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560results about How to "Guaranteed long-term operation" patented technology

Fatigue test sample clamp with high temperature resistance, high pressure resistance and aqueous corrosion resistance and usage method thereof

The invention belongs to the material test technical field, to be more exactly, relates to a fatigue test sample clamp with high temperature resistance, high pressure resistance and aqueous corrosion resistance and an usage method thereof, which solves the problems of high temperature irresistance, high pressure irresistance, aqueous corrosion, large screw thread slit and poor centering in the current sample clamp. The clamp is provided with a column, a platform, an upper press cap, a lower press cap and a conversion adapter; the lower part of the column of the clamp is fixed on a cover of anautoclave, the upper part of the column of the clamp is fixed on the platform, and respectively and tightly pressed by lock nuts, the lower part of the conversion adapter is connected with a stretching shaft of a fatigue machine, through elevating the stretching shaft, an upper convex plate and a lower convex plate of the test sample are respectively placed in a platform groove and a conversion adapter groove, two dimidiate semirings are pressed on upper convex plate and the lower convex plate of the test sample, the upper press cap and the lower press cap are sleeved, the press cap bolts arescrewed for fixing two ends. The fatigue test sample clamp can be used in the autoclave for carrying out various fatigue tests (stress-stress, stress-tension, tension-tension and the like) under the high temperature high pressure solution environment, and has the advantages of simple structure and low cost.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Multipath circulating fluidized bed boiler

The invention discloses a multipath circulating fluidized bed boiler, which comprises a main combustion chamber, an auxiliary combustion chamber and an ash chamber which are parallel to the main combustion chamber, a tail flue, and a coal economizer and a centrifugal separator arranged in the tail flue; the bottom of the auxiliary combustion chamber is inclined to the ash chamber and the inclination angle alpha is between 30 and 60 degrees; the bottom of the ash chamber is inclined to the auxiliary combustion chamber and the inclination angle beta is between 45 and 75 degrees; a material falling passage is reserved between the bottom surface of the ash chamber and the bottom surface of the auxiliary combustion chamber; an asymmetrical inertia separation circulating device is formed by the bottom surfaces of the mutually inclined auxiliary combustion chamber, an inclined plate I and an inclined plate II fixed on the two sides, and the material falling passage; a flow area of the bottom of the ash chamber A2 is no more than half of a flow area A1 of the bottom of the auxiliary combustion chamber; and the bottom surface of the ash chamber is provided with a loose blast cap. The multipath circulating fluidized bed boiler can ensure the smooth conveying of materials and the required material separating amount, prevent the materials from accumulating on the bottom of the combustion chambers for a long time, and ensure smooth circulating, so that a combustion device normally operates for a long term.
Owner:TSINGHUA UNIV +1

Electronic product film sticking machine

The invention relates to an electronic product film sticking machine which comprises a base plate, a mechanical hand, a correction mechanism, a conveying mechanism, a film taking and sticking mechanism, an inner and outer layer rolling material separating mechanism and a film rolling mechanism. The mechanical hand sucks up electronic products from an assembly line, the electronic products are placed on the correction mechanism firstly, the conveying mechanism is arranged below the correction mechanism, after the positions of the electronic products are corrected, a suction cup on an R-axis mechanism of the conveying mechanism sucks up the electronic products, the electronic products reach the lower portion of the film taking and sticking mechanism under guidance of an X-axis mechanism, a Y-axis mechanism and a Z-axis mechanism, the inner and outer layer rolling material separating mechanism is driven by a motor to separate films and film sticking paper by a strip bar and stick the films and the film sticking paper on the film taking and sticking mechanism at the moment, then the suction cup of the conveying mechanism drives the products, a film on the parallel side is firstly stuck on the film taking and sticking mechanism, then, the film on the other parallel side is stuck, after sticking, the mechanical hand sucks up the products again, the products are conveyed to the film rolling mechanism, the film rolling mechanism rolls the films stuck well to be flat from four sides, and finally the mechanical hand takes the film stuck out of the film rolling mechanism.
Owner:BOZHON PRECISION IND TECH CO LTD

High-temperature crude synthesis gas chilling device

The invention relates to a high-temperature crude synthesis gas chilling device, which comprises a gas flow channel of a chiller and an atomizing nozzle arranged on the side wall of the gas flow channel, wherein the gas flow channel is connected with a reaction chamber and a cooling chamber of a gasification furnace and provides a mixing space for a chilling medium and high-temperature crude synthesis gas; the atomizing nozzle is a single-flow-channel pressure nozzle or a double-flow-channel gas-liquid two-phase nozzle, and is partitioned into 1-20 layers; each layer is uniformly distributed on the circumference and is used for uniformly spraying the chilling medium into the high-temperature crude synthesis gas and chilling the synthesis gas to be in a specific temperature range; the gas flow channel is a water cooled-wall or a fire-resistant and wear-resistant liner or the combination of the water-cooled wall and the fire-resistant and wear-resistant liner; and the gas flow channel has a cylindrical structure or a conical structure or the combination of the cylindrical structure and the conical structure. The chilling device has the advantages of high chilling efficiency, large gas-liquid contact area, high chilling rate, small dosage of the chilling medium, mature manufacturing technology, high reliability and capability of reducing the consumption and the discharge of cleaning black water, and relates to an environmentally-friendly and-energy saving technology.
Owner:WISON ENG

Poly-generation process for pyrolyzing solid thermal carrier via low-rank coal vibration bed

The invention provides a poly-generation process for pyrolyzing a solid thermal carrier via a low-rank coal vibration bed. The process flow is as follows: mixing and retorting coal powder and a high-temperature solid thermal carrier in a vibration carbonization bed; introducing crude gas generated in the retorting process into a gas purification section; carrying out tar deep processing and asphalt modification on the separated tar to prepare crude phenol, an asphalt binder and the like; and carrying out formation and ball pressing on a retorted product powder semi-coke and the asphalt binder as well as other additives, and secondarily carbonizing to prepare a formed coke. In the process provided by the invention, a burning or oxidization phenomenon is not generated during the period of retorting; the product powder semi-coke is low in ash content, high in gas thermal value and high in useful component; the relative motion speed of the solid thermal carrier and the coal powder is small; crude gas does not carry fine coke particles, thereby avoiding adhesion of tar and fine particles on the inner wall of a pipeline and ensuring the long-term operation of a system; and the solid thermal carrier is surrounded by the powder coal, the probabilities of friction and collision between the solid thermal carriers are reduced, and the service life is prolonged. The process provided by the invention is the poly-generation process for pyrolyzing the solid thermal carrier via the low-rank coal vibration bed, and the poly-generation process is practicable in the aspects of technology, materials, cost and the like.
Owner:CHINA UNIV OF MINING & TECH
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