5results about How to "Reduce gasification" patented technology

The utility model relates to the technical field of liquefied gas filling, in particular to an explosion-proof device, which comprises a filling pipeline, a cooling outer pipe and a small gas storage tank, a pressure detection valve is arranged at the tail of the filling pipeline, the cooling outer pipe is mounted on the outer side of the filling pipeline, a cooling cavity is formed between the cooling outer pipe and the filling pipeline, and the small gas storage tank is mounted in the cooling cavity. A pressure relief branch pipe is installed at the tail of the filling pipeline, the pressure relief branch pipe is communicated with the filling pipeline, an automatic pressure relief valve and a check valve are arranged on the pressure relief branch pipe, a first air inlet pipe is arranged on the small air storage tank, and a second air inlet pipe is installed at the side end of the first air inlet pipe. The gas filling system has the advantages that the gasification amount of liquefied gas is reduced, automatic pressure relief can be achieved under the emergency condition, pipeline overpressure burst and operator injury are prevented, potential safety hazards of the gas filling system are reduced, the safety and reliability of the gas filling system are improved, accidents are reduced, and the safety of the gas filling system is improved. And the life safety of personnel and the normal operation of equipment are ensured.

The utility model relates to liquefied natural gas (LNG) long distance transportation and cold energy utilization technical field, concretely is a kind of LNG long distance transportation system based on composite heat insulation and dynamic cold preservation, LNG long distance transportation system equipment include: upstream LNG receiving station storage tank, LNG long distance transportation pipeline, downstream LNG receiving station storage tank, propane-liquid nitrogen exchanger, open rack type gasifier, LNG comes out from upstream receiving station storage tank, enters downstream receiving storage tank by long distance transportation pipeline, after propane-liquid nitrogen exchanger and open rack type gasifier temperature rising gasification again, enter natural gas pipe network, for downstream user use, the utility model utilizes propane-liquid nitrogen cold screen to carry out active intervention type heat preservation, block most of the heat entering inner tube, to reduce the gasification of LNG in inner tube, improve economic benefit.

The invention discloses a safe low-energy-consumption liquid oxygen pressurization output system, and belongs to the technical field of mineral resource exploitation. The system comprises a vertical Dewar tank, a liquid pressurization system, a horizontal Dewar tank, a liquid-gas separation device and a shunting pipeline system, the vertical Dewar tank is connected with an inlet of the horizontal Dewar tank through the liquid pressurization system, and an outlet of the horizontal Dewar tank is connected with the shunting pipeline system through the liquid-gas separation device. And a preset flow valve group is mounted on a shunting pipeline of the shunting pipeline system. The invention aims to solve the problems of improving the liquid oxygen conveying efficiency and safety, reducing the gasification loss, reducing the energy consumption and improving the rock breaking accuracy in the prior art, improve the liquid oxygen conveying safety, ensure the liquid oxygen rock cracking effect and reduce the rock cracking cost.

The invention provides a method for preparing clean diesel oil by mixing and gasifying cellulosic biomass and pulverized coal. The method comprises the following steps: carbonizing cellulose biomass to obtain biomass coal, mixing the biomass coal with pulverized coal, feeding the mixture into a gasification furnace, introducing water vapor and oxygen for gasification to obtain raw gas, and then sequentially carrying out conversion, purification, Fischer-Tropsch reaction, intermediate fractionation, hydrorefining, hydrocracking and product fractionation to obtain the clean diesel oil. By combining the characteristics that biomass pulverized coal is rich in hydrogen and less in carbon and the pulverized coal is rich in carbon and less in hydrogen, biomass and pulverized coal are mixed, and a clean diesel oil product with a relatively low condensation point is prepared through indirect coal liquefaction; the co-gasification of the cellulosic biomass and the pulverized coal overcomes the defects of independent gasification, complementary advantages can be realized after the cellulosic biomass and the pulverized coal are mixed, the energy consumption of pulverized coal gasification and shift reaction is reduced, the cost is saved, a clean diesel oil product with a lower condensation point can be prepared through the Fischer-Tropsch synthesis reaction, and the preparation ways and methods of the clean diesel oil are increased. And the dependence on fossil energy can be reduced.

The electromagnetic suspension device comprises a working cavity, an induction coil and a laser output device, the induction coil is arranged in the working cavity and connected with an alternating power supply, a coil inner cavity of the induction coil is used for containing the ultrahigh-temperature alloy, and the laser output device is arranged in the working cavity. The transmitting path of the laser output device corresponds to the coil inner cavity, the induction coil can excite an alloy sample placed in the coil inner cavity to generate induction eddy current after being connected with alternating current, the Joule effect generated by the induction eddy current can enable the sample to be heated continuously, and laser emitted by the laser output device can provide an extra heat source for the alloy sample. And meanwhile, the induction coil can enable the inside of the alloy sample in a molten state to generate an electromagnetic stirring phenomenon, so that the structure uniformity of the alloy sample is effectively improved, the generation of defects such as shrinkage cavities, cracks, air holes and segregation is effectively inhibited, and the technical effect of optimizing the material performance is further achieved.