6 results about "Water gas" patented technology

The invention relates to a carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity. The method is characterized in that for an oil reservoir formed by homogeneous cores and heterogeneous cores with the permeability ratio not exceeding 30, a water and gas alternate injection method is adopted for production; for an oil reservoir formed by heterogeneous cores with the permeability ratio in a range of 30 to 100, a carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when gas channeling occurs in a production well, small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging; for an oil reservoir formed by heterogeneous cores with the permeability ratio being higher than 100, the carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when the gas channeling occurs in the production well for the first time, elastic strong glue is injected into the formation for sealing and plugging; and when the gas channeling occurs in the production well again, the small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging.

The invention relates to an experiment device for evaporating scaling risks of a water production gas well shaft and a method. The experiment device comprises a shaft simulation and heat-preservationsystem and a fluid injection and collection system, wherein the shaft simulation and heat-preservation system is used for simulating a shaft in a stratum, used for providing a flowing channel for gas-water two-phase fluids, and used for keeping the shaft at a stratum temperature; the fluid injection and collection system is used for injecting water and gases into the stratum and used for collecting produced stratum water. By adopting the experiment device, gas-water two-phase flowing in the shaft and a dynamic scaling process of stratum water under different gas-water ratio conditions in the shaft can be simulated, scale amounts on the wall of a metallic tube can be tested in different sections, the morphology of scaling can be observed, blocking situations can be judged, the scale amountsand the scale layer thickness cross sections along the wall of the metallic tube can be drawn, total scale amounts, adhesion scale amounts, parts retained in the metallic tube, of unattached scale, and stratum water production parts of unattached scale can be tested, and allocation ratios of scale substances of different modes in the shaft can be analyzed; by adopting the experiment device, not only scaling and blocking risks in the shaft, but also anti-scaling effects of an anti-scaling agent, can be evaluated; the experiment device is simple in equipment, convenient to operate and high in feasibility.

The invention provides a waterproof and ventilating structure of a solar junction box. A cover plate is installed on a hole in the front end of a body of the solar junction box, the cover plate is connected with the body in a sealed mode through a seal ring, exhaust holes are formed in the cover plate, a waterproof ventilating membrane is correspondingly arranged in the exhaust holes, the air in the solar junction box can be exhausted through the waterproof ventilating membrane, and water vapor outside the solar junction box cannot enter the solar junction box. In addition, due to the facts that sealing clamping grooves are further formed in the positions of connection between the solar junction box and cables of a cable connector, and sealing is carried out through corresponding cable seal rings, and the possibility that the water vapor enters the solar junction box through the positions of the connection between the solar junction box and the cables is eliminated. The waterproof and ventilating structure of the solar junction box is applicable to the solar junction box which is installed outdoors, and has the advantages that the effect of water resistance and the effect of ventilation are good, the service life is long, and the problem that devices inside the solar junction box can be easily influenced by the environment to cause reduction of performance is solved.

The invention relates to a light-emitting diode packaging structure which is formed in a main way that an inner transparent colloid layer is additionally arranged between a light-emitting diode crystalline grain such as a blue crystalline grain and a fluorescence colloid layer such as a yellow fluorescence colloid layer, and an outer transparent colloid layer is matched with the inner transparent colloid layer to wrap the fluorescence colloid layer so as to reduce the condition that light rays of the LED crystalline grain are absorbed by the LED crystalline grain because of the reflection of fluorescent powder particles, which is helpful to improve the total light-emitting amount and lower the LED crystalline grain heat energy. In addition, the invention also provides better steam isolation for the fluorescent powder.

The invention relates to a fixed-bed pure-oxygen continuous gasification device and process adaptable to diversified coals. According to the device and the process, CO2, pure oxygen and superheated steam serve as gasifying agents and subject to a gasification reaction with feed coal in a fixed-bed pure-oxygen continuous gasifier, so as to generate gasified coal gas; the gasified coal gas enters a dust remover so as to remove solid particles from the gasified coal gas, and a water cooler is arranged at the upper part of the efficient dust remover and is used for recovering part of sensible heat from the gasified coal gas; the gasified coal gas subjected to dust removal enters a heat-pipe heat exchanger for heat recovery, and low-pressure steam is a byproduct; and low-temperature gasified coal gas enters a low-pressure coal gas scrubbing tower for final cooling and dust removal, and scrubbed water gas is connected and conveyed to a gas tank. The content of CO and H2 in the gasified coal gas can reach 80% or more, the ratio range of adjustment of CO among ingredients of the coal gas is 40-65%, the ratio range of adjustment of H2 among the ingredients of the coal gas is 5-40%, and the gasified coal gas can serve as raw material gas of a variety of chemical products through being subjected to further deep treatment by processes such as conversion and purification.