High-pressure safety oil anti-abnormal-movement device
By designing a high-pressure safety oil-anti-dynamic device including two solenoid valves and pressure gauge, the problem of lack of safety redundancy and unmonitored system for quick shutdown control of oil motors is solved, and higher safety and reliability are achieved, reducing operating risks and maintenance costs.
Patent Information
- Application Number
- CN202422059467.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, the quick shutdown control of the oil motor lacks safety redundancy and has no monitoring system, which causes the solenoid valve to fail or misoperate, which may cause the valve to close quickly, affect production, and it is difficult to quickly detect the fault.
A high-pressure safety oil anti-abnormal movement device is designed, including a mounting seat, an oil hole, a first oil passage, a second oil passage, a third oil passage, a first solenoid valve, a second solenoid valve and a pressure gauge. By setting two solenoid valves and a pressure gauge, it is ensured that any solenoid valve fails or misoperation will not cause the valve to close, and the fault is quickly judged through the pressure gauge reading.
It increases the safety redundancy of the oil motor control system, reduces the unit operation risks and maintenance costs, and ensures the reliability and monitoring of the valve.
Smart Images
Figure CN222848256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil motors, in particular to a high-pressure safety oil anti-abnormal movement device. Background Art
[0002] In the turbine feed pump control system, the oil motor is usually controlled by the emergency safety oil pressure (AST) to quickly close. In the early stage, the emergency safety oil only had one solenoid valve to realize the independent control of the safety oil pressure. The shutdown solenoid valve is often energized during the normal operation of the unit. When the shutdown is required, the solenoid valve loses power and removes the safety oil pressure to quickly shut down the oil motor.
[0003] The prior art system has the following problems:
[0004] 1. A single solenoid valve controls the quick closing of the oil motor, lacking safety redundancy. When the shutdown solenoid valve or its power supply fails or the staff operates improperly, the valve will malfunction and close quickly, affecting on-site production.
[0005] 2. The oil circuit has no monitoring system. If a valve fails, it is difficult for on-site personnel to quickly discover the problem. Utility Model Content
[0006] The utility model aims to provide a high-pressure safety oil anti-abnormal movement device to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure safety oil anti-movement device, including a mounting seat, characterized in that: an oil hole, a first oil channel, a second oil channel and a third oil channel are provided in the mounting seat, a first solenoid valve and a second solenoid valve are provided on the mounting seat, the oil hole passes through the first solenoid valve and the second solenoid valve in sequence, the two ends of the first oil channel are respectively connected to the oil inlet and the oil outlet of the first solenoid valve, one end of the second oil channel is connected to the first solenoid valve, and the other end is connected to the oil outlet of the first solenoid valve, one end of the third oil channel is connected to the second solenoid valve, and the other end is connected to the oil outlet of the second solenoid valve, and a pressure gauge is provided between the first solenoid valve and the second solenoid valve.
[0008] Preferably, the pressure gauge is arranged at the top of the mounting seat, and the bottom end thereof is connected to the oil hole.
[0009] Preferably, the mounting seat is in a rectangular shape, and the oil passage is arranged along the center of the length direction of the mounting seat.
[0010] Preferably, a stop valve is provided between the pressure gauge and the oil channel.
[0011] Preferably, connecting pipes are provided at both ends of the oil hole.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting the first solenoid valve, the second solenoid valve and the pressure gauge, the failure or malfunction of any solenoid valve will not cause the valve to close; when the gate needs to be opened, it is only necessary to cut off the power to both solenoid valves to quickly close the valves; at the same time, on-site personnel can quickly determine the faulty solenoid valve based on the pressure gauge reading, which is convenient for maintenance; the utility model adds safety redundancy to the EH control system of the oil motor, reducing the unit operation risk and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is the principle diagram of the utility model.
[0015] In the figure: 1. mounting seat; 2. oil hole; 21. connecting pipe; 3. first oil channel; 4. second oil channel; 5. third oil channel; 6. first solenoid valve; 7. second solenoid valve; 8. pressure gauge; 9. stop valve. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1 to Figure 2The utility model provides a technical solution: a high-pressure safety oil anti-movement device, including a mounting seat 1, an oil hole 2, a first oil passage 3, a second oil passage 4 and a third oil passage 5 are arranged in the mounting seat 1, the mounting seat 1 is in a rectangular shape, the oil hole 2 is arranged along the center of the length direction of the mounting seat, and connecting pipes 21 are arranged at both ends of the oil hole 2 to facilitate connecting the mounting seat 1 with the AST oil circuit of the oil motor, and a first solenoid valve 6 and a second solenoid valve 7 are arranged on the mounting seat 1, and the first solenoid valve 6 and the second solenoid valve 7 are arranged on the side of the mounting seat 1. The oil hole 2 passes through the first solenoid valve 6 and the second solenoid valve 7 in sequence. The oil of the emergency safety oil pressure (AST) flows from the oil hole 2 through the first solenoid valve 6 and the second solenoid valve 7. The two ends of the first oil 3 are respectively connected to the oil inlet and the oil outlet of the first solenoid valve 6. One end of the second oil passage 4 is connected to the first solenoid valve 6 and the other end is connected to the oil outlet of the first solenoid valve 6. One end of the third oil passage 5 is connected to the second solenoid valve 7 and the other end is connected to the oil outlet of the second solenoid valve 7. A pressure gauge 8 is provided between the first solenoid valve 6 and the second solenoid valve 7. The pressure gauge 8 is provided at the top of the mounting seat 1, and its bottom end is connected to the oil hole 2. A stop valve 9 is provided between the pressure gauge and the oil hole 2. The first solenoid valve 7 and the second solenoid valve 7 and a pressure gauge 8 are installed. The failure or malfunction of any solenoid valve will not cause the valve to close. When the gate needs to be opened, the valves can be quickly closed by simply turning off the power of both solenoid valves. At the same time, the on-site personnel can quickly determine the faulty solenoid valve according to the pressure gauge reading, which is convenient for maintenance.
[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-pressure safety oil anti-movement device, comprising a mounting seat, characterized in that: An oil hole, a first oil channel, a second oil channel and a third oil channel are provided in the mounting seat, a first solenoid valve and a second solenoid valve are provided on the mounting seat, the oil hole passes through the first solenoid valve and the second solenoid valve in sequence, two ends of the first oil channel are respectively connected to the oil inlet and the oil outlet of the first solenoid valve, one end of the second oil channel is connected to the first solenoid valve, and the other end is connected to the oil outlet of the first solenoid valve, one end of the third oil channel is connected to the second solenoid valve, and the other end is connected to the oil outlet of the second solenoid valve, and a pressure gauge is provided between the first solenoid valve and the second solenoid valve.
2. A high-pressure safety oil anti-movement device according to claim 1, characterized in that: The pressure gauge is arranged on the top of the mounting seat, and the bottom end thereof is connected with the oil hole.
3. A high-pressure safety oil anti-movement device according to claim 2, characterized in that: The mounting seat is in a rectangular parallelepiped shape, and the oil hole is arranged along the center of the length direction of the mounting seat.
4. A high-pressure safety oil anti-movement device according to claim 3, characterized in that: A stop valve is arranged between the pressure gauge and the oil hole.
5. A high-pressure safety oil anti-movement device according to claim 4, characterized in that: Connecting pipes are arranged at both ends of the oil hole.