CN105042239A - Internal expansion type quick coupling for heat exchange tube pressure test - Google Patents
Internal expansion type quick coupling for heat exchange tube pressure test Download PDFInfo
- Publication number
- CN105042239A CN105042239A CN201510499978.1A CN201510499978A CN105042239A CN 105042239 A CN105042239 A CN 105042239A CN 201510499978 A CN201510499978 A CN 201510499978A CN 105042239 A CN105042239 A CN 105042239A
- Authority
- CN
- China
- Prior art keywords
- pull bar
- heat exchanging
- cone
- pressure testing
- pipe joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 230000008878 coupling Effects 0.000 title abstract 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 22
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001149930 Protura <class> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to an internal expansion type quick coupling for a heat exchange tube pressure test. The coupling comprises a sealing base body (5). A cone pull rod (1) is connected to the sealing base body (5) in a penetrating manner. The outer edge of one end of the cone pull rod (1) is arranged to be of a cone structure. An external thread is arranged on the outer wall of the other end of the cone pull rod (1). The end, of the cone structure, of the cone pull rod (1) is sleeved with an internal expansion tube (2). A plurality of cutting grooves are formed in the wall of the internal expansion tube (2) in the length direction of the internal expansion tube (2). The end, with the external thread, of the cone pull rod (1) is provided with a tightening nut (6) in a screwed manner. The internal expansion type quick coupling for the heat exchange tube pressure test achieves connection rapidly and conveniently, and is easy to operate, good in sealing effect and high in borne pressure.
Description
Technical field
The present invention relates to a kind of rapid pipe joint, especially relate to a kind of inner intumescence type rapid pipe joint for carrying out pressure testing to the heat exchanging tube on high-performance heat exchanger, belong to heat exchanging tube leak detection technical field.
Background technique
Along with improving constantly of modern science and technology level, the efficient specification around heat exchange of heat pipe of plant produced is also in continuous expansion, 2 ~ 3 Wan ㎡/platforms can be produced at present, value can reach tens million of unit, heat exchanging tube as one of the main part of heat exchanger is also the most key parts of heat exchanger quality, for ensureing the quality of heat exchanger, the seepage property must exchanging heat pipe carries out 100% detection.The detecting method of current routine is welded with pressure testing suction tude by heat exchanging tube, excise again after pressure testing completes, the welding of every root heat exchanging tube and excision approximately need 10 minutes even more of a specified duration, and also need corresponding auxiliary material, and now the heat exchanging tube of large heat exchanger may have thousands of or even up to ten thousand, as still carried out pressure testing detection by the method, a large amount of artificial, time and auxiliary material will be consumed, and largely can extend the manufacture cycle of heat exchanger, affect the friendship phase.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the rapid pipe joint of a kind of heat exchanging tube pressure testing inner intumescence type is provided; This joint connect efficient and convenient, be easy to operation and good sealing effect, pressure-bearing are high, during use, the installation time of each joint was less than one minute, improve working efficiency, and the manufacture for heat exchanger saves a large amount of artificial, time and auxiliary material.
The object of the present invention is achieved like this:
A kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint, described joint includes sealing pedestal, and on described sealing pedestal, cross-under has cone pull bar, and the end outer rim of described cone pull bar one end is set to cone structure, and the outer wall of the other end is provided with outside thread; One end that described cone pull bar is provided with cone structure is set with interior expansion tube, the tube wall of described interior expansion tube is provided with many groovings along its length, described cone pull bar is provided with externally threaded one end revolves and is equipped with tightening nut.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, described sealing pedestal is provided with step hole, planar seal ring is equipped with in the large aperture end of the step hole of described sealing pedestal, the inner hole wall of the small aperture end of the step hole of described sealing pedestal is equipped with internal diameter O RunddichtringO, cone pull bar is inserted in the small aperture endoporus of the step hole of sealing pedestal.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, described cone pull bar is provided with externally threaded end revolves and is equipped with gland nut, and the inner bolt hole of gland nut is a step hole, a suction tude is had to be placed in the small aperture through hole of gland nut, and the end of suction tude has outwards turned down a circle flange, and flange is between the step surface and the end face of cone tie rod end of gland nut step hole.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, the end face of described cone tie rod end is equipped with plane O RunddichtringO.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, for negative clearance coordinates between described cone pull bar with internal diameter O RunddichtringO.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, the tapering of described cone pull bar one end cone structure is 10 °, and the length of cone structure is 5mm.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, has one to run through its tube wall along interior expansion tube length direction in many groovings.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, except running through the grooving of interior expansion tube tube wall, the bottom land of all the other groovings is 5 ~ 7mm apart from the end of interior expansion tube.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, the matching gap between cone pull bar and interior expansion tube is 0.1 ~ 0.2mm; Matching gap between interior expansion tube and heat exchanging tube is 0.2 ~ 0.3mm.
A kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint, cone pull bar and interior expansion tube are through Quenching Treatment, and its hardness is HRC42.
Compared with prior art, the invention has the beneficial effects as follows:
1) be suitable for pressure high: the pressure that can bear 4.0MPa, most tubular heat exchanger pressure testing can be met and detect needs;
2) low-profile: the heat exchanger pressure testing aiming at little pipe bridge detects the joint carrying out designing;
3) highly sensitive: joint all adopts and is rigidly connected, can not be out of shape when bearing pressure, improve the sensitivity of pressure testing test;
4) easy for installation, speed is fast: only expansion tube part in the joint assembled need be tightened tightening nut after putting in heat exchange pipeline planar sealing pad during test, rectification process does not need one minute;
5) sealing strengthens: the cone pull bar of joint and interior expansion tube adopt the unique design of two road sealings, and sealability is better, and do not produce leakage, reliability is high, seldom damages.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint.
Fig. 2 is the structural representation of the cone pull bar of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint.
Fig. 3 is the structural representation of expansion tube in the rapid pipe joint of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type.
Fig. 4 is the side view of expansion tube in the rapid pipe joint of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type.
Fig. 5 is the structural representation of the sealing pedestal of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint.
Fig. 6 is the structural representation of the gland nut of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint.
Fig. 7 is the side view of the gland nut of a kind of heat exchanging tube pressure testing of the present invention inner intumescence type rapid pipe joint.
Wherein:
Cone pull bar 1, interior expansion tube 2, planar seal ring 3, internal diameter O RunddichtringO 4, sealing pedestal 5, tightening nut 6, plane O RunddichtringO 7, gland nut 8, suction tude 9, heat exchanging tube 10.
Embodiment
See Fig. 1 ~ 7, a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint that the present invention relates to, described joint includes sealing pedestal 5, described sealing pedestal 5 is provided with step hole, be equipped with planar seal ring 3 in the large aperture end of the step hole of described sealing pedestal 5, the inner hole wall of the small aperture end of the step hole of described sealing pedestal 5 be equipped with internal diameter O RunddichtringO 4;
Cone pull bar 1 is plugged with in the small aperture endoporus of the step hole of described sealing pedestal 5, the center of described cone pull bar 1 is provided with vent along its length, for negative clearance coordinates between this cone pull bar 1 with internal diameter O RunddichtringO 4, the end outer rim of described cone pull bar 1 one end is set to cone structure, and the outer wall of the other end is provided with outside thread; Preferably, the tapering of described cone pull bar 1 one end cone structure is 10 °, and the length of cone structure is 5mm;
One end that described cone pull bar 1 is provided with cone structure is set with interior expansion tube 2, the tube wall of described interior expansion tube 2 is provided with many groovings along its length, preferably, one is had to run through its tube wall along interior expansion tube 2 length direction in many groovings, the bottom land of all the other groovings is 5 ~ 7mm apart from the end of interior expansion tube 2, and the matching gap between interior expansion tube 2 and heat exchanging tube 10 to be 0.2 ~ 0.3mm(preferred, adopt 0.3mm); Matching gap simultaneously between cone pull bar 1 and interior expansion tube 2 is that 0.1 ~ 0.2mm(is preferred, adopts 0.1); And cone pull bar 1 and interior expansion tube 2 need carry out Quenching Treatment, its hardness is generally at about HRC42;
Described cone pull bar 1 is provided with externally threaded one end revolves and is equipped with tightening nut 6, and cone pull bar 1 is provided with externally threaded end revolves and is equipped with gland nut 8, and the inner bolt hole of gland nut 8 is a step hole, a suction tude 9 is had to be placed in the small aperture through hole of gland nut 8, and the end of suction tude 9 has outwards turned down a circle flange, and flange is between the step surface and the end face of cone pull bar 1 end of gland nut 8 step hole; The end face of described cone pull bar 1 end is equipped with plane O RunddichtringO 7, thus plays seal action;
During use, cone pull bar 1 is inserted in heat exchanging tube 10 with one end of conehead structure, then screw tightening nut 6, thus the end face of heat exchanging tube 10 is pressed together on planar seal ring 3, and improve sealability further by the cone structure of interior expansion tube 2 and cone pull bar 1 end; Then pass into pressurized gas by suction tude 9 and can carry out pressure test;
In addition: it should be noted that above-mentioned embodiment is only an optimized project of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection domain of this patent.
Claims (10)
1. a heat exchanging tube pressure testing inner intumescence type rapid pipe joint, it is characterized in that: described joint includes sealing pedestal (5), the upper cross-under of described sealing pedestal (5) has cone pull bar (1), the end outer rim of described cone pull bar (1) one end is set to cone structure, and the outer wall of the other end is provided with outside thread; One end that described cone pull bar (1) is provided with cone structure is set with interior expansion tube (2), the tube wall of described interior expansion tube (2) is provided with many groovings along its length, and described cone pull bar (1) is provided with externally threaded one end revolves and is equipped with tightening nut (6).
2. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1, it is characterized in that: described sealing pedestal (5) is provided with step hole, planar seal ring (3) is equipped with in the large aperture end of the step hole of described sealing pedestal (5), the inner hole wall of the small aperture end of the step hole of described sealing pedestal (5) is equipped with internal diameter O RunddichtringO (4), and cone pull bar (1) is inserted in the small aperture endoporus of the step hole of sealing pedestal (5).
3. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1 or 2, it is characterized in that: described cone pull bar (1) is provided with externally threaded end revolves and is equipped with gland nut (8), and the inner bolt hole of gland nut (8) is a step hole, a suction tude (9) is had to be placed in the small aperture through hole of gland nut (8), and the end of suction tude (9) has outwards turned down a circle flange, and flange is positioned between the step surface of gland nut (8) step hole and the end face of cone pull bar (1) end.
4. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 3, is characterized in that: the end face of described cone pull bar (1) end is equipped with plane O RunddichtringO (7).
5. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 2, is characterized in that: described cone pull bar (1) with between internal diameter O RunddichtringO (4) for negative clearance coordinates.
6. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1, is characterized in that: the tapering of described cone pull bar (1) one end cone structure is 10 °, and the length of cone structure is 5mm.
7. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1, is characterized in that: have one to run through its tube wall along interior expansion tube (2) length direction in many groovings.
8. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 7, is characterized in that: except running through the grooving of interior expansion tube (2) tube wall, and the bottom land of all the other groovings is 5 ~ 7mm apart from the end of interior expansion tube (2).
9. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1, is characterized in that: the matching gap between cone pull bar (1) and interior expansion tube (2) is 0.1 ~ 0.2mm; Matching gap between interior expansion tube (2) and heat exchanging tube (10) is 0.2 ~ 0.3mm.
10. a kind of heat exchanging tube pressure testing inner intumescence type rapid pipe joint as claimed in claim 1, is characterized in that: cone pull bar (1) and interior expansion tube (2) are through Quenching Treatment, and its hardness is HRC42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499978.1A CN105042239B (en) | 2015-08-15 | 2015-08-15 | Heat exchanger tube pressure testing inner intumescence type snap joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499978.1A CN105042239B (en) | 2015-08-15 | 2015-08-15 | Heat exchanger tube pressure testing inner intumescence type snap joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042239A true CN105042239A (en) | 2015-11-11 |
| CN105042239B CN105042239B (en) | 2017-05-31 |
Family
ID=54449038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510499978.1A Active CN105042239B (en) | 2015-08-15 | 2015-08-15 | Heat exchanger tube pressure testing inner intumescence type snap joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042239B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697494A (en) * | 2016-04-27 | 2016-06-22 | 中国兵器装备集团摩托车检测技术研究所 | Expansion-type adapter used for mounting lever-type sensor on pressure vessel |
| CN108202301A (en) * | 2016-12-16 | 2018-06-26 | 上海梅山钢铁股份有限公司 | The fast online replacement device and replacing options of vulnerable part in a kind of spray beam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708098A (en) * | 1968-07-01 | 1973-01-02 | Waagner Biro Ag | Assembly for plugging heat exchanger tubes |
| CN201177106Y (en) * | 2008-04-10 | 2009-01-07 | 曹忠泉 | Expander roll device |
| CN203592448U (en) * | 2013-09-26 | 2014-05-14 | 上海锅炉厂有限公司 | Guiding device for tube-plate type blind wring heat exchanger |
| CN204330474U (en) * | 2014-12-15 | 2015-05-13 | 西安航天动力机械厂 | A kind of heat exchanger tube hydraulic sealing device |
| CN204922315U (en) * | 2015-08-15 | 2015-12-30 | 江阴金童石化装备有限公司 | Heat exchange tube pressure testing is with interior inflation formula quick -operation joint |
-
2015
- 2015-08-15 CN CN201510499978.1A patent/CN105042239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708098A (en) * | 1968-07-01 | 1973-01-02 | Waagner Biro Ag | Assembly for plugging heat exchanger tubes |
| CN201177106Y (en) * | 2008-04-10 | 2009-01-07 | 曹忠泉 | Expander roll device |
| CN203592448U (en) * | 2013-09-26 | 2014-05-14 | 上海锅炉厂有限公司 | Guiding device for tube-plate type blind wring heat exchanger |
| CN204330474U (en) * | 2014-12-15 | 2015-05-13 | 西安航天动力机械厂 | A kind of heat exchanger tube hydraulic sealing device |
| CN204922315U (en) * | 2015-08-15 | 2015-12-30 | 江阴金童石化装备有限公司 | Heat exchange tube pressure testing is with interior inflation formula quick -operation joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697494A (en) * | 2016-04-27 | 2016-06-22 | 中国兵器装备集团摩托车检测技术研究所 | Expansion-type adapter used for mounting lever-type sensor on pressure vessel |
| CN105697494B (en) * | 2016-04-27 | 2018-05-11 | 中检西部检测有限公司 | For the expansion type crossover sub being installed on rod-type sensor on pressure vessel |
| CN108202301A (en) * | 2016-12-16 | 2018-06-26 | 上海梅山钢铁股份有限公司 | The fast online replacement device and replacing options of vulnerable part in a kind of spray beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042239B (en) | 2017-05-31 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 214434, 73, Cheng Zhang Road, Jiangyin City, Jiangsu, Wuxi Co-patentee after: Jiangyin Jintong Heavy Machinery Manufacturing Co.,Ltd. Patentee after: JIANGYIN JINTONG PETROCHEMICAL EQUIPMENT CO.,LTD. Address before: 214434, 73, Cheng Zhang Road, Jiangyin City, Jiangsu, Wuxi Co-patentee before: Jiangsu Jintong Heavy Machinery Manufacturing Co.,Ltd. Patentee before: JIANGYIN JINTONG PETROCHEMICAL EQUIPMENT CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240124 Address after: 214437 no.973, Changjiang Road, Jiangyin hi tech Zone, Wuxi City, Jiangsu Province Patentee after: JIANGYIN JINTONG PETROCHEMICAL EQUIPMENT CO.,LTD. Country or region after: China Address before: No. 73 Chengzhang Road, Jiangyin City, Wuxi City, Jiangsu Province, 214434 Patentee before: JIANGYIN JINTONG PETROCHEMICAL EQUIPMENT CO.,LTD. Country or region before: China Patentee before: Jiangyin Jintong Heavy Machinery Manufacturing Co.,Ltd. |
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| TR01 | Transfer of patent right |