Butt joint mechanism for water feeding pump pipeline of thermal power plant

Abstract

The utility model discloses a thermal power plant feed pump pipeline butt joint mechanism which comprises a fixed connecting pipe, a connecting flange is installed at one end of the fixed connecting pipe, and the other end of the fixed connecting pipe is movably installed on an adjustable combined butt joint structure. The adjustable combined butt-joint structure comprises an adjustable connecting pipe, a pair of positioning guide frames, a pair of guide rods, a butt-joint inserting pipe, a fixing groove, a rotating bearing, a rotating connecting frame and a combined internal thread. The utility model relates to the technical field of pipeline butt joint equipment, and has the beneficial effects that the problems that the existing feed pump pipelines are subjected to butt joint combination through flanges after being mounted, and two pipelines are subjected to butt joint combination through a plurality of flanges according to the distance between the pipelines, so that the mounting efficiency is lower, the mounting precision is poorer during mounting, and the production cost is higher are solved. And the device is not suitable for the installation of pipelines with different distances, and the operation is very tedious.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline connection equipment, specifically a pipeline connection mechanism for a feedwater pump in a thermal power plant. Background Art

[0002] In the operation of thermal power plants, feedwater pumps are one of the key pieces of equipment. The stability and reliability of their performance directly affect the overall operating efficiency and safety of the power plant. The feedwater pump pipeline docking mechanism is an important component of the feedwater pump system. It is responsible for connecting various pipelines to ensure that water can be transmitted smoothly and efficiently. Currently, feedwater pump pipelines are all connected and assembled using flanges after installation. Depending on the spacing of the pipelines, multiple flanges are used to connect and assemble the two pipelines. This method has low installation efficiency and poor installation accuracy, and it is not suitable for installing pipelines with different spacings. The operation is also very cumbersome. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a pipeline docking mechanism for a feedwater pump in a thermal power plant, comprising: a fixed connecting pipe, a connecting flange installed at one end of the fixed connecting pipe, and the other end of the fixed connecting pipe being movably installed in an adjustable combined docking structure;

[0004] The adjustable combined docking structure includes: an adjusting connecting pipe, a pair of positioning guide frames, a pair of guide rods, a docking insert pipe, a fixing groove, a rotary bearing, a rotary connecting frame, and a combined internal thread;

[0005] The right end of the adjusting connecting pipe is inserted into the fixed connecting pipe. A pair of positioning guides are installed on the left side wall of the fixed connecting pipe. A pair of guide rods are installed on the outer wall of the adjusting connecting pipe and inserted into the pair of positioning guides. The mating insert is installed on the left end of the adjusting connecting pipe. The fixing groove is opened on the outer side wall of the left end of the adjusting connecting pipe. The rotating bearing is installed on the fixing groove. The rotating connecting frame is installed on the adjusting connecting pipe through the rotating bearing. The combined internal thread is opened on the inner side wall of the rotating connecting frame.

[0006] Preferably, three sealing rings are provided at the connection between the right end of the adjusting connecting pipe and the fixed connecting pipe.

[0007] Preferably, the outer wall surface of the rotating connecting frame is provided with anti-slip texture.

[0008] Preferably, the rotating connecting frame has several combined screw holes.

[0009] Preferably, a sealing rubber gasket is provided on the inner side of the rotating connecting frame at the middle position between it and the docking insertion tube.

[0010] Beneficial effects

[0011] This utility model provides a docking mechanism for feedwater pump pipelines in thermal power plants, which has the following advantages: This solution uses an adjustable combined docking structure, adjusting the insertion combination of the connecting pipe and the fixed connecting pipe, as well as the cooperation between the guide rod and the positioning guide frame, which greatly simplifies the installation steps and improves the installation efficiency. It can dock and combine two pipelines with different spacing dimensions, and is applicable to different installation positions. It ensures a sealed connection between pipelines, solving the problem that existing feedwater pump pipelines are docked and combined through flanges after installation. According to the spacing of the pipelines, multiple flanges are used to dock and combine two pipelines, which has low installation efficiency, poor installation accuracy, and is not applicable to the installation of pipelines with different spacing, and the operation is very cumbersome. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a feedwater pump pipeline docking mechanism for thermal power plants according to the present invention.

[0013] Figure 2 This is a front view structural schematic diagram of a feedwater pump pipeline docking mechanism for thermal power plants according to the present invention.

[0014] Figure 3 This is a front sectional view of the structure of the feedwater pump pipeline docking mechanism for thermal power plants described in this utility model.

[0015] In the diagram: 1-Fixed connecting pipe; 2-Connecting flange; 3-Adjusting connecting pipe; 4-Positioning guide frame; 5-Guide rod; 6-Matching insert pipe; 7-Fixed groove; 8-Rotary bearing; 9-Rotary connecting frame; 10-Combined internal thread; 11-Sealing ring; 12-Anti-slip texture; 13-Combined screw hole; 14-Sealing rubber gasket. DETAILED DESCRIPTION

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example: Please refer to Figure 1-3 This utility model provides a technical solution: a connection mechanism for feedwater pump pipelines in thermal power plants. This solution takes into account that the existing connection of feedwater pump pipelines via flanges requires the use of multiple flanges, bolts and other components, which is cumbersome and time-consuming. Flange connections are relatively fixed in pipeline layout and installation position, making adjustment difficult and resulting in poor flexibility and applicability. Based on the above, this invention provides the following technical means.

[0018] Specifically, this device includes at least a fixed connecting pipe 1, a connecting flange 2, an adjusting connecting pipe 3, a pair of positioning guide frames 4, a pair of guide rods 5, a mating insert pipe 6, a fixing groove 7, a rotating bearing 8, a rotating connecting frame 9, and a combined internal thread 10.

[0019] The main body of the equipment consists of a fixed connecting pipe 1 and an adjusting connecting pipe 3 inserted thereon. During the pipe docking operation, the connecting flange 2 installed on one end of the fixed connecting pipe 1 is first combined with one of the pipes. Then, according to the distance with the other pipe, the insertion length of the adjusting connecting pipe 3 in the fixed connecting pipe 1 is moved to align with the other pipe opening. The rotating connecting frame 9, which is installed in the fixed groove 7 through the rotating bearing 8, is rotated so that the combined internal thread 10 on its inner side combines with the external thread of the connecting pipe to continue to drive the adjusting connecting pipe 3 to move, so that the docking insert pipe 6 is inserted into the connecting pipe. Then, it is locked and fixed through the combined screw hole 13 on the rotating connecting frame 9, thereby realizing the adjustable docking installation.

[0020] More specifically, the right end of the adjusting connecting pipe 3 is inserted into the fixed connecting pipe 1, a pair of positioning guides 4 are installed on the left side wall of the fixed connecting pipe 1, a pair of guide rods 5 are installed on the outer wall of the adjusting connecting pipe 3 and inserted into the pair of positioning guides 4, the mating insert pipe 6 is installed on the left end of the adjusting connecting pipe 3, the fixing groove 7 is opened on the outer side wall of the left end of the adjusting connecting pipe 3, the rotating bearing 8 is installed on the fixing groove 7, the rotating connecting frame 9 is installed on the adjusting connecting pipe 3 through the rotating bearing 8, and the combined internal thread 10 is opened on the inner side wall of the rotating connecting frame 9.

[0021] In the specific implementation process, three sealing rings 11 are further provided at the connection between the right end of the adjusting connecting pipe 3 and the fixed connecting pipe 1.

[0022] In the specific implementation process, furthermore, anti-slip texture 12 is provided on the outer wall surface of the rotating connecting frame 9.

[0023] In the specific implementation process, furthermore, the rotating connecting frame 9 is provided with several combined screw holes 13.

[0024] In the specific implementation process, a sealing rubber gasket 14 is further provided at the middle position between the inner side of the rotating connecting frame 9 and the docking insertion tube 6.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection mechanism for a feedwater pump pipeline in a thermal power plant, comprising: The fixed connecting pipe (1) is characterized in that a connecting flange (2) is installed at one end of the fixed connecting pipe (1), and the other end of the fixed connecting pipe (1) is movably installed in the adjustable combined docking structure; The adjustable combined docking structure includes: an adjusting connecting pipe (3), a pair of positioning guide frames (4), a pair of guide rods (5), a docking insert pipe (6), a fixing groove (7), a rotating bearing (8), a rotating connecting frame (9), and a combined internal thread (10). The right end of the adjusting connecting pipe (3) is inserted into the fixed connecting pipe (1). A pair of positioning guides (4) are installed on the left side wall of the fixed connecting pipe (1). A pair of guide rods (5) are installed on the outer wall of the adjusting connecting pipe (3) and inserted into the pair of positioning guides (4). The mating insert pipe (6) is installed on the left end of the adjusting connecting pipe (3). The fixing groove (7) is opened on the outer side wall of the left end of the adjusting connecting pipe (3). The rotating bearing (8) is installed on the fixing groove (7). The rotating connecting frame (9) is installed on the adjusting connecting pipe (3) through the rotating bearing (8). The combined internal thread (10) is opened on the inner side wall of the rotating connecting frame (9).

2. The feedwater pump pipeline docking mechanism for a thermal power plant according to claim 1, characterized in that, Three sealing rings (11) are provided at the connection between the right end of the adjusting connecting pipe (3) and the fixed connecting pipe (1).

3. The feedwater pump pipeline docking mechanism for a thermal power plant according to claim 1, characterized in that, The outer wall of the rotating connecting frame (9) is provided with anti-slip texture (12).

4. The connection mechanism for a feedwater pump pipeline in a thermal power plant according to claim 1, characterized in that, The rotating connecting frame (9) has several combined screw holes (13).

5. The feedwater pump pipeline docking mechanism for a thermal power plant according to claim 1, characterized in that, A sealing rubber gasket (14) is provided on the inner side of the rotating connecting frame (9) and at the middle position between the docking insert tube (6).

Images