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WO2017187505A1 - Soupape rotative d'ouverture/fermeture de circuit d'écoulement - Google Patents

Soupape rotative d'ouverture/fermeture de circuit d'écoulement Download PDF

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Publication number
WO2017187505A1
WO2017187505A1 PCT/JP2016/063021 JP2016063021W WO2017187505A1 WO 2017187505 A1 WO2017187505 A1 WO 2017187505A1 JP 2016063021 W JP2016063021 W JP 2016063021W WO 2017187505 A1 WO2017187505 A1 WO 2017187505A1
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WO
WIPO (PCT)
Prior art keywords
valve body
flow path
outer peripheral
cylindrical valve
opening
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2016/063021
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English (en)
Japanese (ja)
Inventor
和博 伊藤
▲高▼田　茂生
染谷　潤
浩司 陸川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2016/063021 priority Critical patent/WO2017187505A1/fr
Publication of WO2017187505A1 publication Critical patent/WO2017187505A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/076—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles

Definitions

  • the present invention relates to a rotary flow path opening / closing valve, and more particularly, to a structure of a rotary flow path opening / closing valve.
  • Patent Document 1 discloses a heat pump that uses a rotary four-way switching valve that interrupts heating operation during heating operation and switches to cooling operation to perform a defrosting function.
  • frost is generated in the outdoor heat exchanger during the heating operation in which the outdoor heat exchanger functions as an evaporator, so the rotary four-way switching valve refrigerant circuit is changed and the cooling operation is performed.
  • the frost is melting.
  • a rotary four-way switching valve is provided as an element for changing the configuration of the refrigerant circuit.
  • a plurality of electromagnetic valves are also provided to shut off the refrigerant circuit.
  • the rotary four-way switching valve and a plurality of solenoid valves are required as elements to change the configuration of the refrigerant circuit, the refrigerant circuit of the air conditioner becomes complicated, and the number of processes at the time of manufacturing is also the number of parts. Will increase, leading to an increase in the size of the air conditioner.
  • a four-way valve such as a rotary type four-way switching valve, or a solenoid valve, the on-state or the off-state is maintained depending on whether it is energized or not energized. The case where it is. If the air conditioner is provided with a plurality of four-way valves, solenoid valves, etc., it is considered that the power consumption of the air conditioner increases.
  • a rotary flow path opening / closing valve that can switch a refrigerant flow path to a plurality of patterns with a small number of components and consumes less power. The purpose is to provide.
  • a rotary flow path opening / closing valve has a plurality of first openings, a cylindrical cylindrical valve body through which a refrigerant flows, and an inside of the cylindrical valve body, both ends of which A plurality of conduits connected to one opening, a cylindrical valve body outer periphery that coaxially accommodates the cylindrical valve body, and a valve body outer periphery formed in the valve body outer periphery and connected to a refrigerant circuit to allow refrigerant to flow A plurality of second openings, and the cylindrical valve body is rotated with respect to the outer periphery of the valve body so that the first opening and the second opening communicate with each other. It is configured.
  • the plurality of connection points provided in the outer peripheral portion of the valve body and the plurality of openings of the circular valve body accommodated in the outer peripheral portion of the valve pair are made to coincide with each other.
  • a refrigerant circuit through which the refrigerant flows is configured.
  • refrigerant circuit block diagram at the time of the refrigerant
  • coolant leakage prevention mode of the rotary flow-path on-off valve which concerns on embodiment.
  • refrigerant circuit block diagram at the time of the 2nd defrost mode of the rotary flow-path on-off valve which concerns on embodiment.
  • refrigerant circuit block diagram at the time of the conventional mode of the rotary flow-path on-off valve which concerns on embodiment.
  • refrigerant circuit block diagram at the time of incorporating a some solenoid valve in a refrigerant circuit as a switching device. It is the schematic diagram which looked at the valve body outer peripheral part 80a and the 1st cylindrical valve body 81 of the rotary flow-path on-off valve 80 which concern on a modification from the axial direction.
  • Embodiment A rotary flow path opening / closing valve according to the present embodiment is disposed, for example, between an outdoor unit and an indoor unit of an air conditioner, and in the air conditioner, an exhaust heat recovery mode, a first defrost mode It is used as a switching device for constructing a refrigerant circuit that implements the refrigerant leakage prevention mode, the second defrosting mode, and the like.
  • FIG. 1 is a schematic diagram showing a state in which a rotary flow path opening / closing valve 80 according to the present embodiment is arranged in an air conditioner 103.
  • the rotary flow path opening / closing valve 80 includes a valve body outer peripheral portion 80a, and a first cylindrical valve body 81 and a second cylindrical valve body 82 housed inside the valve body outer peripheral portion 80a.
  • the rotary flow path opening / closing valve 80 is connected to the expansion device 5a and the indoor side heat exchanger 6a of the indoor unit 60a, and the flow path switching device 2 and the outdoor heat exchanger 3 of the outdoor unit 30 by refrigerant piping. ing.
  • the rotary flow path opening / closing valve 80 is also connected to a refrigerant pipe that connects the exhaust heat recovery heat exchanger 4 and a refrigerant pipe that forms a bypass circuit 84.
  • the rotary flow path opening / closing valve 80 is equipped with an electric motor such as a motor 83, and the valve body of the rotary flow path opening / closing valve 80 is rotated by driving the motor 83.
  • the valve body outer periphery 80a has a cylindrical shape, and a plurality of connection openings 81a, 81b, 81c, 81d and connection openings 82a, 82b, 82c, 82d are formed through the valve body outer periphery 80a. ing.
  • the connection openings 81a to 81d and the connection openings 82a to 82d are connected to a refrigerant pipe constituting a refrigerant circuit.
  • the connection openings 81a to 81d and the connection openings 82a to 82d are connected to the outer periphery 80a of the valve body.
  • the refrigerant flows in and out.
  • the connection opening is an example of the second opening of the present invention.
  • connection openings 81a to 81d are arranged in a line at equal intervals on the same circumference of the valve body outer periphery 80a.
  • the connection openings 82a to 82d are arranged in a line at equal intervals on the same circumference of the valve body outer peripheral portion 80a at the positions in the axial direction of the connection openings 81a to 81d.
  • the connection opening 81b is connected to the refrigerant pipe connected to the expansion device 5a of the indoor unit 60a, and the connection opening 81d is connected to the refrigerant pipe connected to the flow path switching device 2 of the outdoor unit 30.
  • connection opening 82b is connected to a refrigerant pipe connected to the indoor heat exchanger 6a of the indoor unit 60a, and the connection opening 82d is connected to a refrigerant pipe connected to the outdoor heat exchanger 3 of the outdoor unit 30.
  • the connection opening 81a and the connection opening 82a are connected to a refrigerant pipe constituting a circuit to which the exhaust heat recovery heat exchanger 4 is connected.
  • the connection opening 81c and the connection opening 82c are connected to a refrigerant pipe constituting the bypass circuit 84.
  • a defrosting expansion device (not shown) may be connected in series with the heat exchanger 4 for exhaust heat recovery to the circuit connecting the connection opening 81a and the connection opening 82a.
  • FIG. 2 is a schematic diagram when the first cylindrical valve body 81 and the second cylindrical valve body 82 housed in the valve body outer peripheral portion 80a according to the embodiment are viewed in the axial direction.
  • the 1st cylindrical valve body 81 and the 2nd cylindrical valve body 82 which are accommodated in the valve body outer peripheral part 80a have the cylindrical shape of the same circular cross section.
  • the refrigerant flowing through the connection openings 81 a to 81 d and the connection openings 82 a to 82 d of the valve body outer peripheral portion 80 a is connected to the outer peripheral space 801 and the outer peripheral space 802.
  • the outer peripheral space 801 is formed between the first cylindrical valve body 81 and the valve body outer peripheral portion 80a, and connection openings 81a to 81d are opened.
  • the outer peripheral space 802 is formed between the second cylindrical valve body 82 and the valve body outer peripheral portion 80a, and connection openings 82a to 82d are opened.
  • the outer peripheral space 801 and the outer peripheral space 802 between the outer peripheral surface of the first cylindrical valve body 81 and the second cylindrical valve body 82 and the inner peripheral surface of the valve body outer peripheral portion 80a are the first cylindrical valve body 81 and the second cylinder.
  • a wall plate 80b protruding from the outer peripheral surface of the valve body 82 toward the inner peripheral surface of the valve body outer peripheral portion 80a.
  • the end of the wall plate 80b is slidably in contact with the inner peripheral surface of the valve body outer peripheral portion 80a.
  • the outer peripheral space 801 and the outer peripheral space 802 are divided in the circumferential direction by a plurality of partition plates 85 protruding from the outer peripheral surfaces of the first cylindrical valve body 81 and the second cylindrical valve body 82 toward the inner surface direction of the valve body outer peripheral portion 80a.
  • Pipe lines 811, 812, and 813 are formed inside the first cylindrical valve body 81, and pipe lines 821, 822, and 823 are formed inside the second cylindrical valve body 82, and the pipe lines 811, Areas F other than 812 and 813 and the pipe lines 821, 822 and 823 are the region F.
  • FIG. 3 is a schematic diagram illustrating a configuration around the first cylindrical valve body 81 and the second cylindrical valve body 82 according to the embodiment.
  • a plurality of space portions 81 (i) and 82 (i) are formed.
  • the space portions 81 (i) and 82 (i) are defined as space portions 81 (1) to 81 (16) and 82 (1) to 82 (16) counterclockwise.
  • a part of the space portions 81 (i) and 82 (i) has openings in the outer peripheral surfaces 810 and 820, and the first through the openings in the outer peripheral surfaces 810 and 820 of the space portions 81 (i) and 82 (i).
  • the refrigerant flows into and out of the first cylindrical valve body 81 and the second cylindrical valve body 82.
  • Out of the space portions 81 (i) and 82 (i), the space portions 81 (10), 81 (14), 82 (10), and 82 (14) have the outer peripheral surfaces 810 and 820 closed, and the refrigerant Do not distribute.
  • the openings on the outer peripheral surfaces 810 and 820 are an example of the first opening of the present invention.
  • Both ends of the pipe lines 811, 812, 813 and the pipe lines 821, 822, 823 are connected to the openings of the outer peripheral surfaces 810, 820, and the refrigerant flows through the first cylindrical valve body 81 and the second cylinder through a predetermined path.
  • a flow path is defined so as to flow inside the valve body 82.
  • the pipe lines 811, 812, and 813 allow the refrigerant flowing from the space portion 81 (i) connected at one end to flow only toward the space portions 81 (i) and 82 (i) connected at the other end.
  • the flow path is defined.
  • the pipe line 811 is connected to the space portion 81 (16) and the space portion 81 (4).
  • the pipe line 812 is connected to the space part 81 (2) and the space part 81 (6). Further, the pipe line 813 is connected to the space portions 81 (7) to 81 (9) and the space portions 81 (11) to 81 (13). Similarly, at both ends of the pipes 821, 822, and 823, the refrigerant flowing from the space portion 82 (i) to which one end is connected flows only toward the space portion 82 (i) to which the other end is connected. Specifically, the pipe line 821 is connected to the space part 82 (12) and the space part 82 (16), and the pipe line 822 is connected to the space part 82 (2) and the space part 82 (6).
  • the pipe line 823 is connected to the space portions 82 (3) to 82 (5) and the space portions 82 (7) to 82 (9).
  • the adjacent space portions 81 (i) and 82 (i) are provided with a partition plate 85 between them. It is not done. That is, the spaces 81 (7) to 81 (9) form one space and are connected to one end of the pipe line 813.
  • the spaces 81 (11) to 81 (13) also form one space and are connected to the other end of the pipe line 813.
  • the space portions 82 (3) to 82 (5) and the space portions 82 (7) to 82 (9) form one space and are connected to both ends of the conduit 823.
  • the first cylindrical valve body 81 and the second cylindrical valve body 82 are arranged coaxially, are joined so that the inside communicates, and are accommodated in the valve body outer peripheral portion 80a.
  • the wall plate 80b that partitions the outer peripheral surface of the first cylindrical valve body 81 and the second cylindrical valve body 82 and the inner peripheral surface of the valve body outer peripheral portion 80a into the outer peripheral space 801 and the outer peripheral space 802 is the first cylindrical valve body. 81 and the second cylindrical valve body 82. Similar to the plurality of partition plates 85, the outer peripheral end of the wall plate 80b is slidably in contact with the inner surface of the valve body outer peripheral portion 80a.
  • the refrigerant flow path is restricted. It is an area that can be freely distributed.
  • the space portions 81 (i) and 82 (i) connected to the region F are connected to the region F without circulating refrigerant flowing toward the specific space portions 81 (i) and 82 (i). It can be distributed to any other space 81 (i), 82 (i). Specifically, the space portions 81 (1), 81 (3), 81 (5), 81 (15), and the space portions 82 (1), 82 (11), 82 (13), 82 (15).
  • the outer peripheral surfaces 810 and 820 are connected to a region F where the flow path of the refrigerant is not restricted.
  • the refrigerant that has flowed from the openings of the outer peripheral surfaces 810 and 820 of the space portion 81 (1) can flow out of the space portion 82 (15).
  • FIG. 4 is a schematic diagram showing a state in which the first cylindrical valve body 81 and the second cylindrical valve body 82 according to the embodiment are accommodated in the valve body outer peripheral portion 80a.
  • the valve body outer peripheral portion 80a accommodates a first cylindrical valve body 81 and a second cylindrical valve body 82, and refrigerant pipes are respectively connected to the connection openings 81a to 81d and the connection openings 82a to 82d. Is connected.
  • the connection openings 81a to 81d and the connection openings 82a to 82d of the valve body outer peripheral portion 80a coincide with the space portions 81 (i) and 82 (i) of the first cylindrical valve body 81 and the second cylindrical valve body 82.
  • the flow path of the refrigerant flowing into the rotary flow path opening / closing valve 80 is formed.
  • the valve body outer peripheral portion 80a and the first cylindrical valve body 81 and the second cylindrical valve body 82 are relative to each other.
  • the positional relationship changes.
  • the connection openings 81a to 81d and the space portions 81 (i) and 82 (i) corresponding to the connection openings 82a to 82d are changed. Then, the flow path of the refrigerant is switched.
  • the refrigerant flows in from the connection openings 81a to 81d and the connection openings 82a to 82d formed in the outer peripheral portion 80a of the rotary flow path opening / closing valve 80, and is connected to the connection openings 81a to 81d and the connection openings 82a to 82d. Flows into the space portions 81 (i) and 82 (i) that coincide with each other. Then, it passes through the openings of the space portions 81 (i) and 82 (i) and flows into the first cylindrical valve body 81 and the second cylindrical valve body 82.
  • the refrigerant flows through the pipe lines 811, 812, 813 and the pipe lines 821, 822, 823 or the region F of the first cylindrical valve body 81 and the second cylindrical valve body 82, and the space portions 81 (i), 82 ( It flows out from the opening of i).
  • the refrigerant passes through any one of the connection openings 81a to 81d and the connection openings 82a to 82d of the valve body outer peripheral portion 80a that coincides with the spaces 81 (i) and 82 (i) through which the refrigerant has passed.
  • the refrigerant pipes connected to the connection openings 82a to 82d are circulated.
  • FIG. 5 is a refrigerant circuit configuration diagram in a state where the rotary flow path opening / closing valve 80 according to the embodiment is incorporated in the refrigerant circuit.
  • the rotary flow path opening / closing valve 80 is connected to the expansion device 5a of the indoor unit 60a, the indoor heat exchanger 6a, and the outdoor unit 30 at the connection openings 81a to 81d and the connection openings 82a to 82d.
  • the flow path switching device 2 and the outdoor heat exchanger 3 are connected to each other.
  • the rotary flow path opening / closing valve 80 forms a refrigerant circuit whose rotation angle is controlled by the control device in accordance with the operation content of the air conditioner 103, and the desired operation content can be realized by changing the refrigerant path.
  • the motor 83 of the rotary flow path opening / closing valve 80 is driven, the first cylindrical valve body 81 and the second cylindrical valve body 82 inside the valve body outer peripheral portion 80a have a predetermined rotation angle with respect to the valve body outer peripheral portion 80a. It rotates by n ⁇ ⁇ .
  • FIGS. 6 and 7 are schematic views showing the first cylindrical valve body 81 and the second cylindrical valve body 82 at the rotation angle ⁇ of the rotary flow path opening / closing valve 80 according to the embodiment.
  • the predetermined rotation angle n ⁇ ⁇ is represented by an angle ⁇ of two wall surfaces that define the respective space portions 81 (i) and 82 (i). That is, ⁇ is a multiple of 360 ° / i.
  • the path through which the refrigerant circulates is configured with a pattern of the number of spaces.
  • the rotary flow path opening / closing valve 80 rotates the first cylindrical valve body 81 and the second cylindrical valve body 82 at a predetermined rotation angle n ⁇ ⁇ , and the valve body outer peripheral portion 80a, the first cylindrical valve body 81, and the first cylindrical valve body 81
  • the relative position with respect to the two cylindrical valve bodies 82 is changed.
  • the connection openings 81a to 81d and the space portions 81 (i) and 82 (i) corresponding to the connection openings 82a to 82d are changed, and the path through which the refrigerant circulates is switched.
  • the connection openings 81a to 81d and the connection openings 82a to 82d communicate with the spaces 81 (i) and 82 (i), and the refrigerant flows.
  • connection openings 81a to 81d of the rotary flow path opening / closing valve 80 passes through the opening of the space 81 (i) that coincides with the connection openings 81a to 81d from the connection openings 81a to 81d. , Flows into the second cylindrical valve element 82.
  • the refrigerant that has reached the connection openings 82a to 82d passes through the openings in the space 82 (i) that coincide with the connection openings 82a to 82d from the connection openings 82a to 82d, and then the first cylindrical valve body 81 and the second cylindrical valve body 82. Flow into.
  • connection openings 81a to 81d and the connection openings 82a to 82d flows through the inside of the valve body outer peripheral portion 80a. Then, through the openings of the space portions 81 (i) and 82 (i), any of the other connection openings 81a to 81d and the connection openings 82a to 82d that coincide with the space portions 81 (i) and 82 (i) Spill from.
  • the air conditioner 103 performs a path corresponding to each operation content by the rotary flow path opening / closing valve 80 in order to implement the exhaust heat recovery mode, the first defrosting mode, the refrigerant leakage prevention mode, or the second defrosting mode. Circulate the refrigerant.
  • the operation content includes a refrigerant circuit that implements a conventional mode in which the exhaust heat recovery auxiliary circuit 8 is not connected.
  • Table 1 shows the correspondence between the rotation angle of the rotary flow path opening / closing valve 80, the connection openings 81a to 81d, the connection openings 82a to 82d, and the space portions 81 (i) and 82 (i) corresponding to the respective connection openings. It is a table
  • connection openings 81a to 81d and the connection openings 82a to 82d are respectively corresponding to the rotation angles.
  • the space portions 81 (i) and 82 (i) that match are switched.
  • the connection partners of the connection openings 81a to 81d and the connection openings 82a to 82d are changed, and the exhaust heat recovery mode, the first defrosting mode, the refrigerant leakage prevention mode, or the second defrosting mode is performed.
  • a refrigerant circuit is configured.
  • the refrigerant circuit in the exhaust heat recovery mode is configured by setting the rotation angle to 90 ° or 270 °.
  • the refrigerant circuit in the first defrosting mode is configured, and 112.5 °, 247.5 °, 292.5 °, or 315 °.
  • the refrigerant circuit of the 2nd defrost mode is comprised by setting it as 45 degrees or 67.5 degrees. If the rotation angle is 22.5 ° or 337.5 °, a circuit in which the conventional exhaust heat recovery heat exchanger 4 is not used is configured.
  • the connection openings 81d and 82d coincide with the space portion 81 (10) or the space portion 81 (14), the space portion 82 (10), or the space portion 82 (14).
  • the circuit does not include the outdoor heat exchanger 3 and the flow path switching device 2, the refrigerant circuit is not established, and the air conditioner 103 does not function.
  • the rotation angles are 0 ° to 45 ° and 270 ° to 337.5 °, and the refrigerant circuits of all patterns are almost continuous. Therefore, there is no intervening refrigerant circuit that appears in the middle.
  • FIG. 8 is a part of a refrigerant circuit configuration diagram in the exhaust heat recovery mode of the rotary flow path opening / closing valve 80 according to the embodiment.
  • the connection openings 81a to 81d have the space portion 81 (12), the space portion 81 (8), the space portion 81 (4), and the space portion. 81 (16).
  • the connection openings 82a to 82d communicate with the space 82 (12), the space 82 (8), the space 82 (4), and the space 82 (16).
  • connection opening 81a and the connection opening 81b, and the connection opening 81d and the connection opening 81c are connected by the first cylindrical valve body 81, and the connection opening 82a and the connection opening 82d are connected by the second cylindrical valve body 82, and The connection opening 82b and the connection opening 82c are connected. That is, the connection opening 81a and the connection opening 81b are connected by the pipe line 813 that defines the flow path from the space portion 81 (12) to the space portion 81 (8). Further, the connection opening 81d and the connection opening 81c are connected by a pipe line 811 that defines a flow path from the space portion 81 (16) to the space portion 81 (4).
  • connection opening 82a and the connection opening 82d are connected by a pipe line 823 that defines a flow path from the space 82 (12) to the space 82 (16), and the connection opening 82c and the connection opening 82b are connected to the space 82. It is connected by a pipe line 823 that defines a flow path from (4) to the space portion 82 (8).
  • the flow path switching device 2, the bypass circuit 84, and the indoor heat exchanger 6a are connected, the expansion device 5a and the exhaust heat recovery heat exchanger 4 are connected, and the exhaust heat recovery heat exchanger 4 and the chamber are connected.
  • the refrigerant circuit in the exhaust heat recovery mode is configured by connecting to the outer heat exchanger 3.
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 exchanges heat with outdoor air in the outdoor heat exchanger 3, and then exhausts and heats of the ventilator 10 in the exhaust heat recovery heat exchanger 4. Exchange. Further, during the heating operation, the low-temperature refrigerant condensed in the indoor heat exchanger 6a exchanges heat with the exhaust of the ventilator 10 in the exhaust heat recovery heat exchanger 4, and then outdoor in the outdoor heat exchanger 3. Exchange heat with air.
  • FIG. 9 is a part of a refrigerant circuit configuration diagram in the first defrosting mode of the rotary flow path opening / closing valve 80 according to the embodiment.
  • the connection openings 81a to 81d have the space portion 81 (16), the space portion 81 (12), the space portion 81 (8), and the space portion. 81 (4).
  • the connection openings 82a to 82d communicate with the space portion 82 (16), the space portion 82 (12), the space portion 82 (8), and the space portion 82 (4).
  • connection opening 81a and the connection opening 81d, and the connection opening 81b and the connection opening 81c are connected by the first cylindrical valve body 81, and the connection opening 82a and the connection opening 82b are connected by the second cylindrical valve body 82, and The connection opening 82c and the connection opening 82d are connected. That is, the connection opening 81a and the connection opening 81d are connected by the pipe line 811 that defines the flow path from the space portion 81 (16) to the space portion 81 (4). And the connection opening 81b and the connection opening 81c are connected by the pipe line 813 which prescribes
  • connection opening 82a and the connection opening 82b are connected by the pipe line 821 which prescribes
  • the connection opening 82c and the connection opening 82d are connected to each other by a pipe line 823 that defines a flow path from the space portion 82 (8) to the space portion 82 (4).
  • the flow path switching device 2 and the heat exchanger 4 for exhaust heat recovery are connected, and the expansion device 5a and the bypass circuit 84 are connected.
  • the heat exchanger 4 for exhaust heat recovery and the indoor heat exchanger 6a are connected, and the outdoor heat exchanger 3 and the bypass circuit 84 are connected to constitute a refrigerant circuit in the first defrosting mode.
  • the refrigerant that has flowed out of the outdoor heat exchanger 3 flows into the indoor unit 60a, and then flows into the heat exchanger 4 for exhaust heat recovery.
  • the refrigerant exchanges heat with the exhaust of the ventilator 10 in the exhaust heat recovery heat exchanger 4, then flows into the compressor 1, and defrosts again in the outdoor heat exchanger 3.
  • FIG. 10 is a part of a refrigerant circuit configuration diagram in the refrigerant leakage prevention mode of the rotary flow path opening / closing valve 80 according to the embodiment.
  • the connection openings 81a to 81d are the space portion 81 (14), the space portion 81 (10), the space portion 81 (6), and the space portion. 81 (2).
  • the connection openings 82a to 81d communicate with the space portion 82 (14), the space portion 82 (10), the space portion 82 (6), and the space portion 82 (2).
  • connection opening 81c and the connection opening 81d are connected by the first cylindrical valve body 81, and the connection opening 82c and the connection opening 82d are connected by the second cylindrical valve body 82. That is, the connection opening 81c and the connection opening 81d are connected by the pipe line 812 that defines the flow path from the space portion 81 (6) to the space portion 81 (2). In addition, the connection opening 82c and the connection opening 82d are connected by a pipe line 822 that defines a flow path from the space portion 82 (6) to the space portion 82 (2).
  • connection opening 81a and the connection opening 81b, and the connection opening 82a and the connection opening 82b are the closed space part 81 (14), the space part 81 (10), the space part 82 (14), and the space.
  • the flow path is not formed in communication with the portion 82 (10).
  • the heat exchanger 4 for exhaust heat recovery and the indoor heat exchanger 6a are disconnected from the refrigerant circuit, and the refrigerant circuit in the refrigerant leakage prevention mode is configured.
  • this mode can also be utilized as a defrosting mode by what is called triangular operation with the operation of the compressor 1.
  • the refrigerant circuit in which the refrigerant circuit is closed by the outer peripheral surfaces 810 and 820 of the space portions 81 (i) and 82 (i) is not configured, and the flow path of the refrigerant is restricted by the pressure relationship. become.
  • FIG. 11 is a part of a refrigerant circuit configuration diagram in the second defrosting mode of the rotary flow path opening / closing valve 80 according to the embodiment.
  • the connection openings 81a to 81d are the space portion 81 (2), the space portion 81 (14), the space portion 81 (10), and the space portion. 81 (6).
  • the connection openings 82a to 82d communicate with the space portion 82 (2), the space portion 82 (14), the space portion 82 (10), and the space portion 82 (6).
  • connection opening 81a and the connection opening 81d of the first cylindrical valve body 81 are connected, and the connection opening 82a and the connection opening 82d of the second cylindrical valve body 82 are connected. That is, the connection opening 81a and the connection opening 81d are connected by the pipe line 812 that defines the flow path from the space portion 81 (2) to the space portion 81 (6), and the connection opening 82a and the connection opening 82d are connected to the space portion 82. They are connected by a pipe line 822 that defines a flow path from (2) to the space 82 (6).
  • connection opening 81b and the connection opening 81c, and the connection opening 82b and the connection opening 82c are closed space part 81 (14), space part 81 (10), space part 82 (14), space part. 82 (10) communicates and no flow path is formed.
  • the flow path switching device 2, the exhaust heat recovery heat exchanger 4 and the outdoor heat exchanger 3 are connected to form a refrigerant circuit in the second defrosting mode.
  • the refrigerant circuit in which the refrigerant circuit is closed by the outer peripheral surfaces 810 and 820 of the space portions 81 (i) and 82 (i) is not configured, and the refrigerant flow path is restricted by the pressure relationship.
  • FIG. 12 is a part of a refrigerant circuit configuration diagram in the conventional mode of the rotary flow path opening / closing valve 80 according to the embodiment.
  • a conventional mode refrigerant circuit is configured.
  • the refrigerant circuit in the conventional mode is a refrigerant circuit in which the exhaust heat recovery auxiliary circuit 8 is not provided.
  • connection openings 81a to 81d are the space portion 81 (1), the space portion 81 (13), the space portion 81 (9), It communicates with the space part 81 (5).
  • the connection openings 82a to 82d communicate with the space portion 82 (1), the space portion 82 (13), the space portion 82 (9), and the space portion 82 (5).
  • the first cylindrical valve body 81 connects the connection opening 81b and the connection opening 81c
  • the second cylindrical valve body 82 connects the connection opening 82a and the connection opening 82d. That is, the connection opening 81b and the connection opening 81c are connected by the pipe line 813 that defines the flow path from the space portion 81 (13) to the space portion 81 (9).
  • the connection opening 82c and the connection opening 82d are connected by a pipe line 822 that defines a flow path from the space portion 82 (9) to the space portion 82 (10).
  • connection opening 81a and the connection opening 81d, and the connection opening 82a and the connection opening 82b are the space portion 81 (1), the space portion 81 (5), the space portion 82 (1), and the space portion 82 ( 13).
  • the space portion 81 (1), the space portion 81 (5), the space portion 82 (1), and the space portion 82 (13) have flow paths inside the first cylindrical valve body 81 and the second cylindrical valve body 82. It is connected to a region F that is not defined, and the flow path of the refrigerant is regulated by the pressure relationship.
  • the outdoor side heat exchanger 3, the flow path switching device 2, the expansion device 5a, and the indoor side heat exchanger 6a are connected to form a conventional refrigerant circuit.
  • the space portion 81 (15), the space portion 81 (3), the space portion 82 (15), and the space portion 82 (11) are connected to the first cylindrical valve body 81 and the second cylindrical valve body 82.
  • the refrigerant is connected to a region F where the flow path is not defined inside, and the flow path of the refrigerant is regulated by the pressure relationship.
  • FIG. 13 is a refrigerant circuit configuration diagram when a plurality of solenoid valves are incorporated in the refrigerant circuit as a switching device. As shown in FIG. 13, when a plurality of electromagnetic valves 7a, 7b, 7c, 7d, 7e, and 7f are incorporated in the air conditioner 102, ON and OFF are controlled according to the operation content, and the exhaust heat is exhausted. The recovery mode, the first defrost mode, the refrigerant leakage prevention mode, and the second defrost mode are performed.
  • the plurality of solenoid valves 7 a, 7 b, 7 c, 7 d, 7 e, and 7 f include the indoor heat exchanger 6 a and the expansion device 5 a of the indoor unit 60 a and the outdoor heat exchanger 3 of the outdoor unit 30.
  • circulates the flow-path switching apparatus 2 is changed.
  • the configuration of this refrigerant circuit is the same as the configuration of the refrigerant circuit shown in FIG. 5 with the rotary flow path opening / closing valve 80 incorporated in the refrigerant circuit.
  • the rotary flow path opening / closing valve 80 is configured by a single rotary flow path opening / closing valve 80 as a refrigerant circuit including a plurality of electromagnetic valves.
  • valve body outer peripheral portion 80a has been described as an example in which the first cylindrical valve body 81 and the second cylindrical valve body 82 are accommodated.
  • a plurality of bodies may be accommodated, and the number of cylindrical valve bodies is not limited.
  • the path of the pipeline formed inside each cylindrical valve body, the configuration of the region F, and the number and position of the connection openings are not limited.
  • the route through which the refrigerant flows is determined and the desired route is realized. can do.
  • FIG. 14 is a schematic view of the valve body outer peripheral portion 80a and the first cylindrical valve body 81 of the rotary flow path opening / closing valve 80 according to the modification viewed from the axial direction.
  • the 2nd cylindrical valve body 82 is the structure similar to the 1st cylindrical valve body 81, description of the 2nd cylindrical valve body 82 is abbreviate
  • the inner peripheral surface of the valve body outer peripheral portion 80a and the outer peripheral surface 810 of the first cylindrical valve body 81 are in contact with each other, and the outer peripheral space 801 is not provided.
  • the outer peripheral surface 810 is provided with a slit 814 that opens at a position corresponding to the space portion 81 (i). Further, slits 814 are continuously formed on the outer peripheral surface 810 corresponding to the adjacent space portion 81 (i). That is, one continuous slit 814 is formed on the outer peripheral surface 810 corresponding to the spaces 81 (7) to 81 (9), and is connected to one end of the pipe line 813.
  • the rotary flow path opening / closing valve 80 has openings on the outer peripheral surfaces 810 and 820 in the valve body outer peripheral portion 80a in which the connection openings 81a to 81d and the connection openings 82a to 82d are formed.
  • a first cylindrical valve element 81 and a second cylindrical valve element 82 are accommodated. Communication between the outer peripheral surfaces 810 and 820 of the first cylindrical valve body 81 and the second cylindrical valve body 82 and the connection openings 81a to 81d and the connection openings 82a to 82d of the valve body outer peripheral portion 80a allows the first cylindrical valve body.
  • the refrigerant flows into the 81 and the second cylindrical valve body 82.
  • connection openings 81a to 81d and the connection openings 82a to 82d communicate with the openings of the outer peripheral surfaces 810 and 820 connected to the pipes inside the first cylindrical valve body 81 and the second cylindrical valve body 82, and the refrigerant The flow path is switched.
  • the rotary flow path opening / closing valve 80 can switch a complicated refrigerant circuit to a plurality of patterns with only one component by a simple operation of rotating at a predetermined angle.
  • the motor 83 that rotates the rotary flow path opening / closing valve 80 may be energized during rotation, and does not require power when the angle is maintained. Therefore, it is possible to obtain a switching device that realizes a reduction in the number of parts and a reduction in power consumption, and has both space saving and ease of operation.
  • the rotary flow path opening / closing valve 80 is provided between the outer peripheral surfaces 810 and 820 of the first cylindrical valve body 81 and the second cylindrical valve body 82 and the inner peripheral surface of the valve body outer peripheral portion 80a.
  • space portions 81 (i) and 82 (i) divided by a plurality of partition plates 85 are formed. Thereby, a connection opening can be connected with the opening of the some outer peripheral surface 810,820.
  • a plurality of partition plates 85 are arranged from the outer peripheral surfaces 810 and 820 of the first cylindrical valve body 81 and the second cylindrical valve body 82 to the valve body outer peripheral portion 80a. It protrudes toward the inner peripheral surface and is in contact with the inner peripheral surface of the valve body outer peripheral portion 80a.
  • the first cylindrical valve body 81 and the second cylindrical valve body 82 are coaxially joined and accommodated coaxially with the valve body outer peripheral portion 80a. . Therefore, a plurality of pipelines 811, 812, 813 and pipelines 821, 822, 823 that define the fluid flow paths are formed, and a plurality of refrigerant flow paths are provided to form a desired refrigerant circuit. Can do.
  • the rotary flow path opening / closing valve 80 protrudes toward the inner peripheral surface of the valve body outer peripheral portion 80a on the outer peripheral side of the joint portion of the first cylindrical valve body 81 and the second cylindrical valve body 82.
  • a wall plate 80b is formed. Therefore, the connection openings 81a to 81d can be communicated with the outer peripheral surface 810, and the connection openings 82a to 82d can be communicated with the opening of the outer peripheral surface 820. Thereby, a desired refrigerant circuit can be constituted.
  • the insides of the first cylindrical valve body 81 and the second cylindrical valve body 82 communicate with each other. Therefore, the refrigerant flowing in from the connection openings 81a to 81d can flow out of the connection openings 82a to 82d, or the refrigerant flowing in from the connection openings 82a to 82d can flow out of the connection openings 81a to 81d to form a desired refrigerant circuit. .
  • connection openings 81a to 81d are arranged in a line in the circumferential direction
  • connection openings 82a to 82d are arranged in a line in the circumferential direction
  • connection opening 81a To 81d and connection openings 82a to 82d are arranged in two rows in the axial direction.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Multiple-Way Valves (AREA)

Abstract

L'invention concerne une soupape rotative d'ouverture/fermeture d'un circuit d'écoulement, la soupape pouvant utiliser un élément en vue de commuter un circuit d'écoulement de fluide frigorigène vers une pluralité de configurations, et présentant une faible consommation d'énergie. La soupape rotative d'ouverture/fermeture de circuit d'écoulement comprend : un corps cylindrique de soupape qui comprend une pluralité de premières ouvertures, et dans lequel circule un fluide frigorigène ; une pluralité de conduites formées à l'intérieur du corps cylindrique de soupape, et chacune a les deux extrémités reliées aux premières ouvertures ; une partie circonférentielle externe du corps de soupape, de forme cylindrique, recevant de manière coaxial le corps cylindrique de soupape ; et une pluralité de secondes ouvertures qui sont formées dans la partie circonférentielle externe du corps de soupape sont reliées à un circuit de fluide frigorigène, et le fluide frigorigène circule à travers elles. Le corps cylindrique de soupape est formé de telle sorte que les premières ouvertures et les secondes ouvertures sont en communication en raison de la rotation du corps cylindrique de soupape par rapport à la partie circonférentielle externe du corps de soupape.
PCT/JP2016/063021 2016-04-26 2016-04-26 Soupape rotative d'ouverture/fermeture de circuit d'écoulement Ceased WO2017187505A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/063021 WO2017187505A1 (fr) 2016-04-26 2016-04-26 Soupape rotative d'ouverture/fermeture de circuit d'écoulement

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Application Number Priority Date Filing Date Title
PCT/JP2016/063021 WO2017187505A1 (fr) 2016-04-26 2016-04-26 Soupape rotative d'ouverture/fermeture de circuit d'écoulement

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WO2017187505A1 true WO2017187505A1 (fr) 2017-11-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617348A (zh) * 2019-09-09 2019-12-27 包头稀土研究院 室温磁制冷机用换流阀及其室温磁制冷机
JP2022068705A (ja) * 2020-10-22 2022-05-10 本田技研工業株式会社 流路切換バルブ
CN115143306A (zh) * 2022-05-20 2022-10-04 美的集团(上海)有限公司 十二通阀、热管理系统及车辆
JP2023155199A (ja) * 2022-04-07 2023-10-20 ベルガー・ホールディング・ジ－エムビ－エイチ・アンド・シーオー・ケージー 暖房および／または冷房システムにおける流量調節用弁

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JPH05141817A (ja) * 1991-11-18 1993-06-08 Hamatetsuku:Kk 切換弁装置
JP2001082834A (ja) * 1999-09-08 2001-03-30 Samsung Electronics Co Ltd 冷暖房兼用空気調和機の冷媒の流路の切り替え装置
JP2013053724A (ja) * 2011-09-06 2013-03-21 Nippon Soken Inc 切替弁および冷却装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05141817A (ja) * 1991-11-18 1993-06-08 Hamatetsuku:Kk 切換弁装置
JP2001082834A (ja) * 1999-09-08 2001-03-30 Samsung Electronics Co Ltd 冷暖房兼用空気調和機の冷媒の流路の切り替え装置
JP2013053724A (ja) * 2011-09-06 2013-03-21 Nippon Soken Inc 切替弁および冷却装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617348A (zh) * 2019-09-09 2019-12-27 包头稀土研究院 室温磁制冷机用换流阀及其室温磁制冷机
JP2022068705A (ja) * 2020-10-22 2022-05-10 本田技研工業株式会社 流路切換バルブ
JP7374062B2 (ja) 2020-10-22 2023-11-06 本田技研工業株式会社 流路切換バルブ
JP2023155199A (ja) * 2022-04-07 2023-10-20 ベルガー・ホールディング・ジ－エムビ－エイチ・アンド・シーオー・ケージー 暖房および／または冷房システムにおける流量調節用弁
US12123506B2 (en) 2022-04-07 2024-10-22 Berger Holding GmbH & Co. KG Valve for flow regulation in a heating and/or cooling system
JP7659584B2 (ja) 2022-04-07 2025-04-09 ベルガー・ホールディング・ジ－エムビ－エイチ・アンド・シーオー・ケージー 暖房および／または冷房システムにおける流量調節用弁
CN115143306A (zh) * 2022-05-20 2022-10-04 美的集团(上海)有限公司 十二通阀、热管理系统及车辆

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