CN220435768U

CN220435768U - EH oil pipeline of thermal power plant

Info

Publication number: CN220435768U
Application number: CN202321761849.1U
Authority: CN
Inventors: 孙凯亮; 赵捷
Original assignee: Guoneng Bengbu Power Generation Co ltd
Current assignee: Guoneng Bengbu Power Generation Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-02-02
Anticipated expiration: 2033-07-05

Abstract

The utility model relates to a heat-engine plant EH oil pipe way, including pipeline body, weight increasing piece and have elastic connecting piece, weight increasing piece be provided with two and follow the axial interval arrangement of pipeline body is in the pipeline body, weight increasing piece relative both ends pass through the connecting piece with the inner wall fixed connection of pipeline body, two be provided with between the weight increasing piece and predetermine the contained angle. Through the technical scheme, vibration or vibration of the pipeline can be relieved.

Description

EH oil pipeline of thermal power plant

Technical Field

The present disclosure relates to the field of thermal power generation, and in particular, to an EH oil pipeline of a thermal power plant.

Background

The turbines of thermal power plants are operated with digital electrohydraulic control systems (DEH, digital Electric Hydraulic Control System), which typically use high-pressure fire-resistant oil (EH oil) as the working medium. However, the EH hydraulic system often has the condition of unstable vibration of the pipeline in operation, so that cracks or even breaks occur in the pipeline joint or the welding line, and the operation safety of the thermal power unit is seriously affected.

Disclosure of Invention

The purpose of this disclosure is to provide a heat-engine plant EH oil pipe way, can slow down the vibrations of pipeline.

In order to achieve the above-mentioned purpose, the present disclosure provides an EH oil pipeline of a thermal power plant, including pipeline body, weight increasing piece and have elastic connecting piece, weight increasing piece is provided with two and follows the axial interval arrangement of pipeline body is in the pipeline body, weight increasing piece relative both ends pass through the connecting piece with the inner wall fixed connection of pipeline body, two be provided with the contained angle of predetermineeing between the weight increasing piece.

Optionally, the weight increasing piece is configured to be a sheet structure and has a length direction and a width direction which are perpendicular to each other, the width directions of the two weight increasing pieces are parallel to the axial direction of the pipeline body, the preset included angle is formed between the length directions of the two weight increasing pieces, and two ends of the weight increasing piece in the length direction are fixedly connected with the inner wall of the pipeline body through the connecting piece.

Optionally, at least two connectors are disposed at two ends of the weighting member in the length direction and are spaced apart in the width direction of the weighting member.

Optionally, the connector is configured as a spring.

Optionally, the preset included angle is a right angle.

Optionally, the EH oil pipeline of the thermal power plant further comprises a pressure detector, wherein the pressure detector is arranged in the pipeline body and is fixedly connected with the inner wall of the pipeline body, and the pressure detector is used for detecting the liquid pressure in the pipeline body.

Optionally, the EH oil pipeline of the thermal power plant further comprises a liquid pump, wherein the liquid pump is arranged outside the pipeline body and is communicated with the inner cavity of the pipeline body, so as to be used for pumping liquid from the pipeline body or sending liquid into the pipeline body.

Optionally, the EH oil pipeline of the thermal power plant further comprises a liquid pump, wherein the liquid pump is arranged outside the pipeline body and is communicated with the inner cavity of the pipeline body, and is used for pumping liquid from the pipeline body or sending liquid into the pipeline body, and the liquid pump is electrically connected with the pressure detector.

Optionally, the EH oil pipeline of the thermal power plant further comprises a liquid storage tank, one interface of the liquid pump is communicated with the inner cavity of the pipeline body, and the other interface of the liquid pump is communicated with the liquid storage tank.

Optionally, the pipeline body includes joint and communicating pipe, joint fixed connection is in the tip of communicating pipe, the joint is annular and the inner wall is provided with the screw thread, weight and the connecting piece sets up in the communicating pipe.

Through above-mentioned technical scheme, adopt the EH oil pipeline of this disclosure, when the EH oil hydraulic system appears making pipeline body vibrations or tremble the condition in the operation in-process, two weight-increasing pieces that are the contained angle setting of predetermineeing each other can play the damping effect in two different directions, namely when pipeline body takes place vibrations or tremble, two weight-increasing pieces restrict the activity of pipeline body through having elastic connecting piece, in order to slow down the vibrations or tremble of pipeline body, make pipeline body keep at stable state relatively, reduce the possibility that causes EH oil pipeline joint or welding seam to appear the crackle because of vibrations, reduce the cracked risk of pipeline connection, make thermal power generating unit's operation safer.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of an EH oil pipeline of a thermal power plant according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a thermal power plant EH oil pipeline according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a weight-increasing member of an EH oil pipeline of a thermal power plant according to an embodiment of the present disclosure.

Description of the reference numerals

1-a pipeline body; 11-linker; 12-communicating pipe; 2-a weight-increasing member; 3-connectors; 4-a pressure detector; 5-liquid pump.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the present disclosure, unless otherwise stated, the orientation word "inner and outer" is used to refer to "inner and outer" with respect to the outline of the corresponding component itself. In the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.

According to an embodiment provided by the present disclosure, referring to fig. 1 to 3, the present disclosure provides an EH oil pipeline of a thermal power plant, including a pipeline body 1, weight increasing members 2 and a connecting member 3 having elasticity, the weight increasing members 2 are provided with two and are arranged in the pipeline body 1 along an axial interval of the pipeline body 1, two opposite ends of the weight increasing members 2 are fixedly connected with an inner wall of the pipeline body 1 through the connecting member 3, and a preset included angle is provided between the two weight increasing members 2.

Through above-mentioned technical scheme, adopt the EH oil pipeline of this disclosure, when the EH oil hydraulic system appears making pipeline body 1 vibrations or tremble the condition in the operation in-process, two weight members 2 that are the setting of presetting the contained angle each other can play the damping effect in two different directions, namely when pipeline body 1 takes place vibrations or tremble, two weight members 2 restrict the activity of pipeline body 1 through having elastic connecting piece 3, in order to slow down the vibrations or tremble of pipeline body 1, make pipeline body 1 keep in stable state relatively, reduce the possibility that causes EH oil pipeline joint or welding seam to appear the crack because of vibrations, reduce the cracked risk of pipeline connection, make thermal power generating unit's operation safer.

Wherein, in the embodiment provided in the present disclosure, referring to fig. 1 and 2, the pipe body 1 may include a joint 11 and a communication pipe 12, the joint 11 is fixedly connected to an end of the communication pipe 12, the joint 11 is ring-shaped and an inner wall is provided with threads, and the weight 2 and the connection 3 are disposed within the communication pipe 12. That is, the annular joint 11 communicates with the communication pipe 12, and the inner diameter of the joint 11 is larger than that of the communication pipe 12, and the joint 11 fixes the communication pipe 12 to an external connection structure by screwing.

In other embodiments, the weighting members 2 may be in a columnar structure or a block structure, and in embodiments provided in the present disclosure, referring to fig. 2 and 3, the weighting members 2 are configured as a sheet structure and have a length direction and a width direction perpendicular to each other, the width directions of the two weighting members 2 are parallel to the axial direction of the pipe body 1, a preset included angle is provided between the length directions of the two weighting members 2, and two ends of the weighting members 2 in the length direction are fixedly connected with the inner wall of the pipe body 1 through the connecting member 3.

It should be noted that, in fig. 2, the weighting members 2 near the joint 11 are the remaining parts after being cut, the sections are cut surfaces, the sizes and shapes of the two weighting members 2 are the same before being cut, and only the placement positions and the placement directions are different, that is, the weighting members are arranged at a preset included angle as shown in fig. 3. The present disclosure adopts the sheet-shaped weight 2 and the width direction thereof is parallel to the axial direction of the pipe body 1, so that the influence of the weight 2 on the flow of the liquid in the pipe body 1 can be reduced, and the possibility that the weight 2 is flushed down by the liquid is also reduced.

In order to enable the connection member 3 to better connect the weight 2 and reduce the possibility of the weight 2 turning over in the pipe body 1, in the embodiment provided in the present disclosure, referring to fig. 2 and 3, both ends of the weight 2 in the length direction are provided with at least two connection members 3 arranged at intervals in the width direction of the weight 2. In the drawings, each end of the weight 2 is exemplarily shown to be connected to the inner wall of the pipe body 1 through two connecting pieces 3, that is, two ends of each weight 2 are respectively connected to the inner wall of the pipe body 1 through two connecting pieces 3. In other embodiments, both ends of each weight 2 may be connected to the inner wall of the pipe body 1 by three, four, or the like connectors 3, respectively, and the plurality of connectors 3 may be arranged at intervals in the width direction of the weight 2.

The connecting piece 3 needs to have elasticity, and can better cooperate with the weight-increasing piece 2 to retrain vibrations or trembling of the pipeline body 1, in the embodiment that this disclosure provided, referring to the illustration in fig. 2, the connecting piece 3 can be constructed as a spring, and the end welding of the connecting piece 3 one end and the weight-increasing piece 2 of spring structure, the inner wall welding of the other end and the pipeline body 1 to adopt the connecting piece 3 to adopt spring structure can make the connection of weight-increasing piece 2 more firm, reduces the possibility that weight-increasing piece 2 is washed by liquid. In other embodiments, the connecting member 3 may be configured as an elastic structure such as an elastic string.

It will be appreciated that when the communication pipe 12 is one integral pipe, the weight 2 needs to be provided close to the port of the communication pipe 12 in order to facilitate the installation of the weight 2 and the connection 3. When the communicating pipe 12 is formed by splicing a plurality of sections of sub-pipes, the weight-increasing member 2 and the connecting member 3 may be provided in any section of sub-pipe and spliced at a designated position of the communicating pipe 12 along with the pipe.

In the embodiment provided in the present disclosure, referring to fig. 2 and 3, the preset included angle between the two weight members 2 may be a right angle. In other embodiments, the predetermined angle between the two weighting members 2 may be an acute angle. The two weight increasing pieces 2 of the present disclosure adopt a mutually perpendicular distribution manner, and can restrain vibration and trembling in the vertical direction and the horizontal direction of the pipeline body 1, so as to maintain the connection stability of the pipeline body 1.

Because the pipeline body 1 needs to be internally provided with oil, the pressure in the pipeline body 1 needs to be monitored so that a worker knows the pressure condition in the pipeline body 1 at any time, therefore, in the embodiment provided by the disclosure, referring to fig. 2, the EH oil pipeline of the thermal power plant can further comprise a pressure detector 4, wherein the pressure detector 4 is arranged in the pipeline body 1 and fixedly connected with the inner wall of the pipeline body 1, and the pressure detector 4 is used for detecting the liquid pressure in the pipeline body 1. Among them, it is understood that the pressure detector 4 of the present disclosure refers to a detection end, and a detection equipment box, a numerical display screen, a control mechanism, etc. are disposed outside the pipe body 1 and electrically connected with the pressure detector 4.

When the pressure of the liquid in the pipeline body 1 changes greatly, the pressure in the pipeline body 1 needs to be adjusted, specifically, in the embodiment provided by the disclosure, referring to fig. 2, the EH pipeline of the thermal power plant may further include a liquid pump 5, where the liquid pump 5 is disposed outside the pipeline body 1 and is communicated with the inner cavity of the pipeline body 1, so as to be used for pumping the liquid from the pipeline body 1 or sending the liquid into the pipeline body 1.

In other embodiments, the liquid pump 5 of the present disclosure may be a water pump and disposed outside the pipe body 1, and the liquid pump 5 and the pipe body 1 are communicated through a connection pipe. In the embodiment shown in the drawings of the present disclosure, in order to exemplarily show the liquid pump 5, the liquid pump 5 in the drawings of the present disclosure adopts a micro water pump structure, and the water pumping port of the liquid pump 5 in this solution may be directly communicated with the pipe body 1.

Also, in order to store the liquid, in the embodiment provided in the present disclosure, the EH oil pipeline of the thermal power plant further includes a liquid storage tank (not shown in the drawing), and one interface of the liquid pump 5 is communicated with the inner cavity of the pipeline body 1, and the other interface is communicated with the liquid storage tank. Wherein, the liquid reserve tank is placed subaerial, in the scheme that this disclosure liquid pump 5 adopted miniature water pump, adopts the nipple to communicate between liquid pump 5 and the liquid reserve tank. Through the design mode, when the liquid pressure in the pipeline body 1 is overlarge, the liquid pump 5 can be opened to pump the liquid in the pipeline body 1 into the liquid storage tank, and when the liquid pressure in the pipeline body 1 is smaller, the liquid pump 5 can also be opened to send the liquid stored in the liquid storage tank back into the pipeline body 1.

Furthermore, in the embodiment provided in the present disclosure, referring to fig. 2, the pressure detector 4 and the liquid pump 5 may be electrically connected to be adjusted by the liquid pump 5 according to a specific pressure condition of the liquid in the pipe body 1 after detecting the pressure of the liquid in the pipe body 1. It is understood that the liquid within the conduit body 1 described in this disclosure may be EH oil.

The concrete implementation principle of the embodiment of the disclosure is that when the EH oil pipeline of the heat engine plant is adopted, when the pipeline body 1 vibrates or vibrates, the two weight increasing pieces 2 can restrict the movement of the pipeline body 1 through the elastic connecting piece 3 so as to reduce the vibration or vibration degree of the pipeline body 1. And, can detect the liquid pressure condition in the pipeline body 1 through pressure detector 4 to feed back to control mechanism, then control liquid pump 5 operation, namely, when pressure detector 4 detects the liquid pressure in the pipeline body 1 too big, liquid pump 5 draws the water in the pipeline body 1 to the liquid reserve tank in advance, and when pressure detector 4 detects the liquid pressure in the pipeline body 1 too little, liquid pump 5 sends the liquid in the liquid reserve tank into pipeline body 1 again in order to realize the regulation of the liquid pressure in the pipeline body 1.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. The EH oil pipeline of the thermal power plant is characterized by comprising a pipeline body, weight increasing pieces and elastic connecting pieces, wherein the weight increasing pieces are arranged in the pipeline body in two and are axially arranged at intervals along the pipeline body, two opposite ends of the weight increasing pieces are fixedly connected with the inner wall of the pipeline body through the connecting pieces, and a preset included angle is formed between the weight increasing pieces.

2. The EH oil pipeline of a thermal power plant according to claim 1, wherein the weight is constructed in a sheet structure and has a longitudinal direction and a width direction which are perpendicular to each other, the width directions of the two weight are parallel to the axial direction of the pipeline body, the preset included angle is arranged between the longitudinal directions of the two weight, and two ends of the weight in the longitudinal direction are fixedly connected with the inner wall of the pipeline body through the connecting piece.

3. The EH oil pipeline of a thermal power plant according to claim 2, wherein the weight members are provided at both ends in a length direction thereof with at least two of the connecting members arranged at intervals in a width direction thereof.

4. The EH oil conduit of a thermal power plant of claim 1, wherein the connector is configured as a spring.

5. The EH oil pipeline of a thermal power plant according to any one of claims 1 to 4, wherein the predetermined included angle is a right angle.

6. The EH oil pipeline of a thermal power plant according to claim 1, further comprising a pressure detector disposed within the pipeline body and fixedly connected to an inner wall of the pipeline body, the pressure detector being configured to detect a pressure of a fluid within the pipeline body.

7. The EH oil pipeline of a thermal power plant according to claim 1, further comprising a liquid pump disposed outside the pipeline body and in communication with the interior cavity of the pipeline body for drawing liquid from or into the pipeline body.

8. The heat power plant EH oil pipeline according to claim 6, further comprising a liquid pump disposed outside the pipeline body and in communication with the interior cavity of the pipeline body for drawing liquid from or into the pipeline body, the liquid pump being electrically connected to the pressure detector.

9. The EH oil conduit of a thermal power plant according to claim 7 or 8, further comprising a liquid reservoir, one interface of the liquid pump being in communication with the interior cavity of the conduit body and the other interface being in communication with the liquid reservoir.

10. The EH oil pipeline of a thermal power plant according to claim 1, wherein the pipeline body comprises a joint and a communicating pipe, the joint is fixedly connected to an end of the communicating pipe, the joint is annular and the inner wall is provided with threads, and the weighting member and the connecting member are arranged in the communicating pipe.