Daikin Industries Patente

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Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

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A plate structure (50, 60) has: a first surface (52a, 62a) which is a surface closer to a heat exchanger body (B) in a first direction; a second surface (52b, 62b) which is a surface on a side opposite to the first surface (52a, 62a) in the first direction; and a third surface (52c, 62c) which is a peripheral surface extending from the first surface (52a, 62a) to the second surface (52b, 62b). The first surface (52a, 62a) is provided with a heat-transfer-tube-side connection portion (53, 63) to which a heat transfer tube (42) is connected. The first surface (52a, 62a) or the third surface (52c, 62c) is provided with a pipe-side connection portion (54, 55, 64, 65) to which a refrigerant pipe (71, 72, 73) is connected.

A heat source unit (20) has a machine chamber (S1) in which at least a compressor (30) is disposed. A sound insulation member (60) is fixed to at least part of a plate member (27b, 27c, 28) that defines the machine chamber (S1), and a space (61) is provided between the plate member (27b, 27c, 28) and the sound insulation member (60).

The present disclosure provides a method for producing non melt-processible polytetrafluoroethylene, the method comprising suspension-polymerizing tetrafluoroethylene in the presence of a polymerization initiator and an aqueous medium in a reactor to prepare a composition containing the aqueous medium and the non melt-processible polytetrafluoroethylene, wherein after a polymerization terminator is fed to the reactor, or after the tetrafluoroethylene remaining in the reactor is removed from the reactor, a polymerization inhibitor for inhibiting polymerization of residual radicals is fed to the reactor.

A compressor (30), an accumulator (25), and a sound-insulating member (60) are disposed in an internal space (S1) of a casing (70). The sound-insulating member (60) defines a housing space (65) for housing the compressor (30) and the accumulator (25) and covers the compressor (30) and the accumulator (25). A gap is formed between an outer surface of the sound-insulating member (60) and an inner surface of the casing (70). A length of the gap is 5 mm or more and 210 mm or less.

An air conditioning system includes: a temperature adjustment section configured to adjust a temperature of a first heat medium and to adjust a temperature of a second heat medium to a target temperature by exchanging heat between the first heat medium and the second heat medium; a plurality of thermal appliances supplied with the second heat medium from the temperature adjustment section and each configured to cool or heat a space; a plurality of flow regulators respectively connected to the plurality of thermal appliances, and configured to control flow rates of the second heat medium flowing through the plurality of connected thermal appliances such that an indoor temperature of a target space reaches a set temperature; and a controller configured to monitor load factors of the plurality of flow regulators, the load factors corresponding to the flow rates of the second heat medium, and control the target temperature such that a load factor of at least one flow regulator among the plurality of flow regulators is greater than or equal to a target load factor.

Provided is a method for producing a fluoropolymer, the method comprising polymerizing a fluoromonomer in the presence of a polymerization initiator and an aqueous medium in a reactor to prepare a composition containing the aqueous medium and the fluoropolymer, and bringing the composition into contact with a gas containing at least oxygen.

A casing (70) has an opening (70a). A compressor (30) and a water heat exchanger (15) are disposed in an internal space (S1) of the casing (70). A fluid pipe (17) is inserted through the opening (70a) of the casing (70) and connected to the water heat exchanger (15). A support (18) is disposed in the internal space (S1) of the casing (70) and supports the fluid pipe (17).

Provided are an air filter medium in which occurrence of mold is suppressed, a method for using an air filter medium, and an air treatment apparatus. The air filter medium includes a porous membrane having a surface mean height Rc of 6 µm or more and a water contact angle of 90 degrees or more on a membrane surface.

A plate stack (50, 60) of an indoor heat exchanger is adjacent to a heat exchange portion (B) in a first direction, and includes a first plate portion (50A, 60A) having one or more of plates (52, 62), and a second plate portion (50B, 60B) which has one or more of plates (52, 62) and which is disposed on a surface of the first plate portion (50A, 60A) that is opposite to a surface facing the heat exchange portion (B), the plate stack (50, 60) has a step portion (X) in a peripheral portion of a first surface (501, 601) facing the heat exchange portion (B), and the step portion (X) is formed by the first plate portion (50A, 60A) and the second plate portion (50B, 60B).

An indoor heat exchanger is adjacent to a heat exchange portion (B) in a first direction, and includes a first plate portion (50A, 60A) having one or more of plates (52, 62), and a second plate portion (50B, 60B) which has one or more of plates (52, 62) that is different in shape from the plates (52, 62) of the first plate portion (50A, 60A) and which is disposed on a surface of the first plate portion (50A, 60A) that is opposite to a surface facing the heat exchange portion (B), the plate stack (50, 60) has a step portion (X) in a peripheral portion of a surface opposite to a surface facing the heat exchange portion (B), and the step portion (X) is formed by the first plate portion (50A, 60A) and the second plate portion (50B, 60B).

A heat exchanger (13) includes a first member (41), a second member (42), and a latch (43). The first member (41) is provided with a first hole (41a) and is made of aluminum. The second member (42) is provided with a second hole (42a) and is made of aluminum. The latch (43) penetrates the first hole (41a) and the second hole (42a). The latch (43) is fixed to the first member (41) and the second member (42). The latch (43) is made of an aluminum alloy containing manganese by 1.5% or less and copper by 1.0% or less.

An air conditioner (1) includes a refrigerant circuit (6) and a control device (130). The refrigerant circuit (6) includes a compressor (23), a radiator (64), an expansion valve (63), and an evaporator (24), and performs a refrigeration cycle for executing a heating operation to heat an indoor space by compressing a refrigerant to a critical pressure (Pc) or more. The control device (130) controls the refrigerant circuit (6). The control device (130) controls the expansion valve (63) to adjust a refrigerant temperature (TE) at an outlet (E) of the radiator (64), and controls a high pressure (Ph) of the refrigerant circuit (6) based on a temperature difference (ΔTR) between an indoor temperature (TR) and a target indoor temperature (TRO).

A heat exchanger unit (150) includes a first heat exchange portion (50), a second heat exchange portion (55), and a plate structure (100). The first heat exchange portion (50) has a plurality of first fins (52) and a plurality of first heat transfer tubes (51). The second heat exchange portion (55) has a plurality of second fins (57) and a plurality of second heat transfer tubes (56). The plate structure (100) is joined to the first heat transfer tubes (51) and the second heat transfer tubes (56). A first flow path (121) connecting the first heat transfer tubes (51) to each other and a second flow path (122) connecting the second heat transfer tubes (56) to each other are formed inside the plate structure (100).

A hot water supply air-conditioning system includes an outdoor unit that includes a compressor configured to compress a first heat medium, and is configured to supply the first heat medium; a hot water supply unit configured to generate hot water using the first heat medium supplied from the outdoor unit; an indoor unit configured to perform air conditioning using the first heat medium supplied from the outdoor unit; a shutoff unit configured to shut off the first heat medium flowing into the indoor unit; and a controller configured to, in a case in which the first heat medium leaks in the indoor unit, perform control to shut off the first heat medium flowing into the indoor unit using the shutoff unit, and continue operation of the compressor to continue supply of the first heat medium from the outdoor unit to the hot water supply unit.

In a bidirectional communication among multiple wearable devices, a desired audio picked up by one of the wearable devices is transmitted to another wearable device. In a method according to an embodiment of the present disclosure for bidirectionally communicating sounds between a first wearable device and a second wearable device, the first wearable device including a first microphone, a first storage, and a first speaker, the second wearable device including a second microphone, a second storage, and a second speaker, and the first wearable device being configured to capture, using the first microphone a sound that is output from the second speaker or a sound arriving from a direction of a head of a wearer of the second wearable device, the method includes: a step of recording, by the first wearable device, in the first storage a sound arriving from a direction of a head of a wearer of the first wearable device at a higher level than sounds arriving from other directions; and a step of transmitting, by the first wearable device, audio data of the recorded sound to the second wearable device.

The indoor heat exchanger includes: a heat exchange section (40A, 40B) including a fin (41) and a heat transfer tube (42); a plate structure (50, 60) to which the heat transfer tube (42) is connected and which has a refrigerant passage (51, 61) formed therein; and a pipe communicating with the heat transfer tube (42) or the refrigerant passage (51, 61). A temperature sensor (70) configured to sense a temperature of a refrigerant is provided on the pipe.

A heat source unit includes: a casing (70); a compressor (30) disposed inside the casing (70) and configured to compress a refrigerant; an air-impermeable sound insulation member (60) disposed inside the casing (70) and covering the compressor (30) to define a first space (S1) that houses the compressor (30); and a first communication passage (41) allowing a lower part of the first space (S1) and a second space (S2) between the sound insulation member (60) and the casing (70) to communicate with each other.

A power system includes: a DC/DC converter configured to allow connection of a DC power source; a grid-connected inverter; and a DC link configured to connect the DC/DC converter and the grid-connected inverter. Within a half-cycle of an AC-side grid voltage of the grid-connected inverter, a voltage of the DC link is adjusted in accordance with a DC load connectable to the DC link.

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