Small high-pressure water self-rotating cleaning nozzle

Abstract

Provided is a small high-pressure-water self-rotation cleaning nozzle. The small high-pressure-water self-rotation cleaning nozzle is mainly used for cleaning off scales and dirt of a tube pass of a heat exchanger. The internal structure of the small high-pressure-water self-rotation cleaning nozzle is simple and unique. Structurally, a hollow stepped rotary shaft penetrates through a stepped airtight shell. A water inlet connector is screwed into a threaded hole in the rear end of the stepped airtight shell, wherein a sealing rod is arranged at the front end of the water inlet connector. A cleaning head is connected with the front end of the stepped rotary shaft through threads. A through hole is drilled in the middle of the stepped rotary shaft. When flowing into an inner bore of the rotary shaft through the water inlet connector, high-pressure water enters a gap sealing area through the through hole in the middle of the rotary shaft, wherein the gap sealing area is formed by an inner bore of the stepped airtight shell and the outer circle of the stepped rotary shaft. An eccentric hole is drilled in the cleaning head, the cleaning head and the rotary shaft rotate immediately when the high-pressure water flows through the hollow rotary shaft and is ejected through the eccentric hole in the cleaning head, and the function of efficiently cleaning off dirt and filth on tube walls of the heat exchanger is achieved.

Description

technical field [0001] The invention relates to a small high-pressure water self-rotating cleaning nozzle, which belongs to the technical field of industrial cleaning. The product is mainly used in the high-pressure water cleaning industry for scabbing and dirt cleaning of various heat exchanger tubes. Background technique [0002] The industrial development of China's industrial cleaning industry started in the 1980s, far behind developed countries such as Europe and the United States with a history of nearly a hundred years, and initially focused on chemical cleaning. With the acceleration of my country's reform and opening up and the pace of modernization, and the strengthening of people's awareness of environmental protection, the high-pressure water jet cleaning process is being accepted by more and more companies. There are three main reasons: (1) Fast cleaning speed, (2) Good cleaning effect, (3) No secondary pollution after cleaning. [0003] The small high-pressure ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: too high speed, too much noise, short service life and cannot be repaired after wear (disposable product)

The core part of the product of the American company adopts the cone surface gap seal, which has a small structure, but it also has the following disadvantages: ①The cone surface gap changes with the actual working pressure. Once the larger diameter dirt particles enter the cone surface sealing area, the rotating shaft is blocked. If it is stuck, the cleaning head will not rotate normally; ②The speed is still too fast and the leakage is large; ③The service life is short and the price is expensive

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