JP2020193785A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system capable of optimizing both of air conditioning capacity and cleaning capacity.SOLUTION: A duct unit (20) includes: a first filter (62) cleaning air in an air passage (A); and an air supply port (61) supplying air that has passed through the first filter (62) to a target space (R). A duct unit (20) includes a plurality of duct modules (M) connected to each other to form the air passage (A). The plurality of duct modules (M) include at least one fan module (70) having auxiliary fans (53, 63).SELECTED DRAWING: Figure 3

Description

The present disclosure relates to an air conditioning system.

There is an air conditioning system that air-conditions a clean room. The air conditioning system disclosed in Patent Document 1 includes a floor-standing air conditioning unit and a duct through which air blown from the air conditioning unit flows. Ducts are placed near or behind the ceiling of the clean room. The air whose temperature is regulated by the air conditioning unit flows inside the duct and is sent to the air supply port. An air purifying filter is provided at the air supply port. The air in which dust and the like are collected by the filter is supplied to the clean room. The air supplied to the clean room is sucked into the air conditioning unit again to control the temperature. In this way, the air conditioning system regulates the temperature of the air in the clean room and purifies the air in the clean room.

Japanese Unexamined Patent Publication No. 2001-241717

In an air conditioning system, the air conditioning capacity of a clean room is largely determined by the air conditioner. On the other hand, the cleanliness of a clean room is largely determined by the circulating flow rate of air flowing through the filter. The circulating flow rate of air depends on the air volume of the fan of the air conditioner. Therefore, the air conditioning system can satisfy the air conditioning capacity required for the clean room, but the air volume of the fan is not sufficient, so that the circulating flow rate of air may be insufficient. In addition, although the circulating air volume can be satisfied, the air conditioning capacity may become excessive. As described above, in the air conditioning system, there are problems that the air conditioning capacity of the clean room becomes excessive and the cleaning capacity of the clean room becomes insufficient.

An object of the present disclosure is to provide an air conditioning system capable of optimizing both air conditioning capacity and cleaning capacity.

The first aspect is an air conditioning system in which a clean room is a target space (R), through which a fan (13) that conveys air in the target space (R) and air conveyed by the fan (13) pass through. An air conditioner (10) having a heat exchanger (14) and an air passage (A) through which air conditioned by the air conditioner (10) flows are formed and arranged in the target space (R). The duct unit (20) includes a first filter (62) that purifies the air in the air passage (A) and air that has passed through the first filter (62). The duct unit (20), which has an air supply port (61) for supplying to the space (R), includes a plurality of duct modules (M) which are connected to each other to form the air passage (A). The plurality of duct modules (M) are characterized by including at least one fan module (50,60,70) having an auxiliary fan (53,63).

The "module" of the "duct module" here means a standardized structural unit for easy assembly and recombination.

In the first aspect, a duct unit (20) is configured by connecting a plurality of duct modules (M) to each other. These duct modules (M) include at least one fan module (50,60,70). Auxiliary fans (53,63) are provided in the fan modules (50,60,70). Therefore, by changing the number of fan modules (50,60,70) connected to the duct unit (20) and the air volume of the auxiliary fan (53,63), the circulating air volume of the target space (R) can be arbitrarily adjusted. It can be changed, and by extension, the cleaning ability of the target space (R) can be optimized.

In a second aspect, in the first aspect, the plurality of duct modules (M) include at least one air supply module (60) having the first filter (62) and the air supply port (61). It is characterized by being.

In the second aspect, the air supply module (60) can be connected to a predetermined position of the duct unit (20). By changing the quantity of the air supply module (60) (that is, the quantity of the first filter) and the performance of the first filter (62), the cleaning capacity of the target space (R) can be optimized.

A third aspect is characterized in that, in the second aspect, the air supply module (60) has the auxiliary fan (63) and also serves as the fan module.

In the third aspect, since the air supply module (60) and the fan module are composed of one module, the number of parts can be reduced.

In a fourth aspect, in any one of the first to third aspects, the plurality of duct modules (M) are at least one suction module having a suction port (51) for sucking air in the target space (R). It is characterized by containing (50).

In the fourth aspect, by arranging the suction module (50) in the duct unit (20), air at a desired position in the target space (R) can be directly sucked into the duct module (M).

A fifth aspect is characterized in that, in the fourth aspect, the suction module (50) has a second filter (52) that purifies the air sucked into the suction port (51).

In the fifth aspect, the air sucked into the suction port (51) of the suction module (50) is cleaned by the second filter (52). By changing the quantity of the suction module (50) (that is, the quantity of the second filter) and the performance of the second filter (52), the cleaning ability of the clean room can be optimized.

A sixth aspect is characterized in that, in the fifth aspect, the suction port (51) is formed on the lower surface of the suction module (50).

In the sixth aspect, the air in the target space (R) is easily sucked into the suction port (51).

A seventh aspect is characterized in that, in any one of the fourth to sixth aspects, the suction module (50) has the auxiliary fan (53) and also serves as the fan module. ..

In the seventh aspect, by providing the suction module (50) with the auxiliary fan (53), the circulating air volume of the target space (R) can be changed, and thus the cleaning capacity of the target space (R) can be optimized. Since the suction module (50) and the fan module (70) are composed of one module, the number of parts can be reduced.

In the eighth aspect, in any one of the first to seventh aspects, the plurality of duct modules (M) are formed with two or more branch ports (41,42,43) for diversion of air. At the same time, it is characterized in that it includes a branch module (40) to which another duct module (M) corresponding to each branch port (41, 42, 43) is connected.

In the eighth aspect, a plurality of branching duct units (20) can be configured by connecting a plurality of duct modules (M) to the branch module (40).

In the ninth aspect, in the eighth aspect, the fan module (50,60,70) is provided at the position of the end portion of the duct unit (20) after branching from the branch module (40). It is characterized by that.

In the ninth aspect, it can be arranged at the end of the branch duct (24) of the duct unit (20).

FIG. 1 is a schematic configuration diagram of an air conditioning system according to an embodiment. FIG. 2 is a plan view of the duct unit. FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 4 is a diagram corresponding to FIG. 3 according to the first modification. FIG. 5 is a diagram corresponding to FIG. 3 according to the second modification. FIG. 6 is a schematic configuration diagram of a ventilation module of the first example according to another embodiment. FIG. 7 is a schematic configuration diagram of a ventilation module of a second example according to another embodiment. FIG. 8 is a schematic configuration diagram of a branch module of the first example according to another embodiment. FIG. 9 is a schematic configuration diagram of a branch module of a second example according to another embodiment. FIG. 10 is a schematic plan view of the air conditioning system according to Reference Example 1. FIG. 11 is a sectional view taken along line XI-XI of FIG. FIG. 12 is a schematic plan view of the air conditioning system according to Reference Example 2. FIG. 13 is a sectional view taken along line XIII-XIII of FIG.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be noted that the following embodiments are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses.

<overall structure>
The air conditioning system (S) is applied to the clean room (R), which is the target space. The air conditioning system (S) regulates the temperature of the air in the clean room (R). The air conditioning system (S) purifies the air in the clean room (R). The air cleanliness required in the clean room (R) of this example is in the range of class 6 to class 8 in the cleanliness class of the ISO1464-1 standard. In other words, the cleanliness class of the US federal standard fed.Std.209E, which is now abolished, is in the range of 1000 to 100,000.

The air conditioning system (S) includes an air conditioner (10) and a duct unit (20) connected to the air conditioner (10).

<Air conditioner>
As shown in FIG. 1, the air conditioner (10) includes a floor-standing air conditioner unit (11) for general air conditioning. The air conditioning unit (11) is installed on the floor (F) along the wall (W) of the clean room (R). The air conditioning unit (11) includes a casing (12), an indoor fan (13), and an indoor heat exchanger (14). The cooling capacity, heating capacity, and air volume of the air conditioning unit (11) are generally fixed.

The casing (12) is formed in a vertically long rectangular parallelepiped shape. The casing (12) includes a front plate (12a) and an upper plate (12b). An air conditioning suction port (15) is formed in the lower part of the front plate (12a). An air conditioning outlet (16) is formed on the upper plate (12b). The air conditioning suction port (15) is open to the clean room (R). A duct unit (20) is connected to the air conditioning outlet (16).

Inside the casing (12), an air conditioning flow path (17) is formed from the air conditioning suction port (15) to the air conditioning outlet (16).

The indoor fan (13) is arranged in the air conditioning flow path (17). The indoor fan (13) carries the air in the clean room (R). Specifically, the indoor fan (13) sucks the air in the clean room (R) from the air conditioning suction port (15). The indoor fan (13) conveys this air and blows it from the air conditioning outlet (16) to the duct unit (20).

The indoor heat exchanger (14) is arranged in the air conditioning flow path (17). The indoor heat exchanger (14) of this example is arranged on the upstream side of the indoor fan (13). The indoor heat exchanger (14) exchanges heat between the refrigerant (heat medium) flowing inside the indoor heat exchanger (14) and the air flowing through the air conditioning flow path (17).

The air conditioner (10) of this example is configured to perform a heat pump type refrigeration cycle. The indoor heat exchanger (14) is connected to, for example, a refrigerant circuit (not shown). A compressor and an outdoor heat exchanger are connected to the refrigerant circuit. The compressor and the outdoor heat exchanger are provided in the outdoor unit (not shown). In the refrigerant circuit, the first refrigeration cycle (cooling cycle) and the second refrigeration cycle (heating cycle) are switched. In the first refrigeration cycle, the refrigerant dissipates heat in the outdoor heat exchanger, and the refrigerant evaporates in the indoor heat exchanger (14). In the second refrigeration cycle, the refrigerant dissipates heat in the indoor heat exchanger (14), and the refrigerant evaporates in the outdoor heat exchanger. In the air conditioning unit (11), the air is cooled by the indoor heat exchanger (14) during the first refrigeration cycle. In the air conditioning unit (11), the air is heated by the indoor heat exchanger (14) during the second refrigeration cycle.

The air conditioner (10) has a first operation of supplying a cooled heat medium (for example, cold water) to the indoor heat exchanger (14) and a heated heat medium (for example, hot water) for the indoor heat exchanger (for example). A method of switching between the second operation supplied to 14) may be used. In this case, in the air conditioning unit (11), the air is cooled by the indoor heat exchanger (14) during the first operation. In the air conditioning unit (11), the air is heated by the indoor heat exchanger (14) during the second operation.

<Overall configuration of duct unit>
The duct unit (20) has a vertically long base duct (21) and a duct main body (22) connected to the base duct (21).

The base duct (21) is located above the air conditioning unit (11). The upstream end of the base duct (21) communicates with the air conditioning outlet (16). The downstream end of the base duct (21) communicates with the inside of the duct body (22).

As shown in FIG. 2, the duct main body (22) of this example includes a main duct (23) extending in the front-rear direction and four branch ducts (24) branching left and right from the main duct (23). .. The four branch ducts (24) are composed of a first branch duct (24A), a second branch duct (24B), a third branch duct (24C), and a fourth branch duct (24D). The first branch duct (24A) extends leftward from the middle portion of the main duct (23), and the second branch duct (24B) extends rightward from the middle portion of the main duct (23). The third branch duct (24C) extends to the left from the front end of the main duct (23), and the fourth branch duct (24D) extends to the right from the front end of the main duct (23).

<Overview of duct module>
The duct body (22) is configured by connecting a plurality of duct modules (M). The plurality of duct modules (M) in this example have two ventilation modules (30), two branch modules (40), four suction modules (50), and four air supply modules (60). .. These quantities are merely examples. The type, quantity, and layout of each duct module (M) are appropriately selected according to the clean room (R) in which the air conditioning system (S) is adopted.

The two ventilation modules (30) are composed of a first ventilation module (30A) and a second ventilation module (30B). The two branch modules (40) are composed of a first branch module (40A) and a second branch module (40B).

Each suction module (50) is provided one in each of the four branch ducts (24). The four suction modules (50) are composed of a first suction module (50A), a second suction module (50B), a third suction module (50C), and a fourth suction module (50D).

Each air supply module (60) is provided one at each end of the four branch ducts (24). The four air supply modules (60) are composed of a first air supply module (60A), a second air supply module (60B), a third air supply module (60C), and a fourth air supply module (60D). ..

<Ventilation module>
The ventilation module (30) is a hollow rectangular parallelepiped duct. A space is formed inside the ventilation module (30) to form a part of the air passage (A) of the duct unit (20). The ventilation module (30) of this example is formed in a horizontally long shape extending in a direction along the ceiling surface (C) of the clean room (R). An inflow port (I) is formed at one end of the ventilation module (30) in the longitudinal direction. An outlet (O) is formed at the other end of the ventilation module (30) in the longitudinal direction. The ventilation module (30) is not arranged with any of the auxiliary fan (53,63), air supply port (61), suction port (51), air supply filter (62), and suction filter (52), which will be described in detail later. .. The ventilation module (30) is a module used only to form the air passage (A).

The inflow port (I) of the first ventilation module (30A) communicates with the base duct (21). The outlet (O) of the first ventilation module (30A) communicates with the inlet (I) of the first branch module (40A). The inflow port (I) of the second ventilation module (30B) communicates with the second branch port (42) of the first branch module (40A). The outlet (O) of the second branch module (40B) communicates with the inlet (I) of the second branch module (40B).

<Branch module>
The branch module (40) is a hollow rectangular parallelepiped duct. A space is formed inside the branch module (40) to form a part of the air passage (A) of the duct unit (20).

The first branch port (41), the second branch port (42), and the third branch port (43) are formed in the first branch module (40A). The first branch port (41) is formed on the left side plate of the first branch module (40A). The second branch port (42) is formed on the right side plate of the first branch module (40A). The third branch port (43) is formed on the front plate of the first branch module (40A).

The first branch port (41) and the second branch port (42) are formed in the second branch module (40B). The first branch port (41) is formed on the left side plate of the second branch module (40B). The second branch port (42) is formed on the right side plate of the second branch module (40B). Unlike the first branch module (40A), the front plate of the second branch module (40B) does not have a third branch port (43).

<Suction module>
The suction module (50) is a hollow rectangular parallelepiped duct. A space is formed inside the suction module (50) to form a part of the air passage (A) of the duct unit (20). The suction module (50) of this example is formed in a horizontally long shape extending in a direction along the ceiling surface (C) of the clean room (R). An inflow port (I) is formed at one end of the suction module (50) in the longitudinal direction. An outlet (O) is formed at the other end of the suction module (50) in the longitudinal direction.

The inflow port (I) of the first suction module (50A) communicates with the first branch port (41) of the first branch module (40A). The inflow port (I) of the second suction module (50B) communicates with the second branch port (42) of the first branch module (40A). The inflow port (I) of the third suction module (50C) communicates with the first branch port (41) of the second branch module (40B). The inflow port (I) of the fourth suction module (50D) communicates with the second branch port (42) of the second branch module (40B).

As shown in FIG. 3, each of the four suction modules (50) has a suction port (51), a suction filter (52) (second filter), and a suction fan (53).

The suction port (51) is formed on the lower surface (bottom surface) of the suction module (50). The suction port (51) opens downward so as to communicate with the clean room (R). A suction filter (52) is provided at the suction port (51). The suction filter (52) covers the entire suction port (51). The suction filter (52) purifies the air sucked from the clean room (R) into the suction module (50). The suction filter (52) collects dust in the air. The suction filter (52) is composed of, for example, a HEPA (High Efficiency Particulate Air) filter.

Three suction fans (53) are arranged inside the suction module (50) of this example. The suction fan (53) sucks air from the clean room (R) through the suction port (51). The air sucked by the suction fan (53) is supplied to the clean room (R) from the air supply port (61).

The suction module (50) has a suction fan (53) which is an auxiliary fan. The suction module (50) also serves as a fan module having an auxiliary fan.

<Air supply module>
The air supply module (60) is a hollow rectangular parallelepiped duct. A space is formed inside the air supply module (60) to form a part of the air passage (A) of the duct unit (20). The air supply module (60) of this example is formed in a horizontally long shape extending along the ceiling surface of the clean room (R). An inflow port (I) is formed at one end of the air supply module (60) in the longitudinal direction. The other end of the air supply module (60) in the longitudinal direction is closed by a side plate. The longitudinal length of the air supply module (60) in this example is longer than the longitudinal length of the suction module (50).

The inflow port (I) of the first air supply module (60A) communicates with the outflow port (O) of the first suction module (50A). The inflow port (I) of the second air supply module (60B) communicates with the outflow port (O) of the second suction module (50B). The inflow port (I) of the third air supply module (60C) communicates with the outflow port (O) of the third suction module (50C). The inlet (I) of the fourth air supply module (60D) communicates with the outlet (O) of the fourth suction module (50D).

As shown in FIG. 3, each of the four air supply modules (60) includes an air supply port (61), an air supply filter (62) (first filter), an air supply fan (63), and a rectifying member (64). ).

The air supply port (61) is formed on the lower surface (bottom surface) of the air supply module (60). The air supply port (61) opens downward so as to communicate with the clean room (R). An air supply filter (62) is provided at the air supply port (61). The air supply filter (62) covers the entire air supply port (61). The air supply filter (62) purifies the air supplied from the air supply module (60) to the clean room (R). The air supply filter (62) collects dust in the air. The air supply filter (62) is composed of, for example, a HEPA (High Efficiency Particulate Air) filter.

One air supply fan (63) is arranged inside the air supply module (60) of this example. The air supply fan (63) is located downstream of the suction port (51) and the suction filter (52) in the air passage (A) of the duct unit (20), and the air supply port (61) and the air supply filter (61). It is located upstream of 62). The air supply fan (63) conveys the air in the air passage (A) and supplies this air to the clean room (R) through the air supply port (61).

The rectifying member (64) is arranged outside the air supply port (61). The rectifying member (64) is formed in the shape of a hollow box flat up and down, and the upper side is open. A plurality of holes (65) are formed on the lower surface of the rectifying member (64). The air that has passed through the air supply port (61) passes through the plurality of holes (65) of the rectifying member (64). As a result, the air supplied to the clean room (R) can be rectified.

The air supply module (60) has an air supply fan (63) which is an auxiliary fan. The air supply module (60) also serves as a fan module having an auxiliary fan.

<Duct module connection structure and peripheral structure>
As shown in FIG. 4, adjacent duct modules (M) are connected to each other by fastening members (80) (for example, bolts and nuts). Specifically, the first seal member (71) is interposed between the adjacent duct modules (M), and for example, the positions of the adjacent inflow port (I) and the outflow port (O) are aligned. In this state, adjacent duct modules (M) are connected by a fastening member (80). As a result, the first seal member (71) is compressed, and it is possible to prevent air from leaking from the gap between the inlet (I) and the outlet (O). The first seal member (71) is made of, for example, rubber packing.

As shown in FIG. 4, the duct body (22) is arranged so as to be slightly separated from the ceiling surface (C). Therefore, if there is a gap between the duct body (22) and the ceiling surface (C), dust may collect in this gap and bacteria may grow in this gap. In this example, a second seal member (72) is interposed between the upper surface of the duct body (22) and the ceiling surface (C). The second seal member (72) is a member that fills the gap and is made of an elastic material.

-Driving operation-
The operation operation of the air conditioning system (S) will be described. When the air conditioning system (S) is operated, the indoor fan (13), the suction fan (53), and the air supply fan (63) are operated. The indoor heat exchanger (14) functions as an evaporator or a radiator.

The air in the clean room (R) flows into the air conditioning flow path (17) from the air conditioning suction port (15) of the air conditioning unit (11). The air in the air conditioning flow path (17) is cooled or heated by the indoor heat exchanger (14). The air whose temperature is regulated by the air conditioning unit (11) flows into the base duct (21) through the air conditioning outlet (16).

The air in the base duct (21) flows upward and then flows into the main duct (23) of the duct body (22). The air in the main duct (23) passes through the first ventilation module (30A) and flows into the first branch module (40A). In the first branch module (40A), air is diverted to the first branch port (41), the second branch port (42), and the third branch port (43).

The air diverted to the first branch port (41) of the first branch module (40A) flows through the first suction module (50A) of the first branch duct (24A). In the first suction module (50A), air is sucked from the clean room (R) into the suction port (51). This air is cleaned by the suction filter (52) and then merges with the air flowing out of the main duct (23). The merged air flows through the first air supply module (60A). The air in the first air supply module (60A) is supplied to the clean room (R) after passing through the air supply port (61) and the rectifying member (64).

The air diverted to the second branch port (42) of the first branch module (40A) flows through the second suction module (50B) of the second branch duct (24B). The subsequent air flow is the same as that of the first branch duct (24A).

The air diverted to the third branch port (43) of the first branch module (40A) passes through the second ventilation module (30B) and flows into the second branch module (40B). In the second branch module (40B), air is diverted to the first branch port (41) and the second branch port (42).

The air diverted to the first branch port (41) of the second branch module (40B) flows through the third suction module (50C) of the third branch duct (24C). The subsequent air flow is the same as that of the first branch duct (24A).

The air diverted to the second branch port (42) of the second branch module (40B) flows through the fourth suction module (50D) of the fourth branch duct (24D). The subsequent air flow is the same as that of the first branch duct (24A).

The air supplied to the clean room (R) is sucked into the air conditioning unit (11) again and supplied to the clean room (R) via the duct unit (20). The cleanliness of the clean room (R) is maintained at the target cleanliness by repeatedly passing the air circulating in this way through each suction filter (52) and each air supply filter (62).

<Issues related to optimization of air conditioning capacity and cleanliness>
In an air conditioning system like this example, the air conditioning capacity (horsepower and number of units per unit) of an air conditioner is determined based on the required air conditioning load of the clean room and the required cleanliness of the clean room. Here, for example, when the required air conditioning load is relatively low, an air conditioner having a low air conditioning capacity can be selected. In this case, since the air volume of the fan of the air conditioner is also small, the circulating air volume of the clean room is small, and there is a problem that the required cleanliness cannot be satisfied.

Specifically, for example, in the air conditioning system of FIGS. 10 and 11 of Reference Example 1, a floor-standing air conditioner (100) and a duct unit (110) connected to the air conditioner (100) are provided. Have. The duct unit (110) is provided with four air supply ports (120). The air conditioning system is provided with filters (121) corresponding to four air supply ports (120). In such an air conditioning system, when the cleanliness required for a clean room is high, it is necessary to select an air conditioner having a large air volume for the indoor fan in order to increase the circulating air volume in the clean room. In this case, as the air volume of the indoor fan increases, the number of air conditioners (100) and the horsepower also increase, so that the air conditioning capacity becomes excessive. In addition, the size of the duct unit (110) also increases as the air volume of the air conditioner (100) increases. As described above, in the air conditioning system of Reference Example 1, there is a problem that the air conditioner (100) and the duct unit (110) are over-designed in order to meet the demand for cleanliness of the clean room, resulting in high equipment cost. It was.

For example, the air conditioning system of FIGS. 12 and 13 of Reference Example 2 has a floor-standing air conditioner (110) and a plurality of fan filter units (115) (FFU). The air conditioner (110) and each fan filter unit (115) are provided independently. The fan filter unit (115) is provided with an air supply port (120) and a filter (121) corresponding to the air supply port (120), respectively. In addition, each fan filter unit (115) is provided with a suction port (116) and a fan (117), respectively. In this reference example 2, by optimally setting the air volume and the number of fan filter units (115) according to the required cleanliness of the clean room, the clean room does not need to change the air volume of the air conditioner (110). The circulating air volume can be optimized. However, in Reference Example 2, there is a large difference between the temperature of the air supplied to the clean room after being air-conditioned by the air conditioner (110) and the temperature of the air supplied from the fan filter unit (115) to the clean room. .. Therefore, there is a problem that the temperature distribution in the clean room varies.

<Action related to optimization of air conditioning capacity and cleanliness>
The air conditioning system (S) of the present embodiment adopts the above-described configuration in consideration of the above problems so as to optimize the air conditioning capacity and the cleaning capacity of the clean room (R). Specifically, in the air conditioning system (S) of the present embodiment, the duct unit (20) is composed of a plurality of duct modules (M) so that the duct module (M) having an auxiliary fan can be arbitrarily connected. There is.

More specifically, the plurality of duct modules (M) include a fan module (in this example, an air supply module (60)) having an air supply fan (63) which is an auxiliary fan, and the air supply module (60). Can be appropriately connected to the duct body (22). Therefore, by appropriately changing the number of air supply modules (60) and the air volume of the air supply fan (63), the circulating air volume of the clean room (R) can be increased without changing the air volume of the air conditioner (10). Can be set optimally. Therefore, as in Reference Example 1, it is possible to avoid over-designing the air conditioner (10) and the duct unit (20) due to the optimization of the circulating air volume in the clean room (R), which in turn leads to equipment costs. Can be reduced.

In addition, from each air supply port (61), the air after being air-conditioned by the air conditioner (10) is supplied to the clean room (R). Therefore, as in Reference Example 2, it is possible to avoid variations in the temperature distribution of the clean room.

In addition, the plurality of duct modules (M) include a fan module (in this example, a suction module (50)) having a suction fan (53) which is an auxiliary fan, and this suction module (50) is used as a duct body (22). ) Can be connected as appropriate. Therefore, by appropriately changing the number of suction modules (50) and the air volume of the suction fan (53), the circulating air volume of the clean room (R) can be optimized without changing the air volume of the air conditioner (10). Can be set.

When introducing the air conditioning system (S) into the clean room (R), an air conditioner (10) with an air conditioning capacity corresponding to the air conditioning load of the clean room (R) is selected. If the air volume of the selected air conditioner (10) is insufficient for the circulating air volume that satisfies the cleanliness required of the clean room (R), the air supply fan (63) or suction fan (53) will use this insufficient air volume. ) To supplement.

Since the air supply fan (63) and suction fan (53) are mounted on the duct module (M), connect any number of these duct modules (M) to any location on the duct body (22). can do. As a result, both the air conditioning capacity and the cleaning capacity of the clean room (R) can be satisfied without excess or deficiency.

-Effect of embodiment-
In the embodiment, it is an air conditioning system in which a clean room is a target space (R), and a fan (13) that conveys air in the target space (R) and a heat exchanger through which air conveyed by the fan (13) passes. An air conditioner (10) having (14) and an air passage (A) through which air conditioned by the air conditioner (10) flows are formed, and a duct unit is arranged in the target space (R). The duct unit (20) includes a first filter (62) (air supply filter (62)) for purifying the air in the air passage (A) and the first filter (62). A plurality of duct modules having an air supply port (61) for supplying the passed air to the target space (R), and the duct units (20) are connected to each other to form the air passage (A). The plurality of duct modules (M) including (M) include at least one fan module (70) having an auxiliary fan (53,63).

In this embodiment, the circulating air volume in the clean room (R) can be easily changed by connecting the air supply module (60) having the air supply fan (63) to the duct unit (20). Therefore, the cleanliness of the clean room (R) can be satisfied without changing the number of air conditioners (10) and the horsepower. Therefore, it is possible to optimize the air conditioning capacity and the cleaning capacity in the clean room (R). Excessive air conditioning capacity of the air conditioner (10) can avoid high equipment costs.

The air supply fan (63) is provided in the duct module (M) and can be easily connected to the duct unit (20). Therefore, the number and position of the air supply modules (60) can be easily changed, and various demands of the clean room (R) can be flexibly met.

In this embodiment, the circulating air volume of the clean room (R) can be easily changed by connecting the suction module (50) having the suction fan (53) to the duct unit (20). Therefore, the cleanliness of the clean room (R) can be satisfied without changing the number of air conditioners (10) and the horsepower. Therefore, it is possible to optimize the air conditioning capacity and the cleaning capacity in the clean room (R). Excessive air conditioning capacity of the air conditioner (10) can avoid high equipment costs.

The suction fan (53) is provided in the duct module (M) and can be easily connected to the duct unit (20). Therefore, the number and position of the suction modules (50) can be easily changed, and various requirements of the clean room (R) can be flexibly met.

In an embodiment, the plurality of duct modules (M) include a first filter (62) (air supply filter (62)) and at least one air supply module (60) having the air supply port (61). ..

In this form, the cleaning capacity of the air conditioning system (S) can be easily changed by changing the number of air supply modules (60) and the performance of the air supply filter (62).

In the embodiment, the air supply module (60) has the auxiliary fan (air supply fan (63)), which also serves as the fan module.

In this form, since the air supply module (60) and the fan module are composed of one module, the number of parts can be reduced.

In an embodiment, the plurality of duct modules (M) include at least one suction module (50) having a suction port (51) for sucking air in the target space (R).

In this form, the air in the clean room (R) can be sucked directly into the duct unit (20). For this reason, it is possible to surely prevent the air volume of the air conditioning unit (11) from becoming larger than the rated air volume due to the addition of the air supply fan (63), and the operating efficiency of the air conditioner (10) is reduced. Can be suppressed.

In an embodiment, the suction module (50) has a second filter (52) (suction filter (52)) that purifies the air sucked into the suction port (51).

In this form, the air sucked from the suction port (51) can be cleaned by the suction filter (52). Therefore, the cleaning capacity of the air conditioning system (S) can be easily changed by changing the number of suction modules (50) and the performance of the suction filter (52).

In the embodiment, the suction port (51) is formed on the lower surface of the suction module (50).

In this form, the air in the clean room (R) can be easily sucked from the suction port (51), and the resistance of the air sucked into the suction port (51) can be reduced. Therefore, the power of the suction fan (53) and the air supply fan (63) can be reduced.

In the embodiment, the suction module (50) has the auxiliary fan (suction fan (53)), and also serves as the fan module (70).

In this form, by providing the suction fan (53) in the suction module (50), the circulating air volume of the clean room (R) can be easily changed, and the cleaning capacity of the target space (R) can be optimized. Since the suction module (50) and the fan module (70) are composed of one module, the number of parts can be reduced.

In the embodiment, the plurality of duct modules (M) are formed with two or more branch ports (41,42,43) for dividing air, and correspond to each branch port (41,43,43). Includes a branch module (40) to which each duct module (M) is connected.

In this form, the duct unit (20) can be arbitrarily branched by using the branch module (40). Therefore, the degree of freedom in the layout of the duct unit (20) can be improved.

The embodiment is characterized in that the fan module (70) is provided at a position at the end of the duct unit (20) after branching from the branch module (40).

In this form, the fan module (70) can be arranged at the branch point of the duct unit (20).

-Modified example of the embodiment-
The above embodiment may have the following configuration.

<Modification example 1>
In the embodiment, the suction module (50) and the air supply module (60) are configured by a separate duct module (M). However, as shown in FIG. 5, the suction module (50) and the air supply module (60) may be configured by an integrated duct module (M). That is, the duct module (M) of the modified example 1 includes a suction port (51), a suction filter (52), a suction fan (53), an air supply port (61), an air supply filter (62), and an air supply fan ( 63). In other words, the air supply module (60) also serves as a fan module (70) having a suction fan (53) and an air supply fan (63), and also serves as a suction module (50) having a suction port (51). ing.

<Modification 2>
As shown in FIG. 6, the suction module (50) and the air supply module (60) do not necessarily have to have an auxiliary fan. The duct unit (20) of the second modification is a suction module (50) having a suction port (51) and a suction filter (52), a fan module (70) having an air supply fan (63), and an air supply port ( It has an air supply module (60) with a 61) and an air supply filter (62). These modules (50,60,70) are configured separately and are provided, for example, in a branch duct (24). In the duct unit (20), the suction module (50), the fan module (70), and the air supply module (60) are continuously connected in this order from the upstream side to the downstream side of the air passage (A).

<< Other Embodiments >>
The above-described embodiment and each modification may have the following configurations.

The air conditioning unit (11) is located in the clean room (R). However, the air conditioning unit (11) may be arranged in a space different from that of the clean room (R). In this case, the air conditioning suction port (15) of the air conditioning unit (11) communicates with the clean room (R) via a duct or the like.

The air conditioning unit (11) may be composed of indoor units such as a ceiling-mounted type, a ceiling-embedded type, and a wall-mounted type.

The air conditioning system (S) may have an outside air processing unit. The outside air processing unit is arranged in the outdoor space. The outside air processing unit purifies the outdoor air with a filter, and supplies the purified air to the base duct (21) of the duct unit (20). The outdoor air merges with the air conditioned by the air conditioner (10) and then flows through the duct body (22).

As shown in FIG. 6, the ventilation module (30) may have an inflow port (I) formed in the subsequent plate and an outlet (O) formed in the right side plate thereof. An inverted L-shaped air passage is formed inside the ventilation module (30) when viewed from above.

As shown in FIG. 7, the ventilation module (30) may have an inlet (I) formed on its subsequent plate and an outlet (O) formed on its left plate. An L-shaped air passage is formed inside the ventilation module (30) when viewed from above.

As shown in FIG. 8, in the branch module (40), the first branch port (41) is formed on the left side plate thereof, and the third branch port (43) is formed on the front plate (12a) thereof, while the right side thereof is formed. The second branch port (42) of the plate may be omitted.

As shown in FIG. 9, the branch module (40) has a second branch port (42) formed on the right side plate thereof and a third branch port (43) formed on the front plate (12a) thereof, while the left side thereof is formed. The first branch port of the plate may be omitted.

The suction port (51) is formed on the lower surface of the suction module (50). However, the suction port (51) may be formed on the side plate of the suction module (50).

Although the embodiments and modifications have been described above, it will be understood that various modifications of the forms and details are possible without departing from the purpose and scope of the claims. In addition, the above embodiments, modifications, and other embodiments may be appropriately combined or replaced as long as they do not impair the functions of the present disclosure. The above-mentioned descriptions of "first", "second", "third" ... Are used to distinguish the words and phrases to which these descriptions are given, and the number and order of the words and phrases are also limited. It's not something to do.

As described above, the present disclosure is useful for air conditioning systems.

S Air conditioning system R Clean room (target space)
M Duct module 10 Air conditioner 13 Indoor fan (fan)
14 Indoor heat exchanger (indoor heat exchanger)
20 Duct unit 40 Branch module 41 1st branch port 42 2nd branch port 43 3rd branch port 50 Suction module (fan module)
51 Suction port 52 Suction filter (second filter)
53 Suction fan (auxiliary fan)
60 Air supply module (fan module 61 air supply port 62 air supply filter (first filter)
63 Air supply fan (auxiliary fan)
70 fan module

Claims (9)

An air conditioning system that targets a clean room (R)
An air conditioner (10) having a fan (13) for carrying air in the target space (R) and a heat exchanger (14) through which the air carried by the fan (13) passes.
An air passage (A) through which air conditioned by the air conditioner (10) flows is formed, and a duct unit (20) arranged in the target space (R) is provided.
The duct unit (20)
The first filter (62) that purifies the air in the air passage (A) and
It has an air supply port (61) that supplies air that has passed through the first filter (62) to the target space (R).
The duct unit (20) includes a plurality of duct modules (M) that are connected to each other to form the air passage (A).
The air conditioning system, wherein the plurality of duct modules (M) include at least one fan module (50,60,70) having an auxiliary fan (53,63). In claim 1,
The air conditioning system, wherein the plurality of duct modules (M) include at least one air supply module (60) having the first filter (62) and the air supply port (61). In claim 2,
An air conditioning system characterized in that the air supply module (60) has the auxiliary fan (63) and also serves as the fan module. In any one of claims 1 to 3,
The air conditioning system, wherein the plurality of duct modules (M) include at least one suction module (50) having a suction port (51) for sucking air in the target space (R). In claim 4,
The air conditioning module (50) has a second filter (52) that purifies the air sucked into the suction port (51). In claim 5,
An air conditioning system characterized in that the suction port (51) is formed on the lower surface of the suction module (50). In any one of claims 4 to 6,
An air conditioning system characterized in that the suction module (50) has the auxiliary fan (53) and also serves as the fan module. In any one of claims 1 to 7,
In the plurality of duct modules (M), two or more branch ports (41,42,43) for diversion of air are formed, and other duct modules corresponding to each branch port (41,42,43) are formed. An air conditioning system characterized in that each (M) contains a branch module (40) to which it is connected. In claim 8.
An air conditioning system characterized in that the fan module (50, 60, 70) is provided at a position at an end portion of the duct unit (20) after branching from the branch module (40).

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