Pressure balance compensation device for steam pipeline of steam turbine

Abstract

The utility model relates to a pressure balance compensation device for a steam pipeline of a steam turbine, which belongs to the technical field of steam turbines and comprises a device body, and a supporting structure is arranged on the device body. The supporting structure comprises a plurality of springs, hemispherical shells are installed at the top ends of the springs, rotating balls are rotationally clamped in the hemispherical shells, the device body comprises a pipeline and a corrugated pipe, the outer sides of the rotating balls make contact with the outer sides of the pipeline and the corrugated pipe, and the springs are arranged in three rows. By arranging the supporting structure, the pipeline and the corrugated pipe are supported by means of the elastic force of the spring, meanwhile, the friction force among the pipeline, the corrugated pipe and the rotating ball is reduced by means of the fact that the rotating ball can rotate in the hemispherical shell, and therefore the effect of supporting the pipeline and the corrugated pipe is achieved; and influence on normal use of the pressure balance compensation device due to the trend of bending deformation is avoided as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, and specifically to a steam turbine steam pipeline pressure balance compensation device. Background Technology

[0002] A steam turbine is a type of turbine that uses high-pressure steam to drive an impeller, thereby generating power. It is a rotary power machine that converts the thermal energy of steam into mechanical energy.

[0003] Among them, the steam turbine steam pipeline pressure balance compensation device is a thermal equipment widely used in industrial and civil fields. It is mainly used to compensate for the thermal stress generated by the pipeline due to temperature changes, and to ensure the normal operation of the pipeline system. When the steam temperature in the pipeline changes, the compensator will expand and contract accordingly according to the temperature change, thereby balancing the stress of the pipeline system and preventing pipeline rupture or leakage at the connection due to excessive thermal stress.

[0004] Pressure balancing compensation devices generally consist of pipes and bellows. As the pressure balancing compensation device is put into use, the pipes and bellows continuously expand and contract, causing the pipes and bellows to become weak and prone to bending and deformation, which in turn affects the normal use of the pressure balancing compensation device.

[0005] To address the aforementioned issues, this application proposes a steam turbine steam pipeline pressure balance compensation device. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a steam turbine steam pipeline pressure balance compensation device.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A steam turbine steam pipeline pressure balance compensation device, including a device body, on which a support structure is provided;

[0008] The support structure includes multiple springs, with a hemispherical shell mounted on the top of each spring, and a rotating ball engaged inside each hemispherical shell.

[0009] The device body includes a pipe and a corrugated pipe. The outer sides of the plurality of rotating beads are in contact with the outer sides of the pipe and the corrugated pipe. The rotating beads are used to support the pipe and the corrugated pipe.

[0010] The springs are arranged in three rows to accommodate lateral displacement of the pipes and bellows.

[0011] The device body is equipped with a mounting plate, and multiple springs are mounted on the mounting plate. The mounting plate is used to support the springs.

[0012] A limiting tube is installed on the top of the mounting plate. The limiting tube is located outside the spring and is used to limit the spring.

[0013] A support rod is installed on the top of the mounting plate, a switch is installed at the top of the support rod, and a flashing light is installed on the outside of the limiting tube. The switch and the flashing light are electrically connected. The support rod, switch, and flashing light are used to remind workers to replace the spring in a timely manner.

[0014] The beneficial effects of this utility model are:

[0015] By setting up a support structure, the spring force is used to support the pipe and bellows. At the same time, the rotating ball can rotate inside the hemispherical shell, reducing the friction between the pipe, bellows and the ball, thereby achieving the effect of supporting the pipe and bellows and minimizing the tendency of bending deformation that would affect the normal use of the pressure balance compensation device.

[0016] As the spring is used for a long time, its elasticity gradually weakens. At this point, the spring gradually compresses and shortens, causing the bottom of the hemispherical shell to touch the switch. This causes the switch to control the flashing light, thus reminding staff to replace the spring in time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the overall structure of the device.

[0018] Figure 2 This utility model is a cross-sectional view of the internal structure of the limiting tube.

[0019] Figure 3 This utility model is a cross-sectional schematic diagram showing the internal structure of a hemispherical shell.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Device body;

[0022] 2. Support structure; 201. Mounting plate; 202. Limiting tube; 203. Spring; 204. Hemispherical shell; 205. Rotating ball; 206. Support rod; 207. Switch; 208. Flashing light. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0026] Reference Figure 1-3 A steam turbine steam pipeline pressure balancing compensation device includes a device body 1, which includes a pipeline and a bellows. A support structure 2 is provided on the device body 1. The support structure 2 includes multiple springs 203, with a hemispherical shell 204 mounted on the top of each spring 203. A rotating ball 205 is rotatably engaged inside the hemispherical shell 204. It should be noted that the rotating ball 205 will not detach from the hemispherical shell 204. The outer sides of the rotating balls 205 contact the outer sides of the pipeline and the bellows. Specifically, the spring force of the springs 203 supports the pipeline and the bellows, while the rotating balls 205 can rotate within the hemispherical shell 204, reducing friction between the pipeline, the bellows, and the rotating balls 205. This achieves the effect of supporting the pipeline and the bellows, minimizing the tendency for bending deformation that could affect the normal operation of the pressure balancing compensation device.

[0027] Reference Figure 1 The spring 203 is arranged in three rows to cope with the lateral displacement of the pipe and the corrugated pipe, and can continuously and effectively support the pipe and the corrugated pipe.

[0028] Reference Figure 1 The device body 1 is equipped with a mounting plate 201, and multiple springs 203 are mounted on the mounting plate 201. The mounting plate 201 is used to support the springs 203.

[0029] Reference Figure 1and Figure 2 A limiting tube 202 is installed on the top of the mounting plate 201. The limiting tube 202 is located outside the spring 203 and is used to limit the spring 203.

[0030] Reference Figure 2 A support rod 206 is installed on the top of the mounting plate 201, and a switch 207 is installed on the top of the support rod 206. A flashing light 208 is installed on the outside of the limit tube 202. The switch 207 and the flashing light 208 are electrically connected. According to the above technical solution, specifically, as the spring 203 is used for a long time, the elastic force of the spring 203 gradually weakens. At this time, the spring 203 gradually compresses and shortens, causing the bottom of the hemispherical shell 204 to touch the switch 207, thereby causing the switch 207 to control the flashing light 208 to flash, achieving the effect of reminding the staff to replace the spring 203 in time.

[0031] Among them, the specific model of switch 207 is Omron micro tactile switch B3F-4055, and the specific model of flashing light 208 is Jinbei Hi-460MAX. The circuit connection method of the two can be reasonably set according to the actual situation, and the signal transmission method of the two is existing technology.

[0032] Working principle:

[0033] This steam turbine steam pipeline pressure balancing compensation device uses the elastic force of spring 203 to support the pipeline and bellows. At the same time, the rotating ball 205 can rotate within the hemispherical shell 204, reducing the friction between the pipeline, bellows and the rotating ball 205. This achieves the effect of supporting the pipeline and bellows, minimizing the tendency of bending deformation that would affect the normal use of the pressure balancing compensation device.

[0034] As the steam turbine steam pipeline pressure balance compensation device is used for a long time, the elasticity of the spring 203 gradually weakens. At this time, the spring 203 gradually compresses and shortens, causing the bottom of the hemispherical shell 204 to touch the switch 207, which in turn causes the switch 207 to control the flashing light 208 to flash, thus reminding the staff to replace the spring 203 in time.

[0035] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A steam turbine steam pipeline pressure balancing compensation device, comprising a device body (1), characterized in that, The device body (1) is provided with a support structure (2); The support structure (2) includes multiple springs (203), with a hemispherical shell (204) mounted on the top of each spring (203), and a ball bearing (205) rotatably engaged inside each hemispherical shell (204).

2. The steam turbine steam pipeline pressure balance compensation device according to claim 1, characterized in that, The device body (1) includes a pipe and a bellows, and the outer sides of the plurality of rotating beads (205) are in contact with the outer sides of the pipe and the bellows.

3. The steam turbine steam pipeline pressure balance compensation device according to claim 1, characterized in that, The spring (203) is provided in three rows.

4. The steam turbine steam pipeline pressure balance compensation device according to claim 1, characterized in that, The device body (1) is equipped with a mounting plate (201), and multiple springs (203) are mounted on the mounting plate (201).

5. A steam turbine steam pipeline pressure balance compensation device according to claim 4, characterized in that, A limiting tube (202) is installed on the top of the mounting plate (201), and the limiting tube (202) is located outside the spring (203).

6. The steam turbine steam pipeline pressure balance compensation device according to claim 5, characterized in that, A support rod (206) is installed on the top of the mounting plate (201), a switch (207) is installed on the top of the support rod (206), a flashing light (208) is installed on the outside of the limiting tube (202), and the switch (207) and the flashing light (208) are electrically connected.

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