39 results about "Thermal ignition" patented technology

The invention discloses a rotary water-cooled spray-burning type biomass particle burner, comprising a burning cylinder arranged horizontally and an air chamber which surrounds the periphery of the burning cylinder and is used for covering the air outlet of a blower; the external wall of the air chamber is provided with a flange for connecting a hearth; the internal side wall of the burning cylinder is fixedly provided with a spiral fin; the side wall of the burning cylinder is provided with an air hole for communicating the inside of the burning cylinder with the air chamber; the feeding inlet of the burning cylinder is provided with an electro-thermal ignition device and a axial directional air inlet for communicating the inside of the burning cylinder with the air chamber; one end of the feeding inlet of the burning cylinder is concentrically and fixedly sleeved with the discharging end of a material pipe; an auger in the material pipe is fixedly connected with the burning cylinder through a connecting piece; a concentric locating piece is connected between the air chamber and the burning cylinder; and a speed regulating motor is used for driving the auger and the burning cylinder to rotate. The burner is applicable to burning straw pellets; bonding slag obtained after burning can be automatically cleaned out of the burning cylinder; and the spray-burning port of the burning cylinder is provided with a water jacket, so that the slag-bonding can be prevented or lightened.

The invention belongs to the field of combustion equipment and provides a series preheating method for combustion air and coal gas for a sintering ignition furnace. The series preheating method comprises the following steps: connecting a combustion air heat exchanger with a coal gas heat exchanger in series and combusting coal gas as a fuel in a hearth of a preheating furnace to generate flue gas; firstly, preheating the combustion air for the ignition furnace by using high-temperature flue gas, then preheating the coal gas for the ignition furnace by using low-temperature flue gas to ensure that the combustion air for the ignition furnace is preheated to 200-350 DEG C, and the coal gas for the ignition furnace is preheated to 150-300 DEG C, and then feeding into the sintering ignition furnace, performing heat convection on the combustion air for the ignition furnace and the high-temperature flue gas; performing heat convection on the coal gas for the ignition furnace and the low-temperature flue gas. The series preheating method disclosed by the invention can be applicable to the sintering ignition furnace which takes low-heating-value coal gas as a fuel, an ignition effect is improved, and the sintering ore quality is ensured. As the low-heating-value coal gas is used as the fuel, the energy consumption is reduced. Double-stroke tubular heat exchangers are used for heat exchange, so that the heat exchangers and the heat exchange areas are reasonably configured, the heat exchange effect is good, the heat exchange coefficient can be up to 20kcal / m2.h.DEG C, and the service life of the heat exchanger is prolonged.

In order to provide an ignition control device 30 which can efficiently control timing of thermal ignition of gaseous mixture in a combustion region 10, the peak estimation part 32, the ignition timing determination part 33, the control timing determination part 34, and the plasma control part 35 control timing of thermal ignition of the gaseous mixture in the combustion region 10 by controlling the pulse generator 36, the electromagnetic wave oscillator 37, the mixer circuit 38, and the spark plug 15 so as to increase the amount of OH radicals in the combustion region 10 during a low-temperature oxidation preparation period that occurs prior to a peak of a heat release rate before the thermal ignition of the gaseous mixture.

The invention provides a preheating ignition method and device for an electric melting furnace. The preheating ignition method and device are used for producing rock wool by using red mud. A large-power nickel-chromium resistance wire is additionally introduced to a point discharge point of a three-phase graphite electrode for preheating and serving as an ignition device to dry the interior of a novel electric melting furnace, preheat furnace materials and realize stable transition after electric arc ignition through the three-phase electrode. The electric melting furnace is high in electric arc ignition speed, steady one-time arc ignition can be achieved, the three-phase current is balanced, and automatic or manual control can be realized. The voltage and the current do not fluctuate severely. Unstable electric arc burning does not exist. Short circuit and arc breaking are avoided. The preheating ignition method and device have no impact on a power grid and are free of harmonic pollution in the implementation process.

A thermal ignition method for fire-flooded oil-flooded oil-flooded oil wells in an oil field, using a movable skid-mounted gas-steam generator set, and using high-temperature, high-pressure combustion technology to burn diesel to produce nitrogen, carbon dioxide, and water Steam mixed gas and a large amount of heat energy; when the combustion temperature in the gas-steam generator reaches 1800°C, the mixed gas is mixed with water to cool down to 300-400°C, the pressure is less than 25MPa, and injected into the oil layer through the wellhead device and injection pipe string of the oil well; Inject 3-10×104Nm3, 300-400°C mixed gas to preheat the oil layer, and then continuously inject air into the well to oxidize crude oil and air in the oil layer, release heat, reach the spontaneous ignition point, and carry out combustion to realize fire oil layer The purpose of oil displacement. The method solves the problems in the prior art that the heating temperature is too high and the heater is easily burnt out; the chemical method has a low ignition success rate. The invention can be widely used for ignition of oil wells in fire flooding and recovery oil layers in oil fields.

The invention discloses an environmentally friendly garbage incineration device, which includes a feed incineration module and a heat exchange steam waste gas treatment module. The feed incineration module includes a feed incineration bin, and the lower end of the feed incineration bin is symmetrically arranged with supporting columns. An incineration installation frame is installed in the middle of the lower end of the feed incineration bin, and an incineration tray is installed on the upper end of the incineration installation frame. The left end of the feed incineration bin at the lower end of the incineration installation frame is equipped with a blanking gate through an electric control shaft. The lower end of the incineration tray With the horizontal penetration of the blanking gate, a limited-diameter blanking sieve plate is installed. An electric auxiliary hot wire is installed horizontally in the incineration tray above the limited-diameter blanking sieve plate. The feed gate has the advantages of compact structure, novel design, controllable incineration process, high energy utilization rate, good safety, economy and environmental protection.

The invention belongs to the field of gas turbine ignition systems, and specifically designs a retractable ignition nozzle. Including nozzle assembly, front flange, rear flange, cylinder, spring, limit washer, step seal, sealing ring and sealing sleeve. The retractable ignition electric nozzle of the present invention can provide ignition when the gas turbine is unloaded, and can be supplied with pressure by an air pump under high pressure and high temperature conditions, and the electric nozzle parts can be inserted into the combustion chamber to ignite again. It can fundamentally solve the problem that the electric nozzle parts are in a high-voltage and high-temperature working environment for a long time, thereby improving the reliability of the ignition electric nozzle.

The invention relates to a boiler ignition method, in particular to a thermal material ignition method of a coal-fired fluidized bed boiler. The fluidized bed hot material ignition mode of the present invention is realized by the following technical solutions. The hot material ignition of the present invention is to take out the inert hot bed material that is nearly burned out in the running boiler, put it into the pre-start fluidized bed boiler, and use it as the ignition source. The combustion is carried out from point to surface until the whole bed is stably combusted. The process of the method for igniting the hot material of the circulating fluidized boiler of the present invention is as follows: laying the base material→taking and feeding the heat material→air distribution, coal feeding→fluidized combustion→air distribution, coal feeding→extended combustion→full bed stable combustion. The advantages of the invention are: the ignition cost of the invention is greatly reduced; the ignition and combustion process is from point to surface, the ignition is easy and the combustion is stable; the operation is simple, convenient and intuitive; the controllability is strong; the safety and reliability are high, and the ignition success rate is high; Transformation promotion. The invention is suitable for various coal-fired fluidized bed boilers.

The invention discloses an oil control device and method for an extra-high-voltage alternating-current transformer entity fire test. The oil control device comprises a data acquisition and central control system, an oil module for an oil storage tank test, an oil module for a body transformer test, an oil module for an adjustment and compensation transformer test, an oil module for an oil collection pit test and an oil module for an overflow oil storage tank test. The oil storage tank test oil module comprises an oil storage tank and an oil transportation mechanism. The oil outlet end of the oil transportation mechanism is provided with a body variable oil transportation end, an adjusting and supplementing variable oil transportation end, an oil collection pit oil transportation end and an overflow oil storage tank oil transportation end. The method comprises the steps of self-inspection, oil injection, cyclic heating, ignition, overflow fire formation, fire extinguishment, oil discharge and test termination. The device has the advantages that oil for testing can be managed and controlled in the whole process, the functions of oil injection and heating before testing, overflow in testing, oil discharge after testing and the like are achieved, and effective development of an extra-high-voltage alternating-current transformer entity fire test is guaranteed.

The invention discloses an indirect ignition preheating system. The interior of the gas supply main pipe is used to transport combustible gas, and the flame injectors for spraying gas are arranged at intervals on the gas supply main pipe. After the flame injector is ignited, the flame sprayed is used to The corresponding structure is preheated; the ignition auxiliary pipe is made of a conductive pipe with a diameter smaller than the main gas supply pipe, which can transmit electric sparks and is used to transport combustible gas inside; the ignition section of the ignition auxiliary pipe is arranged side by side with the flame injector, and The corresponding flame injector on the combustion section is provided with an ignition injection hole for injecting gas outward; the igniter is close to the secondary ignition pipe and can generate an electric spark, and the gas ejected from the secondary ignition pipe is ignited by the electric spark, and passed through an igniter All the injection holes on all the ignition sub-pipes are ignited, and the flame ejected from the injection holes further ignites the flamethrower, thereby indirectly igniting the flamethrower, so that multiple flamethrowers are ignited synchronously, and the ignition efficiency is improved.

The invention relates to a method for detecting glow ignition of a fuel-air mixture in a combustion chamber of an internal combustion engine (12) having at least a first and a further cylinder, which are connected by a crankshaft, according to which method partial segment times of the first cylinder are measured. The method is characterized in that partial segment times of the at least one further cylinder are measured and a reference characteristic for the glow ignition is formed by a comparison of partial segment times of the first cylinder with partial segment times of the at least one further cylinder and subsequently a signal is generated for the detection of the glow ignition on the basis of the comparison.

The invention provides a test system for the whole process of charge ignition and combustion reaction growth of heat-stimulated ammunition, which simultaneously monitors the temperature of the projectile body, charge temperature, internal pressure of the projectile body and expansion rate from the stages of preheating, ignition and combustion , to realize the simultaneous measurement of the temperature change, ignition response, internal pressure change history and shell expansion rate of the constrained projectile charge under thermal stimulation, and has good measurement accuracy, to solve the problem of charge response under thermal stimulation, combustion after ignition The research on the growth mechanism and the evaluation of the response intensity lack the problem of the whole process of multi-parameter complete and systematic quantitative data, which can promote the progress of the insensitive ammunition base and have good social and economic benefits.

The invention discloses an improved thermal ignition method of a combustion surface of a sulfur recovery device. The improved thermal ignition method comprises the following steps of: (1) stopping to blow; (2) replacing the system; (3) inspecting a hearth: inspecting whether the temperature in the hearth is above 800 DEG C after the system is replaced, if so, carrying out the following step, and if not, igniting according to the original ignition process; (4) carrying out hot start at temperature more than 800 DEG C: switching on a combustion air interlocking valve, and allowing to switch on an acidic gas interlocking valve; and (5) igniting main combustion acidic gas: switching on the combustion air interlocking valve, feeding combustion air into the combustion furnace, then switching on the acidic gas interlocking valve, an acidic gas control valve and an acidic gas furnace feeding ball valve, and feeding the acidic gas into the furnace, igniting, and finally canceling the hot start procedure under temperature more than 800 DEG C. By adopting the improved heating ignition method, the ignition efficiency can be improved, the torching of the acidic gas can be reduced, and the environmental pollution can be reduced.

The invention discloses a thermal-ignition high-energy gas pulse fracturing device. The thermal-ignition high-energy gas pulse fracturing device is formed by connecting an oil transmission or cable ignition joint component, a fire transmission joint component, one or more airtight thermal ignition device components, one or more fracturing main charge components, one or more series-connected joint components and a gun breech in series, wherein the airtight thermal ignition device components are ignited by using ignition tubes; the ignition tubes ignite high-heat micro-air gunpowder or airless high-heat explosives in the airtight thermal ignition devices; the airtight thermal ignition devices are sealed systems and keep a complete structure before and after ignition; main charges are ignited by heat transmitted from the airtight thermal ignition devices; and the main charges combust and quickly generate a great amount of fuel gas. A plurality of devices are connected in series by using ignition joints, the number of the devices connected in series is not limited, and the instant or delayed ignition tubes are filled in the ignition joints, so that the combustion transmission of multi-level devices is realized. The thermal-ignition high-energy gas pulse fracturing device solves the problems that a deflagration state is difficult to control, pressure in mineshafts is superposed and sleeves are damaged, and a great amount of debris pollutant and blockage exist after deflagration in the prior art.