Can on-line measurement VOCs concentration VOCs adsorption plantTechnical field
The present invention relates to exhaust-gas treatment field, more specifically to can the VOCs absorption of on-line measurement VOCs concentration setIt is standby.
Background technique
Industrial common adsorbent has: silica gel, activated alumina, active carbon, molecular sieve etc., in addition there are also be directed to certainAbsorption of certain compositional selection and the adsorbent material developed；
Silica gel is the silicic acid polymerization composition granule of a kind of hard, amorphous chain and reticular structure, and molecular formula SiO2.nH2O isA kind of hydrophilic polar adsorbent.It is the aqueous solution with sulfuric acid treatment sodium metasilicate, generates gel, and is washed except desulfurationThrough drying after sour sodium, vitreous silica gel is just obtained, it is mainly used for dry, admixture of gas and separation of petroleum component etc..Silica gel industrially is divided into gross porosity and two kinds of pore.For silochrom under conditions of relative humidity is saturated, adsorbance is up to suction80% or more of attached dose of weight, and under low humidity conditions, adsorbance is significantly less than Kiselgel A；
Activated alumina is made of the hydrate thermal dehydration of aluminium, its property depends on the structure shape of initial hydroxideState, generally impure Al2O3, partially hydrated unbodied porous structure substance, wherein not only having unbodiedGel, there are also the crystal of hydroxide.Due to its capillary porosity duct surface activity with higher, therefore also known as active oxidationAluminium.It has stronger affinity to water, is the adsorbent of a kind of pair of minor amount of water depth drying.Under certain operating conditions, itDrying depth up to -70 DEG C of dew point or less；
Active carbon is manufactured after the carbon raw materials such as charcoal, shell, coal are carbonized, activated.Activation method can be divided into two major classes,That is medicament activation method and gas activation.Medicament activation method is exactly that the chemicals such as zinc chloride, potassium sulfide are added in raw material,Heating is carbonized and is activated in inert atmosphere.Gas activation is that activated carbon raw material is heated in inert atmosphere, is led toOften after 700 DEG C or less removing volatile components, it is passed through vapor, carbon dioxide, flue gas, air etc., and 700 ~ 1200Reaction is carried out in DEG C temperature range makes its activation.Active carbon contains many pore constructions so having excellent adsorption capacity.Thus its purposes is throughout various aspects such as water process, decoloration, gas absorptions.
But after these materials absorption exhaust gas, since surface is attached to dirt, purification efficiency is caused to reduce, and then cause to give upGas purification is not thorough.
Summary of the invention
To solve the above problems, the present invention adopts the following technical scheme that.
Can on-line measurement VOCs concentration VOCs adsorption plant, including adsorption plant further includes cleaning equipment；Described is netChanging equipment includes air inlet pipe and an air outlet pipe, and the angle between the air inlet pipe and an air outlet pipe is at 0~90 °；The air inlet pipeFor reducer, the escape pipe straight up, is provided with auger, is provided in the cleaning equipment in the escape pipeOrganic solution；
The adsorbent equipment includes absorption vertical tube, upper bend pipe, lower bend pipe and driving device, the absorption riser upper end connectionOne end of upper bend pipe, lower end connect one end of lower bend pipe, and upper bend pipe connects driving device, the suction with the other end of lower bend pipeThe lower end of attached vertical tube connects escape pipe, and the upper end of the absorption vertical tube connects fresh-air duct.
Preferably, the driving device includes rotary shaft, one end of the multiple support rods of rotation axis connection, describedThe other end of support rod be connected with ball support.
Preferably, magnet is provided in the ball support, the driving device is provided with far from one end of absorption vertical tubeElectromagnet, the lower end of the driving device are provided with dirty bulb.
Preferably, spaced set has multiple elastic rings, the elastic ring to the absorption vertical tube inner wall from top to bottomUpper surface is provided with frictional layer, and the lower bend pipe bottom is provided with powder tube.
Preferably, the elastic ring lower surface is connected with one end of one end and metal bar of spring, the other end of springIt is connected on absorption vertical tube inner wall, the inside of spring, adsorbs and be additionally provided with electromagnetism iron hoop switch, the absorption on vertical tube inner wallMultiple electromagnetism iron hoops are equidistantly provided on the outside of vertical tube and elastic ring same level.
Preferably, VOCs concentration detector is provided in the air inlet pipe, the VOCs concentration detector connects controlDevice processed, the auger and rotary shaft are separately connected first motor and the second motor, and the control device is also electrically connectedOne motor and the second motor.
Beneficial effect
Compared with the prior art, the present invention has the advantages that the present invention is by being provided with cleaning equipment and adsorption plant, thus rightVOCS and other pollutants in exhaust gas carry out thoroughly purification absorption.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adsorption plant of the present invention；
Fig. 2 is the structural schematic diagram of cleaning equipment of the present invention；
Fig. 3 is the structural schematic diagram of ball support of the present invention；
Fig. 4 is the structural schematic diagram in Fig. 1 of the present invention at A.
Figure label explanation:
1, cleaning equipment；2, adsorption plant；3, air inlet pipe；4, escape pipe；5, auger；6, vertical tube is adsorbed；7, upper bend pipe；8, curved underPipe；9, driving device；10, fresh-air duct；11, rotary shaft；12, support rod；13, ball support；14, magnet；15, the first electromagnet；16,Dirty bulb；17, elastic ring；18, frictional layer；19, powder tube；20, spring；21, metal bar；22, the second electro-magnet switch；23,Second electromagnetism iron hoop.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, completeSite preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based onEmbodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment；It shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, can on-line measurement VOCs concentration VOCs adsorption plant, including adsorption plant 2 further includes purificationEquipment 1；Cleaning equipment 1 includes air inlet pipe 3 and escape pipe 4, and the angle between air inlet pipe 3 and escape pipe 4 is at 0~90 °；Air inlet pipe3 be reducer, and escape pipe 4 straight up, is provided with auger 5, is provided with organic solution in cleaning equipment 1 in escape pipe 4；
Adsorbent equipment 2 includes absorption vertical tube 6, upper bend pipe 7, lower bend pipe 8 and driving device 9, and absorption 6 upper end of vertical tube connects upper bend pipe7 one end, lower end connect one end of lower bend pipe 8, and upper bend pipe 7 connects driving device 9 with the other end of lower bend pipe 8, adsorbs vertical tube 6Lower end connect escape pipe 4, absorption vertical tube 6 upper end connect fresh-air duct 10.
Driving device 9 includes rotary shaft 11, and rotary shaft 11 connects one end of multiple support rods 12, the other end of support rod 12It is connected with ball support 13.
Magnet 14 is provided in ball support 13, driving device 9 is provided with electromagnet 15 far from one end of absorption vertical tube 6, drivesThe lower end of device 9 is provided with dirty bulb 16.
Spaced set has multiple elastic rings 17 to absorption 6 inner wall of vertical tube from top to bottom, and 17 upper surface of elastic ring, which is provided with, rubsLayer 18 is wiped, lower 8 bottom of bend pipe is provided with powder tube 19.
17 lower surface of elastic ring is connected with one end of spring 20 and one end of metal bar 21, and the other end of spring 20 is connected toIt adsorbs on 6 inner wall of vertical tube, the inside of spring 20, adsorbs and be additionally provided with electromagnetism iron hoop switch 22 on 6 inner wall of vertical tube, adsorb vertical tube 617 same level of outside and elastic ring on be equidistantly provided with multiple electromagnetism iron hoops 23.
VOCs concentration detector is provided in air inlet pipe 3, VOCs concentration detector connects control device, auger 5 and rotationAxis 11 is separately connected first motor and the second motor, and control device is also electrically connected first motor and the second motor.
Working principle:
As shown in Fig. 2, exhaust gas is entered in organic solution by the air inlet pipe reduced first, and then enter outlet straight upPipe, is capable of increasing the speed that gas enters organic solution using the air inlet pipe of decrement, and then will not return from air inlet pipe, with thisMeanwhile Concentration Testing can be come more and then pass information to control device by the VOCs concentration detector being arranged in air inlet pipe,Control device and then auger revolving speed is controlled, accelerate the mixing of organic solution and exhaust gas and accelerates the rising of exhaust gas and from air inlet pipeEnter the speed in organic solution；
Then exhaust gas is entered in adsorbent equipment by escape pipe, as shown in Figure 1, constantly having suction during exhaust gas risesAttached ball is at the uniform velocity fallen, and when adsorbing sphere is fallen, can be touched on elastic ring, and the frictional layer on elastic ring can be by the surface of adsorbing sphereIt is scratched, so that the adsorption efficiency of adsorbing sphere is improved, and elastic ring also plays the effect of speed limit, in addition, elastic ring becomesShape, compressed spring, metal bar touches magnet ring switch at this time, so that electromagnetism iron hoop be made to work, is provided with iron ball in adsorbing sphere,So resistance of the adsorbing sphere in elastic ring, whereabouts will be slow under the graviational interaction of magnet ring, frictional layer scratches absorption ball surfacePowder can drop into powder tube, because absorption vertical tube cross-sectional sizes and adsorbing sphere are almost big, exhaust gas is bound to contactMultiple adsorbing spheres；And absorption ball surface dirt attachment, so adsorption efficiency is higher；The adsorbing sphere of whereabouts drops into lower bend pipeIn, under the impact that the adsorbing sphere then under the action of driving device, and one by one is fallen, adsorbing sphere can be gradually increasing,And then driving device can will get in adsorbing sphere transport one by one, then fall on from upper bend pipe in absorption vertical tube, in addition, ball supportIt is inside provided with magnet, but if adsorbing sphere is larger, attraction is weaker, when adsorbing sphere is smaller, gravitation is larger at this time, then existsIt can be entrusted away by ball under the action of magnet, when ball support moves to one end far from absorption vertical tube, the work of electromagnet indirect,The frequency of work of electromagnet and the revolving speed of driving device are directly proportional；Electromagnet adsorbs adsorbing sphere at this time, because of electromagnetAttraction be greater than ball support in magnet, then electromagnet power off, lose magnetism, adsorbing sphere is under gravity along drivingThe inner wall of device moves in dirty bulb, to remake adsorbing sphere；VOCs concentration detector detects the size of concentrationIt will affect the revolving speed of rotary shaft.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；Anyone skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and itsIt improves design and is subject to equivalent substitution or change；It should be covered by the scope of protection of the present invention.