34results about How to "Safe and reliable ignition" patented technology

The invention discloses a biogas tea fixing machine, which comprises a frame, a horizontal tea fixing roller arranged on the frame, a driving device driving the tea fixing roller to roll, and a heating device used for heating the tea fixing roller. The biogas tea fixing machine is characterized in that: the heating device comprises a stove and a biogas combustion device arranged under the tea fixing roller; the biogas combustion device comprises a biogas delivery pipeline which is connected with a biogas digester and provided with a valve, and a plurality of high temperature-resistant biogas ejectors connected with the output end of the delivery pipeline; the biogas ejectors pass through the side wall of the stove to extend into the hearth of the stove; and biogas nozzles of all the biogas ejectors are arranged at equal intervals along the length direction of the hearth. The fixing machine is provided with heat by the combustion of the biogas, and the combustion cost is lower, so the manufacturing cost of tea is reduced; the main component of the biogas is methane, and generates water and carbon dioxide after combustion, so the environment is protected; besides, the combustion value of the biogas is high, so the biogas provides enough heat for the fixing machine; therefore, the produced tea has higher quality.

The invention relates to an ignition method of a boiling furnace. The method comprises the following steps of: laying hot furnace slag on an air distribution plate; laying bamboo charcoal on the hot furnace slag, and igniting the bamboo charcoal to form a charcoal fire layer; forming a micro negative pressure of minus 10 to 50Pa in a hearth; starting an air blower, so as to enable the charcoal fire layer to slightly jump and not to be buried by the furnace slag; uniformly spreading slack coal on the charcoal fire layer, and gradually increasing air quantity so as to raise the temperature of a material layer; when air output reaches the minimum air speed during normal operation, maintaining the temperature-rise speed of the material layer according to the quantity of the spread slack coal; when the temperature of the material layer reaches 600 to 700 DEG C, increasing the quantity of the slack coal and the air output to enable the air speed to exceed the minimum air speed within 5s; when the temperature of the material layer reaches 750 to 800 DEG C, remaining the addition amount of the slack coal and the air output unchanged so as to steadily raise the temperature; when the temperature of the material layer reaches 800 to 850 DEG C, starting a coal feeder to normally feed coal, remaining the air output unchanged, and adjusting a combustion situation until a flame is stabilized to be golden yellow. According to the ignition method, the ignition time is short and the one-time ignition success rate is high.

The invention discloses an aerosol fire extinguishing agent for a hand-held fire extinguisher and a preparation method thereof. The fire extinguishing agent comprises the following components in terms of mass percentage: 44%-62% of potassium nitrate, 5%-10% of potassium perchlorate, and ammonium nitrate 3%~8%, iron oxide 0.5%~1.5%, melamine 10%~25%, phenolic resin 5%~9%, nitroguanidine 5%~12%. The preparation steps are as follows: dissolve part of the phenolic resin with alcohol, then add the potassium nitrate, the potassium perchlorate, the ammonium nitrate, the iron oxide, the melamine, the nitroguanidine and the remaining The phenolic resin is mixed and stirred evenly to form a lump, sieved, granulated, dried, and pressed to form. The composition of the fire extinguishing agent is simple, the cost is low, the preparation process is easy to implement, and it is safe and reliable. The compatibility between the components in the fire extinguishing agent is good. Less residue.

The invention relates to the technical field of vehicle fire-proof safety, and particularly relates to a vehicle fire test system and method. The system comprises a test platform, a test instrument assembly and a control device, wherein the test platform is used for bearing a fire test sample vehicle; a monitoring device arranged at a fire-proof weak position of the sample vehicle is mounted in the sample vehicle and is used for monitoring related data of the sample vehicle in the burning process; the test instrument assembly comprises an ignition device arranged below the sample vehicle, a multi-channel data collection device connected with the monitoring device and used for collecting monitoring data of the monitoring device, a heat acquisition device arranged above the sample vehicle and used for collecting heat released in the burning process of the sample vehicle, a timer for determining test time of a fire test and a thermal imager for acquiring a flame temperature of the samplevehicle in the burning process; and the control device is connected with the test instrument assembly. The vehicle fire test system and method disclosed by the invention are low in cost, high in speedand good in reproducibility and can accurately control flame burning strength and burning time.

The invention discloses a solid-liquid power sounding rocket land launching sequential control system which comprises a main control computer, a ground sequential control system and a rocket-mounted single chip computer control system, wherein the main control computer sends a control command to the ground, sequential control of a rocket-mounted engine igniter is achieved through the ground sequential control system which is further used for conducting the sequential control on a rocket-mounted engine liquid path valve and the rocket-mounted single chip computer control system, and meanwhile opening and closing condition information of the rocket-mounted engine igniter and the liquid path valve is obtained and sent to the main control computer. The sequential control of a rocket-mounted engine pressurized valve is achieved by the rocket-mounted single chip computer control system, and meanwhile the closing and opening condition information of the rocket-mounted engine pressurized valve is obtained and sent to the main control computer through the ground sequential control system. The solid-liquid power sounding rocket land launching sequential control system has the advantages of solving the key problems of matching the solid-liquid power sounding rocket ground sequential control with a rocket-mounted sequential control circuit and meeting millisecond level requirements of launching sequential errors.

A circuit arrangement (12) is realized for supplying high-frequency energy for generating discharges, in particular for plasma generation, in a vacuum chamber (2), said circuit arrangement having: a DC voltage supply (13), a step-up conversion switch circuit (16) and control unit (17). The DC voltage source (13) provides a DC voltage (Ucc). The boost converter switching circuit comprises a series circuit composed of an inductor (18) and a controllable switch (19), wherein the inductor (18) is connected to one pole (21 ) and the first electrode (D) of the switch (19). The second pole (S) of the switch (19) is grounded, and the switch (19) also has a control pole (G). The control unit (17) is configured to control the switch (19) at high frequency in order to generate a periodic, pulsed output voltage (U DS ), the peak magnitude of the output voltage is greater than the magnitude of the direct voltage (Ucc) of the direct voltage power supply (13). directly, without switching, at the output connection (24) with the output voltage (U DS ), the output joint (24) is determined for direct connection with the electrode (8) of the vacuum chamber (2). A system for generating electrical discharges, in particular a low-pressure plasma system, is likewise realized with such a circuit arrangement ( 12 ).

The invention relates to an igniter used for deflation and gas injection. The igniter comprises a combustion cylinder. An ignition needle and a flame probe are arranged in the combustion cylinder. The combustion cylinder is connected with a combustor connector. The combustor connector is provided with a nozzle. A fuel gas inlet is formed in the bottom of the combustion cylinder. By means of the igniter, liquefied petroleum gas or atomized diesel oil serves as fuel, an automatic ignition function and a flame monitoring function are achieved, and the igniter is used for achieving safe and reliable ignition in the deflation and injection process during shale gas testing. The problems that in the prior art, ignition reliability is low, installation is not convenient, and safety performance is poor can be solved. The flame rigidity of the igniter is high, ignition is safe and reliable, a real-time flame monitoring function is achieved, and safe and reliable ignition can be achieved during shale gas deflation and injection.

The invention relates to an ignition electrode suitable for multiple radiant tube burners. An electrode wire passes through an ignition head and is fixed with the ignition head, an ignition tripod is fixedly arranged at the right end of an electrode tube, and an insulated ceramic tube passes through a circular through hole in the center of the ignition tripod and is positioned and fixed; an electrode catheter is arranged outside the electrode tube, and the right end of the electrode catheter is connected with an electrode mounting hole in a burner combustion chamber; the right end of an electrode mounting joint is connected with a connector, and an electrode head is arranged at the left end of the electrode mounting joint; the left end of the electrode catheter is connected with one horizontal end of a cooling air sleeve of a three-way structure; and the other horizontal end of the cooling air sleeve is connected with the connector, and the cooling air port of the cooling air sleeve in the vertical direction is communicated with a ring seam between the electrode catheter and the electrode tube. The single electrode realizes automatic ignition and flame monitoring functions, and is suitable for multiple radiant tube burners; the ignition electrode wire is insulated and encircled in the whole travel, so that ignition of side walls and surface oxidation of the electrode wire are effectively avoided; and the cooling air effectively reduces the temperatures of the electrode ignition head and the tripod, so that the service life of the electrode is greatly prolonged.

The invention discloses a heat transfer compounding integrated furnace for biomass burning. The furnace comprises a steam boiler, a smoke vent of the steam boiler is sequentially communicated with a hot blast heater and a hot water furnace, the hot water furnace is communicated with a flue gas emission and flue gas waste heat recycling device, one fan is needed by whole equipment, therefore the production cost can be saved; furthermore, the smoke exhaust way of a traditional flue can be changed by the flue gas emission and flue gas waste heat recycling device, so that energy saving can be realized, and the dynamics of environmental protection can be improved; in addition, by adopting the scheme provided by the invention, the heat transfer compounding integrated furnace is novel in structure, convenient and quick to ignite, safe and convenient for fuel transportation and high in heat efficiency, and the production cost can be greatly reduced.

The invention provides a method for preparing nano conductive carbon by cracking an organic compound through a hybrid plasma technology. The method is characterized in that a first cracking reaction zone formed by a direct current arc plasma and a second cracking reaction zone formed by a hybrid plasma consisting of a high-frequency plasma are comprised; and the first cracking reaction zone and the second cracking reaction zone are partitioned by a cylindrical graphite wall surface, the direct current arc plasma is positioned at the inner side of the cylindrical graphite wall surface, and the high-frequency plasma is positioned at the outer side of the cylindrical graphite wall surface. According to the method, the pure nano conductive carbon can be obtained with high efficiency, and valuable combustible gas side products can also be obtained; and meanwhile, the device has good running stability and continuity, and can be used for treating large particle and block solid materials.