32results about How to "In line with the law of flow" patented technology

The invention provides an ecologically-friendly type axial flow pump structure for fishes to pass through. The ecologically-friendly type axial flow pump structure comprises axial flow pump blades, an impeller hub, a runner chamber, a guide vane hub and guide vane blades. One end of each guide vane blade is connected with the guide vane hub, and the other end of each guide vane blade is connected with a guide vane section pipeline. Blade inlet edges of the axial flow pump sweep forward in the rotating direction and downwards extend in the axial direction to form streamlines, and the wing-section heads of the sections of the axial flow pump blades are semicircular arcs. The radial radius of the impeller hub is gradually increased and then is gradually reduced in the liquid flow direction, and the radial radius of the blade inlet edges is maximal. A circular ring is welded to the inlet of the runner chamber. The number of the guide vane blades is not larger than five, and the guide vane inlet edges are the streamlines. A large space is formed by the guide vane inlet edges and blade outlet edges. According to the axial flow pump structure, the probability that the blades collide with the fishes can be greatly reduced, meanwhile, the death rate of the fishes after the fishes are impacted by the blades is reduced, and therefore the survival rate of the fishes is greatly increased, and various fishes can pass through the axial flow pump suitable for large-and-medium pump stations.

The invention discloses a steam dust collector, which comprises a base, a shell and a fan, wherein an air inlet is formed in the base; the shell is arranged on the base and air vents are formed in the sidewalls of the shell; an eddy current air duct is defined between the bottom wall of the shell and the base; the air inlet communicates with fluid in the eddy current air duct; the fan is arranged in the shell and comprises a motor and a heat radiating wind wheel which is connected to the lower end of a motor shaft of the motor, wherein the eddy current air duct is such configured that air entering from the air inlet is guided to the heat radiating wind wheel so as to radiate heat of the motor. According to the steam dust collector disclosed by the invention, by defining the eddy current air duct, which has functions of collecting flow and offering circumferential circulation before the air flows to the fan, between the shell and the base, the air can circulate in the eddy current air duct in a mode of gradually contracting. Therefore, the steam dust collector is conducive to air circulation towards the heat radiating wind wheel, so that the heat-radiating air is more aligned with flow regularity, and air circulation is promoted.

The invention relates to a full automatic steam food boiling device, comprising a material boiler, a steam generator, a water tank, a valve, a water pipe and material suppliers; each material supplier comprises a material storeroom, a supplying control mechanism and a material pipe; the material storerooms of all the material suppliers are connected with a charging port by the material pipes; the supplying control mechanisms are arranged on the material pipes between the material storerooms and the charging port; the water tank, the steam generator and the lower part of the material boiler are sequentially connected by the water pipe. The upper part of the material boiler is connected with the upper part of the water tank by the water pipe; the valve is arranged on the water pipe between the water tank and the steam generator. Materials are directly boiled by adopting high temperature steam, the utilization rate of the steam is high and a greater energy-saving effect is realized; the high temperature steam is input from the lower end and achieves a stirring action, so the materials are more uniformly heated, the heat transfer is accelerated, the boiling time is shortened and the food boiling device is suitable for the fast food industry; the steam is collected into the water tank for reuse instead of being directly discharged to avoid air pollution and greater environment-friendly and sanitary effects are achieved.