5results about How to "Fire stable" patented technology

The utility model relates to a split type outdoor furnace valve body which comprises a valve body, an adjusting device and an igniter, a gas inlet channel, a pressure reduction cavity, an adjusting cavity, a first exhaust channel and a second exhaust channel are arranged in the valve body, and a pressure reduction adjusting rod used for reducing gas pressure is arranged in the pressure reduction cavity. The valve body is provided with at least two gas cylinder connecting ports which are communicated with each other, an inlet of the gas inlet channel is communicated with the gas cylinder connecting ports, an outlet of the gas inlet channel is communicated with an inlet of the pressure reducing cavity, and an outlet of the pressure reducing cavity is communicated with an inlet of the adjusting cavity; the valve body is provided with at least two gas cylinder connection ports which are communicated with each other, so that the gas cylinder and the valve body are in split type and flexible connection, the risks of interface looseness and gas leakage caused by collision or toppling when the gas cylinder and the valve body are in rigid butt joint are avoided, and the use safety is greatly improved.

The application discloses a supercritical hydrothermal combustion type downhole multi-element heat fluid generating method and device; a first-stage combustion zone, a second-stage combustion zone, a third-stage reaction zone, a fourth-stage reaction zone and a fifth-stage mixing zone are arranged, a hot surface forced ignition mode is adopted, cold fuel injection stable ignition in a starting stage is realized, and cold fuel ignition requirements of a downhole device are met; large-flow material is axially graded, upper combustion / reaction provides heat for lower reaction, stable supercritical hydrothermal combustion and rapid oxidation of material at each stage are ensured in the downhole device with limited radial space, and large-flow of the downhole multi-element heat fluid generating device is realized; a hydraulic turbine is installed at the bottom of the multi-element heat fluid generating device, pressure potential energy of generated supercritical fluid is effectively utilized, and parameter self-adjustment of the multi-element heat fluid is realized; and the application can provide a feasible scheme and technical guidance for efficient and clean heavy oil thermal recovery technology.

The invention discloses an energy-saving charcoal fire barbecue oven with a multi-section temperature control function. Comprising a barbecue oven; the barbecue oven is composed of an oven body and a smoke extraction mechanism, the bottom end of the oven body is installed at the bottom end of the support, a containing plate is installed at the position, located at the bottom end of the oven body, of the upper end of the support, an air inlet is formed in the front end of the oven body, an air inlet adjusting mechanism is installed at the position, corresponding to the air inlet, of the upper side of the oven body, and a collecting mechanism is slidably installed below the rear end of the oven body. A grating is installed in the middle of the interior of the oven body, a plurality of carbon boxes are arranged side by side at the upper end of the grating in the oven body, and barbecue grids are arranged at the upper end of the oven body corresponding to the upper ends of the carbon boxes. According to the multi-carbon-box design, charcoal fire segmented control is achieved, the carbon boxes can be flexibly started according to the number of food materials and barbecue requirements, charcoal fire waste is reduced, and the energy-saving effect is achieved; the air inlet adjusting mechanism accurately controls air, so that sufficient combustion of charcoal fire and stable fire behavior are guaranteed; the smoke extraction mechanism is high in smoke extraction efficiency, and the barbecue environment is improved; the collecting mechanism is convenient to clean, and use experience is improved.

This invention discloses a co-firing biomass gas burner and method, belonging to the technical field of combustion equipment. The burner includes a central duct, an inner secondary duct, and an outer secondary duct, coaxially arranged from the inside out. A pulverized coal concentrator is installed inside the central duct, and its outlet end has a slitted blunt body structure with a central through-hole and an axial slit, used to form a graded pulverized coal gas flow. The biomass gas pipeline is equipped with a mechanical tar reduction structure based on temperature detection and flow rate regulation. Through the cooperation of the pulverized coal concentrator, the slitted blunt body, the secondary air swirl blades, and the guide plate, a series of primary and secondary recirculation zones are formed within the burner, achieving zoned mixing and graded combustion of pulverized coal and biomass gas. This invention solves the technical problems of incomplete co-firing, tar blockage, and low-NOx combustion in existing technologies, improving combustion efficiency, stable combustion performance, and reducing pollutant emissions.

The application provides a low-nitrogen burner compatible with blast furnace gas and natural gas, and belongs to the technical field of low-nitrogen combustion of industrial kiln and furnace, and comprises a burner brick, a heat storage component and a natural gas lance; the burner brick is provided with a gas injection port, an air injection port and a natural gas injection port; the gas injection port and the air injection port are arranged at intervals along a first direction; the air injection port and the natural gas injection port are arranged at intervals along a second direction perpendicular to the first direction; the heat storage component is provided with a channel for the combustion-supporting air and the blast furnace gas to flow through, and is used for absorbing the heat of the kiln and furnace to heat the gas; the natural gas lance is communicated with the natural gas injection port. During combustion, the combustion-supporting air, the blast furnace gas and the natural gas are mixed and mixed at a position far away from the burner brick and entrain the kiln flue gas, so that the reaction intensity is reduced. The low-nitrogen burner provided by the application realizes delayed mixing and flue gas entrainment by using heat storage preheating and jet space separation, reduces the emission of thermal NOx, is compatible with blast furnace gas and natural gas, and is stable, efficient and reliable in combustion.