CN203872376U - Pipeline welded joint heating equipment - Google Patents
Pipeline welded joint heating equipment Download PDFInfo
- Publication number
- CN203872376U CN203872376U CN201420307608.4U CN201420307608U CN203872376U CN 203872376 U CN203872376 U CN 203872376U CN 201420307608 U CN201420307608 U CN 201420307608U CN 203872376 U CN203872376 U CN 203872376U
- Authority
- CN
- China
- Prior art keywords
- welded joint
- temperature
- calandria
- heating equipment
- steel band
- 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.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000741 silica gel Substances 0.000 claims description 12
- 229910002027 silica gel Inorganic materials 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 4
- 229910001120 nichrome Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to pipeline welded joint heating equipment which comprises a heating body, a high temperature resistant layer arranged on the outside of the heating body and a steel band arranged on the outside of the high temperature resistant layer. The heating body, the high temperature resistant layer and the steel band are arranged as an integrated single-opening structure, two ends of which are provided with connection structures. The pipeline welded joint heating equipment is convenient to operate, has a better effect of preheating and continuously heating a pipeline welded joint and its nearby areas, is suitable for field construction operations, and is convenient to carry.
Description
Technical field
A kind of equipment that pipeline welded joint is carried out to preheating and continuous heating, the method of docking weld bond and needing welding process to heat for petroleum gas, chemical industry, coal electricity, nuclear industry, the long distance pipeline in city heat supply field, plant stand process pipe, city gas pipeline, belongs to pipeline construction Site Welding supporting technology field.
Background technology
Carrying out high strength steel, high-temperature steel, low-temperature steel, steel alloy or containing H
2in tube and tube when welding docking of the carbon steel piping of S medium, all require near the pipeline in certain area coverage Welded Joints to carry out preheating, and in welding process, require near temperature welding point to keep being not less than the temperature of preheating.
Existing have three kinds to above-mentioned pipeline heating technology:
The one, use oil liquefied gas or Flame of Natural Gas heating, when reaching after set point of temperature, stop heating.Its major defect is to stop after heating, and welding point and near metal thereof are thereupon cooling, can not continue constant temperature.
The 2nd, use crawler belt or rope belt type ceramic resistor silk firing equipment, when reaching after set point of temperature, sustainable heating, keeps weld bond temperature to be not less than set point of temperature.Its feature mainly contains that equipment heaviness, power consumption are large, price is higher, and these three features are unfavorable for that field spread uses.
The 3rd, use the charged induction heating equipment of flexible glue, when reaching after set point of temperature, sustainable heating, keeps weld bond temperature to be not less than set point of temperature.Its feature mainly contains that equipment heaviness, power consumption are large, price is high, and these features are unfavorable for that field spread uses; Respond in addition thick (diameter 25 ~ 45mm) of adhesive tape, stop the space that welder operates.
Above three kinds of methods are mainly the heating for welding point and near zone thereof.Easily realize for factory work by these three kinds of methods, and for outdoor, field work, particularly pipeline, large-scale plant stand construction, due to the reason such as cost, supply of electric power, can not be popularized in an all-round way for above three kinds.
In prior art, for the heating in tank bucket, tower, groove pond, mix the auxiliary heating of the equipment such as heat and insulation, compressor of air conditioner, motor, immersible pump, and medical equipment heater, a kind of novel heating means are used, the method is: nichrome wire is as heater, and silica gel and alkali-free glass fibre be as the insulator of conductor, and is pressed into a soft calandria, bandwidth 60 ~ 150mm, thickness 1 ~ 2mm.In calandria, be accompanied with the thermocouple that thermometric is used.Calandria attaches volume outward 1 ~ 2 × 10
6mm
3between temperature controller.Temperature controller has heating control line to be connected with calandria.Every calandria power, can preheating and continuous heating between 600 ~ 5000W, lower in cost and power consumption.
Existing patent CN200410016569.3, a kind of pipeline crater heating device is disclosed, comprise an electric heating body, be provided with interconnective calandria latching device at the two ends of electric heating body, be provided with Stainless Steel heating cable in electric heating body, one end of electric heating body is connected with external cable.Although this invention energy water back welding point, there is following shortcoming in this invention:
One. without temperature controller, temperature can not realize Based Intelligent Control;
Two. stainless steel is as heater, and its fusing point is lower, affects useful life;
Three. high-temperature-resistant layer is that alumina silicate fibre is made, and exposes outside, and easy soldered electric arc burns out, and reduces useful life.
Four. this invention working lining is the stainless steel band that is shutter shape being in series by stainless steel substrates, and it is combined with high-temperature-resistant layer is not integral type device, causes a large amount of uses of this invention or field to use very inconvenient, easily damages.
Existing patent CN201020621350.7, a kind of pipeline heater is disclosed, two ring bodies identical by structure form, each ring bodies is made up of two semi-circular ring of splitting, each semi-circular ring is provided with shell and the inner casing be made up of refractory metal plate, is provided with successively from inside to outside immerging metal tube heater layer and thermal insulation separation thermosphere between inside and outside shell.Although this invention has realized the heating to pipeline welded joint, but still there is following shortcoming:
One. this patent will heat a welding point and need be assembled by the heating collar of 4 semicircles, at least has 4 groups of feed cables, and cable is more, seems very mixed and disorderly at welding point place.
Two. this patent has been described temperature sensor, but the uncontrollable heating starting of temperature sensor and stopping.
Summary of the invention
The purpose of this utility model is to provide a kind of pipeline welded joint heating equipment, adopts the utility model can realize pipeline welded joint and near preheating and continuous heating, and spread in can constructing in the wild.
A pipeline welded joint heating equipment, comprises the high-temperature-resistant layer in calandria, calandria outside, the steel band in high-temperature-resistant layer outside, it is characterized in that: calandria, high-temperature-resistant layer, steel band are integral type single radial cut structure, and its two ends are provided with fastening structure.
Described steel band middle part disconnects, forms two split, semi-circular ring that shape is identical, steel band gap is the bend that heating is equipped.
The disconnecting unit two ends of described steel band are connected by loose-leaf.
Described steel band is groove structure, and groove is inside, and calandria, high-temperature-resistant layer pack in groove.
Described syndeton is fastening device.
Anchoring suspension ring outside described steel band two ends.
Further, calandria connects temperature controller through heating control line.
Described calandria is silica gel heating body.
Described high-temperature-resistant layer is high temperature resistant foamed silica gel cotton.
The utility model has the advantages that:
One. a welding point of conventional heating need be assembled by the heating collar of 4 semicircles, at least has 4 groups of feed cables, and cable is more; The utility model adopts integral type single radial cut circular ring structure, has 2 groups of power supply control cables at welding point place one, is difficult for occurring in disorder phenomenon.
Two. when water back, conventional heating collar needs snapping 4 times,, and the utility model adopts integral type single radial cut circular ring structure, only needs snapping 2 times, convenient installation.
Three. the utility model adopts integral type single radial cut circular ring structure, has reduced the use of production process and material, cost saving.
Four. the utility model steel band bend adopts gemel connection, is conducive to the bending of steel band, calandria, high-temperature-resistant layer, makes it be close to pipeline.
Five. steel band bend disconnects, and is convenient to calandria and the high-temperature-resistant layer parcel to pipeline, is more close to pipeline, increases heating effect.
Six. the utility model adopts grooved steel band, calandria and high-temperature-resistant layer are packed into wherein, with anchoring outside timer suspension ring, be convenient for carrying, be applicable to extensive use and field use.
Seven. the utility model adopts silica gel heating body, and wherein nichrome is calandria material, and fusing point is high, and useful life, reason was long.
Eight. high-temperature-resistant layer of the present utility model is high temperature resistant foamed silica gel cotton, to the better heat preservation of pipeline, realizes welding point and is rapidly heated, the energy-conservation energy.
Nine. temperature controller of the present utility model can realize to calandria automatically switch on heating and power-off stop heating control, saving electric weight, avoid waste.
brief description of the drawings:
Fig. 1 is the utility model generalized section;
Fig. 2 is that the B of accompanying drawing 1 is to groove local structural graph;
Fig. 3 is the present invention's application schematic diagram;
Fig. 4 is that the A of accompanying drawing 3 is to schematic diagram;
Wherein, 1, suspension ring 2, padlock 3, steel band 4, high-temperature-resistant layer 5, calandria 6, heating control line 7, latch hook 8, loose-leaf 9, temperature controller 10, power line 11, groove 12, nichrome wire 13, thermocouple.
embodiment:
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
Because silica gel heating body is by heater, conductor insulation body, the thermocouple 13 that thermometric is used is suppressed the soft calandria forming, and has the testee of making contact good, the effect of homogeneous heating.What simultaneously silica gel heating body adopted is nichrome wire 12 as heater, to have fusing point high, the advantage of long service life; Silica gel and alkali-free glass fibre are as conductor insulation body, and heat resistance is good, and insulation property are reliable.So select silica gel heating body as calandria 5.
At a side bonds high-temperature-resistant layer 4 of calandria 5 for the insulation to heating-up temperature.High-temperature-resistant layer 4 is selected high temperature resistant silicon collodion, the better heat preservation of high temperature resistant silicon collodion to temperature.
A steel band 3 is made into groove 11, groove 11 middle parts is disconnected, be made into two split, semi-circular ring that shape is identical, the disconnecting unit two ends riveted joint loose-leaf 8 of steel band 3, the formula that forms as one single radial cut circular ring structure.
Pack bonding firmly calandria 5 and heat-insulation layer 4 into groove 11, steel band 3 wraps outer surface and the side of high temperature foamed silica gel cotton 4, outside the inner surface of calandria 5 is exposed to, so that calandria 5 can close contact pipelines while using.
At steel band 3 opening part one end riveted joint padlocks 2, other end riveted joint latch hook 7.
Anchoring suspension ring 1 outside steel band 3 two ends.
Calandria 5 connects temperature controller 9 through heating control line 6, can control the temperature of heating.
While application in engineering, while selecting than this invention work, the pipeline welded joint of the large 3 ~ 15mm of circle diameter heats, open integral type single radial cut annulus, be buckled in apart from grooves of welding joints 5 ~ 30mm pipe surface, then the padlock 2 on a semicircle shape is buckled on the latch hook 7 on another semicircle shape, form circular heating equipment, assembling process should ensure calandria 5 and pipeline close contact.At the other end of pipeline welded joint, identical heating equipment is installed by the same way.
Connect the power line 10 of 220V, the maximum temperature of heating be set on temperature controller 9, and by heating control line 6(containing thermocouple feedback line and be heater supply line) heating-up temperature of control calandria 5.Heating equipment starts from preheating can be to pipeline welded joint and near continuous heating thereof, until this joint has welded.
When dismounting, open padlock 2, open annulus, take out from pipeline.
As can be seen here, the beneficial effects of the utility model are: easy for installation, simple to operate; Preheating and heating effect to pipeline are better; Be easy to carry, be applicable to field work.
The present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment is only schematically, is not restrictive.Those of ordinary skill in the art, under enlightenment of the present invention, is not departing from aim of the present invention and claim and protection range situation, can also make the concrete conversion of a lot of forms, and these all belong to protection scope of the present invention.
Claims (9)
1. a pipeline welded joint heating equipment, comprise the high-temperature-resistant layer (4) in calandria (5), calandria outside, the steel band (3) in high-temperature-resistant layer outside, it is characterized in that: calandria (5), high-temperature-resistant layer (4), steel band (3) are integral type single radial cut structure, and its two ends are provided with syndeton.
2. pipeline welded joint as claimed in claim 1 heating equipment, is characterized in that: described steel band (3) middle part disconnects, forms two split, semi-circular ring that shape is identical, steel band (3) gap is the bend that heating is equipped.
3. pipeline welded joint heating equipment as claimed in claim 2, is characterized in that: the disconnecting unit two ends of described steel band (3) are connected by loose-leaf (8).
4. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: described steel band (3) is groove (11) structure, and groove (11) is inside, and calandria (5), high-temperature-resistant layer (4) pack in groove (11).
5. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: described syndeton is fastening device.
6. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: anchoring suspension ring (1) outside described steel band (3) two ends.
7. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: calandria (5) connects temperature controller (9) through heating control line (6).
8. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: described calandria (5) is silica gel heating body.
9. pipeline welded joint heating equipment as claimed in claim 1, is characterized in that: described high-temperature-resistant layer (4) is high temperature resistant foamed silica gel cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307608.4U CN203872376U (en) | 2014-06-11 | 2014-06-11 | Pipeline welded joint heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307608.4U CN203872376U (en) | 2014-06-11 | 2014-06-11 | Pipeline welded joint heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872376U true CN203872376U (en) | 2014-10-08 |
Family
ID=51653293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420307608.4U Expired - Lifetime CN203872376U (en) | 2014-06-11 | 2014-06-11 | Pipeline welded joint heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203872376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987143A (en) * | 2014-06-11 | 2014-08-13 | 四川石油天然气建设工程有限责任公司 | Pipeline welding joint heating equipment and manufacturing method thereof |
-
2014
- 2014-06-11 CN CN201420307608.4U patent/CN203872376U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987143A (en) * | 2014-06-11 | 2014-08-13 | 四川石油天然气建设工程有限责任公司 | Pipeline welding joint heating equipment and manufacturing method thereof |
| CN103987143B (en) * | 2014-06-11 | 2015-10-28 | 四川石油天然气建设工程有限责任公司 | A kind of pipeline welded joint heating equipment and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |