JP7258464B2 - HEAT EXCHANGE UNIT AND MANUFACTURING METHOD THEREOF - Google Patents

Description

The present invention relates to a heat exchange unit and its manufacturing method.

Conventionally, there is known a heat exchange unit composed of a machine room in which a compressor, a receiver, an accumulator, etc. are arranged, and a heat exchanger room in which an air heat exchanger, a fan, etc. are arranged (Patent Document 1).
The heat exchange unit disclosed in Patent Document 1 has a pair of heat exchangers arranged in a substantially V shape, thereby reducing the unit height and increasing the heat exchange area of the heat exchangers. .

JP 2013-234802 A

However, when arranging a pair of heat exchangers in a substantially V-shape as in Patent Document 1, each heat exchanger needs to be installed with an inclination from the vertical direction. It is not stable and requires a lot of labor to assemble. Moreover, since the posture of the heat exchanger is not stable, it takes a lot of labor to install a blower for blowing outside air to the heat exchanger.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and is a heat exchanger that enables a fan to be installed by arranging a pair of heat exchangers in a substantially V-shape without requiring a lot of labor. It aims at providing a unit and its manufacturing method.

In order to solve the above problems, the present invention employs the following means.
A heat exchange unit according to an aspect of the present invention includes a pair of panel-shaped heat exchangers, a pair of blowers that blow outside air to the pair of heat exchangers, and a heat exchanger that houses the pair of heat exchangers. a room, a top plate covering the upper part of the heat exchanger room and to which the pair of blowers are attached, and a connection that connects the pair of heat exchangers at their longitudinal ends while the longitudinal directions of the pair of heat exchangers are aligned. a portion, wherein the heat exchanger chamber has an outer shell formed by a heat exchanger chamber housing, a lateral side surface of the heat exchanger chamber housing is configured by a plate-shaped side wall, and the connecting portion is attached to the longitudinal end portion of the pair of heat exchangers arranged inside the heat exchanger chamber housing, and the heat exchange distance between the pair of heat exchangers is greater than the arrangement interval of the lower ends of the pair of heat exchangers. The pair of heat exchangers are connected so that the upper ends of the heat exchangers have a wide arrangement interval and form a substantially V shape when viewed from the longitudinal direction.

According to the heat exchange unit according to one aspect of the present invention, since the pair of panel-shaped heat exchangers are connected by the connecting portion so as to form a substantially V shape when viewed from the longitudinal direction, the posture of the single unit is stable. A pair of heat exchangers can be easily assembled by maintaining a stable posture of the heat exchangers. Further, the pair of blowers attached to the top plate can be installed in the heat exchange unit while maintaining the pair of heat exchangers in a stable posture.
Furthermore, since a pair of blowers is attached to the single top plate, the work of installing the blowers is easier than when blowers are individually attached to each of a plurality of top plates. Also, since the pair of fans is positioned with respect to the top plate, the installation interval between the pair of fans can be set accurately.

In the heat exchange unit according to an aspect of the present invention, the connecting portion is attached to the longitudinal ends of the pair of heat exchangers and is formed to have a substantially V shape when viewed from the longitudinal direction. and a second bracket connected to the upper end of the first bracket and arranged horizontally.
By attaching the longitudinal ends of the pair of heat exchangers to the first bracket formed to have a substantially V shape, the pair of heat exchangers are securely fixed to the connecting portion. In addition, since the second bracket arranged horizontally is connected to the upper end of the first bracket, the arrangement interval between the upper ends of the pair of heat exchangers is reliably fixed, and the posture of the pair of heat exchangers is further stabilized. can be made

In the heat exchange unit according to an aspect of the present invention, the connecting portion may connect the pair of heat exchangers at both ends in the longitudinal direction.
Since the pair of heat exchangers are connected at both ends in the longitudinal direction by the connecting portions, the posture of the pair of heat exchangers can be further stabilized.

In the heat exchange unit according to one aspect of the present invention, the top plate may be attached to the connecting portion.
By attaching the top plate to the connecting portion, the pair of heat exchangers and the pair of fans are integrated together with the top plate, further improving the assembling efficiency of the heat exchange unit.

In the heat exchange unit according to one aspect of the present invention, the top plate may be made of sheet metal.
By making the top plate made of sheet metal, the strength of the top plate can be sufficiently secured, and the pair of blowers can be reliably supported on the top plate.

In the heat exchange unit according to an aspect of the present invention, each of the pair of blowers includes a fan and a fan motor that drives the fan, and the top plate includes a pair of bell mouths covering the rotation axis of the fan. may be formed.
By covering the rotation axis of the fan with the bell mouth, the blowing characteristics of the blower are improved.

A method for manufacturing a heat exchange unit according to an aspect of the present invention includes a pair of panel-shaped heat exchangers, a pair of blowers for blowing outside air to the pair of heat exchangers, and the pair of heat exchangers. A method for manufacturing a heat exchange unit comprising a heat exchanger chamber, a top plate covering the upper part of the heat exchanger chamber, and a connecting portion connecting the pair of heat exchangers , a mounting step of mounting the pair of blowers on the top plate, wherein an outer shell is formed by the heat exchanger chamber housing, the lateral side surface of the heat exchanger chamber housing is formed by a plate-shaped side wall, and the connecting step is performed. a connecting step of connecting the pair of heat exchangers arranged inside the heat exchanger chamber housing at one end in the longitudinal direction with the longitudinal directions of the pair of heat exchangers arranged inside the heat exchanger chamber housing aligned with each other; and an installation step of installing the top plate above the heat exchanger chamber, wherein the connection step is performed so that the upper end of the pair of heat exchangers is arranged more than the arrangement interval of the lower ends of the pair of heat exchangers. The pair of heat exchangers are connected so as to form a substantially V-shape when viewed from the longitudinal direction with a wide gap.

According to the method for manufacturing a heat exchange unit according to an aspect of the present invention, the pair of panel-shaped heat exchangers are connected by the connecting portion so as to form a substantially V shape when viewed from the longitudinal direction. A heat exchanger whose posture is not stable can be maintained in a stable posture, and a pair of heat exchangers can be easily assembled. In addition, the pair of blowers attached to the top plate can be installed in the heat exchange unit while the pair of heat exchangers are maintained in a stable posture.
Furthermore, since a pair of blowers is attached to the single top plate, the work of installing the blowers is easier than when blowers are individually attached to each of a plurality of top plates. Moreover, the installation interval of a pair of air blowers can be set correctly.

ADVANTAGE OF THE INVENTION According to this invention, the heat exchange unit and its manufacturing method which made it possible to arrange|position a pair of heat exchangers in a substantially V shape, and to install an air blower can be provided, without requiring much labor.

It is a perspective view which shows the external appearance of a chiller unit. FIG. 2 is a schematic plan view showing the interior of the heat exchanger chamber of FIG. 1; FIG. 2 is a schematic perspective view showing the air heat exchanger of FIG. 1; It is the side view which looked at the chiller unit shown in FIG. 1 from the one end side of the longitudinal direction. FIG. 2 is a view taken along line I-I shown in FIG. 1;

An embodiment according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a chiller unit (heat exchange unit) 1 of the present embodiment is an air-cooled heat pump chiller unit, and includes a machine room 2, a heat exchanger room 3 arranged above the machine room 2, and a heat exchanger. A pair of top plates 4 covering the upper part of the exchanger chamber 3, a pair of blowers 5 provided on each of the top plates 4, and a drain pan 6 provided between the machine room 2 and the heat exchanger chamber 3. have. The drain pan 6 is provided below the air heat exchanger 8 and collects condensed water generated in the air heat exchanger 8 .

The outer shell of the machine room 2 is constituted by a substantially rectangular parallelepiped housing 7 extending in one direction (longitudinal direction in FIG. 1). The housing 7 accommodates a compressor, a four-way valve, a water heat exchanger, an expansion valve, refrigerant pipes, water pipes, and a water pump (all not shown). The compressor, the four-way valve, the water heat exchanger, and the expansion valve are connected by refrigerant piping, and constitute a refrigeration cycle together with an air heat exchanger 8 provided in a heat exchanger chamber 3, which will be described later.

The four-way valve can switch the flow of the refrigerant flowing through the refrigerant pipe, and by switching the flow of the refrigerant, the chiller unit 1 can perform both cooling operation and heating operation.
The compressor comprises, for example, a motor driven by an inverter. The compressor adjusts the amount of refrigerant discharged to the refrigerant pipe by controlling the number of revolutions of the motor.

The water heat exchanger exchanges heat between the refrigerant flowing through the refrigerant pipe and the water flowing through the water pipe.
The water pipe includes a first pipe that supplies water to the water heat exchanger from outside the chiller unit 1 and a second pipe that discharges water from the water heat exchanger to the outside of the chiller unit 1 . The water discharged from the second pipe is provided as hot water or cold water to devices (not shown) at various destinations. The water that has undergone heat exchange in the equipment of various recipients is supplied from the equipment of various recipients to the water heat exchanger through the first pipe. In this way, the first pipe and the second pipe form part of a circulation flow path that connects the chiller unit 1 and equipment or the like of the supply destination.

The expansion valve is provided between the water heat exchanger and the air heat exchanger 8 provided in the heat exchanger chamber 3 .
The water pump circulates water in the water pipes and supplies water to the water heat exchanger.

The heat exchanger chamber 3 has an outer shell formed by a heat exchanger chamber housing 9 extending in one direction. As shown in the plan view of FIG. 2 , a plurality of (four in this embodiment) air heat exchangers 8 are arranged inside the heat exchanger chamber housing 9 . The heat exchanger chamber housing 9 has a substantially rectangular bottom plate 12 forming a lower surface and plate-like side walls 13 forming lateral sides, and the longitudinal sides are open. .

As shown in the perspective view of FIG. 3, the air heat exchanger 8 is formed in a panel shape, and is curved in a substantially L shape in plan view so that a curved portion 8b extending in the vertical direction is formed on the panel surface. are doing. The air heat exchanger 8 has a first flat portion 8a corresponding to the longitudinal portion of the L shape, a curved portion 8b corresponding to the corner portion of the L shape, and a second flat portion 8c corresponding to the lateral portion of the L shape. A header 8d for supplying refrigerant to each refrigerant pipe of the air heat exchanger 8 is arranged at a position on the center side of the heat exchanger chamber 3 at the end of the first flat portion 8a.

As shown in FIG. 2, the chiller unit 1 of this embodiment includes a pair of air heat exchangers 8 arranged at one end in the longitudinal direction of the chiller unit 1, and a pair of air heat exchangers 8 arranged at the other end in the longitudinal direction of the chiller unit 1. and a pair of air heat exchangers 8. The four air heat exchangers 8 are arranged side by side so that the second flat portions 8c of the short sides of the air heat exchangers 8 are along the side surfaces of the heat exchanger chamber 3 in the short side direction. The four air heat exchangers 8 are arranged such that the curved portions 8b, which are the corners of the L-shape, correspond to the four corners of the heat exchanger chamber 3, respectively. The four air heat exchangers 8 are arranged such that the first flat portion 8a, which is the longitudinal portion of the L-shape, extends along the longitudinal side of the heat exchanger chamber 3. As shown in FIG.

The air heat exchanger 8 is a fin-and-tube heat exchanger, and has a plurality of circular tubes in which a refrigerant flows and a plurality of fins provided on the outer peripheral surface of the tubes. In this embodiment, the panel surface of the air heat exchanger 8 is the surface on which the tubes are arranged in a plurality of rows in the vertical direction.

The fins are plate-shaped and arranged in a plurality of rows so that the plate surface is a vertical surface. A plurality of holes are formed in the plate surface of the fin. The diameter of this hole is formed slightly larger than the outer shape of the tube, and the tube is inserted so as to be fitted into this hole. Thus, fins are provided for the outer peripheral surface of the tube. The air heat exchanger 8 configured in this way exchanges heat with outside air introduced from the longitudinal side of the heat exchanger chamber housing 9 in an open state, thereby cooling or cooling the refrigerant flowing through the tubes. Heat up.

As shown in FIG. 1, the four blowers 5 are provided on the top plate 4 of the heat exchanger chamber housing 9 and are arranged side by side at equal intervals along the longitudinal direction of the heat exchanger chamber housing 9. there is The four blowers 5 are for blowing outside air to the air heat exchanger 8, introducing the outside air into the heat exchanger chamber 3, and introducing the outside air that has undergone heat exchange in the air heat exchanger 8 into the heat exchanger chamber. It is discharged to the outside of 3. A pair of blowers 5 are provided for a pair of air heat exchangers 8 arranged on one end side in the longitudinal direction shown in FIG. 2, and a pair of air heat exchangers arranged on the other end side in the longitudinal direction shown in FIG. A pair of blowers 5 are provided for the vessel 8 .

Next, the connecting portion 20 that connects the pair of air heat exchangers 8 arranged on one end side in the longitudinal direction of the chiller unit 1 will be described. The connecting portion 20 connecting the pair of air heat exchangers 8 arranged on the other end side in the longitudinal direction of the chiller unit 1 is the same as the connecting portion 20 on the one end side in the longitudinal direction of the chiller unit 1. , the description below is omitted.

As shown in FIG. 2 , the connecting portion 20 connects the first connecting member 21 connecting one longitudinal end side of the pair of air heat exchangers 8 and the other longitudinal end side of the pair of air heat exchangers 8 . and a second connecting member 22 to be connected.
Here, details of the connecting portion 20 will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is a side view of the chiller unit 1 shown in FIG. 1 as viewed from one end in the longitudinal direction. FIG. 5 is a view in the direction of arrow II shown in FIG. Note that FIG. 4 shows a state in which the side wall 13 is removed. Moreover, FIG.4 and FIG.5 shows the state which removed the top plate 4 and the fan 5. FIG.

As shown in FIG. 4 , the first connecting member 21 forms a substantially V shape when the pair of air heat exchangers 8 arranged with their longitudinal directions aligned with each other is viewed from one end side in the longitudinal direction of the chiller unit 1 . It is a member that connects so as to form a shape. As shown in FIG. 4 , the arrangement interval D2 between the upper ends of the pair of air heat exchangers 8 is wider than the arrangement interval D1 between the lower ends of the pair of air heat exchangers 8 . Here, the arrangement intervals D1 and D2 are from the outer peripheral surface of the first plane portion 8a of one air heat exchanger 8 in the short side direction of the chiller unit 1 to the outer periphery of the first plane portion 8a of the other air heat exchanger 8. Horizontal distance to the face.

The first connecting member 21 includes a first bracket 21a attached to one longitudinal end (end portion) of the pair of air heat exchangers 8 and formed to have a substantially V shape when viewed from the longitudinal direction; and a second bracket 21b that is horizontally arranged and connected to the upper end of the first bracket 21a.

The first bracket 21 a is connected to the second flat portion 8 c of the air heat exchanger 8 at one end in the short side direction of the chiller unit 1 and connected to the second flat portion 8 c of the air heat exchanger 8 at the other end in the short side direction. concatenated. The first bracket 21a and the pair of air heat exchangers 8 are attached to side plates (not shown) provided at the ends of the air heat exchangers 8 at a plurality of positions from the lower end to the upper end in the vertical direction by screws or the like. Connected by fasteners. Although the first bracket 21 a is connected to the air heat exchanger 8 here, the second bracket 21 b may be connected to a side plate provided at the end of the air heat exchanger 8 .

The second bracket 21b is connected to the first bracket 21a by being integrally formed with the first bracket 21a. The second bracket 21b may be formed as a separate member from the first bracket 21a instead of being integrally formed therewith, and may be connected by fastening tools such as fastening bolts and fastening nuts or by welding.

The second bracket 21b is formed with a plurality of through holes in the horizontal direction through which fastening bolts (not shown) for attaching the top plate 4 pass. A plurality of through holes are formed in the top plate 4 at positions facing the through holes of the second bracket 21b. The top plate 4 is installed above the second bracket 21b after connecting the pair of air heat exchangers 8 by the connecting portion 20 . The top plate 4 is attached to the second bracket 21b by inserting fastening bolts into the through holes of the top plate 4 and the through holes of the second bracket 21b and fastening them with fastening nuts.

As shown in FIG. 5 , the second connecting member 22 is substantially V-shaped when the pair of air heat exchangers 8 arranged with their longitudinal directions aligned with each other is viewed from the other longitudinal end side of the chiller unit 1 . It is a member that connects so as to form a letter shape. As shown in FIG. 5 , the arrangement interval D2 between the upper ends of the pair of air heat exchangers 8 is wider than the arrangement interval D1 between the lower ends of the pair of air heat exchangers 8 .

The second connecting member 22 includes a first bracket 22a attached to the other longitudinal end (end portion) of the pair of air heat exchangers 8 and formed to have a substantially V shape when viewed from the longitudinal direction. , and a second bracket 22b horizontally arranged to be connected to the upper end of the first bracket 22a.

The first bracket 22a is connected to the first flat portion 8a of the air heat exchanger 8 at the other end in the short side direction of the chiller unit 1, and connected to the first flat portion 8a of the air heat exchanger 8 at one end in the short side direction. concatenated. The first bracket 22a and the pair of air heat exchangers 8 are attached to side plates (not shown) provided at the ends of the air heat exchangers 8 at a plurality of locations from the lower end to the upper end in the vertical direction by screws or the like. Connected by fasteners. Here, the first bracket 22a is connected to the air heat exchanger 8, but the second bracket 22b may be connected to a side plate provided at the end of the air heat exchanger 8.

As shown in FIGS. 2 and 5, the first brackets 22a are formed at both ends of the chiller unit 1 in the short side direction so as to avoid the headers 8d so as to be substantially L-shaped when viewed from above. ing. With such a shape, the pair of air heat exchangers 8 can be connected while avoiding interference with the header 8d.

Unlike the first bracket 21a of the first connecting member 21, the first bracket 22a of the second connecting member 22 has a wall surface shape that blocks communication between the front and rear spaces because the portion sandwiched by the substantially V shape is not open. It has become. Since the first bracket 22a has a wall surface shape, the internal space of the heat exchanger chamber 3 is partitioned at the central portion of the chiller unit 1 in the longitudinal direction. As a result, the air blown by the pair of blowers 5 arranged at one end in the longitudinal direction of the chiller unit 1 is blown to the pair of air heat exchangers 8 arranged at the other end in the longitudinal direction of the chiller unit 1. is suppressed.

The second bracket 22b is connected to the first bracket 22a by forming it integrally with the first bracket 22a. The second bracket 22b may not be formed integrally with the first bracket 22a, but may be formed as a separate member and connected by fasteners such as fastening bolts and fastening nuts or by welding.

Through holes through which fastening bolts (not shown) for attaching the top plate 4 pass are formed in a plurality of horizontal locations in the second bracket 22b. A plurality of through holes are formed in the top plate 4 at positions facing the through holes of the second bracket 22b. The top plate 4 is installed above the second bracket 22b after connecting the pair of air heat exchangers 8 with the connecting portion 20 . The top plate 4 is attached to the second bracket 22b by inserting fastening bolts into the through holes of the top plate 4 and the through holes of the second bracket 22b and fastening them with fastening nuts.

As shown in FIG. 1, a pair of blowers 5 are attached to a top plate 4 that covers the heat exchanger chamber 3 from above.
As shown in FIGS. 4 and 5, the blower 5 includes a fan 5a, a fan motor 5b that drives the fan 5a to rotate around the rotation axis X, and a motor attachment portion 5c that attaches the fan motor 5b to the top plate 4. Prepare. The top plate 4 is made of sheet metal, and has a bell mouth 4a that covers the rotation axis X of the fan 5a.

Next, an assembling method (manufacturing method) of the chiller unit 1 of this embodiment will be described.
In the first step, an operator attaches a pair of blowers 5 to one top plate 4 . Specifically, the operator attaches the fan motor 5b to the motor attachment portion 5c, and attaches the fan 5a to the fan motor 5b.

In the second step, the operator connects both ends of the pair of air heat exchangers 8 in the longitudinal direction by the connecting portion 20 while the longitudinal directions of the pair of air heat exchangers 8 are aligned. Specifically, the operator connects one longitudinal end side of the pair of air heat exchangers 8 with the first connecting member 21, and connects the other longitudinal end side of the pair of air heat exchangers 8 with the second connecting member. 22. In the second step, as described above, the pair of air heat exchangers 8 are connected by the connecting portion 20 so as to form a substantially V shape when viewed from the longitudinal end of the chiller unit 1 .

In the third step, the worker installs the top plate 4 to which the pair of blowers 5 are attached above the pair of heat exchanger chambers 3 . Specifically, the operator places the top plate 4 above the second bracket 22b, inserts fastening bolts into the through holes of the top plate 4 and the second bracket 22b, and fastens them with fastening nuts. , the top plate 4 is installed above the heat exchanger chamber 3 .

The operation and effects of the chiller unit 1 of this embodiment described above will be described.
According to the chiller unit 1 of the present embodiment, the pair of panel-shaped air heat exchangers 8 are connected by the connecting portion 20 so as to form a substantially V-shape when viewed from the longitudinal direction, so that the posture of the single unit is stable. A pair of air heat exchangers 8 can be easily assembled by maintaining the air heat exchanger 8 in a stable posture. Further, the pair of blowers 5 attached to the top plate 4 can be installed in the chiller unit 1 while maintaining the pair of air heat exchangers 8 in a stable posture.

Furthermore, since the pair of blowers 5 are attached to the single top plate 4, the installation work of the blowers 5 becomes easier than when the blowers 5 are individually attached to each of the plurality of top plates 4. . Further, since the pair of fans 5 are positioned with respect to the top plate 4, the installation interval between the pair of fans 5 can be set accurately.

In the chiller unit 1 of the present embodiment, the connecting portion 20 is attached to the longitudinal ends of the pair of air heat exchangers 8 and is formed to have a substantially V shape when viewed from the longitudinal direction. It comprises brackets 21a and 22a, and second brackets 21b and 22b which are horizontally arranged and connected to upper ends of the first brackets 21a and 22a.

By attaching the longitudinal ends of the pair of air heat exchangers 8 to the first brackets 21 a and 22 a formed to have a substantially V-shape, the pair of air heat exchangers 8 are attached to the connecting portion 20 . securely fixed. Further, since the second brackets 21b, 22b arranged in the horizontal direction are connected to the upper ends of the first brackets 21a, 22a, the arrangement interval of the upper ends of the pair of air heat exchangers 8 is surely fixed. The attitude of the air heat exchanger 8 can be further stabilized.

In the chiller unit 1 of this embodiment, since the top plate 4 is attached to the connecting portion 20, the pair of air heat exchangers 8 and the pair of blowers 5 are integrated together with the top plate 4. Assembleability is further improved.

In the chiller unit 1 of this embodiment, the top plate 4 may be made of sheet metal.
By making the top plate 4 made of sheet metal, the strength of the top plate 4 is sufficiently ensured, and the pair of blowers 5 can be reliably supported on the top plate 4 .

In the chiller unit 1 of this embodiment, each of the pair of blowers 5 includes a fan 5a and a fan motor 5b that drives the fan 5a. A pair of bell mouths 4a are formed on the top plate 4 to cover the rotation axis X of the fan 5a.
By covering the rotation axis X of the fan 5a with the bell mouth 4a, the air blowing characteristics of the blower 5 are improved.

[Other embodiments]
In the above description, the connecting portion 20 includes the pair of air heat exchangers 8, the first connecting member 21 connecting one end side in the longitudinal direction of the pair of air heat exchangers 8, and the pair of air heat exchangers 8. Although both of the second connecting members 22 that connect the other end sides in the longitudinal direction are provided, another aspect may be adopted. For example, the connecting portion 20 may connect the pair of air heat exchangers 8 with either the first connecting member 21 or the second connecting member 22 .

1 Chiller unit (heat exchange unit)
2 Machine room 3 Heat exchanger room 4 Top plate 5 Blower 5a Fan 5b Fan motor 5c Motor mounting part 6 Drain pan 7 Housing 8 Air heat exchanger 8a First flat part 8b Curved part 8c Second flat part 8d Header 9 Heat exchange Chamber housing 12 Bottom plate 13 Side wall 20 Connecting part 21 First connecting member 21a First bracket 21b Second bracket 22 Second connecting member 22a First bracket 22b Second bracket X Rotation axis

Claims (5)

a pair of panel-shaped heat exchangers;
a pair of blowers for blowing outside air to the pair of heat exchangers;
a heat exchanger chamber housing the pair of heat exchangers;
a top plate covering the upper part of the heat exchanger chamber and having the pair of blowers attached thereto;
a connecting portion that connects the longitudinal ends of the pair of heat exchangers with the longitudinal directions aligned,
The heat exchanger chamber has an outer shell formed by a heat exchanger chamber housing,
A lateral side surface of the heat exchanger chamber housing is constituted by a plate-shaped side wall,
The connecting portion is attached to the longitudinal end portion of the pair of heat exchangers arranged inside the heat exchanger chamber housing, and is arranged closer to the pair of heat exchangers than the arrangement interval between the lower ends of the pair of heat exchangers. The pair of heat exchangers are connected so that the arrangement interval of the upper ends of the heat exchangers is wide and the pair of heat exchangers is substantially V-shaped when viewed from the longitudinal direction,
The connecting portion includes a first connecting member that connects the pair of heat exchangers at one end in the longitudinal direction, and a second connecting member that connects the pair of heat exchangers at the other end in the longitudinal direction,
The first connecting member is
a first V-shaped bracket attached to one end of the pair of heat exchangers in the longitudinal direction and formed to have a substantially V-shape when viewed from the longitudinal direction;
a first horizontal bracket connected to the upper end of the first V-shaped bracket and arranged in a horizontal direction;
The second connecting member is
a second V-shaped bracket attached to the other end in the longitudinal direction of the pair of heat exchangers and formed to have a substantially V-shape when viewed from the longitudinal direction;
a second horizontal bracket connected to the upper end of the second V-shaped bracket and arranged in a horizontal direction;
A heat exchange unit in which the first V-shaped bracket has a substantially V-shaped portion that is open, and the second V-shaped bracket has a wall shape that is not open at a substantially V-shaped portion. The heat exchange unit according to claim 1, wherein the top plate is attached to the first horizontal bracket and the second horizontal bracket . 3. The heat exchange unit according to claim 1, wherein the top plate is made of sheet metal. each of the pair of blowers includes a fan and a fan motor that drives the fan;
4. The heat exchange unit according to claim 1 , wherein the top plate is formed with a pair of bell mouths covering the rotation axis of the fan. A pair of panel-shaped heat exchangers, a pair of blowers for blowing outside air to the pair of heat exchangers, a heat exchanger chamber accommodating the pair of heat exchangers, and covering the upper part of the heat exchanger chamber A method for manufacturing a heat exchange unit comprising a top plate and a connecting portion for connecting the pair of heat exchangers,
The heat exchanger chamber has an outer shell formed by a heat exchanger chamber housing,
A lateral side surface of the heat exchanger chamber housing is constituted by a plate-shaped side wall,
The connecting portion includes a first connecting member that connects the pair of heat exchangers at one end in the longitudinal direction, and a second connecting member that connects the pair of heat exchangers at the other end in the longitudinal direction,
The first connecting member is
a first V-shaped bracket attached to one end of the pair of heat exchangers in the longitudinal direction and formed to have a substantially V-shape when viewed from the longitudinal direction;
a first horizontal bracket connected to the upper end of the first V-shaped bracket and arranged in a horizontal direction;
The second connecting member is
a second V-shaped bracket attached to the other end in the longitudinal direction of the pair of heat exchangers and formed to have a substantially V-shape when viewed from the longitudinal direction;
a second horizontal bracket connected to the upper end of the second V-shaped bracket and arranged in a horizontal direction;
The first V-shaped bracket has an open portion sandwiched between the substantially V-shaped brackets, and the second V-shaped bracket has a wall surface shape in which the portion sandwiched between the substantially V-shaped brackets is not open,
a mounting step of mounting the pair of blowers on the top plate;
a connecting step of connecting the pair of heat exchangers arranged inside the heat exchanger chamber housing at one end in the longitudinal direction by the connecting portion while the longitudinal directions of the pair of heat exchangers are aligned;
An installation step of installing the top plate to which the pair of blowers are attached above the heat exchanger chamber,
In the connecting step, the pair of heat exchangers are arranged so that the arrangement interval of the upper ends of the pair of heat exchangers is wider than the arrangement interval of the lower ends of the pair of heat exchangers so that the pair of heat exchangers is substantially V-shaped when viewed from the longitudinal direction. A method for manufacturing a heat exchange unit that connects exchangers.

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