643 results about "Superheated water" patented technology

The invention discloses a method for recycling billet residual heat and a device thereof; water is treated by softening; superheated water is obtained through a steel making cooling system, then the superheated water and discharged billet exchange heat to obtain water vapour; the method comprises the following specific steps: A. superheated water obtained by softening tap water or cooling water is stored in a water storage tank; B. the superheated water in the water storage tank referred in the step A is conveyed to steel tubes of a heat exchange device by a high-pressure water pump through a pipeline; billet is pushed into the heat exchange device surrounded by the steel tubes; heat energy of the billet is dispersed out in order that water in the heat exchange device becomes high-temperature and high-pressure water vapour; C. the high-temperature and high-pressure water vapour passes through a superheater and impels a steam turbine to drive a dynamo to generate power; D. the water vapour after being utilized by the steam turbine is condensed into condensed water; the condensed water enters a water treating system by the pipeline, is treated by the water treating system and conveyed to a cooling water softening system of the step A by the pipeline; through the method, the device recycles cooling water, can dramatically recycle the billet residual heat in high efficiency and is stable and reliable.

A hot water system (10) comprising a water storage tank (14) and an instantaneous-type water heater (12). The water storage tank (14) has an inlet (22) and outlet (24). The instantaneous-type water heater (12) has an inlet (18), in fluid communication with a mains water supply (26), and an outlet (20), in fluid communication with the inlet (22) of the tank (14). The water heater (12) energises in response to a flow of water through the water heater (12).

The present invention provides a heat treatment system, which includes a treatment chamber having an input port and a discharge port for charging and discharging materials to be treated. A heating system including a plurality of pipe-like heaters positioned one after another in serial arrangement is provided so that the heating temperature is gradually increased for heating the steam or the atomized water introduced from the water feeding system into the heaters by applying voltage on the heaters to turn the steam and the atomized water to superheated steam, and for performing heat treatment on the materials to be treated by injecting the superheated steam into the treatment chamber. A circulating system is provided for sucking the superheated steam and the dry distillation gas in the treatment chamber and for supplying the steam and the gas again into the treatment chamber after deodorizing and filtering, and a control unit is provided for controlling operating conditions such as supply quantity of the steam, duration of treatment, etc.

The invention discloses a process and equipment for converting carbon dioxide in flue gas into natural gas by using dump power energy. According to the process, water is electrolyzed by using the dump power energy to generate hydrogen gas; the hydrogen gas and carbon dioxide captured from industrial flue gas are enabled to generate methanation reaction; meanwhile, water is heated by using the heat generated by the methanation reaction to generate superheated water vapor for driving a steam turbogenerator to generate power which is used for supplementing power energy for electrolyzing water, and thus natural gas which can be conveniently stored or conveyed is obtained by synthesizing. The equipment is mainly formed by combining a transforming and rectifying device, an electrolytic bath, a steam turbogenerator, a carbon dioxide heater, at least two-stage of fixed bed reactors, various indirect heat exchangers, a steam drum, a natural gas condenser and a process water pipeline. According to the process and equipment disclosed by the invention, the defects that internet obstacles exist or power is excessive in a short time and difficult to store in a mode of generating power by using renewable energy sources are effectively overcome, the problem that the environment is polluted by room temperature gases in a mode of generating power by using fossil energy is effectively solved and the renewable energy sources and carbon dioxide waste gas can be reasonably utilized.

The invention relates to a process for efficiently preprocessing lignocellulose. The process adopts the following procedures of stepwise optimizing and hydrolyzing: firstly, boiling the lignocellulose in overheated water to ensure that most hemicellulose is dissolved into oligosaccharide; continuously reacting the boiled mixture in a special flash evaporation reactor; and gradually changing reaction temperatures in the process of reaction to slow down xylose decomposition as far as possible and ensure that the hemicellulose is more completely transformed into xylose. The process has the advantages of simpleness, low cost, reasonable energy utilization, no solid-liquid separation in stepwise process, direct hydrolysis on the hot mixture, energy saving and high hydrolysis efficiency of processed cellulose on enzyme.

A power generating system and method operating at high pressure and utilizing a working fluid consisting of a mixture of compressed non-flammable air components, fuel combustion products and steam. The working fluid is substantially free of CO and NO.sub.x. Fuel and compressed air at an elevated temperature and at a constant pressure are delivered to a combustion chamber, the amount of air being chosen so that at least about 90% of the oxygen in the air is consumed during combustion. The quantity of air and fuel supplied to the combustion chamber may be varied provided a constant fuel to air ratio is maintained. Superheated water is delivered under pressure to the combustion chamber, and is converted substantially instantaneously to steam. The quantity of water delivered is controlled such that the latent heat of vaporization of the water maintains the temperature of the working fluid at a desired level. Heat may be transferred from the working fluid exiting the work engine to the water to heat the water to the desired temperature for delivery to the combustion chamber. The quantity, temperature and pressure of the air, fuel and water introduced in to the combustion chamber are independently controllable. A zoned burner may be employed in which a portion of the compressed air may be mixed with the fuel in a first zone prior to ignition, with the remaining compressed air being added at one or more locations downstream of the point of ignition.

A substrate treating method for performing a predetermined treatment of substrates. The method includes a step of performing chemical treatment of the substrates with a chemical, and a step of performing deionized water cleaning treatment of the substrates with superheated steam obtained by heating deionized water.

Biomass material is converted into precursors for hydrocarbon transportation fuels by contacting the biomass with liquid superheated water or supercritical water to depolymerize and deoxygenate the biomass into the transportation fuel precursors. Temperatures above 200° C. and preferably above 300° C. are preferred with supercritical water at temperatures above 374° C. and pressures above 22 MPa providing a capability for higher conversion rates.

The present invention provides a method for preparing granular activated carbon, comprising the following steps: charring the granular or shaped shell under 400 to 500 degrees centigrade for 3 to 16 hours; under water vapour and superheated water vapour environment, carrying out a first activation, in which the activation temperature is 400 to 900 degrees centigrade, and the activation time is 6 to 16 hours, then a second activation, in which the activation temperature is 800 to 1200 degrees centigrade, and the activation time is 2 to 10 hours; cleaning the activated granular carbon with hydrochloric acid, nitric acid or phosphoric acid, wherein the said acid, the concentration is 0.1-20% by wt, the cleaning temperature is 50 to 120 degrees centigrade, and the cleaning time is 0.2 to 16 hours; washing the granular carbon cleaned by acid in the foremenioned step with deionized water to be neutral, then drying and screening it to obtain finished activated carbon. The activated carbon prepared from the present invention has both superior specific surface and superior strength, is especially suitable for serving as support of the supported catalyst.

Biomass pyrolysis oil is converted into precursors for hydrocarbon transportation fuels by contacting the oil with liquid superheated water or supercritical water to depolymerize and deoxygenate the components of the oil and form the transportation fuel precursors. Temperatures above 200° C. and preferably above 300° C. are preferred with supercritical water at temperatures above 374° C. and pressures above 22 MPA providing the capability for fast conversion rates.

The invention provides a technique for preparing activated carbon from a wood raw material by an external-heating-free one-step process and a carbon activating device. An internal-heating drying converter, an external-heating carbonization converter and an internal-heating activating converter are utilized to prepare the activated carbon; the wood raw material is dried in the internal-heating converter to remove moisture by using heating exhaust of the external-heating carbonization converter; the generated water vapor is discharged via a chimney came along the drying medium, thereby avoiding influencing the flammability since the water vapor is mixed with the combustible gas generated during carbonization; the dried raw material falls into the external-heating carbonization converter to perform carbonization, wherein the heating medium is high-temperature activated exhaust from the activating converter; the combustible gas generated in the carbonization process is introduced into the activating converter; the inner wall of the activating converter is also provided with a vapor pipe; a right amount of superheated water vapor can be introduced to perform activating reaction with carbon at high temperature so as to generate hydrogen, carbon monoxide and other combustible gases; the inner wall of the activating is provided with an air pipe; and a proper amount of air can be introduced to combust the combustible gas, thereby keeping the activating temperature.

A method and apparatus for gasifying carbonic material in order to produce carbon monoxide and hydrogen; the method comprises the following steps: (a) providing carbonic material; (b) heating, by means of microwave radiation, the carbonic material provided until a plasma point cloud forms in the carbonic material; (c) causing the cloud of plasma points of carbonic material to react with superheated water vapour in order to produce a synthesis gas; and (d) purifying the produced synthesis gas by refeeding it through the cloud of plasma points in the carbonic material wherein it is broken up by microwave radiation of step (b) to achieve the generally complete transformation of the synthesis gas into carbon monoxide and hydrogen. Additionally the cloud of plasma points reacts with oxidation gas (air, oxygen or gas enriched with oxygen) in order to produce the synthesis gas.

An adsorbent including a porous member having holes and a nanostructure formed on at least a portion of a surface of the porous member, and an air cleaning device including the adsorbent. A porous filter including a porous member having holes and a nanostructure formed on at least a portion of a surface of the porous member, and an air cleaning device including the porous filter. A method of cleaning air for decomposing a hazardous substance using the porous filter and a decomposition gas including a superheated water vapor. A method of manufacturing a porous filter including the steps of growing a nanostructure on at least a portion of a surface of a porous member having holes, allowing a catalyst particle to be contained in a dispersion gas including a superheated water vapor, and spraying the dispersion gas on a surface of the nanostructure to attach the catalyst particle thereto.

The invention relates to an internal combustion engine structure with superheated water being sprayed into a cylinder. The internal combustion engine structure with the superheated water being sprayed into the cylinder comprises an internal combustion engine cylinder block, a throttle valve, an oil sprayer, a sparking plug and a water spraying nozzle and further comprises a condenser, a heat exchanger, a three-way electromagnetic valve, a high-pressure water rail and an electronic control unit. The condenser is connected to the exhaust output end of the internal combustion engine cylinder block. The output end of the condenser is connected with the heat exchanger and a first input end of the three-way electromagnetic valve. The output end of the heat exchanger is connected with a second input end of the three-way electromagnetic valve. The output end of the three-way electromagnetic valve is connected with the high-pressure water rail. The high-pressure water rail is connected with the water spraying nozzle. According to the internal combustion engine structure with the superheated water being sprayed into the cylinder, the high-pressure superheated water is sprayed into the cylinder, high-temperature steam is formed through flashing boiling of the superheated water, heat in the cylinder is further absorbed, the superheated water is used as an extra work doing medium, and the heat efficiency of an internal combustion engine system is improved; a control model is established to achieve real-time calculation of the pressure and temperature inside the cylinder, so that it can be guaranteed that the water sprayed into the cylinder is in the superheated state, and therefore the heat efficiency of the internal combustion engine is improved.

The invention relates to a coal gasification black water and grey water treatment system with high heat recovery efficiency. The treatment system is characterized in that grey/black water from a gasification segment is subjected to three-stage flash evaporation treatment, namely, high-pressure flash evaporation, low-pressure flash evaporation and vacuum flash evaporation, and direct heat exchange is performed through a hot water tower. In the coal gasification black water and grey water treatment system disclosed by the invention, direct heat exchange equipment is provided, so that indirect heat exchange equipment is omitted, the heat recovery efficiency is increased, and the energy utilization rate is increased; meanwhile, the equipment quantity and work flow are simplified on the whole, so that the equipment blocking risk is lowered, and the equipment overhauling workload is greatly lowered. The invention further provides a coal gasification black water and grey water treatment method with high heat recovery efficiency.

The invention relates to a multistage double effect distillation seawater desalination technology with heating seawater by solar energy. The technology comprises the following steps: seawater is delivered to a high cistern by a seawater pump; the seawater in the high cistern is delivered to a system for water supply through a water supply tube and a condenser inlet tube; the seawater is heated to a certain temperature by adsorbing latent heat of steam in an evaporator through all condensers of the system, and enters the evaporator after being heated to a designed temperature by a rapid heater with solar energy; the seawater enters the evaporator, becomes superheated water and is gasified rapidly and partially because a pressure in the evaporator is controlled to be lower than a saturation vapor pressure corresponding to a temperature of hot seawater; and a part of ungasified hot seawater enters a next stage evaporator and a part enters heat-collecting tubes at two sides of the evaporator. The heat-collecting tubes are provided with annular imbibition films, and the hot seawater flows from top to bottom after entering the heat-collecting tubes. In a flow process, the hot seawater is delivered to upper half parts of inner cavities of the heat-collecting tubes because of capillary imbibition actions of the imbibition films. The hot seawater is evaporated to steam because the heat-collecting tubes have a high temperature under the sunlight, the steam rises along the inner cavities of the heat-collecting tubes and enters the condenser to obtain fresh water which flows into a fresh water tank and then is output by a fresh water tube. Unevaporated concentrated seawater enters a concentrated water tank and is ouput by an inlet/outlet tube.

The invention relates to a complete methanation reaction device for synthesis gas. The device consists of a tube-shell reactor, a heat exchanger, a steam pocket, a make-up water pump, a condenser and a gas-liquid separator, wherein a catalyst is filled in a tube of the reactor; the shell pass is superheated water for removing heat; heat released in methanation reaction is absorbed through the phase change of high-pressure superheated water in the shell pass of the reactor and taken out of the device; the generated steam enters the steam pocket, is subjected to gas-liquid balance and can directly form superheated steam to be supplied to the outside; the temperature of a catalyst bed in the tube of the reactor is regulated and controlled by controlling the balance pressure of the superheated steam; reaction product exit gas exchanges heat with raw material gas and is continuously condensed; and a gaseous product and a liquid product are separated by the gas-liquid separator. The device can realize the continuous and stable operation of the complete methanation reaction of the synthesis gas, can effectively improve heat transfer efficiency and control the temperature of the reaction bed in a phase change heat transfer mode at a high temperature and under high pressure, expands the operation range of the complete methanation reaction of the synthesis gas, and can effectively recycle the heat released in the reaction.

Disclosed is a cold energy recovery-type variable-capacity air-source heat pump system, relating to combined heating and refrigerating systems running in an alternating or synchronous manner, wherein a first subsystem and a second subsystem share a double-channel variable-capacity heat exchanger; a heat exchanger main body comprises two manually independent refrigerant pipe pass channels, and a refrigerant in the two channels synchronously carries out heat exchange with hot medium water in a shell pass channel; the shell pass channel establishes a water-medium heat-supplying circulation by means of a hot water circulation pipeline and a hot water circulation pump; the first subsystem and the second subsystem are connected to the two refrigerant pipe pass channels via a control valve group.

The invention relates to a method for regulating the indoor temperature and a dual-temperature control valve for implementing the method. The method is used for regulating the indoor temperature of an air conditioning system in a cascade manner by means of cooling and dehumidifying indoor air by the aid of cold water in summers and heating the indoor air by the aid of hot water in winters, and the dual-temperature control valve is used for implementing the method. The method and the dual-temperature control valve have the advantages that an indoor temperature cascade regulation system comprises two regulators which are serially connected with each other to work, and the temperature of supplied air or the temperature of return water is used as an auxiliary variable, so that the indoor temperature which is a main variable can be stabilized; the auxiliary variable has a largest limiting value when refrigerating and dehumidifying requirements need to be met simultaneously in summers, regulating valves are switched off when the indoor temperature is close or equal to a given value, accordingly, the indoor humidity can be taken into consideration while the requirement on the indoor temperature is met, the refrigerating capacity of the cold water is saved, the comfortableness of an indoor environment can be guaranteed, a water flow rate and the overshoot further can be reduced, the transition time can be shortened, dynamic characteristics of procedures can be improved, particularly, secondary disturbance resistance such as water-temperature resistance and water-pressure-variation resistance can be greatly improved, and purposes of further improving the regulation quality of the system, reducing power consumption of water pumps and improving the efficiency of a main unit can be achieved.

The invention relates to a device and a method for displacing, exhausting and mining coal seam gas by damp and hot water injection. The device comprises a high and low pressure water injection device, a high-pressure-resistant explosion-proof heating device and a gas exhausting and mining device, wherein the high and low pressure water injection device comprises a water storage tank, a water pump motor, a flow meter, a high-pressure water pump and a high-pressure water pipe; the high-pressure-resistant explosion-proof heating device comprises an explosion-proof shell, a heating module, a control circuit board, ceramic asbestos filling and a quick coupler; the gas exhausting and mining device comprises a main pipe for exhausting and mining, an exhausting and mining hose and an exhausting and mining branch pipe. According to the whole device, the purposes of coal seam gas displacement by injection of high-temperature water and superheated water under high or low pressure, coal body temperature and moisture increasing and gas exhausting and mining efficiency improvement can be realized, mine and gas outburst prevention and cure and dust prevention can be integrated, and the device is simple to operate. Especially for a low-permeability coal seam or situations that gas content is high after the coal seam is exhausted and mined for a period of time and the gas is difficult to exhaust and mine, purposes that the gas content of the coal seam of an exhausting and mining area can be quickly lowered and the outburst is eliminated in short time can be realized.