CN108692416A - A kind of the low noise concentration combined type filter method and system of fresh air supply - Google Patents

A kind of the low noise concentration combined type filter method and system of fresh air supply Download PDF

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Publication number
CN108692416A
CN108692416A CN201810291548.4A CN201810291548A CN108692416A CN 108692416 A CN108692416 A CN 108692416A CN 201810291548 A CN201810291548 A CN 201810291548A CN 108692416 A CN108692416 A CN 108692416A
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China
Prior art keywords
air
corridor
classroom
fresh air
circulated
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CN201810291548.4A
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Chinese (zh)
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CN108692416B (en
Inventor
唐波
曹昌盛
高军
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Tongji University
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Tongji University
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Publication of CN108692416A publication Critical patent/CN108692416A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation 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
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression
    • 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)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A kind of low noise concentration combined type filter method towards classroom fresh air supply, take dual system independent operating, the combined filtration technology of outdoor fresh air filtering and the filtering of corridor circulated air, blower fan filtering babinet is positioned over corridor both ends furred ceiling or roof, classroom forms one-way gas flow with corridor, effectively control classroom and corridor particle contamination, keep good Classroom air quality.The invention also discloses the systems for realizing the method.The present invention ensures that classroom indoor air quality is not influenced by outdoor heavy fog haze in the case of teachers and students' flow of personnel by the collective effect of classroom centralization fresh air system and corridor centralization wind circulating system, ensures indoor good air quality.

Description

A kind of the low noise concentration combined type filter method and system of fresh air supply
Technical field
The invention belongs to aeration technology field, the low noise for being related to fresh air supply concentrates combined type filtration system.
Background technology
Outdoor particulate pollutant concentration is increasingly severe under domestic haze weather, and the places such as classroom, meeting room are as student Study place, Conference Room, densely populated place, fresh air demand are big;For good air quality in effective guarantee building, fresh air mistake Filter plays a crucial role.By taking classroom as an example:The usually 2 new wind turbines of setting of classroom fresh air filtering at present are new to meet classroom Wind requirement usually will make a call to 4 holes, to classroom wall knot because fresh air needs to carry out heat exchange with air draft in every classroom exterior wall Structure has certain destruction, and local decompression caused by the air draft of classroom may make outdoor haze penetrate into classroom.Meanwhile the wind of new wind turbine Machine is located in classroom, and noise is larger, has large effect to teaching.In addition, it is non-close periodically to open the door within 45 minutes for classroom Closing property space, in the case where outdoor haze is more serious, the air in corridor also has larger haze pollution, the teacher during after class For raw scope of activities not only in classroom and office, corridor is also that air quality needs the zone of action ensured, to teach at present Room fresh air filtration system has ignored the control of corridor air particles pollution mostly.The Usefulness Pair of corridor air particles contamination control Classroom endoparticle concentration control has important influence, the particle contamination of corridor area easily to penetrate into classroom space (especially under During class opens the door), corridor granule density height certainly will make classroom particle contamination control difficulty increase.
Invention content
Present invention aims at provide a kind of low noise concentration combined type mistake of the fresh air supply towards crowded place Filter system, such as can be used for solving that fresh air filtration system noise under classroom application scenarios is high, wall damage is big, outdoor The problem that haze easily penetrates into, corridor particle contamination is uncontrolled realizes classroom and corridor dual system independent operating, combined filtration Double technique guarantee overcomes the defect of aforementioned conventional classroom fresh air filtering scheme.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows:
A kind of low noise concentration combined type filtration system towards classroom fresh air supply, including classroom fresh air blast pipe, religion Room centralization new wind filter, air-air heat exchanger, corridor centralization filter, corridor circulated air blast pipe, corridor collection Chinese style circulated air ajutage, corridor circulated air pressure fan, classroom fresh air pressure fan, classroom fresh air outlet, classroom centralization are new Wind ajutage, corridor circulated air air outlet;The classroom centralization newly concentrate by wind filter, air-air heat exchanger, corridor Formula filter, corridor circulated air pressure fan, classroom fresh air blower setting are capable of hoisting loaded on corridor both ends part in a babinet Furred ceiling or concentrated setting are in teaching roof.
Further, fresh air design air flow in classroom is determined according to teachers and students' number in classroom, everyone fresh air volume is not less than 22m3/ h。
Further, the circulated air design air flow of corridor air filtering system is equal to the fresh air design wind of fresh air filtration system Amount.
Further, classroom fresh air pressure fan specification is according to the design air flow and system least favorable of classroom fresh air filtration system Loop resistance determines.
Further, corridor circulated air pressure fan specification according to the design air flow and system of corridor air filtering system least Sharp loop resistance determines.
Further, classroom fresh air filtration system and corridor circulated air filtration system are all made of step combined filtration, just imitate Filter specification is G4, and medium effeciency filter specification is F7, and difference, fresh air high efficiency filter use final stage high efficiency particulate air filter H13/H14, circulated air high efficiency filter use H11/12.The specification term is the common art-recognized meanings term of the art, end The difference of grade high efficiency particulate air filter is embodied in the difference of filtration grade.
Further, particle concentration sensor, the air-supply of corridor circulated air is arranged in corridor circulated air filtration system return air inlet Machine is opened and closed according to the feedback of particle concentration sensor.
By adopting the above scheme, the beneficial effects of the invention are as follows:
A kind of low noise concentration combined type filtration system towards classroom fresh air supply, takes outdoor new shown in the present invention Wind filters and the dual system independent operating of corridor circulated air filtering, combined filtration technology, blower fan filtering babinet are positioned over corridor two Furred ceiling or roof, classroom is held to form one-way gas flow with corridor, effectively control classroom and corridor particle contamination, keep good classroom Air quality.Concrete analysis is as follows:
(1) classroom particle contamination and corridor particle contamination synchronous control.It periodically opens the door within 45 minutes for classroom non-close Closing property space, in the case where outdoor haze is more serious, the air in corridor also has larger haze pollution, after class period teachers and students Scope of activities not only in classroom and office, corridor is also that air quality needs the zone of action ensured, at present classroom Fresh air filtration system has ignored the control of corridor air particles pollution mostly so that corridor becomes high particle contamination exposed region. In addition, the Usefulness Pair classroom endoparticle concentration control of corridor air particles contamination control has important influence, corridor area Particle contamination easily penetrate into classroom space (especially open the door after class during), corridor granule density height certainly will make classroom particle Contamination control difficulty increases.The invention is characterized in that the dual system independent operating of outdoor fresh air filtering and the filtering of corridor circulated air, Combined filtration technology can control the particle contamination of classroom and corridor area simultaneously;Effective control of corridor area particle contamination, There is positive booster action for the control of classroom particle contamination.
(2) fresh-air fan centralized control eliminates the pollution of classroom fan noise.The usually setting 2 of classroom fresh air filtering at present New wind turbine requires to meet classroom fresh air, and fresh air carries out heat exchange with air draft, and fresh-air fan and exhaust fan are all positioned over classroom Interior, wind turbine operating certainly will generate noise, influence education activities.Outdoor fresh air filtering wind turbine and corridor circulated air of the present invention Filtering wind turbine is set in a babinet, and babinet is lifted on corridor both ends part furred ceiling or concentrated setting in teaching roof, outdoor Fresh air is sent to each classroom with after heat exchange through filtering by fresh air ajutage, eliminates original dispersion fresh air filtration system wind turbine and is placed in Indoor fan noise is taught to pollute.
(3) unidirectional air supply stream technology maintains indoor micro-positive pressure, resists outdoor haze intrusion.Existing classroom fresh air filtering system System mainly uses the two-way Flow Technique of fresh air/air draft heat exchange, and local decompression easily makes outdoor haze penetrate into caused by air draft, increases Classroom particle contamination control is difficult.Outdoor fresh air filtration system of the present invention using no air draft, without return air technology, it is outdoor new Each classroom is sent directly by fresh air ajutage after wind filtering, maintains classroom micro-positive pressure, effectively completely cuts off outdoor haze and penetrates into, for religion Room particle contamination control provides safeguard.
(4) digging hole in wall is few, reduces wall body structure load-bearing risk.The usually 2 new wind turbines of setting of classroom fresh air filtering at present It is required to meet classroom fresh air, fresh air carries out heat exchange with air draft, and classroom wall need to open 4 holes, seriously affect wall body structure load-bearing. Outdoor fresh air filtration system of the present invention only need to open 1 hole in classroom wall, and fresh wind tube penetrates classroom by filtered cleaning Fresh air is sent into each classroom.Compared to original fresh air dispersing and filtering, digging hole in wall quantity of the present invention greatly reduces, and significantly reduces wall Structure load-bearing risk.
Description of the drawings
Fig. 1 is that a kind of low noise towards classroom fresh air supply of the embodiment of the present invention concentrates the whole of combined type filtration system Body schematic diagram.
Reference numeral:The new wind filter 2 of fresh air blast pipe 1, centralization, air-air heat exchanger 3, corridor centralization Filter 4, corridor circulated air blast pipe 5, corridor centralization circulated air ajutage 6, corridor circulated air pressure fan 7, fresh air air-supply Machine 8, fresh air outlet 9, centralized fresh air ajutage 10, corridor circulated air air outlet 11, PM2.5 concentration sensors 12, cycle Wind air-supply machine controller 13, compound installs case 14.
Specific implementation mode
The present invention is described in further detail for illustrated embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of low noise towards classroom fresh air supply concentrates the overall schematic of combined type filtration system. It is followed including fresh air blast pipe 1, the new wind filter 2 of centralization, air-air heat exchanger 3, corridor centralization filter 4, corridor Ring wind blast pipe 5, corridor centralization circulated air ajutage 6, corridor circulated air pressure fan 7, fresh air pressure fan 8, fresh air outlet 9, centralized fresh air ajutage 10, corridor circulated air air outlet 11, PM2.5 concentration sensors 12, circulated air air-supply machine controller 13, compound installs case 14.Compound installs case 14 is lifted on corridor both ends part furred ceiling or concentrated setting in teaching roof.Centralization New wind filter 2 and fresh air pressure fan 8 are independently set to two oblique vertex of compound installs case 14, the filtering of corridor centralization Device 4 and corridor circulated air pressure fan 7 are independently set to two other oblique vertex of compound installs case 14;Air-air heat Exchanger 3 is set to the middle part of compound installs case 14, is respectively communicated in centralized new wind filter 2, fresh air pressure fan 8, corridor collection Chinese style filter 4 and corridor circulated air pressure fan 7 and then formation composite transposition formula heat exchange.One end of fresh air blast pipe 1 with The outdoor connection of corridor exterior wall, newly wind filter 2 is connect the other end with classroom centralization.One end of centralized fresh air ajutage 10 It is connect with the air outlet of fresh air pressure fan 8, and gos deep into corridor along classroom arragement direction, end is sent with each indoor fresh air of religion respectively Air port 9 connects.One end of corridor circulated air blast pipe 5 is connected to corridor, and the other end is connect with corridor centralization filter 4.It walks One end of corridor centralization circulated air ajutage 6 is connect with the air outlet of corridor circulated air pressure fan 7, and along classroom arragement direction depth Enter corridor, end is connect with the corridor circulated air air outlet 11 above each classroom doorway respectively.PM2.5 concentration sensors 12 are installed The entrance of centralization filter 4 in corridor is connect by data line with circulated air air-supply machine controller 13, by corridor concentration Data feedback to circulated air blow machine controller 13;Circulated air air-supply machine controller 13 passes through control line and corridor circulated air is blown Machine 7 connects, and controls the start and stop of wind turbine.
Outdoor fresh air provides power by classroom fresh air pressure fan 8, enters from classroom fresh air blast pipe 1, then in turn through Enter classroom centralization fresh air ajutage 10 after the new wind filter 2 of classroom centralization, the filtering of total-heat exchanger 3 and heat exchange, most Each classroom is sent by classroom fresh air outlet 9 afterwards, classroom is constituted and concentrates fresh air system;Corridor air is blown by corridor circulated air Machine 7 provides power, enters from corridor circulated air blast pipe 5, then in turn through corridor centralization filter 4, total-heat exchanger 3 Enter corridor centralization circulated air ajutage 6 after filtering and heat exchange, finally by corridor circulated air air outlet 11 with air curtain Form is sent to above each classroom doorway, and corridor centralized cycle wind system is constituted.
Corridor circulated air air outlet 11 is arranged in classroom door top, and one is formed on classroom doorway with two-dimensional jet air-supply technology Kind air curtain effectively completely cuts off particulate pollutant and is spread from corridor to classroom, forms corridor Particulate Pollution buffering area.Classroom fresh air is sent Air port 9 is entered by corridor interior wall trepanning in classroom, can be evenly arranged multiple send according to the amount of seats and distribution situation in classroom Air port, air outlet preferably use wall-attaching type air diffuser, avoid that directly fresh air is blown to the behaviour area of human body and causes discomfort.
When fresh air system is arranged in corridor, classroom fresh air blast pipe 1 accesses outdoor by corridor and exterior wall trepanning, from Outdoor sucking fresh air, fresh air air inlet use grille, configure stormproof louvre, have the function of insect prevention, rain-proof etc..Classroom is new The design wind speed of air hose and corridor cycle air hose is no more than air conditioner ventilation wind speed design requirement in public building.
The new wind filter 2 of classroom centralization and corridor centralization filter 4 use step combined filtration, air to pass sequentially through The size of primary filter, medium effeciency filter and high efficiency particulate air filter, filter determines according to face velocity, different grades of filtering Device filtering velocity is different, and the area of filtering material is also different, required to determine according to the filtering velocity of filter the usable floor area of filtering material with Ensure in reasonable range.
Corridor circulated air pressure fan 7 and classroom fresh air pressure fan 8 use EC DC fans, highest running speed to be no more than 1400rpm。
PM2.5 concentration sensors are set in the corridor circulated air blast pipe 5 of corridor centralization filtration system, are walked by detection PM2.5 concentration situations of change in corridor, to control the operation of corridor circulated air pressure fan.When Sensor monitoring PM2.5 concentration Less than 50ug/m3When, corridor air filtering system is not run (wind turbine is not turned on);When Sensor monitoring PM2.5 concentration is higher than 75ug/m3When, air filtering system operation in corridor saves fan operation energy consumption by intermittent operation mode, while ensureing classroom Still effectively completely cut off with outdoor haze in classroom during opening the door after class.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein General Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to implementations here Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be Within protection scope of the present invention.

Claims (10)

1. a kind of low noise towards classroom fresh air supply concentrates combined type filter method, it is characterised in that:Take outdoor fresh air The dual system independent operating of filtering and the filtering of corridor circulated air, combined filtration technology, blower fan filtering babinet are positioned over corridor both ends Furred ceiling or roof, classroom form one-way gas flow with corridor, effectively control classroom and corridor particle contamination, keep good classroom empty Gas quality.
2. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:Classroom air filtering is to be sequentially sent to each classroom, making a hole with interior wall replaces existing score by after fresh air filtering and heat exchange It dissipating the formula classroom each classroom of filtration system and makes a call to four holes, classroom maintains classroom micro-positive pressure using no air draft and without return air mode, The effectively haze infiltration in the outer door and window gap of isolation.
3. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:The corridor air filtration uses corridor centralized return air system technology, and filtered air is sent to above each classroom doorway, with Two-dimensional jet air-supply technology forms a kind of air curtain on classroom doorway, obstructs the intrusion of classroom external particle object, will be formed closed The outdoor haze of inside corridor or outside corridor pollutes buffering area.
4. a kind of low noise towards classroom fresh air supply according to claim 1 concentrates combined type filter method, special Sign is:When air return through corridor mouth monitor particle concentration be less than 50ug/m3When, stop carry out corridor air filtration, when Air return through corridor mouth monitors that particle concentration is higher than 75ug/m3When, start corridor air filtration, is saved by intermittent operation mode Fan operation energy consumption, while ensureing that classroom interior energy effectively completely cuts off with outdoor haze during the enabling after class of classroom.
5. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:Using no air draft and without return air technology, corridor uses circulated air pattern, forms two systems independent operating, compound mistake in classroom The technical characteristic of filter, to be controlled to the classroom space particulate matter frequently to open the door.
6. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:Classroom fresh air design air flow determines that everyone fresh air volume is not less than 22m according to teachers and students' number in classroom3/h;
Preferably, the circulated air design air flow of corridor air filtering system is equal to the fresh air design air flow of fresh air filtration system.
7. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:Classroom fresh air pressure fan specification is according to the design air flow and system index circuit resistance of classroom fresh air filtration system come really It is fixed;
Preferably, corridor circulated air pressure fan specification is according to the design air flow and system index circuit of corridor air filtering system Resistance determines.
8. the low noise according to claim 1 towards classroom fresh air supply concentrates combined type filter method, feature to exist In:Classroom fresh air filtration system and corridor circulated air filtration system are all made of step combined filtration, and primary filter specification is G4, medium effeciency filter specification are F7, and difference, fresh air high efficiency filter use H13/H14, circulated air to final stage high efficiency particulate air filter High efficiency filter uses H11/12.
9. realizing that the low noise towards classroom fresh air supply of any the method in claim 1 to 8 concentrates combined type filtering System, it is characterised in that:Including classroom fresh air pressure fan, classroom fresh air blast pipe, the new wind filter of classroom centralization, full heat Exchanger, classroom centralization fresh air ajutage, classroom fresh air outlet, corridor circulated air pressure fan, corridor circulated air blast pipe, Corridor centralization filter, corridor centralization circulated air ajutage, corridor circulated air air outlet;
The outdoor fresh air provides power by classroom fresh air pressure fan, enters from classroom fresh air blast pipe, then in turn through religion Enter classroom centralization fresh air ajutage after the new wind filter of room centralization, total-heat exchanger filtering and heat exchange, finally by Classroom fresh air outlet is sent into each classroom, constitutes classroom and concentrates fresh air system;Corridor air is by the corridor circulated air pressure fan There is provided power, from corridor circulated air blast pipe enter, then in turn through corridor centralization filter, total-heat exchanger filtering and Enter corridor centralization circulated air ajutage after heat exchange, is sent in the form of air curtain to each finally by corridor circulated air air outlet Above the doorway of classroom, corridor centralized cycle wind system is constituted.
10. the low noise according to claim 9 towards classroom fresh air supply concentrates combined type filtration system, feature to exist In:Including classroom fresh air blast pipe (1), classroom centralization new wind filter (2), air-air heat exchanger (3), corridor collection Chinese style filter (4), corridor circulated air blast pipe (5), corridor centralization circulated air ajutage (6), corridor circulated air pressure fan (7), classroom fresh air pressure fan (8), classroom fresh air outlet (9), classroom centralization fresh air ajutage (10), corridor circulated air are sent Air port (11) PM2.5 concentration sensors (12), circulated air air-supply machine controller (13), compound installs case (14);The classroom collection The new wind filter of Chinese style (2), air-air heat exchanger (3), corridor centralization filter (4), corridor circulated air pressure fan (7), classroom fresh air pressure fan (8) is installed in compound installs case (14), is lifted on corridor both ends part furred ceiling or concentrated setting In teaching roof;
Preferably, the new wind filter (2) of centralization and fresh air pressure fan (8) are independently set to the two oblique of compound installs case (14) To vertex, corridor centralization filter (4) and corridor circulated air pressure fan (7) are independently set to compound installs case (14) separately Two outer oblique vertex;Air-air heat exchanger (3) is set to the middle part of compound installs case (14), is respectively communicated in concentration The new wind filter of formula (2), fresh air pressure fan (8), corridor centralization filter (4) and corridor circulated air pressure fan (7) are in turn Form composite transposition formula heat exchange;
Preferably, the outdoor connection of one end of fresh air blast pipe (1) and corridor exterior wall, the other end are filtered with classroom centralization fresh air Device (2) connects;One end of centralized fresh air ajutage (10) is connect with the air outlet of fresh air pressure fan (8), and is arranged along classroom Corridor is goed deep into direction, and end is connect with each indoor fresh air outlet (9) of religion respectively;
Preferably, one end of corridor circulated air blast pipe (5) is connected to corridor, and the other end connects with corridor centralization filter (4) It connects;One end of corridor centralization circulated air ajutage (6) is connect with the air outlet of corridor circulated air pressure fan (7), and along classroom Arragement direction gos deep into corridor, and end is connect with the corridor circulated air air outlet (11) above each classroom doorway respectively;
Preferably, PM2.5 concentration sensors (12) are installed in the entrance of corridor centralization filter (4), pass through data line It is connect with circulated air air-supply machine controller (13), corridor concentration data is fed back into circulated air air-supply machine controller (13);Cycle Wind air-supply machine controller (13) is connect by control line with corridor circulated air pressure fan (7), and the start and stop of wind turbine are controlled.
CN201810291548.4A 2018-04-03 2018-04-03 Low-noise centralized combined type filtering method and system for fresh air supply Active CN108692416B (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
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JP2017009259A (en) * 2015-06-26 2017-01-12 ローヤル電機株式会社 Ventilation device and ventilation system
CN206018915U (en) * 2016-07-22 2017-03-15 北京普尔绿色环境科技有限公司 Classroom VMC (Ventilation Mechanical Control System)
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Publication number Priority date Publication date Assignee Title
JP2017009259A (en) * 2015-06-26 2017-01-12 ローヤル電機株式会社 Ventilation device and ventilation system
KR20170079924A (en) * 2015-12-31 2017-07-10 백영신 Heat recovery type ventilation system using waste heat of boiler
CN205481537U (en) * 2016-02-02 2016-08-17 铜陵清源环保科技有限公司 Energy -saving uniflow fresh air device that indoor haze was handled
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Publication number Priority date Publication date Assignee Title
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