CN217899897U - Treatment system for volatile organic compounds - Google Patents
Treatment system for volatile organic compounds Download PDFInfo
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- CN217899897U CN217899897U CN202221360786.4U CN202221360786U CN217899897U CN 217899897 U CN217899897 U CN 217899897U CN 202221360786 U CN202221360786 U CN 202221360786U CN 217899897 U CN217899897 U CN 217899897U
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- 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
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Abstract
The application discloses a treatment system for volatile organic compounds, including being responsible for, be responsible for from last to having set gradually first branch pipe, second branch pipe, third branch pipe and fourth branch pipe down, first leg joint has rainwater production effluent water sump, and second branch pipe intercommunication has alkali lye storage tank and waste liquid alkali groove, and third branch pipe intercommunication has the ebullated bed, and is provided with the cooler on the third branch pipe, and fourth branch pipe connection has the red oil trench, is responsible for one end and passes through the air trenchThe pipeline is connected with an air fan, and an air outlet of the air fan is communicated with the CO incinerator. This application, through setting up four branch pipes, the volatile organic compounds gas that produces rainwater production effluent water sump, alkali lye storage tank, waste liquid alkali vat, ebullated bed and red oil trench is introduced CO and is burnt in burning furnace, generates CO, CO 2 、H 2 And O, zero discharge of VOCs can be realized, and environmental pollution is avoided.
Description
Technical Field
The application relates to the field of treatment of volatile organic compounds, in particular to a treatment system for volatile organic compounds.
Background
Volatile organic compounds are generally classified into non-methane hydrocarbons, oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds, and the like. The volatile organic compounds participate in the formation of ozone and secondary aerosol in the atmospheric environment, and have important influence on regional atmospheric ozone pollution and PM2.5 pollution. Most volatile organic compounds have unpleasant special odor, toxicity, irritation, teratogenicity and carcinogenicity, and especially benzene, toluene, formaldehyde and the like cause great harm to human health. The volatile organic compounds are mainly from the processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and the like. In the prior art, volatile organic compounds are inconvenient to treat, and environmental pollution is easily caused, so a treatment system for the volatile organic compounds is needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The application provides a treatment system for volatile organic compounds, has solved the inconvenient problem of volatile organic compounds improvement among the prior art.
The application provides a treatment system for volatile organic compounds, including being responsible for, be responsible for from last to having set gradually first branch pipe, second branch pipe, third branch pipe and fourth branch pipe down, first branch pipe is kept away from the one end of being responsible for has rainwater production sewage pond through first tail gas collection pipe connection, the second branch pipe is kept away from the one end intercommunication of being responsible for has alkali lye storage tank and waste liquid alkali tank, the one end intercommunication that the person in charge was kept away from to the third branch pipe has the ebullated bed, be provided with on the third branch pipe and be located the ebullated bed with cooler between the person in charge, the fourth branch pipe is kept away from the one end of being responsible for has the red oil trench through second tail gas collection pipe connection, the person in charge keeps away from the one end of first branch pipe has air fan through air conduit connection, air fan's gas outlet intercommunication has CO to burn burning furnace.
This application, be responsible for through setting up, and be responsible for and be connected first branch pipe, the second branch pipe, third branch pipe and fourth branch pipe, with first branch pipe, the second branch pipe, third branch pipe and fourth branch pipe respectively with rainwater production effluent water sump, alkali lye storage tank, waste liquid alkali trough, the ebullated bed, the red oil trench intercommunication, with rainwater production effluent water sump, alkali lye storage tank, waste liquid alkali trough, the ebullated bed, volatile organic compounds gas that red oil trench department produced draws in the main pipe, then it burns to introduce CO through air blower through air conduit and burn burning furnace, VOCs after burning, volatile organic compounds gas turns into CO promptly, CO 2 、H 2 O, and the like, without a VOCs discharge port, realizing zero discharge of VOCs due to the temperature of discharged gas of the fluidized bedThe degree is higher, so a cooler is additionally arranged after the boiling bed to cool the gas discharged from the boiling bed.
Furthermore, the top of the rainwater production sewage pool is sealed, and four first tail gas collecting pipelines are arranged between the rainwater production sewage pool and the first branch pipes. Through four first tail gas collecting pipelines that set up, be convenient for concentrate and collect the gas in the rainwater production sewage pond.
Furthermore, the top of the red oil trench is sealed, and three second tail gas collecting pipelines are arranged between the red oil trench and the fourth branch pipe. Through the three second tail gas collecting pipe way that sets up, be convenient for concentrate the collection to the gas of red oil trench combustion gas.
Furthermore, pipeline dehumidifiers are arranged at the pipeline openings of the first tail gas collecting pipeline and the second tail gas collecting pipeline. Because all can produce steam in rainwater production effluent water sump and red oil trench, can get rid of the steam in first tail gas collecting tube and the second tail gas collecting tube through the pipeline dehumidifier.
Furthermore, the position of the main pipe close to the air pipeline is also sequentially provided with a flame arrester, an explosion venting valve and an emergency cut-off valve. The flame arrester can avoid the phenomenon of pipeline tempering in the process of burning combustible gas by the CO incinerator. The setting of emergency cutoff valve can avoid when the system accident condition appears, will be responsible for and the CO burns burning furnace cutting off to, after the pipeline cuts off, can let out the gas in the pipeline through letting out the valve of exploding.
According to the technical scheme, the treatment system for the volatile organic compounds, provided by the application, the volatile organic compounds generated by the rainwater production sewage tank are introduced into the main pipe through the first tail gas collecting pipeline and the first branch pipe, and then are introduced into the CO incinerator for combustion through the air fan and the air pipeline; volatile organic compounds generated by the alkali liquor storage tank and the waste liquid alkali tank are introduced into the main pipe through the second branch pipe and then introduced into the CO incinerator for combustion through the air fan and the air pipeline; volatile organic compounds generated by the fluidized bed are introduced into the main pipe through the third branch pipe and then introduced into the CO incinerator for combustion through the air fan and the air pipeline; production of red oil in the trenchThe volatile organic compounds are introduced into the main pipe through a fourth branch pipe and then introduced into the CO incinerator for combustion through an air fan and an air pipeline; the volatile organic gas after incineration can be converted into CO and CO 2 、H 2 O, and the like, and a volatile organic compound-free gas outlet, can realize the zero discharge of the volatile organic compound gas of the whole system, and can cool the gas discharged from the boiling bed through a cooler due to the higher temperature of the gas discharged from the boiling bed.
The beneficial effect of this application is as follows:
1. through the arrangement of the first branch pipe, the second branch pipe, the third branch pipe, the fourth branch pipe and the main pipe, corresponding volatile organic gas can be introduced into the main pipe in four ways, and then introduced into the CO incinerator for combustion through an air pipeline, the system continuously and stably operates without volatile organic gas discharge, so that zero emission of volatile organic gas (VOCs) is realized, and the emission standard of petroleum refining industry pollutant discharge Standard (GB 315702015) is reached.
2. The problem of on-site peculiar smell is solved, the regional environment is effectively improved, and the environmental pollution is avoided.
3. The unorganized discharge of VOCs in a high system area is treated, and the requirements of relevant standards in 'volatile organic compound unorganized discharge control Standard' (GB 378222019) can be met.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of the present application.
Illustration of the drawings:
in the figure: the system comprises a main pipe 1, a first branch pipe 2, a second branch pipe 3, a third branch pipe 4, a fourth branch pipe 5, a first tail gas collecting pipeline 6, a rainwater production sewage pool 7, an alkali liquor storage tank 8, a waste liquid alkali tank 9, a boiling bed 10, a cooler 11, a red oil trench 12, a second tail gas collecting pipeline 13, an air pipeline 15, an air fan 16, a pipeline dehumidifier 17, a flame arrester 18, an explosion venting valve 19 and an emergency cut-off valve 20.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present application, and refer to fig. 1.
The rainwater production sewage pool in the MTO device mainly receives initial rainwater and wastewater discharged during the overhaul of various devices or the on-site flushing of a heat exchanger, and as the COD (chemical oxygen demand) of the discharged wastewater is high, and the top of the rainwater production sewage pool is open, volatile gas in the wastewater is easy to diffuse, the on-site odor is serious. When a newly added boiling bed in the MTO device is regenerated, nitrogen needs to be used for back flushing. And discharging the regeneration waste gas to a liquid separating tank in the separation and regeneration system. When the gas-liquid phase drying bed in the separation workshop is regenerated, liquid needs to be stored in the liquid separation tank, so that the regeneration waste gas of the fluidized bed cannot be discharged to a torch system. In order to maintain the normal operation of the fluidized bed, the regenerated waste gas is discharged to the air at present, so that the peculiar smell on site is serious. The alkaline washing tower of the olefin separation device can regularly discharge waste alkali liquor and waste red oil every day in the normal operation process, so that the site odor is heavy.
Therefore, in order to solve the above problems, the present application provides the following solutions: the utility model provides a treatment system for volatile organic compounds, including being responsible for 1, first branch pipe 2 intercommunication sets up in the upper end of being responsible for 1, second branch pipe 3, third branch pipe 4 and fourth branch pipe 5 from last to feeding through setting up on being responsible for 1 down in proper order, rainwater production effluent water sump 7 is connected through first tail gas collection pipeline 6 and is set up in the one end position department of being responsible for 1 is kept away from at first branch pipe 2, and during the use, can be provided with the draught fan on first branch pipe 2, preferably, rainwater production effluent water sump 7 top is sealed and be provided with four first tail gas collection pipelines 6 between 2, the volatile organic compounds gas that produces in rainwater production effluent water sump 7 can be led to and is responsible for 1 through four first tail gas collection pipelines 6 and first branch pipe 2 through the draught fan, set up 7 top seals of rainwater production effluent water sump, can avoid the volatile organic compounds gas that rainwater production effluent water sump 7 produced to leak outward.
Alkali lye storage tank 8 and waste liquid alkali groove 9 all communicate the setting and keep away from the one end position department of being responsible for 1 in second branch pipe 3, specifically, alkali lye storage tank 8 communicates with second branch pipe 3 through first connecting pipe, waste liquid alkali groove 9 communicates with second branch pipe 3 through the second connecting pipe, and during the use, can be provided with the draught fan on second branch pipe 3, the volatile organic compounds gas that produces in alkali lye storage tank 8 and the waste liquid alkali groove 9 can be introduced through second branch pipe 3 and be responsible for 1 through the draught fan.
The boiling bed 10 sets up the one end position department of being responsible for 1 at third branch pipe 4, and during the use, can be provided with the draught fan on third branch pipe 4, the volatile organic compounds gas that the boiling bed 10 produced can lead to the person in charge 1 through third branch pipe 4 through the draught fan, cooler 11 sets up on third branch pipe 4, and set up the back, cooler 11 is located boiling bed 10 and is responsible for between 1, can be to the high temperature gas of boiling bed 10 exhaust through cooler 11, the hot gas cools off promptly, be provided with the drain in the bottom of cooler 11.
The one end position department of being responsible for 1 is kept away from at fourth branch pipe 5 to red oil trench 12 through second tail gas collecting pipe 13 setting, and be provided with the draught fan on fourth branch pipe 5, preferably, red oil trench 12 top seal and fourth branch pipe 5 between be provided with three second tail gas collecting pipe 13, the volatile organic compounds gas that produces in red oil trench 12 can be led to and is responsible for 1 through three second tail gas collecting pipe 13 and fourth branch pipe 5 through the draught fan, set up 12 top seals of red oil trench, can avoid the volatile organic compounds gas that red oil trench 12 produced to leak outward. Volatile organic compounds gas led to the main pipe 1 through the first branch pipe 2, the second branch pipe 3, the third branch pipe 4 and the fourth branch pipe 5 can be led to a CO incinerator for combustion through an air pipeline 15 by an air fan 16 in a unified mode, the burnt VOCs gas is converted into CO, CO2, H2O and the like, the whole system is not provided with a VOCs discharge port, and zero discharge of VOCs can be achieved.
In order to remove the water vapor generated in the rainwater production sewage tank and the red oil trench, it is preferable that pipeline dehumidifiers 17 are respectively disposed at the pipeline openings of the first and second exhaust gas collecting pipelines 6 and 13.
Preferably, the main pipe 1 is further provided with a flame arrester 18, an explosion venting valve 19 and an emergency cut-off valve 20 in sequence at a position close to the air duct 15. Set up back-fire relief device 18 on being responsible for 1, can avoid burning the in-process through CO burning furnace to combustible gas, the pipeline backfire phenomenon appears, takes place danger. The provision of the quick action emergency valve 20 in the main pipe 1 prevents the main pipe 1 from being cut off from the CO incinerator in the event of an accident to the system, and allows the gas in the pipeline to be vented through the explosion venting valve 19 after the pipeline has been cut off. Meanwhile, in order to avoid the air fan 16 from sucking the main pipe 1, the first branch pipe 2, the second branch pipe 3, the third branch pipe 4 and the fourth branch pipe 5 flat, when the air fan is used, an air distribution valve can be further arranged on the second branch pipe 3, an overpressure explosion relief valve is further arranged on the third branch pipe 4, and controls are further arranged on the first branch pipe 2, the second branch pipe 3, the third branch pipe 4 and the fourth branch pipe 5, so that the amount of volatile organic compound gas can be controlled correspondingly.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (5)
1. The utility model provides a treatment system for volatile organic compounds, its characterized in that, is including being responsible for (1), be responsible for (1) from last to having set gradually first branch pipe (2), second branch pipe (3), third branch pipe (4) and fourth branch pipe (5) down, first branch pipe (2) are kept away from the one end of being responsible for (1) is connected with rainwater production sewage pond (7) through first tail gas collection pipeline (6), second branch pipe (3) are kept away from the one end intercommunication of being responsible for (1) has alkali lye storage tank (8) and waste liquid alkali groove (9), the one end intercommunication that third branch pipe (4) were kept away from be responsible for (1) has boiling bed (10), be provided with on third branch pipe (4) and be located boiling bed (10) with be responsible for cooler (11) between (1), fourth branch pipe (5) are kept away from the one end of being responsible for (1) is connected with red oil trench (12) through second incinerator tail gas collection pipeline (13), the one end of being responsible for (1) is kept away from first branch pipe (2) is connected with air duct (16) and is connected with the air outlet of fan (16) intercommunication.
2. A volatile organic compounds abatement system according to claim 1, wherein said rainwater production wastewater tank (7) is top sealed and four said first off-gas collection pipes (6) are provided between said first branch pipes (2).
3. A volatile organic compounds abatement system according to claim 1, wherein the red oil drain (12) is sealed at the top and has three second off-gas collecting ducts (13) arranged between it and the fourth branch pipe (5).
4. A volatile organic compounds abatement system according to claim 3, wherein duct dehumidifiers (17) are provided at duct mouths of the first and second off-gas collection ducts (6, 13).
5. The abatement system for volatile organic compounds according to claim 4, wherein a flame arrester (18), an explosion venting valve (19) and an emergency shut-off valve (20) are further provided in sequence at a position of the main pipe (1) close to the air duct (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221360786.4U CN217899897U (en) | 2022-05-31 | 2022-05-31 | Treatment system for volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221360786.4U CN217899897U (en) | 2022-05-31 | 2022-05-31 | Treatment system for volatile organic compounds |
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| Publication Number | Publication Date |
|---|---|
| CN217899897U true CN217899897U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221360786.4U Active CN217899897U (en) | 2022-05-31 | 2022-05-31 | Treatment system for volatile organic compounds |
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| Country | Link |
|---|---|
| CN (1) | CN217899897U (en) |
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2022
- 2022-05-31 CN CN202221360786.4U patent/CN217899897U/en active Active
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