WO2018070009A1 - Appareil de pompe à chaleur - Google Patents

Appareil de pompe à chaleur Download PDF

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Publication number
WO2018070009A1
WO2018070009A1 PCT/JP2016/080350 JP2016080350W WO2018070009A1 WO 2018070009 A1 WO2018070009 A1 WO 2018070009A1 JP 2016080350 W JP2016080350 W JP 2016080350W WO 2018070009 A1 WO2018070009 A1 WO 2018070009A1
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WO
WIPO (PCT)
Prior art keywords
shell
pipe
heat pump
pump device
refrigerant
Prior art date
Application number
PCT/JP2016/080350
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English (en)
Japanese (ja)
Inventor
周二 茂木
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/080350 priority Critical patent/WO2018070009A1/fr
Priority to JP2018544635A priority patent/JP6590078B2/ja
Publication of WO2018070009A1 publication Critical patent/WO2018070009A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle

Definitions

  • the present invention relates to a heat pump device.
  • a heat pump device that heats a liquid heat medium such as water using heat absorbed from outside air is widely used.
  • a heat pump device a refrigerant circuit in which a compressor, a gas cooler, a decompression device, and an evaporator are connected in an annular shape, and water supplied to a hot water tank after a hot water supply liquid passes through the gas cooler.
  • an apparatus comprising the circuit.
  • the water circuit of this apparatus is equipped with the shell heat exchanger which has a heat exchange part which contacts a compressor.
  • the shell heat exchanger has a configuration in which the jacket type is divided into two parts, and is attached around a cylindrical shell included in the compressor.
  • the shell heat exchanger can transfer the heat of the compressor from the shell surface to the heat medium flowing in the water circuit, it has the effect of improving the boiling efficiency and suppressing the overheating of the compressor.
  • the shell heat exchanger is a metal pipe, it is difficult to perform high-precision bending so as to be in close contact with the curved surface of the shell surface.
  • the conventional heat pump device has a structure in which the shell heat exchanger is fastened with a band or the like from the outside of the shell heat exchanger attached to the compressor in order to bring the shell heat exchanger into close contact with the shell surface of the compressor.
  • the structure tightened with a band or the like may gradually loosen due to the vibration of the compressor or the like. For this reason, the above-described conventional technology still has room for improvement in ensuring long-term reliability.
  • the present invention has been made to solve the above-described problems, and is a heat pump capable of maintaining the heat exchange efficiency of a shell heat exchanger that transmits heat of a compressor shell to a heat medium over a long period of time.
  • An object is to provide an apparatus.
  • a heat pump device includes a cylindrical shell, includes a compressor that compresses a refrigerant, and a pipe that wraps around the outer surface of the shell, and transmits the heat of the compressor to a heat medium that passes through the pipe.
  • a heat exchanger and a fixing member that is bonded to the outer surface of the shell and fixes the pipe line in close contact with the outer surface of the shell.
  • the pipe of the shell heat exchanger is closely fixed to the outer surface of the shell by the fixing member joined to the outer surface of the shell of the compressor. This makes it possible to maintain the heat exchange efficiency of the shell heat exchanger that transfers the heat of the compressor shell to the heat medium over a long period of time.
  • FIG. 1 It is a front view which shows the internal structure of the heat pump apparatus of Embodiment 1.
  • FIG. It is the external appearance perspective view which looked at the heat pump apparatus of Embodiment 1 from diagonally forward. It is the external appearance perspective view which looked at the heat pump apparatus of Embodiment 1 from diagonally back.
  • FIG. It is a figure which shows the refrigerant circuit and water circuit of a heat pump hot-water supply system provided with the heat pump apparatus of Embodiment 1.
  • FIG. It is a top view of the compressor with which the heat pump apparatus of Embodiment 1 is equipped, and a shell heat exchanger.
  • FIG. 6 is a diagram showing a part of a cross section of the compressor and shell heat exchanger in FIG. 5 cut along AA in the figure.
  • FIG. 1 is a front view showing the internal structure of the heat pump device 1 of the first embodiment.
  • FIG. 2 is an external perspective view of the heat pump device 1 according to the first embodiment as viewed obliquely from the front.
  • FIG. 3 is an external perspective view of the heat pump device 1 according to the first embodiment as viewed obliquely from behind.
  • FIG. 4 is a diagram illustrating a refrigerant circuit and a water circuit of the heat pump hot water supply system including the heat pump device 1 according to the first embodiment.
  • the heat pump device 1 of the present embodiment is installed outdoors.
  • the heat pump device 1 heats a liquid heat medium.
  • the heat medium in the present embodiment is water.
  • the heat pump device 1 generates hot water by heating water.
  • the heat medium in the present invention may be a brine other than water, such as a calcium chloride aqueous solution, an ethylene glycol aqueous solution, or an alcohol.
  • the heat pump apparatus 1 includes a base 17 that forms the bottom of the housing. On the base 17, as viewed from the front, a machine room 14 is formed on the right side, and a blower room 15 is formed on the left side. The machine room 14 and the blower room 15 are separated by a partition plate 16.
  • the casing that forms the outline of the heat pump device 1 includes a casing front surface portion 18, a casing rear surface portion 19, a casing top surface portion 20, a casing right side surface portion 21, And a housing left side surface portion 22. These components of the housing are formed from, for example, a sheet metal material.
  • FIG. 1 shows a state in which each part of the casing other than the base 17 is removed. Further, in FIG. 1, illustration of some of the constituent devices is omitted.
  • a compressor 2 that compresses refrigerant
  • an expansion valve 10 that depressurizes the refrigerant (not shown in FIG. 1)
  • a suction pipe 4 that connects these
  • a discharge A refrigerant pipe such as the pipe 5 is incorporated.
  • the compressor 2 includes a cylindrical shell 2a.
  • the compressor 2 includes a compression unit (not shown) and a motor (not shown) inside the shell 2a.
  • the compression unit performs a refrigerant compression operation.
  • the motor drives the compression unit.
  • the compressor motor is driven by the electric power supplied from the outside.
  • the refrigerant is sucked into the compressor 2 through the suction pipe 4.
  • a discharge pipe 5 that discharges the refrigerant compressed in the compressor 2 is connected to the upper portion of the compressor 2.
  • the expansion valve 10 has a coil built-in member attached to the outer surface of the main body. By energizing the coil from the outside, the internal flow resistance adjusting unit is operated to adjust the flow resistance of the refrigerant.
  • the expansion valve 10 can adjust the pressure of the high-pressure refrigerant on the upstream side and the pressure of the low-pressure refrigerant on the downstream side.
  • the expansion valve 10 is an example of a decompression device that decompresses the refrigerant.
  • the blower room 15 has a larger space than the machine room 14 in order to secure an air passage.
  • a blower 6 is incorporated in the blower chamber 15.
  • the blower 6 includes two to three propeller blades and a motor that rotationally drives the propeller blades. The motor and propeller blades are rotated by electric power supplied from the outside.
  • An air refrigerant heat exchanger 7 is installed on the rear side of the blower chamber 15 so as to face the blower 6.
  • the air refrigerant heat exchanger 7 includes a large number of thin aluminum fins and a long refrigerant pipe that reciprocates several times in close contact with the thin aluminum fins.
  • the air refrigerant heat exchanger 7 has a flat outer shape bent in an L shape.
  • the air refrigerant heat exchanger 7 is installed from the rear surface to the left side surface of the heat pump device 1. In the air refrigerant heat exchanger 7, heat is exchanged between the refrigerant in the refrigerant pipe and the air around the fins. The air volume of the air flowing between the fins and passing by the blower 6 is increased and adjusted, and the amount of heat exchange is increased and adjusted.
  • the air refrigerant heat exchanger 7 is an example of an evaporator that evaporates the refrigerant.
  • the water / refrigerant heat exchanger 8 is installed on the base 17 at the bottom of the blower chamber 15.
  • the water-refrigerant heat exchanger 8 is housed and installed in a rectangular parallelepiped storage container 12 in a state covered with a heat insulating material.
  • the water-refrigerant heat exchanger 8 is bent so that it can be stored in the storage container 12 with a long water pipe and a long refrigerant pipe in close contact with each other.
  • heat is exchanged between the refrigerant in the refrigerant pipe and the water in the water pipe, that is, the heat medium.
  • water, that is, the heat medium is heated.
  • a blower 6 is disposed above the water-refrigerant heat exchanger 8.
  • a shell heat exchanger 23 is attached to the shell 2 a of the compressor 2.
  • the shell heat exchanger 23 includes a helical line 23 a that is wound around the outer periphery of the shell 2 a of the compressor 2.
  • the pipe line 23a is in contact with the outer peripheral surface of the shell 2a so as to be able to conduct heat.
  • the pipe line 23a is fixed to the outer surface of the shell 2a by a holder 3 as a fixing member. Details of the structure of the holder 3 will be described later.
  • the shell 2a is filled with compressed high-temperature and high-pressure refrigerant gas.
  • the shell 2a is heated by the heat of the refrigerant gas.
  • the shell heat exchanger 23 transfers the heat of the shell 2a to water passing through the pipe line 23a, that is, a heat medium.
  • the water, that is, the heat medium passing through the pipe line 23a is heated by receiving the heat of the shell 2a.
  • a heat insulating material (not shown) that at least partially covers the shell heat exchanger 23 may be provided outside the shell heat exchanger 23.
  • the outlet portion of the compressor 2 is connected to the refrigerant inlet portion of the water refrigerant heat exchanger 8 via the discharge pipe 5.
  • the refrigerant outlet portion of the water refrigerant heat exchanger 8 is connected to the inlet portion of the expansion valve 10 in the machine chamber 14 via a refrigerant pipe.
  • the outlet part of the expansion valve 10 is connected to the refrigerant inlet part of the air refrigerant heat exchanger 7 via a refrigerant pipe.
  • the refrigerant outlet portion of the air refrigerant heat exchanger 7 is connected to the inlet portion of the compressor 2 via the suction pipe 4.
  • Other refrigerant circuit components may be attached in the middle of each refrigerant pipe.
  • an electrical component storage box 9 is installed in the upper part of the machine room 14.
  • An electronic substrate 24 is stored in the electrical product storage box 9.
  • electronic parts, electric parts and the like constituting each module for driving and controlling the compressor 2, the expansion valve 10, the blower 6 and the like are attached.
  • Each module is controlled as follows, for example.
  • the rotation speed of the motor of the compressor 2 is changed to a rotation speed of about several tens rps (Hz) to one hundred rps (Hz).
  • the opening degree of the expansion valve 10 is changed.
  • the rotational speed of the blower 6 is changed to a rotational speed of about several hundred rpm to 1,000 rpm.
  • the electrical product storage box 9 is provided with a terminal block 9a for connecting external electrical wiring.
  • a service panel 27 for protecting the terminal block 9 a and a water inlet valve 28 and a hot water outlet valve 29 described later is attached to the right side surface portion 21 of the housing.
  • a refrigerant is sealed in a sealed space of a refrigerant circuit included in the heat pump device 1.
  • the refrigerant may be, for example, a CO 2 refrigerant.
  • water circuit components including an internal pipe 30, an internal pipe 31, and an internal pipe 32 are incorporated in the machine chamber 14.
  • the internal pipe 30 connects between the water inlet valve 28 and the water inlet portion of the water refrigerant heat exchanger 8.
  • the internal pipe 31 connects between the hot water outlet of the water-refrigerant heat exchanger 8 and the inlet of the shell heat exchanger 23.
  • the internal pipe 32 connects between the outlet of the shell heat exchanger 23 and the hot water outlet valve 29.
  • the heat pump hot water supply system is configured by the heat pump device 1 and the hot water storage device 33.
  • the hot water storage device 33 includes a hot water storage tank 34 having a capacity of, for example, several hundred liters, and a water pump 35 for sending water in the hot water storage tank 34 to the heat pump device 1.
  • the heat pump device 1 and the hot water storage device 33 are connected via an external tube 36, an external tube 37, and electrical wiring (not shown).
  • the lower part of the hot water storage tank 34 is connected to the inlet of the water pump 35 via a pipe 38.
  • the external pipe 36 connects between the outlet of the water pump 35 and the water inlet valve 28 of the heat pump device 1.
  • the external pipe 37 connects between the hot water outlet valve 29 of the heat pump device 1 and the hot water storage device 33.
  • the external pipe 37 can communicate with the upper part of the hot water storage tank 34 via a pipe 39 in the hot water storage device 33.
  • the hot water storage device 33 further includes a mixing valve 40.
  • a hot water supply pipe 41 branched from a pipe 39, a water supply pipe 42 through which water supplied from a water source such as water supply passes, and a hot water supply pipe 43 through which hot water supplied to the user passes.
  • the mixing valve 40 adjusts the hot water supply temperature by adjusting the mixing ratio of hot water flowing from the hot water supply pipe 41, that is, high-temperature water, and water flowing from the water supply pipe 42, that is, low-temperature water.
  • the hot water mixed by the mixing valve 40 passes through the hot water supply pipe 43 and is sent to a user terminal such as a bathtub, a shower, a faucet, or a dishwasher.
  • a water supply pipe 44 branched from the water supply pipe 42 is connected to the lower part of the hot water storage tank 34. The water flowing from the water supply pipe 44 is stored below the hot water storage tank 34.
  • the heat storage operation is an operation of accumulating hot water in the hot water storage tank 34 by sending hot water heated by the heat pump device 1 to the hot water storage device 33.
  • the heat storage operation it is as follows.
  • the compressor 2, the blower 6, and the water pump 35 are operated.
  • the rotational speed of the motor of the compressor 2 can vary in the range of several tens of rps (Hz) to about 100 rps (Hz).
  • Hz rps
  • the rotational speed of the motor of the blower 6 is changed to about several hundred rpm to 1,000 rpm, and the flow rate of air passing through the air refrigerant heat exchanger 7 is changed, whereby the heat of the refrigerant and air in the air refrigerant heat exchanger 7 is changed.
  • Exchange amount can be adjusted and controlled. Air is sucked from the rear of the air refrigerant heat exchanger 7 installed behind the blower 6, passes through the air refrigerant heat exchanger 7, passes through the blower chamber 15, and is opposite to the air refrigerant heat exchanger 7. It is discharged to the front of the housing front face 18.
  • the expansion valve 10 adjusts the flow path resistance of the refrigerant. Thereby, the pressures of the high-pressure refrigerant on the upstream side and the low-pressure refrigerant on the downstream side of the expansion valve 10 can be adjusted and controlled.
  • the rotational speed of the compressor 2, the rotational speed of the blower 6, and the flow path resistance of the expansion valve 10 are controlled according to the installation environment and use conditions of the heat pump device 1.
  • the low-pressure refrigerant is sucked into the compressor 2 through the suction pipe 4.
  • the low-pressure refrigerant is compressed by the compression unit in the compressor 2 and becomes a high-temperature high-pressure refrigerant.
  • This high-temperature and high-pressure refrigerant is discharged from the compressor 2 to the discharge pipe 5.
  • the high-temperature and high-pressure refrigerant passes through the discharge pipe 5 and flows into the refrigerant inlet portion of the water-refrigerant heat exchanger 8.
  • the high-temperature and high-pressure refrigerant heats water by exchanging heat with water in the water-refrigerant heat exchanger 8 to generate hot water.
  • the refrigerant reduces the enthalpy and lowers the temperature while passing through the water-refrigerant heat exchanger 8.
  • the high-pressure refrigerant having the lowered temperature flows from the refrigerant outlet portion of the water refrigerant heat exchanger 8 through the refrigerant pipe to the inlet portion of the expansion valve 10.
  • This high-pressure refrigerant drops in temperature by being decompressed by the expansion valve 10 and becomes a low-temperature and low-pressure refrigerant.
  • the low-temperature and low-pressure refrigerant flows from the outlet portion of the expansion valve 10 through the refrigerant pipe and into the inlet portion of the air refrigerant heat exchanger 7.
  • the low-temperature and low-pressure refrigerant exchanges heat with air in the air refrigerant heat exchanger 7, increases enthalpy, flows into the suction pipe 4 from the outlet of the air refrigerant heat exchanger 7, and is sucked into the compressor 2. Thus, the refrigerant circulates and a heat pump cycle is performed.
  • the water in the hot water storage tank 34 flows into the water inlet portion of the water refrigerant heat exchanger 8 through the pipe 38, the outer pipe 36, the water inlet valve 28 and the inner pipe 30 by driving the water pump 35. To do.
  • This water exchanges heat with the refrigerant in the water refrigerant heat exchanger 8 and is heated to produce hot water.
  • This hot water flows into the inlet of the shell heat exchanger 23 through the inner pipe 31.
  • hotter hot water is generated.
  • the hot water flows from the outlet of the shell heat exchanger 23 through the inner pipe 32, the hot water outlet valve 29, the outer pipe 37 and the pipe 39 into the upper part of the hot water storage tank 34. By performing such a heat storage operation, hot water accumulates in the hot water storage tank 34 from the upper part toward the lower part.
  • the hot water heated by the heat pump device 1 may be directly supplied to the user side without accumulating in the hot water storage tank 34.
  • the heat medium heated by the heat pump device 1 may be used for heating or the like.
  • the following effects can be obtained by providing the shell heat exchanger 23.
  • the input of electric power to the compressor 2 can be reduced.
  • the efficiency of the heat pump device 1 is improved.
  • An increase in the temperature of the refrigerating machine oil in the compressor 2 and the temperature of the motor can be suppressed.
  • the damage of the sliding part in the compressor 2 and the damage of the motor winding can be more reliably suppressed.
  • the heat pump device 1 of the first embodiment is characterized by a structure for fixing the pipe line 23 a of the shell heat exchanger 23 in close contact with the outer surface of the shell 2 a of the compressor 2.
  • FIG. 5 is a plan view of the compressor 2 and the shell heat exchanger 23 provided in the heat pump device 1 of the first embodiment.
  • FIG. 5 is a diagram viewed from the axial direction of the shell 2 a of the compressor 2.
  • FIG. 6 is a view showing a part of a cross section of the compressor 2 and the shell heat exchanger 23 in FIG. 5 cut along AA in the drawing.
  • the pipe line 23a is arrange
  • the pipe line 23 a is fixed by the holder 3.
  • the holder 3 is formed from, for example, a sheet metal material.
  • the holder 3 is divided into a plurality of holder parts. 5 and 6 show the first holder part 3a and the second holder part 3b.
  • the holder 3 has an arcuate joint surface along the outer periphery of the shell 2a when viewed from the axial direction of the shell 2a.
  • the radius of curvature when the joining surface of the holder 3 is viewed from the axial direction of the shell 2a is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the joint surface of the holder 3 has a shape along the helical line 23a of the shell heat exchanger 23 when viewed from the side surface direction of the shell 2a.
  • the joint surface of the holder 3 is brazed to the shell 2a. Thereby, reliable heat conduction from the shell 2a to the holder 3 becomes possible.
  • the holder 3 Since the holder 3 is divided into a plurality of holder parts, the assembling property to the outer surface of the shell 2a is improved.
  • the 1st holder component 3a and the 2nd holder component 3b in a figure are joined with a clearance gap, they may be joined closely.
  • the holder 3 is elastically deformed with the pipe line 23a interposed therebetween, thereby biasing the pipe line 23a toward the side pressing the outer surface of the shell 2a.
  • the pipe line 23a is closely fixed to the shell 2a, reliable heat conduction from the shell 2a to the pipe line 23a becomes possible.
  • the holder 3 is also in contact with the pipe line 23a, heat conduction transmitted from the shell 2a to the pipe line 23a via the holder is also possible. Thereby, the heat conduction from the shell 2a to the pipe line 23a is remarkably increased.
  • FIG. 7 is a view of a part of the pipe line 23a of the shell heat exchanger 23 according to the first embodiment when viewed from the side surface side.
  • the holder 3 is omitted.
  • the pipe line 23a of the shell heat exchanger 23 is attached in the shape of a helix.
  • the pipe line 23a includes a first pipe part 23b, a second pipe part 23c, a first joint part 23d, and a second joint part 23e.
  • the pipeline 23a is as follows when viewed from the axial direction of the shell 2a.
  • the first pipe part 23b has an arc shape along the outer surface of the shell 2a. There is no restriction
  • the second pipe part 23c has an arc shape along the outer surface of the shell 2a. There is no restriction
  • the radius of curvature of the inner peripheral surface of the first pipe part 23b is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the radius of curvature of the inner peripheral surface of the second pipe part 23c is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the pipeline 23a is as follows when viewed from the side of the shell 2a.
  • the 1st pipe line part 23b has the shape of a helical line which advances, changing a position to an axial direction along the outer surface of the shell 2a.
  • a plurality of first pipe parts 23b are arranged in the axial direction of the shell 2a.
  • the 2nd pipe line part 23c has the shape of a helical line which advances, changing a position to an axial direction along the outer surface of the shell 2a.
  • a plurality of second pipe parts 23c are arranged in the axial direction of the shell 2a.
  • the first pipe part 23b is adjacent to the second pipe part 23c.
  • the first joint portion 23d connects one end of the first pipeline component 23b to one end of the second pipeline component 23c.
  • the second joint 23e connects the other end of the first pipe part 23b to the other end of the second pipe part 23c. Since the flow paths in the plurality of first pipe parts 23b and the flow paths in the plurality of second pipe parts 23c are connected to one through the first joint part 23d and the second joint part 23e, the A perforated line 23a is formed.
  • FIG. 8 is a view for explaining the structure of the joint portion between the first pipe part and the second pipe part.
  • the structure of the first joint portion 23d will be described as an example, but the same applies to the structure of the second joint portion 23e.
  • one end of the first pipeline component 23b is contracted.
  • One end of the first pipe part 23b is inserted into one end of the second pipe part 23c, and the first joint 23d is joined by brazing. Since the pipe line 23a is divided
  • the first joint part 23d is joined by inserting one end of the first pipe part 23b into one end of the second pipe part 23c, the first joint part 23d can be reliably joined.
  • the structure of the joint is not limited to the above. That is, any structure may be used as long as the ends of the first pipe part 23b and the second pipe part 23c are joined to each other.
  • the structure which expands the end of the 1st pipe line part 23b may be sufficient.
  • the structure which shrinks or expands the one end side of the 2nd pipe line part 23c may be sufficient.
  • FIG. 9 is a view for explaining a modification of the structure of the joint portion between the first pipe part and the second pipe part.
  • the ends of the first pipe part 23b and the second pipe part 23c may have a tapered shape.
  • the taper shape may be only one of the first pipe part 23b and the second pipe part 23c.
  • the pipe line 23a can be brought into close contact with the shell 2a using the holder 3 and can be fixed securely. Thereby, it becomes possible to maintain the heat exchange efficiency of the shell heat exchanger 23 high over a long period of time.
  • Embodiment 2 will be described with reference to FIGS.
  • the difference from the first embodiment will be mainly described, and the description of the same or corresponding parts will be simplified or omitted.
  • FIG. 10 is a plan view of the compressor 2 and the shell heat exchanger 23 provided in the heat pump device 1 of the second embodiment.
  • FIG. 10 is a diagram viewed from the axial direction of the shell 2 a of the compressor 2.
  • FIG. 11 is a view showing a part of a cross section of the compressor 2 and the shell heat exchanger 23 shown in FIG. 10 taken along the line BB in the figure.
  • a pipe line 23a is arranged on the outer surface of the shell 2a.
  • FIG. 12 is a view of a part of the pipe line 23a of the shell heat exchanger 23 according to the second embodiment as viewed from the side surface side. In FIG. 12, the holder 3 is omitted. As shown in FIGS.
  • the pipe line 23a includes a first pipe part 23f, a second pipe part 23g, a first joint part 23h, and a second joint part 23j.
  • the pipeline 23a is as follows when viewed from the axial direction of the shell 2a.
  • the first duct part 23f has an arc shape along the outer surface of the shell 2a. There is no restriction
  • the second pipe part 23g has an arc shape along the outer surface of the shell 2a. There is no restriction
  • the arc of the second pipe part 23g has a circumferential angle of 180 °.
  • the radius of curvature of the inner peripheral surface of the first pipe part 23f is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the curvature radius of the inner peripheral surface of the second pipe part 23g is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the pipeline 23a is as follows when viewed from the side of the shell 2a.
  • the first pipe part 23f includes a pipe 231f that travels in the direction perpendicular to the axial direction along the outer surface of the shell 2a, and a pipe 232f that travels while changing its position in the axial direction along the outer surface of the shell 2a. It has a continuous shape.
  • the pipe 231f and the pipe 232f may be configured as an integral pipe, or may be configured by connecting separate pipes.
  • a plurality of first pipeline parts 23f are arranged in the axial direction of the shell 2a.
  • the second pipe part 23g includes a pipe 231g that travels in a direction perpendicular to the axial direction along the outer surface of the shell 2a, and a pipe 232g that travels while changing its position in the axial direction along the outer surface of the shell 2a. It has a continuous shape.
  • the pipe 231g and the pipe 232g may be configured as an integral pipe, or may be configured by connecting separate pipes.
  • a plurality of second pipe parts 23g are arranged in the axial direction of the shell 2a.
  • the first pipeline component 23f is adjacent to the second pipeline component 23g.
  • the first joint portion 23h connects the end portion on the pipe 232f side of the first conduit component 23f to the end portion on the pipe 232g side of the second conduit component 23g.
  • the second joint 23j connects the end of the first pipe part 23f on the pipe 231f side to the end of the second pipe part 23g on the pipe 231g side.
  • the flow paths in the plurality of first pipe parts 23f and the flow paths in the plurality of second pipe parts 23g are connected to one through the first joint 23h and the second joint 23j.
  • a path 23a is formed.
  • the structure of the first joint 23h and the second joint 23j is the same as the structure of the first joint 23d in the first embodiment.
  • the pipe line 23 a is fixed by the holder 3. 10 and 11, the first holder part 3c and the second holder part 3d are shown.
  • the holder 3 has an arcuate joint surface along the outer periphery of the shell 2a when viewed from the axial direction of the shell 2a.
  • the radius of curvature when the joining surface of the holder 3 is viewed from the axial direction of the shell 2a is substantially equal to 1 ⁇ 2 of the diameter of the shell 2a.
  • the joint surface of the holder 3 has a shape along the pipe 231f and the pipe 231g that travels in a direction perpendicular to the axial direction of the pipe line 23a of the shell heat exchanger 23 when viewed from the side surface direction of the shell 2a.
  • the joint surface of the holder 3 is brazed to the shell 2a. Thereby, reliable heat conduction from the shell 2a to the holder 3 becomes possible.
  • the holder 3 is elastically deformed with the pipe line 23a interposed therebetween, thereby biasing the pipe line 23a toward the side pressing the outer surface of the shell 2a.
  • the pipe line 23a is closely fixed to the shell 2a, reliable heat conduction from the shell 2a to the pipe line 23a becomes possible.
  • the holder 3 is also in contact with the pipe line 23a, heat conduction transmitted from the shell 2a to the pipe line 23a via the holder is also possible. Thereby, the heat conduction from the shell 2a to the pipe line 23a is remarkably increased.
  • the holder 3 can comprise a joining surface by simple arc shape, a bending process becomes easy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

Cet appareil de pompe à chaleur est pourvu : d'un compresseur qui comprime un fluide frigorigène et qui est pourvu d'une coque cylindrique; un échangeur de chaleur à enveloppe qui est pourvu d'un pipeline enroulé sur la surface externe de la coque et qui transfère la chaleur du compresseur à un milieu thermique passant à travers le pipeline; et un élément de fixation qui est relié à la surface extérieure de la coque et qui se lie étroitement et fixe le pipeline à la surface extérieure de la coque. Le pipeline est configuré en étant enroulé sur la surface extérieure de la coque selon une forme hélicoïdale. L'élément de fixation est relié à une position le long du pipeline dans la surface extérieure de la coque, et relie de manière étanche la surface extérieure de la coque et le pipeline l'un à l'autre par pincement et fixation du pipeline.
PCT/JP2016/080350 2016-10-13 2016-10-13 Appareil de pompe à chaleur WO2018070009A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/080350 WO2018070009A1 (fr) 2016-10-13 2016-10-13 Appareil de pompe à chaleur
JP2018544635A JP6590078B2 (ja) 2016-10-13 2016-10-13 ヒートポンプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/080350 WO2018070009A1 (fr) 2016-10-13 2016-10-13 Appareil de pompe à chaleur

Publications (1)

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WO2018070009A1 true WO2018070009A1 (fr) 2018-04-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/080350 WO2018070009A1 (fr) 2016-10-13 2016-10-13 Appareil de pompe à chaleur

Country Status (2)

Country Link
JP (1) JP6590078B2 (fr)
WO (1) WO2018070009A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914948U (fr) * 1972-05-12 1974-02-07
JPS50141811U (fr) * 1974-05-10 1975-11-21
JPS5539475U (fr) * 1978-09-06 1980-03-13
JPS5874034U (ja) * 1981-11-13 1983-05-19 松下電器産業株式会社 冷媒加熱器
JPS61231394A (ja) * 1985-04-04 1986-10-15 Shimadzu Corp 熱交換器
JPS62138875U (fr) * 1986-02-27 1987-09-01
JP2004211981A (ja) * 2003-01-06 2004-07-29 Matsushita Electric Ind Co Ltd 熱交換器
JP2008256360A (ja) * 2008-07-31 2008-10-23 Mitsubishi Electric Corp ヒートポンプ式給湯機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914948U (fr) * 1972-05-12 1974-02-07
JPS50141811U (fr) * 1974-05-10 1975-11-21
JPS5539475U (fr) * 1978-09-06 1980-03-13
JPS5874034U (ja) * 1981-11-13 1983-05-19 松下電器産業株式会社 冷媒加熱器
JPS61231394A (ja) * 1985-04-04 1986-10-15 Shimadzu Corp 熱交換器
JPS62138875U (fr) * 1986-02-27 1987-09-01
JP2004211981A (ja) * 2003-01-06 2004-07-29 Matsushita Electric Ind Co Ltd 熱交換器
JP2008256360A (ja) * 2008-07-31 2008-10-23 Mitsubishi Electric Corp ヒートポンプ式給湯機

Also Published As

Publication number Publication date
JP6590078B2 (ja) 2019-10-16
JPWO2018070009A1 (ja) 2019-01-17

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