CN110252074A - Dust-extraction unit is used in a kind of construction of indoor secondary - Google Patents

Abstract

The invention discloses a kind of indoor secondary construction dust-extraction units, including cabinet, primary dedusting mechanism, secondary dedusting mechanism, purification mechanism, dust-falling mechanism, walking mechanism and central controller, the air inlet of the primary dedusting mechanism is connected to the sweep-up pipe being set to outside the cabinet, the air inlet of the secondary dedusting mechanism is connected to the exhaust outlet of the primary dedusting mechanism, the exhaust outlet of the secondary dedusting mechanism is connected to by snorkel with the purification mechanism, and the dust-falling mechanism is connect with the purification mechanism by conduit；The walking mechanism includes mobile controller and universal wheel, and the mobile controller is electrically connected with the universal wheel；Mobile controller can control the start and stop and steering of universal wheel after being connected to instruction.The present invention can absorb the dust and pernicious gas in air in maximum efficiency, realize multistage absorption, progressive, dedusting is thorough by two-stage dedusting first class purification.

Description

Dust-extraction unit is used in a kind of construction of indoor secondary

Technical field

The present invention relates to dedusting technology fields, and in particular to dust-extraction unit is used in a kind of construction of indoor secondary.

Background technique

Fitted up in secondary construction operation indoors, interior often generates flue gas a large amount of containing dust, in order to realize by These dust, flue gas are separated from air, harm of the reduction dust to environment and human body, and in actual life, worker is sometimes Carry out hand ashing can be entered the room, the severe dust atmosphere in the secondary construction operation of interior decoration easily causes worker to suffer to exhale Tract disease is inhaled, causes very big security risk to the health of meeting staff, at this moment generally requires to utilize cleaner Instead of manually handling the flue gas containing dust.

In existing cleaner, dust removing effects are bad, and worker still needs to enter the room, and manipulate on cleaner Control button realizes these steps of dedusting.

Summary of the invention

The purpose of the present invention is to provide a kind of indoor secondary construction dust-extraction units, are used for interior decoration operation, purpose It is to completely cut off fugitive dust and toxic gas when the diffusion of construction fugitive dust in secondary construction indoors causes atmosphere pollution and reduces construction The harm of worker's bring is given, it cannot be by solve the fugitive dust generated when the secondary construction of existing interior decoration and poisonous chemical gas The problem of effectively absorbing and handle.

The technical scheme to solve the above technical problems is that

A kind of indoor secondary construction dust-extraction unit, including cabinet, primary dedusting mechanism, secondary dedusting mechanism, clearing machine Structure, dust-falling mechanism, walking mechanism and central controller, it is described primary dedusting mechanism air inlet be set to the cabinet outside Sweep-up pipe connection, the air inlet of the secondary dedusting mechanism are connected to the exhaust outlet of the primary dedusting mechanism, and the secondary is removed The exhaust outlet of dirt mechanism is connected to by snorkel with the purification mechanism, and the dust-falling mechanism and the purification mechanism pass through conduit Connection；

The walking mechanism includes mobile controller and universal wheel, and the mobile controller is electrically connected with the universal wheel；

The front and back of the walking mechanism are equipped with ultrasonic sensor and infrared sensor, and the cabinet is equipped with gyro Instrument sensor and horizon sensor, the ultrasonic sensor, infrared sensor, gyro sensor and horizon sensor with The signal input part of the central controller communicates to connect, the signal output end of the mobile controller and the central controller Connection.

Further, blower is installed on the sweep-up pipe.

Further, the primary dedusting mechanism includes case cover, filter screen and fan, and the filter screen is fixedly mounted on institute The left end of case cover is stated, the center of the filter screen is installed with dust concentration sensor, and the fan is mounted on institute by support frame The right end of case cover is stated, the fan is connected with support frame by driving motor, is equipped between the filter screen and fan and is passed through branch Frame is fixedly mounted with and parallel ionization positive plate and dust suction positive plate, and the ionization positive plate is symmetrical above and below to be equipped with one group of ionization cathode Plate, the dust suction positive plate is symmetrical above and below to be equipped with one group of dust suction negative plate；

The signal input part of the dust concentration sensor and the central controller communicates to connect, the ionization anode The signal of plate, dust suction positive plate, ionization negative plate, dust suction negative plate, driving motor and blower and the central controller exports End communication connection.

Further, secondary dedusting mechanism includes rotoclone collector, and the rotoclone collector and the fan pass through exhaust The end of pipe connection, the rotoclone collector is equipped with funnel shaped dirt pocket.

Further, humidification mechanism is installed, the humidification mechanism includes water tank, water in the funnel shaped dirt pocket Pump, water inlet pipe and multiple spray heads, the water pump are mounted on the outer wall of rotoclone collector by strut, the water pump and water tank Connection, one end of the water inlet pipe are connected to water tank, and other end connection is fixedly installed on the inner wall of rotoclone collector, Duo Gesuo The spray head stated is evenly distributed on the water inlet pipe.

Further, the lower section of the dirt pocket is equipped with dust catch tray, and the dust catch tray is sensed equipped with weight Device, the cabinet are equipped with alarm, the signal input part communication connection of the weight sensor and the central controller, institute The signal output end for stating alarm and the central controller communicates to connect.

Further, purification mechanism includes purifying box, and plant source air cleaning liquid, the ventilation are filled in the purifying box The end of pipe is suspended on the liquid level in purifying box.

Further, dust-falling mechanism includes atomizer, and one end of the conduit is set to the bottom of the purifying box, described The other end of conduit installs the atomizer.

Further, high water level sensor and low water level sensor, the high water level sensor are equipped in the purifying box With low water level sensor with the central controller Electricity Federation.

Further, the top of the cabinet is equipped with handle, and bottom is equipped with activated carbon filter layer in the cabinet.

The invention has the following advantages:

(1) dust-extraction unit of the invention, which encounters barrier in dust removal process and can modify automatically advance route, avoids obstacle Object, can free movement indoors, the direction of motion and moving line of automatic control device, guarantee depositing dust distance repetitive rate reduce, Dustfall efficiency is improved, construction worker provides the working environment of low pollution to working, and the installation cost is low, occupied space It is small, it is easy to carry and mobile.

(2) present invention can absorb the dust and pernicious gas in air by two-stage dedusting first class purification in maximum efficiency, Multistage absorption is realized, progressive, dedusting is thorough, and sprinkling plant source air purifying preparation is accompanied in last cooperation again in air, Effective ingredient is terpene small molecule, can surround aldehyde, benzene, the ethers harmful pollutants in air, oxidation, decompose and remove, Although itself is stayed in air with certain smell, once completing oxidation course smell can rapidly disappear, rather than other plants The essential oil dying time is long, then increases the effective oxygen in air, is significantly improved to the Respiratory ft tive resistance of worker Effect.

(3) primary dedusting mechanism of the invention can filter out the dust in portion of air using filter screen, in dust When concentration is larger, signal is passed to central controller by dust sensor, and central controller controls ionize positive plate and electricity It is powered from negative plate, ionizes the gas molecule in air using high-voltage dc, a large amount of electronics and ion will be generated, electricity Son and ion are during travelling forward, to the two poles of the earth under the action of the electric field force that dust suction positive plate and dust suction negative plate form Mobile, the dust particles in air-flow are encountered in moving process keeps its charged, electrically charged particle under electric field force effect with air-flow to Opposite pole plate is taken exercises, and under electric field action, the free ion in air is mobile to the two poles of the earth, so that dust granule is inhaled It is attached on dust suction positive plate and dust suction negative plate, to achieve the effect that further dedusting.

(4) rotoclone collector sucking of the invention is curved by one section after primary dedusting mechanism treated dust-contained airflow Pipeline section enters inside cyclone dust collectors, and the centrifugal force generated is rotated by cyclone dust collectors by adsorbing powder dust in wet dust catcher On wall, dust is met water and is fallen in dust catch tray under the effect of gravity, while rotoclone collector can be by extra gas pressure Enter the purifying box of plant source air cleaning liquid is housed, powerful pressure can be applied to the liquid in purifying box, pressure forces plant Air cleaning liquid in source is ejected into indoor air through atomizer and purifies air, can will be indoor by absorbing and purifying layer by layer The fugitive dust and poisonous chemical gas that secondary construction generates effectively are absorbed and are handled.

Detailed description of the invention

Fig. 1 is the overall structure diagram that dust-extraction unit is used in indoor secondary construction of the invention；

Fig. 2 is the structural schematic diagram of primary dedusting mechanism of the invention；

Fig. 3 is the structural schematic diagram that humidification mechanism and rotoclone collector of the invention are coupled；

Wherein:

1- cabinet, 2- primary dedusting mechanism, 201- case cover, 202- filter screen, 203- fan, 204- dust concentration sensing Device, 205- support frame, 206- ionization positive plate, 207- dust suction positive plate, 208- ionization negative plate, 209- dust suction negative plate, 210- driving motor, 3- grade dedusting mechanism, 301- rotoclone collector, 302- dirt pocket, 4- purification mechanism, 401- purifying box, 402- high water level sensor, 403- low water level sensor, 5- dust-falling mechanism, 501- atomizer, 6- walking mechanism, 601- are mobile Controller, 602- universal wheel, 7- central controller, 8- sweep-up pipe, 801- blower, 9- snorkel, 10- conduit, 11- ultrasonic wave pass Sensor, 12- infrared sensor, 13- gyro sensor, 14- horizon sensor, 15- humidification mechanism, 1501- water tank, 1502- Water pump, 1503- water inlet pipe, 1504- spray head, 16- dust catch tray, 17- weight sensor, 18- alarm, 19- handle.

Specific embodiment

The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the invention.

Embodiment 1

Please refer to Fig. 1, a kind of indoor secondary construction dust-extraction unit, including cabinet 1, primary dedusting mechanism 2, secondary dedusting Mechanism 3, purification mechanism 4, dust-falling mechanism 5, walking mechanism 6 and central controller 7, it is described primary dedusting mechanism 2 air inlet with Sweep-up pipe 8 outside the cabinet 1 is connected to, the air inlet of the secondary dedusting mechanism 3 and the primary dedusting mechanism 2 The exhaust outlet of exhaust outlet connection, the secondary dedusting mechanism 3 is connected to by snorkel 9 with the purification mechanism 4, the depositing dust machine Structure 5 is connect with the purification mechanism 4 by conduit 10；

The present invention can absorb the dust and pernicious gas in air by two-stage dedusting first class purification in maximum efficiency, real Multistage absorption is showed, progressive, dedusting is thorough.

The walking mechanism 6 include mobile controller 601 and universal wheel 602, the mobile controller 601 with it is described universal 602 electrical connection of wheel；Mobile controller 601 can control the start and stop and steering of universal wheel 602 after being connected to instruction.

The front and back of the walking mechanism 6 are equipped with ultrasonic sensor 11 and infrared sensor 12, set on the cabinet 1 There are gyro sensor 13 and horizon sensor 14, the ultrasonic sensor 11, infrared sensor 12, gyro sensor 13 With horizon sensor 14 with the signal input part of the central controller 7 communicate to connect, the mobile controller 601 with it is described The signal output end of central controller 7 connects.

Dust-extraction unit of the invention if having barrier or channel, or has identical with sample during dedusting is advanced Object is judged using ultrasonic sensor 11 and infrared sensor 12 and acquired disturbance object is with a distance from car body, respectively by this A little data are transferred to central controller 7, and if it is greater than pre-set threshold value, central controller 7 sends instructions to mobile control Device 601, which controls universal wheel 602, to be continued to move ahead, if being less than threshold value, adjusts the given speed of service, shift and an also settable speed Sensor constantly corrects throttle, so that can move forwards when speed of travel very little；Pass through gyro sensor 13 and horizontal sensor Device 14 detects the gradient of current road, if detection current hill grade is greater than the gradient of setting, transmits the result to central controller 7, judgement is to the left or right turn certain angle, central controller 7 send instructions to mobile controller 601 and control universal wheel 602 Steering, carried out down when running to apart from next barrier, and according to ultrasonic sensor 11 and infrared sensor 12 The operation of one circulation.

Fig. 1 is please referred to, blower 801 is installed on the sweep-up pipe 8, blower 801 is used for air inspiration sweep-up pipe 8.

Referring to figure 2., the primary dedusting mechanism 2 includes case cover 201, filter screen 202 and fan 203, the filter screen 202 are fixedly mounted on the left end of the case cover 201, and the center of the filter screen 202 is installed with dust concentration sensor 204, institute The right end that fan 203 is mounted on the case cover 201 by support frame 205 is stated, the fan 203 and support frame 205 pass through driving Motor 210 connects, and is equipped with and is fixedly mounted with by bracket and parallel 206 He of ionization positive plate between the filter screen 202 and fan 203 Dust suction positive plate 207, the ionization positive plate 206 is symmetrical above and below to be equipped with one group of ionization negative plate 208, the dust suction positive plate 207 symmetrical above and below are equipped with one group of dust suction negative plate 209；The output shaft of the driving motor 210 and the fixed company of the central axis of flabellum It connects；

The signal input part of the dust concentration sensor 204 and the central controller 7 communicates to connect, and the ionization is just Pole plate 206, dust suction positive plate 207, ionization negative plate 208, dust suction negative plate 209, driving motor 210 and blower 801 with it is described The signal output end of central controller 7 communicates to connect.

Dust suction positive plate 207 and dust suction negative plate 209 of the invention is disposed as "T"-shaped, and being set as "T"-shaped can prevent Dust on dust suction positive plate 207 and dust suction negative plate 209 travels forward, to be detached from dust suction positive plate 207 and dust suction cathode Plate 209, can be improved adsorption effect.

Primary dedusting mechanism 2 of the invention can filter out the dust in portion of air using filter screen 202, in dust When concentration is larger, signal is passed to central controller 7 by dust sensor, and central controller 7 controls blower 801 and driving The starting of motor 210 and ionization positive plate 206 and ionization negative plate 208 are powered, and the gas in air is made using high-voltage dc Molecular ionization will generate a large amount of electronics and ion, and electronics and ion are during travelling forward, in dust suction positive plate 207 It is mobile to the two poles of the earth under the action of the electric field force formed with dust suction negative plate 209, the dust in air-flow is encountered in moving process Grain keeps its charged, and electrically charged particle is taken exercises with air-flow to opposite pole plate under electric field force effect, under electric field action, in air Free ion it is mobile to the two poles of the earth so that dust granule is adsorbed on dust suction positive plate 207 and dust suction negative plate 209, To achieve the effect that further dedusting.

Fig. 1 is please referred to, secondary dedusting mechanism 3 includes rotoclone collector 301, the rotoclone collector 301 and the fan 203 are connected to by exhaust pipe, and the end of the rotoclone collector 301 is equipped with funnel shaped dirt pocket 302；Funnel shaped dirt pocket 302 are conducive to collect dust.

Referring to figure 3., humidification mechanism 15 is installed, the humidification mechanism 15 includes in the funnel shaped dirt pocket 302 Water tank 1501, water pump 1502, water inlet pipe 1503 and multiple spray heads 1504, the water pump 1502 are mounted on whirlwind by strut and inhale On the outer wall of dirt device 301, the water pump 1502 is connect with water tank 1501, and one end of the water inlet pipe 1503 and water tank 1501 connect Logical, other end connection is fixedly installed on the inner wall of rotoclone collector 301, and multiple spray heads 1504 are evenly distributed on institute It states on water inlet pipe 1503, can also add booster on the water pump 1502.

Spray head 1504 in humidification mechanism 15 of the present invention can spray a small amount of fog on 301 inner wall of rotoclone collector, So that keep wet when 301 inner wall of rotoclone collector works, the centrifugal force that generates by cyclone dust collectors rotation is by adsorbing powder dust On the wall of wet rotoclone collector, dust is met water and can be fallen in dust catch tray 16 under the effect of gravity.

Fig. 1 is please referred to, the lower section of the dirt pocket 302 is equipped with dust catch tray 16, and the dust catch tray 16 is equipped with Weight sensor 17, the cabinet 1 are equipped with alarm 18, the signal of the weight sensor 17 and the central controller 7 The signal output end of input terminal communication connection, the alarm 18 and the central controller 7 communicates to connect.

The weight of the dust liquid gathered on 17 energy real-time measurement dust catch tray 16 of weight sensor of the invention, and will count According to central controller 7 is transferred to, when weight to big preset threshold value, central controller 7 controls alarm 18 and starts, staff The dust liquid on dust catch tray 16 can be laid down after getting the information and blank panel is installed.

Fig. 1 is please referred to, purification mechanism 4 includes purifying box 401, plant source air cleaning liquid is filled in the purifying box 401, The end of the snorkel 9 is suspended on the liquid level in purifying box 401.

The snorkel 9 is the fabulous snorkel 9 of compressive property, to prevent the plant source air in purifying box 401 net Change liquid to flow backwards, check-valves is housed, and nano-filtration membrane is housed in the exhaust outlet of snorkel 9, in snorkel 9 to prevent from not removing Most dust enters.

Fig. 1 is please referred to, dust-falling mechanism 5 includes atomizer 501, and one end of the conduit 10 is set to the purifying box 401 Bottom, the other end of the conduit 10 installs the atomizer 501.

It is of the invention while absorbing dust, extra gas can be pressed into empty equipped with plant source by rotoclone collector 301 The purifying box 401 of gas scavenging solution, can apply powerful pressure to the liquid in purifying box 401, and pressure forces plant source air net Change liquid to be ejected into indoor air through atomizer 501 and purifies air, i.e., by cyclone dust collectors to the suction of house dust, The wind pressure generated in operational process is converted to the spraying hydraulic pressure for making plant source air cleaning liquid, and combines atomizer 501 will Plant source scavenging solution is converted into mist；In this way by absorbing and purifying layer by layer, can construct indoor secondary the fugitive dust and toxic generated Chemical gas is effectively absorbed and is handled.

High water level sensor 402 and low water level sensor 403, the high water level sensor are equipped in the purifying box 401 402 and low water level sensor 403 with 7 Electricity Federation of central controller.

The plant source of 403 energy real-time monitoring purifying box 401 of high water level sensor 402 and low water level sensor of the invention is empty The height of gas scavenging solution liquid level conveys relevant information to staff, so that staff increases and decreases plant in time by alarm 18 Material resource air cleaning liquid.

The top of the cabinet 1 is equipped with handle 19, and bottom is equipped with activated carbon filter layer in the cabinet 1.

The activated carbon filter layer fills active carbon, and active carbon has stronger adsorption capacity, can not only adsorb in air A small amount of dust, toxic, the harmful chemical gas such as formaldehyde, benzene, toluene that ornament materials comes out can also be adsorbed, activity Charcoal also has many advantages, such as flourishing pore structure, and that there are also surface areas is big, performance is stable and power of regeneration is strong, every some time more It changes active carbon and avoids adsorption saturation.

In order to improve dustfall efficiency, can periodically be placed to the place passed by dust-extraction unit moving process Block activated Charcoal can also add active carbon filter screen in dust catch tray 16, carry out absorption processing in time to the dust being collected into, further strengthen Absorption and clean-up effect.

This dust-extraction unit may be designed to midget plant in processing, and preferably device is set as long 60cm wide 45cm high 55cm Rectangular parallelepiped structure, can also according to actual use situation be arranged to other any specifications, can be customized according to the house of different house types Distinctive dust-extraction unit；This device for reducing dust can accommodate the volume 0.021m3 of water, then plant source air cleaning liquid measure is about 21 It rises, the volume that active carbon can be accommodated in device is 0.003m3, is carrying for convenience and movement equipped with handle 19.

It is used for indoor secondary construction dedusting using dust-extraction unit of the invention, air pollution index to be 240 before depositing dust, empty Gas quality scale is IV grade, is 47 after depositing dust, and air quality rank is I grade, and after indoor device for reducing dust, air quality is in Degree heavily contaminated is reduced to excellent, and air quality has obtained apparent improvement.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of indoor secondary construction dust-extraction unit, which is characterized in that including cabinet (1), primary dedusting mechanism (2), secondary Dedusting mechanism (3), purification mechanism (4), dust-falling mechanism (5), walking mechanism (6) and central controller (7), the primary dust removal machine The air inlet of structure (2) sweep-up pipe (8) external with the cabinet (1) is set to is connected to, the air inlet of the secondary dedusting mechanism (3) Be connected to the exhaust outlet of the primary dedusting mechanism (2), the exhaust outlet of the secondary dedusting mechanism (3) by snorkel (9) and Purification mechanism (4) connection, the dust-falling mechanism (5) are connect with the purification mechanism (4) by conduit (10)；

The walking mechanism (6) includes mobile controller (601) and universal wheel (602), the mobile controller (601) with it is described Universal wheel (602) electrical connection；

The front and back of the walking mechanism (6) are equipped with ultrasonic sensor (11) and infrared sensor (12), the cabinet (1) It is equipped with gyro sensor (13) and horizon sensor (14), the ultrasonic sensor (11), infrared sensor (12), top Spiral shell instrument sensor (13) and horizon sensor (14) are communicated to connect with the signal input part of the central controller (7), described Mobile controller (601) is connect with the signal output end of the central controller (7).

2. indoor secondary construction dust-extraction unit according to claim 1, which is characterized in that pacify on the sweep-up pipe (8) Equipped with blower (801).

3. indoor secondary construction dust-extraction unit according to claim 2, which is characterized in that the primary dedusting mechanism It (2) include case cover (201), filter screen (202) and fan (203), the filter screen (202) is fixedly mounted on the case cover (201) center of left end, the filter screen (202) is installed with dust concentration sensor (204), and the fan (203) passes through Support frame (205) is mounted on the right end of the case cover (201), and the fan (203) and support frame (205) pass through driving motor (210) it connects, equipped with being fixedly mounted with by bracket and parallel ionization positive plate between the filter screen (202) and fan (203) (206) and dust suction positive plate (207), the ionization positive plate (206) is symmetrical above and below to be equipped with one group of ionization negative plate (208), institute State that dust suction positive plate (207) is symmetrical above and below to be equipped with one group of dust suction negative plate (209)；

The signal input part of the dust concentration sensor (204) and the central controller (7) communicates to connect, and the ionization is just Pole plate (206), dust suction positive plate (207), ionization negative plate (208), dust suction negative plate (209), driving motor (210) and blower (801) it is communicated to connect with the signal output end of the central controller (7).

4. indoor secondary construction dust-extraction unit according to claim 3, which is characterized in that secondary dedusting mechanism (3) packet It includes rotoclone collector (301), the rotoclone collector (301) is connected to the fan (203) by exhaust pipe, and the whirlwind is inhaled The end of dirt device (301) is equipped with funnel shaped dirt pocket (302).

5. indoor secondary construction dust-extraction unit according to claim 4, which is characterized in that the funnel shaped dirt pocket (302) it is equipped with humidification mechanism (15) in, the humidification mechanism (15) includes water tank (1501), water pump (1502), water inlet pipe (1503) it is mounted on by strut on the outer wall of rotoclone collector (301) with multiple spray heads (1504), the water pump (1502), The water pump (1502) connect with water tank (1501), and one end of the water inlet pipe (1503) is connected to water tank (1501), the other end Connection is fixedly installed on the inner wall of rotoclone collector (301), multiple spray heads (1504) be evenly distributed on it is described into On water pipe (1503).

6. indoor secondary construction dust-extraction unit according to claim 4, which is characterized in that the dirt pocket (302) Lower section is equipped with dust catch tray (16), and the dust catch tray (16) is equipped with weight sensor (17), sets on the cabinet (1) Have alarm (18), the signal input part of the weight sensor (17) and the central controller (7) communicates to connect, the report The signal output end of alert device (18) and the central controller (7) communicates to connect.

7. indoor secondary construction dust-extraction unit according to claim 4, which is characterized in that purification mechanism (4) includes net Change case (401), fills plant source air cleaning liquid in the purifying box (401), the end of the snorkel (9) is suspended at purification On liquid level in case (401).

8. indoor secondary construction dust-extraction unit according to claim 7, which is characterized in that dust-falling mechanism (5) includes mist Change spray head (501), one end of the conduit (10) is set to the bottom of the purifying box (401), the other end of the conduit (10) The atomizer (501) are installed.

9. indoor secondary construction dust-extraction unit according to claim 7, which is characterized in that in the purifying box (401) Equipped with high water level sensor (402) and low water level sensor (403), the high water level sensor (402) and low water level sensor (403) with the central controller (7) Electricity Federation.

10. -9 described in any item indoor secondary construction dust-extraction units according to claim 1, which is characterized in that the cabinet (1) top is equipped with handle (19), and the interior bottom of the cabinet (1) is equipped with activated carbon filter layer.