JPH07318124A - Blower unit - Google Patents

Abstract

PURPOSE:To obtain a blower unit in which a ventilating system of a relatively large scale space can be efficiently constructed without necessity of a duct and which can be adapted to improve heating. CONSTITUTION:A blower 7 for generating a jet is provided in a chamber 2 having a sound absorber 11 in an inner wall. A suction port is provided at one side of the chamber 2, and a hollow flexible support 12 for supporting a nozzle 13 is provided at the other side. A front side plate 5 provided with the support 12 is detachably provided at the chamber. The diffusing direction of the nozzle 12 can be freely set. The front side plate is replaced thereby to be easily converted to a unit for discharging the jets in many directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower unit suitable for promoting ventilation and improving heating effect.

[0002]

2. Description of the Related Art For example, the following method has been conventionally used for ventilation of an underground parking lot where a large amount of strict ventilation is stipulated by law, an indoor pool with a high ceiling, a gymnasium, a hall, a large lobby, etc. , Means have been taken. (1) A method in which large air supply ducts and exhaust ducts are installed in a distributed manner as much as possible in the target room. (2) A method of providing not only an air supply fan and an exhaust fan, but also a ventilation promotion fan using a duct with a small diameter. This is a small-diameter duct, for example, is installed in the ceiling, and a nozzle communicating with the duct internal passage is installed in this duct at an appropriate interval.
Air from a ventilation promotion fan is allowed to flow through the duct, and a jet flow is discharged from the nozzle, for example, forced convection is formed in the target chamber to promote ventilation. (3) A method of promoting ventilation by installing many small axial fans.

[0003]

However, in the method (1) for constructing a large air supply duct and an exhaust duct, a large size air supply / exhaust duct is required for the ceiling and the wall surface. Particularly in the case of ventilation for an underground parking lot, since the ventilation air volume is large, the low ceiling surface is occupied by such a large air supply / exhaust duct, which hinders the arrangement of other equipment such as lighting and sprinkler equipment. In addition, it is difficult to construct the duct piping where it must cross the beam. Further, in the method (2) of providing the ventilation promoting fan using the small-diameter duct, the construction is easier and the beam penetration is easier than the case (1), but the duct is constructed. It still remains. Further, in the method of installing a large number of small-sized axial fans of the above (3), duct construction is not necessary, but in order to eliminate the stagnation of air in the target room and the destination, to form an air flow, Since a large number of fans are required and the airflow direction is the same as that of the axial fan itself, when forming a predetermined airflow, the freedom of layout when other devices are already installed is limited. Sometimes Moreover, since the fan mounting direction is not constant in the hall, it is not orderly and aesthetically unpleasant.

The present invention has been made in view of such a point, does not require the construction of a duct, and can freely change the jetting direction of a jet flow, and one unit can be used not only in one direction but also in many directions. It is an object of the present invention to solve the above problem by providing a blower unit in which blowing in any direction is possible and the degree of freedom of installation layout is greatly improved.

[0005]

In order to achieve the above object, according to claim 1, a blower is built in a chamber having a sound absorbing material on its inner wall, a suction port is provided on the side surface of the chamber, and a nozzle is provided on the other side surface. A blower unit is characterized in that a hollow flexible support member that supports the above is provided, and gas such as air sucked from the suction port is configured to be discharged from the nozzle through the flexible support member by the blower. Provided.

According to another aspect of the present invention, there is provided the blower unit.
It may be configured such that two or more of the flexible supports are provided as described in 1., and as described in claim 3, the flexible supports are provided on a side plate forming a side surface, Further, the side plate itself may be configured to be detachably attached to the chamber.

[0007]

According to the first aspect, the air sucked from the suction port on the side surface of the chamber is discharged from the nozzle by the blower. Therefore, for example, by preparing a plurality of blower units according to the present invention and locating the suction port of another blower unit at the discharge destination of the jet, the air can be transferred one after another. Therefore, it is not necessary to construct a duct for supply / exhaust, and a duct with a small diameter for passing air for transportation is also unnecessary.

Further, since the jet flow attracts and conveys the surrounding air, it is not necessary to position the suction port of another blower unit at the discharge destination of the jet flow as described above, and the jet flow is directed toward the nozzle of the other unit. Even if you direct to discharge
It is possible to carry air one after another.

Moreover, since the nozzle is supported by the flexible support and the jet flow discharged from the nozzle can be directed in an arbitrary direction, the jet flow can be directed regardless of the direction of the chamber, and the blower unit can be neatly arranged. It is possible to form a desired air flow while being arranged.

If two or more flexible supports are provided as in claim 2, the jet can be discharged from one blower unit in two or more different directions.
An optimal air flow can be formed according to the situation, and the air blower units can be arranged in an orderly manner. Further, since a multi-direction air flow can be formed by one unit, it is possible to reduce the number of required units in comparison with the conventional case when forming the air flow by eliminating the stagnation of air in the destination.

Further, as described in claim 3, the side plate forming the side surface of the chamber is provided with the flexible support, and the side plate itself is detachably attached to the chamber. By this, it is easy to convert one unit one-way jet flow to one unit multi-direction jet flow unit, and by making the remaining part, for example, the chamber, the blower, and the suction port in common, the manufacturing cost is reduced as a whole. be able to. Moreover, if the airflow forming direction is changed after the installation once by changing the environment in the target room or the place, in addition to changing the orientation of the flexible support,
It is possible to install a multi-directional jet unit by replacing the side plate portion.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a so-called single-nozzle type blower unit 1 according to the first embodiment, FIG. 2 is a side view, FIG. 4 shows the front, and FIG. 5 shows the appearance, respectively. The chamber 2 of the blower unit 1 has a box-like shape having a substantially square plane as a whole, and the side surfaces thereof are the left side plate 3, the right side plate 4, and the front side. It is formed by the side plate 5 and the rear plate 6.
A centrifugal blower 7 is provided in the chamber 2. Also, supporting metal fittings 3a, 4a for hanging are provided on the upper edge of the left side plate 3 and the right side plate 4, respectively.
A terminal box 4b accommodating a terminal or the like for instructing the blower 7 to start or stop, or for supplying electric power for operation is provided at an appropriate position. As shown in FIG. 3, the rear side plate 6 is configured by a lattice mesh and forms an air suction port. The rear side plate 6 is not limited to such a lattice shape, but other shapes such as a slit shape and a punching shape can be selected according to the environment of the place of use.

An appropriate distance is provided between the discharge port 7a of the blower 7 and the inner surface of the front side plate 5, and the discharge port is defined by a partition plate 8 that divides the chamber 2 into front and rear with the discharge port 7a as a boundary. A dynamic pressure chamber S is formed between 7a and the inner surface of the front side plate 5. The inner wall of the chamber 2, that is, the inner surface of the left side plate 3, the right side plate 4, the front side plate 5, and further the inner surfaces of the partition plate 8, the top plate 9, and the bottom plate 10, are made of, for example, glass wool or glass cloth. Each of the materials 11 is provided, and the sound emitted by the blower 7 is generated by the sound absorbing material 1
It is absorbed by 1. At the center of the outer surface of the front side plate 5 that is detachably attached to the chamber 2, a flexible flexible support body 12 communicating with the dynamic pressure chamber S in the chamber 2 and having a flexibility is formed by a flexible duct, for example. Is provided, and a tapered nozzle 13 is provided at the tip of the flexible support 12.

The blower unit 1 according to the first embodiment has the above-mentioned structure. When the blower 7 is operated, ambient air is sucked from the rear side plate 6 and the discharge port 7 of the blower 7 is discharged.
It is ejected as a jet from the nozzle 13 through the dynamic pressure chamber S from a.

Next, the second embodiment will be described. As shown in FIGS. 6 and 7, the blower unit 21 according to the second embodiment is a so-called double nozzle type.
Only the configuration of the front side plate 5 portion of the blower unit 1 according to the first embodiment is changed. Therefore, FIG.
In FIG. 7, members referred to by the same numbers as the member numbers used in the description of the blower unit 1 according to the first embodiment have the same member configurations as the blower unit 1 according to the first embodiment. .

That is, the blower unit 21 according to the second embodiment.
In the above, the front side plate 22 detachably attached to the front surface of the chamber 2 has a diameter smaller than that of the flexible support 12 described above.
Two flexible supports 23 and 24 are provided, and nozzles 25 and 26 having a diameter smaller than that of the nozzle 13 are provided at the tips of the flexible supports 23 and 24. The flexible supports 23, 24 and the nozzles 25, 26 have the same diameter. Blower unit 21 according to the second embodiment
According to the above, when the blower in the chamber 2 is operated, a jet flow is discharged from these two nozzles 25 and 26.

Next, the third embodiment will be described. As shown in FIGS. 8 and 9, the blower unit 31 according to the second embodiment is a so-called triple nozzle type, which is the same as the second embodiment. Similar to the case, only the structure of the front side plate 5 in the blower unit 1 according to the first embodiment is changed. Therefore, in FIGS.
The members referred to by the same numbers as the member numbers used in the description of the blower unit 1 according to the embodiment have the same member configurations as those of the blower unit 1 according to the first embodiment.

Blower unit 31 according to the third embodiment
In the above, in the front side plate 32 detachably attached to the front surface of the chamber 2, the flexible supports 23, 24 of the second embodiment described above are attached.
Three flexible supports 33, 34, each having a smaller diameter than
No. 35 is provided, and nozzles 36, 37, 38 having a diameter smaller than that of the above-mentioned nozzles 25, 26 are provided at each tip of each of the flexible supports 33, 34, 35. The flexible supports 33, 34, 35 and the nozzles 36, 37,
38 have the same diameter. According to the blower unit 31 according to the third embodiment, when the blower in the chamber 2 is operated, the jets are ejected from the three nozzles 36, 37 and 38, respectively.

The blower units 1, 21, 31 according to the first, second, and third embodiments of the present invention are configured as described above, and use the same chamber 2 and the same blower 7, respectively. Therefore, the nozzle 1 of each blower unit 1, 21, 31
The jet flow discharged from the nozzles 13 of the blower unit 1 according to the first embodiment has the longest reach of the jet flows discharged from the blower units 3, 25, and 36.
First, the blower unit 31 according to the third embodiment is shortened in this order.

Next, the ventilation system using each of these embodiments will be described, for example, in the case of ventilating the underground parking lot X having a plane configuration as shown in FIG. This underground parking lot X has a vehicle entrance / exit zone 41 on one side thereof.
There are air supply fans 4 on both sides of the entrance / exit zone 41.
2. An exhaust fan 43 is installed. Further, the parking area P of the vehicle A is formed by appropriate lane markings 44 and 45, and in the example of FIG. 10, along parking areas P ₁ and P ₂ provided facing each other and a wall facing the entrance / exit zone 41. _Three parking areas including the provided parking area P ₃ are formed.

When the underground parking lot X having such a structure is ventilated, the air from the air supply fan 42 can be efficiently supplied to the vicinity of the ends of the parking areas P ₁ , P ₂ , P ₃ without stagnation. Although it is necessary to let the air flow through and finally guide it to the exhaust fan 43, according to the present invention, the blower units 1, 21, 3 according to the first, second, and third embodiments described above.
It is possible to meet such a demand extremely easily and with a minimum required number of units by appropriately combining and using 1.

[0022] That is, the zone between the supply air first parking area P _1, P _2, while transporting to the end of the P _3, and the parking area P _1, P _2, P ₃ from the air supply fan 42 According to the present invention, the blower unit 21 according to the second embodiment is first installed in the air supply direction of the air supply fan 42 according to the present invention. Then, the nozzles 25 and 26 of the blower unit 21 respectively have the flexible support 2 as described above.
Nozzle 25 because it is instructed by 3 and 24
Can be arranged in a straight line, and the other nozzle 26 can be directed to the zone between the parking areas P ₁ and P ₂ .
Therefore, one unit can guide the air supply from the air supply fan 42 to the zone between the parking areas P ₁ and P ₂ and the parking area P _{3 in the} deepest position.

The air supply thus guided is then stirred along the respective ends of the parking areas P ₁ , P ₂ , P ₃ while stirring the exhaust gas of each vehicle and at the same time the underground parking lot X.
In this system, the parking area P ₁ and the entrance / exit zone 41 are conveyed at right angles to the side wall X _1.
2 and the blower unit 21 according to the second embodiment.
It is installed at one place, and one nozzle 25 is directed to the end of the vehicle, that is, the parking area P ₁ side, and the other nozzle 26 is directed straight to one side wall X ₁ of the underground parking lot X. In that case, the nozzle 26 can be not only horizontally directed to the parking area P ₁ side, but can also be provided with an appropriate depression angle as shown in FIG. 11. As a result, the exhaust gas of the vehicle can be stirred efficiently and without stagnation.

Between the parking areas P ₂ and P ₃ ,
The blower unit 31 according to the third embodiment is installed at three places. The blower unit 31 installed between the parking areas P ₂ and P ₃ has three nozzles 36, 37, 3
Since they have 8, for conveying the central nozzle 37, it is possible to direct the sides of the nozzles 36, 38 with a depression angle to each parking area P _2, P _3, each of these parking area P ₂ , P ₃ of the vehicle exhaust gas can be prevented from settling. The situation is shown in FIG.

The blower unit 1 according to the first embodiment, which has the longest reach of the jet flow, is installed at the corner of the side wall X ₁ of the underground parking lot X facing the exhaust fan 43. That is, the unit installed on the one side wall X ₁ only needs to convey the exhaust gas toward the exhaust fan 43, and therefore, only one blower unit 1 having the longest reach is installed.

In the ventilation system for the underground parking lot X as described above, the number of units to be installed in the hall is smaller than the conventional one, and it is possible to efficiently carry air and eliminate stagnation near the vehicle. There is. In this respect, for example, in the conventional method using a small axial fan, it is necessary to separately install each for transporting and stirring, and when the required number increases, and when the depression angle is set or the horizontal direction is appropriately changed, , Its arrangement direction had to be cluttered. However, according to the present invention, it is possible to obtain jet flows in multiple directions with one unit, so that the required number of installations is small, and the angle of the horizontal direction and the depression angle can be freely set by the flexible support. is there. Therefore, as shown in FIG. 10, the arrangement of the units is neat.

Furthermore, the unit itself uses the same chamber 2 and the same blower 7 as they are, and the front side plates 5, 22,
Since the blower units 1, 21, and 31 can be easily changed by changing 32, mass productivity is excellent and manufacturing cost can be kept low. Of course, there is no noise and there is no need to install ducts.

Although the above-mentioned embodiment is an example applied to ventilation of an underground parking lot, it can of course be used as it is for improvement of heating having a high ceiling, and even in that case, the orderly arrangement as described above is required. Since it is possible, it can be installed in a space requiring consideration for interior decoration and design, such as a hotel lobby, without disturbing them.

[0029]

According to the first aspect of the present invention, it is not necessary to construct a duct for air supply and exhaust, and a duct having a small diameter for passing air for transportation is also unnecessary. Moreover, since the jet flow discharged from the nozzle can be directed in an arbitrary direction, an air flow can be formed regardless of the arrangement direction of the units, and a desired air flow can be formed while the air blow units are arranged in an orderly manner. It is possible. It also has quietness. According to the second aspect, the jet flow can be discharged from one blower unit in two or more different directions, and the optimum air flow can be formed according to the target room and the place. According to claim 3,
The manufacturing cost can be reduced as a whole, and when changing from a one-unit one-way jet flow to a one-unit multi-direction jet flow unit, the multi-directional jet flow unit can be changed by replacing the side plate portion without changing the unit itself. It can be installed.

[Brief description of drawings]

FIG. 1 is a plan view of a blower unit according to a first embodiment.

FIG. 2 is a side view of the blower unit according to the first embodiment.

FIG. 3 is a rear view of the blower unit according to the first embodiment.

FIG. 4 is a front view of the blower unit according to the first embodiment.

FIG. 5 is a perspective view of the blower unit according to the first embodiment.

FIG. 6 is a front view of a blower unit according to a second embodiment.

FIG. 7 is a perspective view of an air blowing unit according to a second embodiment.

FIG. 8 is a front view of a blower unit according to a third embodiment.

FIG. 9 is a perspective view of a blower unit according to a third embodiment.

FIG. 10 is an explanatory plan view of a ventilation system for an underground parking lot using the embodiment.

FIG. 11 is a side view of the ventilation system for the underground parking lot using the embodiment.

FIG. 12 is a perspective view of a ventilation system showing a state of an underground parking lot using the embodiment.

[Explanation of symbols]

 1, 21, 31 Blower unit 2 Chamber 5 Front side plate 6 Rear side plate 7 Blower 11 Sound absorbing material 12 Flexible support 13 Nozzle

Claims (3)

[Claims] 1. A hollow flexible housing, in which a blower for generating a jet flow is built in a chamber having a sound absorbing material provided on an inner wall thereof, a suction port is provided on one side surface of the chamber, and a nozzle is supported on the other side surface. A blower unit, characterized in that a support is provided and the gas sucked from the suction port is discharged from the nozzle through the flexible support by a blower. 2. The blower unit according to claim 1, wherein two or more flexible supports are provided. 3. The blower unit according to claim 1, wherein the flexible support member is provided on a side plate forming a side surface, and the side plate is detachably provided to the chamber. .