CN110732201A - Air supply device - Google Patents
Air supply device Download PDFInfo
- Publication number
- CN110732201A CN110732201A CN201910537557.1A CN201910537557A CN110732201A CN 110732201 A CN110732201 A CN 110732201A CN 201910537557 A CN201910537557 A CN 201910537557A CN 110732201 A CN110732201 A CN 110732201A
- Authority
- CN
- China
- Prior art keywords
- filter
- air
- filters
- dust
- air blowing
- 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.)
- Pending
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Classifications
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0006—Filter elements or cartridges installed in a drawer-like manner
-
- 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
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
- B01D46/0054—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with translational movement
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
Abstract
The invention relates to air blowing devices, which aims to prolong the service life of filters of the air blowing devices, and the solving means of the invention is air blowing devices, which is characterized by comprising a control unit for selecting the filters of the air blowing devices, a filter storage unit for storing more than three filters, wherein the particle sizes of dust collected by the more than three filters are different, an air blowing unit for arranging a plurality of filters selected by the control unit from the filter storage unit on an air blowing path of the air blowing unit, and a dust sensor for acquiring dust information in the surrounding atmosphere, wherein the control unit selects the filters based on the dust information.
Description
Technical Field
The invention relates to a blowing device for blowing clean air.
Background
Some air blowing devices that suck air and blow the air blow clean air by disposing a filter in an air blowing path and removing dust. For example, patent document 1 describes an air cleaner having a filter for collecting dust of 3 μm or more.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open No. 11-9922.
Disclosure of Invention
If the collection of dust is dealt with by filters, filters capture all dust having a specific particle diameter or more, and therefore there is a problem that the filter life is shortened.
The invention aims to provide air blowing devices with prolonged service life of filters, and further aims to provide an air blowing device with stable air volume.
The invention provides air blowing devices, which are characterized by comprising a control unit for selecting a filter of the air blowing device, a filter storage unit for storing three or more filters, wherein the three or more filters have different particle sizes of dust collected by the three or more filters, an air blowing unit for arranging a plurality of filters selected by the control unit from the filter storage unit on an air blowing path of the air blowing unit, and a dust sensor for acquiring dust information in the surrounding atmosphere, wherein the control unit selects the plurality of filters based on the dust information.
According to the blower device of the present invention, it is possible to provide a blower device with a stable air volume while prolonging the life of the filter as compared with conventional filters.
Drawings
Fig. 1 is a diagram showing an outline of an air blowing device of the present invention;
FIG. 2 is a block diagram of the electrical circuitry of the air delivery device of the present invention;
fig. 3 is a flowchart showing an operation of a control unit of the air blowing device of the present invention;
fig. 4 is a diagram showing a corresponding example of the particle size distribution of the dust with respect to the air blowing device of the present invention.
Detailed Description
Hereinafter, the blowing devices of the embodiments of the present invention will be described.
Fig. 1 is a diagram showing an outline of an air blowing device 1 of the present invention. The air blowing device 1 includes an air blowing unit 10 and a filter storage unit 20. Preferably, the blower 10 is disposed adjacent to the filter storage 20.
The blower 10 is a block constituting an air path, and includes an air inlet 11 for sucking air, a fan 12 for blowing air, and an air outlet 13 for discharging air, and a plurality of filters are disposed between the fan 12 and the air outlet 13. The filter will be described later. The side surface of the air blowing part 10 from the air inlet 11 to the air outlet 13 is covered with the side surface of the exterior casing or the plurality of filters, and the air taken in from the air inlet 11 is not discharged from a place other than the air outlet 13.
The filter storage unit 20 is a block for storing filters, and stores at least three filters. As described later, the reason for storing at least three filters is that at least three filters must be stored in order to switch the filter characteristics by selecting a plurality of filters and changing the combination thereof. That is, by storing at least three filters, the air blowing device according to the object of the present invention can be provided. In fig. 1, five filters, which store the filter 21, the filter 22, the filter 23, the filter 24, and the filter 25, are exemplified.
The filters 21 to 25 stored in the filter storage unit 20 are moved to the air blowing unit 10 by a mechanism not shown, and are disposed between the fan 12 and the air blowing port 13. In fig. 1, as an example, a filter 22 and a filter 24 are disposed in the blower 10. The number of filters disposed in the blower 10 may be any number of two or more. For example, all of the filters 21 to 25 may be disposed.
The filters 21 to 25 are formed with a large number of holes (hereinafter referred to as meshes) having a predetermined size, and are configured so that dust having a particle diameter larger than the meshes cannot pass therethrough. The filters 21-25 are arranged in series with respect to the air blowing path in the air blowing unit 10. Therefore, when the filters 22 and 24 are arranged as shown in fig. 1, the air blow passes through the filter 22 first and then passes through the filter 24.
Here, the filters 21 to 25 are arranged in order from the filter 21 to the filter 25 so that the mesh of the filter becomes finer, for example. Therefore, when the plurality of filters are disposed in the air blowing unit 10, the dust having a large particle size is sequentially collected from the air blowing path.
Fig. 2 shows a block diagram of an electric circuit of the air blowing device 1. The electric circuit of the air blower 1 includes an air velocity sensor 31 for measuring the air velocity, a dust sensor 32 for measuring the dust distribution in the ambient atmosphere, a control unit 33 for controlling the air blower 1, a filter mechanism unit 34 as a mechanism for moving the filters 21 to 25, and a motor 35 for rotating the fan 12.
The wind speed sensor 31 measures the wind speed at the supply outlet 13. The wind speed sensor 31 measures the wind speed by measuring the amount of heat carried away by the flow velocity of wind using an element capable of measuring a temperature change such as a thermistor, for example. The measured wind speed is converted into a digital signal and supplied to the control section 33. The control unit 33 calculates the amount of air delivered per minute from the wind speed and the cross-sectional area of the air outlet 13 to obtain the air volume (L/min).
The dust sensor 32 measures dust in the atmosphere near the suction port 11. The dust sensor 32 causes air to flow into a pipe, not shown, for example, and irradiates light into the pipe to cause random reflection, measures the amount of dust from the amount of the random reflection, and measures the particle diameter from the amount of the random reflection. The measured amount and particle diameter of the dust are converted into digital signals and supplied to the control section 33.
The control unit 33 is, for example, a computer, and causes the CPU to operate a control program to control the air blowing device 1, the control unit 33 supplies the -th control signal to the filter mechanism unit 34, and supplies the second control signal to the motor 35.
The filter mechanism unit 34 includes a driving means such as a motor, a sensor for measuring the position of the filter, and the like, and moves the filter in the filter storage unit 20 to the air blowing unit 10 in accordance with an -th control signal from the control unit 33, or conversely returns the filter in the air blowing unit 10 to the filter storage unit 20.
Motor 35 is a motor for rotating fan 12, and changes the number of rotations of the motor and changes the air volume of blower 10 in accordance with a second control signal from controller 33.
The operation of the control unit 33 will be described with reference to the flowchart of fig. 3.
If the control unit 33 starts operation in step 1 according to an ON signal from the outside of the air blower (not shown), the control unit 33 acquires dust information from the dust sensor 32 in step 2, acquires information ON the distribution of the particle size and quantity of dust from the dust sensor 32, then, in step 3, as will be described later, calculates which filter has the largest life when the filter is used based ON the dust information, and, according to the calculation result, the control unit 33 selects two or more filters from among the filters in the filter storage unit 20, in step 4, the control unit 33 supplies the -th control signal to the filter mechanism unit 34, and the filter mechanism unit 34 moves the selected filter from the filter storage unit 20 to the air blower unit 10, in the case where there is a filter that is not selected by the control unit 33 in the air blower unit 10, moves the filter storage unit 10 to the filter storage unit 20, in step 5, the control unit 33 supplies the second control signal to the motor 35 to rotate the motor, acquires air speed information from the air speed sensor 31, and in the case where there is a filter storage unit 13, in the step 5, the control unit 13 turns OFF the control unit 35, and determines whether there is an air flow rate signal from the air blower unit 13, and if there is an air flow rate signal, in step 7, and if there is an air flow rate signal is not, and if there is an air flow rate signal from the air flow rate sensor 13, and if it is a flow rate sensor 13, and if it is OFF, and if it is not in step 3, and if it is a flow rate is not a flow rate signal, and if it is a.
Here, the case of "no" in step 7 will be described, in this case, dust information different from the previous one is acquired in step 2, and as a result, when a filter different from the previous one is selected in step 3, the control unit 33 stops the rotation of the motor 35 by the second control signal, then, after the newly selected filter is arranged in step 4, the motor 35 is rotated again by the second control signal in step 5, and in addition , when the same filter as the previous one is selected in step 3, the motor 35 is not stopped, no operation is performed in step 4, and step 5 is performed, and as described above, the air blowing device 1 selects the most appropriate filter whose life is maximized as needed, based on the dust information supplied from the dust sensor 32, and blows good air.
If the number of filters is increased, the resistance to the air supply is increased accordingly. As a result, the air volume decreases, and therefore the control unit 33 increases the rotation speed of the motor 35 by the second control signal. In addition, even if the number of filters is the same, the rotation number of the motor 35 is increased because the air resistance is higher as the mesh of the filter is finer.
Here, an embodiment in which the filter is selected based on the information of the dust sensor 32 will be described with reference to fig. 4.
Fig. 4 is an example of dust information supplied to the control section 33 by the dust sensor 32. The horizontal axis represents the particle size expressed in logarithmic scale, and the unit is μm. The vertical axis represents the amount of dust expressed in logarithmic scale in the unit of 1/m3。
Now, it is assumed that the mesh size of the filter 21 is 5.0 μm and corresponds to the scale 210 of fig. 4. Also, it is assumed that the size of the mesh of the filter 22 is 2.0 μm and corresponds to the scale 220, the size of the mesh of the filter 23 is 1.0 μm and corresponds to the scale 230, the size of the mesh of the filter 24 is 0.5 μm and corresponds to the scale 240, the size of the mesh of the filter 25 is 0.2 μm and corresponds to the scale 250.
Here, if 10 or less per cubic meter of dust is regarded as clean, it is sufficient to select the filter 24 of the scale 240. Then, a case where only the filter 24 is selected is considered. At this time, since dust larger than the scale 240, that is, dust larger than 0.5 μm cannot pass through the filter 24, all the dust in the curved regions 241 and 221 are collected by the filter 24. If so, an excessive load is applied to the filter 24, and the life of the filter 24 is shortened. In general, the filter is more expensive as the mesh size becomes finer, and it is desirable to prolong the life of the filter 24 as much as possible.
Thus, if the filter 22 corresponding to the scale 220 is selected as another filters using the case having two dust peaks, the filter 22 collects dust of the area 221, and therefore the life of the filter 24 can be extended accordingly and the replacement cost can be reduced.
Generally, as the number of filters increases, the life of each filter is extended. However, if the number of filters is increased, the resistance to the air blowing is increased accordingly, and therefore, even if the number of revolutions of the motor 35 is increased to the maximum, there is a possibility that the required air volume cannot be secured. Therefore, it is necessary to select an optimum number of filters or combinations according to the situation of dust. In addition, as dust is collected, the mesh of the filter is clogged, and the air blowing resistance of each filter is increased. That is, the use history of each filter also affects the characteristics of the air supply. The control unit 33 selects an optimum filter while taking such usage history information into consideration.
The control unit 33 is configured by a computer, but may be configured by a hardware circuit. Further, a configuration may be made in which hardware and software are appropriately combined.
The air blowing device of the present invention is suitable for use in an optical device, for example. For example, if the optical member is used for heat removal of an image display device such as a projector, it is possible to prevent a failure when the optical member is used in a place where dust is present. However, the air blowing device of the present invention can be applied to various devices requiring removal of dust, and is not limited to this application example.
Description of the symbols
1 … air supply device
10 … air supply part
11 … suction inlet
12 … fan
13 … air supply outlet
20 … Filter storage Unit
21-25 … filter
31 … wind speed sensor
32 … dust sensor
33 … control part
34 … Filter mechanism part
35 … Motor
Claims (4)
1, air supply arrangement, characterized by, includes:
a control unit for selecting a filter of the air blowing device;
a filter storage unit that stores three or more filters that collect dust having different particle diameters;
an air blowing unit in which a plurality of filters selected by the control unit from the filter storage unit are arranged on an air blowing path; and
a dust sensor for acquiring dust information in the surrounding atmosphere,
the control unit selects the plurality of filters based on the dust information.
2. The air supply arrangement according to claim 1,
the air supply part is also provided with an air supply fan and an air speed sensor,
the control unit controls the amount of air blown by the air blowing fan based on the air speed information from the air speed sensor.
3. The air supply apparatus according to claim 1 or 2,
when a plurality of the filters are selected, the control unit selects the filter so as to maximize the life of the filter.
4. The air supply arrangement according to claim 3,
when a plurality of the filters are selected, the control section takes into account the usage history of each filter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-135733 | 2018-07-19 | ||
| JP2018135733A JP7091906B2 (en) | 2018-07-19 | 2018-07-19 | Blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110732201A true CN110732201A (en) | 2020-01-31 |
Family
ID=69170509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910537557.1A Pending CN110732201A (en) | 2018-07-19 | 2019-06-20 | Air supply device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7091906B2 (en) |
| CN (1) | CN110732201A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7450188B2 (en) | 2019-06-28 | 2024-03-15 | パナソニックＩｐマネジメント株式会社 | input device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510353A (en) * | 2002-12-23 | 2004-07-07 | ���ǵ�����ʽ���� | Air purifier |
| CN102410586A (en) * | 2011-12-09 | 2012-04-11 | 江苏瑞丰科技实业有限公司 | Purification treatment device for PM2.5-level dust collecting and carried bacterium killing |
| CN202460313U (en) * | 2012-03-21 | 2012-10-03 | 黄成辉 | Air purification device with intelligent detection and selective filtration functions |
| CN103743006A (en) * | 2013-12-16 | 2014-04-23 | 北京工业大学 | Efficient energy-saving air purifying device capable of removing fine particulate matter |
| CN203718963U (en) * | 2014-03-07 | 2014-07-16 | 北京一点蓝科技有限公司 | Air purifier |
| CN104226027A (en) * | 2014-08-12 | 2014-12-24 | 浙江朝晖过滤技术股份有限公司 | Insertion board type air purifier |
| CN105749643A (en) * | 2016-04-25 | 2016-07-13 | 广东美的暖通设备有限公司 | Filter and air treatment equipment with same |
| CN106178705A (en) * | 2014-08-29 | 2016-12-07 | 日立空调·家用电器株式会社 | Air purifier |
| CN106975279A (en) * | 2017-05-02 | 2017-07-25 | 青岛大学 | A kind of bullet train air cleaning unit, system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58216A (en) * | 1981-06-26 | 1983-01-05 | Fuji Electric Co Ltd | Air velocity controlling system for air cleaner |
| JPH06296815A (en) * | 1993-04-16 | 1994-10-25 | Toshio Awaji | Fine particulate dust treatment method and device of semiconductor element manufacturing process |
| JP4860079B2 (en) | 2001-09-28 | 2012-01-25 | 高砂熱学工業株式会社 | Filter unit device |
| KR101195218B1 (en) | 2011-04-22 | 2012-10-29 | 김동기 | Air conditioner having auto-changing sliding filter |
| JP2013104421A (en) | 2011-11-11 | 2013-05-30 | Shinwa Corp | Intake filter unit for gas turbine |
| ES2907124T3 (en) | 2014-12-18 | 2022-04-22 | Koninklijke Philips Nv | An air purifying filter system, an air purifier and a method of controlling an air purifier |
-
2018
- 2018-07-19 JP JP2018135733A patent/JP7091906B2/en active Active
-
2019
- 2019-06-20 CN CN201910537557.1A patent/CN110732201A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510353A (en) * | 2002-12-23 | 2004-07-07 | ���ǵ�����ʽ���� | Air purifier |
| CN102410586A (en) * | 2011-12-09 | 2012-04-11 | 江苏瑞丰科技实业有限公司 | Purification treatment device for PM2.5-level dust collecting and carried bacterium killing |
| CN202460313U (en) * | 2012-03-21 | 2012-10-03 | 黄成辉 | Air purification device with intelligent detection and selective filtration functions |
| CN103743006A (en) * | 2013-12-16 | 2014-04-23 | 北京工业大学 | Efficient energy-saving air purifying device capable of removing fine particulate matter |
| CN203718963U (en) * | 2014-03-07 | 2014-07-16 | 北京一点蓝科技有限公司 | Air purifier |
| CN104226027A (en) * | 2014-08-12 | 2014-12-24 | 浙江朝晖过滤技术股份有限公司 | Insertion board type air purifier |
| CN106178705A (en) * | 2014-08-29 | 2016-12-07 | 日立空调·家用电器株式会社 | Air purifier |
| CN105749643A (en) * | 2016-04-25 | 2016-07-13 | 广东美的暖通设备有限公司 | Filter and air treatment equipment with same |
| CN106975279A (en) * | 2017-05-02 | 2017-07-25 | 青岛大学 | A kind of bullet train air cleaning unit, system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020012425A (en) | 2020-01-23 |
| JP7091906B2 (en) | 2022-06-28 |
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