CN104865347A - Portable experiment device for analysis of particle wet deposition ability of plant - Google Patents
Portable experiment device for analysis of particle wet deposition ability of plant Download PDFInfo
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- CN104865347A CN104865347A CN201510201726.6A CN201510201726A CN104865347A CN 104865347 A CN104865347 A CN 104865347A CN 201510201726 A CN201510201726 A CN 201510201726A CN 104865347 A CN104865347 A CN 104865347A
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Abstract
The invention relates to air quality monitoring technical field, the present invention provides a portable experiment device for analysis of particle wet deposition ability of a plant, the portable experiment device comprises a plurality of collecting barrels and water storage tanks, the water storage tanks are in one-to-one correspondence connection with the collecting barrels; the top parts of the collecting barrels are provided with water inlets, the bottom parts of the collecting barrels are provided with water outlets, a coarse filtration device, a fine filtering device and a plurality of layers of filtration membranes are in turn arranged in the collecting barrel, the pore diameter of the filter hole of the plurality of layers of filtration membranes are in turn decreased; and the water storage tanks are in connection with the water outlets. The portable experiment device for analysis of particle wet deposition ability of the plant is convenient to disassembly and move, classification analysis can be directly performed within a forest without the need of experiment in a lab, and the problem of simultaneous accurate measurement of wet deposition effects of different plants in different forest types during snows and rains can be solved.
Description
Technical field
The present invention relates to air quality monitoring technical field, particularly relate to and analyze plant for the experimental provision of particle wet deposition ability, relate more specifically to the experimental provision of a kind of portable analysis forest plants to PM2.5 particle wet deposition ability.
Background technology
Particle size in air is various, small particle below 10 μm comprises can enter lung particle and PM2.5, the particle source of different-grain diameter is different, such as PM2.5 is mainly derived from a large amount of burnings of the fuel such as the production run of large industrial enterprise and coal oil, and PM10 is mainly derived from municipal works urban construction being easy to produce airborne dust etc. for another example.From its source, these particles have important impact to air visibility etc.
Among small particle, because PM2.5 particle diameter is little, there is very large specific surface area, cause it more easily to adsorb various poisonous organism, virus, mould and some strong carcinogenic heavy metal substances; And because its surface area is large, relative to entering human lung than coarse particle more easily by breathing and being detained, cause causing great threat to health.Based on above reason, the measurement of the particles such as PM2.5 has become the important Testing index in environmental monitoring field.
PM2.5 in air can be removed by plant, because forest plants have very large tree crown, thus have the blade area of enormous amount, therefore forest plants are regarded as the important channel of the particles such as the PM2.5 existed in removal air, more and more cause the attention of people.But, the blade of forest plants not only can adsorption particle thing, be detained particle, also particle can be made to be re-suspended in air, therefore need by the medium of rainfall snowfall particle be fixed up and take away, the method is wet deposition, and wet deposition is also that forest plants are detained particle, eliminate a kind of important way of particle.
Prior art is difficult to directly in forest, utilize classified filtering device to the particle of different-grain diameter, as TSP, PM10, PM2.5 etc. carry out horse back and decompose sampling and measuring, and prior art lacks the integrated technology to classification process, and various way to solve the problem in integrating process, rainfall snowfall can only be gathered get back in laboratory and carry out classification measurement, after will causing the long-time placement of sample like this, thus make particle a series of change in water, bring great error.
Therefore need to provide a kind of experimental provision, for being collected in different forest plants kinds, the wet deposition amount that rainfall snowfall is formed.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention there is provided a kind of portable analysis plant to the experimental provision of particle wet deposition ability, for convenience detach and mobile, without the need at laboratory experiment, directly hierarchical analysis can be carried out, the wet deposition effect problem of different plants when rainfall snowfall in the accurate measurement Different Forest kind of solution in forest.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of portable analysis plant to the experimental provision of particle wet deposition ability, comprising some gathering barrels, and the water butt be communicated with gathering barrel one_to_one corresponding;
The top of described gathering barrel is provided with water inlet, and the bottom of described gathering barrel is provided with water delivering orifice, and be provided with coarse filter device, fine filtering apparatus and some metafiltration films in described gathering barrel from top to bottom successively, the filter opening aperture of each metafiltration film from top to bottom reduces successively; Described water butt is communicated with described water delivering orifice.
Further, dismountablely on aforementioned gathering barrel inwall be connected with some screw thread stainless steel rings, described coarse filter device and described fine filtering apparatus are connected with described gathering barrel is dismountable by described screw thread stainless steel ring, described filter membrane is arranged on stainless steel stent respectively, and described stainless steel stent is connected with described gathering barrel by described screw thread stainless steel ring.
Preferably, aforementioned crude filtration unit is stainless (steel) wire, and described fine filtering apparatus is double-layer stainless steel net, and the aperture of described stainless (steel) wire is 100 μm; The material of described filter membrane is glass fibre, and the quantity of described filter membrane is three layers, and the filter opening aperture of described each metafiltration film is followed successively by 10 μm from top to bottom, 2.5 μm and 0.2 μm.
Further, be also provided with snubber assembly between aforementioned crude filtration unit and described fine filtering apparatus, described snubber assembly is connected with described gathering barrel by described screw thread stainless steel ring, and described snubber assembly is funnel.
Further, aforementioned gathering barrel is provided with snowfall induction installation, heating arrangement, control module and electric supply installation, and described heating arrangement is heater strip, and described snowfall induction installation comprises the first pressure transducer and temperature sensor; Described control module is connected with temperature sensor with described heater strip, pressure transducer respectively, described electric supply installation is respectively described heater strip, the first pressure transducer, temperature sensor and control module and powers, described first pressure transducer and temperature sensor are arranged at the upper surface of described coarse filter device, described heater strip is arranged at the lower surface of described coarse filter device, and described control module and described power supply unit are fixed on the outer wall of described gathering barrel; The snowfall information collected is passed to described control module by described first pressure transducer and temperature sensor, and described control module makes analysis to this snowfall information, and described control module controls the heating of described heater strip.
Further, aforementioned gathering barrel is connected with described water delivering orifice by PTFF flexible pipe; Described water butt is also provided with ventilation mouth, and described ventilation mouth is provided with barrier film, and the bottom surface of described gathering barrel is funnel-form.
Further, also comprise pressure sensitive device and suction filter pump, described pressure sensitive device is the second pressure transducer, and described second pressure transducer is arranged at the upper surface of described fine filtering apparatus, described suction filter pump is arranged at above described water butt, and is communicated with described PTFF flexible pipe; Described electric supply installation is respectively described second pressure transducer and suction filter pump is powered, described control module connects described second pressure transducer and suction filter pump respectively, the pressure information detected is passed to described control module by described second pressure transducer, and described control module controls described suction filter pump and opens.
Further, also comprise the stationary installation using fixing described gathering barrel, described stationary installation comprises set collar and fixed support, and the shape of described set collar is U-shaped, for described gathering barrel is fixed on described fixed support.
Further, aforementioned fixed support is provided with pickup groove, and described pickup groove is horizontally disposed with, and the two ends of described set collar are each passed through described pickup groove, and are fixed by nut.
Further, each gathering barrel aforementioned is fixed on described fixed support in the horizontal direction successively.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages:
The invention provides a kind of portable analysis plant to the experimental provision of particle wet deposition ability, be provided with coarse filter device, fine filtering apparatus and some metafiltration films in its gathering barrel from top to bottom successively, the filter opening aperture of each metafiltration film from top to bottom reduces successively.The present invention is made not need to test office work, directly just the particle on plant leaf blade surface under rainfall and snowfall condition can be carried out classification according to large small particle diameter, the particle of different-grain diameter is distinguished on the filter membrane of different-grain diameter respectively, be integrated with rainfall and snowfall to pass through successively from three kinds of filter membranes are vertical, aspect, simple and easy, fast, and the different rainfalls of storey height and the difference of snowfall can be distinguished.
The present invention can install this equipment simultaneously on different types of forest plants, such as simultaneously at Pinus tabulaeformis forest, poplar forest, install in the forests such as Chinese scholartree woods, by weighing the mass change of several filter membrane, the hold-up of dissimilar forest plants to the wet deposition of different diameter airborne particle can be obtained fast, measure the difference of dissimilar forest plants to the Adsorption And Retention ability of different diameter airborne particle simultaneously.
Due to experimental provision small volume and less weight provided by the invention, can not affect by condition, not only can be applied to the collection of rainfall, the mobile phone of snowfall can also be applied to, be convenient for carrying, can also this device be installed on indoor plant simultaneously, then carry out carrying out rainmaking to this plant, the plant of Different Forest vegetation type can be obtained to different diameter airborne particle retentivity, thus need not rainfall be subject to, the restriction of the natural conditions such as snowfall, and solve prior art and must get back to by artificial sample in researcher sleet the restriction that hierarchical analysis just can be carried out in laboratory, to liberate artificial, make more intelligent.
Accompanying drawing explanation
Fig. 1 is the structural representation of gathering barrel in the present invention;
Fig. 2 is the structural representation of stationary installation in the present invention;
Fig. 3 is the structural representation of set collar in the present invention;
Fig. 4 is gathering barrel and water butt syndeton schematic diagram in the present invention;
Fig. 5 is the one-piece construction schematic diagram of experimental provision of the present invention.
In figure: 1: coarse filter device; 2: snubber assembly; 3: fine filtering apparatus; 4:PTFF flexible pipe; 5: filter membrane; 6: set collar; 7: nut; 8: fixed support; 9: pickup groove; 10: water butt; 11: gathering barrel; 12: electric supply installation; 13: suction filter pump; 14: sensor connect lines; 15: connecting line leadout hole; 16: snowfall induction installation; 17: pressure sensitive device.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
As Figure 1-3, what the embodiment of the present invention provided a kind ofly analyzes the experimental provision portable analysis plant of plant to particle wet deposition ability to the experimental provision of particle wet deposition ability, comprise some gathering barrels 11, and the water butt 10 be communicated with gathering barrel 11 one_to_one corresponding; Wherein, gathering barrel 11 can be arranged in forest plants tree crown, and its quantity is determined as required, gathering barrel 11 is highly 20cm, water butt 10 is arranged at underground, and the length of water butt 10 is 10cm wide 8cm height 15cm, and water butt 10 needs to guarantee the solution holding a rainfall completely.
The top of gathering barrel 11 is provided with water inlet, and the bottom of gathering barrel 11 is provided with water delivering orifice, and water butt 10 is communicated with water delivering orifice.Be provided with coarse filter device 1, fine filtering apparatus 3 and some metafiltration films 5 in gathering barrel 11 from top to bottom successively, the filter opening aperture of each metafiltration film 5 from top to bottom reduces successively; Coarse filter device 1 drops in gathering barrel 11 mainly for preventing the structures such as larger phytoclasts, and play iris action, fine filtering apparatus 3 plays the landing preventing the large-size particles thing caused because of rainwater pressure, the effect of blocking below PTFF flexible pipe 4.
Coarse filter device 1, fine filtering apparatus 3 and between some metafiltration films 5 and gathering barrel 11 for removably connecting.Dismountablely on gathering barrel 11 inwall be connected with some screw thread stainless steel rings, wherein, the quantity of screw thread stainless steel ring is two, two screw thread stainless steel rings are setting up and down, coarse filter device 1 is connected with gathering barrel 11 respectively by upper and lower two screw thread stainless steel rings with fine filtering apparatus 3, three filter membranes 5 are arranged on three stainless steel stents respectively, and three stainless steel stents are connected with gathering barrel 11 respectively by the screw thread stainless steel ring of below.Wherein, often use by dismounting screw thread stainless steel ring after a period of time, thus dismounting all parts is cleared up.
Coarse filter device 1 is stainless (steel) wire, and fine filtering apparatus 3 is double-layer stainless steel net, and the aperture of stainless (steel) wire is 100 μm, and the diameter of stainless (steel) wire is 10cm.This coarse filter device 1 in rainfall season for filtering the particle being greater than 100 μm, snowfall induction installation 16 is added above coarse filter device 1, heating arrangement is added below coarse filter device 1, above gathering barrel 11, side with the addition of electric supply installation 12, heating and melting snowfall is used for season in snowfall, make it be converted into snow-broth as early as possible, enter into gathering barrel 11.When snowfall season arrives, after snowfall induction installation 16 senses snowfall, pass through control module, control heating arrangement to heat snowfall, it is made to be melted into solution, so that quickly through coarse filter device 1 below, fine filtering apparatus 3 and each metafiltration film 4, prevent accumulated snow from piling up above gathering barrel 11 and cause measuring error.
Concrete is provided with snowfall induction installation 16, heating arrangement, control module and electric supply installation 12 for gathering barrel 11, and heating arrangement is heater strip, and snowfall induction installation 16 comprises the first pressure transducer and temperature sensor; Control module is connected with temperature sensor with heater strip, pressure transducer respectively, control module is connected with temperature sensor with pressure transducer by sensor connect lines 14, electric supply installation 12 is respectively heater strip, the first pressure transducer, temperature sensor and control module and powers, each device is connected by sensor connect lines 14, first pressure transducer and temperature sensor are arranged at the upper surface of coarse filter device, heater strip is arranged at the lower surface of coarse filter device, and control module and power supply unit are fixed on the outer wall of gathering barrel 11; After snowfall is formed, the snowfall information collected is passed to control module by the first pressure transducer and temperature sensor, control module makes analysis to this snowfall information, according to impulsive force and the difference contacting sleet temperature of snowfall, control module controls heater strip heating, thus snowfall is melted as early as possible, enter in gathering barrel 11.Heating heating wire maximum temperature controls to be 60 DEG C, can not endanger environment, avoids producing fire hazard.If non-snowfall season, snowfall induction installation 16 and heater strip then do not work.
The quantity of filter membrane 5 is three layers, and filter membrane 5 is import filter membranes, and it utilizes macromolecule chemical material, and pore adjuvant spreads upon on supporting layer and is made after special processing, and filter membrane 5 material is glass fibre.Filter membrane 5 is diameter 47mm, and the filter opening aperture of each metafiltration film 5 is followed successively by 10 μm from top to bottom, 2.5 μm and 0.2 μm.Wherein, the particle that 10 μm of filter membranes 5 are detained above is the particle between 100 μm-10 μm, the particle that 2.5 μm of filter membranes 5 are detained the above particle that to be particle that particle between 10 μm-2.5 μm and 0.2 μm of filter membrane 5 are detained above be between 2.5 μm-0.2 μm.The suspending liquid of the particle in sleet water is successively by three metafiltration films 5, and it should be noted that, filter membrane 5 is import filter membrane 5, needs to weigh in precision balance before placement.A kind of suspending liquid that rainfall snowfall is formed after the primary filter of coarse filter device 1, particle maximum gauge in this suspending liquid is 100 μm, this suspending liquid is after fine filtering apparatus 3, this three layer filtration device filter membrane 5 can be passed through successively, suspending liquid is after ground floor filter membrane 5, particle in suspending liquid is graded, the particle being greater than 10 μm is intercepted at the ground floor 10 μm of filter membranes on this filter membrane 5, the Particulate suspension being less than 10 μm then leaks down from filter membrane 5, arrive second layer filter membrane 5, in like manner, suspending liquid is when this metafiltration film 5, the particle of 2.5-10 μm is intercepted at the second layer 2.5 μm of filter membranes on filter membrane 5, then suspending liquid continues to leak down, arrive third layer 0.2 μm of filter membrane of filter membrane 5, in like manner third layer filter membrane 5 can tackle the particle of lower 0.2-2.5 μm, less than 0.2 μm very small amount of Particulate suspension then enters in gathering barrel 11.If there are other demands, such as want to measure the filter membrane 5 that PM5.0 could change or install additional required aperture on this basis, can realize measuring easily by the filter membrane 5 of different pore size the demand of the particle concentration wanting the different-grain diameter observed.
Also be provided with snubber assembly 2 between coarse filter device 1 and fine filtering apparatus 3, snubber assembly 2 is connected with gathering barrel 11 by the screw thread stainless steel ring of top, and snubber assembly 2 is funnel, plays the effect of buffering rainwater by reducing drop.
The bottom surface of gathering barrel 11 is funnel-form, and gathering barrel 11 is connected with described water delivering orifice by PTFF flexible pipe 4, and wherein, PTFF flexible pipe 4 connects the center of funnel-form bottom surface, and the length of flexible pipe can be determined according to the needs of the height of tree; Water butt 10 is also provided with the ventilation mouth keeping water butt 10 internal gas pressure balance, described ventilation mouth is provided with barrier film, and water butt 10 is PTFF water butt.
Also comprise pressure sensitive device 17 and suction filter pump, pressure sensitive device 17 is the second pressure transducer, and the second pressure transducer is arranged at the upper surface of fine filtering apparatus 3, and suction filter pump 13 is arranged at above water butt 10, and is communicated with PTFF flexible pipe; Electric supply installation 12 is respectively the second pressure transducer and suction filter pump 13 is powered, control module is connected with the second pressure transducer and suction filter pump 13 respectively by sensor connect lines 14, the sensor connect lines 14 of the second pressure transducer is drawn by connecting line leadout hole 15, this connecting line leadout hole 15 silica gel sealing, prevent gas leakage, and cause suction filter pump pressure not reach.The pressure information detected is passed to control module by the second pressure transducer, and control module controls suction filter pump 13 and opens.Under the very large condition of rainfall in rainy season, higher than the filter velocity of fine filtering apparatus 3, fine filtering apparatus 3 possibility filtration of particulate matters suspending liquid is slower, above fine filtering apparatus 3, the rainwater of accumulation will get more and more, rainwater is easy to be gathered in this position and results in blockage and overflow thus increase error, affect result, after adding pressure sensitive device 17, once pressure sensitive device 17 records 15.7 Ns that actual pressure is greater than setting, and be less than the force value of 31.4 Ns, control module will start suction filter pump 13, thus give fine filtering apparatus 3 one suction, thus increase filter velocity, rainwater is avoided to overflow, reduce experimental error.When pressure is less than setting value, then signal is transmitted control module by sensor connect lines 14 by the second pressure transducer, and control module controls suction filter pump 13 and closes.
Also comprise the stationary installation using fixing described gathering barrel 11, make it can be fixed on forest trunk, stationary installation comprises set collar 6 and fixed support 8, the shape of set collar 6 is U-shaped becket, for gathering barrel 11 is fixed on fixed support 8, the set collar 6 of diameter different size can wrap up trunk, can select the set collar 6 of different-diameter rugosity according to the different size of trees.Fixed support 8 is stainless steel alloy support, position, intermediate portion is fixed on forest trunk by screw, fixed support 8 is provided with pickup groove 9, pickup groove 9 is horizontally disposed with, the two ends of set collar 6 are each passed through pickup groove 9, and are fixed by nut 7, and concrete fixed form is be screwed into nut 7 respectively on the set collar 6 of the both sides of pickup groove 9, two nuts 7 are tightened to pickup groove 9, set collar 6 can be fixed on fixed support 8.In the present embodiment, pickup groove 9 is divided into upper and lower two, and two pickup grooves 9 be arranged in parallel, and each gathering barrel 11 is fixed by upper and lower two set collars 6, and upper and lower two set collars 6 are individually fixed in upper and lower two pickup grooves 9, make gathering barrel 11 be not easy to loosen.
Each gathering barrel 11 is fixed on fixed support 8 in the horizontal direction successively, and the both sides of fixed support 8 respectively can symmetrical fixing several gathering barrel 11.
In practical operation, after having chosen the forest plants kind in field, different according to the rugosity of the stem of plant, choose set collar 6, experimental provision is assembled according to Fig. 2, Fig. 3, is installed on plant trunk according to the pattern of Fig. 3, first the rainfall snowfall gathering barrel 11 of required quantity is installed in stationary installation, fixing on the trunk attaching it to crown canopy inside.Then with PTFF flexible pipe 4, gathering barrel 11 is connected with water butt 10.As shown in Figure 3, storey installs 4 gathering barrels 11, and crown canopy installs 1 gathering barrel 11 point in contrast outward.
The present invention by arranging the rainfall snowfall gathering barrel 11 of differing heights in different forests, in various Different Forest kind, analysis is made to different plants wet deposition effect in rainfall snowfall, collect the suspending liquid obtained, filter step by step and the methods such as chromatogram for indoor by experiment, analyze the quality of different diameter airborne particle and the quality of soluble granule thing of all suspensions in suspending liquid, thus accurately obtain the difference which kind of plant is detained particle before rainfall snowfall, provide scientific and effective according to supporting for selecting reproducting tree species.
The concrete principle of the embodiment of the present invention is:
After rainfall occurs, rainwater can enter gathering barrel 11 by coarse filter device 1, filter out the particle being greater than 100 μm, then rainwater is through snubber assembly 2, arrive fine filtering apparatus 3, after fine filtering apparatus 3, rainwater is from top to bottom successively through 10 μm, 2.5 μm, the three metafiltration films 5 of 0.2 μm, time on ground floor 10 μm of filter membranes 5, because filter membrane 5 aperture is 10 μm, so the particle size of delay on filter membrane 5 is 10 μm to 100 μm, time on the second layer 2.5 μm of filter membranes 5, because filter membrane 5 aperture is 2.5 μm, so the particle size of delay on filter membrane 5 is 2.5 μm to 10 μm, time on third layer 0.2 μm of filter membrane 5, because filter membrane 5 aperture is 0.2 μm, so the particle size of delay on filter membrane 5 is 0.2 μm to 2.5 μm.Remaining rainwater is also just direct enters water butt 10 from PTFF flexible pipe 4, can do and reclaim analysis ingredient further.
In the present embodiment, above-mentioned all device inwalls all post one deck poly tetrafluoroethylene, object is the particle in maximum anti-locking apparatus adsorbent solution, thus reduces error.
Experimentation of the present invention is:
Before being installed to above surveyed forest plants, can be on different types of forest plants, this equipment is installed simultaneously, such as simultaneously at Pinus tabulaeformis forest, poplar forest, install in the forests such as Chinese scholartree woods, the difference of dissimilar forest plants to the Adsorption And Retention ability of different diameter airborne particle can be measured simultaneously, be first ready to the gathering barrel 11 of enough numbers, set collar 6, nut 7, with pickup groove 9, PTFF flexible pipe 4 and water butt 10.
In addition to also have under certain humidity with 100,000/above precision balance on weigh filter membrane 5 with three kinds of different pore sizes respectively, first want before filter membrane 5 weighs to dry 30 minutes at 60 DEG C in drying baker, and put into constant temperature (temperature 25 DEG C) constant humidity (humidity 45%-55%) case balance 24 hours, then weigh, maximize and reduce error.Aperture on filter membrane 5 is respectively 10 μm (can be detained 10 μm to 100 μm particles), 2.5 μm (2.5 μm to 10 μm particles can be detained), 0.2 μm (0.2 μm to 2.5 μm particle can be detained), obtain mass M 1, M2, M3.By each for these three kinds of weighed aperture filter membranes 5 one respectively according to 10 μm from top to bottom, 2.5 μm, the order of 0.2 μm is put into gathering barrel 11 stainless steel stent is paved with does not have gap as far as possible, and each gathering barrel 11 is put into equally.By gathering barrel 11 according to the number required for different tree crown level, be fixed on fixed support 8 with set collar 6 and nut 7, the tree crown the superiors three, one of them is woods outer (contrast is used), 5, tree crown middle level, one of them is woods outer (contrast is used), tree crown orlop 7, one of them, woods outer (contrast is used), respectively by what assemble, is with the fixed support 8 of gathering barrel 11, installation level is on axis, keep level as far as possible, respectively PTFF flexible pipe 4 is installed to gathering barrel 11 lower end, PTFF flexible pipe 4 is imported in water butt 10.
After experiment terminates, take off the filter membrane 5 of three different pore sizes in gathering barrel 11, first will to put it in drying baker at 60 DEG C and dry 30 minutes, and put into constant temperature (temperature 25 DEG C) constant humidity (humidity 45%-55%) case balance 24 hours, be then that 100,000/above precision balance is weighed by precision, error is reduced to maximize, aperture must be arrived and be respectively 10 μm, 2.5 μm, the quality m1 of 0.2 μm of filter membrane 5, m2, m3.
M1-M1, m2-M2, the m3-M3 of poor quality of twice weighing, be corresponding particle: 10 μm to 100 μm particles, 2.5 μm to 10 μm particles, 0.2 μm of quality to 0.2 μm of particle.The difference of the particle of the different-grain diameter that dissimilar forest plants are detained is measured from surveyed wet deposition.
As experiment next time need be carried out, can change, subsequent experimental after then carrying out the filter membrane 5 of the different pore size of three in gathering barrel 11 (10 μm, 2.5 μm, 0.2 μm).
The present embodiment can start snowfall induction installation 16 and heater strip in snowfall season, thus accelerates the thawing of accumulated snow above gathering barrel 11, becomes the solution of particle as early as possible, thus can not be slow because of snow melting, long thawing naturally, receives the impact of environment, and causes error.Forming solution follows rainfall to be identical toward other processes after dirty.
The present embodiment, under the rainy season weather condition such as heavy rain, according to the height of water level in gathering barrel 11, control the switch of suction filter pump 13, thus under avoiding huge rainfall intensity, rainwater overflows from gathering barrel 11, and causes experimental error.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. portable analysis plant is to an experimental provision for particle wet deposition ability, it is characterized in that: comprise some gathering barrels, and the water butt be communicated with gathering barrel one_to_one corresponding;
The top of described gathering barrel is provided with water inlet, and the bottom of described gathering barrel is provided with water delivering orifice, and be provided with coarse filter device, fine filtering apparatus and some metafiltration films in described gathering barrel from top to bottom successively, the filter opening aperture of each metafiltration film from top to bottom reduces successively; Described water butt is communicated with described water delivering orifice.
2. portable analysis plant according to claim 1 is to the experimental provision of particle wet deposition ability, it is characterized in that: dismountablely on described gathering barrel inwall be connected with some screw thread stainless steel rings, described coarse filter device and described fine filtering apparatus are connected with described gathering barrel is dismountable by described screw thread stainless steel ring, described filter membrane is arranged on stainless steel stent respectively, and described stainless steel stent is connected with described gathering barrel by described screw thread stainless steel ring.
3. portable analysis plant according to claim 2 is to the experimental provision of particle wet deposition ability, it is characterized in that: described coarse filter device is stainless (steel) wire, and described fine filtering apparatus is double-layer stainless steel net, and the aperture of described stainless (steel) wire is 100 μm; The material of described filter membrane is glass fibre, and the quantity of described filter membrane is three layers, and the filter opening aperture of described each metafiltration film is followed successively by 10 μm from top to bottom, 2.5 μm and 0.2 μm.
4. portable analysis plant according to claim 3 is to the experimental provision of particle wet deposition ability, it is characterized in that: between described coarse filter device and described fine filtering apparatus, be also provided with snubber assembly, described snubber assembly is connected with described gathering barrel by described screw thread stainless steel ring, and described snubber assembly is funnel.
5. portable analysis plant according to claim 4 is to the experimental provision of particle wet deposition ability, it is characterized in that: described gathering barrel is provided with snowfall induction installation, heating arrangement, control module and electric supply installation, described heating arrangement is heater strip, and described snowfall induction installation comprises the first pressure transducer and temperature sensor; Described control module is connected with temperature sensor with described heater strip, pressure transducer respectively, described electric supply installation is respectively described heater strip, the first pressure transducer, temperature sensor and control module and powers, described first pressure transducer and temperature sensor are arranged at the upper surface of described coarse filter device, described heater strip is arranged at the lower surface of described coarse filter device, and described control module and described power supply unit are fixed on the outer wall of described gathering barrel; The snowfall information collected is passed to described control module by described first pressure transducer and temperature sensor, and described control module makes analysis to this snowfall information, and described control module controls the heating of described heater strip.
6. portable analysis plant according to claim 5 is to the experimental provision of particle wet deposition ability, it is characterized in that: described gathering barrel is connected with described water delivering orifice by PTFF flexible pipe; Described water butt is also provided with ventilation mouth, and described ventilation mouth is provided with barrier film, and the bottom surface of described gathering barrel is funnel-form.
7. portable analysis plant according to claim 6 is to the experimental provision of particle wet deposition ability, it is characterized in that: also comprise pressure sensitive device and suction filter pump, described pressure sensitive device is the second pressure transducer, described second pressure transducer is arranged at the upper surface of described fine filtering apparatus, described suction filter pump is arranged at above described water butt, and is communicated with described PTFF flexible pipe; Described electric supply installation is respectively described second pressure transducer and suction filter pump is powered, described control module connects described second pressure transducer and suction filter pump respectively, the pressure information detected is passed to described control module by described second pressure transducer, and described control module controls described suction filter pump and opens.
8. portable analysis plant according to claim 1 is to the experimental provision of particle wet deposition ability, it is characterized in that: also comprise the stationary installation using fixing described gathering barrel, described stationary installation comprises set collar and fixed support, the shape of described set collar is U-shaped, for described gathering barrel is fixed on described fixed support.
9. portable analysis plant according to claim 8 is to the experimental provision of particle wet deposition ability, it is characterized in that: described fixed support is provided with pickup groove, described pickup groove is horizontally disposed with, and the two ends of described set collar are each passed through described pickup groove, and are fixed by nut.
10. portable analysis plant according to claim 9 is to the experimental provision of particle wet deposition ability, it is characterized in that: each gathering barrel described is fixed on described fixed support in the horizontal direction successively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510201726.6A CN104865347A (en) | 2015-04-24 | 2015-04-24 | Portable experiment device for analysis of particle wet deposition ability of plant |
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| CN201510201726.6A CN104865347A (en) | 2015-04-24 | 2015-04-24 | Portable experiment device for analysis of particle wet deposition ability of plant |
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| CN201510201726.6A Pending CN104865347A (en) | 2015-04-24 | 2015-04-24 | Portable experiment device for analysis of particle wet deposition ability of plant |
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| CN112858078A (en) * | 2021-01-11 | 2021-05-28 | 贵州省林业科学研究院 | Method and system for measuring elution amount of different particles on plant leaf surface by simulating rainfall |
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