CN208696604U - A kind of flame-type Circumferential Welds In Cylinders inner hole heating device - Google Patents
A kind of flame-type Circumferential Welds In Cylinders inner hole heating device Download PDFInfo
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- CN208696604U CN208696604U CN201821139881.5U CN201821139881U CN208696604U CN 208696604 U CN208696604 U CN 208696604U CN 201821139881 U CN201821139881 U CN 201821139881U CN 208696604 U CN208696604 U CN 208696604U
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- supervisor
- heating device
- flame
- inner hole
- circumferential welds
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Abstract
A kind of flame-type Circumferential Welds In Cylinders inner hole heating device, the utility model relates to a kind of Circumferential Welds In Cylinders inner hole heating device, it is in order to solve the problems, such as that steam turbine heat exchanger shell circumferential weld preheating temperature can not be lasting in the whole welding process.The flame-type Circumferential Welds In Cylinders inner hole heating device includes air inlet connecting leg, supervisor and combustion tube, supervisor is annulus tube body, multiple gas injection holes are provided in the outer circle circumferential direction of supervisor, radial aperture of the gas injection hole along supervisor, combustion tube is coaxially set in outside gas injection hole, and one end of air inlet connecting leg is connected with supervisor.The utility model is sewn in shell steamer machine heat exchanger thick wall shell butt joint ring using flame-type inner hole heating device and preheats, the interlayer temperature of circumferential weld any position in welding process is set to meet technique requirement, it improves work efficiency, shortens the production cycle, reduce manufacturing cost.
Description
Technical field
The utility model relates to a kind of Circumferential Welds In Cylinders inner hole heating devices.
Background technique
Existing steamer machine heat exchanger thick wall shell docks circumferential weld, is that crawler type electric heater is wrapped in weld seam two sides before weldering
Whole preheating is carried out, is heated to removing and carrying out submerged arc welding after desired temperature, but since diameter of the housing is big, interior cavity radiating
Fast and speed of welding causes interlayer temperature in welding process to be lower than technique requirement after a period of operation slowly, needs to carry out again
Preheating causes the shell docking circumferential weld production cycle long, influences production efficiency repeatedly.
Utility model content
The utility model is can not be in the whole welding process in order to solve steam turbine heat exchanger shell circumferential weld preheating temperature
Lasting problem, and a kind of flame-type Circumferential Welds In Cylinders inner hole heating device is provided.
The utility model flame-type Circumferential Welds In Cylinders inner hole heating device includes air inlet connecting leg, supervisor and combustion tube, Zhu Guanwei
Annulus tube body is provided with multiple gas injection holes, radial aperture of the gas injection hole along supervisor, combustion in the outer circle circumferential direction of supervisor
It burns pipe to be coaxially set in outside gas injection hole, one end of air inlet connecting leg is connected with supervisor.
The utility model devises a kind of flame-type Circumferential Welds In Cylinders inner hole heating dress according to gas-cooker burning working principle
It sets, which is mainly made of air inlet connecting leg, supervisor and combustion tube.Air inlet connecting leg is responsible for then for connecting gas band and supervisor
For connecting air inlet connecting leg and combustion tube, such heating device is had the advantages of simple structure and easy realization, and manufacturing process is simple, manufacturing cost
It is low.
The utility model is sewn on shell to steamer machine heat exchanger thick wall shell butt joint ring using flame-type inner hole heating device
It is inside preheated, so that the interlayer temperature of circumferential weld any position in welding process is met technique requirement, improve work efficiency, shorten
Production cycle, reduce manufacturing cost.
Detailed description of the invention
Fig. 1 is supervisor's structural schematic diagram with combustion tube, wherein A-shell；
Fig. 2 is the cross section structure figure of E-E in Fig. 1；
Fig. 3 is the structural schematic diagram of air inlet connecting leg.
Specific embodiment
Specific embodiment 1: present embodiment flame-type Circumferential Welds In Cylinders inner hole heating device includes air inlet connecting leg 1, supervisor
2 and combustion tube 3, supervisor 2 is annulus tube body, is provided with multiple gas injection holes 4, fuel gas injection in the outer circle circumferential direction of supervisor 2
Hole 4 is coaxially set in outside gas injection hole 4 along the radial aperture for being responsible for 2, combustion tube 3,2 phases of one end and supervisor of air inlet connecting leg 1
Connection.
Specific embodiment 2: the present embodiment is different from the first embodiment in that combustion tube 3 is welded on supervisor's 2
On tube wall.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that the length of combustion tube 3 is
80~120mm.
Specific embodiment 4: the pipe of combustion tube 3 unlike one of present embodiment and specific embodiment one to three
Mouth diameter is 6~10mm.
Specific embodiment 5: gas injection hole 4 unlike one of present embodiment and specific embodiment one to four
Aperture be 1~3mm.
Specific embodiment 6: the inner tube of supervisor 2 unlike one of present embodiment and specific embodiment one to five
Diameter is 3~4 times of caliber in combustion tube 3.
Specific embodiment 7: air inlet connecting leg 1 unlike one of present embodiment and specific embodiment one to six
One end is connected with supervisor 2, and the other end of air inlet connecting leg 1 connects gas band.
Embodiment: the present embodiment flame-type Circumferential Welds In Cylinders inner hole heating device includes air inlet connecting leg 1, supervisor 2 and combustion tube
3, supervisor 2 is annulus tube body, 10 gas injection holes 4 is provided in the outer circle circumferential direction of supervisor 2, gas injection hole 4 is along supervisor 2
Radial aperture, combustion tube 3 is coaxially set in outside gas injection hole 4, and one end of air inlet connecting leg 1 is connected with supervisor 2.
The present embodiment connects gas band and supervisor by air inlet connecting leg, and cutter point is utilized outside combustion tube after delivery of fuel gas
Fire starts to heat the welding portion of Circumferential Welds In Cylinders, after measurement temperature, which reaches technique, to be required, (can) turn down intake valve
Door, but still combustion heating is carried out, guarantee that the temperature of Circumferential Welds In Cylinders in the welding process meets technique requirement always.
The present embodiment is sewn in shell steamer machine heat exchanger thick wall shell butt joint ring using flame-type inner hole heating device
It is preheated, so that the interlayer temperature of circumferential weld any position in welding process is met technique requirement, improve work efficiency, shorten
Production cycle reduces manufacturing cost.
Claims (7)
1. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device, it is characterised in that the flame-type Circumferential Welds In Cylinders inner hole heating device packet
Air inlet connecting leg (1), supervisor (2) and combustion tube (3) are included, supervisor (2) is annulus tube body, is opened in the outer circle circumferential direction of supervisor (2)
Have multiple gas injection holes (4), gas injection hole (4) is coaxially set in combustion gas along the radial aperture for being responsible for (2), combustion tube (3)
Outside, one end of air inlet connecting leg (1) is connected spray-hole (4) with supervisor (2).
2. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that combustion tube (3) weldering
It connects on the tube wall of supervisor (2).
3. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that combustion tube (3)
Length is 80~120mm.
4. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that be combustion tube (3)
Nozzle diameter be 6~10mm.
5. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that gas injection hole
(4) aperture is 1~3mm.
6. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that supervisor's (2) is interior
Caliber is 3~4 times of combustion tube (3) interior caliber.
7. a kind of flame-type Circumferential Welds In Cylinders inner hole heating device according to claim 1, it is characterised in that air inlet connecting leg (1)
One end be connected with supervisor (2), the other end of air inlet connecting leg (1) connects gas band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821139881.5U CN208696604U (en) | 2018-07-18 | 2018-07-18 | A kind of flame-type Circumferential Welds In Cylinders inner hole heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821139881.5U CN208696604U (en) | 2018-07-18 | 2018-07-18 | A kind of flame-type Circumferential Welds In Cylinders inner hole heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208696604U true CN208696604U (en) | 2019-04-05 |
Family
ID=65938460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821139881.5U Active CN208696604U (en) | 2018-07-18 | 2018-07-18 | A kind of flame-type Circumferential Welds In Cylinders inner hole heating device |
Country Status (1)
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| CN (1) | CN208696604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250824A (en) * | 2020-03-30 | 2020-06-09 | 安徽马钢设备检修有限公司 | Welding device and repair process for inner hole wear surface of upper cross beam of large hydraulic press |
| CN112407346A (en) * | 2020-11-12 | 2021-02-26 | 中国空间技术研究院 | Thermal test method and device for metal fiber surface combustion structure |
-
2018
- 2018-07-18 CN CN201821139881.5U patent/CN208696604U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250824A (en) * | 2020-03-30 | 2020-06-09 | 安徽马钢设备检修有限公司 | Welding device and repair process for inner hole wear surface of upper cross beam of large hydraulic press |
| CN111250824B (en) * | 2020-03-30 | 2024-01-26 | 安徽马钢设备检修有限公司 | Repairing process for inner hole wear surface of upper beam of large hydraulic press |
| CN112407346A (en) * | 2020-11-12 | 2021-02-26 | 中国空间技术研究院 | Thermal test method and device for metal fiber surface combustion structure |
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