942 results about "Flash evaporation" patented technology

The invention relates to the technical field of coalification black water treatment, and particularly discloses a coal gasification black water flash steam waste heat steam turbine gradient utilization system which comprises a black water flash steam turbine module and a steam exhaust condensation module. The black water flash steam turbine module comprises a high-pressure flash evaporator, a low-pressure flash evaporator, a vacuum flash evaporator, a supplementary condensing steam turbine, a generator and a settling tank, and a water outlet of the vacuum flash evaporator is connected with the settling tank; the steam exhaust condensation module comprises an evaporative condenser and a condensate pump. Through the design of the scale scraping and water uniformizing piece, part of cooling water falling around the heat exchange coil from top to bottom falls on the water uniformizing plate to drive the water uniformizing plate to rotate, when the water uniformizing plate rotates, water on the water uniformizing plate is thrown out under the action of centrifugal force, cooling water without heat exchange can be uniformized to other heat exchange pipes for heat exchange, and the heat exchange efficiency is improved. Therefore, the cooling water flows more uniformly among the heat exchange coils, the utilization rate of the cooling water is improved, and the heat exchange efficiency is improved.

The present application relates to a kind of heat shock flash evaporation loop lift membrane heat exchange test system, including heat exchange pipe, vapor-liquid separator, condenser, metering barrel, vacuum pump, liquid tank, heat shock heater, throttle valve, measurement and control system and high-speed camera, the upper outlet of heat exchange pipe is connected with the import of vapor-liquid separator, the secondary steam outlet of vapor-liquid separator is connected with the hot medium side import of condenser, the hot medium side outlet of condenser is connected with metering barrel and liquid tank respectively, the concentrated liquid outlet of vapor-liquid separator is connected with liquid tank, the outlet of metering barrel is connected with liquid tank, vacuum pump is connected with liquid tank, liquid tank is connected with heat shock heater, heat shock heater is connected with heat exchange pipe, throttle valve is arranged between heat shock heater and heat exchange pipe;High-speed camera is arranged in one side of heat exchange pipe.The present application can realize the experimental test to heat shock flash evaporation loop lift membrane heat exchange technology, and provide support for mechanism research, equipment optimization of heat shock flash evaporation loop lift membrane heat exchange technology.

The invention belongs to the field of industrial flue gas purification technology and energy conservation, and relates to a system and a method for removing condensable particulate matters through multi-field coupling synergistic enhanced condensation, the system comprises a desulfurization tower, a flash tank, a condensation structure, a liquid collecting tank and a cold water spraying layer, a slurry distribution layer of the flash tank is connected with a tower kettle of the desulfurization tower, and a flash slurry pool of the flash tank is connected with the slurry spraying layer; the liquid collecting tank, the condensation structure and the cold water spraying layer are sequentially arranged from bottom to top and are integrated in the same shell to form a secondary removal device capable of condensing particles, the secondary removal device is communicated with the top of the desulfurization tower, and flue gas channels are uniformly distributed on the liquid collecting tank; the condensation structure is formed by combining a plurality of obliquely-arranged wave-shaped condensation plates in parallel, the surfaces of the wave-shaped condensation plates are arranged in a hydrophobic mode, a plurality of protrusions and pits are arranged on the faces, facing flue gas, of the wave-shaped condensation plates, and condensable particles in the flue gas can be effectively removed.

A liquefier device which may be a retrofit to an air separation plant or utilized as part of a new design. The flow needed for the liquefier comes from an air separation plant running in a maxim oxygen state, in a stable mode. The three gas flows are low pressure oxygen, low pressure nitrogen, and higher pressure nitrogen. All of the flows are found on the side of the main heat exchanger with a temperature of about 37 degrees Fahrenheit. All of the gases put into the liquefier come out as a subcooled liquid, for storage or return to the air separation plant. This new liquefier does not include a front end electrical compressor, and will take a self-produced liquid nitrogen, pump it up to a runnable 420 PSIG pressure, and with the use of turbines, condensers, flash pots, and multi pass heat exchangers. The liquefier will make liquid from a planned amount of any pure gas oxygen or nitrogen an air separation plant can produce.

The invention discloses high-purity oxamide with concentrated particle size and spherical morphology, a preparation method of the high-purity oxamide and application of the high-purity oxamide in preparation of a slow-release fertilizer, and belongs to the technical field of oxamide synthesis and application. The method comprises the following steps: mixing an ammonia-alcohol solution and an alcohol ester solution, conveying the mixed solution into a series tubular reactor for reaction, and then conveying the mixed solution into a parallel tubular reactor for reaction after pressure stabilization and flow equalization to obtain a reaction solution containing oxamide; performing flash evaporation on the reaction liquid to obtain flash evaporation liquid and flash evaporation gas, and performing solid-liquid separation on the flash evaporation liquid to obtain solid oxamide and filtrate; and drying the solid oxamide to obtain the oxamide. The method realizes high conversion rate and high purity, and the product has ultrafine particle size distribution. The purity of the prepared oxamide is greater than or equal to 99%, the D50 particle size is concentrated to 50 + / -15 microns, the spherical morphology is uniform, the release is stable, and the oxamide has a very good effect in preparation of long-acting slow-release fertilizers and combustion inhibitors and research on the nitrogen utilization rate.

The utility model discloses a black water waste heat high-quality recycling system which comprises a high-pressure purification flash evaporator, a low-pressure purification flash evaporator, a high-flash tank and a low-flash tank, black water is sequentially subjected to four times of flash evaporation stripping, flash steam generated by the high-pressure purification flash evaporator and flash steam generated by the low-pressure purification flash evaporator respectively act with an evaporator to generate saturated steam, and the saturated steam is separated from the low-flash tank. The saturated steam can meet different process applications after being pressurized by the steam pressurizing device; the high-flash condenser is used for condensing high-flash steam discharged by the high-flash tank, non-condensable gas enters a torch treatment pipeline, and condensed water is recycled in the process; the low flash tank is used for receiving the liquid part discharged by the high flash tank; the low-flash condenser is used for condensing low-flash steam in the low-flash tank and then returning the condensed low-flash steam to a process system for recycling; and the demineralized water preheater is used for receiving part of the low-flash liquid discharged by the low-flash tank to preheat the demineralized water. According to the utility model, the waste heat of black water can be extracted in a grading manner and efficiently utilized.

The utility model discloses a high-temperature-resistant flash valve exhaust nozzle structure which comprises a pipe body and an energy reduction structure. The energy reduction structure comprises at least two stages of ceramic energy reduction units which are connected in series, and the ceramic energy reduction units are connected in the pipe body; the ceramic energy reduction unit comprises a first-stage energy reduction assembly and a second-stage energy reduction assembly; the first-stage energy reduction assembly comprises a first ceramic spray pipe and a first liner pipe; the first lining pipe sleeves the outer side of the first ceramic spray pipe; the first liner tube is arranged in the tube body; the second-stage energy reduction assembly comprises a second ceramic spray pipe and a second liner pipe; the second lining pipe sleeves the outer side of the second ceramic spray pipe; the second liner tube is arranged in the tube body; the end of the first ceramic spray pipe abuts against the end of the second ceramic spray pipe. And a medium flows out of the pipe body after sequentially passing through the first-stage energy reduction assembly and the second-stage energy reduction assembly from the inlet end of the pipe body. According to the multi-stage energy reduction device, the multi-stage energy reduction assemblies connected in series are adopted, medium pressure can be decomposed into stage-by-stage release, and therefore the fluid speed is effectively reduced, and dependence on a high-temperature adhesive is also avoided.

The invention discloses a fused salt steam generation system and a control method thereof. A high-temperature molten salt tank, a salt feeding pump, a molten salt channel of a second-stage superheater, a molten salt channel of a first-stage superheater, a molten salt channel of an evaporator, a molten salt channel of a preheater and a low-temperature molten salt tank of the system are communicated in sequence; the water supply end, the water supply pump, a steam-water channel of the preheater, the steam pocket, the pressure regulating valve, a steam-water channel of the first-stage superheater, the water spraying and temperature reducing device, a steam-water channel of the second-stage superheater and the steam removal end are sequentially communicated, and a descending pipe and an ascending pipe of the steam pocket are communicated with a steam-water channel of the evaporator. The control method aims at the system. The method has the advantages that the steam pocket pressure is actively adjusted during load rising, the liquid working medium is flashed, a load instruction can be quickly responded, steam is stably generated according to the instruction and merged into the steam turbine, and the stability and safety of the steam turbine are improved; the steam pocket of the evaporation system is used as steam storage equipment, so that an independent steam storage pocket is prevented from being arranged in the evaporation system, the cost is reduced, and the control logic is simplified.

The invention relates to a flash evaporation material with a high transmission-reflection ratio, which is characterized in that the raw material of the flash evaporation material comprises polyethylene; the Frazier air permeability of the flash evaporation material is 0.45-0.85 m < 3 > / (min.m < 2 >); the transflective ratio of the flash evaporation material is 2-7m < 3 > / (min.m < 2 >. Mm), and the transflective ratio is equal to (Frazier air permeability. Reflectivity) / thickness. Through comprehensive regulation and control and balance of four groups of core parameters including the solvent ratio, the spinning parameters, the web forming speed and the hot rolling process, part of performance pain points in the prior art are solved, and the design requirement for the proper transflective ratio is met.

The present application relates to a kind of heat pump rectification systems based on heat shock flash circulation lift heat exchange, including rectifying tower, lift membrane reboiler, first throttling valve and heat shock heater, the secondary steam outlet of rectifying tower is connected with the heating steam import of lift membrane reboiler, the discharge port of the bottom of rectifying tower is connected with the cold side flow channel import of heat shock heater, and the cold side flow channel export of heat shock heater is connected with the feed inlet of lift membrane reboiler by first throttling valve;The vapor-liquid mixture outlet of lift membrane reboiler is connected with the column still liquid reflux port of rectifying tower, and the steam condensate outlet of lift membrane reboiler is connected with condensate tank, and the liquid outlet of condensate tank is connected with the condensate reflux port of rectifying tower side wall.The present application is combined by heat shock pressurization energy storage and throttling flash kinetic energy release, provides independent and stable lift membrane kinetic energy for lift membrane heat exchange, so that the flow pattern in the tube of lift membrane reboiler directly enters the efficient annular flow stage, improves the industrial applicability of lift membrane heat exchange technology in heat pump rectification system.

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 system comprises an absorption tower, a grading flash tank, a desorption tower, a buffer tank and an MVR (mechanical vapor recompression) compressor, a liquid outlet of the absorption tower is connected with the grading flash tank, a gas outlet of a first-stage flash cavity of the grading flash tank is connected with a carbon dioxide recovery unit, gas outlets of other flash cavities are connected with a gas inlet of the absorption tower, and a gas inlet of the absorption tower is connected with a gas outlet of the desorption tower. A liquid outlet of the grading flash tank is connected with a desorption tower, and a regenerated gas outlet of the desorption tower is connected with a buffer tank through an MVR compressor, so that regenerated gas is pressurized and then conveyed into the buffer tank; a gas outlet of the buffer tank is connected with the carbon dioxide recovery unit, and a steam outlet of the buffer tank is respectively connected with the grading flash tank and a reboiler of the desorption tower. The regeneration energy consumption can be reduced, and the equipment size can be reduced.

The utility model belongs to the technical field of coal gasification high-pressure flash steam purification, and particularly relates to a coal gasification high-pressure flash steam purification device. The purification section is arranged above the heat exchange section of the hot water tower, high-pressure flash steam subjected to heat exchange with grey water is washed and purified, ammonium salt and ash in the high-pressure flash steam are removed, meanwhile, the flushing device is arranged on the cooler, the tube pass of the cooler is flushed, and the heat exchange efficiency is improved. Ammonium salt and ash attached to the inner wall of the cooler tube pass are flushed, so that the cooler tube pass can be efficiently prevented from being blocked; and the cooled high-pressure flash steam is subjected to gas-liquid separation, so that ammonium salt, ash and moisture in the high-pressure flash steam are greatly reduced, the high-pressure flash steam is purified and fed into a compressor, and the load and damage frequency of the compressor are reduced.

The invention discloses a coal gasification black water multi-stage deep treatment device and method, and relates to the technical field of water treatment.The coal gasification black water multi-stage deep treatment device comprises a flash tank, a settling tank, a mixing and clarifying tank, a partition plate, an overflow opening, a mixing cavity, a clarifying and stirring mechanism, a pressing plate, a water inlet tank and a fixed bin, the two sides of the fixed bin are open, and an adjusting plate is clamped in the fixed bin and horizontally and freely slides in the fixed bin; a water storage space is defined by the adjusting plate, the fixed bin and the partition plate. According to the device, the pressing plate moves downwards, so that the pressing plate extrudes an extraction liquid in the mixing cavity, part of the extraction liquid enters the water storage space from the water inlet groove under the action of pressure, then along with downward movement of the pressing plate, the liquid level of the extraction liquid in the water storage space rises, and the extraction liquid flows into the clarifying cavity from the overflow port; after entering the water storage space, the extraction liquid loses the acting force of the stirring mechanism, so that a relatively large turbulence phenomenon is avoided, the extraction liquid can flow into the clarification cavity at a relatively low flow speed, and the clarification efficiency is prevented from being influenced.

The utility model relates to the technical field of drying and energy saving, and particularly discloses a cobalt nickel hydroxide or cobalt hydroxide drying system based on waste heat steam utilization, which comprises a mixing device, a steam rotary drying device, a dust removal device and a spray washing device which are connected in sequence, steam in the upstream flash evaporation process is subjected to deacidification treatment and then is introduced into a heat exchange tube bundle of the steam rotary drying device to serve as a heat source; the discharging end of the steam rotary drying device is respectively connected with a discharging branch and a material returning loop through a discharging screw; the material returning loop is connected to one feeding hole of the material mixing device, and the other feeding hole of the material mixing device is connected with a nickel cobalt hydroxide or cobalt hydroxide wet material conveying device. An indirect heat exchange mode is adopted, only a small amount of hot air is needed to serve as moisture-carrying gas, the tail gas amount is greatly reduced, meanwhile, damage to materials caused by direct contact with high-temperature hot air in a traditional drying mode is avoided, the physical property of the materials can be kept, and the particle size and quality of products are improved.

The invention relates to the technical field of aluminum oxide production, and discloses evaporation forced-effect jet flash evaporation equipment which comprises a storage tank, a heating box is arranged outside the storage tank, an air guide pipe is arranged on the side wall of the storage tank, a flash evaporator is arranged outside the air guide pipe, a conveying pipe is arranged in the heating box, and a flash evaporator is arranged in the conveying pipe. A discharging table is fixedly connected to the lower side of the flash evaporator, a mounting block is fixedly connected to the side wall of the flash evaporator, a flow dividing pipe is fixedly connected to one end of the mounting block, a guiding assembly is arranged on the side wall of the flow dividing pipe, and a flow guiding block is fixedly connected to the interior of the flow dividing pipe. The steam pushes the cleaning assembly to rotate, meanwhile, the steam firstly passes through the flow guide block, and tiny crystals mixed in the steam are preliminarily filtered under the filtration of the flow guide block, so that the effects of preheating the mother liquor in advance, realizing self-circulation of the mother liquor, reducing the use of a circulating pump and further reducing the power consumption of the device can be achieved.

The invention discloses a drainage flash heat supply system of a once-through boiler under low load and an operation method of the drainage flash heat supply system. The drainage flash heat supply system comprises a drainage flash control valve, a drainage flash tank, a heat supply steam throttle valve, an electric heater and a condensation drainage recirculation pump which are sequentially arranged behind a water storage tank. When a unit undertakes a peak regulation task and a boiler enters a wet state operation mode under an ultra-low load working condition, drain water generated by a steam-water separator is introduced into a flash evaporation heat supply system, generated high-pressure steam is used for industrial heat supply, the steam meets the requirements of pressure and superheat degree of industrial steam through a throttling valve and an electric heater, and the heat supply efficiency is improved. The drain water produced in the flash tank is re-introduced into the feed line through a condensed drain water recirculation pump. According to the system, power supply and heat supply can be decoupled during low-load operation of a unit, meanwhile, the stable combustion requirement of boiler operation is met, and the hydrodynamic safety of each water cooling wall is protected.

A refrigeration system includes one or more compressors (14,24), a gas cooler (105), a flash tank (106), one or more evaporators (12,22), a heat reclaim system (110), valves (120,122,124,126), and a control system (105). The heat reclaim system receives a working fluid from the one or more compressors and the gas cooler. The heat reclaim system is fluidly coupled, through a first supply line (111), to the one or mor compressors, and fluidly coupled, through a second supply line (113), to the gas cooler. The valves regulate a flow of the working fluid from the one or more compressors and the gas cooler to the heat reclaim system. The control system receiving at least one feedback signal from the heat reclaim system and, in response to the at least one feedback signal, operates the valves to regulate an amount of the working fluid circulated into the heat reclaim system from the one or more compressors and the gas cooler.

The invention relates to the technical field of chemical equipment, and discloses a sodium carbonate production system adopting an ammonia-soda process. The system for producing sodium carbonate by the ammonia-soda process comprises a thin liquid distillation tower and a flash evaporation module. The thin liquid distillation tower is used for discharging waste thin liquid; the flash evaporation module comprises a second flash evaporation device and a water injection assembly; a steam outlet of the second flash tank is communicated with a steam inlet of the thin liquid distillation tower; the water inlet end of the water injection assembly is communicated with the thin liquid distillation tower, and the water outlet end of the water injection assembly is located in the second flash tank and used for discharging waste thin liquid to flush flash steam in the second flash tank. According to the invention, by arranging the water injection assembly, the waste thin liquid discharged from the thin liquid distillation tower is introduced into the second flash tank for flushing flash steam in the second flash tank so as to flush away droplets in the flash steam, and the content of calcium ions introduced into the thin liquid distillation tower can be reduced, so that the calcium ions in the waste thin liquid are reduced and even eliminated; and the waste thin liquid discharged from the thin liquid distillation tower can be used as filtering washing water.

The invention discloses a device and method for preparing special isocyanate, the device comprises a synthesis device and a separation device, the synthesis device comprises a batching tank, a synthesis reaction kettle, a discharge filter, a discharge circulating pump, a sampler, a flash tank and a crude product conveying pump which are communicated in sequence, and an axial-flow stirrer and a parabolic stirrer are arranged in the synthesis reaction kettle; a catalyst basket is detachably and vertically fixed on the inner side wall of the synthesis reaction kettle; the separation device comprises a negative pressure separation tower, a tower top cooler, a gas-liquid bag, a condensate collecting tank and a tower top reflux pump which are sequentially communicated, and is also provided with a vacuum pump, a tower kettle circulating pump and a product conveying pipeline. The device and the preparation method have the beneficial effects of high synthesis reaction speed, simple and controllable production process, good crude product separation effect and low equipment energy consumption.

The utility model belongs to the technical field of asphalt modification, and particularly relates to a modification system for tar distillation asphalt, which comprises a tar distillation tower, a tubular furnace, a flash tower and a modified asphalt storage tank, and is additionally provided with an asphalt circulating tower, and the output end of the tar distillation tower is connected with the new material input end of the asphalt circulating tower; the liquid output end of the asphalt circulating tower is connected with the input end of the tubular furnace, the output end of the tubular furnace is respectively connected with the circulating material input end of the asphalt circulating tower and the input end of the flash tower, and the circulating material input end of the asphalt circulating tower and the input end of the flash tower are respectively provided with a stop valve. And the liquid output end of the flash tower is connected with the input end of the modified asphalt storage tank. According to the utility model, the asphalt circulating tower is additionally arranged, and the asphalt can be selectively conveyed into the asphalt circulating tower to be circularly heated or conveyed into the flash tower to be flashed by utilizing the stop valve on the tubular furnace, so that the quality of the modified asphalt is controllable.

The invention discloses an energy-saving kitchen solid residue treatment system and process, the energy-saving kitchen solid residue treatment system comprises a hydrothermal reactor, a flash evaporation reactor, a material buffer tank, a filter press, a demulsifier, an oil-water separator, an MVR evaporator, a drying machine, a mixing granulator and a heat pump recovery system, the flash evaporation reactor is communicated with the hydrothermal reactor, the material buffer tank is communicated with the flash evaporation reactor, and the material buffer tank is communicated with the filter press. The filter press is communicated with the material buffer tank, the demulsifier is communicated with the material buffer tank, the oil-water separator is communicated with the demulsifier, the MVR evaporator is communicated with the oil-water separator and the filter press, the drying machine is communicated with the filter press and the MVR evaporator, and the mixing granulator is communicated with the drying machine and the oil-water separator. The heat pump recovery system is communicated with the hydrothermal reactor, the flash evaporation reactor, the MVR evaporator and the drying machine. The conveying efficiency can be improved, the dewatering efficiency can be improved, the filter cloth is easier to clean, the drying efficiency is improved, the energy consumption required by drying is reduced, and pollution emission and resource waste are reduced.

The application discloses a helium low-temperature purification pressure building device and a pressure building method, which comprise a flash evaporation unit, a purification unit and a heat recovery unit connected in sequence. In the application, the product gas of the liquid air separator is used to build pressure for the adsorber under the regeneration pressure building in the high-pressure working state, so that the adsorber under the working state is prevented from charging pressure for the adsorber under the regeneration pressure building and the pressure of the adsorber under the working state is prevented from being lost. Since the pressure difference between the liquid air separator and the adsorber under the regeneration pressure building is large, the high-pressure impact is easy to cause the damage of the equipment, the pressure building process is arranged in the purification process, the time required for the pressure building is reduced, the adsorber under the working state is saturated, the adsorber under the regeneration state is built in pressure, automatic switching can be realized, the continuous production of the product high-purity helium gas is realized, and the use demand of the high-purity gas is met.

The invention provides a control method of a target test loop and a CO2 ice making test system, and belongs to the technical field of refrigeration circulation. The method comprises the following steps: acquiring a working condition and an ice surface load demand; determining a target circulation mode from a plurality of preset circulation modes based on the working condition and the ice surface load demand; controlling the opening and closing states of each valve in the valve module according to the connection relation of the compressor module, the oil separator, the exhaust pre-cooling module, the heat recovery module, the air cooler, the flash tank, the multiple heat regeneration modules, the ejector, the CO2 circulation module, the ice making module, the gas-liquid separator, the valve module and the throttling valve module; constructing a target test loop corresponding to the target circulation mode; determining a target control parameter set corresponding to the target circulation mode according to the working conditions; and adjusting the opening degree of the throttle valve module based on the target control parameter set so as to control the operation of the target test loop.

This invention discloses a method for efficiently extracting rare earth elements from mine sediment based on flash Joule heating technology, thus establishing a rare earth element extraction technology field. The method comprises the following steps: (1) drying and grinding the mine sediment to be extracted to obtain rare earth precursor powder; (2) heat-treating the rare earth precursor powder using flash Joule heating under a protective atmosphere, followed by cooling and grinding to obtain flash Joule-heat-treated rare earth powder; (3) activating the flash Joule-heat-treated rare earth powder in an acid treatment solution, filtering after activation, and collecting the filtrate to obtain a rare earth element extract. Using this invention, efficient extraction of rare earth resources from mine sediment can be achieved.

The invention discloses an ignition-free closed-cup flash point measuring system for petroleum products. The ignition-free closed-cup flash point measuring system comprises a sample pretreatment unit, a flash separation unit, a constant-temperature control unit, a flash point detection unit and a data processing unit which are communicated in sequence. The sample pretreatment unit is used for removing solid impurities and moisture in a petroleum sample; the flash separation unit is used for converting the pretreated sample into oil vapor and liquid components; the constant-temperature control unit maintains the temperature stability of the system; the flash point detection unit detects the flammable flash state of the oil vapor in an optical mode; the data processing unit records and analyzes the detection data to output a flash point value. The invention further provides auxiliary modules such as a circulating purification unit and a safety monitoring unit, efficient, accurate and safe measurement of flash points of various petroleum products such as gasoline, diesel oil and lubricating oil is achieved through pressure grading flash evaporation and precise temperature control, the detection period is short, the automation degree is high, and the device is suitable for rapid flash point analysis of laboratories and industrial sites.

The invention discloses a coal-to-methanol ash water treatment system and an optimization method. The coal-to-methanol ash water treatment system comprises a first water heater, a second water heater, a first flash evaporator, a third water heater and a vacuum flash evaporation device; an inlet of the first water heater is connected with a chilling chamber of the gasification furnace; an inlet of the second water heater is connected with a washing tower of a gasification section; an inlet of the first flash evaporator is connected with an air outlet of the first water heater and an air outlet of the second water heater; an inlet of the third water heater is connected with a liquid outlet of the first water heater and a liquid outlet of the second water heater; and the vacuum flash evaporation device is used for further treating liquid at the bottom of the third water heater. According to the method, the salt in the high-concentration brine can be recycled and converted into a product for resource recycling, so that the problem of hazardous waste treatment of crystalline solids in related technologies is solved, the treatment efficiency is improved, and the treatment cost is reduced.

This invention discloses a polycrystalline silicon reduction heat energy utilization system and method. The system includes a reduction furnace body, a base, a heat exchange jacket, an internal coil in the base, an external heat exchange jacket for the return water pipe, and a flash tank assembly. The internal coil in the base has a double-layer structure and is connected by a vertical pipe. The heat exchange jacket is divided into several arc-shaped jackets with parallel branch pipes equipped with solenoid valves. The jacket is equipped with vibrating plates and flow guides. The return water pipe is fitted with a heat exchange jacket with a flow guide plate. The drain pipe and return water pipe are respectively connected to different flash tanks. The method utilizes an infrared temperature sensor linked with a solenoid valve to achieve zoned temperature measurement and flow initiation. Through temperature-controlled vibration coordination, gradient heat exchange and water collection, and tiered flash evaporation for energy supply, heat energy from different parts is recovered and multi-level steam is generated according to the temperature gradient to meet diverse steam demand. This invention constructs a multi-dimensional heat energy recovery system, achieving efficient heat energy recovery and tiered adaptive energy supply, accurately controlling the furnace temperature, improving production continuity and stability, and has significant energy-saving and practical value.

The application provides a compressed air energy storage power generation system based on cascade utilization of photothermal heat compensation and flash evaporation, and relates to the technical field of energy storage power generation. Air is compressed by a multistage compressor through an air compression heat exchange unit, high-pressure air is obtained, heat generated by compressed air is absorbed by low-temperature water, high-temperature water is obtained, an expansion power generation system is used, a multistage expander is used, high-temperature heat conducting oil obtained by the high-temperature water and a photothermal heat collection unit is used to heat input high-pressure gas of each stage of the expander in sequence, power generation is performed, electric energy, exhaust gas of the last stage of the expander, medium-temperature water and low-temperature heat conducting oil are obtained, high-grade energy utilization is realized, heat of the medium-temperature water is converted into electric energy by a flash evaporation power generation system, medium-grade energy utilization is realized, low-grade energy utilization is realized through preheating, the problem that the existing compressed air energy storage power generation system cannot realize cascade utilization of high, medium and low-grade energy is solved, and the application is suitable for energy storage power generation.

The invention discloses a method and system for analyzing factors influencing radial expansion of flash jet flow of an oil injector, and relates to the field of oil injectors. Flash evaporation spraying images of the single-hole oil sprayer under different thermal working conditions are collected; the thermal working condition comprises injection temperature and environment pressure; obtaining a spraying width within a preset axial distance from a nozzle outlet according to the flash evaporation spraying image; establishing a nucleation rate model according to the injection temperature and the environment pressure; determining a nucleation rate index according to the nucleation rate model; taking the spray width as a measurement index of radial expansion, and establishing an incidence relation between the spray width and a nucleation rate index; according to the incidence relation, determining a factor influencing radial expansion: when the spray width is increased along with the increase of the nucleation rate index, the influence factor is the nucleation rate; when the spray width tends to be stable along with the increase of the nucleation rate index, the influence factor is heat energy required by vaporization.