CN206889968U - A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting - Google Patents
A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting Download PDFInfo
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- CN206889968U CN206889968U CN201720648430.3U CN201720648430U CN206889968U CN 206889968 U CN206889968 U CN 206889968U CN 201720648430 U CN201720648430 U CN 201720648430U CN 206889968 U CN206889968 U CN 206889968U
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Abstract
A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, belong to utilidor technical field, for preventing moisture from entering heat-insulation layer, while simplify waterproof technology.Its technical scheme is：Heat-insulation layer is filled between working steel tube and outer protection tube, waterproof layer is laid between the working steel tube at the both ends of heat-insulation layer and outer protection tube, waterproof layer is flexible waterproof material, flexible waterproof material is brushed or is sprayed between working steel tube and the outer protection tube at the both ends of heat-insulation layer, the both ends of flexible waterproof material and heat-insulation layer, working steel tube outer wall and outer protection tube inwall are combined closely, and the thickness of waterproof layer is 0.1 5mm.The utility model can prevent moisture from entering heat-insulation layer, ensure the heat insulation effect of insulating tube, extend the service life of insulating tube；Flexible waterproof material only needs after insulating tube produces, to be brushed or sprayed at insulating tube heat-insulation layer both ends, production technology is convenient, reduces production process, reduces maintenance cost, servicing time and workload.
Description
Technical field
It the utility model is related to one kind and be used for heat supply prefabricated direct-buried thermal insulation pipe and its pipe fitting, belong to utilidor technology neck
Domain.
Background technology
Prefabricated direct-buried thermal insulation pipe has low low engineering cost, thermal losses, the energy-conservation energy, anti-corrosion, good insulating, service life
Length, take up an area the advantages that few, be widely used in heating network.High-density polyethylene external protective pipe RPUF is prefabricated direct-buried
Insulating tube（Hereinafter referred to as：Prefabricated direct-buried thermal insulation pipe）Structure be followed successively by from inside to outside：Working steel tube, hard polyurethane foams modeling
Material, high-density polyethylene external protective pipe.Prefabricated direct-buried thermal insulation pipe is often soaked with rain when being deposited or being constructed, or by
Underground water soaks, and causes heat-insulation layer to be intake, and then causes heat insulation effect to reduce or fail, meanwhile, the moisture contained in heat-insulation layer
Working steel tube corrosion will be caused, have a strong impact on the service life of insulating tube.China Patent No. ZL 201520064975.0 is disclosed
A kind of prefabricated direct-buried thermal insulation pipe with waterproof construction, its scheme are：Rigidity is added between working steel tube and outer protection tube
The annular waterproof closure plate of material, waterproof closure plate are combined closely with instrumentation tubes, outer protection tube, can effectively prevent water from entering insulation
Layer.The invention needs to carry out waterproof closure plate waterproof and preservative treatment, the outer circumference surface of waterproof closure plate and the inwall of outer protection tube it
Between be tightly connected by water tight packing and anticorrosive packing, filled out between the bore area of waterproof closure plate and the outer wall of working steel tube by waterproof
Material and anticorrosive packing are tightly connected.Although the program can effectively prevent water from entering heat-insulation layer, its production process is complicated, cost
It is higher, it is therefore necessary to develop that a kind of production technology is easy, lower-cost Water-proof thermal-insulating pipe.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, this
Insulating tube can prevent prefabricated direct-buried thermal insulation pipe from having moisture to enter heat-insulation layer during storage, construction and use, ensure insulation
The heat insulation effect of pipe, extend the service life of insulating tube, while waterproof technology is succinct, reduces production process, reduces production
Cost.
Solve above-mentioned technical problem technical scheme be：
A kind of water proof type prefabricated direct-buried thermal insulation pipe and its pipe fitting, it includes working steel tube, heat-insulation layer, outer protection tube, heat-insulation layer
It is filled between working steel tube and outer protection tube, its improvements is, between the working steel tube at the both ends of heat-insulation layer and outer protection tube
Waterproof layer is laid with, waterproof layer is flexible waterproof material, and the work at the both ends of heat-insulation layer is brushed or be sprayed on to flexible waterproof material
Between steel pipe and outer protection tube, both ends, working steel tube outer wall and the outer protection tube inwall of flexible waterproof material and heat-insulation layer are combined closely,
The thickness of waterproof layer is 0.1-5mm.
Above-mentioned waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, the working steel tube are straight steel pipe, and waterproof layer is located at straight steel pipe
The both ends of the both ends of heat-insulation layer between outer protection tube, waterproof layer and heat-insulation layer closely connect, waterproof layer and straight steel pipe outer wall, outer
Pillar inwall is combined closely.
Above-mentioned waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, the working steel tube are fixed knot, and waterproof layer is located at fixed knot
The both ends of the both ends of heat-insulation layer between outer protection tube, waterproof layer and heat-insulation layer closely connect, waterproof layer and fixed knot outer wall, outer
Pillar inwall is combined closely.
Above-mentioned waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, the working steel tube are reducer pipe, and waterproof layer is located at reducer pipe
The both ends of the both ends of heat-insulation layer between outer protection tube, waterproof layer and heat-insulation layer closely connect, waterproof layer and reducing pipe outer wall, outer
Pillar inwall is combined closely.
Above-mentioned waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, the working steel tube are threeway, waterproof layer be located at threeway with it is outer
The both ends of the both ends of heat-insulation layer between pillar, waterproof layer and heat-insulation layer closely connect, in waterproof layer and threeway outer wall, outer protection tube
Wall is combined closely.
Above-mentioned waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, the working steel tube are elbow or bend pipe, and waterproof layer is positioned at curved
The both ends of the both ends of head or the heat-insulation layer between bend pipe and outer protection tube, waterproof layer and heat-insulation layer closely connect, waterproof layer and elbow
Or bend pipe outer wall, outer protection tube inwall are combined closely.
The beneficial effects of the utility model are：
The both ends of heat-insulation layer of the utility model between working steel tube and outer protection tube and the work being connected with heat-insulation layer
Making on outer wall of steel pipe and brush or spray one layer of flexible waterproof material on outer protection tube inwall will be prefabricated as waterproof layer, waterproof layer
The both ends of the heat-insulation layer of direct-buried thermal insulation pipe are completely sealed off, and can effectively prevent water from entering heat-insulation layer, avoid insulation from imitating
Fruit declines, while can prevent the moisture in heat-insulation layer from causing corrosion to the tube wall of insulating tube, ensures the service life of insulating tube,
Reduce maintenance cost, servicing time and workload.
The flexible waterproof material that the utility model uses only is needed after insulating tube produces, in insulating tube heat-insulation layer two
End is brushed or sprayed, and production technology is convenient, and the mode of spraying can also improve the degree of automated production.
The utility model is simple in construction, waterproof effect is reliable, convenient for production, solves the prefabricated guarantor for facing insulating tube directly of tradition
The problem of warm Rotating fields make moist.
Brief description of the drawings
Fig. 1 is the structural representation that working steel tube of the present utility model is straight steel pipe；
Fig. 2 is the structural representation that working steel tube of the present utility model is fixed knot；
Fig. 3 is the structural representation that working steel tube of the present utility model is reducer pipe；
Fig. 4 is the structural representation that working steel tube of the present utility model is threeway；
Fig. 5 is the structural representation that working steel tube of the present utility model is elbow or bend pipe.
Marked in figure as follows：It is straight steel pipe 1, heat-insulation layer 2, waterproof layer 3, outer protection tube 4, fixed knot 5, reducer pipe 6, threeway 7, curved
First 8.
Embodiment
The utility model is made up of working steel tube, heat-insulation layer 2, outer protection tube 4 and waterproof layer 3.
Shown in figure, working steel tube, heat-insulation layer 2, outer protection tube 4 are wrapped up successively from inside to outside, and heat-insulation layer 2 plays insulation and made
With.Have waterproof layer 3 at 2 both ends of heat-insulation layer, waterproof layer 3 using the binding function of itself closely with working steel tube outer wall, protect
Warm layer end face, outer protection tube inwall are bonded together, and play water-proof function.
Shown in figure, waterproof layer 3 is flexible waterproof material, and the both ends of heat-insulation layer 2 are brushed or be sprayed on to flexible waterproof material
Working steel tube and outer protection tube 4 between, both ends, working steel tube outer wall and the outer protection tube inwall of flexible waterproof material and heat-insulation layer 2
Combine closely, the thickness of waterproof layer 3 is 0.1-5mm.
Shown in figure, working steel tube is straight steel pipe 1, or fixed knot 5, or reducer pipe 6, or threeway 7, or elbow 8, waterproof layer
The both ends of 3 heat-insulation layer 2 between these pipe fittings and outer protection tube 4, waterproof layer 3 are closely connected with the both ends of heat-insulation layer 2, waterproof
Outer wall, the outer protection tube inwall of layer 3 and these pipe fittings are combined closely.
The flexible waterproof material that one embodiment of the present utility model uses is condensed room temperature vulcanized silicone rubber（RTV silicon
Rubber）, with α during use, glue based on alpha, omega-dihydroxy polydimethyl siloxane, appropriate catalysis is added according to required hardening time
Agent, crosslinking agent condensation form.Catalyst can be one or two kinds of matched combineds of organotin catalysts and organotitanium,
Crosslinking agent typically selects ketoxime crosslinking agent, such as methyl tributanoximo silane.
Claims (6)
1. a kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting, it includes working steel tube, heat-insulation layer（2）, outer protection tube（4）, insulation
Layer（2）It is filled in working steel tube and outer protection tube（4）Between, it is characterised in that：In heat-insulation layer（2）The working steel tube at both ends and outer shield
Pipe（4）Between be laid with waterproof layer（3）, waterproof layer（3）For flexible waterproof material, insulation is brushed or be sprayed on to flexible waterproof material
Layer（2）The working steel tube and outer protection tube at both ends（4）Between, flexible waterproof material and heat-insulation layer（2）Both ends, working steel tube outer wall
Combined closely with outer protection tube inwall, waterproof layer（3）Thickness be 0.1-5mm.
2. waterproof prefabricated direct-buried thermal insulation pipe according to claim 1 and its pipe fitting, it is characterised in that：The working steel tube is
Straight steel pipe（1）, waterproof layer（3）Positioned at straight steel pipe（1）With outer protection tube（4）Between heat-insulation layer（2）Both ends, waterproof layer（3）With guarantor
Warm layer（2）Both ends closely connect, waterproof layer（3）Combined closely with straight steel pipe outer wall, outer protection tube inwall.
3. waterproof prefabricated direct-buried thermal insulation pipe according to claim 1 and its pipe fitting, it is characterised in that：The working steel tube is
Fixed knot（5）, waterproof layer（3）Positioned at fixed knot（5）With outer protection tube（4）Between heat-insulation layer（2）Both ends, waterproof layer（3）With
Heat-insulation layer（2）Both ends closely connect, waterproof layer（3）Combined closely with fixed knot outer wall, outer protection tube inwall.
4. waterproof prefabricated direct-buried thermal insulation pipe according to claim 1 and its pipe fitting, it is characterised in that：The working steel tube is
Reducer pipe（6）, waterproof layer（3）Positioned at reducer pipe（6）With outer protection tube（4）Between heat-insulation layer（2）Both ends, waterproof layer（3）With
Heat-insulation layer（2）Both ends closely connect, waterproof layer（3）Combined closely with reducing pipe outer wall, outer protection tube inwall.
5. waterproof prefabricated direct-buried thermal insulation pipe according to claim 1 and its pipe fitting, it is characterised in that：The working steel tube is
Threeway（7）, waterproof layer（3）Positioned at threeway（7）With outer protection tube（4）Between heat-insulation layer（2）Both ends, waterproof layer（3）With insulation
Layer（2）Both ends closely connect, waterproof layer（3）Combined closely with threeway outer wall, outer protection tube inwall.
6. waterproof prefabricated direct-buried thermal insulation pipe according to claim 1 and its pipe fitting, it is characterised in that：The working steel tube is
Elbow（8）Or bend pipe, waterproof layer（3）Positioned at elbow（8）Or bend pipe and outer protection tube（4）Between heat-insulation layer（2）Both ends, waterproof
Layer（3）With heat-insulation layer（2）Both ends closely connect, waterproof layer（3）Combined closely with elbow or bend pipe outer wall, outer protection tube inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648430.3U CN206889968U (en) | 2017-06-06 | 2017-06-06 | A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648430.3U CN206889968U (en) | 2017-06-06 | 2017-06-06 | A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889968U true CN206889968U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720648430.3U Active CN206889968U (en) | 2017-06-06 | 2017-06-06 | A kind of waterproof prefabricated direct-buried thermal insulation pipe and its pipe fitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591695A (en) * | 2018-07-20 | 2018-09-28 | 郭林轩 | Aerial and pipe gallery prefabricated thermal insulation fixed knot |
| CN116066764A (en) * | 2023-02-22 | 2023-05-05 | 河北君业科技股份有限公司 | Leakage detection and positioning method for thermal pipeline |
-
2017
- 2017-06-06 CN CN201720648430.3U patent/CN206889968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591695A (en) * | 2018-07-20 | 2018-09-28 | 郭林轩 | Aerial and pipe gallery prefabricated thermal insulation fixed knot |
| CN116066764A (en) * | 2023-02-22 | 2023-05-05 | 河北君业科技股份有限公司 | Leakage detection and positioning method for thermal pipeline |
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