CN109297646A - A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node - Google Patents
A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node Download PDFInfo
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- CN109297646A CN109297646A CN201811291218.1A CN201811291218A CN109297646A CN 109297646 A CN109297646 A CN 109297646A CN 201811291218 A CN201811291218 A CN 201811291218A CN 109297646 A CN109297646 A CN 109297646A
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- sealing plate
- plate
- sealing
- vacuum plant
- lng ship
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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
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/145—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for welds
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of vacuum plants detected for 90 ° of fillet weld sealing properties at LNG ship CM node, it include panel on the vacuum apparatus designs, sealing plate, coaming plate, cellular rubber and connector, the panel is rectangular flanging panel (1), the first sealing plate (2) are fixed at right angle flange, the second sealing plate (3) are fixed in another long edge position, a coaming plate (7) is respectively fixed on two short sides of the flanging panel (1), the 4th sealing plate (6) and third sealing plate (5) are equipped at the edge of the coaming plate (7), in first sealing plate (2), second sealing plate (3), cellular rubber (10) are fixed on third sealing plate (5) and the 4th sealing plate (6), connector (9) and handle (8) there are two being set on the flanging panel (1).Vacuum plant of the invention can overcome the undetectable difficulty of conventional vacuum cover herein during tightness test, improve LNG ship cargo tank efficiency of construction.
Description
Technical field
The present invention relates to shipbuildings, especially relate to a kind of for 90 ° of fillet weld sealings at CM node in LNG ship construction
Property detection vacuum plant.
Background technique
In LNG ship oceangoing ship building course, there is CM node identical compared with multi-angle in liquid freight house, after the completion of sectional construction, need
Close property detection is carried out to fillet weld at node, since structure type is more special at CM node, platform board is formed with longitudinal wall plate
Fillet weld be 90 °, and formed fillet weld platform board end only have 30mm, due to liquid freight house installation maintenance system time-consuming compared with
It is long, therefore tightness of welding lines testing requirements are completed in segmentation, block stage, and be suitble to detect the method for this tightness of welding lines in this stage
Only vacuumize test.
According to experimental rig is vacuumized commonly used by current technology, it can only generally meet two for being formed by fillet weld
Structural plane threshold value weld seam has the detection of the weld seam of biggish distance, at LNG ship herein CM node, due to weld pitch
Too close from platform end, Ordinary vacuum cover can not detect 90 ° of tightness of welding lines at this.
Summary of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, a kind of ship of new structure type is provided
Tightness of welding lines detection device.Vacuum plant of the present invention for 90 ° of fillet weld sealing properties detection at CM node in LNG ship construction,
The undetectable difficulty of conventional vacuum cover herein can be overcome during tightness test, improve LNG ship cargo tank efficiency of construction.
In order to achieve the above object of the invention, technical solution provided by the invention is as follows:
A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node, at CM node 90 ° of angles be platform board with
Angle between longitudinal wall plate, 90 ° of fillet welds are apart from platform board end edge 30mm, which is characterized in that the vacuum apparatus designs
On include panel, sealing plate, coaming plate, cellular rubber and connector, the panel is rectangular flanging panel, the flanging face
One long side of plate has right angle flange, and the first sealing plate is fixed at the right angle flange, is fixed with the in another long edge position
Two sealing plates are respectively fixed with a coaming plate on two short sides of the flanging panel, are equipped with the 4th at the edge of the coaming plate
Sealing plate is equipped with third sealing plate, the both ends point of the third sealing plate in the flanging face plate edge at the second sealing plate
It is not connected with the coaming plate, it is fixed on first sealing plate, the second sealing plate, third sealing plate and the 4th sealing plate
There is cellular rubber, the cellular rubber on first sealing plate, the second sealing plate, third sealing plate and the 4th sealing plate surrounds
One cavity is set on the flanging panel there are two connector and handle.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, the flanging panel
One flanging is equipped with the first stiffening plate, first stiffening plate be tightly attached to the flanging of the flanging panel and with the first sealing plate
It is connected, the second stiffening plate is provided on the outside of coaming plate, which is connected with the 4th sealing plate.
In the present invention in the vacuum plant of 90 ° of fillet weld sealing properties detection, the coaming plate to be organic at LNG ship CM node
The plate that glass is made into, the coaming plate and flanging panel, third sealing plate and the 4th sealing plate are in such a way that glue bonds
Connection.
In the present invention at LNG ship CM node in the vacuum plant of 90 ° of fillet weld sealing properties detection, third sealing plate and the
The angle formed at the link position of four sealing plates is 90 °.
In the present invention in the vacuum plant of 90 ° of fillet weld sealing properties detection, described first to be sealed at LNG ship CM node
Plate, the second sealing plate and third sealing plate are the material of rectangular channel that organic glass is made into, and the 4th sealing plate is one end with bending
Material of rectangular channel, between the first sealing plate, the second sealing plate, third sealing plate and the 4th sealing plate and corresponding cellular rubber
It is connected in such a way that glue bonds.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, second sealing plate
The cellular rubber cross section at place has a square notch, and the side length of the notch is 30mm.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, second sealing plate
The cellular rubber at place is oblong-shaped, long side 30mm, and the cellular rubber at short side 25mm, with the 4th sealing plate passes through glue
Bonding.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, connector described in two
One connection pressure gauge, another connection snorkel, two connectors are connected to the upper and lower surfaces of flanging panel.
In the present invention at LNG ship CM node in the vacuum plant of 90 ° of fillet weld sealing properties detection, during the connector is
Between the screwed round copper billet of aperture and upper end, connector is equipped with rubber washer and four fixed screws, the centre on connector
Aperture is aligned with the mating through-hole that flanging panel excavates, and is connected and sealed by rubber washer and fixed screw.
In the present invention in the vacuum plant of 90 ° of fillet weld sealing properties detection, being leaned on flanging panel at LNG ship CM node
Nearly middle part is disposed with two handles, and connector described in two is distributed in the two sides of handle.
Based on the above-mentioned technical proposal, the vacuum plant for fillet weld sealing property detection in shipbuilding of the invention is by real
Trample application, achieve following technical effect: vacuum checking device of the invention is directed to platform board and longitudinal wall plate is formed by 90 °
Fillet weld, and the platform board end for forming fillet weld only has the current demand of 30mm, has exclusively carried out structure design, has met CM
The close property detection of 90 ° of fillet welds at node, and realize the requirement at the edge 30mm.In addition, the device of the invention patent is also
Have the characteristics that structure is simple, convenient and practical, can not depend on large-scale special equipment can carry out close property detection, thus significantly
Improve the shipbuilding efficiency of LNG ship.
Detailed description of the invention
Fig. 1 is vertical view of the present invention for the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node in LNG ship construction
Structural schematic diagram.
Fig. 2 is the vacuum plant side view structure signal of 90 ° of fillet weld sealing property detections at CM node during LNG ship of the present invention is built
Figure.
Fig. 3 is the broken section of the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node during LNG ship of the present invention is built
Scheme, i.e. A-A direction view in Fig. 1.
Fig. 4 is that the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node during LNG ship of the present invention is built uses schematic diagram.
Specific embodiment
90 ° of fillet weld sealing properties at CM node in coming to build LNG ship of the present invention with specific embodiment with reference to the accompanying drawing
The vacuum plant of detection further describes in detail, in the hope of providing a clearer understanding of its structure type and usage mode,
But it is not intended to limit the protection scope of the present invention.
The present invention is a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node, is belonged to a kind of dedicated
Equipment.Angle of 90 ° of angles between platform board and longitudinal wall plate at the CM node of LNG ship, it is enterprising that longitudinal wall plate stands on platform board
Row is welded to connect, and forms weld seam in angular position, 90 ° of fillet welds are apart from platform board end edge 30mm, this structure shape
Formula determines that the close property detection device of existing large size can not be applied in the region, and these weld seams must be detected,
Just highlight the importance of above-mentioned special equipment.
Fig. 1 is vertical view of the present invention for the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node in LNG ship construction
Structural schematic diagram, Fig. 2 are the side view knots of the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node during LNG ship of the present invention is built
Structure schematic diagram, Fig. 3 are the broken sections of the vacuum plant of 90 ° of fillet weld sealing properties detection at CM node during LNG ship of the present invention is built
Scheme, i.e. A-A direction view in Fig. 1.Include on vacuum apparatus designs of the invention panel, sealing plate, coaming plate, cellular rubber and
Connector, the panel are rectangular flanging panel 1, and a long side of the flanging panel 1 has right angle flange, at the right angle
The first sealing plate 2 is fixed at flanging, is fixed with the second sealing plate 3 in another long edge position, two in the flanging panel 1 are short
It is respectively fixed with a coaming plate 4 on side, is equipped with the 4th sealing plate 6 at the edge of the coaming plate 4, is leaned at 1 edge of flanging panel
At nearly second sealing plate 3 be equipped with third sealing plate 5, the both ends of the third sealing plate 5 be connected separately with two pieces described in coaming plate 4,
Shape is angled 90 ° between third sealing plate 5 and the 4th sealing plate 6.In first sealing plate 2, the second sealing plate 3,
Cellular rubber 10 is respectively and fixedly provided on three sealing plates 5 and the 4th sealing plate 6.
By on the flanging panel 1 and the first sealing plate 2, the second sealing plate 3, third sealing plate 5 and the 4th sealing plate 6
Cellular rubber be encircled into a cavity.Since the vacuum plant belongs to a seal closure design, need in the lower surface of panel 1
A cavity is formed, cavity here is by flanging panel 1 and coaming plate 4 and four pieces of sealing plates and its rubber pasted sea
Silk floss realizes that specifically tiltedly other plate face is bonded with Ship Structure for the lower edge of cellular rubber 101,102, due to platform board end away from
There was only 30mm from weld seam, the circular arc that turns of cellular rubber 101 is bonded with 90 ° of commissure legs by compression, to guarantee vacuum
Closed cavity is formed between device and structure.
If sealing device of the invention will realize vacuumizing, need to connect air pump, thus needs above-mentioned formed
Cavity and the connector that contact of the external world and check the device that space pressure changes in the vacuum lacuna, here just needs in flanging
Two connectors 9 are designed on panel 1, one of connector connects pressure gauge, another connection snorkel, the snorkel connects gas
Pump, two connectors 9 are connected to the upper and lower surfaces of panel 1, to carry out vacuum pumping and Pressure monitoring.
In specific design, the connector 9 is the screwed round copper billet of intermediate aperture and upper end.For the ease of
It connect, is set on connector 9 there are four fixed screw, and devise rubber washer in connecting portion, on connector 9 with panel 1
Intermediate aperture is corresponding, the mating through-hole excavated on flanging panel 1, the intermediate aperture by being aligned on connector 9 and flanging panel
On mating through-hole, and the two is connected and sealed by fixed screw and rubber washer.
In order to which retractable operation is convenient when constructor holds sealing device work in practicing, in the upper surface of flanging panel 1
On be additionally provided with two handles 8, which is specifically to be located at the top of flanging panel 1 to be arranged symmetrically along its length.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, the flanging panel 1
Right angle flange at be equipped with the first stiffening plate 11 for being connected with the first sealing plate 2, the outside of the coaming plate 4 is provided with second and adds
Strong plate 7.
In the present invention in the vacuum plant of 90 ° of fillet weld sealing properties detection, the coaming plate 4 to be to have at LNG ship CM node
The plate that machine glass is made into, the coaming plate 4 and flanging panel 1, third sealing plate 4 and the 4th sealing plate 6 are bonded by glue
Mode connect.First sealing plate 2, the second sealing plate 3, third sealing plate 5 and the 4th sealing plate 6 does for organic glass
At material of rectangular channel, between each sealing plate and corresponding cellular rubber 9 glue bond by way of connect, at interconnection
Guarantee watertight requirement.
In the vacuum plant that the present invention is detected for 90 ° of fillet weld sealing properties at LNG ship CM node, second sealing plate
Square notch is had on 101 cross section of cellular rubber at 3, the side length of notch is 30mm.At second sealing plate 3
Cellular rubber 101 be oblong-shaped, long side 30mm, the cellular rubber 102 at short side 25mm, with the 4th sealing plate 6 is logical
Glue bonding is crossed, guarantees watertight requirement at interconnection.
In the construction of LNG ship oceangoing ship, as shown in figure 4, the present invention is for 90 ° of fillet weld sealing properties at CM node in LNG ship construction
The vacuum plant use process of detection including the following steps:
The first step, when close property is examined, after vacuum plant is ready to, to CM node at 90 ° of fillet welds spray liquid soaps, by vacuum
Device covers weld seam, passes through fine position itself and compresses cellular rubber, forms sealing space.
Second step adjusts breather valve, when pressure gauge reaches defined pressure value, passes through torch for illumination, directly detection weldering
It is sewed with bubble-free to emerge, reaches tightness of welding lines testing goal.
Third step closes intake valve after detection.
4th step repeats above three step after to be repaired if detection weld seam is defective, if weld seam is intact,
Detection terminates.
The present invention can effectively detect 90 ° of fillet welds of CM node, fundamentally solve general in LNG ship oceangoing ship building course
The logical insurmountable problem of vacuum (-tight) housing, effectively raises the construction progress of ship.
Claims (10)
1. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node, 90 ° of angles are platform board at CM node
With the angle between longitudinal wall plate, 90 ° of fillet welds are apart from platform board end edge 30mm, which is characterized in that the vacuum plant knot
It include panel, sealing plate, coaming plate, cellular rubber and connector on structure, the panel is rectangular flanging panel (1), should
One long side of flanging panel (1) has right angle flange, and the first sealing plate (2) are fixed at the right angle flange, in another length
It is fixed with the second sealing plate (3) at side, a coaming plate (4) is respectively fixed on two short sides of the flanging panel (1), in institute
The edge for stating coaming plate (4) is equipped with the 4th sealing plate (6), is equipped at the second sealing plate (3) at flanging panel (1) edge
Third sealing plate (5), the both ends of the third sealing plate (5) are connected separately with the coaming plate (4), in first sealing plate
(2), it is fixed with cellular rubber (10) on the second sealing plate (3), third sealing plate (5) and the 4th sealing plate (6), described first
Cellular rubber (10) on sealing plate (2), the second sealing plate (3), third sealing plate (5) and the 4th sealing plate (6) surrounds one
Cavity is set on the flanging panel (1) there are two connector (9) and handle (8).
2. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
It is characterized in that, the first stiffening plate (11) being connected with the first sealing plate (2) is equipped at the right angle flange of the flanging panel (1),
The second stiffening plate (7) are provided on the outside of the coaming plate (4).
3. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
It is characterized in that, the coaming plate (4) is the plate that organic glass is made into, and the coaming plate (4) and flanging panel (1), third seal
Plate (5) connects in such a way that glue bonds with the 4th sealing plate (6).
4. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
It is characterized in that, shape is angled 90 ° between third sealing plate (5) and the 4th sealing plate (6).
5. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
It is characterized in that, first sealing plate (2), the second sealing plate (3), third sealing plate (5) and the 4th sealing plate (6) are organic
The material of rectangular channel that glass is made into connects in such a way that glue bonds between each sealing plate and cellular rubber (9).
6. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
It is characterized in that, cellular rubber (101) cross section at second sealing plate (3) is square to have nick shaped, the side of notch
A length of 30mm.
7. a kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node according to claim 1,
Be characterized in that, the cellular rubber (101) at second sealing plate (3) be oblong-shaped, long side 30mm, short side 25mm,
It is Nian Jie by glue with the cellular rubber (102) at the 4th sealing plate (6).
8. a kind of close property for 45° angle weld seam at LNG ship CM node according to claim 1 detects vacuum plant,
It is characterized in that, (10) connection pressure gauges of connector described in two, another connection snorkel, two connectors (10) are connected to
The upper and lower surfaces of flanging panel (1).
9. a kind of close property for 45° angle weld seam at LNG ship CM node according to claim 8 detects vacuum plant,
It is characterized in that, the connector (10) is the screwed round copper billet of intermediate aperture and upper end, and connector (10) is equipped with rubber
Washer and four fixed screws, the intermediate aperture on connector (10) is aligned with the mating through-hole that flanging panel (1) excavates, and is passed through
Rubber washer and fixed screw are connected and sealed.
10. a kind of close property for 45° angle weld seam at LNG ship CM node according to claim 1 detects vacuum plant,
It is characterized in that, is disposed with two handles (11) close to middle part on flanging panel (1), connector (10) described in two is distributed in handle
The two sides of hand (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291218.1A CN109297646A (en) | 2018-10-31 | 2018-10-31 | A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291218.1A CN109297646A (en) | 2018-10-31 | 2018-10-31 | A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node |
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| CN109297646A true CN109297646A (en) | 2019-02-01 |
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| CN201811291218.1A Pending CN109297646A (en) | 2018-10-31 | 2018-10-31 | A kind of vacuum plant detected for 90 ° of fillet weld sealing properties at LNG ship CM node |
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| CN102384826A (en) * | 2011-08-18 | 2012-03-21 | 浙江省海洋开发研究院 | Weld joint tightness verifying device |
| CN205300872U (en) * | 2015-12-25 | 2016-06-08 | 中航威海船厂有限公司 | Angle seam welding detection device |
| CN207147724U (en) * | 2017-05-15 | 2018-03-27 | 沪东中华造船(集团)有限公司 | A kind of special weld testing tools of LNG ship CM nodes |
| CN108020380A (en) * | 2017-11-09 | 2018-05-11 | 上海江南长兴造船有限责任公司 | A kind of close property detection method of LNG ship cargo tank CM node regions |
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2018
- 2018-10-31 CN CN201811291218.1A patent/CN109297646A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1602751A (en) * | 1977-03-17 | 1981-11-18 | Conoco Inc | Early crack detection |
| CN1760655A (en) * | 2004-10-13 | 2006-04-19 | 上海外高桥造船有限公司 | Method and device of tightness test for filler weld |
| CN201828383U (en) * | 2010-10-28 | 2011-05-11 | 金海重工股份有限公司 | Ship body welding pre-sealing vacuum cover |
| CN102384826A (en) * | 2011-08-18 | 2012-03-21 | 浙江省海洋开发研究院 | Weld joint tightness verifying device |
| CN205300872U (en) * | 2015-12-25 | 2016-06-08 | 中航威海船厂有限公司 | Angle seam welding detection device |
| CN207147724U (en) * | 2017-05-15 | 2018-03-27 | 沪东中华造船(集团)有限公司 | A kind of special weld testing tools of LNG ship CM nodes |
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Application publication date: 20190201 |