CN111230427A - Method for manufacturing water pressure sealing cover of large-diameter connecting pipe ball gap of pressure-bearing equipment - Google Patents
Method for manufacturing water pressure sealing cover of large-diameter connecting pipe ball gap of pressure-bearing equipment Download PDFInfo
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- CN111230427A CN111230427A CN202010212645.7A CN202010212645A CN111230427A CN 111230427 A CN111230427 A CN 111230427A CN 202010212645 A CN202010212645 A CN 202010212645A CN 111230427 A CN111230427 A CN 111230427A
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- connecting pipe
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a manufacturing method of a ball-gap water pressure sealing cover of a large-diameter connecting pipe of pressure-bearing equipment, belonging to the technical field of the water pressure sealing cover of the large-diameter connecting pipe of the pressure-bearing equipment such as a boiler, a pressure container and the like, and the manufacturing method of the ball-gap water pressure sealing cover of the large-diameter connecting pipe of the pressure-bearing equipment comprises the following steps: the design structure and the manufacturing method of the hydraulic flat sealing cover of the large-caliber connecting pipe are improved and innovated for a long time, and the waste is changed into valuable and is comprehensively utilized. The invention innovatively invents a water pressure sealing cover with a ball gap: and the material cost is reduced by utilizing the spherical segment-shaped waste excess materials generated by the large-opening gas cutting of the convex seal head of the pressure-bearing equipment.
Description
Technical Field
The invention relates to a method for manufacturing a sealing cover, in particular to a method for manufacturing a ball-gap water pressure sealing cover of a large-diameter connecting pipe of pressure-bearing equipment, and belongs to the technical field of water pressure sealing covers of large-diameter connecting pipes of pressure-bearing equipment such as boilers, pressure containers and the like.
Background
For a long time, although the hydraulic thick plate flat sealing cover welded on the large-caliber connecting pipe of pressure-bearing equipment such as boilers, pressure vessels and the like is simple to manufacture, a large amount of steel plate materials are consumed as shown in figure 1. And the spherical vacancy excess material produced by the large opening of the convex seal head with various diameters, wall thickness sizes and materials of the pressure-bearing equipment can not be utilized and is discarded. The design structure and the manufacturing technology of the hydraulic sealing cover of the large-caliber connecting pipe of the pressure-bearing equipment are single and old, and the economic benefit is poor.
Disclosure of Invention
The invention aims to provide a method for manufacturing a hydraulic pressure sealing cover of a large-caliber connecting pipe segment of pressure-bearing equipment, which aims to solve the problems of single design structure and high material cost of the traditional large-caliber connecting pipe welding hydraulic pressure flat sealing cover of the pressure-bearing equipment.
The method for manufacturing the hydraulic sealing cover of the large-caliber adapter tube segment of the pressure-bearing equipment comprises the following steps:
step one, marking a convex seal head large hole;
step two, gas cutting the large hole of the convex end socket to obtain a raw material of the hydraulic sealing cover with the spherical segment;
turning a welding groove or an excircle of the hydraulic sealing cover of the segment;
fourthly, welding a large-diameter pipe ball water-shortage sealing cover before a water pressure test of the pressure-bearing equipment;
and fifthly, cutting off the hydraulic sealing cover of the ball gap after the hydraulic test of the pressure-bearing equipment.
Preferably: the spherical segment hydraulic sealing cover is spherical segment residual waste generated by the large opening of the convex sealing head of the pressure-bearing equipment and gas cutting.
Compared with the existing product, the invention has the following effects:
the invention independently creates and invents a manufacturing method of a water pressure sealing cover of a large-caliber connecting pipe ball gap of pressure-bearing equipment, which comprises the following steps: the design structure and the manufacturing method of the hydraulic flat sealing cover of the large-caliber connecting pipe are improved and innovated for a long time, and the waste is changed into valuable and is comprehensively utilized. The invention innovatively invents a water pressure sealing cover with a ball gap: and the material cost is reduced by utilizing the spherical segment-shaped waste excess materials generated by the large-opening gas cutting of the convex seal head of the pressure-bearing equipment.
The invention effectively solves the manufacturing problems of single design structure and high material cost of the hydraulic flat sealing cover for welding the large-diameter connecting pipe of the traditional pressure-bearing equipment. By innovating the spherical-segment hydraulic sealing cover, the design structure, the manufacturing technology, the material utilization rate and the economic benefit of the large-caliber connecting pipe welding hydraulic flat sealing cover of the pressure-bearing equipment are optimized and improved. The technology is environment-friendly, green, novel, practical, advanced and feasible.
Drawings
FIG. 1 is a schematic structural diagram of a conventional hydraulic pressure capping structure for a large-caliber connecting pipe;
FIG. 2a is a schematic diagram of a configuration of a hydraulic bulbed closure and coupler assembly with a transition fitting;
FIG. 2b is a schematic diagram of a constant diameter structure of a hydraulic head cover with a transition joint pipe;
FIG. 2c is a schematic diagram of a hydraulic head with a ball segment and a unequal diameter structure with a transition connection tube;
FIG. 3a is a schematic view of a ball-and-socket hydraulic closure and fitting assembly;
FIG. 3b is a schematic view of the isometric structure of the large-diameter pipe and the hydraulic spherical cap;
FIG. 3c is a schematic view of a non-uniform diameter structure of a large-diameter pipe and a ball-gap hydraulic cover;
FIG. 4a is a top view of the ball-cut hydraulic closure and fitting assembly;
FIG. 4b is a top view of the isometric structure of the large-diameter pipe and the hydraulic gland with spherical segment;
FIG. 4c is a top view of the unequal diameter structure of the large-diameter pipe and the hydraulic capping of the ball segment;
FIG. 5 is a schematic view of a conventional hydraulic closure;
FIG. 6 is a schematic view of the large-opening spherical waste of the spherical head;
fig. 7 is a structural schematic diagram of the water pressure sealing cover structure of the large-caliber connecting pipe in the absence of a ball.
In the figure: 1-large-diameter connecting pipe, 2-construction site groove, 3-hydraulic allowance, 4-hydraulic welding line and 5-spherical-segment hydraulic sealing cover.
Detailed Description
Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
As shown in fig. 6 and 7, the method for manufacturing the ball joint hydraulic sealing cover of the large-caliber adapter of the pressure-bearing device comprises the following steps:
step one, marking a convex seal head large hole;
step two, gas cutting the large hole of the convex end socket to obtain a raw material of the hydraulic sealing cover with the spherical segment;
turning a welding groove or an excircle of the hydraulic sealing cover of the segment;
fourthly, welding a large-diameter pipe ball water-shortage sealing cover before a water pressure test of the pressure-bearing equipment;
and fifthly, cutting off the hydraulic sealing cover of the ball gap after the hydraulic test of the pressure-bearing equipment.
Further: the spherical segment hydraulic sealing cover is spherical segment residual waste generated by the large opening of the convex sealing head of the pressure-bearing equipment and gas cutting.
A method for manufacturing a hydraulic sealing cover of a large-caliber adapter of a pressure-bearing device by using water pressure is shown in figures 2 to 4. In fig. 2 to 4, 1 is a large-diameter connecting pipe, 2 is a construction site groove, 3 is a hydraulic allowance, 4 is a hydraulic welding line, and 5 is a segment hydraulic sealing cover (or assembly). The segment hydraulic sealing cover 5 is formed by modifying and processing segment waste materials generated by cutting a large opening of a convex sealing head of a pressure-bearing device by gas cutting.
The hydraulic sealing cover of a large-caliber connecting pipe is shown in figure 3:
the inner diameter Di of the large-diameter connecting pipe is 500mm, Dw is 620mm, the water pressure allowance h is 40mm, and the thickness t of the disposable water pressure sealing cover is 80 mm.
The hydraulic capping material needs to be purchased, and the main process flow is as follows: steel plate purchase → pneumatic cutting blanking of a hydraulic seal cover → car welding groove → hydraulic seal cover before hydraulic test, cutting off the hydraulic seal cover after hydraulic test → processing the groove of the large-caliber adapter tube on the construction site.
Each hydraulic cover consumes 248 kilograms of steel plate material, and the material cost is high.
The invention relates to a method for manufacturing a hydraulic sealing cover of a large-caliber adapter tube segment of a pressure-bearing device. The ball-segment hydraulic sealing cover of the present example Dw 620mm can be processed by using ball-segment waste materials generated by gas cutting of a large open hole with the thickness t1 being 100mm and the specification SR being 1000mm, and the ball-segment waste materials are shown in figures 4 and 5.
The main process flow of the hydraulic capping of the ball segment of the large-diameter connecting pipe comprises the following steps: marking a large opening of a certain spherical end socket, gas cutting → turning a welding bevel of a hydraulic seal cover with a ball lack → loading the hydraulic seal cover with the ball lack before the hydraulic test → cutting off the hydraulic seal cover with the ball lack after the hydraulic test → processing the bevel of a construction site with a large-diameter connecting pipe.
The spherical-segment-shaped waste materials generated by the traditional convex seal head hole opening are utilized to manufacture the large-caliber connecting pipe hydraulic pressure seal cover, 248 kilograms of steel plate materials are saved, and the economic benefit is obvious.
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 (2)
1. The manufacturing method of the hydraulic sealing cover of the large-caliber adapter tube segment of the pressure-bearing equipment is characterized by comprising the following steps of:
step one, marking a convex seal head large hole;
step two, gas cutting the large hole of the convex end socket to obtain a raw material of the hydraulic sealing cover with the spherical segment;
turning a welding groove or an excircle of the hydraulic sealing cover of the segment;
fourthly, welding a large-diameter pipe ball water-shortage sealing cover before a water pressure test of the pressure-bearing equipment;
and fifthly, cutting off the hydraulic sealing cover of the ball gap after the hydraulic test of the pressure-bearing equipment.
2. The manufacturing method of the water pressure sealing cover of the ball segment of the large-caliber adapter tube of the pressure-bearing equipment according to claim 1, is characterized in that: the spherical segment hydraulic sealing cover is spherical segment residual waste generated by the large opening of the convex sealing head of the pressure-bearing equipment and gas cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212645.7A CN111230427A (en) | 2020-03-24 | 2020-03-24 | Method for manufacturing water pressure sealing cover of large-diameter connecting pipe ball gap of pressure-bearing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212645.7A CN111230427A (en) | 2020-03-24 | 2020-03-24 | Method for manufacturing water pressure sealing cover of large-diameter connecting pipe ball gap of pressure-bearing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111230427A true CN111230427A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010212645.7A Pending CN111230427A (en) | 2020-03-24 | 2020-03-24 | Method for manufacturing water pressure sealing cover of large-diameter connecting pipe ball gap of pressure-bearing equipment |
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| CN (1) | CN111230427A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548725A (en) * | 2018-04-04 | 2018-09-18 | 兰州兰石重型装备股份有限公司 | The pressure-measuring method that pressure vessel minor diameter opening is taken over |
| CN110542611A (en) * | 2018-05-29 | 2019-12-06 | 兰州兰石重型装备股份有限公司 | Equipment pressure test adapter tube and pressure test method |
-
2020
- 2020-03-24 CN CN202010212645.7A patent/CN111230427A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548725A (en) * | 2018-04-04 | 2018-09-18 | 兰州兰石重型装备股份有限公司 | The pressure-measuring method that pressure vessel minor diameter opening is taken over |
| CN110542611A (en) * | 2018-05-29 | 2019-12-06 | 兰州兰石重型装备股份有限公司 | Equipment pressure test adapter tube and pressure test method |
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Application publication date: 20200605 |
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| RJ01 | Rejection of invention patent application after publication |