JPH0519845U - Mixed type blowing device - Google Patents

Abstract

(57) [Summary] [Purpose] A suction port for sucking air in the air-conditioned space, mixing means for mixing air for air conditioning and air sucked in from the air-conditioned space, and air mixed by the mixing means for the air-conditioned space. Provide a blowout port to blow out, and arrange the blowout port and the suction port in close proximity, and at the blowout port,
In a mixed type blowing device provided with a diffusing means for diffusing blown air, the blown air is prevented from being short-circuited and sucked into the suction port. [Structure] The diffusion means 11a is configured to diffuse the blown air Am only in a specific direction around the blowout port 11, and the suction port 12 is arranged on the non-diffusion side of the blown air Am with respect to the blowout port 11. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is directed to a suction port for sucking air in an air-conditioned space, a mixing means for mixing air for air conditioning with the air sucked from the suction port, and a mixed air by the mixing means The present invention relates to a mixing type blowing device in which a blowout port for blowing air is provided, the blowout port and the suction port are arranged in proximity to each other, and a diffusion means for diffusing blown air is provided at the blowout port.

[0002]

[Prior Art]

 The above-described mixed-type blowing device mixes the air in the air-conditioned space that has been sucked in through the suction port with the air-conditioning air that has undergone temperature and humidity adjustment, etc. By reducing the state difference such as humidity difference, and by increasing the amount of air blown from the air outlet due to the mixing and the diffusion of the air blown out by the diffusing means, the stirring action on the air in the air-conditioned space is enhanced, and by these, Although the air-conditioning uniformity of each part of the air-conditioned space is improved, the relationship between the direction of diffusion of the air blown out from the air outlet and the position of the suction air outlet located close to the air outlet has hitherto been considered. No particular consideration was given.

As a specific example thereof, as shown in FIGS. 6 and 7, when arranging a downward opening outlet 11 and a suction outlet 12 on the device lower surface portion 10, the outlet 11 is installed. An air guide plate 11a, which is arranged in the central portion of the lower surface portion 10 and radially diffuses the blown air Am over the entire circumference around the blowout port 11, is provided as the diffusion means provided in the blowout port 11, while the downward opening is provided. Therefore, the suction ports 12 arranged in the vicinity of the blow-out port 11 are simply dispersed around the blow-out port 11.

In the figure, 17 is a nozzle for mixing the air Ar in the air-conditioned space 1 sucked in through the suction port 12 with the air conditioning air As supplied from the air supply passage 9, and F is the air conditioning air supplied from the nozzle 17. It is a mixed air duct that guides the mixed air Am of As and the intake air Ar from the air-conditioned space 1 to the outlet 11.

[0005]

[Problems to be solved by the device]

 However, in the conventional mixing-type blowing device, which has the structure shown in FIGS. 6 and 7 as an example, short-circuiting of the blown air Am from the blow-out port 11 to the suction port 12 arranged immediately after the blow-out is performed. A large amount of air is taken into the air, which causes a difference in temperature and humidity between the blown air Am and the air Ar in the air-conditioned space 1 to be reduced. There was a problem that the achievement of the desired function such as enhancing the stirring action was significantly hindered.

Therefore, as shown in FIG. 8, while the suction port 12 is arranged on the side where the blown air Am diffuses with respect to the blowout port 11, the direction of the opening surface of the blowing port 11 and the opening surface of the suction port 12 are arranged. By arranging the blowout port 11 and the suction port 12 relative to each other, the directions are orthogonal to each other (in other words, the direction in which the blown air Am is spread and the direction in which the suction port 12 is opened are the same direction). As for the above, we considered the one that suppresses / prevents the short-circuited intake of the blown air Am, but even in this case, the short-circuited intake of the blown air Am is suppressed to some extent as compared with those shown in FIGS. 6 and 7 above.・ Although it could be prevented, it was not enough.

An object of the present invention is to solve the above problems by reasonably improving the structure of the diffusing means and the relative positional relationship between the air outlet and the air inlet.

[0008]

[Means for Solving the Problems]

 A first characteristic configuration of a mixing type blowing device according to the present invention is a suction port for sucking air in an air-conditioned space, a mixing means for mixing air for air conditioning and air sucked from the suction port, and a mixing means thereof. In the configuration in which a blowout port for blowing the mixed air by the above into the air-conditioned space is provided, the blowout port and the suction port are arranged in close proximity, and a diffusion means for diffusing the blown air is provided in the blowout port, The diffusing means is configured to diffuse the blown air only in a specific direction around the blowout port, and the suction port is arranged on the non-diffused side of the blown air with respect to the blowout port. The actions and effects are as follows.

[0009]

[Action]

 That is, in the above-mentioned first characteristic configuration, the air blown out from the blowout port diffuses only to the side where the suction port does not exist, and the blown air diffusion to the side where the suction port exists is suppressed, The short circuit of air blown out to the suction port is effectively suppressed and prevented.

[0010]

[Effect of the device]

 As a result of the above operation, according to the first characteristic configuration of the present invention, the state difference such as the temperature / humidity difference between the blown air and the air in the air-conditioned space is reduced, and the air in the air-conditioned space is treated. We were able to greatly improve the desired functions such as enhancing the stirring action, and we were able to achieve even higher levels of uniform air conditioning for each part of the air-conditioned space.

[Second and Third Characteristic Configurations of the Present Invention] In a second characteristic configuration of the mixing-type blowing device according to the present invention, the opening surface direction of the outlet is substantially the same as the opening surface direction of the suction port. The outlet and the inlet are arranged relative to each other in a directional relationship.

That is, according to the second characteristic configuration described above, by making the opening surface direction of the blowout port and the opening direction of the suction port substantially in the same plane direction, the blowout port and the suction port are on the same plane of the device. It can be arranged and formed in a simple manner, and the arrangement portion of the blowout port and the suction port of the device can be made simple and compact.

A third characteristic configuration of the mixing type blowing device according to the present invention is that the blowing port and the suction port are arranged in a relationship in which a direction of an opening face of the blowing port and a direction of an opening face of the suction port are substantially orthogonal to each other. It is located relatively.

That is, according to the above-mentioned third characteristic configuration, in addition to the fact that the suction port is located on the non-diffusion side of the blowing air with respect to the blowing port, the opening surface direction of the suction port is the opening of the blowing port. By being substantially orthogonal to the surface direction, short-circuited intake of blown air into the suction port can be suppressed or prevented more effectively.

[0015]

【Example】

 Next, examples will be described.

FIG. 1 shows an air conditioning facility configuration for an air-conditioned room 1 requiring constant temperature and humidity. An air conditioner 5 including a filter 2, a temperature adjuster 3 and a humidity adjuster 4 is provided and the air conditioner 5 of the target room 1 is provided. The indoor air Ar is guided from the return air outlet 6 to the air conditioner 5 via the return air passage 7 to adjust the temperature and humidity, and the temperature and humidity adjusted air As is used as air conditioning air in a distributed arrangement on the ceiling of the target room 1 The target chamber 1 is maintained in a predetermined temperature and humidity state by being distributed and supplied to the target chamber 1 from each blowing device 8 to the target chamber 1.

In each of the blowing devices 8, the room air Ar drawn and sucked from the target chamber 1 is mixed with the air conditioning air As supplied from the air supply passage 9, and the mixed air Am is supplied to the target chamber 1. A mixing-type blowing device for blowing out is used, and the concrete structure of the blowing device 8 is as shown in FIGS. 2 to 4 in a state where the lower side opening of the device box 14 placed in the ceiling is closed. As shown in FIG. 2, on the face plate 10 arranged on the ceiling surface portion, blow-out ports 11 and suction ports 12 are formed in close proximity to each other with downward openings, and the blow-out ports 11 are formed on the downstream side. A reverse hopper type member 13 for forming a mixed air passage F as an opening in the device box 14 is attached to the back surface side of the face plate 10.

When the face plate 10 is attached to the equipment box 14 in a state where the lower surface side opening of the equipment box 14 is closed, the upstream side opening of the mixing air passage F is located at the center of the equipment box 14. In addition, the inner space of the device box 14 around the reverse hopper type member 13 serves as a suction chamber S communicating with the target chamber 1 through the suction port 12.

Further, in the device box 14, an air supply chamber 16 that receives the supply of the air conditioning air As from the connection air supply passage 9 is arranged so that the lower end portion thereof is located opposite to the upstream side opening of the mixed air passage F. At the lower end of the air supply chamber 16, there is provided a nozzle 17 for blowing the supplied air conditioning air As into the mixing air passage F at a high speed toward the downstream side thereof.

That is, as the air conditioning air As is blown into the mixed air passage F by the nozzle 17 at high speed, the indoor air Ar of the target chamber 1 in the suction chamber S is attracted and sucked into the mixed air passage F by the ejector action. This causes the mixed air Am of the intake air As and the blown air conditioning air As to be blown out from the outlet 11 into the target chamber 1, and the indoor air Ar in the target chamber 1 is sucked into the outlet 12 as well. The gas is sucked into the suction chamber S in the device box 14 via the.

In the present example, the amount of the indoor air Ar that is about 1 to 3 times the amount of the air-conditioning air As blown therein is attracted and sucked.

The air outlet 11 is provided with an air guide plate 11a for diffusing the air Am from the air outlet 11, and as described above, the air Ar in the target chamber 1 and the air conditioning air As blown in through the air inlet 12 are introduced. By mixing and blowing out the mixed air Am, in addition to reducing the temperature and humidity difference between the blown air Am and the air Ar in the target chamber 1, the amount of blown air from the blowout port 11 due to the mixing is reduced. By increasing the amount and diffusing the blown air Am by the air guide plate 11a, the stirring action on the air Ar in the target chamber 1 is enhanced, and thereby the air conditioning uniformity for each part of the target chamber 1 is enhanced.

In forming the blow-out port 11 and the suction port 12 on the face plate 10, the suction ports 12 are arranged at both ends of the face plate 10 in the long-side direction, and the suction ports 12 are connected to each other. While the air outlet 11 is arranged in between, the air outlet 11 is divided into two in a direction orthogonal to the direction in which the suction inlets 12 are arranged, and each of the two air outlets 11 divided into two is provided. The air guide plate 11a has an inclined or curved cross-sectional shape that is closer to the outer side of the face plate 10 in the direction in which the outlets 11 are arranged toward the downstream side, and each of the outlets 11 and the mixing air passages in the direction in which the inlets 12 are arranged. Only the structure having the entire width of F is used, whereby the blown air Am from each outlet 11 is faced in the direction in which the outlets 11 are arranged. It is configured to diffuse only to the outer side of the plate 10 (that is, only to the side where the suction port 12 does not exist).

That is, in diffusing the blown air Am from the blowout port 11, the blown air Am is diffused only in a specific direction around each blowout port 11, and the blowout port 11 and the suction port 12 are brought close to each other. In arranging, the suction port 12 is arranged on the non-diffusion side of the blowout air Am with respect to the blowout port 11, whereby most of the blowout air Am from the blowout port 11 blows out and a short circuit occurs immediately after. It is effectively prevented from being sucked into the suction port 12.

On the other hand, a plurality of the nozzles 17 are provided at the lower end of the air supply chamber 16, and the nozzles 17 have a suction chamber S in which the peripheral portion of the group of the air-conditioning air As jetted from the plurality of nozzles 17 is sucked. In addition to serving as an attracting flow path for the air Ar in each of the nozzles, a predetermined attracting flow path for the air Ar in the suction chamber S is formed between the air-conditioning air As jetting flows from the nozzles 17. A large number of them are arranged side by side in the width direction of the long side of the mixed air passage F at intervals d, and two rows are provided in the width direction of the short side of the mixed air passage F.

In other words, by the above-mentioned nozzle juxtaposed structure, the indoor air Ar that is attracted and sucked is divided into the air-conditioning air As blown from the nozzle 17 in a state of being subdivided, and the blown-in air conditioning air As and the attracted intake air Ar The stirring and mixing property in the process of passing the mixing air passage F is effectively improved, and thereby, the required length of the mixing air passage F is shortened and the apparatus can be downsized.

[Other Embodiments] Next, other embodiments will be listed.

The specific structure of the diffusing means for diffusing the blown air Am only in a specific direction around the blowout port 11 is not limited to the structure of the air guide plate 11a as in the above-described embodiment, and various modifications can be made.

As shown in FIG. 5, the air outlet 11 is arranged between the two air inlets 12, and the air guide plate 11a having the same structure as the above-described embodiment or another diffusing means is used to blow the air Am. In addition to positioning both suction ports 12 on the non-diffusion side of the blowing air Am with respect to the blowing port 11 so as to diffuse only in the direction orthogonal to the arrangement direction of the suction ports 12, the direction of the opening surface of the blowing port 11 The blow-out port 11 and the suction port 12 may be arranged relative to each other in a relationship in which the direction of the opening surface of each suction port 12 is orthogonal to each other.

The concrete structure of the mixing means for mixing the air Ar in the air-conditioned space 1 sucked in through the suction port 12 and the air-conditioning air As for which the temperature and humidity have been adjusted is the same as that of the above embodiment. Not limited to the above configuration, various configuration changes are possible.

The mixed-type blowing device according to the present invention can be applied not only to the constant temperature and humidity chamber but also to the air-conditioned space 1 for various purposes, and its installation position is limited to the ceiling part of the air-conditioned space 1. It is not fixed.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Fig. 1] Equipment configuration diagram of air conditioning equipment

[Fig. 2] Bottom view of the device

FIG. 3 is a front sectional view.

FIG. 4 is a side sectional view.

FIG. 5 is a perspective view showing another embodiment.

FIG. 6 is a sectional view of a conventional device.

FIG. 7 is a bottom view of the conventional device.

FIG. 8 is a device sectional view showing a comparative example.

[Explanation of symbols]

 1 Air-conditioned space 11 Blow-out port 11a Diffusion means 12 Suction port 17 Mixing means Ar Intake air As Air-conditioning air Am Blow-out air

Claims (3)

[Scope of utility model registration request] 1. A suction port (12) for sucking air (Ar) in an air-conditioned space (1), and air-conditioning air (As) and air (Ar) sucked from the suction port (12) are mixed. Mixing means (17) and its mixing means (17)
A blowout port (11) for blowing the mixed air (Am) according to the above into the air conditioning target space (1) is provided, and the blowout port (1)
1) and the suction port (12) are arranged close to each other, and blown air (Am) is blown into the blowout port (11).
A mixing type blowing device provided with a diffusing means (11a) for diffusing air, wherein the diffusing means (11a) is configured to diffuse the blowing air (Am) only in a specific direction around the blowing port (11). A mixing type blowing device in which the suction port (12) is arranged on the non-diffusion side of the blowing air (Am) with respect to the blowing port (11). 2. The outlet (11) and the suction port (12) are arranged such that the opening face direction of the outlet port (11) and the opening face direction of the suction port (12) are substantially in the same plane direction. The mixed-type blowing device according to claim 1, wherein and are arranged relative to each other. 3. The blowout port (11) and the suction port (1) in a relationship in which the opening face direction of the blowout port (11) and the opening face direction of the suction port (12) are substantially orthogonal to each other.
2. The mixed-type blowing device according to claim 1, wherein 2) and 2) are arranged relative to each other.