Safe operation state monitoring device for high-pressure container of hydropower station
By designing a high-pressure container safe operating status monitoring device that integrates multiple valves and sensors, the problem of insufficient operating status identification of high-pressure containers in the prior art is solved, automatic identification and intelligent alarm are realized, and the safety and stability of the equipment are improved.
Patent Information
- Application Number
- CN202421707984.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The operation monitoring of high-voltage containers in existing hydropower stations mainly relies on a single pressure sensor, and cannot independently identify the operating status of high-voltage containers. There are hidden dangers such as air leakage, liquid leakage and misremoval, resulting in insufficient safety and stability of the equipment.
A high-pressure container safety operating status monitoring device including integrated valves, outlet isolation valves, pressure transmitters, safety valves, inlet isolation valves, anti-tampering devices and maintenance valves is designed. It is equipped with signal sensors and service terminals. Through logical operations and real-time monitoring, it can independently identify the operating status of the high-pressure container and issue intelligent alarms.
It realizes the autonomous status recognition of the high-pressure container, determines whether the valve position is correct, determines the leakage or liquid leakage in combination with the pressure, and automatically locks and unlocks to prevent misoperation, improving the safety and operation stability of the equipment.
Smart Images
Figure CN222812560U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high-pressure container monitoring, and relates to a device for monitoring the safe operation state of a high-pressure container in a hydropower station. Background Art
[0002] In the operation of hydropower stations, high-pressure oil and gas system equipment is widely used and indispensable. The normal working pressure of the high-pressure containers of these equipment can usually reach 6~10MPa. It is inevitable that the pressure of the high-pressure container will be reduced due to air leakage, oil leakage and other reasons. There are even cases of mistaken removal of unrelieved equipment in the wrong interval, and there is no automatic anti-disassembly locking device for important pressure-bearing bolts. The intrinsic safety of the equipment needs to be improved urgently. At present, the operation monitoring of high-pressure containers in the high-pressure oil and gas systems of hydropower stations is mainly achieved by a single signal point of the pressure sensor. It can only monitor the pressure in the high-pressure container, cannot identify the current operation mode of the high-pressure container, and cannot independently judge whether the operation status of the high-pressure container is normal. The erroneous signal of a single pressure sensor failure will also cause the staff to misjudge the status of the equipment. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a device for monitoring the safe operation status of a high-pressure container of a hydropower station, which can autonomously identify the current operation status of the high-pressure container, eliminate potential problems, and improve the safe operation of equipment in the hydropower station.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for monitoring the safe operation status of a high-pressure container of a hydropower station, which includes an integrated valve, an outlet isolation valve, a pressure transmitter, a safety valve, an inlet isolation valve, an anti-dismantling device and a maintenance valve arranged on the pressure tank; the integrated valve, the outlet isolation valve, the pressure transmitter, the safety valve, the inlet isolation valve and the maintenance valve are all provided with signal sensors; the signal sensor is electrically connected to the service terminal.
[0005] The integrated valve is located at the bottom of the pressure tank; the integrated valve comprises a sewage discharge valve, a sewage discharge solenoid valve and a sewage discharge bypass valve which are interconnected.
[0006] The safety valve is arranged on the top of the pressure tank.
[0007] The anti-disassembly device is an electromagnetic lock, which is electrically connected to the service terminal.
[0008] The main beneficial effects of the utility model are:
[0009] Autonomously identify the current operating status of the high-pressure container and determine whether the valve position of the high-pressure container is correct under the current operating mode, including but not limited to the high-pressure inlet and outlet isolation valves being mistakenly closed in the operating mode and the maintenance valve being mistakenly closed in the maintenance mode.
[0010] Determine whether the high-pressure container is leaking gas or liquid by combining the "operation / maintenance" mode of the high-pressure container and the pressure inside the container.
[0011] The server terminal has the function of detecting whether there are personnel around the pressure vessel for a long time. It can be judged that someone is working there for a long time, and an alarm will be issued in time to remind "No work is allowed under pressure" when the equipment is not under maintenance.
[0012] Automatic locking and unlocking prevents accidental removal or misoperation of pressurized equipment due to inadequate monitoring, improper operation, or mistaken entry into intervals, thus improving the inherent safety of the equipment.
[0013] The service terminal has a display function that can visually display the operating status of the high-pressure container, issue an intelligent alarm and make voice broadcasts to remind staff to check and handle in time, thereby improving the operating stability and safety and reliability of the hydropower station equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] In the figure: pressure tank 1; integrated valve 2; outlet isolation valve 3; pressure transmitter 4; safety valve 5; inlet isolation valve 6; anti-dismantling device 7; inspection valve 8; signal sensor 9; service terminal 10. DETAILED DESCRIPTION
[0017] like Figure 1 A device for monitoring the safe operation status of a high-pressure container of a hydropower station is provided, which includes an integrated valve 2, an outlet isolation valve 3, a pressure transmitter 4, a safety valve 5, an inlet isolation valve 6, an anti-disassembly device 7 and a repair valve 8 arranged on a pressure tank 1; a signal sensor 9 is arranged on the integrated valve 2, the outlet isolation valve 3, the pressure transmitter 4, the safety valve 5, the inlet isolation valve 6 and the repair valve 8; the signal sensor 9 is electrically connected to a service terminal 10.
[0018] In a preferred solution, the integrated valve 2 is located at the bottom of the pressure tank 1; the integrated valve 2 includes a sewage valve, a sewage solenoid valve and a sewage bypass valve which are interconnected.
[0019] In a preferred solution, the safety valve 5 is arranged on the top of the pressure tank 1 .
[0020] In a preferred solution, the anti-disassembly device 7 is an electromagnetic lock, and the electromagnetic lock is electrically connected to the service terminal 10 .
[0021] Embodiment 1,
[0022] By manually setting the "operation / maintenance" mode on the service terminal 10, the relevant valve status and pressure signals of the high-pressure container in the high-pressure oil and gas system are collected, and after logical operation, the current operation status of the high-pressure container is automatically identified, and the current position of each valve is determined to be correct, whether the high-pressure container is operating normally, and whether the high-pressure container can be disassembled for maintenance.
[0023] The identification results are displayed on the service terminal. If there is any abnormal situation, an intelligent alarm signal will be issued in time and a voice broadcast will be made. The precautions in the abnormal situation will be displayed to remind the staff to check and deal with it in time, eliminate potential problems, and improve the inherent safety, operational stability and safety reliability of the hydropower station equipment.
[0024] Embodiment 2,
[0025] Autonomously identify the following states:
[0026] 1. "Operation" state conditions: the pressure value in the pressure vessel is within the rated range, the inlet isolation valve is in the fully open position, the outlet isolation valve is in the fully open position, the sewage bypass valve is in the fully closed position, the sewage valve is in the fully open position, the inspection valve is in the fully closed position, and the safety valve is not actuated; the anti-dismantling device 7 is automatically locked.
[0027] 2. "Pressure relief" state conditions: the inlet isolation valve is in the fully closed position, the outlet isolation valve is in the fully closed position, the inspection valve is in the fully open position, the internal pressure is lower than the rated pressure and greater than 0; the anti-dismantling device 7 is automatically locked.
[0028] 3. “Maintenance” state conditions: the inlet isolation valve is in the fully closed position, the outlet isolation valve is in the fully closed position, the maintenance valve is in the fully open position, and the internal pressure is 0; the anti-dismantling device 7 is automatically unlocked.
[0029] 4. “Manual sewage discharge” state conditions: the pressure value in the pressure vessel is within the rated range, the inlet isolation valve is in the fully open position, the outlet isolation valve is in the fully open position, the sewage bypass valve is in the fully open position, the sewage valve is in the fully open position, the sewage solenoid valve is not opened, the inspection valve is in the fully closed position, and the safety valve is not actuated; the anti-dismantling device 7 is automatically locked.
[0030] 5. "Automatic sewage discharge" state conditions: the pressure value in the pressure vessel is within the rated range, the inlet isolation valve is in the fully open position, the outlet isolation valve is in the fully open position, the sewage bypass valve is in the fully closed position, the sewage valve is in the fully open position, the sewage solenoid valve is opened, the inspection valve is in the fully closed position, and the safety valve is not actuated; the anti-dismantling device 7 is automatically locked.
[0031] The above five states can be divided into two modes: operation mode and maintenance mode. In the normal "operation" state under the operation mode, there will be a regular "automatic sewage discharge" or temporary "manual sewage discharge" process; in the maintenance mode, there will be a "pressure relief" process until the pressure in the pressure vessel is relieved to 0, reaching the "maintenance" state. There are two mode switching buttons of "operation" and "maintenance" on the display screen, and the staff selects the target mode. When the mode detected by the online monitoring device is inconsistent with the mode selected by the staff, the online monitoring device sends an abnormal mode alarm signal, prohibiting work, and reminding the staff to check and deal with it in time, eliminate hidden problems, and improve the operation stability and safety and reliability of the hydropower station equipment.
[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A device for monitoring the safe operation status of a high-pressure vessel in a hydropower station, characterized in that: It comprises an integrated valve (2), an outlet isolation valve (3), a pressure transmitter (4), a safety valve (5), an inlet isolation valve (6), an anti-disassembly device (7) and a check valve (8) which are arranged on a pressure tank (1); a signal sensor (9) is arranged on the integrated valve (2), the outlet isolation valve (3), the pressure transmitter (4), the safety valve (5), the inlet isolation valve (6) and the check valve (8); and the signal sensor (9) is electrically connected to a service terminal (10).
2. The device for monitoring the safe operation status of a high-pressure vessel of a hydropower station according to claim 1 is characterized in that: The integrated valve (2) is located at the bottom of the pressure tank (1); the integrated valve (2) comprises a sewage discharge valve, a sewage discharge solenoid valve and a sewage discharge bypass valve which are interconnected.
3. The device for monitoring the safe operation status of a high-pressure vessel of a hydropower station according to claim 1 is characterized in that: The safety valve (5) is arranged on the top of the pressure tank (1).
4. The device for monitoring the safe operation status of a high-pressure vessel of a hydropower station according to claim 1 is characterized in that: The anti-disassembly device (7) is an electromagnetic lock, which is electrically connected to the service terminal (10).