CN105597503A - Novel marsh gas pretreatment device - Google Patents
Novel marsh gas pretreatment device Download PDFInfo
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- CN105597503A CN105597503A CN201610058081.XA CN201610058081A CN105597503A CN 105597503 A CN105597503 A CN 105597503A CN 201610058081 A CN201610058081 A CN 201610058081A CN 105597503 A CN105597503 A CN 105597503A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- 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
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- 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
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
- B01D53/526—Mixtures of hydrogen sulfide and carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/104—Carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/24—Hydrocarbons
- B01D2256/245—Methane
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/05—Biogas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Abstract
The invention discloses a novel marsh gas pretreatment device which comprises a filter tank. The filter tank is connected with a marsh gas collection tank. Marsh gas is collected from the marsh gas collection tank, and marsh gas in the marsh gas collection tank is usually extracted through a fan and infiltrated to the filter tank. The filter tank comprises a tank body. A partition plate for dividing the tank body into an upper part and a lower part is arranged in the tank body. An opening is reserved in the middle of the partition plate. An air inlet cavity is arranged at the bottom of the tank body. A primary filter chamber is arranged on the upper side of the air inlet cavity. A secondary filter chamber is arranged above the partition plate. A condensation drying chamber is arranged above the secondary filter chamber. A vibration frame is further arranged in the air inlet cavity. The novel marsh gas pretreatment device has the advantages that design is reasonable, the structure is simple, gas entering the device is divided into two flows due to the fact that the independent air inlet cavity is arranged, one flow of gas is exhausted and changed to be in irregular flow direction through an air exhaust hole formed in a spiral air inlet pipe and then collides and interferes with the other flow of gas to achieve the speed reduction effect, natural clinoptilolite is arranged in a baffle to be used as an adsorbing agent, and the effect of primary purification and filtration on marsh gas is achieved.
Description
Technical field
The present invention relates to biomass energy and develop field, particularly a kind of marsh gas pretreatment unit.
Background technology
Biogas is a kind of fuel gas with higher thermal value, and main component is methane (CH4) and carbon dioxide (CO2)With a small amount of nitrogen (N2), hydrogen (H2), oxygen (O2), hydrogen sulfide (H2The gas such as S), wherein methane content is 45%～60%.Compared with other combustion gas, the biogas capability of antidetonance is better, is a kind of well clean fuel, mostly utilizes traditionally biogas to getWarm, cooking and illumination. Along with the continuous increase of biogas output, the middle and high end of biogas utilizes approach constantly to expand, and marsh gas purifying is carriedAfter pure, can be used for cogeneration of heat and power, be incorporated to gas distributing system, vehicle fuel, industrial chemicals and fuel cell etc. Sweden in 1992The Laholm biogas plant setting up is the factory that Sweden's the first is incorporated to biological methane gas distributing system. China is in the thirties in 20th centuryRural area just starts to build underground methane-generating pit, and to the end of the year 2008, national domestic methane tank has reached more than 3,000 ten thousand mouthfuls, livestock and poultry farm, foodThe big-and-middle-sized biogas engineerings such as product processing, brewery, municipal sewage plant reach 1600 many places, produce biogas per year and total over 14,000,000,000m3, contrast China natural gas consumption 70,000,000,000 m in 20083, this part energy is considerable. At present, a large amount of biogas utilizations alsoBe taking low-grade heat utilization as main, along with centralized biogas engineering development, single methane engineering methane output constantly increasesGreatly, generating and higher, the energy of vehicle fuel homenergic utilization rate processed of purifying are exported more technology and are needed badly and be promoted.
Biogas is as a kind of natural energy source, and biogas, after the pretreatment such as desulfurization, dehydration, dedusting, pressurization, enters transformation and inhalesAdsorption device, by boosting, adsorb, along putting, inverse put and the operation such as vacuumize after, methane is discharged by pressure-variable adsorption tower top, and conductGas product is collected, and pipeline delivers into gas ductwork or the outward transport of high pressure tank car, and carbon dioxide and nitrogen etc. is adsorbed component, desorbAfter by discharging at the bottom of tower. But because causing a large amount of discharges of carbon dioxide, the various reasons of social development there are greenhouse effects, nearNian Laiqi such as: tellurian disease and pest increases; Sea level rise; Adverse weather, Marine Storm Genesis increases; Dry land, desertChange area and increase, even turn cold winter and wait the more and more obvious of harm embodiment. In addition traditional marsh gas pretreatment unit becauseThe relation of its operation principle, need to carry out repeated multiple times processing to gas and cause cumulative volume very large.
Summary of the invention
In order to address the above problem, the invention provides a kind of marsh gas pretreatment unit, locate in advance as methane purificationPrimary filter in reason process, comprises filtering tank, and described filtering tank is connected with biogas air collector, from described biogas gas collectionIn tank, collect biogas, conventionally with blower fan, the biogas in biogas air collector is extracted out, squeeze in described filtering tank described filtering tank bagDraw together tank body, be provided with the dividing plate that described tank body is separated up and down in described tank body, opening is left at described dividing plate middle part; Described dividing plateTilt to both sides along described opening, become " V " font, described dividing plate upper surface is the cambered surface that middle part raises up, described dividing plateBoth sides are provided with guiding gutter, on described dividing plate, velocity-reducing chamber are set, and velocity-reducing chamber is one and supplies biogas by also reaching therein decelerationThe chamber of object, described opening is communicated with the inlet channel of described velocity-reducing chamber. Described tank base arranges inlet chamber, described air inletChamber upside arranges single filter chamber, and described dividing plate top arranges cascade filtration chamber; In described inlet chamber, be provided with baffle mazeAnd the air inlet pipe of disc type. Top, described cascade filtration chamber is provided with to get rid of drips device and support, in described support two ends and described tank bodyWall is fixedly connected with, described in get rid of drip a device be connected with described support, be arranged on the central axis of described tank body. In described tank body, compriseHorizontally disposed hothouse dividing plate, described hothouse dividing plate is arranged on top, described cascade filtration chamber, solid with described inner tank wallFixed connection, described hothouse dividing plate upside arranges condensation hothouse.
Described velocity-reducing chamber comprises velocity-reducing chamber air inlet pipe, and described velocity-reducing chamber air inlet pipe is spirality, through velocity-reducing chamber baffle plate, and instituteState velocity-reducing chamber baffle plate and be crisscross arranged in described velocity-reducing chamber, and only have one end to be fixedly connected with the inwall of described velocity-reducing chamber, described inVelocity-reducing chamber bottom is connected with described dividing plate, and top arranges loose gas-bearing formation, and the inlet end of described opening and described velocity-reducing chamber air inlet pipe connectsLogical, the other end sealing of described velocity-reducing chamber air inlet pipe, is distributed with steam vent on the body of described velocity-reducing chamber air inlet pipe; In order to gatherThe gas of single filter chamber, thus described dividing plate is arranged to into " V " font, and the opening arranging by its middle part makes gasFlow out, but therefore structure causes gas flow rate to be accelerated, so the gas that velocity-reducing chamber will speed up is set at the opening upside of dividing plateBody slows down again, to ensure the filter effect of gas.
Described air inlet pipe is spirality and through described baffle plate, described baffle plate only has the chamber wall company of one end and described inlet chamberConnect, what described baffle plate interlocked up and down is arranged in described inlet chamber, and described baffle plate is grid framework, in described framework, modification is setClinoptilolite adsorbent, modified clinoptilolite adsorbent mainly plays the effect of absorption to nitrogen. Described in described air inlet pipe is passedBaffle plate, described inlet chamber arranged outside air inlet, described air inlet one end is communicated with described biogas air collector, and the other end connects threeLogical, the other two ends of described threeway, one end is connected with described air inlet pipe, and the other end directly passes in described inlet chamber; Described air inletOn pipe, be distributed with steam vent, described inlet chamber top arranges some passages; Because biogas is slowly to produce by chemical reaction, so it is very little conventionally to collect the interior pressure of the air collector of biogas own, therefore need to be by blower fan by the biogas in air collectorExtract out, consider the effect of the single filter in order to improve biogas, by the inlet chamber of special construction, the biogas entering is carried outSlow down, biogas is divided into two parts after entering described threeway by described air inlet, and a part enters described air inlet pipe, another portionDivide and directly enter in described inlet chamber, will enter gas distribution herein and also play deceleration effect, enter in described air inlet pipeBiogas, in the process of advancing, the steam vent from body is discharged, and because air inlet pipe is spirality, so the biogas side dischargingTo being irregular; On the other hand, the biogas of the inlet chamber directly entering, under the effect of baffle plate, its Speed Reduction, simultaneously withThe abnormal flow of discharging in air inlet pipe to biogas collision, speed further reduces, and is undertaken preliminary by the adsorbent in baffle plateAbsorption, wherein the foreign gas such as nitrogen, first by a preliminary absorption part, enters via the passage at described inlet chamber top afterwardsIn single filter chamber.
Described single filter chamber is provided with single filter liquid pool, and described single filter liquid pool is arranged on described inlet chamberSide, described single filter liquid pool bottom arranges gas blow head, and the described passage at described gas blow head and described inlet chamber top passes throughTracheae connects; Described gas blow head is cylindrical, is distributed with fine and closely woven aperture on it, selects the alkaline-resisting materials such as plastics, resin, glassMake. Play the effect that the biogas entering is dispersed into tiny bubble, improve the effect of gas filtration effect.
Described cascade filtration chamber is provided with the cascade filtration liquid pool being connected with described tank body madial wall, described cascade filtration liquidBottom, pond arranges ultrasonic transducer; Described cascade filtration liquid pool edge is a little more than described loose gas-bearing formation. Described loose gas-bearing formation with described inGas blow head adopts same material to make, and the aperture that gathers it on plays the effect of dispersion and mitigation of gases flow velocity.
Be preferably, described cascade filtration liquid pool edge is higher than described loose gas-bearing formation surface.
The filtered fluid using in described single filter liquid pool is sodium hydroxide solution, in described cascade filtration liquid pool, usesFiltered fluid is aqua calcis. In the time that biogas enters in described single filter liquid pool, hydrogen sulfide wherein and titanium dioxideCarbon reacts and is absorbed with filtered fluid.
Described cascade filtration liquid pool is annular, and described ultrasonic transducer arranges four, is evenly distributed in described secondary mistakeReservoir bottom. , in the time arriving described dividing plate, gather along the direction of described dividing plate via single filter liquid pool gas upwardsTo the opening part at its middle part. Enter the upper space of described dividing plate from opening part. Described ultrasonic transducer is by described secondary mistakeAqua calcis atomization in reservoir, the aqua calcis of atomization just can overflow described cascade filtration liquid pool, and from instituteThe biogas of stating in dividing plate opening out reacts, because be the calcium hydroxide of atomization, and loop configuration can ensure atomizationAqua calcis concentrate and fall from annular center opening part, biogas is again to gather row after velocity-reducing chamber slows down by opening againGo out, therefore can play well to carbon dioxide absorption effect.
The described tank wall of described cascade filtration liquid pool top is provided with can observe described cascade filtration liquid poolObservation window. Can observe the liquid situation of cascade filtration liquid pool by observation window, because calcium carbonate is white precipitate, bicarbonateCalcium and aqua calcis are colourless, are colourless so use the liquid in initial stage cascade filtration liquid pool at aqua calcis,Have white precipitate when using after a period of time, when white precipitate is gradually reduced to while not having, inner filtered fluid base is describedThis has become calcium bicarbonate solution, can take out as byproduct, then adds new calcium hydroxide and uses as filtered fluid.
Described getting rid of drip a device and comprise driving mechanism be made up of motor and gear, gets rid of a device described in described driving mechanism connectsMobile jib, the central axis of described mobile jib is provided with connecting rod, remainder hollow, described connecting rod is through described support and described drivingThe driving shaft of mechanism connects; Described mobile jib bilateral symmetry arranges some cross bars, and described cross bar is hollow pipe, and with described mobile jibInternal communication; The outboard end of described cross bar arranges centrifugal drying and drips plug;
Described centrifugal drying drips plug arranged outside and gets rid of piece, described in get rid of the cone of piece inner side and conical plug at the bottom of and one end of centrifugal connecting rod fixConnect, described centrifugal connecting rod is arranged on described conical plug both sides, and the other end of described centrifugal connecting rod is plugged in bar cover, described fromBetween heart connecting rod and described bar cover, be connected by spring, described bar cover is fixedly connected with the outboard end of described cross bar;
In described support, arrange to get rid of the described mobile jib that drips device described in promising and provide the feed pipe of liquid, described feed pipe to connect to get rid of and dripDevice water pump, its water side is arranged on described mobile jib upside, and water inlet end is arranged on described cascade filtration liquid pool bottom. Drip device by getting rid ofWater pump is drawn into the filtered fluid in cascade filtration liquid pool in mobile jib, and then, under the effect of driving mechanism, get rid of and drip device rotation, whenAfter rotating speed improves, the piece that gets rid of that centrifugal drying drips plug drips the outer side shifting of device to getting rid of under the effect of centrifugal force, drives its inner sideConical plug and cross bar depart from, and are thrown out of via cross bar at the filtered fluid of the process mobile jib inside rotating, and the filtered fluid throwing away clashes intoAt the vertex of a cone of conical plug, because the relation of vertex of a cone shape is clashed into and made filtered fluid be dispersed into droplet, throw away thereby expanded liquidArea; Liquid dispersion is become to drop, compare the atomizing effect of atomizer, the volume of this drop is larger, with atomization filtered fluidBe combined with carbon dioxide absorption better effects if. No matter the drop throwing away is to get rid of to cascade filtration liquid pool, still gets rid of to belowDividing plate on, can be re-used.
Described single filter liquid pool is interconnected with the one-level liquid-adding cell bottom that is arranged at described tank body outside, described secondaryFilter liquid pool and be communicated with the secondary liquid-adding cell bottom that is arranged at described tank body outside, a described secondary liquid-adding cell is provided with top cover.By a secondary liquid-adding cell in described tank body outside, the amount of solution that can observe in a cascade filtration liquid pool is how many, andCan be conveniently from here to adding a cascade filtration liquid pool or extracting the solution needing out. Top cover prevents that dust foreign material etc. from falling intoIn one cascade filtration liquid pool.
The below, junction of described dividing plate and described tank body arranges and connects liquid box. Enter cascade filtration chamber via described dividing plateBiogas, becomes calcium carbonate afterwards with the calcium hydroxide reaction of atomization, because calcium carbonate is heavier, so can drop down onto the upper of described dividing plateSurface, and calcium carbonate can continue to become calcium bicarbonate with carbon dioxide reaction. In addition described dividing plate is centered by opening, to describedThe sidewall of tank body becomes " V " font and tilts, and described dividing plate upper surface is cambered surface, when calcium carbonate or calcium bicarbonate run up to necessarilyAfter amount, can flow down along the guiding gutter of described dividing plate, described in entering, connect in liquid box.
Described cascade filtration liquid pool upside is provided with water pump, and described water pump connects drainage tube, and described drainage tube water inlet end is establishedDescribed in being placed in, connect liquid box bottom, water side is placed in described cascade filtration liquid pool top. Described connecing in liquid box has from described dividing plateThe calcium carbonate of upper collection and calcium bicarbonate, tosca, in bottom, connects liquid box described in the inlet segment of described drainage tube is arranged onBottom, can be withdrawn into calcium carbonate soln in described cascade filtration liquid pool by described water pump because calcium carbonate can with dioxyChange carbon continuation reaction and become calcium bicarbonate, so can continue the filtration as carbon dioxide via described ultrasonic transducer atomizationLiquid uses. Use as the filtered fluid of carbon dioxide via described ultrasonic transducer atomization. So can make calcium hydroxide moltenLiquid makes full use of. Finally reclaim calcium bicarbonate solution as byproduct.
In described condensation hothouse, be provided with hothouse tracheae, described hothouse tracheae is coil pipe, and its two ends are all through instituteStating hothouse dividing plate, to extend to described cascade filtration indoor, and two ends extend to the indoor part of described cascade filtration and are set to loudspeakerMouthful, on described hothouse tracheae body, being distributed with pore, both sides arrange semiconductor cooling condenser. In the indoor natural pond of described cascade filtrationGas stops because of hothouse dividing plate, can only extend to the indoor horn mouth of described cascade filtration by hothouse tracheae and enter,And described hothouse tracheae is coil pipe, on it, be distributed with pore, be again simultaneously from two ends air inlet, so in hothouse tracheaeAfter two strands of gases meet, just can discharge from pore uniformly, form one uniform air-flow. At described semiconductor cooling condenserUnder refrigeration, thus can condense because of the effect of the cool condenser of described semiconductor by the wet gas in biogas, reach with thisDry object, facilitates the carrying out of follow-up biogas processing. On described hothouse dividing plate, be provided with hothouse guiding gutter, the liquid of condensationBody enters in the cascade filtration liquid pool of hothouse mozzle inflow below along hothouse guiding gutter. Hothouse tracheae dish becomes circleShape, circle centre position arranges water conservancy diversion wireway, and described water conservancy diversion wireway extends to described cascade filtration liquid through described hothouse dividing plateChi Zhong. Even because the relation that temperature reduces causes having in the present described hothouse tracheae of liquid discharge of partial condensation, enteringUnder the effect of biogas, directly enter cascade filtration liquid pool via water conservancy diversion wireway. Deng reclaim in cascade filtration liquid pool liquid timePut away together just passable.
Described semiconductor cooling condenser is provided with ultrasonic wave shake plate towards the one side of described hothouse tracheae; Ultrasonic wave shake plate producesRaw ultrasonic vibration, can avoid described semiconductor cooling condenser surface because of the wet gas frosting of condensing, thereby affect refrigeration, instituteState hothouse tracheae upside and be provided with vibrations frame, described vibrations frame comprises horizontally disposed cross bar and is arranged on described cross bar both sidesVertical rod composition door type frame, described vertical rod is fixedly connected on described hothouse dividing plate, the described cross bar following table of described vibrations frameFace is distributed with projection, and described cross bar upper surface center is provided with vibration motor, and described cross bar is made with elastomeric material. Described shakeMoving motor shakes the cross bar that passes to vibrations frame after opening, and makes, so cross bar is by vibrating effect because cross bar is elastomeric materialAmplify, vibrations pass to the projection of cross bar lower surface, the described hothouse tracheae of vibrations being continued by projection, thus avoid liquidBe attached to for a long time hothouse inner surface of trachea, cause frosting, affect gas and pass through.
Vibrations frame also can, by the parallel jolting plate that connects to form of multiple described door type frames, shake area thereby increase, and adds macroseismMoving effect.
Described tank body upper surface connects solar charging panel, and described solar charging panel connects battery, with described water pumpElectrical connection.
Improved primary filter has good filter effect, can simplify later stage adsorption process required useEquipment, is that whole installation is simplified, and volume reduces, and convenient transportation is realized between town and country with Container Transport to each biogas collection pointGo to collect and purifying biogas.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: the present invention is reasonable in design, simple in structure, by establishingPut independent inlet chamber, make the gas entering be divided into two strands, make wherein one gas by the steam vent arranging on spiral air inletBody is discharged and is become the irregular flow direction, mutually collides and disturbs the effect that reaches deceleration with another strand of gas, in baffle plate, arrangesUsing natural clinoptilolite, as adsorbent, plays the effect that biogas preliminary purification is filtered. By gas blow head, biogas is disperseed, improveThe effect of absorbing and filtering. " V " character form structure and opening can be gathered the middle part of biogas to cascade filtration chamber, and through velocity-reducing chamberReduce gas flow rate, the filtered fluid after atomization is fallen and can fully be contacted with biogas by annular center opening, simultaneously in conjunction with getting rid ofDrip device filtered fluid is thrown away with the form of droplet, filter and be also combined with atomization, reach best effect, in addition water receivingGroove, water pump, drainage tube are used as absorbing carbon dioxide in conjunction with making again because react the calcium carbonate becoming, and finally become bicarbonateCalcium byproduct, the problem of having avoided traditional methane purification method carbon dioxide need to be discharged. In addition improved elementary mistakeFilter device has good filter effect, and condensation hothouse carries out cooling and drying to gas, and vibration motor and ultrasonic wave shake plate are avoidedThe frosting of condensation hothouse inner part affects result of use, more than can simplify the equipment of the required use of follow-up adsorption process, therebySingle unit system is simplified, and volume reduces, and convenient transportation is realized between town and country and gone to collect with Container Transport to each biogas collection pointAnd purifying biogas.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the present invention gets rid of a device structural representation.
Fig. 3 is that centrifugal drying of the present invention drips plug enlarged drawing.
Fig. 4 be the present invention get rid of drip a device internal liquid move towards schematic diagram.
Fig. 5 is hothouse tracheae coil arrangement schematic diagram of the present invention.
Fig. 6 is that hothouse tracheae of the present invention is in conjunction with vibrations frame schematic diagram.
Wherein, Reference numeral is: 1, tank body; 2, dividing plate; 3, opening; 4, inlet chamber; 5, air inlet pipe; 6, baffle plate; 7, ventilationHole; 8, single filter liquid pool; 9, loose starting; 10, cascade filtration liquid pool; 11, ultrasonic transducer; 12, one-level liquid-adding cell; 13,Secondary liquid-adding cell; 14, connect liquid box; 15, water pump; 16, drainage tube; 17, solar charging panel; 18, observation window; 21, velocity-reducing chamber;22, velocity-reducing chamber air inlet pipe; 23, velocity-reducing chamber baffle plate; 24, loose gas-bearing formation; 30, get rid of and drip device; 31, support; 32, centrifugal drying drips plug; 33, hairBrush; 34, get rid of and drip device water pump; 35, driving mechanism; 36, mobile jib; 37, cross bar; 41, get rid of piece; 42, conical plug; 43, centrifugal connecting rod;44, bar cover; 51, hothouse dividing plate; 52, hothouse tracheae; 53, pore; 54, semiconductor cooling condenser, 55, water conservancy diversion catheter; 60,Ultrasonic wave shake plate; 61, vibrations frame; 62, vibration motor.
Detailed description of the invention
For traditional methane purification be all by CO2 emission to atmosphere, and the larger problem of single unit system, thisInvention provides a kind of marsh gas pretreatment unit.
Embodiment mono-:
Referring to Fig. 1 to Fig. 6, the invention provides a kind of marsh gas pretreatment unit, in methane purification preprocessing processPrimary filter, comprise filtering tank, filtering tank is connected with biogas air collector, from biogas air collector, collects biogas, logicalConventional blower fan is extracted the biogas in biogas air collector out, squeezes in filtering tank, and filtering tank comprises tank body 1, in tank body 1, be provided with byThe dividing plate 2 that tank body 1 is separated up and down, opening 3 is left at dividing plate 2 middle parts; Dividing plate 2 tilts along opening 3 to both sides, becomes " V " font, everyPlate 2 upper surfaces are the cambered surface that middle part raises up, and dividing plate 2 both sides are provided with guiding gutter, and velocity-reducing chamber 21 is set on dividing plate 2, slow downChamber 21 be one for biogas by and reach therein the chamber of deceleration object, opening 3 is communicated with the inlet channel of velocity-reducing chamber 21.Tank body 1 bottom arranges inlet chamber 4, and inlet chamber 4 upsides arrange single filter chamber, and dividing plate 2 tops arrange cascade filtration chamber; Inlet chamberIn 4, be provided with baffle maze 6 and disc type air inlet pipe 5, top, cascade filtration chamber is provided with to get rid of drips device 30 and support 31, support 31Two ends are fixedly connected with tank body 1 inwall, get rid of a device 30 and are connected with support 31, are arranged on the central axis of tank body 1. In tank body 1Comprise horizontally disposed hothouse dividing plate 51, hothouse dividing plate 51 is arranged on top, cascade filtration chamber, connects with tank body 1 inwall is fixingConnect, hothouse dividing plate 51 upsides arrange condensation hothouse.
Velocity-reducing chamber 21 comprises velocity-reducing chamber air inlet pipe 22, and velocity-reducing chamber air inlet pipe 22 is spirality, through velocity-reducing chamber baffle plate 23, subtractsSpeed chamber baffle plate 23 is crisscross arranged in velocity-reducing chamber 21, and only has one end to be fixedly connected with the inwall of velocity-reducing chamber 21,21 ends of velocity-reducing chamberPortion is connected with dividing plate 2, and top arranges loose gas-bearing formation 24, and opening 3 is communicated with the inlet end of velocity-reducing chamber air inlet pipe 22, velocity-reducing chamber air inlet pipe22 other end sealing, is distributed with steam vent on the body of velocity-reducing chamber air inlet pipe 22; In order to gather the gas of single filter chamber, instituteDividing plate 2 is arranged to into " V " font, and by the opening 3 of its middle part setting, gas is flowed out, but therefore structure is ledCause gas flow rate and accelerate, again slow down so the gas that velocity-reducing chamber 21 will speed up is set at opening 3 upsides of dividing plate 2, to ensureThe filter effect of gas.
The air inlet pipe 5 of inlet chamber 4 interior settings is spiral disc type air inlet pipe and through baffle plate 6, baffle plate 6 only has one end and air inletThe chamber wall in chamber 4 connects, and baffle plate 6 is staggered being arranged in inlet chamber 4 up and down, and baffle plate 6 is by grid framework and be arranged in frameworkModified clinoptilolite composition, modified clinoptilolite plays the effect of adsorbent. Air inlet pipe 5 is through baffle plate 6, and establish in inlet chamber 4 outsidesPut air inlet, air inlet one end is communicated with biogas air collector, other end connecting tee, the other two ends of threeway, one end and air inlet pipe 5Connect, the other end directly passes in inlet chamber 4; In air inlet pipe 5, be distributed with steam vent, inlet chamber 4 tops arrange some passages7; Because biogas slowly produces by chemical reaction, so it is very little conventionally to collect the interior pressure of the air collector of biogas own,Therefore need to the biogas in air collector be extracted out by blower fan, consider the effect of the single filter in order to improve biogas, pass throughThe inlet chamber of special construction slows down the biogas entering, and biogas is divided into two parts, one after entering threeway by air inletPart enters air inlet pipe 5, and another part directly enters in inlet chamber 4, and will enter gas distribution herein and also play deceleration effect,Enter the biogas in air inlet pipe 5, in the process of advancing, the steam vent from body is discharged, and because air inlet pipe 5 is spiralitys,So the biogas direction of discharging is irregular; On the other hand, the biogas of the inlet chamber 4 directly entering, in the effect of baffle plate 6Under, its Speed Reduction, simultaneously with air inlet pipe 5 in the abnormal flow of discharging to biogas collision, speed further reduces, by baffle plateAdsorbent in 6 carries out preliminary absorption, and wherein the foreign gas such as nitrogen is first by a preliminary absorption part, afterwards via inlet chamberThe passage 7 at 4 tops enters into single filter chamber.
Single filter chamber is provided with single filter liquid pool 8, and single filter liquid pool 8 is arranged at inlet chamber 4 upsides, single filterLiquid pool 8 bottoms arrange gas blow head 9, and gas blow head 9 is connected by tracheae with the passage 7 at inlet chamber 4 tops; Gas blow head 9 is cylinderShape, is distributed with fine and closely woven aperture on it, select the alkaline-resisting materials such as plastics, resin, glass to make. Play the biogas entering is disperseedBecome the effect of tiny bubble, improve the effect of gas filtration effect.
Cascade filtration chamber is provided with the cascade filtration liquid pool 10 being connected with tank body 1 madial wall, cascade filtration liquid pool 10 bottomsUltrasonic transducer 11 is set; Cascade filtration liquid pool 10 edges are a little more than loose gas-bearing formation 24. Loose gas-bearing formation 24 adopts same with gas blow head 9Material make, the aperture that gathers it on, plays dispersion and the effect of mitigation of gases flow velocity.
Cascade filtration liquid pool 10 edges are higher than 40 centimeters, loose gas-bearing formation 24 surface.
The filtered fluid using in single filter liquid pool 8 is sodium hydroxide solution, the filtration using in cascade filtration liquid pool 10Liquid is aqua calcis. In the time that biogas enters in single filter liquid pool 8, hydrogen sulfide wherein and carbon dioxide and filtrationLiquid reaction is absorbed.
Cascade filtration liquid pool 10 is annular, and ultrasonic transducer 11 arranges four, is evenly distributed in cascade filtration liquid pool 10Bottom. In the time arriving dividing plate 2, gather opening to its middle part along the direction of dividing plate 2 via single filter liquid pool gas upwardsMouth 3 places. Enter the upper space of dividing plate 2 from opening part. Ultrasonic transducer 11 is by the calcium hydroxide in cascade filtration liquid pool 10Solution atomization, the aqua calcis of atomization just can overflow cascade filtration liquid pool 10, enters with biogas out from dividing plate 2 openingsRow reaction, because be the calcium hydroxide of atomization, and the aqua calcis that loop configuration can ensure atomization is from annular centerOpening part is concentrated and is fallen, and biogas is again to be gathered and discharged after velocity-reducing chamber 21 slows down by opening 3, therefore can play wellTo carbon dioxide absorption effect.
Tank body 1 sidewall of cascade filtration liquid pool 10 tops is provided with the observation window that can observe cascade filtration liquid pool 1018. Can observe the liquid situation of cascade filtration liquid pool 10 by observation window 18, because calcium carbonate is white precipitate, bicarbonateCalcium and aqua calcis are colourless, are colourless so use the liquid in initial stage cascade filtration liquid pool 10 at aqua calcis, have white precipitate when using after a period of time, when white precipitate is gradually reduced to while not having, inner filtered fluid is describedSubstantially become calcium bicarbonate solution, can take out as byproduct, then added new calcium hydroxide and make as filtered fluidWith.
Get rid of a device 30 and comprise the driving mechanism 35 being made up of motor and gear, driving mechanism 35 connects the mobile jib that gets rid of a device 3036, the central axis of mobile jib 36 is provided with connecting rod, remainder hollow, and connecting rod is the driving shaft with driving mechanism 35 through support 31Connect; Mobile jib 36 bilateral symmetry arrange 24 cross bars 37,12 of every sides, cross bar 37 is hollow pipe, and with the inside of mobile jib 36Be communicated with; The outboard end of cross bar 37 arranges centrifugal drying and drips plug 32;
Centrifugal drying drips plug 32 arranged outside and gets rid of piece 41, and at the bottom of getting rid of the cone of piece 41 inner sides and conical plug 42 and one end of centrifugal connecting rod 43 is consolidatedFixed connection, centrifugal connecting rod 43 is arranged on conical plug 42 both sides, and the other end of centrifugal connecting rod 43 is plugged in bar cover 44, centrifugal connecting rod43 and bar cover 44 between be connected by spring, bar cover 44 is fixedly connected with the outboard end of cross bar 37;
Support 31 is interior arrange promising get rid of the mobile jib 36 that drips device 30 and provide the feed pipe of liquid, feed pipe to connect to get rid of drip a device water pump 34,Its water side is arranged on mobile jib 36 upsides, and water inlet end is arranged on cascade filtration liquid pool 10 bottoms. Drip device water pump 34 by two by getting rid ofThe filtered fluid that level is filtered in liquid pool 10 is drawn in mobile jib 36, and then, under the effect of driving mechanism 35, get rid of a device 30 and rotate, whenAfter rotating speed improves, the piece 41 that gets rid of that centrifugal drying drips plug 32 drips the outer side shifting of device 30 to getting rid of under the effect of centrifugal force, drives itConical plug 42 and the cross bar 37 of inner side depart from, and are thrown out of via cross bar 37 at the filtered fluid of process mobile jib 36 inside that rotate, and get rid ofThe filtered fluid going out impinges upon the vertex of a cone of conical plug 42, because the relation of vertex of a cone shape, shock makes filtered fluid be dispersed into droplet, fromAnd expand the area that liquid throws away; Liquid dispersion is become to drop, compare the atomizing effect of atomizer, the volume of this dropBe combined with carbon dioxide absorption better effects if with atomization filtered fluid greatly. No matter the drop throwing away is to get rid of to cascade filtration liquid poolIn 10, still get rid of to the dividing plate 2 of below, can be re-used.
Single filter liquid pool 8 is interconnected with one-level liquid-adding cell 12 bottoms that are arranged at tank body 1 outside, cascade filtration liquid pool10 are communicated with secondary liquid-adding cell 13 bottoms that are arranged at tank body 1 outside, and a secondary liquid-adding cell is provided with top cover. Outside tank body 1One secondary liquid-adding cell of side, the amount of solution that can observe in a cascade filtration liquid pool is how many, and can be conveniently from hereTo adding in a cascade filtration liquid pool or extracting the solution needing out. Top cover prevents that dust foreign material etc. from falling into a cascade filtration liquid poolIn.
Dividing plate 2 arranges and connects liquid box 14 with the below, junction of tank body 1. Enter the biogas of cascade filtration chamber via dividing plate 2, withAfter the calcium hydroxide reaction of atomization, become calcium carbonate, because calcium carbonate is heavier, thus can drop down onto the upper surface of dividing plate 2, and carbonAcid calcium can continue to become calcium bicarbonate with carbon dioxide reaction. This external partition 2, centered by opening, becomes to the sidewall of tank body 1" V " font tilts, and dividing plate 2 upper surfaces are cambered surface, understands after a certain amount of along dividing plate 2 when calcium carbonate or calcium bicarbonate run up toGuiding gutter flows down, and enters and connects in liquid box 14.
Cascade filtration liquid pool 10 upsides are provided with water pump 15, and water pump 15 connects drainage tube 16, drainage tube 16 water inlet end settingsIn connecing liquid box 14 bottoms, water side is placed in cascade filtration liquid pool 10 tops. Connect in liquid box 14 and have from the carbonic acid of dividing plate 2 collectionsCalcium and calcium bicarbonate, tosca is in bottom, and the inlet segment of drainage tube 16 is arranged on and connects liquid box 14 bottoms, can be by calcium carbonateSolution is withdrawn in cascade filtration liquid pool 10 by water pump 15, because calcium carbonate can continue to react to become bicarbonate with carbon dioxideCalcium, so can continue to use as the filtered fluid of carbon dioxide via ultrasonic transducer 11 atomizations. Via ultrasonic transducer11 atomizations are used as the filtered fluid of carbon dioxide. So can make aqua calcis make full use of. Finally reclaim bicarbonateCalcium solution is as byproduct.
In condensation hothouse, being provided with hothouse tracheae 52 hothouse tracheaes 52 is coil pipe, its two ends all through hothouse everyIt is indoor that plate 51 extends to cascade filtration, and two ends extend to the indoor part of cascade filtration and are set to horn mouth, hothouse tracheae 52On body, be distributed with pore 53, both sides arrange semiconductor cooling condenser 54. At the indoor biogas of cascade filtration because hothouse dividing plate51 stop, can only extend to the indoor horn mouth of cascade filtration by hothouse tracheae 52 and enter, and hothouse tracheae 52 isCoil pipe, is distributed with pore 53 on it, be again simultaneously from two ends air inlet, so two strands of gases in hothouse tracheae 52 meet itAfter just can discharge from pore 53 uniformly, form one uniform air-flow. Under the refrigeration of semiconductor cooling condenser 54, lead toThereby the wet gas of crossing in biogas can be condensed because of the effect of the cool condenser 54 of semiconductor, reaches dry object with this, after convenienceThe carrying out of continuous biogas processing. On hothouse dividing plate 51, be provided with hothouse guiding gutter, the liquid of condensation is along hothouse guiding gutterEnter in the cascade filtration liquid pool 10 of hothouse mozzle inflow below. Hothouse tracheae 52 coils circular, and circle centre position setting is ledConductance tracheae 55, water conservancy diversion wireway 55 extends in cascade filtration liquid pool 10 through hothouse dividing plate 51. Even if because temperature is fallenLow relation, causes having in the present hothouse tracheae 52 of liquid discharge of partial condensation, under the effect that enters biogas, directly viaWater conservancy diversion wireway 55 enters cascade filtration liquid pool 10. Deng reclaim in cascade filtration liquid pool 10 liquid time put away together just passable.
Semiconductor cooling condenser 54 is provided with ultrasonic wave shake plate 60 towards the one side of hothouse tracheae 52; Ultrasonic wave shake plate 60 producesRaw ultrasonic vibration, can avoid semiconductor cooling condenser 54 surfaces because of the wet gas frosting of condensing, thereby affect refrigeration, is driedTracheae 52 upsides in chamber are provided with vibrations frame 61, and vibrations frame 60 comprises horizontally disposed cross bar and the vertical rod group that is arranged on cross bar both sidesBecome door type frame, vertical rod is fixedly connected on hothouse dividing plate 51, and the cross bar lower surface of vibrations frame 61 is distributed with projection, on cross bar, showsFace center is provided with vibration motor 62, and cross bar is made with elastomeric material. Vibration motor 62 shakes and passes to vibrations frame after opening60 cross bar, make because cross bar is elastomeric material, so cross bar amplifies vibrating effect, vibrations pass to cross bar lower surfaceProjection, the vibrations hothouse tracheae 52 being continued by projection, thus avoid liquid to be attached to for a long time hothouse tracheae 52 inwalls,Cause frosting, affect gas and pass through.
Vibrations frame 60 also can, by the parallel jolting plate that connects to form of multiple door type frames, shake area thereby increase, and adds strong motionEffect.
Tank body 1 upper surface connects solar charging panel 17, and solar charging panel 17 connects battery, is electrically connected with water pump.
The preparation method of the modified clinoptilolite adsorbent of applying in this marsh gas pretreatment unit:
Using natural clinoptilolite is that produce on Changbai Mountain, and the main chemical compositions of using natural clinoptilolite is:
First with 40-60 DEG C of distilled water, using natural clinoptilolite is cleaned, at 80 DEG C, dried diel. Then by concentration beIn the hydrochloric acid solution of 0.1mol/l, flood 6-8h, with distilled water washing 6-8 time,
In ion exchange column, zeolite is carried out to dynamic ion-exchange, first at 70 DEG C, the CaCl2 solution with 1mol/l exchanges2h, exchanges 2 times, and then with deionized water washing 2-3 time, zeolite continues the KCl solution exchange 2h with 1mol/l at 70 DEG C, hands overChange 1 time, then with deionized water washing 2-3 time, then zeolite continues the NH4Cl solution exchange 4h with 1mol/l at 70 DEG C,Exchange 2 times, then with deionized water washing 2-3 time, finally by zeolite heating rate liter with 10 DEG C/min under vacuum conditionTemperature is calcined 8-15min at 200-220 DEG C, is then cooled to 140-150 DEG C of calcining 20-with the rate of temperature fall of 5 DEG C/min25min, is finally warming up to 260-270 DEG C of calcining 90-120min with the heating rate of 10 DEG C/min, obtains tiltedly sending out and boil of modificationStone.
Contrast application test
| Adsorbent | N2 adsorbance (mmol/g) under 1 atmospheric pressure | CH4 adsorbance (mmol/g) under 1 atmospheric pressure | The ratio of N2 and CH4 adsorbance |
| Control group using natural clinoptilolite adsorbent | 0.1823 | 0.1204 | 1.51 |
| Clinoptilolite adsorbent after modification | 0.8929 | 0.1782 | 5.01 |
As can be known from the results, the clinoptilolite after modification all increases to some extent to the adsorbance of nitrogen and methane, but nitrogen before modificationWith the ratio of the adsorbance of methane be 1.51, after modification, the ratio of the adsorbance of nitrogen and methane is 5.01, far exceedes the nitrogen before modificationThe ratio of the adsorbance of gas and methane is 3.32 times before unmodified. Therefore the clinoptilolite after modification is as nitrogen selective absorptionAgent improves for pressure-variable adsorption separation of nitrogen/methane successful, and the height that can be used as pressure-variable adsorption separation of nitrogen, methane is selectedProperty adsorbent.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, not all in the spirit and principles in the present inventionWithin, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a marsh gas pretreatment unit, comprises filtering tank, and described filtering tank is connected with biogas air collector, and its feature existsIn, described filtering tank comprises tank body (1), is provided with the dividing plate (2) that described tank body (1) is separated up and down, institute in described tank body (1)State dividing plate (2) middle part and be provided with opening (3), periphery is fixedly connected with the inwall of described tank body (1), and described dividing plate (2) is upper to be arrangedVelocity-reducing chamber (21), described opening (3) is communicated with the inlet channel of described velocity-reducing chamber (21); Described tank body (1) bottom arranges air inletChamber (4), described inlet chamber (4) upside arranges single filter chamber, and described dividing plate (2) top arranges cascade filtration chamber; Described air inletIn chamber (4), be provided with the air inlet pipe (5) of baffle maze (6) and disc type; Top, described cascade filtration chamber is provided with to get rid of drips device(30) with support (31), described support (31) two ends are fixedly connected with described tank body (1) inwall, described in get rid of drip device (30) and described inSupport (31) connects, and is arranged on the central shaft of described tank body (1); In described tank body (1), comprise horizontally disposed hothouse everyPlate (51), described hothouse dividing plate (51) is arranged on top, described cascade filtration chamber, is fixedly connected with described tank body (1) inwall,Described hothouse dividing plate (51) upside arranges condensation hothouse.
2. marsh gas pretreatment unit according to claim 1, is characterized in that:
Described velocity-reducing chamber (21) comprises velocity-reducing chamber air inlet pipe (22), and described velocity-reducing chamber air inlet pipe (22) is spirality, through slowing downChamber baffle plate (23), described velocity-reducing chamber baffle plate (23) is crisscross arranged in described velocity-reducing chamber (21), and only has one end and described decelerationThe inwall in chamber (21) is fixedly connected with, and described velocity-reducing chamber (21) bottom is connected with described dividing plate (2), and top arranges loose gas-bearing formation (24),Described opening (3) is communicated with the inlet end of described velocity-reducing chamber air inlet pipe (22), the other end envelope of described velocity-reducing chamber air inlet pipe (22)Close, on the body of described velocity-reducing chamber air inlet pipe (22), be distributed with steam vent;
Described baffle plate (6) in described inlet chamber (4) only has one end to be connected with the chamber wall of described inlet chamber (4), described air inlet pipe(5) be spirality and through described baffle plate (6), described inlet chamber (4) arranged outside air inlet, described air inlet one end with described inBiogas air collector is communicated with, other end connecting tee, and the other two ends of described threeway, one end is connected with described air inlet pipe (5), the other endDirectly pass in described inlet chamber (4); Described air inlet pipe is distributed with steam vent on (5), and described inlet chamber (4) top arranges somePassage (7);
Described single filter chamber is provided with single filter liquid pool (8), and described single filter liquid pool (8) is arranged at described inlet chamber(4) upside, described single filter liquid pool (8) bottom arranges gas blow head (9), described gas blow head (9) and described inlet chamber (4) topDescribed passage (7) connect by tracheae;
Described cascade filtration chamber is provided with the cascade filtration liquid pool (10) being connected with described tank body (1) madial wall, described secondary mistakeReservoir (10) bottom arranges ultrasonic transducer (11); Described cascade filtration liquid pool (10) edge is higher than described loose gas-bearing formation（24）；
The filtered fluid using in described single filter liquid pool (8) is sodium hydroxide solution, in described cascade filtration liquid pool (10), makesWith filtered fluid be aqua calcis;
Described tank body (1) sidewall of described cascade filtration liquid pool (10) top is provided with can observe described cascade filtration liquid pool(10) observation window (18);
A described device (30) that gets rid of comprises the driving mechanism (35) being made up of motor and gear, described in described driving mechanism (35) connectsGet rid of the mobile jib (36) that drips device (30), the central axis of described mobile jib (36) is provided with connecting rod, remainder hollow, and described connecting rod is wornCrossing described support (31) is connected with the driving shaft of described driving mechanism (35); Described mobile jib (36) bilateral symmetry arranges some cross bars(37), described cross bar (37) is hollow pipe, and with the internal communication of described mobile jib (36); The outboard end of described cross bar (37) is establishedPut centrifugal drying and drip plug (32);
Described centrifugal drying drips plug (32) arranged outside and gets rid of piece (41), described in get rid of the cone of piece (41) inner side and conical plug (42) at the bottom of and fromOne end of heart connecting rod (43) is fixedly connected with, and described centrifugal connecting rod (43) is arranged on described conical plug (42) both sides, described centrifugal companyThe other end of bar (43) is plugged in bar cover (44), between described centrifugal connecting rod (43) and described bar cover (44), connects by springConnect, described bar cover (44) is fixedly connected with the outboard end of described cross bar (37); In described support (31), arrange described in promising and get rid of and dripThe described mobile jib (36) of device (30) provides the feed pipe of liquid, and described feed pipe connection is got rid of and dripped a device water pump (34), and establish its water sidePut at described mobile jib (36) upside, water inlet end is arranged on described cascade filtration liquid pool (10) bottom;
In described condensation hothouse, be provided with hothouse tracheae (52), described hothouse tracheae (52) is coil pipe, and all wear at its two endsCrossing described hothouse dividing plate (51), to extend to described cascade filtration indoor, and two ends extend to the indoor part of described cascade filtration and establishBe set to horn mouth, on described hothouse tracheae (52) body, be distributed with pore (53), both sides arrange semiconductor cooling condenser (54); InstituteState semiconductor cooling condenser (54) and be provided with ultrasonic wave shake plate (60) towards the one side of described hothouse tracheae (52); Described hothouseTracheae (52) upside is provided with vibrations framves (61), and described vibrations frame (60) comprises horizontally disposed cross bar and is arranged on described cross barThe vertical rod composition door type frame of both sides, it is upper that described vertical rod is fixedly connected on described hothouse dividing plate (51), described vibrations frame (61)Described cross bar lower surface is distributed with projection, and described cross bar upper surface center is provided with vibration motor (62), described cross bar bulletProperty material is made.
3. marsh gas pretreatment unit according to claim 2, is characterized in that, described cascade filtration liquid pool (10) isAnnular, described ultrasonic transducer (11) arranges four, is evenly distributed in described cascade filtration liquid pool (10) bottom.
4. marsh gas pretreatment unit according to claim 2, is characterized in that, described baffle plate (6) interlocks up and downBe arranged in described inlet chamber (4), described baffle plate (6) is grid framework, and modified clinoptilolite adsorbent is set in described framework.
5. according to the marsh gas pretreatment unit described in claim 2-4, it is characterized in that described single filter liquid pool (8)Be interconnected with one-level liquid-adding cell (12) bottom that is arranged at described tank body (1) outside, described cascade filtration liquid pool (10) with establishSecondary liquid-adding cell (13) bottom that is placed in described tank body (1) outside is communicated with, and a described secondary liquid-adding cell is provided with top cover.
6. according to the marsh gas pretreatment unit described in claim 2-5, it is characterized in that described dividing plate (2) and described tankThe below, junction of body (1) arranges and connects liquid box (14).
7. marsh gas pretreatment unit according to claim 6, is characterized in that, on described cascade filtration liquid pool (10)Side is provided with water pump (15), and described water pump (15) connects drainage tube (16), described in described drainage tube (15) water inlet end is arranged at, connectsLiquid box (14) bottom, water side is placed in described cascade filtration liquid pool (10) top.
8. marsh gas pretreatment unit according to claim 6, is characterized in that, described tank body upper surface connects the sunEnergy charging panel (17), described solar charging panel (17) connects battery, is electrically connected with described water pump.
9. according to the arbitrary described marsh gas pretreatment unit of claim 1-8, it is characterized in that, described dividing plate (2) is along instituteState opening (3) and tilt to both sides, become " V " font, described dividing plate (2) upper surface is the cambered surface of middle part projection, described dividing plate (2)Both sides are provided with guiding gutter.
10. one kind adsorbs according to the modified clinoptilolite of applying in the arbitrary described marsh gas pretreatment unit of claim 4-9The preparation method of agent:
First with 40-60 DEG C of distilled water, using natural clinoptilolite zeolite is cleaned, at 80 DEG C, dried diel;
Then in the hydrochloric acid solution that is 0.1mol/l by concentration, flood 6-8h, with distilled water washing 6-8 time,
In ion exchange column, zeolite is carried out to dynamic ion-exchange, first at 70 DEG C, the CaCl2 solution with 1mol/l exchanges2h, exchanges 2 times, and then with deionized water washing 2-3 time, zeolite continues the KCl solution exchange 2h with 1mol/l at 70 DEG C, hands overChange 1 time, then with deionized water washing 2-3 time, then zeolite continues the NH4Cl solution exchange 4h with 1mol/l at 70 DEG C,Exchange 2 times, then with deionized water washing 2-3 time, finally by zeolite heating rate liter with 10 DEG C/min under vacuum conditionTemperature is calcined 8-15min at 200-220 DEG C, is then cooled to 140-150 DEG C of calcining 20-with the rate of temperature fall of 5 DEG C/min25min, is finally warming up to 260-270 DEG C of calcining 90-120min with the heating rate of 10 DEG C/min, obtains tiltedly sending out and boil of modificationStone.
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| CN201610058081.XA CN105597503B (en) | 2016-01-28 | 2016-01-28 | A kind of methane pretreatment apparatus |
| CN201810227321.3A CN108325367A (en) | 2016-01-28 | 2016-01-28 | A kind of methane purification two-stage filter |
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| CN201610058081.XA CN105597503B (en) | 2016-01-28 | 2016-01-28 | A kind of methane pretreatment apparatus |
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| CN201610058081.XA Active CN105597503B (en) | 2016-01-28 | 2016-01-28 | A kind of methane pretreatment apparatus |
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| CN109437163A (en) * | 2018-12-07 | 2019-03-08 | 四川聚创石墨烯科技有限公司 | A kind of system by purifying with continuously restoring to produce graphene |
| CN113249144A (en) * | 2021-05-10 | 2021-08-13 | 广州环峰能源科技股份有限公司 | Biomass gasification system with high gasification rate |
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| CN110540881B (en) * | 2019-08-26 | 2024-01-09 | 东营市瑞兽节能设备有限公司 | Wellhead air source purifier and method |
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Also Published As
| Publication number | Publication date |
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| CN108325367A (en) | 2018-07-27 |
| CN105597503B (en) | 2018-05-08 |
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