CN108655670A - A kind of high pressure stainless steel acetylene filling pipe construction technique - Google Patents
A kind of high pressure stainless steel acetylene filling pipe construction technique Download PDFInfo
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- CN108655670A CN108655670A CN201810545804.8A CN201810545804A CN108655670A CN 108655670 A CN108655670 A CN 108655670A CN 201810545804 A CN201810545804 A CN 201810545804A CN 108655670 A CN108655670 A CN 108655670A
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- pipeline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a kind of high pressure stainless steel acetylene to fill pipe construction technique, includes the following steps：Step 1, the cutting stock number of main pipe；Step 2, retaining wall on slope；Step 3 carries out sub- pipe blanking according to main pipe；Step 4, son of polishing manage outer burr；Step 5 fills son pipe；Step 6, sub- pipe are levelling；Step 7, interior mill pipe；Step 8, filling sizing, spot welding sub- pipe；The group pair of step 9, straight pipe and straight pipe, step 10, pipe fitting, flange group pair；Step 11, pipe fitting fill filler；Step 12, setting pipe factoryization is prefabricated, the invention, and straight pipe is integral-filled：Research and development filling platform, is constructed using integral-filled method, solves the low, phenomenon of poor quality by the sub- tube efficiency of root filling；Integral-filled sub- pipe, sub- pipe arrangement spacing quality is preferable after filling, and without staggeredly collapse phenomenon, and progress is greatly improved, and revolutionizes traditional straight pipe filling construction technology.
Description
Technical field
The present invention relates to acetylene filling Manifold technology field, specially a kind of high pressure stainless steel acetylene fills pipe construction technique.
Background technology
In recent years, Chinese BDO production capacity had occurred from a small scale to the trend of extensive development, BDO device cores
Technique acetylene fill pipe, fill pipe construction belong to new process, and technology content is higher, and associated construction specification, scheme, technology are total
Tie less, and medium is acetylene in managing, and belongs to Class A fuel gas, inflammable and explosive, filling pipe construction quality directly affects and is
The safety in production of system.Existing acetylene fills pipe construction technique, be easy explosion and sub- pipe will appear staggeredly, metaboly, with
Toward tubule fill method is used, workload is bigger, therefore designs a kind of high pressure stainless steel acetylene filling pipe construction technique.
Invention content
The purpose of the present invention is to provide a kind of high pressure stainless steel acetylene to fill pipe construction technique, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：A kind of high pressure stainless steel acetylene filling pipe construction work
Skill includes the following steps：Step 1, the cutting stock number of main pipe；Step 2, retaining wall on slope；Step 3 carries out son according to main pipe
Pipe blanking；Step 4, son of polishing manage outer burr；Step 5 fills son pipe；Step 6, sub- pipe are levelling；Step 7, interior mill pipe；
Step 8, filling sizing, spot welding sub- pipe；The group pair of step 9, straight pipe and straight pipe, step 10, pipe fitting, flange group pair；
Step 11, pipe fitting fill filler；Step 12, setting pipe factoryization are prefabricated；
Wherein in above-mentioned step one,
1) according to material, specification, model the selection of material as defined in pipeline axonometric drawing, prefabrication of tube section blanking should be reasonable；Adjustment section is pressed
According to the length processing of field measurement；
2) the actual measurement size before pipe prefabrication, measurement method should be correct, and data are accurate, avoid returning because of lower wrong size
Work；
3) stainless steel tube cut using special grinding wheel piece, reconditioning；
4) cut surface is answered smooth, and size should correctly and the oxides such as flawless, pipe, burr, convex-concave, necking and slag；
5）Pipe notch end face dip deviation should not exceed the 1% of tube outer diameter, and be not more than 3mm；
6）Pipeline number, length should be identified in time for blanking and prefabricated pipeline section；Under should being marked in corresponding pipeline axonometric drawing
The pipeline section of material；
7）In prefabrication of tube section, finished product material, semi-finished product material and clout should be stacked and neatly carry out mark respectively；
Wherein in above-mentioned step two, joint form:Docking, groove type；V-type, bevel angle：60~65 °, root face；1~
2mm, gap are 0~1mm；
Wherein in above-mentioned step three, first by sub- pipe every 10 bundled with adhesive tape, integral cutting, improve efficiency；Son pipe
Should carry out blanking according to main pipe length and construction part；Cut surface is answered smooth, and size should be correct；
Wherein in above-mentioned step four, after the completion of sub- pipe cutting stock, outer burr of line up etc. is answered to be carried out clearly with sanding machine
Reason is clean；
Wherein in above-mentioned step five, straight pipe is filled with the pipeline of Φ 10 when filling sub- pipe；When filling should at random to
Discharge pipe, sub- tube spacing should be less than 8mm in main pipe；Longer straight pipe uses integral-filled method；
Wherein in above-mentioned step six, boss is made according to main pipe size and filling position, main pipe is sleeved on boss, main pipe
It is sleeved on boss, makes sub- pipe protrusion main pipe 8cm, sub- bottom of the tube is smooth, carries out polishing end face according to actual conditions, one end has been handled
At reprocessing other end；
Wherein in above-mentioned step seven, generally use goes flash removed, a bad processing of small pin for the case pipe inner burr, system using interior grinding machine
Row hook is hooked into as burr to draw；
Wherein in above-mentioned step eight, want spot-welded together between sub- pipe, at most there are one solder joint on every pipe, filling pipe is exhausted
To not allowing loose phenomenon occur, it is subject to all pipe fixations；Number of welds is as few as possible；In order to avoid influencing acetylene stream
Speed；Several points are fixed with inner wall of the pipe spot welding, several cun of main pipe after sub- pipe positioning, the pipe of such as 4 〞 fixes at 4 points, and filling is prevented to manage
It is mobile；
Wherein in above-mentioned step nine, straight pipe and straight pipe group clock synchronization, it is ensured that have gap between filling pipe；Work as pipeline
Open nozzle should be closed in time by having in construction when interruption；Prefabricated pipeline section should be sealed in time, sundries is avoided enter into and block up
Plug；Weld seam non-destructive testing should be timely, avoids the occurrence of phenomenon of doing over again；
Wherein in above-mentioned step ten,
1) pipe and pipe fitting group clock synchronization, inner wall should be concordant, and inner wall unfitness of butt joint is not more than 2mm no more than the 10% of thickness of pipe wall；
2）When flange is installed, flange sealing surface and gasket seal must not have the defects of cut, spot；
3）Flanged joint should be concentric with pipeline, and bolt should be able to freely pass into；Flange bolt answers span centre to arrange；It is answered between Flange Plane
Keeping parallelism, deviation are not greater than the 0.15% of flange outer diameter and are not more than 2mm；The crooked not handy strong tight spiral shell of bump joint
The method of bolt is eliminated；
4）Weldment surfaces externally and internally should be removed totally not less than oil, paint, embroidery, the burr etc. within the scope of 100mm, and end face must not have
The defects of crackle, interlayer；
5）Within the scope of the stainless steel weldment groove each 100mm in both sides, should be taken before welding prevents spatter object from staiing weldment table
The measure in face, preferably uses whiting；
Wherein in above-mentioned step ten one,
1) the position filling stainless steel Raschig ring of leaching etc. is led in pressure gauge, thermometer, emptying：The sub- end surfaces of A apart from exoculation position not
It should be too close；B stainless steel Raschig rings huddle filling, and Raschig ring need not be compacted, pile with naturally；C can not horizontal group after filling out Raschig ring
To pipeline section, make Raschig ring make closure plate, block filler, facilitate group to installation；
2) elbow, threeway, the filling at reduced pipe；Elbow will have one end upward when filling, and filling is huddled with stainless steel Raschig ring,
Raschig ring need not be compacted, and be piled with naturally；
3）The filling of flange carries out blanking according to flange neck size, fills son pipe, after stoppering, wants spot-welded together between sub- pipe,
To prevent filling pipe movement with flange inner wall spot welding after the positioning of sub- pipe, and to ensure sub- end surfaces away from end face of flange suitably away from
From；
4）The filling of valve；A overcurrents, which are the plug valve of gas, to be needed to fill；B makes 6mm wooden units and is put into according to valve internal size
Valve internal, for control sub- end surfaces and valve core chamber away from；Mold is made according to valve specification, then utilizes sub- pipe pipe nipple therefrom
Between to both sides be discharged into valve successively, cutting polishing, levelling, spot welding are carried out after marking；
Wherein in above-mentioned step ten two, establish pipe prefabrication station so that pipe prefabrication be mounted on time, space and tissue
On be completely separated.
According to above-mentioned technical proposal, in step 6, main construction material prepares：Stainless steel plate δ 6mm, stainless steel tube, electric welding
Machine, cutting machine, δ 3mm polyfluortetraethylene plates etc..
According to above-mentioned technical proposal, in step 5, integral-filled method is that have made operation using channel steel, steel plate etc. flat
Platform, tube bank fixture is made using pipeline main pipe clout, and tube bank fixture concentricity is placed one for every 0.5 meter, sub- pipe is filled into
It restrains in fixture, sub- pipe is inserted in main pipe one end, the other end, which is placed, shrinks baffle, pulls baffle by jack, main pipe is made to slide,
Sub- pipe integrally enters in main pipe.
According to above-mentioned technical proposal, in step 2, groove is polished using sanding machine stainless steel special grinding wheel piece.
According to above-mentioned technical proposal, in step 5, often last a few root pipes filling difficulty are big when filling, and when filling can be used
Hand hammer gently taps main pipe, enters convenient for sub- pipe.
According to above-mentioned technical proposal, in step 9, gap is 6mm~8mm.
According to above-mentioned technical proposal, in step 11, distance of the sub- end surfaces away from end face of flange 3mm.
According to above-mentioned technical proposal, in step 1, a section adjustment section should be respectively stayed according to X, Y direction in pipeline axonometric drawing.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention,（1）Straight pipe is integral-filled：Research and development filling is flat
Platform is constructed using integral-filled method, solves the low, phenomenon of poor quality by the sub- tube efficiency of root filling；Integral-filled sub- pipe, filling
Sub- pipe arrangement spacing quality is preferable afterwards, and without staggeredly collapse phenomenon, and progress is greatly improved, and revolutionizes traditional straight tube
Section filling construction technology；（2）Pipe fitting is filled：Pipe fitting purchases finished product, and packing material is changed to Raschig ring, and it is western using drawing to block Raschig ring
Ring closure plate, changes the sub- pipe filling of tradition, and the method that pipe fitting field lofting makes reduces the workloads such as polishing, welding；It has
There is the features such as operating efficiency is high, construction quality is good, easy to operate, changes traditional pipe fitting filling construction technology；（3）Boss is answered
With：Boss is developed according to main pipe size and filling position, main pipe is sleeved on boss, keeps the sub- bottom of the tube in bottom smooth, according to reality
Border situation carries out polishing end face, adjusts sub- tube spacing, welds the processes such as sub- pipe；One end processing is completed, in processing other end；It
Have the characteristics that construction quality is good, easy to operate；（4）BIM technology application：In drawing joint examination, working procedure simulation, 3-D technology
Tell somebody what one's real intentions are, goods and materials and cost control, quality control, stringing measure, welding control measure this several big application points carry out technology explorations with
It breaks through.
Description of the drawings
Fig. 1 is the construction flow chart of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of high pressure stainless steel acetylene filling pipe construction technique includes the following steps：Step 1, main pipe are cut
Cut off material number；Step 2, retaining wall on slope；Step 3 carries out sub- pipe blanking according to main pipe；Step 4, son of polishing manage outer burr；Step
Rapid five, fill son pipe；Step 6, sub- pipe are levelling；Step 7, interior mill pipe；Step 8, filling sizing, spot welding sub- pipe；Step
Nine, the group pair of straight pipe and straight pipe, step 10, pipe fitting, flange group pair；Step 11, pipe fitting fill filler；Step 10
Two, setting pipe factoryization is prefabricated；
Wherein in above-mentioned step one,
1) according to material, specification, model the selection of material as defined in pipeline axonometric drawing, prefabrication of tube section blanking should be reasonable, should be according to pipe
X, Y direction respectively stay a section adjustment section in road axonometric drawing；Adjustment section according to field measurement length processing；
2) the actual measurement size before pipe prefabrication, measurement method should be correct, and data are accurate, avoid returning because of lower wrong size
Work；
3) stainless steel tube cut using special grinding wheel piece, reconditioning；
4) cut surface is answered smooth, and size should correctly and the oxides such as flawless, pipe, burr, convex-concave, necking and slag；
5）Pipe notch end face dip deviation should not exceed the 1% of tube outer diameter, and be not more than 3mm；
6）Pipeline number, length should be identified in time for blanking and prefabricated pipeline section；Under should being marked in corresponding pipeline axonometric drawing
The pipeline section of material；
7）In prefabrication of tube section, finished product material, semi-finished product material and clout should be stacked and neatly carry out mark respectively；
Wherein in above-mentioned step two, joint form:Docking, groove type；V-type, bevel angle：60~65 °, root face；1~
2mm, gap are 0~1mm；Groove is polished using sanding machine stainless steel special grinding wheel piece；
Wherein in above-mentioned step three, first by sub- pipe every 10 bundled with adhesive tape, integral cutting, improve efficiency；Son pipe
Should carry out blanking according to main pipe length and construction part；Cut surface is answered smooth, and size should be correct；
Wherein in above-mentioned step four, after the completion of sub- pipe cutting stock, outer burr of line up etc. is answered to be carried out clearly with sanding machine
Reason is clean；
Wherein in above-mentioned step five, straight pipe is filled with the pipeline of Φ 10 when filling sub- pipe；When filling should at random to
Discharge pipe, sub- tube spacing should be less than 8mm in main pipe；Often last a few root pipes filling difficulty are big when filling, and when filling can be used
Hand hammer gently taps main pipe, enters convenient for sub- pipe, and it is to utilize slot that longer straight pipe, which uses integral-filled method, integral-filled method,
Steel, steel plate etc. have made operating platform, make tube bank fixture using pipeline main pipe clout, will restrain every 0.5 meter of fixture concentricity
One is placed, sub- pipe is filled into tube bank fixture, sub- pipe is inserted in main pipe one end, the other end, which is placed, shrinks baffle, by falling
Chain pulls baffle, so that main pipe is slided, sub- pipe integrally enters in main pipe；
Wherein in above-mentioned step six, boss is made according to main pipe size and filling position, main pipe is sleeved on boss, main pipe
It is sleeved on boss, makes sub- pipe protrusion main pipe 8cm, sub- bottom of the tube is smooth, carries out polishing end face according to actual conditions, one end has been handled
At reprocessing other end, main construction material prepares：Stainless steel plate δ 6mm, stainless steel tube, electric welding machine, cutting machine, δ 3mm are poly-
Tetrafluoroethene plate etc.；
Wherein in above-mentioned step seven, generally use goes flash removed, a bad processing of small pin for the case pipe inner burr, system using interior grinding machine
Row hook is hooked into as burr to draw；
Wherein in above-mentioned step eight, want spot-welded together between sub- pipe, at most there are one solder joint on every pipe, filling pipe is exhausted
To not allowing loose phenomenon occur, it is subject to all pipe fixations；Number of welds is as few as possible；In order to avoid influencing acetylene stream
Speed；Several points are fixed with inner wall of the pipe spot welding, several cun of main pipe after sub- pipe positioning, the pipe of such as 4 〞 fixes at 4 points, and filling is prevented to manage
It is mobile；
Wherein in above-mentioned step nine, straight pipe and straight pipe group clock synchronization, it is ensured that the gap of 6mm~8mm between filling pipe；
Open nozzle should be closed in time when there is interruption in pipeline construction；Prefabricated pipeline section should be sealed in time, avoided enter into miscellaneous
Object and block；Weld seam non-destructive testing should be timely, avoids the occurrence of phenomenon of doing over again；
Wherein in above-mentioned step ten,
1) pipe and pipe fitting group clock synchronization, inner wall should be concordant, and inner wall unfitness of butt joint is not more than 2mm no more than the 10% of thickness of pipe wall；
2）When flange is installed, flange sealing surface and gasket seal must not have the defects of cut, spot；
3）Flanged joint should be concentric with pipeline, and bolt should be able to freely pass into；Flange bolt answers span centre to arrange；It is answered between Flange Plane
Keeping parallelism, deviation are not greater than the 0.15% of flange outer diameter and are not more than 2mm；The crooked not handy strong tight spiral shell of bump joint
The method of bolt is eliminated；
4）Weldment surfaces externally and internally should be removed totally not less than oil, paint, embroidery, the burr etc. within the scope of 100mm, and end face must not have
The defects of crackle, interlayer；
5）Within the scope of the stainless steel weldment groove each 100mm in both sides, should be taken before welding prevents spatter object from staiing weldment table
The measure in face, preferably uses whiting；
Wherein in above-mentioned step ten one,
1) the position filling stainless steel Raschig ring of leaching etc. is led in pressure gauge, thermometer, emptying：The sub- end surfaces of A apart from exoculation position not
It should be too close；B stainless steel Raschig rings huddle filling, and Raschig ring need not be compacted, pile with naturally；C can not horizontal group after filling out Raschig ring
To pipeline section, make Raschig ring make closure plate, block filler, facilitate group to installation；
2) elbow, threeway, the filling at reduced pipe；Elbow will have one end upward when filling, and filling is huddled with stainless steel Raschig ring,
Raschig ring need not be compacted, and be piled with naturally；
3）The filling of flange carries out blanking according to flange neck size, fills son pipe, after stoppering, wants spot-welded together between sub- pipe,
To prevent filling pipe movement with flange inner wall spot welding after the positioning of sub- pipe, and to ensure sub- end surfaces away from end face of flange 3mm away from
From；
4）The filling of valve；A overcurrents, which are the plug valve of gas, to be needed to fill；B makes 6mm wooden units and is put into according to valve internal size
Valve internal, for control sub- end surfaces and valve core chamber away from；Mold is made according to valve specification, then utilizes sub- pipe pipe nipple therefrom
Between to both sides be discharged into valve successively, cutting polishing, levelling, spot welding are carried out after marking；
Wherein in above-mentioned step ten two, establish pipe prefabrication station so that pipe prefabrication be mounted on time, space and tissue
On be completely separated.
Based on above-mentioned, it is an advantage of the current invention that of the invention, it is thinner to fill sub- pipe caliber, when being filled when straight pipe is longer
Sub- pipe will appear deformation, staggeredly phenomenon；In order to avoid this phenomenon, filling platform is developed, integral-filled sub- pipe is carried out, it is sub after filling
Pipe arrangement spacing quality is preferable, and without staggeredly phenomenon, and progress is greatly improved；Operation has been made using channel steel, steel plate etc.
Platform, tube bank fixture is made using pipeline main pipe clout, and tube bank fixture concentricity is placed one for every 0.5 meter, sub- pipe is filled
Into tube bank fixture, sub- pipe is inserted in main pipe one end, the other end, which is placed, shrinks baffle, pulls baffle by jack, main pipe is made to slide
Dynamic, sub- pipe integrally enters in main pipe；Sub- pipe arrangement spacing quality is preferable after filling, and without staggeredly collapse phenomenon, and progress has
Prodigious raising；Boss is made according to main pipe size and filling position, facilitates sub- pipe to go the work such as flash removed, levelling, according to mother
Pipe size and filling position make boss, and main pipe is sleeved on boss, and main pipe is sleeved on boss, make sub- pipe protrusion main pipe 8cm, son
Bottom of the tube is smooth, carries out polishing end face according to actual conditions, one end processing is completed, and in processing other end, solves sub- pipe position
In in main pipe remove deburring operation it is inconvenient the problems such as；Filling Raschig ring effectively reduces tube manufacture, cutting, welding engineering
Amount, reduces the pollution to environment, reduces workload, solve the problems, such as after filling Raschig ring can not horizontal group to pipeline section, solution
Determined after filling Raschig ring can not horizontal group to pipeline section problem；Using BIM technology application：Drawing joint examination, working procedure simulation,
3-D technology tells somebody what one's real intentions are, goods and materials and cost control, quality control, stringing measure, welding control measure this several big application points carry out skills
Art is explored and is broken through.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of high pressure stainless steel acetylene fills pipe construction technique, include the following steps：The cutting stock of step 1, main pipe is compiled
Number；Step 2, retaining wall on slope；Step 3 carries out sub- pipe blanking according to main pipe；Step 4, son of polishing manage outer burr；Step 5 is filled out
Fill sub- pipe；Step 6, sub- pipe are levelling；Step 7, interior mill pipe；Step 8, filling sizing, spot welding sub- pipe；Step 9, straight pipe
With the group pair of straight pipe, step 10, pipe fitting, flange group pair；Step 11, pipe fitting fill filler；Pipeline is arranged in step 12
Batch production is prefabricated；It is characterized in that：
Wherein in above-mentioned step one,
1) according to material, specification, model the selection of material as defined in pipeline axonometric drawing, prefabrication of tube section blanking should be reasonable；Adjustment section is pressed
According to the length processing of field measurement；
2) the actual measurement size before pipe prefabrication, measurement method should be correct, and data are accurate, avoid returning because of lower wrong size
Work；
3) stainless steel tube cut using special grinding wheel piece, reconditioning；
4) cut surface is answered smooth, and size should correctly and the oxides such as flawless, pipe, burr, convex-concave, necking and slag；
5）Pipe notch end face dip deviation should not exceed the 1% of tube outer diameter, and be not more than 3mm；
6）Pipeline number, length should be identified in time for blanking and prefabricated pipeline section；Under should being marked in corresponding pipeline axonometric drawing
The pipeline section of material；
7）In prefabrication of tube section, finished product material, semi-finished product material and clout should be stacked and neatly carry out mark respectively；
Wherein in above-mentioned step two, joint form:Docking, groove type；V-type, bevel angle：60~65 °, root face；1~
2mm, gap are 0~1mm；
Wherein in above-mentioned step three, first by sub- pipe every 10 bundled with adhesive tape, integral cutting, improve efficiency；Son pipe
Should carry out blanking according to main pipe length and construction part；Cut surface is answered smooth, and size should be correct；
Wherein in above-mentioned step four, after the completion of sub- pipe cutting stock, outer burr of line up etc. is answered to be carried out clearly with sanding machine
Reason is clean；
Wherein in above-mentioned step five, straight pipe is filled with the pipeline of Φ 10 when filling sub- pipe；When filling should at random to
Discharge pipe, sub- tube spacing should be less than 8mm in main pipe；Longer straight pipe uses integral-filled method；
Wherein in above-mentioned step six, boss is made according to main pipe size and filling position, main pipe is sleeved on boss, main pipe
It is sleeved on boss, makes sub- pipe protrusion main pipe 8cm, sub- bottom of the tube is smooth, carries out polishing end face according to actual conditions, one end has been handled
At reprocessing other end；
Wherein in above-mentioned step seven, generally use goes flash removed, a bad processing of small pin for the case pipe inner burr, system using interior grinding machine
Row hook is hooked into as burr to draw；
Wherein in above-mentioned step eight, want spot-welded together between sub- pipe, at most there are one solder joint on every pipe, filling pipe is exhausted
To not allowing loose phenomenon occur, it is subject to all pipe fixations；Number of welds is as few as possible；In order to avoid influencing acetylene stream
Speed；Several points are fixed with inner wall of the pipe spot welding, several cun of main pipe after sub- pipe positioning, the pipe of such as 4 〞 fixes at 4 points, and filling is prevented to manage
It is mobile；
Wherein in above-mentioned step nine, straight pipe and straight pipe group clock synchronization, it is ensured that have gap between filling pipe；Work as pipeline
Open nozzle should be closed in time by having in construction when interruption；Prefabricated pipeline section should be sealed in time, sundries is avoided enter into and block up
Plug；Weld seam non-destructive testing should be timely, avoids the occurrence of phenomenon of doing over again；
Wherein in above-mentioned step ten,
1) pipe and pipe fitting group clock synchronization, inner wall should be concordant, and inner wall unfitness of butt joint is not more than 2mm no more than the 10% of thickness of pipe wall；
2）When flange is installed, flange sealing surface and gasket seal must not have the defects of cut, spot；
3）Flanged joint should be concentric with pipeline, and bolt should be able to freely pass into；Flange bolt answers span centre to arrange；It is answered between Flange Plane
Keeping parallelism, deviation are not greater than the 0.15% of flange outer diameter and are not more than 2mm；The crooked not handy strong tight spiral shell of bump joint
The method of bolt is eliminated；
4）Weldment surfaces externally and internally should be removed totally not less than oil, paint, embroidery, the burr etc. within the scope of 100mm, and end face must not have
The defects of crackle, interlayer；
5）Within the scope of the stainless steel weldment groove each 100mm in both sides, should be taken before welding prevents spatter object from staiing weldment table
The measure in face, preferably uses whiting；
Wherein in above-mentioned step ten one,
1) the position filling stainless steel Raschig ring of leaching etc. is led in pressure gauge, thermometer, emptying：The sub- end surfaces of A apart from exoculation position not
It should be too close；B stainless steel Raschig rings huddle filling, and Raschig ring need not be compacted, pile with naturally；C can not horizontal group after filling out Raschig ring
To pipeline section, make Raschig ring make closure plate, block filler, facilitate group to installation；
2) elbow, threeway, the filling at reduced pipe；Elbow will have one end upward when filling, and filling is huddled with stainless steel Raschig ring,
Raschig ring need not be compacted, and be piled with naturally；
3）The filling of flange carries out blanking according to flange neck size, fills son pipe, after stoppering, wants spot-welded together between sub- pipe,
To prevent filling pipe movement with flange inner wall spot welding after the positioning of sub- pipe, and to ensure sub- end surfaces away from end face of flange suitably away from
From；
4）The filling of valve；A overcurrents, which are the plug valve of gas, to be needed to fill；B makes 6mm wooden units and is put into according to valve internal size
Valve internal, for control sub- end surfaces and valve core chamber away from；Mold is made according to valve specification, then utilizes sub- pipe pipe nipple therefrom
Between to both sides be discharged into valve successively, cutting polishing, levelling, spot welding are carried out after marking；
Wherein in above-mentioned step ten two, establish pipe prefabrication station so that pipe prefabrication be mounted on time, space and tissue
On be completely separated.
2. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：It is main in step 6
Construction material is wanted to prepare：Stainless steel plate δ 6mm, stainless steel tube, electric welding machine, cutting machine, δ 3mm polyfluortetraethylene plates etc..
3. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：It is whole in step 5
Body fill method is to have made operating platform using channel steel, steel plate etc., makes tube bank fixture using pipeline main pipe clout, will restrain
Every 0.5 meter of fixture concentricity places one, and sub- pipe is filled into tube bank fixture, sub- pipe is inserted in main pipe one end, the other end is put
Contraction baffle is set, baffle is pulled by jack, so that main pipe is slided, sub- pipe integrally enters in main pipe.
4. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：In step 2, slope
Mouth is polished using sanding machine stainless steel special grinding wheel piece.
5. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：In step 5, fill out
Often last a few root pipes filling difficulty are big when filling, and when filling can gently tap main pipe with hand hammer, enter convenient for sub- pipe.
6. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：In step 9,
Gap is 6mm~8mm.
7. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：In step 11,
Distance of the sub- end surfaces away from end face of flange 3mm.
8. a kind of high pressure stainless steel acetylene according to claim 1 fills pipe construction technique, it is characterised in that：In step 1, answer
A section adjustment section is respectively stayed according to X, Y direction in pipeline axonometric drawing.
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