CN111312484B - Comprehensive monitoring device for transformer - Google Patents
Comprehensive monitoring device for transformer Download PDFInfo
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- CN111312484B CN111312484B CN202010247753.8A CN202010247753A CN111312484B CN 111312484 B CN111312484 B CN 111312484B CN 202010247753 A CN202010247753 A CN 202010247753A CN 111312484 B CN111312484 B CN 111312484B
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 67
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 70
- 238000007789 sealing Methods 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000241 respiratory effect Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000001114 tooth apex Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a comprehensive monitoring device for a transformer, wherein the transformer is set as an oil-immersed transformer, and the oil-immersed transformer comprises an oil discharge port and an oil injection port; the comprehensive monitoring device comprises a filter pressing device communicated with the oil discharge port, the filter pressing device is used for filtering impurities of old oil in the oil tank of the oil-immersed transformer, and the outlet end of the filter pressing device is sequentially communicated with a recovery storage tank and a refilling storage tank; the recovery storage tank is used for storing and monitoring old oil in an oil tank of the oil-immersed transformer, the refilling storage tank is used for storing and monitoring new oil injected into the oil tank of the oil-immersed transformer, and a plurality of groups of communicating pipelines are arranged between the recovery storage tank and the refilling storage tank; the comprehensive monitoring device also comprises a first air seal valve, a second air seal valve, a breathing pump, a three-way valve A, a stop valve, a three-way valve B, a booster pump and a plurality of check valves which are arranged on the communicating pipeline. The comprehensive monitoring device for the transformer monitors various parameters of the transformer oil in real time, and simultaneously performs replacement of new oil and old oil to play a role in protecting the transformer.
Description
Technical Field
The invention relates to the technical field of plant planting, in particular to a comprehensive monitoring device for a transformer.
Background
The transformer is one of important equipment in a power distribution link in the power industry, and plays a vital role in industrial enterprises and civil building power supply and distribution systems. Oil-immersed transformers use transformer oil as an insulating and cooling medium at the end of the 19 th century. The transformer oil has rich natural storage capacity, low price and good insulating property, and can reduce the insulating distance and reduce the cost; the viscosity is low, and the heat transfer performance is good; protecting the core and windings from moisture in the air; protecting the insulating paper and board from oxygen, reducing the aging of insulating material, prolonging the service life of transformer, etc., so it is widely used.
At present, the transformer oil is mostly sampled and checked to indirectly ensure the normal operation of the transformer, however, the conventional sampling and checking method still has the following disadvantages:
1. the real-time performance is poor, the processing time of a fault point is delayed, and even larger accidents can be caused;
2. only detection is possible and control is impossible.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a comprehensive monitoring device for a transformer, which monitors various parameters of transformer oil in real time and replaces new oil and old oil to protect the transformer.
The technical scheme adopted by the invention is as follows:
the utility model provides a guardianship device is synthesized to transformer, the transformer sets up to oil-immersed transformer, oil-immersed transformer's oil tank lower corner department is provided with the oil drain port rather than the intercommunication, and oil-immersed transformer's oil tank upper corner department is provided with the oiling mouth rather than the intercommunication, arrange, oiling mouth sets up in the both sides of oil tank diagonal. The guardianship device includes the filter pressing device who is linked together with the oil drain port, filter pressing device is used for carrying out impurity filtering to the old oil in the oil-immersed transformer oil tank, includes by lower supreme base mechanism, filter equipment, top seal mechanism, the adjustment mechanism that sealing connection set up in proper order:
the base mechanism comprises an underframe fixed on the ground, a bottom plate is fixedly arranged on the underframe, an annular first sealing ring is arranged on the upper plate surface of the bottom plate, an oil inlet communicated with an oil discharge port is arranged on the bottom plate in the center of the inner ring of the first sealing ring in a penetrating manner, and a plurality of sliding rods distributed in an array manner are fixedly arranged on the bottom plate of the outer ring of the first sealing ring;
the filter mechanism comprises a plurality of filter plates which are stacked in the vertical direction, a first sliding hole and a through groove are arranged on each filter plate in a penetrating mode, the first sliding hole is sleeved on the sliding rod in a sliding mode, an annular second sealing ring is arranged on the upper end face of each filter plate, the through groove is arranged in the center of each filter plate, a cloth filter material is horizontally arranged in the through groove, a through hole penetrating through the filter plates is formed in one side of the through groove, the filter materials and the through holes are both arranged on the intra-ring filter plates of the second sealing rings, and the lower portions of the through holes are communicated with one side below the filter materials;
the top sealing mechanism comprises a sealing plate, a second sliding hole and a through hole are arranged on the sealing plate in a penetrating mode, the second sliding hole and the first sliding hole share the same central axis and are sleeved on the sliding rod in a sliding mode, the through hole and the through hole share the same central axis, a limiting support is fixedly arranged on the upper plate surface of the sealing plate right above the through hole, and an oil outlet is arranged in the center of the sealing plate in a penetrating mode;
the adjusting mechanism comprises an end socket which is sealed and slidably arranged in the through hole, the upper end of the end socket is fixedly provided with a connecting rod, the connecting rod is sealed and slidably arranged in the through hole, the upper end of the connecting rod is fixedly provided with a counterweight head, and the counterweight head frame is arranged on the upper end surface of the limiting bracket;
in the process of filtering oil in the oil tank of the oil-immersed transformer, when impurities and oil sludge are attached to the filter material arranged on the lower filter plate, the oil passing performance of the filter material is reduced, the adjusting mechanism is jacked upwards until the upper filter plate is perforated, and the filter material of the upper filter plate is used for filtering.
The oil outlet is sequentially communicated with a recovery storage tank and a supplementary storage tank, the recovery storage tank is used for storing and monitoring old oil in the oil tank of the oil-immersed transformer, and the supplementary storage tank is used for storing and monitoring new oil injected into the oil tank of the oil-immersed transformer.
Furthermore, a bypass pipeline is communicated between an oil inlet and an oil outlet of the filter pressing device, at least one three-way valve A is arranged at the tee joint of the bypass pipeline and the oil inlet and outlet pipelines, and the three-way valve A is set as a T-shaped through-hole valve;
and a check valve A is arranged on a communicating pipeline between the tee joint of the bypass pipeline and the oil inlet pipeline and the oil outlet and used for preventing the old oil from flowing back into an oil tank of the oil-immersed transformer.
Further, the recovery storage tank comprises a first tank body, an inlet and a recovery discharge port are communicated and arranged at a lower seal head of the first tank body, a pipeline of the inlet extends upwards to the upper part in the first tank body, the recovery discharge port is arranged in the center of the lower seal head, two openings are communicated and arranged at the upper seal head of the first tank body, a breather pump and a first air seal valve are respectively arranged at the two openings, and a first monitoring mechanism is fixedly arranged on the side wall of a cylinder body of the first tank body;
the reinjection storage tank comprises a second tank body, wherein a discharge port is formed in the center of a lower end socket of the second tank body in a communicated mode, an oil supplementing port used for filling transformer oil into the reinjection storage tank, a top port communicated with a breather pump and a second air seal valve communicated with the first air seal valve are formed in the upper end socket of the second tank body in a communicated mode, and a second monitoring mechanism is fixedly arranged on the side wall of a cylinder body of the second tank body.
Furthermore, a booster pump is arranged on a communication pipeline between the check valve A and the bypass pipeline, and is used for pumping out transformer oil in the oil-immersed transformer oil tank;
a recovery discharge port of the recovery storage tank is communicated with a discharge port of the refilling storage tank and is communicated with an oil filling port, and a connecting pipeline of the oil filling port is communicated with a check valve C for preventing oil in an oil tank of the oil-immersed transformer from flowing back;
the air exhaust end of the breathing pump is communicated with a pipeline on the recovery storage tank, and the air exhaust end of the breathing pump is communicated with the top opening of the refilling storage tank;
the air outlet ends of the first and second air-sealing valves are respectively communicated with the recovery storage tank and the refilling storage tank, and the air inlet ends of the first and second air-sealing valves are communicated with each other through a pipeline and communicated to the inert gas buffer container.
Furthermore, a stop valve is arranged on a communication pipeline between a recovery discharge port of the recovery storage tank and a discharge port of the refilling storage tank;
a check valve B is arranged on a communicating pipeline near the discharge port of the recharging storage tank and used for preventing the oil in the recovery storage tank from flowing into the recharging storage tank;
the breathing pump is provided with three-way valve B on the communicating pipeline with the apical foramen, three-way valve B sets up to L type opening valve to its row's mouth end communicates to inert gas recovery container department through the pipeline.
Further, first, two monitoring mechanism are including fixed the setting respectively in retrieving the storage tank, annotating the electrical control box on the storage tank barrel lateral wall, be provided with real-time accurate oil of integration and be situated between and decrease tester, power module, communication module, automatic control device in the electrical control box:
the real-time integrated precise oil dielectric loss tester comprises a dielectric loss oil cup, a temperature controller, a temperature sensor, a dielectric loss testing bridge, an alternating current test power supply and a standard capacitor, and is used for monitoring the acid value, the water-soluble acid content, the oxidation stability, the breakdown voltage, the dielectric loss factor, the interfacial tension, the flash point/condensation point, the gas component content and the volume resistivity of the transformer oil in real time;
the power supply module and the communication module are respectively used for supplying power to the real-time integrated precision oil dielectric loss tester and remotely transmitting real-time data of the transformer oil;
the breathing pump, the three-way valve A, the stop valve, the three-way valve B and the booster pump are respectively and electrically connected with the control module of the automatic control device.
A working method of a transformer comprehensive monitoring device comprises the following steps:
a real-time monitoring stage:
A. the automatic control device controls the three-way valve A and the three-way valve B to be opened into L-shaped openings, the booster pump is started, the stop valve is opened, the breathing pump is closed, and at the moment, the bypass pipeline is opened;
B. oil in an oil tank of the oil-immersed transformer sequentially passes through the check valve A, the bypass pipeline and the inlet until reaching the inside of the first tank body, and the transformer oil in the first tank body is monitored through the first monitoring mechanism;
C. the transformer oil in the first tank body sequentially passes through the recovery discharge port, the stop valve and the check valve C until the transformer oil returns to the oil tank of the oil-immersed transformer;
D. when various parameters of the transformer oil in the first tank body monitored by the first monitoring mechanism meet requirements, the state is kept;
in the process of the real-time monitoring stage, when the transformer oil parameter in the first tank body monitored by the first monitoring mechanism does not meet the requirement, the filter-pressing monitoring stage is switched to:
E. the automatic control device controls the three-way valve A to be opened into a straight-line-shaped port, the three-way valve B to be opened into an L-shaped port, the booster pump is started, the stop valve is opened, the breathing pump is closed, and at the moment, the bypass pipeline is closed;
F. oil in an oil tank of the oil-immersed transformer sequentially passes through the check valve A, the oil inlet and the oil outlet until reaching the inside of the first tank body, and the transformer oil in the first tank body is monitored through the first monitoring mechanism;
G. in the process of filtering oil in the oil tank of the oil-immersed transformer by the filter pressing device, after impurities and oil sludge are attached to the filter material arranged on the lower filter plate, the oil passing performance of the filter material is reduced, the adjusting mechanism is jacked upwards until the upper filter plate is perforated, and the filter material of the upper filter plate is used for filtering;
H. when various parameters of the transformer oil in the first tank body monitored by the first monitoring mechanism are recovered and meet the requirements, the state is kept;
in the process of the filter-pressing monitoring stage, the transformer oil parameter in the first tank body monitored by the first monitoring mechanism does not meet the requirement, and simultaneously, when the transformer oil parameter in the second tank body monitored by the second monitoring mechanism meets the requirement, the tank body is switched to a replacement monitoring state:
I. the automatic control device controls the three-way valve A to be opened into an L-shaped through hole, the three-way valve B to be opened into a straight-shaped through hole, the booster pump is started, the breathing pump is started, the stop valve is closed, and at the moment, the bypass pipeline is opened;
J. the old oil in the oil tank of the oil-immersed transformer sequentially passes through the check valve A, the bypass pipeline and the inlet until reaching the inside of the first tank body;
K. the breathing pump pumps the gas in the first tank body into the second tank body, and at the moment, the transformer fresh oil in the second tank body sequentially passes through the discharge port, the check valve B and the check valve C until the transformer fresh oil is filled into an oil tank of the oil-immersed transformer;
and L, in the process of replacing new oil and old oil in an oil tank of the oil-immersed transformer, when all parameters of the transformer oil in the first tank body monitored by the first monitoring mechanism are recovered and meet requirements, stopping the state and switching to the state of a real-time monitoring stage.
The comprehensive monitoring device for the transformer has the advantages that:
1. monitoring the transformer oil in the recovery storage tank in real time through the circulation of the transformer oil;
2. filtering impurities and water in the transformer oil in a filter pressing mode of a filter pressing device;
3. the first and second air-sealing valves prevent the transformer in the recovery and refilling storage tank from being oxidized due to air contact;
through the breather pump, in the gaseous pump pumping of retrieving the storage tank reinjection storage tank, realize the replacement of transformer oil.
Drawings
In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.
FIG. 1 is a general perspective view of a transformer integrated monitoring device according to an embodiment of the present invention;
FIG. 2 is an exploded view of a filter press device of the integrated monitoring device of the transformer according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of a recycling and refilling tank of a transformer integrated monitoring device according to an embodiment of the present invention;
fig. 4 is a partially enlarged schematic view of an adjusting mechanism of the integrated monitoring device of the transformer according to an embodiment of the present invention.
In the figure:
100. an oil-immersed transformer 101, an oil drain port 102, an oil filling port 1, a filter pressing device,
11. a base mechanism 111, a bottom frame 112, a bottom plate 113, a first sealing ring 114, an oil inlet 115 and a sliding rod,
12. a filtering mechanism 121, a filter plate 122, a first slide hole 123, a second seal ring 124, a filtering material 125, a perforation,
13. a top sealing mechanism 131, a sealing plate 132, a second slide hole 133, a through hole 134, an oil outlet 135, a limit bracket,
14. an adjusting mechanism 141, a seal head 142, a connecting rod 143 and a counterweight head,
2. a recovery storage tank 20, a first tank body 21, an inlet 22, a recovery discharge port 23, a breathing pump 24 and a first air seal valve,
25. a first monitoring mechanism for monitoring the operation of the motor,
3. a filling storage tank 30, a second tank body 31, an oil filling port 32, a discharge port 33, a top port 34 and a second air seal valve,
35. a second monitoring mechanism for monitoring the temperature of the workpiece,
41. check valves A, 42, three-way valves A, 43, stop valves, 44, check valves B, 45, three-way valve B,
46. a check valve C.
Detailed Description
In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention are within the scope of the invention without making creative efforts.
According to the comprehensive monitoring device for the transformer, as shown in fig. 1, the transformer is set as an oil-immersed transformer 100, an oil discharge port 101 communicated with the oil tank is arranged at the lower corner of the oil tank of the oil-immersed transformer 100, an oil filling port 102 communicated with the oil tank is arranged at the upper corner of the oil tank of the oil-immersed transformer 100, and the oil discharge port 101 and the oil filling port 102 are arranged at two sides of the diagonal line of the oil tank. The guardianship device includes filter pressing device 1 that is linked together with oil drain 101, filter pressing device 1 is used for carrying out impurity filtering to the old oil in the oil-immersed transformer 100 oil tank, and filter pressing device 1's exit end communicates in proper order and is provided with recovery, additional injection storage tank 2, 3, recovery storage tank 2 is used for the old oil in the storage of storage and the monitoring oil-immersed transformer 100 oil tank, additional injection storage tank 3 is used for the new oil of storage and monitoring injection in the oil-immersed transformer 100 oil tank.
As shown in fig. 2, the filter pressing device 1 comprises a base mechanism 11, a filtering mechanism 12, a top sealing mechanism 13 and an adjusting mechanism 14, which are sequentially and hermetically connected from bottom to top:
as shown in fig. 2, the base mechanism 11 includes a base frame 111 fixed on the ground, a bottom plate 112 is fixedly disposed on the base frame 111, an annular first sealing ring 113 is disposed on an upper plate surface of the bottom plate 112, an oil inlet 114 communicated with the oil outlet 101 is penetratingly disposed on the bottom plate 112 at the center of an inner ring of the first sealing ring 113, a check valve a41 is disposed on a communication pipeline between a tee joint of a bypass pipeline and an oil inlet 114 pipeline and the oil outlet 101, so as to prevent old oil from flowing back into an oil tank of the oil-immersed transformer 100, meanwhile, a booster pump is disposed on the communication pipeline between the check valve a41 and the bypass pipeline, the booster pump is configured to pump out transformer oil in the oil tank of the oil-immersed transformer 100, and a plurality of sliding rods 115 distributed in an array are fixedly disposed on the bottom;
as shown in fig. 2, the filter mechanism 12 includes a filter plate 121 stacked in multiple layers in the up-down direction, a first sliding hole 122 and a through groove are formed in the filter plate 121 in a penetrating manner, the first sliding hole 122 is slidably sleeved on the sliding rod 115, an annular second sealing ring 123 is disposed on the upper end surface of the filter plate 121, the through groove is disposed in the center of the filter plate 121, a cloth filter material 124 is horizontally disposed in the through groove, a perforation 125 penetrating through the filter plate 121 is disposed on one side of the through groove, the filter material 124 and the perforation 125 are both disposed on the inner ring filter plate 121 of the second sealing ring 123, and a flow channel is disposed in communication with the lower portion of the perforation 125 to one side below the;
as shown in fig. 2, the top sealing mechanism 13 includes a sealing plate 131, a second sliding hole 132 and a through hole 133 are provided on the sealing plate 131 in a penetrating manner, the second sliding hole 132 and the first sliding hole 122 share a central axis and are slidably sleeved on the sliding rod 115, the through hole 133 and the through hole 125 share a central axis, a limiting bracket 135 is fixedly provided on the upper plate surface of the sealing plate 131 right above the through hole 133, and an oil outlet 134 is provided in the center of the sealing plate 131 in a penetrating manner;
as shown in fig. 2, the adjusting mechanism 14 includes a sealing head 141 hermetically and slidably disposed in the through hole 125, a connecting rod 142 is fixedly disposed at an upper end of the sealing head 141, the connecting rod 142 is hermetically and slidably disposed in the through hole 133, a counterweight head 143 is fixedly disposed at an upper end of the connecting rod 142, and the counterweight head 143 is erected on an upper end surface of the limiting bracket 135. The lifting of the adjusting mechanism 14 is realized through the pressure between the mutually sealed filter plates 121 and the self weight of the counterweight head 143; in order to improve the accuracy of the adjusting mechanism 14, as shown in fig. 4, a hydraulic cylinder or an electric cylinder fixed to the base frame 111 is provided at an upper portion of the counterweight head 143, and a stroke end of the hydraulic cylinder or the electric cylinder is provided in an up-down direction and is fixedly connected to the counterweight head 143.
As shown in figure 2, a bypass pipeline is communicated between the oil inlet 114 and the oil outlet 134 of the filter pressing device 1, at least one three-way valve A42 is arranged at the three-way connection position of the bypass pipeline and the oil inlet 114 and the oil outlet 134, and the three-way valve A42 is a T-shaped port valve.
As shown in fig. 3, the recycling storage tank 2 includes a first tank body 20, a lower end enclosure of the first tank body 20 is communicated with an inlet 21 and a recycling discharge port 22, a pipeline of the inlet 21 extends upwards to an upper portion of the first tank body 20, the recycling discharge port 22 is arranged in the center of the lower end enclosure, an upper end enclosure of the first tank body 20 is communicated with two openings, the two openings are respectively provided with a breathing pump 23 and a first air-sealing valve 24, and a first monitoring mechanism 25 is fixedly arranged on a side wall of a cylinder body of the first tank body 20.
As shown in fig. 3, the refilling storage tank 3 includes a second tank 30, a discharge port 32 is communicated with the center of a lower seal head of the second tank 30, an oil replenishing port 31 for filling transformer oil into the refilling storage tank 3, a top port 33 communicated with the breather pump 23, and a second air sealing valve 34 communicated with the first air sealing valve 24 are communicated with an upper seal head of the second tank 30, and a second monitoring mechanism 35 is fixedly disposed on a side wall of a cylinder of the second tank 30.
As shown in fig. 3, the recovery drain 22 of the recovery storage tank 2 is communicated with the drain 32 of the refilling storage tank 3 and is communicated with the oil filling port 102, and a check valve C46 is communicated with a connecting pipeline of the oil filling port 102 to prevent oil in the oil tank of the oil-immersed transformer 100 from flowing back; the air suction end of the breathing pump 23 is communicated with the pipeline on the recovery storage tank 2, and the exhaust end of the breathing pump 23 is communicated with the top opening 33 of the refilling storage tank 3; the air outlet ends of the first air seal valve 24 and the second air seal valve 34 are respectively communicated with the recovery storage tank 2 and the refilling storage tank 3, and the air inlet ends of the first air seal valve 24 and the second air seal valve 34 are communicated with each other and communicated to the inert gas buffer container through a pipeline. A stop valve 43 is arranged on a communication pipeline between the recovery discharge port 22 of the recovery storage tank 2 and the discharge port 32 of the refilling storage tank 3; a check valve B44 is arranged on a communication pipeline near the discharge port 32 of the refilling storage tank 3 to prevent the oil in the recovery storage tank 2 from flowing into the refilling storage tank 3; a three-way valve B45 is arranged on a communication pipeline between the breather pump 23 and the top port 33, the three-way valve B45 is arranged as an L-shaped port valve, and the outlet end of the three-way valve is communicated to an inert gas recovery container through a pipeline.
As shown in fig. 3, the first and second monitoring mechanisms 25 and 35 respectively comprise an electrical control box fixedly arranged on the side walls of the recovery storage tank and the refilling storage tank 2 and 3, and a real-time integrated precise oil dielectric loss tester, a power supply module, a communication module and an automatic control device are arranged in the electrical control box:
the real-time integrated precise oil dielectric loss tester comprises a dielectric loss oil cup, a temperature controller, a temperature sensor, a dielectric loss testing bridge, an alternating current test power supply and a standard capacitor, and is used for monitoring the acid value, the water-soluble acid content, the oxidation stability, the breakdown voltage, the dielectric loss factor, the interfacial tension, the flash point/condensation point, the gas component content and the volume resistivity of the transformer oil in real time; the power supply module and the communication module are respectively used for supplying power to the real-time integrated precision oil dielectric loss tester and remotely transmitting real-time data of the transformer oil; the three-way valve A42, the stop valve 43, the three-way valve B45, the first air seal valve 24 and the second air seal valve 34 are all automatic control valves, and the automatic control valves, the breathing pump 23 and the booster pump are respectively and electrically connected with a control module of the automatic control device.
With reference to the specific structure of the transformer integrated monitoring device according to the above embodiment, the following further describes an operating method of the transformer integrated monitoring device.
A real-time monitoring stage:
A. the automatic control device controls the three-way valve A42 and the three-way valve B45 to be opened into L-shaped ports, the booster pump is started, the stop valve 43 is opened, the breather pump 23 is closed, and at the moment, the bypass pipeline is opened;
B. oil in an oil tank of the oil-immersed transformer 100 sequentially passes through the check valve A41, the bypass pipeline and the inlet 21 until reaching the inside of the first tank body 20, and the transformer oil in the first tank body 20 is monitored through the first monitoring mechanism 25;
C. the transformer oil in the first tank 20 sequentially passes through the recovery discharge port 22, the stop valve 43 and the check valve C46 until the transformer oil returns to the oil tank of the oil-immersed transformer 100;
D. when various parameters of the transformer oil in the first tank 20 monitored by the first monitoring mechanism 25 meet the requirements, the state is kept;
in the process of the real-time monitoring stage, when the transformer oil parameter in the first tank 20 monitored by the first monitoring mechanism 25 does not meet the requirement, the filter-pressing monitoring stage is switched to:
E. the automatic control device controls a three-way valve A42 to be opened into a straight-line-shaped port, a three-way valve B45 to be opened into an L-shaped port, the booster pump is started, the stop valve 43 is opened, the breathing pump 23 is closed, and at the moment, the bypass pipeline is closed;
F. oil in an oil tank of the oil-immersed transformer 100 sequentially passes through the check valve A41, the oil inlet 114 and the oil outlet 134 until reaching the inside of the first tank body 20, and the transformer oil in the first tank body 20 is monitored through the first monitoring mechanism 25;
G. in the process of filtering the oil in the oil tank of the oil-immersed transformer 100, in the filter press device 1, when impurities and oil sludge adhere to the filter medium 124 arranged on the lower filter plate 121, the oil passing performance of the filter medium 124 is reduced, the adjusting mechanism 14 is jacked upwards until reaching the perforation 125 of the upper filter plate 121, and the filter medium 124 of the upper filter plate 121 is used for filtering;
H. when the parameters of the transformer oil in the first tank 20 monitored by the first monitoring mechanism 25 are recovered and meet the requirements, the state is kept;
in the process of the filter-pressing monitoring stage, the transformer oil parameter in the first tank 20 monitored by the first monitoring mechanism 25 does not meet the requirement, and simultaneously, the transformer oil parameter in the second tank 30 monitored by the second monitoring mechanism 35 meets the requirement, and is switched to the replacement monitoring state:
I. the automatic control device controls the three-way valve A42 to be opened into an L-shaped port, the three-way valve B45 to be opened into a straight-shaped port, the booster pump is started, the respiratory pump 23 is started, the stop valve 43 is closed, and at the moment, the bypass pipeline is opened;
J. the old oil in the oil tank of the oil-immersed transformer 100 sequentially passes through the check valve A41, the bypass pipeline and the inlet 21 until reaching the inside of the first tank body 20;
K. the breathing pump 23 pumps the gas in the first tank 20 into the second tank 30, and at this time, the new transformer oil in the second tank 30 sequentially passes through the discharge port 32, the check valve B44 and the check valve C46 until the new transformer oil is filled into the oil tank of the oil-immersed transformer 100;
in the process of replacing new oil and old oil in the oil tank of the L-type oil-immersed transformer 100, when various parameters of the transformer oil in the first tank 20 monitored by the first monitoring mechanism 25 are recovered and meet requirements, the state is stopped and switched to the state of the real-time monitoring stage.
In light of the foregoing, it is therefore evident that the present invention provides an integrated monitoring device for transformers, wherein various modifications and changes can be made by persons skilled in the art without departing from the scope and spirit of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides a guardianship device is synthesized to transformer, the transformer sets up to oil-immersed transformer (100), the oil tank lower corner department of oil-immersed transformer (100) is provided with oil drain port (101) rather than the intercommunication, and the oil tank upper corner department of oil-immersed transformer (100) is provided with oiling mouth (102) rather than the intercommunication, arrange, oiling mouth (101, 102) set up in the diagonal both sides of oil tank, its characterized in that:
include filter-pressing device (1) that is linked together with oil drain port (101), filter-pressing device (1) is used for carrying out impurity filtering to the old oil in oil-immersed transformer (100) oil tank, includes base mechanism (11), filter mechanism (12), top seal mechanism (13), adjustment mechanism (14) that sealing connection set up in proper order by supreme down:
the base mechanism (11) comprises an underframe (111) fixed on the ground, a bottom plate (112) is fixedly arranged on the underframe (111), an annular first sealing ring (113) is arranged on the upper plate surface of the bottom plate (112), an oil inlet (114) communicated with an oil outlet (101) is arranged on the bottom plate (112) in the center of the inner ring of the first sealing ring (113) in a penetrating manner, and a plurality of sliding rods (115) distributed in an array manner are fixedly arranged on the bottom plate (112) in the outer ring of the first sealing ring (113);
the filter mechanism (12) comprises a plurality of filter plates (121) which are stacked in the vertical direction, a first sliding hole (122) and a through groove are arranged on each filter plate (121) in a penetrating manner, the first sliding hole (122) is sleeved on the sliding rod (115) in a sliding manner, an annular second sealing ring (123) is arranged on the upper end face of each filter plate (121), the through groove is arranged in the center of each filter plate (121), a cloth filter material (124) is horizontally arranged in the through groove, a perforation hole (125) penetrating through each filter plate (121) is arranged on one side of the through groove, the filter materials (124) and the perforation hole (125) are both arranged on the annular filter plates (121) of the second sealing rings (123), and a flow channel is arranged on one side, below the filter material (124), of the lower portion of the perforation;
the top sealing mechanism (13) comprises a sealing plate (131), a second sliding hole (132) and a through hole (133) penetrate through the sealing plate (131), the second sliding hole (132) and the first sliding hole (122) share a central axis and are slidably sleeved on the sliding rod (115), the through hole (133) and the through hole (125) share a central axis, a limiting support (135) is fixedly arranged on the upper plate surface of the sealing plate (131) right above the through hole (133), and an oil outlet (134) penetrates through the center of the sealing plate (131);
the adjusting mechanism (14) comprises a seal head (141) which is hermetically and slidably arranged in the through hole (125), the upper end of the seal head (141) is fixedly provided with a connecting rod (142), the connecting rod (142) is hermetically and slidably arranged in the through hole (133), the upper end of the connecting rod (142) is fixedly provided with a counterweight head (143), and the counterweight head (143) is erected on the upper end face of the limiting bracket (135);
in the process of filtering oil in an oil tank of an oil-immersed transformer (100), when impurities and oil sludge are attached to a filter material (124) arranged on a filter plate (121) at the lower layer, the oil passing performance of the filter material (124) is reduced, an adjusting mechanism (14) is jacked upwards until the filter plate (121) at the upper layer is perforated (125) and is filtered by the filter material (124) of the filter plate (121) at the layer,
the oil outlet (134) is sequentially communicated with recovery and injection supplementing storage tanks (2 and 3), the recovery storage tank (2) is used for storing and monitoring old oil in an oil tank of the oil-immersed transformer (100), and the injection supplementing storage tank (3) is used for storing and monitoring new oil injected into the oil tank of the oil-immersed transformer (100).
2. The integrated monitoring device of transformer according to claim 1, wherein:
a bypass pipeline is communicated between an oil inlet (114) and an oil outlet (134) of the filter pressing device (1), at least one three-way valve A (42) is arranged at the tee joint of the bypass pipeline and the pipelines of the oil inlet and the oil outlet (114 and 134), and the three-way valve A (42) is arranged as a T-shaped through port valve;
and a check valve A (41) is arranged on a communication pipeline between the tee joint of the bypass pipeline and the oil inlet (114) pipeline and the oil outlet (101) and used for preventing the old oil from flowing back into an oil tank of the oil-immersed transformer (100).
3. The integrated monitoring device of transformer according to claim 2, wherein:
the recovery storage tank (2) comprises a first tank body (20), an inlet (21) and a recovery discharge port (22) are communicated and arranged at a lower seal head of the first tank body (20), a pipeline of the inlet (21) extends upwards to the upper part in the first tank body (20), the recovery discharge port (22) is arranged in the center of the lower seal head, two openings are communicated and arranged at an upper seal head of the first tank body (20), a breathing pump (23) and a first air seal valve (24) are respectively arranged at the two openings, and a first monitoring mechanism (25) is fixedly arranged on the side wall of a cylinder body of the first tank body (20);
the reinjection storage tank (3) comprises a second tank body (30), a discharge port (32) is formed in the center of a lower end socket of the second tank body (30) in a communicated mode, an oil supplementing port (31) used for filling transformer oil into the reinjection storage tank (3), a top port (33) communicated with a breather pump (23) and a second air seal valve (34) communicated with a first air seal valve (24) are formed in the upper end socket of the second tank body (30) in a communicated mode, and a second monitoring mechanism (35) is fixedly arranged on the side wall of a cylinder body of the second tank body (30).
4. The integrated monitoring device of transformer according to claim 3, wherein:
a booster pump is arranged on a communication pipeline between the check valve A (41) and the bypass pipeline, and is used for pumping out transformer oil in an oil tank of the oil-immersed transformer (100);
a recovery discharge port (22) of the recovery storage tank (2) is communicated with a discharge port (32) of the refilling storage tank (3) and communicated to the oil filling port (102), and a connecting pipeline of the oil filling port (102) is communicated with a check valve C (46) for preventing oil in an oil tank of the oil-immersed transformer (100) from flowing back;
the air suction end of the breathing pump (23) is communicated with a pipeline on the recovery storage tank (2), and the air exhaust end of the breathing pump (23) is communicated with the top opening (33) of the refilling storage tank (3);
the air outlet ends of the first air seal valve (24) and the second air seal valve (34) are respectively communicated with the recovery storage tank (2) and the refilling storage tank (3), and the air inlet ends of the first air seal valve (24) and the second air seal valve (34) are communicated with the inert gas buffer container through pipelines.
5. The integrated monitoring device of transformer according to claim 4, wherein:
a stop valve (43) is arranged on a communicating pipeline between a recovery discharge port (22) of the recovery storage tank (2) and a discharge port (32) of the refilling storage tank (3);
a check valve B (44) is arranged on a communication pipeline near the discharge port (32) of the refilling storage tank (3) and used for preventing the oil in the recovery storage tank (2) from flowing into the refilling storage tank (3);
the communicating pipe of breather pump (23) and apical orifice (33) is provided with three-way valve B (45) on the road, three-way valve B (45) set up to L type opening valve to its row's mouth end communicates to inert gas recovery container department through the pipeline.
6. The integrated monitoring device of transformer according to claim 5, wherein:
first, two monitoring mechanism (25, 35) are including respectively fixed setting in retrieving electrical control box on storage tank, benefit notes storage tank (2, 3) barrel lateral wall, be provided with real-time accurate oil of integration and be situated between and decrease tester, power module, communication module, automatic control device in the electrical control box:
the real-time integrated precise oil dielectric loss tester comprises a dielectric loss oil cup, a temperature controller, a temperature sensor, a dielectric loss testing bridge, an alternating current test power supply and a standard capacitor, and is used for monitoring the acid value, the water-soluble acid content, the oxidation stability, the breakdown voltage, the dielectric loss factor, the interfacial tension, the flash point/condensation point, the gas component content and the volume resistivity of the transformer oil in real time;
the power supply module and the communication module are respectively used for supplying power to the real-time integrated precision oil dielectric loss tester and remotely transmitting real-time data of the transformer oil;
the respiratory pump (23), the three-way valve A (42), the stop valve (43), the three-way valve B (45) and the booster pump are respectively and electrically connected with the control module of the automatic control device.
7. The operating method of the integrated monitoring device of the transformer according to claim 6, wherein:
a real-time monitoring stage:
A. the automatic control device controls the three-way valve A (42) and the three-way valve B (45) to be opened into L-shaped ports, the booster pump is started, the stop valve (43) is opened, the breather pump (23) is closed, and at the moment, the bypass pipeline is opened;
B. oil in an oil tank of the oil-immersed transformer (100) sequentially passes through the check valve A (41), the bypass pipeline and the inlet (21) until reaching the inside of the first tank body (20), and the transformer oil in the first tank body (20) is monitored through the first monitoring mechanism (25);
C. the transformer oil in the first tank body (20) sequentially passes through the recovery discharge port (22), the stop valve (43) and the check valve C (46) until the transformer oil returns to an oil tank of the oil-immersed transformer (100);
D. when various parameters of the transformer oil in the first tank body (20) monitored by the first monitoring mechanism (25) meet requirements, the state is kept;
in the process of the real-time monitoring stage, when the transformer oil parameter in the first tank body (20) monitored by the first monitoring mechanism (25) does not meet the requirement, the filter pressing monitoring stage is switched to:
E. the automatic control device controls a three-way valve A (42) to be opened into a straight-line-shaped port, a three-way valve B (45) to be opened into an L-shaped port, a booster pump is started, a stop valve (43) is opened, a breather pump (23) is closed, and at the moment, a bypass pipeline is closed;
F. oil in an oil tank of the oil-immersed transformer (100) sequentially passes through a check valve A (41), an oil inlet (114) and an oil outlet (134) until reaching the inside of the first tank body (20), and transformer oil in the first tank body (20) is monitored through a first monitoring mechanism (25);
G. in the process of filtering oil in an oil tank of an oil-immersed transformer (100), when impurities and oil sludge are attached to a filter material (124) arranged on a filter plate (121) at the lower layer, the oil passing performance of the filter material (124) is reduced, an adjusting mechanism (14) is jacked upwards until the filter plate (121) at the upper layer is perforated (125), and the filter material (124) of the filter plate (121) at the layer is used for filtering;
H. when various parameters of the transformer oil in the first tank body (20) monitored by the first monitoring mechanism (25) are recovered and meet the requirements, the state is kept;
in the process of the filter-pressing monitoring stage, the transformer oil parameter in the first tank body (20) monitored by the first monitoring mechanism (25) does not meet the requirement, and simultaneously, the transformer oil parameter in the second tank body (30) monitored by the second monitoring mechanism (35) meets the requirement and is switched to a replacement monitoring state:
I. the automatic control device controls a three-way valve A (42) to be opened into an L-shaped port, a three-way valve B (45) to be opened into a straight-shaped port, a booster pump is started, a respiratory pump (23) is started, a stop valve (43) is closed, and at the moment, a bypass pipeline is opened;
J. old oil in an oil tank of the oil-immersed transformer (100) sequentially passes through a check valve A (41), a bypass pipeline and an inlet (21) until reaching the inside of the first tank body (20);
K. the breathing pump (23) pumps the gas in the first tank body (20) into the second tank body (30), and at the moment, the transformer fresh oil in the second tank body (30) sequentially passes through the discharge port (32), the check valve B (44) and the check valve C (46) until the transformer fresh oil is filled into an oil tank of the oil-immersed transformer (100);
and L, in the process of replacing new oil and old oil in an oil tank of the oil-immersed transformer (100), when various parameters of the transformer oil in the first tank body (20) monitored by the first monitoring mechanism (25) are recovered and meet requirements, stopping the state and switching to the state of a real-time monitoring stage.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247753.8A CN111312484B (en) | 2020-04-01 | 2020-04-01 | Comprehensive monitoring device for transformer |
| CN202110724501.4A CN113436846A (en) | 2020-04-01 | 2020-04-01 | Filter-pressing replacement device of transformer oil |
| CN202110724472.1A CN113506677A (en) | 2020-04-01 | 2020-04-01 | Monitoring method of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247753.8A CN111312484B (en) | 2020-04-01 | 2020-04-01 | Comprehensive monitoring device for transformer |
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| CN202110724472.1A Division CN113506677A (en) | 2020-04-01 | 2020-04-01 | Monitoring method of oil-immersed transformer |
| CN202110724501.4A Division CN113436846A (en) | 2020-04-01 | 2020-04-01 | Filter-pressing replacement device of transformer oil |
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| Publication Number | Publication Date |
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| CN111312484A CN111312484A (en) | 2020-06-19 |
| CN111312484B true CN111312484B (en) | 2021-06-04 |
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| CN202110724501.4A Pending CN113436846A (en) | 2020-04-01 | 2020-04-01 | Filter-pressing replacement device of transformer oil |
| CN202010247753.8A Active CN111312484B (en) | 2020-04-01 | 2020-04-01 | Comprehensive monitoring device for transformer |
| CN202110724472.1A Pending CN113506677A (en) | 2020-04-01 | 2020-04-01 | Monitoring method of oil-immersed transformer |
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| CN202110724501.4A Pending CN113436846A (en) | 2020-04-01 | 2020-04-01 | Filter-pressing replacement device of transformer oil |
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| CN202110724472.1A Pending CN113506677A (en) | 2020-04-01 | 2020-04-01 | Monitoring method of oil-immersed transformer |
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| CN112698139B (en) * | 2020-12-28 | 2024-06-04 | 五邑大学 | Remote detection device for transformer |
| CN115929594B (en) * | 2022-12-28 | 2024-02-09 | 山东泰展机电科技股份有限公司 | Air circulation cooling device of automobile air pump and circulation cooling method thereof |
| CN117116619B (en) * | 2023-10-23 | 2024-01-05 | 内蒙古北科交大机器人有限公司 | Transformer and power distribution device with temperature measuring assembly |
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| DE4427748C1 (en) * | 1994-08-05 | 1996-02-29 | Peter Rusbuelt | Cleaning transformers contaminated with PCB |
| CN202564023U (en) * | 2012-04-17 | 2012-11-28 | 郑州赛奥电子股份有限公司 | On-line oil filtering system of oil-immersed transformer |
| CN103165263A (en) * | 2011-12-13 | 2013-06-19 | 河南省电力公司南阳供电公司 | Transformer on-load tap-changer real-time online oil purifier |
| CN204289028U (en) * | 2014-11-28 | 2015-04-22 | 国家电网公司 | The online oil changing device of a kind of Novel oil-immersed transformer |
| CN209173452U (en) * | 2018-08-10 | 2019-07-30 | 上海石化安东混凝土有限公司 | A kind of filter press |
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2020
- 2020-04-01 CN CN202110724501.4A patent/CN113436846A/en active Pending
- 2020-04-01 CN CN202010247753.8A patent/CN111312484B/en active Active
- 2020-04-01 CN CN202110724472.1A patent/CN113506677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4427748C1 (en) * | 1994-08-05 | 1996-02-29 | Peter Rusbuelt | Cleaning transformers contaminated with PCB |
| CN103165263A (en) * | 2011-12-13 | 2013-06-19 | 河南省电力公司南阳供电公司 | Transformer on-load tap-changer real-time online oil purifier |
| CN202564023U (en) * | 2012-04-17 | 2012-11-28 | 郑州赛奥电子股份有限公司 | On-line oil filtering system of oil-immersed transformer |
| CN204289028U (en) * | 2014-11-28 | 2015-04-22 | 国家电网公司 | The online oil changing device of a kind of Novel oil-immersed transformer |
| CN209173452U (en) * | 2018-08-10 | 2019-07-30 | 上海石化安东混凝土有限公司 | A kind of filter press |
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| CN113506677A (en) | 2021-10-15 |
| CN111312484A (en) | 2020-06-19 |
| CN113436846A (en) | 2021-09-24 |
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