CN104011524B - The weld part of boiler water wall checks device and weld part inspection method - Google Patents
The weld part of boiler water wall checks device and weld part inspection method Download PDFInfo
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- CN104011524B CN104011524B CN201380004492.5A CN201380004492A CN104011524B CN 104011524 B CN104011524 B CN 104011524B CN 201380004492 A CN201380004492 A CN 201380004492A CN 104011524 B CN104011524 B CN 104011524B
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- cooling tube
- water cooling
- weld part
- wall
- edge
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 228
- 238000007689 inspection Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 134
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 239000006260 foam Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000005187 foaming Methods 0.000 claims description 6
- 238000012800 visualization Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 13
- 238000012856 packing Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 206010003445 Ascites Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 208000007578 phototoxic dermatitis Diseases 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- 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
- G01M3/142—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 tubes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The weld part that it is an object of the invention to provide a kind of boiler water wall checks device and weld part inspection method, the defect that its water cooling tube that can the most easily and reliably detect in boiler water wall is run through with fin and fin weld part each other, the weld part of boiler water wall checks that the vacuum tank (100) of device has: two sidewalls, it is to be respectively configured in the way of water cooling tube arranged side by side；At least one end wall (114), it configures in the way of the long side direction with water cooling tube arranged side by side (10) intersects；Lateral margin containment member, it is for sealing between edge and the water cooling tube arranged side by side (10) of sidewall；Ora terminalis containment member (130), it is for sealing between edge (138) and water cooling tube arranged side by side (10) and the fin (12) of end wall (114).The edge (130) of end wall (114) has the edge (140) of the linearity along fin (12) and the edge (142) of the arc-shaped along water cooling tube arranged side by side (10), and ora terminalis containment member (130) has the sealing (146) of the linearity of the edge (140) being installed on linearity and is installed on the sealing (148) of arc-shaped of edge (142) of arc-shaped.
Description
Technical field
The weld part that the present invention relates to a kind of boiler water wall checks device and weld part inspection method.
Background technology
In JIS Z2329 2002, regulation has foaming to reveal the vacuum method of test method.According to this vacuum
Method, makes vacuum tank exist with test face and abuts airtightly, reduce pressure in vacuum tank, according to coating
Expanding foam solution in test face comes leakage and the position of gas in validation test face with or without foaming.
In patent documentation 1, record and can check the cooling tube of condenser based on this vacuum method
The leakage of the tube sheet of the condenser revealed checks device.Reveal and check that two contact casees of device are with smooth
Tube sheet abut, the leakage of cooling tube to extending between tube sheet checks.
On the other hand, as the leakage inspection method of weld part, it is known to PT (being impregnated with flaw detection) inspection
Look into.In the case of PT checks, after utilizing cleanout fluid to clean inspection object portion, to inspection
The coating of object portion is impregnated with liquid.It follows that wipe the surface that checks object portion unnecessary be impregnated with liquid it
After, apply developer solution.Check according to PT, show by making to be impregnated with the liquid that is impregnated with in the defect of weld part
Existing color such that it is able to confirmed the presence or absence of defect by visualization.
Citation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 62-148933 publication
Brief summary of the invention
The problem that invention is to be solved
In boiler water wall, water cooling tube configures side by side, by being welded in water cooling tube along long side direction
Fin block water cooling tube gap each other.Therefore, outside boiler water wall has with water cooling tube
The curvature of side face is the most concavo-convex, at the leakage inspection dress of the tube sheet of the condenser using patent documentation 1
In the case of putting, it is impossible to make contact case abut airtightly with boiler water wall.Thus, even with
The leakage of the tube sheet of the condenser of patent documentation 1 checks device, for boiler water wall weld part and
Speech, it is also not possible to carry out the vacuum method of JIS Z2329 2002 defined.
Therefore, all the time, the inspection of the weld part of boiler water wall is checked by PT and carries out.
But, in PT checks the medicinal liquid used, there is flammable material, there is the process at medicinal liquid
During should be noted that and check loaded down with trivial details such problem.It addition, in PT checks, have as follows
Problem: owing to process number is more, therefore spends the time in checking process；For the defect that runs through
Accuracy of detection is the highest.
Summary of the invention
The present invention completes in view of the foregoing, its object is to, it is provided that a kind of boiler water wall
Weld part check device and weld part inspection method, it can the most easily and reliably be examined
Measure the water cooling tube in boiler water wall and fin and the defect run through of fin weld part each other.
Solution
In order to reach above-mentioned purpose, the present invention provides the weld part of a kind of boiler water wall to check device,
This boiler water wall possesses the water cooling tube multiple arranged side by side of configuration side by side, blocks adjacent institute by welding
Stating the fin in water cooling tube arranged side by side gap each other, the weld part of described boiler water wall checks the spy of device
Levying and be, possess: vacuum tank, a part at least two adjacent described water cooling tubes arranged side by side is with described
A part for fin constitutes inspection object portion, and this vacuum tank forms vacuum together with described inspection object portion
Room；And exhaust apparatus, it is connected with described vacuum tank, and described vacuum tank has: window portion, and it has
Light transmission；Two sidewalls, it is with along water-cooled arranged side by side in described two water cooling tubes arranged side by side, corresponding
The mode of pipe is respectively configured；At least one end wall, it is handed over the long side direction with described water cooling tube arranged side by side
The mode of fork configures；Lateral margin containment member, it is installed on the edge of described sidewall, and is used for described side
Seal between edge and the described water cooling tube arranged side by side of wall；And ora terminalis containment member, it is installed on described
The edge of end wall, and for carrying out between edge and described water cooling tube arranged side by side and the described fin of described end wall
Sealing, the edge of described end wall has: along the edge of the linearity of described fin；And along described also
The edge of the arc-shaped of row water cooling tube, described ora terminalis containment member has: be installed on described linearity
The sealing of the linearity of edge；And it is installed on the sealing of the arc-shaped of the edge of described arc-shaped.
The weld part of the boiler water wall according to the present invention checks device, and the edge of end wall has arc-shaped
Edge, ora terminalis containment member has the sealing of the arc-shaped of the edge being installed on arc-shaped.Therefore,
Even if boiler water wall check object portion exist by water cooling tube arranged side by side and fin formed concavo-convex, very
Empty van also is able to and checks that object portion forms airtight vacuum chamber in the lump.Therefore, examine according to this weld part
Look into device, it is possible to boiler water wall check in object portion concavo-convex independently, hold at short notice
Easily and reliably detect the defect run through of the weld part checked in object portion.
Preferably, the thickness of the sealing of described linearity is than the thickness of the sealing of described arc-shaped
Greatly.
According to this structure, though the weld part side by side between water cooling tube and fin or constitute fin
Plate weld part each other highlights than the surrounding of this weld part, due to the linearity that abuts with weld part
The thickness of sealing is relatively big, and therefore the sealing of linearity suitably can become with the prominent of weld part
Shape.Therefore, even if weld part highlights, the sealing of linearity is utilized also to be able to weld part and week thereof
Enclose and reliably seal, form airtight vacuum chamber hence with vacuum tank.
At the inspection object portion of described boiler water wall, linearly extend at described water cooling tube arranged side by side
In the case of the weld part of boiler water wall that uses check in device, it is preferred that described vacuum tank
There is the long side direction along described water cooling tube arranged side by side be separated from each other, be separately installed with the sealing of described ora terminalis
Two end walls of component.
According to this structure, linearly at the inspection object portion of boiler water wall, at water cooling tube arranged side by side
In the case of extension, it is possible to utilize simple structure to make vacuum tank form airtight vacuum chamber.
Along long side direction at the inspection object portion of described boiler water wall, at described water cooling tube arranged side by side
The weld part of the boiler water wall used in the case of having the curve part of arc-shaped checks in device, excellent
Choosing, described vacuum tank has: two end walls, and it is along the long side direction of described water cooling tube arranged side by side
It is separated from each other, and is separately installed with described ora terminalis containment member；Sidewall, it is along described water-cooled arranged side by side
Pipe has the edge of the curve part with arc-shaped；And lateral margin containment member, it is along described sidewall
Edge is installed.According to this structure, at the inspection object portion of boiler water wall, water cooling tube arranged side by side in
In the case of arc-shaped extends, it is possible to utilize simple structure to make vacuum tank form airtight vacuum
Room.
The checking at object portion of described boiler water wall, intersecting along with described water cooling tube arranged side by side
The gap that the intersection water cooling tube of direction extension and described water cooling tube arranged side by side and described fin are constituted is by second
The weld part of the boiler water wall that fin uses in the case of blocking checks in device, described water-cooled arranged side by side
Pipe blocks adjacent pipe gap each other with described fin respectively, it is preferred that described vacuum tank has
Having: an end wall, it separates with described second fin on the long side direction of described water cooling tube arranged side by side,
And described ora terminalis containment member is installed；Sidewall, it intersects between water-cooling wall with described at described end wall
Extend；Roof, it is combined with described end wall and described sidewall；Containment member, it includes described ora terminalis
Containment member and described lateral margin containment member, and to described sidewall and described water cooling tube arranged side by side, described friendship
Seal between fork water cooling tube and described second fin；And containment member, its to described roof with
Seal between described intersection water cooling tube.
According to this structure, at the inspection object portion of boiler water wall, deposit near water cooling tube arranged side by side
In the case of having intersection water pipe, it is possible to utilize simple structure to make vacuum tank form airtight vacuum
Room.
It addition, the present invention provides the weld part inspection method of a kind of boiler water wall, this boiler water wall
Possess the water cooling tube multiple arranged side by side of configuration side by side, block adjacent water cooling tube described arranged side by side by welding
The fin in gap each other, the weld part inspection method of described boiler water wall is characterised by, including
Following operation: the weld part inspection of preparation boiler water wall according to any one of claim 1 to 5
Device；Expanding foam solution is given to the inspection object portion of described boiler water wall；Described vacuum tank is utilized to carry out shape
Become described vacuum chamber；Use the exhaust apparatus that is connected with described vacuum tank and make the pressure in described vacuum chamber
Power reduces；And confirm that the described expanding foam solution in described vacuum tank is with or without foaming by visualization.
The weld part inspection method of the boiler water wall according to the present invention, the end wall of the vacuum tank of preparation
Edge has the edge of arc-shaped, and ora terminalis containment member has the arc-shaped of the edge being installed on arc-shaped
Sealing.Therefore, even if existing by water cooling tube arranged side by side and fin in the inspection object portion of boiler water wall
Formed is concavo-convex, it is also possible to makes vacuum tank and checks that object portion forms airtight vacuum chamber in the lump.Therefore,
According to this weld part inspection method, it is possible to boiler water wall check in object portion concavo-convex unrelated
Ground, the defect run through of the weld part in the most easily and reliably detection checks object portion.
Invention effect
According to the present invention, it is provided that can a kind of boiler water wall weld part check device and weld part inspection
Checking method, it can the most easily and reliably detect weld part in boiler water wall
The defect run through.
Accompanying drawing explanation
Fig. 1 is the boiler water-cooled of the weld part inspection device briefly expressing application embodiments of the present invention
The figure of the structure of wall.
Fig. 2 is the vacuum tank of the weld part inspection device of the boiler water wall by constituting the first embodiment
The axonometric chart briefly expressed in the lump with the water floor of boiler water wall.
Fig. 3 is the water cooling tube in the water floor of the boiler water wall in explanatory diagram 2 and fin
The figure of welding structure.
Fig. 4 is the structure of the weld part inspection device of the boiler water wall briefly expressing the first embodiment
Figure.
Fig. 5 is the vacuum tank in exploded view 4 and the axonometric chart that briefly expresses.
Fig. 6 be the part of water floor checking object is cut open and briefly express in Fig. 4 true
The front view of empty van.
Fig. 7 is that the weld part briefly expressing the boiler water wall constituting the second embodiment checks device
The side view of vacuum tank.
Fig. 8 is the end wall and ora terminalis containment member observed under the direction representing arrow VIII in the figure 7
Figure.
Fig. 9 is the vacuum tank of the weld part inspection device of the boiler water wall by constituting the 3rd embodiment
With briefly express in the lump as the water floor of boiler water wall and the angle of sidewall checking object
Axonometric chart.
Figure 10 is the vacuum tank in enlarged drawing 9 and the axonometric chart that briefly expresses.
The axonometric chart observed from other direction that Figure 11 is the vacuum tank in enlarged drawing 9 and briefly expresses.
Figure 12 is the figure of three lines of vision of the vacuum tank in Fig. 9.
Detailed description of the invention
Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings.Wherein, embodiment is remembered
The size of component parts, material, shape and the relative configuration thereof etc. that carry are as long as no the note being particularly limited to
Carrying, the scope of the present invention is not defined in this record by its purport.
Fig. 1 is by the Sketch of boiler water wall 1 and the weld part inspection of the first to the 3rd embodiment
The vacuum tank 100,200,300 of device represents in the lump.Boiler water wall 1 have water floor 2,
Top water cold wall 3, face portion water-cooling wall 4 and sidepiece water-cooling wall 5, constitute water floor 2, front
The water cooling tube of portion's water-cooling wall 4 and top water cold wall 3 will couple together between dry drum 7 and ascites 8.
(the first embodiment)
Fig. 2 is vacuum tank 100 and the water floor that the weld part of the first embodiment checks device
The axonometric chart that the part of 2 briefly expresses in the lump.Interval that water floor 2 is specified by existence and also
The multiple water cooling tubes 10 arranging configuration, the fin configured in the way of blocking water cooling tube 10 gap each other
12 are constituted.Fin 12 is welded in water cooling tube 10 along the long side direction of water cooling tube 10, and across length
Blocking water cooling tube 10 gap each other, edge direction ground.Therefore, water floor 2 there are with
The curvature of the outer peripheral face of water cooling tube 10 is the most concavo-convex.
In more detail, as it is shown on figure 3, each water cooling tube 10 is by the attached in series via weld part 14
Multiple straight tube 10a constitute.It addition, fin 12 is made up of, in water-cooled multiple plate 12a, 12b
Between pipe 10 and plate 12a, 12b and plate 12a, 12b each other, utilize weld part 16
It is welded to each other.
It should be noted that in order to illustrate, weld part 16 in figure 3 marks hatching.
Fig. 4 briefly expresses the structure of the weld part inspection device of the first embodiment.It addition, Fig. 5 is
The axonometric chart decomposing vacuum tank 100 and briefly express.
Vacuum tank 100, in the case of abutting with the inspection object portion of water floor 2, is examined with constituting
A part for a part and fin 12 of checking the water cooling tube 10 as portion forms airtight vacuum in the lump
Room.
Connecting on vacuum tank 100 and have the pipe arrangement 102 communicated with vacuum chamber, pipe arrangement 102 is such as in T
Word branch.Be provided with air release valve 104 in the midway of the branch of a side, the front end of branch is to air
Split shed.Thus, by opening and closing air release valve 104, it is possible to enter between vacuum chamber and air
Row connection or blocking.
Aerofluxus valve 106 and exhaust apparatus inlet valve 108 it is provided with, separately in the midway of the branch of the opposing party
The front end of the branch of one side is connected with exhaust apparatus 110.
Exhaust apparatus 110 is made up of such as vacuum pump, air ejector, at air release valve 104
Close and time aerofluxus valve 106 and exhaust apparatus inlet valve 108 open, by the air in vacuum chamber to
Outside discharge.
Vacuum tank 100 is by pair of sidewalls 112, pair of end walls 114, roof 116, packing ring 118,
To lengthwise pressing plate 120, a pair narrow pressing plate 121, multiple screw 122, a pair handle 124,
Piezometer 126, a pair lateral margin containment member 128, a pair ora terminalis containment member 130 are constituted.
Piezometer 126 is such as made up of Bu Shi piezometer, and the pressure within showing vacuum chamber.
Roof 116, sidewall 112 and end wall 114 are each such as by the wall thickness of acrylic resin
Plate is constituted, and has light transmission.Roof 116 has rectangular flat shape, on the limit of roof 116
Edge posts the four smooth annular packing rings in limit 118.Packing ring 118 for example, rubber packing thing, across
Sidewall 112 and end wall 114 are used screw 122 to be fixed on roof 116 by packing ring 118.
Thus, roof 116 and sidewall 112 and the airtight combination of end wall 114.It addition, sidewall 112 and
End wall 114 be combined with each other airtightly by binding agent.
It should be noted that the head of screw 122 is via lengthwise pressing plate 120 and narrow pressing plate 121
And abut with roof 116, thus, packing ring 118 is uniformly compressed, roof 116 and sidewall 112
And by airtight sealing well between end wall 114.
Sidewall 112 has rectangular flat shape, the sidewall 112 in the opposition side of roof 116
Edge (sealing edge) is upper uses binding agent to fix the lateral margin containment member 128 having rectangular shape.Side
Edge containment member 128 has the length corresponding with the size of the sealing edge of sidewall 112 and width, whole
Sidewall 112 is covered in the range of individual region.It should be noted that formed on the sidewall 112 of a side
There is the through hole 131 for installing piezometer 126.
Fig. 6 is by a part for the front of vacuum tank 100 and the water floor 2 checking object in the lump
The figure briefly expressed.End wall 114 is formed for the through hole 132 that pipe arrangement 102 connects.
As shown in Figure 6, end wall 114 include having rectangular flat shape rectangular portion 134,
And integrally link and have the trapezoidal portion of generally trapezoidal flat shape with one side of rectangular portion 134
136.Wherein, the side in trapezoidal portion 136 has quadrant arc shape.
Thus, the edge (sealing edge) 138 of the end wall 114 of the opposition side of roof 116 includes by trapezoidal
The edge (the first linearity edge) 140 of the linearity that the minor face in portion 136 is constituted, by trapezoidal portion 136
The edge 142 of arc-shaped that constitutes of side and be made up of the part on one side of rectangular portion 134
The edge (the second linearity edge) 144 of linearity.And, at the sealing edge 138 of end wall 114
Upper use binding agent fixes ora terminalis containment member 130.It should be noted that ora terminalis containment member
130 are also combined by binding agent airtightly with lateral margin containment member 128.
Ora terminalis containment member 130 have length corresponding to the size of the sealing edge 138 with end wall 114 and
Width, covers sealing edge 138 in the range of whole region.Thus, ora terminalis containment member 130 wraps
Include and cover the first linearity sealing 146 of the first linearity edge 140, cover arc-shaped edge 142
Arc-shaped sealing 148 and cover the second linearity edge 144 the second linearity sealing
150。
When being in the free state not contacted with the inspection object portion of water floor 2, the first straight line
Shape sealing 146 has thickness T1, the outer surface of the first linearity sealing 146 and the first straight line
Shape edge 140 is parallel.Such as, thickness T1 is 12mm.
On the other hand, when being in the free state not contacted with the inspection object portion of water floor 2,
Arc-shaped sealing 148 and the second linearity sealing 150 have identical thickness T2, arc-shaped
The outer surface of sealing 148 and the second linearity sealing 150 is straight with arc-shaped edge 142 and second
Wire edge 144 is parallel.Such as, thickness T2 is 10mm.
It should be noted that the second linearity edge 144 and the second linearity sealing 150 can also
It is arc-shaped, as long as or can by lateral margin containment member 128 with ora terminalis containment member 130 airtightly
In conjunction with, it is also possible to omit this second linearity edge 144 and the second linearity sealing 150.
That is, the element that the second linearity edge 144 and the second linearity sealing 150 are not necessarily required to.
Preferably, thickness T1 is bigger than thickness T2, it is further preferred that thickness T1 is than thickness T2
Big amount and weld part 16 are suitable from the prominent projecting height (built-up welding thickness) of fin 12.As excellent
Selecting example, the difference (T1-T2) of thickness T1 and thickness T2 is in the scope of more than 2mm below 4mm
In, in the present embodiment, poor (T1-T2) is 2mm.
It is further preferred, that ora terminalis containment member 130 has by the first linearity sealing 146
The staggered region of the outer surface of outer surface and arc-shaped sealing 148 set in the way of cutting this region
The outer surface 152 that the inclined plane put is constituted.
Lateral margin containment member 128 and ora terminalis containment member 130 are made up of the bipeltate of non-breathable,
Preferably, it is made up of chloroprene rubber.As preference, as lateral margin containment member 128 and
Ora terminalis containment member 130, it is possible to use neoprene (registered trade mark) spongy body.
And, it is preferred that lateral margin containment member 128 and ora terminalis containment member 130 have 25 ± 5
Hardness in the range of degree.
Weld part to the boiler water wall using the first above-mentioned embodiment checks the welding of device
The inspection method in portion 16 illustrates.
First, expanding foam solution is applied to the inspection object portion of boiler water wall 1.Check that object portion is water-cooled
The part of the boiler water wall 1 that pipe 10 linearly extends.As expanding foam solution, such as, can use
Super bubble (super bubble) (MARKTEC Co., Ltd. system).
It follows that make vacuum tank 100 and check that object portion abuts.In the present embodiment, make very
When empty van 100 abuts with inspection object portion, as in figure 2 it is shown, with sidewall 112 along water cooling tube 10
Long side direction and the mode intersected of the long side direction of end wall 114 and water cooling tube 10 configure vacuum tank
100.It addition, now, abut with the outer surface of lateral margin containment member 128 with water cooling tube 10, ora terminalis
First linearity sealing 146 of containment member 130 abuts with fin 12, arc-shaped sealing 148
And second the mode that abuts with the outer surface of water cooling tube 10 of linearity sealing 150 configure vacuum tank
100。
After vacuum tank 100 is arranged in assigned position, close air release valve 104, the row of opening
Gas valve 106 and exhaust apparatus inlet valve 108, make exhaust apparatus 110 work.Thus, by vacuum
Case 100 is discharged to outside with the air checked in the vacuum chamber that object portion is formed, the pressure drop of vacuum chamber
Low.
According to JIS Z2329 2002, in the case of not having special provision, the pressure in vacuum tank subtracts
Till being depressed into the pressure forcing down more than 0.015MPa than air.In the present embodiment, when making pressure
In the case of being reduced to become the inspection pressure of 0.05MPa～0.06MPa, come really by visualization
Recognize the foaming of expanding foam solution.In the case of expanding foam solution foams, it is known that carry out, at this, the position foamed
Place there are the defects such as the aperture through weld part 16, crack.
It should be noted that in the present embodiment, roof 116 has light transmission, have as with
Function in the window portion of visualization.Sidewall 112 and end wall 114 can be configured to light transmission, non-
Any one in photosensitiveness.
When being confirmed the presence or absence of foaming by visualization, the inspection in this inspection object portion terminates.?
In the case of checking that the next one checks object portion, after closedown aerofluxus is with valve 106, opens air and release
Put with valve 104, in vacuum chamber, import extraneous air.It follows that hold handle 124, make vacuum
Case 100 moves and checks object portion to the next one, repeats said sequence.If making vacuum tank 100 edge
The amount that the long side direction of water cooling tube 10 moves the length of this vacuum tank 100, then can enter efficiently
Row checks.
The weld part of the boiler water wall according to the first above-mentioned embodiment checks device, end wall 114
Edge there is the edge 142 of arc-shaped, ora terminalis containment member 130 has the edge being installed on arc-shaped
The sealing 148 of the arc-shaped of 142.Therefore, even if in the inspection object portion of boiler water wall 1
Existing concavo-convex with what fin 12 was formed by water cooling tube (water cooling tube arranged side by side) 10, vacuum tank 100 also can
Enough and inspection object portion forms airtight vacuum chamber in the lump.Therefore, check device according to this weld part,
With boiler water wall 1 check in object portion concavo-convex independently, inspection object can be reliably detected
The defect run through of the weld part 16 in portion.
It addition, check device according to the weld part of the boiler water wall of the first above-mentioned embodiment, i.e.
Make the plate 12a of the weld part 16 between water cooling tube 10 and fin 12 or fin 12 each other
Weld part 16 highlights from the surrounding of this weld part 16, due to the first straight line abutted with weld part 16
The thickness of shape sealing 146 is relatively big, and therefore the first linearity sealing 146 can be with weld part 16
Prominent suitably deform.Therefore, even if weld part 16 highlights, it is also possible to utilize the first linearity
Sealing 146 by weld part 16 and the most reliably seals, and carrys out shape hence with vacuum tank 100
Become airtight vacuum chamber.
And then, check device, at pot according to the weld part of the boiler water wall of above-mentioned first embodiment
In the inspection object portion of stove water-cooling wall 1, in the case of water cooling tube 10 linearly extends, it is possible to
Utilize simple structure to make vacuum tank 100 form airtight vacuum chamber.
(the second embodiment)
Hereinafter, the weld part to the boiler water wall of the second embodiment checks that device illustrates.Need
Be noted that similar with the structure of the first embodiment in the structure for the second embodiment or
The identical part of person marks identical title or reference and simplifies or the description thereof will be omitted.
The weld part of the second embodiment checks that device is for checking that water cooling tube 10 is in arc-shaped bend
Part, such as, be used for checking corner formed by face portion water-cooling wall 4 and water floor 2.To this end,
The weld part of the second embodiment checks that the weld part of device and the first embodiment checks device not
It is only that with part, replaces vacuum tank 100 to use the vacuum tank 200 that represents brief configuration in Fig. 7.
As it is shown in fig. 7, it is the curve part of arc-shaped bend that water cooling tube 10 has along long side direction,
The sidewall 202 of vacuum tank 200 has the edge in the opposition side of roof 204 with the curve part of arc-shaped
(sealing edge) 206.The curve part of sealing edge 206 has fit corresponding with the curve part of water cooling tube 10
When curvature.Install at sealing edge 206 and there is certain thickness lateral margin containment member 208, lateral margin
Containment member 208 is to extend in the way of the water cooling tube 10 of the curve part with arc-shaped.
The end wall 210 of vacuum tank 200 vacuum tank 200 be installed on inspection object portion time, with water-cooled
The mode that the long side direction of pipe 10 intersects is fixed on roof 204.Therefore, end wall 210 is relative to smooth
Roof 204 and correspondingly tilt fixing with the curvature of water cooling tube 10.
It should be noted that in the figure 7, though eliminate packing ring, lengthwise pressing plate, narrow pressing plate,
Screw and handle, but vacuum tank 200 has these elements.
Fig. 8 represents the end wall 210 when looking up and ora terminalis along the side of the arrow VIII in Fig. 7
Containment member 212.
End wall 210 is made up of rectangular portion 214 and trapezoidal portion 216, the sealing edge 218 of end wall 210
It is made up of the first linearity edge 220, arc-shaped edge 222 and the second linearity edge 224.And
And, ora terminalis containment member 212 is by the first linearity sealing 226, arc-shaped sealing 228 and
Two linearity sealings 230 are constituted.Preferably, ora terminalis containment member 212 has by straight first
The staggered region of the outer surface of the outer surface of wire sealing 226 and arc-shaped sealing 228 is to cut
The outer surface 232 that the inclined plane that the mode in this region is arranged is constituted.
The weld part of the boiler water wall of the second embodiment checks that the using method of device is real with first
The situation executing mode is identical.
The weld part of the boiler water wall according to the second embodiment checks device, with the first embodiment
Situation in the same manner, with boiler water wall 1 check in object portion concavo-convex unrelated, it is possible to reliably
Detection checks the defect of the weld part 16 in object portion.
It addition, check device according to the weld part of the boiler water wall of above-mentioned second embodiment, with the
The situation of one embodiment is identical, even if weld part 16 highlights, utilizes the first linearity sealing 226
Also by weld part 16 and can the most reliably seal, be formed airtight hence with vacuum tank 200
Vacuum chamber.
And then, check device, at pot according to the weld part of the boiler water wall of above-mentioned second embodiment
In the inspection object portion of stove water-cooling wall 1, in the case of water cooling tube 10 extends in circular arc, it is possible to
Utilize simple structure to make vacuum tank 200 form airtight vacuum chamber.
(the 3rd embodiment)
Hereinafter, the weld part to the boiler water wall of the 3rd embodiment checks that device illustrates.Need
It is noted that in the structure for the 3rd embodiment and the first embodiment and second is implemented
The part that the structure of mode is similar or like, mark identical title or reference and simplify or
Person omits the description.
As it is shown in figure 9, the boiler water wall of the 3rd embodiment weld part check device check with
Use in the case of the angle of the water-cooling wall 1 that the mode of intersection water cooling tube 10 configures.Such inspection is right
Angle as formed by water floor 2 and sidepiece water-cooling wall 5 that portion is such as boiler water wall 1, sidepiece
The water cooling tube of the water cooling tube (water cooling tube arranged side by side) 10 of water-cooling wall 5 and fin 12 and water floor 2
Blocked by the fin 302 at the angle being welded in said structure between (intersection water cooling tube) 10.
Therefore, the weld part of the boiler water wall of the 3rd embodiment checks device and the first embodiment
The weld part of boiler water wall check the difference is that only of device, replace vacuum tank 100 to make
With vacuum tank 300.
Figure 10 and Figure 11 is the axonometric chart briefly expressing vacuum tank 300.Vacuum tank 300 is in order to check
The angle of boiler water wall 1 and there is an end wall 304, pair of sidewalls 306 and roof 308.
Vacuum tank 300 is arranged at inspection object portion time, end wall 304 with sidepiece water-cooling wall 5
The mode that the long side direction of water cooling tube 10 intersects configures.At the end wall 304 opposed with sidepiece water-cooling wall 5
Edge (sealing edge) 310 on ora terminalis containment member 312 is installed.
And, when vacuum tank 300 is arranged at inspection object portion, sidewall 306 is with along sidepiece water-cooled
The mode of the long side direction of the water cooling tube 10 of wall 5 configures.At the sidewall opposed with sidepiece water-cooling wall 5
On the edge (sealing edge) 314 of 306, lateral margin containment member 316 is installed.On the other hand, with bottom
On the edge (sealing edge) 318 of the sidewall 306 that water-cooling wall 2 is opposed, lateral margin containment member 320 is installed.
It addition, vacuum tank 300 be arranged at inspection object portion time, roof 308 with sidepiece water-cooling wall
5 opposed modes configure.(close at the edge of the roof 308 opposed with the water cooling tube 10 of water floor 2
Envelope edge) apical margin containment member 324 is installed on 322.
Figure 12 is the figure of brief three line of vision of vacuum tank 300.End wall 304 by rectangular portion 325,
Two the trapezoidal portions 326 being connected with one side of rectangular portion 325 one are constituted.The sealing of end wall 304
Edge 310 has the first linearity edge 326, the 328, second linearity edge 330, arc-shaped edge
And the arc-shaped edge 332 of semicircle arcuation.And, ora terminalis containment member 312 has the first linearity
Sealing 334, arc-shaped sealing the 336, second linearity sealing 338 and covering arc-shaped edge
The arc-shaped sealing 340 of the semicircle arcuation in portion 332.
Preferably, ora terminalis containment member 312 has by the appearance at the first linearity sealing 334
The staggered region of the outer surface of face and arc-shaped sealing 336,340 sets in the way of cutting this region
The outer surface 342 that the inclined plane put is constituted.
On the other hand, sidewall 306 by rectangular portion 343 and with rectangular portion 343 one phase
Trapezoidal portion 344 even is constituted.The sealing edge 314 of sidewall 306 have the first linearity edge 345,
Arc-shaped edge 346 and the second linearity edge 348.Lateral margin containment member 320 has the first straight line
Shape sealing 350, arc-shaped sealing 352 and the second linearity sealing 354.
Preferably, lateral margin containment member 320 has by the appearance at the first linearity sealing 350
What the staggered region of the outer surface of face and arc-shaped sealing 352 was arranged in the way of cutting this region inclines
The outer surface 356 that inclined-plane is constituted.
It should be noted that in Figure 10 to Figure 12, though eliminating packing ring, lengthwise pressing plate, narrow
Width pressing plate, screw and handle, but vacuum tank 300 has these elements.
Weld part according to the 3rd embodiment checks the vacuum tank 300 of device, sets at vacuum tank 300
When being placed in inspection object portion, three water cooling tubes of ora terminalis containment member 312 and sidepiece water-cooling wall 5 (and
Row water cooling tube) fin 12 between 10 and these water cooling tubes 10 abuts.And, lateral margin containment member
316 abut with the water cooling tube 10 at the two ends in three water cooling tubes 10, lateral margin containment member 320 and angle
Fin (the second fin) 302 and the water cooling tube (intersection water cooling tube) 10 of water floor 2 support
Connect.It addition, apical margin containment member 324 abuts with the water cooling tube 10 of water floor 2.
The weld part of the boiler water wall of the 3rd embodiment checks that the using method of device is real with first
The situation executing mode is identical.
The weld part of the boiler water wall according to the 3rd embodiment checks device, with the first embodiment
Situation in the same manner, it is possible to boiler water wall 1 check in object portion concavo-convex independently, reliably
Ground detection checks the defect run through of the weld part 16 in object portion.
It addition, check device according to the weld part of the boiler water wall of above-mentioned 3rd embodiment, with the
The situation of one embodiment in the same manner, even if weld part 16 highlights, also utilizes the first linearity to seal
Portion 324,350 by weld part 16 and the most reliably seals, and carrys out shape hence with vacuum tank 300
Become airtight vacuum chamber.
It addition, check device according to the weld part of the boiler water wall of above-mentioned 3rd embodiment, due to
Vacuum tank 300 forms vacuum chamber in the lump with water floor 2 and sidepiece water-cooling wall 5 the two wall, because of
This also is able to reliably detect the fin 302 of angle of departure and the water cooling tube 10 of sidepiece water-cooling wall 5 and fin
The defect run through of the weld part 16 between sheet 12.In other words, in the inspection of boiler water wall 1
In object portion, though the water cooling tube (water-cooled arranged side by side of the wall of the side at the formation angle of boiler water wall 1
Pipe) there are the water cooling tube (intersection water cooling tube) 10 of other walls near 10 in the case of, also can
Enough utilize simple structure, make vacuum tank 300 form airtight vacuum chamber.
The present invention is not limited to above-mentioned first to the 3rd embodiment, is also contained in first to the 3rd real
Execute mode each in changed form, the form that combines these forms.
Such as, in the vacuum tank 100 of the first embodiment, end wall 114 and ora terminalis containment member 130
Stride across two water cooling tube 10 ground to extend but it also may be across the water cooling tube 10 ground extension of more than three.
In other words, vacuum tank 100 can also with the water cooling tube 10 of more than three of fin 12 both sides in the lump
Form vacuum chamber.
But, due to water cooling tube 10, the dimensional tolerance of fin 12, deformation etc., end wall 114 and end
Edge containment member 130 more increases, sealing more reduces, therefore end wall 114 and ora terminalis containment member 130
Preferably up to stride across three water cooling tube 10 ground to extend, more preferably stride across water cooling tube 10 ground of less than two
Extend.
Claims (6)
1. the weld part of boiler water wall checks a device, and this boiler water wall possesses configuration side by side
Multiple water cooling tubes arranged side by side, blocked the fin in adjacent water cooling tube described arranged side by side gap each other by welding
Sheet,
The weld part of described boiler water wall checks that device is characterised by possessing:
Vacuum tank, a part at least two adjacent described water cooling tubes arranged side by side and one of described fin
Divide to constitute and check that object portion, this vacuum tank and described inspection object portion form vacuum chamber in the lump；And
Exhaust apparatus, it is connected with described vacuum tank,
Described vacuum tank has:
Window portion, it has light transmission；
Two sidewalls, it is with along in described two water cooling tubes arranged side by side, corresponding water cooling tube arranged side by side
Mode is respectively configured；
At least one end wall, it configures in the way of the long side direction with described water cooling tube arranged side by side intersects；
Lateral margin containment member, it is installed on the edge of described sidewall, and is used for the edge to described sidewall and institute
State and seal between water cooling tube arranged side by side；And
Ora terminalis containment member, it is installed on the edge of described end wall, and is used for the edge to described end wall and institute
State and seal between water cooling tube arranged side by side and described fin,
The edge of described end wall has:
Edge along the linearity of described fin；And
Along the edge of the arc-shaped of described water cooling tube arranged side by side,
Described ora terminalis containment member has:
It is installed on the sealing of the linearity of the edge of described linearity；And
It is installed on the sealing of the arc-shaped of the edge of described arc-shaped.
The weld part of boiler water wall the most according to claim 1 checks device, and its feature exists
In,
The thickness of the sealing of described linearity is bigger than the thickness of the sealing of described arc-shaped.
The weld part of boiler water wall the most according to claim 1 and 2 checks device, its feature
It is,
The weld part of described boiler water wall checks that device is in the inspection object portion of described boiler water wall
Place, use in the case of described water cooling tube arranged side by side linearly extends,
The long side direction that described vacuum tank has along described water cooling tube arranged side by side is separated from each other, is respectively mounted
There are two end walls of described ora terminalis containment member.
The weld part of boiler water wall the most according to claim 1 and 2 checks device, its feature
It is,
The weld part of described boiler water wall checks that device is in the inspection object portion of described boiler water wall
Place, use in the case of described water cooling tube arranged side by side has the curve part of arc-shaped along long side direction,
Described vacuum tank has:
Two end walls, it is separated from each other along the long side direction of described water cooling tube arranged side by side, and is respectively mounted
There is described ora terminalis containment member；
Sidewall, it has the edge of the curve part with arc-shaped along described water cooling tube arranged side by side；And
Lateral margin containment member, it is installed along the edge of described sidewall.
The weld part of boiler water wall the most according to claim 1 and 2 checks device, its feature
It is,
The weld part of described boiler water wall checks that device uses in the case of following: along with described
Intersection water cooling tube that the direction that side by side water cooling tube intersects extends and described water cooling tube arranged side by side and described fin
The gap constituted is blocked by the second fin, and described water cooling tube arranged side by side blocks adjacent with described fin respectively
Pipe gap each other,
Described vacuum tank has:
One end wall, it separates with described second fin on the long side direction of described water cooling tube arranged side by side,
And described ora terminalis containment member is installed；
Sidewall, it extends between water cooling tube with described the intersection at described end wall；
Roof, it is combined with described end wall and described sidewall；
First containment member, it includes described ora terminalis containment member and described lateral margin containment member, and right
Described sidewall was carried out between water cooling tube and described second fin with described water cooling tube arranged side by side, described intersection
Seal；And
Second containment member, described roof is sealed between water cooling tube by it with described the intersection.
6. a weld part inspection method for boiler water wall, this boiler water wall possesses configuration side by side
Multiple water cooling tubes arranged side by side, blocked the fin in adjacent water cooling tube described arranged side by side gap each other by welding
Sheet,
The weld part inspection method of described boiler water wall is characterised by, including following operation:
The weld part preparing the boiler water wall according to any one of claim 1 to 5 checks device；
Expanding foam solution is given to the inspection object portion of described boiler water wall；
Utilize described vacuum tank to form described vacuum chamber；
Use the exhaust apparatus that is connected with described vacuum tank and make the pressure reduction in described vacuum chamber；And
Confirm that the described expanding foam solution in described vacuum tank is with or without foaming by visualization.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012042570A JP5734224B2 (en) | 2012-02-28 | 2012-02-28 | Boiler water-cooled wall weld zone inspection device and weld zone inspection method |
| JP2012-042570 | 2012-02-28 | ||
| PCT/JP2013/054991 WO2013129411A1 (en) | 2012-02-28 | 2013-02-26 | Weld inspection device and weld inspection method for boiler water-cooled wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104011524A CN104011524A (en) | 2014-08-27 |
| CN104011524B true CN104011524B (en) | 2016-08-24 |
Family
ID=49082608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380004492.5A Expired - Fee Related CN104011524B (en) | 2012-02-28 | 2013-02-26 | The weld part of boiler water wall checks device and weld part inspection method |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5734224B2 (en) |
| KR (1) | KR101643067B1 (en) |
| CN (1) | CN104011524B (en) |
| BR (1) | BR112014020553B1 (en) |
| IN (1) | IN2014MN01702A (en) |
| WO (1) | WO2013129411A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498699A (en) * | 2014-11-25 | 2015-04-08 | 西安热工研究院有限公司 | Heat treatment apparatus after local welding of boiler membrane water screen, and technology thereof |
| US11307114B2 (en) | 2018-12-17 | 2022-04-19 | National Oilwell Varco, L.P. | Pressure-based flaw detection |
| CN112192083B (en) * | 2020-09-26 | 2022-05-17 | 国家能源集团谏壁发电厂 | Construction process for preventing weld joint cracks of water wall pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166834A (en) * | 1983-03-14 | 1984-09-20 | Hitachi Ltd | Leakage detecting and leakage preventing device of lining tank |
| JPH10227712A (en) * | 1997-02-18 | 1998-08-25 | Japan Atom Energy Res Inst | Method for searching leaking part of pipe and vacuum device |
| CN101726395A (en) * | 2009-12-17 | 2010-06-09 | 浙江东海岸船业有限公司 | Method for testing tightness of welding lines |
| CN102519678A (en) * | 2011-12-22 | 2012-06-27 | 广新海事重工股份有限公司 | Weld seam airtight detection method and used vacuum welding seam airtight detector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54119979A (en) * | 1978-03-09 | 1979-09-18 | Seiken Co | Method and device for detecting leakage of fluid from coupled part |
| JPS59175153U (en) * | 1983-05-11 | 1984-11-22 | 三菱重工業株式会社 | vacuum box |
| JPS62148933U (en) | 1986-03-14 | 1987-09-21 | ||
| JPS62165542U (en) * | 1986-04-10 | 1987-10-21 | ||
| JPH01240833A (en) * | 1988-03-22 | 1989-09-26 | Toshiba Eng & Constr Co Ltd | Method and apparatus for testing pressure resistance of piping |
-
2012
- 2012-02-28 JP JP2012042570A patent/JP5734224B2/en active Active
-
2013
- 2013-02-26 BR BR112014020553-1A patent/BR112014020553B1/en active IP Right Grant
- 2013-02-26 KR KR1020147022418A patent/KR101643067B1/en active IP Right Grant
- 2013-02-26 CN CN201380004492.5A patent/CN104011524B/en not_active Expired - Fee Related
- 2013-02-26 IN IN1702MUN2014 patent/IN2014MN01702A/en unknown
- 2013-02-26 WO PCT/JP2013/054991 patent/WO2013129411A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166834A (en) * | 1983-03-14 | 1984-09-20 | Hitachi Ltd | Leakage detecting and leakage preventing device of lining tank |
| JPH10227712A (en) * | 1997-02-18 | 1998-08-25 | Japan Atom Energy Res Inst | Method for searching leaking part of pipe and vacuum device |
| CN101726395A (en) * | 2009-12-17 | 2010-06-09 | 浙江东海岸船业有限公司 | Method for testing tightness of welding lines |
| CN102519678A (en) * | 2011-12-22 | 2012-06-27 | 广新海事重工股份有限公司 | Weld seam airtight detection method and used vacuum welding seam airtight detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013178180A (en) | 2013-09-09 |
| KR20140112549A (en) | 2014-09-23 |
| KR101643067B1 (en) | 2016-07-26 |
| JP5734224B2 (en) | 2015-06-17 |
| BR112014020553B1 (en) | 2022-09-06 |
| IN2014MN01702A (en) | 2015-05-29 |
| WO2013129411A1 (en) | 2013-09-06 |
| BR112014020553A2 (en) | 2017-06-20 |
| CN104011524A (en) | 2014-08-27 |
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