JP2007285687A - Ventilation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation system for efficiently improving the comfortability of each space when ventilating a plurality of spaces and a space adjacent to each of the plurality of spaces. <P>SOLUTION: The common space mediated ventilation system 100 uses air in an outside OS for ventilating a plurality of rooms Ra-Rf and a common space CS contacting the plurality of rooms Ra-Rf via partitioning plates Da-Df. It comprises a common space air conditioning system 10, and a plurality of ceiling embedded air conditioning indoor units 20. The common space air conditioning system 10 entraps air in the outside OS into the common space CS. The plurality of ceiling embedded air conditioning indoor units 20 are provided corresponding to the rooms Ra-Rf, respectively, for feeding the air in the common space CS to the rooms Ra-Rf. The ceiling embedded air conditioning indoor units 20 condition the air CA in the common space CS to be fed into the rooms Ra-Rf. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ventilation system, and more particularly to a ventilation system for a building provided with a plurality of rooms and a common space.

Conventionally, as a general ventilation system, outside air (outside air) is taken into a predetermined space to ventilate, and an outside air duct is provided so that the predetermined space communicates with the outside. It has been known.
In such a ventilation system, for example, there is a ventilation system in which outside air is introduced into a space between a room and a toilet, as in a ventilation system described in Patent Document 1 shown below. According to this ventilation system, the air flow toward the room side and the air flow toward the toilet side are formed by the outside air introduced into the space between the room and the toilet, and the room and the toilet are ventilated. And when ventilating such a room and a plurality of rooms such as a toilet, the contaminated air in a specific room (for example, toilet odor) should not flow into other rooms to be ventilated. ing.
JP 2004-239568 A

However, in the ventilation system disclosed in Patent Document 1, the comfort of each room is improved by ventilating a room, a toilet, etc., but the comfort cannot be sufficiently obtained by simply performing ventilation. Sometimes.
The present invention has been made in view of the above-described points, and an object of the present invention is to efficiently improve the comfort of each space when ventilation is performed for a plurality of spaces and spaces adjacent to each of the plurality of spaces. It is to provide a ventilation system that can be improved.

  A ventilation system according to a first aspect of the present invention is a ventilation system that performs ventilation using outdoor air for a plurality of target spaces and a common space that is in contact with each of the plurality of target spaces via a partition plate. In addition, an outside air processing unit and a plurality of target space units are provided. The outside air processing unit takes outdoor air into the common space. The plurality of target space units are provided corresponding to each target space, and send air in the shared space to the target space. And these object space units have the object space air-conditioning part which harmonizes the air of the common space sent to the object space at least. Here, the air to be air-conditioned by the target space air-conditioning unit is not limited to the air in the common space, but includes the case of air-conditioning by mixing air in other spaces. In addition, the harmony includes, for example, air temperature adjustment, cleaning by removing pollen, dust, and the like.

In a conventional ventilation system, ventilation of a plurality of adjacent spaces is performed through a space where outdoor air is introduced, but the comfort of each adjacent space may not be sufficiently improved.
On the other hand, in the ventilation system of the first invention, the outside air processing unit takes in fresh outdoor air for the common spaces adjacent to each of the plurality of target spaces. In the target space unit provided for each target space, fresh air taken into the common space by the outside air processing unit is used when performing ventilation of each target space and air conditioning by the target space air conditioning unit. can do.

As a result, fresh air taken into the common space can be used for ventilation and air conditioning of multiple target spaces, and the comfort of each of the multiple target spaces adjacent to the shared space can be improved. Is possible.
In addition, since multiple target spaces can be ventilated using fresh outside air taken into the common space, which is an adjacent space, separate long ducts that extend to the outside for ventilation. It is possible to eliminate the need to provide the

The ventilation system according to the second invention is the ventilation system of the first invention, wherein the number of outside air processing units is smaller than the number of target space units.
Here, for example, the common space is ventilated by one outside air processing unit, and the ventilation and air conditioning of a plurality of target spaces are performed using fresh air supplied to the common space by this one outside air processing unit. It can be carried out.
For this reason, it becomes possible to provide the air of the common space used for ventilation and air conditioning of each of the plurality of target spaces by a small number of outside air processing units.

A ventilation system according to a third aspect is the ventilation system according to the first aspect or the second aspect, wherein the target space unit harmonizes only the air in the common space and the air in the target space.
Here, the target space unit performs ventilation and air conditioning of the target space by using only air in the common space and air in the target space as targets.
This makes it possible to ventilate the target space with fresh air using fresh air in the common space while reducing the air conditioning load by circulating air that is harmonized and collected in the target space and then air-conditioning again. Become.

A ventilation system according to a fourth aspect of the present invention is the ventilation system according to any one of the first to third aspects of the present invention, comprising at least two or more outdoor units connected so that the refrigerant circulates between the target space units. It has more.
Here, even when used with a plurality of target space units, an outdoor unit having a small capacity per unit can be employed.

A ventilation system according to a fifth aspect of the present invention is the ventilation system according to any one of the first to fourth aspects, wherein a plurality of outside air processing units are provided. And it further has at least two or more outdoor units or heat source units connected so that the refrigerant circulates between them. As an outdoor unit or a heat source unit here, what is multi-connected including not only an outside air processing unit but object space unit is also included, for example.
Here, even when used together with a plurality of outside air processing units, it is possible to employ an outdoor unit or a heat source unit having a small capacity per unit.

  A ventilation system according to a sixth aspect of the present invention is the ventilation system according to any one of the first to fifth aspects, wherein the target space unit includes a casing and a heat exchanger. Here, the casing is formed with a first target-side vent opening and a second target-side vent opening toward the target space, and a common-side vent opening opening toward the common space. The heat exchanger performs heat exchange with air taken into the casing from at least one of the shared-side vent and the first target-side vent.

  Here, the heat exchanger exchanges heat with the air taken into the casing from either one of the shared-side vent and the first target-side vent, so that the temperature-balanced air is converted into the target space. Can be sent to. Here, as the air to be heat exchanged by the heat exchanger, the air taken into the casing from the common side vent and the air taken into the casing from the first target side vent. Both are good. In this case, it is possible to adjust the temperature of the air that is blown into the target space for both of these airs.

A ventilation system according to a seventh aspect is the ventilation system according to the sixth aspect, wherein the target space unit is disposed between the heat exchanger and the second target side vent and is rotated to drive the heat exchanger side. It further has a blower fan which makes negative pressure.
Here, the blower fan has a negative pressure on the heat exchanger side and a positive pressure in the space near the second target side vent hole.

Thereby, it becomes possible to more reliably perform the temperature adjustment by the heat exchanger of the air taken into the casing from one or both of the shared-side vent and the first target-side vent.
Further, when both the air taken into the casing from the common side vent and the air taken into the casing from the first target side vent pass through the heat exchanger more reliably, the common space To prevent air from being blown into the target space via the first target side vent hole without going to the heat exchanger side, or to prevent circulating air from the target space from flowing into the common space It becomes possible.

A ventilation system according to an eighth invention is the ventilation system according to any one of the sixth invention or the seventh invention, wherein the heat exchanger has a space in the vicinity of the first object side vent and the second object side vent in the casing. It is arranged at a position that partitions a nearby space. And the 1st object side vent of the above-mentioned casing is opened in the substantially vertical direction, and the 2nd object side vent is opened in the substantially horizontal direction.
Here, the 1st object side vent provided in the casing is opening toward the substantially perpendicular direction, Therefore The circulating air from object space can be taken in in a casing from the downward direction. And the 2nd object side vent provided in the casing is opening toward the substantially horizontal direction, so that the temperature-controlled air can be blown out toward the object space in the approximately horizontal direction through the heat exchanger. it can.
Thereby, even if it is a case where the installation position of a casing becomes a partition plate vicinity with a common space, efficient air-conditioning of object space is attained by blowing conditioned air toward the object space side.

A ventilation system according to a ninth invention is the ventilation system according to any one of the first to eighth inventions, wherein the target space unit is located near the ceiling across each partition plate between the shared space and the plurality of target spaces. is set up.
Here, since the target space unit is provided in the vicinity of the ceiling, the partition plate that partitions the shared space and the target space can be refreshed.

A ventilation system according to a tenth aspect of the present invention is the ventilation system according to any one of the first to eighth aspects of the present invention, wherein the target space unit partitions the common space and the plurality of target spaces together with each partition plate.
Here, the target space unit can have a compact design when the air in the common space adjacent to each other through the partition plate is used.

A ventilation system according to an eleventh aspect of the present invention is the ventilation system according to any one of the first to tenth aspects of the present invention, wherein the outside air processing unit further includes a common space air conditioning unit that harmonizes air taken into the common space from the outside. ing. In addition, as air conditioning here, not only the heat exchange by the heat exchanger with respect to air to be conditioned, but also purification of air to be conditioned is included.
Here, each of the plurality of target space units is harmonized by the shared space air conditioning unit of the outside air processing unit, and it is possible to air-condition each target space using fresh air, thereby reducing the air conditioning load. It becomes possible to make it.

  A ventilation system according to a twelfth aspect of the present invention is the ventilation system according to any of the eleventh aspects of the present invention, wherein the common space air-conditioning unit is common air conditioning data that is substantially commonly required in a plurality of target spaces, or is substantially averaged. Then, the requested average air conditioning data is acquired, and control is performed to blow out the conditioned air to the common space according to the acquired data.

Here, when the outside air processing unit supplies outside air to the common space, the conditioned air required in each of the plurality of target spaces is provided by using the acquired common air conditioning data or average air conditioning data. Can do.
Thereby, in the target space unit, it is possible to perform air conditioning using air close to the air quality required in each target space, and thus it is possible to reduce the air conditioning load as a whole.

  A ventilation system according to a thirteenth aspect of the present invention is the ventilation system according to any one of the first to twelfth aspects of the present invention, further comprising a refrigerant circuit that constitutes a refrigeration cycle by circulating the refrigerant including the outside air processing unit. . The outside air processing unit further includes an adsorption unit that adsorbs or regenerates moisture in the air by being cooled or heated by the temperature of the refrigerant flowing through the refrigerant circuit.

Here, the moisture contained in the air supplied to the common space by the outside air processing unit can be adjusted by the adsorption unit.
As a result, as the heat exchanger of the plurality of target space units, air with adjusted humidity can be used as the air to be conditioned, so that a simple configuration that performs only sensible heat exchange is employed. The humidity of the target space can be adjusted.

A ventilation system according to a fourteenth aspect of the present invention is the ventilation system according to any one of the first to thirteenth aspects of the present invention, wherein the target space unit further includes a determination unit that determines whether or not a predetermined condition is satisfied. Then, the target space unit sends the air in the common space to the target space according to the determination result of the determination unit.
Here, the target space unit is provided with a determination unit for determining whether or not to send air in the shared space to the target space. This determination unit determines whether or not to send air to the target space depending on whether or not a predetermined condition is satisfied.
Thus, by selecting conditions according to the air conditioning load of the target space, the set air conditioning state, intermittent timing, etc. as the predetermined condition, it is possible to save energy by suppressing excessive intake of air in the common space to the target space. An effect can be obtained.

  A ventilation system according to a fifteenth aspect is the ventilation system according to any one of the first to fourteenth aspects, wherein the common space temperature sensor detects the temperature of the common space, and the target space temperature sensor detects the temperature of the target space. Or at least any one of the setting temperature detection part which sets the target temperature of object space, and the taking-in amount adjustment part are provided. Here, the intake amount adjusting unit determines whether the air from the common space to the target space depends on the difference or ratio between the temperature detected by the target space temperature sensor or the set temperature of the target space and the temperature detected by the common space temperature sensor Adjust the intake amount. Here, the means for varying the intake amount may be a slide shutter whose opening degree can be changed, a switching damper, or the like.

Here, depending on the difference or ratio between the temperature detected by the target space temperature sensor or the target temperature set by the target space temperature and the temperature detected by the common space temperature sensor, the target air temperature can be reduced, such as a loss that causes warm air to be taken in. It can be determined whether ventilation in space results in energy loss.
Thereby, it is possible to save energy by suppressing unnecessary air intake from the common space to the target space and reducing the air conditioning load.

In the ventilation system according to the first aspect of the present invention, fresh air taken into the common space can be used for ventilation and air conditioning of the plurality of target spaces, and each of the plurality of target spaces adjacent to the common space can be used. Comfortability can be improved.
In the ventilation system according to the second aspect of the present invention, it is possible to provide the air in the common space used for ventilation and air conditioning of each of the plurality of target spaces by a small number of outside air processing units.

In the ventilation system according to the third aspect of the present invention, the air that is harmoniously collected in the target space is circulated and air-conditioned again to reduce the air-conditioning load, while the target space is fresh with fresh air in the common space. It becomes possible to ventilate.
In the ventilation system according to the fourth aspect of the invention, it is possible to employ an outdoor unit having a small capacity per unit even when used with a plurality of target space units.

In the ventilation system according to the fifth aspect of the present invention, it is possible to adopt an outdoor unit or a heat source unit having a small capacity per unit even when used with a plurality of outside air processing units.
In the ventilation system according to the sixth aspect of the invention, the heat exchanger exchanges heat with the air taken into the casing from either one of the shared-side vent and the first target-side vent, so that the temperature is harmonized. The sent air can be sent to the target space.

In the ventilation system according to the seventh aspect of the present invention, the temperature of the air taken into the casing from one or both of the common side vent and the first target side vent can be adjusted more reliably by the heat exchanger. It becomes.
In the ventilation system according to the eighth aspect of the invention, even if the installation position of the casing is in the vicinity of the partition plate with the common space, the conditioned air is blown out toward the target space, so that the target space can be efficiently air-conditioned. It becomes possible.

In the ventilation system according to the ninth aspect, the partition plate that partitions the common space and the target space can be refreshed.
In the ventilation system according to the tenth aspect of the invention, the target space unit can have a compact design when the air in the common space adjacent to each other through the partition plate is used.
In the ventilation system according to the eleventh aspect of the present invention, each of the plurality of target space units is harmonized once by the shared space air conditioning unit of the outside air processing unit, and it is possible to air-condition each target space using fresh air. Thus, the air conditioning load can be reduced.

In the ventilation system according to the twelfth aspect, in the target space unit, it is possible to perform air conditioning using air close to the air quality required in each target space, so that the air conditioning load is reduced as a whole. Is possible.
In the ventilation system according to the thirteenth aspect of the invention, as the heat exchanger of the plurality of target space units, air with adjusted humidity can be used as the air to be conditioned, and thus a simple configuration that performs only sensible heat exchange It is possible to adjust the humidity of the target space while adopting the one.

In the ventilation system according to the fourteenth aspect, by selecting a condition according to the air conditioning load of the target space or the set air conditioning state as the predetermined condition, it is possible to suppress excessive intake of air in the common space to the target space. Is possible.
In the ventilation system according to the fifteenth aspect of the invention, energy can be saved by suppressing unnecessary air intake from the common space to the target space and suppressing the air conditioning load.

<Schematic configuration of common space intermediate air conditioning system 100>
FIG. 1 shows a schematic configuration of a common space-mediated air conditioning system 100 in which an embodiment of the present invention is adopted. FIG. 2 shows a schematic configuration diagram of a refrigerant circuit of the common space-mediated air conditioning system 100.
This common space mediating air conditioning system 100 has a common space (corridor, lobby, atrium space, etc.) adjacent to each room when air conditioning is performed for a plurality of rooms (rooms) Ra to Rf in FIG. This system is used for buildings such as hotels, offices, condominiums and apartments. And in this common space mediation air conditioning system 100, ventilation and air conditioning of the plurality of rooms Ra to Rf via the common space CS adjacent to each of the plurality of rooms Ra to Rf through the partition plates Da to Df. It is a system that performs.

This common space intermediate air conditioning system 100 is mainly composed of a common space air conditioner 10, a plurality of ceiling-embedded air conditioning indoor units 20 provided in each of a plurality of rooms Ra to Rf, and a plurality of units in series or in parallel with each other. And a multi-outdoor unit 30 that is connected to form a refrigerant circuit together with the common space air conditioner 10 and the ceiling-embedded air conditioning indoor unit 20.
In the shared space intermediate air conditioning system 100, a plurality of shared space air conditioners 10a and 10b and a plurality of ceiling-embedded air conditioning indoor units 20a to 20f are connected to two (or more) outdoor units 30a and 30b. It is a so-called indoor multi-type air conditioner, and is also an outdoor multi-air conditioner.
In this common space intermediate air conditioning system 100, as shown in FIG. 2, two common space air conditioners 10 (10a, 10b) and six ceiling embedded types are provided for two outdoor units 30a, 30b. The air conditioning indoor unit 20 (20a to 20f) is connected by a refrigerant pipe.

(Multi outdoor unit)
The multi outdoor unit 30 includes two outdoor units 30a and 30b. Since these two outdoor units 30a and 30b have the same configuration, the outdoor unit 30a will be described below, and the description of the outdoor unit 30b will be omitted.

  As shown in FIG. 2, the outdoor unit 30a includes a compressor 37a, a four-way switching valve 31a, an outdoor heat exchanger 32a, an accumulator 33a, a plurality of on-off valves 38, and the like. A discharge pipe thermistor 34a for detecting the discharge pipe temperature on the discharge side of the compressor 37a is attached to the discharge side of the compressor 37a. The outdoor unit 30a includes an outdoor thermistor 35a for detecting the outdoor temperature and an outdoor heat exchange thermistor 36a for detecting the temperature of the outdoor heat exchanger 32a.

  These two outdoor units 30a and 30b are responsible for a part of the refrigerant circuit configured by being connected to the common space air conditioner 10 and the ceiling-embedded air conditioner indoor unit 20 described above via a refrigerant pipe. Yes. The connection form of the refrigerant pipe connecting the common space air conditioner 10, the ceiling-embedded air conditioning indoor unit 20, and the outdoor units 30 a and 30 b here is by switching the opening and closing of the on-off valves 38 provided at various places. The outdoor units 30a and 30b are connected in parallel or switched in series. Thus, even when a large capacity is required by being connected to the multi-indoor unit 30, it can be handled by connecting the multi-outdoor units 30 in series and operating them simultaneously. Even if 30a, 30b fails, the operation state can be maintained by the other outdoor units 30b, 30a connected in parallel.

(Common space air conditioner)
As shown in FIG. 1, the common space air conditioner 10 (10 a, 10 b) is installed on a wall or the like that divides the common space CS such as a corridor from the outside. It is configured. Since these common space air conditioners 10a and 10b have the same configuration, the common space air conditioner 10a will be described below, and the description of the common space air conditioner 10b will be omitted.

  As shown in FIG. 2, the common space air conditioner 10a includes a common adsorption heat exchanger 16a and an electric valve 13a, and the common adsorption heat exchanger 16a and the electric valve 13a are connected in series. The shared adsorption heat exchanger 16a is an aluminum laminated heat exchanger provided with a moisture absorbing material that adsorbs moisture on the surface thereof, and the temperature of the refrigerant flowing inside is adjusted to process the latent heat load, thereby allowing the shared space CS to be processed. In contrast, humidified conditioned air or dehumidified conditioned air is supplied. The electric valve 13a is provided on the outlet side of the common adsorption heat exchanger 16a and adjusts the amount of refrigerant flowing to the common adsorption heat exchanger 16a. The common space air conditioner 10a includes a common space temperature sensor 11a for detecting the temperature of the common space CS and a common adsorption heat exchange thermistor 12a for detecting the temperature of the common adsorption heat exchanger 16a. ing. A liquid pipe thermistor 14 for detecting the liquid pipe temperature between the common adsorption heat exchanger 16a and the electric valve 13a is provided in the pipe between the common adsorption heat exchanger 16a and the electric valve 13a. A gas pipe thermistor 15 for detecting the temperature of the refrigerant passing through the inside is provided on the gas pipe side of the common adsorption heat exchanger 16a. Further, in the vicinity of the shared adsorption heat exchanger 16a, an air supply fan (not shown), an exhaust fan, and a fan motor for rotating each of them are provided.

  And the data detected from the various sensors mentioned above are acquired in the common air-conditioning control parts 17a and 17b. In the common air conditioning controllers 17a and 17b, the rotational speeds of the air supply fan and the exhaust fan are adjusted based on the various data thus obtained, and the refrigerant temperature flowing through the common adsorption heat exchangers 16a and 16b is adjusted. Thus, the fresh air humidity of the outdoor OS supplied to the common space CS is adjusted. Further, based on the indoor temperature sensor 21 provided for each room Ra to Rf, which will be described later, the indoor temperature set and input by the controller 27, and the temperature detected by the common space temperature sensor 11a described above, the supply is performed. The amount of rotation of the air fan and exhaust fan is controlled to control the ventilation amount of the common space CS, the temperature of the refrigerant flowing through the common adsorption heat exchanger 16 is controlled to regenerate moisture, and the common space CS Adjust the temperature supplied.

  In addition, the common space air conditioner 10 mentioned above ventilates and air-conditions the common space CS by two units that are fewer than the six ceiling-embedded air conditioning indoor units 20a to 30f provided facing the common space CS. Can do. For this reason, since it can provide the fresh conditioned air which more ceiling-embedded air-conditioning indoor units 20a-10f use for an air conditioning with few common space air conditioners 10a and 10b, it becomes an efficient system. Yes.

(Wall-mounted air conditioning indoor unit)
The ceiling-embedded air conditioning indoor units 20 (20a to 20f) are embedded in the ceiling-embedded air conditioning indoor units 20a to 20f respectively provided for a plurality of rooms Ra to Rf, as shown in FIGS. 20f. These ceiling-embedded air conditioning indoor units 20a to 20f are installed for each of the rooms Ra to Rf and perform air conditioning of each room. Since these ceiling-embedded air conditioning indoor units 20a to 20f have the same configuration, the ceiling-embedded air conditioning indoor unit 20a will be described below, and the description of the ceiling-embedded air conditioning indoor units 2020b to 20f will be omitted. To do.

The ceiling-embedded air conditioning indoor unit 20a is provided so as to be embedded in a ceiling portion above each wall surface Da that partitions the common space CS and each room Ra, and straddles the common space CS and the room Ra. It faces both the common space CS and the room Ra.
The six ceiling-embedded air conditioning indoor units 20a to 20f are arranged in separate rooms R1 to R6, respectively, as shown in FIG. Since these ceiling-embedded air conditioning indoor units 20a to 20f have the same configuration, the ceiling-embedded air conditioning indoor unit 20a will be described below, and the ceiling-embedded air conditioning indoor units 20b to 20f will be described. Omitted.

  The ceiling-embedded air conditioning indoor unit 20a includes an indoor heat exchanger 26a and an electric valve 23a as shown in FIG. 2 (in FIG. 2, the ceiling-embedded air conditioning indoor units 20c to 20f are not shown). The indoor heat exchanger 26a and the motor operated valve 23a are connected in series. The electric valve 23a is provided on the outlet side of the indoor heat exchanger 26a and adjusts the amount of refrigerant flowing through the indoor heat exchanger 26a. The ceiling-embedded air conditioning indoor unit 20a includes an indoor temperature sensor 21a for detecting the temperature of the room Ra and an indoor heat exchange thermistor 22a for detecting the temperature of the indoor heat exchanger 26a. Yes. The pipe between the indoor heat exchanger 26a and the electric valve 23a is provided with a liquid pipe thermistor 24 for detecting the liquid pipe temperature between the indoor heat exchanger 26a and the electric valve 23a. On the gas pipe side of the indoor heat exchanger 26a, a gas pipe thermistor 25 for detecting the temperature of the refrigerant passing through the inside is provided. In addition, an indoor fan 29a described later and a fan motor (not shown) for rotating each of these are provided in the vicinity of the indoor heat exchanger 26a and housed in an indoor unit casing 28 described later. ing.

  And the data detected from the various sensors mentioned above are acquired in controller 27a, 27b. The controllers 27a and 27b adjust the rotation speed of the indoor fan 29a and adjust the temperature of the refrigerant flowing through the indoor heat exchangers 26a and 26b on the basis of the various data thus obtained. By adjusting the amount of air to be taken in and the amount of air taken in from the room and circulated, the amount of fresh conditioned air supplied to the room Ra is adjusted, or the temperature of the refrigerant flowing into the indoor heat exchanger 26a is adjusted. The temperature is adjusted by heat exchange.

Hereinafter, the installation state and the details of the internal configuration will be described by taking the ceiling-embedded air conditioning indoor unit 20a as an example.
<Installation of ceiling-embedded air conditioning indoor unit>
As shown in FIG. 3, the indoor unit casing 28 a of the ceiling-embedded air conditioning indoor unit 20 is provided with respect to the partition plate Da that partitions the shared space CS so as to be embedded in the ceiling of the room Ra. Yes. The indoor unit casing 28a has three openings: an indoor suction port 81a that sucks in circulating air, an indoor air outlet 82a that blows conditioned air to the room Ra, and a shared space suction port 83a that opens to the shared space CS side. Is provided.

  An indoor heat exchanger 26a and an indoor fan 29a are accommodated in the indoor unit casing 28a. This indoor heat exchanger 26a is an aluminum laminated heat exchanger. As shown in FIG. 3, the indoor fan 29a is disposed between the indoor heat exchanger 26a and the indoor outlet 82a. And the indoor fan 29a is rotationally driven, and it arrange | positions so that the vicinity part of the indoor suction inlet 81a and the common space suction inlet 83 may become a negative pressure. Here, the indoor suction port 81 provided in the indoor unit casing 28a opens in a substantially vertical direction. Thereby, when the circulating air from the room Ra is taken into the indoor unit casing 28a from below, an upward air flow is generated from the bottom. Further, the common space suction port 83a provided in the indoor unit casing 28a is opened in a substantially horizontal direction. As a result, a horizontal air flow is generated when the air from the common space CS is taken into the indoor unit casing 28a. Then, the upward air flow sucked from the indoor suction port 81a and the horizontal air flow sucked from the common space suction port 83a join together, so that there is a portion in which an air flow in a substantially oblique upward direction is generated. is there.

The indoor heat exchanger 26a is disposed in the indoor unit casing 28a so as to be perpendicular to the joined air flow direction. Thereby, an air flow can contact efficiently with the plane part of indoor heat exchanger 26a, and can improve heat exchange efficiency.
Further, the indoor fan 29a rotates and drives the indoor fan 29a so that the combined air flow passes through the indoor heat exchanger 26a more reliably, so that the indoor fan 29a passes through the shared space suction port 83a from the shared space CS. It is possible to prevent the air taken into the machine casing 28a from flowing into the room Ra via the indoor suction port 81a without going toward the indoor heat exchanger 26a. Similarly, the indoor air RAa taken into the indoor unit casing 28 from the room Ra through the indoor suction port 81a does not go to the indoor heat exchanger 26a side, and the shared space CS is passed through the shared space suction port 83a. Can be prevented from flowing out.
The common space suction port 83a is provided with a slide shutter (not shown), a switching damper, or the like, and when the air from the common space CS is not taken in, these slide shutter and switching damper close the common space suction port. Then, the intake of the common air CS is stopped, and the room Ra is air-conditioned only by the circulation of the room air RA.

<Air-conditioning operation of the common space intermediate air-conditioning system 100>
(Ventilation / air conditioning in common spaces)
First, the fresh air OA of the outdoor OS is taken into the common space CS by the common space air conditioner 10. At this time, the humidity of the fresh outside air OA is adjusted by the shared adsorption heat exchanger 16 and the temperature is also adjusted. The adjustment of temperature and humidity here is common by the common air conditioning control unit 17 by acquiring what air conditioning environment is requested to be input to the controllers 27a to 27f in the plurality of rooms Ra to Rf. Understand the air conditioning contents. If there is a common air conditioning content, averaged data is calculated for each air conditioning content. For example, when “cooling operation” is requested in all of the plurality of rooms Ra to Rf, the shared air conditioning control unit 17 recognizes this “cooling operation” as common air conditioning content. The shared air-conditioning control unit 17 further explains in detail the common “cooling operation” in terms of the “set temperature / humidity in the cooling operation”. The average is calculated from the humidity. As a result, the temperature of the refrigerant flowing through the common adsorption heat exchanger 16 is controlled so that the calculated average temperature / humidity can be blown out to the common space, and the rotation speed of the supply fan and exhaust fan is controlled. Or control.

(Ventilation and air conditioning in each room)
Each of the ceiling-embedded air-conditioning indoor units 20a to 20f is air-conditioned in each of the rooms Ra to Rf by using fresh, temperature-humidified air taken into the common space CS by the common space air conditioner 10 described above. I do. Here, each of the ceiling-embedded air conditioning indoor units 20a to 20f first takes in fresh and harmonized air taken into the common space CS into the indoor unit casing 28a. Here, the amount of air taken into each room Ra to Rf from the common space CS is determined by the controller 27 according to the difference between the temperature detected by the common space temperature sensor 11 and the temperature detected by the indoor temperature sensor 21. It is adjusted by controlling the rotation speed of the fan motor.

<Characteristics of Shared Space Mediating Air Conditioning System 100 of this Embodiment>
(1)
In the shared space intermediate air conditioning system 100 in the present embodiment, the shared space air conditioner 10 harmonizes humidity adjustment of fresh air of the outdoor OS for the shared space CS adjacent to each of the plurality of rooms Ra to Rf. And taking it in. In the ceiling-embedded air conditioning indoor units 20a to 20f provided corresponding to the rooms Ra to Rf, fresh air taken into the common space CS when the rooms Ra to Rf are ventilated and air conditioned, respectively. Air with controlled humidity can be used. As a result, the air that has been taken into the common space CS and freshly adjusted in humidity can be used for ventilation and air conditioning of the plurality of rooms Ra to Rf, and a plurality of rooms adjacent to the common space CS. The comfort of each space of Rs to Rf can be improved. Moreover, since each room Ra-Rf is ventilated using the fresh external air taken in the common space CS which is adjacent space, as a wall-mounted air-conditioning indoor unit, to outdoor OS in order to ventilate It is not necessary to provide a long elongated duct or the like separately from the air conditioner, and the initial cost of the facility can be reduced. And about the pressure loss which became a problem when ventilating using the long duct like the past, in the common space mediation air-conditioning system 100 of the above-mentioned embodiment, it is short only through thin partition plates Da-Df. Since ventilation can be performed only by passing through the flow path, such pressure loss can be reduced. As a result, it is possible to save energy of the fan motor that has been required to rotationally drive the indoor fan 29, thereby reducing the running cost.
Further, in ventilation / air conditioning for only each room such as a conventional air conditioner, the common space air conditioning is also applied to the common space CS shared by a plurality of people using the plurality of rooms Ra to Rf. Comfort can be improved by air conditioning by the apparatus 10.

(2)
Moreover, in the common space intermediate | middle air conditioning system 100 of the said embodiment, the indoor unit casing 29 of the ceiling embedded type | formula air conditioning indoor unit 20 has the common space inlet 83 opened to the common space CS side, and the indoor suction opened to the indoor side. Two of the ports 81 are provided as suction ports. The ceiling-embedded air conditioning indoor unit 20 performs air conditioning of the rooms Ra to Rf by performing air conditioning using not only the indoor circulating air RA but also the common air CA. In this way, in the air conditioning of the ceiling-embedded air conditioning indoor unit 20, while reducing the air conditioning load by circulating air that is harmonized and collected in each of the rooms Ra to Rf and air-conditioning the circulating air RA again, The rooms Ra to Rf can be ventilated by the fresh common air CA in the common space CS. Furthermore, in the ceiling-embedded air conditioning indoor units 20a to 20f provided for each of the rooms Ra to Rf, only the sensible heat exchange is performed in the indoor heat exchanger 26 by the shared air CA whose humidity is adjusted in the shared space CS. Thus, the conditioned air whose humidity is adjusted can be supplied to each of the rooms Ra to Rf.

(3)
In the shared space-mediated air conditioning system 100 in the present embodiment, a refrigerant circuit is configured by the multi-outdoor unit 30 including a plurality of outdoor units 30a and 30b. Here, these outdoor units 30a and 30b can be connected to each other in series, connected in parallel to each other, or switched to each other. For this reason, even if it is a case where a refrigerant circuit is comprised with several common space air conditioner 10a, 10b and several ceiling embedding type | mold air conditioner indoor units 20a-20f, the capacity | capacitance per unit of outdoor unit 30a, 30b Can be kept low. Further, even if any of the plurality of outdoor units 30a and 30b fails, it is possible to cope with a failure by connecting the plurality of outdoor units 30a and 30b in parallel to each other.

(4)
In the common space mediated air conditioning system 100 in the present embodiment, the ceiling-embedded air conditioning indoor unit 20 uses the air of the shared space CS adjacent through the partition plates Da to Df, so the design of the indoor unit casing 28 is designed. However, it is easy to make the design thinner and more compact.

(5)
In the shared space-mediated air conditioning system 100 according to the present embodiment, the conditioned air SAa to SAf supplied from the ceiling-embedded air conditioning indoor units 20a to 20f to the rooms Ra to Rf, respectively, is harmonized once by the shared space air conditioner 10. In addition, the air is further air-conditioned in each of the ceiling-embedded air conditioning indoor units 20a to 20f using this harmonized fresh air. Therefore, the conditioned air SA that is sufficiently harmonized can be supplied to the rooms Ra to Rf, the rooms Ra to Rf can be made more comfortable, and the air conditioning in each of the ceiling-embedded air conditioning indoor units 20a to 20f. The load is also reduced.

(6)
In the shared space mediating air conditioning system 100 according to the present embodiment, the shared space air conditioner 10 is configured such that the common air conditioning data commonly requested in the plurality of rooms Ra to Rf or the average air conditioning requested on average. Data is acquired, harmonized control according to the acquired data is performed, and the obtained air is blown out to the common space CS. For this reason, when the shared space air conditioner 10 air-conditions the outside air OA to supply it to the shared space CS, conditioned air required in each of the plurality of rooms Ra to Rf can be provided. Accordingly, in each of the ceiling-embedded air conditioning indoor units 20a to 20f, air close to the air quality required in each of the rooms Ra to Rf can be used during the air conditioning process, so that the air conditioning load can be reduced as a whole. .

(7)
In the common space mediated air conditioning system 100 in the present embodiment, the common adsorption heat exchanger 16 is employed only in the common space air conditioner 10 so that the air can be adjusted to an appropriate humidity, and latent heat exchange is performed. Yes. For this reason, in the indoor heat exchanger 26 of each ceiling-embedded air conditioning indoor unit 20, it is only necessary to perform sensible heat exchange.

(8)
In the common space mediated air conditioning system 100 in the present embodiment, the air conditioning control by the controllers 27 of the ceiling-embedded air conditioning indoor units 20a to 20f takes in unnecessary shared air CA from the shared space CS to the rooms Ra to Rf. Can be suppressed. Thereby, with respect to the room in the state in which the harmonious state is maintained, it is possible to save energy by suppressing excessive air intake that impairs the harmonious state and suppressing the air conditioning load.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the shared space mediating air conditioning system 100 in the above embodiment, the plurality of shared space air conditioners 10a and 10b, the plurality of ceiling-embedded air conditioning indoor units 20a to 20f, and the multi outdoor unit 30 are connected by refrigerant piping. The case where the refrigerant circuit is configured has been described as an example.

  However, the present invention is not limited to this, and the multi outdoor unit 30 does not necessarily have to be connected to the common space air conditioner 10. The common space air conditioners 10a to 10f are connected to other heat source devices such as hot water boilers and refrigerators provided outside, and are configured to circulate cold / hot water, for example. You may make it comprise.

(B)
In the shared space mediating air conditioning system 100 in the above embodiment, a plurality of shared space air conditioners 10a and 10b and a plurality of ceiling-embedded air conditioning indoor units 20a to 20f are provided for the multi outdoor unit 30 composed of a plurality of outdoor units 30a and 30b. As an example, a multi-type system in which is connected is described.

However, the present invention is not limited to this, and the common space air conditioners 10a and 10b and the ceiling-embedded air conditioning indoor units 20a to 20f are connected to the outdoor units 30a and 30b in a one-to-one relationship. It may be a mold system.
(C)
In the shared space mediating air conditioning system 100 in the above embodiment, the case where the dehumidification / humidification is performed only in the shared space air conditioner 10 has been described as an example.

However, the present invention is not limited to this, and not only in the common space air conditioner 10 but also in each of the ceiling-embedded air conditioning indoor units 20a to 20f, for example, by adopting an adsorption indoor heat exchanger, the dehumidification -You may employ | adopt the structure which can perform humidification.
(D)
In the common space mediating air conditioning system 100 in the above embodiment, the common space air conditioner 10 ventilates and air-conditions the common space CS, and the ceiling-embedded air conditioning indoor units 20a to 20f perform ventilation and air conditioning of the rooms Ra to Rf. The case where it is performed has been described as an example.

  However, the present invention is not limited to this, and when the common air CA is taken into the rooms Ra to Rf from the common space CS, processing such as temperature adjustment and humidity adjustment is not necessary, and is simply taken into the common space. When it is sufficient to send fresh air to each room, a simple circulator may be employed instead of providing the indoor heat exchanger 26 in the above-described ceiling-embedded air conditioning indoor units 20a to 20f.

(E)
In the shared space-mediated air conditioning system 100 in the above embodiment, the ceiling-embedded air conditioning indoor unit 20 has been described as an example of the air conditioning indoor unit.
However, the present invention is not limited to this, and as an air conditioner indoor unit employed in the common space intermediate air conditioning system 100, as shown in FIG. 4, the common space CS and each room are combined with the partition plates Da to Df. It may be a wall-mounted air-conditioning indoor unit 220a that is installed on the wall surface so as to partition Ra to Rf and is arranged so as to straddle the common space CS and the rooms Ra to Rf. Even in the case of the wall-mounted air conditioning indoor unit 220a, the same effects as in the above embodiment can be obtained. In addition, when the wall-mounted air conditioning indoor unit 220a is employed, a wall surface that is easy to enter the field of view of the user in the room can be refreshed.

  Here, the wall-mounted air conditioning indoor unit 220a employs a double-suction type sirocco fan as the indoor fan 29, thereby enabling both suction from the shared space CS side and suction from the room Ra while reducing the thickness. ing. The air outlet 84a on the shared space CS side is provided with a slide shutter 284 (or a slide damper or the like), and is configured to be able to adjust the opening degree by being controlled to open and close by the controller 27. Thereby, the amount of air flowing from the shared space CS side to the room Ra side can be adjusted.

(F)
In the common space-mediated air conditioning system 100 in the above embodiment, common air conditioning data that is commonly required for each room Ra to Rf, average air conditioning data that is an average of the air conditioning conditions required for each room Ra to Rf, and the like. The case where the common space air conditioner 10 performs air conditioning control using the above has been described as an example.

However, the present invention is not limited to this, and the elements that serve as a reference for controlling the common space air conditioner 10 include, for example, the air conditioning load of each of the rooms Ra to Rf, the set air conditioning state, or the room of the common air CA. Control based on conditions such as intermittent uptake into Ra to Rf may be possible.
(G)
In the shared space air conditioning system 100 in the above embodiment, the case where humidity adjustment is performed in the shared space air conditioner 10 has been described as an example.

  However, the present invention is not limited to this, and is not limited to humidity control. When taking the air of the outdoor OS into the common space CS, pollen and dust are removed, and various bacteria such as fungi in the air. You may provide further the air-cleaning function which exterminates. As a result, in the plurality of ceiling-embedded air conditioning indoor units 20a to 20f, it is not particularly necessary to clean the air, and the rooms Ra to Rf are fresh and temperature-controlled, dust removal, sterilization, etc. The conditioned air that has been subjected to the above process can be supplied. Thereby, each room Ra-Rf can be made into a still more comfortable state.

  According to the present invention, when ventilation is performed for a plurality of spaces and spaces adjacent to each of the plurality of spaces, it is possible to efficiently improve the comfort of each space. When performing air conditioning, it is particularly useful to use it as an air conditioning system for a building in which common spaces adjacent to each space are provided.

1 is a schematic configuration of a common space-mediated air conditioning system according to an embodiment of the present invention. The refrigerant circuit figure of a common space mediation air conditioning system. The figure which shows the installation condition and internal structure of a ceiling-embedded air conditioning indoor unit. The figure which shows the installation condition and internal structure of the wall surface installation type air-conditioning indoor unit which concern on other embodiment (E).

Explanation of symbols

10 Common space air conditioner (outside air treatment unit)
11 Common space temperature sensor (common space temperature sensor)
16 Common adsorption heat exchanger (adsorption part)
17 Common air conditioning control unit (common space air conditioning unit)
20 Ceiling buried wall air conditioner indoor unit (target space unit)
21 Indoor temperature sensor (target space temperature sensor)
26 Indoor heat exchanger (heat exchanger)
27 Controller (Target space air conditioning unit, set temperature detection unit, intake volume adjustment unit)
28 Indoor unit casing (casing)
29 Indoor fans 30 Multi-outdoor unit (outdoor unit)
81a Indoor inlet (first target side vent)
82a Indoor outlet (second target side vent)
83a Common space inlet (common side vent)
100 Common space intermediary air conditioning system (ventilation system)
CA common air (common space air)
Da ~ Df Partition plate CS Shared space (shared space)
OA outside air OS outdoor Ra ~ Rf room (target space)
RAa to RAf Circulating air (air in the target space)
SAa to SAf conditioned air

Claims (15)

A plurality of target spaces (Ra, Rb...), And a common space (the Da, Db...) That is in contact with each of the plurality of target spaces (Ra, Rb. CS) and a ventilation system (100) for performing ventilation using outdoor (OS) air (OA),
An outside air processing unit (10) for taking the outdoor air (OA) into the shared space (CS);
A plurality of target space units (corresponding to each target space (Ra, Rb...) And sending air (CA) of the shared space (CS) to the target space (Ra, Rb...) 20, 20a, 20b ...),
The target space unit (20) includes a target space air conditioning unit that harmonizes air in the shared space (CS) sent to at least the target space (Ra, Rb...).
Ventilation system (100). The number of the outside air processing units (10) is less than the number of the target space units (20, 20a, 20b ...),
The ventilation system (100) of claim 1. The target space unit (20, 20a, 20b...) Harmonizes only the air (CA) in the shared space (CS) and the air in the target space (RA1, RA2...).
A ventilation system (100) according to claim 1 or 2. It further comprises at least two or more outdoor units (30, 30a, 30b) connected so that the refrigerant circulates between the target space units (20, 20a, 20b ...).
A ventilation system (100) according to any one of the preceding claims. A plurality of the outside air processing units (10, 10a, 10b) are provided,
It further comprises at least two or more outdoor units (30, 30a, 30b) or a heat source unit connected so that the refrigerant circulates between the outside air processing units (10, 10a, 10b).
A ventilation system (100) according to any one of the preceding claims. The target space unit (20, 20a, 20b...) Has a first target side vent (81) and a second target side vent that are open toward the target space (Ra, Rb...). (82) and a casing (28) formed with a shared-side vent (83) opening toward the shared space (CS), at least the shared-side vent (83) and the first target side A heat exchanger (26) that performs heat exchange with air taken into the casing (28) from any one of the vent holes (81).
A ventilation system (100) according to any one of the preceding claims. The target space units (20, 20a, 20b...) Are disposed between the heat exchanger (26) and the second target-side vent (82), and are rotated to drive the heat exchanger. (26) It further has a blower fan (29) that makes the side negative.
A ventilation system (100) according to claim 6. The heat exchanger (26) is disposed at a position that divides the interior of the casing (28) into a space near the first target side vent (81) and a space near the second target side vent (82). ,
The first object side vent (81) is open in a substantially vertical direction,
The second object side vent (82) opens in a substantially horizontal direction,
A ventilation system (100) according to claim 6 or 7. The target space unit (20, 20a, 20b,...) Includes the partition plates (Da, Db,...) Between the shared space (CS) and the plurality of target spaces (Ra, Rb,...).・ It is installed near the ceiling across
A ventilation system (100) according to any one of the preceding claims. The target space unit (20, 20a, 20b,...), Together with the partition plates (Da, Db,...), The shared space (CS) and the plurality of target spaces (Ra, Rb,...).・)
A ventilation system (100) according to any one of the preceding claims. The outside air processing unit (10) further includes a shared space air conditioning unit that harmonizes air taken into the shared space (CS) from the outdoors.
A ventilation system (100) according to any one of the preceding claims. The common space air-conditioning unit acquires common air conditioning data that is substantially commonly requested in the plurality of target spaces (Ra, Rb,...) Or average air conditioning data that is substantially averaged. And performing control to blow out conditioned air to the shared space according to the acquired data.
A ventilation system (100) according to claim 11. A refrigerant circuit that constitutes a refrigeration cycle by circulating the refrigerant including the outside air processing unit (10);
The outside air processing unit (10) further includes an adsorption part (16) that adsorbs or regenerates moisture in the air by being cooled or heated by the temperature of the refrigerant flowing in the refrigerant circuit.
A ventilation system (100) according to any one of the preceding claims. The target space unit (20, 20a, 20b...) Further includes a determination unit that determines whether or not a predetermined condition is satisfied, and air in the shared space (CS) according to a determination result of the determination unit. (CA) is sent to the target space (Ra, Rb...)
The ventilation system according to any one of claims 1 to 13. A common space temperature sensor (11) for detecting the temperature of the common space;
At least one of a target space temperature sensor (21) for detecting the temperature of the target space, or a set temperature detector (27) for setting a target temperature of the target space;
The air from the common space to the target space according to the difference or ratio between the temperature detected by the target space temperature sensor (21) or the set temperature of the target space and the temperature detected by the common space temperature sensor (11) An intake amount adjustment unit (27) for adjusting the intake amount of
Further equipped with,
A ventilation system (100) according to any one of the preceding claims.

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