22results about "Evaporators with vertical tubes" patented technology

The present application relates to a kind of hot exciting flash evaporation loop lift heat exchanger, including upper head, lower head, cylinder, several heat exchange tubes, the upper end surface of cylinder and the upper head form cavity I between, the lower end surface of cylinder and the lower head form cavity II between, cavity I, cavity II and the inner cavity of cylinder are not communicated with each other between, heat exchange tube is fixed in the inside of cylinder by tube sheet, the upper end of heat exchange tube is placed in cavity I and is communicated with cavity I, lower end and cavity II are communicated, cylinder includes lift section cylinder and hot exciting section cylinder, heat exchange tube includes lift section heat exchange tube and hot exciting section heat exchange tube, lift section heat exchange tube and hot exciting section heat exchange tube are communicated by throttling component between, the inner diameter of throttling component is less than the inner diameter of hot exciting section heat exchange tube.The heat exchanger of the present application is provided with a kind of hot exciting flash evaporation loop lift, will hot exciting pressurization energy storage, throttling flash evaporation kinetic energy release, loop lift heat exchange and vapor-liquid separation function integration in same equipment, solve the problem of traditional lift section heat exchanger dependence big temperature difference.

The invention relates to an evaporator-condenser-type heat exchanger comprising a plurality of zones, each zone comprising at least one extractor means configured to channel at least a portion of the primary vapor generated in said zone towards the outside of the heat exchanger. The heat exchanger includes a plurality of sub-assemblies consisting in part of a layer of a thermally conductive material.

The application relates to an MVR system based on a heat shock flash evaporation loop lift heat exchange, which comprises a lift heat exchanger, a vapor-liquid separator, a preheater, a heat shock heater and a throttling component, the preheater is communicated with the heat shock heater, the condensate inlet of the preheater is communicated with the condensate outlet of the lift heat exchanger; the material outlet of the heat shock heater is communicated with the feed inlet of the lift heat exchanger through the throttling component; the lift heat exchanger is communicated with the vapor-liquid separator, so that the secondary steam in the lift heat exchanger enters the vapor-liquid separator, the gaseous phase after separation is compressed and introduced into the lift heat exchanger, and is used as a heat source of the lift heat exchanger; the concentrated liquid flowing out of the vapor-liquid separator and the lift heat exchanger is extracted when the concentration detection is qualified, and is re-injected into the heat shock heater after being pressurized for reuse when the concentration detection is unqualified. The application can form a stable circular flow without relying on a large temperature difference, matches the narrow temperature difference heat transfer characteristics of the MVR system, and greatly reduces the high-grade energy consumption of the lift heat exchanger.

The utility model discloses a product concentration device for chicken essence production belongs to chicken essence production technical field, and this product concentration device for chicken essence production includes the condensation jar and installs the liquid inlet pipe and the liquid outlet pipe of the two sides of the condensed pipe outer wall, the steam heating pipe is fixed with in the inlay of the central position department of condensation jar, and the inner wall top of condensation jar is fixed with the baffle, and is separated with the equipment bin through the baffle, wherein the top of condensation jar is fixed with the steam output pipe, the steam heating pipe is rotatably connected with the rotating pipe, the outer wall of rotating pipe is fixed with a plurality of heat -conducting stirring rods, and this product concentration device for chicken essence production drives the rotating pipe rotation through motor, drive shaft, first gear and second gear, and the heat -conducting stirring rod makes chicken essence fully contact with the heating source in the process of rotating, makes the steam heating pipe even heat to chicken essence, avoids the situation that chicken essence solution is sticky and heats the equipment one side because of the excessively high heating temperature.

The utility model relates to chemical technical field, an embodiment of the utility model provides a kind of crystallization device for hydroquinone production, including flash crystallizer, the top of the flash crystallizer is provided with demister, the side of the flash crystallizer is provided with hydroquinone production component, the hydroquinone production component includes condenser, the condenser is arranged in the side of demister, the lower portion of the condenser is provided with condensate tank, the side of the condensate tank is provided with thickener, the lower portion of the thickener is provided with mother liquor tank, the upper portion of the mother liquor tank is provided with centrifuge, the side of the flash crystallizer is provided with crystallization discharge pump, the side of the crystallization discharge pump is provided with clear liquid pump, the side of the clear liquid pump is provided with condensate pump. By the above technical scheme, the technical problem that a kind of crystallization device for hydroquinone production in related art / prior art cannot make crystallizer can produce larger size crystal is solved.

This invention relates to a corrosion-resistant duplex stainless steel (ferritic austenitic alloy) for use in an apparatus for urea production; and its applications. This disclosure also relates to objects made of said duplex stainless steel. Furthermore, this disclosure relates to a method for urea production and an apparatus for urea production comprising one or more components made of said duplex stainless steel, and to a method for modifying an existing apparatus for urea production.

An evaporator includes: a cylindrical member 10 through which a heating medium can flow; a heat exchange structure provided on a radially inner side of the cylindrical member 10; and a jacket member 30 provided on a radially outer side of the cylindrical member 10 with a space so as to define a flow path for a liquid and a vapor thereof, the jacket member 30 having a feed port 31 for a liquid M1 and a discharge port 32 for a vapor.

Provided herein are nano-emulsion compositions comprising a cannabinoid, a solvent, a lipid source, and a surfactant. Methods of making the nano-emulsion compositions and methods of use are also provided herein. Compositions comprising the nano-emulsion compositions, such as food and beverage compositions and topical compositions, are also provided herein.

The utility model provides a tubular evaporator, which relates to the technical field of evaporators and comprises an outer cylinder, an upper spraying cavity is arranged on the upper portion of the outer cylinder, a lower cavity is arranged on the lower portion of the outer cylinder, an evaporation chamber is arranged between the upper spraying cavity and heat exchange tubes, and a plurality of groups of heat exchange tubes are sleeved in the evaporation chamber. The upper end and the lower end of the heat exchange pipe are arranged in the set of positioning clamping pieces in a sleeved mode respectively, the upper end of the heat exchange pipe is led into the upper spraying cavity, the lower end of the heat exchange pipe is led into the lower cavity, the middle of the outer barrel is sleeved with a middle fixing sleeve, an outer pipe opening is formed in the middle of the front side of the middle fixing sleeve, and the upper spraying cavity is of a hollow cone structure. A nozzle is arranged at the upper end of the upper spraying cavity, and the heat exchange pipe is of a hollow cylinder structure. The efficiency that materials form film shapes on the inner walls of the heat exchange tubes is improved, film forming is more uniform, the speed of secondary steam is improved, the downward movement starting speed of liquid materials is further improved, and the film forming device is more efficient and practical.

The application discloses an evaporator and method for plutonium-containing feed liquid evaporation concentration and oxalic acid destruction, comprising a heating chamber and a separation chamber, wherein: the number of the heating chamber is multiple, multiple heating chambers are symmetrically distributed around the separation chamber, the upper part of each heating chamber is communicated with the separation chamber through an upper circulation pipe, the lower part of each heating chamber is communicated with the separation chamber through a lower circulation pipe, and a communication pipe is arranged between each heating chamber; a feed liquid inlet is arranged on the lower circulation pipe, and a feed liquid outlet is arranged at the bottom of the lower circulation pipe; the separation chamber is provided with a secondary steam outlet and a leaching liquid inlet, a purification tower plate is arranged in the separation chamber, and a demister is arranged on the purification tower plate. The application can perform plutonium-containing feed liquid evaporation concentration, synchronously complete oxalic acid destruction, purify secondary steam, meet the critical safety requirement, and improve the working flux.

An evaporator includes: a cylindrical member through which a heating medium can flow; a heat exchange structure provided on a radially inner side of the cylindrical member; and a jacket member provided on a radially outer side of the cylindrical member with a space so as to define a flow path for a liquid and a vapor thereof, the jacket member having a feed port for a liquid and a discharge port for a vapor.

This invention relates to a thermally stimulated flash evaporation circulating rising film heat exchange method, comprising the following steps: S1, thermally stimulating pressure and storing energy; pressurizing the feed liquid and sending it into the thermally stimulated heater to heat the feed liquid to a high-pressure saturated state; S2, throttling flash kinetic energy release; throttling the high-pressure saturated material to the evaporation pressure of the rising film heat exchange; S3, kinetic energy driving rising film heat exchange; uniformly distributing the vapor-liquid two-phase flow and sending it into the rising film heat exchanger, using the expansion kinetic energy of the flash vapor to drive the feed liquid to form a uniform liquid film in a circular flow state; S4, vapor-liquid separation and discharge; separating the vapor and liquid after the rising film heat exchange, collecting the qualified portion of the unevaporated liquid phase, and repeating S1~S4 for the unqualified portion. This invention, through the synergistic effect of thermally stimulating pressure and storing energy and throttling flash kinetic energy release, directly drives the circulating rising film in the heat exchange tube through the rapidly expanding vapor-liquid mixture after the thermally stimulated feed liquid throttling flash evaporation, breaking the dependence of traditional rising film heat exchange on large temperature differences and achieving efficient and stable operation under narrow temperature difference conditions.

A separation system separates a first liquid from a compound liquid. Examples of the compound liquid are seawater, brine, rainwater, wastewater, biofuel precursors, lactic acid, or fruit juice. A plate heat exchanger includes at least one evaporation channel and at least one condensation channel. The compound liquid flows through the evaporation channel where the first liquid evaporates from the compound liquid into a gas. A direct heat exchanger further evaporates the first liquid into the gas. The gas flows from the direct heat exchanger through the condensation channel where the first liquid condenses and is thereby separated from the compound liquid.

Described is a process comprising a step of evaporating glycerol in single chamber evaporator for purifying glycerol and / or for providing gaseous glycerol for chemical conversion into one or more reaction products.

The present application provides a kind of evaporator, can stably generate steam, and manufacture easily, durable reliability is high, can be miniaturized.Evaporator has: tubular member (10), which can be supplied heating medium flow-through;Heat exchange structure, which is configured to the radial inner side of tubular member (10);And sheath member (30), it is spaced apart in the manner of forming the flow path of liquid and its steam and is configured to the radial outer side of tubular member (10), and has the supply port (31) of liquid (M1) and the exhaust port (32) of steam.

This utility model relates to the field of ethanol processing technology, and in particular to a continuous ethanol concentration device. The continuous ethanol concentration device includes: a support frame with a heat exchanger fixedly connected inside; a discharge pipe installed at the bottom of the heat exchanger and a feed pipe installed at the top; a filtration mechanism installed inside the heat exchanger, capable of filtering out yeast, protein, and solid residues in the fermentation broth, thereby increasing ethanol purity; and a cleaning mechanism installed inside the heat exchanger, capable of cleaning the outer surface of the tubes, significantly improving the overall performance of the continuous ethanol concentration device, removing scale, oil, or material crystals adhering to the outer wall, greatly reducing thermal resistance, and allowing for more efficient transfer of heat source energy to the ethanol solution inside the tubes, thus reducing steam or heat transfer oil consumption. This utility model increases heat exchange efficiency and reduces concentration time through the cooperation of the filtration and cleaning mechanisms.

An evaporator includes: a cylindrical member 10 through which a heating medium can flow; a heat exchange structure provided on a radially inner side of the cylindrical member 10; and a jacket member 30 provided on a radially outer side of the cylindrical member 10 with a space so as to define a flow path for a liquid and a vapor thereof, the jacket member 30 having a feed port 31 for a liquid M1 and a discharge port 32 for a vapor.

The present invention relates to a saltwater evaporator (1) comprising a housing (10), which substantially encloses an inner space (11) having at least one steam outlet opening (12) and has at least a first saltwater feed (11a), wherein the surface of the inner space (11) and the first saltwater feed (11a) are designed to allow saltwater (A), as a saltwater film (B), to run off along the vertical axis (Z) on the surface of the inner space (11), and comprising at least one heat source (16, 17), which is designed and arranged within the inner space (11) in order to contactlessly heat the side of the saltwater film (B) which faces away from the surface of the inner space (11) and faces the heat source (16, 17) in such a way that exactly one part of the liquid phase of the saltwater film (B) is evaporated, wherein the housing (10) further comprises at least one saltwater outlet (11c) of the inner space (11), which is arranged and formed along the vertical axis (Z) below the first saltwater feed (11a) to carry off the rest of the liquid phase of the saltwater film (B) out of the inner space (11).

The utility model relates to acetic acid technical field proposes a kind of column pipe type evaporator for acetic acid production, including shell, the evaporation subassembly is installed in shell interior, fixedly connected with fixed box on the bellows, the recovery subassembly is installed in the fixed box bottom, the feeding subassembly is installed in the reaction bin interior, evaporation subassembly is made after secondary steam by secondary steam pipe into the reaction bin interior, feeding subassembly works, by feeding pipe one and send in ethylene, by feeding pipe and send in oxygen, so that raw materials are reacted in the reaction bin interior and generated acetic acid, by recovery pipe and send gaseous acetic acid into fixed box, by liquid inlet pipe and add liquid to bellows interior, water in bellows is changed into steam by heat exchange and sent into shell, liquid acetic acid is entered into recovery tank by collection pipe, and subsequent heat is recycled and utilized, reduce production cost. Through the above technical scheme, the problem that waste heat cannot be utilized after acetic acid production in the prior art is solved.

To provide an evaporator that can stably generate steam, is easy to manufacture, has high durability and reliability, and can be miniaturized. [Solution] The evaporator comprises a cylindrical member 10 through which a heating medium can flow, a heat exchange structure arranged radially inside the cylindrical member 10, and a jacket member 30 arranged radially outside the cylindrical member 10 at intervals to form a flow path for liquid and its vapor, and having a liquid supply port 31 and a vapor outlet 32.

The present invention provides an apparatus and method for continuous purification of high boiling point thermally sensitive compounds by selective continuous distillation of the medium entering the apparatus to remove more volatile impurities therefrom. The apparatus is a columnar device comprising at least three sections arranged in series: a mass transfer section, an evaporation section and a cooling section, wherein the evaporation section is a self-priming vertical falling film evaporator and the residence time of the thermally sensitive mixture in the evaporator zone is fixed. In particular cases, examples of high boiling point thermally sensitive media include mixtures of aromatic polyamines, such as mixtures of methyldiphenylamine (MDA) and higher homologues thereof; and mixtures of aromatic polyisocyanates, such as mixtures of methyldiphenyl isocyanate (MDI) and higher homologues thereof. The method based on the apparatus provides the above purified medium with a residual volatile solvent (e.g. aniline or chlorobenzene) content of no more than a few tens of ppm and a residence time of the volatile medium in the evaporator zone of no more than 100 seconds, which does not result in a significant change in the color of the thermally sensitive medium.

This invention proposes a water film reconstruction tubular evaporation dehydration device, comprising: an inner liner, evaporation tubes, a hydrocyclone, and an insulation layer shell. The top of the inner liner is equipped with a nozzle. The evaporation tubes include multiple longitudinally arranged straight evaporation tubes, all housed within the inner liner. The upper diameter of each straight evaporation tube is larger than its lower diameter. The hydrocyclone is installed inside the inner liner and communicates with each straight evaporation tube. The insulation layer shell covers the outside of the inner liner. By arranging the straight evaporation tubes longitudinally, with the upper diameter of each tube larger than its lower diameter, the solution flows in from the upper end of each straight evaporation tube through the hydrocyclone, easily forming a water film on the inner wall of each tube, which is beneficial for subsequent production.