WO2024014021A1 - Heat exchanger unit, positioning method, and heat exchanger unit assembling method - Google Patents

Abstract

This heat exchanger unit comprises a heat exchanger, a pedestal on which the heat exchanger is placed, a frame for supporting the heat exchanger from the sides thereof, and a fixing part attached to the heat exchanger, wherein a first end of the frame is fixed to the pedestal and a second end of the frame is fixed to the fixing part.

Description

Heat exchanger unit, positioning method, and heat exchanger unit assembly method

The present disclosure relates to a heat exchanger unit, a positioning method, and a method of assembling a heat exchanger unit.
This application claims priority based on Japanese Patent Application No. 2022-112328 filed in Japan on July 13, 2022, the contents of which are incorporated herein.

Patent Document 1 discloses a heat exchanger unit in which a pair of heat exchangers are arranged in a V-shape by arranging each heat exchanger in an inclined position with respect to the vertical direction. In the heat exchanger unit of Patent Document 1, the V-shaped arrangement of the pair of heat exchangers is maintained by the connecting portion that connects the pair of heat exchangers.

Japanese Patent Application Publication No. 2019-124374

However, the heat exchanger unit of Patent Document 1 in which a pair of heat exchangers are connected at a connecting portion may be difficult to assemble.

The present disclosure has been made in order to solve the above problems, and aims to provide a heat exchanger unit, a positioning method, and a heat exchanger unit assembly method that can improve assembly efficiency. shall be.

In order to solve the above problems, a heat exchanger unit according to the present disclosure includes a heat exchanger, a pedestal on which the heat exchanger is placed, a frame that supports the heat exchanger from the side, and a heat exchanger that supports the heat exchanger from the side. a fixing part attached to the exchanger, a first end of the frame being fixed to the pedestal, and a second end of the frame being fixed to the fixing part.

The positioning method according to the present disclosure includes suspending a heat exchanger, placing the heat exchanger on a pedestal, fixing a first end of a frame to the pedestal, and fixing a second end of the frame to the heat exchanger. By fixing to a fixing part attached to the frame, the heat exchanger is supported from the side by the frame and the heat exchanger is positioned.

In the method for assembling a heat exchanger unit according to the present disclosure, after performing the positioning method, the suspended state of the heat exchanger is released, and a large frame larger than the frame is attached to the pedestal and the heat exchanger. By fixing the heat exchanger to the large frame, the heat exchanger is supported by the large frame.

According to the present disclosure, it is possible to improve the assemblability of the heat exchanger unit.

FIG. 1 is a perspective view showing the appearance of a heat exchanger unit according to an embodiment of the present disclosure. FIG. 2 is a front view of the heat exchanger unit of FIG. 1 viewed from the longitudinal direction of the heat exchanger. FIG. 2 is a side view of the heat exchanger unit of FIG. 1 viewed from the lateral direction of the heat exchanger. FIG. 2 is a perspective view showing a heat exchanger constituting the heat exchanger unit of FIG. 1. FIG. 5 is a diagram showing an enlarged view of region V in FIG. 4. FIG. 3 is a flowchart illustrating a positioning method according to an embodiment of the present disclosure. 7 is a front view showing a process of attaching a frame in the positioning method shown in FIG. 6. FIG. 1 is a flowchart illustrating a method for assembling a heat exchanger unit according to an embodiment of the present disclosure.

<Embodiment>
(Configuration of heat exchanger unit)
As shown in FIGS. 1 to 3, the heat exchanger unit 1 of this embodiment includes a pair of heat exchangers 2, a fixing part 3, a pedestal 4, a frame 5, a large frame 6, and a top plate 7. and a blower 8.
1 to 3, the Z axis indicates the vertical direction, and corresponds to the vertical direction of the heat exchanger unit 1. The direction in which the Z-axis arrow points indicates upward or upper side, and the direction opposite to the Z-axis arrow indicates downward or lower side. Further, the X-axis perpendicular to the Z-axis indicates a first horizontal direction, and corresponds to the longitudinal direction of the heat exchanger unit 1. A Y-axis perpendicular to the Z-axis and the X-axis indicates a second horizontal direction, and corresponds to the lateral direction of the heat exchanger unit 1.

(Heat exchanger)
As shown in FIG. 4, each heat exchanger 2 is formed into a panel shape. Specifically, the heat exchanger 2 is formed into a rectangular plate shape. The heat exchanger 2 has refrigerant piping through which refrigerant flows. In the heat exchanger 2 shown in FIG. 4, the refrigerant piping is arranged in one direction perpendicular to the thickness direction T of the heat exchanger 2 (the left-right direction in FIG. 4; hereinafter referred to as the first orthogonal direction CS1 of the heat exchanger 2). ), and is formed so as to be folded back at both ends of the heat exchanger 2 in the first orthogonal direction CS1.
By passing air through the heat exchanger 2, heat exchange is performed between the air and the refrigerant flowing through the refrigerant piping. The heat exchanger 2 is configured so that air can pass through it in the thickness direction T. In the following description, the surface of the heat exchanger 2 facing the thickness direction T will be referred to as the ventilation surface 21.

The heat exchanger 2 has two heat exchanger elements 22 and 23 (a first heat exchanger element 22 and a second heat exchanger element 23). The two heat exchanger elements 22 and 23 are each formed into a rectangular plate shape. The two heat exchanger elements 22 and 23 are arranged in a direction perpendicular to the thickness direction T of the heat exchanger 2 and the first orthogonal direction CS1 (vertical direction in FIG. 4; hereinafter, the second orthogonal direction CS2 of the heat exchanger 2). ) are placed next to each other. These two heat exchanger elements 22, 23 are connected by a connecting part 32 of the fixing part 3, which will be described later.

(Fixed part)
The fixing part 3 is attached to the heat exchanger 2. Specifically, the fixing part 3 is mainly arranged on one ventilation surface 21A of the heat exchanger 2 (hereinafter referred to as the first ventilation surface 21A). Further, the fixing part 3 is located at the center of the first ventilation surface 21A. In this embodiment, the center of the first ventilation surface 21A is an intermediate region of the first ventilation surface 21A in the second orthogonal direction CS2. The center of gravity of the heat exchanger 2 is included in the middle region of the first ventilation surface 21A in the second orthogonal direction CS2. The fixing part 3 has an extending part 31 extending from one end of the heat exchanger 2 to the other end in the first orthogonal direction CS1 in the intermediate region of the first ventilation surface 21A.

As shown in FIGS. 4 and 5, the fixing part 3 has a connecting part 32 that connects the two heat exchanger elements 22 and 23. In this embodiment, the connecting portions 32 are attached to both ends of the extending portion 31 in the longitudinal direction. Furthermore, the two heat exchanger elements 22, 23 are connected by attaching the connecting portion 32 to both of the two heat exchanger elements 22, 23. The connecting portion 32 also serves to attach the extending portion 31 to the heat exchanger 2.

(pedestal)
As shown in FIGS. 1 and 2, a pair of heat exchangers 2 are placed on the pedestal 4. As shown in FIGS. The pedestal 4 is formed into a plate shape whose thickness direction is mainly in the vertical direction. The pedestal 4 is formed in a rectangular shape, with its long side extending in the longitudinal direction of the heat exchanger unit 1 and its short side extending in the lateral direction of the heat exchanger unit 1, when viewed from the vertical direction.

The pair of heat exchangers 2 are placed on the pedestal 4 in an inclined position with respect to the vertical direction. Specifically, the pair of heat exchangers 2 are placed on the intermediate portion of the pedestal 4 in the lateral direction of the heat exchanger unit 1 . The pair of heat exchangers 2 are arranged so as to extend away from each other in the lateral direction as they go upward from the intermediate portion of the pedestal 4 . That is, each heat exchanger 2 extends obliquely upward from the base 4. Thereby, the pair of heat exchangers 2 are arranged in a V-shape when viewed from the lateral direction of the heat exchanger unit 1.

As shown in FIGS. 1 to 3, in the heat exchanger 2 placed on the pedestal 4, the extending portion 31 of the fixing portion 3 attached to the heat exchanger 2 extends in the longitudinal direction of the heat exchanger unit 1. It is arranged like this. The first ventilation surface 21A of each heat exchanger 2, on which the extension part 31 of the fixing part 3 is arranged, faces downward. On the other hand, the other ventilation surface 21B (hereinafter referred to as second ventilation surface 21B) of each heat exchanger 2 faces upward. Moreover, each heat exchanger 2 is located so as not to protrude outside the base 4 in the lateral direction of the heat exchanger unit 1.

(flame)
The frame 5 supports each heat exchanger 2 from the sides. In this embodiment, "lateral" corresponds to the lateral direction of the heat exchanger unit 1. Specifically, the frame 5 is formed into a rod shape that extends linearly. A first end 51 in the longitudinal direction of the frame 5 is fixed to the base 4. The second end 52 in the longitudinal direction of the frame 5 is fixed to the fixing part 3 (the middle part of the heat exchanger 2 in the vertical direction). The frame 5 may be fixed to the pedestal 4 and the fixing part 3 using fastening parts such as bolts and nuts, but the fixation is not limited thereto.

In a state where the frame 5 is fixed to the pedestal 4 and the fixed part 3, the frame 5 extends upward from the pedestal 4 toward each heat exchanger 2. Thereby, the frame 5 supports the heat exchanger 2, which is inclined with respect to the vertical direction, from the sides and from below (that is, from diagonally below). Further, as described above, since the fixing part 3 is arranged at the center of the first ventilation surface 21A of the heat exchanger 2 that includes the center of gravity of the heat exchanger 2, the frame 5 supports the vicinity of the center of gravity of the heat exchanger 2. .
In this embodiment, two frames 5 support the same heat exchanger 2. The two frames 5 are arranged at intervals in the longitudinal direction of the heat exchanger unit 1.

(Large frame)
The large frame 6 supports each heat exchanger 2 from the side similarly to the frame 5 described above. The large frame 6 is formed into a rod shape that extends linearly. The size of the large frame 6 is larger than the size of the frame 5 described above. Specifically, the large frame 6 is longer and thicker than the frame 5. Therefore, the strength of the large frame 6 is higher than that of the frame 5.
A first end 61 in the longitudinal direction of the large frame 6 is fixed to the pedestal 4. A second end 62 in the longitudinal direction of the large frame 6 is fixed to the upper end of the heat exchanger 2 via a top plate 7, which will be described later. The large frame 6 may be fixed to the pedestal 4 and the top plate 7 by using fastening parts such as bolts and nuts, but is not limited thereto.

In a state where the large frame 6 is fixed to the pedestal 4 and the upper end of each heat exchanger 2, the large frame 6 extends upward from the pedestal 4 toward the upper end of each heat exchanger 2. Thereby, the large frame 6 supports the heat exchanger 2, which is inclined with respect to the vertical direction, from the sides and from below (that is, from diagonally below).
In this embodiment, two large frames 6 support the same heat exchanger 2. The two large frames 6 are arranged at intervals in the longitudinal direction of the heat exchanger unit 1. Further, the two large frames 6 are located outside the two frames 5 in the longitudinal direction of the heat exchanger unit 1.

(Top board)
The top plate 7 is formed into a plate shape whose thickness direction is in the vertical direction. The top plate 7 is fixed to the upper end portions of the pair of heat exchangers 2 so as to cover the upper sides of the pair of heat exchangers 2.

(Blower)
The blower 8 is attached to the top plate 7. The blower 8 attached to the top plate 7 is located above the second ventilation surfaces 21B of the pair of heat exchangers 2 facing upward, with an interval therebetween. The blower 8 blows air from the bottom of the top plate 7 to the top, or blows air from the top of the top plate 7 to the bottom. This allows air to pass through each heat exchanger 2. For example, when the blower 8 blows air from the lower side of the top plate 7 to the upper side, the first ventilation surface 21A of each heat exchanger 2 becomes an intake surface that sucks air into the inside of the heat exchanger 2, and the second ventilation surface The surface 21B serves as an exhaust surface for discharging air to the outside of the heat exchanger 2.
In this embodiment, two blowers 8 are arranged in the longitudinal direction of the heat exchanger unit 1 . Note that the number of blowers 8 may be one, for example, or three or more.

(Positioning method)
Next, the positioning method according to this embodiment will be explained mainly with reference to FIG. The positioning method is a method of positioning the heat exchanger 2 with respect to the pedestal 4.

As shown in FIG. 6, in the positioning method, first, the heat exchanger 2 is suspended using a crane or the like (hanging step S11). At this time, the heat exchanger 2 is preferably suspended so that its posture can be adjusted. In this embodiment, a pair of heat exchangers 2 are suspended.
After suspending the heat exchanger 2, the heat exchanger 2 is placed on the pedestal 4 (placing step S12). In the mounting step S12, the posture of the heat exchanger 2 is adjusted and then the heat exchanger 2 is mounted on the pedestal 4. Specifically, the heat exchanger 2 is placed on the pedestal 4 with the heat exchanger 2 tilted with respect to the vertical direction so that the first ventilation surface 21A of the heat exchanger 2 faces downward. Further, the pair of heat exchangers 2 are placed on the pedestal 4 so that the pair of heat exchangers 2 have a V shape when viewed from the lateral direction of the heat exchanger unit 1. Note that even after the heat exchanger 2 is placed on the pedestal 4, the suspended state of the heat exchanger 2 is maintained.

After placing the heat exchanger 2 on the pedestal 4, the frame 5 is attached to the pedestal 4 and the fixing part 3 (frame attachment step S13). In the frame attachment step S13, the first end 51 of the frame 5 is fixed to the pedestal 4, as shown in FIG. Further, the second end 52 of the frame 5 is fixed to the fixing part 3. Thereby, the heat exchanger 2 is supported from the side by the frame 5 and the heat exchanger 2 is positioned. Specifically, the heat exchanger 2 that is inclined with respect to the vertical direction is supported by the frame 5 from the sides and from below (that is, from diagonally below). Since the heat exchanger 2 is supported by the frame 5, the heat exchanger 2 is positioned with respect to the pedestal 4. Note that even after the frame attachment step S13, the suspended state of the heat exchanger 2 is maintained.
With the above steps, the positioning method according to this embodiment is completed.

(Assembling method of heat exchanger unit 1)
Next, a method for assembling the heat exchanger unit 1 according to the present embodiment will be described mainly with reference to FIG.
As shown in FIG. 8, in the method for assembling the heat exchanger unit 1, after the above-described positioning method is performed, the suspended state of the heat exchanger 2 is released (suspension release step S21). Next, a large frame 6, which is larger in size than the frame 5, is attached to the pedestal 4 and the heat exchanger 2 (large frame attachment step S22). In the large frame attaching step S22, the large frame 6 is fixed to the pedestal 4 and the heat exchanger 2, so that the large frame 6 supports the heat exchanger 2. Specifically, in the large frame attaching step S22, the first end 61 of the large frame 6 is fixed to the pedestal 4. Further, the second end 62 of the large frame 6 is fixed to the upper end portion of the heat exchanger 2.

In addition, in the method for assembling the heat exchanger unit 1 of the present embodiment, a step of attaching the top plate 7 to the upper end portions of the pair of heat exchangers 2 is performed between the above-described suspension release step S21 and the large frame attaching step S22. (Top plate installation step). Thereby, the upper sides of the pair of heat exchangers 2 are covered by the top plate 7. Then, in the large frame attaching step S22, the second end 62 of the large frame 6 is fixed to the top plate 7. Thereby, the second end 62 of the large frame 6 is fixed to the upper end portion of the heat exchanger 2 via the top plate 7.

Further, in the method for assembling the heat exchanger unit 1 of this embodiment, a step of attaching the blower 8 to the top plate 7 (blower attaching step) is also carried out. The blower attachment step may be performed before or after the top plate attachment step.
With the above steps, the method for assembling the heat exchanger unit 1 according to the present embodiment is completed.

In the heat exchanger unit 1 of this embodiment, with the heat exchanger 2 placed on the pedestal 4, the first end 51 of the frame 5 is fixed to the pedestal 4, and the second end 52 of the frame 5 is fixed to the pedestal 4. It is fixed to a fixing part 3 attached to the exchanger 2. Therefore, by fixing the frame 5 to the pedestal 4 and the fixing part 3 after placing the heat exchanger 2 on the pedestal 4, the heat exchanger 2 can be supported by the frame 5. Furthermore, by attaching the frame 5 to the pedestal 4 and the heat exchanger 2 after the heat exchanger 2 is placed on the pedestal 4, the frame 5 can prevent the heat exchanger 2 from being placed on the pedestal 4. It can be prevented. Thereby, the ease of assembling the heat exchanger unit 1 can be improved.

Moreover, in the heat exchanger unit 1 of this embodiment, the heat exchanger 2 is mounted on the pedestal 4 in an attitude inclined with respect to the vertical direction. Furthermore, the fixing part 3 is arranged on the first ventilation surface 21A of the heat exchanger 2, which extends diagonally upward from the base 4 and faces downward. Thereby, the heat exchanger 2 mounted on the pedestal 4 in an attitude inclined with respect to the vertical direction can be supported by the frame 5 fixed to the pedestal 4 and the fixing part 3.
As described above, by attaching the frame 5 to the pedestal 4 and the heat exchanger 2 after placing the heat exchanger 2 on the pedestal 4, it is possible to place the heat exchanger 2 on the pedestal 4 in an inclined position. In addition, the second end 52 of the frame 5 can be prevented from hitting the first ventilation surface 21A of the heat exchanger 2 facing downward. This point will be explained below.

For example, if you try to place the heat exchanger 2 on the pedestal 4 in an inclined position with the frame 5 fixed to the pedestal 4, that is, with the frame 5 extending upward from the pedestal 4, the frame 5 There is a possibility that the second end 52 hits the first ventilation surface 21A of the heat exchanger 2 facing downward. That is, the frame 5 may obstruct the placement of the heat exchanger 2 on the pedestal 4. On the other hand, when attaching the frame 5 to the pedestal 4 and the heat exchanger 2 after placing the heat exchanger 2 on the pedestal 4, when placing the heat exchanger 2 on the pedestal 4 in an inclined position, The second end 52 of the frame 5 can be prevented from hitting the first ventilation surface 21A of the heat exchanger 2 facing downward. Therefore, the ease of assembling the heat exchanger unit 1 can be improved.

Furthermore, in the heat exchanger unit 1 of this embodiment, the fixing part 3 is located at the center of the first ventilation surface 21A of the heat exchanger 2. Thereby, the vicinity of the center of gravity of the heat exchanger 2 can be supported by the frame 5. Therefore, the stability of the heat exchanger 2 supported by the frame 5 can be further improved.

Furthermore, in the heat exchanger unit 1 of this embodiment, the heat exchanger 2 is supported by a large frame 6 that is larger in size than the frame 5. Thereby, the strength of the entire heat exchanger unit 1 can be increased.
Note that the large frame 6 preferably has a strength sufficient to support not only the heat exchanger 2 but also the top plate 7 and the blower 8, for example. Moreover, it is preferable that the large frame 6 has a strength sufficient to withstand, for example, even if an external force is applied to the heat exchanger unit 1 after manufacture. On the other hand, the frame 5 only needs to have enough strength to support the heat exchanger 2 at least during the manufacturing process of the heat exchanger 2.

Furthermore, in the heat exchanger unit 1 of this embodiment, the heat exchanger 2 includes a first heat exchanger element 22 and a second heat exchanger element 23. Further, the first heat exchanger element 22 and the second heat exchanger element 23 are connected by a connecting part 32 of the fixing part 3. Therefore, the strength of the heat exchanger 2 can be improved even if the heat exchanger 2 is increased in size, compared to the case where the heat exchanger 2 is composed of one element. Furthermore, the degree of freedom in designing the heat exchanger 2 can be improved compared to the case where the heat exchanger 2 is configured by one element.

In the positioning method of this embodiment, after the heat exchanger 2 is placed on the pedestal 4, the frame 5 is fixed to the fixing part 3 attached to the pedestal 4 and the heat exchanger 2. Therefore, it is possible to prevent the frame 5 from interfering with the mounting of the heat exchanger 2 on the pedestal 4. Thereby, the ease of assembling the heat exchanger unit 1 can be improved.

In the method for assembling the heat exchanger unit 1 of this embodiment, the heat exchanger 2 is supported by the frame 5 having a small size, and then the heat exchanger 2 is supported by the large frame 6 having a large size. Thereby, in the assembled heat exchanger unit 1, the strength of the entire heat exchanger unit 1 can be increased compared to a case where the heat exchanger 2 is supported only by the frame 5.
In addition, since the strength of the heat exchanger unit 1 can be ensured by the large frame 6, the strength of the frame 5 used in the positioning method is low (for example, the strength is high enough to support the heat exchanger 2, and the heat exchanger unit 1 It is possible to suppress the strength to such a low level that it cannot withstand external forces acting on it. Thereby, the size and weight of the frame 5 handled in the positioning method can be reduced, so that the heat exchanger 2 can be easily positioned using the frame 5.

The embodiments of the present disclosure have been described above in detail with reference to the drawings, but the specific configuration is not limited to these embodiments, and design changes etc. within the scope of the gist of the present disclosure are also included. .

In the present invention, the second end 62 of the large frame 6 may be directly fixed to the upper end of the heat exchanger 2, for example.

In the present invention, the number of heat exchangers 2 included in the heat exchanger unit 1 is not limited to two, and may be one or three or more.

<Additional notes>
The heat exchanger unit 1, the positioning method, and the assembling method of the heat exchanger unit 1 described in the above-described embodiments can be understood, for example, as follows.

(1) The heat exchanger unit 1 according to the first aspect includes a heat exchanger 2, a pedestal 4 on which the heat exchanger 2 is placed, and a frame 5 that supports the heat exchanger 2 from the side. , a fixing part 3 attached to the heat exchanger 2, a first end 51 of the frame 5 being fixed to the pedestal 4, and a second end 52 of the frame 5 being attached to the fixing part 3. This is a fixed heat exchanger unit 1.

In the above configuration, after the heat exchanger 2 is placed on the pedestal 4, the first end 51 of the frame 5 is fixed to the pedestal 4, and the second end 52 of the frame 5 is fixed to the fixing part attached to the heat exchanger 2. 3, the heat exchanger 2 can be supported by the frame 5. To prevent the frame 5 from obstructing the placement of the heat exchanger 2 on the pedestal 4 by attaching the frame 5 to the pedestal 4 and the heat exchanger 2 after the heat exchanger 2 is placed on the pedestal 4. I can do it. Thereby, the ease of assembling the heat exchanger unit 1 can be improved.

(2) In the heat exchanger unit 1 according to the second aspect, the heat exchanger 2 is placed on the pedestal 4 in an attitude inclined with respect to the vertical direction, and the fixing part 3 is separated from the pedestal 4. The heat exchanger unit 1 according to (1) is disposed on the ventilation surface 21A of the heat exchanger 2 that extends obliquely upward and faces downward.

In the above configuration, the heat exchanger 2 placed on the pedestal 4 in an attitude inclined with respect to the vertical direction can be supported by the frame 5 fixed to the pedestal 4 and the fixing part 3. By attaching the frame 5 to the pedestal 4 and the heat exchanger 2 after placing the heat exchanger 2 on the pedestal 4, when the heat exchanger 2 is placed on the pedestal 4 in an inclined position, the frame 5 can be This can prevent the second end 52 from hitting the downwardly facing ventilation surface 21A of the heat exchanger 2. Therefore, the ease of assembling the heat exchanger unit 1 can be improved.

(3) The heat exchanger unit 1 according to the third aspect is the heat exchanger unit 1 described in (2), which includes a pair of the heat exchangers 2.

In the above configuration, the pair of heat exchangers 2 can be arranged in a V-shape by placing each of the pair of heat exchangers 2 on the pedestal 4 in an attitude inclined with respect to the vertical direction.

(4) The heat exchanger unit 1 according to the fourth aspect is the heat exchanger unit 1 according to (2) or (3), in which the fixing portion 3 is located at the center of the ventilation surface 21A.

In the above configuration, the frame 5 can support the vicinity of the center of gravity of the heat exchanger 2. Thereby, the stability of the heat exchanger 2 supported by the frame 5 can be further improved.

(5) The heat exchanger unit 1 according to the fifth aspect includes any one of (1) to (4), which is larger in size than the frame 5 and includes a large frame 6 that supports the heat exchanger 2 from the side. The heat exchanger unit 1 according to item 1.

In the above configuration, since the heat exchanger 2 is supported by the large frame 6 that is larger than the frame 5, the strength of the entire heat exchanger unit 1 can be increased.

(6) In the heat exchanger unit 1 according to the sixth aspect, the heat exchanger 2 includes a first heat exchanger element 22 and a second heat exchanger element 23, and the fixing part 3 The heat exchanger unit 1 according to any one of (1) to (5) includes a connecting portion 32 that connects the first heat exchanger element 22 and the second heat exchanger element 23.

With the above configuration, the strength of the heat exchanger 2 can be improved even if the heat exchanger 2 is increased in size, compared to a case where the heat exchanger 2 is composed of one element. Furthermore, the degree of freedom in designing the heat exchanger 2 can be improved compared to the case where the heat exchanger 2 is configured by one element.

(7) The positioning method according to the seventh aspect includes hanging the heat exchanger 2, placing the heat exchanger 2 on the pedestal 4, fixing the first end 51 of the frame 5 to the pedestal 4, and By fixing the second end 52 of the frame 5 to the fixing part 3 attached to the heat exchanger 2, the heat exchanger 2 is supported from the side by the frame 5 and the heat exchanger 2 is positioned. This is a positioning method.

In the above positioning method, after the heat exchanger 2 is placed on the pedestal 4, the frame 5 is fixed to the fixing part 3 attached to the pedestal 4 and the heat exchanger 2. Therefore, it is possible to prevent the frame 5 from interfering with the mounting of the heat exchanger 2 on the pedestal 4. Thereby, the ease of assembling the heat exchanger unit 1 can be improved.

(8) The method for assembling the heat exchanger unit 1 according to the eighth aspect is such that after implementing the positioning method described in (7), the suspended state of the heat exchanger 2 is released, and the heat exchanger unit 1 is lowered from the frame 5. This is a method of assembling the heat exchanger unit 1 in which the heat exchanger 2 is supported by the large frame 6 by fixing the large frame 6 to the pedestal 4 and the heat exchanger 2.

In the above assembly method, since the heat exchanger 2 is supported by the large frame 6, the strength of the entire heat exchanger unit 1 can be increased compared to the case where the heat exchanger 2 is supported only by the frame 5. can.
In addition, since the strength of the heat exchanger unit 1 can be ensured by the large frame 6, the strength of the frame 5 used in the positioning method is low (for example, the strength is high enough to support the heat exchanger 2, and the heat exchanger unit 1 It is possible to suppress the strength to such a low level that it cannot withstand external forces acting on it. Thereby, the size and weight of the frame 5 handled in the positioning method can be reduced, so that the heat exchanger 2 can be easily positioned using the frame 5.

1 Heat exchanger unit 2 Heat exchanger 3 Fixed part 4 Pedestal 5 Frame 6 Large frame 21A First ventilation surface (ventilation surface)
22 First heat exchanger element 23 Second heat exchanger element 32 Connection portion 51 First end 52 of frame 5 Second end of frame 5

Claims (8)

1. a heat exchanger;
   a pedestal on which the heat exchanger is placed;
   a frame that laterally supports the heat exchanger;
   a fixed part attached to the heat exchanger;
   Equipped with
   a first end of the frame is fixed to the pedestal,
   A heat exchanger unit in which a second end of the frame is fixed to the fixing part.
2. The heat exchanger is placed on the pedestal in an attitude inclined with respect to the vertical direction,
   The heat exchanger unit according to claim 1, wherein the fixing portion extends obliquely upward from the pedestal and is disposed on a ventilation surface of the heat exchanger facing downward.
3. The heat exchanger unit according to claim 2, comprising a pair of the heat exchangers.
4. The heat exchanger unit according to claim 2 or 3, wherein the fixing part is located at the center of the ventilation surface.
5. The heat exchanger unit according to any one of claims 1 to 3, comprising a large frame that is larger in size than the frame and supports the heat exchanger from the sides.
6. The heat exchanger has a first heat exchanger element and a second heat exchanger element,
   The heat exchanger unit according to any one of claims 1 to 3, wherein the fixing part includes a connecting part that connects the first heat exchanger element and the second heat exchanger element.
7. Hang the heat exchanger,
   placing the heat exchanger on a pedestal;
   The first end of the frame is fixed to the pedestal, and the second end of the frame is fixed to a fixing part attached to the heat exchanger, so that the heat exchanger is supported from the side by the frame. A positioning method for positioning the heat exchanger.
8. After implementing the positioning method according to claim 7,
   Release the suspended state of the heat exchanger,
   A method for assembling a heat exchanger unit in which a large frame larger in size than the frame is fixed to the pedestal and the heat exchanger to support the heat exchanger by the large frame.

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