CN108442305A - Cross-ventilation cuts down haze devices and methods therefor - Google Patents

Cross-ventilation cuts down haze devices and methods therefor Download PDF

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Publication number
CN108442305A
CN108442305A CN201810374706.2A CN201810374706A CN108442305A CN 108442305 A CN108442305 A CN 108442305A CN 201810374706 A CN201810374706 A CN 201810374706A CN 108442305 A CN108442305 A CN 108442305A
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CN
China
Prior art keywords
air
haze
cross
tower body
air duct
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Pending
Application number
CN201810374706.2A
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Chinese (zh)
Inventor
张世林
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Sichuan Azure New Wind Technology Co Ltd
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Sichuan Azure New Wind Technology Co Ltd
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Priority to CN201810374706.2A priority Critical patent/CN108442305A/en
Publication of CN108442305A publication Critical patent/CN108442305A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H13/00Dispersing or preventing fog in general, e.g. on roads, on airfields

Abstract

The invention discloses a kind of cross-ventilations to cut down haze device, including tower body, wind turbine and heater;Exhaust outlet is offered at the top of the tower body, the center of the tower body is equipped with the air duct being connected to the exhaust outlet, and the bottom periphery of the tower body is equipped with the air inlet being connected to the air duct, and the wind turbine is equipped at the exhaust outlet, and the bottom end in the air duct is equipped with heater.Based on urban building group's roof, in a certain height layer, arrangement cross-ventilation abatement haze device makes the high haze air in city overcome inversion resistance using the measure of power and heating, vertical past airborne release, it is spread to periphery in the form of divergence after reaching certain altitude, outside the city ground fog haze air is flowed by the convergence campaign that negative pressure generates in city, and cross-ventilation is formed, promote air fully to exchange, effectively reduces haze concentration.The invention also discloses a kind of cross-ventilations to cut down haze method.

Description

Cross-ventilation cuts down haze devices and methods therefor
Technical field
The present invention relates to outdoor air cleaning equipment field, especially a kind of cross-ventilation abatement haze device and its side Method.
Background technology
The major measure one for cutting down atmospheric haze is substantially to cut down the discharge of major pollutants, second is that taking artificial abatement side Method.Currently, manually the method for abatement haze mainly has:
(1) air purifier
Cleaning principle mainly has physics mode, electrostatic means, chemical mode, negative-ion mode and complex method etc..It is this Method has certain effect to the indoor air purification of part, but to outdoor largely except haze is without Essential Action.
(2) haze tower is removed
Haze tower is removed than the more typical Chang'an having designed by Chinese Academy of Sciences's earth environment, is built in Xi'an Changan District, building sides Product is up to 2580 square metres.Cardinal principle is to allow air to enter in diversion tower by training wall to form air-flow flowing, passes through filtering Device filters out particulate matter, secondly by photocatalysis film coating degradation polluted gas, is discharged finally by tower top end purified Air.
Dutch designer's design subtracts haze purifying column, is built in Beijing Fashion design square, and cardinal principle is to utilize ionization skill Art sucks haze, filters deleterious particle, purified air is discharged.
Such method, essence is exactly an air purifier being exaggerated, net for the wide range of haze of city Change amount is inappreciable, and due to the misclosure of outdoor air, being only capable of moment improves air quality around tower.Due to Cost is high, can not large area laying.
(3) artificial snowfall operation
Artificial snowfall operation has preferable effect really to cutting down haze, but must have suitable for generating the day gas bar of precipitation Part.When haze weather, weather conditions are generally more quiet steady, and the weather situation of suitable operation, can not carry out operation.Often Local government department occurs to wish operation but do not have the contradiction of operating condition.
(4) other
Some cities atomizing de-dusting vehicle carries out the work of atomized water spray depositing dust;Some local developments vertically sow liquid with helicopter Nitrogen is to attempt the experiment for influencing to destroy inversion layer;Some places propose that, according to climate characteristic, city is established in design in urban planning City air duct;Some imagine, some copper coils are embedded in the places underground such as lawn of Urban Parks, and formation one is weak after energization Showy haze particle suction is dropped down onto ground etc. by electrostatic field by this electrostatic field.These methods and imagination, some effects are not Obviously, some not yet acquirements can prove that effective test data.
Invention content
To solve problems of the prior art, the present invention provides a kind of cross-ventilation abatement haze device and its sides Method, based on urban building group's roof, according to the vertical distribution and Characteristics of Temperature Inversion of local haze concentration, in a certain height layer, Using the measure of power and heating, the high haze air in city is made to overcome inversion resistance, it is vertical toward airborne release, reach certain altitude It is spread afterwards to periphery in the form of divergence, outside the city ground fog haze air is flowed by the convergence campaign that negative pressure generates in city, and air is formed Convection current promotes air fully to exchange, and effectively reduces haze concentration.
The technical solution adopted by the present invention is:
A kind of cross-ventilation abatement haze device, including tower body, wind turbine and heater;The row of offering at the top of the tower body Air port, the center of the tower body are equipped with the air duct being connected to the exhaust outlet, and the bottom periphery of the tower body is equipped with to be connected with the air duct Logical air inlet, the wind turbine is equipped at the exhaust outlet, and the bottom end in the air duct is equipped with heater.
The observation of temperature vertical distribution is carried out to city location, analyzes the spies such as average height, range, the intensity of city inversion Sign and pests occurrence rule.Carry out the observation of the soiling values such as PM2.5, PM10, the vertically and horizontally distribution for analyzing local city haze is special Sign.
Observation shows urban air haze, and all there are one peak heights, in this height hereinafter, haze concentration increases with height Add and increase, more than this height, haze concentration increases with height and reduced, and when arriving 400-500 meters of height, concentration can subtract It is small by 50%.
Based on urban building group's roof, the peak value in urban air haze or the building roof closest to peak value are built Subtract haze cross-ventilation tower station several, be designed as round or rectangular, each tower station volume is no less than 64m3
Tower body bottom sucks and high haze air is discharged vertically upward, is mainly completed by high-performance wind turbine.In duct exhaust air When, the haze air of air inlet is heated, 2 DEG C -3 DEG C of temperature is promoted.By power and heating function, inversion is overcome to hinder Power, by high haze air the high perpendicular where the tower body be sent into upwards 50-500 meters or more it is aerial.
Haze air is spread in the form of divergence to periphery after reaching certain altitude, and outside the city ground fog haze air is generated by negative pressure Convergence campaign flow into city in, formed cross-ventilation, promote air fully exchange, effectively reduce haze concentration.
Preferably, the number of the air inlet is 3-4, and the air inlet is uniformly distributed in the bottom sidewall of tower body; The number of the wind turbine is 1-2;The number of the heater is 3-4, bottom inside of the heater in the air duct It is uniformly distributed centered on the axle center in the air duct on wall.
Specifically, above-mentioned heater is electric heater, more environmentally friendly, is avoided when except haze since equipment uses the unclean energy Air is polluted.
Preferably, the top of the heater is equipped with homogenating plate.
Air quantity is uniformly distributed in air duct by homogenating plate, wind turbine balanced operation, outlet air is made to stablize.
Preferably, the air output of the wind turbine is 40m3/s-60m3The wind velocity that goes out of/s, the wind turbine are 25m/s-30m/ s。
To enable air containing haze to reach a certain height, to the air output of wind turbine, air duct internal diameter, goes out wind velocity and have to It asks, but the air output of wind turbine, without excessively high, otherwise power energy consumption will greatly increase, with air output 40m3/s-60m3/ s, go out wind speed Degree 25m/s-30m/s is advisable.
It is assumed that certain city haze peak height is 80 meters, the roof in this height is built at tower station, if flat at interval of 0.1 Square kilometer range builds a tower station, is calculated, 80 meters of following volume of air of height of every 0.1 square kilometre of range are 8000000m3, 1 tower, which is stood erectly, runs in tolerance by 50m3/ the second=180000m3/ hour drives capacity based on 1 times indirectly, that , the following haze air of 80m height only needs 22.2 hours can be all by the primary (8000000m of exchange3/360000m3= 22.2).If outside the city haze air concentration is the half of city haze air concentration, then tower station, which works 11.1 hours, can make city City's haze concentration reduces 25%, works 22.2 hours, and city haze concentration reduces 50%.This data is in high haze shape The effect that tower station works in the case of.If tower station begins to work when haze is not yet formed, subtracting haze effect can be more obvious, The formation that heavy fog haze can effectively be inhibited greatly reduces heavy fog haze Weather Days, this is also the unique distinction of the present invention.
Preferably, the tower body entire body is heat build-up material.
Specifically, above-mentioned heat build-up material can be optothermal material, for passing through solar energy heating haze air.
Preferably, the surface of the tower body is evenly equipped with denoiser.
The noise of motor etc. is the problem of needing to pay much attention in engineering construction, to have to practical noise reduction in the present invention Measure, it is ensured that ambient noise convergence national standard.
A kind of cross-ventilation abatement haze method, includes the following steps:
A, the observation of temperature vertical distribution is carried out to city location, analyzes average height, range, the intensity etc. of city inversion Feature and pests occurrence rule;
B, carry out the observation of the soiling values such as PM2.5, PM10, analyze the vertically and horizontally distribution characteristics of local city haze;
C, according to the analysis result of step a, b, based on urban building group's roof, urban air haze peak value or Building roof closest to peak value establishes vertical air duct;
D, air is conveyed by air duct from the bottom to top, and the air of air inlet of air duct is heated.
The beneficial effects of the invention are as follows:Using the measure of power and heating, the high haze air in city is made to overcome inversion resistance, Vertical past airborne release, is spread in the form of divergence to periphery, outside the city ground fog haze air is generated by negative pressure after reaching certain altitude Convergence campaign flow into city in, formed cross-ventilation, promote air fully exchange, effectively reduce haze concentration.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention;
Reference numeral:1- tower bodies, the air ducts 2-, 3- wind turbines, 4- heaters, 5- homogenating plates, 6- denoisers.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of cross-ventilation cuts down haze device,
Including tower body 1, wind turbine 3 and heater 4;The top of the tower body 1 offers exhaust outlet, the center of the tower body 1 Equipped with the air duct 2 being connected to the exhaust outlet, the bottom periphery of the tower body 1 is equipped with the air inlet being connected to the air duct 2, described Wind turbine 3 is equipped at exhaust outlet, the bottom end in the air duct 2 is equipped with heater 4.
The observation of temperature vertical distribution is carried out to city location, analyzes the spies such as average height, range, the intensity of city inversion Sign and pests occurrence rule.Carry out the observation of the soiling values such as PM2.5, PM10, the vertically and horizontally distribution for analyzing local city haze is special Sign.
Observation shows urban air haze, and all there are one peak heights, in this height hereinafter, haze concentration increases with height Add and increase, more than this height, haze concentration increases with height and reduced, and when arriving 400-500 meters of height, concentration can subtract It is small by 50%.
Based on urban building group's roof, the peak value in urban air haze or the building roof closest to peak value are built Subtract haze cross-ventilation tower station several, be designed as round or rectangular, each tower station volume is no less than 64m3
Tower body bottom sucks and high haze air is discharged vertically upward, is mainly completed by high-performance wind turbine.In duct exhaust air When, the haze air of air inlet is heated, 2 DEG C -3 DEG C of temperature is promoted.By power and heating function, inversion is overcome to hinder Power, by high haze air the high perpendicular where the tower body be sent into upwards 50-500 meters or more it is aerial.
Haze air is spread in the form of divergence to periphery after reaching certain altitude, and outside the city ground fog haze air is generated by negative pressure Convergence campaign flow into city in, formed cross-ventilation, promote air fully exchange, effectively reduce haze concentration.
The number of the air inlet is 3-4 in one of the embodiments, bottom side of the air inlet in tower body 1 It is uniformly distributed on wall;The number of the wind turbine 3 is 1-2;The number of the heater 4 is 3-4, and the heater 4 is in institute It states and is uniformly distributed centered on the axle center in the air duct 2 on the bottom inside wall in air duct 2.
The top of the heater 4 is equipped with homogenating plate 5.
Specifically, above-mentioned heater is electric heater, more environmentally friendly, is avoided when except haze since equipment uses the unclean energy Air is polluted.
The air output of the wind turbine 3 is 40m3/s-60m3The wind velocity that goes out of/s, the wind turbine 3 are 25m/s-30m/s.
To enable air containing haze to reach a certain height, to the air output of wind turbine, air duct internal diameter, goes out wind velocity and have to It asks, but the air output of wind turbine, without excessively high, otherwise power energy consumption will greatly increase, with air output 40m3/s-60m3/ s, go out wind speed Degree 25m/s-30m/s is advisable.
It is assumed that certain city haze peak height is 80 meters, the roof in this height is built at tower station, if flat at interval of 0.1 Square kilometer range builds a tower station, is calculated, 80 meters of following volume of air of height of every 0.1 square kilometre of range are 8000000m3, 1 tower, which is stood erectly, runs in tolerance by 50m3/ the second=180000m3/ hour drives capacity based on 1 times indirectly, that , the following haze air of 80m height only needs 22.2 hours can be all by the primary (8000000m of exchange3/360000m3= 22.2).If outside the city haze air concentration is the half of city haze air concentration, then tower station, which works 11.1 hours, can make city City's haze concentration reduces 25%, works 22.2 hours, and city haze concentration reduces 50%.This data is in high haze shape The effect that tower station works in the case of.If tower station begins to work when haze is not yet formed, subtracting haze effect can be more obvious, The formation that heavy fog haze can effectively be inhibited greatly reduces heavy fog haze Weather Days, this is also the unique distinction of the present invention.
1 entire body of the tower body is heat build-up material in one of the embodiments,.
Optothermal material can be selected in above-mentioned heat build-up material, for passing through solar energy heating haze air.
The surface of the tower body 1 is evenly equipped with denoiser 6 in one of the embodiments,.
It must be noted that due to the misclosure of outdoor air, only lean on fragmentary tower station be it is not all right, be according to system Engineering construction thinking is gradually completing all tower station construction in entire city, the effect that can have been received.
The noise of motor etc. is the problem of needing to pay much attention in engineering construction, to have to practical noise reduction measure, really Protect ambient noise convergence national standard.
Cross-ventilation legal person's work, which cuts down haze engineering construction, has significant economic results in society.
A kind of cross-ventilation abatement haze method, includes the following steps:
A, the observation of temperature vertical distribution is carried out to city location, analyzes average height, range, the intensity etc. of city inversion Feature and pests occurrence rule;
B, carry out the observation of the soiling values such as PM2.5, PM10, analyze the vertically and horizontally distribution characteristics of local city haze;
C, according to the analysis result of step a, b, based on urban building group's roof, urban air haze peak value or Building roof closest to peak value establishes vertical air duct;
D, air is conveyed by air duct from the bottom to top, and the air of air inlet of air duct is heated.
Specific implementation mode of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect range.

Claims (7)

1. a kind of cross-ventilation cuts down haze device, which is characterized in that including tower body, wind turbine and heater;The top of the tower body Portion offers exhaust outlet, and the center of the tower body is equipped with the air duct being connected to the exhaust outlet, and the bottom periphery of the tower body is equipped with The air inlet being connected to the air duct, the wind turbine is equipped at the exhaust outlet, and the bottom end in the air duct is equipped with heater.
2. cross-ventilation according to claim 1 cuts down haze device, which is characterized in that the number of the air inlet is 3- 4, the air inlet is uniformly distributed in the bottom sidewall of tower body;The number of the wind turbine is 1-2;Of the heater Number is 3-4, and the heater is uniformly distributed centered on the bottom inside wall in the air duct by the axle center in the air duct.
3. cross-ventilation according to claim 1 cuts down haze device, which is characterized in that the top of the heater is equipped with Homogenating plate.
4. cross-ventilation according to claim 1 cuts down haze device, which is characterized in that the air output of the wind turbine is 40m3/s-60m3The wind velocity that goes out of/s, the wind turbine are 25m/s-30m/s.
5. cross-ventilation according to claim 1 cuts down haze device, which is characterized in that the tower body entire body is heat build-up material Material.
6. cross-ventilation according to claim 1 cuts down haze device, which is characterized in that the surface of the tower body is evenly equipped with Denoiser.
7. a kind of cross-ventilation cuts down haze method, which is characterized in that include the following steps:
A, the observation of temperature vertical distribution is carried out to city location, analyzes the features such as average height, range, the intensity of city inversion And pests occurrence rule;
B, carry out the observation of the soiling values such as PM2.5, PM10, analyze the vertically and horizontally distribution characteristics of local city haze;
C, according to the analysis result of step a, b, based on urban building group's roof, urban air haze peak value or most connect The building roof of nearly peak value establishes vertical air duct;
D, air is conveyed by air duct from the bottom to top, and the air of air inlet of air duct is heated.
CN201810374706.2A 2018-04-24 2018-04-24 Cross-ventilation cuts down haze devices and methods therefor Pending CN108442305A (en)

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CN201810374706.2A CN108442305A (en) 2018-04-24 2018-04-24 Cross-ventilation cuts down haze devices and methods therefor

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111096185A (en) * 2019-12-09 2020-05-05 黄超 Low-altitude haze-removing air conduction device and haze-removing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111096185A (en) * 2019-12-09 2020-05-05 黄超 Low-altitude haze-removing air conduction device and haze-removing method thereof
WO2021115221A1 (en) * 2019-12-09 2021-06-17 黄超 Low-altitude haze removal air conduction device and haze removal method thereof

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