43results about How to "Avoid gas explosion" patented technology

The invention discloses a water electrolysis device which comprises an electrolysis cell, a gas supply pipeline and a gas supply pump, wherein the electrolysis cell comprises an ion exchange membraneand a cathode chamber, wherein a cathode electrode is disposed in the cathode chamber and generates hydrogen gas when the electrolysis cell is used to electrolyze water; the gas supply pump absorbs air and is connected with the gas supply pipeline by a conduit, and a lead angle is formed between the conduit and the gas supply pipeline, so that air in the conduit is introduced into the gas supply pipeline to dilute hydrogen gas in the gas supply pipeline. The water electrolysis device is 8.5 liters, and generates hydrogen gas at a rate from 120ml / min to 600ml / min. The water electrolysis devicehas the advantages of simple structure, convenient operation, effective space use, small size and low noise.

The invention discloses an electronic package and a fabrication method thereof. The fabrication method comprises the steps of: providing an interposer having a plurality of conductive vias and at least an opening formed at a periphery of the conductive vias; disposing at least an electronic element on the interposer; and bonding a cover plate to the electronic element and forming an encapsulant between the cover plate and the interposer so as to encapsulate the electronic element and fill the opening, thus allowing the encapsulant in the opening to come into contact with air. As such, during a subsequent high temperature process, evaporated solvents can flow out of the encapsulant through the opening without forming bubbles in the encapsulant, thereby preventing a bubble explosion from occurring..

The invention relates to the field of bubbling stirring technology, in particular to a gas explosion-preventive spiral spray pipe bubbling stirring apparatus which comprises a make-up tank, a spiral spray pipe, a gas inlet valve, a gas inlet pipe, a gas outlet valve, a discharge valve, a discharge pipe, a pressure gas inlet feed pipe, a compressed air outlet valve, an air compressor, a pressure tank gas inlet feed valve, a pressure tank, a pressure tank discharge pipe, a spiral spray pipe fixed clamp A, a spiral spray pipe fixed clamp B and a spiral spray pipe fastening device; the spiral spray pipe is arranged at the bottom side part of the make-up tank, the discharge valve is arranged at the taper bottom of the make-up tank, and the spiral spray pipe and the make-up tank are fastened by a fastening nut and a sealing pad; the diameter of the spiral spray pipe is gradually increased after entering the make-up tank, and the spiral spray pipe is spirally downward slanted along with inner arc of the make-up tank; and the make-up tank is internally provided with the spiral spray pipe fixed clamp A13 and the spiral spray pipe fixed clamp B14 which are used for fixing the spiral spray pipes. The gas explosion-preventive spiral spray pipe bubbling stirring apparatus can reduce the gas flow rate through reducing the spiral spray pipe, and can effectively prevent gas explosion phenomenon due to overhigh gas speed, and has the advantages of being long in continuously stirring time, high in efficiency, low in energy consumption, simple in structure, easy to maintain and clean, and low in cost.

The invention relates to a scroll type flame combustion device with safety manual ignition. The device comprises a deflector group, a nozzle and a cover body. The deflector group can be connected with a fuel tank and contains two frame bodies and several blades. The two frame bodies are pivoted to each other. Each of the blades is spirally distributed on the two frame bodies. An air guide channel for letting the air pass through is formed between each two adjacent blades. The nozzle is arranged inside the deflector group and contains at least a vent hole which lets fuel inside the fuel tank pass through. One end of the deflector group, far away from the nozzle, is connected with the cover body. The cover body is prepared from a nonopaque material. The cover body encloses to form a limit space which is communicated with the vent hole of the nozzle.

The invention relates to a composite film for a packing device with controlled atmosphere fresh-keeping and microwave self-venting and a method for manufacturing the same. The composite film includes: a substrate film layer provided with a first group of micro-gap structure area of which the adjacent edges physically contacted to each other; a sealing film layer covering one side of the first group of micro-gap structure area, and connected to the substrate film layer having the first group of micro-gap structure area through an adhesive layer, and then forming a second group of micro-gap structure area along the thickness direction on the composite film integrating the sealing film layer, the adhesive layer and the substrate film layer. The composite film has the function for regulating the high-temperature and high steam pressure, and avoids the packing device from blasting during the heating process, and prolongs the fresh-keeping and storing time for fresh vegetable and fruit. Besides, the composite film can be directly put in to a microwave oven for heating and regulating, which can not generate the problem of dry and hard food caused by huge drain of high temperature steam.

The invention discloses a diversion tunnel plug head exhaust structure and an exhaust method thereof; the diversion tunnel plug head exhaust structure comprises a diversion cylinder and a concrete plug head arranged in a blocking segment in the diversion cylinder; the bottom of the concrete plug head is pre-buried with an air discharge pipe and a water discharge pipe; an upstream and a downstream of the concrete plug head in the diversion cylinder are respectively provided with a cofferdam; a grouting gallery and a gate well connected with the grouting gallery are arranged in the concrete plug head; the exhaust method comprises the following steps: 1, paving the air discharge pipe and the water discharge pipe; 2, building the cofferdams; 3, opening a water discharge butterfly valve; 4, casting the concrete plug head; 5, opening an air discharge butterfly valve; 6, observing air discharge pipe water discharge conditions. In certain regions, the diversion tunnel is deeply buried, the top is steep and no drilling construction road can be paved, and vent holes are hard to tap; the diversion tunnel plug head exhaust structure and the exhaust method can be applied to the diversion tunnel plugging construction process, thus fast discharging a cavity in the front segment of the diversion tunnel, preventing gas explosion caused by boosting pressure, and ensuring safety of the plug head structure.

The invention relates to a discarded electronic product treatment method and device. A plurality of discarded electronic products to be treated are conveyed to a vacuum cracking device, and plastic materials in the discarded electronic products are subjected to low-temperature vacuum cracking to generate gaseous oil gas, so that the production of toxic gas and gas explosion phenomena are avoided,the cost is lowered during use, and safety and environment protection are achieved. Then, metal materials are heated and molten into liquid metal in a high-temperature vacuum cracking manner, and thegaseous oil gas and the liquid metal are respectively treated by a filtering device and a separation device to obtain liquid oil products, liquid hydrogen chloride, gaseous auxiliary fuel and the like, so that the practicability of the discarded electronic products is improved greatly. The discarded electronic product treatment method and device have the advantages of safety in use, environmentalfriendliness and full recovery.