Pressure device suitable for hydraulic system of hydroelectric generator set

Abstract

The utility model belongs to pressure detection field, concretely relates to a pressure device suitable for hydraulic system of water -turbine generating set, including mounting seat, the inside structure of mounting seat has first connecting channel, first connecting channel is used for communicating with container, pressure component, pressure component sets up multiple, corresponding pressure component one -to -one corresponding second connecting channel is provided, pressure component passes through second connecting channel and first connecting channel intercommunication, and first valve, each second connecting channel respectively all are configured first valve, and first valve is used for opening / closing second connecting channel. The utility model provides a pressure device suitable for hydraulic system of water -turbine generating set, and its purpose is at solving the problem of the normal work of other pressure components in prior art because single pressure component dismounts.

Description

Technical Field

[0001] This utility model belongs to the field of pressure detection, specifically relating to a pressure device suitable for the hydraulic system of a hydro-generator set. Background Technology

[0002] In the operation of a hydroelectric power station's turbine-generator unit, the hydraulic system plays a crucial role. The turbine governor, as an important auxiliary control device, relies on the hydraulic system to control the guide vane opening, precisely regulate the water flow through the turbine, and thus effectively control the turbine speed and power generation. Its operational reliability is directly related to the safe and stable operation of the power system. The hydraulic system of a hydroelectric power station's turbine-generator unit includes containers for holding hydraulic fluid and pressure devices. The containers are constructed with connection holes to connect to the pressure devices, which can obtain relevant pressure information so that different systems can perform different processing procedures based on this pressure information. Existing pressure devices include pipelines and multiple pressure components installed on the pipelines. The purpose of setting multiple pressure components is to meet the requirements of redundancy design and to provide feedback signals to different control systems.

[0003] However, in practice, it has been found that because multiple pressure components are installed, and all of them are located on the same pipeline, when it is necessary to disassemble or maintain one of the pressure components, the entire pipeline must be shut down to prevent leaks. Obviously, shutting down the entire pipeline will also disable the other pressure components. Utility Model Content

[0004] This utility model provides a pressure device suitable for the hydraulic system of a hydro-generator set, the purpose of which is to solve the problem in the prior art that the disassembly of a single pressure component affects the normal operation of other pressure components.

[0005] To achieve the above objectives, this utility model provides a pressure device suitable for a hydraulic system of a hydro-generator set, a mounting base having a first connecting channel internally configured to communicate with a container; multiple pressure components, each with a corresponding second connecting channel, the pressure components communicating with the first connecting channel via the second connecting channel; and a first valve, each of the second connecting channels being equipped with the first valve, the first valve being used to open / close the second connecting channel.

[0006] In this solution, the corresponding second connection channel can be closed via the first valve. Once the second connection channel is closed, the pressure component matching the second connection channel can be disassembled and replaced. During the disassembly and replacement of the pressure component, since the second connection channel is in a closed state, it will not affect other pressure components installed on the mounting base, thus overcoming the shortcomings of the prior art.

[0007] Preferably, to facilitate communication between the first connecting channel and the container, this solution further includes a connecting pipe, through which the first connecting channel communicates with the container. This solution uses the connecting pipe to connect the container and the first connecting component, allowing the mounting position of the mounting base to be adjusted as needed, thus enhancing its practicality.

[0008] Preferably, to achieve complete closure of the connecting pipe, a second valve is provided on the connecting pipe in this solution. The second valve is used to open / close the connecting pipe. Because of the second valve, the connecting pipe can be sealed. After the connecting pipe is sealed, the oil in the container will not enter the first connecting channel, thus ensuring that in the event of accidental oil leakage in the first connecting channel, continuous oil leakage can be prevented by sealing the connecting pipe.

[0009] Preferably, the connecting pipe is detachably connected to the first connecting channel. In this design, the connecting pipe and the mounting base can be disconnected as needed to meet different usage requirements, making it more practical.

[0010] Preferably, each of the second connection channels is equipped with a PT pressure test connector at its outlet, and the PT pressure test connector is connected to the pressure component. Since the PT pressure test connector has a self-locking function, when the pressure component needs to be disassembled, the self-locking function of the PT pressure test connector can further prevent oil leakage, making it more practical.

[0011] Preferably, the PT pressure test connector is detachably connected to the second connection channel.

[0012] Preferably, an adapter is provided between the PT pressure testing connector and the pressure component, and the pressure component and the adapter can be detachably connected.

[0013] Preferably, to achieve greater integration of the device, the second connection channel is constructed inside the mounting base, and the pressure component is mounted on the mounting base. By correspondingly arranging the second connection channel and the pressure component on the mounting component, the device achieves a higher degree of integration.

[0014] Preferably, the pressure component is a mechanical pressure gauge or a pressure switch. A mechanical pressure gauge is used to detect the pressure inside the container, while a pressure switch can be connected to a relevant control system to provide a pressure signal for the normal operation of different control systems.

[0015] Preferably, the first valve is a needle valve.

[0016] The beneficial effects of this utility model are as follows: In this solution, the corresponding second connecting channel can be closed by the first valve. When the second connecting channel is closed, the pressure component matching the second connecting channel can be disassembled and replaced. During the disassembly and replacement of the pressure component, since the second connecting channel is in a closed state, it will not affect other pressure components installed on the mounting base, thus solving the shortcomings of the prior art. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pressure device suitable for the hydraulic system of a hydro-generator unit.

[0018] Figure 2 This is a partial sectional view of the mounting base.

[0019] Figure 3 This is a schematic diagram showing the connection between the first connection channel and the pressure component.

[0020] The reference numerals in the attached drawings include: connecting pipe 1, mounting base 2, first connecting channel 21, second connecting channel 22, pressure component 3, first valve 4, second valve 5, PT pressure test connector 6, adapter 7, bracket 8, and container 9. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0022] The basic implementation examples are as follows: Figure 1 As shown, a pressure device suitable for the hydraulic system of a hydro-generator set includes a connecting pipe 1, a mounting base 2, a pressure component 3, a first valve 4, and a second valve 5.

[0023] In this embodiment, the mounting base 2 is rectangular in shape. The mounting base 2 can be installed on a support frame, ensuring its stability. The support frame can be a conventional bracket 8 found in the prior art. Figure 2As shown, a first connecting channel 21 with a circular cross-section is constructed inside the mounting base 2. A threaded interface is provided at the inlet of the first connecting channel 21. The connecting pipe 1 is connected to the inlet of the first connecting channel 21 through the threaded interface, allowing the connecting pipe 1 to be detachably connected to the mounting base 2, while maintaining communication between the connecting pipe 1 and the first connecting channel 21 constructed inside the mounting base 2. The connecting pipe 1 is used to connect to the pressure measuring hole of the container 9, allowing the oil inside the container 9 to enter the connecting pipe 1. The connecting pipe 1 and the pressure measuring hole can be fixedly connected by welding or by existing connection methods such as threaded connection. A second valve 5 is also configured on the connecting pipe 1, which opens or closes the connecting pipe 1. When the connecting pipe 1 is open, oil can enter the first connecting channel 21 through the connecting pipe 1; when the connecting pipe 1 is closed, oil is blocked from entering the first connecting channel 21. The second valve 5 can be a conventional valve in the prior art, such as a mechanical valve or an electronic valve.

[0024] like Figure 3 As shown, this embodiment also includes a second connecting channel 22 inside the mounting base 2. Multiple second connecting channels 22 are provided, their number corresponding to the number of pressure components 3. The second connecting channel 22 is U-shaped. The second connecting channel 22 is in communication with the first connecting channel 21, allowing oil entering the first connecting channel 21 to enter the second connecting channel 22. A threaded interface is provided at the outlet of the second connecting channel 22. The PT pressure testing connector 6 is detachably installed at the outlet of the second connecting channel 22 via threads. The PT pressure testing connector 6 has a self-locking function, further sealing the oil and preventing leakage. The PT pressure testing connector 6 is then connected to the pressure component 3 via an adapter 7. The PT pressure testing connector 6 and the adapter 7 are detachably connected via threads, and the adapter 7 is also detachably connected to the pressure component 3 via threads. The number of PT pressure testing connectors 6 corresponds to the number of pressure components 3, and the PT pressure testing connectors 6 are located on the top of the mounting base 2, arranged in a straight line.

[0025] In this embodiment, pressure component 3 can be a mechanical pressure gauge or a pressure switch. Only one of the mechanical pressure gauge and pressure switch can be provided, or both can be provided simultaneously. The number of mechanical pressure gauges and pressure switches can be set as needed. For example, one mechanical pressure gauge and multiple pressure switches (such as 2, 3, 4, 5, or 6) can be provided, each with a different working pressure. Different pressure switches can be connected to different control systems. Similarly, multiple mechanical pressure gauges (such as 2, 3, 4, 5, or 6) and multiple pressure switches (such as 2, 3, 4, 5, or 6) can be provided. The provision of multiple mechanical pressure gauges can meet the requirements of redundancy.

[0026] In this embodiment, a first valve 4, which is a needle valve, is configured on each second connection channel 22. The first valve 4 is located on the side of the mounting base 2, and multiple first valves 4 are arranged in a straight line. When the first valve 4 is working, it can open or close the second connection channel 22. When the second connection channel 22 is closed, the oil in the first connection channel 21 cannot flow to the corresponding pressure component 3 through the second connection channel 22, thus preventing oil leakage when the pressure component 3 is disassembled.

[0027] The following detailed description illustrates the specific implementation method: When the device is in operation, the oil inside container 9 enters the connecting pipe 1 through the pressure testing hole, and then enters the first connecting channel 21 via the connecting pipe 1. The oil then enters the second connecting channel 22 along with the first connecting channel 21, and finally passes through the PT pressure testing connector 6 and the adapter 7 in sequence, where it comes into contact with the pressure component 3.

[0028] When it is necessary to disassemble one of the pressure components 3 (for example, when a pressure switch needs to be disassembled), the corresponding second connection channel 22 is closed through the corresponding first valve 4 to prevent oil from contacting the corresponding pressure component 3 through the second connection channel 22. Therefore, when one pressure component 3 is disassembled, the other pressure components 3 will not be affected.

[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pressure device suitable for the hydraulic system of a hydro-generator set, characterized in that: include Mounting base (2), the mounting base (2) has a first connecting channel (21) inside, the first connecting channel (21) is used to communicate with the container (9); Pressure components (3), wherein multiple pressure components (3) are provided, and a second connecting channel (22) is provided for each pressure component (3). The pressure components (3) are connected to the first connecting channel (21) through the second connecting channel (22); and The first valve (4) is provided in each of the second connection channels (22), and the first valve (4) is used to open / close the second connection channel (22).

2. The pressure device according to claim 1, characterized in that: It also includes a connecting pipe (1), through which the first connecting channel (21) is connected to the container (9).

3. The pressure device according to claim 2, characterized in that: The connecting pipe (1) is equipped with a second valve (5), which is used to open / close the connecting pipe (1).

4. The pressure device according to claim 2, characterized in that: The connecting pipe (1) can be detachably connected to the first connecting channel (21).

5. The pressure device according to claim 1, characterized in that: Each of the second connection channels (22) is provided with a PT pressure test connector (6) at its outlet, and the PT pressure test connector (6) is connected to the pressure component (3).

6. The pressure device according to claim 5, characterized in that: The PT pressure test connector (6) can be detachably connected to the second connection channel (22).

7. The pressure device according to claim 5, characterized in that: An adapter (7) is provided between the PT pressure test connector (6) and the pressure component (3), and the pressure component (3) and the adapter (7) can be detachably connected.

8. The pressure device according to any one of claims 1 to 7, characterized in that: The second connection channel (22) is constructed inside the mounting base (2), and the pressure component (3) is mounted on the mounting base (2).

9. The pressure device according to claim 1, characterized in that: The pressure component (3) is a mechanical pressure gauge or a pressure switch.

10. The pressure device according to claim 1, characterized in that: The first valve (4) is a needle valve.

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