CN114110864B - Air duct type fresh air purifying system - Google Patents
Air duct type fresh air purifying system Download PDFInfo
- Publication number
- CN114110864B CN114110864B CN202111187159.5A CN202111187159A CN114110864B CN 114110864 B CN114110864 B CN 114110864B CN 202111187159 A CN202111187159 A CN 202111187159A CN 114110864 B CN114110864 B CN 114110864B
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- air
- wall
- filter
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
Abstract
The invention discloses an air duct type fresh air purification system which comprises an air duct, wherein an exhaust port is formed in the outer wall of one side of the air duct, an exhaust pipe is arranged on the inner wall of the exhaust port, a fan is fixedly connected to the inner wall of the exhaust pipe, an air inlet is formed in the outer wall of the other side of the air duct, an air inlet pipe is fixedly connected to the inner wall of the air inlet, a filtering mechanism is fixedly connected to one side of the inner wall of the air duct, the filtering mechanism comprises a connecting pipe and a second filter plate, the connecting pipe is connected with the second filter plate through bolts, and a rotating mechanism is fixedly connected between the inner walls of two opposite sides of the connecting pipe. The invention can prevent impurities in the air from blocking the third filter plate, thereby affecting the purification of the air, treating suspended matters doped in the air, accelerating the purification speed of the air, treating dust adhered on the filter screen and preventing the dust from blocking the surface of the filter screen.
Description
Technical Field
The invention relates to the technical field of fresh air purification systems, in particular to an air duct type fresh air purification system.
Background
The fresh air purifying system consists of a fan, an air inlet, an air outlet, various pipelines and connectors, the fan installed in the suspended ceiling is connected with a series of air outlets through the pipelines, the fan is started, indoor polluted air is discharged outdoors through the air outlet and the fan, negative pressure is formed indoors, outdoor fresh air enters the room through the air inlet, fresh air is filtered, sterilized and sterilized in the room while air is supplied, heat recovery exchange is carried out between the air discharged through the host and the fresh air, most of recovered energy is returned into the room through the fresh air, and therefore the purpose of purifying indoor air is achieved, and indoor people can breathe high-quality fresh air.
Because external air can be doped with impurities, but current equipment can not be effectual handle the impurity of doping in the air, consequently, the dust can be absorbed by people to the flow of air to can cause the threat to people's health, consequently, need carry out purification treatment to the air through clarification plant.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an air duct type fresh air purifying system.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an tuber pipe formula new trend clean system, includes the tuber pipe, the gas vent has been seted up to one side outer wall of tuber pipe, and the inner wall of gas vent is provided with the blast pipe, the inner wall fixedly connected with fan of blast pipe, the air inlet has been seted up to the opposite side outer wall of tuber pipe, and the inner wall fixedly connected with intake pipe of air inlet, one side fixedly connected with filter media of tuber pipe inner wall, and filter media includes connecting pipe and second filter plate, through bolted connection between connecting pipe and the second filter plate, fixedly connected with slewing mechanism between the relative both sides inner wall of connecting pipe, and slewing sleeve, blade and second magnet, form the rotation between slewing sleeve and the dead lever and be connected, blade and second magnet are fixed at the outer wall of slewing sleeve in turn, the equal fixedly connected with supporting shoe of both sides inner wall that the connecting pipe is relative, and one side outer wall fixedly connected with spring of supporting shoe, one side outer wall fixedly connected with filter bowl of spring, a plurality of filter holes have been seted up to one side outer wall fixedly connected with third filter plate of filter bowl, one side outer wall fixedly connected with first magnet of third filter plate of first magnet, and first magnet of second magnet, between the first filter plate of second magnet is the font each other.
Preferably, a first filter plate is fixedly connected to one side of the inner wall of the air inlet pipe, and the aperture of the first filter plate is larger than that of the second filter plate.
Preferably, a duct is fixedly connected to one side of the inner wall of the air duct, and the duct is funnel-shaped.
Preferably, a plurality of stop rods are rotatably connected between the inner walls of the two opposite sides of the guide pipe through bearings, and a plurality of spines are arranged on the outer walls of the stop rods.
Preferably, a dust removing mechanism is fixedly connected to one side of the inner wall of the air pipe, and the dust removing mechanism is located between the guide pipe and the filtering mechanism.
Preferably, the dust removing mechanism comprises a fixing frame and a connecting belt, the fixing frame is connected with the connecting belt through bolts, the cross section of the connecting belt is triangular, and the connecting belt is made of elastic materials.
Preferably, a plurality of barbs are arranged on the outer walls of the two sides of the connecting belt, and the barbs are obliquely arranged.
Preferably, the inner wall of the air pipe is connected with a filter screen through a hinge, the filter screen consists of a plurality of filter discs, two adjacent filter discs are connected through a spring chain, and the filter discs are in wave shapes.
The beneficial effects of the invention are as follows:
1. through the filter mechanism that sets up, when contact between air and the filter mechanism, can carry out filtration purification treatment to the air through the second filter plate, and the air after filtering can contact between blade, thereby drive the blade through the flow of air and rotate, and then carry out stirring treatment to the air through the rotation of blade, so as to improve the mobility of air, thereby improve the filtration rate of air, and because alternate distribution is on the commentaries on classics cover between blade and the second magnet, and mutual exclusion between first magnet and the second magnet, therefore, when the second magnet rotates to one side, the distance between first magnet can be gradually close, thereby can make the third filter plate to one side swing under the effect of repulsion force, and when the second magnet is kept away from first magnet, the third filter plate can be moved to the opposite direction under the effect of spring, and cycle, the third filter plate can be reciprocated under the effect of repulsion force and elasticity, thereby can improve the purifying effect of third to the air, prevent impurity in the air from causing the jam to the third filter plate, and influence to the purification of air, in addition, when the third is moving in the opposite direction, the distance between first magnet and the second magnet can be gradually close to one side, thereby the mobility is still increased under the effect of the second filter plate, the air is increased, thereby, the air can be accumulated under the effect of the air, and the air is further increased, thereby, the efficiency is increased, and the air is guaranteed, and the air is moved to the opposite to the movement, and has increased, and has the effect that the effect on the opposite movement, and has the opposite effect;
2. through the dust removing mechanism, when air contacts with the dust removing mechanism, the cross section of the connecting belt is triangular, so that air flows to two sides of the connecting belt, and a plurality of barbs are distributed on two sides of the connecting belt, so that doped suspended matters of the air can be hooked under the action of the barbs, and the doped suspended matters in the air can be treated;
3. through the filter screen that sets up, because the filter screen comprises a plurality of filter discs, and the shape of filter disc is wavy, consequently, when contact between air and the filter screen, the filter screen can be the wobbling of wave formula under the effect of air, consequently, the contact surface between filter screen and the air can increase, in addition, the swing of filter screen can accelerate the purification rate of air, thereby further carry out purification treatment to the air, and the filter screen can handle the dust of adhesion on the filter screen when the swing, prevent that the dust from causing the jam to the surface of filter screen, thereby cause the influence to the purification of air.
Drawings
FIG. 1 is a schematic diagram of a wind pipe type fresh air purifying system according to the present invention;
FIG. 2 is a schematic diagram of a filtering mechanism of an air duct type fresh air purifying system according to the present invention;
FIG. 3 is a schematic diagram of a dust removing mechanism of an air duct type fresh air purifying system according to the present invention;
FIG. 4 is a schematic diagram of the structure of the A-site of the air duct type fresh air purification system provided by the invention;
fig. 5 is a schematic diagram of a duct structure of an air duct type fresh air purifying system according to the present invention.
In the accompanying drawings: 1-an air pipe; 2-a filtering mechanism; 3-a dust removing mechanism; 4, filtering the mixture by a filter screen; 5-a catheter; 6, an exhaust pipe; 7-a fan; 8-stop lever; 9, an air inlet pipe; 10-a first filter plate; 11-connecting pipes; 12-a first magnet; 13-turning sleeve; 14-leaf blades; 15-a second filter plate; 16-a fixed rod; 17-a second magnet; 18-a third filter plate; 19-filtering holes; 20-a filter bucket; 21-a spring; 22-supporting blocks; 23-fixing frame; 24-connecting bands; 25-barbs.
Detailed Description
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Referring to FIGS. 1-5, an air duct type fresh air purification system comprises an air duct 1, an air outlet is formed in the outer wall of one side of the air duct 1, an air exhaust pipe 6 is arranged on the inner wall of the air outlet, a fan 7 is connected to the inner wall of the air exhaust pipe 6 through bolts, an air inlet is formed in the outer wall of the other side of the air duct 1, an air inlet pipe 9 is connected to the inner wall of the air inlet through bolts, a filter mechanism 2 is connected to one side of the inner wall of the air duct 1 through bolts, the filter mechanism 2 comprises a connecting pipe 11 and a second filter plate 15, the connecting pipe 11 is connected with the second filter plate 15 through bolts, a rotating mechanism is connected to the inner walls of two opposite sides of the connecting pipe 11 through bolts, the rotating mechanism comprises a fixed rod 16, a rotating sleeve 13, a blade 14 and a second magnet 17, a rotating connection is formed between the rotating sleeve 13 and the fixed rod 16, the blade 14 and the second magnet 17 are alternately fixed on the outer wall of the rotating sleeve 13, the inner walls of two opposite sides of the connecting pipe 11 are connected with a supporting block 22 through bolts, one side outer wall of the supporting block 22 is connected with a spring 21 through bolts, one side outer wall of the spring 21 is connected with a filter bucket 20 through bolts, one side outer wall of the filter bucket 20 is provided with a plurality of filter holes 19, one side outer wall of the filter bucket 20 is connected with a third filter plate 18 through bolts, one side outer wall of the third filter plate 18 is connected with a first magnet 12 through bolts, the first magnet 12 and the second magnet 17 repel each other, the shape of the third filter plate 18 is herringbone, when air contacts with the filter mechanism 2, the air is filtered and purified through the second filter plate 15, the filtered air contacts with the blades 14, thereby driving the blades 14 to rotate through the flow of the air, stirring the air through the rotation of the blades 14, so as to improve the fluidity of the air, the air filtering speed is improved, the blades 14 and the second magnets 17 are alternately distributed on the rotating sleeve 13, and the first magnets 12 and the second magnets 17 are mutually exclusive, so that when the second magnets 17 rotate to one side, the distance between the second magnets 17 and the first magnets 12 is gradually close, the third filter plate 18 swings to one side under the action of repulsive force, when the second magnets 17 are far away from the first magnets 12, the third filter plate 18 moves to the opposite direction under the action of the springs 21, and repeatedly swings back and forth under the action of repulsive force and elastic force, the air purifying effect of the third filter plate 18 on the air is improved, the third filter plate 18 is prevented from being blocked by impurities in the air, the air purifying effect is influenced, and in addition, when the third filter plate 18 moves to the opposite direction, the distance between the first magnets 12 and the second magnets 17 is gradually increased, the repulsive force remains between the first magnets, so that the rotating speed of the rotating mechanism can be accelerated under the action of repulsive force, the air flowing property is further improved, and the third filter plate 18 is shaped like a Chinese character 'V', and the air purifying effect is prevented from being accumulated on the third filter plate 18, and the air purifying effect is prevented from being caused on the two sides.
In the invention, one side of the inner wall of the air inlet pipe 9 is connected with a first filter plate 10 through bolts, and the aperture of the first filter plate 10 is larger than that of a second filter plate 15.
In the invention, one side of the inner wall of the air pipe 1 is connected with a guide pipe 5 through a bolt, and the guide pipe 5 is funnel-shaped.
In the invention, a plurality of stop rods 8 are rotatably connected between the inner walls of two opposite sides of a guide pipe 5 through bearings, and a plurality of spines are arranged on the outer walls of the stop rods 8.
In the invention, one side of the inner wall of the air pipe 1 is connected with a dust removing mechanism 3 through a bolt, and the dust removing mechanism 3 is positioned between a guide pipe 5 and a filtering mechanism 2.
In the invention, the dust removing mechanism 3 comprises a fixing frame 23 and a connecting belt 24, the fixing frame 23 is connected with the connecting belt 24 through bolts, the cross section of the connecting belt 24 is triangular, and the connecting belt 24 is made of elastic materials.
In the invention, a plurality of barbs 25 are arranged on the outer walls of the two sides of the connecting belt 24, and the barbs 25 are obliquely arranged, when air is in contact with the dust removing mechanism 3, as the cross section of the connecting belt 24 is triangular, air flows to the two sides of the connecting belt 24, and a plurality of barbs 25 are distributed on the two sides of the connecting belt 24, so that air doped suspended matters can be hooked under the action of the barbs 25, and the air doped suspended matters can be treated.
According to the invention, the inner wall of the air pipe 1 is connected with the filter screen 4 through the hinge, the filter screen 4 is composed of a plurality of filter discs, two adjacent filter discs are connected through the spring chain, the filter discs are in wave shapes, and the filter screen 4 is composed of a plurality of filter discs, and the filter discs are in wave shapes, so that when air is contacted with the filter screen 4, the filter screen 4 can swing in wave shapes under the action of air, the contact surface between the filter screen 4 and the air is increased, in addition, the swing of the filter screen 4 can accelerate the air purification speed, so that the air is further purified, and the filter screen 4 can process dust adhered to the filter screen 4 during swing, so that the dust is prevented from blocking the surface of the filter screen 4, and the air purification is influenced.
Working principle: when in use, air is conveyed to the air pipe 1 through the air inlet pipe 9, preliminary filtration treatment is carried out on the air through the first filter plate 10, when the air is contacted with the filtering mechanism 2, filtration purification treatment is carried out on the air through the second filter plate 15, the filtered air is contacted with the blades 14, the blades 14 are driven to rotate through the flowing of the air, and then the air is stirred through the rotation of the blades 14, so that the fluidity of the air is improved, the filtering speed of the air is improved, and as the blades 14 and the second magnets 17 are alternately distributed on the rotating sleeve 13, the first magnets 12 and the second magnets 17 are mutually exclusive, therefore, when the second magnets 17 rotate to one side, the distance between the second magnets 17 and the first magnets 12 is gradually approximate, so that the third filter plate 18 swings to one side under the action of the repulsive force, when the second magnets 17 are far away from the first magnets 12, the third filter plate 18 moves in the opposite direction by the spring 21, and the third filter plate 18 swings back and forth under the repulsive force and the elastic force, so that the air purifying effect of the third filter plate 18 can be improved, the air purifying effect is prevented from being influenced by the air impurity blocking the third filter plate 18, in addition, when the third filter plate 18 moves in the opposite direction, although the distance between the first magnet 12 and the second magnet 17 is gradually increased, the repulsive force still remains between the first magnet and the second magnet, so that the rotation speed of the rotation mechanism can be increased under the repulsive force, the air fluidity can be further improved, and in addition, because the third filter plate 18 is shaped like a Chinese character 'pin', the air flows to both sides of the third filter plate 18, so that the air can be prevented from accumulating to cause the impurity accumulation on the third filter plate 18, thus the purification efficiency to the air influences, when the contact between air and the dust removing mechanism 3, because the cross section of connecting band 24 is triangle-shaped, consequently, the air can flow to the both sides of connecting band 24, and the both sides of connecting band 24 distribute and have a plurality of barb 25, consequently, the suspended solid of doping of air can be hooked under the effect of barb 25, thereby can handle the suspended solid of doping in the air, in addition, because connecting band 24 can the elastic material, consequently, the flow of air can drive connecting band 24 and carry out the random swing, consequently, can handle the suspended solid of piling up through the swing of connecting band 24, prevent that the piling up of suspended solid from causing the jam to dust removing mechanism 3, thereby the purification to the air influences, because filter screen 4 is constituteed by a plurality of filter discs, and the shape of filter disc is wavy, consequently, when the contact between air and filter screen 4, the effect of filter screen 4 can be the wave-like swing, consequently, the contact surface between filter screen 4 can increase, the swing of filter screen 4 can accelerate the purification rate of air, thereby further carry out the purification treatment to the air, and the swing can cause the dust to adhere to filter screen 4 when the filter screen 7, the dust can cause the dust to the exhaust pipe 7 to cause the effect on the surface of the fan, the fan is discharged when the fan is prevented from causing the dust to the filter screen 7 to the surface to be discharged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides an tuber pipe formula new trend clean system, includes tuber pipe (1), the gas vent has been seted up to one side outer wall of tuber pipe (1), and the inner wall of gas vent is provided with blast pipe (6), the inner wall fixedly connected with fan (7) of blast pipe (6), the air inlet has been seted up to the opposite side outer wall of tuber pipe (1), and the inner wall fixedly connected with intake pipe (9) of air inlet, a serial communication port, one side fixedly connected with filter media (2) of tuber pipe (1) inner wall, and filter media (2) include connecting pipe (11) and second filter plate (15), pass through bolted connection between connecting pipe (11) and second filter plate (15), fixedly connected with rotary mechanism between the opposite both sides inner wall of connecting pipe (11), and rotary mechanism includes dead lever (16), change cover (13), blade (14) and second magnet (17), form between change cover (13) and dead lever (16) and rotate and be connected, blade (14) and second magnet (17) are fixed at the outer wall of change at change cover (13), the equal fixedly connected with supporting shoe (22) of both sides opposite side inner wall of connecting pipe (11) and supporting shoe (21), one side fixedly connected with spring (21), a plurality of filter holes (19) are formed in the outer wall of one side of the filter bucket (20), a third filter plate (18) is fixedly connected to the outer wall of one side of the filter bucket (20), a first magnet (12) is fixedly connected to the outer wall of one side of the third filter plate (18), the first magnet (12) and the second magnet (17) repel each other, and the shape of the third filter plate (18) is herringbone;
one side of the inner wall of the air pipe (1) is fixedly connected with a dust removing mechanism (3), and the dust removing mechanism (3) is positioned between the guide pipe (5) and the filtering mechanism (2);
the dust removing mechanism (3) comprises a fixing frame (23) and a connecting belt (24), the fixing frame (23) is connected with the connecting belt (24) through bolts, the cross section of the connecting belt (24) is triangular, and the connecting belt (24) is made of elastic materials;
the outer walls of two sides of the connecting belt (24) are provided with a plurality of barbs (25), and the barbs (25) are obliquely arranged.
2. The air duct type fresh air purification system according to claim 1, wherein a first filter plate (10) is fixedly connected to one side of the inner wall of the air inlet pipe (9), and the aperture of the first filter plate (10) is larger than that of the second filter plate (15).
3. The air duct type fresh air purification system according to claim 1, wherein a duct (5) is fixedly connected to one side of the inner wall of the air duct (1), and the duct (5) is funnel-shaped.
4. A ducted fresh air purification system according to claim 3, characterized in that a plurality of stop bars (8) are rotatably connected between the inner walls of the two opposite sides of the duct (5) through bearings, and the outer walls of the stop bars (8) are provided with a plurality of spikes.
5. The air duct type fresh air purification system according to claim 1, wherein the inner wall of the air duct (1) is connected with a filter screen (4) through a hinge, the filter screen (4) is composed of a plurality of filter discs, two adjacent filter discs are connected through a spring chain, and the filter discs are in wave shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111187159.5A CN114110864B (en) | 2021-10-12 | 2021-10-12 | Air duct type fresh air purifying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111187159.5A CN114110864B (en) | 2021-10-12 | 2021-10-12 | Air duct type fresh air purifying system |
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| Publication Number | Publication Date |
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| CN114110864A CN114110864A (en) | 2022-03-01 |
| CN114110864B true CN114110864B (en) | 2023-05-05 |
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| CN202111187159.5A Active CN114110864B (en) | 2021-10-12 | 2021-10-12 | Air duct type fresh air purifying system |
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| CN114768406B (en) * | 2022-04-01 | 2023-09-26 | 上海蕙黔新材料科技有限公司 | Carrier vapor treatment equipment for producing catalyst based on impregnation method |
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| CN207745953U (en) * | 2017-12-11 | 2018-08-21 | 金真真 | A kind of solid-state sample grinding device of medical test |
| JP7319063B2 (en) * | 2018-06-15 | 2023-08-01 | 東洋アルミエコープロダクツ株式会社 | Ventilation fan cover lock |
| CN111237905B (en) * | 2020-03-04 | 2021-10-01 | 枣庄市东行制冷设备有限公司 | Dry-proof air conditioner with filter screen capable of being automatically cleaned |
| CN111729437A (en) * | 2020-07-10 | 2020-10-02 | 安徽天诚环保机械有限公司 | Industrial flue gas desulfurization denitration is with preventing blockking up row sediment device |
| CN112999081B (en) * | 2021-01-28 | 2022-12-16 | 河北安嘉药业有限公司 | Traditional Chinese medicinal material pretreatment and processing equipment |
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