CN105042239B - Heat exchanger tube pressure testing inner intumescence type snap joint - Google Patents
Heat exchanger tube pressure testing inner intumescence type snap joint Download PDFInfo
- Publication number
- CN105042239B CN105042239B CN201510499978.1A CN201510499978A CN105042239B CN 105042239 B CN105042239 B CN 105042239B CN 201510499978 A CN201510499978 A CN 201510499978A CN 105042239 B CN105042239 B CN 105042239B
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- China
- Prior art keywords
- pull bar
- cone
- heat exchanger
- pressure testing
- exchanger tube
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 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 abstract description 21
- 230000007306 turnover Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241001149930 Protura <class> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect 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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of heat exchanger tube pressure testing inner intumescence type snap joint, the joint includes sealing pedestal（5）, the sealing pedestal（5）On wear and be connected to cone pull bar（1）, the cone pull bar（1）The end outer rim of one end is set to cone structure, and external screw thread is provided with the outer wall of the other end；The cone pull bar（1）It is provided with one end of cone structure and is set with interior expansion tube（2）, the interior expansion tube（2）Tube wall on be provided with a plurality of grooving, the cone pull bar along its length（1）It is provided with rotation on externally threaded one end and is equipped with tightening nut（6）.The present invention relates to a kind of heat exchanger tube pressure testing inner intumescence type snap joint, efficient and convenient, easily operated and good sealing effect, pressure-bearing are connected high.
Description
Technical field
The present invention relates to a kind of snap joint, more particularly, to a kind of for trying the heat exchanger tube on high-performance heat exchanger
The inner intumescence type snap joint of pressure, belongs to heat exchanger tube leak detection technical field.
Background technology
With the continuous improvement of modern science and technology level, the efficient specification around heat exchange of heat pipe of plant produced is also continuous
Expand, can produce at present to 2 ~ 3 Wan ㎡/platform, the reachable tens million of units of value, as the heat exchange of one of the main part of heat exchanger
Pipe is also the most key part of heat exchanger quality, to ensure the quality of heat exchanger, it is necessary to which the seepage property for exchanging heat pipe is carried out
100% detection.Conventional detection method is that heat exchanger tube is welded with pressure testing air inlet pipe at present, treats to be carried out again after the completion of pressure testing
Excision, the welding and excision of every heat exchanger tube about need 10 minutes even more long, and also need corresponding auxiliary material, and now big
The heat exchanger tube of type heat exchanger may have thousands of even up to ten thousand, such as still carry out pressure testing detection with the method, it will consumption is a large amount of
Artificial, time and auxiliary material, and can largely extend production cycle of heat exchanger, influence the friendship phase.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of heat exchanger tube pressure testing inner intumescence type snap joint；Should
Efficient and convenient, the easily operated and good sealing effect of joint connection, pressure-bearing are high, and the set-up time of each joint is less than one point when using
Clock, improves operating efficiency, is that the manufacture of heat exchanger saves substantial amounts of artificial, time and auxiliary material.
The object of the present invention is achieved like this：
A kind of heat exchanger tube pressure testing inner intumescence type snap joint, the joint includes sealing pedestal, the sealing pedestal
On wear and be connected to cone pull bar, the end outer rim of described cone pull bar one end is set to cone structure, is set on the outer wall of the other end
There is external screw thread；The cone pull bar is provided with one end of cone structure and is set with interior expansion tube, the tube wall of the interior expansion tube
On be provided with a plurality of grooving along its length, the cone pull bar is provided with rotation on externally threaded one end and is equipped with tightening nut.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, is provided with stepped hole, institute on the sealing pedestal
Planar seal ring, the small-bore end of the stepped hole of the sealing pedestal are equipped with the large aperture end of the stepped hole for stating sealing pedestal
Inner hole wall on be equipped with internal diameter O-ring seal, cone pull bar is inserted in the small-bore endoporus of the stepped hole of sealing pedestal.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, the cone pull bar is provided with externally threaded end
Upper rotation is equipped with clamp nut, and the inner bolt hole of clamp nut is a stepped hole, has an air inlet pipe to be placed in the small-bore of clamp nut
In through hole, and the outside turnover in end of air inlet pipe has a circle flange, and flange is located at the step surface and cone of clamp nut stepped hole
Between the end face of body tie rod end.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, is equipped with the end face of the cone tie rod end
Plane O-ring seal.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, the cone pull bar and internal diameter O-ring seal it
Between be negative clearance coordinate.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, the taper of cone pull bar one end cone structure
It it is 10 °, the length of cone structure is 5mm.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, has one along interior expansion length of tube in a plurality of grooving
Its tube wall is run through in direction.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, in addition to the grooving through interior expansion tube wall, its
The bottom land of cotangent groove is 5 ~ 7mm apart from the end of interior expansion tube.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, between the cooperation between cone pull bar and interior expansion tube
Gap is 0.1 ~ 0.2mm；Fit clearance between interior expansion tube and heat exchanger tube is 0.2 ~ 0.3mm.
A kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, cone pull bar and the quenched treatment of interior expansion tube,
Its hardness is HRC42.
Compared with prior art, the beneficial effects of the invention are as follows：
1）It is applicable pressure high：The pressure of 4.0MPa can be born, most pipe heat exchanger pressure testing detection needs can be met；
2）Low-profile：Aim at the joint that the heat exchanger pressure testing detection of small pipe bridge is designed；
3）Sensitivity is high：Joint using being rigidly connected, will not deform when pressure is born, and improve the spirit of pressure testing experiment
Sensitivity；
4）Easy for installation, speed is fast：The interior expansion tube portion of the joint that will need to have only been assembled during experiment puts in heat exchanger tube
Tightening nut is tightened after road planar sealing pad, rectification process is not required to one minute；
5）Sealing strengthens：The unique design that the cone pull bar and interior expansion tube of joint are sealed using two roads, sealing property
More preferably, leakage is not produced, and reliability is high, it is few to damage.
Brief description of the drawings
Fig. 1 is a kind of structural representation of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 2 is a kind of structural representation of the cone pull bar of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 3 is a kind of structural representation of the interior expansion tube of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 4 is a kind of side view of the interior expansion tube of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 5 is a kind of structural representation of the sealing pedestal of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 6 is a kind of structural representation of the clamp nut of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Fig. 7 is a kind of side view of the clamp nut of heat exchanger tube pressure testing inner intumescence type snap joint of the invention.
Wherein：
It is cone pull bar 1, interior expansion tube 2, planar seal ring 3, internal diameter O-ring seal 4, sealing pedestal 5, tightening nut 6, flat
Face O-ring seal 7, clamp nut 8, air inlet pipe 9, heat exchanger tube 10.
Specific embodiment
Referring to Fig. 1 ~ 7, a kind of heat exchanger tube pressure testing inner intumescence type snap joint of the present invention, the joint includes
Sealing pedestal 5, stepped hole is provided with the sealing pedestal 5, is equipped with the large aperture end of the stepped hole of the sealing pedestal 5
Planar seal ring 3, internal diameter O-ring seal 4 is equipped with the inner hole wall at the small-bore end of the stepped hole of the sealing pedestal 5；
Cone pull bar 1 is plugged with the small-bore endoporus of the stepped hole of the sealing pedestal 5, in the cone pull bar 1
The heart is provided with passage along its length, for negative clearance coordinates between the cone pull bar 1 and internal diameter O-ring seal 4, the cone
The end outer rim of the one end of body pull bar 1 is set to cone structure, and external screw thread is provided with the outer wall of the other end；Preferably, the cone
The taper of one end cone structure of body pull bar 1 is 10 °, and the length of cone structure is 5mm；
The cone pull bar 1 is provided with one end of cone structure and is set with interior expansion tube 2, the pipe of the interior expansion tube 2
A plurality of grooving is provided with wall along its length, it is preferred that there is one to run through along the length direction of interior expansion tube 2 in a plurality of grooving
Its tube wall, the bottom land of remaining grooving is matching somebody with somebody between 5 ~ 7mm, and interior expansion tube 2 and heat exchanger tube 10 apart from the end of interior expansion tube 2
Conjunction gap is 0.2 ~ 0.3mm（Preferably, using 0.3mm）；The fit clearance between cone pull bar 1 and interior expansion tube 2 is simultaneously
0.1~0.2mm（Preferably, using 0.1）；And cone pull bar 1 and interior expansion tube 2 need to carry out Quenching Treatment, its hardness typically exists
HRC42 or so；
The cone pull bar 1 is provided with rotation on externally threaded one end and is equipped with tightening nut 6, and cone pull bar 1 is provided with outward
Rotation is equipped with clamp nut 8 on the end of screw thread, and the inner bolt hole of clamp nut 8 is a stepped hole, has an air inlet pipe 9 to be placed in compression
In the small-bore through hole of nut 8, and the outside turnover in end of air inlet pipe 9 has a circle flange, and flange is located at the step of clamp nut 8
Between the step surface in hole and the end face of the end of cone pull bar 1；It is O-shaped close plane to be equipped with the end face of the end of cone pull bar 1
Seal 7, so as to play sealing function；
When using, by cone pull bar 1 in one end insertion heat exchanger tube 10 with conehead structure, tightening nut 6 is then screwed,
So that the end face of heat exchanger tube 10 is pressed together on planar seal ring 3, and by interior expansion tube 2 and the cone of the end of cone pull bar 1
Body structure further improves sealing property；Then pressure test is carried out by being passed through gases at high pressure by air inlet pipe 9；
In addition：It should be noted that above-mentioned specific embodiment is only a prioritization scheme of this patent, the skill of this area
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent.
Claims (7)
1. a kind of heat exchanger tube pressure testing inner intumescence type snap joint, it is characterised in that：The joint includes sealing pedestal（5）,
The sealing pedestal（5）On wear and be connected to cone pull bar（1）, the cone pull bar（1）The end outer rim of one end is set to cone knot
Structure, external screw thread is provided with the outer wall of the other end；The cone pull bar（1）It is provided with one end of cone structure in being set with
Expansion tube（2）, the interior expansion tube（2）Tube wall on be provided with a plurality of grooving, the cone pull bar along its length（1）
It is provided with rotation on externally threaded one end and is equipped with tightening nut（6）；
The sealing pedestal（5）On be provided with stepped hole, the sealing pedestal（5）Stepped hole large aperture end in be equipped with it is flat
Face sealing ring（3）, the sealing pedestal（5）Stepped hole small-bore end inner hole wall on be equipped with internal diameter O-ring seal
（4）, cone pull bar（1）It is inserted in sealing pedestal（5）Stepped hole small-bore endoporus in；The cone pull bar（1）It is provided with
Rotation is equipped with clamp nut on externally threaded end（8）, and clamp nut（8）Inner bolt hole be a stepped hole, have an air inlet pipe（9）
It is placed in clamp nut（8）Small-bore through hole in, and air inlet pipe（9）Outwards turnover has a circle flange for end, and flange is located at
Clamp nut（8）The step surface of stepped hole and cone pull bar（1）Between the end face of end；The cone pull bar（1）The end of end
Plane O-ring seal is equipped with face（7）.
2. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 1, it is characterised in that：The cone pull bar
（1）With internal diameter O-ring seal（4）Between be negative clearance coordinate.
3. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 1, it is characterised in that：The cone pull bar
（1）The taper of one end cone structure is 10 °, and the length of cone structure is 5mm.
4. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 1, it is characterised in that：Have in a plurality of grooving
One along interior expansion tube（2）Length direction runs through its tube wall.
5. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 4, it is characterised in that：Except through interior expansion
Pipe（2）Outside the grooving of tube wall, the bottom land of remaining grooving is apart from interior expansion tube（2）End be 5 ~ 7mm.
6. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 1, it is characterised in that：Cone pull bar（1）
With interior expansion tube（2）Between fit clearance be 0.1 ~ 0.2mm；Interior expansion tube（2）With heat exchanger tube（10）Between fit clearance
It is 0.2 ~ 0.3mm.
7. a kind of heat exchanger tube pressure testing inner intumescence type snap joint as claimed in claim 1, it is characterised in that：Cone pull bar（1）
With interior expansion tube（2）Quenched treatment, 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 CN105042239A (en) | 2015-11-11 |
| CN105042239B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108202301B (en) * | 2016-12-16 | 2020-03-27 | 上海梅山钢铁股份有限公司 | Online quick replacement device and replacement method for quick-wear parts in 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042239A (en) | 2015-11-11 |
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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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| TR01 | Transfer of patent right | ||
| 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. |