11results about "Steam generation" patented technology

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.

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.

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.

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 present application belongs to the technical field of heat recovery, and provides a black water waste heat recovery composite system and a working method thereof. The system comprises a pressure recovery device, an organic Rankine cycle device, an absorption heat pump device, a heat exchange device and a multi-stage flash evaporation device. The 170-184 DEG C, 0.8-1.1 MPa high-pressure steam generated by the black water through a high-pressure flash tank is used as a first heat source, and the pressure energy is recovered by the pressure recovery device to output electric energy. The 120-144 DEG C, 0.2-0.4 MPa low-pressure steam generated by the black water through a low-pressure flash tank is used as a second heat source, and the heat energy is converted into electric energy by the organic Rankine cycle device. The 80-85 DEG C, 47-58 kPa vacuum steam generated by the black water through a vacuum flash tank is used as a third heat source, and the temperature of the industrial water is raised by the absorption heat pump device. The low-grade waste heat discharged by each device is deeply recovered by the three-stage series heat exchange of the heat exchange device, the waste heat is transferred to the industrial water, the high-quality industrial hot water output is raised, and the full-grade cascade utilization of the black water waste heat is realized.

This invention relates to the field of seawater desalination and heating equipment technology, and discloses a system and method for PV / T seawater desalination combined with heat pump heating. The system comprises three main modules: photovoltaic thermal, seawater desalination, and waste heat recovery heating. The photovoltaic thermal module includes PV / T panels and pure solar thermal panels, etc.; the seawater desalination module includes a seawater preheater, flash evaporator, concentrated seawater distributor, steam distributor, freshwater storage tank, etc.; and the waste heat recovery heating module includes a heat pump unit, hot water tank, radiant heating, circulating water pump, etc. This system can simultaneously meet users' requirements for freshwater production and heating load. Furthermore, the photovoltaic thermal module achieves bidirectional synergistic cooling and efficiency improvement through natural seawater and PV / T panels, while the waste heat recovery heating module efficiently recovers waste heat from freshwater steam condensation. By adjusting the split ratio, flash evaporator vacuum, and heat collection angle, the system dynamically matches the water production and heating load, achieving closed-loop energy utilization. This results in low energy consumption, high utilization rate, and effectively reduced winter heating costs.

Systems, methods, and apparatuses for utilizing heat are provided. A heat pump is configured to provide high-pressure steam and includes at least one compressor and at least one flash vessel. A heat exchanger is configured to be disposed proximate to a facility and further includes a first flow path and the second flow path. The first flow path is configured to transfer heat to the second flow path within the heat exchanger. An inlet of the first flow path is configured to be coupled to a source of hot fluid exiting the facility. Moreover, an inlet of the second flow path is configured to be coupled to a water source. An outlet of the second flow path is configured to be coupled to an inlet of the heat pump.

The utility model belongs to the technical field of heat supply system provides a kind of heat system that considers both heating and steam supply, comprising: front end flash tank, rear end flash tank, first valve, second valve, third valve, fourth valve, fifth valve, waste heat recovery unit, sharp peak heater, water supply opening, several steam compressors, large temperature difference heat exchange unit, gas holder, primary network water supply opening, primary network backwater opening, secondary network water supply opening and secondary network backwater opening;Front end flash tank and rear end flash tank all include: several series flash tank.The utility model is through being provided with front end flash tank and large temperature difference heat exchange unit, has realized steam and hot water simultaneously generation, it is favorable to energy gradient utilization;Through being provided with fifth valve and waste heat recovery unit, the matching of system end load and the recycling of plant waste heat are realized, so that system regulation is more flexible and convenient, and energy efficiency is higher.

The application discloses a hot water steam production system, which solves the problem of low efficiency of the existing steam production equipment. The hot water steam production system comprises a steam generation unit, a first compressor unit and a heat pump unit. The heat pump unit comprises K heat pumps, K>=1, and the K heat pumps are connected in series and / or in parallel when K>=2. Flash water is input into the heat pump unit from the steam generation unit. The heat pump unit absorbs external heat energy to heat the flash water. The heated flash water returns to the steam generation unit to generate steam. The steam is input into the first compressor unit, and the first compressor unit outputs the steam after compression. The heat pump unit can effectively utilize the heat energy carried by the hot water, and significantly improves the efficiency of the steam production equipment.

This invention belongs to the field of waste heat utilization technology in hydrothermal carbonization, and relates to a sludge hydrothermal carbonization waste heat heating system and method based on an absorption heat pump. It includes: a sludge hydrothermal carbonization subsystem, a dehydration heat exchange subsystem, and an absorption heat pump subsystem. The dehydration heat exchange subsystem includes a filter press, a product cooler, a drying device, a filtrate heat exchanger, a condensate tank, and a first wastewater storage tank, connected in sequence. The absorption heat pump subsystem includes a generator, a condenser, an evaporator, an absorber, a solution pump, a solution heat exchanger, a pressure reducing valve, and a second wastewater storage tank, connected in sequence. The input end of the absorber is used to connect to the output end of the heating device, and the output end of the condenser is used to connect to the input end of the heating device. This invention utilizes primary flash steam, secondary flash steam, and dehydrated filtrate to heat the return water of the heating network through the absorption heat pump subsystem to obtain heating hot water, solving the problems of high energy consumption and low waste heat recovery rate in existing sludge treatment methods.