56 results about "Oxyhydrogen" patented technology

The invention provides a preparation method and device of an optical fiber preform, the preform and an optical fiber. The device comprises a quartz accessory, a first heating furnace, a second heating furnace and a clamp, the first heating furnace can move relative to the quartz accessory so as to heat a sleeve of the quartz accessory, and the clamps are arranged at the upper end and the lower end of the quartz accessory; the quartz accessory comprises a core rod, a core rod tail handle connected with the core rod, a sleeve formed by a quartz tube containing a negative dopant and the core rod, and a sleeve tail handle connected with the sleeve; a medicament chamber is arranged in the core rod tail handle; an air outlet hole is formed in the medicament chamber; the second heating furnace is used for heating the medicament chamber. By means of the device, the doping and melting shrinkage process of alkali metal can be achieved at a time, the preparation efficiency is improved, an oxyhydrogen flame heating process is replaced with a melting process, and the core rod utilization rate is increased.

The invention provides a multi-degree-of-freedom cooperative control-based quartz tube and tube cap oxyhydrogen flame automatic seal welding method. The method comprises the following steps of S1, vacuum preparation: fixing a quartz tube loaded with indium phosphide polycrystal materials and a tube cap on a positioning platform for vacuumizing; the three-dimensional coordinates of the quartz tube and the tube cap are obtained through laser scanning, a seven-axis mechanical arm path is generated, and the fitting error is smaller than or equal to 0.05 mm; s3, a preheating stage; s4, a heat sealing stage, wherein the temperature is kept constant after temperature rise, and the circumferential speed of a mechanical arm is 0.8-1.2 rad / s; s5, a slow cooling stage, wherein the temperature is reduced to 700 DEG C, and the moving speed is 8-12 mm / s; and S6, airtightness detection: the standard is less than or equal to 5 * 10 Pa.m / s. The problem of quartz tube and tube cap curved surface welding is solved through four-degree-of-freedom dynamic compensation, thermal field stable control is achieved through gradient gas distribution, the vacuum sealing quality is guaranteed through time sequence interlocking, and the operation reliability is guaranteed through a millisecond-level safety mechanism.

The invention relates to a direct-current pulverized coal burner, in particular to a direct-current pulverized coal burner for a solar coupling SOEC system. The problems that in the prior art, a coal power unit only depends on pulverized coal combustion, the stable combustion effect is poor under the rated load of 20%-30% or below, and combustion is unstable are solved. The catalytic combustion effect is achieved in the combustion process of mixing hydrogen, oxygen and pulverized coal airflow, the hydrogen, the oxygen and the pulverized coal airflow serve as stable ignition heat sources, combustion is rapid, a large amount of heat is released, combustion of the hydrogen and the oxygen activates the temperature, pulverized coal volatile matter is promoted to be separated out, pulverized coal is ignited, combustion is more stable, and combustion efficiency is improved. The stable combustion load and the unburned loss of the combustor can be greatly reduced only by adding a small amount of oxyhydrogen, the temperature level at the initial stage of pulverized coal combustion is improved, long-time low-load efficient stable combustion of the combustor can be achieved, stable combustion of a coal power unit under the rated load of 20%-30% is achieved, and the minimum stable combustion load can be reduced to 15%. The invention belongs to the technical field of combustors.

A method for operating a piston engine is disclosed, in which a water dispersion containing a reactant is supplied to the combustion chamber of the piston engine, wherein a heating element is placed in the combustion chamber. A first explosion is triggered by the explosive vaporization of the water contained in the water dispersion, by bringing the water dispersion into contact with the heating element and thereby heating it above its boiling point. A second explosion is triggered simultaneously with or immediately after the first explosion, by heating the vaporized water at the heating element with the reactant to a process temperature, thus causing a first chemical reaction in which gaseous hydrogen is produced. This hydrogen combines with process oxygen present in the combustion chamber, under the influence of the process temperature maintained in the combustion chamber by the heating element, in an oxyhydrogen reaction to form water.The expansive reaction energy generated by the first and second explosions is converted into mechanical kinetic energy by the movement of the piston.

A breathing system of a concentration-adjustable oxyhydrogen generator is used for changing the concentration of gas breathed by an assisted person and comprises an oxyhydrogen supply assist device (13), pure water electrolysis oxyhydrogen manufacturing machines (1 and 1 '), a moist bottle (3) and a hydrogen concentration detector (14). Wherein the pure water electrolysis oxyhydrogen manufacturing machine (1, 1 ') comprises ion exchange membranes (10, 10'), and the two sides of the ion exchange membranes (10, 10 ') are coated with oxidation catalyst layers (100, 100') and reduction catalyst layers (102, 102 ') respectively; a pair of anode metal layers (110, 110 ') and cathode metal layers (112, 112') having pores (114); anodes (120, 120 ') conductively connected to the anode metal layers (110, 110') and cathodes (122, 122 ') conductively connected to the cathode metal layers (112, 112'); the sealed containing body (2, 2 ') of the structure is used for containing the pure water electrolysis hydrogen and oxygen manufacturing machine (1, 1'), and the sealed containing body (2, 2 ') is provided with a water injection hole (20), a hydrogen hole (22, 22') and an oxygen hole (24, 24 '). The moist bottle (3) comprises an oxygen transmission pipe (32), a hydrogen transmission pipe (30), a mixed moist output pipe (34) and a bottle body (36); the mixed moist output pipe (34) is connected to the hydrogen and oxygen supply assistor (13); and one end of the oxygen transmission pipe (32) and one end of the hydrogen transmission pipe (30) are respectively inserted into clean water.

The invention relates to a welding device and a control method thereof.The welding device comprises a furnace body, a heating assembly and a clamping assembly, and the furnace body is provided with a heating cavity; the heating assembly comprises a graphite piece and an electromagnetic coil which are arranged in the heating cavity, and the electromagnetic coil is wound around the periphery of the graphite piece and used for being electromagnetically coupled with the graphite piece so that the graphite piece can emit heat; the clamping assembly comprises two clamping pieces which are oppositely arranged in the first direction, the clamping pieces at least can move in the first direction, and the clamping pieces are used for at least fixing the welding end of the quartz piece in the heating cavity. According to the technical scheme, pollution can be reduced, and the pollution problem caused by direct contact of flames in traditional oxyhydrogen flame welding is solved.

The application discloses a preparation method of an iron-based honeycomb filled circular pipe thin-wall structure reinforced aluminum-based composite material, and belongs to the technical field of metal composite material preparation.The method comprises the following steps: calculating the required mass of metal ingot according to the volume of the filled pore and the density of the aluminum-based solid material; stacking the iron-based honeycomb filled circular pipe thin-wall structure and aluminum ingot into a corundum ceramic boat, with the aluminum ingot above the thin-wall structure; placing the corundum ceramic boat in a high-temperature resistant glass tube; using a vacuum pump to vacuumize the two; then using oxyhydrogen welding to seal the tube; placing the glass tube in a sintering furnace to perform sintering; after sintering is completed, cooling the furnace to room temperature, then taking out the sample, and the iron-based honeycomb filled circular pipe thin-wall structure reinforced aluminum-based composite material is obtained.The method avoids the generation of an oxide layer between the Al / Fe alloy, the obtained composite material interface is complete fusion without obvious boundary, the method is simple and efficient, the excess aluminum-based material can be recycled, and the energy consumption and cost are low.

The invention belongs to the technical field of new energy hydrogen production, and particularly relates to an inland river multifunctional ship economic dispatching strategy considering electric hydrogen and oxygen port crossing trade. Comprising the steps that a day-ahead scheduling model is constructed, and the day-ahead scheduling model comprises a target function, a multifunctional ship space transfer constraint and a multifunctional ship energy constraint; wherein the target function takes the minimum daily comprehensive operation cost of the multifunctional ship as a target, and the operation of the hybrid power ship is optimized; the multifunctional ship space transfer constraint comprises the steps that a multifunctional ship can be transferred among different ports; the multifunctional ship energy constraint comprises the steps that the multifunctional ship is provided with a storage battery and can be flexibly charged and discharged, the multifunctional ship can carry out hydrogen adding or hydrogen selling at a port and can generate electricity through hydrogen energy, and the multifunctional ship can carry out oxygen adding or oxygen selling at the port. According to the invention, the maximization of the operation economy of the electric oxyhydrogen port crossing trade is realized through the multifunctional inland river ship, and the comprehensive utilization rate of energy resources is improved.

The utility model discloses a water-gas separation device of an oxyhydrogen generator, and relates to the technical field of oxyhydrogen preparation, the water-gas separation device comprises a device main body and an end plate, a surge bin is fixed in the device main body, and a shunting hole is formed in one side of the surge bin; a guide cylinder is fixed to the top of the buffering bin, a resistance reducing sleeve is connected into the guide cylinder, a balancing weight is arranged in the resistance reducing sleeve, the balancing weight is wrapped with a buffering sleeve, and limiting columns are fixed to the two sides of the bottom of the end plate. Through the arrangement of the surge bin and the flow dividing holes, when high-pressure hydrogen flow or oxygen flow enters the annular groove, the flow path is dispersed through the multiple flow dividing holes, flow concentration of a single channel is reduced, and therefore the local pressure peak value is reduced; part of kinetic energy is converted into heat energy, and pressure energy is effectively consumed; compared with a traditional buffer tank, the buffer tank is simple in structure and low in cost, and is an economical and effective buffer scheme.

The application belongs to the technical field of hydrogen-oxygen atomizing device, and relates to a gas generating device with adjustable hydrogen-oxygen ratio, which comprises a hydrogen-oxygen generating device, an oxygen generating device and a control device, the hydrogen-oxygen generating device is used for generating hydrogen and oxygen with a ratio of 2:1, the oxygen generating device is used for generating oxygen with a concentration of 93%+ / -3%, and the control device is used for controlling the flow generated by the hydrogen-oxygen generating device and the flow of the oxygen generating device, so as to adjust the hydrogen-oxygen ratio of the output. The application controls the flow of each device through a control system, widens the ratio mode of hydrogen-oxygen mixed gas, meets the oxygen flow demand on the basis of meeting the hydrogen flow demand, reduces the manufacturing difficulty in the application occasion requiring large oxygen flow, saves energy, widens the application scene of hydrogen-oxygen mixed gas, and provides a more comprehensive gas supply mode for treating respiratory diseases by using hydrogen.

The invention discloses low-hydroxyl defect-free quartz glass and a preparation method thereof.The preparation method comprises the steps that silicon tetrachloride is subjected to flame hydrolysis in oxyhydrogen flame, and a porous silicon dioxide base material is obtained; carrying out vacuum dehydration heat treatment on the porous silicon dioxide base material, heating to 1400-1500 DEG C, carrying out transparent vitrification treatment, and then carrying out thermal forming and annealing treatment to obtain a quartz glass body; and carrying out heat treatment on the obtained quartz glass body in a hydrogen-containing atmosphere at the air pressure of 0.1-1.0 Mpa and the temperature of 520-680 DEG C for 150-500 hours to obtain the low-hydroxyl defect-free quartz glass. Aiming at the problem of oxygen deficiency of quartz glass prepared by a soot method, the invention develops a hydrogen-loaded heat treatment method, so that the oxygen deficiency of the quartz glass is eliminated, and the hydroxyl content is less than 20 ppm.

The utility model discloses a glass tube melting sealing device for oxyhydrogen flame, which belongs to the technical field of glass tube melting sealing and comprises a rack, a transverse moving mechanism arranged on the rack, a rotary melting sealing mechanism arranged on the transverse moving mechanism, a limiting mechanism arranged on one side of the upper portion of the rack, and a bearing mechanism arranged on one side, far away from the limiting mechanism, of the rack. The glass tube can be uniformly heated in a rotating state, so that 360-degree dead-corner-free heat sealing is realized, after the glass is heated to a proper temperature, the glass is locally melted and closed, the heat sealing process is finished, the heat sealing heating precision and uniformity are improved, the phenomena of deformation, bubbles or cracks of the heat sealing surface of the glass tube are avoided, the operation is simpler and more convenient, and the process is more controllable.

The invention discloses a tin telluride-based thermoelectric material with low lattice thermal conductivity and a preparation method thereof, the tin telluride-based thermoelectric material with low lattice thermal conductivity has a chemical formula of Sn < 0.88 > Sb < 0.04 > Mn < 0.08 > Ge < 0.05 > Te-x% Cu < 2 > Te, and x < = 7. The preparation method comprises the following steps: weighing raw materials Sn, Te, Sb, Mn, Ge and Cu according to stoichiometry; the raw materials are transferred into a quartz tube after being mixed, vacuumized and sealed by oxyhydrogen flame; heating a quartz tube filled with the mixture, carrying out a melting reaction, and quenching in water after the reaction is finished to obtain a SnTe cast ingot; the SnTe cast ingot is ground into powder, the powder is put into a mold to be sintered, and the tin telluride-based thermoelectric material with the low lattice thermal conductivity is obtained. Non-toxic raw materials are adopted, the environmental protection property of the tin telluride-based thermoelectric material is guaranteed, meanwhile, a nano core-shell structure is formed in tin telluride through multi-element regulation and control doping and a proper process, and phonon scattering is greatly enhanced.

The utility model discloses a gas transmission butt joint assembly and an oxyhydrogen machine. The gas transmission butt joint assembly comprises a first mounting seat, a second mounting seat and a gas guide structure, and the first mounting seat is provided with a first cavity; the second mounting seat is arranged on the first mounting seat in a sliding manner and has a first working state and a second working state; in the second working state, the air guide structure can be exposed from the first mounting seat; when the second mounting base is in the second working state and bears the acting force in the first direction, the second mounting base can be switched from the second working state to the first working state, when the external force borne by the second mounting base is removed, the second mounting base can be kept in the first working state, and when the second mounting base bears the acting force in the first direction again, the second mounting base can be kept in the second working state. The second mounting base can be switched from the first working state to the second working state. According to the utility model, the gas output operation of the oxyhydrogen machine is more convenient, the structure is more compact, and the occupied space is smaller.

The utility model relates to hydrogen oxygen mixed gas emission technical field discloses a kind of hydrogen oxygen mixed emission tube and emission system.Hydrogen oxygen mixed emission tube includes: storage pipeline, with multiple cavities for accommodating hydrogen oxygen mixed gas;Emission pipeline, with emission passage;Emission passage one end is communicated with outside, other end is communicated with multiple cavities;Diaphragm assembly, set in storage pipeline, for blocking multiple cavities with emission passage;Wherein, multiple cavities are used to install spark plug respectively, and spark plug makes hydrogen oxygen mixed gas in cavity explode and produce high-pressure gas enough to damage diaphragm assembly.Emission system includes multiple hydrogen oxygen mixed emission tubes.The utility model can solve the technical problems of unable to adjust emission mode and single function in related technology by the above technical scheme.

The invention discloses equipment for manufacturing a basalt ceramic fiber heating wire wrapped with recrystallized silicon carbide. A rectangular tube with a plurality of windows on two sides is vertically mounted below the oxyhydrogen flame heating silicon carbide horn nozzle, and a group of electric organic silicon rubber rollers containing graphene powder and a group of organic silicon rubber rollers containing graphene powder are mounted outside the windows of the rectangular tube respectively. The basalt ceramic fibers rolled out from the plurality of basalt ceramic fibers pass through a gap between the first group of electric organic silicon rubber rollers containing the graphene powder and the electric reciprocating organic silicon rubber rollers containing the graphene powder. And a plurality of basalt ceramic fiber heating wires wrapped with recrystallized silicon carbide, which come out from a gap between the last group of electric organic silicon rubber roller containing graphene powder and the last group of electric reciprocating organic silicon rubber roller containing graphene powder, are wound on the basalt ceramic fiber heating wire electric capstan wrapped with recrystallized silicon carbide.

The high-uniformity quartz glass ingot melting equipment comprises a furnace body, a heat preservation layer and a hearth, the upper end of the hearth is connected with a furnace cover and an oxyhydrogen burner, the hearth is provided with a plurality of smoke outlets extending to the heat preservation layer, the heat preservation layer is provided with an annular flue communicated with the smoke outlets, and the upper end of the annular flue is connected with a chimney and a first fan. A forming heat preservation cavity and a cooling cavity are sequentially arranged below the hearth, a forming channel which extends to the upper end of the forming heat preservation cavity and is provided with a heating ring is arranged on the lower portion of the hearth, the forming heat preservation cavity is provided with a heat preservation smoke opening communicated with the annular flue, and a heating sleeve connected with a second air inlet pipe is embedded in the bottom of the hearth. Gas heated by the heating sleeve is blown to the heating ring and the upper portion of the hearth. According to the invention, unmelted quartz powder and combustion waste gas contained in high-temperature flue gas in the hearth can be discharged, the purity of the quartz melt before forming is ensured, the energy consumption can be reduced, the temperature uniformity of the quartz melt at the upper end of the forming channel can be ensured, and the structural uniformity of a quartz glass ingot during forming is improved.

The invention discloses automatic fusion sealing equipment for a high-purity large-size quartz tube, and aims to solve the problems of high manual dependence, low efficiency, unstable quality and the like of traditional fusion sealing. The equipment comprises a fusion sealing equipment main body, a fire ring, a composite motion mechanism and a supporting mechanism, a circulating water and oxyhydrogen gas flowing cavity is arranged in the fire ring, and 24 groups of rotatable fire nozzles are matched to realize uniform heating; movement and gas parameters are coupled through a PLC control system, and the supporting mechanism can be finely adjusted in multiple directions to guarantee the coaxiality. The fusion sealing method comprises the steps of feeding positioning, parameter setting, multi-stage fusion sealing and detection discharging, the hydrogen-oxygen proportion and duration are matched according to the specification of the quartz tube, and single-tube fusion sealing is shortened to about 5 minutes. The leakage rate of equipment after fusion sealing is smaller than or equal to 1 * 10 <-7 > Pa.m < 3 > / s, no leakage is caused after the equipment is soaked in water for 96 hours, the equipment adapts to the specification of phi 90mm-phi 300mm, and the high-precision mass production requirements of semiconductors and new energy industries are met.

The invention provides equipment and a method for preparing synthetic quartz glass with low hydroxyl concentration and high optical uniformity, and belongs to the technical field of quartz glass synthesis. The equipment comprises a reaction chamber, a lifting traction rod, a raw material burner and a low-temperature gas exhaust. The output tail end of the low-temperature gas exhaust is located in the reaction chamber, and the included angle between the gas output direction of the low-temperature gas exhaust and the axial direction of the lifting traction rod is 0-20 degrees; the axial direction of the lifting traction rod, the gas output direction of the raw material burner and the gas output direction of the low-temperature gas exhaust intersect at one point, and the lowest end of the Soot body is located near the intersection point in the forming process. The method comprises the following steps: after the Soot body is initially formed, continuously blowing inert gas of which the temperature is lower than that of oxyhydrogen flame into the lowest end position of the Soot body step by step. According to the invention, the temperature difference between the edge part and the core part of the Soot body deposition surface in molding is improved through a heat flow coupling effect, so that the density difference between the edge part and the core part is reduced.

The invention relates to a device and a method for producing oxyhydrogen (also known as HHO) in an efficient manner. The invention also relates to the introduction of oxyhydrogen / HHO into an internal combustion engine to allow it to mix with hydrocarbon-based fuels to thereby increase combustion efficiency.

The invention relates to the technical field of fuel cells, in particular to an oxyhydrogen fuel cell cathode closed cycle multi-mode coordinated regulation and control system for a UUV (Unmanned Underwater Vehicle), which comprises a nitrogen supply module, an oxygen supply module, a mixing module, a gas cycle and hydrothermal management module, a detection module and a control module, the control module is used for controlling the galvanic pile to enter a preheating mode when the real-time temperature of the galvanic pile is smaller than a preset temperature threshold value; the control module is used for controlling the galvanic pile to enter a dynamic load response mode when the load change rate is greater than a threshold; the control module is used for controlling the system to enter a water management auxiliary mode when single battery voltage abnormally fluctuates; and the control module is used for controlling the system to enter a safe purification mode when the cathode hydrogen concentration is greater than a hydrogen concentration safety threshold. According to the invention, the load change can be tracked quickly and accurately, the oxygen partial pressure of the electric pile can be regulated in time, and severe fluctuation of system performance is avoided.

The utility model relates to a hydrogen elimination device and a hydrogen fuel cell. The hydrogen elimination device comprises a shell, and a hydrogen elimination module, a gas mixing mechanism and a heat exchange flow channel which are arranged in the shell. The gas mixing mechanism is communicated between a gas inlet port of the shell and a hydrogen elimination inlet of the hydrogen elimination module, and the heat exchange flow channel is communicated between an exhaust port of the shell and a hydrogen elimination outlet of the hydrogen elimination module. And the heat exchange flow channel passes through the outer wall of the gas mixing mechanism and is used for exchanging heat with the outer wall of the gas mixing mechanism. Hydrogen enters the gas mixing mechanism from the gas inlet port and becomes hydrogen-oxygen mixed gas in the gas mixing mechanism, the hydrogen-oxygen mixed gas enters the hydrogen elimination module to eliminate hydrogen, reacted gas discharged from the hydrogen elimination module carries heat and enters the heat exchange flow channel, and the heat exchange flow channel exchanges heat with the outer wall of the gas mixing mechanism. Therefore, the hydrogen-oxygen mixed gas in the gas mixing mechanism is preheated, the hydrogen-oxygen mixed gas carries heat to enter the hydrogen elimination module, a catalyst in the hydrogen elimination module rapidly reaches the reaction temperature, and the overall hydrogen elimination efficiency is improved.

The utility model discloses an oxyhydrogen generating device with a multilayer structure, which relates to the field of oxyhydrogen generating devices and comprises a generating tank, a water conveying pipe is mounted in the generating tank, a cooling pipe, a condensing pipe and a drying pipe are sequentially sleeved on the outer wall of the water conveying pipe, and a gas collecting tank is arranged at the top of the condensing pipe. The top end of the gas collecting tank is connected with three sets of third connecting pipes, and a gas outlet pipe is fixed to the outer wall of the drying pipe. Gas generated by electrolysis flows into the cooling pipe through the first connecting pipe, the cooling pipe cools the generated gas, then the gas flows into the condensation pipe through the second connecting pipe, water in the water conveying pipe absorbs heat in the condensation pipe, water vapor in the vent holes is cooled to form water drops, and the water vapor in the vent holes is cooled to form water vapor. And the cooled gas enters the drying pipe to be dried, and the drying blocks in the drying pipe absorb water molecules contained in the gas, so that the gas discharged from the gas outlet pipe is dry gas.

This invention proposes a special fiber drawing equipment and method for fabricating fiber gratings. The equipment includes a fiber drawing furnace and an ultraviolet exposure system arranged sequentially from high to low. An optical fiber preform is melted into bare fiber in the drawing furnace, and the ultraviolet exposure system inscribes the grating onto the bare fiber. A sensitization system is also provided, positioned between the drawing furnace and the ultraviolet exposure system. The sensitization system includes an oxyhydrogen torch for forming an oxyhydrogen flame, which is directed at the grating inscription area in the bare fiber to enhance its sensitivity. This invention, by adding a sensitization system between the drawing furnace and the grating inscription system, utilizes the combustion of hydrogen and oxygen to form an oxyhydrogen flame to sensitize the freshly melted bare fiber, thereby improving the photosensitivity of the grating inscription area and achieving the fabrication of highly reflective fiber gratings.

The utility model relates to an oxyhydrogen cutting device of a plate continuous casting machine, and belongs to the technical field of metallurgical equipment. According to the technical scheme, an electrolytic bath device (5) comprises a proportioning valve and a hydrogen-oxygen generator, an outlet of the hydrogen-oxygen generator is connected with a cutting device (11) through the proportioning valve, a gas pressurizer (8) is arranged between the electrolytic bath device (5) and the cutting device (11), an exhaust treatment device (12) is arranged above the cutting device (11), and the cutting device (11) is connected with the cutting device (11). The focal length of the cutting device (11) is adjusted through the driving mechanism, and the control system (13) is connected with the proportioning valve, the gas pressurizer (8) and the driving mechanism. According to the utility model, through the proportional adjustment of gas supply and the multi-dimensional focal length adjustment of the cutting nozzle and the adoption of the exhaust treatment device, the operation safety and the working efficiency are improved, the high efficiency and the high precision in the cutting process are ensured, and the emission of harmful smoke dust and noise can be obviously reduced.

A compact portable oxyhydrogen generator has a housing, an end cover fastened on the upper end of the housing for discharging gas, and a bottom cover fastened at the lower end of the housing. A battery module for supplying power, an electrolytic cell module for generating hydrogen / oxygen mixture, a water filtration cell for filtering moisture, and a multi-stage filter baffle for further filtering the gas are sequentially arranged in the housing from bottom to top. A flame retardant core is provided between the filter baffle at the top layer and a gas outlet provided in the end cover. The multi-stage filter baffle is provided according to requirements of a gas filtering index. Water is used as a reaction raw material and an inorganic salt can be used as an electrolyte, such that a normal-pressure hydrogen / oxygen mixture may be to directly generated, and can be produced when needed.

The utility model discloses welding equipment for heating a steel rail based on oxyhydrogen fuel gas. The welding equipment comprises a hydrogen production machine, a distributor, a water cooling / air cooling pipeline, an air compressor, an oxyhydrogen mixing gun and a composite heater. The hydrogen production machine is connected with the hydrogen-oxygen mixing gun through the distributor, the air compressor is arranged at the upstream of the hydrogen-oxygen mixing gun, a water pipeline for circulating water cooling is connected with the hydrogen-oxygen mixing gun, and the composite heater is in a semi-open type and comprises a heater I and a heater II which are matched for use; the welding equipment further comprises a first fire spraying hole area, a second fire spraying hole area, a third fire spraying hole area and a fourth fire spraying hole area which are sequentially arranged on the inner side of the composite heater. The four fire spraying hole areas can heat the rail to be welded in real time in all directions, and the heating efficiency is higher.

The application discloses a novel power increasing system and method for a range-extending electric vehicle. The method comprises the following steps: inputting hydrogen-oxygen mixed gas into annular cylinders, completing the circulation of air intake and compression, work and exhaust, driving the generator set to charge the battery group of the electric vehicle while the synchronous shaft of the annular cylinder rotates, and realizing the range extension and endurance of the battery group; the annular cylinders are grouped in pairs, the first annular cylinder completes the circulation of air intake and compression, and the second annular cylinder completes the circulation of work and exhaust; the high-pressure gas formed by air intake and compression in the first annular cylinder is input into a combustion chamber and ignited by a spark plug, the high-temperature and high-pressure gas generated is input into the second annular cylinder, and exhaust is performed after work. The application can improve the environmental protection performance, the power output structure is simple, and the energy conversion efficiency is improved.