CN112908650A - Transformer capable of reducing fire risk degree and using method thereof - Google Patents
Transformer capable of reducing fire risk degree and using method thereof Download PDFInfo
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- CN112908650A CN112908650A CN202110282393.XA CN202110282393A CN112908650A CN 112908650 A CN112908650 A CN 112908650A CN 202110282393 A CN202110282393 A CN 202110282393A CN 112908650 A CN112908650 A CN 112908650A
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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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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- 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
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a transformer capable of reducing fire risk degree and a using method thereof, the transformer comprises a foundation, an underground oil storage tank is arranged in the foundation, an oil immersed transformer is fixedly connected on the upper side end surface of the foundation, a transformer inner cavity is arranged in the oil immersed transformer, a transformer temperature detection mechanism is arranged in the transformer inner cavity, a carbon dioxide fire extinguishing driving mechanism positioned on the left side of the oil immersed transformer is arranged on the upper side end surface of the foundation, an insulating oil extraction and transfer mechanism is arranged on the lower side of the oil immersed transformer, the invention can reduce fuel in the transformer by transferring insulating oil in the transformer, simultaneously, a dry powder carbon dioxide composite fire extinguishing mechanism sprays dry powder carbon dioxide airflow in the transformer to carry out composite fire extinguishing, and the fuel in the transformer and the composite fire extinguishing are reduced to realize quick fire extinguishing, thereby reducing the fire, and reduces the damage level of the internal components of the transformer.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a transformer capable of reducing fire risk degree and a using method thereof.
Background
The oil-immersed transformer is one of important equipment in power supply and distribution systems of industrial and mining enterprises and civil buildings, as transformer oil has the characteristics of excellent performance and low price, most power transformers still use the transformer oil as an insulating and cooling medium, but the transformer oil adopted by the oil-immersed transformer has the possibility of burning, the existing oil-immersed transformer can only extinguish fire basically through fire fighters when burning and fire disasters occur, and because a large amount of transformer oil causes difficult fire extinguishment and can not quickly extinguish the fire, the fire can cause serious damage to internal components of the transformer.
Disclosure of Invention
The technical problem is as follows: when present oil-immersed transformer takes place to burn and conflagration, can only put out a fire through fire fighter basically, and because there is a large amount of transformer oil to lead to putting out a fire comparatively difficultly, can't put out a fire fast.
In order to solve the above problems, this embodiment designs a transformer with reduced fire risk degree, which includes a foundation, an underground oil storage tank is arranged in the foundation, an oil-immersed transformer is fixedly connected to an upper end surface of the foundation, a transformer inner cavity is arranged in the oil-immersed transformer, a transformer temperature detection mechanism is arranged in the transformer inner cavity, a carbon dioxide fire extinguishing driving mechanism positioned at the left side of the oil-immersed transformer is arranged on the upper end surface of the foundation, the carbon dioxide fire extinguishing driving mechanism is used for storing and utilizing liquid carbon dioxide as a power source of a fire extinguishing system, an insulating oil extraction and transfer mechanism is arranged at the lower side of the oil-immersed transformer, the insulating oil extraction and transfer mechanism conveys insulating oil in the transformer inner cavity to the underground oil storage tank for storage when a fire occurs or a fire occurs, so as to reduce the damage of the oil-immersed transformer, the transformer temperature detection mechanism detects the temperature inside the inner cavity of the transformer by utilizing metal deformation, the transformer temperature detection mechanism triggers the carbon dioxide fire extinguishing driving mechanism and the insulating oil extraction and transfer mechanism to work through air pressure, the phenomenon that a fire extinguishing system cannot normally work due to outage caused by fire is avoided, the dry powder carbon dioxide composite fire extinguishing mechanism is arranged on the upper side of the oil immersed transformer and conducts fire extinguishing treatment by spraying dry powder and carbon dioxide into the inner cavity of the transformer, the insulating oil extraction and transfer mechanism comprises a liquid carbon dioxide storage tank fixedly connected to the end face on the upper side of a foundation, a first valve body is arranged on the end face on the right side of the liquid carbon dioxide storage tank, a first valve body cavity communicated with the liquid carbon dioxide storage tank is arranged in the first valve body, and a first valve core is slidably connected to the inner wall on the left side of, the valve core I can seal a valve body cavity I and a liquid carbon dioxide storage tank communicating port, and a cylinder III is fixedly connected to the upper side end face of the liquid carbon dioxide storage tank.
Preferably, the underground oil storage tank is filled with compressed carbon dioxide gas, the liquid carbon dioxide storage tank stores normal-temperature liquid carbon dioxide, and the fire extinguishing system is composed of the transformer temperature detection mechanism, the carbon dioxide fire extinguishing driving mechanism, the insulating oil extraction and transfer mechanism and the dry powder carbon dioxide composite fire extinguishing mechanism.
Preferably, the transformer temperature detection mechanism comprises a transformer assembly arranged in the transformer inner cavity, a first air cylinder is fixedly connected to the upper side end face of the transformer inner cavity, a first air cavity communicated with the transformer inner cavity is arranged in the first air cylinder, a first piston is connected to the first air cavity in a sliding manner, a lifting rod is fixedly connected to the lower side end face of the piston, a thermal bimetallic strip is fixedly connected to the inner wall of the right side of the transformer inner cavity, the thermal bimetallic strip is fixedly connected to the lifting rod, and a fifth air pipe is connected between the first air cavity and the third air cavity in a communicating manner.
Preferably, a third air cavity communicated with the first valve cavity is arranged in the third air cylinder, a third piston is connected in the third air cavity in a sliding mode, a third piston rod is fixedly connected to the lower side end face of the third piston, the third piston rod is fixedly connected with the first valve core, a first impeller positioned on the right side of the liquid carbon dioxide storage tank is fixedly connected to the upper side end face of the foundation, and a first air delivery pipe is communicated and connected between the first impeller and the first valve cavity.
Preferably, the insulating oil extraction and transfer mechanism comprises an infusion tube connected between the inner cavity of the transformer and the underground oil storage tank in a communicating manner, the inner wall of the left side of the infusion tube is rotatably connected with a second rotating shaft extending rightwards to the outer surface of the end of the infusion tube, the second rotating shaft is fixedly connected with a second valve core positioned in the infusion tube, the second rotating shaft is fixedly connected with a gear positioned on the right side of the infusion tube, the right end face of the infusion tube is fixedly connected with a second air cylinder, the second air cylinder is internally provided with a second air cavity with a downward opening, the second air cavity and the fifth air pipe are connected with a sixth air pipe in a communicating manner, the second air cavity is internally and slidably connected with a second piston, the lower side end face of the second piston is fixedly connected with a downward rack, the rack is connected with, and a first rotating shaft extending into the liquid pump is arranged in the first impeller, and the first rotating shaft can drive the liquid pump to work.
Preferably, the second valve core can seal the infusion tube, and the rotary joint of the second rotating shaft and the infusion tube is in sealing connection.
Preferably, the dry powder carbon dioxide composite fire extinguishing mechanism comprises a storage box fixedly connected with the upper side end face of the oil immersed transformer, a storage cavity is arranged in the storage box, a mixing box fixedly connected with the lower side end face of the storage box is arranged in the mixing box, a mixing cavity communicated with the storage cavity is arranged in the mixing box, a second impeller is fixedly connected with the upper side end face of the underground oil storage box, a second air pipe is communicated and connected between the second impeller and the first impeller, a third air pipe is communicated and connected between the second impeller and the mixing cavity, a third rotating shaft extending upwards into the storage cavity is arranged in the second impeller, a first bevel gear arranged in the mixing cavity is fixedly connected with the third rotating shaft, a flat key on the third rotating shaft is connected with a bevel turntable arranged on the upper side of the first bevel gear, and a compression spring is connected between the bevel turntable and the first bevel gear, the last fixed connection of pivot three is located store the helical blade of intracavity, it is connected with the pivot four that extends right to rotate on the inner wall of hybrid chamber left side, the last fixed connection of pivot four with the cam of inclined plane carousel butt, the last fixed connection of pivot four with bevel gear two that bevel gear meshing is connected, fixedly connected with spray tube on the inner wall of transformer inner chamber upside, be equipped with five shower nozzles that open side down on the spray tube, the spray tube with communicate with each other between the hybrid chamber and be connected with gas-supply pipe four.
Preferably, a vacuum generator is arranged on the second gas pipe, a one-way pressure release valve is arranged on the upper side end face of the underground oil storage tank, a seventh gas pipe is communicated and connected between the one-way pressure release valve and the vacuum generator, and the storage cavity is used for storing dry powder.
A method for using a transformer with a reduced fire risk level comprises the following steps:
initial state: the first piston is positioned at the lower limit position, the second piston and the rack are positioned at the upper limit position, the second valve core seals the liquid conveying pipe, the third piston and the first valve core are positioned at the upper limit position, and the first valve core seals the first valve cavity and the first liquid carbon dioxide storage tank;
when the temperature in the inner cavity of the transformer is close to the flash point of the insulating oil, the thermal bimetallic strip deforms upwards to drive the lifting rod and the first piston to move upwards, airflow generated by the upward movement of the first piston is conveyed into the third air cavity through the fifth air conveying pipe and the sixth air conveying pipe to the second air cavity, the airflow drives the second piston and the rack to move downwards, the rack is connected with the gear through meshing, the gear drives the second rotating shaft and the second valve core to rotate, so that the inner cavity of the transformer is communicated with the underground oil storage tank, the insulating oil in the inner cavity of the transformer is conveyed into the underground oil storage tank through the liquid conveying pipe and the liquid pump to be stored, meanwhile, the third piston rod and the first valve core are driven by the airflow to move downwards, the normal-temperature and high-pressure carbon dioxide liquid in the liquid carbon dioxide storage tank is gasified quickly and conveyed into the mixing cavity through the first valve cavity, the first air conveying, the first impeller drives a liquid pump through a rotating shaft I, and the liquid pump operates to accelerate the conveying of the insulating oil in the inner cavity of the transformer to an underground oil storage tank for storage, so that the amount of the insulating oil in the inner cavity of the transformer is reduced, and the damage degree of the insulating oil combustion in the inner cavity of the transformer to transformer components is reduced;
compressed carbon dioxide gas is stored in the underground oil storage tank, so that the insulating oil flowing into the underground oil storage tank is prevented from burning, and as the oil level in the underground oil storage tank rises, redundant carbon dioxide gas can be conveyed into the second gas conveying pipe through the one-way pressure release valve and the vacuum generator and conveyed into the mixing cavity along with the gas flow in the second gas conveying pipe;
meanwhile, the air flow drives the impeller II to work, the impeller II drives the rotating shaft III to rotate, the rotating shaft III drives the spiral blade, the inclined surface rotary table and the bevel gear I to rotate, the spiral blade conveys the dry powder in the storage cavity into the mixing cavity, the bevel gear I drives the movable bevel gear II, the cam and the rotating shaft IV to rotate through meshing, the cam drives the inclined surface rotary table to vibrate up and down under the action of the compression spring, so that the inclined surface rotary table realizes rotary vibration, the inclined surface rotary table stirs the dry powder falling into the mixing cavity through the rotary vibration, the dry powder can be uniformly dispersed in the air flow, the carbon dioxide air flow in the mixing cavity carries the dry powder to be sprayed into the transformer cavity through the gas conveying pipe IV, the spray pipe and the spray nozzle, the temperature reduction and the fire extinguishing are carried out on the transformer cavity, and the air in the transformer cavity can be quickly discharged through a, thereby improving the fire extinguishing effect and realizing quick fire extinguishing.
The invention has the beneficial effects that: the transformer temperature detection mechanism of the invention detects the internal temperature of the transformer through the bimetallic strip, and triggers the carbon dioxide fire extinguishing driving mechanism and the insulating oil extraction and transfer mechanism to work through airflow, the insulating oil extraction and transfer mechanism can quickly convey insulating oil into the underground oil storage tank, the underground oil storage tank is filled with carbon dioxide gas to prevent the insulating oil from burning in the underground oil storage tank, and the insulating oil in the transformer can be transferred to reduce the fuel in the transformer, meanwhile, the dry powder carbon dioxide composite fire extinguishing mechanism sprays dry powder carbon dioxide airflow in the transformer to carry out composite fire extinguishing, and realizes quick fire extinguishing by reducing fuel in the transformer and carrying out composite fire extinguishing, therefore, the fire risk degree is reduced, the damage degree of the components in the transformer is reduced, electric drive is not needed in the fire extinguishing process, the situation that the transformer cannot work due to power failure caused by fire is avoided, and the reliability is high.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of an overall structure of a transformer with a reduced fire risk level according to the present invention;
FIG. 2 is an enlarged view of the structure at "A" in FIG. 1;
FIG. 3 is an enlarged view of the structure at "B" in FIG. 1;
FIG. 4 is an enlarged view of the structure at "C" of FIG. 1;
FIG. 5 is an enlarged view of the structure at "D" of FIG. 1;
fig. 6 is an enlarged view of the structure at "E" of fig. 5.
Detailed Description
The invention will now be described in detail with reference to fig. 1 to 6, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a transformer capable of reducing the fire risk degree, which comprises a foundation 11, wherein an underground oil storage tank 12 is arranged in the foundation 11, an oil-immersed transformer 20 is fixedly connected to the upper side end face of the foundation 11, a transformer inner cavity 22 is arranged in the oil-immersed transformer 20, a transformer temperature detection mechanism 101 is arranged in the transformer inner cavity 22, a carbon dioxide fire extinguishing driving mechanism 102 positioned on the left side of the oil-immersed transformer 20 is arranged on the upper side end face of the foundation 11, the carbon dioxide fire extinguishing driving mechanism 102 is used for storing and utilizing liquid carbon dioxide as a power source of a fire extinguishing system, an insulating oil extraction and transfer mechanism 103 is arranged on the lower side of the oil-immersed transformer 20, the insulating oil extraction and transfer mechanism 103 is used for conveying insulating oil in the transformer inner cavity 22 to the underground oil storage tank 12 for storage when a, thereby reducing the situation that the oil-immersed transformer 20 is damaged by fire, the transformer temperature detection mechanism 101 detects the temperature inside the transformer inner cavity 22 by metal deformation, the transformer temperature detection mechanism 101 triggers the carbon dioxide fire extinguishing driving mechanism 102 and the insulating oil extraction and transfer mechanism 103 to work through air pressure, so as to avoid the situation that the fire extinguishing system cannot normally operate due to power failure caused by fire, the upper side of the oil-immersed transformer 20 is provided with the dry powder carbon dioxide composite fire extinguishing mechanism 104, the dry powder carbon dioxide composite fire extinguishing mechanism 104 carries out fire extinguishing treatment by spraying dry powder and carbon dioxide into the transformer inner cavity 22, the insulating oil extraction and transfer mechanism 103 comprises a liquid carbon dioxide storage tank 14 fixedly connected to the upper side end face of the foundation 11, and the right side end face of the liquid carbon dioxide storage tank 14 is provided with a valve body one 15, the first valve body 15 is internally provided with a first valve body cavity 39 communicated with the liquid carbon dioxide storage tank 14, the inner wall of the left side of the first valve body cavity 39 is connected with a first valve core 40 in a sliding mode, the first valve core 40 can seal a through hole between the first valve body cavity 39 and the liquid carbon dioxide storage tank 14, and the end face of the upper side of the liquid carbon dioxide storage tank 14 is fixedly connected with a third air cylinder 42.
Beneficially, the underground oil storage tank 12 is filled with compressed carbon dioxide gas, the liquid carbon dioxide storage tank 14 stores normal-temperature liquid carbon dioxide, and the fire extinguishing system is composed of the transformer temperature detection mechanism 101, the carbon dioxide fire extinguishing driving mechanism 102, the insulating oil extraction and transfer mechanism 103, and the dry powder carbon dioxide composite fire extinguishing mechanism 104.
Beneficially, the transformer temperature detection mechanism 101 includes a transformer assembly 21 disposed in the transformer inner cavity 22, a first air cylinder 32 is fixedly connected to an upper end face of the transformer inner cavity 22, a first air cavity 58 communicated with the transformer inner cavity 22 is disposed in the first air cylinder 32, a first piston 57 is slidably connected to the first air cavity 58, a lifting rod 34 is fixedly connected to a lower end face of the first piston 57, a bimetal thermal plate 59 is fixedly connected to a right inner wall of the transformer inner cavity 22, the bimetal thermal plate 59 is fixedly connected to the lifting rod 34, and a fifth air pipe 33 is communicated between the first air cavity 58 and the third air cavity 44.
Beneficially, an air chamber III 44 communicated with the valve body cavity I39 is arranged in the air cylinder III 42, a piston III 43 is connected in the air chamber III 44 in a sliding mode, a piston rod III 41 is fixedly connected to the lower side end face of the piston III 43, the piston rod III 41 is fixedly connected with the valve core I40, a first impeller 17 located on the right side of the liquid carbon dioxide storage tank 14 is fixedly connected to the upper side end face of the foundation 11, and a first air conveying pipe 16 is connected between the first impeller 17 and the valve body cavity I39 in a communicating mode.
Beneficially, the insulating oil extraction and transfer mechanism 103 includes an infusion tube 51 communicated and connected between the transformer inner cavity 22 and the underground oil storage tank 12, a second rotating shaft 53 extending rightward to an outer side of an end face of the infusion tube 51 is rotatably connected to an inner wall of a left side of the infusion tube 51, a second valve core 52 located in the infusion tube 51 is fixedly connected to the second rotating shaft 53, a gear 54 located on a right side of the infusion tube 51 is fixedly connected to the second rotating shaft 53, a second air cylinder 36 is fixedly connected to an end face of a right side of the infusion tube 51, a second air cavity 56 with a downward opening is arranged in the second air cylinder 36, a sixth air delivery tube 35 is communicated and connected between the second air cavity 56 and the fifth air delivery tube 33, a second piston 55 is slidably connected to the second air cavity 56, a downward rack 37 is fixedly connected to an end face of a lower side of the second, the liquid pump 38 positioned on the lower side of the valve core two 52 is arranged on the liquid conveying pipe 51, a first rotating shaft 49 extending into the liquid pump 38 is arranged in the first impeller 17, and the first rotating shaft 49 can drive the liquid pump 38 to work.
Beneficially, the second valve element 52 can seal the infusion tube 51, and the rotary joint of the second rotating shaft 53 and the infusion tube 51 is in sealed connection.
Beneficially, the dry powder carbon dioxide composite fire extinguishing mechanism 104 comprises a storage tank 28 fixedly connected to the upper side end face of the oil-immersed transformer 20, a storage cavity 29 is arranged in the storage tank 28, a mixing tank 27 is fixedly connected to the lower side end face of the storage tank 28, a mixing cavity 61 communicated with the storage cavity 29 is arranged in the mixing tank 27, a second impeller 25 is fixedly connected to the upper side end face of the underground oil storage tank 12, the second impeller 25 is communicated with the first impeller 17 and is connected with a second air delivery pipe 19, the second impeller 25 is communicated with the mixing cavity 61 and is connected with a third air delivery pipe 26, a third rotating shaft 60 extending upwards into the storage cavity 29 is arranged in the second impeller 25, a first bevel gear 64 located in the mixing cavity 61 is fixedly connected to the third rotating shaft 60, and an inclined rotary disc 62 located above the first bevel gear 64 is connected to the third rotating shaft 60 through a flat key, the inclined plane carousel 62 with be connected with compression spring 63 between the bevel gear 64, fixed connection is located on the three 60 of pivot helical blade 30 in the storage chamber 29, it has the pivot four 67 of extending right to rotate on the inner wall of mixing chamber 61 left side, fixedly connected with on the four 67 of pivot with the cam 66 of inclined plane carousel 62 butt, fixedly connected with on the four 67 of pivot with bevel gear two 65 that bevel gear 64 meshing is connected, fixedly connected with spray tube 24 on the inner wall of transformer inner chamber 22 upside, be equipped with five shower nozzles 23 that open side down on the spray tube 24, spray tube 24 with it is connected with air-supply pipe four 31 to communicate with each other between the mixing chamber 61.
Beneficially, a vacuum generator 18 is arranged on the second air delivery pipe 19, a one-way pressure relief valve 46 is arranged on the upper side end face of the underground oil storage tank 12, an air delivery pipe seven 47 is communicated and connected between the one-way pressure relief valve 46 and the vacuum generator 18, and the storage cavity 29 is used for storing dry powder.
A method for using a transformer with a reduced fire risk level according to the present disclosure is described in detail below with reference to fig. 1 to 6:
initial state: the thermal bimetallic strip 59 is not deformed by heating, the first piston 57 is positioned at the lower limit position, the second piston 55 and the rack 37 are positioned at the upper limit position, the second valve core 52 seals the infusion tube 51, the third piston 43 and the first valve core 40 are positioned at the upper limit position, and the first valve core 40 seals the first valve cavity 39 and the opening of the liquid carbon dioxide storage tank 14;
when the temperature in the transformer inner cavity 22 is close to the flash point of the insulating oil, the thermal bimetallic strip 59 deforms upwards to drive the lifting rod 34 and the piston I57 to move upwards, the air flow generated by the upward movement of the piston I57 is conveyed into the air cavity III 44 through the air conveying pipe five 33 and the air conveying pipe six 35 to be conveyed into the air cavity II 56, the air flow drives the piston II 55 and the rack 37 to move downwards, the rack 37 is connected with the gear 54 in a meshed mode, the gear 54 drives the rotating shaft II 53 and the valve core II 52 to rotate, so that the transformer inner cavity 22 is communicated with the underground oil storage tank 12, the insulating oil in the transformer inner cavity 22 is conveyed into the underground oil storage tank 12 through the liquid conveying pipe 51 and the liquid pump 38 to be stored, meanwhile, the air flow drives the piston III 43, the piston III 41 and the valve core I40 to move downwards, and the normal-temperature and high-pressure carbon dioxide liquid in the liquid carbon dioxide storage, The first turbine 17, the vacuum generator 18, the second air delivery pipe 19, the second turbine 25 and the third air delivery pipe 26 are conveyed into the mixing cavity 61, the first turbine 17 and the second turbine 25 are driven by carbon dioxide air flow to work, the first turbine 17 drives the liquid pump 38 through the first rotating shaft 49, and the liquid pump 38 works to accelerate the conveying of the insulating oil in the transformer inner cavity 22 into the underground oil storage tank 12 for storage, so that the amount of the insulating oil in the transformer inner cavity 22 is reduced, and the damage degree of the insulating oil in the transformer inner cavity 22 to the transformer assembly 21 is reduced;
because the underground oil storage tank 12 is stored with compressed carbon dioxide gas, the insulating oil flowing into the underground oil storage tank 12 is ensured not to be combusted, and as the oil level in the underground oil storage tank 12 rises, the redundant carbon dioxide gas can be conveyed into the second air conveying pipe 19 through the one-way pressure release valve 46 and the vacuum generator 18 and conveyed into the mixing chamber 61 along with the air flow in the second air conveying pipe 19;
meanwhile, the air flow drives the second impeller 25 to work, the second impeller 25 drives the third rotating shaft 60 to rotate, the third rotating shaft 60 drives the spiral blade 30, the inclined surface turntable 62 and the first bevel gear 64 to rotate, the spiral blade 30 conveys the dry powder in the storage cavity 29 into the mixing cavity 61, the first bevel gear 64 drives the second bevel gear 65, the cam 66 and the fourth rotating shaft 67 to rotate through meshing connection, the cam 66 drives the inclined surface turntable 62 to vibrate up and down under the action of the compression spring 63, so that the inclined surface turntable 62 realizes rotary vibration, the inclined surface turntable 62 stirs the dry powder falling into the mixing cavity 61 through the rotary vibration, so that the dry powder can be uniformly dispersed in the air flow, the carbon dioxide air flow in the mixing cavity 61 carries the dry powder to be sprayed into the transformer inner cavity 22 through the air conveying pipe four 31, the spray pipe 24 and the spray nozzle 23 to cool and extinguish fire of the transformer inner cavity 22, and the carbon dioxide air flow rushes, the air in the inner cavity 22 of the transformer can be rapidly discharged through the respirator of the transformer, so that the fire extinguishing effect is improved, and the rapid fire extinguishing is realized.
The invention has the beneficial effects that: the transformer temperature detection mechanism of the invention detects the internal temperature of the transformer through the bimetallic strip, and triggers the carbon dioxide fire extinguishing driving mechanism and the insulating oil extraction and transfer mechanism to work through airflow, the insulating oil extraction and transfer mechanism can quickly convey insulating oil into the underground oil storage tank, the underground oil storage tank is filled with carbon dioxide gas to prevent the insulating oil from burning in the underground oil storage tank, and the insulating oil in the transformer can be transferred to reduce the fuel in the transformer, meanwhile, the dry powder carbon dioxide composite fire extinguishing mechanism sprays dry powder carbon dioxide airflow in the transformer to carry out composite fire extinguishing, and realizes quick fire extinguishing by reducing fuel in the transformer and carrying out composite fire extinguishing, therefore, the fire risk degree is reduced, the damage degree of the components in the transformer is reduced, electric drive is not needed in the fire extinguishing process, the situation that the transformer cannot work due to power failure caused by fire is avoided, and the reliability is high.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (9)
1. A transformer with a reduced fire risk level, comprising a foundation, characterized in that: the ground is internally provided with an underground oil storage tank, the upper side end face of the ground is fixedly connected with an oil-immersed transformer, the oil-immersed transformer is internally provided with a transformer inner cavity, the transformer inner cavity is internally provided with a transformer temperature detection mechanism, the upper side end face of the ground is provided with a carbon dioxide fire extinguishing driving mechanism positioned on the left side of the oil-immersed transformer, the carbon dioxide fire extinguishing driving mechanism is used for storing and utilizing liquid carbon dioxide as a power source of a fire extinguishing system, the lower side of the oil-immersed transformer is provided with an insulating oil extraction and transfer mechanism, the insulating oil extraction and transfer mechanism conveys insulating oil in the transformer inner cavity into the underground oil storage tank for storage when a fire disaster occurs or will occur, so as to reduce the damage condition of the oil-immersed transformer by the fire disaster, and the transformer temperature detection mechanism utilizes, and the transformer temperature detection mechanism triggers the carbon dioxide fire extinguishing drive mechanism and the insulating oil extraction and transfer mechanism to work through air pressure, so that the situation that a fire extinguishing system cannot normally operate due to power failure caused by fire is avoided, the upper side of the oil immersed transformer is provided with a dry powder carbon dioxide composite fire extinguishing mechanism, the dry powder carbon dioxide composite fire extinguishing mechanism carries out fire extinguishing treatment by spraying dry powder and carbon dioxide in the inner cavity of the transformer, the insulating oil extraction and transfer mechanism comprises a liquid carbon dioxide storage tank fixedly connected to the upper side end face of the foundation, a first valve body is arranged on the right side end face of the liquid carbon dioxide storage tank, a first valve body cavity communicated with the liquid carbon dioxide storage tank is arranged in the first valve body, a first valve core is connected to the inner wall of the left side of the first valve body cavity in a sliding manner, and the first valve body, and a third air cylinder is fixedly connected to the end face of the upper side of the liquid carbon dioxide storage tank.
2. A transformer having a reduced fire risk level as claimed in claim 1, wherein: the underground oil storage tank is filled with compressed carbon dioxide gas, the liquid carbon dioxide storage tank stores normal-temperature liquid carbon dioxide, and the fire extinguishing system is composed of the transformer temperature detection mechanism, the carbon dioxide fire extinguishing driving mechanism, the insulating oil extraction and transfer mechanism and the dry powder carbon dioxide composite fire extinguishing mechanism.
3. A transformer having a reduced fire risk level as claimed in claim 1, wherein: the transformer temperature detection mechanism comprises a transformer assembly arranged in a transformer inner cavity, a first air cylinder is fixedly connected to the upper side end face of the transformer inner cavity, a first air cavity communicated with the transformer inner cavity is arranged in the first air cylinder, a first piston is connected to the first air cavity in a sliding mode, a lifting rod is fixedly connected to the lower side end face of the piston, a thermal bimetallic strip is fixedly connected to the inner wall of the right side of the transformer inner cavity, the thermal bimetallic strip is fixedly connected with the lifting rod, and a fifth air delivery pipe is connected between the first air cavity and the third air cavity in a communicating mode.
4. A transformer having a reduced fire risk level as claimed in claim 3, wherein: the air cylinder III is internally provided with an air cavity III communicated with the valve cavity I, the air cavity III is connected with a piston III in a sliding mode, the lower side end face of the piston III is fixedly connected with a piston rod III, the piston rod III is fixedly connected with the valve core I, the upper side end face of the foundation is fixedly connected with a turbine I positioned on the right side of the liquid carbon dioxide storage tank, and the turbine I is communicated with the valve cavity I and is connected with a gas delivery pipe I.
5. A transformer having a reduced fire risk level according to claim 4, characterised in that: the insulating oil extraction and transfer mechanism comprises a transformer inner cavity and an infusion tube communicated and connected between the underground oil storage tank, the inner wall of the left side of the infusion tube is rotatably connected with a second rotating shaft extending rightwards to the outside of the end face of the infusion tube, the second rotating shaft is fixedly connected with a second valve core positioned in the infusion tube, the second rotating shaft is fixedly connected with a gear positioned on the right side of the infusion tube, the right end face of the infusion tube is fixedly connected with a second air cylinder, the second air cylinder is internally provided with a second air cavity with a downward opening, the second air cavity and the fifth air tube are communicated and connected with a sixth air tube, the second air cavity is internally and slidably connected with a second piston, the lower side end face of the second piston is fixedly connected with a downward rack, the rack is connected with the gear in a meshed manner, the infusion tube is provided with a liquid pump positioned on, the first rotating shaft can drive the liquid pump to work.
6. A transformer having a reduced fire risk level according to claim 5, characterised in that: the second valve core can seal the infusion tube, and the rotary joint of the second rotating shaft and the infusion tube is in sealing connection.
7. A transformer having a reduced fire risk level as claimed in claim 6, wherein: the dry powder carbon dioxide composite fire extinguishing mechanism comprises a storage tank fixedly connected with the upper side end face of the oil-immersed transformer, a storage cavity is arranged in the storage tank, a mixing tank is fixedly connected with the lower side end face of the storage tank, a mixing cavity communicated with the storage cavity is arranged in the mixing tank, a second impeller is fixedly connected with the upper side end face of the underground oil storage tank, a second air pipe is communicated and connected between the second impeller and the first impeller, a third air pipe is communicated and connected between the second impeller and the mixing cavity, a third rotating shaft extending upwards into the storage cavity is arranged in the second impeller, a first bevel gear located in the mixing cavity is fixedly connected on the third rotating shaft, a bevel turntable located on the upper side of the first bevel gear is connected on the third rotating shaft through a flat key, and a compression spring is connected between the bevel turntable and the first bevel gear, the last fixed connection of pivot three is located store the helical blade of intracavity, it is connected with the pivot four that extends right to rotate on the inner wall of hybrid chamber left side, the last fixed connection of pivot four with the cam of inclined plane carousel butt, the last fixed connection of pivot four with bevel gear two that bevel gear meshing is connected, fixedly connected with spray tube on the inner wall of transformer inner chamber upside, be equipped with five shower nozzles that open side down on the spray tube, the spray tube with communicate with each other between the hybrid chamber and be connected with gas-supply pipe four.
8. A transformer having a reduced fire risk level as claimed in claim 7, wherein: and a vacuum generator is arranged on the second gas pipe, a one-way pressure release valve is arranged on the upper side end face of the underground oil storage tank, a seventh gas pipe is communicated and connected between the one-way pressure release valve and the vacuum generator, and the storage cavity is used for storing dry powder.
9. The method of using a transformer with a reduced fire risk level of claim 8, wherein:
initial state: the first piston is positioned at the lower limit position, the second piston and the rack are positioned at the upper limit position, the second valve core seals the liquid conveying pipe, the third piston and the first valve core are positioned at the upper limit position, and the first valve core seals the first valve cavity and the first liquid carbon dioxide storage tank;
when the temperature in the inner cavity of the transformer is close to the flash point of the insulating oil, the thermal bimetallic strip deforms upwards to drive the lifting rod and the first piston to move upwards, airflow generated by the upward movement of the first piston is conveyed into the third air cavity through the fifth air conveying pipe and the sixth air conveying pipe to the second air cavity, the airflow drives the second piston and the rack to move downwards, the rack is connected with the gear through meshing, the gear drives the second rotating shaft and the second valve core to rotate, so that the inner cavity of the transformer is communicated with the underground oil storage tank, the insulating oil in the inner cavity of the transformer is conveyed into the underground oil storage tank through the liquid conveying pipe and the liquid pump to be stored, meanwhile, the third piston rod and the first valve core are driven by the airflow to move downwards, the normal-temperature and high-pressure carbon dioxide liquid in the liquid carbon dioxide storage tank is gasified quickly and conveyed into the mixing cavity through the first valve cavity, the first air conveying, the first impeller drives a liquid pump through a rotating shaft I, and the liquid pump operates to accelerate the conveying of the insulating oil in the inner cavity of the transformer to an underground oil storage tank for storage, so that the amount of the insulating oil in the inner cavity of the transformer is reduced, and the damage degree of the insulating oil combustion in the inner cavity of the transformer to transformer components is reduced;
compressed carbon dioxide gas is stored in the underground oil storage tank, so that the insulating oil flowing into the underground oil storage tank is prevented from burning, and as the oil level in the underground oil storage tank rises, redundant carbon dioxide gas can be conveyed into the second gas conveying pipe through the one-way pressure release valve and the vacuum generator and conveyed into the mixing cavity along with the gas flow in the second gas conveying pipe;
meanwhile, the air flow drives the impeller II to work, the impeller II drives the rotating shaft III to rotate, the rotating shaft III drives the spiral blade, the inclined surface rotary table and the bevel gear I to rotate, the spiral blade conveys the dry powder in the storage cavity into the mixing cavity, the bevel gear I drives the movable bevel gear II, the cam and the rotating shaft IV to rotate through meshing, the cam drives the inclined surface rotary table to vibrate up and down under the action of the compression spring, so that the inclined surface rotary table realizes rotary vibration, the inclined surface rotary table stirs the dry powder falling into the mixing cavity through the rotary vibration, the dry powder can be uniformly dispersed in the air flow, the carbon dioxide air flow in the mixing cavity carries the dry powder to be sprayed into the transformer cavity through the gas conveying pipe IV, the spray pipe and the spray nozzle, the temperature reduction and the fire extinguishing are carried out on the transformer cavity, and the air in the transformer cavity can be quickly discharged through a, thereby improving the fire extinguishing effect and realizing quick fire extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110282393.XA CN112908650A (en) | 2021-03-16 | 2021-03-16 | Transformer capable of reducing fire risk degree and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110282393.XA CN112908650A (en) | 2021-03-16 | 2021-03-16 | Transformer capable of reducing fire risk degree and using method thereof |
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| CN112908650A true CN112908650A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110282393.XA Withdrawn CN112908650A (en) | 2021-03-16 | 2021-03-16 | Transformer capable of reducing fire risk degree and using method thereof |
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| CN (1) | CN112908650A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113525944A (en) * | 2021-06-18 | 2021-10-22 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum storage device |
| CN113838640A (en) * | 2021-09-14 | 2021-12-24 | 江苏志博电气有限公司 | Oil-immersed transformer with fire extinguishing function and position adjusting function |
| CN116570860A (en) * | 2023-04-04 | 2023-08-11 | 无锡科斯克技术服务有限公司 | Transformer with efficient fire extinguishing device and working method thereof |
| CN117831903A (en) * | 2024-03-06 | 2024-04-05 | 荣尔电气集团股份有限公司 | Protective transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882501A (en) * | 2019-11-18 | 2020-03-17 | 山东天康达安防科技有限公司 | Transformer comprehensive fire prevention and control system |
| CN112331459A (en) * | 2020-11-10 | 2021-02-05 | 新昌灵思变压器科技有限公司 | Transformer fire extinguishing device capable of quickly relieving pressure and enabling transformer oil to flow back |
-
2021
- 2021-03-16 CN CN202110282393.XA patent/CN112908650A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882501A (en) * | 2019-11-18 | 2020-03-17 | 山东天康达安防科技有限公司 | Transformer comprehensive fire prevention and control system |
| CN112331459A (en) * | 2020-11-10 | 2021-02-05 | 新昌灵思变压器科技有限公司 | Transformer fire extinguishing device capable of quickly relieving pressure and enabling transformer oil to flow back |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113525944A (en) * | 2021-06-18 | 2021-10-22 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum storage device |
| CN113838640A (en) * | 2021-09-14 | 2021-12-24 | 江苏志博电气有限公司 | Oil-immersed transformer with fire extinguishing function and position adjusting function |
| CN113838640B (en) * | 2021-09-14 | 2024-03-01 | 河北科杰电力器材制造有限公司 | Oil immersed transformer capable of extinguishing fire and adjusting position |
| CN116570860A (en) * | 2023-04-04 | 2023-08-11 | 无锡科斯克技术服务有限公司 | Transformer with efficient fire extinguishing device and working method thereof |
| CN117831903A (en) * | 2024-03-06 | 2024-04-05 | 荣尔电气集团股份有限公司 | Protective transformer |
| CN117831903B (en) * | 2024-03-06 | 2024-05-14 | 荣尔电气集团股份有限公司 | Protective transformer |
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