A rotary evaporator for accurately and quantitatively recovering multiple solvents or concentrating multiple samples at once is provided. At least two distillation flasks are included. The distillation flasks are connected in sequence and rotated along the same axis. A bracket is disposed at the lower part between the distillation flasks for support. Instead of one rotation axis, at least two axes are included. Each rotation axis is provided with at least one distillation flask. The number of condensers and the number of collecting flasks increase correspondingly with the number of distillation flasks. If the number of distillation flasks on one rotation axis is greater than 1, a connector is disposed between the condenser and a transmitter. The collecting flask can be changed into a collector with the function of accurately quantitating and discharging distillates. Each distillation flask may be connected to a concentrated liquid quantitative assembly.

Disclosed is a shell-and-tube heat exchanger type with a tube bundle and has a redistribution chamber connected to tubes of the tube bundle and to a duct. The duct extends between the redistribution chamber and the shell.

A method for producing heat transfer between two or more media and a device or system for carry out said method, usable for air conditioning a space, or any use that requires heat transfer between two or more media to be used for domestic, commercial or industrial use.

Provided is a condensation device capable of removing water vapor from a larger amount of gas without making a size larger than in related art. A condensation device 700 according to the present invention includes an outer cooling unit 720 including one or two or more inner tubes 722, an outer tube 724 located outside the one or two or more inner tubes 722, and a first flow path 726 through which a first cooling medium passes between the one or two or more inner tubes 722 and the outer tube 724.

A method and a device for the purification of gases from the degassing of polymer melts—in particular, for the continuous further processing to form stretched polymer films. In this case, the gas to be purified is fed from a vacuum zone of a plasticizing unit, via at least one vacuum or degassing line, to a vacuum separator with a gas inlet and a gas outlet in which condensible, separable by freezing, and/or re-sublimable substances are separated from the supplied and purified gas by means of a cooling arrangement, and the separated substances are removed from the vacuum separator. By means of a heating arrangement, the substances separated by means of the cooling arrangement are at least partially liquefied or softened in the vacuum separator and removed from the vacuum separator in particular by suction.

An on-line measurement system for aerosol precursors emitted from industrial sources has three parts: online measurement part, pipeline cleaning part and automatic control part. The system includes: a particulate filter, high temperature intake pipe, two detergent tanks, an air pump, a cooling water pump, two detergent pumps, a condenser, an impinger, a cooling water meter, a salinity meter, a liquid flow meter, a gas flow meter, nitrogen cylinders, connecting pipes, control valves, computer control program etc. The aerosol precursor concentration Cg emitted from industrial sources is measured in the online measurement section. After every measurement, the pipeline is cleaned by the pipeline cleaning part to remove organic and inorganic residual. The automatic control part is controlled by the computer through a controlling program to control the working process of the system. The system has small area occupation, low investment cost, simple maintenance, convenient transformation and high applicability.

Described are a high pressure carbamate condenser, urea plant, and urea production process. The high pressure carbamate condenser as described is of the shell-and-tube heat exchanger type with a tube bundle and has a redistribution chamber connected to tubes of the tube bundle and to a duct. The duct extends between the redistribution chamber and the shell.

Disclosed is a liquid chemical vapor recovery device, a wet stripping device, a photoresist stripping process and a method for manufacturing a thin film transistor-liquid crystal display using the same. The liquid chemical vapor recovery device comprises: an exhaust pipe for discharging a gas in a processing chamber for wet processing with a liquid chemical, the gas comprising a vapor of the liquid chemical; and a reflux pipe for refluxing the liquid chemical condensed in the exhaust pipe to a liquid chemical storage tank, the reflux pipe having an inlet connected to the exhaust pipe and an outlet connected to the liquid chemical storage tank, wherein, at least a part of the exhaust pipe positioned upstream of the inlet of the reflux pipe is formed as a pipe segment with a rugged inner surface.

A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus. The evaporator condenser apparatus includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger fluidly connected to the source fluid input and a product fluid output. The heat exchanger includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower fluidly connected to the evaporator condenser. The regenerative blower compresses steam, and the compressed steam flows to the evaporative condenser where compressed steam is transformed into product fluid. The fluid vapor distillation apparatus also includes a control system.

A condenser includes a fluid inlet in an upper manifold and a fluid outlet in a lower manifold. The condenser includes multiport tubes provided with a plurality of separate flow channels which are delimited by outer opposite side walls and internal intermediate walls extending between the outer opposite side walls of the tubes. The multiport tubes define a channel space between them. A plurality of cooling plates extend between the upper manifold and the lower manifold. The cooling plates are in thermal contact with the multiport tubes to receive a heat load from fluid in the flow channels. The cooling plates have outer edges which protrude out from the channel space and are directed away from the channel space.