CN202555958U - Zirconium and zirconium alloy pipeline welding protection tooling - Google Patents
Zirconium and zirconium alloy pipeline welding protection tooling Download PDFInfo
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- CN202555958U CN202555958U CN201220154657XU CN201220154657U CN202555958U CN 202555958 U CN202555958 U CN 202555958U CN 201220154657X U CN201220154657X U CN 201220154657XU CN 201220154657 U CN201220154657 U CN 201220154657U CN 202555958 U CN202555958 U CN 202555958U
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Abstract
A title of the utility model is a zirconium and zirconium alloy pipeline welding protection tooling which belongs to the zirconium material welding protection tooling technology field. The utility model mainly provides an outside protective tooling used for an argon tungsten-arc welding workpiece in a field condition. The tooling is mainly characterized in that: the tooling comprises an outer cover which can cover a weld joint of the workpiece to be welded and surrounding parts and match with a surface shape of the workpiece to be welded; a gas-filled tube and a cooling device are arranged in a cavity of the outer cover; an air filter device is arranged on a position which is close to the workpiece to be welded and is in the cavity of the outer cover; an edge which is made of a soft high-temperature resistant material is arranged on a contact part of the outer cover and the workpiece to be welded. The tooling of the utility model has the following characteristics that: the structure is reasonable; equipment is simple; usage is convenient and cost is low. The tooling is especially suitable for welding the zirconium and zirconium alloy pipeline in a construction place under the field condition.
Description
Technical field
The utility model belongs to zirconium material welding protection frock technical field.Be specifically related to the manual and outer protecting tool set-up of semi-automatic tungsten argon arc welded tube of a kind of zirconium and zircaloy pipeline.
Background technology
Zirconium and zircaloy have excellent nuclearity ability and decay resistance, are widely used in Nuclear Power Engineering, and progressively get into chemical industry.Because zirconium and zircaloy need inert gas shielding under the welding region condition of high temperature, it is very big therefore to weld difficulty.External zirconium and the welding of zircaloy pipeline, most of employing high-tech machinery welding in factory, Equipment Requirement is high, and a small amount of open-air mouth of pipe adopts GTAW, but technology holds in close confidence; Domestic only have a small amount of application in nuclear device, welding in adopted vacuum electricity bundle weldering and the inert gas shielding cell, and equipment complicacy, and limitation is big.Said method and equipment can't complicated zirconium and the open-air welding procedure requirements of zircaloy industrial pipeline of commensurate structure.
The utility model content
The purpose of the utility model is exactly that the outer protecting tool set-up that is used for manual and semi-automatic argon tungsten-arc welding welding zirconium and zircaloy pipeline under a kind of condition in the open air is provided to above-mentioned weak point.
The technical solution of the utility model is: a kind of zirconium and zircaloy pipeline welding protection frock is characterized in that: comprise can cover workpiece weld seam to be welded and peripheral part thereof and with the outer cover of this surface of the work form fit to be welded; In the cavity of outer cover, be provided with gas tube and cooling device; Position near workpiece to be welded in the outer cover cavity is provided with air filter; Be provided with the edge that flexible exotic material is processed in the contact site of outer cover and workpiece to be welded.
Outer cover described in the utility model technical solution can be the fan-shaped cavity of rectangle for cross section; Cooling device is made up of cooling water pipe, is divided into the both sides of gas tube; The outer cover sidepiece is provided with the welding gun chuck of being convenient to the welding gun operation.
The described outer cover of the utility model technical solution can also be the fan-shaped cavity of arc for cross section; Cooling device is made up of cooling water pipe, is divided into the both sides of gas tube; The outer cover sidepiece is provided with the welding gun chuck of being convenient to the welding gun operation.
The described outer cover of the utility model technical solution can also comprise semi-circumference cavity and the circular metal thin plate movable guard that four cross sections are rectangle; Cooling device is made up of hydroecium, is located at the outside in the outer cover cavity; Gas tube is located in the outer cover cavity inboard; Outer cover is provided with the connection nose, and per two outer covers connect into a width of cloth outer cover through connecting nose; Circular metal thin plate movable guard is arranged between the two secondary outer covers; This circular metal thin plate movable guard is provided with the welding gun operation window.
Qi-emitting hole on the described gas tube of the utility model technical solution all is provided with towards the weld seam rightabout; Air filter is made up of multilayer filter gas copper mesh and sieve gas plate.
The utility model is owing to be provided with and the outer cover of form fit around the workpiece weld seam to be welded; And be provided with gas tube, cooling device and air filter in the outer cover cavity; The contact site of outer cover and workpiece is provided with the edge that flexible exotic material is processed, thereby forms the outer protecting tool set-up of workpiece.Outer cover is buckled on the workpiece to be welded; Welding gun is placed or be fixed in the sidepiece of outer cover, drag outer cover and move along the workpiece outer wall, inert gas gets into protective cover by gas tube; Add the effect of plug formula inflatable protective device in the conventional workpiece; Inert gas is carded to laminar flow through air filter and flows to welding region, and progressively with the emptying of welding region air, prevents that turbulent flow is involved in pernicious gas; Cooling device helps improving the welding protection effect, and the flexible edge of outer cover is along realizing the flexibility sealing in the welding campaign of outer cover and welded piece.Like this, can guarantee that just the welding position that zirconium and zircaloy workpiece will be under the high-temperature soldering state all the time places among the inert gas shielding, has also just guaranteed welding quality in welding process.Through on probation in certain building site, nearly 20 tons of welding industrial pure zirconium pipeline, caliber 1/4 " ~ 18 "; Road surplus the weld seam 1200, weld seam and heat affected area all are silvery white in color, and test rating all meets the requirement of ASME rules; Radiographic inspection check first-time qualification rate reaches more than 99%, and welding quality is good.The utility model has also that project organization is reasonable, equipment is simple, easy to use, characteristics that cost is low, is particularly suitable for the welding that builder's yard under the condition in the open air is used for zirconium and zircaloy pipeline.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the A-A sectional structure sketch map of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the B-B sectional structure sketch map of Fig. 3.
Fig. 5 is the partial structurtes sketch map of the utility model embodiment 3.
Fig. 6 is the structural representation after the utility model embodiment 3 installs.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe.
Embodiment 1 is like Fig. 1, shown in Figure 2, and outer cover 1 is the fan-shaped cavity of rectangle for cross section.Welding gun chuck 2 is fixed in the termination sidepiece of outer cover 1, which is provided with to hold out against screw 3.Gas tube 4 places in the outer cover 1.Which is provided with qi-emitting hole, the qi-emitting hole direction towards the weld seam rightabout promptly outwardly.Cooling water pipe 5 is back-shaped, is divided into the both sides of gas tube 4.Air filter 6 is located at the bottom of outer cover 1, be made up of the multilayer filter gas copper mesh on upper strata and the air filtering plate (copper coin) of lower floor, and air filtering plate is a little more than the lower end of outer cover 1.Edge 22 is processed by flexible exotic material, is pasted on outer cover 1 and the bottom that pipe contacts, and is used for welding the flexibility sealing of motion process.Embodiment 1 is the partial inflation protecting tool set-up, is applicable to caliber >=2 " pipeline welding.During use, outer cover 1 is buckled in by on the welded tube, welding gun chuck 2 is fastening with holding out against screw 3 with welding gun; A conventional inflatable protective device of feeling wronged and acting rashly is set in pipe simultaneously; Welding gun drags outer cover 1 and moves along the pipe outer wall, realizes the inert gas shielding space of welding region, final completion welding.
Embodiment 2 is like Fig. 3, shown in Figure 4, and wherein, welding gun chuck 8, to hold out against screw 9, gas tube 13, cooling water pipe 11, air filter 12, edge 23 identical with corresponding component among the embodiment 1.Different with embodiment 1 is that the cross section of outer cover 7 is an arc, is the fan-shaped cavity of half cycle.Embodiment 2 is threeway, flange half cycle gas-filled protective frock, is applicable to that opening the threeway welding on the person in charge uses.The use operation of embodiment 2 is identical with embodiment's 1.
Embodiment 3 is like Fig. 5, shown in Figure 6, and outer cover 13 is the semi-circumference cavity of rectangle for cross section.Outside in outer cover 13 cavitys which is provided with charging pipe 16 for the hydroecium 17 of envelope wall; Inside is air chamber 15, and gas tube 14 is placed in one.Air chamber 15 lower ends are air filter 18, also be made up of the multilayer filter gas copper mesh on upper strata and the filter gas copper coin of lower floor, and the inwall lower end are longer than in the outer wall lower end of outer cover 13.Outer end 13 is provided with and connects nose 19.Four outer covers 13 are divided into two pairs, and every pair is fastening with trip bolt 20, and two pairs are divided on the welded tube of weld seam both sides.Sheet metal movable guard 21 coincide with outer cover 13 external diameters, is enclosed within two secondary outer cover preset clearance places, and movable guard 21 can slide along outer cover 13 external diameters, and movable guard 21 is provided with aperture, is used to place welding gun and observes weld seam.Outer cover 13 and the flexible edge edge that is combined the imprecision place to be provided with to process by welded tube with flexible exotic material.Embodiment 3 is totally-enclosed side direction gas-filled protective cover, and protective gas is parallel to by the welded tube outside and is flowed to welding region, is suitable for and φ 2 that " following narrow tube welds.Stay 30～50mm gap between the two secondary outer covers 13, movable guard 21 width 40～60mm, joint 30～50mm open-ended, as welding gun inlet and observation panel, the moving movable guard 21 of welding gun can weld weld seam along outer cover 13 places lateral movement.
Claims (5)
1. zirconium and zircaloy pipeline welding protection frock is characterized in that: comprise can cover workpiece weld seam to be welded and peripheral part thereof and with the outer cover (1,7,13) of this surface of the work form fit to be welded; In the cavity of outer cover (1,7,13), be provided with gas tube (4,10,14) and cooling device (5,11,17); Position near workpiece to be welded in outer cover (1,7,13) cavity is provided with air filter (6,12,18); Contact site at outer cover (1,7) and workpiece to be welded is provided with the edge (22,23) that flexible exotic material is processed.
2. a kind of zirconium according to claim 1 and zircaloy pipeline welding protection frock is characterized in that: described outer cover (1) is the fan-shaped cavity of rectangle for cross section; Cooling device is made up of cooling water pipe (5), is divided into the both sides of gas tube (4); Outer cover (1) sidepiece is provided with the welding gun chuck (2) of being convenient to the welding gun operation.
3. a kind of zirconium according to claim 1 and zircaloy pipeline welding protection frock is characterized in that: described outer cover (7) is the fan-shaped cavity of arc for cross section; Cooling device is made up of cooling water pipe (11), is divided into the both sides of gas tube (13); Outer cover (7) sidepiece is provided with the welding gun chuck (8) of being convenient to the welding gun operation.
4. a kind of zirconium according to claim 1 and zircaloy pipeline welding protection frock is characterized in that: described outer cover (13) comprises semi-circumference cavity and the circular metal thin plate movable guard (21) that four cross sections are rectangle; Cooling device is made up of hydroecium (17), is located at the outside in outer cover (13) cavity; Gas tube (14) is located in outer cover (13) cavity inboard; Outer cover (13) is provided with and connects nose (19), and per two outer covers (13) connect into a width of cloth outer cover through connecting nose (19); Circular metal thin plate movable guard (21) is arranged between the two secondary outer covers; This circular metal thin plate movable guard (21) is provided with the welding gun operation window.
5. according to claim 1 or 2 or 3 or 4 described a kind of zirconiums and zircaloy pipeline welding protection frock, it is characterized in that: the qi-emitting hole on the described gas tube (4,10,14) all is provided with towards the weld seam rightabout; Air filter (6,12,18) is made up of multilayer filter gas copper mesh and sieve gas plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220154657XU CN202555958U (en) | 2012-04-13 | 2012-04-13 | Zirconium and zirconium alloy pipeline welding protection tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220154657XU CN202555958U (en) | 2012-04-13 | 2012-04-13 | Zirconium and zirconium alloy pipeline welding protection tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555958U true CN202555958U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220154657XU Expired - Fee Related CN202555958U (en) | 2012-04-13 | 2012-04-13 | Zirconium and zirconium alloy pipeline welding protection tooling |
Country Status (1)
| Country | Link |
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| CN (1) | CN202555958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386564A (en) * | 2013-07-22 | 2013-11-13 | 南京德邦金属装备工程股份有限公司 | Special protecting cover for automatic welding of pipe opening of zirconium heat exchanger |
| CN104551353A (en) * | 2014-12-19 | 2015-04-29 | 北京星通浩宇科技发展有限公司 | Arc semi-closed gas protection cover for welding pipeline and welding method |
-
2012
- 2012-04-13 CN CN201220154657XU patent/CN202555958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386564A (en) * | 2013-07-22 | 2013-11-13 | 南京德邦金属装备工程股份有限公司 | Special protecting cover for automatic welding of pipe opening of zirconium heat exchanger |
| CN104551353A (en) * | 2014-12-19 | 2015-04-29 | 北京星通浩宇科技发展有限公司 | Arc semi-closed gas protection cover for welding pipeline and welding method |
| CN104551353B (en) * | 2014-12-19 | 2016-08-17 | 北京星通浩宇科技发展有限公司 | Circular arc semi-hermetic gas protective drawing cover and welding method for pipeline welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20160413 |