Venturi self-suction self-cleaning valve device

Abstract

The invention discloses a venturi self-suction self-cleaning valve device. The device comprises a valve body and a self-cleaning device; the self-cleaning device is arranged on the valve body; the self-cleaning device comprises a venturi, a feeding device and a collecting device; one end of the venturi is connected with the feeding device, and the other end of the venturi is connected with the collecting device through a cap; the feeding device comprises a section shrinkage block arranged on the inner wall of an inlet pipe; a shrinkage feeding hole, connected with the venturi, is arranged in the section shrinkage block; the collecting device comprises a collecting cavity; and a separation stopper is arranged at the top, positioned on one side of the inlet pipe, of the collecting cavity. The venturi self-suction self-cleaning valve device is simple in structure, can realize self-circulation and continuous cleaning, and can use different cleaning mediums for cleaning.

Description

Technical field: [0001] The invention relates to the field of valves, in particular to a Venturi self-priming self-cleaning valve device. Background technique: [0002] A valve is a control component in a fluid delivery system, which has functions such as cut-off, regulation, flow diversion, reverse flow prevention, pressure stabilization, flow diversion, or overflow pressure relief. [0003] Valves used in fluid control systems range from the simplest shut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-s...

AI Technical Summary

Problems solved by technology

[0004] During long-term use, due to the presence of various impurities in the fluid in the pipeline, a large amount of scaling is likely to occur on the valve, which will affect the fluid passing capacity and sealing performance of the valve, and even affect the service life of the valve

There is no diversion groove on the spool of the valve in the existing market, and small particles such as welding slag in the fluid cannot pass through. If accumulated for a long time, it is prone to blockage, resulting in a short service life of the valve.

[0005] At present, the cleaning of valves is usually carried out by disassembling the valves and sending them to special cleaning facilities for cleaning. However, the valves on many pipelines are huge in size, with a mass of 20kg or even more than 50kg, which makes the cost of valve disassembly and cleaning high, and valve disassembly After that, it will affect production and generate new production costs

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