WO2021098019A1 - 节能减排废气处理系统 - Google Patents

节能减排废气处理系统 Download PDF

Info

Publication number
WO2021098019A1
WO2021098019A1 PCT/CN2019/129845 CN2019129845W WO2021098019A1 WO 2021098019 A1 WO2021098019 A1 WO 2021098019A1 CN 2019129845 W CN2019129845 W CN 2019129845W WO 2021098019 A1 WO2021098019 A1 WO 2021098019A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
energy
treatment
exhaust gas
purification
Prior art date
Application number
PCT/CN2019/129845
Other languages
English (en)
French (fr)
Inventor
孙绍堂
吴龙兵
彭明君
Original Assignee
广州金鹏环保工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州金鹏环保工程有限公司 filed Critical 广州金鹏环保工程有限公司
Publication of WO2021098019A1 publication Critical patent/WO2021098019A1/zh

Links

Images

Classifications

    • 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
    • B01D53/75—Multi-step processes
    • 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
    • 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
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • 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
    • B01D53/84—Biological processes
    • 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
    • B01D53/86—Catalytic processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • 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

Definitions

  • the present disclosure relates to the technical field of exhaust gas treatment, for example, to an energy-saving and emission-reducing exhaust gas treatment system.
  • This article provides an energy-saving and emission-reducing waste gas treatment system.
  • the system includes: a closed loop device, an exhaust gas purification and treatment device, and an energy treatment and recovery device.
  • the closed loop device is configured to realize gas circulation
  • the exhaust gas purification and treatment device is configured to Purify the exhaust gas in the closed loop device
  • the energy processing recovery device is connected to the closed loop device and the exhaust gas purification processing device, and is configured to recover energy from the gas discharged from the exhaust port in the closed loop device Then it is sent to the exhaust gas purification treatment device.
  • the exhaust gas purification treatment device includes a pretreatment unit, a purification treatment unit, and a gas balance unit, the pretreatment unit is connected to the purification treatment unit, and the purification treatment unit is connected to the gas balance unit,
  • the pretreatment unit is configured to use a chemical process and/or a physical process to treat the exhaust gas according to at least one of the exhaust gas composition, exhaust gas concentration, exhaust gas properties, recovery level, reliability level, and economic value level in the closed loop device.
  • the purification treatment unit is configured to further purify the gas processed by the pretreatment unit
  • the gas balance unit is configured to consume the gas generated by the pretreatment unit and the purification treatment unit, The reduced gas is replenished.
  • the pretreatment of the exhaust gas by the pretreatment unit using a chemical process and/or a physical process includes:
  • the pretreatment unit uses at least one method of filtration and dust removal, adsorption concentration, heating desorption, freezing regeneration, catalysis, and oxidation to pretreat the exhaust gas; and/or
  • the pretreatment unit uses at least one of acid-base neutralization, chemical oxidation, washing absorption, extraction separation, and filtration decomposition to pretreat the exhaust gas.
  • the setting of the purification processing unit to further purify the gas processed by the preprocessing unit includes:
  • At least one of the methods of adsorption concentration, heating desorption, freezing recovery, adsorption concentration, catalytic combustion, thermal storage combustion and biodegradation purification is adopted for purification;
  • the waste gas containing inorganic components is purified by at least one of biological washing, biological filtration, acid-base washing and chemical oxidation.
  • the gas balance unit includes: a gas consumption device, a gas supplement device, and a gas quality assurance device. Therefore, the gas consumption device is set to eliminate the gas added during the treatment process, and the gas supplement device is set to treat The gas reduced in the process is supplemented, and the gas quality assurance device is configured to adjust the temperature, humidity, and cleanliness of the processed gas.
  • the closed loop device includes an air inlet, an air outlet, and a safety discharge valve.
  • the energy processing and recovery device is configured to select the corresponding process route and equipment composition for energy recovery according to the characteristic attributes of the gas discharged from the exhaust port.
  • the characteristic attributes of the gas include the temperature value, the humidity value, and the gas Corrosion grade, recyclable grade, climate grade of the area, and at least one of the temperature value, humidity value, and cleanliness grade of the corresponding recycled gas.
  • the energy processing and recovery device is configured as:
  • thermocaloric steam generators Use any one or more of heat exchangers, chillers, heat pumps, and magnetocaloric steam generators for energy recovery, where the recovered energy includes any one or more of hot water, low pressure steam or high temperature heat transfer oil The energy corresponding to matter.
  • the energy-saving emission reduction exhaust gas treatment system further includes: an exhaust fan and a detection control unit, the detection control unit is configured to detect and control the composition and concentration of the gas to be detected, the gas to be detected includes the closed circuit Exhaust gas in the circulation device.
  • the energy saving and emission reduction exhaust gas treatment system further includes a system control unit, the system control unit including at least one of an on-site control device, a remote control device, an application App, or a cloud platform device.
  • the energy-saving and emission-reducing waste gas treatment system provided by this scheme has the functions of three elements: cyclic treatment, extreme purification and gas balance.
  • the gas adopts cyclic treatment and does not exchange with the external gas phase environment.
  • the exhaust gas comes from the system and returns to the system after purification treatment.
  • the purification process the purification technology process and system configuration are optimized, and the most accurate process route and system configuration are selected for different objects to make the treatment effect the best, the operating cost is reasonable, and the cost-effectiveness is the highest. Due to the use of the gas balance unit , So that the total gas volume is kept in balance during the entire waste gas treatment process.
  • FIG. 1 is a structural block diagram of a "zero emission architecture" of an energy-saving and emission-reducing exhaust gas treatment system according to an embodiment
  • Fig. 2 is a structural block diagram of an exhaust gas purification treatment device according to an embodiment
  • FIG. 3 is a schematic diagram of modules of the processing unit 3 of an embodiment
  • FIG. 4 is a schematic structural diagram of a thermal energy processing and recovery device according to an embodiment
  • Fig. 5 is a schematic structural diagram of a cold energy energy processing and recovery device according to an embodiment
  • Figure 6 is a schematic diagram of the structure of a traditional printing industry exhaust gas treatment module
  • FIG. 7 is a schematic structural diagram of an energy-saving and emission-reducing exhaust gas treatment system based on a zero-emission architecture for screen printing according to an embodiment
  • FIG. 8 is a schematic structural diagram of another energy-saving and emission-reduction exhaust gas treatment system based on a zero-emission architecture for screen printing according to an embodiment
  • FIG. 9 is a schematic structural diagram of yet another energy-saving and emission-reducing exhaust gas treatment system based on a zero-emission architecture for screen printing according to an embodiment.
  • Air replacement space such as garbage unloading hall, garbage compression transfer station, garbage sorting production line, sewage treatment, etc., all production workshops and spaces that need to be ventilated;
  • Air displacement production system feed, food, sludge (feces, garbage) composting and fermentation, shoemaking, painting (spraying) drying, etc.
  • the main response markets include:
  • the energy-saving emission reduction market and the exhaust gas treatment market can also be classified as an integrated energy-saving emission reduction and exhaust gas treatment market, that is, the elimination of exhaust gas pollution in the process of energy saving and emission reduction, and the elimination of exhaust gas pollution while reducing energy consumption in the production process.
  • Circulating treatment The gas must be treated in a cyclic manner, and must not be exchanged with the external gas phase environment.
  • the exhaust gas comes from the system, and then returns to the system after purification treatment. Without recycling processing, it is impossible to achieve a "zero emission architecture";
  • Gas balance The total volume of gas in the whole process is neither increased nor decreased. Excess gas is removed by corresponding technology, and consumed gas is supplemented by corresponding technology. What is missing, what is added, what is produced, what is eliminated. The gas balance cannot be achieved, and ultimately the "zero emission architecture" cannot be truly achieved.
  • Fig. 1 is a structural block diagram of the “zero emission architecture” of an energy-saving and emission-reduction waste gas treatment system according to an embodiment.
  • the production raw materials are processed by the production unit 10 to obtain specific products, wherein the energy-saving and emission-reduction waste gas treatment
  • the system includes: a production unit 10, an air inlet 11 and an air outlet 12, an energy processing and recycling device 2, an air inlet 21 and an air outlet 22, an exhaust gas purification treatment device 3, an air inlet 31 and an air outlet 32,
  • the closed loop device 1 is composed of a production unit 10, an air inlet 11, an air outlet 12, a pressure relief valve (ie, a safety discharge valve) 13, and various connected pipelines, air inlets, air outlets, energy processing and recovery
  • the device 2 and the exhaust gas purification and treatment device 3 are composed, wherein the closed-circuit circulation device 1 is set to realize gas circulation to complete the closed-circuit circulation and safe and stable operation of the entire system, and the exhaust gas purification and treatment device 3 is set to treat the exhaust gas
  • the circulation device that is, the exhaust port 12 of the production unit 10) and the exhaust gas purification treatment device 3 are connected, and are arranged to recover the energy of the gas discharged from the exhaust port in the closed loop device and send it to the exhaust gas purification treatment device 3.
  • the energy treatment recovery device 2 Equipped with energy (heat or cold) treatment, recovery and utilization devices, which can effectively treat the non-recycling value, and the energy that has the value of recovery and is discharged into the environment along with the exhaust gas to be recovered and used.
  • the exhaust gas purification treatment device includes a pretreatment unit, a purification treatment unit, and a gas balance unit.
  • the pretreatment unit is connected to the purification treatment unit, and the purification treatment unit is connected to the gas balance unit.
  • the pretreatment unit is configured to perform chemical and/or physical processes on the exhaust gas according to at least one of exhaust gas composition, exhaust gas concentration, exhaust gas properties, recovery level, reliability level, and economic value level in the closed loop device.
  • Pretreatment; the purification treatment unit is configured to further purify the gas processed by the pretreatment unit;
  • the gas balance unit is configured to consume the gas generated by the pretreatment unit and the purification treatment unit to reduce The gas is replenished.
  • Fig. 2 is a structural block diagram of an exhaust gas purification treatment device according to an embodiment.
  • the exhaust gas purification treatment device includes three treatment units, treatment unit 1 (301), treatment unit 2 (302), and treatment unit 3(303), corresponding to the pre-processing unit, purification processing unit and gas balance unit, respectively, processing unit 1 and processing unit 2 are connected through a connecting pipe 3012, processing unit 2 and processing unit 3 are connected through a connecting pipe 3023, and processing unit 1 is connected Exhaust gas generated in the exhaust gas generating space 300, the exhaust gas generating space 300 and the processing unit 1 are connected by a pipe 3001, wherein the exhaust gas generating space 300 includes an exhaust port 3010 and an intake port 331, and the processing unit 1 includes an intake port 3011 and an exhaust port 3012, the processing unit 2 includes an air inlet 3021 and an air outlet 3022, and the processing unit 3 includes an air inlet 3031 and an air outlet 335.
  • FIG. 3 is a schematic diagram of a module of the processing unit 3 in an embodiment.
  • the processing unit 3 ie, a gas balance unit
  • the processing unit 3 includes a gas supplement device 3031, a gas elimination device 3032, a temperature adjustment device 30331, and a humidity adjustment device 30332 , Cleanliness processing device 30333 and exhaust fan 3034.
  • the pretreatment unit (that is, the treatment unit 1) using chemical processes and/or physical processes to pretreat the exhaust gas includes: the pretreatment unit uses filtration and dust removal, adsorption concentration, heating desorption, freezing regeneration, catalysis, and oxidation. At least one method is used to pretreat the exhaust gas; and/or the pretreatment unit uses at least one method of acid-base neutralization, chemical oxidation, washing absorption, extraction separation, and filtration decomposition to pretreat the exhaust gas.
  • the pretreatment unit performs pretreatment according to the composition, concentration, nature, recovery necessity, technical reliability and economic value of the exhaust gas.
  • the purpose is to purify the exhaust gas to the limit, meet the conditions of recycling and reuse, and reduce the load and difficulty of subsequent process treatment.
  • the processes used include physical treatment processes (such as: filtration and dust removal, adsorption, concentration, heating, desorption, freezing regeneration, catalysis, oxidation), chemical treatment processes (such as: acid-base neutralization, chemical oxidation, washing absorption, extraction separation, filtration decomposition) Wait.
  • physical treatment processes such as: filtration and dust removal, adsorption, concentration, heating, desorption, freezing regeneration, catalysis, oxidation
  • chemical treatment processes such as: acid-base neutralization, chemical oxidation, washing absorption, extraction separation, filtration decomposition
  • the purification treatment unit is used to select precise processes for the exhaust gas treatment: for exhaust gas containing organic components (such as various VOCs, etc.), adsorption and concentration, heating desorption, and freezing recovery; or/and adsorption (activated carbon (carbon fiber) , Macroporous resin, runner) concentration, heating desorption, catalytic combustion (RCO); or/and regenerative combustion (RTO); biodegradation purification treatment; for exhaust gas containing inorganic components (such as sulfur, nitrogen, etc.), Purification treatment is performed by biological washing, and/or biological filtration (trickle filtration), and/or acid-base washing, and/or chemical oxidation.
  • organic components such as various VOCs, etc.
  • adsorption and concentration such as various VOCs, etc.
  • heating desorption, and freezing recovery or/and adsorption (activated carbon (carbon fiber) , Macroporous resin, runner) concentration, heating desorption, catalytic combustion (RCO); or/and regenerative combustion (RTO
  • the gas balance unit is used for the quality assurance treatment process required for the exhaust gas recycling process, including the treatment of (increased) gas generated by the pretreatment unit and the purification treatment unit during the treatment process (biological reaction or chemical reaction).
  • the gas consuming device 3031 is designed to increase the different types, characteristics and properties of the gas in the reaction process of the processing unit 2, and use corresponding process technology for processing. For example, the carbon dioxide generated during the microbial decomposition process is chemically absorbed.
  • the general reaction formula is Yes:
  • the gas supplement device 3031 is for the oxygen consumed in the reaction process of the processing unit 1 and the processing unit 2, and an oxygen generating device is used to supplement the oxygen consumed, so as to maintain the balance of the total amount of gas in the entire system.
  • the functions of the temperature adjusting device 30331, the humidity adjusting device 30332, and the cleanliness processing device 30333 are to ensure that the quality of the gas processed by the exhaust gas purification processing device meets the quality requirements of the production system.
  • each unit is not independent of each other but completely separated.
  • the respective process technology and equipment composition are mainly based on the nature and characteristics of the exhaust gas. The principle of optimal configuration is selected. The high temperature and high humidity containing dust needs to be cooled and dehumidified, and then recycled and reused.
  • the main goal of the exhaust gas purification treatment device is to filter dust and cool and dehumidify, which can be considered together with the energy treatment and recovery device; for the exhaust gas containing VOC organic components ,
  • the main goal of the exhaust gas purification treatment device is to maximize the separation and recovery of the VOC components in the exhaust gas from the energy treatment and recovery device, and then use physical, chemical or biological degradation processes to remove the residual organic components in the gas to the greatest extent to meet the cycle Quality requirements for use; for general waste gas that needs to be purified (such as: all kinds of domestic sewage and industrial sewage treatment, garbage compression, sorting, composting fermentation and incineration pre-treatment for power generation, sludge drying, food waste treatment, workshop Exhaust gas generated by air replacement processes such as ventilation), the main goal of the exhaust gas purification treatment device is pure exhaust gas treatment, and the quality of the treated gas meets the requirements of recycling.
  • the energy processing and recovery device is used to select the corresponding process route and equipment composition for energy recovery according to the characteristic attributes of the gas discharged from the exhaust port.
  • the characteristic attributes of the gas include the temperature value, humidity value, and gas corrosion of the gas. At least one of grade, recyclable grade, climate grade of the area, and the temperature value, humidity value, and cleanliness grade of the corresponding recycled gas.
  • Fig. 4 is a schematic structural diagram of a thermal energy processing and recovery device according to an embodiment.
  • the energy processing and recovery device 2 includes a filter, a regenerator, an evaporator, and a condenser.
  • a compressor 232 and an expansion valve 234 are connected between the evaporator 231 and the condenser 233 for heat energy processing and recovery.
  • Fig. 5 is a schematic structural diagram of a cold energy energy processing and recovery device according to an embodiment.
  • the energy processing and recovery device 2 includes a filter, a regenerator, a heat exchanger, and a chiller, which is used to process and recover cold energy.
  • the energy processing and recovery device in this scheme has the process route and equipment composition of different forms of energy recovery and utilization devices configured according to the characteristics of the energy in the exhaust gas.
  • the energy recovery and utilization device adopts the optimization according to the comprehensive factors such as the temperature, humidity, corrosiveness of the gas, the recyclable value and the climate characteristics of the region, as well as the temperature, humidity, and cleanliness of the recycled gas.
  • the energy recovery and utilization process and supporting optimized system equipment is not limited to the comprehensive factors such as the temperature, humidity, corrosiveness of the gas, the recyclable value and the climate characteristics of the region, as well as the temperature, humidity, and cleanliness of the recycled gas.
  • the energy recovery and utilization process should adopt different forms Heat exchanger, or/and chiller, or/and heat pump (or/and high temperature heat pump) technology, or/and magnetic thermal steam generator technology, the recovered heat is hot water or low pressure steam or high temperature heat transfer oil.
  • the moisture contained in the gas is condensed and precipitated during the cooling and heat exchange process, and is discharged out of the environment.
  • the recovered heat can be heated to the set temperature through heat recovery or heat exchange technology equipment, so that part of the recovered heat can be reused in the production system, and the excess heat can be combined with the whole room
  • the enterprise and the surrounding environment need to be comprehensively utilized.
  • FIG. 7 is a schematic structural diagram of a zero-emission architecture-based energy-saving and emission-reduction waste gas treatment system for screen printing provided by this embodiment, which treats high-concentration organic waste gas, and selects direct refrigeration recovery for high-concentration organic waste gas And waste recycling process, as shown in Figure 7, specifically:
  • the low-temperature (about 26 degrees) high-concentration organic waste gas generated in the air-conditioning production workshop first passes through the heat exchanger (recooler) to exchange heat with the high-temperature gas that is recycled after treatment, and recovers the energy (cold capacity) in the air-conditioning cold air discharged from the workshop. ), when the temperature of the air conditioning in the workshop is not reached, the temperature of the circulating return air is adjusted to about 26 degrees after passing through the cooling capacity exchanger to minimize the waste of cooling capacity;
  • the organic waste gas after cold energy recovery directly enters the refrigeration recovery device. According to the characteristics of different organic waste gas, the organic components are frozen, liquefied, and converted from gas to liquid. The liquid waste gas enters the liquid storage tank and then returns to the production workshop for use. Or be sold to professional recycling companies as heterocyclic organic components to reduce production costs;
  • the exhaust gas circulation treatment device process can choose a biological purification system or an ultraviolet photocatalytic purification system, or In other purification processes, the gas after further purification is cooled back to the production workshop, and the cycle is repeated.
  • FIG. 8 is a schematic structural diagram of another energy-saving and emission-reducing waste gas treatment system based on a zero-emission architecture for screen printing according to an embodiment.
  • a recycling treatment process is selected for low-concentration organic waste gas with no recovery value. As shown in Figure 8, it is specifically:
  • the low-temperature (about 26°C) and low-concentration organic waste gas generated in the air-conditioning production workshop first passes through the heat exchanger (recooler) to exchange heat with the high-temperature gas that is recycled after treatment, and recovers the energy (cold capacity) in the air-conditioning cold air discharged from the workshop. ), when the temperature of the air conditioning in the workshop is not reached, the temperature of the circulating return air is adjusted to about 26 degrees after passing through the cooling capacity exchanger to minimize the waste of cooling capacity;
  • the low-concentration organic waste gas with no recovery value after cold recovery is directly entered into the waste gas recycling treatment device for further purification.
  • the waste gas recycling treatment device process can choose a biological purification system, or an ultraviolet photocatalytic purification system, or other purification processes. After further purification, the gas is cooled back to the production workshop, and the cycle is repeated.
  • the cooling capacity of the cooling capacity exchanger can be selected as a chiller.
  • the chiller provides the required cooling capacity for the cooling capacity exchanger through the refrigerated storage tank, and the chiller exchanges heat through the cooling tower to achieve normal and stable operation.
  • FIG. 9 is a schematic structural diagram of another energy-saving and emission-reduction exhaust gas treatment system based on a zero emission architecture for screen printing in an embodiment.
  • organic exhaust gas adsorption and regeneration is selected for medium and low-concentration organic exhaust gas with a certain recovery value.
  • the refrigeration recovery and waste gas recycling treatment process as shown in Figure 9, is specifically:
  • the low-temperature (about 26°C) and low-concentration organic waste gas generated in the air-conditioning production workshop first passes through the heat exchanger (recooler) to exchange heat with the high-temperature gas that is recycled after treatment, and recovers the energy (cold capacity) in the air-conditioning cold air discharged from the workshop. ), when the temperature of the air conditioning in the workshop is not reached, the temperature of the circulating return air is adjusted to about 26 degrees after passing through the cooling capacity exchanger to minimize the waste of cooling capacity;
  • the organic waste gas after cooling recovery directly enters the adsorption concentration device.
  • the waste gas enters the second group of adsorption tanks.
  • the first group of adsorption tanks starts to be heated and regenerated.
  • the organic components in the saturated adsorption tank are heated, blown off, and enter the refrigeration recovery device.
  • the refrigeration recovery device according to the characteristics of different organic waste gas, the organic components are frozen, liquefied, and converted from gas to liquid, and the liquid waste gas enters the storage.
  • the liquid tank is returned to the production workshop for use, or sold as a heterocyclic organic component to a professional recycling company to reduce production costs;
  • the waste gas recycling treatment device process can choose a biological purification system, or an ultraviolet photocatalytic purification system, or other purification processes. After further purification, the gas is cooled back to the production workshop, and the cycle is repeated.
  • the "zero emission architecture" of the energy-saving and emission-reduction exhaust gas treatment system further includes: an exhaust fan and a detection control unit, the detection control unit is used to detect and control the composition and concentration of the gas to be detected, so The gas to be detected includes exhaust gas in the closed loop device.
  • the "zero emission architecture" of the energy-saving and emission-reducing waste gas treatment system further includes: a system control unit, the system control unit including field control equipment, remote control equipment, application App or cloud platform equipment At least one.
  • the system control unit is used to control the entire energy-saving and emission-reduction exhaust gas treatment system as well as various units and nodes.
  • the "zero-emission architecture" of the energy-saving and emission-reducing waste gas treatment system disclosed in this scheme includes the entire air displacement production system and the closed loop structure formed by the air displacement space, the energy treatment contained in the waste gas and its recycling system and waste gas circulation Processing system.
  • the closed loop structure formed by the air displacement production system and the air displacement space includes the inlet and outlet pipes connected between the inlet and outlet of the production system equipment, air inlets, exhaust outlets and emergency safety discharge (pressure relief) valves; energy processing and recycling
  • the system is equipped with energy (heat or cold) treatment, recovery and utilization devices, which can effectively treat the non-recoverable value, and the energy that has the value of recovery and is discharged into the environment along with the waste gas is recovered and used; waste gas recycling treatment
  • waste gas recycling treatment The system will use the optimized recycling and purification technology for the exhaust gas that pollutes the environment to carry out extreme purification to meet the quality requirements of recycled gas; after purification, the gas that meets the requirements of recycled gas is sent back to the initial end of the entire system. So as to achieve the ultimate goal of "zero emission of exhaust gas".
  • the "zero-emission architecture" of energy-saving, emission-reduction and exhaust gas treatment of the present disclosure creatively proposes a brand-new zero-emission governance architecture for air replacement production systems that emits a large amount of exhaust gas pollutants and energy.
  • the "zero-emission architecture” Perform extreme purification on all air displacement production systems that produce waste gas pollution, so that valuable energy can be fully recovered and used, and the purified waste gas will be returned to the production system again and again, and energy and gas recycling will be carried out with related technologies.
  • the units and modules included are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized.
  • the specific names of each functional unit are only for the convenience of distinguishing each other, and are not used to limit the protection scope of this embodiment.

Landscapes

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

Abstract

一种节能减排废气处理系统，基于零排放架构，所述系统包括：闭路循环装置(1)、废气净化处理装置(3)和能量处理回收装置(2)，所述闭路循环装置(1)设置为实现气体循环，所述废气净化处理装置(3)设置为对所述闭路循环装置(1)内的废气进行净化处理，所述能量处理回收装置(2)和所述闭路循环装置(1)以及所述废气净化处理装置(3)相连，设置为对闭路循环装置(1)中排气口(12)排出的气体进行能量回收后送入所述废气净化处理装置(3)。所述系统具备循环处理、极限净化和气体平衡三大要素功能，气体采用循环处理，不与外界气相环境交换，废气从系统中来，净化处理后再回到系统中去，运行成本合理，性价比高，由于气体平衡单元的使用，使得整个废气处理过程中，气体总体积保持平衡，实现零排放。

Description

节能减排废气处理系统
本申请要求以下一项中国专利申请的优先权，申请日为：2019年11月20日，申请号为：201911139047.5，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及废气处理技术领域，例如涉及一种节能减排废气处理系统。
背景技术
随着我国城市化进程的加快，人民生活水平不断提高，人们的环境意识在不断增强，对生态环境的要求越来越高，传统工业环保升级的压力越来越大，而企业的社会责任感也越来越强。
21世纪发动和创新第四次工业革命，是一场全新的绿色工业革命，它的实质和特征，就是大幅度地提高资源生产利用率，经济增长与不可再生资源要素全面脱钩，与二氧化碳等温室气体排放脱钩。以历史视角观察，用工业化的角度观察，使我们清晰地认识到，世界第四次工业革命，即绿色革命已经来临。中国能赶上这一革命的黎明期、发动期，是不易的、也是万幸的。
随着第四次工业革命的发展，我国产业化升级步伐进一步加快，他涉及面之广、影响范围之大、对各行各业触动之深刻，不以人们的意志为转移，产生的巨大动能冲击着整个社会工业生产和人们生活的各个领域。
传统生产过程产生废气污染的各类工业行业、市政、污水处理诸多领域对待产生大气污染的应对之策几乎清一色的事后应付或事后处理，粗放式的工业生产和野蛮式的工业增长造成整个生态环境的急剧恶化，不管南方北方，雾霾 的区域不断扩大，时间持续增长，PM2.5下降缓慢，局部区域还有上升恶化趋势。在“加强环境生态文明建设”等治污的强大政策推动下，生态环境虽然逐步好转，但对待废气污染还仍然被“事后治理”的落后理念所束缚，距离“绿色清洁”生产还有相当长的距离。
发明内容
以下是对本文详细描述的废气零排放物料粉碎装置的概述。本概述并非是为了限制权利要求的保护范围。
本文提供了一种节能减排废气处理系统，所述系统包括：闭路循环装置、废气净化处理装置和能量处理回收装置，所述闭路循环装置设置为实现气体循环，所述废气净化处理装置设置为对所述闭路循环装置内的废气进行净化处理，所述能量处理回收装置和所述闭路循环装置以及所述废气净化处理装置相连，设置为对闭路循环装置中排气口排出的气体进行能量回收后送入所述废气净化处理装置。
一实施例中，所述废气净化处理装置包括预处理单元、净化处理单元和气体平衡单元，所述预处理单元和所述净化处理单元相连，所述净化处理单元和所述气体平衡单元相连，所述预处理单元设置为根据所述闭路循环装置内的废气成分、废气浓度、废气性质、回收等级、可靠性等级和经济价值等级中的至少一种，使用化学工艺和/或物理工艺对废气进行预处理；所述净化处理单元设置为对所述预处理单元处理后的气体进行进一步净化；所述气体平衡单元设置为对所述预处理单元和所述净化处理单元产生的气体进行消耗，减少的气体进行补充。
一实施例中，所述预处理单元使用化学工艺和/或物理工艺对废气进行预处 理包括：
所述预处理单元使用过滤除尘、吸附浓缩、加热脱附、冷冻再生、催化、氧化中的至少一种方式对废气进行预处理；和/或
所述预处理单元使用酸碱中和、化学氧化、洗涤吸收、萃取分离和过滤分解中的至少一种方式对废气进行预处理。
一实施例中，所述净化处理单元设置为对所述预处理单元处理后的气体进行进一步净化包括：
对含有有机成分的废气，采取吸附浓缩、加热脱附、冷冻回收、吸附浓缩、催化燃烧、蓄热燃烧和生物降解净化中的至少一种方式进行净化处理；
对含有无机成分的废气，采取生物洗涤、生物过滤、酸碱洗涤和化学氧化中的至少一种方式进行净化处理。
一实施例中，所述气体平衡单元包括：气体消耗装置、气体补充装置和气体品质保证装置，所以气体消耗装置设置为对处理过程中增加的气体进行消除，所述气体补充装置设置为对处理过程中减少的气体进行补充，所述气体品质保证装置设置为对处理后的气体进行温度、湿度和洁净度的调节。
一实施例中，所述闭路循环装置包括进气口、排气口和安全排放阀。
一实施例中，所述能量处理回收装置设置为根据排气口排出的气体特点属性，选取对应的工艺路线和设备组成进行能量回收，所述气体特点属性包括气体的温度值、湿度值、气体腐蚀等级、可回收利用等级、所在地区气候等级，以及对应的循环回用气体的温度值、湿度值、洁净度等级中的至少一种。
一实施例中，所述能量处理回收装置设置为：
采用热交换器、冷水机组、热泵和磁热蒸汽发生器中的任意一种或多种设备进行能量回收，其中回收的能量包括热水、低压蒸汽或高温导热油中的任意 一种或多种物质对应的能量。
一实施例中，所述节能减排废气处理系统还包括：抽风机和检测控制单元，所述检测控制单元设置为检测和控制待检测气体的成分和浓度，所述待检测气体包括所述闭路循环装置中的废气。
一实施例中，所述节能减排废气处理系统还包括：系统控制单元，所述系统控制单元包括现场控制设备、远程控制设备、应用App或云平台设备中的至少一种。
本方案提供的节能减排废气处理系统，具备循环处理、极限净化和气体平衡三大要素功能，气体采用循环处理，不与外界气相环境交换，废气从系统中来，净化处理后再回到系统中去，在净化处理过程中，净化技术工艺和系统配置最优化，针对不同对象选择最精准的工艺路线和系统搭配以使处理效果最佳，运行成本合理，性价比最高，由于气体平衡单元的使用，使得整个废气处理过程中，气体总体积保持平衡。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
图1为一实施例的一种节能减排废气处理系统的“零排放架构”的结构框图；
图2为一实施例的一种废气净化处理装置的结构框图；
图3为一实施例的处理单元3的模块示意图；
图4为一实施例的一种热能能量处理回收装置的结构示意图；
图5为一实施例的一种冷能能量处理回收装置的结构示意图；
图6为一种传统印刷行业废气处理模块结构示意图；
图7为一实施例的一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图；
图8为一实施例的另一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图；
图9为一实施例的又一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图。
具体实施方式
本方案公开了一种节能减排废气处理系统，其适用的场景包括：
空气置换型空间，如垃圾卸料大厅、垃圾压缩转运站、垃圾分拣生产线、污水处理等，所有需要通风换气生产车间和空间；
空气置换型生产系统：饲料，食品、污泥(粪便、垃圾)堆肥发酵、制鞋、喷漆(喷涂)烘干等。
主要应对市场包括：
节能减排市场和废气处理市场，也可以归类为节能减排和废气处理综合市场，亦即在节能减排过程中消除废气污染，在消除废气污染的同时降低生产过程的能量消耗。
本方案实现的三大要素如下：
循环处理：气体必须采用循环处理，不得与外界气相环境交换，废气从系统中来，净化处理后再回到系统中去，周而复始，循环往复。没有循环处理，就无法实现“零排放架构”；
极限净化：要求气体净化技术工艺和系统配置最优化，针对不同对象选择 最精准的工艺路线和系统搭配，以处理效果最佳，运行成本合理，性价比最高为宜。达不到极限净化，就满足不了“零排放架构”的基本要求；
气体平衡：整个处理过程气体总体积既不增量，又不减量，多余的气体采用相应的技术清除，消耗的气体，采用相应的技术补充，缺少什么，补充什么，产生什么，消除什么。实现不了气体平衡，最终也无法真正达成“零排放架构”。
现对本方案进行系统的具体的描述。
图1为一实施例的一种节能减排废气处理系统的“零排放架构”的结构框图，如图1所示，生产原料经生产单元10处理后得到具体的产品，其中节能减排废气处理系统包括：生产单元10、进气口11和排气口12，能量处理回收利用装置2、进气口21和排气口22，废气净化处理装置3、进气口31和排气口32，其中，闭路循环装置1即由生产单元10、进气口11、排气口12、泄压安全阀(即安全排放阀)13以及连通的各个管道、进气口、排气口、能量处理回收装置2和废气净化处理装置3组成，其中，闭路循环装置1设置为实现气体循环，以完成整个系统的闭路循环和安全稳定运行，废气净化处理装置3设置为对所述闭路循环装置内的废气(如生产单元10产生的废气)进行净化处理，达到循环使用气体的品质要求的气体再次送回到整个系统的初始端，从而实现“废气零排放”的最终目标，能量处理回收装置2和闭路循环装置(即生产单元10的排气口12)以及废气净化处理装置3相连，设置为对闭路循环装置中排气口排出的气体进行能量回收后送入废气净化处理装置3，能量处理回收装置2配置有能量(热量或冷量)处理、回收和利用装置，对无回收价值的可以进行有效处理，而有回收价值、伴随着废气排放到环境中的能量进行回收并加以利用。
在一个实施例中，废气净化处理装置包括预处理单元、净化处理单元和气体平衡单元，所述预处理单元和所述净化处理单元相连，所述净化处理单元和 所述气体平衡单元相连，所述预处理单元设置为根据所述闭路循环装置内的废气成分、废气浓度、废气性质、回收等级、可靠性等级和经济价值等级中的至少一种，使用化学工艺和/或物理工艺对废气进行预处理；所述净化处理单元设置为对所述预处理单元处理后的气体进行进一步净化；所述气体平衡单元设置为对所述预处理单元和所述净化处理单元产生的气体进行消耗，减少的气体进行补充。
图2为一实施例的一种废气净化处理装置的结构框图，如图2所示，该废气净化处理装置包括三个处理单元，处理单元1(301)、处理单元2(302)和处理单元3(303)，分别对应预处理单元、净化处理单元和气体平衡单元，处理单元1和处理单元2通过连通管道3012相连，处理单元2和处理单元3通过连通管道3023相连，处理单元1接入废气产生空间300产生的废气，废气产生空间300和处理单元1通过管道3001相连，其中，废气产生空间300包括排气口3010和进气口331，处理单元1包括进气口3011和排气口3012，处理单元2包括进气口3021和排气口3022，处理单元3包括进气口3031和排气口335。
图3为一实施例中的处理单元3的模块示意图，如图3所示，处理单元3(即气体平衡单元)包括气体补充装置3031、气体消除装置3032、温度调节装置30331、湿度调节装置30332、洁净度处理装置30333以及抽风机3034。
其中，预处理单元(即处理单元1)使用化学工艺和/或物理工艺对废气进行预处理包括：所述预处理单元使用过滤除尘、吸附浓缩、加热脱附、冷冻再生、催化、氧化中的至少一种方式对废气进行预处理；和/或所述预处理单元使用酸碱中和、化学氧化、洗涤吸收、萃取分离和过滤分解中的至少一种方式对废气进行预处理。预处理单元根据废气的成分、浓度、性质、回收必要性、技术可靠性和经济价值废气进行预处理，目的是为废气的极限净化，满足循环回 用的条件而减轻后续工艺处理负荷和难度。采用的工艺包括采用物理处理工艺(比如：过滤除尘、吸附浓缩加热脱附冷冻再生、催化、氧化)、化学处理工艺(比如：酸碱中和、化学氧化、洗涤吸收、萃取分离、过滤分解)等。
其中，净化处理单元用于对废气选择精准的工艺进行处理：对于含有机成分(如含各类VOC等)废气，采用吸附浓缩，加热脱附，冷冻回收；或/和吸附(活性炭(碳纤维)、大孔树脂、转轮)浓缩，加热脱附，催化燃烧(RCO)；或/和蓄热燃烧(RTO)；生物降解净化处理；对于含有无机成分(如含硫、氮等)的废气，采用生物洗涤、和/或生物过滤(滴滤)、和/或酸碱洗涤、和/或化学氧化等工艺进行净化处理。
其中，气体平衡单元用于对废气进行循环过程需要的品质保证处理工艺，包括对预处理单元和净化处理单元在处理过程发生反应(生物反应或化学反应)时产生(增加)的气体的处理、消耗气体(减少)的补充和净化处理单元处理后再次循环进入生产系统时的气体品质的处理，保证整个生产系统的稳定和安全运行。具体的，气体消耗装置3031是针对处理单元2反应过程增加气体的不同种类、特点和性质，采用相应的工艺技术进行处理，比如，微生物分解过程产生的二氧化碳，采用化学吸收的工艺，反应通式是：
2R2O2+2CO2＝R2CO3+O2
气体补充装置3031是针对处理单元1、处理单元2反应过程消耗的氧气，采用配置氧气发生装置补充消耗的氧气，保持整个系统系统气体总量的平衡。
温度调节装置30331、湿度调节装置30332、洁净度处理装置30333的作用是为了保证废气净化处理装置处理后的气体品质符合生产系统的品质需要。
通过上述预处理单元、净化处理单元和气体平衡单元进行气体处理过程中，各个单元并非相互独立而截然分开，各自的工艺技术和设备组成主要根据废气 的性质、特点而选择最优化配置原则，对于含有粉尘的高温高湿需要降温除湿然后循环回用还需要加热的废气，废气净化处理装置的主要目标就是过滤除尘和降温除湿，可以与能量处理回收装置一并考虑；对于含有VOC有机成分的废气，废气净化处理装置的主要目标就是与能量处理回收装置最大限度分离和回收废气中的VOC成分后，采用物理、化学或生物降解工艺，最大限度清除掉气体中残留的有机成分，使其满足循环使用的品质要求；对于一般性需要净化处理的废气(如:各类生活污水和工业污水处理、垃圾压缩、分拣、堆肥发酵和焚烧发电前处理、污泥干化、餐厨垃圾处理、车间通风等空气置换过程产生的废气)，废气净化处理装置的主要目标就是单纯的废气处理，并使处理后的气体品质满足循环使用的要求。
在一个实施例中，能量处理回收装置用于根据排气口排出的气体特点属性，选取对应的工艺路线和设备组成进行能量回收，所述气体特点属性包括气体的温度值、湿度值、气体腐蚀等级、可回收利用等级、所在地区气候等级，以及对应的循环回用气体的温度值、湿度值、洁净度等级中的至少一种。
图4为一实施例的一种热能能量处理回收装置的结构示意图。如图4所示，能量处理回收装置2包括过滤器、回热器、蒸发器、冷凝器，蒸发器231和冷凝器233之间接有压缩机232、膨胀阀234，用于热能能量处理回收。
图5为一实施例的一种冷能能量处理回收装置的结构示意图。如图5所示，能量处理回收装置2包括过滤器、回热器、热交换器和冷水机组，用于进行冷能能量处理回收。
本方案中的能量处理回收装置，根据废气中能量的特点所配置的不同形式的能量回收利用装置的工艺路线和设备组成。能量回收利用装置根据生产系统产生气体的温度高低、湿度大小、气体腐蚀性大小、可回收利用价值和所在地 区气候特点，以及循环回用气体的温度、湿度、洁净度等综合因素，采用最优化的能量回收利用工艺和配套最优化的系统设备。
对于高温高湿和含有一定热量的废气(生产系统伴有加热过程，如饲料生产的各工艺单元、干燥和喷雾干燥行业、各类食品加工行业等)，其能量回收利用工艺应采用不同形式的热交换器类、或/和冷水机组、或/和热泵(或/和高温热泵)类技术、或/和磁热蒸汽发生器技术，回收的热量为热水或低压蒸汽或高温导热油。气体中含有的水分在降温换热过程中冷凝析出，排出环境外。如果循环的气体需要加热，则回收的热量可以通过回热或热交换技术设备，将循化气体加热到设定温度，使回收的热量部分再回用到生产系统中，多余的热量结合整间企业和周围环境需要综合利用。
对于夏季低于环境温度和含有一定能量(冷量)的废气(生产系统伴有空气调节过程，如丝网印刷、制鞋、皮革鞣制、表面处理等诸多行业)，其能量回收利用工艺应采用回热交换的热交换器，使循环回来的气体与抽出需要净化处理的气体进行换热交换，最大限度减少能量的排放浪费。同时配置相应的冷水机组、或/和空调机组、或/和热泵空调机组对回用的气体进行能量补充(降温)，使其满足循环回用气体的温度要求。传统的印刷废气处理如图5所示，图5为一种传统印刷行业废气处理模块结构示意图，废气处理装置对丝网印刷车间废气进行处理，在达标后进行达标排放。图7为本实施例提供的一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图，其针对高浓度有机废气进行处理，对于高浓度有机废气，选择直接冷冻回收和废弃循环处理工艺，如图7所示，具体为：
空调生产车间产生的低温(26度左右)高浓度有机废气，先经过热交换器(回冷器)与处理后循环回来的高温气体进行热量交换，回收车间排出的空调 冷气中的能量(冷量)，达不到车间空调温度时，在经过冷量交换器，将循环回风温度调节到26度左右，最大限度减少冷量的浪费；
经过冷量回收后的有机废气，直接进入冷冻回收装置，根据不同有机废气的特点，将有机组分冷冻、液化，从气态转化成液态，液态废气进入储液罐，再回到生产车间使用，或作为杂环有机成分销售给专业回收公司，降低生产成本；
回收有机成分后的废气中还有少量不凝气(或未凝气)，再进入废气循环处理装置进一步净化，废气循环处理装置工艺可以选择生物净化系统，也可以选择紫外光催化净化系统，或其他净化工艺，经过进一步净化后的气体，经过回冷气，重新回到生产车间，循环往复。
图8为一实施例的另一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图，对于低浓度没有回收价值的有机废气，选择循环处理工艺。如图8所示，具体为：
空调生产车间产生的低温(26度左右)低浓度有机废气，先经过热交换器(回冷器)与处理后循环回来的高温气体进行热量交换，回收车间排出的空调冷气中的能量(冷量)，达不到车间空调温度时，在经过冷量交换器，将循环回风温度调节到26度左右，最大限度减少冷量的浪费；
经过冷量回收后的低浓度没有回收价值的有机废气，直接进入废气循环处理装置进一步净化，废气循环处理装置工艺可以选择生物净化系统，也可以选择紫外光催化净化系统，或其他净化工艺，经过进一步净化后的气体，经过回冷气，重新回到生产车间，循环往复。
冷量交换器提供冷量的方式，可以选择冷水机组，冷水机组通过冷冻储水箱为冷量交换器提供需要的冷量，冷水机组通过冷却塔进行热量交换，实现正 常稳定的运行。
图9为一实施例中的又一种用于丝网印刷的基于零排放架构的节能减排废气处理系统的结构示意图，对于中、低浓度有一定回收价值的有机废气，选择有机废气吸附再生冷冻回收和废气循环处理工艺，如图9所示，具体为：
空调生产车间产生的低温(26度左右)低浓度有机废气，先经过热交换器(回冷器)与处理后循环回来的高温气体进行热量交换，回收车间排出的空调冷气中的能量(冷量)，达不到车间空调温度时，在经过冷量交换器，将循环回风温度调节到26度左右，最大限度减少冷量的浪费；
经过冷量回收后的有机废气，直接进入吸附浓缩装置，当吸附浓缩装置第一组吸附罐吸附饱和时，废气再进入第二组吸附罐，第一组吸附罐开始进行加热再生，热空气将吸附饱和的吸附罐中的有机成分加热，吹脱，进入冷冻回收装置，在冷冻回收装置中，根据不同有机废气的特点，将有机组分冷冻、液化，从气态转化成液态，液态废气进入储液罐，再回到生产车间使用，或作为杂环有机成分销售给专业回收公司，降低生产成本；
经过吸附罐吸附后的的气体中还有少量有机成分，再进入废气循环处理装置进一步净化，废气循环处理装置工艺可以选择生物净化系统，也可以选择紫外光催化净化系统，或其他净化工艺，经过进一步净化后的气体，经过回冷气，重新回到生产车间，循环往复。
在一个实施例中，所述节能减排废气处理系统的“零排放架构”，还包括：抽风机和检测控制单元，所述检测控制单元用于检测和控制待检测气体的成分和浓度，所述待检测气体包括所述闭路循环装置中的废气。
在一个实施例中，所述节能减排废气处理系统的“零排放架构”，还包括：系统控制单元，所述系统控制单元包括现场控制设备、远程控制设备、应用App 或云平台设备中的至少一种。系统控制单元用于对整个节能减排废气处理系统以及各个单元和节点控制。
本方案公开的节能减排废气处理系统的“零排放架构”，其包括整个空气置换型生产系统和空气置换型空间形成的闭路循环结构、废气中含有的能量处理及其回收利用系统和废气循环处理系统。空气置换型生产系统和空气置换型空间形成的闭路循环结构包含生产系统设备进出口之间连接的进出管道，进风口、排风口和应急安全排放(泄压)阀；能量处理及其回收利用系统配置有能量(热量或冷量)处理、回收和利用装置，对无回收价值的可以进行有效处理，而有回收价值、伴随着废气排放到环境中的能量进行回收并加以利用；废气循环处理系统将对环境造成污染的废气采用配置最优化的回收利用和净化技术工艺，进行极限净化，达到循环使用气体的品质要求；净化后达到循环气体要求的气体再次送回到整个系统的初始端，从而实现“废气零排放”的最终目标。
本公开的节能减排和废气处理的“零排放架构”，创造性地提出了一种全新的排放大量废气污染物和能量的、空气置换型生产系统零排放治理架构，通过“零排放架构”，对所有产生废气污染的空气置换型生产系统实施进行极限净化，使有价值的能量得到充分回收利用，而净化后的废气再次回到生产系统中，周而复始，进行能量和气体循环利用，与相关技术相比，可取消有碍景观的排气筒，浪费的能量得到最大限度的回收利用，废气进行循环处理，实现零排放，消除了对周围大气环境的污染，优化了生产布局，降低了生产成本，改善了生产环境和生态环境。环境效益，社会效益和经济效益相得益彰。
值得注意的是，上述节能减排废气处理系统装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互 区分，并不用于限制本实施例的保护范围。

Claims (10)

  1. 节能减排废气处理系统，所述系统包括：闭路循环装置、废气净化处理装置和能量处理回收装置，所述闭路循环装置设置为实现气体循环，所述废气净化处理装置设置为对所述闭路循环装置内的废气进行净化处理，所述能量处理回收装置和所述闭路循环装置以及所述废气净化处理装置相连，设置为对闭路循环装置中排气口排出的气体进行能量回收后送入所述废气净化处理装置。
  2. 根据权利要求1所述的节能减排废气处理系统，其中，所述废气净化处理装置包括预处理单元、净化处理单元和气体平衡单元，所述预处理单元和所述净化处理单元相连，所述净化处理单元和所述气体平衡单元相连，所述预处理单元设置为根据所述闭路循环装置内的废气成分、废气浓度、废气性质、回收等级、可靠性等级和经济价值等级中的至少一种，使用化学工艺和/或物理工艺对废气进行预处理；所述净化处理单元设置为对所述预处理单元处理后的气体进行进一步净化；所述气体平衡单元设置为对所述预处理单元和所述净化处理单元产生的气体进行消耗，减少的气体进行补充。
  3. 根据权利要求2所述的节能减排废气处理系统，其中，所述预处理单元使用化学工艺和/或物理工艺对废气进行预处理包括：
    所述预处理单元使用过滤除尘、吸附浓缩、加热脱附、冷冻再生、催化、氧化中的至少一种方式对废气进行预处理；和/或
    所述预处理单元使用酸碱中和、化学氧化、洗涤吸收、萃取分离和过滤分解中的至少一种方式对废气进行预处理。
  4. 根据权利要求2所述的节能减排废气处理系统，其中，所述净化处理单元设置为对所述预处理单元处理后的气体进行进一步净化包括：
    对含有有机成分的废气，采取吸附浓缩、加热脱附、冷冻回收、吸附浓缩、催化燃烧、蓄热燃烧和生物降解净化中的至少一种方式进行净化处理；
    对含有无机成分的废气，采取生物洗涤、生物过滤、酸碱洗涤和化学氧化中的至少一种方式进行净化处理。
  5. 根据权利要求2所述的节能减排废气处理系统，其中，所述气体平衡单元包括：气体消耗装置、气体补充装置和气体品质保证装置，所述气体消耗装置设置为对处理过程中增加的气体进行消除，所述气体补充装置设置为对处理过程中减少的气体进行补充，所述气体品质保证装置设置为对处理后的气体进行温度、湿度和洁净度的调节。
  6. 根据权利要求1所述的节能减排废气处理系统，其中，所述闭路循环装置包括进气口、排气口和安全排放阀。
  7. 根据权利要求1所述的节能减排废气处理系统，其中，所述能量处理回收装置设置为根据排气口排出的气体特点属性，选取对应的工艺路线和设备组成进行能量回收，所述气体特点属性包括气体的温度值、湿度值、气体腐蚀等级、可回收利用等级、所在地区气候等级，以及对应的循环回用气体的温度值、湿度值、洁净度等级中的至少一种。
  8. 根据权利要求7所述的节能减排废气处理系统，其中，所述能量处理回收装置设置为：
    采用热交换器、冷水机组、热泵和磁热蒸汽发生器中的任意一种或多种设备进行能量回收，其中回收的能量包括热水、低压蒸汽或高温导热油中的任意一种或多种物质对应的能量。
  9. 根据权利要求1-8中任一项所述的节能减排废气处理系统，其中，所述节能减排废气处理系统还包括：抽风机和检测控制单元，所述检测控制单元设置为检测和控制待检测气体的成分和浓度，所述待检测气体包括所述闭路循环装置中的废气。
  10. 根据权利要求1-8中任一项所述的节能减排废气处理系统，其中，所述节能减排废气处理系统还包括：系统控制单元，所述系统控制单元包括现场控制设备、远程控制设备、应用App或云平台设备中的至少一种。
PCT/CN2019/129845 2019-11-20 2019-12-30 节能减排废气处理系统 WO2021098019A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911139047.5A CN110898642A (zh) 2019-11-20 2019-11-20 节能减排废气处理系统
CN201911139047.5 2019-11-20

Publications (1)

Publication Number Publication Date
WO2021098019A1 true WO2021098019A1 (zh) 2021-05-27

Family

ID=69818038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/129845 WO2021098019A1 (zh) 2019-11-20 2019-12-30 节能减排废气处理系统

Country Status (2)

Country Link
CN (1) CN110898642A (zh)
WO (1) WO2021098019A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116036816A (zh) * 2023-02-21 2023-05-02 播梦碳科技有限公司 一种环保节能减排系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057049A1 (en) * 1997-06-13 1998-12-17 Smith Engineering Company Pollutant reduction catalyst in thermal oxidizer
US20100187128A1 (en) * 2007-04-12 2010-07-29 Joachim Neubert Method and device for treating liquids, using an electrolytic stage
CN103272454A (zh) * 2013-06-05 2013-09-04 中节能天辰(北京)环保科技有限公司 有机废气治理方法及装置
CN105928259A (zh) * 2016-04-21 2016-09-07 武汉旭日华科技发展有限公司 涂布行业中有机废气的处理系统及方法
CN107088358A (zh) * 2016-02-18 2017-08-25 杭州科瑞特环境技术有限公司 一种污水处理中曝气池恶臭废气循环净化系统及其工艺
CN207871795U (zh) * 2018-01-17 2018-09-18 山东华韵新材料有限公司 一种废气治理系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101284201A (zh) * 2008-06-02 2008-10-15 北京云辰天环保科技有限公司 一种无二次污染的有机废气处理方法
CA2709722A1 (en) * 2010-07-15 2012-01-15 Alakh Prasad Integrated biogas cleaning a system to remove water, siloxanes, sulfur, oxygen, chlorides, and volatile organic compounds
CN108079738B (zh) * 2018-01-03 2020-01-10 王理 应用于喷漆烤漆工艺的节能环保循环式废气处理方法
CN109939552A (zh) * 2019-05-06 2019-06-28 广州鹏灏节能环保科技有限公司 一种废气循环处理系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057049A1 (en) * 1997-06-13 1998-12-17 Smith Engineering Company Pollutant reduction catalyst in thermal oxidizer
US20100187128A1 (en) * 2007-04-12 2010-07-29 Joachim Neubert Method and device for treating liquids, using an electrolytic stage
CN103272454A (zh) * 2013-06-05 2013-09-04 中节能天辰(北京)环保科技有限公司 有机废气治理方法及装置
CN107088358A (zh) * 2016-02-18 2017-08-25 杭州科瑞特环境技术有限公司 一种污水处理中曝气池恶臭废气循环净化系统及其工艺
CN105928259A (zh) * 2016-04-21 2016-09-07 武汉旭日华科技发展有限公司 涂布行业中有机废气的处理系统及方法
CN207871795U (zh) * 2018-01-17 2018-09-18 山东华韵新材料有限公司 一种废气治理系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116036816A (zh) * 2023-02-21 2023-05-02 播梦碳科技有限公司 一种环保节能减排系统

Also Published As

Publication number Publication date
CN110898642A (zh) 2020-03-24

Similar Documents

Publication Publication Date Title
Al-Alili et al. Review of solar thermal air conditioning technologies
CN102489113B (zh) 一种回收有机废气中有机溶剂的方法
US10967323B2 (en) Exhaust gas purifying and heat recovering system and method for sludge treatment
CN205760441U (zh) 一种分散吸附、集中脱附再生的有机废气净化系统
CN110917814A (zh) 印刷行业和排放VOCs废气的其他行业节能减排废气处理系统
CN103265158B (zh) 一种太阳能-热泵耦合溶液除湿干燥污泥的方法
CN103463932B (zh) 低浓度大风量有机废气处理回收方法及装置
CN114279254B (zh) 一种烟气余热利用及二氧化碳捕集回收工艺
CN210495768U (zh) 压缩冷凝膜分离技术实现湿法锂电隔膜二氯甲烷回收装置
KR101577863B1 (ko) 흡수식 냉동기를 이용한 대용량유닛화 가능 벨트식 슬러지 건조장치
CN104801148A (zh) 一种含挥发性有机物工业废气环保治理回收方法及装置
CN101798607A (zh) 高炉冲渣水余热回收系统
CN111408200A (zh) 一种餐厨垃圾生化处理设备中使用的废气处理装置
WO2021098019A1 (zh) 节能减排废气处理系统
CN213421895U (zh) 一种废水浓缩余热回用装置
CN202216343U (zh) 船用两级转轮除湿空调系统
CN110526318B (zh) 一种烟气消白耦合海水淡化的能量综合利用方法及系统
CN101240977A (zh) 自然能源双路循环气流干燥系统
CN202393293U (zh) 一种降低空气含湿量来提高冷却塔冷却效果的装置
Wang et al. Brief introduction of dehumidification technology and research progress
CN102519299B (zh) 一种降低空气含湿量来提高冷却塔冷却效果的系统
CN204522681U (zh) 一种含挥发性有机物工业废气环保治理回收装置
CN102767872A (zh) 余热回收利用空调系统
KR19980064935A (ko) 리싸이클 공조 시스템을 이용한 유기성 폐기물 처리방법
CN204891576U (zh) 二硫化碳废气脱附处理装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19952974

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19952974

Country of ref document: EP

Kind code of ref document: A1