CN204962058U - Steel bushing steel insulating tube - Google Patents
Steel bushing steel insulating tube Download PDFInfo
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- CN204962058U CN204962058U CN201520572226.9U CN201520572226U CN204962058U CN 204962058 U CN204962058 U CN 204962058U CN 201520572226 U CN201520572226 U CN 201520572226U CN 204962058 U CN204962058 U CN 204962058U
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Abstract
The utility model relates to a thermal insulation pipe technical field especially relates to a steel bushing steel insulating tube, including steel casing pipe, heat preservation and the outer steel pipe that sets up from inside to outside in proper order, its characterized in that: the outer solderless wrapped connection of steel casing pipe has the cotton heat preservation of centrifugal glass, and outer packing of the cotton heat preservation of centrifugal glass has polyurethane foam insulation layer, polyurethane foam insulation layer is equipped with the compound reflection stratum of glass fiber outward, glass fiber is equipped with outside the compound reflection stratum outer steel pipe, the outer solderless wrapped connection of outer steel pipe has glass steel inoxidizing coating. The utility model discloses simple structure sets up the one deck cotton heat preservation of heat retaining centrifugal glass that can insulate against heat between current polyurethane foam insulation layer and steel casing pipe, this layer of heat preservation is thinner, 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 glass fibre composite reflection stratum is used for temperature to external world to keep apart, goes back polyurethane foam insulation layer's temperature reecho simultaneously.
Description
Technical field
The utility model relates to heat-insulating pipe technical field, particularly relates to a kind of steel sleeve steel thermal insulation 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 steel sleeve steel thermal insulation pipe, and structure is simple, corrosion-resistant.
The utility model for achieving the above object, by the following technical solutions: a kind of steel sleeve steel thermal insulation pipe, comprise the Steel Sleeve, thermal insulation layer and the outer steel pipe that arrange from inside to outside successively, it is characterized in that: the outer solderless wrapped connection of described Steel Sleeve has centrifugally glass-wool thermal insulation layer, polyurethane foamed thermal-insulating layer is filled with outside centrifugally glass-wool thermal insulation layer, glass fibre complex reflex layer is provided with outside described polyurethane foamed thermal-insulating layer, described glass fibre complex reflex layer peripheral hardware has described outer steel pipe, and the outer solderless wrapped connection of described outer steel pipe has glass fibre reinforced plastics protective coating.The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the centrifugally glass-wool thermal insulation layer of heat-insulation and heat-preservation, this layer of thermal insulation 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, the temperature that glass fibre complex reflex layer is used for external world is isolated, the temperature of polyurethane foamed thermal-insulating layer is reflected back again simultaneously, the antiseptic property that one deck glass fibre reinforced plastics protective coating can considerably increase thermal insulation pipe is set outside steel pipe outside, low cost of manufacture, be convenient to large-scale promotion application.
Air barrier is provided with between described glass fibre complex reflex layer and described outer steel pipe.Carry out inside air barrier filling nitrogen, the partition ability between inside and outside strengthening.
The anticorrosion enamelled coating of described Steel Sleeve internal coat one deck.Prevent liquid from internal corrosion Steel Sleeve.
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 centrifugally glass-wool thermal insulation layer of heat-insulation and heat-preservation, this layer of thermal insulation 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, the temperature that glass fibre complex reflex layer is used for external world is isolated, the temperature of polyurethane foamed thermal-insulating layer is reflected back again simultaneously, the antiseptic property that one deck glass fibre reinforced plastics protective coating can considerably increase thermal insulation pipe is set outside steel pipe outside, 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.A kind of steel sleeve steel thermal insulation pipe as shown in Figure 1, comprise the Steel Sleeve 1, thermal insulation layer and the outer steel pipe that arrange from inside to outside successively, the outer solderless wrapped connection of described Steel Sleeve has centrifugally glass-wool thermal insulation layer 2, polyurethane foamed thermal-insulating layer 3 is filled with outside centrifugally glass-wool thermal insulation layer, glass fibre complex reflex layer 4 is provided with outside described polyurethane foamed thermal-insulating layer, described glass fibre complex reflex layer peripheral hardware has described outer steel pipe 5, and the outer solderless wrapped connection of described outer steel pipe has glass fibre reinforced plastics protective coating 6.The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the centrifugally glass-wool thermal insulation layer of heat-insulation and heat-preservation, this layer of thermal insulation 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, the temperature that glass fibre complex reflex layer is used for external world is isolated, the temperature of polyurethane foamed thermal-insulating layer is reflected back again simultaneously, the antiseptic property that one deck glass fibre reinforced plastics protective coating can considerably increase thermal insulation pipe is set outside steel pipe outside, low cost of manufacture, be convenient to large-scale promotion application.
In order to reach the heat insulation effect of thermal insulation, between described glass fibre complex reflex layer 4 and described outer steel pipe 5, be provided with air barrier 7.Carry out inside air barrier filling nitrogen, the partition ability between inside and outside strengthening.The anticorrosion enamelled coating 8 of described Steel Sleeve internal coat one deck.Prevent liquid from internal corrosion Steel Sleeve.
The utility model structure is simple, between existing polyurethane foamed thermal-insulating layer and Steel Sleeve, arrange one deck can the centrifugally glass-wool thermal insulation layer of heat-insulation and heat-preservation, this layer of thermal insulation 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, the temperature that glass fibre complex reflex layer is used for external world is isolated, the temperature of polyurethane foamed thermal-insulating layer is reflected back again simultaneously, the antiseptic property that one deck glass fibre reinforced plastics protective coating can considerably increase thermal insulation pipe is set outside steel pipe outside, 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 (3)
1. a steel sleeve steel thermal insulation pipe, comprise the Steel Sleeve, thermal insulation layer and the outer steel pipe that arrange from inside to outside successively, it is characterized in that: the outer solderless wrapped connection of described Steel Sleeve has centrifugally glass-wool thermal insulation layer, polyurethane foamed thermal-insulating layer is filled with outside centrifugally glass-wool thermal insulation layer, glass fibre complex reflex layer is provided with outside described polyurethane foamed thermal-insulating layer, described glass fibre complex reflex layer peripheral hardware has described outer steel pipe, and the outer solderless wrapped connection of described outer steel pipe has glass fibre reinforced plastics protective coating.
2. steel sleeve steel thermal insulation pipe according to claim 1, is characterized in that: be provided with air barrier between described glass fibre complex reflex layer and described outer steel pipe.
3. steel sleeve steel thermal insulation pipe according to claim 1, is characterized in that: the anticorrosion enamelled coating of described Steel Sleeve internal coat one deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572226.9U CN204962058U (en) | 2015-07-31 | 2015-07-31 | Steel bushing steel insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572226.9U CN204962058U (en) | 2015-07-31 | 2015-07-31 | Steel bushing steel insulating tube |
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| Publication Number | Publication Date |
|---|---|
| CN204962058U true CN204962058U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520572226.9U Active CN204962058U (en) | 2015-07-31 | 2015-07-31 | Steel bushing steel insulating tube |
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| CN (1) | CN204962058U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090459A (en) * | 2016-06-29 | 2016-11-09 | 无锡必胜必精密钢管有限公司 | A kind of prefabricated direct-buried steam insulation steel pipe |
| CN106321993A (en) * | 2016-08-31 | 2017-01-11 | 天津市管道工程集团有限公司 | Anti-flaming heat preservation pipe having damping function |
| CN110594532A (en) * | 2019-09-28 | 2019-12-20 | 上海科华热力管道有限公司 | Composite heat-insulation prefabricated overhead steam heat-insulation pipe and processing technology thereof |
| CN110735973A (en) * | 2019-10-11 | 2020-01-31 | 江苏润广环保科技有限公司 | steel-sheathed steel thermal insulation pipe for heat distribution pipeline |
| CN112880169A (en) * | 2021-01-07 | 2021-06-01 | 广州市机电安装有限公司 | Modular construction method for water receiving pipe section of air handling unit |
-
2015
- 2015-07-31 CN CN201520572226.9U patent/CN204962058U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090459A (en) * | 2016-06-29 | 2016-11-09 | 无锡必胜必精密钢管有限公司 | A kind of prefabricated direct-buried steam insulation steel pipe |
| CN106321993A (en) * | 2016-08-31 | 2017-01-11 | 天津市管道工程集团有限公司 | Anti-flaming heat preservation pipe having damping function |
| CN110594532A (en) * | 2019-09-28 | 2019-12-20 | 上海科华热力管道有限公司 | Composite heat-insulation prefabricated overhead steam heat-insulation pipe and processing technology thereof |
| CN110735973A (en) * | 2019-10-11 | 2020-01-31 | 江苏润广环保科技有限公司 | steel-sheathed steel thermal insulation pipe for heat distribution pipeline |
| CN112880169A (en) * | 2021-01-07 | 2021-06-01 | 广州市机电安装有限公司 | Modular construction method for water receiving pipe section of air handling unit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |