CN106091342A - A kind of air quality processes unit and control method thereof - Google Patents

A kind of air quality processes unit and control method thereof Download PDF

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Publication number
CN106091342A
CN106091342A CN201610649890.8A CN201610649890A CN106091342A CN 106091342 A CN106091342 A CN 106091342A CN 201610649890 A CN201610649890 A CN 201610649890A CN 106091342 A CN106091342 A CN 106091342A
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CN
China
Prior art keywords
air
heat exchanger
temperature
duct
total
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610649890.8A
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Chinese (zh)
Inventor
李锡
蔺勇智
李春海
闫晓楼
林彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hainan Aviation Technology Investment and Development Partnership (Limited Partnership)
Original Assignee
Zehnder (shenzhen) Air Technology Co Ltd
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Publication date
Application filed by Zehnder (shenzhen) Air Technology Co Ltd filed Critical Zehnder (shenzhen) Air Technology Co Ltd
Priority to CN201610649890.8A priority Critical patent/CN106091342A/en
Publication of CN106091342A publication Critical patent/CN106091342A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F13/30Arrangement or mounting of heat-exchangers
    • 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
    • F24F11/0001Control or safety arrangements for ventilation
    • 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
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00Control inputs relating to users or occupants
    • F24F2120/10Occupancy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • 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
    • F24F11/0001Control or safety arrangements for ventilation
    • F24F2011/0002Control or safety arrangements for ventilation for admittance of outside air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/60Odour
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/64Airborne particle content
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/65Concentration of specific substances or contaminants
    • F24F2110/70Carbon dioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/10Pressure
    • F24F2140/12Heat-exchange fluid pressure
    • 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]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a kind of air quality and process unit and control method thereof, including indoor set and off-premises station, described indoor set includes cabinet and total-heat exchanger, filter assemblies, temperature-controlling module, ducting system and the control device be located in cabinet, and described control device electrically connects with described total-heat exchanger, filter assemblies, temperature-controlling module and ducting system;Described total-heat exchanger is by ducting system and indoor and outdoors air communication, and the outlet of described total-heat exchanger is by temperature-controlling module and filter assemblies and ambient air.The energy of the return air of the present invention and new wind carry out energy exchange, new wind is freezed or heats, energy in return air is recycled, save air quality and process unit refrigeration or the energy consumption of heating, the self-energy re-using indoor old air substantially is that new wind freezes or heats, and reaches the beneficial effect of the energy-conservation purpose with environmental protection.

Description

A kind of air quality processes unit and control method thereof
Technical field
The invention belongs to air-treatment technical field, especially a kind of air quality processes unit and control method thereof.
Background technology
Along with social development, people are more and more higher to the requirement of air quality, but add in industrial development, urbanization process While Kuai, air created more serious pollution, particularly PM2.5 and TVOC and exceeds standard, have become as people's extensive concern Environmental problem.TVOC is the abbreviation of all indoor organic gas materials, i.e. Volatile Organic Compound.TVOC Be three kinds affect indoor air quality pollute in affect the most serious one.TVOC refers to that under room temperature, saturated vapour pressure exceedes The Organic substance of 133.32pa, its boiling point is at 50 DEG C to 250 DEG C, presented in can evaporating at normal temperatures in air, it Toxicity, zest, carcinogenecity and special odor profiles, can affect skin and mucosa, human body is produced acute lesion.Meanwhile, exist Indoor, the harmful gas such as formaldehyde, the harm causing people's health also can not be ignored, healthy in order to ensure, a lot of families Begin with air cleaning facility, purify the air of a room.Existing air cleaning facility is all individually to be put in indoor, passes through Interior Space Gas circulates the air in continuous clean room.Indoor temperature is the most separately needed to be controlled regulation by air-conditioning equipment, And make room air and external environment condition carry out outer circulation.And in order to make the air of indoor and outdoor air swap, it is achieved Outside is the most distinguished and the most admirable to be led to indoor and is replaced indoor air, and indoor also need to install new wind devices.Therefore, same place In in order to reach indoor air purification, temperature regulation and fresh air function need multiple corresponding equipment is installed simultaneously, not only take up an area Area is big, waste resource, use cost are high, and the most various equipment are required for individually being controlled, in-convenience in use, and cannot be real Existing sequence cooperating, causes the process of room air to be unable to reach preferable effect.
The patent of invention " the new blower fan of a kind of band temperature compensation function " of Publication No. CN104613547A provides one Indoor air temperature can be adjusted, purify air and introduce the new blower fan of new wind, but, this new blower fan uses outdoor new wind Temperature regulation and purified treatment is carried out with indoor return air again after directly mixing.Owing to the new wind in outdoor cannot absorb from indoor return air Energy carries out lowering the temperature or heating up so that new blower fan consumes substantial amounts of electric energy and freezes new wind or heat, and adds energy consumption, and And owing to the air quantity of return air is big, muddy return air is carried out substantial amounts of filtration, adds the load of fillter section, shorten filtration dress In the service life put, meanwhile, air quantity and the ratio of new wind are little, reduce freshness and the quality of room air.
Summary of the invention
It is an object of the invention to solve in existing same place to reach indoor air purification, temperature regulation and new wind Function needs to install multiple corresponding equipment simultaneously, and not only floor space is big, waste resource, use cost are high, the most various sets For being required for individually being controlled, in-convenience in use, and orderly cooperating cannot be realized, the process causing room air cannot The problem reaching preferable effect, it is provided that the sky that a kind of functional diversities, Function in Order coordinate, work efficiency is high and reliable and stable Gas quality processes unit and control method thereof.
The purpose of the present invention can reach by the following technical solutions:
A kind of air quality processes unit, and including indoor set and off-premises station, described indoor set includes cabinet and is located at cabinet In total-heat exchanger, filter assemblies, temperature-controlling module, ducting system and control device, described control device with described entirely Heat exchanger, filter assemblies, temperature-controlling module and ducting system electrical connection;Described total-heat exchanger passes through ducting system and room In connect with outdoor air, the outlet of described total-heat exchanger is by temperature-controlling module and filter assemblies and room air company Logical;
Described ducting system includes return air duct, fresh air pipeline, air supply duct and exhaust duct, entering of described return air duct Mouth and ambient air, the outlet of described return air duct is connected with described exhaust duct by total-heat exchanger, described air draft Pipeline connects with outdoor air, air draft circulation exchange inside and outside forming chamber;The entrance of described fresh air pipeline and outdoor air communication, The outlet of described fresh air pipeline is by total-heat exchanger, filter assemblies and air supply duct and ambient air, inside and outside forming chamber New wind circulation exchange.
As the preferred scheme of one, the outlet of described total-heat exchanger is additionally provided with humidifier assembly, described return air duct Outlet connect with the entrance of described total-heat exchanger, the outlet of described total-heat exchanger passes sequentially through temperature-controlling module, mistake Filter assembly, humidifier assembly and air supply duct and ambient air, air circulation loop in forming chamber.
As the preferred scheme of one, the entrance of described return air duct and ambient air, going out of described return air duct Mouthful connect with the entrance of described total-heat exchanger, the outlet of described total-heat exchanger by temperature-controlling module, filter assemblies and Air supply duct and ambient air, air circulation loop in forming chamber;Exhaust duct is passed through in the outlet of described total-heat exchanger Connect with outdoor air, air draft circulation exchange inside and outside forming chamber;The entrance of described fresh air pipeline and outdoor air communication, described The outlet of fresh air pipeline connects with the entrance of described total-heat exchanger, and the outlet of described total-heat exchanger is by filter assemblies and send Wind pipeline and ambient air, new wind circulation exchange inside and outside forming chamber.
Further, described filter assemblies includes vaporizer, high efficiency particulate air filter and the active carbon filter being sequentially connected with, institute State vaporizer and described total-heat exchanger outlet, described active carbon filter and described air supply duct and described room air Connection.
Further, described return air duct, air supply duct and exhaust duct are serially connected with return air fan, breeze fan respectively And exhaust fan, described return air fan, breeze fan and exhaust fan electrically connect with described control device.
As the preferred scheme of one, described return air duct is provided with temperature sensor, TVOC concentration sensor, PM2.5 Sensor and CO2Concentration sensor, described high efficiency particulate air filter is provided with differential pressure pickup, and described cabinet is provided with air pressure sensing Device, described temperature sensor, TVOC concentration sensor, PM2.5 sensor, CO2Concentration sensor, differential pressure pickup and air pressure transmission The outfan of sensor is connected with the input of described control device.
Further, described return air duct and fresh air pipeline are respectively equipped with return air switch valve and new wind switch valve.
As the preferred scheme of one, the entrance of described return air duct and fresh air pipeline is provided with primary filter.
As the preferred scheme of one, described control device is single-chip microcomputer or PLC.
A kind of air quality process unit control method, control device by temperature sensor, TVOC concentration sensor, PM2.5 sensor, CO2Concentration sensor and baroceptor to the return air temperature of room air, air concentration of narmful substance and Atmospheric pressure value detects, and according to the data detected, output control command is to off-premises station, return air fan, breeze fan, air draft Blower fan, return air switch valve and new wind switch valve;Off-premises station control from the outlet of total-heat exchanger pass sequentially through temperature-controlling module, Filter assemblies and air supply duct also enter the temperature of air of indoor;Described return air fan controls to enter the Indoor Air of return air duct The speed of body and flow;The outlet that described breeze fan controls from total-heat exchanger passes sequentially through temperature-controlling module and filtration group The speed of the indoor gas of part and flow;Described exhaust fan controls from return air duct successively through total-heat exchanger and exhaust duct The speed of indoor gas and flow;Described new wind switch valve control outdoor air pass sequentially through fresh air pipeline, total-heat exchanger, Temperature-controlling module, filter assemblies and air supply duct also enter opening or closing of indoor air, described return air on-off valve control Room air processed passes sequentially through return air duct, total-heat exchanger, temperature-controlling module, filter assemblies and air supply duct and goes forward side by side and enter the room Opening or closing of interior air.
Further, the particular content of described control method is as follows:
1) indoor air temperature controls
1.1) if-2 < return air temperatures-design temperature < 2 degree, then device control off-premises station rotating speed is controlled constant;
1.2) return air temperature-design temperature > 2, then control device and control the faster rotational speed of off-premises station;
1.3) return air temperature-design temperature <-2, then control device and reduce the rotating speed of off-premises station;
2) outdoor air draft closed circuit controls
2.1) if-10%* sets concentration < air concentration of narmful substance-setting concentration < 10%* and sets concentration, then control It is constant that device controls exhaust fan rotating speed;
2.2) if air concentration of narmful substance-setting concentration > 10%* sets concentration, then control device and control exhaust fan Faster rotational speed;
2.3) if air concentration of narmful substance-setting concentration < 90%* sets concentration, then control device and control exhaust fan Rotating speed reduces;
3) outdoor new wind closed circuit controls
3.1) as-2 < outdoor temperatures-design temperature < 2, control device and control the closedown of return air switch valve, otherwise return air Switch valve is opened, and
3.1.1) if 3Pa < atmospheric pressure value-setting air pressure < 7Pa, then the aperture controlling the device new wind switch valve of control is constant;
3.1.2) if atmospheric pressure value-setting air pressure < 3Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 105%;
3.1.3) if atmospheric pressure value-setting air pressure > 7Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 95%.
Implement the present invention, have the advantages that
1, the total-heat exchanger of the present invention is respectively equipped with two inlet and outlets, one of them import by return air duct with Indoor connection, another import is connected with outdoor by fresh air pipeline;And one of them outlet passes sequentially through temperature-controlling module Connect with air supply duct with filter assemblies, thus and ambient air, another outlet is connected with outdoor by exhaust duct. Operationally, return air and new wind enter total-heat exchanger from return air duct and fresh air pipeline respectively, the energy of return air and new wind Carry out energy exchange, new wind is freezed or heats, the energy in return air is recycled, has saved at air quality Reason unit refrigeration or the energy consumption of heating.Return air after energy exchange is the most directly discharged to outdoor by exhaust duct, and obtains New wind after energy then passes sequentially through temperature-controlling module, filter assemblies and air supply duct and delivers to indoor, so that indoor Old air is all discharged outdoor, it is achieved while all-fresh air updates and supplements, re-use indoor old air substantially Self-energy is that new wind freezes or heats, and reaches energy-conservation and environmental protection purpose.
2, the present invention uses control device by controlling filter assemblies, temperature-controlling module and ducting system in an orderly manner to room Inside carry out temperature control, air cleaning and air chamber outer circulation to control, mutually coordinated work between each function, it is achieved to indoor Air carries out temperature, purification and the process of new wind, solves in existing same place to reach indoor air purification, temperature tune Joint and fresh air function need to install multiple corresponding equipment simultaneously, and not only floor space is big, waste resource, use cost are high, with Time various equipment be required for individually being controlled, in-convenience in use, and orderly cooperating cannot be realized, cause room air Process the problem of preferable effect of being unable to reach, there is functional diversities, Function in Order coordinates, work efficiency is high and reliable and stable Feature.
3, the quality of room air is detected by the control method of the present invention by multiple sensors, and by PLC or Single-chip microcomputer output control command controls return air fan, exhaust fan, breeze fan, return air switch valve and the work of new wind switch valve State, return air, air-supply, new wind, air draft and purification to room air are controlled in an orderly manner, make mutually to assist between each function Adjust work, it is achieved the renewal to room air is replaced, and improves the quality of room air, there is Function in Order and coordinate, work and imitate The feature that rate is high and reliable and stable.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of air-treatment unit of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on this Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise Execute example, broadly fall into the scope of protection of the invention.
Embodiment 1
Seeing Fig. 1, the present embodiment relates to a kind of air quality and processes unit, including indoor set 1 and off-premises station, described indoor Machine 1 includes cabinet 11 and the total-heat exchanger 12 being located in cabinet 11, filter assemblies 13, temperature-controlling module 14, ducting system With control device, described control device and described total-heat exchanger 12, filter assemblies 13, temperature-controlling module 14 and ducting system Electrical connection;Described total-heat exchanger 12 is by ducting system and indoor and outdoors air communication, going out of described total-heat exchanger 12 Mouth is by temperature-controlling module 14 and filter assemblies 13 and ambient air.
Described ducting system includes return air duct, fresh air pipeline, air supply duct and exhaust duct, entering of described return air duct Mouth and ambient air, the outlet of described return air duct is connected with described exhaust duct by total-heat exchanger 12, described row Wind pipeline connects with outdoor air, air draft circulation exchange inside and outside forming chamber;The entrance of described fresh air pipeline is with outdoor air even Logical, the outlet of described fresh air pipeline, by total-heat exchanger 12, filter assemblies 13 and air supply duct and ambient air, is formed The circulation exchange of indoor and outdoor new wind.It is provided with between described outdoor air draft closed circuit and outdoor new wind closed circuit for preventing from going here and there wind Dividing plate 2, described control device is single-chip microcomputer or PLC.
This total-heat exchanger 12 is respectively equipped with two inlet and outlets, and one of them import is connected with indoor by return air duct Logical, another import is connected with outdoor by fresh air pipeline;And one of them outlet passes sequentially through temperature-controlling module 14 and mistake Filter assembly 13 connects with air supply duct, thus and ambient air, another outlet is connected with outdoor by exhaust duct.? During work, return air and new wind enter total-heat exchanger 12 from return air duct and fresh air pipeline respectively, the energy of return air and new wind Carry out energy exchange, new wind is freezed or heats, the energy in return air is recycled, has saved at air quality Reason unit refrigeration or the energy consumption of heating.Return air after energy exchange is the most directly discharged to outdoor by exhaust duct, and obtains New wind after energy then passes sequentially through temperature-controlling module 14, filter assemblies 13 and air supply duct and delivers to indoor, so that room Interior old air is all discharged outdoor, it is achieved while all-fresh air updates and supplements, re-use indoor old sky substantially The self-energy of gas is that new wind freezes or heats, and reaches energy-conservation and environmental protection purpose.
Present treatment unit uses control device orderly by controlling filter assemblies 13, temperature-controlling module 14 and ducting system Ground carries out temperature control, air cleaning and air chamber outer circulation and controls indoor, mutually coordinated work between each function, it is achieved Room air is carried out temperature, purification and the process of new wind, solve in existing same place in order to reach indoor air purification, Temperature regulation and fresh air function need to install multiple corresponding equipment simultaneously, and not only floor space is big, waste resource, use cost Height, the most various equipment are required for individually being controlled, in-convenience in use, and orderly cooperating cannot be realized, cause indoor The process of air is unable to reach the problem of preferable effect, has functional diversities, Function in Order coordinates, work efficiency is high and steady Fixed reliable feature.
Described filter assemblies 13 includes vaporizer 131, high efficiency particulate air filter 132 and the active carbon filter 133 being sequentially connected with, Described vaporizer 131 and described total-heat exchanger 12 outlet, described active carbon filter 133 and described air supply duct and institute State ambient air.Wherein active carbon filter 133 is for TVOC and CO2Gas carries out adsorption cleaning;High efficiency particulate air filter 132 for filtering less than 0.5 micron dust and float so that air was cleaned process before being passed to indoor.
Return air fan 151, breeze fan 16 and row it is serially connected with respectively on described return air duct, air supply duct and exhaust duct Wind blower fan 17, described return air fan 151, breeze fan 16 and exhaust fan 17 electrically connect with described control device.Control device By the duty controlling return air fan 151, room air sucked return air duct, and carry out energy by total-heat exchanger 12 After amount exchange, by exhaust fan in exhaust duct discharge chamber, it is achieved indoor return air flowing and the regulation of output are controlled.With Sample, control device, by the duty controlling breeze fan, outdoor air is sucked total-heat exchanger 12, new wind is receiving After the energy of return air, and deliver to indoor by temperature-controlling module 14, filter assemblies 13 and air supply duct, it is achieved new to outdoor The regulation of wind flow and output controls.
Return air switch valve 18 and new wind switch valve 19 it is respectively equipped with on described return air duct and fresh air pipeline.Control device to lead to Cross return air switch valve 18 and new wind switch valve 19 can open or close indoor and outdoor air draft circulation exchange and the new wind of indoor and outdoor circulates The circulation of exchange.
Described return air duct is provided with temperature sensor, TVOC concentration sensor, PM2.5 sensor and CO2Concentration senses Device, described high efficiency particulate air filter 132 is provided with differential pressure pickup, and described cabinet 11 is provided with baroceptor, described temperature sensing Device, TVOC concentration sensor, PM2.5 sensor, CO2The outfan of concentration sensor, differential pressure pickup and baroceptor with The input of described control device connects.Control device and obtain corresponding air themperature, quality and air pressure by each sensor Data, export corresponding control signal to each blower fan and switch valve, thus realize indoor and outdoor air draft circulation exchange and indoor and outdoor The orderly cooperating of new wind circulation exchange, forms the processing system that an entirety is orderly.
The entrance of described return air duct and fresh air pipeline is provided with primary filter 3.Roughing efficiency air filter 3 is for filtering 5 microns With dust particles, room air is carried out coarse filtration, thus improves the service life of high efficiency particulate air filter 132.
The present embodiment also provide for a kind of air quality process unit control method, control device by temperature sensor, TVOC concentration sensor, PM2.5 sensor, CO2Concentration sensor and baroceptor are to the return air temperature of room air, air Concentration of narmful substance and atmospheric pressure value detect, and according to the data detected, output control command is to off-premises station, return air wind Machine, breeze fan, exhaust fan, return air switch valve and new wind switch valve;The outlet that off-premises station controls from total-heat exchanger 12 depends on Secondary by temperature-controlling module 14, filter assemblies 13 and air supply duct and the temperature of air entering indoor;Described return air fan Control to enter speed and the flow of the indoor gas of return air duct;The outlet that described breeze fan controls from total-heat exchanger 12 depends on Secondary by temperature-controlling module 14 and the speed of the indoor gas of filter assemblies 13 and flow;Described exhaust fan controls from return air Pipeline is successively through total-heat exchanger 12 and the speed of the indoor gas of exhaust duct and flow;Described new wind switch valve controls outdoor Air passes sequentially through fresh air pipeline, total-heat exchanger 12, temperature-controlling module 14, filter assemblies 13 and air supply duct and goes forward side by side and enter the room In the opening or closing of air, described return air switch valve control room air pass sequentially through return air duct, total-heat exchanger 12, Temperature-controlling module 14, filter assemblies 13 and air supply duct also enter opening or closing of indoor air.
Control device and obtain the air themperature of room air, quality and barometric information by each sensor, then export Corresponding control signal is to each blower fan and switch valve, it is achieved the control in order of room air return air, air draft, new wind and air-supply and Cooperating, forms the processing system that an entirety is orderly, makes room air keep the fresh and requirement of high-quality.
This orderly processing system is to indoor air temperature, outdoor air draft closed circuit and the control of outdoor new wind closed circuit The concrete grammar of system is as follows:
1) indoor air temperature controls
1.1) if-2 < return air temperatures-design temperature < 2 degree, then device control off-premises station rotating speed is controlled constant;
1.2) return air temperature-design temperature > 2, then control device and control the faster rotational speed of off-premises station;
1.3) return air temperature-design temperature <-2, then control device and reduce the rotating speed of off-premises station;
2) outdoor air draft closed circuit controls
2.1) if-10%* sets concentration < air concentration of narmful substance-setting concentration < 10%* and sets concentration, then control It is constant that device controls exhaust fan 17 rotating speed;
2.2) if air concentration of narmful substance-setting concentration > 10%* sets concentration, then control device and control exhaust fan 17 faster rotational speed;
2.3) if air concentration of narmful substance-setting concentration < 90%* sets concentration, then control device and control exhaust fan 17 rotating speeds reduce;
3) outdoor new wind closed circuit controls
3.1) as-2 < outdoor temperatures-design temperature < 2, control device and control the closedown of return air switch valve, otherwise return air Switch valve is opened, and
3.1.1) if 3Pa < atmospheric pressure value-setting air pressure < 7Pa, then the aperture controlling the device new wind switch valve of control is constant;
3.1.2) if atmospheric pressure value-setting air pressure < 3Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 105%;
3.1.3) if atmospheric pressure value-setting air pressure > 7Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 95%.
The quality of room air is detected by this control method by multiple sensors, and defeated by PLC or single-chip microcomputer Go out control command and control return air fan, exhaust fan, breeze fan, return air switch valve and the duty of new wind switch valve, have Return air, air-supply, new wind, air draft and the purification of room air are controlled by sequence ground, make mutually coordinated work between each function, Realize the renewal of room air is replaced, improve the quality of room air, have Function in Order coordinate, work efficiency high and steady Fixed reliable feature.
Embodiment 2
The present embodiment is on the basis of embodiment 1, as the improvement to air quality process unit, described Total heat exchange The outlet of device 12 is additionally provided with humidifier assembly 15, and the outlet of described return air duct connects with the entrance of described total-heat exchanger 12, The outlet of described total-heat exchanger 12 passes sequentially through temperature-controlling module 14, filter assemblies 13, humidifier assembly 15 and ajutage Road and ambient air, air circulation loop in forming chamber.Can be to through temperature-controlling module by humidifier assembly 15 14 and filter assemblies 13 process after air carry out humidity dispatch deal, make the humidity flowing into indoor air from air supply duct reach Requirement to user.
Embodiment 3
The present embodiment is on the basis of embodiment 1, improves as to return air duct, the entrance of described return air duct and room Interior air communication, the outlet of described return air duct connects with the entrance of described total-heat exchanger 12, described total-heat exchanger 12 Export by temperature-controlling module 14, filter assemblies 13 and air supply duct and ambient air, form room air and loop back Road;The outlet of described total-heat exchanger 12 is connected with outdoor air by exhaust duct, air draft circulation exchange inside and outside forming chamber;Institute Stating the entrance of fresh air pipeline and outdoor air communication, the outlet of described fresh air pipeline is with the entrance of described total-heat exchanger 12 even Logical, the outlet of described total-heat exchanger 12 is by filter assemblies 13 and air supply duct and ambient air, new inside and outside forming chamber Wind circulation exchange.
This total-heat exchanger 12 is respectively equipped with two inlet and outlets, and one of them import is connected with indoor by return air duct Logical, another import is connected with outdoor by fresh air pipeline;And one of them outlet passes sequentially through temperature-controlling module 14 and mistake Filter assembly 13 connects with air supply duct, thus and ambient air, another outlet is connected with outdoor by exhaust duct.? During work, enter the return air of total-heat exchanger 12 from return air duct and fresh air pipeline and new wind carries out energy exchange, the energy of return air Amount and new wind carry out energy exchange, freeze new wind or heat, recycling the energy in return air, saved sky Gas quality processes unit refrigeration or the energy consumption of heating.Most of return air after energy exchange is directly discharged to by exhaust duct Outdoor, obtains the new wind after energy and another part return air then passes sequentially through temperature-controlling module 14, filter assemblies 13 and send Wind pipeline delivers to indoor, so that the old air major part of indoor is discharged outdoor, and fraction is by purifying more newly entering room In, and be indoor supplementary new wind, updating room air, the self-energy re-using indoor old air substantially is new wind Freeze or heat, reaching energy-conservation and environmental protection purpose.
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the power of the present invention with this Profit scope, the equivalent variations therefore made according to the claims in the present invention, still belong to the scope that the present invention is contained.

Claims (10)

1. an air quality processes unit, it is characterised in that: include indoor set and off-premises station, described indoor set include cabinet and Total-heat exchanger, filter assemblies, temperature-controlling module, ducting system and the control device being located in cabinet, described control device Electrically connect with described total-heat exchanger, filter assemblies, temperature-controlling module and ducting system;Described total-heat exchanger passes through air channel System and indoor and outdoors air communication, the outlet of described total-heat exchanger is by temperature-controlling module and filter assemblies and indoor Air communication;
Described ducting system includes return air duct, fresh air pipeline, air supply duct and exhaust duct, the entrance of described return air duct with Ambient air, the outlet of described return air duct is connected with described exhaust duct by total-heat exchanger, described exhaust duct Connect with outdoor air, air draft circulation exchange inside and outside forming chamber;The entrance of described fresh air pipeline and outdoor air communication, described The outlet of fresh air pipeline by total-heat exchanger, filter assemblies and air supply duct and ambient air, new wind inside and outside forming chamber Circulation exchange.
A kind of air quality the most according to claim 1 processes unit, it is characterised in that the outlet of described total-heat exchanger Being additionally provided with humidifier assembly, the outlet of described return air duct connects with the entrance of described total-heat exchanger, described total-heat exchanger Outlet pass sequentially through temperature-controlling module, filter assemblies, humidifier assembly and air supply duct and ambient air, forming chamber Interior air circulation loop.
A kind of air quality the most according to claim 1 processes unit, it is characterised in that the entrance of described return air duct with Ambient air, the outlet of described return air duct connects with the entrance of described total-heat exchanger, going out of described total-heat exchanger Mouth is by temperature-controlling module, filter assemblies and air supply duct and ambient air, air circulation loop in forming chamber;Described The outlet of total-heat exchanger is connected with outdoor air by exhaust duct, air draft circulation exchange inside and outside forming chamber;Described fresh wind tube The entrance in road and outdoor air communication, the outlet of described fresh air pipeline connects with the entrance of described total-heat exchanger, described entirely The outlet of heat exchanger is by filter assemblies and air supply duct and ambient air, and inside and outside forming chamber, the circulation of new wind exchanges.
A kind of air quality the most according to claim 1 processes unit, it is characterised in that described filter assemblies includes successively Vaporizer, high efficiency particulate air filter and the active carbon filter connected, described vaporizer and described total-heat exchanger outlet, described Active carbon filter and described air supply duct and described ambient air.
5. process unit according to a kind of air quality described in claim 1 or 3, it is characterised in that described return air duct, air-supply Be serially connected with return air fan, breeze fan and exhaust fan on pipeline and exhaust duct respectively, described return air fan, breeze fan and Exhaust fan electrically connects with described control device.
6. process unit according to the arbitrary described a kind of air quality of claims 1 to 3, it is characterised in that described return air duct It is provided with temperature sensor, humidity sensor, TVOC concentration sensor, PM2.5 sensor and CO2Concentration sensor, described height Effect filter is provided with differential pressure pickup, and described cabinet is provided with baroceptor, described temperature sensor, TVOC concentration sensing Device, PM2.5 sensor, CO2The outfan of concentration sensor, differential pressure pickup and baroceptor is defeated with described control device Enter end to connect.
7. process unit according to a kind of air quality described in claim 1 or 3, it is characterised in that described return air duct is with new Return air switch valve and new wind switch valve it is respectively equipped with on wind pipeline.
8. process unit according to a kind of air quality described in claim 1 or 3, it is characterised in that described return air duct is with new The entrance of wind pipeline is provided with primary filter.
9. the control method of an air quality process unit, it is characterised in that control device dense by temperature sensor, TVOC Degree sensor, PM2.5 sensor, CO2Concentration sensor and baroceptor are to the return air temperature of room air, air nuisance Matter concentration and atmospheric pressure value detect, and according to the data detected, output control command is to off-premises station, return air fan, air-supply Blower fan, exhaust fan, return air switch valve and new wind switch valve;The outlet that off-premises station controls from total-heat exchanger passes sequentially through temperature Control assembly, filter assemblies and air supply duct and enter the temperature of indoor air;Described return air fan controls to enter backwind tube The speed of the indoor gas in road and flow;The outlet that described breeze fan controls from total-heat exchanger passes sequentially through temperature control group The speed of the indoor gas of part and filter assemblies and flow;Described exhaust fan controls from return air duct successively through total-heat exchanger Speed and flow with the indoor gas of exhaust duct;Described new wind switch valve control outdoor air pass sequentially through fresh air pipeline, Total-heat exchanger, temperature-controlling module, filter assemblies and air supply duct also enter opening or closing of indoor air, described time Wind switch valve controls room air and passes sequentially through return air duct, total-heat exchanger, temperature-controlling module, filter assemblies and ajutage Road also enters opening or closing of indoor air.
A kind of air quality the most according to claim 9 processes the control method of unit, it is characterised in that described control The particular content of method is as follows:
1) indoor air temperature controls
1.1) if-2 < return air temperatures-design temperature < 2 degree, then device control off-premises station rotating speed is controlled constant;
1.2) return air temperature-design temperature > 2, then control device and control the faster rotational speed of off-premises station;
1.3) return air temperature-design temperature <-2, then control device and reduce the rotating speed of off-premises station;
2) outdoor air draft closed circuit controls
2.1) if-10%* sets concentration < air concentration of narmful substance-setting concentration < 10%* and sets concentration, then device is controlled Control exhaust fan rotating speed constant;
2.2) if air concentration of narmful substance-setting concentration > 10%* sets concentration, then control device and control exhaust fan rotating speed Accelerate;
2.3) if air concentration of narmful substance-setting concentration < 90%* sets concentration, then control device and control exhaust fan rotating speed Reduce;
3) outdoor new wind closed circuit controls
3.1) as-2 < outdoor temperatures-design temperature < 2, control device and control the closedown of return air switch valve, otherwise return air switch Valve is opened, and
3.1.1) if 3Pa < atmospheric pressure value-setting air pressure < 7Pa, then the aperture controlling the device new wind switch valve of control is constant;
3.1.2) if atmospheric pressure value-setting air pressure < 3Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 105%;
3.1.3) if atmospheric pressure value-setting air pressure > 7Pa, then the aperture controlling the device new wind switch valve of control is existing aperture 95%.
CN201610649890.8A 2016-08-09 2016-08-09 A kind of air quality processes unit and control method thereof Pending CN106091342A (en)

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CN106678992A (en) * 2017-03-08 2017-05-17 孙金鹏 Intelligent fresh and return air volume adjusting type air purifier
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CN110454931A (en) * 2018-05-08 2019-11-15 厦门圣诚净化工程有限公司 Air-conditioner control system

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