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38results about How to "Little energy loss" patented technology

Pipeline bore damage state diagnosis method

The invention relates to the field of pipeline nondestructive testing, in particular to a pipeline bore damage state diagnosis method. An ultrasonic electromagnetic ultrasonic excitation end sends a signal to the inner bore of a detected pipeline, and an ultrasonic electromagnetic ultrasonic receiving end obtains a reflection signal. A waveform database is established, wherein the waveform database comprises a non-damage waveform and a damage waveform of the pipeline. The waveform corresponding to the reflection signal is compared with the waveform in the waveform database, and if the waveformcorresponding to the reflection signal is matched with the damage waveform, determining that the detected pipeline is an inner bore damaged pipeline. The damage location is obtained by time and speedof signal propagation, and the damage size of the inner bore damage pipeline is obtained according to the amplitude of the damage reflection signal. The diagnosis method is suitable for defect detection and recognition of complex structures of the inner walls of various thick-wall pipelines, internal defects and damage positions of the thick-wall pipelines are detected, the hidden defects of thethick-wall pipelines can be detected in time so as to facilitate maintenance and guarantee, and the system operation and maintenance cost can be effectively reduced.
Owner:中国人民解放军陆军炮兵防空兵学院

Method and apparatus for achieving a high efficiency in an open gas-turbine (combi) process

Method and apparatus for achieving high efficiency in an open gas-turbine process, in which a supercharger compresses air, which is burned together with a fuel in a first combustion chamber, which is followed by a first turbine, a second combustion chamber, a second turbine, and a preheating heat exchanger, in which primary bleed water vapor coming from the secondary process, or a mixture of the aforementioned water vapor and air coming from the supercharger are preheated. From the heat exchanger the combustion gases go to a waste-heat boiler, in which the secondary-process feed water is vaporized. The combustion gases are expanded in the second turbine to a pressure 0.5 bar lower than that of the surrounding atmospheric pressure. The remaining combustion gases are compressed by a combustion-gas supercharger to the surrounding atmospheric pressure. After the low-pressure turbine the water vapor is condensed in a condenser into water, which is compressed by a pump to a maximum pressure and is preheated and vaporized in the waste-heat boiler. After the waste-heat boiler the water vapor goes to a combined high/medium-pressure turbine, from which a secondary-process primary bleed is taken, which is injected into the gas-turbine process after the preheating heat exchange after the supercharger and/or at the latest to the start of the blades of the first turbine.
Owner:LOYTTY ARI

Carbon dioxide refrigerator refrigeration system

The invention discloses a carbon dioxide refrigerator refrigeration system. The carbon dioxide refrigerator refrigeration system comprises an integral expansion-compression machine; an exhaust port of a second-grade cylinder of a compressor is connected with an inlet of a gas cooler; an intake port of a first-grade cylinder of the compressor is connected with an outlet of an evaporator; and a refrigerant compressed by the first-grade cylinder of the compressor is discharged into a compressor shell, and enters the second-grade cylinder of the compressor by an air sucking channel of the second-grade cylinder of the compressor. An inlet of an expander is connected with an outlet of the gas cooler; a refrigerant in an outlet of the expander is divided into two ways; most refrigerant passes through one of three sets of electromagnetic valve and capillary pipe combinations; and the other part of few refrigerant passes through a hand valve and an electronic expansion valve to connect with a nozzle formed in the second-grade cylinder of the compressor. The carbon dioxide refrigerator refrigeration system can improve the refrigeration performance by adopting the modes of the integral expansion-compression machine, two grades of compression of middle spraying liquid for cooling and three sets of capillary pipes with different sizes.
Owner:XI AN JIAOTONG UNIV

Dry powder solid fuel gasifying technology and system with waste heat recovery

The invention relates to a dry powder solid fuel gasifying technology and a system with waste heat recovery and aims at solving the problems of the existing equipment such as complicated structure, high equipment investment and operation cost, easy dust deposition of system, low stability and environmental pollution. The technical scheme is as follows: pulverized coal is fed into a reaction chamber of a gasifier and conducts a gasifying reaction under the effect of a gasifying agent at 1200-1650 DEG C to generate a crude synthesis gas; the crude synthesis gas is cooled by water mist sprayed out by an atomizing nozzle when rising above the reaction chamber; then, the crude synthesis gas rises, is fed into a fire tube boiler through a gas pipe with a membrane water wall and further cooled through heat exchange with water between a tube pass and a shell pass, and then is fed into a multi-tube cyclone dust collector and a fly-ash filter for further dust removal until the dust content is less than 1mg/m<3>; and after the dust removal, the crude synthesis gas enters an economizer again and is further cooled to 220-260 DEG C before entering the next process. The technology and system provided by the invention have the advantages of simple technology, wide coal adaptability, low equipment investment cost and operation cost and environmental friendliness.
Owner:WUHUAN ENG

Electronic lock and electric executing device thereof

The invention discloses an electronic lock and an electric executing device of the electronic lock and relates to the technical field of mechanical devices. The electric executing device of the electronic lock comprises a lock sleeve, a first ejector pin, a lock rod, a drive device and a springback mechanism. The lock sleeve and the first ejector pin are arranged on one side of the lock rod. The first ejector pin is located in the lock sleeve. The inner wall of the lock sleeve is provided with sliding ways. Each sliding way and the axis of the first ejector pin forms an included angle. The side wall of the iron rod is provided with a lock groove. One end of the first ejector pin is connected with the drive device. The drive device is used for driving the first ejector pin to rotate along the sliding ways of the lock sleeve so that the other end of the first ejector pin can be far away from the lock groove or is close to and clamps the lock groove. One end of the lock rod is connected with the springback mechanism. The springback mechanism is used for exerting pressure on the lock rod in the axial direction of the lock rod. In this way, the electronic lock and the electric executing device of the electronic lock can greatly reduce the loss and is high in safety and stability.
Owner:北京中兴创远科技有限公司

Charging bow and charging device

The invention relates to a charging bow and a charging device. The charging bow comprises charging bow brackets and pole plates, wherein the charging bow brackets and the pole plates are arranged at intervals, and an elastic buffer piece for providing separation force for each charging bow bracket and each pole plate is arranged between each charging bow bracket and each pole plate. The charging bow also comprises anti-falling connecting pieces used for connecting the charging bow brackets with the pole plates and tightly pressing the elastic buffer pieces between the charging bow brackets andthe pole plates; each charging bow bracket and / or pole plate is provided with penetration holes used for enabling each anti-falling connecting piece to penetrate; and at least one penetration hole and each anti-falling connecting piece have a certain floating gap in a front and back and / or left and right direction to enable each anti-falling connecting piece to swing in the front and back and / or left and right direction. When the charging bow disclosed by the invention is used for charging an aslant-parking vehicle, the pole plate can realize total contact with a vehicle current collectiondevice through swinging in the front and back and / or left and right direction as well as vertical floatation, and therefore, the problem in the prior art that the charging bow and the current collection device of the aslant-parking vehicle can not be in the total contact can be solved.
Owner:ZHENGZHOU YUTONG BUS CO LTD
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