CN2274111Y

CN2274111Y - Porous flame-welding heater

Info

Publication number: CN2274111Y
Application number: CN 96225607
Authority: CN
Inventors: 艾甲申
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-18
Filing date: 1996-03-18
Publication date: 1998-02-11
Anticipated expiration: 2006-03-18

Abstract

The utility model relates to a flame butt welding heater with multiple holes, which is used for welding pipelines in a butting mode on a delivery pipeline. The flame butt welding heater with multiple holes is composed of an upper half ring, a lower half ring, a connecting piece, etc., wherein gas injection pipelines and water circulation cooling pipelines are arranged in the upper half ring and the lower half ring, and injection holes are centripetally and uniformly distributed in the inner sides of the upper half ring and the lower half ring at a single line. The heater can be arranged on a butt welding opening of a large pipe fitting and a long distance delivery pipeline to carry out butt welding. Compared with the prior art, the heater has the advantages of high welding speed, good quality, low cost, etc. and can also carry out the normalizing treatment and relieve internal stress to welding elements.

Description

New-type porous flame weld heating device

The utility model belongs to the heater in the welding field, says it is a kind of transfer pipeline that is used for definitely, the porous flame butt welding heater of counterpart welding.

At present, when various conveying pipe fittings being docked welding, method commonly used has following several both at home and abroad: the welding of (1) welding torch, and its major defect is that speed is slow, of poor quality, thermal deformation is big; (2) manual electric arc welding, its major defect is an inefficiency, the cost height, thermal deformation is big; (3) waste the wiping weldering, its major defect is the welding that can not be applicable to big workpiece, long-distance pipe, (4) explosive welding (EW), and shortcoming is the welding that does not fit into the annular thin wall pipeline.

The purpose of this utility model is at the shortcoming that exists in the problems referred to above, for people provide a kind of new-type pipe fitting soldering appliance, with the Welding Problems of the circular orbit that solves big pipe fitting, long distance.

The utility model by the identical last semi-ring 3 of shape, down semi-ring 4, and

connector

5,6 form; In upper and lower semi-ring, be provided with the fuel gas injection pipeline, water circulating cooling pipe road, the spray orifice of the fuel gas injection pipeline of upper and lower semi-ring is arranged in the inboard of semi-ring, and entad, uniform, single file arranges, injection diameter is 0.7-0.9mm, spacing 10-14mm; Water circulating cooling pipe road surrounds air storage chamber, makes its heat radiation.And then air storage chamber and spray orifice are not burnt out greatly because of work calories.

After the utility model is realized, can be used for remote conveyance conduit to welding, this heater compared with the prior art: have without welding agent, butt welding speed is fast, welding quality good, cost is low and also can eliminate advantage such as internal stress simultaneously to the weldment normalized treatment.

Below in conjunction with embodiment the utility model is further specified:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a side diagrammatic sketch of the present utility model;

Fig. 3 is an A-A cut-away view of the present utility model;

Fig. 4 is a B-B cut-away view of the present utility model;

Among the figure: 1-gaseous mixture input pipe, 2-CWR, the last semi-ring of 3-, semi-ring under the 4-, 5,6-connector, 7-inlet opening, the hinged screw of 8-, 9-gaseous mixture air storage chamber, 10-water circulating cooling pipe road, 11-spray orifice, 12-fuel gas injection pipeline.

In the spray orifice inwall radius R of upper and lower semi-ring=and 187.5mm, the cross section in water recirculated cooling water road is the ring-type rectangle, and long by 40, wide by 26, wall thickness 6, material is stainless steel 1Cr18Ni9Ti; Connector workpiece, material are stainless steel, hinged nut φ=10, and length is 50, air inlet pipe φ=14, length is 350,2; Water inlet pipe φ=16, length are 300,2; Material is stainless steel, and injection diameter φ=0.8 is equidistant, be 12mm apart from meat, and is uniform; After above-mentioned other parts are assorted, press Fig. 1-Fig. 4 and install and get final product through debugging.

Claims

A kind of porous flame weld heating device, form by last semi-ring, following semi-ring and connector etc., in upper and lower semi-ring, be provided with the fuel gas injection pipeline, water circulating cooling pipe road, it is characterized in that: the spray orifice of fuel gas injection pipeline is arranged in the inboard of semi-ring, and entad, uniform, single file arranges, injection diameter is 0.7-0.9mm, spacing is 10-14mm, and water circulating cooling pipe road surrounds air storage chamber.