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78results about How to "Inhibition continues" patented technology

Complex flow-path heat exchanger having U-shaped tube and cantilever combined coil

A complex flow-path heat exchanger having U-shaped tube and cantilever combined coil, which can achieve, in this type heat exchanger, a simple construction, a complex flow of steam within the same one heat exchange shell body, a high heat exchange efficiency, and a low energy loss. The technical gift of the present invention is that, after entering into the heat exchanger, steam firstly effects heat exchange on the U-shaped tube flow path shell side to be cooled and condensed, thereafter entering into flow path tube side of the cantilever combined coil, which are disposed within the same one shell, for a secondary heat exchange, and subsequently flowing out of the heat exchanger after being subcooled. Such steam-water heat exchanger having a complex flow path are advantageous in a small steam flow resistance of the U-shaped tube flow path shell side; a higher condensate water flow velocity in the cantilever combined coils flow path tube; a high heat exchange coefficient; good coordination of the temperature difference fields of the hot and cold fluids in the heat exchanger; and a high heat exchange efficiency. Therefore, the present heat exchanger can be a new generation product relative to the currently-used conventional low-temperature, low-pressure and corrosion-free heat exchangers.
Owner:SHANDONG UNIV

Red-bed rock slope flexible comprehensive support structure and construction method thereof

ActiveCN109208617AReduce disturbanceRealize advanced reinforcementExcavationsBulkheads/pilesPre stressRock bolt
The invention discloses a red-bed rock slope flexible comprehensive support structure and a construction method thereof. The flexible comprehensive support structure comprises a pre-grouting reinforcement structure before excavation, an anchoring grouting reinforcement structure after excavation, a slope surface normal prestressing reinforcement structure and micro anti-slide piles. In the construction method, before graded excavation of the slope, after reinforcement grouting is carried out on the slope in the grade, secondary slope excavation construction is then carried out; anchor rods oranchor cables are adopted to carry out grouting anchoring on a drilled hole in adjacent interlayered rock strata, prestressing ropes are arranged between the end parts of the anchor rods or the anchorcables, a rope net forming prestressing pressure on the slope surface is additionally suspended between the ropes, an ecological protective layer is formed through spraying borrowed soil on the slopesurface; and the micro anti-slide piles are arranged at the foot of the slope, and filter capillary drainage pipes are arranged in the slope body. The structure and the method disclosed in the invention are suitable for reinforcement for the red-bed rock slope and other rock slopes with similar geological characteristics, solve the technical problem that the red-bed slope is hard to effectively reinforce, and have the advantages of low cost, fast construction speed, small construction disturbance, good construction safety and good environmental protection.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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