CN113877410A - VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system - Google Patents
VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system Download PDFInfo
- Publication number
- CN113877410A CN113877410A CN202010625666.1A CN202010625666A CN113877410A CN 113877410 A CN113877410 A CN 113877410A CN 202010625666 A CN202010625666 A CN 202010625666A CN 113877410 A CN113877410 A CN 113877410A
- Authority
- CN
- China
- Prior art keywords
- sewage gathering
- sewage
- gathering
- purifying device
- vocs
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 113
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 33
- 238000001179 sorption measurement Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims description 44
- 235000019645 odor Nutrition 0.000 claims description 43
- 239000000945 filler Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004887 air purification Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 235000015110 jellies Nutrition 0.000 claims description 5
- 239000008274 jelly Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 47
- 238000005516 engineering process Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000012856 packing Methods 0.000 description 10
- 238000007689 inspection Methods 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007781 pre-processing Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000009102 absorption Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
A VOCs and odor treatment method for an industrial sewage gathering and transportation system comprises the following steps: 1) planning and distinguishing each sewage gathering and transportation pipeline in the sewage gathering and transportation system according to the trend of the sewage gathering and transportation pipeline, independently processing each planned and distinguished sewage gathering and transportation pipeline, and hermetically installing a first air purifying device at one or more wellheads of each sewage gathering and transportation pipeline; 2) one or more gas collection well covers are added at the collection position of each sewage gathering pipeline and two or more than two sewage gathering pipelines and are used for collecting VOCs and odor generated in the sewage gathering system, and the gas collection well covers are sequentially communicated with an induced draft fan, a second air purifying device and an exhaust chimney through pipelines; 3) sealing the well mouth and/or the open position of the sewage gathering and transportation system without the first wind purifying device by using a sealing well cover; and the first and second air purifying devices are utilized to carry out desulfurization, oxidation and adsorption treatment on all VOCs and odor in the sewage gathering and transportation system, and gas which reaches the discharge standard is directly discharged.
Description
Technical Field
The invention relates to the field of petrochemical industry, in particular to a treatment method for effectively treating odor output by inspection wells, sewage wells and/or other open positions in a sewage gathering and transporting system in the petrochemical industry.
Background
Volatile Organic Compounds (VOCs) and hydrogen sulfide (H)2S), organic sulfide, odorous odor gas, benzene, toluene, xylene and the like are main pollutants in the odor discharged by the petrochemical industry, particularly Volatile Organic Compounds (VOCs) gas is more harmful, and with the stricter environmental requirements, the petrochemical industry is urgent to construct a standardized odor control task. In which VOCs and H are used2S is typical malodorous gas, which not only causes great potential safety hazard to enterprise production, but also causes serious corrosion to equipment and pipelines and increases production cost. Meanwhile, the life health of the staff is greatly harmed, and the ecological environment is seriously influenced. And the harmful gases generated in the production process are organized and treated, so that qualified emission is realized. However, in the sewage collecting and transporting system, odor is still generated and is discharged from each inspection well, sewage well or other open positions, which belongs to inorganization odor discharge and is not properly disposed, and because the sewage collecting and transporting system has long pipelines and a large number of inspection wells, sewage wells or other open positions, namely, the sewage collecting and transporting system has the characteristics of wide dispersion area, low relative pollutant concentration, high collection and detection difficulty and the like, the odor discharged from the sewage collecting and transporting system is difficult to carry out organized and standardized treatment technology and means.
In particular, because the sewage gathering and transportation system has a large transportation range and complicated trend of each sewage pipeline, the sewage is difficult to be effectively collected and treated uniformly and is discharged organized, in order to solve the problem, the existing method is to directly seal all well covers in the sewage gathering and transportation system, although the unorganized discharge of odor is reduced to a certain degree, most toxic and harmful gases are continuously accumulated and enriched in the sewage well and the pipeline, and the potential risks of pipeline corrosion and sewage well explosion are aggravated.
Disclosure of Invention
Aiming at the unorganized discharge of VOCs and H in pollution sources such as sewage pipelines, sewage wells, oil separating wells and the like in a sewage gathering and transportation system2The invention provides a VOCs and odor treatment method for an industrial sewage gathering and transportation system, which are distributed, have higher treatment efficiency, more flexible layout and higher technical feasibility.
The VOCs and odor treatment method for the industrial sewage gathering and transportation system comprises the following steps,
1) planning and distinguishing each sewage gathering and transportation pipeline in the sewage gathering and transportation system according to the trend of the sewage gathering and transportation pipeline, independently processing each planned and distinguished sewage gathering and transportation pipeline, and hermetically installing a first air purifying device at one or more wellheads of each sewage gathering and transportation pipeline;
2) one or more gas collection well covers are added at the collection position of each sewage gathering pipeline and two or more than two sewage gathering pipelines and are used for collecting VOCs and odor generated in the sewage gathering system, and the gas collection well covers are sequentially communicated with an induced draft fan, a second air purifying device and an exhaust chimney through pipelines;
3) sealing treatment is carried out on the well mouth and/or the open position of the sewage gathering and transportation system which is not provided with the first wind purifying device by using a sealing well cover;
when the second air purifying device is not started, the first air purifying device carries out desulfurization, oxidation and adsorption treatment on VOCs and odor in the sewage gathering and transportation system, and directly discharges gas which reaches the standard and is discharged;
start during the second air purifying device by the inside VOCs of sewage collection and transportation system and foul smell warp are taken out to the second air purifying device the draught fan gets into the second air purifying device carries out desulfurization, oxidation, adsorption treatment, warp exhaust chimney discharges the gas of discharge to reach standard, simultaneously by first air purifying device is to the inside input air of sewage collection and transportation system.
Preferably, before the first wind purifying device is installed, a wellhead concrete foundation is manufactured at an installation wellhead, and a positioning embedded part for sealing and fixing the first wind purifying device is embedded.
Preferably, the front end and the rear end of each sewage gathering and transportation pipeline are respectively provided with one first air purifying device, and a gas collection well cover is additionally arranged at the collection position of two or more sewage gathering and transportation pipelines.
Preferably, first air purification device is including the processing box body with each well head position sealing connection of sewage collection system the inside follow up according to the preface of being provided with the preprocessing unit down of processing box, membrane processing unit can collect desulfurization, oxidation, absorption adsorption unit as an organic whole through changing adsorption material, catalytic material, decomposition material, the top of processing box is sealed, be fixed with a row of wind lid, and VOCs and the foul smell in the defeated system of industrial sewage collection are exported through each well head position, get into and carry out the preliminary treatment via preprocessing unit after handling the box, carry out dehydration by membrane processing unit to the foul smell that gets into again, carry out desulfurization, oxidation, adsorption treatment via adsorption processing unit at last, will reach emission standard's gas from the lid of airing exhaust and discharge into the atmosphere.
Preferably, the treatment box body is respectively provided with a base part and a main body part, and a pretreatment unit capable of performing demisting and deoiling treatment on all VOCs and odor entering the treatment box body is fixedly arranged in the base part.
Preferably, a plurality of lifting ring positioning rods are installed on the base portion of the treatment box body, the lifting ring positioning rods are internal thread through pipes, the upper portions of the lifting ring positioning rods are in direct threaded connection with lifting ring bolts, and the bottoms of the lifting ring positioning rods are connected with a positioning embedded part and a first sealing gasket on the periphery of a well head.
Preferably, the membrane processing unit is fixedly installed in the main body part above the pretreatment unit, and comprises a support frame fixedly connected with the inner wall of the processing box body and a selective unpowered gas membrane device hermetically connected with the support frame through a sealing ring.
Preferably, the unpowered gaseous membrane device of selectivity and the shape phase-match of handling the box are including being located arch all around, being concave basin bottom structure in the middle of being located, are provided with an annular groove in the middle of arch all around, basin bottom structure is provided with a logical groove in middle lowest position to be provided with automatic drainage choke device in the middle of leading to the groove, the basin bottom structure is followed lead to the groove and form the inclined plane toward the side, paste on the inclined plane and have the unpowered gaseous membrane of selectivity.
Preferably, the adsorption treatment unit comprises a packing rack detachably connected with the inner top of the treatment box body, a rack slotting tool is installed at the bottom of the packing rack, the rack slotting tool is hermetically connected with the membrane treatment unit, a plurality of stuffing boxes which are parallel up and down and can be filled with and replace different materials are arranged inside the packing rack, and a second sealing gasket is arranged at the joint of each stuffing box and the corresponding packing rack.
Preferably, the hanger slotting tool is inserted into an annular groove of the unpowered gas membrane device, and liquid jelly glue for hermetically connecting the hanger slotting tool and the unpowered gas membrane device is injected into the annular groove.
The VOCs and odor treatment method for the industrial sewage gathering and transportation system solves the problem that VOCs and H in odor are inorganically discharged in the existing sewage gathering and transportation system in a brand-new distributed treatment mode for each sewage gathering and transportation pipeline2S and other odor pollutants, and realizes VOCs and H in the sewage gathering and transportation system well and in the drainage pipeline2S and other odors are collected, conveyed, purified and discharged organically.
Through the second air purifying device integrating power and multi-technology coupling, a pretreatment technology, a desulfurization technology, a photocatalytic oxidation technology, a biological deodorization technology and an adsorption technology are arranged in the second air purifying device, odor generated by the industrial sewage gathering and transportation system is collected in a centralized manner and discharged after treatment.
The invention can realize modular design and standardized production based on the use of the first wind purifying device and the second wind purifying device, and has the characteristics of low investment and operation cost, high treatment efficiency and technical feasibility, flexible layout, simple and convenient installation and maintenance and the like.
Drawings
FIG. 1 is a schematic diagram of the abatement process of the present invention.
Fig. 2 is a schematic front view of the first wind cleaning device according to the present invention.
Fig. 3 is a schematic view of the internal structure of the first wind purifying device of the present invention.
FIG. 4 is a schematic perspective view of a treatment tank according to the present invention.
Fig. 5 is a schematic perspective view of the selective unpowered gas membrane unit of the present invention.
FIG. 6 is a schematic side view of a selective unpowered gas membrane device of the invention.
Fig. 7 is an enlarged schematic view of a portion a in fig. 3.
The reference numbers in the figures illustrate: 1 a first air purifying device, 2 a second air purifying device, 3 a wellhead concrete foundation, 4 a gas collecting well cover, 5 an induced draft fan, 6 a sealing well cover, 7 a sewage gathering and transportation pipeline, 8 an exhaust chimney, 9 pipelines, 10 a base part, 11 a main body part, 12 a flame-retardant heat-insulating layer, 13 a lifting ring positioning rod, 14 a lifting ring bolt, 15 a positioning embedded part, 16 a first sealing gasket, 17 a pretreatment unit, 18 a membrane treatment unit, 19 an adsorption treatment unit, 20 a vent cover, 30 a support frame, 31 a sealing ring, 32 a selective unpowered gas membrane device, 33 an annular groove, 34 a bulge, 35 a basin bottom structure, 36 an automatic water and gas discharging and blocking device, 37 a through groove, 38 a selective gas membrane, 39 liquid jelly glue, 40 a filler rack, 41 a filler box, 42 a rack slotting tool, 43 a second sealing gasket, 50 a vent window, 51 a 52 a fire blocking net, 53 a heat-insulating layer, 54 third seal
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein the embodiments are illustrative of the invention and not restrictive. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, the VOCs and odor treatment method for the industrial sewage gathering and transportation system comprises the following steps:
1) planning and distinguishing each sewage gathering and transportation pipeline in the sewage gathering and transportation system according to the trend of the sewage gathering and transportation pipeline, independently treating each planned and distinguished sewage gathering and transportation pipeline (also called a drainage pipeline) 7, and specifically, hermetically installing a first air purifying device 1 at one or more well mouths of each sewage gathering and transportation pipeline 7;
for example, sewage gathering and transportation systems distributed in a shape like a Chinese character 'tian' are distinguished according to the trend of each sewage gathering and transportation pipeline 7, the sewage gathering and transportation pipelines 7 with 12 line segments and the gathering positions of 9 sewage gathering and transportation pipelines 7 are arranged, and a plurality of water seal well heads, inspection well heads, oil separation well heads, water collecting well heads and the like are distributed on the sewage gathering and transportation pipelines 7 of each line segment. Preferably, the first air purifying devices 1 are respectively arranged on the well mouths at the starting end and the tail end of each line segment sewage gathering and transportation pipeline 7, of course, a plurality of first air purifying devices 1 can also be arranged on a plurality of well mouths of each line segment (strip) sewage gathering and transportation pipeline 7, and the specific well mouths can be water seal well mouths, inspection well mouths, oil separation well mouths and water collection well mouths which are different; before the installation of first air purification device 1, need make well head concrete foundation 3 at the installation well head, make firm, level and smooth ground, guarantee first air purification device 1 installation and the stability and the leakproofness of operation.
2) A gas collection well cover 4 is added at the collection position of the sewage collection and transportation pipeline 7 and is used for collecting odor generated in the sewage collection and transportation system, and the gas collection well cover 4 is sequentially communicated with an induced draft fan 5, a second air purification device 2 and an exhaust chimney 8 through a pipeline 9;
the method comprises the following steps: still take the sewage gathering and transportation system distributed in a shape like a Chinese character 'tian' as an example, a gas collection well cover 4 is arranged at four corners and at the position where the middle crosses in a cross shape, a group of draught fans 5, second air purifying devices 2 and exhaust chimneys 8 are arranged aiming at one gas collection well cover 4, the draught fans 5 are used for pumping out VOCs and odor in the sewage gathering and transportation system through pipelines 9 and the gas collection well cover 4, the VOCs and odor enter the second air purifying devices 2 for collection, transportation and purification treatment, and finally the exhaust chimneys 8 are used for organized emission. The second air purifying device 2 is a power type multi-technology coupling combined waste gas purifying device, and the related coupling combined technology mainly comprises a pretreatment technology, a desulfurization technology, a photocatalytic oxidation technology, a biological deodorization technology and an adsorption technology, and is used for intensively collecting odor generated by the industrial sewage gathering and transportation system and discharging the odor after treatment. The second wind purifying device 2 may be a wind purifying device in the prior art of tissue processing, and will not be described in detail herein.
Certainly, the second air purifying device 2 can also be installed at the interlude of every sewage gathering and transportation pipeline 7, sets up the gas collection well lid 4 at the interlude of sewage gathering and transportation pipeline 7 promptly, is applicable to the sewage gathering and transportation pipeline 7 of longer distance, takes out VOCs and the foul smell in the sewage gathering and transportation pipeline 7, carries out effective processing.
3) Sealing treatment is carried out on the well mouth and/or the open position of the sewage gathering and transportation system which is not provided with the first air purifying device 1 by using a sealing well cover 6;
the method comprises the following steps: the well mouth of each line segment (strip) sewage gathering and transportation system 7 which is not provided with the first air purifying device 1 is sealed by the sealing well cover 6, namely the sealing well cover 6 is used for replacing the original well cover in the sewage gathering and transportation system, so that the sealing performance of the whole sewage gathering and transportation system is ensured, and the gas in the whole sewage gathering and transportation system can only be discharged after being treated by the first air purifying device 1 and/or the second air purifying device 2;
the specific operation is carried out in the following mode:
under the normal state, the first air purifying device 1 carries out desulfurization, oxidation and adsorption treatment on the odor in the sewage gathering and transportation system, and directly discharges the gas which reaches the standard and is discharged; in particular to a method for realizing the unpowered operation by utilizing the membrane processing unit 18 in the first air purifying device 1 to purify the unorganized exhaust gas. In detail, the toxic and harmful gas volatilized in the sewage gathering and transportation system firstly enters the pretreatment unit 17 of the first air purifying device 1 to remove water mist and oil gas, then the enrichment and screening of pollutants are realized through the membrane treatment unit 18, and H in the pollutants2The S is decomposed and removed after passing through a desulfurization unit in the adsorption treatment unit, most of VOCs and other odor are polymerized and decomposed after passing through a catalytic oxidation unit, and the remaining few VOCs and other odor are finally and thoroughly adsorbed and purified in the adsorption unit.
When the gas pressure in the sewage gathering and transportation system reaches a preset value, starting the second air purifying device 2; VOCs and odor in the sewage gathering and transportation system are extracted by the second air purifying device 2 through the draught fan 5, and are subjected to desulfurization, oxidation and adsorption treatment through the second air purifying device 2, and finally, gas which reaches the standard and is discharged through the exhaust chimney 8. All pollutant indexes of the gas purified by the first air purifying device 1 and the second air purifying device 2 meet the emission standards regulated by the relevant national standards, and the potential safety hazard and the environmental protection risk caused by the unorganized emission of odor of a sewage gathering and transportation system in an enterprise factory are thoroughly solved.
Of course, the second air purifying device 2, the draught fan 5 and the exhaust chimney 8 can also adjust the start-stop time according to the length of the sewage gathering and transportation system and the working condition, and are started periodically.
When the second air purifying device 2, the draught fan 5 and the exhaust chimney 8 work, the first air purifying device 1 reversely admits air, and air is input into the industrial sewage gathering and transportation system through the first air purifying device 1 to supplement the gas pressure of the industrial sewage gathering and transportation system.
As shown in fig. 2 and 3, the first air purifying device 1 includes a processing box body, the bottom of the processing box body is open, and can be hermetically connected with the inspection well, the sewage well and/or the open position, the top of the processing box body is hermetically and fixedly connected with the exhaust cover 20, so that all the VOCs and odors discharged from the inspection well, the sewage well and/or the open position enter the processing box body, the processing box body is internally subjected to defogging, oil removal, water removal, desulfurization, oxidation and adsorption, and the odors reach the discharge standard and are discharged into the air from the exhaust cover 20.
The processing box body is integrally formed by metal materials, and can be integrally formed by injection molding of other plastics with fireproof functions. The processing box body in the invention is a closed box body only with an upper opening and a lower opening, forms a base part 10 and a main body part 11, has an inverted T-shaped longitudinal section, can have a square or round transverse section and other shapes, and is illustrated in figure 4. The inside of the treatment box body is fixedly provided with a pretreatment unit 17, a membrane treatment unit 18 and an adsorption treatment unit 19 which integrates the functions of desulfurization, oxidation and adsorption from bottom to top in sequence. The method comprises the following steps:
as shown in fig. 3, a flame-retardant insulating layer 12 is fixedly attached to an inner wall surface of the main body portion 11 of the treatment cabinet in a sticking manner. And hanging ring positioning rods 13 which penetrate through the base part 10 are respectively arranged at four corners of the base part 10. The lifting ring positioning rod 13 is an internal thread through pipe, the upper part of the lifting ring positioning rod is directly in threaded connection with the lifting ring bolt 14, and the mounting and the dismounting are convenient; the bottom is connected to a positioning embedment 15 embedded in the wellhead concrete foundation 3 and sealed by a first seal gasket 16 before the base portion 10 is connected to the positioning embedment 15, preventing odor discharged from the inspection well, the sewage well and/or the open place from being discharged from the gap between the treatment tank and the ground.
The base portion 10 is fixedly installed with a pre-processing unit 17, the shape of the pre-processing unit 17 and the shape of the processing box body, which is a square demisting device in this embodiment, are fixed on the inner top of the base portion 10 by a set screw (not shown in the figure), so that all the gas entering the processing box body can rise into the main body portion 11 after passing through the demisting device. The defogging device is a mature product sold in the market, and the specific structure and the working principle of the defogging device are not described in detail.
The membrane treatment unit 18 is fixedly mounted in the main body 11 above the pretreatment unit 17. as shown in fig. 3, the membrane treatment unit 18 includes a support frame 30 fixed to the inner wall surface of the treatment chamber by welding or the like, and a selective non-powered gas membrane unit 32 sealingly connected to the support frame 30 by a sealing ring 31, a bolt or the like. In detail, the selective unpowered gas membrane device 32 is matched with the shape of the processing box body, is square, and comprises a protrusion 34 positioned on the periphery and a basin bottom structure 35 positioned in the middle and concave, wherein an annular groove 33 is arranged in the middle of the protrusion 34, a through groove 37 is arranged at the lowest position in the middle of the basin bottom structure 35, an automatic water drainage and air blocking device 36 is arranged in the middle of the through groove 37, the automatic water drainage and air blocking device 36 is made of ABS + PC plastic, and can drain redundant liquid in the through groove 37. The basin bottom structure 35 forms an inclined plane from the through groove 37 to two sides, a selective unpowered gas membrane 38 is adhered on the inclined plane of each side, gas entering through the demisting device can enter the upper part of the membrane processing unit 18 through the selective unpowered gas membrane 38, and water is stopped below the membrane processing unit 18 by the selective unpowered gas membrane 38. A small amount of water entering the membrane treatment unit 18 above the selective non-energized gas membrane 38 is collected by the channel 37 and discharged from the automatic water discharge air lock 36. The selective unpowered gas membrane 38 is a commercially available mature product and will not be described in detail.
The interior top installation of handling the box adsorbs processing unit 19, adsorbs processing unit 19 including fixed mounting at the interior top of handling the box filler stores pylon 40, and filler stores pylon 40 is a square frame that matches with the square of handling the box body shape, seals all around, the open structure in both ends. The bottom of the packing hanger 40 is provided with a square hanger slotting cutter 42, when the packing hanger 40 is arranged in the treatment box body, the hanger slotting cutter 42 is just inserted into the annular groove 33 arranged on the bulge of the selective unpowered gas membrane device 32, then the liquid jelly 39 is injected into the annular groove 33, after the liquid jelly 39 is solidified, a good sealing effect is formed between the membrane treatment unit 18 and the adsorption treatment unit 19, and simultaneously the bottom of the packing hanger 40 is abutted against the upper surface of the bulge 34 of the selective unpowered gas membrane 38, as shown in fig. 6.
The inside stuffing box 41 that is equipped with three parallel arrangement from top to bottom of filler stores pylon 40, stuffing box 41 inserts the installation through drawer type structure, from up three stuffing box 41 inside filled with decomposition material according to the preface down, catalytic material, adsorbing material, can carry out the desulfurization to the foul smell among the gathering and transportation system, the oxidation, effective processing such as absorption, the junction between every stuffing box 41 and filler stores pylon 40 all is provided with the sealed pad 43 of second, this sealed pad 43 of second is rubber packing, can the effective control foul smell flow direction, and the treatment efficiency is improved. When the replacement of the packing is required, the adsorption treatment unit 19 is taken out together with the membrane treatment unit 18, and the replacement of the packing and the replacement of the selective unpowered gas membrane 38 are performed.
The upper part of the processing box body is provided with a detachable exhaust cover 20, the exhaust cover 20 is provided with a ventilation window 50, the ventilation window 50 is internally provided with a fire retarding net 52, the fire retarding net 52 is made of brass, the inner wall of the exhaust cover 20 is provided with a fire retarding type heat insulating layer 53, the exhaust cover 20 is connected with the top of the processing box body in a hidden locking way through two lock catches 51 arranged inside, and the space between the exhaust cover 20 and the processing box body is sealed by a third sealing gasket 54, as shown in figure 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A VOCs and odor treatment method for an industrial sewage gathering and transportation system comprises the following steps,
1) planning and distinguishing each sewage gathering and transportation pipeline in the sewage gathering and transportation system according to the trend of the sewage gathering and transportation pipeline, independently processing each planned and distinguished sewage gathering and transportation pipeline, and hermetically installing a first air purifying device at one or more wellheads of each sewage gathering and transportation pipeline;
2) one or more gas collection well covers are added at the collection position of each sewage gathering pipeline and two or more than two sewage gathering pipelines and are used for collecting VOCs and odor generated in the sewage gathering system, and the gas collection well covers are sequentially communicated with an induced draft fan, a second air purifying device and an exhaust chimney through pipelines;
3) sealing treatment is carried out on the well mouth and/or the open position of the sewage gathering and transportation system which is not provided with the first wind purifying device by using a sealing well cover;
when the second air purifying device is started or not started, the first air purifying device carries out desulfurization, oxidation and adsorption treatment on VOCs and odor in the sewage gathering and transportation system, and directly discharges gas which reaches the standard and is discharged;
start during the second air purifying device by the inside foul smell warp of second air purifying device with sewage collection system the draught fan is taken out, gets into the second air purifying device carries out desulfurization, oxidation, adsorption treatment, warp the gas of exhaust chimney discharge up to standard emission, simultaneously by first air purifying device is to the inside input air of sewage collection system.
2. The method according to claim 1, wherein a wellhead concrete foundation is made at the installation wellhead before the first air purifying device is installed, and a positioning embedded part for sealing and fixing the first air purifying device is embedded.
3. The method for treating VOCs and odors of industrial sewage gathering and transportation systems according to claim 1, wherein the first air purification devices are respectively disposed at the front and rear ends of each sewage gathering and transportation pipeline, and a gas collection well cover is additionally disposed at the collection point of two or more sewage gathering and transportation pipelines.
4. The method for VOCs and odor management for industrial sewage gathering and transportation system as recited in claim 2, it is characterized in that the first air purifying device comprises a processing box body which is hermetically connected with each wellhead position of the sewage gathering and transportation system, the pretreatment unit and the membrane treatment unit are sequentially arranged in the treatment box body from bottom to top, and the adsorption treatment unit can integrate desulfurization, oxidation and adsorption by replacing an adsorption material, a catalytic material and a decomposition material, the top of the treatment box body is sealed and is fixed with an exhaust cover, VOCs and odor in the industrial sewage gathering and transportation system are output through each well head position, enter the treatment box body and are pretreated through a pretreatment unit, then the entering odor is dehydrated through a membrane treatment unit, finally, desulfurization, oxidation and adsorption treatment are carried out through an adsorption treatment unit, and finally, the gas reaching the emission standard is exhausted into the atmosphere through the exhaust cover.
5. The method of claim 4, wherein the treatment tank is formed with a base portion and a main portion, and a pre-treatment unit capable of demisting all VOCs and odors entering the treatment tank is fixedly installed inside the base portion.
6. The method for treating VOCs and odor of an industrial sewage gathering and transportation system according to claim 5, wherein a plurality of lifting ring positioning rods are installed on the base portion of the treatment box body, the lifting ring positioning rods are internally threaded through pipes, the upper portions of the lifting ring positioning rods are directly in threaded connection with lifting ring bolts, and the bottom portions of the lifting ring positioning rods are connected with the positioning embedded parts and the first sealing gaskets on the periphery of the position of the well head.
7. The method of claim 4, wherein the membrane treatment unit is fixedly installed inside the main body part above the pretreatment unit, the membrane treatment unit comprises a support frame fixedly connected with the inner wall of the treatment box, and the selective unpowered gas membrane device is hermetically connected with the support frame through a sealing ring.
8. The method according to claim 7, wherein the selective unpowered gas membrane device is matched with the treatment box body in shape and comprises a circumferential protrusion and a middle concave basin bottom structure, an annular groove is formed in the middle of the circumferential protrusion, a through groove is formed in the middle lowest position of the basin bottom structure, an automatic drainage and air blocking device is arranged in the middle of the through groove, the basin bottom structure forms an inclined plane from the through groove to the side edge, and the selective unpowered gas membrane is adhered to the inclined plane.
9. The method for treating VOCs and odor in an industrial sewage gathering and transportation system according to claim 4, wherein the adsorption treatment unit comprises a filler hanging rack detachably connected with the top inside the treatment box body, a hanging rack slotting tool is installed at the bottom of the filler hanging rack, the hanging rack slotting tool is hermetically connected with the membrane treatment unit, a plurality of filler boxes which are parallel up and down and can be filled with and replace different materials are arranged inside the filler hanging rack, and a second sealing gasket is arranged at the joint of each filler box and the filler hanging rack.
10. The method according to claim 9, wherein the pylon slotting tool is inserted into an annular groove of the unpowered gas membrane unit, and liquid jelly for hermetically connecting the pylon slotting tool and the unpowered gas membrane unit is injected into the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625666.1A CN113877410A (en) | 2020-07-02 | 2020-07-02 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625666.1A CN113877410A (en) | 2020-07-02 | 2020-07-02 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113877410A true CN113877410A (en) | 2022-01-04 |
Family
ID=79012138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010625666.1A Pending CN113877410A (en) | 2020-07-02 | 2020-07-02 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113877410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085486A (en) * | 2023-09-05 | 2023-11-21 | 上海展冀环境有限公司 | Wind purifying device and manufacturing method and using method thereof |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586941A (en) * | 1985-02-04 | 1986-05-06 | Calgon Carbon Corporation | Sewer odor adsorber |
| DE29508835U1 (en) * | 1995-05-27 | 1995-09-28 | Stoerk Kuefers Paul | Deodorization filter |
| RU94033532A (en) * | 1994-09-13 | 1997-03-10 | С.П. Конаков | Method of purification and recovery of waste gases and waste water of industrial enterprises |
| KR200234635Y1 (en) * | 2001-03-12 | 2001-10-06 | 주식회사환경과생명 | Hydrogen sulfide and VOCs remove system using liguid catalyst and AC/ACF |
| JP2005205094A (en) * | 2004-01-26 | 2005-08-04 | Seiwa Kogyo Kk | Air purification system |
| CN101113034A (en) * | 2006-07-25 | 2008-01-30 | 上海绿人生态经济科技有限公司 | Waste water circulation utilizing system during integral split treatment of waste and old tyre |
| CN101328703A (en) * | 2007-06-18 | 2008-12-24 | 粟文钊 | Design method of municipal traffic construction, underground pipeline layout and related fields |
| CN102493542A (en) * | 2011-12-21 | 2012-06-13 | 哈尔滨工业大学 | Sewer inspection well with deodorization unit |
| CN104107616A (en) * | 2014-08-14 | 2014-10-22 | 叶大煜 | NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof |
| CN104492238A (en) * | 2014-11-17 | 2015-04-08 | 西安建筑科技大学 | Harmlessness removal apparatus for harmful gas in city sewage pipeline |
| CN105056696A (en) * | 2015-07-15 | 2015-11-18 | 北京中海京诚检测技术有限公司 | Waste gas exhaust control system for sewage gathering and transportation of petroleum refining industry |
| CN105107337A (en) * | 2015-07-23 | 2015-12-02 | 洛阳三信石化设备有限公司 | Centralized processing device of phenol-containing waste gas and sulfur-containing waste gas, and processing method |
| KR101595988B1 (en) * | 2015-10-16 | 2016-02-19 | 박진성 | Technology convergence composite deodorization system |
| CN205145892U (en) * | 2015-11-20 | 2016-04-13 | 江阴怡天环保设备有限公司 | Printing and dyeing exhaust gas purification system |
| CN206064151U (en) * | 2016-07-22 | 2017-04-05 | 刁玉国 | A kind of defecator for petroleum refinery process |
| CN206103523U (en) * | 2016-06-30 | 2017-04-19 | 重庆西亭科技有限公司 | Industrial waste gas treatment equipment |
| CN207745696U (en) * | 2017-11-29 | 2018-08-21 | 青岛金海晟环保设备有限公司 | A kind of odor treating device of petroleum chemical industry |
| CN108607276A (en) * | 2018-05-04 | 2018-10-02 | 佛山市建金建电子科技有限公司 | A kind of microbubble photodissociation waste gas purification apparatus |
| CN108654223A (en) * | 2018-03-22 | 2018-10-16 | 上海梅思泰克环境股份有限公司 | Non-energy-consumption sewage treatment plant odor treatment system |
| CN109095528A (en) * | 2018-11-07 | 2018-12-28 | 广州金鹏环保工程有限公司 | A kind of sewage plant bad smell circular treatment Zero discharging system and method |
| CN208660829U (en) * | 2018-08-24 | 2019-03-29 | 重庆康明斯发动机有限公司 | A kind of exhaust treatment system |
| CN110773360A (en) * | 2018-07-31 | 2020-02-11 | 上海碧瑞环保科技有限公司 | Environment-friendly paint spray booth |
| CN111068487A (en) * | 2020-01-17 | 2020-04-28 | 辽宁紫科环保科技有限公司 | Waste gas purification device and method for baking line of rubber shock pad |
| CN210613370U (en) * | 2019-08-07 | 2020-05-26 | 江苏南大华兴环保科技股份公司 | Foul waste gas collecting system for sewage station |
-
2020
- 2020-07-02 CN CN202010625666.1A patent/CN113877410A/en active Pending
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586941A (en) * | 1985-02-04 | 1986-05-06 | Calgon Carbon Corporation | Sewer odor adsorber |
| RU94033532A (en) * | 1994-09-13 | 1997-03-10 | С.П. Конаков | Method of purification and recovery of waste gases and waste water of industrial enterprises |
| DE29508835U1 (en) * | 1995-05-27 | 1995-09-28 | Stoerk Kuefers Paul | Deodorization filter |
| KR200234635Y1 (en) * | 2001-03-12 | 2001-10-06 | 주식회사환경과생명 | Hydrogen sulfide and VOCs remove system using liguid catalyst and AC/ACF |
| JP2005205094A (en) * | 2004-01-26 | 2005-08-04 | Seiwa Kogyo Kk | Air purification system |
| CN101113034A (en) * | 2006-07-25 | 2008-01-30 | 上海绿人生态经济科技有限公司 | Waste water circulation utilizing system during integral split treatment of waste and old tyre |
| CN101328703A (en) * | 2007-06-18 | 2008-12-24 | 粟文钊 | Design method of municipal traffic construction, underground pipeline layout and related fields |
| CN102493542A (en) * | 2011-12-21 | 2012-06-13 | 哈尔滨工业大学 | Sewer inspection well with deodorization unit |
| CN104107616A (en) * | 2014-08-14 | 2014-10-22 | 叶大煜 | NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof |
| CN104492238A (en) * | 2014-11-17 | 2015-04-08 | 西安建筑科技大学 | Harmlessness removal apparatus for harmful gas in city sewage pipeline |
| CN105056696A (en) * | 2015-07-15 | 2015-11-18 | 北京中海京诚检测技术有限公司 | Waste gas exhaust control system for sewage gathering and transportation of petroleum refining industry |
| CN105107337A (en) * | 2015-07-23 | 2015-12-02 | 洛阳三信石化设备有限公司 | Centralized processing device of phenol-containing waste gas and sulfur-containing waste gas, and processing method |
| KR101595988B1 (en) * | 2015-10-16 | 2016-02-19 | 박진성 | Technology convergence composite deodorization system |
| CN205145892U (en) * | 2015-11-20 | 2016-04-13 | 江阴怡天环保设备有限公司 | Printing and dyeing exhaust gas purification system |
| CN206103523U (en) * | 2016-06-30 | 2017-04-19 | 重庆西亭科技有限公司 | Industrial waste gas treatment equipment |
| CN206064151U (en) * | 2016-07-22 | 2017-04-05 | 刁玉国 | A kind of defecator for petroleum refinery process |
| CN207745696U (en) * | 2017-11-29 | 2018-08-21 | 青岛金海晟环保设备有限公司 | A kind of odor treating device of petroleum chemical industry |
| CN108654223A (en) * | 2018-03-22 | 2018-10-16 | 上海梅思泰克环境股份有限公司 | Non-energy-consumption sewage treatment plant odor treatment system |
| CN108607276A (en) * | 2018-05-04 | 2018-10-02 | 佛山市建金建电子科技有限公司 | A kind of microbubble photodissociation waste gas purification apparatus |
| CN110773360A (en) * | 2018-07-31 | 2020-02-11 | 上海碧瑞环保科技有限公司 | Environment-friendly paint spray booth |
| CN208660829U (en) * | 2018-08-24 | 2019-03-29 | 重庆康明斯发动机有限公司 | A kind of exhaust treatment system |
| CN109095528A (en) * | 2018-11-07 | 2018-12-28 | 广州金鹏环保工程有限公司 | A kind of sewage plant bad smell circular treatment Zero discharging system and method |
| CN210613370U (en) * | 2019-08-07 | 2020-05-26 | 江苏南大华兴环保科技股份公司 | Foul waste gas collecting system for sewage station |
| CN111068487A (en) * | 2020-01-17 | 2020-04-28 | 辽宁紫科环保科技有限公司 | Waste gas purification device and method for baking line of rubber shock pad |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085486A (en) * | 2023-09-05 | 2023-11-21 | 上海展冀环境有限公司 | Wind purifying device and manufacturing method and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4586941A (en) | Sewer odor adsorber | |
| CN203829904U (en) | Modular grouped organic waste gas treatment device | |
| CN113877411A (en) | Distributed air purifying device for industrial sewage gathering and transportation system | |
| CN113877410A (en) | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system | |
| CN104492238B (en) | A kind of innoxious removal device of urban sewage pipe obnoxious flavour | |
| CN212915103U (en) | VOCs (volatile organic compounds) and odor treatment equipment for industrial sewage gathering and transportation system | |
| CN212942206U (en) | Wind purifying device | |
| CN210410062U (en) | UV photolysis purification device for industrial waste gas | |
| CN211384519U (en) | Make gas circulating water odor treatment system | |
| CN204034519U (en) | Pernicious gas removal device | |
| CN217312654U (en) | Zero discharge treatment system for VOC (volatile organic compounds) in coal coking chemical production area | |
| CN213416693U (en) | Aerobic fermentation deodorizing device | |
| CN211522105U (en) | Device for collecting smoke dust of coke oven | |
| CN211069407U (en) | Low-temperature plasma odor recovery device | |
| CN211837177U (en) | Waste gas treatment system for hazardous waste temporary storage area | |
| CN106334438A (en) | Organic exhaust gas recovery processing device for reclaimed material high-temperature extruder | |
| CN207307582U (en) | A kind of exhaust-gas treatment UV photocatalytic oxidation devices | |
| CN112691498A (en) | Processing apparatus that multiple exhaust-gas treatment technology coupling was used jointly | |
| CN214972829U (en) | Waste gas treatment device for animal innocent treatment | |
| CN104815551A (en) | Treatment method and treatment device for garbage odor | |
| CN220143006U (en) | Purification and emission equipment for household garbage incineration flue gas | |
| CN210356644U (en) | Waste gas treatment device for production process of recycled plastic particles | |
| CN214503528U (en) | Pollution source waste gas monitoring device | |
| CN213527995U (en) | Harmless cleaning device for VOCs (volatile organic compounds) organic waste gas | |
| CN214148065U (en) | Photodissociation clarifier of commercial lampblack absorber |
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 |