JP6465769B2 - Branch chamber - Google Patents

Description

  The present invention relates to a branch chamber that branches air sent from an upstream duct into a plurality of downstream ducts in an air conditioning system.

In the entire building air conditioning system, the entire building is air-conditioned by supplying air (warm air or cold air) produced and sent 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.
On the other hand, there is known a branch chamber configured to equalize the amount of air that branches the supplied air into each branch duct. For example, the branch chamber disclosed in Patent Document 1 includes a shunt plate that is configured by a plate extending radially from the center of the branch chamber and extending along the flow path.

JP 2014-77608 A

  However, in the technique disclosed in Patent Document 1 described above, since the space through which air flows is completely divided by the flow dividing plate, the main duct connected to the branch chamber is in the left-right direction immediately before the connection portion with the branch chamber. In the case of being bent in a straight line, there is a problem that the distribution property to each branch duct arranged in the left-right direction with respect to the main duct is lowered. Moreover, the subject that the distribution property to the branch duct arrange | positioned to the up-down direction with respect to the main duct was not considered.

  The present invention has been made to solve the above-described problems, and can distribute air in a predetermined direction from the main duct without being affected by the bending direction of the main duct connected to the branch chamber. The purpose is to increase.

  The branch chamber according to the present invention is provided on one side wall of the housing, and is provided on at least two side walls other than the inlet-side opening through which air is fed by the connected first transport member and the one side wall of the housing. The outlet side opening for sending the air sent from the inlet side opening to the second conveying member to be connected and the two inclined surfaces inclined toward the air feeding direction are connected at an angle. A guide vane arranged with the connecting portion of the inclined surface facing the air feeding direction, and the outlet side opening is provided on the side wall of the housing in at least two stages in a direction perpendicular to the air feeding direction. The guide vane includes a first guide vane that distributes the air fed from the opening on the inlet side along the two inclined surfaces in the first direction and the second direction, and the air along the two inclined surfaces. The third direction and the In which the and a second guide vanes distributed direction.

  According to the present invention, it is possible to improve the distribution of the air fed from the main duct to each branch duct without being affected by the bending direction of the main duct connected to the branch chamber.

It is a figure which shows schematic structure of the whole building air conditioning system provided with the branch chamber which concerns on Embodiment 1. FIG. FIG. 3 is a diagram showing a configuration of a branch chamber according to the first embodiment. It is the figure which looked at the branch chamber which concerns on Embodiment 1 from the main duct attachment part side. It is a figure which shows the structure of the guide vane of the branch chamber which concerns on Embodiment 1. FIG. It is a figure which shows the other structure of the branch chamber which concerns on Embodiment 1. FIG.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a schematic configuration of a whole building air conditioning system including a branch chamber according to Embodiment 1 of the present invention.
The entire building air conditioning system shown in FIG. 1 performs air conditioning for a plurality of rooms, and here, a total of four rooms, the first floor rooms 100a and 100b and the second floor rooms 200c and 200d in the building, are provided. An example of the case is shown.

  The entire building air conditioning system includes an air conditioner 1 that produces and sends out air (cold air or hot air), a supply chamber 2 into which air produced by the air conditioner 1 is introduced, and a plurality of main ducts that are connected to the supply chamber 2 at one end. 3 (3a, 3b, first conveying member), a plurality of branch chambers 4 (4a, 4b) to which the other ends of the respective main ducts 3 are connected, and the branch chambers 4 and outlets 7 ( 7a to 7d) and a plurality of branch ducts 5 (5a to 5d, second conveying member), and a ventilation device 6 that takes in outside air 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. Create and send out cold 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 a plurality of main ducts 3 is connected to the supply chamber 2, and the air introduced from the indoor unit 11 into the supply chamber 2 is branched into the main ducts 3. The other end of each main duct 3 is connected to each branch chamber 4. The branch chamber 4 is installed in a space behind the ceiling, for example. One end of a plurality of branch ducts 5 is connected to each branch chamber 4, and the air introduced from the main duct 3 into the branch chamber 4 branches to each branch duct 5. The configuration of the branch chamber 4 will be described later.

  The other end of each branch duct 5 is connected to the air outlet 7 provided in, for example, the ceiling of each of the rooms 100a, 100b, 200c, and 200d, and the air sent out by the indoor unit 11 is finally discharged from the air outlet. 7 is blown out into each room.

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 8 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 9, 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.

Next, the configuration of the branch chamber 4 will be described with reference to FIG.
FIG. 2 is a perspective view showing the configuration of the branch chamber according to Embodiment 1 of the present invention. FIG. 2 shows a state in which the casing 41 constituting the branch chamber 4 is a rectangular parallelepiped, and the upper surface portion of the rectangular parallelepiped is removed.
An inlet side opening 42 into which air is sent by the main duct 3 is formed on one side wall 41a of the casing 41, and a cylindrical main duct attachment portion (first conveyance member attachment portion) is formed in the inlet side opening 42. 43) is erected.

  In addition, on the side walls 41b and 41c having a plane perpendicular to the plane of the one side wall 41a, the outlet side opening 44 for sending air sent from the main duct 3 through the inlet side opening 42 to the branch duct 5 is provided. 45 are formed. In addition, cylindrical branch duct attaching portions 46 and 47 are provided upright at the outlet side openings 44 and 45. In the example of FIG. 2, four branch duct attachment portions 46 are provided on the side wall 41b, and four branch duct attachment portions 47 are provided on the side wall 41c.

  Further, in the main duct mounting portion 43, the air sent from the main duct 3 is distributed to the outlet side openings 44 and 45 formed in the side walls 41b and 41c, and the air volume to be distributed is made uniform. One guide vane 48 and a second guide vane 49 are provided. Similarly, a third guide vane 50 for distributing air to the outlet side openings 44 and 45 and for equalizing the amount of air to be distributed is provided inside the housing 41.

  The air sent from the main duct 3 is first distributed in the vertical direction (first direction and second direction) of the casing 41 by the first guide vanes 48 in the main duct mounting portion 43. In other words, it is distributed to the outlet side openings 44 and 45 located in the upper stage of the casing 41 and the outlet side openings 44 and 45 located in the lower stage. Next, the second guide vane 49 in the main duct attachment portion 43 distributes the casing 41 in the left-right direction (third direction and fourth direction). In other words, it is distributed to the outlet side opening 44 on the side wall 41b side and the outlet side opening 45 on the side wall 41c side. Further, the air sent into the casing 41 is again distributed in the vertical direction (first direction and second direction) of the casing 41 by the third guide vane 50. Thus, the four outlets of the side wall 41b Air having a uniform air flow is branched into the side opening 44 and the four outlet openings 45 of the side wall 41b.

Next, the details of the guide vane will be described.
FIG. 3 is a front view of the branch chamber 4 according to the first embodiment of the present invention as viewed from the main duct mounting portion 43 side.
As shown in FIG. 3, the first guide vane 48 and the second guide vane 49 pass through the center position O of the inlet side opening 42 of the main duct mounting portion 43, and both ends are inside the inlet side opening 42. Fixed to the peripheral surface. The first guide vane 48 distributes air to an upper-side outlet-side opening (not shown) provided on the side wall and a lower-side outlet-side opening (not shown), and the upper-side branch duct mounting portion 46a, The distribution is made in the direction of 47a and in the direction of the branch duct mounting portions 46b and 47b on the lower side. The second guide vane 49 distributes air to an outlet side opening (not shown) on the right side wall and an outlet side opening (not shown) on the left side wall with respect to the air feeding direction. Are distributed in the direction of the branch duct mounting portions 47a and 47b of the left side wall.

  The arrangement positions of the first guide vane 48 and the second guide vane 49 are determined based on the positions where the outlet side openings 44 and 45 are provided. In the example of FIG. 3, the first guide vane 48 is disposed at a position that passes through the center position O of the entrance-side opening 42 and divides the entrance-side opening 42 in the vertical direction of the drawing. The second guide vane 49 is disposed at a position that passes through the center position O of the inlet side opening 42 and divides the inlet side opening 42 into two in the left-right direction on the paper surface provided with the outlet side openings 44 and 45. ing. The regions A, B, C, and D divided by the first guide vane 48 and the second guide vane 49 are configured to have an equal area.

  On the other hand, the third guide vane 50 is disposed in the housing 41 so that it passes through the center position O of the inlet side opening 42 and the longitudinal direction is parallel to the longitudinal direction of the first guide vane 48. As shown in FIG. 3, the third guide vane 50 is located behind the second guide vane 49 when viewed from the air feeding direction. As shown in FIG. 2, both end portions of the third guide vane 50 are located at the center positions of the side walls 41b and 41c, and the outlet side openings 44 and 45 positioned in the front stage with respect to the air feeding direction and the rear stage. It fixes to the side walls 41b and 41c between the exit side opening parts 44 and 45 located.

  The arrangement of the first guide vane 48 to the third guide vane 50 shown in FIG. 2 and FIG. 3 is an example, and as described above, it is appropriately adjusted depending on the position where the outlet side openings 44 and 45 are provided. The In the example of FIG. 3, the case where the regions A, B, C, and D divided by the first guide vane 48 and the second guide vane 49 have the same area is shown. Are determined based on the positions where the outlet openings 44 and 45 are provided, and need not be equal.

FIG. 4 is a view showing guide vanes constituting the branch chamber 4 according to Embodiment 1 of the present invention.
4A is a perspective view of the guide vane, and FIG. 4B is a view of FIG. 4A viewed from the X direction. In FIG. 4, the first guide vane 48 will be described as an example.
The first guide vane 48 is formed by bending a rectangular plate member at an angle Q along the center line P. This is a mountain shape having a tip portion (connecting portion) 48a at the bending position indicated by the center line P, and inclined surfaces 48b and 48c extending from the tip portion 48a at an angle Q.

  The front end 48a of the first guide vane 48 is disposed to face the air fed from the main duct 3, and the inclined surfaces 48b and 48c are inclined toward the air feeding direction. The air fed in moves along the inclined surfaces 48b and 48c from the tip 48a. Due to the movement along the inclined surfaces 48b and 48c, the air passes through the upper and lower sides of the first guide vane 48 and is distributed. Thus, since the guide vane has a mountain shape and the tip 48a is disposed opposite to the air to be fed, pressure loss when the air passes through the guide vane is suppressed. Moreover, since the inclined surface which forms the breadth of the angle set from the front-end | tip part of a guide vane is provided, the distribution performance of air improves.

  The angle Q at which the plate member is bent at the center line P is set based on the arrangement position of the guide vanes, the branch duct into which the air fed from the main duct 3 is branched, and the like. For example, each of the first guide vane 48, the second guide vane 49, and the third guide vane 50 shown in FIG. 2 can be set to have different bending angles.

The first guide vane 48 to the third guide vane 50 shown in FIG. 2 may be arranged as shown in FIG.
FIG. 5 is a view showing another configuration example of the guide vanes of the branch chamber 4 according to Embodiment 1 of the present invention. FIG. 5A is a perspective view showing another configuration of the branch chamber 4, and FIG. 5B is a perspective view showing a configuration of the guide vane.
FIG. 5A shows a state in which the casing 41 constituting the branch chamber 4 is a rectangular parallelepiped, and the upper surface portion of the rectangular parallelepiped is removed. Moreover, since it is the same as that of the structure shown in FIG. 2 except the arrangement position and arrangement shape of a guide vane, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the branch chamber 4 shown in FIG. 5, a first guide vane 48 is provided in the main duct attachment portion 43, and a fourth guide vane 51 is provided in the central portion of the casing 41. The first guide vane 48 has the same configuration as that in FIG. 2, and distributes the air fed from the main duct 3 in the upper and lower directions of the casing 41. The 4th guide vane 51 has combined the 1st member 52 and the 2nd member 53 which are the plate-shaped members which have a mountain shape in the shape of a cross. The first member 52 and the second member 53 are combined so as to be orthogonal to each other at the longitudinal center position. As in the configuration shown in FIG. 4, the first member 52 and the second member 53 bend the plate-like member at an angle set by the center line in the longitudinal direction, and have the end portions 52a and 53a at the folding positions. However, it has a mountain shape having inclined surfaces 52b, 52c, 53b, 53c that spread at an angle set from the tip portions 52a, 53a.

In the fourth guide vane 51, the distal end portion 52 a of the first member 52 and the distal end portion 53 a of the second member 53 are arranged to face the air fed from the main duct 3. Further, both end portions of the first member 52 are fixed to the center of the side walls 41 b and 41 c of the housing 41, and both end portions of the second member 53 are fixed to the center of the upper wall and the lower wall of the housing 41. Since the fourth guide vane 51 has a cross shape, the air sent from the main duct 3 moves along the inclined surfaces 52b and 52c from the tip 52a and from the tip a to the inclined surfaces 53b and 53c. The air is distributed along the casing 41 in the vertical and horizontal directions.
The bending angle of the first member 52 and the first member 52 and the second member 53 constituting the first guide vane 48 and the fourth guide vane 51 is determined depending on the arrangement position of the guide vane and the air fed from the main duct. It is set as appropriate based on whether or not it is branched.

  As described above, according to the first embodiment, the first guide vane 48 that distributes air in the vertical direction of the casing 41 and the air in the horizontal direction of the casing 41 are distributed inside the main duct mounting portion 43. Since the second guide vane 49 is provided, the air sent from the main duct 3 is distributed vertically and horizontally in the housing 41 and branched to each branch duct 5 with a uniform air volume. Can do. Further, the air volume of the air branched into each branch duct 5 can be made uniform without being affected by the bending direction of the main duct 3.

  Further, according to the first embodiment, the third guide vane 50 or the fourth guide vane 51 that distributes air to the central portion in the housing 41 is provided in addition to the inside of the main duct attachment portion 43. Since it comprised, even when it has provided two steps | paragraphs of branch ducts in the air feeding direction, the rectification | straightening property to the branch duct located in a back | latter stage can be improved with respect to the air feeding direction.

  In addition, according to the first embodiment, the first to fourth guide vanes 48, 49, 50, 51 are inclined so as to spread from the front end portions 48a, 49a, 50a, 51a at an angle set from the front end portion. Since it has the mountain shape which has a surface, air moves and distributes along an inclined surface from a front-end | tip part, and can improve rectification | straightening property.

  In addition, in Embodiment 1 mentioned above, although the plate-shaped member was bent and the structure which provided the mountain-shaped guide vane which has a front-end | tip part and an inclined surface was shown, it is not limited to this shape. The guide vane may be configured by a triangular prism-shaped member, for example, as long as it has a tip portion that suppresses air pressure loss and an inclined surface that guides the movement of air.

  Moreover, in Embodiment 1 mentioned above, although the structure which provides the guide vane which bent the plate-shaped member was shown, two plate-shaped members are connected using a hinge etc., and the two inclined surfaces are set to the set angle. It is good also as a structure which can be changed so that it may spread.

  Moreover, in Embodiment 1 mentioned above, although the shape of the housing | casing 41 of the branch chamber 4 was shown as a rectangular parallelepiped, it is not limited to this shape. What is necessary is just to adjust suitably the arrangement position of a main duct attaching part, a branch duct attaching part, and a guide vane according to a housing | casing shape.

  Moreover, in Embodiment 1 mentioned above, although the structure which arrange | positions the exit side opening parts 44 and 45 in the two side walls 41b and 41c orthogonal to the one side wall 41a which has arrange | positioned the entrance side opening part 42 was shown, exit side opening The side wall on which the portion is provided is not limited to two surfaces, and the outlet side opening may be provided on the other side wall.

  In addition, in Embodiment 1 mentioned above, although the structure which forms the exit side opening parts 44 and 45 of 2 rows 2 columns in the side walls 41b and 41c was shown, it is not limited to the said formation position. The effects of the present invention can be obtained as long as the branch chamber has at least two outlet openings on one side wall in a direction orthogonal to the air feeding direction. In the case of having three or more outlet-side openings, the number of guide vanes arranged is adjusted according to the number of outlet-side openings.

  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.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Supply chamber 3, 3a, 3b Main duct 4, 4a, 4b Branch chamber 5, 5a-5d Branch duct 6 Ventilator 7, 7a-7d Outlet 8 Exhaust duct 9 Intake duct 11 Indoor unit 12 Outdoor unit 41 Housing 41a, 41b, 41c Side wall 42 Entrance side opening 43 Main duct attachment part 44, 45 Exit side opening 46, 47 Branch duct attachment part 48 First guide vanes 48a, 52a, 53a Tip parts 48b, 48c, 52b , 52c, 53b, 53c Inclined surface 49 Second guide vane 50 Third guide vane 51 Fourth guide vane 52 First member 53 Second member

Claims (4)

An inlet side opening provided on one side wall of the housing and into which air is sent by a first conveying member connected;
An outlet side opening provided on at least two side walls other than the one side wall of the housing, and sending out air sent from the inlet side opening to a second transport member connected thereto;
Two inclined surfaces inclined toward the air feeding direction are connected at an angle, and a guide vane arranged with the connecting portions of the two inclined surfaces facing the air feeding direction,
The outlet side opening is provided on the side wall of the housing in at least two stages in a direction orthogonal to the air feeding direction,
The guide vane includes a first guide vane that distributes the air fed from the inlet-side opening in a first direction and a second direction along the two inclined surfaces, and the air is inclined in the two directions. A branch chamber comprising a second guide vane that distributes along a plane in a third direction and a fourth direction.   2. The branch chamber according to claim 1, wherein the first guide vane is fixed to an inner peripheral surface of a first transport member mounting portion that connects the inlet-side opening and the first transport member. .   The second guide vane is fixed to an inner peripheral surface of a first transport member mounting portion that connects the inlet side opening and the first transport member, or an inner surface of a side wall of the housing. The branch chamber according to claim 1 or 2. The outlet side opening is provided on the side wall of the housing in two stages in the air feeding direction,
The guide vane is fixed to an inner surface of a side wall of the housing between the outlet side opening located in the front stage and the outlet side opening located in the rear stage with respect to the air feeding direction, and the air 3. A third guide vane that distributes the gas in the first direction and the second direction along the two inclined surfaces is provided. 5. A branch chamber according to item.

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