CN109630680B - Wedge ring assembling method in thin-wall shell sealing plug - Google Patents
Wedge ring assembling method in thin-wall shell sealing plug Download PDFInfo
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- CN109630680B CN109630680B CN201811576420.9A CN201811576420A CN109630680B CN 109630680 B CN109630680 B CN 109630680B CN 201811576420 A CN201811576420 A CN 201811576420A CN 109630680 B CN109630680 B CN 109630680B
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- cushion block
- strip
- flat copper
- positioning pin
- thin
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a wedge ring assembling method in a thin-wall shell sealing plug, which solves the problem of how to assemble a wedge ring between the plug and a thin-wall shell port to resist high water pressure in a water pressure test. The rectangular cushion block is characterized in that a lower square strip-shaped groove (3) is formed in the top surface of a lower rectangular cushion block (1), an upper square strip-shaped groove (4) is formed in the lower bottom surface of an upper rectangular cushion block (2), an upper rectangular cushion block (2) is arranged on the upper top surface of the lower rectangular cushion block (1), flat copper strips (7) are movably arranged in a strip-shaped through hole groove formed by the lower square strip-shaped groove (3) and the upper strip-shaped groove (4), positioning pin inserting through holes (5) are formed in the top surface of the upper rectangular cushion block (2) at equal intervals, the lower ends of the positioning pin inserting through holes (5) are communicated with the upper strip-shaped groove (4), and positioning pins (8) are movably inserted into the positioning pin inserting through holes (5). The pressing requirement of the hydrostatic test of the thin-wall shell is met.
Description
Technical Field
The invention relates to an assembly tool for carrying out a hydrostatic test on a thin-wall shell, in particular to an assembly tool and an assembly method for carrying out assembly on a wedge ring on a sealing plug after the sealing plug is arranged on a port of the thin-wall shell when the thin-wall shell is subjected to the hydrostatic test.
Background
After the thin-walled shell is machined, a 20 mpa hydrostatic test is performed to detect leakage, damage, or other anomalies in the shell. Because the thin-wall shell is a pipe product, one end of the thin-wall shell is a seal head, when a hydraulic pressure is tested, a sealing plug is required to be arranged at the other end of the shell to seal the inner cavity of the shell, because the inner wall of the thin-wall shell is a smooth surface and can not be provided with threads, the common threaded connection plug can not be implemented, and the corresponding sealing plug is designed on site to realize the connection between the plug and the shell, three grooves are arranged on the outer side surface of the sealing plug, O-shaped sealing rings are assembled in the two grooves on the inner side, the plug provided with the two sealing rings is assembled on the other port of the shell, and then inserting a copper assembling wedge ring between the plug and the inner side wall of the other end opening of the shell through a wedge ring assembling opening reserved on the plug, so that the plug and the other end opening of the shell form a wedge-shaped tight fit to ensure the reliable sealing of the plug during a high water pressure test in the shell. The wedge ring is an annular sealing body formed by inserting a copper flat copper strip into a third groove of the plug, the head of the flat copper strip is 1 mm thick and 1.5 mm wide, the middle part of the flat copper strip is 1.36 mm thick and 3 mm wide and 244 mm long, and the length of the flat copper strip is greater than the perimeter of the third groove on the plug, so that two ends of the flat copper strip are provided with margins after the flat copper strip is arranged in one circle of the plug; however, since the flat copper strip is narrow in width, thin in thickness and long in insertion length, how to insert the flat copper strip into the third groove through the assembly opening of the plug, which is communicated with the third groove, makes the plug and the thin-wall opening form a wedge-shaped tight fit to resist high water pressure, and becomes a difficult problem to be solved urgently on site.
Disclosure of Invention
The invention provides a wedge ring assembling tool and a wedge ring assembling method in a thin-wall shell sealing plug, and solves the technical problem of how to assemble a wedge ring between the plug and a thin-wall shell port to resist high water pressure in a water pressure test.
The invention solves the technical problems by the following technical scheme:
a wedge ring assembly fixture in a thin-wall shell sealing plug comprises a lower rectangular backing plate block, an upper rectangular backing plate block, a thin-wall shell, a plug and a flat copper strip, wherein the plug is arranged on a plugging port of the thin-wall shell, a first sealing ring embedding groove, a second sealing ring embedding groove and a wedge ring embedding groove are respectively arranged on the outer side surface of the plug, a flat copper strip inserting port is arranged on the side wall of the thin-wall shell outside the plugging port of the thin-wall shell, the flat copper strip inserting port is communicated with the wedge ring embedding groove, a lower square strip groove is arranged on the top surface of the lower rectangular backing plate block, an upper strip groove is arranged on the lower bottom surface of the upper rectangular backing plate block, the upper rectangular backing plate block is arranged on the upper top surface of the lower rectangular backing plate block, a connecting bolt connects the lower rectangular backing plate block with the upper rectangular backing plate block, and the lower strip groove is arranged corresponding to the upper strip groove, the rectangular through hole groove formed by the lower square strip-shaped groove and the upper square strip-shaped groove is movably provided with a flat copper strip, positioning pin inserting through holes are arranged on the top surface of the upper rectangular cushion block at equal intervals along the direction of the upper square strip-shaped groove, the lower ends of the positioning pin inserting through holes are communicated with the upper square strip-shaped groove, and positioning pins are movably inserted into the positioning pin inserting through holes.
The right-hand member of flat copper bar and the locating pin that inserts in the locating pin inserts the through-hole are in the same place by the joint, and the left end of the flat copper bar that stretches out to the lower rectangle backing plate block left end outside is pegged graft in flat copper bar inserted hole, is provided with first sealing washer in first sealing washer embedding recess, is provided with the second sealing washer in second sealing washer embedding recess.
A wedge ring assembling method in a thin-wall shell sealing plug comprises the following steps:
the method comprises the following steps that firstly, a plug is arranged on a plugging opening of a thin-wall shell, a first sealing ring embedding groove, a second sealing ring embedding groove and a wedge ring embedding groove are respectively arranged on the outer side surface of the plug, a flat copper strip inserting opening is arranged on the side wall of the thin-wall shell outside the plugging opening of the thin-wall shell, and the flat copper strip inserting opening is communicated with the wedge ring embedding groove;
secondly, arranging a lower square strip-shaped groove on the top surface of the lower rectangular cushion block, arranging an upper square strip-shaped groove on the lower bottom surface of the upper rectangular cushion block, arranging an upper rectangular cushion block on the upper top surface of the lower rectangular cushion block, connecting the lower rectangular cushion block and the upper rectangular cushion block together by a connecting bolt, arranging the lower square strip-shaped groove corresponding to the upper strip-shaped groove, and arranging positioning pins on the top surface of the upper rectangular cushion block at equal intervals along the direction of the upper strip-shaped groove to insert into through holes;
inserting a positioning pin at the rightmost end into the through hole, inserting a flat copper strip into a strip hole formed by a lower square strip-shaped groove and an upper square strip-shaped groove, enabling the right end of the flat copper strip to be abutted to the positioning pin inserted into the through hole, inserting the left end of the flat copper strip extending out of the left end of the lower rectangular backing plate block into a flat copper strip insertion hole in the thin-wall shell, knocking the right side surface of a cushion block formed by the lower rectangular backing plate block and the upper rectangular backing plate block by a hammer, and embedding the left end of the flat copper strip into a wedge ring insertion groove;
fourthly, the cushion block is moved rightwards, so that the flat copper strip extends out a certain distance from the cushion block, the positioning pin is inserted into the through hole from the rightmost end, the positioning pin is inserted into the positioning pin inserted into the left side of the through hole from the rightmost end, the right end of the flat copper strip is abutted to the positioning pin inserted into the through hole of the positioning pin, then a hammer is used for knocking the right side surface of the cushion block consisting of the lower rectangular cushion block and the upper rectangular cushion block, and the left end of the flat copper strip is continuously embedded into the wedge ring embedding groove;
and fifthly, repeating the step of the fourth step to enable the flat copper strip to enter the wedge ring embedding groove section by section until the head of the left end of the flat copper strip is exposed out of the flat copper strip inserting opening, so that a wedge ring is formed between the plug and the plugging opening of the thin-wall shell.
The invention meets the pressing requirement of the hydrostatic test of the thin-wall shell, solves the sealing problem of non-screw connection by arranging the wedge ring and the corresponding sealing plug, and realizes limit and double sealing protection.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the plug 10 of the present invention;
FIG. 3 is a schematic structural diagram of the cushion block of the present invention, which is composed of a lower rectangular cushion block 1 and an upper rectangular cushion block 2;
fig. 4 is a schematic view of the structure of the flat copper bar 7 of the present invention;
fig. 5 is a schematic view of the structure of the flat copper bar 7 of the present invention in a top view.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a wedge ring assembly fixture in a thin-wall shell sealing plug comprises a lower rectangular cushion block 1, an upper rectangular cushion block 2, a thin-wall shell 9, a plug 10 and a flat copper strip 7, wherein the plug 10 is arranged on a plugging port of the thin-wall shell 9, a first sealing ring embedding groove 11, a second sealing ring embedding groove 12 and a wedge ring embedding groove 13 are respectively arranged on the outer side surface of the plug 10, a flat copper strip inserting port 14 is arranged on the side wall of the thin-wall shell outside the plugging port of the thin-wall shell 9, the flat copper strip inserting port 14 is communicated with the wedge ring embedding groove 13, a lower rectangular strip groove 3 is arranged on the top surface of the lower rectangular cushion block 1, an upper strip groove 4 is arranged on the lower bottom surface of the upper rectangular cushion block 2, the upper rectangular cushion block 2 is arranged on the upper top surface of the lower rectangular cushion block 1, and the upper rectangular cushion block 2 are connected together by a connecting bolt 6, the lower square strip-shaped groove 3 is arranged corresponding to the upper strip-shaped groove 4, a flat copper bar 7 is movably arranged in a strip through hole groove formed by the lower square strip-shaped groove 3 and the upper strip-shaped groove 4, positioning pin inserting through holes 5 are arranged on the top surface of the upper rectangular backing plate block 2 at equal intervals along the direction of the upper strip-shaped groove 4, the lower ends of the positioning pin inserting through holes 5 are communicated with the upper strip-shaped groove 4, and positioning pins 8 are movably inserted in the positioning pin inserting through holes 5.
The right end of the flat copper bar 7 is abutted to a positioning pin 8 inserted into the positioning pin insertion through hole 5, the left end of the flat copper bar 7 extending out of the left end of the lower rectangular backing plate block 1 is inserted into a flat copper bar insertion hole 14, a first sealing ring is arranged in the first sealing ring embedding groove 11, and a second sealing ring is arranged in the second sealing ring embedding groove 12.
A wedge ring assembling method in a thin-wall shell sealing plug comprises the following steps:
the method comprises the following steps that firstly, a plug 10 is arranged on a plugging opening of a thin-wall shell 9, a first sealing ring embedding groove 11, a second sealing ring embedding groove 12 and a wedge ring embedding groove 13 are respectively arranged on the outer side surface of the plug 10, a flat copper strip inserting opening 14 is arranged on the side wall of the thin-wall shell outside the plugging opening of the thin-wall shell 9, and the flat copper strip inserting opening 14 is communicated with the wedge ring embedding groove 13;
secondly, arranging lower square strip-shaped grooves 3 on the top surface of a lower rectangular cushion block 1, arranging upper square strip-shaped grooves 4 on the lower bottom surface of an upper rectangular cushion block 2, arranging an upper rectangular cushion block 2 on the upper top surface of the lower rectangular cushion block 1, connecting bolts 6 connecting the lower rectangular cushion block 1 with the upper rectangular cushion block 2, arranging the lower square strip-shaped grooves 3 corresponding to the upper strip-shaped grooves 4, and arranging positioning pin insertion through holes 5 on the top surface of the upper rectangular cushion block 2 at equal intervals along the direction of the upper strip-shaped grooves 4;
thirdly, inserting a positioning pin 8 into a positioning pin insertion through hole 5 at the rightmost end, inserting a flat copper strip 7 into a long hole formed by a lower square strip-shaped groove 3 and an upper square strip-shaped groove 4, enabling the right end of the flat copper strip 7 to be abutted with the positioning pin 8 inserted into the positioning pin insertion through hole 5, inserting the left end of the flat copper strip 7 extending out of the left end of a lower rectangular backing plate block 1 into a flat copper strip insertion hole 14 on a thin-wall shell 9, knocking the right side surface of a cushion block formed by the lower rectangular backing plate block 1 and an upper rectangular backing plate block 2 by a hammer, and embedding the left end of the flat copper strip 7 into a wedge ring insertion groove 13;
fourthly, the cushion block is moved rightwards, so that the flat copper strip 7 extends out of the cushion block for a certain distance, the positioning pin 8 is pulled out of the positioning pin insertion through hole 5 at the rightmost end, the positioning pin 8 is inserted into the positioning pin insertion through hole at the left side of the positioning pin insertion through hole at the rightmost end, the right end of the flat copper strip 7 is abutted to the positioning pin 8 inserted into the positioning pin insertion through hole, then, the hammer is used for knocking the right side surface of the cushion block consisting of the lower rectangular cushion block 1 and the upper rectangular cushion block 2, and the left end of the flat copper strip 7 is continuously embedded into the wedge ring embedding groove 13;
fifthly, repeating the step of the fourth step to enable the flat copper strip 7 to enter the wedge ring embedding groove 13 section by section until the head of the left end of the flat copper strip 7 is exposed out of the flat copper strip inserting hole 14, so that a wedge ring is formed between the plug 10 and the plugging hole of the thin-wall shell 9;
sixthly, after the hydrostatic test is completed, the flat copper bar 7 is pulled out from the wedge ring embedded groove 13, and the plug 10 can be conveniently detached from the plugging opening of the thin-wall shell 9.
Claims (1)
1. A wedge ring assembling method in a thin-wall shell sealing plug comprises the following steps:
the method comprises the following steps that firstly, a plug (10) is arranged on a plugging opening of a thin-wall shell (9), a first sealing ring embedding groove (11), a second sealing ring embedding groove (12) and a wedge ring embedding groove (13) are respectively arranged on the outer side surface of the plug (10), a flat copper strip inserting opening (14) is arranged on the side wall of the thin-wall shell outside the plugging opening of the thin-wall shell (9), and the flat copper strip inserting opening (14) is communicated with the wedge ring embedding groove (13);
secondly, arranging lower square strip-shaped grooves (3) on the top surface of a lower rectangular cushion block (1), arranging upper square strip-shaped grooves (4) on the lower bottom surface of an upper rectangular cushion block (2), arranging upper rectangular cushion blocks (2) on the upper top surface of the lower rectangular cushion block (1), connecting bolts (6) connecting the lower rectangular cushion block (1) with the upper rectangular cushion block (2), arranging the lower square strip-shaped grooves (3) corresponding to the upper strip-shaped grooves (4), and arranging positioning pin insertion through holes (5) on the top surface of the upper rectangular cushion block (2) at equal intervals along the direction of the upper strip-shaped grooves (4);
thirdly, inserting a positioning pin (8) into a positioning pin insertion through hole (5) at the rightmost end, inserting a flat copper bar (7) into a strip hole formed by a lower square strip-shaped groove (3) and an upper square strip-shaped groove (4), enabling the right end of the flat copper bar (7) to be abutted to the positioning pin (8) inserted into the positioning pin insertion through hole (5), inserting the left end of the flat copper bar (7) extending out of the left end of a lower rectangular cushion block (1) into a flat copper bar insertion hole (14) in a thin-wall shell (9), knocking the right side surface of a cushion block formed by the lower rectangular cushion block (1) and an upper rectangular cushion block (2) by a hammer, and embedding the left end of the flat copper bar (7) into a wedge ring insertion groove (13);
fourthly, the cushion block is moved rightwards, so that the flat copper strip (7) extends outwards for a certain distance from the cushion block, the positioning pin (8) is pulled out from the positioning pin insertion through hole (5) at the rightmost end, the positioning pin (8) is inserted into the positioning pin insertion through hole at the left side of the positioning pin insertion through hole at the rightmost end, the right end of the flat copper strip (7) is abutted to the positioning pin (8) inserted into the positioning pin insertion through hole, then, the hammer is used for knocking the right side surface of the cushion block consisting of the lower rectangular cushion block (1) and the upper rectangular cushion block (2), and the left end of the flat copper strip (7) is continuously embedded into the wedge ring embedding groove (13);
and fifthly, repeating the step of the fourth step, so that the flat copper strip (7) enters the wedge ring embedding groove (13) section by section until the head of the left end of the flat copper strip (7) is exposed from the flat copper strip inserting opening (14), and a wedge ring is formed between the plug (10) and the plugging opening of the thin-wall shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576420.9A CN109630680B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembling method in thin-wall shell sealing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576420.9A CN109630680B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembling method in thin-wall shell sealing plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630680A CN109630680A (en) | 2019-04-16 |
| CN109630680B true CN109630680B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811576420.9A Active CN109630680B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembling method in thin-wall shell sealing plug |
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| CN (1) | CN109630680B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357009B (en) * | 2018-12-22 | 2024-05-28 | 山西汾西重工有限责任公司 | Wedge ring assembly fixture in thin-wall shell sealing plug |
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2018
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| CN109630680A (en) | 2019-04-16 |
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