67results about How to "Continuous and stable combustion" patented technology

The invention discloses an outer fire cover of a burner. The outer fire cover comprises a cylindrical fire cover body. A plurality of main fire holes are formed in the fire cover body at intervals in the circumferential direction. One ends of the multiple main fire holes are communicated with a gas mixing cavity. Two annular flame stabilizing grooves are formed above and below the main fire holes in the outer fire cover body in the circumferential direction of the outer fire cover body. One side of each flame stabilizing groove is formed in the vertical surface of the outer side of the fire cover body so that a circle of stable flames can be formed, and the other side of each flame stabilizing groove is communicated with the gas mixing cavity. A fire transferring groove is formed in the upper surface of the outer fire cover body. One end of the fire transferring groove is divided above the upper flame stabilizing groove and the main fire holes so that the upper flame stabilizing groove and the gas mixing cavity can be communicated. Main flames of the outer fire cover are controlled by flame stabilizing flames in the upper flame stabilizing groove and flame stabilizing flames in the lower flame stabilizing groove at the same time so that the optimal state can be achieved; in addition, the main flames can be pulled by the flame stabilizing flames sufficiently during combustion, continuous and stable combustion of the main flames is achieved, the stability and reliability of fire transferring are improved, and the heat efficiency is improved.

A fluid mixing device (1) includes a chamber (3) and a bluff body (4) defining one end of the chamber (3). A first fluid inlet (5) is located toward an opposite end of the chamber (3) from the bluff body (4) and arranged to direct fluid toward the bluff body (4). A region substantially surrounding the bluff body (4) has a flow divider (8) defining second fluid inlet(s) (11) to the chamber (3) and mixed fluid outlets (12) from the chamber (3). A fluid flow from the first fluid inlet (5) and/or from the second fluid inlet (11) establishes a recirculating vortex system (14) within the chamber and results in a mixture of fluids from the first fluid inlet (5) and the second fluid inlet(s) (11) being directed through the mixed fluid outlets (12).

The invention discloses a fire cover, a combustor and a gas stove. The fire cover comprises an inner fire cover and an outer ring fire cover, wherein an inner ring gas cavity and a middle ring gas cavity are formed in the inner fire cover; the inner fire cover is provided with a central cavity with an upward opening, the inner ring gas cavity is located at the periphery of the central cavity, inner ring fire holes communicating with the inner ring gas cavity are formed in the inner circumferential wall of the center cavity, and middle ring fire holes communicating with the middle ring gas cavity are further formed in the inner fire cover. The fire cover can meet the requirement that the combustor has a wide firepower adjusting range, and meanwhile continuous and stable combustion of quitesmall fire of an inner ring can be realized.

Disclosed is a combustion device (100) for solid fuels. An air inlet side (101) is formed above a furnace grate (14) in a furnace (10) and on one side of a fuel stocking layer (1) of the combustion device (100), a combustion side (102) is formed in the furnace (10) on the other side opposite to the fuel stocking layer (1); a shuffle mechanism (6) is arranged in the fuel stocking layer (1) above the furnace grate (14) for receiving the solid fuels, and the fuels in a combustion state can be shuffled by controlling the movement of the shuffle mechanism (6), which is beneficial for discharging ash.

The invention relates to a boiler with a thermal power flexibility regulating function and a regulating method thereof, in particular to the field of opposed firing boilers. The boiler is characterized in that upper burners are burners located on the first layer and the second layer from the top of the boiler; in the upper burners, the front wall and the back wall which are located on the same layer are both provided with the burners, and the burners located on the uppermost layer are set to be peak regulating burners; lower burners are burners located on the first layer from the bottom of the boiler; in the lower burners, any burners on the front wall and/or the back wall are peak regulating burners; the peak regulating burners are internal burning type burners, coal powder can be ignited in the peak regulating burners, and stable burning can be achieved; and the other burners are ordinary burners which are internal burning type burners or external burning type burners. The boiler with the thermal power flexibility regulating function has the beneficial effects that the thermal power operation flexibility and the fuel flexibility of the boiler can be improved, the deep peak regulating capacity of the boiler is remarkably improved, the rapid climbing capacity is achieved, and the boiler can be rapidly started or stopped.

A solid fuel combustion method and combustion device (100). The combustion device (100) comprises a furnace (10). The side of a fuel stack layer (1) close to a combustion cavity (3) forms a combustion side (102), and the other side opposite the combustion side (102) forms an air inlet side (101). The air inlet side (101) is provided with a side wall (6) that provides air only to the upper portion of the fuel stack layer (1).

The invention belongs to the technical field of a gas calorific value instrument, and particularly relates to a burner for the gas calorific value instrument, which comprises a gas inlet, a gas pipe, a high-pressure ignition electrode, the burner, an air pipe body and an air inlet, wherein the gas inlet is connected with a burner base provided with a gas channel; the gas pipe, the high-pressure ignition electrode and the bottom end of the air pipe body are connected with the burner base; the high-pressure ignition electrode and the gas pipe are arranged in the air pipe boy; the gas inlet is communicated with the gas pipe by the gas channel; a nozzle head is communicated with the gas pipe; a circular air mixing board is provided with a thread through hole, symmetrical through holes, a group of circular combustion-supporting air through holes and a group of long-strip combustion-supporting air through holes; and the burner consists of the circular air mixing board, the nozzle head and an injection pipe. The burner for the gas calorific value instrument is simple in structure, capable of guaranteeing the combustible gas to be rapidly mixed and gas with low calorific value to be easily ignited, and safe and stable in the combustion process.

The invention discloses a low-pollution radial two-stage rotational flow spray nozzle of a combustion chamber. The radial two-stage rotational flow spray nozzle comprises a central fuel channel, a peripheral fuel channel and an annular air channel which are coaxially arranged in the radial direction, and the annular air channel is separated into a central air channel body and a peripheral air channel body by a splitter plate; the central air channel body and the peripheral air channel body are internally provided with a central rotational flow device and a peripheral rotational flow device respectively; and an outlet of the central fuel channel is provided with a premixing cavity. By means of the spray nozzle structure, combustion stability and good discharging performance are guaranteed, gas or liquid fuel, such as natural gas which is cleaner, can be utilized, and the radial two-stage rotational flow spray nozzle has the advantage that the work state is easy to adjust.

An explosive motor with disrotatory rotor is composed of pressurizer, burner, expander and driving device. It is featured as setting a pair of disrotatory rotor in each of pressurizer and expander, making section of columnar rotor be form of three petals distributed uniformly in 360 degree, setting petal top curvature radius to be less than that of expander and pressurizer, setting pressurizer air inlet to be greater than air outlet with pressure buffer device and making expander air exhaust volume be greater than its air suction volume.

The invention provides a synchronous inner-meshing double-rotor structure as well as a rotor compressor and a rotor engine based on the synchronous inner-meshing double-rotor structure. The synchronous inner-meshing double-rotor structure is characterized in that two rotors each are provided with TC units composed of C-shaped plates and T-shaped plates, the TC units of the two rotors are the samein number, the TC units of the two rotors are arranged at intervals and are connected in a front-back mode to form a TC unit encircling group, and core plates of the T-shaped plates of each rotor arelocated in the C-shaped plates of the other rotor in front and are meshed with the C-shaped plates. In the synchronous rotation process of the two rotors, in the case of each pair of the C-shaped plate and the T-shaped plate which are meshed with each other, gas is sucked from one side of the inner side and the outer side of the TC unit encircling group, the sucked gas is compressed in closed cavities formed between the C-shaped plates and the T-shaped plates, and the compressed gas is discharged to the other side of the inner side and the outer side of the TC unit encircling group. In the case of the rotor compressor and the rotor engine based on the synchronous inner-meshing double-rotor structure have the advantages of being high in functional conversion efficiency, good in high-speed stability and high in power.

The invention discloses an inner ring fire cover of a combustor. The inner ring fire cover of the combustor comprises a cylindrical fire cover body; a through hole is formed in the middle part of the fire cover body to form an air mixing chamber; the lower end surface of the air mixing chamber communicates with an air supply slot in a furnace head seat; a plurality of main fire channels are circumferentially formed at intervals in the fire cover body; one end of each main fire channel communicates with the air mixing chamber, and while the other end of each main fire channel is opened in the vertical surface of the outer side of the fire cover body to form at least one circle of main flame holes which are axially formed at intervals in the fire cover body; a circle of annular flame stabilizing channel is circumferentially formed in the fire cover body; one side of each flame stabilizing channel is opened in the vertical surface of the outer side of the fire cover body to form a circle of flame stabilizing rings, and while the other side of each flame stabilizing channel communicates with the air mixing chamber. The inner ring fire cover of the combustor has the advantages that the main flame of the inner ring fire cover is controlled by the flame stabilizing flame in the flame stabilizing rings to achieve the optimal state, so that the continuous and stable combustion can be achieved, the heat efficiency and the ignition success rate can be increased, and the effect of soft fire without extinguishing can be achieved.

The invention discloses a multi-stage deslagging furnace. The multi-stage deslagging furnace comprises a furnace body with a cavity. The upper portion of one side of the furnace body is provided witha feed port, and the lower portion of the other side of the furnace body is provided with a slag outlet. The furnace body is at least internally provided with a first-stage inclined fire grate close to the feed port and a second-stage horizontal fire grate connected with the bottom of the first-stage inclined fire grate. A slag discharge box is further arranged on the slag discharge face of the bottom of the furnace body. A first-stage step and a slag discharge box step are arranged between the bottom of the first-stage inclined fire grate and the second-stage horizontal fire grate and betweenthe second-stage horizontal fire grate and the slag discharge box correspondingly. The multi-stage deslagging furnace further comprises a first-stage slag push rod set and a slag discharge box connecting rod used for pushing the slag discharge box out of the furnace body. The first-stage slag push rod set and the slag discharge box connecting rod can move simultaneously. According to the multi-stage deslagging furnace provided by the invention, the multi-stage fire grates are arranged in the furnace body so that granular fuel can move on the different fire grates, the granular fuel with the high ash content can be burned continuously and stably, and furnace slag can be automatically discharged from the furnace body.

The invention discloses a bundling direct-burning type straw boiler, and relates to an improvement of a boiler structure. By means of the bundling direct-burning type straw boiler, straw is directly bundled through special equipment in the field and conveyed to a boiler room, and then the straw can be directly burnt, and the burning cost is reduced. The bundling direct-burning type straw boiler comprises a boiler body with a primary air tube and a secondary air tube, a fuel inlet is formed in the front end of the boiler body, a conveying belt type fire grate is arranged in the boiler body, and the front end of the fire grate extends out from the fuel inlet and is arranged outside the boiler body; and a front arch and a rear arch are arranged at the positions, corresponding to the fire grate, in the boiler body, and an outlet of the secondary air tube of the boiler body is arranged in the front arch and the rear arch. The bundling direct-burning type straw boiler is structurally characterized in that an inlet of the secondary air tube of the boiler body is formed in the back end of the boiler body, and the secondary air tube of the boiler body is arranged in a boiler wall passing through a hearth; and an included angle formed between the front arch and the horizontal plane is larger than or equal to 55 degrees and smaller than or equal to 70 degrees.

The invention relates to a combustion system with a coal water slurry fired boiler. The combustion system comprises a coal water slurry storage tank, a stirrer, a slurry supply pump, a filter, a combustor and the boiler which are sequentially connected with one another, wherein the combustor is respectively provided with an air-blast system and an ignition oil way which are used for atomizing coal water slurry, the air-blast system comprises an air storage tank and an air compressor acting on the air storage tank, the air storage tank is connected with the combustor, and the ignition oil way comprises a daily oil tank and an ignition oil tank which are sequentially connected with the combustor. The combustion system totally adopts flow conveying and atomization of pipelines, can implement automatic ignition of oil in a short time, is simple and convenient to operate and high in safety, and requires labor intensity which is much less than that required by a coal-fired boiler.

The invention discloses a small-flame low-strength double-layer burning device for biomass forming fuel and a burning method. The small-flame low-strength double-layer burning device structurally comprises six parts of a double-layer burner, a feeding device, an ash collecting device, a smoke discharging device, a pot body and a furnace body, and the furnace body is arranged on the lower side of the pot body; the furnace body is internally provided with the double-layer burner and the ash collecting device, the ash collecting device is provided with a furnace door, the side face of the furnacebody is provided with the feeding device, and the upper portion of the feeding device is provided with the smoke discharging device. The small-flame low-strength double-layer burning device belongs to a cooking pancake furnace, the burning method can form a small-flame, low-strength, continuous, stable and efficient burning state, and the demand of the low-temperature heating surface of the burning device is met.

The invention belongs to the field of fine chemicals and particularly relates to antiviral antibacterial incense and a preparation method thereof. Decoction is prepared first via water extraction; active medicinal effective ingredients are stored and protected via the porous inorganic material bentonite having good water-absorbing capacity, so that chances for the effective ingredients to be oxidized and inactive during high-temperature combustion are greatly slimmed; the antiviral antibacterial incense is prepared through the compatibility with wood flour, a binder and other auxiliary materials. The antiviral antibacterial incense can be ignited to produce smoke that has slight, sweet, slightly spicy, and fresh peppermint smell, which soothes and relax a smeller; the antiviral antibacterial incense can also kill harmful viruses and bacteria in the air and can inhibit common viruses and bacteria to 90% and above, such as Escherichia coli and Staphylococcus aureus. The smoke contains various effective Chinese herbal ingredients that can resist viruses and bacteria; the smell passes through olfactory cells of the orifices and enter the body via the skin so as to assist in clearing harmful viruses and bacteria in the body, thereby benefiting people's physical health.

This tubular flame burner has a tubular combustion chamber having one open end, and is provided at the closed end side of the combustion chamber with a nozzle that blows in a fuel gas and a nozzle that blows in an oxygen-containing gas facing in the direction of the tangent line of the inner wall surface thereof. The open end side of the combustion chamber is provided with a nozzle that blows in a gas for adjusting the temperature of the combustion exhaust gas, and is provided with a backflow prevention means for preventing the gas for adjusting temperature blown in from the nozzle for blowing in the gas for adjusting temperature from backflowing towards the nozzle for blowing in the fuel gas.