HDPE drainage outlet for coastal power station drainage project

Abstract

The utility model discloses a HDPE drainage outlet for coastal power station sea discharge engineering, is composed of HDPE elbow pipe and HDPE underwater tee pipe, wherein, the two ports of HDPE elbow pipe are provided with live sleeve flange interface, the branch pipe port of HDPE underwater tee pipe is provided with live sleeve flange interface, and the main pipe port of HDPE underwater tee pipe is respectively provided with electric melting socket and electric melting socket. The electric melting socket and electric melting socket of the main pipe port of HDPE underwater tee pipe are respectively connected with the electric melting socket and electric melting socket of other HDPE underwater tee pipe or HDPE main pipe through electric melting socket and socket connection. The utility model has the advantages that: solve the shortcomings that the drainage speed of the drainage outlet of the existing power station sea discharge pipeline is small, not corrosion resistant, easy to enter silt and marine organisms, the connecting mode is very convenient, the sea sinking construction is convenient, and is especially suitable for application in marine engineering.

Description

Technical Field

[0001] This utility model relates to a plastic pipe product, and in particular to an HDPE drainage outlet for coastal power station drainage projects. Background Technology

[0002] Since the Chinese plastic pipe manufacturer, Nachuan Co., Ltd., improved its HDPE spiral wound structured wall pipe into a pipeline product suitable for marine drainage projects in coastal power plants, more than four overseas coastal power plant projects have adopted this product. Its excellent corrosion resistance, settlement resistance, and convenient construction characteristics greatly meet the application requirements in this field, and it will become an important pipeline product for marine intake and drainage in coastal thermal and nuclear power plants. However, reinforced concrete or steel materials are still widely used as the main drainage terminals in these projects, concentrating the drainage function in a large internal outlet. This reduces the drainage velocity, easily leads to problems such as poor drainage, easy inflow of silt, and easy entry and growth of organisms. In addition, it also suffers from easy corrosion and difficult maintenance, urgently requiring the emergence of new products. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a plastic pipe product that can effectively increase flow rate, is corrosion-resistant, and easy to connect, especially an HDPE drainage outlet for coastal power station discharge projects.

[0004] To achieve the above objectives, the technical solution of this utility model is: an HDPE drainage outlet for a coastal power station's sea discharge project, consisting of an HDPE elbow pipe and an HDPE underwater tee pipe, wherein the two ends of the HDPE elbow pipe are provided with loose flange interfaces, the branch pipe ends of the HDPE underwater tee pipe are provided with loose flange interfaces, and the main pipe ends of the HDPE underwater tee pipe are respectively provided with electrofusion socket and electrofusion spigot.

[0005] The HDPE elbow and HDPE underwater tee are connected by a flange. The electrofusion socket and electrofusion spigot of the HDPE underwater tee main pipe port are respectively electrofusion socket connected to the electrofusion spigot and electrofusion socket of other HDPE underwater tee pipes or HDPE main pipes.

[0006] The outstanding advantages of this utility model are: it solves the shortcomings of existing power plant discharge pipelines, such as low drainage speed, poor corrosion resistance, and easy entry of silt and marine organisms. The connection method is extremely convenient, and the submerged construction is easy, making it particularly suitable for application in marine engineering. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the utility model used in a marine drainage project. Detailed Implementation

[0008] like Figure 1 , Figure 2 As shown, an HDPE drainage outlet for a coastal power station's sea discharge project consists of an HDPE elbow pipe 1 and an HDPE underwater tee pipe 2. The two ends of the HDPE elbow pipe 1 are equipped with a slip-on flange interface 11, and the branch pipe end of the HDPE underwater tee pipe 2 is equipped with a slip-on flange interface 21. The main pipe end of the HDPE underwater tee pipe 2 is equipped with an electrofusion socket 22 and an electrofusion spigot 23. The HDPE elbow pipe 1 and the HDPE underwater tee pipe 2 are connected by flanges. The electrofusion socket 22 and electrofusion spigot 23 of the main pipe end of the HDPE underwater tee pipe 2 are electrofusion socket connected to the electrofusion spigot 23 and electrofusion socket 22 of other HDPE underwater tee pipes 2 or HDPE main pipes, respectively. In coastal power plant discharge projects, HDPE drainage outlets are typically connected to HDPE pipelines and installed at the ends of the pipelines. Several HDPE drainage outlets can be continuously installed at the end of the pipeline according to the drainage volume requirements. The flange connections between HDPE elbow pipe 1 and HDPE underwater tee pipe 2 are both slip-fit ​​flanges. Before connection, adjustments can be made according to the ocean current direction to ensure the drainage direction follows the current as closely as possible, minimizing the impact of water splashing from the drainage outlet. The other end of HDPE elbow pipe 1 also has a pre-installed slip-fit ​​flange interface 11, which can be used depending on the drainage flow velocity. Decide whether to connect other structures. If the flow rate is too low, a duckbill valve can be connected to prevent silt or organisms from entering the pipeline. If the pipeline is laid in a deep seabed and a longer pipeline is directly submerged after connection, in order to solve the problem of the HDPE elbow pipe 1 being too high during the towing process and causing the pipeline to overturn, a flange blind plate can be used to seal the loose flange interface 21 on the HDPE underwater tee pipe 2. After the pipeline is submerged, the flange blind plate is removed, and the HDPE elbow pipe 1 is connected to the HDPE underwater tee pipe 2 by flange underwater.

[0009] Compared with existing technologies, this solution has the following advantages: it solves the shortcomings of existing power plant discharge pipelines, such as low drainage speed, poor corrosion resistance, and easy entry of silt and marine organisms. The connection method is extremely convenient, and the submerged construction is easy, making it particularly suitable for application in marine engineering.

Claims

1. An HDPE drainage outlet for coastal power station discharge projects, characterized in that... The HDPE drain outlet is composed of an HDPE elbow pipe (1) and an HDPE underwater tee pipe (2). The two ends of the HDPE elbow pipe (1) are provided with a loose flange interface one (11), the branch pipe end of the HDPE underwater tee pipe (2) is provided with a loose flange interface two (21), and the main pipe end of the HDPE underwater tee pipe (2) is provided with an electrofusion socket (22) and an electrofusion spigot (23).

2. The HDPE drainage outlet for coastal power station discharge projects as described in claim 1, characterized in that... The HDPE elbow pipe (1) and the HDPE underwater tee pipe (2) are connected by a flange.

3. The HDPE drainage outlet for a coastal power station's marine discharge project as described in claim 1, characterized in that... The electrofusion socket (22) and electrofusion spigot (23) of the main pipe port of the HDPE underwater tee (2) are respectively electrofused and spigot connected to the electrofusion spigot (23) and electrofusion socket (22) of other HDPE underwater tee (2) or HDPE main pipe.

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