3results about How to "Full reuse" patented technology

The invention relates to a method and device for detecting the liquid level position in an oil casing annulus. The method comprises the following steps: acquiring a temperature distribution data sequence of an oil well acquired by a distributed optical fiber sensing system; feature points caused by the tubing coupling are recognized through a peak detection algorithm, and the number and positions of the feature points are recorded; obtaining a first liquid level according to the number of the feature points; determining a second liquid level based on local temperature characteristics of the temperature distribution data sequence; and calculating the liquid level depth according to the feature point position, the first liquid level and the second liquid level. By the adoption of the method, continuous and real-time working fluid level detection can be achieved through existing distributed optical fiber sensing data, dependence on special hardware is avoided, and system complexity and cost are remarkably reduced on the basis that measurement robustness and accuracy are improved.

The present application relates to the technical fields of biomass gasification furnace, and disclose a tower-shaped grate, the present application is arranged with the annular base of receiving ash and slag below the furnace body, so as to ensure that after the discharge of ash and slag, the fresh air outside will be sucked from the output direction of ash and slag, and enter the furnace through ash and slag, the outside air passes through ash and slag again, so that ash and slag are further burned, and the waste heat generated in ash and slag enters the furnace along with air, and the heat can be fully reused, and by means of waterless slagging, the water vapor injection into the furnace is reduced, the temperature in the furnace is prevented from being suddenly reduced, the heat energy is saved, and the purpose of saving heat energy and recycling residual heat energy is achieved.

The utility model discloses a kind of ammonia circulation gas turbine-double turbine expander combined structure, including air supply unit, compressor, combustor, gas turbine and flue gas discharge channel being sequentially connected in series, and coil pipe, booster pump, turbine expander, compressor is mechanically linked with gas turbine by a rotating shaft, first coil pipe is filled with ammonia decomposition catalyst, liquid ammonia supply unit is sequentially connected booster pump, second coil pipe, first turbine expander, first coil pipe, second turbine expander and fuel regulating valve by pipeline, finally access the fuel inlet of combustor;The output end of first turbine expander and second turbine expander is connected kinetic energy conversion device respectively.The utility model is to the staged utilization of ammonia fuel energy by double turbine expander, combined with the heat exchange of flue gas waste heat in coil pipe and the chemical energy release of ammonia decomposition, when not combined with heat and power, single machine thermal efficiency can be as high as 70% or more, compared with traditional single cycle gas turbine efficiency is greatly improved.