CN116580936A - Quick oil discharge pressure relief explosion-proof transformer - Google Patents
Quick oil discharge pressure relief explosion-proof transformer Download PDFInfo
- Publication number
- CN116580936A CN116580936A CN202310798794.XA CN202310798794A CN116580936A CN 116580936 A CN116580936 A CN 116580936A CN 202310798794 A CN202310798794 A CN 202310798794A CN 116580936 A CN116580936 A CN 116580936A
- Authority
- CN
- China
- Prior art keywords
- pressure release
- oil tank
- oil
- connecting pipe
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000010891 electric arc Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
A quick oil discharge pressure relief explosion-proof transformer relates to the field of transformers. The device is designed for mainly solving the problem that the flammable gas generated by discharging of the existing oil immersed transformer can be gathered in the oil tank rapidly, and explosion is easy to be caused under the condition of untimely pressure relief. The pressure release valve comprises an oil tank, a tank cover is connected to the top of the oil tank, an iron core is arranged in the oil tank, a coil is wound on the iron core, a low-pressure sleeve, a high-pressure sleeve and a lifting seat are arranged on the tank cover, and the pressure release valve is arranged on the oil tank. A main connecting pipe and a pressure release auxiliary connecting pipe are connected between the oil tank and the oil storage cabinet, a gas relay and a check valve are arranged on the main connecting pipe, and a normally closed pressure release valve is arranged on the pressure release auxiliary connecting pipe; the oil storage cabinet is connected with a moisture absorber pipeline, and the other end of the moisture absorber pipeline is connected with a quick breathing moisture absorber; the pressure release valve is linked with the normally closed pressure release valve and the check valve. The method has the advantage of effectively and quickly reducing the risk of explosion accidents of the transformer caused by faults such as internal short circuit or arc discharge and the like of the transformer.
Description
Technical Field
The invention relates to the field of transformers, in particular to an explosion-proof transformer with a rapid oil discharge and pressure relief function.
Background
The oil immersed transformer is a core component in a transformer substation, is key to realizing normal operation of a power grid, and plays a role of a heart in a power system. However, the oil-immersed power transformer inevitably has the hidden trouble of arc discharge generated inside the transformer due to internal short circuit, operation overvoltage, lightning overvoltage, overload and the like. Because the transformer oil tank is a totally-enclosed whole, the flammable gas generated by discharging can be rapidly gathered in the oil tank, so that the pressure in the oil tank can be rapidly increased, and serious accidents such as explosion and the like can be easily caused under the condition of untimely pressure relief. In particular, transformer oil inside a transformer has combustibility, and once the transformer explodes, serious fire accidents are caused, so that the power grid in the whole area is paralyzed, and the loss is immeasurable.
Disclosure of Invention
The invention aims to solve the technical problem of providing the quick oil discharge pressure relief explosion-proof transformer which can quickly discharge oil in the transformer to effectively relieve pressure when faults such as short circuit or arc discharge occur in the transformer to cause the internal pressure to be rapidly increased, thereby playing a role in explosion prevention.
In order to solve the technical problems, the invention adopts the following technical scheme;
the novel oil tank is the same as the prior art in that the novel oil tank also comprises an oil tank, a tank cover is connected to the top of the oil tank through a bolt, an iron core is arranged in the oil tank, a coil is wound on the iron core, an upper clamping piece and a lower clamping piece are connected with an iron core pulling plate into a whole through bolts respectively, a low-pressure sleeve, a high-pressure sleeve and a lifting seat are further arranged on the tank cover, and a pressure release valve is arranged on the oil tank. The outside of the oil tank is provided with an oil storage cabinet, and a main connecting pipe is connected between the oil tank and the oil storage cabinet, and is characterized in that: the main connecting pipe is provided with a gas relay and a check valve, a pressure release auxiliary connecting pipe is additionally arranged between the oil storage tank and the oil tank, and the pressure release auxiliary connecting pipe is provided with a normally closed pressure release valve; the oil storage cabinet is connected with a quick breathing absorber pipeline, and the other end of the absorber pipeline is connected with a quick breathing absorber; the pressure release valve on the oil tank is linked with the normally closed pressure release valve on the pressure release auxiliary connecting pipe and the check valve on the main connecting pipe.
The pipe diameter of the pressure release pair connecting pipe is 300mm.
The invention has the advantages that: the transformer explosion accident risk caused by faults such as internal short circuit or arc discharge and the like of the transformer can be effectively and rapidly reduced, the transformer explosion accident risk is safe and reliable, the popularization is convenient, and the cost loss of a transformer substation can be effectively reduced. The structure also has the characteristics of low cost, high utility, sensitive reaction, simplicity, convenience and practicability and wide application range.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further described with reference to fig. 1;
the novel oil tank is the same as the prior art in that the novel oil tank also comprises an oil tank 1, a tank cover is connected to the top of the oil tank through a bolt, an iron core is arranged in the oil tank, a coil 2 is wound on the iron core, an upper clamping piece and a lower clamping piece are connected with an iron core pulling plate into a whole through bolts respectively, a low-pressure sleeve, a high-pressure sleeve and a lifting seat are further arranged on the tank cover, and a pressure release valve 3 is arranged on the oil tank. The outside of the oil tank is provided with an oil storage cabinet 4, and a main connecting pipe 5 is connected between the oil tank and the oil storage cabinet, and is characterized in that: the main connecting pipe is provided with a gas relay 6 and a check valve 7, a pressure release auxiliary connecting pipe 8 with a large pipe diameter (the pipe diameter is 300 mm) is additionally arranged between the oil tank and the oil tank, and the pressure release auxiliary connecting pipe is provided with a normally closed pressure release valve 9; the oil conservator is connected with a quick breathing absorber pipeline 10, and the other end of the absorber pipeline is connected with a quick breathing absorber 11; the pressure release valve on the oil tank is linked with the normally closed pressure release valve on the pressure release auxiliary connecting pipe and the check valve on the main connecting pipe.
Working principle: the opening pressure of the pressure release valve on the oil tank is the same as that of the normally closed pressure release valve on the pressure release auxiliary connecting pipe, when the internal pressure of the transformer is rapidly increased due to faults such as short circuit or arc discharge and the like, and the pressure release valve acts, the partition plate of the check valve on the main connecting pipe is pushed by oil flow to be kept open, oil is discharged and discharged to the oil storage cabinet, the normally closed pressure release valve on the pressure release auxiliary connecting pipe is synchronously opened, transformer oil in the transformer is effectively and rapidly discharged to the oil storage cabinet and the outside of the oil tank, the explosion-proof effect is achieved, and the ventilation and the pressure relief of the quick breathing pipeline are realized; when the internal pressure of the transformer is reduced, a normally closed pressure release valve on the pressure release auxiliary connecting pipe and a check valve on the main connecting pipe are reset and closed, so that oil in the oil storage tank is blocked from flowing back into the oil inlet tank, oil casting on fire is avoided, the pressure release valve on the oil tank is closed, transformer oil in the oil tank is blocked from contacting with air, a fireproof effect is achieved, and a quick breathing pipeline is closed without ventilation. The closing pressure of the pressure release valve and the pressure release valve is the same, and the pressure release valve are simultaneously blocked when the pressure is reduced, so that backflow is avoided.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (2)
1. The utility model provides a quick oil extraction pressure release explosion-proof type transformer, includes oil tank (1), and the case lid passes through bolted connection at the oil tank top, has the iron core in the oil tank, and coil (2) twine on the iron core, and upper folder, lower folder are connected into an organic wholely with the iron core arm-tie through the bolt respectively, still are equipped with low pressure sleeve pipe and high pressure sleeve pipe and rise seat on the case lid, and pressure relief valve (3) are installed on the oil tank; the outside of the oil tank is provided with an oil storage cabinet (4), and a main connecting pipe (5) is connected between the oil tank and the oil storage cabinet, and is characterized in that: a gas relay (6) and a check valve (7) are arranged on the main connecting pipe, a pressure release auxiliary connecting pipe (8) is arranged between the oil storage cabinet and the oil tank, and a normally closed pressure release valve (9) is arranged on the pressure release auxiliary connecting pipe; the oil storage cabinet is connected with a quick breathing absorber pipeline (10), and the other end of the absorber pipeline is connected with a quick breathing absorber (11); the pressure release valve on the oil tank is linked with the normally closed pressure release valve on the pressure release auxiliary connecting pipe and the check valve on the main connecting pipe.
2. The rapid oil drainage pressure relief explosion-proof transformer according to claim 1, wherein: the pipe diameter of the pressure release pair connecting pipe is 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310798794.XA CN116580936A (en) | 2023-07-03 | 2023-07-03 | Quick oil discharge pressure relief explosion-proof transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310798794.XA CN116580936A (en) | 2023-07-03 | 2023-07-03 | Quick oil discharge pressure relief explosion-proof transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116580936A true CN116580936A (en) | 2023-08-11 |
Family
ID=87543379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310798794.XA Pending CN116580936A (en) | 2023-07-03 | 2023-07-03 | Quick oil discharge pressure relief explosion-proof transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116580936A (en) |
-
2023
- 2023-07-03 CN CN202310798794.XA patent/CN116580936A/en active Pending
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |