Air heater for cold spray

An air heater and cold spraying technology, which is applied in the direction of air heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of low heat utilization efficiency, large insulation part volume, high protection requirements, etc., and achieve novel structure and construction Good environment and energy saving effect

Active Publication Date: 2012-09-05
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For portable heaters, the weight of the spray gun is more than 20kg, which cannot be hand-held, and the outer surface temperature of the spray gun is at least 100 degrees Celsius, which requires high protection. Less efficient use of heat

Method used

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  • Air heater for cold spray
  • Air heater for cold spray

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Embodiment

[0011] The main structure of this embodiment includes insulation brick 1, metal shell tube 2, ceramic fiber insulation layer 3, heating element 4, cold gas inlet 5, heating gas connection pipe 6, heating power connection 7 and hot gas outlet 8, cylindrical The top corner of the metal shell tube 2 is equipped with an oblique cold gas inlet 5, and the bottom corner of the metal shell tube 2 is equipped with an extended heating gas connection pipe 6 or a metal hose structure; the inner wall of the metal shell tube 2 is of equal thickness. In the parallel structure, there are arranged and distributed thermal insulation bricks 1. In the cavity formed in the inner side wall of the thermal insulation brick 1, there is a hollow pipe-type spiral heating element 4 vertically formed. The outer sides of the two ends of the heating element 4 are respectively connected to the power supply wiring 7. The external structure of the hollow-pipe heating element 4 is a spiral hollow structure. The h...

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Abstract

The invention belongs to the technical field of hot spray in surface engineering, and particularly relates to an air heater for cold spray. One corner of on the top end of a cylindrical metal shell barrel is provided with an inclined cold gas inlet, and one corner on the bottom end of the metal shell barrel is provided with an protruding heated gas connecting pipe or a heated gas connecting pipe in a metal hose structure; insulating bricks are distributed on the inner side of the metal shell barrel in an arrangement mode; a cavity formed by the inner side walls of the insulating bricks is vertically provided with a heating element; the outer sides of both ends of the heating element are respectively connected with a power line; the appearance of the heating element is a spiral hollow structure; the space around the heating element is provided with a ceramic fiber insulating layer in a filling structure; the cavity between the inner and outer walls of the metal shell barrel is filled with a heated gas which enters via the cold gas inlet; and a hot gas outlet is arranged at the outlet on the top end of a hollow pipeline of the heating element. The invention has the advantages of novel structure, reliable principle, electric energy saving, favorable construction environment and high heating efficiency, and is safe for use and operation.

Description

Technical field: [0001] The invention belongs to the technical field of surface engineering thermal spraying, and specifically relates to an air heater for cold spraying, which is used for optimizing and improving the structural shape and heat utilization efficiency of the heater component of the cold spraying equipment. Background technique: [0002] At present, the air heater is an important part of cold spray equipment, which determines the performance and processing capacity of the equipment. Generally, for cold spray equipment whose heater can reach 300 degrees Celsius, the materials that can be processed are mainly limited to aluminum and lead; when it reaches 500 degrees Celsius, it can process materials such as copper, titanium, and stainless steel; when it reaches 800 degrees Celsius, it can process MCrAls, Co- High hardness materials such as WC. However, high temperature means higher requirements for the service life and protective measures of the equipment, which lead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/04F24H3/00
Inventor 黄国胜李相波邢路阔
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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