CN213492142U - Intelligent dewatering device for transformer oiled paper insulation - Google Patents
Intelligent dewatering device for transformer oiled paper insulation Download PDFInfo
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- CN213492142U CN213492142U CN202021137214.0U CN202021137214U CN213492142U CN 213492142 U CN213492142 U CN 213492142U CN 202021137214 U CN202021137214 U CN 202021137214U CN 213492142 U CN213492142 U CN 213492142U
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Abstract
The utility model discloses an insulating intelligent water trap of transformer oil paper relates to transformer technical field, including outside circulation system, inside circulation system and on-line control system, outside circulation system includes the transformer tank, returns oil pipe way and advances oil pipe way, has solved the technical problem of the online dewatering of transformer, the utility model discloses do not have the filter action to transformer main gas composition and oil molecule, do not need heating and evacuation moreover, do not produce disturbance and influence to the operation safety of transformer, the utility model discloses an integrated design supports on-the-spot installation, can conveniently drop into and withdraw from the transformer that is moving, oil feed and exhaust mode when fully considering the device start-up make things convenient for the change of molecular sieve dewatering material, can not produce secondary pollution to transformer insulating oil.
Description
Technical Field
The utility model relates to a transformer technical field, concretely relates to transformer oilpaper insulating intelligent water trap.
Background
The service life of the transformer is mainly determined by the service life of an insulation system, the insulation material of the transformer mainly comprises insulation oil and insulation paper boards, the fiber insulation paper mainly determines the effective service life of the transformer, and three major factors influencing the service life of the insulation paper of the transformer are moisture, oxygen and temperature, wherein the moisture has the most obvious effect.
In the operation of the transformer, except for micro leakage and moisture residue in installation, the moisture content in oil is increased by insulation paper cracking and oil oxidation, and the moisture content exceeding 0.1% results in a sharp increase in dielectric loss factor, a significant decrease in electrical strength and a significant acceleration in the aging process.
In order to better maintain the transformer and prolong the service life of the transformer, the insulation system can be renovated and repaired, and impurities, acid, gas and moisture in oil are removed by adopting vacuum oil filtration, hot oil circulation, low-frequency heating or gas phase drying.
Problems and disadvantages of the prior art
(1) The traditional dewatering mode has the possibility of excessive drying, and the high temperature and pressure can accelerate the insulation aging of the oiled paper;
(2) the traditional water removal mode needs transformer power failure and manual monitoring of the water removal process, so that the power production is influenced, and the cost is high;
(3) the traditional water removal mode can affect the gas content in oil, so that the misjudgment on the health condition of the transformer is caused;
(4) the traditional water removal mode needs vacuum equipment, possibly damages other components and has insufficient safety;
since the mechanical strength of the insulation material is affected by high temperature and pressure, the drying method using heating and vacuum treatment may accelerate the aging of the insulation paper and transformer oil under poor control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an insulating intelligent water trap of transformer oilpaper has solved the technical problem of the online dewatering of transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an intelligent transformer oil paper insulation water removal device comprises an external circulation system, an internal circulation system and an online control system, wherein the external circulation system comprises a transformer oil tank, an oil return pipeline and an oil inlet pipeline; the internal circulating system comprises an oil inlet pipe, an oil outlet pipe, an oil inlet, an oil return port, an oil inlet valve, an oil return valve, a throttle valve, a filter tank, an oil filter, an exhaust tank, a micro-water sensor, an oil flow indicator and an oil pump, and the online control system comprises a control unit;
an oil return pipeline and an oil inlet pipeline of the external circulating system are respectively connected with an oil inlet and an oil return port of the internal circulating system;
an oil return valve is arranged on the oil return pipeline, and an oil inlet valve is arranged on the oil inlet pipeline;
the oil inlet is connected with the filter tank through an oil inlet pipe, and the filter tank is also connected with the oil return port through an oil return pipe;
an exhaust tank and an oil filter are arranged on the oil return port;
the oil inlet is provided with a micro-water sensor, an oil flow indicator, an oil pump and a throttle valve;
the oil inlet valve, the oil return valve, the throttle valve, the micro-water sensor, the oil flow indicator and the oil pump are all electrically connected with the control unit.
Preferably, the internal circulation system comprises a plurality of filter tanks, and the internal circulation system further comprises an internal circulation oil pipe, and the filter tanks are connected through the internal circulation oil pipe.
Preferably, the oil filter adopts a nano molecular sieve water removal material for filtering water in the transformer oil.
The utility model relates to a transformer oil paper insulation intelligent dewatering device, which solves the technical problem of on-line dewatering of a transformer, has no filtering function on main gas components and oil molecules of the transformer, does not need heating and vacuumizing, and does not generate disturbance and influence on the operation safety of the transformer, the utility model adopts an integrated design, supports on-site installation, can conveniently put in and withdraw from the transformer in operation, fully considers the oil inlet and exhaust mode when the device is started, facilitates the replacement of molecular sieve dewatering materials, does not generate secondary pollution on transformer insulating oil, supports on-line monitoring of temperature and micro-water content, supports closed-loop control by measuring water content and temperature, realizes the dynamic balance of water content, supports abnormal protection function by the device, comprises pipeline leakage protection, equipment temperature control and protection, controlling means self-checking and circuit protection, the utility model discloses water trap automatic shutdown when the oil temperature risees unusually to the protection nano-material does not receive high temperature to destroy.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic diagram of the system architecture of the present invention;
in the figure: the device comprises a transformer oil tank 3, an oil return valve 4, an oil inlet valve 5, a micro-water sensor 7, an oil flow indicator 8, a filter tank 9, a control unit 10, an oil filter 11, an exhaust tank 12 and a throttle valve 13.
Detailed Description
The transformer oil paper insulation intelligent water removal device shown in fig. 1-2 comprises an external circulation system, an internal circulation system and an online control system, wherein the external circulation system comprises a transformer oil tank 3, an oil return pipeline and an oil inlet pipeline; the internal circulation system comprises an oil inlet pipe, an oil outlet pipe, an oil inlet, an oil return port, an oil inlet valve 5, an oil return valve 4, a throttle valve 13, a filter tank 9, an oil filter 11, an exhaust tank 12, a micro-water sensor 7, an oil flow indicator 8 and an oil pump, and the online control system comprises a control unit 10;
an oil return pipeline and an oil inlet pipeline of the external circulating system are respectively connected with an oil inlet and an oil return port of the internal circulating system;
an oil return valve 4 is arranged on the oil return pipeline, and an oil inlet valve 5 is arranged on the oil inlet pipeline;
the oil inlet is connected with the filter tank 9 through an oil inlet pipe, and the filter tank 9 is also connected with an oil return port through an oil return pipe;
an exhaust tank 12 and an oil filter 11 are arranged on the oil return port;
a micro-water sensor 7, an oil flow indicator 8, an oil pump and a throttle valve 13 are arranged on the oil inlet;
the oil inlet valve 5, the oil return valve 4, the throttle valve 13, the micro-water sensor 7, the oil flow indicator 8 and the oil pump are all electrically connected with the control unit 10.
Preferably, the number of the filter tanks 9 of the internal circulation system is multiple, the internal circulation system further comprises an internal circulation oil pipe, and the filter tanks 9 are connected through the internal circulation oil pipe.
Preferably, the oil filter 11 employs a nano-molecular sieve water removal material for filtering water in the transformer oil.
In this embodiment, the oil filter 11 is made of a synthetic crystalline silicate material, and the porous material structure of the material can successfully filter small molecular water molecules, but has no filtering effect on main gas components and oil molecules of the transformer, and does not need to be heated and vacuumized, and does not disturb and affect the operation safety of the transformer.
During the use, the user operates a transformer oil paper insulation intelligence water trap according to following step:
step S1: opening the vent port of the vent canister 12;
step S2: keeping the oil return valve 4 closed, slightly opening the oil inlet valve 5, and gradually exhausting to ensure that all gas in the pipeline of the device is exhausted;
step S3: closing the vent port of the vent canister 12;
step S4: opening the oil return valve 4;
step S5: opening the oil inlet valve 5;
step S6: starting the oil pump, and confirming that the oil flow indicator 8 displays normal oil flow;
step S7: monitoring the normal operation of the dewatering device for 20 minutes to ensure that no oil leakage exists and no other abnormal phenomena exist;
step S8: automatic control is put into;
step S9: when the water removing tank and the oil filter 11 are replaced, the oil pump is stopped firstly, the oil inlet valve 5 is closed, the oil return valve 4 is closed, then pipe holes at two ends of the water removing tank and the oil filter 11 are closed for replacement, and the water removing tank and the oil filter are put into operation again according to the working flow after the replacement is finished;
step S10: when the automatic operation is carried out, the main control unit of the water removal device can acquire state parameters of the system, such as water content, temperature, pressure and the like through the sensor.
As shown in fig. 2, the on-line control system is composed of a control unit 10, a micro water sensor 7 (front part of the canister) located on the left side of a throttle valve 13, a micro water sensor 7 (rear part of the canister) located in an exhaust tank 12, and a pump for controlling the flow of oil.
The control unit 10 is a single chip microcomputer or an ARM controller or a PLC controller.
The on-line control system realizes the flow control function of the on-line water removal function and monitors the micro-water content in the oil before and after entering the water removal tank.
A transformer oil paper insulating intelligence water trap, the technical problem of the online dewatering of transformer has been solved, the utility model discloses an integrated design supports the field installation, can conveniently drop into and withdraw from the transformer of operation, oil feed and exhaust mode when fully considering the device start make things convenient for the change of molecular sieve dewatering material, can not produce secondary pollution to transformer insulating oil, the utility model discloses support the on-line monitoring of temperature and little water content, water content and temperature measurement support closed-loop control, realize the dynamic balance of water content, the device supports unusual protect function, including pipeline leakage protection, equipment temperature control and protection, controlling means self-checking and circuit protection, the utility model discloses water trap automatic shutdown work when the oil temperature rises unusually to protection nano-material does not receive high temperature to destroy.
Claims (3)
1. The utility model provides an insulating intelligent water trap of transformer oilpaper which characterized in that: the online control system comprises an external circulating system, an internal circulating system and an online control system, wherein the external circulating system comprises a transformer oil tank, an oil return pipeline and an oil inlet pipeline; the internal circulating system comprises an oil inlet pipe, an oil outlet pipe, an oil inlet, an oil return port, an oil inlet valve, an oil return valve, a throttle valve, a filter tank, an oil filter, an exhaust tank, a micro-water sensor, an oil flow indicator and an oil pump, and the online control system comprises a control unit;
an oil return pipeline and an oil inlet pipeline of the external circulating system are respectively connected with an oil inlet and an oil return port of the internal circulating system;
an oil return valve is arranged on the oil return pipeline, and an oil inlet valve is arranged on the oil inlet pipeline;
the oil inlet is connected with the filter tank through an oil inlet pipe, and the filter tank is also connected with the oil return port through an oil return pipe;
an exhaust tank and an oil filter are arranged on the oil return port;
the oil inlet is provided with a micro-water sensor, an oil flow indicator, an oil pump and a throttle valve;
the oil inlet valve, the oil return valve, the throttle valve, the micro-water sensor, the oil flow indicator and the oil pump are all electrically connected with the control unit.
2. The intelligent transformer oil paper insulation water removing device according to claim 1, characterized in that: the internal circulation system filter the jar and be a plurality of, internal circulation system still includes internal circulation oil pipe, filter and connect through internal circulation oil pipe between the jar.
3. The intelligent transformer oil paper insulation water removing device according to claim 1, characterized in that: the oil filter adopts a nano molecular sieve water removal material and is used for filtering water in transformer oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137214.0U CN213492142U (en) | 2020-06-18 | 2020-06-18 | Intelligent dewatering device for transformer oiled paper insulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137214.0U CN213492142U (en) | 2020-06-18 | 2020-06-18 | Intelligent dewatering device for transformer oiled paper insulation |
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| CN213492142U true CN213492142U (en) | 2021-06-22 |
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| CN202021137214.0U Active CN213492142U (en) | 2020-06-18 | 2020-06-18 | Intelligent dewatering device for transformer oiled paper insulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814468A (en) * | 2022-12-08 | 2023-03-21 | 国网重庆市电力公司电力科学研究院 | Transformer oil paper insulation dewatering device and use method thereof |
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2020
- 2020-06-18 CN CN202021137214.0U patent/CN213492142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814468A (en) * | 2022-12-08 | 2023-03-21 | 国网重庆市电力公司电力科学研究院 | Transformer oil paper insulation dewatering device and use method thereof |
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