CN110107969B - Multifunctional air purifying device and method - Google Patents
Multifunctional air purifying device and method Download PDFInfo
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- CN110107969B CN110107969B CN201910395782.6A CN201910395782A CN110107969B CN 110107969 B CN110107969 B CN 110107969B CN 201910395782 A CN201910395782 A CN 201910395782A CN 110107969 B CN110107969 B CN 110107969B
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- 238000005507 spraying Methods 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 15
- 238000007791 dehumidification Methods 0.000 claims description 13
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Humidification (AREA)
Abstract
The invention provides a multifunctional air purifying device, which comprises: the device comprises a spray chamber and a refrigerating system, wherein an air inlet is formed in the spray chamber, an ultrasonic humidifier is arranged in an inner cavity of the spray chamber, the refrigerating system comprises an upper part and a lower part, the upper part is communicated with the spray chamber through an orifice, an evaporator and a condenser are arranged in the inner cavity of the upper part, and the evaporator is connected with the condenser through a capillary tube; the evaporator and the condenser are sequentially arranged from the orifice to the air outlet, and a compressor is arranged in the lower inner cavity; the compressor is connected with the evaporator and the condenser respectively. The invention also provides a multifunctional air purifying method, which does not need an air filter (aiming at PM 2.5) and an adsorbent (aiming at formaldehyde) in the conventional device, so that the problem that the conventional device needs to replace air filtering materials and the adsorbent periodically is solved, and meanwhile, the resistance of the air filter and the adsorbent is larger, so that the air purifying method can reduce the air flow resistance and the power consumption of a fan.
Description
Technical Field
The invention relates to a multifunctional air purifying device and method, and belongs to the field of air purifying application.
Background
In recent years, environmental air pollution is increasingly serious, and great potential safety hazards are caused to the physical health of people. The most common indoor air pollutants are PM2.5 and formaldehyde.
The human body has no filtering and blocking capability on PM2.5, can directly enter the human body lung, and causes human body lung lesions under the action of toxic substances, thereby causing various heart and lung dysfunction diseases, having great harm to human health and becoming one of important indexes for evaluating indoor air quality. Common indoor air purifiers employ PM2.5 purification techniques including HEPA filter technology and electrostatic precipitation technology. The HEPA adopts a physical method to directly intercept particle pollutants in the air, and has stable performance, high safety and convenient later maintenance. However, due to the influence of the superfine glass fiber filter material, the resistance of the filter is larger, so that the HEPA treatment air quantity is small and the energy consumption is large. HEPA needs to be replaced built-in filter screen regularly to avoid laying dust too much to block the filter screen and lead to PM2.5 filtration efficiency to reduce. The electrostatic precipitator is to apply high voltage power between two electrodes to form a strong electric field to generate positive corona discharge. When the dust-containing air flow passes through the ionization region, the polluted particles are ionized to have positive charges, and the positively charged particles are deposited on the dust collecting electrode under the action of coulomb force, so that the particles are separated from the air flow, and the effect of purifying the air is achieved. The electrostatic dust collection pressure loss is small, and the internal parts of the dust collector do not need to be repeatedly replaced. However, the dust remover is easy to generate ozone in the using process, and secondary pollution is caused indoors.
Formaldehyde is another common indoor air pollutant, has a strong stimulation effect on skin mucous membrane of people, is easy to cause damage to immune system and nervous system when being inhaled excessively, and seriously endangers the physical health of people. The indoor formaldehyde purification device commonly used at present adopts a physical adsorption method, a chemical reaction method, a photocatalyst method and the like to purify indoor formaldehyde. The physical adsorption method mainly uses substances with adsorption capacity such as active carbon to adsorb formaldehyde for purification, but desorption problem is easy to occur. The chemical reaction method adopts chemical reagent capable of reacting with formaldehyde to eliminate formaldehyde which is free in air, but new pollution is easy to generate in the chemical reaction process, and the reagent is inconvenient to obtain. The photocatalyst method uses a photo-semiconductor as a catalyst to oxidatively decompose formaldehyde into carbon dioxide and water, but the treatment effect of low-concentration formaldehyde in indoor air is poor.
In order to meet the comfort requirements of people on indoor environments, besides purifying indoor air, the indoor environment humidity is regulated. Currently, there are air purifiers for removing PM2.5 and formaldehyde, and various humidifiers and dehumidifiers, but there is no device having the four functions.
Accordingly, improvements in the art are needed.
Disclosure of Invention
The invention aims to provide a high-efficiency multifunctional air purifying device and a method.
In order to solve the technical problems, the invention provides a multifunctional air purifying device: comprises a spray chamber and a refrigeration system;
an air inlet is arranged on the spraying chamber; an ultrasonic humidifier is arranged in the inner cavity of the spraying chamber;
the refrigerating system comprises an upper part and a lower part, the upper part is communicated with the spraying chamber through an orifice, an evaporator and a condenser are arranged in an inner cavity of the upper part, and the evaporator is connected with the condenser through a capillary tube; the evaporator and the condenser are sequentially arranged from the orifice to the air outlet;
a compressor is arranged in the lower inner cavity; the compressor is connected with the evaporator and the condenser respectively.
As an improvement on the multifunctional air purifying device of the invention:
the air inlet is provided with a humidity sensor; a humidifier water tank connected with an ultrasonic humidifier is arranged in the inner cavity of the spray chamber; the humidity sensor is in signal connection with the ultrasonic humidifier.
As a further improvement of the multifunctional air purification device of the present invention:
an evaporator water receiving disc is arranged in the lower inner cavity and is positioned right below the evaporator.
As a further improvement of the multifunctional air purification device of the present invention:
and the air outlet is provided with a variable speed fan.
The invention also provides a multifunctional air purifying method, which comprises the following steps:
1) The high-temperature and high-pressure refrigerant vapor from the compressor enters the condenser to release heat to the air after condensation and purification, then turns into high-temperature and high-pressure refrigerant liquid, turns into low-temperature and low-pressure refrigerant wet vapor after capillary throttling, absorbs the heat of the humidified air in the evaporator to turn into refrigerant vapor, and then returns to the compressor to be compressed into high-temperature and high-pressure refrigerant vapor;
2) Indoor air enters the spraying chamber from the air inlet, and the relative humidity of the air is increased under the action of the ultrasonic humidifier to become humidified air;
3) The humidified air enters the evaporator through the orifice, is cooled and condensed by the refrigerant wet steam in the evaporator, then enters the condenser after being condensed and purified, is heated and warmed by the high-temperature high-pressure refrigerant steam in the condenser, and then flows out of the air outlet.
As an improvement of the multifunctional air purifying method of the invention:
in step 3), the humidity temperature of the air flowing out from the air outlet is the same as the temperature and humidity of the indoor air flowing in from the air inlet.
The multifunctional air purifying device and the method have the technical advantages that:
the multifunctional air purifying device has the advantages of simple structure, low manufacturing cost and operation cost, simple and convenient later maintenance, greatly reduced air resistance and no secondary pollution because a high-efficiency air filter is not needed, integrates the functions of PM2.5 purification, purification of formaldehyde and other polluted gases easily dissolved in water, air dehumidification and air humidification, and can realize the switching of different functions by controlling the operation of different components. Because of spraying and cooling, the treated air is moist and low-temperature, the evaporator of the refrigeration system is adopted for dehumidification, and then the air is heated by the condenser, so that the temperature and the humidity are basically kept unchanged after the air is purified.
The invention has the main advantages that:
1. the air filter (aiming at PM 2.5) and the adsorbent (aiming at formaldehyde) in the conventional device are not needed, and the problem that the conventional device needs to replace the air filter material and the adsorbent periodically is avoided;
2. meanwhile, as the resistance of the air filter and the adsorbent is larger, the invention can reduce the air flow resistance and reduce the power consumption of the fan;
3. simultaneously has 4 functional modes;
4. the cost is greatly lower than that of the conventional device (the conventional device is usually 3000-5000 yuan, and the cost of the invention only needs about 900 yuan)
5. The evaporator of the refrigeration system is adopted for dehumidification, and then the condenser is used for heating, so that the temperature and the humidity are basically kept unchanged after the air is purified (the relative humidity is reduced to a certain extent under the condition that the ultrasonic humidifier is closed).
Drawings
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a multifunctional air purifying device according to the present invention.
In the figure: 1-an air inlet 1; 2-a humidity sensor 2; 3-an ultrasonic humidifier 3; 4-a spray chamber 4; 5-humidifier water tank 5; 6-aperture 6; 7-an evaporator 7; 8-a capillary 8; 9-a condenser 9; 10-an evaporator drip tray 10; 11-a compressor 11; 12-a variable speed fan 12; 13-air outlet 13.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Example 1, a multifunctional air cleaning apparatus, as shown in fig. 1, includes an air inlet 1, a humidity sensor 2, an ultrasonic humidifier 3, a spray chamber 4, a humidifier water tank 5, an orifice 6, an evaporator 7, a capillary tube 8, a condenser 9, an evaporator water pan 10, a compressor 11, a variable speed fan 12, and an air outlet 13.
The multifunctional air purifying device is divided into two parts, the front part is a spray chamber 4, the rear part is a small refrigerating system consisting of an evaporator 7, a condenser 9, a compressor 11 and a capillary tube 8, the front part and the rear part are connected by an orifice 6,
the air inlet 1 is arranged on the spray chamber 4, the humidity sensor 2 is arranged on the air inlet 1 in the spray chamber 4, the ultrasonic humidifier 3 is arranged at the bottom of the spray chamber 4, the humidifier water tank 5 is arranged below the ultrasonic humidifier 3, and the humidifier water tank 5 provides a water source for the ultrasonic humidifier 3. The humidity sensor 2 is connected with the ultrasonic humidifier 3 in a signal way, and the ultrasonic humidifier 3 can be controlled to be opened and closed by the relative humidity measured by the humidity sensor 2.
In the PM2.5 purge mode, when the humidity sensor 2 detects that the relative humidity is lower than 45%, the ultrasonic humidifier 3 is operated, and when it is higher than 45%, the ultrasonic humidifier 3 is not operated. The reason is that when the relative humidity is high, the water vapor in the air is sufficient, a large amount of water vapor is condensed on the fine particles, and the PM2.5 purifying effect is good; otherwise, PM2.5 purification effect is poor. Secondly, when the relative humidity is below 45%, the human body feels dry, and at the moment, the ultrasonic humidifier 3 is started, so that the comfort of the human body can be improved. And when the relative humidity is higher than 45%, the PM2.5 purification mode actually plays a role in dehumidification (condensation dehumidification), and the comfort of a human body can be improved.
In the mode of purifying formaldehyde and other readily water-soluble polluted gases, the ultrasonic humidifier 3 must continue to operate regardless of the relative humidity detected by the humidity sensor 2, and cannot perform the function of purifying formaldehyde and other readily water-soluble polluted gases.
In the air dehumidifying mode, the ultrasonic humidifier 3 is turned off, which would otherwise affect the dehumidifying effect.
In the air humidification mode, when the humidity sensor 2 detects that the relative humidity is lower than 45%, the ultrasonic humidifier 3 is operated, and when it is higher than 45%, the ultrasonic humidifier 3 is not operated.
The small refrigerating system arranged at the rear part is divided into an upper part and a lower part, the upper part is communicated with the spraying chamber 4 through an orifice 6, an evaporator 7, a condenser 9, a capillary tube 8 and a variable speed fan 12 are arranged in an inner cavity of the upper part, an air outlet 13 is arranged at the upper part, the variable speed fan 12 is arranged on the air outlet 13, and the evaporator 7 and the condenser 9 are sequentially arranged from the orifice 6 to the air outlet 13 at the upper part; the lower part is provided with an evaporator water pan 10 and a compressor 11, the compressor 11 is connected with the evaporator 7 and the condenser 9 through copper pipes, and the condenser 9 is connected with the evaporator 7 through a capillary pipe 8.
The high-temperature and high-pressure refrigerant vapor from the compressor 11 enters the condenser 9 through the connecting copper pipe to release heat, then turns into high-temperature and high-pressure refrigerant liquid, and turns into low-temperature and low-pressure refrigerant wet vapor after being throttled by the capillary tube 8, and the heat of the absorbed air in the evaporator 7 turns into refrigerant vapor which then returns to the compressor 11 to complete the circulation of the refrigerating system.
Both the air inlet 1 and the air outlet 13 are provided with louvers or gratings. The shutter or the grille of the air inlet 1 is opened to supplement water for the humidifier water tank 5, and a drain pipe and a drain valve are arranged at the lowest position of the evaporator water receiving disc 10 to regularly drain condensed water.
PM2.5 purification:
indoor air enters the spray chamber 4 from the air inlet 1 under the action of the variable speed fan 12, the relative humidity of the air increases under the action of the ultrasonic humidifier 3, and the ultrasonic humidifier 3 is provided with a water source by the humidifier water tank 5.
The humidified air enters the evaporator 7 through the orifice 6, is cooled and condensed by the refrigerant wet steam in the evaporator 7, and the water steam in the air is condensed into water by taking fine particles as condensation nuclei, continuously grows, collides and adheres, finally drops in the evaporator water pan 10, eliminates PM2.5 in the air, and dehumidifies the air. The evaporator pan 10 may be manually cleaned and drained as necessary. Then the air after condensation and purification enters a condenser 9, is heated by high-temperature high-pressure refrigerant steam in the condenser 9, keeps the humidity and temperature of the air basically consistent with the temperature and humidity of indoor air flowing in from an air inlet 1, and then flows out from an air outlet 13;
after the ultrasonic humidifier 3 is humidified, the relative humidity of the air is increased, the temperature is also reduced, the temperature of the air is reduced after the air is cooled and dehumidified by the evaporator 7, the moisture content is reduced, but the relative humidity is increased, the condenser 9 is a simple constant moisture content heating and heating process, the temperature is increased after heating, the moisture content is unchanged, the relative humidity is reduced, and finally the humidity temperature of the air flowing out from the air outlet 13 is basically consistent with the temperature and humidity of the indoor air flowing in from the air inlet 1.
Purification of formaldehyde and other readily water-soluble contaminant gases: indoor air enters the spraying chamber 4 from the air inlet 1 under the action of the variable speed fan 12, fine fog drops are fully distributed in the air under the action of the ultrasonic humidifier 3, the specific surface area of the fine fog drops is large, the contact area with the air is increased, and formaldehyde gas can be absorbed by the fog drops due to the fact that the formaldehyde gas is easily dissolved in water, so that the formaldehyde concentration in the air is reduced.
The humidified air enters the evaporator 7 through the orifice 6, is cooled and condensed by the refrigerant wet steam in the evaporator 7, dehumidifies the air, and the condensed water drops into the evaporator water receiving disc 10. The evaporator pan 10 may be manually cleaned and drained as necessary. The condensed and purified air then passes through the condenser 9, is heated by the high-temperature and high-pressure refrigerant vapor in the condenser 9, and the humidity and temperature of the air are kept substantially the same as the temperature and humidity of the indoor air flowing in from the air inlet 1, and finally flows out from the air outlet 13. The method is also applicable to purification of other easily water-soluble polluted gases. This function must always keep the ultrasonic humidifier 3 on.
And (3) dehumidifying air: the ultrasonic humidifier 3 is turned off, and the apparatus has only a dehumidifying function at this time. The air to be dehumidified enters the spray chamber 4 from the air inlet 1 by the variable speed fan 12, and the air leaves the spray chamber 4 through the orifice 6 without being humidified since the ultrasonic humidifier 3 is turned off. The relative humidity decreases.
Then the air enters the evaporator 7 for dehumidification, and the temperature of the evaporator 7 is lower than the dew point temperature of the air, so that moisture in the air is separated out, and the separated water finally drops into the evaporator water pan 10. After dehumidification, the air dried at low temperature passes through the condenser 9 and is heated by the high-temperature high-pressure refrigerant steam in the condenser 9, so that the temperature of the air at the inlet and the outlet is basically kept consistent. Finally, the dry air flows out from the air outlet 13. The relative humidity value measured by the humidity sensor 2 can be used to manually or automatically control the compressor 11, and when the relative humidity is low, the compressor 11 and the variable speed fan 12 can be stopped.
Air humidification: the compressor 11 is turned off and the device has only a humidifying function at this time. Air to be humidified enters the spray chamber 4 from the air inlet 1 under the action of the variable speed fan 12, and the ultrasonic humidifier 3 sprays and humidifies the air. The humidified air passes through the evaporator 7 and the condenser 9, which have been stopped, through the orifice 6, and finally flows out of the air outlet 13. The relative humidity value measured by the humidity sensor 2 can be used for manually or automatically controlling the ultrasonic humidifier 3, and when the relative humidity is high, the operation of the ultrasonic humidifier 3 and the variable speed fan 12 can be stopped.
When the temperature of the air containing PM2.5 and other polluted gases is lower than the dew point temperature, moisture in the air is condensed, at the moment, the condensation process of the particulate matters serving as condensation nuclei is accelerated, meanwhile, the particle size of the particulate matters is continuously increased, and after the particle size is increased to a certain degree, the particulate matters collide, adhere, fall and other phenomena can occur. Through these processes the particulate matter can be removed from the air. Based on the principle, the invention adopts the ultrasonic humidifier 3 to humidify, and uses the refrigerating system to condense and purify the humidified air. In experimental tests, the condensation purification method (PM 2.5 purification and purification of formaldehyde and other readily water-soluble polluted gases) of the invention can be used for purifying PM2.5 concentration from 999 mug/m in a closed space within 55 minutes 3 Reduced to 59.1 mug/m 3 The purification rate per minute was 1.71%. It was also found in the experimental tests that the concentration of formaldehyde was 0.7mg/m in 30 minutes by spraying with the ultrasonic humidifier 3 in the closed space and then condensing at low temperature 3 The purification rate was 3.33% per minute, which was reduced to 0. The principle is that formaldehyde is easy to dissolve in water, when water mist exists in the air, formaldehyde is dissolved in the water mist, and the principle is also applicable to other polluted gases which are easy to dissolve in water. In this closed space, a common activated carbon air purification device was used, and the total purification rate of 24 hours was 85% and the purification rate per minute was only 0.06%.
Finally, it should also be noted that the above list is merely a few specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (4)
1. The multifunctional air purifying method using the multifunctional air purifying device is characterized in that:
the multifunctional air purifying device comprises a spraying chamber (4) and a refrigerating system;
an air inlet (1) is arranged on the spraying chamber (4); an ultrasonic humidifier (3) is arranged in the inner cavity of the spraying chamber (4);
the refrigerating system comprises an upper part and a lower part, wherein the upper part is communicated with the spraying chamber (4) through an orifice (6), an evaporator (7) and a condenser (9) are arranged in an inner cavity of the upper part, and the evaporator (7) is connected with the condenser (9) through a capillary tube (8); the evaporator (7) and the condenser (9) are sequentially arranged from the orifice (6) to the air outlet (13);
a compressor (11) is arranged in the lower inner cavity; the compressor (11) is respectively connected with the evaporator (7) and the condenser (9);
the air inlet (1) is provided with a humidity sensor (2); a humidifier water tank (5) connected with the ultrasonic humidifier (3) is arranged in the inner cavity of the spray chamber (4); the humidity sensor (2) is in signal connection with the ultrasonic humidifier (3); the ultrasonic humidifier (3) can be controlled to be opened and closed by the relative humidity measured by the humidity sensor (2);
an evaporator water receiving disc (10) is arranged in the lower inner cavity, and the evaporator water receiving disc (10) is positioned right below the evaporator (7);
the air outlet (13) is provided with a variable speed fan (12);
the multifunctional air purification method comprises the following steps:
1) The high-temperature and high-pressure refrigerant vapor from the compressor (11) enters the condenser (9) to release heat to the condensed and purified air, then turns into high-temperature and high-pressure refrigerant liquid, throttles by the capillary tube (8) and turns into low-temperature and low-pressure refrigerant wet vapor, absorbs the heat of the humidified air in the evaporator (7) to turn into refrigerant vapor, and then returns to the compressor (11) to be compressed into high-temperature and high-pressure refrigerant vapor;
2) Indoor air enters the spraying chamber (4) from the air inlet (1), and the relative humidity of the air is increased under the action of the ultrasonic humidifier (3) to become humidified air;
3) The humidified air enters an evaporator (7) through an orifice (6), is cooled and condensed by refrigerant wet steam in the evaporator (7), then enters a condenser (9), is heated and warmed by high-temperature high-pressure refrigerant steam in the condenser (9), and then flows out from an air outlet (13);
the functional modes are as follows:
PM2.5 purification:
indoor air enters the spraying chamber (4) from the air inlet (1) under the action of the variable speed fan (12), the relative humidity of the air is increased under the action of the ultrasonic humidifier (3), and the ultrasonic humidifier (3) is provided with a water source by the humidifier water tank (5);
the humidified air enters the evaporator (7) through the orifice (6), is cooled and condensed by refrigerant wet steam in the evaporator (7), and water vapor in the air is condensed into water by taking fine particles as condensation nuclei, continuously grows, collides and is adhered, finally drops into the evaporator water pan (10), eliminates PM2.5 in the air, and dehumidifies the air; the air after condensation and purification enters a condenser (9), is heated by high-temperature high-pressure refrigerant steam in the condenser (9) to raise the temperature, so that the humidity and the temperature of the air are basically consistent with those of indoor air flowing in from an air inlet (1), and then flows out from an air outlet (13);
after the ultrasonic humidifier (3) is humidified, the relative humidity of air is increased, the temperature is reduced, the temperature of the air is reduced after the air is cooled and dehumidified by the evaporator (7), the moisture content is reduced, but the relative humidity is increased, the condenser (9) is a constant moisture content heating and heating process, the temperature is increased after heating, the moisture content is unchanged, the relative humidity is reduced, and finally the humidity temperature of the air flowing out of the air outlet (13) is basically consistent with the temperature and humidity of indoor air flowing in from the air inlet (1);
purification of readily water-soluble polluted gases including formaldehyde:
indoor air enters the spray chamber (4) from the air inlet (1) under the action of the variable speed fan (12), fine fog drops are fully distributed in the air under the action of the ultrasonic humidifier (3), the specific surface area of the fine fog drops is large, the contact area with the air is increased, and as the water-soluble polluted gas containing formaldehyde can be dissolved in water, the fog drops can absorb the water-soluble polluted gas containing formaldehyde, so that the concentration of the water-soluble polluted gas containing formaldehyde in the air is reduced;
the humidified air enters the evaporator (7) through the orifice (6), is cooled and condensed by the refrigerant wet steam in the evaporator (7), dehumidifies the air, and the condensed water drops into the evaporator water pan (10); the air after condensation and purification passes through a condenser (9), is heated by high-temperature high-pressure refrigerant steam in the condenser (9) to raise the temperature, so that the humidity and the temperature of the air are basically consistent with the temperature and the humidity of indoor air flowing in from an air inlet (1), and finally flows out from an air outlet (13);
the ultrasonic humidifier (3) must be kept on all the time in the functional mode;
and (3) dehumidifying air:
closing the ultrasonic humidifier (3), wherein the device only has a dehumidification function; the air to be dehumidified enters the spraying chamber (4) from the air inlet (1) under the action of the variable speed fan (12), and the relative humidity is reduced as the ultrasonic humidifier (3) is closed, and the air leaves the spraying chamber (4) through the orifice (6) without being humidified;
then the air enters an evaporator (7) for dehumidification, and as the temperature of the evaporator (7) is lower than the dew point temperature of the air, the moisture in the air can be separated out, and the separated water finally drops into an evaporator water receiving disc (10); after dehumidification, the air dried at low temperature passes through the condenser (9) and is heated by high-temperature high-pressure refrigerant steam in the condenser (9), so that the temperature of the air at the inlet and the outlet is basically kept consistent; finally, the dry air flows out from the air outlet (13); the relative humidity value measured by the humidity sensor (2) is used for controlling the compressor (11), and when the relative humidity is low, the compressor (11) and the variable speed fan (12) are stopped;
air humidification:
the compressor (11) is turned off, and the device has only a humidifying function at the moment; the air to be humidified enters the spraying chamber (4) from the air inlet (1) under the action of the variable speed fan (12), and the ultrasonic humidifier (3) sprays and humidifies the air; the humidified air passes through the evaporator (7) and the condenser (9) which are stopped to run through the orifice (6), and finally flows out of the air outlet (13); the relative humidity value measured by the humidity sensor (2) is used for controlling the ultrasonic humidifier (3), and when the relative humidity is high, the ultrasonic humidifier (3) and the variable speed fan (12) can be stopped.
2. The multifunctional air purification method according to claim 1, characterized in that:
in step 3), the humidity temperature of the air flowing out from the air outlet (13) is the same as the temperature and humidity of the indoor air flowing in from the air inlet (1).
3. The multifunctional air purification method according to claim 2, characterized in that:
in the PM2.5 purification mode, when the humidity sensor (2) detects that the relative humidity is lower than 45%, the ultrasonic humidifier (3) works, and when the relative humidity is higher than 45%, the ultrasonic humidifier (3) does not work; the reason is that when the relative humidity is high, the water vapor in the air is sufficient, a large amount of water vapor is condensed on the fine particles, and the PM2.5 purifying effect is good; otherwise, PM2.5 purification effect is poor; secondly, when the relative humidity is below 45%, the human body feels dry, and at the moment, the ultrasonic humidifier (3) is started, so that the comfort of the human body can be improved; when the relative humidity is higher than 45%, the PM2.5 purification mode actually plays a role in dehumidification, so that the comfort of a human body can be improved;
in the mode of purifying formaldehyde and other easily water-soluble polluted gases, the ultrasonic humidifier (3) must continuously work regardless of the relative humidity detected by the humidity sensor (2), or else the purification effect of formaldehyde and other easily water-soluble polluted gases cannot be achieved;
in the mode of air dehumidification, the ultrasonic humidifier (3) needs to be closed, otherwise the dehumidification effect is affected;
in the air humidification mode, when the humidity sensor (2) detects that the relative humidity is lower than 45%, the ultrasonic humidifier (3) is operated, and when the relative humidity is higher than 45%, the ultrasonic humidifier (3) is not operated.
4. A multifunctional air cleaning method according to claim 3, characterized in that:
when the temperature of air containing PM2.5 and other polluted gases is lower than the dew point temperature, moisture in the air is condensed, at the moment, the condensation process of the particulate matters serving as condensation nuclei is accelerated, meanwhile, the particle size of the particulate matters is continuously increased, and after the particle size is increased to a certain degree, the particulate matters collide, adhere, fall and other phenomena can occur; through these processes the particulate matter can be removed from the air.
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