CN207378273U - A kind of direct-buried thermal insulation pipe duct device - Google Patents
A kind of direct-buried thermal insulation pipe duct device Download PDFInfo
- Publication number
- CN207378273U CN207378273U CN201721366466.9U CN201721366466U CN207378273U CN 207378273 U CN207378273 U CN 207378273U CN 201721366466 U CN201721366466 U CN 201721366466U CN 207378273 U CN207378273 U CN 207378273U
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- Prior art keywords
- pipeline
- direct
- thermal insulation
- insulating layer
- duct device
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- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
The utility model belongs to pipeline laying technical field more particularly to a kind of direct-buried thermal insulation pipe duct device.The device includes pipeline; in trench, the pipeline includes body, insulating layer and protective layer for the pipeline laying, and the insulating layer and the protective layer are successively set on the periphery of the body; the insulating layer is made of polyurethane material, and the protective layer is made of polyethylene material.A kind of direct-buried thermal insulation pipe duct device of the utility model; since the periphery of the body of pipeline therein is provided with insulating layer and protective layer; since insulating layer therein is made of polyurethane material; with good water proofing property; to prevent pipeline from making moist, heat waste is reduced, the protective layer in insulating layer periphery can prevent insulating layer and body from being destroyed by mechanical hard object; and protective layer also has the service life of anti-corrosion waterproof made of polyethylene material, to increase the service life of pipeline.
Description
Technical field
The utility model belongs to pipeline laying technical field more particularly to a kind of direct-buried thermal insulation pipe duct device.
Background technology
The pipeline of China's heating network over the years is carried out using the system of laying of pipe support or trench, but due to using pipe support
Roughing-in is to carry out on the ground, can occupy ground space, and the processing underground obstacle that meeting is excessive, and it is dynamic to increase civil engineering installation
Workload is moved, is unfavorable for environmental protection, therefore, the pipeline more come the more is carried out using the system of laying of trench.
In the process of implementing the utility model, it is found by the applicant that at least having the following disadvantages in the prior art：
In the prior art, the water imbibition using the pipeline of trench laying is larger, for a long time using rear pipeline moisture-sensitive, makes moist
The thermal conductivity factor of pipeline afterwards increases, and amount of heat is caused to waste, and some places cause pipeline for a long time due to trench blocking
It impregnates in water, insulating layer is caused to come off, makes pipeline heavy corrosion, reduces the service life of pipeline.
Utility model content
For the above-mentioned prior art there are problem, the utility model, which provides a kind of reduction heat waste, can simultaneously increase using the longevity
The direct-buried thermal insulation pipe duct device of life.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of direct-buried thermal insulation pipe duct device, described device include pipeline, and the pipeline laying is in trench, the pipeline bag
Body, insulating layer and protective layer are included, the insulating layer and the protective layer are successively set on the periphery of the body, the heat preservation
Layer is made of polyurethane material, and the protective layer is made of polyethylene material.
Further, the pipeline is the prefabricated laying for forming, so can directly carrying out pipeline at the scene, is applied with shortening
The work cycle.
Further, the body is one kind of seamless steel pipe, spiral welded pipe or straight seam welded pipe.
Further, fine sand soil layer and back fill course, the pipeline laying are disposed in the trench from bottom to up
In the fine sand soil layer.
Further, the pipeline is laid with two and is listed in the fine sand soil layer side by side.
Further, the lateral cross section of the trench is inverted isosceles trapezoid.
Further, the waist edge of the trench and the angle of horizontal plane are 60 °.
The beneficial effects of the utility model are：
A kind of direct-buried thermal insulation pipe duct device of the utility model, since the periphery of the body of pipeline therein is provided with heat preservation
Layer and protective layer since insulating layer therein is made of polyurethane material, have good water proofing property, to prevent pipeline from making moist,
Heat waste is reduced, the protective layer in insulating layer periphery can prevent insulating layer and body from being destroyed by mechanical hard object, and by polyethylene
Protective layer made of material also has the service life of anti-corrosion waterproof, to increase the service life of pipeline.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure diagram of direct-buried thermal insulation pipe duct device of the utility model embodiment.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Fig. 1 is a kind of structure diagram of direct-buried thermal insulation pipe duct device of the utility model embodiment, referring to Fig. 1, this reality
Include pipeline with a kind of direct-buried thermal insulation pipe duct device of new embodiment, the pipeline laying is in trench 4, and pipeline includes body
1st, insulating layer 2 and protective layer 3, insulating layer 2 and protective layer 3 are successively set on the periphery of body 1, and insulating layer 2 is polyurethane material
It is made, protective layer 3 is made of polyethylene material.
A kind of direct-buried thermal insulation pipe duct device of the utility model embodiment, since the periphery of the body of pipeline therein is set
There are insulating layer and protective layer, since insulating layer therein is made of polyurethane material, there is good water proofing property, to prevent pipeline
It making moist, reduces heat waste, the protective layer in insulating layer periphery can prevent insulating layer and body from being destroyed by mechanical hard object, and by gathering
Protective layer made of ethylene material also has the service life of anti-corrosion waterproof, to increase the service life of pipeline.
The body 1 of the utility model embodiment can select seamless steel pipe, spiral welded pipe according to design and the demand of client
Or one kind of straight seam welded pipe, and on the surface of body by impeller blasting process, to ensure the bright and clean of the outer surface of body 1
Degree.
The insulating layer 2 of the utility model embodiment may be employed high pressure foaming machine and be formed between body 1 and outer jacket 3
Cavity in, disposable to inject rigid polyurethane foam stoste, it acts as waterproof, heat preservation and support heat supply network dead weights.
The protective layer of the utility model embodiment, the plastic pipe that certain wall thickness can be prefabricated by polyethylene are made.
Each component that the utility model embodiment forms pipeline can form for prefabrication, can so facilitate scene
Construction period is accelerated in construction.
Fine sand soil layer 5 and back fill course 6 can be disposed with from bottom to up in the trench 4 of the utility model embodiment,
Pipeline laying is in fine sand soil layer 5, during construction, by pipeline laying in fine sand soil layer 5, is layered trench using back fill course 6
Compacting.
The pipeline of the utility model embodiment can be laid with two and be listed in fine sand soil layer 5 side by side, it is of course also possible to there is it
Remaining pipeline laying mode, the utility model embodiment are without limitation.
The lateral cross section of the trench 4 of the utility model embodiment is inverted isosceles trapezoid, and the waist edge and level of trench 4
The angle in face is 60 °, can so facilitate the construction of the excavation and pipeline of trench, certainly, the trench 4 of the utility model embodiment
Lateral cross section can be changed according to the specific environment of construction, the utility model embodiment is without limitation.
During pipeline construction, it should confirm that stent, hanger installation site should be correct, burying should be secured, and sliding surface should be clean smooth,
There must not be crooked and bite phenomenon；Offset direction, offset and the steering capability of movable support should meet design requirement；Pipeline
Stent, the tolerance of hanger installation should meet code requirement, and support bracket fastened inspection should fill in record.
After pipeline construction, it need to make a strength test：After pressure in pipeline is risen to 1.5 times of operating pressure,
Voltage stabilizing 10 divide in after to have ne-leakage as standard.
After pipeline construction, also need to carry out leak test：When pressure in pipeline is down to operating pressure, 1kg is used
Hand hammer weld seam is carried out one by one around weld seam to beat inspection, be no more than 0.2 air in 30 minutes ne-leakages and pressure drop
Pressure is qualification.Pressure testing record is carried out by code requirement.
The field joint heat preservation construction of pipeline：The heat preservation of insulating tube field joint must can carry out after pressure testing qualification, keep the temperature
Layer has two methods of foam-in-place construction and heat insulation tile construction, no matter using which kind of method construction, annular space cannot all occurs,
The defects of cracking, delamination, it is necessary to assure the globality of connector, tightness, water proofing property.
In conclusion the direct-buried thermal insulation pipe duct device of the utility model embodiment, all of pipe support or trench laying can overcome the disadvantages that
More defects to reduce project cost, reduce thermal losses, and energy saving.
Embodiment provided above is the better embodiment of the utility model, only is used for facilitating illustrating the utility model, and
The non-limitation made to the utility model in any form, any those of ordinary skill in the art, if not departing from
In the range of the utility model carries technical characteristic, locally change or repair using made by the utility model disclosed technology content
The equivalent embodiment of decorations, and without departing from the technical characteristics of the utility model content, still fall within the utility model technical characteristic
In the range of.
Claims (7)
1. a kind of direct-buried thermal insulation pipe duct device, described device includes pipeline, and in trench (4), feature exists for the pipeline laying
In the pipeline includes body (1), insulating layer (2) and protective layer (3), and the insulating layer (2) and the protective layer (3) are successively
The periphery of the body (1) is arranged on, the insulating layer (2) is made of polyurethane material, and the protective layer (3) is polyethylene material
Matter is made.
2. a kind of direct-buried thermal insulation pipe duct device according to claim 1, which is characterized in that the pipeline forms to be prefabricated.
3. a kind of direct-buried thermal insulation pipe duct device according to claim 1, which is characterized in that the body (1) is seamless steel
One kind of pipe, spiral welded pipe or straight seam welded pipe.
4. according to a kind of direct-buried thermal insulation pipe duct device of claim 1-3 any one of them, which is characterized in that the trench (4)
Fine sand soil layer (5) and back fill course (6) are inside disposed with from bottom to up, and the pipeline laying is in the fine sand soil layer (5).
5. a kind of direct-buried thermal insulation pipe duct device according to claim 4, which is characterized in that the pipeline is laid with two side by side
It is listed in the fine sand soil layer (5).
A kind of 6. direct-buried thermal insulation pipe duct device according to claim 5, which is characterized in that the transverse cutting of the trench (4)
Face is inverted isosceles trapezoid.
7. a kind of direct-buried thermal insulation pipe duct device according to claim 6, which is characterized in that the waist edge of the trench (4) and
The angle of horizontal plane is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721366466.9U CN207378273U (en) | 2017-10-19 | 2017-10-19 | A kind of direct-buried thermal insulation pipe duct device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721366466.9U CN207378273U (en) | 2017-10-19 | 2017-10-19 | A kind of direct-buried thermal insulation pipe duct device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378273U true CN207378273U (en) | 2018-05-18 |
Family
ID=62335838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721366466.9U Expired - Fee Related CN207378273U (en) | 2017-10-19 | 2017-10-19 | A kind of direct-buried thermal insulation pipe duct device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378273U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873229A (en) * | 2019-11-23 | 2020-03-10 | 深圳市东深工程有限公司 | Laying structure of water supply and drainage engineering pipeline |
| CN112628518A (en) * | 2020-12-31 | 2021-04-09 | 北京希福电气安装工程有限公司 | Anti-freezing structure of buried pipeline and construction method thereof |
| CN114484152A (en) * | 2022-01-13 | 2022-05-13 | 北京城建集团有限责任公司 | Pipeline heat-preservation construction process |
-
2017
- 2017-10-19 CN CN201721366466.9U patent/CN207378273U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873229A (en) * | 2019-11-23 | 2020-03-10 | 深圳市东深工程有限公司 | Laying structure of water supply and drainage engineering pipeline |
| CN112628518A (en) * | 2020-12-31 | 2021-04-09 | 北京希福电气安装工程有限公司 | Anti-freezing structure of buried pipeline and construction method thereof |
| CN114484152A (en) * | 2022-01-13 | 2022-05-13 | 北京城建集团有限责任公司 | Pipeline heat-preservation construction process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Direct -burried hot oil line device Effective date of registration: 20190910 Granted publication date: 20180518 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan Zhuo into energy-saving Polytron Technologies Inc Registration number: Y2019420000015 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210715 Granted publication date: 20180518 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN ZHUOCHENG ENERGY-SAVING TECH Co.,Ltd. Registration number: Y2019420000015 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20201019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |