CN104492238A - Harmlessness removal apparatus for harmful gas in city sewage pipeline - Google Patents
Harmlessness removal apparatus for harmful gas in city sewage pipeline Download PDFInfo
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- CN104492238A CN104492238A CN201410654272.3A CN201410654272A CN104492238A CN 104492238 A CN104492238 A CN 104492238A CN 201410654272 A CN201410654272 A CN 201410654272A CN 104492238 A CN104492238 A CN 104492238A
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Abstract
The invention discloses a harmlessness removal apparatus for harmful gas in city sewage pipeline, which comprises an air exhaust apparatus in an inspection well, the air exhaust apparatus extracts harmful gas in the inspection well, and is introduced to gas processing equipment arranged at port of the inspection well through an airduct, the gas processing equipment comprises a filtering apparatus and an adsorption apparatus, harmful gas passes through the filtering apparatus and the adsorption apparatus for processing harmful gas in order, and the processed gas is discharged in atmosphere. The harmlessness removal apparatus can be used for fast assembly and installation in the inspection well, and is capable of performing rapid and effective elimination as well as harmlessness processing on harmful gas in the well, land occupation of whole apparatus is little, the harmlessness removal apparatus has less influence on public transport, and work efficiency under well can be ensured.
Description
Technical field
The present invention relates to a kind of municipal sewers gas purification device for transferring, be specifically related to a kind of assemblnig inspection shaft of putting into and extract pipeline toxic and harmful out and the gasifying device that is assembled into one of discharging after harmless treatment by turbofan.
Technical background
Urban sewage pipe, i.e. municipal sewage system system, being mainly used in collecting and discharge urban district rainfall, life of urban resident sewage and industrial production wastewater, is the important component part of urban infrastructure.Investigate according to investigations, China city existing Water drainage system design mechanism is comparatively complicated, and the especially old town of urban inner, because design year is for Problems existing, mostly have employed the drainage pattern of confluence of rainwater and sewage, even the not treated design mechanism also directly entering urban sewage system of industrial wastewater.The sewage conduct of old town, due to long neglected and in disrepair, caliber is less, it is lack of standardization to manage, clear and coherent less, in duct bottom, time one growing way must occur that a large amount of mud deposits.And the pipe network planning and designing time limit of Xincheng District mostly is 10-20, design discharge is superfluous, the sewage conduct compared with Large Diameter Pipeline must be adopted, therefore under present flow rate, the cross-section of river is little, effluent flow rate is slow, weak to souring at the bottom of pipe, the larger particles in municipal wastewater can deposit at the bottom of pipe, forms alluvial phenomenon.Either way can produce sludgd deposition above, along with the increase of bed mud deposition, the dissolubility oxygen in bed mud can reduce gradually, and some anaerobes there has been good growing environment, in sewerage system, produce CH
4, H
2s, NH
3, the endogenous gas such as CO.
Hazard biological gas mainly H in pipeline
2s, it to the main harm mode of human body is: infringement human body respiration center, causes cell tissue severe depletion of oxygen, even threat to life.The H of high concentration
2s gas makes people's hyposphresia instantaneously, cannot discover danger, when concentration is more than 1000 × 10
-6time moment causing death.CH
4be a kind of common fuel gas, dense in sewage conduct, meets naked light or electric spark very easily explodes, and is called as " the stealthy bomb " in city; When the too high oxygen that can squeeze in air of methane concentration, cause danger.
In addition, the hydrogen sulfide gas produced in drainage pipeline rises the upper space of secondary sewage, will corrosion pipeline, discharge bad smell.The research of Hvitved-Jacobsen etc. shows, when the total concentration of sulfide in sewage is 2.0mg/L, drainage pipeline heavy corrosion will occur.Environmental Protection Agency was once investigated the drainage pipeline in 34 cities, and find that the corrosion rate of concrete duct is 2.5 ~ 10mm/a, it mainly promotes that material first elects hydrogen sulfide gas.
At present, the domestic research to sewage conduct pernicious gas is still in the exploratory stage, mainly concentrates on monitoring and monitoring and early warning aspect at present.But, to the control aspect of sewage conduct pernicious gas, current studies in China blank out.And abroad due to the installation of special ventilation equipment, seldom there is the explosive incident caused because sewage conduct pernicious gas exceeds standard in developed country.But, in the control of sewage conduct pernicious gas (particularly hydrogen sulfide and methane), still carry out large quantity research abroad.The method of external control pernicious gas is mainly divided into 4 classes:
1. improve the oxidation-reduction potential of Pipeline Water environment, control the generation of sulfide and methane.Major way has injection oxygen, adds nitrate or nitrite;
2. improve the pH value of Pipeline Water environment, suppress the activity of methagen (MA) and sulfate reducing bacteria (SRB).Main method adds alkaline matter as quick lime etc.;
3. add slaine, control sulfide and methane.Main method is in sewage, add slaine (iron, zinc, lead and mantoquita etc.), and sulfide can be made to precipitate with the form of insoluble metal sulfide, and wherein molysite is widely used in the generation controlling drainage pipeline medium sulphide content.
4. alternated blasting, pushes air by air blast inspection shaft in pipeline, forces ducted gas to overflow from adjacent inspection well head, replaces harmless air.
But all there is certain defect in above-mentioned four kinds of oxygenation modes:
1) although inject oxygen, add the generation that the method for nitrate or nitrite all can control drainage pipeline pernicious gas to some extent, and serious environmental pollution can not be caused, but with benevolence control mode while raising pipe network system oxidation-reduction potential, all add the consumption of volatile fatty acid, thus have a negative impact to the biological carbon and phosphorous removal in downstream, and the mode of this dosing is higher concerning the cost domestic.
2) research shows that raising pH value effectively can suppress the activity of methagen and sulfate reducing bacteria, and the level of hydrogen sulfide and methane gas in pipeline is significantly reduced.But, add the cost that the alkaloids high ph-values maintained in pipeline will increase pernicious gas control continuously, also can produce interference to the sewage disposal in downstream.
3) research finds Fe
3+not only can precipitated sulfur compound, and can also the activity of SRB and MA in killer tube road biomembrane, make the sulfate reduction rate and methane phase speed decrease 60% and 80% respectively.But comparatively large to slaine demand during practical operation, need the excessive of molysite to add, therefore high cost, and Fe
3+itself there is oxidation to pipeline.
4) practice shows that this mode has good removal effect to pernicious gas in air blast place and adjacent inspection shaft, but the gas that inspection shaft far away overflows is less, and overflows H2S foul smelling, contaminated environment, the sense organ of people is produced uncomfortable.
Summary of the invention
For CH in current Municipal sewage conduct
4, H
2the poisonous explosion hazard gases too high levels such as S, the operating personnel that takes place frequently is poisoned to death and the Tough questions of event of pipe explosion, the object of the invention is to, design a set of can the integral inspection well of Simple assembled and dismounting bleeding innoxious device, discharge and remove in sewage conduct the methane gas easily causing poisoning hydrogen sulfide gas He have hidden peril of explosion, the hydrogen sulfide in urban sewage pipe and concentration of methane gas is made to be reduced to level of security, life security when guarantee pipeline workman keeps in repair and the potential safety hazard of purging line accidental explosion.
In order to realize above-mentioned task, the present invention takes following technical solution:
The innoxious removal device of a kind of urban sewage pipe pernicious gas, comprise the air extractor be arranged in inspection shaft, pernicious gas in inspection shaft is extracted out and is guided to by wind conveying pipe in the gas processing device being arranged at inspection shaft well head by air extractor, gas processing device comprises filter and adsorbent equipment, pernicious gas processes pernicious gas through filter and adsorbent equipment successively, and the gas after process enters in air.
Further, in described gas processing device, be provided with the hollow comb gas dish be connected with wind conveying pipe, by comb gas dish, pernicious gas imported filter, adsorbent equipment successively.
Further, after the pernicious gas in wind conveying pipe enters comb gas dish, first by entering in filter, then again through adsorbent equipment with through the first wireway be connected of comb gas dish.
Further, described filter is sedimeter, the first described wireway extend in filter, pernicious gas by the first wireway enter filter and filter after, discharge filter by the second wireway be arranged on comb gas dish again, the second wireway is not communicated with the first wireway with comb gas dish.
Further, described filter comprises for leakage check well well head and passes through with wind conveying pipe the seal connected, and seal is provided with lautertuns.
Further, the sidewall of the lautertuns on described seal is circular configuration, and heart place is provided through the tube connector that seal docks with wind conveying pipe in the seal, and tube connector stretches in lautertuns, forms loop configuration between tube connector sidewall and lautertuns sidewall.
Further, described lautertuns top is disposed with from the bottom to top with the first gim peg, annular draw-in groove and the second draw-in groove, is respectively used to install comb gas dish and adsorbent equipment.
Further, described air extractor comprises the cabin be arranged in inspection shaft, and cabin lower end or side opening are provided with air inlet and are arranged on inspection shaft ordinary water level, is provided with turbine and for driving the motor of turbine in cabin; Motor is provided with fixed fastener, and this fixed fastener may be stuck on the cat ladder of inspection shaft inside.
Further, the profile of described cabin is scroll casing shape, and in cabin, motor adopts dual-axle motor, and motor is arranged on the steel plate of spiral case central cross-section, and turbine symmetry is arranged on machine shaft.
Further, be placed with limewash in described lautertuns, described adsorbent equipment is activated carbon adsorption layer.
This device is compared with the external mode adding medicine, and its advantage is:
1, structure is simple, assemble, dismantle easy
This device is primarily of 5 part compositions, and structure is simple, easily assembling, quick detachable, and workman can complete installment work through simple exercise in several minutes.When monitoring CH
4, H
2can be in place rapidly when S gas concentration exceeds standard, work in time;
2, cost is low, and operating cost is low
These device spiral case, wind channel tube, adsorption tank etc. are all made of metal, and cost is low, and intensity is high, not fragile, and the life-span is long, and maintenance cost is low; The energy used be clean, cheap electric energy, continuous service expense is comparatively economized.Selected filtered fluid is cheap limewash, effective, uses and changes conveniently;
3, on downstream wastewater process without impact
This device is intended to reduce CH with the method for physics
4, H
2s gas concentration, can not affect the physicochemical property of sewage, so can not have an impact to this province of sewage, does not produce impairment to the treatment process of downstream wastewater factory, operational management;
4, plant area is few, less on highway communication impact
This device major part, in underground work, only has adsorption tank and portable power source outside well, take highway area less, so device is when a certain place is run, less on the impact of this road vehicle traffic.
Accompanying drawing explanation
Fig. 1 is inspection shaft orthogonal view;
Fig. 2 is inspection shaft sectional side view;
Fig. 3 is the structural representation of device composition;
Fig. 4 is the drawing of section components: wherein Fig. 4 (a) is spiral case blower fan disassemblying structure drawing, Fig. 4 (b) is comb gas dish principle drawing, Fig. 4 (c) is comb gas dish upward view, and Fig. 4 (d) is seal configuration drawing;
Label in figure represents respectively:
1-lautertuns, 2-gim peg, the 3-the second wireway, 4-comb gas dish, 5-activated carbon adsorption layer, the 6-the first wireway, 7-inspection shaft, 8-tube connector, 9-flange, 10-wind conveying pipe, 11-connector, 12-cat ladder, 13-fixed fastener, 14-turbine, 15-cabin, 16-motor, 17-air inlet, 18-wire, 19-seal, 20-the first draw-in groove, the 21-the second draw-in groove, 22-portable power source;
Detailed description of the invention
The mentality of designing of applicant is, in conjunction with aerodynamics and adsorbing separation principle, the two turbofans utilizing intake larger air-breathing in inspection shaft 7, by wind conveying pipe 10, gas is sent inspection shaft 7, in order to prevent toxic gas or irritative gas from producing secondary pollution, well head establishes filter and adsorbent equipment to remove the gases such as hydrogen sulfide, ammonia, methane.This equipment mobility is strong, and be connected flexibly, structure is simple, and characteristics of compact layout, space availability ratio is high, easy to operate, environmental protection and energy saving.
Utilize this device can to aspirate the gas in inspection shaft 7, filter and adsorb, in gas after treatment, the content of harmful substance is few, meets discharge standard.
As shown in Figure 1 to Figure 3, the innoxious removal device of a kind of urban sewage pipe pernicious gas, comprise the air extractor be arranged in inspection shaft 7, pernicious gas in inspection shaft 7 is extracted out and is guided to by wind conveying pipe 10 in the gas processing device being arranged at inspection shaft 7 well head by air extractor, gas processing device comprises filter and adsorbent equipment, pernicious gas processes pernicious gas through filter and adsorbent equipment successively, and the gas after process enters in air.
This apparatus structure mainly comprises three parts:
Air extractor.Air extractor is arranged in inspection shaft 7, and its Main Function is derived by the pernicious gas in inspection shaft 7.Air extractor can adopt various structures, as long as gas can be extracted out, and not easily produces electrostatic, spark etc. when requiring that air extractor works, and produces dangerous in order to avoid light pernicious gas.Air extractor can entirety be put in inspection shaft 7, also only the aspirating air pipe of air extractor can be put into inspection shaft 7.Require that the efficiency that air extractor is bled is high, can effectively get rid of the pernicious gas in inspection shaft 7 at short notice; According to these requirements, one more preferably, adopts powerful turbofan as air extractor.
Filter.The effect of filter is mainly used for the material removing easily reaction in pernicious gas, as H
2s, NH
3deng; Filter can adopt the mode of reacting with pernicious gas, removes a part of pernicious gas fast by chemical means.But because sewage in inspection shaft 7 is flowing, harmful gas concentration bottom it needs the longer time just can effectively be diluted, then filter to need within the longer time fully and H2S, NH3 etc. react.One more preferably, can adopt the mode of liquid filtering, as limewash filters, can effectively remove part pernicious gas, can meet long filtering requirement, and cost be low.
Adsorbent equipment.For the pernicious gas methane in inspection shaft 7, it is difficult to be removed by chemical mode, as still having higher concentration when it is discharged, then meets naked light and easily causes danger.And the mode of absorption is a kind of methane removing method preferably, as activated carbon adsorption layer 5, good adsorption effect can be had to methane gas.Activated carbon adsorption layer 5 can adopt pressed active carbon, add the active carbon of additive, to improve the absorption property of active carbon, carries out effective Adsorption to methane.
According to above-mentioned thinking, for pernicious gas successively through suction, filtration, absorption, make the air quality in inspection shaft 7 meet construction requirement within a certain period of time, ensure that underground work is carried out smoothly.
Because a large amount of pernicious gases can be extracted out by air extractor at short notice, a device cushioned so is needed the gas of extraction and filter, adsorbent equipment to be coupled together, play cushioning effect, pernicious gas can be made to complete more fully, quickly and efficiently and filter in adsorption process.
In this programme, buffer unit adopts comb gas dish 4, and comb gas dish 4 is hollow disk body, and the gas extracted out by air extractor in wind conveying pipe 10 is entered in comb gas dish 4, then enters in filter.Gas enters after in comb gas dish 4, and the diameter of comb gas dish 4 is large compared with wind conveying pipe 10 diameter, has carried out slowly-releasing like this, make gas can enter into filter more reposefully, change the direction of gas simultaneously the flow velocity of gas.
When gas enters filter, should make gas can more in large area with filtering means touch, in this programme, throughly on comb gas dish 4 be connected with the first wireway 6, first wireway 6 is evenly distributed on comb gas dish 4 in the form of a ring, can arrange many groups, the gas in comb gas dish 4 enters into filter from the first wireway 6 one by one, makes gas fully, effectively can complete filter process.
And when adopting the mode of chemistry to remove pernicious gas, in this programme, adopt cheap limewash.The first wireway 6 lower end in comb gas dish 4 extend in limewash, the gas in each wind conveying pipe 10 from pipe out after, directly touch limewash, can effectively react with limewash, remove the hydrogen sulfide, ammonia etc. in pernicious gas; Reacted gas discharges filter from the second wireway 3 be arranged on comb gas dish 4 again, the caliber of the second wireway 3 is large compared with the first wireway 6, comb gas dish 4 distributes multiple, second wireway 3 directly runs through comb gas dish 4, with the interior wall of comb gas dish 4, the first wireway 6 is not communicated with, and is independent body; The gas filtered through limewash is emerged from limewash, due to the barrier effect of comb gas dish 4, makes gas can only pass comb gas dish 4 from the second wireway 3; Now, main in gas harmful components are only methane gas.
Because air extractor is when underground work, drives air flowing in well, understand some pernicious gas from the Space sprawls outside wind conveying pipe 10 to well head, therefore in the course of the work, the well head part except wind conveying pipe 10 needs to seal.And the seal 19 contained in filter for leakage check well 7 well head, seal 19 there is lautertuns 1, above-mentioned filtered fluid is housed in lautertuns 1, as limewash.
The lower end of seal 19, as traditional well head shape, is circular configuration, can just in time be placed on well head, be covered tightly by well head, and is provided with at the middle part of seal 19 and runs through seal 19 and the tube connector 8 docked with wind conveying pipe 10, completes and the plugging into of wind conveying pipe 10.
Tube connector 8 extend in lautertuns 1, and it is highly not more than lautertuns 1 height; The sidewall of lautertuns 1 is circular access node structure, and the chien shih lautertuns 1 of the lateral wall of the madial wall of lautertuns 1 and tube connector 8 forms loop configuration, and filtered fluid is just stored in this loop configuration.The gas entered from wind conveying pipe 10 like this flows to both sides through comb gas dish 4 Hou Shiyou center, and gas is uniform when entering filtered fluid.
Lautertuns 1 top is disposed with the first gim peg 2, annular draw-in groove 20 and the second draw-in groove 21 from the bottom to top, two draw-in grooves are annular slot, be similar to ledge structure, arrange with lautertuns 1 concentric, the size of draw-in groove is just in time can put into comb gas dish 4 and adsorbent equipment is advisable.What diameter was less is the first draw-in groove 20, for laying comb gas dish 4, there is the connector 11 docked with tube connector 8 lower end of comb gas dish 4, connector 11 and tube connector 8 can tightly dock, and rubber ring can be set seal, make the gas through wind conveying pipe 10, tube connector 8 all enter into comb gas dish 4 by connector 11.
The position of the second draw-in groove 21 is top compared with the first draw-in groove 20, and diameter is also large than the first draw-in groove 20, and the second draw-in groove 21 places adsorbent equipment, adsorbent equipment is also circular configuration, as the activated carbon adsorption layer 5 of circle, can entirety cover on the second draw-in groove 21, gas can only pass through from adsorbent equipment.Gas after filter discharges comb gas dish 4 from the second wireway 3 comb gas dish 4, then by after the absorption of adsorbent equipment, is discharged in ambient air.
Comb gas dish 4 and adsorbent equipment are fixed by the gim peg 2 on the first draw-in groove 20 and the second draw-in groove 21, ensure stability during its work.
Air extractor adopts spiral case blower fan in this programme, by scroll casing shape cabin 15, is arranged on the turbine 14 that dual-axle motor 16 on the steel plate of spiral case central cross-section and symmetry be arranged on dual-axle motor 16 and forms; The lower end of cabin 15 or lateral opening, as the air inlet of blower fan.Spiral case blower fan has good suction performance, meets the demand of this device.Because blower fan entirety is heavier, be difficult to be supported by wind conveying pipe 10, therefore on motor 16, be provided with fixed fastener 13, this fixed fastener 13 can be mounted on the cat ladder 12 of inspection shaft 7 inside, utilizes the structure of inspection shaft 7 self to support blower fan.
Provide an embodiment of this device below:
See Fig. 1, Fig. 2, it is this device scheme of installation in inspection shaft 7.
The first step, completes pre-mounted part outside inspection shaft 7: in scroll casing shape cabin 15, dual-axle motor 16 fixed by section center steel plate, be connected to by turbine 14 respectively on the axle of dual-axle motor 16, complete the assembling of blower fan.Then more piece wind conveying pipe 10 is connected by flange 9, use rubber sheet gasket to guarantee when flange 9 is connected with wind conveying pipe 10 airtight; Wind conveying pipe 10 joint number and length are selected to determine according to inspection shaft 7 degree of depth, and guarantee that the interface of upper end final section wind conveying pipe 10 cannot coil and leave enough distances to dock with the tube connector 8 in upper seal 19 apart from well head by orchid 9, and then the blower fan cabin 15 of assembling is connected with the wind conveying pipe 10 assembled, complete preliminary installation.
Second step, puts into inspection shaft 7 by the mode of manpower or mechanical hoisting by above-mentioned pre-mounted part, notices the wire 18 of motor 16, guarantees that the individual steel fixed fastener 13 at blower fan back tightly fastens on the reinforcing bar of cat ladder 12 during lifting.After accurate installation, wind conveying pipe 10 should be placed in inspection shaft 7 center position, and fixation is played in fixed fastener 13 pairs of device bottoms, realizes the load-bearing to whole device by cat ladder 12.
3rd step, installs apex seal 19, first makes the tube connector 8 on seal 19 and wind conveying pipe 10 upper end one section of wind conveying pipe 10 of orchid 9 dock, makes the interface of wind conveying pipe 10 interior, and do closed processes with pad; Secondly the chassis of seal 19 will accurately snap in inspection shaft 7 well lid draw-in groove, guarantees that the wire 18 of motor 16 passes from seal 19 edge before this; Pour certain density filtered fluid in lautertuns 1 on the most backward seal 19, the height of filtered fluid can not cover interface.
4th step, comb gas dish 4 is installed, install before check the first wireway 6 and the second wireway 3 whether unobstructed, guarantee unobstructed after the connector 11 of comb gas dish 4 is docked with the tube connector 8 on seal 19, and make the first wireway 6 insert in filtered fluid, the connector 11 of comb gas dish 4 interior, and makes closed processes.Comb gas dish 4 edge is held on first draw-in groove 20 at lautertuns 1 top, and the gim peg 2 of both sides of screwing on makes comb gas dish 4 be fixed on lautertuns 1.
5th step, the second draw-in groove 21 of lautertuns 1 is put into circular activated carbon adsorption layer 5, and the gim peg 2 of same both sides is fixed; Then connect wire 18 and the portable power source 22 of motor 16, namely opening power device brings into operation.
See Fig. 1, Fig. 2, explain this plant running schematic diagram.Open portable power source 22 switch after connecting the wire 18 of motor 16, under the driving of electric power, dual-axle motor 16 drives turbine 14 High Rotation Speed, produces powerful suction, turbine 14 cross section and sewage conduct cross-section parallel, and air intake is unobstructed; Scroll casing shape cabin 15 designs, and effectively reduce air intake resistance and form negative pressure at turbine 14 air inlet, suction air volume is far longer than common fan impeller.
Inspection shaft 7 well head is undertaken airtight by seal 19, and blower fan has swabbing action to the ducted gas between adjacent several inspection shaft 7 simultaneously.The gas of coming in from air inlet is transported to well by wind conveying pipe 10, tube connector 8, wind conveying pipe 10 can adopt the prefabricated rectangle metallic conduit of fixing unit length L=45cm, 30cm, corrosion-resistant, intensity is high, indeformable, hypomere pipe ends is all that flange 9 coils, and uppermost pipeline one end has flange 9 dish to be conveniently connected with tube connector 8; Secondly can select splicing joint number according to the different depth of inspection shaft 7, applicability is wide, and flexibility is high.
Gas goes out well through guide duct and enters in the inner chamber of comb gas dish 4 through sudden expansion, is decelerated and fills in the lautertuns 1 of limewash by the first wireway 6 being arranged on comb gas bottom surface intensive by gas distribution importing, here complete H at this flow at high speed gas
2s, NH
3absorption;
During for preventing long, high velocity air impact comb gas dish 4 inner chamber makes it be subjected to displacement, and comb gas edge must be made to be held on the first draw-in groove 20 of lautertuns 1, and the gim peg 2 of both sides of screwing on.Purified gas overflows from limewash, flows out comb gas by the second wireway 3, and the second wireway 3 and comb gas dish 4 inner chamber insulating space, the gas of derivation completes CH through activated carbon adsorption layer 5
4after absorption, innocuous gas enters air.Also for ease of and prevent activated adoption layer of charcoal by stripping, need to fix with the gim peg 2 of both sides.
See Fig. 3, it is device each several part composition structure chart.Can being assembled into one inspection shaft 7 gas suction purifier primarily of: blower fan, guide duct, seal 19, comb gas dish 4 and portable power source 22 form.Wherein, power core part is provided to be spiral case blower fan, each air inlet 17 in blower fan both sides; Wind conveying pipe 10 is air supply ducts, and connect spiral case blower fan and seal 19, there is the effect of airtight inspection shaft 7 on seal 19 chassis.Comb gas dish 4 is the vitals that whole device gas transfers, and the gas that comb gas dish 4 is shunted imports in lautertuns 1 and filters pernicious gas, flows out again, carry out last charcoal absorption from comb gas dish 4.Portable power source 22 provides electric energy for blower fan, easy to carry, energy-conserving and environment-protective; Also directly fixed power source can be connected according to surrounding environment.
Be turbine 14 motor 16 disassembly diagram see Fig. 4 (a), figure, wherein dual-axle motor 16 fuselage is arranged on the steel plate of spiral case central cross-section, and both sides turbine 14 is symmetrical, is arranged in motor 16 rotating shaft.Turbine 14 gas grid are ribs of turbine 14, and be flat-shaped rigid plastics, width is about 2cm.When turbine 14 rotates, gas grid speed convolution air, sends into spiral case, due to the aerodynamic structures that volute type blower fan is good, makes air inlet form negative pressure, so gas flow rate is large, and the gas in sewage conduct is aspirated away rapidly.
Be comb gas dish 4 drawing see Fig. 4 (b) and Fig. 4 (c), figure.This part is flow slowing down, transfer, the device of break-in.Wherein the first wireway 6 and the intercommunication of comb gas dish 4 inner chamber, and the second wireway 3 combs gas dish 4 intracavity space independently.Because the second wireway 3 number is less than the first wireway 6, therefore the caliber of the second wireway 3 should be greater than the caliber of the first wireway 6.Upward flowing air flows into comb gas dish 4 inner chamber from guide duct, large area intensive first all tracheae effectively reduce gas flow rate, gas momentum in importing filtered fluid is reduced, upwards overflowing in the form of bubbles after gas purification, then isolated by the second wireway 3 and flow to the last absorption process in upper end through comb gas dish 4 inner chamber.
See the drawing that Fig. 4 (d), figure are seal 19.Whole seal 19 is metal material, and the chassis size of seal 19 is with inspection shaft 7 well lid, and effect is that leakage check well 7 prevents gas backstreaming from entering in well.The tube connector 8 of seal 19 connects the upper end of wind conveying pipe 10, especially, and it and cat ladder 12 acting in conjunction of down-hole portion thus play the effect retraining wind conveying pipe 10 position.Tube connector 8 and the lautertuns 1 of seal 19 surround loop configuration jointly, in order to contain certain density limewash.Lautertuns 1 there is two-stage ladder: the first draw-in groove 20 and the second draw-in groove 21, placed comb gas dish 4 and activated carbon adsorption layer 5; For preventing out gas body to the impact of combing gas dish 4 and activated carbon adsorption layer 5, must be fixed in both sides with gim peg 2.
Claims (10)
1. the innoxious removal device of urban sewage pipe pernicious gas, it is characterized in that, comprise the air extractor be arranged in inspection shaft (7), pernicious gas in inspection shaft (7) is extracted out and is passed through wind conveying pipe (10) and guides in the gas processing device being arranged at inspection shaft (7) well head by air extractor, gas processing device comprises filter and adsorbent equipment, pernicious gas processes pernicious gas through filter and adsorbent equipment successively, and the gas after process enters in air.
2. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 1, it is characterized in that, be provided with the hollow comb gas dish (4) be connected with wind conveying pipe (10) in described gas processing device, by comb gas dish (4), pernicious gas imported filter, adsorbent equipment successively.
3. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 2, it is characterized in that, after pernicious gas in wind conveying pipe (10) enters comb gas dish (4), first by entering in filter, then again through adsorbent equipment with comb gas dish (4) through the first wireway (6) be connected.
4. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 3, it is characterized in that, described filter is sedimeter, described the first wireway (6) extend in filter, pernicious gas by the first wireway (6) enter filter and filter after, discharge filter by the second wireway (3) be arranged on comb gas dish (4) again, the second wireway (3) is not communicated with the first wireway (6) with comb gas dish (4).
5. the innoxious removal device of urban sewage pipe pernicious gas as described in claim arbitrary in claim 2 to 4, it is characterized in that, described filter comprise for leakage check well (7) well head and with the seal (19) of wind conveying pipe (10) company of passing through, seal (19) is provided with lautertuns (1).
6. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 5, it is characterized in that, the sidewall of the lautertuns (1) on described seal (19) is circular configuration, the tube connector (8) that seal (19) docks with wind conveying pipe (10) is provided through in seal (19) center, tube connector (8) stretches in lautertuns (1), forms loop configuration between tube connector (8) sidewall and lautertuns (1) sidewall.
7. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 5, it is characterized in that, described lautertuns (1) top is disposed with from the bottom to top with gim peg (2), annular the first draw-in groove (20) and the second draw-in groove (21), is respectively used to install comb gas dish (4) and adsorbent equipment.
8. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 1, it is characterized in that, described air extractor comprises the cabin (15) be arranged in inspection shaft (7), cabin (15) lower end or side opening are provided with air inlet (17) and are arranged on inspection shaft (7) ordinary water level, are provided with turbine (14) and for driving the motor (16) of turbine (14) in cabin (15); Motor (16) is provided with fixed fastener (13), this fixed fastener (13) may be stuck on the inner cat ladder (12) of inspection shaft (7).
9. the innoxious removal device of urban sewage pipe pernicious gas as claimed in claim 8, it is characterized in that, the profile of described cabin (15) is scroll casing shape, in cabin (15), motor (16) adopts dual-axle motor, motor (16) is arranged on the steel plate of spiral case central cross-section, and turbine (14) symmetry is arranged in motor (16) rotating shaft.
10., as claim requires the innoxious removal device of urban sewage pipe pernicious gas as described in 5, it is characterized in that, be placed with limewash in described lautertuns (1), described adsorbent equipment is activated carbon adsorption layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654272.3A CN104492238B (en) | 2014-11-17 | 2014-11-17 | A kind of innoxious removal device of urban sewage pipe obnoxious flavour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654272.3A CN104492238B (en) | 2014-11-17 | 2014-11-17 | A kind of innoxious removal device of urban sewage pipe obnoxious flavour |
Publications (2)
| Publication Number | Publication Date |
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| CN104492238A true CN104492238A (en) | 2015-04-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105664664A (en) * | 2016-04-08 | 2016-06-15 | 安徽宝昱电子科技有限公司 | Toxic gas adsorbing device for sewer |
| CN106823679A (en) * | 2017-01-16 | 2017-06-13 | 四川大学 | A kind of sewer harmful gas purifying device |
| CN108508157A (en) * | 2018-04-18 | 2018-09-07 | 上海市政工程设计研究总院（集团）有限公司 | A kind of confluence of rainwater and sewage system foul smell detection device and its detection method |
| CN109482046A (en) * | 2018-12-07 | 2019-03-19 | 中国矿业大学(北京) | A kind of explosion-proof anti-poisoning device for the maintenance of wastewater containing phenol and cyanide sewer catch basin |
| CN111058526A (en) * | 2020-01-07 | 2020-04-24 | 龙游欣沽通风设备有限公司 | Ventilation device used during maintenance of urban sewer |
| CN111318104A (en) * | 2020-03-20 | 2020-06-23 | 王海维 | Harmless discharge processor for toxic and harmful gas in sewer well and sewage well |
| CN113877410A (en) * | 2020-07-02 | 2022-01-04 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
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| CN103230737A (en) * | 2013-05-13 | 2013-08-07 | 达州军华油田工程服务有限公司 | Device and process for performing purification treatment on stinky tail gas in waste water of gas production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105664664A (en) * | 2016-04-08 | 2016-06-15 | 安徽宝昱电子科技有限公司 | Toxic gas adsorbing device for sewer |
| CN106823679A (en) * | 2017-01-16 | 2017-06-13 | 四川大学 | A kind of sewer harmful gas purifying device |
| CN108508157A (en) * | 2018-04-18 | 2018-09-07 | 上海市政工程设计研究总院（集团）有限公司 | A kind of confluence of rainwater and sewage system foul smell detection device and its detection method |
| CN109482046A (en) * | 2018-12-07 | 2019-03-19 | 中国矿业大学(北京) | A kind of explosion-proof anti-poisoning device for the maintenance of wastewater containing phenol and cyanide sewer catch basin |
| CN111058526A (en) * | 2020-01-07 | 2020-04-24 | 龙游欣沽通风设备有限公司 | Ventilation device used during maintenance of urban sewer |
| CN111318104A (en) * | 2020-03-20 | 2020-06-23 | 王海维 | Harmless discharge processor for toxic and harmful gas in sewer well and sewage well |
| CN113877410A (en) * | 2020-07-02 | 2022-01-04 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
| CN113877410B (en) * | 2020-07-02 | 2024-05-07 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage collection and transportation system |
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