Jet pump capable of automatically and uniformly supplying air to reduce erosion

Abstract

The invention discloses a jet pump capable of automatically and uniformly supplying air to reduce erosion, and relates to the field of jet pumps. The jet pump capable of automatically and uniformly supplying the air to reduce erosion comprises a water suction pipe, a suction chamber, a throat pipe inlet section, a throat pipe, a diffusion pipe, a water outlet pipe, a working water pipe, a nozzle,and a circumferential uniform air groove, wherein the circumferential uniform air groove comprises a cone cylinder and an annular end plate; the cone cylinder and the throat pipe are concentrically arranged; the cone cylinder is sealedly connected onto the throat pipe in a sleeving way; an outer conical surface of the throat pipe inlet section is parallel to an inner conical surface of the cone cylinder; a circumferential uniform air channel is formed between the outer conical surface of the throat pipe inlet section and the inner conical surface of the cone cylinder; multiple air doping holescommunicating with the circumferential uniform air channel are formed in the throat pipe in a circumferentially uniform distribution way; the outer circumferential side wall of an annular end plate is connected with the cone cylinder in a sealing way; the inner circumferential side wall of the annular end plate is connected with the outer wall of the throat pipe inlet section in a sealing way; and multiple air inlet holes communicating with the circumferential uniform air channel are formed in the annular end plate in a circumferentially uniform distribution way. The jet pump can be used forautomatically, symmetrically and uniformly supplying the air into the throat pipe of the jet pump, so that the harm caused by the cavitation erosion of the jet pump is reduced, the efficiency of the jet pump is improved, and meanwhile, the device is simple in structure, low in cost, and convenient and fast to use.

Description

technical field [0001] The invention relates to the field of jet pumps, in particular to a jet pump for automatically and uniformly replenishing air and reducing corrosion. Background technique [0002] The jet pump is a kind of fluid conveying machinery and mixed reaction equipment that uses high-speed fluid as the working fluid and uses jet turbulent diffusion to transfer energy and mass. In the prior art, conventional jet pumps are generally formed by connecting working water pipes, suction chambers, water suction pipes, nozzles, throat pipes, diffusion sections, and water outlet pipes. When it is working, the high-pressure working fluid is ejected through the nozzle, and the pressure energy is converted into kinetic energy to make the fluid at the outlet of the nozzle in a high-speed and low-pressure state, and the high-speed and low-pressure fluid will be sucked into the jet pump by the suction fluid. Due to the different flow velocities of the working fluid and the su...

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