CN112283859B - Enhanced deodorization type photocatalytic air purification system for toilet - Google Patents
Enhanced deodorization type photocatalytic air purification system for toilet Download PDFInfo
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- CN112283859B CN112283859B CN201910622865.4A CN201910622865A CN112283859B CN 112283859 B CN112283859 B CN 112283859B CN 201910622865 A CN201910622865 A CN 201910622865A CN 112283859 B CN112283859 B CN 112283859B
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 79
- 238000004332 deodorization Methods 0.000 title claims abstract description 36
- 238000004887 air purification Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 claims abstract description 87
- 238000000746 purification Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 15
- 150000003568 thioethers Chemical class 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 12
- 239000003595 mist Substances 0.000 claims description 10
- 150000003573 thiols Chemical class 0.000 claims description 10
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 9
- 230000006866 deterioration Effects 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 6
- 238000007146 photocatalysis Methods 0.000 claims description 6
- 239000002028 Biomass Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 11
- 238000001914 filtration Methods 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 239000002808 molecular sieve Substances 0.000 abstract description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 8
- 235000019645 odor Nutrition 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
-
- 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
-
- 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
-
- 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
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
-
- 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
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Human Computer Interaction (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an enhanced deodorization type photocatalytic air purification system for a toilet, which comprises: the air inlet hole, the filter cavity, the photocatalytic cavity, the air guide cavity and the air outlet hole are formed in the shell, one end of the air inlet hole is connected with the filter cavity, the other end, far away from the air inlet hole, of the filter cavity is connected with the photocatalytic cavity, the other end, far away from the filter cavity, of the photocatalytic cavity is connected with the air guide cavity, and the other end, far away from the photocatalytic cavity, of the air guide cavity is connected with the air outlet hole; a first filter screen, a first monitoring module and a second filter screen are arranged in the filter cavity; a plurality of photocatalytic purification materials and light sources are arranged in the photocatalytic cavity; the air guide cavity is internally provided with a centrifugal fan and a second monitoring module. The polluted gas and the odor are removed in a photocatalytic oxidation mode through the first dust filtering net, the second filter screen and the photocatalytic module, and a physical adsorption mode of active carbon and molecular sieves for the polluted gas and the odor is replaced; the enhanced deodorization type photocatalytic fresh air system has the functions of strong deodorization, degradation of toxic and harmful polluted gases, sterilization and disinfection.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an enhanced deodorization type photocatalytic air purification system for a toilet.
Background
The prior fresh air system of the toilet mostly causes a certain positive pressure or negative pressure state in the toilet through the fresh air system, and the aim of deodorizing the toilet is fulfilled by a method of replacing air pollution of the toilet with indoor fresh air. Some fresh air systems adopt activated carbon, molecular sieves or other physical adsorption test materials to achieve the purposes of adsorbing polluted gas and deodorizing, but because the adsorption material is in an adsorption saturation state and mostly does not have a monitoring function, the replacement is often not timely; in addition, adsorption using an adsorbing material such as activated carbon requires frequent replacement, which also causes great resource waste and economic burden.
Disclosure of Invention
An object of the present invention is to provide an enhanced deodorization type photocatalytic air purification system for a toilet to solve the disadvantages of the prior art.
It is still another object of the present invention to provide an enhanced deodorization type photocatalytic air purification system for toilets, which can be used in both public and household toilets, and has the effects of powerful deodorization, degradation of toxic and harmful pollutant gases, sterilization and disinfection.
In order to achieve the above object, the present invention provides an enhanced deodorization type photocatalytic air purification system for a toilet, comprising:
the air inlet hole, the filter cavity, the photocatalysis cavity, the air guide cavity and the air outlet hole are formed in the shell, one end of the air inlet hole is connected with the filter cavity, the other end, far away from the air inlet hole, of the filter cavity is connected with the photocatalysis cavity, the other end, far away from the filter cavity, of the photocatalysis cavity is connected with the air guide cavity, and the other end, far away from the photocatalysis cavity, of the air guide cavity is connected with the air outlet hole; a first filter screen, a first monitoring module and a second filter screen are arranged in the filter cavity; a photocatalytic purification material and a light source are arranged in the photocatalytic cavity; and a centrifugal fan and a second monitoring module are arranged in the air guide cavity.
Preferably, the method further comprises the following steps: the air inlet hole is arranged at the lower part of the purifying shell and communicated with the left cavity, the filter cavity, the photocatalytic cavity and the air guide cavity are sequentially arranged in the left cavity from top to bottom, the air outlet hole is arranged at the top of the purifying shell and communicated with the left cavity, the right cavity is internally provided with a humidity adjusting mechanism, and the top of the purifying shell is also provided with an alarm system; the left cavity is provided with a flat screen plate for supporting a plurality of photocatalytic purification materials and the light source, and the plurality of photocatalytic purification materials are arranged around the light source.
Preferably, the humidity adjusting mechanism comprises a humidity sensor arranged at the top of the purifying cabinet, a water supply tank arranged in the right cavity, an atomizer arranged in the water supply tank, and a first pipe with a lower end positioned in the water supply tank and connected with the atomizer, wherein the upper end of the first pipe is connected with the lower end of a second pipe at the top of the purifying cabinet, and a humidity adjusting head at the upper end of the second pipe;
the humidity adjusting head comprises a first nozzle body and a second nozzle body arranged on one side of the first nozzle body, a first through hole is formed between the first nozzle body and the second nozzle body, an inner pipe connected with the upper end of a second pipe is arranged at the bottom of the first nozzle body, a ball body is arranged in the first nozzle body, and the ball body moves on one side of the inner pipe and the first through hole in the first nozzle body;
one side that the second mouth body was kept away from first mouth body is provided with the second through-hole, the lateral wall that in the second mouth body with the second through-hole corresponds is provided with first diaphragm, the lateral wall that in the second mouth body with the first through-hole corresponds is provided with two second diaphragms, first diaphragm is kept away from the one end of second through-hole extends to two between the second diaphragm.
Preferably, a control panel is arranged at the top of the purifying casing, a display screen and a key module are arranged on the control panel, a microprocessor is arranged at the bottom of the control panel, and the display screen, the key module, the mist generator, the first monitoring module, the light source, the centrifugal fan, the second monitoring module and the humidity sensor are all electrically connected with the microprocessor.
Preferably, the first filter screen is a HEPA filter screen or a bamboo fiber filter screen; the second filter screen is one of a HEPA filter screen, a bamboo fiber filter screen or a glass fiber filter screen, and a porous structure part is arranged in the middle of the second filter screen; the porous structure portion is made of porous foam cotton, the thickness of the porous structure portion is 3 mm-50 mm, and the second filter screen and the porous structure portion are subjected to dipping and spraying treatment of active biomass.
Preferably, wherein the first monitoring module comprises a first ammonia sensor, a first thiol sensor, a first thioether sensor and a PM2.5 monitoring module; the second monitoring module comprises a second ammonia sensor, a second mercaptan sensor, a second disulfide sensor and a light intensity detection module, and the light intensity detection module is arranged in the photocatalytic cavity and close to the light source.
Preferably, wherein, alarm system includes alarm BJQ, level sensor and wireless communication module, alarm BJQ sets up the top of purifying housing, level sensor sets up in the feed water tank, wireless communication module sets up control panel's bottom, level sensor's output with microprocessor's input electricity is connected, microprocessor's output with alarm BJQ wireless communication module's input electricity is connected, wireless communication module is connected with remote monitoring terminal, handheld monitoring terminal electricity.
Preferably, the microprocessor is electrically connected with the alarm BJQ through a control circuit;
the control circuit comprises an NPN bipolar transistor Q1, an NPN bipolar transistor Q2, an NPN bipolar transistor Q3, an NPN bipolar transistor Q4, an NPN bipolar transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R6, a resistor R7, a resistor R8, an inductor L and a capacitor C;
a collector of the NPN bipolar transistor Q1 is electrically connected to the inductor L and one end of the resistor R1, a base of the NPN bipolar transistor Q1 is electrically connected to one end of the resistor R3, one end of the resistor R3 is electrically connected to an emitter of the NPN bipolar transistor Q1 through the resistor R4 and is connected to a ground GND, the other end of the inductor L is electrically connected to a power input terminal VDD, and the other end of the resistor R3 is electrically connected to a first interface terminal J1 of the microprocessor;
a collector of the NPN bipolar transistor Q2 is electrically connected to the other end of the resistor R1, one end of the resistor R1 is electrically connected to one end of the capacitor C, the other end of the capacitor C is connected to a ground GND, a base of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R2, the other end of the resistor R2 is electrically connected to the second interface J2 of the microprocessor, an emitter of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R5 and the third interface J3 of the microprocessor, and the other end of the resistor R5 is connected to the ground GND;
a base electrode of the NPN bipolar transistor Q3 is electrically connected with one end of the resistor R6, the other end of the resistor R6 is electrically connected with the other end of the capacitor C, a collector electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the resistor R6 and one end of the alarm BJQ, and an emitter electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the alarm BJQ;
a collector of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R6 and a base of the NPN bipolar transistor Q3, a base of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R7, the other end of the resistor R7 is electrically connected to a fourth interface terminal J4 of the microprocessor and one end of the resistor R8, and an emitter of the NPN bipolar transistor Q4 is connected to a ground GND;
the collector of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q3, the base of the NPN bipolar transistor Q5 is electrically connected to the other end of the resistor R8, and the emitter of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q4 and connected to the ground GND.
Preferably, the centrifugal fan can intelligently adjust the rotating speed of the centrifugal fan according to the environment and the difference of the self-owned attributes of the centrifugal fan, so that the effects of enhancing deodorization and purifying the environment and saving energy can be well achieved, wherein the adjustment steps are as follows:
step S1: obtaining values monitored by the first monitoring module and the second monitoring module, and substituting the values into a formula (1) to obtain an environmental deterioration condition score;
wherein the content of the first and second substances,
in order to obtain a score for the environmental deterioration condition,
in order to solve for the maximum value in parentheses,
to solve for the minimum value in the brackets,
the concentration of ammonia gas monitored by the first monitoring module,
the concentration of ammonia gas monitored by the second monitoring module,
a concentration of a thiol monitored by the first monitoring module,
a concentration of a thiol monitored by the second monitoring module,
a concentration of a thioether monitored by the first monitoring module,
a concentration of a thioether monitored by the second monitoring module,
the concentration of PM2.5 monitored by the first monitoring module,
the illumination intensity monitored by the second monitoring module, wherein all the concentrations are in mg/m3The unit of the illumination intensity is LUX;
step S2: calculating the self-adjusting coefficient of the centrifugal fan by using a formula (2);
wherein the content of the first and second substances,
in order to solve for the resulting adjustment coefficients,
is the circumferential ratio pi,
the thickness of the first screen is the thickness of the first screen,
the thickness of the second screen is the thickness of the second screen,
is the temperature of the centrifugal fan and is,
is the air humidity of the public washroom,
the cross section area of the air outlet is,
the cross-sectional area of the air inlet hole,
is the value of the inverse trigonometric function cotangent,
is the tangent value of the inverse trigonometric function,
is a natural constant, and
、
the unit of (a) is mm,
the units of (a) are in degrees centigrade,
the percentage of the unit of (a) is,
and
has the unit of m2；
Step S3, dividing the environmental deterioration condition into F1 and the self-adjusting coefficient of the centrifugal fan
Substituting the formula (3) to obtain the final rotating speed;
wherein the content of the first and second substances,
in order to obtain the final rotational speed,
is a sign function, but the value in the brackets is greater than zero and has a value of 1, equal to 0 and has a value of 0, less than 0 and has a value of-1,
for the maximum rotational speed of the centrifugal fan, according to the solution
The rotating speed of the centrifugal fan can be intelligently adjusted.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. a first filter screen, a first monitoring module and a second filter screen are arranged in a filter cavity of the enhanced deodorization type photocatalytic air purification system for the toilet, a photocatalytic purification material and a light source are arranged in the photocatalytic cavity, and a centrifugal fan and a second monitoring module are arranged in an air guide cavity; the method comprises the following steps of removing polluted gas and odor by means of filter screen catalytic oxidation through structures such as a first dust filtering screen, a second filter screen, a photocatalytic purification material and a light source, and replacing a physical adsorption mode of active carbon and a molecular sieve on the polluted gas and the odor; the enhanced deodorization type photocatalytic air purification system for the toilet has the functions of strong deodorization, degradation of toxic and harmful polluted gases, sterilization and disinfection.
Other advantages, objects, and features of the present invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the present invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a front view showing the structure of an enhanced deodorization type photocatalytic air purification system for toilets according to the present invention.
Fig. 2 is a schematic structural view of a humidity adjusting head in the enhanced deodorization type photocatalytic air purification system for a toilet according to the present invention.
Fig. 3 is a schematic structural view of a second filter screen in the enhanced deodorization type photocatalytic air purification system for a toilet according to the present invention.
Fig. 4 is a control schematic block diagram of the enhanced deodorization type photocatalytic air purification system for a toilet according to the present invention.
Fig. 5 is a schematic connection diagram of a control circuit in the enhanced deodorization type photocatalytic air purification system for a toilet according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 5, the present invention provides an enhanced deodorization type photocatalytic air purification system for a toilet, comprising:
the air inlet device comprises an air inlet hole 1, a filter cavity 2, a photocatalytic cavity 3, an air guide cavity 4 and an air outlet hole 5, wherein one end of the air inlet hole 1 is connected with the filter cavity 2, the other end, far away from the air inlet hole 1, of the filter cavity 2 is connected with the photocatalytic cavity 3, the other end, far away from the filter cavity 2, of the photocatalytic cavity 3 is connected with the air guide cavity 4, and the other end, far away from the photocatalytic cavity 3, of the air guide cavity 4 is connected with the air outlet hole 5; a first filter screen 6, a first monitoring module 7 and a second filter screen 8 are arranged in the filter cavity 2; a photocatalytic purification material 10 and a light source 11 are arranged in the photocatalytic cavity 3; and a centrifugal fan 12 and a second monitoring module 13 are arranged in the air guide cavity 4.
The working principle of the technical scheme is as follows: the manager starts the centrifugal fan 12, the first monitoring module 7, the second monitoring module 13 and the light source 11, the centrifugal fan 12 rotates, the pressure below the centrifugal fan 12 is less than the pressure above, the polluted air in the public washroom enters the filtering cavity from the air inlet hole, passes through the primary filtering of the first filter screen 6 in the filtering cavity and the medium-high efficiency filtering of the second filter screen 7, the filtered air enters the photocatalytic cavity 3, the photocatalytic oxidation of the light source 11 and the photocatalytic purification material 10 cracks, breaks, oxidizes and decomposes toxic and harmful chemical molecular chains in the polluted air, decomposes macromolecular chains into nontoxic and harmless micromolecules, completely decomposes and oxidizes harmful substances in the air into carbon dioxide, water and other inorganic micromolecule substances, and thereby the deodorization and purification of the polluted air in the public washroom is completed; the first monitoring module 7 monitors relevant values in the polluted air, and the second monitoring module 13 monitors relevant values in the filtered and purified fresh air.
The beneficial effects of the above technical scheme are that: the method comprises the steps that a first dust filtering net 6, a second filtering net 8, a photocatalytic purification material 10, a light source 11 and other structures are arranged to remove polluted gas and odor in a mode of filter screen catalytic oxidation, the physical adsorption mode of active carbon and molecular sieves on the polluted gas and odor is replaced, a first monitoring module 7 monitors relevant numerical values in the polluted air, and a second monitoring module 13 monitors relevant numerical values in fresh air which is filtered and purified; the enhanced deodorization type photocatalytic air purification system for the toilet has the functions of strong deodorization, degradation of toxic and harmful polluted gases, sterilization and disinfection.
In one embodiment, the purifying cabinet 14 is provided with a left cavity 141 and a right cavity 142 inside the purifying cabinet 14, the air inlet hole 1 is arranged at the lower part of the purifying cabinet 14 and is communicated with the left cavity 141, the filter chamber 2, the photocatalytic chamber 3 and the air guide chamber 4 are sequentially arranged inside the left cavity 141 from top to bottom, the air outlet hole 5 is arranged at the top of the purifying cabinet 14 and is communicated with the left cavity 141, the right cavity 142 is provided with a humidity adjusting mechanism inside, and the top of the purifying cabinet 14 is further provided with an alarm system; the left cavity 141 is provided with a flat screen 143 for supporting a plurality of photocatalytic purification materials 10 and the light source 11, and the plurality of photocatalytic purification materials 10 are arranged around the light source 11.
A first dustproof net 28 is arranged in the air inlet hole 1, and a second dustproof net 29 is arranged in the air outlet hole 5.
The working principle of the technical scheme is as follows: a left cavity 141 and a right cavity 142 are arranged in the purifying shell 14, the filter cavity 2, the photocatalytic cavity 3 and the air guide cavity 4 are sequentially arranged in the left cavity 141 from top to bottom, a humidity adjusting mechanism is arranged in the right cavity 142, and an alarm system is also arranged at the top of the purifying shell 14; the left cavity 141 is provided with a flat screen 143 for supporting a plurality of photocatalytic purification materials 10 and a light source 11, the plurality of photocatalytic purification materials 10 are arranged around the light source 11, wherein the light source 11 is one or more of a single-wavelength or multi-wavelength ultraviolet lamp, a single-wavelength or multi-wavelength ultraviolet lamp bead, an LED lamp and a fluorescent lamp; the photocatalytic material 10 is one or more of a glass tube, glass beads, glass fibers, a honeycomb metal net and a foam metal net soaked with a photocatalytic coating, wherein the photocatalytic coating can be modified TiO in the prior art2The catalyst can be applied to the various light sources 10, and the application range is wide.
The beneficial effects of the above technical scheme are that: through the design of the purifying shell 14, managers can conveniently install the enhanced deodorization type photocatalytic air purifying system for the toilet in the public toilet; and the photocatalytic oxidation effect of the matched use of the plurality of photocatalytic purification materials 10 and the light source 11 is good.
In one embodiment, the humidity adjusting mechanism includes a humidity sensor 30 disposed at the top of the purification cabinet 14, a water supply tank 15 disposed in the left cavity 142, a mist generator 16 disposed in the water supply tank 15, and a first through pipe 17 having a lower end located in the water supply tank 15 and connected to the mist generator 16, an upper end of the first through pipe 17 being connected to a lower end of a second through pipe 18 at the top of the purification cabinet 14, and a humidity adjusting head 19 at an upper end of the second through pipe 18;
the humidity adjusting head 19 comprises a first nozzle body 191 and a second nozzle body 192 arranged on one side of the first nozzle body 191, a first through hole 193 is arranged between the first nozzle body 191 and the second nozzle body 192, an inner pipe 194 connected with the upper end of the second pipe 18 is arranged at the bottom of the first nozzle body 191, a sphere 195 is arranged in the first nozzle body 191, and the sphere 195 moves on one side of the inner pipe 194 and the first through hole 193 in the first nozzle body 191;
one side of the second nozzle 192, which is away from the first nozzle 191, is provided with a second through hole 196, a first transverse plate 197 is arranged on a side wall of the second nozzle 192, which corresponds to the second through hole 196, two second transverse plates 198 are arranged on a side wall of the second nozzle 192, which corresponds to the first through hole 193, and one end of the first transverse plate 197, which is away from the second through hole 196, extends between the two second transverse plates 198.
The working principle of the technical scheme is as follows: the humidity sensor 30 monitors the humidity in the public washroom, and the manager can disperse the liquid water into mist by starting the atomizer 16, wherein the principle of the atomizer 16 is the same as that of the atomizer, and the mist is conveyed to the first nozzle body 191 through the first pipe 17 and the inner pipe 194, the ball 195 in the first nozzle body 191 is pushed upwards, then enters the second nozzle body 192 through the first through hole 193, and then the mist sprayed from the second through hole 196 is ultramicroized through the interaction blocking between the second transverse plate 198 and the first transverse plate 197.
The beneficial effects of the above technical scheme are that: through the design of the humidity adjusting head 19, the humidification treatment in the public washroom is convenient.
In one embodiment, a control panel 20 is disposed on the top of the purifying casing 14, a display screen 21 and a key module 22 are disposed on the control panel 20, a microprocessor 23 is disposed on the bottom of the control panel 20, and the display screen 21, the key module 22, the fog generator 16, the first monitoring module 7, the light source 11, the centrifugal fan 12, the second monitoring module 13, and the humidity sensor 30 are all electrically connected to the microprocessor 23. Microprocessor 23 preferably uses STM32F 105.
The working principle of the technical scheme is as follows: the output ends of the key module 22, the first monitoring module 7 and the second monitoring module 13 are electrically connected with the input end of the microprocessor 23, and the output end of the microprocessor 23 is electrically connected with the input ends of the display screen 21, the mist generator 16, the light source 11 and the centrifugal fan 12; the administrator sets the relevant monitoring numerical values of the first monitoring module 7 and the second monitoring module 13 through the key module, sets the rotating speed of the centrifugal fan 12 through the key module, and displays the rotating speed and the monitoring numerical values on the display screen.
The beneficial effects of the above technical scheme are that: through the structural design, convenience is brought to managers for use.
In one embodiment, the first screen 6 is a HEPA screen or a bamboo fiber screen; the second filter screen 8 is one of a HEPA filter screen, a bamboo fiber filter screen or a glass fiber filter screen, and a porous structure part 24 is arranged in the middle of the second filter screen 8; the porous structure portion 24 is made of porous foam cotton, the thickness of the porous structure portion is 3 mm-50 mm, and the second filter screen 8 and the porous structure portion 24 are subjected to dipping and spraying treatment of active biomass.
The working principle of the technical scheme is as follows: the first filter screen and the second filter screen remove particulate matters in polluted air, as shown in fig. 3, the second filter screen 8 is of a double-layer structure, a porous structure part 24 is wrapped in the middle of the double-layer second filter screen, the porous structure part 24 is made of porous foam cotton, the second filter screen 8 and the porous structure part 24 are subjected to dipping and spraying treatment of active biomass, the active biomass is the prior art and is rich in active groups which are reacted with common toilet odor substances such as ammonia gas, mercaptan, thioether and the like.
The beneficial effects of the above technical scheme are that: through the structure design, the filter screen is used for filtering polluted air and removing the ammonia gas, mercaptan, thioether and other common toilet odor substances through reaction.
In one embodiment, the first monitoring module 7 comprises a first ammonia sensor, a first thiol sensor, a first thioether sensor, and a PM2.5 monitoring module; the second monitoring module 13 includes a second ammonia sensor, a second thiol sensor, a second disulfide sensor and a light intensity detection module, and the light intensity detection module is disposed in the photocatalytic cavity 3 and close to the light source 11.
The working principle of the technical scheme is as follows: the first monitoring module 7 comprises a first ammonia gas sensor, a first mercaptan sensor, a first thioether sensor and a PM2.5 monitoring module, ammonia gas, mercaptan, thioether and other common toilet odors in the polluted air filtered by the first filter screen 6 are monitored, when the PM2.5 monitoring module monitors a PM2.5 numerical value, and a manager can remind the manager that the first filter screen 6 can be replaced through the PM2.5 numerical value displayed on the display screen when the PM2.5 numerical value reaches a certain value; the second monitoring module 13 comprises a second ammonia sensor, a second mercaptan sensor, a second disulfide sensor and a light intensity detection module, and is used for monitoring ammonia gas, mercaptan, thioether and other common toilet odors in the polluted air filtered by the second filter screen 8, and when the numerical values monitored by the second monitoring module 13 and the first monitoring module 7 are not obviously different on the display screen, the alarm system reminds a manager that the second filter screen 8 can be replaced; when the light intensity detection module monitors the light source 11 and the ultraviolet irradiance is reduced by 40% -60%, the alarm system reminds a manager that the light source 11 can be replaced.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned mechanism, the contrast is monitored to common bathroom stink such as ammonia, mercaptan, thioether in the air of filtration purification to the convenience, and the managers of being convenient for changes relevant part.
In one embodiment, the alarm system comprises an alarm BJQ, a water level sensor 25 and a wireless communication module 26, the alarm BJQ is disposed at the top of the purification housing 14, the water level sensor 25 is disposed in the water supply tank 15, the wireless communication module 26 is disposed at the bottom of the control panel 20, the output end of the water level sensor 25 is electrically connected to the input end of the microprocessor 23, the output end of the microprocessor 23 is electrically connected to the input ends of the alarm BJQ and the wireless communication module 26, and the wireless communication module 26 is electrically connected to the remote monitoring terminal 27 and the handheld monitoring terminal 9. The water level sensor 25 is preferably an ultrasonic water level sensor.
The working principle of the technical scheme is as follows: the water level sensor 25 monitors the water level in the water supply tank 15, when the water level value is smaller than a set value, the water level sensor 25 sends a signal to the microprocessor 23, and the microprocessor 23 starts an alarm BJQ to give an alarm to remind a manager to add water into the water supply tank 15; meanwhile, the microprocessor 23 controls the wireless communication module 26 to send a signal to the remote monitoring terminal 27, and the remote monitoring terminal 27 sends a signal to the handheld monitoring terminal 9 near the enhanced deodorization type photocatalytic air purification system for the toilet to remind a manager to add water into the water supply tank; the wireless communication module 26 can also directly send out signals to the handheld monitoring terminal 9 of the nearby manager. The alarm BJQ can also remind the manager to replace the first filter screen 6, the second filter screen 8 and the light source 11.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, make things convenient for managers to this bathroom with reinforcing deodorization type photocatalysis air purification system's use more.
In one embodiment, the microprocessor 23 is electrically connected to the alarm BJQ via a control circuit; the control circuit comprises an NPN bipolar transistor Q1, an NPN bipolar transistor Q2, an NPN bipolar transistor Q3, an NPN bipolar transistor Q4, an NPN bipolar transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R6, a resistor R7, a resistor R8, an inductor L and a capacitor C;
a collector of the NPN bipolar transistor Q1 is electrically connected to the inductor L and one end of the resistor R1, a base of the NPN bipolar transistor Q1 is electrically connected to one end of the resistor R3, one end of the resistor R3 is electrically connected to an emitter of the NPN bipolar transistor Q1 through the resistor R4 and is connected to a ground GND, the other end of the inductor L is electrically connected to a power input terminal VDD, and the other end of the resistor R3 is electrically connected to a first interface terminal J1 of the microprocessor 23;
a collector of the NPN bipolar transistor Q2 is electrically connected to the other end of the resistor R1, one end of the resistor R1 is electrically connected to one end of the capacitor C, the other end of the capacitor C is connected to a ground GND, a base of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R2, the other end of the resistor R2 is electrically connected to the second interface J2 of the microprocessor 23, an emitter of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R5 and the third interface J3 of the microprocessor 23, and the other end of the resistor R5 is connected to the ground GND;
a base electrode of the NPN bipolar transistor Q3 is electrically connected with one end of the resistor R6, the other end of the resistor R6 is electrically connected with the other end of the capacitor C, a collector electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the resistor R6 and one end of the alarm BJQ, and an emitter electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the alarm BJQ;
a collector of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R6 and a base of the NPN bipolar transistor Q3, a base of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R7, another end of the resistor R7 is electrically connected to the fourth interface terminal J4 of the microprocessor 23 and one end of the resistor R8, and an emitter of the NPN bipolar transistor Q4 is connected to a ground GND;
the collector of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q3, the base of the NPN bipolar transistor Q5 is electrically connected to the other end of the resistor R8, and the emitter of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q4 and connected to the ground GND.
Has the advantages that: through the design of above-mentioned control circuit, but the work of effective control alarm BJQ, adaptability is good, simultaneously, only need use ordinary inductance and components and parts just can realize the functional control of circuit in this control circuit, and the cost is lower, and the current performance is stable.
In one embodiment, the centrifugal fan 12 can intelligently adjust the rotating speed of the centrifugal fan according to the environment and the difference of the own attributes of the centrifugal fan, so that the energy-saving effect can be well achieved under the conditions of enhancing deodorization and purifying the environment, wherein the adjusting steps are as follows:
step S1: obtaining values monitored by the first monitoring module and the second monitoring module, and substituting the values into a formula (1) to obtain an environmental deterioration condition score;
wherein the content of the first and second substances,
in order to obtain a score for the environmental deterioration condition,
in order to solve for the maximum value in parentheses,
to solve for the minimum value in the brackets,
the concentration of ammonia gas monitored by the first monitoring module,
the concentration of ammonia gas monitored by the second monitoring module,
a concentration of a thiol monitored by the first monitoring module,
a concentration of a thiol monitored by the second monitoring module,
a concentration of a thioether monitored by the first monitoring module,
a concentration of a thioether monitored by the second monitoring module,
the concentration of PM2.5 monitored by the first monitoring module,
is the firstThe illumination intensity monitored by the two monitoring modules is that all the concentration units are mg/m3The unit of the illumination intensity is LUX;
step S2: calculating the self-adjusting coefficient of the centrifugal fan by using a formula (2);
wherein the content of the first and second substances,
in order to solve for the resulting adjustment coefficients,
is the circumferential ratio pi,
the thickness of the first screen is the thickness of the first screen,
the thickness of the second screen is the thickness of the second screen,
is the temperature of the centrifugal fan and is,
is the air humidity of the public washroom,
the cross section area of the air outlet is,
the cross-sectional area of the air inlet hole,
is the value of the inverse trigonometric function cotangent,
is the tangent value of the inverse trigonometric function,
is a natural constant, and
、
the unit of (a) is mm,
the units of (a) are in degrees centigrade,
the percentage of the unit of (a) is,
and
has the unit of m2；
Step S3, dividing the environmental deterioration condition into F1 and the self-adjusting coefficient of the centrifugal fan
Substituting the formula (3) to obtain the final rotating speed;
wherein the content of the first and second substances,
in order to obtain the final rotational speed,
is a sign function, but the value in the brackets is greater than zero and has a value of 1, equal to 0 and has a value of 0, less than 0 and has a value of-1,
for the maximum rotational speed of the centrifugal fan, according to the solution
The rotating speed of the centrifugal fan can be intelligently adjusted.
Has the advantages that: utilize above-mentioned technique can intelligent control centrifugal fan's rotational speed, make the rotational speed can be the best accords with current environment, can satisfy reinforcing deodorization, under the circumstances of purifying the environment, the energy-conserving effect of accomplishing that can also be fine, just in-process not only considers the data that first monitoring module and second monitoring module monitored, still considered simultaneously centrifugal fan's the highest rotational speed, the temperature of centrifugal fan during operation, the humidity of the environment of locating to and the cross-sectional area of air inlet and outlet pipeline.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. An enhanced deodorization type photocatalytic air purification system for a toilet, comprising:
the air inlet device comprises an air inlet hole (1), a filter cavity (2), a photocatalytic cavity (3), an air guide cavity (4) and an air outlet hole (5), wherein one end of the air inlet hole (1) is connected with the filter cavity (2), the other end, far away from the air inlet hole (1), of the filter cavity (2) is connected with the photocatalytic cavity (3), the other end, far away from the filter cavity (2), of the photocatalytic cavity (3) is connected with the air guide cavity (4), and the other end, far away from the photocatalytic cavity (3), of the air guide cavity (4) is connected with the air outlet hole (5);
a first filter screen (6), a first monitoring module (7) and a second filter screen (8) are arranged in the filter cavity (2);
a plurality of photocatalytic purification materials (10) and light sources (11) are arranged in the photocatalytic cavity (3);
be provided with centrifugal fan (12) and second monitoring module (13) in wind-guiding chamber (4), still include:
the air purifier comprises a purifying machine shell (14), wherein a left cavity (141) and a right cavity (142) are arranged in the purifying machine shell (14), an air inlet hole (1) is formed in the lower portion of the purifying machine shell (14) and communicated with the left cavity (141), a filter cavity (2), a photocatalytic cavity (3) and an air guide cavity (4) are sequentially arranged in the left cavity (141) from top to bottom, an air outlet hole (5) is formed in the top of the purifying machine shell (14) and communicated with the left cavity (141), a humidity adjusting mechanism is arranged in the right cavity (142), and an alarm system is further arranged at the top of the purifying machine shell (14);
the left cavity (141) is provided with a flat screen (143) for supporting a plurality of photocatalytic purification materials (10) and the light source (11), and the plurality of photocatalytic purification materials (10) are arranged around the light source (11);
the humidity adjusting mechanism comprises a humidity sensor (30) arranged at the top of the purifying shell (14), a water supply tank (15) arranged in the right cavity (142), a mist generator (16) arranged in the water supply tank (15) and a first pipe (17) with the lower end positioned in the water supply tank (15) and connected with the mist generator (16), the upper end of the first pipe (17) is connected with the lower end of a second pipe (18) at the top of the purifying shell (14), and a humidity adjusting head (19) is arranged at the upper end of the second pipe (18);
the humidity adjusting head (19) comprises a first nozzle body (191) and a second nozzle body (192) arranged on one side of the first nozzle body (191), a first through hole (193) is formed between the first nozzle body (191) and the second nozzle body (192), an inner pipe (194) connected with the upper end of the second pipe (18) is arranged at the bottom of the first nozzle body (191), a ball body (195) is arranged in the first nozzle body (191), and the ball body (195) moves on one side of the inner pipe (194) and the first through hole (193) in the first nozzle body (191);
one side of the second nozzle body (192) far away from the first nozzle body (191) is provided with a second through hole (196), a first transverse plate (197) is arranged on the side wall, corresponding to the second through hole (196), in the second nozzle body (192), two second transverse plates (198) are arranged on the side wall, corresponding to the first through hole (193), in the second nozzle body, one end, far away from the second through hole (196), of the first transverse plate (197) extends to a position between the two second transverse plates (198).
2. The air purification system with enhanced deodorization for the toilet according to claim 1, wherein a control panel (20) is disposed on a top of the purification cabinet (14), a display screen (21) and a key module (22) are disposed on the control panel (20), a microprocessor (23) is disposed on a bottom of the control panel (20), and the display screen (21), the key module (22), the mist generator (16), the first monitoring module (7), the light source (11), the centrifugal fan (12), the second monitoring module (13), and the humidity sensor (30) are all electrically connected to the microprocessor (23).
3. An enhanced deodorization type photocatalytic air purification system for toilets according to claim 1, wherein said first filter (6) is HEPA filter or bamboo fiber filter;
the second filter screen (8) is one of a HEPA filter screen, a bamboo fiber filter screen or a glass fiber filter screen, and a porous structure part (24) is arranged in the middle of the second filter screen (8);
the porous structure part (24) is made of porous foam cotton, the thickness of the porous structure part is 3 mm-50 mm, and the second filter screen (8) and the porous structure part (24) are subjected to dipping and spraying treatment of active biomass.
4. An enhanced deodorization type photocatalytic air purification system for toilets according to claim 1, wherein said first monitoring module (7) comprises a first ammonia sensor, a first thiol sensor, a first thioether sensor and a PM2.5 monitoring module; the second monitoring module (13) comprises a second ammonia sensor, a second mercaptan sensor, a second disulfide sensor and a light intensity detection module, and the light intensity detection module is arranged in the photocatalysis cavity (3) and close to the light source (11).
5. The photocatalytic air purification system for toilet with enhanced deodorization according to claim 2, it is characterized in that the alarm system comprises an alarm (BJQ), a water level sensor (25) and a wireless communication module (26), the alarm (BJQ) is disposed at the top of the purification cabinet (14), the water level sensor (25) is disposed in the water supply tank (15), the wireless communication module (26) is arranged at the bottom of the control panel (20), the output end of the water level sensor (25) is electrically connected with the input end of the microprocessor (23), the output end of the microprocessor (23) is electrically connected with the alarm (BJQ) and the input end of the wireless communication module (26), the wireless communication module (26) is electrically connected with the remote monitoring terminal (27) and the handheld monitoring terminal (9).
6. A photocatalytic air purification system of enhanced deodorization type for toilets according to claim 5, wherein said microprocessor (23) is electrically connected to said alarm (BJQ) through a control circuit;
the control circuit comprises an NPN bipolar transistor Q1, an NPN bipolar transistor Q2, an NPN bipolar transistor Q3, an NPN bipolar transistor Q4, an NPN bipolar transistor Q5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R6, a resistor R7, a resistor R8, an inductor L and a capacitor C;
a collector of the NPN bipolar transistor Q1 is electrically connected to the inductor L and one end of the resistor R1, a base of the NPN bipolar transistor Q1 is electrically connected to one end of the resistor R3, one end of the resistor R3 is electrically connected to an emitter of the NPN bipolar transistor Q1 through the resistor R4 and is connected to a ground GND, the other end of the inductor L is electrically connected to a power input terminal VDD, and the other end of the resistor R3 is electrically connected to a first interface terminal J1 of the microprocessor (23);
a collector of the NPN bipolar transistor Q2 is electrically connected to the other end of the resistor R1, one end of the resistor R1 is electrically connected to one end of the capacitor C, the other end of the capacitor C is connected to a ground reference GND, a base of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R2, the other end of the resistor R2 is electrically connected to the second interface J2 of the microprocessor (23), an emitter of the NPN bipolar transistor Q2 is electrically connected to one end of the resistor R5 and the third interface J3 of the microprocessor (23), and the other end of the resistor R5 is connected to the ground reference GND;
a base electrode of the NPN bipolar transistor Q3 is electrically connected with one end of the resistor R6, the other end of the resistor R6 is electrically connected with the other end of the capacitor C, a collector electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the resistor R6 and one end of the alarm (BJQ), and an emitter electrode of the NPN bipolar transistor Q3 is electrically connected with the other end of the alarm (BJQ);
a collector of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R6 and a base of the NPN bipolar transistor Q3, a base of the NPN bipolar transistor Q4 is electrically connected to one end of the resistor R7, the other end of the resistor R7 is electrically connected to a fourth interface terminal J4 of the microprocessor (23) and one end of the resistor R8, and an emitter of the NPN bipolar transistor Q4 is connected to a ground GND;
the collector of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q3, the base of the NPN bipolar transistor Q5 is electrically connected to the other end of the resistor R8, and the emitter of the NPN bipolar transistor Q5 is electrically connected to the emitter of the NPN bipolar transistor Q4 and connected to the ground GND.
7. The photocatalytic air purification system with enhanced deodorization for toilets according to claim 1, wherein the centrifugal fan (12) can intelligently adjust the rotation speed of the centrifugal fan according to different environments and the own attributes of the centrifugal fan, so that the rotation speed can best meet the current environment, and the energy-saving effect can be well achieved under the condition of satisfying enhanced deodorization and environment purification, wherein the adjustment steps are as follows:
step S1: obtaining values monitored by the first monitoring module and the second monitoring module, and substituting the values into a formula (1) to obtain an environmental deterioration condition score;
wherein the content of the first and second substances,
in order to obtain a score for the environmental deterioration condition,
in order to solve for the maximum value in parentheses,
to solve for the minimum value in the brackets,
the concentration of ammonia gas monitored by the first monitoring module,
the concentration of ammonia gas monitored by the second monitoring module,
a concentration of a thiol monitored by the first monitoring module,
a concentration of a thiol monitored by the second monitoring module,
a concentration of a thioether monitored by the first monitoring module,
a concentration of a thioether monitored by the second monitoring module,
the concentration of PM2.5 monitored by the first monitoring module,
the illumination intensity monitored by the second monitoring module, wherein all the concentrations are in mg/m3The unit of the illumination intensity is LUX;
step S2: calculating the self-adjusting coefficient of the centrifugal fan by using a formula (2);
wherein the content of the first and second substances,
in order to solve for the resulting adjustment coefficients,
is the circumferential ratio pi,
the thickness of the first screen is the thickness of the first screen,
the thickness of the second screen is the thickness of the second screen,
is the temperature of the centrifugal fan and is,
is the air humidity of the public washroom,
the cross section area of the air outlet is,
the cross-sectional area of the air inlet hole,
is the value of the inverse trigonometric function cotangent,
is the tangent value of the inverse trigonometric function,
is a natural constant, and
、
the unit of (a) is mm,
the units of (a) are in degrees centigrade,
the percentage of the unit of (a) is,
and
has the unit of m2；
Step S3, dividing the environmental deterioration condition into F1 and the self-adjusting coefficient of the centrifugal fan
Substituting the formula (3) to obtain the final rotating speed;
wherein the content of the first and second substances,
in order to obtain the final rotational speed,
is a sign function, but the value in the brackets is greater than zero and has a value of 1, equal to 0 and has a value of 0, less than 0 and has a value of-1,
for the maximum rotational speed of the centrifugal fan, according to the solution
The rotating speed of the centrifugal fan can be intelligently adjusted.
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| KR20190021656A (en) * | 2017-08-23 | 2019-03-06 | 문학선 | Air cleaner having a diffuser |
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| CN106823732A (en) * | 2017-02-21 | 2017-06-13 | 安徽海纳森环境科技有限公司 | A kind of high efficiency smart photodissociation cleaning equipment |
| CN207113016U (en) * | 2017-07-07 | 2018-03-16 | 中山市中开环保设备制造有限公司 | Indoor air cleaner |
| KR20190021656A (en) * | 2017-08-23 | 2019-03-06 | 문학선 | Air cleaner having a diffuser |
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