CN204962049U - Prefabricated directly -buried thermal insulation pipe - Google Patents
Prefabricated directly -buried thermal insulation pipe Download PDFInfo
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- CN204962049U CN204962049U CN201520572814.2U CN201520572814U CN204962049U CN 204962049 U CN204962049 U CN 204962049U CN 201520572814 U CN201520572814 U CN 201520572814U CN 204962049 U CN204962049 U CN 204962049U
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- thermal insulation
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Abstract
The utility model relates to a thermal insulation pipe technical field especially relates to a prefabricated directly -buried thermal insulation pipe, including steel casing pipe, polyurethane foam layer and the outer pillar that sets up from inside to outside in proper order, its characterized in that: the outer cladding one deck high temperature resistant fiber carpet veneer of steel casing pipe, the high temperature resistant fiber carpet veneer posts the compound silicic acid calcium of one deck outward and keeps warm made of baked clay layer, compound silicic acid calcium keep warm the tile layer outer with fill between the outer pillar the polyurethane foam layer. The utility model discloses simple structure sets up the one deck heat retaining compound silicic acid calcium tile layer that keeps warm of can insulating against heat between present polyurethane foam insulation layer and steel casing pipe, it is thinner that this layer keeps warm the tile layer, and nevertheless thermal -insulated function is relatively good, can keep apart the temperature of steel casing pipe, and polyurethane foam insulation layer plays main heat preservation effect, and the high temperature resistant fiber carpet veneer plays the effect of keeping apart compound silicic acid calcium heat preservation and steel casing pipe, prevents that complex silicic acid calcium heat preservation from directly gluing on the steel casing pipe and the corruption steel casing pipe.
Description
Technical field
The utility model relates to heat-insulating pipe technical field, particularly relates to a kind of prefabricated direct-buried insulated pipe.
Background technique
Prefabricated direct-buried heat insulation pipe is mainly used in district heating outer net pipeline, and along with country is to the popularization of central heat supply, its consumption is increasing, and using scope is also more and more wider.Prefabricated direct-buried thermal insulation pipe road has the plurality of advantages such as waterproof, antiseptic property is good, investment reduction, shortening construction period, maintenance expenses are low.And the prefabricated direct-buried pipe used at present is by steel pipe, anticorrosive coat, support, thermal insulation layer forms, temperature because of hot water in steel pipe or steam in heat supplying process is very high, the inevitable expanded by heating of steel pipe, and steel pipe, thermal insulation layer, the expansion coefficient of support three kinds of materials is different, cannot synchronous shift between this three, thermal insulation layer will be caused, steel pipe, certain cracking phenomena is produced between support, namely between thermal insulation layer and steel pipe, between thermal insulation layer and support, certain gap is produced between support and steel pipe, this gap with the naked eye may not observe, but the heat-energy losses caused by the air heat conduction in gap goes mouth inestimable.In addition, because some insulation pipes need the place through humidities such as rivers, the thermal insulation layer of thermal insulation pipe of the prior art and the anti-corrosion layer structure steel pipe when long-time immersion is very easily corroded, and shortens the working life of thermal insulation pipe.
Model utility content
The purpose of this utility model is the deficiency overcoming above-mentioned technology, and provides a kind of prefabricated direct-buried insulated pipe, and structure is simple, corrosion-resistant.
The utility model for achieving the above object, by the following technical solutions: a kind of prefabricated direct-buried insulated pipe, comprise the Steel Sleeve, polyurethane foaming layer and the outer pillar that arrange from inside to outside successively, it is characterized in that: described Steel Sleeve outer cladding one deck high-temperature resistant fiber carpet veneer, post one deck composite calcium silicate insulation tile layer outside described high-temperature resistant fiber carpet veneer, outside described composite calcium silicate insulation tile layer and between described outer pillar, fill described polyurethane foaming layer.The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the composite calcium silicate insulation tile layer of heat-insulation and heat-preservation, this layer of insulation tile layer is thinner, but heat insulating function is relatively good, the temperature of Steel Sleeve can be isolated, polyurethane foamed thermal-insulating layer plays main insulation effect, and high-temperature resistant fiber carpet veneer plays the effect of isolation composite calcium silicate thermal insulation layer and Steel Sleeve, prevents composite calcium silicate thermal insulation layer to be directly bonded on Steel Sleeve and corrodes Steel Sleeve.
Preferably, described outer pillar inner side that is outer and described Steel Sleeve applies one deck corrosion-inhibiting coating respectively.Corrosion-inhibiting coating outside outer pillar can improve the anti-corrosion capacity of outer pillar, improves the working life of outer pillar, and Steel Sleeve inside is coated with corrosion-inhibiting coating can prevent liquid long-term corrosion Steel Sleeve, improves the working life of Steel Sleeve.
Preferably, aluminium foil reflecting layer is provided with between described polyurethane foaming layer and described outer pillar.Aluminium foil reflecting layer can prevent the heat in polyurethane foaming layer from faling apart outward, improves the thermal insulation property of thermal insulation pipe.
Preferably, keel bracket is provided with between described aluminium foil reflecting layer and described composite calcium silicate insulation tile layer.Play to support and fixing do use.
The beneficial effects of the utility model are: the utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the composite calcium silicate insulation tile layer of heat-insulation and heat-preservation, this layer of insulation tile layer is thinner, but heat insulating function is relatively good, the temperature of Steel Sleeve can be isolated, polyurethane foamed thermal-insulating layer plays main insulation effect, high-temperature resistant fiber carpet veneer plays the effect of isolation composite calcium silicate thermal insulation layer and Steel Sleeve, prevent composite calcium silicate thermal insulation layer to be directly bonded on Steel Sleeve and corrode Steel Sleeve, arranging aluminium foil reflecting layer can prevent the heat in polyurethane foaming layer from faling apart outward, improve the thermal insulation property of thermal insulation pipe, this thermal insulation pipe low cost of manufacture, be convenient to large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1, a kind of prefabricated direct-buried insulated pipe, comprise the Steel Sleeve 1, polyurethane foaming layer 4 and the outer pillar 6 that arrange from inside to outside successively, described Steel Sleeve outer cladding one deck high-temperature resistant fiber carpet veneer 2, post one deck composite calcium silicate insulation tile layer 3 outside described high-temperature resistant fiber carpet veneer, outside described composite calcium silicate insulation tile layer and between described outer pillar 6, fill described polyurethane foaming layer 4.The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the composite calcium silicate insulation tile layer of heat-insulation and heat-preservation, this layer of insulation tile layer is thinner, but heat insulating function is relatively good, the temperature of Steel Sleeve can be isolated, polyurethane foamed thermal-insulating layer plays main insulation effect, and high-temperature resistant fiber carpet veneer plays the effect of isolation composite calcium silicate thermal insulation layer and Steel Sleeve, prevents composite calcium silicate thermal insulation layer to be directly bonded on Steel Sleeve and corrodes Steel Sleeve.
As further improvement of the utility model, described outer pillar inner side that is outer and described Steel Sleeve applies one deck corrosion-inhibiting coating 7 respectively.Corrosion-inhibiting coating outside outer pillar can improve the anti-corrosion capacity of outer pillar, improves the working life of outer pillar, and Steel Sleeve inside is coated with corrosion-inhibiting coating can prevent liquid long-term corrosion Steel Sleeve, improves the working life of Steel Sleeve.Aluminium foil reflecting layer 5 is provided with between described polyurethane foaming layer 4 and described outer pillar 6.Aluminium foil reflecting layer can prevent the heat in polyurethane foaming layer from faling apart outward, improves the thermal insulation property of thermal insulation pipe.Keel bracket is provided with between described aluminium foil reflecting layer and described composite calcium silicate insulation tile layer.Play to support and fixing do use.
In order to strengthen the anti-corrosion capacity of thermal insulation pipe further, prevent liquid from entering the internal structure of thermal insulation pipe from the joint of thermal insulation pipe, scribble preventing rubber layer at the two ends of thermal insulation pipe, the thickness of protective coating is at 1-5mm.The Rotating fields all by thermal insulation pipe all carries out bonding protection, substantially increases the working life of thermal insulation pipe.
The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the composite calcium silicate insulation tile layer of heat-insulation and heat-preservation, this layer of insulation tile layer is thinner, but heat insulating function is relatively good, the temperature of Steel Sleeve can be isolated, polyurethane foamed thermal-insulating layer plays main insulation effect, high-temperature resistant fiber carpet veneer plays the effect of isolation composite calcium silicate thermal insulation layer and Steel Sleeve, prevent composite calcium silicate thermal insulation layer to be directly bonded on Steel Sleeve and corrode Steel Sleeve, arranging aluminium foil reflecting layer can prevent the heat in polyurethane foaming layer from faling apart outward, improve the thermal insulation property of thermal insulation pipe, this thermal insulation pipe low cost of manufacture, be convenient to large-scale promotion application.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a prefabricated direct-buried insulated pipe, comprise the Steel Sleeve, polyurethane foaming layer and the outer pillar that arrange from inside to outside successively, it is characterized in that: described Steel Sleeve outer cladding one deck high-temperature resistant fiber carpet veneer, post one deck composite calcium silicate insulation tile layer outside described high-temperature resistant fiber carpet veneer, outside described composite calcium silicate insulation tile layer and between described outer pillar, fill described polyurethane foaming layer.
2. prefabricated direct-buried insulated pipe according to claim 1, is characterized in that: described outer pillar inner side that is outer and described Steel Sleeve applies one deck corrosion-inhibiting coating respectively.
3. prefabricated direct-buried insulated pipe according to claim 2, is characterized in that: be provided with aluminium foil reflecting layer between described polyurethane foaming layer and described outer pillar.
4. prefabricated direct-buried insulated pipe according to claim 3, is characterized in that: be provided with keel bracket between described aluminium foil reflecting layer and described composite calcium silicate insulation tile layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572814.2U CN204962049U (en) | 2015-07-31 | 2015-07-31 | Prefabricated directly -buried thermal insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572814.2U CN204962049U (en) | 2015-07-31 | 2015-07-31 | Prefabricated directly -buried thermal insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204962049U true CN204962049U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520572814.2U Active CN204962049U (en) | 2015-07-31 | 2015-07-31 | Prefabricated directly -buried thermal insulation pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218449A (en) * | 2017-06-07 | 2017-09-29 | 江苏万奇电器集团有限公司 | A kind of pipe fitting with heat insulation function |
| CN107387886A (en) * | 2016-05-17 | 2017-11-24 | 高金龙 | Direct buried anticorrosion heat-preserving composite pipeline |
| CN108071895A (en) * | 2016-11-16 | 2018-05-25 | 江苏瑞凌新能源科技有限公司 | A kind of direct-buried heat insulation pipe |
-
2015
- 2015-07-31 CN CN201520572814.2U patent/CN204962049U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387886A (en) * | 2016-05-17 | 2017-11-24 | 高金龙 | Direct buried anticorrosion heat-preserving composite pipeline |
| CN108071895A (en) * | 2016-11-16 | 2018-05-25 | 江苏瑞凌新能源科技有限公司 | A kind of direct-buried heat insulation pipe |
| CN107218449A (en) * | 2017-06-07 | 2017-09-29 | 江苏万奇电器集团有限公司 | A kind of pipe fitting with heat insulation function |
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