CN112589392A - Multilayer wrapped nitrogen storage tank processing technology - Google Patents
Multilayer wrapped nitrogen storage tank processing technology Download PDFInfo
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- CN112589392A CN112589392A CN202011465313.6A CN202011465313A CN112589392A CN 112589392 A CN112589392 A CN 112589392A CN 202011465313 A CN202011465313 A CN 202011465313A CN 112589392 A CN112589392 A CN 112589392A
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- processing
- laminate
- seal head
- laminated plates
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Classifications
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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
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- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- 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
- B23K2101/12—Vessels
- B23K2101/125—Cans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a multilayer wrapped nitrogen storage tank processing technology, which solves the problem of longer processing period of a nitrogen storage tank, and adopts the technical scheme that: the process comprises the following steps: the method comprises the following steps of end socket processing, laminate processing and laminate wrapping, wherein the end socket processing comprises the following steps: taking a seal head raw material, pressing the seal head, processing a stepped groove on the inner side of the seal head, processing a groove on an inclined plane on the outer side of the seal head, welding and forming the seal head, and performing welding nondestructive testing; the laminate processing comprises the following steps: selecting laminated plates, detecting the laminated plates, cutting and blanking the laminated plates, processing signal holes of the laminated plates, winding the laminated plates into drums and dividing the laminated plates into drum sections; the plywood bandaging comprises the following steps: the inner cylinder body and the cylinder sections are cleaned in a split mode, the cylinder sections are wrapped outside the inner cylinder body in a split mode and are pre-tightened, the cylinder sections are welded in a split mode, and wrapping inspection is conducted; the purpose of shortening the processing period is achieved.
Description
Technical Field
The invention belongs to the technical field of processing of gas storage tanks, and particularly relates to a processing technology of a multilayer bound nitrogen storage tank.
Background
In the technical field of aerospace, a nitrogen storage tank is mostly used for storing gas for tests, and in a nitrogen storage tank manufacturing process, as the thickness of a spherical seal head of a nitrogen storage tank system is large, the period for processing the seal head is long, the integral processing period and progress of the gas storage tank are restricted, the number of layers and sections of a multilayer binding container is large, a traditional binding equipment body is fixed and cannot move, the product is hoisted and circulated, the production auxiliary time is long, the binding efficiency is extremely low, and the production rhythm of batch tasks cannot be met.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multilayer wrapped nitrogen storage tank processing technology which can effectively shorten the processing period.
The purpose of the invention is realized as follows: a multilayer wrapped nitrogen storage tank processing technology comprises an end socket, an inner cylinder and a laminate, and comprises the following steps: end socket processing, laminate processing and laminate binding;
the end socket processing comprises the following steps: taking a seal head raw material, pressing the seal head, processing a stepped groove on the inner side of the seal head, processing a groove on an inclined plane on the outer side of the seal head, welding and forming the seal head, and performing welding nondestructive testing;
the laminate processing comprises the following steps: selecting laminated plates, detecting the laminated plates, cutting and blanking the laminated plates, processing signal holes of the laminated plates, winding the laminated plates into drums and dividing the laminated plates into drum sections;
the plywood bandaging comprises the following steps: the inner cylinder body and the cylinder section are cleaned in a split mode, the cylinder section is wrapped outside the inner cylinder body in a split mode and is pre-tightened, the cylinder section is welded in a split mode, and wrapping inspection is conducted.
The invention is further optimized as follows: the laminate is divided into two semicircular cylindrical sections along the axial direction by the laminate dividing.
The invention is further optimized as follows: the wrapping inspection comprises layer gap inspection and laminate loosening area inspection.
The invention is further optimized as follows: and the shell ring is welded in a split manner, and the shell ring is welded outside the inner cylinder body layer by layer from inside to outside.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that: the groove of the end socket is designed into the step-shaped groove and the inclined plane groove, so that compared with the conventional end socket with the groove which is all the step-shaped groove, the processing time of an end socket machine is saved, and the whole processing period is shortened.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the head of the present invention;
FIG. 3 is a schematic view of a laminate of the present invention.
In the figure: 1-end enclosure, 2-laminate, 3-step groove, 4-inclined plane groove and 5-shell ring sectioning.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a nitrogen gas storage tank processing technology that 30m multilayer was wrapped, including controlling two head 1, interior barrel and plywood 2, 30m nitrogen gas storage tank system of cultivating the trees for the horizontal multilayer wraps the structure, design pressure is 15MPa, hydrostatic test pressure 18MPa, equipment gross weight is 111.265 tons, the jar body has set up DN40mm air inlet, DN80mm gas outlet, DN50mm drain and DN400mm manhole, wherein air inlet and manhole are located left head, gas outlet and drain are located right head, the sealed form of manhole is built-in type, all the other mouths of pipe are flange joint, in addition jar body bottom is provided with the saddle.
The plate of the inner cylinder body adopts a normalizing TI-level super-probing plate, the plate is welded behind a plate winding drum, and a welding structure adopts a V-shaped groove; ultrasonic detection is added by 20% to the T-shaped opening welding line of the inner cylinder body, so that the welding quality is ensured; carrying out heat treatment on the class A welding line of the inner shell ring to eliminate stress; the special measuring tool is adopted to check indexes such as straightness, edge angle, misalignment amount and the like of the inner cylinder body, and the shape precision is ensured to meet the requirements.
The process comprises the following steps: end socket processing, laminate processing and laminate binding;
the end socket processing comprises the following steps: taking a seal head raw material, pressing the seal head, processing a stepped groove 3 on the inner side of the seal head, processing an inclined plane groove 4 on the outer side of the seal head, welding and forming the seal head, and performing welding nondestructive testing, wherein the stepped groove 3 on the inner side of the seal head and the inclined plane groove 4 on the outer side of the seal head are processed by adopting a mechanical processing mode,
the laminate processing comprises the following steps: selecting laminated plate materials, detecting the laminated plates, cutting and blanking the laminated plates, processing laminated plate signal holes, winding a laminated plate drum and dividing the laminated plates into drum section segments 5;
when the laminated plate is selected: the first layer of laminated plates are delta =8mm plates, the other layer of laminated plates are delta =12mm plates, and Q345R plates are selected as materials;
detecting a laminate: carrying out 100% ultrasonic detection on the outermost layer plate, meeting the I-level requirement in the specification of NB/T47013.3, carrying out Charpy-20 ℃ low-temperature impact test on the plate according to batches, wherein KV2 is more than or equal to 41J, detecting that the surface of the plate is not allowed to have the defects of harmful use such as cracks, bubbles, scabs, folds, inclusions and the like, and the side surface of the steel plate cannot be layered; the size, the appearance and the allowable deviation of the steel plate meet the requirements of GB/709, and the allowable deviation of the thickness meets the requirements of B-type deviation in GB/T709; the plate packaging, identification and quality certificate should conform to the regulation of GB/T247;
cutting and blanking of a laminate: the laminate is blanked by gas cutting, the end of the laminate is reserved with a pre-bending amount of 300mm, oxides, slag nodules and splashes are removed after blanking, and the periphery of the laminate is polished smoothly;
processing a signal hole: drilling 4 signal holes with the diameter of 6mm by using a magnetic drill according to the requirements of a drawing, and removing burrs;
the laminated plate winding drum is processed by a plate bending machine, pre-bending is carried out on two ends of a steel plate during winding, and pre-bending amount is removed;
dividing the laminated plate into cylindrical sections: and (3) gas cutting the laminate behind the winding drum into two semicircles along the central line, making a pair mark, removing oxides, slag nodules and splashes, and grinding the periphery to be smooth.
The plywood bandaging comprises the following steps: the inner cylinder body and the cylinder section are cleaned in a split mode, the cylinder section is wrapped outside the inner cylinder body in a split mode and is pre-tightened, the cylinder section is welded in a split mode, and wrapping inspection is conducted.
Wherein, interior barrel and shell ring split clearance: in order to remove scrap iron, oil stains, oxide skin and other sundries on the inner cylinder and all laminate plates;
the shell ring is wrapped outside the inner cylinder body in a split way and is pre-tightened: placing a semicircular cylinder section of the first layer of laminate at a designated position of the inner cylinder body, then placing another semicircular cylinder section matched with the first layer of laminate, and bundling and pre-tightening the two semicircular cylinder sections through a specially-made tool;
split welding of the shell ring: performing tack welding along one axial side of the shell section split to ensure that the gap between the tack welding and the last shell section split is 8-14 mm and is aligned with the tack welding, performing tack welding and longitudinal seam welding, sequentially welding longitudinal and circumferential welding seams, and welding the second layer to the outermost layer;
wrapping and checking: the method comprises the steps of layer gap inspection and laminate looseness area inspection, wherein the layer gap inspection is that the radial gap of adjacent laminates is not qualified when the radial gap of each laminate is measured on the end face of each laminate cylindrical section and is more than or equal to 0.25 mm; the loose area of the laminate is detected as follows, the joint rate is checked by a comparison acoustic method, and the loose area needs to reach the following steps: the length along the circumferential direction is less than or equal to 300mm, and the length along the axial direction is less than or equal to 600 mm.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Claims (4)
1. The multilayer wrapped nitrogen storage tank processing technology comprises a seal head (1), an inner cylinder body and a laminate (2), and is characterized by comprising the following steps: end socket processing, laminate processing and laminate binding;
the end socket processing comprises the following steps: taking a seal head raw material, pressing the seal head, processing a stepped groove (3) on the inner side of the seal head, processing an inclined plane groove (4) on the outer side of the seal head, welding and forming the seal head, and performing welding nondestructive detection;
the laminate processing comprises the following steps: selecting laminated plates, detecting the laminated plates, cutting and blanking the laminated plates, processing laminated plate signal holes, winding the laminated plates into drums and dividing the laminated plates into drum segments (5);
the plywood bandaging comprises the following steps: the inner cylinder body and the cylinder section are cleaned in a split mode, the cylinder section is wrapped outside the inner cylinder body in a split mode and is pre-tightened, the cylinder section is welded in a split mode, and wrapping inspection is conducted.
2. The process of multi-wrapped nitrogen storage tank processing according to claim 1, wherein said laminate division axially divides the laminate into two semicircular shell section halves.
3. The process of multi-layered wrapped nitrogen storage tank according to claim 1, wherein the wrapping tests include a layer gap test and a laminate loose area test.
4. The process for manufacturing a multi-layered wrapped nitrogen storage tank according to claim 1, wherein the shell ring is welded in a split manner, and the shell ring is welded outside the inner cylinder layer by layer from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465313.6A CN112589392A (en) | 2020-12-14 | 2020-12-14 | Multilayer wrapped nitrogen storage tank processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465313.6A CN112589392A (en) | 2020-12-14 | 2020-12-14 | Multilayer wrapped nitrogen storage tank processing technology |
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| Publication Number | Publication Date |
|---|---|
| CN112589392A true CN112589392A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011465313.6A Pending CN112589392A (en) | 2020-12-14 | 2020-12-14 | Multilayer wrapped nitrogen storage tank processing technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007041251A1 (en) * | 2007-08-30 | 2009-03-05 | Khs Ag | Manufacturing process for machines |
| CN201524557U (en) * | 2009-08-20 | 2010-07-14 | 安徽六方深冷股份有限公司 | Whole multi-layer sandwich type urea reactor |
| CN105171347A (en) * | 2015-08-28 | 2015-12-23 | 沈阳航天新光集团有限公司 | Field mounting method for test chamber |
| CN108466013A (en) * | 2018-03-26 | 2018-08-31 | 沈阳航天新光压力容器有限公司 | A kind of preparation method of built-in manhole blind plate high pressure laminate binding vessel |
| CN110355530A (en) * | 2019-07-16 | 2019-10-22 | 安徽扬天金塑新能源装备股份公司 | A kind of welding method of Luo molybdenum steel multilayer wrapping high-pressure container |
-
2020
- 2020-12-14 CN CN202011465313.6A patent/CN112589392A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007041251A1 (en) * | 2007-08-30 | 2009-03-05 | Khs Ag | Manufacturing process for machines |
| CN201524557U (en) * | 2009-08-20 | 2010-07-14 | 安徽六方深冷股份有限公司 | Whole multi-layer sandwich type urea reactor |
| CN105171347A (en) * | 2015-08-28 | 2015-12-23 | 沈阳航天新光集团有限公司 | Field mounting method for test chamber |
| CN108466013A (en) * | 2018-03-26 | 2018-08-31 | 沈阳航天新光压力容器有限公司 | A kind of preparation method of built-in manhole blind plate high pressure laminate binding vessel |
| CN110355530A (en) * | 2019-07-16 | 2019-10-22 | 安徽扬天金塑新能源装备股份公司 | A kind of welding method of Luo molybdenum steel multilayer wrapping high-pressure container |
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Application publication date: 20210402 |