CN109999660B - Indoor air centralized purification device and control method - Google Patents
Indoor air centralized purification device and control method Download PDFInfo
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- CN109999660B CN109999660B CN201910416483.6A CN201910416483A CN109999660B CN 109999660 B CN109999660 B CN 109999660B CN 201910416483 A CN201910416483 A CN 201910416483A CN 109999660 B CN109999660 B CN 109999660B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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- B01J38/00—Regeneration or reactivation of catalysts, in general
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/02—Heat treatment
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/12—Treating with free oxygen-containing gas
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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
- F24F13/28—Arrangement or mounting of filters
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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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- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
- F24F8/26—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media using ozone
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2258/00—Sources of waste gases
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Abstract
The utility model provides an indoor air centralized purification device, includes casing, wind gap, electric control valve, fan, air quality test probe, dust purification module, catalyst and regeneration module, anion generator, wire and controller, and electric control valve, fan, air quality test probe and anion generator link to each other with the controller through the wire respectively, and catalyst and regeneration module include gaseous pollutant decomposition catalyst, external heating frame, inside hot plate, ozone generator. The indoor air centralized purification device and the control method divide the indoor air purification and the outdoor air purification into two modules, purify the indoor and outdoor air pollutant states, improve the purification efficiency, set up a catalyst and a regeneration module, the catalyst is heated on line, and decompose and desorb VOCs adsorbed in the catalyst pore canal under the action of ozone, so that the VOCs decomposition catalyst can be regenerated on line, secondary pollution is prevented, and the service life of the catalyst is prolonged.
Description
Technical Field
The invention belongs to the technical field of indoor air purification, and particularly relates to an indoor air centralized purification device and a control method.
Background
In recent years, with the development of social economy, the material consumption level of residents is continuously improved, and on the other hand, the problem of indoor air pollution is more and more paid attention to. The traditional air purifier is only used for simply circularly filtering indoor air, and fresh air cannot be supplemented. The existing indoor fresh air purification system is designed into an internal and external circulation mode, outdoor fresh air can be supplemented or indoor air can be circularly purified as required, but the outdoor fresh air purification and the indoor air circulation purification adopt a set of purification filter screens, because the outdoor air and the indoor air are different in pollutants, the outdoor air pollutants are mainly PM2.5 dust particles, the indoor air pollutants except PM2.5 dust also contain a large amount of decoration pollutants, VOCs (volatile organic chemicals) such as benzene, formaldehyde and toluene, the applicability of the single set of purification filter screens is poor, the pollutants cannot be removed in a targeted manner, the filter screens with different functions are used for superposition purification at present, the running resistance of equipment is increased, the filter screens with different functions are easy to cross-pollute, and the service life of the filter screens is shortened.
Aiming at the VOCs gaseous pollutants such as indoor formaldehyde, toluene, benzene and the like, porous materials such as molecular sieves and activated carbon are mainly adopted for physical adsorption at present, but along with the extension of the running time of equipment, the porous materials are released to cause secondary pollution if not timely replaced after being saturated, the porous materials are subjected to catalytic modification in the prior art, and the porous materials are used for catalytic decomposition of the pollutants while adsorbing the gaseous pollutants, but because the catalyst has a certain active service time, the catalyst is easy to deactivate after a period of time, the deactivated catalyst loses catalytic performance, the catalyst needs to be taken out for activation or replacement, the use cost is increased, if the catalyst is not timely activated or replaced, and the adsorbed VOCs gaseous pollutants escape to cause secondary pollution.
Disclosure of Invention
Aiming at the technical problems, the invention discloses a centralized indoor air purification device and a control method, which improve the purification efficiency, and a catalyst and a regeneration module are arranged, so that VOCs catalyst can be regenerated on line, secondary pollution is prevented, and the service life of the catalyst is prolonged.
The technical scheme of the invention is that the indoor air centralized purifying device comprises a shell, an air port, an electric regulating valve, a fan, an air quality detecting probe, a dust purifying module, a catalyst and regeneration module, a negative ion generator, a wire and a controller, wherein the electric regulating valve, the fan, the air quality detecting probe and the negative ion generator are respectively connected with the controller through the wire;
the casing includes upper casing, lower casing, upper casing access hole, lower casing access hole and middle partition. The air port comprises an outdoor fresh air inlet, a catalyst regenerated air outlet, an indoor fresh air outlet and an indoor circulating air port, the electric regulating valve comprises an outdoor fresh air inlet regulating valve, a regenerated air outlet regulating valve, an indoor fresh air outlet regulating valve, an indoor circulating air port regulating valve and an operating state regulating valve, the fan comprises a fresh air fan, an indoor circulating fan and a catalyst regenerated fan, the air quality detection probe comprises an outdoor air quality detection probe and an indoor air quality detection probe, the dust purification module comprises a fresh air purification coarse filter screen, a high-efficiency filter screen and an indoor air purification filter screen, and the catalyst and regeneration module comprises a gaseous pollutant decomposition catalyst, an external heating frame, an internal heating plate and an ozone generator;
the upper shell access hole is positioned at the upper part of the upper shell, the upper shell access hole is internally over against the dust purification module, the lower shell access hole is positioned at the lower shell part, the lower shell access hole is internally over against the catalyst module, the outdoor fresh air inlet and the indoor fresh air outlet are positioned at the two sides of the upper shell, the catalyst regenerated air outlet and the indoor circulating air inlet are positioned at the two sides of the lower shell, the outdoor fresh air inlet regulating valve is positioned in the outdoor fresh air inlet, the regenerated air outlet regulating valve is positioned in the catalyst regenerated air outlet, the indoor fresh air outlet regulating valve is positioned in the indoor fresh air outlet, the indoor circulating air inlet regulating valve is positioned in the indoor circulating air inlet, the running state regulating valve is positioned at the side of the middle partition close to the fresh air inlet, the fresh air fan and the indoor circulating fan are positioned in the upper shell, the fresh air fan is positioned at the two sides of the dust purification module, the outdoor fresh air inlet and the indoor air quality detection probe is positioned at the two sides of the indoor fresh air outlet, the dust purification module is positioned at the middle part of the upper shell, the purifying coarse air filter screen and the indoor air purification filter screen are positioned at the two sides of the high-efficiency filter screen, the catalyst and the regeneration module is positioned at the middle of the lower shell, the gaseous pollutant decomposition catalyst is filled in the external heating frame, and the gaseous pollutant decomposition catalyst is distributed at the inside the heating plate is positioned at the side close to the indoor circulating air inlet.
The further air quality detection probe is an integrated probe, and can detect PM2.5, PM10, formaldehyde, toluene, benzene and VOCs pollutants simultaneously.
The catalyst is prepared from porous material including molecular sieve and active carbon, noble metal catalyst or metal oxide catalyst, pt, pd and Rh catalyst, and Cu and Mn oxide catalyst.
Further, the surface of the fresh air purification coarse filter screen is subjected to antibacterial treatment by spraying an antibacterial agent, and the surface of the indoor air purification filter screen is subjected to hydrophobic and oleophobic modification.
The control method of the indoor air centralized purifying device comprises manual control and automatic control, wherein the manual control comprises a fresh air supplementing mode, an indoor circulating mode and a catalyst regeneration mode, the automatic control is automatically calculated by a controller, and the three modes are switched according to the calculation result.
In a further fresh air supplementing mode, the fresh air fan is started, the indoor circulating fan and the catalyst regeneration fan are closed, the outdoor fresh air inlet regulating valve and the indoor fresh air outlet regulating valve are opened, the regenerated air outlet regulating valve, the indoor circulating air outlet regulating valve and the running state regulating valve are closed, and the negative ion generator is opened.
In a further indoor circulation mode, the indoor circulation fan is started, the fresh air fan and the catalyst regeneration fan are closed, the indoor fresh air outlet regulating valve, the indoor circulation air outlet regulating valve and the running state regulating valve are opened, the outdoor fresh air inlet regulating valve and the regenerated air outlet regulating valve are closed, the anion generator is opened, and the external heating frame, the internal heating plate and the ozone generator are closed.
In a further catalyst regeneration mode, the catalyst regeneration fan is started, the indoor circulating fan and the fresh air fan are closed, the regenerated air outlet regulating valve is opened, the outdoor fresh air inlet regulating valve, the indoor fresh air outlet regulating valve, the indoor circulating air outlet regulating valve and the running state regulating valve are closed, and the external heating frame, the internal heating plate and the ozone generator are opened.
The fresh air supplementing mode and the catalyst regenerating mode can be started simultaneously, the fresh air fan and the catalyst regenerating fan are started simultaneously, the indoor circulating fan is closed, the outdoor fresh air inlet regulating valve, the regenerated air outlet regulating valve and the indoor fresh air outlet regulating valve are opened, the indoor circulating air outlet regulating valve and the running state regulating valve are closed, and the external heating frame, the internal heating plate and the ozone generator are opened.
Under further automatic control, the switching conditions of each mode are: when the concentration of the outdoor PM2.5 is less than the concentration of the indoor PM2.5, a fresh air supplementing mode is started; when the outdoor PM2.5 concentration is more than the indoor PM2.5 concentration, an indoor circulation mode is started; the indoor circulation mode is started for more than 300 hours, and the catalyst regeneration mode is started.
The beneficial effects are that:
the indoor air centralized purification device and the control method divide the purification of indoor air and the purification of outdoor air into two modules, different purification modules are adopted aiming at indoor and outdoor air pollution types, and under a fresh air supplementing mode, outdoor air enters the room, because the outdoor air pollutant types are mainly PM2.5 dust particles, a filter screen with a filtering function is mainly a fresh air purification coarse filter screen and a high-efficiency filter screen, and fresh air is sent into the room after PM2.5 dust particles are removed from the outdoor air. In the indoor circulation mode, indoor air is circularly purified, indoor air pollutants except PM2.5 dust particles also contain a large amount of VOCs and the like, and the indoor air purification filter screen, the high-efficiency filter screen and the gaseous pollutant decomposition catalyst mainly play a role in purification at the moment, and the indoor air purification filter screen and the high-efficiency filter screen are used for removing indoor PM2.5 particles, and the gaseous pollutant decomposition catalyst is used for removing indoor VOCs harmful gas. The catalyst regeneration module is arranged, after the device runs for a certain time in an indoor circulation mode, an external heating frame and an internal heating plate are adopted to heat the catalyst on line, meanwhile, an ozone generator is started, VOCs adsorbed in a catalyst pore canal are decomposed and desorbed under the action of ozone, the inside of the lower shell is in a negative pressure state under the action of the catalyst regeneration fan, so that the desorption of the VOCs adsorbed in the porous material is further promoted, the VOCs catalyst can be regenerated on line, secondary pollution is prevented, and the service life of the catalyst is prolonged.
Drawings
FIG. 1 is a schematic view of a centralized indoor air purifying device according to the present invention;
FIG. 2 is a schematic diagram of the flow direction of the air in the fresh air supplying mode of the indoor air centralized purifying device;
FIG. 3 is a schematic view of the flow of the indoor circulation mode gas in the indoor air concentration and purification device according to the present invention;
FIG. 4 is a schematic diagram of the flow of the gas in the catalyst regeneration mode of the centralized indoor air purification device according to the present invention;
fig. 5 is a schematic diagram of the indoor air centralized purifying device of the present invention in the fresh air supplementing mode and the catalyst regeneration mode, and simultaneously turning on the air flow.
Wherein: 101-upper shell, 102-lower shell, 103-upper shell access opening, 104-lower shell access opening, 105-middle partition, 201-outdoor fresh air inlet, 202-catalyst regeneration air outlet, 203-indoor fresh air outlet, 204-indoor circulation air outlet, 301-outdoor fresh air inlet regulating valve, 302-regeneration air outlet regulating valve, 303-indoor fresh air outlet regulating valve, 304-indoor circulation air outlet regulating valve, 305-running state regulating valve, 401-fresh air blower, 402-indoor circulation blower, 403-catalyst regeneration blower, 501-outdoor air quality detection probe 502-indoor air quality detection probe, 601-fresh air purification coarse filter screen, 602-high efficiency filter screen, 603-indoor air purification filter screen, 701-gaseous pollutant decomposition catalyst, 702-external heating frame, 703-internal heating plate, ozone generator, 8-anion generator, 9-wire and 10-controller.
Detailed Description
Example 1
The indoor air centralized purification device comprises a shell, an air port, an electric regulating valve, a fan, an air quality detection probe, a dust purification module, a catalyst and regeneration module, a negative ion generator, a lead and a controller, wherein the electric regulating valve, the fan, the air quality detection probe and the negative ion generator 8 are respectively connected with the controller 10 through the lead 9;
the shell comprises an upper shell 101, a lower shell 102, an upper shell access hole 103, a lower shell access hole 104 and a middle partition 105, wherein the air inlet comprises an outdoor fresh air inlet 201, a catalyst regeneration air outlet 202, an indoor fresh air outlet 203 and an indoor circulating air outlet 204, the electric regulating valve comprises an outdoor fresh air inlet regulating valve 301, a regeneration air outlet regulating valve 302, an indoor fresh air outlet regulating valve 303, an indoor circulating air outlet regulating valve 304 and an operating state regulating valve 305, the fan comprises a fresh air fan 401, an indoor circulating fan 402 and a catalyst regeneration fan 403, the air quality detection probe comprises an outdoor air quality detection probe 501 and an indoor air quality detection probe 502, the dust purification module comprises a fresh air purification coarse filter 601, a high-efficiency filter 602 and an indoor air purification filter 603, and the catalyst and regeneration module comprises a gaseous pollutant decomposition catalyst 701, an external heating frame 702, an internal heating plate 703 and an ozone generator;
the upper shell access hole 103 is positioned at the upper part of the upper shell 101, the inside of the upper shell access hole 103 is opposite to the dust purification module, the lower shell access hole 104 is positioned at the lower part of the lower shell 102, the inside of the lower shell access hole 104 is opposite to the catalyst module, the outdoor fresh air inlet 201 and the indoor fresh air outlet 203 are positioned at two sides of the upper shell 101, the catalyst regenerated air outlet 202 and the indoor circulating air inlet 204 are positioned at two sides of the lower shell 102, the outdoor fresh air inlet regulating valve 301 is positioned at the inside of the outdoor fresh air inlet 201, the regenerated air outlet regulating valve 302 is positioned in the catalyst regenerated air outlet 202, the indoor fresh air outlet regulating valve 303 is positioned in the indoor fresh air outlet 203, the indoor circulating air inlet regulating valve 304 is positioned in the indoor circulating air inlet 204, the running state regulating valve 305 is positioned at one side of the middle partition 105 close to the fresh air inlet 201, the fresh air fan 401 and the indoor circulating fan 402 are positioned in the upper shell 101, the fresh air is positioned at two sides of the dust purification module, the fan 401 is close to one side of the indoor fresh air outlet 203, the outdoor air quality detection probe 501 is positioned at one side of the outdoor fresh air inlet 201, the indoor air quality detection probe 502 is positioned at one side of the indoor fresh air outlet 203, the module is positioned at the upper shell 101, the middle part 601 and the middle part and the indoor purifying coarse air and the indoor coarse air purifying air inlet 603 and the indoor high-purifying air filter are positioned at two sides of the catalyst filter screen 602 are positioned at one side of the inside of the filter screen 602, the inside of the filter screen is positioned at the inside of the filter screen, and the high-quality filter is positioned at one side of the inside of the filter screen is positioned at the filter screen, and is positioned at the inside of the high-quality filter screen is inside of the filter, and is inside of the filter is positioned at the filter and is inside.
The air quality detection probe is an integrated probe, and can detect PM2.5, PM10, formaldehyde, toluene, benzene and VOCs pollutants simultaneously.
The gaseous pollutant decomposition catalyst 701 is made of a molecular sieve supported Pt catalyst, the surface of the fresh air purifying coarse filter screen 601 is subjected to antibacterial treatment by spraying antibacterial agent nano silver, and the surface of the indoor air purifying filter screen 603 is subjected to hydrophobic and oleophobic modification.
The control method of the indoor air centralized purifying device comprises manual control and automatic control, wherein the manual control comprises a fresh air supplementing mode, an indoor circulating mode and a catalyst regeneration mode, and the automatic control is automatically calculated by the controller 10 and is switched in three modes according to the calculation result.
In the fresh air supplementing mode, the fresh air fan 401 is started, the indoor circulating fan 402 and the catalyst regeneration fan 403 are closed, the outdoor fresh air inlet regulating valve 301 and the indoor fresh air outlet regulating valve 303 are opened, the regenerated air outlet regulating valve 302, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the negative ion generator 8 is opened.
In the indoor circulation mode, as shown in fig. 3, the air flow direction is shown in fig. 3, the indoor circulation fan 402 is started, the fresh air fan 401 and the catalyst regeneration fan 403 are closed, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are opened, the outdoor fresh air inlet regulating valve 301 and the regenerated air outlet regulating valve 302 are closed, the negative ion generator 8 is opened, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are closed.
In the catalyst regeneration mode, as shown in fig. 4, the gas flow direction is shown in fig. 4, the catalyst regeneration fan 403 is started, the indoor circulation fan 402 and the fresh air fan 401 are closed, the regenerated air outlet regulating valve 302 is opened, the outdoor fresh air inlet regulating valve 301, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
The fresh air supplementing mode and the catalyst regenerating mode can be started simultaneously, when the fresh air supplementing mode and the catalyst regenerating mode are started simultaneously, the air flow direction is as shown in fig. 5, the fresh air fan 401 and the catalyst regenerating fan 403 are started, the indoor circulating fan 402 is closed, the outdoor fresh air inlet regulating valve 301, the regenerated air outlet regulating valve 302 and the indoor fresh air outlet regulating valve 303 are opened, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
Under automatic control, the switching conditions of each mode are as follows: when the concentration of the outdoor PM2.5 is less than the concentration of the indoor PM2.5, a fresh air supplementing mode is started; when the outdoor PM2.5 concentration is more than the indoor PM2.5 concentration, an indoor circulation mode is started; the indoor circulation mode is started for more than 300 hours, and the catalyst regeneration mode is started.
Example 2
The indoor air centralized purification device comprises a shell, an air port, an electric regulating valve, a fan, an air quality detection probe, a dust purification module, a catalyst and regeneration module, a negative ion generator, a lead and a controller, wherein the electric regulating valve, the fan, the air quality detection probe and the negative ion generator 8 are connected with the controller 10 through the lead 9;
the shell comprises an upper shell 101, a lower shell 102, an upper shell access hole 103, a lower shell access hole 104 and a middle partition 105, wherein the air inlet comprises an outdoor fresh air inlet 201, a catalyst regeneration air outlet 202, an indoor fresh air outlet 203 and an indoor circulating air outlet 204, the electric regulating valve comprises an outdoor fresh air inlet regulating valve 301, a regeneration air outlet regulating valve 302, an indoor fresh air outlet regulating valve 303, an indoor circulating air outlet regulating valve 304 and an operating state regulating valve 305, the fan comprises a fresh air fan 401, an indoor circulating fan 402 and a catalyst regeneration fan 403, the air quality detection probe comprises an outdoor air quality detection probe 501 and an indoor air quality detection probe 502, the dust purification module comprises a fresh air purification coarse filter 601, a high-efficiency filter 602 and an indoor air purification filter 603, and the catalyst and regeneration module comprises a gaseous pollutant decomposition catalyst 701, an external heating frame 702, an internal heating plate 703 and an ozone generator;
the upper shell access hole 103 is positioned at the upper part of the upper shell 101, the inside of the upper shell access hole 103 is opposite to the dust purification module, the lower shell access hole 104 is positioned at the lower part of the lower shell 102, the inside of the lower shell access hole 104 is opposite to the catalyst module, the outdoor fresh air inlet 201 and the indoor fresh air outlet 203 are positioned at two sides of the upper shell 101, the catalyst regenerated air outlet 202 and the indoor circulating air inlet 204 are positioned at two sides of the lower shell 102, the outdoor fresh air inlet regulating valve 301 is positioned at the inside of the outdoor fresh air inlet 201, the regenerated air outlet regulating valve 302 is positioned in the catalyst regenerated air outlet 202, the indoor fresh air outlet regulating valve 303 is positioned in the indoor fresh air outlet 203, the indoor circulating air inlet regulating valve 304 is positioned in the indoor circulating air inlet 204, the running state regulating valve 305 is positioned at one side of the middle partition 105 close to the fresh air inlet 201, the fresh air fan 401 and the indoor circulating fan 402 are positioned in the upper shell 101, the fresh air is positioned at two sides of the dust purification module, the fan 401 is close to one side of the indoor fresh air outlet 203, the outdoor air quality detection probe 501 is positioned at one side of the outdoor fresh air inlet 201, the indoor air quality detection probe 502 is positioned at one side of the indoor fresh air outlet 203, the module is positioned at the upper shell 101, the middle part 601 and the middle part and the indoor purifying coarse air and the indoor coarse air purifying air inlet 603 and the indoor high-purifying air filter are positioned at two sides of the catalyst filter screen 602 are positioned at one side of the inside of the filter screen 602, the inside of the filter screen is positioned at the inside of the filter screen, and the high-quality filter is positioned at one side of the inside of the filter screen is positioned at the filter screen, and is positioned at the inside of the high-quality filter screen is inside of the filter, and is inside of the filter is positioned at the filter and is inside.
The air quality detection probe is an integrated probe, and can detect PM2.5, PM10, formaldehyde, toluene, benzene and VOCs pollutants simultaneously.
The gaseous pollutant decomposition catalyst 701 is made of Mn metal oxide loaded by multi-active carbon, the surface of the fresh air purification coarse filter screen 601 is subjected to zinc oxide antibacterial treatment by spraying antibacterial agent, and the surface of the indoor air purification filter screen 603 is subjected to hydrophobic and oleophobic modification.
The control method of the indoor air centralized purifying device comprises manual control and automatic control, wherein the manual control comprises a fresh air supplementing mode, an indoor circulating mode and a catalyst regeneration mode, and the automatic control is automatically calculated by the controller 10 and is switched in three modes according to the calculation result.
In the fresh air supplementing mode, the fresh air fan 401 is started, the indoor circulating fan 402 and the catalyst regeneration fan 403 are closed, the outdoor fresh air inlet regulating valve 301 and the indoor fresh air outlet regulating valve 303 are opened, the regenerated air outlet regulating valve 302, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the negative ion generator 8 is opened.
In the indoor circulation mode, as shown in fig. 3, the air flow direction is shown in fig. 3, the indoor circulation fan 402 is started, the fresh air fan 401 and the catalyst regeneration fan 403 are closed, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are opened, the outdoor fresh air inlet regulating valve 301 and the regenerated air outlet regulating valve 302 are closed, the negative ion generator 8 is opened, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are closed.
In the catalyst regeneration mode, as shown in fig. 4, the gas flow direction is shown in fig. 4, the catalyst regeneration fan 403 is started, the indoor circulation fan 402 and the fresh air fan 401 are closed, the regenerated air outlet regulating valve 302 is opened, the outdoor fresh air inlet regulating valve 301, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
The fresh air supplementing mode and the catalyst regenerating mode can be started simultaneously, when the fresh air supplementing mode and the catalyst regenerating mode are started simultaneously, the air flow direction is as shown in fig. 5, the fresh air fan 401 and the catalyst regenerating fan 403 are started, the indoor circulating fan 402 is closed, the outdoor fresh air inlet regulating valve 301, the regenerated air outlet regulating valve 302 and the indoor fresh air outlet regulating valve 303 are opened, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
Under automatic control, the switching conditions of each mode are as follows: when the concentration of the outdoor PM2.5 is less than the concentration of the indoor PM2.5, a fresh air supplementing mode is started; when the outdoor PM2.5 concentration is more than the indoor PM2.5 concentration, an indoor circulation mode is started; the indoor circulation mode is started for more than 300 hours, and the catalyst regeneration mode is started.
Example 3
The indoor air centralized purification device comprises a shell, an air port, an electric regulating valve, a fan, an air quality detection probe, a dust purification module, a catalyst and regeneration module, a negative ion generator, a lead and a controller, wherein the electric regulating valve, the fan, the air quality detection probe and the negative ion generator 8 are connected with the controller 10 through the lead 9;
the shell comprises an upper shell 101, a lower shell 102, an upper shell access hole 103, a lower shell access hole 104 and a middle partition 105, wherein the air inlet comprises an outdoor fresh air inlet 201, a catalyst regeneration air outlet 202, an indoor fresh air outlet 203 and an indoor circulating air outlet 204, the electric regulating valve comprises an outdoor fresh air inlet regulating valve 301, a regeneration air outlet regulating valve 302, an indoor fresh air outlet regulating valve 303, an indoor circulating air outlet regulating valve 304 and an operating state regulating valve 305, the fan comprises a fresh air fan 401, an indoor circulating fan 402 and a catalyst regeneration fan 403, the air quality detection probe comprises an outdoor air quality detection probe 501 and an indoor air quality detection probe 502, the dust purification module comprises a fresh air purification coarse filter 601, a high-efficiency filter 602 and an indoor air purification filter 603, and the catalyst and regeneration module comprises a gaseous pollutant decomposition catalyst 701, an external heating frame 702, an internal heating plate 703 and an ozone generator;
the upper shell access hole 103 is positioned at the upper part of the upper shell 101, the inside of the upper shell access hole 103 is opposite to the dust purification module, the lower shell access hole 104 is positioned at the lower part of the lower shell 102, the inside of the lower shell access hole 104 is opposite to the catalyst module, the outdoor fresh air inlet 201 and the indoor fresh air outlet 203 are positioned at two sides of the upper shell 101, the catalyst regenerated air outlet 202 and the indoor circulating air inlet 204 are positioned at two sides of the lower shell 102, the outdoor fresh air inlet regulating valve 301 is positioned at the inside of the outdoor fresh air inlet 201, the regenerated air outlet regulating valve 302 is positioned in the catalyst regenerated air outlet 202, the indoor fresh air outlet regulating valve 303 is positioned in the indoor fresh air outlet 203, the indoor circulating air inlet regulating valve 304 is positioned in the indoor circulating air inlet 204, the running state regulating valve 305 is positioned at one side of the middle partition 105 close to the fresh air inlet 201, the fresh air fan 401 and the indoor circulating fan 402 are positioned in the upper shell 101, the fresh air is positioned at two sides of the dust purification module, the fan 401 is close to one side of the indoor fresh air outlet 203, the outdoor air quality detection probe 501 is positioned at one side of the outdoor fresh air inlet 201, the indoor air quality detection probe 502 is positioned at one side of the indoor fresh air outlet 203, the module is positioned at the upper shell 101, the middle part 601 and the middle part and the indoor purifying coarse air and the indoor coarse air purifying air inlet 603 and the indoor high-purifying air filter are positioned at two sides of the catalyst filter screen 602 are positioned at one side of the inside of the filter screen 602, the inside of the filter screen is positioned at the inside of the filter screen, and the high-quality filter is positioned at one side of the inside of the filter screen is positioned at the filter screen, and is positioned at the inside of the high-quality filter screen is inside of the filter, and is inside of the filter is positioned at the filter and is inside.
The air quality detection probe is an integrated probe, and can detect PM2.5, PM10, formaldehyde, toluene, benzene and VOCs pollutants simultaneously.
The gaseous pollutant decomposing catalyst 701 is prepared by a molecular sieve supported Pd and Rh catalyst, the surface of the fresh air purifying coarse filter 601 is subjected to antibacterial treatment by spraying an antibacterial agent isothiazolone derivative, and the surface of the indoor air purifying filter 603 is subjected to hydrophobic and oleophobic modification.
The control method of the indoor air centralized purifying device comprises manual control and automatic control, wherein the manual control comprises a fresh air supplementing mode, an indoor circulating mode and a catalyst regeneration mode, and the automatic control is automatically calculated by the controller 10 and is switched in three modes according to the calculation result.
In the fresh air supplementing mode, the fresh air fan 401 is started, the indoor circulating fan 402 and the catalyst regeneration fan 403 are closed, the outdoor fresh air inlet regulating valve 301 and the indoor fresh air outlet regulating valve 303 are opened, the regenerated air outlet regulating valve 302, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the negative ion generator 8 is opened.
In the indoor circulation mode, as shown in fig. 3, the air flow direction is shown in fig. 3, the indoor circulation fan 402 is started, the fresh air fan 401 and the catalyst regeneration fan 403 are closed, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are opened, the outdoor fresh air inlet regulating valve 301 and the regenerated air outlet regulating valve 302 are closed, the negative ion generator 8 is opened, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are closed.
In the catalyst regeneration mode, as shown in fig. 4, the gas flow direction is shown in fig. 4, the catalyst regeneration fan 403 is started, the indoor circulation fan 402 and the fresh air fan 401 are closed, the regenerated air outlet regulating valve 302 is opened, the outdoor fresh air inlet regulating valve 301, the indoor fresh air outlet regulating valve 303, the indoor circulation air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
The fresh air supplementing mode and the catalyst regenerating mode can be started simultaneously, when the fresh air supplementing mode and the catalyst regenerating mode are started simultaneously, the air flow direction is as shown in fig. 5, the fresh air fan 401 and the catalyst regenerating fan 403 are started, the indoor circulating fan 402 is closed, the outdoor fresh air inlet regulating valve 301, the regenerated air outlet regulating valve 302 and the indoor fresh air outlet regulating valve 303 are opened, the indoor circulating air outlet regulating valve 304 and the running state regulating valve 305 are closed, and the external heating frame 702, the internal heating plate 703 and the ozone generator 704 are opened.
Under automatic control, the switching conditions of each mode are as follows: when the concentration of the outdoor PM2.5 is less than the concentration of the indoor PM2.5, a fresh air supplementing mode is started; when the outdoor PM2.5 concentration is more than the indoor PM2.5 concentration, an indoor circulation mode is started; the indoor circulation mode is started for more than 300 hours, and the catalyst regeneration mode is started.
Claims (6)
1. A control method of an indoor air centralized purifying device is characterized in that,
the purification device comprises a shell, a wind gap, an electric regulating valve, a fan, an air quality detection probe, a dust purification module, a catalyst and regeneration module, a negative ion generator (8), a lead (9) and a controller (10), wherein the electric regulating valve, the fan, the air quality detection probe and the negative ion generator (8) are respectively connected with the controller (10) through the lead (9);
the shell comprises an upper shell (101), a lower shell (102), an upper shell access hole (103), a lower shell access hole (104) and an intermediate partition (105); the air port comprises an outdoor fresh air inlet (201), a catalyst regeneration air outlet (202), an indoor fresh air outlet (203) and an indoor circulating air port (204); the electric regulating valve comprises an outdoor fresh air inlet regulating valve (301), a regenerated air outlet regulating valve (302), an indoor fresh air outlet regulating valve (303), an indoor circulating air outlet regulating valve (304) and an operating state regulating valve (305); the fans comprise a fresh air fan (401), an indoor circulating fan (402) and a catalyst regeneration fan (403); the air quality detection probe comprises an outdoor air quality detection probe (501) and an indoor air quality detection probe (502); the dust purification module comprises a fresh air purification coarse filter screen (601), a high-efficiency filter screen (602) and an indoor air purification filter screen (603); the catalyst and regeneration module comprises a gaseous pollutant decomposition catalyst (701), an external heating frame (702), an internal heating plate (703) and an ozone generator (704);
the upper shell access hole (103) is positioned at the upper part of the upper shell (101), the interior of the upper shell access hole (103) is opposite to the dust purification module, the lower shell access hole (104) is positioned at the lower part of the lower shell (102), and the interior of the lower shell access hole (104) is opposite to the catalyst module; the outdoor fresh air inlet (201) and the indoor fresh air outlet (203) are positioned on two sides of the upper shell (101), the catalyst regenerated air outlet (202) and the indoor circulating air outlet (204) are positioned on two sides of the lower shell (102), the outdoor fresh air inlet regulating valve (301) is positioned in the outdoor fresh air inlet (201), the regenerated air outlet regulating valve (302) is positioned in the catalyst regenerated air outlet (202), the indoor fresh air outlet regulating valve (303) is positioned in the indoor fresh air outlet (203), the indoor circulating air outlet regulating valve (304) is positioned in the indoor circulating air outlet (204), and the running state regulating valve (305) is positioned on one side of the middle partition (105) close to the fresh air inlet (201); the fresh air fan (401) and the indoor circulating fan (402) are positioned in the upper shell (101) and are respectively arranged at two sides of the dust purification module, and the fresh air fan (401) is close to one side of the indoor fresh air outlet (203); the outdoor air quality detection probe (501) is positioned at the side of the outdoor fresh air inlet (201), and the indoor air quality detection probe (502) is positioned at the side of the indoor fresh air outlet (203); the dust purification module is positioned in the middle of the upper shell (101), the fresh air purification coarse screen (601) and the indoor air purification filter screen (603) are positioned on two sides of the high-efficiency filter screen (602), the catalyst and the regeneration module are positioned in the middle of the lower shell (102), the gaseous pollutant decomposition catalyst (701) is filled in the external heating frame (702), the internal heating plate (703) is distributed in the gaseous pollutant decomposition catalyst (701), and the ozone generator (704) is close to one side of the indoor circulating air port (204);
the control method comprises manual control and automatic control, wherein the manual control comprises a fresh air supplementing mode, an indoor circulating mode and a catalyst regeneration mode, the automatic control is automatically calculated by a controller (10), and the three modes are switched according to the calculation result;
in the fresh air supplementing mode, a fresh air fan (401) is started, an indoor circulating fan (402) and a catalyst regeneration fan (403) are closed, an outdoor fresh air inlet regulating valve (301) and an indoor fresh air outlet regulating valve (303) are opened, a regenerated air outlet regulating valve (302), an indoor circulating air outlet regulating valve (304) and an operating state regulating valve (305) are closed, and a negative ion generator (8) is opened;
in the indoor circulation mode, an indoor circulation fan (402) is started, a fresh air fan (401) and a catalyst regeneration fan (403) are closed, an indoor fresh air outlet regulating valve (303), an indoor circulation air outlet regulating valve (304) and an operating state regulating valve (305) are opened, an outdoor fresh air inlet regulating valve (301) and a regenerated air outlet regulating valve (302) are closed, a negative ion generator (8) is opened, and an external heating frame (702), an internal heating plate (703) and an ozone generator (704) are closed;
in the catalyst regeneration mode, a catalyst regeneration fan (403) is started, an indoor circulating fan (402) and a fresh air fan (401) are closed, a regenerated air outlet regulating valve (302) is opened, an outdoor fresh air inlet regulating valve (301), an indoor fresh air outlet regulating valve (303), an indoor circulating air outlet regulating valve (304) and an operating state regulating valve (305) are closed, and an external heating frame (702), an internal heating plate (703) and an ozone generator (704) are opened.
2. The control method of the indoor air centralized purifying device according to claim 1, wherein the air quality detection probe is an integrated probe, and can detect PM2.5, PM10, formaldehyde, toluene, benzene and VOCs pollutants at the same time.
3. The control method of the indoor air centralized purifying device according to claim 1, wherein the gaseous pollutant decomposition catalyst (701) is made of a porous material supported catalyst, the porous material comprises a molecular sieve and active carbon, the catalyst is a noble metal catalyst or a metal oxide catalyst, the noble metal catalyst is a Pt, pd and Rh catalyst, and the metal oxide catalyst is Cu and Mn metal oxide.
4. The control method of the indoor air centralized purification device according to claim 1, wherein the surface of the fresh air purification coarse filter screen (601) is subjected to antibacterial treatment by spraying an antibacterial agent, and the surface of the indoor air purification filter screen (603) is subjected to hydrophobic and oleophobic modification.
5. The method according to claim 1, wherein the fresh air supply mode and the catalyst regeneration mode are simultaneously started, the fresh air fan (401) and the catalyst regeneration fan (403) are simultaneously started, the indoor circulation fan (402) is closed, the outdoor fresh air inlet regulating valve (301), the regenerated air outlet regulating valve (302) and the indoor fresh air outlet regulating valve (303) are opened, the indoor circulation air outlet regulating valve (304) and the running state regulating valve (305) are closed, and the external heating frame (702), the internal heating plate (703) and the ozone generator (704) are opened.
6. The control method of the centralized indoor air purification device according to claim 1, wherein under the automatic control, the switching conditions of each mode are as follows: when the concentration of the outdoor PM2.5 is less than the concentration of the indoor PM2.5, a fresh air supplementing mode is started; when the outdoor PM2.5 concentration is more than the indoor PM2.5 concentration, an indoor circulation mode is started; the indoor circulation mode is started for more than 300 hours, and the catalyst regeneration mode is started.
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| TWI800779B (en) * | 2020-12-21 | 2023-05-01 | 研能科技股份有限公司 | Intelligently solution for indoor air pollution prevention |
| CN114110867A (en) * | 2021-11-16 | 2022-03-01 | 青岛海信日立空调系统有限公司 | Air conditioning device |
| CN114251768A (en) * | 2022-03-01 | 2022-03-29 | 维睿空气系统产品（深圳）有限公司 | Air purification system based on wireless network |
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