CN219998001U - Protection system for oil immersed transformer - Google Patents
Protection system for oil immersed transformer Download PDFInfo
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- CN219998001U CN219998001U CN202321483826.9U CN202321483826U CN219998001U CN 219998001 U CN219998001 U CN 219998001U CN 202321483826 U CN202321483826 U CN 202321483826U CN 219998001 U CN219998001 U CN 219998001U
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- immersed transformer
- oil immersed
- protection
- protection system
- fire fighting
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- 238000001816 cooling Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 5
- 230000009172 bursting Effects 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
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- 208000010392 Bone Fractures Diseases 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model discloses a protection system for an oil immersed transformer, which relates to the technical field of oil immersed transformer protection and comprises an energy supply device, wherein the output end of the energy supply device is electrically connected with an air cooling system, a water cooling system and a weak current protection system; the air outlet of the air cooling system faces the oil immersed transformer, the water cooling system comprises a protection piece arranged on one side of the oil immersed transformer, a spray pipeline is arranged on one side of the protection piece, which is away from the oil immersed transformer, a spray head of the spray pipeline faces a fire fighting riser, and a fire fighting branch pipe of the fire fighting riser passes through the protection piece and faces the oil immersed transformer; the utility model can avoid the problem of partial failure or integral failure of the fire-fighting system caused by pipeline bursting, and improve the reliability of the fire-fighting system.
Description
Technical Field
The utility model relates to the technical field of protection of oil immersed transformers, in particular to a protection system for an oil immersed transformer.
Background
In recent years, with the rapid development of thermal power generation and paper industry in China, matched large-scale transformer stations are more and more, and the scale is also larger and larger. Transformers are one of the most expensive and important devices of a substation, and function as a "heart" in a power system, and once a fault occurs, it may cause a breakdown of the power grid in the whole plant, resulting in an unpredictable economic loss.
In a power system, a large-capacity transformer is often an oil immersed power transformer, the inside of the oil immersed power transformer is filled with several tens of hundred tons of insulating oil (the fire hazard is class iii, and domestic paper used at ordinary times can be classified as class iii), when the transformer is short-circuited or continuously failed, combustible gases such as methane, ethane, hydrogen and the like are decomposed, explosive gases are formed when the concentration reaches a certain level, and an explosive fire occurs when the temperature reaches a high temperature.
We find that the risk of partial or total failure of the fire extinguishing system caused by pipeline bursting, branch pipe falling and the like due to the high temperature at the moment of fire explosion is not high in reliability. The utility model can well solve the problem, and can prevent the problem in advance from the source, ensure the normal operation of the automatic fire extinguishing facility in case of fire, ensure the safety of personnel, equipment and power grid, and minimize the casualty loss.
Based on this, it is necessary to propose a protection system for an oil-immersed transformer to solve or at least alleviate the above drawbacks.
Disclosure of Invention
The utility model mainly aims to provide a protection system for an oil immersed transformer, which aims to solve the technical problems of partial failure or integral failure of a fire protection system caused by heating and fire disaster caused by explosion due to the operation of the oil immersed transformer in the working process of the existing power system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the protection system for the oil immersed transformer comprises an energy supply device, wherein the output end of the energy supply device is electrically connected with an air cooling system, a water cooling system and a weak current protection system; the air outlet of air cooling system is towards oily transformer, the water cooling system is including setting up in the protector of oily transformer wherein one side, the protector deviates from one side of oily transformer is provided with the spraying pipeline, the atomising head of spraying pipeline is towards fire control riser, the fire control branch pipe of fire control riser passes this protector towards oily transformer.
Further, the protection piece comprises a back plate and the fire-fighting vertical pipe is locked on the end face of the back plate, which is away from the oil immersed transformer, through the clamp, a first side plate and a second side plate are respectively arranged on two sides of the back plate, the first side plate and the second side plate jointly enclose into a protection shell with a U-shaped groove, and the fire-fighting vertical pipe and the spraying pipeline are all accommodated in the U-shaped groove of the protection shell.
Further, the energy supply device comprises a generator, wherein the generator is electrically connected with an inverter, and the inverter is respectively and electrically connected with the air cooling system, the water cooling system and the weak current protection system.
Further, the generator is a wind-solar complementary generator.
Further, a storage battery is further arranged on the inverter.
Further, the spray pipeline is connected with a booster water pump.
Further, the system also comprises a sensor electrically connected with the inverter, wherein the sensor is electrically connected with a PLC controller, and the PLC controller is electrically connected with the water cooling system.
Further, the air cooling system comprises an air supply device, the air outlet end of the air supply device faces the oil immersed transformer, the air supply device is connected with a liquid storage tank through a pipeline, and cooling liquid is contained in the liquid storage tank.
Further, the booster pump pipeline is connected to the liquid storage tank.
The utility model has the following beneficial effects:
compared with the existing power system, the technical scheme of the utility model reduces the temperature of the oil immersed transformer and the fire fighting riser by additionally arranging the air cooling system and the water cooling system, so that on one hand, the fire probability caused by the oil immersed transformer can be reduced from the source, on the other hand, the temperature of the surface of the fire fighting pipe can be reduced when a fire disaster occurs, the problem that the pipeline breaks down to cause partial failure or integral failure of the fire fighting system is avoided, and the reliability of the fire fighting system is improved;
secondly, through setting up the fire control riser and the guard piece deviates from the terminal surface of oily transformer, avoid the explosion that oily transformer arouses to fire control riser's impact, further strengthen fire control system's reliability.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a first schematic diagram of an organization architecture of the present utility model;
FIG. 2 is a second schematic diagram of an organization architecture of the present utility model;
fig. 3 is a schematic view of the assembly of the guard and fire riser of the present utility model.
Legend description: 1. an energy supply device; 10. a generator; 11. a storage battery; 12. an inverter; 2. an air cooling system; 3. a water cooling system; 30. a booster water pump; 31. a spray conduit; 100. a fire riser; 200. a guard; 2000. a back plate; 2001. a first side plate; 2002. and a second side plate.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
A protection system for an oil immersed transformer as shown in fig. 1-2, comprising:
an energy supply device 1 for supplying energy to the whole protection system;
the air cooling system 2 is electrically connected with the energy supply device 1 and is used for cooling the oil immersed transformer in an air-cooling way; in this embodiment, the air cooling system 2 includes a liquid storage tank for storing cooling liquid (water), and the liquid storage tank is connected with an air supply device through a pipeline, and in order to improve the cooling effect of air cooling, the air supply device adopts an industrial mist fan, so that the cooling liquid can be atomized to reduce the temperature of the surface of the oil immersed transformer;
the water cooling system 3 is electrically connected with the energy supply device 1 and is used for carrying out surface cooling treatment on the fire fighting riser 100, so that the fire fighting riser 100 is prevented from bursting at high temperature, and the problem of partial failure or integral failure of the fire fighting system of the oil immersed transformer is solved; the water cooling system 3 comprises a booster water pump 30, wherein a spray pipeline 31 for cooling the surface of the fire-fighting vertical pipe 100 is connected to the booster water pump 30 in a pipeline manner, and the booster water pump 30 is connected to the liquid storage tank in a pipeline manner; specifically, a plurality of atomizing nozzles 310 are arranged on the atomizing pipeline 31 in an array manner, when the atomizing pipeline 31 works, the pressurized water pump 30 conveys the cooling liquid in the liquid storage tank to the atomizing pipeline 31, the atomizing nozzles 310 atomize the cooling liquid into water mist and perform cooling treatment towards the surface of the fire fighting riser 100, and it is understood that the whole environment is in a fire scene and the temperature in the environment can reach more than 400 ℃ in a short time when the atomizing nozzles 310 work, so that the material of the atomizing nozzles 310 is required to be prepared by adopting a high-temperature resistant material;
the weak current alarm system 4 is electrically connected with the energy supply device 1, and when the supply of the energy supply device 1 is abnormal, the weak current alarm system 4 immediately alarms, so that the repair is convenient for manual work.
In this embodiment, the energy supply device 1 includes a generator 10, the generator 10 adopts a wind-solar complementary generator, and the generator 10 is electrically connected with an inverter 12, in order to improve the practicality of the device, a storage battery 11 is further disposed on the inverter 12, the storage battery 11 is electrically connected with the generator 10, specifically, by using a solar photovoltaic array, two forms of wind power generation store the generated electric energy (alternating current to direct current) into the storage battery 11, when a user needs to use electricity, the inverter 12 outputs the electric energy stored in the storage battery 11 to the user through a circuit (the inverter 12 converts the direct current to alternating current at this time), and because of strong complementarity between solar energy and wind energy, the wind-solar complementary power generation system compensates for intermittent unbalance and instability of wind energy and solar energy independent power generation systems on resources, and can perform reasonable configuration of system capacity according to the electricity load condition and resource condition of the user, thereby not only ensuring the reliability of power supply, but also reducing the cost of the power generation system, and not being limited by regions, but also being environment-friendly and energy-saving.
In addition, in the embodiment, the oil immersed transformer and the fire fighting riser 100 are cooled respectively by two main flow cooling modes of air cooling and water cooling, so that the problems of fire disaster, explosion and the like caused by the working temperature rise of the oil immersed transformer are avoided; on the other hand, the reliability of the fire-fighting pipeline in fire is increased.
Further, in order to avoid the problem that the fire fighting system is partially or entirely failed due to explosion caused by the temperature rise of the oil immersed transformer, a protection piece 200 is disposed at one side of the oil immersed transformer, referring to fig. 3, the direction indicated by the arrow is the installation position of the oil immersed transformer, for convenience of understanding, the protection piece 200 is disposed at the front side of the oil immersed transformer, and for understanding, in order to prevent the problem that the fire fighting pipeline is dropped or even broken due to the impact generated by explosion, in this embodiment, the fire fighting riser 100 is mainly disposed at the front end face of the protection piece 200, that is, the end face facing away from the oil immersed transformer through a clamp, by taking the fire fighting riser 100 as an example;
more specifically, referring to fig. 3, the protection member 200 includes a back plate 2000, the back plate 2000 is vertically disposed on the front side of the oil immersed transformer according to the manner in which the fire fighting riser 100 is disposed, and two sides of the back plate 2000 are respectively fixed with a first side plate 2001 and a second side plate 2002, and the two sides of the back plate 2000 are enclosed together to form a strip entity with a U-shaped groove, in this embodiment, the first side plate 2001 and/or the second side plate 2002 are fixed with a spray pipe 31 on a plate body thereof through a clamp, the fire fighting riser 100 is disposed on the back plate 2000 through a clamp, and a plurality of fire fighting branches are disposed on a pipe body of the fire fighting riser 100 in an array, the fire fighting branches pass through the back plate 2000 and are provided with water spray nozzles, and the spray pipe 31 and the fire fighting riser 100 are both accommodated in the U-shaped groove, and the notch of the U-shaped groove faces away from the transformer, since the back transformer side is not immersed with oil, the front side is also convenient for the explosion attack, and the front side is opened, and meanwhile, the fire fighting riser is prevented from being broken due to the fire fighting riser is connected with the fire fighting riser 100 by the fire fighting riser, and the fire fighting riser is prevented from being broken by the fire riser 100;
second, the edges of the first side plate 2001 and the second side plate 2002 are rounded or wrapped with a flexible layer, so as to avoid the edge of the plate from causing fracture injury to the personnel.
In another embodiment, the inverter 12 is electrically connected with a sensor for detecting the temperature of the surface of the oil immersed transformer, that is, the sensor is disposed on the surface of the inverter 12, and the sensor is ADT75 or DS75, and the sensor is electrically connected with a PLC controller, and the PLC controller is electrically connected with the water cooling system 2, and monitors the temperature of the surface of the oil immersed transformer through the sensor.
The working principle of the utility model is as follows: in the daily working process, wind energy and/or solar energy is converted into electric energy by the wind-solar complementary generator and is stored in the storage battery 11, the electric energy in the storage battery 11 is called when the inverter 12 works, at the moment, when the sensor detects that the surface temperature of the oil immersed transformer is higher than a safety value, the PLC controller can send a temperature adjustment instruction, the booster water pump 30 in the water cooling system 2 is started to convey cooling liquid in the liquid storage tank to the industrial cold fog fan to generate cold fog, the purpose of efficiently and stably cooling the surface of the oil immersed transformer is achieved, and meanwhile, the inverter 12 is electrically connected with the weak current alarm system 4, so that the electricity utilization safety of the whole protection system is ensured;
but when the fire disaster happens, the PLC controller can send out an instruction, and the booster water pump 30 in the water cooling system 2 is started to convey the cooling liquid in the liquid storage tank to the spraying pipeline 31, so that the surface of the fire fighting main pipe 100 is efficiently and stably cooled, and the problem that the fire fighting main pipe 100 is broken down due to the high temperature influence of the fire disaster, and the whole fire fighting system is partially or wholly invalid is avoided.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The protection system for the oil immersed transformer comprises an energy supply device (1), wherein the output end of the energy supply device (1) is electrically connected with an air cooling system (2), a water cooling system (3) and a weak current protection system (4), and an air outlet of the air cooling system (2) faces the oil immersed transformer; the water cooling system (3) comprises a protection piece (200) arranged on one side of the oil immersed transformer, a spraying pipeline (31) is arranged on one side, deviating from the oil immersed transformer, of the protection piece (200), a spraying head of the spraying pipeline (31) faces a fire fighting riser (100), and a fire fighting branch pipe of the fire fighting riser (100) passes through the protection piece (200) and faces the oil immersed transformer.
2. The protection system for the oil immersed transformer according to claim 1, wherein the protection piece (200) comprises a back plate (2000), the fire fighting riser (100) is locked on the back plate (2000) through a clamp and is away from the end face of the oil immersed transformer, a first side plate (2001) and a second side plate (2002) are respectively arranged on two sides of the back plate (2000), the first side plate (2001) and the second side plate (2002) are jointly enclosed to form a protection shell with a U-shaped groove, and the fire fighting riser (100) and the spraying pipeline (31) are contained in the U-shaped groove of the protection shell.
3. Protection system for oil-immersed transformers according to claim 2, characterized in that the energy supply means (1) comprise a generator (10) electrically connected with an inverter (12), the inverter (12) being electrically connected with the air-cooled system (2), the water-cooled system (3) and the weak-current protection system (4), respectively.
4. A protection system for an oil immersed transformer according to claim 3, characterized in that the generator (10) is a wind-solar complementary generator.
5. Protection system for oil-immersed transformers according to claim 4, characterized in that the inverter (12) is further provided with a battery (11).
6. A protection system for an oil immersed transformer according to any one of claims 1-5, characterized in that the spray pipe (31) is connected to a booster pump (30).
7. The protection system for an oil immersed transformer according to claim 6, further comprising a sensor electrically connected to the inverter (12), the sensor being electrically connected to a PLC controller, the PLC controller being electrically connected to the water cooling system (3).
8. The protection system for an oil immersed transformer according to claim 7, wherein the air cooling system (2) comprises an air supply device, an air outlet end of the air supply device faces the oil immersed transformer, and a liquid storage tank is connected to an air supply device pipeline, and cooling liquid is contained in the liquid storage tank.
9. A protection system for an oil immersed transformer according to claim 8, characterized in that the booster pump (30) is piped to the reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321483826.9U CN219998001U (en) | 2023-06-12 | 2023-06-12 | Protection system for oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321483826.9U CN219998001U (en) | 2023-06-12 | 2023-06-12 | Protection system for oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219998001U true CN219998001U (en) | 2023-11-10 |
Family
ID=88610625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321483826.9U Active CN219998001U (en) | 2023-06-12 | 2023-06-12 | Protection system for oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219998001U (en) |
-
2023
- 2023-06-12 CN CN202321483826.9U patent/CN219998001U/en active Active
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