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79results about How to "Increase outflow" patented technology

Double-wall cooling structure having longitudinal corrugated impact hole plate for thrust-vectoring nozzle

In the invention, a longitudinal corrugated impact pore plate and a flat plate type air film plate are used to constitute a double-wall cooling structure. Impact holes and air film holes are distributed in a staggered manner respectively; impact holes are formed in wave troughs of the corrugated impact hole plate and air film holes in the air film hole plate directly face wave peaks of the corrugated impact hole plate; and each of the corrugated impact pore plate and the air film hole plate is a plurality of unit period structures in the axial direction. A relatively small impact distance is formed between the wave trough and the air film hole plate, so that the heat exchange by impact may be increased; a relatively larger space may be formed between the wave peak and the air film hole plate, full development of cool air flowing is facilitated, outflowing is facilitated, the flow resistance may be reduced, the utilization ratio of cold air is increased and the contradiction between themethod of impact distance reduction for heat exchange enhancement and the method of impact distance increase for flow resistance reduction is solved; and meanwhile, the air film plate is a flat plate, so that air film attachment is facilitated to form effective heat protection, heat stress is reduced and the problem of uneven heat stress of a corrugated heat shield is solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Water self-supplying agricultural greenhouse system

The invention belongs to the technical field of agricultural greenhouses, and specifically discloses a water self-supplying agricultural greenhouse system. The system includes an optical system disposed in the greenhouse, a water generating system disposed on one side of the optical system and a blower connected with the water generating system, wherein the optical system includes a Fresnel lens,a first concave lens disposed at the condensing point of the Fresnel lens and solar limited-frequency reflecting glass disposed under the first concave lens, and the water generating system comprisesan insulating layer, a selective absorbing coating and a moisture adsorbing layer; the moisture adsorbing layer includes a adsorbent material layer and a metal thermally conductive rod, and the insulating layer is transmissive to infrared light reflected by the solar limited-frequency reflecting glass. Through the system, gradient utilization of sunlight is realized, cleanness and environmental protection can be achieved, consumption of non-renewable energy is reduced, and meanwhile the water self-supplying function of the greenhouse can be achieved; in a water-deficient area, not only agricultural water can be provided, but also supplementing of domestic water can be achieved, so that the problem of water shortage is alleviated.
Owner:HUAZHONG UNIV OF SCI & TECH

Multi-layer water heating device

ActiveCN104913491AMeet the needs of large drinking volumeIncrease outflowWater heatersWater sourceWater storage tank
The invention discloses a multi-layer water heating device, which comprises a water outlet pipeline, a bottom layer water boiling tank, a middle water transfer tank and a high layer water storage tank, wherein the middle water transfer tank is respectively provided with a water supply mouth and a water outlet mouth; the water supply mouth is located above the water outlet mouth; the water supply mouth is connected to the high layer water storage tank; the water outlet mouth is connected to the bottom layer water boiling tank; and one end of the water outlet pipeline is set on the bottom layer water boiling tank and extends to an inner cavity bottom wall next to the bottom layer water boiling tank, and the other end thereof extends outside the water boiling tank. According to the invention, three-layer structure from up to down is utilized; water in the high layer water storage tank at the upper most layer flows again into the bottom layer water storage tank through the middle water transfer tank and the water is heated; water flows freely from up to down, so complex structures like a water pump and water balance tank are avoided; the whole structure of the product is simpler and reasonable; further, boiled water in the bottom layer water boiling tank is discharged from the water outlet pipeline for drinking; the water is supplied to the water boiling tank by the middle water transfer tank; after the water inside the water boiling tank is boiled, the water is discharged from the water outlet pipeline, thus the hot water output volume is ensured to be large enough; and the requirement of large amount drinking is satisfied.
Owner:FOSHAN FOUR SEASONS TEA SET CO LTD

Low-pressure pipeline water-delivering irrigation water outlet

The invention provides a Low-pressure pipeline water-delivering irrigation water outlet. The Low-pressure pipeline water-delivering irrigation water outlet comprises a lower-part base, an upper-part tank and a draining water stilling pool, wherein a vertical pipe is contained in the center of the lower base and is provided with the upper-part tank; a base-plate water inlet communicated with the vertical pipe is arranged at the bottom of the upper-part tank; two hinged supporting bases which are fixed by a fastening bolt are arranged on a bottom wall of the upper-part tank on one side of the base-plate water inlet; a turning cover plate covering the base-plate water inlet is connected with the hinged supporting bases; a circle of water-stopping rubber sheet is stuck to an upstream side of the turning cover plate; a manual screw-rod opening-closing device is mounted on a top surface of the upper-part tank and is connected with the turning cover plate through a hinge connecting rod; a water outlet is arranged on a side wall of the upper-part tank; and the draining water stilling pool with flow-measuring scales is mounted on one side of the water outlet, adjacent to the lower-part base. The low-pressure pipeline water-delivering irrigation water outlet can meet the mass flow requirements, and is low in interior water head loss, and is capable of dissipating energy, preventing erosion, quantitatively controlling the flow of drained water and promoting the uniformity of irrigation water.
Owner:YANGZHOU UNIV
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