JP6484080B2 - Thermally stratified cooling system - Google Patents

Description

  The present invention forms a temperature stratification in an air-conditioned space of a building having a large air-conditioned space with a high ceiling that requires cooling, and the air-conditioned space is above the cooling space and the existing height range of the human existence range. The present invention relates to a temperature stratified cooling system that is divided into non-cooled spaces.

  In factories, spot type air conditioners directed to the worker's position are often used, but cold work cannot always be supplied to the worker in work with a wide work movement area. Therefore, when cooling the indoor space of a building having a large indoor space with a high ceiling such as a factory, gymnasium, hall, etc., air is strongly blown out from the air conditioner installed near the ceiling toward the indoor space, A mixed air-conditioning system is performed in which the return air that flows through the indoor space is returned to the air conditioner to mix the air in the indoor space and the cooling air to cool the entire indoor space to a substantially constant temperature. In the mixed air-conditioning system, not only the presence (residence) space where humans exist (residence), but also the non-existence (non-residence) space from the middle to the upper part of the indoor space where humans do not exist (residence) are uniformly cooled by cooling air. Therefore, a large amount of cooling air must be consumed, the energy consumption of the air conditioner increases, and energy saving cannot be achieved. In order to solve such problems of the mixed air conditioning system, a temperature stratified air conditioning system has been disclosed (see Patent Document 1).

  The temperature stratified air conditioning system disclosed in Patent Document 1 includes a loop duct arranged so as to form a closed loop as a whole at a set height level in a perimeter zone, which is a region where heat load is transmitted from the outside of a building, and air A cooling coil for cooling and a hot water coil for heating air are built in, and an air conditioner for sending air for heating and cooling into the loop duct and a cylindrical member inserted and arranged at a set pitch in the longitudinal direction on the lower surface of the loop duct are provided. In addition, the length of the upper end opening parallel to the center axis of the loop duct of the cylindrical member is adjustable, and the cooling air supplied to the loop duct by the air conditioner is supplied to the cylindrical duct. An air blowing nozzle that blows out as a downward flow from the lower end, and a loop duct that sucks air at a position lower than the set height level in the building into the air conditioner. And a return air opening disposed one to a high level or low level.

JP 2014-1892 A

  The temperature stratification type air conditioning system disclosed in Patent Document 1 can achieve sufficient energy saving during cooling by forming a temperature stratification having a low-temperature air layer with a small volume in the height direction during cooling in summer. During heating in the winter, the air conditioner can be operated with the same air volume as in the summer, while the cold draft is suppressed and the inside of the building can be heated while suppressing the generation of cold air at the feet.

  When the temperature stratification type air conditioning system of Patent Document 1 is installed in a new factory, it is possible to secure an installation location of an air conditioner that forms temperature stratification and a loop duct that forms a closed loop at the stage of planning or design. Therefore, various production lines can be installed while installing air conditioners and loop ducts. However, when the temperature stratified air conditioning system of Patent Document 1 is installed in a renovation work at an existing factory, a manufacturing line is already installed in the existing factory, so that the manufacturing line is avoided or the layout of the manufacturing line is changed. Therefore, it is necessary to install a loop duct, and a large-scale renovation work must be performed, which increases the construction period and costs. Even when a temperature-stratified air conditioning system is installed in a new factory, if the layout of the production line needs to be changed, the line cannot be installed at the position of the loop duct. The degree of freedom of change is reduced.

  It is an object of the present invention to be able to form a temperature stratification in a large air-conditioned space of a building, and to avoid a production line not only in a new building but also in an existing building where a production line is already installed. It is another object of the present invention to provide a temperature stratified cooling system that can be installed inexpensively in a short construction period without changing the layout of the production line. Another object of the present invention is that a large area is not required at an installation location that obstructs the position of an existing production line, the degree of freedom in changing the layout of the production line is not impaired, and the layout of the production line is as desired. It is an object of the present invention to provide a temperature stratified cooling system that can be changed to

  The premise of the present invention to solve the above-mentioned problems is that a temperature stratification is formed in the air-conditioned space of a building having a large air-conditioned space with a high ceiling that requires cooling, and the air-conditioned space is cooled within the range of human existence. It is a temperature stratified cooling system that divides space and uncooled space above the existing height range.

As a feature of the present invention based on the above premise, the temperature stratification type cooling system includes a first placement portion located at the top, a second placement portion located immediately below the first placement portion, and the first and second placement portions. A storage stand having a leg portion extending downward from the floor and extending in the vertical direction from the floor surface of the building, and placed near the boundary between the cooling space and the non-cooling space placed on the first placement portion of the storage stand An outdoor unit of an air conditioner that is located in a non-cooling space and has a blow-out port that blows out high-temperature air, and is placed on the second mounting portion of the storage frame and below the outdoor unit and between the cooling space and the non-cooling space An indoor unit of an air conditioner located in a cooling space near the boundary and connected to the outdoor unit by a refrigerant pipe, and an air supply duct connected to the indoor unit and supplying cooling air supplied from the indoor unit to the cooling space, The return air that is connected to the indoor unit and returns the return air in the cooling space to the indoor unit And a transfected, outlet of the cooling air at the tip portion of the air supply duct is arranged on the floor near the cooling space opens toward a floor surface, a suction port of the return air the air at the tip portion of the return air duct Is located at a predetermined distance upward from the air outlet of the air supply duct, and is located above the cooling space on the boundary side between the cooling space and the non-cooling space and is open toward the floor surface. It is in.

  As another example of the present invention, the outdoor unit includes a wind direction plate that adjusts a blowing direction of high temperature air (air including heat exchange exhaust heat) blown out from the blow outlet, and the high temperature air is not cooled by the wind direction plate. It blows out from the lower part of the space toward the upper part.

  As another example of the present invention, the building has an exhaust mechanism that is installed in the upper part of the non-cooling space and exhausts the air in the non-cooling space to the outside. The blowing direction and the horizontal blowing direction are adjusted, and hot air is blown toward the exhaust mechanism.

  As another example of the present invention, a building is installed in an uncooled space and has an outside air intake for taking outside air into the uncooled space. In a temperature stratified cooling system, outside air is taken from the outside air intake into the uncooled space. While supplying air, the air in the non-cooling space is exhausted outdoors from the exhaust mechanism.

  As another example of the present invention, a cooling space of a building is divided into a cooling compartment and a non-cooling compartment by a plurality of partitions, and at least one temperature stratified cooling system is installed in the cooling compartment.

  As another example of the present invention, in the cooling compartment, the partitions reach the non-cooling space near the boundary from the floor surface of the cooling space, the partitions adjacent to each other are airtightly connected, and these partitions are connected to the floor surface of the cooling space. Airtightly connected to the wall.

  As another example of this invention, the wind speed of the cooling air supplied from the blower outlet of an air supply duct exists in the range of 0.1-1.5 m / s.

  As another example of the present invention, the air conditioner is a package type air conditioner.

  According to the temperature stratified cooling system of the present invention, the outdoor unit of the air conditioner located in the non-cooling space, the indoor unit connected to the outdoor unit by the refrigerant pipe, and the cooling air supplied from the indoor unit are cooled. The cooling air is supplied to the cooling space from the supply air duct and the return air duct for returning the return air from the cooling space to the indoor unit. In addition, it is possible to form a temperature stratification divided into a cooling space in the range of human existence and a non-cooling space above the existence height range. The thermal stratified cooling system cools only the existence (working) space (cooling space) where humans exist (working activities), so it can greatly reduce the consumption of cooling air compared to the mixed air conditioning system. The return efficiency of the return air from the cooling space lower than that of the non-cooling space is returned to the indoor unit, so that the cooling efficiency can be improved and energy saving can be achieved. The thermal stratified cooling system can be installed not only in new buildings, but also because it is formed from outdoor units and indoor units and ducts and does not require a large area for installation. It can be installed inexpensively in a short construction period without avoiding the production line or changing the layout of the production line in the existing building. The thermal stratification type cooling system can change the layout of the production line as desired while installing the system without impairing the freedom of the layout change of the production line. In the temperature stratified cooling system, the return air intake port of the return air duct is disposed at a predetermined distance from the air supply duct air outlet, so that the air supply duct air outlet and the return air duct air intake port As compared with the case where the air is close to each other, it is possible to prevent the induction of the short circuit in which the cooling air supplied from the air outlet is immediately sucked into the air inlet.

  In the temperature stratified cooling system, the air outlet of the air supply duct is arranged in the vicinity of the floor surface, and the cooling air supplied from the air outlet is arranged by arranging the suction port of the return air duct in the upper part of the cooling space. Can be diffused from the vicinity of the floor surface to the entire cooling space, and the return air diffused in the cooling space can flow into the suction port of the return air duct. In the temperature stratified cooling system, the return air duct suction port is arranged above the cooling space, so that the warm return air located near the boundary between the cooling space and the non-cooling space is not recirculated to the indoor unit. Therefore, the cooling efficiency of the cooling space can be improved as compared with the case of returning warm return air to the indoor unit. In the temperature stratified cooling system, the air outlet of the air supply duct is arranged near the floor, and the inlet of the return air duct is arranged in the middle of the cooling space. In addition, it is possible to reliably prevent the induction of a short circuit in which the cooling air supplied from the air outlet is immediately sucked into the suction port.

The temperature stratified cooling system uses a storage stand that extends in the vertical direction, so that the outdoor unit and the indoor unit can be installed side by side in the vertical direction, and the outdoor unit and the indoor unit are arranged in the horizontal direction. Compared to the case, the installation area of the system does not require a large area, so it can be built without avoiding the production line or changing the layout of the production line in the existing building where the production line is already installed. A system can be installed in the air-conditioned space of things. The thermal stratification type cooling system is configured such that the outdoor unit is located in the non-cooling space near the boundary between the cooling space and the non-cooling space, and the indoor unit is located in the cooling space near the boundary. Can be connected to the machine, the vertical dimension of the system can be made compact and space saving of the system can be realized, and the system can be installed in the air-conditioned space of the building without taking up space .

  The outdoor unit is equipped with a wind direction plate that adjusts the blowing direction of the high-temperature air blown from its outlet, and the temperature stratified cooling system in which the high-temperature air is blown out from the lower part of the uncooled space to the upper part by the wind direction plate Since the high-temperature air blown from the outlet of the outdoor unit is discharged from the lower part of the non-cooling space toward the upper part by the plate, the high-temperature air can be quickly moved to the upper part of the non-cooling space. It is possible to prevent warm air from entering the cooling space without disturbing the stratification near the boundary with the cooling space. In the thermal stratified cooling system, high-temperature air does not enter the cooling space, so the cooling space and the non-cooling space are clearly separated, and the cooling space and existence of human beings in the air conditioning space of the building are present. A temperature stratification divided into an uncooled space above the height range can be reliably formed.

  It has an exhaust mechanism that is installed at the upper part of the uncooled space of the building and exhausts the air in the uncooled space to the outside, and the outdoor unit also has a vertical direction and a horizontal direction of high temperature air by the wind direction plate. The temperature stratified cooling system in which high-temperature air that is adjusted and includes heat exchange exhaust heat from the outdoor unit is blown out toward the exhaust mechanism is used because the high-temperature air is blown out toward the exhaust mechanism of the building by the wind direction plate. The high-temperature air (air including heat exchange exhaust heat) blown out from the air outlet of the machine can be quickly exhausted from the exhaust mechanism to the outside, and the high-temperature air stays in the non-cooling space. High temperature can be prevented. The thermal stratification type cooling system can prevent excessive heating of the non-cooling space due to exhaust heat blown from the outlet of the outdoor unit or heat generation from a place where humans exist. The temperature stratification divided into two can be reliably maintained, and the cooling air and return air in the cooling space are not warmed by the excessively heated air in the non-cooling space, and there is a human presence (work activity) (Work) The cooling state of the space (cooling space) can be maintained.

  The building is installed in a non-cooling space and has an outside air inlet for taking outside air into the non-cooling space, and the outside air is supplied from the outside air inlet to the non-cooling space, while the air in the non-cooling space is taken outdoors from the exhaust mechanism. The temperature stratified cooling system that exhausts can replace the warm air existing in the non-cooled space with the outside air having a lower temperature, and can prevent the air in the non-cooled space from being excessively heated. The thermal stratification type cooling system can prevent excessive heating of the non-cooling space due to the retention of air existing in the non-cooling space, so that the temperature stratification divided into the cooling space and the non-cooling space is reliably maintained. The cooling air and return air in the cooling space are not warmed by the excessively heated air in the non-cooling space, and the cooling of the existence (working) space (cooling space) where humans exist (working activities) The state can be maintained.

  The cooling space of a building is divided into a cooling compartment and a non-cooling compartment by a plurality of partitions, and the temperature stratified cooling system in which at least one temperature stratified cooling system is installed in the cooling compartment can be kept cool by the partitions. Since it can be divided into a cooling zone where necessary people are present and a non-cooling zone where there is no person who does not need cooling maintenance, the cooling load and the non-cooling zone can be separated by not cooling the heat load of the non-cooling zone. Compared with the case where cooling air is supplied to both sections, the consumption of operating energy of the air conditioner can be suppressed to the minimum amount necessary for human activities, and further energy saving can be achieved.

  In the cooling compartment, these partitions reach the non-cooling space near the boundary from the floor surface of the cooling space, adjacent partitions are airtightly connected, and these partitions are airtightly connected to the floor surface and the wall surface of the cooling space. The thermal stratified cooling system has a partition that reaches the non-cooling space near the boundary from the floor of the cooling space, thereby preventing cooling air and return air from leaking from the cooling compartment to the non-cooling compartment. Compared to the case where a gap is formed between the partitions or between the partition and the floor surface or wall surface by connecting the partitions airtight and the partition between the floor surface and the wall surface. Leakage of cooling air to the non-cooling compartment can be prevented. The thermal stratification type cooling system ensures that the cooling and non-cooling air is not leaked from the cooling compartment to the non-cooling compartment, so that the temperature stratification divided into the cooling space and the non-cooling space is reliably maintained in the cooling compartment. It is possible to maintain the cooling state of the existence (working) space (cooling space) where humans exist (working activities).

  The temperature stratified cooling system in which the wind speed of the cooling air supplied from the outlet of the air supply duct is in the range of 0.1 to 1.5 m / s supplies the cooling air at a speed higher than the above range. Compared with the case where cooling air is supplied at a speed slower than the above range, the cooling air is supplied to the cooling space at the wind speed from the air outlet of the air supply duct, so that the cooling air and return air in the cooling space are supplied. The turbulence of the airflow can be prevented, and the stagnation of the cooling air and the return air in the cooling space can be prevented. The thermal stratification type cooling system does not disturb the cooling space or return air flow, and does not stagnate the cooling space or return air. The cooling state of the existence (working) space (cooling space) where humans exist (working activities) can be maintained.

Temperature stratified cooling system air conditioner Ru package type air conditioner der is to use a package type air conditioner as air conditioners, building applications (e.g., if the manufacturing plant, Ya size of production to things or production line It is possible to select and use a packaged air conditioner model corresponding to the length, the type of machine installed in the production line, etc.) and the heat load generated according to the size of the air conditioning space. This system can be used for buildings of any use that are equipped.

The side view inside a manufacturing factory (building) which installed the temperature stratification type cooling system shown as an example. The top view inside the manufacturing factory of FIG. 1 which installed the temperature stratification type cooling system. The perspective view of a temperature stratification type cooling system. The side view of a temperature stratification type cooling system. The side view inside a manufacturing factory in operation of a temperature stratification type cooling system. The side view which shows the temperature distribution inside the manufacturing factory of FIG. 1 in operation | movement of a temperature stratification type cooling system. The figure which shows the vertical temperature distribution of the cooling space of a manufacturing factory in operation | movement of a temperature stratification type cooling system. The side view which shows another example inside a manufacturing factory (building) in operation | movement of a temperature stratification type cooling system. The top view inside the manufacturing factory of FIG. 8 which installed the temperature stratification type cooling system. The figure which shows an example of the partition provided in the manufacturing factory. The side view which shows the temperature distribution inside the manufacturing factory of FIG. 8 during operation | movement of a temperature stratification type cooling system.

  The temperature stratified cooling system according to the present invention will be described in detail with reference to the accompanying drawings such as FIG. 1 which is a side view of the inside of the manufacturing factory 11A (building) where the temperature stratified cooling system 10 shown as an example is installed. It is as follows. 2 is an internal top view of the manufacturing factory 11A of FIG. 1 in which the temperature stratified cooling system 10 is installed, and FIG. 3 is a perspective view of the temperature stratified cooling system 10. FIG. 4 is a side view of the temperature stratified cooling system 10. 1 and 2, illustration of various production lines installed in the production factory 11A is omitted. In FIG. 2, illustration of the ceiling 15 (roof) is omitted. In FIG. 3, the vertical direction is indicated by an arrow A, the horizontal direction is indicated by an arrow B, and the front-rear direction is indicated by an arrow C.

  The temperature stratified cooling system 10 is installed in the air-conditioned space of a building having a large air-conditioned space having a high ceiling, and is used when the indoor space of the building is cooled. The temperature stratification type cooling system 10 forms a temperature stratification in the air conditioning space of the building, and the air conditioning space is higher than the cooling space in the presence (work activity) height range of the worker 49 (human) and the existence height range. Separated into non-cooled space. The existence height range of the worker 49 is about 0 m to 1.7 m as a cooling space height at which the worker 49 requires a cool feeling. The division height of the cooling space 16 and the non-cooling space 17 is a height range in which the air of the cooling space 16 and the air of the non-cooling space 17 are mixed with the presence height of the worker 49 of 1.7 m. 1 m to 0.4 m and a range from the floor 29 to about 1.8 m to about 2.1 m.

  As a building having a large air-conditioned space, there are a manufacturing factory 11A having a manufacturing line, a gymnasium, a hall, and the like that require a high free space. The temperature stratified cooling system 10 will be described taking the manufacturing factory 11A as an example. In FIG. 2, two temperature stratified cooling systems 10 are installed in the manufacturing factory 11A. However, the number of the systems 10 is not particularly limited, and the manufacturing factory 11A has the number of the air-conditioned spaces 12 in the manufacturing factory 11A. The number of systems 10 to be installed is determined.

  The manufacturing factory 11A has a floor 13, side walls 14, and a ceiling 15 (roof), and a manufacturing line (not shown) is provided therein. In the approximate center of the ceiling 15 (roof) of the manufacturing factory 11A, an exhaust fan (not shown) (exhaust mechanism) and an exhaust port 18 (exhaust mechanism) for exhausting the air present in the uncooled space 17 of the air-conditioned space 12 to the outside. Exhaust mechanism) is installed. As an exhaust mechanism, in addition to the exhaust fan, a ventilation fan, a ventilation window without power, or the like can be used. The exhaust mechanism may be installed not only at the center of the ceiling 15 but also at a predetermined location of the ceiling 15 (upper part of the non-cooling space 17) and a side wall 14 near the ceiling 15 (upper part of the non-cooling space 17).

  On the side wall 14 extending to the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 in the air-conditioned space 12 of the manufacturing factory 11A, outside air for ventilation inside the manufacturing factory 11A is supplied to the factory 11A. An air supply fan (not shown) (air supply mechanism) for supplying air to the cooling space 16 and the non-cooling space 17 and an outside air intake (not shown) (air supply mechanism) are installed. As the air supply mechanism, in addition to the air supply fan, a ventilation fan or a non-powered ventilation window can be used.

  During the operation of the production line in the manufacturing factory 11A, the supply air fan and the exhaust fan are operated, and the supply air fan supplies the outside air from the outside air inlet to the cooling space 16 and the non-cooling space 17 of the manufacturing factory 11A, and the exhaust fan. As a result, the air in the non-cooling space 17 is exhausted from the exhaust port 18 to the outside.

  The temperature stratified cooling system 10 includes an outdoor unit 21 and an indoor unit 22 of a package type air conditioner 20 (air conditioner), and an air supply duct 23 and a return air duct 24 connected to the indoor unit 22. In the thermal stratification type cooling system 10, by using the packaged air conditioner 20, the use of the manufacturing plant 11A (for example, the size of the manufactured product, the size and length of the manufacturing line, the type of machine installed in the manufacturing line, etc.) It is possible to select and use a model with an appropriate cooling capacity of the packaged air conditioner 20 corresponding to the heat load generated according to the size of the air-conditioned space 12 of the manufacturing factory 11A. The system 10 can be used for a manufacturing factory 11A (building) for any use.

  The outdoor unit 21 and the indoor unit 22 are firmly installed on the storage frame 25 (steel frame) so as not to drop or fall. The storage frame 25 includes first and second mounting portions 26 and 27 and a leg portion 28, and is made by assembling various steel materials such as a frame steel material, a leg steel material, and a suspended steel material. The storage frame 25 has a vertical dimension (height dimension) of about 2 m to 3 m, and extends in the vertical direction from the floor surface 29 of the manufacturing plant 11 </ b> A toward the ceiling 15. 1 and 2, the storage frame 25 is installed near the wall of the manufacturing factory 11A. However, the installation position of the storage frame 25 in the manufacturing factory 11A is not particularly limited, and is stored according to the layout of the manufacturing line of the manufacturing factory 11A. The gantry 25 can be installed at any other location in the manufacturing factory 11A.

  The 1st mounting part 26 is located in the uppermost part of the storage stand 25, and is made of the frame steel materials assembled so that a square may be formed in a horizontal direction. The first mounting portion 26 has a height from the floor surface 29 of about 2 m to 3 m. The second mounting portion 27 is located immediately below the first mounting portion 26, and is a frame steel material assembled so as to form a quadrangle in the horizontal direction and a suspended steel material depending on the frame steel material of the first mounting portion 26. It is made. The leg portion 28 is made by connecting leg steel materials so as to extend downward from the four corners of the first and second placement portions 26 and 27. A reinforcing steel material is connected to the leg portion 28.

  The form of the storage frame 25 is not limited to that shown in the figure, and the outdoor unit 21 and the indoor unit 22 can be installed on another type of storage frame. In addition, although not shown, a plurality of casters (moving parts) can be installed at the lower end of the leg portion 28 so that the storage frame 25 can move the floor surface 29.

  The outdoor unit 21 is mounted on the first mounting portion 26 and is firmly installed on the frame steel material by a fixing bracket. The outdoor unit 21 is located in the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 in the air-conditioned space 12. The outdoor unit 21 only needs to be installed in the non-cooling space 17, and the installation location of the outdoor unit 21 in the non-cooling space 17 is not particularly limited. Further, the outdoor unit 21 is not installed on the storage frame 25 but directly installed on the side wall 14 of the non-cooling space 17 of the manufacturing plant 11A or installed on the frame attached to the side wall 14 of the non-cooling space 17 of the manufacturing plant 11A. May be.

  A wind direction plate 32 that adjusts the blowing direction of the high-temperature air 31 blown from the blower outlet 30 is attached to the outside of the blower outlet 30 of the outdoor unit 21. The wind direction plate 32 is formed of a vertical wind direction plate 32A that adjusts the vertical blowing direction and a horizontal wind direction plate 32B that adjusts the horizontal blowing direction. The vertical wind direction plate 32A is swung in the vertical direction, the horizontal wind direction plate 32B is swung in the horizontal direction, and the vertical blowing direction and the horizontal blowing direction of the high-temperature air 31 blown out from the blower outlet 30 are adjusted. In addition, the horizontal wind direction plate 32B may not be attached to the blower outlet 30, and only the vertical wind direction plate 32A may be attached to the blower outlet 30.

  In the outdoor unit 21, the vertical wind direction plate 32A attached to the air outlet 30 turns upward, the horizontal air direction plate 32B turns sideways, and the air outlet 30 is an exhaust fan installed on the ceiling 15 of the manufacturing plant 11A ( The exhaust mechanism) and the exhaust port 18 (exhaust mechanism). In the outdoor unit 21, the high-temperature air 31 blown out from the blowout port 30 is blown out toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism) (from the lower part to the upper part of the non-cooling space 17). .

  The indoor unit 22 is connected to the outdoor unit 21 by a refrigerant pipe 33. The indoor unit 22 is mounted on the second mounting portion 27 and is firmly installed on the frame steel material or the suspended steel material by a fixing bracket. The indoor unit 22 is located in the cooling space 16 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 in the air-conditioned space 12. In addition, there is no restriction | limiting in particular in the installation location of the indoor unit 22, The indoor unit 22 should just be installed in the predetermined | prescribed location in any one of the cooling space 16 and the non-cooling space 17. FIG. Further, the indoor unit 22 is not installed on the storage frame 25, but is installed directly on the side wall 14 of the cooling space 16 or the non-cooling space 17 of the manufacturing plant 11A, or the side wall of the cooling space 16 or the non-cooling space 17 of the manufacturing plant 11A. 14 may be installed on a gantry attached to 14.

  The indoor unit 22 is disposed directly below the outdoor unit 21 in the storage frame 25. In the storage stand 25, the outdoor unit 21 and the indoor unit 22 are lined up and down. A drain pipe 34 is connected to the indoor unit 22. The drain pipe 34 is connected to the drainage. Although not shown, the indoor unit 22 is turned ON / OFF by a remote controller (controller), and its air volume, cooling temperature, cooling time, and the like are controlled.

  In FIGS. 3 and 4, one outdoor unit 21 and one indoor unit 22 connected to the outdoor unit 21 are installed on the storage frame 25, but the number of outdoor units 21 and the number of indoor units 22 are the same. There is no particular limitation, and two or more outdoor units 21 arranged in the horizontal direction are installed on the first mounting unit 26, and two or more indoor units 22 arranged in the horizontal direction individually connected to the outdoor units 21 are the first. 2 may be installed on the mounting portion 27.

  The air supply duct 23 supplies cooling air 35 supplied from the indoor unit 22 to the cooling space 16. The air supply duct 23 includes an air supply duct base end portion 36 connected to the indoor unit 22, an air supply duct intermediate portion 37 that extends forward from the air supply duct base end portion 36, and extends downward, and a manufacturing plant 11A. And an air supply duct front end portion 38 located in the vicinity of the floor surface 29 of the (cooling space 16). The air supply duct front end portion 38 has a divergent shape so that its area (the cross-sectional area of the airflow passage portion) gradually increases from the air supply duct intermediate portion 37 downward, and the blowing air speed is reduced.

  The air outlet 39 of the cooling air 35 at the front end portion 38 of the air supply duct 23 is disposed near the floor surface 29 (lower part of the cooling space 16) of the manufacturing factory 11A (cooling space 16) and opens toward the floor surface 29. ing. The height L1 of the air outlet 39 of the air supply duct 23 from the floor surface 29 (the distance between the air outlet 39 of the air supply duct 23 and the floor surface 29) is a height that does not become smaller than the opening area of the air outlet 39. It has become.

  The return air duct 24 returns the return air 40 in the cooling space 16 to the indoor unit 22. The return air duct 24 includes a return air duct base end part 41 connected to the indoor unit 22, a return air duct rectification part 42 connected to the return air duct base end part 41 and extending upward, and a return air duct rectification part 42. It has a return air duct intermediate part 43 extending forward and a return air duct front end part 44 spaced apart from the front end part 38 of the air supply duct 23 by a predetermined distance. The return air duct inlet 45 of the return air 40 at the front end portion 44 of the return air duct 24 is disposed upwardly from the air outlet 39 of the air supply duct 23 by a predetermined distance.

  The return air duct suction port 45 is located in the upper part 48 (mixing space) of the cooling space 16 on the boundary 19 side between the cooling space 16 and the non-cooling space 17 and opens toward the floor surface 29. Note that the return air duct suction port 45 may be located in an intermediate portion 47 between the upper portion 48 and the lower portion 46 on the floor surface 29 side of the cooling space 16. The height L2 of the return air duct inlet 45 from the floor 29 (the distance between the inlet 45 of the return air duct 24 and the floor 29) is in the range of 1 m to 2 m, preferably 1.8 m. In the return air duct 24, the return air duct inlet 45 may open not in the floor 29 but in the front-rear direction front, the front-rear direction rear, or the lateral direction.

  FIG. 5 is a side view of the inside of the manufacturing plant 11 </ b> A during operation of the temperature stratified cooling system 10. In FIG. 5, the flow of the cooling air 35 and the return air 40 in the conditioned space 12 is indicated by an arrow F1, and the flow of the high temperature air 16 is indicated by an arrow F2. When a manufacturing operation is started in the manufacturing line of the manufacturing factory 11A, the temperature stratified cooling system 10 is activated by a remote controller. When the system 10 is activated, the outdoor unit 21 and the indoor unit 22 are operated, and the outdoor unit 21 and the indoor unit 22 generate cooling air 35 having a temperature set by the remote controller.

  The cooling air 35 is supplied from the indoor unit 22 to the air supply duct 23 by the fan of the indoor unit 22, and is supplied to the floor surface 29 from the air outlet 39 of the duct 23 through the air supply duct 23. The cooling air 35 supplied toward the floor surface 29 flows while diffusing in the vicinity of the floor surface 29.

  As shown by an arrow F1 in FIG. 5, the cooling air 35 travels from one side wall 14 of the manufacturing factory 11A to the other side wall 14 while cooling the cooling space 16 and also cools the cooling space 16 while cooling the cooling space 16. It moves from the lower part 46 to the upper part 48 through the intermediate part 47 and moves toward the non-cooling space 17. The cooling air 35 toward the boundary 19 between the cooling space 16 and the non-cooling space 17 is prevented from entering the non-cooling space 17 from the cooling space 16 due to the difference in specific gravity with the warm air layer existing in the non-cooling space 17. The cooling space 16 is diffused without flowing into the non-cooling space 17.

  The return air 40 that has cooled the cooling space 16 and absorbed the heat of the cooling space 16 moves toward the storage frame 25 while flowing in the vicinity of the boundary 19 (the upper portion 48 of the cooling space 16). The return air 40 flows into the return air duct 24 from the return air inlet 45 of the return air duct 24, and returns to the indoor unit 22 through the return air duct 24. The return air 40 is changed into cooling air 35 by the indoor unit 22, and the cooling air 35 is supplied again from the air outlet 39 of the air supply duct 23 toward the floor surface 29.

  In the temperature stratified cooling system 10, the air outlet 39 of the air supply duct 23 is disposed in the vicinity of the floor surface 29, and the return air duct inlet 45 of the return air duct 24 is disposed in the upper part 48 of the cooling space 16. Thus, the cooling air 35 supplied from the air outlet 39 can be diffused from the vicinity of the floor surface 29 to the entire cooling space 16, and the return air 40 flowing through the cooling space 16 is returned to the return air duct 24. It can be made to flow into the suction port 45.

  The temperature stratified cooling system 10 arranges the return air duct inlet 45 of the return air duct 24 in the intermediate portion 47 of the cooling space 16, so that the warm air of the return air 40 located in the upper portion 48 of the cooling space 16 is warm. Since the air 40 is not recirculated to the indoor unit 22, the cooling heat generation efficiency in the packaged air conditioner 20 (air conditioner) is maintained at a high efficiency as compared with the case where the warm return air 40 is recirculated to the indoor unit 22. be able to.

  In the temperature stratified cooling system 10, the air outlet 39 of the air supply duct 23 is disposed in the vicinity of the floor surface 29, and the return air duct inlet 45 of the return air duct 24 is disposed in the intermediate portion 47 of the cooling space 16. The air outlet 39 and the return air duct suction port 45 are sufficiently separated from each other, and the induction of the short circuit in which the cooling air 35 supplied from the air outlet 39 is immediately sucked into the return air duct suction port 45 is surely prevented. be able to.

  The wind speed of the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 is in the range of 0.1 to 1.5 m / s. The wind speed of the cooling air 35 is preferably low, and the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 flows slowly in the cooling space 16 due to the low speed. Therefore, the cooling space 16 in the presence (working) height range (living height range) of the worker 49 (human) in the air-conditioning space 12 of the manufacturing factory 11A and the non-existing (working) height range above The temperature stratification divided into the cooling space 17 can be reliably formed.

  When the wind speed of the cooling air 35 exceeds 1.5 m / s, the cooling air 35 becomes a turbulent flow and the airflow in the cooling space 16 is disturbed, and the cooling air 35 and the return air 40 flowing in the cooling space 16 and the non-cooling space. 17 is mixed with the warm air layer, which is the same as the mixed air conditioning system, the boundary 19 between the cooling space 16 and the non-cooling space 17 is not formed, and the cooling space 16 and the non-cooling space 12 in the manufacturing factory 11A are not formed. A temperature stratification divided into the cooling space 17 cannot be formed.

  The temperature stratified cooling system 10 is in comparison with the case where the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 is in the above range and the cooling air 35 is supplied at a speed higher than the above range. The cooling air 35 supplied from the air outlet 39 of the air supply duct 23 can be sufficiently diffused in the cooling space 16, and the turbulence of the cooling air 35 and the return air 40 in the cooling space 16 can be prevented. In addition, the temperature stratification divided into the cooling space 16 and the non-cooling space 17 can be reliably formed in the manufacturing factory 11A. Further, the return air duct 24 of the return air duct 24 is diffused from the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 and the return air 40 after cooling the cooling space 16 to the entire cooling space 16. A flow of the cooling air 35 returning from the suction port 45 to the indoor unit 22 can be created.

  The temperature stratified cooling system 10 has no stagnation of the cooling air 35 and the return air 40 in the cooling space 16 and does not disturb the air flow of the cooling air 35 and the return air 40 in the cooling space 16. The temperature stratification divided into the cooling space 17 can be reliably maintained, and the cooling state of the existence (work) space (living space) (cooling space 16) where the worker 49 (human) exists (work activity) is maintained. can do.

  The high temperature air 31 including the heat exchange exhaust heat blown from the blower outlet 30 of the outdoor unit 21 is regulated in the blow direction by the vertical wind direction plate 32A and the horizontal wind direction plate 32B, and the exhaust fan (exhaust mechanism) It blows out toward the exhaust port 18 (exhaust mechanism). While the production line is in operation, an air supply fan installed on the side wall 14 extending to the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 is operated, and the outside air is supplied from the outside air intake to the cooling space 16 and the non-cooling space. While flowing into the cooling space 17, an exhaust fan installed on the ceiling 15 of the manufacturing factory 11 </ b> A is operated, and warm air in the non-cooling space 17 is exhausted from the exhaust port 18 to the outside. Further, high-temperature air 31 from the air outlet 30 toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism) is exhausted from the exhaust port 18 to the outside.

  In the temperature stratified cooling system 10, the hot air 31 of the outdoor unit 22 is blown out toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism) by the vertical wind direction plate 32A and the horizontal wind direction plate 32B. High temperature air 31 including heat exchange exhaust heat blown out from the air outlet 30 of the outdoor unit 22 can be quickly exhausted from the exhaust port 18 to the outside, and the high temperature air 31 stays in the non-cooling space 17. An excessively high temperature of 17 air can be prevented.

  The temperature stratified cooling system 10 exhausts the air in the non-cooling space 17 from the exhaust port 18 (exhaust mechanism) to the non-cooling space 17 while supplying the outside air from the outside air inlet to the non-cooling space 17. The existing warm air can be replaced with outside air having a lower temperature, and excessively high temperature of the air in the uncooled space 17 can be prevented.

  The temperature stratified cooling system 10 can prevent an excessive increase in the temperature of the air in the non-cooling space 17 due to the high-temperature air 31 blown out from the outlet 30 of the outdoor unit 22, and the air present in the non-cooling space 17 can be prevented. The temperature stratification divided into the cooling space 16 and the non-cooling space 17 can be reliably maintained without disturbing the formed temperature stratification and preventing the temperature increase of the non-cooling space 17 due to staying, and the operator 49 ( The cooling state of the existence (work) space (living space) (cooling space 16) where the human being exists (work activity) can be maintained.

  6 is a side view showing a temperature distribution inside the manufacturing plant 11A of FIG. 1 during operation of the temperature stratified cooling system 10. FIG. 7 shows cooling of the manufacturing plant 11A while the temperature stratified cooling system 10 is operating. 3 is a diagram illustrating a vertical temperature distribution in a space 16. FIG. In the cooling space 16 of the manufacturing factory 11 </ b> A, as shown in FIG. 6, a coldest temperature region having a low temperature is formed from the vicinity of the floor surface 29 to the lower portion 46 of the cooling space 16, and the coldest temperature region is formed in the intermediate portion 47 of the cooling space 16. An intermediate cool temperature region having a slightly higher temperature than the intermediate cool temperature region is formed in the upper portion 48 of the cooling space 16.

  As shown in FIG. 7, the coldest temperature range is a range between the floor surface 29 and about 0.5 m above the floor (from the floor surface 29 to about 0.5 m), and the average temperature is about 18 ° C. The middle temperature range is a range between the lowest temperature range (about 0.5 m above the floor) and about 1.5 m above the floor (from the floor 29 to about 1.5 m), and the average temperature is about 26 ° C. The high and low temperature range is a range between the middle and low temperature range (about 1.5 m above the floor) and about 1.8 m above the floor (from the floor 29 to about 1.8 m), and the average temperature is about 28 ° C.

  In the non-cooling space 17 of the manufacturing factory 11A, the temperature of the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 is low, and the temperature gradually increases from there upward. Further, the high temperature air 31 blown out from the outlet 30 of the outdoor unit 22 is blown out toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism), and the high temperature air 31 is separated from the air layer of the non-cooling space 17. Without being mixed, the hot air 31 flows from the lower side to the upper side of the non-cooling space 17. As can be seen from FIG. 6, the cooling space 16 in the presence (working) height range (living height range) of the worker 49 (human) in the air-conditioned space 12 of the manufacturing factory 11A and the existence (working) height range above. The temperature stratification divided into the non-cooling space 17 is formed.

  In the temperature stratified cooling system 10, the cooling air 35 supplied from the indoor unit 21 is supplied from the air supply duct 23 to the vicinity of the floor 29 of the cooling space 16, so that the air conditioning space of the manufacturing factory 11 </ b> A (building) is provided. 12, the temperature stratification divided into the cooling space 16 in the presence (work) height range of the worker 49 (human) and the non-cooling space 17 above the presence (work) height range can be reliably formed. . Since the temperature stratified cooling system 10 cools only the work space (cooling space 16) where the worker 49 (human) exists (work), the consumption of the cooling air 35 is greatly reduced as compared with the mixed air conditioning system. In addition to energy saving, the cooling efficiency can be improved as compared with the spot type air conditioner.

  The temperature stratified cooling system 10 is composed of the storage frame 25, the outdoor unit 21 and the indoor unit 22 installed on the storage frame 25, and the ducts 23 and 24. There is no need for an installation member for installing a machine or an indoor unit, and there is no need for installation work for installing the outdoor unit 21 or the indoor unit 22 on the side wall 14 (particularly construction for installing the outdoor unit outdoors). Therefore, the system 10 can be installed inexpensively in a short construction period.

  The temperature stratified cooling system 10 uses the storage stand 25 extending in the vertical direction, so that the outdoor unit 21 and the indoor unit 22 can be installed in the storage stand 25 side by side in the vertical direction. Compared with the case where the system 22 is arranged in the horizontal direction, since a large area is not required for the installation location of the system 10, it can be installed not only in the new manufacturing factory 11A (new building) but also in the production line. The system 10 can be installed in the air-conditioned space 12 of the manufacturing factory 11A without avoiding the manufacturing line or changing the layout of the manufacturing line in the existing manufacturing factory 11A (existing building). . The temperature stratified cooling system 10 can change the layout of the production line as desired while installing the system 10 without impairing the freedom of the layout change of the production line.

  In the temperature stratified cooling system 10, the outdoor unit 22 is positioned in the non-cooling space 17 near the boundary 19 between the cooling space 16 and the non-cooling space 17, and the indoor unit 21 is positioned in the cooling space 16 near the boundary 19. The outdoor unit 21 and the indoor unit 22 can be connected by the short refrigerant pipe 33, the vertical dimension of the system 10 can be made compact, and the space saving of the system 10 can be realized. The system 10 can be installed in the air-conditioned space 12 of the manufacturing factory 11A (building).

  FIG. 8 is a side view showing another example of the inside of the manufacturing factory 11B (building) during the operation of the temperature stratified cooling system 10, and FIG. 9 shows the manufacturing of FIG. 8 in which the temperature stratified cooling system 10 is installed. It is a top view inside the factory 11B. 10 is a view showing an example of the partition 50 provided in the manufacturing factory 11B. FIG. 11 is a side view showing the temperature distribution inside the manufacturing factory 11B of FIG. 9 during operation of the temperature stratified cooling system 10. As shown in FIG. is there.

  8 is divided into a plurality of cooling sections 51 (working areas) and a non-cooling section 52 (non-working areas) by a plurality of partitions 50 having the same vertical length L3 (see FIG. 10). Has been. In the manufacturing factory 11B, the partitions 50 are connected in the front-rear direction and the lateral direction, and two cooling sections 51 surrounded by the side wall 14 of the factory 11B and the partitions 50 are formed.

  The cooling section 51 is an area where a worker 49 (human) is resident for work during operation of the production line, and the non-cooling section 52 is an area where the worker 49 is not resident such as a passage or a material storage place. 8 and 9, two cooling sections 51 are made in the manufacturing factory 11B, but there may be three or more cooling sections 51 in the manufacturing factory 11B. As the partition 50, a transparent acrylic material or a glass building material can be used.

  These partitions 50 reach the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 from the floor surface 29 of the cooling space 16. The vertical length L3 (height from the floor 29) of the partitions 50 is about 2 m to 2.3 m. In these partitions 50, as shown in FIG. 10, the adjacent partitions 50 are hermetically connected so that there is no gap between the adjacent partitions 50, and the partition 50 and the floor 29 are separated from each other. The partition 50 is airtightly connected (fixed) to the floor 29 so that no gap is formed in the wall 50, and the partition 50 is not formed between the partition 50 and the wall surface of the side wall 14. Is airtightly connected (fixed) to the wall surface. Opening and closing between the cooling compartment 51 and the non-cooling compartment 52 is performed by opening and closing the door 53 (operator entrance / exit) of the partition 50.

  The manufacturing factory 11B of FIG. 8 has the floor 13, each side wall 14, and the ceiling 15 (roof) like that of FIG. 1, and the manufacturing line which is not shown in figure is installed in the inside. An exhaust fan (not shown) (exhaust mechanism) and an exhaust port 18 (exhaust mechanism) for exhausting the air present in the uncooled space 17 of the air-conditioned space 12 to the outside are provided at the approximate center of the ceiling 15 (roof) of the manufacturing factory 11B. Exhaust mechanism) is installed. On the side wall 14 extending to the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 of each cooling section 51, the cooling space 16 including the cooling sections 51 and the non-cooling sections 52 of the manufacturing plant 11B and the non-cooling space An air supply fan (not shown) (air supply mechanism) for supplying outside air to the cooling space 17 and an outside air inlet (not shown) (air supply mechanism) are installed.

  During operation of the production line in each cooling section 51 of the manufacturing factory 11B in FIG. 8, the supply air fan and the exhaust fan are operated, and the cooling fan 51 and the non-cooling section 52 of the manufacturing factory 11B are operated from the outside air inlet by the supply air fan. The outside air is supplied to the cooling space 16 and the non-cooling space 17 including the air, and the air in the non-cooling space 17 is exhausted to the outdoors from the exhaust port 18 by the exhaust fan.

  In these cooling sections 51, a temperature stratified cooling system 10 is installed. Since the temperature stratified cooling system 10 is the same as that installed in the manufacturing factory 11A of FIG. 1, the same reference numerals as those in FIGS. 3 and 4 are attached, and the description of FIGS. The detailed description of is omitted. Although two temperature stratified cooling systems 10 are installed in each cooling section 51, one or three or more systems 10 may be installed in each cooling section 51.

  The temperature stratification type cooling system 10 forms a temperature stratification in those cooling sections 51 of the manufacturing factory 11B, and the cooling section 51 is a cooling space within the range of the presence (working) of the worker 49 (human) (working height range). 16 and an uncooled space 17 above the existence (working) height range. The temperature stratified cooling system 10 includes an outdoor unit 21 and an indoor unit 22 of a package type air conditioner 20 (air conditioner), and an air supply duct 23 and a return air duct 24 connected to the indoor unit 22. The outdoor unit 21, the indoor unit 22, the air supply duct 23, and the return air duct 24 are the same as those in FIGS. The outdoor unit 21 and the indoor unit 22 are firmly installed on a storage frame 25 (steel frame). The storage frame 25 is the same as that shown in FIGS.

  After the temperature stratified cooling system 10 is activated, the cooling air 35 generated by the outdoor unit 21 and the indoor unit 22 is supplied from the indoor unit 22 to the air supply duct 23 by the fan of the indoor unit 22. The air is supplied from the air outlet 39 of the air supply duct 23 toward the floor surface 29 of each cooling section 51. The cooling air 35 supplied toward the floor surface 29 flows while diffusing in the vicinity of the floor surface 29.

  As shown by an arrow F <b> 1 in FIG. 8, the cooling air 35 is directed to the partition 50 from one side wall 14 of the manufacturing factory 11 </ b> A while cooling the cooling space 16, and a lower portion 46 of the cooling space 16 while cooling the cooling space 16. To the upper part 48 through the intermediate part 47 and toward the non-cooling space 17. The cooling air 35 toward the boundary 19 between the cooling space 16 and the non-cooling space 17 is prevented from entering the non-cooling space 17 from the cooling space 16 due to the difference in specific gravity with the warm air layer existing in the non-cooling space 17. The cooling space 16 is diffused without flowing into the non-cooling space 17.

  The return air 40 that has cooled the cooling space 16 and absorbed the heat of the cooling space 16 moves toward the storage frame 25 while flowing in the vicinity of the boundary 19 (the upper portion 48 of the cooling space 16). The return air 40 flows into the return air duct 24 from the return air inlet 45 of the return air duct 24, and returns to the indoor unit 22 through the return air duct 24. The return air 40 is changed to cooling air 35 by the indoor unit 22, and the cooling air 35 is supplied again from the air outlet 39 of the air supply duct 23 toward the floor surface 29 of each cooling section 51.

  In each cooling section 51, the return air duct 24 is diffused throughout the cooling space 16 from the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 and the return air 40 after cooling the cooling space 16. The flow of the cooling air 35 returning to the indoor unit 22 from the return air duct suction port 45 is created. The wind speed of the cooling air 35 supplied from the air outlet 39 of the air supply duct 23 is in the range of 0.1 to 1.5 m / s. The reason why the wind speed of the cooling air 35 is in the above range is as described above.

  High-temperature air 31 including heat exchange exhaust heat blown from the outlet 30 of the outdoor unit 21 is exhausted from the outlet 30 by the vertical wind direction plate 32A and the horizontal wind direction plate 32B and the exhaust port 18 (exhaust mechanism). It is blown out towards. While the production line is in operation, an air supply fan installed on the side wall 14 of each cooling section 51 extending to the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 is operated, and outside air is drawn from the outside air inlet. While flowing into the cooling space 16 and the non-cooling space 17, an exhaust fan installed on the ceiling 15 (roof) of the manufacturing factory 11 </ b> B is operated, and the air in the non-cooling space 17 is exhausted from the exhaust port 18 to the outside. Further, high-temperature air 31 directed from the outlet 30 of the outdoor unit 21 toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism) is exhausted from the exhaust port 18 to the outside.

  In the cooling space 16 of each cooling section 51 of the manufacturing factory 11B, as shown in FIG. 11, a coldest temperature region having a low temperature is formed from the vicinity of the floor surface 29 to the lower portion 46 of the cooling space 16, and an intermediate portion 47 of the cooling space 16 is formed. In addition, an intermediate cool temperature region having a temperature slightly higher than the coolest temperature region is formed, and a high cool temperature region having a temperature slightly higher than the intermediate cool temperature region is formed in the upper portion 48 of the cooling space 16. The range and average temperature of the coldest temperature region, the intermediate temperature region, and the high temperature region are the same as those in the manufacturing factory 11A of FIG. 1 (incorporation of FIG. 7).

  In the non-cooling space 17 including the cooling compartments 51 and the non-cooling compartments 52 of the manufacturing factory 11B, the temperature of the non-cooling space 17 in the vicinity of the boundary 19 between the cooling space 16 and the non-cooling space 17 is low, and it goes upward from there. As the temperature increases. Further, the high temperature air 31 blown out from the outlet 30 of the outdoor unit 21 in each cooling section 51 is blown out toward the exhaust fan (exhaust mechanism) and the exhaust port 18 (exhaust mechanism), and the high temperature air 31 is uncooled space. The high-temperature air 31 flows from the lower side to the upper side of the non-cooling space 17 without being mixed with the 17 air. As can be seen from FIG. 11, the cooling space 16 and the existence (working) height of the existence (working) height range (living height range) of the worker 49 (human) in the cooling space 51 of each cooling section 51 of the manufacturing factory 11B. The temperature stratification divided into the non-cooling space 17 above the range is formed.

  The temperature stratified cooling system 10 installed in the manufacturing factory 10B shown in FIGS. 8 and 9 has the same effect as the temperature stratified cooling system 10 installed in the manufacturing factory 10A shown in FIGS. It has the following effects. In the temperature stratified cooling system 10, the cooling space 16 of the manufacturing plant 11 </ b> B is divided into a cooling compartment 51 and an uncooled compartment 52 by a plurality of partitions 50, and the temperature stratified cooling system 10 is installed in the cooling compartment 51. Therefore, the partition 50 can be divided into a cooling section 51 where there is an operator 49 (human) that needs cooling and a non-cooling section 52 where there is no worker 49 that does not need cooling. Compared with the case where the cooling air 35 is supplied to both the cooling section 51 and the non-cooling section 52 by not cooling the heat load, the operating energy consumption of the packaged air conditioner 20 (air conditioner) is reduced by the worker 49. In addition, the heat generated by the activity of the production line can be suppressed to the minimum necessary amount for cooling, and further energy saving in the system 10 can be achieved.

  In the temperature stratified cooling system 10, the partition 50 reaches the non-cooling space 17 in the vicinity of the boundary 19 from the floor surface 29 of the cooling space 16, so that the partition 50 serves as a barrier, and cooling air from the cooling compartment 51 to the non-cooling compartment 52. 35 and the return air 40 can be prevented from leaking out. Further, since the partitions 50 are airtightly connected and the partition 50 is airtightly connected to the floor surface 29 and the wall surface, a gap is formed between the partition 50 or the partition 50 and the floor surface 29 or the wall surface. Compared with the case where it cools, the leakage of the cooling air and the return air 40 from the cooling section 51 to the non-cooling section 52 can be prevented.

  The temperature stratified cooling system 10 prevents the cooling air 35 and the return air 40 from leaking from the cooling compartment 51 to the non-cooling compartment 52 by the partition 50, and is divided into the cooling space 16 and the non-cooling space 17 in the cooling compartment 51. Therefore, the temperature stratification can be reliably maintained, and the cooling state of the existence (work) space (cooling section 16) where the worker 49 (human) is present (work) can be reliably maintained.

10 Temperature stratified cooling system 11A Manufacturing factory (building)
11B Manufacturing factory (building)
12 Air-conditioned space 13 Floor 14 Side wall 15 Ceiling (roof)
16 Cooling space 17 Non-cooling space 18 Exhaust port 19 Boundary 20 Package type air conditioner 21 Outdoor unit (heat pump part of package type air conditioner)
22 Indoor unit (cooling air blower of package type air conditioner)
Reference Signs List 23 Air supply duct 24 Return air duct 25 Storage stand 26 First mounting portion 27 Second mounting portion 28 Leg portion 29 Floor surface 30 Air outlet (exhaust heat outlet portion of outdoor unit)
31 High-temperature air 32 Wind direction plate 32A Vertical wind direction plate 32B Horizontal wind direction plate 33 Refrigerant piping 34 Drain piping 35 Cooling air 36 Air supply duct base end portion 37 Air supply duct intermediate portion 38 Air supply duct front end portion 39 Air outlet 40 Return air 41 Return air duct base end part 42 Return air duct rectification part 43 Return air duct middle part 44 Return air duct tip part 45 Return air duct inlet 46 Lower part 47 Middle part 48 Upper part 49 Worker (human)
50 Partitions 51 Cooling compartment 52 Non-cooling compartment 53 Door (operator entrance / exit)

Claims (8)

A temperature stratification is formed in the air-conditioned space of a building having a large air-conditioned space with a high ceiling that requires cooling, and the air-conditioned space is placed in a cooling space in the range of human existence and above the existing height range. In a temperature stratified cooling system that divides it into an uncooled space,
The temperature stratified cooling system includes a first mounting portion positioned at the top, a second mounting portion positioned immediately below the first mounting portion, and legs extending downward from the first and second mounting portions. a storage rack extending vertically from the floor of the building has bets, the loaded on the first loading portion of the housing frame and the non-cooling in the vicinity of the boundary between the cooling space and the non-cooling space An outdoor unit of an air conditioner that is located in a space and has a blow-out port for blowing out high-temperature air; and the cooling space and the non-cooling space that are placed on the second mounting portion of the storage frame and below the outdoor unit And an indoor unit of an air conditioner connected to the outdoor unit by a refrigerant pipe and cooling air connected to the indoor unit and supplied from the indoor unit to the cooling space. An air supply duct for supplying air, and the cooling unit connected to the indoor unit And a return air duct for recirculating gas air indoor machine,
A cooling air outlet at the front end of the air supply duct is disposed near the floor surface of the cooling space and opens toward the floor surface, and a return air intake port at the front end of the return air duct is provided. The air supply duct is disposed at a predetermined distance upward from the air outlet of the air supply duct, and is positioned above the cooling space on the boundary side between the cooling space and the non-cooling space, toward the floor surface. Thermally stratified cooling system characterized by being open .   The said outdoor unit is provided with the wind direction board which adjusts the blowing direction of the high temperature air blown from the blower outlet, The said high temperature air is blown toward the upper part from the lower part of the said non-cooling space by the said wind direction board. 2. The temperature stratified cooling system according to 1.   The building has an exhaust mechanism that is installed in an upper part of the non-cooling space and exhausts air in the non-cooling space to the outside. In the outdoor unit, the wind direction plate causes the hot air to be blown in the vertical direction. The temperature stratified cooling system according to claim 2, wherein a lateral blowing direction is adjusted, and the high-temperature air is blown toward the exhaust mechanism.   The building has an outside air inlet that is installed in the non-cooling space and takes outside air into the non-cooling space. In the temperature stratified cooling system, outside air is supplied from the outside air inlet to the non-cooling space. However, the temperature stratified cooling system according to claim 3, wherein the air in the non-cooling space is exhausted to the outside from the exhaust mechanism. Cooling space of the buildings, the plurality of partitions is divided into the cooling compartment and a non-cooled zone, at least one temperature stratified cooling system, claims 1 is installed in the cooling compartment one of claims 4 temperature stratified cooling system according to any.   In the cooling compartment, the partitions reach the non-cooling space in the vicinity of the boundary from the floor surface of the cooling space, and the adjacent partitions are hermetically connected to each other, and the partitions are connected to the floor surface and the wall surface of the cooling space. The temperature-stratified cooling system according to claim 5, which is hermetically connected. The sheet velocity of the cooling air vapor is the air supply from the air outlet duct, the temperature stratification cooling system according to claims 1 to either claim 6 is in the range of 0.1~1.5m / s.   The temperature stratified cooling system according to any one of claims 1 to 7, wherein the air conditioner is a package type air conditioner.