A device for separating liquid from gas including: a fluid inlet configured to receive a fluid that includes a liquid and a gas; a gas outlet; a deflector positioned between the fluid inlet and the gas outlet, the deflector obstructing a path from the fluid inlet to the gas outlet; and a liquid channel adjacent to a liquid outlet; wherein the deflector is configured to deflect the liquid to the liquid channel; wherein the liquid deflected to the liquid channel exits the device through the liquid outlet; and wherein the gas flows around the deflector and exits the device through the gas outlet.

Provided is an evaporator capable of, in a centrifugal chiller using a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG, preventing dry-out of a group of heat transfer pipes in an evaporator to increase heat transfer performance and to suppress reduced efficiency due to carryover of the low pressure refrigerant in a liquid phase to a turbo compressor side and a centrifugal chiller provided with same. An evaporator (7) comprises a pressure container (21) into which a refrigerant is compressed and introduced, a refrigerant inlet (22) provided on a lower portion of the pressure container, a refrigerant outlet (23) provided on an upper portion of the pressure container, a group of heat transfer pipes (25) that exchange heat with the refrigerant through the interior of the pressure container and a tabular refrigerant distribution plate (26) installed between the refrigerant inlet and the group of heat transfer pipes and in which refrigerant flow holes (26a) are drilled. The surface ratio of the refrigerant flow holes per unit area on the refrigerant distribution plate in an area (A1) corresponding to a position near the upstream side of the group of heat transfer pipes is greater than that in another area (A2).

The present application provides a pre-separator for use with a flow of steam entering a moisture separator reheater. The pre-separator may include a neck, an internal baffle, a wall, a first pathway defined between the neck and the internal baffle, and a second pathway defined between the internal baffle and the wall. The first pathway and the second pathway create a Coanda effect for the flow of steam entering the moisture separator reheater.

In one aspect, the invention can be a heat exchanger comprising: a shell having an inner surface forming a cavity, the shell comprising an inlet for introducing the shell-side liquid into the cavity and an outlet for allowing the vapor to exit the cavity; a tube bundle comprising a plurality of tubes for carrying a tube-side fluid located in the cavity and having a longitudinal axis; a shroud circumferentially surrounding the tube bundle and positioned between the tube bundle and the inner surface of the shell so that an annular space exists between the shroud and the inner surface; an opening in a bottom portion of the shroud that forms a passageway between the annular space and the tube bundle; and an opening in a top portion of the shroud that forms a passageway between the annular space and the tube bundle.

In one aspect, the invention can be a heat exchanger comprising: a shell having an inner surface forming a cavity, the shell comprising an inlet for introducing the shell-side liquid into the cavity and an outlet for allowing the vapor to exit the cavity; a tube bundle comprising a plurality of tubes for carrying a tube-side fluid located in the cavity and having a longitudinal axis; a shroud circumferentially surrounding the tube bundle and positioned between the tube bundle and the inner surface of the shell so that an annular space exists between the shroud and the inner surface; an opening in a bottom portion of the shroud that forms a passageway between the annular space and the tube bundle; and an opening in a top portion of the shroud that forms a passageway between the annular space and the tube bundle.

A boiler includes a vessel having vertically-extensive walls defining multiple vertically-extensive channels. The vessel includes a liquid supply connection communicating with liquid inlets adjacent a lower end of each of the channels and a vapor discharge communicating with liquid outlets adjacent the upper end of each of the channels. The boiler also includes a set of electrodes positioned within the channels, with some of the electrodes in each channel being located at different elevations. An electrical power supply of the boiler has at least two poles and is operable to supply different electrical potentials to the different poles. A circuit is operable to selectively connect the electrodes to and selectively disconnect electrodes from the poles in multiple different connection schemes, each of which involves electrical current flowing between the connected electrodes along a current path through liquid in at least one of the channels.

A steam generator including a heating chamber for heating water to generate steam, with a sidewall of the heating chamber being a heating element. The steam generator may be installed in an appliance, and may be removably installed in the appliance.

A steam generator including a heating chamber for heating water to generate steam, with a sidewall of the heating chamber being a heating element. The steam generator may be installed in an appliance, and may be removably installed in the appliance.

A steam generator (1), in particular for an oven, comprising a tank (3) provided with an inlet pipe (4) suitable for introducing liquid into the tank (3) and an outlet pipe (5) suitable for releasing steam from the tank (3); at least one heating element (2) adapted to heat the liquid to produce the steam; wherein the tank (3) comprises: a first chamber (31); a second chamber (32); a third chamber (33), proximal to the outlet pipe (5); wherein the first chamber (31) and the second chamber (32) are adapted to contain the liquid introduced by means of said inlet pipe (4); wherein a first partition wall (41) is provided, which partially separates the first chamber (31) and the second chamber (32) from each other; wherein a second partition wall (42) is provided, which separates at least partially both the first chamber (31) and the second chamber (32) from the third chamber (33); wherein a first passage (21) is provided which allows the steam to pass from the first chamber (31) to the second chamber (32); wherein a second passage (22) is provided which allows the steam to pass from the second chamber (32) to the third chamber (33); wherein a third passage (23) is provided which allows the liquid to pass between the second chamber (32) and the first chamber (31), near the bottom (6) of the tank (3).

A steam generator (1), in particular for an oven, comprising a tank (3) provided with an inlet pipe (4) suitable for introducing liquid into the tank (3) and an outlet pipe (5) suitable for releasing steam from the tank (3); at least one heating element (2) adapted to heat the liquid to produce the steam; wherein the tank (3) comprises: a first chamber (31); a second chamber (32); a third chamber (33), proximal to the outlet pipe (5); wherein the first chamber (31) and the second chamber (32) are adapted to contain the liquid introduced by means of said inlet pipe (4); wherein a first partition wall (41) is provided, which partially separates the first chamber (31) and the second chamber (32) from each other; wherein a second partition wall (42) is provided, which separates at least partially both the first chamber (31) and the second chamber (32) from the third chamber (33); wherein a first passage (21) is provided which allows the steam to pass from the first chamber (31) to the second chamber (32); wherein a second passage (22) is provided which allows the steam to pass from the second chamber (32) to the third chamber (33); wherein a third passage (23) is provided which allows the liquid to pass between the second chamber (32) and the first chamber (31), near the bottom (6) of the tank (3).