CN102927399B - Pipe fitting for conveying high pressure acetylene - Google Patents
Pipe fitting for conveying high pressure acetylene Download PDFInfo
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- CN102927399B CN102927399B CN201210442435.2A CN201210442435A CN102927399B CN 102927399 B CN102927399 B CN 102927399B CN 201210442435 A CN201210442435 A CN 201210442435A CN 102927399 B CN102927399 B CN 102927399B
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- pipe
- pipe fitting
- tube bank
- acetylene
- high pressure
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Abstract
Disclosed is a pipe fitting for conveying high pressure acetylene. The pipe fitting is characterized in that the pipe fitting comprises a bent pipe, a tee, a tilted tee and a cross; pipe bundles are densely filled in a main pipe, raschig ring fillers are filled in the pipe fitting, sizes of the raschig ring fillers meet the requirement that the maximum straight-line distance of any gap between the fillers and fillers on the plane perpendicular to the flowing direction of the acetylene doesn't exceed 20mm, straight pipe sections at two ends of the pipe fitting are filled with pipe bundles, sizes of the pipe bundles meet the requirement that the maximum straight-line distance of any gap between the pipe bundles and the plane perpendicular to the flowing direction of the acetylene doesn't exceed 20mm, and the main pipe and a flange are welded. The pipe fitting is simple in structure, convenient to process and low in manufacture cost.
Description
Technical field
The present invention relates to a kind of chemical equipment, specifically, relate to a kind of pipe fitting of conveying high-pressure acetylene, such pipe fitting dissolved acetylene and with acetylene be raw material chemical industry in be widely used.
Background technique
Acetylene is a kind of important raw material of industry, its character is active, easy participation or cause the reactions such as such as addition, oxidation, polymerization and metal replacement, can be used for preparing multiple important chemical product, and acetylene is also widely used in illumination, weld and Metal Cutting (oxy arc) etc.Acetylene is the simplest alkynes, and the existence of carbon carbon triple bond makes it very unstable, more easily decomposition explosion occurs, so the safety operation of acetylene is acetylene chemical industry and acetylene dissolve the problem needing in operation extremely to pay close attention to.The founder Walter Reppe of modern acetylene chemical industry once carried out a large amount of acetylene explosive decomposition experiments, summarized the decomposition explosion characteristic of acetylene, proposed the safe handling criterion of acetylene.
At present, China's national regulations, is the high pressure acetylene conveyance conduit of 0.15-2.5MPa for acetylene working pressure, should adopts seamless steel pipe (YB231; YB592, No. 20 steel, with the positive goods state supply of material), bore should more than 20mm.Pipe external diameter is the pipeline of 32mm, and wall thickness is not less than 6mm.Because acetylene under high pressure easily decomposes, if do not suppressed, decomposition can be accelerated until blast.Pipe external diameter is greater than to the pipeline of 32mm, needs to restrain fill pipe with pipe with small pipe diameter, to stop blast by the rapid heat dispersing of filling tube.In general, the diameter of container or pipe is less, then range of explosion is less.When caliber (passage of flame) little to a certain extent time, the heat that sheds of solid cooled surface corresponding to per unit volume flame will be greater than the heat of generation, and flame just can interrupt extinguishing.In construction process, the elbow between high pressure acetylene filling tube pipeline section, threeway, emptying, the tapping of leading pouring etc. must ensure to leave the gap of 6 ~ 8mm, meet acetylene gas and carry out again being uniformly distributed of acetylene gas at above-mentioned pipe fitting place.In the making of elbow, adopt female pipe partly to cut open, after putting into inner tube bank, the female pipe of two halves is welded, or directly by 90 ° of right angle welding, due to the existence of inside tube bank, cannot detect a flaw by butt welded seam, form potential safety hazard.In the working process of threeway, in order to ensure the clearance requirement of workpiece, female for threeway pipe is split into the wedge-shaped opening of V-type, arm is cut into welding after wedge shape, at this moment certain depth requirements is inserted with to the arm of threeway, and between filling tube, also needs the gap of 6 ~ 8mm.Visible, for threeway, emptying, lead the pipe fittings such as pouring, there is long processing time, difficulty of processing is large, the drawbacks such as a large amount of little filling tube of waste can be cut due to processing in working process, estimate that this waste can account for about the l0% of about total amount according to relatively more conservative algorithm.
Summary of the invention
Cannot detect to overcome described existing high pressure acetylene conveying bend weld above, threeway, emptying, lead the pipe fittings such as pouring, long processing time, the problems such as difficulty of processing is large, and little filling tube waste is large, the invention provides a kind of high pressure acetylene conveying pipe fitting, this pipe fitting does not need to detect a flaw to elbow, and effectively can solve threeway, emptying, lead the pipe fitting long processing times such as pouring, the problems such as difficulty of processing is large, and little filling tube waste is large.
The present invention/solve the problems of the technologies described above adopted technological scheme is: it provide a kind of high pressure acetylene conveying pipe fitting, pipe fitting comprises bend pipe, threeway, skew T and four-way, in this pipe fitting, flange, tube bank, Raschig ring, tube bank, flange is connected successively, it is characterized in that: tube bank dense packing effect is in female pipe, pipe fitting fills up Raschig ring filler, described filler size meets any space of filler maximum linear distance in the plane perpendicular with acetylene flow direction and is no more than 20mm, filler material, form is not limit, pipe fitting two ends straight length adopts tube bank to fill, tube bank size meets and on the perpendicular facial plane of acetylene flow direction, any space maximum linear distance is no more than 20mm, Bundle material is not limit, tube bank wall thickness is not limit, female pipe and flange welding.
That is, according to the present invention, the Raschig ring filler differed in size is filled up in high pressure acetylene conveying pipe fitting, in filler, any space maximum linear distance is no more than 20mm, filler material, form is not limit, the Raschig ring of general employing diameter phi 6 × 6mm or φ 8 × 8mm, at high pressure acetylene conveying pipe fitting bend pipe two ends straight length, threeway, four-way, emptying, the straight tube of leading the pipe fittings such as pouring adopts tube bank to fill, tube bank size should meet with the perpendicular facial plane in acetylene bulk flow direction on arbitrarily space maximum linear distance be no more than 20mm, Bundle material is not limit, general employing diameter is 6 or 8mm, tube bank directly contacts with filler, female pipe and flange welding.Reach high pressure acetylene safe transport, pipe fitting is easy to processing, the object shortening process time and cut the waste.
In the present invention, the tube bank of filling in the straight length of pipe fitting two ends flushes with bend pipe straight length the inner.In described threeway, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.In described four-way, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.In described skew T, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.
From above-mentioned, in high pressure acetylene conveying pipe fitting of the present invention, with the tube bank of filling Raschig ring filler Substitute For Partial, simplify the structure, make it to be easy to processing, decrease the waste of material, and the safe transport of high pressure acetylene gas can be realized, its advantage is apparent.
Accompanying drawing explanation
Fig. 1 is the longitudinal section tectonic maps of bend pipe in high pressure acetylene conveying pipe fitting.
Fig. 2 is the longitudinal section tectonic maps of threeway in high pressure acetylene conveying pipe fitting.
Fig. 3 is the longitudinal section tectonic maps of skew T in high pressure acetylene conveying pipe fitting.
Fig. 4 is the longitudinal section tectonic maps of four-way in high pressure acetylene conveying pipe fitting.
In above-mentioned figure, centre is depicted as Raschig ring filler, and two end part vertical bar is depicted as tube bank filler.Tube end is adpting flange.
The implication of number in the figure is: 1-high pressure acetylene conveying pipe fitting; 2-adpting flange; 3-tube bank; 4-Raschig ring.
Embodiment
By embodiment, the present invention is further described in detail below, but the present invention is never confined to these embodiments.
In described each embodiment, each pipe fitting is all with using seamless steel pipe (YB231; YB592, No. 20 steel) process.Described Raschig ring filler is formed by plastic processing, and specification is φ 6 × 6mm.
Embodiment 1
See Fig. 1, this is the longitudinal section tectonic maps of bend pipe in high pressure acetylene conveying pipe fitting.Wherein as shown in the figure, be connected successively, tube bank flushes with flanged surface near flange end for flange 2, the female pipe of tube bank, tube bank 3, filler 4 etc.Filler adopts φ 6 × 6mm plastics Raschig ring, restrains female pipe external diameter 500mm, female thickness of pipe wall 12mm; Tube bank external diameter 10mm, tube bank wall thickness 0.5mm, Bundle material is stainless-steel thin-wall pipe; Under acetylene pressure 2.5MPa, through the trial run of 6 months, this pipe fitting normal operation.
Embodiment 2
See Fig. 2, this is the longitudinal section tectonic maps of threeway in high pressure acetylene conveying pipe fitting.Wherein the female pipe-in-pipe bundle of arm and filler contact jaw are not more than 10mm with the female pipe outer wall spacing of supervisor.Filler adopts φ 6 × 6mm plastics Raschig ring, restrains female pipe external diameter 500mm, female thickness of pipe wall 12mm; Tube bank external diameter 10mm, tube bank wall thickness 0.5mm, Bundle material is stainless-steel thin-wall pipe; The female pipe-in-pipe bundle of arm flushes with the female pipe outer wall of supervisor with filler contact jaw, under acetylene pressure 2.5MPa, through the trial run of 6 months, and this pipe fitting normal operation.
Embodiment 3
See Fig. 3, this is the longitudinal section tectonic maps of skew T in high pressure acetylene conveying pipe fitting.Wherein any one angle between the desirable 0-90 of angle ° between inclined tube and straight tube, specifically determines according to technological requirement.Between the inclined tube adopted in this example and straight tube, angle is 30 ° and 60 °.Filler adopts φ 6 × 6mm plastics Raschig ring, restrains female pipe external diameter 500mm, female thickness of pipe wall 12mm; Tube bank external diameter 10mm, tube bank wall thickness 0.5mm, Bundle material is stainless-steel thin-wall pipe; Under acetylene pressure 2.5MPa, through the trial run of 6 months, this pipe fitting normal operation.
Embodiment 4
See Fig. 4, this is the longitudinal section tectonic maps of four-way in high pressure acetylene conveying pipe fitting.Using the larger female pipe of external diameter as supervisor, and be responsible for the two sections of arms be communicated with and can take different calibers, specifically determine according to technological requirement.In this example, filler adopts φ 6 × 6mm plastics Raschig ring, supervisor's external diameter 500mm, wall thickness 12mm; Be responsible for two sections of arm external diameter 300mm, tube bank external diameter 10mm, tube bank wall thickness 0.5mm, Bundle material is stainless-steel thin-wall pipe; Under acetylene pressure 2.5MPa, through the trial run of 6 months, this pipe fitting normal operation.
Claims (5)
1. a high pressure acetylene conveying pipe fitting, is characterized in that: pipe fitting comprises bend pipe, threeway and four-way, in the tube, flange, tube bank, Raschig ring filler, tube bank is connected successively with flange, tube bank dense packing effect is in female pipe, the Raschig ring filler differed in size is filled up in pipe fitting, described Raschig ring filler size meets any space of filler maximum linear distance in the plane perpendicular with acetylene flow direction and is no more than 20mm, Raschig ring filler material, form is not limit, pipe fitting two ends straight length adopts tube bank to fill, tube bank size meets and on the perpendicular facial plane of acetylene flow direction, any space maximum linear distance is no more than 20mm, Bundle material is not limit, female pipe and flange welding, the tube bank of filling in described bend pipe two ends straight length flushes with pipe fitting straight length the inner.
2. high pressure acetylene conveying pipe fitting according to claim 1, is characterized in that, described threeway is skew T.
3. high pressure acetylene conveying pipe fitting according to claim 1, is characterized in that, in described threeway, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.
4. high pressure acetylene conveying pipe fitting according to claim 2, is characterized in that, in described skew T, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.
5. high pressure acetylene conveying pipe fitting according to claim 1, is characterized in that, in described four-way, the tube bank be filled in arm is not more than 10mm apart from female inner tube wall spacing, and female pipe two ends tube bank distance branch pipe wall spacing is not more than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210442435.2A CN102927399B (en) | 2012-11-08 | 2012-11-08 | Pipe fitting for conveying high pressure acetylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210442435.2A CN102927399B (en) | 2012-11-08 | 2012-11-08 | Pipe fitting for conveying high pressure acetylene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927399A CN102927399A (en) | 2013-02-13 |
| CN102927399B true CN102927399B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210442435.2A Expired - Fee Related CN102927399B (en) | 2012-11-08 | 2012-11-08 | Pipe fitting for conveying high pressure acetylene |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655670A (en) * | 2018-05-31 | 2018-10-16 | 山西省工业设备安装集团有限公司 | A kind of high pressure stainless steel acetylene filling pipe construction technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2136732A1 (en) * | 1971-07-22 | 1973-02-01 | Linde Ag | DEVICE FOR STORING A GAS IN A SOLVENT |
| DE102006001417A1 (en) * | 2006-01-10 | 2007-07-12 | Endress + Hauser Flowtec Ag | Device for deflecting a medium flowing in a pipeline |
| CN201710987U (en) * | 2010-04-22 | 2011-01-19 | 吴佳栋 | Raschig ring filler |
| CN202937942U (en) * | 2012-11-08 | 2013-05-15 | 上海天森辰业化工工程技术有限公司 | Pipe fitting for delivering high pressure acetylene |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54137117A (en) * | 1978-04-15 | 1979-10-24 | Matsushita Electric Works Ltd | Gutter elbow |
-
2012
- 2012-11-08 CN CN201210442435.2A patent/CN102927399B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2136732A1 (en) * | 1971-07-22 | 1973-02-01 | Linde Ag | DEVICE FOR STORING A GAS IN A SOLVENT |
| DE102006001417A1 (en) * | 2006-01-10 | 2007-07-12 | Endress + Hauser Flowtec Ag | Device for deflecting a medium flowing in a pipeline |
| CN201710987U (en) * | 2010-04-22 | 2011-01-19 | 吴佳栋 | Raschig ring filler |
| CN202937942U (en) * | 2012-11-08 | 2013-05-15 | 上海天森辰业化工工程技术有限公司 | Pipe fitting for delivering high pressure acetylene |
Non-Patent Citations (2)
| Title |
|---|
| 乙炔管道的安全输送问题讨论;邹大伟;《石河子科技》;20120430;正文第2章第4段、第3章第1段 * |
| 高压乙炔填充管道;周育童;《维伦通讯》;20090905;第29卷(第3期);正文第2章第2节第1-5段、第2章第3-4节，图2、5、6 * |
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| CN102927399A (en) | 2013-02-13 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Yixin Inventor after: Si Peng Inventor after: Guo Dong Inventor after: Wang Yinliang Inventor after: Lin Tiejun Inventor before: Lu Yixin Inventor before: Si Peng Inventor before: Guo Dong Inventor before: Wang Yinliang Inventor before: Lin Tiejun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20161108 |