WO2015194020A1 - 冷凍サイクル装置および冷凍サイクルシステム - Google Patents
冷凍サイクル装置および冷凍サイクルシステム Download PDFInfo
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- WO2015194020A1 WO2015194020A1 PCT/JP2014/066355 JP2014066355W WO2015194020A1 WO 2015194020 A1 WO2015194020 A1 WO 2015194020A1 JP 2014066355 W JP2014066355 W JP 2014066355W WO 2015194020 A1 WO2015194020 A1 WO 2015194020A1
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- heat medium
- refrigeration cycle
- heat
- opening
- cycle apparatus
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- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/28—Refrigerant piping for connecting several separate outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/003—Indoor unit with water as a heat sink or heat source
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- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
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- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/06—Several compression cycles arranged in parallel
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- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to a refrigeration cycle apparatus that cools or heats a heat medium such as water or brine, and particularly relates to a refrigeration cycle apparatus in which a plurality of units are connected to constitute a refrigeration cycle system, and a refrigeration cycle system.
- the present invention has been made against the background described above, and is a refrigeration cycle apparatus in which a plurality of units are connected to constitute a refrigeration cycle system, and heating and cooling of a heat medium are simultaneously and flexibly performed.
- An object of the present invention is to provide a refrigeration cycle apparatus and a refrigeration cycle system that constitute a refrigeration cycle system capable of performing the above.
- the refrigeration cycle apparatus includes a compressor, a flow path switching device, a heat source side heat exchanger, an expansion device, a heat medium flow path through which a heat medium flows, and a refrigerant through which a refrigerant that exchanges heat with the heat medium flows.
- the refrigerant flow path of the heat medium heat exchanger having a flow path is connected to the refrigerant pipe and includes a refrigerant circuit in which the refrigerant circulates, and a plurality of units are connected to constitute a refrigeration cycle system.
- an opening / closing means set is installed in the heat medium inlet pipe and the heat medium outlet pipe on both sides of at least one heat exchanger.
- FIG. 1 It is a piping lineblock diagram showing an example of the refrigerating cycle device concerning Embodiment 1 of this invention.
- FIG. 1 It is a longitudinal cross-sectional schematic diagram which shows an example of the refrigeration cycle apparatus described in FIG. 1 is a piping configuration diagram illustrating an example of a refrigeration cycle system according to Embodiment 1.
- FIG. It is a schematic block diagram (longitudinal cross-sectional schematic diagram) which shows the state which connected the refrigerating-cycle apparatus of FIG. 1 is a schematic block diagram of a refrigeration cycle system according to Embodiment 1.
- FIG. 3 is a flowchart illustrating an example of the operation of the refrigeration cycle system according to Embodiment 1. It is a comparative example of FIG. It is the modification 1 of the refrigeration cycle apparatus described in FIG.
- FIG. 12 It is the modification 1 of the schematic block diagram of FIG. It is a longitudinal cross-sectional schematic diagram which shows an example of the refrigerating-cycle apparatus which concerns on Embodiment 2 of this invention. It is a schematic block diagram (vertical cross-sectional schematic diagram) which shows the state which connected and installed the refrigeration cycle apparatus shown in FIG. It is modification 1 of the refrigeration cycle apparatus described in FIG. It is the modification 2 of the refrigeration cycle apparatus described in FIG. 12 is a first modification of the schematic configuration diagram shown in FIG. 11. It is a schematic block diagram (vertical cross section schematic diagram) of the state which connected the refrigerating-cycle apparatus which concerns on Embodiment 3 of this invention.
- FIG. 1 is a piping configuration diagram showing an example of a refrigeration cycle apparatus according to Embodiment 1 of the present invention.
- the refrigeration cycle apparatus 100 includes a refrigerant circuit 10 and a heat medium circuit 60.
- the refrigerant circuit 10 includes a compressor 1, a heat source side heat exchanger 2, an expansion device 4 that is an expansion valve, a load side heat exchanger 5, and a flow path switching device 6 that is a four-way valve, for example. Connected by piping, the refrigerant circulates inside.
- the flow path switching device 6 switches the direction of the refrigerant flowing through the refrigerant circuit 10 between the heating operation and the cooling operation of the refrigeration cycle apparatus 100. For example, the flow path switching device 6 switches the refrigerant discharged from the compressor 1 to flow into the load-side heat exchanger 5 during the heating operation. Further, the flow path switching device 6 switches so that the refrigerant discharged from the compressor 1 flows into the heat source side heat exchanger 2 during the cooling operation.
- the heat source side heat exchanger 2 is, for example, an air heat exchanger (air-cooled heat exchanger) that performs heat exchange between refrigerant flowing through the heat source side heat exchanger 2 and air.
- a blower 3 that guides air to the heat source side heat exchanger 2 is installed in the vicinity of the heat source side heat exchanger 2.
- the load side heat exchanger 5 constitutes a heat medium heat exchanger 50 that performs heat exchange between the refrigerant flowing through the load side heat exchanger 5 and the heat medium flowing through the heat medium circuit 60.
- the heat medium heat exchanger 50 only needs to exchange heat between the refrigerant flowing through the load side heat exchanger 5 and the heat medium flowing through the heat medium circuit 60.
- the heat medium circuit 60 guides a heat medium such as water or brine into the heat medium heat exchanger 50, and the heat medium heated or cooled by the heat medium heat exchanger 50 (in other words, the heat medium that has cooled or heated the refrigerant). ) To the downstream side (other refrigeration cycle devices, cooling load, heating load, etc.).
- the heat medium circuit 60 includes a heat medium heat exchanger 50, a heat medium inlet pipe 60a, a heat medium outlet pipe 60b, a first opening / closing part 61a, and a second opening / closing part 61b.
- the heat medium inlet pipe 60a is connected to the heat medium inlet 5a of the heat medium heat exchanger 50 in the middle, and the heat medium flowing from the upstream side (other refrigeration cycle apparatus, cooling load, heating load, etc.) Is introduced into the heat medium heat exchanger 50 (see FIG. 2 described later).
- the heat medium outlet pipe 60b is connected to the heat medium outlet 5b of the heat medium heat exchanger 50 in the middle, and the heat medium cooled by the heat medium heat exchanger 50 (in other words, the heat medium that has heated the refrigerant). ) To the downstream side (other refrigeration cycle apparatus, cooling load, heating load, etc.) (see FIG. 2 described later).
- the first opening / closing part 61a is, for example, an electromagnetic valve, and is installed in the heat medium inlet pipe 60a on one side of the heat medium inlet 5a of the heat medium heat exchanger 50.
- the 2nd opening-and-closing part 61b is a solenoid valve, for example, and is installed in the heat-medium exit piping 60b on one side of the heat-medium outlet 5b.
- the first opening / closing portion 61a and the second opening / closing portion 61b are collectively referred to as an opening / closing portion set 61 in order to facilitate understanding of the present invention.
- the opening / closing part set corresponds to the opening / closing means set described in the claims.
- FIG. 2 is a schematic longitudinal sectional view showing an example of the refrigeration cycle apparatus shown in FIG. In FIG. 2, illustration of some components such as the compressor 1, the blower 3, the expansion device 4, and the flow path switching device 6 is omitted for easy understanding of the invention.
- the refrigeration cycle apparatus 100 includes a casing 7 such as a hexahedron. And each structure of the refrigerant circuit 10 and each structure of the heat medium circuit 60 are casings except for one end part (the right end part in FIG. 2) of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b serving as connection ports. 7 is arranged.
- One end portions of the heat medium inlet pipe 60 a and the heat medium outlet pipe 60 b serving as connection ports are spaced from the left end face of the casing 7 and are located inside the casing 7.
- the left end portions of the heat medium inlet pipe 60 a and the heat medium outlet pipe 60 b are located in the casing 7 with a distance of 100 to 200 mm from the left end face of the casing 7.
- connection ports protrude from the right end surface of the casing 7.
- the other ends of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b serving as connection ports protrude from the right end face of the casing 7 by about 100 to 200 mm.
- the opening / closing part set 61 is installed on the protruding side of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b from the heat medium inlet 5a and the heat medium outlet 5b.
- the opening / closing part set 61 may be installed on the end side located inside the casing 7 of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b rather than the heat medium inlet 5a and the heat medium outlet 5b. .
- the heat source side heat exchanger 2 which is an air heat exchanger (air-cooled heat exchanger) is installed in the upper part of the casing 7. Further, the compressor 1, the expansion device 4, the load side heat exchanger 5, the heat medium inlet pipe 60 a, the heat medium outlet pipe 60 b, and the opening / closing part set 61 are installed in the casing 7 below the heat source side heat exchanger 2. Has been.
- the casing 7 is formed with an inlet and an outlet (not shown) for introducing air to the heat source side heat exchanger 2. More specifically, the suction port and the air outlet are formed on the side surface on the side where the ends of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b are not provided in the vicinity.
- the suction port is formed on the side surface on the front side of the paper surface or the side surface on the back side of the paper surface.
- a blower outlet is formed in the side surface or the upper surface of the casing 7 which opposes the side surface in which the suction inlet was formed.
- the suction port is formed on the upper surface of the casing 7.
- the air outlet is formed on the front side or the back side.
- each of the refrigeration cycle apparatuses 100 has a side surface in the vicinity of one end of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b and a part in the vicinity of the other end.
- the side surfaces are installed so as to face each other (hereinafter, the opposite side surfaces may be referred to as opposite side surfaces). That is, in the refrigeration cycle apparatus 100 according to this embodiment, the inlet and the outlet are formed on a surface other than the opposite side surface of the casing 7.
- the heat source side heat exchanger 2 may be installed in the lower part in the casing 7.
- the compressor 1, the expansion device 4, the load side heat exchanger 5, the heat medium inlet pipe 60 a, the heat medium outlet pipe 60 b, and the opening / closing part set 61 are installed in the casing 7 above the heat source side heat exchanger 2. May be.
- the suction port or the air outlet is formed on the upper surface of the casing 7, one of the side surfaces other than the opposite side surface is a side surface on which neither the air inlet nor the air outlet is formed.
- the heat source side heat exchanger 2, the compressor 1, the expansion device 4, the load side heat exchanger 5, the heat medium inlet pipe 60 a, and the heat medium outlet are formed on the side surface where neither the suction port nor the outlet is formed. You may arrange
- FIG. 3 is a piping configuration diagram illustrating an example of the refrigeration cycle system according to the first embodiment.
- FIG. 4 is a schematic configuration diagram (vertical cross-sectional schematic diagram) showing a state where the refrigeration cycle apparatus 100 shown in FIG. 2 is connected.
- a refrigeration cycle system 300 is configured by connecting a plurality of refrigeration cycle apparatuses 100, and is incorporated into, for example, an air conditioner.
- FIG. 4 an example of a refrigeration cycle system 300 configured by connecting three refrigeration cycle apparatuses 100 will be described.
- the white arrow shown in FIG. 4 has shown the flow direction of the heat medium.
- the refrigeration cycle apparatus 100 is referred to as a first refrigeration cycle apparatus 100A, a second refrigeration cycle apparatus 100B, and a third refrigeration cycle apparatus 100C in order from the right side in FIG.
- the opening / closing part set 61 is referred to as a first opening / closing part set 61A, a second opening / closing part set 61B, a third opening / closing part set 61C, and a fourth opening / closing part set 61D in order from the right side.
- the refrigeration cycle system 300 is configured by connecting the heat medium inlet pipe 60a and the heat medium outlet pipe 60b of the first refrigeration cycle apparatus 100A to the third refrigeration cycle apparatus 100C.
- a heat medium inlet channel 60A is formed
- a heat medium outlet channel 60B is formed.
- a first load 70 is connected to the right end of the outlet pipe 60b.
- a second load 80 is connected to the left end of the outlet pipe 60b.
- the second load 80 is connected to the heat medium inlet channel 60A and the heat medium outlet channel 60B via the fourth opening / closing part set 61D.
- the fourth opening / closing part set 61D may be installed in the heat medium inlet pipe 60a and the heat medium outlet pipe 60b.
- Each of the first load 70 and the second load 80 is provided with, for example, a heat medium delivery device (not shown) configured by a pump or the like, and the heat medium is generated by driving the heat medium delivery device. It flows in the heat medium inlet channel 60A and the heat medium outlet channel 60B.
- the refrigeration cycle apparatus 100 when the refrigeration cycle apparatus 100 is connected and installed, the refrigeration cycle apparatus 100 includes a side surface (right side surface in FIG. 4) in the vicinity of one end of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b. It is installed so that the side surface (left side surface in FIG. 4) in the vicinity of the other end portion faces. And as for the heat-medium inlet piping 60a and the heat-medium outlet piping 60b, one edge part (right side edge part in FIG. 4) and the other edge part (left side edge part in FIG. 4) are connected within the casing 7. . At this time, one end (the right end in FIG.
- connection method of an edge part is not specifically limited, For example, what is necessary is just to connect by a well-known method, such as the connection using a pipe joint.
- FIG. 5 is a schematic block diagram of the refrigeration cycle system according to the first embodiment.
- the refrigeration cycle system 300 includes a control unit 15 that includes a CPU or a signal processing circuit that performs a specific process.
- the control unit 15 controls the compressor 1, the flow path switching device 6, the opening / closing unit set 61, and the like based on inputs from the input unit 16, the temperature detection unit 17, the compressor operating frequency detection unit 18, and the like. It is.
- the control unit 15 is installed in any one of the first refrigeration cycle apparatus 100A to the third refrigeration cycle apparatus 100C, for example.
- FIG. 6 is a flowchart illustrating an example of the operation of the refrigeration cycle system according to the first embodiment.
- step S101 the user sets or changes the operation mode of the refrigeration cycle system 300 using, for example, the input unit 16 shown in FIG. For example, in this embodiment, the user can select the first operation mode to the third operation mode.
- step S101 When the first operation mode is selected in step S101, the process proceeds in the order of step S102 and step S103.
- step S103 the control unit 15 shown in FIG. 5 performs each cooling operation shown in FIG. 3 so that all of the first refrigeration cycle apparatuses 100A to 100C shown in FIGS. 3 and 4 perform the cooling operation. Control for switching the flow path switching device 6 is performed.
- step S104 shown in FIG. 6 the controller 15 opens the first opening / closing part set 61A, the second opening / closing part set 61B, and the third opening / closing part set 61C, and closes the fourth opening / closing part set 61D. Control.
- the first operation mode all of the first refrigeration cycle apparatus 100A to the third refrigeration cycle apparatus 100C perform the cooling operation, and the first load 70 communicates with these apparatuses.
- the first opening / closing part set 61A, the second opening / closing part set 61B, and the third opening / closing part set 61C are opened, and the fourth opening / closing part set 61D is closed. Therefore, in the first operation mode, the heat medium cooled by all of the first refrigeration cycle apparatuses 100A to 100C circulates in the first load 70. In the first operation mode, since the fourth opening / closing part set 61D is closed, the heat medium does not circulate on the second load 80 side.
- step S101 the process proceeds in the order of step S102, step S105, and step S106.
- step S106 the control unit 15 causes each flow path switching device so that the first refrigeration cycle apparatus 100A and the second refrigeration cycle apparatus 100B perform the cooling operation, and the third refrigeration cycle apparatus 100C performs the heating operation. 6 is controlled.
- step S107 the control unit 15 opens the first opening / closing part set 61A and the second opening / closing part set 61B, closes the third opening / closing part set 61C, and opens the fourth opening / closing part set 61D.
- the control is performed.
- the first refrigeration cycle apparatus 100A and the second refrigeration cycle apparatus 100B perform the cooling operation, and the first load 70 is communicated with these apparatuses.
- the first opening / closing part set 61A and the second opening / closing part set 61B are opened, and the third opening / closing part set 61C is closed.
- the fourth open / close section set 61D is opened so that the third refrigeration cycle apparatus 100C performs the heating operation and the second load 80 communicates with the third refrigeration cycle apparatus 100C.
- the third opening / closing part set 61C is closed. Therefore, in the second operation mode, the heat medium cooled by the first refrigeration cycle apparatus 100A and the second refrigeration cycle apparatus 100B circulates in the first load 70, and the second load 80 by the third refrigeration cycle apparatus 100C. The heated heat medium circulates.
- step S101 the process proceeds in the order of step S102, step S105, step S108, and step S109.
- step S109 the control unit 15 performs control to switch each flow path switching device 6 so that all of the first refrigeration cycle devices 100A to 100C perform the heating operation.
- control unit 15 performs control such that the second opening / closing unit set 61B, the third opening / closing unit set 61C, and the fourth opening / closing unit set 61D are opened, and the first opening / closing unit set 61A is closed. Do.
- the third operation mode all of the first refrigeration cycle apparatus 100A to the third refrigeration cycle apparatus 100C perform the heating operation, and the second load 80 communicates with these apparatuses.
- the second opening / closing part set 61B, the third opening / closing part set 61C and the fourth opening / closing part set 61D are opened, and the first opening / closing part set 61A is closed. Therefore, in the third operation mode, the heat medium heated by all of the first refrigeration cycle apparatuses 100A to 100C circulates in the second load 80.
- the first opening / closing part set 61A since the first opening / closing part set 61A is closed, the heat medium does not circulate on the first load 70 side.
- a fourth operation mode can be added.
- the first refrigeration cycle apparatus 100A performs the cooling operation
- the first opening / closing part set 61A is opened
- the second opening / closing part set is set so that the first load 70 communicates with the first refrigeration cycle apparatus 100A.
- 61B is closed.
- the third opening / closing part set 61C and the fourth opening / closing part are operated so that the second refrigeration cycle apparatus 100B and the third refrigeration cycle apparatus 100C perform the heating operation, and the second load 80 communicates therewith.
- the set 61D is opened, and the second opening / closing part set 61B is closed. Accordingly, in the fourth operation mode, the heat medium cooled by the first refrigeration cycle apparatus 100A circulates in the first load 70, and the second refrigeration cycle apparatus 100B and the third refrigeration cycle apparatus 100C pass through the second load 80.
- the heated heat medium circulates.
- the flow path through which the heat medium flows can be changed by switching the open / close section sets 61A to 61D. . Then, by switching the cooling / heating operation of each refrigeration cycle apparatus 100, heating and cooling of the heat medium can be performed simultaneously and flexibly.
- the refrigeration cycle system 300 can be configured by connecting common refrigeration cycle apparatuses 100. Further, in the refrigeration cycle apparatus 100 according to this embodiment, since one end of the heat medium inlet pipe 60a and the heat medium outlet pipe 60b protrudes from the casing 7, a plurality of refrigeration cycle apparatuses 100 are connected and installed. In this case, these positioning can be easily performed. Furthermore, since the direction of the refrigeration cycle apparatus 100 can be visually confirmed, the refrigeration cycle system 300 can be easily configured by matching the connection direction of the refrigeration cycle apparatus 100.
- FIG. 7 is a comparative example of FIG.
- the connection port of the heat medium heat exchanger of the refrigeration cycle apparatus 1000 protrudes outside the casing (that is, the connection between the connection port and the heat medium pipe is Outside the casing). Therefore, since the heat medium pipe 1002 connecting each refrigeration cycle apparatus 1000 is installed outside the refrigeration cycle apparatus 1000, there is a problem that the refrigeration cycle system 3000 is increased in size. Furthermore, since the refrigeration cycle apparatus 1000 has the heat medium pipes 1002 connecting the refrigeration cycle apparatuses 1000 installed outside the refrigeration cycle apparatus 1000, the number of man-hours for connecting the heat medium pipes 1002 at the installation site is as follows. There is a problem that it is not reduced so much, and there is still a demand for saving construction.
- FIG. 8 shows a first modification of the refrigeration cycle apparatus shown in FIG.
- FIG. 9 is a first modification of the schematic configuration diagram shown in FIG.
- the third refrigeration cycle apparatus 100C illustrated in FIG. 4 can be replaced with the refrigeration cycle apparatus 101 illustrated in FIG. 8 to obtain a refrigeration cycle system 301 (see FIG. 9) similar to the refrigeration cycle system 300.
- an opening / closing section set 61 is installed in the heat medium inlet pipe 60a and the heat medium outlet pipe 60b on both sides of the heat medium inlet 5a and the heat medium outlet 5b.
- the first load 70 and the second load 80 can be directly connected to both sides of the heat medium inlet channel 60A and the heat medium outlet channel 60B.
- the refrigeration cycle system 300 configured by connecting and installing the three refrigeration cycle apparatuses 100 has been described.
- a refrigeration cycle system capable of performing heating and cooling flexibly is obtained. That is, on both sides of the heat exchanger, switching between the opening / closing unit sets installed in the heat medium inlet pipe and the heat medium outlet pipe, switching the flow path through which the heat medium flows, and switching the cooling / heating operation of the refrigeration cycle apparatus 100
- heating and cooling of the heat medium can be performed flexibly.
- Embodiment 2 FIG. In the first embodiment, only one end of the heat medium inlet pipe 60 a and the heat medium outlet pipe 60 b is arranged in the casing 7. In the second embodiment, as compared with the first embodiment, both ends of the heat medium inlet first piping part and the heat medium outlet first piping part are separated from the end face of the casing and are located inside the casing. An example will be described. Note that in Embodiment 2, items that are not particularly described are the same as those in Embodiment 1, and the same functions or configurations are described using the same reference numerals.
- FIG. 10 is a schematic longitudinal sectional view showing an example of a refrigeration cycle apparatus according to Embodiment 2 of the present invention.
- both ends of the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1 serving as connection ports are connected to the casing 7. It is separated from the end surface of the casing 7 and is located inside the casing 7.
- both ends of the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1 are located in the casing 7 with a distance of 100 to 200 mm from the end surface of the casing 7.
- FIG. 11 is a schematic configuration diagram (vertical cross-sectional schematic diagram) showing a state where the refrigeration cycle apparatus shown in FIG. 10 is connected and installed.
- both end portions of the heat medium inlet first piping portion 60a1 and the heat medium outlet first piping portion 60b1 serving as connection ports are end surfaces of the casing 7. From 100 to 200 mm away from the casing 7. For this reason, when the refrigeration cycle apparatus 102 according to this embodiment is connected and installed, the adjacent refrigeration cycle apparatuses 102 have the end portions of the heat medium inlet first piping part 60a1 through the heat medium inlet second piping part 200a. Connected.
- the adjacent refrigeration cycle apparatuses 102 are arranged such that the ends of the heat medium outlet first piping part 60b1 pass through the heat medium outlet second piping part 200b. Connected. And the 1st opening-and-closing part 61a is installed in the heat medium entrance 2nd piping part 200a, and the 2nd opening-and-closing part 61b is installed in the heat medium exit 2nd piping part 200b.
- the short second pipe portions 200a and 200b (in this embodiment, for example, 200 to 400 mm). Only in the refrigeration cycle apparatus 102, the end portions of the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1 can be connected in the casing 7. At this time, in one of the adjacent refrigeration cycle apparatuses 102, the end of the heat medium inlet second pipe part 200a on the side not connected to the heat medium inlet first pipe part 60a1 and the heat of the heat medium outlet second pipe part 200b. The end portion on the side not connected to the medium outlet first piping portion 60 b 1 protrudes from the end surface of the casing 7.
- connection work of the heat medium pipe can be saved at the installation site of the refrigeration cycle apparatus 102. Further, since the heat medium inlet first piping part 60a1, the heat medium outlet first piping part 60b1 and the second piping parts 200a, 200b can be arranged in the casing 7 of the refrigeration cycle apparatus 102, the installation space (more specifically, Piping space) can be saved.
- the end portions of the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1 do not protrude from the casing 7, so the refrigeration cycle apparatus 102 is installed.
- the effect of being easy to do can also be obtained.
- the refrigeration cycle apparatus 102 includes a heat medium inlet second piping part 200a in which the first opening / closing part 61a is installed, and a heat medium outlet second piping part 200b in which the second opening / closing part 61b is installed.
- the refrigeration cycle system 302 (see FIG. 11) similar to the refrigeration cycle system 300 according to Embodiment 1 described above can be obtained simply by connecting a plurality of units.
- FIG. 12 shows a first modification of the refrigeration cycle apparatus shown in FIG.
- FIG. 13 shows a second modification of the refrigeration cycle apparatus shown in FIG.
- FIG. 14 is a first modification of the schematic configuration diagram shown in FIG.
- the refrigeration cycle apparatus 102 shown in FIG. 11 is replaced with the refrigeration cycle apparatus 103 shown in FIG. 12 or the refrigeration cycle apparatus 103 shown in FIG. Can be obtained (see FIG. 14).
- the refrigeration cycle apparatus 103 has an opening / closing section set on one side of the heat medium inlet 5a and the heat medium outlet 5b, on the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1. 61 is installed. Further, as shown in FIG.
- the refrigeration cycle apparatus 103 opens and closes the heat medium inlet first piping part 60a1 and the heat medium outlet first piping part 60b1 on both sides of the heat medium inlet 5a and the heat medium outlet 5b.
- a set 61 is installed.
- these refrigeration cycle apparatuses When these refrigeration cycle apparatuses are connected, as shown in FIG. 14, they may be connected via the second piping parts 200a1 and 200b1 in which the first opening / closing part 61a and the second opening / closing part 61b are not installed. .
- the refrigeration cycle apparatus 100 according to the first embodiment only the refrigeration cycle apparatus 100 according to the first embodiment is connected and installed, and in the second embodiment, only the refrigeration cycle apparatus 102 according to the second embodiment is connected and installed.
- the refrigeration cycle apparatus 100 according to Embodiment 1 and the refrigeration cycle apparatus 102 according to Embodiment 2 may be combined and installed.
- Embodiment 3 In the first embodiment and the second embodiment, an example of a refrigeration cycle system configured by connecting three refrigeration cycle apparatuses has been described. In the third embodiment, four refrigeration cycle apparatuses are connected and configured. The refrigeration cycle system will be described. In this embodiment, items that are not particularly described are the same as those in Embodiment 1 or Embodiment 2, and the same functions or configurations are described using the same reference numerals.
- FIG. 15 is a schematic block diagram (vertical cross-section schematic diagram) of the state which connected the refrigerating-cycle apparatus based on Embodiment 3 of this invention. .
- the first load 70 is a cooling load and the second load 80 is a heating load will be described.
- the first load 70 is a heating load and the second load 80 is a cooling load. May be.
- the refrigeration cycle apparatus 100 is referred to as a first refrigeration cycle apparatus 100A, a second refrigeration cycle apparatus 100B, a third refrigeration cycle apparatus 100C, and a fourth refrigeration cycle apparatus 100D in order from the right side in FIG.
- the opening / closing part set 61 is referred to as a first opening / closing part set 61A, a second opening / closing part set 61B, a third opening / closing part set 61C, a fourth opening / closing part set 61D, and a fifth opening / closing part set 61E in order from the right side.
- the temperature detection unit 17 is installed in the first refrigeration cycle apparatus 100A and the fourth refrigeration cycle apparatus 100D installed at the extreme ends.
- the temperature detector 17 is installed between the heat medium inlet 5a and the opening / closing part set 61 on the first load 70 or second load 80 side of the heat medium inlet 5a.
- the temperature detector 17 detects the temperature of the heat medium flowing through the heat medium inlet channel 60A. Information on the temperature of the heat medium detected by the temperature detection unit 17 is input to the control unit 15 shown in FIG.
- FIG. 16 is a flowchart illustrating an example of the operation of the refrigeration cycle system according to Embodiment 3 of the present invention.
- the control unit 15 illustrated in FIG. 5 determines whether or not the temperature t1 of the heat medium is between the first lower limit rated temperature T1 and the first upper limit rated temperature T2.
- the first lower limit rated temperature T1 is, for example, 6 ° C.
- the first upper limit rated temperature T2 is, for example, 8 ° C.
- the control unit 15 determines the first refrigeration cycle apparatus 100A ⁇
- the operation of the fourth refrigeration cycle apparatus 100D is changed. After changing the operation of the first refrigeration cycle apparatus 100A to the fourth refrigeration cycle apparatus 100D in step S202, in step S203, the control unit 15 switches the first opening / closing part set 61A to the fifth opening / closing part set 61E.
- step S201 when the temperature t1 of the heat medium is between the first lower limit rated temperature T1 and the first upper limit rated temperature T2, the process proceeds to step S204, where the heat medium temperature t1 is the second lower limit rated temperature T3. And the second upper limit rated temperature T4.
- the second lower limit rated temperature T3 is, for example, 44 ° C.
- the first upper limit rated temperature T2 is, for example, 46 ° C.
- step S205 if the temperature t2 of the heat medium is not between the second lower limit rated temperature T3 and the second upper limit rated temperature T4, in step S205, the control unit 15 causes the first refrigeration cycle apparatus 100A to 100A to 100A.
- the operation of the fourth refrigeration cycle apparatus 100D is changed. After changing the operation of the first refrigeration cycle apparatus 100A to the fourth refrigeration cycle apparatus 100D in step S205, in step S206, the control unit 15 switches the first opening / closing part set 61A to the fifth opening / closing part set 61E.
- FIG. 17 is a table illustrating operation modes of the refrigeration cycle system according to Embodiment 3 of the present invention.
- the refrigeration cycle system 304 is operating in the first operation mode, for example.
- the first refrigeration cycle apparatus 100A performs a cooling operation
- the fourth refrigeration cycle apparatus 100D performs a heating operation.
- the first opening / closing part set 61A is opened
- the second opening / closing part set 61B to the fourth opening / closing part set 61D are closed
- the fifth opening / closing part set 61E is opened.
- the refrigerant cooled by the first refrigeration cycle apparatus 100A circulates in the first load 70
- the refrigerant heated by the fourth refrigeration cycle apparatus 100D circulates in the second load 80.
- the third refrigeration cycle apparatus 100C including the heat medium heat exchanger 50 located between the third opening / closing part set 61C and the closed fourth opening / closing part set 61D has stopped operation.
- the control unit 15 switches from the first operation mode shown in FIG. 17 to the second operation mode. That is, in step S202, the cooling operation of the second refrigeration cycle apparatus 100B is started. In step S203, the second opening / closing part set is opened. In this way, when the cooling load of the first load 70 increases, the refrigeration cycle apparatus is additionally activated.
- the control unit 15 may additionally activate the second refrigeration cycle apparatus 100B and the third refrigeration cycle apparatus 100C. Good. Further, the control unit 15 may additionally activate the second refrigeration cycle apparatus 100B, the third refrigeration cycle apparatus 100C, and the fourth refrigeration cycle apparatus 100D.
- the control unit 15 switches from the first operation mode shown in FIG. 17 to the third operation mode. That is, in step S202, the cooling operation of the second refrigeration cycle apparatus 100B is stopped. In step S203, the first opening / closing section set is closed. In this way, when the cooling load of the first load 70 becomes small, the number of driven refrigeration cycle apparatuses is reduced.
- step S204 When the refrigeration cycle system 304 is operating in the first operation mode, if the temperature t2 of the heat medium becomes lower than the second lower limit rated temperature T3 in step S204 shown in FIG. It is considered that the heating load of the load 80 is large. Therefore, for example, the control unit 15 switches from the first operation mode illustrated in FIG. 17 to the sixth operation mode. That is, in step S205, the heating operation of the third refrigeration cycle apparatus 100C is started. In step S206, the fourth opening / closing part set is opened. In this way, when the heating load of the second load 80 increases, the refrigeration cycle apparatus is additionally activated.
- step S204 when the refrigeration cycle system 304 is operating in the first operation mode, when the temperature t2 of the heat medium becomes higher than the second upper limit rated temperature T4 in step S204 shown in FIG. It is considered that the heating load of the second load 80 is small (the refrigeration cycle system 304 is heating excessively). Therefore, for example, the control unit 15 switches from the first operation mode illustrated in FIG. 17 to the fifth operation mode. That is, in step S202, the heating operation of the fourth refrigeration cycle apparatus 100D is stopped. In step S203, the fifth opening / closing section set is closed. Thus, when the heating load of the 1st load 70 becomes small, the drive number of refrigeration cycle devices is reduced.
- the operation mode is automatically switched to one of the first operation mode to the seventh operation mode based on the temperature of the heat medium flowing through the heat medium inlet channel 60A.
- the heating medium can be heated and cooled simultaneously and flexibly.
- energy saving is achieved because the operation mode is automatically switched to any one of the first operation mode to the seventh operation mode based on the temperature of the heat medium flowing through the heat medium inlet channel 60A. Yes.
- Embodiment 4 FIG.
- the example of switching the operation mode of the refrigeration cycle system based on the temperature of the heat medium flowing through the heat medium inlet channel has been described.
- the operation frequency of the compressor is set. Based on this, the operation mode of the refrigeration cycle system is switched.
- items not particularly described are the same as those in the third embodiment, and the same functions or configurations are described using the same reference numerals.
- FIG. 18 is a flowchart illustrating an example of the operation of the refrigeration cycle system according to Embodiment 4 of the present invention.
- the control unit 15 illustrated in FIG. 5 determines whether or not the operating frequency f1 of the compressor 1 is between the first lower limit frequency F1 and the first upper limit frequency F2. For example, when the operating frequency f1 is equal to or lower than the first lower limit frequency F1, the cooling load is small, and when the operating frequency f1 is equal to or higher than the first upper limit frequency F2, the cooling load is large.
- the operating frequency f1 of the compressor 1 is the total of the operating frequencies of a plurality of or one compressor 1 being operated.
- the operating frequency f1 of the compressor 1 may be the operating frequency of each compressor 1 being operated.
- step S302 If the operation frequency f1 of the compressor 1 is not between the first lower limit frequency F1 and the first upper limit frequency F2 in step S301, the control unit 15 in step S302, the first refrigeration cycle apparatus 100A ⁇ The operation of the fourth refrigeration cycle apparatus 100D is changed. After the operation of the first refrigeration cycle apparatus 100A to the fourth refrigeration cycle apparatus 100D is changed in step S302, in step S303, the control unit 15 switches the first opening / closing part set 61A to the fifth opening / closing part set 61E.
- step S301 when the operation frequency f1 of the compressor 1 is between the first lower limit frequency F1 and the first upper limit frequency F2, the process proceeds to step S304, where the operation frequency f2 of the compressor 1 is the second lower limit frequency F2. It is determined whether it is between F3 and the second upper limit frequency F4. For example, when the operation frequency f2 is the second lower limit frequency F3 or less, the heating load is small, and when the operation frequency f2 is the second upper limit frequency F4 or more, the heating load is large.
- the operating frequency f2 of the compressor 1 is the total of the operating frequencies of a plurality of or one compressor 1 being operated.
- the operating frequency f2 of the compressor 1 may be the operating frequency of each compressor 1 being operated.
- step S304 when the operating frequency f2 of the compressor 1 is not between the second lower limit frequency F3 and the second upper limit frequency F4, in step S305, the control unit 15 causes the first refrigeration cycle apparatuses 100A to 100A to 100A.
- the operation of the fourth refrigeration cycle apparatus 100D is changed.
- step S306 the control unit 15 switches the first opening / closing part set 61A to the fifth opening / closing part set 61E.
- the operation mode is automatically switched to any one of the first operation mode to the seventh operation mode shown in FIG.
- the heating medium can be heated and cooled simultaneously and flexibly.
- energy saving is achieved because the operation mode is automatically switched to any one of the first operation mode to the seventh operation mode based on the operating frequency of the compressor 1.
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Abstract
Description
しかしながら、特許文献1等に記載の従来の冷凍サイクル装置では、熱媒体の加熱および冷却を同時に行うことができない構成であったため、このようなニーズに対応することは困難である。
図1は、この発明の実施の形態1に係る冷凍サイクル装置の一例を示す配管構成図である。図1に示すように、この実施の形態に係る冷凍サイクル装置100は、冷媒回路10および熱媒体回路60を備えている。
例えば、図2に示した冷凍サイクル装置100の場合、吸込口は、紙面表側の側面または紙面裏側の側面に形成される。この場合、吹出口は、吸込口が形成された側面と対向する側面またはケーシング7の上面に形成される。
また例えば、図2に示した冷凍サイクル装置100の場合、吸込口は、ケーシング7の上面に形成される。この場合、吹出口は、紙面表側の側面または裏側の側面に形成される。
後述のように、複数の冷凍サイクル装置100を連結設置する際、各冷凍サイクル装置100は、熱媒体入口配管60aおよび熱媒体出口配管60bの一方の端部近傍の側面と他方の端部近傍の側面とが対向するように設置される(以下、対向する側面を対向側側面と称する場合もある)。
つまり、この実施の形態に係る冷凍サイクル装置100においては、吸込口および吹出口は、ケーシング7における対向側側面以外の面に形成されている。このような位置に吸込口および吹出口を形成することにより、吸込口および吹出口が塞がれることなく、複数の冷凍サイクル装置100を連結設置することができる。
また、以下の説明では、冷凍サイクル装置100について、図4において、右側から順に、第1冷凍サイクル装置100A、第2冷凍サイクル装置100B、第3冷凍サイクル装置100Cと称する。また、開閉部セット61について、図4において、右側から順に、第1開閉部セット61A、第2開閉部セット61B、第3開閉部セット61C、第4開閉部セット61Dと称する。
このとき、熱媒体入口配管60aおよび熱媒体出口配管60bの一方の端部(図4における右側端部)はケーシング7から突出して配置されているので、ケーシング7内に配置された他方の端部(図4における左側端部)と直接接続することができる。なお、端部の接続方法は特に限定されるものではなく、例えば管継手を用いた接続等、公知の方法で接続すればよい。
ステップS101にて、ユーザは、例えば、図5に示す入力部16を利用して、冷凍サイクルシステム300の運転モードを設定または変更する。例えば、この実施の形態では、ユーザは、第1運転モード~第3運転モードを選択することができる。
図8は、図2に記載の冷凍サイクル装置の変形例1である。図9は、図4に記載の概略構成図の変形例1である。
例えば、図4に記載の第3冷凍サイクル装置100Cを、図8に示す冷凍サイクル装置101に置き換えて、冷凍サイクルシステム300と同様の冷凍サイクルシステム301(図9を参照)を得ることができる。冷凍サイクル装置101は、図8に示すように、熱媒体流入口5aおよび熱媒体流出口5bの両側で、熱媒体入口配管60aおよび熱媒体出口配管60bに開閉部セット61が設置されている。図9に示す冷凍サイクルシステム301では、第1負荷70および第2負荷80を、熱媒体入口流路60Aおよび熱媒体出口流路60Bの両側に直接的に連結することができる。
実施の形態1においては、熱媒体入口配管60aおよび熱媒体出口配管60bは、一方の端部のみがケーシング7内に配置されていた。実施の形態2では、実施の形態1と比較して、熱媒体入口第1配管部および熱媒体出口第1配管部の双方の端部が、ケーシングの端面から離間して、ケーシングの内部に位置した例について説明する。なお、実施の形態2において、特に記述しない項目については実施の形態1と同様とし、同一の機能または構成については同一の符号を用いて述べることとする。
図10に示すように、この実施の形態に係る冷凍サイクル装置102においては、接続口となる熱媒体入口第1配管部60a1および熱媒体出口第1配管部60b1の双方の端部が、ケーシング7の端面から離間して、ケーシング7の内部に位置している。例えば、熱媒体入口第1配管部60a1および熱媒体出口第1配管部60b1の双方の端部は、ケーシング7の端面から、100~200mm離間して、ケーシング7の内部に位置している。
上述のように、この実施の形態に係る冷凍サイクル装置102においては、接続口となる熱媒体入口第1配管部60a1および熱媒体出口第1配管部60b1の双方の端部が、ケーシング7の端面から、100~200mm離間して、ケーシング7の内部に位置している。
このため、この実施の形態に係る冷凍サイクル装置102を連結設置する際、隣接する冷凍サイクル装置102は、熱媒体入口第1配管部60a1の端部同士が熱媒体入口第2配管部200aを介して接続されている。
同様に、この実施の形態に係る冷凍サイクル装置102を連結設置する際、隣接する冷凍サイクル装置102は、熱媒体出口第1配管部60b1の端部同士が熱媒体出口第2配管部200bを介して接続されている。
そして、熱媒体入口第2配管部200aに、第1開閉部61aが設置され、熱媒体出口第2配管部200bに、第2開閉部61bが設置されている。
図12は、図10に記載の冷凍サイクル装置の変形例1である。図13は、図10に記載の冷凍サイクル装置の変形例2である。図14は、図11に記載の概略構成図の変形例1である。
例えば、図11に示す冷凍サイクル装置102を、図12に記載の冷凍サイクル装置103または図13に記載の冷凍サイクル装置103に置き換えて、図11に示す冷凍サイクルシステム302と同様の冷凍サイクルシステム303を得ることができる(図14を参照)。冷凍サイクル装置103は、図12に示すように、熱媒体流入口5aおよび熱媒体流出口5bの片側で、熱媒体入口第1配管部60a1および熱媒体出口第1配管部60b1に、開閉部セット61が設置されている。また、冷凍サイクル装置103は、図13に示すように、熱媒体流入口5aおよび熱媒体流出口5bの両側で、熱媒体入口第1配管部60a1および熱媒体出口第1配管部60b1に、開閉部セット61が設置されている。これらの冷凍サイクル装置を接続する際には、図14に示すように、第1開閉部61aおよび第2開閉部61bが設置されていない、第2配管部200a1,200b1を介して接続すればよい。
この場合、ケーシング7から突出した端部とケーシング7の内部に配置された端部を接続する際、例えばこれら端部を直接接続すればよい。また、ケーシング7の内部に配置された端部同士を接続する際、例えばこれら端部を第2配管部200a,200bを介して接続すればよい。
実施の形態1および実施の形態2では、3台の冷凍サイクル装置を連結して構成した冷凍サイクルシステムの例について説明したが、実施の形態3では、4台の冷凍サイクル装置を連結して構成した冷凍サイクルシステムについて説明する。なお、この実施の形態において、特に記述しない項目については実施の形態1または実施の形態2と同様とし、同一の機能または構成については同一の符号を用いて述べることとする。
以下の説明では、冷凍サイクル装置100について、図15において、右側から順に、第1冷凍サイクル装置100A、第2冷凍サイクル装置100B、第3冷凍サイクル装置100C、第4冷凍サイクル装置100Dと称する。また、開閉部セット61について、右側から順に、第1開閉部セット61A、第2開閉部セット61B、第3開閉部セット61C、第4開閉部セット61D、第5開閉部セット61Eと称する。
ステップS201にて、図5に記載の制御部15は、熱媒体の温度t1が第1下限定格温度T1と第1上限定格温度T2との間にあるか否かを判断する。なお、第1下限定格温度T1は、例えば6℃であり、第1上限定格温度T2は、例えば8℃である。ステップS201にて、熱媒体の温度t1が第1下限定格温度T1と第1上限定格温度T2との間にない場合には、ステップS202にて、制御部15は、第1冷凍サイクル装置100A~第4冷凍サイクル装置100Dの運転を変更する。ステップS202で第1冷凍サイクル装置100A~第4冷凍サイクル装置100Dの運転を変更した後に、ステップS203にて、制御部15は、第1開閉部セット61A~第5開閉部セット61Eを切り替える。
図17は、この発明の実施の形態3に係る冷凍サイクルシステムの動作モードを説明する表である。
冷凍サイクルシステム304は、例えば、第1動作モードで運転している。第1動作モードでは、第1冷凍サイクル装置100Aが冷房運転を行っており、第4冷凍サイクル装置100Dが暖房運転を行っている。このときに、第1開閉部セット61Aは開放されており、第2開閉部セット61B~第4開閉部セット61Dは閉止されており、第5開閉部セット61Eは開放されている。すなわち、第1負荷70には、第1冷凍サイクル装置100Aで冷却された冷媒が循環しており、第2負荷80には、第4冷凍サイクル装置100Dで加熱された冷媒が循環している。
このときに、閉止された第2開閉部セット61Bと閉止された第3開閉部セット61Cとの間に位置する熱媒体熱交換器50を備えた第2冷凍サイクル装置100B、および、閉止された第3開閉部セット61Cと閉止された第4開閉部セット61Dとの間に位置する熱媒体熱交換器50を備えた第3冷凍サイクル装置100Cは、運転を停止している。
冷凍サイクルシステム304が、第1動作モードで運転している場合に、図16に示すステップS201にて、熱媒体の温度t1が第1上限定格温度T2よりも高くなった場合には、第1負荷70の冷房負荷が大きいと考えられる。そこで、制御部15は、例えば、図17に示す第1動作モードから第2動作モードに切り替える。すなわち、ステップS202にて、第2冷凍サイクル装置100Bの冷房運転を開始する。そして、ステップS203にて、第2開閉部セットを開放する。このようにして、第1負荷70の冷房負荷が大きくなったときに、冷凍サイクル装置を追加起動する。
なお、上記の説明では、1台の第2冷凍サイクル装置100Bを追加起動する例について説明したが、制御部15は、第2冷凍サイクル装置100Bおよび第3冷凍サイクル装置100Cを追加起動してもよい。また、制御部15は、第2冷凍サイクル装置100B、第3冷凍サイクル装置100Cおよび第4冷凍サイクル装置100Dを追加起動してもよい。
実施の形態3では、熱媒体入口流路に流れる熱媒体の温度に基づいて、冷凍サイクルシステムの動作モードを切り替える例についての説明を行ったが、実施の形態4では、圧縮機の運転周波数に基づいて、冷凍サイクルシステムの動作モードを切り替える。なお、この実施の形態において、特に記述しない項目については実施の形態3と同様とし、同一の機能または構成については同一の符号を用いて述べることとする。
ステップS301にて、図5に記載の制御部15は、圧縮機1の運転周波数f1が第1下限周波数F1と第1上限周波数F2との間にあるか否かを判断する。例えば、運転周波数f1が第1下限周波数F1以下の場合は、冷房負荷が小さい場合であり、運転周波数f1が第1上限周波数F2以上の場合は、冷房負荷が大きい場合である。ここで、圧縮機1の運転周波数f1は、運転されている複数台または1台の圧縮機1の運転周波数の合計である。圧縮機1の運転周波数f1は、運転されている各々の圧縮機1の運転周波数であってもよい。ステップS301にて、圧縮機1の運転周波数f1が第1下限周波数F1と第1上限周波数F2との間にない場合には、ステップS302にて、制御部15は、第1冷凍サイクル装置100A~第4冷凍サイクル装置100Dの運転を変更する。ステップS302で第1冷凍サイクル装置100A~第4冷凍サイクル装置100Dの運転を変更した後に、ステップS303にて、制御部15は、第1開閉部セット61A~第5開閉部セット61Eを切り替える。
Claims (11)
- 圧縮機と、流路切替装置と、熱源側熱交換器と、膨張装置と、熱媒体が流れる熱媒体流路と該熱媒体と熱交換する冷媒が流れる冷媒流路とを有する熱媒体熱交換器の該冷媒流路と、が、冷媒配管で接続され、内部を前記冷媒が循環する冷媒回路を備え、
複数台が連結されて冷凍サイクルシステムを構成する冷凍サイクル装置であって、
両端部が連結部であり、途中部が前記熱媒体熱交換器の熱媒体流入口に接続された熱媒体入口配管と、
両端部が連結部であり、途中部が前記熱媒体熱交換器の熱媒体流出口に接続された熱媒体出口配管と、
前記熱媒体入口配管および前記熱媒体出口配管の、前記途中部と前記両端部のうちの少なくとも一方の端部との間に設置された開閉手段セットと、を備えた冷凍サイクル装置。 - 前記冷媒回路を収容したケーシングをさらに備え、
前記熱媒体入口配管および前記熱媒体出口配管の少なくとも一方は、一方の端部が前記ケーシングの端面から離間して前記ケーシングの内部に位置し、他方の端部が前記ケーシングの端面から突出している請求項1記載の冷凍サイクル装置。 - 前記冷媒回路を収容したケーシングをさらに備え、
前記熱媒体入口配管および前記熱媒体出口配管の少なくとも一方は、前記途中部を有し前記途中部から両側に延びる第1配管部、および前記第1配管部の少なくとも一方の側に接続される第2配管部を含み、
前記第1配管部の両方の端部は、前記ケーシングの端面から離間して前記ケーシングの内部に位置しており、
前記第2配管部の前記第1配管部に接続されない側の端部は、前記ケーシングの端面から突出する状態で接続され、
前記開閉手段セットは、前記第1配管部に設置された請求項1記載の冷凍サイクル装置。 - 前記冷媒回路を収容したケーシングをさらに備え、
前記熱媒体入口配管および前記熱媒体出口配管の少なくとも一方は、前記途中部を有し前記途中部から両側に延びる第1配管部、および前記第1配管部の少なくとも一方の側に接続される第2配管部を含み、
前記第1配管部の両方の端部は、前記ケーシングの端面から離間して前記ケーシングの内部に位置しており、
前記第2配管部の前記第1配管部に接続されない側の端部は、前記ケーシングの端面から突出する状態で接続され、
前記開閉手段セットは、前記第2配管部に設置された請求項1記載の冷凍サイクル装置。 - 請求項2~請求項4の何れか1項に記載の冷凍サイクル装置が複数台連結された冷凍サイクルシステムであって、
前記熱媒体入口配管および前記熱媒体出口配管の端部は、複数の前記ケーシングのいずれかの内部で接続されていることを特徴とする冷凍サイクルシステム。 - 請求項1~請求項4の何れか1項に記載の冷凍サイクル装置を複数台備え、
複数の前記熱媒体入口配管が連結された熱媒体入口流路および複数の前記熱媒体出口配管が連結された熱媒体出口流路の一端側に、第1負荷が接続され、他端側に、第2負荷が接続されており、
前記熱媒体入口流路および前記熱媒体出口流路における、複数の前記熱媒体熱交換器のうちの少なくとも1台の前記熱媒体熱交換器の、前記熱媒体流入口および前記熱媒体流出口の両側に、前記開閉手段セットが設置されるように、前記冷凍サイクル装置が連結された冷凍サイクルシステム。 - 圧縮機と、流路切替装置と、熱源側熱交換器と、膨張装置と、熱媒体が流れる熱媒体流路と該熱媒体と熱交換する冷媒が流れる冷媒流路とを有する熱媒体熱交換器の該冷媒流路と、が、冷媒配管で接続され、内部を前記冷媒が循環する複数の冷媒回路と、
前記複数の熱媒体熱交換器の熱媒体流入口のそれぞれが接続された熱媒体入口流路と、
前記複数の熱媒体熱交換器の熱媒体流出口のそれぞれが接続された熱媒体出口流路と、
前記熱媒体入口流路および前記熱媒体出口流路における、前記複数の熱媒体熱交換器のうちの少なくとも1台の前記熱媒体熱交換器の前記熱媒体流入口および前記熱媒体流出口の両側に設置された開閉手段セットと、を備え、
前記熱媒体入口流路および前記熱媒体出口流路の一端側に、第1負荷が接続され、他端側に、第2負荷が接続された冷凍サイクルシステム。 - 前記流路切替装置および前記開閉手段セットの制御を行う制御部を備え、
前記制御部は、前記第1負荷に加熱した前記熱媒体を供給し、且つ、前記第2負荷に冷却した前記熱媒体を供給するように、前記流路切替装置および前記開閉手段セットの制御を行う請求項6または請求項7に記載の冷凍サイクルシステム。 - 前記制御部は、閉止された前記開閉手段セットの間に位置する前記熱媒体熱交換器に接続された前記圧縮機の動作を停止する請求項8記載の冷凍サイクルシステム。
- 前記熱媒体入口流路に設置され、前記熱媒体入口流路内の熱媒体の温度を検出する温度検出部をさらに備え、
前記制御部は、前記温度検出部の検出結果に基づいて、前記圧縮機、前記流路切替装置および前記開閉手段セットの制御を行うことを特徴とする請求項8または請求項9に記載の冷凍サイクルシステム。 - 前記圧縮機の運転周波数を検出する圧縮機運転周波数検出部をさらに備え、
前記制御部は、前記圧縮機運転周波数検出部の検出結果に基づいて、前記圧縮機、前記流路切替装置および前記開閉手段セットの制御を行うことを特徴とする請求項8~請求項10の何れか1項に記載の冷凍サイクルシステム。
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| JP2016528738A JP6338663B2 (ja) | 2014-06-19 | 2014-06-19 | 冷凍サイクル装置および冷凍サイクルシステム |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019026234A1 (ja) * | 2017-08-03 | 2019-02-07 | 三菱電機株式会社 | 冷凍サイクル装置 |
| WO2020116190A1 (ja) * | 2018-12-03 | 2020-06-11 | 東芝キヤリア株式会社 | 熱源システムの管理装置、熱源システムの管理方法、熱源システムの管理情報の表示方法、および、熱源システムの表示装置 |
| WO2020220581A1 (zh) * | 2019-04-28 | 2020-11-05 | 广东美芝精密制造有限公司 | 空调系统 |
| CN113573543A (zh) * | 2021-06-10 | 2021-10-29 | 华为技术有限公司 | 分布式复合制冷系统和数据中心 |
| WO2022249424A1 (ja) * | 2021-05-28 | 2022-12-01 | 三菱電機株式会社 | 冷凍サイクルシステム |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519839U (ja) * | 1991-03-04 | 1993-03-12 | 東邦瓦斯株式会社 | 冷暖同時空調システム |
| JPH07103516A (ja) * | 1993-09-30 | 1995-04-18 | Kajima Corp | 複数熱源の配管方式 |
| US20080127662A1 (en) * | 2006-06-19 | 2008-06-05 | Stanfield Michael E | Method, System, and Apparatus for Modular Central Plant |
| JP2008267722A (ja) * | 2007-04-23 | 2008-11-06 | Mitsubishi Electric Corp | 熱源機および冷凍空調装置 |
| JP2008267724A (ja) * | 2007-04-23 | 2008-11-06 | Mitsubishi Electric Corp | ヒートポンプ装置 |
| US20120131935A1 (en) * | 2009-05-11 | 2012-05-31 | Lg Electronics Inc. | Air conditioner and method for operating same |
| JP2012247168A (ja) * | 2011-05-31 | 2012-12-13 | Mitsubishi Electric Corp | 冷凍サイクル装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4221780B2 (ja) * | 1998-07-24 | 2009-02-12 | ダイキン工業株式会社 | 冷凍装置 |
-
2014
- 2014-06-19 JP JP2016528738A patent/JP6338663B2/ja not_active Expired - Fee Related
- 2014-06-19 WO PCT/JP2014/066355 patent/WO2015194020A1/ja not_active Ceased
- 2014-06-19 GB GB1700466.4A patent/GB2542310B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519839U (ja) * | 1991-03-04 | 1993-03-12 | 東邦瓦斯株式会社 | 冷暖同時空調システム |
| JPH07103516A (ja) * | 1993-09-30 | 1995-04-18 | Kajima Corp | 複数熱源の配管方式 |
| US20080127662A1 (en) * | 2006-06-19 | 2008-06-05 | Stanfield Michael E | Method, System, and Apparatus for Modular Central Plant |
| JP2008267722A (ja) * | 2007-04-23 | 2008-11-06 | Mitsubishi Electric Corp | 熱源機および冷凍空調装置 |
| JP2008267724A (ja) * | 2007-04-23 | 2008-11-06 | Mitsubishi Electric Corp | ヒートポンプ装置 |
| US20120131935A1 (en) * | 2009-05-11 | 2012-05-31 | Lg Electronics Inc. | Air conditioner and method for operating same |
| JP2012247168A (ja) * | 2011-05-31 | 2012-12-13 | Mitsubishi Electric Corp | 冷凍サイクル装置 |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019026234A1 (ja) * | 2017-08-03 | 2019-02-07 | 三菱電機株式会社 | 冷凍サイクル装置 |
| JPWO2019026234A1 (ja) * | 2017-08-03 | 2020-02-27 | 三菱電機株式会社 | 冷凍サイクル装置 |
| GB2578533A (en) * | 2017-08-03 | 2020-05-13 | Mitsubishi Electric Corp | Refrigeration cycle device |
| GB2578533B (en) * | 2017-08-03 | 2021-07-28 | Mitsubishi Electric Corp | Refrigeration cycle apparatus |
| WO2020116190A1 (ja) * | 2018-12-03 | 2020-06-11 | 東芝キヤリア株式会社 | 熱源システムの管理装置、熱源システムの管理方法、熱源システムの管理情報の表示方法、および、熱源システムの表示装置 |
| JPWO2020116190A1 (ja) * | 2018-12-03 | 2021-09-27 | 東芝キヤリア株式会社 | 熱源システムの管理装置、熱源システムの管理方法、熱源システムの管理情報の表示方法、および、熱源システムの表示装置 |
| JP7194753B2 (ja) | 2018-12-03 | 2022-12-22 | 東芝キヤリア株式会社 | 熱源システムの管理装置、熱源システムの管理方法 |
| WO2020220581A1 (zh) * | 2019-04-28 | 2020-11-05 | 广东美芝精密制造有限公司 | 空调系统 |
| US12078393B2 (en) | 2019-04-28 | 2024-09-03 | Guangdong Meizhi Precision-Manufacturing Co., Ltd. | Air conditioning system |
| WO2022249424A1 (ja) * | 2021-05-28 | 2022-12-01 | 三菱電機株式会社 | 冷凍サイクルシステム |
| CN113573543A (zh) * | 2021-06-10 | 2021-10-29 | 华为技术有限公司 | 分布式复合制冷系统和数据中心 |
| CN113573543B (zh) * | 2021-06-10 | 2023-09-29 | 华为数字能源技术有限公司 | 分布式复合制冷系统和数据中心 |
Also Published As
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| GB2542310B (en) | 2020-04-01 |
| GB201700466D0 (en) | 2017-02-22 |
| JP6338663B2 (ja) | 2018-06-06 |
| GB2542310A (en) | 2017-03-15 |
| JPWO2015194020A1 (ja) | 2017-04-20 |
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