CN111595637A - Gas collection box and transformer - Google Patents
Gas collection box and transformer Download PDFInfo
- Publication number
- CN111595637A CN111595637A CN202010436334.9A CN202010436334A CN111595637A CN 111595637 A CN111595637 A CN 111595637A CN 202010436334 A CN202010436334 A CN 202010436334A CN 111595637 A CN111595637 A CN 111595637A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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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
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- Life Sciences & Earth Sciences (AREA)
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- Combustion & Propulsion (AREA)
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- Food Science & Technology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention provides a gas collection box and a transformer, wherein the gas collection box is arranged on the transformer and connected with an exhaust port of a gas relay, and an oil inlet pipe of the gas collection box is arranged on one side of the gas collection box; the sensor and the oil inlet pipe are arranged on the same side of the gas collecting box, gas components in the gas collecting box are detected through the sensor, and information of the gas components is sent to operation and maintenance personnel; the oil discharge assembly is arranged on the other side of the gas collection box and is opposite to the oil inlet pipe, the exhaust assembly is arranged on one side of the gas collection box, which is respectively connected with the oil inlet pipe and the side face where the oil discharge assembly is arranged, the oil discharge assembly and the exhaust assembly are respectively provided with an oil discharge valve and an exhaust valve, and oil and gas in the gas collection box are respectively discharged through the oil discharge valve and the exhaust valve. The invention can detect the gas components in real time, does not need to carry professional equipment, can quickly acquire the internal condition of the transformer, finds the problem in time before the transformer has the problem, and realizes the safe prejudgment and the quick overhaul and fault removal of the operation of the transformer.
Description
Technical Field
The invention relates to the field of transformer protection, in particular to a gas collecting box and a transformer.
Background
The transformer is used for converting voltage and current in a power supply network, is an important junction device and is not expensive. When the transformer breaks down or is abnormal, the abnormal condition can be judged quickly and correctly, and then timely and effective emergency treatment can be carried out, so that the loss of equipment and a power grid is reduced, and the personal safety is protected.
In a transformer substation, a large amount of insulating oil is used in a transformer to realize insulation and cooling. In case of a failure, the inside of the transformer is inevitably accompanied by physical or chemical changes of the insulating oil, gas. When such a change occurs, the change inside the transformer is difficult to observe, but gas accumulation inside the buchholz relay is one of the most common external manifestations.
However, the buchholz relay does not have the function of detection, and cannot analyze the gas components formed in the transformer, so that the operation and maintenance personnel often need to carry professional equipment to detect the gas in the transformer, and the operation is inconvenient, complicated, and the time for fault treatment is delayed, so that the optimal time for fault treatment is easily missed. In addition, operation and maintenance personnel cannot monitor and detect the internal condition of the transformer constantly, problems are difficult to find out in time before the transformer fails, and safe prejudgment and rapid overhaul and troubleshooting on the operation of the transformer cannot be realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a gas collection box and a transformer, wherein an oil-gas mixture in a gas relay is collected through the gas collection box, and a liquid level and an air space in the gas collection box are ensured by utilizing an exhaust assembly and an oil discharge assembly, so that a sensor can detect gas components in real time, professional equipment is not required to be carried, the condition in the transformer can be quickly obtained, problems can be timely found before the transformer has problems, and the safe prejudgment and the quick overhaul and troubleshooting on the operation of the transformer are realized.
In order to solve the above problems, the present invention adopts a technical solution as follows: the utility model provides a gas collection box, gas collection box sets up and is connected with buchholz relay's gas vent on the transformer, gas collection box includes: the device comprises an oil inlet pipe, a gas collecting box, a sensor, an exhaust assembly and an oil discharge assembly;
the oil inlet pipe is arranged on one side of the gas collecting box, and the oil-gas mixture output by the exhaust port of the gas relay is input into the gas collecting box through the oil inlet pipe;
the sensor and the oil inlet pipe are arranged on the same side of the gas collection box, gas components in the gas collection box are detected through the sensor, and information of the gas components is sent to operation and maintenance personnel;
the oil discharge assembly is arranged on the other side of the gas collection box and is opposite to the oil inlet pipe, the exhaust assembly is arranged on one side of the gas collection box, which is respectively connected with the side surfaces of the oil inlet pipe and the oil discharge assembly, the oil discharge assembly and the exhaust assembly are respectively provided with an oil discharge valve and an exhaust valve, and oil and gas in the gas collection box are respectively discharged through the oil discharge valve and the exhaust valve.
Furthermore, the gas collection box is also provided with a peeping window, the peeping window is embedded into the side face of the gas collection box, and the liquid level in the gas collection box is checked through the peeping window.
Further, the gas collection box further comprises a liquid level meter, the liquid level meter and the oil inlet pipe are arranged on the same side of the gas collection box, and the liquid level inside the gas collection box is detected through the liquid level meter.
Further, the gas collection box still includes the control panel, the control panel sets up the gas collection box side, with the exhaust subassembly is relative, and respectively with level gauge, exhaust subassembly, oil extraction subassembly are connected, the control panel passes through the level gauge acquires the inside liquid level of gas collection box, and according to liquid level control exhaust subassembly, oil extraction subassembly discharge gas, liquid in the gas collection box.
Further, the sensor comprises an acetylene gas sensor and an oxygen sensor.
Further, the exhaust valve comprises an electromagnetic exhaust valve and a manual exhaust valve, and the oil drain valve comprises an electromagnetic oil drain valve and a manual oil drain valve.
Further, exhaust subassembly still includes manual oil extraction interface, electromagnetism oil extraction interface and manual exhaust interface, electromagnetism exhaust interface, manual oil extraction interface, electromagnetism oil extraction interface respectively with manual oil drain valve, electromagnetism oil drain valve are connected, manual exhaust interface, electromagnetism exhaust interface respectively with manual discharge valve, electromagnetism discharge valve are connected.
Furthermore, the gas collection box also comprises a pressure gauge joint, one side of the pressure gauge joint is connected with the oil inlet pipe, the other side of the pressure gauge joint is connected with the gas collection box, and the oil inlet pipe inputs an oil-gas mixture into the gas collection box through the pressure gauge joint.
Furthermore, the gas collection box is provided with into oil pipe one side with the gas collection box passes through sealing washer sealing connection.
Based on the same inventive concept, the invention also provides a transformer, which comprises a main body, a gas relay and a gas collecting box, wherein the gas relay is respectively connected with the main body and the gas collecting box;
the main part is used for converting alternating voltage, the gas relay is used for protecting the main part, and the gas collection box comprises the gas collection box.
Compared with the prior art, the invention has the beneficial effects that: collect the inside oil-gas mixture of buchholz relay through the gas collection box, utilize exhaust subassembly and oil extraction subassembly to ensure inside liquid level and the air space of gas collection box to make the sensor can real-time detection gas composition, need not to carry professional equipment, can acquire the inside situation of transformer fast, in time discover the problem before the transformer goes wrong, realized the safe prejudgement and the quick maintenance troubleshooting to the transformer operation.
Drawings
FIG. 1 is a structural diagram of a gas collecting box according to an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the gas collection box of FIG. 1;
fig. 3 is a structural diagram of an embodiment of the transformer of the present invention.
In the figure: 11. a gas collection box; 12. an oil inlet pipe; 13. a sensor; 14. an exhaust assembly; 15. an oil discharge assembly; 16. a liquid level meter; 17. a peep window; 18. a control panel; 141. an electromagnetic exhaust valve; 142. a manual exhaust valve; 151. an electromagnetic oil drain valve; 152. and a manual oil drain valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Referring to fig. 1-2, fig. 1 is a structural diagram of a gas collecting box according to an embodiment of the present invention; fig. 2 is a front view of an embodiment of the gas collecting box in fig. 1. The gas collecting box of the invention is explained in detail with reference to the attached figures 1-2.
In this embodiment, gas collection box sets up and is connected with buchholz relay's gas vent on the transformer, and gas collection box includes: the device comprises an oil inlet pipe 12, a gas collecting box 11, a sensor 13, an exhaust assembly 14 and an oil discharge assembly 15; the oil inlet pipe 12 is arranged at one side of the gas collecting box 11, and the oil-gas mixture output from the exhaust port of the gas relay is input into the gas collecting box 11 through the oil inlet pipe 12; the sensor 13 and the oil inlet pipe 12 are arranged on the same side of the gas collecting box 11, gas components in the gas collecting box 11 are detected through the sensor 13, and information of the gas components is sent to operation and maintenance personnel; the oil discharge assembly 15 is arranged on the other side of the gas collection box 11 and is opposite to the oil inlet pipe 12, the exhaust assembly 14 is arranged on one side of the gas collection box 11, which is respectively connected with the oil inlet pipe 12 and the side face where the oil discharge assembly 15 is located, the oil discharge assembly 15 and the exhaust assembly 14 are respectively provided with an oil discharge valve and an exhaust valve, and oil and gas in the gas collection box 11 are respectively discharged through the oil discharge valve and the exhaust valve.
In a specific embodiment, the shape of the gas collecting box 11 is a cuboid, and in other embodiments, the shape of the gas collecting box 11 may also be a cube, a column, a prism, or other regular or irregular shapes, and only the oil-gas mixture output by the gas relay needs to be stored through the gas collecting box 11, and oil-gas separation can be achieved, which is not limited herein.
In this embodiment, the gas collecting box 11 is a sealed box, the upper part collects gas, the lower part collects oil, the oil inlet pipe 12 and the sensor 13 are arranged on the upper part of the gas collecting box 11.
In this embodiment, the oil inlet pipe 12 is a copper pipe, one end of which is connected to the exhaust port of the buchholz relay, and the other end of which inputs the oil-gas mixture into the gas collecting box 11. The gas-oil mixture can be discharged together in the gas relay exhaust process and enters the gas collecting box 11, the gas and the oil are separated, and the gas is collected by the gas collecting box and is convenient for analyzing the gas components.
In this embodiment, the gas collecting box 11 is further provided with an observation window 17, the observation window 17 is embedded into the side surface of the gas collecting box 11, and the liquid level inside the gas collecting box 11 is checked through the observation window 17. Wherein, the middle part of peep window 17 is transparent, realizes the visualization of the inside liquid level of gas collection box 11, and the outside is connected through spiro union, welding, joint and other modes with gas collection box 11, only need to make the junction of peep window 17 and gas collection box 11 sealed can, do not restrict here.
In the present embodiment, the gas collecting box further includes a liquid level meter 16, the liquid level meter 16 and the oil inlet pipe 12 are disposed on the same side of the gas collecting box 11, and the liquid level inside the gas collecting box 11 is detected by the liquid level meter 16.
In this embodiment, gas collection box still includes control panel 18, and control panel 18 sets up in gas collection box 11 side, and is relative with exhaust subassembly 14, and respectively with level gauge 16, exhaust subassembly 14, the oil extraction subassembly 15 is connected, and control panel 18 acquires the inside liquid level of gas collection box 11 through level gauge 16, and according to liquid level control exhaust subassembly 14, the interior gas of oil extraction subassembly 15 discharge gas collection box 11, liquid so that gas collection box 11 is inside to have the space that can detect gas composition.
In the present embodiment, the sensor 13 includes an acetylene gas sensor and an oxygen sensor.
In this embodiment, the gas composition information detected by the sensor 13 may be directly sent to a management and control center of an operation and maintenance staff through a wired manner. The gas composition information can also be sent to the terminal or the control center of the operation and maintenance personnel through wireless transmission modes such as WiFi, Bluetooth, nb-iot and the like, and the detected gas composition information can also be sent to the control panel 18 and sent to the terminal or the control center of the operation and maintenance personnel through the control panel 18.
In other embodiments, the control board 18 may also receive a control command input by an operation and maintenance person, and control the operation of the oil discharge assembly 15 or the air discharge assembly 14 according to the control command.
In this embodiment, the control board 18 may be a single chip, a DSP chip, an SOC, a CPU, or other intelligent control chips, or may be a control circuit capable of controlling the operation of the air discharging assembly 14 or the oil discharging assembly 15 according to information transmitted by the liquid level meter 16.
In the present embodiment, the exhaust valves include an electromagnetic exhaust valve 141 and a manual exhaust valve 142, and the oil drain valves include an electromagnetic oil drain valve 151 and a manual oil drain valve 152.
In this embodiment, the exhaust assembly 14 further includes a manual oil drain port, an electromagnetic oil drain port, and a manual exhaust port and an electromagnetic exhaust port, where the manual oil drain port and the electromagnetic oil drain port are respectively connected to the manual oil drain valve 152 and the electromagnetic oil drain valve 151, and the manual exhaust port and the electromagnetic exhaust port are respectively connected to the manual exhaust valve 142 and the electromagnetic exhaust valve 141.
In this embodiment, the electromagnetic exhaust valve 141 and the electromagnetic oil drain valve 151 are respectively connected to the control board 18, and the control board 18 controls the operation of the exhaust assembly 14 and the oil drain assembly 15 by controlling the electromagnetic exhaust valve 141 and the electromagnetic oil drain valve 151.
In the present embodiment, in order to prevent the malfunction of the solenoid exhaust valve 141 and the solenoid drain valve 151, the operation is disabled. The electromagnetic exhaust valve 141 and the electromagnetic oil drain valve 151 are respectively connected with pipelines where the manual exhaust valve 142 and the manual oil drain valve 152 are located, and the exhaust and oil drain functions of the electromagnetic exhaust interface and the electromagnetic oil drain interface are further controlled through the manual exhaust valve 142 and the manual oil drain valve 152 so as to prevent air leakage or oil leakage when the electromagnetic exhaust valve 141 and the electromagnetic oil drain valve 151 are in failure.
In this embodiment, the gas collecting box further includes a pressure gauge joint, one side of the pressure gauge joint is connected to the oil inlet pipe 12, the other side of the pressure gauge joint is connected to the gas collecting box 11, and the oil inlet pipe 12 inputs the oil-gas mixture into the gas collecting box 11 through the pressure gauge joint. The pressure gauge joint is connected with the pressure gauge, and the pressure inside the gas relay and the transformer is detected through the connection mode, so that the gas relay and the transformer are prevented from being broken down.
In this embodiment, the side of the gas collecting box 11 where the oil inlet pipe 12 is disposed is connected to the gas collecting box 11 through a sealing ring in a sealing manner, in other embodiments, the side where the oil inlet pipe 12 is disposed may also be connected to the gas collecting box 11 through welding, integral molding, and the like, and only the gas collecting box 11 needs to be kept in a sealing state, which is not limited herein.
In this embodiment, the sensor 13 is disposed on the top of the gas collecting box 11 on the side where the oil inlet pipe 12 is disposed, and the lower portion of the sensor 13 keeps a certain distance from the liquid level surface when the box body is in a full oil state, so that the liquid level of the sensor 13 cannot contact the sensor 13 even in a fault state of the exhaust assembly 14, the oil discharge assembly 15 or the liquid level meter 16, and the sensor 13 is protected.
Has the advantages that: according to the gas collection box, the gas-oil mixture in the gas relay is collected through the gas collection box, and the liquid level and the air space in the gas collection box are ensured by using the exhaust assembly and the oil discharge assembly, so that the gas components can be detected by the sensor in real time, professional equipment does not need to be carried, the condition in the transformer can be rapidly acquired, the problem can be timely found before the transformer has a problem, and the safe prejudgment and the rapid overhaul and fault removal of the operation of the transformer are realized.
Based on the same inventive concept, the present invention further provides a transformer, please refer to fig. 3, fig. 3 is a structural diagram of an embodiment of the transformer of the present invention, and the transformer of the present invention is specifically described with reference to fig. 3.
In this embodiment, the transformer includes a main body, a buchholz relay, and a buchholz collecting box, wherein the buchholz relay is respectively connected with the main body and the buchholz collecting box; the main part is used for converting alternating voltage, and the gas relay is used for protecting the main part, and the gas collection box includes the gas collection box as described in the above embodiments.
Has the advantages that: according to the transformer, the gas-oil mixture in the gas relay is collected through the gas collection box, and the liquid level and the air space in the gas collection box are ensured by using the exhaust assembly and the oil discharge assembly, so that the gas components can be detected by the sensor in real time, professional equipment does not need to be carried, the condition in the transformer can be rapidly acquired, the problem can be timely found before the transformer has a problem, and the safe prejudgment and the rapid overhaul and fault removal of the operation of the transformer are realized.
In the embodiments provided in the present invention, it should be understood that the disclosed devices, modules and circuits may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the structural components of the modules may be divided into only one logical function, and other divisions may be made in practice, for example, a plurality of modules or modules may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, devices or indirect coupling or communication connection, and may be in an electrical, mechanical or other form.
The components described as separate parts may or may not be physically separate, and the components shown may or may not be physically separate, may be located in one place, or may be distributed in a plurality of places. Some or all of them can be selected according to actual needs to achieve the purpose of the embodiment.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a gas collection box, its characterized in that, gas collection box sets up and is connected with buchholz relay's gas vent on the transformer, gas collection box includes: the device comprises an oil inlet pipe, a gas collecting box, a sensor, an exhaust assembly and an oil discharge assembly;
the oil inlet pipe is arranged on one side of the gas collecting box, and the oil-gas mixture output by the exhaust port of the gas relay is input into the gas collecting box through the oil inlet pipe;
the sensor and the oil inlet pipe are arranged on the same side of the gas collection box, gas components in the gas collection box are detected through the sensor, and information of the gas components is sent to operation and maintenance personnel;
the oil discharge assembly is arranged on the other side of the gas collection box and is opposite to the oil inlet pipe, the exhaust assembly is arranged on one side of the gas collection box, which is respectively connected with the side surfaces of the oil inlet pipe and the oil discharge assembly, the oil discharge assembly and the exhaust assembly are respectively provided with an oil discharge valve and an exhaust valve, and oil and gas in the gas collection box are respectively discharged through the oil discharge valve and the exhaust valve.
2. The gas collection box of claim 1, wherein a sight glass is further provided on the collection box, the sight glass is embedded into a side surface of the collection box, and a liquid level inside the collection box is checked through the sight glass.
3. The gas collection box of claim 1, further comprising a liquid level meter disposed on the same side of the collection box as the oil inlet tube, wherein the liquid level inside the collection box is detected by the liquid level meter.
4. The gas collecting box according to claim 3, further comprising a control panel disposed at a side of the collecting box, opposite to the exhaust assembly, and respectively connected to the level gauge, the exhaust assembly, and the oil discharge assembly, wherein the control panel obtains a liquid level inside the collecting box through the level gauge, and controls the exhaust assembly and the oil discharge assembly to discharge gas and liquid in the collecting box according to the liquid level.
5. The gas collection box of claim 1, wherein the sensor comprises an acetylene gas sensor, an oxygen sensor.
6. The gas collection box of claim 1, wherein the gas discharge valve comprises an electromagnetic gas discharge valve and a manual gas discharge valve, and the oil discharge valve comprises an electromagnetic oil discharge valve and a manual oil discharge valve.
7. The gas collection box of claim 6, wherein the exhaust assembly further comprises a manual oil discharge port, an electromagnetic oil discharge port, and a manual exhaust port and an electromagnetic exhaust port, wherein the manual oil discharge port and the electromagnetic oil discharge port are respectively connected to the manual oil discharge valve and the electromagnetic oil discharge valve, and the manual exhaust port and the electromagnetic exhaust port are respectively connected to the manual exhaust valve and the electromagnetic exhaust valve.
8. The gas collection box of claim 1, further comprising a pressure gauge joint, wherein one side of the pressure gauge joint is connected to the oil inlet pipe, the other side of the pressure gauge joint is connected to the gas collection box, and the oil inlet pipe inputs an oil-gas mixture into the gas collection box through the pressure gauge joint.
9. The gas collection box of claim 1, wherein the side of the gas collection box provided with the oil inlet pipe is hermetically connected with the gas collection box through a sealing ring.
10. A transformer is characterized by comprising a main body, a gas relay and a gas collecting box, wherein the gas relay is respectively connected with the main body and the gas collecting box;
the main body is used for converting alternating voltage, the gas relay is used for protecting the main body, and the gas collecting box comprises the gas collecting box as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436334.9A CN111595637A (en) | 2020-05-21 | 2020-05-21 | Gas collection box and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436334.9A CN111595637A (en) | 2020-05-21 | 2020-05-21 | Gas collection box and transformer |
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| Publication Number | Publication Date |
|---|---|
| CN111595637A true CN111595637A (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436334.9A Pending CN111595637A (en) | 2020-05-21 | 2020-05-21 | Gas collection box and transformer |
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| CN (1) | CN111595637A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965310A (en) * | 2020-09-14 | 2020-11-20 | 南京力通达电气技术有限公司 | Intelligent gas collection box of transformer gas relay and control method thereof |
| CN112350273A (en) * | 2020-10-29 | 2021-02-09 | 国电南瑞科技股份有限公司 | Digital light gas protection method and device for transformer |
| CN114530826A (en) * | 2021-12-28 | 2022-05-24 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on organic gas concentration characteristics |
-
2020
- 2020-05-21 CN CN202010436334.9A patent/CN111595637A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965310A (en) * | 2020-09-14 | 2020-11-20 | 南京力通达电气技术有限公司 | Intelligent gas collection box of transformer gas relay and control method thereof |
| CN112350273A (en) * | 2020-10-29 | 2021-02-09 | 国电南瑞科技股份有限公司 | Digital light gas protection method and device for transformer |
| CN112350273B (en) * | 2020-10-29 | 2023-06-20 | 国电南瑞科技股份有限公司 | Digital light gas protection method and device for transformer |
| CN114530826A (en) * | 2021-12-28 | 2022-05-24 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on organic gas concentration characteristics |
| CN114530826B (en) * | 2021-12-28 | 2024-02-13 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on concentration characteristics of organic gas |
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