14 results about "Superheating" patented technology

The invention belongs to the technical field of boilers, and provides a superheating corner tube steam boiler and an operation method thereof. The superheating corner tube steam boiler comprises a boiler body, a boiler barrel, a superheater, an air preheater, an energy saver and a condenser; a water pipe system is arranged on the heating surface of the hearth and the flue gas channel, the water pipe system comprises a slag solidification pipe set and a convection pipe set, the flue gas channel comprises a first channel, a side flow channel and a second channel which are arranged in the flue gas flowing direction, and the slag solidification pipe set, a second superheater, a first superheater and the convection pipe set are sequentially arranged in the second channel in the flue gas flowing direction; the first superheater and the second superheater form a two-way steam system working synchronously, the first superheater comprises two stages of superheating structures, a first desuperheater is arranged between the two stages of superheating structures, and a second desuperheater is arranged at an outlet of the second superheater. The device can stably operate under the condition of low-calorific-value gas calorific value fluctuation, double-path steam is synchronously output, and load change of a steel production line is flexibly adapted.

The application provides a dehydrogenation system and method. The dehydrogenation system comprises a vaporizer, a superheater, a mixer, a dehydrogenation reactor, a heat conducting medium circulating unit and a separator, the shell side inlet of the dehydrogenation reactor is connected to the outlet of the mixer, the superheater and the shell side outlet of the vaporizer in sequence, the tube side outlet of the dehydrogenation reactor is connected to the tube side inlet of the superheater and the vaporizer in sequence, and the shell side inlet and the shell side outlet of the dehydrogenation reactor are connected to the heat conducting medium circulating unit. The dehydrogenation method comprises the following steps: after the dehydrogenation raw material is vaporized, superheated and mixed with a carrier gas, the dehydrogenation raw material is introduced into the dehydrogenation reactor to react; the dehydrogenation reactor is supplied with heat by the heat conducting medium circulating unit; after the material after the dehydrogenation reaction enters the superheater and the vaporizer to provide heat for the superheating and vaporization of the dehydrogenation raw material, the dehydrogenation product and hydrogen are obtained. The dehydrogenation system and method provided by the application improve the utilization rate of the catalyst, realize the step-by-step utilization of heat, and have the advantages of high efficiency, low energy consumption and the like.

This invention relates to the field of heat pump and refrigeration technology, specifically to an energy-saving CO2 heat pump refrigeration system with photothermal heat storage and vapor injection enthalpy enhancement, comprising a main circuit, a first enthalpy enhancement circuit, and a second enthalpy enhancement circuit. This invention is applied to refrigeration or heat pump operations. The first enthalpy enhancement circuit increases the compressor's discharge volume by injecting gas, thereby increasing the system's heating capacity. The second enthalpy enhancement circuit incorporates a photothermal heat storage exchanger to absorb sunlight for heat storage. This branch enhances the system's heating capacity by absorbing heat from the photothermal heat storage exchanger. In the main circuit, the regenerator and photothermal heat storage exchanger achieve stepped subcooling of the high-temperature CO2 fluid and superheating of the low-temperature CO2 fluid, improving the system's operating COP under low-temperature conditions. The low-temperature heat exchanger fins utilize a composite coating of photothermal and temperature-sensitive materials to achieve frost prevention and rapid defrosting and drainage without shutting down the system in low-temperature environments, avoiding frequent system start-ups and shutdowns and improving the system's operating performance and stability under low-temperature conditions.

This invention discloses a steam superheater, relating to the field of chemical waste heat recovery technology. It is used to reduce the temperature of the process gas at the inlet of the steam superheater and ensure the stability of the process gas temperature used for steam superheating, preventing the performance of the heat exchange tube material from deteriorating due to excessively high process gas temperatures, and simultaneously preventing fluctuations in the superheated steam temperature caused by fluctuations in process gas temperature. The steam superheater includes a waste heat boiler, a gas path regulating device, and a steam superheater body. The waste heat boiler is located at the inlet end of the steam superheater body along the flow direction of the process gas and includes a furnace drum, a central exhaust pipe, and a first heat exchange tube group. The central exhaust pipe and the first heat exchange tube group are located inside the furnace drum, with the first heat exchange tube group surrounding the central exhaust pipe. The gas path regulating device is located inside the furnace drum and includes a first valve, a second valve, and coaxially sleeved inner and outer cylinders. The inner cylinder is connected to the central exhaust pipe and is connected to the steam superheater body through the second valve.

The invention discloses a green power full-absorption type solid electric heat storage boiler-electrode boiler composite system and method, relates to the technical field of oil production engineering, and aims to solve the problems of insufficient green power absorption, equipment scaling corrosion and system capacity configuration. The system comprises a solid heat storage preheating section, an evaporation section, a solid heat storage overheating section, a heat preservation water tank, a steam heat accumulator and the like, the medium flow is monitored through a flow controller and a flow meter, and a fan set cooling system guarantees fan heat dissipation of the solid heat storage preheating section and the solid heat storage overheating section. According to the establishment method, the power proportion, the heat exchange amount, the mass of a heat accumulator and the volumes of a heat preservation water tank and a steam heat accumulator are determined based on a green power output curve; according to the working method, multiple modes are switched according to the input power of the green power system. The system can fully consume green electricity, provides stable steam, avoids scaling corrosion, and is adaptive to green electricity fluctuation scenes.

The invention discloses a steam superheater, relates to the technical field of chemical waste heat recovery, and is used for reducing the temperature of process gas at an inlet of the steam superheater, ensuring that the temperature of the process gas for steam superheating is stable, and avoiding performance deterioration of materials of heat exchange tubes caused by overhigh temperature of the process gas. And meanwhile, overheated steam temperature fluctuation caused by process gas temperature fluctuation is avoided. The steam superheater comprises a waste heat boiler, a gas path adjusting device and a steam superheater body. The waste heat boiler is arranged at the inlet end of the steam superheater body in the flow direction of process gas and comprises a boiler barrel, a central exhaust pipe and a first heat exchange pipe set, the central exhaust pipe and the first heat exchange pipe set are arranged in the boiler barrel, and the first heat exchange pipe set is arranged around the central exhaust pipe; the gas path adjusting device is arranged in the furnace barrel and comprises a first valve, a second valve, an inner barrel body and an outer barrel body, the inner barrel body and the outer barrel body are coaxially arranged in a sleeved mode, and the inner barrel body communicates with the center exhaust pipe and communicates with the steam superheater body through the second valve.

The present invention provides an undercooling solidification method for preparing an amorphous or nanocrystalline soft magnetic alloy with high Fe content and the applicable amorphous or nanocrystalline alloy composition. The undercooling solidification is realized by glass purification combined with cyclical superheating or electromagnetic levitation melting. An undercooling solidification alloy is prepared into amorphous strips or powders through rapid quenching or atomization of melt, and can be prepared into a nanocrystalline alloy through heat treatment. The chemical formula of the applicable amorphous or nanocrystalline alloy is FeSiBM, wherein M is one or more of P, C, Nb, Mo, Zr, Hf, Mo, Y, Cu and Co. The amorphous or nanocrystalline alloy prepared by undercooling non-equilibrium solidification has the characteristics of high amorphous forming ability, high saturation magnetization and low coercive force.

The present disclosure provides an ammonia production plant in which a heat exchanger for steam generation (HP and / or MP steam) and / or steam overheating (utilizing process stream) is arranged downstream of the ATR section and between a high temperature (HT) shift section and a subsequent second shift section. In this manner, since partial steam superheating is performed in the process cooling roll set, less steam is generated at the front end and less steam superheating is required in the combustion type steam superheater.

This invention discloses a process for directly feeding chloromethane from a crude monomer tower. The gaseous phase, primarily composed of chloromethane, is discharged from the top of the crude monomer tower via a top discharge pipe and processed in two separate paths: The first path is a direct feed path: the gaseous chloromethane is passed sequentially through a flow regulating valve and a flow meter for precise flow control before being directly fed to a chloromethane superheater for superheating and participation in the fluidized bed reaction. The second path is a reflux path: the gaseous chloromethane enters a condenser, and the condensed liquid enters a crude monomer reflux tank and is then returned to the crude monomer tower via a reflux pump. Compared to existing technologies, this invention avoids the multiple phase change processes of chloromethane first condensing and then vaporizing by directly feeding a portion of the gaseous chloromethane from the top of the tower to the superheater. This effectively reduces the consumption of steam and circulating water in the organosilicon monomer synthesis process while ensuring product quality.

A kind of fluid control assembly and heat management system, fluid control assembly can be applied to heat management system, fluid control assembly has passage and interface, passage is communicated with interface, fluid control assembly is respectively connected with condenser, evaporator, expansion element in heat management system by interface, by at least part of the passage in the condenser after and at least part of the passage in the expansion element before being located by fluid control assembly It is arranged close to the at least part in the passage after evaporator, so that the heat exchange of the channel part close to each other can be carried out, it is beneficial to make the working fluid in the passage after being condensed by condenser and before expansion element supercooling, the working fluid in the passage after being heated by evaporator superheating, compared with the supercooling and superheating of working fluid in the system by additionally increasing an intermediate heat exchanger, it is beneficial to make full use of the heat exchange of heat energy between passages, it is beneficial to reduce system energy consumption, improve heat exchange efficiency.

The application discloses a non-freezing and high-efficiency cold energy recovery system and method for low-temperature liquid gasification, which comprises an evaporator, a superheater and a regenerator. The evaporator realizes complete vaporization and superheating of the liquid phase through a plurality of recirculation gas streams from the low-temperature liquid itself. The superheater performs secondary heating on the vaporized gas by using a heat medium to generate a first-stage high-temperature backflow. The regenerator performs re-warming treatment on the temperature-reduced gas stream after heat exchange, so that the temperature-reduced gas stream reaches a thermodynamic state capable of re-entering the evaporator. The three parts of the system construct a closed gas phase circulation structure, cold energy can be recovered in multiple stages, the low-temperature liquid is completely isolated from the heat medium, and freezing is effectively avoided. By adjusting the circulation times and flow parameters, different temperature gas products can be output, and a cooling heat medium can be generated at the same time, and the system is widely applicable to the fields of LNG gasification, industrial refrigeration, cold chain logistics and the like.

The utility model relates to the technical field of steam superheating equipment, in particular to a steam superheating furnace. The boiler comprises a boiler body, a plurality of combustors located at the bottom of the boiler body, a chimney pipe arranged at the top of the boiler body and a radiation coil pipe arranged on the outer wall of the boiler body. Wherein the radiation coil pipe is arranged on the outer side wall of the furnace body through a radiation steel structure, and a radiation lining for preserving heat of the radiation coil pipe is arranged on the radiation steel structure. According to the utility model, simultaneous heating of various kinds of steam is realized; the heating requirements of different kinds of steam on working condition change are met, the universality of the steam superheater is improved, and graded efficient utilization of energy is achieved.

This utility model relates to the technical field of waste sulfuric acid regeneration equipment, specifically a high-temperature acidic flue gas superheating device. It includes a split-type superheating device, with anti-corrosion layers and L-shaped overflow baffles fixedly installed on the upper and lower inner sides of the device, respectively. An annular overflow groove is formed between the overflow baffles and the corresponding inner walls of the split-type superheating device. This utility model has a reasonable and compact structure, is easy to use, and by fixing the anti-corrosion layer to the upper inner side of the split-type superheating device, and connecting the liquid inlet end of the device to the acidic coolant pipeline via a flexible hose, it achieves the goal of preventing corrosion of the high-temperature acidic flue gas as it passes through the device. It features safety and reliability, flexible and easy disassembly, good water resistance and sealing, and a small overall weight, reducing the load-bearing coefficient of subsequent equipment, facilitating operation, improving work efficiency, and significantly reducing subsequent installation and maintenance costs.

This application provides a refrigeration system. By a regenerator with an inlet on a primary side connected to an outlet of a condenser, an outlet on the primary side connected to an inlet of an expansion valve, an inlet of a secondary side connected to an outlet of an evaporator, and an outlet of the secondary side connected to an inlet of a compressor, a medium-temperature and high-pressure refrigerant liquid discharged from the condenser and a part of a low-temperature and low-pressure refrigerant gas discharged from the evaporator exchange heat in the regenerator, thereby improving subcooling of the refrigerant liquid at the inlet of the expansion valve and superheating of the refrigerant gas at the inlet of the compressor.