CN114383989A - Air purification equipment all-condition performance evaluation testing device and testing method - Google Patents
Air purification equipment all-condition performance evaluation testing device and testing method Download PDFInfo
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- CN114383989A CN114383989A CN202111464771.2A CN202111464771A CN114383989A CN 114383989 A CN114383989 A CN 114383989A CN 202111464771 A CN202111464771 A CN 202111464771A CN 114383989 A CN114383989 A CN 114383989A
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 238000004887 air purification Methods 0.000 title claims abstract description 53
- 238000011156 evaluation Methods 0.000 title claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 79
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 25
- 238000004088 simulation Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 11
- 239000003344 environmental pollutant Substances 0.000 claims description 10
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 5
- 230000005180 public health Effects 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
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- 239000000356 contaminant Substances 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
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- 241000191963 Staphylococcus epidermidis Species 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
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- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000004814 polyurethane Substances 0.000 description 1
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- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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Abstract
The invention belongs to the field of application evaluation of air purification equipment, and particularly relates to a device and a method for evaluating and testing the full-working-condition performance of air purification equipment. The device comprises an outer chamber for manufacturing and sampling particle concentration and an inner chamber arranged inside the outer chamber for testing; the outer chamber is provided with a particle concentration generator which is connected with the inner chamber through a sample guide pipe and is used for conveying manufactured particles to the inner chamber; the inner chamber is provided with a space for accommodating the air purification equipment to be detected, the bulkhead of the inner chamber is provided with a sampling hole, and the sampling hole is connected with an air particle concentration collector and used for analyzing the concentration of particles in the air treated by the air purification equipment to be detected. According to the invention, by arranging the outer cabin and the inner cabin and cooperating with the linkage operation of all the devices, key performance data reflecting the purifying effect of the air purifying device can be obtained, and the problem of performance detection of the air processing equipment in the field of public health is solved.
Description
Technical Field
The invention belongs to the field of application evaluation of air purification equipment, and particularly relates to a device and a method for evaluating and testing the full-working-condition performance of air purification equipment.
Technical Field
Air purification is an air conditioning measure that has as a primary purpose the creation of clean air. Air purification device handles through the circulation that forces the room air through air purification equipment, filter or get rid of the small dust particle and other harmful substance in the closed building internal environment, thereby finally reach the purpose of purifying the building internal air environment (part air purification equipment still has the function of killing bacterium and virus), can provide the filtration purification of particulate matter, formaldehyde, microorganism etc. for the indoor environment, reach the dust fall and remove the haze, get rid of effects such as harmful residue and peculiar smell, there is very important effect to public health and improvement of operational environment level.
As key equipment in the field of public health, corresponding technical standards and detection methods exist for detecting the single purification efficiency of particulate matters, microorganisms and chemical pollutants of an air purification device, but the existing test means are difficult to realize the synchronous measurement of the purification efficiency and the purification effect index of the air environment purification device on the basis of controllable temperature and humidity environment, grasp the performance of the air purification device under different working conditions and cannot realize the rapid, effective and timely treatment of multiple data.
Disclosure of Invention
In order to solve the technical problem, one of the purposes of the present application is to provide an air purification equipment all-condition performance evaluation testing device.
The invention adopts the following technical scheme:
the device for evaluating and testing the full-working-condition performance of the air purification equipment is characterized by comprising an outer cabin for manufacturing and sampling particle concentration and an inner cabin arranged in the outer cabin and used for testing; the outer chamber is provided with a particle concentration generator which is connected with the inner chamber through a sample guide pipe and is used for conveying manufactured particles to the inner chamber; the inner chamber is provided with a space for accommodating the air purification equipment to be detected, the bulkhead of the inner chamber is provided with a sampling hole, and the sampling hole is connected with an air particle concentration collector and used for analyzing the concentration of particles in the air treated by the air purification equipment to be detected.
Preferably, the inner chamber is provided with a pneumatic rotary sealing inlet valve and a pneumatic rotary sealing outlet valve which are communicated with the outer chamber; the outer chamber is provided with an outer chamber air inlet and an outer chamber air outlet which are communicated with the external environment.
Preferably, an air temperature and humidity simulation system is arranged outside the air inlet of the outer cabin, the air temperature and humidity simulation system comprises a heating pipe and a humidifying pipe which are arranged in the same closed space, the closed space is connected with the air inlet of the outer cabin, and the humidifying pipe is connected with a humidifying box arranged outside the closed space; and a second fan is further arranged in the closed space, and a rotary sealing door is arranged at the position, close to the second fan, of the closed space and communicated with the external environment.
Preferably, an air treatment pipeline is further arranged on the outer side of the pneumatic rotary sealing air inlet valve, and a fan and a filter screen are sequentially arranged between the air treatment pipeline and the pneumatic rotary sealing air inlet valve from a pipeline air inlet of the air treatment pipeline in the air flowing direction.
Preferably, the particle concentration generator comprises pollutant generation box and fan, the pollutant generation box is the electric heat constant temperature incubator, be provided with the pollution source that is used for the particle kind of change in the electric heat constant temperature incubator, the fan blows the particle to leading appearance pipe.
Preferably, a stirring fan is further arranged at the inner top position of the inner cabin.
Preferably, a particle recovery and purification system is arranged at an air outlet of the outer chamber, and the particle recovery and purification system comprises a pressure steam sterilizer and an air purifier for exhaust.
Preferably, a dry-wet bulb temperature detector is further arranged in the inner cabin, wherein the wet bulb temperature of the dry-wet bulb temperature detector is adjusted by the air temperature and humidity simulation system, and the dry bulb temperature of the dry-wet bulb temperature detector is adjusted by a cooling system arranged outside the outer cabin and a heating pipe in the air temperature and humidity simulation system.
Preferably, the cooling system comprises a compression condensing unit, a cooling water pump, a cooling tower and a heat exchanger, the heat exchanger is connected with the cooling tower through the compression condensing unit and the cooling water pump, and the heat exchanger is arranged in the closed space of the air temperature and humidity simulation system and used for adjusting the air temperature and humidity conveyed by the outer cabin.
The invention also aims to provide a test method of the test device for evaluating the full-working-condition performance of the air purification equipment, which comprises the following steps:
s1, placing air purification equipment to be tested in an inner cabin, starting an air temperature and humidity simulation system, setting required air temperature and humidity test conditions, and preparing air meeting the requirements and entering the inner cabin;
s2, after the dry-wet bulb temperature detector detects that the environmental parameters of the inner chamber reach a set value, starting a particle concentration generator to prepare particles for testing, entering the inner chamber through a sample guide pipe, and uniformly mixing the particles with air in the inner chamber;
s3, starting an air particle concentration collector, and recording the initial air particle concentration of the inner cabin before purification;
s4, starting the air purification equipment to be detected, stopping the air purification equipment after running for a set time, and recording the concentration of air particles in the purified inner cabin;
s5, calculating the purification efficiency of the air purification equipment to be detected according to the obtained numerical value;
and S6, after the test is finished, closing the air temperature and humidity simulation system, the particle concentration generator and the air particle concentration collector, enabling test gas in the inner chamber and the outer chamber to enter the particle recovery and purification system through an air outlet of the outer chamber, and discharging the test gas after the test gas is treated by the pressure steam sterilizer and the air purifier for exhausting.
The invention has the beneficial effects that:
1) the test device provided by the invention has the advantages of reasonable structure and low test cost, and can completely simulate and match the temperature and humidity environment requirements of the actual application occasions of the air treatment equipment and provide accurate test results. Through the setting of particle recovery clean system, can also realize test gas's pollution-free emission and handle, make this test device not only be applicable to the test of general air particle, more be applicable to the purification performance that uses bacterium, virus to adhere to the air particulate matter particle and detect as the air treatment unit of test object, ensure test device operation process's environmental friendliness simultaneously.
2) The pneumatic rotary seal air inlet valve of the inner chamber is provided with an air treatment pipeline, so that the initial environment of the inner chamber is clean air, particles in test gas of the inner chamber are only controlled by the particle concentration generator, the data of the purifying effect of the air purifying equipment to be detected on specific particles can be accurately obtained, and the reliability of the detection result is ensured. By adjusting the types and the concentrations of the prepared particles and combining air temperature and humidity adjustment and the running time of the air purification equipment to be detected, key index data such as purification rate, purification efficiency and the like of the air treatment equipment under different working conditions can be conveniently obtained, and tests of a plurality of performance detection projects can be completed by using a single set of test device.
3) The testing device provided by the invention adopts multi-system collaborative design, and the safety of the testing process is guaranteed. Through the linkage operation of all the devices and the system, the key performance data reflecting the purifying effect of the air purifying device is finally obtained, and the problem of performance detection of air processing equipment in the field of public health is solved.
Drawings
Fig. 1 is a schematic structural view of the present invention, in which the direction of arrows is the air flow direction.
The notations in the figures have the following meanings:
10-outer chamber 11-outer chamber air inlet 12-outer chamber air outlet
20-inner chamber 21-pneumatic rotary seal inlet valve 22-pneumatic rotary seal outlet valve 23-stirring fan
30-particle concentration generator 31-sample guide pipe 32-pollutant generation box 33-fan 34-electric air valve
40-air purification equipment to be tested
51-sampling hole 52-air particle concentration collector
60-air temperature and humidity simulation system 61-heating pipe 62-humidifying pipe 63-humidifying box 64-second fan 65-rotary sealing door
70-air treatment pipeline 71-pipeline air inlet 72-first fan 73-filter screen 731-medium effect filter screen 732-high effect filter screen
80-particle recovery and purification system 81-pressure steam sterilizer 82-air purifier for exhaust
91-wet and dry bulb temperature detector
92-compression condensing unit 93-cooling water pump 94-cooling tower 95-heat exchanger
Detailed Description
The technical scheme of the invention is more specifically explained by combining the following embodiments:
as shown in FIG. 1, the device for evaluating and testing the performance of the air purification equipment under all working conditions comprises an outer chamber 10 for manufacturing and sampling particle concentration and an inner chamber 20 arranged inside the outer chamber 10 for testing. The outer chamber 10 is made of flame-retardant polyurethane, the inner chamber 20 and the wall plate of the air processing pipeline 70 are made of stainless steel plates, and the bottom of the inner chamber is supported by a bracket, so that the inner chamber 20 is close to the center of the outer chamber 10, and the uniformity of the internal temperature is ensured as much as possible.
The outer chamber 10 is in communication with the environment via an outer chamber air inlet 11 and an outer chamber air outlet 12. The outside of nacelle air inlet 11 sets up air temperature and humidity analog system 60, and air temperature and humidity analog system 60 is including setting up heating pipe 61 and the humidifying pipe 62 in same enclosure, and the enclosure is direct to be connected with nacelle air inlet 11, and humidifying pipe 62 connects the humidification case 63 that sets up at the enclosure outside to the air that accords with test humiture condition is made. The second fan 64 is further arranged in the closed space, and the second fan 64 blows heat generated by the heating pipe 61 to the humidifying pipe 62 in a side direction for conveying air meeting the temperature and humidity testing requirements to the outer chamber 10 and the inner chamber 20. The enclosure is provided with a rotary sealing door 65 adjacent the second fan 64.
The inner chamber 20 has a space for accommodating the air purification equipment 40 to be tested, and further, a bracket for placing the air purification equipment 40 to be tested can be arranged in the inner chamber 20, so that the uniformity of the ambient temperature environment of the air purification equipment 40 to be tested is further improved; the inner chamber 20 is provided with a pneumatic rotary seal inlet valve 21 and a pneumatic rotary seal outlet valve 22 which are communicated with the outer chamber 10. An air processing pipeline 70 is further arranged on the outer side of the pneumatic rotary seal air inlet valve 21, and a first fan 72 and a filter screen 73 are sequentially arranged between a pipeline air inlet 71 of the air processing pipeline 70 and the pneumatic rotary seal air inlet valve 21 along the air flowing direction and used for filtering air which is conveyed to the outer cabin by the air temperature and humidity simulation system 60 and meets the requirements of temperature and humidity to enable the air to become clean air.
Further, in this embodiment, the filter screen 73 may be respectively provided with a medium-efficiency filter screen 731 and a high-efficiency filter screen 732, so as to improve the cleanliness of the air entering the inner chamber 20, and further reduce the influence of impurities in the air on the test.
The particle concentration generator 30 is arranged in the outer chamber 10, the particle concentration generator 30 is composed of a pollutant generating box 32 and a fan 33, the pollutant generating box 32 is an electric heating constant temperature incubator and can be used for cultivating and generating and preparing pollutant particles for experiments, a pollution source of particle types for replacement, such as a smoke generating device, a staphylococcus albus culture dish and other virus microorganism particles, is arranged in the electric heating constant temperature incubator 32, and the diameter of the prepared particles can be selected to be 0.3 mu m or more according to requirements. The contaminant generation tank 32 is connected to the inner chamber 20 through a sample guide pipe 31, and a fan 33 is provided at the rear side of the contaminant generation tank 32 to blow particles to the sample guide pipe 31 for transporting the manufactured particles to the inner chamber 20. An electric air valve 34 can be arranged at the joint of the sample guide pipe 31 and the pollutant generation box 32 for controlling the transportation of the particles.
The cabin wall of the inner cabin 20 is provided with a sampling hole 51, the sampling hole 51 is connected with an air particle concentration collector 52, and the air particle concentration collector 52 can use a particulate matter sampling analyzer or an impact type microorganism sampler and the like for analyzing the concentration of particles in the air treated by the air purification equipment 40 to be detected. And a stirring fan 23 is further arranged at the inner top of the inner chamber 20 and used for guaranteeing the uniformity of the temperature and humidity field of the test space in the inner chamber 20.
The particle recovery and purification system 80 is arranged at the air outlet 12 of the outer chamber, and the particle recovery and purification system 80 comprises a pressure steam sterilizer 81 and an air purifier 82 for exhaust, and is used for sterilizing and purifying the residual air after the test and then discharging the residual air, so that the environmental friendliness of the whole set of experimental device is ensured.
In order to accurately adjust the temperature and humidity to be tested, a wet-dry bulb temperature detector 91 is further arranged inside the inner chamber 20, wherein the wet bulb temperature of the wet-dry bulb temperature detector 91 is adjusted by the air temperature and humidity simulation system 60, and the dry bulb temperature of the wet-dry bulb temperature detector 91 is adjusted by the cooling system arranged outside the outer chamber 10 and the air heating pipe 61 in the air temperature and humidity simulation system 60.
The cooling system consists of a compression condensing unit 92, a cooling water pump 93, a cooling tower 94 and a heat exchanger 95, wherein the heat exchanger 95 is connected with the cooling tower 94 through the compression condensing unit 92 and the cooling water pump 93, and the heat exchanger 95 is arranged in a closed space of the air temperature and humidity simulation system 60 and is used for further adjusting the temperature and humidity of the air conveyed to the outer cabin 10 by the air temperature and humidity simulation system 60.
The method for testing the air purification equipment 40 to be tested by utilizing the air purification equipment all-condition performance evaluation testing device comprises the following steps:
s1, placing air purification equipment 40 to be tested in an inner cabin 20, starting an air temperature and humidity simulation system 60, setting required air temperature and humidity test conditions, preparing air meeting requirements, enabling the air to enter an outer cabin 10 from an air inlet 11 of the outer cabin, filtering the air by an air treatment pipeline 70 through a first fan 72 and a filter screen 73, and enabling the air to enter the inner cabin 20 through a pneumatic rotary sealing inlet valve 21.
In this process, the wet and dry bulb temperature detector 90 feeds back the cooling system to further regulate the temperature and humidity of the air according to the measured temperature value until the environmental parameters of the inner chamber 20 reach the set values.
S2, after the dry and wet bulb temperature detector 90 detects that the environmental parameters of the inner chamber 20 reach a set value, starting the particle concentration generator 30 to prepare particles for testing, enabling the particles to enter the inner chamber 20 through the sample guide pipe 31, and uniformly mixing with air in the inner chamber 20 under the driving of the stirring fan 23 to form an initial operating environment of the air purification equipment 40 to be tested;
s3, starting an air particle concentration collector 52, and recording the initial air particle concentration of the inner cabin 20 before purification;
s4, starting the air purification equipment 40 to be detected, stopping the machine after running for a set time, and continuously recording the air particle concentration of the purified inner cabin 20 by using the air particle concentration collector 52;
s5, calculating test data such as purification efficiency of the air purification equipment 40 to be detected according to the obtained numerical value for comparison analysis;
s6, after the test is finished, the air temperature and humidity simulation system 60, the particle concentration generator 30 and the air particle concentration collector 52 are closed, the test gas in the inner chamber 20 and the outer chamber 10 enters the particle recovery and purification system 80 through the outer chamber air outlet 12, and is treated by the pressure steam sterilizer 81 and the air purifier 82 for exhaust and then is discharged.
According to the air purification equipment all-working-condition performance test device and the test scheme provided by the invention, the key performance data reflecting different temperature and humidity conditions and air conditions, namely the air purification equipment purification effect under all working conditions, are finally obtained through the linkage operation of all equipment, and the problem of performance detection of air treatment equipment in the field of public health is solved.
The above is only a preferred embodiment of the invention, and is not intended to limit the invention; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The device for evaluating and testing the full-working-condition performance of the air purification equipment is characterized by comprising an outer cabin (10) for manufacturing and sampling particle concentration and an inner cabin (20) which is arranged inside the outer cabin (10) and used for testing; the outer chamber (10) is provided with a particle concentration generator (30), and the particle concentration generator (30) is connected with the inner chamber (20) through a sample guide pipe (31) and is used for conveying manufactured particles to the inner chamber (20); the interior cabin (20) has the space that holds air purification equipment (40) that awaits measuring, sampling hole (51) have been seted up on the bulkhead of interior cabin (20), air particle concentration collector (52) is connected in sampling hole (51) for the analysis is particle concentration in the air after air purification equipment (40) that awaits measuring is handled.
2. The air purification equipment full condition performance evaluation test device according to claim 1, wherein the inner chamber (20) is provided with a pneumatic rotary seal inlet valve (21) and a pneumatic rotary seal outlet valve (22) which are communicated with the outer chamber (10); the outer chamber (10) is provided with an outer chamber air inlet (11) and an outer chamber air outlet (12) which are communicated with the external environment.
3. The device for evaluating and testing the full-condition performance of the air purification equipment according to claim 2, wherein an air temperature and humidity simulation system (60) is arranged outside the air inlet (11) of the outer chamber, the air temperature and humidity simulation system (60) comprises a heating pipe (61) and a humidifying pipe (62) which are arranged in the same closed space, the closed space is connected with the air inlet (11) of the outer chamber, and the humidifying pipe (62) is connected with a humidifying box (63) arranged outside the closed space; and a second fan (64) is further arranged in the closed space, and a rotary sealing door (65) is arranged at the position, close to the second fan (64), of the closed space and communicated with the external environment.
4. The air purification equipment all-condition performance evaluation testing device as claimed in claim 3, characterized in that an air treatment pipeline (70) is further arranged outside the pneumatic rotary seal air inlet valve (21), and a first fan (72) and a filter screen (73) are sequentially arranged between the pipeline air inlet (71) of the air treatment pipeline (70) and the pneumatic rotary seal air inlet valve (21) along the air flowing direction.
5. The air purification equipment full-condition performance evaluation testing device as claimed in claim 1, wherein the particle concentration generator (30) is composed of a pollutant generation box (32) and a fan (33), the pollutant generation box (32) is an electric heating constant temperature incubator, a pollution source for replacing particle types is arranged in the electric heating constant temperature incubator, and the fan (33) blows the particles to the sample guide pipe.
6. The air purification equipment full condition performance evaluation test device according to claim 1, wherein the inner top position of the inner chamber (20) is further provided with a stirring fan (23).
7. The air purification equipment full condition performance evaluation test device according to any one of claims 3-6, wherein the outer chamber air outlet (12) is provided with a particle recovery purification system (80), and the particle recovery purification system (80) comprises a pressure steam sterilizer (81) and an air purifier (82) for exhaust.
8. The device for evaluating and testing the full-condition performance of the air purification equipment according to claim 7, wherein a dry-wet bulb temperature detector (91) is further arranged inside the inner chamber (20), wherein the wet bulb temperature of the dry-wet bulb temperature detector (91) is adjusted by the air temperature and humidity simulation system (60), and the dry bulb temperature of the dry-wet bulb temperature detector (91) is adjusted by a cooling system arranged outside the outer chamber (10) and a heating pipe (61) in the air temperature and humidity simulation system (60) together.
9. The device for evaluating and testing the full-condition performance of the air purification equipment according to claim 8, wherein the cooling system is composed of a compression and condensation unit (92), a cooling water pump (93), a cooling tower (94) and a heat exchanger (95), the heat exchanger (95) is connected with the cooling tower (94) through the compression and condensation unit (92) and the cooling water pump (93), and the heat exchanger (95) is arranged in a closed space of the air temperature and humidity simulation system (60) and used for adjusting the temperature and humidity of the air conveyed to the outer cabin (10) by the air temperature and humidity simulation system (60).
10. The testing method of the air purification equipment full-condition performance evaluation testing device as claimed in claim 9, characterized by comprising the following steps:
s1, placing air purification equipment (40) to be tested in an inner cabin (20), starting an air temperature and humidity simulation system (60), setting required air temperature and humidity test conditions, and preparing air meeting requirements and entering the inner cabin (20);
s2, after the dry-wet bulb temperature detector (90) detects that the environmental parameters of the inner chamber (20) reach set values, starting the particle concentration generator (30) to prepare particles for testing, entering the inner chamber (20) through the sample guide pipe (31) and uniformly mixing with air in the inner chamber (20);
s3, starting an air particle concentration collector (52) and recording the initial air particle concentration of the inner cabin (20) before purification;
s4, starting the air purification equipment (40) to be detected, stopping the machine after running for a set time, and recording the air particle concentration of the purified inner cabin (20);
s5, calculating the purification efficiency of the air purification equipment (40) to be detected according to the obtained numerical value;
s6, after the test is finished, the air temperature and humidity simulation system (60), the particle concentration generator (30) and the air particle concentration collector (52) are closed, the test gas in the inner chamber (20) and the outer chamber (10) enters the particle recovery and purification system (80) through the air outlet (12) of the outer chamber, and is treated by the pressure steam sterilizer (81) and the air purifier (82) for exhausting and then is discharged.
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| CN202111464771.2A CN114383989A (en) | 2021-12-03 | 2021-12-03 | Air purification equipment all-condition performance evaluation testing device and testing method |
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| CN202111464771.2A CN114383989A (en) | 2021-12-03 | 2021-12-03 | Air purification equipment all-condition performance evaluation testing device and testing method |
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