CN104676815A - Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method - Google Patents
Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method Download PDFInfo
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- CN104676815A CN104676815A CN201510102200.2A CN201510102200A CN104676815A CN 104676815 A CN104676815 A CN 104676815A CN 201510102200 A CN201510102200 A CN 201510102200A CN 104676815 A CN104676815 A CN 104676815A
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- air
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- ventilation unit
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Classifications
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- 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
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
Abstract
The invention discloses a haze-preventing environment-friendly type fresh air ventilator unit which is modified based on a conventional fresh air ventilator unit, wherein medium-coarse-effect two-stage filtration in a fresh air system in the conventional fresh air ventilator unit is modified into medium-coarse-high-effect filtration of three stages or more than three stages, so that the haze removal effect is reached by completely removing pollutants in the fresh air; meanwhile, a high resistance problem caused by multi-stage filtration is solved on the condition of meeting the air quantity and the air pressure of a fresh air ventilator through an improved air blower component, so that additional noises are increased slightly or not increased by the modified fresh air ventilator unit, the noises can be completely controlled within a range allowed by a relevant specification, and thus, an ideal effect of increasing the additional noises slightly or not increasing the additional noises can be achieved by the fresh air ventilator unit when the hazes can be completely removed.
Description
Technical field
This kind of haze environment-friendly type fresh-air ventilation unit and haze method, unit is a kind of fresh-air ventilation unit being applicable to energy haze, little noise, original ventilation air interchange system is transformed to the effect that can reach the little noise of haze completely by technique improvement.
Background technology
This economic development in several years of China is fast especially, and the environmental pollution simultaneously brought is also more and more serious, and urban air pollution has reached very important stage.Because the air pollution that each big city is serious makes the disease incidence of city dweller's respiratory tract more and more higher, the cry of people to purification of air is more and more higher.But purification of air will be carried out in whole city, composite factor is too many, expense is too large, macro adjustments and controls are even needed to realize to a certain extent, but the common people can have terminable etc. staying, since overall situation we individual can not change, we can change air condition from subenvironment, and the change of subenvironment also improves the air of overall situation simultaneously can do certain contribution.
The concrete technical background of a kind of haze environment-friendly type fresh-air ventilation unit designed by the present invention: because the air pollution situation in city is more and more serious, especially particularly serious in some industrial cities of north cold area and severe cold area, add the enforcement of this several years energy-saving and emission-reduction state basic policies, north cold area and severe cold area cut off the application of glass window for hollow, cause seam near the window to permeate gravity-flow ventilation and can not realize, as ventilated with window opened via, in the situation that outdoor temperature is too low, and outdoor pollution more serious time, window opened via is a large amount of cold air impouring because hot pressing can cause, or a large amount of foul atmosphere impourings, the dirt particle introducing more than 0.4um according to interrelated data has infringement to human body, this is that we do not want to allow the phenomenon occurred, and traditional fresh-air ventilation unit, can only the pollutant of Large stone in filtered air, original fresh air ventilator by means of only in thick double-filtration be then difficult to thoroughly remove haze, as the pollutant of small particle diameter will be filtered, then to strengthen filtration dynamics and namely add one deck and multi-layer efficient filtration, and when " public building energy design standard " GB50189-2005 5.3.16 article matches air cleaner, requirement meets the following requirements: 1, the initial resistance of low efficient filter is less than or equal to 50Pa(particle diameter and is more than or equal to 5.0um, efficiency is between 20 to 80 percent), whole resistance is less than or equal to 100Pa, and 2, the initial resistance of medium effeciency filter is less than or equal to 80Pa(particle diameter and is more than or equal to 1.0um, efficiency is between 20 to 70 percent), whole resistance is less than or equal to 160Pa, and the first resistance of high efficiency particulate air filter is also at about 200Pa, various filter set is combined and causes the resistance of VMC to strengthen greatly like this, general blast is difficult to improve blast by means of only reformation of blower itself not, this is just difficult to the normal operation of guarantee system, especially little self blast of air quantity blower fan is just very little, blast will be strengthened here, the phenomenon that increasing power of fan and air quantity also strengthen will be brought, bring unit noise also to have greatly increased simultaneously, because airduct does not increase, air quantity increase brings additional noise simultaneously, the increase of such noise may considerably beyond specification permissible value, therefore traditional transformation will bring the harm producing secondary noise pollution, as reduced over quantity and the number of plies of filter to reduce resistance, filter efficiency will be affected, as without intermediate effcient filter, directly with high efficiency particulate air filter, large contamination particle is easy to high efficiency particulate air filter to block, the dust containing capacity of high efficiency particulate air filter is also less, as need not middle effect bag filter, then whole filtration system dust containing capacity be too little, and other filters just needed to change with very short time, as need not efficient bag filter, then whole filtration system is filtered unclean to tiny dust, as various filter uses complete, then VMC resistance is just very large, Given this situation is planted, a kind of haze environment-friendly type fresh-air ventilation unit designed by the present invention solves above problem, namely by this haze environment-friendly type fresh-air ventilation unit, by set up multi-layer efficient filter and multiple stage blower fan series winding the dirt of outdoor and cold air are thoroughly filtered, by in air, the pollutant of the large small particle diameter of the better process of harm all can be removed more thoroughly, solve again the only very little noise 2-4dB of increase simultaneously or do not increase the cost of noise, the normal operation of fresh-air ventilation unit is realized even also may reduce the situation of noise under the prerequisite meeting unit function under, thus noise in specification allowed band clean ozone is sent into indoor, meet people in indoor the needs to new wind.
Summary of the invention
Designed by the present invention
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, original fresh-air ventilation unit present situation is: unit is made up of new wind air inlet system and exhaust system, and new wind air inlet system and exhaust system are by heat exchanger heat-shift; VMC is by new wind air inlet, and middle coarse filter, heat exchanger, separate unit blower fan, new wind outlet form; Exhaust system is made up of air draft air inlet, filter, heat exchanger, separate unit exhaust fan, air draft outlet, and air inlet system and exhaust system carry out heat exchange by heat exchanger.Elevator transformation is carried out to its internal structure and equipment in the basis of original traditional fresh air ventilator, Main transforms positions such as the exhaust fans in the air intake blower fan in VMC, VMC middle filtrator position and exhaust system, make the unit after improvement thoroughly by the pollutant removal in new wind, secondary noise pollution can not produced again by three grades and above filtration simultaneously.
onekind of haze environment-friendly type fresh-air ventilation unit first successfully solves under indoor no longer produce the prerequisite of secondary noise pollution, and outdoor is too cold or pollute too serious air-treatment to become clean fresh air to send into indoor; Blower pressure problem is shown in following principle: principle is stackable with the fan pressure of series winding operation; Following formula is shown in noise aspect: known power of fan N(KW), blast H(Pa) prerequisite under the acoustic power level of centrifugal blower be Lw(dB)=67+10lgN+10lgH, and the noise source of n same sound pressure level is under the effect simultaneously of certain point, the sound pressure level of this point is undertaken being superposed to ∑ Lp(dB by following formula)=Lp+10lgn, brings very little noise to add as seen or does not produce the additional effect of noise under series winding blower fan can solve the prerequisite ensured at blast.
Designed by the present invention
onethe modern design of kind of haze environment-friendly type fresh-air ventilation unit be in: enter exhaust fan and adopt multiple stage series winding low-noise fan, air inlet system filter is more than three grades and filters, thoroughly can remove haze, bring very little noise to add or do not produce noise to add, noise can be controlled in the scope of related specifications permission completely simultaneously.
Designed by the present invention
onemain Function and the object of kind of haze environment-friendly type fresh-air ventilation unit and haze method are: the demand providing the clean new wind thoroughly removed by haze for users, does not produce again the effect of secondary noise pollution simultaneously.
thisdesigned by invention
oneplant haze environment-friendly type fresh-air ventilation unit and have good realizability: thoroughly will remove the contaminate particulate in air, the dynamics of filtration will be strengthened, both high multistage filtering had slightly been increased, high multistage filtering in thick more than increasing, namely blower fan is wanted to strengthen blast, and the power of fan strengthening blast is also strengthened, cause noise also to strengthen simultaneously, how to reduce noise when strengthening blast simultaneously and become this
oneplant the key problem in technology point of haze environment-friendly type fresh-air ventilation unit; And designed by the present invention
onekind of haze environment-friendly type fresh-air ventilation unit air inlet system have employed thick in high more than three grades filter, and air intake/outtake system adopts the series connection of multiple stage low-noise fan, one solved the dynamics strengthening and filter after, strengthen the problem of blast, also solve the problem of the no longer additional a large amount of noise of strong wind pressure.
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, it is characterized in that: haze environment-friendly type fresh-air ventilation unit is made up of casing, air inlet system, exhaust system three parts.
Described
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, it is characterized in that: the casing of described fresh-air ventilation unit is by casing (1) and access door (2), and access door (3) forms; The equipment of air inlet system and exhaust system is all installed within it by casing (1), and the position of high-pass filter in VMC is thick opened by access door (3), and the bottom in exhaust system multi-bed filter (12) opened by access door (2).
Described
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, it is characterized in that: described air inlet system is by VMC air intake interface (4), multilayer intermediate effcient filter (5), two-layer above high efficiency particulate air filter (6), heat exchanger (7), multiple stage series winding low noise air intake blower fan (8), heater (9), VMC air draft interface (10) composition; Interface is all Flange joint, the order of connection is: air inlet system is connected with multilayer intermediate effcient filter (5) by VMC air intake interface (4), multilayer intermediate effcient filter (5) is connected with two-layer above high efficiency particulate air filter (6), two-layer above high efficiency particulate air filter (6) is connected with heat exchange (7), heat exchange (7) and multiple stage low noise air intake blower fan (8) of contacting is connected, multiple stage series winding low noise air intake blower fan (8) and heater (9), heater (9) is connected with VMC air draft interface (10).
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, it is characterized in that: described exhaust system: be made up of exhaust system air intake interface (11), multi-bed filter (12), heat exchanger (7), multiple stage series winding low noise exhaust fan (13), exhaust system air draft interface (14); Interface is all Flange joint, the order of connection is: exhaust system air intake interface (11) is connected with multi-bed filter (12), multi-bed filter (12) is connected with heat exchanger (7), heat exchanger (7) and multiple stage low noise exhaust fan (13) of contacting is connected, and multiple stage series winding low noise exhaust fan (13) is connected with exhaust system air draft interface (14).
oneplant haze environment-friendly type fresh-air ventilation unit and haze method, the method of haze, the first step: transformation VMC filter: VMC intermediate effcient double-filtration in original fresh-air ventilation unit is changed into multilayer intermediate effcient filter (5) and two-layer above high efficiency particulate air filter (6) filtration, reach the filter type of slightly high more than three grades and three grades, to reach the result thoroughly removing haze, second step: the former separate unit blower fan of transformation VMC is multiple stage series winding low noise air intake blower fan (8), the high blast that the high-drag problem brought by increasing filter is formed by multiple stage series winding low noise air intake blower fan (8) blower fan in subsequent technique solves, the additional noise that multiple stage series winding low noise air intake blower fan (8) is brought can be obtained by above-mentioned formulae discovery, added value is very little, owing to adopting multiple stage series winding low noise air intake blower fan, every Fans in series winding can when air quantity remains unchanged, blast can suitably reduce, power of fan also can reduce, by formula Lw(dB)=67+10lgN+10lgH, ∑ Lp(dB)=Lp+10lgn comprehensively checks, the overall noise obtaining ventilation air interchange system may increase very little or not increase on original basis, to reach the effect of the little noise of haze, 3rd step, the former single blower fan of transformation exhaust system is multiple stage series winding low noise exhaust fan (13): also replace original separate unit blower fan to reach the requirement of system wind pressure and air quantity by multiple stage series winding low noise exhaust fan (13) in exhaust system, can reduce haze.
Described
onethe difference of planting haze environment-friendly type fresh-air ventilation unit and other fresh-air ventilation units is: 1, general fresh-air ventilation unit air inlet system filter only has middle coarse filtration double-filtration, and filter efficiency is lower, and designed by the present invention
oneslightly high three grades and filter above during kind of haze environment-friendly type fresh-air ventilation unit air inlet system filter is provided with, filter efficiency is very high, can remove all size contaminate particulate in air thoroughly; 2, general fresh-air ventilation unit is because of separate unit blower fan, is difficult to the demand meeting large blast, and will strengthens the increase that blast can bring air quantity and power simultaneously, and designed by the present invention
oneplant haze environment-friendly type fresh-air ventilation unit employing multiple stage blower fan series winding, in the blower fan of series winding, every Fans is when air quantity is constant, and power is less, noise is just less, the rear effect forming the very little noise of overall unit increase or do not increase noise of contacting.
Accompanying drawing explanation
Fig. 1 is fresh-air ventilation unit air inlet system process chart.
Fig. 2 is fresh-air ventilation unit exhaust system process chart.
Fig. 3 is fresh-air ventilation unit overall appearance figure.
Fig. 4 is fresh-air ventilation unit cut-away view.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4:
1-fresh-air ventilation casing, 2-access door, 3-access door, 4-VMC air intake interface, 5-multilayer intermediate effcient filter, 6-two-layer above high efficiency particulate air filter, 7-heat exchanger, 8-multiple stage series winding low noise air intake blower fan, 9-heater, 10-VMC air draft interface, 11-exhaust system air intake interface, 12-multi-bed filter, 13-multiple stage series winding low noise exhaust fan, 14-exhaust system air draft interface.
Detailed description of the invention
This
oneplanting haze environment-friendly type fresh-air ventilation unit is transform original traditional fresh-air ventilation unit, slightly efficient three grades even filtration of more than three grades during effect double-filtration thick in VMC in original traditional fresh-air ventilation unit is changed into, new wind pollutant is thoroughly removed to reach the effect except haze, bring simultaneously high-drag, under solving the constant prerequisite of air quantity by follow-up multiple stage series connection blower fan, blast superposes the high-drag that the high blast of generation solves multi-bed filter, because every separate unit fan pressure in multiple stage series connection blower fan is constant or reduce, the power of every separate unit blower fan is constant or reduce, every separate unit blower fan does not increase than conventional fan noise, even reduce, increase on this basis multiple stage series connection blower fan work simultaneously produce extra noise can obtain by above-mentioned formulae discovery the additional noise that only increase is very little, so solve thoroughly except the effect of haze, a large amount of additional noise is not brought again to pollute, noise can be controlled in the scope of related specifications permission.
oneplant haze environment-friendly type fresh-air ventilation unit haze method first, transformation VMC filter: change VMC intermediate effcient double-filtration in original fresh-air ventilation unit into multilayer intermediate effcient filter (5) and two-layer above high efficiency particulate air filter (6), reach the filter type of slightly high more than three grades and three grades, to reach the result thoroughly removing haze, second, the former single blower fan of transformation VMC is multiple stage series winding low noise air intake blower fan (8): the high blast that the high-drag problem brought by increase filter is formed by multiple stage series winding low noise air intake blower fan (8) blower fan in subsequent technique solves, the additional noise that multiple stage series winding low noise air intake blower fan (8) is brought can be obtained by above-mentioned formulae discovery, added value is very little, owing to adopting multiple stage series winding low noise air intake blower fan, every Fans in series winding can when air quantity remains unchanged, blast can suitably reduce, power of fan also can reduce, by formula Lw(dB)=67+10lgN+10lgH, ∑ Lp(dB)=Lp+10lgn comprehensively checks, the overall noise obtaining ventilation air interchange system may increase very little or not increase on original basis, to reach the effect of the little noise of haze, 3rd, transformation exhaust system former single blower fan is multiple stage series winding low noise exhaust fan (13): also replace original separate unit blower fan with under the prerequisite reaching the requirement of system wind pressure and air quantity by multiple stage series winding low noise exhaust fan (13) in exhaust system, can reduce unit noise.
Designed by the present invention
onewhen planting the unit use of haze environment-friendly type fresh-air ventilation, first Simultaneous Switching starts multiple stage series winding low noise air intake blower fan (8), multiple stage series winding low noise exhaust fan (13); New wind successively by VMC air intake interface (4), multilayer intermediate effcient filter (5), two-layer above high efficiency particulate air filter (6), the room air heat exchange of being discharged by heat exchanger (7) and exhaust system, then through multiple stage series winding low noise air intake blower fan (8), heater (9), VMC air draft interface (10) by fresh cleaned air feeding indoor; Air draft is passed through exhaust system air intake interface (11), multi-bed filter (12) successively, by heat exchanger (7) and new air heat-exchange, is contacted outside low noise exhaust fan (13), exhaust system air draft interface (14) discharge chamber through multiple stage again.
A kind of haze environment-friendly type fresh-air ventilation unit designed by the present invention: structure is simple, easy to use, materials economy, non-environmental-pollution, supporting with former indoor decoration, have the advantages that to be suitable for various occasion and to use, and when colder foul atmosphere exists in outdoor, use more remarkable effect.
Designed by the present invention
oneplant the appearance of haze environment-friendly type fresh-air ventilation unit, compensate for the vacancy that effectively can not prevent haze in the market, original fresh-air ventilation unit basis on carry out the improvement of technical performance, have developed a kind of low noise, thoroughly can remove the fresh-air ventilation unit of haze, greatly improve fresh-air ventilation unit use value and social benefit, thoroughly solving the dirty cold air in outdoor deposits in case, and people cannot breathe the problem of clean ozone.
Claims (5)
1. haze environment-friendly type fresh-air ventilation unit and a haze method, is characterized in that: haze environment-friendly type fresh-air ventilation unit is made up of casing, air inlet system, exhaust system three parts.
2. a kind of haze environment-friendly type fresh-air ventilation unit according to claim 1 and haze method, is characterized in that: the casing of described fresh-air ventilation unit is by casing (1) and access door (2), and access door (3) forms; The equipment of air inlet system and exhaust system is all installed within it by casing (1), the position of high-pass filter in VMC is thick opened by access door (3), and the bottom in exhaust system multi-bed filter (12) opened by access door (2).
3. described a kind of haze environment-friendly type fresh-air ventilation unit according to claim 1 and haze method, it is characterized in that: described air inlet system is by VMC air intake interface (4), multilayer intermediate effcient filter (5), two-layer above high efficiency particulate air filter (6), heat exchanger (7), multiple stage series winding low noise air intake blower fan (8), heater (9), VMC air draft interface (10) composition; Interface is all Flange joint, the order of connection is: air inlet system is connected with multilayer intermediate effcient filter (5) by VMC air intake interface (4), multilayer intermediate effcient filter (5) is connected with two-layer above high efficiency particulate air filter (6), two-layer above high efficiency particulate air filter (6) is connected with heat exchange (7), heat exchange (7) and multiple stage low noise air intake blower fan (8) of contacting is connected, multiple stage series winding low noise air intake blower fan (8) and heater (9), heater (9) is connected with VMC air draft interface (10).
4. a kind of haze environment-friendly type fresh-air ventilation unit according to claim 1 and haze method, is characterized in that: described exhaust system: be made up of exhaust system air intake interface (11), multi-bed filter (12), heat exchanger (7), multiple stage series winding low noise exhaust fan (13), exhaust system air draft interface (14); Interface is all Flange joint, the order of connection is: exhaust system air intake interface (11) is connected with multi-bed filter (12), multi-bed filter (12) is connected with heat exchanger (7), heat exchanger (7) and multiple stage low noise exhaust fan (13) of contacting is connected, and multiple stage series winding low noise exhaust fan (13) is connected with exhaust system air draft interface (14).
5. a haze environment-friendly type fresh-air ventilation unit and haze method, it is characterized in that: the method for haze, the first step: transformation VMC filter: VMC intermediate effcient double-filtration in original fresh-air ventilation unit is changed into multilayer intermediate effcient filter (5) and two-layer above high efficiency particulate air filter (6) filtration, reach the filter type of slightly high more than three grades and three grades, to reach the result thoroughly removing haze; Second step: the former single blower fan of transformation VMC is multiple stage series winding low noise air intake blower fan (8); 3rd step, transformation exhaust system former separate unit blower fan is multiple stage series winding low noise exhaust fan (13): also replace original separate unit blower fan to reach the requirement of system wind pressure and air quantity by multiple stage series winding low noise exhaust fan (13) in exhaust system, can reduce haze.
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| CN201510102200.2A CN104676815A (en) | 2015-03-06 | 2015-03-06 | Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method |
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| CN201510102200.2A CN104676815A (en) | 2015-03-06 | 2015-03-06 | Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method |
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| CN204084683U (en) * | 2014-08-21 | 2015-01-07 | 上虞专用风机有限公司 | A kind of Fresh air handling units |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493341A (en) * | 1982-11-17 | 1985-01-15 | Wilhelm Gebhardt Gmbh | Blower unit for air-conditioning plant |
| CN102338124A (en) * | 2010-07-20 | 2012-02-01 | 株式会社日立制作所 | Axial flow fun |
| CN102705914A (en) * | 2012-06-29 | 2012-10-03 | 江苏瑞丰科技实业有限公司 | PM (Particulate Matter) 2.5 and air pollutant purification treating method of ventilating system |
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Application publication date: 20150603 |
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