CN106226103A - A kind of PM2.5 depurator Performance Evaluation platform and appraisal procedure - Google Patents

Abstract

The invention discloses a PM2.5 purifier performance evaluation platform and an evaluation method. The platform is composed of an inner cabin and an outer cabin. The inner cabin includes an air detection unit at the foot of the cabin, a smoke inlet unit at the top of the cabin, an air mixer, a table placed in the center of the cabin, and an inner cabin door. The outer cabin includes Smoke combustion and storage, temperature and humidity control system, air filter unit, intelligent control computer and outer cabin door. The interior cabin air detection unit includes dust sensors at four different positions, the smoke inlet unit includes smoke inlets at four different positions, and the air filter unit includes a clean air introduction system and an outlet system. The intelligent control computer transmits the command to the controller according to the set value, and the controller controls to turn on the clean air import and export system and the temperature and humidity controller, so that after the inner cabin environment reaches the expected value, the smoke combustion is started to import the smoke into the inner cabin through the smoke inlet , after fully stirring, the purifier purification experiment was carried out.

Description

A PM2.5 purifier performance evaluation platform and evaluation method

technical field

The invention relates to the field of air purification, in particular to a PM2.5 purifier performance evaluation platform and evaluation method.

Background technique

In recent years, the PM2.5 pollution of urban ambient air has intensified, and people have begun to realize the importance of good air quality. Air purifiers, as a household appliance that specializes in improving and solving indoor air pollution, have attracted much attention from consumers. A large number of air purifiers in the market will come with various so-called "test reports" in product recommendations, and most of them are the results of many manufacturers choosing testing agencies to artificially improve the testing results in order to pursue ultra-high air purification data. Rather than a professional air purifier technical standard. For example, serious exaggerated publicity such as "cleanliness rate as high as 99" and "indoor effect within 10 minutes" and disorderly competition that mislead consumers directly lead to consumers having no choice.

The purpose of the foregoing discussion is to introduce the reader to various aspects of the technology that may be related to various aspects of the present invention that will be described and/or claimed below. It is believed that the discussion will help provide background information for the reader to facilitate a better With the various aspects of the present invention in mind, it is therefore to be understood that these discussions are to be read in this light, and not as admissions of prior art.

Contents of the invention

The purpose of the present invention is to provide a PM2.5 purifier performance evaluation platform and evaluation method thereof with high intelligence, strong professionalism, superior performance, high stability, high reliability, and easy promotion. This platform can realize the inspection of the purification degree of the purifier, automatic generation of charts, automatic statistics and generation of accurate and professional inspection reports.

In order to achieve the above object, the technical scheme adopted in the present invention and the evaluation method are:

The platform (also known as the environmental test chamber) is composed of an inner cabin and an outer cabin. The inner cabin includes an air detection unit at the foot of the cabin, a smoke inlet unit at the top of the cabin, an air mixer, a table placed in the center of the cabin, and The inner cabin door, correspondingly, the outer cabin includes smoke combustion and storage, temperature and humidity control system, air filter unit, intelligent control computer and outer cabin door. Wherein, the interior cabin air detection unit includes dust sensors at four different locations, the smoke inlet unit includes smoke inlets at four different locations, and the air filter unit includes a clean air introduction system and an outlet system.

Further, the intelligent control computer transmits commands to the controller according to the set value, and the controller controls to turn on the clean air import and export system and the temperature and humidity controller to make the interior cabin environment reach the desired value.

Further, the smoke combustion and storage in the outer cabin is used to generate solid particles with a radius of 1 mm to 30 mm, compress and store them, and the upper pipe inhales a certain volume of smoke after opening.

Furthermore, the clean air import and export system is equipped with multi-stage purification devices to ensure that the air entering the inner cabin and exporting to the outside world is highly clean, non-toxic and harmless.

Further, the hatch door of the inner cabin is rotated at the front end of the inner cabin, and the hatch door of the outer cabin is rotated at the side end of the outer cabin.

Further, the air agitator is mainly composed of a household ceiling fan, which is installed in the center of the top of the inner cabin.

Further, the household square tables and chairs are placed in the center of the inner cabin, below the air agitator, for placing the purifier.

Further, the smoke inlet unit includes four pipes connected with the smoke generator, which are respectively installed at the tops of the corners of the inner cabin.

Further, the air detection unit includes four dust sensors, which are respectively installed at the bottom of the corner of the inner cabin.

Further, a bladeless fan is used at the mouth of the dust conveying pipe, and a high-power air compressor is used for air compression.

Furthermore, the clean air import and export system is composed of medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment.

Furthermore, the intelligent control computer supports manual setting of the initial value, controls the working status of other parts through the controller, automatically records and generates a table, and calculates the corresponding purification index and sends it to the display screen.

An evaluation method of a PM2.5 purifier performance evaluation platform, comprising steps:

a) The intelligent control computer sends commands to the controller according to the set value, and the controller controls to open the clean air import and export system and the temperature and humidity controller, so that the interior cabin environment reaches the desired value;

b) The clean air introduction system sucks the outside air into the pipeline, and enters the inner cabin after multifunctional cleaning of medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure that the initial PM2.5 background concentration is less than 0.05mg/ m^3;

c) The temperature and humidity controller strictly controls the ambient temperature of the inner cabin during the purification process to be 25°C±2.5°C and the relative humidity of the environment is 50%±10%;

d) When the background concentration of particulate matter PM2.5 is reduced to a suitable level, the computer automatically records the background concentration of particulate matter PM2.5 and starts the circulation fan;

e) Smoke combustion and storage open the valve, use the pressure difference to release a certain amount of smoke into the inner cabin through the smoke inlet above the inner cabin, and the smoke is involved in the air vortex formed by the stirring of the circulating fan;

f) When the dust sensor detects that the smoke reaches the initial concentration, close the smoke inlet, and the circulation fan will continue to stir for 2 minutes, and turn off the circulation fan after the smoke is evenly mixed;

g) When the circulating fan stops rotating, the dust sensor measures the concentration of particulate matter PM2.5 and records it; the value of this test point is used as the initial concentration C0 (t=0min) in the experimental cabin;

h) The air purifier is in the closed state, and the intelligent control computer begins to measure the initial concentration C0 (t=0min) in the experimental cabin for timing, and controls the dust sensor according to t=0, 2, 4, ... 20min successively, every Measure and record the data once every 2 minutes, and measure continuously for 20 minutes; calculate and generate the natural attenuation constant kn of particulate matter PM2.5;

i) The clean air export system sucks the air in the inner cabin into the pipeline, and discharges it to the outside world after multi-functional cleaning of medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure non-toxic and harmless;

Further, repeat the above operations a~g;

j) The air purifier is in the open state, the intelligent control computer begins to measure the initial concentration C0 (t=0min) in the experimental cabin, and controls the dust sensor according to t=0, 2, 4, ... 20min in sequence, every Measure and record the data once every 2 minutes, and measure continuously for 20 minutes;

k) Further, close the air purifier, calculate and generate the total decay constant ke of particulate matter PM2.5;

l) The clean air export system sucks the air in the inner cabin into the pipeline, and discharges it to the outside after multi-functional cleaning of medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure non-toxic and harmless;

m) The intelligent control computer automatically calculates and generates clean air volume (CADR), applicable area (S) and energy efficiency ratio (E).

Beneficial effects of the present invention: the evaluation platform and evaluation method provide a standard for testing the purification performance of the uneven air detectors on the market; directly operate the environment in the cabin by setting the initial value of the intelligent control computer, It is convenient and accurate, eliminating the cumbersome steps of step-by-step operation and saving time; the evaluation platform and evaluation method are advanced and professional, with strong operability and accurate data, which can provide users with a reliable performance index of the purifier for the society to create greater practical value.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1. Outer cabin; 2. Inner cabin; 3. Smoke intake pipe; 4. Smoke combustion and storage; 5. Temperature and humidity controller; 6. Clean air outlet pipe; 7. Intelligent control computer; 8. Outer cabin door; 9. Inner cabin door; 10. Dust sensor; 11. Clean air introduction pipe; 12. Table and purifier; 13. Household ceiling fan.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.

As shown in Figure 1, the platform (also known as the environmental test chamber) is composed of an inner cabin 2 and an outer cabin 1. The inner cabin includes an air detection unit at the foot of the cabin, a smoke inlet unit at the top of the cabin, and an air agitator. , the table 12 placed in the center of the cabin and the inner cabin door 9, correspondingly, the outer cabin includes smoke combustion and storage 4, temperature and humidity control system 5, air filter unit, intelligent control computer 7 and outer cabin door 8. Wherein, the interior cabin air detection unit includes dust sensors 10 at four different positions, the smoke inlet unit includes smoke inlets 3 at four different positions, and the air filter unit includes a clean air introduction system 11 and an outlet system 6.

a) The above-mentioned intelligent control computer 7 transmits commands to the controller according to the set value, and the controller controls to open the clean air import and export system and the temperature and humidity controller to make the inner cabin environment reach the desired value.

b) The above-mentioned clean air introduction system 11 sucks the outside air into the pipeline, and enters the inner cabin after multi-functional cleaning of medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure that the initial PM2.5 background concentration is less than 0.05mg/ m^3.

c) The above-mentioned temperature and humidity controller 5 strictly controls the ambient temperature of the inner cabin during the purification process to be 25°C±2.5°C and the relative humidity of the environment to be 50%±10%.

d) Further, when the background concentration of particulate matter PM2.5 is reduced to a suitable level (less than 0.05mg/m^3), the computer automatically records the background concentration of particulate matter PM2.5 and starts the circulation fan 13.

e) Further, the smoke combustion and storage 4 opens the valve, and uses the pressure difference to release a certain amount of smoke into the inner cabin through the smoke inlet 3 above the inner cabin, and the smoke is drawn into the air vortex formed by the circulation fan 13 stirring.

f) Further, when the dust sensor 10 detects that the smoke reaches the initial concentration (about 1.0mg/m^3), the smoke inlet 3 is closed, and the circulation fan 13 is stirred for another 2 minutes, and the circulation fan 13 is turned off after the smoke is evenly mixed.

g) Further, after the circulation fan 13 stops rotating, the dust sensor measures the concentration of particulate matter PM2.5 (at the beginning, the concentration of particulate matter PM2.5 is about 1.0mg/m^3), and records it. The value of this test point is taken as the initial concentration C0 (t=0min) in the experimental chamber.

h) said air purifier 12 is in a closed state, and the intelligent control computer 7 counts from the initial concentration C0 (t=0min) in the test chamber, and controls the dust sensor 10 according to t=0, 2, 4, ... 20min, measure and record the data every 2min, and measure continuously for 20min. Calculate and generate the PM2.5 natural decay constant kn.

i) The clean air exporting system 6 sucks the air in the inner cabin into the pipeline, and discharges it to the outside after being multi-functionally cleaned by medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure non-toxic and harmless.

Further, repeat the above operations a to g.

j) The air cleaner 12 is in the open state, and the intelligent control computer 7 counts from the initial concentration C0 (t=0min) in the test chamber, and controls the dust sensor 10 according to t=0, 2, 4, ... 20min, measure and record the data every 2min, and measure continuously for 20min.

k) Further, close the air purifier 12, and calculate and generate the PM2.5 total attenuation constant ke.

l) The clean air export system 6 sucks the air in the inner cabin into the pipeline, and discharges it to the outside after being multi-functionally cleaned by medium-efficiency air filters, high-efficiency air filters, activated carbon filter cartridges and other equipment to ensure non-toxic and harmless. m) The intelligent control computer 7 automatically calculates and generates clean air volume (CADR), applicable area (S) and energy efficiency ratio (E).

Many specific details have been set forth in the above description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described here, therefore, it should not be construed as limiting the protection scope of the present invention.

Claims (10)

1. a PM2.5 depurator Performance Evaluation platform, it is characterised in that: platform is combined into outer cabin by interior cabin, described interior Cabin includes being located at the air detector module of cabin foot, is located at the fume inlet unit on top, cabin, air agitator, is placed in the table of cabin central authorities Sub and interior hatch door, correspondingly, described outer cabin include smoke combustion and bin, temperature and humidity control system, air filter unit, Based Intelligent Control computer and outer hatch door；Wherein, described interior cabin air detector module includes the dust sensing of four diverse locations Device, described fume inlet unit includes the smoke inlet of four diverse locations, and described air filter unit includes pure air Import system and guiding system；Described Based Intelligent Control computer sends order to controller according to setting value, and controller controls to open Open pure air and import and export system, temperature and humidity controller, after making interior cabin environment reach expected value, start smoke combustion by smog Cabin in being imported by fume inlet, carries out purification utensil experiment after being sufficiently stirred for.

Depurator Performance Evaluation platform the most according to claim 1, it is characterised in that: described outer cabin smoke combustion and storage Device for generate radius 1mm～30mm solid particle, compress and store, open back upper place pipeline and suck certain volume cigarette Mist.

Depurator Performance Evaluation platform the most according to claim 1, it is characterised in that: Based Intelligent Control computer backer's work sets Determine initial value and control other parts duty, automatically record generation form by controller, calculate corresponding decontamination index and deliver to Display screen.

Depurator Performance Evaluation platform the most according to claim 1, it is characterised in that: pure air imports and guiding system It is mounted with stage purifying device, clean to ensure the air height that in entering, cabin is extraneous with derivation, nontoxic.

Depurator Performance Evaluation platform the most according to claim 1, it is characterised in that: described interior cabin door peace turns in interior cabin Front end, described outer cabin door peace turns cabin side outside；Described air agitator is mainly made up of domestic ceiling fan, and peace turns pushes up in interior cabin End central authorities；Domestic pros tables and chairs are placed in below interior cabin central authorities, air agitator, are used for placing depurator.

Depurator Performance Evaluation platform the most according to claim 1 and 2, it is characterised in that: described fume inlet unit bag Include four pipelines being connected with aerosol generator, be separately mounted to top, corner, interior cabin.

Depurator Performance Evaluation platform the most according to claim 1, it is characterised in that: described air detector module includes four Individual dust sensor, is separately mounted to bottom corner, interior cabin.

Depurator Performance Evaluation platform the most according to claim 2, it is characterised in that: dust dispatch tube road junction uses without leaf Fan；Air compression uses high power air compressor.

Depurator Performance Evaluation platform the most according to claim 5, it is characterised in that: pure air import and export system by Middle effect air filter, high efficiency particle air filter, activated-carbon filter cylinder device form.

10. an appraisal procedure for the PM2.5 depurator Performance Evaluation platform as described in claim 1-9 is arbitrary, its feature exists In: a) described Based Intelligent Control computer sends order to controller according to setting value, and controller controls to open pure air and imports Guiding system, temperature and humidity controller, make interior cabin environment reach expected value；

B) described pure air import system is by outside air intake line, imitates air filter, high-efficiency air filtering in passing through Cabin in entering after the equipment multifunctional cleanings such as device, activated carbon filter cylinder, it is ensured that initial p M2.5 background concn is less than 0.05mg/m^3；

C) in described temperature and humidity controller strictly controls in purification process cabin ambient temperature be 25 DEG C ± 2.5 DEG C and environment relative Humidity is 50% ± 10%；

D) treating that particulate matter PM2.5 background concn is reduced to be suitable for level, computer automatically records particulate matter PM2.5 background concn and opens Dynamic circulating fan；

E) smoke combustion and bin Open valve, utilize pressure difference to be released by smoke inlet above interior cabin by a certain amount of smog Putting to interior cabin, smog is involved in the air-swirl that circulating fan stirring is formed；

F) detecting that smog reaches initial concentration when dust sensor, close smoke inlet, circulating fan carries out 2min stirring again Operation, closes circulating fan after smog mix homogeneously；

G) stopping fan rotation to be recycled, dust sensor measures the concentration of particulate matter PM2.5, and record；The numerical value of test point As the initial concentration C0 (t=0min) in Laboratory Module；

H) described air purifier is closed, Based Intelligent Control computer by initial concentration C0 (t in determination experiment cabin =0min) play timing, control dust sensor press successively t=0,2,4 ... 20min, every 2min measure a secondary data and remember Record, METHOD FOR CONTINUOUS DETERMINATION 20min；Calculate and generate particulate matter PM2.5 Natural Attenuation constant kn；

I) described pure air guiding system is by air intake pipe road, interior cabin, imitates air filter, high-efficiency air filtering in passing through The equipment multifunctional cleaning heel row such as device, activated carbon filter cylinder go out the external world, it is ensured that nontoxic；

Further, above a～g operation is repeated；

J) described air purifier is in opening, Based Intelligent Control computer by initial concentration C0 (t in determination experiment cabin =0min) play timing, control dust sensor press successively t=0,2,4 ... 20min, every 2min measure a secondary data and remember Record, METHOD FOR CONTINUOUS DETERMINATION 20min；

K) further, close air purifier, calculate and generate particulate matter PM2.5 complete attenuation constant ke；

L) described pure air guiding system is by air intake pipe road, interior cabin, imitates air filter, high-efficiency air filtering in passing through The equipment multifunctional cleaning heel row such as device, activated carbon filter cylinder go out the external world, it is ensured that nontoxic；

M) described Based Intelligent Control computer automatically calculates generation Clean air delivery rate (CADR), is suitable for area (S) and Energy Efficiency Ratio (E).