CN113335030A - Method for purifying ambient air in public transport means - Google Patents
Method for purifying ambient air in public transport means Download PDFInfo
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- CN113335030A CN113335030A CN202110683550.8A CN202110683550A CN113335030A CN 113335030 A CN113335030 A CN 113335030A CN 202110683550 A CN202110683550 A CN 202110683550A CN 113335030 A CN113335030 A CN 113335030A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000012080 ambient air Substances 0.000 title claims description 15
- 238000004887 air purification Methods 0.000 claims abstract description 94
- 230000001954 sterilising effect Effects 0.000 claims abstract description 79
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0071—Electrically conditioning the air, e.g. by ionizing
- B60H3/0078—Electrically conditioning the air, e.g. by ionizing comprising electric purifying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0608—Filter arrangements in the air stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0675—Photocatalytic filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0683—Filtering the quality of the filter or the air being checked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
- B64D2013/0603—Environmental Control Systems
- B64D2013/0651—Environmental Control Systems comprising filters, e.g. dust filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
- B64D2013/0603—Environmental Control Systems
- B64D2013/067—Environmental Control Systems with air ionizers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides an environmental air purification method in a public transport means, which comprises the public transport means, wherein the public transport means is internally provided with air purification equipment, a personnel existence detection system, PM2.5 concentration monitoring equipment, personnel crowdedness detection equipment and a control system, as well as a plasma generator and a UV lamp, the personnel existence detection system, the PM2.5 concentration monitoring equipment and the personnel crowdedness detection equipment respectively detect whether people exist, the PM2.5 concentration and the personnel crowdedness in the public transport means and send detection data to the control system, and the control system judges the detection data and judges whether to start the air purification system, the plasma generator and the ultraviolet sterilization lamp, so that the service life of a filter element of the air purification system is prolonged.
Description
Technical Field
The invention relates to the field of air purification, in particular to a method for purifying the environment air in a public transport means.
Background
Public transport means such as subways, public buses, trains, airplanes and the like are used as carriers for people to flow, heavy transportation tasks are borne, and meanwhile, important responsibility of public safety is borne. Because people in public transport means flow densely, the space is narrow and closed, the phenomena of insufficient ventilation and serious pollution to the internal air environment generally exist, people inevitably have carriers of viruses (such as influenza virus, new coronavirus, varicella virus, measles virus, mumps virus and the like) which can be transmitted through droplets and air, the health and safety of passengers have great risks, the satisfaction degree of the passengers on the air quality in a carriage is improved, and the risk of aerosol virus aggregation and transmission is reduced, which is very necessary.
Air purification equipment on the existing market has single function and has the following defects:
firstly, no matter no load or full-load of public transport means, all be in the start-up state, air purification equipment long-time operation can lead to air purification equipment life-span to shorten.
Secondly, can not adjust air purification equipment's purification speed according to PM 2.5's concentration condition intelligence, life such as filter core, filter screen in the air purification equipment is short.
And thirdly, the mode of virus killing and sterilization is lacked, and the virus killing and sterilization can not be intelligently selected according to the PM2.5 concentration condition and the number of people.
Disclosure of Invention
Aiming at the technical problem, the invention provides an internal environment air purification method of a public transport means, wherein an air purification system, a control system and PM2.5 concentration monitoring equipment are arranged in the public transport means, and the PM2.5 concentration monitoring equipment detects the concentration of PM2.5 and sends the detected concentration of PM2.5 to the control system; the control system receives PM2.5 concentration data, judges the PM2.5 concentration, and starts the air purification system if the PM2.5 concentration reaches a set value; and if the PM2.5 concentration does not reach the set value, closing the air purification system.
The air quality in the public transport means is not only related to the flow of people, but also related to the quality of outside air, and under the condition of better air quality, in order to avoid the no-load operation of the air purification system, the invention is provided with PM2.5 concentration monitoring equipment to detect the concentration of PM2.5 in real time, and if the concentration of PM2.5 reaches a set value, the air purification system is started; and if the PM2.5 concentration does not reach the set value, closing the air purification system. The service life of the filter element of the air purification system is effectively prolonged; secondly, the high efficiency of the air purification system can be kept; thirdly, the difficult problem of starting air purification system in advance has been solved, and for the passenger, just get into the vehicle and just can enjoy the air that has purified, has promoted passenger's comfort level.
Further, a personnel presence detection system is arranged in the public transport means, the personnel presence detection system detects whether people are present in the public transport means and sends a detection result to the control system, and if the detection result is that no people are present, the control system closes the air purification equipment; and if the detection result is that people exist, the control system sends a standby instruction to the air purification system, and the air purification system executes the standby instruction.
At present, the existing public transport means is in a starting state no matter in no load or full load, and the service life of the air purification equipment is shortened. The invention sets a personnel existence detection system in the public transport means, the personnel existence detection system detects whether people exist in the public transport means, if the detection result is that no person exists, the control system closes the air purification equipment; and if the detection result is that people exist, the control system starts the air purification system. Further, the air purification system is activated to be in a standby state.
In combination with the use scene, after a driver enters the public transport means, the personnel existence detection system detects the existence of people in the public transport means, and the control system starts the air purification system. When the driver leaves the public transport means, the personnel existence detection system detects that no person exists in the public transport means, and the control system closes the air purification system.
On one hand, the invention realizes intellectualization and saves energy; on the other hand, the service life of the air purification system, the filter element in the air purification system and the disinfection and sterilization equipment can be prolonged.
Further, the air purification system comprises a fan, and under the action of the fan, air flows through the air purification system to complete air purification; the control system for receiving and judging the PM2.5 concentration comprises the following steps:
the fan is provided with gears with unequal rotating speeds, and each rotating speed gear corresponds to a PM2.5 concentration setting interval;
after the control system receives the PM2.5 concentration data, firstly, judging a PM2.5 concentration setting interval in which the received PM2.5 concentration data is located; secondly, giving a corresponding rotating speed gear according to the judged PM2.5 concentration setting interval, and generating a corresponding rotating speed gear instruction;
then, the control system sends the generated rotating speed gear instruction to the fan; and finally, the fan executes the rotating speed corresponding to the rotating speed gear, and corresponding wind speed is given.
At present, the fan of the air purification equipment on the market has only one gear, and different gears can not be adjusted and selected according to the PM2.5 concentration condition. The fan is provided with gears with unequal rotating speeds, and each rotating speed gear corresponds to a PM2.5 concentration setting interval;
if the concentration of PM2.5 is more than 100ug/m3, the fan executes a high-speed gear;
if the concentration of PM2.5 is 36ug/m 3-100 ug/m3, the fan executes a middle rotating speed gear;
if the concentration of PM2.5 is less than or equal to 35ug/m3, the fan executes a low-rotation-speed gear;
the fan has high rotating speed and high wind speed, can reduce the amount of ozone generated by the ultraviolet lamp, and further prevent passengers from generating mass ill effects such as dizziness, aversion and the like under the condition of high personnel concentration. But the fan has high rotating speed, high wind speed and poor filtering effect.
The fan is provided with gears with unequal rotating speeds, each rotating speed gear corresponds to a PM2.5 concentration setting interval, different wind speeds can be selected according to actual conditions, the service life of the filter can be prolonged with low energy consumption, and meanwhile, the filtering effect of the filter can be comprehensively improved (the lower the wind speed is, the better the filtering effect of the filter is).
In addition, when the number of people in the vehicle is large, more fine particles and PM2.5 are generated, the PM2.5 is often accompanied with more passengers, and the invention also starts the disinfection device.
Furthermore, a disinfection and sterilization system is also arranged in the public transport means. And a person crowdedness degree detection device is also arranged in the public transport means. The personnel crowding degree detection equipment detects the personnel crowding degree and sends the detected personnel crowding degree data to the control system; the control system receives the crowd degree data, judges the crowd degree data, and starts the disinfection system if the crowd degree reaches a set value; if the crowdedness does not reach the set value, the sterilization system is closed.
Further, the step of receiving the people crowding degree data by the control system and judging the crowding degree data comprises the following steps:
the personnel crowding degree detection equipment detects the personnel crowding degree and sends the detected personnel crowding degree data to the control system; the control system receives the crowd degree data of the personnel, judges the crowd degree data, and starts the antivirus and sterilization system and simultaneously starts the air purification system if the crowd degree reaches a set value; if the crowdedness does not reach the set value, the sterilization system is closed.
Furthermore, the sterilizing system also comprises a plasma generator and a plasma generator power supply system;
setting the condition of starting the plasma generator as a congestion degree data interval B;
after receiving the people crowding degree data, the control system firstly divides the crowding degree data into intervals;
and if the congestion degree data is in the congestion degree data interval B, the control system sends a starting instruction to the plasma generator power supply system, the plasma generator power supply system supplies power to the plasma generator, and the plasma generator is started to sterilize.
Furthermore, the disinfection system also comprises a UV lamp and a UV lamp power supply system;
setting the condition of starting the UV lamp as a congestion degree data interval A;
after receiving the people crowding degree data, the control system firstly divides the crowding degree data into intervals; and if the congestion degree data is in the congestion degree data interval A, the control system sends a starting instruction to the UV lamp power supply system, the UV lamp power supply system supplies power to the UV lamp, and the UV lamp is started to sterilize.
The sterilization equipment adopts a plasma generator to sterilize. After the crowdedness degree of people reaches a set value, the plasma generator is started, and meanwhile, the air purification system is started. The plasma sterilization is rapid and thorough, the sterilization rate of natural bacteria in the air reaches 100% in 30 minutes, and the sterilization rate of the natural bacteria in the air reaches more than 99% in 40 minutes.
Furthermore, the plasma generator is adopted to generate plasma, the aggregation of dust and planktonic bacteria can be accelerated, after the machine is started for 45 minutes, the air-borne bacteria is less than or equal to 15 CFU/vessel.30 MIN, the planktonic bacteria in the air is less than or equal to 800/m & gt 3, the air cleanliness reaches more than 30 ten thousand grades (ISO 9 grade standard), and the highest air cleanliness can reach one hundred grades. In addition, the plasma can also eliminate toxic and harmful gases and peculiar smell in the air, has the function of automatically adjusting oxygen, and can automatically adjust the air quality to the optimal state. However, plasma sterilization also has the following disadvantages:
on the one hand, plasma sterilization must last for a period of time before it can function. Secondly, the plasma can not adsorb the particle particles, the plasma contains a large amount of active oxygen particles, high-energy free radicals and other components, the plasma is modified by oxidation reaction with protein and nucleic acid substances in bacteria, mould, spores and viruses, and the breakdown etching generated by high-kinetic-energy electrons and ions leads various microorganisms in the air to die.
In order to solve the defects of the plasma generator, the invention also adopts an ultraviolet sterilization lamp (UV lamp) for sterilization, when the personnel crowding degree detection equipment detects the personnel crowding degree, the detected personnel crowding degree data is sent to the control system; the control system receives the crowdedness data of the personnel, judges the crowdedness data, starts the ultraviolet sterilizing lamp (UV lamp) if the crowdedness reaches a value set by starting the ultraviolet sterilizing lamp, and closes the ultraviolet sterilizing lamp (UV lamp) if the crowdedness does not reach the set value.
Further, the value set to activate the ultraviolet sterilizing lamp (UV lamp) is greater than or equal to the value set to activate the plasma generator.
That is, the control system starts the plasma generator according to the congestion degree, and then starts the UV lamp after the congestion degree is increased to a certain value;
setting: the condition for starting the UV lamp is a congestion degree data interval A, and the condition for starting the plasma generator is a congestion degree data interval B; then: a is more than or equal to B.
Further, A is more than or equal to 2 persons per square meter; b is more than or equal to 0.5 person per square meter
Ultraviolet light is an electromagnetic wave and the scale of visible light is between 400nm and 780 nm. The wavelength of the ultraviolet light is shorter than the wavelength of the visible light, and is approximately between 100 nanometers and 400 nanometers. The uv light is divided into 3 regions, UVA: 315nm-400 nm. UVB: 280nm-315 nm. UVC: 100nm-280 nm. The UV lamp mainly adopts UVC wave band, and only the wave band has sterilization and disinfection. Although ultraviolet sterilization lamps (UV lamps) have an anti-virus function, ultraviolet lamp irradiation has a side effect at the same time. The damage of the ultraviolet sterilizing lamp to human bodies is proportional to the radiation intensity of ultraviolet rays and the radiation time, namely, the larger the radiation dose (the larger the radiation intensity, the longer the radiation time), the more serious the damage to the human bodies is. When a human body is shone for a short time, papules with reddened skin, pruritus and allergic symptoms can be caused. Prolonged exposure can cause severe damage to skin tissue, meeting dose and prolonged exposure to cancer of the skin. In addition, ultraviolet radiation is harmful to human eyes, and a short time of irradiation with a large dose of ultraviolet radiation can cause red swelling, lacrimation and eye openness of eyes, and long-time exposure to ultraviolet radiation can cause cataract and even blindness. Third, the uv germicidal lamp, when in use, can cause oxygen in the air to generate ozone, which can cause, among other things, a faint, unpleasant, undesirable reverberation. In a closed compartment (such as a high-speed rail, a coach bus and an airplane), the ozone concentration is increased by starting the UV lamp for a long time, so that passengers feel dizzy and dislike, and if the phenomena of dizziness and dislike occur to a driver, the driving safety is also endangered in a serious case.
The public transport means is internally provided with personnel crowdedness detection equipment, the personnel crowdedness detection equipment detects the personnel crowdedness, and when the crowdedness reaches a value set by starting the ultraviolet sterilizing lamp, the ultraviolet sterilizing lamp is started, and meanwhile, the air purification system is started; if the crowdedness does not reach the set value, the ultraviolet sterilizing lamp is turned off. Further, the value set to activate the ultraviolet sterilizing lamp (UV lamp) is greater than the value set to activate the plasma generator. The problem of traffic disinfection and sterilization is solved, the harm to people caused by the shining dose of the ultraviolet sterilizing lamp is solved, and the adverse effects of dizziness, aversion and the like of passengers are avoided.
On the one hand, adopt ultraviolet sterilization lamp (UV lamp) to guarantee even plasma sterilization does not exert efficiency because of failing to last a period of time, the disinfection of UV lamp sterilization in addition, on the other hand, the flow of air has been guaranteed to the synchronous start air purification system for air cycle, and then has strengthened the disinfection and sterilization effect. Thirdly, the plasma generator and the UV lamp are arranged at the upstream of the photocatalyst filter screen, the photocatalyst filter screen is formed by mixing and processing nanometer powder and a plurality of nanometer semiconductor media sensitive to light to ensure sufficient ventilation and contact, and then mixing and processing the nanometer powder and the carrier, thereby not only effectively removing carbon monoxide, nitrogen oxides, hydrocarbon, aldehydes, benzene and other harmful gases and peculiar smell in the air, but also decomposing the harmful gases into harmless CO2 and H2O, and further having the sterilization function. But also can decompose the ozone generated by the ultraviolet sterilizing lamp. Plasma generator produces plasma, can be to accelerating dust and planktonic bacteria reunion, and with photocatalyst filter screen combined action can make reunion dust and planktonic bacteria adsorbed by photocatalyst filter screen, improved purifying effect and sterilization effect, photocatalyst filter screen still disinfects the planktonic bacteria of reunion simultaneously, has further improved the effect of extinction.
Furthermore, the air purification system comprises a complete machine frame, a bottom plate, a cover plate, a filtering system, a fan, fan control equipment and a disinfection and sterilization system; the cover plate covers the whole machine frame, the bottom plate is fixed on the whole machine frame, the cover plate is provided with an air inlet, the bottom plate or a side plate of the whole machine frame is provided with an air outlet, the filtering system is arranged in the whole machine frame, and under the action of the fan, air is discharged from the air outlet after sequentially passing through the air inlet and the filtering system;
the filter system comprises a pre-filter, a gaseous molecular pollutant filter screen and a photocatalyst filter screen, wherein the pre-filter is arranged at the lower side of the cover plate, the gaseous molecular pollutant filter screen is arranged at the downstream of the pre-filter, and the photocatalyst filter screen is arranged at the downstream of the gaseous molecular pollutant filter screen;
the sterilizing system comprises a plasma generator and a UV lamp, wherein the plasma generator and the UV lamp are arranged at the upstream of the photocatalyst filter screen.
The bottom of the whole machine frame is provided with an air duct, and the UV lamp and the plasma generator are arranged in the air duct in the whole machine frame; the UV lamp and the plasma generator are arranged at the upstream of the photocatalyst filter screen.
The air purification system also comprises an electrostatic filter and a fan operation timing system, wherein the electrostatic filter is arranged at the downstream of the pre-filter and at the upstream of the gaseous molecular pollutant filter screen;
firstly, large-particle dirt such as hair is filtered by the pre-filtering net, so that the phenomenon that the substances enter SE (selective emitter) super-static electricity to cause discharge arcing to cause faults is prevented; then, after SE (selective emitter) super-static electricity, fine particles are filtered and sterilized at the same time, so that the rear-section gaseous pollutant filter screen is protected from dust pollution, and the formaldehyde and toluene removal efficiency is reduced.
The gaseous molecular pollutant filter screen is a high-efficiency active substance capable of decomposing molecules of various gaseous pollutants, is formed by loading the active substance on a carrier by adopting a special process and forming, and can effectively purify gaseous pollutants such as formaldehyde, toluene and the like in a vehicle.
The photocatalyst filter screen is arranged in UV lamp low reaches and is guaranteeing that photocatalyst filter core surface irradiation intensity satisfies the demand of disinfecting when, and the photocatalyst can also decompose the ozone that ultraviolet ray sterilization lamp produced, and in addition, photocatalyst filter screen honeycomb structure can also be fine the convection current in the say gas play the effect of flow equalizing.
Furthermore, the electrostatic filter is linked with the fan, the electrostatic filter cleaning preset time is arranged in the fan operation timing system, the fan operation time is counted and accumulated in the fan operation timing system, and when the fan operation time accumulation reaches the electrostatic filter cleaning preset time, the fan operation timing system sends out an electrostatic filter cleaning prompt to remind that the electrostatic filter is cleaned.
And a timer zero clearing module is also arranged in the fan operation timing system, after the electrostatic filter is cleaned, the timer zero clearing module is triggered, and the fan operation time length stored by the fan operation timing system is reset.
Because the environment of the air purification equipment is complex and the electrostatic filter needs to be cleaned regularly, the fan operation timing system is arranged, and the air purification equipment can remind that the electrostatic filter is cleaned regularly. And meanwhile, a timer zero clearing module is also arranged, and after the electrostatic filter is cleaned, the timer is reset to prepare for the next electrostatic filter in advance.
Has the advantages that:
(1) the invention sets a personnel existence detection system in the public transport means, the personnel existence detection system detects whether people exist in the public transport means, if the detection result is that no person exists, the control system closes the air purification equipment; and if the detection result is that people exist, the control system starts the air purification system. Further, the air purification system is activated to be in a standby state. The energy can be saved, and the service lives of the air purification system, the filter element and the disinfection and sterilization component in the air purification system can be prolonged.
(2) PM2.5 concentration monitoring equipment is arranged to detect the concentration of PM2.5 in real time, and if the concentration of PM2.5 reaches a set value, an air purification system is started; if the concentration of PM2.5 does not reach the set value, the air purification system is closed, and the service life of the filter element of the air purification system is effectively prolonged.
(3) The method comprises the steps that personnel crowding degree detection equipment is arranged, the personnel crowding degree detection equipment detects the personnel crowding degree, the crowding degree reaches a set value, further, an ultraviolet sterilization lamp (UV lamp) is started to set a value which is larger than a value set by starting a plasma generator, the ultraviolet sterilization lamp is started, and meanwhile, an air purification system is started; if the crowdedness does not reach the set value, the ultraviolet sterilizing lamp is turned off. The problem of disinfection and sterilization in the vehicle is solved, the harm to people caused by the shining dose of the ultraviolet sterilizing lamp is solved, and the adverse effects of dizziness, aversion and the like of passengers are avoided.
(4) The plasma generator and the UV lamp are arranged at the upstream of the photocatalyst filter screen, and the photocatalyst filter screen not only can effectively remove harmful gases and peculiar smell such as carbon monoxide, nitrogen oxides, hydrocarbon, aldehydes, benzene and the like in the air, but also has a sterilization function and can decompose ozone generated by the ultraviolet sterilization lamp.
(5) The fan can select different rotational speeds according to actual conditions, and the passenger is less, when PM2.5 concentration is low, low rotational speed, extension equipment life, and the passenger is more, when PM2.5 concentration is higher, medium-speed or high rotational speed, the wind speed is very fast, when accelerating air-purifying, can also reduce ultraviolet lamp and produce ozone, and then, prevent under the higher circumstances of personnel's concentration, lead to the passenger to produce the mass-produced harmful effects such as dizzy, disgust.
Detailed Description
Example 1: the embodiment provides an ambient air purification method in a public transport means, which comprises the public transport means, wherein the public transport means is internally provided with air purification equipment, a personnel presence detection system and a control system, the personnel presence detection system detects whether a person is present in the public transport means and sends a detection result to the control system, and if the detection result is that the person is not present, the control system closes the air purification equipment; if the detection result is that people exist, the control system starts the air purification system, and the air purification system is in a standby state.
In the embodiment, a personnel existence detection system is arranged in the public transport means, the personnel existence detection system detects whether people exist in the public transport means, and if the detection result is that no people exist, the control system closes the air purification equipment; and if the detection result is that people exist, the control system starts the air purification system. Further, the air purification system is activated to be in a standby state. The invention can save energy, and prolong the service life of the air purification system, and the filter element and the disinfection component in the air purification system.
Example 2: the embodiment provides an environmental air purification method in a public transport means on the basis of embodiment 1, wherein PM2.5 concentration monitoring equipment is further arranged in the public transport means, and the air purification equipment comprises an air purification system and a disinfection and sterilization system;
the PM2.5 concentration monitoring equipment detects the concentration of PM2.5 and sends the detected concentration of PM2.5 to the control system; the control system receives PM2.5 concentration data, judges the PM2.5 concentration, and starts the air purification system if the PM2.5 concentration reaches a set value; and if the PM2.5 concentration does not reach the set value, closing the air purification system.
In this embodiment, a PM2.5 concentration monitoring device is provided to detect the concentration of PM2.5 in real time, and if the concentration of PM2.5 reaches a set value, the air purification system is started; if the PM2.5 concentration does not reach the set value, the air purification system is closed, the service life of the filter element of the air purification system is effectively prolonged, and the filter element of the air purification system is prevented from being damaged in advance.
Example 3: in this embodiment, on the basis of embodiment 2, a method for purifying ambient air in a public transportation vehicle is provided, and a device for detecting a degree of congestion of people is further provided in the public transportation vehicle. The personnel crowding degree detection equipment detects the personnel crowding degree and sends the detected personnel crowding degree data to the control system; the control system receives the crowd degree data of the personnel, judges the crowd degree data, and starts the antivirus and sterilization system and simultaneously starts the air purification system if the crowd degree reaches a set value; if the crowdedness does not reach the set value, the sterilization system is closed.
Further, the step of receiving the people crowding degree data by the control system and judging the crowding degree data comprises the following steps:
the sterilizing equipment comprises a UV lamp, a UV lamp power supply system, a plasma generator and a plasma generator power supply system;
the condition for starting the UV lamp is a congestion degree data interval A, and the condition for starting the plasma generator is a congestion degree data interval B;
after receiving the people crowding degree data, the control system firstly divides the crowding degree data into intervals;
if the congestion degree data is in the congestion degree data interval A, the control system sends a starting instruction to the UV lamp power supply system, the UV lamp power supply system supplies power to the UV lamp, and the UV lamp is started to sterilize;
and if the congestion degree data is in the congestion degree data interval B, the control system sends a starting instruction to the plasma generator power supply system, the plasma generator power supply system supplies power to the plasma generator, and the plasma generator is started to sterilize. Further, A is more than or equal to B;
the sterilization equipment adopts a plasma generator to sterilize. After the crowdedness degree of people in the vehicle reaches a set value, the plasma generator is started, and meanwhile, the air purification system is started.
The plasma generator of the invention can quickly and thoroughly sterilize the plasma, the sterilization rate of natural bacteria in the air can reach 100 percent in 30 minutes, and the sterilization rate of the natural bacteria in the air can reach more than 99 percent in 40 minutes. After the machine is started for 45 minutes, the air-borne bacteria is less than or equal to 15 CFU/dish 30MIN, the number of the planktonic bacteria in the air is less than or equal to 800/m & 3, and the air cleanliness reaches more than 30 ten thousand grades (ISO 9 grade standard) and can reach one hundred grades at most. In addition, the plasma generated by the plasma generator can eliminate toxic and harmful gases and peculiar smell in the air in the vehicle, has the function of automatically adjusting oxygen, and can automatically adjust the air quality in the vehicle to the optimal state.
Further, the embodiment is also provided with an ultraviolet sterilization lamp (UV lamp), when the people crowding degree detection equipment detects the people crowding degree in the vehicle, and the detected people crowding degree data is sent to the control system; the control system receives the crowdedness data of the personnel, judges the crowdedness data, starts the ultraviolet sterilizing lamp (UV lamp) if the crowdedness reaches a value set by starting the ultraviolet sterilizing lamp, and closes the ultraviolet sterilizing lamp (UV lamp) if the crowdedness does not reach the set value.
Further, the value set to activate the ultraviolet sterilizing lamp (UV lamp) is greater than the value set to activate the plasma generator. The public transport means is internally provided with personnel crowdedness detection equipment, the personnel crowdedness detection equipment detects the crowdedness of personnel, the crowdedness reaches a set value, and further, when the set value for starting an ultraviolet sterilizing lamp (UV lamp) is larger than the set value for starting a plasma generator, the ultraviolet sterilizing lamp is started, and meanwhile, an air purification system is started; if the crowdedness does not reach the set value, the ultraviolet sterilizing lamp is turned off.
The UV lamp, i.e. the ultraviolet sterilization lamp, is an electromagnetic wave, and the scale of visible light is between 400 nanometers and 780 nanometers. The wavelength of the ultraviolet light is shorter than the wavelength of the visible light, and is approximately between 100 nanometers and 400 nanometers. The uv light is divided into 3 regions, UVA: 315nm-400 nm. UVB: 280nm-315 nm. UVC: 100nm-280 nm. The UV lamp mainly adopts a UVC wave band, and only the wave band has the function of sterilization. Although ultraviolet sterilization lamps (UV lamps) have an anti-virus function, ultraviolet lamp irradiation has a side effect at the same time. The damage of the ultraviolet sterilizing lamp to human bodies is proportional to the radiation intensity of ultraviolet rays and the radiation time, namely, the larger the radiation dose (the larger the radiation intensity, the longer the radiation time), the more serious the damage to the human bodies is. When a human body is shone for a short time, papules with reddened skin, pruritus and allergic symptoms can be caused. Prolonged exposure can cause severe damage to skin tissue, meeting dose and prolonged exposure to cancer of the skin. In addition, ultraviolet radiation is harmful to human eyes, and a short time of irradiation with a large dose of ultraviolet radiation can cause red swelling, lacrimation and eye openness of eyes, and long-time exposure to ultraviolet radiation can cause cataract and even blindness. When the ultraviolet sterilizing lamp is used, oxygen in air can generate ozone, and bad reverberation of dizziness and aversion can be caused.
The logical relation of the UV lamp and the plasma start not only solves the problem of sterilization in vehicles, but also solves the damage of the ultraviolet sterilizing lamp to people by shining dose, and avoids the bad effects of dizziness, aversion and the like of passengers.
Furthermore, the invention is also provided with a photocatalyst filter screen, and the UV lamp and the plasma generator are arranged at the upstream of the photocatalyst filter screen. The plasma generator and the UV lamp are arranged at the upstream of the photocatalyst filter screen, and the photocatalyst filter screen not only can effectively remove harmful gases and peculiar smell such as carbon monoxide, nitrogen oxides, hydrocarbon, aldehydes, benzene and the like in the air, but also can decompose the harmful gases into harmless CO2 and H2O, and also has a sterilization function, and can decompose ozone generated by the ultraviolet sterilization lamp. Further avoiding the bad effects of dizziness, aversion and the like caused by overhigh ozone concentration.
Further, the air purification system comprises a fan, and under the action of the fan, air flows through the air purification system to complete air purification;
the control system for receiving and judging the PM2.5 concentration comprises the following steps:
the fan is provided with gears with unequal rotating speeds, and each rotating speed gear corresponds to a PM2.5 concentration setting interval;
after the control system receives the PM2.5 concentration data, firstly, judging a PM2.5 concentration setting interval in which the received PM2.5 concentration data is located; secondly, giving a corresponding rotating speed gear according to the judged PM2.5 concentration setting interval, and generating a corresponding rotating speed gear instruction;
then, the control system sends the generated rotating speed gear instruction to the fan; and finally, the fan executes the rotating speed corresponding to the rotating speed gear, and corresponding wind speed is given. According to different PM2.5 concentrations, the fan executes different rotating speeds, and the air quality in the vehicle can be improved.
The fan is provided with gears with unequal rotating speeds, and each rotating speed gear corresponds to a PM2.5 concentration setting interval;
if the concentration of PM2.5 is more than 100ug/m3, the fan executes a high-speed gear;
if the concentration of PM2.5 is 36ug/m 3-100 ug/m3, the fan executes a middle rotating speed gear;
if the concentration of PM2.5 is less than or equal to 35ug/m3, the fan executes a low-rotation-speed gear;
further, in the above-mentioned case,
the fan rotational speed of high rotational speed gear does: 5000. + -. 10% RPM
The fan rotational speed of well rotational speed gear does: 3500. + -. 10% RPM
The fan rotational speed of low rotational speed gear does: 2000. + -. 10% RPM
The fan is provided with gears with unequal rotating speeds, different wind speeds can be selected according to actual conditions, and energy conservation is facilitated.
The high rotational speed of fan, the wind speed is very fast, can reduce ultraviolet lamp and produce ozone, and then, prevents under the higher condition of personnel's concentration, leads to the passenger to produce the bad influence of mass property such as dizzy, aversion.
Furthermore, the air purifier equipment comprises a complete machine frame, a bottom plate, a cover plate, a filtering system, a fan, fan control equipment and sterilizing equipment; the cover plate covers the whole machine frame, the bottom plate is fixed on the whole machine frame, the cover plate is provided with an air inlet, the bottom plate or a side plate of the whole machine frame is provided with an air outlet, the filtering system is arranged in the whole machine frame, and under the action of the fan, air is discharged from the air outlet after sequentially passing through the air inlet and the filtering system;
the filter system comprises a pre-filter, a gaseous molecular pollutant filter screen and a photocatalyst filter screen, wherein the pre-filter is arranged at the lower side of the cover plate, the gaseous molecular pollutant filter screen is arranged at the downstream of the pre-filter, and the photocatalyst filter screen is arranged at the downstream of the gaseous molecular pollutant filter screen; the plasma generator and the UV lamp are arranged at the upstream of the photocatalyst filter screen.
The bottom of the whole machine frame is provided with an air duct, and the UV lamp and the plasma generator are arranged in the air duct in the whole machine frame; the UV lamp and the plasma generator are arranged at the upstream of the photocatalyst filter screen.
The air purifier equipment also comprises an electrostatic filter and a fan operation timing system, wherein the electrostatic filter is arranged at the downstream of the pre-filter and at the upstream of the gaseous molecular pollutant filter screen;
firstly, large-particle dirt such as hair is filtered by the pre-filtering net, so that the phenomenon that the substances enter SE (selective emitter) super-static electricity to cause discharge arcing to cause faults is prevented; then, after SE (selective emitter) super-static electricity, fine particles are filtered and sterilized at the same time, so that the rear-section gaseous pollutant filter screen is protected from dust pollution, and the formaldehyde and toluene removal efficiency is reduced.
The gaseous molecular pollutant filter screen is a high-efficiency active substance capable of decomposing molecules of various gaseous pollutants, is formed by loading the active substance on a carrier by adopting a special process and forming, and can effectively purify gaseous pollutants such as formaldehyde, toluene and the like in a vehicle.
The photocatalyst filter screen is arranged in UV lamp low reaches and is guaranteeing that photocatalyst filter core surface irradiation intensity satisfies the demand of disinfecting when, and the photocatalyst can also decompose the ozone that ultraviolet ray sterilization lamp produced, and in addition, photocatalyst filter screen honeycomb structure can also be fine the convection current in the say gas play the effect of flow equalizing.
Furthermore, the electrostatic filter is linked with the fan, the electrostatic filter cleaning preset time is arranged in the fan operation timing system, the fan operation time is counted and accumulated in the fan operation timing system, and when the fan operation time accumulation reaches the electrostatic filter cleaning preset time, the fan operation timing system sends out an electrostatic filter cleaning prompt to remind that the electrostatic filter is cleaned.
And a timer zero clearing module is also arranged in the fan operation timing system, after the electrostatic filter is cleaned, the timer zero clearing module is triggered, and the fan operation time length stored by the fan operation timing system is reset.
Because the environment of the air purification equipment is complex and the electrostatic filter needs to be cleaned regularly, the fan operation timing system is arranged, and the air purification equipment can remind that the electrostatic filter is cleaned regularly. And meanwhile, a timer zero clearing module is also arranged, and after the electrostatic filter is cleaned, the timer is reset to prepare for the next electrostatic filter in advance.
Example 4: the embodiment provides a method for purifying the ambient air in the public transport means on the basis of the embodiment 2, wherein the sterilizing equipment comprises a UV lamp and a plasma generator; if the crowdedness reaches a value set by starting the plasma generator, starting the plasma generator; when the crowdedness reaches a value set by starting the UV lamp, starting the UV lamp; starting the plasma generator to set a value less than a value set for starting the UV lamp;
the personnel crowding degree detection equipment detects the personnel crowding degree and sends the detected personnel crowding degree data to the control system; the control system receives the crowding degree data of the personnel, judges the crowding degree data, and starts the plasma generator and simultaneously starts the air purification system to keep the UV lamp off if the crowding degree reaches a value set by starting the plasma generator;
the real-time personnel crowding degree detection equipment detects the crowding degree of personnel, when the crowding degree reaches or is higher than a value set by starting the UV lamp, the UV lamp is started, meanwhile, the plasma generator is kept started, and the air purification system is kept started;
the real-time personnel crowding degree detection equipment detects the crowding degree, and when the crowding degree reaches a value lower than a value set by starting a UV lamp and higher than a value set by starting a plasma generator, the UV lamp is turned off, the plasma generator is kept started at the same time, and an air purification system is kept started;
the real-time personnel crowding degree detection equipment detects the crowding degree, and when the crowding degree reaches a value lower than that set by the plasma generator, the plasma generator is turned off, and the air purification system is kept started;
the personnel existence detection system detects whether a person exists in the public transport means, and if the detection result is that the person does not exist, the control system closes the air purification system.
Claims (10)
1. A method for purifying ambient air in a public transport means comprises the public transport means, and is characterized in that: an air purification system, a control system and PM2.5 concentration monitoring equipment are arranged in the public transport means, the PM2.5 concentration monitoring equipment detects the concentration of PM2.5 and sends the detected concentration of PM2.5 to the control system; the control system receives PM2.5 concentration data, judges the PM2.5 concentration, and starts the air purification system if the PM2.5 concentration reaches a set value; and if the PM2.5 concentration does not reach the set value, closing the air purification system.
2. The method for purifying ambient air inside a mass transit vehicle according to claim 1, wherein: the public transport means is also internally provided with a personnel presence detection system, the personnel presence detection system detects whether people are present in the public transport means and sends a detection result to the control system, and if the detection result is that no people are present, the control system closes the air purification equipment; and if the detection result is that people exist, the control system sends a standby instruction to the air purification system, and the air purification system executes the standby instruction.
3. The method for purifying ambient air inside a mass transit vehicle according to claim 1, wherein: and a disinfection and sterilization system is also arranged in the public transport means.
4. The method for purifying ambient air inside a mass transit vehicle according to claim 1, wherein:
the air purification system comprises a fan, and under the action of the fan, air flows through the air purification system to complete air purification;
the control system for receiving and judging the PM2.5 concentration comprises the following steps:
the fan is provided with gears with unequal rotating speeds, and each rotating speed gear corresponds to a PM2.5 concentration setting interval;
after the control system receives the PM2.5 concentration data, firstly, judging a PM2.5 concentration setting interval in which the received PM2.5 concentration data is located; secondly, giving a corresponding rotating speed gear according to the judged PM2.5 concentration setting interval, and generating a corresponding rotating speed gear instruction;
then, the control system sends the generated rotating speed gear instruction to the fan; and finally, the fan executes the rotating speed corresponding to the rotating speed gear, and corresponding wind speed is given.
5. A method for purifying ambient air inside a mass transit vehicle according to claim 3, wherein: a person crowdedness degree detection device is also arranged in the public transport means; the personnel crowding degree detection equipment detects the personnel crowding degree and sends the detected personnel crowding degree data to the control system; the control system receives the crowd degree data, judges the crowd degree data, and starts the disinfection system if the crowd degree reaches a set value; if the crowdedness does not reach the set value, the sterilization system is closed.
6. The method of purifying ambient air inside a mass transit vehicle according to claim 5, wherein: the sterilizing system comprises a plasma generator and a plasma generator power supply system;
setting the condition of starting the plasma generator as a congestion degree data interval B;
after receiving the people crowding degree data, the control system firstly divides the crowding degree data into intervals;
and if the congestion degree data is in the congestion degree data interval B, the control system sends a starting instruction to the plasma generator power supply system, the plasma generator power supply system supplies power to the plasma generator, and the plasma generator is started to sterilize.
7. The method for purifying ambient air inside a mass transit vehicle according to claim 6, wherein said control system receives the congestion degree data of the persons, and the judging of the congestion degree data comprises the steps of:
the disinfection system also comprises a UV lamp and a UV lamp power supply system;
setting the condition of starting the UV lamp as a congestion degree data interval A;
after receiving the people crowding degree data, the control system firstly divides the crowding degree data into intervals;
and if the congestion degree data is in the congestion degree data interval A, the control system sends a starting instruction to the UV lamp power supply system, the UV lamp power supply system supplies power to the UV lamp, and the UV lamp is started to sterilize.
8. The method for purifying ambient air inside a mass transit vehicle according to claim 7, wherein: the control system starts the plasma generator according to the crowding degree condition, and then starts the UV lamp after the crowding degree is increased to a certain value;
setting: the condition for starting the UV lamp is a congestion degree data interval A, and the condition for starting the plasma generator is a congestion degree data interval B; then: a is more than or equal to B.
9. The method of purifying ambient air inside a mass transit vehicle according to claim 6, wherein: the air purification system comprises a complete machine frame, a bottom plate, a cover plate, a filtering system, a fan, fan control equipment and a disinfection and sterilization system; the cover plate covers the whole machine frame, the bottom plate is fixed on the whole machine frame, the cover plate is provided with an air inlet, the bottom plate or a side plate of the whole machine frame is provided with an air outlet, the filtering system is arranged in the whole machine frame, and under the action of the fan, air is discharged from the air outlet after sequentially passing through the air inlet and the filtering system;
the filter system comprises a pre-filter, a gaseous molecular pollutant filter screen and a photocatalyst filter screen, wherein the pre-filter is arranged at the lower side of the cover plate, the gaseous molecular pollutant filter screen is arranged at the downstream of the pre-filter, and the photocatalyst filter screen is arranged at the downstream of the gaseous molecular pollutant filter screen; the sterilizing system comprises a UV lamp and a plasma generator;
the bottom of the whole machine frame is provided with an air duct, and the UV lamp and the plasma generator are arranged in the air duct in the whole machine frame.
10. The method for purifying ambient air inside a mass transit vehicle according to claim 9, wherein: the air purifier equipment also comprises an electrostatic filter and a fan operation timing system, wherein the electrostatic filter is arranged at the downstream of the pre-filter and at the upstream of the gaseous molecular pollutant filter screen;
the electrostatic filter is linked with the fan, the electrostatic filter cleaning preset time is arranged in the fan operation timing system, the fan operation time is counted and accumulated in the fan operation timing system, and when the fan operation time accumulation reaches the electrostatic filter cleaning preset time, the fan operation timing system sends an electrostatic filter cleaning prompt to remind that the electrostatic filter is cleaned;
and a timer zero clearing module is also arranged in the fan operation timing system, after the electrostatic filter is cleaned, the timer zero clearing module is triggered, and the fan operation time length stored by the fan operation timing system is reset.
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