JP2016099084A - Branch chamber for air conditioning and whole building air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To acquire a duct for air conditioning capable of flexibly corresponding to an environment in which it is installed, and a whole building air conditioning system having the duct for air conditioning.SOLUTION: A branch chamber 4a (4b) has: an introduction side connection port 42a (42b) for introducing air; and a plurality of leading-out side connection ports 41a (41b) for branching introduced air and leading it out. It is configured so that a shape formed by the plurality of leading-out side connection ports 41a (41b) and a shape formed by the introduction side connection port 42a (42b) are different from each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a branch chamber for branching air passing through an air conditioning duct, which is a passage for air in an air conditioning system, to supply air to a predetermined space, and an entire building air conditioning system having the branch chamber. Is.

  In the entire building air conditioning system, the entire building is air-conditioned by supplying the air produced and sent out by the air conditioner to each room through a duct. The air sent out by the air conditioner first enters the main duct from the supply chamber and then branches into the branch duct in the branch chamber.

The branch chamber is for branching and guiding the air produced and sent out by the air conditioner to each room in the building. For example, Patent Document 1 discloses a branched chamber for an air conditioner provided with one inlet and a plurality of outlets.
JP 2003-74958 A

  By the way, when the branch chamber as shown in Patent Document 1 is arranged between the floors or in the back of the ceiling, if the dimension of the chamber body in the height direction is large, it is necessary to take a lot of ceiling down accordingly. The height of the living space will be affected.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an air conditioning branch chamber that can flexibly cope with the environment of the place where it is arranged.

  The branch chamber for air conditioning according to the present invention has an inlet side connection port for introducing air and a plurality of outlet side connection ports for branching and introducing the introduced air, and a shape formed by the plurality of inlet side connection ports And the shape formed by the outlet side connection port are different from each other.

  According to the present invention, it is possible to obtain an air conditioning branch chamber that can flexibly cope with the environment of the place where it is arranged.

Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram of an entire building air conditioning system including an air conditioning branch chamber according to Embodiment 1 of the present invention. Main air ducts 3a and 3b, branch ducts 5a to 5d, exhaust ducts 8a, intake ducts 8b, and the like, which will be described later, serve as air passage ducts. This whole building air conditioning system performs air conditioning for a plurality of rooms, and here, in the case of a total of four rooms, the first floor rooms 100a and 100b and the second floor rooms 200c and 200d in the building. Is shown as an example.

  The entire building air conditioning system includes an air conditioner 1 that produces and sends out cold air or warm air (hereinafter referred to as air), a supply chamber 2 into which air produced by the air conditioner 1 is introduced, and a main duct 3a that is connected to the supply chamber 2 at one end. , 3b, branch chambers 4a and 4b to which the other ends of the main ducts 3a and 3b are respectively connected, branch ducts 5a to 5d connecting the branch chambers 4a and 4b and the air outlets 7a to 7d of each room, and outside air It is composed of a ventilation device 6 that takes in and discharges indoor air.

  The air conditioner 1 includes an indoor unit 11 installed in a machine room 200e in a building and an outdoor unit 12 installed outside the building. The indoor unit 11 is operated by a refrigerant, a compressor, a heat exchanger, a fan, and the like. To produce cool air or warm air. Air produced and sent out by the indoor unit 11 in cooperation with the outdoor unit 12 is introduced into the supply chamber 2 installed at the upper part of the indoor unit 11.

  One end of two main ducts 3a and 3b is connected to the supply chamber 2, and the air introduced from the indoor unit 11 into the supply chamber 2 is branched into two into the main ducts 3a and 3b. The other ends of the main ducts 3a and 3b are connected to the branch chambers 4a and 4b, respectively. The main ducts 3a and 3b have connection ports 31a and 31b connected to the supply chamber 2 at one end and connection ports 32a and 32b connected to the branch chambers 4a and 4b. . Between the connection ports 31a and 31b and the connection ports 32a and 32b, bent portions 33a and 33b that change in the axial direction of the main ducts 3a and 3b are formed as a part of the main ducts 3a and 3b.

  The portions of the main ducts 3a and 3b that are closer to the connection ports 31a and 31b than the bent portions 33a and 33b are circular cylindrical ducts whose cross sections are the same as those of the connection ports 31a and 31b. The portions of 3b closer to the connection ports 32a and 32b than the bent portions 33a and 33b are flat ducts having the same cross section as the connection ports 32a and 32b.

  The main ducts 3a and 3b are, for example, ducts configured in a bellows shape, so-called flexible ducts, and are configured to be bent at the bent portions 33a and 33b. The entire main ducts 3a and 3b may be configured in a bellows shape, or only a part of the main ducts 3a and 3b (a portion corresponding to the bent portions 33a and 33b) may be configured in a bellows shape. . Alternatively, only a part of the main ducts 3a and 3b may be made of an easily deformable material. However, if the main ducts 3a and 3b are configured in an accordion shape, the main ducts 3a and 3b can be bent at arbitrary locations, so that the design situation of the building can be dealt with more flexibly. A plurality of the bent portions 33a and 33b may be provided. In addition, for example, the main ducts 3a and 3b are not bent before being placed on the building but are formed in a straight tube shape, and are bent at the bent portions 33a and 33b during the placement and construction.

  The other ends of the branch ducts 5a to 5d are connected to the air outlets 7a to 7d provided in, for example, the ceilings of the rooms 100a, 100b, 200c, and 200d, respectively. It blows out into each room from the blower outlets 7a-7d. In the illustrated example, the first floor rooms 100a and 100b are air-conditioned through the main duct 3a, and the second floor rooms 200c and 200d are air-conditioned through the main duct 3b, so that an air conditioning zone is set for each floor. ing.

    In addition, room air enters the machine room 200e from each room through a corridor or the like, and is exhausted outside the building through the exhaust duct 8a by the ventilation device 6 having a fan or the like. For example, in the case of air in the rooms 100a and 100b, the air enters the first-floor corridor 100f through the ventilation holes provided in the lower portions of the rooms 100a and 100b, passes through the stairs 100g to the second-floor corridor 200h, and the corridor. It enters the machine room 200e through the ventilation hole between 200h and the machine room 200e. Further, the ventilator 6 also has a function of taking outside air through the intake duct 8 b, and the taken outside air is sent to the indoor unit 11. The above operation of the entire building air conditioning system is controlled by a control unit (not shown) that comprehensively controls the entire building air conditioning system.

  Here, FIG. 2 shows a perspective view of the branch chambers 4a and 4b. In FIG. 2A, the indoor unit 11, the supply chamber 2, the main ducts 3a and 3b, and the ventilation device 6 are also shown. FIG. 2 (b) shows only the branch chamber 4a (4b).

  In the branch chambers 4a and 4b, circular connection ports (outlet side connection ports) 41a and 41b for connecting to the branch ducts 5a to 5d are projected. In the present invention, the circular shape means a substantially perfect circle. One end of two branch ducts 5a and 5b is connected to the connection port (outlet side connection port) 41a, and the air introduced from the main duct 3a into the branch chamber 4a goes to the branch ducts 5a and 5b. Branches into two. Similarly, one end of two branch ducts 5c and 5d is connected to the connection port (outlet side connection port) 41a of the branch chamber 4b, and the air introduced into the branch chamber 4b from the main duct 3b is The branched ducts 5c and 5d are branched into two to be led out. In the first embodiment, the outer diameter of the branch ducts 5a to 5d is about 100 to 150 mm. In the case of the whole building air conditioning system shown in FIG. 1, there is no problem if two outlet connection ports 41a and 41b are provided, but in preparation for the addition of branch ducts, etc., the outlet side as shown in FIG. Branch chambers 4a and 4b provided with six connection ports 41a and 41b may be used.

  In order to connect the connection ports 32a and 32b whose main ducts 3a and 3b have an elliptical cross section and the branch chambers 4a and 4b, respectively, the branch chambers 4a and 4b have an elliptical connection port (introduction side connection port) 42a. , 42b are projected.

  When the branch chambers 4a and 4b are installed in the space behind the ceiling as shown in FIG. 1, a part of the main ducts 3a and 3b heading from the supply chamber 2 to the branch chambers 4a and 4b are part of the ceiling. Need to be placed in the space. By the way, with respect to the ceiling, it is required to suppress the ceiling from falling so as not to affect the height of the living space, and the height of the space behind the ceiling may be low in the first place. Therefore, when the main ducts 3a and 3b are disposed between the supply chamber 2 and the branch chambers 4a and 4b, the portions having an elliptical cross section are disposed so as to pass through the space behind the ceiling.

  Thus, by providing the branch-side chambers 4a and 4b arranged in the space behind the ceiling with the elliptical introduction-side connection ports 42a and 42b, the height of the branch chambers 4a and 4b can be increased. Dimensions can be reduced. Therefore, it is possible to arrange the branch chambers 4a and 4b even in an environment where the height of the space behind the ceiling is low. The supply chamber 2 installed in the machine room 200e and the branch installed in the space behind the ceiling. The chambers 4a and 4b can be connected.

Note that the indoor unit 11 of the entire building air conditioning system has a vertically long box shape, and the supply chamber 2 provided in the upper part thereof has a box-shaped hollow chamber body 21 and a circular cross-section projecting from the upper surface of the chamber body 21. It has cylindrical connection ports 22a and 22b. When the indoor unit 11 is installed on the floor of a building, the connection ports 22a and 22b (openings) face toward the ceiling, so that the main ducts 3a and 3b are hung down from the ceiling and the openings face downward. The connection ports 31a and 31b can be easily faced to each other. The connection ports 31a and 31b of the main ducts 3a and 3b formed with a slightly larger diameter than the connection ports 22a and 22b are attached by, for example, fitting. The connection ports 31a and 31b of the main ducts 3a and 3b have, for example, an outer diameter of about 350 mm and an inner diameter of about 250 mm. The wall thickness of 50 mm includes a heat insulating layer such as a glass wool heat insulating material.
In this embodiment, the area of the connection ports 31 a and 31 b of the main duct is within the area of the upper surface of the supply chamber 2. There is an effect that can be done.

  Unlike the shape shown in FIG. 2, if all the main ducts 3a and 3b have a uniform circular cross section, that is, the main ducts 3a and 3b are formed as cylindrical ducts having an outer diameter of about 350 mm. When configured, the inlet side connection ports 42a and 42b of the branch chambers 4a and 4b must also be configured in a circular shape of about 350 mm. Accordingly, the ceiling falls correspondingly, and if the height of the space behind the ceiling is less than 350 mm, the branch chambers 4a and 4b cannot be arranged in the space behind the ceiling.

  However, when the branch chambers 4a and 4b having the elliptical introduction side connection ports 42a and 42b are used, the height of the introduction side connection ports 42a and 42b (the minor axis of the ellipse as a cross section) is suppressed to 350 mm or less, for example. It can be about 200 mm. Accordingly, the height of the branch chambers 4a and 4b can be suppressed to a level slightly larger than 200 mm in accordance with this, so that the ceiling can be prevented from being lowered, and the branch is branched even if the height of the space behind the ceiling is low. The chambers 4a and 4b can be arranged. In other words, for the main ducts 3a and 3b, one end connecting to the branch chambers 4a and 4b and the part covering the back of the ceiling have a flat cross section, respectively, and hang down from the ceiling toward the indoor unit 11 to the connection port. One end forming 31a and 31b has a circular cross-sectional shape. In order to be able to use a single flexible duct having the same diameter as the main duct 3a, the outer peripheral length of the cylindrical connection port 22a protruding from the upper surface of the chamber body 21 and the elliptical shape of the branch chamber 4a. The outer peripheral length of the introduction side connection port 42a is formed to be substantially the same length. Specifically, when the inner diameter of the main duct 3a is 250 mm, the outer peripheral length of the connection port 22a and the introduction-side connection port 42a are respectively formed to values of 785 mm obtained by multiplying the circumference by 250 mm and considering the allowance. The Of course, the same goes for the main duct 3b.

  In the above description, the shape of the inlet side connection ports 42a and 42b of the branch chambers 4a and 4b is an elliptical shape. However, the shape may be any cross-sectional shape that can suppress the height, and is not limited to an elliptical shape. Various flat shapes including a rounded rectangular shape (so-called track shape for track and field), an egg shape and the like in which two arcs facing each other are connected by parallel line segments may be used. In addition, the dimension in the height direction of the introduction side connection ports 42a and 42b is set so as to suppress the height of the branch chambers 4a and 4b, and depends on the restriction in the height direction between the floors and the ceiling. It may be determined as appropriate. Preferably, the dimension in the height direction of the introduction side connection ports 42a and 42b may be approximately the same as the dimension in the height direction of the extraction side connection ports 41a and 41b. However, in the present invention, the size relationship between the height direction dimensions of the outlet side connection ports 41a and 41b and the dimension of the introduction side connection ports 42a and 42b in the height direction should not be questioned. May be larger.

  As described above, according to the first embodiment, the branch chambers 4a and 4b have the outlet side connection ports 41a and 41b and the inlet side connection ports 42a and 42b, and the shape of the outlet side connection ports 41a and 41b. The inlet side connection ports 42a and 42b are different in shape. Accordingly, the branch chambers 4a and 4b can flexibly cope with the environment of the place where they are arranged.

  In the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

It is a schematic block diagram of the whole building air-conditioning system provided with the air-conditioning branch chamber which concerns on Embodiment 1 of this invention. It is a perspective view of the branch chamber for air conditioning which concerns on Embodiment 1 of this invention.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Supply chamber 3a, 3b Main duct 4a, 4b Branch chamber 5a-5d Branch duct 6 Ventilator 7a-7d Outlet 8a Exhaust duct 8b Intake duct 11 Indoor unit 12 Outdoor unit 21 Chamber main body 22a, 22b Connection port 31a , 31b Connection port 32a, 32b Connection port 33a, 33b Bent part 41a, 41b Connection port (outlet connection port)
100a, 100b Room 100f Corridor 100g Stairs 200c, 200d Room 200e Machine room 200h Corridor

Claims (5)

An inlet connection port for introducing air;
A branch chamber for air conditioning having a plurality of outlet side connection ports for branching and introducing the introduced air;
A branch chamber for air conditioning, wherein a shape formed by the inlet side connection port and a shape formed by the plurality of outlet side connection ports are different from each other.   2. The air conditioning branch chamber according to claim 1, wherein the plurality of outlet side connection ports have a circular shape, and the introduction side connection port has a flat shape. In the entire building air conditioning system that guides the air produced and sent out by the indoor unit to the air outlets provided in each of the plurality of rooms and air-conditions the plurality of rooms,
An entire building air conditioning system comprising the air conditioning branch chamber according to claim 1. A duct connected to the indoor unit, through which air sent from the indoor unit passes;
The whole building air conditioning system according to claim 3, wherein a connection port at one end of the duct is connected to an introduction side connection port of the air conditioning branch chamber. The duct is
Having a bent portion between the one end connection port and the other end connection port,
The cross section of at least a part of the portion on the connection port side of the one end than the bent portion has a flat shape,
5. The entire building air conditioning system according to claim 3, wherein a cross section of a portion closer to the connection port at the other end than the bent portion has a circular shape.