Oil balance system and method for oil pressure device of speed regulator, medium and equipment

Abstract

The invention provides an oil balance system and method of a speed regulator oil pressure device, a medium and equipment, and relates to the technical field of speed regulator oil pressure control. The other oil way of the oil return tank is communicated with a pressure oil tank through a first oil pump motor; one oil way of the oil leakage tank is communicated with the servomotor to receive leaked oil of the servomotor, and the other oil way of the oil leakage tank is communicated with the oil return tank through a second oil pump motor; the oil pressure control unit receives liquid level signals collected in real time to calculate the total oil quantity of the oil balance system, and when the total oil quantity exceeds a set value, an alarm is given. According to the method, the oil balance condition of the speed regulator oil pressure device can be automatically monitored in real time, when the oil balance exceeds the set upper and lower limits, an alarm is given, operators are reminded to inspect, the labor intensity of the operators can be relieved, the requirement for unattended operation or few-person operation is met, and the operation stability and reliability of the oil pressure device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of governor oil pressure control, and particularly relates to an oil balance system, method, medium and device for a governor oil pressure device. Background Art

[0002] A governor oil pressure device is an energy storage device that provides a certain pressure and oil volume for hydraulic control equipment. In a hydropower station, it mainly supplies the operating water guide mechanism or blade operating mechanism of the governing system, and also supplies the hydraulic energy device for the main valve of the water turbine and other hydraulic components. When a large amount of pressure oil is suddenly consumed during operation, in order not to cause a large drop in the oil pressure of the pressure oil tank, only about 40% of the volume of oil and about 60% of the volume of compressed air are installed in the pressure oil tank. Due to the compressible characteristics of air, like a spring, it can store energy, so that the pressure in the pressure oil tank only changes within a very small range during use. During operation, the pressure in the pressure oil tank is mainly maintained by the oil pump, and the oil level is mainly adjusted by exhausting or supplementing air. When the oil level is high, air should be supplemented, and on the contrary, when the oil level is low, air should be exhausted. During operation, due to oil leakage from valve groups, servomotors, oil receivers, pipelines, etc., some of the leaked oil cannot return to the return oil tank or leakage oil tank, resulting in less or lack of oil in the oil system. Therefore, monitoring should be strengthened during operation. When there is oil leakage, the total amount of oil in the oil system will decrease, which will affect the safe operation of the equipment and also cause certain pollution to the on-site environment. Currently, it is mainly monitored by operating personnel, resulting in a large labor intensity for the operating personnel and insufficient operating stability and reliability of the oil pressure device. Summary of the Invention

[0003] The purpose of the present invention is to provide an oil balance system, method, medium and device for a governor oil pressure device, aiming to improve the operating stability and reliability of the oil pressure device, reduce the labor intensity of operating personnel, and meet the requirements of unattended or less attended operation. The specific technical solutions are as follows:

[0004] An oil balance system for a governor oil pressure device, comprising:

[0005] A pressure oil tank,

[0006] A return oil tank, one oil path of the return oil tank is connected to the pressure oil tank through a valve group and a servomotor, and the return of oil from the pressure oil tank to the return oil tank is controlled through the valve group and the servomotor; another oil path of the return oil tank is connected to the pressure oil tank through a first oil pump motor, and the supply of oil from the return oil tank to the pressure oil tank is controlled through the first oil pump motor;

[0007] A leakage oil tank, one oil path of the leakage oil tank is connected to the servomotor to receive the leaked oil of the servomotor, and another oil path of the leakage oil tank is connected to the return oil tank through a second oil pump motor, and the return of oil from the leakage oil tank to the return oil tank is controlled through the second oil pump motor;

[0008] The oil pressure control unit controls the automatic operation of the first oil pump motor and the second oil pump motor, receives the real-time collected liquid level signals to calculate the total oil volume of the oil balance system, and alarms when the total oil volume exceeds the set value.

[0009] Further, the real-time collected liquid level signals include the pressure oil tank liquid level, the return oil tank liquid level, and the leakage oil tank liquid level.

[0010] Further, the liquid level signals are measured by liquid level transmitters.

[0011] Further, the formula for calculating the total oil volume is as follows:

[0012] V_T=S_1*H_1+S_2*H_2+S_3*H_3+V_4con

[0013] Where, V_T is the total oil volume, S_1 is the cross-sectional area of the pressure oil tank, H_1 is the pressure oil tank liquid level, S_2 is the cross-sectional area of the return oil tank, H_2 is the return oil tank liquid level, S_3 is the cross-sectional area of the leakage oil tank, H_3 is the leakage oil tank liquid level, and V_4con is the oil stored in the oil circuit.

[0014] Further, the oil pressure control unit is arranged in the oil pump control cabinet.

[0015] Further, an alarm is given when the change in the total oil volume exceeds 10% of the initial total oil volume.

[0016] The present invention also provides an oil balance method for a governor oil pressure device, which is used to control the oil balance system of the governor oil pressure device as described above, and includes the following steps:

[0017] S100. Receive the real-time collected liquid level signals to calculate the total oil volume of the oil balance system;

[0018] S200. Judge the magnitude of the total oil volume and the set value, and alarm when the total oil volume exceeds the set value.

[0019] The present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the oil balance method of the governor oil pressure device as described above are implemented.

[0020] The present invention also provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the oil balance method of the governor oil pressure device as described above are implemented.

[0021] The oil balance system, method, medium, and device of a governor oil pressure device provided by the present invention have the following beneficial effects:

[0022] In the present invention, an oil return tank is provided. One oil path of the oil return tank is connected to a pressure oil tank through a valve group and a servomotor, and the valve group and the servomotor are used to control the pressure oil tank to return oil to the oil return tank. Another oil path of the oil return tank is connected to the pressure oil tank through a first oil pump motor, and the first oil pump motor is used to control the oil return tank to supply oil to the pressure oil tank. An oil leakage tank has one oil path connected to the servomotor to receive the oil leakage of the servomotor. Another oil path of the oil leakage tank is connected to the oil return tank through a second oil pump motor, and the second oil pump motor is used to control the oil leakage tank to return oil to the oil return tank. An oil pressure control unit controls the automatic operation of the first oil pump motor and the second oil pump motor, receives the liquid level signals collected in real time to calculate the total oil volume of the oil balance system, and gives an alarm when the total oil volume exceeds the set value. Therefore, it is possible to automatically and real-time monitor the oil balance of the governor oil pressure device, give an alarm when the oil balance exceeds the set upper and lower limits, remind the operator to conduct inspections, reduce the labor intensity of the operator, meet the requirements of unattended or few-attended operation, and improve the operation stability and reliability of the oil pressure device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of an oil balance system for a governor oil pressure device provided by the present invention;

[0024] Figure 2 is a schematic flow diagram of an oil balance method for a governor oil pressure device provided by the present invention;

[0025] Figure 3 is a structural block diagram of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings provided by the present invention. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention.

[0027] Embodiment 1

[0028] This embodiment provides an oil balance system for a governor oil pressure device. Referring to Figure 1 as shown, it includes:

[0029] A pressure oil tank,

[0030] An oil return tank. One oil path of the oil return tank is connected to the pressure oil tank through a valve group and a servomotor, and the valve group and the servomotor are used to control the pressure oil tank to return oil to the oil return tank. Another oil path of the oil return tank is connected to the pressure oil tank through a first oil pump motor, and the first oil pump motor is used to control the oil return tank to supply oil to the pressure oil tank.

[0031] A leaking oil tank, one oil path of the leaking oil tank is communicated with the servomotor to receive the leaked oil of the servomotor, and the other oil path of the leaking oil tank is communicated with the return oil tank through a second oil pump motor, and the second oil pump motor is used to control the leaking oil tank to return oil to the return oil tank;

[0032] The oil pressure control unit (not shown in the figure) controls the automatic operation of the first oil pump motor and the second oil pump motor, and receives the liquid level signals collected in real time to calculate the total oil volume of the oil balance system, and alarms when the total oil volume exceeds the set value.

[0033] In one embodiment, the liquid level signals collected in real time include the liquid level of the pressure oil tank, the liquid level of the return oil tank, and the liquid level of the leaking oil tank. Specifically, the liquid level signals are measured by a liquid level transmitter.

[0034] The oil balance system of the entire governor oil pressure device includes: the oil storage in the pressure oil tank, the oil storage in the return oil tank, the oil storage in the leaking oil tank, and the oil stored in the oil path. According to the principle that oil is incompressible, the total oil volume in the system can be calculated based on the liquid level of the pressure oil tank, the liquid level of the return oil tank, the liquid level of the leaking oil tank, and the oil stored in the oil path.

[0035] In one embodiment, the formula for calculating the total oil volume is as follows:

[0036] V_T = S_1 * H_1 + S_2 * H_2 + S_3 * H_3 + V_4con

[0037] Wherein, V_T is the total oil volume, S_1 is the cross-sectional area of the pressure oil tank, H_1 is the liquid level of the pressure oil tank, S_2 is the cross-sectional area of the return oil tank, H_2 is the liquid level of the return oil tank, S_3 is the cross-sectional area of the leaking oil tank, H_3 is the liquid level of the leaking oil tank, and V_4con is the oil stored in the oil path.

[0038] In one embodiment, the oil pressure control unit is arranged in the oil pump control cabinet.

[0039] When the total oil volume exceeds the upper limit value, for example, when the total oil volume increases during operation, it may indicate that the oil pressure device pumps oil too frequently, the oil temperature rises, or there are too many steam drums in the return oil tank, reminding the operator to pay attention. When the total oil volume exceeds the lower limit value, for example, when the total oil volume decreases during operation, it may indicate that there is a possibility of oil discharge in the oil pressure device system, and an alarm should also be given immediately and processed.

[0040] In one embodiment, an alarm is given when the change in the total oil volume exceeds 10% of the initial total oil volume.

[0041] The oil balance system of the governor oil pressure device provided by the present invention is such that on one oil path of the oil return tank, it is connected to the pressure oil tank through a valve group and a servomotor, and the pressure oil tank is controlled to return oil to the oil return tank through the valve group and the servomotor; on the other oil path of the oil return tank, it is connected to the pressure oil tank through a first oil pump motor, and the oil return tank is controlled to supply oil to the pressure oil tank through the first oil pump motor; on one oil path of the oil leakage tank, it is connected to the servomotor to receive the oil leakage from the servomotor, and on the other oil path of the oil leakage tank, it is connected to the oil return tank through a second oil pump motor, and the oil leakage tank is controlled to return oil to the oil return tank through the second oil pump motor; the oil pressure control unit controls the automatic operation of the first oil pump motor and the second oil pump motor, and receives the liquid level signals collected in real time to calculate the total oil volume of the oil balance system, and alarms when the total oil volume exceeds the set value; thus, it can automatically and real-time monitor the oil balance situation of the governor oil pressure device, alarms when the oil balance exceeds the set upper and lower limits, reminds the operating personnel to conduct inspections, can reduce the labor intensity of the operating personnel, meet the requirements of unattended or less attended operation, and improve the operation stability and reliability of the oil pressure device.

[0042] Embodiment 2

[0043] This embodiment provides an oil balance method for a governor oil pressure device, which is used to realize the control of the oil balance system of the governor oil pressure device as described above. Refer to Figure 2 As shown, the method includes the following steps:

[0044] S100. Receive the liquid level signals collected in real time and calculate the total oil volume of the oil balance system;

[0045] S200. Judge the magnitude of the total oil volume and the set value, and alarm when the total oil volume exceeds the set value.

[0046] Embodiment 3

[0047] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the oil balance method of the governor oil pressure device described above are realized.

[0048] Among them, the storage medium can be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory, a Hard Disk Drive (abbreviation: HDD) or a Solid-State Drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0049] Embodiment 4

[0050] This embodiment provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the oil balance method of the governor oil pressure device described above are implemented.

[0051] As Figure 3 shown, the computer device may include at least one processor 71, such as a CPU (Central Processing Unit), at least one communication interface 73, a memory 74, and at least one communication bus 72. Among them, the communication bus 72 is used to realize the connection and communication between these components. Among them, the communication interface 73 may include a display screen and a keyboard. Optionally, the communication interface 73 may also include a standard wired interface and a wireless interface. The memory 74 may be a high-speed RAM memory (Random Access Memory), or a non-volatile memory, such as at least one disk memory. Optionally, the memory 74 may also be at least one storage device located far from the aforementioned processor 71. Among them, an application program is stored in the memory 74, and the processor 71 calls the program code stored in the memory 74 to execute any of the above method steps.

[0052] Among them, the communication bus 72 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The communication bus 72 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 3 only a thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus.

[0053] Among them, the memory 74 may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory, such as a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory 74 may also include a combination of the above types of memories.

[0054] Among them, the processor 71 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

[0055] Among them, the processor 71 may further include a hardware chip. The above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0056] Optionally, the memory 74 is further configured to store program instructions. The processor 71 may call the program instructions to implement the oil balance method of the governor oil pressure device of the present invention.

[0057] Those skilled in the art of this technology should understand that the present invention can be implemented in many other specific forms without departing from the spirit and scope of the present invention. Based on the embodiments in the present invention, any changes and modifications made by those of ordinary skill in the art of the present invention according to the above disclosure are within the protection scope of the claims.

Claims

1. An oil balance system for a governor oil pressure device, characterized in that, Including: A pressure oil tank An oil return tank, one oil path of the oil return tank is communicated with the pressure oil tank through a valve group and a servomotor, and the oil return from the pressure oil tank to the oil return tank is controlled through the valve group and the servomotor; the other oil path of the oil return tank is communicated with the pressure oil tank through a first oil pump motor, and the oil supply from the oil return tank to the pressure oil tank is controlled through the first oil pump motor; A leakage oil tank, one oil path of the leakage oil tank is communicated with the servomotor to receive the leaked oil of the servomotor, and the other oil path of the leakage oil tank is communicated with the oil return tank through a second oil pump motor, and the oil return from the leakage oil tank to the oil return tank is controlled through the second oil pump motor; The oil pressure control unit controls the automatic operation of the first oil pump motor and the second oil pump motor, receives the liquid level signals collected in real time to calculate the total oil volume of the oil balance system, and gives an alarm when the total oil volume exceeds the set value.

2. The oil balance system of the governor oil pressure device according to claim 1, wherein The liquid level signals collected in real time include the liquid level of the pressure oil tank, the liquid level of the oil return tank and the liquid level of the leakage oil tank.

3. The oil balance system of the governor oil pressure device according to claim 2, characterized in that, The liquid level signals are measured by a liquid level transmitter.

4. The oil balance system of the governor oil pressure device according to claim 2, characterized in that, The calculation formula for the total oil volume is as follows: V_T = S_1 * H_1 + S_2 * H_2 + S_3 * H_3 + V_4con Wherein, V_T is the total oil volume, S_1 is the cross-sectional area of the pressure oil tank, H_1 is the liquid level of the pressure oil tank, S_2 is the cross-sectional area of the oil return tank, H_2 is the liquid level of the oil return tank, S_3 is the cross-sectional area of the leakage oil tank, H_3 is the liquid level of the leakage oil tank, and V_4con is the oil stored in the oil path.

5. The oil balance system of the governor oil pressure device according to claim 1, characterized in that, The oil pressure control unit is arranged in the oil pump control cabinet.

6. The oil balance system of the governor oil pressure device according to claim 1, characterized in that, An alarm is given when the change in the total oil volume exceeds 10% of the initial total oil volume.

7. An oil balance method for a governor oil pressure device, which is used to control the oil balance system of the governor oil pressure device according to any one of claims 1-6, and includes the following steps: S100. Receive the liquid level signals collected in real time to calculate the total oil volume of the oil balance system; S200. Judge the magnitude of the total oil volume and the set value, and give an alarm when the total oil volume exceeds the set value.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, the steps of the oil balance method of the governor oil pressure device according to claim 7 are implemented.

9. A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, the steps of the oil balance method of the governor oil pressure device according to claim 7 are implemented.

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