CN111023442A - Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method - Google Patents
Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method Download PDFInfo
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- CN111023442A CN111023442A CN201911069899.1A CN201911069899A CN111023442A CN 111023442 A CN111023442 A CN 111023442A CN 201911069899 A CN201911069899 A CN 201911069899A CN 111023442 A CN111023442 A CN 111023442A
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- 238000004887 air purification Methods 0.000 title claims abstract description 40
- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 73
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 42
- 238000004140 cleaning Methods 0.000 claims description 14
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/66—Volatile organic compounds [VOC]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/74—Ozone
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Physics & Mathematics (AREA)
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Abstract
The invention provides a system and a method for risk identification and filter screen reset reminding of purification efficiency of air purification equipment, wherein the system comprises an air inlet, an air filter screen and an air outlet, and further comprises a concentration detection unit, a wind speed detection unit, a storage unit, a comparison unit and a reminding unit; the concentration detection unit and the wind speed detection unit are both arranged at the air outlet, the concentration detection unit is in signal connection with the comparison unit, and one end of the wind speed detection unit is in signal connection with the storage unit; one end of the wind speed detection unit is also in signal connection with the comparison unit; the other end of the storage unit is in signal connection with the comparison unit; the other end of the comparison unit is in signal connection with the reminding unit. In the detection process, calculation is not needed, so that the confidence acquisition degree of the detection result is improved; different warning modes are provided for different filter screens, the service life of the medium filtering type filter screen can be detected through wind speed change, the service life of a gas filter screen or an electrostatic dust removal filter screen can also be detected through concentration change, and the device is simple in structure and accurate in judgment.
Description
Technical Field
The invention relates to the technical field of air purification equipment, in particular to a risk identification and filter screen resetting reminding system and method for purification efficiency of air purification equipment.
Background
Air purifier, new trend system or other air purification equipment's core function part are airstrainer, airstrainer along with the live time extension in the use, and pollutant in the air can accumulate gradually on the filter screen and lead to the filter screen function to weaken. When pollutants pile up to certain degree in the filter screen, the air purification function of filter screen will become invalid completely, if change in time not this moment, the pollutant on the filter screen can get into the surrounding environment along with the air flow even, makes the filter screen itself become serious pollution source, brings extremely serious potential safety hazard for the user.
At present, the common replacement reminding system adopts the following countdown modes. Firstly, when a terminal is started for the first time, a countdown is automatically started, whether the terminal is started or not at the later stage of a user is not considered in the timing mode, and the countdown is calculated only according to natural days until the system preset time is reached to remind replacement; secondly, the user is reminded to replace the system when the system reaches the preset accumulated time according to the accumulated time of the user. Because the air purification product service environment is different, the amount of wind that the use was moved is also different, and the filter screen polluted degree is all the same in the different environment of same time quantum, adopts the timing to have been far away can not satisfy present user's demand. Moreover, the purification equipment adopting the catalytic decomposition or electrostatic principle may be completely poisoned and failed when the environmental humidity or temperature is changed drastically, and the timing method cannot be used for timing reminding.
Chinese patent No. CN 110030661a discloses a filter screen replacement reminding method, which adopts a blower to blow back a filter screen to determine the using condition of the filter screen, thereby solving the drawbacks of timing manner, but the blowback filter screen has data feedback only when the filter screen reaches a high pollution degree, and the blower needs to change the forward and reverse directions during use, which is not convenient for daily popularization and application; chinese patent No. CN 110314458A discloses a filter screen replacement reminding system, which increases real-time detection of air inlet and outlet concentration of air purification equipment, but has many disadvantages in the algorithm, firstly, the air inlet and outlet concentration of the air purification equipment is constantly changed when the air purification equipment is used, the difficulty of calculating data and acquiring information is high, secondly, the air outlet speed of the air purification equipment is not uniform when the air purification equipment works, and the design of an air volume sensor is difficult to realize in an actual product; chinese patent No. CN 209068682U discloses a filter screen replacement alarm device, which mainly adopts a wind speed sensor and a pressure sensor differential pressure comparison mode to alarm and remind, and is effective for general nonwoven fabric filter screens, but ineffective for gas filter screens and electrostatic dust removal filter screens with small pressure difference or wind speed change.
Disclosure of Invention
The invention aims to overcome the defect of the conventional filter screen replacement or cleaning reminding function, and provides a system and a method for risk identification of the purification efficiency and reminding of filter screen resetting of air purification equipment.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a risk identification and filter screen resetting reminding system for the purification efficiency of air purification equipment comprises an air inlet, an air filter screen and an air outlet, wherein the air filter screen is arranged between the air inlet and the air outlet, and the system also comprises a concentration detection unit, a wind speed detection unit, a storage unit, a comparison unit and a reminding unit; the concentration detection unit and the wind speed detection unit are both arranged at the air outlet, the concentration detection unit is in signal connection with the comparison unit, and one end of the wind speed detection unit is in signal connection with the storage unit; one end of the wind speed detection unit is also in signal connection with the comparison unit; the other end of the storage unit is in signal connection with the comparison unit; the other end of the comparison unit is in signal connection with the reminding unit; wherein,
the concentration detection unit is used for detecting the outlet concentration of the air filter screen;
the wind speed detection unit is used for detecting wind speed of the wind port;
the storage unit is used for storing a preset concentration comparison value and a preset wind speed comparison value of the gas to be detected;
the comparison unit is used for comparing the concentration of the gas to be detected at the air outlet with a preset comparison value of the gas to be detected at the storage unit in real time and comparing the air speed at the air outlet with the preset comparison value of the air speed at the storage unit in real time;
the reminding unit is used for sending out information of replacement or cleaning reminding according to the comparison result of the comparison unit.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the gas to be measured comprises formaldehyde and PM2.5、TVOC、O3Or NH3Any one of them.
The concentration detection unit is set to formaldehyde and PM according to the type of the gas to be detected2.5、TVOC、O3And NH3Any one of the gas concentration sensors.
The wind speed detection unit adopts a wind speed sensor; wherein, the wind speed sensor works when the air purification equipment is in a high-grade wind speed state.
The reminding unit sends reminding information in a mobile phone APP, alarm sound or continuous light-on mode.
The invention also discloses a method for risk identification of the purification efficiency and reminding of filter screen replacement of the air purification equipment, which comprises the following steps:
s1: the wind speed detection unit detects the wind speed of the air outlet in real time when the air purification equipment works in a high-grade wind speed state for the first time and transmits the wind speed to the storage unit;
s2: the storage unit stores the wind speed detected in the step S1 as a preset wind speed comparison numerical value;
s3: the concentration detection unit detects the concentration of the gas to be detected at the air port in real time and transmits the concentration to the comparison unit;
s4: the comparison unit compares the concentration of the gas to be detected in the step S3 with a preset comparison value of the concentration of the gas to be detected in the storage unit, judges whether the concentration of the gas to be detected is greater than the preset comparison value of the concentration, and triggers the reminding unit to send a replacing or cleaning signal when the judgment result is yes and continues for a period of time;
s5: the air purification equipment is switched to a high-grade air speed state, and the air speed detection unit detects the air speed of the air inlet in real time and transmits the air speed to the comparison unit;
s6: and the comparison unit compares the air outlet speed detected in the step S5 with the preset air speed comparison value stored in the step S2, judges whether the air outlet speed is less than the preset air speed comparison value, and triggers the reminding unit to output a replacing or cleaning signal when the judgment result is yes and continues for a period of time.
Further, in step S4 and step S6, the continuous period of time is at least 10 seconds.
Further, in step S6, when the wind speed at the wind outlet is less than 50% of the preset wind speed comparison value and the duration is 10 seconds, the reminding unit is triggered to output a signal for replacement or cleaning.
Further, the high-grade wind speed state specifically refers to a gear position of the air purification equipment under the condition of bringing the highest wind speed.
The invention has the beneficial effects that:
according to the invention, the concentration detection unit and the wind speed detection unit are directly arranged at the air outlet, so that the gas entering the air purification equipment can be detected in real time, calculation is not needed in the detection process, and the confidence level of the detection result is improved; meanwhile, the invention has different reminding modes aiming at different filter screens, can detect the service life of the medium filter type filter screen through the change of the wind speed and can also detect the service life of the gas filter screen or the electrostatic dust removal filter screen through the change of the concentration.
Drawings
Fig. 1 is a block diagram showing a replacement or cleaning reminding system according to the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1, the air purification equipment purification efficiency risk identification and filter screen resetting reminding system includes an air inlet, an air filter screen and an air outlet, wherein the air filter screen is arranged between the air inlet and the air outlet, and further includes a concentration detection unit, a wind speed detection unit, a storage unit, a comparison unit and a reminding unit; the concentration detection unit and the wind speed detection unit are both arranged at the air outlet, the concentration detection unit is in signal connection with the comparison unit, and one end of the wind speed detection unit is in signal connection with the storage unit; one end of the wind speed detection unit is also in signal connection with the comparison unit; the other end of the storage unit is in signal connection with the comparison unit; the other end of the comparison unit is in signal connection with the reminding unit; wherein,
the concentration detection unit is used for detecting the outlet concentration of the air filter screen;
the wind speed detection unit is used for detecting wind speed of the wind port;
the storage unit is used for storing a preset concentration comparison value and a preset wind speed comparison value of the gas to be detected;
the comparison unit is used for comparing the concentration of the gas to be detected at the air outlet with a preset comparison value of the gas to be detected at the storage unit in real time and comparing the air speed at the air outlet with the preset comparison value of the air speed at the storage unit in real time;
the reminding unit is used for sending out information of replacement or cleaning reminding according to the comparison result of the comparison unit.
In this embodiment, the gas to be measured includes formaldehyde and PM2.5、TVOC、O3Or NH3Any one of them.
In this embodiment, the concentration detecting unit is set to formaldehyde and PM according to the type of the gas to be detected2.5、TVOC、O3And NH3Any one of the gas concentration sensors.
In this embodiment, the wind speed detection unit adopts a wind speed sensor; wherein, the wind speed sensor works when the air purification equipment is in a high-grade wind speed state.
In this embodiment, the concentration preset comparison values include formaldehyde, TVOC, and O3、NH3And PM2.5The concentration value of (c); wherein, formaldehyde, TVOC and O3、NH3The concentration value of (A) is derived from GB/T18883 version, and the PM is2.5The concentration value of the (B) is derived from 24-hour average primary data of GB 3095 version; and presetting and storing the concentration numerical value in a storage unit for comparing the concentration numerical value with the actually measured concentration numerical value subsequently.
In this embodiment, the reminding unit sends the reminding information in a mode of mobile phone APP, alarm sound or continuous lighting.
A method for risk identification and filter screen reset reminding of purification efficiency of air purification equipment comprises the following steps:
s1: the wind speed detection unit detects the wind speed of the air outlet in real time when the air purification equipment works in a high-grade wind speed state for the first time and transmits the wind speed to the storage unit; the high-grade wind speed state specifically refers to a gear position of the air purification equipment under the condition of bringing the highest wind speed;
s2: the storage unit stores the wind speed detected in the step S1 as a preset wind speed comparison numerical value;
s3: the concentration detection unit detects the concentration of the gas to be detected at the air port in real time and transmits the concentration to the comparison unit;
s4: the comparison unit compares the concentration of the gas to be detected in the step S3 with a preset comparison value of the concentration of the gas to be detected in the storage unit, judges whether the concentration of the gas to be detected is greater than the preset comparison value of the concentration, and triggers the reminding unit to send a replacing or cleaning signal when the judgment result is yes and continues for a period of time; wherein said continuous period of time is at least 10 seconds;
s5: the air purification equipment is switched to a high-grade air speed state, and the air speed detection unit detects the air speed of the air inlet in real time and transmits the air speed to the comparison unit;
s6: the comparison unit compares the air outlet speed detected in the step S5 with the preset air outlet speed comparison value stored in the step S2, judges whether the air outlet speed is smaller than the preset air outlet speed comparison value or not, and triggers the reminding unit to output a replacing or cleaning signal when the judgment result is yes and continues for a period of time; wherein said continuous period of time is at least 10 seconds; preferably, when the wind speed of the wind outlet is less than 50% of the preset wind speed comparison value and the duration time is 10 seconds, the reminding unit is triggered to output a replacing or cleaning signal.
Example 1
The concentration detection unit is arranged behind the HEPA filter screen as PM2.5Sensor as PM2.5Detecting the concentration; the wind speed detection unit detects that the wind speed is 5 m/s when the HEPA filter screen works for the first time, the wind speed is recorded in the storage unit and used as a preset wind speed comparison numerical value, and the wind speed detection unit only works under high-grade wind speed; memory cell pre-PM2.5The concentration ratio value is 35 ug/m3。
In operation, concentration detection unit detects wind gap PM in real time2.5Concentration, found to be 40 ug/m3And when the time lasts for 10 seconds, a replacement reminding signal is sent out through an alarm sound. After the HEPA filter screen is replaced, the wind speed detection unit is reset, the wind speed detection unit detects the wind speed of 5.2 m/s when the new HEPA filter screen works at the high-grade wind speed for the first time, the wind speed is recorded in the storage unit and serves as new preset wind speed data, and the last preset wind speed comparison value is covered.
Example 2
The concentration detection unit is provided with a formaldehyde sensor behind the formaldehyde filter screen for detecting the concentration of formaldehyde; the wind speed detection unit detects the wind speed of 4.5 m/s when the formaldehyde filter screen works for the first time, the wind speed is recorded in the storage unit and is used as a preset wind speed comparison numerical value, and the wind speed detection unit only works under high-grade wind speed; the comparison value of the concentration of the formaldehyde preset in the storage unit is 0.1 mg/m3。
In the work, the concentration detection unit detects the concentration of the formaldehyde in the tuyere in real time, and the detected value is 0.11 mg/m3And when the time lasts for 10 seconds, the APP installed at the mobile phone terminal sends out a replacement reminding signal. And after the formaldehyde filter screen is replaced, resetting the wind speed detection unit, wherein the wind speed detection unit detects the wind speed of 4.8 m/s when the new formaldehyde filter screen works at the high wind speed for the first time, and the wind speed is recorded in the storage unit as new preset wind speed data to cover the last preset wind speed comparison value.
Example 3
The concentration detection unit is arranged behind the HEPA filter screen as PM2.5Sensor as PM2.5Detecting the concentration; the wind speed detection unit detects that the wind speed is 5.3 m/s when the HEPA filter screen works for the first time, the wind speed is recorded in the storage unit and used as a preset wind speed comparison numerical value, and the wind speed detection unit only works under high-grade wind speed; memory cell pre-PM2.5The concentration ratio value is 35 ug/m3。
In the work, the wind speed detection unit detects the wind speed of the air port in real time under the high-grade wind speed, the detected value is 2.4 m/s, and a replacement reminding signal is sent out through an alarm sound when the time lasts for 10 seconds. After the HEPA filter screen is replaced, the wind speed detection unit is reset, the wind speed detection unit detects the wind speed of 4.7 m/s when the new HEPA filter screen works at the high-grade wind speed for the first time, the wind speed is recorded in the storage unit and serves as new preset wind speed data, and the last preset wind speed comparison value is covered.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The utility model provides an air purification equipment purification efficiency risk discernment, filter screen reset remind system, includes air intake, airstrainer and air outlet, airstrainer locate between air intake and the air outlet, its characterized in that: the wind speed detection device also comprises a concentration detection unit, a wind speed detection unit, a storage unit, a comparison unit and a reminding unit; the concentration detection unit and the wind speed detection unit are both arranged at the air outlet, the concentration detection unit is in signal connection with the comparison unit, and one end of the wind speed detection unit is in signal connection with the storage unit; one end of the wind speed detection unit is also in signal connection with the comparison unit; the other end of the storage unit is in signal connection with the comparison unit; the other end of the comparison unit is in signal connection with the reminding unit; wherein,
the concentration detection unit is used for detecting the outlet concentration of the air filter screen;
the wind speed detection unit is used for detecting wind speed of the wind port;
the storage unit is used for storing a preset concentration comparison value and a preset wind speed comparison value of the gas to be detected;
the comparison unit is used for comparing the concentration of the gas to be detected at the air outlet with a preset comparison value of the gas to be detected at the storage unit in real time and comparing the air speed at the air outlet with the preset comparison value of the air speed at the storage unit in real time;
the reminding unit is used for sending out information of replacement or cleaning reminding according to the comparison result of the comparison unit.
2. The air purification equipment purification efficiency risk identification and filter screen resetting reminding system as claimed in claim 1, wherein: the gas to be detected comprises formaldehyde and PM2.5、TVOC、O3Or NH3Any one of them.
3. The air purification equipment purification efficiency risk identification and filter screen resetting reminding system as claimed in claim 2, wherein: the concentration detection unit detects the concentration of the gas to be detected according to the type of the gas to be detectedSet as formaldehyde and PM2.5、TVOC、O3And NH3Any one of the gas concentration sensors.
4. The air purification equipment purification efficiency risk identification and filter screen resetting reminding system as claimed in claim 1, wherein: the wind speed detection unit adopts a wind speed sensor; wherein, the wind speed sensor works when the air purification equipment is in a high-grade wind speed state.
5. The air purification equipment purification efficiency risk identification and filter screen resetting reminding system as claimed in claim 1, wherein: the reminding unit sends reminding information in a mobile phone APP, alarm sound or continuous lighting mode.
6. The utility model provides an air purification equipment purification efficiency risk discernment, filter screen reset remind method which characterized in that includes the following step:
s1: the wind speed detection unit detects the wind speed of the air outlet in real time when the air purification equipment works in a high-grade wind speed state for the first time and transmits the wind speed to the storage unit;
s2: the storage unit stores the wind speed detected in the step S1 as a preset wind speed comparison numerical value;
s3: the concentration detection unit detects the concentration of the gas to be detected at the air port in real time and transmits the concentration to the comparison unit;
s4: the comparison unit compares the concentration of the gas to be detected in the step S3 with a preset comparison value of the concentration of the gas to be detected in the storage unit, judges whether the concentration of the gas to be detected is greater than the preset comparison value of the concentration, and triggers the reminding unit to send a replacing or cleaning signal when the judgment result is yes and continues for a period of time;
s5: the air purification equipment is switched to a high-grade air speed state, and the air speed detection unit detects the air speed of the air inlet in real time and transmits the air speed to the comparison unit;
s6: and the comparison unit compares the air outlet speed detected in the step S5 with the preset air speed comparison value stored in the step S2, judges whether the air outlet speed is less than the preset air speed comparison value, and triggers the reminding unit to output a replacing or cleaning signal when the judgment result is yes and continues for a period of time.
7. The air purification equipment purification efficiency risk identification and filter screen resetting reminding method as claimed in claim 6, wherein the method comprises the following steps: in step S4 and step S6, the continuous period of time is at least 10 seconds.
8. The air purification equipment purification efficiency risk identification and filter screen resetting reminding method as claimed in claim 7, wherein the method comprises the following steps: in the step S6, when the wind speed at the wind outlet is less than 50% of the preset wind speed comparison value and the duration time is 10 seconds, the reminding unit is triggered to output a signal for replacement or cleaning.
9. The air purification equipment purification efficiency risk identification and filter screen resetting reminding method as claimed in claim 6, wherein the method comprises the following steps: the high-grade wind speed state specifically refers to a gear position of the air purification equipment under the condition of bringing the highest wind speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069899.1A CN111023442A (en) | 2019-11-05 | 2019-11-05 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
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| CN201911069899.1A CN111023442A (en) | 2019-11-05 | 2019-11-05 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
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| CN111023442A true CN111023442A (en) | 2020-04-17 |
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