CN217634596U

CN217634596U - Direct-buried heat supply pipeline with good heat insulation effect

Info

Publication number: CN217634596U
Application number: CN202221683170.0U
Authority: CN
Inventors: 傅玉清; 鞠学峰; 王旭峰
Original assignee: Longji Energy Group Co ltd
Current assignee: Longji Energy Group Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-21
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses an effectual direct-burried heat supply pipeline keeps warm, establish the protecting tube in the working tube outside including working tube, cover, be equipped with the heat preservation between working tube and the protecting tube, the inboard of working tube is equipped with corrosion resistant layer, the spiral coils there is the heating tube on the lateral wall of working tube, the heating tube intussuseption is filled with insulating gas, the outside cover of heating tube is equipped with the heat-conducting section of thick bamboo. Compared with the prior art, the utility model the advantage lie in: the arrangement of the protective pipe avoids the damage of external soil to the internal working pipe; the heating pipe is spirally wound on the outer side of the working pipe, the heating pipe is fully contacted with the working pipe, and heat-insulating gas is filled, so that compared with other materials, carbon dioxide has the functions of heat absorption and heat insulation, the influence on the temperature on the outer side of the working pipe can be reduced, and the service life of a heat supply pipeline is prolonged; the quality of steam is guaranteed and transmission is normally carried out due to the arrangement of the heat preservation layer.

Description

Direct-buried heat supply pipeline with good heat preservation effect

Technical Field

The utility model relates to a thermal insulation pipeline technical field specifically indicates an effectual direct burial heat supply pipeline keeps warm.

Background

All pipelines for conveying steam or hot water are called heat supply pipelines, and the tasks of the heat supply pipelines are as follows: the heat energy produced by the boiler is delivered to indoor heat utilization equipment through heating media such as steam, hot water and the like so as to meet the requirements of production and life. The medium flowing in the pipe can be divided into steam and hot water pipes. It can be divided into low-pressure, medium-pressure and high-pressure pipelines according to different working pressures. The heat supply pipeline can be divided into an indoor heat supply pipeline and an outdoor heat supply pipeline according to different laying positions. The most prominent characteristic of the hot water and steam pipeline is the thermal expansion and contraction of the pipeline caused by the temperature change. When the pipeline expands with heat and contracts with cold, great push (pull) stress is generated on the fixed points at the two ends of the pipeline, so that the pipeline deforms and even the bracket is damaged. The existing heat supply pipeline has poor heat insulation effect, namely, the heat insulation is simply carried out through resin or polyurethane materials, the treatment mode is single, and particularly, the heat insulation effect can not be well realized in a low-temperature environment on the treatment of the underground heat supply pipeline.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, provide a direct burial formula heat supply pipeline that keeps warm effectually.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a direct-burried heat supply pipeline that effectual keeps warm, establishes the protecting tube in the working tube outside including working tube, cover, be equipped with the heat preservation between working tube and the protecting tube, the inboard of working tube is equipped with corrosion resistant layer, the spiral coils on the lateral wall of working tube has the heating tube, the heating tube intussuseption is filled with insulating gas, the outside cover of heating tube is equipped with a heat conduction section of thick bamboo, be equipped with a plurality of small openings on the heat conduction section of thick bamboo, be equipped with the support bar between heat conduction section of thick bamboo and the protecting tube, the support bar evenly arranges along the circumferencial direction, the heat preservation is filled in the clearance between working tube and heat conduction section of thick bamboo.

As an improvement, the outer side of the protective pipe is wound with a damp-proof and flame-retardant composite aluminum foil.

As a refinement, the insulating gas is carbon dioxide.

As an improvement, the supporting strips are arranged in a double number mode.

As an improvement, six supporting bars are arranged.

Compared with the prior art, the utility model the advantage lie in: the arrangement of the protective pipe avoids the damage of external soil to the internal working pipe; the heating pipe is spirally wound on the outer side of the working pipe, and is fully contacted with the working pipe, and the heat preservation gas is filled, so that compared with other materials, the carbon dioxide has the functions of heat absorption and heat insulation, the influence of the temperature on the outer side of the working pipe can be reduced, and the service life of a heat supply pipeline is further prolonged; the arrangement of the heat-insulating layer ensures the quality of the steam and the normal transmission; the setting of support bar, the pressure that the homodisperse protective tube received reduces the damage to the working pipe, and the pressure-bearing effect of working pipe is better.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a direct-buried heat supply pipeline with good heat preservation effect.

Fig. 2 is a schematic structural view of a direct-buried heat supply pipeline with good heat preservation effect.

As shown in the figure: 1. the device comprises a working pipe, 2 a protective pipe, 3 a heat-insulating layer, 4 a corrosion-resistant layer, 5 a heating pipe, 6 a heat-conducting cylinder, 7 a leak hole, 8 a supporting bar, 9 and a composite aluminum foil.

Detailed Description

The direct-buried heat supply pipeline with good heat preservation effect of the present invention will be further described in detail with reference to the attached drawings.

Combine the attached drawing, a direct-burried heat supply pipeline that heat preservation is effectual, establish the protecting tube 2 in the working tube 1 outside including working tube 1, cover, be equipped with heat preservation 3 between working tube 1 and the protecting tube 2, the inboard of working tube 1 is equipped with corrosion resistant layer 4, the spiral coils on the lateral wall of working tube 1 has heating tube 5, the intussuseption of heating tube 5 is filled with insulating gas, the outside cover of heating tube 5 is equipped with heat-conducting tube 6, be equipped with a plurality of small openings 7 on the heat-conducting tube 6, be equipped with support bar 8 between heat-conducting tube 6 and the protecting tube 2, support bar 8 evenly arranges along the circumferencial direction, heat preservation 3 is filled in the clearance between working tube 1 and heat-conducting tube 6.

And the outer side of the protection pipe 2 is wound with a damp-proof and flame-retardant composite aluminum foil 9.

The heat preservation gas is carbon dioxide.

The support bars 8 are arranged in a double number.

Six support bars 8 are provided.

When the utility model is implemented, the heating pipe 5 is spirally coiled on the outer side of the working pipe 1 and is fully contacted with the working pipe 1, and compared with other materials, the filling of the heat preservation gas has the functions of heat absorption and heat insulation by carbon dioxide, thereby ensuring that the influence of the temperature on the outer side of the working pipe 1 is weakened, and further prolonging the service life of the heat supply pipeline; the heat conducting cylinder 6 can not only transfer temperature, but also play a role in fixing the installation of the supporting bars 8; the heat insulation layer 3 is arranged to ensure the quality of steam and normally transmit the steam; the arrangement of the supporting bars 8 can uniformly disperse the pressure borne by the protective pipe 2, reduce the damage to the working pipe 1 and ensure that the pressure bearing effect of the working pipe 1 is better; the arrangement of the protective pipe 2 avoids the damage of external soil to the internal working pipe 1; the winding of the composite aluminum foil 9 effectively realizes moisture protection at the bottom of the ground.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a direct burial formula heat supply pipeline that heat preservation is effectual, establishes protecting tube (2) in the working tube (1) outside including working tube (1), cover, be equipped with heat preservation (3), its characterized in that between working tube (1) and protecting tube (2): the inboard of working tube (1) is equipped with corrosion resistant layer (4), the spiral coils on the lateral wall of working tube (1) has heating tube (5), heating tube (5) intussuseption is filled with the heat preservation gas, the outside cover of heating tube (5) is equipped with heat-conducting cylinder (6), be equipped with a plurality of small openings (7) on heat-conducting cylinder (6), be equipped with support bar (8) between heat-conducting cylinder (6) and protective tube (2), support bar (8) are evenly arranged along the circumferencial direction, heat preservation (3) are filled in the clearance between working tube (1) and heat-conducting cylinder (6).

2. The direct burial heat supply pipeline with good heat preservation effect as claimed in claim 1, characterized in that: and a moisture-proof and flame-retardant composite aluminum foil (9) is wound on the outer side of the protective pipe (2).

3. The direct burial heat supply pipeline with good heat preservation effect as claimed in claim 1, characterized in that: the heat preservation gas is carbon dioxide.

4. The direct burial heat supply pipeline with good heat preservation effect as claimed in claim 1, characterized in that: the support bars (8) are arranged in a double number.

5. The direct burial heat supply pipeline with good heat preservation effect as claimed in claim 4, characterized in that: six supporting bars (8) are arranged.