CN218494771U

CN218494771U - Steam supply pipeline assembly of thermal power plant

Info

Publication number: CN218494771U
Application number: CN202221099012.0U
Authority: CN
Inventors: 马杰
Original assignee: Dandong Power Plant of Huaneng International Power Co Ltd
Current assignee: Dandong Power Plant of Huaneng International Power Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-02-17
Anticipated expiration: 2032-05-10

Abstract

The utility model provides a steam supply pipeline assembly of thermal power plant, including the steam supply pipeline, heating pipe pipeline and expansion pipeline, the steam supply pipeline is the circuitous setting of U font, expansion pipeline is provided with a plurality of, the outside of steam supply pipeline is located to the even cover of expansion pipeline, every expansion pipeline below bottom is connected and is provided with the steam trap, steam supply pipeline income steam port is connected with outside thermal power plant, steam supply pipeline is close to thermal power plant one side and connects and be provided with the main valve of steam supply, heating pipe pipeline one end and the main valve of steam supply are close to the steam supply pipeline of thermal power plant one side link up and are connected, heating pipe pipeline is close to the main valve one end of steam supply and is connected and is provided with the main valve of heating pipe, even through connection is provided with the heating pipe branch pipe on the heating pipe pipeline, every heating pipe branch pipe goes out the steam port and goes into the steam port and link up with the expansion pipeline top and is connected, all be provided with the heating pipe branch valve on every heating pipe branch pipe, carry out each simultaneous heating pipe section to the steam supply pipeline through the heating pipe pipeline, shorten the required time of heating pipe by a wide margin, promote heating pipe efficiency.

Description

Steam supply pipeline assembly of thermal power plant

Technical Field

The utility model relates to a supply the technical field of vapour pipeline subassembly, specifically supply vapour pipeline subassembly for thermal power plant.

Background

The steam of a thermal power plant is often used as a heating steam source for production steam and heating water for residents in some plants besides power generation, the thermal power plant is often far away from steam users, so that required steam pipelines are also long, before the steam is introduced into the pipelines, the temperature rise rate of the pipelines needs to be controlled in order to prevent the pipelines from being deformed and damaged due to large thermal stress generated by the pipelines, and therefore the pipelines need to be heated before a large amount of steam is formally introduced into the pipelines. The existing heating pipe mode is characterized in that a small amount of steam is introduced from the starting end of a steam pipeline, and the heating pipes are arranged section by section from front to back.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a steam supply pipeline component of a thermal power plant for solve the technical problem who provides in the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

steam supply pipeline assembly of thermal power plant, including steam supply pipeline, heating pipe pipeline and expansion pipe, steam supply pipeline is the circuitous setting of U font, expansion pipe is provided with a plurality of, the outside of steam supply pipeline is located to the even cover of expansion pipe, every expansion pipe below bottom connection is provided with the steam trap, steam supply pipeline steam inlet is connected with outside thermal power plant, steam supply pipeline is close to one side connection of thermal power plant and is provided with the main valve of steam supply, heating pipe pipeline one end with the main valve of steam supply is close to the steam supply pipeline link up of thermal power plant one side and is connected, heating pipe pipeline is close to the main valve one end connection of steam supply and is provided with the main valve of heating pipe, even through connection on the heating pipe pipeline is provided with heating pipe branch pipe, every heating pipe branch pipe steam outlet end with expansion pipe top steam inlet link up and is connected, every all be provided with heating pipe branch valve on the heating pipe branch pipe, carry out each heating pipe section while heating pipe section to steam supply pipeline through the heating pipe pipeline, shorten the required time by a wide margin, promote tub of efficiency.

Further, every all be provided with temperature-detecting appearance on the expansion pipe, temperature-detecting appearance is connected with external control ware through the wire, detects the heating coil pipeline temperature of heating coil in real time through temperature-detecting appearance, and after the temperature reached the heating coil temperature requirement, the heating coil branch valve and the heating coil master valve on closing the heating coil pipeline supply vapour, facilitate the use.

Furthermore, one end of the steam supply pipeline, which is far away from the thermal power plant, is connected with a steam user to supply heat for the user.

Furthermore, the outer wall of the steam supply pipeline is wrapped with the heat-insulating layer, the heat-insulating layer isolates the air and water from permeating, a good corrosion-resistant effect can be achieved, and the overall heat loss of the steam supply pipeline is greatly reduced.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure realizes each pipeline section of steam supply pipeline simultaneously the heating coil, shortens the required time of heating coil by a wide margin, and the heating coil is efficient, and each pipeline section simultaneously the heating coil prevents that thermal stress from leading to the pipeline deformation to damage, and extension pipeline live time saves the expense.

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

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of each pipeline of the present invention;

FIG. 3 is a schematic view of the connection between the temperature detector and the controller according to the present invention;

fig. 4 is the planing surface of the heat-insulating layer of the utility model.

In the figure: 1. a steam supply pipeline; 11. a main steam supply valve; 2. a heating pipe line; 21. a heating pipe main valve; 22. the heating pipes are divided into pipes; 23. a heating pipe branch valve; 3. an expansion conduit; 31. a steam trap; 32. a temperature detector; 4. a thermal power plant; 41. a steam user; 42. and (7) an insulating layer.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 and 2, a steam supply pipeline assembly of a thermal power plant includes a steam supply pipeline 1, a heating pipe pipeline 2 and an expansion pipeline 3, wherein the steam supply pipeline 1 is arranged in a U-shaped roundabout manner, the expansion pipeline 3 is provided with a plurality of expansion pipelines 3, the expansion pipeline 3 is uniformly sleeved outside the steam supply pipeline 1, a steam trap 31 is connected to the bottom of the lower part of each expansion pipeline 3, a steam inlet of the steam supply pipeline 1 is connected to an external thermal power plant 4, one side of the steam supply pipeline 1, which is close to the thermal power plant 4, is connected to a main steam supply valve 11, one end of the heating pipe pipeline 2 is connected to the main steam supply valve 11, which is close to the thermal power plant 4, and is provided with a heating pipe branch pipe 22, a steam outlet of each heating pipe branch pipe 22 is connected to a steam inlet of the top of the expansion pipeline 3, each heating pipe branch pipe 22 is provided with a heating pipe branch valve 23, one end of the heating pipeline 1, which is far away from a user, is connected to the heating pipe pipeline 41, and the heating pipe 1 is used for increasing the efficiency of each heating pipe, and the heating pipe 1.

Please refer to fig. 3 and 4, each expansion pipeline 3 is provided with a temperature detector 32, the temperature detector 32 is connected with an external controller through a wire, the temperature detector 32 detects the temperature of the heating pipe 2 of the heating pipe in real time, when the temperature reaches the temperature requirement of the heating pipe, the heating pipe branch valve 23 and the heating pipe main valve 21 on the heating pipe 2 are closed to supply steam, the use is convenient, the outer wall of the steam supply pipeline 1 is wrapped with a heat insulation layer 42, the heat insulation layer 42 isolates the infiltration of air and water, the good corrosion prevention effect can be achieved, and the overall heat loss of the steam supply pipeline 1 is greatly reduced.

The utility model discloses a concrete operation mode as follows:

when the heating time is needed, the temperature detector 32 is connected with an external controller through a lead, a worker opens the heating pipe main valve 21 on the heating pipe pipeline 2 and the heating pipe branch valves 23 on the heating pipe branch pipes 22, each section of the steam supply pipeline is simultaneously heated, the temperature detection is carried out through the temperature detector 32, after the temperature of each section reaches the requirement, the heating pipe branch valves 23 on the heating pipe branch pipes 22 and the heating pipe main valve 21 on the heating pipe pipeline 2 are closed, the heating pipe finishes working, and the steam supply main valve 11 is slowly opened for steam supply.

The above description is taken as an example to describe the present invention with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, as long as the present invention is adopted, the method concept and the technical solution of the present invention are performed to perform this kind of insubstantial improvement, or the concept and the technical solution of the present invention are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. Steam supply pipeline assembly of thermal power plant, including steam supply pipeline (1), heating pipe pipeline (2) and expansion pipe way (3), its characterized in that, steam supply pipeline (1) is the circuitous setting of U font, expansion pipe way (3) are provided with a plurality of, the outside of steam supply pipeline (1) is located to even cover of expansion pipe way (3), every expansion pipe way (3) below bottom is connected and is provided with hydrophobe (31), steam supply pipeline (1) steam inlet is connected with outside thermal power plant (4), steam supply pipeline (1) is close to thermal power plant (4) one side and is connected and be provided with heating pipe main valve (11), heating pipe pipeline (2) one end with steam supply main valve (11) one end link up and be connected and be provided with heating pipe main valve (21), evenly connect on heating pipe pipeline (2) and be provided with heating pipe branch pipe (22), every heating pipe branch pipe (22) link up and go up steam outlet (22) with expansion pipe end (3) is connected every heating pipe branch pipe (23) top is connected.

2. The steam supply pipeline assembly of the thermal power plant as claimed in claim 1, characterized in that each expansion pipeline (3) is provided with a temperature detector (32), and the temperature detectors (32) are connected with an external controller through leads.

3. The steam supply pipeline assembly for a thermal power plant according to claim 1, characterized in that the end of the steam supply pipeline (1) remote from the thermal power plant (4) is connected to a steam user (41).

4. The steam supply pipeline assembly of the thermal power plant as claimed in claim 1, characterized in that the outer wall of the steam supply pipeline (1) is wrapped with an insulating layer (42).