CN202894610U - Heating device for shell plate of pressure vessel - Google Patents
Heating device for shell plate of pressure vessel Download PDFInfo
- Publication number
- CN202894610U CN202894610U CN201220229851XU CN201220229851U CN202894610U CN 202894610 U CN202894610 U CN 202894610U CN 201220229851X U CN201220229851X U CN 201220229851XU CN 201220229851 U CN201220229851 U CN 201220229851U CN 202894610 U CN202894610 U CN 202894610U
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- CN
- China
- Prior art keywords
- pipe
- heating
- fuel
- reducing valve
- pressure
- 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.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 54
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 206010016754 Flashback Diseases 0.000 claims description 8
- 239000002828 fuel tank Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 14
- 238000005474 detonation Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 2
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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- Heat Treatment Of Articles (AREA)
- Gas Burners (AREA)
Abstract
The utility model discloses a heating device for a shell plate of a pressure vessel. The heating device for the shell plate of the pressure vessel comprises a fuel jar, a pressure reducing valve, a fuel conveying pipeline, a distribution pipe and a heating burning nozzle, wherein the fuel conveying pipeline is connected with the fuel jar through the pressure reducing valve, and the distribution pipe in a circular arc shape is connected with the fuel conveying pipeline. The distribution pipe is provided with a fuel conveying pipe connection mouth, and the fuel conveying pipe connection mouth is connected with an air bottle through a flexible pipe and the pressure reducing valve. A connection head of the heating burning nozzle is connected with the distribution pipe in a welded mode. The heating burning nozzle comprises a fan cover, a nozzle and the connection head. The heating device for the shell plate of the pressure vessel is stable in flame, strong in heating capacity, free from defects of flamelifting, backfire, intermittent detonation and the like, complete in combustion, reliable and durable in use and convenient to operate and maintain. The heating efficiency is improved greatly, the labor intensity is lowered, the time used in welding is shortened, and the welding quality is improved.
Description
Technical field
The utility model relates in a kind of pressure vessel or the manufacture of steel structure installation, a kind of heating facility that the pre-after heat of thick plates is used, particularly a kind of pressure shell heating apparatus.
Background technology
In the manufacturing of pressure vessel and steel construction, the welding of slab and steel alloy all requires butt-welding fitting to carry out preheating and after heat on the technique.Purpose is to reduce welding stress, avoids cracking.
Generally adopt at present electrical heating and gas flame mode of heating etc.Electrical heating needs the feed cable power supply; There are the deficiencies such as seriously polluted, that the thermal efficiency is low, nozzle operation is unstable in gas flame heating in the past.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of pressure shell heating apparatus, makes efficient obtain larger raising, reduces labour intensity; Shorten weld interval, improve welding quality.
For the purpose that realizes solving the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of pressure shell heating apparatus of the present utility model comprises fuel tank, pressure-reducing valve, fuel feed line, distributing pipe, heating burner, and wherein, fuel-supply pipe is connected on the fuel tank by pressure-reducing valve, and distributing pipe is connected in fuel feed line;
Described distributing pipe is circular arc; The fuel-supply pipe interface is arranged on the distributing pipe, connect gas cylinder with flexible pipe by pressure-reducing valve; Interval 200～300mm arranges the heating burner on the distributing pipe bend pipe; The joint of heating burner is welded on the distributing pipe;
The heating burner comprises fan housing, nozzle and joint; Fan housing is a metal circular tube, and the bottom is provided with a plurality of air inlets in the circumferential direction of the circle, and foot is provided with internal thread; Joint comprises disk that center is porose and disk one or the hollow pipe that links together, and the hole of disk has internal thread, and in order to connect nozzle, the disk outside has external screw thread, in order to connect fan housing; Hollow pipe is connected to distributing pipe.
The pressure shell heating apparatus of this patent, the heating burner is set to a row or multi-row, is arranged on commissure or weld seam both sides 80～150mm.
The pressure shell heating apparatus of this patent can also comprise flash-back arrestor, and flash-back arrestor is installed between pressure-reducing valve, the fuel feed line.
The pressure shell heating apparatus of this patent, using method is: welding work pieces or other devices that will need to heat are positioned on the support, the heating burner is apart from heated parts 50～80mm, the heated parts of cylinder type is placed on the roller of rotation and welds, and the heating distributing pipe is fixed on the support and is placed on ground.Workpiece rotates, and heater does not rotate.
By adopting technique scheme, the utlity model has following beneficial effect:
A kind of pressure shell heating apparatus of the present utility model proves this burner through overtesting and practical application: (1) flame stabilization, and heating efficiency is strong, without taking off fire, tempering, interrupted detonation and the erratic defective of flame; (2) burning is complete, and blue-flame is smokeless, meets environmental protection requirement; (3) use reliability and durability, convenient operating maintenance.
Technique is tried out in the processing of slab container, has changed former slab container heating means, and the efficiency of heating surface obtains larger raising; Labour intensity reduces; Weld used time shorten, improved welding quality; Fund and cost have been saved.Implementation result is good, reaches the purpose of expection.
Description of drawings
Fig. 1 is the pressure shell heating apparatus of this patent.
Fig. 2 is the center section plan of heating burner.
Among the figure, the 1-fan housing, the 2-nozzle, the 3-joint, the 4-welding work pieces, 5-heats burner, 6-distributing pipe, 7-fuel feed line, 8-flash-back arrestor, 9-pressure-reducing valve, 10-fuel tank.
The specific embodiment
Embodiment 1
Below in conjunction with accompanying drawing this patent is further explained.But the protection domain of this patent is not limited to concrete embodiment.
As shown in Figure 1, a kind of pressure shell heating apparatus of the present utility model, comprise fuel tank, pressure-reducing valve, fuel feed line, distributing pipe, heating burner, flash-back arrestor, wherein, fuel-supply pipe is connected on the fuel tank by pressure-reducing valve, and the heating burner is connected in fuel feed line by distributing pipe; Flash-back arrestor is installed between pressure-reducing valve, the fuel feed line.
Distributing pipe is one or more circular arc bend pipes, and each circular arc distributing pipe has a fuel-supply pipe interface; Generally heat in the bottom during welding; The topmost of welding work pieces is the facilities such as Lincoln weld, narrow gap welding.The heating burner is comprised of fan housing 1, nozzle 2, joint 3.Fan housing 1 is used steel pipe manufacturing, and the above has air inlet, and the bottom is provided with a plurality of air inlets in the circumferential direction of the circle, and foot is provided with internal thread; Nozzle 2 usefulness copper rods are processed; Joint is processed with round steel; Between them with being threaded into sub-assembly.
Gas storage by pressure-reducing valve 9, flash-back arrestor 8, fuel feed line 7, to each road distributing pipe 6, is welded with heating burner 5 on the distributing pipe in fuel tank 10.Heating burner 5 is comprised of fan housing 1, nozzle 2, joint 3.
Fuel gas high-speed is by nozzle 2, at the air inlet air amount of fan housing 1 and finish mixing, just can produce in the igniting of heating burner port and adds thermal-flame.The heating burner is apart from heated parts 50～80mm.According to thickness of slab, workpiece shape and environment temperature, welding position heating can be arranged or interior heating, local heat etc. with a row or two.
By the use said structure, the pressure shell heating apparatus flame stabilization of this patent, heating efficiency is strong, without taking off fire, tempering, interrupted detonation and the erratic defective of flame; Burning is complete, and blue-flame is smokeless, meets environmental protection requirement; Use reliability and durability, convenient operating maintenance; Shorten weld interval, increase work efficiency, guarantee welding quality, reduced labour intensity.
Claims (3)
1. pressure shell heating apparatus, it is characterized in that: comprise fuel tank, pressure-reducing valve, fuel feed line, distributing pipe, heating burner, wherein, fuel-supply pipe is connected on the fuel tank by pressure-reducing valve, and distributing pipe is connected in fuel feed line;
Described distributing pipe is circular arc; The fuel-supply pipe interface is arranged on the distributing pipe, connect gas cylinder with flexible pipe by pressure-reducing valve; Interval 200～300mm arranges the heating burner on the distributing pipe bend pipe; The joint of heating burner is welded on the distributing pipe;
The heating burner comprises fan housing, nozzle and joint; Fan housing is a metal circular tube, and the bottom is provided with a plurality of air inlets in the circumferential direction of the circle, and foot is provided with internal thread; Joint comprises the hollow pipe that disk that center is porose and disk one link together, and the hole of disk has internal thread, and in order to connect nozzle, the disk outside has external screw thread, in order to connect fan housing; Hollow pipe is connected to distributing pipe.
2. described pressure shell heating apparatus according to claim 1, it is characterized in that: described heating burner is set to a row or multi-row, is arranged on commissure or weld seam both sides 80～150mm.
3. described pressure shell heating apparatus according to claim 1, it is characterized in that: heater also comprises flash-back arrestor, flash-back arrestor is installed between pressure-reducing valve, the fuel feed line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220229851XU CN202894610U (en) | 2012-05-22 | 2012-05-22 | Heating device for shell plate of pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220229851XU CN202894610U (en) | 2012-05-22 | 2012-05-22 | Heating device for shell plate of pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894610U true CN202894610U (en) | 2013-04-24 |
Family
ID=48115327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220229851XU Expired - Lifetime CN202894610U (en) | 2012-05-22 | 2012-05-22 | Heating device for shell plate of pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894610U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400768A (en) * | 2017-08-17 | 2017-11-28 | 安徽卓煌机械设备有限公司 | A kind of manufacture of cement pressure roller roll surface built-up welding flame pre-heating system |
| CN107702095A (en) * | 2017-10-30 | 2018-02-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of shell ring circumferential weld heating arrangements of pressure vessel |
| CN109623209A (en) * | 2018-12-29 | 2019-04-16 | 张家港市江南锅炉压力容器有限公司 | A kind of preheating device for heat exchange pipe head welding |
-
2012
- 2012-05-22 CN CN201220229851XU patent/CN202894610U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400768A (en) * | 2017-08-17 | 2017-11-28 | 安徽卓煌机械设备有限公司 | A kind of manufacture of cement pressure roller roll surface built-up welding flame pre-heating system |
| CN107400768B (en) * | 2017-08-17 | 2019-04-16 | 惠州市光大水泥企业有限公司 | A kind of manufacture of cement pressure roller roll surface built-up welding flame pre-heating system |
| CN107702095A (en) * | 2017-10-30 | 2018-02-16 | 二重集团（镇江）重型装备厂有限责任公司 | A kind of shell ring circumferential weld heating arrangements of pressure vessel |
| CN109623209A (en) * | 2018-12-29 | 2019-04-16 | 张家港市江南锅炉压力容器有限公司 | A kind of preheating device for heat exchange pipe head welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471023 Luolong, Henan Province, Guan Lin China Petroleum First Construction Corporation Patentee after: China Petroleum & Natural Gas Construction Co., Ltd. Address before: 471023 Luolong, Henan Province, Guan Lin China Petroleum First Construction Corporation Patentee before: China Petroleum Natural Gas No.1 Construction Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |