CN2436262Y - Heater large steel container welding - Google Patents
Heater large steel container welding Download PDFInfo
- Publication number
- CN2436262Y CN2436262Y CN 00221598 CN00221598U CN2436262Y CN 2436262 Y CN2436262 Y CN 2436262Y CN 00221598 CN00221598 CN 00221598 CN 00221598 U CN00221598 U CN 00221598U CN 2436262 Y CN2436262 Y CN 2436262Y
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- China
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- utility
- model
- steel container
- way nozzle
- large steel
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- Expired - Fee Related
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Abstract
The utility model relates to a heater for large steel container seam weld. An air distribution tube which is bent into an arc shape is provided with a plurality of four-way nozzle holders at intervals; nozzles are respectively arranged on one end of each four-way nozzle holder according to the need of the inside and the outside heating of the container, and the other end of each four-way nozzle holder is plugged by a nut plug. The whole air distribution tube is provided with at least one air inlet hose joint, which is convenient for ventilation and heating. The utility model adopts liquefied petroleum gas as fuel for preheating and postheating, so the utility model has the advantages of short heating time, thorough combustion, no abnormal phenomena, such as carbon deposition, tempering, blowing off, yellow flame, etc. The utility model also has the advantages of self-controlling ignition, light weight, simple structure, convenient installation, and convenient operation. The utility model brings convenience for site operation.
Description
The utility model relates to the heater that is used for large steel container weld seam, promptly a kind of heater that is used for steel vessel installation and manufacturing engineering.
The large steel container generally adopts the bigger low-alloy steel material of thickness to make, it is installed and manufacture process is subjected to the influence of environment temperature very big, because heat affected area and weld seam temperature are lower, if directly welding, postwelding welding point cooling velocity is very fast, high-temperature residence time is shorter, metal inside crystalline structure performance is inhomogeneous, easily forms the big tissue of overworked hard tendency, causes weld seam to produce cold crack, have a strong impact on the welding quality of welded part, so need carry out preheating before the weldering, postwelding need carry out dehydrogenation heat treatment, general preheat temperature is 100～150 ℃, the dehydrogenation heat treatment temperature is 250～350 ℃, and keeps constant temperature 0.5～1h.At present domestic preheating mainly is to adopt the resistive band heating to the large steel container, though this mode also can guarantee homogeneous heating, cleaning, it is big to exist material usage, 0 power consumption is big, problems such as quantities is big, and heat time heating time is long, heating and after heat dehydrogenation thermal effectiveness are not ideal.With the spherical storage tank installing engineering is example: the single Commonly Used Size of resistive band is: long 80 centimetres, wide 30 centimetres, thickness is 3～5 centimetres, satisfy the whole welding of spherical tank, and ampoule is between 80～150; Once weld the preheating power consumption between 64～120 kilowatts, also must note the three-phase electricity equilibrium problem simultaneously; Need the resistive band heat block of 80～150 (every heavy 4 minutes jin) be evenly distributed on the required welding bead, its heat time heating time is very long, and the practice of construction progress is slower, not only labor intensive but also expend material resources.
The purpose of this utility model provides a kind of homogeneous heating, and features simple structure can be saved material, the time saving and energy saving again heater that is used for large steel container weld seam.
The utility model is used for the heater of large steel container weld seam, it comprises several nozzles, gas-distribution pipe, the employing liquefied petroleum gas acts as a fuel, and described gas-distribution pipe is bent into arc, is arranged at intervals with the four-way nozzle block on it, nozzle is located at respectively on each four-way nozzle block, nozzle is other to be provided with igniter, and arc gas-distribution pipe one end is provided with the nut plug, and the other end is provided with the lengthening coupling head.The other end that is arranged on the nozzle on the four-way nozzle block is provided with plug screw, and is provided with an air induction hose joint at least.
The utility model is used for the heater of large steel container weld seam, the interval is provided with several four-way nozzle blocks on the gas-distribution pipe of arc bending to, according to needs to heating inside and outside the container, nozzle is placed an end of four-way nozzle block, and the other end is sealed with nut person head, and an air induction hose joint is set on the whole gas-distribution pipe at least, so that ventilation heating, compared with prior art, owing to carry out preheating and after heat with liquefied petroleum gas as fuel, its heat time heating time is short, sufficient combustion, no carbon deposit, tempering, take off bad phenomenon such as fire and Huang Yan, and the energy automatically-controlled ignition, in light weight, simple in structure, fitting operation is easy to use, is convenient to site operation, has practicality widely.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model is used for the heater of large steel container weld seam, it is mainly by nozzle (1), gas-distribution pipe (5), four-way nozzle block (3), plug screw (4), distribution hose coupling (6) is formed, gas-distribution pipe (5) is bent into arc, arc is corresponding with the cambered surface of steel vessel weld seam, as required, go up the interval at arc gas-distribution pipe (5) several four-way nozzle blocks (3) are set, nozzle (1) is installed in an end of each four-way nozzle block (3) respectively, the other end of the nozzle (1) on the four-way nozzle block (3) is sealed with plug screw (4), wherein on four-way spray seat a hose coupling (6) is set at least.When needing the welding butt welded seam to heat, according to the working condition needs, nozzle (1) is installed in cambered surface one end of gas-distribution pipe.Nozzle (1) is other to be equipped with igniter (8), and arc gas-distribution pipe (5) one ends are provided with nut plug (2), and the other end is provided with and adds and coupling head (7).During work, act as a fuel with liquefied petroleum gas, liquefied gas is introduced the distribution hose coupling, liquefied gas is full of gas-distribution pipe very soon and goes into ejection in the nozzle (1) along four-way nozzle block (3), with igniter (8) igniting, promptly starts working.
Claims (2)
1. heater that is used for large steel container weld seam, it comprises several nozzles (1), gas-distribution pipe (5), it is characterized in that: described gas-distribution pipe (5) is bent into arc, be arranged at intervals with four-way nozzle block (3) on it, nozzle (1) is located at respectively on each four-way nozzle block (3), the other igniter (8) that is provided with of nozzle (1), arc gas-distribution pipe (5) one ends are provided with nut plug (2), and the other end is provided with lengthening coupling head (7).
2. the heater that is used for large steel container weld seam according to claim 1 is characterized in that: the described other end that is arranged on the nozzle (1) on the four-way nozzle block (3) is provided with plug screw (4), and is provided with an air induction hose joint (6) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221598 CN2436262Y (en) | 2000-08-29 | 2000-08-29 | Heater large steel container welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221598 CN2436262Y (en) | 2000-08-29 | 2000-08-29 | Heater large steel container welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436262Y true CN2436262Y (en) | 2001-06-27 |
Family
ID=33586468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00221598 Expired - Fee Related CN2436262Y (en) | 2000-08-29 | 2000-08-29 | Heater large steel container welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436262Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699589A (en) * | 2012-07-05 | 2012-10-03 | 南通中远船务工程有限公司 | Preheating welding device for circular pile leg of wind power installation vessel and preheating welding method thereof |
| CN102699580A (en) * | 2012-01-20 | 2012-10-03 | 江苏普格机械有限公司 | Barrel preheating device |
| CN102728973A (en) * | 2012-06-19 | 2012-10-17 | 无锡市优耐特石化装备有限公司 | Welding preheating device |
| CN111761260A (en) * | 2020-06-10 | 2020-10-13 | 湖南顶立科技有限公司 | Heating device for spherical shell |
-
2000
- 2000-08-29 CN CN 00221598 patent/CN2436262Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699580A (en) * | 2012-01-20 | 2012-10-03 | 江苏普格机械有限公司 | Barrel preheating device |
| CN102728973A (en) * | 2012-06-19 | 2012-10-17 | 无锡市优耐特石化装备有限公司 | Welding preheating device |
| CN102699589A (en) * | 2012-07-05 | 2012-10-03 | 南通中远船务工程有限公司 | Preheating welding device for circular pile leg of wind power installation vessel and preheating welding method thereof |
| CN111761260A (en) * | 2020-06-10 | 2020-10-13 | 湖南顶立科技有限公司 | Heating device for spherical shell |
| CN111761260B (en) * | 2020-06-10 | 2022-02-11 | 湖南顶立科技有限公司 | Heating device for spherical shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |