47results about "Steam generation" patented technology

The invention belongs to the technical field of industrial waste heat recovery, and particularly relates to a two-stage heat exchange dead steam waste heat recovery system based on an annular water curtain, which comprises a first-stage condensation collection heat exchange module, a second-stage condensation collection heat exchange module, a first-stage flash cap and a second-stage flash cap, the first-stage condensation collection heat exchange module is connected with the second-stage condensation collection heat exchange module in series, the first-stage flash cap is installed on the top of the first-stage condensation collection heat exchange module, and the second-stage flash cap is installed on the top of the second-stage condensation collection heat exchange module. Through the two stages of annular water curtains, exhaust steam gradient condensation is achieved, pipeline specification matching and operation control are optimized, the heat exchange efficiency and the system stability are improved, the manual operation intensity is reduced, the problems that an existing single-stage heat exchange efficiency is low, the sealing performance is poor, and parameters are difficult to control are effectively solved, and the energy utilization rate is remarkably increased.

The utility model relates to thermal power plant waste heat utilization technical field discloses a steam compression waste heat utilization system, including desulfurizing tower, the lower part of desulfurizing tower is passed through pipeline and is communicated with the input end of flash tank, the steam output end of flash tank is connected with steam compressor, steam compressor is communicated with heat user through pipeline, the water outlet of flash tank is communicated with the upper part of desulfurizing tower, the utility model utilizes the waste heat of high temperature water to produce flash steam, and adds pressure to flash steam for industrial steam, recycles waste heat and precious water data, and the economic benefit is produced to the steam supply to the outside, and the steam supply parameter is not influenced by unit load, and need not increase the water consumption index of power plant.

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 utility model provides an efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and a high-temperature heat pump, and belongs to the technical field of energy systems. The problem that an existing steam supply system cannot generate green steam energy is solved. Comprising a shallow ground source heat pump system and a high-temperature heat pump system which are connected in series, the shallow ground source heat pump system comprises a buried pipe heat exchange system, a ground source side automatic make-up pump, a water collector, a ground source side circulating water pump, a water segregator and a ground source heat pump host, and the buried pipe heat exchange system is connected with the water collector and the water segregator; the high-temperature heat pump system comprises a heat source side circulating water pump, an evaporator, a compressor, an electronic expansion valve, a condenser, a flash evaporator, a high-temperature hot water circulating pump, a preheater and a high-temperature heat pump automatic make-up pump; according to the utility model, renewable geothermal energy and certain electric energy are utilized for assistance, high-temperature steam is output, the production load requirement of the park is met, carbon emission is avoided, carbon sink is increased, and the economic benefit is high.

The invention discloses a heat pump system of a low-temperature methanol washing heat regeneration tower. The cost can be reduced. A tower kettle liquid pump sends tower kettle liquid into a high-temperature flash tank, the saturation temperature in the tower kettle liquid flash process is reduced to be lower than the tower top gas temperature, after flash evaporation, a gas phase enters a high-temperature compression stage front demister, a liquid phase enters a high-temperature evaporator, the tower kettle liquid passing through the high-temperature evaporator absorbs heat to form a gas phase and a liquid phase, the gas phase part enters the high-temperature compression stage front demister, and the liquid phase part enters the high-temperature compression stage front demister. The liquid phase enters a low-temperature flash tank, the saturation temperature of the tower kettle liquid in the low-temperature flash tank is reduced again, the gas phase enters a low-temperature compression demister after flash evaporation, the liquid phase enters a spraying pump, and the material entering the spraying pump enters a sprayer after being pressurized; methanol steam demisted by the low-temperature compression stage front demister is compressed by the low-temperature compression stage, the saturation pressure is increased, the methanol steam is overheated and then enters the high-temperature compression demister, and a gas phase of the high-temperature compression stage front demister enters the high-temperature compression stage, is compressed and then converges with liquid of the spray thrower to return to the tower kettle.

The utility model discloses a flash removal integrated waste water heat pump, which belongs to the technical field of heat pumps and is characterized in that a demister is arranged in a flash tank, dead steam generated by the flash tank provides a heat source for a heat pump positioned below the flash tank through inverted U-shaped flash steam channels, and a plurality of inverted U-shaped flash steam channels are connected through a gas passing tank; and the gas passing tank is connected with the heat pump through a plurality of pipelines. The concentrated solution obtained after the desulfurization slurry is treated by the flash tank is conveyed back to the desulfurization tower to be circularly sprayed, so that resource waste caused by traditional direct waste is avoided, and the slurry utilization rate is remarkably increased; meanwhile, the structure of a steam pipeline is simplified, for example, an inverted-U-shaped flash steam channel and a gas passing tank are intensively guided, and pipeline redundancy and maintenance blind areas caused by split equipment are avoided; liquid level monitoring and backwashing self-cleaning functions are built in the system, the design of an access door and a lifting lug is combined, centralized management and rapid maintenance are supported, and the operation and maintenance complexity is reduced.

The heat recovery system is used for recovering heat of the reduction furnace, the reduction furnace comprises a furnace barrel and a base plate, an original furnace heat recovery system comprises a tail gas heat exchange unit and a base plate heat exchange unit, the base plate heat exchange unit comprises annular pipes and flange connecting pieces, the annular pipes comprise the first annular pipe and the second annular pipe, the first annular pipe is arranged close to the base plate, and the second annular pipe is arranged close to the base plate. The second ring pipe is far away from the chassis, and the first ring pipe and the second ring pipe are separated through a flange connecting piece; the tail gas heat exchange unit comprises a first tail gas jacket and a first flash tank, the first tail gas jacket is communicated with a second ring pipe, and the second ring pipe is communicated with the first flash tank. According to the heat recovery system of the reduction furnace, the heat recovery utilization rate is high, and the improvement cost is low.

The invention relates to the technical field of electrolytic hydrogen production, in particular to an electrolyte cooling device and method for an electrolytic hydrogen production system, and the device comprises a flash tank which is internally provided with a liquid level sensor; the electrolyte input pipeline is communicated with the flash tank, and a first one-way valve is arranged on the electrolyte input pipeline, so that the electrolyte flows from the electrolyte input pipeline to the flash tank in a one-way manner; the steam output pipeline is communicated with the flash tank, and a first valve is arranged on the steam output pipeline and used for connecting or disconnecting the steam output pipeline; the process gas input pipeline is communicated with the flash tank, and a second valve is arranged on the process gas input pipeline and used for communicating or cutting off the process gas input pipeline; and the electrolyte output pipeline is communicated with the flash tank, a second one-way valve and a pressure pump are arranged on the electrolyte output pipeline, and the second one-way valve enables the electrolyte to flow from the flash tank to the electrolyte output pipeline in a one-way mode. The flash evaporation cooling principle is adopted to replace a traditional heat exchange pipe cooling mode, heat energy loss in the heat exchange process is reduced, and the cooling efficiency is greatly improved.

The invention discloses a chilled water heat exchange system and method.The system comprises a flash valve, a compressor, a first recovery device, a second recovery device and a third recovery device, the first recovery device, the second recovery device and the third recovery device are sequentially communicated and used for circulating chilled water, and the first recovery device comprises a first heat exchanger and a second heat exchanger which are arranged in parallel; the first recovery device comprises at least one heat utilization device with chilled water as a heat source, the second recovery device comprises at least one heat utilization device with chilled water as a heat source, the third recovery device comprises a third heat exchanger, and the first heat exchanger, the second heat exchanger, the third heat exchanger, the flash valve and the compressor are communicated in sequence to form a heat exchange loop for butene circulation, the butene is used to heat the chilled water flowing through the first heat exchanger and the second heat exchanger and to cool the chilled water flowing through the third heater. According to the application, effective utilization of low-grade heat energy of the quenched water can be realized.

This invention provides a solar-thermal combined ammonia absorption cogeneration system, relating to the field of thermal system technology. The solar-thermal combined ammonia absorption cogeneration system includes a heat collection and storage subsystem, an energy storage subsystem, a refrigeration subsystem, and a power generation subsystem. The heat collection and storage subsystem is adapted to use solar energy to heat a heat-conducting medium to store a large amount of heat, and some of this heat can be used for heating. The energy storage subsystem is adapted to use the heat from the heat-conducting medium to heat a concentrated ammonia solution and separate it, generating a dilute ammonia solution and liquid ammonia. The refrigeration subsystem is adapted to use the throttling expansion process of liquid ammonia to absorb heat from the cold storage medium and store the cold energy. The power generation subsystem is adapted to use the heat from the heat-conducting medium to heat liquid ammonia to generate high-pressure ammonia vapor, and use the high-pressure ammonia vapor to drive a generator set to generate electricity. By applying the solar-thermal combined ammonia absorption cogeneration system provided by this invention, it is possible to utilize renewable energy for the combined supply of cold, heat, and electricity, thereby improving energy efficiency.

The present disclosure teaches a system and method for generating power by a thermal power plant. The system and method includes a fuel heating chamber configured to receive a nano-thermite fuel, an induction assembly configured to inductively heat the fuel in the fuel heating chamber, and an electricity generating subsystem configured to convert heat from the heated nano-thermite fuel into electricity.

The utility model discloses a heat energy recovery system capable of reducing flash evaporation heat of steam condensate water, which comprises a condensate water tank used for recovering flash evaporation steam generated in a saccharification workshop for beer production; and the water source heat pump is connected into the first flash evaporation opening of the condensate water tank, flash evaporation steam of the condensate water tank is condensed and cooled into condensate water, and heat absorbed by the water source heat pump is used for heating water in the heat energy center. According to the steam condensate recovery device, the steam condensate recovery efficiency is improved.

This utility model provides a heat pump energy-saving device for a paper production line, including a first heat pump unit, a second heat pump unit, and a flash tank. The second condenser (9) of the second heat pump unit is located inside the flash tank (10). The steam condensate discharge pipeline of the paper production line is connected to the water inlet of the flash tank (10) through a water pipe. The first evaporator (5) and the second evaporator (4) are connected through a water pipe. The bottom and top of the first condenser (8) are connected to the bottom and top of the flash tank (10) through a water pipe. This device effectively recovers and reuses the residual heat contained in the condensate discharged from the paper production line, thereby improving energy utilization efficiency, reducing production costs, and achieving the goal of energy saving and emission reduction.

The invention discloses a wastewater treatment device for steam production of a coal-fired boiler, and belongs to the technical field of wastewater multistage treatment, the wastewater treatment device comprises a cone, the outer wall of the cone is fixedly connected with a plurality of supporting legs, the top of the cone is hermetically connected with a cylinder, and the side wall of the cylinder is provided with a plurality of supporting legs. A first input pipe used for guiding in steam and a second input pipe used for guiding in waste water are obliquely and symmetrically communicated in the tangential direction, so that rotational flow is formed in the cylinder, the top of the cylinder is communicated with an output pipe, and a drawable filter screen is arranged at the position, located above the first input pipe, of the inner wall of the cylinder. High-temperature and high-pressure water of the coal-fired boiler body is subjected to primary flash evaporation in the heating box, and is jointly guided into the cylinder together with steam generated by continuous heating of the heater for secondary enhanced flash evaporation, so that stepped utilization of energy is realized, particularly the introduction of a vibration cavitation effect is realized, the water is explosively vaporized, and the energy utilization rate is improved. And the overall flash evaporation rate and the steam yield are remarkably improved fundamentally.

This invention discloses a highly stable carbon dioxide capture system and method based on a multi-stage flash evaporation process, relating to the field of gas separation and emission reduction technology. The system includes a carbon dioxide absorption tower, an intermediate buffer tower, a low-pressure flash evaporation tower, a carbon dioxide desorption tower, a flash tank, a compressor, and a vortex tube, all connected sequentially by pipelines. After CO2 is captured in the absorption tower, the rich liquid enters the intermediate buffer tower. The top gas phase undergoes low-pressure flash evaporation to obtain high-purity CO2 product, while the bottom semi-lean liquid is partially recirculated for absorption and partially regenerated through desorption. The regenerated hot lean liquid undergoes secondary flash evaporation in the flash tank, and its gas phase is compressed and energy-separated by the vortex tube. The hot and cold streams are reused for absorption cooling and desorption heating, respectively. This invention achieves efficient CO2 capture, absorbent stability, and significant energy savings through a unique multi-stage flash evaporation-regeneration process and a flash-compression composite vortex tube high-efficiency energy mode.

The utility model relates to the technical field of steamer type vulcanizing machines, in particular to an external temperature condensate discharge waste heat recovery device of a steamer type vulcanizing machine, which saves steam heat, reduces steam consumption, saves steam and reduces waste. Comprising a liquid storage tank, a connecting pipe, an emptying assembly, a filtering assembly and a recycling assembly, the upper portion of the liquid storage tank is connected with the connecting pipe, the connecting pipe is connected with a condensate draining opening of a vulcanizing machine steamer, the top of the liquid storage tank is connected with the emptying assembly, the filtering assembly is installed in the liquid storage tank, and the bottom of the liquid storage tank is connected with the recycling assembly.

The utility model discloses a device for preventing a tube bundle of a high-temperature reheater from shaking, which belongs to the field of high-temperature reheaters and comprises a rectangular upper support plate and a rectangular lower support plate which are oppositely arranged in parallel, the upper support plate and the lower support plate are fixedly connected through two adjusting rods, and clamping pieces are arranged on the long edges of the upper support plate and the lower support plate and deviate from reheater tubes. One end of each adjusting rod is rotationally connected with the upper end face of the lower supporting plate, the two adjusting rods are installed on the short edge of the lower supporting plate, adjusting holes are formed in the positions, corresponding to the adjusting rods, of the upper supporting plate, and the free ends of the adjusting rods penetrate through the adjusting holes and are connected with the upper supporting plate through connecting pieces; the upper supporting plate and the lower supporting plate are provided with a plurality of mounting bases at equal intervals corresponding to the outermost side pipe of the reheater pipe row, and fixing pieces are fixedly connected to the side faces of the mounting bases. After installation is completed, the arrangement mode or the structure of the tube bundle cannot be affected, normal functions of the tube bundle can be guaranteed, front-back displacement of the tube bundle is effectively limited, and the problem of shaking of the tube bundle is fundamentally solved.

The application discloses a steam production system, which solves the problems of great design and construction difficulty and weak adjustment capacity of long-distance steam pipeline. The steam production system comprises a steam generation unit and a compressor unit. The steam generation unit comprises N-stage flash evaporators, and the compressor unit comprises N-stage compressors, wherein N is greater than or equal to 2. The N-stage flash evaporators are connected in series, and flash water passes through the N-stage flash evaporators in sequence. The Mth-stage compressor is connected with the Mth-stage flash evaporator, 1 is less than or equal to M and is less than or equal to N, steam generated by the Mth-stage flash evaporator is input into the Mth-stage compressor, and the Mth-stage compressor outputs the steam after compression. The application uses hot water pipeline network to replace long-distance steam pipeline, reduces the design and construction difficulty, and improves the system stability and production efficiency.

The utility model discloses a low-level waste heat recovery system which comprises a high-pressure flash tank, the top of the high-pressure flash tank is connected with a high-pressure grey water heater through a pipeline, the high-pressure grey water heater is sequentially connected with a circulating water condenser, a gas-liquid separator and a deaerator through pipelines, and the bottom of the high-pressure flash tank is connected with a low-pressure flash tank through a pipeline. The low-pressure flash tank is further connected with a deaerator, the top of the high-pressure flash tank is connected with a desalted water heater through a pipeline, and the desalted water heater is sequentially connected with a gas-liquid separation tank and the deaerator through pipelines. According to the low-level waste heat recovery system, the temperature of desalted water from a conversion section is increased, the consumption of steam (1.5 Mpa, 200 DEG C) of a boiler deaerator is reduced, and the use of circulating water is reduced.

The utility model relates to a system for heating and humidifying inlet air of a boiler by flash evaporation of desulfurization slurry, which belongs to the technical field of air heaters and is characterized in that dead steam generated by a first flash evaporation unit provides a heat source for a first heat exchange unit, and a to-be-heated medium inlet of the first heat exchange unit is communicated with a liquid medium outlet of a first spraying heat exchanger; a to-be-heated medium outlet of the first heat exchange unit communicates with a spraying layer of the first spraying heat exchanger, and a first fresh air inlet and a first heating air outlet are formed in the first spraying heat exchanger. The slurry flash tank is used for spraying heat in the desulfurized slurry and heated circulating water to outdoor fresh air through the spraying device by means of medium circulation, and primary heating of the outdoor fresh air is achieved.

The invention provides a waste water treatment device system for desulfurization slurry waste heat recovery coupled with air evaporation and concentration. The waste water treatment device system comprises a desulfurization unit, a flash evaporation unit, an upgrading unit and an air evaporation and concentration unit which are connected in sequence. The system realizes coupling of desulfurization slurry waste heat utilization and desulfurization wastewater treatment by air evaporation and concentration, realizes treatment of wastewater by waste heat in a desulfurization island, improves the utilization efficiency of desulfurization slurry waste heat, reduces the energy consumption of desulfurization wastewater concentration treatment, and is suitable for large-scale popularization and application.

Provided are a heat generation system, a power generation system, a thermal power generation system, and a heat generation method that make it possible, when generating heat using a heating element in which a hydrogen storage alloy or the like is used, to heat the heating element without using a heater, or to reduce power for heating even when a heater is used. A heating system 1 includes: a heating element in which a multilayer film for generating heat by storage and release of hydrogen is formed on a surface of a support body formed of a hydrogen storage metal, a hydrogen storage alloy, or a proton conductor; a heating device 11 having a sealed container for storing the heating element, an introduction line 4 for introducing a gas containing hydrogen into the sealed container, and a lead-out line 5 for leading out the gas containing hydrogen used for heat generation in the heating element by storage and release of hydrogen in the heating element; and a heat source 7 which is provided in any of a factory, a hot spring site, and a thermal power plant, and which discharges, to the periphery of the sealed container, a fluid for heating the heating element from the outside of the sealed container.

The invention discloses a heat energy gradient utilization and waste heat recovery system of a methane chloride device, and relates to the technical field of heat energy recovery, the heat energy gradient utilization and waste heat recovery system comprises a flash tank connected in series in the heat energy gradient utilization and waste heat recovery system, and the side wall of the flash tank is provided with a feeding pipe for a fluid material to flow in; a liquid distribution assembly for dispersing a fluid material in the flash tank is arranged in the flash tank, the liquid distribution assembly comprises a driving mechanism and a liquid distribution disc which are arranged in the flash tank, and a plurality of liquid distribution runners are sequentially formed in the surface of the liquid distribution disc in the circumferential direction; in the flash evaporation process of the fluid materials entering the flash evaporation tank, the driving mechanism drives the liquid distribution disc to rotate in the circumferential direction to throw the fluid materials entering the liquid distribution flow channel to the inner wall of the flash evaporation tank.

The invention discloses a long-distance heat supply pipeline self-energy-supply boosting system based on energy recovery. The long-distance heat supply pipeline self-energy-supply boosting system comprises a flash evaporation module, a power generation module and a boosting module. An inlet of the flash evaporation module is connected with the long-distance heat supply pipeline through a branch pipeline, and the flash evaporation module is used for receiving part of high-temperature hot water and generating steam through flash evaporation; the power generation module utilizes the steam provided by the flash evaporation module to generate power and comprises an expansion machine connected with a steam exhaust port of the flash evaporation module and a power generator coaxially connected with the expansion machine; the boosting module is arranged on the long-distance heat supply pipeline, the power input end of the boosting module is electrically connected with the electric energy output end of the generator, and the boosting module is used for consuming at least part of electric energy generated by the power generation module so as to increase the pressure of a heating medium flowing through the long-distance heat supply pipeline. The system has the advantages that the self-energy-supply and low-emission pipeline pressure self-compensation scheme is achieved, external energy consumption can be remarkably reduced, and the system energy efficiency and operation reliability are improved.

The utility model discloses an efficient demisting waste water heat pump, which belongs to the technical field of heat pumps and is characterized in that a plurality of parallel flash evaporation tanks are arranged below a demisting tank, the tops of the flash evaporation tanks are communicated with the demisting tank, the bottoms of the flash evaporation tanks are communicated through liquid discharge pipelines, a heat pump is arranged below the flash evaporation tanks, and the liquid discharge pipelines are communicated with the heat pump. And the demisting tank is connected with the heat pump through a steam exhaust pipeline. The flash tank is located on the upper portion of the heat pump, the occupied space of the system can be saved, meanwhile, the necessary net positive suction head of the water return pump is guaranteed, waste water in flash evaporation can be discharged in the negative pressure state, the ascending process of flash steam is increased through the demisting tank independently arranged on the upper portion of the flash tank, and the gravity demisting effect is enhanced; in addition, a demister with a larger area can be arranged in the independent demisting tank, the flow speed of flash steam passing through the demister is reduced, and the demisting effect is enhanced, so that the flash steam entering the heat pump is cleaner, pollution to a heat exchange tube is reduced, and the quality of flash condensed water is better.

The invention provides a desulfurization slurry waste heat recovery coupled evaporation concentration wastewater treatment device system. The wastewater treatment device system comprises a desulfurization unit, a flash evaporation unit, an upgrading unit, an evaporation concentration unit and a condensation unit which are connected in sequence. According to the invention, the coupling of desulfurization slurry waste heat recovery and evaporation concentration technology is realized in the desulfurization system, waste heat is used for treating waste water in the desulfurization island, the energy consumption in the concentration process is obviously reduced, high-quality fresh water is recovered, and the resource utilization of the waste water is realized.

The invention discloses a steam waste heat recycling device and method, and the device comprises a factory hot water tank for storing low-grade hot water, and further comprises a negative pressure atomization flash tank, an MVR compressor and a heat exchanger; a water pump is connected between the factory hot water tank and the negative pressure atomization flash tank, and the negative pressure atomization flash tank generates low-temperature steam by using low-grade hot water; the MVR compressor is used for compressing low-temperature steam generated by the heating negative-pressure atomization flash tank and conveying the low-temperature steam into the heat exchanger. Low-grade low-temperature hot water collected in factory production is subjected to atomization flash evaporation through the negative pressure atomization flash evaporation tank, low-temperature steam is separated out, the low-temperature steam is conveyed into the heat exchanger after being compressed and heated through the MVR compressor, high-temperature steam and the low-temperature steam existing in factory production are subjected to heat exchange through the heat exchanger, and the heat exchange efficiency is improved. And the heat energy with the specific temperature is obtained and used for corresponding process production, so that the low-grade low-temperature heat energy is recycled, heat energy waste is avoided, the energy utilization efficiency is improved, and energy conservation and consumption reduction are realized.

This utility model discloses an alumina leaching device, characterized in that: the raw ore slurry, after passing through a first heat exchanger, sequentially enters a second, third, fourth, and fifth heat exchanger, and then enters a heat-insulating retention tank. The heat-insulating retention tank is connected to a flash evaporator. The leached slurry from the flash evaporator is connected to a second heat exchanger, and then enters a dilution tank. The dilution tank is connected to a post-leaching tank via a first pump. This utility model, through optimized thermal energy design, reduces redundant flash evaporation and auxiliary processes in traditional processes, lowers equipment investment costs and operational complexity, and provides a device for optimizing the thermal energy utilization of the leaching system, while simultaneously achieving the goals of simplifying the leaching process and saving investment. Combining the leaching heat balance and the water distillation benefits from flash cooling, it ensures that the ore slurry achieves the best leaching effect and optimal economic benefits in the leaching system.

The utility model discloses a flash evaporation and absorption integrated device for low-temperature waste liquid, which belongs to the technical field of waste heat recovery and is characterized in that a demisting cavity and a flash evaporation cavity are arranged in a flash evaporation box body, and a demister is arranged in the demisting cavity; dead steam of the flash evaporation cavity enters the demisting cavity and then is communicated with a heat exchange cavity which is arranged in a heat exchange box body of the absorber and is provided with a narrow channel and a long flow path through a dead steam steam channel, and the flash evaporation box body is provided with a first low-temperature waste liquid inlet communicated with the flash evaporation cavity. Low-temperature dead steam generated by the flash evaporation box body passes through the narrow-channel long-flow-path heat exchange cavity design of the absorber, the absorption efficiency and the waste heat recovery capacity of the low-temperature dead steam are remarkably improved, and the contact path of a concentrated solution and flash evaporation steam is prolonged through the narrow-channel long-flow-path structure.

The present invention provides a heating system, power generation system, thermal power generation system, and heating method that can heat a heating element using a hydrogen storage alloy or the like without using a heater, or reduce the power required for heating even when a heater is used. [Solution] The heating system 1 comprises a heating element having a multilayer film formed on the surface of a support made of a hydrogen-absorbing metal, a hydrogen-absorbing alloy, or a proton conductor, which generates heat by the absorption and release of hydrogen; a sealed container housing the heating element; an introduction line 4 for introducing hydrogen-containing gas into the sealed container; and an outlet line 5 for releasing the hydrogen-containing gas that has been used to generate heat in the heating element by the absorption and release of hydrogen in the heating element; and a heat source 7 installed in a factory, a hot spring area, or a thermal power plant, which discharges the fluid that heats the heating element from the outside of the sealed container to the area around the sealed container.