CN113465124B - Fan filter screen service life prediction method and device, and storage medium and device - Google Patents

Fan filter screen service life prediction method and device, and storage medium and device Download PDF

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Publication number
CN113465124B
CN113465124B CN202110731310.0A CN202110731310A CN113465124B CN 113465124 B CN113465124 B CN 113465124B CN 202110731310 A CN202110731310 A CN 202110731310A CN 113465124 B CN113465124 B CN 113465124B
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life
filter screen
fan filter
attenuation
fan
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CN113465124A (en
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李军华
邢伟
孙建军
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Wuhan Century Superpower Technology Co ltd
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Wuhan Century Superpower Technology Co ltd
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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
    • 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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • 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
    • 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
    • F24F2110/40—Pressure, e.g. wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention discloses a method, equipment, a storage medium and a device for predicting the service life of a fan filter screen, wherein the method comprises the steps of obtaining the first working time of wind pressure information of the fan filter screen in the current working state; predicting the attenuation life of the fan filter screen in the current working state according to the air pressure information and the first working time to obtain a first attenuation life; acquiring the rated service life of a fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time in the current environment state; predicting the attenuation life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second attenuation life; and determining the residual life of the fan filter screen according to the first decay life and the second decay life. The method and the device predict the decay life under the current working state and the current environment state so as to accurately determine the residual life of the fan filter screen.

Description

Fan filter screen service life prediction method and device, and storage medium and device
Technical Field
The invention relates to the technical field of air purification, in particular to a method, equipment, a storage medium and a device for predicting the service life of a fan filter screen.
Background
The fan is a simple and effective air purification device, and can circulate indoor air, so that dirty indoor air is discharged outdoors, and outdoor fresh air is input indoors, so that the indoor air is kept fresh and clean. The fan can be applied to families, and can be used for air exchange in industrial places, indoor cabinets or cabinets and outdoor cabinets or cabinets in the industrial places. The filter screen is the key part of deciding fan purification efficiency, and the fan is in the in-service use in-process, and the windage of its filter screen can increase along with the increase of adsorbed particulate matter to cause the air supply volume of fan to descend under the unchangeable circumstances of fan rotational speed, thereby new fan's purification capacity and purification efficiency also can descend thereupon.
The fan filter screen does not basically monitor the service life in practical application, the conventional method is to use the design length of time as the reference, or only rely on the naked eye to observe, and the life of filter screen actually has very big relation with environment, material, maintenance etc. lead to actual life and design value deviation great, the fan filter screen of industrial equipment changes too early and can cause the waste of resource, the fan filter screen of industrial equipment changes untimely, can lead to equipment overtemperature, the ageing of components and parts with higher speed, or the machine halt, the protection of suddenly shut down, still can damage suddenly under the extreme condition.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, equipment, a storage medium and a device for predicting the service life of a fan filter screen, and aims to solve the technical problem that the residual service life of the fan filter screen cannot be accurately determined in the prior art.
In order to achieve the purpose, the invention provides a fan filter screen service life prediction method, which comprises the following steps:
acquiring air pressure information of a fan filter screen in a current working state and first working time of the fan filter screen;
predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life;
acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time in the current environment state;
predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life;
and determining the residual life of the fan filter screen according to the first decay life and the second decay life.
Optionally, the step of predicting the decay life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first decay life includes:
determining the filtering rate of the fan filter screen according to the air pressure information;
and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life.
Optionally, before the step of predicting the decay life of the fan filter screen in the current working state by a preset first filter screen decay algorithm according to the filtering rate and the first working time to obtain a first decay life, the method further includes:
acquiring the air pollutant amount in unit volume of the inlet side of the fan filter screen;
correspondingly, the step of predicting the attenuation life of the fan filter screen in the current working state by presetting a first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life comprises the following steps:
and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the air pollutant amount to obtain a first attenuation life.
Optionally, the predicting the decay life of the fan filter screen in the current working state according to the filtering rate, the first working time and the air pollutant amount by a preset first filter screen decay algorithm, and the step of obtaining the first decay life includes:
determining the attenuation life of the fan filter screen according to the air pollutant amount;
and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the attenuation life to obtain a first attenuation life.
Optionally, the predicting the decay life of the fan filter screen in the current environmental state according to the rated life, the first air pressure information, the second air pressure information and the second working time, and the obtaining a second decay life includes:
determining the air pressure difference between the inlet side and the outlet side of the fan filter screen according to the first air pressure information and the second air pressure information;
and predicting the attenuation life of the fan filter screen in the current environment state according to the rated life, the air pressure difference and the second working time to obtain a second attenuation life.
Optionally, the predicting the decay life of the fan filter screen in the current environmental state according to the rated life, the air pressure difference and the second working time, and the obtaining a second decay life includes:
determining the service life coefficient of the fan filter screen according to the air pressure difference;
determining the environmental life of the fan filter screen in the current environmental state according to the life coefficient and the rated life;
and predicting the attenuation life of the fan filter screen in the current environment state according to the environment life and the second working time to obtain a second attenuation life.
Optionally, after the step of determining the remaining life of the fan screen according to the first decay life and the second decay life, the method further includes:
and when the residual life is lower than a preset life threshold value, generating alarm prompt information of the blockage of the fan filter screen.
In addition, in order to achieve the above object, the present invention further provides a fan filter screen life prediction device, where the fan filter screen life prediction device includes a memory, a processor, and a fan filter screen life prediction program stored in the memory and executable on the processor, and the fan filter screen life prediction program is configured to implement the steps of the fan filter screen life prediction method described above.
In addition, in order to achieve the above object, the present invention further provides a storage medium, where a fan filter life prediction program is stored, and when the fan filter life prediction program is executed by a processor, the steps of the fan filter life prediction method as described above are implemented.
In addition, in order to achieve the above object, the present invention further provides a fan filter screen life prediction device, including: the device comprises an information acquisition module, an attenuation life prediction module and a residual life determination module;
the information acquisition module is used for acquiring the air pressure information of the fan filter screen in the current working state and the first working time of the fan filter screen;
the attenuation life prediction module is used for predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life;
the information acquisition module is further used for acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side under the current environment state, second air pressure information at the outlet side and second working time;
the attenuation life prediction module is further configured to predict the attenuation life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time, so as to obtain a second attenuation life;
and the residual life determining module is used for determining the residual life of the fan filter screen according to the first decay life and the second decay life.
The invention provides a method, equipment, a storage medium and a device for predicting the service life of a fan filter screen, wherein the method comprises the steps of obtaining wind pressure information of the fan filter screen in the current working state and first working time of the fan filter screen; predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life; acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time under the current environment state; predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life; and determining the residual life of the fan filter screen according to the first decay life and the second decay life. The method and the device predict the decay life under the current working state and the current environment state so as to accurately determine the residual life of the fan filter screen.
Drawings
FIG. 1 is a schematic structural diagram of a fan filter screen life prediction device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for predicting the life of a fan filter according to a first embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for predicting the life of a fan filter according to a second embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for predicting the life of a fan filter according to a third embodiment of the present invention;
fig. 5 is a block diagram illustrating a first embodiment of a life prediction device for a fan filter screen according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a fan filter screen life prediction device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the fan filter screen life prediction apparatus may include: pressure acquisition module 1001, processor 1002, such as a Central Processing Unit (CPU), communication bus 1003, user interface 1004, network interface 1005, and memory 1006. The communication bus 1003 is used to implement connection communication among these components. The user interface 1004 may include a Display screen (Display), and the optional user interface 1004 may also include a standard wired interface, a wireless interface, and the wired interface to the user interface 1004 may be a USB interface in the present invention. The network interface 1005 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (WI-FI) interface). The Memory 1006 may be a Random Access Memory (RAM) or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1006 may alternatively be a storage device separate from the processor 1002 as previously described.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 does not constitute a limitation of a fan screen life prediction device and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in FIG. 1, memory 1006, identified as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a fan screen life prediction program.
In the device for predicting the service life of a fan filter screen shown in fig. 1, the network interface 1005 is mainly used for connecting to a background server and communicating with the background server in data; the user interface 1004 is mainly used for connecting user equipment; the fan filter screen life prediction device calls a fan filter screen life prediction program stored in the memory 1006 through the processor 1002, and executes the fan filter screen life prediction method provided by the embodiment of the invention.
Based on the hardware structure, the embodiment of the method for predicting the service life of the fan filter screen is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a method for predicting the life of a fan filter according to the present invention, and proposes the first embodiment of the method for predicting the life of a fan filter according to the present invention.
In a first embodiment, the method for predicting the service life of the fan filter screen comprises the following steps:
step S10: the method comprises the steps of obtaining wind pressure information of a fan filter screen in a current working state and first working time of the fan filter screen.
It should be understood that the main execution body of this embodiment is a fan filter screen monitoring device, the fan filter screen monitoring device may be an intelligent device connected to a sensor, for example, a computer, a server, etc. connected to a pressure sensor, where the intelligent device may be a device using an ARM as a core, the fan filter screen monitoring device may collect pressure information of the fan filter screen, and the intelligent device may determine a state of the fan filter screen according to the collected pressure information.
The fan filter is a device for filtering air pollutants in air when the fan is ventilating. The current working state refers to the state of the current fan in normal work. The wind pressure information is the pressure of wind on a plane perpendicular to the direction of the airflow. In this embodiment, the partial pressure information refers to pressure information of wind on the filter screen when the fan is ventilating. There is certain correlation between the power of wind pressure information and fan, and fan power is also big, and the amount of wind that passes through the filter screen in the unit interval is big more, and the wind pressure that the fan filter screen received this moment is big more. The first working time refers to the time when the fan works in the current working state, namely the time when the fan filter screen continuously filters air pollutants in the air in the current state of the fan.
In the concrete implementation, fan filter screen supervisory equipment can gather the wind pressure information that the fan filter screen received through the mode of installation pressure sensor on the fan filter screen, also can gather through the motor speed to the fan certainly, can know according to hydrodynamics's principle, and the wind pressure of fan is directly proportional with the rotational speed square of motor in the fan, can confirm the wind pressure information that the filter screen received according to the wind pressure information of fan this moment. The fan filter screen monitoring equipment can record the working time of the fan in the current state to obtain the first working time of the fan filter screen.
Step S20: and predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life.
It should be noted that the decay life refers to the life lost when the fan filter screen is in operation. In fan filter screen use, the fan filter screen can be along with filtering air pollutant's gradual increase, can directly lead to air pollutant to adhere to on the extension filter screen, and in the long run, the fan filter screen can be blockked by adnexed air pollutant and lead to fan filter screen work efficiency to reduce and can't work even, and the life-span of fan filter screen can reduce gradually, and the life-span that reduces the part just is the decay life-span of fan filter screen. The decay life is a decay life with respect to a rated life. For example, in the case of a high wind pressure of the fan, one hour of operation of the fan filter screen corresponds to two hours under the standard wind pressure, and the decay life refers to two hours under the standard wind pressure. The decay life-span and the wind pressure information of fan filter screen and the first operating time of working under current operating condition are relevant, for example the rotational speed of motor is higher in the fan, and the amount of wind that the fan produced in the unit interval is higher this moment, and the filterable amount of wind of fan filter screen unit interval is higher this moment, and the air pollution thing volume that adheres to on the fan filter screen in the unit interval is higher, directly leads to fan filter screen life-span decay faster. The first decay life is the life of the fan filter screen decay caused by the fan working state.
In specific implementation, the fan filter screen monitoring equipment can determine the filtered air volume of the fan filter screen in unit time according to the air pressure information so as to determine the attenuation degree of the fan filter screen in unit time, and the attenuation life of the fan filter screen in the current working state is taken as a first attenuation life according to first working time. For example, when the fan is in a standard rotation state and the motor operates at a rated rotation speed, the fan filter screen attenuates according to a calibrated attenuation degree, but when the rotation speed of the fan is doubled, the service life of the fan filter screen may attenuate according to 1.5 times of the calibrated attenuation degree, and in this state, the fan filter screen operates for ten hours, which is equivalent to fifteen hours in the standard state.
Step S30: and acquiring the rated service life of the fan filter screen, first air pressure information of the inlet side, second air pressure information of the outlet side and second working time of the fan filter screen in the current environment state.
It should be noted that the rated service life of the fan filter screen refers to the time length that the fan filter screen can normally work under standard working conditions and environmental conditions. The current environment state refers to the environment state of the fan filter screen for ventilation. According to the difference of environmental condition, the life of fan filter screen is also different. For example, the service life of the fan in the machine room and the service life of the fan filter screen in the kitchen are completely different, the oil smoke generated in the kitchen is more, the air pollutant particles in the air of unit volume are more, and the service life of the fan filter screen in the kitchen is greatly shorter than that of the fan filter screen in the machine room under the condition of removing the same amount of gas. The first air pressure information refers to air pressure information on the air exchange inlet side of the fan filter screen, and the second air pressure information refers to air pressure information on the air exchange outlet side of the fan filter screen. The second working time refers to the working time of the fan filter screen in the current working environment.
In specific implementation, the fan filter screen monitoring device can acquire first air pressure information and second air pressure information on the inlet side and the outlet side of the fan filter screen through the air pressure sensors arranged on the two sides of the fan filter screen, and record the working time of the fan in the current environment state as second working time.
Step S40: and predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life.
It should be noted that, when the fan takes a breath, the fan needs to discharge indoor air to the outside, and at this moment, because the fan filter screen has a certain area, the resistance value is discharged, so that the first air pressure information on the inlet side of the fan filter screen is often greater than the second air pressure information on the outlet side, and the air pressure difference is within a certain range, and if the air pressure difference exceeds a certain range, it indicates that the fan filter screen may be blocked and cannot work normally. In this embodiment, the attenuation life of the fan filter screen may be predicted according to the pressure difference information between the pressure values in the first air pressure information and the second air pressure information.
In specific implementation, the fan filter screen monitoring device may determine a conversion coefficient between an actual life and a rated life of the fan filter screen in a current environmental state according to first air pressure information on an inlet side and second air pressure information on an outlet side of the fan filter screen, and predict an attenuation life of the fan filter screen in the current environmental state according to the conversion coefficient and second working time to obtain a second attenuation life. The conversion coefficient is the ratio of the attenuation life of the fan filter screen in the same working time under the current environment and the standard environment.
Step S50: and determining the residual life of the fan filter screen according to the first decay life and the second decay life.
It should be noted that the remaining life refers to the time length that the fan filter screen can continue to work under the normal working condition. In this embodiment, in the case of determining the first decay life and the second decay life, the remaining life of the fan filter screen may be determined by subtracting the first decay life and the second decay life from the rated life.
The embodiment provides a method for predicting the service life of a fan filter screen, which comprises the steps of obtaining wind pressure information of the fan filter screen in the current working state and first working time of the fan filter screen; predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life; acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time under the current environment state; predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life; and determining the residual life of the fan filter screen according to the first decay life and the second decay life. The residual life of the fan filter screen is accurately determined by predicting the first decay life and the second decay life under the current working state and the current environment state.
Referring to fig. 3, fig. 3 is a schematic flow chart of a fan filter screen life prediction method according to a second embodiment of the present invention, and the fan filter screen life prediction method according to the second embodiment of the present invention is proposed based on the first embodiment shown in fig. 2.
In the second embodiment, the step S20 includes:
step S201: and determining the filtering rate of the fan filter screen according to the air pressure information.
It should be noted that the filtration rate of the fan screen refers to the amount of gas filtered in a unit time. The amount of air pollutants in the amount of filtered air is the same as the amount of air pollutants attached to the fan screen. The larger the pressure value of the wind pressure information is, the more the amount of gas passing through the fan filter screen in unit time is, the more the amount of air pollutants attached to the fan filter screen is, and the longer the first attenuation life of the fan filter screen is. In specific implementation, the fan filter screen monitoring device may determine the amount of gas passing through the fan filter screen in unit time under the condition of the current wind pressure information according to the relationship between the current wind pressure information and the amount of gas.
Step S202: and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life.
It should be noted that the first filter screen attenuation algorithm is an algorithm for predicting the fan filter screen attenuation life according to the fan working state. The first filter screen attenuation algorithm can predict the first attenuation life according to the filtering rate of the fan filter screen and the first working time of the current fan working state.
In specific implementation, the fan filter screen monitoring device can predict the attenuation life of the fan filter screen in unit time through a first filter screen attenuation algorithm according to the filtering rate to obtain the attenuation life in unit time, and then determine a first attenuation life caused by first time of working in the current fan working state according to the first working time and the attenuation life in unit time.
Wherein, before the step S202, the method further includes:
step S201': and acquiring the air pollutant amount in the unit volume of the inlet side of the fan filter screen.
The air pollutant amount refers to the amount of pollutants that can be filtered by the fan filter screen and then attached to the fan filter screen. The direct less of some pollutants, fan filter screen probably can not be to this partial pollutant filtering, and this partial pollutant can not cause the influence to fan filter screen's life-span. Confirmation of the amount of air pollutants included in the exhaust gas is required before determining the life of the filter screen.
In specific implementation, the fan filter screen monitoring device can collect gas on the inlet side of a unit volume, and filter air pollutants in the gas by using the same filter screen to determine the amount of the air pollutants in the unit volume. Of course, multiple volumes of gas may be collected and averaged to obtain a more accurate amount of air pollutants.
Correspondingly, the step S202 is a step S202': and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the air pollutant amount to obtain a first attenuation life.
In particular implementations, the fan screen monitoring device may pass through a formula L of a first screen attenuation algorithm based on a filtration rate and an amount of air contaminants per unit volume 1 ＝Q qir /Q dis *T 1 Wherein L is 1 For the first decay life, Q qir Is the amount of air pollutants per unit volume, Q dis Is the amount of contaminant filtered per unit time, i.e. the filtration rate, T 1 Predicting the attenuation life of the fan filter screen in unit time for the first working time to obtain the attenuation life in unit time, and then determining the first attenuation life caused by the first working time in the current fan working state according to the first working time and the attenuation life in unit time.
Wherein the step 202' comprises:
step S2021': and determining the state life of the fan filter screen according to the air pollutant amount.
It should be noted that the state life refers to a time length of normal use of the fan filter screen in the current working state of the fan. The time length of using of fan filter screen is often the longest under the state that the fan is in rated power, but when the fan is in not belonging to under the abnormal condition of rated power and continuously uses, the actual life of fan filter screen can reduce. In specific implementation, the fan filter screen monitoring device can determine the change of the air pollutant amount on the fan filter screen according to the change of the power state of the fan in the current state, and further determine the state life of the fan filter screen in the current working state.
Step S2022': and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the state life to obtain a first attenuation life.
In specific implementation, the fan filter screen monitoring device can predict the attenuation life of the fan filter screen in unit time through a first filter screen attenuation algorithm according to the filtering rate and the state life to obtain the attenuation life in unit time, and then determine a first attenuation life caused by first time of working in the current fan working state according to the first working time and the attenuation life in unit time.
It should be understood that the fan screen monitoring device may also identify a material of the fan screen, a usage requirement of the fan, and a filtering effect of the fan screen, and determine an initial state of the fan screen according to the material, the usage requirement, and the filtering effect. The fan filter screen monitoring equipment has very flexible adaptability, and can automatically calibrate the information of initial and end parameters of the service life at any time according to the material composition, the use requirement and the filtering effect of the fan filter screen.
The embodiment provides a method for predicting the service life of a fan filter screen, which comprises the steps of obtaining wind pressure information of the fan filter screen in the current working state and first working time of the fan filter screen; predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life; acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time under the current environment state; predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life; and determining the residual life of the fan filter screen according to the first decay life and the second decay life. The residual life of the fan filter screen is accurately determined by predicting the first decay life and the second decay life under the current working state and the current environment state.
Referring to fig. 4, fig. 4 is a schematic flow chart of a third embodiment of a method for predicting a life of a fan filter according to the present invention, and the third embodiment of the method for predicting a life of a fan filter is provided based on the first embodiment shown in fig. 2.
In the third embodiment, the step S40 includes:
step S401: and determining the air pressure difference between the inlet side and the outlet side of the fan filter screen according to the first air pressure information and the second air pressure information.
It should be noted that, when the fan takes a breath, the fan needs to discharge indoor air to the outside, and at this moment, because the fan filter screen has a certain area, the resistance value is discharged, so that the first air pressure information on the inlet side of the fan filter screen is often greater than the second air pressure information on the outlet side, and the air pressure difference is within a certain range, and if the air pressure difference exceeds a certain range, it indicates that the fan filter screen may be blocked and cannot work normally. In this embodiment, of course, the pressure difference between the inlet side and the outlet side of the fan filter screen is obtained by performing the worst pressure value according to the first pressure information and the second pressure information.
Step S402: and predicting the attenuation life of the fan filter screen in the current environment state according to the rated life, the air pressure difference and the second working time to obtain a second attenuation life.
In specific implementation, the fan filter screen monitoring device may determine a conversion coefficient between an actual life and a rated life of the fan filter screen in a current environment state according to a pressure difference between an inlet side and an outlet side of the fan filter screen, and predict an attenuation life of the fan filter screen in the current environment state according to the conversion coefficient and a second working time to obtain a second attenuation life.
Wherein, step S401 includes:
step S4021: and determining the life coefficient of the fan filter screen according to the air pressure difference.
It should be noted that the life factor refers to a ratio between an actual life of the fan filter screen in different environments and a rated life in a standard environment. And determining the service life of the fan filter screen in the current environment according to the rated service life and the service life coefficient in the current environment. The air pressure difference between the inlet side and the outlet side of the fan filter screen is changed when the fan filter screen passes through the air environment of unit volume, the air pollutant amount in the air environment of unit volume can be determined according to the change of the air pressure difference, and the service life coefficient of the fan filter screen in the current environment is determined according to the air pollutant amount in the current environment and the air pollutant amount in the standard environment.
Step S4022: and determining the environmental life of the fan filter screen in the current environmental state according to the life coefficient and the rated life.
It should be noted that the environmental life means the service life of the fan filter screen corresponding to different service environments. In this embodiment, when determining the life factor of the current environment, the environmental life of the fan filter screen in the current environment can be obtained through mathematical operation according to the life factor and the rated life of the fan filter screen.
Step S4023: and predicting the attenuation life of the fan filter screen in the current environment state according to the environment life and the second working time to obtain a second attenuation life.
It should be noted that when the environmental life is determined, the decay life in the second working time process of working in the current environment can be determined, and then the second decay life corresponding to the fan filter screen in the standard environment is determined according to the decay life and the life coefficient.
The step S50 is followed by:
step S60: and when the residual life is lower than a preset life threshold value, generating alarm prompt information of the blockage of the fan filter screen.
It should be noted that the preset life threshold is the lowest remaining life of the fan filter screen that is preset. When the remaining life is less than the preset life threshold, the fan filter screen and the fan filter screen can not work normally, and the fan filter screen needs to be replaced. The fan filter screen monitoring device generates alarm prompt information when detecting that the residual life of the fan filter screen is lower than a preset life threshold value, and prompts that the fan filter screen needs to be replaced.
The embodiment provides a method for predicting the service life of a fan filter screen, which comprises the steps of obtaining wind pressure information of the fan filter screen in the current working state and first working time of the fan filter screen; predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life; acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time under the current environment state; predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life; and determining the residual life of the fan filter screen according to the first decay life and the second decay life. The residual life of the fan filter screen is accurately determined by predicting the first decay life and the second decay life under the current working state and the current environment state.
In addition, an embodiment of the present invention further provides a storage medium, where a fan filter life prediction program is stored on the storage medium, and when being executed by a processor, the fan filter life prediction program implements the steps of the fan filter life prediction method described above.
In addition, referring to fig. 5, an embodiment of the present invention further provides a fan filter screen life prediction apparatus, where the fan filter screen life prediction apparatus includes: an information acquisition module 10, an attenuated life prediction module 20 and a remaining life determination module 30;
the information acquisition module 10 is configured to acquire air pressure information of a fan filter screen in a current working state and first working time of the fan filter screen;
the attenuation life prediction module 20 is configured to predict an attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time, so as to obtain a first attenuation life;
the information obtaining module 10 is further configured to obtain a rated life of the fan filter screen, first air pressure information of the fan filter screen at an inlet side in a current environment state, second air pressure information of the fan filter screen at an outlet side, and second working time;
the decay life prediction module 20 is further configured to predict the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information, and the second working time, so as to obtain a second decay life;
and the residual life determining module 30 is configured to determine the residual life of the fan filter screen according to the first decay life and the second decay life.
In this embodiment, a device for predicting the service life of a fan filter screen is provided, in which an information obtaining module 10 obtains wind pressure information of the fan filter screen in a current working state and a first working time of the fan filter screen; the attenuation life prediction module 20 predicts the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life; the information acquisition module 10 acquires the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time in the current environment state; the decay life prediction module 20 predicts the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life; the remaining life determining module 30 determines the remaining life of the fan filter screen according to the first decay life and the second decay life. The residual life of the fan filter screen is accurately determined by predicting the first decay life and the second decay life under the current working state and the current environment state.
In an embodiment, the decay life prediction module 20 is further configured to determine a filtering rate of the fan filter screen according to the wind pressure information; and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life.
In an embodiment, the decay life prediction module 20 is further configured to obtain an amount of air pollutants in a unit volume on an inlet side of the fan filter screen; correspondingly, the step of predicting the attenuation life of the fan filter screen in the current working state by presetting a first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life comprises the following steps: and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the air pollutant amount to obtain a first attenuation life.
In an embodiment, the degradation life prediction module 20 is further configured to determine an air pressure difference between an inlet side and an outlet side of the fan filter screen according to the first air pressure information and the second air pressure information; and predicting the attenuation life of the fan filter screen in the current environment state according to the rated life, the air pressure difference and the second working time to obtain a second attenuation life.
In an embodiment, the decay life prediction module 20 is further configured to determine a life coefficient of the fan filter screen according to the air pressure difference; determining the environmental life of the fan filter screen in the current environmental state according to the life coefficient and the rated life; and predicting the decay life of the fan filter screen in the current environment state according to the environment life and the second working time to obtain a second decay life.
In an embodiment, the decay life prediction module 20 is further configured to determine a state life of the fan filter screen in the current working state according to the wind pressure information; correspondingly, the step of determining the remaining life of the fan filter screen according to the first decay life and the second decay life comprises: and determining the residual life of the fan filter screen according to the state life, the first decay life and the second decay life.
In one embodiment, the fan filter screen life prediction device further includes: an early warning module 40; and the early warning module 40 is used for generating warning prompt information of the blockage of the fan filter screen when the residual life is lower than a preset life threshold value.
Other embodiments or specific implementation manners of the fan filter screen life prediction device provided by the invention can refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The method for predicting the service life of the fan filter screen is characterized by comprising the following steps:
acquiring air pressure information of a fan filter screen in a current working state and first working time of the fan filter screen;
predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life;
acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side, second air pressure information of the fan filter screen at the outlet side and second working time under the current environment state;
predicting the decay life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time to obtain a second decay life;
determining the residual life of the fan filter screen according to the first decay life and the second decay life;
predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time, and obtaining a first attenuation life comprises the following steps:
determining the filtering rate of the fan filter screen according to the air pressure information;
predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life;
the method comprises the following steps of predicting the attenuation life of the fan filter screen in the current working state through a preset first filter screen attenuation algorithm according to the filtering rate and the first working time, and obtaining a first attenuation life, wherein the method further comprises the following steps of:
acquiring the air pollutant amount in a unit volume of the inlet side of the fan filter screen;
correspondingly, the step of predicting the attenuation life of the fan filter screen in the current working state by presetting a first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life comprises the following steps:
and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the air pollutant amount to obtain a first attenuation life.
2. The fan screen life prediction method of claim 1, wherein the step of predicting the decay life of the fan screen in the current operating state according to the filtering rate, the first operating time and the air pollutant amount by a preset first screen decay algorithm comprises:
determining the attenuation life of the fan filter screen according to the air pollutant amount;
and predicting the attenuation life of the fan filter screen in the current working state by a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the attenuation life to obtain a first attenuation life.
3. The method for predicting the life of the fan filter screen according to claim 1, wherein the step of predicting the decay life of the fan filter screen in the current environmental state according to the rated life, the first air pressure information, the second air pressure information and the second operating time to obtain a second decay life comprises:
determining the air pressure difference between the inlet side and the outlet side of the fan filter screen according to the first air pressure information and the second air pressure information;
and predicting the attenuation life of the fan filter screen in the current environment state according to the rated life, the air pressure difference and the second working time to obtain a second attenuation life.
4. The fan filter screen life prediction method according to claim 3, wherein the step of predicting the decay life of the fan filter screen in the current environmental state according to the rated life, the air pressure difference and the second operating time, and obtaining a second decay life comprises:
determining the service life coefficient of the fan filter screen according to the air pressure difference;
determining the environmental life of the fan filter screen in the current environmental state according to the life coefficient and the rated life;
and predicting the attenuation life of the fan filter screen in the current environment state according to the environment life and the second working time to obtain a second attenuation life.
5. The method for predicting the life of a fan screen of claim 1, wherein the step of determining the remaining life of the fan screen based on the first life decay and the second life decay is further followed by the steps of:
and when the residual life is lower than a preset life threshold value, generating alarm prompt information of the blockage of the fan filter screen.
6. The utility model provides a fan filter screen life-span prediction equipment which characterized in that, fan filter screen life-span prediction equipment includes: a memory, a processor and a fan screen life prediction program stored on the memory and executable on the processor, the fan screen life prediction program when executed by the processor implementing the steps of the fan screen life prediction method of any of claims 1 to 5.
7. A storage medium having a fan screen life prediction program stored thereon, the fan screen life prediction program when executed by a processor implementing the steps of the fan screen life prediction method of any one of claims 1 to 5.
8. The utility model provides a fan filter screen life-span prediction device which characterized in that, fan filter screen life-span prediction device includes: the device comprises an information acquisition module, an attenuation life prediction module and a residual life determination module;
the information acquisition module is used for acquiring the air pressure information of the fan filter screen in the current working state and the first working time of the fan filter screen;
the attenuation life prediction module is used for predicting the attenuation life of the fan filter screen in the current working state according to the wind pressure information and the first working time to obtain a first attenuation life;
the information acquisition module is further used for acquiring the rated service life of the fan filter screen, first air pressure information of the fan filter screen at the inlet side under the current environment state, second air pressure information at the outlet side and second working time;
the attenuation life prediction module is further configured to predict the attenuation life of the fan filter screen in the current environment state according to the rated life, the first air pressure information, the second air pressure information and the second working time, so as to obtain a second attenuation life;
the residual life determining module is used for determining the residual life of the fan filter screen according to the first decay life and the second decay life;
the attenuation life prediction module is further used for determining the filtering rate of the fan filter screen according to the air pressure information;
the attenuation life prediction module is further used for predicting the attenuation life of the fan filter screen in the current working state through a preset first filter screen attenuation algorithm according to the filtering rate and the first working time to obtain a first attenuation life;
the attenuation life prediction module is also used for acquiring the air pollutant amount in the unit volume of the inlet side of the fan filter screen;
the attenuation life prediction module is further used for predicting the attenuation life of the fan filter screen in the current working state through a preset first filter screen attenuation algorithm according to the filtering rate, the first working time and the air pollutant amount to obtain a first attenuation life.
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