CN103278433B - Device and method for researching particle absorbing capability of plants - Google Patents
Device and method for researching particle absorbing capability of plants Download PDFInfo
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- CN103278433B CN103278433B CN201310181989.6A CN201310181989A CN103278433B CN 103278433 B CN103278433 B CN 103278433B CN 201310181989 A CN201310181989 A CN 201310181989A CN 103278433 B CN103278433 B CN 103278433B
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Abstract
The invention discloses a device and a method for researching the particle absorbing capability of plants. The device comprises a particle generating chamber, an air storage chamber and an absorption chamber which are connected in sequence by a pipeline, wherein a valve, an air blower, a filter membrane are arranged on a pipeline between the particle generating chamber and the air storage chamber, a flowmeter is arranged on a pipeline between the air storage chamber and the adsorption chamber, particle detecting ports are respectively formed in an air inlet pipe and an air outlet pipe of the absorption chamber, and a particle detector is arranged at one detecting port. The device and the method are used for researching the comparison of the particle absorbing capacities of different types of plants, and the desired result can be obtained rapidly.
Description
Technical field
The present invention relates to a kind of for comparing the technology of variety classes plant to particle (as PM2.5, PM10 etc.) adsorptive power size, particularly relating to research device and the method for a Plants adsorption particle thing capacity of water.
Background technology
At present in the research field of plant to particle retardance adsorptive power size, except wind-tunnel and these devices of deposition air chamber, there is no more simply general research device, the experimentation of existing research device is comparatively loaded down with trivial details, require higher to experiment place, experiment condition etc., there is certain limitation.
Summary of the invention
The object of this invention is to provide a kind of research device that is simple, plant adsorption particle thing capacity of water efficiently and method.
The object of the invention is to be achieved through the following technical solutions:
The research device of plant adsorption particle thing capacity of water of the present invention, comprise the particle generation chamber, air storage chamber, the absorption chamber that are connected successively by pipeline, pipeline between particle generation chamber and air storage chamber is provided with valve, fan blower and filter membrane, pipeline between air storage chamber and absorption chamber is provided with flowmeter, the draft tube of absorption chamber and escape pipe are respectively equipped with particle detection mouth, and are provided with particle detector at detection mouth place.
The research device of the plant adsorption particle thing capacity of water that application of the present invention is above-mentioned carries out the research method of plant leaf blade adsorption particle thing capacity of water, comprises step:
First, open absorption chamber, plant is inserted on the circle flower foam in absorption chamber, complete impermeable membrane in absorption chamber, at burning set amount fuel in particle generation chamber, open valve, connect fan blower, open flowmeter and particle detector, continuously to air blast in air storage chamber and absorption chamber, after ventilation, leave standstill more than two hours;
Then, the reading of reading flow gauge and particle concentration detector record, and according to the transient data of the particle concentration monitor mean concentration with mathematic integral method count particles thing, the volume reading of flowmeter is multiplied by respectively with the average grain substrate concentration of absorption chamber import and the average grain substrate concentration of outlet, the difference of both calculating is particle total amount, all particulates is finally divided into three parts: be suspended in the particle in hybrid and absorption chamber, the particle of absorption chamber air chamber wall absorption, the particle of plant absorption;
Afterwards, open sealed gas chamber, carry out sampling to impermeable membrane to cut, its weight is weighed with high precision concussion balance, under the condition of sample abundance, air chamber wall delay absorption particle total amount is accurately drawn, by the initial of hybrid and absorption chamber with stop concentration and chamber volume calculates the amount being suspended in the particle in air chamber blown out by fan blower according to front and back weight difference and the impermeable membrane total area. by the initial of two air chambers with stop concentration and chamber volume calculates the amount being suspended in the particle in air chamber blown out by fan blower;
The particle total amount of plant absorption can be calculated by the particle total amount that the particle total amount of access to plant deducts the particle total amount that is suspended in mixing chamber and absorption chamber and the absorption of absorption chamber air chamber wall, calculate the surface area of plant, and calculate the amount of the particle that unit plant surface area absorbs according to the gauge of the particle of plant absorption;
Change other plant into, repeat above-mentioned steps, draw plant absorption particle capacity of water difference.
As seen from the above technical solution provided by the invention, the present invention, by particle generation chamber self-control particle (as PM2.5, PM10 etc.) gas, both can control the amount of fuel, also can control the kind of fuel; By the amount of flowmeter gas-monitoring; Blank test can also be done by set of device, experimental calculation is simplified more, simple, efficient, the result wanted can be obtained fast.
Accompanying drawing explanation
The structural representation of the research device of the plant adsorption particle thing capacity of water that Fig. 1 provides for the embodiment of the present invention.
In figure:
A is absorption chamber, and absorption chamber inwall all spreads impermeable membrane, fixes the colored foam that a block size is suitable bottom absorption chamber, and flower foam is wrapped with impermeable membrane entirely.During measurement, branch is inserted on colored foam;
B is air storage chamber, for the mixing of gas.Gas out from particulate generator, is drawn in pipeline through fan blower, enters mixing chamber mix through piping;
C is particle generation chamber (particle generating means), needs the particle for experiment measuring in this device to the utmost, can use combustion method (directly certain fuel of burning produces particle) or collocation method (producing particle with chemicals configuration).
Embodiment
To be described in further detail the embodiment of the present invention below.
The research device of plant adsorption particle thing capacity of water of the present invention, its preferably embodiment be:
Comprise the particle generation chamber, air storage chamber, the absorption chamber that are connected successively by pipeline, pipeline between particle generation chamber and air storage chamber is provided with valve, fan blower and filter membrane, pipeline between air storage chamber and absorption chamber is provided with flowmeter, the draft tube of absorption chamber and escape pipe are respectively equipped with particle detection mouth, and are provided with particle detector at detection mouth place.
Described particle generation chamber, air storage chamber and absorption chamber fireproof high-temperature resistant plastics are made, and all pipelines are pvc pipe, and described filter membrane is selected according to the particle size of research.
Circular flower foam is placed in described absorption chamber.
The research device of the plant adsorption particle thing capacity of water that application of the present invention is above-mentioned carries out the research method of plant leaf blade adsorption particle thing capacity of water, its preferably embodiment comprise step:
First, open absorption chamber, plant is inserted on the circle flower foam in absorption chamber, complete impermeable membrane in absorption chamber, at burning set amount fuel in particle generation chamber, open valve, connect fan blower, open flowmeter and particle detector, continuously to air blast in air storage chamber and absorption chamber, after ventilation, leave standstill more than two hours;
Then, the reading of reading flow gauge and particle concentration detector record, and according to the transient data of the particle concentration monitor mean concentration with mathematic integral method count particles thing, the volume reading of flowmeter is multiplied by respectively with the average grain substrate concentration of absorption chamber import and the average grain substrate concentration of outlet, the difference of both calculating is particle total amount, all particulates is finally divided into three parts: be suspended in the particle in hybrid and absorption chamber, the particle of absorption chamber air chamber wall absorption, the particle of plant absorption;
Afterwards, open sealed gas chamber, carry out sampling to impermeable membrane to cut, its weight is weighed with high precision concussion balance, under the condition of sample abundance, air chamber wall delay absorption particle total amount is accurately drawn, by the initial of hybrid and absorption chamber with stop concentration and chamber volume calculates the amount being suspended in the particle in air chamber blown out by fan blower according to front and back weight difference and the impermeable membrane total area. by the initial of two air chambers with stop concentration and chamber volume calculates the amount being suspended in the particle in air chamber blown out by fan blower;
The particle total amount of plant absorption can be calculated by the particle total amount that the particle total amount of access to plant deducts the particle total amount that is suspended in mixing chamber and absorption chamber and the absorption of absorption chamber air chamber wall, calculate the surface area of plant, and calculate the amount of the particle that unit plant surface area absorbs according to the gauge of the particle of plant absorption;
Change other plant into, repeat above-mentioned steps, draw plant absorption particle capacity of water difference.
The surface area of described calculating plant adopts weight method to calculate, and first measures the surface area of plant units weight blade, then obtains the plant total area according to plant general assembly (TW);
Complete impermeable membrane in described absorption chamber to refer to all spread impermeable membrane on all inwalls of described absorption chamber and flower foam, and fix with tack.
The research device of plant adsorption particle thing (as PM2.5, PM10 etc.) capacity of water of the present invention, for comparing the research of variety classes plant to the comparison of particle adsorptive power size, to finding out the strongest plant of a kind of adsorption particle thing ability.This device, by particle generation chamber self-control particle (as PM2.5, PM10 etc.) gas, both can control the amount of fuel, also can control the kind of fuel; By the amount of flowmeter gas-monitoring; Blank test can also be done by set of device, experimental calculation is simplified more.Simply, efficiently, the result that we want can be obtained fast
Specific embodiment:
As shown in Figure 1, comprise the particle generation chamber, air storage chamber, the absorption chamber that are connected successively by pipeline, pipeline between particle generation chamber and air storage chamber is provided with valve, fan blower and filter membrane, pipeline between air storage chamber and absorption chamber is provided with flowmeter, the draft tube of absorption chamber and escape pipe are respectively equipped with particle detection mouth, and are provided with particle detector at detection mouth place.In absorption chamber, place circular flower foam, be fixed on bottom air chamber, for inserting, plants shoots is used.In the present embodiment:
1. air chamber: particle generation chamber C as shown in the figure, air storage chamber B and absorption chamber A fireproof high-temperature resistant plastics are made, and size is 400mm*400mm*400mm, all seals;
2. pipeline: all pipelines are pvc pipe, every root pipe range 150mm, pipe diameter 25mm;
3. fan blower: fan blower used is single-phase centrifugal blower, air blast flux is 0.75m
3/ min;
4. impermeable membrane: impermeable membrane selects the PVC paper film of wide 450mm;
5. diameter 50mmPTFE film selected by filter membrane, and filter sizes is selected according to the particle size measured;
6. flowmeter: select RCL-I type thermal type gas quality flow meter, mounting means requires according to specific experiment and determines;
7. particle detector: the particle size according to measuring selects corresponding detector.
Specific experiment step:
(1) choose quantity roughly equal, upgrowth situation is basically identical, the consistent tree branches of growth site is used for experiment, and to arrange without plant blank group.
(2) before putting into plant, pass into particle gas 10min to air chamber, allow the particle that snorkel adsorbs reach capacity, then open air chamber door 5min.The all air chambers of good seal, open valve and fan blower, and examination air blast five minutes, whether pick-up unit seals completely.
(3) absorption chamber inwall all spreads impermeable membrane, fixes the colored foam that a block size is suitable bottom absorption chamber, and flower foam is wrapped with impermeable membrane entirely, is inserted in by plant on colored foam, sealed gas chamber, measures the primary particles substrate concentration of two air chambers.At particle generation chamber burning dosing fuel, open valve simultaneously, connect fan blower, open flowmeter and particle detector, continuously to air blast in sealed gas chamber 1 hour, measured every 5 minutes the particle concentration reading air intake opening and gas outlet, and record data.Two hours are left standstill after ventilation.Measure the termination concentration of all air chambers.
(4) according to the import and export particle concentration data of record, by the transient data of particle concentration monitor input EXCEL table, generate a coordinate curve, and obtain the equation of curve, calculate mean concentration by high number infinitesimal analysis principle.Namely the product of the cumulative volume that concentration and flowmeter are measured obtains particle and passes in and out total amount and be respectively A, B.
(5) open sealed gas chamber, sampling is carried out to impermeable membrane and cuts, weigh its weight with high precision concussion balance, under the condition of sample abundance, accurately draw air chamber wall delay absorption particle total amount C according to front and back weight difference and the impermeable membrane total area.
(6) calculate by the initial of two air chambers and termination concentration and chamber volume the amount D being suspended in the particle in air chamber blown out by fan blower.
(7) the total amount E=A-B-C-D of plant delay absorption particle.
(8) calculate plant leaf area by weight method, according to branch shape, measure basal diameter and the length of branch, with respective table area formulae discovery branch area, obtain the plant total area.
(9) unit area delay absorption particle amount=E/ plant total area.
Change other plant into, repeat above-mentioned steps, draw plant absorption particle capacity of water difference.
The research device of quantification plant leaf blade adsorption particle thing (as PM2.5, PM10 etc.) ability of the present invention and method, for comparing the research of variety classes plant to the comparison of particle adsorptive power size, to finding out the strongest plant of a kind of adsorption particle thing ability.The present invention, by particle generation chamber self-control particle (as PM2.5, PM10 etc.) gas, both can control the amount of fuel, also can control the kind of fuel; By the amount of flowmeter gas-monitoring; Blank test can also be done by set of device, experimental calculation is simplified more.Simply, efficiently, the result wanted can be obtained fast.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. the research device of a Plants adsorption particle thing capacity of water, it is characterized in that, comprise the particle generation chamber, air storage chamber, the absorption chamber that are connected successively by pipeline, pipeline between particle generation chamber and air storage chamber is provided with valve, fan blower and filter membrane, pipeline between air storage chamber and absorption chamber is provided with flowmeter, the draft tube of absorption chamber and escape pipe are respectively equipped with particle detection mouth, and are provided with particle concentration detector at detection mouth place;
Described particle generation chamber, air storage chamber and absorption chamber fireproof high-temperature resistant plastics are made, and size is 400mm*400mm*400mm, all seals, and all pipelines are pvc pipe, and described filter membrane is selected according to the particle size of research;
Circular flower foam is placed in described absorption chamber.
2. application rights requires that the research device of the plant adsorption particle thing capacity of water described in 1 carries out a research method for plant leaf blade adsorption particle thing capacity of water, it is characterized in that, comprises step:
First, open absorption chamber, plant is inserted on the circle flower foam in absorption chamber, complete impermeable membrane in absorption chamber, at particle generation chamber combustion set amount fuel, open valve, connect fan blower, open flowmeter and particle concentration detector, continuously to air blast in air storage chamber and absorption chamber, after ventilation, leave standstill more than two hours;
Then, the reading of reading flow gauge and particle concentration detector record, and according to the transient data of the particle concentration detector mean concentration with mathematic integral method count particles thing, the volume reading of flowmeter is multiplied by respectively with the average grain substrate concentration of absorption chamber import and the average grain substrate concentration of outlet, the difference of both calculating is particle total amount, all particulates is finally divided into three parts: be suspended in the particle in air storage chamber and absorption chamber, the particle of absorption chamber air chamber wall absorption, the particle of plant absorption;
Afterwards, open sealed gas chamber, carry out sampling to impermeable membrane to cut, its weight is weighed with high precision concussion balance, under the condition of sample abundance, air chamber wall delay absorption particle total amount is accurately drawn, by the initial of air storage chamber and absorption chamber with stop concentration and air storage chamber and absorption chamber volume and calculate the amount being suspended in the particle in air storage chamber and absorption chamber blown out by fan blower according to front and back weight difference and the impermeable membrane total area;
The particle total amount of plant absorption can be calculated by the particle total amount that the particle total amount of access to plant deducts the particle total amount that is suspended in air storage chamber and absorption chamber and the absorption of absorption chamber air chamber wall, calculate the surface area of plant, and calculate the amount of the particle that unit plant surface area absorbs according to the gauge of the particle of plant absorption;
Change other plant into, repeat above-mentioned steps, draw plant absorption particle capacity of water difference.
3. the research method of plant leaf blade adsorption particle thing capacity of water according to claim 2, it is characterized in that, the surface area of described calculating plant adopts weight method to calculate, and first measures the surface area of plant units weight blade, then obtains the plant total area according to plant general assembly (TW).
4. the research method of plant leaf blade adsorption particle thing capacity of water according to claim 3, is characterized in that, completes impermeable membrane and refers to all spread impermeable membrane on all inwalls of described absorption chamber and flower foam, and fix with tack in described absorption chamber.
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| CN103278433B true CN103278433B (en) | 2015-07-15 |
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