CN213512615U - Clamping sleeve for vertical pipe heat tracing - Google Patents

Abstract

The utility model discloses a clamping sleeve for riser heat tracing, which comprises an inner pipe, an outer pipe, a steam pipe and a drain pipe; the inner pipe axially penetrates through the outer pipe, a steam interface is arranged on the side face of the outer pipe, a steam pipe is communicated with the steam interface, an end plate is arranged at an opening at the bottom of the outer pipe, a drain pipe is communicated with a drain outlet at the bottom of the outer pipe, and a drain valve group is arranged on the drain pipe; the outer tube comprises a plurality of sections, wherein adjacent sections of the outer tube are connected through metal expansion joints, and the jacketed pipe can meet the requirements of uniform heating and drainage smoothness.

Description

Clamping sleeve for vertical pipe heat tracing

Technical Field

The utility model belongs to medium companion's heat field relates to a riser companion's heat is with double-layered sleeve pipe.

Background

In the industrial field, when some fluid is conveyed, the heat dissipation loss is required to be reduced as much as possible, and the temperature drop of the conveyed fluid in a pipeline is ensured to be within a specified range. Referring to fig. 1, after one or more small-caliber heat tracing pipes through which steam or hot water is passed are fixed together with a heat traced pipe in the conventional heat tracing, the heat traced pipe is covered with heat-insulating cotton, which is likely to cause uneven heating of the heat traced fluid in the pipe or waste due to excessive steam consumption. The adoption jacket pipe on vertical pipeline, the space that will be unavoidable gathers a large amount of comdenstion water between end plate and steam pipe, causes hydrophobic not smooth, when the shut down restarts, can appear "water hammer" phenomenon, and serious person can destroy the pipeline, causes certain loss.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a riser companion's jacket pipe for heat, this jacket pipe can satisfy the requirement of being heated evenly, hydrophobic smooth and easy nature.

In order to achieve the purpose, the clamp sleeve for the heat tracing of the vertical pipe of the utility model comprises an inner pipe, an outer pipe, a steam pipe and a drain pipe;

the inner pipe axially penetrates through the outer pipe, a steam interface is arranged on the side face of the outer pipe, a steam pipe is communicated with the steam interface, an end plate is arranged at an opening at the bottom of the outer pipe, a drain pipe is communicated with a drain outlet at the bottom of the outer pipe, and a drain valve group is arranged on the drain pipe;

the outer pipe is composed of a plurality of sections, wherein the adjacent sections of the outer pipe are connected through metal expansion joints.

And the side surface of the inner pipe is provided with an impingement plate which is just opposite to the steam interface.

The inner tube is sleeved with a positioning plate.

The utility model discloses following beneficial effect has:

riser companion for heat jacket pipe when concrete operation, let in steam in to the outer tube through the steam interface, realize the companion's of inner tube heat, the circulation of steam is better simultaneously, the companion's heat is comparatively even. In addition, when the engine is stopped and restarted, the condensed water at the bottom of the outer pipe is pushed to the drain pipe through steam and then is discharged through the drain pipe, the drainage is smooth, and meanwhile, the outer pipe is composed of a plurality of sections, wherein the adjacent sections of the outer pipe are connected through metal expansion joints, so that the end strength of the jacketed pipe meets the requirement, meanwhile, the length of the outer pipe can be prolonged, the number of end plates is reduced, the risk caused by stress concentration at the end plates is reduced, the heat loss of the steam at the position of the existing jumper pipe can be reduced, and the number of supports on the sleeve is reduced.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

fig. 2 is a schematic structural diagram of the present invention.

Wherein, 1 is an inner pipe, 2 is an outer pipe, 3 is a metal expansion joint, 4 is an impingement baffle, 5 is a positioning plate, 6 is a steam pipe, 7 is a drain pipe, and 8 is a drain valve group.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 2, the jacket pipe for heat tracing of the vertical pipe of the present invention comprises an inner pipe 1, an outer pipe 2, a steam pipe 6 and a drain pipe 7; the inner pipe 1 axially penetrates through the outer pipe 2, a steam port is formed in the side face of the outer pipe 2, a steam pipe 6 is communicated with the steam port, an end plate is arranged at an opening at the bottom of the outer pipe 2, a drain pipe 7 is communicated with a drain outlet at the bottom of the outer pipe 2, and a drain valve group 8 is arranged on the drain pipe 7; the outer pipe 2 consists of a plurality of sections, wherein the adjacent sections of the outer pipe 2 are connected through metal expansion joints 3, the side surface of the inner pipe 1 is provided with a baffle 4, and the baffle 4 is opposite to the steam interface; the inner tube 1 is sleeved with a positioning plate 5.

The adjacent sections of the outer pipes 2 are connected through the metal expansion joints 3, so that the length of the outer pipes 2 is prolonged, meanwhile, the end plate strength of the jacketed pipe is ensured to meet requirements, and when the pipe is stopped and restarted, the introduced steam can push water in a water accumulation area at the bottom of the outer pipe to the drain valve group 8 and discharge the water.

The utility model has the advantages of it is following: 1) the water accumulation area of the vertical pipe area is greatly reduced, and the potential safety hazard is reduced; 2) the number of sleeves can be reduced, namely the number of end plates is reduced, and the risk of stress concentration at the end plates is reduced; 3) the number of the jumper pipes is reduced, namely the loss of steam transferred between the adjacent sleeves is reduced, and the steam is saved; 4) the number of the supports on the sleeve is reduced, and materials are saved.

Claims (3)

1. A jacket sleeve for heat tracing of a vertical pipe is characterized by comprising an inner pipe (1), an outer pipe (2), a steam pipe (6) and a drain pipe (7);

the inner pipe (1) penetrates through the outer pipe (2) along the axial direction, a steam interface is arranged on the side face of the outer pipe (2), a steam pipe (6) is communicated with the steam interface, an end plate is arranged at an opening at the bottom of the outer pipe (2), a drain pipe (7) is communicated with a drain outlet at the bottom of the outer pipe (2), and a drain valve group (8) is arranged on the drain pipe (7);

the outer pipe (2) is composed of a plurality of sections, wherein the adjacent sections of the outer pipe (2) are connected through metal expansion joints (3).

2. The riser heat tracing jacket sleeve according to claim 1, wherein a baffle plate (4) is provided on the side of the inner pipe (1), and the baffle plate (4) faces the steam connection.

3. The jacketed pipe for heat tracing of a riser according to claim 1, characterized in that a positioning plate (5) is sleeved on the inner pipe (1).

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