CN110864389A - Photovoltaic cloud and mist air conditioning system - Google Patents

Photovoltaic cloud and mist air conditioning system Download PDF

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Publication number
CN110864389A
CN110864389A CN201911194317.2A CN201911194317A CN110864389A CN 110864389 A CN110864389 A CN 110864389A CN 201911194317 A CN201911194317 A CN 201911194317A CN 110864389 A CN110864389 A CN 110864389A
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China
Prior art keywords
module
atomization
cloud
atomizing
humidity
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CN201911194317.2A
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Chinese (zh)
Inventor
董海鹰
张凯
王怀江
代爽
王芸芸
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Lanzhou Beite Environmental Protection And Energy Saving Technology Co Ltd
Lanzhou Jiaotong University
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Lanzhou Beite Environmental Protection And Energy Saving Technology Co Ltd
Lanzhou Jiaotong University
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Priority to CN201911194317.2A priority Critical patent/CN110864389A/en
Publication of CN110864389A publication Critical patent/CN110864389A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/0008Control or safety arrangements for air-humidification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46Improving electric energy efficiency or saving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56Remote control
    • F24F11/58Remote control using Internet communication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00Air-humidification, e.g. cooling by humidification
    • F24F6/12Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • F24F2005/0064Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
    • F24F2005/0067Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • F24F2013/247Active noise-suppression
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54Free-cooling systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Human Computer Interaction (AREA)
  • Sustainable Energy (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A photovoltaic cloud and mist air conditioning system mainly comprises a photovoltaic power module, an atomizing module and a main controller module; the photovoltaic power supply module is powered by a solar power generation system and provides required electric energy for the atomization module and the main controller module; the main controller module calculates the temperature, humidity and illuminance of a target environment detected by the sensor in real time and the water level parameter of the atomization tank in the atomization module, controls the atomization module to atomize water into small liquid particles of 1-10 microns, and conveys the small liquid particles to an outdoor environment through the mist conveying pipeline. The invention does not generate harmful substances in the working process of the whole machine, can realize real-time monitoring of the temperature, humidity and illuminance parameters of the current environment, has the function of automatic water adding, realizes full-automatic control of the working process of the equipment, and has the characteristics of low energy consumption, low noise, low operation cost, high control precision, adoption of green energy, rapid humidification, large humidification range, high stability and the like.

Description

Photovoltaic cloud and mist air conditioning system
Technical Field
The invention relates to the field of outdoor cooling and humidifying, in particular to a photovoltaic cloud air-conditioning system.
Background
The development of the existing air conditioner mainly aims at the high-humidity and high-heat environment in the south, is suitable for indoor use, has high energy consumption, and is not suitable for the low-pressure environment in the dry courtyard in the north. In terms of health, air drying damages the mucous membrane of the respiratory system, and viruses such as cold easily invade the human body. In the aspect of comfort, the evaporation capacity of water in the body is increased when air is dried, the living environment is comfortable, the basic requirement of people for good life is met, along with the social development and the continuous improvement of the living quality of people, the requirement of northern areas of China on air conditioning equipment is increased day by day, the atomizing and humidifying equipment adopting the evaporation and heat absorption principle is more economical and environment-friendly, the temperature and the humidity of local environment can be reduced, the dryness of skin is relieved, and various respiratory system diseases are prevented from being induced. When the air humidity is proper, germs are difficult to spread, the air humidity is beneficial to human health, and the air humidity is more suitable for the northern courtyard environment.
The cooling and humidifying mode of the common evaporation heat absorption principle comprises wet film cooling and humidifying, high-pressure spray cooling and humidifying, air-water mixing cooling and humidifying, ultrasonic atomization cooling and humidifying and the like, wherein the principle of the wet film cooling and humidifying is as follows: water permeates downwards along the wet film material under the action of gravity, and the water is absorbed by the wet film material to form a uniform water film; when dry air passes through the wet film material, water molecules fully absorb heat in the air to be vaporized and evaporated, so that the humidity of the air is increased, and moist air is formed. The humidity of the air is increased to reduce the temperature, but the baking value of the air is kept unchanged; but it has the disadvantages of low cooling and humidifying efficiency, large water consumption, poor control precision, easy germ breeding in water circulation use, complex equipment maintenance and the like. The high-pressure spray cooling and humidifying utilizes equipment such as a pump and the like to pressurize water to about 5bar, and the water mist is formed by spraying of a spray head, so that the purposes of cooling and humidifying are achieved by heat and moisture exchange between air and water, the cooling and humidifying efficiency is low, the water consumption is high, and the spraying equipment is easy to scale and block. The steam-water mixing cooling humidification utilizes compressed air and a special nozzle to reduce water and atomize water into micro particles, and then the micro particles are sprayed out to achieve the humidification effect; the initial investment of the equipment is high, a dry oil-free compressed air source needs to be equipped, and the popularization is difficult. The ultrasonic atomization cooling humidification utilizes the inherent ultrasonic oscillation characteristics of piezoelectric ceramics, generates resonance with the inherent oscillation frequency of the piezoelectric ceramics through a certain oscillation circuit means, can directly atomize liquid contacting with the piezoelectric ceramics into tiny particles of 1-10 mu m, has high humidification speed, obvious local temperature change, basically no maintenance, reasonable equipment price and easy popularization.
Although common spraying equipment such as a sprinkler, a building spray dust remover and the like can achieve the functions of dust suppression, temperature reduction and humidification in outdoor application, the common spraying equipment is high in energy consumption and cost, easy to cause water accumulation in road buildings, inconvenient for people to go out and lack of intelligent control operation.
Disclosure of Invention
The invention provides a photovoltaic cloud and mist air conditioning system, which adopts photovoltaic energy and an intelligent controller to drive ultrasonic atomization equipment to realize the purpose of outdoor cooling and humidifying operation.
The technical scheme adopted by the invention is as follows:
a photovoltaic cloud and mist air conditioning system mainly comprises a photovoltaic power module, an atomizing module and a main controller module; the photovoltaic power supply module is powered by a solar power generation system and provides required electric energy for the atomization module and the main controller module; the main controller module calculates the temperature, humidity and illuminance of a target environment detected by the sensor in real time and the water level parameter of the atomization tank in the atomization module, controls the atomization module to atomize water into small liquid particles of 1-10 microns, and conveys the small liquid particles to an outdoor environment through the mist conveying pipeline.
The atomization module comprises an atomization box, a liquid level sensor is arranged in the atomization box and transmits a water level signal to the main controller module, and the main controller module controls the opening and closing of the water inlet electromagnetic valve through a relay A according to the water level signal; the atomizing box is internally provided with an ultrasonic atomizing plate and a fan, and the main controller module controls the ultrasonic atomizing plate and the fan to work through a relay B and a relay C.
The liquid level sensor comprises a high liquid level sensor A and a low liquid level sensor B.
The main controller module comprises a digital main control module, an output control module, a communication module and a display module; the digital main control module comprises a power supply module and a minimum system module; the output control module comprises an atomization plate drive circuit, a fan drive circuit and an electromagnetic valve drive circuit; the communication module comprises a temperature, humidity and illumination data acquisition module and a liquid level data acquisition module; a temperature and humidity illumination data acquisition module and a liquid level data acquisition module in the communication module acquire target environment temperature and humidity, illumination intensity and water level data in a water tank and transmit the data to a minimum system module in the display module and the digital main control module through a temperature and humidity illumination integrated sensor arranged in a detected environment and a liquid level sensor arranged in an atomization box, and the display module displays real-time data on an OLED display screen; the data transmitted to the minimum system module is processed and judges whether the current temperature and humidity are in a normal range, if the current temperature and humidity are higher than the preset illuminance and the preset temperature, the atomization plate driving circuit of the output control module is utilized to carry out humidification and cooling operation, at the moment, the liquid level acquisition module in the communication module transmits liquid level information to the minimum system module and compares whether the liquid level meets the starting condition of the atomization plate, and if the liquid level information meets the starting condition, the result is transmitted to the electromagnetic valve driving circuit and the fan driving circuit of the output control module to start working; if the water level does not meet the starting condition of the atomization plate, the minimum system module, namely the single chip microcomputer, transmits the result to the display module to display and alarm, and the atomization plate and the fan are turned off to stop working.
The number of the atomizing plates in the atomizing module is two; the control of the atomization amount comprises two modes:
in the first mode, if the cloud and mist air conditioner is set to work for four hours, the working time of 1-2-1 is adopted, namely one atomizing plate is started to work within one hour after the cloud and mist air conditioner starts to work, the atomizing amount is 7kg/h, two atomizing plates are started to work simultaneously within two hours after the cloud and mist air conditioner starts to work within one hour, the atomizing amount is 14kg/h, one atomizing plate is started to work within the last hour, and the atomizing amount is 7 kg/h;
in the second mode, only through the adjustment of a working environment, the sensor transmits the acquired information to the main controller module, the acquired information is compared with the preset environment temperature, and when the target environment temperature is 25-26 ℃ and the illuminance is in the range of 100000LUX, only one atomization plate works; when the target ambient temperature is higher than 26 ℃ and the illuminance is in the range of 166821LUX, the two atomization plates work simultaneously.
The communication module comprises a Bluetooth module, real-time butt joint is achieved between the user mobile phone APP and the cloud and mist air conditioner through the Bluetooth module, and the working mode of the cloud and mist air conditioner system can be controlled in real time.
The invention takes an independent photovoltaic power generation system as a power supply of a cloud and fog air conditioner, utilizes a sensor and an artificial intelligence system, applies an ultrasonic atomization cooling mode, ensures that the noise is below 36dB during operation, atomizes water into small liquid particles with the particle size of 1-10 mu m, conveys the small liquid particles to a target environment through a fog conveying pipeline, absorbs the heat of outdoor local environment according to the evaporation and heat absorption principle, and performs the operations of isenthalpic cooling and humidifying on the air of an outdoor courtyard.
In the equipment operation process, by humiture and illuminance and the atomizing case water level parameter of sensor real-time detection target environment, through main control chip (STM 32F103C8T 6) calculation processing, according to presetting the condition or user self selection and come the definite working mode for control is more accurate, sensitive, adopts advanced human-computer interaction mode: select to show real-time temperature, humidity with the OLED display screen on main control unit, design bluetooth module, control and key control selects the mode of cloud and fog air conditioner through cell-phone APP, realizes automatic control and user autonomous control, saves time and saves worry.
The invention does not generate harmful substances in the working process of the whole machine, can realize real-time monitoring of the temperature, humidity and illuminance parameters of the current environment, has the function of automatic water adding, realizes full-automatic control of the working process of the equipment, and has the characteristics of low energy consumption, low noise, low operation cost, high control precision, adoption of green energy, rapid humidification, large humidification range, high stability and the like.
Drawings
FIG. 1 is a schematic view of an assembled block diagram of the present invention;
FIG. 2 is a block diagram of the overall architecture of the present invention;
FIG. 3 is a disassembled view of the atomizing module of the present invention;
reference numbers in the figures: 1-water outlet, 2-atomization plate, 3-overflow port, 4-water inlet, 5-liquid level sensor, 6-electromagnetic valve, 7-fog outlet pipe, 8-waterproof fan
FIG. 4 is a diagram of the hardware architecture of the host controller of the present invention;
fig. 5 is a main flow chart of the control system of the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
The cloud air conditioner is an industrial device which realizes the efficacy of the traditional air conditioner. The air conditioner is applied to courtyards in rural areas in the north, can achieve the effect of cooling and humidifying the courtyards, and eliminates the limitation that the traditional air conditioner is generally used indoors. The cloud and mist air conditioner is characterized in that the whole building is used as a reference system for dynamic energy change and control, dry mist (cloud in nature) with the size of 5-15 mu m below is sprayed outside the building by utilizing an ultrasonic atomization principle, and the temperature and the humidity of the environment where the whole building is located are adjusted according to an evaporation and heat absorption principle to purify air. The whole system has low energy consumption, does not generate harmful substances, and has the characteristics of high control precision, rapid humidification, wide range, high stability and the like. In the prior art, the phenomenon of water vapor with particles of less than 5-15 mu m is called cloud mist.
Referring to fig. 1, a photovoltaic cloud and mist air conditioning system mainly comprises a photovoltaic power module, an atomizing module and a main controller module; the photovoltaic power supply module is powered by a solar power generation system and provides required electric energy for the atomization module and the main controller module; the main controller module calculates the temperature, humidity and illuminance of a target environment detected by the sensor in real time and the water level parameter of the atomization tank in the atomization module, controls the atomization module to atomize water into small liquid particles of 1-10 microns, and conveys the small liquid particles to an outdoor environment through the mist conveying pipeline. The ultrasonic atomization adopts the prior art, and the principle is that the inherent ultrasonic oscillation characteristics of piezoelectric ceramics are utilized, and resonance is generated between the inherent oscillation frequency of the piezoelectric ceramics and a certain oscillation circuit means, so that liquid contacting with the piezoelectric ceramics can be directly atomized into tiny particles of 1-10 mu m.
The following sub-modules are specifically described.
The photovoltaic power module is powered by a solar power generation system and comprises electric energy required by the operation of the whole machine and electric energy required by the driving of each module.
Referring to fig. 3, the atomizing module includes the atomizing case, one side is provided with level sensor 5 in this atomizing incasement, divide into high level sensor A and low level sensor B, the atomizing incasement central part is big is through atomizing board support mounting ultrasonic atomization board 2, one side of this ultrasonic atomization board 2 is equipped with water inlet 4 and gap 3, solenoid valve 6 is installed on the inlet channel of atomizing case, the top installation water proof fan 8 of atomizing case for accelerate the speed that the fog flows in and out the fog pipe from the fog pipe, improve humidification efficiency, the protection incasement component does not receive the long-pending moist influence that stays of fog, prevent fog backward flow quick-witted case. A fog conveying pipe 7 is arranged below the waterproof fan 8, a fog outlet pipe is arranged at the outer top of the atomization box and is communicated with the fog conveying pipe 7, and a water outlet 1 is arranged on the bottom plate of the atomization box.
The mist conveying pipe 7 adopts a PVC pipe and a PVC elbow with the diameter of 110mm and is used for connecting an atomizing device and guiding out the mist generated by the atomizing device.
A mist outlet pipe: and the pipeline is a PVC pipeline with the diameter of 75mm, and the water mist transmitted by the mist transmission pipe is discharged to the external environment.
Atomizing: external tap water enters the atomization box through a water pipeline, the temperature and humidity and illumination integrated sensor and the liquid level sensor collect the temperature and humidity of a target environment, the illumination intensity and water level data in the water tank and transmit the data to the main controller, and whether the atomization module is started or not is judged after the data is compared with a preset value. If the atomization module is started, the atomization plate driving circuit and the fan driving circuit start to work to drive the atomization plate to generate water mist, and the water mist enters a target environment through the mist transmission pipeline to achieve the purposes of cooling and humidifying the courtyard.
Referring to fig. 4 and 5, the main controller module is the brain of the cloud and mist air conditioner, is the core of the whole control system, and mainly completes acquisition and processing of external environment temperature and humidity, illumination and water tank liquid level signals in the atomization box. The main controller module adopts an STM32F103C8T6 singlechip as a main control chip, and has the main functions of carrying out operation processing on information acquired by the sensor and controlling peripheral equipment to work; the OLED display module and the Bluetooth module provide a man-machine interaction mode; the clock module provides reference and timing setting for program operation; the sensors for collecting the temperature, humidity and illumination of the external environment and the liquid level data of the water tank are a temperature, humidity and illumination integrated sensor and a liquid level sensor, and provide feedback information for the control of the atomization plate, the waterproof fan and the electromagnetic valve by the main controller.
The liquid level information refers to information collected by a high liquid level sensor and a low liquid level sensor which are arranged in a water tank in the atomization box, the main control chip judges the liquid level condition in the water tank from the information and controls the liquid level condition in time, namely, the power supply of the atomization plate and the waterproof fan is cut off and the normally closed electromagnetic valve is opened to add water to the water tank when the water level is low, and the electromagnetic valve is in a normally closed state when the water level is high and stops the water adding operation.
The power supply voltage stabilizing circuit of the main controller comprises two paths of voltage stabilizing circuits of DC12V-5V, DC5V-3.3V, and the two paths of voltage stabilizing circuits respectively convert DC12V provided by a photovoltaic power supply and control panel working voltage DC5V into voltages required by each module in a system.
After the design, the main control chip needs to run the programmed program to control each module of the cloud air conditioner to work, namely, to perform information acquisition and processing and peripheral device control. And as for the design of the main program of the cloud and mist air conditioner, the modular design is adopted, so that the expansion and the reference are facilitated.
The working process of the invention is as follows:
the cloud air conditioner main controller chip adopts an STM32F103C8T6 singlechip.
① Main control process of cloud air conditioner, after power on, initialization and fault detection, temperature, humidity and illumination sensor will collect the temperature, humidity and illumination in the current range and display them to the OLED screen of the display module, after the single chip processor of the main controller processes and judges if the current temperature and humidity are in the normal range, if higher than the preset illumination and preset temperature, the humidification and cooling will be performed, in order to prevent humidification without water, before the atomization module is started, the liquid level in the water tank needs to be checked, if the liquid level is enough, the humidification will be performed directly, if the water shortage display alarm will turn off the atomization plate and waterproof fan, when the liquid level in the water tank is normal, the humidification and cooling will be performed, the humidification degree and the liquid level in the water tank will be monitored in real time in the humidification and cooling process, when the environment reaches the preset range, the atomization plate and waterproof fan will be turned off, the humidification and cooling will be stopped, the control flow is as shown in FIG. 5.
② the water level control process of the cloud air conditioner comprises operating the electromagnetic drive circuit when the low level liquid level sensor detects that the liquid level of the atomization box is lower than the alarm value or at the critical water level, opening the electromagnetic valve, and injecting tap water into the atomization box through the pipeline, and stopping the electromagnetic drive circuit when the high level sensor detects that the injection water level reaches the critical water level or the working water level.
③ the on-off control process of the relay in the cloud air conditioner is that the liquid level sensor transmits the water level signal of the atomization box to the main controller, the main controller controls the state of the relay A, when the water level is lower than the preset water level, the relay A is conducted, the electromagnetic valve is in the normally open state, the external tap water enters the water tank through the pipeline, when the water level of the water tank is in the critical or normal working water level, the relay A is turned off, the electromagnetic valve is in the normally closed state, at this time, the relay B and the relay C are conducted, and the atomization plate and the waterproof fan are respectively controlled to work, the block diagram.
④ atomization gear adjustment (fog quantity control), wherein the fog quantity control is controlled by controlling the number of atomization plates which are put into operation, the single plate atomization specification of the atomization plates is 7kg/h, the cloud and fog air conditioner atomization module adopts two atomization plates, and the fog quantity control has two modes:
in the first mode, if the cloud and mist air conditioner is set to work for four hours, the working time of 1-2-1 is adopted, namely one atomizing plate is started to work within one hour after the cloud and mist air conditioner starts to work, the atomizing amount is 7kg/h, two atomizing plates are started to work simultaneously within two hours after the cloud and mist air conditioner starts to work within one hour, the atomizing amount is 14kg/h, one atomizing plate is started to work within the last hour, and the atomizing amount is 7 kg/h.
In the second mode, only through the adjustment of a working environment, the sensor transmits the acquired information to the master control, the acquired information is compared with the preset environment temperature, and when the target environment temperature is 25-26 ℃ and the illuminance is in the range of 100000LUX, only one atomization plate works; when the target ambient temperature is higher than 26 ℃ and the illuminance is in the range of 166821LUX, the two atomization plates work simultaneously.
⑤ communication (Bluetooth module) for realizing intellectualization, the invention adds Bluetooth chips on the atomization modules to realize better man-machine interaction mode, realizes real-time butt joint between user mobile phone APP and the cloud and fog air conditioner through Bluetooth, can control the working mode of the cloud and fog air conditioner in real time, and can observe real-time data such as temperature, humidity, illumination and water level.
In summary, the invention provides the following specific functions that need to be realized by the cloud and mist air conditioner:
the ultrasonic atomization technology is adopted, and the atomization precision is as follows: 1-10 μm, low energy consumption, capability of conveying generated water mist, no mechanical noise, easy replacement of an atomization plate and convenience for maintaining the whole machine in the future.
② the photovoltaic power supply is adopted to supply power to the whole machine, which is green and environment-friendly
③ can directly control the working mode of the cloud air conditioner through the mobile phone APP and monitor the real-time data
④ atomization gear position can be automatically adjusted
⑤ automatic water supply based on water level of water tank
⑥ cloud mist air conditioner is intelligentized, the temperature and the humidity of the current local environment are automatically adjusted according to the preset temperature and humidity range, the display mode of the system is four-digit display, OLED display is adopted, the temperature, the humidity and the illumination intensity of the current local environment and the working and running state of the whole machine can be accurately displayed, the temperature detection range is 0-60 ℃, the temperature measurement precision is +/-2 ℃, the humidity detection range is 20-100% RH, and the humidity measurement precision is +/-5% RH.
⑦ safety control, wherein in order to prevent the atomization equipment from working without water and generate a series of potential safety hazards, a water level monitoring part is added, two water level sensors are used to realize low water level alarm of the water tank and high water level stop water injection of the water tank respectively, the power supply of the atomization plate and the waterproof fan is automatically cut off under the low water level condition, the power supply is recovered when the water level of the water tank is normal, the water tank continues working, under the high water level condition, the electromagnetic valve for controlling the water feeding pipeline is in a normally closed state, and the water feeding system stops feeding water into the water tank.
⑧ have communication capabilities to accept commands from data devices or to communicate results to other data devices.
The efficiency calculation of the present invention illustrates:
(1) atomization module mist-out coverage area calculation
The cloud and mist air conditioner adopts isenthalpic humidification, and researches show that when the environmental relative humidity is 50-60% RH, the cloud and mist air conditioner is most beneficial to human health, the environmental relative humidity in northern China is generally lower and is about 25-45% RH, the initial working condition is set to be the environmental temperature of 20 +/-5 ℃ and the environmental relative humidity of 30 +/-5% RH by combining Lanzhou climate conditions, and the applicable area of the cloud and mist air conditioner is defined as follows according to the humidification principle, the psychrometric chart and the law of energy conservation: after the cloud and mist air conditioner works for 1 hour under the initial working condition that the temperature is 25 ℃ and the relative humidity is 30% RH, the environmental relative humidity is increased to the mist outlet coverage area corresponding to 60% RH.
The atomizing module fog covering area formula is as follows:
η -humidification conversion rate
m-amount of humidification
h-height (m) of space where cloud and mist air conditioner is located, 2.8 is taken
Rho-air Density (kg/m), generally 1.2
d 1-ambient temperature 25 ℃, humidity 30% RH, enthalpy-humidity diagram d1=4.39g/kg
d 2-ambient temperature 25 ℃, humidity 60% RH, enthalpy-humidity diagram d2=8.83g/kg
According to the data provided by the manufacturer of the atomization plate, the ultrasonic humidification efficiency is η =42.37%, the humidification quantity of the atomization plate in the invention is 14000ml after 1h, so that the theoretical value of the mist coverage area S of the atomization module is about (not counting the loss of pipelines and other factors):
S=42.37%*14000/(2.8*1.2*(8.83-4.39))=513.20㎡
formula calculation shows that the invention has large humidifying area and high utilization efficiency!
(2) Daily energy consumption calculation for cloud and mist air conditioner
Water consumption for cloud air conditioner (/ day):
according to the atomizing amount of the atomizing plate of 14kg/h, the water consumption per day is 56L calculated by the working time of 4 hours per day.
Cloud air conditioner power consumption (/ day):
the cloud and mist air conditioner atomization module is formed by selecting two atomization plates with the total power of 560w, selecting two waterproof fans with the total power of 12w and the working time of 4h, so that the daily power consumption of the cloud and mist air conditioner is about
(560+12)*4/1000=2.288
The power consumption of the cloud and fog air conditioner does not exceed 3 degrees every day.

Claims (6)

1. A photovoltaic cloud and mist air conditioning system is characterized by mainly comprising a photovoltaic power module, an atomization module and a main controller module; the photovoltaic power supply module is powered by a solar power generation system and provides required electric energy for the atomization module and the main controller module; the main controller module calculates the temperature, humidity and illuminance of a target environment detected by the sensor in real time and the water level parameter of the atomization tank in the atomization module, controls the atomization module to atomize water into small liquid particles of 1-10 microns, and conveys the small liquid particles to an outdoor environment through the mist conveying pipeline.
2. The photovoltaic cloud air-conditioning system of claim 1, wherein the atomization module comprises an atomization box, a liquid level sensor is arranged in the atomization box, the liquid level sensor transmits a water level signal to the main controller module, and the main controller module controls the opening and closing of the water inlet solenoid valve through a relay A according to the water level signal; the atomizing box is internally provided with an ultrasonic atomizing plate and a fan, and the main controller module controls the ultrasonic atomizing plate and the fan to work through a relay B and a relay C.
3. The photovoltaic cloud air-conditioning system of claim 2, wherein said level sensors comprise a high level sensor a and a low level sensor B.
4. The photovoltaic cloud air-conditioning system of claim 1, wherein the main controller module comprises a digital main control module, an output control module, a communication module and a display module; the digital main control module comprises a power supply module and a minimum system module; the output control module comprises an atomization plate drive circuit, a fan drive circuit and an electromagnetic valve drive circuit; the communication module comprises a temperature, humidity and illumination data acquisition module and a liquid level data acquisition module; a temperature and humidity illumination data acquisition module and a liquid level data acquisition module in the communication module acquire target environment temperature and humidity, illumination intensity and water level data in a water tank and transmit the data to a minimum system module in the display module and the digital main control module through a temperature and humidity illumination integrated sensor arranged in a detected environment and a liquid level sensor arranged in an atomization box, and the display module displays real-time data on an OLED display screen; the data transmitted to the minimum system module is processed and judges whether the current temperature and humidity are in a normal range, if the current temperature and humidity are higher than the preset illuminance and the preset temperature, the atomization plate driving circuit of the output control module is utilized to carry out humidification and cooling operation, at the moment, the liquid level acquisition module in the communication module transmits liquid level information to the minimum system module and compares whether the liquid level meets the starting condition of the atomization plate, and if the liquid level information meets the starting condition, the result is transmitted to the electromagnetic valve driving circuit and the fan driving circuit of the output control module to start working; if the water level does not meet the starting condition of the atomization plate, the minimum system module, namely the single chip microcomputer, transmits the result to the display module to display and alarm, and the atomization plate and the fan are turned off to stop working.
5. The photovoltaic cloud air-conditioning system of claim 4, wherein the number of atomizing plates in the atomizing module is two; the control of the atomization amount comprises two modes:
in the first mode, if the cloud and mist air conditioner is set to work for four hours, the working time of 1-2-1 is adopted, namely one atomizing plate is started to work within one hour after the cloud and mist air conditioner starts to work, the atomizing amount is 7kg/h, two atomizing plates are started to work simultaneously within two hours after the cloud and mist air conditioner starts to work within one hour, the atomizing amount is 14kg/h, one atomizing plate is started to work within the last hour, and the atomizing amount is 7 kg/h;
in the second mode, only through the adjustment of a working environment, the sensor transmits the acquired information to the main controller module, the acquired information is compared with the preset environment temperature, and when the target environment temperature is 25-26 ℃ and the illuminance is in the range of 100000LUX, only one atomization plate works; when the target ambient temperature is higher than 26 ℃ and the illuminance is in the range of 166821LUX, the two atomization plates work simultaneously.
6. The photovoltaic cloud and mist air conditioning system as claimed in claim 4, wherein the communication module comprises a Bluetooth module, and the user mobile phone APP and the cloud and mist air conditioner are in real-time butt joint through the Bluetooth module, so that the working mode of the cloud and mist air conditioning system can be controlled in real time.
CN201911194317.2A 2019-11-28 2019-11-28 Photovoltaic cloud and mist air conditioning system Pending CN110864389A (en)

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