JPH1122700A - Air port, and air circulator using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly circulate the air by flatly jetting the air. SOLUTION: A jetting slit 11 of a point of a nozzle 10 is linearly formed in such manner that a jetting length a11 is longer than a jetting width b11 . The sectional shape of a rectification part 21 of a venturi 20 has the shape of venturi, and an effective length a21 is set to be longer than an effective width b23 of a throttle part 23. The primary air G1 jetted from the linear jetting slit 11 increases its flow velocity when it is passed through the throttle part 23, whereby the secondary air G2 near an inlet 22 is induced, and the mixture air G12 of the primary air G1 and the secondary air G2 is jetted from an outlet 24. Whereby the mixture air G12 is jetted with high capacity with the spread in a crosswise direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet for circulating air in a space by forming an air flow, and an air circulation device using the same.

[0002]

2. Description of the Related Art As an air outlet for blowing air to circulate air in a space, a venturi is provided at the tip of a nozzle.
No. pp. 147-64.

In this device, a cylindrical venturi is mounted coaxially with the nozzle at a position slightly away from the tip of the nozzle.

[0004] The air supplied to the nozzle is ejected linearly from the tip of the nozzle as primary air, and this primary air blows straight through the venturi. When the primary air passes through the throttle of the venturi, the flow velocity increases and the dynamic pressure increases, and the static pressure decreases accordingly. For this reason, air near the nozzle tip is attracted as secondary air by the primary air,
It is blown out of the Venturi with the primary air. Accordingly, the amount of air blown out of the venturi increases and the amount of circulated air increases, so that air is effectively circulated in the space.

[0005]

However, according to the above-mentioned prior art, although the primary air passes through the venturi, the secondary air has a moderate attracting effect,
Since the primary air ejected from the nozzle tip is linear, the spread of the primary air and the secondary air ejected from the venturi is small.

Therefore, when a long reach distance is required for the airflow, for example, when the airflow is used for air circulation (convection) in a room with a high ceiling or for ventilation in an underground parking lot elongated horizontally. It is extremely effective, but when the air flow requires a flat spread, for example, when used for air circulation in a space having a large area such as a plant factory, or for cooling and heating a general living room However, when it is not preferable that the cool air or the warm air directly hit the human body, there is a problem that it is not suitable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air outlet suitable for a case where an airflow needs to be spread in a plane, and an air circulation device using the same.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and the present invention according to claim 1 has an air supply port for blowing out supplied air into a space. A nozzle having a linear ejection slit at its tip for ejecting the blown air as primary air, and a rectifying portion formed in a plane along the blow-through direction of the primary air ejected from the ejection slit, and A venturi disposed in front of and facing the ejection slit at a predetermined distance from the ejection slit, and a support member that holds the venturi in front of the nozzle and positions the venturi with respect to the nozzle, and the ejection slit includes The ejection length is set to be sufficiently long with respect to the ejection width, and the venturi has a throttle portion, and the circulation length is sufficiently long with respect to the circulation width of the throttle portion. And the flow length is set longer than the jet length, and in any vertical cross-sectional shape in a direction orthogonal to the flow length, from the upstream side to the downstream side of the primary air flow. In order,
An inlet which is opposite to the ejection slit and is wider than the ejection slit, the throttle portion which is narrower than the inlet, and an outlet which is wider than the throttle portion; Mouth, the throttle portion, with blowing through the outlet, attracts air near the inlet as secondary air, and blows out with the primary air from the outlet through the throttle. I do.

In the present invention according to claim 2, the nozzle is constituted by at least two members which can be relatively moved to change one or both of the ejection width and the ejection length of the ejection slit. It is characterized by having.

[0010] In the present invention according to claim 3, the venturi is constituted by at least two members which can be relatively moved to change one or both of a width and a length of the rectifying portion. It is characterized by.

According to a fourth aspect of the present invention, the distance between the ejection slit of the nozzle and the venturi is changed by expanding and contracting the support member. I do.

According to a fifth aspect of the present invention, the support member is connected to the nozzle and the venturi to integrally form the nozzle, the support member, and the venturi, and the nozzle is blown out from the rectifying portion. A movable portion for changing the directions of the primary air and the secondary air.

According to a sixth aspect of the present invention, there is provided an air circulating apparatus for circulating air in a space, wherein the air outlet according to any one of the first to fifth aspects and air is supplied to the air outlet. And a blower.

According to a seventh aspect of the present invention, a duct is provided between the blower and the air outlet to connect them.

[0015]

According to the first aspect of the present invention, the primary air jetted from the linearly long jet slit on the nozzle side blows through the flat rectifying portion on the venturi side. . At this time, when the primary air flows through the throttling portion of the venturi, the flow velocity increases, the dynamic pressure increases, and the static pressure decreases accordingly. Therefore, the air near the inlet of the venturi is attracted as secondary air. Thus, unlike the general venturi, the primary air and the secondary air induced therefrom are blown out linearly from the outlet of the venturi, and the effective length of the throttle (or the outlet) Length). Therefore, for example, it is suitable for air circulation in a space having a large area, or air circulation in a case where it is not preferable for the cool air or warm air to directly hit a human body as in the case of cooling and heating of a general living room.

According to the second aspect of the present invention, the nozzle can change one or both of the ejection width and the ejection length of the ejection slit by relatively moving the two members. It is possible to adjust the amount and spread of the primary air ejected from the ejection slit.

According to the third aspect of the present invention, the venturi comprises:
By moving the two members relatively, one or both of the width and the length of the rectification unit can be changed, so that the air volume and the spread of the primary air and the secondary air ejected from the rectification unit Can be adjusted. Here, the width of the rectifying portion means a dimension corresponding to the width of the band, assuming that the shape of the outlet of the rectifying portion when viewed from the front is, for example, a band shape. The term means a dimension corresponding to the length of the band.

According to the fourth aspect of the invention, the distance between the nozzle and the venturi is changed by expanding and contracting the support member, so that even when the air volume of the primary air ejected from the ejection slit of the nozzle is constant, the venturi is formed. It is possible to adjust the total air volume of the primary air and the secondary air blown out of the air.

According to the fifth aspect of the present invention, by moving the movable portion of the nozzle, it is possible to adjust the blowing direction of the primary air and the secondary air blown from the venturi.

According to the sixth aspect of the present invention, the air circulation device can blow out the air supplied from the blower from the air outlet according to any one of the first to fifth aspects, so that the air can be blown out. The air in the space can be circulated well.

According to the seventh aspect of the present invention, the duct is interposed between the air outlet and the blower, so that the length of the duct is appropriately adjusted, so that the air outlet and the blower are separated from each other. Can be installed. Therefore, for example, it is also possible to arrange the air outlet in the room and arrange the blower outside the room.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment 1> FIGS. 1 (a), (b),
(C) shows the first embodiment of the air outlet according to the present invention. In these figures, (a) is a top view and (b)
Is a side view, and (c) is an XX line view of (a). In the following description, regarding the directions of up, down, front, rear, left and right, the upper side in the side view of FIG. 1B and the cross-sectional view of FIG. , Right is referred to as “rear”, and the upper side in the top view of FIG. 1A is referred to as “right”, and the lower side is referred to as “left”.

The air outlet 1 shown in these figures comprises a nozzle 10, a venturi 20, a support stay (support member) 3
0. The details will be described below in this order. Since the nozzle 10 and the venturi 20 are made of a thin metal plate or a synthetic resin, these thicknesses are not taken into account in the following description.

The nozzle 10 is connected to a front wall 42 of a rectangular parallelepiped chamber box 42 attached to a lower end of a duct 41.
is attached to a, the tip of the nozzle 10 (the front end), the ejection slit 11 is provided which acts as a spout for primary air G ₁ below. The nozzle 10 has a rectangular shape in a top view of FIG.
In a side view of (b), it is formed in a trapezoidal shape. That is, the nozzle 10 is configured such that the length in the left-right direction is constant, and the width in the up-down direction gradually decreases from the base end (rear end) to the front end (front end), and is provided at the front end. and jetting slit 11 is formed in a (linear in the first embodiment) ejection width of vertical jet length in the horizontal direction at a ₁₁ is linear b _11.

In the present invention, these ejection slits 1
For the ejection length a ₁₁ and the ejection width b _{11 of} No. 1, the ejection length a
₁₁ has one of the features that set sufficiently longer than the ejection width b ₁₁ a, further, in the first embodiment, the shape of the linear jetting slit 11 is set to be characterized by a linear shape. The shape of the ejection slit 11 is characterized in that it is formed in an arc shape, a circumferential shape, and an intermittent arc shape in this order in Embodiments 2, 3, and 4 described below. in either embodiment, as described above, jetting length a with respect to jet width b _11
11 (e.g., corresponds to the circumference of the ejection slit in the third embodiment) is set to be sufficiently long.

As described above, since the ejection slit 11 is formed linearly in the nozzle 10, the air G supplied to the nozzle 10 from the blower (not shown) through the duct 41 and the chamber box 42 is provided. There has been configured to be ejected with the lateral direction of the spread when it is ejected from the ejection slit 11 as primary air G _1.

Next, the venturi 20 has a rectifying section 21 formed in a planar shape inside thereof, and the primary air G ₁ jetted from the jet slit 11 of the nozzle 10 described above.
Are configured to blow through along the planar rectification portion 21. Here, the “plane” refers to the vertical width of the rectification unit 21 (the introduction unit 22, the throttle unit 23, and the
This means that each width b ₂₂ , b ₂₃ , b ₂₄ ) of the deriving unit 24 is smaller than the length c ₂₁ in the front-rear direction and the length a ₂₁ in the left-right direction.

The venturi 20 is formed in a rectangular shape when viewed from the top in FIG. 1A, and in a so-called venturi shape (a type in which the flow path is narrowed at the center) in a side view in FIG. 1B. Have been. This venturi-type is a common shape in any cross-section in a direction perpendicular to the jetting length a ₁₁ direction of ejection slit 11 described above. The rectification unit 21
Figure 1 (c), the order from the upstream side to the downstream side along the flow of the primary air G _1, inlet 22, the diaphragm portion 2
3. It has an outlet 24. The inlet 22 and the throttle unit 2
3. The width of the outlet 24 in the vertical direction is b ₂₂ , b ₂₃ ,
Assuming that b ₂₄ , these values are set so as to satisfy b ₂₂ > b ₂₃ <b ₂₄ . That is, in the cross-sectional shape shown in FIG. 1C, the rectifying section 21 is vertically surrounded by a smooth curve convex toward the inside, and the width in the up-down direction is defined by 23, and gradually increases from the throttle portion 23 to the outlet 24. In addition, the rectifying unit 21 has a length a _{21 in} the left-right direction longer than the above-described ejection length a ₁₁ in the left-right direction of the ejection slit 11 of the nozzle 10 (a ₂₁ > a ₁₁ ), and the vertical length a The width b _{23 in the} direction (in particular, referred to as “flow width”) is
Longer than the ejection width b ₁₁ of jetting slit 11 (b _23> b
₁₁ ) It is set to be.

Next, the support stay 30 is provided with the nozzle 1
This is a rod-shaped member for holding and positioning the venturi 20 in front of 0, and two members are used in the first embodiment. Two support stays 30, 30
Has one end fixed to the left side wall 42b and the right side wall 42c of the chamber box 42, and the other end fixed to the left side wall 20b and the right side wall 20c of the venturi 20. As shown in FIG. 1C, the support stays 30, 30 connect the venturi 20 to the nozzle 10
At a position separated from the ejection slit 11 by a predetermined distance so as to be coaxial with the nozzle 10.
The rectifying portion 21 of the venturi 20 covers the entire downstream side of the ejection slit 11 of the nozzle 10. That is, as described above, the rectifying section 21 is formed larger than the ejection slit 11 of the nozzle 10 even in the throttle section 23 having the smallest area, and therefore, the primary air G ejected from the ejection nozzle 11 is formed. Reference numeral ₁ denotes a configuration that can smoothly flow through the rectification unit 21 of the venturi 20.

Referring to FIG. 2, the dimensional relationship between the ejection slit 11 of the nozzle 10 and the rectifying portion 21 of the venturi 20 will be described in further detail.

As described above, b _{11 in} the figure is the ejection width of the ejection slit 11, b ₂₃ is the flow width of the throttle ₂₃ of the rectification unit 21, and is newly added from the ejection slit 11 to the rectification unit 21.
The distance to the inlet 22 is c ₂₂ , and the ejection slit 1 is also
Assuming that the distance from 1 to the aperture unit 23 is c ₂₃ , these values are represented by b ₁₁ : b ₂₃ = 1: (1.5 to 5) b ₁₁ : c ₂₂ = 1: (1 to 3) b ₁₁ : c ₂₃ = 1: (3 to 5) may be set.

More preferably, b ₁₁ : b ₂₃ = 1: (2.5-3) b ₁₁ : c ₂₂ = 1: (1.5-2.5) b ₁₁ : c ₂₃ = 1: (3 .5 to 4.5).

However, the values of b ₁₁ , b ₂₃ , c ₂₂ , and c ₂₃ are not independently set, but are set in relation to each other. For example, setting small c _22, since the secondary air G ₂ passages are attracted from the inlet port 22 is narrowed, correspondingly, to decrease the b _23,
Better to increase the suction force by increasing the flow velocity as it passes through the primary air G ₁ is constricted portion 23. These values are different from depending on the flow velocity and flow rate of the primary air G ₁ is ejected from the ejection slit 11. These dimensional relationships also apply to the other embodiments described above. Note that these values may be appropriately set by experiments or the like.

Next, the operation of the air outlet 1 having the above configuration will be described.

Air G flows from a blower or the like (not shown) to duct 4
1, when supplied to the nozzle 10 through the chamber box 42, the air G is ejected from the overall long straight jetting slit 11 in the lateral direction (total length) as primary air G _1. This primary air G ₁ is blown into an inlet 22 larger than the ejection slit 11 on the side of the venturi 20,
The air is blown out from the outlet 24 through the throttle 23. The primary air G ₁ is passing through the throttle portion 23, the dynamic pressure is increased increased flow rate, correspondingly, the static pressure is lowered. Thus, the vicinity of the air inlet 22 is attracted from the inlet 22 as secondary air G _2, it is blown out from the outlet port 24 via the throttle section 23 with the primary air G _1. In other words, outlet 2
4 shows that the primary air G ₁ and the secondary air G
Mixed air G _{12 2} and are mixed is blown. Such attraction of the secondary air G ₂ due to primary air G ₁ is blowing through the throttle portion 23 of the rectifying unit 21, the lateral direction length a ₁₁ (the first embodiment of the rectifying unit 21, throttle unit to be done over the entire length of the distribution length and the same) of 23, mixed air G ₁₂ having a spread in the lateral direction over the entire length of the length a ₁₁ is blown out. The mixed air G _12, in addition to having a spread in the lateral direction, 2-3 times the amount in the case of the flow rate only primary air G _1, when the condition is good Amount of 6-7 times.

Since such an air outlet 1 has a planar spread in the air flow and has a large flow rate, the air outlet 1 is used for air circulation in a space having a large area such as a plant factory. Also, it is suitable for a case where it is not preferable for the cool air or warm air to directly hit the human body as in the case of the general heating and cooling of a living room.

<Embodiment 2> FIGS. 3A, 3B,
(C) shows an air outlet 1A according to the second embodiment. These figures are top views, respectively, as in the first embodiment.
It is a side view, and the XX line arrow view of (a). In the second embodiment, as compared with the first embodiment, the ejection slit of the nozzle, which is linear, is formed in an arc shape, and the rectifying portion of the rectangular venturi is formed in a fan shape. It is characterized by being. The same members and the like as those in the above-described first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated (this omission is the same in the third and subsequent embodiments).

As shown in FIG. 3A, the nozzle 10A is connected to the front wall 4 of the chamber box 42 at the lower end of the duct 41.
2a. In the nozzle 10A, the ejection slit 11A at the tip is formed in an arc shape, and the left and right side walls 10a, 10b are respectively expanded outward. Further, the nozzle 10A has a trapezoidal shape as in the first embodiment, as shown in FIG.

The venturi 20A is formed in a fan shape (a shape surrounded by two arcs having different radii and two straight lines in the radial direction) in a top view shown in FIG.
Further, in a view taken along the line XX shown in FIG. 3C, it is formed in a Venturi shape similar to the first embodiment. The rectifying portion 21A, which is a space inside the venturi 20A, has an arbitrary cross section in a direction orthogonal to the ejection slit 11A as shown in FIG.
It has the same Venturi shape as in FIG. That is,
Rectifier 21A includes sequentially from the upstream side along the flow of the primary air G _1, inlet 22, than this smaller aperture portion 23, a large electrical outlet 24 than this. The left and right side walls 20a and 20b of the venturi 20A are each expanded outward. The venturi 20A is supported by the chamber box 42 via the support stays 30, 30 at a position separated from the ejection slit 11A by a predetermined distance so as to cover the front of the ejection slit 11A.

The above-described structure, according to the air outlet 1A of the second embodiment, is blown out from the venturi 20A, mixed air G ₁₂ with primary air G ₁ and the secondary air G ₂ is, the above-described embodiment As in the case of 1, the air volume is increased to have a spread in the left-right direction, and further, the air is blown out at an angle along the left and right side walls 20a, 20b in the left-right direction, respectively.

<Embodiment 3> FIG. 4A shows a top view of an air outlet 1B according to Embodiment 3, and FIG.
(A) is a view taken along line XX.

In the third embodiment, the chamber box 42 is formed in a cylindrical shape, and the nozzle 10B is attached in an annular shape over the entire outer peripheral surface 42d. The nozzle 10B has a circumferential ejection slit 11B at the tip (outer peripheral side). Spout slit 1 in this case
The ejection length of 1B is the circumferential length of the ejection slit 11B.

In front of the nozzle 10B, a venturi 20 is provided.
B is provided. The venturi 20B is formed in an annular shape, and therefore, the rectifying portion 21B formed inside the venturi 20B is also formed in an annular shape. FIG.
As shown in (b), it has a venturi shape as in the first and second embodiments. That is, the primary air G ₁
From the upstream side in the direction of the flow of
The throttle unit 23 and the outlet 24 are provided. In this case, the effective length of the throttle unit 23 corresponds to the circumference of the throttle unit 23.

In the third embodiment, the support member 30
Are provided at four positions that divide the circumferential direction into four equal parts, and are respectively fixed to the upper part and the lower part near the inlet 22 of the venturi 20B.

According to the air outlet 1B having the above structure, the primary air G ₁ blown out from the circumferential blowing slit 11B.
When passing through the rectifying unit 21B of the venturi 20B,
Attract secondary air inlet 22 near, blown circumferentially as a mixed air G ₁₂ from the outlet port via a throttle section 23. Therefore, mixing the air G ₁₂ is, in addition to the air volume is increased, because it is blown out radially, for example when placed in a room, it is possible to further promote the circulation of indoor air.

[0047] In the third embodiment, delivery direction of the mixed air G ₁₂ is, unlike was horizontal in the first and second embodiments described above, is oriented obliquely downwards. The blowing angle in the vertical direction may be appropriately set as needed.

<Fourth Embodiment> FIG. 5A shows a top view of an air outlet 1C according to a fourth embodiment, and FIG.
(A) is a view taken along line XX.

In the fourth embodiment, the nozzle 10B and the venturi 20B formed in an annular shape in the above-described third embodiment are divided into four parts to form a nozzle 10C and a venturi 20C, respectively. Is similar.

According to the fourth embodiment, in addition to the functions and effects of the third embodiment, the vertical directions of the four nozzles 10C and the venturi 20C can be set independently of each other. it is possible to set the blow-out angle in the vertical direction of the air G ₁₂ separately. For example, this is effective when the indoor space is elongated, that is, when the shape of the indoor space when viewed from above is an extremely rectangular shape.

<Fifth Embodiment> In a fifth embodiment, an air circulation device 2 is configured by combining an air outlet 1 and a blower whose basic configuration is similar to that of the first embodiment. .

FIG. 6A is a partially cutaway front view, and FIG.
FIG. 6C is a side view, and FIG. 6C is a longitudinal sectional view as viewed from the side.

The air outlet 1 includes a nozzle 10, a venturi 20, and a support member 30 similar to those shown in FIG.

On the other hand, the blower 50 shown in these figures covers a motor 51, a cylindrical impeller 52 that is rotated and driven by the motor 51, a box-shaped outer cover 53 serving as an outer frame of the blower 50, and an impeller 52. Inner cover 54, filter 5
5, a support 56 for attaching the blower 50 to the wall W and the like, and an intake port 57 are provided. Filter 55 described above
Is mounted on the intake port 57 of the blower 50. In addition,
As the filter 55, air purifying / deodorizing / deodorizing / fragrance /
A device having functions such as sterilization and sterilization may be attached.

The above-described air outlet 1 is directly attached to the blower 50.

The operation and effect of the air circulating device 2 according to the fifth embodiment are the same as those of the first embodiment, except that the air outlet 1 and the blower 50 are integrated. Therefore, the operation and effect of the air outlet 1 can be easily brought out simply by attaching the air circulation device 2 to a room or the like.

<Sixth Embodiment> FIG. 7A is a partially cutaway front view of an air circulation device 2A according to a sixth embodiment of the present invention.
FIG. 7B is a side view, and FIG. 7C is a longitudinal sectional view as viewed from the side.

The air circulating device 2A is the same as that of the above-described fifth embodiment.
Is different from the blower 50 of the air circulation device 2 in which the intake port 57 and the filter 55 are arranged on the upper surface.
Has an inlet 57 and a filter 55 on both left and right sides. The other points are the same as those of the air circulation device 2 described above.

The air circulating apparatus 2A having the above-described structure is similar to that shown in FIG.
As shown in (b), good air intake can be obtained even when it is mounted at the corner between the ceiling C and the wall W.

Seventh Embodiment FIG. 8A is a top view of an air circulation device 2B according to a seventh embodiment of the present invention, and FIG. 8B is a view taken along line XX of FIG. .

The blower 50 B of the air circulation device 2 B includes a motor 51, an impeller 52 having a horizontal rotating surface and rotated by the motor 51, an outer cover 53, and an inner cover 5.
4 and a filter 55 attached to the intake port 57. The air outlet 1 is the same as that of the first embodiment,
Mounted in front of blower 50B.

In the air circulation device 2B having the above configuration,
The impeller 52, the air G is sucked from the rear side, blowing the mixed air G ₁₂ from the air outlet 1 on the front side.

<Eighth Embodiment> FIG. 9A is a top view of an air circulation device 2C according to an eighth embodiment of the present invention, and FIG. 9B is a view taken along line XX of FIG. 9A. .

The air circulation device 2C of the eighth embodiment is different from the air circulation device 2C of the seventh embodiment in that
7 and the filter 55 are arranged on the lower surface side, and the air outlet 1A of the second embodiment is replaced by the air outlet 2A of the second embodiment (see FIG. 1). 3 reference) is mounted, and delivery direction of the air mix G ₁₂ is different from the point directed obliquely downward, the other points, embodiment 7
Is the same as

In the air circulating apparatus 2C having the above configuration,
The impeller 52, the air G is sucked from the lower side, blown obliquely downward as a mixed air G ₁₂ from the air outlet 1 on the front side.

<Ninth Embodiment> FIG. 10A is a top view of an air circulation device 2D according to a ninth embodiment of the present invention.
(B) is a view taken along line XX of (a), and FIG. 11 is a partially cutaway perspective view.

The air circulating device 2D is the same as that of the above-described eighth embodiment.
Of the air blower 50C (see FIG. 9) and the air outlet 1B (see FIG. 4) of the third embodiment described above.

The above-described air circulating device 2D includes a blower 50C
Can be blown obliquely downward from the entire circumference of the annular venturi 20B of the air outlet 1B.

<Embodiment 10> FIG. 12 shows Embodiment 1
0 shows a perspective view. In the tenth embodiment, the air outlet 1
Shows the blowing angle can be changed examples of mixed air G ₁₂ blown from.

The air outlet 1 is connected to the nozzle 1 as described above.
0, a venturi 20 and a support member 30, and a part of the nozzle 10 is provided with, for example, a bellows-shaped movable part 10.
c is provided.

[0071] By operating the movable part 10c, the distal end side and the supporting member 30 and the venturi 20 of the nozzle 10 and can be moved integrally with the vertical direction (arrow K ₁ direction). Thereby, the mixed air G _{12 in the} vertical direction is
Can be changed. Incidentally, it is of course can also be moved in the horizontal direction (arrow K ₂ direction).

In the same figure, if the support stay (support member) 30 is configured to be extendable, the distance (c _{11 in} FIG. 2) between the ejection slit 11 at the tip of the nozzle 10 and the venturi 20 is appropriately changed. It is also possible.

<Embodiment 11> FIGS. 13 (a) to 13 (d)
, An example in which the outlet width b of the mixed air G ₁₂ discharged from the venturi 20 and variable. (A) is a side view when the blowing width b is set to be small, (b) is a perspective view of the same, (c) is a side view when the blowing width b is set to be large, and (d) is a perspective view of the same.

The nozzle 10 is connected to the upper member 10m and the lower member 10n.
The upper and lower members 20m and 20n make the venturi 20 relatively movable in the vertical direction. Thereby, the upper member 10m
And the lower member 10n, and the upper member 20m and the lower member 20
When the distance to n is narrowed, as shown in (a) and (b), the blowing width b becomes narrow, and when it is widened,
As shown in (c) and (d), the blowing width b increases.

<Twelfth Embodiment> FIG. 14 shows an air circulation device 2E according to a twelfth embodiment.

The air circulation device 2E shown in FIG.
The air outlet 1B shown in FIG. 4 and the blower 60 are connected via a duct 70, and the blower 60
And the air outlet 1B is attached to the ceiling C inside (room) of the room R.

The air blown from the outdoor blower 60 is sent to the indoor air outlet 1B via the duct 70, and is blown out from the air outlet 1B to circulate in the room. In the figure, the secondary air G ₂ dotted lines which are attracted to the venturi 20B, mixed air G ₁₂ solid lines blown out from the venturi 20B, three o'clock air G ₃ caught are attracted by the two-dot chain line mixing air G ₁₂ Show.

According to the above configuration, the indoor air can be smoothly and efficiently circulated as compared with the conventional case, so that the indoor air can be mixed in a shorter time than in the conventional case. Can be achieved.

The blower 60 itself may be, for example, an air conditioner for cooling and heating or a blower connected to the air conditioner. In this case, it is possible to supply conditioned air such as cold and hot air to the room.

When the above-described air circulation device 2E is applied to a greenhouse for horticulture, the blower 60 can be connected to a CO ₂ generator or a pesticide supply device.

Further, the above-described air circulation device 2E can be used also as a digestion facility. In this case, the above-described blower 60 may be connected to a supply device of an inert gas for digestion or a digestive agent, or the blower 60 itself may be replaced with these supply devices.

[Brief description of the drawings]

FIG. 1A is a top view of an air outlet according to a first embodiment.
(B) is a side view of the air outlet of the first embodiment. (C) is an XX line arrow view of (a).

FIG. 2 is a diagram for explaining a dimensional relationship between a nozzle of an air outlet and a venturi.

FIG. 3A is a top view of an air outlet according to a second embodiment.
(B) is a side view of the air outlet of the second embodiment. (C) is an XX line arrow view of (a).

FIG. 4A is a top view of an air outlet according to a third embodiment.
(B) is an XX line arrow view of (a).

FIG. 5A is a top view of an air outlet according to a fourth embodiment.
(B) is an XX line arrow view of (a).

FIG. 6A is a partially cutaway front view of an air circulation device according to a fifth embodiment. (B) is a side view. (C) is a longitudinal sectional view seen from the side.

FIG. 7A is a partially cutaway front view of an air circulation device according to a sixth embodiment. (B) is a side view. (C) is a longitudinal sectional view seen from the side.

FIG. 8A is a top view of an air circulation device according to a seventh embodiment. (B) is an XX line arrow view of (a).

FIG. 9A is a top view of the air circulation device according to the eighth embodiment. (B) is an XX line arrow view of (a).

FIG. 10A is a top view of the air circulation device according to the ninth embodiment. (B) is an XX line arrow view of (a).

FIG. 11 is a partially cutaway perspective view of an air circulation device according to a ninth embodiment.

FIG. 12 is an operation explanatory view of an air outlet according to the tenth embodiment.

13 (a), (b), (c), and (d) are explanatory diagrams of the operation of the air outlet according to the eleventh embodiment.

FIG. 14 is an explanatory diagram of an operation of the air circulation device according to the twelfth embodiment.

[Explanation of symbols]

1, 1A, 1B, 1C air outlet 2, 2A, 2B, 2C, 2D, 2E air circulation device 10, 10A, 10B, 10C nozzle 10c Movable part 11, 11A, 11B, 11C ejection slit 20, 20, A, 20B, 20C venturi 21, 21A, 21B, 21C rectifier 22 inlet 23 throttle portion 24 deriving part 30 supporting members 50,50A, 50B, 50C, 60 blower 70 duct a ₁₁ jet length a ₂₁ flow length b ₁₁ ejection width b ₂₃ Flow width G Air G ₁ Primary air G ₂ Secondary air G ₃ Tertiary air G ₁₂ Mixed air

Claims (7)

[Claims] An air outlet for blowing supplied air into a space, a nozzle having a linear ejection slit for ejecting supplied air as primary air at a tip thereof, and primary air ejected from the ejection slit. A venturi formed in a plane along the direction of the blow-through, and a venturi disposed in front of the nozzle at a predetermined distance from the jetting slit to face the venturi; and holding the venturi in front of the nozzle. ,
A support member for positioning the venturi with respect to the nozzle, wherein the ejection slit has an ejection length set sufficiently long with respect to the ejection width, and the venturi has a throttle portion, and The distribution length is set to be sufficiently long with respect to the distribution width, the distribution length is set to be longer than the ejection length, and in any vertical cross-sectional shape in a direction orthogonal to the distribution length,
In order from the upstream side to the downstream side with respect to the flow of the primary air, an inlet that faces the ejection slit and is wider than the ejection slit, the narrower portion narrower than the inlet, and the narrower portion than the narrower portion. With a wide outlet, the primary air blows through the inlet, the restrictor, and the outlet, inviting air near the inlet as secondary air, through the restrictor. And blowing out the primary air from the outlet port together with the primary air. 2. The nozzle includes at least two members that can move relative to each other to change one or both of the ejection width and the ejection length of the ejection slit. The air outlet according to claim 1, wherein the air outlet is provided. 3. The venturi according to claim 1, comprising at least two members that are relatively movable to change one or both of a width and a length of the rectification unit. Or the air outlet according to claim 2. 4. The apparatus according to claim 1, wherein the support member is configured to be extendable and contractible, and the distance from the ejection slit of the nozzle to the venturi is changed by extending and contracting the support member. Any one of 3
The air outlet described in the item. 5. The nozzle, the support member, and the venturi are integrally formed by connecting the support member to the nozzle and the venturi, and the primary air and the secondary air blown out from the rectification unit by the nozzle. A moving part for changing a direction of the next air is provided.
The air outlet described in the item. 6. An air circulation device for circulating air in a space, comprising: the air outlet according to any one of claims 1 to 5; and a blower that supplies air to the air outlet. The air circulation device characterized by the above. 7. Between the blower and the air outlet,
The air circulation device according to claim 6, wherein a duct connecting the both is interposed.