CN204267902U - The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply - Google Patents
The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply Download PDFInfo
- Publication number
- CN204267902U CN204267902U CN201420657281.3U CN201420657281U CN204267902U CN 204267902 U CN204267902 U CN 204267902U CN 201420657281 U CN201420657281 U CN 201420657281U CN 204267902 U CN204267902 U CN 204267902U
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- China
- Prior art keywords
- prefabricated direct
- heat insulation
- insulation composite
- heat supply
- outdoor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 229920003023 plastic Polymers 0.000 title claims abstract description 13
- 239000004033 plastic Substances 0.000 title claims abstract description 13
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 7
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 239000012774 insulation material Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 229920001903 high density polyethylene Polymers 0.000 abstract description 5
- 239000004700 high-density polyethylene Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
Description
技术领域 technical field
本实用型涉及一种室外集中供热预制直埋保温复合塑料管材，具体的说是一种在建筑室外集中供热领域，用于热力流体输送的一种三层复合管材。 The utility model relates to a prefabricated direct-buried thermal insulation composite plastic pipe for outdoor central heating, specifically a three-layer composite pipe used for thermal fluid transportation in the field of outdoor central heating of buildings.
背景技术 Background technique
目前，聚乙烯管道以其所具有的耐腐蚀、轻便、卫生、热熔连接方便等优点，广泛应用于城市给排水、输气等技术领域，并且在居民生活中也得到应用，已逐渐取代了传统的钢管。然而在现有的室外集中供热领域，仍然采用钢管保温管做为热力输送的主力管道，其普遍存在的缺点是：热源输送效率低、不耐腐蚀、安装费时费力，使用寿命短、后期维护成本高昂，普遍使用寿命不足15年，已经严重影响了供热安全、居民正常生活和社会秩序的稳定。 At present, polyethylene pipes are widely used in urban water supply and drainage, gas transmission and other technical fields due to their advantages of corrosion resistance, lightness, sanitation, and convenient hot-melt connection, and are also used in residents' lives, and have gradually replaced Traditional steel pipe. However, in the existing outdoor central heating field, steel pipe insulation pipes are still used as the main pipeline for heat transmission. The common disadvantages are: low heat source transmission efficiency, corrosion resistance, time-consuming and laborious installation, short service life, and post-maintenance The cost is high, and the general service life is less than 15 years, which has seriously affected the safety of heating supply, the normal life of residents and the stability of social order.
发明内容 Contents of the invention
本实用新型的目的在于克服上述现有技术的缺陷，提供一种有效提高输送热效率，耐腐蚀，安装简便，使用寿命长，后造价低，后期维护成本低的室外集中供热预制直埋保温复合塑料管材。 The purpose of this utility model is to overcome the defects of the above-mentioned prior art, and provide an outdoor central heating prefabricated direct-buried thermal insulation compound that can effectively improve the heat transfer efficiency, is corrosion-resistant, easy to install, has a long service life, low post-production cost, and low post-maintenance cost. Plastic tubing.
本实用新型是采用如下技术方案实现的： The utility model is realized by adopting the following technical solutions:
一种室外集中供热预制直埋保温复合塑料管材，其特征在于是由耐热PERTⅡ型聚乙烯树脂构成的内层、聚氨酯保温材料构成的中间保温层和高密度聚乙烯树脂制成的外层组成。 An outdoor centralized heating prefabricated directly buried thermal insulation composite plastic pipe, characterized in that it is an inner layer made of heat-resistant PERT II type polyethylene resin, a middle insulation layer made of polyurethane thermal insulation material and an outer layer made of high-density polyethylene resin composition.
本实用新型室外集中供热预制直埋保温复合塑料管材采用三层复合结构，在热力输送时，由内层PERTⅡ型聚乙烯内管承受输送热力产生的压力及热力；通过中间层的保温层进行绝热保温，防止热量流失至内管外，也有效防止了管外寒流侵入内层，从而起到了保温、防冻功能；外层采用高密度聚乙烯材料，在保证复合管材抗外压、抗划痕能力的同时，也能起到一定的保温、防冻作用。同时由于其采用全塑复合结构，因此不存在腐蚀问题，管材重量降低，直接采用热熔对接或电熔套筒进行连接，使得连接使用安全性有大幅度提高。 The utility model adopts a three-layer composite structure for outdoor centralized heating prefabricated direct-buried thermal insulation composite plastic pipes. During heat transmission, the inner layer PERTⅡ type polyethylene inner pipe bears the pressure and heat generated by the heat transmission; Thermal insulation prevents heat from being lost to the outside of the inner pipe, and effectively prevents the cold current outside the pipe from invading the inner layer, thereby playing the role of heat preservation and antifreeze; the outer layer is made of high-density polyethylene material, which ensures that the composite pipe is resistant to external pressure and scratches At the same time, it can also play a certain role in heat preservation and antifreeze. At the same time, because it adopts an all-plastic composite structure, there is no corrosion problem, and the weight of the pipe is reduced. It is directly connected by hot-melt butt joint or electric fusion sleeve, which greatly improves the safety of connection and use.
本实用新型的室外集中供热预制直埋保温复合塑料管材长期使用温度为80℃，最高耐热温度可达95℃，使用压力可达1.0MPa，长期使用寿命达到50年以上。 The outdoor centralized heating prefabricated direct-buried thermal insulation composite plastic pipe of the utility model has a long-term service temperature of 80°C, a maximum heat-resistant temperature of 95°C, a service pressure of 1.0MPa, and a long-term service life of more than 50 years.
本实用新型的室外集中供热预制直埋保温复合塑料管材在室外集中供热领域应用，替代传统的钢管保温管，具有热效率损失少，耐腐蚀，综合造价低，使用寿命长，后期维护成低等诸多优点，易于推广普及。 The outdoor central heating prefabricated directly buried thermal insulation composite plastic pipe of the utility model is applied in the field of outdoor central heating and replaces the traditional steel pipe thermal insulation pipe. And many other advantages, easy to popularize.
附图说明 Description of drawings
图1为本实用新型的室外集中供热预制直埋保温复合塑料管材的结构示意图。 Fig. 1 is a structural schematic diagram of a prefabricated direct-buried thermal insulation composite plastic pipe for outdoor centralized heating of the present invention.
具体实施方式 Detailed ways
本实用新型的室外集中供热预制直埋保温复合塑料管材，是由耐热PERTⅡ型聚乙烯树脂构成的内层1、聚氨酯保温材料构成的中间保温层2和高密度聚乙烯树脂制成的外层3组成。 The outdoor centralized heating prefabricated direct-buried thermal insulation composite plastic pipe of the present utility model is composed of an inner layer 1 composed of heat-resistant PERTⅡ type polyethylene resin, an intermediate thermal insulation layer 2 composed of polyurethane thermal insulation material and an outer layer made of high-density polyethylene resin. Layer 3 composition.
所述的耐热PERTⅡ型聚乙烯树脂是一种基于己烯共聚的PE100级高性能聚乙烯混配料，具有耐热、耐压等特点。 The heat-resistant PERT II type polyethylene resin is a PE100 grade high-performance polyethylene compound based on hexene copolymerization, which has the characteristics of heat resistance and pressure resistance.
所述的聚氨酯保温材料，是一种由异氰酸酯、聚醚、发泡剂和引发剂等按照一定配比进行闭孔发泡的硬质聚氨酯材料。 The polyurethane thermal insulation material is a rigid polyurethane material that is closed-cell foamed by isocyanate, polyether, foaming agent and initiator according to a certain ratio.
所述的高密度聚乙烯树脂为PE100级或PE80级别聚乙烯树脂，提供了较高的抗外压能力。 The high-density polyethylene resin is PE100 grade or PE80 grade polyethylene resin, which provides high resistance to external pressure.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657281.3U CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657281.3U CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267902U true CN204267902U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420657281.3U Expired - Lifetime CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322467A (en) * | 2020-04-08 | 2020-06-23 | 北京热力装备制造有限公司 | Overhead central heating/cooling pipes and overhead central heating/cooling pipe networks |
-
2014
- 2014-11-06 CN CN201420657281.3U patent/CN204267902U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322467A (en) * | 2020-04-08 | 2020-06-23 | 北京热力装备制造有限公司 | Overhead central heating/cooling pipes and overhead central heating/cooling pipe networks |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150415 |