CN203274610U - Measure gauge for detecting expanding-joint result of heat-exchange tube and tube plate - Google Patents
Measure gauge for detecting expanding-joint result of heat-exchange tube and tube plate Download PDFInfo
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- CN203274610U CN203274610U CN 201320287225 CN201320287225U CN203274610U CN 203274610 U CN203274610 U CN 203274610U CN 201320287225 CN201320287225 CN 201320287225 CN 201320287225 U CN201320287225 U CN 201320287225U CN 203274610 U CN203274610 U CN 203274610U
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Abstract
The utility model provides a measure gauge for detecting an expanding-joint result of a heat-exchange tube and a tube plate. The measure gauge comprises a measuring tube and a measuring rod. The measuring tube is provided with an accommodating through hole which extends in an axial direction, an elastic pressing structure changing the outer diameter of the measuring tube is formed at a first end of the measuring tube, the accommodating through hole comprises a first hole segment located at the first end of the measuring tube and a second hole segment extending to a second end of the measuring tube, the first hole segment has a cone-shaped hole wall, and the inner diameter of the first hole segment toward the first end of the measuring tube decreases gradually. A first end of the measuring rod is movably disposed in the accommodating through hole, a second end of the measuring rod is located outside the accommodating through hole, and the first end of the measuring rod is provided with a conical-surface segment matching the first hole segment. The measuring rod is provided with a first position and a second mark position. The first position and the second mark position separately correspond to a minimum and a maximum which meet standard requirements after the heat-exchange tube is in an expanding-joint relationship with the tube plate. According to the utility model, the problem that no special detecting tool can be used to detect in a real-time manner after the heat-exchange tube is in the expanding-joint relationship with the tube plate in the prior art is effectively solved.
Description
Technical field
The utility model is specifically related to a kind of gauge for detection of heat exchanger tube and tube plate expanded-connecting result.
Background technology
In petrochemical complex, coal liquefaction pressure vessels for the chemical industry, equipment Manufacture Process, need to make according to product the requirement of the Its Relevant Technology Standards standards such as pattern, " technical regulation is examined in fixed pressure vessel safety supervision ", GB151-1999 " shell-and-tube heat exchanger ", physical dimension to product is measured, to confirm whether product is qualified.In the equipment of petrochemical complex, coal liquefaction chemical plant installations, according to the requirement of liquefaction and chemical process, need a large amount of shell-and-tube heat exchangers.In the shell-and-tube heat exchanger manufacture process, connection of tube and tube sheet is one of critical process.The syndeton of pipe for shell-and-tube exchanger and tube sheet is according to the regulation of GB151-1999, when adopting expanded and welded tube joint and use mode, has swollen seal weld and the intensity of adding of intensity to weld and stick on swollen two kinds of forms.These two kinds of forms stipulate that all tube sheet end 15mm scope is not swollen.Due to the restriction of structure, make the detection difficulty comparatively after heat exchanger tube and tube plate expanded-connecting.
At present, in petrochemical complex, coal liquefaction chemical plant installations shell-and-tube heat exchanger manufacture process used, there is no special-purpose testing tool after heat exchanger tube and tube plate expanded-connecting, inspect by random samples with micrometer inside caliper when explicitly calling for, owing to can not detecting in real time heat exchanger tube and whether tube plate expanded-connecting is qualified, be difficult to guarantee the quality of expanding joint process, expanded joint occur not in place or leak the problems such as swollen.
The utility model content
The utility model aims to provide a kind of gauge for detection of heat exchanger tube and tube plate expanded-connecting result, does not carry out there is no special-purpose testing tool after heat exchanger tube and tube plate expanded-connecting in the solution prior art problem that detects in real time.
To achieve these goals, according to an aspect of the present utility model, a kind of gauge for detection of heat exchanger tube and tube plate expanded-connecting result is provided, comprise: measuring tube, has the receiving opening that in axial direction extends, the first end of measuring tube is formed with the elasticity pressing structure that changes the measuring tube external diameter, receiving opening comprises the first hole section of the first end that is positioned at measuring tube and extends to the second hole section of the second end of measuring tube, the first hole section has the taper hole wall, and the internal diameter of the first hole section reduces gradually towards the first end of measuring tube; Sounding rod, the first end of sounding rod are arranged in receiving opening movably, and the second end of sounding rod is positioned at the receiving opening outside, and the first end of sounding rod has the conical surface section suitable with the first hole section; Sounding rod has the first mark position and the second mark position, and the first mark position and the second mark position correspond respectively to minimum value and the maximal value that meets standard code after heat exchanger tube and tube plate expanded-connecting.
Further, the elasticity pressing structure comprises a plurality of press sections, and a plurality of press sections circumferentially evenly distribute along measuring tube, have the gap between two press sections, and the inwall of a plurality of press sections forms the first hole section.
Further, sounding rod comprises the first bar section and the second bar section that sets gradually, the internal diameter of the external diameter of the first bar section and the second hole section is suitable, the first bar section is arranged in receiving opening, the end that the first bar section deviates from the second bar section is formed with conical surface section, the external diameter of the second bar section is less than the external diameter of the first bar section, and the second bar section extends to the outside of receiving opening from the second end of measuring tube.
Further, the second end of measuring tube has the backstop flange that radially extends internally, and the backstop flange has endoporus, and the diameter of endoporus is less than the external diameter of the first bar section and greater than the external diameter of the second bar section.
Further, the second bar section end of deviating from the first bar section is provided with lever.
Use the technical solution of the utility model, gauge for detection of heat exchanger tube and tube plate expanded-connecting result, comprise: measuring tube, has the receiving opening that in axial direction extends, the first end of measuring tube is formed with the elasticity pressing structure that changes the measuring tube external diameter, receiving opening comprises the first hole section and the second hole section that extends to the second end of measuring tube of the first end that is positioned at measuring tube, and the first hole section has the taper hole wall, and the internal diameter of the first hole section reduces gradually towards the first end of measuring tube; Sounding rod, the first end of sounding rod are arranged in receiving opening movably, and the second end of sounding rod is positioned at the receiving opening outside, and the first end of sounding rod has the conical surface section suitable with the first hole section; Sounding rod has the first mark position and the second mark position, and the first mark position and the second mark position correspond respectively to minimum value and the maximal value that meets standard code after heat exchanger tube and tube plate expanded-connecting.first the first end of sounding rod is pulled to the second end of measuring tube during use, then press the compression elasticity pressing structure, the first end of measuring tube is inserted in heat exchanger tube, this moment, the first end with sounding rod pushed away left, press the length that sounding rod advances, judge the degree of heat exchanger tube and tube plate expanded-connecting, can judge that heat exchanger tube and tube plate expanded-connecting are as qualified when advancing length in sounding rod sign scope, otherwise be defective, sounding rod has the first mark position and the second mark position, it is the minimum value that meets standard code after heat exchanger tube and tube plate expanded-connecting when sounding rod is positioned at the first mark position, when being positioned at the second mark position, sounding rod meets the maximal value of standard code after heat exchanger tube and described tube plate expanded-connecting.And set the sign scope between first mark position and the second mark position of sounding rod, like this, sounding rod advance as interior in measuring tube after, if all be judged as between the first mark position and the second mark position qualified.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of the gauge for detection of heat exchanger tube and tube plate expanded-connecting result of the present utility model; And
Fig. 2 shows the schematic side view for detection of the elasticity pressing structure of the gauge of heat exchanger tube and tube plate expanded-connecting result of Fig. 1.
Above accompanying drawing comprises the following drawings mark:
10, measuring tube; 20, sounding rod; 31, heat exchanger tube; 32, tube sheet; 11, elasticity pressing structure; 12, press section; 13, receiving opening; 131, the first hole section; 132, the second hole section; 21, the first bar section; 22, the second bar section; 14, backstop flange; 40, lever.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
the utility model provides a kind of embodiment of the gauge for detection of heat exchanger tube and tube plate expanded-connecting result, specifically referring to Fig. 1 and Fig. 2, the gauge of the present embodiment comprises measuring tube 10 and sounding rod 20, measuring tube 10 has the receiving opening 13 that in axial direction extends, the first end of measuring tube 10 is formed with the elasticity pressing structure 11 that changes measuring tube 10 external diameters, receiving opening 13 comprises the first hole section 131 of the first end that is positioned at measuring tube 10 and extends to the second hole section 132 of the second end of measuring tube 10, the first hole section 131 has the taper hole wall, the internal diameter of the first hole section 131 reduces gradually towards the first end of measuring tube 10, the first end of sounding rod 20 is arranged in receiving opening 13 movably, the second end of sounding rod 20 is positioned at receiving opening 13 outsides, the first end of sounding rod 20 has the conical surface section suitable with the first hole section 131, sounding rod 20 has the first mark position and the second mark position, it is the minimum value that meets standard code after heat exchanger tube 31 and tube sheet 32 expanded joints when sounding rod 20 is positioned at the first mark position, when being positioned at the second mark position, sounding rod 20 meets the maximal value of standard code after heat exchanger tube 31 and tube sheet 32 expanded joints.
The present embodiment further preferably, as shown in Figure 2, elasticity pressing structure 11 comprises a plurality of press sections 12, a plurality of press sections 12 circumferentially evenly distribute along measuring tube 10, have the gap between two press sections 12, the inwall of a plurality of press sections 12 forms the first hole section 131.
First the first end of sounding rod is pulled to the second end of measuring tube during use, then press the compression elasticity pressing structure, the first end of measuring tube is inserted in heat exchanger tube, this moment, the first end with sounding rod pushed away left, press the length that sounding rod advances, judge the degree of heat exchanger tube and tube plate expanded-connecting, can judge heat exchanger tube and tube plate expanded-connecting as qualified when advancing length in sounding rod sign scope, otherwise be defective.Sounding rod 20 has the first mark position and the second mark position, be the minimum value that meets standard code after heat exchanger tube 31 and tube sheet 32 expanded joints when sounding rod 20 is positioned at the first mark position, meet the maximal value of standard code when sounding rod 20 is positioned at the second mark position after heat exchanger tube 31 and tube sheet 32 expanded joints.And set the sign scope between first mark position and the second mark position of sounding rod, like this, sounding rod advance as interior in measuring tube after, if all be judged as between the first mark position and the second mark position qualified.The external diameter of the first end of measuring tube 10 is the minimum value that meet standard code after heat exchanger tube 31 and tube sheet 32 expanded joints, and the first end wall thickness dimension sum of the outside dimension of the first end of sounding rod 20 and measuring tube 10 is the maximal values that meet standard code after heat exchanger tube 31 and tube sheet 32 expanded joints.The sign scope of measuring can judge according to the length that sounding rod is positioned at the receiving opening outside.That is, when the first end of sounding rod was inserted into the first end of measuring tube, sounding rod was positioned at the first mark position, and sounding rod is positioned at the marked position of the first mark position of receiving opening outside; When sounding rod was positioned at the second mark position, sounding rod was positioned at the marked position of the second mark position of receiving opening outside.Sounding rod is stone between the marked position in the marked position of the first mark position and the second mark position, shows that the first end wall thickness dimension sum of the outside dimension of first end of sounding rod and measuring tube is between the maximal value that meets standard code and minimum value at this moment; If sounding rod is positioned at the length of receiving opening outside outside the sign scope, the first end that represents sounding rod is not inserted into the first end of measuring tube or the first end that first end has passed measuring tube fully, and the first end wall thickness dimension sum that shows the outside dimension of sounding rod and measuring tube this moment is less than the minimum value that meets standard code or the maximal value of standard code greater-than match.
The gauge of the present embodiment has the characteristics such as simple in structure, novel, practical, safe and reliable, after solution shell-and-tube heat exchanger heat exchanger tube and tube plate expanded-connecting that can be successful, the expanded joint result difficult problem whether qualified inspection is measured, gauge can detect in real time heat exchanger tube and whether tube plate expanded-connecting is qualified, effectively guaranteed the quality of expanding joint process, the control of heat exchanger tube in the shell-and-tube heat exchanger manufacture process and tube plate expanded-connecting quality has been played a positive role.
The gauge of the present embodiment can be made plurality of specifications by the difference of heat exchanger tube specification, and in petrochemical complex, coal liquefaction chemical plant installations heat interchanger used, the most frequently used heat exchanger tube specification is Φ 19 * 2 and Φ 25 * 2.5 two kind.T8 or T8A tool steel are selected in measuring tube in gauge and the manufacturing of sounding rod, and the 20# Fine Steel Casting iron is selected in the manufacturing of lever.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the gauge for detection of heat exchanger tube and tube plate expanded-connecting result, is characterized in that, comprising:
Measuring tube (10), has the receiving opening (13) that in axial direction extends, the first end of described measuring tube (10) is formed with the elasticity pressing structure (11) that changes described measuring tube (10) external diameter, described receiving opening (13) comprises the first hole section (131) of the first end that is positioned at described measuring tube (10) and extends to the second hole section (132) of the second end of described measuring tube (10), described the first hole section (131) has the taper hole wall, and the internal diameter of described the first hole section (131) reduces gradually towards the first end of described measuring tube (10);
Sounding rod (20), the first end of described sounding rod (20) is arranged in described receiving opening (13) movably, the second end of described sounding rod (20) is positioned at described receiving opening (13) outside, and the first end of described sounding rod (20) has the conical surface section suitable with described the first hole section (131);
Described sounding rod (20) has the first mark position and the second mark position, and described the first mark position and the second mark position correspond respectively to minimum value and the maximal value that meets standard code after described heat exchanger tube (31) and described tube sheet (32) expanded joint.
2. gauge according to claim 1, it is characterized in that, described elasticity pressing structure (11) comprises a plurality of press sections (12), a plurality of described press sections (12) circumferentially evenly distribute along described measuring tube (10), have the gap between two described press sections (12), the inwall of a plurality of described press sections (12) forms described the first hole section (131).
3. gauge according to claim 2, it is characterized in that, described sounding rod (20) comprises the first bar section (21) and the second bar section (22) that sets gradually, the internal diameter of the external diameter of described the first bar section (21) and described the second hole section (132) is suitable, described the first bar section (21) is arranged in described receiving opening (13), the end that described the first bar section (21) deviates from described the second bar section (22) is formed with described conical surface section, the external diameter of described the second bar section (22) is less than the external diameter of described the first bar section (21), described the second bar section (22) extends to the outside of described receiving opening (13) from the second end of described measuring tube (10).
4. gauge according to claim 3, it is characterized in that, the second end of described measuring tube (10) has the backstop flange (14) that radially extends internally, described backstop flange (14) has endoporus, and the diameter of described endoporus is less than the external diameter of described the first bar section (21) and greater than the external diameter of described the second bar section (22).
5. gauge according to claim 3, is characterized in that, the end that described the second bar section (22) deviates from described the first bar section (21) is provided with lever (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287225 CN203274610U (en) | 2013-05-23 | 2013-05-23 | Measure gauge for detecting expanding-joint result of heat-exchange tube and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320287225 CN203274610U (en) | 2013-05-23 | 2013-05-23 | Measure gauge for detecting expanding-joint result of heat-exchange tube and tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274610U true CN203274610U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320287225 Expired - Lifetime CN203274610U (en) | 2013-05-23 | 2013-05-23 | Measure gauge for detecting expanding-joint result of heat-exchange tube and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228612A (en) * | 2017-07-06 | 2017-10-03 | 南京康尼精密机械有限公司 | A kind of workpiece hole depth cubing |
-
2013
- 2013-05-23 CN CN 201320287225 patent/CN203274610U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228612A (en) * | 2017-07-06 | 2017-10-03 | 南京康尼精密机械有限公司 | A kind of workpiece hole depth cubing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |