57results about How to "Effective spread" patented technology

The invention discloses a multi-branch horizontal well depressurization and heating united mining method for marine hydrates. For the 'congenital' defects that the marine hydrates are distributed in ascattered manner and cannot self flow and get together, based on well type structure improvement of a 'main borehole + a multi-branch horizontal well', an ore body reservoir is hydraulically cut by avertical hydrate layer to improve the hydrate decomposition efficiency and achieve the design objectives of connecting three-dimensional scattered ore bodies and relieving the problems of a large amount of sand, instability of the reservoir and blockage formed by secondary hydrates. The united mining method comprises the following steps: (1) forming a well by a main borehole; (2) drilling a multi-branch horizontal well: forming a plurality of multi-branch horizontal wells, which form a certain included angle and are distributed in a fixed direction, around the main borehole, and arranging thehorizontal wells in the middle region of a hydrate reservoir, wherein joints between the multi-branch horizontal wells and between the multi-branch horizontal wells and the main borehole are all of sleeve and conventional sand control sieve tube structures; (3) performing limited sand control and reservoir supporting; (4) transforming the reservoir by hydraulic jetting; (5) performing heating toprevent blockage.

A jet flow generating apparatus that suppresses noise as much as possible and effectively radiates the heat generated by a heat generating member, an electronic device that is equipped with the jet flow generating apparatus, and a jet flow generating method are provided. According to the present invention, a jet flow generating apparatus comprises a plurality of chambers each having an opening and each containing a coolant, a vibrating mechanism for vibrating the coolant contained in each of the plurality of chambers so as to discharge the coolant as a pulsating flow through the openings, and a control unit for controlling the vibration of the vibrating mechanism so that the sound waves generated by the coolant discharged from the plurality of chambers weaken each other.

To provide a mold that can be brought to a temperature in a predetermined temperature range in a short amount of time, and that is designed to allow the releasing component of a mold releasing agent to be easily spread effectively on an inner surface of the mold, and to reduce the amount of mold releasing agent used. A low-density region of a predetermined thickness is formed along the inner surface of the mold that comes in contact with the molded article, and then, along the inner surface of the mold, a liquid path composed of a hollow tube is formed in contact with the low-density region. It is preferable that a density of the low-density region is higher in a position near an outer surface of the mold than in a position in contact with the liquid path and the low-density region and thehigh-density region are arranged side by side.

A high-performance aluminum section radiator includes a top plate and a base. The top plate is provided with positioning ribs, first heat dissipation flangings, second heat dissipation flangings, andheat dissipation columns; the base includes a base plate and a side plate, the top of the base plate is provided with two limit strips, the inside surface of the side plate has a curved surface, the outside surface is flat, the outside surface of the side plate is provided with side heat dissipation strips, the top center of the side plate is provided with grooves, and the grooves are square grooves. Each groove has a long strip structure, and the sizes and shapes of the grooves correspond to the positioning ribs; the two sides of the top of the side plate are provided with snap-fit flangings.The both sides and the top of the top plate are all provided with a heat dissipation structure, and the heat dissipation efficiency is high. The base structure is special, and the inner side wall ofthe effective side plate adopts a special curved structure, which can increase the heat dissipation area and improve the heat dissipation performance. The plurality of side heat dissipation strips arearranged on the outer side. The trapezoidal side structure has a larger heat dissipation area than the ordinary square heat dissipation strips do, and has a large contact area with air, and has a good heat dissipation effect.

The invention discloses a preparation method of chitosan modified starch impregnating compound. The preparation method is characterized in that the preparation method comprises the following steps: taking 9-18 parts by mass of raw starch to a reaction container, and adding 300 parts by mass of water; stirring and raising temperature to 90 DEG C; pasting for 1 hour and obtaining starch paste; taking 1-3 parts by mass of chitosan in the starch paste, and orderly adding 0.1-0.6 parts by mass of cross-linking agent, 0.1-0.6 parts by weight of plasticizer, 0.2 parts by weight of polyving akohol, 0.2 parts by weight of sodium sulfate and 0.1 parts by weight of Twain 60 under the condition of stirring, and obtaining a mixture; reacting the mixture at 90 DEG C for 1-5 hours, cooling to room temperature, and placing for 2 hours; defoaming, and obtaining the chitosan modified starch impregnating compound. By adopting the preparation method of the chitosan modified starch impregnating compound, the technique is simple and cost is low; the product can be directly applied to wiredrawing production of glass fiber tank furnace, glass fiber textile processing, and other domains; the using effect is good.