CN204975638U - A solar term device that be used for pipeline aerify protection weld - Google Patents
A solar term device that be used for pipeline aerify protection weld Download PDFInfo
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- CN204975638U CN204975638U CN201520481611.2U CN201520481611U CN204975638U CN 204975638 U CN204975638 U CN 204975638U CN 201520481611 U CN201520481611 U CN 201520481611U CN 204975638 U CN204975638 U CN 204975638U
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- gas
- pipeline section
- block panel
- pipeline
- gas block
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Abstract
The utility model discloses a solar term device that be used for pipeline aerify protection weld. The solar term device keeps off gas board, the first fender gas board of setting in the second pipeline section including the second that sets up in first pipeline section, first fender gas board and second pipeline section all set up near the weld bond of corresponding pipeline section, between first pipeline section and the second fender gas board outer fringe, all be provided with the sealing member between second pipeline section and the first fender gas board outer fringe, only form between first pipeline section, second fender gas board, second pipeline section, first fender gas board and the corresponding sealing member weld bond with external communicate aerify the cavity, be connected with on first fender gas board and the second fender gas board and be arranged in welding the tractive unit that continuous pipe was pulled out with first fender gas board and second fender gas board from first pipeline section and second pipeline section after welding. The utility model provides an intraductal protection difficult problem of aerifing of movable weld bond or fixed weld bond generally speaking.
Description
Technical field
The utility model relates to a kind of choking system for the weldering of pipeline gas-filled protective.
Background technology
In the such as pipeline welding process such as stainless steel tube, P91 pipe, titanium pipe, for meeting weldquality requirement or production technology to the cleanliness factor of pipe interior, inwall flatness or fineness needs, often need the argon arc welding technique adopting filling steel pipes with argon (or other inert gas).
In order to realize filling steel pipes with argon, people usually adopt sponge (see figure 1) or adopt the plain mode of paste papering shutoff.Due to general sponge can not be put into from weld bond too close to position, otherwise produce thermal deformation; Simultaneously the intensity of sponge is lower, and the imprecision of material own, easily leaks gas, and sponge plate is advanced or in pull-out pipe time the easy shortcoming such as broken; Adopt paste papering method, be not easy operation due to papering and easily drop, and papering is not easily removed by existence in pipe, be difficult to ensure to installation quality.
Use said method, not easily form less confined space, need the space of inflation comparatively large, waste argon gas is more, and simultaneously because shutoff space is large, air is not easily replaced, and protective gas purity reduces, and affects weldquality, does not ensure cleannes in pipe.
Utility model content
The utility model aims to provide a kind of choking system for the weldering of pipeline gas-filled protective; a gas-filled protective difficult problem in the pipe that this choking system can solve generally movable weld bond or fixing weld bond well; have easy and simple to handle simultaneously; save inflation; optimize welding surroundings; the advantages such as emissions reduction, have extensive economic and social profit, have a extensive future.
To achieve these goals, the technical scheme that the utility model adopts is:
For a choking system for pipeline gas-filled protective weldering, comprise the second gas block panel be arranged in the first pipeline section, be arranged on the first gas block panel in the second pipeline section; Described first gas block panel and the second pipeline section are all arranged near the weld bond of corresponding pipeline section; Its design feature is, is provided with seal between described first pipeline section and the second gas block panel outer rim, between the second pipeline section and the first gas block panel outer rim; The inflating cavity only having weld bond to be in communication with the outside is formed between described first pipeline section, the second gas block panel, the second pipeline section, the first gas block panel and corresponding seal; Described first gas block panel and the second gas block panel are connected with the tractive unit of postwelding for the first gas block panel and the second gas block panel being pulled out from the pipe that the first pipeline section and the second pipeline section are weldingly connected.
Thus, in described inflating cavity, be filled with protective gas, protective gas leaks few; effectively save the consumption of protective gas; after having welded, by outside the first gas block panel and the second gas block panel pull-out pipe, the problem of sponge fragmentation or papering adhesion can be avoided by pulling tractive unit.
Be below the technical scheme of further improvement of the utility model:
As a kind of version being filled with protective gas to inflating cavity specifically, be fixedly linked by short tube between described first gas block panel and the second gas block panel; Forming described inflating cavity between the outer wall of described first pipeline section, the second gas block panel, the second pipeline section, the first gas block panel, short tube and corresponding seal, for meeting special operation condition condition, the structure of two pieces of baffle plates and material and connected mode thereof can be improved.
In order to realize inflation more easily, described short tube passes the first gas block panel and stretches out, the external part of this short tube and a gas tube fittings; Described short tube having the air-filled pore for being filled with protective gas in described inflating cavity, simultaneously for fixing port group pair, it can be utilized to insert interim backstay, fixing weld bond group is to the interim backstay of taking-up after completing.
For the situation that the second pipeline section is shorter, can by the external part of described short tube by doubling as the tube connector of tractive unit and described gas tube fittings; One end that described tube connector is connected with gas tube joint is stretched out outside described second pipeline section, and thus, after welding, directly pulling tube connector 13 can by outside the first gas block panel and the second gas block panel pull-out pipe.
For the situation that the second pipeline section is long, described first gas block panel and the one end as the stay cord of tractive unit can be fixedly linked, the other end of this stay cord is arranged on outside the second pipeline section, thus, after welding, directly pulling stay cord can by outside the first gas block panel and the second gas block panel pull-out pipe.
In order to ensure air-tightness, the junction of described short tube and the first pipeline section is provided with the pipe collar be sleeved on short tube.
As a kind of concrete version, described second gas block panel and the first gas block panel are all arranged perpendicular to the length direction of described first pipeline section.
Described weld bond place is provided with the strap-like member for cover part weld seam, thus, when welding; progressively remove strap-like member; the gas flow that protective gas overflows from inflating cavity can be reduced to greatest extent, thus realize under the prerequisite of identical protective atmosphere concentration, reduce protective gas consumption.
Preferably, described tractive unit is draw bar or stay cord.
Preferably, described seal is polytetrafluoroethylene ring or rubber ring.
In order to ensure solar term effect, avoid impact welding, the distance between described first gas block panel and the second gas block panel is 150mm-250mm simultaneously.
Compared with prior art; the beneficial effects of the utility model are: a gas-filled protective difficult problem in the pipe that the utility model solves generally movable weld bond or fixing weld bond; have easy and simple to handle simultaneously; save inflation; optimize welding surroundings; the advantages such as emissions reduction, have extensive economic and social profit, have a extensive future.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing pipeline welding aerating device;
Fig. 2 is the structure principle chart of a kind of embodiment of the utility model;
Fig. 3 is the structure principle chart of the another kind of embodiment of the utility model.
In the drawings
1-the first pipeline section; 2-pipe collar; 3-polytetrafluoroethylene ring or rubber ring; 4-the first gas block panel; 5-short tube; 6-air admission hole; 7-the second pipeline section; 8-the second gas block panel; 9-weld bond; 10-set bolt; 11-pipe collar; 12-gas tube joint; 13-tube connector; 14-weld-ring; 15-stay cord.
Detailed description of the invention
Embodiment 1
A kind of choking system for the weldering of pipeline gas-filled protective; as shown in Figure 2; be arranged on and form a spacing primarily of the first gas block panel 4, second gas block panel 8, soft polytetrafluoroethylene ring or rubber ring 3, double thread short tube 5 and the first pipeline section 1, second pipeline section 7 in pipe that the first pipeline section 1 and the second pipeline section 7 be spliced to form and be about this spacing of 200mm(and adjust depending on operating mode needs; double thread short tube 5 can be changed over the connector of other form simultaneously) " inflating cavity ", now by weld bond 9(position while welding) spot welding fixes.When gas tube joint 12(leather pipe joint) weld source of the gas with protection and to connect and after inflating, air-flow is through internal thread pipe collar 11, double as the tube connector 13 of pull bar, double thread short tube 5 etc., the air admission hole 6 being 3mm by diameter again enters in inflating cavity 16, in inflation (protective gas) through weld bond 9(position while welding) fully flowed out for about 10 seconds, air now in " inflating cavity " 16 is replaced substantially, with adhesive tape coated weld bond 9(position while welding) major part, reserve welding position, start bottoming welding, weld seam welding certain length, just rip the adhesive tape of certain length, avoid wasting protective gas.Double as the tube connector 13 of pull bar, can expand depending on the length of pipeline section second pipeline section 7, there is the function of the mozzle advancing and pull out and serve as protective gas.
Choking system of the present utility model is particularly useful for the situation of internal diameter at 50mm ~ 650mm, the pipeline section welding that internal diameter is less than 50mm also can adopt Fig. 1 method, internal diameter is greater than the welding of 650mm pipeline section also can adopt Fig. 1 method, is entered in pipe lay plugging device by operating personnel.
Embodiment 2
A kind of choking system for the weldering of pipeline gas-filled protective; as shown in Figure 3; its concrete structure and embodiment 1 are roughly the same; difference is only that the right side of the first gas block panel 4 is provided with the two or four weld-ring 14 that diameter is 6mm; weld-ring 14 is fixedly connected with steel wire tow line 15; the other end of steel wire tow line 15 stretches out the second pipeline section 17; so that after welding; directly pulled out by the first gas block panel 4 by traction steel wire stay cord 15, this structure is particularly useful for all longer situation of the first pipeline section 1, second pipeline section 7.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen into the application's claims limited range.
Claims (10)
1., for a choking system for pipeline gas-filled protective weldering, comprise the second gas block panel (8) be arranged in the first pipeline section (1), be arranged on the first gas block panel (4) in the second pipeline section (7); Described first gas block panel (4) and the second pipeline section (7) are all arranged near the weld bond (9) of corresponding pipeline section; It is characterized in that, between described first pipeline section (1) and the second gas block panel (8) outer rim, between the second pipeline section (7) and the first gas block panel (4) outer rim, be provided with seal; The inflating cavity (16) only having weld bond (9) to be in communication with the outside is formed between described first pipeline section (1), the second gas block panel (8), the second pipeline section (7), the first gas block panel (4) and corresponding seal; Described first gas block panel (4) and the second gas block panel (8) are connected with the tractive unit of postwelding for the first gas block panel (4) and the second gas block panel (8) being pulled out from the pipe that the first pipeline section (1) and the second pipeline section (7) are weldingly connected.
2. the choking system for the weldering of pipeline gas-filled protective according to claim 1, is characterized in that, is fixedly linked between described first gas block panel (4) and the second gas block panel (8) by short tube (5); Described inflating cavity (16) is formed between the outer wall of described first pipeline section (1), the second gas block panel (8), the second pipeline section (7), the first gas block panel (4), short tube (5) and corresponding seal.
3. the choking system for the weldering of pipeline gas-filled protective according to claim 2, it is characterized in that, described short tube (5) is through the first gas block panel (4) and stretch out, and the external part of this short tube (5) is communicated with a gas tube joint (12); Described short tube (5) has the air-filled pore (6) for being filled with protective gas in described inflating cavity (16).
4. the choking system for the weldering of pipeline gas-filled protective according to claim 3, it is characterized in that, the external part of described short tube (5) is communicated with described gas tube joint (12) by the tube connector (13) doubling as tractive unit; Described second pipeline section (7) is stretched out outward in one end that described tube connector (13) is connected with gas tube joint (12).
5. the choking system for the weldering of pipeline gas-filled protective according to claim 3; it is characterized in that; described first gas block panel (4) is fixedly linked with the one end as the stay cord (15) of tractive unit, and the other end of this stay cord (15) is arranged on the second pipeline section (7) outward.
6. the choking system for the weldering of pipeline gas-filled protective according to claim 3, is characterized in that, described short tube (5) is provided with the junction of the first pipeline section (1) pipe collar (2) be sleeved on short tube (5).
7., according to the choking system for the weldering of pipeline gas-filled protective one of claim 1 to 6 Suo Shu, it is characterized in that, described first gas block panel (4) and the second gas block panel (8) are all arranged perpendicular to the length direction of described first pipeline section (1).
8., according to the choking system for the weldering of pipeline gas-filled protective one of claim 1 to 6 Suo Shu, it is characterized in that, described weld bond (9) place is provided with the strap-like member for cover part weld seam.
9., according to the choking system for the weldering of pipeline gas-filled protective one of claim 1 to 6 Suo Shu, it is characterized in that, described seal is polytetrafluoroethylene ring or rubber ring (3).
10., according to the choking system for the weldering of pipeline gas-filled protective one of claim 1 to 6 Suo Shu, it is characterized in that, the distance between described first gas block panel (4) and the second gas block panel (8) is 150mm-250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481611.2U CN204975638U (en) | 2015-07-07 | 2015-07-07 | A solar term device that be used for pipeline aerify protection weld |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481611.2U CN204975638U (en) | 2015-07-07 | 2015-07-07 | A solar term device that be used for pipeline aerify protection weld |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204975638U true CN204975638U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520481611.2U Active CN204975638U (en) | 2015-07-07 | 2015-07-07 | A solar term device that be used for pipeline aerify protection weld |
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| CN (1) | CN204975638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277729A (en) * | 2018-10-18 | 2019-01-29 | 中船澄西船舶修造有限公司 | A kind of steel-pipe welding protection gas tooling |
| CN111673238A (en) * | 2020-05-12 | 2020-09-18 | 中船澄西船舶修造有限公司 | Stainless steel pipe welding back protection inflation tool |
-
2015
- 2015-07-07 CN CN201520481611.2U patent/CN204975638U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277729A (en) * | 2018-10-18 | 2019-01-29 | 中船澄西船舶修造有限公司 | A kind of steel-pipe welding protection gas tooling |
| CN109277729B (en) * | 2018-10-18 | 2020-12-04 | 中船澄西船舶修造有限公司 | Steel pipe welding protective gas tool |
| CN111673238A (en) * | 2020-05-12 | 2020-09-18 | 中船澄西船舶修造有限公司 | Stainless steel pipe welding back protection inflation tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |