CN215410809U

CN215410809U - Hydrophobic structure of steam pipeline

Info

Publication number: CN215410809U
Application number: CN202121000424.XU
Authority: CN
Inventors: 桂承国; 罗西华
Original assignee: Chongqing Jianfeng New Material Co Ltd
Current assignee: Chongqing Jianfeng New Material Co Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-01-04
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a drainage structure of a steam pipeline, which comprises the steam pipeline, wherein a rotary compensator is arranged on the steam pipeline, the drainage structure also comprises a water collecting well, the water collecting well is arranged at the low end of the gradient section of the steam pipeline, one port of the water collecting well is connected with a path of starting drainage pipeline, the other port of the water collecting well is connected with a path of frequent drainage pipeline, and a steam trap is arranged on the frequent drainage pipeline; and isolation valves are arranged on the starting drainage pipeline and the frequent drainage pipeline. The utility model improves the hydrophobic effect and avoids the water attack condition.

Description

Hydrophobic structure of steam pipeline

Technical Field

The utility model relates to the field of heat distribution pipelines, in particular to a hydrophobic structure of a steam pipeline.

Background

The phenomenon of liquefaction or condensation of partial steam due to temperature reduction can occur in the steam conveying process, when the flowing direction is changed under the conditions of a valve, an expansion joint, a turning or upward pipe section and the like, water drops collide with a pipe fitting or a pipe at high speed, so that the water hammer condition can be generated, the vibration phenomenon can occur, the tightness of a pipe fitting welding opening can be damaged in serious conditions, and steam leakage can be caused. Therefore, it is particularly important that the conduit is hydrophobic.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a hydrophobic structure of a steam pipeline, which has a simple structure and prevents steam from leaking.

The technical scheme of the utility model is as follows:

a drainage structure of a steam pipeline comprises the steam pipeline, wherein a rotary compensator is arranged on the steam pipeline, the drainage structure further comprises a water collecting well, the water collecting well is arranged at the low end of the gradient section of the steam pipeline, one port of the water collecting well is connected with a starting drainage pipeline, the other port of the water collecting well is connected with a frequent drainage pipeline, and a steam trap is arranged on the frequent drainage pipeline; and isolation valves are arranged on the starting drainage pipeline and the frequent drainage pipeline.

Further, the sump is disposed at a front end of the rotary compensator.

Further, the sump is disposed at a turn of the steam pipe.

Further, the starting drainage pipeline is connected to the lower end of the water collecting well, and the frequent drainage pipeline is connected to the side face of the water collecting well.

Further, the pipe diameter of the starting drain pipeline is larger than that of the regular drain pipeline.

Further, the starting drain pipeline adopts DN80 pipe, and the pipe diameter of the constant drain pipeline adopts DN50 pipe.

Further, the number of the isolation valves is two.

Adopt above-mentioned technical scheme to have following beneficial effect:

according to the utility model, the starting drainage pipeline and the frequent drainage pipeline are arranged through the water collecting well, drainage is carried out through the two pipelines, liquefied or condensed water is timely discharged out by the steam pipeline, the phenomenon of water hammer in the steam pipeline is avoided, the safety and the sealing performance of steam pipeline transportation are ensured, and the leakage of the rotary compensator is avoided. The maintenance cost caused by leakage of the rotary compensator is reduced by 50 ten thousand yuan each year, the steam loss is reduced by 60 ten thousand yuan, and the total saving is about 110 ten thousand yuan.

The following description is further described in conjunction with the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of a steam pipeline with a sump at a turn according to the present invention;

FIG. 2 is a schematic structural diagram of a steam pipeline provided with a water collecting well at a slope section according to the present invention.

In the attached drawing, 1 is a steam pipeline, 2 is a water collecting well, 3 is a starting drainage pipeline, 4 is a frequent drainage pipeline, 5 is an isolation valve, and 6 is a steam trap.

Detailed Description

Specific example 1:

referring to fig. 1 and 2, the drainage structure of a steam pipeline comprises a steam pipeline 1 and a water collection well 2, wherein a rotary compensator is arranged on the steam pipeline 1, the water collection well 2 is arranged at the lower end of the gradient section of the steam pipeline 1, and the water collection well 2 is arranged at the front end of the rotary compensator. The water collecting well 2 is arranged at the turning of the steam pipeline 1. One of the ports of the water collecting well 2 is connected with a path of starting hydrophobic pipeline 3, the other port is connected with a path of frequently hydrophobic pipeline 4, the starting hydrophobic pipeline 3 is connected with the lower end of the water collecting well 2, and the frequently hydrophobic pipeline 4 is connected with the side surface of the water collecting well 1, in the specific embodiment: the starting drain pipeline 3 adopts DN80 pipe, and the pipe diameter of the regular drain pipeline 4 adopts DN50 pipe. And a steam trap 6 is arranged on the frequent drainage pipeline 4, so that the drainage effect is improved. The starting drain pipeline 3 and the frequent drain pipeline 4 are both provided with two isolation valves 5, the two isolation valves 5 are used for reliable isolation, one valve can be fully opened before operation, and the other valve can be adjusted. In the embodiment, the isolation valve is an on-off valve.

The working principle of the utility model is as follows: opening an isolation valve on a starting drain pipeline when a steam pipeline is heated before operation; after the steam pipeline is put into operation, the isolation valve on the starting drain pipeline is closed, and then the isolation valve on the frequent drain pipeline is opened.

According to the utility model, the water collecting wells are arranged at the three positions, and the starting drainage pipeline and the frequent drainage pipeline which are connected with the water collecting wells are used for performing dispersed drainage, so that the drainage effect is improved, liquefied or condensed water is discharged in time, and the phenomenon of water hammer in a steam pipeline is avoided.

Claims

1. The utility model provides a steam conduit's hydrophobic structure, includes steam conduit, the last rotary compensator that is equipped with of steam conduit, its characterized in that: the steam pipeline system is characterized by further comprising a water collecting well, wherein the water collecting well is arranged at the lower end of the gradient section of the steam pipeline, one port of the water collecting well is connected with one path of starting drainage pipeline, the other port of the water collecting well is connected with one path of frequent drainage pipeline, and a steam trap is arranged on the frequent drainage pipeline; and isolation valves are arranged on the starting drainage pipeline and the frequent drainage pipeline.

2. The hydrophobic structure of the steam line of claim 1, wherein: the sump is disposed at a front end of the rotary compensator.

3. The hydrophobic structure of the steam line of claim 1, wherein: the water collecting well is arranged at the turning position of the steam pipeline.

4. The hydrophobic structure of the steam pipe of claim 1, 2 or 3, wherein: the starting drainage pipeline is connected to the lower end of the water collecting well, and the frequent drainage pipeline is connected to the side face of the water collecting well.

5. The hydrophobic structure of the steam pipe of claim 1, 2 or 3, wherein: the pipe diameter of the starting drain pipeline is larger than that of the frequent drain pipeline.

6. The hydrophobic structure of the steam pipe of claim 5, wherein: the starting drain pipeline adopts DN80 pipe, and the pipe diameter of the constant drain pipeline adopts DN50 pipe.

7. The hydrophobic structure of the steam pipe of claim 1, 2 or 3, wherein: the number of the isolation valves is two.