Abstract: An electrochemical reaction device includes: a first reactor including a first room and a second room, the first room being configured to store a gas containing carbon dioxide or a first electrolytic solution containing carbon dioxide, and the second room being configured to store a second electrolytic solution containing water; a cathode disposed in the first room, the cathode being configured to reduce the carbon dioxide and thus produce a reduction product; an anode disposed in the second room, the anode being configured to oxidize the water and thus produce an oxidation product; a first pressure adjuster configured to adjust pressure in the first room; a temperature detector configured to detect a temperature in the first reactor to form a detection signal; and a controller configured to control the pressure adjuster in accordance with the detection signal from the temperature detector.

Abstract: An air conditioner includes: a casing including a bottom plate; a refrigerant flow path unit housed inside the casing, and having an interior in which a refrigerant flow path is formed; a compressor installed on the bottom plate; and a shutoff valve that opens and closes to allow and block a flow of a refrigerant. The refrigerant flow path unit is supported at a distance from the bottom plate by a fixed-side member other than the compressor. The fixed-side member includes either one of: a mounting plate to which the shutoff valve is fixed, or a support plate to which the mounting plate is fixed.

Abstract: A heat source unit includes: a compressor; refrigerant pipes for a flow of a gas refrigerant having been discharged from the compressor and a flow of a gas refrigerant to be sucked into the compressor; a refrigerant flow path module connected to the refrigerant pipes; and a casing accommodating the compressor, the refrigerant pipes, and the refrigerant flow path module; in which the refrigerant flow path module includes a module body having an upper surface and a lower surface, having a vertical length less than a horizontal length, and provided therein with a flow path for a refrigerant, the refrigerant flow path module is disposed above and apart from a bottom part of the casing, and the refrigerant pipes include a first pipe and a second pipe each communicating with the flow path in the module body and supporting the refrigerant flow path module.

Abstract: A refrigerant flow path module provided with a refrigerant flow path inside includes a first plate, a second plate that is overlapped on the first plate, a refrigerant pipe that contains copper and is attached to the first plate, a brazing material that contains copper and joins facing surfaces of the first plate and the second plate to each other, and a storage that stores the brazing material in excess.

Abstract: A method for manufacturing a refrigerant flow path module including a first plate and a second plate stacked on each other and including a refrigerant flow path inside includes arranging a brazing material between the first plate and the second plate, fastening the first plate and the second plate between which the brazing material is disposed with a fastening member, and heating the first plate and the second plate fastened by the fastening member in a furnace.

Abstract: A refrigeration apparatus includes: a refrigerant flow path unit that comprises plates stacked together, and in which a refrigerant flow path is disposed; first components that are functional components each including a driving unit; second components other than functional components; and a casing accommodating the refrigerant flow path unit, and the first and second components. The first components and the second components constitute a refrigerant circuit. The refrigerant flow path unit: has a first surface and a second surface on both sides in a normal direction of the plates, and is disposed in the casing in a posture with the first surface and the second surface being upstanding. The first components are connected to the first surface. The second components are connected to the second surface. The refrigerant flow path unit includes joint tubes that connect pipes linked to the second components.

Abstract: A refrigerant flow path unit includes: a unit body that includes plates that are laminated together, and has an interior in which a refrigerant flow path is formed; a refrigerant pipe; and a first brazing filler metal that joins the unit body to the refrigerant pipe. The plates of the unit body include: a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction. The refrigerant pipe is inserted into the first opening and the second opening.

Abstract: A refrigerant flow path unit includes: a unit body that includes plates that are laminated together, and has an interior in which a refrigerant flow path is formed; a refrigerant pipe; and a first brazing filler metal that joins the unit body to the refrigerant pipe. The plates of the unit body include: a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction. The refrigerant pipe is inserted into the first opening and the second opening.

Abstract: An air conditioner includes: a casing including a bottom plate; a refrigerant flow path unit housed inside the casing, and having an interior in which a refrigerant flow path is formed; a compressor installed on the bottom plate; and a shutoff valve that opens and closes to allow and block a flow of a refrigerant. The refrigerant flow path unit is supported at a distance from the bottom plate by a fixed-side member other than the compressor. The fixed-side member includes either one of: a mounting plate to which the shutoff valve is fixed, or a support plate to which the mounting plate is fixed.

Abstract: A refrigeration apparatus includes: a refrigerant flow path unit that comprises plates stacked together, and in which a refrigerant flow path is disposed; first components that are functional components each including a driving unit; second components other than functional components; and a casing accommodating the refrigerant flow path unit, and the first and second components. The first components and the second components constitute a refrigerant circuit. The refrigerant flow path unit: has a first surface and a second surface on both sides in a normal direction of the plates, and is disposed in the casing in a posture with the first surface and the second surface being upstanding. The first components are connected to the first surface. The second components are connected to the second surface. The refrigerant flow path unit includes joint tubes that connect pipes linked to the second components.