CN209909408U

CN209909408U - Device for improving heating uniformity of skin effect electric heat tracing system

Info

Publication number: CN209909408U
Application number: CN201920530637.XU
Authority: CN
Inventors: 李英伟; 王建军; 郭洋
Original assignee: Sinopec Engineering Group Co Ltd; Sinopec Nanjing Engineering Co Ltd
Current assignee: Sinopec Engineering Group Co Ltd; Sinopec Nanjing Engineering Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-01-07
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses an improve device of skin effect electric tracing system heating degree of consistency, the device include the process pipeline the outside of process pipeline is equipped with pipeline heat preservation and pipeline lagging casing by inside to outside in proper order, and skin effect type heat tracing cable is equipped with rather than supporting galvanized steel pipe, and is equipped with the cast aluminium radiator between process pipeline and the galvanized steel pipe. By adding the cast aluminum additional radiator between the process pipeline and the galvanized steel pipe matched with the skin effect type heat tracing cable, the area with overhigh local temperature of the medium is reduced, and the fault rate of the long-distance pipeline is further reduced.

Description

Device for improving heating uniformity of skin effect electric heat tracing system

Technical Field

The utility model belongs to the technical field of electrical design and installation, concretely relates to improve device of skin effect electric tracing system heating degree of consistency.

Background

The skin effect type electric tracing system is generally used in long-distance pipeline tracing places, and due to the fact that unit cost is too high, in places with the same design temperature requirement, owner units can select schemes which are often low in cost. For example, when a plurality of heat tracing bands are selected, a single heat tracing band is selected, that is, the surface temperature of the heat tracing band is increased to compensate the same heat, which causes the local temperature of the medium in the pipeline to exceed the allowable temperature, and further causes crystallization or carbonization of the medium, and causes reduction of the flow rate of the pipeline in time, as shown in fig. 1.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that above-mentioned exists, provide a device that improves skin effect electric tracing system heating degree of consistency.

The purpose of the utility model can be realized by the following technical scheme:

a device for improving the heating uniformity of a skin effect electric heat tracing system comprises a process pipeline, wherein a pipeline heat preservation layer and a pipeline heat preservation shell are sequentially arranged on the outer side of the process pipeline from inside to outside, a skin effect type heat tracing cable is provided with a galvanized steel pipe matched with the skin effect type heat tracing cable, and an aluminum casting heat radiation body is arranged between the process pipeline and the galvanized steel pipe.

The utility model discloses among the technical scheme: the process pipeline is internally provided with a pipeline medium.

Further, the heat tracing medium is liquid asphalt or sulfur.

The utility model discloses among the technical scheme: the galvanized steel pipe is positioned in the heat insulation layer.

The utility model discloses among the technical scheme: and the area enclosed by the circumscribed surfaces of the galvanized steel pipe and the process pipeline and the galvanized steel pipe and the process pipeline is the mounting position of the cast aluminum radiator.

The utility model discloses among the technical scheme: the mounting mode of the cast aluminum radiator is welding.

The utility model has the advantages that: by adding the cast aluminum additional radiator which has good heat radiation performance, low manufacturing cost and easy processing between the process pipeline and the galvanized steel pipe matched with the skin effect type heat tracing cable, the area with overhigh local temperature of the medium is reduced, and the fault rate of the long-distance pipeline is further reduced.

Drawings

FIG. 1 is a schematic sectional view of local overheating of a medium in a pipe of a skin effect electric heat tracing system.

Fig. 2 is a sectional view of the pipeline of the present invention.

In FIG. 1, the labels: 1, a pipeline heat-insulating shell; 2, pipeline heat insulation material; 3, a process pipeline; 4, medium in the pipeline; 5, indicating a local high-temperature area of a medium in the pipeline; 6 skin effect type electric heat tracing cable; 7 galvanized steel pipe.

In FIG. 2, the notation: 1a pipeline heat-insulating shell; 2a pipeline heat-insulating material; 3a process piping; 4a medium in the pipeline; 6a skin effect type electric heat tracing cable; 7a galvanized steel pipe; 8a cast aluminum add heat sink.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, the device for improving the heating uniformity of the skin effect electric heat tracing system comprises a process pipeline (3a), a pipeline heat-insulating layer (2a) and a pipeline heat-insulating shell (1a) are sequentially arranged on the outer side of the process pipeline (3a) from inside to outside, a galvanized steel pipe (7a) matched with the skin effect electric heat tracing cable (6a) is arranged, and an aluminum casting heat radiator is arranged between the process pipeline (3a) and the galvanized steel pipe (7 a). The process pipeline (3a) is internally provided with a medium (4a) (liquid asphalt or sulfur, etc.) needing heat tracing. The galvanized steel pipe (7a) is positioned in the heat-insulating layer (2 a). The region enclosed by the external tangent plane of the galvanized steel pipe (7a) and the process pipeline (3a) and the galvanized steel pipe (7a) and the process pipeline (3a) is the installation position of the cast aluminum radiator (8 a). The aluminum-cast heat radiator (8a) is mounted in the manner of the aluminum-cast heat radiator (8 a).

To sum up, the utility model discloses an between the supporting galvanized steel pipe 7a of process line 3a and skin effect type electric heat tracing cable, arrange cast aluminium additional radiator 8a (8a should contact with 7a and 3a furthest, recommend interior circle and 7a excircle to match), make the interior medium 4a of process line the temperature of being heated tend to evenly, avoid because the too high medium crystallization or the problem of carbonization that causes of local temperature.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a device that improves skin effect electric tracing system heating degree of consistency which characterized in that: the device comprises a process pipeline (3a), a pipeline heat-insulating layer (2a) and a pipeline heat-insulating shell (1a) are sequentially arranged on the outer side of the process pipeline (3a) from inside to outside, a skin effect type electric tracing cable (6a) is provided with a galvanized steel pipe (7a) matched with the skin effect type electric tracing cable, and a cast aluminum radiator (8a) is arranged between the process pipeline (3a) and the galvanized steel pipe (7 a).

2. The apparatus of claim 1 for improving the heating uniformity of a skin effect electric heat tracing system, wherein: the process pipeline (3a) is internally provided with a medium needing heat tracing.

3. The apparatus of claim 1 for improving the heating uniformity of a skin effect electric heat tracing system, wherein: the galvanized steel pipe (7a) is positioned in the heat-insulating layer (2 a).

4. The apparatus of claim 2 wherein the heating uniformity of the skin effect electric trace heating system is increased by: the heat tracing medium is liquid asphalt or sulfur.

5. The apparatus of claim 1 for improving the heating uniformity of a skin effect electric heat tracing system, wherein: the region enclosed by the external tangent plane of the galvanized steel pipe (7a) and the process pipeline (3a) and the galvanized steel pipe (7a) and the process pipeline (3a) is the installation position of the cast aluminum radiator (8 a).

6. The apparatus of claim 5 for improving heating uniformity of a skin effect electric heat tracing system, wherein: the aluminum-cast heat radiator (8a) is mounted in the manner of the aluminum-cast heat radiator (8 a).