CN110142008B - Synthetic tower supporting cylinder and manufacturing method thereof - Google Patents
Synthetic tower supporting cylinder and manufacturing method thereof Download PDFInfo
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- CN110142008B CN110142008B CN201910482024.8A CN201910482024A CN110142008B CN 110142008 B CN110142008 B CN 110142008B CN 201910482024 A CN201910482024 A CN 201910482024A CN 110142008 B CN110142008 B CN 110142008B
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- supporting cylinder
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- support cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
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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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- Engineering & Computer Science (AREA)
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- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a synthetic tower support cylinder and a manufacturing method thereof, and aims to solve the problems of high material consumption, poor surface quality of an opening of a synthetic gas outlet and low drilling efficiency caused by a design and manufacturing method that the conventional support cylinder adopts whole-plate blanking, dense hole drilling, roll welding forming and manual plasma cutting of the opening of the synthetic gas outlet. The invention innovatively discloses a design and manufacturing method for double-longitudinal-seam nesting processing of a supporting cylinder, overlapped drilling of dense holes and numerical control plasma cutting of an outlet opening of synthesis gas. The method achieves the purposes of improving the utilization rate of the material of the support cylinder of the synthesis tower, reducing the manufacturing cost and improving the surface quality of the product.
Description
Technical Field
The invention relates to a design and manufacturing method of a support cylinder, in particular to a support cylinder of a synthesis tower and a manufacturing method thereof, belonging to the technical field of ethylene glycol synthesis towers and design and manufacturing technology of cylinder internals with the same structure as pressure-bearing equipment.
Background
For a long time, the stainless steel support cylinder body of the refractory ball catalyst of the ethylene glycol synthetic tower or the synthetic reactor is not provided with a pressure-free internal part, round holes with phi 12-24 mm are densely and squarely arranged, and a large-size semicircular hole is used as a synthetic gas outlet channel. The existing method always adopts the manufacturing method of blanking the whole plate of the cylinder body, processing dense holes, rolling, manually cutting and grinding the semicircular holes by plasma, and has the disadvantages of large material consumption, poor surface quality of the semicircular holes and low drilling efficiency. The design structure and the manufacturing technology of the support cylinder of the synthesis tower are single and backward, and the economic benefit is poor.
Disclosure of Invention
The invention aims to provide a support cylinder of a synthesis tower, which solves the problems of large material consumption, poor surface quality of a synthesis gas outlet and low drilling efficiency of the existing support cylinder which is processed by a whole plate.
Preferably: the synthesis tower supporting cylinder comprises a first supporting cylinder and a second supporting cylinder;
the first supporting cylinder and the second supporting cylinder are connected end to form a cylindrical cylinder, a synthetic gas outlet is formed in the cylindrical cylinder and is a semicircular hole, a connecting seam right above the synthetic gas outlet is a short longitudinal seam, and a connecting seam opposite to the short longitudinal seam is a long longitudinal seam.
Preferably: the dense holes of the first supporting cylinder and the second supporting cylinder are processed by overlapped drilling.
Preferably: the syngas outlet opening was cut using a digitally controlled plasma during blanking of steel sheet 1/2.
Preferably: the directions of the cutting surfaces of the holes of the synthesis gas outlet are all vertical to the surface of the steel plate, but not parallel to the direction of the central line of the synthesis gas outlet.
The manufacturing method of the synthetic tower supporting cylinder comprises the following steps:
step a, cutting 1/2 blanking by numerical control plasma; comprises a syngas outlet opening;
b, planning a longitudinal ring groove;
c, stacking the plates of the first support cylinder and the second support cylinder, and scribing, drilling dense holes and disassembling the uppermost plate;
d, welding a connecting longitudinal joint A1 of the first supporting cylinder and the second supporting cylinder;
step e, pre-bending the edges of the steel plates at two ends of the longitudinal joint A2; pre-bending two ends of the first supporting cylinder and the second supporting cylinder which are connected together;
step f, rolling; rolling the pre-bent first supporting cylinder and the pre-bent second supporting cylinder to make the first supporting cylinder and the second supporting cylinder cylindrical;
step g, welding A2 longitudinal seams; finally welding the first support cylinder and the second support cylinder after being rolled;
step h, finishing the processing; wait for final assembly
Compared with the existing product, the invention has the following effects:
the invention thoroughly solves the problems of single and backward manufacturing method, low production efficiency, poor economic benefit and the like of the traditional synthetic tower supporting cylinder body. The design structure and the manufacturing technology of the supporting cylinder body are innovated and optimized. Novel, practical, advanced and reliable. Relates to the design and manufacture technology of a refractory ball supporting cylinder body of an ethylene glycol synthetic tower and a cylinder body with a structure similar to pressure-bearing equipment.
The numerical control machine tool simultaneously processes two 1/2 cylinders, is convenient and fast, saves time and materials, can greatly reduce the consumption rate of materials, and can ensure that the surface of a hole is vertical to the surface of the cylinder by pre-processing a synthetic gas outlet.
Drawings
FIG. 1 is a schematic structural view of a prior art support cylinder;
FIG. 2 is a steel plate blanking diagram of a conventional support cylinder;
FIG. 3 is a top view of a single longitudinal seam of a prior art support cylinder;
FIG. 4 is a front view of a support barrel synthesizer outlet opening of an embodiment of the present invention;
FIG. 5 is a side view of a support cylinder of an embodiment of the present invention;
FIG. 6 is a top view of a double longitudinal seam of a support cylinder according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a support cylinder steel plate numerically controlled plasma 1/2 cutting blanking layout according to an embodiment of the invention;
FIG. 8 is a schematic diagram showing the positional relationship between the longitudinal A1 slit and the longitudinal A2 slit of the present invention.
In the figure: 1-a first support cylinder; 2-a syngas outlet; 3-long longitudinal seam; 4-short longitudinal seam; 5-a circular hole; 6-second support cylinder.
Detailed Description
Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
As shown in fig. 4 to 6, the support cylinder of the synthesis tower of the present invention comprises a first support cylinder 1 and a second support cylinder 6;
The manufacturing method of the support cylinder of the synthesis tower, as shown in fig. 7 and 8, comprises the following steps:
step a, cutting 1/2 blanking by numerical control plasma; comprises an opening of a synthesis gas outlet 2;
b, planning a longitudinal ring groove;
c, stacking the plates of the first support cylinder 1 and the second support cylinder 6, and scribing, drilling dense holes and disassembling the uppermost plate;
d, welding a connecting longitudinal joint A1 of the first supporting cylinder 1 and the second supporting cylinder 6;
step e, pre-bending the edges of the steel plates at two ends of the longitudinal joint A2; pre-bending two ends of the first supporting cylinder 1 and the second supporting cylinder 6 which are connected together;
step f, rolling; rolling the pre-bent first supporting cylinder 1 and the pre-bent second supporting cylinder 6 to enable the first supporting cylinder 1 and the second supporting cylinder 6 to be cylindrical;
step g, welding A2 longitudinal seams; finally welding the first support cylinder 1 and the second support cylinder 6 after being rolled;
step h, finishing the processing; and waiting for final assembly.
Compared with the prior art and the process of the application,
the prior art comprises the following steps: the stainless steel supporting cylinder body Dn is 1700mm, the plate thickness is 20mm, the height H is 800mm, the diameter d of the dense circular holes is 20mm, the center distance L between the adjacent circular holes is 33mm, the number of the holes is 3000, the middle diameter expansion size L is 5404mm, the longitudinal seam A1, the large hole R1 is 600mm, and the consumption material is 700 kg.
The main process flow of the supporting cylinder body is as follows: cutting and blanking the whole numerical control plasma plate, reserving machine allowance on the periphery → correcting the steel plate → marking peripheral machine line and drilling line → planning the longitudinal ring groove → drilling dense holes → pre-bending the edges of the two ends of the steel plate → rolling plate, rolling circle → welding longitudinal seam → checking circle → marking large hole line, manually cutting and grinding large hole by the numerical control plasma → waiting for final assembly. Low drilling efficiency and material utilization rate, and poor surface quality of macropores.
The process of the invention comprises the following steps: the supporting cylinder body adopts double longitudinal seams A1 and A2(200mm), the radius R2 of a large hole is 600mm, the nesting length L1 of a steel plate blank is 4750mm, and 634 kilograms of consumed materials are adopted.
The main process flow of the supporting cylinder body is as follows: according to the developed diagram, the blanking of 1/2 is numerically controlled and plasma cut, which comprises the steps of opening a synthetic gas outlet → digging a longitudinal ring groove → straightening a steel plate → two plates are overlapped, scribing, drilling dense holes, disassembling → installing and welding A1 longitudinal seam → edge of steel plate at two ends of a preflex welding seam A2 → rolling → installing and welding A2 longitudinal seam → waiting for final assembly.
The production efficiency of the supporting cylinder body is improved by 30 percent, the material consumption is reduced by 11 percent, and the surface quality and the economic benefit are obviously improved.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (3)
1. The synthetic tower supports the barrel, its characterized in that: comprises a first supporting cylinder body (1) and a second supporting cylinder body (6);
the first supporting cylinder body (1) and the second supporting cylinder body (6) are connected with the head part and the tail part respectively to form a cylindrical cylinder body, a synthesis gas outlet (2) is formed in the cylindrical cylinder body, the synthesis gas outlet (2) is a semicircular hole, a connecting seam right above the synthesis gas outlet (2) is a short longitudinal seam (4), a connecting seam opposite to the short longitudinal seam (4) is a long longitudinal seam (3), and each point of a cutting surface of the semicircular hole is perpendicular to the outer surfaces of the first supporting cylinder body (1) and the second supporting cylinder body (6).
2. The synthesis tower support cylinder according to claim 1, wherein: the first supporting cylinder body (1) and the second supporting cylinder body (6) are densely distributed with regularly arranged round holes (5).
3. A method of manufacturing a support cylinder for a synthesis tower according to claim 1, comprising the steps of:
step a, cutting 1/2 blanking by numerical control plasma; comprises an opening of a synthesis gas outlet (2);
b, planning a longitudinal ring groove;
c, overlapping the plates of the first support cylinder (1) and the second support cylinder (6), and scribing, drilling dense holes and disassembling the uppermost plate;
d, welding a connecting longitudinal seam A1 of the first supporting cylinder body (1) and the second supporting cylinder body (6);
step e, pre-bending the edges of the steel plates at two ends of the longitudinal joint A2; pre-bending two ends of a first supporting cylinder (1) and a second supporting cylinder (6) which are connected together;
step f, rolling; rolling the pre-bent first supporting cylinder body (1) and the pre-bent second supporting cylinder body (6) to enable the first supporting cylinder body (1) and the second supporting cylinder body (6) to be cylindrical;
step g, welding A2 longitudinal seams; finally welding the first support cylinder (1) and the second support cylinder (6) after being rolled;
step h, finishing the processing; and waiting for final assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482024.8A CN110142008B (en) | 2019-06-04 | 2019-06-04 | Synthetic tower supporting cylinder and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482024.8A CN110142008B (en) | 2019-06-04 | 2019-06-04 | Synthetic tower supporting cylinder and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN110142008A CN110142008A (en) | 2019-08-20 |
| CN110142008B true CN110142008B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910482024.8A Active CN110142008B (en) | 2019-06-04 | 2019-06-04 | Synthetic tower supporting cylinder and manufacturing method thereof |
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| CN112975296A (en) * | 2021-03-08 | 2021-06-18 | 哈尔滨汽轮机厂有限责任公司 | Manufacturing method of 300 MW-grade F-grade reburning combustion chamber transition section liner rear sealing ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140006U (en) * | 2016-08-30 | 2017-05-03 | 哈尔滨锅炉厂有限责任公司 | Boiler and pressure vessel heavy -calibre are cut sth. askew and are managed novel pair of longitudinal joint structure |
| CN107263031A (en) * | 2017-06-26 | 2017-10-20 | 山东美陵化工设备股份有限公司 | Cylinder is without pre-bending edge rolling moulding process |
| CN108098276A (en) * | 2017-12-28 | 2018-06-01 | 哈尔滨锅炉厂有限责任公司 | The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over |
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- 2019-06-04 CN CN201910482024.8A patent/CN110142008B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140006U (en) * | 2016-08-30 | 2017-05-03 | 哈尔滨锅炉厂有限责任公司 | Boiler and pressure vessel heavy -calibre are cut sth. askew and are managed novel pair of longitudinal joint structure |
| CN107263031A (en) * | 2017-06-26 | 2017-10-20 | 山东美陵化工设备股份有限公司 | Cylinder is without pre-bending edge rolling moulding process |
| CN108098276A (en) * | 2017-12-28 | 2018-06-01 | 哈尔滨锅炉厂有限责任公司 | The production method that power station oxygen-eliminating device HP heater drainage device kidney slot is taken over |
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| CN110142008A (en) | 2019-08-20 |
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