56 results about "Pyrolant" patented technology

The invention discloses a quantitative throwing tool and method for a methane in-situ burning explosion fracturing combustion improver. The throwing tool comprises an inner barrel, a piston B and an outer barrel, the center of the upper end of the inner cylinder is fixedly connected with an air inlet pipeline B, and the bottom is provided with an inner cylinder bottom plate; a spraying hole is formed in the center area of the inner cylinder bottom plate, and a constant pressure plug is installed in the spraying hole. The piston B is assembled in the inner barrel; a plurality of perforations B are formed in the barrel body of the outer barrel, and an outer barrel bottom plate is arranged at the bottom of the outer barrel; the outer cylinder coaxially sleeves the inner cylinder, and the upper end of the outer cylinder is fixedly connected with the upper end of the inner cylinder. The method comprises the steps of installing the bridge plug in the shaft; the putting tool is put down to the position where the reservoir is located through a shaft by using a coiled tubing; a sealed putting section is formed at the position where the putting tool is located through the packer and the bridge plug; and the piston moves downwards until the combustion improver is completely filled into the sealed feeding section. According to the tool and the method, the pre-stored combustion improver can be conveniently and quantitatively put in a specific position.

The invention relates to the field of industrial heating, in particular to a hot air generating device of a low-temperature tempering furnace. The technical problem to be solved is to overcome the defects of heat waste of waste gas and unstable hot air temperature. According to the technical scheme, the device comprises a first shell, one side of the first shell is fixedly connected with a second shell in a communicating mode, one side of the second shell is provided with an air outlet hole, the other side of the first shell is provided with a mounting hole, one end of the mounting hole is fixedly connected with a T-shaped cylinder, one end of the T-shaped cylinder is fixedly connected with a high-speed nozzle, and the outer side of the high-speed nozzle is sleeved with a heat insulation plate; and a spark head is arranged on one side of the high-speed nozzle. The burner has the beneficial effects that the direction of waste gas is guided through the wind shield and the flow guide plate, combustible substances in the waste gas are ignited at the high-speed nozzle through the spiral gas channel of the ventilation ring, the basic temperature of fuel gas and a combustion improver is increased through heat of the waste gas, fuel gas needed for generating high-temperature gas is reduced, and the utilization rate of the fuel gas is increased.

The invention discloses a coal gangue-based solid fuel which comprises pulverized coal, coal gangue particles, a binder, a combustion improver and a sulfur-fixing agent. After the combustion improver prepared by the method disclosed by the invention is added into the solid fuel, the ignition point of the fuel can be obviously reduced, the flammability index of the fuel is improved, and the combustion performance of the solid fuel is greatly improved.

The invention discloses a multi-stage pulse targeted staged fracturing method. The method comprises the following steps: preparing work; constructing a fishbone well; tripping in a bridge plug; a required amount of combustion improver is filled into the throwing bin body on the ground, the fire blast bin body is vacuumized, and then a fire blast fracturing tool is put into the throwing bin body; enabling the combustion improver to quickly enter the combustion and explosion bin body by using high-pressure nitrogen to be mixed with methane to form combustion improver-methane mixed gas, and further completing the in-situ manufacturing process of the combustion and explosion fracturing bomb; the electric control connecting buckle is controlled to act, so that the blasting bin body is separated from the throwing bin body; after the separation and arrangement of the explosion bins of the multi-stage tool are completed, the packer is expanded and set in the target branch well section, and a closed explosion fracturing well section is formed between the set packer and the drillable bridge plug; and the ignition electrode is controlled to conduct ignition operation so as to detonate combustion improver-methane mixed gas in the fire blast fracturing bomb, and the explosion propagation process from outside to inside along the shaft is completed in a sympathetic detonation mode. By means of the method, multi-stage sectional type fire blast fracturing operation of the fractured well section can be achieved.

The invention relates to the technical field of metal material surface modification, in particular to AlCrCuMoNi high-entropy alloy powder with high temperature, wear resistance, corrosion resistance and good heat conduction, a coating and a preparation method thereof.The high-entropy alloy powder with the particle size being 15-45 microns and suitable for thermal spraying is prepared through a mechanical alloying method, and then the high-entropy alloy powder is prepared through an oxygen-kerosene supersonic flame spraying technology; the preparation method comprises the following steps: spraying high-entropy alloy powder on the surface of a key part matrix by taking high-entropy alloy as a matrix, oxygen as a combustion improver, kerosene as a fuel, high-purity nitrogen as a powder feeding carrier gas and air as a cooling medium to prepare an AlCrCuMoNi HEA coating; al, Cr, Cu, Mo and Ni elementary substance powder is subjected to ball milling according to the required molar ratio through a mechanical alloying method, AlCrCuMoNi HEA powder is obtained, the coating is prepared through the hypersonic flame spraying technology, the method is suitable for improving the high-temperature abrasion resistance and hot corrosion resistance of the surfaces of key parts in the industries of energy, metallurgy, chemical engineering and the like, and the service life of boiler pipes is prolonged.

The invention relates to a flame burner used in a solid oxide fuel cell (SOFC) system. Comprising a first pipe fitting and a second pipe fitting, the first pipe fitting is arranged at an opening in the upper end of the second pipe fitting in a sleeving mode, a combustion chamber is arranged in the first pipe fitting, a rotational flow plate connected to the opening in the upper end of the second pipe fitting is arranged in the second pipe fitting, and an oxidizing agent hole communicated with cathode tail gas of a combustion improver and a fuel hole communicated with anode tail gas of a combustible are formed in the rotational flow plate. The oxidant hole and the fuel hole are respectively communicated with the combustion chamber, the oxidant hole comprises a side wall rotational flow hole and a plane groove type rotational flow hole, the rotational flow directions of the side wall rotational flow hole and the plane groove type rotational flow hole are opposite, and an ignition needle extending into the combustion chamber is arranged on the rotational flow plate. Through the side wall rotational flow holes and the plane groove type rotational flow holes, the retention time of fuel in the combustion chamber is prolonged, direct contact between a high-temperature area for combustion and the wall face of the combustion chamber is hindered, the side wall rotational flow holes adopt a large-angle internal rotation mode to avoid fuel dispersion, and the equivalence ratio of a main combustion area is controlled to be about 1 as much as possible through area distribution.

The present invention relates to a side wall metal submerged combustion device for a smelting furnace and a method for using the device. The device is provided with a fuel gun body, a fuel and combustion-supporting agent supply source connection port and an automatic control system. The device is characterized in that: the combustion device is an integrated combustion device, provided with: a fuel gun, a nozzle is provided at the front end, a quick-install sealing plug and a fuel source interface are provided at the rear; an air sleeve is provided at the periphery, an combustion-supporting agent interface is provided on the air sleeve body, a ball valve is provided at the rear end, and a quick-install sealing plug interface for connecting the fuel gun is provided at the rear end of the ball valve; an air sleeve front port is provided at the front end of the air sleeve and is parallel to the nozzle and is passed into the smelting furnace chamber, the air sleeve front port and the nozzle are fixedly arranged on the side wall below the metal liquid level of the smelting furnace, and a cold water jacket or refractory bricks are provided at the periphery. The present invention is suitable for oxidation, reduction and combustion of a smelting furnace. It has a reasonable structural design, stable and reliable operation, safety, high degree of automation, increased metal melting temperature, and accelerated oxidation and reduction speed.

The application discloses a natural gas combustion spray gun for a large glass furnace, which comprises a coaxially arranged outer sleeve and an inner sleeve; a flow guide column is fixed at the front end of the inner sleeve, and an arc-shaped flow guide groove is formed in the circumferential surface of the flow guide column; a blind hole is formed at the front end of the flow guide column, and a third flow guide hole is formed in the flow guide column and is communicated with the arc-shaped flow guide groove and the blind hole; a second flow guide hole and a first flow guide hole are sequentially formed at the front end of the inner sleeve from front to back, and the second flow guide hole and the first flow guide hole are directed to the arc-shaped flow guide groove on the flow guide column; a heat insulation sleeve is sleeved at the front end of the outer sleeve, and a positioning ring is fixed in the inner part of the front end of the outer sleeve; a plurality of turbulence columns are uniformly fixed at the front end of the flow guide column and pass through the positioning holes in the positioning ring. The flow guide column is arranged at the front end of the inner sleeve, and the turbulence column is arranged at the nozzle position, so that the mixing area is enlarged, the atomization effect of the natural gas on the ethylene tar is improved, the fuel and the combustion-supporting agent are fully mixed, the fuel utilization rate is improved, and the heat radiation effect in the furnace is improved.

The invention discloses a low-energy laser combustion improver and a safe ignition method. The combustion improver comprises the following raw materials in percentage by weight: 1-5wt% of phosphorus-containing ligand, 3-8wt% of sulfur-containing ligand, 1-3wt% of metal nickel salt, 1-5wt% of accelerant and the balance of organic solvent. The invention provides a low-energy laser combustion improver and a safe ignition method, the low-energy laser combustion improver can ignite an object to be ignited through low-energy laser at a certain interval at a lower environment temperature, so that the ignition safety of explosives is improved, and the low-energy laser combustion improver can also be used in activities such as performance, magic and celebration; the combustion improver is simple and easy to prepare, free of tedious procedures and harsh conditions, capable of being prepared in an amplified mode, convenient to industrialize, relatively low in price and suitable for popularization.

The invention discloses a method for preparing Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 system scheelite type red fluorescent powder by a combustion method, Sr (NO3) 2, Ba (NO3) 2 and (NH4) 6Mo7O14. 4H2O are used as reaction raw materials, Pr < 3 + > is used as rare earth ion doping, citric acid is used as a combustion improver, and the Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + > fluorescent powder is synthesized by combustion. A combustion method is adopted for synthesis, the advantages of being low in reaction temperature, short in time and small in synthesized sample particle are achieved, and the Sr0. 6Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 red fluorescent powder synthesized through the experiment is high in luminescence performance and can be used as red fluorescent powder for a white light LED. According to the invention, the surfactant PEG-200 is added to improve the morphology of the sample and enhance the luminescence property of the sample, and the trivalent praseodymium ions are doped in the molybdate with the scheelite structure, so that the luminescent material has high emission intensity in a dark red region.

The invention discloses a foam curtain generation and performance characterization device and method and application. The device comprises a foam curtain injection system used for generating a foam curtain, a combustion system used for heating the foam curtain and a motion capture system used for capturing the motion trail of the foam curtain. The foam curtain injection system comprises a foam mixed liquid tank body, a pump body and a foam curtain injector, the pump body is arranged between the foam mixed liquid tank body and the foam curtain injector, and the pump body is connected with the foam curtain injector through a pipeline; the combustion system comprises a combustion gas cylinder, a combustion improver cylinder, a combustion mixer and a combustor, the combustion gas cylinder and the combustion improver cylinder are respectively connected with the input end of the combustion mixer through pipelines, and the combustor is connected with the output end of the combustion mixer. The device can monitor the motion trail of the marking section foam curtain in real time and control the angle of combustion flame, so that the marking section foam curtain receives heat radiation all the time, the actual working condition is simulated more truly, and the actual heat insulation effect is reflected.

An apparatus (1) for the burning of waste sand by an electric stove (3a) that does not require combustion improvers comprises an electric burning device (3) and a first separator (6) as well as a flow diverter (7). The electric fire pyrolyzer (3) guides electric fire flames (3b) of the electric fire stove (3a) through the first airflow (2) to pyrolyze the waste sand (4) so that waste sand sticking substances can be decomposed. The first separator (6) separates waste sand from the first gas stream (2). A flow diverter (7) directs the first gas stream (2) from the first separator (6) to the electric fire pyrolyzer (3).

The present application relates to a kind of incineration device and method for gas under low concentration oxygen content combustion-supporting agent, including strong swirl burner, special combustion chamber;Strong swirl burner is annular structure, for providing the wall-attached rotating mixed jet of swirl intensity not less than 1, from inside to outside respectively for first stage gas lance, first stage air pipe, second stage gas lance, second stage air pipe and shell;Special combustion chamber is cylindrical furnace, for forming the high-temperature backflow flue gas filled in the center area of special combustion chamber, and the special combustion chamber entrance is docked with the outlet of strong swirl burner.Wall-attached rotating mixed jet is mixed and heated by high-temperature backflow flue gas, reaches reaction temperature, flows along the inner wall surface of special combustion chamber and reacts and releases heat, when reaches the outlet of special combustion chamber, a part of backflow is formed closed loop as the pilot light source of strong swirl burner, realizes the stable incineration of gas under low concentration oxygen content combustion-supporting agent, reaches the effect of reducing combustion temperature and reducing thermal NOx.

This invention discloses an electrolytic water hydrogen-oxygen welding and cutting device, relating to the field of flame welding and cutting technology. The device includes a reaction assembly, a movable base, and a support assembly. It further includes: a shell mounted on the support assembly, containing an inner tube for hydrogen delivery; a sleeve on the outer side of the inner tube; a gap between the sleeve and the inner tube forming an oxygen delivery chamber; and a gap between the sleeve and the shell forming a cooling chamber; and a connector fixed to the lower end of the shell, containing an annular cavity communicating with the cooling chamber; and an outlet nozzle installed at the bottom of the connector. Through the coaxially nested inner tube, sleeve, and shell, hydrogen delivery, oxygen delivery, and water mist are isolated, achieving complete physical separation of fuel, combustion aid, and cooling medium during the delivery stage. This fundamentally eliminates the risk of pre-mixing combustible gases within the pipeline, strictly limiting the mixing point to a safe area outside the welding nozzle, significantly improving the safety level during equipment use.

The utility model discloses a pure oxygen burner for flue gas treatment and a flue gas treatment system. The pure oxygen burner comprises a fuel channel, an oxygen channel, an inner smoke channel, an outer smoke channel and an ignition device which are sequentially arranged in a sleeving mode from inside to outside. The fuel channel penetrates through an oxygen outlet of the oxygen channel and extends to a flue gas outlet of the inner flue gas channel; an oxygen outlet of the oxygen channel is formed in the inner flue gas channel; to-be-treated flue gas is supplied to gas inlets of the inner flue gas channel and the outer flue gas channel, and flue gas outlet ports are flush with each other; the ignition device can ignite fuel sprayed out of the fuel channel. The leading-in pipeline of the to-be-treated flue gas is integrated with the combustor, the number of holes in the furnace body is reduced, part of the to-be-treated flue gas and pure oxygen are mixed in advance to serve as a combustion improver, emission of thermal nitrogen oxide is reduced, meanwhile, the temperature at a nozzle is prevented from being too high, and the temperature field in the furnace is more uniform.

The utility model relates to a heat accumulating type combustion system. The heat accumulating type combustion system comprises a heating furnace, a fuel conveying pipeline, a combustion improver conveying pipeline and a flue gas conveying pipeline, the heating furnace is provided with a plurality of nozzles, each nozzle is provided with a heat accumulator, and the heat accumulators are used for storing heat of flue gas sprayed out of the corresponding nozzles; when the temperature of flue gas sprayed out of the corresponding nozzle is lower than the preset temperature after heat storage of the corresponding heat storage body, the flue gas conveying pipeline conveys the flue gas after heat storage to other nozzles, the fuel conveying pipeline conveys fuel to other nozzles, the combustion improver conveying pipeline conveys combustion improver to other nozzles, and the combustion improver conveying pipeline conveys the combustion improver to other nozzles. And other nozzles spray the flue gas after heat storage, the fuel and the combustion improver into the heating furnace. According to the heat accumulating type combustion system, smoke sprayed out of the nozzle of the heating furnace can flow back into the heating furnace through the smoke conveying pipeline after being subjected to heat accumulation through the heat accumulator, the flame temperature in the heating furnace is reduced, energy-saving combustion of the combustion system is achieved under the most economical air-fuel ratio, and energy waste is avoided.

The invention relates to the field of continuous hot galvanizing production, in particular to a method for recycling oxygen-rich waste gas and flue gas, which comprises the following steps: step 1, step 2, step 3, step 4, step 5, step 6 and step 7. According to the device, oxygen-rich byproduct gas can be subjected to recycling, mixing and pressure equalizing treatment, the oxygen content of the recycled oxygen-rich byproduct gas is accurately detected, the total combustion improver flow value is calculated and determined through the flow value, the flue gas circulation flow value and the component detection value of the flue gas circulation flow value, automatic adjustment of the electric proportional valve is achieved, and the combustion efficiency is improved. According to the method, the oxygen-rich byproduct gas is applied to the continuous hot galvanizing annealing furnace, oxygen-rich combustion, energy conservation and efficient waste gas recycling are achieved, and the method has the advantages that the oxygen-rich byproduct gas is applied to the continuous hot galvanizing annealing furnace, so that oxygen-rich combustion is achieved, energy is saved, and waste gas is recycled and reused efficiently; meanwhile, low-temperature preheating of natural gas can be achieved, the fuel utilization rate is increased, the production cost is reduced, and energy saving can be achieved.

According to the tool, an outer guide cylinder is coaxially arranged on the outer side of an inner gas storage cylinder in a sleeving mode, and the upper end of the outer guide cylinder is connected with the upper portion of the inner gas storage cylinder through an annular connecting plate; the central cylinder is coaxially arranged in the inner air storage cylinder, the lower end of the central cylinder sequentially penetrates through the inner air storage cylinder bottom plate and the outer guide cylinder bottom plate, and the upper end of the central cylinder is connected with the plugging funnel; a constant-pressure spray hole is formed in a bottom plate of the inner air cylinder, and a constant-pressure plug is mounted on the bottom plate; a lateral opening is formed in the outer guide cylinder; the method comprises the following steps: respectively filling a demanded quantity of gaseous combustion improver into a plurality of putting tools; setting each stage of packer; a steel ball is put, the center cylinder is blocked, the annular piston is pushed by high-pressure nitrogen to move downwards, and the gaseous combustion improver is pressed into the sealed putting section; the combustion improver feeding operation of each sealed feeding section is performed in sequence from bottom to top. According to the tool and the method, the combustion improver can be quantitatively put in sections according to the space requirements of each section of methane reservoir.

The utility model discloses a dumping type smelter smoke collecting mechanism, which relates to the technical field of smelter smoke collection, and comprises a supporting seat, the inner side of the supporting seat is rotatably connected with a smelter for smelting metal, the top end of the supporting seat is connected with a collecting cover for collecting harmful gas through a fixing rod, and a limiting mechanism arranged on the supporting seat and the collecting cover; the limiting mechanism comprises a transmission unit and a reset unit; the transmission unit is used for releasing understanding limitation between the supporting seat and the collecting cover; the reset unit is used for providing reset elastic force for movement of the transmission unit. By arranging the limiting mechanism, when a combustion improver and metal need to be added into the smelting furnace, dissipated harmful gas can be absorbed through the collecting cover on the supporting seat, connection between the supporting seat and the collecting cover can be quickly released by applying downward pressure to the pressing rod, the interior of the collecting cover can be conveniently cleaned, and a filter screen can be conveniently replaced; and the working efficiency is further improved.

The invention discloses a thickened oil development method for breaking through a fireflooding interlayer based on a combustion improver with stratum adsorbability. Selecting a heavy oil reservoir, identifying and confirming a low-permeability interlayer area, and delimiting a target injection area and an injection well group; injecting a combustion improver composition with stratum adsorbability into the interlayer area, and after adsorption is completed, implementing front air pre-injection to activate and catalyze the oxidation capacity of the combustion improver; an ignition agent is continuously injected through the gas injection well to initiate an in-situ combustion reaction; gas injection is maintained, parameters such as combustion temperature and product components are monitored, and stable propulsion of the combustion front edge is controlled. The combustion improver composition comprises an oxidant, a combustion improver, an inorganic catalyst, a catalyst with stratum adsorbability, an emulsifier / surfactant, a polymer adsorbent, a solvent and a pH regulator. The stratum adsorbability of the combustion improver is improved, the combustion improver is enriched at the adsorption site of the interlayer part, high-temperature and high-pressure reaction is generated after ignition, the interlayer structure is broken through, and heat channel breaking through and stable combustion wave propelling are achieved.

This invention belongs to the field of burner technology, specifically disclosing a burner that sprays colored flames, including a base plate and a storage tank. The storage tank is installed on the right side of the top of the base plate, and multiple sets of feed valves are installed on the surface of the storage tank. The interior of the storage tank has multiple cavities. Flow control valves are installed on the front, back, left, and right sides of the top of the storage tank, and suction pipes are installed inside the flow control valves. This burner that sprays colored flames solves the problem of a single flame color by spraying different colored flames through the multiple cavities inside the storage tank and the feed valves around it. A certain proportion of metal solution and oxygen-enriched gas containing combustion aid is injected into different cavities through the feed valves around the tank. By activating different flow control valves, a certain proportion of metal solution and oxygen-enriched gas is introduced into a mixing tank for storage through a disc, a material pump, and a conveying pipe.

To provide a sterilization system of infectious waste that is easy to spread, a combustion improver, production equipment of the combustion improver, a production method of the combustion improver, and a sterilization system of the infectious waste.SOLUTION: A discharge process management method 360 comprises a container selling history step 360A, a delivery history step 360B, a sterilization process history step 360C, a notification step 360D, an ingot recovery history step 360E, a combustion improver production history step 360F, a carbon dioxide reduction amount calculation step 360G, a carbon dioxide reduction amount association step 360H, a contribution calculation step 360J, a contribution association step 360K, a combustion improver delivery history step 360L and a combustion improver usage history step 360M.SELECTED DRAWING: Figure 13

The application belongs to the technical field of burners, and particularly relates to an energy-saving burner which comprises a burner main body, a fixing frame, an obliquely arranged pipe, a heating reaction pipe, a feeding box, a quantitative feeding mechanism and a discharging mechanism, the outer wall of one side of the burner main body is connected with the fixing frame which is fixedly arranged; the obliquely arranged pipe is fixedly arranged on the fixing frame; the heating reaction pipe is fixedly arranged on the obliquely arranged pipe; the feeding box is fixedly arranged on the obliquely arranged pipe, and the feeding box is internally provided with a combustion-supporting agent; the quantitative feeding mechanism is slidingly arranged on the inner wall of the obliquely arranged pipe, and can realize quantitative feeding of potassium permanganate; and the discharging mechanism is slidingly arranged in the heating reaction pipe. The combustion-supporting agent in the heating reaction pipe can be heated and reacted by the waste heat of the burner when the burner sprays fire, so that oxygen can be generated and delivered into the burner through the oxygen delivery pipeline, thereby effectively solving the technical problems in the prior art, realizing sufficient combustion of fuel, and achieving the effect of energy saving.

The present invention relates to the field of industrial heating, and particularly to a hot air generating device for a low-temperature tempering furnace. The technical problem to be solved is to overcome the disadvantages of waste of heat from exhaust gas and unstable hot air temperature. The technical solution is as follows: It includes a first housing, a second housing is fixedly connected to one side of the first housing in a communicating manner, an air outlet is provided on one side of the second housing, an installation hole is provided on the other side of the first housing, and a T-shaped cylinder is fixedly connected to one end of the installation hole. A high-speed nozzle is fixedly connected to one end of the T-shaped cylinder, a heat insulation plate is sleeved outside the high-speed nozzle, and a spark head is arranged on one side of the high-speed nozzle. The beneficial effect of the present invention is that the direction of the exhaust gas is guided by the wind baffle and the diversion plate, the combustible substances in the exhaust gas are ignited at the high-speed nozzle through the spiral air passage of the ventilation ring, the basic temperature of the fuel gas and the combustion-supporting agent is increased by using the heat of the exhaust gas itself, the fuel gas required to generate high-temperature gas is reduced, and the utilization rate of the fuel gas is improved.

This invention relates to a flame burner for use in an SOFC system. It includes a first pipe and a second pipe, with the first pipe fitted over the upper opening of the second pipe. The first pipe contains a combustion chamber, and the second pipe contains a swirl plate connected to its upper opening. The swirl plate has an oxidizer hole communicating with the cathode exhaust gas of the combustion-supporting agent and a fuel hole communicating with the anode exhaust gas of the combustible material. The oxidizer hole and fuel hole are respectively connected to the combustion chamber. The oxidizer hole includes sidewall swirl holes and planar groove-shaped swirl holes, with opposite swirl directions. An ignition needle extending into the combustion chamber is provided on the swirl plate. This invention increases the residence time of fuel in the combustion chamber through the sidewall swirl holes and planar groove-shaped swirl holes, preventing direct contact between the high-temperature combustion zone and the combustion chamber wall. The sidewall swirl holes employ a large-angle inward swirl to avoid fuel dispersion, and the area distribution controls the equivalence ratio of the main combustion zone to approximately 1.

A burner (1) for generating a flame for a heat generating system, comprising a fuel supply line (3) and at least one combustion-supporting agent intake system, both operatively connected to a combustion head (2) for supplying a fuel flow and a combustion-supporting agent flow, respectively, to said burner (1). The burner (1) comprises a turbogas unit having an auxiliary combustion chamber (6) in which combustion takes place and for generating and downstream conveying a flow of fumes, and a turbine (7) activated by the fumes generated by the auxiliary combustion chamber (6). In particular, the turbine (7) is operatively active to at least partially contribute to the movement of the fuel in said combustion-supporting agent supply system (4).

The invention discloses a combustion explosion fracturing anti-reflection device which is applied to an L-shaped drilling well (200) in a reservoir stratum, the L-shaped drilling well (200) comprises a vertical well section (201) and a horizontal well section (202), the anti-reflection device (100) comprises a first gas injection pump station (110), a second gas injection pump station (110) and a third gas injection pump station (110), the first gas injection pump station (110) is communicated with the L-shaped drilling well (200) through a first gas injection guide pipe (111) and is configured to inject oxygen-methane mixed gas containing combustion improvers into the horizontal well section (202) of the L-shaped drilling well (200); the at least one burning and explosion assembly (120) comprises an impacting mechanism (121) and a charging chamber (122), a mixture of sodium chlorate and aluminum powder is loaded in the charging chamber (122), the impacting mechanism (121) is arranged close to the charging chamber (122), and the impacting mechanism (121) is configured to be used for impacting the charging chamber (122) and generating explosion to generate fracturing in the L-shaped drilling well (200).

The present invention discloses a porous double-layer air-cooled downhole high-temperature ignition tool, which includes an ignition tool housing. An installation edge is provided on the ignition tool housing, and an oxygen delivery pipe is connected in the middle of the installation edge. Electric ignition rods, a combustion promoter delivery pipe, a vaporized water delivery pipe, and a thermocouple installation sleeve are installed on the circumference of the oxygen delivery pipe and penetrate through to the ignition tool housing. An ignition rod sleeve is sleeved on the outer end of the electric ignition rod. A double-layer cooling interlayer is arranged in the inner cavity of the ignition tool housing. The ignition rod sleeve is communicated with the cooling cavity in the inner cavity of the ignition tool housing. Low-temperature air flows out from the gap between the ignition rod sleeve and the electric ignition rod to form a protective gas film around the electric ignition rod. A number of cooling holes are opened on the surface of the ignition tool housing, and low-temperature oxygen sprays out from the cooling holes to form a protective gas film. An air guiding pocket is arranged inside the ignition tool housing to introduce the low-temperature air in the oxygen delivery pipe into the inner cavity to form a cooling gas film on the outer surface of the housing. This ignition tool reduces the working temperature and can work reliably at 1800 °C.

The present invention relates to the technical field of explosion-induced cracking, and in particular to a method for predicting the maximum explosion pressure of a gas-liquid-solid multiphase fuel; comprising the following steps: Step 1: According to the chemical reaction principle and the basis of combustion, the combustion heat after the free gas-combustion-aid system is completely reacted is analyzed to determine the maximum heat release of the free gas-combustion-aid system; Step 2: According to the heat energy conversion relationship, the maximum combustion temperature that the system can reach after the free gas-combustion-aid system releases the combustion heat; Step 3: According to the gas state equation, the maximum degree to which the system gas pressure can expand in the process of the free gas-combustion-aid system reaching the maximum combustion temperature is determined. The present invention can make a rapid prediction of the maximum explosion pressure of a multi-component, multi-phase, and multi-variable fuel system; based on the basic system of combustion thermodynamics, the present invention realizes the prediction of the maximum explosion pressure of a complex fuel system, and can supplement the maximum explosion pressure data of most multi-phase or single-phase fuel systems.

To appropriately quantify CO2 fixed in combustion ash.SOLUTION: A CO2 quantification apparatus for combustion ash supplies a combustion aid to combustion ash 2 housed in a sample holder 3, maintains the combustion ash 2 at a first predetermined temperature for a first predetermined time and starts replacement of the atmosphere inside the sample holder 3 to N2 gas, heats the combustion ash 2 to a second predetermined temperature after the predetermined replacement time for stabilization to temperature rise has passed, gasifies CO2 gas fixed in the combustion ash 2 inside the sample holder 3 which has been replaced with N2 gas during the process of heating to the second predetermined temperature, and measures CO2 concentration by transporting the gasified CO2 by N2 gas to quantification means 8.SELECTED DRAWING: Figure 1