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Welding method of firefighting pressure reduction pump for kitchen

A welding method and decompression pump technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., to achieve high repair efficiency, low hydraulic flow loss, and high efficiency

Inactive Publication Date: 2016-12-07
GUANGXI ANXUN TECH INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Requires professional technicians to design and repair

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The technical solution of the preferred embodiment of the present invention will be described in detail below.

[0011] The welding method of the kitchen fire pressure reducing pump includes the following steps: 1. The welding place must be cleaned before welding, the weld meat of the original cracked part should be removed, and the cracked part must be polished after planing. Clean iron oxide; 2. Preheat the welding position of the fire pump before welding, and then use intermittent welding, dispersion welding or post-welding hammering. Use a hammer to hit the weld and the edge of the weld, the edge of the fire pump and the flange The remaining edge plates are welded directly after the remaining butt joints, until the shrinkage weld between the edge plate and the middle width plate of the fire pump cools; 3. The welding of the fire pressure reducing pump and the water suction and water supply pipes must ensure penetration, and then add welding to the outside of the pipe to...

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PUM

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Abstract

The invention discloses a welding method of a firefighting pressure reduction pump for a kitchen. The welding method is characterized by comprising the following steps: 1, clearing weld parts clean before welding, taking away weld metal at original crack parts, using an angle grinder to grind and clear, and after gouging the crack parts, grinding ferric oxide clean; 2, preheating the weld positions of the firefighting pump before welding, then adopting intermittent welding, dispersed welding or hitting after welding, hitting weld joints and the edges of the weld joints by a hammer, and directly welding after the edges of large and small openings of the firefighting pump are butt joint with remaining flange edge plates until shrinkage weld joints between the edge plates and center plates of the firefighting pump are cooled; and 3, ensuring the firefighting pressure reduction pump, a water sucking pipeline and a water delivery pipeline are thoroughly welded, and then, welding reinforcing ribs on the outer sides of the pipelines, wherein the thickness of the reinforcing ribs is larger than or equal to 10mm; and checking crack conditions, if cracks exist, welding again after eliminating the cracks by carbon arc gouging.

Description

Technical field [0001] The invention belongs to the technical field of fire-fighting machinery, and particularly relates to a welding method of a fire-fighting decompression pump for a kitchen. Background technique [0002] The fire pump is a special pump installed in the kitchen, fixed fire extinguishing system or other fire fighting facilities, and used as a special pump to transport liquid fire extinguishing agents such as water or foam solution. The selection of the fire pump should be based on the process flow of the fire pump application project, the water supply and drainage requirements, and the five aspects of liquid delivery, device head, liquid properties, piping layout and operating conditions should be considered. Need professional and technical personnel to design to maintain and repair. Summary of the invention [0003] The technical problem solved by the present invention is to provide a welding method for a kitchen fire-fighting pressure reducing pump, which has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K26/60
CPCB23K26/24B23K26/60
Inventor 梁汉斌
Owner GUANGXI ANXUN TECH INVESTMENT CO LTD