3080 results about "Flash evaporation" patented technology

The invention discloses a cold and heat supply unit and process capable of deeply utilizing a heat source in the technical field of absorption refrigeration. The cold and heat supply unit comprises a refrigerating unit, a heating unit, a heat source flash tank and a high-pressure absorber. The refrigerating unit utilizes an external heat source to produce cold energy, the heating unit utilizes the heat source used by the refrigerating unit to produce cold energy so as to cool circulating water of the refrigerating unit, and the heat source flash tank utilizes the heat source discharged by the high-pressure absorber to heat; the absorption refrigerating unit is optimally designed, so that the absorption refrigerating unit can deeply utilize a heat source and supply cold and high-level heat energy at the same time, the problem that the heat source utilization rate of the unit is not high is solved, and the requirement for high-temperature heat energy in the production process is met; and low-grade waste heat is converted into cold energy and high-level heat energy, transition and upgrading of energy quality can be achieved, the unit has the cold and heat combined supply function, and the application scene is greatly expanded.

The utility model relates to the technical field of heat pump rectification, and particularly discloses a heat pump rectification system which comprises a rectification tower; the tower top gas liquefaction system comprises a compressor connected with a gas phase at the top of the rectifying tower, and a reboiler, a throttling device, a condenser and a flow divider which are sequentially connected with the compressor; liquid phase connection at the bottom of the rectifying tower is communicated with the reboiler, the tower bottom reboiling system comprises an auxiliary reboiler and a flash evaporator which are sequentially communicated with the reboiler, and the flash evaporator is communicated to the rectifying tower; and the gas phase at the top of the rectifying tower is heated by the compressor and then enters the reboiler to exchange heat with the liquid phase at the bottom of the rectifying tower, so that the rectifying energy consumption can be reduced, and the energy-saving effect is achieved.

The invention belongs to the technical field of energy storage, and relates to a compressed air and water coupled multi-energy co-production energy storage system and method, comprising an air compressor, a first heat exchanger, a second heat exchanger, an air turbine and a cooling module; a circulating medium of the first circulating loop is fused salt; the circulating medium of the second circulating loop is water, and the second circulating loop comprises a low-temperature water tank, a first booster pump, a second heat exchanger, a high-temperature water tank, a flash tank, a third heat exchanger, a steam turbine high-pressure cylinder and a heating module which are sequentially communicated end to end. Compression heat generated by compressed air can be stored in fused salt and water, special geographical conditions needed for storing high-pressure air are avoided, meanwhile, in the energy release stage, the stored water is used for flash evaporation and fused salt heating and then enters a steam Rankine cycle to do work, combined heat and power generation can be achieved in winter, combined cooling and power generation can be achieved in summer, and the energy-saving effect is achieved. Therefore, combined supply of different kinds of energy in different seasons is achieved, and the energy supply efficiency is improved.

The invention discloses a mixed utilization method of coal chemical gasification black water high-temperature flash steam, and relates to the technical field of black water flash evaporation. In the high-pressure section flash steam heat exchange process, the heat transfer temperature difference and the flow speed are dynamically adjusted through Bayesian optimization, the heat utilization rate of the high-temperature flash steam is maximized, the heat exchange efficiency is improved, and meanwhile in the catalytic reaction stage, the heat transfer temperature difference and the flow speed are dynamically adjusted through Bayesian optimization; heat input and reaction temperature of the catalytic device are regulated in real time based on the outlet temperature of the heat exchanger, so that heat energy distribution is more efficient, and heat waste is avoided; meanwhile, graded flash evaporation is carried out, steam is divided into high-pressure section heat exchange, medium-pressure section catalytic treatment and low-pressure section condensation recovery, and multi-level gradient utilization of energy is achieved; meanwhile, real-time prediction is carried out based on gas components and catalytic device loads, the feeding amount of the adsorbent is dynamically adjusted, resource waste is avoided, meanwhile, the conversion rate of acid gas is increased, and after low-pressure-section tail gas is subjected to condensation treatment, the condensate recovery rate is remarkably increased.

The invention discloses a purification process of phosphorus trifluoride. The purification process comprises the following steps: S1, heating liquid in a first storage tank, and pumping the heated liquid into a flash evaporator for flash evaporation; s2, introducing the flashed gas into a first rectifying tower for rectification, condensing the rectified top products phosphorus trifluoride and hydrogen chloride, and introducing the condensed top products into an intermediate first product storage tank; s3, pumping the material in the middle first product storage tank into a second rectifying tower for rectification, condensing the top gas rectified by the second rectifying tower, and introducing the condensed gas into the first product storage tank for storage; s4, a finished product in the first product storage tank is pumped into a gasifier to be gasified and enters a gas-liquid separation tank to be separated, and separated gas is discharged from the top and sequentially introduced into three phosphorus trifluoride purification devices to be purified; s5, the purified gas is introduced into a filter to be filtered, the filtered gas enters a filling system to be filled after pressure stabilization, impurities in phosphorus trifluoride can be completely removed, and the purity of phosphorus trifluoride is improved in a jumping mode.

The invention discloses a digital pressure pulse thermal processing system for preparing compound seasoning, which relates to the field of food thermal processing and comprises seven parts, namely a batching kettle, a reaction kettle, a buffer tank, a condenser, a flash tank, a weighing pressure tank and a vacuum balance tank, and a central control system, the seven parts, all the pipelines, automatic valves on all the pipelines and corresponding sensors on the seven parts form nine systems, namely a feeding system, a stirring system, a material spraying and returning system, a water-oil fractionation and recovery system, a discharging system, a heating system, a circulating cooling system, a distillation system and a vacuum system through different combination modes; the central control system is connected with and controls the nine systems, the automatic valves on the pipelines and the corresponding sensors and the automatic valves on the seven components; therefore, the temperature rise and drop, high-temperature positive pressure, high-temperature negative pressure and the flash evaporation process with adjustable intensity and frequency of the reaction kettle are realized. The extraction and reaction efficiency in the hot working process of the compound seasoning is remarkably improved.

The invention discloses a vacuum degree micro pressure difference control method and device for desulfurization slurry flash evaporation deep heat recovery, and belongs to the technical field of coal-fired boiler and kiln waste heat heat supply. The system aims at solving the problems that when desulfurization slurry flash evaporation is adopted for boiler flue gas waste heat recovery, much non-condensable gas such as SO2 can escape due to heat release and condensation, the volume of a vacuum system is relatively large, and consequently the high vacuum degree is difficult to maintain by adopting a conventional vacuumizing device, a special micro-differential pressure vacuum pump is added, and the vacuum degree is reduced; extracting non-condensable gas on the liquid level of the condensed water of the last-stage heater, and sending the non-condensable gas to a front-mounted heater matched with the last-stage flash tank; an alkali liquor spraying device is arranged inside or outside the heater to absorb and remove SO2 and other components so as to reduce the partial pressure and the total amount of non-condensable gas, a micro-differential pressure vacuum pump and a conventional vacuum pump are adopted to stably maintain the vacuum degree required by each stage of flash evaporation tank, the temperature of a concentrated slurry outlet of the final stage of flash evaporation tank is greatly reduced, and the concentration effect of the final stage of flash evaporation tank is improved. And optimal operation conditions are created for greatly reducing the exhaust gas temperature and greatly improving the waste heat recovery amount.

The invention relates to a compact ship tail gas carbon dioxide capture system and method, and the compact ship tail gas carbon dioxide capture system comprises a flue gas pretreatment unit, a hollow fiber membrane reactor absorption unit, a flue gas heat exchange unit, a multi-stage flash evaporation desorption unit, a CO2 compression liquefaction unit and a CO2 storage lightering unit. The compact ship tail gas carbon dioxide capture system has the advantages that the occupied area of the system is reduced, the operation cost of the system is reduced, and efficient capture of ship tail gas CO2 is achieved.

The invention discloses a cold and heat quadruple supply system and a control method thereof, belongs to the technical field of refrigerating and heating devices, and is designed for solving the problems that cold and heat demand time is not matched and the like. The cold and heat quadruple supply system comprises a first unit used for cooling and heating and comprising a cold and heat all-in-one machine; the second unit is used for supplying high-temperature hot water and comprises a high-temperature heat pump; and the third unit is used for supplying high-temperature steam and comprises a flash tank and a steam compressor. According to the cold and heat quadruple supply system and the control method thereof, cold water, heat supply, hot water and high-temperature steam can be prepared at the same time, the problem that cold and heat demand time is not matched is solved, and use is more convenient; and the operation state and the heat storage and cold storage conditions of the unit can be determined according to the cold quantity and the heat quantity actually required by a user, so that the operation energy consumption is reduced.

The invention belongs to the field of heat pumps, and provides an integrated cooling and steam supply system which comprises a waste heat drive type absorption refrigerator and a first direct generation type high-temperature steam heat pump which are in bidirectional connection. The waste heat drive type absorption refrigerator comprises a first generator, a first evaporator, an absorber and a first condenser. The first direct generation type high-temperature steam heat pump comprises a first compressor, a throttling mechanism, a steam generator and a water vapor compressor. By absorbing waste heat in the technological process, cooling of an input medium and preparation of high-pressure steam are achieved, recycling of heat is completed, emission of pollutants is reduced, and the energy utilization efficiency is improved; through the first direct generation type high-temperature steam heat pump, loss caused by a conventional flash evaporation process is avoided, and the overall efficiency of the system is improved; the absorber and the first condenser serve as evaporators of the high-temperature steam heat pump, the intermediate circulating water heat exchange process is avoided, and the heat exchange efficiency is improved.

According to the gasification fine slag dewatering and drying method and system based on the fluidized bed dryer, gasification fine slag with high water content can be dewatered and dried, the energy utilization rate is high, and waste of water resources is little. The method comprises the following steps: 1) carrying out flash evaporation concentration, sedimentation and filtration dehydration on the coal gasification black water in the black water treatment unit; (2) gasified fine slag to be treated is fed into a fine slag preheater to be subjected to heat exchange with a heating medium; 3) carrying out heat exchange on the preheated gasified fine slag and the superheated steam in a fluidized bed dryer to obtain dried gasified fine slag and secondary steam; 4) feeding the secondary steam into a secondary steam dust removal unit for dust removal treatment, and then feeding the secondary steam into a fine slag preheater; (5) the secondary steam output by the fine slag preheater is fed into a steam preheater for heat exchange, and preheated secondary steam is obtained; (6) the preheated secondary steam is fed into a steam superheater to be subjected to superheating treatment, and superheated steam is obtained; and feeding the superheated steam into a fluidized bed dryer.

The invention relates to the technical field of coal chemical industry, in particular to a coal gasification black water circulation and black water waste heat recycling system and method. The coal gasification black water circulation and black water waste heat recycling system comprises a synthesis gas washing tower, a high-pressure flash tank, a low-pressure flash tank, a black water heat exchanger, a vacuum flash tank, a settling tank, a grey water tank, a low-pressure flash steam stripping tower and a high-pressure flash steam stripping tower. The coal gasification black water treated by the coal gasification black water circulating and black water waste heat recycling system can be reused as circulating water of a synthesis gas washing tower, so that the cyclic utilization of water resources is realized, the use of fresh water and the discharge of waste water are reduced, and the production cost and the environmental pressure are reduced. Meanwhile, the problem that a black water pipeline is scaled and blocked due to high temperature is solved, waste heat of the black water can be fully replaced for effective utilization, carbon is reduced, energy is saved, the purpose of cooling the black water is achieved, the cooling cost of a vacuum flash evaporation system is saved, and continuous and reliable economic benefits are created for enterprises.

The invention discloses a system and a method for separating ammonia, ethanolamine and water, which belong to the technical field of ammonia still separation, and are characterized in that a shell-and-tube heater is arranged in a flash tank, a reactor a and a reactor b are respectively arranged on two sides of the flash tank, the reactor a is communicated with the flash tank through a pipeline a, the reactor b is communicated with the flash tank through a pipeline b, and the reactor b is communicated with the flash tank through a pipeline b. The problems that separation is difficult, the separation cost is high and the operation period is short are solved, the problems that an existing plate tower is low in separation efficiency and high in energy consumption, silk screen filler is prone to corrosion and the operation period is short are solved, and the device is mainly applied to separation of ammonia, ethanolamine and water.

The utility model discloses a flash evaporation compression waste heat recovery system suitable for industrial waste liquid, belongs to the technical field of waste heat recovery of industrial waste liquid, and particularly relates to waste heat recovery from a waste water heat source with a high-pollution medium. The problem that in the prior art, in the field of industrial waste liquid waste heat, especially in the field of waste heat recovery of water for heat compensation of heating return water or process water, a reasonable waste heat recovery and waste water recycling mode is lacked so that consumption of energy, water resources and operation cost can be reduced is solved. The system comprises a flash tank; a flash evaporation steam outlet of the flash evaporation tank is communicated with a gas inlet of the compressor through a flash evaporation steam pipe; and a gas outlet of the compressor is communicated with a steam inlet of the spray tower. The flash evaporation compression waste heat recovery system suitable for the industrial waste liquid is suitable for recovering waste heat of the industrial waste liquid.

The invention provides a system and a method for producing high-purity electronic-grade carbonic ester, and the system comprises a heterogeneous reaction section, a separation section and a crystallization section along the material flow direction, the heterogeneous reaction section is used for carrying out heterogeneous reaction on ethylene oxide and carbon dioxide to prepare carbonic ester; the separation section is used for separating materials from the heterogeneous reaction section and comprises a flash evaporation unit and a rectification unit in the material flow direction, and the flash evaporation unit comprises at least one flash evaporation tank; the rectification unit comprises at least one rectification tower, and the side-draw of the rectification unit is communicated with the feed port of the crystallization section; and the crystallization section is used for crystallizing and purifying the material mainly containing carbonic ester from the separation section. According to the method, high-purity ethylene carbonate used as a power battery can be obtained from the crystallization section, and crystallization mother liquor can be selectively returned to the separation section to be concentrated. The method can effectively improve product purity, reduce product chromaticity and reduce energy consumption, and can be applied to industrial production of carbonic ester.

The invention relates to the technical field of rectification, in particular to a rectifying tower for cracking C9 fractions, which comprises a tower body and a tower plate, the tower plate is arranged in the tower body, a CPD extraction device is arranged at the top end of the tower body, a DCPD side line extraction device is arranged in the middle of the tower body, and the lower part of the tower body is communicated with a solvent side line extraction device; a partition plate is arranged in the bottom end of the tower body, the space at the bottom of the tower body is divided into a flash evaporation space and a concentration space by the partition plate, the flash evaporation space is communicated with a C9 fraction supply pipeline through a cracking reactor, and the flash evaporation space is communicated with a tower kettle liquid return pipeline; a solvent extracted by the solvent side-draw device is mixed with tower bottoms extracted from the tower bottoms reflux pipeline, and then is heated by the reboiler and refluxed to the concentration space, and the concentration space is provided with a tower bottoms discharge pipeline; the influence of coking of materials in the rectifying tower or polymers on the rectifying operation can be reduced, and the stability of the rectifying operation is ensured.

The utility model discloses a heat source optimizing device for a reboiler of a methanol pre-rectifying tower, which comprises the pre-rectifying tower and the reboiler, and is characterized in that a branch pipeline is separated from the crude methanol discharge of a tower kettle and is connected with a negative pressure flash tank, and the crude methanol in the negative pressure flash tank is subjected to gas-liquid separation through flash evaporation; the bottom of the negative-pressure flash tank is connected with a methanol circulating pump, and a liquid-phase material is conveyed to a first heat exchanger at the top of the tower and returns to the negative-pressure flash tank after exchanging heat with steam at the top of the tower; a gas-phase material in the negative-pressure flash tank enters a compressor, is compressed and heated and then returns to the tower kettle of the pre-rectifying tower; according to the utility model, the process is improved by combining flash evaporation of a tower kettle discharge part with heat pump rectification, and meanwhile, the flash evaporation liquid is recycled to recycle steam heat at the top of the tower, so that the steam consumption of a reboiler of the methanol pre-rectifying tower and the use amount of circulating water at the top of the tower are effectively reduced, meanwhile, the reboiler does not need to be added, and the compression ratio of a heat pump compressor can be reduced.

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 utility model relates to a two-stage isolation water seal, saturated vapor pressure driving and flash evaporation automatic sealing safety water cutting system for a liquefied hydrocarbon storage tank, and aims to ensure safe oil-water distribution. The liquefied hydrocarbon storage tank area pressure storage tank is connected in series with each automatic water cutting unit and then is connected with the sewage collection unit; the top of the sewage tank and the top of the water draining tank are respectively communicated with a safety release pipeline through a safety release valve and a bypass control valve; and an intelligent controller for controlling the sewage in the sewage tank to discharge liquefied hydrocarbon in a flash evaporation manner to the safety release pipeline under the primary isolation water seal and the saturated vapor pressure to drive the self-water-cutting tank to cut water and controlling the sewage in the sewage tank to be pressurized and discharged to the interface detection sensor to monitor the water level through the nitrogen pressurizing valve pipeline after discharge under the secondary isolation water seal is configured. The device has the advantages that liquefied hydrocarbon forming fire hazards does not exist in finally discharged sewage, and safe operation is ensured.

The invention discloses an alkaline electrolysis water hydrogen production system and method capable of deeply reducing the hydrogen content in oxygen in multiple ways, a hydrogen side flash tank is arranged in the alkaline electrolysis water hydrogen production system, and dissolved hydrogen deep removal is carried out on hydrogen side alkali liquor passing through a gas-liquid separator through the hydrogen side flash tank; a mixed alkali liquor flash tank is arranged in an alkaline electrolysis water hydrogen production system, and deep removal of dissolved oxygen and dissolved hydrogen is carried out on mixed alkali liquor through the mixed alkali liquor flash tank; a hydrogen side pressure adjusting part capable of adjusting the pressure of a cathode chamber is arranged in a hydrogen side gas-liquid separator system, and an oxygen side pressure adjusting part capable of adjusting the pressure of an anode chamber is arranged in an oxygen side gas-liquid separation system, so that the pressure of the anode chamber of the alkaline electrolytic cell is higher than that of the cathode chamber, and the amount of hydrogen entering the anode chamber from the cathode chamber through a diaphragm is reduced; the concentration of hydrogen in oxygen in the water electrolysis hydrogen production system is reduced, and the safety of the system is improved.

The invention discloses a steam compression system and a control method thereof. The steam compression system comprises a flash tank, at least one stage of steam compressor and a first water circulation pipe. The flash tank is used for enabling the steam generation water heated to the specified flash temperature to be subjected to flash evaporation under the negative pressure condition in the tank to become low-pressure steam; the steam compressor is used for compressing the low-pressure steam into superheated steam of which the saturation pressure is target condensing pressure; and the first water circulating pipe is used for guiding water of a target water source to motors of the steam compressors at all levels and exchanging heat with heat dissipation mechanisms of all the motors, and the water subjected to heat exchange returns to the target water source. Compared with the prior art, heat at the motor is recycled through water circulation, so that the enthalpy value of water for steam generation is increased, energy consumption needed by steam generation is reduced, and the comprehensive energy efficiency of the system 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 relates to a thermal power generating unit and pressure-bearing heat storage coupling system and an operation method.The system comprises a unit subsystem and a heat storage and supply subsystem, the heat storage and supply subsystem comprises a heat storage loop, a heat storage tank, a flash evaporation steam supply loop and a heat exchange hot water supply loop, and the heat storage loop comprises a steam-water heat exchanger, a first mixing heat exchanger and a first booster pump; a steam inlet of the steam-water heat exchanger communicates with the cold re-extraction branch pipe and the hot re-extraction branch pipe, and a high-pressure water inlet and a drainage outlet of the steam-water heat exchanger communicate with a high-pressure water outlet and a drainage inlet of the first mixing heat exchanger correspondingly. A heat storage water outlet and a heat storage water inlet of the heat storage tank communicate with a high-pressure water inlet of the first mixing heat exchanger and a high-pressure water outlet of the steam-water heat exchanger correspondingly, and the flash evaporation steam supply loop and the heat exchange hot water supply loop are used for load rising peak shaving and frequency modulation. The variable load rate of the unit is improved, and frequency modulation of the unit is achieved; and the peak regulation capacity of the unit is improved, and ultra-wide load peak regulation of the unit is achieved.

The invention discloses a carbon capture heat exchange energy-saving method and a carbon capture energy-saving system. The carbon capture heat exchange energy-saving method comprises the following steps: dividing barren liquor discharged from a desorption tower into a first part of barren liquor and a second part of barren liquor, and adjusting the flow ratio of the first part of barren liquor to the second part of barren liquor; the first part of barren liquor is used for flash evaporation, and a gas phase after flash evaporation is pressurized and then conveyed into a desorption tower; a liquid phase obtained after flash evaporation of the first part of barren liquor and the second part of barren liquor are conveyed into a heat exchanger and exchange heat with rich liquor discharged from an absorption tower in the heat exchanger, the rich liquor obtained after heat exchange is conveyed into the desorption tower, and the barren liquor obtained after heat exchange is conveyed into the absorption tower. According to the carbon capture heat exchange energy-saving method provided by the embodiment of the invention, the utilization rate of the heat of the high-temperature barren liquor discharged by the desorption tower can be improved, and more surplus heat can be used for regeneration desorption of the rich liquor.

The invention provides a coal chemical industry gasified black water energy recovery system which comprises a high-pressure flash tank, a black water liquid expansion machine, a vacuum flash tank, a vacuum flash condenser, an extractor and a hot water tower, and the high-pressure flash tank is provided with a gasified black water inlet, a high-temperature steam outlet and a low-temperature black water outlet. The black water liquid expansion machine is provided with a low-temperature black water inlet, a superheated steam outlet and a normal-pressure saturated black water outlet, the vacuum flash tank is provided with a normal-pressure saturated black water inlet, a low-temperature steam outlet and a saturated liquid black water outlet, and the vacuum flash condenser is provided with a low-temperature steam inlet, an uncondensed gas outlet and a condensed water outlet. The extractor is provided with a high-temperature steam inlet, a mixed steam inlet and a steam-water mixture outlet, and the hot water tower is provided with a steam-water mixture inlet, a fresh water inlet, a conversion condensate inlet, a hot water outlet and a grey water outlet. The energy recovery efficiency is greatly improved, the performance of the vacuum system is optimized, the black water concentration effect is improved, and efficient circulation of water resources and full recovery of black water energy are achieved.

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.

The invention provides a ship LNG fuel supply and tail gas carbon dioxide capture system. The ship LNG fuel supply and tail gas carbon dioxide capture system comprises an LNG storage tank, a CO2 separation device, a CO2 compressor, an ejector, an LNG vaporization heater, a mixed gas heat exchanger, a flash tank, a liquid CO2 storage tank, a flue gas heat exchanger and an engine. According to the system, LNG cold energy and engine tail gas heat energy can be effectively utilized, and the energy consumption of the system is reduced.

The present invention relates to a method for synthesizing graphene, and more particularly, to a method for synthesizing graphene by flash Joule heating (FJH). Such methods may be used to synthesize disordered graphene in large volumes, including low-defect disordered graphene. Such methods may further be used in the synthesis of composite materials and 2D materials.

The utility model discloses an integrated grading flash evaporation deep heat recovery device for high-salt, high-scale and high-corrosion slurry, and belongs to the technical field of industrial energy conservation and desulfurization slurry waste heat heat supply. According to the integrated equipment, in order to solve the problems that due to graded flash evaporation and graded heat removal, the final-stage vacuumizing difficulty is too large, equipment assemblies are too many, the occupied area is too large, the manufacturing cost is too high, and operation and maintenance are difficult, flash evaporation tanks are combined into an integral graded flash evaporation tank, and a flash evaporation steam heater is combined into an integral graded heater; furthermore, all the components are combined into an integrated tank body, and all functional areas are separated by adopting partition plates. A first-stage special micro-differential pressure vacuum pump is added, and non-condensable gas of the last-stage heater is pumped out and sent to an inlet of the previous-stage heater or a conventional vacuum pump; alkaline water is sprayed to a space, where non-condensable gas is enriched, of a final-stage heater to absorb SO2 and reduce partial pressure, so that the temperature of a concentrated slurry outlet and the smoke exhaust temperature of a final-stage flash tank can be greatly reduced. The device is suitable for the fields of coal-fired boilers, sintering machines and industrial kilns requiring waste heat recovery.

The utility model discloses an air source heat pump system adopting a flash evaporator. The air source heat pump system comprises a compressor, a four-way reversing valve, a water side heat exchanger, the flash evaporator, an electronic expansion valve, an air side heat exchanger, a gas-liquid separator, a first electromagnetic valve, a second electromagnetic valve and a throttling mechanism. During defrosting, if the low pressure is too low, the low pressure can be increased by different amplitudes by controlling the first electromagnetic valve and the second electromagnetic valve, so that the low pressure of the system is controlled to be in a safe area all the time; the compressor is effectively prevented from being abraded in the defrosting process, or the heat exchanger is effectively prevented from frost cracking caused by local icing in the heat exchanger due to too low low pressure in the defrosting process of plate exchange, sleeve and shell and tube heat exchange.