged outside the adsorption box body; two detection ports are arranged on the side wall of the adsorption box body, and the two detection ports are respectively communicated with the air inlet main channel and the air outlet main channel; and a blow-off pipe which is respectively communicated with the air inlet main channel and the air exhaust main channel is arranged below the base of the adsorption box body.
Preferably, the desorption regeneration system comprises a catalytic oxidation box and a first fan, a catalytic combustion chamber, a heating chamber with a heater and a heat exchange chamber with a heat exchange tube are arranged in the catalytic oxidation box, a second group of air inlets and air outlets of the adsorption box body are respectively connected with an air inlet of the heat exchange tube and an air outlet of the heat exchange chamber through pipelines, and the air outlet of the heat exchange tube faces the heating chamber; the inlet of the first fan is connected with the pipe joint of the adsorption box body through a desorption waste gas pipe, and the outlet of the first fan is connected with the air inlet of the heat exchange pipe and used for conveying desorption waste gas after desorption of active carbon in the adsorption box body to the heat exchange pipe, the heating chamber and the catalytic combustion chamber; the catalytic combustion chamber is separated from the heating chamber and the catalytic combustion chamber is separated from the heat exchange chamber through a catalytic bed containing a catalyst, air holes are formed in the catalytic bed, and heated desorption waste gas enters the catalytic combustion chamber from the heating chamber and enters the heat exchange chamber from the catalytic combustion chamber; and the top of the heat exchange chamber is provided with a discharge pipe connected with a chimney.
Preferably, the heating chamber is arranged below the heat exchange chamber, a middle plate is arranged between the heat exchange chamber and the heating chamber, the left side of the middle plate is connected with the catalytic bed, and the other three sides of the middle plate are connected with the inner wall of the catalytic oxidation box; the catalytic combustion chamber is arranged on the left side of the heating chamber and the heat exchange chamber, the first fan is arranged on the right side of the catalytic oxidation box, and an air inlet of the heat exchange tube is communicated with a waste gas pipeline outside the catalytic oxidation box.
Preferably, a partition plate is arranged in the middle of the heat exchange chamber, the front side and the rear side of the partition plate are connected with the inner wall of the catalytic oxidation box, a gap is arranged between the right side of the partition plate and the inner wall of the catalytic oxidation box, the left side of the partition plate is connected with the top of the catalytic oxidation box through an inclined transition plate, the front side and the rear side of the transition plate are connected with the inner wall of the catalytic oxidation box, and the top of the catalytic bed is connected with the lower end of the transition plate; and the inlet of the discharge pipe is arranged on the left side of the heat exchange pipe.
Preferably, the catalytic bed between the catalytic combustion chamber and the heating chamber is of a honeycomb structure with honeycomb channels arranged inside, and heat storage ceramic honeycomb bricks are paved on the catalytic bed towards two sides of the catalytic combustion chamber and the heating chamber.
Preferably, the side of the discharge pipe is provided with a branch pipe connected with the joint of the adsorption box body pipe, and the branch pipe is provided with a second fan used for supplying fresh air.
Preferably, the side wall of the adsorption box body is provided with a temperature control panel and a plurality of temperature sensors which are electrically connected with the controller, two temperature sensors are arranged below each layer of activated carbon bed and are correspondingly arranged at two ends of the activated carbon bed, and the temperature sensors below the activated carbon bed are electrically connected with the temperature control panel; a temperature sensor and a temperature regulating valve are arranged on a desorption waste gas pipe discharged from the adsorption box body, a temperature regulating valve is arranged on a pipeline between the heat exchange chamber and the adsorption box body, and the temperature sensor and the temperature regulating valve on the desorption waste gas pipe discharged from the adsorption box body and the temperature regulating valve on the pipeline between the heat exchange chamber and the adsorption box body are all controlled in an interlocking manner through a controller; a pipeline between the heat exchange chamber and the adsorption box body is connected with a desorption waste gas pipe through a bypass pipe, and a temperature regulating valve is arranged on the bypass pipe; an inlet of the first fan is provided with an air supplementing pipe, the air supplementing pipe is provided with a temperature regulating valve, the heat exchange chamber, the heating chamber, the catalytic bed and the catalytic combustion chamber are respectively provided with a temperature sensor, and the temperature sensor on the catalytic bed and the temperature regulating valve on the air supplementing pipe are controlled in an interlocking manner through a controller; and the other temperature sensors are all electrically connected with the controller.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the adsorption box body and the desorption regeneration system are arranged on the transport vehicle, so that the adsorption box body and the desorption regeneration system can be flexibly and conveniently transported to any place; the activated carbon beds arranged in parallel in multiple layers in the adsorption box body adsorb and purify the waste gas, so that the flow of waste gas treatment can be enlarged; the pipeline that can be with treating the adsorption gas pipeline and desorption regeneration system with the help of air inlet and the outside coupling of gas outlet is connected fast, and convenient operation is swift, treats that the waste gas of purifying and desorption regeneration system's hot-air flow direction is opposite in the adsorption tank, can realize the absorption and the desorption regeneration of active carbon respectively. The invention has the advantages of flexibility, convenience and long service life, and the activated carbon after purifying the waste gas can be desorbed and regenerated in time, thereby finally realizing the standard emission of the waste gas.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a process flow diagram of a mobile exhaust treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an adsorption tank in an embodiment of the present invention;
FIG. 3 is an internal structural view of the adsorption tank of FIG. 2;
FIG. 4 is a schematic view showing the flow direction of the exhaust gas in the adsorption tank of FIG. 3 during the treatment of the exhaust gas (when the concentration of the purified exhaust gas is low);
FIG. 5 is a schematic diagram of a desorption regeneration system according to an embodiment of the present invention;
FIG. 6 is an outline view of FIG. 5;
FIG. 7 is a schematic flow diagram of the desorbed exhaust gas and combustion products of FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 5 at A;
FIG. 9 is a schematic view showing the operation of an oxidizer according to an embodiment of the present invention;
FIG. 10 is a schematic view of the flow of the flue gas to the adsorption tank of FIG. 3 during the treatment of the flue gas (when the concentration of the purified flue gas is slightly higher);
FIG. 11 is a schematic view showing the flow direction of the exhaust gas in the adsorption tank of FIG. 3 during the treatment of the exhaust gas (when the concentration of the purified exhaust gas is large);
FIG. 12 is a schematic view of the structure of the activated carbon bed of FIG. 3;
in the figure: 1-adsorbing the box body; 2-an activated carbon layer; 3-pipe joint; 4-adsorbing an air inlet pipe; 5-adsorbing the air outlet pipe; 6-a baffle plate; 7-an intake passage; 8-an air outlet channel; 9-air holes; 10-an air inlet main channel; 11-exhaust main channel; 12-a blocking plate; 13-handle; 14-a detection port; 15-a sewage draining pipe; 16-a catalytic oxidation box; 17-a first fan; 18-a catalytic combustor; 19-a heating chamber; 20-heat exchange tube; 21-a heat exchange chamber; 22-desorption exhaust gas pipe; 23-a catalytic bed; 24-a chimney; 25-a discharge pipe; 26-a middle plate; 27-a separator; 28-a transition plate; 29-a protective cover; 30-lifting lugs; 31-a gas tank, 32-a gas pipe, 33-a burner, 34-a combustion-supporting device and 35-an induced draft pipe; 36-a viewing window; 37-branch pipe; 38-a second fan; 39-a controller; 40-a temperature sensor; 41-temperature regulating valve; 42-a bypass pipe; 43-air supplement pipe; 44-explosion-proof port; 45-steel wire mesh; 46-a grid plate; 47-temperature control panel; 48-a spray header; 49-a valve plate; 50 of activated carbon; 51-a throat; 52-burner tip.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A mobile waste gas treatment device as shown in fig. 1 and 2, which comprises an adsorption tank 1 for purifying waste gas and a desorption regeneration system for regenerating activated carbon, wherein the adsorption tank 1 and the desorption regeneration system can be arranged on a transport vehicle; the adsorption device is characterized in that a plurality of layers of activated carbon beds 2 which are arranged in parallel are arranged inside the adsorption box body 1, at least two groups of air inlets and air outlets are arranged on the side wall of the adsorption box body 1, pipe joints 3 are arranged outside the air inlets and the air outlets, the first group of air inlets and the first group of air outlets are respectively connected with an adsorption air inlet pipe 4 and an adsorption air outlet pipe 5, and the second group of air inlets and the second group of air outlets are connected with a desorption regeneration system; the two groups of air inlets and the two groups of air outlets are arranged on two side walls of the adsorption box body 1 in a staggered mode and are used for enabling the waste gas to be purified and the hot air of the desorption regeneration system to flow in opposite directions in the adsorption box body 1. The adsorption box body and the desorption regeneration system can be arranged on a transport vehicle, and can be conveniently transported to any place. Waste gas enters the adsorption box body from the adsorption air inlet pipe, and after being adsorbed by the multi-layer activated carbon bed, the waste gas is purified and then discharged up to the standard. After the activated carbon adsorption of the activated carbon bed layer is saturated, the activated carbon adsorption system is communicated with a desorption regeneration system, the desorption regeneration system can desorb the activated carbon by adopting hot air, the high-temperature hot air enters the adsorption box body in the direction opposite to the waste gas, the carrier hot air revived in the adsorption box body passes through the activated carbon bed layer in the counter-current direction, adsorbed organic matters are heated and enhanced to break away from the physical adsorption force of the activated carbon, the organic matters are carried out to form desorption waste gas to be discharged out of the adsorption box body, and the regeneration and revival of the activated carbon are realized.
In a preferred embodiment of the present invention, as shown in fig. 2-4, the multiple layers of activated carbon beds 2 are arranged in parallel from top to bottom, the left and right sides of the multiple layers of activated carbon beds 2 are respectively provided with a baffle 6 corresponding to the air inlet and the air outlet, the upper and lower sides of the activated carbon beds 2 are provided with air inlet channels 7 and air outlet channels 8 in a staggered manner, and the baffles 6 at the two sides are respectively provided with air holes 9 corresponding to the air inlet channels 7 and the air outlet channels 8; an air inlet main channel 10 communicated with the pipe joint 3 is arranged between the left baffle 6 and the left side wall of the adsorption box body 1, and an air outlet main channel 11 communicated with the pipe joint 3 is arranged between the right baffle 6 and the right side wall of the adsorption box body 1; the air holes 9 on the left baffle 6 are communicated with the air inlet main channel 10 and the air inlet channel 7, and the air holes 9 on the right baffle 6 are communicated with the air outlet main channel 11 and the air outlet channel 8; the air holes 9 on the left baffle 6 are arranged by separating two layers of activated carbon beds 2, and the air holes 9 on the right baffle 6 and the air holes 9 on the left baffle 6 are staggered up and down; the outside of bleeder vent 9 all is equipped with detachable valve plate 49 on left side baffle 6 and the right side baffle 6, blocks different bleeder vents 9 on left side baffle 6 and the right side baffle 6 through valve plate 49, realizes individual layer active carbon or multilayer active carbon adsorption. The guide plate is arranged on the outer side surface of the air hole, a sliding groove matched with the valve plate is arranged between the guide plate and the baffle plate, the valve plate can be inserted into the sliding groove to block the air hole, and the air flow of the valve plate can pass through the air hole when being pulled out.
When the concentration of the waste gas to be purified is lower, as shown in fig. 4, air inlet channels 7 and air outlet channels 8 are alternately arranged between the top layer activated carbon bed 2 and the top plate of the adsorption box body 1, between the adjacent activated carbon beds 2 and between the bottom layer activated carbon bed 2 and the base of the adsorption box body 1, air holes 9 formed in the left side baffle 6 at intervals are communicated with an air inlet main channel 10 and the air inlet channels 7, and air holes 9 formed in the right side baffle 6 at intervals are communicated with an air outlet main channel 11 and the air outlet channels 8. The waste gas enters the air inlet main channel 10 from the left side, and then enters the top air inlet channel 7 above the top activated carbon bed 2 and the air inlet channel 7 between the second layer of activated carbon bed 2 and the third layer of activated carbon bed 2 through the three groups of air holes 9 of the left baffle 6, a bottom air inlet channel 7 below the fourth activated carbon bed 2, wherein waste gas in the top air inlet channel 7 is adsorbed by the first activated carbon bed 2 and then enters an air outlet channel 8 between the first activated carbon bed 2 and the second activated carbon bed 2, waste gas in the middle air inlet channel 7 is adsorbed by the second activated carbon bed 2 and the third activated carbon bed 2 and then enters the air outlet channel 8 between the first activated carbon bed 2 and the second activated carbon bed 2, and the air outlet channel 8 between the third activated carbon bed 2 and the fourth activated carbon bed 2, and waste gas in the bottom air inlet channel 7 is adsorbed by the fourth activated carbon bed 2 and then enters the air outlet channel 8 between the third activated carbon bed 2 and the fourth activated carbon bed 2; and finally, the waste gas of the gas outlet channel 8 between the first layer of activated carbon bed 2 and the second layer of activated carbon bed 2 and between the third layer of activated carbon bed 2 and the fourth layer of activated carbon bed 2 is discharged through the gas holes 9 on the right side baffle 6 and converged to the right side exhaust main channel 11, and then is discharged out of the adsorption box body 1 through the gas outlet.
When the concentration of the waste gas to be purified is slightly higher, as shown in fig. 10, an air inlet channel 7 is arranged between the top layer activated carbon bed 2 and the top plate of the adsorption box body 1, and between the bottom layer activated carbon bed 2 and the base of the adsorption box body 1, an air outlet channel 8 is arranged between the second layer activated carbon bed 2 and the third layer activated carbon bed 2, a middle air hole 9 on the left baffle 6 is sealed by a valve plate 49, and an air hole on the right baffle 6 corresponding to the baffle is communicated with the air outlet channel 8 and the exhaust main channel 11. Waste gas enters the main air inlet channel from the left air inlet, then respectively enters the top air inlet channel above the top activated carbon bed and the bottom air inlet channel below the fourth activated carbon bed through the upper and lower groups of air holes of the left baffle plate, and the waste gas of the top air inlet channel enters the second activated carbon bed for secondary adsorption after being adsorbed by the first activated carbon bed; the waste gas in the bottom gas inlet channel is adsorbed by the fourth layer of activated carbon bed and then enters the third layer of activated carbon bed for secondary adsorption; and the waste gas is subjected to two-time adsorption and then gathered to an air outlet channel between the second layer of active carbon bed and the third layer of active carbon bed in the middle, and finally is discharged through an air hole on the right side baffle plate and converged to a right side exhaust main channel, and then is discharged out of the adsorption box body through an air outlet pipe.
When the concentration of the waste gas to be purified is large, as shown in fig. 11, an air inlet channel 7 is arranged between the top layer activated carbon bed 2 and the top plate of the adsorption box body 1, an air outlet channel 8 is arranged between the bottom layer activated carbon bed 2 and the base of the adsorption box body 1, a middle bottom air hole 9 on the left baffle 6 is plugged by a valve plate 49, the right baffle 6 except the bottom air hole is plugged by the valve plate 49, and the bottom air outlet channel 8 is communicated with an exhaust main channel 11 through an air hole on the right baffle 6. Waste gas enters the air inlet main channel from the left air inlet and then enters the top air inlet channel above the top activated carbon bed through the upper air holes of the left baffle plate, the waste gas of the top air inlet channel enters the bottom air outlet channel after being adsorbed for four times by the first activated carbon bed, the second activated carbon bed, the third activated carbon bed and the fourth activated carbon bed in sequence, and finally is discharged to the right air exhaust main channel through the air holes on the right baffle plate and then is discharged out of the adsorption box body through the air outlet pipe.
In an embodiment of the present invention, as shown in fig. 3 and 12, the inside of the net cage of the activated carbon bed 2 is filled with activated carbon, the bottom of the activated carbon bed 2 is provided with a steel wire mesh 45 and a grid plate 46, and the grid plate 46 is disposed below the steel wire mesh 45. The grid plate is utilized to support the active carbon, and meanwhile, the steel wire mesh and the grid plate can also keep good air permeability; meanwhile, the grille and the steel wire mesh are cooperatively combined into the air quantity uniform distributor, so that the air quantity is uniformly distributed. In order to facilitate the replacement of the activated carbon in the activated carbon bed, a carbon containing opening is formed in the side wall of the adsorption box body 1, a blocking plate 12 is arranged at the carbon containing opening, and a handle 13 is arranged on the outer side of the blocking plate 12. During concrete implementation, the activated carbon can be filled in the rectangular steel wire mesh net cage, one end of the net cage for containing the activated carbon can be connected with the blocking plate to form a drawer-shaped structure, the net cage can be drawn out from the carbon loading port by pulling the blocking plate, and the convenient loading, unloading and replacement of the activated carbon are realized. The net cage can be made into a shell shape with an open top by a steel wire mesh, so that the activated carbon can be conveniently loaded and unloaded.
Further optimizing the technical scheme, as shown in fig. 2 and 4, the inner surface of the top plate of the adsorption box body 1 is provided with a plurality of spray headers 48, the spray headers 48 are communicated with spray pipes for conveying cooling water, and the spray pipes are arranged outside the adsorption box body 1. Wherein, the spray header is spiral, and the outer wall of the spiral pipe is provided with a plurality of spray openings which are downward to the active carbon bed. In the adsorption or desorption process, because the hot air that the desorption was used belongs to high temperature gas, in order to avoid adsorbing the interior high temperature of box and have the potential safety hazard, utilize the shower head to adsorb the box inside and cool down, improve factor of safety. Meanwhile, two detection ports 14 are arranged on the side wall of the adsorption box body 1, and the two detection ports 14 are respectively communicated with the air inlet main channel 10 and the air outlet main channel 11; and a blow-off pipe 15 which is respectively communicated with the air inlet main channel 10 and the air exhaust main channel 11 is arranged below the base of the adsorption box body 1. The concentration of the waste gas flowing in and out of the adsorption box body can be detected at any time by using the detection port; waste gas can take out high concentration organic matter after active carbon adsorbs back or high temperature hot air flows through active carbon desorption back, meets cold liquefaction and has the condensate to separate out, utilizes the blow off pipe can be with comdenstion water discharge adsorption tank body, avoids long-time delay in the box and corrodes the base.
In a preferred embodiment of the present invention, as shown in fig. 5, the desorption regeneration system comprises a catalytic oxidation box 16 and a first fan 17, a catalytic combustion chamber 18, a heating chamber 19 with a heater and a heat exchange chamber 21 with a heat exchange pipe 20 arranged therein are arranged in the catalytic oxidation box 16, a second group of air inlets and air outlets of the adsorption box body 1 are respectively connected with an air inlet of the heat exchange pipe 20 and an air outlet of the heat exchange chamber 21 through pipelines, and an air outlet of the heat exchange pipe 20 faces the heating chamber 19; the inlet of the first fan 17 is connected with the pipe joint 3 of the adsorption box body 1 through a desorption waste gas pipe 22, and the outlet of the first fan 17 is connected with the air inlet of the heat exchange pipe 20 and used for conveying desorption waste gas after desorption of active carbon in the adsorption box body 1 to the heat exchange pipe 20, the heating chamber 19 and the catalytic combustion chamber 18; the catalytic combustion chamber 18 and the heating chamber 19, and the catalytic combustion chamber 18 and the heat exchange chamber 21 are separated by a catalytic bed 23 containing catalyst, the catalytic bed 23 is provided with air holes, and heated desorption waste gas enters the catalytic combustion chamber 18 from the heating chamber 19 and enters the heat exchange chamber 21 from the catalytic combustion chamber 18; the top of the heat exchange chamber 21 is provided with a discharge pipe 25 connected to a chimney 24. The arrow in fig. 7 indicates the air flow direction in the desorption regeneration system, the desorption waste gas is pumped to the heat exchange chamber through the first fan and preheated, then enters the heating chamber and is heated by the heater, the high-temperature desorption waste gas reacts with the catalyst to generate carbon dioxide and water vapor when passing through the catalyst bed, heat exchange is carried out between the high-temperature desorption waste gas and the desorption waste gas in the heat exchange chamber, the waste heat is fully utilized by preheating the desorption waste gas, the carbon dioxide and the water vapor heat air, and the air is partially used for desorption of the activated carbon in the adsorption tank through the discharge pipe, and the rest is discharged to the.
In an embodiment of the present invention, as shown in fig. 5, said heating chamber 19 is disposed below the heat exchange chamber 21, an intermediate plate 26 is disposed between said heat exchange chamber 21 and the heating chamber 19, the left side of said intermediate plate 26 is connected to the catalytic bed 23, and the other three sides are connected to the inner wall of the catalytic oxidation box 16; the catalytic combustion chamber 18 is arranged on the left side of the heating chamber 19 and the heat exchange chamber 21, the first fan 17 is arranged on the right side of the catalytic oxidation box 16, and an air inlet of the heat exchange pipe 20 is communicated with a desorption waste gas pipe 22 outside the catalytic oxidation box 16. By adopting the structure, the overall layout of the desorption regeneration system is more compact, the purpose of equipment miniaturization can be met, and the hoisting and transportation are convenient. Wherein, the heat exchanger adopts a combined waste gas G-G heat exchanger. The low-temperature desorption waste gas enters a heating chamber below after being preheated by a heat exchanger for heating, and then enters a catalytic combustion chamber for thermal oxidation, so that the heat of catalytic combustion is fully utilized, and the heat waste is reduced.
In one embodiment of the present invention, as shown in fig. 5, a partition plate 27 is disposed in the middle of the heat exchange chamber 21, the front and rear sides of the partition plate 27 are connected to the inner wall of the catalytic oxidation chamber 16, a gap is provided between the right side of the partition plate 27 and the inner wall of the catalytic oxidation chamber 16, the left side of the partition plate 27 is connected to the top of the catalytic oxidation chamber 16 through an inclined transition plate 28, the front and rear sides of the transition plate 28 are connected to the inner wall of the catalytic oxidation chamber 16, and the top of the catalytic bed 23 is connected to the lower end of the transition plate 28; the inlet of the discharge pipe 25 is provided at the left side of the heat exchange pipe 20. The catalytic combustion chamber is separated from the heating chamber and the heat exchange chamber by the transition plate and the catalytic bed, and the heat exchange tubes of the heat exchanger are separated from each other by the partition plate, so that waste gas combustion products are discharged in an S shape in the heat exchange chamber and exchange heat with waste gas in the heat exchange tubes for two times, and the purposes of waste heat recycling and waste gas desorption preheating can be realized.
Further optimize above-mentioned technical scheme, the heater is electric heater or gas heater. As shown in fig. 8, the gas heater includes a gas tank 31, a gas pipe 32, a burner 33 and a combustion supporting device 34 connected to the burner 33, the combustion supporting device 34 is communicated with the desorption exhaust gas pipe 22 at the outlet of the first fan 17 through an induced draft pipe 35, a burner tip of the burner 33 is disposed inside the catalytic oxidation box 16, the gas tank 31 and the gas pipe 32 are disposed outside the catalytic oxidation box 16, and the gas pipe 32 is communicated with the gas tank 31 and the burner tip. Wherein, the induced draft pipe 35 of the combustion-supporting device 34 is arranged outside the catalytic oxidation box 16. The inlet end of the burner is provided with an igniter, and the burner adopts an anti-diffusion burner, so that auxiliary protection can be provided; the gas tank is filled with natural gas or liquefied gas. The heat generated by gas combustion is utilized to heat the desorbed waste gas, and the desorbed waste gas after temperature rise enters the catalytic combustion chamber to react with the catalyst to obtain carbon dioxide and water vapor, so that the aim of up-to-standard emission of the desorbed waste gas is fulfilled.
For high-concentration waste gas, after the waste gas is ignited by the heater, the heat generated by catalytic oxidation of the waste gas in the catalytic combustion chamber is enough to meet the temperature required by combustion of the waste gas, and the heater can be turned off without wasting electric energy or fuel gas.
The working principle of the combustion-supporting device is shown in fig. 9, a throat 351 is arranged in the middle of the gas pipe 32, the outlet of the induced air pipe 35 is arranged on the side wall of the throat 51, the burner 52 is arranged at the tail end of the gas pipe 32, and a spiral air outlet is arranged inside the burner 52. The structure adopts a Venturi tube mixing principle, when gas passes through the throat tube at high speed, partial vacuum is formed, the gas in the air guide pipe can be guided into the gas pipe, and the gas is mixed in the front cavity of the burner nozzle and then discharged through the spiral gas outlet. By utilizing the structure, the consumption of gas and air can be reduced, particularly the consumption of gas is reduced, and further the running cost is reduced.
In addition, the burner is equipped with a pipe flame arrestor and a flame arrestor, which can be specifically tailored to the customer's requirements for explosion protection, providing dual protection against backfire risks. The heater can be controlled by a controller with a man-machine operation interface, parameters can be visually adjusted according to working conditions on site, the heater has functions of data recording and historical curve, and a standard data communication system can directly upload data to a plant DCS system, receive instructions and the like. In addition, a flame arrester is also arranged at the junction of the catalytic bed and the heat exchange chamber, so that the backfire is further effectively prevented, and the safety is improved.
For the convenience of integral hoisting, as shown in fig. 5 and 6, a protective cover 29 is arranged outside the catalytic oxidation box 16, the first fan 17 and the heater, the catalytic oxidation box 16 and the first fan 17 are arranged on the base, the lower ends of the peripheral side walls of the protective cover are fixed around the base, and a lifting lug 30 is arranged at the top of the protective cover 29. Similarly, as shown in fig. 2 and 3, 4 lifting lugs are installed at the top of the adsorption box body. By adopting the structure, the adsorption box body and the protective cover are conveniently hung on the lifting hook of the crane to realize integral displacement and transportation, and the adsorption box body and the protective cover are transported to a working place according to actual needs, so that the adsorption box is convenient and fast.
In order to facilitate the observation of the operating conditions inside the catalytic combustion chamber, as shown in fig. 6, the protective cover 29 is provided on its left side wall with an observation window 36, said observation window 36 facing the catalytic bed 23. The working state inside the catalytic bed 9 can be observed at any time through the observation window 7, and whether the tail gas purification is complete, whether the catalyst is blocked or not, whether the catalyst is damaged or not and the like can be found in time.
Further optimizing the technical solution, as shown in fig. 5, the catalytic bed 23 between the catalytic combustion chamber 18 and the heating chamber 19 is a honeycomb structure with honeycomb channels inside, and heat-storage ceramic honeycomb bricks are laid on the catalytic bed 23 facing to both sides of the catalytic combustion chamber 18 and the heating chamber 19. By adopting the structure, the desorption waste gas can be ensured to uniformly pass through the catalytic bed; meanwhile, the heat storage ceramic honeycomb bricks laid at the two ends of the catalytic bed can preserve heat of the catalytic bed, so that heat loss is avoided, and the exhaust gas is ensured to be fully contacted with the catalyst. The desorbed waste gas is subjected to catalytic oxidation or a catalytic bed between the catalytic combustion chamber and the heat exchange chamber, so that the waste gas can be sufficiently subjected to catalytic oxidation, and the catalytic oxidation effect is ensured.
In addition, the upper end of a catalytic bed between the catalytic combustion chamber and the heat exchange chamber inclines towards one side of the heat exchange chamber, so that the area of the catalytic bed can be increased, the waste gas is further sufficiently subjected to catalytic oxidation, and the catalytic oxidation effect is improved.
In one embodiment of the present invention, as shown in fig. 5 and 6, a branch pipe 37 for connecting with the pipe joint 3 of the adsorption tank 1 is provided on the side of the discharge pipe 25, and a second fan 38 for supplying fresh air is provided on the branch pipe 37. High-temperature desorption waste gas generates carbon dioxide and water vapor after catalytic combustion, and the high-temperature vapor heats air and then enters the adsorption box body through the branch pipe, so that desorption treatment can be performed on saturated activated carbon, and the regeneration of the activated carbon is realized. Utilize the second fan to supply the fresh air volume to high temperature hot-air, play the effect of temperature regulation simultaneously, avoid hot-air high temperature to influence activated carbon desorption effect.
The desorption regeneration system works according to the following principle: high concentration desorption waste gas that the active carbon desorption goes out is pumped to the catalytic oxidation case through first fan again and is carried out thermal oxidation treatment, and the evacuation after oxidizing desorption waste gas into carbon dioxide and water, heat partly maintains self thermal oxidation, and the remaining part is used for the heated air to carry out desorption active carbon and uses. Finally, the purposes of regeneration treatment of the activated carbon, heat recycling and standard emission of waste gas are achieved.
Wherein, the first fan and the second fan are both high-pressure vacuum blowers to provide power for extracting gas; first fan and second fan all have the converter, can control the rotational speed and reduce the consumption of electric power.
Further optimizing the above technical solution, as shown in fig. 1 and 2, a temperature control panel 47 and a plurality of temperature sensors 40 electrically connected to the controller are arranged on the side wall of the adsorption box body 1, two temperature sensors 40 are arranged below each layer of the activated carbon bed 2, and the two temperature sensors 40 are correspondingly arranged at the two ends of the activated carbon bed 2, the temperature sensors 40 below the activated carbon bed 2 are electrically connected to the temperature control panel 47, and the temperatures of the air inlet channel 7 and the air outlet channel 8 can be visually displayed on the temperature control panel 47. Meanwhile, a temperature sensor 40 and a temperature control valve 41 are provided on the desorption exhaust gas pipe 22 discharged from the adsorption tank body, a temperature control valve 41 is provided on the branch pipe 37 connected to the pipe joint 3 of the adsorption tank body 1, and the temperature sensor 40, the temperature control valve 41 and the temperature control valve 41 on the branch pipe 37 on the desorption exhaust gas pipe 22 discharged from the adsorption tank body 1 are controlled in a chain manner by the controller 39. When the temperature sensors at the two ends of the activated carbon bed detect that the temperature is ultrahigh, the temperature sensors send alarm signals to the controller, and the controller immediately sends instructions to the second fan to supplement fresh air into the branch pipes entering the adsorption box body so as to adjust the temperature in the adsorption box body. Meanwhile, the branch pipe 37 is connected to the desorption exhaust gas pipe 22 through a bypass pipe 42, and a temperature control valve 41 is provided on the bypass pipe 42, by which the flow of the hot air into the adsorption tank is controlled.
In addition, an air supplementing pipe 43 is further arranged at the inlet of the first fan 17, a temperature regulating valve 41 is arranged on the air supplementing pipe 43, temperature sensors 40 are respectively arranged on the heat exchange chamber 21, the heating chamber 19, the catalytic bed 23 and the catalytic combustion chamber 18, and the temperature sensors 40 on the catalytic bed 23 and the temperature regulating valve 41 on the air supplementing pipe 43 are controlled in an interlocking manner through a controller 39. When the temperature detected by the catalytic bed is ultrahigh, the temperature sensor sends an alarm signal to the controller, the controller sends an instruction to the temperature regulating valve on the air supplementing pipe, and the temperature regulating valve is opened to supplement air to reduce the temperature; the other temperature sensors 41 are all electrically connected with the controller 39, and the temperature can be visually observed through the controller, so that the purpose of monitoring the temperature of each gas on line is realized.
In fig. 1, solid arrows indicate the flow direction of the exhaust gas before and after entering and exiting the adsorption tank, hollow arrows indicate the flow direction of the desorbed exhaust gas after being desorbed from the activated carbon in the adsorption tank, and solid arrows indicate the flow direction of the hot air exhausted from the heat exchange chamber after the desorbed exhaust gas is catalytically combusted. The specific working process of the invention is as follows:
the waste gas to be treated is input into the adsorption box body through the adsorption air inlet pipe, and is discharged from the adsorption air outlet pipe after being adsorbed by the multi-layer activated carbon bed. And after the activated carbon in the activated carbon bed reaches a saturated state, closing the pressure regulating valves on the adsorption air inlet pipe and the adsorption air outlet pipe, and stopping the waste gas adsorption treatment. Opening a temperature regulating valve on the branch pipe, inputting high-temperature hot air into the adsorption box body, leading the reactivation carrier hot air to pass through the activated carbon bed in a counter-flow direction, heating adsorbed organic matters to enhance Brownian motion so as to separate from physical adsorption force of the activated carbon, and carrying out the organic matters to realize regeneration and reactivation of the activated carbon; utilize first fan to pump the desorption waste gas that contains VOCs to the heat transfer chamber through desorption waste gas pipe and preheat and carry out the intensification once, reentry heating chamber further heats desorption waste gas to the required ignition temperature of catalytic combustion, the waste gas that reaches the ignition point through the heating passes through the catalyst bed, make it take place catalytic oxidation reaction under the catalyst effect, finally decompose organic matter into carbon dioxide and water, heat partly carries out the heat exchange with the desorption waste gas in the heat transfer chamber and maintains self thermal oxidation temperature, the remainder is used for heating the air through the branch pipe and carries out the desorption use to the activated carbon in the adsorption box.
In the treatment method, due to the action of the catalyst, the ignition temperature of combustion of the VOCs waste gas is reduced to 300 ℃ which is greatly lower than the combustion temperature 670 ℃ of the direct combustion method, so that the energy consumption of the catalytic oxidation method is far lower than that of the direct combustion method. Meanwhile, under the action of the activity of the catalyst, high-temperature gas generated after reaction enters the heat exchanger again, and is subjected to heat transfer exchange with low-temperature desorption waste gas in the heat exchange pipe, the high-temperature gas is cooled, the low-temperature waste gas is heated and preheated, and finally clean tail gas is discharged into the atmosphere at a lower temperature, so that the double aims of energy conservation and standard emission are achieved.
In summary, the invention is a device which can be operated independently without any field installation, is convenient for treating temporary exhaust emission of oil refining and chemical plants, is especially suitable for treating volatile organic gases randomly emitted in petrifaction, oil refining, wharfs, storage tanks and the like, and achieves the aim of treating harmful volatile gases generated on site. The method can remove the waste gas desorbed by the activated carbon by high-temperature thermal oxidation with a removal rate of 99.99 percent and discharge the waste gas into the atmosphere after reaching the discharge standard.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and thus the present invention is not limited to the specific embodiments disclosed above.

Claims (10)

1. A mobile exhaust treatment device, characterized in that: the device comprises an adsorption box body for purifying waste gas and a desorption regeneration system for regenerating activated carbon, wherein the adsorption box body and the desorption regeneration system can be arranged on a transport vehicle; the adsorption box is characterized in that a plurality of layers of activated carbon beds which are arranged in parallel are arranged inside the adsorption box body, at least two groups of air inlets and air outlets are arranged on the side wall of the adsorption box body, pipe joints are arranged outside the air inlets and the air outlets, the first group of air inlets and the first group of air outlets are respectively connected with an adsorption air inlet pipe and an adsorption air outlet pipe, and the second group of air inlets and the second group of air outlets are connected with a desorption regeneration system; two sets of air inlets and air outlets are arranged on two side walls of the adsorption box body in a staggered mode and used for enabling the flow directions of waste gas to be purified and hot air of the desorption regeneration system to be opposite in the adsorption box body.
2. The mobile exhaust treatment device of claim 1, wherein: the multi-layer activated carbon bed is arranged in parallel from top to bottom, the left side and the right side of the multi-layer activated carbon bed are respectively provided with a baffle plate corresponding to the air inlet and the air outlet, the upper side and the lower side of the activated carbon bed are provided with an air inlet channel and an air outlet channel in a staggered manner, and the baffle plates at the two sides are respectively provided with air holes corresponding to the air inlet channel and the air outlet channel; an air inlet main channel communicated with the pipe joint is arranged between the left baffle and the left side wall of the adsorption box body, and an air exhaust main channel communicated with the pipe joint is arranged between the right baffle and the right side wall of the adsorption box body; the air holes on the left baffle plate are communicated with the air inlet main channel and the air inlet channel, and the air holes on the right baffle plate are communicated with the air outlet main channel and the air outlet channel; the air holes on the left baffle are arranged by two layers of activated carbon beds, and the air holes on the right baffle and the air holes on the left baffle are arranged in a vertically staggered manner; the outside of bleeder vent all is equipped with the detachable valve plate on left side baffle and the right side baffle.
3. The mobile exhaust treatment device of claim 2, wherein: activated carbon is filled in the net cage of the activated carbon bed; be equipped with dress charcoal mouth on the lateral wall of absorption box, dress charcoal mouth department is equipped with the closure plate, the outside of closure plate is equipped with the handle.
4. The mobile exhaust treatment device of claim 2, wherein: the inner surface of the top plate of the adsorption box body is provided with a plurality of spray headers, the spray headers are communicated with spray pipes used for conveying cooling water, and the spray pipes are arranged outside the adsorption box body; two detection ports are arranged on the side wall of the adsorption box body, and the two detection ports are respectively communicated with the air inlet main channel and the air outlet main channel; and a blow-off pipe which is respectively communicated with the air inlet main channel and the air exhaust main channel is arranged below the base of the adsorption box body.
5. The mobile exhaust treatment device of claim 2, wherein: the desorption regeneration system comprises a catalytic oxidation box and a first fan, a catalytic combustion chamber, a heating chamber with a heater and a heat exchange chamber with a heat exchange tube are arranged in the catalytic oxidation box, a second group of air inlets and air outlets of the adsorption box body are respectively connected with an air inlet of the heat exchange tube and an air outlet of the heat exchange chamber through pipelines, and the air outlet of the heat exchange tube faces the heating chamber; the inlet of the first fan is connected with the pipe joint of the adsorption box body through a desorption waste gas pipe, and the outlet of the first fan is connected with the air inlet of the heat exchange pipe and used for conveying desorption waste gas after desorption of active carbon in the adsorption box body to the heat exchange pipe, the heating chamber and the catalytic combustion chamber; the catalytic combustion chamber is separated from the heating chamber and the catalytic combustion chamber is separated from the heat exchange chamber through a catalytic bed containing a catalyst, air holes are formed in the catalytic bed, and heated desorption waste gas enters the catalytic combustion chamber from the heating chamber and enters the heat exchange chamber from the catalytic combustion chamber; and the top of the heat exchange chamber is provided with a discharge pipe connected with a chimney.
6. The mobile exhaust treatment device of claim 5, wherein: the heating chamber is arranged below the heat exchange chamber, a middle plate is arranged between the heat exchange chamber and the heating chamber, the left side of the middle plate is connected with a catalytic bed, and the other three sides of the middle plate are connected with the inner wall of the catalytic oxidation box; the catalytic combustion chamber is arranged on the left side of the heating chamber and the heat exchange chamber, the first fan is arranged on the right side of the catalytic oxidation box, and an air inlet of the heat exchange tube is communicated with a desorption waste gas tube outside the catalytic oxidation box.
7. The mobile exhaust treatment device of claim 6, wherein: a partition plate is arranged in the middle of the heat exchange chamber, the front side and the rear side of the partition plate are connected with the inner wall of the catalytic oxidation box, a gap is formed between the right side of the partition plate and the inner wall of the catalytic oxidation box, the left side of the partition plate is connected with the top of the catalytic oxidation box through an inclined transition plate, the front side and the rear side of the transition plate are connected with the inner wall of the catalytic oxidation box, and the top of the catalytic bed is connected with the lower end of the transition plate; and the inlet of the discharge pipe is arranged on the left side of the heat exchange pipe.
8. The mobile exhaust treatment device of claim 5, wherein: the catalytic bed between the catalytic combustion chamber and the heating chamber is of a honeycomb structure with honeycomb channels arranged inside, and heat storage ceramic honeycomb bricks are paved on the catalytic bed towards the catalytic combustion chamber and two sides of the heating chamber.
9. The mobile exhaust treatment device of claim 5, wherein: the side of delivery pipe is equipped with the branch pipe that is used for linking to each other with adsorption tank body union coupling, be equipped with the second fan that is used for mending new trend on the branch pipe.
10. The mobile exhaust gas treatment device according to any one of claims 5 to 9, wherein: the side wall of the adsorption box body is provided with a temperature control panel and a plurality of temperature sensors which are electrically connected with the controller, two temperature sensors are arranged below each layer of activated carbon bed and are correspondingly arranged at two ends of the activated carbon bed, and the temperature sensors below the activated carbon bed are electrically connected with the temperature control panel; a temperature sensor and a temperature regulating valve are arranged on a desorption waste gas pipe discharged from the adsorption box body, a temperature regulating valve is arranged on a pipeline between the heat exchange chamber and the adsorption box body, and the temperature sensor and the temperature regulating valve on the desorption waste gas pipe discharged from the adsorption box body and the temperature regulating valve on the pipeline between the heat exchange chamber and the adsorption box body are all controlled in an interlocking manner through a controller; a pipeline between the heat exchange chamber and the adsorption box body is connected with a desorption waste gas pipe through a bypass pipe, and a temperature regulating valve is arranged on the bypass pipe; an inlet of the first fan is provided with an air supplementing pipe, the air supplementing pipe is provided with a temperature regulating valve, the heat exchange chamber, the heating chamber, the catalytic bed and the catalytic combustion chamber are respectively provided with a temperature sensor, and the temperature sensor on the catalytic bed and the temperature regulating valve on the air supplementing pipe are controlled in an interlocking manner through a controller; and the other temperature sensors are all electrically connected with the controller.
CN201910993912.6A 2019-10-18 2019-10-18 Movable waste gas treatment device Pending CN110585855A (en)

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