CN104923990A - Inflation protection device - Google Patents
Inflation protection device Download PDFInfo
- Publication number
- CN104923990A CN104923990A CN201410109005.8A CN201410109005A CN104923990A CN 104923990 A CN104923990 A CN 104923990A CN 201410109005 A CN201410109005 A CN 201410109005A CN 104923990 A CN104923990 A CN 104923990A
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- CN
- China
- Prior art keywords
- charging connector
- arm
- anger
- protective device
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an inflation protection device. In the welding process, oxidization resistance can be achieved with the device. The inflation protection device comprises an inflation pipe and a gas source communicated with the inflation pipe and further comprises an inflation nozzle communicated with the inflation pipe; and the inflation nozzle is provided with an inner cavity, and in the welding process, a workpiece which is required to be protected in an inflation manner for resisting oxidization is located in the inner cavity of the inflation nozzle. Therefore, one end, inserted into the inner cavity of the inflation nozzle of the inflation protection device, of the workpiece is isolated from external air and is not in contact with air, the phenomenon that oxide skin appears is completely eliminated, and the inner wall of the workpiece obtained after welding is as bright as the inner wall of a workpiece before welding.
Description
Technical field
The present invention relates to refrigeration system pipeline auxiliary welding equipment, particularly a kind of inflatable protective device in welding process.
Background technology
During refrigeration system pipeline welding, for avoiding pipeline to weld the situation occurring oxide skin, requirement must carry out gas-filled protective when welding to workpiece.Especially the Y-branch fitting be connected with refrigeration system pipeline, forked type threeway comprises house steward's mouth of pipe and two arm mouths of pipe, wherein, be all connected, and house steward's mouth of pipe need weld mutually with refrigeration system pipeline between house steward's mouth of pipe with two arm mouth of pipe threes.When carrying out the welding house steward mouth of pipe to Y-branch fitting in current industry, one of them arm mouth of pipe inside aerating device being inserted into Y-branch fitting is generally adopted to carry out inflated with nitrogen protection welding.Be generally after first nitrogen gas source of the gas being opened a period of time, gas transmits along the house steward's mouth of pipe to Y-branch fitting of aerating device longitudinal direction; And then weld.When reaching the pad of house steward's mouth of pipe, the temperature of house steward's mouth of pipe is about 900 DEG C, due to the heat conductivility that copper material is good, is delivered to the temperature of two arm mouths of pipe also more than 300 DEG C by house steward's mouth of pipe.Because aerating device is interpolation, the upwards transmission that gas is longitudinal again simultaneously, therefore in welding process, the arm mouth of pipe aerating device insertion portion inflated with nitrogen protection owing to not having of Y-branch fitting, produces oxide skin after the mouth of pipe after being heated contacts with air.
Simultaneously because Y-branch fitting has two arm mouths of pipe, inflated with nitrogen protection is carried out in the inside that this interpolation aerating device once can only be inserted in an arm mouth of pipe, cannot carry out inflated with nitrogen protection for the Y-branch fitting with two arm mouths of pipe simultaneously; During inflation, gas is by the flowing to this arm mouth of pipe and house steward's mouth of pipe, hardly through the another one arm mouth of pipe of aerating device longitudinal direction of the interpolation arm mouth of pipe wherein.And the arm mouth of pipe not inserting aerating device cannot arrive completely due to institute's inflated with nitrogen, the mouth of pipe after being heated and inner chamber contact rear oxidation with air particularly serious.
The oxide skin that above situation produces flows within air-conditioning systems with refrigerant, some system elements can be caused dirty stifled, cause air-conditioning system normally to run.The dirty stifled accident after sale of the capillary occurred after operation of air conditioner a period of time, filter is exactly due to the accumulative result of these oxide skin impurity.
Summary of the invention
The present invention aims to provide a kind of nitrogen filled protection device, to solve the problem adopting interpolation type aerating device to cause oxidation-protective effect difference.
To achieve these goals, according to the invention provides inflatable protective device anti-oxidation in a kind of welding process, comprising: gas tube; The gas source be connected with gas tube; Also comprise: the charging connector be connected with gas tube, charging connector has an inner chamber, needs the anti-oxidation and workpiece carrying out gas-filled protective to be arranged in the inner chamber of charging connector in welding process.
Further, also comprise the portion of giving vent to anger be connected with gas tube, the gas discharge direction in portion of giving vent to anger is towards the direction at the wall place of charging connector inner chamber.
Further, the first end in portion of giving vent to anger is connected with the port on the joint face of gas tube with charging connector.
Further, the second end that portion's first end of giving vent to anger is relative arranges sealing, the sidewall between the first end in the portion of giving vent to anger and the second end is offered at least one gas outlet.
Further, also comprise connecting portion, connecting portion is for connecting charging connector and gas tube.The first end in portion of now giving vent to anger is connected with the port on the joint face of connecting portion with charging connector.
Further, in welding process, the portion of giving vent to anger is positioned at needs to carry out the anti-oxidation and workpiece of gas-filled protective.
Further, the portion of giving vent to anger is tubulose.
Further, charging connector is positioned on the sidewall of gas tube, and the two ends of gas tube are connected with gas source respectively.
Further, charging connector is multiple.
Further, institute's inflatable body is nitrogen.
The present invention simultaneously also provides a kind of Y-branch fitting in welding process, need anti-oxidation inflatable protective device; described Y-branch fitting is included in house steward soldered in welding process, the first arm and the second arm; described house steward, the first arm are connected with the second arm three; described inflatable protective device is all arranged in the described inner chamber of charging connector for the inflatable protective device described in above any one, the first arm and the second arm.
Further, the portion of giving vent to anger is two, and in welding process, two outlet gas part are not arranged in the first arm and second arm of Y-branch fitting.
Further, the cavity shape of charging connector and the first arm of Y-branch fitting and the second arm global shape suitable.
Apply inflatable protective device anti-oxidation in welding process disclosed by the invention, comprising: gas tube; The gas source be connected with gas tube; Also comprise: the charging connector be connected with gas tube, charging connector has an inner chamber, the anti-oxidation inner chamber needing the workpiece carrying out gas-filled protective to be arranged in charging connector in welding process.Make like this to need anti-oxidation and carry out gas-filled protective workpiece completely protect by anti-oxidation gas; do not contact with air; anti-oxidation and the workpiece and air that carry out gas-filled protective isolation effect is needed to strengthen; eliminate the phenomenon occurring oxide skin completely; improve anti-oxidation effect, the workpiece inner wall after welding with do not weld before the same light.
Accompanying drawing explanation
Fig. 1 is the perspective view of charging connector of the present invention;
Fig. 2 is the front view front view of Fig. 1 of the present invention;
Fig. 3 is the top view of Fig. 1 of the present invention;
Fig. 4 is Fig. 1 upward view of the present invention;
Fig. 5 be Y-branch fitting of the present invention with charging connector coordinate schematic diagram;
Fig. 6 is the inflatable protective device that the present invention has multiple charging connector.
Reference numeral: gas tube------10; Charging connector------30; To give vent to anger portion's------40; Gas outlet------41; Port------42; Connecting portion------50; Y-branch fitting------60
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and come to be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments in conjunction with the embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
According to embodiments of the invention; provide inflatable protective device anti-oxidation in a kind of welding process; this inflatable protective device comprises gas tube 10; the gas source be connected with gas tube 10; and the charging connector 30 that to be connected with gas tube 10; charging connector 30 has an inner chamber, needs the anti-oxidation workpiece carrying out gas-filled protective to be arranged in the inner chamber of charging connector 30 in welding process.Make workpiece be inserted in one end in this inflatable protective device charging connector inner chamber like this and outside air is isolated, do not contact with air, eliminate the phenomenon occurring oxide skin completely, the workpiece inner wall after welding with do not weld before the same bright.
More preferably; this inflatable protective device can also comprise the portion of giving vent to anger 40 be connected with gas tube 10; give vent to anger the gas discharge direction in portion 40 towards the direction at the wall place of charging connector 30 inner chamber, air suck-back can be avoided like this to enter in charging connector 30 to cause and need the anti-oxidation workpiece generation oxidative phenomena carrying out gas-filled protective.Because, the gas flowed from bottom to top can produce attraction to extraneous air, this attraction can attract the air of charging connector 30 outside to enter in charging connector 30, so by the direction of the discharge direction of gas towards the wall place of charging connector 30 inner chamber, the gas of discharging to this direction can be made to spread to surrounding, avoid producing attraction to extraneous air.The beneficial effect basis that charging connector 30 produces ensures to eliminate the phenomenon occurring oxide skin completely further.
Wherein preferably first embodiment is: the first end in portion 40 of giving vent to anger is connected with the port 42 on the joint face of gas tube 10 with charging connector 30; Second end relative with the portion of giving vent to anger 40 first end arranges sealing, the sidewall between the first end in the portion of giving vent to anger 40 and the second end is offered at least one gas outlet 41.Certainly, gas outlet 41 also can be multiple, and to accelerate the efficiency of giving vent to anger of gas, the gas of laterally discharging can directly avoid air suck-back.
In the second embodiment, second end in portion 40 of giving vent to anger also can not arrange sealing, as long as give vent to anger, second end in portion 40 is towards the direction bending at the wall place of charging connector 30 inner chamber, also can realize the discharge direction of gas equally towards the direction at the wall place of charging connector 30 inner chamber; In the present embodiment, give vent to anger on the first end in portion 40 and the sidewall of the second end and also can set out gas port 41 further.
Conveniently charging connector 30 is better communicated with gas tube 10, and this inflatable protective device can also comprise connecting portion 50, and connecting portion 50 is for connecting charging connector 30 and gas tube 10.Do not limit in the shape of this connecting portion 50, as long as charging connector 30 and gas tube 10 can be coupled together, more preferably, charging connector 30 is integrally formed with connecting portion 50.Now on charging connector 30 with the joint face of connecting portion 50, be provided with through hole 42, the first end in portion 40 of giving vent to anger is connected with this port 42.
Particularly, in welding process, above-mentioned portion 40 of giving vent to anger is positioned to be needed anti-oxidation and carries out the workpiece of gas-filled protective, makes the inwall of workpiece be among the protection of institute's inflatable body completely, does not contact with extraneous air, avoid occurring oxide skin.
More preferably, above-mentioned portion 40 of giving vent to anger, for tubulose, can certainly be inner other shapes for hollow.The cuboid of such as hollow.
In order to reach the volume production requirement in actual production process, above-mentioned charging connector 30 is set to multiple.More preferably, multiple charging connector 30 is positioned on the sidewall of gas tube 10, and the two ends of gas tube 10 are connected with gas source respectively.After can ensureing to open gas source like this, gas enters from the two ends of gas tube 10 simultaneously and arrives in gas tube 10, through multiple connecting portion 50, port 42 again on charging connector 30 with connecting portion 50 joint face arrives multiple portion 40 of giving vent to anger, last gas multiplely needs gas-filled protective workpiece inner wall by being full of gradually of multiple gas outlet 41 transverse direction of giving vent to anger on portion 40 sidewall, the inner wall protection of workpiece is got up, workpiece is made to be inserted in one end in inflatable protective device inner chamber and outside air is isolated, prevent oxide skin, thus realize welding multiple workpiece simultaneously, reach volume production requirement, increase work efficiency.
Particularly, the above need gas-filled protective to prevent the gas of oxide skin is nitrogen.
The inflatable protective device that the present invention also provides a kind of Y-branch fitting anti-oxidation in welding process; Y-branch fitting 60 is included in house steward soldered in welding process, the first arm and the second arm; house steward, the first arm are connected with the second arm three; described inflatable protective device is all arranged in the described inner chamber of charging connector 30 for the inflatable protective device described in above any one, the first arm and the second arm.The beneficial effect that charging connector 30 brings is described in detail in the above-described embodiments, does not repeat them here.
Particularly, because Y-branch fitting has two arms, portion 40 of therefore giving vent to anger needs two, in welding process, in the first arm that two portions 40 of giving vent to anger lay respectively at Y-branch fitting and the second arm.The corresponding port 42 be connected with each portion 40 first end of giving vent to anger also needs two, arrives two give vent to anger in portion 40 to facilitate nitrogen respectively by two ports 42.Have outside two ports 42 on charging connector 30 with connecting portion 50 joint face or on charging connector 30 and gas tube 10 joint face in other embodiments; the 3rd port can also be had; also directly can be arrived in the first arm of Y-branch fitting and the mouth of pipe of the second arm by the 3rd port to realize nitrogen, play the protective effect of anti-oxidation.
Inner chamber simultaneously for enabling Y-branch fitting better be placed in charging connector 30, needs to ensure that the global shape of the cavity shape of charging connector 30 and the first arm of Y-branch fitting and the second arm mouth of pipe is suitable.The global shape of the first arm and the second arm mouth of pipe is 8-shaped in the present embodiment, and therefore the cavity shape of charging connector 30 also needs to arrange in 8-shaped, to make Y-branch fitting better coordinate with charging connector 30, reaches better gas-filled protective effect.
In describing above, can draw:
1. charging connector of the present invention cavity shape and portion of giving vent to anger number can workpiece concrete shape that is that carry out gas-filled protective be changed and changes according to needing anti-oxidation in welding process.
2. the inside of the associated components that the inflatable protective device in the above embodiments of the present invention uses is hollow structure, passes through from its inside to realize gas.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. an inflatable protective device anti-oxidation in welding process, comprising:
Gas tube (10);
The gas source be connected with described gas tube (10);
It is characterized in that, also comprise:
Charging connector (30), described charging connector (30) is connected with described gas tube (10);
Described charging connector (30) has an inner chamber, needs to carry out the described inner chamber that the anti-oxidation and workpiece of gas-filled protective is arranged in described charging connector (30) in welding process.
2. inflatable protective device according to claim 1; it is characterized in that; also comprise the portion of giving vent to anger (40) be connected with described gas tube (10), described in give vent to anger the gas discharge direction in portion (40) towards the direction at the wall place of described inner chamber.
3. inflatable protective device according to claim 2; it is characterized in that, described in the give vent to anger first end in portion (40) be connected with the port (42) on the joint face of described gas tube (10) with described charging connector (30).
4. inflatable protective device according to claim 3; it is characterized in that; second end relative with described portion of giving vent to anger (40) first end arranges sealing, and the sidewall between the first end and the second end of described portion of giving vent to anger (40) offers at least one gas outlet (41).
5. inflatable protective device according to claim 2, is characterized in that, also comprises connecting portion (50), and described connecting portion (50) is for connecting described charging connector (30) and described gas tube (10).
6. inflatable protective device according to claim 5; it is characterized in that, described in the give vent to anger first end in portion (40) be connected with the port (42) on the joint face of described connecting portion (50) with described charging connector (30).
7. inflatable protective device according to claim 2, is characterized in that, in welding process, described in portion (40) of giving vent to anger be positioned at the described anti-oxidation and workpiece of gas-filled protective of needing to carry out.
8. inflatable protective device according to claim 2, is characterized in that, described in portion (40) of giving vent to anger be tubulose.
9. inflatable protective device according to claim 1, is characterized in that, described charging connector (30) is positioned on the sidewall of described gas tube (10); The two ends of described gas tube (10) are connected with gas source respectively.
10. inflatable protective device according to claim 1, is characterized in that, described charging connector (30) is for multiple.
11. inflatable protective devices according to any one of claim 1-10, it is characterized in that, described gas is nitrogen.
12. 1 kinds of Y-branch fittings need anti-oxidation inflatable protective device in welding process; described Y-branch fitting is included in house steward soldered in welding process, the first arm and the second arm; described house steward, the first arm are connected with the second arm three; it is characterized in that; described inflatable protective device is the inflatable protective device according to any one of claim 1-10, and described first arm and the second arm are all arranged in the described inner chamber of described charging connector (30).
13. inflatable protective devices according to claim 12, is characterized in that, described in portion (40) of giving vent to anger be two, in welding process, in the first arm that described two portions of giving vent to anger (40) lay respectively at Y-branch fitting and the second arm.
14. inflatable protective devices according to claim 12, is characterized in that, the global shape of the cavity shape of described charging connector (30) and the first arm of Y-branch fitting and the second arm is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109005.8A CN104923990A (en) | 2014-03-21 | 2014-03-21 | Inflation protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109005.8A CN104923990A (en) | 2014-03-21 | 2014-03-21 | Inflation protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104923990A true CN104923990A (en) | 2015-09-23 |
Family
ID=54111582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410109005.8A Pending CN104923990A (en) | 2014-03-21 | 2014-03-21 | Inflation protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104923990A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174261A (en) * | 1984-02-21 | 1985-09-07 | Komatsu Ltd | Pipe welding method |
| CN102059436A (en) * | 2010-12-16 | 2011-05-18 | 上海森松制药设备工程有限公司 | Protection device for gas-protective welding |
| CN102699581A (en) * | 2012-01-31 | 2012-10-03 | 昆山华恒焊接股份有限公司 | Welding shielding gas device and pipe fitting connecting piece thereof |
| CN203956352U (en) * | 2014-03-21 | 2014-11-26 | 珠海格力电器股份有限公司 | A kind of inflatable protective device |
-
2014
- 2014-03-21 CN CN201410109005.8A patent/CN104923990A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174261A (en) * | 1984-02-21 | 1985-09-07 | Komatsu Ltd | Pipe welding method |
| CN102059436A (en) * | 2010-12-16 | 2011-05-18 | 上海森松制药设备工程有限公司 | Protection device for gas-protective welding |
| CN102699581A (en) * | 2012-01-31 | 2012-10-03 | 昆山华恒焊接股份有限公司 | Welding shielding gas device and pipe fitting connecting piece thereof |
| CN203956352U (en) * | 2014-03-21 | 2014-11-26 | 珠海格力电器股份有限公司 | A kind of inflatable protective device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |
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| RJ01 | Rejection of invention patent application after publication |