CN208528370U - A kind of heating device for product weld preheating - Google Patents
A kind of heating device for product weld preheating Download PDFInfo
- Publication number
- CN208528370U CN208528370U CN201821294327.4U CN201821294327U CN208528370U CN 208528370 U CN208528370 U CN 208528370U CN 201821294327 U CN201821294327 U CN 201821294327U CN 208528370 U CN208528370 U CN 208528370U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- sleeve
- cylindrical section
- sealing
- pipe
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000002737 fuel gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003738 black carbon Substances 0.000 description 2
- 150000001722 carbon compounds Chemical class 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
一种用于产品焊前预热的加热装置，它涉及机械制造技术领域，以解决现有焊前预热装置存在火焰加热面积小，热量不集中，能耗大，加热不均匀，效率不高，达不到预期的加热效果的问题。本实用新型包括气嘴、密封管和N个喷嘴；密封管上加工有N个与喷嘴连通的孔，密封管上还加工有进气孔，进气孔上设有气嘴；每个喷嘴由第一圆柱段、第二圆柱段和圆锥段组成；第一圆柱段的直径比第二圆柱段的直径大，每个喷嘴的中心加工有贯通第一圆柱段、第二圆柱段和圆锥段的中空腔，中空腔的轮廓与喷嘴外部轮廓相同，喷嘴的圆锥段的表面加工有M个进风孔；每个喷嘴上第二圆柱段的端面焊接在密封管的每个孔的位置。本实用新型适用于产品焊前的预热。
A heating device for preheating products before welding, which relates to the technical field of machinery manufacturing, to solve the problems of the existing preheating device before welding that the flame heating area is small, the heat is not concentrated, the energy consumption is large, the heating is uneven, and the efficiency is not high. , the problem of not reaching the expected heating effect. The utility model comprises a gas nozzle, a sealing pipe and N nozzles; the sealing pipe is machined with N holes communicating with the nozzles, the sealing pipe is also provided with air inlet holes, and the air inlet holes are provided with gas nozzles; each nozzle is formed by The first cylindrical section, the second cylindrical section and the conical section are composed; the diameter of the first cylindrical section is larger than the diameter of the second cylindrical section, and the center of each nozzle is machined with a nozzle penetrating the first cylindrical section, the second cylindrical section and the conical section. A hollow cavity, the contour of the hollow cavity is the same as the outer contour of the nozzle, the surface of the conical section of the nozzle is machined with M air inlet holes; the end face of the second cylindrical section on each nozzle is welded at the position of each hole of the sealing tube. The utility model is suitable for preheating products before welding.
Description
Technical field
The present invention relates to machinery manufacturing technology fields, and in particular to a kind of heating device.
Background technique
In the production of heavy industry, drum, header, container need to preheat before welding mostly, and preheating is made using fuel gas
For heat medium, natural gas line is connected using the hose of incombustible material.The other end of hose connects a steel pipe, natural gas from
The other end of steel pipe sprays natural gas, lights natural gas and heats to the welding region of metal, and METAL HEATING PROCESS temperature to 50~
250 DEG C are differed, and burned flame plays pendulum, and flame is not straight and upright enough, and heating surface (area) (HS is small, limits to very much, is heated position metal watch
Face has one layer of black carbon compound, and heating temperature is higher, and the heating time used is longer, and heat losses are more, inefficient.In reality
About 10 meters of header average length or so in the production of border, drum and container average diameter about 3m or so, product structure is complicated and again
It is big and long, heating effect obviously cannot be reached using original single heating mode, entirety reaches heating effect and can only adopt if thinking
Whole heating is carried out with heat treatment gas furnace, will result in production cost substantial increase in this way.
In conclusion existing weld preheating device is the problem is that flame heating surface (area) (HS is small, heat is not concentrated, energy consumption
Greatly, heating is uneven, inefficient, and expected heating effect is not achieved.
Summary of the invention
The present invention in order to solve existing weld preheating device there are flame heating surface (area) (HS is small, do not concentrate, and energy consumption is high, adds by heat
The problem of heat is uneven, inefficient, and expected heating effect is not achieved, and a kind of heating for product weld preheating is provided
Device.
The technical solution adopted by the present invention to solve the above technical problem is:
It includes gas nozzle, seal pipe and N number of nozzle, and N >=5, N are positive integer；
It is machined with N number of hole being connected to nozzle in seal pipe, air inlet is also machined in seal pipe, air inlet is equipped with gas
Mouth；
Each nozzle is made of the first cylindrical section, the second cylindrical section and conical section；
The diameter of first cylindrical section is bigger than the diameter of the second cylindrical section, and the center of each nozzle is machined with the first cylinder of perforation
Section, the hollow cavity of the second cylindrical section and conical section, the profile of hollow cavity is identical as nozzle exterior profile, the table of the conical section of nozzle
Face is machined with M air inlet hole, and M >=4, M are integer；
The end face of the second cylindrical section is welded on the position in each hole of seal pipe on each nozzle.
Compared with the prior art, the invention has the following beneficial effects:
One, gas nozzle is arranged in the utility model, and fuel gas enters from gas nozzle, sprays from multiple nozzles, have on nozzle M into
Air holes makes fuel gas be mixed into certain air, keeps burning more abundant, heats to workpiece, improves single-nozzle burning
When the heat that generates, the lesser entrance in fuel gas cross section out of hollow cavity sprays to the biggish outlet in cross section, makes flammable
Gaseous diffusion combustion increases the pre- heat area of single-nozzle burning, and multiple nozzles is arranged in seal pipe, increases heating surface (area) (HS,
The efficiency for improving heating shortens the preheating time of workpiece, and so as to avoid original method flame heating surface (area) (HS, small, heat is not
It concentrates, energy consumption is high, heats the problem of the problems such as uneven, inefficient.
Two, multiple air inlet holes are arranged on the utility model nozzle is sufficiently mixed oxygen and fuel gas, fuel gas combustion
Burning is more abundant, and heating location metal surface is made not have black carbon compound.
Three, the utility model structure is simple, can be adjusted the quantity of pipe length and nozzle according to production needs, thus
Reach the maximization of heating efficiency.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention when seal pipe 2 is linear；
Fig. 2 is the main view of nozzle 3；
Fig. 3 is the side view of nozzle 3；
Fig. 4 is the schematic diagram of bracket 4；
Fig. 5 is the A-A cross-sectional view of Fig. 4；
Fig. 6 is schematic diagram of the present invention when seal pipe 2 is double circular ring shapes；
Fig. 7 is the top view of Fig. 6；
Fig. 8 is the present invention when seal pipe 2 is arc-shaped schematic diagram；
Fig. 9 is the schematic diagram of lifting regulating mechanism 8.
Specific embodiment
Specific embodiment 1: illustrate present embodiment in conjunction with Fig. 1-Fig. 3, present embodiment it include gas nozzle 1, sealing
Pipe 2 and N number of nozzle 3, N >=5, N are positive integer；
It is machined with N number of hole being connected to nozzle 3 in seal pipe 2, air inlet is also machined in seal pipe 2, is set on air inlet
There is gas nozzle 1；
Each nozzle 3 is made of the first cylindrical section 3-1, the second cylindrical section 3-2 and conical section 3-3；
The diameter of first cylindrical section 3-1 is bigger than the diameter of the second cylindrical section 3-2, and the center of each nozzle 3 is machined with perforation
Outside the profile and nozzle 3 of the hollow cavity 3-4 of first cylindrical section 3-1, the second cylindrical section 3-2 and conical section 3-3, hollow cavity 3-4
Profile is identical, and it is integer that the surface of the conical section 3-3 of nozzle 3, which is machined with M air inlet hole 3-5, M >=4, M,；
The end face of second cylindrical section 3-2 is welded on the position in each hole of seal pipe 2 on each nozzle 3.
Specific embodiment 2: illustrate present embodiment in conjunction with Fig. 1, Fig. 6 and Fig. 8, seal pipe 2 described in present embodiment
For linear, double circular ring shapes or one of arc-shaped.
Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment in conjunction with Fig. 1, Fig. 4 and Fig. 5, present embodiment works as the sealing
When pipe 2 is linear, the hole in seal pipe 2 is equidistant and direction identical set, sets that there are two brackets 4 in seal pipe 2；
Each bracket 4 includes first base 4-1, first handle 4-2, first sleeve 4-3, conduit saddle 4-4 and column 4-5；
Column 4-5 is fixed on first base 4-1, and first sleeve 4-3, the side of first sleeve 4-3 are set on column 4-5
Face is threaded hole, and threaded hole is equipped with first handle 4-2, is connected with conduit saddle 4-4 on first sleeve 4-3；
Seal pipe 2 is arranged on the conduit saddle 4-4 of two brackets 4.
The height for adjusting first sleeve 4-3 makes the nozzle 3 in seal pipe 2 apart from heated work pieces to be added to suitable position, and leads to
Overregulating first handle 4-2 holds out against the end of first handle 4-2 screw rod on column 4-5, then by the fuel gas on nozzle 3
It lights and workpiece is heated.
Present embodiment is suitable for the weld preheating that weld seam is linear.
Other compositions and connection relationship are identical with embodiment two.
Specific embodiment 4: illustrating present embodiment in conjunction with Fig. 6 and Fig. 7, present embodiment is when the seal pipe 2
When double circular ring shapes, the nozzle 3 in the seal pipe 2 of double circular ring shapes is upwardly disposed, the interior endless tube of the seal pipe 2 of double circular ring shapes and outer
It is connected with connecting plate 5 between endless tube, has been respectively communicated with standpipe 6 on the interior endless tube and outer endless tube of 2 side of seal pipe of double circular ring shapes,
Two standpipes 6 are connected to transverse tube 7, and 7 one end of transverse tube is welded with plug, and the other end of transverse tube 7 is connected with gas nozzle 1.
Present embodiment is suitable for the weld preheating of forging.
Other compositions and connection relationship are identical with embodiment two.
Specific embodiment 5: illustrating present embodiment in conjunction with Fig. 8, present embodiment is circular arc when the seal pipe 2
When shape, nozzle 3 in the seal pipe 2 is towards the center of circle of circular arc, and affixed in the seal pipe 2 there are two the liters being arranged in juxtaposition
Regulating mechanism 8 drops.
It is the preheating before annular workpiece weldering that present embodiment, which is suitable for weld seam,.
Other compositions and connection relationship are identical with embodiment two.
Specific embodiment 6: illustrate present embodiment in conjunction with Fig. 8 and Fig. 9, each rising-falling tone of present embodiment
Saving mechanism 8 includes second handle 8-1, adjusting rod 8-2, second sleeve 8-3 and second base 8-4；
Second sleeve 8-3 is connected on second base 8-4, second sleeve 8-3 is arranged vertically, is equipped in second sleeve 8-3
Adjusting rod 8-2, and adjusting rod 8-2 can be moved up and down in second sleeve 8-3, adjusting rod 8-2 are fixed in arc-shaped described close
On tube sealing 2, the side of second sleeve 8-3 is machined with the first threaded hole, is equipped with second handle 8-1 in the first threaded hole.
Adjusting rod 8-2 is slided in second sleeve 8-3 to adjust the height of arc-shaped seal pipe 2, is adjusted to suitable high
Degree presses closer the end of the screw rod on second handle 8-1 on adjusting rod 8-2, keeps seal pipe 2 fixed, lights the flammable of nozzle 3
Gas heats workpiece 9.
Other compositions and connection relationship are identical as specific embodiment five.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821294327.4U CN208528370U (en) | 2018-08-09 | 2018-08-09 | A kind of heating device for product weld preheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821294327.4U CN208528370U (en) | 2018-08-09 | 2018-08-09 | A kind of heating device for product weld preheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208528370U true CN208528370U (en) | 2019-02-22 |
Family
ID=65378167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821294327.4U Active CN208528370U (en) | 2018-08-09 | 2018-08-09 | A kind of heating device for product weld preheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208528370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655626A (en) * | 2018-08-09 | 2018-10-16 | 哈尔滨哈锅锅炉容器工程有限责任公司 | A kind of heating device for product weld preheating |
| CN109681713A (en) * | 2019-03-01 | 2019-04-26 | 重庆科技学院 | Heating device is used in the in-service welding of oil gas transport oil-gas pipeline |
-
2018
- 2018-08-09 CN CN201821294327.4U patent/CN208528370U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655626A (en) * | 2018-08-09 | 2018-10-16 | 哈尔滨哈锅锅炉容器工程有限责任公司 | A kind of heating device for product weld preheating |
| CN109681713A (en) * | 2019-03-01 | 2019-04-26 | 重庆科技学院 | Heating device is used in the in-service welding of oil gas transport oil-gas pipeline |
| CN109681713B (en) * | 2019-03-01 | 2020-11-06 | 重庆科技学院 | Heating device for in-service welding of oil and gas transportation oil and gas pipelines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108655626A (en) | A kind of heating device for product weld preheating | |
| CN205702952U (en) | Flame preheating device before the weldering of a kind of thick-walled pressure vessel cylinder | |
| CN208528370U (en) | A kind of heating device for product weld preheating | |
| CN204999942U (en) | Major diameter barrel circumferential weld preheating device | |
| US20240173788A1 (en) | Method and automatic brazing apparatus for flame brazing control in copper-aluminum welding | |
| CN206662501U (en) | A kind of device for being used to eliminate hot-spot effect during pipeline welding | |
| CN212315927U (en) | Blast burner and polishing device in quartz tube | |
| CN203687034U (en) | Ignition burner with automatic ignition and flame detection functions | |
| CN205024174U (en) | Water leg shell type thermal stress self -interacting coal slurry process burner | |
| CN204544177U (en) | A kind of novel high-efficiency and energy-saving spiral half-pipe jacket glass-lined equipment | |
| CN206438039U (en) | Heavy caliber quartz ampoule expander process units for lamp work lathe | |
| CN204209270U (en) | A kind of Flame Heating Temperature compensator for the long weld seam welding of steel plate | |
| CN211680455U (en) | Heating device for build-up welding of inner wall of seal head | |
| CN212443860U (en) | A mobile argon gas chamber equipment | |
| CN208166943U (en) | A kind of coal gasification burner airflow uniform distribution device | |
| CN209974624U (en) | A high-efficient awl device that draws for jumbo size optical fiber perform | |
| CN219746714U (en) | Double-row adjustable preheating device | |
| CN211759368U (en) | Welding preheating device | |
| CN201903055U (en) | Grate for production of gas-mixture carbon black | |
| CN112010543A (en) | Blast burner and polishing device in quartz tube | |
| CN219189083U (en) | Preheating device for header pipe seat welding | |
| CN207999810U (en) | A kind of bushing type blast orifice oxygen burner | |
| CN114734129B (en) | A device for preheating before welding and slow cooling after welding for arc welding | |
| CN212793673U (en) | Circumferential weld heating device for welding pressure vessel | |
| CN220892241U (en) | Welding gun capable of improving flame intensity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A heating device for preheating products before welding Effective date of registration: 20231219 Granted publication date: 20190222 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: HARBIN HAGUO BOILER ENGINEERING TECHNOLOGY CO.,LTD. Registration number: Y2023230000109 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190222 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: HARBIN HAGUO BOILER ENGINEERING TECHNOLOGY CO.,LTD. Registration number: Y2023230000109 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.239, Xusheng street, Xiangfang District, Harbin City, Heilongjiang Province Patentee after: Harbin Xintang Boiler Container Engineering Co.,Ltd. Country or region after: China Address before: No.239, Xusheng street, Xiangfang District, Harbin City, Heilongjiang Province Patentee before: HARBIN HAGUO BOILER ENGINEERING TECHNOLOGY CO.,LTD. Country or region before: China |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A heating device used for preheating products before welding Granted publication date: 20190222 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Xintang Boiler Container Engineering Co.,Ltd. Registration number: Y2024230000080 |