CN210584483U - Photocatalysis air purification filter core - Google Patents
Photocatalysis air purification filter core Download PDFInfo
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- CN210584483U CN210584483U CN201921078244.6U CN201921078244U CN210584483U CN 210584483 U CN210584483 U CN 210584483U CN 201921078244 U CN201921078244 U CN 201921078244U CN 210584483 U CN210584483 U CN 210584483U
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Abstract
The utility model provides a photocatalysis air purification filter core is arranged by a plurality of filter core elementary cell arrays and is formed, the filter core elementary cell includes: the air inlet is of a tubular structure, one end of the air inlet is a free end, and the other end of the air inlet is communicated with a special-shaped retained air flow channel; the special-shaped air retention flow channel is formed by stacking and connecting a plurality of air retention cavities end to end in series, and inner cavities among the special-shaped air retention cavities are communicated; the air outlet is of a tubular structure, one end of the air outlet is connected with the air outlet end of the special-shaped detained air flow channel, and the other end of the air outlet is a free end; and the photocatalytic coating is attached to the inner cavity surface and the outer wall of the air inlet, the special-shaped detained air flow channel and the air outlet. The contact area of the gas and the photocatalytic material can be effectively increased, and the effect of degrading harmful gas by photocatalysis is improved.
Description
Technical Field
The utility model relates to an air purification technical field, concretely relates to photocatalysis air purification filter core.
Background
The filter element is a key component in air conditioners, air purifiers, fresh air blowers, water-cooled fans or air purifiers of civil equipment and industrial VOC treatment equipment. Most of the existing air purification filter elements are activated carbon, molecular sieves or other physical adsorption test filter elements, and after the existing air purification filter elements are used for a period of time, the existing air purification filter elements can reach an adsorption saturation state, so that the filter elements need to be replaced, material waste is caused, and certain economic burden is brought to consumers; if the physical adsorption filter element cannot be replaced in time, desorption of adsorbed VOC can be caused, and further pollution is caused; after the filter element is used for a period of time, the physical adsorption filter element can generate the conditions of mildew and bacterial growth, and further harm the health of people. In addition, in the existing filling type photocatalytic filter element, the photocatalyst is a substance which does not change under the irradiation of light and can promote chemical reaction. The photocatalyst can activate oxygen and water adsorbed on the surface of the material under the irradiation of light to generate free hydroxyl and active oxygen with extremely strong oxidizing capability, and an oxidation reaction is carried out to thoroughly decompose organic matters, bacteria, viruses and the like into carbon dioxide and water, but if the filling amount is small, the photocatalytic effect is poor; the large filling amount causes the situation of too large wind resistance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photocatalysis air purification filter core solves above-mentioned problem.
In order to achieve the above object, the utility model provides a following technical scheme: a photocatalysis air purification filter core which characterized in that: form by a plurality of filter core basic unit arrays, filter core basic unit includes:
the air inlet is of a tubular structure, one end of the air inlet is a free end, and the other end of the air inlet is communicated with a special-shaped retained air flow channel;
the special-shaped air retention flow channel is formed by stacking and connecting a plurality of air retention cavities end to end in series, and inner cavities among the special-shaped air retention cavities are communicated;
the air outlet is of a tubular structure, one end of the air outlet is connected with the air outlet end of the special-shaped detained air flow channel, and the other end of the air outlet is a free end;
and the photocatalytic coating is attached to the inner cavity surface and the outer wall of the air inlet, the special-shaped detained air flow channel and the air outlet.
As an improvement of the utility model, the terminal surface of air intlet, air outlet is circular or polygon, and a plurality of filter core elementary units are arranged with circular or regular polygon array central authorities are provided with the breach that is used for placing the light source.
As an improvement of the utility model, the air flow channel is detained to dysmorphism comprises the air retention cavity of one or more shape, the shape of air retention cavity has calabash bodily form, ellipsoid bodily form, cube bodily form or pyramidal shape.
As an improvement of the utility model, the outer wall of the air inlet of the filter element basic unit is in a cylindrical or polygonal structure, the diameter of the inner cavity pipeline of the filter element basic unit is gradually reduced along the air flowing direction, and the surface of the inner cavity pipeline is an arc surface.
As an improvement of the utility model, the inner chamber of the air outlet of the filter element basic unit is a cylindrical structure, the diameter of the outer wall of the filter element basic unit is gradually enlarged along the air flowing direction, and the surface of the outer wall is an arc surface.
As an improvement of the utility model, the filter element is further provided with a detection control device, and the detection control device comprises a controller, a gas flow sensor arranged at the end part of the air inlet, and a gas quality sensor arranged at the end part of the air outlet;
the controller is electrically connected with the control element of the light source and the control element of the exhaust fan;
the gas flow sensor is used for detecting the gas flow velocity of the inner cavity and the outer side of the basic unit of the filter element;
the gas quality sensor respectively detects the gas purification quality of the inner cavity and the outer side of the basic unit of the filter element.
As an improvement of the present invention, the controller includes a control circuit, the control circuit includes:
a pin 1 of the gas flow sensor is connected with a voltage input end, a pin 3 of the gas flow sensor is grounded, a capacitor C1 is connected between the pins 1 and 3, and a pin 2 of the gas flow sensor is sequentially connected with a resistor R1 and an inductor M1 in series;
the pin 1 of the gas mass sensor is connected with a voltage input end, the pin 3 of the gas mass sensor is grounded, a capacitor C2 is connected between the pins 1 and 3, and the pin 2 of the gas mass sensor is sequentially connected with a resistor R2 and an inductor M2 in series;
the upper end of the capacitor C3 is connected with the right end of the inductor M1, and the lower end of the capacitor C3 is connected with the right end of the capacitor M2;
a positive phase input end of the gain device T1 is connected in series with the R4, the other end of the R4 is respectively connected with the R6 and the R7, a negative phase input end of the gain device T1 is respectively connected with the lower end of the capacitor C3, the resistor R3 and the capacitor C4, and an output end of the gain device T1 is connected with one end of the R5;
a capacitor C4, the upper end of which is connected with the negative phase input end of the booster T1, and the lower end of which is grounded;
the other end of the resistor R5 is sequentially connected with a resistor R6 and a resistor R7 in series, and the other end of the resistor R7 is grounded;
a voltage stabilizing diode P1, the anode of which is connected with the right end of R5, the cathode of which is connected with the cathode of the voltage stabilizing diode P2, and the anode of the voltage stabilizing diode P2 is grounded;
a pin 1 of the frequency transmitter W1 is respectively connected with the anodes of a resistor R8 and a diode D2, the cathode of the diode D2 is grounded, and the other end of the resistor R8 is connected with a power supply; pin 2Y is connected to the anode of zener diode P1; pins 3 and 4 are grounded; pins 5 and 9 are connected with the input end of the power supply; a pin 8 of the capacitor is respectively connected with the cathode of the diode D3 and one end of the capacitor C5, the anode of the diode D3 is grounded, and the other end of the capacitor C5 is connected with a pin 7 and a pin 6; the pin 6 is also connected with a resistor R9 and a capacitor C6 which are connected in parallel, and the pin 6, the resistor R9 and the capacitor C6 are grounded;
the negative phase input ends of the gain device T2 and the gain device T3 are connected with a voltage signal output by a pin 7 of the frequency transmitter W1, the voltage signal is compared with the voltage of a comparison circuit consisting of resistors R10, R11 and R12 connected with the positive phase input ends of the gain device T2 and the gain device T3, the output end of the gain device T2 is connected with an ultraviolet control element L1, and the output end of the gain device T3 is connected with a control element L2 of an exhaust fan.
As an improvement of the utility model, the light source passes through the fixed setting of connecting piece and is in just not contact with the filter core directly over the breach.
The utility model has the advantages that:
(1) the utility model provides a photocatalysis air purification filter element, which adopts a layer of catalyst coated on the inner wall and the outer side of the filter element and adopts a special-shaped air flow channel, air is retained to prolong the contact time between the catalyst and the air, and harmful gas can flow through the inside of the calabash shape and the outer side of the calabash shape, thereby effectively increasing the contact area between the gas and the photocatalysis material and improving the effect of degrading the harmful gas by photocatalysis;
(2) when the gas flows through the gourd-shaped flow channel, the flow path is suddenly increased or decreased, so that the corresponding air flow velocity is periodically decreased or increased, and the turbulence of the polluted gas in the gourd-shaped structure is effectively improved; when the gas flows through the inside of the gourd-shaped flow channel, the air is in a local internal circulation state in a single gourd-shaped structure, so that the polluted gas is repeatedly contacted with the photocatalytic material, and the photocatalytic effect is further improved;
(3) the device has small wind resistance and can effectively improve the photocatalysis efficiency;
(4) the filter element does not need to be replaced, and the filter element can play a role in effectively sterilizing and disinfecting besides the function of degrading harmful gas, so that indoor microbial pollution is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the basic unit structure of the filter element of the present invention;
FIG. 4 is a schematic view of the air flow of an embodiment of the present invention;
fig. 5 is a schematic view of the air flow of another embodiment of the present invention;
fig. 6 is a control circuit diagram of the controller of the present invention.
The components in the figure are:
the device comprises an air inlet 1, an air retention channel 2, an air retention cavity 3, an air outlet 4, a gap 5, a gas flow sensor 6 and a gas quality sensor 7.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a photocatalytic air purification filter element is formed by arranging a plurality of filter element basic units in an array, wherein each filter element basic unit comprises:
the air inlet is of a tubular structure, one end of the air inlet is a free end, and the other end of the air inlet is communicated with a special-shaped retained air flow channel;
the special-shaped air retention flow channel is formed by stacking and connecting a plurality of air retention cavities end to end in series, and inner cavities among the special-shaped air retention cavities are communicated;
the air outlet is of a tubular structure, one end of the air outlet is connected with the air outlet end of the special-shaped detained air flow channel, and the other end of the air outlet is a free end;
and the photocatalytic coating is attached to the inner cavity surface and the outer wall of the air inlet, the special-shaped detained air flow channel and the air outlet. The inner wall and the outer wall of the special-shaped stagnant air flow channel are both soaked by a photocatalytic material and are placed in the air for curing at normal temperature or are roasted at the high temperature of 800 ℃ for 3-30 min; the material of the special-shaped air retention flow channel is quartz glass, sodium glass or potassium glass, and the silicon dioxide content of the special-shaped air retention flow channel is 60-99.9%.
The working principle is as follows: there are two kinds of inlet channels when harmful gas passes through the filter core: one through the interior passage of the cartridge base unit and the other through the exterior passage formed between the plurality of cartridge base units. When harmful gas passes through the filter element, the harmful gas sequentially passes through the air inlet, the special-shaped stagnant air flow channel and the air outlet along the flow direction of the harmful gas, the harmful gas flows out from the air outlet after being purified, and organic matters, bacteria, viruses and the like in the harmful gas are thoroughly decomposed into carbon dioxide and water through the photocatalysis in the flow process of the filter element to achieve the purification effect. The inner cavity of the special-shaped stagnant air flow channel is designed to be a cylindrical or other straight-through flow channel structure, for example, the inner cavity of the special-shaped stagnant air flow channel is of a cylindrical structure, gas can rapidly pass through the special-shaped stagnant air flow channel and cannot be in full contact with a photocatalyst to generate chemical reaction, and accordingly air purification is incomplete. When the gas flows through the special-shaped detained air flow channel, the flow path is suddenly increased or decreased, so that the corresponding air flow velocity is periodically decreased or increased, and the turbulence of the polluted gas in the gourd-shaped structure is effectively improved; and when gas flows through the inside of the gourd-shaped flow channel, the air can be in a local internal circulation state in the special-shaped retained air flow channel, so that the polluted gas is repeatedly contacted with the photocatalytic material, and the photocatalytic effect is improved. In addition, for the air flowing tightness, the general air inlet, the special-shaped retained air flow channel and the air outlet are of an integrally formed structure, so that the problem that the air is leaked in the purification process and cannot be thoroughly purified is avoided.
The beneficial effects are that: harmful gas can flow through the inside of the special-shaped detained air flow channel and can also flow through the outside of the special-shaped detained air flow channel, so that the contact area between the gas and a photocatalytic material can be effectively increased, and the effect of photocatalytic degradation of the harmful gas is improved; when the gas flows through the inside of the special-shaped detained air flow channel, the air can be in a local internal circulation state in the single special-shaped detained air flow channel, so that the polluted gas is repeatedly contacted with the photocatalytic material, and the photocatalytic effect is further improved; the device has small wind resistance and can effectively improve the photocatalysis efficiency; the filter element does not need to be replaced, and the filter element can play a role in effectively sterilizing and disinfecting besides the function of degrading harmful gas, so that indoor microbial pollution is avoided.
Referring to fig. 2, in an embodiment of the present invention, the end surfaces of the air inlet and the air outlet are circular, the plurality of filter element basic units are arranged in a square array, and a notch for placing the light source is disposed in the center of the square array. The light source is one or more of a single-wavelength/multi-wavelength ultraviolet lamp or ultraviolet lamp bead, an LED lamp and a fluorescent lamp.
The working principle is as follows: the filter element basic units are arranged in a circular or regular polygon array in an equidistant and collinear mode, a light source is arranged above the midpoint of the array, and the light source uniformly irradiates the outer wall and the inner cavity of the filter element basic units.
Has the advantages that: the filter element basic units arranged in the circular or regular polygonal array can ensure that all positions can irradiate ultraviolet rays, so that the photocatalyst coating at each position can be utilized to the maximum. In addition, although air needs to be circulated in the filter element in a turbulent flow manner in order to improve the catalytic effect, the air flow rate and the air purification rate need to be considered, the basic units of the filter element are arranged in a circular or regular polygonal array to keep the air flow channels formed among the basic units of the filter element consistent, and the air can pass through the basic units orderly and uniformly.
In an embodiment of the present invention, the air retention cavity is a cylindrical cavity, and the air retention cavity is a cylindrical cavity or a cylindrical cavity.
The working principle is as follows: because the special-shaped air retention flow channel is formed by connecting a plurality of sections of air retention cavities in series end to end, the plurality of sections of air retention cavities can be all gourd-shaped, all ellipsoid-shaped, all cuboid-shaped, all cone-shaped, or one section of air retention cavity can be gourd-shaped, the next section connected is ellipsoid-shaped, and so on. Namely, the air-retaining cavities can be combined freely.
Has the advantages that: the special-shaped air retention flow channel is formed by a plurality of sections of air retention cavities with the same or different shapes, so that air in the cavities can form a local internal circulation state to increase the contact time of the air and a catalytic material and further improve the photocatalysis effect. And adopt the air of different shapes to detain the cavity, can not only make the air form the inner loop, can also form the air current at the junction and amass the district, and harmful substance in the air is general great in quality, can form the layered structure at air current amass the district air, thereby harmful substance layer can hug closely the inner chamber lateral wall and abundant and deep reacts with the photocatalyst, thoroughly clears away harmful substance in the air.
Referring to fig. 5, in an embodiment of the present invention, the outer wall of the air inlet of the filter element basic unit is a cylindrical structure, the diameter of the inner cavity pipeline is gradually reduced along the air flowing direction, and the surface of the inner cavity pipeline is an arc surface.
The working principle is as follows: the outer wall of the air inlet is still in a cylindrical structure so as to ensure that air can smoothly flow into gaps of the basic unit of the filter element, the inner cavity pipeline of the air inlet is set into the reducing pipeline so as to improve the speed of the air flowing into the special-shaped air retention flow channel, and turbulent flow formed after the air flow with higher speed suddenly becomes larger and smaller in the air retention cavity and flows through the air retention cavity is more obvious, so that the air retention time is further prolonged.
Has the advantages that: the air inlet with the shape can improve the air flow velocity flowing into the basic unit of the filter element and enhance the formed turbulent flow on the premise of not influencing the air flow between the gaps of the basic unit of the filter element, thereby improving the purification effect of the air in the basic unit of the filter element.
Referring to fig. 5, in an embodiment of the present invention, the inner cavity of the air outlet of the filter element basic unit is a cylindrical structure, the diameter of the outer wall of the filter element basic unit is gradually increased along the air flowing direction, and the surface of the outer wall is an arc surface.
The working principle is as follows: the inner chamber of air outlet sets up to cylindrical structure for the air after in order to facilitate the purification can be smooth and easy outflow, improves purification rate, and the design of its outer wall is that the reducing structure is because the air flow between the filter core basic unit clearance is smooth and easy, and purifying effect is not good, thereby reduces the air volume that flows in the unit interval through the clearance that reduces filter core basic unit exit to the length of time that the extension air stayed filter core basic unit clearance department.
Has the advantages that: the air outlet with the shape prolongs the time of air between the basic units of the filter element on the premise of not influencing the air flow in the basic units of the filter element, thereby improving the air purification effect of the outer wall of the basic units of the filter element.
In an embodiment of the present invention, the filter element is further provided with a detection control device, the detection control device includes a controller, a gas flow sensor disposed at an end of the air inlet, and a gas quality sensor disposed at an end of the air outlet;
the controller is electrically connected with the control element of the ultraviolet lamp and the control element of the exhaust fan;
the gas flow sensor is used for detecting the gas flow velocity of the inner cavity and the outer side of the basic unit of the filter element;
the gas quality sensor respectively detects the gas purification quality of the inner cavity and the outer side of the basic unit of the filter element.
The flow rate of the filtered air and the illumination intensity of the ultraviolet lamp are intelligently controlled by detecting the gas flow rate and the gas purification quality between the inner cavity of the basic unit of the filter element and the outer side gap, and the impurities in the harmful gas are completely removed.
Referring to fig. 6, in an embodiment of the present invention, the controller includes a control circuit, and the control circuit includes
A pin 1 of the gas flow sensor is connected with a voltage input end, a pin 3 of the gas flow sensor is grounded, a capacitor C1 is connected between the pins 1 and 3, and a pin 2 of the gas flow sensor is sequentially connected with a resistor R1 and an inductor M1 in series;
the pin 1 of the gas mass sensor is connected with a voltage input end, the pin 3 of the gas mass sensor is grounded, a capacitor C2 is connected between the pins 1 and 3, and the pin 2 of the gas mass sensor is sequentially connected with a resistor R2 and an inductor M2 in series;
the upper end of the capacitor C3 is connected with the right end of the inductor M1, and the lower end of the capacitor C3 is connected with the right end of the capacitor M2;
a positive phase input end of the gain device T1 is connected in series with the R4, the other end of the R4 is respectively connected with the R6 and the R7, a negative phase input end of the gain device T1 is respectively connected with the lower end of the capacitor C3, the resistor R3 and the capacitor C4, and an output end of the gain device T1 is connected with one end of the R5;
a capacitor C4, the upper end of which is connected with the negative phase input end of the booster T1, and the lower end of which is grounded;
the other end of the resistor R5 is sequentially connected with a resistor R6 and a resistor R7 in series, and the other end of the resistor R7 is grounded;
a voltage stabilizing diode P1, the anode of which is connected with the right end of R5, the cathode of which is connected with the cathode of the voltage stabilizing diode P2, and the anode of the voltage stabilizing diode P2 is grounded;
a pin 1 of the frequency transmitter W1 is respectively connected with the anodes of a resistor R8 and a diode D2, the cathode of the diode D2 is grounded, and the other end of the resistor R8 is connected with a power supply; pin 2Y is connected to the anode of zener diode P1; pins 3 and 4 are grounded; pins 5 and 9 are connected with the input end of the power supply; a pin 8 of the capacitor is respectively connected with the cathode of the diode D3 and one end of the capacitor C5, the anode of the diode D3 is grounded, and the other end of the capacitor C5 is connected with a pin 7 and a pin 6; the pin 6 is also connected with a resistor R9 and a capacitor C6 which are connected in parallel, and the pin 6, the resistor R9 and the capacitor C6 are grounded;
the negative phase input ends of the gain device T2 and the gain device T3 are connected with a voltage signal output by a pin 7 of the frequency transmitter W1, the voltage signal is compared with the voltage of a comparison circuit consisting of resistors R10, R11 and R12 connected with the positive phase input ends of the gain device T2 and the gain device T3, the output end of the gain device T2 is connected with an ultraviolet control element L1, and the output end of the gain device T3 is connected with a control element L2 of an exhaust fan.
Two paths of detection signals of the gas flow sensor and the gas quality sensor are filtered and converted into digital square wave signals, and the digital square wave signals are stabilized by the two voltage stabilizing diodes and then transmitted by the signal transmission line, so that the signals are prevented from being attenuated and interfered in the transmission process, and the accuracy of signal measurement and acquisition is improved.
In an embodiment of the present invention, the light source is fixedly disposed directly above the notch 5 through the connecting member and does not contact with the filter element.
The filter element is generally placed in the filter, the light source is fixed on the inner wall of the filter through the connecting piece, and the position of the light source on the filter is just above the central gap of the filter element, so that the light source can uniformly irradiate all parts of the filter element.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit of the present invention.
Claims (8)
1. A photocatalysis air purification filter core which is characterized in that: form by a plurality of filter core basic unit arrays, filter core basic unit includes:
the air inlet (1) is of a tubular structure, one end of the air inlet is a free end, and the other end of the air inlet is communicated with a special-shaped stagnant air flow channel (2);
the special-shaped air retention flow channel (2) is formed by stacking and connecting a plurality of air retention cavities (3) in series end to end, and inner cavities of the air retention cavities (3) are communicated;
the air outlet (4) is of a tubular structure, one end of the air outlet is connected with the air outlet end of the special-shaped detained air flow channel (2), and the other end of the air outlet is a free end;
and the photocatalytic coating is attached to the inner cavity surface and the outer wall of the air inlet (1), the special-shaped stagnant air flow channel (2) and the air outlet (4).
2. A photocatalytic air purification cartridge as set forth in claim 1, wherein: the end faces of the air inlet (1) and the air outlet (4) are circular or polygonal, the filter element basic units are arranged in a circular or regular polygonal array, and a notch (5) for placing a light source is formed in the center of the circular or regular polygonal array.
3. A photocatalytic air purification cartridge as set forth in claim 1, wherein: the special-shaped air retention flow channel (2) is formed by one or more air retention cavities (3), and the air retention cavities (3) are gourd-shaped, ellipsoid-shaped, cube-shaped or cone-shaped.
4. A photocatalytic air purification cartridge as set forth in claim 1, wherein: the outer wall of an air inlet (1) of the filter element basic unit is in a cylindrical or polygonal structure, the diameter of an inner cavity pipeline of the filter element basic unit is gradually reduced along the air flowing direction, and the surface of the inner cavity pipeline is an arc surface.
5. A photocatalytic air purification cartridge as in claim 1 or 4, wherein: the inner cavity of the air outlet (4) of the filter element basic unit is of a cylindrical structure, the diameter of the outer wall of the filter element basic unit is gradually increased along the air flowing direction, and the surface of the outer wall is an arc surface.
6. A photocatalytic air purification cartridge as set forth in claim 1, wherein: the filter element is also provided with detection control equipment, and the detection control equipment comprises a controller, a gas flow sensor (6) arranged at the end part of the air inlet (1) and a gas quality sensor (7) arranged at the end part of the air outlet (4);
the controller is electrically connected with the control element of the light source and the control element of the exhaust fan;
the gas flow sensor (6) is used for detecting the gas flow velocity of the inner cavity and the outer side of the basic unit of the filter element;
and the gas quality sensor (7) is used for respectively detecting the gas purification quality of the inner cavity and the outer side of the basic unit of the filter element.
7. A photocatalytic air purification cartridge as set forth in claim 6, wherein:
the controller has a control circuit, the control circuit comprising:
a pin 1 of the gas flow sensor is connected with a voltage input end, a pin 3 of the gas flow sensor is grounded, a capacitor C1 is connected between the pins 1 and 3, and a pin 2 of the gas flow sensor is sequentially connected with a resistor R1 and an inductor M1 in series;
the pin 1 of the gas mass sensor is connected with a voltage input end, the pin 3 of the gas mass sensor is grounded, a capacitor C2 is connected between the pins 1 and 3, and the pin 2 of the gas mass sensor is sequentially connected with a resistor R2 and an inductor M2 in series;
the upper end of the capacitor C3 is connected with the right end of the inductor M1, and the lower end of the capacitor C3 is connected with the right end of the capacitor M2;
a positive phase input end of the gain device T1 is connected in series with the R4, the other end of the R4 is respectively connected with the R6 and the R7, a negative phase input end of the gain device T1 is respectively connected with the lower end of the capacitor C3, the resistor R3 and the capacitor C4, and an output end of the gain device T1 is connected with one end of the R5;
a capacitor C4, the upper end of which is connected with the negative phase input end of the booster T1, and the lower end of which is grounded;
the other end of the resistor R5 is sequentially connected with a resistor R6 and a resistor R7 in series, and the other end of the resistor R7 is grounded;
a voltage stabilizing diode P1, the anode of which is connected with the right end of R5, the cathode of which is connected with the cathode of the voltage stabilizing diode P2, and the anode of the voltage stabilizing diode P2 is grounded;
a pin 1 of the frequency transmitter W1 is respectively connected with the anodes of a resistor R8 and a diode D2, the cathode of the diode D2 is grounded, and the other end of the resistor R8 is connected with a power supply; pin 2Y is connected to the anode of zener diode P1; pins 3 and 4 are grounded; pins 5 and 9 are connected with the input end of the power supply; a pin 8 of the capacitor is respectively connected with the cathode of the diode D3 and one end of the capacitor C5, the anode of the diode D3 is grounded, and the other end of the capacitor C5 is connected with a pin 7 and a pin 6; the pin 6 is also connected with a resistor R9 and a capacitor C6 which are connected in parallel, and the pin 6, the resistor R9 and the capacitor C6 are grounded;
the negative phase input ends of the gain device T2 and the gain device T3 are connected with a voltage signal output by a pin 7 of the frequency transmitter W1, the voltage signal is compared with the voltage of a comparison circuit consisting of resistors R10, R11 and R12 connected with the positive phase input ends of the gain device T2 and the gain device T3, the output end of the gain device T2 is connected with an ultraviolet control element L1, and the output end of the gain device T3 is connected with a control element L2 of an exhaust fan.
8. A photocatalytic air purification cartridge as set forth in claim 2, wherein: the light source is fixedly arranged right above the notch (5) through a connecting piece and is not contacted with the filter element.
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| CN112206658A (en) * | 2019-07-11 | 2021-01-12 | 赵志伟 | Photocatalysis air purification filter core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112206658A (en) * | 2019-07-11 | 2021-01-12 | 赵志伟 | Photocatalysis air purification filter core |
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