2102 results about "Steam heating" patented technology

The invention relates to an air fryer with a bottom IH coil heating plate, and aims to solve the technical problems that the existing similar air fryer with upper and lower heating pipes is poorer in bottom heating temperature stability and more difficult to control, and meanwhile, the steam heating structure design and the inner pot putting induction detection structure design are too complicated and the production cost is higher. The air fryer is characterized in that an IH coil heating plate is arranged at a metal heat insulation layer at the bottom of the lower portion of an inner pot of the air fryer, a grill is arranged in the inner pot, the inner pot is a non-magnetic pot body or a ferrite pot body, and the grill is a ferrite grill; the baking tray is aligned with the IH coil heating tray below, and the grill in the inner pot is heated by the magnetic induction of the IH coil heating tray through the inner pot; when the inner pot is a non-magnetic pot body, a glass layer is arranged at the hollow part in the middle of the inner bottom of the inner pot; meanwhile, the IH coil heating disc serves as a microswitch, and whether the inner pot of ferrite is placed or not is sensed through the magnetic field generated by the IH electromagnetic module before use.

The invention discloses a high-pressure main engine LNG fuel supply system, and relates to the technical field of LNG fuel high-pressure main engines, the high-pressure main engine LNG fuel supply system comprises a pressurization unit, an evaporation unit and a conveying unit, a fuel inlet of a high-pressure evaporator of the evaporation unit is connected with a high-pressure liquid supply pipe, and a fuel gas outlet of the high-pressure evaporator is connected with a high-pressure gas outlet pipe; a heating medium inlet of the high-pressure evaporator is connected with a steam pipeline, a heating medium outlet of the high-pressure evaporator is connected with a condensate water pipeline, and the condensate water pipeline is emptied. The steam pipeline is connected with the heating medium inlet of the high-pressure evaporator, and the heating medium outlet of the high-pressure evaporator is connected with the condensate water pipeline, so that steam is directly introduced into the high-pressure evaporator, a steam direct heating mode is adopted, a middle heating medium circulating pipeline is omitted, and the system efficiency is improved; and the condensate water is discharged in an open mode, the safety of the system can be guaranteed essentially, leaked gas cannot be brought back to a safety area, and therefore the reliability of the ship is improved.

The invention relates to the technical field of industrial waste heat recycling, in particular to an electric heating device and method for superheating saturated steam generated in the evaporative cooling process of a converter, an electric furnace and a steel rolling heating furnace in the iron and steel industry. Clean energy electricity serves as a heat source, saturated steam is heated into superheated steam through the steam superheater, the quality of the saturated steam can be effectively improved, damage of steam condensation water is prevented, and meanwhile steam conveying loss can be reduced; and compared with a traditional fuel gas type overheating device, other emissions are not added, and the problem of environmental pollution cannot be generated. The method is particularly suitable for the superheating process of high-temperature flue gas of a converter and an electric furnace in steel production and saturated steam generated by evaporative cooling steam drums such as a supporting beam in a heating furnace, the quality of (saturated) steam can be greatly improved by adopting the method, meanwhile, the harm caused by condensation of steam into water due to temperature reduction can be prevented, energy waste is effectively reduced, and the production cost is reduced. And the method has high economic benefits.

The utility model discloses a wok, including a plurality of wok bodies, a transmission shaft, a stirring motor and an electromagnetic coil in a vertical direction, wherein the bottom of each wok bottom is provided with an electromagnetic coil, adjacent wok bodies are fixedly connected by a connecting plate, a feed port and an exhaust port are provided on the top of each wok body, a discharge port is provided on the side wall of each wok body, the feed port of each wok body is connected with the discharge port of the adjacent wok body through a feed pipe, and each exhaust port is connected with an exhaust pipe; the transmission shaft vertically penetrates each wok body and is connected with the stirring motor by transmission, and a wok scraper is provided on the transmission shaft in each wok body. The utility model effectively solves the safety hazard of the existing wok body mainly heated by steam, each layer of the wok body of the wok is heated by an electromagnetic coil, and the space between two adjacent layers of the wok body is hollowed out, which ensures good ventilation and heat dissipation, and ensures that the bottom of the wok will not be deformed due to heat, thereby ensuring the transmission of the transmission shaft.

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 invention relates to the technical field of hydrogen energy, in particular to a solid oxide electrolytic hydrogen production system and a control method thereof.The electrolytic hydrogen production system comprises water, a waste heat recovery module, a fused salt phase change energy storage module and a solid oxide electrolytic tank, and the waste heat recovery module comprises a water preheater and a steam heater; product gas generated by the solid oxide electrolytic tank passes through the water preheater and the steam heater in sequence; the fused salt phase change energy storage module comprises a fused salt reactor heat release device and a phase change energy storage fused salt reactor for providing heat for the fused salt reactor heat release device; after being powered by the water pump, water sequentially passes through the water preheater, the molten salt pile heat release device and the steam heater to absorb heat, is converted into water vapor and then flows to the solid oxide electrolytic tank; the fused salt phase-change energy storage module stores energy by using high-temperature phase-change mixed salt, and can convert low-ebb and low-price off-peak electricity of a power grid and abandoned electricity such as photovoltaic electricity and wind electricity into heat energy for storage, so that the consumption of electric energy is reduced, the energy utilization rate is improved, and the hydrogen production cost is reduced.

The invention relates to the technical field of expanded polystyrene production, and discloses an expanded polystyrene automatic molding control system and method.The system comprises a detection module, a data analysis module and a central control module, and the detection module collects mold temperature distribution, molded blank local density and steam pressure data in real time; the data analysis module calculates a temperature fluctuation index according to the temperature data, obtains a dynamic density compensation coefficient by means of a density model, and determines a forming quality deviation level; and the central control module adjusts the steam heating power according to the deviation level, determines and corrects the mold opening and closing rate in combination with the pressure and density change rate, and generates a motion trail control parameter. The method comprises the steps of data acquisition, calculation and analysis, parameter adjustment and instruction output. Through multi-parameter cooperative control, forming automation and precision are achieved, the quality stability and the production efficiency are improved, and the method is suitable for production of related products.

The invention provides a device and a method for removing MIBK (methyl isobutyl ketone) in raffinate for extracting and separating zirconium and hafnium, the device comprises a tank body, a liquid distribution ring is fixedly connected in the tank body, one side of the liquid distribution ring penetrates through the tank body and is outwards communicated with a feeding pipe, a plurality of spray heads are arranged below the liquid distribution ring in a penetrating manner, the outer end of the tank body is fixedly connected with a bracket, and the bracket is fixedly connected with a rotating shaft. According to the device, raffinate can be quickly conveyed into the tank body by arranging a liquid distribution ring and a spray head, rotation of a rotating shaft and a rotating plate can be completed in cooperation with a gear assembly, the fallen raffinate is scattered, it is ensured that the raffinate can uniformly fall on a steam heating pipe, and the raffinate is uniformly heated; meanwhile, the contact area of the gas phase and the liquid phase can be increased in cooperation with the condensation assembly, the phase splitting barrel and the grid plate, the MIBK separation efficiency is improved, and the purpose of rapidly removing oil is achieved through the principle that the volatility is affected by factors such as liquid diffusion and temperature.

The invention belongs to the technical field of hydrogen adsorption, leakage and sequestration simulation experiments, and particularly relates to a system and a method for detecting the hydrogen adsorption, leakage and sequestration capacities of soil. The system comprises a simulation bin system, a hydrogen inlet system, a helium inlet system, a water inlet system and a gas outlet system, the simulation bin system is divided into an air simulation bin, a sample bin and a gas source bin by a pressurizing device and a supporting device, and a water vapor heating disc is arranged in the gas source bin. The hydrogen inlet system is in valve control connection with the gas source bin, the helium inlet system is in valve control connection with the air simulation bin and the gas source bin, the water inlet system is in valve control connection with the steam heating disc, and the gas outlet system is in valve control connection with the air simulation bin and the gas source bin. The method comprises eight steps, and the processes of adsorption, leakage and sealing storage of hydrogen in soil when the hydrogen leaks upwards under different air temperatures and air pressures in the nature are simulated. Therefore, the system and the method can provide theoretical and technical guidance for earth surface exploration of natural hydrogen.

The invention provides an ice region ship ventilation system and a ship, and relates to the field of ship manufacturing, and the ice region ship ventilation system is characterized in that a first heater is mounted on an exhaust shutter; a second heater is mounted on the air inlet shutter; a steam heater is mounted in a fan chamber of the ship body; an outdoor temperature sensor is installed outside the ship body and used for detecting the outdoor temperature. An air duct temperature sensor is arranged on an air duct for blowing air in the fan chamber and is used for detecting the temperature of the air duct; the controller is connected with the first heater, the second heater and the outdoor temperature sensor; the cabin fan is arranged in the fan chamber, is controlled by the controller and is used for blowing air; the steam heater is connected with the air duct temperature sensor. The temperature requirement of a sailing cabin in an ice region can be met, the anti-icing, demisting and heating effects are remarkable, the system design is relatively simple, and equipment is convenient to arrange and easy to repair and maintain.

Provided is a method of manufacturing a glass article, including a molding step of heating a glass base material with a superheated steam to soften the glass base material, and deforming the softened glass base material.

The invention relates to the technical field of wastewater purification, in particular to a phosphorus-containing wastewater treatment system. Comprising a pre-purification unit, a deep purification unit, a membrane concentration unit and a multi-effect evaporation unit which are sequentially connected, the pre-purification unit is used for diluting phosphorus-containing wastewater and filtering impurities; the deep purification unit is used for receiving the wastewater treated by the pre-purification unit and filtering multivalent metal cations, macromolecular substances and divalent salts in the wastewater; the membrane concentration unit is used for receiving the wastewater treated by the deep purification unit and evaporating water at low temperature under vacuum negative pressure and steam heating so as to concentrate phosphoric acid; and the multi-effect evaporation unit is used for receiving the phosphoric acid concentrated by the membrane concentration unit and further evaporating water under steam heating so as to further concentrate the phosphoric acid, so that a phosphoric acid product with the concentration reaching the selling standard is obtained. The method is simple in process and low in operation energy consumption, phosphorus-containing wastewater can be efficiently recycled, pollution to the environment is reduced, and economic benefits are improved through recycling of phosphorus resources.

A turbine engine assembly includes a first case structure with a first flange and a second case structure that includes a second flange. The second flange is configured for securement to the first flange at a connection interface. At least one steam conduit is in thermal communication with the connection interface and configured to receive a portion of a flow of steam to heat the connection interface. Heating the connection interface provides for control of a thermal gradient generated by a difference in temperature in temperatures on either side of the connection interface.

The invention relates to the technical field of Chinese medicine concentration, and in particular to a Chinese medicine extraction and concentration device and a concentration method thereof; comprising a tank body, a stirring mechanism and a steam heating mechanism are arranged inside the tank body, the stirring mechanism comprises a rotating shaft, and the rotating shaft is provided with a heating part and a peristaltic suction part for heating the Chinese medicine from the middle of the Chinese medicine. The present invention makes the medicinal liquid evenly heated in the tank body through the synergistic effect of the stirring plate, the heating part and the steam heating mechanism of the stirring mechanism, while the peristaltic suction part circulates and draws the bottom medicinal liquid to the top for discharge, increasing the contact area between the medicinal liquid and the steam, significantly improving the efficiency of Chinese medicine concentration, and making the precipitation part in the medicinal liquid evenly distributed in the medicinal liquid, which helps to make the heat and material transfer more uniform and make the solvent evaporate more efficiently; at the same time, it can ensure the uniform distribution of the effective ingredients in the medicinal liquid, avoiding the loss of ingredients due to precipitation or stratification.

The utility model relates to an efficient accelerator production device using steam for heating, and belongs to the technical field of accelerator production. The device mainly comprises a reaction kettle, a thermal insulation layer, a valve, a weighing module, a sealing cover, a stirring mechanism, a feeding pipe, an exhaust pipe, a steam furnace, a heating pipe and a steam pipe, accelerator raw materials fall into the reaction kettle from the feeding pipe, the stirring mechanism stirs the raw materials, the problems of insufficient reaction of the raw materials and accumulation of solid substances at the bottom of the reaction kettle during mixing and stirring are avoided, and high-temperature steam generated by the steam furnace is conveyed into the heating pipe through the steam pipe to heat the raw materials in the reaction kettle. The raw materials are fully reacted, the dissolving speed of the raw materials is increased, the production efficiency of the accelerator is improved, the steam heating pipe is coiled in the heat preservation layer and the cavity structure of the reaction kettle and cannot be corroded by an accelerator stock solution, and the service life is prolonged.

The invention discloses a self-adaptive control system and method for a rotary dehumidifier, relates to the technical field of rotary dehumidifier self-adaptive control of electric heating, steam heating and high-temperature heat pump condensation heat heating regeneration, and solves the problems that the rotary dehumidifier is difficult to carry out self-adaptive dehumidification according to environment humidity during dehumidification; and the technical problem that the rotating speed of the dehumidification rotating wheel and the drying effect of heating of the heating device are mutually overlapped is neglected. The rotating speed of the second-stage dehumidification rotating wheel is dynamically adjusted through the indoor characteristic humidity, and the rotating speed of the primary dehumidification rotating wheel is dynamically adjusted through the first characteristic humidity and the second characteristic humidity; dynamically adjusting the heating power of a second-stage heating device based on the first dry air information and the second characteristic humidity and the rotating speed of the second-stage dehumidification rotating wheel, and adjusting the heating power of a preliminary heating device based on the third dry air information and the rotating speed of the preliminary dehumidification rotating wheel; the working state of the rotary dehumidifier can be adjusted in a self-adaptive mode according to changes of the environment and the internal state, and energy consumption is reduced.

The invention discloses an organic solvent recovery device. The device comprises a pretreatment mechanism, an adsorption mechanism, a steam furnace and the like. The pretreatment mechanism is provided with a filter and a cooler for primarily treating a solvent; the adsorption mechanism is composed of a spiral activated carbon plate, a central electrode and an interlayer electrode, the adsorption process of a solvent is optimized through an electric field, and the service cycle of an adsorption material is prolonged. A vacuum adsorption pump is further arranged in the adsorption mechanism, and the adsorption effect of solvent steam is enhanced by generating a vacuum environment. In addition, the device is further provided with a reversible power supply, reverse regeneration of the adsorption material can be achieved, and the replacement frequency is reduced. The steam furnace is connected with the adsorption mechanism, and solvent recovery is conducted through steam heating. And the rear end of the device is connected with a chimney discharge system to ensure that waste gas discharge meets environmental protection requirements. Through the double adsorption mechanisms and the innovative electrode design, the recovery efficiency is remarkably improved, the operation and maintenance cost is reduced, the environmental protection standard is met, and high economic benefits and social benefits are achieved.

The utility model relates to a steam condensate water system of a drying part of a paper machine. The steam condensate water system comprises main steam heating output equipment, a steam main pipeline, a heat recovery assembly and a plurality of heating pumps. When the steam condensate water system for the drying part of the paper machine is operated, steam is continuously conveyed through the main steam heating output equipment and then is respectively conveyed into the drying cylinders through the heating pumps, and the steam output in the drying cylinders is arranged in the independent steam-water separators for steam-water separation. Secondary steam of an independent steam-water separator can be gathered into the heating pump to be heated again, and the using amount ratio of the fresh steam to the secondary steam is adjusted through transmission of the heating pump, so that it is guaranteed that the overall steam using amount of the paper machine reaches the optimal level; and the water and the rest secondary steam are converged into the heat recovery assembly through the main steam-water separator to be heated again to the specified temperature and then transmitted, so that it can be ensured that part of the secondary steam returns to the heating system, and the rest secondary steam is fully recycled.

The invention discloses a high-efficiency thick oil emulsification catalytic viscosity reducer and a preparation method thereof, and the high-efficiency thick oil emulsification catalytic viscosity reducer comprises the following components in percentage by mass: 5-15% of a solvent, 0.1-10% of a metal catalyst, 0.1-10% of a rare earth catalyst, 1-15% of an emulsifier, 1-10% of a hydrogen donor and the balance of water. The preparation method comprises the following steps: S1, weighing the metal catalyst and the rare earth catalyst, adding the metal catalyst and the rare earth catalyst into water, and carrying out ultrasonic treatment to obtain a catalyst dispersion liquid; s2, adding the solvent and the emulsifier into the catalyst dispersion liquid, and stirring at 30-70 DEG C for 1-5 hours to obtain a mixture; and S3, adding the hydrogen donor into the mixture, and uniformly stirring to obtain the efficient thick oil emulsifying and catalyzing viscosity reducer. The method is suitable for viscosity reduction exploitation of common thickened oil and super-thickened oil, and economic benefit development of the thickened oil at the temperature of 240 DEG C or below can be achieved without cooperation with a steam heating measure.

The prefabricated stair mold comprises a first side mold body, a second side mold body and a curing temperature control mechanism, the side wall of the second side mold body is arranged to be in a sawtooth shape, a mold groove is formed between the first side mold body and the second side mold body, and a mold cavity and a sawtooth heat conduction plate are arranged in the second side mold body; the sawtooth heat conduction plate is attached to the inner wall of the second side die. By arranging the mold cavity, the heating groove, the cooling groove and a sawtooth heat conduction plate, heating steam is injected into the heating groove, the internal air pressure of the heating groove is increased, the sawtooth heat conduction plate is pushed, the sawtooth heat conduction plate is attached to the inner wall of the second side mold, and the sawtooth face of stair concrete is evenly heated; and after the steam is injected into the cooling tank, the sawtooth heat conduction plate is quickly separated from the inner wall of the first side mold, so that quick cooling is realized, and the defect that the steam is injected after being cooled in the traditional technology is overcome.

The present invention discloses a dye delivery system for continuous dyeing equipment, including a chemical material device, a hot water tank, a feeding device, a dye tank and a pipeline system connecting the above parts, wherein the chemical material device includes a chemical material cylinder, a weighing device in the cylinder, a liquid adding device, a chemical material stirring mechanism, a vibration mechanism and a liquid discharge device, the hot water tank includes a hot water tank body, a hot water delivery module and a steam delivery module; the hot water delivery module includes a hot water centrifugal pump, a first water outlet pipe, a second water outlet pipe and a water inlet pipe, the feeding device includes a bottom frame, a feeding tank body, a feeding stirring device and a heating device, and the steam delivery module includes a steam heating coil, a steam input pipe and a steam output pipe. The present invention can automatically weigh the weight of the powder material, and can also provide continuous and stable hot water, and the stirring effect of the feeding device is good.

The utility model discloses a regenerator for esterification reaction catalyst, which relates to the technical field of catalyst regeneration, and comprises a bracket, a reaction vessel arranged on the bracket, and a steam heating jacket sleeved on the outside of a sealing groove, wherein a sampling port is arranged on the reaction vessel, a gate valve is arranged on the sampling port, a feed port of the gate valve is connected with the reaction vessel through the sampling port, a connecting pipe is arranged on the gate valve, a sampling tank is threadedly connected on the connecting pipe, the sampling tank is connected with the discharge port of the gate valve through the connecting pipe, and a sealing component is arranged between the sampling tank and the connecting pipe. The utility model can make it unnecessary to increase the pressure in the reaction vessel or to cool down the steam heating jacket during sampling, and at the same time, the closing of the gate valve can ensure the sealing between the reaction vessel and the outside world, so that sampling can be made more convenient, quick and easy to operate, and the purpose of multiple sealing between the sampling tank and the reaction vessel is achieved, so as to ensure the normal and orderly progress of the regeneration work.

The utility model relates to the technical field of building material processing, and in particular to an energy-saving aerated brick autoclave, comprising a kettle body, the kettle body comprising an inner shell and an outer shell, the inner shell being mounted on the inner wall of the outer shell through a fixing ring; a kettle cover, the kettle cover being arranged at an opening on one side of the kettle body, the kettle cover being connected to the kettle body and being used to seal the kettle body; a steam generating assembly, the steam generating assembly being arranged at the top of the kettle body, the steam generating assembly penetrating the kettle body and extending into the kettle body to pass steam into the kettle body; a heating assembly, the steam heating group being arranged on one side of the kettle body, the heating assembly being connected to the steam generating assembly and being used to heat the gas in the steam generating assembly. The utility model can achieve uniform distribution of steam and improve product quality.

A jug for use with a frothing apparatus. The jug comprising: a vessel body for holding a liquid to be heated; a handle attached to the vessel body, the handle for holding the jug; a user interface for receiving an operation-related user input; a communication means adapted to communicate data associated with the jug to the frothing apparatus; and a controller for controlling the user interface and the communication means. In an embodiment, The frothing apparatus comprises: a steam heater, a steam nozzle, and a steam path providing fluid communication from the steam heater to the steam nozzle for delivering heating steam to the jug; communication means adapted to receive operating data from a cooperating communication means associated with the jug, the data comprising an operation-related user input; and a controller for controlling operation of the steam heater and the steam path based on the operation-related user input.

To provide a device capable of performing steam heating while agitating a cooked object at home.SOLUTION: A steam heating rotation machine comprises: a container into which a raw material is put; a blade rotating in the container; a motor for rotating the blade; a water tank capable of storing water; a water feeding pipe coupled from the water tank into the container; a pump for feeding water from the water tank through the water feeding pipe; a heater capable of heating simultaneously the water feeding pipe and the container; and a controller for controlling the motor, the pump and the heater. The steam heating rotation machine can perform steam heating while agitating the raw material, and allows production of even soy bean meat which is alternative meat at home.SELECTED DRAWING: Figure 1

The invention relates to an oil-containing sludge hydro-thermal treatment energy efficient utilization system and an operation method thereof, and the system comprises a preheating fluidization part which is used for preheating a fluidization material; the steam heating part is used for heating the materials and participating in the hydrothermal reaction; the steam heating part is used for supplying high-temperature steam to the hydrothermal reaction part so as to carry out material heating and hydrothermal reaction, and flash evaporation is carried out after the hydrothermal reaction; the condensing medium flows into the steam heating part after being heated; the gas from the preheating fluidization part is cooled and condensed to form low-temperature flash condensate; the flash tank is used for mixing to form a flash destabilized mixture; and the centrifugal separation part is used for centrifugally separating the flash destabilized mixture from the flash tank. The heat load and the cooling load of system operation are reduced, and energy conservation and consumption reduction are achieved; and the low-temperature flash evaporation condensate is mixed with the materials in the flash evaporation tank, so that the oil content of the residual solid phase after centrifugal separation is further reduced, the volatilization of light petroleum components in the condensate is reduced, and the safety and pollution risks are reduced.

The invention discloses a self-driven boosting steam heat supply system and an on-demand optimization matching method, and belongs to the technical field of industrial steam centralized heat supply and energy conservation. Comprising a steam heat source, a steam turbine, a steam compressor, user areas with different pressure requirements, an electric pressure reducing valve, an electric adjusting valve and a data acquisition control center. The system utilizes a steam turbine and a steam compressor to convert surplus energy of steam in front of a low-pressure user area into power for increasing steam pressure of a high-pressure user area, and gradient utilization of steam energy is achieved. According to the on-demand optimization matching method, user partitions are divided by analyzing user demands, a pipe network model is established by adopting pipe network mechanism modeling or data modeling, an intelligent adjustment algorithm is constructed, and a closed loop is regulated and controlled by means of a data acquisition control center. The problems that a traditional steam heat supply system wastes energy and cannot accurately match user requirements are effectively solved, heat source supply parameters and system energy consumption can be reduced, the energy utilization efficiency is improved, and good economic benefits and social benefits are generated.

The invention discloses a high-temperature solid oxide electrolyzed water hydrogen production system coupling photo-thermal power generation and thermochemical heat storage. The system comprises a power module, a thermochemical heat storage and air supply module, a water vapor supply module and a high-temperature solid oxide electrolyzed water module. The photo-thermal power generation system provides clean electric energy and high-temperature heat energy, the thermochemical heat storage module achieves high-density storage and on-demand release of heat energy through reversible reaction, the intermittent problem of renewable energy sources is solved, and high-temperature stable operation of an SOEC electrolytic cell is ensured. Through the coupling design of the thermochemical heat storage system and the SOEC, heat flow distribution is optimized, energy consumption of traditional electric heating is reduced, the external steam heating requirement and the hot air requirement are reduced, the total energy cost of hydrogen production is reduced, and the unit hydrogen production cost is remarkably reduced. The thermochemical heat storage module can stabilize the volatility of photo-thermal power generation, so that the system can still stably supply energy when sunlight is insufficient, the utilization rate of renewable energy sources is increased, clean production of green hydrogen is achieved, and the carbon neutralization target is met.

Disclosed in the present invention is a steam preheating system. The steam preheating system comprises at least one steam heating unit having a condensation section, a subcooling section and a liquid level tank, wherein the condensation section is configured to introduce steam, a liquid discharge port of the condensation section being in communication with the subcooling section by means of the liquid level tank; the liquid level tank is in communication with a steam introduction port of the condensation section by means of a steam balance pipe, condensate water drained from the condensation section through the liquid discharge port flowing into the liquid level tank by means of the gravity of the condensate water; the subcooling section is connected to a drain pipe configured to output the condensate water and provided with a drain regulation valve; and the opening degree of the drain regulation valve is controlled according to a liquid level signal of the liquid level tank. The steam preheating system uses a steam heating unit to heat a medium to be heated, and drained water in a condensation section into which high-pressure steam has been introduced is input into a subcooling section by means of a liquid level tank to exchange heat with said medium again in order that the temperature of the drained water reaches a certain subcooling, thus reducing the intensity of flash evaporation occurring in the drained water after the drain regulation valve in the drain pipe connected to the subcooling section, and being conducive to prolonging the service life of the drain pipe. Further disclosed in the present invention are a steam preheater and a garbage incinerator.

The utility model relates to the field of ammonia production equipment, in particular to a urea hydrolysis ammonia production reaction device which comprises a reaction tank, a urea solution inlet pipe fixedly communicated with the top of the side end of the reaction tank, a blow-off pipe fixedly communicated with the bottom of the side end of the reaction tank, and a steam heating assembly arranged in the reaction tank. A stirring assembly used for improving the heating efficiency of a urea solution is further arranged in the reaction tank, and an ammonia gas conveying assembly is fixedly communicated with the top of the reaction tank. The urea solution heating device has the beneficial effects that the urea solution can be effectively stirred in the heating process of the urea solution, so that the heating efficiency of steam to the urea solution is effectively improved, and the heating efficiency of the urea solution is improved. Therefore, the urea hydrolysis ammonia preparation efficiency is improved.