Air conditioning and ventilation system

Abstract

We provide an air conditioning and ventilation system that simplifies application to buildings. [Solution] The air conditioning and ventilation system comprises a heat-shielding and rectifying plate located below the roof or ceiling of a building and defining an exhaust flow path space between itself and the roof or ceiling, the heat-shielding and rectifying plate configured to communicate the air-conditioned space below the heat-shielding and rectifying plate within the building with the exhaust flow path space, and an outside air processing air conditioner that processes outside air to produce conditioned air and mechanically supplies the produced conditioned air, the outside air processing air conditioner having an air-conditioned air outlet located facing the air-conditioned space, wherein the exhaust port that communicates the exhaust flow path space with the outside of the building is located above the heat-shielding and rectifying plate.

Description

Technical Field

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[0001] The present invention relates to an air-conditioning and ventilation system.

Background Art

[0002] Patent Document 1 discloses a natural ventilation system that performs natural ventilation in a ventilation target space. The natural ventilation system is configured to take in air from the external space by an outdoor unit for air conditioning, and to blow the conditioned air into the ventilation target space through a floor space. Further, the natural ventilation system is configured to cause the conditioned air in the ventilation target space to flow into the external space through a ceiling space by an exhaust fan.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The natural ventilation system of Patent Document 1 requires a floor space and a ceiling space. Therefore, in order to apply the natural ventilation system of Patent Document 1 to an existing building, a large-scale renovation of the building is required.

[0005] One aspect of the present invention aims to provide an air-conditioning and ventilation system that simplifies the application to a building. <A

Means for Solving the Problems

[0006] An air conditioning and ventilation system according to one aspect of the present invention comprises a heat-shielding and rectifying plate located below the roof or ceiling of a building and defining an exhaust flow path space between the heat-shielding and rectifying plate and the roof or ceiling, configured to communicate the air-conditioned space below the heat-shielding and rectifying plate within the building with the exhaust flow path space; and an outside air processing air conditioner that processes outside air to produce conditioned air and mechanically supplies the produced conditioned air, the outside air processing air conditioner having an air-conditioned air outlet located facing the air-conditioned space, wherein an exhaust port that communicates the exhaust flow path space with the outside of the building is located above the heat-shielding and rectifying plate. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a cross-sectional side view showing an example of the configuration of a building equipped with the air conditioning and ventilation system according to the embodiment. [Figure 2] Figure 2 is a cross-sectional side view showing a part of the building as seen from a different direction than in Figure 1. [Figure 3] Figure 3 is a plan view of the interior of the building shown in Figure 1, seen from above. [Figure 4] Figure 4 is a cross-sectional side view showing an example of the configuration of the communication holes in the heat shield rectifier plate shown in Figure 1. [Figure 5] Figure 5 is a cross-sectional side view showing another example of the configuration of the communication holes in the heat shield rectifier plate shown in Figure 1. [Figure 6] Figure 6 is a schematic diagram showing an example of the configuration of the outdoor air treatment air conditioning unit shown in Figure 1. [Figure 7] Figure 7 is a side view showing an example of the configuration of the air outlet in Figure 1. [Modes for carrying out the invention]

[0008] Illustrative embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are all comprehensive or specific examples. Among the components in the following embodiments, those components that are not described in the independent claim representing the highest-level concept will be described as optional components. The figures in the accompanying drawings are schematic and not necessarily strictly illustrative. In each figure, substantially identical components are denoted by the same reference numerals, and redundant explanations may be omitted or simplified.

[0009] Figure 1 is a cross-sectional side view showing an example of the configuration of a building 1 equipped with an air conditioning and ventilation system 100 according to the embodiment. Figure 2 is a cross-sectional side view showing a part of the building 1 viewed from a different direction than Figure 1. Figure 2 is a cross-sectional side view passing through the top of the building 1. Figure 3 is a plan view of the interior of the building 1 in Figure 1, viewed from above. In the drawings, directions X and Y are horizontal directions along the ground and perpendicular to each other. Direction Z is perpendicular to directions X and Y and is an upward direction from the ground.

[0010] In this embodiment, however not limited, building 1 is a building in which one indoor space 2 contained within the building is large. The indoor space 2 may have large dimensions both horizontally and vertically. In order to obtain the air conditioning effect of the air conditioning and ventilation system 100, it is preferable that building 1 has a structure that allows the indoor space 2 to be closed off from the outside environment, rather than a structure that keeps the indoor space 2 open to the outside environment at all times. Examples of building 1 may include livestock barns, stables, warehouses, factories, maintenance sheds, halls, gymnasiums, indoor sports fields, and indoor arenas.

[0011] The air conditioning and ventilation system 100 is a system that supplies conditioned air, generated by treating outside air, to the indoor space 2 within a building 1. The air conditioning and ventilation system 100 achieves both air conditioning and ventilation of the indoor space 2. The air conditioning and ventilation system 100 is applicable to buildings 1 where the air in the indoor space 2 is prone to pollution. The air conditioning and ventilation system 100 is applicable not only to buildings 1 before or during construction, but also to existing buildings 1. In this embodiment, the air conditioning and ventilation system 100 is described using an existing livestock barn as an example of building 1.

[0012] As shown in Figures 1 to 3, building 1 includes walls 3 enclosing the indoor space 2 from the sides, a roof 4 enclosing the indoor space 2 from above, and columns 5 supporting the walls 3 and roof 4. Building 1 may also include a framework 6 supporting the roof 4. Building 1 may also include beams connecting the columns 5. The framework 6 can be supported by the columns 5 or beams. The walls 3 and roof 4 form a closable indoor space 2. Building 1 includes openings 3a in the walls 3 and opening / closing mechanisms 3b for opening and closing the openings 3a. Examples of opening / closing mechanisms 3b may include doors, windows, and shutters. Building 1 is capable of closing the indoor space 2. Building 1 accommodates a large number of livestock A in the indoor space 2.

[0013] Building 1 includes a ventilation opening 8 that connects the indoor space 2 to the outside air environment outside Building 1. The ventilation opening 8 serves as an exhaust vent for the air conditioning and ventilation system 100. The ventilation opening 8 is positioned at a relatively high location within the indoor space 2 to communicate with the indoor space 2. The ventilation opening 8 is located in a wall 3 or a roof 4. For example, the ventilation opening 8 may be located at the highest point in the wall 3 or the highest point in the roof 4. In this embodiment, the roof 4 is sloped vertically. Examples of a sloped roof 4 may include a gable roof, a hip roof, and a shed roof. The roof 4 may also be a dome-shaped roof. In this embodiment, the ventilation opening 8 is located at the very top of the roof 4 to enhance the ventilation effect of the indoor space 2.

[0014] The air conditioning and ventilation system 100 includes a heat-shielding rectifier plate 110 positioned in the indoor space 2 and one or more outdoor air handling air conditioners 120. The heat-shielding rectifier plate 110 is positioned below the roof 4 in the indoor space 2. In this embodiment, however, the heat-shielding rectifier plate 110 is positioned to cover the entire portion of the roof 4 facing the indoor space 2 from below. The constituent material of the heat-shielding rectifier plate 110 may be a material with high thermal conductivity or a material with low thermal conductivity. Examples of constituent materials for the heat-shielding rectifier plate 110 may include metals such as iron or aluminum, resin, wood, and gypsum. Figure 2 shows a portion of the heat-shielding rectifier plate 110 extending from the ventilation opening 8 in the direction opposite to direction X.

[0015] The heat-shielding rectifier plate 110 can be directly fixed to the wall 3, roof 4, column 5, framework 6, beam, or two or more of these, or it can be indirectly fixed via a support member such as a bracket. The heat-shielding rectifier plate 110 may also be fixed to a member extending upward from below, such as from the ground. The heat-shielding rectifier plate 110 may be supported from above, below, or from the side.

[0016] In this embodiment, the heat shield rectifier plate 110 includes a plurality of constituent plates 111, and the plurality of constituent plates 111 arranged in a planar manner form the heat shield rectifier plate 110. The edges of the constituent plates 111 may be abutted against the edges of adjacent constituent plates 111 or overlapped so as to leave no gap between them. The edges of the constituent plates 111 may be spaced apart from the edges of adjacent constituent plates 111 so as to leave a gap between them.

[0017] The heat-shielding rectifier plate 110 is positioned with a gap below the roof 4, defining an exhaust flow path space 130 between the heat-shielding rectifier plate 110 and the roof 4. The heat-shielding rectifier plate 110 is positioned below the ventilation opening 8. In this embodiment, since the building 1 is a livestock barn, the roof 4 is exposed to the indoor space 2. Therefore, the heat-shielding rectifier plate 110 defines an exhaust flow path space 130 between the heat-shielding rectifier plate 110 and the roof 4. If the building 1 includes a ceiling board below the roof 4, the heat-shielding rectifier plate 110 may be positioned with a gap below the ceiling board, defining an exhaust flow path space 130 between the heat-shielding rectifier plate 110 and the ceiling board.

[0018] Although not limited, in the present embodiment, the heat insulation rectifying plate 110 inclines so as to extend upward as it approaches the ventilation opening 8. The heat insulation rectifying plate 110 may extend along the roof 4 or the ceiling board. In the present embodiment, the roof 4 is inclined, and since the ventilation opening 8 is located at the uppermost part of the roof 4, the heat insulation rectifying plate 110 inclines along the roof 4. The heat insulation rectifying plate 110 may extend parallel to the roof 4 or may extend at a different inclination angle from the roof 4. When the roof 4 includes a bent portion, the heat insulation rectifying plate 110 may extend with the same curvature as the roof 4 or may extend with a different curvature from the roof 4. For example, the heat insulation rectifying plate 110 may be curved with respect to the flat roof 4 or may be planar with respect to the curved roof 4.

[0019] In the indoor space 2, the heat insulation rectifying plate 110 defines the air-conditioned space 140 below the heat insulation rectifying plate 110. The heat insulation rectifying plate 110 does not close the exhaust flow path space 130 together with the roof 4 but opens a part of the exhaust flow path space 130. The exhaust flow path space 130 communicates with the air-conditioned space 140. The heat insulation rectifying plate 110 opens the exhaust flow path space 130 at the distal end portion 110a located distally from the ventilation opening 8.

[0020] In the present embodiment, since the heat insulation rectifying plate 110 is inclined, the exhaust flow path space 130 is opened at the lower edge 110aa which is the distal end portion 110a located at the lower end in the vertical direction. The lower edge 110aa of the heat insulation rectifying plate 110 does not contact the roof 4 and the wall 3, and the opening 110A is formed between the lower edge 110aa and the roof 4 and the wall 3. Therefore, the air in the air-conditioned space 140 can flow into the exhaust flow path space 130 from below through the opening 110A.

[0021] Although not limited, in the present embodiment, the heat insulation rectifying plate 110 opens the exhaust flow path space 130 at the side edge 110ab which is the distal end portion 110a located horizontally on the side. The side edge 110ab faces the wall 3. The side edge 110ab does not contact the wall 3 and the roof 4, and an opening 110B is formed between the side edge 110ab, the wall 3 and the roof 4. Therefore, the air in the air-conditioned space 140 can flow into the exhaust flow path space 130 from the side through the opening 110B.

[0022] The heat insulation rectifying plate 110 includes a plurality of communication holes 112 penetrating the heat insulation rectifying plate 110. The communication holes 112 penetrate the heat insulation rectifying plate 110 so as to communicate the air-conditioned space 140 with the exhaust flow path space 130. Thereby, the air in the air-conditioned space 140 can flow into the exhaust flow path space 130 through the communication holes 112. Although not limited, in the present embodiment, the shape of the communication holes 112 is a circle, an ellipse or an oval.

[0023] FIG. 4 is a cross-sectional side view showing an example of the configuration of the communication holes 112 of the heat insulation rectifying plate 110 in FIG. 1. FIG. 5 is a cross-sectional side view showing another example of the configuration of the communication holes 112 of the heat insulation rectifying plate 110 in FIG. 1. As shown in FIGS. 4 and 5, the heat insulation rectifying plate 110 may include a guide around the communication holes 112. The heat insulation rectifying plate 110 may include an introduction guide 112a for promoting the inflow of air into the communication holes 112 on the lower surface 110b facing the air-conditioned space 140. The heat insulation rectifying plate 110 may include a derivation guide 112b for promoting the outflow of air from the communication holes 112 on the upper surface 110c facing the exhaust flow path space 130. The heat insulation rectifying plate 110 may include either or both of the introduction guide 112a and the derivation guide 112b around one communication hole 112.

[0024] The introduction guide 112a may have a structure that guides air flowing from bottom to top along the inclined lower surface 110b to the communication hole 112. For example, the introduction guide 112a may have a shape that protrudes downward from the lower surface 110b at a position above the communication hole 112 in the direction in which the heat shield rectifier plate 110 is inclined, as shown in Figure 4, or a shape that is recessed upward from the lower surface 110b at a position below the communication hole 112, as shown in Figure 5. Air flowing from bottom to top along the lower surface 110b is encouraged to flow upward by the introduction guide 112a and can flow into the communication hole 112.

[0025] The outlet guide 112b may have a structure that guides the air flowing out from the communication hole 112 into the exhaust flow path space 130 from bottom to top along the inclined upper surface 110c of the heat shield rectifier plate 110. For example, the outlet guide 112b may have a shape that protrudes upward from the upper surface 110c at a position below the communication hole 112 in the direction in which the heat shield rectifier plate 110 is inclined, as shown in Figure 4, or a shape that is recessed downward from the upper surface 110c at a position above the communication hole 112, as shown in Figure 5. The air flowing out from the communication hole 112 into the exhaust flow path space 130 can be encouraged to flow upward by the outlet guide 112b. The heat shield rectifier plate 110 may include only the introduction guide 112a and exit guide 112b of Figure 4, only the introduction guide 112a and exit guide 112b of Figure 5, or a combination of the introduction guide 112a and exit guide 112b of Figures 4 and 5, around a single communication hole 112.

[0026] As shown in Figure 1, the outdoor air processing unit 120 is configured to produce conditioned air by cooling or heating the outside air and to mechanically supply the produced conditioned air into the indoor space 2. The outdoor air processing unit 120 includes an outdoor air processing unit 121, an outlet 122, and a duct 123. The outdoor air processing unit 121 includes various components for processing the outside air to produce conditioned air and for mechanically supplying the produced conditioned air. In this embodiment, the outdoor air processing unit 121 is located outside the building 1. The air environment inside the indoor space 2 is harsher for the outdoor air processing unit 121 than the outside air environment due to the influence of organic matter such as livestock feed, excrement, and straw, as well as moisture such as drinking water, milk, sweat, and urine. The outdoor air processing unit 121 is isolated from this air environment inside the indoor space 2 by the building 1. This improves the durability of the outside air handling air conditioning unit 121.

[0027] The air outlet 122 is located facing the air-conditioned space 140. In this embodiment, the air outlet 122 is located in the wall 3, but it may be located anywhere inside the air-conditioned space 140. The air outlet 122 is attached to the wall 3. The duct 123 connects the air outlet 122 to the outside air handling air conditioning unit 121. The air outlet 122 or the duct 123 may be located in a hole penetrating the wall 3, or they may be located using an opening in the wall 3 such as a window.

[0028] The outdoor air processing air conditioner 120 can be installed in the building 1 by installing the outdoor air processing air conditioning unit 121 outside the building 1, attaching an outlet 122 or duct 123 to a hole penetrating the wall 3, and connecting the outlet 122 and the outdoor air processing air conditioning unit 121 with the duct 123. Furthermore, in this embodiment, the outdoor air processing air conditioning unit 121 is a single unit that includes the components for air conditioning processing within a single housing. Therefore, the installation of the outdoor air processing air conditioner 120 in the building 1 is simple.

[0029] Figure 6 is a schematic diagram showing an example of the configuration of the outdoor air handling air conditioning unit 121 shown in Figure 1. The outdoor air handling air conditioning unit 121 includes a housing 121A, a refrigerant circuit 121B, and an air supply fan 121C. The refrigerant circuit 121B and the air supply fan 121C are housed within the housing 121A.

[0030] The outside air processing air conditioning unit 121 includes a first inlet 121D for introducing outside air into the housing 121A, and a first outlet 121E for discharging air that has been conditioned by the evaporator 121c included in the refrigerant circuit 121B to the outside of the housing 121A. The first inlet 121D and the first outlet 121E communicate with the evaporator 121c. The supply air fan 121C is interposed in the air passage AP1 that connects the first inlet 121D, the first outlet 121E, and the evaporator 121c. The supply air fan 121C generates a forced flow of air from the first inlet 121D through the evaporator 121c toward the first outlet 121E. The supply air fan 121C is configured to supply air by being driven by a driving force generated by a drive source, and may be an electrically powered fan, for example, driven by an electric motor. The first inlet 121D is open to the outside of the housing 121A. The first outlet 121E is connected to the duct 123 and communicates with the outlet 122 via the duct 123.

[0031] The outside air handling air conditioning unit 121 includes a second inlet 121F that receives outside air into the housing 121A, a second outlet 121G that discharges the outside air, after heat exchange in the condenser 121b included in the refrigerant circuit 121B, to the outside of the housing 121A, and a heat dissipation fan 121H. The second inlet 121F and the second outlet 121G communicate with the condenser 121b. The heat dissipation fan 121H is interposed in an air passage AP2 that connects the second inlet 121F, the second outlet 121G, and the condenser 121b. The heat dissipation fan 121H generates an airflow from the second inlet 121F through the condenser 121b toward the second outlet 121G. The heat dissipation fan 121H is configured to supply air by being driven by a driving force generated by a drive source, and may be an electrically powered fan, for example, driven by an electric motor. The second inlet 121F and the second outlet 121G are open to the outside of the housing 121A.

[0032] The refrigerant circuit 121B includes a compressor 121a, a condenser 121b, an evaporator 121c, an expansion valve 121d, and refrigerant piping 121e. The refrigerant piping 121e connects the compressor 121a, the condenser 121b, the evaporator 121c, and the expansion valve 121d. The refrigerant piping 121e defines a circulation path connecting the compressor 121a, the condenser 121b, the expansion valve 121d, the evaporator 121c, and the compressor 121a in this order. The condenser 121b and the evaporator 121c are heat exchangers.

[0033] The refrigerant inlet of the compressor 121a is connected to the evaporator 121c via a portion of the refrigerant piping 121e. The refrigerant outlet of the compressor 121a is connected to the condenser 121b via a portion of the refrigerant piping 121e. The condenser 121b is connected to the evaporator 121c via a portion of the refrigerant piping 121e. The expansion valve 121d is interposed in a portion of the refrigerant piping 121e that connects the condenser 121b and the evaporator 121c. The refrigerant piping 121e is filled with refrigerant. Both the condenser 121b and the evaporator 121c are arranged to exchange heat between the refrigerant flowing inside and the outside air.

[0034] In the refrigeration cycle of refrigerant circuit 121B, the refrigerant compressed by compressor 121a is discharged toward condenser 121b. In the refrigeration cycle, the following steps are repeated in this order: the compression stroke of the refrigerant by compressor 121a, the condensation stroke of the high-temperature, high-pressure refrigerant by heat exchange with the outside air in condenser 121b, the expansion stroke of the condensed refrigerant by expansion valve 121d, and the evaporation stroke of the expanded refrigerant by heat exchange with the outside air in evaporator 121c. During the condensation stroke, the refrigerant releases heat to the outside air, and during the evaporation stroke, the refrigerant absorbs heat from the outside air. Therefore, refrigerant circuit 121B can function as a refrigeration circuit. On the other hand, when the refrigerant compressed by compressor 121a is discharged toward evaporator 121c, refrigerant circuit 121B operates in the reverse cycle of the refrigeration circuit and can function as a heat pump.

[0035] In this embodiment, however limited, the outside air processing air conditioning unit 121 includes a bypass circuit 121I connected to the refrigerant circuit 121B within the housing 121A. The bypass circuit 121I includes a reheater 121f and refrigerant piping 121g. The refrigerant piping 121g is connected to the portion of the refrigerant piping 121e between the compressor 121a and the condenser 121b, and to the portion of the refrigerant piping 121e between the condenser 121b and the expansion valve 121d. The reheater 121f is interposed in the refrigerant piping 121g. The reheater 121f is a heat exchanger and is located downstream of the evaporator 121c in the direction of airflow in the airflow path AP1 that connects the first inlet 121D, the first outlet 121E, and the evaporator 121c. The reheater 121f suppresses overcooling and dryness of the conditioned air by exchanging heat between the high-temperature, high-pressure refrigerant supplied from the compressor 121a and the conditioned air after it has passed through the evaporator 121c. The bypass circuit 121I may include a reheat valve in the refrigerant piping 121g to regulate the flow rate of the refrigerant to the reheater 121f.

[0036] The outdoor air handling air conditioning unit 121 may include a humidifier 121J within the housing 121A. The humidifier 121J may be located downstream of the reheater 121f in the direction of airflow in the airflow path AP1 that connects the first inlet 121D, the first outlet 121E, and the evaporator 121c. The humidifier 121J prevents the conditioned air from drying out by humidifying the conditioned air after it has passed through the reheater 121f.

[0037] The outdoor air processing unit 121 described above can mechanically supply a large volume of conditioned air. As shown in Figures 1 and 3, the duct 123 extends from the outdoor air processing unit 121 through the wall 3 into the building 1, and then extends horizontally along the wall 3. Multiple outlets 122 are attached to one duct 123. In this embodiment, the internal cross-sectional area of ​​the duct 123 decreases as it moves away from the outdoor air processing unit 121. This equalizes the flow velocity of the conditioned air in the duct 123 and equalizes the flow rate of the conditioned air blown out from the multiple outlets 122. The internal cross-sectional area of ​​the duct 123 may decrease continuously or gradually as it moves away from the outdoor air processing unit 121. The internal cross-sectional area of ​​the duct 123 may also be uniform regardless of the distance from the outdoor air processing unit 121.

[0038] Organic matter such as livestock feed, excrement, and straw is present on the floor of the air-conditioned space 140. To prevent the conditioned air blown out from the outlet 122 from stirring up the organic matter, the outlet 122 and the duct 123 within the air-conditioned space 140 are installed at a position higher than the livestock A. The height of the outlet 122 is preferably such that the conditioned air blown out from the outlet 122 is directed towards the livestock A. For example, if the livestock A is a cow, the height of the outlet 122 may be 2m or more from the floor. The outlet 122 may be configured to have a variable direction of airflow so that the conditioned air blown out from the outlet 122 can be directed towards the livestock A.

[0039] In this embodiment, the outlet 122 has an induced discharge structure, although it is not limited to this. Figure 7 is a side view showing an example of the configuration of the outlet 122 in Figure 1. The outlet 122 includes a support portion 122a, a base portion 122b, an inner cylinder portion 122c, and an outer cylinder portion 122d. The support portion 122a is attached to the duct 123. The base portion 122b has a hemispherical shell shape and is supported by the support portion 122a so as to be able to change its orientation along the spherical surface. The inside of the base portion 122b communicates with the inside of the duct 123 via the support portion 122a. The inner cylinder portion 122c extends from the base portion 122b. The inside of the inner cylinder portion 122c communicates with the inside of the base portion 122b. The outer cylinder portion 122d is positioned surrounding the outer circumference of the inner cylinder portion 122c. The outer cylinder portion 122d has a defined attraction opening 122e between the outer cylinder portion 122d and the inner cylinder portion 122c at its base end toward the base portion 122b. The internal space of the outer cylinder portion 122d merges with the internal space of the inner cylinder portion 122c midway from the base end toward the tip.

[0040] The conditioned air is blown from the duct 123 into the inner cylinder 122c. The conditioned air flowing from the inner cylinder 122c into the outer cylinder 122d draws in ambient air from the induction port 122e, and the conditioned air merges with the drawn air before being blown out from the outer cylinder 122d. This increases the airflow from the outer cylinder 122d and dries the conditioned air through reheating by the drawn air.

[0041] Referring to Figures 1 and 2, the airflow inside Building 1 during cooling by the air conditioning and ventilation system 100 will be explained. The outside air processing unit 121 draws in outside air, processes it, and forcibly supplies the processed conditioned air into the duct 123. The conditioned air is released through the duct 123 to the conditioned space 140 inside Building 1 from multiple outlets 122. Because the outside air processing unit 121 can supply conditioned air at a large volume, the conditioned air supplied by the outside air processing unit 121 can maintain the indoor space 2 in a positive pressure state where the internal pressure of the indoor space 2 is higher than the outside air pressure of Building 1.

[0042] Because the conditioned air is colder than the air present in the conditioned space 140, it pushes the air in the conditioned space 140 upwards. Some of the air pushed upwards flows into the exhaust flow path space 130 through the opening 110A at the lower edge 110aa of the heat shield rectifier plate 110. Some of the air pushed upwards flows into the exhaust flow path space 130 through the opening 110B at the side edge 110ab of the heat shield rectifier plate 110. Some of the air pushed upwards flows into the exhaust flow path space 130 through the communication hole 112 of the heat shield rectifier plate 110.

[0043] Air flowing into the exhaust passage space 130 flows upward towards the ventilation opening 8 along the roof 4 and the heat-shielding rectifier plate 110. Because the indoor space 2 is under positive pressure, the upward airflow towards the ventilation opening 8 is promoted. Furthermore, in this embodiment, since the roof 4 is exposed to the exhaust passage space 130, the air in the exhaust passage space 130 can be heated by radiant heat from the roof 4. This further promotes the upward airflow towards the ventilation opening 8. Ventilation of the conditioned space 140 is possible through a positive pressure atmosphere and natural convection. In this embodiment, since there is no fan at the ventilation opening 8, the exhaust from the ventilation opening 8 is natural exhaust. As a result, the airflow towards the ventilation opening 8 is not disturbed by a fan and remains stable.

[0044] The heat-shielding rectifier plate 110 prevents the heated air in the exhaust flow path space 130 from returning to the conditioned space 140. Furthermore, the heat-shielding rectifier plate 110 prevents the heat from the heated air in the exhaust flow path space 130 from being transferred to the air in the conditioned space 140. This stabilizes the air conditioning state in the conditioned space 140. To improve the heat shielding performance, insulating material may be attached to the heat-shielding rectifier plate 110.

[0045] As described above, the air conditioning and ventilation system 100 enables air conditioning and ventilation of the air-conditioned space 140 within the building 1 with a simple structure. The air conditioning and ventilation system 100 can be installed in an existing building 1 with minimal modifications.

[0046] Although exemplary embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. That is, various modifications and improvements are possible within the scope of the present invention. For example, embodiments to which various modifications have been applied, and forms constructed by combining components from different embodiments are also included within the scope of the present invention.

[0047] For example, the heat shield rectifier plate 110 may include a rectifier guide that rectifies the airflow within the exhaust flow path space 130. The rectifier guide may include grooves, protrusions, or a combination of grooves and protrusions located on the upper surface 110c of the heat shield rectifier plate 110 and extending toward the ventilation opening 8. The rectifier guide may extend along the vertical inclination direction of the heat shield rectifier plate 110 on the upper surface 110c. The grooves may be recesses from the upper surface 110c. The protrusions may be projections that extend from the upper surface 110c. The heat shield rectifier plate 110 itself may include curved portions that form grooves, protrusions, or a combination of grooves and protrusions, and may have, for example, a corrugated shape.

[0048] The shape of the communication holes 112 in the heat shield rectifier plate 110 is circular, elliptical, or oblong in the embodiment, but is not limited thereto. For example, the shape of the communication holes 112 may be slit-shaped. For example, the slit-shaped communication holes 112 may extend in the direction toward the ventilation opening 8, in the direction perpendicular to the direction toward the ventilation opening 8, in the direction of inclination in the vertical direction of the heat shield rectifier plate 110, in the direction perpendicular to the inclination direction, or in the direction of inclination. The slit-shaped communication holes 112 may be straight or may include curved portions. The slit-shaped communication holes 112 may be realized by gaps between the constituent plates 111.

[0049] The heat-shielding rectifier plate 110 may include louvers. Multiple blades included in the louvers may form multiple communication holes 112. The multiple blades may be inclined to guide air passing through the communication holes 112 in a direction toward the ventilation opening 8 or along the upward inclination direction of the heat-shielding rectifier plate 110.

[0050] In this embodiment, a single heat-shielding and rectifying plate 110 is positioned below the roof 4, but two or more heat-shielding and rectifying plates 110 may be positioned vertically. The vertically aligned heat-shielding and rectifying plates 110 may define an exhaust flow path space 130 between them. This creates a smooth exhaust flow path space 130, which can facilitate the airflow within the exhaust flow path space 130. The vertically aligned heat-shielding and rectifying plates 110 may have their side edges 110ab closed to create a duct shape.

[0051] Examples of various aspects of the technology of the present invention are as follows. An air conditioning and ventilation system according to the first aspect of the present invention is a heat-shielding and rectifying plate located below the roof or ceiling of a building and defining an exhaust flow path space between itself and the roof or ceiling, the heat-shielding and rectifying plate configured to communicate the air-conditioned space below the heat-shielding and rectifying plate within the building with the exhaust flow path space, and an outside air processing air conditioner that processes outside air to produce conditioned air and mechanically supplies the produced conditioned air, the outside air processing air conditioner having an air-conditioned air outlet located facing the air-conditioned space, wherein an exhaust port that communicates the exhaust flow path space with the outside of the building is located above the heat-shielding and rectifying plate.

[0052] According to the first embodiment, the outdoor air handling air conditioner mechanically supplies conditioned air generated from the outside air to the conditioned space through the air outlet. As the mechanical supply of air forms an airflow within the conditioned space, the relatively warmer air rises and flows into the exhaust flow channel space from the communication point between the conditioned space and the exhaust flow channel space. The air in the exhaust flow channel space is rectified by the heat shield rectifier plate and flows towards the exhaust port, and is discharged to the outside of the building through the exhaust port. Furthermore, although the air in the exhaust flow channel space may be heated by radiant heat from the roof or ceiling, the heat shield rectifier plate blocks the transfer of heat and radiant heat from the air in the exhaust flow channel space to the air in the conditioned space. Therefore, the conditioned space can be effectively temperature-controlled and ventilated. In addition, if the exhaust port can be configured to be located above the heat shield rectifier plate, existing ventilation openings in the building may be used as exhaust ports, or new exhaust ports may be installed. Therefore, applying an air conditioning and ventilation system to existing buildings is possible and simple, requiring at least the installation of a heat-shielding rectifier and an outside air treatment air conditioner.

[0053] An air conditioning and ventilation system according to a second aspect of the present invention may be configured such that, in the air conditioning and ventilation system according to the first aspect, the heat shield rectifier plate is configured to open the exhaust flow path space at the distal end of the heat shield rectifier plate distal to the exhaust port, and the exhaust flow path space is configured to communicate with the air-conditioned space at the distal end.

[0054] According to the second embodiment, an airflow can be formed in the exhaust flow path space from the distal end of the heat shield rectifier plate toward the exhaust port. A smooth airflow toward the exhaust port can be formed in the exhaust flow path space. Since the exhaust flow path space is open at the distal end of the heat shield rectifier plate, a smooth airflow can be formed from the air-conditioned space toward the exhaust flow path space.

[0055] An air conditioning and ventilation system according to a third aspect of the present invention may be configured such that, in an air conditioning and ventilation system according to the first or second aspect, the heat shield rectifier plate includes a plurality of communication holes that penetrate the heat shield rectifier plate and connect the exhaust flow path space and the air-conditioned space.

[0056] According to the third embodiment, air in the conditioned space can move from below the heat shield and through the heat shield into the exhaust flow path space. Air can be moved into the exhaust flow path space at various positions where the communication holes are located. Air stagnation below the heat shield and the heat shield is prevented, and ventilation is possible throughout the entire conditioned space.

[0057] A fourth aspect of the present invention is an air conditioning and ventilation system according to any one of the first to third aspects, wherein the air outlet is positioned higher than the object to which conditioned air is supplied within the air-conditioned space, and the direction of discharge is configured to be variable.

[0058] According to the fourth embodiment, air can be supplied from above to the object to be air-conditioned. This prevents debris and other materials present on the building's floor from being stirred up and worsening the indoor environment of the air-conditioned space.

[0059] An air conditioning and ventilation system according to a fifth aspect of the present invention may be configured such that, in an air conditioning and ventilation system according to any one of the first to fourth aspects, the heat-shielding rectifier plate is inclined to extend upward as it approaches the exhaust port.

[0060] According to the fifth embodiment, a smooth airflow toward the exhaust port can be formed within the exhaust flow path space.

[0061] An air conditioning and ventilation system according to the sixth aspect of the present invention may be configured such that, in an air conditioning and ventilation system according to any one of the first to fifth aspects, the heat-shielding rectifier plate is inclined along the inclined roof or ceiling.

[0062] According to the sixth embodiment, the height of the exhaust flow path space can be made uniform. This makes it possible to straighten the airflow within the exhaust flow path space.

[0063] An air conditioning and ventilation system according to a seventh aspect of the present invention may be configured such that, in an air conditioning and ventilation system according to any one of the first to sixth aspects, the outside air processing unit includes an outside air processing unit that includes components for generating conditioned air, the outlet, and a duct that connects the outside air processing unit and the outlet, and the outside air processing unit includes a housing, a refrigerant circuit located inside the housing and including a compressor, a condenser, an evaporator, and an expansion valve, an inlet for introducing outside air into the housing, an outlet that discharges conditioned air, which is outside air that has undergone heat exchange with the refrigerant in the evaporator of the refrigerant circuit, to the outside of the housing and is connected to the duct, and an air supply fan located inside the housing that generates a forced flow of air from the inlet through the evaporator to the outlet.

[0064] According to the seventh embodiment, the outdoor air handling air conditioner can be installed in a building by installing an outdoor air handling air conditioning unit, an outlet, and a duct. Therefore, the installation of the outdoor air handling air conditioner becomes simpler.

[0065] An air conditioning and ventilation system according to the eighth aspect of the present invention is an air conditioning and ventilation system according to any one of the first to seventh aspects, wherein the building is a livestock barn, the heat-shielding rectifier plate defines the exhaust flow path space between the roof of the livestock barn and the heat-shielding rectifier plate, the outside air processing air conditioner is located outside the livestock barn, the outlet is located on the wall of the livestock barn above the livestock housed in the barn, and the direction of discharge is configured to be variable.

[0066] According to the eighth aspect, the outdoor air processing unit supplies conditioned air generated from the outside air outside the livestock barn to the conditioned space. The outdoor air processing unit supplies conditioned air to the livestock from above. Although organic matter such as livestock feed, excrement, and straw is present on the floor of the livestock barn, the conditioned air can prevent the organic matter from being stirred up from the floor. Since the outdoor air processing unit is located outside the livestock barn, deterioration of the outdoor air processing unit due to exposure to the organic matter environment can be prevented. The roof of the livestock barn is heated by solar heat, but the heat shield and rectifier plate can prevent the radiant heat from the roof from being transmitted to the conditioned space. When the air in the exhaust flow path space is heated due to the heating of the roof, it becomes easier to form an airflow toward the exhaust port.

[0067] All ordinal numbers, quantities, and other figures used herein are illustrative to specifically illustrate the technology of the present invention, and the present invention is not limited to these illustrative figures. The connection relationships between components are illustrative to specifically illustrate the technology of the present invention, and the connection relationships that realize the functions of the present invention are not limited thereto.

[0068] The scope of the present invention is defined more by the appended claims than by the description in the specification, so that the invention can be implemented in various ways without departing from the scope of its essential features. Therefore, the exemplary embodiments and modifications are illustrative and not limiting. All modifications within the claims and their scope, or equivalents within the claims and their scope, are intended to be encompassed by the claims. [Explanation of symbols]

[0069] 1 Building, 2 Indoor space, 3 Wall, 4 Roof, 8 Ventilation opening (exhaust opening), 100 Air conditioning ventilation system, 110 Heat shield rectifier plate, 110A, 110B Opening, 110a Distal end, 110aa Lower edge, 110ab Side edge, 112 Communication hole, 120 Outdoor air processing air conditioner, 121 Outdoor air processing air conditioning unit, 121A Enclosure, 121B Refrigerant circuit, 121C Supply air fan, 121D First inlet, 121E First outlet, 121a Compressor, 121b Condenser, 121c Evaporator, 121d Expansion valve, 121e Refrigerant piping, 121f Reheater, 122 Outlet, 123 Duct, 130 Exhaust flow path space, 140 Air-conditioned space, A Livestock (subject to air conditioning supply).

Claims

1. A heat shield and rectifier plate located within a building below the roof or ceiling of the building and defining an exhaust flow path space between itself and the roof or ceiling, the heat shield and rectifier plate configured to communicate the air-conditioned space below the heat shield and rectifier plate within the building with the exhaust flow path space, An outdoor air processing air conditioner that processes outside air to produce conditioned air and mechanically supplies the produced conditioned air, comprising an outdoor air processing air conditioner having a conditioned air outlet located facing the space to be air-conditioned, The exhaust port connecting the exhaust passage space and the outside of the building is located above the heat-shielding rectifier plate. An air conditioning and ventilation system comprising a heat-shielding rectifier plate, the heat-shielding rectifier plate, and a plurality of communication holes that penetrate the heat-shielding rectifier plate to connect the exhaust flow path space and the air-conditioned space.

2. The heat shield rectifier plate is configured to open the exhaust flow path space at its distal end distal to the exhaust port, The air conditioning and ventilation system according to claim 1, wherein the exhaust flow path space communicates with the air-conditioned space at its distal end.

3. The air conditioning and ventilation system according to claim 1 or 2, wherein the air outlet is positioned higher than the object to which conditioned air is supplied within the air-conditioned space, and the direction of airflow is variable.

4. The air conditioning and ventilation system according to claim 1 or 2, wherein the heat-shielding rectifier plate is inclined to extend upward as it approaches the exhaust port.

5. The air conditioning and ventilation system according to claim 1 or 2, wherein the heat-shielding rectifier plate is inclined along the inclined roof or ceiling.

6. The aforementioned outdoor air handling air conditioner is An outdoor air processing air conditioning unit including components for generating conditioned air, The aforementioned outlet and, It includes a duct that connects the aforementioned outside air processing air conditioning unit and the aforementioned outlet, The aforementioned outside air processing and air conditioning unit is The casing and A refrigerant circuit located within the aforementioned housing, including a compressor, a condenser, an evaporator, and an expansion valve, An inlet for introducing outside air into the housing, An outlet for discharging conditioned air, which is outside air that has undergone heat exchange with the refrigerant in the evaporator of the refrigerant circuit, to the outside of the housing, the outlet being connected to the duct, The air conditioning and ventilation system according to claim 1, further comprising an air supply fan located within the housing and generating a forced airflow from the inlet through the evaporator to the outlet.

7. The aforementioned building is a livestock barn. The heat-shielding rectifier plate defines the exhaust flow path space between the roof of the livestock shed and the heat-shielding rectifier plate. The aforementioned outside air treatment air conditioner is located outside the livestock barn. The air conditioning and ventilation system according to claim 1, wherein the air outlet is located on the wall of the livestock shed above the livestock housed in the shed and is configured to have a variable direction of airflow.

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