CN116139654A - Centralized treatment system for dispersed VOCs emission sources - Google Patents

Centralized treatment system for dispersed VOCs emission sources Download PDF

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Publication number
CN116139654A
CN116139654A CN202111393901.8A CN202111393901A CN116139654A CN 116139654 A CN116139654 A CN 116139654A CN 202111393901 A CN202111393901 A CN 202111393901A CN 116139654 A CN116139654 A CN 116139654A
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adsorption
desorption
dispersed
vocs
subsystem
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李一伟
张亮
范年欢
原光辉
吴兴祥
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Cssc Marine Power Components Co ltd
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Cssc Marine Power Components Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/02—Separation 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
    • B01D53/06—Separation 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 moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation 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 moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/102—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention relates to a centralized treatment system for dispersed VOCs emission sources, which comprises a plurality of dispersed mobile adsorption systems, a desorption regeneration oxidation system and an intelligent monitoring system; the dispersed mobile suction and support system is integrated into a freely movable whole and is used for adsorbing VOCs discharged by a dispersed VOCs discharge source to enable the VOCs to reach the discharge standard; the desorption regeneration oxidation subsystem is used for carrying out concentrated desorption on the dispersed mobile adsorption system and carrying out standard discharge after oxidation on the desorbed high-concentration VOCs, and comprises a plurality of mobile adsorption system docking frames for effectively and quickly docking the dispersed mobile adsorption system; the intelligent monitoring subsystem is used for monitoring the adsorption state of the dispersed mobile adsorption subsystem and the operation data of the desorption regeneration oxidation subsystem, and reasonably arranging adsorption, desorption, oxidation and regeneration processes. The beneficial effects are that the method is used for the centralized treatment of dispersed, intermittent discharge and VOCs discharge treatment with low concentration rate.

Description

Centralized treatment system for dispersed VOCs emission sources
[ field of technology ]
The invention relates to the field of organic waste gas purification treatment, in particular to a centralized treatment system for dispersed VOCs emission sources.
[ background Art ]
Volatile organic compounds, commonly referred to as VOCs, are abbreviations for the first letter of Volatile Organic Compounds. Along with the increasing severity of environmental problems, VOCs (volatile organic compounds) treatment becomes one of the important work of environmental treatment in China, the fixed pollution sources, the high-concentration and high-rate discharge fields or enterprises are effectively treated by on-site arrangement of treatment devices, and the treatment mode is very effective for pollution sources with larger discharge load, continuous discharge and stable concentration, but has higher investment cost and treatment cost for scattered discharge sources with intermittent discharge, low discharge concentration and small rate, and has certain resource waste.
Aiming at intermittent emission, low-emission concentration and low-rate park dispersion enterprises, repair paint enterprises and small-sized processing enterprises, the conventional pollution source on-site setting processing device cannot meet the processing requirements of the working conditions, and under the environment-friendly high-pressure treatment, the VOCs emission treatment capable of effectively solving the problems of dispersion, intermittent emission and low-concentration rate is required, meanwhile, the low-cost safe intelligent operation is realized, and the total pollutant emission amount is controlled.
[ invention ]
The invention aims to provide a centralized treatment system for dispersed, intermittent emission and low-concentration-rate VOCs emission treatment.
In order to achieve the purpose, the technical scheme adopted by the invention is that the concentrated treatment system for the dispersed VOCs emission sources comprises a plurality of dispersed mobile adsorption systems, a desorption regeneration oxidation system and an intelligent monitoring system; the dispersed mobile suction and support system is integrated into a freely movable whole and is used for adsorbing VOCs discharged by a dispersed VOCs discharge source to enable the VOCs to reach the discharge standard; the desorption regeneration oxidation subsystem is used for carrying out concentrated desorption on the dispersed mobile adsorption system and carrying out standard discharge after oxidation on the desorbed high-concentration VOCs, and comprises a plurality of mobile adsorption system docking frames for effectively and quickly docking the dispersed mobile adsorption system; the intelligent monitoring subsystem is used for monitoring the adsorption state of the dispersed mobile adsorption subsystem and the operation data of the desorption regeneration oxidation subsystem, and reasonably arranging adsorption, desorption, oxidation and regeneration processes; the intelligent monitoring subsystem comprises a processor and a memory, wherein the memory stores a program, and the program realizes the process of scattered adsorption and concentrated desorption when being executed by the processor, and comprises the following steps:
s1, forming an adsorption combination at each dispersed place of a dispersed VOCs emission source and a dispersed mobile suction cup system, desorbing VOCs waste gas generated by the dispersed VOCs emission source, and executing a step S2 after a plurality of dispersed mobile suction cup systems send out saturation signals;
s2, a plurality of movable adsorption subsystem docking frames on the desorption regeneration oxide subsystem dock a plurality of dispersed movable adsorption subsystem, the dispersed movable adsorption subsystem is subjected to concentrated desorption and oxidation treatment, and when the desorption regeneration oxide subsystem sends out a regeneration signal, the step S3 is executed;
s3, the regenerated dispersed mobile suction aconite system and the dispersed VOCs emission source form an adsorption combination again, and the step S1 is executed.
Preferably, the desorption regeneration oxidation subsystem in the step S2 performs desorption regeneration oxidation in the valley electric region.
Preferably, the intelligent monitoring subsystem records the working rule of the dispersed VOCs emission source, and reasonably plans the adsorption and desorption time and sequence of the dispersed mobile suction cup system.
Preferably, the intelligent monitoring subsystem intelligently monitors the concentration, temperature and pressure operation data of the desorption regeneration oxidation subsystem.
Preferably, the dispersion mobile adsorption system comprises an adsorption bed and an adsorption fan, wherein the adsorption bed comprises an adsorption inlet, an adsorption outlet, a desorption inlet and a desorption outlet; the adsorption bed contains adsorption materials and is used for adsorption purification and high Wen Shicheng desorption regeneration at normal temperature; the adsorption fan is used for providing aerodynamic force for adsorption; the adsorption inlet is connected with the dispersed VOCs emission source, and the adsorption outlet is connected with the adsorption fan; the desorption inlet and the desorption outlet are used for docking the desorption regeneration oxidation subsystem.
Preferably, the desorption regeneration oxidation subsystem further comprises an oxidation device, a heat exchanger and a regeneration fan, wherein the oxidation device is used for carrying out oxidation reaction on high-concentration VOCs waste gas generated by desorption and oxygen and then discharging the high-concentration VOCs waste gas up to standard, the heat exchanger is used for carrying out desorption on high-temperature low-concentration VOCs waste gas generated by oxidation reaction, and the regeneration fan provides aerodynamic force for desorption; the size of the butt joint frame of the movable suction cup system is consistent with that of the dispersed movable suction cup system, and the butt joint frame comprises a desorption butt joint inlet and a desorption butt joint outlet; the desorption butt joint inlet is in butt joint with the desorption inlet of the dispersion movement adsorption system and is used for introducing the high-temperature low-concentration VOCs waste gas generated by the oxidation device and the heat exchanger into the dispersion movement adsorption system for desorption; the desorption butt joint outlet is in butt joint with the desorption outlet of the dispersion movement adsorption system and is used for guiding the high-concentration VOCs waste gas generated by the desorption of the dispersion movement adsorption system into the oxidation device.
The centralized treatment system for the dispersed VOCs emission sources has the following beneficial effects: the dispersed VOCs emission source is collected and adsorbed through the dispersed mobile adsorption system, the dispersed VOCs emission source is sent to the desorption regeneration oxidation system for desorption regeneration after being saturated, and the dispersed mobile adsorption system is used in a rotating way, so that the problems of intermittent emission, low emission concentration, low speed and the like in the treatment of a park dispersed enterprise, a repairing paint enterprise, a small-sized treatment enterprise and the like are solved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a distributed VOCs emissions source centralized processing system.
FIG. 2 is a schematic diagram of a distributed mobile adsorption subsystem design for a distributed VOCs emissions source centralized processing system.
Fig. 3 is a schematic diagram of a desorption regeneration oxidation subsystem design of a centralized treatment system for dispersed VOCs emissions.
Fig. 4 is a diagram of a step of controlling the desorption and the centralized desorption of the intelligent monitoring subsystem for the desorption of the centralized treatment system of the emission sources of the dispersed VOCs.
Reference numerals and components referred to in the drawings are as follows: 1. the system comprises a dispersed VOCs emission source, a dispersed mobile adsorption and adsorption subsystem, a desorption regeneration oxidation subsystem, a 4 intelligent monitoring subsystem, a 5 adsorption bed, a 6 adsorption inlet, a 7 adsorption outlet, a 8 adsorption fan, a 9 desorption inlet, a 10 desorption outlet, a 11 mobile adsorption and adsorption system docking frame, a 12 desorption docking inlet, a 13 desorption docking outlet, a 14 oxidation device, a 15 heat exchanger, a 16 regeneration fan.
[ detailed description ] of the invention
The following description of the embodiments of the present invention will be made more clearly and fully with reference to the accompanying drawings, in which it is shown by way of illustration only, and not by way of limitation, a complete description of the embodiments of the present invention. All other technical solutions obtained by a person skilled in the art without making any inventive effort, based on the following examples of the invention, shall fall within the scope of the invention as claimed.
Examples
The embodiment realizes a centralized treatment system for dispersed VOCs emission sources.
According to the concentrated treatment system for the emission sources of the dispersed VOCs, the dispersed movable adsorption subsystem 2 is used for effectively adsorbing the VOCs emitted by the emission sources of the dispersed VOCs 1 and then discharging the VOCs up to standard, the dispersed movable adsorption subsystem 2 is adsorbed and saturated and then is intensively sent to the desorption regeneration oxidation subsystem 3 for desorption regeneration, the desorbed VOCs are discharged up to standard after being oxidized, and the regenerated dispersed movable adsorption subsystem 2 is used for a VOCs treatment system collected by the emission sources of the dispersed VOCs 1 in the next period and is used for working conditions of intermittent emission, low emission concentration and low speed, such as a garden dispersion enterprise, a repair paint enterprise, a small treatment enterprise and the like. The system has the characteristics of simplicity, low investment operation cost, high-efficiency treatment, capability of meeting emission standards, centralized treatment, safe and standard operation and easiness in maintenance. Effectively solves the problems of dispersed and intermittent emission and VOCs emission treatment with low concentration rate.
In the centralized treatment system for the dispersed VOCs emission sources, the dispersed VOCs emission sources 1 refer to working conditions of intermittent emission, low emission concentration and low speed, such as a park dispersed enterprise, a repair paint enterprise, a small treatment enterprise and the like; comprises a dispersed mobile adsorption subsystem 2, a desorption regeneration oxidation subsystem 3 and an intelligent monitoring subsystem 4; the dispersed mobile adsorption subsystem 2 adsorbs VOCs discharged by the dispersed VOCs discharge source 1 to enable the VOCs to reach the standard and discharge, the desorption regeneration oxidation subsystem 3 concentrates on the dispersed mobile adsorption subsystem 2 to carry out concentrated desorption regeneration, the desorbed high-concentration VOCs are oxidized and discharged after reaching the standard, and the dispersed mobile adsorption subsystem 2 carries out the treatment of the dispersed VOCs discharge source 1 again after regeneration. The intelligent monitoring subsystem 4 detects the adsorption state of the dispersed mobile adsorption subsystem 2 and the operation data of the desorption regeneration oxidation subsystem 3, and reasonably arranges the safety monitoring in the desorption process of the dispersed mobile adsorption subsystem 2 and the desorption regeneration oxidation subsystem 3. Meanwhile, the intelligent monitoring subsystem 4 counts the emission rule of the dispersed VOCs emission source 1 and the operation state of the desorption regeneration oxidation subsystem 3, so that reasonable and intelligent distribution is realized, and the purpose of energy-saving operation is achieved.
The dispersed mobile suction cup system 2 is connected with the dispersed VOCs discharge source 1 through a general pipeline to effectively treat the discharged VOCs, the intelligent monitoring subsystem 4 monitors the adsorption state of the dispersed mobile suction cup system 2, the dispersed mobile suction cup system is transported to the desorption regeneration oxidation subsystem 3 for concentrated desorption regeneration after adsorption saturation, the intelligent monitoring subsystem 4 monitors the operation parameters in the desorption regeneration oxidation subsystem 3 process, and safe operation is kept, so that the dispersed mobile suction cup system 2 reaches an initial state. The intelligent monitoring subsystem 4 is reasonably arranged and controlled to circularly reciprocate, so that the dispersed VOCs emission source 1 is treated efficiently, economically, safely and intelligently.
Further technical scheme, dispersion VOCs emissions source 1 refer to intermittent type nature emission, emission concentration is low, the operating mode that rate is little, like garden dispersion enterprise, repair paint enterprise, small-size processing enterprise etc. have difficult shortcoming that handles with high costs.
According to a further technical scheme, the dispersed mobile suction pendant system 2 is used for treating VOCs discharged by the dispersed VOCs discharge source 1 through normal-temperature adsorption, and the VOCs are sent to the desorption regeneration subsystem 3 for desorption regeneration after adsorption saturation under the monitoring of the intelligent monitoring subsystem 4.
According to a further technical scheme, the dispersed mobile adsorption system 2 consists of an adsorption bed 5, an adsorption inlet 6, an adsorption outlet 7, an adsorption fan 8, a desorption inlet 9 and a desorption outlet 10; the adsorption bed 5 contains adsorption materials, and can complete adsorption purification at normal temperature and desorption regeneration at high temperature; the adsorption inlet 6 is connected with the discharge holes of the dispersed VOCs discharge source 1 and is used for sending the collected VOCs into the adsorption bed 5 for adsorption purification; the adsorption outlet 7 discharges purified waste gas and is connected with the adsorption bed 5 and the adsorption fan 8; the adsorption fan 8 provides aerodynamic force for adsorption; the desorption inlet 9 and the desorption outlet 10 are in butt joint with the desorption regeneration oxidation subsystem 3 for desorption regeneration; the dispersion and movement adsorption subsystem 2 is integrated into a whole, can move freely, and is in butt joint with the dispersion VOCs emission source 1 and the desorption regeneration oxidation subsystem 3, and the running state of the dispersion and movement adsorption subsystem is operated under the monitoring control of the intelligent monitoring subsystem.
According to a further technical scheme, the desorption regeneration oxidation subsystem 3 consists of a movable adsorption system docking frame 11, a desorption docking inlet 12, a desorption docking outlet 13, an oxidation device 14, a heat exchanger 15 and a regeneration fan 16; the movable suction cup system docking frame 11 is connected with the dispersed movable suction sub-system 2, and the size of the movable suction cup system docking frame is consistent with that of the dispersed movable suction cup system 2, so that the movable suction cup system docking frame can be effectively and quickly docked; the desorption docking inlet 12 is docked with the desorption inlet 6 of the dispersion movement adsorption subsystem 2, and the waste gas generated by the desorption regeneration oxidation subsystem 3 is led into the dispersion movement adsorption subsystem 2 for desorption; the desorption butt joint outlet 13 is in butt joint with the desorption outlet 7 of the dispersion movement adsorption subsystem 2, and high-concentration VOCs waste gas generated by the dispersion movement adsorption subsystem 2 is led into the desorption regeneration oxidation subsystem 3 for oxidation reaction and is discharged after reaching the standard; the oxidation device 14 processes the high-concentration VOCs waste gas generated by the dispersion and movement adsorption subsystem 2, so that the high-concentration VOCs waste gas and oxygen are subjected to oxidation reaction and then discharged after reaching standards, and the generated heat is used for desorption of the dispersion and movement adsorption subsystem 2 through the heat exchanger 15; the regenerating fan 16 provides aerodynamic force for the desorption regeneration oxidation subsystem 3.
According to a further technical scheme, the intelligent monitoring subsystem 4 is used for monitoring the working state of the dispersed VOCs emission source 1 and intelligently controlling the operation of the dispersed mobile suction aconite system 2 to perform VOCs adsorption operation; the intelligent monitoring subsystem 4 monitors the adsorption state of the dispersed mobile adsorption system 2, and sends out a signal to be desorbed and regenerated after the adsorption state is saturated; the intelligent monitoring subsystem 4 intelligently monitors the operation state of the desorption regeneration oxidation subsystem 3, including concentration, temperature, pressure and the like, so as to ensure the safe operation of the desorption regeneration oxidation process; the intelligent monitoring subsystem 4 can record the working rule of the dispersed VOCs emission source 1, reasonably plan the adsorption and desorption time and sequence of the dispersed mobile adsorption and desorption system 2, ensure the effective treatment of the VOCs emitted by each dispersed VOCs emission source 1, and simultaneously can carry out desorption regeneration oxidation in a valley electric region, thereby reducing the operation cost, reducing the energy waste and reducing the carbon emission.
FIG. 1 is a schematic diagram of a distributed VOCs emissions source centralized processing system. As shown in fig. 1, in the centralized treatment system for dispersed VOCs emission sources of the present embodiment, the dispersed VOCs emission sources 1 are connected with the dispersed mobile suction attachment system 2 to form independent adsorption combinations, and are dispersed in various places. The dispersion movement adsorption subsystem 2 can be matched with the desorption regeneration oxidation subsystem 3 to complete desorption regeneration oxidation, and re-adsorption is performed after regeneration. The intelligent monitoring subsystem 4 is used for intelligently monitoring the whole processing flow of the system.
FIG. 2 is a schematic diagram of a mobile adsorption subsystem design for a distributed VOCs emissions source centralized processing system. As shown in fig. 2, in the present embodiment, the dispersed moving suction cup system 2 is an integral part that can move freely, and is used for treating the VOCs waste gas generated by the dispersed VOCs discharge source 1, and sending the VOCs waste gas to the desorption regeneration subsystem 3 for desorption regeneration. The adsorption bed 5 is provided with adsorption materials, can complete adsorption purification at normal temperature and desorption regeneration at high temperature, structurally comprises an adsorption inlet 6, a desorption inlet 9, an adsorption outlet 7 and a desorption outlet 10, wherein the adsorption inlet 6 and the adsorption outlet 7 are synchronously opened to complete the adsorption process, and the desorption inlet 9 and the desorption outlet 10 are simultaneously opened to complete the desorption process. The adsorption fan 8 is connected with the adsorption outlet 7 to provide aerodynamic force for the adsorption process.
Fig. 3 is a schematic diagram of a desorption regeneration oxidation subsystem design of a centralized treatment system for dispersed VOCs emissions. As shown in fig. 3, in the present embodiment, the desorption regeneration oxidation subsystem 3 is fixed at a certain position, so as to perform desorption regeneration on the dispersion mobile adsorption system 2, and the oxidation device 14 inside the desorption mobile adsorption system is used for oxidizing the desorbed VOCs, so as to finally reach the emission standard. The movable adsorption subsystem docking frame 11 is matched with the dispersed movable adsorption subsystem 2, and can be quickly docked. The desorption butt joint inlet 12 and the desorption butt joint outlet 13 are respectively connected with the desorption inlet 9 and the desorption outlet 10 to form a desorption passage. The oxidation device 14 processes the high-concentration VOCs generated by the dispersion and movement adsorption subsystem 2, and the generated heat is transferred to the desorption docking inlet 12 through the heat exchanger 15, so that the effective desorption of the dispersion and movement adsorption subsystem 2 can be ensured. The regeneration fan 16 provides aerodynamic force for the desorption regeneration oxidation subsystem 3.
Fig. 4 is a diagram of a step of controlling the desorption and the centralized desorption of the intelligent monitoring subsystem for the desorption of the centralized treatment system of the emission sources of the dispersed VOCs. As shown in fig. 4, the specific working steps of the centralized treatment system for dispersing VOCs emission sources in this embodiment are as follows:
1. dispersion adsorption process
The dispersed VOCs discharge source 1 generates VOCs waste gas which enters the adsorption bed 5 in the dispersed mobile adsorption subsystem 2 through the adsorption inlet 6 to be adsorbed at normal temperature, and the purified gas is discharged under the power of the adsorption fan 8 through the adsorption outlet 7. The dispersed VOCs discharge source 1 and the dispersed mobile suction aconite system 2 are dispersed in each place to form an adsorption combination, the adsorption process is carried out under the monitoring of the intelligent monitoring subsystem 4, and when the dispersed mobile suction aconite system 2 is saturated, a signal is sent out to carry out a concentrated desorption process.
2. Concentrated desorption process
And after the adsorption saturation of the dispersion mobile adsorption subsystem 2, a feedback signal starts to enter a concentrated desorption process to the intelligent monitoring subsystem 4, the dispersion mobile adsorption subsystem 2 is transported to the desorption regeneration oxidation subsystem 3 to be in butt joint with the mobile adsorption subsystem butt joint frame 11, the desorption butt joint inlet 12 and the desorption butt joint outlet 13 are respectively connected with the desorption inlet 9 and the desorption outlet 10, under the power of the regeneration fan 16, air is heated by the heat exchanger 15 and enters the dispersion mobile adsorption subsystem 2 to be desorbed, the desorbed gas is oxidized in the oxidation device 14 through the desorption butt joint outlet 13, so that the dispersion mobile adsorption subsystem 2 is regenerated, and the high-concentration VOCs are oxidized by the oxidation device 14 and then discharged after reaching standards through the regeneration fan 16.
3. Regeneration cycle process
Under the intelligent control of the intelligent monitoring subsystem 4, the regenerated dispersed mobile suction aconite system 2 is sent to the dispersed VOCs emission source 1 for re-adsorption, thereby realizing the functions of dispersed adsorption and centralized treatment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1. A centralized treatment system for dispersed VOCs emissions sources, characterized by: comprises a plurality of scattered mobile adsorption systems, a desorption regeneration oxidation system and an intelligent monitoring system; the dispersed mobile suction and support system is integrated into a freely movable whole and is used for adsorbing VOCs discharged by a dispersed VOCs discharge source to enable the VOCs to reach the discharge standard; the desorption regeneration oxidation subsystem is used for carrying out concentrated desorption on the dispersed mobile adsorption system and carrying out standard discharge after oxidation on the desorbed high-concentration VOCs, and comprises a plurality of mobile adsorption system docking frames for effectively and quickly docking the dispersed mobile adsorption system; the intelligent monitoring subsystem is used for monitoring the adsorption state of the dispersed mobile adsorption subsystem and the operation data of the desorption regeneration oxidation subsystem, and reasonably arranging adsorption, desorption, oxidation and regeneration processes; the intelligent monitoring subsystem comprises a processor and a memory, wherein the memory stores a program, and the program realizes the process of scattered adsorption and concentrated desorption when being executed by the processor, and comprises the following steps:
s1, forming an adsorption combination at each dispersed place of a dispersed VOCs emission source and a dispersed mobile suction cup system, desorbing VOCs waste gas generated by the dispersed VOCs emission source, and executing a step S2 after a plurality of dispersed mobile suction cup systems send out saturation signals;
s2, a plurality of movable adsorption subsystem docking frames on the desorption regeneration oxide subsystem dock a plurality of dispersed movable adsorption subsystem, the dispersed movable adsorption subsystem is subjected to concentrated desorption and oxidation treatment, and when the desorption regeneration oxide subsystem sends out a regeneration signal, the step S3 is executed;
s3, the regenerated dispersed mobile suction aconite system and the dispersed VOCs emission source form an adsorption combination again, and the step S1 is executed.
2. A decentralized VOCs emissions source centralized processing system according to claim 1, wherein: and step S2, the desorption regeneration oxidation subsystem carries out desorption regeneration oxidation in the low-valley electricity interval.
3. A decentralized VOCs emissions source centralized processing system according to claim 1, wherein: the intelligent monitoring subsystem records the working rule of the dispersed VOCs emission source and reasonably plans the adsorption and desorption time and sequence of the dispersed mobile suction cup system.
4. A decentralized VOCs emissions source centralized processing system according to claim 1, wherein: the intelligent monitoring subsystem is used for intelligently monitoring the concentration, temperature and pressure operation data of the desorption regeneration oxidation subsystem.
5. A decentralized VOCs emissions source centralized processing system according to claim 1, wherein: the dispersed mobile adsorption system comprises an adsorption bed and an adsorption fan, wherein the adsorption bed comprises an adsorption inlet, an adsorption outlet, a desorption inlet and a desorption outlet; the adsorption bed contains adsorption materials and is used for adsorption purification and high Wen Shicheng desorption regeneration at normal temperature; the adsorption fan is used for providing aerodynamic force for adsorption; the adsorption inlet is connected with the dispersed VOCs emission source, and the adsorption outlet is connected with the adsorption fan; the desorption inlet and the desorption outlet are used for docking the desorption regeneration oxidation subsystem.
6. A decentralized VOCs emissions source centralized processing system according to claim 5, wherein: the desorption regeneration oxidation subsystem further comprises an oxidation device, a heat exchanger and a regeneration fan, wherein the oxidation device is used for carrying out oxidation reaction on high-concentration VOCs waste gas generated by desorption and oxygen and then discharging the high-concentration VOCs waste gas up to standard, the heat exchanger is used for carrying out desorption on high-temperature low-concentration VOCs waste gas generated by oxidation reaction, and the regeneration fan provides aerodynamic force for desorption; the size of the butt joint frame of the movable suction cup system is consistent with that of the dispersed movable suction cup system, and the butt joint frame comprises a desorption butt joint inlet and a desorption butt joint outlet; the desorption butt joint inlet is in butt joint with the desorption inlet of the dispersion movement adsorption system and is used for introducing the high-temperature low-concentration VOCs waste gas generated by the oxidation device and the heat exchanger into the dispersion movement adsorption system for desorption; the desorption butt joint outlet is in butt joint with the desorption outlet of the dispersion movement adsorption system and is used for guiding the high-concentration VOCs waste gas generated by the desorption of the dispersion movement adsorption system into the oxidation device.
CN202111393901.8A 2021-11-23 2021-11-23 Centralized treatment system for dispersed VOCs emission sources Pending CN116139654A (en)

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