CN203363539U - Energy-saving cold insulation device for pipeline - Google Patents
Energy-saving cold insulation device for pipeline Download PDFInfo
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- CN203363539U CN203363539U CN 201320263219 CN201320263219U CN203363539U CN 203363539 U CN203363539 U CN 203363539U CN 201320263219 CN201320263219 CN 201320263219 CN 201320263219 U CN201320263219 U CN 201320263219U CN 203363539 U CN203363539 U CN 203363539U
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Abstract
The utility model discloses an energy-saving cold insulation device for a pipeline. The energy-saving cold insulation device for pipeline comprises a cold insulation layer, a dampproof layer, a protective layer and a fireproof coating sequentially from inside to outside, wherein the cold insulation layer is a PIR layer, the dampproof layer is an inflaming retarding type mastic layer, the dampproof layer is mainly mastic, the protective layer is glass fiber reinforced plastics and mainly achieves the performance of protection and damp prevention, and the inflaming retarding type mastic layer comprises an inner layer inflaming retarding type mastic layer, a middle glass fiber gridding cloth layer and an outer layer inflaming retarding type mastic layer sequentially from inside to outside. The energy-saving cold insulation device for the pipeline has the advantages of saving energy, preventing damp, resisting to impact, fire, weather and freezing, and being long in service life.
Description
Technical field
The utility model Thermo Isolation Technique field, particularly a kind of energy saving pipeline cold-keeping device.
Background technique
The cold insulation layer of existing pipeline cold insulation product adopts multi cellular glass, and the thermal conductivity of multi cellular glass is in 0.05W/ (mK) left and right, and the cold insulation effect is not very outstanding, in moistureproof, fire prevention, general in aspect of performance effects such as weather-proof, freeze-thawing resistant, shock resistances.
Existing pipeline cold insulation problem
(1) cold insulation material is selected multi cellular glass.Due to the thermal conductivity of multi cellular glass, in 0.05W/ (mK) left and right, in order to reach the cold insulation process requirements, the cold insulation layer thickness can strengthen, and after strengthening, with the air area of contact, also will increase, and causes the energy-saving effect reduction.Although multi cellular glass has certain fire performance, not heat insulation, heat still can enter in the cold insulation layer.
(2) cold insulation material selects the internal layer cold insulation material to adopt multi cellular glass, and skin is selected PIR, due to the thermal conductivity of PIR in 0.02W/ (mK) left and right, can reduce the cold insulation layer thickness, reach energy-saving effect, but PIR does not have fireproof performance, as the condition of a fire, quite dangerous appear.
(3) cold insulation material selects the internal layer cold insulation material to adopt PIR, and skin is selected multi cellular glass, and be so also has very large defect on fireproof performance.
The model utility content
The utility model provides a kind of energy saving pipeline cold-keeping device with thinner cold insulation layer, improves the cold insulation effect, has protection against the tide, fire-resistant, weather-proof, shock resistance, freeze thawing resistance.
The energy saving pipeline cold-keeping device, comprise cold insulation layer, vapor barrier, protective layer and fire resistant coating from inside to outside successively.
Described cold insulation layer is PIR PIC layer.
Described vapor barrier is flame retardant type matizhi layer.
Described protective layer is glass fibre reinforced plastics.
Described flame retardant type matizhi layer comprises the fire-retardant matizhi layer of internal layer, middle level fiberglass mesh layer of cloth and outer fire-retardant matizhi layer from inside to outside successively.
The thickness of described fire resistant coating is for being 2mm～5mm
Described fire resistant coating is FIREAL635.
The beneficial effect of the utility model energy saving pipeline cold-keeping device is:
1, energy-conservation
The cold insulation layer is selected " PIR PIC ", replaces multi cellular glass, and it is low that the thermal conductivity of PIR is compared multi cellular glass, and the cold insulation layer thickness reduces, and energy distributes area and also will diminish, and still can reach preferably cold insulation effect when not enough in spatial position.Improve energy-saving effect, reduce energy loss and economic loss.
2, protection against the tide
Select flame retardant type matizhi+glass fibre reinforced plastics double-deck moistureproof, the matizhi protection against the tide to be generally to apply, the exhibit excellent moisture barrier properties of glass fibre reinforced plastics, but unmanned application, and we adopt the mounting glass steel more to improve humidity resistance.
3, shock resistance
Mounting glass steel protective layer, because glass fibre reinforced plastics has outstanding shock resistance, but the impact resistance of intensifier.
4, fire-resistant, weather-proof, freeze thawing resistance
By the fire resistant coating in about outermost surface smearing thickness 3mm, fire resistant coating is FIREAL635, when thickness is 3mm, fire-resistantly reaches 2.5 hours, and has good weather-proof, resistance to freezing and thawing.
5, long service life.
The accompanying drawing explanation
Fig. 1 is the utility model energy saving pipeline cold-keeping device schematic diagram.
In figure, 1 is pipeline, and 2 is the cold insulation layer, and 3 is glass wool, and 4 is vapor barrier, and 5 is protective layer, and 6 is fire resistant coating.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further explained to explanation.
Energy saving pipeline cold insulation product device; comprise successively from inside to outside cold insulation layer, vapor barrier, protective layer and fire resistant coating; the cold insulation layer is PIR PIC layer; vapor barrier is flame retardant type matizhi layer; protective layer is glass fibre reinforced plastics; flame retardant type matizhi layer comprises the fire-retardant matizhi layer of internal layer, middle level fiberglass mesh layer of cloth and outer fire-retardant matizhi layer from inside to outside successively, and the thickness of fire resistant coating is for being 2mm～5mm, and fire resistant coating is FIREAL635.
Arrangement and method for construction:
---vapor barrier construction---glass fibre reinforced plastics installation----fire resistant coating construction that the PIR PIC is installed
1, cold insulation layer method of construction
The cast of PIR PIC should meet the following requirements:
(1) should try to water before formal cast, and should observe expansion rate, pore size, change in color, flawless and distortion.Unit weight, the self-extinguish ability of test block watered in examination, answers the requirement of equality circuit specification.
(2) materials of batching, should be accurate.Material temperature, ambient temperature must be used regulation by equality circuit.The whipping up agent material acts in accordance with a direction and rotates, and mixture should be even.Each batching must be finished at the appointed time.
(3) the construction surface of cast, should keep dry.
(4) when large size is poured into a mould, should establish symmetrical multi-point sprue, segmentation and slicing carries out.And even with batch turning, casting quality is controlled in the sealing operation such as rapidly.
(5) cast is during PIR, when have foaming bad, come off, send out crisp embrittlement, feel like jelly, during the defect such as cracking, aperture are excessive, must investigate thoroughly reason, examination is watered until qualified again, can continue to construct.
(6) start the demoulding after solidification forming, will tie up with Stainless Steel Band after the demoulding completes, guarantee that every PIR has two Stainless Steel Bands at least.
2, the construction at expansion joint and regulation
The construction at expansion joint
Be filled with flexible cold insulation material glass wool at each expansion joint, compression 50% during installation, then with sealer, gap filling is sealed.Expand with heat and contract with cold because pipeline exists, can elongate or shorten, cold insulation layer and cold insulation layer will leave ，Wei expansion joint, gap when foaming, are mainly to avoid pushing while expanding with heat and contract with cold, and in expansion joint, packing is glass wool.
The reserved of expansion joint should meet the following requirements:
(1) must stagger in the position at bilayer or each layer of expansion joint of multi-layer cold insulation layer, and the distance that staggers should not be greater than 100mm.
(2) the horizontal straight tube road stays and establishes expansion joint one every 4～6m.
(3) vertical equipment and vertical pipe should stay and establish the wide expansion joint of 25mm below the supporting ring of its cold insulation layer.
(4) can respectively stay one expansion joint on the long straight length cold insulation in elbow two ends layer.When the spacing between two elbows is very little, on its straight length cold insulation layer, expansion joint can be determined and only stays together or do not stay and establish according to medium temperature.In the situation that deep cooling (60 ℃～-196 ℃) needs to stay expansion joint one.
(5) width at expansion joint is preferably 25mm.
(6) application glass fibre cotton in cold insulation layer expansion joint is clogged tight or is squeezed and scrape into the foaming type Bond.
(7) should carry out again cold insulation outside cold insulation layer expansion joint.
3, vapor barrier construction
Carry out the vapor barrier construction after the main material of cold insulation layer installs, adopt fire-retardant black matizhi to smear two times, the thick lattice glass cloth of one deck is put at middle interval, and after the appropriate to the occasion first pass matizhi of constructing is smeared, mounting glass cloth carries out second time matizhi and smears after slightly dry.
Require: must not there be war proclamation, bubble in surface, stick up the phenomenons such as mouth, cracking.
Attached: cold insulation vapor barrier construction technical requirement:
The cold insulation vapor barrier consists of the fire-retardant matizhi of internal layer+middle level glass fiber reticular cloth+outer fire-retardant matizhi.
Before smearing matizhi, that the surface of cold insulation layer should reach is smooth, even, without coign, pit with play the slag phenomenon, and requires surface clean, drying.
During construction, answer limit to smear the matizhi limit and twine or paste glass fiber reticular cloth.Glass fiber reticular cloth should be greater than 50mm in the lap length of hoop or longitudinal seam.
Glass fiber reticular cloth should be strained and pave, and the fold phenomenon must not be arranged.
The hoop seam of vertical equipment and vertical pipe vapor barrier window screening or glass cloth, all should on take down.The longitudinal seam of horizontal equipment and horizontal pipe is answered the both sides overlap joint, and sealing down.
After the first layer matizhi is solid, can smear second layer matizhi, do not allowed the exposed phenomenon of glass fiber reticular cloth.
It is closely knit that vapor barrier is pasted, without dehiscing, cracking, even thickness, solid after, reach 5mm.
4, glass fibre reinforced plastics is installed
The two lobe glass fibre reinforced plastics of making moulding are buckled on vapor barrier, and the gap sealant sealing, keep closely seamless.
5, fire resistant coating construction
Finally fireproof paint is spread upon to the glass fibre reinforced plastics outer surface, the about 3mm of thickness left and right, evenly seamless while smearing, outermost surface is smeared with fire resistant coating again, attractive in appearance beautiful.
Use material and function
1, PIR PIC is with respect to the major advantage of other material:
(1) the cold insulation performance is extremely excellent, first of all cold insulation materials
(2) stability of material is very good
(3) crushing resistance is strong
(4) dimensionally stable under the deep cooling cold conditions
(5) the shrinkage distortion is very trickle
(6) fireproof performance grade high (the difficult combustion of GB8624 B1 level, U.S. ASTM E84 standard)
(7) the physical property decay is very slow
(8) the serviceability temperature scope reaches-196 ℃-+130 ℃
(9) construct very conveniently, and easily the quality of construction is controlled.
2, flame retardant type matizhi
Oiliness black flame-retardant type matizhi is to adopt the fillers such as pitch, elastic resin, mineral, adds that appropriate fire retardant makes that it has tightness, water proofing property, freeze-proof, anti-corrosive properties, is difficult for can coldly constructing under season cracking, normal temperature, has the characteristics such as flame retarding after drying.
The key technical indexes:
(1) color: black
(2) averag density: 1300kg/m3
(3) flame retarding: without incendivity, there is flame retarding after drying during construction, leave burning things which may cause a fire disaster and certainly put out for 1 second.
(4) heat resistance: at 95 ℃ of temperature, 45 degree are tiltedly put 4 hours, and temperature is raised to 120 ℃ of 45 degree and tiltedly puts 1 hour, without trickling foaming phenomenon.
(5) water absorption rate: soaking at room temperature 24 hours, water absorption is not more than 0.5% of test portion weight
(6) frost resistance :-40 ℃ and+60 ℃ are respectively hung 2 hours without cracking, without breaking away from.
(7) time of drying: refer to dry 5 hours, absolutely dry 7 days.
(8) volatile matter: 30 ± 5%
(9) oxygen index:>30
(10) specific elongation: 3%
(11) cohesive force: 20 ℃ of 1.5kg/cm2
(12) serviceability temperature :-60～+ 95 ℃
3, glass fibre reinforced plastics
Key property:
(1) humidity resistance is strong, be higher than the humidity resistance of matizhi
(2) good decay resistance
(3) heat-resisting cold tolerance is good
(4) wear-resisting property is good
(5) thermal insulation property is excellent
(6) nonhazardous, no secondary pollution
(7) proportion is little, lightweight
4, fire resistant coating FIREAL635
A kind of replacement traditional thick type, the revolutionary fire-resistant coating for steel structure device that can comprehensively deal with problems again.
The fire prevention advantage:
(1) paint film 2mm is thick, reaches the fire performance of 2 hours
(2) can be in the face of heating up fire fast.
(3) desirable expansion multiplying power, expanding layer quality and thickness, create good Fire insulation.
(4) solid expanding layer, high strength and surface have floating layer first Shell, can resist the impact of external force.
(5) to the integral protection of burning hot cigarette poison, thermal insulation is good, absorbs heat, and low cigarette, do not drip vertical, nontoxic.
(6) the efficient integration of interface of paint film system, not long-term durablely do not lose efficacy
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or changed according to the technical solution of the utility model and model utility design thereof, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. the energy saving pipeline cold-keeping device, is characterized in that, described device comprises cold insulation layer, vapor barrier, protective layer and fire resistant coating from inside to outside successively.
2. energy saving pipeline cold-keeping device according to claim 1, is characterized in that, described cold insulation layer is PIR PIC layer.
3. energy saving pipeline cold-keeping device according to claim 1, is characterized in that, described vapor barrier is flame retardant type matizhi layer.
4. energy saving pipeline cold-keeping device according to claim 3, is characterized in that, described protective layer is glass fibre reinforced plastics.
5. energy saving pipeline cold-keeping device according to claim 3, is characterized in that, described flame retardant type matizhi layer comprises the fire-retardant matizhi layer of internal layer, middle level fiberglass mesh layer of cloth and outer fire-retardant matizhi layer from inside to outside successively.
6. energy saving pipeline cold-keeping device according to claim 1, is characterized in that, the thickness of described fire resistant coating is for being 2mm～5mm
7. energy saving pipeline cold-keeping device according to claim 1, is characterized in that, described fire resistant coating is FIREAL635.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263219 CN203363539U (en) | 2013-05-15 | 2013-05-15 | Energy-saving cold insulation device for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263219 CN203363539U (en) | 2013-05-15 | 2013-05-15 | Energy-saving cold insulation device for pipeline |
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| CN203363539U true CN203363539U (en) | 2013-12-25 |
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| CN 201320263219 Expired - Fee Related CN203363539U (en) | 2013-05-15 | 2013-05-15 | Energy-saving cold insulation device for pipeline |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318144A (en) * | 2014-06-18 | 2016-02-10 | 天津鑫宇通防腐保温工程有限公司 | Prefabricated PIR copious cooling heat preservation pipe |
| CN105570664A (en) * | 2016-01-29 | 2016-05-11 | 悌埃保温制品（上海）有限公司 | Thermal-insulating plate for thermal insulation and cold insulation of liquefied gas low-temperature storage tank |
| CN107504287A (en) * | 2017-10-12 | 2017-12-22 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of preparation method of icing wind tunnel cold insulation structure |
| CN108150762A (en) * | 2017-12-26 | 2018-06-12 | 海洋石油工程（青岛）有限公司 | LNG pipeline expansion joint thermal insulation fire-proof method |
| CN110186777A (en) * | 2019-05-30 | 2019-08-30 | 浙江大学城市学院 | It is a kind of simulation soil body confining pressure under the conditions of Frozen-thawed cycled testing equipment |
| CN110500472A (en) * | 2019-09-02 | 2019-11-26 | 福建亚通新材料科技股份有限公司 | A kind of house ornamentation multiple tube |
| CN113266712A (en) * | 2021-05-25 | 2021-08-17 | 江苏中圣管道工程技术有限公司 | Low-temperature cold insulation pipe structure prefabricated by spraying and winding method and manufacturing method thereof |
| CN114484154A (en) * | 2022-01-29 | 2022-05-13 | 北京天济明科技有限公司 | Low-deformation small-gap high-sealing special-shaped-section high-temperature pipeline heat insulation system |
-
2013
- 2013-05-15 CN CN 201320263219 patent/CN203363539U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318144A (en) * | 2014-06-18 | 2016-02-10 | 天津鑫宇通防腐保温工程有限公司 | Prefabricated PIR copious cooling heat preservation pipe |
| CN105570664A (en) * | 2016-01-29 | 2016-05-11 | 悌埃保温制品（上海）有限公司 | Thermal-insulating plate for thermal insulation and cold insulation of liquefied gas low-temperature storage tank |
| CN107504287A (en) * | 2017-10-12 | 2017-12-22 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of preparation method of icing wind tunnel cold insulation structure |
| CN107504287B (en) * | 2017-10-12 | 2023-04-07 | 中国空气动力研究与发展中心低速空气动力研究所 | Manufacturing method of freezing wind tunnel cold insulation structure |
| CN108150762A (en) * | 2017-12-26 | 2018-06-12 | 海洋石油工程（青岛）有限公司 | LNG pipeline expansion joint thermal insulation fire-proof method |
| CN110186777A (en) * | 2019-05-30 | 2019-08-30 | 浙江大学城市学院 | It is a kind of simulation soil body confining pressure under the conditions of Frozen-thawed cycled testing equipment |
| CN110500472A (en) * | 2019-09-02 | 2019-11-26 | 福建亚通新材料科技股份有限公司 | A kind of house ornamentation multiple tube |
| CN113266712A (en) * | 2021-05-25 | 2021-08-17 | 江苏中圣管道工程技术有限公司 | Low-temperature cold insulation pipe structure prefabricated by spraying and winding method and manufacturing method thereof |
| CN114484154A (en) * | 2022-01-29 | 2022-05-13 | 北京天济明科技有限公司 | Low-deformation small-gap high-sealing special-shaped-section high-temperature pipeline heat insulation system |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |