CN202834538U - Electric melting type heat-preservation joint - Google Patents
Electric melting type heat-preservation joint Download PDFInfo
- Publication number
- CN202834538U CN202834538U CN 201220355670 CN201220355670U CN202834538U CN 202834538 U CN202834538 U CN 202834538U CN 201220355670 CN201220355670 CN 201220355670 CN 201220355670 U CN201220355670 U CN 201220355670U CN 202834538 U CN202834538 U CN 202834538U
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- melting
- electric
- thermal insulation
- polyethylene
- joint
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Abstract
The utility model provides an electric melting type heat-preservation joint. The electric melting type heat-preservation joint comprises a sleeve joint body which is sleeved outside two sections of polyethylene outer protective pipes needed to be connected of a heat-preservation pipe. A sleeve joint comprises a hot melting casing pipe, a hot melting control device and a pressurization device, wherein the hot melting control device comprises heating wires arranged at the inner wall of the hot melting casing pipe and a controller. The electric melting type heat-preservation joint has the advantages that polyethylene is melted easily after the heat-preservation joint is charged with electricity, the melting connection is firm, a welding junction is uniform in heat transfer, the connected polyethylene outer protective pipes are high in intensity and good in sealing performance, the problem of leakage is avoided, and the welding junction is high in quality, the operation is simple, the construction is safe, construction cost is lowered, and operation quality is improved.
Description
Technical field
The utility model belongs to the pipe coupling field of thermal insulation, especially relates to the banded collar thermal insulation joint of a kind of hot melten type.
Background technique
Existing pipeline connects electric heating melting formula ferrule-based fittings commonly used, although construction is simple, because its heating of metal silk only is two nickel chrome wire, and arranges so that zigzag fashion is parallel, and bonding plane is little, the inequality of being heated, melting welding effect are bad, easily solder skip.Also have a kind of electric fusion welding formula ferrule-based fittings, need pre-buried vertical heating wire net during use, not only increased cost, and construction is complicated.Above several ferrule-based fittings has air buffer, and difficult fully sticking real, poor air-tightness affects bonding strength, and simultaneously owing to non air exit hole, the gas of heat fused generation can not be discharged, and causes interior expansion, easily collapses out melting welding seam or distortion, affects appearance quality.
The model utility content
Problem to be solved in the utility model provides a kind of electric-melting thermal insulation joint, especially is fit to the high pipe of requirement of strength and connects use.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of electric-melting thermal insulation joint, consist of by being socketed in two sections ferrule-based fittings bodies outside the polyethylene outer protective pipe that needs to connect, described ferrule-based fittings comprises outer sleeve, the hot melt control gear, and be arranged on material hole, exhaust port on the electric heating melting casing wall, and described hot melt control gear is by the electric heating wire that is laid on the described outer sleeve inner wall, and vertically heating wire net and controller consist of.
Further, described electric heating wire is copper wire.
Further, described outer sleeve forms through the embedded extraordinary heating wire net of heat seal with high-quality PE sheet material.
Further, described outer sleeve forms through the embedded extraordinary heating wire net of heat seal with high-quality PE pipe.
The installation method of electric-melting thermal insulation joint: described ferrule-based fittings is socketed on two sections polyethylene external protective tube of thermal-insulation tubes that need to connect, guarantee that electric heating wire places on the outer pillar and with outer pillar overlap joint; With several restraint zones the polyethylene hoop of electric heating wire position, thermal insulation joint two ends and thermal insulation pipe is tightened respectively; Use programming temperature control electric fusing soldering welder to the electric-heating-wire-heating on the described outer sleeve inner wall, temperature strict implement heating curve; After cooling is qualified by air tightness test, the material feeding foaming, the joint insulation is finished.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme, after the energising melting, the silk screen that gathers closely is connected the electric heat welding swagelok with thermal insulation pipe polyethylene (PE) overcoat, form the space of sealing, finish again the whole process of joint insulation by material feeding, exhaust, its melting welding place interface conducts heat evenly, welding is firm, and the polyethylene outer protective pipe bonding strength of connection is high, good airproof performance, avoided leakage problem, the weld bond quality is high, and is simple to operate, construction safety, reduce construction cost, improved operation quality.
Description of drawings
Fig. 1 is structural representation of the present utility model
Among the figure:
1, outer pillar 2, hoop heating wire net 3, outer sleeve
4, material hole 5, exhaust port 6, vertical heating wire net
Embodiment
As shown in Figure 1, the utility model is a kind of electric-melting thermal insulation joint, need the ferrule-based fittings body in polyethylene outer protective pipe 1 outside of connection to consist of by being socketed in two sections, described ferrule-based fittings comprises outer sleeve 3, and outer sleeve is made through the embedded extraordinary heating wire net of heat seal with high-quality PE sheet material or pipe; Hot melt control gear, described hot melt control gear are by the hoop heating wire net 2 who is laid on the described outer sleeve inner wall, and vertically heating wire net 6 and control gear consist of; And the material hole 4 that is arranged on the outer sleeve outer wall.
The outer sleeve outer wall is provided with exhaust port 5, the gas that produces when discharging sweat soldering and material feeding foaming.
Electric fusion welding formula joint technique mainly is to utilize polyethylene hot melt principle, by electric heating melting formula inwall numerical control studding system, the accurate heating wire net of resistance is embedded in polyethylene swagelok internal surface, use programming temperature control electric fusing soldering welder to carry out strict intensification welding curve, the energising heating makes the polyethylene outer protective pipe of hot melt cover and thermal insulation pipe, and the outside applies certain pressure, and it is fused into one, finish the connection of polyethylene outer protective pipe, welding junction place tensile strength is not less than mother metal.
The installation method of electric-melting thermal insulation joint: described electrothermal molten coupler cover is overlapped on two sections polyethylene outer protective pipes that need to connect, guarantee that electric heating wire places on the outer pillar and with outer pillar overlap joint; With several restraint zones the heating wire net position at the thermal insulation joint two ends of electric heating melting cover and the polyethylene coating hoop of thermal insulation pipe are tightened respectively; Use programming temperature control electric fusing soldering welder to the heating of the heating wire net on the described outer sleeve inner wall, temperature strict implement heating curve; After cooling is qualified by air tightness test, the material feeding foaming, the joint insulation is finished.
The main points of electric heat welding head technique:
1. the hot melt cover is positioned in the middle of the interface, guarantees that electric heating wire places on the polyethylene jacket pipe of thermal insulation pipe and with outer sleeve to overlap.
2. after the polyethylene outer protective pipe hoop overlap joint of hot melt sleeve and thermal insulation pipe being finished, pressing plate (can omit this pressing plate during thickness of pipe wall) is placed at the place at hot melt cover longitudinal seam, to guarantee interface lap-joint close contact, with restraint zone the polyethylene jacket pipe hoop that electric heating melting overlaps electric heating wire position, two ends and thermal insulation pipe being tightened respectively.
3. setup parameter, the power-on energising, at this moment form a kind of molten material between electric heating melting cover and the tubing, can interpenetrate between the molecule, spread, so can form a kind of firmly combination after the cooling, electric heating melting technique makes thermal insulation joint have good seal performance, connection part is firm, tensile strength is high, can bear the shearing force of piping design.
Air tightness test qualified after, material feeding foaming, the joint insulation is finished.
Above an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (5)
1. electric-melting thermal insulation joint, consist of by being socketed in two sections ferrule-based fittings bodies outside the polyethylene outer protective pipe that needs to connect, described ferrule-based fittings comprises outer sleeve, the hot melt control gear, and be arranged on material hole on the electric heating melting casing wall, it is characterized in that: described hot melt control gear is by the electric heating wire that is laid on the described outer sleeve inner wall, and vertically heating wire net and controller consist of.
2. electric-melting thermal insulation joint according to claim 1, it is characterized in that: described electric heating wire is copper wire.
3. electric-melting thermal insulation joint according to claim 1 is characterized in that: also be provided with exhaust port on the described electric heating melting sleeve outer wall.
4. electric-melting thermal insulation joint according to claim 1, it is characterized in that: described electric heating melting overlaps effective high-quality polyethylene board and forms through the embedded extraordinary heating wire net of heat seal, and described polyethylene board is PE sheet material.
5. electric-melting thermal insulation joint according to claim 1, it is characterized in that: described electric heating melting overlaps effective high-quality polyethylene pipe and forms through the embedded extraordinary heating wire net of heat seal, and described polyethylene pipe is the PE pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355670 CN202834538U (en) | 2012-07-20 | 2012-07-20 | Electric melting type heat-preservation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355670 CN202834538U (en) | 2012-07-20 | 2012-07-20 | Electric melting type heat-preservation joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834538U true CN202834538U (en) | 2013-03-27 |
Family
ID=47946244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355670 Expired - Fee Related CN202834538U (en) | 2012-07-20 | 2012-07-20 | Electric melting type heat-preservation joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587947A (en) * | 2015-08-31 | 2016-05-18 | 浙江双林机械股份有限公司 | Connecting process for polyethylene winding structured wall drainage pipe |
| CN110315763A (en) * | 2019-07-03 | 2019-10-11 | 天津市津能管业有限公司 | A kind of automatic sweating welder and welding method |
-
2012
- 2012-07-20 CN CN 201220355670 patent/CN202834538U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587947A (en) * | 2015-08-31 | 2016-05-18 | 浙江双林机械股份有限公司 | Connecting process for polyethylene winding structured wall drainage pipe |
| CN105587947B (en) * | 2015-08-31 | 2018-04-17 | 浙江双林机械股份有限公司 | A kind of polyethylene winding structure drainpipe Joining Technology |
| CN110315763A (en) * | 2019-07-03 | 2019-10-11 | 天津市津能管业有限公司 | A kind of automatic sweating welder and welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 301600 Binhai New Area, Tianjin Binhai New Area Science and Technology Park, No. 1258, No. 188 new road, building No. 1 Patentee after: Tianjin world dragon pipe industry Limited by Share Ltd Address before: 301600 Jinghai Economic Development Zone, Tianjin, North Road, No. two, No. nine Patentee before: Tianjin Tiandilong Pipe Industry Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20200720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |