JP2018189268A - Heat pump device and method for changing take-out position of circulation liquid pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat pump device which can be aligned in a less space regardless of an aligning direction.SOLUTION: A heat pump device 1 includes: a housing 30; a W/R heat exchanger 23; a first panel 41; and a second panel 48. The housing 30 includes a back panel 32 on which a first opening 32b is formed, and a left panel 33 on which a second opening 33b is formed. The W/R heat exchanger 23 is provided inside the housing 30 so as to form a first pipe arrangement space and a second pipe arrangement space so as to exchange heat of a circulation liquid and coolant. The first panel 41 can be attached to any of the first opening 32b and the second opening 33b, and a pipe insertion part is formed through which a circulation liquid pipe 71 can be inserted while being attached to the first opening 32b or the second opening 33b. The second panel 48 can be attached to any of the first opening 32b and the second opening 33b, and has a shape corresponding to the first panel 41.SELECTED DRAWING: Figure 1

Description

  The present invention mainly relates to a heat pump apparatus to which a circulating fluid pipe is connected.

  2. Description of the Related Art Conventionally, a heat pump device that adjusts the temperature of a circulating fluid using a heat exchanger and cools or warms the external device by supplying the circulating fluid to the external device using a circulating fluid pipe is known. . Patent Documents 1 and 2 disclose this type of heat pump device (chiller).

  The heat pump devices of Patent Documents 1 and 2 include a rectangular parallelepiped casing (package). In Patent Documents 1 and 2, a water inlet and a water outlet for passing the circulating fluid pipe are formed in the long side in a plan view.

JP 2014-145525 A JP 2014-147220 A

  In the heat pump devices having the configurations of Patent Documents 1 and 2, the circulating fluid piping projects outward from the long side in a plan view. Accordingly, when a plurality of heat pump devices are arranged side by side so that the long sides are opposed to each other in plan view, a very large space is required between adjacent heat pump devices. Therefore, the heat pump device having this configuration has to be arranged side by side so that the short sides in plan view are opposed to each other.

  The present invention has been made in view of the above circumstances, and a main object thereof is to provide a heat pump device having a configuration that can be arranged side by side in a space-saving manner regardless of the arrangement direction.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the 1st viewpoint of this invention, the heat pump apparatus of the following structures is provided. That is, this heat pump device includes a housing, a heat exchanger, a first panel, and a second panel. The housing includes a back plate having a first opening and a side plate having a second opening. The heat exchanger can be connected to a circulating fluid pipe through which a circulating fluid that cools or heats the external device flows by circulating between the external device, the back plate, and the side plate. It arrange | positions inside the said housing | casing so that the piping arrangement | positioning space which can arrange | position the said circulating fluid piping is formed in between, and heat exchange of a circulating fluid and a refrigerant | coolant is performed. The first panel can be attached to either the first opening or the second opening, and can circulate through the circulating fluid pipe while being attached to the first opening or the second opening. A liquid pipe insertion portion is formed. The second panel can be attached to either the first opening or the second opening, and has a shape corresponding to the first panel.

  When the first panel is attached to the first opening of the back plate, the circulating fluid piping is taken out from the back surface of the housing, so that a plurality of heat pump devices can be arranged side by side in a space-saving manner so that the side surfaces face each other. In addition, when the first panel is attached to the second opening of the side plate, the circulating fluid piping is taken out from the side surface of the housing, so that the front and back surfaces, the front surfaces, or the back surfaces face each other, and a plurality of heat pump devices Can be arranged side by side in a space-saving manner.

  In the heat pump device, it is preferable that an electric wire insertion portion capable of inserting an electric wire in a state attached to the first opening or the second opening is formed on the first panel.

  By forming the wire insertion part in the first panel in this way, even when the circulating fluid piping is taken out from either the back surface or the side surface, the electrical wire can be inserted through the same surface as the surface from which the circulating fluid piping is taken out. it can. Therefore, when arranging the heat pump devices side by side, it is possible to prevent the electric wires from interfering.

  The heat pump device preferably has the following configuration. That is, the heat pump device includes a connecting member that connects the circulating fluid piping to the housing. The connecting member can be attached to either the vicinity of the first opening or the vicinity of the second opening.

  With this configuration, even if the first panel is attached to either the back plate or the side plate, the circulating fluid piping can be connected to the housing, and thus the circulating fluid piping can be stably held.

  The heat pump device preferably has the following configuration. That is, the circulating fluid pipe is configured to include a curved curved pipe and a straight straight pipe. The curved curved pipe is connected to the heat exchanger. The linear straight pipe is connected to the curved pipe and passes through the circulating fluid pipe insertion portion of the first panel attached to the second opening. The straight pipe can be connected to the heat exchanger, and is inserted into the circulating fluid pipe insertion portion of the first panel attached to the first opening by being connected to the heat exchanger.

  Thereby, even if it is a case where the 1st panel is attached to any of a back board and a side board, since the same straight line piping can be used, a number of parts can be reduced.

  According to the 2nd viewpoint of this invention, the following circulating fluid piping taking-out position change methods are provided. That is, this circulating fluid piping take-out position changing method is performed for a heat pump device including a housing, a heat exchanger, a circulating fluid piping, a first panel, and a second panel. The housing includes a back plate having a first opening and a side plate having a second opening. The heat exchanger is disposed inside the casing and circulates between the external device and heat-exchanges the circulating fluid and the refrigerant for cooling or heating the external device. The circulating fluid piping is formed so as to extend from the heat exchanger toward the first opening. The first panel is attached to the back plate so as to block at least a part of the first opening, and a circulating fluid piping insertion portion is formed through which the circulating fluid piping is inserted. The second panel is attached to the side plate so as to close at least a part of the second opening, and has a shape corresponding to the first panel. This circulating fluid piping removal position changing method includes a first panel removing step, a second panel removing step, a piping orientation changing step, a second panel attaching step, and a first panel attaching step. In the first panel recording / removing step, the first panel attached to the back plate is removed. In the second panel recording / removing step, the second panel attached to the side plate is removed. In the piping orientation changing step, the orientation of the circulating fluid piping is changed so that the circulating fluid piping extends toward the second opening. In the second panel attaching step, the second panel is attached to the back plate so as to close at least a part of the first opening. In the first panel attaching step, the first panel is attached to the side plate so as to close at least a part of the second opening.

  Thereby, the heat pump device configured to extract the circulating fluid piping from the back surface of the housing can be changed to a heat pump device configured to extract the circulating fluid piping from the side surface of the housing. Therefore, by performing the above method according to the arrangement of the heat pump devices, it is possible to correspond to two arrangement directions.

The perspective view of the heat pump apparatus of the back extraction layout which concerns on one Embodiment of this invention. The refrigerant circuit figure of a heat pump apparatus. The plane sectional view of the heat pump device of back extraction layout. The disassembled perspective view which shows the structure which attaches a 1st panel to a 1st base panel. The disassembled perspective view which shows the structure which attaches a 2nd panel to a 2nd base panel. The disassembled perspective view which shows the structure which attaches a 1st panel to a 2nd base panel. The disassembled perspective view which shows the structure which attaches a 2nd panel to a 1st base panel. The expanded perspective view of the heat pump apparatus of the back extraction layout after the removal of a 1st panel, a 1st base panel, a 2nd panel, and a 2nd base panel. The perspective view of the heat pump apparatus of the left side extraction layout. The plane sectional view of the heat pump device of the left side extraction layout. The expansion perspective view of the heat pump apparatus of the left side extraction layout after removing the 1st panel, the 1st base panel, the 2nd panel, and the 2nd base panel. The expansion perspective view which shows the structure of the connection part holding member with which the heat pump apparatus of a left side surface extraction layout is provided. Schematic which shows the example of the arrangement | sequence method of a heat pump apparatus.

  Next, embodiments of the present invention will be described with reference to the drawings. First, with reference to FIG.1 and FIG.2, the outline | summary of the heat pump apparatus 1 which concerns on embodiment is demonstrated. FIG. 1 is a perspective view of a heat pump device 1 having a rear extraction layout. FIG. 2 is a refrigerant circuit diagram of the heat pump device 1.

  The heat pump device 1 is a chiller for cooling or heating an external device (not shown). The heat pump device 1 lowers or raises the temperature of the liquid by performing heat exchange between the liquid introduced into the heat pump device 1 from the outside and the refrigerant. The heat pump device 1 can continuously cool or warm the external device with the liquid whose temperature has decreased or increased.

  In the present specification, the refrigerant is a medium that carries heat, and is used to raise the temperature of the liquid introduced into the heat pump apparatus 1 and the fluid used to lower the temperature of the liquid introduced into the heat pump apparatus 1. And a fluid used in the above. In the present embodiment, the liquid introduced into the heat pump device 1 and heat-exchanged with the refrigerant will be described as water. Also, water for cooling the external device due to heat exchange with the refrigerant and for cooling the external device is cold water, and water for which the temperature has increased due to heat exchange with the refrigerant for heating the external device. Water is referred to as hot water, cold water and hot water are collectively referred to as cold / hot water, and liquid and cold / hot water introduced into the heat pump device 1 and heat-exchanged with the refrigerant are collectively referred to as circulating liquid. In the following description, terms describing the positional relationship, size, shape, etc. include not only a configuration in which the meaning of the term is completely established, but also a configuration in which the meaning of the term is substantially established. .

  Hereinafter, the refrigerant circuit of the heat pump device 1 will be briefly described. As shown in FIG. 2, the heat pump device 1 includes an accumulator 11, a compressor 12, an oil separator 13, a four-way valve 14, a receiver 18, an A / R heat exchanger 22, and a W / R heat exchanger 23. And comprising. These devices are arranged in a housing 30 shown in FIG.

  The accumulator 11 separates the refrigerant into liquid and gas and supplies the refrigerant in the gas state to the compressor 12. Thereby, liquid compression in the compressor 12 is prevented. The compressor 12 is driven by an unillustrated electric motor or engine. The compressor 12 compresses the refrigerant supplied from the accumulator 11 to change it into a high-temperature and high-pressure gas state. The compressor 12 sends this refrigerant to the oil separator 13.

  The oil separator 13 separates the lubricating oil for the compressor 12 from the gaseous refrigerant. The separated lubricating oil is returned to the compressor 12 by a circuit (not shown). The refrigerant from which the lubricating oil is separated by the oil separator 13 is supplied to the four-way valve 14. The four-way valve 14 is formed with four ports, and the refrigerant supply destination is different between the cooling operation and the heating operation.

  First, the refrigerant flow during the cooling operation will be described. During the cooling operation, the four-way valve 14 supplies the refrigerant to the A / R heat exchanger 22 as shown by a solid line in FIG. In the A / R heat exchanger 22, heat exchange for transferring heat from the refrigerant to the outside air is performed. This heat exchange changes the refrigerant into a liquid state. Further, as shown in FIG. 1, a fan 21 that takes in outside air and promotes heat exchange is disposed near the A / R heat exchanger 22. The refrigerant after the heat exchange is performed by the A / R heat exchanger 22 is supplied to the receiver 18.

  The receiver 18 stores a liquid refrigerant. The refrigerant supplied to the receiver 18 is then supplied to the W / R heat exchanger 23. In the W / R heat exchanger 23, heat exchange is performed to transfer heat from the water introduced via the circulating liquid pipe 71 to the refrigerant. By this heat exchange, the temperature of the water is lowered to become cold water. The cold water is supplied to an external device via another circulating fluid pipe 71. Moreover, a refrigerant | coolant changes to gaseous state by this heat exchange. The refrigerant after heat exchange is performed by the W / R heat exchanger 23 is supplied to the accumulator 11 via the four-way valve 14. The cooling operation is performed as described above.

  Next, the flow of the refrigerant during the heating operation will be described. At the time of heating, the four-way valve 14 supplies the refrigerant supplied from the oil separator 13 to the W / R heat exchanger 23 as shown by a chain line in FIG. In the W / R heat exchanger 23, heat exchange is performed in which heat is transferred from the refrigerant to water introduced through the circulating liquid pipe 71. By this heat exchange, the temperature of water rises and becomes warm water. The hot water is supplied to an external device via another circulating fluid pipe 71. Moreover, this heat exchange changes the refrigerant into a low-temperature and high-pressure liquid. The refrigerant after heat exchange is performed by the W / R heat exchanger 23 is supplied to the receiver 18.

  The receiver 18 is a member for storing a liquid refrigerant. The refrigerant supplied to the receiver 18 is then supplied to the A / R heat exchanger 22. In the A / R heat exchanger 22, heat exchange is performed to transfer heat from the outside air to the refrigerant. This heat exchange changes the refrigerant into a gaseous state. The refrigerant after the heat exchange is performed by the A / R heat exchanger 22 is supplied to the accumulator 11 through the four-way valve 14. The heating operation is performed as described above.

  The heat pump device 1 of the present embodiment can change the extraction surface of the circulating fluid pipe 71. Specifically, as shown in FIG. 1, the heat pump device 1 can realize a layout for extracting the circulating fluid piping 71 from the back surface of the housing 30 (hereinafter referred to as a back surface extraction layout), and can replace some components and By performing the replacement, it is possible to realize a layout (left-side extraction layout) in which the circulating fluid pipe 71 is extracted from the left side surface of the housing 30 as shown in FIG. Hereinafter, a configuration for changing the extraction surface of the circulating fluid piping 71 will be described.

  First, the heat pump device 1 having a rear extraction layout will be described with reference to FIGS. 3 to 5. FIG. 3 is a plan sectional view of the heat pump device 1 having a rear extraction layout. FIG. 4 is an exploded perspective view showing a configuration for attaching the first panel 41 to the first base panel 32a. FIG. 5 is an exploded perspective view showing a configuration in which the second panel 48 is attached to the second base panel 33a.

  The housing 30 of the heat pump device 1 has a substantially rectangular parallelepiped shape. The housing 30 has a rectangular shape in plan view. Of the outer surface of the housing 30, two surfaces corresponding to long sides in a plan view are a front surface and a back surface, and two surfaces corresponding to short sides in a plan view are a left side surface and a right side surface. Further, the rear surface is a surface configured to be able to take out the circulating fluid pipe 71. The left side surface is a surface located on the left side when the front of the heat pump device 1 is viewed (the same applies to the right side surface). In the following description, the back side of the housing 30 is simply referred to as “back side” (the same applies to other surfaces).

  As shown in FIGS. 1 and 3, the housing 30 includes a regular plate 31, a back plate 32, a left side plate 33, and a right side plate 34. The outer surface of the regular plate 31 constitutes the front surface of the housing 30. The outer surface of the back plate 32 constitutes the back surface of the housing 30. The outer surface of the left side plate 33 constitutes the left side surface of the housing 30. The outer surface of the right side plate 34 constitutes the right side surface of the housing 30. The front plate 31 to the right side plate 34 may be a single plate-like member, or may have a configuration in which a plurality of plate-like members are connected.

  The housing 30 further includes a frame 60 in which rod-shaped members extending in various directions are combined. The front plate 31 to the right side plate 34 are detachably attached to the frame 60 with bolts or the like. In the present embodiment, the positive plate 31 to the right side plate 34 are flat plates, but at least one may include a curved portion, a stepped portion, or the like. That is, the shape of the housing 30 is not limited to a rectangular parallelepiped shape as long as the front, back, left side, and right side can be recognized. However, it is preferable that at least a portion of the housing 30 from which the circulating fluid pipe 71 is taken out and the vicinity thereof have a flat plate shape.

  The back plate 32 includes a first base panel 32a. The first base panel 32 a constitutes a part of the back plate 32. More specifically, the first base panel 32 a is a part constituting the vicinity of the left side end portion of the lower portion of the back plate 32. The first base panel 32a is L-shaped, and is composed of a portion that extends vertically at the end on the left side, and a portion that extends toward the right side at the upper end. In other words, a cutout is formed in the first base panel 32a. With this configuration, the first opening 32 b is formed in the back plate 32. In the rear extraction layout, the first panel 41 is attached to the first opening 32b. In other words, the first panel 41 is attached to the back plate 32 so as to block at least a part of the first opening 32b.

  As shown in FIG. 4, the first panel 41 includes a first panel member 41 a and a second panel member 41 b. The 1st panel member 41a is a substantially L-shaped and plate-shaped member in which the rectangular notch was formed. The 2nd panel member 41b is a rectangular plate-shaped member arrange | positioned so that the notch of the 1st panel member 41a may be covered. As shown in FIG. 4, a plurality of mounting holes 411 are formed in the first panel member 41a, and a plurality of mounting holes 412 are formed in the second panel member 41b. The first panel member 41a and the second panel member 41b are connected by joining at least one of the mounting hole 411 and the mounting hole 412 and fastening a bolt or the like. Further, different mounting holes 413 are formed in the first panel member 41a and the second panel member 41b, respectively. The attachment hole 413 is used for attaching the first panel 41 to the first base panel 32a. Specifically, a plurality of mounting holes 321 are formed in the first base panel 32a, and the first panel 41 and the first base panel 32a have at least one of the mounting holes 413 and the mounting holes 321 aligned with each other. Are connected by fastening bolts. Note that the first panel 41 (specifically, the first panel member 41a) further has an attachment hole 415 for direct attachment to the frame 60 or the like.

  The first panel member 41a and the second panel member 41b are formed with substantially semicircular cutouts whose directions are different by 180 degrees. By connecting the 1st panel member 41a and the 2nd panel member 41b, these notches are also connected and become a circular through-hole, for example. This through hole is a pipe insertion part 43 and is a part through which the circulating fluid pipe 71 is inserted. The pipe insertion portion 43 is formed at a position corresponding to the circulating fluid pipe 71 in the first panel member 41a and the second panel member 41b that are connected to each other. In this embodiment, the pipe insertion part 43 is formed so that two may be lined up and down. Further, the electric wire insertion portion 44 is formed with a plurality of electric wire insertion portions 44 that are through holes for inserting the electric wires 27 for transmitting electric signals. The electric wire insertion part 44 is formed in a circular shape, for example. Since the 1st panel 41 should just block at least one part of the 1st opening 32b, even if it is a case where the piping insertion part 43, the electric wire insertion part 44, etc. are formed, the 1st panel 41 is the 1st opening. 32b is blocked.

  The left side plate 33 includes a second base panel 33a. The second base panel 33 a constitutes a part of the left side plate 33. More specifically, the second base panel 33 a is a part constituting a part of the lower part of the left side plate 33. The second base panel 33a is L-shaped, and includes a portion that extends vertically at the front end portion and a portion that extends toward the back surface at the upper end. In other words, a cutout is formed in the second base panel 33a. With this configuration, the second opening 33 b is formed in the left side plate 33. In the rear extraction layout, the second panel 48 is attached to the second opening 33b. In other words, the second panel 48 is attached to the left side plate 33 so as to block at least a part of the second opening 33b.

  As shown in FIG. 5, the second panel 48 is a single substantially rectangular plate-shaped member. The second panel 48 has a shape corresponding to the first panel 41 (for example, a shape having substantially the same contour position). In other words, the vertical dimension and the horizontal dimension of the second panel 48 are substantially equal to the vertical dimension and the horizontal dimension of the first panel 41, respectively. For example, when the second panel 48 is overlaid on the first panel 41, the contours of the two substantially match. Therefore, the 2nd panel 48 and the 1st panel 41 are comprised so that the opening of the same shape can be closed. A plurality of attachment holes 481 are formed in the second panel 48. The attachment hole 481 is used for attaching the second panel 48 to the second base panel 33a. Specifically, a plurality of mounting holes 331 are formed in the second base panel 33a, and the second panel 48 and the second base panel 33a have at least one of the mounting holes 481 and the mounting holes 331 aligned. Are connected by fastening bolts. The second panel 48 further has an attachment hole 482 for direct attachment to the frame 60 or the like.

  Here, as shown in FIGS. 6 and 7, the first panel 41 can be attached to the second base panel 33a (second opening 33b), and the second panel 48 can be attached to the first base panel 32a (first first panel). It can also be attached to the opening 32b). Specifically, the diameter and arrangement of the mounting holes 413 formed in the first panel 41 for mounting on the base panels 32a and 33a, and the mounting formed on the second panel 48 for mounting on the base panels 32a and 33a. The diameter and arrangement of the holes 481 are the same. Similarly, the diameter and arrangement of the mounting holes 321 formed in the first base panel 32 a for attaching the first panel 41 and the second panel 48, and the second base for attaching to the first panel 41 and the second panel 48. The diameter and arrangement of the mounting holes 331 formed in the panel 33a are the same. The diameter and arrangement of the attachment holes 415 formed in the first panel 41 for attachment to the frame 60 and the diameter and arrangement of the attachment holes 482 formed in the second panel 48 for attachment to the frame 60 are the same. It is. Similarly, the diameter and arrangement of mounting holes (not shown) for mounting the first panel 41 and the second panel 48 are the same on the back side and the left side of the frame 60. In addition, the arrangement of the mounting holes described above as the same arrangement does not have to be completely coincident. For example, an attachment hole (not shown) for attaching the first panel 41 and an attachment hole (not shown) for attaching the second panel 48 may be both formed in the frame 60 at different positions ( The same applies to other members). The diameters of the mounting holes may not be completely the same between the first base panel 32a and the second base panel 33a, and between the first panel 41 and the second panel 48.

  The casing 30 is divided into upper and lower parts, and the fan 21 and the A / R heat exchanger 22 are arranged in the upper space. In addition, a control box 26, a W / R heat exchanger 23, and a circulating fluid pipe 71 are disposed in a space below the housing 30. Although not shown in FIG. 1, the accumulator 11, the compressor 12, the oil separator 13, the receiver 18, and the like are also arranged in this lower space (specifically, on the right side of the W / R heat exchanger 23). ing.

  As shown in FIG. 1, the control box 26 is disposed closer to the front side than the center in the front-rear direction. The control box 26 accommodates the control device and breaker of the heat pump device 1. An operator can perform maintenance or the like by accessing the control box 26 from the front side by removing at least a part of the front plate 31.

  The W / R heat exchanger 23 performs heat exchange between the refrigerant and water as described above. As shown in FIGS. 3 and 8, the W / R heat exchanger 23 is connected to a refrigerant pipe 25 and a circulating liquid pipe 71. As with the control box 26, the W / R heat exchanger 23 is disposed closer to the front side than the center in the front-rear direction. Therefore, a relatively wide space (first piping arrangement space 91) is formed on the back side of the W / R heat exchanger 23. In the first piping arrangement space 91, large components such as the accumulator 11 to the receiver 18 and the control box 26 are not arranged on the back side of the W / R heat exchanger 23. In the present embodiment, a flange-like portion for connecting the circulating fluid pipe 71 is formed on the back side surface of the W / R heat exchanger 23. Therefore, in this embodiment, the circulating fluid piping 71 is arranged in the first piping arrangement space 91 not only in the rear extraction layout but also in the left extraction layout (see FIGS. 3 and 11). The W / R heat exchanger 23 is disposed at a position slightly away from the left side plate 33. As a result, a second piping arrangement space 92 is formed inside the housing 30. In the second piping arrangement space 92, the circulating fluid piping 71 is arranged only in the left side extraction layout (details will be described later).

  Two circulating fluid pipes 71 are connected to the W / R heat exchanger 23. The circulating fluid piping 71 is arranged side by side in the same manner as the piping insertion portion 43. One circulating fluid pipe 71 supplies cold / hot water to the external device, and the other circulating fluid piping 71 returns the water that has passed through the external device to the W / R heat exchanger 23. In the present embodiment, the two circulating fluid pipes 71 are the same in shape and layout except for the upper and lower positions, and thus the individual description is omitted. The circulating fluid pipe 71 is composed of only a straight pipe 71b whose pipe axis direction (longitudinal direction) is linear.

  As shown in FIGS. 3 and 8, the circulating fluid pipe 71 is connected to the housing 30 (specifically, the frame 60) via a connecting member 73. Specifically, the connecting member 73 is connected by a bolt or the like in the vicinity of the first opening 32b of the frame 60, or in the vicinity of the portion where the first base panel 32a or the like is attached. The attachment structure of the connecting member 73 and the circulating fluid pipe 71 will be briefly described. The circulating fluid pipe 71 has a double pipe structure, and a slit is formed in the outer tube. Further, a protruding portion is formed at the end of the connecting member 73, and this protruding portion is connected by being inserted into the slit of the outer pipe of the circulating fluid pipe 71. Two connecting members 73 are arranged side by side in the same manner as the circulating fluid pipe 71.

  Next, the heat pump device 1 having a left side extraction layout will be described with reference to FIGS. 9 to 12. FIG. 9 is a perspective view of the heat pump device 1 having a left side extraction layout. FIG. 10 is a plan sectional view of the heat pump device 1. FIG. 11 is an enlarged perspective view of the heat pump device 1 after the first panel 41, the first base panel 32a, the second panel 48, and the second base panel 33a are removed. FIG. 12 is an enlarged perspective view showing the configuration of the connection holding member 74 included in the heat pump device 1.

  As shown in FIG. 9, in the case of the left side extraction layout, the second panel 48 is attached to the first opening 32 b of the back plate 32 and the first panel 41 is attached to the second opening 33 b of the left side plate 33. The configuration in which the first panel 41 and the second panel 48 can be exchanged is as described above.

  In the left side extraction layout, as shown in FIG. 10 and FIG. 11 and the like, the circulating fluid pipe 71 includes a curved pipe 71a and a straight pipe 71b. The curved pipe 71a extends from the W / R heat exchanger 23 to the back side, and after the pipe axis direction has changed approximately 180 degrees in a U shape, it has further changed approximately 90 degrees to the left side. Accordingly, the curved pipe 71a is arranged so as to pass through both the first pipe arrangement space 91 and the second pipe arrangement space 92. The straight pipe 71b is the same as the pipe used in the rear surface extraction layout. The straight pipe 71b is connected to the curved pipe 71a and is disposed so as to extend to the left side. Accordingly, the straight pipe 71 b is also arranged so as to pass through the first pipe arrangement space 91. In the left side extraction layout, since the first panel 41 is attached to the second opening 33b of the second base panel 33a, the straight pipe 71b passes through the pipe insertion portion 43 as in the rear extraction layout.

  In the present embodiment, the straight pipe 71 b can be connected to the curved pipe 71 a and can be connected to the W / R heat exchanger 23. Accordingly, a similar connection structure is employed at each connection location. Specifically, each of the straight pipe 71b and the curved pipe 71a has a flange-like portion at the end. Each pipe is connected by joining flange-like parts and inserting bolts or the like into fastening holes (not shown) formed in these parts and fastening them. Accordingly, the diameter of the flange-shaped portion, the diameter of the mounting hole, and the arrangement of the mounting holes are common to the respective pipes. Further, the diameter of the flange-like portion of each pipe, the diameter of the mounting hole (not shown), and the arrangement of the mounting holes are the same as the diameter of the flange-like portion of the W / R heat exchanger 23 and the mounting hole (not shown). The diameter and the arrangement of the mounting holes are common.

  The arrangement of the W / R heat exchanger 23 and the lengths of the curved pipe 71a and the straight pipe 71b in the pipe axis direction are also important. In the present embodiment, the above arrangement and length are determined so that the protruding length of the straight pipe 71b from the housing 30 is substantially the same in the rear extraction layout and the left extraction layout.

  Also in the left side extraction layout, the circulating fluid pipe 71 is connected to the housing 30 using the same connecting member 73 as that of the rear extraction layout (see FIGS. 10 and 11). Specifically, the connecting member 73 is configured to be attachable not only to the frame 60 near the first opening 32b but also to the frame 60 near the second opening 33b. Specifically, attachment holes (not shown) for attaching the connecting member 73 are formed in both of these two frames. With this configuration, not only the straight piping 71b but also the connecting member 73 can be made common to the rear extraction layout and the left extraction layout, so that the layout can be changed at low cost.

  In the left side take-out layout, since the length of the circulating fluid pipe 71 in the pipe axis direction becomes long, in addition to the connecting member 73, the connection portion holding which is a member for connecting and holding the circulating fluid pipe 71 to the housing 30 is held. A member 74 is provided. As shown in FIG. 12, the connecting portion holding member 74 is a member extending so that the longitudinal direction thereof coincides with the vertical direction, the lower end is attached to the bottom surface inside the housing 30, and the upper end is the frame 60 (in detail). Is attached to a portion) arranged to connect the front side and the back side. Further, the connecting portion holding member 74 is formed with a plate-like extending portion 74a provided so as to extend toward a connecting portion (flange portion) between the curved pipe 71a and the straight pipe 71b. The extending portion 74a is fixed to the connecting portion (specifically, the connecting portion on the curved pipe 71a side) with a bolt or the like. The length of the extending portion 74a in the vertical direction is approximately equal to or longer than the upper and lower arrangement intervals of the circulating fluid pipe 71, and both of the circulating fluid pipes 71 arranged side by side can be fixed together. . In addition, the extension part 74a may be provided for every circulating fluid piping 71 arrange | positioned along with two vertically.

  The heat pump device 1 having the left side extraction layout has the above configuration. Next, an operation for changing from the rear extraction layout to the left extraction layout (circulating fluid piping extraction position changing method) will be described.

  First, the operator removes the first panel 41 from the back plate 32 of the housing 30 (first panel removal step). As a result, the first panel 41 that has closed the first opening 32b is removed, so that the first opening 32b is opened (the closed state is released). In the first panel removal step, the first base panel 32 a is removed from the housing 30 after the first panel 41 is removed from the first base panel 32 a and the like that are part of the back plate 32. Instead of this procedure, the first base panel 32a and the first panel 41 may be collectively removed from the housing 30, and then the first panel 41 may be removed from the first base panel 32a that is a part of the back plate 32. . Alternatively, only the first panel 41 may be removed without removing the first base panel 32a from the housing 30.

  Next, an operator removes the 2nd panel 48 from the left side board 33 of the housing | casing 30 (2nd panel removal process). Thereby, since the second panel 48 that has blocked the second opening 33b is removed, the second opening 33b is opened (the closed state is released). In the second panel removal step, the second base panel 33 a is removed from the housing 30 after the second panel 48 is removed from the second base panel 33 a and the like that are part of the left side plate 33. Instead of this procedure, the second base panel 33a and the second panel 48 may be removed together from the housing 30, and then the second panel 48 may be removed from the second base panel 33a that is a part of the left side plate 33. . Alternatively, only the second panel 48 may be removed without removing the second base panel 33a from the housing 30. The order of the first panel removal step and the second panel removal step may be reversed.

  After the first panel removing step and the second panel removing step, the operator changes the direction of the circulating fluid piping 71 so that the circulating fluid piping 71 extends toward the second base panel 33a (pipe orientation changing step). . Specifically, the operator removes the circulating fluid pipe 71 (straight pipe 71 b) from the W / R heat exchanger 23 and removes the connecting member 73 from the frame 60. Next, the operator connects the newly prepared curved pipe 71 a to the W / R heat exchanger 23. Next, the operator uses the newly prepared connection portion holding member 74 to connect to the connection portion of the curved pipe 71a. Next, the straight pipe 71 b is connected to the curved pipe 71 a and the connecting member 73 is attached to the frame 60.

  After the piping orientation changing step, the operator attaches the second panel 48 removed in the second panel removing step to the back plate 32 so as to close at least a part of the first opening 32b (second panel attaching step). In the second panel attaching step, the first base panel 32 a is attached to the housing 30, and then the second panel 48 is attached to the first base panel 32 a that is a part of the back plate 32. Instead of this procedure, after the second panel 48 is attached to the first base panel 32a or the like that is a part of the back plate 32, the first base panel 32a and the second panel 48 may be attached to the housing 30 together. good. When the first base panel 32a is not removed from the housing 30, the second panel 48 is attached to the first base panel 32a.

  Next, the worker attaches the first panel 41 removed in the first panel removal step to the left side plate 33 so as to close at least a part of the second opening 33b (first panel attachment step). In the first panel attaching step, after attaching the second base panel 33 a to the housing 30, the first panel 41 is attached to the second base panel 33 a that is a part of the left side plate 33. At this time, the circulating fluid pipe 71 (straight pipe 71b) is inserted through the pipe insertion portion 43 of the first panel 41. Instead of this procedure, after the first panel 41 is attached to the second base panel 33a or the like that is a part of the left side plate 33, the second base panel 33a and the first panel 41 may be attached to the housing 30 together. good. When the second base panel 33a is not removed from the housing 30, the first panel 41 is attached to the second base panel 33a. The order of the second panel attachment process and the first panel attachment process may be reversed.

  Through the above process, the layout change from the rear surface extraction layout to the left side surface extraction layout is completed. Here, as shown in the upper side of FIG. 13, when performing an arrangement (left-right arrangement) in which the side surfaces of the heat pump devices 1 are opposed to each other, the positions of the heat pump devices 1 are brought closer by making the heat pump device 1 a rear extraction layout. Efficient arrangement can be realized. Moreover, the circulating fluid piping 71 and the electric wire 27 can be easily routed. On the other hand, as shown in the lower side of FIG. 13, when performing an arrangement (front-rear arrangement) in which the front surface and the back surface of the heat pump device 1 are opposed to each other, the heat pump devices 1 are arranged in the left side extraction layout. Since the position of can be brought close, an efficient arrangement can be realized. Moreover, the circulating fluid piping 71 and the electric wire 27 can be easily routed.

  As described above, the heat pump device 1 of the present embodiment includes the housing 30, the W / R heat exchanger 23, the first panel 41, and the second panel 48. The housing 30 includes a back plate 32 having a first opening 32b and a left side plate 33 having a second opening 33b. The W / R heat exchanger 23 can be connected to a circulating fluid pipe 71 through which a circulating fluid that cools or warms the external device flows by circulating between the external device and the back plate 32. It is arranged inside the housing 30 so that one pipe arrangement space 91 is formed and a second pipe arrangement space 92 is formed between the left side plate 33 and heat exchange between water and refrigerant. I do. The first panel 41 can be attached to either the first opening 32b or the second opening 33b, and the piping through which the circulating fluid pipe 71 can be inserted in a state of being attached to the first opening 32b or the second opening 33b. An insertion part 43 is formed. The second panel 48 can be attached to either the first opening 32 b or the second opening 33 b and has a shape corresponding to the first panel 41.

  When the first panel 41 is attached to the first opening 32b of the back plate 32, the circulating fluid piping 71 is taken out from the back surface of the housing 30, so that the plurality of side surfaces face each other (that is, in a left-right arrangement). The heat pump devices 1 can be arranged side by side in a space-saving manner. Moreover, when the 1st panel 41 is attached to the 2nd opening 33b of the left side board 33, since the circulating fluid piping 71 is taken out from the left side surface of the housing | casing 30, the front and back, fronts, or backs are made to oppose. In this way (that is, in a back-and-forth arrangement), a plurality of heat pump devices 1 can be arranged side by side in a space-saving manner.

  Further, in the heat pump device 1 of the present embodiment, the first panel 41 is formed with an electric wire insertion portion 44 through which the electric wire 27 can be inserted in a state of being attached to the first opening 32b or the second opening 33b. .

  Thus, by forming the electric wire insertion part 44 in the first panel 41, the electric wire 27 on the same surface as the surface from which the circulating fluid pipe 71 is taken out, even when the circulating fluid pipe 71 is taken out from either the back surface or the side surface. Can be inserted. Therefore, in the case where the heat pump devices 1 are arranged side by side, it is possible to prevent the electric wires 27 from interfering.

  Further, the heat pump device 1 of the present embodiment includes a connecting member 73 that connects the circulating fluid pipe 71 to the housing 30. The connecting member 73 can be attached either near the first opening 32b or near the second opening 33b.

  With this configuration, the circulating fluid pipe 71 can be connected to the housing 30 regardless of whether the first panel 41 is attached to the back plate 32 or the left side plate 33, so that the circulating fluid pipe 71 can be stably connected. Can be held.

  Moreover, in the heat pump apparatus 1 of this embodiment, the circulating fluid piping 71 is comprised including the curved curved piping 71a and the linear straight piping 71b. The curved pipe 71 a is connected to the W / R heat exchanger 23. The straight pipe 71b is connected to the curved pipe 71a and passes through the pipe insertion portion 43 of the first panel 41 attached to the second opening 33b. The straight pipe 71b can be connected to the W / R heat exchanger 23. By connecting to the W / R heat exchanger 23, the straight pipe 71b is inserted into the first panel 41 attached to the first opening 32b. The part 43 is inserted.

  Thereby, even if it is a case where the 1st panel 41 is attached to any of the back board 32 and the left side board 33, since the same straight piping 71b can be used, a number of parts can be reduced.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  <Overall Configuration> In the above embodiment, the rear extraction layout and the left side extraction layout can be switched, but the rear extraction layout and the right side extraction layout may be switched.

  <W / R heat exchanger 23> In the above embodiment, the circulating fluid pipe 71 is connected to the back surface of the W / R heat exchanger 23, but is connected to another surface (for example, the left side surface or the top surface). Also good. In this case, only the straight pipe 71b may be used in the left side extraction layout, and the curved pipe 71a and the straight pipe 71b may be used in the rear extraction layout.

  <First Panel 41> The notches formed in the first panel member 41a and the second panel member 41b are not limited to semicircles, and may be different from each other. Moreover, the through-hole formed in one panel member may be sufficient if it can be attached by inserting circulating fluid piping. In this case, the first panel can be composed of a single panel member. In addition, the electric wire insertion part 44 may be abbreviate | omitted.

  <Second Panel 48> The second panel 48 may have the same shape as the first panel 41.

  <Circulating fluid piping 71> In this embodiment, the straight piping 71b is commonly used in two layouts, but the straight piping 71b may not be shared. In this case, in the left side extraction layout, the circulating fluid pipe 71 can be constituted by one pipe member.

  <Others> In the present embodiment, the first base panel 32a and the second base panel 33a have different shapes, but may have the same shape. In this case, the combined configuration of the first base panel 32a and the first panel 41 can be regarded as a “first panel”, and the combined configuration of the second base panel 33a and the second panel 48 can be regarded as a “second panel”.

DESCRIPTION OF SYMBOLS 1 Heat pump apparatus 30 Housing | casing 32 Back plate 32a 1st base panel 32b 1st opening 33 Left side plate 33a 2nd base panel 33b 2nd opening 41 1st panel 43 Piping insertion part (circulating fluid piping insertion part)
44 Electric wire insertion part 48 Second panel 71 Circulating fluid piping 71a Curved piping 71b Straight piping

Claims (5)

A housing including a back plate in which a first opening is formed, and a side plate in which a second opening is formed;
A circulating fluid pipe through which a circulating fluid for cooling or heating the external device circulates can be connected by circulating between the external device, the circulating fluid piping between the back plate and the side plate. A heat exchanger for exchanging heat between the circulating fluid and the refrigerant.
A circulating fluid pipe insertion portion that can be attached to either the first opening or the second opening and allows the circulating fluid pipe to be inserted in a state of being attached to the first opening or the second opening is formed. A first panel,
A second panel that can be attached to either the first opening or the second opening and has a shape corresponding to the first panel;
A heat pump device comprising: The heat pump device according to claim 1,
The heat pump device, wherein the first panel is formed with an electric wire insertion portion through which an electric wire can be inserted in a state of being attached to the first opening or the second opening. The heat pump device according to claim 1 or 2,
A connecting member for connecting the circulating fluid piping to the housing;
The heat pump device according to claim 1, wherein the connecting member can be attached to either the vicinity of the first opening or the vicinity of the second opening. The heat pump device according to any one of claims 1 to 3,
The circulating fluid piping is
A curved curved pipe connected to the heat exchanger;
A linear straight pipe that is connected to the curved pipe and is inserted through the circulating fluid pipe insertion portion of the first panel attached to the second opening;
It is composed including
The straight pipe is connectable to the heat exchanger, and is connected to the heat exchanger, thereby inserting the circulating fluid pipe insertion portion of the first panel attached to the first opening. A heat pump device. A housing including a back plate in which a first opening is formed, and a side plate in which a second opening is formed;
A heat exchanger that is arranged inside the housing and circulates between the external device and cools or heats the external device to exchange heat between the circulating fluid and the refrigerant;
A circulating fluid pipe formed to extend from the heat exchanger toward the first opening;
A first panel that is attached to the back plate so as to block at least a part of the first opening, and in which a circulating fluid pipe insertion portion for inserting the circulating fluid pipe is formed;
A second panel attached to the side plate so as to close at least a part of the second opening, and having a shape corresponding to the first panel;
For a heat pump device comprising
A first panel removal step of removing the first panel attached to the back plate;
A second panel removal step of removing the second panel attached to the side plate;
A pipe orientation changing step for changing the orientation of the circulating fluid piping so that the circulating fluid piping extends toward the second opening;
A second panel attachment step of attaching the second panel to the back plate so as to block at least a part of the first opening;
A first panel attachment step of attaching the first panel to the side plate so as to block at least a part of the second opening;
A circulating fluid piping take-out position changing method characterized by comprising:

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