A distributor (100), a falling film evaporator and a refrigerating system. The distributor includes: a sprayer (110), the top of the sprayer being connected to a falling film evaporator inlet (230), and the bottom of the sprayer being provided with spray holes (111); and an orifice plate (120) disposed at a lower end of the sprayer and provided with multiple distribution holes (121), wherein a centrifugal gas-liquid separating element is disposed in the sprayer and is configured to separate a refrigerant entering the sprayer through the evaporator inlet into a gas phase and a liquid phase. In the distributor, the centrifugal gas-liquid separating element is disposed in the sprayer, so that a two-phase refrigerant entering the sprayer through the evaporator inlet can be better separated under dual effects of the gravity and the centrifugal force.

Disclosed are a process for operating a flashline heater and a flashline separation system. In the process and system, heat is supplied to the flashline heater by a first steam stage followed by a second steam stage. The steam pressure is controlled by a steam control system such that the pressure in the first steam stage is not equal to the pressure in the second steam stage. Also disclosed is a process for retrofitting a steam control system in a flashline separation system of an olefin polymerization system at least by changing the number of steam stages in the flashline separation system to include a first steam stage followed by a second steam stage, and changing the stream pressure control scheme such that the pressure in the first steam stage is independently controlled to be not equal to the pressure in the second steam stage.

The invention relates to an arrangement for a latent-heat exchanger chamber, usable in distillation devices, which comprises an evaporator in a capillary evaporation regime on the inner face thereof and a condenser in a capillary condensation regime on the outer face thereof, with a system for the dosed supply of liquid into microgrooves or micro undulations of the inner evaporator face, preventing the formation of thin films of water on the evaporator face, the arrangement achieving high latent-heat transfer coefficients.

The present invention relates to an evaporator of a working fluid for an OTEC plant, comprising an elongated evaporator body extending along a main axis, a bundle of evaporators transporting hot water and extending along the main axis, and a sprinkling system extending above the bundle of evaporators and suitable for sprinkling the working fluid in the liquid state onto the bundle of evaporators in order to evaporate this working fluid.

The evaporator body defines a bottom and an exhaust space for the gaseous working fluid between the bottom and the bundle of evaporators. The evaporator further comprises a damper system arranged in the exhaust space and configured to damp the drop of working fluid droplets in a non-evaporated liquid state after passing through the bundle of evaporators.

The present invention relates to a working fluid evaporator for an OTEC plant, comprising an evaporator body extending along a longitudinal axis, a bundle of evaporators transporting hot water and comprising a plurality of evaporation elements, a sprinkling system extending above the bundle of evaporators and a casing covering the bundle of evaporators and the sprinkling system, an evacuation area being formed between end columns of the evaporator elements and the casing. The evaporator further comprises a redistribution system configured to collect the working fluid in a liquid state in the evacuation area and direct it to interior evaporator elements.

The present invention relates to a working fluid evaporator for an OTEC plant, comprising an evaporator body extending along a longitudinal axis, a bundle of evaporators transporting hot water and comprising a plurality of evaporation elements, a sprinkling system extending above the bundle of evaporators and a casing covering the bundle of evaporators and the sprinkling system, an evacuation area being formed between end columns of the evaporator elements and the casing. The evaporator further comprises a redistribution system configured to collect the working fluid in a liquid state in the evacuation area and direct it to interior evaporator elements.

A device for purifying water by solar power is described. The device has bottom and top sections, each being half-cylinders contacting one another along a flat edge to provide an elongated cylinder. The bottom section has an evacuated area with an optically transparent bottom surface that light can pass through to heat a liquid tray in the top section. A side-gutter directs water that condenses on an interior surface of the top section to an output port for collection.

A device for purifying water by solar power is described. The device has bottom and top sections, each being half-cylinders contacting one another along a flat edge to provide an elongated cylinder. The bottom section has an evacuated area with an optically transparent bottom surface that light can pass through to heat a liquid tray in the top section. A side-gutter directs water that condenses on an interior surface of the top section to an output port for collection.

A vessel header includes lateral flow tubes arranged in a parallel configuration. The lateral flow tubes enter the vessel header through alternating vessel header penetrations with a single vessel header penetration per lateral flow tube. Each lateral flow tube has a perforated section within the vessel header having a non-circular cross-section having the shape of a circular sector, an elliptical sector, or an irregular quadrilateral. A method includes passing a molten polymer through the lateral flow tubes of the vessel header. The molten polymer exits the lateral flow tubes as strands through perforations in the lateral flow tubes within the vessel header. The method includes obtaining devolatilized polymer.

A vessel header includes lateral flow tubes arranged in a parallel configuration. The lateral flow tubes enter the vessel header through alternating vessel header penetrations with a single vessel header penetration per lateral flow tube. Each lateral flow tube has a perforated section within the vessel header having a non-circular cross-section having the shape of a circular sector, an elliptical sector, or an irregular quadrilateral. A method includes passing a molten polymer through the lateral flow tubes of the vessel header. The molten polymer exits the lateral flow tubes as strands through perforations in the lateral flow tubes within the vessel header. The method includes obtaining devolatilized polymer.