A heat exchanger includes: a gas-refrigerant pipe; a header connected to the gas-refrigerant pipe; and heat transfer tubes connected to the header. The header includes: a first plate member; and a second plate member that is stacked on the first plate member in a plate-thickness direction. The first plate member includes a first opening that constitutes an internal space of the header. The second plate member includes a second opening that, together with the first opening, constitutes the internal space of the header. The internal space of the header communicates with the heat transfer tubes. A first direction is perpendicular to both the plate-thickness direction and a direction in which the heat transfer tubes are arranged. A width of a part of the first opening in the first direction is different from a width of the second opening in the first direction.

A refrigerator based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, wherein an air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurized gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.

An air conditioner based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, a refrigerant includes at least one of R600A, R417A, R410C, or R407C, and a depressurized gas includes at least one of hydrogen or helium. An air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurized gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.

A refrigeration apparatus based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, wherein an air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurization gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.

A heat exchanger includes: a gas-refrigerant pipe; a header connected to the gas-refrigerant pipe; and heat transfer tubes connected to the header. The header includes: a first plate member; and a second plate member that is stacked on the first plate member in a plate-thickness direction. The first plate member includes a first opening that constitutes an internal space of the header. The second plate member includes a second opening that, together with the first opening, constitutes the internal space of the header. The internal space of the header communicates with the heat transfer tubes. A first direction is perpendicular to both the plate-thickness direction and a direction in which the heat transfer tubes are arranged. A width of a part of the first opening in the first direction is different from a width of the second opening in the first direction.

A stopper includes a filtering unit that is housed in an interior of a liquid receiver main body and through which a refrigerant passes, a fixed portion that includes on an outer peripheral face thereof a screw portion that is screwed into an inner peripheral face of the liquid receiver main body, a sealing member that is brought into contact with the inner peripheral face of the liquid receiver main body, thereby preventing a leakage of a refrigerant to the fixed portion from between the filtering unit and the liquid receiver main body, and a movable connection portion that is provided between the filtering unit and the fixed portion and links the filtering unit to the fixed portion in such a way that the filtering unit is not caused to follow a rotation of the fixed portion, and in such a way that the filtering unit is caused to follow an axial direction movement of the fixed portion.

A condenser (100), comprising a shell (112), an inlet pipe (120), and an anti-impact plate (204). The shell (112) has an accommodating cavity (202). The inlet pipe (120) is a circular pipe having a gradually increasing inner diameter from the inlet to the outlet. The inlet pipe (120) is arranged to pass through the upper end of the shell (112), the outlet of the inlet pipe (120) being accommodated in the accommodating cavity (202). The anti-impact plate (204) is accommodated in the accommodating cavity (202), and the anti-impact plate (204) is positioned below the outlet of the inlet pipe (120). There is a gap between the anti-impact plate (204) and the outlet through which fluid flowing from the outlet can flow. The condenser (100) can reduce the friction loss and local resistance of the refrigerant gas flowing into the inlet pipe (120), such that the dynamic pressure of the refrigerant gas entering the condenser (100) is partially converted into static pressure, and reduce the static pressure loss of the refrigerant gas entering the cylinder from the inlet, thereby increasing the condensing pressure of the refrigerant gas in the condenser (100) to enhance the heat exchange performance.

A heat exchanging module (1) comprising a heat exchanger (2), a frame (4) and a bottle (6), the heat exchanger (2) being attached to the frame (4), the bottle (6) being attached to the heat exchanger (2) by a first attachment mean (8) at a first portion (60) of the bottle (6), the bottle (6) being attached to the frame (4) with a second attachment mean (10) located at a second portion (62) of the bottle (6).

A cross-connected refrigeration system includes a first refrigeration subsystem and a second refrigeration subsystem that are fluidly coupled by a header, each of the first refrigeration subsystem and the second refrigeration subsystem including a refrigeration loop including a compressor, a condenser, an expansion device, and an evaporator, and a heating loop including an electrically-controlled valve, and the evaporator, and a header connection that connects the refrigeration loops and the heating loops of the first refrigeration subsystem and the second refrigeration subsystem to a common header, respectively. The compressor in the first refrigeration subsystem is selectively deactivated and the electrically-controlled valve in the first refrigeration subsystem is selectively opened such that compressed gas from the compressor in the second refrigeration subsystem enters the heating loop of the first refrigeration subsystem and heats the evaporator of the first refrigeration subsystem.

A cross-connected refrigeration system includes a first refrigeration subsystem and a second refrigeration subsystem that are fluidly coupled by a header, each of the first refrigeration subsystem and the second refrigeration subsystem including a refrigeration loop including a compressor, a condenser, an expansion device, and an evaporator, and a heating loop including an electrically-controlled valve, and the evaporator, and a header connection that connects the refrigeration loops and the heating loops of the first refrigeration subsystem and the second refrigeration subsystem to a common header, respectively. The compressor in the first refrigeration subsystem is selectively deactivated and the electrically-controlled valve in the first refrigeration subsystem is selectively opened such that compressed gas from the compressor in the second refrigeration subsystem enters the heating loop of the first refrigeration subsystem and heats the evaporator of the first refrigeration subsystem.