CN102489908B - Prestressed elongation heating device for rapid cooling heat exchanger - Google Patents
Prestressed elongation heating device for rapid cooling heat exchanger Download PDFInfo
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- CN102489908B CN102489908B CN201110458775.XA CN201110458775A CN102489908B CN 102489908 B CN102489908 B CN 102489908B CN 201110458775 A CN201110458775 A CN 201110458775A CN 102489908 B CN102489908 B CN 102489908B
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- protection tube
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- heating
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Abstract
The invention relates to the technical field of petrochemical equipment, in particular to a prestressed elongation heating device for a rapid cooling heat exchanger. The heating device comprises a protection tube, a heating component and supporting components, wherein the heating component is arranged in an inner cavity of the protection tube and connected with two ends of the protection tube; the supporting components are arranged outside the protection tube; and rolling wheels are arranged on the outer edges of the supporting components. Compared with the prior art, the heating device can quickly and uniformly heat an inner tube, can accurately control temperature and elongation, ensures welding quality, and has the characteristics of simple structure, low cost and high product welding quality; and a workpiece is needed to rotate during welding, and the workpiece can rotate while the heating device does not rotate.
Description
Technical field
The present invention relates to petrochemical equipment technical field, particularly relate to rapid-cooling heat exchanger prestressing force and extend heater.
Background technology
Cracking stock after the quick cooling down high-temperature cracking of rapid-cooling heat exchanger energy, preventing the generation of secondary response, is one of key equipment of pyrolysis furnace.Common rapid-cooling heat exchanger is made up of double-jacket tube heat exchange element, header and connector etc., double-jacket tube heat exchange element is mutually overlapped by inner and outer pipe and is combined into, during work, interior pipe passes into Pintsch process gas, gap between outer tube and interior pipe passes into cooling medium, because the temperature difference of inner and outer pipe medium is larger, make the expansion length of inner and outer tubes different, interior pipe extends and is greater than outer tube, the link position of inner and outer tubes is easily made to form larger temperature stress, thus crack, even there is the phenomenon ruptured.
For solving the problem, need by interior pipe prestretched is reduced differential expansion.
Such as: Authorization Notice No. is that the Chinese utility model patent of CN201787857U discloses one " rapid-cooling heat exchanger prestressed casing " on April 6th, 2011, its technical scheme comprises " interior pipe, outer tube and lower connector form; wherein, interior pipe and outer tube respectively with lower connector by being welded to connect." concrete manufacture method is: in the process of interior pipe blanking, will certain size be shortened.When lower connector and inner and outer pipe group pair, between interior pipe and lower connector, there is certain gap; First weld outer tube and lower connector, after weld, utilize heating tube to heat interior pipe, make its elongation of expanding, dock until be connected with lower part, weld under the condition of laser heating, disposablely to complete; After having welded, remove heating tube, interior pipe just has certain pre-tensile stress.But in above-mentioned welding process, the control of temperature is one of them difficult problem, and the change of temperature can cause the change of elongation, thus affects welding quality, even produce drawing crack weld seam.
Therefore, for the problems referred to above, provide one can realize fast, pipe in heating equably, and can accurately control temperature and elongation, the technology of the rapid-cooling heat exchanger prestressing force elongation heater that structure is simple simultaneously, welding quality is high is particularly important.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and provide one can realize fast, equably heating in pipe, and can accurately control temperature and elongation, the rapid-cooling heat exchanger prestressing force that structure is simple simultaneously, welding quality is high extends heater.
Object of the present invention is achieved through the following technical solutions:
Provide rapid-cooling heat exchanger prestressing force and extend heater; include protection tube, heating component and supporting component; described heating component to be arranged in the inner chamber of described protection tube and to be connected with the two ends of described protection tube; described supporting component is arranged at the outside of described protection tube, and the outer portion of described supporting component is provided with scroll wheel.
Wherein, described supporting component is collar-shaped supporting component.
Wherein, described collar-shaped supporting component is the collar-shaped supporting component removably connected by screw by two semicircle assemblies.
Wherein, described heating component is the heating rope that surface is provided with thermal conductivity good insulator.
Wherein, described heating component is the heating rope that surface string is provided with ceramic bead.
Wherein, described protection tube is the protection tube be spliced by multistage.
Wherein, described scroll wheel is at least provided with three and the setting that is evenly distributed along the outer portion of described supporting component.
Wherein, described protection tube is evenly provided with at least two supporting components along tube axial direction.
Wherein, described protection tube is evenly provided with four supporting components along tube axial direction.
Wherein, the two ends of described heating component are flexibly connected with the two ends of described protection tube respectively.
Beneficial effect of the present invention:
Rapid-cooling heat exchanger prestressing force of the present invention extends heater; include protection tube, heating component and supporting component; described heating component to be arranged in the inner chamber of described protection tube and to be connected with the two ends of described protection tube; described supporting component is arranged at the outside of described protection tube, and the outer portion of described supporting component is provided with scroll wheel.Compared with prior art, the present invention can realize fast, can pipe in homogeneous heating, and can accurately control temperature and elongation, and guarantee welding quality, has the advantages that structure is simple, cost is low, Product jointing quality is high.Further, when welding, workpiece needs to rotate, and this heater can realize workpiece rotation and this device does not rotate.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation that rapid-cooling heat exchanger prestressing force of the present invention extends heater.
Fig. 2 is the structural representation that rapid-cooling heat exchanger prestressing force of the present invention extends another visual angle of heater.
Include in fig. 1 and 2:
1---heating rope;
2---protection tube;
3---supporting component;
4---scroll wheel;
5---screw.
Detailed description of the invention
The invention will be further described with the following Examples.
Rapid-cooling heat exchanger prestressing force of the present invention extends the detailed description of the invention of heater; as depicted in figs. 1 and 2; include protection tube, heating component and supporting component; described heating component to be arranged in the inner chamber of described protection tube and to be connected with the two ends of described protection tube; described supporting component is arranged at the outside of described protection tube, and the outer portion of described supporting component is provided with scroll wheel.
Concrete, described supporting component is collar-shaped supporting component.This supporting component ring establishes the excircle of protection tube.
Concrete, described collar-shaped supporting component is the collar-shaped supporting component removably connected by screw by two semicircle assemblies.When screw is unscrewed, supporting component can move to optional position vertically on protection tube, and screw tightens rear support assembly and can be fixed on protection tube, and convenient installation, use are flexibly.
Concrete, described heating component is the heating rope that surface is provided with thermal conductivity good insulator.
Concrete, described heating component is the heating rope that surface string is provided with ceramic bead.The upper string of heating rope is provided with multiple ceramic bead, has thermal conductivity and the good feature of insulating properties.
Concrete, described protection tube is the protection tube be spliced by multistage.Protection tube can divide multistage to be formed by connecting, convenient mounting or dismounting, meanwhile, is applicable to the heating of pipe in different length after changing heating rope.
Concrete, described scroll wheel is at least provided with three and the setting that is evenly distributed along the outer portion of described supporting component.Be arranged at the scroll wheel on supporting component and be no less than three along the excircle distribution of support group, this scroll wheel can swaying direction within the specific limits, prevents rapid-cooling heat exchanger prestressing force from extending heater, when workpiece rotates, play occurs.
Concrete, described protection tube is evenly provided with at least two supporting components along tube axial direction.Be convenient to fixing in interior pipe to be heated.
Concrete, described protection tube is evenly provided with four supporting components along tube axial direction.The length of quantity depending on protection tube of supporting component is specifically set.
Concrete, the two ends of described heating rope are flexibly connected with the two ends of described protection tube respectively.The two ends of heating rope are by being flexibly connected the two ends being fixed on protection tube, and the centre of heating rope need not be fixed, and not only install simple, and the replacing of convenient heating rope.
Use procedure of the present invention: during specific works, pierced into by whole device and need, in pipe to be heated, to switch on power and can heat, with thermocouple measuring temperature, temperature controller controls heating process; When being needed to rotate by pipe in heating, this heater can keep motionless.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (7)
1. rapid-cooling heat exchanger prestressing force extends heater, it is characterized in that: for heating pipe in rapid-cooling heat exchanger, include protection tube, heating component and supporting component, described heating component is arranged in the inner chamber of described protection tube, and be connected with the two ends of described protection tube, described supporting component is arranged at the outside of described protection tube, the outer portion of described supporting component is provided with scroll wheel, described supporting component is collar-shaped supporting component, described collar-shaped supporting component is the collar-shaped supporting component removably connected by screw by two semicircle assemblies, described heating component is the heating rope that surface is provided with thermal conductivity good insulator.
2. rapid-cooling heat exchanger prestressing force according to claim 1 extends heater, it is characterized in that: described heating component is the heating rope that surface string is provided with ceramic bead.
3. rapid-cooling heat exchanger prestressing force according to claim 1 extends heater, it is characterized in that: described protection tube is the protection tube be spliced by multistage.
4. rapid-cooling heat exchanger prestressing force according to claim 1 extends heater, it is characterized in that: described scroll wheel is at least provided with three and the setting that is evenly distributed along the outer portion of described supporting component.
5. rapid-cooling heat exchanger prestressing force according to claim 1 extends heater, it is characterized in that: described protection tube is evenly provided with at least two supporting components along tube axial direction.
6. rapid-cooling heat exchanger prestressing force according to claim 5 extends heater, it is characterized in that: described protection tube is evenly provided with four supporting components along tube axial direction.
7. rapid-cooling heat exchanger prestressing force according to claim 1 extends heater, it is characterized in that: the two ends of described heating component are flexibly connected with the two ends of described protection tube respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458775.XA CN102489908B (en) | 2011-12-31 | 2011-12-31 | Prestressed elongation heating device for rapid cooling heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458775.XA CN102489908B (en) | 2011-12-31 | 2011-12-31 | Prestressed elongation heating device for rapid cooling heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102489908A CN102489908A (en) | 2012-06-13 |
| CN102489908B true CN102489908B (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110458775.XA Active CN102489908B (en) | 2011-12-31 | 2011-12-31 | Prestressed elongation heating device for rapid cooling heat exchanger |
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| Country | Link |
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| CN (1) | CN102489908B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338077A (en) * | 2018-09-13 | 2019-02-15 | 茂名重力石化装备股份公司 | A kind of concentrating type prestressing force elongation heating system for rapid-cooling heat exchanger |
| CN109269340A (en) * | 2018-09-30 | 2019-01-25 | 茂名重力石化装备股份公司 | A kind of full penetration deep hole welding structure of waste heat boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163358Y (en) * | 1993-07-10 | 1994-04-27 | 曾振洲 | Indirectly heating high temp radiation tube |
| CN2571104Y (en) * | 2002-09-23 | 2003-09-03 | 王习之 | Heat-generating pipe made by carbon fiber wire |
| CN101457541A (en) * | 2007-12-14 | 2009-06-17 | 肖建选 | Electric heating apparatus in water pipe |
| CN201294651Y (en) * | 2008-11-19 | 2009-08-19 | 中国石油天然气管道局第三工程分公司 | Switching type pipe electromagnetic-induction heater |
| CN202388154U (en) * | 2011-12-31 | 2012-08-22 | 茂名重力石化机械制造有限公司 | Prestress extending heating unit of quenching heat exchanger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3970970B2 (en) * | 1997-02-05 | 2007-09-05 | 株式会社フジクラ | Cable cooling heat pipe installation jig |
| JP4402946B2 (en) * | 2003-12-18 | 2010-01-20 | アイセル株式会社 | Cylindrical welding apparatus and welding jig used therefor |
-
2011
- 2011-12-31 CN CN201110458775.XA patent/CN102489908B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163358Y (en) * | 1993-07-10 | 1994-04-27 | 曾振洲 | Indirectly heating high temp radiation tube |
| CN2571104Y (en) * | 2002-09-23 | 2003-09-03 | 王习之 | Heat-generating pipe made by carbon fiber wire |
| CN101457541A (en) * | 2007-12-14 | 2009-06-17 | 肖建选 | Electric heating apparatus in water pipe |
| CN201294651Y (en) * | 2008-11-19 | 2009-08-19 | 中国石油天然气管道局第三工程分公司 | Switching type pipe electromagnetic-induction heater |
| CN202388154U (en) * | 2011-12-31 | 2012-08-22 | 茂名重力石化机械制造有限公司 | Prestress extending heating unit of quenching heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN102489908A (en) | 2012-06-13 |
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Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Patentee after: THE CHALLENGE PETROCHEMICAL MACHINERY Corp. Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Patentee before: THE CHALLENGE PETROCHEMICAL MACHINERY Corp. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220727 Address after: 525099 No. 91, Huanshi West Road, Maoming City, Guangdong Province Patentee after: THE CHALLENGE PETROCHEMICAL MACHINERY Corp. Patentee after: SINOPEC ENGINEERING Inc. Address before: 525024 No. 91 West Ring Road, Guangdong, Maoming Patentee before: THE CHALLENGE PETROCHEMICAL MACHINERY Corp. |
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| TR01 | Transfer of patent right |