CN1863584A

CN1863584A - Room ventilating method for e.g. school, involves fixing air jet on ceiling surface by coanda effect, sucking air by aspiration layer fixed to ground surface, and setting average blowing speed lower t

Info

Publication number: CN1863584A
Application number: CNA2004800290992A
Authority: CN
Inventors: J·－M·比利奥蒂; F·巴瑟特; E·V·伏洛蒂纳; A·V·纳戈尔金
Original assignee: AirInSpace Ltd
Current assignee: Space air co
Priority date: 2003-09-10
Filing date: 2004-09-10
Publication date: 2006-11-15
Also published as: RU2006111437A; WO2005025711A2; FR2859522B1; WO2005025711A3; JP2007505283A; EP1670565A2; CA2538227A1; RU2347149C2; FR2859522A1; US20070202798A1

Abstract

The invention concerns a device (101) for airborne decontamination of a room (3) by mixing, an air delivery (19) and suction (21) flux bound by Coanda effect (C). A vertical piping (103) comprises a suction port lower end (104) and an air delivery upper end (105). An actuating means (106) circulates air (A) inside and outside. A suction nozzle (118) provides a vertical suction surface (Sa), for sucking air (A) along a suction duct (55) parallel and bonded to the floor (6) by Coanda effect (C). A blow nozzle (129) with ceiling surface effect (20) provides a front porous blowing surface (Ss). Said nozzle produces a primary air jet (19) bound to the ceiling (20) by Coanda effect (C). A decontaminating means (127) decontaminates the air (A). The active section (Sae) of the suction surface (Sa) is lower than the active surface (Sse) of the blowing surface (Ss). Thus the unwanted shunt air stream commonly associated with bound air flow ventilation systems is eliminated.

Description

By utilize relying on the ventilation that blowing air flow that wall attachment effect adheres to and inspiratory flow mix and the method and apparatus of air supporting depollution

Technical field

The present invention relates to be used for the method and apparatus of ventilation and air supporting depollution (airborne decontamination), its purpose is to reduce and is suspended in the airborne quantity of being infected with particle in the room, and its working method comprises:

By mixing;

Adopt two wall attachment effects;

Use is attached to a primary air jet flow (blown primary jet) of ceiling; And

Use is attached to an inspiratory flow on floor.

Background technology

Traditionally, air-conditioning method be technically according to air-distribution in being classified by the mode in the room of air-conditioning.Like this, the method that the room is carried out air-conditioning can be classified as follows:

By make air as piston, move forward into the wind that works with way flow;

By making air move forward into the wind that works with the fuel factor lamination;

Zonal ventilation;

By being mixed into the wind that works; And

Jet flow by the part is ventilated.

In the ventilation technical term, " primary air jet flow " be meant by the blowing mouth such as grid, porous plate, cloth wind ceiling send into the room, through conditioning in advance (cool off, heat, remove contaminant, humidification, dehumidifying ...) air.Term " total amount air " is meant the mixture of primary air that is admitted to the room and the space air of little by little being carried under one's arms by primary air and mixing with it.

In by the method that mobile (being also referred to as one-way flow) or " laminar flow room " ventilates as the air slide, the unidirectional primary air jet flow that occupies the whole section in room moves air.With the section of the wall in room, generally be ceiling or be one of sidewall sometimes, as the surface that primary air is blown into the room.Air is blown into the room with certain speed, and this speed is enough to make air to cross the relative wall (generally being the floor) of room arrival with parallel mobile air communication, and this wall is the porous getter surface that plays a part.Also have a kind of common practice, take air away by the air-breathing wall grid that approaches the floor being installed in the bottom of wall.Laminar flow is to carry out work with the principle of " piston motion ".The effect of primary air stream pushes back the air of being infected with by the quilt that extracts from the room as syringe." laminar flow " room can be used for reaching low-down contaminant concentration.The air that is discharged from is taken away with the air processor of building connection by one, and these air are filtered and remove contaminant and mix with new air therein.Then, such air is blown and is got back in the room by the cloth wind surface (generally being ceiling) that high-efficient granule air (HEPA) filter is housed.Spread all over whole protected room, the flowing velocity on the whole section in room is roughly uniform, and speed is 0.3-0.5m/sec.Blowing surface (blow surface) and getter surface (suction surface) can be arranged to:

Two relative walls (ceiling of porous and the floor of porous);

Two mutually perpendicular walls (suction grille of ceiling and wall bottom);

Never on same wall.

The air capacity that is blown into layer flow mode needs 10 times to 100 times to the air capacity of coming the device of mobile air to be blown into mixed ventilation device that has turbulent flow or dependence fuel factor lamination.In addition, need whole ceiling to load onto the wall of HEPA filter.Compare with the ventilation unit that mixed ventilation device (turbulent room) or dependence fuel factor lamination move air, the air various devices that mobile (laminar flow) ventilates as piston shown as:

Cost of investment is higher, exceed an order of magnitude; And

High about 10 times of energy consumption cost.

In addition, laminar flow ventilate, comprise that the works of whole blowing wall (ceiling or wall) makes it can not be made for portable system.The ventilation unit that air is moved as piston can only be used to remove airborne contaminant and require the super occasion that cleans, and can not be used for the purpose of air-conditioning completely, because it is too expensive.

Relying on the fuel factor lamination to make in the method for ventilation that air moves, on the floor or near the floor, one or more Cryogenic air (cold air) ventilation terminals (diffuser) are set.This method relies on the atmospheric density difference in the room to carry out work." new " aspect cold and heavier than room air primary air of being sent into the room by the bottom little by little upwards pushes away room air (floating over above the cold air because room air is warm).Compare with the method for ventilation that air moves as piston, utilize the expense of method of ventilation of fuel factor lamination lower.Its purposes mainly is to guarantee that the people in the room are in comfortable temperature.Regrettably, it is very responsive to Temperature Distribution, neither be very effective aspect air supporting depollution (particularly bacterium and mould).In addition, its ventilation terminal of adopting is very heavy and very strong structure support thing need be set on the floor.They can not manufacture the form of portable system.The ventilation unit that relies on the fuel factor lamination to move air is mainly used in the air-conditioning occasion.

In zonal ventilation (zone ventilation) method, its principle is some zone or volume in the room are handled, and the remainder in room is left out of account.It is generally acknowledged effective than by the ventilation that in each zone that is ventilated, mixes of the effect of zonal ventilation.But, it to contaminant to water down effect lower comprehensively, this causes removing of the contaminant in the room comprehensively effectively little usually.

In adopting the method for ventilation that mixes, the motion of air is mainly finished by the energy that the one or more primary air jet flows that spray in the room are brought.Adopting the theoretic target of the method for mixing is to set up uniform state for the air in the room.For this reason, order one or more primary air jet flows of spraying into the room are mixed with indoor a large amount of air.This phenomenon is called as " inducing ".For for the people in the room sets up temperature comfortableness preferably, generally be preferable by being mixed into the wind that works.Term " the has the people " zone is expression room back warp often has people that part.It normally be restricted to from the wall that window is arranged in the room, put in 50cm a surface, in the room, put in 20cm and extend to the space of floor top 180cm from other each wall.Try hard to primary air is mixed with the air in the room (reaching as far as possible fully evenly) by the method that is mixed into the wind that works, so, airborne various impurity and contaminant are not only watered down and the toxicity reduction in the room, and are distributed more evenly usually.Equally, can also make indoor temperature even as far as possible, in order to avoid people feel uncomfortable, this is desirable just.Regrettably, the general requirement of the size in the room of a modest size and the number of ventilation terminal sprayed primary air jet flow (cold air) with such speed, that is, if people face the primary air jet flow, this speed may surpass needs the comfortable receptible degree of people.Can be subdivided into two kinds of patterns technically by the method that is mixed into the wind that works:

The ventilation that mixes with free primary air jet flow; And

The ventilation that the primary air jet flow of adhering to the dependence wall attachment effect is mixed.

In the method for ventilation that mixes with free primary air jet flow, the ventilation terminal of the middle body of the wall (normally ceiling) by generally being mounted in the room sprays into room (normally blowing from the top down) to the primary air jet flow.The primary air jet flow is the enveloping surface (envelope) by the people zone is arranged generally perpendicularly.The motion of room air almost is chaotic.The primary air jet flow almost be with arrive indoor people place before room air carries out any tangible mixing.This tends to make people to feel that temperature is uncomfortable.

In the method for ventilation that the primary air jet flow of adhering to the dependence wall attachment effect is mixed, by the ventilation terminal that is installed in certain zone (generally being) on the room sidewall primary air jet flow is sprayed into the room, and the direction of jet flow is roughly parallel to and is tangential on the wall (generally being ceiling) in room near ceiling.That is to say, be to have outside the people zone, between the accompanying wall of the enveloping surface that the people zone is arranged and primary air jet flow the primary air jet flow sprayed into the room.Like this, the primary air jet flow is advanced along a long path and is mixed with indoor a large amount of air gradually, and then arriving has the people zone.Such layout receives an acclaim because of making people experience more comfortable temperature.

Know according to many experiments that Romanian engineer Coanda carried out for the purposes of aviation in 1910: when an air jet was positioned to one of close enough such as ceiling surperficial, air jet can become and is attached to this surface and keeps moving forward contiguously with it.This phenomenon is called as wall attachment effect or skin effect.This is because air jet tends to suck the surrounding air of contact with it and mixes (diffusion) with it.But, may not have air to be inhaled near surface.This will cause pressure occurring between air jet and that surface and fall, and be attached to that surface thereby air jet is become.

The present invention relates to utilize the primary air jet flow that relies on wall attachment effect to be attached to ceiling to mix the method for ventilation of the sort of type, simultaneously air by by an air entry equally also being that the form that relies on wall attachment effect to be attached to the inspiratory flow on floor is extracted out.In such ventilation, when the size in the room can be used it, the primary air jet flow " is watered down " gradually at it can be brought into play its effect before and can reach a wall opposite with its wall that is ejected.Then, whole air stream continues to travel forward and flow back into air entry near the floor subsequently along this opposite wall.Go to getter surface by air from spraying the surface, this has formed a kind of " encirclement " in people zone arranged.

The initial experiment data of the method for ventilation that mixes by the primary air jet flow of adhering to the dependence wall attachment effect can be traced back to nineteen thirty-nine, and Baturin and Hanzhonkov have proved by ceiling with facing to " refluence " phenomenon of the relative wall deflection that the people zone is arranged at that time.At Baturin and Hanzhonkov the air that forms is flowed in the Morphological analysis of structure of being done, their conclusion is: the form of air movement depends on the installation site of blowing grid (surface), and is subjected to the influence of the structure of suction grille (surface) and suction condition very little.The theoretical writings of being delivered by Nelson, Steward, Bromleys and Gunes had provided the temperature in the method for ventilation that mixes by the primary air jet flow of utilizing attached wall and the distribution of speed afterwards.Another theoretical writings that Linke delivers points out to exist the maximum length that this principle that can properly use is carried out room with good ventilation.He especially proves: for the primary air jet flow of the straight line that is attached to ceiling, a Reynolds number in 1,825 to 12,000 scope is arranged, the length in room can not surpass 3 times of its width, so just can set up one " envelope " stream.

During less than this limits value (＜its width about 3 times), can obtain the air stream in envelope one a single zone in the length in room.Hereinafter provide the explanation of this phenomenon with reference to Fig. 2.Such room is called " short room ".

The room that surpasses this limits value is called " between the eldest branch of a family ".Such room is to be flowed " separation " by air.First loop movement that is similar in " short room " available motion in lining of air is made of a total air jet, and this total air jet flows through the central authorities that the people zone is arranged vertically downward subsequently and gets back near the getter surface that flatly is in the floor along ceiling.Other eddy current or title " sealing " air circulation appears between the other end in first circulation and room.Provide the explanation of this phenomenon below with reference to Fig. 3.

Theory that those are delivered and scientific experiment research document show:

When not applying any specified conditions (condition about average cold air blast velocity and average suction speed that the present invention recommends will provide hereinafter);

So, can manifest one " the interference shunting air of inclination flows (interfering shunt airflow) " in the place that the horizontal range to the sidewall that works (that wall that blowing surface and getter surface are arranged) is about a height in room.

This " interference shunting air stream of inclination " may rise from the floor and upwards flow to blowing mouth by the people zone is arranged obliquely.Hereinafter provide the explanation of this phenomenon with reference to Fig. 2 and 3.

Implementing aspect the ventilation of room method of mixing with the primary air jet flow of adhering to, that has delivered has just discussed the application scenario of hot ventilation about the works of air glide path and air velocity.They try hard to guarantee to have the air velocity in people zone and temperature pleasant as far as possible.In the prior art, the effect of generally seeking when implementing the method for ventilation that mixes by the primary air jet flow that usefulness is adhered to is to prolong the primary air jet flow to enter the distance of passing by before the people zone in the room.Those skilled in the art that's [is representative with the scientist group that has delivered the scientific paper of quoting previously] always to being used to remove airborne floating contaminant by the primary air jet flow of adhering to is mixed, just reducing by this way by the device of the method for ventilation of the quantity of being infected with particle of the suspension in the room with good ventilation and this method of enforcement and lose interest in so far.As mentioned above, those those skilled in the art that are devoted to the fuel factor of ventilating and the thermal comfort of the people in the room basically always, even think in their works: " the interference shunting air stream of inclination " that may rise from the floor that utilizes the primary air jet flow that relies on wall attachment effect to be attached to ceiling to carry out room with good ventilation can cause producing the effect that they think " useful ".Those those skilled in the art that think: this " the interference shunting air stream of inclination " can strengthen and mix and then the hot validity of ventilating of raising.Therefore, nature can understand why not those those skilled in the art that want to reduce or elimination " the interference shunting air stream of inclination ", although it is being harmful to aspect the air supporting depollution basically.In those those skilled in the art that's common thinking framework, the problem of air supporting depollution is considered to:

Perhaps this problem is very serious, and can solve by the method for ventilation that air is moved with one-way flow as piston, although the major defect of this method is the expense height;

Perhaps this problem is not too important, and the method for ventilation that the free primary air jet flow of available the sort of usefulness is mixed solves, perhaps, the method of ventilation that the primary air jet flow of adhering to the sort of usefulness is mixed solves, and does not consider the influence of " the interference shunting air stream of inclination " (being exactly the negative consequence of ignoring it);

Perhaps this problem is very little, in this case, the circularly purifying that carries out air is just passable, and it is not very effective causing removing aspect the contaminant, be infected with having of rising from the floor particle and can be left in the basket by the interference air stream that " the interference shunting air stream of inclination " is strengthened.

Main purpose of the present invention is to reach:

From the method for ventilating with the primary air jet flow of adhering to, putative intrinsic advantage acquires benefit, particularly to guarantee people comfortable in the room, and make its equipment and operating cost lower than the expense of the method for ventilation that air is moved as piston; And

Also can be suitable for being used in the application scenario that contaminant and " super cleaning " are highly removed in requirement.

For this reason, the present invention tries hard to reduce or eliminates to be deposited in and be infected with that particle moves upward and the phenomenon of getting back to floating state on the floor again, and this phenomenon to carry out in the room with good ventilation at the air jet that adheres to by utilization be often to occur.Like this, main purpose of the present invention provides and is used to improve the facility that utilizes the method that the primary air jet flow that relies on wall attachment effect to be attached to ceiling ventilates, to try hard to reduce or eliminates the existence of " the interference shunting air of inclination flows " that might rise from the floor.Secondary objective of the present invention be for the structure that is independent of building, remove the wheeled apparatus that airborne contaminant uses a kind of project organization be provided, the method that the primary air jet flow that this device enforcement utilization is adhered to is ventilated, but " the interference shunting air stream of inclination " can not appear.

This wheeled apparatus that is used to remove airborne contaminant that is independent of the structure of building is:

According to the principle work that waters down air, it is similar to the principle in the room that turbulent flow is arranged in it;

Also as clarifier, work, adopt the ventilation of local spray pattern.

Indirection techniques background of the present invention is included in roughly on the sustained height essentially horizontally inspiration and wheeled apparatus blow out air, that be used to remove airborne contaminant.In such device, can mention the device of United States Patent (USP) 6,425,932 announcements of Huehn, Deros and Bourque.Can be clear that: the sort of device can not blow out a primary air jet flow that is attached to ceiling, can not utilize an air that is inhaled into that is attached to the floor to flow.

In indirect technical background, suck air aloft in addition and to the wheeled apparatus lower blow out air, that be used to remove airborne contaminant.

The United States Patent (USP) 5,240,478 of Messina has been described and has a kind ofly been sucked air aloft and to the HEPA of lower blow out air filtration purifier.

The United States Patent (USP) 5,612,001 of Matschke has been described and has a kind ofly been sucked air aloft and to ultraviolet ray (UV) the lamp clarifier of lower blow out air.

The United States Patent (USP) 5,656,242 of Morrow and McLean has been described and has a kind ofly been sucked air aloft and to the ultraviolet lamp clarifier lower blow out air, that have electrostatic filter.

Should be able to easily understand: these suck air aloft and can not set up the primary air jet flow that is attached to ceiling to the clarifier of lower blow out air, and this is to impel from the floor formation of interference air stream upwards that rise, that contain contaminant because the air that they blow out to lower fails to be convened for lack of a quorum.

In indirect prior art, also have at lower and suck air and blow out air, that be used to remove airborne contaminant aloft wheeled apparatus, but the height distance ceiling of blow out air is too far away, to such an extent as to the primary air jet flow that blows out can not rely on wall attachment effect to be attached to ceiling.

The United States Patent (USP) 4,900,344 of Lansing has disclosed a kind of filtration purifier, and it is provided with the bottom attraction type air intake mouth on the aspect of floor and keeps off top blowing mouth ceiling, the low clearance place at one.

The United States Patent (USP) 5,997,619 of Knuth and Carey has disclosed a kind of ultraviolet lamp and filtration purifier, and it is from the side suction air of lower and at a low clearance blow out air of keeping off ceiling.

The United States Patent (USP) 6,001,145 of Hammes has disclosed a kind of filtration purifier, it be provided with on the aspect of floor bottom attraction type air intake mouth and at the top at low clearance place inflatable mouth device, this height can not make the primary air jet flow be attached to ceiling.

The United States Patent (USP) 5 of Tillman and Smith, 453,049 has disclosed a kind of clarifier of rectangular cross section, it is provided with by the wide bottom air entry of HEPA filter with at the top inflatable mouth low clearance place, that pass through the vertical guiding of a little opening, and this height can not make the primary air jet flow be attached to ceiling.

The United States Patent (USP) 4,210,429 of Golstein has disclosed a kind of ultraviolet lamp and filtration purifier, it the side direction air entry of bottom is arranged and in the upper side at a low clearance place to blowing mouth, this height can not make the primary air jet flow be attached to ceiling.

These clarifiers all are to adopt local jet type.Relating to utilization without any a file in these files relies on wall attachment effect to be attached to the device of the primary air jet flow of ceiling.Also the measure that is used to reduce or eliminate " the interference shunting air stream of inclination " between floor and ceiling is described without any file.

At last, also have some from the lower suck air and to the wheeled apparatus height blow out air, that be used to remove airborne contaminant near ceiling, they can make the primary air jet flow rely on wall attachment effect to become in theory and be attached to ceiling.

The United States Patent (USP) 5,290,330 of Tepper, Suchomski and Mex has disclosed a kind of device that independently is used to remove airborne contaminant, and its shape is a vertical cuboid, is provided with the bottom air entry and the gas outlet, top of the level of being all.Be arranged on device inner cylindrical filter element with one vertically and remove airborne contaminant.Illustrate in this patent that air entry and inflatable mouth separate along vertical, with guarantee air from ceiling to floor movements.That file does not illustrate and relies on wall attachment effect to make air jet be attached to ceiling that also explanation does not rely on wall attachment effect to make the suction air-flow be attached to the floor.That file is not described the existence of " the interference shunting air stream of inclination " that may rise to ceiling from floor tilt ground yet.This patent is not described any measure that is used to avoid this phenomenon.At last, from it accompanying drawing as can be seen, its suction grille and the blowing grid size be similar.Its result, cold air blast velocity and air-breathing speed are about equally.

The United States Patent (USP) 5,225,167 of Wetzel has disclosed a kind of airborne device that dyes thing that accounts for that independently is used to remove, and that device roughly is rectangular shape, is installed on the wall in room, and removes airborne contaminant with ultraviolet lamp and HEPA filter.It is from close floor but has the position of certain distance to pass through the grid suck air to the floor.At the HEPA filter blow out air that passes through the quadrant cylinder body shape near the ceiling place.This patent is not described and is relied on wall attachment effect to make air jet be attached to ceiling by any way, describes to rely on wall attachment effect to make suction air stream be attached to the floor yet.The blowing mouth of the HEPA filter of quadrant cylinder body shape might make the primary air jet flow that blows out blow to the floor obliquely, and is unfavorable for that the primary air jet flow relies on wall attachment effect to become and is attached to ceiling.Intentionally being placed to the floor has the air entry of a distance to be unfavorable for setting up the inspiratory flow that the dependence wall attachment effect is attached to the floor equally.This patent is not described the existence that may rise from the floor to " the interference shunting air stream of inclination " of ceiling by any way.This patent is not described any measure that is used to avoid this phenomenon.At last, from it accompanying drawing as can be seen, its suction grille and the blowing grid size be similar.Its result, cold air blast velocity and air-breathing speed are about equally.

The United States Patent (USP) 5,616,172nd of Tuckerman, Russel, Knuth and Carey, the most approaching prior art of the present invention.It has disclosed a kind of wheeled apparatus of independently removing airborne contaminant, and the sort of device roughly is rectangular shape, can be placed to vertically along by the wall in treated room.Remove airborne contaminant with ultraviolet lamp and HEPA filter.The air intake mouth of air-breathing form between bottom by being formed in device and the floor, on the aspect of floor is from the floor suck air.Blowing mouth is arranged in the top of device, dries to ceiling vertically.The shape of device is the height of doing it thinly wittingly, increasing air-inlet grille and the distance of drying between the grid, thereby avoids " short circuit " between them.Also described being installed in the wind-guiding impeller of blowing on the grid, with so that the primary air jet flow of producing by boasting from the top of device tilt and the primary air jet flow flowed along ceiling to ceiling.Though this patent is not said clearly, can imagine that is to make the primary air jet flow rely on wall attachment effect to be attached to ceiling.But this patent thinks that the measure that is used to avoid " distributary phenomenon " between suction grille and the blowing grid just is to draw back as far as possible distance between the two.The sort of layout is necessary really.Yet patent documentation is described and shown in the explanation that below will provide as previously mentioned, and that is not enough.At first, this patent do not have to consider may be from the floor (middle part) in the room rise along the path that tilts by the people zone being arranged upwards to the existence of " the interference shunting air stream of inclination " of blowing mouth diffluence.This patent has just been paid close attention to direct " shunting " between air-breathing and the blowing, and this is another problem.

So, can think that this patent is not recommended any measure to following aspect:

Ratio between air-breathing speed and the cold air blast velocity;

Or the ratio between effective air-breathing area and the effective blowing area; Although be the distance that has widened between air-inlet grille and the blowing grid, that is not with reduction or eliminates " the interference shunting air stream of inclination " that may flow to ceiling from the middle part rise on floor is purpose.

Do not stipulate effective getter surface and the relative size on the surface of effectively drying.Yet regrettably, if do not take these the concrete precautionary measures about shape and flowing velocity, that between provable blowing grid of above-mentioned scientific paper and the explanation that below will provide and the suction grille is not enough for eliminating " the interference shunting air stream of inclination " phenomenon at interval.

As mentioned above, those those skilled in the art that think: air entry is not too important in air movement, and air entry is influential nearby to them only.To show that hereinafter those those skilled in the art that are wrong in this.We can say that prior art is never sufficiently paid close attention to the shape of air entry and the influence of position.Clearly, so far this problem is not carried out any scientific research as yet.

So, clearly, though be known and be widely used in field of air conditioning heat control aspect by utilize to rely on wall attachment effect to be attached to the primary air jet flow of ceiling and be attached to the method for ventilation that the inspiratory flow on floor mixes, but, it in fact also is not used to remove owing to " the interference shunting air stream of inclination " phenomenon swims in the field of airborne contaminant so far, never solves the phenomenon that this meeting makes the performance decline of removing contaminant in the prior art.

Summary of the invention

The present invention at first relates to a kind of by utilizing the primary air jet flow that relies on wall attachment effect to be attached to ceiling to mix the method for giving ventilation of room with the inspiratory flow that is attached to the floor.More particularly, the present invention relates to the method for ventilation of this pattern, wherein, (heating through anticipating, cooling, remove contaminant, humidification, dehumidifying,) the primary air jet flow by aliging with one " processing " sidewall (" treatment " side wall), blowing surface near ceiling blows out, and the orientation angle of blowing [mean direction of the various piece of primary air jet flow (mean direction) is at the lip-deep mean value of blowing] is orientated towards ceiling (or being parallel to ceiling), makes the described primary air jet flow that blows out rely on wall attachment effect to be attached to the surface of ceiling.Simultaneously, with a flow of the flow that is equal to the primary air jet flow, by dirty air stream, this getter surface is roughly vertical and is placed as and aligns with same processing sidewall and near the floor in room by a getter surface inspiration one.By this way, can guarantee to press close to the floor and suck air, inspiratory flow is approximate horizontal, be parallel to and rely on wall attachment effect to be attached to the floor.

Utilization is attached to the elementary blowing air jet of ceiling and is attached to the ventilating system that the inspiratory flow on floor is mixed, the present inventor has carried out the experiment and the computer simulation of experience, and its result shows: the ventilation of this form can cause rising from the floor, cross the people zone, flows to the appearance of " the interference shunting air stream of inclination " of blowing mouth along an acclivitous path flow in the room of sealing.In the prior art He in the above-mentioned document this phenomenon all there is sufficient description, but does not find to be intended to eliminate any measure of this phenomenon so far as yet.

With the simplest form, except others, method of ventilation of the present invention is: make average cold air blast velocity Vs (mean value of the speed of the various piece of the primary air jet flow on the blowing surface of flowing through) be lower than average suction speed Va (mean value of the speed of the various piece that is inhaled into air stream of the getter surface of flowing through) (Vs＜Va).Each inventor of the present invention, by with computer model and to implement this method independently, be used to remove the air flow measurement that the device of airborne contaminant in the room carries out and have been found that: when implementing measure of the present invention, described " the interference shunting air stream of inclination " phenomenon can be reduced even be eliminated widely.

Description of drawings

Fig. 1 is illustrated in the diagrammatic side view that suspended particulate substance in the non-room with good ventilation sinks and gets back to floating phenomenon.

Fig. 2 is the diagrammatic side view that is illustrated in the distribution of " short room " lining air stream, this room is ventilated (not having special precautionary measures), and draft type is to mix (patent that is replicated in Muller) with primary air jet flow that is attached to ceiling that blows out and the inspiratory flow that is attached to the floor.

Fig. 3 is the diagrammatic side view that is illustrated in the distribution of " between the eldest branch of a family " lining air stream, this room is ventilated (not having special precautionary measures), and draft type is to mix (patent that is replicated in Muller) with elementary blowing air jet that is attached to ceiling and the inspiratory flow that is attached to the floor.

Fig. 4 a is a diagrammatic side view, its expression is carried out the airflow distribution that computer simulation obtains to being operated in one by the ventilation unit in the room with good ventilation (the sort of pattern shown in Figure 2), and draft type is according to the present invention professor, mix with the inspiratory flow that is attached to the elementary blowing air jet of ceiling and is attached to the floor.

Fig. 4 b is a schematic isometric, its expression is carried out the airflow distribution that computer simulation obtains to being operated in a quilt according to the present invention's ventilation unit (the sort of pattern shown in Fig. 4 a) professor, that carry out in the room with good ventilation, and express effective getter surface and blowing surface on the sidewall of the ventilation unit that is used for Fig. 4 a with a zoomed-in view, so that relatively their relativeness and average suction speed and cold air blast velocity.

Fig. 5 a is the schematic diagram of a part of the air stream of motion, and it is convenient to analyze ground and explains with the attainable advantage of the present invention and " the interference shunting air of inclination flows " is eliminated.

Fig. 5 b is the schematic diagram of the digital simulation condition of expression air flow distribution figure, and these flow distribution figure draws for the model machine that independently, is used to remove the device of airborne floating thing of the present invention.

Fig. 5 c is a numerical tabular, and it provides the result who draws with the numerical simulation calculation shown in Fig. 5 b.

Fig. 5 d is the curve map of the result among the presentation graphs 5c.

Fig. 6 to one according to the present invention professor, be operated in and independently remove the diagrammatic side view that the contaminant device carries out the air stream that computer simulation obtains in the room.

Fig. 6 a and 6b are cutaway view and the stereograms of independently removing the larger proportion of contaminant device of the present invention.

Fig. 6 c is the vertical view of work of the device of presentation graphs 6d, has expressed the air stream streamline that flatly produces.

Fig. 6 d is the diagrammatic side view of larger proportion of the air intake mouth of independently removing the contaminant device (intake nozzle) of Fig. 6, and has expressed it to the floating effect of being infected with particle and the particle on the aspect of floor.

Fig. 6 e is the schematic isometric of expression device of the present invention together with its inspiratory flow.

Fig. 7 be one of expression according to the present invention professor, be operated in operation principle in the room, that remove the contaminant device and to the diagrammatic side view of the effect of floating substance.

Fig. 8 a and 8b are the cutaway view and the stereogram of the blowing mouth of independently removing the contaminant device of Fig. 6, and express its position with respect to ceiling.

Fig. 8 c is several side views to 8h, and the influence of blowing direction angle to the blowing carried out with device of the present invention adjusted in their expressions.

Fig. 9 a and 9b are several side views, and be that their expression the present invention recommend, about the importance of the scheme of adjusting air-breathing speed and cold air blast velocity.

Figure 10 a is the stereogram of detailed structure of second embodiment of expression blowing mouth of the present invention.

Figure 11 is the stereogram of detailed structure of a preferred embodiment of expression air intake mouth of the present invention.

Figure 12 is the stereogram of representing in the present invention for an embodiment of preferred, as to have reduced thickness vertical ventilator device (vertical trunkmeans).

Figure 13 a and 13b are the stereograms of representing in the present invention for an embodiment of the vertical ventilator device of preferred, height-adjustable.

Figure 14 a and 14b are the stereograms of an embodiment of the device of presentation graphs 6, and this device has and is preferred one auxiliary air intake mouth in the present invention.

Figure 15 a and 15b are the stereograms of an embodiment of the device of presentation graphs 6, and this device has and is preferred one extensile blowing mouth (blow nozzle) in the present invention.

The specific embodiment

Fig. 1 expresses a common non-room with good ventilation 3.Be full of among the room air A that this room is 3 li a large amount of think floating substance be infected with particle 4, these particles they own wt and the effect of gravity under owing to settlement action 5 attracted to the aspect on floor 6.Its result, being infected with particle 4 and will little by little being collected in the very thin air bottom Cc that highly is infected with and contacts with very low vertical sinking speed 5 motion with floor 6.If the particle 4 of being infected with to 3 li in room is investigated, in the suspension in the main volume in room 3, a part be very little to be infected with the particle 4 of being infected with that the floating substance form is present in suspended state 4a, although it is extreme dangerous to the people in the room 1.Under the effect of gravity, owing to come from the thermal convection current campaign and the Brownian movement on floor 6, the form that particle 4 is infected with floating substance 4b cloud cluster with very dense gathering of being infected with of another part accumulates in the air bottom Cc very thin, that highly be infected with.The concentration of gathering of being infected with floating substance 4b is big more near floor 6 more.But it is adherence particle 4c that the major part that is present in 3 li in room is infected with particle 4, and under the gravity effect after long-term the decline, molecule that their rely on them is adhered to floor 6 with the Robert Van de Walle power of the generation of the interaction between the floor 6.Someone zone 2 is that room 3 back warps often have that part of of people 1.Usually it be restricted to a surface from wall 51 indentation 50cm in the room that window is arranged, from other each wall 140 in the room indentation 20cm and from the floor 6 spaces that extend up to 180cm.

When people 1 in the room 3 li produce disturbance and the turbulent flow on the aspect of floor 7 when walking about, then produce the erratic flow 8 of rising type, this erratic flow makes is again having some the contaminant 4b that gathers on floor, bottom 6 aspects in people zone 2 and the particle 4c of adhesion to get back to suspended state.3 li a kind of phenomenon that is similar to the big cloud cluster that has generated random cumulus form in the weather system occurred with less ratio in the room.From the illuminating lamp 54 that is installed in 20 li on ceiling or impinge upon floor 6 by the light 53 that window 51 is come in and make it to be heated unevenly.Its result produces the powerful convective motion 57 that makes progress on the aspect of floor, this make again gather be infected with floating substance 4b and on floor 6 some among the adhesion particle 4c get back to the state of a large amount of suspensions.These are infected with the top that floating substance (4b, 4c) rises to people zone 2, so that arrive people 1 mouth and the zone 9 that people breathe.Its result, the floating substance (4b, 4c) of being infected with of being got back to suspended state by these phenomenons lanes increases the concentration of being infected with floating substance 4a that is in suspended state.The people 1 that increased 3 li in room suck and are infected with the danger of floating substance, thereby possibility that the microorganism that makes people 1 be come from microorganism floating in the air is infected with increases, and this may lead to various diseases (for example aspergillosis, tuberculosis ...).

Prior art adopts widely by utilization and is attached to an elementary blowing air jet 19 of ceiling 20 and is attached to the method for ventilation that the inspiratory flow 21 on floor 6 is mixed similarly, and the both relies on wall attachment effect C.How the method for ventilation that Fig. 2 and 3 expresses prior art ventilates with the built-in ventilation unit 65 of building in the building that comprises room 3.In the prior art, in advance with built-in ventilation unit 65 handle (promptly heat, cool off, remove contaminant, humidification, dehumidifying ...) primary air jet flow 19 be blown into room 3 by the blowing mouth on the wall 10, this blowing mouth 10 is formed on " treated (treatment) " first vertical wall 52 and drives to room 3 by the surperficial Ss of a blowing, and the surperficial Ss that dries aligns with treated vertical wall 52 and near ceiling 20.Primary air jet flow 19 blows out along a blowing direction Is (mean value of the mean direction of the various piece of primary air jet flow 19 on the surperficial Ss of blowing), and this blowing direction Is can be orientated towards ceiling 20 (perhaps being parallel to ceiling 20 usually as shown in Fig. 2 and 3), so that described primary air jet flow 19 relies on wall attachment effect C to be attached to the surface of ceiling 20.With primary air jet flow 19 concurrently, be sucked out by air entry 11 by dirty air stream 21, the flow of sucking-off is equal to the flow of primary air jet flow 19, air entry 11 is formed on the treated vertical wall 52 and drives to room 3 by the roughly vertical getter surface (SA) that aligns with same treated vertical wall 52, but near the floor 6 in room 3.This can guarantee air A on the aspect on floor 6 by form sucking-off with inspiratory flow 55 convergent, that press close to floor 6, inspiratory flow 55 is approximate horizontal, be parallel to the surface on floor 6, and relies on wall attachment effect C to be attached to floor 6.Primary air jet flow 19 is advanced between the enveloping surface 63 that people zone 2 is arranged and its accompanying ceiling 20 surface in the outside that people zone 2 is arranged.Its result, primary air jet flow 19 advanced along a long path before arrival has people zone 2 and mix with a large amount of room air A gradually.This mixing can make dirty air be watered down by new air, the effect that can produce the air-conditioning effect and remove contaminant, the purpose that this ventilates just.The advantage of this layout is to make people 1 experience the temperature of the most comfortable.Built-in ventilating system 65 comprises an extraneous air treating apparatus 73, and it generally is installed on the roof of building.Represented device 73 comprises the blowing and the getter assembly of a combination, and it is the circular treatment air with the usual manner work of this area.It comprises be used to make air movement and set up air flow route (air flow scheme) one or more centrifugal or other pattern blower fan (67,71), heater 70, air cleaner 69 and be used for mixing cabinet 68 with one of the air of the new air mixing circulation of outside.Air processor 73 is connected in a wind-distributing pipe road 72 that opens wide with the blowing mouth 10 that is installed on the wall, can transfer out treated in advance primary air jet flow 19 by the surperficial Ss that dries like this.66 air entries 11 that are installed on the wall of aspirating air pipe are connected in the import of air processor 73, so that 3 extractions are by dirty and/or contaminated suction air stream 21 from the room.

Fig. 2 expresses the glide path (being replicated in Muller) of air stream, and it obtains with prior art in " short room " 3a, and the length L in this room is less than about 3 times of its width.This causes forming the envelope stream B1 of " circulation ".As can be seen: (when not taking any special measure) in the prior art, " the interference shunting air stream of an inclination " Fs has appearred, and it 6 rises and has been upward through people zone 2 with the direction that tilts and flow to the surperficial Fs of blowing from the floor.Will be understood that: 6 " the interference shunting air stream of inclination " Fs that rise can make contaminant 4b, the 4c with the adhesion that gather on the aspect of floor get back to suspended state and become floating substance from the floor, and its result is similar to reference to Fig. 1 described like that.On the path that these contaminants 4b, 4c make progress, they increase the content of floating contaminant among the room air A in 3 li in room.Like this, in the prior art, in " short room " 3a that is mixed into the wind that works with the primary air jet flow 19 of adhering to, because the existence of " the interference shunting air stream of inclination " Fs, the danger that causes floating microorganism to be infected with has increased.

Fig. 3 expresses the glide path (from making amendment of Muller) of air stream, and it obtains with prior art in so-called " between the eldest branch of a family " 3b, and the length L in this room is greater than about 3 times of its width.As can be seen: this " between the eldest branch of a family " 3b by several air flow points become several air section Z1, Z2, Z3 ...In the Z1 of first area, formed first air circulation B1 that is similar to " sealing " of the circulation that obtains in " short room " shown in Figure 2.It is made of the primary air jet flow 19 that blows out along ceiling 20, and it turns round downwards before flatly turning back to getter surface Sa and become a shunting air stream that roughly passes the inclination in people zone 2 at the middle part of " between the eldest branch of a family " 3b pasting floor 6.Except also having " the interference shunting air stream of the inclination " Fs that rises from floor 6, between the wall 50 of the other end in first circulation B1 and room 3, in regional Z2, Z3 in succession, generated formation eddy current 12a, 12b other " sealing " air circulation B2, B3 ...Air circulation B2, the B3 of these " sealings " ... passed people zone 2.Second kind of such phenomenon why can occur, be because the length L in room 3 is big, and primary air jet flow 19 breaks away from zone 14 at one prematurely and broken away from ceiling 20.Then, primary air jet flow 19 no longer is attached to ceiling 20, has flowed but can be called as free air.This also cause a series of pacesetting effect (velosity induction effect) 30a, 30b ..., and the formation that causes secondary eddy current 12a, 12b, in secondary region Z2, Z3, form then " sealing " air circulation B2, B3 ...Be suspended in " sealing " air circulation B2, B3 ... secondary eddy current 12a, 12b in the floating substance 4a that is infected with become by eddy current and carrying under one's arms, and be held away from built-in ventilation and remove blowing and getter surface Ss, the Sa of contaminant system 65., suspending be infected with floating substance 4a may by each exchange area 17a, 17b air circulation B1, the B2 of each " sealing ", B3 ... between shift, 3 these exchange areas when being in poised state are to exist with stable status in the room.So the whole volume in room 3 does not obtain best processing, because being infected with aspect the floating substance 4a in removing suspension, the processing effect of removing contaminant has reduced.In addition, will be understood that: by air circulation B1, B2, B3 ... the increasing of the number that moves upward that causes can make the degree of having gathered and be adhered to 6 surfaces, floor that floating substance turns back to suspended state of being infected with increase, thereby the danger that makes the people 1 in 2 li in people zone be infected with by microorganism increases.In order to reduce the danger that be infected with by microorganism via air, for " short room " 3a, the method for ventilation of preferably implementing to utilize the primary air jet flow of adhering to mix.

Fig. 4 a and 4b be expression to the schematic diagram of " short room " 3a with method of the present invention measure that implement, that characteristics are arranged, its objective is and reduce greatly or even eliminate " the interference shunting air of inclination flows " the Fs phenomenon shown in Fig. 2 and 3.This method of the present invention adopts the General Principle of the method for ventilation shown in Fig. 2, mixes with the inspiratory flow 21 that is attached to floor 6 with the primary air jet flow 19 that relies on wall attachment effect C to be attached to ceiling 20 exactly.But the evident characteristic of this method of the present invention is to make average cold air blast velocity Vs (mean value of the speed of the various piece of the primary air jet flow 19 of the surperficial Ss of blowing that flows through) to be lower than average suction speed Va (mean value of the speed of the various piece getter surface Sa that flows through, that be inhaled into air stream 21) (Vs＜Va).

Although it is simple, but can eliminate " the interference shunting air stream of inclination " Fs phenomenon with these devices of the invention process, like this, aspect the air supporting depollution, can provide very big advantage (not reaching in the prior art), can prove this point with Bernoulli's theorem analysis with reference to Fig. 5 a.

Fig. 5 a is the detailed maps of a part of the air stream of expression continuous motion.For easy, suppose that air A is incompressible perfect fluid of a gravitate.We consider the very small percentage da of the moving air among this air stream vf.

That the minimum air part da that belongs to air stream vf has:

Section variable s;

The speed variable V;

Length variable dx;

Quality dm; And

Local pressure P.

The density p of supposing air is constant.Acceleration of gravity is constant g.

Consider that with first approximation total mechanical energy Et of the minimum part da of that of air comprises:

Its kinetic energy Ec=1/2dm * V ²

Its pressure potential Epr=P * s * dx=β * dm/

And its gravitional force Epe=g * z * dm.

Consider that with first approximation total mechanical energy of the minimum part da of that of air is to flow the Vf conservation along the air that moves.

Like this, the unit mass for the air that moves along the whole air stream vf that moves, can derive following expression formula:

V ²/ 2+P/r+g * z=constant

This is the expression formula of a Bernoulli's theorem, and 3 li along the room, not exist under the situation of any energy loss (hereinafter will pay attention to) be effective to whole moving air stream vf.

With reference to Fig. 2, proving with " reduction to absurdity " below needs with measure of the present invention (be average cold air blast velocity Vs must less than average suction speed Va), to guarantee that 3 li " the interference shunting air of inclination flows " Fs phenomenon can not occur in the room shown in Fig. 2.

If there is not " the interference shunting air stream of inclination " Fs phenomenon, the whole air-flows from the surperficial Ss of blowing just will all enter getter surface Sa so.If consider the air stream vf of various motions, so:

From average cold air blast velocity is that Vs, blow pressure are Ps, highly are the blowing of h surface Ss,

To average suction speed is that Va, pressure of inspiration(Pi) are Pa, highly are zero getter surface Sa,

All air-flow will be continuous along their length, can be dispersed into many sub-jet flows (sub-jet) without any air-flow in the middle of them.To be reasonably with average form to its application Bernoulli's theorem at surperficial Ss of whole blowing and getter surface Sa, so:

Vs ²/ 2+Ps/r+g * h=Va ²/ 2+Pa/ ρ (average Bernoulli Jacob's value)

Importantly will emphasize: the existence of these air-flow vf that do not disperse just makes it possible to use Bernoulli's theorem with average form.Have only under these circumstances, can suppose that just the whole air stream vf from the surperficial Ss of blowing can arrive getter surface Sa, and vice versa.If there is " the interference shunting air stream of inclination " Fs to exist, this is just not right.

But, clearly,, need Ps＞Pa because air is blown into room 3 by the surperficial Ss that dries and is sucked out by getter surface Sa.

Suppose Vs＞Va now.Under these circumstances, the left side item of aforesaid equation (average Bernoulli Jacob) is inevitable greater than equational the right item as can be seen.Must draw and to satisfy the such conclusion of equation that draws with Bernoulli's theorem.This can be expressed as follows:

(room does not have " the interference shunting air stream of inclination " Fs for 3 li)

And (Vs＞Va)

=＞can not satisfy averages the Bernoulli's theorem (Bernouilli ' s theorem averaged) of form to dry surperficial Ss and getter surface Sa.

The mathematical logic conversion method of above-mentioned expression formula provides:

Bernoulli's theorem satisfied=＞

(there is " the interference shunting air stream of inclination " Fs in the room for 3 li)

Or (Vs＜Va)

This shows: measure of the present invention, promptly Vs＜Va is to make 3 li in room a necessary condition of " the interference shunting air stream of inclination " Fs phenomenon not occur.

In fact, real condition is stricter.In the continuous-flow of the air stream vf of motion, such as and the friction of the wall in room 3 the effect of external force under and particularly because the inducing action between the air A in 3 li in primary air jet flow 19 and room, the part of total mechanical energy has been consumed.Between the two ends of the air stream vf that moves, consumption is arranged, produce friction head loss (friction head loss) Δ H.Air stream vf that is applied to move and the Bernoulli's theorem that influences correction that loses at this friction head become:

Vs ²/ 2+Ps/r+g * h=Va ²/ 2+Pa/ ρ+Δ H (considering the Bernoulli's theorem of head loss)

Like this, want 3 li in room and " the interference shunting air stream of inclination " Fs do not occur, necessary:

(Va ²-Vs ²)/2＝(Ps-Pa)/ρ+g×h-ΔH

Va ²-Vs ²+2×[(Ps-Pa)/ρ+g×h-ΔH]

That is:

Va＜(Vs ²+2×[(Ps-Pa)/+g×h]) ^1/2

This causes following condition:

Vs＜Va＜(Vs ²+2×[(Ps-Pa)/ρ+g×h]) ^1/2

If average suction speed Va, will form " the interference shunting air stream of inclination " Fs so less than average cold air blast velocity Vs, Bernoulli's theorem also no longer is suitable for its average form.If average suction speed Va is greater than average cold air blast velocity Vs, " the interference shunting air stream of inclination " Fs phenomenon will die down so, tend to zero gradually.Average suction speed Va is big more greater than the degree of average cold air blast velocity Vs, causes air to be mixed in primary air jet flow 19 and the phenomenon of inducing that head loss Δ H increases occurs easily more.Above-mentioned this second restriction (second limit) is:

Va＞(Vs ²+2×[(Ps-Pa)/ρ+g×h]) ^1/2

Can suppose: wall attachment effect C may not can be established again, and the motion of existence mainly is a turbulent flow.

Yes for this based on the proof of the supposition of highly simplifying, though this make it possible to understand with respect to average cold air blast velocity Vs adjust the importance of average suction speed Va and understand that the present invention recommends simply the practical measure (importance of Vs＜Va).

Fig. 4 a expresses the inventor in the mode of highly signal and is experimentizing and using the result who obtains after the computer simulated air stream.This figure shows: the glide path of the air A that the room is 3 li is similar to the room shown in Fig. 2, but wherein in the measure of average cold air blast velocity Vs to having taked the present invention to recommend aspect the ratio of average suction speed Va.Calculate and show from the air flow field simulation: 3 li when implementing measure that the present invention recommends in the room in these results that measure that the prototype devices of having implemented described measure is carried out, just guarantee average cold air blast velocity Vs (mean value of speed of the various piece of the primary air jet flow 19 of the surperficial Ss of blowing that flows through) be lower than average suction speed Va (mean value of the speed of the various piece that is inhaled into air stream 21 of the getter surface Sa that flows through) (during Vs＜Va), " the interference shunting air stream of inclination " Fs phenomenon of the prior art that decayed widely (even being eliminated) is shown in Figure 2.This " the interference shunting air stream of inclination " Fs phenomenon mainly is the induction force that produces owing to by primary air jet flow 19.When induction force that the inspiratory flow 21 that floor 6 flow produce increases the induction force that is produced by primary air jet flow 19 is reduced by making by pasting, the interactional balance of this two type of motion makes and can rely on wall attachment effect C to keep inspiratory flow 21 to be attached to floor 6.Watering down of the air that the room is 3 li with closely related in the blowing outlet and the air mass flow at the suction inlet place on getter surface Sa of blowing on the surperficial Ss.Purpose of the present invention is not to improve to water down efficient (near 100%), but improves the quality of removing contaminant.Since " the interference shunting air stream of inclination " Fs has been eliminated, because this air flow phenomenon can not take place again makes the situation that floating substance 4 enters people zone 2 of being infected with, the microorganism contaminant mainly is to be confined in the air bottom Cc that very thin height is infected with and can not to enter people 1 breathing area 9, thereby can reduce the possibility that people are infected with by microorganism.

Fig. 4 b is the stereogram of the layout of 3 li enforcements in the room, and it is used for implementing measure of the present invention for 65 li a built-in ventilating system, has expressed the surperficial Sse of effective blowing and effective getter surface Sae.The wall-mounted blowing mouth 10 and the air entry 11 that are used in 65 li of built-in ventilating systems generally are equipped with blowing grid and suction grille 60,61, and they take surperficial Ss of blowing and getter surface Sa and partly hinder air to flow.These grids are to be made of metallic plate with many holes or metal frame and/or other device with many unidirectional laths, and they partly stop corresponding opening 10,11 and allow air to flow through.Effective area Sse, the Sae of grid 60,61 is meant the area in empty negotiable space, and these spaces have identical air-flow character to fluid velocity Vs, the Va by them with pressure P s, Pa.The grid of selling on the market generally all has the specifications that provide its effective area.Perhaps, can measure to experience effective area.In Fig. 4 b, expressed blowing grid Ss and the surperficial Sse that effectively dries, also expressed suction grille Sa and effective getter surface Sae.As can be seen: the surperficial Sa of effective blowing that can guarantee room 3 is greater than effective getter surface Sae.This just can guarantee that average cold air blast velocity Vs is less than average suction speed Va.Also can find out: the primary air jet flow 19 of coming out from the surperficial Ss that dries relies on wall attachment effect C to be attached to ceiling 20 well.The inlet flow that the is pasting floor 6 55 same wall attachment effect C that rely on of inspiratory flow 21 are attached to floor 6 well.The room does not have " the interference shunting air stream of inclination " Fs for 3 li.

Fig. 5 b represents to be used for the digital simulation condition of air-flow character, is to be PLASMAIR ^TMThe independently simulation carried out of a model machine of air supporting depollution device (airborne decontamination device) 101, this device according to the present invention in the room 3 li carry out work with different effective blowings than (effective blow ratio) RS.Term " blowing ratio " is the effectively surperficial Sse of blowing and the effectively ratio between the getter surface Sae.Digital simulation is carried out under following condition:

Room length L=4m;

Room width l=3m;

Room height=2.5m; And

Air mass flow: Qv=500 cubic meter/hour (m ³/ h).

As shown in Fig. 5 b, used reference axis X, Y and Z in the simulation, each of usefulness P=P1, P2 ... P8 is positioned at above 2cm place, 6 surface, floor.The amount of numerical calculation (speed of Y direction) representative is at each some P=P1, P2 ... the local digital averaging value of the vertical component of the air velocity that P8 obtains,, each distance of putting the front 165 of this air supporting depollution device 101 be respectively d=d1, d2 ... d8.This is the mean value of the vertical component of the air velocity in the cubic metre that cube node independent by nine formed, and these nodes are the purposes that are used to simulate and are in line that the center of each node is respectively on simulation points P.Air supporting depollution device 101 is placed to the middle part that leans against treated wall 52.Set up the air movement equation according to Na Weier-Stokes (Navier-Stokes) equation with an E-K energy model.Though flow regime under consideration is a turbulent flow, but the state of the space scale of the motion of being studied is more much bigger than Cole Mo Geluofu (Kolmogorov) yardstick that is used for the fluid particle thing (description of molecular level (molecular type)), so, can use Na Weier-Stokes (Navier-Stokes) equation really.Digital simulation has adopted the graduation (smoothing) of air molecule motion.Have been found that before: as long as fluid velocity keeps below Mach number 13, the application of this digital simulation method is reliably, and opposite example is not arranged so far as yet.Here that's how things stand.Selected node types is hexagonal, provides the simple structure in room 3.Set up the model in room 3 with 500,000 nodes altogether.This number it has been generally acknowledged that than being used to carry out such research enough numerals 3,000 are much bigger.With the definition of the Y direction speed at each point P place, will be understood that this may be on the occasion of or the parameter of negative value represent rising or the descending motion of 3 li of air A just in the room.

Like this, if the Y direction speed that P is ordered is positive, then its mean near the P point at 6 above 2cm places, floor air velocity have one to rise average weight.Under these circumstances, can infer that having mainly is 6 air-flows that make progress from the floor near the P point.Can get conclusion thus: have " the interference shunting air stream of inclination " Fs probably from this some beginning.

On the contrary, if the Y direction speed that P is ordered bear, then its mean near the P point air velocity have one to descend average weight.Can get conclusion thus: have " the interference shunting air stream of inclination " Fs hardly from this some beginning.

The form of Fig. 5 c has provided the result who obtains by simulation.In this form, first row be the simulation some P=P1, P2 ... P8.Secondary series (having added shade) is the situation that air supporting depollution device 101 is set, and it is set to blowing and equals 0.57 than RS (ratio of effectively dry area Sse and effective air-breathing area Sae), less than 1.In other words, this configuration is not within the condition that the present invention applies.This is some conditions that may form " the interference shunting air stream of inclination " Fs, as the theory analysis that provides is previously foretold.

Corresponding to this 101 controlled states, it is adjusted to blowing and equals 1 than RS the 3rd row (having added shade).For " the interference shunting air stream of inclination " Fs whether occurring, this is the configuration of a boundary, as the theory analysis that provides is previously foretold.

Secondary series and the 3rd row all added shade, be for the condition that clearly illustrates that them be to be in outside the recommendation of the present invention.

At last, the 4th row (not adding shade) are adjusted to its blowing than the situation greater than 1 (RS=1.43) corresponding to air supporting depollution device 101.Be that these conditions are within the condition that the present invention applies.

At the Va=0.57Vs of secondary series is under the condition of Va＜Vs, as can be seen: away from the P4 of air supporting depollution device 101 to the P7 each point, the local digital averaging value of the vertical component of air velocity is positive.This means that 3 li those parts away from air supporting depollution device 101 have air movement upwards in the room.Have reason to reach a conclusion: " interference of inclination shunting air stream " Fs is in that part of 3 rises to blowing mouth 110 from the room.Under such condition, because 6 air-flows that rise from the floor are arranged, 101 systems as the air supporting depollution are very invalid with air supporting depollution device.

Under the condition of tertial Va=Vs, equally as can be seen: away from the P5 of air supporting depollution device 101 to the P7 each point, the local digital averaging value of the vertical component of air velocity is positive.With above-mentioned the same, this means that 3 li those parts away from air supporting depollution device 101 have air movement upwards in the room.Can reach a conclusion: " interference of inclination shunting air stream " Fs is in that part far away of 3 flows to blowing mouth 110 from the room.Under such condition,, be very invalid equally as the system of air supporting depollution with air supporting depollution device 101 because 6 air-flows that rise are arranged from the floor.

On the contrary, the Va=1.43Vs at the 4th row is under the condition of Va＞Vs, as can be seen: to P8, the local digital averaging value of the vertical component of air velocity is all born at all each point P1.Can reach a conclusion: the room does not have " the interference shunting air stream of inclination " Fs for 3 li.Under such condition, because 6 air-flows that rise from the floor not, 101 systems as the air supporting depollution are very effective with air supporting depollution device.

Can more be clear that ability method of the present invention, that eliminate " the interference shunting air stream of inclination " from the curve of Fig. 5 d.This curve map, to above-mentioned three blowings than in each, drawn out the relation between the position of Y direction speed on each simulation points on the floor 6 in Fig. 5 b and each point.As can be seen: than RS, the Y direction rate curve (Y speed＞0) that enters the shadow region shows and exists " the interference shunting air stream of inclination " for given blowing.The proof of these numerals makes and can reach a conclusion: condition Va＞Vs that the present invention recommends, perhaps say with being equal to, effectively blowing area Sse always by those skilled in the art that is thought inevitably before in elimination that greater than effective air-breathing area Ssa aspect " the interference shunting air stream of inclination " Fs be effective.

The principle of the method for the defective that can overcome prior art of the present invention can be advantageously at PLASMAIR ^TMIndependently implement in the air supporting depollution device 101.An independently portable air supporting depollution device 101 of the present invention is shown in Fig. 6, and it can be installed in the short room 3a, in order to implement the method for ventilation that utilization of the present invention relies on primary air jet flow 19 that wall attachment effect C adheres to and inspiratory flow 21 to mix.This air supporting depollution device 101 comprises the vertical ventilator device 103 of vertical layout.It is designed to be able to be placed to the treated first vertical wall 52 of almost parallel ground near processed short room 3a.Ventilator device 103 has the first air-breathing end 104 that is used in the bottom, the floor 6 in its close short room 3 bottom it, but have with it at interval.Second end 105 that is used to dry that ventilator device 103 also has at the top, it is positioned at eminence.It is designed to can be positioned on the top of short room 3a, near ceiling 20 but have with it at interval.Air supporting depollution device 101 is equipped with and is used to device 106 that air A is flowed.This device is mounted in the inside of vertical ventilator device 103.It can set up the top 105 of blowing and the pressure differential Δ P=Ps-Pa between the air-breathing bottom 104, so that the air A of device outside moves.They also are used to make air Ac, the Ad of 103 li in ventilator device to move.One on the floor skin effect air intake mouth 118 at 6 places stretches out ventilator device 103 from the suction end 104 of ventilator device 103.It is mounted to the floor 6 in the face of short room 3a.Air intake mouth 118 provides an air entry 111, and this air entry 111 has the getter surface Sa near floor 6.This getter surface Sa has a roughly vertical admission section (inlet section) 109.This getter surface Sa is made of the annular space of sky, but in order to represent clearlyer, represents it in the mode that adds top shadow to it.It is illustrated in the lower right corner of Fig. 6 in the mode that flattens and launch.6 aspect works on the floor for it, and is the inspiration approximate horizontal, that be parallel to floor 6, rely on wall attachment effect C to be attached to the air of 55 li of the inspiratory flow on floor 6.In Fig. 6 e, can be more clearly visible inspiratory flow 55.The skin effect blowing mouth (surface effect blownozzle) 129 that is adjacent to ceiling 20 is positioned at the blowing end 105 of ventilator device 103.It is designed to and can installs near ceiling 20 ground.It provides a blowing mouth 110 at its top.The blowing surface Ss that this blowing mouth 110 is porous, it is arranged on each edge 119a, 119b, 119c and the 119d of blowing mouth 110 basically frontward and laterally.This is shown in the upper right corner of Fig. 6 with bigger schedule of proportion.Blowing mouth 110 works by its surperficial Ss of whole blowing and produces upwards (or flatly) directed primary air jet flow 19, make primary air jet flow 19 blow to (or parallel with it) on the ceiling 20, so that rely on wall attachment effect C to make the primary air jet flow 19 that blows out be attached to ceiling 20.Be used for the contaminant device (filter and/or destroy) 127 of removing of being infected with that particle 4a, 4b, 4c work of air A is installed in the vertical ventilator device 103, between air intake mouth 118 and blowing mouth 129.This device is further separated its section S in the inside of ventilator device 103, with force contaminated air Ac flow through between the zone that is subjected to contaminated area 113 and downstream 114 of upstream this section, in this section, removed the contaminant in the air Ad at least in part.This air supporting depollution device 101 also has characteristics, and the effective getter surface Sae (being illustrated in the lower right corner) of getter surface Sa of air intake mouth 118 that is exactly it is less than the surperficial Sse of effective blowing of the blowing surface Ss of blowing mouth 110.By this way, make average cold air blast velocity Vs (mean value of air jet speed of the surperficial Ss of blowing that flows through) be lower than average suction speed Va (mean value of the speed that is inhaled into air stream of the getter surface Sa that flows through) (Vs＜Va).

With reference to Fig. 6, as can be seen, air supporting depollution device 101 makes through pretreated primary air jet flow 19 and is attached to ceiling 20.Then, primary air jet flow 19 breaks away from ceiling 20 at the other end 14 places of short room 3a, and this makes primary air jet flow 19 flow along the wall 50 of the other end.At last, primary air jet flow 19 arrives floor 6, and it becomes the inspiratory flow 21 that is attached to floor 6 to rely on wall attachment effect C.

With reference to Fig. 6 a and 6b, can be clear that the independently inside and outside member of air supporting depollution device 101.Vertical ventilator device 103 is to be contained in the shell 126 of air supporting depollution device 101.When 101 work of air supporting depollution device, the air Ac that the quilt that the room is 3 li is infected with enters bottom suction end 104 ventilator device 103, that face floor 6 by the skin effect air intake mouth 118 at 6 places on the floor.Pressure of inspiration(Pi) Pa is arranged therein.Then, the air Ac that is infected with has removed big particle in the air Ac that is infected with, that may damage the operate as normal of air supporting depollution device 101 by thick prefilter 120 at this prefilter.Then, the air Ac that is infected with passes through for 122 li from a noise reduction system, blazes abroad by air or solid to avoid noise.This system is made of many parallel baffle plates 107,108, and these baffle plates are mounted to two groups in the both sides of air driven device 106, propagate in air or solid to avoid noise.Air driven device 106 is a centrifugal fan preferably.Then, the air Ac that is infected with is forced through depollution device 127, and contaminant is removed at least in part therein.The air Ac that has been removed contaminant arrives the top 105 of drying and is blown out by blowing mouth 110.These air Ac that have been removed contaminant blowing mouth 110 of flowing through leaves air supporting depollution device 101, and the pressure at blowing mouth 110 places is blow pressure Ps.Can make the working portion of air supporting depollution device 101 devote oneself to work or stop using with an open/close system 124.Four wheels is equipped with in the bottom of air supporting depollution device 101, and it is portable that it is become.Can be easy to it 3 is shifted onto another room by door from the room.Being used to adjust the flow through system 123 of air volume flow of air supporting depollution device 101 can make flow and remove that contaminant requires to be complementary and be complementary with the size in room 3.

With reference to Fig. 6 c, as can be seen: rely on wall attachment effect C adheres to, treated primary air jet flow 19 and rely on the synergy of the inspiratory flow 21 that wall attachment effect C adheres to that the whole people of the having zone 2 in the short room 3a is capped equally in advance.With reference to Fig. 3, as can be seen: be installed in independently portable air supporting depollution device 101 in the short room 3a and that be set to according to work of the present invention and make it possible to as explained before, to avoid again simultaneously " the interference shunting air stream of inclination " Fs phenomenon by ventilating for short room 3a with primary air jet flow 19 that relies on wall attachment effect C to adhere to and inspiratory flow 21.

With reference to Fig. 6 d, as can be seen, air supporting depollution device 101 of the present invention make it possible near the inspiration floor 6 is in suspended state 4a all be infected with that floating substance and in the bottom air Cc that the quilt of the very thin height on next-door neighbour floor 6 is infected with all gather be infected with floating substance 4b, 4c, and along with the such absorption process of sinking (the sort of phenomenon that the front is described with reference to Fig. 1) of floating substance is little by little carried out.This is to be undertaken by the inspiratory flow 21 that is attached to floor 6.

Be infected with floating substance 4a, the 4b that are adjacent to inspiratory flow 21 and are included in 55 li of inspiratory flow are guided into the inspiratory flow 21 that is attached to floor 6 by air-breathing inductive effect (suction induction effect) Ias continuously, then pass through air entry 111, and the process of having born depollution.

Like this, air supporting depollution device 101 of the present invention can reduce the quantity of being infected with particle 4b, 4c of sinking by remove particulate matter continuously.

Thereby the process of deposition dust is very slow on the floor 6, and room 3 needn't clean continually.

Rise to aspect the suspended state (owing to be subjected to convection action or disturbance or the like) at be infected with particle 4b, the 4c that prevent to have deposited, method of the present invention also has very significantly effect again.

Also have owing to " the interference shunting air stream of inclination " Fs can not occur, in fact eliminated usually the sedimentation that causes by it or gather be infected with the phenomenon that particle 4b, 4c rise to suspended state again.

The schematic diagram of Fig. 7 is represented to be installed in the short room 3a and is adjusted to effect according to total depollution of the independently air supporting depollution device 101 of work of the present invention.As can be seen, be to remove in a different manner to the particle 4 of being infected with at diverse location:

The top in room Cs's;

The bottom in room Ci's; And

The middle part in room Cm's.

Elementary blowing air jet 19 that dependence wall attachment effect C adheres to and inspiratory flow 21 cover the whole people of the having zone 2 in the short room 3a.Among the air A in the room 3a all are infected with the process that particle 4 has all born depollution.

At the top in room Cs, the particle 4 of being infected with of the floating substance form of being infected with of suspension is upwards entered elementary blowing air jet 19 to ceiling 20 attractions continuously by blowing inductive effect (blow induction effect).Then, they are forced to along the wall 50 vertical ground of the other end downward, are then carried under one's arms by inspiratory flow 21.

At the middle part in room Cm, be infected with particle 4 and be basically thing from the emission relevant with the people that 2 li in people zone is arranged.Their concentration is very low.In addition, because gravity sinking effect 5, they descend to the bottom in room Ci continuously.

At last, at the bottom in room Ci, the particle 4 of being infected with of the floating substance form of being infected with of suspension is inhaled to enter to floor 6 by air-breathing inductive effect (Ias) continuously and is inhaled into air stream 21.

Owing to there is not " the interference shunting air stream of inclination " Fs, also have the air-breathing inductive effect in bottom (Ias) that is caused by inspiratory flow 21 simultaneously, be infected with floating substance 4b and the adhesion particle 4c that can avoid being collected in the air bottom Cc that the quilt of very thin height is infected with rise to higher part Cs, Cm in the room again.

Its result is inhaled into air stream 21 soon and takes away at the particle 4 of being infected with of each part in room, enters air supporting depollution device 101 subsequently, is removed under the described state of reference Fig. 6 d.Use PLASMAIR ^TMIndependently the depollution test carried out of air supporting depollution device 101 shows: it removes the performance of contaminant in 3 li in room and effect performance and the effect near the laminar flow method of ventilation, but its expense only is the latter's 1/10th.

That the present invention recommends, be used for independently that first advantageous embodiments of air supporting depollution device 101 is shown in Fig. 6 d, 6e and 8b.In this scheme, air intake mouth 118 is the air-breathing pattern in 6 places on the floor, that is, air entry 111 has the bottom first air-breathing wall 132, and it almost is contacted with floor 6 or itself is made of floor 6, as shown in Fig. 6 d.Air entry 111 has the end face second air-breathing wall 133 of the labial lamina shape that is approximate horizontal, and it is that a part by the base plate 137 of air intake mouth 118 forms.This can guarantee that vertical getter surface Sav is unimpeded and is made of the base plate 137 of air intake mouth 118 and the vertical unlimited annular surface 136 between the floor 6.This can guarantee that air form with the air-flow 55 that is attached to floor 6 on 6 aspects of floor is inhaled into, air is from the covering of the fan 138 on a plane, this covering of the fan favours air-breathing from other three walls 50,140,144 of short room 3a, away from treated vertical walls 52.In addition, the vertical getter surface Sav of the air intake mouth 118 of the air-breathing form at 6 places is not stopped on the floor.Its result shows as the surface of an expansion, and it equals its effective getter surface Sae, shown in the lower right corner of Fig. 8 b.As can be seen: effectively getter surface Sae is less than the surperficial Sse of effective blowing (shown in the upper right corner of Fig. 8 b) at the Ss place, blowing surface of blowing mouth 110.This concrete layout of this first scheme makes it possible to synchronously improve floor effect (floor effect) with respect to the air bottom Cc that quilt air-breathing and very thin height is infected with, and can limit the appearance of " the interference shunting air stream of inclination " Fs phenomenon simultaneously.

That the present invention recommends, be used for independently that second advantageous embodiments of air supporting depollution device 101 is shown in Fig. 8 a to 8d.In Fig. 8 a and 8b as can be seen: blowing top edge (blow top edge) 130 to the distance of floor Ds greater than 170cm.This distance is the room that is used to have the standard heights of ceilings that is about 250cm.Meeting this distance can guarantee to form with reference to the described air glide path of Fig. 6.In Fig. 8 c and 8d as can be seen: the porous of the blowing mouth 110 surperficial Ss that dries is provided with a device 163 that is used to guide the blowing air stream 164 that constitutes elementary blowing air jet 19, and it is controlled with handle 167.The ejection angle [alpha] s (the blowing air stream 164 of elementary blowing air jet 19 is the mean value of angle on the surperficial Ss of blowing of H with respect to the horizontal plane) that this guiding device (flow-directingmeans) 163 can be adjusted the jet flow that blows out from blowing mouth 110 can guarantee that this angle is roughly in 20 ° to 70 ° scopes.Fig. 8 e and 8f have expressed the importance of this second kind of layout of the present invention's recommendation.These several figure are the side views that is placed on the air supporting depollution device 101 in the short room 3a, show with reference to the described identical characteristic of Fig. 5 b.Studied the influence of adjusting the ejection angle [alpha] s of blowing mouth 110 with digital simulation.Fig. 8 e is corresponding to α s=20 °, and Fig. 8 f is corresponding to α s=70 °.As can be seen, in the angle adjustment scope of recommending (20 °＜α s＜70 °), satisfy other arrangement condition of the present invention, just can avoid " the interference shunting air stream of inclination " Fs phenomenon.Fig. 8 g is corresponding to α s＜20 °, and Fig. 8 h is corresponding to α s＞70 °." the interference shunting air stream of inclination " Fs phenomenon outside the angle adjustment scope of recommending (20 °＜α s＜70 °), even other arrangement condition of the present invention is all satisfied, also can appear as can be seen.Multizone Z1, Z2 phenomenon can occur during in α s＞70 °, form a plurality of air circulation B1, B2, as reference Fig. 3 " between the eldest branch of a family " be explained, and " the interference shunting air stream of inclination " Fs can occur.During in α s＜20 ° as can be seen: " the interference shunting air stream of inclination " Fs has occurred.

That the present invention recommends, be used for independently that the embodiment of a three-favour of air supporting depollution device 101 is shown in Fig. 9 b.The surperficial Sse of effective blowing of blowing mouth 110 is than effective getter surface Sae of air intake mouth 118 greatly at least 20%.In addition, the volume flow Qv of air driven device 106 is adjusted into and makes average cold air blast velocity Vs (flow through porous dry the mean value of speed of blowing jet flow of surperficial Ss) greater than 0.79m/sec, i.e. Vs＞0.79m/sec.Under these arrangement condition, average suction speed Va (flowing through the mean value of the speed that is inhaled into air stream of getter surface at the air inlet place of porous getter surface) is than average cold air blast velocity Vs greatly at least 20%, i.e. Va＞1.2Vs.When satisfying these specific arrangements conditions of the present invention, just can avoid " the interference shunting air stream of inclination " Fs.

On the contrary, the schematic diagram of Fig. 9 a is corresponding to the result who obtains with digital simulation under the situation of Vs＜0.79m/sec and Va＜1.2Vs.As can be seen: in digital simulation, multizone Z1, Z2 phenomenon can appear when relevant numerical value is in outside the limits value of above recommendation, form a plurality of air circulation B1, B2, " between the eldest branch of a family " explained, and " the interference shunting air stream of inclination " Fs can occur as reference Fig. 3.The special arrangement of this third party's case can limit the appearance of " the interference shunting air stream of inclination " Fs.

That the present invention recommends, independently second preferred embodiment of air supporting depollution device 101 is shown in Figure 10 a.In this second embodiment, there is the dry blowing mouth 129 of surperficial Ss of porous wideer than the mean breadth of ventilator device 103.Such width is perpendicular to that the vertical symmetrical plane of air supporting depollution device 101 measures, and vertically extends to its front portion 165.Also be to be parallel to the first treated vertical wall 52 to measure.Like this, the porous surperficial Ss that dries is bigger, so as to increasing RS is compared in the blowing of the effective air-breathing area Sae that remains unchanged.Like this, can reduce cold air blast velocity VS greatly with respect to air-breathing speed Va.So as to reducing the possibility that " the interference shunting air stream of inclination " Fs occurs.

The concrete enforcement of this second preferred embodiment is described below with reference to Figure 15 a and 15b.Blowing mouth 129 comprises the device 157 of the lateral dimension that is used to widen it.These devices are made up of the flexible cylindrical blowing part 159 of at least one (preferably two, as shown in Figure 15 a and 15b) porous, and they are arranged in the both sides at the top of ventilator device 103.They are arranged to the vertical symmetrical plane PV perpendicular to air supporting depollution device 101.When not starting air driven device 106, the flexible cylindrical blowing part 159 of these porous lets droop, shown in Figure 15 a.But when starting air driven device 106, they are extended into level under the effect of internal pressure.As shown in Figure 15 b.Like this, they can be provided at the movable blowing surface Ss of extended configuration 161 approximate horizontal.

Can make the flexible cylindrical blowing part 159 of porous the shape of the finger part of gloves with a kind of braided material of reinforcement.Cover a last protectiveness bonding strip along a columniform bus on the braided material of shell-like thing.Then, a kind of sealing cladding material (for example being used for oilcloth) is coated in the outside of shell-like thing.Then, the protectiveness bonding strip is taken off, its result, the major part on the shell-like thing just cover the air-locked encapsulant of last layer.But, on the flexible cylindrical blowing part 159 of each porous, do not have encapsulant along a vertical surface of a bus, so allow air to pass through.Its result, a part of surface of shell-like thing just forms a porous surface Spa, and described part is in occupation of that bus.The surface of remainder is air-locked.This has just formed the surperficial Ss of blowing, and when the flexible cylindrical blowing part 159 of porous extended, the elementary blowing air jet 19 of this blowing surface permission just was parallel to ceiling 20 along that bus and blows out.Advantageously, can the one end be placed in the flexible cylindrical blowing part 159 of porous, and its other end is fixed in vertical ventilator device 103 with a kind of telescopic stiffener 170.The flexible cylindrical blowing part 159 that telescopic stiffener 170 is used to increase each porous extends the degree of stretching out at 161 o'clock.Telescopic stiffener 170 preferably relies on the pressure in the air supporting depollution device 101 to uphold.Can rely on elasticity that it is flattened.

Do to make air supporting depollution device 101 relative narrower that when not starting, becomes like this, pass through door easily.And when air supporting depollution device 101 was in running order, the surperficial Ss that dries can be extended into its width width in room 3 no better than.Its result, blowing air stream can spread all over the whole width in room 3.This can make the better effects if of depollution.

That the present invention recommends, independently one the 3rd preferred embodiment of air supporting depollution device 101 is shown in Figure 10 b.Porous dry surperficial Ss comprise to both sides extend one before the surperficial Ssf of blowing, and on two sidewalls 135 of blowing mouth, be formed separately out side direction dry surperficial Sslg and Ssld, be used for facing the side direction wall 140,144 in room 3.This layout can increase the surperficial Sse of effective blowing and more effectively handle the lateral region along wall 140,144 in room 3.This also helps to eliminate " the interference shunting air stream of inclination " Fs phenomenon.

The 4th preferred embodiment of the air supporting depollution device 101 of the independently air supporting depollution that the present invention recommends is shown in Figure 11.The air intake mouth 118 of the air-breathing pattern of locating on the floor has roof 139, and its width is wideer than the mean breadth of vertical ventilator device 103, and its downward extension.This is widened the vertical symmetrical plane PV that is perpendicular to air supporting depollution device 101 and weighs, and symmetrical plane PV is perpendicular to the front portion 165 of air supporting depollution device 101.Like this, to leave air intake mouth 118 more farther for two sidewalls 141.

That the present invention recommends, independently one the 5th preferred embodiment of air supporting depollution device 101 is shown in Figure 10 a, 10b, 12,13a and 13b.Air intake mouth 118 has the horn mouth bottom 143 of a tulip flower shape, and it is in the face of floor 6.Digital simulation has shown that also this layout helps to eliminate better " the interference shunting air stream of inclination " Fs phenomenon.

That the present invention recommends, independently one the 6th preferred embodiment of air supporting depollution device 101 is shown in Figure 12.There is a vertical scale DL in the vertical symmetrical plane PV of air supporting depollution device 101 at the middle part of vertical ventilator device 103, and it is less than the vertical scale DLS of air intake mouth 118.These two yardsticks are that the vertical symmetrical plane PV that is parallel to air supporting depollution device 101 measures, and symmetrical plane PV is perpendicular to the front portion 165 of air supporting depollution device 101.

That the present invention recommends, independently one the 7th preferred embodiment of air supporting depollution device 101 is shown in Figure 13 a and 13b.Vertical ventilator device 103 comprises the stack shell part 147 of adjustable in length.This adjustable stack shell part can constitute with bellows 149.This structure can make the dry place height of surperficial Ss of porous adapt to the height in room 3.Its result, air supporting depollution device 101 can be used on 3 li in the room of the differing heights of each building, so that guarantee that by extend 152 (shown in Figure 13 b) on short transverse primary air jet flow 19 relies on wall attachment effect C to be attached to the ceiling 20 in room.The stack shell part 147 of height-adjustable is shortened, can make air supporting depollution device 101 at the door of shortening state 151 (shown in Figure 13 a) by room 3.

That the present invention recommends, independently one the 8th preferred embodiment of air supporting depollution device 101 is shown in Figure 14 a and 14b.Air supporting depollution device 101 has the auxiliary air intake mouth 155 of the front portion that is formed in ventilator device 103.Should be positioned at (the about 1m of liftoff plate) on the only about half of height by auxiliary air intake mouth 155.Auxiliary air intake mouth 155 leads in the ventilator device 103, being used for clear upstream of being infected with the device 127 of particle, just leads to the upstream region Ac that is infected with.This layout can be removed airborne contaminant near auxiliary air intake mouth 155.Have the people who is infected with particle 4 and can be released to suspended state being infected with floating substance.When people's hospitalization, people couch on one's sick bed, and its breathing area is highly to locate at about 1m.There is this preferred embodiment of this auxiliary air intake mouth 155 to can be used for directly handling emission discharging, that contain floating substance by the people in zone C m shown in Figure 7.

Objects and advantages of the present invention

Objects and advantages of the present invention are " the interference shunting air stream of the inclination " phenomenons that are inevitable with thinking in method of ventilation reduction of the present invention and even the elimination prior art, and this method of ventilation is to mix with the inspiratory flow that is attached to the floor by the primary air jet flow of utilizing dependence wall attachment effect C to be attached to ceiling to ventilate.

Second advantage of the present invention be can reduce in room sedimentation be infected with the generation that particle rises to the phenomenon of suspended state again.

The 3rd advantage of the present invention is can absorb the floating substance that is in suspended state and be collected at floating substance in the thin layer of air of being infected with near the quilt of the height on floor along with sedimentation.

The 4th advantage of the present invention is to reduce the amount of being infected with particle that is adhered to the floor, thereby reduces the cleaning frequency in room.

The 5th advantage of the present invention is to reduce the concentration of being infected with floating substance in the people zone of having that is suspended in the room.

The 6th advantage of the present invention is to reduce the generation of being infected with the disease that causes by the microorganism in the floating substance in the room.

The 7th advantage of the present invention provides the ventilating system that air jet that a kind of utilization adheres to mixes, and aspect the contaminant of removing in the room, the performance of this system approaches the performance of laminar flow draft type, and its expense is than the little order of magnitude of the latter.

The 8th advantage of the present invention provides a kind of system of removing floating contaminant with high cleanliness, and it can be portable.

The 9th advantage of the present invention is to take measures apace to not equipping the house that pre-preventing microorganism is infected with.This is applicable to family ward comparably, prevents various epidemic diseases, public health care is provided, produces medicine and food.

The of the present invention ten advantage provides a kind of wheeled apparatus, and it is applicable to the floating particle of being infected with of capturing and removing near the floor, and can avoid making them return suspended state.This is for patient's particular importance of those hypersensitizations (allergy).

The 11 advantage of the present invention is the speed of the room being ventilated and removing contaminant with the mixed method quickening.

Industrial usability of the present invention

The present invention can make the floating process optimization of being infected with particle in contaminant of removing in the room and the air of removing in the room with the expense that reduces.Therefore, the present invention's airborne contaminant of containment building need remove to(for) any kind has industrial usability.It can be applicable to: health care, food industry, scientific research, carrier, animal feeding, pharmaceutical industry, school ..., this only is to have enumerated some examples.

Particularly suitable application is, is used to remove airborne floating substance in the ward, and the people in protection patient and the hospital environment exempt from the danger of cross-contamination.This is related to the protection that the danger of prevention SRAS (SARS) type infectious disease is provided in hospital ...

Another application is to tackle some consequence of being ventilated and being caused, cause being caused by the floating substance that air-conditioning system is carried infection danger by the routine in house specialty, public and family provisionally.The localised protection that this is related to certain room in the building that is ventilated prevents to cause infection and/or cross-contamination (sick building syndrome) because of the central air conditioner system of building.

Also can be applicable to the vehicles marine and aerial passenger transport.

Also can be applicable to those and exist the industry that the local microorganism relevant with the production of being infected with preparation is infected with danger, for example, be applied to pharmaceuticals industry and food industry.Also can be applicable to the microbe research Experimental Establishment.

Also can be applicable to protect highdensity stock raising (chicken, pig ...), make the state that they keep fit, particularly on farm (for optionally breeding) that restriction enters without authorization.

Also be used in and carry out the public's protection when biological terrified attack takes place.

Also can be widely used in coffee shop and the restaurant between the restriction client and/or client and serve infection danger between the people.

Though also can be applicable to prevent the epidemic transmission in nursery, kindergarten, school and those rooms little but that wherein the people is many.

At last, also can be applicable to protect odontopathy clinic, health check-up place, or the like work people and visitor.

Should be realized that scope of the present invention is limited by appended claim and jural equivalent, and is not to be limited by those examples that provide above.

Claims

1. one kind by mixing to give the method for a room (3) ventilation with an air-breathing air stream (21) that relies on wall attachment effect C to be attached to a primary air jet flow (19) of ceiling (20) and to rely on wall attachment effect (C) to be attached to floor (6), and this method comprises:

A) according to following through anticipating (heat, cool off, remove contaminant, humidification, dehumidifying ...) a primary air jet flow (19) blow into described room (3):

I) by being positioned near the blowing surperficial (Ss) of align the described ceiling (20) with a treated sidewall (52); And

Ii) be oriented blowing direction Is towards described ceiling (20) (or parallel with it) (mean value of the mean direction of the various piece of primary air jet flow (19) on blowing surface (Ss)) along one, and cause and rely on wall attachment effect (C) to make described primary air jet flow (19) be attached to described ceiling (20); And, then

B) according to following with the dirty air-breathing air stream (21) of a flow inspiration one of the flow that is equal to described primary air jet flow (19):

I) a near getter surface (Sa) the described floor (6) by being positioned at described room (3), that roughly align with described treated sidewall (52);

An inspiratory flow (55) of ii) guaranteeing air (A) is to be sucked near described floor (6), and described inspiratory flow (55) is:

Approximate horizontal; And

Be parallel to the surface on described floor (6) and rely on wall attachment effect (C) to be attached to described floor (6);

The feature of this method of ventilation also is:

C) guarantee that average cold air blast velocity (Vs) [mean value of the speed of the various piece of the primary air jet flow (19) on the blowing surface (Ss) of flowing through] is lower than average suction speed (Va) [mean value of the speed of the various piece that is inhaled into air stream (21) of the getter surface of flowing through (Sa)] (Vs＜Va).

2. as claimed in claim 1, mix with method by utilize relying on primary air jet flow (19) that wall attachment effect C adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to a ventilation of room, its feature also is:

A) make effective blowing surface (Sse) greater than effective getter surface (Sae)

One kind be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect C adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, described device (101) comprising:

A) the ventilator device (103) of vertical placement [being placed to the one first treated vertical wall (52) that is roughly parallel to also close treated described room (3)], described ventilator device (103) comprising:

I) be positioned at described floor (6) and a with it spaced bottom air-breathing first end (104) of its bottom near described room (3); And

Described ceiling (20) and a spaced with it top second end (105) of drying is approached at the top that ii) is positioned at described room (3);

B) be used to drive unit (106) that air movement is got up, described drive arrangement also can be set up the positive differential pressure (Δ P) between described top blowing end (105) and the described bottom suction end (104) in described ventilator device (103), so that air can flow to and flow out described ventilator device (103);

C) locate to stretch out in a skin effect air intake mouth (118) of the described bottom suction end (104) of described ventilator device (103) in described floor (6), it is in the face of the floor (6) in described room (3), the approaching described floor (6) of its air entry (111), this air entry:

I) getter surface (Sa) of a roughly vertical suction import is arranged; And

Ii) carry out sucking at the air (A) of an inspiratory flow (55) form at the aspect place of described floor (6), this inspiratory flow is:

Approximate horizontal; And

Be parallel to described floor (6) and rely on wall attachment effect (C) to be attached to described floor (6);

D) a skin effect blowing mouth (129) of blowing and hold (105) [being positioned proximate to described ceiling (20)] and be formed on the blowing mouth (110) at its top in the described top of locating at described ceiling (20), stretch out in described ventilator device (103), this blowing mouth:

I) have and be arranged to roughly and that four lateral edge (119a, 119b, 119c, 119d) are arranged porous blowing surface (Ss) forward; And

Ii) produce a primary air jet flow (19) by whole blowing surface (Ss), described jet flow is orientated and is tilted to or level [to blow to or be parallel to described ceiling (20)], so that described primary air jet flow (19) can rely on wall attachment effect (C) to be attached to ceiling (20); And

E) be used for removing air (A) be infected with particle remove contaminant device (127) (go out and/or destroy) by filtration, this removes the contaminant device:

I) be installed in the described ventilator device (103) and between described air intake mouth (118) and described blowing mouth (129); And

Ii) across the section (S) of described ventilator device (103) within it portion it is separated, remove the contaminant device to force between the zone (114) in a upstream region of being infected with (113) and a downstream one section of the air (Ac) be infected with to flow through this, air in this section (Ad) is removed at least in part

Contaminant;

The feature of the device of air supporting depollution (101) also is:

F) effective area (Sae) of the getter surface (Sa) of described air intake mouth (118) is less than the effective area (Sse) on the blowing surface (Ss) of described blowing mouth (110), so that average cold air blast velocity (Vs) [mean value of the speed of the various piece of the primary air jet flow (19) on the blowing surface (Ss) of flowing through] is lower than average suction speed (Va) [mean value of the speed of the various piece that is inhaled into air stream (21) of the getter surface of flowing through (Sa)] (Vs＜Va).

4. as claimed in claim 3, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is following combination:

A) at first, its air intake mouth (118) is located air-breathing pattern in described floor (6), an air entry (111) is promptly arranged, this air entry:

I) the bottom first air-breathing wall (132) is arranged:

In fact this wall is contacted with described floor (6); Or

This wall itself is formed by described floor (6);

Ii) and, a top second air-breathing wall (133) is arranged, this wall is that the part (134) by the base plate (137) of described air intake mouth (118) forms;

Iii) like this, its vertical getter surface (Sa) is unimpeded and is to be made of the vertical annular open surfaces (136) between the base plate (137) that is formed in described air intake mouth (118) and described floor (6); And

Iv) be used on the aspect of described floor (6) the form suck air with an air-flow (55) that is attached to described floor (6), air is from tiltedly facing to a described air-breathing plane fan-shaped (138) and from other three walls (50,144,140) described room (3), except that described treated wall (52); And

B) secondly, the vertical getter surface (Sav) of the described air intake mouth of locating in described floor (3) (118) is less than effective blowing surperficial (Sse) on the described blowing surface (Ss) of described blowing mouth (110).

5. as claimed in claim 3, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is following combination:

A) top edge (142) on described porous blowing surface (Ss) is positioned in the above height in described floor (6) is applicable to the calibrated altitude of about 250cm greater than 170cm[room (3)]; And

B) the described porous blowing surface (Ss) of described blowing mouth (110) is provided with mechanically adjustable guider (163), be used for the blowing air stream (164) that guiding constitutes described primary air jet flow (19), the direction that makes the air stream that comes out from described blowing mouth (129) with respect to the angle (α s) [mean value of blowing air stream angle with respect to the horizontal plane on blowing surface (Ss) of elementary blowing air jet] of horizontal direction (H) in 20 ° to 70 ° scopes.

6. as claimed in claim 3, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is following combination:

A) at first, the size of effective blowing surface (Sse) on the blowing surface of described blowing mouth (129) and described air driven device (106) the average cold air blast velocity (Vs) that is confirmed as described blowing mouth (129) is located [described primary air jet flow flows through the mean value of the speed of described porous blowing surperficial (Ss))] is greater than 0.79m/sec[Vs＞0.79m/s]; And

B) secondly, effective blowing area (Sse) on the blowing surface of described blowing mouth (110) is bigger to little by 20% than effective getter surface (Sae) of the getter surface of described air intake mouth (118), can make like this average suction speed (Va) [at the mean value of the speed of the indrawn air stream of the import department of porous getter surface (Sa) (21)] than described average cold air blast velocity (Vs) big 20% (Va＞1.2Vs).

7. as claimed in claim 3, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: the described blowing mouth (129) that is supporting described porous blowing surface (Ss) is than upwardly extending described vertical ventilator device (103) wide [the vertical symmetrical plane PV perpendicular to described device (101) measures, and vertical symmetrical plane PV is perpendicular to the front portion (165) of described device (101)].

8. as claimed in claim 3, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described porous blowing surface (Ss) have one forward blowing surface (Ssf) and extend laterally and be formed in side direction blowing surface (Sslg and Ssld) on the sidewall (135) of described blowing mouth (129), the sidewall (140 in described room (3) is faced on these two blowing surfaces respectively, 144).

9. as claimed in claim 3, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described air intake mouth (118) is located to be widened to the mean breadth [vertical symmetrical plane PV perpendicular to described device (101) measure, and vertical symmetrical plane PV perpendicular to the front portion (165) of described device (101)] of its width greater than the vertical ventilator device (103) of described downward extension at its roof (139)

10. as claimed in claim 4, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described air intake mouth (118) comprises the horn mouth bottom (143) of a tulip flower shape, and it is placed with described floor (6) aligns.

11. it is as claimed in claim 3, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: the middle part section part of described vertical ventilator device (103) has a vertical scale DL (size) in the vertical symmetrical plane PV of device (101), it is measured less than the vertical symmetrical plane (PV) that the vertical scale DLS[of described air intake mouth 118 is parallel to described device (101), and symmetrical plane (PV) is perpendicular to the front portion (165) of described device (101)].

12. as claimed in claim 3, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: it comprises an auxiliary air intake mouth (155), this air intake mouth:

A) be arranged in the front portion of described ventilator device (103);

B) highly locate (the distance about 1m in described floor (6)) about half; And

C) open wide to the inside of described ventilator device (103), lead to the described upstream that is used to remove the device (127) of being infected with particle by contaminated area (Ac).

13. it is as claimed in claim 3, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described ventilator device (103) comprises a torso portion (147), the length of this part be adjustable [specifically, be with a bellows (149)], this makes the height on described porous blowing surface (Ss) to change according to the height of described room (3), so that described primary air jet flow (19) is attached to described ceiling (20), make described device (101) can pass through a door in described room (3) simultaneously.

14. as claimed in claim 3, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air that relies on wall attachment effect (C) to adhere to flow (21) to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described blowing mouth (129) comprises the device (157) of the lateral dimensions that is used to increase it, and this device can make the blowing surface (Ss) of described blowing mouth (129) laterally extend.

15. it is as claimed in claim 14, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: described blowing mouth (129) comprises the device (157) that is used to increase its lateral dimensions, this device is made of the flexible cylindrical blowing part (159) of at least one (preferably two) porous, and this (two) individual part is:

A) laterally be arranged in its top with respect to described ventilator device (103), and perpendicular to the vertical symmetrical plane PV of described device (101); And

B) can trail under the effect of pressure (Ps) and form a movable blowing surface (Ss), roughly be level on this surface of the state that trails (161).

16. as claimed in claim 15, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: the flexible cylindrical blowing of described porous partly (159) comprising:

A) spread all over the porous surface (Spa) of its surperficial part, be used to form a blowing surface (Ss) and an elementary blowing jet flow (21) also can be blown out from it; And

B) the air-locked surface (SE) on its surperficial remainder.

17. it is as claimed in claim 15, be used for a room (3), it is described to implement claim 1, mix device (101) by utilize relying on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: it comprises the stiffener device (170) that at least one is telescopic, one end of this device places in the flexible cylindrical blowing part (159) of described porous, and its other end is fixed in described vertical ventilator device (103).

18. as claimed in claim 17, be used for a room (3), implement claim 1 described, rely on primary air jet flow (19) that wall attachment effect (C) adheres to and the air-breathing air stream (21) that relies on wall attachment effect (C) to adhere to mix device (101) by utilizing with the independently air supporting depollution of using to the method for this ventilation of room, its feature also is: dependence described device (101) pressure inside of stretching out of described telescopic stiffener device (170) is carried out.