CN108700331A - Weather-proof air grid - Google Patents

Abstract

The present invention relates to a kind of weather-proof air grids comprising:A series of rigid rods (100), it is substantially parallel to each other and non-vertical, it is generally vertical in leading edge (110) with outwardly directed first is intended to, and two secondary surfaces, it is assembled at a certain distance from away from interarea (110), and the channel dissipated from outside to inside is limited between two adjacent stems (100);A series of and deflection fins (200), it is connected respectively to the base portion of the interarea of each bar (100) (110), fin (200) is tilted with certain gradient and height towards outside relative to interarea (110), so that the free edge (210) of a fin (200) is at least with the top edge of the interarea of bar from below (100) (110) (112) on identical horizontal line, or it is even overlapping with the interarea (110), so that fin (200) forms deflector, and with the certain height more than a distance, the distance separates the top edge of the lower edge and the interarea (110) of bar from below (100) of the interarea (110) from a bar (100).

Description

Weather-proof air grid

Technical field

The present invention relates to the fields of air grid.

Air grid is designed as allowing equipment to divulge information by drawing or blowing air, and protects equipment from severe day Gas, the risk of animal and/or missile entrance and overvoltage or the influence of low-pressure wave.

Background technology

Particularly, but without limitation, it is necessary to which protection is limited by the building of the facility of high security requirement, for example illustrates For chemistry or the Workplace in petrochemical industry or core Workplace, against a variety of potential external attacks, and especially It is following risk:

Meteorological (rain, ice, frost, wind, hail, strong wind ...),

Missile or animal (especially bird) enter in ventilation shaft,

Pressure wave, such as the overvoltage suddenly caused by the blast of extraneous explosion, or even by cyclone/hurricane or Low pressure caused by similar phenomenon.

If the outer wall of building constitutes effectively defence to the current attack influenced by sufficient size, made in these walls At opening, such as window but more particularly receive ventilation shaft end opening, be directly exposed to the attack and need Certain size is wanted to customize.

Actually and without limitation:

The intrusion of fluid (be typically at the rain of liquid or be in solid hail), can cause a series of damages, such as For example circuit etch,

By partially or even wholly blocking opening, ice may significantly decrease ventage particularly because of load loss The efficiency of system,

Over-pressed wave may be to internal circuit and to ventilation unit, and is caused to all devices accommodated in building Damage,

The low-pressure wave of cyclone may lead to the influence for being similar to over-pressed wave.

In both of the latter cases, mobile may convey of associated fluid, that is, air or other gases is likely to cause serious damage Bad missile.

First function of ventilating system is to ensure that the heat regulation in the house as normal operating.Secondly, these systems must The update of the air in house must be carried out by recycling the air in one group of dispensing loop.The two functions especially equipment The guarantee of normal operation, and accordingly contribute to, especially for the safety of core production scene, then have in lesser degree Help the comfort of personnel, or even its integrality.

It is designed as helping to stop that the device of external attack described above must not reduce the major function of system.

Have been proposed the air grid of many types, but one is be not entirely satisfactory.

The problem of in order to handle rain, animal entrance and ice, ventilating system can be placed in position, equably be arranged And it is sized and is oriented to so that rain will not be penetrated into the inner space of building to be protected.If it would be possible, mobile Ventilation opening, which leaves, is configured such that bird does not enter inner space.The external dimensions of device is usually defined as so that even if in device In the case of partly being blocked by ice, required air stream is also ensured that.

However, ventilating system provides effective protection not to projected at high velocity object and therefore to sizable kinetic energy.

Therefore it has already been proposed that replacing ventilation opening sometimes through more rigid bar.

The solution gives effective protection to the missile with strong kinetic energy.Using bar it is appropriate arrangement even more so that It is possible that preventing the risk of the intrusion and ice condensation of animal.

Furthermore it is possible that being oriented to the profile of bar convenient for the intrusion of limitation rain.

However, due to their shape, the bar proposed so far can destroy flowing and generate sizable load loss, to Reduce air stream when normal operating.

It can also be cited as the following trial of solution progress:

Increase buffering defence before the air input grid of ventilating system to prevent cyclone in this respect, however should Solution is with high costs, and can not solve the problems, such as extraneous explosion.

Electric damping device is implanted into quickly to block ventilation network, is controlled by differential pressure transmitter.The solution is non- Chang Anggui and be based on active equipment.In addition, the equipment is to PGEW (missile generated by extreme wind) missiles and cyclone Resistance be impossible.

In short, so far, no solution efficiently solves caused all problems, and in particular, provides phase For the mechanical effective protection of all missiles, and ensure the fast-changing reliable protection to external pressure.

In fact, the device proposed so far only slightly alleviates the fluctuation that may be derived from such as pressure of explosion or hurricane.

So far, number of the designer of ventilating system in addition to multiplying device and facility construction in the region at interface to be protected There is no other selections except amount.

As a result, in practice, the protective device of type shown in attached drawing 1 is nowadays commonly used, including is used to avoid institute There is the level of a pile complexity of external attack:Also prevented by rain-proof bird invade grid 10 formed external level, by being intended to prevent The only level, frost prevention level 14, the blast protection flap institute shape being made of quick closedown flap of the formation of reinforcing bar 12 of missile intrusion At level 16 followed by be connected to ventilation shaft anti-cyclone isolation damper 18 level.

However, this device manufacturing is complicated, and have the shortcomings that many:

They be it is expensive,

They generate sizable load loss, it usually needs the size of certain elements in excessive stronger ventilation circuit, And

They the effect of, are simultaneously not always represented, especially for blast protection flap.

Document DE7534836 describes a kind of example of the weather-proof air grid including rigid rod and deflection fins.

In brief, there is currently no simple devices effectively to resist all possible attack.

Invention content

About this point, the purpose of the present invention especially proposes a kind of novel air grid,:

Air stream is facilitated in normal operation condition,

Disperse incident pressure cutting edge of a knife or a sword,

Limit the rising of the pressure in inner space.

Above-mentioned purpose is reached according to the present invention by a kind of weather-proof air grid, which includes:

A series of rigid rods, it is parallel to each other and non-vertical on the whole, have:First, in leading edge, is directed toward the lattice The first side for being intended to point to outside of grid, is parallel to the equal face of the grid on the whole, and is intended on the whole vertically to make With;And two secondary surfaces, it is assembled when far from interarea movement, channel, the channel is limited between two adjacent stems From the directional divergence that is intended to be directed toward the second side of inside of first side along the grid for being intended to point to outside, and

A series of deflection fins are respectively attached to the base portion of the interarea of each bar, and the fin is according to certain inclination Degree and height roll tiltedly relative to the interarea towards be intended to point to outside first so that the free edge of the fin is at least Be orthogonal to equal face being projected on the same line on the top edge of the interarea of lower square bar of the grid, or even cross over The interarea so that the fin forms deflector, and with the certain height more than a distance, which will be from a bar The lower edge of interarea and the top edge of the interarea of bar from below separate.

The present invention operation and advantage will from it is below it is described in detail below in show.

Present invention particularly provides the synergistic effects of following technique effect:

On the one hand, the section of the bar of dispersion channel from outside to inside is limited, and the side therefore provided towards inside by bar Edge limits load loss for draw air from inside to outside, while the component relative to incident pressure wave from outside to inside carries The divergence factor of confession is suitable for cutting down the influence of the wave,

On the other hand, the interarea vertical on the whole of bar forms deflector/anti-for another component of incidence wave or object Emitter,

And it is blocked in addition, inclined fin not only forms rain-proof, also serves as the potential of some waves and incident object Deflector, additionally with interarea coordinate with to sent back to suitable for breaking the different directions of incident wave crest (hit interarea horizontal wavelength-division Amount is flatly sent back to, and the horizontal wave component for hitting fin perpendicular to fin is sent back to, partly arrive outside and integrally It is upper upward, and before being sent back to by interarea, if the angle of inclination between fin and horizontal plane is adjusted to be typically less than 45 ° then partly tend to interarea), while potentially (lower edge of fin in this case can in the case of excessive pressure Rest on lower square bar), it is formed by deforming " door " in the channel between being suitable for pole shutoff, the height of fin is adjacent more than two Interval between bar.

The invention further relates to including such as according to the building of the previously defined at least one grid of the present invention.

Description of the drawings

Other features, objects, and advantages of the present invention will be from described in detail below and given with respect to non-limiting example The attached drawing gone out displays, and wherein:

Earlier figures 1 show the schematic diagram of system according to prior art,

Fig. 2 shows the partial view consistent with the view in the vertical section of weather-proof grid according to the present invention,

- Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are shown in the vertical section in the section of the bar of modification according to the present invention View,

- Fig. 9 shows function of the load loss caused by grid according to the present invention as air velocity,

- Figure 10 show residual pressure after grid according to the present invention as bar secondary surface with respect to the horizontal plane The function of angle,

- Figure 11 show load loss caused by grid according to the present invention as bar secondary surface with respect to the horizontal plane The function of angle,

- Figure 12 shows function of the residual pressure after grid according to the present invention as the spacing between bar,

- Figure 13 shows function of the load loss as the spacing between bar caused by grid according to the present invention,

- Figure 14, Figure 15 and Figure 16 respectively illustrate two opposite perspective views of grid according to the present invention and part is cut Face figure, and

- Figure 17 and Figure 18 shows two kind implantation modifications of the grid in strictly not vertical arrangement.

Specific implementation mode

Weather-proof air grid according to the present invention is formed by the combination of a series of rods 100 and deflection fins 200.

Fin 200 is fixed to the base portion of each bar 200.

Bar 100 is preferably fixed on the pillar 310 of frame 300.However, as a modification, bar 100 can feasibly exist The infrastructure product of building is affixed directly at the height of the frame of ventilation orifice to be protected.

This is equally applicable to fin 200, can be fixed to the pillar 310 of frame 300.However, as a modification, can make Fin 200 is affixed directly to the infrastructure product of building by measure at the height of the frame of ventilation orifice to be protected.

Preferably, air grid according to the present invention is mounted on vertical position.However, grid according to the present invention also can phase Vertical plane (by not being equal face M that vertical frame limits) is installed with certain gradient, such as relative to vertical plane +/- In the range of 20 °.

Vertical or half vertical position that is occupied in the position of use below with reference to weather-proof grid and with reference to shown in Fig. 2 Horizontal plane H and vertical plane V weather-proof grid according to the present invention described.

Bar 100 is rigid, and is preferably formed by metal, and is highly preferable formed from steel.

Bar 100 is parallel to each other, and is non-vertical.More precisely, bar 100 is preferably in horizontal to about +/- 10°.In other words, centered on a longitudinal axis, which is used with about positive and negative 10 ° in level each bar 100.

The straight sections of bar 100 are constant over the whole length.The straight line portion preferably having the same of all bars 100 Section.

As in fig. 2 it will be apparent that bar 100 preferably has the straight sections of triangle on the whole.

Bar 100 can be formed by solid body, or can be by assembling three pieces or three bar steels (in the region of its neighboring edge Weld in couples) it is formed.

Bar 100 is with first in leading edge 110 and two secondary surfaces 120,130.

First is attached to upper secondary surface 120 in leading edge 110 in the region of horizontal edge 112, and also in horizontal sides It is attached in the region of edge 114 on lower secondary surface 130.

Two secondary surfaces 120 and 130 are bonded on one in the region at common inside and still horizontal edge 116 It rises.

The distance for separating the edge 116 of two adjacent stems 100 is marked as d in fig 2.

Separation is labeled from the top edge 112 of a bar 100 at a distance from the lower edge 114 of adjacent stems 100 in fig 2 For h1.

In order to limit the load loss relative to orientation aspiration flow from inside to outside, opposite with interarea 110 two auxiliary Linking part between face 120,130 limits the inward flange 116 of bar, is sharp or rounding, and it is advantageously small to provide 5mm In the maximum curvature radius of 3mm.

First is intended to point to outside in leading edge 110.It is vertical on the whole, and its vertical height (or width) It is marked as h2 in fig 2.

It those of is received into incident pressure wave reflection to outside in leading edge 110.

Preferably, all first fronts 110 of the bar 100 of same grid are coplanar and vertical.

Two secondary surfaces 120 and 130 are assembled with interarea 110 is moved away from.In this way, the straight sections of bar 100 are from outer Inwardly become smaller.Between each pair of two adjacent stems 100, two secondary surfaces 120 and 130 limit the channel 140 dissipated from outside to inside, And therefore the air stream moved from inside to outside is assembled in contrast.The differentiation in the section in channel 140 be it is progressive, It is without suddenly change, in order to avoid Interference Flow and optimize load loss.

First is preferably flat in leading edge 110, as shown in Fig. 2, Fig. 3 and Fig. 6 to Fig. 8.

But it can be convexly curved as shown in Figure 4, or be concavely bent as shown in Figure 5.

Preferably, the straight sections of bar 100 are isosceles, two secondary surface 120 and 130 width having the same, such as It is obvious in figure 3.Even more precisely, the straight sections of bar 100 are preferably equilateral, two secondary surface 120 and 130 and first in 110 width having the same of leading edge, such as obvious in fig. 2.

However, by way of modification, two secondary surfaces 120 and 130 can have different width, as aobvious in figure 6 (straight sections of each bar are kept constant over the whole length, and all bars section having the same) being clear to.

Two secondary surfaces 120 and 130 are preferably flat, as shown in Fig. 2 to Fig. 6.

But they can concavely be bent as shown in Figure 7, or be convexly curved as shown in Figure 8.

The base portion 114 for example by being attached to the interarea 110 of each bar 100 respectively of deflection fins 200.

Fin 200 is relative stiffness, and is preferably formed by metal, and is highly preferable formed from steel.

Fin 200 is parallel to each other.The straight sections of fin 200 are constant over the whole length.All fins 200 are excellent Selection of land straight sections having the same.

As in Fig. 2 it will be apparent that fin 200 is preferably formed by the constant flat metal blades of width L, and therefore With straight straight sections when static.

Fin 200 is inclined outwardly relative to interarea 110.In other words, each fin 200 is by moving away from it above-mentioned The associated connection edge 114 on leading edge 110, or by being moved towards its free edge 210, and move away from it The attached vertical plane in leading edge 110.The gradient and height of fin 200 are the free edge 210 so that fin 200 At least on horizontal line identical with the top edge 112 of interarea 110 of lower square bar 100.If desired, according to floor projection, Each fin 200 may span across the interarea 110 of lower square bar 100.

Therefore, fin 200 forms deflector, and will be from the lower edge 114 of the interarea 110 of a bar 100 with being more than Intrinsic height (or width) L of distance h1=(d-h2) is separated with the top edge 112 of the interarea 110 of bar 200 from below.

Vertical height h1=(the d- at the interval limited between the vertical height h2 and two adjacent stems 100 of each interarea 110 H2 the ratio between) is preferably between 0.5 and 2, it is therefore preferable to about 1 to ± 10% degree.Due to this arrangement, bar 100 section provides maximum reflection surface for over-pressed wave, without therefore generating critical load loss.

It will be apparent that bar 100 can be fixed to the pillar of frame 300 in as previously noted and such as Figure 14 to Figure 16 310, it is sized to the size of ventilating system.In Figure 14 to Figure 16, the upper beam of frame 300 is labeled as 320, and lower cross Beam is labeled as 330.

Secondary surface 120 and 130 gradient α with respect to the horizontal plane are preferably less than 40 °, preferably smaller than 30 °, and height Advantageously below 25 °.

The gradient has been calculated the flowing to promote fluid during draw air from inside to outside when normal operating Come obtain 2.5m/s conventional size flow, to limit load loss.

The distance between bar 100 h1 is also calculated so that it prevents the intrusion of missile, and limits caused by frost The risk of blocking.

The distance h1 for separating two adjacent stems 100 is preferably less or equal to 90mm.

Highly advantageous, separate two adjacent stems 100 distance h1 between 50 and 85mm, highly advantageous 60 with Between 80mm.

In addition, the height h2 of the interarea 110 of each bar 100 is preferably larger or equal than 70mm.

Highly advantageous, the height h2 of the interarea 110 of each bar 100 is between 70 and 85mm, highly advantageous 60 with Between 80mm.

Due to their orientation (angle beta) and their width (L), it is fixed to the base portion of each bar 100 and preferably It is fixed to the fin of frame support 300 by their end or ventilation opening 200 fights the intrusion of rain, and limits normal behaviour Caused additional load loss when making.

Each gradient β between fin 200 and horizontal plane H is less than 50 °, preferably less than 45 °, and highly advantageous Less than 30 °.

According to the present invention, the connection edge being illustrated as between it on bar 100 and its free edge of each fin 200 Width L, each fin 200 between 210 and the gradient β between horizontal plane, two secondary surfaces for separating two adjacent stems 100 120, the vertical height h2 of each interarea 110 of the distance d and bar 100 of the inside convergent point 116 between 130 is followed with ShiShimonoseki System:(L×sinβ)>=(d-h2).

The thickness for the fin 200 being formed from steel is sized to convenient for resisting the variation in explosion and spout disturbance, usually extremely It is equal to 0.8mm less.

First embodiment according to the present invention, fin 200 it is at least some, preferably all fins 200 are by being fixed to The linking part of the base portion 114 of relevant rod 100 connects.

However, according to the second embodiment of the present invention, fin 200 it is at least some, preferably all fins 200 can pass through Hinged joint portion is connected to the base portion 114 of relevant rod 100.

In this latter case, in the region that the base portion 114 of they and bar 100 links, ventilation opening or fin 200 can Be equipped with recovery device, form spring, be suitable in the case of notable overvoltage, correspondingly fin 200 and relevant rod 100 it Between allow rotation allow degree of freedom, while ventilation opening or fin 200 being allowed to be folded in the opening in channel 140 and block it , further enhance the protection to the overvoltage.Once overvoltage terminates, above-mentioned spring ensures that ventilation opening or fin 200 restore To initial position.

When the free edge 210 of fin 200 is located at level height identical with the free edge 112 of lower square bar 100 Or when beyond the free edge 112, the height L of fin 200 is more than the interval h1 between two adjacent stems 100.Therefore, in pressure In the case of excessive, by deforming or cutting with scissors, the channel 140 that fin 200 can be between pole shutoff 100, the lower edge of fin 200 210 rest on lower square bar 200.

Due to the combination of features described above, weather-proof grid according to the present invention is suitable for covering and optimizing to many things The blocking of (PGEW or " missile as caused by extreme wind " attack, cyclone, extraneous explosion, icing).It is also protected within doors Ventilating system and equipment.

Specifically, weather-proof grid according to the present invention:

Effectively prevent the missile projected in cyclone and missile (PGEW) as caused by extreme wind.

Effectively cut down the suddenly change of the pressure as caused by cyclone and extraneous explosion, in order to avoid in damage building Ventilation network (pipeline, ventilation fan, flap).

Significant load loss will not be caused (in order to avoid must installation load on the ventilation network that they are mounted thereon The characteristic of fan has been installed in recycling fan or modification).

The function (rain-proof and anti-bird) of meeting conventional air grid, so as to implement to install grid according to the present invention To replace pervious grid.

The problem of in view of freezing.

In order to optimize weather-proof grid according to the present invention, inventor is based on each master below with reference to parameter to grid Feature is wanted to carry out a series of parameter study:

Air velocity when normal operating:2.5m/s

Secondary surface 120 and 130 gradient α with respect to the horizontal plane:25 °,

The geometry in leading edge 110 of the triangular-section of bar:Straight,

Spacing h1 between-two adjacent stems 100:80mm.

Parameter " air velocity " when having studied normal operating on the basis of above-mentioned reference grid.

The result obtained with regard to the load loss (Pa) of the function as air velocity (m/s) is shown in FIG. 9.

When air velocity increases, load loss, which steeply rises, is shown to the inspection of the Fig. 9.However, according to the present invention The load loss (for the grid that size is 1000 × 1000mm, about 50Pa is to 2.5m/s) of grid is relatively low.By comparing, Classical rain-proof grid shows load losses of the 30Pa to the degree of 2.5m/s, and explosion-proof flap show 200Pa and The up to load loss of the degree of 350Pa so that classics combination shows at least four times negative higher than grid according to the present invention Carry loss.

Be shown in FIG. 10 with regard to residual pressure obtain as a result, the residual pressure is according to incident angle α in outside It is measured on the inside of it after the grid during the simulation of explosion, to optimize the incident angle of triangular-section.

These results indicate that the reference grid in response to the parameter of predefined is effective to cyclone to explosion , because it is by blast wave divided by 10.

Even if adding the pressure (being usually 500Pa) by the fan generation of HVAC networks, the 1000Pa in grid downstream Residual pressure force value also be far below HVAC equipment performance conventional value (2000Pa).

The influence of the value of angle [alpha] is negligible (being less than 1%) for the ability of its " destruction " blast wave.

On the contrary, as shown in Figure 11, the value of angle [alpha] under normal operation from 25 ° to the load loss of grid emphatically It acts on.Angle is smaller, and streamline is disturbed smaller.

The spacing h1 between the bar 100 of grid is had studied on the basis of Figure 12, Figure 12 is shown to be applied in simulation Residual pressure during explosion as the grid downstream of the function of spacing.

Figure 12 is shown, under selected simulated conditions, grid faces the aerodynamic performance of explosion from the spacing h1 of 60mm It is initially the same.

Figure 13 shows the load loss of the grid according to reference in normal operation as the spacing h1's between bar 100 Function.

Figure 13 display poles 100 are tightened more, and grid is more effective to the resistance of explosion (and therefore to cyclone), still The certain loads loss of grid is also bigger.In addition, bar 100 must be spaced less than 80mm, to keep PGEW missiles and missile " cyclone of the steel pipe type of a diameter of 170mm ".

However, the distance between bar h1 must be as maximum as possible, the phenomenon that with relative to ice blockage, improve to grid Protection.

Fig. 9 to Figure 13 with solid line for each curve for showing the average value corresponding to the analogue value obtained, and And show in phantom the terminal up and down of the range corresponding to probable value of these values.

In view of the foregoing, inventor thinks the spacing h1 of the about 80mm between the bar of grid:

Ensure the sizable effect of grid in face of explosion,

Block cyclone and the missile of PGVE

Limitation grid is exposed to frost phenomenon.

Had studied relative to profile shown in Fig. 3, Fig. 4 and Fig. 5 the triangular-section of bar in leading edge 110 The effect of geometry.

The associated analog carried out is shown:

For flat in leading edge 110 as shown in Figure 3:For 49Pa normal operating when load loss, The residual pressure in grid downstream is 990Pa under the influence of explosion,

For 44mm radius of curvature as shown in Figure 4 convex in leading edge 110:For 88Pa normal operating when Load loss, under the influence of explosion the residual pressure in grid downstream be 984Pa, and

For 44mm radius of curvature as shown in Figure 5 concavity in leading edge 110:For 42Pa normal operating when Load loss, under the influence of explosion the residual pressure in grid downstream be 998Pa.

The above results show relative to explosion (and therefore relative to cyclone), the shadow of the attack profile 110 of bar 100 Ring, i.e., the profile be flat, protrude or it is recessed, be negligible (influence less than 1%).

Therefore, grid according to the present invention may include bar 100, correspond in these geometries in leading edge 110 Either one or two of, it is flat, protrusion or recessed.

But in the flat geometry of leading edge 110, (it blocks and reflects and by cyclone with respect to explosion The result of satisfactory height is given for the wave of generation) it may be considered that for the section of the triangular-shaped profile of bar and be Preferably, up to a certain degree so that this flat have the advantages that be simple to manufacture in leading edge 110.In addition, passing through this bar wheel Exterior feature is so that implantation fin or ventilation opening 200 become easy.

It is investigated the geometry of fin 200.

Rainproof function is one in the basic function of air grid.The design optimization of rain-proof fin 200 prevent rain into Enter interior of building (even horizontal rain), and has with the abundant water to avoid notable load loss also between two bars Flat spacing ordinarily is about the degree of 80mm.

Structure proposed by the present invention benefits from the vertical plane 110 of bar 100, is used for explosion-proof and cyclone, with downward Rain is redirected, and the quantity of rain-proof fin is reduced two, to obtain gain for the load loss when the normal operating.

Simulation gives following result.

Certainly, the invention is not limited in previous embodiments, but are related to any modification according to its meaning.

Weather-proof grid according to the present invention can be mounted on new facility, but it can also be mounted on existing air grid Position, to replace existing air grid.

Weather-proof grid according to the present invention can be mounted on many facilities, such as, but not limited to the electric energy from core energy source Production facility.

Vertical or half vertical position that front is occupied in the position of use with reference to weather-proof grid and with reference to institute in Fig. 2 The horizontal plane H and vertical plane V that show describes weather-proof grid according to the present invention.

The side (being referred to position, outside is the outside of building) for being referred to as " outside " of grid corresponds to " first Side ".The side (being referred to position, inside is the inside of building) for being referred to as " inside " of grid corresponds to " the second side ".

And as pointed by not long ago, under some implantation conditions, according to the structure of building, during implantation, lattice The equal face M of grid cannot be perfect vertical.

In this case, it is possible to provide, the interarea 110 of bar 100 keeps coplanar with each other and is parallel to the frame of grid The equal face M of frame 300, as shown in Figure 17 or the interarea of bar 110 110 is tilted relative to the equal face of frame 300, is kept each other Parallel but offset is so that these faces 110 are kept vertically to use, as shown in Figure 18.In all cases, fin 200 Width is preferably adapted to be so that the free edge 210 of fin is located at least in the top edge with the interarea 110 of lower square bar 100 On 114 identical horizontal lines, or even it is positioned lower than this line.

Claims (21)

1. a kind of weather-proof air grid, including:

A series of rigid rods (100), it is parallel to each other and non-vertical on the whole, have:First, in leading edge (110), is directed toward The first side for being intended to point to outside of the grid, is parallel to the equal face of the grid on the whole, and is intended on the whole vertically To use;And two secondary surfaces (120,130), it is assembled when mobile far from interarea (110), in two adjacent stems (100) channel (140) is limited between, the channel is intended to refer to from first side for being intended to point to outside along the grid The directional divergence of the second side inwardly, and

A series of deflection fins (200) are respectively attached to the base portion (114) of the interarea (110) of each bar (100), the wing Piece (200) is oblique towards the first inclination for being intended to point to outside relative to the interarea (110) according to certain gradient and height, So that the free edge (210) of the fin (200) at least with interarea of the equal face in lower square bar (100) that is orthogonal to the grid (110) being projected on the same line on top edge (112), or even cross over the interarea (110) so that the fin (200) deflector is formed, and with the certain height for being more than a distance (h1), which will be from a bar (100) The lower edge (114) of interarea (110) and the top edge (112) of the interarea (110) of bar from below (100) separate.

2. grid according to claim 1, which is characterized in that the bar (100) is according in horizontal to about positive and negative 10 ° Longitudinal center axis extends.

3. grid according to any one of claim 1 or 2, which is characterized in that the bar (100) is cut with triangle Face.

4. grid according to any one of claim 1 to 3, which is characterized in that each the interarea (110) of bar (100) is Flat.

5. grid according to any one of claim 1 to 4, which is characterized in that the secondary surface of the bar (100) (120, 130) it is flat.

6. grid according to any one of claim 1 to 5, which is characterized in that it is in isoceles triangle that the bar (100), which has, The section of the form preferably in equilateral triangle of shape form.

7. grid according to any one of claim 1 to 6, which is characterized in that the vertical height of each interarea (110) (h2) ratio between the vertical height (h1) at the interval limited between two adjacent stems (100) is between 0.5 and 2, preferably The degree that ground is about 1 to ± 10%.

8. grid according to any one of claim 1 to 7, which is characterized in that the interarea (110) of each bar (100) Highly (h2) is greater than or equal to 70mm.

9. grid according to any one of claim 1 to 8, which is characterized in that the interarea (110) of each bar (100) Highly (h2) between 70 and 85mm, highly advantageous between 60 and 80mm.

10. grid according to any one of claim 1 to 9, which is characterized in that the secondary surface of the bar (100) (120, 130) gradient between horizontal plane (α) is less than 40 °, preferably smaller than 30 ° and is highly advantageous less than 25 °.

11. grid according to any one of claim 1 to 10, which is characterized in that separate two adjacent stems (100) away from It is less than or equal to 90mm from (h1).

12. grid according to any one of claim 1 to 11, which is characterized in that separate two adjacent stems (100) away from From (h1) between 50 and 85mm, highly advantageous between 60 and 80mm.

13. grid according to any one of claim 1 to 12, which is characterized in that each fin (200) in it in bar (100) width L, each fin (200) and the horizontal plane considered between the connection edge (114) and its free edge (210) on Between gradient β, by the inside convergent point (116) of two secondary surfaces (120,130) of two adjacent stems (100) separate away from Vertical height h2 from d and each interarea (110) of the bar (100) follows following relationship:(L×sinβ)>=(d-h2).

14. grid according to any one of claim 1 to 13, which is characterized in that at least one in the fin (200) Relevant bar (100) is connected to by fixed connection portion a bit.

15. grid according to any one of claim 1 to 13, which is characterized in that at least one in the fin (200) Relevant bar (100) is connected to by hinged joint portion a bit.

16. the grid according to any one of claim 1 to 15, which is characterized in that two opposite with the interarea (110) Linking part (116) between a secondary surface (120,130) limits sharp or rounding the inside edge of bar (100), provides 5mm is advantageously below the maximum curvature radius of 3mm.

17. the grid according to any one of claim 1 to 16, which is characterized in that each fin (200) and horizontal plane it Between gradient (β) be less than 50 °, preferably smaller than 45 °, and highly advantageous be less than 30 °.

18. the grid according to any one of claim 1 to 17, which is characterized in that the bar (100) and the fin (200) it is formed, is preferably made of steel by metal.

19. the grid according to any one of claim 1 to 18, which is characterized in that the fin (200) being formed from steel Thickness (e) at least equal to 0.8mm.

20. the grid according to any one of claim 1 to 19, which is characterized in that the bar (100) is by frame support (300) it carries.

21. a kind of building, including at least one grid according to any one of claim 1 to 20 comprising:

A series of rigid rods (100), it is parallel to each other and non-vertical on the whole, have first on the outside of pointing in leading edge (110) and two secondary surfaces (120,130), assembled when mobile far from interarea (110), two adjacent stems (100) it Between limit the channel (140) dissipated from outside to inside, and

A series of deflection fins (200) are respectively attached to the base portion (114) of the interarea (110) of each bar (100), the wing Piece (200) is tilted according to certain gradient and height relative to the interarea (110) outward so that the fin (200) Top edge (112) of the free edge (210) at least with the interarea (110) of lower square bar (100) on same horizontal line, or Even cross over the interarea (110) so that the fin (200) forms deflector, and with specific more than a distance (h1) Highly, which will come from the interarea of the lower edge (114) and bar (100) from below of the interarea (110) of a bar (100) (110) top edge (112) separates.