30results about How to "Good water sealing" patented technology

A floor drain (100) comprising a bottom part (4) having at least one discharge opening (5), a front part being integral with the bottom part (4) and having a first part (3b) being inclined to said bottom part at an angle being at least 30°, such as at least 45°, preferably at least 60° more preferably at least 75° and even more preferably about 90° or at least 90° and having a flange part (3a) being horizontal or inclined to horizontal at an angle being less than 20° such as less than 17°, preferably less than 15°, such as less than 10°, more preferably less than 5°, tow side walls (2) integral with said bottom part and said first part, and a back part (1) being integral with said bottom part (4), said back part (1) extending vertically from the bottom part (4), through and above the plane defined by the flange part (3a).

The present invention discloses a through flow type unit water guide mechanism. It includes the following several portions: guide blade, guide blade lower shaft, guide blade arm, sleeve, connecting plate, shearing pin, control ring and internal and external water distribution rings. Said invention also provides the concrete structure of the above-mentioned every portion, and the working principle of said through flow type unit water guide mechanism.

The invention discloses a through-flow water turbine with front and rear symmetrical constant-width movable guide blades. The water turbine comprises a forward water inflow passage, a shaft, a supporting frame, a two-way power generation rotation wheel, a reverse water inflow passage, a power generator and a speed increaser. The water turbine is characterized by further comprising a front constant-width movable guide blade and a rear constant-width movable guide blade. The front constant-width movable guide blade is arranged between the forward water inflow passage and the two-way power generation rotation wheel. The rear constant-width movable guide blade is arranged between the two-way power generation rotation wheel and the reverse water inflow passage. Longitudinal sections of the front constant-width movable guide blade and the rear constant-width movable guide blade are in two-end streamline pointed wing shapes and are arranged symmetrically on the two sides of the two-way power generation rotation wheel. By means of the water turbine, both the forward power generation efficiency and the reverse power generation efficiency of the power generator set can be improved, so that the total power generation efficiency of the power generator set is further improved, and the water turbine is applicable to various low water head tidal power stations.

The invention relates to a double-side guide vane tubular water turbine provided with an elliptical flow channel, which includes a forward water inlet channel, a vertical shaft, a support frame, forward movable guide vanes, two-way power generation runners, and reverse movable guide vanes. . Reverse water inlet channel, generator and speed increaser, characterized in that the forward water inlet channel is a forward elliptical cross-section, the ratio of its minor axis to the major axis is the golden ratio; from the forward water inlet cross-section The ratio of the short axis of the ellipse to the long axis of the water inlet section before the positive movable guide vane section increases linearly; the reverse water inlet channel is a reverse elliptical cross section, and the ratio of the short axis to the long axis is the golden section Ratio; the ratio of the minor axis to the major axis of the ellipse from the reverse water inlet section to the water inlet section in front of the reverse movable guide vane segment increases linearly. The invention can ensure smooth, unobstructed and symmetrical flow of water in the elliptical flow channel, so that the overall power generation efficiency of the unit is further improved, and is suitable for shaft tubular water turbines of various low-head tidal power stations.

The invention provides an efficient-water-purifying high-capacity integrated water tank, belongs to the technical field of integrated water tanks and solves the problem that existing integrated water tanks are low in integration degree and have drainage holes prone to blockage. The efficient-water-purifying high-capacity integrated water tank comprises a water tank body and a cabinet supporting the water tank body, an article platform is arranged on one side of the upper end face of the water tank body, a water purifying faucet, a common water faucet and a soap liquid device are arranged on the article platform, a step-shaped step overlapping platform is arranged at the upper edge of the water tank body, a chopping board and a draining curtain are connected on the step overlapping platform in a clamped manner, an embossed surface layer is arranged on the inner surface of the water tank body uniformly, a double-tank draining device is arranged at the bottom end of the water tank body, a double draining strainer residue isolating device is arranged at a draining hole of the double-tank draining device, a pipeline-type water purifier is arranged on the water purifying faucet, a polypropylene melt-blow filtering core, a softened filtering core, an ultrafiltration membrane filtering core and a postpositive activated carbon filtering core are arranged in the pipeline-type water purifier sequentially, side-opening doors are arranged on the cabinet, a handle is arranged on each side-opening door, and radius of each corner of the water tank body is 10mm.

The present invention provides a body position fixing equipment. It includes a supporting unit, a measurement unit, a control unit and an execution unit, in which the supporting unit at least includesa fluid bag with fluid inlet and fluid outlet, the measurement unit is placed in every fluid bag and is used for measuring pressure in the fluid bag and transferring the obtained measured value to the control unit, the control unit is used for controlling operation of measurement unit and execution unit according to working program, and the execution unit includes a control valve and a fluid container. Besides, said invention also provides a body position fixing method.