CN106678992A - Intelligent fresh and return air volume adjusting type air purifier - Google Patents

Intelligent fresh and return air volume adjusting type air purifier Download PDF

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Publication number
CN106678992A
CN106678992A CN201710135119.3A CN201710135119A CN106678992A CN 106678992 A CN106678992 A CN 106678992A CN 201710135119 A CN201710135119 A CN 201710135119A CN 106678992 A CN106678992 A CN 106678992A
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China
Prior art keywords
air
indoor
outdoor
exhaust
fresh
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CN201710135119.3A
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Chinese (zh)
Inventor
孙金鹏
于旭波
张文哲
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Individual
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Individual
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Priority to CN201710135119.3A priority Critical patent/CN106678992A/en
Publication of CN106678992A publication Critical patent/CN106678992A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Quality & Reliability (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)

Abstract

The invention relates to an intelligent fresh and return air volume adjusting type air purifier. The intelligent fresh and return air volume adjusting type air purifier comprises a box, a fresh and return air heat exchanger, an exhaust fan, an air feeder, a controller, a primary filter and an efficient filter. The box is provided with an outdoor exhaust port, an outdoor fresh air port, an indoor air feeding port and an indoor exhaust port. The outdoor fresh air port communicates with the indoor air feeding port through an air inlet channel. The indoor exhaust port communicates with the outdoor exhaust port through an exhaust pipeline. The air inlet channel and an exhaust channel are arranged in a crossed isolation manner, and the fresh and return air heat exchanger is arranged at the intersection position of the air inlet channel and the exhaust channel. According to the signals of indoor and outdoor PM2.5 concentration, indoor CO2 concentration, the air feeding temperature, the fresh air temperature, the indoor and outdoor pressure difference and the like, a controller is used for intelligent comparison and selection, and optimized running of five work conditions of all fresh air, all return air, the minimum fresh air ratio, the minimum return air ratio and fresh and return air mixed adjustment is achieved. The indoor air exchange requirement and the air quality are guaranteed, meanwhile, the dust filtering and containing amount of all levels of filters is reduced, air treatment energy consumption is reduced, and the air feeding comfort degree is guaranteed.

Description

Newly, return air amount Intelligent adjustment formula air purifier
Technical field
The invention belongs to field of environment engineering technology, and in particular to Yi Zhongxin, return air amount Intelligent adjustment formula air purifier.
Background technology
Particulate matter is the major pollutants for affecting IAQ (indoor air quality), since 2013, " haze " phenomenon that PM2.5 causes Impact increasingly sharpens.To reduce injury of the room air pollution to human body, many people select air purifier to ensure air matter Amount, but normal air depurator is only capable of achieving indoor circulation wind filtration treatment, indoor oxygen content will be caused to reduce without fresh air supply, Affect healthy；If windowing ventilation, the higher outdoor air of dustiness enter therewith, indoor gas cleannes are destroyed.And If selecting conventional VMC (Ventilation Mechanical Control System), enough oxygen supplies and indoor air-changing requirement are no doubt can guarantee that, while indoor positive pressure is kept, Prevent door and window gap dust laden air to leak into, but as outdoor fresh air dustiness is too high, filter screen filter dust quantity too, causes to safeguard and changes Workload and expense rise, if change safeguarding not in time, will affect indoor air quality, while increasing system wind resistance and noise.
The Chinese patent of relatively advanced air cleaner, such as Publication No. CN104406243B, discloses a kind of band new The indoor pressure-fired air purifier of wind ventilatory, the depurator are provided with outdoor fresh air and indoor return air passage, by inspection Survey interior PM2.5 concentration and interior CO2Concentration, realizes the operating mode switching that fresh air is processed with return air.What this air purifier was present Defect is：First, outdoor PM2.5 real-time concentrations are not monitored and are controlled.Outdoor fresh air PM2.5 concentration was not up to standard in recent years Frequency more and more higher, only by indoor CO2Concentration there may come a time when to cause interior realizing the keying of fresh air channel unreasonable The deterioration of air quality, and increase filter screen burden；2nd, do not possess new, return air heat function of exchange, and do not account for outdoor temp and spend Impact of the high or too low fresh air to comfortableness, it is possible to cause human comfort difference and energy consumption too high；3rd, cannot realize it is new, return The function of air quantity mixed air volume Intelligent adjustment.
In sum, being badly in need of exploitation one kind at present can be according to outdoor fresh air and interior PM2.5 concentration, interior CO2Concentration, send The parameters such as air temperature, new air temperature, realize that Intelligent adjustment is new, the air purifier of return air amount, so as to reach air quality, comfortable Property and the optimized target of energy consumption.
The content of the invention
To overcome the shortcomings of common purifying device and VMC (Ventilation Mechanical Control System), it is an object of the invention to provide a kind of new, return air amount intelligence Energy adjustable type air purifier, can realize the optimal choice of air-treatment mode according to indoor and outdoor air real-time monitoring parameter, While ensureing that indoor air-changing is required, the filter dirt and dust containing capacity of filters at different levels are reduced as far as possible, while saving air-treatment Energy consumption and guarantee air-supply comfort level.
The technical solution adopted for the present invention to solve the technical problems is：Newly, return air amount Intelligent adjustment formula air purifier, Including casing, new return air heat exchanger, exhaust blower, pressure fan, controller, roughing efficiency air filter, high efficiency particulate air filter, the casing sets There are outdoor exhaust outlet, outdoor fresh air mouth, indoor air outlet, indoor exhaust wind mouth, outdoor fresh air mouth is led to by air intake with indoor air outlet Road is connected, and air intake passage includes fresh air pipeline and air supply duct, and fresh air pipeline is connected with outdoor fresh air mouth, is provided with fresh air pipeline Roughing efficiency air filter, is provided with new air-valve before roughing efficiency air filter, be provided with outdoor new in the pipeline between outdoor fresh air mouth and new air-valve Wind PM2.5 concentration sensors and fresh air temperature sensor, fresh air pipeline are connected with air supply duct by new return air heat exchanger, newly Activated carbon filtering layer and high efficiency particulate air filter are disposed with air supply duct after return air heat exchanger, after high efficiency particulate air filter Air supply duct is connected with indoor air outlet by pressure fan, is provided with wind pushing temperature sensor between indoor air outlet and pressure fan； Indoor exhaust wind mouth is connected by exhaust duct with outdoor exhaust outlet, and exhaust duct includes indoor exhaust wind pipeline and outdoor exhaust duct, Indoor exhaust wind mouth is connected with indoor exhaust wind pipeline, and indoor exhaust wind valve, the room before indoor exhaust wind valve are provided with indoor exhaust wind pipeline Indoor PM2.5 concentration sensors and interior CO are provided with interior exhaust duct2Concentration sensor, indoor exhaust wind pipeline pass through new return air Heat exchanger is connected with outdoor exhaust duct, and outdoor exhaust duct is connected with outdoor exhaust outlet by exhaust blower；On the casing Indoor and outdoor differential pressure pickup is additionally provided with, controller in casing, is additionally provided with, controller is connected with each air-valve, sensor and blower fan, controlled Device processed is also connected with DDC LCDs, and controller control object is that Electric air valve is opened and closed and aperture, blower fan start and stop and air quantity shelves Position, detection content are pressure reduction, temperature, PM2.5 concentration and CO2Concentration sensor signal etc., above content can be in DDC liquid crystals Show screen display.
Specifically, the fresh air pipeline side is connected with indoor inlet scoop, is provided between indoor inlet scoop and fresh air pipeline Indoor return air valve.
Specifically, roughing efficiency air filter differential pressure pickup is provided with the roughing efficiency air filter, be provided with efficiently at high efficiency particulate air filter Filter differential pressure sensor, roughing efficiency air filter differential pressure pickup and high efficiency particulate air filter differential pressure pickup are connected with controller.
Specifically, the air intake passage is intersected isolation and is arranged with air exhaust passage, and its intersection is provided with new return air heat exchange Device, air intake passage are mutually completely cut off with air exhaust passage.
Specifically, the pressure fan is sub-packed in respective air channel the newly downstream of return air heat exchanger with exhaust blower, and air quantity is big Little employing third gear control.
The invention has the advantages that：This depurator can be according to indoor and outdoor PM2.5 concentration, interior CO2Concentration, air-supply The input signals such as temperature, new air temperature, indoor external differential, by controller intelligently than choosing, realize all-fresh air, full return air, minimum New wind ratio, minimum air returning ratio, the optimization operation of new return air mixing five kinds of operating modes of regulation, so as to realize ensureing indoor air-changing requirement With air quality while, reduce the filter dirt and dust containing capacity of filters at different levels as far as possible, while saving air-treatment energy consumption and guarantor Card air-supply comfort level is not enough, traditional so as to solve interior oxygen-supplying amount caused by normal air depurator adopts circulated air to process Filter screen maintenance workload that VMC (Ventilation Mechanical Control System) is brought using all-fresh air purified treatment is big, and part band fresh-air ventilation function air it is net Change device only by gathering interior PM2.5 and CO2Concentration realizes the switching of new, return air, and outdoor fresh air situation is not monitored, and nothing Method reaches purification of air, processes energy consumption and the optimized problem of comfort level.
Description of the drawings
Fig. 1 is the structural representation of depurator of the present invention.
1st, casing；2nd, new return air heat exchanger；3rd, exhaust blower；4th, pressure fan；5th, outdoor exhaust outlet；6th, outdoor fresh air mouth； 7th, indoor air outlet；8th, indoor exhaust wind mouth；9th, indoor inlet scoop；10th, controller；11st, indoor exhaust wind valve；12nd, new air-valve；13、 Indoor return air valve；14th, roughing efficiency air filter；15th, activated carbon filtering layer；16th, high efficiency particulate air filter；17th, roughing efficiency air filter differential pressure pickup； 18th, high efficiency particulate air filter differential pressure pickup；19th, outdoor fresh air PM2.5 concentration sensor；20th, interior PM2.5 concentration sensors；21、 Indoor CO2Concentration sensor；22nd, wind pushing temperature sensor；23rd, fresh air temperature sensor；24th, indoor and outdoor differential pressure pickup, 25, Fresh air pipeline, 26, air supply duct, 27, indoor exhaust wind pipeline, 28, outdoor exhaust duct.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.
As shown in figure 1, new, return air amount Intelligent adjustment formula air purifier, including casing 1, new return air heat exchanger 2, row Blower fan 3, pressure fan 4, controller 10, roughing efficiency air filter 14, high efficiency particulate air filter 16, the casing 1 are provided with outdoor exhaust outlet 5, room Outer fresh wind port 6, indoor air outlet 7, indoor exhaust wind mouth 8, outdoor fresh air mouth 6 are connected by air intake passage with indoor air outlet 7, air intake Passage includes fresh air pipeline 25 and air supply duct 26, and fresh air pipeline 25 is connected with outdoor fresh air mouth 6, is provided with just in fresh air pipeline 25 Effect filter 14, is provided with new air-valve 12 before roughing efficiency air filter 14, is provided with the pipeline between outdoor fresh air mouth 6 and new air-valve 12 Outdoor fresh air PM2.5 concentration sensor 19 and fresh air temperature sensor 23, fresh air pipeline 25 pass through new return air heat exchanger 2 and send Wind pipeline 26 connects, and is disposed with activated carbon filtering layer 15 and efficient mistake in the air supply duct 26 after new return air heat exchanger 2 Filter 16, the air supply duct 26 after high efficiency particulate air filter 16 are connected with indoor air outlet 7 by pressure fan 4, indoor air outlet 7 and Wind pushing temperature sensor 22 is provided between pressure fan 4；Indoor exhaust wind mouth 8 is connected by exhaust duct with outdoor exhaust outlet 5, exhaust duct Road includes indoor exhaust wind pipeline 27 and outdoor exhaust duct 28, and indoor exhaust wind mouth 8 is connected with indoor exhaust wind pipeline 27, indoor exhaust wind Indoor exhaust wind valve 11 is provided with pipeline 27, in the indoor exhaust wind pipeline 27 before indoor exhaust wind valve 11, indoor PM2.5 concentration is provided with Sensor 20 and interior CO2Concentration sensor 21, indoor exhaust wind pipeline 27 is by new return air heat exchanger 2 and outdoor exhaust duct 28 connections, outdoor exhaust duct 28 are connected with outdoor exhaust outlet 5 by exhaust blower 3；Indoor external differential is additionally provided with the casing 1 Controller 10 is additionally provided with sensor 24, casing 1, controller 10 is connected with each air-valve, sensor and blower fan, controller 10 also with DDC LCDs connect.
Specifically, 25 side of the fresh air pipeline is connected with indoor inlet scoop 9, indoor inlet scoop 9 and fresh air pipeline 25 it Between be provided with indoor return air valve 13.
Specifically, roughing efficiency air filter differential pressure pickup 17 is provided with the roughing efficiency air filter 14, is set at high efficiency particulate air filter 16 Have high efficiency particulate air filter differential pressure pickup 18, roughing efficiency air filter differential pressure pickup 17 and high efficiency particulate air filter differential pressure pickup 18 with control Device processed 10 connects.
Specifically, the air intake passage is intersected isolation and is arranged with air exhaust passage, and its intersection is provided with new return air heat exchange Device 2, air intake passage is mutually completely cut off with air exhaust passage.
Specifically, the pressure fan 4 is sub-packed in respective air channel the newly downstream of return air heat exchanger 2, air quantity with exhaust blower 3 Size is controlled using third gear.
This depurator is capable of achieving following operating condition：
Operating mode 1：When Outdoor Air Quality is preferable, the outdoor fresh air PM2.5 concentration sensor 19 for being installed on fresh air duct is supervised Measured value PM2.5OutwardLess than design lower limit valueAnd be installed on the wind pushing temperature sensor 22 of air supply duct monitor air-supply Temperature TSendIn design ceiling valueAnd lower limit valueBetween when, using all-fresh air mode operation.
Now indoor return air valve 13 cuts out, and indoor exhaust wind valve 11 and new air-valve 12 are opened, and make outdoor fresh air Jing primarily efficient filter After the new return air heat exchanger 2+ activated carbons filtering layer 15+ high efficiency particulate air filters (HEPA) of device 14+ 16, Jing pressure fan 4 sends into interior.
The air quantity gear of pressure fan 4 is measured according to the indoor PM2.5 concentration sensors 20 being installed on indoor exhaust wind pipeline In good time concentration PM2.5It is interior, with indoor design ceiling valueAnd lower limit valueCarry out contrast regulation：Work as monitoring Concentration is higher thanWhen high-grade operation, be less thanWhen underdrive operating, between the two when middle-grade operation.Air draft 3 gear of machine and 4 chain control of pressure fan, while according to the measured value amendment of indoor and outdoor differential pressure pickup 24, when room cannot be kept It is interior with outdoor relative malleation value when, exhaust blower gear drop one grade operating, otherwise keep with pressure fan 4 with shelves operate.
Operating mode 2：When Outdoor Air Quality is preferable, the outdoor fresh air PM2.5 concentration sensor 19 for being installed on fresh air duct is supervised Measured value PM2.5OutwardLess than design lower limit valueAnd be installed on the wind pushing temperature sensor 22 of air supply duct monitor air-supply Temperature TSendIt is higher than(summer) or it is less thanWhen (winter), it is the comfortableness for ensureing wind pushing temperature, using part indoor return air With fresh air mixed processing pattern.
Now indoor return air valve 13 is adjusted with 12 aperture inverse proportion of new air-valve, while indoor exhaust wind valve 11 is according to new air-valve 12 Aperture direct proportion is adjusted, until wind pushing temperature TSendReduce paramount limit(summer) or it is increased to lower boundKeep when (winter) Current valve aperture, i.e., using " minimum air returning ratio " operating mode.
Pressure fan 4 and 3 gear regulative mode of exhaust blower are with operating mode 1.
Operating mode 3：When Outdoor Air Quality it is poor, 19 monitor value PM2.5 of outdoor fresh air PM2.5 concentration sensorOutwardHigher than height Limit valueAnd interior CO2The indoor CO of the monitoring of concentration sensor 212Concentration is not higher than indoor maximum permissible concentration CO2max When, using full return air mode operation.
Now new air-valve 12 and indoor exhaust wind valve 11 are closed, and exhaust blower 3 is simultaneously closed off, and indoor return air valve 13 is opened, and makes room Interior return air Jing activated carbons filtering layer 15+ high efficiency particulate air filters 16 (HEPA) send into interior by pressure fan 4.
With operating mode 1, exhaust blower 3 cuts out 4 gear regulative mode of pressure fan.
Operating mode 4：When 19 monitor value of outdoor fresh air PM2.5 concentration sensor is higher than ceiling valueAnd interior CO2It is dense The indoor CO of the degree monitoring of sensor 212Concentration is higher than indoor maximum permissible concentration CO2maxWhen, it is to ensure that indoor oxygen content is up to standard, adopts With part fresh air and return air mixed processing pattern.
Now indoor return air valve 13 is adjusted with 12 aperture inverse proportion of new air-valve, while indoor exhaust wind valve 11 is according to new air-valve 12 Aperture direct proportion is adjusted, until interior CO2Concentration is reduced to indoor maximum permissible concentration CO2maxWhen keep current valve aperture, i.e., Using " minimum fresh air ratio " operating mode.
Pressure fan 4 and 3 gear regulative mode of exhaust blower are with operating mode 1.
Operating mode 5：As the 19 monitor value PM2.5 of outdoor fresh air PM2.5 concentration sensor of fresh air ductOutwardBetween high and low limit When, run using new return air mixing shaping modes.
Under this kind of operating mode, new, return air mixed proportion can have two kinds of selections：A kind of is the prison according to fresh air temperature sensor 23 Measured value, calculates its deviation with indoor design temperature, and regulative mode adjusts the mixing ratio of resh air requirement and return air amount in proportion；Second Kind be withNew return air mixing ratio is adjusted for control variable.Pattern Selection can be set and be changed to the preference of air quality or energy saving according to user.
Pressure fan 4 and 3 gear regulative mode of exhaust blower are with operating mode 1.
The explanation of above operating mode refers to table 1, each pa-rameter symbols illustrated in table 2.
The main operating condition of 1 depurator of table
2 each pa-rameter symbols explanation of table
The present invention is not limited to above-mentioned embodiment, and anyone should learn that the structure made under the enlightenment of the present invention becomes Change, it is every with of the invention with same or like technical scheme, each fall within protection scope of the present invention.
The technology not described in detail of the invention, shape, construction part are known technology.

Claims (5)

1. newly, return air amount Intelligent adjustment formula air purifier, it is characterised in that including casing, new return air heat exchanger, air draft Machine, pressure fan, controller, roughing efficiency air filter, high efficiency particulate air filter, the casing are provided with outdoor exhaust outlet, outdoor fresh air mouth, interior Air outlet, indoor exhaust wind mouth, outdoor fresh air mouth connects by air intake passage with indoor air outlet, air intake passage include fresh air pipeline with Air supply duct, fresh air pipeline are connected with outdoor fresh air mouth, be provided with roughing efficiency air filter, be provided with before roughing efficiency air filter in fresh air pipeline New air-valve, is provided with outdoor fresh air PM2.5 concentration sensor in the pipeline between outdoor fresh air mouth and new air-valve and new air temperature is passed Sensor, fresh air pipeline are connected with air supply duct by new return air heat exchanger, in the air supply duct after new return air heat exchanger Activated carbon filtering layer and high efficiency particulate air filter are disposed with, the air supply duct after high efficiency particulate air filter is by pressure fan and indoor air-supply Mouth connection, is provided with wind pushing temperature sensor between indoor air outlet and pressure fan；Indoor exhaust wind mouth is with outdoor exhaust outlet by air draft Pipeline communication, exhaust duct include indoor exhaust wind pipeline and outdoor exhaust duct, and indoor exhaust wind mouth is connected with indoor exhaust wind pipeline, Indoor exhaust wind valve is provided with indoor exhaust wind pipeline, indoor PM2.5 concentration in the indoor exhaust wind pipeline before indoor exhaust wind valve, is provided with Sensor and interior CO2Concentration sensor, indoor exhaust wind pipeline are connected with outdoor exhaust duct by new return air heat exchanger, room External air exhausting tube road is connected with outdoor exhaust outlet by exhaust blower；Indoor and outdoor differential pressure pickup is additionally provided with the casing, in casing Controller is additionally provided with, controller is connected with each air-valve, sensor and blower fan, and controller is also connected with DDC LCDs.
2. as claimed in claim 1 newly, return air amount Intelligent adjustment formula air purifier, it is characterised in that the fresh air pipeline Side is connected with indoor inlet scoop, and indoor return air valve is provided between indoor inlet scoop and fresh air pipeline.
3. as claimed in claim 1 newly, return air amount Intelligent adjustment formula air purifier, it is characterised in that the primarily efficient filter Roughing efficiency air filter differential pressure pickup is provided with device, high efficiency particulate air filter differential pressure pickup, roughing efficiency air filter at high efficiency particulate air filter, is provided with Differential pressure pickup and high efficiency particulate air filter differential pressure pickup are connected with controller.
4. as claimed in claim 1 newly, return air amount Intelligent adjustment formula air purifier, it is characterised in that the air intake passage Intersect isolation to arrange with air exhaust passage, its intersection is provided with new return air heat exchanger, air intake passage and air exhaust passage mutually every Absolutely.
5. as claimed in claim 1 new, return air amount Intelligent adjustment formula air purifier, it is characterised in that the pressure fan with Exhaust blower is sub-packed in the downstream of new return air heat exchanger in respective air channel, and air force is controlled using third gear.
CN201710135119.3A 2017-03-08 2017-03-08 Intelligent fresh and return air volume adjusting type air purifier Pending CN106678992A (en)

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CN107143962A (en) * 2017-06-19 2017-09-08 嘉善玏奇电器贸易有限公司 New blower fan
CN107166693A (en) * 2017-06-15 2017-09-15 山东鑫友环保设备有限公司 A kind of indoor and outdoor air optimal change device
CN107218665A (en) * 2017-07-17 2017-09-29 西安建筑科技大学 A kind of full air-conditioning system of frequency conversion family formula fresh air purifying
CN107228428A (en) * 2017-07-17 2017-10-03 西安建筑科技大学 A kind of full air-conditioning system of family formula fresh air purifying
CN107246672A (en) * 2017-07-17 2017-10-13 西安建筑科技大学 A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district
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Application publication date: 20170517