In a radiating structure for a main spindle having a tapered bore formed at a distal end of the main spindle, into which a tapered portion of a tool holder is mounted, a key fixing member provided with a drive key is fixed to the distal end of the main spindle, and the drive key is fit into a key groove formed in the tool holder. This configuration prevents a phase shift in rotation direction of the tool holder arising from rotation of the main spindle. A radiating member which exchanges heat with an ambient atmosphere is provided to the key fixing member provided with the drive key.

A rotary cooler is provided, consisting of a plurality of transport tubes for transporting material to be cooled, wherein the plurality of transport tubes are arranged about an axis of rotation and are adapted to be filled jointly via a filling region with material to be cooled, characterized in that each transport tube is arranged substantially concentrically in a cooling tube in which a cooling medium flows and cools the material to be cooled via the wall of the transport tube. Furthermore, a method for operating said rotary cooler is provided.

There is provided a heat exchanger adapted to exchange heat between a first fluid and a second fluid. The heat exchanger comprises an outer tubular body, an inner body, a first inlet, a first outlet, a second inlet and a second outlet. The outer tubular body has an inner surface. The inner body is arranged inside the outer tubular body and has an outer surface facing the inner surface of the outer tubular body, leaving free a gap between the inner surface of the outer tubular body and the outer surface of the inner body. The first inlet and the first outlet are arranged to provide a first flow path for the first fluid from the first inlet to the first outlet via a first channel and via a second channel. The second inlet and the second outlet are arranged to provide a second flow path from the second inlet to the second outlet for the second fluid in the gap between the inner surface of the outer tubular body and the outer surface of the inner body. The outer tubular body comprises the first channel. The inner body comprises the second channel. The inner body and the second channel are rotatable relative to the outer tubular body and the first channel.

A heat exchanger having an inlet tube, a chamber section, an outlet tube, and a medium directing member disposed within the chamber section. The medium directing member is provided with a first angled face, a second angled face, a first lateral wall, and a second lateral wall to obtain a desired heat exchange medium flow pattern within the chamber section, which generally comprise of two semi-circular symmetrical flow patterns, along with other flow alterations within the chamber section that facilitate improved heat transfer effectiveness. The medium directing member is provided with a first extension member and a second extension member as a means to couple the medium directing member within the chamber section, to obtain desired heat transfer between the chamber section and the medium directing member, as well as to allow a desired heat exchange medium flow pattern to transpire within the chamber section.

A method for separating a dissolved product from a liquid is disclosed. A carrier liquid is cooled in a direct-contact exchanger, the direct-contact exchanger using a liquid coolant to cool the carrier liquid. The carrier liquid comprises a dissolved product. The carrier liquid and the liquid coolant are substantially immiscible. A portion of the dissolved product is condensed, frozen, deposited, desublimated, or a combination thereof out of the carrier liquid as a solid product at a liquid-liquid interface between the liquid coolant and the carrier liquid. The solid product is entrained in the carrier liquid, the liquid coolant, or a combination thereof. The solid product is separated from the carrier liquid, the liquid coolant, or a combination thereof.

A process for treating a fluid includes: a step of introducing fluid to treat into a chamber of a dryer, a step of drying the fluid in the chamber including a first phase during which a weight of the chamber reduces and when the weight of the chamber reaches a lower threshold or a rate of variation of the weight of the chamber is less than a first predefined value, the drying step includes a step of complementary filling of the chamber until the weight of the chamber reaches an upper threshold and a second phase during which the weight of the chamber decreases and when the rate of variation of the weight is less than a second predefined value, the process includes a step of extracting a solid residue in powder form. The invention also concerns an installation for implementing the process.

A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. A second-fluid inlet is coupled to either the first end-tank or the second end-tank and configured to receive a fluid into the microchannel evaporator and a second-fluid outlet is coupled to either the first end-tank or the second end-tank and configured to expel the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels includes at least one bend along a length thereof.

A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. A second-fluid inlet is coupled to either the first end-tank or the second end-tank and configured to receive a fluid into the microchannel evaporator and a second-fluid outlet is coupled to either the first end-tank or the second end-tank and configured to expel the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels includes at least one bend along a length thereof.

A cooling device includes an immersion tank that stores a refrigerant liquid, and a cooling pipe that is disposed on a peripheral wall of the immersion tank, at least a portion of which is exposed from the peripheral wall to an inside of the immersion tank, and through which cooling water flows.

Systems and methods described herein are directed to rotary heat exchangers configured to transfer heat to a heat transfer medium flowing in substantially axial direction within the heat exchangers. Exemplary heat exchangers include a heat conducting structure which is configured to be in thermal contact with a thermal load or a thermal sink, and a heat transfer structure rotatably coupled to the heat conducting structure to form a gap region between the heat conducting structure and the heat transfer structure, the heat transfer structure being configured to rotate during operation of the device and flow a heat transfer medium in a substantially axial direction through the heat transfer structure. In example devices heat may be transferred across the gap region from a heated axial flow of the heat transfer medium to a cool stationary heat conducting structure, or from a heated stationary conducting structure to a cool axial flow of the heat transfer medium.