17 results about "Evaporation" patented technology

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The present invention relates to a process for recovering propylene from a gaseous stream comprising propylene and a light-boiling compound, the light-boiling compound having a boiling point at 1013 mbar (abs.) below −50° C., in a condensing unit, wherein the condensing unit has a first zone, preferably being a condensing zone, and a second zone, preferably being an evaporation zone, wherein first and second zone are spatially separated from each other but are thermally conductive coupled to each other, the process comprising(i) providing a gaseous stream comprising propylene and a light-boiling compound;(ii) providing a liquid cooling medium stream having a temperature T1;(iii) cooling the liquid cooling medium stream in two or more cooling steps to a temperature T4, which is lower than the temperature T1, thereby obtaining a liquid cooling medium stream having temperature T4;(iv) feeding the gaseous stream comprising propylene and a light-boiling compound from (i) into the first zone of the condensing unit and feeding the liquid cooling medium stream having the temperature T4 obtained from (iii) to the second zone of the condensing unit;(v) expanding the liquid cooling medium stream, preferably adiabatically, within the second zone, thereby obtaining from the first zone an at least partially liquid stream comprising propylene, which is depleted in light-boiling compounds compared to the stream provided in (i).

The application discloses a through-flow energy-saving boiler, which solves the problem of high steam humidity of the existing boiler. A gas burner is installed in a hearth, a water collecting tank is arranged at the bottom of the hearth and is externally connected with a water supplement pump; a space-occupying rod is arranged in a heat exchange pipe, the evaporation tank is located in the hearth, the water surface in the evaporation tank is a vapor-liquid interface, and saturated steam continuously enters a steam-water separation pipe; a bend pipe part is arranged in the steam-water separation pipe, the low point of the bend pipe part is perforated and is connected to the evaporation tank through a backflow pipe, and primary steam-water separation is realized; at least half of the upper ports of the steam-water separation pipe are provided with flow guide pipes, steam is high-speed sprayed along a tangent and horizontal direction, and the steam forms vortex steam under the guidance of the flow guide pipes, so that secondary steam-water separation is realized. When low-quality steam passing through the steam-water separation pipe passes through the structure, the thermal motion of steam molecules will make them collide with each other, collide with the pipe wall, condense and the like to form misty micro water droplets and backflow, so that the steam quality of the boiler is improved.

The present invention relates to a technology for liquefying natural gas, which is subsequently transported by rivers and oceans and ultimately regasified. Pretreated natural gas is compressed by a compressor 1, the heat of compression is removed in an air or water cooler 2, and multi-stage pre-cooling is subsequently performed by evaporating a heavy refrigerant in an evaporator 3. The light refrigerant vapor and its pre-evaporation cold are recovered in a shell-and-tube heat exchanger 7, where the pressure of the gas to be liquefied is reduced by a pressure reducer 10, unliquefied gas is separated, and liquefied natural gas is discharged. The heavy refrigerant obtained by evaporation is compressed by a compressor 4, condensed in an air or water cooler 5, and reused in the multi-stage pre-cooling of natural gas. A light refrigerant is compressed by at least two compressors 11, the heat of compression is removed in an air or water cooler 12, and then passes through continuous cooling by a low-pressure light refrigerant in a double-flow superheater 12 and an evaporating heavy refrigerant in an evaporator 3. The high-pressure light refrigerant is then split into two streams. The first stream is expanded through an isentropic process in an expander 14. The second stream passes through continuous cooling in a shell-and-tube heat exchanger 7, then expanded through an isenthalpic process in a throttle valve 15, and evaporated by subcooling natural gas in an evaporator 8. The streams are then mixed at equal pressure and used as a single stream of low-pressure light refrigerant to cool the second stream of light refrigerant before expansion and evaporation in the isenthalpic process with natural gas in the shell-and-tube heat exchanger 7, and to cool a single stream of high-pressure light refrigerant in a double-flow superheater 13. The present invention provides stronger cooling of the natural gas, reduces the amount of boil-off gas and the work required for its recompression and recycling, and provides a simpler hardware design for the heat exchanger.

The present invention relates to a device (10) for absorbing precipitation from rainfall events, particularly heavy rainfall events, and draining it by evaporation, comprising at least one textile element (12) for absorbing water from raindrops and / or draining water by evaporation, the textile element (12) being designed or embodied as a 3D textile structure (13) with a first, water-permeable layer (14) and a second, water-conducting layer (16), the layers (14, 16) being interconnected by water-conducting connecting yarns (18), the textile element (12) preferably being fluidly connected to a water collection device (24) via a drainage pipe (20) and / or to a water supply device (26, 67) via a water supply pipe (22). A facade system (100) is defined that includes such a device (10) separating the interior (inside) I of a building from the external space (outside) O, said facade system (100) optionally consisting of one or more layers (104, 106, 108, 110) and / or modules, which may or may not comprise at least one fluid-flow layer (104, 108), a thermal insulation layer (106), an internal layer (110), these components of the facade system (100) and / or the holding device and / or the frame profile (34, 34') of the device (10) being preferably attached or attachable to a modular profile system (102, 102').

To enable a quick emergency response without performing complicated adjustment, to enable a highly immediate response, and to maintain the effect of suppressing the vaporization and diffusion of liquid ammonia for a predetermined period, when suppressing the vaporization and diffusion of leaked liquid ammonia.SOLUTION: In the method for suppressing the vaporization and diffusion of liquid ammonia leaked from a storage facility or its incidental facilities, a liquid material which is solidified by being brought into contact with the liquid ammonia to form a solidified layer on the liquid surface of the liquid ammonia is charged onto the liquid ammonia staying under atmospheric pressure.SELECTED DRAWING: Figure 1

The utility model discloses a heating evaporation system, comprising: a heating device having a fluid outlet; the evaporation device is provided with a fluid inlet; the first end of the fluid channel is communicated with the fluid outlet, the second end of the fluid channel is communicated with the fluid inlet, the lower portion of the cross section of the fluid channel is a fluid flowing space, and the upper portion of the cross section of the fluid channel is an evaporation space. According to the heating evaporation system provided by the invention, when water molecules in fluid pass through the fluid channel between the heating device and the evaporation device, the evaporation surface area and the evaporation space are relatively large, so that the fluid molecules can be quickly separated from the liquid surface, and the purpose of flash evaporation is achieved; the fluid in the heating evaporation system can be flashed before the evaporation device while flowing in the fluid channel, so that the overall evaporation speed of the heating evaporation system can be increased.

A method and apparatus for thermal evaporation are provided. The thermal evaporator includes a flat crucible design, which provides an increased surface area for evaporation of the material to be deposited relative to conventional designs. The increased surface area for evaporation means that the more vapor of the evaporated material can be produced, which increases pressure inside the evaporator body leading to increased flow of the evaporated material out of the nozzles. The flat crucible can be attached to an evaporator body of the thermal evaporator. The flat crucible can be integrated within the evaporator body. The evaporator body can include a plurality of longitudinal grooves, which increase the surface area of the evaporator body. The thermal evaporator can include a plurality of baffles which divide the thermal evaporator into separate compartments.

A method for separating a gaseous or vaporous substance from a carrier gas stream by partial condensation, in which a carrier gas loaded with at least one substance to be condensed is guided through a flow path (20) extending in the housing (2, 102, 202, 302) of a condenser from a carrier gas inlet (7, 107, 207, 307) to a carrier gas outlet (8, 108, 208, 308), within which it is brought into indirect thermal contact with a heat transfer medium at a first heat exchanger surface and is thereby cooled to a temperature below the dew point temperature of the substance to be condensed, wherein the substance at least partially condenses on the heat exchanger surface in the form of liquid condensate, which is subsequently collected in a condensate bath (22) and discharged, wherein The carrier gas, after contact with the first heat exchanger surface, passes through an evaporation zone (23, 124) in the flow path (20) in which a temperature prevails that is higher than the dew point temperature of the substance to be condensed, and the carrier gas is subsequently cooled at a second heat exchanger surface in the flow path (20) in indirect thermal contact with a heat transfer medium to a temperature below the dew point temperature of the substance to be condensed. characterized by that at least a partial flow of the heat transfer medium used at the first and / or the second heat exchanger surface is brought into thermal contact with the collected condensate in the condensate bath (22) and is subsequently supplied to the evaporation heat exchanger surface (18b, 118b, 226b, 326b) for indirect heat exchange with the carrier gas in the evaporation area (23, 124).

The invention relates to a liquid level inducement recognition and recovery system for a non-closed phase change immersion cooling system. The problem that an existing cooling system lacks the capacity of recognizing and recovering a root cause of liquid level decline is effectively solved. According to the technical scheme, the liquid level inducement recognition and recovery system for the non-closed phase change immersion cooling system can monitor and compare the liquid level height of a cooling box body inside and outside a gas collecting hood and the temperature and pressure of a gas storage cavity in real time; whether liquid level decline is caused by evaporation aggravation due to insufficient overall medium or abnormal working conditions in the gas collecting hood is accurately judged, so that an accurate basis is provided for taking correct recovery measures; by integrating sensing of multiple parameters such as water level, temperature, pressure and the like, the system can automatically diagnose the liquid level state, judge inducements and execute corresponding gas pumping, liquid internal circulation or external liquid supplementing operation, the heat dissipation reliability, the medium utilization rate and the overall energy efficiency of the system are remarkably improved, and important practical value is achieved.

The invention discloses a space temperature distribution measuring mechanism in the technical field of space evaporation heat transfer, which comprises a displacement mechanism and a temperature measuring device fixedly mounted on the displacement mechanism, and the displacement mechanism can drive the temperature measuring device to linearly move. And the linear movement direction is perpendicular to a base plane, used for forming liquid drops, of the evaporation table, so that the temperatures of gas-liquid interfaces at different positions are measured. The displacement mechanism can drive the temperature measuring device to linearly move, the linear movement direction is perpendicular to the base plane, used for forming liquid drops, of the evaporation table, and the distance between the first temperature sensor in the temperature measuring device and the base of the evaporation table can be adjusted, namely, the position of the first temperature sensor on a gas-liquid interface is adjusted; the temperature of the gas-liquid interface at different positions is comprehensively measured, and sufficient data support is provided for studying the discontinuous (jumping) change rule of temperature distribution in the normal direction of the evaporation gas-liquid interface.

The method, process and apparatus for very low temperature evaporation system novelty of the invention lies in the concept of method, process and apparatus for evaporation and concentration at very low temperature ranges from 5ºC to 80ºC to recover water vapour from liquids or solutions or industrial effluents or spentwash or industrial wastewater or juices or syrups or slurry or sludge or brine or sewer or wastewater or any other evaporative liquid materials in single or multiple effect heat exchanger arranged in horizontal or vertical manner with mechanical vapour compression system under vacuum. This very low temperature evaporation system operates at lowest temperature for maximum clean water recovery from liquids or solutions or industrial effluents or industrial wastewater. The apparatus for low temperature evaporation system eliminates or reduces the utilization of heat generation and rejection units along with other benefits like reduces water extraction from earth and energy losses.

The utility model discloses a steam generating device and a wafer drying device, the steam generating device comprises a shell, a liquid medium to be evaporated, a first heating piece and a microbubble generator, the shell is provided with a containing cavity and a first air outlet communicated with the containing cavity, the liquid medium to be evaporated is located in the containing cavity, and the first heating piece is located in the first air outlet. The first heating piece is used for heating the liquid to-be-evaporated medium in the containing cavity, and the microbubble generator is located in the liquid to-be-evaporated medium and used for generating microbubbles in the liquid to-be-evaporated medium. The micro-bubbles rise under the action of buoyancy, when the micro-bubbles rise to the surface of the liquid to-be-evaporated medium, due to unbalanced pressure and the action of surface tension, the micro-bubbles can be broken, energy generated by breaking of the micro-bubbles enables liquid to-be-evaporated medium molecules attached to the micro-bubbles to obtain additional kinetic energy, and the liquid to-be-evaporated medium molecules can be evaporated. The kinetic energy enables liquid to-be-evaporated medium molecules to overcome the attraction force between the molecules to be converted into a gas state from a liquid state, and therefore steam is formed. A large amount of steam can be generated without increasing the heating temperature.

This invention provides an immersion phase change heat dissipation device and method based on partitioned adaptation, relating to the field of high heat flux density heat dissipation technology. It includes: an immersion cooling chamber with a gas phase zone and a liquid phase zone formed sequentially from top to bottom; a heat-generating element to be cooled is arranged in the liquid phase zone, which is filled with a low-boiling-point insulating cooling medium; a pulsating heat pipe array composed of multiple closed-loop pulsating heat pipes, each arranged vertically, and from top to bottom consisting of a condensation section, an adiabatic section, and an evaporation section; the evaporation section is located within the gas phase zone, while the condensation and adiabatic sections extend to the outside of the chamber; a flow guide shroud, located in the gas phase zone between the evaporation section and the liquid surface of the cooling medium, has a flared, two-section truncated quadrangular truncated pyramid structure, with its lower opening serving as a steam inlet, positioned opposite the liquid surface of the cooling medium in the liquid phase zone; steam outlet holes on the upper sidewall are arranged facing the evaporation section of the pulsating heat pipes; this invention achieves uniform steam distribution, efficient condensation, reliable vapor-liquid separation, and long-term stable operation within the gas phase zone.

The invention discloses a system and a method for generating elemental mercury standard gas and ionic mercury standard gas based on elemental mercury. According to the invention, the saturated vapor pressure principle of mercury is utilized, the system only adopts elemental mercury to generate two gaseous standard substances, namely elemental mercury standard gas and ionic mercury standard gas, and the convention that the elemental mercury standard gas and the ionic mercury standard gas are used as independent systems is broken through; by adopting a mercury elementary substance saturated vapor pressure balance principle, the accuracy and the credibility of elemental mercury standard gas are ensured; the ion mercury standard gas adopts the elemental mercury oxidation principle, and compared with traditional high-temperature mercury standard liquid evaporation, the ion mercury standard gas is low in energy consumption, more stable and more reliable.

The invention relates to the technical field of mercury detection, in particular to a sample preparation method of a mercury-containing material. According to the sample preparation method of the mercury-containing material, through deep freezing treatment, it can be ensured that elemental mercury and part of organic mercury compounds in the sample are completely solidified, the vapor pressure of the sample is greatly reduced, and volatilization of mercury is effectively reduced. Meanwhile, the mercury-containing sample is flatly laid through pre-loading treatment, during freezing, the solidification temperature can be rapidly reached, volatilization of mercury during freezing is effectively avoided, the accuracy of subsequent analysis results is guaranteed, the evaporation surface area can be increased, and the efficiency of the subsequent sublimation drying stage is effectively improved. According to the present invention, the cold trap vacuum drying treatment is performed, and the sublimation drying is performed in the high vacuum environment of less than 20 Pa so as to fundamentally solve the mercury loss problem caused by the existing heating method, such that the subsequent analysis test result can truly and accurately reflect the original content and the form distribution of the mercury in the sample.