Oil filtering pipeline fault automatic processing device
By combining flow relays and solenoid valves, the flow difference between the transformer and the oil filter pipeline is automatically detected, realizing the automated handling of transformer oil leakage, solving the problem of pipeline faults not being detected in time, and improving fault handling efficiency.
Patent Information
- Application Number
- CN202511651783.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-02-13
AI Technical Summary
In the existing technology, pipeline faults between the transformer and the oil filter, such as oil pipe rupture or loose flange connection, can lead to transformer oil leakage, which cannot be detected and dealt with in a timely manner, affecting work efficiency and easily causing operational errors.
By using a combination of flow relays and solenoid valves, faults can be automatically identified and the solenoid valves can be closed by detecting differences in pipeline flow, thus achieving automated fault handling.
This reduced transformer oil leakage, shortened fault handling time, improved fault handling efficiency, and ensured the normal operation of the transformer.
Smart Images
Figure CN121520535A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of transformer hot oil circulation technology, specifically relating to an automatic fault handling device for oil filter pipelines. Background Technology
[0002] In power systems, when transformers are installed and hot oil is circulated, if a fault occurs in the pipeline connecting the transformer and the oil filter, such as a ruptured oil pipe or a loose flange connection, a large amount of transformer oil will flow out from the fault point in a short period of time, affecting the quality of transformer installation and causing environmental pollution.
[0003] Currently, the main method for handling the above-mentioned hidden dangers relies on on-duty personnel manually closing four valves at both the transformer and the oil filter machine immediately after discovering a pipeline fault during the oil filtration process. However, the above operation has the following drawbacks and shortcomings: 1. On-duty personnel may not be able to detect and handle transformer oil leaks immediately, affecting work efficiency; 2. When on-duty personnel manually close valves, the operation procedure is cumbersome and prone to errors that could lead to losses.
[0004] Therefore, it is necessary to detect transformer oil leaks in real time and automatically so that faults can be dealt with and intervened as soon as they occur. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic handling device for oil filter pipeline faults.
[0006] The technical problem solved by this invention is achieved through the following technical solution: An automatic fault handling device for oil filtration pipeline includes a transformer and an oil filter. The oil outlet of the transformer is connected to the oil inlet of the oil filter through a first pipeline, and the oil outlet of the oil filter is connected to the oil inlet of the transformer through a second pipeline. A first flow relay, a first solenoid valve, a second flow relay, and a second solenoid valve are respectively installed on the first pipeline on one side of the transformer and the oil filter. The first flow relay, the first solenoid valve, the second flow relay, and the second solenoid valve are all connected to a first intermediate relay.
[0007] Furthermore, a third flow relay, a third solenoid valve, a fourth flow relay, and a fourth solenoid valve are respectively installed on the second pipeline on the side of the transformer and the oil filter. The third flow relay, the third solenoid valve, the fourth flow relay, and the fourth solenoid valve are all connected to the second intermediate relay.
[0008] Furthermore, the first flow relay at the transformer oil outlet detects a flow rate of Q1, and the second flow relay at the oil filter inlet detects a flow rate of Q2. When the first pipeline is working normally, Q1=Q2, so the first and second solenoid valves remain open. When an oil leak occurs on the first pipeline, Q1>Q2, so the first intermediate relay controls the first and second solenoid valves to close automatically and triggers a fault alarm.
[0009] Furthermore, the third flow relay at the transformer inlet detects a flow rate of Q3, and the fourth flow relay at the oil filter outlet detects a flow rate of Q4. When the second pipeline is working normally, Q3=Q3, so the third and fourth solenoid valves remain open. When an oil leak occurs on the second pipeline, Q4>Q3, so the second intermediate relay controls the third and fourth solenoid valves to close automatically and triggers a fault alarm.
[0010] The advantages and beneficial effects of this invention are as follows: 1. This invention reduces the number of shifts for on-duty personnel during the transformer hot oil circulation process, shortens the response time for fault handling, and reduces the amount of transformer oil leakage during faults.
[0011] 2. This invention automatically determines whether a pipeline is faulty by comparing the inflow and outflow of oil, shortening the reaction time after a pipeline fault occurs. It automatically cuts off the faulty pipeline by controlling the solenoid valve through a relay, and at the same time issues an alarm message, improving the efficiency of fault handling. It has a high degree of automation and ensures the normal operation of the transformer. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the present invention.
[0013] Explanation of reference numerals in the attached figures 1-Transformer, 2-First flow relay, 3-First solenoid valve, 4-First pipeline, 5-Second solenoid valve, 6-Second flow relay, 7-First intermediate relay, 8-Oil filter, 9-Fourth flow relay, 10-Fourth solenoid valve, 11-Second intermediate relay, 12-Second pipeline, 13-Third solenoid valve, 14-Third flow relay. Detailed Implementation
[0014] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.
[0015] An automatic fault handling device for oil filtration pipelines is innovative in that it includes a transformer 1 and an oil filter 8. The oil outlet of the transformer is connected to the oil inlet of the oil filter through a first pipeline 4, and the oil outlet of the oil filter is connected to the oil inlet of the transformer through a second pipeline. A first flow relay 2, a first solenoid valve 3, a second flow relay 6, and a second solenoid valve 5 are respectively installed on the first pipeline on one side of the transformer and the oil filter. The first flow relay, the first solenoid valve, the second flow relay, and the second solenoid valve are all connected to a first intermediate relay 7.
[0016] A third flow relay, a third solenoid valve, a fourth flow relay 9, and a fourth solenoid valve 10 are respectively installed on the second pipeline 12 on the side of the transformer and the oil filter. The third flow relay 14, the third solenoid valve 13, the fourth flow relay, and the fourth solenoid valve are all connected to the second intermediate relay 11.
[0017] The working process of the first pipeline of the present invention is as follows: The first flow relay at the transformer oil outlet detects a flow rate of Q1, and the second flow relay at the oil filter inlet detects a flow rate of Q2. When the first pipeline is working normally, Q1=Q2, so the first and second solenoid valves remain open. When an oil leak occurs on the first pipeline, Q1>Q2, so the first intermediate relay controls the first and second solenoid valves to close automatically and triggers a fault alarm.
[0018] The working process of the second pipeline of the present invention is as follows: The third flow relay at the transformer inlet detects a flow rate of Q3, and the fourth flow relay at the oil filter outlet detects a flow rate of Q4. When the second pipeline is working normally, Q3=Q3, so the third and fourth solenoid valves remain open. When an oil leak occurs on the second pipeline, Q4>Q3, so the second intermediate relay controls the third and fourth solenoid valves to close automatically and triggers a fault alarm.
[0019] This invention automatically determines whether a pipeline is faulty by comparing the inflow and outflow of oil, shortening the reaction time after a pipeline fault occurs. It automatically cuts off the faulty pipeline by controlling the solenoid valve through a relay, and at the same time issues an alarm message, improving fault handling efficiency, with a high degree of automation, and ensuring the normal operation of the transformer.
[0020] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.
Claims
1. An automatic fault handling device for oil filter pipelines, characterized in that: The system includes a transformer and an oil filter. The oil outlet of the transformer is connected to the oil inlet of the oil filter via a first pipeline, and the oil outlet of the oil filter is connected to the oil inlet of the transformer via a second pipeline. A first flow relay, a first solenoid valve, a second flow relay, and a second solenoid valve are respectively installed on the first pipeline on one side of the transformer and the oil filter. The first flow relay, the first solenoid valve, the second flow relay, and the second solenoid valve are all connected to a first intermediate relay.
2. The automatic fault handling device for oil filter pipeline according to claim 1, characterized in that: A third flow relay, a third solenoid valve, a fourth flow relay, and a fourth solenoid valve are respectively installed on the second pipeline on the side of the transformer and the oil filter. The third flow relay, the third solenoid valve, the fourth flow relay, and the fourth solenoid valve are all connected to the second intermediate relay.
3. The automatic fault handling device for oil filter pipeline according to claim 1, characterized in that: The first flow relay at the transformer oil outlet detects a flow rate of Q1, and the second flow relay at the oil filter inlet detects a flow rate of Q2. When the first pipeline is working normally, Q1=Q2, so the first and second solenoid valves remain open. When an oil leak occurs on the first pipeline, Q1>Q2, so the first intermediate relay controls the first and second solenoid valves to close automatically and triggers a fault alarm.
4. The automatic fault handling device for oil filter pipeline according to claim 1, characterized in that: The third flow relay at the transformer inlet detects a flow rate of Q3, and the fourth flow relay at the oil filter outlet detects a flow rate of Q4. When the second pipeline is working normally, Q3=Q3, so the third and fourth solenoid valves remain open. When an oil leak occurs on the second pipeline, Q4>Q3, so the second intermediate relay controls the third and fourth solenoid valves to close automatically and triggers a fault alarm.