57results about How to "Reduce lay length" patented technology

This invention discloses a type of optical cable wiring system, including: a main optical cable, first optical cable connector box and optical cable fan-out disposed near a first user zone; a second optical cable connector box disposed at a distance from the first user zone and near a second user zone; and a single main adapter optical cable disposed between the first optical cable connector box and second optical cable connector box. An optical cable fan-out converts a single main adapter optical cable to multiple branch adapter optical cables. Multiple branch adapter optical cables are connected to the main optical cable via a first optical cable connector box; multiple first distribution optical cables for the purpose of connection to a first user zone are connected to a main optical cable via a first optical cable connector box; multiple first distribution optical cables for the purpose of connection to a second user zone are connected to a single main adapter optical cable via a second optical cable connector box. In this manner, it becomes unnecessary to lay multiple second distribution optical cables over long distances between the first user zone and second user zone, thus reducing the laying length of second distribution optical cables, reducing material and labor costs, and additionally improving municipal aesthetics.

The invention discloses a low-turbulence compact circulating water tunnel experimental device, comprising a water tank (1), a centrifugal pump (7), and a porous plate (2) and a honeycomb screen (3) which are disposed in the water tank (1). The water tank (1) has a water inlet at the upper part and a water outlet at the lower part at the same side. The porous plate (2) is installed between the water inlet and the water outlet. The honeycomb screen (3) is installed at the water outlet, and has an outlet successively connected a contraction section (4), an experimental section (5) and an expansion section (6). The outlet of the expansion section (6) is connected to the inlet of the centrifugal pump (7). The outlet of the centrifugal pump (7) is successively connected with a backflow section(8), a round-to-square section (9) and a diverging section (10). The outlet of the diverging section (10) is connected to the water inlet of the water tank (1). The hydrodynamic design used by the invention greatly reduces the turbulence of a flow field in the experimental section. The whole experimental device has a compact structure, a small occupied space and low manufacturing cost, which greatly improves the applicability of the water tunnel experimental device.

The invention provides a plugging-connection charging type lifting transverse-moving stereo garage comprising a lifting transverse-moving stereo garage body, a plugging-connection charging device anda charging control box. The plugging-connection charging device comprises charging plugs and a charging gun; the charging plugs comprise the first charging plugs, the second charging plugs and the third charging plugs; the first charging plugs are mounted on a second-layer vehicle carrying plate upwards; the second charging plugs are mounted on a garage frame downwards; the third charging plugs are mounted on a first-layer vehicle carrying plate; when the second-layer vehicle carrying plate falls or rises, the first charging plugs and the second charging plugs are separated or make contact, and accordingly a second-layer charging circuit is switched off or switched on; the second charging plugs and the third charging plugs are connected with the charging control box, the charging control box is connected with an external power source, and the first-layer charging circuit is switched on all the time. The charging type lifting transverse-moving stereo garage is simple and reliable in structure, the laying length and the laying number of cables are decreased while charging parking places are expanded, the charging cost is reduced, and an existing charging type lifting transverse-moving stereo garage is improved.

The present invention discloses configuration method of coal gas station for alumina plant. The configuration method of coal gas station includes coal gas generating sets concentrated in one end of the plant and arranged in two rows, coal storages concentrated in the other end of the plant and arranged in one row, one combined coal conveying belt between the coal gas generating sets and the coal storages, two combined coal conveying belts in the coal storages, three-port transfer stations to connect these three combined coal conveying belts, and coal conveying belts to connect each of the coal gas generating sets or coal storages to nearest four-port transfer station or three-port transfer station. The present invention has lowered engineering cost and running cost, saving in land and good alumina plant environment.

The invention provides a material mixing line, which belongs to the technical field of machinery. The mixing line includes the frame, the forage breaking mechanism, the main conveyor belt set on the frame, the mixing mechanism and the auxiliary material breaking mechanism all set on the main conveyor belt. The main conveyor belt is composed of a horizontal section and an inclined section. , the horizontal section and the inclined section are continuously distributed along the conveying direction of the main conveyor belt, and the inclined section is set obliquely upward relative to the horizontal section; The three are distributed sequentially along the conveying direction of the main conveyor belt. The outlets of the forage dispersing mechanism and the auxiliary material dispersing mechanism are respectively located directly above the belt surface of the horizontal section and the belt surface of the inclined section. The mixing mechanism is arranged on the inclined section. There is also a second side conveyor belt arranged obliquely upward, the second side conveyor belt and the forage breaking mechanism are on the same side, and the second side conveyor belt can transport the auxiliary materials to the feeding port of the auxiliary material breaking mechanism. The length of the mixing line is relatively short.

The invention discloses a collocation method for factory combining factory building. One end of every workshop (1) is provided with a transfer station (3). The transfer stations (4) of the two workshops are connected together by an overhead cableway (2). Roads (4) are between the two workshops. In the collocation method, the workshops are connected into one whole by the transfer stations and by the overhead cableway; goods are transported to required workshops by air transportation; in this manner, the layout is compact, thus saving region land area, paving area of roads, laying length of pipenetworks, and the transportation of the goods is not restricted by road grade.