CN108443975A - A kind of air purifier - Google Patents
A kind of air purifier Download PDFInfo
- Publication number
- CN108443975A CN108443975A CN201810116281.5A CN201810116281A CN108443975A CN 108443975 A CN108443975 A CN 108443975A CN 201810116281 A CN201810116281 A CN 201810116281A CN 108443975 A CN108443975 A CN 108443975A
- Authority
- CN
- China
- Prior art keywords
- air
- nozzle
- strainer
- air purifier
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
Abstract
The invention discloses a kind of air purifiers, including shell, the shell includes air inlet, air duct and air outlet, it is provided with screen modules in the air duct, it is provided with humidity sensor on the shell, it is provided with humidification mechanism and desiccant body in the shell, the humidification mechanism includes water tank, water pipe, first water pump and nozzle, described water pipe one end extends in water tank, the other end is located above water tank, first water pump is arranged on water pipe, the nozzle is arranged is located at one end above water tank in water pipe, the nozzle is located at the upper end in air duct, the desiccant body includes desiccant wheel and electric rotating machine, the desiccant wheel is arranged in air duct, the desiccant wheel is driven by electric rotating machine.Good air purification effect of the present invention can also be detected the humidity of room air, and air is humidified or dehumidified automatically according to testing result.
Description
Technical field
The present invention relates to clarifier technical field, more particularly to a kind of air purifier.
Background technology
Air purifier is also known as " air cleaner ", is to refer to adsorb, decompose or convert various air pollutants, effectively
Improve the product of air cleanliness.With the improvement of people ' s living standards and the enhancing of environmental consciousness, more and more people's wills
Know the importance of fresh air, therefore the use of air purifier is more prevalent.
People are when using air purifier, and due to the difference of weather, indoor air will appear excessively dry or excessively
Moist phenomenon, and existing air purifier function is more single, cannot meet more requirements, there are limitations for function.
Invention content
To solve the above problems, the invention discloses air purifier, good air purification effect can also be to room air
Humidity be detected, and air is humidified or is dehumidified automatically according to testing result.
In order to achieve the above objectives, technical scheme is as follows：
A kind of air purifier, including shell, the shell include air inlet, air duct and air outlet, are set in the air duct
Screen modules are equipped with, humidity sensor is provided on the shell, humidification mechanism and desiccant body are provided in the shell,
The humidification mechanism includes water tank, water pipe, the first water pump and nozzle, and described water pipe one end extends in water tank, other end position
Above water tank, first water pump is arranged on water pipe, and the nozzle is arranged is located at one end above water tank in water pipe,
The water tank is located at the lower section in air duct, and the nozzle is located at the upper end in air duct, and the desiccant body includes desiccant wheel and rotation
Rotating motor, the desiccant wheel are arranged in air duct, and the desiccant wheel is driven by electric rotating machine, the humidity sensor, the
One water pump and electric rotating machine are electrically connected with the controller of air purifier.
Further, for the desiccant body between screen modules and air inlet, the humidification mechanism is located at filtering
Between screen component and air outlet.
A kind of preceding air purifier, screen modules include thick effect strainer, fine particle strainer, active carbon filtration
Net removes formaldehyde strainer, the thick effect strainer, fine particle strainer, active carbon filter screen and removes formaldehyde strainer along air inlet to outlet air
Mouth direction is set gradually.
A kind of preceding air purifier, thick strainer of imitating are provided with automatic cleaning apparatus close to the side of air inlet, institute
It includes pipeline, nozzle, the second water pump and sump to state automatic cleaning apparatus, and one end of the pipeline extends in water tank, another
End is located at the top of thick effect strainer side, and second water pump is arranged on pipeline, and the nozzle setting is located at thick effect in pipeline
End above strainer, for the nozzle towards thick effect strainer, the sump is located at the lower section of thick effect strainer, second water pump
It is electrically connected with the controller of air purifier.
A kind of preceding air purifier, the angle between nozzle and thick effect strainer is 45 °.
Beneficial effects of the present invention：
(1) present invention is provided with humidity sensor on shell of air purifier, can detect the humidity of room air, and
Controller is sent data to, when air is excessively moist, controller drives electric rotating machine, and desiccant wheel is driven to be rotated,
When processing region of the air by desiccant wheel, the vapor in air is dehumidified the moisture absorption medium on runner and is adsorbed, right
Air is dried；When room air is excessively dry, controller controls the first pump working, and the water in water tank is evacuated to spray
It at mouth, is sprayed by nozzle, forms water curtain, when air passes through water curtain, the humidity of air increases, and makes the wetness of room air
It is moderate, increase the comfort level of user；
(2) screen modules in the present invention include thick effect strainer, fine particle strainer, active carbon filter screen, except formaldehyde is filtered
Net, it is thick imitate strainer can the impurity larger to grain size in air be filtered, fine particle strainer is smaller to grain size in air
Impurity is filtered, and active carbon filter screen can adsorb the pernicious gas in air, while can also carry out deodorization to air, remove first
Aldehyde strainer can remove the formaldehyde in air, and purified air is made more to clean；
(3) present invention is provided with automatic cleaning apparatus at slightly effect strainer, water is evacuated to nozzle by the second water pump, to thick
It is sprayed, can be cleaned to slightly imitating strainer on effect strainer, to improve the filter effect of thick effect strainer.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of the nozzle of the present invention.
Fig. 3 enters eddy flow entrance structure schematic diagram for nozzle of the present invention.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.
A kind of air purifier is present embodiments provided, as shown in Figure 1, including shell 1, shell 1 includes air inlet 2, wind
Road 3 and air outlet 4 are provided with screen modules 5 in air duct 3, humidity sensor 6 are provided on shell 1, is provided in shell 1
Humidification mechanism and desiccant body；
Humidification mechanism includes water tank 7, water pipe 8, the first water pump 9 and nozzle 10, and water tank 7 is located at the lower section in air duct 3, water
One end of pipe 8 extends in water tank 7, and the other end is located at 7 top of water tank, and the first water pump 9 is arranged on water pipe 8, and nozzle 10 is set
It sets and is located at one end above water tank 7 in water pipe 8, nozzle 10 is located at the upper end in air duct 3；
Desiccant body includes desiccant wheel 11 and electric rotating machine 12, and desiccant wheel 11 is arranged in air duct 3, desiccant wheel 11
It is driven by electric rotating machine 12, humidity sensor 6, the first water pump 9 and electric rotating machine 12 are electrically connected with the controller of air purifier
It connects.
Wherein, between screen modules 5 and air inlet 2, humidification mechanism is located at screen modules 5 and goes out desiccant body
Between air port 4, when air passes through desiccant wheel 11, the moisture absorption medium on desiccant wheel 11 can carry out pre-dehumidified to air, keep away
Exempt from that air is excessively moist, influences the service life of active carbon filter screen 15.
Screen modules 5 in air purifier include thick effect strainer 13, fine particle strainer 14, active carbon filter screen 15,
Except formaldehyde strainer 16, it is thick imitate strainer 13, fine particle strainer 14, active carbon filter screen 15 and except formaldehyde strainer 16 along air inlet 2 to
4 direction of air outlet is set gradually.
The side of air inlet 2 is provided with automatic cleaning apparatus in slightly effect strainer 13, automatic cleaning apparatus includes pipeline
17, nozzle 18, the second water pump 19 and sump 20, one end of pipeline 17 extend in water tank 7, and the other end is located at thick effect strainer 13
The top of side, the second water pump 19 are arranged on pipeline 17, and the second water pump 19 is electrically connected with the controller of air purifier, nozzle
18 are arranged the end above thick effect strainer 13 in pipeline 17, and nozzle 18 is towards thick effect strainer 13, and nozzle 18 and thick effect are filtered
Angle between net 13 is 45 °, and sump 20 is located at the lower section of thick effect strainer 13, and the sewage after cleaning can enter sump 20,
Air purifier is discharged by sump 20.
Fig. 2, the nozzle 10) include nozzle body 101, the nozzle body 101 includes eddy flow entrance 102, convergent passage
103, mixed aerosol room 104) and jet exit 105, the mixed aerosol room 104) be to be arranged in nozzle body 101) internal ball
Shape inner cavity, the mixed aerosol room 104) in be provided with spherical shape boss 106, the eddy flow entrance 102) be arranged in nozzle body
101) bottom, the eddy flow entrance 102 are connected to by convergent passage 103 with mixed aerosol room 104, the nozzle body 101
Top is equipped with several jet exits 105, and the jet exit 105 is connected to mixed aerosol room 104 and the external world；The mixed aerosol room
104 size is more than the size of eddy flow entrance 102, and the size of the eddy flow entrance 102 is more than the size of convergent passage 103.
Water is introduced into eddy flow entrance 102, because the import opening of eddy flow entrance 102, volume is bigger, then enter
The primary quantity of water is bigger, into water later because of the interior design of eddy flow entrance, the eddy flow entrance 102 as shown in Figure 3
Inner wall be to convergent passage 103 restrain shrink, and be extended have spiral shape drainage splitter 199 entrance, the water of entrance
Enter more inward, more squeeze, and flow is logical with the further share split of plume shape inflow convergence of uniting under the action of splitter 199
Road 103, after convergent passage 103, a large amount of water just must pass through convergent passage with the further state accelerated that squeezes
103, the water come in this way become it is rapid very following water has come mixed aerosol room 104 quickly, drift along or through close spray chamber
Big more of 104 volumetric ratio water inlet entrance channel 212 at the beginning, have so open-minded big space, water just to have including the space to let out
Convolution is pressed and hits, most rapid stream can also be hit with spherical shape boss 106 forms water mist, the water of remaining aerial drainage to edge
Along inner wall convolution lateral impact spherical shape boss 106 again, a large amount of water mists are formed, after water mist is formed, due to this inner space
It is limited, subsequent water also or else break enter, just must be spouting from spray orifice, the water ejected be water mist type droplet and
Flow, the water mist ejected are better.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (7)
1. a kind of air purifier, including shell (1), the shell (1) includes air inlet (2), air duct (3) and air outlet (4),
It is provided with screen modules (5) in the air duct (3), it is characterised in that：It is provided with humidity sensor (6) on the shell (1),
It is provided with humidification mechanism and desiccant body in the shell (1)；
The humidification mechanism includes water tank (7), water pipe (8), the first water pump (9) and nozzle (10), and described water pipe (8) one end is stretched
In to water tank (7), the other end is located above water tank (7), and first water pump (9) is arranged on water pipe (8), the nozzle
(10) it is arranged and is located at one end above water tank (7) in water pipe (8), the water tank (7) is located at the lower section in air duct (3), described
Nozzle (10) is located at the upper end in air duct (3)；
The desiccant body includes desiccant wheel (11) and electric rotating machine (12), and the desiccant wheel (11) is arranged in air duct (3)
Interior, the desiccant wheel (11) is driven by electric rotating machine (12), the humidity sensor (6), the first water pump (9) and electric rotating machine
(12) it is electrically connected with the controller of air purifier.
2. a kind of air purifier according to claim 1, it is characterised in that：The desiccant body is located at screen modules
(5) between air inlet (2), the humidification mechanism is located between screen modules (5) and air outlet (4).
3. a kind of air purifier according to claim 1, it is characterised in that：The screen modules (5) include thick effect
Strainer (13), active carbon filter screen (15), removes formaldehyde strainer (16), the thick effect strainer (13), thin at fine particle strainer (14)
Grain object strainer (14), active carbon filter screen (15) and except formaldehyde strainer (16) is set along air inlet (2) to air outlet (4) direction successively
It sets.
4. wanting a kind of air purifier described in 3 according to right, it is characterised in that：The thick effect strainer (13) is close to air inlet
(2) side is provided with automatic cleaning apparatus, and the automatic cleaning apparatus includes pipeline (17), nozzle (18), the second water pump
(19) it is extended in water tank (7) with sump (20), one end of the pipeline (17), it is close that the other end is located at thick effect strainer (13)
The top of the side of air inlet (2), second water pump (19) are arranged on pipeline (17), and the nozzle (18) is arranged in pipeline
(17) it is located at the end above thick effect strainer (13), the thick effect strainer (13) of nozzle (18) direction, sump (20) position
In the lower section of slightly effect strainer (13), second water pump (19) is electrically connected with the controller of air purifier.
5. a kind of air purifier according to claim 4, it is characterised in that：The nozzle (18) and thick effect strainer (13)
Between angle be 45 °.
6. a kind of air purifier according to claim 1, it is characterised in that：The nozzle (10) includes nozzle body
(101), the nozzle body (101) includes eddy flow entrance (102), convergent passage (103), mixed aerosol room (104) and ejects
Mouth (105), the mixed aerosol room (104) are the setting spherical inner chamber internal in nozzle body (101), the mixed aerosol room
(104) it is provided with spherical shape boss (106) in, eddy flow entrance (102) setting is described in the bottom of nozzle body (101)
Eddy flow entrance (102) is connected to by convergent passage (103) with mixed aerosol room (104), and the top of the nozzle body (101) is equipped with
Several jet exits (105), jet exit (105) connection mixed aerosol room (104) and the external world；The mixed aerosol room
(104) size is more than the size of eddy flow entrance (102), and the size of the eddy flow entrance (102) is more than convergent passage (103)
Size.
7. a kind of air purifier according to claim 1, it is characterised in that：The inner wall of the eddy flow entrance (102) is
It restrains and shrinks to convergent passage (103), and be extended the entrance for thering is spiral shape to drain splitter (199).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116281.5A CN108443975A (en) | 2018-02-06 | 2018-02-06 | A kind of air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116281.5A CN108443975A (en) | 2018-02-06 | 2018-02-06 | A kind of air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443975A true CN108443975A (en) | 2018-08-24 |
Family
ID=63191942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116281.5A Withdrawn CN108443975A (en) | 2018-02-06 | 2018-02-06 | A kind of air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443975A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556204A (en) * | 2018-11-27 | 2019-04-02 | 贵州工程应用技术学院 | A kind of air cleaning unit |
| CN110665314A (en) * | 2019-09-24 | 2020-01-10 | 梁金超 | Antibiotic formaldehyde that removes peculiar smell airstrainer equipment |
| CN111558261A (en) * | 2020-05-26 | 2020-08-21 | 徐立军 | Energy-saving environment-friendly air purification device for building engineering construction and purification method thereof |
| CN112432285A (en) * | 2019-08-26 | 2021-03-02 | 新疆金风科技股份有限公司 | Ventilation and dehumidification integrated machine, ventilation and dehumidification method and wind generating set |
| WO2022120804A1 (en) * | 2020-12-11 | 2022-06-16 | 王维纲 | Filtering device for air purifier |
| CN116558003A (en) * | 2023-05-16 | 2023-08-08 | 绍兴上虞通风机有限公司 | Adjustable mine ventilator |
-
2018
- 2018-02-06 CN CN201810116281.5A patent/CN108443975A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556204A (en) * | 2018-11-27 | 2019-04-02 | 贵州工程应用技术学院 | A kind of air cleaning unit |
| CN112432285A (en) * | 2019-08-26 | 2021-03-02 | 新疆金风科技股份有限公司 | Ventilation and dehumidification integrated machine, ventilation and dehumidification method and wind generating set |
| CN110665314A (en) * | 2019-09-24 | 2020-01-10 | 梁金超 | Antibiotic formaldehyde that removes peculiar smell airstrainer equipment |
| CN111558261A (en) * | 2020-05-26 | 2020-08-21 | 徐立军 | Energy-saving environment-friendly air purification device for building engineering construction and purification method thereof |
| WO2022120804A1 (en) * | 2020-12-11 | 2022-06-16 | 王维纲 | Filtering device for air purifier |
| CN116558003A (en) * | 2023-05-16 | 2023-08-08 | 绍兴上虞通风机有限公司 | Adjustable mine ventilator |
| CN116558003B (en) * | 2023-05-16 | 2023-10-13 | 绍兴上虞通风机有限公司 | Adjustable mine ventilator |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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| WW01 | Invention patent application withdrawn after publication |