CN116580933A - Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer - Google Patents
Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer Download PDFInfo
- Publication number
- CN116580933A CN116580933A CN202310816766.6A CN202310816766A CN116580933A CN 116580933 A CN116580933 A CN 116580933A CN 202310816766 A CN202310816766 A CN 202310816766A CN 116580933 A CN116580933 A CN 116580933A
- Authority
- CN
- China
- Prior art keywords
- transformer
- temperature
- fixedly connected
- oil
- transformer oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 17
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 235000019198 oils Nutrition 0.000 description 111
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 230000008569 process Effects 0.000 description 13
- 230000006978 adaptation Effects 0.000 description 11
- 239000002244 precipitate Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 10
- 230000005684 electric field Effects 0.000 description 8
- 230000032683 aging Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011087 paperboard Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019476 oil-water mixture Nutrition 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009421 internal insulation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011540 sensing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- H01F27/085—Cooling by ambient air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a transformer oil temperature monitoring auxiliary cooling device in transformer operation, which relates to the technical field of transformer oil cooling, and comprises an oil immersed transformer, wherein one side of the oil immersed transformer is provided with a cooling pipe in a penetrating way, the top end of the cooling pipe is provided with a temperature sensor in a penetrating way, the temperature sensor is electrically connected with a reserve power supply, and the inner wall of the cooling pipe is fixedly connected with a positioning ring arranged below the temperature sensor; through when cooling down transformer oil, will carry thermal air current and collect to make thermocouple both ends form the temperature difference, form thermoelectric potential in the thermocouple is inside, finally through the thermocouple to the inside electric energy of input of reserve power supply, and store down in reserve power supply is inside, thereby reaches the purpose of collecting and utilizing the heat energy that loses transformer oil cooling in-process.
Description
Technical Field
The invention relates to the technical field of transformer oil cooling, in particular to a transformer oil temperature monitoring auxiliary cooling device in transformer operation.
Background
The oil-immersed power transformer occupies an important position in the running process of a power grid, for the oil-immersed power transformer, the internal insulation of the oil-immersed power transformer is mainly composed of an insulating paperboard and transformer oil, so that the transformer oil is an important liquid insulation medium, and the transformer oil has the functions of arc extinction, insulation, cooling and the like, but is the weakest link of the internal insulation performance of the transformer, and the insulation performance of the transformer oil directly determines whether the transformer can safely work;
the transformer insulation paper board in operation contains trace moisture to different degrees, the saturated water absorption concentration of transformer oil is very dependent on temperature, the saturated micro water content of transformer oil is higher as the temperature is higher, but the transformer oil plays a role in cooling the transformer, so that the transformer oil is required to be controlled, the transformer oil is cooled when the transformer oil temperature is too high, however, when the transformer oil temperature is reduced, the condition that the content of the transformer oil is higher than the saturated concentration at the corresponding temperature possibly occurs, at the moment, part of micro water is separated out from the transformer oil, an oil-water mixture is formed inside the transformer, so that the inside of the transformer oil is not a single and homogeneous material any more, the dielectric property of the transformer oil is influenced, the moisture can change the electric field in the transformer oil, and focus is generated under the action of the electric field inside the transformer, so that partial discharge is initiated;
in addition, as the transformer oil plays a role in reducing the temperature in the transformer, when the transformer oil is too high in temperature, the transformer oil can age, so that the electrical strength of the transformer oil is reduced, meanwhile, some aging byproducts are generated, brown-black precipitates (such as mechanical impurities and free carbon) are formed in the transformer oil, partial discharge is further caused in the transformer, and breakdown is finally caused, so that the transformer is damaged;
therefore, the transformer oil temperature monitoring auxiliary cooling device for transformer oil in transformer operation is provided for monitoring the transformer oil temperature and assisting in transformer oil cooling, so that the problems that the transformer oil is excessively high in temperature and micro water in the transformer oil is prevented from being separated out to influence the dielectric property of the transformer oil when the outdoor environment temperature is excessively low are solved.
Disclosure of Invention
(one) solving the technical problems
In view of the above, the present invention provides an auxiliary cooling device for monitoring the temperature of transformer oil in operation of a transformer to solve the above-mentioned problems in the prior art.
(II) technical scheme
In order to realize the purposes of monitoring the temperature of the transformer oil and assisting in cooling the transformer oil, avoiding the influence on the dielectric property of the transformer oil caused by micro water precipitation in the transformer oil when the temperature of the transformer oil is too high and the outdoor environment temperature is too low, the invention provides the following technical scheme: the utility model provides a transformer oil temperature monitoring auxiliary cooling device in transformer operation, includes oil-immersed transformer, one side of oil-immersed transformer runs through and is provided with the cooling tube, the top of cooling tube runs through and is provided with temperature-sensing ware, electric connection between temperature-sensing ware and the reserve power supply, the inner wall fixedly connected with of cooling tube sets up the holding ring in the temperature-sensing ware below, has seted up the recess of size and quantity and connecting plate looks adaptation on the holding ring, the inboard of holding ring articulates there are four connecting plates that are central symmetry and distribute, adjacent two all be provided with the diaphragm of top and holding ring fixed connection between the connecting plate, the diaphragm size is with the distance looks adaptation between two adjacent connecting plates, the inner wall of connecting plate all laminating has the connecting rod, the connecting rod size is with the distance looks adaptation between the limiting member to the connecting plate, the inside of connecting rod intermediate position is provided with the spring, the one end that the connecting rod kept away from the connecting plate is all fixed connection on the defining piece, the round hole of size and rotating member looks adaptation is seted up to the defining piece inside, the outside that the connecting rod kept away from defining piece one end all is provided with the driven ring of laminating diaphragm inner wall, from the size and the diaphragm looks adaptation of moving ring, the inner wall fixedly connected with fixture block of driven ring, fixture block size and spout looks adaptation, driven ring sliding connection is in the spout of rotating member outer wall seting up, and the spout is formed by two acute angle grooves head and the tail links to each other that are central symmetry, the rotating member sets up in the inside of defining piece, the bottom fixedly connected with extrusion piece of rotating member, the outside size and the follower looks adaptation of extrusion piece, the outside laminating of extrusion piece has four follower pieces that are central symmetry setting, the driven block is fixedly connected with an arc-shaped connecting piece arranged at the bottom of the connecting plate and the diaphragm at one end far away from the extrusion piece, a spring is arranged in the arc-shaped connecting piece, a fixed block is rotationally connected to the outer side of the top end of the extrusion piece, and a through hole with the size matched with that of the rotating piece is formed in the fixed block;
still including rotating the rotating block of connection at cooling tube intermediate position, the rotating block is connected with the first output of external motor, the inner wall fixedly connected with filter of rotating block, the inside water-absorbent resin that has filled of filter, the top fixedly connected with special-shaped gear of filter central point put, the stopper has been cup jointed in the outside at special-shaped gear top, and the recess of size and tooth piece looks adaptation has been seted up at the stopper both ends, the inside that the special-shaped gear both ends were kept away from to the stopper all is provided with the tooth piece that is central symmetry, has seted up the recess of size and special-shaped gear looks adaptation on the tooth piece, and the tooth piece outside is provided with the spring, the voussoir of the equal fixedly connected with bottom laminating filter in both ends of tooth piece.
Preferably, the bottom of the limiting piece is provided with a spring, one end of the spring is fixedly connected to the top of the fixed block, and the fixed block is arranged on the outer side of the bottom of the rotating piece.
Preferably, the top of the special-shaped gear is fixedly connected with the rotating piece, and the inner walls of the tooth blocks are all meshed with the outer sides of the special-shaped gear.
Preferably, the top fixedly connected with mounting of backup pad one end, the round hole of size and fan looks adaptation is seted up to the mounting inside, the inside of mounting is provided with the fan, and the fan is connected with the second output shaft of external motor, the top fixedly connected with gas collecting tube of backup pad other end, and the cross section of gas collecting tube one end is trapezoidal, the one end fixedly connected with temperature sensing board of gas collecting tube, and the temperature sensing board is temperature sensitive material, for example semiconductor ceramic.
Preferably, the upper and lower both ends of temperature sensing board all run through and are provided with the outlet duct, the inside upper and lower both ends of gas collecting tube all are provided with the baffle of one end and gas collecting tube inner wall fixed connection, and the baffle is inside to form the cross section with the gas collecting tube inner wall in the gas collecting tube and is trapezoidal gas compression chamber, and two are axisymmetric setting the inside of the opposite side of baffle is provided with the dead lever.
Preferably, the outside sliding connection of dead lever has the movable block, and the through-hole of size and dead lever looks adaptation is seted up to the inside of movable block, and the movable block is connected with the third output shaft of external motor, the outside fixedly connected with one end of movable block and gas collecting tube inner wall fixedly connected's extensible member, and the transversal trapezoidal of extensible member is personally submitted.
Preferably, a thermocouple is arranged at the central position of one side of the temperature sensing plate far away from the gas collecting tube, one end of the thermocouple far away from the temperature sensing plate is fixedly connected with a reserve power supply, and the reserve power supply is electrically connected with the temperature sensor.
Preferably, the moving block is disposed inside the gas collecting tube.
Preferably, the transmission line is axisymmetric with the reserve power supply as a symmetry axis, one end of the transmission line, which is far away from the reserve power supply, is fixedly connected with a heating ring arranged on the outer side of the cooling pipe, and a round hole with a dimension which is matched with the cooling pipe is formed in the heating ring.
(III) beneficial effects
Compared with the prior art, the invention provides a transformer oil temperature monitoring auxiliary cooling device in the operation of a transformer, which has the following beneficial effects:
1. the transformer oil inside the oil immersed transformer can be prevented from being degraded too quickly by cooling the transformer oil through air flow, the phenomenon that the transformer oil is deepened, the viscosity is increased and the aging condition of the transformer oil is accelerated due to the fact that the temperature of the transformer oil exceeds 85 ℃ in the using process is avoided, the problem that the transformer oil is damaged due to the fact that the electrical property of the transformer oil is reduced after aging, the interfacial tension is reduced and brown-black precipitate is even generated, and then the transformer is broken down due to the fact that partial discharge is caused in the transformer is avoided.
2. When transformer oil is cooled, air flow carrying heat is collected and converged, so that temperature difference is formed at two ends of the thermocouple, thermoelectric potential is formed inside the thermocouple, electric energy is finally input into the reserve power supply through the thermocouple, and the electric energy is stored inside the reserve power supply, and therefore the purpose of collecting and utilizing heat energy dissipated in the transformer oil cooling process is achieved.
3. Through the effect of temperature-sensing ware, when outdoor environment temperature is too low, the temperature of transformer oil also can reduce along with it, and after the temperature of transformer oil drops to under zero, the inside ring that will generate heat of reserve power starts, heats the intensification to transformer oil, prevents that transformer oil from solidifying owing to the too low appearance of temperature, and then influences transformer normal operating's purpose.
4. Through filtering the transformer oil in the use and the inside precipitate of transformer oil, can avoid using for a long time because of the transformer, the inside transformer oil of transformer ages gradually, the inside condition that can produce the precipitate of transformer oil and remove along with the circulation of transformer oil, the setting of filtering and collecting the precipitate can be convenient when changing the transformer oil to the inside clearance of transformer to reach the inside precipitate's of the ageing transformer oil purpose of clearance.
5. The transformer oil is heated through the reserve power supply indirectly, the transformer oil is heated, the temperature of the transformer oil can be reduced along with the transformer oil due to the fact that the temperature of the external environment is too low, the insulation paper board inside the transformer can be caused to separate out micro water due to the fact that the temperature is too low, the separation amount can be gradually increased along with the gradual reduction of the temperature, the water content of the transformer oil with the originally low water content is increased, an oil-water mixture is gradually formed inside the transformer, the dielectric property of the transformer oil is affected, the water can change an electric field in the transformer oil, focusing is generated under the action of the electric field inside the transformer, partial discharge is triggered, and when the temperature is reduced, the water is absorbed through the water-absorbing resin, so that the purpose of absorbing the water mixed in the transformer oil when the temperature is too low is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the connection relationship at the cooling tube of the present invention;
FIG. 3 is a schematic cross-sectional view of the inside of the header of the present invention;
FIG. 4 is a schematic view of the position relationship of the baffle plate of the present invention;
FIG. 5 is a schematic view of the internal cross-section of a cooling tube of the present invention;
FIG. 6 is a schematic diagram of the connection relationship at the rotating block of the present invention;
FIG. 7 is a schematic diagram of the connection relationship at the positioning ring according to the present invention;
FIG. 8 is a schematic diagram of the connection relationship at the connecting rod of the present invention;
FIG. 9 is a schematic illustration of the connection at an extrusion of the present invention;
fig. 10 is a schematic view of the positional relationship at the rotary member of the present invention.
In the figure: 101. an oil immersed transformer; 102. a cooling tube; 103. a temperature sensor; 104. a positioning ring; 105. a connecting plate; 106. a diaphragm; 107. a connecting rod; 108. a limiting piece; 109. a slave ring; 110. a clamping block; 111. a rotating member; 112. a chute; 113. an extrusion; 114. a driven block; 115. an arc-shaped connecting piece; 116. a fixed block;
201. a rotating block; 202. a filter; 203. a special-shaped gear; 204. a limiting block; 205. tooth blocks; 206. wedge blocks;
301. a support plate; 302. a fixing member; 303. a fan; 304. a gas collecting tube; 305. a temperature sensing plate; 306. an air outlet pipe; 307. a baffle; 308. a fixed rod; 309. a moving block; 310. a telescoping member; 311. a thermocouple; 312. storing a power supply;
401. a transmission line; 402. and heating the ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1, 2 and 5 to 10, an auxiliary cooling device for monitoring the temperature of the oil temperature of the transformation oil in the operation of a transformer comprises an oil immersed transformer 101, wherein one side of the oil immersed transformer 101 is provided with a cooling pipe 102 in a penetrating way, the top end of the cooling pipe 102 is provided with a temperature sensor 103 in a penetrating way, the temperature sensor 103 is electrically connected with a reserve power supply 312, the inner wall of the cooling pipe 102 is fixedly connected with a positioning ring 104 arranged below the temperature sensor 103, the positioning ring 104 is provided with grooves with the size and the number matched with those of the connecting plates 105, the inner side of the positioning ring 104 is hinged with four connecting plates 105 which are distributed in a central symmetry way, a diaphragm 106 with the top end fixedly connected with the positioning ring 104 is arranged between two adjacent connecting plates 105, the diaphragm 106 is made of LLDPE film, the size of the diaphragm 106 is matched with the distance between the two adjacent connecting plates 105, the inner wall of the connecting plate 105 is adhered with a connecting rod 107, the size of the connecting rod 107 is matched with the distance between the connecting plate 105 and the limiting piece 108, a spring is arranged in the middle position of the connecting rod 107, one end of the connecting rod 107 far away from the connecting plate 105 is fixedly connected to the limiting piece 108, the bottom of the limiting piece 108 is provided with a spring with one end fixedly connected to the top of the fixed block 116, the spring rebounds when the limiting piece 108 moves to the bottommost end of the rotating piece 111, the limiting piece 108 moves upwards, a round hole with the size matched with the rotating piece 111 is formed in the limiting piece 108, a driven ring 109 which is adhered to the inner wall of the diaphragm 106 is arranged on the outer side of one end of the connecting rod 107 far away from the limiting piece 108, the size of the driven ring 109 is matched with the diaphragm 106, a clamping block 110 is fixedly connected to the inner wall of the driven ring 109, the clamping block 110 is matched with a sliding groove 112, the driven ring 109 is slidingly connected in the sliding groove 112 formed in the outer wall of the rotating piece 111, the chute 112 is formed by connecting two acute angle grooves which are centrosymmetric end to end, the rotating piece 111 is arranged in the limiting piece 108, the bottom of the rotating piece 111 is fixedly connected with the extrusion piece 113, the outer side dimension of the extrusion piece 113 is matched with the driven piece 114, the outer side of the extrusion piece 113 is jointed with four driven pieces 114 which are centrosymmetrically arranged, one ends of the driven pieces 114 far away from the extrusion piece 113 are fixedly connected with arc-shaped connecting pieces 115 which are arranged at the bottoms of the connecting plates 105 and the diaphragms 106, springs are arranged in the arc-shaped connecting pieces 115, the outer sides of the top ends of the extrusion pieces 113 are rotationally connected with fixed blocks 116, the fixed blocks 116 are arranged at the outer sides of the bottoms of the rotating piece 111, through holes with the dimensions matched with the rotating piece 111 are formed in the inner parts of the fixed blocks 116, the rotary blocks 201 which are rotationally connected at the middle positions of the cooling pipes 102 are further included, the rotating block 201 is connected with a first output end of an external motor, a filter element 202 is fixedly connected to the inner wall of the rotating block 201, water absorbent resin is filled in the filter element 202, a special-shaped gear 203 is fixedly connected to the top of the center of the filter element 202, the top of the special-shaped gear 203 is fixedly connected with a rotating element 111, a limiting block 204 is sleeved on the outer side of the top of the special-shaped gear 203, grooves with the size matched with a tooth block 205 are formed in the two ends of the limiting block 204, tooth blocks 205 with the central symmetry are arranged in the inner walls far away from the two ends of the special-shaped gear 203, the inner walls of the tooth blocks 205 are meshed with the outer sides of the special-shaped gear 203, grooves with the size matched with the special-shaped gear 203 are formed in the tooth blocks 205, springs are arranged on the outer sides of the tooth blocks 205, and wedges 206 with the bottoms matched with the filter element 202 are fixedly connected to the two ends of the tooth blocks 205.
The effects achieved by this embodiment are as follows: compared with the prior art, the device is in transformer oil use, clear up transformer oil inside because ageing produced precipitate, simultaneously when external environment is too low, pass through absorbent resin with transformer oil inside because the too low doped moisture of temperature absorbs, reduced the inside moisture that contains of transformer oil, avoid when external environment temperature is too low, transformer oil doped moisture too much leads to the inside partial discharge that appears of transformer oil, influence the use of transformer, still avoided simultaneously because the too much partial transformer oil solidification that leads to of moisture, and then damage the condition appearance of transformer.
Embodiment two: referring to fig. 1 to 5, an auxiliary cooling device for monitoring the temperature of the oil temperature of the transformer in operation comprises a supporting plate 301 arranged at the bottom of the oil immersed transformer 101, wherein a fixing part 302 is fixedly connected to the top of one end of the supporting plate 301, a round hole with a size matched with that of the fan 303 is formed in the fixing part 302, the fan 303 is arranged in the fixing part 302 and is connected with a second output shaft of an external motor, a gas collecting tube 304 is fixedly connected to the top of the other end of the supporting plate 301, the cross section of one end of the gas collecting tube 304 is trapezoid, one end with a larger size is used for collecting gas, the volume of the gas is compressed by the change of the inner diameter of the gas collecting tube 304, thereby increasing the gas pressure in the gas collecting tube 304, one end of the gas collecting tube 304 is fixedly connected with a temperature sensing plate 305, the temperature sensing plate 305 is made of a temperature sensitive material such as semiconductor ceramics, the upper end and the lower end of the temperature sensing plate 305 are provided with a gas outlet tube 306 in a penetrating manner, the upper and lower ends inside the gas collecting tube 304 are both provided with baffle plates 307 with one end fixedly connected with the inner wall of the gas collecting tube 304, the baffle plates 307 and the inner wall of the gas collecting tube 304 form a gas compression cavity with a trapezoid cross section, the two baffle plates 307 which are axisymmetrically arranged are arranged at the opposite sides, the inside of each baffle plate 307 is provided with a fixed rod 308, the outside of each fixed rod 308 is slidably connected with a movable block 309, the inside of each movable block 309 is provided with a through hole with the size matched with that of the fixed rod 308, the movable block 309 is arranged inside the gas collecting tube 304, the movable block 309 is connected with a third output shaft of an external motor, the outside of one end of each movable block 309 is fixedly connected with a telescopic member 310 with one end fixedly connected with the inner wall of the gas collecting tube 304, the cross section of the telescopic member 310 is trapezoid, the center position of one side of the temperature sensing plate 305 away from the gas collecting tube 304 is provided with a thermocouple 311, one end of the thermocouple 311, which is far away from the temperature sensing plate 305, is fixedly connected with a reserve power supply 312, the reserve power supply 312 is electrically connected with the temperature sensor 103, the thermocouple further comprises a transmission line 401 fixedly connected with the reserve power supply 312, the transmission line 401 is axisymmetrically distributed by taking the reserve power supply 312 as a symmetrical axis, one end of the transmission line 401, which is far away from the reserve power supply 312, is fixedly connected with a heating ring 402 arranged on the outer side of the cooling pipe 102, and round holes with the same size as the cooling pipe 102 are formed in the heating ring 402.
The effects achieved by this embodiment are as follows: compared with the prior art, the device is when carrying out the cooling to transformer oil, will mix the air current that has the temperature and collect and enlarge the temperature to form the electric potential difference through thermocouple 311, and then with temperature conversion electric energy storage, when external environment temperature is lower, can release the electric energy of storing, and then heat up transformer oil.
The working process and principle of the whole contents of the first to second embodiments are as follows: through the circulation of the transformer oil in the cooling tube 102 connected with the oil immersed transformer 101, when the external environment temperature is higher, the temperature sensor 103 with one end arranged in the cooling tube 102 can detect the transformer oil temperature in the cooling tube 102, and when the temperature is higher, the external motor electrically connected with the temperature sensor 103 can be started, so that the fan 303 connected with the external motor rotates, and meanwhile, the moving block 309 connected with the external motor can reciprocate outside the fixed rod 308; as the fan 303 rotates, the airflow around the oil immersed transformer 101 is accelerated to drive the airflow to cool the cooling tube 102, so as to cool the transformer oil in the cooling tube 102, as the airflow passes through the cooling tube 102, the airflow is heated, and then part of the airflow passes through one end with a larger size of the gas collecting tube 304 and enters the gas collecting tube 304; at this time, the moving block 309 that reciprocates under the action of the external motor causes the expansion member 310 that is fixedly connected with the moving block 309 to extend or contract inside the gas collecting tube 304, so that the gas flow around the gas collecting tube 304 is sucked into the gas collecting tube 304, and along the compression cavity formed between the gas collecting tube 304 and the baffle 307, the gas inside the gas collecting tube 304 is correspondingly collected and compressed due to the smaller inner diameter of the compression cavity, and then collected on the temperature sensing plate 305 that is a temperature sensing material; at this time, the temperature of one end of the thermocouple 311 connected with the temperature sensing plate 305 will rise, so that a temperature difference is formed between two ends of the thermocouple 311, a thermoelectric potential will be formed inside the thermocouple 311, the direction is that the end with high temperature is towards the end with low temperature, the thermocouple 311 converts the heat carried in the air flow into electric energy, and finally the electric energy is stored in the reserve power supply 312; as the temperature of the transformer oil in the cooling pipe 102 decreases, the transformer temperature inside the oil-immersed transformer 101 gradually flows towards the transformer oil with lower temperature in the cooling pipe 102 until the transformer oil temperature inside the oil-immersed transformer 101 is balanced; in the flowing process of transformer oil, a rotating block 201 connected with an external motor rotates around a rotating center at a connecting position with a cooling pipe 102, a filter piece 202 fixedly connected with the rotating block 201 rotates along with the rotating block, a special-shaped gear 203 is fixedly connected to the filter piece 202, so that the special-shaped gear 203 rotates along with the rotating block, a tooth block 205 meshed with the special-shaped gear 203 rotates under the action of the special-shaped gear 203, a spring arranged on the outer side of the tooth block 205 is extruded, a wedge block 206 fixedly connected with the tooth block 205 moves along with the surface of the filter piece 202, when the special-shaped gear 203 rotates to be not meshed with the tooth block 205, the tooth block 205 moves reversely under the spring rebound effect, drives the wedge block 206 fixedly connected with the special-shaped gear to move reversely, and the tooth block 205 repeats the moving process and circulates and reciprocates along with the fact that the special-shaped gear 203 is meshed with the tooth block 205 again; along with the rotation of the special-shaped gear 203, the extrusion 113 fixedly connected with the special-shaped gear and the rotating piece 111 fixedly connected with the extrusion 113 also rotate along with the rotation of the extrusion 113, the driven block 114 which is arranged outside the extrusion 113 and is jointed with the extrusion 113 expands outwards along with the rotation of the extrusion 113, so that the arc-shaped connecting piece 115 fixedly connected with the driven block 114 stretches outwards, at the moment, the sizes of one end of the connecting plate 105 and one end of the diaphragm 106 which are arranged above the arc-shaped connecting piece 115 become larger, then the size is reduced under the action of the extrusion 113, and the process is repeated along with the continuous rotation of the extrusion 113; the connecting plate 105 rotates by taking the connecting position of the connecting plate and the positioning ring 104 as a fulcrum under the action of the arc-shaped connecting piece 115, at the moment, the inner diameters of the connecting plate 105 and the bottom end of the diaphragm 106 are continuously changed, transformer oil in the cooling pipe 102 is sucked into the middle of the diaphragm 106, and the flow of the transformer oil in the cooling pipe 102 is accelerated, so that the temperature reduction of the transformer oil is accelerated; as the time of use increases, brown-black precipitates develop inside the transformer oil, which precipitates enter the cooling tube 102 as the transformer oil enters, one part of the precipitates are intercepted by the diaphragm 106, and the other part of the precipitates are intercepted by the filter element 202; the rotation of the rotating member 111 is accompanied by the rotation of the pressing member 113, the clamping block 110 arranged in the chute 112 formed on the pressing member 113 drives the limiting member 108 fixedly connected with the clamping block 110 along the track of the chute 112, and moves from the top of the rotating member 111 to the bottom of the rotating member 111, in the process, the driven member connected with the limiting member 108 through the connecting rod 107 rotates along with the rotation of the rotating member 111, the spring arranged outside the driven member is extruded in the downward moving process of the driven member, and the driven member is attached to the inner wall of the diaphragm 106, so that the driven member can clean the sediment intercepted on the diaphragm 106 until the limiting member 108 moves to the bottommost end of the rotating member 111 along the track of the chute 112 under the reverse acting force of the spring, and the process is repeated along with the continuous rotation of the rotating member 111, so that the sediment intercepted by the diaphragm 106 is cleaned; when the temperature of the external environment is too low, the temperature of the transformer oil is reduced, after the temperature is reduced, the insulating paper board arranged in the oil immersed transformer 101 can separate out micro water, the separated out micro water can become larger gradually along with the reduction of the temperature, the separated micro water can be mixed in the transformer oil to form an oil-water mixture, so that the inside of the transformer oil is not a single and homogeneous material, the dielectric property of the transformer oil is affected, the electric field in the transformer oil can be changed by water, the electric field in the transformer is focused under the action of the electric field in the transformer, so that partial discharge is caused, at the moment, temperature induction can be changed, a reserve power supply 312 electrically connected with a temperature induction area can be discharged, and the electric quantity stored in the reserve power supply 312 when the transformer oil is cooled is discharged through a transmission line 401, so that a heating ring 402 connected with the transmission line 401 is heated, and the temperature of the transformer oil is raised; meanwhile, the filter element 202 arranged in the cooling pipe 102 can continuously filter the passing transformer oil, and meanwhile, the water-absorbent resin filled in the filter element 202 can absorb the water doped in the transformer oil, so that the condition that the electric field of the transformer oil is influenced by the water doped in the transformer oil due to too low temperature is avoided, and the transformer is damaged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a transformer oil temperature monitoring auxiliary cooling device in transformer operation, includes oil-immersed transformer (101), its characterized in that: one side of oil immersed transformer (101) is run through and is provided with cooling tube (102), the top of cooling tube (102) is run through and is provided with temperature-sensing ware (103), the inner wall fixedly connected with of cooling tube (102) sets up go-between (104) in temperature-sensing ware (103) below, the inboard of go-between (104) articulates has four connecting plates (105) that are central symmetry distribution, adjacent two all be provided with between connecting plates (105) top and go-between (104) fixed connection's diaphragm (106), the inner wall of connecting plates (105) all laminating has connecting rod (107), the one end that connecting rod (107) kept away from connecting plate (105) all fixed connection is on defining piece (108), the outside that connecting rod (107) kept away from defining piece (108) one end all is provided with driven ring (109) of laminating diaphragm (106) inner wall, the inner wall fixedly connected with fixture block (110) of driven ring (109), sliding connection is in spout (112) that rotating piece (111) outer wall set up, rotating piece (111) set up inside and defining piece (108) are the inside, the outside is defining piece (113) is provided with central piece (113), one end of the driven block (114) far away from the extrusion piece (113) is fixedly connected with an arc-shaped connecting piece (115) arranged at the bottoms of the connecting plate (105) and the diaphragm (106), and the outer side of the top end of the extrusion piece (113) is rotationally connected with a fixed block (116); still including rotating the rotating block (201) of connection at cooling tube (102) intermediate position, the inner wall fixedly connected with filter element (202) of rotating block (201), the top fixedly connected with special-shaped gear (203) of filter element (202) central point put, stopper (204) have been cup jointed in the outside at special-shaped gear (203) top, inside that special-shaped gear (203) both ends were kept away from to stopper (204) all is provided with tooth piece (205) that are central symmetry, wedge (206) that filter element (202) were laminated to the equal fixedly connected with bottom in both ends of tooth piece (205).
2. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of a transformer according to claim 1, wherein: the bottom of the limiting piece (108) is provided with a spring, one end of the spring is fixedly connected to the top of the fixed block (116), and the fixed block (116) is arranged on the outer side of the bottom of the rotating piece (111).
3. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of a transformer according to claim 1, wherein: the top of the special-shaped gear (203) is fixedly connected with the rotating piece (111), and the inner walls of the tooth blocks (205) are all meshed with the outer sides of the special-shaped gear (203).
4. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of a transformer according to claim 1, wherein: still including setting up backup pad (301) in oil-immersed transformer (101) bottom, the top fixedly connected with mounting (302) of backup pad (301) one end, the inside of mounting (302) is provided with fan (303), the top fixedly connected with gas collecting tube (304) of backup pad (301) other end, the one end fixedly connected with temperature sensing board (305) of gas collecting tube (304).
5. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of the transformer according to claim 4, wherein: the upper and lower both ends of temperature sensing board (305) all run through and are provided with outlet duct (306), the inside upper and lower both ends of gas collecting tube (304) all are provided with baffle (307) of one end and gas collecting tube (304) inner wall fixed connection, and two are axisymmetric setting baffle (307) are provided with dead lever (308) in the inside of opposite side.
6. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of the transformer according to claim 5, wherein: the outside sliding connection of dead lever (308) has movable block (309), the outside fixedly connected with one end of movable block (309) and gas-collecting tube (304) inner wall fixedly connected's extensible member (310).
7. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of the transformer according to claim 4, wherein: a thermocouple (311) is arranged at the center position of one side, far away from the gas collecting tube (304), of the temperature sensing plate (305), and one end, far away from the temperature sensing plate (305), of the thermocouple (311) is fixedly connected with a reserve power supply (312).
8. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of the transformer according to claim 6, wherein: the moving block (309) is arranged inside the gas collecting tube (304).
9. The auxiliary cooling device for monitoring the temperature of the transformer oil in operation of the transformer according to claim 7, wherein: the cooling device is characterized by further comprising a transmission line (401) fixedly connected with the reserve power supply (312), wherein the transmission line (401) is axisymmetrically distributed by taking the reserve power supply (312) as a symmetry axis, and one ends, far away from the reserve power supply (312), of the transmission line (401) are fixedly connected with heating rings (402) arranged on the outer side of the cooling pipe (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310816766.6A CN116580933B (en) | 2023-07-05 | 2023-07-05 | Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310816766.6A CN116580933B (en) | 2023-07-05 | 2023-07-05 | Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116580933A true CN116580933A (en) | 2023-08-11 |
| CN116580933B CN116580933B (en) | 2024-01-12 |
Family
ID=87545545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310816766.6A Active CN116580933B (en) | 2023-07-05 | 2023-07-05 | Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116580933B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014175646A (en) * | 2013-03-13 | 2014-09-22 | Mitsubishi Electric Corp | Temperature protection device of magnetic device and electric power unit |
| CN207409345U (en) * | 2017-11-22 | 2018-05-25 | 深圳市海科变压器有限公司 | A kind of oily type transformer |
| CN109003788A (en) * | 2018-07-27 | 2018-12-14 | 重庆市璧山区佳润电力咨询服务有限公司 | A kind of oil-immersed type transformer cooling device |
| CN209118892U (en) * | 2018-11-30 | 2019-07-16 | 河南华泰电力设备有限公司 | A kind of oil-immersed transformer |
| KR102015457B1 (en) * | 2019-07-22 | 2019-10-23 | 한국초고압 주식회사 | Power transformer simplifies respiratory structure |
| CN111029100A (en) * | 2020-01-02 | 2020-04-17 | 吉能电气有限公司 | Oil-immersed transformer |
-
2023
- 2023-07-05 CN CN202310816766.6A patent/CN116580933B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014175646A (en) * | 2013-03-13 | 2014-09-22 | Mitsubishi Electric Corp | Temperature protection device of magnetic device and electric power unit |
| CN207409345U (en) * | 2017-11-22 | 2018-05-25 | 深圳市海科变压器有限公司 | A kind of oily type transformer |
| CN109003788A (en) * | 2018-07-27 | 2018-12-14 | 重庆市璧山区佳润电力咨询服务有限公司 | A kind of oil-immersed type transformer cooling device |
| CN209118892U (en) * | 2018-11-30 | 2019-07-16 | 河南华泰电力设备有限公司 | A kind of oil-immersed transformer |
| KR102015457B1 (en) * | 2019-07-22 | 2019-10-23 | 한국초고압 주식회사 | Power transformer simplifies respiratory structure |
| CN111029100A (en) * | 2020-01-02 | 2020-04-17 | 吉能电气有限公司 | Oil-immersed transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116580933B (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116580933B (en) | Auxiliary cooling device for monitoring oil temperature of transformer oil in operation of transformer | |
| WO2023197733A1 (en) | Electronic product | |
| CN219576399U (en) | Prevent overheated low-voltage distribution cabinet in inside | |
| CN113280933A (en) | Prevent high temperature type temperature transmitter with shock-absorbing function | |
| CN108521749B (en) | Heat radiation structure of frequency converter | |
| CN203928644U (en) | Single cone heat pipe type spiral drier | |
| CN204116101U (en) | Novel pure steam sampler for oil | |
| CN117225352A (en) | Bromination cauldron with accuse temperature function | |
| CN208969037U (en) | Cleveland open cup flash test device | |
| CN111397412B (en) | Loop heat pipe heat accumulator with different upper and lower heat accumulation capacities | |
| CN216152833U (en) | High accurate hot pressing accuse temperature forming device of filter core | |
| CN109346292B (en) | Workshop dry-type transformer cooling device | |
| CN117146242B (en) | Lamp with internal circulation heat dissipation type | |
| CN214371899U (en) | Double-cylinder sleeve type underground heat exchanger with circulating plug mechanism | |
| CN201634635U (en) | Four-combination quick dehydrator for crude oil | |
| CN218593136U (en) | Cooling cutting device is used in processing of heat conduction silica gel material | |
| CN219046098U (en) | Oxidation stability measuring equipment | |
| CN112331455B (en) | Oil-immersed transformer | |
| CN218973311U (en) | Box type supercharging air cooler | |
| CN215784131U (en) | Novel energy-saving large-capacity refrigerated centrifuge | |
| CN117109186B (en) | Solar heat collecting tube heat increasing and storing device | |
| CN211959918U (en) | Combined heat dissipation structure based on heat conduction paste | |
| CN117167199B (en) | Wind generating set of cabin integrated step-up transformer | |
| CN220254139U (en) | Hot plug type intelligent integrated power capacitor compensation device | |
| CN218632008U (en) | Heat dissipation packaging structure of semiconductor power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |