JP2014206345A - Air conditioning system and air conditioning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform air conditioning capable of making operators involved in an assembly line feel comfortable.SOLUTION: Conditioned air A that is supplied from an air conditioner 18 and a temperature of which is adjusted to a temperature equal to or higher than an optimum temperature for operators 26 is blown onto a floor from a floor surface diffuser 22 opening to a floor surface on which an assembly line 12 is installed at a position offset outward in a width direction in a work area 20 of the assembly line 12 via an underfloor space portion 16 provided under the floor surface. A blower 24 blows the conditioned air A onto the floor in such a manner that an extension direction of the assembly line 12 crosses an air blow direction of the air from a blow port of the blower 24 at a sharp angle, thereby providing a blow residual speed in the work area 20. By doing so, a sensory temperature of each operator 26 is made lower than an actual temperature of the conditioned air A blown from the floor surface diffuser 22. In addition, a problem where intensive strike of the conditioned air A on a part of a body of each operator 26 excessively cools the part of the body of the operator 26 can be avoided.

Description

  The present invention relates to an air conditioning system and an air conditioning method.

Conventionally, an assembly line (in this description, as will be described later, is not limited to an assembly line including a conveyance unit configured of a pallet, a carriage, a belt conveyor, etc., for conveying workpieces, and a plurality of workers are lined up. In order to improve the work environment in the form of a simple work line where each person goes to the work bench and performs the same work or shared work of different processes), various air conditioning systems used in the assembly line building have been proposed. Has been. As one example, a method of arranging an air conditioner on a rack that holds electric wiring and air piping suspended from a ceiling of a building is widely used. This type of air conditioning system blows down the air whose temperature and humidity are adjusted (hereinafter referred to as “air conditioning air” in this description) from above the worker, thereby reducing the work area of the assembly line to the worker's area. It adjusts to desired temperature (for example, refer patent document 1).
An air conditioning system has also been developed in which air supplied to an air supply chamber provided below the room is supplied to the room through a plurality of outlets provided on the floor of the room. This air conditioning system includes a controller that detects the temperature of the room and adjusts the amount of air supplied to the air supply chamber and the opening of each outlet. The control unit then opens the opening of each outlet within the range of the upper limit of the opening set equally for each outlet so that the variation in the air volume blown from each outlet is within a predetermined range. Can be adjusted (see, for example, Patent Document 2).

JP-A-8-75217 JP 2009-180425 A

Well, the conventional air conditioning system of the type that blows down the air-conditioned air from above the worker entrains the hot air staying near the ceiling of the building when blowing down the air-conditioned air, which is efficient for the worker There is a problem that cold air cannot be supplied.
On the other hand, an air conditioning system of a type that supplies air supplied to an air supply chamber provided below the room into the room through a plurality of outlets provided on the floor of the room stays near the ceiling of the building. Cold air can be supplied to the operator without entraining hot air. For this reason, it is possible to improve the energy saving effect as compared with an air conditioning system that blows down air-conditioned air from above the worker. However, there is a drawback in that the cold air is intensively applied to a part of the body from the operator's feet, resulting in partial cooling, which does not sufficiently realize a comfortable working environment. .

  The present invention has been made in view of the above problems, and an object of the present invention is to provide air conditioning that is comfortable for workers engaged in the assembly line and to improve the working environment in the assembly line.

(Aspect of the Invention)
The following aspects of the present invention exemplify the configuration of the present invention, and will be described separately for easy understanding of various configurations of the present invention. Each section does not limit the technical scope of the present invention, and some of the components of each section are replaced, deleted, or further while referring to the best mode for carrying out the invention. Those to which the above components are added can also be included in the technical scope of the present invention.

(1) An air conditioning system comprising: a floor air outlet that blows air-conditioned air upward from the floor; and a blower that blows air-conditioned air blown upward from the floor air outlet horizontally. 1).
In the air conditioning system described in this section, the air-conditioning air blown toward the floor from the floor outlet that opens on the floor is concentrated in a narrow area on the floor by the horizontal air blown by the blower The air conditioning will be performed properly. Then, discomfort such as cooling due to exposure of only a specific part of the body to cold air is eliminated.
Note that the method of supplying air-conditioning air to the floor outlet is appropriately selected in consideration of the installation environment of the air-conditioning system, the required air-conditioning capacity, installation cost, and the like. For example, a configuration in which an air-conditioning air outlet that supplies air-conditioned air is installed on the floor surface, or air-conditioned air is supplied from the air-conditioner to a floor air outlet through a duct installed on the floor surface. It is done. Moreover, it is good also as comprised as the below-mentioned (8) term.

(2) The air conditioner system according to (2), wherein the blower in the item (1) blows air from a vertically long air outlet at a predetermined height from the floor surface.
The blower of the air blower in the air conditioning system described in this section may be anything that moves so as to disperse the air-conditioned air mass. Here, when it is set as the aspect which blows off the ventilation of an air blower from upper direction, there exists a tendency for cold air to accumulate in the specific location of a body. Moreover, when it is set as the ventilation of the aspect which blows off diagonally upward from the downward direction, it is difficult to adjust so that cold air may not be sprayed on the specific location of the body. Therefore, it is desirable that the air from the blower be blown in a horizontal direction within a predetermined height range from the floor so that cold air does not hit a specific part of the body. In addition, the longitudinal blower-like air blow from the vertically long air outlet of the blower imparts the work area blowout residual speed to the vertically long belt, and promotes the reduction of the temperature of the operator's sensible temperature. In addition, the blower opening of the blower is not necessarily limited to the vertically long shape as long as it can perform the blowing of the vertically long belt shape. For example, it is good also as carrying out vertically long strip-shaped ventilation by arranging a plurality of dot-like ventilation openings vertically long, and performing ventilation from each ventilation opening all at once.

(3) In the above items (1) and (2), an air conditioning system in which the air blowing speed from the blower is set to be equal to or higher than the blowing speed of air-conditioned air from the floor outlet.
The air conditioning system described in this section is configured to forcibly move the blown air-conditioning air by setting the blowing speed from the blower to be higher than the blowing speed of the air-conditioning air from the floor outlet. . The air-conditioning air blown out from the floor outlet is prevented from concentrating in a narrow area on the floor. Adjustment of the blowout speed of air-conditioning air from the floor outlet is based on the air velocity of the air-conditioning air supplied from the air conditioner, the opening area and shape of the floor outlet, and the form of the louvers installed in the opening. It is determined by setting to. On the other hand, the blowing speed of the blower is determined by the operating speed of the driving means (motor or the like) of the blower.

(4) In the above items (1) to (3), the floor outlet is provided on the floor where the assembly line is installed, and the conditioned air blown upward from the floor outlet is provided. An air-conditioning system in which the air blowing direction of the blower is set so that the air is blown to a work area extending in the extension direction of the assembly line.
In the air conditioning system described in this section, the air-conditioning air blown upward from the floor surface outlet provided on the floor surface where the assembly line is installed is moved to the work area extending in the extension direction of the assembly line by the blower. By being blown, the air flows without concentrating in a narrow area on the floor, and air conditioning in the work area of the assembly line is appropriately performed. Then, discomfort such as cooling caused by only a specific part of the body of the worker engaged in the work on the assembly line being exposed to the cold is eliminated.

(5) In the above items (1) to (4), the work area is provided along one or both sides of the assembly line, and the floor outlet and the blower are provided along the work area. (Claim 5).
In the air conditioning system described in this section, the floor outlet and the blower are provided along the work area of the assembly line, so that the air conditioning of the work area provided along one side or both sides of the assembly line can be performed. Appropriately done. The air conditioner is installed on one side or both sides of the assembly line in consideration of the installation mode of the underfloor space and the blowing speed of the conditioned air from the floor outlet.

(6) The air conditioning system according to claim 5, wherein a plurality of the floor surface outlets and blowers are provided at predetermined intervals along the work area of the assembly line.
In the air conditioning system described in this section, a plurality of floor outlets and blowers are provided at predetermined intervals along the work area of the assembly line, so that air conditioning over the entire work area is appropriately performed. Is. In addition, it installs so that the positional relationship of several floor surface outlets and an air blower may become the same in each position over the extension direction of an assembly line. Thereby, the direction in which the air-conditioning air blown out from the plurality of outlets is blown by the blower is aligned over the extending direction of the assembly line. And the air blow by the blower located upstream adjacent to the extension direction of the assembly line is appropriately re-accelerated without being disturbed by the blow of the blower adjacent downstream, and a smooth flow of air is formed. Become. Regarding the air conditioner, the minimum necessary number is installed at an appropriate place in consideration of the blowing speed of the air-conditioned air from the floor outlet.

(7) In the above items (5) and (6), the blower is an air conditioning system including a blower opening extending in the extending direction of the assembly line and facing the center line of the assembly line (claim 7).
In the air conditioning system described in this section, the air blowing in the work area of the assembly line is appropriately performed because the blower outlet of the blower is oriented in the extension direction of the assembly line and toward the center line of the assembly line. . That is, the blower outlet of the blower is installed in such a manner that the extending direction of the assembly line and the blower direction from the blower outlet intersect at an acute angle. Further, by appropriately adjusting the crossing angle, air conditioning over the entire work area is appropriately performed. Then, discomfort such as cooling due to exposure of only a specific part of the worker's body to cold air is eliminated.

(8) In the above items (1) to (7), an underfloor space is provided below the floor, and the floor outlet is connected to the underfloor space on the floor of the work area. An air conditioning system provided with an air conditioner that is provided and supplies air conditioned air to the underfloor space.
In the air conditioning system described in this section, the air-conditioning air supplied from the air conditioner opens to the floor surface in the work area of the assembly line through the underfloor space provided below the floor surface where the assembly line is installed. It blows out on the floor from the floor outlet. The conditioned air blown toward the floor flows without being concentrated in a narrow area on the floor by the horizontal air generated by the blower, and air conditioning in the work area of the assembly line is appropriately performed. Is. Then, discomfort such as cooling due to exposure of only a specific part of the worker's body to cold air is eliminated.

  The underfloor space is formed under the floor where the assembly line is installed, and the installation mode is, for example, directly below the transport section of the assembly line and under the floor having a cross-sectional shape over the work area. Formed as a chamber. In this case, the underfloor space functions as a so-called header. Moreover, it is good also as forming as a groove | channel extended in strip | belt shape in parallel with an assembly line in the floor surface of the work area adjacent to an assembly line. In this case, the underfloor space functions as a so-called duct.

(9) The air conditioning system as set forth in (8) above, wherein the conditioned air blown from the floor outlet is set to a temperature equal to or higher than an optimum temperature for an operator in the work area.
The air conditioning system described in this section optimizes the sensible temperature of the worker, not the actual room temperature in the work area of the assembly line. That is, an optimum temperature for the worker (atmosphere temperature, atmosphere humidity, work content, clothes, individual temperature and the like, and other factors that affect the comfort of the worker, etc.) ) Air-conditioning air adjusted to the above temperature is supplied from the air conditioner and blown out from the floor outlet. And by sending the air-conditioning air blown out from the floor blowout port by the blower, for example, in such a manner that the extending direction of the assembly line and the blowing direction from the blower port intersect at an acute angle, the blowout residual speed in the work area ( Work area blowing residual velocity V> 0 m / s). As a result, the sensible temperature of the operator is lowered from the actual temperature of the air-conditioned air blown out from the floor outlet. In addition, it is desirable that the temperature and the air blowing speed of the air-conditioning air adjusted by the air conditioner are appropriately adjusted by feeding back the room temperature in the work area of the assembly line. Therefore, it is desirable that the air conditioning system includes a temperature sensor in the work area and a control unit that receives the detection signal of the temperature sensor and controls the air conditioning temperature of the air conditioner. On the other hand, once the air blowing direction and air blowing speed of the blower are set, they may be readjusted appropriately by the operator. Moreover, it is good also as performing operation control of an air conditioner and an air blower in cooperation with a control means as needed. As the control means, a collective control function may be added to the controller of the air conditioner, or the air conditioner and the blower may be controlled by a separate calculator such as a personal computer.

(10) In the above items (8) and (9), the air conditioner is built in the underfloor space.
In the air conditioning system described in this section, since the air conditioner is built in the underfloor space, the work area of the assembly line is eroded by the air conditioner and does not narrow. In addition, the air conditioner built in the underfloor space portion has a size corresponding to the size of the underfloor space portion, and an accompanying part such as a drain pipe generated by heat exchange can be installed in the underfloor space portion. .
(11) The air conditioning system according to (8) to (10), wherein the air conditioner is coupled to an underfloor space through a coupling and is movable on the floor surface.
The air-conditioning system described in this section can supply air-conditioned air to the space below the floor at different installation locations as the air-conditioner moves on the floor, as required. Is eroded by the air conditioner and does not narrow. In order to make the air conditioner movable on the floor, movable means such as casters are attached to the air conditioner. In addition, as for the accompanying parts such as drainage pipes, followability at the time of movement is ensured by using a flexible hose. In addition, by using a coupling in the connecting portion with the underfloor space portion, the connection between the air conditioner and the underfloor space portion can be easily opened, and the mobility of the air conditioner and the degree of freedom of the installation location are increased.

(12) An air conditioning method in which air-conditioned air is blown upward from a floor outlet provided on the floor, and the air-conditioned air blown upward from the floor outlet is blown horizontally by a blower. ).
(13) The air conditioning method according to (12), wherein the blower blows air from a vertically long air outlet at a predetermined height from the floor surface.
(14) In the above items (12) and (13), an air conditioning method in which the air blowing speed from the blower is set to be equal to or higher than the air blowing speed from the floor air outlet (claim 11).

(15) In the above items (12) to (14), the floor outlet is provided on the floor where the assembly line is installed, and the conditioned air blown upward from the floor outlet is supplied to the assembly line. An air conditioning method for setting a blowing direction of the blower so as to blow to a work area extending in an extending direction (claim 12).
(16) In the above items (12) to (15), the work area is provided along one or both sides of the assembly line, and the floor outlet and the blower are provided along the work area for air conditioning. An air conditioning method (claim 13).
(17) The air conditioning method according to the above (16), wherein air conditioning is performed by providing a plurality of the floor outlets and blowers at predetermined intervals along the work area of the assembly line.

(18) In the above items (16) and (17), an air conditioning method in which the air blowing port of the blower is air-conditioned in the extension direction of the assembly line and toward the center line of the assembly line (claim 15).
(19) In the above items (12) to (18), an underfloor space is provided below the floor, and the floor outlet is provided so as to communicate with the underfloor space on the floor of the work area. An air conditioning method of supplying air conditioned air to the underfloor space by an air conditioner (claim 16).
(20) The air conditioning method according to (19), wherein the conditioned air blown from the floor outlet is set to a temperature equal to or higher than a temperature optimum for an operator in the work area.
(21) The air conditioning method according to (12) to (20) above, wherein the air conditioner is built in the underfloor space.
(22) In the above items (12) to (21), an air conditioning method in which the air conditioner is connected to an underfloor space through a coupling, and the floor surface is configured to be movable.

  And the air conditioning method as described in said (12) to (22) term is performed by the air conditioning system as described in said (1) to (11) term, The air conditioning system as described in said (1) to (11) terminology The same action can be obtained.

  Since this invention was comprised in this way, it becomes possible to aim at the improvement of the working environment in an assembly line by performing comfortable air conditioning for the worker engaged in an assembly line.

It is a schematic diagram which shows the assembly line which comprises the air conditioning system which concerns on embodiment of this invention, (a) is sectional drawing of the width direction of an assembly line, (b) is the figure which planarly viewed the assembly line. (A) is a side view of the assembly line shown in FIG. 1, (b) is a partially enlarged view of (a). FIG. 2 shows an example of an underfloor structure of the assembly line shown in FIG. 1, (a) is a sectional view in the width direction of the assembly line, and (b) is a plan perspective view of the assembly line. FIG. 2 shows another example of the underfloor structure of the assembly line shown in FIG. 1, (a) is a sectional view in the width direction of the assembly line, and (b) is a plan perspective view of the assembly line. The air-conditioning effect by the air-conditioning system which concerns on embodiment of this invention is compared with the conventional air-conditioning system, (a)-(c) is the temperature distribution figure which concerns on the prior art example as a comparison, (d)-( f) is a temperature distribution diagram according to the present invention.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, an air conditioning system 10 according to an embodiment of the present invention includes an underfloor space portion 16 provided below a floor surface of a floor 14 on which an assembly line 12 is installed, and an underfloor space portion. 16 is provided with an air conditioner 18 that supplies air-conditioned air A to 16. The assembly line 12 includes a transport unit 19 configured of a pallet, a carriage, a belt conveyor, and the like for transporting the workpiece W, and a space for performing assembly work on both sides in the width direction of the transport unit 19. A work area 20 extending in the extending direction is included. The work area 20 has a necessary and sufficient width in consideration of work contents assumed in the assembly line 12. In the illustrated example, the work area 20 is provided along both sides of the assembly line 12, but may be provided only on one side.

  The air conditioning system 10 includes a floor surface outlet 22 that opens to the floor surface 14 of the work area 20 and communicates with the underfloor space portion 16, and a blower 24 that can blow air in a horizontal direction above the floor 14. It is out. Both the floor outlet 22 and the blower 24 are arranged at positions that do not hinder the work of the worker 26 in the work area 20. A plurality of floor outlets 22 and blowers 24 are provided at predetermined intervals along the extending direction of the assembly line 12. A floor outlet 22 and a blower 24 are provided on both sides of the assembly line 12.

  Further, the blower 24 includes an air outlet that extends in the assembly line 12 and faces the center line of the assembly line 12. That is, the air-conditioning air A blown out from the floor surface outlet 22 onto the floor is caused to flow by the blower 24 in such a manner that the extending direction of the assembly line 12 and the blowing direction from the blower opening of the blower 24 intersect at an acute angle. In addition, the arrangement and the blowing direction of the floor outlet 22 and the blower 24 are set. Here, any of the blower floor outlet 22 and the blower 24 may be on the upstream side, and is appropriately arranged according to the installation environment and the form of the blower 24. Regarding the air conditioner 18, the minimum necessary number is installed at an appropriate place in consideration of the installation mode of the underfloor space 16 and the blowing speed of the air-conditioning air A from the floor outlet 22. In the illustrated example, the installation interval of the floor outlet 22 and the blower 24 is L / 2 with respect to the installation interval L of the two air conditioners 18 adjacent in the extending direction of the assembly line 12.

The underfloor space portion 16 is formed below the floor surface on which the assembly line 12 is installed. As shown in FIG. 3, the installation mode is directly below the transport unit 19 of the assembly line 12, and It is formed as an underfloor chamber 16 </ b> A having a cross-sectional shape over the work area 20. In this case, the underfloor space 16 functions as a so-called header. In the example of FIG. 3, the floor outlet 22 is a slit-like opening, and preferably does not hinder the flow of air, such as a punching plate, so as not to cause a step difference from the floor. It is covered with the cover of the aspect which does not impair the continuity of. In this example, since the underfloor chamber 16A functions as a header, the air conditioner 18A is provided only on one side of the assembly line 12.
In the example of FIG. 3, the air conditioner 18A of the type incorporated in the underfloor room 16A is used, so that the work area 20 of the assembly line 12 is not eroded by the air conditioner 18A and narrows. The air conditioner 18A built in the underfloor chamber 16A has a size corresponding to the size of the underfloor chamber 16A, and an accompanying part such as a drain pipe generated by heat exchange can be installed in the underfloor chamber 16A. It is done.

On the other hand, as shown in FIG. 4, the underfloor space 16 may be formed as a groove 16 </ b> B extending in a strip shape parallel to the assembly line 12 on the floor surface of the work area 20 of the assembly line 12. In this case, the underfloor space 16 functions as a so-called duct. And the floor surface outlet 22 is formed by covering the opening part of the groove | channel 16B with covers, such as a punching plate.
In the example of FIG. 4, an air conditioner 18 </ b> B configured to be movable on the floor surface is disclosed together with the air conditioner 18 </ b> A installed below the floor so as to be adjacent to the groove 16 </ b> B. This type of air conditioner 18B is coupled to the groove 16B via a coupling, and the air conditioner 18B moves on the floor surface to supply the air conditioned air A to the groove 16B at different installation locations as necessary. It is possible. Therefore, the work area 20 of the assembly line is not eroded and narrowed by the air conditioner 18B. In order to allow the air conditioner 18B to move on the floor surface, movable means such as casters 28 are attached to the air conditioner 18B. Further, with respect to accompanying parts such as drainage pipes, it is possible to ensure followability when the air conditioner 18B is moved by using a flexible hose or the like. In addition, by using a coupling at the connection portion with the groove 16B, the connection between the air conditioner 18B and the groove 16B can be easily opened, and the mobility of the air conditioner 18B and the degree of freedom of installation location are increased. Moreover, in this example, since the two groove | channels 16B function as a duct, the air conditioner 18A or the air conditioner 18B is provided in the both sides of the assembly line 12 corresponding to each duct. Note that, depending on the piping configuration that connects the air conditioner 18A or the air conditioner 18B and each groove 16B, the necessary air-conditioning air flow may be provided only on one side of the assembly line 12 as in the example of FIG. Supply is possible.

As the blower 24, a fan that blows a vertically long belt from a vertically long air outlet at a predetermined height from the floor surface is suitable. The configuration of the vertical air outlet of the blower 24 is not particularly limited, but a blower having directivity in the air blowing mode or a type of fan 24 in which the rotating blades are not exposed is desirable.
Further, the blowing speed from the blower 24 is set to be equal to or higher than the blowing speed of the conditioned air A from the floor outlet 22. As the setting range of the blowing speed, it is desirable to set the blowing speed of the conditioned air A from the floor outlet 22 to 1 to 2 m / s and the blowing speed from the blower 24 to 1 to 3 m / s. The adjustment of the blowing speed of the air-conditioning air A from the floor outlet 22 is performed by adjusting the air speed of the air-conditioning air A supplied from the air conditioner 18, the opening area and shape of the floor outlet 22, and the louver installed in the opening. It is determined by comprehensively setting the form and the like. On the other hand, the blowing speed of the blower 18 is determined by the operating speed of the driving means (motor or the like) of the blower.
Furthermore, the air-conditioning air A blown from the floor outlet 22 is set to a temperature equal to or higher than the optimum temperature for the worker 26 in the work area 20. The set temperature of the air-conditioning air A is set to 20 to 28 ° C, preferably 23 to 24 ° C in the summer.

  In addition, it is desirable that the temperature and the blowing speed of the air-conditioning air A adjusted by the air conditioner 18 are appropriately adjusted by feeding back the room temperature of the work area 20 of the assembly line 12. Therefore, it is desirable that the air conditioning system 10 includes a temperature sensor in the work area 20 and a control unit that receives the detection signal of the temperature sensor and controls the air conditioning temperature of the air conditioner. On the other hand, the air blowing direction and the air blowing speed of the blower 24 may be readjusted as appropriate by the operator 26 once set. Moreover, it is good also as performing operation control of the air conditioner 18 and the air blower 24 in cooperation with a control means as needed. As a control means, a collective control function may be added to the controller of the air conditioner 18, or the air conditioner 18 and the blower 24 may be controlled by a separate computing unit such as a personal computer.

Specific setting examples obtained as a result of intensive studies by the present inventors are as follows.
First, the installation interval (pitch) between the floor outlet 22 and the blower 24 is set to 4 locations / 6 m.
When the factory summer atmospheric temperature is 30 ° C. and the factory summer atmospheric humidity is 60%, the floor blowing temperature from the floor blowing outlet 22 is 24 ° C. (atmosphere temperature−6 ° C.) and the blowing speed is By setting 1.5 m / s and the blowout residual speed V of the work area 20 by the blower 24 = 1 m / s, it is possible to provide an energy-saving and comfortable work environment.

Now, according to the embodiment of the present invention configured as described above, the following operational effects can be obtained.
In the air conditioning system 10 according to the embodiment of the present invention, the air-conditioning air A supplied from the air conditioner 18 is assembled to the assembly line 12 via the underfloor space 16 provided below the floor where the assembly line 12 is installed. From the floor surface outlet 22 opened to the floor surface of the work area 20, the air is blown out onto the floor. The air-conditioning air A blown out onto the floor flows without being concentrated in a narrow area on the floor due to the blowing in the horizontal direction generated by the blower 24. In addition, the arrangement and the blowing direction of the floor blowout port 22 and the blower 24 are the same as the air-conditioning air A blown from the floor blowout port 22 by the blower 24, and the blowing from the extension direction of the assembly line 12 and the blower opening of the blower 24. By setting the direction to flow in a manner that intersects the acute angle, air conditioning in the work area 20 of the assembly line 12 is appropriately performed.

  Further, the air conditioning system 10 according to the embodiment of the present invention optimizes the sensible temperature of the worker 26 instead of the actual room temperature in the work area 20 of the assembly line 12. That is, an optimum temperature for the worker 26 (atmosphere temperature, atmosphere humidity, work content, clothing, individual constitution and preferences of the worker, and other factors that affect the comfort of the worker are appropriately determined. .) The air-conditioning air A adjusted to the above temperature is supplied from the air conditioner 18 and blown out from the floor outlet 22. Then, the air-conditioning air A blown from the floor outlet 22 by the blower 18 is conveyed from the work area 20 in such a manner that the extending direction of the assembly line 12 and the blowing direction from the blower 24 of the blower 24 intersect at an acute angle. By flowing toward the portion 19, a blowout residual speed in the work area 20 (work area blowout residual speed V> 0 m / s) is given. Thereby, it becomes possible to lower the sensible temperature of the operator 26 from the actual temperature of the conditioned air A blown from the floor outlet 22. FIG. 2B shows an example in which the blowout residual speed V of the air blown against the worker 26 in the work area 20 is set to 2 m / s.

  The blower 24 may be blown by moving the air-conditioned air mass to at least the work area 20 of the assembly line 12. Here, when it is set as the aspect which blows off the ventilation of the air blower 24 from upper direction, there exists a tendency for cold air to accumulate in the specific location of the operator's 26 body. Further, even when the air is blown from the lower side obliquely upward, it is difficult to adjust so that the cold air is not blown to a specific part of the worker 26's body. Therefore, in the embodiment of the present invention, the air blown by the blower 24 is within a predetermined height range from the floor surface (for example, an average value) so that the cold air does not hit a specific part of the body of the worker 26. A vertical band-shaped blast in a horizontal direction is made in the height worker (range from above the knee to the neck).

  FIG. 5 shows the air-conditioning effect of the air-conditioning system 10 according to the embodiment of the present invention in the same factory atmosphere as the air-conditioning effect of the conventional air-conditioning system in which the air-conditioning air A is blown down from above the worker 26. This is a comparison. Here, FIGS. 5A to 5C are temperature distribution diagrams according to a conventional example as a comparison, and FIGS. 5D to 5F are temperature distribution diagrams according to the present invention. FIGS. 5A and 5D show a floor height of 0.5 m, FIGS. 5B and 5E show a floor height of 1.0 m, and FIGS. 5C and 5F show a floor height of 1. Each shows a temperature distribution of 0.5 m (between air temperature 22 ° C. and 28 ° C.). As is clear from these figures, in FIG. 5 (c) showing the temperature distribution with a floor height of 1.5 m according to the prior art, a partial air-conditioning air mass (shading “dark” region) is prominently generated. In contrast, in the temperature distribution (f) with the floor height of 1.5 m according to the embodiment of the present invention, it is understood that the partial air-conditioning air mass has disappeared. As described above, according to the embodiment of the present invention, it is possible to effectively eliminate the discomfort such as the cooling of the worker 26 caused by the specific part of the body of the worker 26 being exposed to the cold air. It becomes possible.

  In addition, the air conditioning system 10 according to the embodiment of the present invention is configured so that the blowing speed from the blower 24 is set to be higher than the blowing speed of the conditioned air A from the floor blowing outlet 22, so The blown air-conditioning air A is forcibly moved toward the work area 20 of the assembly line 12. And it can prevent that the air-conditioning air A blown out from the floor surface outlet 22 concentrates in the lump shape in the narrow range on a floor.

In addition, the air conditioning system 10 according to the embodiment of the present invention has an assembly line in which a plurality of floor outlets 22 and blowers 24 are provided at predetermined intervals along the extending direction of the assembly line 12. Twelve air conditioning over the entire work area 20 is appropriately performed. In the example of FIG. 1, as described above, the installation interval of the floor outlet 22 and the blower 24 is L / 2 with respect to the installation interval L of the two air conditioners 18, but FIG. In the example of), with respect to the installation interval L of the two air conditioners 18, the installation interval of the blower 24 is L / 2, and the installation interval of the floor outlet 22 is L / 4.
In the example of FIG. 1B, the floor outlet 22 and the blower 24 are arranged such that the floor outlet 22 is located upstream in the blowing direction and the blower 24 is located downstream. However, this arrangement may be reversed as necessary in consideration of the structure and performance of the blower 24 to be used. Further, the air blowing direction (intersection angle between the extending direction of the assembly line 12 and the air blowing direction from the air blowing port of the air blower 24) in a plan view (see FIG. 1B) by the air blower 24 is also comfortable for the operator 26. As needed, it is determined as needed.

In addition, the air-conditioning air A which was blown out from each blower outlet 22 by installing so that the positional relationship of the several floor surface blower outlets 22 and the air blower 24 may become the same in each position over the extension direction of the assembly line 12. However, the direction in which the air is blown by each blower 24 is aligned over the extending direction of the assembly line 12. And the ventilation by the upstream blower 18 adjacent to the extending direction of the assembly line 12 is appropriately re-accelerated without being disturbed by the ventilation of the blower 18 adjacent downstream, and a smooth flow of the conditioned air A is formed. Will be.
Furthermore, since the floor outlet 22 and the blower 24 are provided on both sides of the assembly line 12, the above-described air conditioning is appropriately performed on the work areas 20 on both sides of the assembly line. .

  In the above description, the case where the blower 24 is installed on the floor 14 is described as an example. However, the blower 24 may be installed so as to be suspended from the ceiling or wall surface of the building as necessary. . Even in this case, it is desirable to configure the apparatus to blow a vertically long strip horizontally at a predetermined height from the floor so that a specific portion of the body of the worker 26 does not get cold.

In addition, as described above, the method of supplying the air-conditioning air A to the floor air outlet 22 is that the air-conditioning air A of the air conditioner 18 is supplied to the floor air outlet 22 via the underfloor space 16 formed under the floor. In addition to the configuration to be supplied, it is possible to make an appropriate selection in consideration of the installation environment of the air conditioning system, the required air conditioning capacity, the installation cost, and the like. Therefore, for example, the air outlet of the air conditioner 18 that supplies the air-conditioned air A is installed on the floor surface, or the air-conditioned air is supplied from the air conditioner 18 to the floor surface outlet 22 through a duct installed on the floor surface. A may be supplied. The air conditioner 18 may also be supplied with the conditioned air A using a central air conditioner installed in the building.
Furthermore, as described above, the air conditioner is not limited to the air conditioning of the assembly line 12 including the transport unit 19, and a simple configuration in which a plurality of workers are lined up and headed to the work table, and each person performs the same work or another work sharing work. It will be understood that the air conditioning system 10 according to the present invention can be appropriately applied to air conditioning of a work line and further to air conditioning of a building that does not include a work line.

  10: Air conditioning system, 12: Assembly line, 14: Floor, 16, 16A, 16B: Underfloor space, 18, 18A, 18B: Air conditioner, 20: Work area, 22: Floor outlet, 24: Blower, 26 : Worker, A: Air-conditioning air

Claims (16)

An air conditioning system comprising: a floor outlet that blows air-conditioned air upward from the floor surface; and a blower that blows air-conditioned air blown upward from the floor outlet in a horizontal direction. The air conditioning system according to claim 1, wherein the blower blows air from a vertically long air outlet at a predetermined height from the floor surface. The air conditioning system according to claim 1 or 2, wherein a blowing speed from the blower is set to be equal to or higher than a blowing speed of the conditioned air from the floor outlet. The floor outlet is provided on the floor where the assembly line is installed, and the conditioned air blown upward from the floor outlet is blown to a work area extending in the extension direction of the assembly line. The air-conditioning system according to any one of claims 1 to 3, wherein a blowing direction of the blower is set. The said work area is provided along the one side or both sides of the said assembly line, The said floor surface outlet and an air blower are provided along the said work area, Any one of Claim 1 to 4 characterized by the above-mentioned. The air conditioning system according to claim 1. 6. The air conditioning system according to claim 5, wherein a plurality of the floor outlets and blowers are provided at predetermined intervals along the work area of the assembly line. The air conditioning system according to claim 5 or 6, wherein the blower includes a blower opening extending in the assembly line and facing a center line of the assembly line. An underfloor space portion is provided under the floor surface, the floor surface outlet is provided to communicate with the underfloor space portion on the floor surface of the work area, and conditioned air is supplied to the underfloor space portion. The air conditioning system according to claim 1, further comprising an air conditioner. An air conditioning method comprising blowing air-conditioned air upward from a floor surface outlet provided on the floor, and blowing the air-conditioned air blown upward from the floor outlet through a blower in a horizontal direction. The air conditioning method according to claim 9, wherein the blower blows air from a vertically long air outlet at a predetermined height from the floor surface. The air-conditioning method according to claim 9 or 10, wherein a blowing speed from the blower is set to be equal to or higher than a blowing speed of conditioned air from the floor outlet. The blower is provided so that the floor outlet is provided on a floor surface where an assembly line is installed, and the air-conditioned air blown upward from the floor outlet is blown to a work area extending in the extension direction of the assembly line. The air-conditioning method according to claim 9, wherein the air blowing direction is set. 13. The air conditioning apparatus according to claim 9, wherein the work area is provided along one or both sides of the assembly line, and the floor outlet and the blower are provided along the work area to perform air conditioning. The air conditioning method according to claim 1. The air conditioning method according to claim 13, wherein air conditioning is performed by providing a plurality of the floor outlets and blowers at predetermined intervals along the work area of the assembly line. The air-conditioning method according to claim 13 or 14, wherein the air-conditioning is performed with an air outlet of the blower in an extending direction of the assembly line and toward a center line of the assembly line. An underfloor space section is provided under the floor surface, the floor surface outlet is provided to communicate with the underfloor space section on the floor surface of the work area, and conditioned air is supplied to the underfloor space section by an air conditioner. The air-conditioning method according to claim 9, wherein the air-conditioning method is performed.