CN107907038A - A kind of LNG ship cargo tank flatness inspection device and the method for inspection - Google Patents

A kind of LNG ship cargo tank flatness inspection device and the method for inspection Download PDF

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Publication number
CN107907038A
CN107907038A CN201711375774.2A CN201711375774A CN107907038A CN 107907038 A CN107907038 A CN 107907038A CN 201711375774 A CN201711375774 A CN 201711375774A CN 107907038 A CN107907038 A CN 107907038A
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CN
China
Prior art keywords
bulkhead plate
ruler
flatness
detection ruler
measurement
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Pending
Application number
CN201711375774.2A
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Chinese (zh)
Inventor
王兴华
周飞
李健
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Hudong Zhonghua Shipbuilding Group Co Ltd
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Hudong Zhonghua Shipbuilding Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hudong Zhonghua Shipbuilding Group Co Ltd filed Critical Hudong Zhonghua Shipbuilding Group Co Ltd
Priority to CN201711375774.2A priority Critical patent/CN107907038A/en
Publication of CN107907038A publication Critical patent/CN107907038A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/28Measuring arrangements characterised by the use of mechanical means for measuring roughness or irregularity of surfaces

Abstract

The invention discloses a kind of LNG ship cargo tank flatness inspection device and the method for inspection, belong to shipbuilding technical field.The device includes detection ruler, the detection ruler is bar shaped platy structure, the side of the detection ruler is equipped with two measurement footing, described two measurement footing are separately positioned on the both ends of detection ruler, the both ends of the detection ruler are respectively equipped with the first inspection card slot and second examines card slot, and the width of rebate a of the first inspection card slot is 40 millimeters, and the groove depth b of the first inspection card slot is 3 millimeters, the width of rebate c of the second inspection card slot is 40 millimeters, and the groove depth d of the second inspection card slot is 4 millimeters.The device can be used for the flatness of the bulkhead plate between the flatness for the bulkhead plate for examining cargo tank face to indulge at bone, vertical bone, and whether the flatness and weld seam enhancing amount of the bulkhead plate of butt weld are qualified.

Description

A kind of LNG ship cargo tank flatness inspection device and the method for inspection
Technical field
The invention belongs to shipbuilding technical field, more particularly to a kind of LNG ship cargo tank flatness inspection device and The method of inspection.
Background technology
LNG carrier(LNG ship)It is the " three high " of high-tech generally acknowledged in the world, high added value, high reliability request Ship.LNG ship service life is up to 40 years, during which needs to ensure the ability of conveying liquified natural gas at -163 DEG C, due to building The installation of insulation box material has very high requirement to Ship Structure flatness precision in journey.
In LNG ship cargo hold intermediate products building course, cargo tank segmentation must assure that the flatness of three aspects:Cargo tank Indulge the bulkhead plate flatness between bulkhead plate flatness at bone, vertical bone, the bulkhead plate flatness at butt weld, and plate in face The weld seam enhancing amount of material butt welding.
The content of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of LNG ship cargo tank flatness inspection The device device can be used for the flat increasing degree for examining the segmentation of LNG ship cargo tank.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of LNG ship cargo tank flatness inspection device, including detection ruler, the detection ruler are bar shaped platy structure, the inspection The side for testing ruler is equipped with two measurement footing, and described two measurement footing are separately positioned on the both ends of detection ruler, the detection ruler Both ends be respectively equipped with the first inspection card slot and second examine card slot, it is described first examine card slot width of rebate a be 40 millimeters, The groove depth b of the first inspection card slot is 3 millimeters, and the width of rebate c of the second inspection card slot is 40 millimeters, second inspection The groove depth d for testing card slot is 4 millimeters.
Preferably, the length w of the detection ruler is 3 meters, and the height h of the measurement footing is 7 millimeters.
Preferably, the length w of the detection ruler is 1 meter, and the height h of the measurement footing is 5 millimeters.
Preferably, the upper surface of the detection ruler is equipped with two graduated scales, and described two graduated scales are separately positioned on The both ends of detection ruler.
Preferably, the thickness of the detection ruler is 6 millimeters.
Preferably, the corner of the detection ruler is handled by fillet.
Preferably, which includes slot measurement ruler, and the slot measurement ruler is the platy structure of isosceles triangle, described The upper surface of slot measurement ruler is equipped with width graduated scale, the scale of the width graduated scale between slot measurement ruler both sides away from From 0 graduation mark of the width graduated scale is arranged on the tip of slot measurement ruler.
Preferably, the slot measurement ruler is equipped with lacing hole.
A kind of LNG ship cargo tank flatness inspection method, comprises the following steps:
Step 1: examine weld seam enhancing amount whether qualified, using first examine card slot examine cargo hold face weld seam enhancing amount whether Qualification, the first inspection card slot is placed on the weld seam of bulkhead plate, if first examines the notch both sides of card slot can be with cabin Siding contacts, then weld seam enhancing amount of weld seam is qualified at this;If the top of weld seam is contacted with the slot bottom of the first inspection card slot, but Be the first inspection card slot notch both sides cannot and meanwhile be contacted with bulkhead plate, then weld seam enhancing amount of weld seam is unqualified at this, profit Examine card slot to examine the weld seam enhancing amount in other cargo tank faces in addition to cargo hold face whether qualified with second, the second inspection card slot is put Put on the weld seam of bulkhead plate, if the notch both sides of the second inspection card slot can be contacted with bulkhead plate, weld seam at this Weld seam enhancing amount is qualified;If the top of weld seam is contacted with the slot bottom of the second inspection card slot, but the notch of the second inspection card slot Both sides cannot be contacted with bulkhead plate at the same time, then weld seam enhancing amount of weld seam is unqualified at this;
Step 2: examining the flatness of bulkhead plate between vertical bone, when bulkhead plate is convex, two measurement footing of detection ruler are put Put in bulkhead plate, and two measurement footing are placed on the top of vertical bone, with slot measurement ruler measure bulkhead plate and detection ruler it Between gap size, if between bulkhead plate and detection ruler gap be not less than 3 millimeters, indulge bone between bulkhead plate flatness close Lattice, if gap is less than 3 millimeters between bulkhead plate and detection ruler, the flatness of bulkhead plate is unqualified between vertical bone, works as bulkhead plate When recessed, detection ruler is placed in bulkhead plate, and two measurement footing measure bulkhead plate away from bulkhead plate with slot measurement ruler The size in gap between detection ruler, if gap is more than 2 millimeters between bulkhead plate and detection ruler, bulkhead plate is flat between vertical bone Whole degree is unqualified, if gap is no more than 2 millimeters between bulkhead plate and detection ruler, indulges the flatness qualification of bulkhead plate between bone;
Step 3: examining the flatness of bulkhead plate at abutment joint, when bulkhead plate is convex, two measurement footing of detection ruler are put Put in bulkhead plate, and two measurement footing are placed on the both sides of abutment joint, and bulkhead plate and detection ruler are measured with slot measurement ruler Between gap size, if between bulkhead plate and detection ruler gap be not less than 3 millimeters, indulge bone between bulkhead plate flatness close Lattice, if gap is less than 3 millimeters between bulkhead plate and detection ruler, the flatness of bulkhead plate is unqualified between vertical bone, works as bulkhead plate When recessed, detection ruler is placed in bulkhead plate, and two measurement footing measure bulkhead plate away from bulkhead plate with slot measurement ruler The size in gap between detection ruler, if gap is more than 2 millimeters between bulkhead plate and detection ruler, bulkhead plate is flat between vertical bone Whole degree is unqualified, if gap is no more than 2 millimeters between bulkhead plate and detection ruler, indulges the flatness qualification of bulkhead plate between bone;
Step 4: the detection ruler is used to examine the flatness of bulkhead plate, when bulkhead plate at inspection it is convex when, by detection ruler Two measurement footing be placed in bulkhead plate, and two measurement footing are measured across in the both sides of vertical bone with slot measurement ruler The size in gap between bulkhead plate and detection ruler, if gap is not less than 5 millimeters between bulkhead plate and detection ruler, indulges cabin between bone The flatness of siding is qualified, if gap is less than 5 millimeters between bulkhead plate and detection ruler, indulges the flatness of bulkhead plate between bone not Qualification, when bulkhead plate at inspection it is recessed when, detection ruler is placed in bulkhead plate, and two measurement footing are away from bulkhead Plate, the size in gap between bulkhead plate and detection ruler is measured with slot measurement ruler, if gap is more than 2 between bulkhead plate and detection ruler Millimeter, then the flatness of bulkhead plate is unqualified between vertical bone, if gap is no more than 2 millimeters between bulkhead plate and detection ruler, indulges The flatness of bulkhead plate is qualified between bone;
In the step 2 and step 3, the length w of the detection ruler is 1 meter, and the height h of the measurement footing is 5 millimeters.
The upper surface of the detection ruler is equipped with two graduated scales, and described two graduated scales are separately positioned on detection ruler Both ends.
In the step 4, the length w of the detection ruler is 3 meters, and the height h of the measurement footing is 7 millimeters.
The beneficial effects of the invention are as follows:The device can be used for the bulkhead plate for examining cargo tank face to indulge at bone flatness, The flatness of bulkhead plate between vertical bone, whether the flatness and weld seam enhancing amount of the bulkhead plate of butt weld are qualified, improve The precision that LNG ship is built;The device is by detection ruler, the first inspection card slot, the second inspection card slot and graduated scale is intensive is integrated, Use easy to carry, and save manufacture cost.
Brief description of the drawings
Fig. 1 is one of LNG ship cargo tank flatness inspection device overall structure diagram of the present invention.
Fig. 2 is the two of LNG ship cargo tank flatness inspection device overall structure diagram of the present invention.
Fig. 3 is slot measurement ruler structure diagram in LNG ship cargo tank flatness inspection device of the present invention.
Fig. 4 is one of LNG ship cargo tank flatness inspection device usage state diagram of the present invention.
Fig. 5 is the two of LNG ship cargo tank flatness inspection device usage state diagram of the present invention.
Fig. 6 is the three of LNG ship cargo tank flatness inspection device usage state diagram of the present invention.
Fig. 7 is the four of LNG ship cargo tank flatness inspection device usage state diagram of the present invention.
Fig. 1 is into Fig. 7:1 is detection ruler, and 2 be measurement footing, and 3 examine card slot for first, and 4 examine card slot for second, and 5 are Graduated scale, 6 be slot measurement ruler, and 7 be lacing hole, and 8 be weld seam, and 9 be bulkhead plate.
Embodiment
Come below in conjunction with the accompanying drawings with specific case study on implementation to LNG ship cargo tank flatness inspection device of the present invention and inspection Method is further elaborated, and in the hope of being more fully apparent from expresses the architectural feature and concrete application of the present invention, but not It can be limited the scope of the invention with this.
Embodiment:As depicted in figs. 1 and 2, a kind of LNG ship cargo tank flatness inspection device, including detection ruler 1, it is described Detection ruler 1 is bar shaped platy structure, and the side of the detection ruler 1 is equipped with two measurement footing 2, and described two measurement footing 2 divide The both ends of detection ruler 1 are not arranged on, the both ends of the detection ruler 1 are respectively equipped with the first inspection card slot 3 and second and examine card slot 4, It is described first examine card slot 3 width of rebate a be 40 millimeters, it is described first examine card slot 3 groove depth b be 3 millimeters, described second The width of rebate c for examining card slot 4 is 40 millimeters, and the groove depth d of the second inspection card slot 4 is 4 millimeters.
In the present embodiment, the length w of the detection ruler 1 is 3 meters, and the height h of the measurement footing 2 is 7 millimeters;The inspection The thickness for testing ruler 1 is 6 millimeters;The corner of the detection ruler 1 by fillet handle, to avoid detection ruler 1 corner to use Person or bulkhead plate 9 cause to scratch;The device includes slot measurement ruler 6, as shown in figure 3, the slot measurement ruler 6 is isosceles three Angular platy structure, the upper surface of the slot measurement ruler 6 are equipped with width graduated scale, and the width graduated scale includes two col widths Graduation mark is spent, the two column widths graduation mark is parallel with the bottom of isosceles triangle, and the two column widths graduation mark is respectively along seam The two sides of gap measuring scale 6 are set, and the two column widths graduation mark corresponds, and corresponding two width graduation marks are in same On straight line, corresponding two width graduation marks intersect with two sides of slot measurement ruler 6 and produce two friendships respectively The scale value of the distance between point, two intersection points corresponding to the two width graduation marks of the width graduated scale here, it is described 0 graduation mark of width graduated scale is arranged on the tip of slot measurement ruler 6;The slot measurement ruler 6 is equipped with lacing hole 7, described Connecting rope is equipped with lacing hole 7, one end of the connecting rope is connected with slot measurement ruler 6, and the other end of the connecting rope connects It is connected to wrist strap.
A kind of LNG ship cargo tank flatness inspection method, comprises the following steps:
Step 1: examine weld seam enhancing amount whether qualified, using first examine card slot 3 examine cargo hold face weld seam enhancing amount whether Qualification, the first inspection card slot 3 is placed on the weld seam 8 of bulkhead plate 9, if first examines the notch both sides of card slot 3 can be with Contacted with bulkhead plate 9, as shown in figure 4, then weld seam enhancing amount of weld seam 8 is qualified at this;If the top of weld seam 8 is examined with first The slot bottom contact of card slot 3, but the notch both sides of the first inspection card slot 3 cannot be contacted with bulkhead plate 9 at the same time, as shown in figure 5, then Weld seam enhancing amount of weld seam 8 is unqualified at this, and the weld seam in other cargo tank faces in addition to cargo hold face is examined using the second inspection card slot 4 Whether enhancing amount is qualified, the second inspection card slot 4 is placed on the weld seam 8 of bulkhead plate 9, if second examines the notch of card slot 4 Both sides can be contacted with bulkhead plate 9, then weld seam enhancing amount of weld seam 8 is qualified at this;If the top of weld seam 8 is examined with second The slot bottom of card slot 4 contacts, but the notch both sides of the second inspection card slot 4 cannot be contacted with bulkhead plate 9 at the same time, then weld seam 8 at this Weld seam enhancing amount it is unqualified;
Step 2: examining the flatness of bulkhead plate 9 between vertical bone, when bulkhead plate 9 is convex, bottom is measured by two of detection ruler 1 Foot 2 is placed in bulkhead plate 9, and two measurement footing 2 are placed on the top of vertical bone, and 9 He of bulkhead plate is measured with slot measurement ruler 6 The size in gap between detection ruler 1, if gap is not less than 3 millimeters between bulkhead plate 9 and detection ruler 1, indulges bulkhead plate 9 between bone Flatness it is qualified, if gap is less than 3 millimeters between bulkhead plate 9 and detection ruler 1, indulge the flatness of bulkhead plate 9 between bone not Qualification, when bulkhead plate 9 is recessed, detection ruler 1 is placed in bulkhead plate 9, and two measure footing 2 away from bulkhead plate 9, with seam Gap measuring scale 6 measures the size in gap between bulkhead plate 9 and detection ruler 1, if gap is more than 2 millis between bulkhead plate 9 and detection ruler 1 Rice, then the flatness of bulkhead plate 9 is unqualified between vertical bone, if gap is no more than 2 millimeters between bulkhead plate 9 and detection ruler 1, indulges The flatness of bulkhead plate 9 is qualified between bone;
Step 3: examining the flatness of bulkhead plate 9 at abutment joint, when bulkhead plate 9 is convex, bottom is measured by two of detection ruler 1 Foot 2 is placed in bulkhead plate 9, and two measurement footing 2 are placed on the both sides of abutment joint, and bulkhead plate 9 is measured with slot measurement ruler 6 The size in gap between detection ruler 1, if gap is not less than 3 millimeters between bulkhead plate 9 and detection ruler 1, indulges bulkhead between bone The flatness of plate 9 is qualified, if gap is less than 3 millimeters between bulkhead plate 9 and detection ruler 1, indulges the flatness of bulkhead plate 9 between bone It is unqualified, when bulkhead plate 9 is recessed, detection ruler 1 is placed in bulkhead plate 9, and two measurement footing 2 are used away from bulkhead plate 9 Slot measurement ruler 6 measures the size in gap between bulkhead plate 9 and detection ruler 1, if gap is more than 2 between bulkhead plate 9 and detection ruler 1 Millimeter, then the flatness of bulkhead plate 9 is unqualified between vertical bone, if gap is no more than 2 millimeters between bulkhead plate 9 and detection ruler 1, The flatness of bulkhead plate 9 is qualified between vertical bone;
Step 4: the detection ruler 1 is used to examine the flatness of bulkhead plate 9, when bulkhead plate 9 at inspection it is convex when, will examine Two measurement footing 2 for testing ruler 1 are placed in bulkhead plate 9, and two measure footing 2 across the both sides of bone are being indulged, such as Fig. 6 institutes Show, the size in gap between bulkhead plate 9 and detection ruler 1 is measured with slot measurement ruler 6, if gap between bulkhead plate 9 and detection ruler 1 Not less than 5 millimeters, then the flatness qualification of bulkhead plate 9 between bone is indulged, if gap is less than 5 millis between bulkhead plate 9 and detection ruler 1 Rice, then indulge that the flatness of bulkhead plate 9 between bone is unqualified, when bulkhead plate 9 at inspection it is recessed when, detection ruler 1 is placed on In bulkhead plate 9, and two measure footing 2 away from bulkhead plate 9, as shown in fig. 7, measuring bulkhead plate 9 with slot measurement ruler 6 and examining The size in gap between ruler 1, if gap is more than 2 millimeters between bulkhead plate 9 and detection ruler 1, bulkhead plate 9 is smooth between vertical bone Spend unqualified, if gap is no more than 2 millimeters between bulkhead plate 9 and detection ruler 1, the flatness for indulging bulkhead plate 9 between bone is qualified;
In the step 2 and step 3, the length w of the detection ruler 1 is 1 meter, and the height h of the measurement footing 2 is 5 millis Rice;The upper surface of the detection ruler 1 is equipped with two graduated scales 5, and described two graduated scales 5 are separately positioned on detection ruler 1 Both ends.
In the step 4, the length w of the detection ruler 1 is 3 meters, and the height h of the measurement footing 2 is 7 millimeters.

Claims (9)

1. a kind of LNG ship cargo tank flatness inspection device, it is characterised in that the device includes detection ruler(1), the detection ruler (1)For bar shaped platy structure, the detection ruler(1)Side be equipped with two measurement footing(2), described two measurement footing(2) It is separately positioned on detection ruler(1)Both ends, the detection ruler(1)Both ends be respectively equipped with the first inspection card slot(3)With the second inspection Test card slot(4), described first examines card slot(3)Width of rebate a be 40 millimeters, it is described first examine card slot(3)Groove depth b be 3 millimeters, described second examines card slot(4)Width of rebate c be 40 millimeters, it is described second examine card slot(4)Groove depth d for 4 milli Rice.
A kind of 2. LNG ship cargo tank flatness inspection device according to claim 1, it is characterised in that the detection ruler (1)Thickness be 6 millimeters.
A kind of 3. LNG ship cargo tank flatness inspection device according to claim 1, it is characterised in that the detection ruler (1)Corner by fillet handle.
4. a kind of LNG ship cargo tank flatness inspection device according to claim 1, it is characterised in that the device includes Slot measurement ruler(6), the slot measurement ruler(6)For the platy structure of isosceles triangle, the slot measurement ruler(6)Upper table Face is equipped with width graduated scale, and the scale of the width graduated scale is slot measurement ruler(6)The distance between both sides, the width are carved 0 graduation mark of degree ruler is arranged on slot measurement ruler(6)Tip.
A kind of 5. LNG ship cargo tank flatness inspection device according to any one of claim 1-4, it is characterised in that The slot measurement ruler(6)It is equipped with lacing hole(7).
A kind of 6. LNG ship cargo tank flatness inspection method, it is characterised in that comprise the following steps:
Step 1: examining weld seam enhancing amount whether qualified, card slot is examined using first(3)Examining the weld seam enhancing amount in cargo hold face is No qualification, card slot is examined by first(3)It is placed on bulkhead plate(9)Weld seam(8)On, if first examines card slot(3)Notch Both sides can be with bulkhead plate(9)Contact, then weld seam at this(8)Weld seam enhancing amount it is qualified;If weld seam(8)Top and the One examines card slot(3)Slot bottom contact, but first examine card slot(3)Notch both sides cannot at the same time and bulkhead plate(9)Contact, Then weld seam at this(8)Weld seam enhancing amount it is unqualified, utilize second examine card slot(4)Examine other cargo tank faces in addition to cargo hold face Weld seam enhancing amount it is whether qualified, by second examine card slot(4)It is placed on bulkhead plate(9)Weld seam(8)On, if second examines Card slot(8)Notch both sides can be contacted with bulkhead plate 9, then weld seam at this(8)Weld seam enhancing amount it is qualified;If weld seam (8)Top with second examine card slot(4)Slot bottom contact, but second examine card slot(4)Notch both sides cannot at the same time with Bulkhead plate(9)Contact, then weld seam at this(8)Weld seam enhancing amount it is unqualified;
Step 2: examine bulkhead plate between vertical bone(9)Flatness, work as bulkhead plate(9)When convex, by detection ruler(1)Two Measure footing(2)It is placed on bulkhead plate(9)On, and two measurement footing(2)The top of vertical bone is placed on, with slot measurement ruler (6)Measure bulkhead plate(9)And detection ruler(1)Between gap size, if bulkhead plate(9)And detection ruler(1)Between gap it is not small In 3 millimeters, then bulkhead plate between bone is indulged(9)Flatness it is qualified, if bulkhead plate(9)And detection ruler(1)Between gap be less than 3 milli Rice, then indulge bulkhead plate between bone(9)Flatness it is unqualified, work as bulkhead plate(9)When recessed, by detection ruler(1)It is placed on bulkhead Plate(9)On, and two measurement footing(2)Away from bulkhead plate(9), with slot measurement ruler(6)Measure bulkhead plate(9)And detection ruler (1)Between gap size, if bulkhead plate(9)And detection ruler(1)Between gap be more than(2)Millimeter, then indulge bulkhead plate between bone (9)Flatness it is unqualified, if bulkhead plate(9)And detection ruler(1)Between gap be no more than 2 millimeters, then indulge bone between bulkhead plate (9 flatness is qualified;
Step 3: examine bulkhead plate at abutment joint(9)Flatness, work as bulkhead plate(9)When convex, by detection ruler(1)Two Measure footing(2)It is placed on bulkhead plate(9)On, and two measurement footing(2)The both sides of abutment joint are placed on, with slot measurement ruler (6)Measure bulkhead plate(6)And detection ruler(1)Between gap size, if bulkhead plate(9)And detection ruler(1)Between gap it is not small In 3 millimeters, then bulkhead plate between bone is indulged(9)Flatness it is qualified, if bulkhead plate(9)And detection ruler(1)Between gap be less than 3 milli Rice, then indulge bulkhead plate between bone(9)Flatness it is unqualified, work as bulkhead plate(9)When recessed, by detection ruler(1)It is placed on bulkhead Plate(9)On, and two measurement footing(2)Away from bulkhead plate(9), with slot measurement ruler(6)Measure bulkhead plate(9)And detection ruler (1)Between gap size, if bulkhead plate(9)And detection ruler(1)Between gap be more than 2 millimeters, then indulge bone between bulkhead plate(9) Flatness it is unqualified, if bulkhead plate(9)And detection ruler(1)Between gap be no more than 2 millimeters, then indulge bone between bulkhead plate(9) Flatness it is qualified;
Step 4: the detection ruler(1)For examining bulkhead plate(9)Flatness, when bulkhead plate at inspection(9)It is convex When, by detection ruler(1)Two measurement footing(2)It is placed on bulkhead plate(9)On, and two measurement footing(2)Across in vertical bone Both sides, with slot measurement ruler(6)Measure bulkhead plate(9)And detection ruler(1)Between gap size, if bulkhead plate(9)And inspection Test ruler(1)Between gap be not less than 5 millimeters, then indulge bone between bulkhead plate(9)Flatness it is qualified, if bulkhead plate(9)And inspection Ruler(1)Between gap be less than 5 millimeters, then indulge bone between bulkhead plate(9)Flatness it is unqualified, when bulkhead plate at inspection (9)When recessed, by detection ruler(1)It is placed on bulkhead plate(9)On, and two measurement footing(2)Away from bulkhead plate(9), use gap Measuring scale(6)Measure bulkhead plate(9)And detection ruler(1)Between gap size, if bulkhead plate(9)And detection ruler(1)Between stitch Gap is more than 2 millimeters, then indulges bulkhead plate between bone(9)Flatness it is unqualified, if bulkhead plate(9)And detection ruler(1)Between gap No more than 2 millimeters, then bulkhead plate between bone is indulged(9)Flatness it is qualified.
A kind of 7. LNG ship cargo tank flatness inspection method according to claim 6, it is characterised in that the step 2 In step 3, the detection ruler(1)Length w be 1 meter, the measurement footing(2)Height h be 5 millimeters.
A kind of 8. LNG ship cargo tank flatness inspection method according to claim 7, it is characterised in that the detection ruler (1)Upper surface be equipped with two graduated scales(5), described two graduated scales(5)It is separately positioned on detection ruler(1)Both ends.
A kind of 9. LNG ship cargo tank flatness inspection method according to claim 6, it is characterised in that the step 4 In, the detection ruler(1)Length w be 3 meters, the measurement footing(2)Height h be 7 millimeters.
CN201711375774.2A 2017-12-19 2017-12-19 A kind of LNG ship cargo tank flatness inspection device and the method for inspection Pending CN107907038A (en)

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Application Number Priority Date Filing Date Title
CN201711375774.2A CN107907038A (en) 2017-12-19 2017-12-19 A kind of LNG ship cargo tank flatness inspection device and the method for inspection

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Application Number Priority Date Filing Date Title
CN201711375774.2A CN107907038A (en) 2017-12-19 2017-12-19 A kind of LNG ship cargo tank flatness inspection device and the method for inspection

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201434662Y (en) * 2009-04-30 2010-03-31 安徽省(水利部淮河水利委员会)水利科学研究院 Digital-display surface evenness running rule
CN102393173A (en) * 2011-08-18 2012-03-28 奇瑞汽车股份有限公司 Clearance and flatness measuring tool
CN202814324U (en) * 2012-06-06 2013-03-20 沪东中华造船(集团)有限公司 Inspection ruler used for measuring evenness of ship type cargo hold inner housing
CN202869423U (en) * 2012-10-16 2013-04-10 江西省发达建筑集团有限公司 Detection ruler
CN206192237U (en) * 2016-11-30 2017-05-24 长安大学 Qualified nature detection model of portable weld reinforcement
CN207850273U (en) * 2017-12-19 2018-09-11 沪东中华造船(集团)有限公司 A kind of LNG ship cargo tank flatness inspection device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201434662Y (en) * 2009-04-30 2010-03-31 安徽省(水利部淮河水利委员会)水利科学研究院 Digital-display surface evenness running rule
CN102393173A (en) * 2011-08-18 2012-03-28 奇瑞汽车股份有限公司 Clearance and flatness measuring tool
CN202814324U (en) * 2012-06-06 2013-03-20 沪东中华造船(集团)有限公司 Inspection ruler used for measuring evenness of ship type cargo hold inner housing
CN202869423U (en) * 2012-10-16 2013-04-10 江西省发达建筑集团有限公司 Detection ruler
CN206192237U (en) * 2016-11-30 2017-05-24 长安大学 Qualified nature detection model of portable weld reinforcement
CN207850273U (en) * 2017-12-19 2018-09-11 沪东中华造船(集团)有限公司 A kind of LNG ship cargo tank flatness inspection device

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