Parallel type venturi tube cavitation device
A Venturi and parallel technology, applied in the direction of mechanical oscillation water/sewage treatment, etc., can solve the problems of insignificant cavitation effect, large energy loss and poor applicability.
Inactive Publication Date: 2017-11-03
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
[0006] The present invention aims to provide a parallel venturi tube cavitation device, which is used to solve the problems of unobvious cavitation effect, unstable equipment performance, large energy loss, and poor applicability in the current Venturi tube cavitation device. series of questions
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[0014] The present invention will be further described below in conjunction with the accompanying drawings:
[0015] This parallel Venturi cavitation device is composed of bolt holes 1 , flanges 2 , fluid inlet 3 , constriction section 4 , fish mouth 5 , throat 6 , diffusion section 7 , and fluid outlet 8 . Among them, the flange 2 is used to connect the venturi tube and the venturi tube or between the venturi tube and the trunk pipeline; the fish mouth 5 divides the throat 6 into upper and lower parts, and the upper and lower throats are connected in parallel; the contraction section 4, the diffusion Section 7 Pipe diameter gradient.
[0016] During operation, water enters from the fluid inlet 3, and then flows through the constriction section 4, the throat 6, the diffusion section 7, and the fluid outlet 8 in sequence. In the shrinking section 4, due to the gradual reduction of the pipe diameter, the flow rate of the water is gradually accelerated, so the pressure will alwa...
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The invention discloses a parallel type venturi tube cavitation device, which is composed of bolt holes, a flange plate, a fluid inlet, a contraction section, a fish mouth type dividing dike, a throat, an expansion section and a fluid outlet. The fish mouth type dividing dike divides the throat into two parts up and down, so that the water flow velocity of the upper and lower parts of the throat is faster, the throttling effect is good, and the cavitation phenomenon is obvious. A part between venturi tubes or between the venturi tube and a main pipeline is connected by the flange plate, so that the pipeline sealing effect is good, and the leakage probability is greatly reduced during a water flow oscillation process. The pipe diameter of the contraction section and the expansion section are gradually changed, so that energy loss caused by throttling in the venturi tube is reduced during a flow process. The parallel type venturi tube cavitation device has the advantages that the researched content is relatively wide and the applicability is relatively high.
Description
technical field [0001] The invention relates to the technical field of hydraulic cavitation, in particular to a parallel type Venturi tube cavitation device. Background technique [0002] In the field of hydraulic cavitation technology, when the local pressure in the liquid decreases, the process of formation, development and collapse of gas cavities (cavities) inside the liquid or at the liquid-solid interface is called "cavitation". In the process of cavitation, cavitation bubbles are rapidly generated, expanded and collapsed, and shock waves or high-speed micro-jets will be formed in the liquid. At present, marine propellers, rudders, hydrofoils, underwater weapons, water pumps, turbines, high-speed culverts, gate grooves, liquid rocket pumps, diesel engine cylinder liners, etc. all encounter cavitation problems, resulting in reduced efficiency and material erosion. Therefore, cavitation is a hot topic at this stage. [0003] At present, the experimental equipment for s...
Claims
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Login to View More IPC IPC(8): C02F1/34
CPCC02F1/34
Inventor 罗志锋余洋赵立强
Owner SOUTHWEST PETROLEUM UNIV