CN208528370U - A kind of heating device for product weld preheating - Google Patents
A kind of heating device for product weld preheating Download PDFInfo
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- 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
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- nozzle
- seal pipe
- cylindrical section
- sleeve
- machined
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 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
- 238000005516 engineering process Methods 0.000 abstract description 2
- 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
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 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
- 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
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- Gas Burners (AREA)
Abstract
The problem of a kind of heating device for product weld preheating, it is related to machinery manufacturing technology field, and to solve existing weld preheating device there are flame heating surface (area) (HS is small, heat is not concentrated, and energy consumption is high, and heating is uneven, inefficient, and expected heating effect is not achieved.The utility model includes gas nozzle, seal pipe and N number of nozzle；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 nozzle；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, the center of each nozzle is machined with the hollow cavity of the first cylindrical section of perforation, the second cylindrical section and conical section, the profile of hollow cavity is identical as nozzle exterior profile, and the surface of the conical section of nozzle is machined with M air inlet hole；The end face of the second cylindrical section is welded on the position in each hole of seal pipe on each nozzle.The utility model is suitable for the preheating before product weldering.
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)
1. a kind of heating device for product weld preheating, it is characterised in that: it includes gas nozzle (1), seal 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), is also machined with air inlet in seal pipe (2), on air inlet
Equipped with 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), which is machined with, to be passed through
The hollow cavity (3-4) of logical first cylindrical section (3-1), the second cylindrical section (3-2) and conical section (3-3), the profile of hollow cavity (3-4)
Identical as nozzle (3) exterior contour, the surface of the conical section (3-3) of nozzle (3) is machined with M air inlet hole (3-5), and M >=4, M are
Integer；
The end face of the second cylindrical section (3-2) is welded on the position in each hole of seal pipe (2) on each nozzle (3).
2. a kind of heating device for product weld preheating according to claim 1, it is characterised in that: the seal pipe
It (2) is linear, double circular ring shapes or one of arc-shaped.
3. a kind of heating device for product weld preheating according to claim 2, it is characterised in that: when the sealing
When to manage (2) be linear, the hole in seal pipe (2) is equidistant and direction identical set, sets that there are two brackets in seal pipe (2)
(4)；
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), first sleeve (4- are set on column (4-5)
3) side is threaded hole, and threaded hole is equipped with first handle (4-2), is connected with conduit saddle (4- in first sleeve (4-3)
4)；
Seal pipe (2) is arranged on the conduit saddle (4-4) of two brackets (4).
4. a kind of heating device for product weld preheating according to claim 2, it is characterised in that: when the sealing
When pipe (2) is double circular ring shapes, the nozzle (3) in the seal pipe (2) of double circular ring shapes is upwardly disposed, the seal pipe of double circular ring shapes
(2) it is connected with connecting plate (5) between interior endless tube and outer endless tube, the interior endless tube and outer ring of seal pipe (2) side of double circular ring shapes
It has been respectively communicated on pipe standpipe (6), two standpipes (6) are connected to transverse tube (7), and transverse tube (7) one end is welded with plug, transverse tube (7)
The other end be connected with gas nozzle (1).
5. a kind of heating device for product weld preheating according to claim 2, it is characterised in that: when the sealing
When to manage (2) be arc-shaped, nozzle (3) on the seal pipe (2) is affixed on the seal pipe (2) towards the center of circle of circular arc
There are two the lifting regulating mechanisms (8) being arranged in juxtaposition.
6. a kind of heating device for product weld preheating according to claim 5, it is characterised in that: each liter
Dropping regulating mechanism (8) includes second handle (8-1), adjusting rod (8-2), second sleeve (8-3) and second base (8-4)；
It is connected in second base (8-4) second sleeve (8-3), second sleeve (8-3) is arranged vertically, in second sleeve (8-3)
Equipped with adjusting rod (8-2), and adjusting rod (8-2) can move up and down in second sleeve (8-3), and adjusting rod (8-2) is fixed in circle
In the seal pipe (2) of arc, the side of second sleeve (8-3) is machined with the first threaded hole, and the is equipped in the first threaded hole
Two handles (8-1).
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 pipeline |
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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 |
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 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |