CN104197142A - Method for prestretching heat pipeline compensator - Google Patents
Method for prestretching heat pipeline compensator Download PDFInfo
- Publication number
- CN104197142A CN104197142A CN201410499231.1A CN201410499231A CN104197142A CN 104197142 A CN104197142 A CN 104197142A CN 201410499231 A CN201410499231 A CN 201410499231A CN 104197142 A CN104197142 A CN 104197142A
- Authority
- CN
- China
- Prior art keywords
- jack
- heating pipeline
- pipeline compensator
- compensator
- arms
- 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
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a method for prestretching a heat pipeline compensator. The method comprises the following steps: taking two lifting jacks; welding a supporting rod on an ejector rod of each of the two lifting jacks; taking two tile blocks; welding one circular arc-shaped block at the other end of each of the supporting rod; enabling the bottoms of the two welded lifting jacks to be back to and in contact with each other, and putting the lifting jacks between two arms of the heat pipe compensator; operating the two lifting jacks at the same time so as to enable the supporting rods to support the two arms of the heat pipe compensator, and stopping operating the lifting jacks when the gap distance between the heat pipe compensator and a heat pipe is equal to the prestretching value; welding the heat pipe compensator and the heat pipe; withdrawing the two lifting jacks. The method can be operated at the same time by one person, manpower is saved, jacking force of the lifting jacks to the tile blocks can be uniformly distributed on the two arms of the heat pipe compensator, and deflection or displacement of the heat pipe compensator is avoided.
Description
Technical field
The present invention relates to a kind of heat distribution pipeline treatment technology, particularly a kind of method of heating pipeline compensator pre-stretching.
Background technique
Existing heat distribution pipeline prestretching, generally adopts anchor point, jack to carry out prestretching and reach prestretching value in compensation of pipeline expansive force both sides, work as condition restriction, when anchor point cannot arrange, and prestretching Comparision difficulty; And need two groups of people operation simultaneously at compensation expansive force both sides prestretching, and human input is many, and the easy sideslip of pulling force is inhomogeneous.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of heating pipeline compensator pre-stretching, uses the method not only can save manpower, and can make two arms of heating pipeline compensator stressed evenly.
For achieving the above object, the invention provides following technological scheme: a kind of method of heating pipeline compensator pre-stretching, comprises the steps:
1), get two jack;
2), on the push rod of two jack, weld respectively a strut;
3), get two circular arc tile fragments, the circular arc place diameter of a circle of tile fragment is consistent with heating pipeline compensator outer wall place diameter of a circle;
4), a circular arc tile fragment in the other end welding of strut respectively, and keep soldering point to be positioned at the center of tile fragment, soldering point is positioned on the convex surface of tile fragment;
5), by the bottom of two jack that welded mutually back to and contact, put between two arms of heating pipeline compensator, and operate two jack simultaneously, make the tile fragment at the two ends tube wall of heating pipeline compensator of fully fitting, and keep two jack bodies not to be subjected to displacement;
6) operate two jack, simultaneously, make strut prop up two arms of heating pipeline compensator, when heating pipeline compensator and heat distribution pipeline between clearance distance while equaling prestretching value, shut-down operation jack, and keep jack motionless;
7), heating pipeline compensator and heat distribution pipeline are welded;
8), cancel two jack.
Preferably, before two jack are put between heating pipeline compensator two arms, first weld a fixed support for support jack between heating pipeline compensator two arms, this fixed support and ground are fixed.
Adopt technique scheme, two jack are placed between two arms of heating pipeline compensator, utilize the top power of jack that two arms of heating pipeline compensator are strutted, reach the prestretching value of heating pipeline compensator, the method only needs a people to operate simultaneously, the manpower of saving, and strut is connected to the center of tile fragment, the top power that makes tile fragment be subject to jack evenly spreads on two arms of heating pipeline compensator, has avoided the displacement of heating pipeline compensator sideslip.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of the A portion of Fig. 1.
Wherein, 1. jack 2. strut 3. tile fragment 4. heating pipeline compensators.
Embodiment
Below in conjunction with accompanying drawing, by the description to embodiment, the present invention will be further described:
1. as depicted in figs. 1 and 2, the method for a kind of heating pipeline compensator pre-stretching of the present invention, comprises the steps:
1), get two jack 1;
2), on the push rod of two jack 1, weld respectively a strut 2;
3), get two circular arc tile fragments 3, the circular arc place diameter of a circle of tile fragment 3 is consistent with heating pipeline compensator 4 outer wall place diameter of a circles;
4), a circular arc tile fragment 3 in the other end welding of strut 2 respectively, and keep soldering point to be positioned at the center of tile fragment 3, soldering point is positioned on the convex surface of tile fragment 3;
5), by the bottom of two jack 1 that welded mutually back to and contact, put between two arms of heating pipeline compensator 4, and operate two jack 1 simultaneously, make the fully tube wall of laminating heating pipeline compensator 4 of tile fragment 3 at two ends, and keep two jack 1 bodies not to be subjected to displacement;
6) operate two jack 1, simultaneously, make strut 2 prop up two arms of heating pipeline compensator 4, when heating pipeline compensator 4 and heat distribution pipeline between clearance distance while equaling prestretching value, shut-down operation jack 1, and keep jack 1 motionless;
7), heating pipeline compensator 4 and heat distribution pipeline are welded;
8), cancel two jack 1.
The present invention is before putting into two jack 1 between 4 liang of arms of heating pipeline compensator, between 4 liang of arms of heating pipeline compensator, first weld a fixed support for support jack 1, this fixed support and ground are fixed, avoid rocking or displacement in the time shoring two arm of heating pipeline compensator 4, also can avoid using manpower support jack 1.
Adopt technique scheme, two jack 1 are placed between two arms of heating pipeline compensator 4, utilize the top power of jack 1 that two arms of heating pipeline compensator 4 are strutted, reach the prestretching value of heating pipeline compensator 4, this device only needs a people to operate simultaneously, the manpower of saving, and strut 2 is connected to the center of tile fragment 3, the top power that makes tile fragment 3 be subject to jack 1 evenly spreads on two arms of heating pipeline compensator 4, has avoided heating pipeline compensator 4 sideslips or displacement.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (2)
1. a method for heating pipeline compensator pre-stretching, is characterized in that: comprise the following steps:
1), get two jack;
2), on the push rod of two jack, weld respectively a strut;
3), get two circular arc tile fragments, the circular arc place diameter of a circle of tile fragment is consistent with heating pipeline compensator outer wall place diameter of a circle;
4), a circular arc tile fragment in the other end welding of strut respectively, and keep soldering point to be positioned at the center of tile fragment, soldering point is positioned on the convex surface of tile fragment;
5), by the bottom of two jack that welded mutually back to and contact, put between two arms of heating pipeline compensator, and operate two jack simultaneously, make the tile fragment at the two ends tube wall of heating pipeline compensator of fully fitting, and keep two jack bodies not to be subjected to displacement;
6) operate two jack, simultaneously, make strut prop up two arms of heating pipeline compensator, when heating pipeline compensator and heat distribution pipeline between clearance distance while equaling prestretching value, shut-down operation jack, and keep jack motionless;
7), heating pipeline compensator and heat distribution pipeline are welded;
8), cancel two jack.
2. the method for heating pipeline compensator pre-stretching according to claim 1, it is characterized in that: before two jack are put between heating pipeline compensator two arms, between heating pipeline compensator two arms, first weld a fixed support for support jack, this fixed support and ground are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499231.1A CN104197142B (en) | 2014-09-25 | 2014-09-25 | A kind of method of heating pipeline compensator prestretched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499231.1A CN104197142B (en) | 2014-09-25 | 2014-09-25 | A kind of method of heating pipeline compensator prestretched |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104197142A true CN104197142A (en) | 2014-12-10 |
| CN104197142B CN104197142B (en) | 2016-11-23 |
Family
ID=52082480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410499231.1A Active CN104197142B (en) | 2014-09-25 | 2014-09-25 | A kind of method of heating pipeline compensator prestretched |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104197142B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869934A (en) * | 1971-08-05 | 1975-03-11 | Philip F Pierce | Belt tensioning tool |
| US3920219A (en) * | 1974-07-02 | 1975-11-18 | Jr James N Hendrix | Apparatus for tightening belts |
| FR2594514A1 (en) * | 1986-02-14 | 1987-08-21 | Robitail Regis | Belt-tensioning device |
| CN1049469A (en) * | 1989-08-12 | 1991-02-27 | 徐庭中 | Universal propping and pulling tool |
| CN101459323A (en) * | 2008-12-11 | 2009-06-17 | 江苏省电力公司南京供电公司 | Electric cable bending machine |
| CN201473259U (en) * | 2009-08-19 | 2010-05-19 | 江苏蛟龙重工集团有限公司 | Portable adjustable lifting jack |
| CN102691314A (en) * | 2012-06-11 | 2012-09-26 | 中交一航局第二工程有限公司 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
| CN104015164A (en) * | 2014-06-11 | 2014-09-03 | 兰成刚 | High-pressure pipeline valve replacement device |
-
2014
- 2014-09-25 CN CN201410499231.1A patent/CN104197142B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869934A (en) * | 1971-08-05 | 1975-03-11 | Philip F Pierce | Belt tensioning tool |
| US3920219A (en) * | 1974-07-02 | 1975-11-18 | Jr James N Hendrix | Apparatus for tightening belts |
| FR2594514A1 (en) * | 1986-02-14 | 1987-08-21 | Robitail Regis | Belt-tensioning device |
| CN1049469A (en) * | 1989-08-12 | 1991-02-27 | 徐庭中 | Universal propping and pulling tool |
| CN101459323A (en) * | 2008-12-11 | 2009-06-17 | 江苏省电力公司南京供电公司 | Electric cable bending machine |
| CN201473259U (en) * | 2009-08-19 | 2010-05-19 | 江苏蛟龙重工集团有限公司 | Portable adjustable lifting jack |
| CN102691314A (en) * | 2012-06-11 | 2012-09-26 | 中交一航局第二工程有限公司 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
| CN104015164A (en) * | 2014-06-11 | 2014-09-03 | 兰成刚 | High-pressure pipeline valve replacement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104197142B (en) | 2016-11-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |