CN107158814A - The method and air purifier of a kind of strainer filtering efficient state prompting - Google Patents
The method and air purifier of a kind of strainer filtering efficient state prompting Download PDFInfo
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- CN107158814A CN107158814A CN201710343503.2A CN201710343503A CN107158814A CN 107158814 A CN107158814 A CN 107158814A CN 201710343503 A CN201710343503 A CN 201710343503A CN 107158814 A CN107158814 A CN 107158814A
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- pollutant concentration
- comparative result
- strainer filtering
- purification efficiency
- filter screen
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- 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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a kind of method of strainer filtering efficient state prompting, including：Detect the pollutant concentration of filter screen air intake and the pollutant concentration of filter screen outlet air end；The purification efficiency value of filter screen is calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end；The purification efficiency value is compared with predetermined threshold value, comparative result is determined；According to the comparative result, strainer filtering condition prompting information is exported.The invention also discloses a kind of air purifier.
Description
Technical field
The present invention relates to air purifying process, more particularly to the method and air of a kind of prompting of strainer filtering efficient state are net
Change device.
Background technology
Air purifier is a kind of device for crossing air filtering, and the pollutant filtered out can be attached to the filtering of air purifier
In module, with the growth of air purifier use time, the filter efficiency of air purifier will be reduced, so, air is net
Changing the filtering module of device needs regularly to clean or change.
In the prior art, it is typically all to be carried out by the way of accumulative use time that the cleaning or replacing of filtering module, which are reminded,
Remind, user's cleaning is reminded when accumulative use time reaches setting value or filtering module is changed, still, during using accumulative using
Between mode remind cleaning or change filtering module mode can not really reflect whether filtering module needs to clean or change,
For example：The use environment of one air purifier is relatively preferable, and pollutant is relatively low, in this case, air cleaning
Device use time, which reaches, will send prompt message that is clear or changing after the default time, and actually accompanying by filtering module
Pollutant seldom, the purification efficiency of filtering module does not drop to the degree for needing to clean or change really also；If air
The environment that clarifier is used is hated bad, and filtering module is adhering to a large amount of pollutants.And use time is not reaching to default
Value, is continuing with the effect that air purifier does not purify air not only, the secondary of air can be caused on the contrary in this case
Pollution.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide method and the air cleaning of a kind of strainer filtering efficient state prompting
Device, the purification efficiency of air purifier can be detected in real time, and air purifier filter efficiency state can be shown in real time, when
The purification efficiency of air purifier does not reach after clean-up effect, and cleaning is issued the user with automatically or the prompting letter of filtering module is changed
Breath.
It is described the embodiments of the invention provide a kind of method of strainer filtering efficient state prompting to reach above-mentioned purpose
Method includes：
Detect the pollutant concentration of filter screen air intake and the pollutant concentration of filter screen outlet air end；
The purification efficiency of filter screen is calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end
Value；
The purification efficiency value is compared with predetermined threshold value, comparative result is determined；
According to the comparative result, strainer filtering condition prompting information is exported.
It is described to be calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end in the above method
The purification efficiency value of filter screen, including：
The pollutant concentration of the pollutant concentration of the air intake and the outlet air end is made into difference or is divided by, by difference or business
Value is defined as the purification efficiency value of filter screen.
It is described to be compared the purification efficiency value with predetermined threshold value in the above method, comparative result is determined, including：
When the purification efficiency value is less than predetermined threshold value, the low comparative result of strainer filtering efficiency is determined；
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined.
It is described according to the comparative result in the above method, strainer filtering condition prompting information is exported, including：
When the comparative result is the low comparative result of strainer filtering efficiency, the low prompting letter of output strainer filtering state
Breath；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state is normally pointed out
Information.
It is described to be calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end in the above method
The purification efficiency value of filter screen, including：
Within the default period, the data of the pollutant concentration of multigroup air intake and the pollutant concentration of outlet air end are obtained
Afterwards, the pollutant concentration of the air intake of each group of data and the pollutant concentration of outlet air end are made into difference successively or are divided by, determined each
The purification efficiency value of group data；
The average value of the purification efficiency value of each group of data is calculated, the purification of the average value calculated as filter screen is imitated
Rate value.
The embodiments of the invention provide a kind of air purifier, including：
Pollutant concentration detection module, for detecting the pollutant concentration of filter screen air intake and the pollutant of filter screen outlet air end
Concentration；
Computing module, filter is calculated for the pollutant concentration according to the air intake and the pollutant concentration of the outlet air end
The purification efficiency value of net；
Contrast module, for the purification efficiency value to be compared with predetermined threshold value, determines comparative result；
Reminding module, for according to the comparative result, exporting strainer filtering condition prompting information.
In above-mentioned air purifier, the computing module specifically for：By the pollutant concentration of the air intake with it is described
The pollutant concentration of outlet air end is made difference or is divided by, and difference or quotient are defined as to the purification efficiency value of filter screen.
In above-mentioned air purifier, the contrast module specifically for：When the purification efficiency value is less than predetermined threshold value,
Determine the low comparative result of strainer filtering efficiency；
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined.
In above-mentioned air purifier, the reminding module specifically for：
When the comparative result is the low comparative result of strainer filtering efficiency, the low prompting letter of output strainer filtering state
Breath；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state is normally pointed out
Information.
In above-mentioned air purifier, the computing module is additionally operable to：Within the default period, multigroup air intake is obtained
After the data of pollutant concentration and the pollutant concentration of outlet air end, the pollutant concentration of the air intake of each group of data and it will go out successively
The pollutant concentration at wind end is made difference or is divided by, and determines the purification efficiency value of each group of data；Calculate the purification of each group of data
The average value of efficiency value, using the average value calculated as filter screen purification efficiency value.
The method and air purifier of a kind of strainer filtering efficient state prompting provided in an embodiment of the present invention, detect filter screen
The pollutant concentration of air intake and the pollutant concentration of filter screen outlet air end；According to the pollutant concentration of the air intake and it is described go out
The pollutant concentration at wind end calculates the purification efficiency value of filter screen；The purification efficiency value is compared with predetermined threshold value, it is determined that
Go out comparative result；According to the comparative result, strainer filtering condition prompting information is exported.In this way, can effectively detect in real time
The purification efficiency of air purifier, after purification efficiency declines to a certain extent, issues the user with cleaning or changes filtering module
Prompt message.
Brief description of the drawings
Fig. 1 is the schematic flow sheet for the method that strainer filtering of embodiment of the present invention efficient state is pointed out；
Fig. 2 is the structural representation of air purifier of the embodiment of the present invention；
Fig. 3 is the structural representation of air purifier of the embodiment of the present invention in actual applications.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment to the present invention be described in further detail again.
Fig. 1 is the schematic flow sheet for the method that strainer filtering of embodiment of the present invention efficient state is pointed out, as shown in figure 1, this
The flow of the method for inventive embodiments strainer filtering efficient state prompting comprises the following steps：
Step 101：Detect the pollutant concentration of filter screen air intake and the pollutant concentration of filter screen outlet air end；
Wherein, using filter screen as boundary, direction windward is air intake, and air-out direction is outlet air end；It is each in air intake and outlet air end
At least one pollutant concentration detection module is set, wherein, the quantity of pollutant concentration detection module can be according to the actual requirements
It is configured；The period for measuring the pollutant concentration of filter screen air intake and the pollutant concentration of filter screen outlet air end can be according to reality
Border demand is configured, in 10 minutes in 20 minutes after such as start operation 10 minutes or after continuous operation 30 minutes；
The pollutant concentration detection module can be fine particle (PM2.5) detection sensor, concentration of formaldehyde detection biography
Sensor, VOC (VOC, Volatile Organic Compounds) detection sensor etc..
Step 102：Filter screen is calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end
Purification efficiency value；
Wherein, the air intake pollutant concentration and outlet air end pollutant concentration are made into difference or are divided by, determine filter screen
Purification efficiency value；
In actual applications, the purification efficiency value of the filter screen can be presented as percent value or difference, and such as 80% represents
In air 80% pollutant concentration can be purified, or difference 30 represents air cleaning amount, the percent value or difference are bigger,
Show that purification efficiency is higher.The default threshold value can be adjusted according to the air intake pollutant concentration, such as work as air intake
When end pollutant concentration is 200, the threshold value is set as 100, when air intake pollutant concentration is 100, by the threshold value
It is set as 50, by that analogy.
Step 103：The purification efficiency value is compared with predetermined threshold value, comparative result is determined；
Wherein, when the purification efficiency value is less than predetermined threshold value, the low comparative result of strainer filtering efficiency is determined；When
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined；
Further, the predetermined threshold value could be arranged to fixed numerical value, or dense according to the pollutant of the air intake
Degree sets at least one corresponding threshold value；
Wherein, the threshold of the pollutant concentration corresponding to the air intake is set according to the pollutant concentration of different air intakes
Value, wherein, the setting of the threshold value is reduced with the reduction of the pollutant concentration of air intake, or with air intake pollutant concentration
Raise and raise.
Step 104：According to the comparative result, strainer filtering condition prompting information is exported.
Wherein, when the comparative result is the low comparative result of strainer filtering efficiency, strainer filtering state is low carries for output
Show information；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state is normally pointed out
Information.
In actual applications, the low prompt message of the strainer filtering efficiency can pass through the display surface on air purifier
The modes such as plate is shown, indicator lamp flashes, the push of APP message remind user to clean or change filtering module.
Fig. 2 is the structural representation of air purifier of the embodiment of the present invention, as shown in Fig. 2 air of the embodiment of the present invention is net
Changing device includes：
Pollutant concentration detection module 201, for detecting the pollutant concentration of filter screen air intake and the dirt of filter screen outlet air end
Contaminate thing concentration；
Computing module 202, based on the pollutant concentration according to the air intake and the pollutant concentration of the outlet air end
Calculate the purification efficiency value of filter screen；
Contrast module 203, for the purification efficiency value to be compared with predetermined threshold value, determines comparative result；
Reminding module 204, for according to the comparative result, exporting strainer filtering condition prompting information；
Wherein, the computing module 202 specifically for：By the dirt of the pollutant concentration of the air intake and the outlet air end
Dye thing concentration is made difference or is divided by, and difference or quotient are defined as to the purification efficiency value of filter screen；
The contrast module 203 specifically for：
When the purification efficiency value is less than predetermined threshold value, the low comparative result of strainer filtering efficiency is determined；
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined.
The reminding module 204 specifically for：
When the comparative result is the low comparative result of strainer filtering efficiency, the low prompting letter of output strainer filtering state
Breath；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state is normally pointed out
Information.
The computing module 202 is additionally operable to：Within the default period, obtain the pollutant concentration of multigroup air intake and go out
It is successively that the pollutant of the pollutant concentration of the air intake of each group of data and outlet air end is dense after the data of the pollutant concentration at wind end
Degree is made difference or is divided by, and determines the purification efficiency value of each group of data；The average value of the purification efficiency value of each group of data is calculated,
Using the average value calculated as filter screen purification efficiency value.
In actual applications, the computing module 202, contrast module 203, reminding module 204 can be by positioned at air cleanings
Central processing unit (CPU, Central Processing Unit) or microprocessor (MPU, Micro Processor on device
Unit) or digital signal processor (DSP, Digital Signal Processor) or field programmable gate array (FPGA,
Field Programmable Gate Array) realize.
It should be noted that each module realizes that function can refer to the associated description of reminding method in earlier figures 1 and understand,
Here repeat no more.
The method and the structure of air purifier pointed out below strainer filtering of embodiment of the present invention efficient state are carried out
Describe in detail.
Fig. 3 is the structural representation for the method practical application that strainer filtering of embodiment of the present invention efficient state is pointed out, such as Fig. 3
Shown, the application of the embodiment of the present invention in practice includes：
Air intake pollutant concentration detection module 301, filter screen 302, outlet air end pollutant concentration detection module 303, calculating
Module 304, contrast module 305 and reminding module 306；Wherein,
After air purifier is started working, the He of pollutant concentration detection module 301 that air purifier air intake is set
Outlet air end pollutant concentration detection module 303 at least detects a data or multiple data within the default period, will obtain
Pollutant concentration data be sent to computing module 304, filter screen is calculated according to the pollutant concentration of air intake and outlet air end
Purification efficiency, contrast module 305 sets a threshold value or determined according to the pollutant concentration of air intake after a threshold value, by institute
State purification efficiency and the threshold value of the setting is contrasted, if purification efficiency is less than the default threshold value, show air intake
The pollutant at end is not intercepted effectively, filter screen can not effective filtering contaminants, now, reminding module 306 is sent clearly
Wash or change the signal of filter screen.
Strainer filtering efficient state of the embodiment of the present invention is carried by PM2.5 detection modules example of pollutant concentration detection module
The method shown is described in detail.
Assuming that the PM2.5 of air purifier reminds threshold value to be 35, detection time is set as 30 minutes, it is assumed that in air cleaning
In certain 30 minutes of device start operation, it is 150 that detection, which obtains air intake PM2.5 values, and the PM2.5 values of outlet air end are 120, and it is poor to calculate
It is worth and is：150-120=30, the difference 30 is less than default prompting threshold value 35, shows that the pollutant of air intake is not effective
Intercept, then send cleaning or change the prompt message of filter screen；In order to avoid false alert, multigroup air intake can be measured in 30 minutes
End and the pollutant concentration of outlet air end, carry out arithmetic mean, after arithmetic average by the difference for calculating the every group of data obtained
Difference as filter screen purification efficiency value；
Wherein, different air intake pollutant concentrations can set different prompting threshold values, for example：Air intake PM2.5 numerical value
During more than 150, threshold value will be reminded to be set to 50；When air intake PM2.5 numerical value is 70 to 150, threshold value will be reminded to be set to 35；
When air intake PM2.5 numerical value is less than 70, threshold value will be reminded to be set to 15.
In summary, the pollutant concentration of detection filter screen air intake and the pollutant concentration of filter screen outlet air end；According to described
The pollutant concentration of air intake and the pollutant concentration of the outlet air end calculate the purification efficiency value of filter screen；By the purification efficiency
Value is compared with predetermined threshold value, determines comparative result；According to the comparative result, output strainer filtering condition prompting letter
Breath.In this way, the purification efficiency of air purifier can be effectively detected and monitored in real time in air purifier running, when
Purification efficiency drops to after the state for needing to clean or changing, and sends cleaning or changes the prompt message of filtering module.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of method of strainer filtering efficient state prompting, it is characterised in that methods described includes：
Detect the pollutant concentration of filter screen air intake and the pollutant concentration of filter screen outlet air end；
The purification efficiency value of filter screen is calculated according to the pollutant concentration of the air intake and the pollutant concentration of the outlet air end；
The purification efficiency value is compared with predetermined threshold value, comparative result is determined；
According to the comparative result, strainer filtering condition prompting information is exported.
2. according to the method described in claim 1, it is characterised in that the pollutant concentration according to the air intake and described
The pollutant concentration of outlet air end calculates the purification efficiency value of filter screen, including：
The pollutant concentration of the pollutant concentration of the air intake and the outlet air end is made into difference or is divided by, difference or quotient is true
It is set to the purification efficiency value of filter screen.
3. according to the method described in claim 1, it is characterised in that described to be compared the purification efficiency value with predetermined threshold value
Compared with, comparative result is determined, including：
When the purification efficiency value is less than predetermined threshold value, the low comparative result of strainer filtering efficiency is determined；
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined.
4. the method according to claim 1 or 3, it is characterised in that described according to the comparative result, exports strainer filtering
Condition prompting information, including：
When the comparative result is the low comparative result of strainer filtering efficiency, the low prompt message of output strainer filtering state；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state normally points out letter
Breath.
5. method according to claim 1 or 2, it is characterised in that the pollutant concentration according to the air intake and
The pollutant concentration of the outlet air end calculates the purification efficiency value of filter screen, including：
Within the default period, after the data for obtaining the pollutant concentration of multigroup air intake and the pollutant concentration of outlet air end,
The pollutant concentration of the air intake of each group of data and the pollutant concentration of outlet air end are made into difference successively or are divided by, each group number is determined
According to purification efficiency value；
Calculate the average value of the purification efficiency value of each group of data, using the average value calculated as filter screen purification efficiency
Value.
6. a kind of air purifier, it is characterised in that the air purifier includes：
Pollutant concentration detection module, for detect filter screen air intake pollutant concentration and filter screen outlet air end pollutant it is dense
Degree；
Computing module, filter screen is calculated for the pollutant concentration according to the air intake and the pollutant concentration of the outlet air end
Purification efficiency value；
Contrast module, for the purification efficiency value to be compared with predetermined threshold value, determines comparative result；
Reminding module, for according to the comparative result, exporting strainer filtering condition prompting information.
7. air purifier according to claim 6, it is characterised in that the computing module specifically for：By it is described enter
The pollutant concentration at wind end and the pollutant concentration of the outlet air end are made difference or are divided by, and difference or quotient are defined as into the net of filter screen
Change efficiency value.
8. air purifier according to claim 6, it is characterised in that the contrast module specifically for：
When the purification efficiency value is less than predetermined threshold value, the low comparative result of strainer filtering efficiency is determined；
When the purification efficiency value is more than or equal to predetermined threshold value, the normal comparative result of strainer filtering efficiency is determined.
9. air purifier according to claim 8, it is characterised in that the reminding module specifically for：
When the comparative result is the low comparative result of strainer filtering efficiency, the low prompt message of output strainer filtering state；
When the comparative result is the normal comparative result of strainer filtering efficiency, output strainer filtering state normally points out letter
Breath.
10. the air purifier according to claim any one of 6-9, it is characterised in that the computing module is additionally operable to：
In the default period, after the data for obtaining the pollutant concentration of multigroup air intake and the pollutant concentration of outlet air end, successively will
The pollutant concentration of the air intake of each group of data and the pollutant concentration of outlet air end are made difference or are divided by, and determine the net of each group of data
Change efficiency value；
Calculate the average value of the purification efficiency value of each group of data, using the average value calculated as filter screen purification efficiency
Value.
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Cited By (15)
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| CN108204654A (en) * | 2017-12-27 | 2018-06-26 | 青岛海信日立空调系统有限公司 | A kind of air processor and its control method |
| CN108224554A (en) * | 2017-12-27 | 2018-06-29 | 青岛海信日立空调系统有限公司 | A kind of air processor and its control method |
| CN108413493A (en) * | 2018-03-08 | 2018-08-17 | 广东美的制冷设备有限公司 | Purification membrane replaces based reminding method, air conditioner, mobile terminal, system and medium |
| CN108800433A (en) * | 2018-04-24 | 2018-11-13 | 青岛朗兹环保科技有限公司 | New blower fan screen net life detecting method |
| CN109489203A (en) * | 2018-11-13 | 2019-03-19 | 科希曼电器有限公司 | A kind of intelligent air condition management method and device based on air quality monitoring |
| CN110195911A (en) * | 2018-02-27 | 2019-09-03 | 上海熙鼎信息科技有限公司 | Judgment method that air purifier and strainer expire determination component and air purifier strainer expires |
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| CN111023442A (en) * | 2019-11-05 | 2020-04-17 | 南京大学 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
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|---|---|---|---|---|
| CN108204654A (en) * | 2017-12-27 | 2018-06-26 | 青岛海信日立空调系统有限公司 | A kind of air processor and its control method |
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| CN110195911A (en) * | 2018-02-27 | 2019-09-03 | 上海熙鼎信息科技有限公司 | Judgment method that air purifier and strainer expire determination component and air purifier strainer expires |
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| CN108800433A (en) * | 2018-04-24 | 2018-11-13 | 青岛朗兹环保科技有限公司 | New blower fan screen net life detecting method |
| CN109489203A (en) * | 2018-11-13 | 2019-03-19 | 科希曼电器有限公司 | A kind of intelligent air condition management method and device based on air quality monitoring |
| WO2020134438A1 (en) * | 2018-12-24 | 2020-07-02 | 广东美的制冷设备有限公司 | Filter element life monitoring method and device and air purifying equipment |
| CN110529976A (en) * | 2019-08-22 | 2019-12-03 | 深圳和而泰家居在线网络科技有限公司 | Air cleaning facility filter screen life detecting method, device, system and equipment |
| WO2021082372A1 (en) * | 2019-10-28 | 2021-05-06 | 南京长三角绿色发展研究院有限公司 | Purification efficiency risk identification and filter screen reset reminding system and method for air purification device |
| CN111023442A (en) * | 2019-11-05 | 2020-04-17 | 南京大学 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
| CN111649400A (en) * | 2020-05-12 | 2020-09-11 | 宁波奥克斯电气股份有限公司 | Control method and device of air purification assembly and air conditioner |
| CN111701523A (en) * | 2020-06-28 | 2020-09-25 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN111701523B (en) * | 2020-06-28 | 2022-06-14 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN112728720A (en) * | 2021-01-17 | 2021-04-30 | 夏周 | Replacement control method for filter screen of air purifier |
| CN113029913A (en) * | 2021-04-12 | 2021-06-25 | 常熟迈得医疗器械技术服务有限公司 | Particulate matter filtering efficiency testing device and using method thereof |
| CN117091251A (en) * | 2023-08-21 | 2023-11-21 | 安徽中科新源半导体科技有限公司 | Environment monitoring integrated fresh air system |
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