CN201235452Y - Soldering maintaining furnace for soldering heavy sectional steel component - Google Patents
Soldering maintaining furnace for soldering heavy sectional steel component Download PDFInfo
- Publication number
- CN201235452Y CN201235452Y CNU2008200517643U CN200820051764U CN201235452Y CN 201235452 Y CN201235452 Y CN 201235452Y CN U2008200517643 U CNU2008200517643 U CN U2008200517643U CN 200820051764 U CN200820051764 U CN 200820051764U CN 201235452 Y CN201235452 Y CN 201235452Y
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- heater
- welding
- steel members
- temperature
- furnace
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Abstract
The utility model relates to a welding holding furnace used for welding large-scale steel members. The welding holding furnace comprises a long slot shaped furnace body used for accommodating steel members, an electric heating element for heating the steel members is arranged at the lower part of the furnace body, a temperature control box is arranged outside the furnace body, and a temperature-sensing element for detecting the temperature of the steel members is arranged in the hearth; when the welding holding furnace works, the steel members being preheated are hoisted in the furnace body, the welding operation is performed at one side above the steel members by a plurality of welders, the lower parts of the steel members are heated through the electric heating element, the overall temperature of the steel members is maintained within more balanced range under the controlling of the temperature control box, therefore, the steel members are not easy to distort or crack during the welding process, the welding quality is ensured, and in addition, since the steel members are placed in the furnace body, a great amount of heat is effectively prevented from being lost, the energy efficiency is improved, and meanwhile, the temperature of the working environment of the welders is also reduced.
Description
Technical field
The utility model relates to a kind of attemperator, particularly a kind of holding furnace that is applied to weld large high-strength quenched and tempered steel member.
Background technology
At present, in the solder technology of large high-strength quenched and tempered steel member, for the intensity after the welding of steel member, having relatively high expectations of welding precision, assembling and welding such as pile legs of self-elevating drilling platform, because the material of this spud leg has adopted super-high strength steel, and thickness is all more than 100 millimeters, the weight of single products is all more than 10000KG, therefore in welding, extremely be easy to generate defectives such as crackle, the welding precision of this welding structural element requires high simultaneously, distortion in the 8000 mm length scopes must not be above 2.5 millimeters, present same or similar steel member needs earlier steel member integral body to be heated in advance before welding, when welding, just be difficult for producing distortion, traditional heating technology is to adopt the form of a plurality of electric heating sheets heating in heating process, with JU2000E spud leg product is example, this single product weight is 14000KG, whole heating or insulating process altogether required power are 10 kilowatts 45 of electric heating sheets or more, as shown in Figure 1, all be together in parallel again after these electric heating sheets (6) are attached to steel member (5) outer surface, the steel member is heated, existing most producers all adopt with upper type and carry out heat tracing, but there is following problem in this technology, at first, when being incubated welding after the heating of steel member, the steel member temperature is difficult to evenly, the steel component partial temperature at tight obedient electric heating sheets place is higher, the temperature of other position is low, has influenced welding quality; In addition, when welding, because the temperature height of steel member, heat radiation is big, not only causes a large amount of energy wastes, also makes welder's working environment more abominable simultaneously.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of welding holding furnace that can improve steel component quality, heat utilization efficiency height, high insulating effect, can effectively improve welder's operating environment.
The technical scheme that the utility model adopted is:
Be used to weld the welding holding furnace of large-scale steel spare, it comprises body of heater, described body of heater is the flute profile body of heater that open top and furnace chamber can hold the steel member, the body of heater bottom is provided with the electric heating sheets that can heat the steel member, the body of heater outer setting has temperature control box, is provided with the temperature-sensing element that can detect the steel member temperature in the burner hearth.
Further improvement of the utility model, described temperature-sensing element is a thermocouple.
Further improvement of the utility model, described electric heating sheets is installed on the burner hearth bottom of body of heater.
The beneficial effects of the utility model are: when work, steel lifting component after preheating is gone in the body of heater, by several welders a steel member side is up carried out weld job, the steel member temperature of a side up reaches toward the influence of extraneous heat radiation with being subjected to sweating heat, the bottom of steel member is then heated by electric heating sheets, under the control of temperature control box, make the bulk temperature of steel member remain on the scope of comparison balance, not yielding or cracking when welding, guaranteed welding quality, in addition, because the steel member is placed in the body of heater, effectively stopped scattering and disappearing of most of heat, improve efficiency, also reduced the temperature of welding work environment simultaneously; Further, described temperature-sensing element has adopted thermocouple, make that temperature control is more accurate, and the performance of thermocouple under hot environment is more stable; In addition, more reasonable for heat is transmitted, electric heating sheets is installed on the burner hearth bottom of body of heater, and the better effects if of its convection current is installed on the more compact structure that the bottom makes this holding furnace simultaneously when heating.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of traditional heating stove;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is A-A cross section enlarged drawing of Fig. 2;
Fig. 4 is B-B cross section enlarged drawing of Fig. 2.
The specific embodiment
With reference to Fig. 2 to Fig. 4, a kind of welding holding furnace that is used to weld large-scale steel spare, it comprises the long trough body of heater 1 that can hold strip steel member 5, body of heater 1 bottom is provided with the electric heating sheets 2 that can heat steel member 5, body of heater 1 outer setting has temperature control box 3, is provided with the temperature-sensing element 4 that can detect the steel member temperature in the burner hearth.
When work, steel lifting component after preheating is gone in the body of heater, by several welders a steel member side is up carried out weld job, the steel member temperature of a side up reaches toward the influence of extraneous heat radiation with being subjected to sweating heat, the bottom of steel member is then heated by electric heating sheets, under the control of temperature control box, make the bulk temperature of steel member remain on the scope of comparison balance, not yielding or cracking when welding, guaranteed welding quality, in addition, because the steel member is placed in the body of heater, effectively stopped scattering and disappearing of most of heat, improve efficiency, also reduced the temperature of welding work environment simultaneously.
Further, described temperature-sensing element 4 has adopted the form of thermocouple, make that temperature control is more accurate, and the performance of thermocouple under hot environment is more stable, and similarly, temperature-sensing element also can adopt forms such as resistance temperature-sensing probe.
In addition, more reasonable for heat is transmitted, the design is installed on the burner hearth bottom of body of heater with electric heating sheets, and the better effects if of its convection heat transfer' heat-transfer by convection is installed on the more compact structure that the bottom makes this holding furnace simultaneously when heating.
In order to raise the efficiency, reduce scattering and disappearing of heat, the design also can be provided with heat-barrier material 11 in the furnace wall of body of heater 1.Further optimal way, also can be provided with the insulation material 12 that can prevent that heat scatters and disappears outward from the gap between steel member and the furnace wall in the upper shed of body of heater 1, aforesaid way has also reduced the operating ambient temperature that carries out the welder of weld job around equipment except improving heat utilization efficiency.
Because Welder's duration, operating personnel are many, this equipment takes into full account man-machine factor when design, make the position while welding of steel member remain on the 1m height as far as possible, make the welder under natural stance, to work, reduce its degree of fatigue, for not overslaugh welder operation, corresponding the utility model is designed to 0.8～1 meter with the height of furnace wall, body of heater 1 both sides, more preferably highly is 0.9 meter.
The above be the utility model preferred embodiment, it does not constitute the restriction to the utility model protection domain, so long as realize that with essentially identical means the purpose of this utility model all should belong to protection domain of the present utility model.
Claims (7)
1. be used to weld the welding holding furnace of large-scale steel spare, it comprises body of heater (1), it is characterized in that: described body of heater (1) is the flute profile body of heater that open top and furnace chamber can hold the steel member, body of heater (1) bottom is provided with the electric heating sheets (2) that can heat the steel member, body of heater (1) outer setting has temperature control box (3), is provided with the temperature-sensing element (4) that can detect the steel member temperature in the burner hearth.
2. the welding holding furnace that is used to weld large-scale steel spare according to claim 1 is characterized in that: described temperature-sensing element (4) is a thermocouple.
3. the welding holding furnace that is used to weld large-scale steel spare according to claim 1 is characterized in that: described electric heating sheets (2) is installed on the burner hearth bottom of body of heater.
4. the welding holding furnace that is used to weld large-scale steel spare according to claim 1 is characterized in that: the furnace wall of body of heater (1) is provided with heat-barrier material (11).
5. according to claim 1,2, the 3 or 4 described welding holding furnaces that are used to weld large-scale steel spare, it is characterized in that: the upper shed of described body of heater (1) is provided with the insulation material (12) that can prevent that heat scatters and disappears outward from the gap between steel member and the furnace wall.
6. according to claim 1,2, the 3 or 4 described welding holding furnaces that are used to weld large-scale steel spare, it is characterized in that: the height of described body of heater (1) both sides riser is 0.8～1 meter.
7. the welding holding furnace that is used to weld large-scale steel spare according to claim 6 is characterized in that: the height of described body of heater (1) both sides riser is 0.9 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200517643U CN201235452Y (en) | 2008-07-30 | 2008-07-30 | Soldering maintaining furnace for soldering heavy sectional steel component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200517643U CN201235452Y (en) | 2008-07-30 | 2008-07-30 | Soldering maintaining furnace for soldering heavy sectional steel component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235452Y true CN201235452Y (en) | 2009-05-13 |
Family
ID=40648189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200517643U Expired - Fee Related CN201235452Y (en) | 2008-07-30 | 2008-07-30 | Soldering maintaining furnace for soldering heavy sectional steel component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235452Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962611A (en) * | 2012-11-16 | 2013-03-13 | 东方电气(广州)重型机器有限公司 | Heating device for dynamic welding of large-size thick-wall workpiece |
| CN103418945A (en) * | 2013-07-23 | 2013-12-04 | 江苏玉龙钢管股份有限公司 | Welding trolley |
| CN110408765A (en) * | 2019-09-06 | 2019-11-05 | 哈尔滨锅炉厂有限责任公司 | A kind of thick-walled vessel case heat treating method |
-
2008
- 2008-07-30 CN CNU2008200517643U patent/CN201235452Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962611A (en) * | 2012-11-16 | 2013-03-13 | 东方电气(广州)重型机器有限公司 | Heating device for dynamic welding of large-size thick-wall workpiece |
| CN102962611B (en) * | 2012-11-16 | 2015-05-27 | 东方电气(广州)重型机器有限公司 | Heating device for dynamic welding of large-size thick-wall workpiece |
| CN103418945A (en) * | 2013-07-23 | 2013-12-04 | 江苏玉龙钢管股份有限公司 | Welding trolley |
| CN103418945B (en) * | 2013-07-23 | 2015-10-21 | 江苏玉龙钢管股份有限公司 | A kind of welding chassis |
| CN110408765A (en) * | 2019-09-06 | 2019-11-05 | 哈尔滨锅炉厂有限责任公司 | A kind of thick-walled vessel case heat treating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20140730 |
|
| EXPY | Termination of patent right or utility model |