CN204621402U - Reverse flame heating device - Google Patents
Reverse flame heating device Download PDFInfo
- Publication number
- CN204621402U CN204621402U CN201520261276.5U CN201520261276U CN204621402U CN 204621402 U CN204621402 U CN 204621402U CN 201520261276 U CN201520261276 U CN 201520261276U CN 204621402 U CN204621402 U CN 204621402U
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- CN
- China
- Prior art keywords
- air inlet
- inlet tube
- shower nozzle
- flame
- heating device
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to drum tube joint flame technical field of heating, be specially a kind of oppositely flame heating device, its structure is simple, easy to operate, can ensure that commissure temperature puts in place, improve weldquality, it comprises air inlet tube, described air inlet tube one end connects heater shower nozzle, described heater shower nozzle comprises the shower nozzle case being communicated with described air inlet tube, the back taper back-up ring being fixed on described shower nozzle case is installed around described air inlet tube, the described shower nozzle case outside described back taper back-up ring has flame through hole.
Description
Technical field
The utility model relates to drum tube joint flame technical field of heating, is specially a kind of oppositely flame heating device.
Background technology
When manufacturing drum welded stub connection, owing to needing preheating before welding, postwelding needs insulation, all need to heat, employing in the past be external flame heating process, commissure external temperature can only be measured during temperature survey whether put in place, experience can only be relied on for commissure internal temperature control, cannot directly measure, therefore pipe joint outside commissure temperature may be caused to put in place, but internal weld seams place temperature does not put in place, weld seam is caused to produce the weld defect such as pore, crackle.
Summary of the invention
In order to solve the problem, the utility model provides a kind of oppositely flame heating device, and its structure is simple, easy to operate, can ensure that commissure temperature puts in place, improves weldquality.
Its technical scheme is such: a kind of oppositely flame heating device, it is characterized in that, it comprises air inlet tube, described air inlet tube one end connects heater shower nozzle, described heater shower nozzle comprises the shower nozzle case being communicated with described air inlet tube, the back taper back-up ring being fixed on described shower nozzle case is installed around described air inlet tube, the described shower nozzle case outside described back taper back-up ring has flame through hole.
It is further characterized in that, described shower nozzle case comprises steel pipe, described steel pipe one end is installed with sealing baffle, the other end is installed with steel plate with holes, described steel plate with holes has the air admission hole coordinated with described air inlet tube, described steel plate with holes has described flame through hole, external stability is provided with described back taper back-up ring;
Described flame through hole comprises multiple and is evenly arranged in outside described back taper back-up ring;
Described air inlet tube is set with sub barrier, and described sub barrier is fixedly installed in described air inlet tube by bolt;
The described air inlet tube other end connects inlet suction port.
After adopting device of the present utility model, fuel gas is passed in air inlet tube, flame is lighted in flame through hole, heating shower nozzle is filled in the drum body tapping needing welding or pipe joint etc., the flame of flame through hole ejection is outwards dispersed along back taper back-up ring, realize heating from inside, outside is welded, only commissure external temperature need be measured during measuring tempeature, can ensure that weld seam inside and body temperature also put in place, avoid outside commissure temperature to put in place, but weld seam is inner and body place temperature does not put in place and causes weld seam to produce pore, the weld defect of crackle etc., improve weldquality, structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is heater nozzle structure enlarged diagram.
Detailed description of the invention
See Fig. 1, shown in Fig. 2, a kind of oppositely flame heating device, it comprises air inlet tube 2, air inlet tube 2 one end connects heater shower nozzle 1, the other end connects inlet suction port 5, fuel gas is passed into from inlet suction port, can adjusting gas flow, heater shower nozzle 1 comprises the shower nozzle case being communicated with air inlet tube 2, shower nozzle case comprises steel pipe 8, steel pipe 8 one end is installed with sealing baffle 7, the other end is installed with steel plate 6 with holes, steel plate 6 with holes has the air admission hole 10 coordinated with air inlet tube, steel plate 6 with holes has flame through hole 11, external stability is provided with back taper back-up ring 9, back taper back-up ring 9 is arranged in around air inlet tube 2, flame through hole 11 comprises six and is evenly arranged in outside back taper back-up ring 9, ensure the even flame sprayed from flame through hole 11, further guarantee weldquality.
Air inlet tube 2 is set with sub barrier 3, sub barrier 3 is fixedly installed in air inlet tube 2 by bolt 4, plays the effect stopping heating flame, uses more safe and reliable.
In the utility model, adopt between steel pipe 8 and sealing baffle 7, steel plate with holes and be welded to connect, steel plate 6 with holes is connected with also adopting spot welding between back taper back-up ring 9.
Claims (5)
1. a reverse flame heating device, it is characterized in that, it comprises air inlet tube, described air inlet tube one end connects heater shower nozzle, described heater shower nozzle comprises the shower nozzle case being communicated with described air inlet tube, the back taper back-up ring being fixed on described shower nozzle case is installed around described air inlet tube, the described shower nozzle case outside described back taper back-up ring has flame through hole.
2. the reverse flame heating device of one according to claim 1, it is characterized in that, described shower nozzle case comprises steel pipe, described steel pipe one end is installed with sealing baffle, the other end is installed with steel plate with holes, described steel plate with holes has the air admission hole coordinated with described air inlet tube, described steel plate with holes has described flame through hole, external stability is provided with described back taper back-up ring.
3. the reverse flame heating device of one according to claim 1, is characterized in that, described flame through hole comprises multiple and is evenly arranged in outside described back taper back-up ring.
4. the reverse flame heating device of one according to claim 1, is characterized in that, described air inlet tube is set with sub barrier, and described sub barrier is fixedly installed in described air inlet tube by bolt.
5. the reverse flame heating device of one according to claim 1, is characterized in that, the described air inlet tube other end connects inlet suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261276.5U CN204621402U (en) | 2015-04-28 | 2015-04-28 | Reverse flame heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261276.5U CN204621402U (en) | 2015-04-28 | 2015-04-28 | Reverse flame heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204621402U true CN204621402U (en) | 2015-09-09 |
Family
ID=54040463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520261276.5U Withdrawn - After Issue CN204621402U (en) | 2015-04-28 | 2015-04-28 | Reverse flame heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204621402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485685A (en) * | 2015-04-28 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Reverse flame heating device |
-
2015
- 2015-04-28 CN CN201520261276.5U patent/CN204621402U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485685A (en) * | 2015-04-28 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Reverse flame heating device |
| CN105485685B (en) * | 2015-04-28 | 2018-02-23 | 无锡华光锅炉股份有限公司 | A kind of reverse flame heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20180223 |
|
| AV01 | Patent right actively abandoned |