166results about "Evaporators with horizontal tubes" patented technology

A desalination apparatus capable of obtaining fresh water stably at low cost by utilizing low-temperature waste, wherein the desalination apparatus including a heat exchanger 92 cooperating with an evaporation can 60 so as to subject a low-temperature waste heat 11 and raw water 62 in the evaporation can 60 to heat exchange and generate water vapor 63 in the evaporation can 60; a condenser 98 cooperating with a raw water tank 72 so as to receive the water vapor 63 from the evaporation can 60, cool the water vapor 63 by subjecting the water vapor 63 and raw water 71 in the raw water tank 72 to heat exchange and obtain distilled water 76; a distilled water tank for storing the distilled water 76; vacuum means for evacuating the evaporation can 60 and depressurizing the inside thereof so as to promote generation of water vapor 63 in the evaporation can 60; and raw water supply means for supplying raw water to the evaporation can.

A zero discharge process for separating sludge and salt from desulfurization wastewater includes a pretreatment process, a membrane treatment process and an evaporative crystallization process; in the pretreatment process, the desulfurization wastewater enters a raw water tank, an aeration fan introduces compressed air into the raw water tank, and the wastewater is lifted to first-stage reaction and clarification by a raw water pump; in the membrane treatment process, the incoming wastewater is first filtered by ultrafiltration, then enters a pH adjustment tank, and is pumped into a nanofiltration membrane separation system and a reverse osmosis membrane separation system; in the evaporative crystallization process, the incoming wastewater is first subjected to two-stage preheating, then enters a degasser, and finally enters an evaporative concentration system and a crystallization system.

A liquid to gas converter to convert liquids (1) to gas (2) that can include a liquid pressurization element (3), a liquid preheating element (5), and a nozzle (10) to disperse liquids into energy (7) generated by an energy source (8). The gas to liquid converter can be located inside an enclosure (17) and substances dissolved in the liquid can accumulate as solids (13) on deposition surface (12) of the enclosure as the liquid (1) converts to gas Cis (2). Condensation of a portion of the gas (2) generated can be combined with the solids (13) for continuous removal of such solids (13) from the enclosure (17). A gas expansion compensator can generate a pressure gradient (24) to move the volume of gas generated from the liquid from the enclosure (17).

A method of operating an evaporator is described. In evaporator feed water, a Taylor bubble is developed which has an outer surface including a thin film in contact with an inner surface of an outer wall of an evaporator tube. The Taylor bubble is heated as it rises within the evaporator tube so that liquid in the thin film transitions into vapor within the bubble.

The solar heating, distilling, and pasteurizing system of this invention comprises an integrated distillation column-reflector-bracket assembly, a heat storage system of composite construction, and at least one evacuated glass solar collector having selective absorption. The distillation column subassembly is filled with the fluid medium to be boiled which flows into the solar vacuum tube collectors where an evaporation process takes place. A float valve mechanism mounted to the frame automatically maintains the correct liquid level inside the distillation column. The height of float valve mechanism is adjustable by means of an adjustable float bracket. The distillation column subassembly collects and concentrates the steam or vapor generated inside the attached evacuated glass solar collector tubes. The column also separates the vapor from the boiling liquid medium and conducts the vapor into a heat and distilled fluid storage system. The reflector-bracket subassembly has a reflecting panel made from at least one sheet of reflective material typically flat or formed into a plurality of substantially parallel linear troughs shaped to concentrate solar radiation ideally. This reflector also acts as a means of further stress and strain distribution and dissipation into the structural elements of the bracket subassembly.

A point of use water purification unit for continuously and completely purifying water at all point of use for removing all chemicals, killing all microorganisms; the device having a computer monitored and controlled system for degassing, super heating and exploding water into a vacuum chamber, condensing the steam in a counter current cold brine apparatus and stored in a holding tank.

The distiller includes an exchanger (6) of tubes (7) which fill with the liquid to be treated, means (14) of heating, means (23) for compressing the steam from evaporation of the liquid, means (24) for feeding the compressed steam around the tubes (7) and means (27, 28) for inducing turbulence into the liquid, preferably by making the compressed steam bubble inside it. The method includes heating the liquid and supplying it to the tubes of the exchanger, compressing the resulting steam and bringing it into contact with the exterior of the tubes. The equipment uses a distiller such as that described. The invention permits treatment of sewage and other liquids by distillation, with minimum energy consumption and in a small space.

An apparatus for generating purified liquid from an input liquid, comprises, an evaporation chamber, wherein the evaporation chamber is flooded with the input liquid; and a condensation chamber having channels, wherein the channels are disposed in the input liquid, wherein liquid-saturated gases are generated from the input liquid in the evaporation chamber, wherein the liquid-saturated gases are guided into a first end of the channels, and wherein the purified liquid is outputted at a second end of the channels.

A heat exchanger that is constructed with a heat exchanger shell having inlet and outlet plenums and fluid inlet and outlet ports, and a tube sheet construction disposed in the heat exchanger shell. The tube sheet construction includes at least two separate tube sheets and a plurality of tubes that extend between the separate tube sheets. Each tube sheet includes at least two planar tube sheet segments and an interstitial layer disposed between the at least two tube sheet segments, and at least one sensor element supported by each of the interstitial layers. A control monitor controls flow through the shell by a feedback control from the sensor to an inlet control valve and / or a stimulus device excites the media layer.

A vapor compression distillation system (10) is provided and includes a fluid inlet (12) for receiving a fluid, a fluid outlet (14) for a distillate that has been distilled from the fluid, a heat exchanger (16) connected to the fluid inlet (12) and the fluid outlet (14) to transfer heat from the distillate to the fluid; and an integrated motor / compressor unit (18) connected to the heat exchanger (16) to receive vaporized distillate therefrom and to supply pressurized distillate thereto. The system 10 may further include a coolant system (20) connected to the integrated motor / compressor (18) to supply a coolant flow thereto. The system (10) may also include an air oil mist system (22) that is connected to the integrated motor / compressor unit (18) to supply an air oil mist thereto for bearing lubrication and cooling.

The invention discloses a falling film evaporator with gas-liquid separating and membrane-distributing functions, which comprises at least two layers of film distributors with a gas-liquid separation function, wherein the first layer of film distributor is connected with a refrigerant inlet pipe, the second layer of film distributor is positioned below the first layer of film distributor, and at least one group of exhaust pipes are arranged between the second layer of film distributor and the first layer of film distributor. The invention has the advantages that: at least two layers of film distributors are arranged in the horizontal pipe falling film evaporator, a refrigerant is firstly subjected to effective gas-liquid separation and uniformly distributed on the outer walls of the exhaust pipes in the evaporator, thus the influence on heat exchange due to the gas phase in the refrigerant can be avoided, phenomena of local aggregation and local dryness due to nonuniform distribution of the refrigerant in the exhaust pipes can be effectively avoided, the heat exchange efficiency is effectively increased, and the purpose of saving energy is achieved.

Evaporator apparatus (1) for the treatment of viscous media comprised of at least a feed chamber (2) having a perforated tray (3), a tube-bundle heat exchanger (4) connected thereto having perpendicularly arranged tubes (8) and a devolatilization chamber (5) connected thereto, a discharge unit (6) for the product and a vapor take-off (7) for removing volatile components, the tubes (8) of the heat exchanger (4) having a rectangular cross section over the greater part of their length.

In one embodiment, an apparatus includes a housing that has at least an inlet and an outlet. The housing is configured to receive a volume of fluid via the inlet. The volume of fluid is in a substantially liquid state and at least a portion of the volume of fluid includes a dissolved impurity. The apparatus also includes a heat-transfer element coupled to an interior volume of the housing. The heat-transfer element includes a surface, at least a portion of which is disposed at an angle with respect to a horizontal plane. The volume of fluid includes a surface parallel to the horizontal plane. The apparatus further includes a compression component configured to compress at least a portion of fluid boiled from the volume of fluid.

A closed-in compartment air cleaning system and a control method thereof are disclosed, wherein the system id composed of three subsystems: a main air cleaning system, namely called as the adsorbing air cleaning system; a vice air cleaning system, namely called as the catalytic combustion air cleaning system; a linking combinatorial system, also called as the desorption reproduction system, having the advantages of combining the adsorption, the desorption, the catalytic combustion, to integrate the closed-in compartment air cleaning perfect system. The system adopts PLC microcomputer planed as a whole to control each link, which is of high efficiency, energy saving, environmental protection and sanitation. The air cleaning system and the control method can be designed into the air cleaning device with different specification according to the requirement, which can be used in the nuclear submarine, the AIP submarine, the conventional submarine, the manned spacecraft, the underground anti-aircraft defense and the air cleaning process of the air standard plant, and is an ideal closed-in compartment air cleaning system and a control method.

A method of operating an evaporator is described. In evaporator feed water, a Taylor bubble is developed which has an outer surface including a thin film in contact with an inner surface of an outer wall of an evaporator tube. The Taylor bubble is heated as it rises within the evaporator tube so that liquid in the thin film transitions into vapor within the bubble.

In one embodiment, an apparatus includes a housing that has at least an inlet and an outlet. The housing is configured to receive a volume of fluid via the inlet. The volume of fluid is in a substantially liquid state and at least a portion of the volume of fluid includes a dissolved impurity. The apparatus also includes a heat-transfer element coupled to an interior volume of the housing. The heat-transfer element includes a surface, at least a portion of which is disposed at an angle with respect to a horizontal plane. The volume of fluid includes a surface parallel to the horizontal plane. The apparatus further includes a compression component configured to compress at least a portion of fluid boiled from the volume of fluid.

A fuel evaporator (1) includes an evaporation chamber (11) to prepare a fuel gas FG by evaporating a liquid fuel FL with heat, a fuel injector (40) to supply a liquid fuel to the evaporation chamber, a plurality of heating medium tubes (12) to lead a combustion gas HG through said evaporation chamber, a superheating part (11U) to heat a fuel gas FG evaporated in said evaporation chamber by means of the combustion gas HG, an exhaust duct (22) to exhaust the fuel gas FG, and a fuel injection tube (41). The fuel injection tube is provided with a plurality of injection holes (42), said fuel injection tube being extended into said evaporation chamber and said fuel injection tube is provided crossing at right angle with respect to a heating medium tube. Injection property of the fuel injection tube in said evaporation chamber is greatly improved. The liquid fuel is evaporated effectively and rapidly.

A structure for a multiple-effect still includes a horizontal shell encompassing a plurality of effects and a series of vertical compound baffles fastened to the horizontal shell and dividing it into a series of pressure-tight chambers. Each chamber along with its associated apparatus constitutes an effect. Each compound baffle comprises a fixed baffle and a removable baffle. A heat exchanger is fastened to the removable baffle and includes an evaporation surface, a condensation surface, and a pressure chamber isolated from the pressure-tight chamber in which it is located. A port in the compound baffle allows evaporate to pass between the pressure chamber and the pressure-tight chamber of an adjacent effect. The shell is provided with a removable top plate to provide access to the heat exchanger and allow removal of the heat exchanger and removable baffle.

The present disclosure is generally directed to a solar distillation system capable of recovering potable water from non-potable water. In certain embodiments, the system includes a substantially air tight solar still having a roof top composed of a solar light-transmitting material. The solar still includes a tube positioned below and running underneath the roof top, the tube having an exit end. Additionally, the solar still includes a heating surface positioned below the roof top and adapted for receiving at least a portion of the non-potable water exiting the tube at the exit end. Non-potable water on the heating surface is solar heated and a portion of the non-potable water evaporates and condenses on the outside of the tube to be collected as potable water.

A multi-effect evaporator, having an upstream and a downstream end, adapted for distillation of water. It comprises a plurality of effects serially connected and arranged into groups. Each group has a common parallel water feed inlet adapted to supply all effects in the group with feed water. The evaporator further includes a main feed water line in fluid communication with the most upstream group. An array of heaters is disposed along the line, adapted for heating the feed water before its entry into the effects of the latter group. Each effect comprises means for forwarding the second outlet vapor into one of the heaters for heating the feed water. Each group comprises a pump adapted to extract the concentrate from the effects of the group and pump it into the common parallel water feed of an adjacent downstream group.

A multi-tube spraying device is provided. The multi-tube spraying device includes a body having a closed vessel, wherein a plurality of spraying tubes are disposed in the upper part of the closed vessel and a plurality of heat exchanging tubes are disposed in the lower part of the closed vessel. The device further includes an outlet pipe for discharging refrigerant vapor contained therein and a connecting pipe for introducing the refrigerant vapor from a source to the vessel. In addition, a liquid-vapor separator connected to the refrigerant source separates the refrigerant into vapor and liquid for introducing the liquid refrigerant to the spraying tubes in the vessel while introducing the refrigerant vapor into the vessel. Therefore, a heat exchange is performed between the refrigerant and the heat exchanging tubes.

In one embodiment, a method includes moving a first volume of fluid from a region above a heat-transfer element to a region below the heat-transfer element after the first volume of fluid is boiled from a second volume of fluid within the region above the heat-transfer element. The first volume of fluid including an impurity concentration lower than an impurity concentration of the second volume of fluid. The region below the heat-transfer element has a temperature higher than a temperature of the region above the heat-transfer element. The method also includes transferring latent heat from the first volume of fluid to a third volume of fluid on a top surface of the heat transfer element. The latent heat is released when the first volume of fluid condenses.

A condenser for a vapor compression system includes a shell, a tube bundle, and a tube support structure. The shell has a refrigerant inlet and a refrigerant outlet. The tube bundle includes a plurality of heat transfer tubes disposed inside the shell. Refrigerant discharged from the refrigerant inlet is supplied onto the tube bundle. The heat transfer tubes extend generally parallel to the longitudinal center axis of the shell. The tube support structure is configured and arranged to support the plurality of heat transfer tubes in the tube bundle within the shell. The tube support structure includes at least one tube support plate inclined relative to a vertical direction perpendicular to the longitudinal center axis of the shell.

The invention relates to a liquid distribution device, and particularly relates to a uniform overflow type liquid distributor used for uniformly distributing liquid on a horizontal heat exchange pipe. The liquid distributor comprises a flange, a feeding pipe, a horizontal branch pipe, a spray pipe, a folded-plate type overflow groove, a connecting channel and liquid distributing teeth, wherein the flange is arranged at a feeding opening; one end of the feeding pipe is connected with the flange, and the other end of the feeding pipe is connected with horizontal branch pipe; the spray pipe and the horizontal branch pipe are not in central butt joint, and occurrence of liquid accumulation in the spray pipe can be avoided; liquid in the overflow groove slowly increases by using the spray pipe, so that liquid overflows stably and has small fluctuation.

A compact array of vertical rising film evaporators is disclosed in an evacuated multi-effect process, for desalination of seawater, using waste heat of thermal machines. Vapor produced in one stage is the heat source for the next. This invention is based on a concentric disposition of three different evaporators, at which the first stage is a shell and tube evaporator built in a ring format, where is inserted inside the intermediate stage that is a bundle of vertical tubes in a ring format, and the last stage that is a bundle of vertical tubes placed inside the intermediate stage. By this arrangement, vapor pipelines are eliminated, dimensions are reduced, and heat transfer is improved per the rising film evaporators compared to falling film.

The present invention provides a multi stage flash long tube evaporator with flash stages arranged in a plurality of at least three tiers, wherein each tier is divided into a plurality of at least two flash stages and a plurality of at least three tube bundles are arranged in parallel and in a longitudinal direction in each tier. This configuration allows to minimize the evaporator shell volume, shell surface, foot print and weight, minimizing the cost of an evaporator and other related plant cost. This configuration is in particular suitable for large evaporator unit capacities.