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JP-7856908-B2 - Heat source unit

JP7856908B2JP 7856908 B2JP7856908 B2JP 7856908B2JP-7856908-B2

Inventors

  • 井上 賢一郎
  • 杉戸 輝彦

Assignees

  • ダイキン工業株式会社

Dates

Publication Date
20260512
Application Date
20231214

Claims (15)

  1. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and is fastened to the frame (Fa5, Fa6) of the first housing portion (42A). The heat source unit includes fans (5A, 5B) positioned on one side of the internal space (S2A) in a third direction perpendicular to the first and second directions. The second plate portion (Fe22) faces the internal space (S2A) of the first housing portion (42A) in the first direction , and the first housing portion (42A) includes a column portion (Fc2) that supports the fan (5A, 5B) or the housing (43A) in which the fan (5A, 5B) is housed from the other side of the third direction. The second plate portion (Fe22) is attached to the column portion (Fc2), The second plate portion (Fe22) is opposite the column portion (Fc2) in the second direction, A first engaging portion (Fe22c) is provided on the surface of the second plate portion (Fe22) that faces the column portion (Fc2). A heat source unit in which a second engaging portion (Fc21) that engages with the first engaging portion (Fe22c) is provided on the surface of the column portion (Fc2) that faces the second plate portion (Fe22) .
  2. The second plate portion (Fe22) has a shape that extends from the first plate portion (Fe21) in one direction of the second direction, The heat source unit according to claim 1, wherein the first plate portion (Fe21) is detachably fastened to the frame (Fa5, Fa6) of the first housing portion (42A) from the other side of the second direction.
  3. The air heat exchanger (12A) of the first housing portion (42A) is inclined with respect to the third direction, The heat source unit according to claim 1 or claim 2 , wherein the first plate portion (Fe21) of the first partition plate (Fe2) extends along the inclination direction of the air heat exchanger (12A) of the first housing portion (42A).
  4. The column portion (Fc2) has a shape that extends along the third direction, The heat source unit according to claim 3 , wherein the second plate portion (Fe22) has a smaller dimension in the second direction as it moves toward the other direction in the third direction.
  5. The heat source unit according to claim 1 or claim 2, wherein the air heat exchanger (12A) of the first housing portion (42A), the first partition plate (Fe2), and the column portion (Fc2) are arranged in the order of the air heat exchanger (12A) of the first housing portion (42A), the first partition plate (Fe2), and the column portion (Fc2) along the first direction.
  6. The heat source unit according to claim 1 or 2, wherein the air heat exchanger (12A, 12B, 12C, 12D) has an L-shape.
  7. The plurality of housing portions (42) include a second housing portion (42B) adjacent to the first housing portion (42A) in the first direction, The second housing portion (42B) has a second partition plate (Fe1) that faces the internal space (S2B) of the second housing portion (42B) in the first direction and also faces the second direction. The heat source unit according to claim 1 or claim 2, wherein the first partition plate (Fe2) and the second partition plate (Fe1) face each other in the first direction.
  8. The heat source unit according to claim 1 or claim 2, wherein the first plate portion (Fe21) forms an air intake (I1) into the internal space (S2A) of the first housing portion (42A).
  9. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and is fastened to the frame (Fa5, Fa6) of the first housing portion (42A). The second plate portion (Fe22) faces the internal space (S2A) of the first housing portion (42A) in the first direction , The heat source unit includes fans (5A, 5B) positioned on one side of the internal space (S2A) in a third direction perpendicular to the first and second directions. The first housing portion (42A) includes a column portion (Fc2) that supports the fan (5A, 5B) or the housing (43A) in which the fan (5A, 5B) is housed from the other side of the third direction. The second plate portion (Fe22) is attached to the column portion (Fc2), The air heat exchanger (12A) of the first housing portion (42A) is inclined with respect to the third direction, The first plate portion (Fe21) of the first partition plate (Fe2) extends along the inclination direction of the air heat exchanger (12A) of the first housing portion (42A), The column portion (Fc2) has a shape that extends along the third direction, The second plate portion (Fe22) is a heat source unit in which the dimensions in the second direction become smaller as it moves toward the other direction in the third direction.
  10. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and is fastened to the frame (Fa5, Fa6) of the first housing portion (42A). The second plate portion (Fe22) faces the internal space (S2A) of the first housing portion (42A) in the first direction , The first housing portion (42A) is equipped with a thermistor located in the internal space (S2A), The thermistor is a heat source unit located in a place visible from the outside of the first housing (42A) when the first partition plate (Fe2) is removed from the first housing (42A).
  11. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and is fastened to the frame (Fa5, Fa6) of the first housing portion (42A). The second plate portion (Fe22) faces the internal space (S2A) of the first housing portion (42A) in the first direction , The first partition plate (Fe2) is a heat source unit located on the movement trajectory of maintenance parts when the maintenance parts, which are located in the internal space (S2A) of the first housing part (42A), are removed to the outside of the first housing part (42A).
  12. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and is fastened to the frame (Fa5, Fa6) of the first housing portion (42A). The second plate portion (Fe22) faces the internal space (S2A) of the first housing portion (42A) in the first direction , The heat source unit includes fans (5A, 5B) positioned on one side of the internal space (S2A) in a third direction perpendicular to the first and second directions. The first housing portion (42A) includes a column portion (Fc2) that supports the fan (5A, 5B) or the housing (43A) in which the fan (5A, 5B) is housed from the other side of the third direction. The second plate portion (Fe22) engages with the column portion (Fc2) without being fastened, forming a heat source unit.
  13. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces the internal space (S2A) of the first housing portion (42A) in a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, and the upper and lower parts of the first plate portion (Fe21) are fastened to the frame (Fa5, Fa6) of the first housing portion (42A) . The fastening point between the first plate portion (Fe21) and the frame (Fa6) at the lower part of the first plate portion (Fe21) is provided on a surface of the first plate portion (Fe21) that extends in the vertical direction. The second plate portion (Fe22) is a heat source unit facing the first direction with respect to the internal space (S2A) of the first housing portion (42A).
  14. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces the internal space (S2A) of the first housing portion (42A) in a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, and the upper and lower parts of the first plate portion (Fe21) are fastened to the frame (Fa5, Fa6) of the first housing portion (42A) . The fastening points between the first plate portion (Fe21) and the frame (Fa6) at the upper part and the fastening points between the first plate portion (Fe21) and the frame (Fa5) at the lower part are provided on surfaces facing the same direction. The second plate portion (Fe22) is a heat source unit facing the first direction with respect to the internal space (S2A) of the first housing portion (42A).
  15. Multiple housing sections (42) arranged in a row, Each of the aforementioned multiple housing sections (42) is provided with an air heat exchanger (12A, 12B, 12C, 12D), The first housing portion (42A), which is one of the multiple housing portions (42) mentioned above, comprises a first partition plate (Fe2) including a first plate portion (Fe21) and a second plate portion (Fe22), The first plate portion (Fe21) faces a second direction perpendicular to the first direction in which the plurality of housing portions (42) are aligned, with respect to the internal space (S2A) of the first housing portion (42A), and the upper and lower parts of the first plate portion (Fe21) are fastened to the transverse frames (Fa5, Fa6) of the first housing portion (42A) that extend in the first direction . The fastening point between the horizontal frame (Fa5) and the lower part of the first plate portion (Fe21) is provided on the surface of the horizontal frame (Fa5) that is erected in the first direction, The second plate portion (Fe22) is a heat source unit facing the first direction with respect to the internal space (S2A) of the first housing portion (42A).

Description

This disclosure relates to a heat source unit. A heat source unit that generates chilled water is known. The heat source unit described in Patent Document 1 comprises an air heat exchanger that exchanges heat between a refrigerant and outside air, a housing section in which the air heat exchanger is installed, a refrigerant circuit that performs a refrigeration cycle, and a water heat exchanger that exchanges heat between the refrigerant in the refrigerant circuit and water. In the heat source unit of Patent Document 1, multiple housing sections are arranged side by side. Patent No. 7224475 Figure 1 is a piping diagram of the heat source unit according to the embodiment.Figure 2 is a perspective view showing the external appearance of the heat source unit.Figure 3 is a front view of the heat source unit.Figure 4 is a rear view of the heat source unit.Figure 5 is a left-side view of the heat source unit.Figure 6 is a cross-sectional view taken along line A-A in Figure 3.Figure 7 is a cross-sectional view taken along the line B-B in Figure 5.Figure 8 is a schematic diagram showing the positional relationship of the components of the housing when viewed from above.Figure 9 is a perspective view of the first partition plate.Figure 10 is a perspective view of the second partition plate.Figure 11 is a perspective view showing the fastening process of the second partition plate of the first housing.Figure 12 is a perspective view showing the fastening process of the second partition plate of the first housing.Figure 13 is a perspective view showing the fastening process of the first partition plate of the second housing.Figure 14 is a perspective view showing the fastening process of the first partition plate of the second housing.Figure 15 is a piping diagram of a modified example of the heat source unit.Figure 16 is a perspective view showing the external appearance of a modified heat source unit.Figure 17 is a schematic diagram showing the positional relationship of the components of the housing when viewed from above in a modified example of the heat source unit. The embodiments of this disclosure will be described in detail below with reference to the drawings. This disclosure is not limited to the embodiments shown below, and various modifications are possible without departing from the technical idea of this disclosure. Since the drawings are for conceptual explanation of this disclosure, dimensions, ratios, or numbers may be exaggerated or simplified as necessary for ease of understanding. (1) Overview The heat source unit (1) according to this embodiment is used as a heat source for an air conditioning system. The air conditioning system provides air conditioning for offices, shopping malls, factories, etc. The heat source unit (1) is a chilling unit dedicated to cooling that generates chilled water. The heat source unit (1) is an air-cooled chilling unit. (2) Configuration of the refrigerant circuit The heat source unit (1) of this embodiment has a plurality of refrigerant circuits (10). As shown in Figure 1, the heat source unit (1) of this embodiment has a first refrigerant circuit (10A), a second refrigerant circuit (10B), a third refrigerant circuit (10C), and a fourth refrigerant circuit (10D). The number of refrigerant circuits (10) is merely an example and may be one, two, three, or five or more. The basic configuration of the first refrigerant circuit (10A), the second refrigerant circuit (10B), the third refrigerant circuit (10C), and the fourth refrigerant circuit (10D) is the same. In Figure 1, for convenience, the details of the third refrigerant circuit (10C) and the fourth refrigerant circuit (10D) are omitted. Each refrigerant circuit (10) is filled with refrigerant. Each refrigerant circuit (10) performs a vapor compression type refrigeration cycle by circulating the refrigerant. The first refrigerant circuit (10A) mainly comprises a first compressor (11A), a first air heat exchanger (12A), and a first expansion valve (13A). The first refrigerant circuit (10A) also comprises a first subcooling heat exchanger (14A) and a first accumulator (15A). The first compressor (11A) compresses the inhaled refrigerant and discharges the compressed refrigerant. The first compressor (11A) is, for example, a scroll compressor, but may be other types of compressors such as screw, turbo, or rotary compressors. The first air heat exchanger (12A) is an outdoor heat exchanger that exchanges heat between the refrigerant and the outdoor air. The first air heat exchanger (12A) is a fin-and-tube type heat exchanger. In this example, the first air heat exchanger (12A) functions only as a heat exchanger (condenser) that releases heat from the refrigerant. The first expansion valve (13A) reduces the pressure of the refrigerant after condensation. The first expansion valve (13A) is, for example, an electronic expansion valve. The first subcooling heat exchanger (14A) cools the refrigerant after heat release and incre