34results about How to "Improve ignition ability" patented technology

The invention relates to an adjustable integrated high-voltage grid electrode pulse modulator. An improved design is conducted on a filament high potential power supply circuit, a positive biased high potential power supply circuit, a negative biased high potential power supply circuit and a grid electrode pulse modulator circuit, and the high dense integration of the three high potential power supply circuits and the grid electrode pulse modulator circuit is achieved; a feedback circuit of a high potential power supply is improved, a magnetism feedback high voltage isolation sampling technology is adopted, and respectively independent adjustment to the high potential power supply output voltage values is achieved at the low voltage side; a high potential integrated failure detecting circuit is added, and the high potential power supply multi-circuit failures are integrated into one circuit signal; a pulse driving circuit is improved, and a dual-level denoising circuit is added; a grid electrode floating plate modulating circuit is improved, and an fire-making resistance protection circuit protection modulator and a traveling wave tube are added; a high-voltage transformer structure used for the modulator is improved, the size is reduced, and high-voltage isolation is achieved.

The invention provides smokeless propellant powder with a safe, environmental-friendly and porous structure for fireworks. The smokeless propellant powder comprises the following components in parts by weight: 30-50 parts of high-energy oxidizer, 1-5 parts of catalyst, 10-80 parts of single-base powder, 1-5 parts of stabilizer, 1-5 parts of adhesive, 10-30 parts of primary explosive, 10-20 parts of pore foaming agent and 1-5 parts of combustion speed improving agent. The smokeless propellant powder is smokeless and environmental-friendly, and can ensure that no residual propellant exists in a canister launcher after launching; and the smokeless propellant powder has the characteristics of strong ignition capacity, easiness in ignition, high-temperature combustion products, greatly enhanced capacity of igniting an effect chemical, and low hygroscopicity.

The invention relates to a high-back-pressure plasma igniter. The problem that an existing igniter cannot work under the environment of high back pressure and variable back pressure is solved. According to the technical scheme, the high-back-pressure plasma igniter comprises a shell, a cathode, an anode, an air inlet, a binding post, a swirler, a sealing ring structure, an insulation sleeve structure, an adjusting nut, a spring, a restrictor and an inner nut. An air connecting hole in the restrictor is communicated with a through hole in the shell and the air inlet. External threads of the adjusting nut are meshed with internal threads on the shell. A boss arranged on the cathode is attached to a step structure of a second insulation sleeve, and the spring is compressed between the boss and a first insulation sleeve. The high-back-pressure plasma igniter has the advantages of being small in size, light, convenient to use, high in ignition capacity and capable of being started many times and running under high back pressure, and can be used as an ignition device of various heaters, combustion chambers, aero-engines and rocket engines.

The invention provides a composite incendiary agent for destroying ammunitions and a preparation method of the composite incendiary agent. The composite incendiary agent is prepared from the following components in percentage by weight: 60%-70% of a main reaction medicament, 1%-5% of a diluent, 5%-10% of a gas making agent and 20%-30% of an auxiliary medicament, wherein the main reaction medicament is prepared from 0.3-1.5 parts of iron sesquioxide, 1.6-2.9 parts of ferroferric oxide and 1 part of powdered aluminum; the dilute is alumina powder; the gas making agent is prepared from 0-5 parts of silicon carbide powder and 6 parts of potassium nitrate powder; the auxiliary medicament is prepared from 6 parts of copper oxide powder, 4 parts of powdered aluminum, 1-3 parts of silicon dioxide powder, 5 parts of nickel powder, 0-3 parts of calcium fluoride powder and 0-3 parts of calcium carbonate powder. The composite incendiary agent is stable, the combustion pressure is uniform, the fluidity of generated metal melt is good, the jet velocity meets incendiary requirements of the ammunitions, and the composite incendiary has strong capacity for smelting shells of projectiles the strong capacity for igniting explosives and does not detonate the explosives. When applied to the destroying of the ammunitions, the composite incendiary agent is low in dosage, high in action speed, relatively safe, efficient and convenient.

The invention discloses an automatic ignition system and method for a synthesis furnace. The system includes a synthesis furnace, an ignition device and at least one flame monitoring device. The ignition device includes an ignition control box, a gas control cabinet, an ignition gun, a first cable, and a hydrogen delivery pipe And the air delivery pipe, the flame monitoring device includes an electric control box, a flame detector, and a second cable. The furnace wall of the synthesis furnace is provided with an ignition device fixing frame and a flame monitoring device fixing frame. On the fixed frame and the flame monitoring device fixed frame, the method includes installing the ignition gun, the ignition control box and the gas control cabinet, connecting the ignition control box and the gas control cabinet, the gas control cabinet and the ignition gun, the ignition gun and the ignition control box, installing and connecting the electric Control box and flame detector, connected to air, connected to hydrogen, energized and ignited, temperature and flame monitoring, have the advantages of simplicity, less faults, high ignition success rate, automatic control, etc., safe and reliable, with a service life of more than 15 years.

Provided is a scramming combustion chamber flowing to a linear plasma igniter, which is composed of an insulator (101), a discharge cathode (102), a discharge connection electrode (103), and a discharge anode (104). The discharge cathode (102) is connected to the cathode of the plasma power supply (301) by a wire built into the insulator (101); the discharge anode (104) is connected to the anode of the plasma power supply (301) by a wire built into the insulator (101); The electrode (103), the coupling capacitor (302), and the anode of the plasma power supply (301) are sequentially connected in series. Compared with the existing igniter and powder-type ignition method, the scramjet combustion chamber flow-to-linear plasma igniter and ignition method of the present invention are easy to be used in combination with the existing aero-engine drive power supply, thereby meeting the requirement of multiple repeated ignitions; Compared with the spark plug ignition method, the ignition method proposed by the present invention has a larger initial fire core and stronger spark energy, so the ignition capability is stronger.

The invention discloses a multichannel plasma area igniting burner. The igniting burner comprises a plasma power supply, a nozzle, an air inlet fish nozzle, a tangential air hole, an air pipe, a hollow insulator, a high-voltage electrode, an insulation piece, a low-voltage electrode, a housing, a swirl chamber, air vents, barrier mediums, a low-speed area, center jet flow and a flame stabilization chamber. Fuel oil is atomized by the use of a splash plate disposed inside the air inlet pipe, mixed gas composed of high-speed rotation air-flow and direct current jet flow is disposed inside the igniting burner, and the two flows cool the igniting burner. The space between the high-voltage electrode and the low-voltage electrode is filled with the inflammable mixed gas flowing at a low speed, so that multi-point discharge and ignition can be carried out in a low-speed mixed gas area inside the igniting burner; and an on-duty high-temperature combustion thermonuclear area and the flame stabilization chamber have ignition source and flame stabilization functions and form a miniature high-speed combustion chamber, so that the combustion chamber can efficiently and reliably ignite and keep flames stable under poor conditions such as high-speed, low-temperature, low-pressure, coal firing and the like.

The invention provides an ignition destroy bomb and a preparation method thereof. The ignition destroy bomb comprises an outer shell body, a jet nozzle, a tubular powder column and a seal cap, wherein the jet nozzle, the tubular powder column and the seal cap are sequentially arranged inside the outer shell body from bottom to top. The outer shell body includes an upper cylindrical portion and a lower conical frustum portion. The jet nozzle is arranged inside the conical frustum portion of the outer shell body. Furthermore, the external surface of the jet nozzle abuts against the internal wall of the conical frustum portion. A cylinder-shaped inner shell body is arranged inside the cylindrical portion of the outer shell body and abuts against the internal wall of the cylindrical portion. The powder column is loaded inside the inner shell body. The powder column includes a main powder charging column and an igniting powder column, wherein the bottom end face of the main powder charging column is a conical surface protruding outwards, and the conical surface is attached to the top portion of the jet nozzle closely; the igniting powder column is loaded in an inner cavity of the main powder charging column, and the length of the igniting powder column is equal to that of the main powder charging column; and two pieces of seal paper are stick on the upper end face of the main powder charging column and the lower end face of the igniting powder column respectively. By means of the ignition destroy bomb, unexploded bombs can be destroyed fast, safely and efficiently.

The invention discloses a power system of an electric automobile. The power system comprises a generator, a power cell, a power cell management machine, a starting machine, a bidirectional DC / DC converter, a starting cell, and a starting cell management machine, wherein the power cell is used for providing electric energy for the electric automobile; the starting machine is used for starting the generator; a high-voltage end of the bidirectional DC / DC converter is connected with the power cell; the starting cell is connected with a lower-voltage end of the bidirectional DC / DC converter and is used for supplying electricity for the starting machine; the starting cell management machine is used for detecting the temperature of the starting cell, and when the temperature of the starting cell is lower than a preset temperature, the starting cell management machine controls the bidirectional DC / DC converter, so that the starting cell discharges to the power cell. According to the power system disclosed by the invention, the striking capacity of the complete automobile under the ultralow temperature environment can be improved, the cost does not need to be increased, and the occupied space of the cell does not need to be enlarged. The invention further discloses the electric automobile comprising the power system of the electric automobile and a starting method of the electric automobile.

The invention relates to an ignition powder and a preparation method, belonging to the field of energetic materials. The composition is as follows: 20-40% of graphene; 40-60% of potassium nitrate; 5-10% of calcium peroxide; 12-30% of ammonium persulfate; 1-8% of binder; The preparation process of the ignition powder is as follows: take graphene, potassium nitrate, calcium peroxide, ammonium persulfate and red phosphorus according to the above ratio and mix evenly; On the mixture, stir evenly, filter, dry, and sieve again to obtain the ignition powder. The ignition powder and its preparation method of the present invention have strong ignition ability, high ignition reliability and low sensitivity, ensuring the safety of transportation and use. The preparation method does not need to use complex equipment, the process is simple, and it is convenient for continuous production. .

The invention provides a mini-type non-cooling plasma jet igniter which mainly comprises an anode, a cathode, a whirlcone, ceramic parts, a shell, a spring, and an air supply pipeline (cathode connection pipe), wherein parts such as the anode, the cathode and the ceramic parts are pressed and fixed via the shell and the spring; and the cathode is in plug-in connection with the cathode connection pipe. The mini-type non-cooling plasma jet igniter has the advantages that the size is small; the weight is light; the use is convenient; the mounting and the maintenance are simple; the ignition capability is high; and repeated ignition can be realized. The mini-type non-cooling plasma jet igniter can serve as an ignition device for various heaters, combustion chambers, aero-engines and ATR combined engines.

A self-excited multi-point jet plasma igniter is composed of a shell (101), an insulator (102), a jet cavity (103-1-103-4), and a discharge electrode (201-206). Compared with the traditional single-jet igniter, the self-excited multi-point jet plasma igniter of the present invention can generate multiple jets, which can make up for the shortcomings of single-jet direction fixed and poor environmental adaptability. At the same time, the initial fire core formed by multiple jets forms multiple adjacent ignition sources, which effectively improves the ignition capability. In summary, the igniter of the present invention has a stronger ignition capability.