High-pressure descaling spray head

A nozzle and high-pressure technology, applied in the direction of spray guns, explosion generating devices, abrasives, etc., can solve the problems of difficulty in cleaning the rust removal site, easy wear of the inner wall of the nozzle, and difficulty in recycling sandblasting, etc., to achieve enhanced and guaranteed rust removal effects , to prevent the effect of vision

Active Publication Date: 2020-01-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to overcome the problems of the prior art that sandblasting is difficult to recycle, the cleaning site of rust removal is difficult, and the environment is seriously polluted; the inner wall of the nozzle is easy to wear and the service life is

Method used

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  • High-pressure descaling spray head
  • High-pressure descaling spray head

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] Such as figure 1 In the illustrated embodiment 1, a high-pressure rust removing spray head includes a spray head body 1, an impact member 2 and an outer spray head 3. The outer wall of the spray head body 1 is provided with a through hole 12, the spray head body 1 is covered with an outer spray head 3, the spray head body 1 is threaded with the outer spray head 3, and the cavity 31 inside the outer spray head 3 communicates with the inner cavity of the spray head body 1 through the through hole 12, The cavity 31 of the outer spray head 3 is annular and has a tapered cross section. The outer side of the nozzle body is close to the water outlet, and a fixed ring 22 is sleeved between the nozzle body and the outer nozzle. The fixed ring 22 is fixed with a uniformly distributed tension spring 21. One end of the tension spring 21 is connected with the fixed ring, and the other end is fixed with an impact Part 2, the impact part is made of steel balls, the te...

Example Embodiment

[0038] Example 2

[0039] Such as figure 2 In the illustrated embodiment 2, a high-pressure rust removing spray head includes a spray head body 1, an impact member 2 and a diffusion cover 4. The front end of the nozzle body 1 is covered with a horn-shaped diffuser 4, one end of the diffuser 4 is threadedly connected with the sneeze body 1, and the open end of the other end is connected with a number of parallel elastic cords 41, which are parallel to the radial direction of the diffuser 4 The two ends of the elastic rope 41 are connected to the inner wall of the diffuser 4, the middle part of the elastic rope 41 is connected with an impact member 2 which is a steel ball, and the steel balls on different elastic ropes are staggered.

[0040] When the nozzle is working, the high-pressure rust removal liquid flows out of the nozzle body 1, diffuses and sprays out through the diffusion cover 4, and at the same time drives the steel ball to rush out, hitting the surface of the ship. W...

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Abstract

The invention relates to a high-pressure descaling spray head which comprises a spray head body. At least one impacting piece is arranged at a water outlet of the spray head body and is connected withthe spray head body through an elastic piece, and the impacting piece is arranged in the range of jet of high-pressure liquid. The impacting piece does a reciprocating motion parallel to the axial direction of the spray head body with the action of the high-pressure liquid and the elastic piece. The high-pressure descaling spray head solves the problems in the prior art that a descaling site is difficult to clean, the environment is polluted seriously, the inner wall of the spray head is easy to wear, and the service life is long. The high-pressure descaling spray head has the following beneficial effects that recycling abrasives and cleaning the site are not needed, the descaling cost is saved, the descaling effect is ensured while the spray head is more environmentally friendly, the service life is prolonged, the water outlet area is expanded, and water mist is prevented from being reversely sprayed so as to not harm a user or affect the vision of the user.

Description

technical field [0001] The invention relates to the technical field of ship maintenance, in particular to a high-pressure derusting nozzle. Background technique [0002] Ship surface treatment is the first step in ship painting, and it is also an important step to maintain the performance of ship steel plate materials. According to the statistical results, the following factors affect the service life of the coating: 49.5% of the rust removal quality of the outer layer of steel; 26.5% of the coating process conditions, 19.1% of the coating thickness; 4.9% of the paint variety. It can be seen that the quality of ship surface treatment is a key factor affecting the life of the hull. [0003] Hull surface treatment methods include manual treatment, chemical treatment and mechanical treatment. [0004] Manual processing generally uses hammers, shovels, scrapers, steel brushes, etc. Common thick rust spots are first loosened with a hammer and then removed with a shovel. The o...

Claims

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Application Information

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IPC IPC(8): B24C1/08B24C5/04C23G3/00
CPCB24C1/086B24C5/04C23G3/00
Inventor 方苏毅颜瑶褚文月汪世林李玉乐陈甜
Owner ZHEJIANG OCEAN UNIV
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