CN117146288A - System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas - Google Patents
System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas Download PDFInfo
- Publication number
- CN117146288A CN117146288A CN202311057651.XA CN202311057651A CN117146288A CN 117146288 A CN117146288 A CN 117146288A CN 202311057651 A CN202311057651 A CN 202311057651A CN 117146288 A CN117146288 A CN 117146288A
- Authority
- CN
- China
- Prior art keywords
- waste gas
- combustion
- vocs
- module
- safety
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000002912 waste gas Substances 0.000 title claims abstract description 154
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 80
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 75
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 56
- 239000001301 oxygen Substances 0.000 claims abstract description 56
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims description 65
- 238000012544 monitoring process Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000012806 monitoring device Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 9
- 239000003546 flue gas Substances 0.000 claims 9
- 238000006392 deoxygenation reaction Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005496 tempering Methods 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a high-concentration VOCs waste gas combustion safety and sufficiency ensuring system, which consists of a waste gas compression storage module, a waste gas deoxidizing module, a waste gas safety and emergency emptying module, a combustion proportioning module and a linkage control system; the arrangement of the waste gas compression storage module ensures that the high-concentration VOCs waste gas with larger flow change can be stably conveyed into the combustion system; the deoxidizing module and the waste gas safety and emergency emptying module are arranged to ensure that the high-concentration VOCs waste gas entering the waste gas combustion device does not contain oxygen, so that the waste gas is always in an intrinsically safe state, and the explosion and tempering risks of the waste gas in a conveying system are avoided; the combustion proportioning module is arranged, so that the combustion air flow conveyed by the fan and the combustible content in the waste gas reach proper proportions, the combustion air flow and the combustible content can be stably combusted, and VOCs in the waste gas are fully oxidized to generate water and carbon dioxide to be discharged.
Description
Technical Field
The invention belongs to the field of waste gas treatment, and particularly relates to a system for guaranteeing the safety and sufficiency of combustion treatment of high-concentration VOCs waste gas.
Background
In the industries of petrochemical industry, chemical industry, materials, electronics and the like, a large amount of volatile organic solvents are needed, the solvents volatilize high-concentration organic waste gas, hereinafter referred to as high-concentration VOCs waste gas, the gas is difficult to treat and reach the standard for emission by conventional methods such as adsorption, absorption and biology, in recent years, enterprises mostly adopt a combustion method to treat and decompose the VOCs gas into water and carbon dioxide for emission, the method is efficient and thorough and has low energy consumption, but the concentration of the high-concentration VOCs waste gas is mostly in the explosion limit range, belongs to flammable and explosive dangerous gas, and is extremely easy to generate explosion accidents in the combustion treatment process, thereby bringing great hidden danger to the life and property safety of staff and enterprises.
In order to ensure the safety of combustion treatment, more and more enterprises set inert gas protection in a solvent storage device, so that the high-concentration VOCs waste gas volatilized from the solvent does not theoretically contain oxygen, but partial oxygen is often entrained in the high-concentration VOCs waste gas volatilized from the solvent storage device due to the defects of design construction or management, thereby leading to the safety risk of explosion generated in the process of inputting the waste gas into the combustion device, and being incapable of achieving intrinsic safety.
On the other hand, along with the change of weather conditions such as enterprise solvent service condition and temperature, the high-concentration VOCs waste gas often contains complicated and changeable components, the oxygen ratio that different VOCs types are required for complete combustion is different, the existing ratio technology of combustion treatment is mostly rough simple regulation, therefore the phenomenon of combustion air ratio imbalance appears often when entering into the combustion device for combustion treatment, when oxygen supply in the combustion air is insufficient to match the required oxidation of the high-concentration VOCs waste gas, black smoke and a large amount of incomplete combustion pollutants appear, the emission does not reach the standard, the environment is polluted, if the excessive combustion air is simply introduced, the concentration of combustible matters is too low to burn, and the VOCs waste gas directly escapes to the outside. In addition, the change of the flow of the high-concentration VOCs waste gas also brings great challenges to combustion treatment, and the fluctuation of the flow also often leads to the imbalance of the ratio of combustion air to waste gas, thereby causing the phenomenon of substandard treatment.
Disclosure of Invention
The invention aims to provide a security and combustion sufficiency guaranteeing system for high-concentration VOCs waste gas combustion treatment, which is used for guaranteeing the safe and stable operation of waste gas combustion treatment equipment, avoiding the risk of explosion, ensuring the proper ratio of waste gas and combustion air, enabling the combustion to be sufficient, not generating secondary harmful substances in the combustion, and enabling the tail gas to reach the emission standard.
The technical solution for realizing the purpose of the invention is as follows:
a system for ensuring the safety and sufficiency of combustion management of highly concentrated VOCs waste gas, comprising:
the waste gas compression storage module is used for being connected to the VOCs waste gas discharge port so as to store and compress the VOCs waste gas, and the VOCs waste gas is decompressed and released when the concentration of the VOCs waste gas reaches a set pressure;
the waste gas deoxidizing module is used for detecting the oxygen concentration in the VOCs waste gas released by the waste gas compression storage module, and is directly connected to the waste gas safety and emergency emptying module when the oxygen concentration does not reach the dangerous concentration set value; when the oxygen concentration reaches a dangerous concentration set value, deoxidizing oxygen in the VOCs waste gas;
the exhaust gas safety and emergency emptying module is used for further detecting the oxygen concentration in the VOCs exhaust gas released by the exhaust gas deoxidizing module, entering a subsequent combustion proportioning module for normal combustion if the oxygen concentration reaches a safe value range, and carrying out emergency emptying on the VOCs exhaust gas if the oxygen concentration still exceeds the safe value range;
the combustion proportioning module is used for introducing combustion air, detecting the flow and the concentration of the VOCs waste gas released by the waste gas safety and emergency emptying module, and adjusting the proportion of the flow of the combustion air and the VOCs waste gas according to the flow and the concentration of the entering VOCs waste gas; when the pressure of the waste gas compression storage module is higher than a set value, the flow rate of the combustion air is regulated.
Compared with the prior art, the invention has the remarkable advantages that:
(1) Through the setting of deoxidization module and waste gas safety and urgent blowdown module, ensure that the high-concentration VOCs waste gas that gets into waste gas burner does not contain oxygen, make waste gas be in intrinsically safe state all the time, avoided the explosion of waste gas in conveying system, tempering risk, improved waste gas combustion treatment system's security greatly.
(2) Through the automatic regulation function of the combustion proportioning module, the combustion air flow conveyed by the fan and the combustible content in the waste gas reach proper proportions, the combustion air flow and the combustible content in the waste gas can be stably combusted, VOCs in the waste gas are fully oxidized to generate water and carbon dioxide emission, incomplete combustion components and secondary pollution are avoided, and the emission is stable and reaches the standard.
(3) Through the setting of waste gas compression storage module, make the great high concentration VOCs waste gas of flow change can be stable carry in the combustion system to guarantee the stability of burning, make the burning more abundant.
Drawings
Fig. 1 is a schematic diagram of a system.
Detailed Description
The invention is further described with reference to the drawings and specific embodiments.
Referring to fig. 1, the high-concentration VOCs exhaust gas combustion safety and sufficiency ensuring system of the present embodiment is composed of an exhaust gas compression storage module, an exhaust gas deoxidizing module, an exhaust gas safety and emergency emptying module, a combustion proportioning module, and a linkage control system;
the compression storage module comprises an on-line pressure monitoring instrument 1, a high-pressure conveying fan 2, a check valve 4, an exhaust gas compression storage tank 5, a compression storage tank pressure monitoring instrument 3, a safety relief valve 6, a high-pressure exhaust gas shut-off valve 7 and an exhaust gas relief valve 9;
the on-line pressure monitoring instrument 1, the high-pressure conveying fan 2, the check valve 4 and the waste gas compression storage tank 5 are sequentially connected, and the waste gas compression storage tank 5 is provided with the compression storage tank pressure monitoring instrument 3 and the safety relief valve 6; the gas outlet of the waste gas compression storage tank 5 is connected with a high-pressure waste gas shut-off valve 7, and a waste gas pressure reducing valve 9 is connected in sequence.
The waste gas deoxidizing module comprises a first oxygen content real-time monitor 10, an oxygen-free gas path cut-off valve 12, an oxygen-containing gas path cut-off valve 8 and a deoxidizing device 14;
the waste gas pressure reducing valve 9 is divided into two paths, and is respectively connected with the oxygen-free path cut-off valve 12 and the oxygen-containing path cut-off valve 8, the oxygen-containing path cut-off valve 8 is connected with the deaerating device 14, and the air outlet of the deaerating device 14 is connected with the waste gas safety and emergency emptying module after converging with the air outlet pipeline of the oxygen-free path cut-off valve 12. The deaerator 14 is provided with a deaerator temperature detector 13.
The waste gas safety and emergency emptying module comprises a second oxygen content real-time monitor 11 and an emergency emptying cut-off valve 18; the combustion proportioning module comprises an online pressure monitoring instrument 15, an exhaust gas high-precision regulating valve 16, an exhaust gas online flow monitoring instrument 17, an online VOCs concentration real-time monitoring device 22, a combustion-supporting fan 19, a combustion-supporting air high-precision regulating valve 20, a combustion-supporting air flow online monitoring instrument 21, an exhaust gas flame arrester 23, a pilot torch 24 and a high-efficiency exhaust gas combustion head 25.
The second oxygen content real-time monitor 11, the online pressure monitor 15, the waste gas high-precision regulating valve 16, the waste gas online flow monitor 17, the online VOCs concentration real-time monitoring device 22 and the waste gas flame arrester 23 are connected in sequence and then connected into the high-efficiency waste gas combustion head 25, and the Changming torch 24 is used for igniting waste gas exhausted by the high-efficiency waste gas combustion head 25. An emergency emptying cut-off valve 18 is arranged on a pipeline between the second oxygen content real-time monitor 11 and the online pressure monitor 15.
The combustion-supporting fan 19, the combustion-supporting air high-precision regulating valve 20 and the combustion-supporting air flow on-line monitoring instrument 21 are connected in sequence and then connected into the high-efficiency waste gas combustion head 25.
The inlet of the whole system is connected with the exhaust outlet of the high-concentration VOCs, and the operation is carried out according to the following principle.
Before the system works, the pilot torch 24 is ignited and works in advance and keeps a continuous running state, the waste gas combustion-supporting fan 19 is started, the combustion-supporting air high-precision regulating valve 20 is opened to a working opening degree to purge the hearth, the purging is carried out for a certain time to ensure that no combustible gas is accumulated in the hearth, and after the purging is finished, high-concentration VOCs waste gas starts to be introduced into the system;
the high-pressure conveying fan 2 automatically adjusts the frequency to operate according to the pressure value fed back by the front-end on-line pressure monitoring instrument 1, ensures that the pressure value at the front end of the fan is kept in a set negative pressure state, enables waste gas which is intermittently generated at the upstream and has fluctuation in flow rate to be stably sucked into the waste gas compression storage tank 5 at the rear end of the fan, when the pressure of the waste gas in the waste gas compression storage tank 5 reaches a set value, the high-pressure waste gas cut-off valve 7 at the rear end of the storage tank is opened, the pressure of the waste gas is reduced to the working pressure through the pressure reducing valve 9, the oxygen content in the waste gas is detected through the first oxygen content real-time monitor 10, the control system judges according to the linkage 2, if the waste gas does not contain or contains a trace amount of oxygen, the oxygen-free gas cut-off valve 12 is opened, the waste gas directly enters the safety and emergency emptying module and is detected through the second oxygen content real-time monitor 11 to confirm that the oxygen content is within a safety value again (if the waste gas exceeds the safety value, the emergency emptying cut-off valve 18 is opened), at this time, the high-precision regulating valve 16 is opened, the exhaust gas flow monitor 17 behind the regulating valve monitors the exhaust gas flow in real time, the VOCs concentration on-line monitoring device 22 monitors the concentration of the exhaust gas in real time, according to the concentration and flow of the exhaust gas entering the high-efficiency exhaust gas combustion head 25, under the real-time monitoring of the combustion-supporting air flow on-line monitoring instrument 21, the control system automatically adjusts the operating frequency of the exhaust gas combustion-supporting fan 19 and the size of the combustion-supporting regulating valve 20 according to the linkage 4, so that the combustion-supporting air flow conveyed by the fan and the combustible in the exhaust gas reach proper proportion, the two are stably combusted in the high-efficiency exhaust gas combustion head 25, the proportion of the oxygen in the combustion-supporting air and the VOCs in the exhaust gas is stabilized at 110% -150% of the chemical oxygen demand of the oxidation reaction of the exhaust gas, at this time, the VOCs in the exhaust gas is fully combusted, and water and carbon dioxide emission are generated, no incomplete combustion component and secondary pollution;
if the oxygen content v/v% in the exhaust gas is detected to exceed the dangerous value by the first oxygen content real-time monitor 10 after the exhaust gas is discharged from the compression storage tank 5, the control system opens the oxygen-containing gas shut-off valve 8 according to the linkage 2, the oxygen-free gas shut-off valve 12 is closed, the exhaust gas enters the deoxidizing device 14 for deoxidization, the deoxidization enters the exhaust gas safety and emergency emptying module after the deoxidization is finished, the second oxygen content real-time monitor 11 detects the oxygen content v/v% in the exhaust gas, the subsequent combustion proportioning module is normally combusted if the oxygen content reaches the safe value range, the control system opens the emergency emptying shut-off valve 18 according to the linkage 3 if the oxygen content still exceeds the safe value range, the exhaust gas high-precision regulating valve 16 is closed to 0%, the exhaust gas is urgently emptied, and meanwhile, the system alarms, and the deoxidizer needs to be replaced to ensure the oxygen content removal effect. The module ensures that the high-concentration VOCs waste gas conveyed by the system is always in an intrinsically safe state, and avoids the explosion and tempering risks of the waste gas in the conveying system.
After the waste gas storage pressure (detected by a pressure monitoring instrument of the compressed storage tank) in the waste gas compressed storage tank reaches a set high pressure value (larger than a first high pressure set value H1), the system can decompress and release waste gas in the tank, and release of the waste gas is stopped when the pressure in the tank is lower than a certain value (a low pressure set value L), so that flow fluctuation of high-concentration VOCs waste gas at the inlet of the system can not interfere with a subsequent system of the compressed storage tank 5, and a combustion proportioning module of the system can operate under proper pressure and flow conditions, so that the sufficiency of combustion is ensured.
When the pressure value of the waste gas compression storage tank 5 is too high (greater than a second high-pressure set value H2, H2 is more than H1), the linkage 1 is triggered, at the moment, the waste gas high-precision regulating valve 16 is automatically opened to ensure that the pressure in the storage tank is timely removed, and meanwhile, the control system regulates (regulates) the combustion-supporting fan 19 and the combustion-supporting regulating valve 20 according to the linkage 4 to ensure the sufficiency of combustion.
The temperature detector is also involved in alarming and interlocking, so that high-temperature damage caused by severe deoxidization reaction is prevented. When the temperature detector of the deoxidizing device shows that the temperature exceeds the warning value, the deoxidizing reaction is severe, the heat release is excessive, at the moment, the oxygen gas path cut-off valve 8 is closed, the oxygen-free gas path cut-off valve 12 is opened, the waste gas directly enters the safety and emergency emptying module and is detected by the second oxygen content real-time monitor 11 to confirm the oxygen content value of the waste gas again, if the oxygen content value exceeds the standard, the control system opens the emergency emptying cut-off valve 18 according to the linkage 3, the waste gas high-precision regulating valve 16 is closed to 0%, the waste gas is suddenly emptied, and meanwhile, the system alarms.
When the online pressure monitoring instrument 15 exceeds the normal value range, the exhaust gas pressure reducing valve 9 possibly fails, the exhaust gas pressure cannot be regulated to the working pressure range, the system alarms at the moment, the exhaust gas is exhausted urgently, and maintenance personnel are required to troubleshoot and repair the system.
In certain unpredictable extreme or fault conditions, the provision of a long open flame may prevent the disadvantage of unstable or extinguished flames in the high efficiency exhaust gas burner 25 when large fluctuations in the concentration and flow of exhaust gas entering the high efficiency exhaust gas burner 25 occur, while the exhaust gas flame arrestor 23 may prevent the condition of flashback of the burner flame to the foreline.
Claims (7)
1. A system for ensuring the safety and sufficiency of combustion management of highly concentrated VOCs waste gases, comprising:
the waste gas compression storage module is used for being connected to the VOCs waste gas discharge port so as to store and compress the VOCs waste gas, and the VOCs waste gas is decompressed and released when the concentration of the VOCs waste gas reaches a set pressure;
the waste gas deoxidizing module is used for detecting the oxygen concentration in the VOCs waste gas released by the waste gas compression storage module, and is directly connected to the waste gas safety and emergency emptying module when the oxygen concentration does not reach the dangerous concentration set value; when the oxygen concentration reaches a dangerous concentration set value, deoxidizing oxygen in the VOCs waste gas;
the exhaust gas safety and emergency emptying module is used for further detecting the oxygen concentration in the VOCs exhaust gas released by the exhaust gas deoxidizing module, entering a subsequent combustion proportioning module for normal combustion if the oxygen concentration reaches a safe value range, and carrying out emergency emptying on the VOCs exhaust gas if the oxygen concentration still exceeds the safe value range;
the combustion proportioning module is used for introducing combustion air, detecting the flow and the concentration of the VOCs waste gas released by the waste gas safety and emergency emptying module, and adjusting the proportion of the flow of the combustion air and the VOCs waste gas according to the flow and the concentration of the entering VOCs waste gas; when the pressure of the waste gas compression storage module is higher than a set value, the flow rates of the waste gas and the combustion air are regulated.
2. The system for ensuring safety and sufficiency in combustion management of highly concentrated VOCs flue gas of claim 1, wherein said flue gas compression storage module comprises:
the on-line pressure monitoring instrument is used for detecting the pressure of the VOCs waste gas so as to control the operating frequency of the conveying fan;
the conveying fan is used for conveying the VOCs waste gas to the waste gas compression storage tank;
the waste gas compression storage tank is used for storing VOCs waste gas;
the high-pressure waste gas shut-off valve is used for opening or closing the air outlet of the waste gas compression storage tank;
the pressure reducing valve is used for reducing the pressure of the VOCs waste gas discharged from the waste gas compression storage tank to the working pressure;
the pressure monitoring instrument of the compressed storage tank is used for detecting the pressure of the waste gas compressed storage tank, and when the waste gas storage pressure in the waste gas compressed storage tank reaches a first high-pressure set value, the high-pressure waste gas cut-off valve is opened; closing the high-pressure exhaust gas shut-off valve when the exhaust gas storage pressure in the exhaust gas compression tank is below a certain value; when the pressure of the waste gas compression storage tank reaches a second high-pressure set value, the flow rates of the waste gas and the combustion air are regulated up through the combustion proportioning module.
3. The system for ensuring safety and sufficiency in combustion management of highly concentrated VOCs flue gas of claim 1, wherein said flue gas deoxygenation module comprises:
the first oxygen content real-time monitor is used for detecting the oxygen concentration in the VOCs waste gas released by the waste gas compression storage module;
the oxygen-removing device is connected with the oxygen-removing device, when the oxygen concentration reaches a dangerous concentration set value, the oxygen-removing device is opened and is used for deoxidizing oxygen in the VOCs waste gas and connecting the treated VOCs waste gas into the waste gas safety and emergency emptying module;
and when the oxygen concentration does not reach the dangerous concentration set value, the oxygen-free path cut-off valve is opened to connect the VOCs waste gas into the waste gas safety and emergency emptying module.
4. The system for ensuring the safety and sufficiency of combustion management of highly concentrated VOCs flue gas of claim 1, wherein said flue gas safety and emergency evacuation module comprises:
the second oxygen content real-time monitor is used for further detecting the oxygen concentration in the VOCs waste gas released by the waste gas deoxidizing module;
and the emergency emptying cut-off valve is used for carrying out emergency emptying on the VOCs waste gas when the oxygen concentration in the VOCs waste gas detected further exceeds the safety value range.
5. The system for ensuring safety and sufficiency in combustion management of highly enriched VOCs flue gas of claim 1, wherein said combustion proportioning module comprises:
the waste gas online flow monitoring instrument is used for monitoring the flow of VOCs waste gas in real time;
the on-line VOCs concentration real-time monitoring device is used for monitoring the concentration of the waste gas entering the waste gas combustion head in real time;
an exhaust gas precision adjusting valve for adjusting the flow rate of exhaust gas entering the exhaust gas combustion head;
the combustion-supporting fan is used for inputting combustion-supporting air into the waste gas combustion head;
the on-line monitoring instrument for the flow of the combustion air is used for monitoring the flow of the combustion air entering the waste gas combustion head in real time;
the combustion-supporting air precision adjusting valve is used for adjusting the flow of combustion-supporting air entering the combustion of the waste gas;
the pilot torch is used for performing advanced ignition work on the waste gas of the waste gas combustion head and keeping a continuous running state;
the waste gas flame arrester is used for preventing backfire of the burner flame.
6. The system for ensuring the safety and sufficiency of the combustion management of highly concentrated VOCs flue gas according to claim 1, wherein a safety relief valve is provided on the flue gas compression storage tank.
7. The system for ensuring the safety and sufficiency of the combustion treatment of the high-concentration VOCs waste gas according to claim 4, wherein the deaerating device is provided with a temperature detector, and when the temperature detected by the temperature detector exceeds a set warning value, an oxygen-containing gas shut-off valve is closed, an oxygen-free gas shut-off valve is opened, and the waste gas directly enters the safety and emergency emptying module; and if the oxygen concentration in the VOCs waste gas further detected by the second oxygen content real-time monitor exceeds the safety value range, opening the emergency emptying cut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311057651.XA CN117146288A (en) | 2023-08-22 | 2023-08-22 | System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311057651.XA CN117146288A (en) | 2023-08-22 | 2023-08-22 | System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117146288A true CN117146288A (en) | 2023-12-01 |
Family
ID=88911156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311057651.XA Pending CN117146288A (en) | 2023-08-22 | 2023-08-22 | System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117146288A (en) |
-
2023
- 2023-08-22 CN CN202311057651.XA patent/CN117146288A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206868010U (en) | A kind of safety device for VOCs Treatment process | |
| CN110160065B (en) | Method for system for safely collecting and discharging low-pressure gas from storage tank VOCs | |
| CN108926974A (en) | A kind of security protection technique for VOCs Treatment process | |
| CN104534508B (en) | A kind of biogas safe combustion controls device and control method | |
| CN216281438U (en) | Dimethyl ether flash distillation waste gas oxidation treatment device | |
| CN111470477B (en) | Sulfur recovery Claus furnace oxygen-enriched air blast management system and method | |
| CN103335319A (en) | FCS torch monitoring and management system | |
| CN105823065A (en) | Treatment device for flammable and explosive high-concentration multi-component organic waste gas | |
| CN106765210A (en) | A kind of incineration treatment method and device of refinery's organic exhaust gas | |
| CN113289451B (en) | Treatment and waste heat utilization system and treatment and waste heat utilization method for tail gas of carbon-carbon composite material preparation process | |
| CN208671025U (en) | A kind of industrial waste gas burning processing system | |
| CN117146288A (en) | System for guaranteeing combustion treatment safety and sufficiency of high-concentration VOCs waste gas | |
| SG175163A1 (en) | Apparatus for producing higher-purity carbon dioxide for recovering carbon dioxide from waste gas containing flammable impurities, and method for recovering higher-purity carbon dioxide using same | |
| CN216171156U (en) | Energy-concerving and environment-protective emergent exhaust treatment device of RTO | |
| CN111457404A (en) | Safe type organic waste gas heat accumulation catalytic oxidation device | |
| CN113982532B (en) | Offshore platform flare gas recovery system and method | |
| CN203628681U (en) | Incineration disposing system of organic exhaust boiler via heating power | |
| CN206637633U (en) | Oil gas treating device based on low emission CEB | |
| CN110155551A (en) | Storage tank VOCs safe collection method | |
| CN110143380B (en) | Safety device of open fire equipment for discharging VOCs (volatile organic compounds) in storage tank | |
| CN111059551A (en) | Flare gas and air mixed oxidation system recovered in oil refining chemical natural gas industry | |
| CN220688794U (en) | Different source VOCs treatment system | |
| CN208475341U (en) | A kind of three-stage organic nitrogen incinerator for waste liquid | |
| CN215489708U (en) | High-efficient combustion system of pier oil gas | |
| CN110143377B (en) | Safety control method for storage tank VOCs (volatile organic compounds) discharge open fire equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |