CN105313256A - Thermal insulation pipe foaming process and polyurethane material - Google Patents
Thermal insulation pipe foaming process and polyurethane material Download PDFInfo
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- CN105313256A CN105313256A CN201410118928.XA CN201410118928A CN105313256A CN 105313256 A CN105313256 A CN 105313256A CN 201410118928 A CN201410118928 A CN 201410118928A CN 105313256 A CN105313256 A CN 105313256A
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- insulating tube
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Abstract
The present invention discloses a thermal insulation pipe foaming process and a polyurethane material. The thermal insulation pipe forming process is characterized in that a foaming machine, a raw material storage tank, an air compressor, an electrical instrument control installation disk and the like are fixed on a walking trolley or a thermal insulation pipe foaming platform is fixed on the walking trolley, and the speed, the travel and other variables of the walking trolley are controlled by PLC programming. According to the present invention, the foam density within the thermal insulation pipe full-length range has low deviation, the material is saved, the polyurethane combination material is further mixed in the material injection pipe, and the foam quality is good.
Description
Technical field:
The present invention relates to " polyurethane foam heat-insulation pipe " production technical field.
Background technology:
At present, formed polyurethane foam heat-insulation pipe be widely used in urban heating and Crude Oil Transportation field by steel pipe, polyurethane foam insulation layer, outer pillar.At present, the foam process of insulating tube is divided into termination material feeding method and middle material feeding method, and material feeding method in termination is divided into again from one end material feeding of insulating tube and the material feeding simultaneously from two ends; Middle material feeding method Application comparison is extensive, is that a sprue is opened in the centre position of pillar outside, is inserted in sprue by foaming machine gun head and inject polyurethane foam material in steel pipe and plastic tube interlayer.The shortcoming of above-mentioned technique is that heat-insulation layer foam density difference is large.
Summary of the invention:
For overcoming above-mentioned defect, invent a kind of insulating tube foam process and polyurethane combined material, comprise insulating tube foaming platform, walking dolly, air compressor machine, foaming machine, raw material storage tank, filling tube, formation such as PLC electricity instrument control system and special polyurethane material etc., feature is: foaming machine, raw material storage tank, air compressor machine, electricity instrument control sabot etc. is fixed on walking dolly or is fixed on walking dolly by insulating tube foaming platform, the speed of walking dolly and stroke are by foaming machine unit interval load, environment temperature, single insulating tube length and required total shot, the technical parameters of polyurethane combined material etc. are input variable.
Foaming process of the present invention is: steel pipe is inserted in outer pillar chamber and forms jacket pipe and lie in a horizontal plane on foaming platform by (1), (2) shutoff steel pipe and outer pillar interlayer port, (3) filling tube is inserted until the other end from jacket pipe one end, (4) filling tube is connected with foaming machine gun head, (5) speed of travel and the travel time of the section/braking section of the accelerating sections of walking dolly/is at the uniform velocity set, (6) startup walking dolly and foaming machine inject polyurethane material by the parameter of setting in steel pipe and outer pillar interlayer, (6) start compressed air and purge filling tube, (7) the artificial connection removing filling tube and foaming machine gun head, extract filling tube out and clean material stock in its pipe.In this technique, the speed of travel of the section/braking section of accelerating sections/at the uniform velocity of walking dolly and travel time determined by some control variables, as the technical characteristic etc. of the stability of the levelness of the performance of the performance of foaming machine, air compressor machine, insulating tube foaming platform, walking dolly, insulating tube specification, foam density, environment temperature, polyurethane material raw material.
Filling tube of the present invention, is characterized in that one end is threaded and is connected with the machine gun head that foams, and the other end is closed, and inside shut, border has discharge opening, and the length of filling tube is greater than the length of insulating tube, and filling tube should select steel pipe.
Insulating tube foam process of the present invention, electric instrument control system described in it is that PLC programming coordinated signals walking dolly, foaming machine and air purge.
Polyurethane combined material of the present invention, be made up of polyisocyanates and combined polyether, mass ratio is (1 ~ 1.5): 1, and wherein, the mass percent of combined polyether is: PPG A25% ~ 40%; PPG B25% ~ 50%; PPG C20% ~ 35%; PEPA 30% ~ 50%; Foam stabiliser 2.0% ~ 5%; Blowing agent A (de-ionate) 1.0% ~ 3.5%; Blowing agent B (HCFG-141B) 20% ~ 35%; Composite catalyst 1.0% ~ 4.5%.
Advantage of the present invention:
By the polyurethane foam heat-insulation pipe of this explained hereafter, in insulating tube length range, foam density deviation is very little, and save material, polyurethane combined material is fully mixed in filling tube, and foam quality is good.
Accompanying drawing illustrates:
Fig. 1 is insulating tube foam process equipment preparation figure of the present invention.
Fig. 2 is described filling tube enlarged drawing.
In figure, the steel pipe, 12 of 1 be foaming machine, 2 are air compressor machines, 3 are walking dollies, 4 are PLC electricity instrument controllers, 5 are foaming machine gun heads, 6 are filling tubes, 7 are filling tube discharging terminations, 8 are insulating tube foaming platforms, 9 is polyurethane storage tanks, 10 to be outer pillars, 11 of insulating tube be insulating tube is crab traversing limiter, 13 are guide rails, 14 are filling tube discharge openings, 15 are filling tube discharging termination shroudings, 16 is filling tube and foaming machine gun head connector.
Embodiment: for Φ 720*10/ Φ 850*12 insulating tube production technology.
The present embodiment foaming process is, (1) form jacket pipe in the outer pillar chamber of plastics of the steel pipe of Φ 720*10*12000mm being inserted in Φ 850*12*11650mm and lie in a horizontal plane in without on support foaming platform, (2) shutoff steel pipe and outer pillar interlayer port, (3) discharge end of filling tube is inserted in steel pipe and outer pillar interlayer until the other end, (4) filling tube is connected with foaming machine gun head, (5) ratio setting polyisocyanates and combined polyether is 1.35:1, and the quality proportioning of combined polyether is: PPG A45, PPG B20, PEPA 30, foam stabiliser 2, blowing agent 1, composite catalyst 3, setting foaming machine (model PU220) blends doses 2.25Kg/s, single the required total shot 90Kg (by 60Kg/m3 material feeding) of insulating tube, injection time 40s, environment temperature 17 DEG C, temperature of charge 36 DEG C, the accelerating sections of walking dolly is 3s, at the uniform velocity section 33s, speed 0.29m/s, braking section 4s, (6) startup walking dolly and foaming machine inject polyurethane material by the parameter of setting in steel pipe and outer pillar interlayer, (7) start compressed air and purge filling tube, (8) the artificial connection removing filling tube and foaming machine gun head, extract filling tube out and clean material stock in its pipe.
Embodiment effect: 1 insulating tube is randomly drawed to the Φ 720*10/ Φ 850*12 insulating tube by above-mentioned explained hereafter, measure the situation of change of axis direction foam density, 1st sample point is apart from outer pillar pipe end 0.5 meter, then one piece of sampling point is got every 0.5 meter, get 23 pieces altogether, averag density 58.6Kg/m3, most high density 61.25Kg/m3, least density 58.1Kg/m3.
Claims (5)
1. an insulating tube foam process and polyurethane material, comprise insulating tube foaming platform, the formations such as walking dolly, air compressor machine, foaming machine, raw material storage tank, filling tube, electric instrument control system, feature is: the mechanical, electrical instrument control assembling system of foaming machine, raw material storage tank, pneumatics etc. is fixed on walking dolly or is fixed on walking dolly by insulating tube foaming platform, and the speed of walking dolly and stroke are input variable by the technical parameter etc. of foaming machine unit interval load, environment temperature, single insulating tube length and required total shot, polyurethane combined material.
2. insulating tube foam process according to claim 1, its process is: steel pipe is inserted in outer pillar chamber and forms jacket pipe and lie in a horizontal plane on insulating tube foaming platform by (1), (2) shutoff steel pipe and outer pillar interlayer port, (3) filling tube is inserted until the jacket pipe other end from jacket pipe one end, (4) filling tube is connected with foaming machine gun head, (5) speed of travel and the time of the section/braking section of accelerating sections/at the uniform velocity of walking dolly is set, (6) startup walking dolly and foaming machine inject polyurethane material by the technological parameter of setting in steel pipe and outer pillar interlayer, (7) start compressed air and purge filling tube, (8) artificial remove filling tube and foaming machine gun head connection and extract filling tube out and clean.
3. insulating tube foam process according to claim 1, filling tube described in it, one end is threaded and is connected with the machine gun head that foams, and the other end is closed, and inside shut, border is provided with discharge opening, and the length of filling tube is greater than the length of insulating tube, and internal diameter is greater than 15mm.
4. insulating tube foam process according to claim 1, electric instrument control system described in it is that PLC programmes coordinated signals.
5. insulating tube foam process and polyurethane material according to claim 1, described polyurethane material is made up of polyisocyanates and combined polyether, mass ratio is (1 ~ 1.5): 1, and wherein, combined polyether composition is (mass percent): PPG A45% ~ 60%; PPG B25% ~ 50%; PEPA 30% ~ 50%; Foam stabiliser 2.0% ~ 5%; Blowing agent A (de-ionate) 1.0% ~ 2.5%; Blowing agent B (HCFG-141B) 20% ~ 25%; Composite catalyst 1.0% ~ 4.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118928.XA CN105313256A (en) | 2014-07-13 | 2014-07-13 | Thermal insulation pipe foaming process and polyurethane material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118928.XA CN105313256A (en) | 2014-07-13 | 2014-07-13 | Thermal insulation pipe foaming process and polyurethane material |
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| Publication Number | Publication Date |
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| CN105313256A true CN105313256A (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410118928.XA Pending CN105313256A (en) | 2014-07-13 | 2014-07-13 | Thermal insulation pipe foaming process and polyurethane material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481651A (en) * | 2018-05-15 | 2018-09-04 | 芜湖君如保温材料有限公司 | A kind of filling tooling of insulating tube foaming agent |
| CN108544705A (en) * | 2018-05-05 | 2018-09-18 | 芜湖君如保温材料有限公司 | A kind of solid multistation foaming workpiece |
| CN110303631A (en) * | 2019-06-26 | 2019-10-08 | 长虹美菱股份有限公司 | A kind of refrigerator urethane raw temprature control method |
| CN116284652A (en) * | 2023-03-10 | 2023-06-23 | 河北乾海管道制造有限公司 | Steel sleeve steel polyurethane heat-insulating pipe and preparation method thereof |
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| CN2361454Y (en) * | 1998-12-29 | 2000-02-02 | 郭安民 | Pressure-regulating polyurethane foaming machine |
| WO2004024411A1 (en) * | 2002-09-11 | 2004-03-25 | A/S Star Pipe | Method and plant for manufacturing lengths of pre-insulated pipes |
| CN201412641Y (en) * | 2009-11-12 | 2010-02-24 | 齐克先 | Bracket-free plastic external protecting tube polyurethane foam heat-insulation tube |
| CN102962940A (en) * | 2012-12-10 | 2013-03-13 | 孟扬 | Insulating pipe uniformly-foaming device |
| CN202878581U (en) * | 2012-11-23 | 2013-04-17 | 天津旭迪聚氨酯保温防腐设备有限公司 | High-pressure field polyurethane mouth repairing machine |
| CN103709372A (en) * | 2013-12-23 | 2014-04-09 | 山东一诺威新材料有限公司 | Medical freezer type polyurethane thermal insulation material and preparation method thereof |
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2014
- 2014-07-13 CN CN201410118928.XA patent/CN105313256A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2361454Y (en) * | 1998-12-29 | 2000-02-02 | 郭安民 | Pressure-regulating polyurethane foaming machine |
| WO2004024411A1 (en) * | 2002-09-11 | 2004-03-25 | A/S Star Pipe | Method and plant for manufacturing lengths of pre-insulated pipes |
| CN201412641Y (en) * | 2009-11-12 | 2010-02-24 | 齐克先 | Bracket-free plastic external protecting tube polyurethane foam heat-insulation tube |
| CN202878581U (en) * | 2012-11-23 | 2013-04-17 | 天津旭迪聚氨酯保温防腐设备有限公司 | High-pressure field polyurethane mouth repairing machine |
| CN102962940A (en) * | 2012-12-10 | 2013-03-13 | 孟扬 | Insulating pipe uniformly-foaming device |
| CN103709372A (en) * | 2013-12-23 | 2014-04-09 | 山东一诺威新材料有限公司 | Medical freezer type polyurethane thermal insulation material and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544705A (en) * | 2018-05-05 | 2018-09-18 | 芜湖君如保温材料有限公司 | A kind of solid multistation foaming workpiece |
| CN108481651A (en) * | 2018-05-15 | 2018-09-04 | 芜湖君如保温材料有限公司 | A kind of filling tooling of insulating tube foaming agent |
| CN110303631A (en) * | 2019-06-26 | 2019-10-08 | 长虹美菱股份有限公司 | A kind of refrigerator urethane raw temprature control method |
| CN116284652A (en) * | 2023-03-10 | 2023-06-23 | 河北乾海管道制造有限公司 | Steel sleeve steel polyurethane heat-insulating pipe and preparation method thereof |
| CN116284652B (en) * | 2023-03-10 | 2023-08-08 | 河北乾海管道制造有限公司 | Steel sleeve steel polyurethane heat-insulating pipe and preparation method thereof |
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Effective date of registration: 20180115 Address after: The new Tianjin road 830002 the Xinjiang Uygur Autonomous Region Urumqi high tech Industrial Development Zone, No. 313 lane two Applicant after: URUMQI JIUPIN SESAME INFORMATION TECHNOLOGY CO., LTD. Address before: 255000 Zhangdian District, Shandong, Dongyuan District 6-3-501 Applicant before: Qi Kexian |
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Application publication date: 20160210 |
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