CN220729551U - Zirconium composite sheet welding seam leak hunting structure - Google Patents
Zirconium composite sheet welding seam leak hunting structure Download PDFInfo
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- CN220729551U CN220729551U CN202322432433.1U CN202322432433U CN220729551U CN 220729551 U CN220729551 U CN 220729551U CN 202322432433 U CN202322432433 U CN 202322432433U CN 220729551 U CN220729551 U CN 220729551U
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- zirconium
- leakage detecting
- shell
- layer
- carbon steel
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- 229910052726 zirconium Inorganic materials 0.000 title claims abstract description 135
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 238000003466 welding Methods 0.000 title claims abstract description 55
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 40
- 239000010962 carbon steel Substances 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003754 zirconium Chemical class 0.000 description 1
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Abstract
The utility model relates to a zirconium composite plate welding seam leakage detection structure, which comprises: the sealing welding is adopted between the zirconium filler strip and the shell zirconium layer, a first cavity is formed between the zirconium filler strip and the shell zirconium layer as well as between the zirconium filler strip and the shell zirconium layer, one end of the leakage detection pipe is in threaded connection with the first leakage filler strip, the sealing welding is adopted between the other end of the leakage detection pipe and the zirconium filler strip, a first leakage detection hole is formed in the first leakage detection nozzle, a first pore canal is formed in the leakage detection pipe, a second cavity is formed between the zirconium filler strip and the shell zirconium layer as well as between the first pore canal and the first leakage detection hole, a second leakage detection hole is formed in the second leakage detection nozzle, and a second opening is formed in the welding seam, and the second cavity, the second opening and the second leakage detection hole are mutually communicated, so that the service life of the shell is greatly prolonged.
Description
[ field of technology ]
The utility model relates to the field of chemical machinery, in particular to a zirconium composite plate welding seam leakage detection structure.
[ background Art ]
The reaction vessel refers to a vessel for completing physical reaction and chemical reaction of a medium, and is used in industrial production, particularly in chemical industry, medicine industry, chemical fertilizer industry, refining industry and the like, as a pressure-bearing device, because of the process requirement. Some of the reaction vessels are corrosive substances, so that the shells of the reaction vessels are generally made of zirconium composite plates, zirconium has better corrosion resistance, and the zirconium composite plates comprise: the manufacturing process of the shell is that firstly, a zirconium composite plate is cut and curled and welded to form a small cylinder section, then, the small cylinder section is overlapped and welded to form the shell, and a person skilled in the art knows that zirconium and carbon steel can not be directly welded as two different materials, so that the method is more commonly adopted in the art, the zirconium layer at a welding seam is dug out, then a zirconium filler strip is filled in, spot welding is adopted between the zirconium filler strip and the zirconium layer of the shell, finally, a zirconium flitch is covered at the outer side of the zirconium filler strip, sealing welding is adopted between the zirconium flitch and the zirconium layer of the shell, in order to monitor whether leakage exists at the welding seam, the welding seam is generally divided into a plurality of sections, and each section is provided with a leakage detecting nozzle to monitor whether leakage exists at the section, and please refer to 1 and fig. 2, the leakage detecting structure of the zirconium composite plate in the prior art is disclosed, and the leakage detecting structure comprises: the method comprises the steps of adopting intermittent welding between a shell zirconium layer 1 ', a shell carbon steel layer 2 ', a zirconium filler strip 3 ', a zirconium flitch 4 ' and a leakage detecting nozzle 5 ', wherein the zirconium filler strip 3 ' and the shell zirconium layer 1 ' are covered by the zirconium flitch 4 ' at the outer side of the zirconium filler strip 3 ', adopting sealing welding between the zirconium flitch 4 ' and the shell zirconium layer 1 ', forming a first leakage gap 6 ' between the zirconium flitch 4 ' and the shell zirconium layer 1 ', forming a second leakage gap 7 ' between the zirconium filler strip 3 ' and the shell zirconium layer 1 ', forming a third leakage gap 8 ' between the zirconium filler strip 3 ' and the shell carbon steel layer 2 ', and leading a main leakage point 9 ' of the welding seam to be generated at the welding position of the zirconium flitch 4 ' and the shell zirconium layer 1 ', wherein after the leakage is influenced by a medium in the shell, the medium passes through the first leakage gap 6 ' and the second leakage gap 7 ' and reaches a leakage detecting nozzle 10 ' in a structure after the leakage detecting hole is formed in the welding seam, and finally, the leakage is detected from the third leakage gap 10 ' is formed in the structure: the leakage path of the medium will pass through the shell carbon steel layer 2 ', so that corrosion will occur to the shell carbon steel layer 2', thereby affecting the service life of the shell.
Therefore, there is a need to provide a seam leakage detection structure for zirconium composite boards, which solves the above technical problems.
[ utility model ]
In order to solve the problems, the utility model aims to provide a zirconium composite plate welding seam leakage detection structure capable of prolonging the service life of a shell.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a zirconium composite panel weld leak detection structure comprising: the device comprises a shell zirconium layer, a shell carbon steel layer, a zirconium filler strip, a zirconium flitch, a first leakage detecting nozzle, a second leakage detecting nozzle and a leakage detecting pipe, wherein a groove is formed in a welding seam of the shell zirconium layer, the zirconium filler strip is contained in the groove, sealing welding is adopted between the shell zirconium layer, the zirconium flitch covers the outer side of the zirconium filler strip, sealing welding is adopted between the zirconium flitch and the shell zirconium layer, a first cavity is formed between the zirconium flitch and the shell zirconium layer and the zirconium filler strip, sealing welding is adopted between the first leakage detecting nozzle and the shell carbon steel layer, one end of the leakage detecting pipe is connected with the first leakage detecting nozzle through threads, sealing welding is adopted between the other end of the leakage detecting pipe and the zirconium filler strip after passing through the welding seam and the zirconium filler strip, a first leakage detecting hole is formed in the first leakage detecting nozzle, a first pore canal is formed in the leakage detecting pipe, a first cavity, a first pore canal and a first carbon steel hole are mutually communicated with each other, a first cavity is formed between the zirconium filler strip and the shell zirconium layer and the shell zirconium filler strip, sealing welding is formed between the shell layer and the second carbon steel layer, a second hole is formed between the second carbon steel layer and the second carbon steel layer, and the second leakage detecting nozzle is formed between the second carbon steel layer and the second leakage detecting nozzle, and the second leakage detecting hole is formed between the second cavity and the second carbon steel layer, and the second leakage detecting hole is formed between the second cavity and the second hole.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the first leakage detecting nozzle is provided with an inner cone thread, and the leakage detecting pipe is provided with an outer cone thread matched with the inner cone thread of the first leakage detecting nozzle.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the first leakage detecting nozzle is made of carbon steel.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the second leakage detecting nozzle is made of carbon steel.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the leak detection pipe is made of zirconium material.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the first cavity and the second cavity are separated.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the forward leak detection path does not pass through the shell carbon steel layer.
Preferably, the welding seam leakage detecting structure of the zirconium composite board in the utility model is further provided with: the first leakage detecting nozzle and the second leakage detecting nozzle are respectively connected with the intermediate signal pipe.
Compared with the prior art, the utility model has the following beneficial effects: compared with a leakage detection path in the prior art, the utility model is improved and provided with a front leakage detection path and a rear leakage detection path, and the front leakage detection path does not pass through the shell carbon steel layer, so that double insurance of medium leakage detection is realized, and medium does not flow through the shell carbon steel layer only under the condition of leakage of a conventional main leakage point, thereby preventing the medium from corroding the shell carbon steel layer, further prolonging the service life of the shell.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a prior art leak detection structure for a zirconium composite plate weld.
Fig. 2 is a schematic cross-sectional view taken along line A-A of fig. 1.
Fig. 3 is a schematic structural diagram of a welded seam leak detection structure of a zirconium composite board in the utility model.
Fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 3.
Fig. 5 is a schematic cross-sectional view taken along line C-C of fig. 3.
Fig. 6 is a schematic cross-sectional view taken along line D-D of fig. 3.
Fig. 7 is a schematic structural diagram of the first leakage detecting nozzle after being separated from the leakage detecting pipe.
In fig. 1 to 2: 1 ', a shell zirconium layer, 2', a shell carbon steel layer, 3 ', a zirconium backing strip, 4', a zirconium flitch, 5 ', a leak detection nozzle, 6', a first leak gap, 7 ', a second leak gap, 8', a third leak gap, 9 ', a main leak point, 10' and a hole.
Fig. 3 to 7: 1. the shell zirconium layer, 10, the groove, 11, the first secondary leakage point, 2, the shell carbon steel layer, 3, the zirconium filler strip, 30, the second cavity, 31, the second secondary leakage point, 4, the zirconium flitch, 40, the first cavity, 5, the first leak mouth, 50, the internal cone screw thread, 51, the first leak hole, 6, the second leak mouth, 60, the second leak hole, 7, the leak hunting tube, 70, the external cone screw thread, 71, the first pore canal, 8, the welding seam, 80, the second trompil, 9, the main leakage point.
[ detailed description ] of the utility model
The following describes the welding seam leakage detection structure of the zirconium composite board in further detail through specific embodiments.
Referring to fig. 3 to 7, a leak detection structure for a welding seam of a zirconium composite board includes: the shell zirconium layer 1, the shell carbon steel layer 2, the zirconium filler strip 3, the zirconium flitch 4, the first leakage detecting mouth 5, the second leakage detecting mouth 6 and the leakage detecting pipe 7, in this embodiment, the first leakage detecting mouth 5 and the second leakage detecting mouth 6 are all made of carbon steel materials, the leakage detecting pipe 7 is made of zirconium materials, and the first leakage detecting mouth 5 and the second leakage detecting mouth 6 are respectively connected with an intermediate signal pipe (not shown). The casing zirconium layer 1 is equipped with recess 10 in welding seam 8 department, adopt seal welding between the zirconium layer 1 of the casing in this recess 10 is acceptd to zirconium filler strip 3, zirconium flitch 4 covers in the outside of zirconium filler strip 3, adopt seal welding between zirconium flitch 4 and the casing zirconium layer 1, form first cavity 40 between zirconium flitch 4 and casing zirconium layer 1 and the zirconium filler strip 3, first leak hunting spout 5 set up in the outside of welding seam 8 and adopt seal welding with between the casing carbon steel layer 2, adopt threaded connection between leak hunting pipe 7's one end and the first leak hunting spout 5, threaded connection has solved zirconium and carbon steel and can not direct welded technical problem. The other end of the leak detection pipe 7 passes through the welding seam 8 and the zirconium filler strip 3 to be welded with the zirconium filler strip 3 in a sealing way, in the embodiment, the first leak detection nozzle 5 is provided with an inner cone thread 50, and the leak detection pipe 7 is provided with an outer cone thread 70 matched with the inner cone thread 50 of the first leak detection nozzle 5. The first leakage detecting nozzle 5 is internally provided with a first leakage detecting hole 51, a first pore canal 71 is formed in the leakage detecting pipe 7, and the first cavity 40, the first pore canal 71 and the first leakage detecting hole 51 are communicated with each other, so that a front leakage detecting path is formed, and the front leakage detecting path does not pass through the shell carbon steel layer 2.
A second cavity 30 is formed between the zirconium backing strip 3 and the shell zirconium layer 1 and between the zirconium backing strip and the shell carbon steel layer 2, and the second cavity 30 is separated from the first cavity 40. The second leakage detecting nozzle 6 is arranged on the outer side of the welding seam 8 and is sealed with the shell carbon steel layer 2, a second leakage detecting hole 60 is arranged in the second leakage detecting nozzle 6, a second opening 80 is arranged at the welding seam 8, and the second cavity 30, the second opening 80 and the second leakage detecting hole 60 are mutually communicated, so that a subsequent leakage detecting path is formed.
The working principle of the zirconium composite plate welding seam leakage detection structure in the utility model is as follows: once the main leakage point 9 leaks at the welding position of the zirconium flitch 4 and the zirconium layer 1 of the shell, the medium in the shell can sequentially pass through the first cavity 40 and the first pore canal 71 and finally leak out of the first leakage detection hole 51 to trigger external alarm (namely, the medium can flow out of the front leakage detection path), and then a worker overhauls the main leakage point according to the alarm. The second leakage detecting nozzle 6 has the function that under the condition that the main leakage point 9 leaks, the welding part (namely the first secondary leakage point 11) of the zirconium gasket strip 3 and the shell zirconium layer 1 and/or the welding part (namely the second secondary leakage point 31) of the zirconium gasket strip 3 and the leakage detecting tube 7 also leak simultaneously, so that a medium can pass through the first cavity 40, the second cavity 30 and the second opening 80 in sequence and finally leak out of the second leakage detecting hole 60 so as to cause external alarm (namely the medium can flow out from the secondary leakage detecting path), the leakage of the secondary leakage points 11 and 31 is equivalent to the situation that the first cavity 40 and the second cavity 30 are opened, and the secondary leakage detecting path passes through the shell carbon steel layer 2, but because the probability that the secondary leakage detecting path passes through the secondary leakage detecting path is very small, the medium can be detected by the first leakage detecting nozzle 5 in time when the main leakage point 9 leaks, and then workers can detect the main leakage point 9 in time, and the secondary leakage point 9 and the second leakage point 11 can be detected simultaneously, and the service life of the utility model can be prolonged, and the service life of the secondary leakage detecting nozzle is still quite low, and the utility model can be prolonged, and the service life of the secondary leakage detecting nozzle is realized simultaneously when the main leakage point 9 is detected by the conventional leakage point is only and the leakage point is detected by the low.
The above-described embodiments are merely illustrative of the principles and functions of the present utility model, and some of the practical examples, not intended to limit the utility model; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present utility model.
Claims (8)
1. A zirconium composite sheet welding seam leak hunting structure, its characterized in that: comprising the following steps: the device comprises a shell zirconium layer, a shell carbon steel layer, a zirconium filler strip, a zirconium flitch, a first leakage detecting nozzle, a second leakage detecting nozzle and a leakage detecting pipe, wherein a groove is formed in a welding seam of the shell zirconium layer, the zirconium filler strip is contained in the groove, sealing welding is adopted between the shell zirconium layer, the zirconium flitch covers the outer side of the zirconium filler strip, sealing welding is adopted between the zirconium flitch and the shell zirconium layer, a first cavity is formed between the zirconium flitch and the shell zirconium layer and the zirconium filler strip, sealing welding is adopted between the first leakage detecting nozzle and the shell carbon steel layer, one end of the leakage detecting pipe is connected with the first leakage detecting nozzle through threads, sealing welding is adopted between the other end of the leakage detecting pipe and the zirconium filler strip after passing through the welding seam and the zirconium filler strip, a first leakage detecting hole is formed in the first leakage detecting nozzle, a first pore canal is formed in the leakage detecting pipe, a first cavity, a first pore canal and a first carbon steel hole are mutually communicated with each other, a first cavity is formed between the zirconium filler strip and the shell zirconium layer and the shell zirconium filler strip, sealing welding is formed between the shell layer and the second carbon steel layer, a second hole is formed between the second carbon steel layer and the second carbon steel layer, and the second leakage detecting nozzle is formed between the second carbon steel layer and the second leakage detecting nozzle, and the second leakage detecting hole is formed between the second cavity and the second carbon steel layer, and the second leakage detecting hole is formed between the second cavity and the second hole.
2. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the first leakage detecting nozzle is provided with an inner cone thread, and the leakage detecting pipe is provided with an outer cone thread matched with the inner cone thread of the first leakage detecting nozzle.
3. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the first leakage detecting nozzle is made of carbon steel.
4. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the second leakage detecting nozzle is made of carbon steel.
5. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the leak detection pipe is made of zirconium material.
6. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the first cavity and the second cavity are separated.
7. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the forward leak detection path does not pass through the shell carbon steel layer.
8. The zirconium composite board weld leakage detecting structure as defined in claim 1, wherein: the first leakage detecting nozzle and the second leakage detecting nozzle are respectively connected with the intermediate signal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322432433.1U CN220729551U (en) | 2023-09-08 | 2023-09-08 | Zirconium composite sheet welding seam leak hunting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322432433.1U CN220729551U (en) | 2023-09-08 | 2023-09-08 | Zirconium composite sheet welding seam leak hunting structure |
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| Publication Number | Publication Date |
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| CN220729551U true CN220729551U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322432433.1U Active CN220729551U (en) | 2023-09-08 | 2023-09-08 | Zirconium composite sheet welding seam leak hunting structure |
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2023
- 2023-09-08 CN CN202322432433.1U patent/CN220729551U/en active Active
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