368 results about "Heat carrier" patented technology

The present invention discloses a system and method for preventing and controlling frost heave damage in railway subgrades adapted to severe cold climates. This system belongs to the field of seasonal frozen soil engineering technology. The prevention and control system includes several ground-source heat pump devices consisting of heating units, heating pipes, heat collecting pipes, and a detection assembly. Several heating units are arranged at the foot of the subgrade slope along the length of the railway. The heating pipes are laid in the frost heave development layer of the subgrade, and the heat collecting pipes are installed in the stable layers of the foundation on both sides of the subgrade. A heat carrier circulates through the pipeline consisting of the heating pipes, heating units, and heat collecting pipes. Temperature sensors, pressure sensors, and displacement sensors are used to monitor the subgrade freezing temperature, heat carrier temperature, compressor intake and exhaust pressures, and track deformation, respectively. A control assembly receives signals from the detection assembly and controls the operating mode of the heating units. The present invention ensures rapid compressor superheat establishment during startup in severe cold environments and rationally controls the compressor exhaust temperature range and operating mode during normal operation.

The invention discloses a railway roadbed frost heaving disease prevention and control system and method adapting to severe cold climate, and belongs to the technical field of seasonal frozen soil engineering.The prevention and control system comprises a plurality of ground source heat pump devices composed of heating units, heat supply pipes, heat collection pipes and detection assemblies, and the heating units are arranged at the slope toe position of a roadbed in the length direction of a railway; the heat supply pipe is laid on a frost heaving development layer of a roadbed, the heat collecting pipes are arranged on stable layers of the roadbed on the two sides of the roadbed, and the heat-carrying agent circularly flows in a pipeline composed of the heat supply pipe, the heating unit and the heat collecting pipes. A temperature sensor, a pressure sensor and a displacement sensor are used for monitoring the roadbed freezing temperature, the heat-carrying agent temperature, the suction and exhaust pressure of a compressor and the deformation amount of a track; and the control assembly receives a signal of the detection assembly and controls the operation mode of the heating unit. According to the method, rapid establishment of the superheat degree of the compressor in the starting stage in the severe cold environment and reasonable control over the exhaust temperature range and the operation mode of the compressor in the normal operation stage can be guaranteed.

The invention discloses a high-temperature stable gas heat conduction temperature control method and system, and relates to the technical field of temperature control. The system comprises a high-temperature inert gas loop, a gas circulation driving module, a gas heating module, a gas heat exchange module, a gas cooling module, a gas purification and supplement module and a precise temperature sensing and control module. The high-temperature inert gas loop is configured as a closed circulation path and is used for bearing high-purity inert gas as a heat carrier; and the gas circulation driving module is arranged in the high-temperature inert gas loop and is used for driving the high-purity inert gas to continuously and circularly flow in the closed circulation path. By adopting high-purity inert gas as a heat-conducting medium and combining precise circulation driving, multi-stage heating, efficient heat exchange, active cooling, online purification and intelligent control technologies, the problems that an existing liquid heat-conducting medium is unstable in phase change at a high temperature, a metal eutectic medium is poor in safety, and a composite system is high in complexity are solved.

The invention relates to a multi-source heat carrier heat transfer coal pyrolysis reaction device, and relates to the technical field of multi-heat source complementary coal pyrolysis and gasification. Comprising a reactor, a spiral feeder, a solid product collector and a heat storage cavity, the interior of the reactor is divided into a pyrolysis cavity and a heat supply cavity through a steel plate; the spiral feeder is connected with the top of the pyrolysis cavity through a conveying pipe, and the solid product collector is connected with the bottom of the pyrolysis cavity through a pneumatic knife gate valve; and the pyrolysis cavity is connected with the bottom of the heat storage cavity through a pneumatic knife gate valve. The function that the reactor adapts to multi-source heat sources and high heat transfer flux is achieved through circular flowing of the high-temperature heat carrier; the heat transfer efficiency of the reactor can be effectively improved by regulating and controlling the heat transfer characteristic and the flowing state of the high-temperature heat carrier, and the pyrolytic reaction rate is increased.

The invention relates to a heat pipe type fluidized bed particle heat storage system which is mainly used for solar heat utilization. The system mainly comprises a light gathering device, a heat collecting pipe and a fluidized bed. The heat collection pipe adopts a sealed vertical heat exchange pipe bundle, is divided into a heat absorption section, a heat insulation section and a heat release section, and is filled with a phase change medium to efficiently store heat and transfer heat. Heat carrier particles are contained in the fluidized bed and are in direct contact with the heat release section of the heat collecting pipe for rapid heat exchange, the fluidized bed technology is used for achieving the advantages of being rapid in heat transfer, uniform in heat distribution, large in operation flexibility and the like, and different illumination intensity conditions can be adapted. The system is compact in overall design and small in heat loss, has efficient and stable heat utilization performance, and can be widely applied to the fields of solar thermal power generation, solar thermochemistry and the like.

The application discloses a device and method for preparing green hydrogen through biomass pyrolysis and gasification, relates to the technical field of green hydrogen preparation, and solves the problems of blockage and corrosion caused by ash melting and slagging in the pure oxygen gasification process, and the problem of low energy utilization rate. The device for preparing green hydrogen through biomass pyrolysis and gasification comprises a pyrolysis reaction device, and the pyrolysis reaction device comprises a pyrolysis reaction tank connected with a high-temperature heat carrier conveying spiral, a biomass raw material storage bin, a biomass raw material conveying spiral and a pyrolysis solid-phase product conveying spiral. In the application, biomass raw materials are converted into biochar and pyrolysis oil gas through pyrolysis technology, the biomass ash is effectively cut, and problems such as blockage and corrosion caused by ash melting and slagging in the pure oxygen gasification process are effectively avoided; the high-temperature pyrolysis oil gas is directly subjected to pure oxygen gasification reaction through gasification technology, the sensible heat and latent heat in the pyrolysis oil gas are fully utilized, and the energy utilization rate is high.

The invention discloses a chemical looping combustion material circulation method and chemical looping combustion equipment. The chemical looping combustion material circulation method comprises the steps that heat carrier particles and oxygen carrier particles are mixed in an air reactor, the oxygen carrier particles and oxidizing airflow are subjected to an oxidation reaction and release heat, and the heat carrier particles absorb the heat by making contact with the oxygen carrier particles; the flow speed of the oxidizing gas flow is adjusted, heat carrier particles are selectively separated out by means of the difference of the fluidization characteristics of the heat carrier particles and oxygen carrier particles, and the separated oxygen carrier particles are conveyed to a fuel reactor; heat is extracted from the separated heat carrier particles, and then the heat carrier particles are discharged or flow back to the air reactor. The invention relates to a chemical looping combustion technology, and provides a chemical looping combustion material circulation method and chemical looping combustion equipment, heat carrier particles are introduced, the heat carrier particles absorb heat released by oxidation of oxygen carrier particles and transmit the heat to a heating surface of a heat recovery structure, and effective extraction of heat in the chemical looping combustion process is achieved.

The application provides a kind of waste plastics fast pyrolysis-catalytic device and test method, belong to waste plastics utilization field.The uneven heating in the pyrolysis process, the problem of slow pyrolysis rate of traditional waste plastics pyrolysis-catalytic reaction device is solved.A kind of waste plastics fast pyrolysis-catalytic reaction device, comprising: pyrolysis device, including pyrolysis container, heat carrier medium and heating device, the heat carrier medium is filled in pyrolysis container and is liquid at high temperature, the heating device is equipped on the wall of pyrolysis container;Catalytic cracking device, including reducing pipe, electromagnetic induction heating device and catalytic reaction core, the catalytic reaction core is arranged in the upper half of reducing pipe, the coil of electromagnetic induction heating device is arranged outside the catalytic reaction core.It is mainly used for pyrolysis plastics.

The invention discloses a method for producing hydrogen by using organic solid waste, and relates to the technical field of new energy. The method comprises the following steps: classifying the organic solid wastes, screening out organic matters and combustible substances, mixing the organic matters and the combustible substances, and crushing into a homogeneous material with the particle size of less than or equal to 50mm; drying the homogenized material to obtain a dried material of which the water content is less than or equal to 8%; feeding the dried material into a rotary kiln pyrolyzing furnace, mixing the dried material with a heat carrier in the rotary kiln pyrolyzing furnace, heating the dried material by flue gas through the cylinder wall of the rotary kiln pyrolyzing furnace and the heat carrier, and pyrolyzing the dried material at the pyrolyzing temperature of 450-750 DEG C to obtain oil gas and pyrolyzing slag; mixing the pyrolysis residues with a cosolvent, preparing a glass body in a gasification melting furnace, mixing oil gas with water vapor, and reacting in a fixed bed reactor to prepare synthesis gas; and preparing the synthesis gas into hydrogen. The pyrolysis efficiency is remarkably improved, fuel consumption is reduced, system energy consumption is correspondingly reduced, and low-temperature efficient pyrolysis is achieved.

The utility model relates to the field of oilfield development, in particular to a double-hollow sucker rod heating device which comprises a heating tank, a sucker rod assembly, a stirring assembly, a heating assembly, a flow guide pipe, a threaded sleeve, a feeding hopper, a first hydraulic controller and a liquid discharging pipe. The heat conduction layer and the heat preservation and insulation layer are arranged in the inner pipe and the outer pipe of the sucker rod respectively, heat transfer between a heat carrier and the sucker rod can be enhanced through the heat conduction layer, it is ensured that heat can be efficiently transferred to the underground, heat loss of the heat carrier in the flowing process can be reduced through cooperation of the heat preservation and insulation layer, and the service life of the sucker rod is prolonged. The heating assembly capable of sensing the temperature of the heating carrier in the heating device in real time is arranged, and the heating temperature can be flexibly adjusted according to the actual temperature change of the heat carrier liquid to achieve rapid temperature rise of the heat carrier liquid; and the stirring assembly is arranged, so that the heat carrier liquid flowing back into the heating device can be quickly and uniformly stirred in a rotary stirring mode to accelerate temperature rise.

The invention relates to a local magnetothermal coupling biological rotating disc enhanced cold region sewage treatment method and system. The system comprises a reactor, a biological rotating disc for growing a biological membrane, a magnetic heat carrier, an alternating magnetic field generator and a motor for driving the biological rotating disc to rotate, the reactor comprises an air exposure area and a sewage area from top to bottom, a water inlet is formed in the lower part of the left side wall of the reactor, a water outlet flush with the water level of the sewage area is formed in the upper part of the right side wall, the reactor is further provided with vent holes, and the air exposure area is communicated with air through the vent holes; the biological rotating disc is partially immersed in the sewage area and partially exposed to the air exposure area in the radial direction; the air exposure area is located in the magnetic field action range of the alternating magnetic field generator, the magnetic heat carrier is arranged on at least one side of the biological rotating disc, and the magnetic heat carrier generates a magnetocaloric effect under the action of the magnetic field so as to increase the temperature of the biological membrane. According to the invention, the synergistic effect of precise heating of the biological membrane and the metabolic process of the biological membrane is realized, and the efficient and energy-saving sewage denitrification process at low temperature is realized.

The invention provides a phase change heat storage system and method based on two-phase contact heat exchange, and relates to the technical field of heat energy storage. The system comprises a high-temperature liquid storage tank, a low-temperature particle storage tank, a heat-carrying liquid loop, a connecting pipeline and a switching valve, a heat exchange pipeline, a liquid-carrying heat pump, a heater / radiator and a separator are arranged on the heat-carrying liquid loop to form a complete loop, the high-temperature liquid storage tank is connected to the heat exchange pipeline, and the low-temperature particle storage tank is connected with the heat exchange pipeline and the separator. During heat storage, the low-temperature particles and the high-temperature heat-carrying liquid are in direct contact for heat exchange in the heat exchange pipeline, and the particles are melted into liquid and then stored in the high-temperature liquid storage tank; during heat release, high-temperature liquid is granulated into liquid drops through the nozzle, the liquid drops make direct contact with low-temperature heat-carrying liquid in the heat exchange pipeline for heat exchange, and the liquid drops are solidified into particles and then stored in the low-temperature particle storage tank. Through liquid-liquid and liquid-solid two-phase direct contact heat exchange, the heat transfer efficiency is improved, the problems of complexity and cost caused by phase change material packaging are solved, and the heat storage device is suitable for large-scale heat storage application.

This utility model relates to a heat-insulating and heat-resistant ceramic tableware, belonging to the field of ceramic tableware technology. It includes a ceramic tableware body with an external heat-insulating structure. This heat-insulating structure includes a heat-insulating carrier slidably connected to the outside of the ceramic tableware body. This heat-insulating and heat-resistant ceramic tableware, by using a heat-insulating carrier, directly isolates the ceramic tableware body, preventing direct contact between the user and the tableware. Furthermore, the inclusion of a vacuum cavity creates a double-layer effect for the heat-insulating carrier, further enhancing the heat-insulating effect. Simultaneously, the inclusion of a heat-insulating pad prevents heat transfer to the table surface and provides a certain degree of anti-slip effect, thus achieving both heat insulation and heat preservation, slowing down the cooling rate of food inside the ceramic tableware.

The utility model relates to the technical field of petroleum processing, in particular to a heat source utilization device for an aromatic hydrocarbon extraction process, which comprises a medium-pressure superheated steam generating device, a steam exhaust port of the diesel oil hydrogenation steam turbine is communicated with an inlet end of the desuperheater; and the outlet end of the desuperheater and the outlet end of the temperature and pressure reducer are connected in parallel and then are respectively communicated with the steam inlet of the stripping tower reboiler, the steam inlet of the recovery tower reboiler, the steam inlet of the regeneration tower reboiler, the steam inlet of the benzene tower feeding heater and the steam inlet of the toluene tower reboiler. According to the utility model, surplus low-pressure superheated steam discharged by the diesel hydrogenation steam turbine is used as a heat carrier of the stripping tower reboiler, the recovery tower reboiler, the regeneration tower reboiler, the benzene tower feeding heater and the toluene tower reboiler, so that the use amount of medium-pressure superheated steam is reduced, and the recycling of the surplus low-pressure superheated steam is realized.

The utility model provides a pulverized coal pyrolysis, circulating fluidized bed boiler and gasification furnace integrated device which comprises a pyrolysis unit, a heat carrier heating unit, a powder selecting unit, a circulating fluidized bed boiler unit and a gasification unit, a solid phase outlet of the pyrolysis unit is independently connected with the heat carrier heating unit and the powder selecting unit, and a solid phase outlet of the gasification unit is independently connected with the circulating fluidized bed boiler unit. A smoke outlet pipeline of the heat carrier heating unit is connected with the powder selecting unit and the circulating fluidized bed boiler unit, an upper outlet of the powder selecting unit is connected with the gasification unit, and a lower outlet of the powder selecting unit is connected with the circulating fluidized bed boiler unit. According to the utility model, the particle size of the coke breeze after pulverized coal pyrolysis is graded, the graded coke breeze with smaller particle size is used for gasification, and the coke breeze with larger particle size is used as the fuel of the circulating fluidized bed boiler, so as to meet the requirements of different devices on the particle size of the coke breeze, effectively improve the utilization rate of the coke breeze, maximally utilize sensible heat of the coke breeze and realize efficient recycling of energy; and the treatment cost of downstream coke breeze processing is reduced, and efficient graded and quality-divided utilization of coke breeze is truly realized.

The invention provides a heat energy recovery system of a movable graphitization furnace, and belongs to the field of graphitization furnaces. The heat energy recovery system comprises a working station, wherein the movable graphitization furnace is suitable for high-temperature preparation of products in the furnace body area at the working station; the movable graphitization furnace is suitable for moving to the cooling station after power failure; the movable graphitization furnace is suitable for moving to the discharging station after the cooling operation is completed at the cooling station; the first waste heat recovery device is located at the discharging station, the first waste heat recovery device comprises a waste heat absorption bin with water and is suitable for receiving the filling materials in the high-temperature state, cooling is conducted through first cooling water, so that the primarily-cooled filling materials are obtained, and meanwhile first hot water is prepared; the second waste heat recovery device is located at the cooling station and is suitable for being inserted into the ventilation channel to guide out heat in the movable graphitization furnace, the second waste heat recovery device is suitable for enabling a heat carrier to flow through, and the heat carrier comprises water, fused salt and / or heat conduction oil.

This invention discloses a solid heat carrier heating device, comprising a pyrolysis reactor, a fluidized bed furnace, a gas-solid separator, a mechanical return feeder, and a flue gas generator. The pyrolysis reactor is used to feed solid pyrolysis reactants into the fluidized bed furnace for reaction. The gas-solid separator is used to separate the reaction products in the fluidized bed furnace into gas and solid components to obtain a solid heat carrier, which is then transported to the fluidized bed furnace for reaction via the mechanical return feeder. The flue gas generator is used to supply flue gas into the fluidized bed furnace to heat the solid pyrolysis reactants. This invention also discloses a flue gas generator. The solution of this invention is applicable to the pyrolysis of organic solid wastes such as waste plastics, oil sludge, tires, and sewage sludge. Through efficient combustion and heating methods, the large solid heat carrier furnace achieves high-efficiency pyrolysis carbon combustion, stable bed temperature and bed pressure, and has a function for regulating the flow rate of circulating solid particles.

The utility model discloses a cooling device for a quarry, which comprises a cooling tower main body, a watering disc is arranged on the inner side of the cooling tower main body, a plurality of water outlet pipes are fixedly arranged in the watering disc, a fixed cylinder is fixedly arranged on the top of the cooling tower main body, and a mounting frame is fixedly arranged on the top of the fixed cylinder. A motor is fixedly mounted at the top of the mounting frame, rotating fan blades are arranged on the motor through a rotating shaft at the output end, a water sprinkling disc is fixedly mounted in the cooling tower main body, a stepped water outlet pipe is arranged on the water sprinkling disc, and when the flow of cooling water of the cooling tower is adjusted, the cooling water can be more effectively and uniformly distributed on a radiator; a heat dissipation carrier is utilized more fully, the heat dissipation area is enlarged, the heat dissipation efficiency is improved, and more energy is saved.

This invention relates to the field of thermal stability evaluation technology, and more particularly to a method and apparatus for evaluating the thermal stability of organic heat transfer fluids. The evaluation method includes: placing the organic heat transfer fluid in a loading container, introducing an inert gas to replace the air, sealing the container, and then conducting a high-temperature thermal test; after the high-temperature thermal test, cooling the loading container and then restoring it to atmospheric pressure; after the organic heat transfer fluid returns to room temperature, measuring the indicators of the organic heat transfer fluid, including kinematic viscosity, degradation rate, and pressure; scoring each indicator based on the kinematic viscosity change rate, degradation rate, and pressure increase value; and judging the thermal stability of the organic heat transfer fluid based on the comprehensive score. This invention provides a method and apparatus for evaluating the thermal stability of organic heat transfer fluids, enabling a rapid, efficient, and multi-dimensional evaluation method for the thermal stability of organic heat transfer fluids.

The utility model relates to the related technical field of heat carrier pipelines, in particular to a novel organic heat carrier pipeline structure which comprises a liquid inlet pipe, a circulating assembly is arranged on the lower left portion of the liquid inlet pipe, a control assembly is arranged on one side of the liquid inlet pipe, and a heating assembly is arranged at the bottom of the circulating assembly. The circulating assembly comprises a straight pipe, a first connecting pipe, a U-shaped pipe, a liquid outlet pipe, a built-in flow meter, a first mounting piece and a second mounting piece, the circulating assembly is arranged, the built-in flow meter feeds back flow data of a heat carrier in real time, the control valve is combined, and the flow speed of the heat carrier is conveniently regulated and controlled according to production requirements; the multiple sets of U-shaped pipes increase the circulation path of the heat carrier and the contact area of the heat carrier and the heating assembly, the heat carrier is evenly heated in continuous circulation, the heating efficiency is improved, the heating pipes of the heating assembly are installed on the inner walls of the straight pipes and the U-shaped pipes through the fixing discs, and the heating pipes are prevented from being damaged in the heat carrier flowing and heating process.

The utility model relates to the field of organic heat carrier furnaces, in particular to an organic heat carrier furnace for producing palm oil fatty acid, which comprises a furnace body, a furnace cover arranged on the top of the furnace body, two ends of the furnace cover clamped on the top of the furnace body through spring pins, a heating bin arranged on the inner side of the furnace body, and a reactor arranged inside the heating bin. A bin cover matched with the heating bin is arranged at the bottom of the furnace cover, and circulating pipelines communicated with the heating bin and the bin cover are arranged between the heating bin and the bin cover and distributed at the bottoms, the outer walls and the tops of the heating bin and the bin cover. In the utility model, the organic heat carrier flows in from the bottom of the heating bin, spirals, then flows upwards in a spiral manner, finally flows into the bin cover from the upper side of the heating bin, flows to the inner side of the bin cover from the outer side in a spiral manner, finally rises from the center of the bin cover, and flows back into the oil tank along the oil outlet pipe; in the process, the flow path of the organic heat carrier can cover the surface of the reactor, so that the effects of uniform heating and rapid heating and cooling of the reaction mixture are improved.

The application discloses a phase-change heat-carrying direct-drive heat pump system and belongs to the technical field of heat pumps. A flash evaporation unit provides steam for a heat pump unit through a steam channel. The flash evaporation unit comprises a flash evaporation tank body, a liquid inlet pipe is arranged in the flash evaporation tank body, a plurality of parallel liquid distribution heat exchange pipes are arranged on both sides of the liquid inlet pipe, and liquid collection pipelines are connected to both sides of the liquid inlet pipe. A plurality of liquid distribution pipes are connected to a plurality of liquid discharge units arranged on the inner wall of the flash evaporation tank body. The liquid discharge units are used for discharging liquid above the liquid surface in the flash evaporation tank body and discharging liquid below the liquid surface in the flash evaporation tank body. The liquid above and below can be simultaneously flashed through the liquid discharge units. The number of the liquid discharge units above and below is controlled to control the flash evaporation efficiency. The distance between the liquid discharge port of the liquid discharge unit below the liquid surface is controlled to control the flash evaporation efficiency below the liquid surface, the flash evaporation efficiency of the slurry is accurately controlled, and the liquid discharge unit can be adapted to multiple-power flash evaporation equipment, and the adaptability is wide.

The invention discloses an alkaline water electrolysis hydrogen production system with a waste heat utilization function. The alkaline water electrolysis hydrogen production system comprises an alkaline electrolytic bath, a pure water supply device, a waste heat exchange device, a temperature control assembly and a matched connecting pipeline. The waste heat exchange device is connected to a water supplementing pipeline between the pure water tank and the alkaline electrolytic bath in series, a waste heat input connector is communicated with the waste heat output end of the alkaline electrolytic bath, a waste heat output connector is communicated with the waste heat backflow end of the alkaline electrolytic bath, and waste heat generated by operation of the electrolytic bath is recycled to preheat supplementing water. And the temperature control assembly dynamically adjusts the flow of the waste heat carrier according to a temperature signal at the water outlet end of the water supplementing pipeline, so that the supplementing water accurately reaches the temperature required by the process when entering the electrolytic bath. Efficient recycling of waste heat of the electrolytic cell is achieved, traditional additional heating equipment is replaced, system operation energy consumption is reduced by 15% or above, a main body structure of an existing electrolytic cell does not need to be greatly transformed, the transformation cost is low, applicability is high, and the method can be widely applied to industrial-grade alkaline water electrolysis hydrogen production scenes.

The application discloses a kind of high-efficiency vaporization equipment of TMA recovery, it is related to TMA recovery technical field.The main body component and top cover component are included, the main body component includes main cylinder, top cover component includes top cover body, carrier assembly for absorbing waste water and heating waste water is arranged on top cover body, shaking assembly for driving carrier assembly vibration and storage assembly for impurity recovery are arranged in main cylinder.The application is heated by the way of containing waste water, so that trimethylamine is preferentially vaporized into gaseous state, the recovery of trimethylamine is realized, the heating carrier further heats the water absorption carrier, the remaining impurities in the water absorption carrier are crystallized, the rotating shaft continuously drives the rotation of water absorption carrier and heating carrier, water absorption carrier and heating carrier contact with shaking assembly, so that the carrier frame shakes up and down as a whole, and the crystallized impurities are shaken off, thereby reducing the content of impurities in the sewage at the bottom of main cylinder, and the recovery efficiency of trimethylamine is improved.

This invention discloses a jet mixing method for heating wastewater, comprising: achieving efficient heating through pretreatment, synergistic tension reduction by surfactant and ultrasound, staged stirring and coagulation with PAC, and alternating jet mixing of steam and wastewater; the synergistic effect of tension reduction and dispersion by surfactant and ultrasound results in smaller and more uniform oil droplet size, providing easier targets for subsequent PAC coagulation; the synergistic effect of adsorption and flocculation by staged stirring of PAC and pH adjustment rapidly encapsulates pollutants in the fast mixing stage and promotes floc cross-linking to form large and dense "heat carriers" in the slow mixing stage, significantly enhancing the mass transfer efficiency between wastewater and steam; the turbulent disturbance of alternating jets of steam and wastewater synergistically reduces the resistance at the mixing interface, resulting in more uniform heat transfer and avoiding local overheating or crusting; thus significantly improving heating efficiency.

The application discloses a heat exchange single pipe, a horizontal flow membrane type hearth and a circulating fluidized bed furnace. The application completely solves the problem that the circulating fluidized bed structure cannot be used due to abrasion of the heat carrier heating furnace; the volume pipe arrangement rate of the hearth is increased, the height of the circulating fluidized bed is reduced, manufacturing is convenient, the membrane type hearth is supported by the outer wall membrane type wall, one furnace can be used for multiple purposes, a steam boiler and a heat carrier furnace or a gas heating furnace can be used in one furnace, the heat exchange areas of various heat users can be flexibly arranged in one furnace according to the characteristics of the heat users; the problem that the wall of the heat exchange surface of the flue behind the circulating fluidized bed furnace is frequently blocked is solved by increasing the arrangement area of the hearth and reducing the flue gas outlet temperature of the hearth; the flue gas outlet temperature is reduced, the flue gas volume flow is reduced, the separation efficiency of the cyclone is improved, the heat transfer coefficient is improved; the coking and blocking caused by the secondary combustion in the cyclone separator are avoided, the cyclone does not need jacket cooling, and the start-up and temperature rising time is reduced.

This invention provides a waste pyrolysis gas combustion device and its combustion method, belonging to the field of waste treatment technology. The invention includes: a shell, foam ceramic balls, a central tube, a preheater, a mixing tube, a co-firing air sleeve, and a flow-dispersing component. This invention uses foam ceramic balls as a heat storage carrier in conjunction with a preheater to achieve stable ignition of pyrolysis gas with low calorific value fluctuations, effectively adapting to the combustion requirements of waste pyrolysis gas with low calorific value and parameter fluctuations, and improving combustion stability. The flow-dispersing component in the mixing tube enhances gas-gas mixing, improving combustion efficiency and pollutant control, increasing combustion completeness, reducing pollutant generation, and optimizing combustion efficiency. The compact structure of the nested central tube and mixing tube with annular slot air intake achieves efficient space utilization and integrated application, realizing precise gas distribution and efficient mixing within a limited space. The overall layout of the device is compact and easy to integrate.

The invention relates to the technical field of pyrolysis, in particular to a double-chamber flexible rotary pyrolysis device and a pyrolysis method.The double-chamber flexible rotary pyrolysis device comprises a hollow cylindrical reaction chamber and a combustion chamber which are horizontally arranged; a plurality of flexible scrapers and a flexible reaction cage coaxially arranged in the reaction chamber are arranged in the reaction chamber; a spiral blade is mounted on the inner surface of a rotary drum of the flexible reaction cage and can drive a heat carrier to move in the axial direction; the combustion chamber is connected with the two ends of the rotating roller and used for heating the heat carrier through combustion products, and circulating self-heating of the heat carrier is achieved; one end of the flexible scraper blade is fixed on the inner surface of the reaction chamber, and the other end of the flexible scraper blade can be in contact with the net-shaped surface of the flexible reaction cage. According to the invention, large-size strip-shaped organic wastes can be directly and efficiently pyrolyzed, so that the technical problems that raw materials are easy to soften, bond and block, coking and slagging are serious and the pretreatment cost is relatively high when the strip-shaped organic wastes are treated by the existing pyrolysis device are solved.

The utility model relates to the technical field of heat exchange equipment, and discloses an electric heating steam generator for supplying superheated steam, which comprises a softened water tank, a water pump, a heat carrier, a buffer tank and an inner container assembly which are sequentially connected through a pipeline, and the inner container assembly comprises an inner container, a first heating pipe, a water inlet, a second heating pipe, a steam connecting pipe, a support frame and a liquid level detector. The buffer tank clings to the liner. Softened water in a pipeline is heated for the first time through a heat carrier to become warm water, the warm water enters the buffer tank, absorbs waste heat dissipated by the inner container in the buffer tank and becomes high-temperature water after being heated for the second time, and the high-temperature water enters the inner container from the buffer tank and becomes steam after being heated for the third time through the first heating pipe below the inner container. The steam is heated for the fourth time through the second heating pipe in the rising process to become superheated steam, the superheated steam flows to the steam connecting pipe to flow out, the structure is simple, the cost is low, saturated steam can be directly and continuously heated in the inner container, and other heating equipment does not need to be additionally arranged.

The invention relates to a stretching system (1) for a plastic film (2), comprising a device (3) having a heat transfer device (3.1) for heat recovery from exhaust gas (3.3), by means of which heat energy recovered and transferable to the heat transfer device (3.1) is supplied to a treatment zone (Bn). According to the invention, the heat recovery is carried out by means of the temperature control device (13) at a temperature level that is so high that condensation of oligomers on the heat transfer surface of the heat transfer device (3.1) does not take place under all operating conditions. Thermal energy is transferred by means of the liquid heat carrier (4). The release point (B1, B2) and the absorption point (B9) of the thermal energy conveyed by means of the heat carrier (4) are separated.