JPH09292136A - Ductless blast system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blast system which can be easily installed and air can be efficiently circulated and agitated within a building having a large floor area at a low running cost. SOLUTION: A plurality of blast sections 1 (10) are provided in a building and each section is defined by four boundary surfaces 2-5, i.e., floor surface, ceiling surface, and side surfaces, and at least one through blower 6 (6b) is installed in the section, and a boundary plane 3 present in the blast direction of the blower has an opening at least partially formed in the plane 3. And blast sections 1 (10) are formed so that an air stream produced in the section 1 arrives into the section 10 adjacent to the plane 3 having an opening in the blast direction of the through blower 6 of the section 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower system suitable for a building having a large floor area such as a factory, hall, warehouse, underground parking lot, etc., and an external device (external air intake device) installed in the building. , Forced exhaust device, air conditioner, etc.) to convey and agitate air from the outside air intake device or the opening where it is easy to take in outside air to the forced exhaust device, and the air conditioner generated from the air conditioner is used. The present invention relates to a ductless blower system that efficiently conveys air and agitates air inside a building without using a duct.

[0002]

2. Description of the Related Art As a conventional air blowing system used in combination with an outside air intake device, a forced exhaust device, or an air conditioner for the above-mentioned purpose, a duct is installed in a required portion of a ceiling portion inside a building and the duct is passed through the duct. Those that convey airflow, those that generate high-speed air jets by combining ducts and nozzles with axial flow type blowers placed in the required parts of the ceiling inside the building (Japanese Patent Publication No. 63-33053), and inside the building A plurality of axial-flow type blowers whose downward angle can be adjusted are installed at required parts of the ceiling (Japanese Patent Laid-Open No. 60-169).
No. 022), or one in which an airflow generator having a casing having a length substantially the same as the distance between the side walls is disposed between the left and right side walls inside the building (Actual No. 4-125141).

[0003]

However, there are the following problems in using the above-mentioned system inside a building having a large floor area. That is, in the system of (1), the length of the duct becomes long, and the air loss inside the duct becomes large, so it is necessary to make the duct diameter and the blower large to obtain a large amount of air, the running cost is high, and many spaces have ducts. There is a problem such as being occupied by. There is also a problem that it takes time to install a long duct inside the building.

In the system of (1), it is necessary to increase the size of the blower to increase the amount of blown air because of the loss of blown air inside the duct.
There is a problem that the running cost is high. In addition, since the strength of the air flow is generated depending on the distance from the blower to the nozzle, and the air is blown in spots, it is easy to cause uneven air flow due to the entrainment of the air flows, and it is difficult to maintain the balance of the air flows, resulting in poor efficiency. There are also problems. Moreover, the duct,
Since the number of parts such as nozzles increases, there is also a problem that the equipment cost is high.

Since the system of (1) uses an axial flow type blower, the air flow becomes a spot flow, so that uneven blowing is likely to occur.
In order to air-condition the entire interior of the building on average, it is necessary to install a large number of axial blowers, which causes a problem of increasing equipment costs and running costs.

In this system, since the casing of the air flow generator has a length approximately equal to the distance between the left and right side walls, the air flow can be made smooth even when there is a large obstacle such as a vehicle such as in a parking lot. Since it can be flowed, it is efficient, but since the casing has a length approximately equal to the distance between the left and right side walls as described above, there is a problem that installation is difficult and the place where installation is possible is limited. There is also the problem of high equipment costs.

Therefore, in view of the above-mentioned problems, the present invention is easy to install, and can efficiently carry and stir air inside a building having a large floor area, and the blowing cost is low at a running cost. The purpose is to provide a system.

[0008]

Means for Solving the Problem and Its Action / Effect The ductless blower system of the present invention comprises a plurality of cross flow fans (also referred to as cross flow blowers) from one or a plurality of the cross flow blowers. The airflow is arranged in the building so as to reach the other one or a plurality of the above-mentioned crossflow fans located in front of or to the side of the crossflow fan or in the same direction as each other, or the airflow from the crossflow fans. It has a feature.

In such a ductless blower system, in the building, the airflow from one or a plurality of the above-mentioned crossflow blowers, which blows in the same direction, is located in front of or in the side of the crossflow blower. Alternatively, the plurality of cross-flow blowers that blow in the same direction as each other or the airflow from the plurality of cross-flow blowers arrives. In addition, this ductless ventilation system
It consists only of arranging multiple once-through fans in the building. Therefore, according to this ductless blower system, the blower system can be easily installed, and it is possible to efficiently carry and stir the air inside the building with a large floor area, thereby reducing the running cost. can do.

From a different point of view, the ductless blower system of the present invention is defined by a floor surface and a ceiling surface and four side boundary surfaces, and at least one cross flow fan is installed therein. In addition, a plurality of air-blowing sections in which the boundary surface in the air-blowing direction of the cross-flow fan is at least partially open are provided in the building, and the airflow generated in one of the air-blowing sections is the cross-flow fan of the air-blowing section. The blast section is set so as to reach the other blast section adjacent to the open boundary surface in the blast direction.

According to such a ductless ventilation system,
An air flow from one of the blower compartments or a plurality of the cross-flow blowers that blows in the same direction as each other, is placed in front of or in the other of the blower compartments adjacent to the blower compartment. It is possible to reach one or a plurality of said once-through blowers which blow in the same direction as each other or the air flow therefrom. Further, this ductless blower system is configured simply by arranging a plurality of once-through blowers in the building.
Therefore, according to this ductless blower system, the blower system can be easily installed, and it is possible to efficiently carry and stir the air inside the building with a large floor area, thereby reducing the running cost. can do.

In the present invention, it is preferable that the range of the air flow reaching the blower compartment is 5% or more of the arrival length of the air flow from the once-through blower. According to such a configuration, since the airflow is easily attracted, one or a plurality of the airflows from the above-mentioned crossflow blowers that blow in the same direction as each other, one or the other located in front of or in the side of the crossflow blower. It can be reliably reached by the plurality of through-flow blowers that blow in the same direction.

Further, in the present invention, preferably,
Installed in one of the blower compartments, the length in the width direction of the airflow outlets of one of the once-through fans, or the total length of the airflow outlets of the plurality of once-through fans in the same direction. Is not less than 15% and not more than 75% of the width of the blower section in the width direction. If the length in the width direction of the air flow outlet of the once-through blower is set to be 15% or more of the length in the width direction of the blower section, it is possible to effectively prevent the occurrence of blower unevenness in the width direction, and 75% or less. Then, the once-through blower can be easily installed in the blower section.

Further, in the present invention, it is preferable that the plurality of air-blowing sections sequentially convey the air flow from the outside air intake device of the parking lot and / or the opening portion where the outside air is easily taken in to the forced exhaust device of the parking lot. As described above, the vehicle is arranged on the road and the passenger compartment of the parking lot. With this configuration, it is possible to efficiently ventilate and agitate the air in the parking lot as a building without using the duct.

On the other hand, in the present invention, preferably, the plurality of air-blowing sections are arranged in the building so that the conditioned air generated from the air-conditioning system of the building is sequentially conveyed in the building. With this configuration, it is possible to efficiently perform air conditioning in the building without using the duct.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
This will be described in detail with reference to the drawings. In the ductless blower system of the present invention, depending on the purpose of ventilation such as ventilation or air conditioning, or ventilation and air conditioning, for example, the outside air intake device, the forced exhaust device, the installation position of the external device such as the air conditioner is taken into consideration. A plurality of once-through fans are installed in such a manner that the air is agitated at the same time as the air is transferred from the device or the opening where it is easy to take in the outside air or from the air conditioner, and the air is efficiently blown inside the building.

That is, in the ductless blower system of the present invention, the airflow from a plurality of once-through blowers that blow a plurality of once-through blowers in the same direction as each other or one of the plurality of once-through blowers located in front of or at the side of the once-through blower. It is arranged so as to reach one or a plurality of once-through blowers that blow air in the same direction. Therefore, in the present invention, the blower section is appropriately set according to the internal structure of the building so that the above-mentioned effects can be effectively obtained for the plurality of once-through blowers.

The blower section in the ductless blower system of the present invention is a section of a fixed area consisting of a floor surface and a ceiling surface, and four boundary surfaces on the sides that geometrically divide the space sandwiched between the floor surface and the ceiling surface. (Space) is defined, at least one of the cross flow fans is installed inside the compartment, and at least a boundary surface in the blowing direction of the cross flow fan is opened at least partially, preferably most of the boundary surface. To do. In the present invention, for convenience, when viewed in a plan view,
The direction parallel to the longitudinal direction of the once-through blower, which is the direction of the rotation axis of the impeller of the once-through blower, is the width direction of the blower compartment, and the direction parallel to the blowing direction of the once-through blower is the longitudinal direction of the blower compartment.

FIG. 1 is a plan view showing an embodiment of an air blowing section according to the present invention, and FIG. 2 is a vertical sectional view of the air blowing section shown in FIG. As shown in FIG. 1 and FIG. 2, the blower section 1 here is a section (space) of a certain area defined by a floor surface 8 and a ceiling surface 9 and four boundary surfaces 2 to 5 on the sides. A through-flow blower 6 that generates an air flow in a specific range is installed and configured inside. In the blower section 1 of this embodiment, the boundary surface 3 is open except for the upper beam portion, and is an open boundary surface in the blowing direction of the cross-flow blower. 4 is a wall surface that is completely closed. The remaining boundary surface 5 may or may not be open, as described later.

The size of the blower section 1 is appropriately set with respect to the width W0 of the blower section 1 in the width direction mainly on the basis of the part partitioned by the wall or the column. In addition, when there is no partition such as a wall or a pillar, it may be divided at any position.

The length L0 in the vertical direction of the blower section 1 is set according to the arrival length AL1 of the airflow 7 generated from the once-through blower 6 to be installed. The arrival length AL1 of the airflow 7 is determined by the blowing capacity of the once-through blower 6, the blowing angle θ1 of the airflow 7, the floor height H0 of the building, and the like. Contrary to this, the vertical length L0 of the blower section 1 is determined first, and the L
The blower capacity of the once-through blower 6 may be set according to 0.

Further, according to the present invention, in order to efficiently blow the air, the air is generated from the blower section 1 in the building except for a part of the position in contact with an external device such as an outside air intake device, a forced exhaust device, and an air conditioner. The blower section is set so that the generated airflow reaches the blower section 10 adjacent to the boundary surface 3 that is open in the blower direction. FIG. 3 and FIG. 4 are simplified diagrams each illustrating the reach of the airflow in the blower section 1 in the above embodiment.

FIG. 3 shows a case in which the blowing direction of the cross-flow blower 6b of the blower section 10 is orthogonal to the blowing direction of the cross-flow blower 6 of the blower section 1. In this case, the blower section 1
The range of the airflow 7 is the airflow 7 of the once-through blower 6 of the air blower section 1.
The airflow 7 of the blast section 1 reaches the inside of the blast section 10 so that the airflow of the blast section 1 is easily attracted to the airflow of the blast section 10 adjacent to the boundary surface 3 opened in the blast direction.
In addition, the arrival length of the airflow 7 from the once-through blower 6 is 5 of AL1.
It is preferable that the range AL2 of the air flow of not less than 5% interferes with the air blowing section 10 because the air flow 7 is more easily attracted.

FIG. 4 shows a case in which the blowing direction of the cross-flow blower 6 in the blowing section 1 and the blowing direction of the cross-flow blower 6b in the blowing section 10 are the same. In this case, the air flow 7 in the blowing section 1 is The range is such that the air flow 7 of the blower compartment 1 is easily attracted by the air flow 7 of the once-through blower 6 of the blower compartment 1 and is easily conveyed sequentially.
Try to reach b. In addition, it is preferable that the range AL2 of the airflow of 5% or more of the arrival length AL1 of the airflow 7 from the once-through blower 6 interfere with the airflow of the once-through blower 6b because the airflow 7 is more likely to be sequentially transported.

Next, the once-through blower used in the ductless blower system of the present invention will be described. The cross-flow blower used in the ductless blower system of the present invention is not particularly limited in type, but can blow air in a wide range in the width direction of the blower section of the present invention, and is lightweight and thin, but has a high blowing efficiency. It is preferable from the standpoint of mounting property.

FIG. 5 shows an embodiment of the once-through blower used in the ductless blower system of the present invention. The once-through blower 101 shown in the figure is a drive unit 10 which constitutes the blower.
3, main components such as the impeller 104, the control device 105, etc. are integrally incorporated in the aluminum extrusion-molded casing 102. The casing 102 is provided with an air suction port 106, an air flow outlet 107 and a mounting groove, and the cross flow fan 101 is mounted on the ceiling surface 9 or the wall surface by a mounting bracket or the like fitted in the mounting groove. You can The once-through blower 10
1, the blow guides 108 and 109 can be attached to the attachment grooves as required, so that the airflow blowing direction can be arbitrarily changed. Furthermore, a plurality of cross-flow fans 101 can be connected in the longitudinal direction, and the connection is
This can be easily performed by joining the casings 102 with the cover at the longitudinal end of the casing 102 removed, and joining the impellers 104 with each other as necessary.

As described above, the once-through blower 101 is lightweight, and since the air flow outlet 107 is long in the width direction of the blower section, it can blow air substantially uniformly over a wide range in the width direction, and it can be driven. Even if the device 103 has low power consumption, a large amount of air can be blown, so that running cost can be reduced.
Moreover, since the main components are integrated in the casing 102 and the use of the impeller 104 reduces the cross-sectional area in the direction perpendicular to the width direction,
It is suitable for the ductless blower system of the present invention because it has a high degree of freedom in mounting, can be freely installed on a ceiling surface, a wall surface, and the like, and can greatly facilitate mounting work.

Next, the airflow generated in the blowing section in the present invention will be described. In the ductless blower system of the present invention, from the viewpoint of suppressing blower unevenness and improving blower efficiency, the airflow is generated from the airflow outlet of the once-through blower at a time in a wide range within the blower compartment, and the airflow is the width of the blower compartment. In a blast section where there is no obstruction to the airflow, the airflow is blown to a wide area in the blast section to prevent the air from stagnation. In an air-blowing section that has an obstacle to the airflow, the airflow should be blown to a wall or a gap between the object and the airflow so that the airflow is not blocked thereby.

Therefore, in the present invention, the width W1 of the air flow outlet of one through-flow blower installed in the blower compartment (see FIG. 1).
Alternatively, the total width W1 of the airflow outlets of a plurality of once-through blowers that blow air in the same direction is equal to 1 of the width W0 of the blower section.
The once-through blower is installed so that the length is 5% or more and 75% or less. If the length of W1 is less than 15%, it is not preferable because unevenness in air blowing in the width direction of the air blowing section is likely to occur.
Further, if it exceeds 75%, the total length of the cross-flow blower becomes long and it becomes difficult to install it in the blower section. further,
By setting the length of W1 within the range of 20% or more and 50% or less of W0, it is possible to secure a sufficient amount of air to stir and replace the air in the air blowing section, and at the same time reduce the equipment cost. Also, the installation can be facilitated.

In the present invention, the length of W1 is first set on the basis of the width W0 of the blower compartment, assuming that there is no obstacle to the air flow in the blower compartment. Change as appropriate. The number of once-through blowers installed in the blower compartment may be one or more, and can be appropriately selected depending on the width W0 of the blower compartment, the presence or absence of obstacles, etc. to blow air in a wide range in the width direction to prevent unevenness in air blow. By suppressing the air flow, it is possible to efficiently agitate the air in the air blowing section, exchange the air, and carry the air.

Next, the mounting position of the once-through blower installed in the blower compartment in the present invention will be described. Regarding the mounting position in the width direction of the blower compartment, if there is no obstruction to the airflow in the blower compartment, align the widthwise center of the airflow blowout part of the once-through blower with the widthwise center of the blower compartment. It is preferable to install it in such a way that the generated airflow can be made to flow substantially uniformly and evenly. If there is an obstacle, the airflow may be appropriately shifted to the left or right or may be dispersed in the same direction.

Next, the mounting position of the once-through blower in the width direction of the blower compartment when there is an obstacle to the air flow in the blower compartment will be specifically described. For example, a parking lot is taken as an example of a building having an obstacle that obstructs airflow. FIG.
It is a top view which illustrates the state which parked vehicles C1 and C2 in ventilation section 1 shown in Drawing 1, and Drawing 7 is a longitudinal section of ventilation section 1 shown in Drawing 6. As shown in FIG. 6, when the gap between the two vehicles C1 and C2 is at the approximate center in the width direction of the blower compartment 1, the airflow 7 can be blown into the gap, so that the cross flow blower 6 The cross-flow blower 6 with the widthwise center of the airflow blowing portion aligned with the widthwise center of the blower section 1
Is preferably installed.

FIG. 8 shows a blowing section 11 having three vehicles parked in the width direction. In this case, three vehicles C
Since there are two gaps between C3, C4, and C5, it is possible to install the two cross-flow blowers in the same direction so as to be separated from each other, but from the economical point of view, even if one cross-flow blower is installed,
Since the width of the airflow outlet of the once-through blower installed in the air blower section 11 has a length of 15% or more and 75% or less of the width W0 of the section as described above, blow the airflow to the two gaps. You can When one such cross-flow blower is installed, the center of the air flow outlet of the cross-flow blower 16 in the width direction is aligned with the center of the cross-flow blower 11 in the width direction of the cross-flow blower 16.
Is preferably installed.

FIG. 9 shows a blower section 21 having four vertically parked vehicles. In this case, if the airflow is blown into the gaps between the boundary surface 23 formed by the wall surfaces and the vehicles C6, C7, C8, C9, the air can be efficiently blown in the blower section 21. The cross-flow blower 26 is installed by moving the mounting position of 1 to the boundary surface 23 side.

As described above, as for the mounting position in the width direction of the cross-flow fan, if there is an object that obstructs the air flow in the blower compartment, the obstruction is not obstructed by the obstructive object, and the blower compartment is efficiently installed in the blower compartment. The position where the air can be blown is appropriately selected.

On the other hand, regarding the installation position of the once-through blower installed in the blower compartment in the present invention in the vertical direction of the blower compartment, the efficiency of air conveyance and agitation and the air blower compartment adjacent to the open boundary surface are determined. It is appropriately selected in consideration of the reach of the air flow. For example, in the blower section 1 shown in FIG. 1, when the boundary surface 5 on the opposite side to the blowing direction is formed by a wall surface that is completely closed, the crossflow blower 6 is attached to the wall surface forming the boundary surface 5. Therefore, it is preferable that the airflow is blown in a long range in the vertical direction of the blowing section. Further, when the boundary surface 5 is partially or entirely opened, the once-through blower 6 is installed at a position where it is easy to take in outside air, air-conditioned air, or air blown from an adjacent blower section from the opening. It is preferable that the air can be efficiently transported.

In the present invention, the mounting height H1 (see FIG. 1) of the once-through blower installed in the blower compartment is usually set to the height above the inside of the building from the viewpoint of air transfer and stirring efficiency. The mounting height may be lowered according to the purpose of blowing and the shape of the blowing section. For example, when a cross-flow fan is installed at a height corresponding to an intermediate position between upper and lower two-tier vehicles that obstruct airflow, as in a two-tiered parking lot, when the efficiency of air conveyance and agitation improves, A once-through blower will be installed at a height equivalent to the middle position of the vehicle.

The wind speed in the blower compartment according to the present invention is appropriately set according to the purpose of blowing and the setting position of the blower compartment.
For example, when mainly performing air conditioning, the average wind speed in the air blowing section is set to about 0.2 m to 1.0 m so as to maintain a comfortable feeling. When mainly performing ventilation, the average wind speed in the blower compartment is set to about 0.2 m to 1.5 m so as to increase the number of times the air inside the blower compartment is replaced. In addition, the wind speed can be increased by increasing the flow velocity of the airflow in the airflow section where there is little obstruction to the airflow, such as in the airflow section set in a passage or a road, so that the airflow can be continuously flowed. It can be appropriately set according to the form of the inside of the building, such as facilitating the intake of the airflow from the blower compartment.

The blow-off angle θ of the once-through fan according to the present invention
1 (see FIG. 1) is set so that air can be stirred and conveyed simultaneously and efficiently in the air blowing section. Therefore, in the present invention, the blowout angle θ1 of the once-through blower is set obliquely downward, and the center line of the airflow to be blown is within an angle range of 0 ° to 90 ° downward with respect to the horizontal direction, preferably 5 ° downward.
It is set to be within the angle range of 60 °. This 5 ° ~
This is because it is difficult to stir and convey air simultaneously and efficiently outside the angle range of 60 °.

The blow-off angle θ1 of the cross-flow fan is appropriately selected according to the mounting height H1 of the cross-flow fan. For example, when H1 is 3.0 m, it is preferable to set the blowout angle θ1 to an angle of 10 ° to 30 ° downward in terms of the effect of gas conveyance and stirring and the number of once-through blowers to be installed.

The blowout angle θ1 of the cross-flow fan can be adjusted by adjusting the installation angle of the cross-flow fan itself or the installation angle of the blow guide, or a combination thereof. The angle of the cross-flow fan itself and the blow guide may be variable by a driving device having a motor or the like so that the blowing angle can be changed at any time when switching between cooling and heating.

Next, the flow of air in the building in which the ductless blower system of the present invention is installed will be described. FIG.
As one embodiment when installing the ductless air blowing system of the present invention in a building, a state in which a plurality of air blowing sections of the present invention are installed in a parking lot for ventilation of air in the parking lot It is shown in the figure. The ventilation system provided in the parking lot 41 shown in FIG. 10 includes an outside air intake device 43, a forced exhaust device 44, and blower sections 45 to 47, blower sections 48 to 49, and a blower section 50 that are set in the respective roadways. , Blower sections 51 to 59, blower sections 60 to 68, and blower section 69 set in the vehicle compartments, respectively, and here, blower sections 45 to 4 set in the vehicle paths, respectively.
7. Blower compartments 48 to 49 and blast compartment 50, and blast compartments 51 to 59 and blast compartments 60 to 68 set in the passenger compartments, respectively.
The air blowing section 69 constitutes the ductless air blowing system of the present invention. The blower section 68 is set so as to include not only the passenger compartment but also the roadway within the area, and the airflow from there reaches the blower section 50.

In this ventilation system, the airflows generated in the air-blowing sections 45 to 47, the air-blowing sections 48 to 49 and the air-blowing section 50 set in the road, and the air-blowing section 68 set in the passenger compartment and including the road. It is preferable to increase the flow velocity so as to easily attract the airflow discharged from the air blowing sections 51 to 59, the air blowing sections 60 to 67, and the air blowing section 69 set in the vehicle compartment.

Explaining the flow of the air flow in the parking lot 41 shown in FIG. 10, the vehicle entrance / exit 42 and the outside air intake device 4 will be described.
Outside air 70, 71 introduced into the parking lot 41 from 3 is blown to the forced exhaust device 44 side by the cross flow blowers of the blower sections 45, 48 set in the road.

The outside air 70 introduced into the range of the right half portion in FIG. 10 by the air blowing compartment 45 is conveyed by the air blowing compartments 45 to 47 set in the vehicle lane, and the air blowing compartments 51 to 51 set in the vehicle compartment. It is supplied in 59. The outside air supplied into each of the blower sections 51 to 59 is the same as each of the blower sections 51 to 5
After being agitated with air containing a large amount of exhaust gas in 9, it is discharged again to the road side. The discharged airflow is in the blower section 45-
It is attracted by the airflow of 47, is blown to the forced exhaust device 44 side, and is discharged to the outside by the forced exhaust device 44.

Similarly, the outside air 71 introduced into the range of the left half portion in FIG. 10 by the air blowing compartment 48 is conveyed by the air blowing compartments 48 and 49 set in the vehicle lane, and is also set in the vehicle compartment. It is supplied into 60 to 67, stirred, and discharged again to the road side. The airflow discharged to the roadside is attracted to the airflow in the airflow compartments 48, 49 to be set in the passenger compartment and is blown to the airflow compartment 68 side including the roadway.

The air flow blown to the air blowing section 68 side is attracted to the air blowing section 68 and the air blowing section 50 set to the road, and is blown to the air blowing section 47 side set to the road,
The air is sent to the forced exhaust device 44 side by the air blowing section 47 and is discharged to the outside by the forced exhaust device 44. The blower section 69 introduces air from the blower sections 68, 50 side and blows it to the forced exhaust device 44 side.

When a ventilation system is used for ventilation of a parking lot, the outside air introduced into the parking lot from the outside and the air containing a large amount of exhaust gas in the parking lot are efficiently ventilated and agitated, and at the same time, the air is efficiently discharged to the outside. Although it is required to discharge the air, in the ductless blower system of the present invention, as described above, the airflow generated in each blower section is blown substantially uniformly at a time in a wide range in the width direction, and the other blower section. Is delivered to and from. Therefore, according to the ductless blower system of the present invention, the air in the parking lot 41 can be efficiently stirred and blown for ventilation.

The ductless blower system of the present invention is not limited to the above-mentioned embodiment, and the blower section can be appropriately set and installed according to the form of the building, the position of the forced exhaust device, and the like. . In addition, by adding the ductless ventilation system of the present invention to the ventilation equipment of the existing parking lot,
The parking lot ventilation system can also be reconfigured.

FIG. 11 shows another embodiment in which the ductless air blow system of the present invention is installed in a building. In order to improve the efficiency of air conditioning (air conditioning), a plurality of air blow sections according to the present invention are combined. The state of being installed in a building 81 such as a hall or a factory is shown in a plan view. The air conditioning system shown in FIG. 10 includes air conditioners 82, 83, 84 and 85.
And the air blowing sections 86 to 93, and the air blowing sections 86 to 93 configure the ductless air blowing system of the present invention.

In the embodiment shown in FIG. 11, the blower sections 86 to 91 are set for the purpose of widening the blower sections in the building 81.
Each of the three cross flow fans in the same direction are provided separately from each other, and for the purpose of circulating the air flow in the building 81, the direction of the blower section and hence the direction of the cross flow blower there is set to the blower section 86. The two air blow sections 92 and 93 which are directed sideways with respect to 91 are set. The airflow generated in the air blowing sections 92 and 93 is the air blowing section 86.
It is preferable to slightly increase the flow velocity so as to easily attract the airflows of ~ 88 and the blowing sections 89-91. However, it is preferable that the velocity of the air flow in this case be high enough not to impair the feeling of comfort.

Explaining the flow of the airflow in the building 81 shown in FIG. 11, the conditioned air generated from the air conditioners 82 and 83 is blown by the once-through blower of the blower section 86 and sequentially passes through the blower sections 86 to 88. The air is conveyed to the blowing section 92. The air blowing section 92 sends air to the air blowing section 89 side. Similarly, the conditioned air generated from the air conditioners 84 and 85 is blown by the once-through blower of the blower section 89, and the blower sections 89 to 89-
The air is blown to the air blowing section 93 through 91 in order. The blower section 93 blows air to the side of the blower section 86. Therefore, the conditioned air generated in the air conditioners 82, 83 and the air conditioners 84, 85 circulates in the building 81 and is blown to a wide range.

When a ventilation system is used for the purpose of improving the efficiency of air conditioning in the building, the conditioned air generated from the air conditioner is efficiently agitated with the air in the building while being transferred to the entire building or a required part. However, in the ductless blower system of the present invention, as described above, the airflow generated in each blower section is blown substantially uniformly at a time in a wide range in the width direction, and is different from other blower sections. Is passed between. Therefore, according to the ductless blower system of the present invention, the air in the building 81 can be efficiently conveyed while stirring.

The ductless blower system of the present invention is not limited to the above-described embodiment, but may be, for example, adjacent to only one wall surface depending on the form of the building or the installation position of the air conditioner. If the air conditioner is installed, set the airflow section to blow air in one direction, and if the air conditioners are installed adjacent to two facing walls, set the airflow section to face the airflow. For example, it is possible to properly set and install the air blowing section so that the air can be efficiently blown. In addition, the ductless blower system of the present invention can be added to the existing air conditioning equipment to reconfigure the air conditioning system of the building.

Next, a control method for adding a blower control device to the ductless blower system of the present invention will be described. The additional blowing control device can be appropriately selected according to the purpose of blowing, such as a timer type. FIG. 12 shows an embodiment of a blower control device added to the ductless blower system of the present invention. The blower control device 201 shown in FIG. 12 can be used when finely controlling the inside of a building to blow air, and here, three cases of blower sections 211, 212, and 213 are shown. Blower control device 20
Reference numeral 1 includes a control panel 202 and sensors 221 to 223.

The sensors 221 to 223 are to be installed in each air blowing section or an appropriate air blowing section as a detection position, and in the illustrated example, the air blowing sections 211, 212 and 213.
It is installed in each. The control panel 202 includes a setting device 203 for setting environmental conditions in the building such as a pollutant gas concentration for ventilation purpose and a temperature for air conditioning, and sensors 221 to 22.
3 and a controller 205 that calculates a control value from the output values of the setter 203 and the detector 204 to control the air flow rate (the rotation speed of the impeller of the cross flow fan). . When the once-through blower itself and the blow guide thereof are of a variable angle type by the drive device, the controller 205 also controls the angles of the once-through blower itself and the blow guide.

The detector 204 includes sensors 221-223.
It receives a signal indicating the pollution concentration or temperature of the blower compartment from and outputs the environmental value. The controller 205 compares the environmental value with the set value, and based on the difference, sends a control signal to the once-through blower of each blower section, and each blower section 2
11, 112, 213 are individually controlled.

If such a blower control device is used in the ductless blower system of the present invention, the blower can be finely controlled for each blower section, so that the blower can be intensively blown in a specific blower section.
It is possible to finely control the state of air blowing inside the building, and therefore, it is possible to more efficiently blow air.

[0059]

EXAMPLES Next, the effects of the ductless blower system of the present invention will be specifically described by way of examples. Example 1 described below is one in which the ductless blower system of the present invention is installed in a building of a factory that uses only an air conditioner to measure the temperature change, and FIG. It is a top view which shows the inside of the said factory which installed the ductless ventilation system of invention. In the comparative example, air conditioning is performed using only the air conditioner, and the blower of the example is stopped for measurement.

The conditions of the installation location, equipment used, installation conditions, and temperature conditions are shown below. (1) Installation place-Floor area 1750 m ² (length 50 m x width 35 m) x height of 4.0 m from floor to ceiling (indicated by reference numeral 301 in FIG. 13)

(2) Equipment used Air conditioner / indoor unit RP-15HL3 type (manufactured by Hitachi, Ltd.)
4 units (indicated by reference numerals 311 to 314 in FIG. 13) -Outdoor unit RCR-15HL3 type (Hitachi Ltd.)
(Manufactured) 4 units (not shown in FIG. 13) -Air conditioning capacity-Heating up to 40,000 kcal / h (1 unit) x 4 units = 160,000 kcal / h-Cooling up to 31,500 kcal / h (1 unit) x 4 Stand = 126,000 kcal / h once-through blower LFSS-4 type (manufactured by Nisshinbo Industries, Inc.)
16 units (indicated by symbols F1 to F16 in FIG. 13) -Size (blower main body: length x width x length) = 160 mm x
160 mm x 2530 mm (1 unit) -Airflow outlet length 2210 mm (1 unit) -Blower capacity up to 28 m ³ / h (1 unit)

(3) Installation conditions Air conditioners (indoor units) are installed on the wall 302 side.
2 is installed, and air conditioners 313 and 314 are installed on the wall 304 side.
Is installed.

Table 1 shows the blowing characteristics of the once-through blower (LFSS-4 type) when the height from the floor of the building (factory) 301 to the center line of the air flow outlet of the once-through blower is 3.0 m. ing.

[Table 1]

The installation height of the cross flow fans F1 to F16 (from the floor surface to the position of the air flow outlet (center line)) was 3.0 m. The airflow blowing angle is 30 ° downward with respect to the horizontal direction.
(Fixed).

Table 2 shows the configuration of each blast section.

[Table 2]

In the building (factory) 301, a ventilation section 32
1 to 326 are set. Blower section 321 to 323
Indicates that the wall 304 side is the blowing direction. That is, in other words, the direction toward the wall 304 is the blowing direction.
The blower section 321 is set on the front surface of the air conditioner 311, and the blower section 322 is set on the front surface of the air conditioner 312. Once-through blower F from air conditioner 311 to blower section 321
The distance from 1 to F2 (up to the axial position of the impeller, the same applies hereinafter) is 3 m, and the distance from the air conditioner 312 to the cross flow fans F3 and F4 of the blower section 322 is 6 m.

The air blowing sections 324 to 326 have the wall 302 side as the air blowing direction. In other words, the wall 302
The direction of air flow is toward. And blast section 3
24 is set on the front surface of the air conditioner 313, and the blowing section 325 is set on the front surface of the air conditioner 314. Air conditioner 313
To the once-through fans F8 and F9 in the air-blowing section 324 are 3 m, and the distance from the air conditioner 314 to the once-through fans F10 and F11 in the air-blowing section 325 are 6 m. The once-through fans F15 and F16 are installed to assist in blowing.

[0068] The temperature conditions are the same in the examples and the comparative examples.

(5) Measurement Results For the measurement of the temperature change in the building, first, the air conditioner alone was operated to measure the comparative example, and after a certain period of time, the cross flow fan was operated to measure the example. The measurement position is the blast section 32
2 (15 m from the wall surface 302, 11 m from the wall surface 303) and a measurement point P1 at a substantially central portion in the building (25 m from the wall surface 302, distance from the wall surface 303).
5 m) and the measurement point P2. FIG. 14 shows the measurement result at the measurement point P1 during heating, and FIG. 15 shows the measurement result at the measurement point P2 during heating. 16 shows the measurement result at the measurement point P1 during cooling, and FIG. 17 shows the measurement result at the measurement point P2 during cooling. From these measurement results, it can be seen that the ductless air blowing system of the present invention brings about excellent air conveying and stirring effects.

In the second embodiment described below, the wind speed is measured in a parking lot in which the ductless air blowing system of the present invention is installed. FIG. 18 is a plan view of the parking lot in which the ductless air blowing system of the present invention is installed. It is a figure.

The conditions of installation location, equipment used, and installation conditions are shown below. (6) Installation place-Floor area 7920 m ² (length 90 m x width 88 m) x floor-to-ceiling height 4.5 m parking lot (indicated by reference numeral 401 in FIG. 18)

(7) Equipment used: once-through blower LFSS-4 type (manufactured by Nisshinbo Industries Inc.)
102 units (illustrated in a rod shape in FIG. 18, no reference numeral) ・ Size (blower body: length × width × length) is the same as that of the first embodiment

(9) Installation conditions The parking lot 401 has outside air intake ports 406, 4 on the wall surface 403 side.
07, 408 and 409 are provided, and a forced exhaust device 410 is installed on the wall surface 405 side. The air-blowing compartments provided in the roadway and the passenger compartment are set so as to convey the airflow from the outside air intake ports 406 to 409 side to the forced exhaust device 410 side.

The blower compartments are as follows: Blower compartment A on the road (wind speed of blow-through blower (outlet) 5.
0 m / s) 30 sections (positioned in the range A in FIG. 18) -Blower section B of the passenger compartment (wind speed of blow-through blower (air outlet) 3.
0 m / s) 18 compartments (positioned within the range B in FIG. 18) -Blower compartment C (wind velocity of blow-through blower (air outlet) 3.
0 m / s) 27 sections (positioned within the range C in FIG. 18). And the installation height of the once-through blower in the blower section (from the floor to the position of the outlet (center line)) is 3.0 m,
The blowing angle was set to 30 ° downward (fixed) with respect to the horizontal direction.

Table 3 shows the configuration of each blower section.

[Table 3]

(10) Measurement results For the measurement of wind speed, as shown in FIG. 18, the measurement points P11, P14, P15 and P18 are appropriately set in the air blowing section A of the road and the air blowing sections B and C of the vehicle compartment are set. The measurement points P12, P13, P16, and P17 were appropriately set to, and the measurement was performed at each position.

Table 4 shows the measurement results of the wind speed at each measurement point.

[Table 4]

From the measurement results, it is found that the ductless air blowing system of the present invention blows an air flow over a wide area in the parking lot by the air blowing sections provided on the roadway and the passenger compartment to bring about an excellent effect of conveying and stirring air. I understand.

[0079]

As described above, the present invention has the following excellent effects.

In the building, there is a cross-flow blower that blows an air flow from a wider range than that of the axial flow blower, and the air flow from one or a plurality of the above-mentioned cross-flow blowers blows in the same direction to the front or side of the cross-flow blower. One of the other ones located in one direction or a plurality of the above-mentioned cross-flow fans that blow in the same direction as each other, or a plurality of them are installed so as to reach the airflow from the cross-flow fans, so that even a building with a large floor area can efficiently blow air. You can In addition, multiple blower compartments are set in the building, and cross-flow fans are installed in these blower compartments,
As described above, the airflow generated in the blast compartment is blown in a wide range in the width direction and reaches the other blast compartment adjacent to the boundary surface that is open in the blast direction. Can be generated and blown.

If the length in the width direction of the airflow outlet of the once-through blower installed in the blower section is 15% or more and 75% or less of the length in the width direction of the blower section, the once-through blower is provided. Since the airflow is blown from the whole of this range, it is possible to blow the wide range in the width direction of the blower section substantially uniformly, so that it is possible to suppress the occurrence of blower unevenness and perform the blower and the stirring of the air more efficiently. .

If the range of the air flow reaching the other air blowing section is set to 15% or more of the arrival length of the air flow from the cross flow fan, the air can be more efficiently transported.

As described above, since it is possible to blow air in a building having a large floor area without using a long blower duct, the construction cost of the blower system can be reduced and the required width of the blower can be reduced. The space between the left and right side walls can be made shorter, and the number of fans to be installed can be reduced, so that the facility cost can be reduced.

Since the once-through blower is used, a sufficient amount of blown air can be generated by the power-saving drive unit, so that the running cost can be reduced.

The once-through blower installed in the blower compartment is shown in FIG.
If the once-through blower in which the main parts are integrated as in the example shown in (1), the total number of parts can be reduced, so that the equipment cost can be reduced.

If the length of the airflow outlet in the width direction is 15% or more and 75% or less of the length in the width direction of the blower section, the total length of the blower (width direction length) is shortened. Since it is possible to install the blower, the constituent parts of the blower can be installed at one time, and the installation on the ceiling or the like can be facilitated. Further, since the blower can be made light and thin, the attachment can be facilitated also in this respect.

Since it is only necessary to install a plurality of once-through fans in the building, it is easy to install the air blowing system, and therefore it is very easy to install it according to the form of the building and the purpose of air blowing.

Further, since the required width of the blower can be made shorter than the distance between the left and right side walls, the total length of the impeller of the blower can be shortened, so that the noise generated can be reduced.

When the air blow control is performed by the air blow control device, the air blow can be controlled for each air blow section, so that the air blow inside the building can be finely controlled, for example, by centrally blowing the air in a specific air blow section. Therefore, it is possible to blow air more efficiently.

Next, the effect according to the purpose of blowing will be described. First, a case of using the ductless ventilation system of the present invention for ventilation of a parking lot will be described. When a ventilation compartment is set in the vehicle compartment, it is possible to uniformly blow air to a wide range in the width direction of the vehicle compartment. It is possible to ventilate the vehicle interior regardless of the parking state of the vehicle. Further, since it is possible to uniformly blow air over a wide range in the width direction, it is possible to suppress the occurrence of stagnation and efficiently ventilate the air in the vehicle compartment containing exhaust gas to the outside of the vehicle compartment.

Further, when a ventilation section is set on the road, it is possible to efficiently blow air to a wide area in the width direction, so that the outside air taken into the parking lot can be efficiently conveyed along the road. In addition, the air discharged from the ventilation section of the vehicle compartment can also be efficiently transported.

Further, since the air is blown in a wide range in the width direction, it is easy to supply the outside air to the air blowing section of the vehicle interior, and at the same time,
It is possible to easily attract the air discharged from the ventilation section of the vehicle compartment. Therefore, it is possible to maintain the balance between the air flow in the air blowing compartment of the vehicle compartment and the air flow in the air blowing compartment of the vehicle path, and thus it is possible to efficiently ventilate the entire parking lot.

Since the cross-flow blower to be installed can have a small cross-sectional area in the direction perpendicular to the width direction, the blower can be housed between the ceiling surface and the lower surface of the beam of the ceiling portion, so that it can be installed in the parking lot building. The floor height can be lowered, and the construction cost of the building can be reduced. Further, since the blower can be housed between the ceiling surface and the lower surface of the beam of the ceiling portion, it is possible to improve the passability of a vehicle having a high vehicle height.

Since it is not necessary to arrange the duct for ventilation to the ceiling or the like, it is very easy to install the ventilation system even in a new or existing parking lot.

When used for the purpose of improving the efficiency of air conditioning in a large building such as a hall or a factory, the conditioned air generated by the air conditioner is agitated with the air in the building in a wide range in the width direction, and at the same time, the air is blown. Because the airflow between the compartments can be delivered and delivered in a long vertical range while passing the airflow,
Even a building with a large floor area can be efficiently air-conditioned.

Since the air can be blown over a wide range in the width direction of the air blower compartment, unlike the axial blower, the air flow does not become a spot wind and is not concentrated and hit, and comfortable air conditioning can be performed. Furthermore, since the air can be efficiently conditioned by blowing the air over a wide range, the operating time of the air conditioner can be shortened and the running cost can be reduced.

Further, since it is not necessary to arrange the ventilation pipe of the ventilation duct to the ceiling or the like, the installation of the ventilation system is very easy even in a new or existing building. Further, since the setting of the blower section is easy, it is possible to easily set the blower section so as to efficiently generate the blown airflow according to the form in the building and the installation position of the air conditioner.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a blower section in a ductless blower system of the present invention.

FIG. 2 is a vertical cross-sectional view showing the reach of the airflow in the blower section shown in FIG.

FIG. 3 is a simplified diagram showing an example of the reach of the airflow in the blower section in the embodiment shown in FIG.

FIG. 4 is a simplified diagram showing another example of the reach of the airflow in the blower section in the embodiment shown in FIG.

FIG. 5 is a perspective view showing an embodiment of a once-through blower used in the ductless blower system of the present invention with a part cut away.

FIG. 6 is a plan view illustrating a state where two vehicles are parked in the air blowing section shown in FIG. 1.

7 is a vertical cross-sectional view of the air blowing section shown in FIG.

FIG. 8 is a plan view exemplifying a state in which three vehicles are parked in the blowing section.

FIG. 9 is a plan view exemplifying a state in which four vehicles are parked in the blowing section.

FIG. 10 is a plan view illustrating a state in which a plurality of air-blowing sections according to the present invention are combined and installed in a parking lot.

FIG. 11 is a plan view illustrating a state in which a plurality of air-blowing sections according to the present invention are combined and installed in a building such as a factory.

FIG. 12 is a configuration diagram showing an embodiment of a blower control device added to the ductless blower system of the present invention.

FIG. 13 is a plan view showing the inside of a factory in which the ductless blower system of the present invention is installed and Example 1 is performed.

FIG. 14 is a graph showing a temperature change at a measurement point P1 during heating in the factory.

FIG. 15 is a graph showing a temperature change at a measurement point P2 during heating in the factory.

FIG. 16 is a graph showing a temperature change at a measurement point P1 during cooling in the factory.

FIG. 17 is a graph showing a temperature change at a measurement point P2 during cooling in the factory.

FIG. 18 is a plan view showing the inside of a parking lot in which the ductless ventilation system of the present invention is installed and the second embodiment is performed.

[Explanation of symbols]

 1 Blower section 2-5 Sides 6,6b Cross-flow blower 7 Airflow 8 Floor 9 Ceiling surface 10 Blower section L0 Vertical length of blower section W0 Length in width direction of blower section W1 Length in width direction of airflow outlet Length of AL1 airflow AL2 Interference range of airflow θ1 Blow-off angle H0 Floor height H1 Installation height of H1 cross-flow fan C1-C9 Vehicle 11 Blower section 12-15 Side 16 Cross-flow blower 17 Air flow 21 Blower section 22-25 Side 26 Cross-flow Blower 27 Airflow 41 Parking lot 42 Entrance of parking lot 43 Outside air intake device 44 Forced exhaust device 45-50 Blower compartment set in roadway 51-69 Blower compartment set in vehicle compartment 70,71 Outside air 81 Building 82,83 Air conditioner 84,85 Air conditioner 86-91 Blower section 92,93 Blower section 101 Cross-flow blower 102 Casing 103 Drive device 104 Wings Vehicle 105 Control device 106 Air suction port 107 Air flow outlet 108 Blow guide 109 Blow guide 201 Control device 202 Control panel 203 Setting device 204 Detector 205 Controller 211-213 Blower section 221-223 Sensor 301 Building 302-305 Wall surface 311 and 312 Air conditioner 313, 314 Air conditioner 321 to 326 Blower section F1 to F16 Through-flow fan P1, P2 Measuring point 401 Building 402 to 405 Wall surface 406 to 409 Outside air intake 410 410 Forced exhaust device P11 to P18 Measuring point

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadahide Arihara 2-31-11 Nihonbashi Ningyocho, Chuo-ku, Tokyo Within Nisshinbo Industries, Inc. (72) Inventor Shigeru Yasui 2-31 Nihonbashi Ningyocho, Chuo-ku, Tokyo 11 Nisshinbo Co., Ltd. (72) Inventor Yuji Hamajima 30 Shozuzaka, Miai Town, Okazaki City, Aichi Prefecture Nisshinbo Co., Ltd. Miai Machinery Factory (72) Inventor Yoshihide Hirata 2-Nihonbashi Ningyocho, Chuo-ku, Tokyo 31-11 Nisshinbo Industries Inc.

Claims (6)

[Claims] 1. An air flow from a plurality of once-through fans that blow a plurality of once-through fans in the same direction as each other or in the same direction as another one of the airflows from the plurality of once-through fans located in front or side of the once-through fan. A ductless blower system, characterized in that the ductless blower is arranged in a building so as to reach a plurality of the crossflow blowers or the airflow from the crossflow blowers. 2. A floor surface and a ceiling surface and four boundary surfaces on the sides are defined, and at least one cross-flow fan is installed therein, and at least the boundary surface in the blowing direction of the cross-flow fan is defined. A plurality of blast sections that are at least partially open are provided in the building, and the airflow generated in one of the blast sections is adjacent to the open boundary surface in the blast direction of the cross-flow blower of the blast section. A ductless blower system, characterized in that the blower section is set so as to reach the inside of the blower section. 3. The ductless blower system according to claim 2, wherein the range of the airflow reaching the blower compartment is 5% or more of the arrival length of the airflow from the once-through blower. 4. The length in the width direction of the airflow outlets of one of the once-through blowers installed in one of the blower compartments, or the width direction of the airflow outlets of the plurality of once-through blowers that blow in the same direction as each other. 3. The ductless blower system according to claim 2, wherein the total length of the ductless blower is 15% or more and 75% or less of the length of the blower section in the width direction. 5. The roadway of the parking lot so as to sequentially convey the airflow through the plurality of air-blowing sections from the outside air intake device of the parking lot and / or the opening where the outside air is easily taken in to the forced exhaust device of the parking lot. The ductless blower system according to claim 2, wherein the ductless blower system is provided in a vehicle compartment. 6. The ductless according to claim 2, wherein the plurality of air-blowing sections are arranged in the building so that conditioned air generated from an air-conditioning system of the building is sequentially conveyed in the building. Blower system.