CN104941952B - A kind of method for maintaining of flash-back arrestor - Google Patents
A kind of method for maintaining of flash-back arrestor Download PDFInfo
- Publication number
- CN104941952B CN104941952B CN201510279677.8A CN201510279677A CN104941952B CN 104941952 B CN104941952 B CN 104941952B CN 201510279677 A CN201510279677 A CN 201510279677A CN 104941952 B CN104941952 B CN 104941952B
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- CN
- China
- Prior art keywords
- flash
- back arrestor
- compressed air
- arrestor
- air hose
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Landscapes
- Pipe Accessories (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of method for maintaining for flash-back arrestor used in shipbuilding gas welding, gas cutting or hot work, comprising: 1. installs compressed air joint, the thin diameter steel needle of other end standard one dredging pipeline additional in flash-back arrestor one end to be repaired；2. taking an air hose, one end is connected with the compressed air hose pipeline gas supply device interface of production scene, the compressed air joint connection of the other end and flash-back arrestor；3. opening the switch of the compressed air hose pipeline gas supply device of production scene, ventilate into air hose；4. the rubbish in flash-back arrestor is quickly blown out under the action of compressed air.The present invention improves the frequency of use of flash-back arrestor, extend the service life of flash-back arrestor, it works and the safe drawback such as has been inherently eliminated caused by the drawbacks of flash-back arrestor single is installed and used and buying hour, has reduced production cost and ensure safety production.
Description
Technical field
The invention belongs to the fields such as ship steel structure gas welding or torch operation, be that a kind of complexity that is suitable for has metallic dust
Under the production environment of particle, the method for maintaining of flash-back arrestor in gas welding or gas cutting tool.
Background technique
Welding rod gas welding gas cutting and water can be often used in the production of the manufacturing enterprises such as present shipbuilding, steel construction and pressure vessel
The operations such as fiery bent plate, tool provided in operation require installation flash-back arrestor due to safety concerns.Flash-back arrestor
Position is mounted among acetylene rubber hose and acetylene generator.Usual flash-back arrestor pressing force be divided into low pressure (0.01MPa with
Under) and two kinds of middle pressure type (0.01~0.15MPa)；Hydrolock and dry flashback arrestor can be divided by action principle；By structure
Two kinds of centralization and post formula flash-back arrestor can be divided into.
Shipbuilding, steel construction and pressure vessel enterprise are raw generally in gas supply source using centralized water-sealing back fire arrester
Is produced from scene using pressing flash-back arrestor in dry type, it is every all needing to pacify among welding torch or gas cutting tool acetylene rubber hose and acetylene air supply source
Fill a flash-back arrestor.Often tempering is caused to prevent due to there is small rubbish to block stomata in gas pipeline in actual production
Device blocking or the pressure reasons such as not enough cause flash-back arrestor to be unable to normal use, and user needs often maintenance or frequently more
The flash-back arrestor renewed, and actually need to only remove the rubbish in flash-back arrestor can normal use, cause tempering prevent
The significant wastage of device, production cost constantly rise.
Summary of the invention
It is an object of the invention to overcome deficiency present in original maintenance technique, a kind of maintenance of flash-back arrestor is provided
Method such as has been inherently eliminated caused by the drawbacks of flash-back arrestor single is installed and used and buying hour at works and the safety
Drawback, improves the frequency of use of flash-back arrestor, and reduces production cost and guarantee safety in production.
In order to achieve the above object of the invention, the technical solution of this hair proposes as follows:
A kind of method for maintaining for flash-back arrestor in shipbuilding gas welding, gas cutting or hot work, it is characterized in that,
This method comprises the following steps:
1. installing compressed air joint additional in flash-back arrestor one end to be repaired, compressed air joint prevents from passing through with tempering
It is threadedly coupled, the thin diameter steel needle of other end standard one dredging pipeline；
2. taking an air hose, one end is connected with the compressed air hose pipeline gas supply device interface of production scene, separately
The connection of the compressed air joint of one end and flash-back arrestor；
3. opening the switch of the compressed air hose pipeline gas supply device of production scene, ventilate into air hose, while by steel
Needle is internally put in from the other end of flash-back arrestor, until opening the spring assembly in flash-back arrestor；
After 4. spring assembly is opened, the gas piping in flash-back arrestor starts to penetrate through, under the action of compressed air,
Rubbish in flash-back arrestor is quickly blown out.
It preferably, can be with reverse operating, i.e., to thoroughly remove the rubbish in flash-back arrestor
5. being inflated from another side into flash-back arrestor by compressed air hose pipeline gas supply device, itself has certain pressure
Compressed air is enough to open spring assembly, makes the gas piping in flash-back arrestor, and rubbish therein is blown out.
Compared with prior art, the solution have the advantages that:
Rapid-maintenance is carried out to flash-back arrestor in production scene, the rubbish in flash-back arrestor is thoroughly removed completely,
Traditional special situation fixed point maintenance and frequently replaced is changed, facilitates the operations such as gas cutting and continuously quickly carries out, reduce
Production cost and improve production efficiency.
Detailed description of the invention
Fig. 1 is flash-back arrestor internal structure chart；
Fig. 2 is that flash-back arrestor adds compressed air joint schematic diagram；
Fig. 3 is to dredge pipeline schematic diagram using steel needle；
Fig. 4 is the schematic diagram without using steel needle.
In figure: 1, nut 2, flash-back arrestor external module 3, fire-stopping pipe 4, spring assembly 5, flash-back arrestor internal component
6, pin 7, connector 8, compressed air joint 9, air hose.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described, but protection model of the invention should not be limited with this
It encloses.
Embodiment: for the method for maintaining for the flash-back arrestor that dock production scene uses, include the following steps:
(1) compressed air joint (see Fig. 2) is installed additional in flash-back arrestor (internal structure is shown in Fig. 1) one end, compressed air connects
Head is prevented from using and is threadedly coupled with tempering, the steel needle of other end standard one thin diameter, steel needle diameter 1mm, length 50mm, wherein
One end is coiled into circle.
(2) air hose is taken, one end is connected with the compressed air hose pipeline gas supply device interface of production scene, the other end
With the compressed air joint of flash-back arrestor to being connected, Fig. 3 is seen；
(3) switch for opening live compressed air hose pipeline gas supply device, ventilates into sebific duct, at the same the steel needle of the other end to
The inside of flash-back arrestor is put in, until opening the spring assembly in flash-back arrestor, sees Fig. 1.
(4) after spring assembly opens, the gas piping in flash-back arrestor starts to penetrate through, under the action of compressed air,
Rubbish in flash-back arrestor is quickly removed, and sees Fig. 3.
(5) to thoroughly remove rubbish in flash-back arrestor, can also reverse operating, by compressed air joint from another side to
It is inflated in flash-back arrestor, itself there is the compressed air of certain pressure to be enough to open spring assembly, penetrate through gas circuit, it will wherein
Rubbish blowout, see Fig. 4.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng
It is described the invention in detail according to preferred embodiment, those skilled in the art should understand that, it can be to invention
Technical solution is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
In scope of the presently claimed invention.
Claims (1)
1. a kind of method for maintaining for flash-back arrestor in shipbuilding gas welding, gas cutting or hot work, which is characterized in that should
Method includes the following steps:
1. installing compressed air joint additional in flash-back arrestor one end to be repaired, compressed air joint and tempering prevent from passing through screw thread
Connection, the thin diameter steel needle of other end standard one dredging pipeline, the steel needle diameter 1mm, length 50mm, wherein one section is coiled into
Circle；
2. taking an air hose, one end is connected with the compressed air hose pipeline gas supply device interface of production scene, the other end
It is connect with the compressed air joint of flash-back arrestor；
3. open production scene compressed air hose pipeline gas supply device switch, ventilate into air hose, at the same by steel needle from
The other end of flash-back arrestor is internally put in, until opening the spring assembly in flash-back arrestor；
After 4. spring assembly is opened, the gas piping in flash-back arrestor starts to penetrate through, under the action of compressed air, tempering
Rubbish in preventer is quickly blown out；
5. inflating from another side into flash-back arrestor by compressed air hose pipeline gas supply device, itself there is the compression of certain pressure
Air is enough to open spring assembly, makes the gas piping in flash-back arrestor, and rubbish therein is blown out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279677.8A CN104941952B (en) | 2015-05-28 | 2015-05-28 | A kind of method for maintaining of flash-back arrestor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279677.8A CN104941952B (en) | 2015-05-28 | 2015-05-28 | A kind of method for maintaining of flash-back arrestor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104941952A CN104941952A (en) | 2015-09-30 |
| CN104941952B true CN104941952B (en) | 2019-02-01 |
Family
ID=54157312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510279677.8A Active CN104941952B (en) | 2015-05-28 | 2015-05-28 | A kind of method for maintaining of flash-back arrestor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104941952B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2654804B1 (en) * | 1989-11-21 | 1994-06-03 | Vaneecke Solaronics | METHOD FOR THE AUTOMATIC STOPPING OF A RADIANT BURNER IN THE EVENT OF A TAIL LIGHT AND AUTOMATIC SHUTTERING DEVICE FOR CARRYING OUT THIS METHOD. |
| CN2402917Y (en) * | 1999-12-21 | 2000-10-25 | 张乾明 | Double check valve type dry fire back preventer |
| CN201306731Y (en) * | 2008-09-19 | 2009-09-09 | 内蒙古第一机械制造（集团）有限公司 | Dry-type oxyhydrogen flashback preventer |
| CN201579517U (en) * | 2009-11-02 | 2010-09-15 | 灵宝市金源矿业有限责任公司 | Dry-type liquefied gas temper and over-voltage protector |
| CN203052672U (en) * | 2013-01-04 | 2013-07-10 | 扬州宏诚冶金设备有限公司 | Dry flashback arrestor |
| CN204329021U (en) * | 2014-11-13 | 2015-05-13 | 董宝玉 | A kind of flash-back arrestor |
-
2015
- 2015-05-28 CN CN201510279677.8A patent/CN104941952B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104941952A (en) | 2015-09-30 |
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