CN104835628A - Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof - Google Patents
Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof Download PDFInfo
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- CN104835628A CN104835628A CN201510202175.5A CN201510202175A CN104835628A CN 104835628 A CN104835628 A CN 104835628A CN 201510202175 A CN201510202175 A CN 201510202175A CN 104835628 A CN104835628 A CN 104835628A
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- seal closure
- glue
- mutual inductor
- frequency conversion
- injecting
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Abstract
The invention relates to an electrical high voltage oil-filled mutual inductor leakage blocking device using a sealing cover and an application method thereof. The device comprises an oil-filled mutual inductor, the sealing cover, a glue injecting device and a microprocessor. The oil-filler mutual inductor comprises a mutual inductor oil storage tank for storing transformer oil, and there is a leakage point in the mutual inductor oil storage tank. The open edge of the sealing cover and the outer side wall of the mutual inductor oil storage tank around the leakage point are tightly bonded via a binder to form a sealing chamber. One end of the glue injecting device is connected with the sealing cover such that sealant can be injected into the sealing chamber to block the leakage point, and the other end of the glue injecting device is electrically connected with the microprocessor. The device is capable of carrying out online in-oil leakage blocking without ignition and electrowelding. The sealant fills the new sealing chamber between the leakage point of the oil-filled mutual inductor and the sealing cover via a glue injecting tube. The sealing chamber is filled up with the sealant and the pressure is maintained at a certain value, so that the leakage point is blocked with the sealant, and the leakage is completely stopped after the sealant is solidified.
Description
Technical field
The invention belongs to oil-filled mutual inductor leakage of oil process field, particularly use power high voltage oil-filled mutual inductor device for plugging and the using method thereof of seal closure.
Background technology
On instrument transformer wall owing to manufacturing welding, mounting process is bad, there is the defects such as sand holes, weld seam, crack, in long-time running, instrument transformer interior oil seepage can be caused, traditional method, after being had a power failure by oil-filled mutual inductor, oil in oil-filled mutual inductor is taken out light, adopts electric welding process.
Summary of the invention
In view of this, the object of this invention is to provide a kind of power high voltage oil-filled mutual inductor device for plugging and the using method thereof of using seal closure, use this device can carry out fast blockage process at tape oil, without the need to electric welding igniting, have huge advantage compared with traditional leak stopping mode.
The present invention adopts following scheme to realize: the power high voltage oil-filled mutual inductor device for plugging using seal closure, comprises oil-filled mutual inductor, seal closure, glue filling device and microprocessor; Described oil-filled mutual inductor comprises one in order to store the instrument transformer fuel reserve tank of transformer oil, there is breakthrough in described instrument transformer fuel reserve tank, the opening edge of described seal closure along with described breakthrough around the lateral wall of instrument transformer fuel reserve tank form a gas-tight silo by binding agent tight bond; One end of described glue filling device is connected with described seal closure, and in order to inject fluid sealant to the gas-tight silo formed and to block breakthrough, the other end and the described microprocessor of described glue filling device are electrical connected.
Further, the top of described seal closure and bottom are respectively provided with a valve, and the top of described seal closure is provided with vent valve, and the bottom of described seal closure is provided with rubber injecting valve; One end of described rubber injecting valve is connected to one end of injected rubber hose in glue filling device, and when glue filling device works, described rubber injecting valve is opened, in order to conducting injecting glue path; When glue filling device works, described vent valve is opened, in order to discharge the gas in seal closure when injecting glue.
Further, described glue filling device comprises with the frequency conversion glue injection machine of variable frequency control, safety valve, pressure sensor and injected rubber hose; One end of described injected rubber hose is connected with the rubber injecting valve on described seal closure, the other end of described injected rubber hose is connected to described frequency conversion glue injection machine and is provided with described pressure sensor, described frequency conversion glue injection machine and pressure sensor are electrically connected to described microprocessor, and the rubber injecting valve of the fluid sealant in described frequency conversion glue injection machine on described injected rubber hose and seal closure injects in seal closure; Described frequency conversion glue injection machine is provided with described safety valve, opens when the injection pressure value in order to detect when pressure sensor exceedes the safe injection pressure value of setting and carry out safety relief.
Further, described microprocessor receives the injection pressure value that in glue filling device, pressure sensor sends, and according to the injection pressure control program pre-set, the frequency of automatic control frequency conversion glue injection machine, if the injection pressure value that described injection pressure control program is described microprocessor to be received is when exceeding the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when the injection pressure value that described microprocessor receives reaches the terminal injection pressure value of setting, close described rubber injecting valve, frequency conversion glue injection machine and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
The present invention adopts following methods to realize: the using method using the power high voltage oil-filled mutual inductor device for plugging of seal closure, comprises the following steps:
Step S1: according to the size of instrument transformer fuel reserve tank breakthrough measuring oil-filled mutual inductor, provides the seal closure that can cover breakthrough completely;
Step S2: the opening edge of seal closure is formed a gas-tight silo along on the lateral wall being bonded in instrument transformer fuel reserve tank by binding agent, the breakthrough on instrument transformer fuel reserve tank can cover by described seal closure completely;
Step S3: rubber injecting valve one end of the injected rubber hose in glue filling device being connected to seal closure bottom, the other end of described injected rubber hose is connected to frequency conversion glue injection machine;
Step S4: open the rubber injecting valve of seal closure bottom and the vent valve on seal closure top;
Step S5: open microprocessor and frequency conversion glue injection machine, described Microprocessor S3C44B0X frequency conversion glue injection machine starts injecting glue work, in the gas-tight silo that the fluid sealant in described frequency conversion glue injection machine is formed by described injected rubber hose injection instrument transformer fuel reserve tank lateral wall and seal closure;
Step S6: in injecting glue process, pressure sensor gathers the injection pressure value on injected rubber hose, described microprocessor receives the injection pressure value that pressure sensor gathers, if when described injection pressure value exceedes the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when described injection pressure value reaches the terminal injection pressure value of setting, close described rubber injecting valve, frequency conversion glue injection machine and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
Further, in the injecting glue process in described step S6, close vent valve when the vent valve on seal closure top starts to emit plastic emitting, now frequency conversion glue injection machine proceeds injecting glue work.
Further, in the injecting glue process in described step S6, if when the injection pressure value that pressure sensor detects exceedes the safe injection pressure value of setting, the safety valve that described frequency conversion glue injection machine is installed is opened and is carried out safety relief.
Compared to prior art, the present invention has following beneficial effect: the present invention surrounds also tight bond by seal closure and covers the breakthrough of oil-filled mutual inductor, the novel sealing storehouse formed between oil-filled mutual inductor breakthrough and seal closure, then by frequency conversion glue injection machine, fluid sealant is injected fluid sealant through injected rubber hose the novel sealing storehouse formed between oil-filled mutual inductor breakthrough and seal closure, and be full of, keep certain pressure, fluid sealant is blocked breakthrough, after adhesive curing to be sealed, thoroughly handle seepage well.The present invention and traditional leak stopping mode need take out in light instrument transformer to adopt after oil compared with the mode of electric welding mending-leakage again huge advantage.
Accompanying drawing explanation
Fig. 1 is the power high voltage oil-filled mutual inductor device for plugging scheme of installation using seal closure in the present invention.
Fig. 2 is power high voltage oil-filled mutual inductor schematic diagram in the present invention.
Fig. 3 is power high voltage oil-filled mutual inductor breakthrough leakage of oil schematic diagram in the present invention.
Fig. 4 is seal closure schematic diagram in the present invention.
Fig. 5 is the power high voltage oil-filled mutual inductor device for plugging course of work schematic diagram using seal closure in the present invention.
Fig. 6 is that in the present invention, the leak stopping of power high voltage oil-filled mutual inductor breakthrough completes schematic diagram.
Fig. 7 is that in the present invention, microprocessor, according to pressure sensor feedback pressure value, controls frequency conversion glue injection machine operation principle block diagram automatically.
Label declaration: 1 is frequency conversion glue injection machine; 2 is safety valve; 3 is pressure sensor; 4 is injected rubber hose; 5 is seal closure; 6 is binding agent; 7 is rubber injecting valve; 8 is vent valve; 9 is fluid sealant; 10 is oil-filled mutual inductor; 11 is instrument transformer fuel reserve tank; 12 is transformer oil; 13 is the breakthrough of instrument transformer fuel reserve tank.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The power high voltage oil-filled mutual inductor device for plugging of the utilization seal closure that the present embodiment provides, as shown in Figure 1, comprises oil-filled mutual inductor 10, seal closure 5, glue filling device and microprocessor; Described oil-filled mutual inductor comprises one in order to store the instrument transformer fuel reserve tank 11 of transformer oil 12, there is breakthrough 13 in described instrument transformer fuel reserve tank 11, the opening edge of described seal closure 5 along with described breakthrough 13 around the lateral wall of instrument transformer fuel reserve tank form a gas-tight silo by binding agent 6 tight bond; One end of described glue filling device is connected with described seal closure 5, and in order to inject fluid sealant 9 to the gas-tight silo formed and to block breakthrough 13, the other end and the described microprocessor of described glue filling device are electrical connected.
In the present embodiment, shown in Fig. 2 and Fig. 3, there is breakthrough 13 in the instrument transformer fuel reserve tank of the power high voltage oil-filled mutual inductor in this device, and the transformer oil 12 in instrument transformer fuel reserve tank 11 leaks out from breakthrough 13.
In the present embodiment, as shown in Figure 4, the top of described seal closure 5 and bottom are respectively provided with a valve, and the top of described seal closure is provided with vent valve 8, and the bottom of described seal closure is provided with rubber injecting valve 7; One end of described rubber injecting valve 7 is connected to one end of injected rubber hose 4 in glue filling device, and when glue filling device works, described rubber injecting valve 7 is opened, in order to conducting injecting glue path; When glue filling device works, described vent valve 8 is opened, in order to discharge the gas in seal closure 5 when injecting glue.
In the present embodiment, described glue filling device comprises with the frequency conversion glue injection machine 1 of variable frequency control, safety valve 2, pressure sensor 3 and injected rubber hose 4; One end of described injected rubber hose 4 is connected with the rubber injecting valve 7 on described seal closure 5, the other end of described injected rubber hose 4 is connected to described frequency conversion glue injection machine 1 and is provided with described pressure sensor 3, described frequency conversion glue injection machine 1 is electrically connected to described microprocessor with pressure sensor 3, and the fluid sealant 9 in described frequency conversion glue injection machine 1 injects in seal closure 5 through described injected rubber hose 4 with the rubber injecting valve 7 on seal closure 5; Described frequency conversion glue injection machine 1 is provided with described safety valve 2, carries out safety relief in order to open when the injection pressure value that pressure sensor 3 detects exceedes the safe injection pressure value of setting.
In the present embodiment, described microprocessor receives the injection pressure value that in glue filling device, pressure sensor 3 sends, and the frequency of frequency conversion glue injection machine 1 is automatically controlled according to the injection pressure control program pre-set, if the injection pressure value that described injection pressure control program is described microprocessor to be received is when exceeding the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine 1 reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when the injection pressure value that described microprocessor receives reaches the terminal injection pressure value of setting, close described rubber injecting valve 7, frequency conversion glue injection machine 1 and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
In the present embodiment, use the using method of the power high voltage oil-filled mutual inductor device for plugging of seal closure, see shown in Fig. 5, Fig. 6 and Fig. 7, comprise the following steps:
Step S1: according to the size of instrument transformer fuel reserve tank breakthrough 13 measuring oil-filled mutual inductor, provides the seal closure 5 that can cover breakthrough completely;
Step S2: the opening edge of seal closure 5 is formed a gas-tight silo along on the lateral wall being bonded in instrument transformer fuel reserve tank 11 by binding agent 6, the breakthrough 13 on instrument transformer fuel reserve tank can cover by described seal closure 5 completely;
Step S3: the rubber injecting valve 7 one end of the injected rubber hose 4 in glue filling device being connected to seal closure bottom, the other end of described injected rubber hose 4 is connected to frequency conversion glue injection machine 1;
Step S4: open the rubber injecting valve 7 of seal closure bottom and the vent valve 8 on seal closure top;
Step S5: open microprocessor and frequency conversion glue injection machine 1, described Microprocessor S3C44B0X frequency conversion glue injection machine 1 starts injecting glue work, and the fluid sealant 9 in described frequency conversion glue injection machine injects in the gas-tight silo that instrument transformer fuel reserve tank lateral wall and seal closure 5 formed by described injected rubber hose 4;
Step S6: in injecting glue process, pressure sensor 3 gathers the injection pressure value on injected rubber hose 4, described microprocessor receives the injection pressure value that pressure sensor gathers, if when described injection pressure value exceedes the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine 1 reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when described injection pressure value reaches the terminal injection pressure value of setting, close described rubber injecting valve 7, frequency conversion glue injection machine 1 and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
In the present embodiment, preferably, before this device carries out leak stopping, staff can field observation breakthrough crack situation, as slotted opening is comparatively large, first with the instrument such as iron hammer, pliers, the breakthrough 13 after little for crack riveting again after little according to riveting should be carried out dimensional measurement.Especially, in injecting glue process, when in seal closure 5 without pressure or pressure low time, glue injection machine is exerted oneself greatly, injecting glue is fast, along with the carrying out of injecting glue work, when fluid sealant 9 will be full of seal closure, particularly when fluid sealant 9 is full of seal closure completely, injection pressure raises rapidly, now Microprocessor S3C44B0X frequency conversion glue injection machine 1 carries out releiving injecting glue to remain a little more than the pressure of oil pressure in oil-filled mutual inductor body, until injecting glue end-of-job, now fluid sealant 9 injects through injected rubber hose 4 and is full of the gas-tight silo formed between oil-filled mutual inductor breakthrough and seal closure 5, the fluid sealant 9 be full of keeps certain pressure will block breakthrough 13, after adhesive curing to be sealed, thoroughly can handle seepage well.
In the present embodiment, in the injecting glue process in described step S6, close vent valve when the vent valve 8 on seal closure top starts to emit plastic emitting, now frequency conversion glue injection machine 1 proceeds injecting glue work.
In the present embodiment, in the injecting glue process in described step S6, if when the injection pressure value that pressure sensor detects exceedes the safe injection pressure value of setting, the safety valve 2 that described frequency conversion glue injection machine 1 is installed is opened and is carried out safety relief.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (7)
1. use the power high voltage oil-filled mutual inductor device for plugging of seal closure, it is characterized in that: comprise oil-filled mutual inductor, seal closure, glue filling device and microprocessor; Described oil-filled mutual inductor comprises one in order to store the instrument transformer fuel reserve tank of transformer oil, there is breakthrough in described instrument transformer fuel reserve tank, the opening edge of described seal closure along with described breakthrough around the lateral wall of instrument transformer fuel reserve tank form a gas-tight silo by binding agent tight bond; One end of described glue filling device is connected with described seal closure, and in order to inject fluid sealant to the gas-tight silo formed and to block breakthrough, the other end and the described microprocessor of described glue filling device are electrical connected.
2. the power high voltage oil-filled mutual inductor device for plugging of utilization seal closure according to claim 1, it is characterized in that: the top of described seal closure and bottom are respectively provided with a valve, the top of described seal closure is provided with vent valve, and the bottom of described seal closure is provided with rubber injecting valve; One end of described rubber injecting valve is connected to one end of injected rubber hose in glue filling device, and when glue filling device works, described rubber injecting valve is opened, in order to conducting injecting glue path; When glue filling device works, described vent valve is opened, in order to discharge the gas in seal closure when injecting glue.
3. the power high voltage oil-filled mutual inductor device for plugging of utilization seal closure according to claim 1, is characterized in that: described glue filling device comprises with the frequency conversion glue injection machine of variable frequency control, safety valve, pressure sensor and injected rubber hose; One end of described injected rubber hose is connected with the rubber injecting valve on described seal closure, the other end of described injected rubber hose is connected to described frequency conversion glue injection machine and is provided with described pressure sensor, described frequency conversion glue injection machine and pressure sensor are electrically connected to described microprocessor, and the rubber injecting valve of the fluid sealant in described frequency conversion glue injection machine on described injected rubber hose and seal closure injects in seal closure; Described frequency conversion glue injection machine is provided with described safety valve, opens when the injection pressure value in order to detect when pressure sensor exceedes the safe injection pressure value of setting and carry out safety relief.
4. the power high voltage oil-filled mutual inductor device for plugging of utilization seal closure according to claim 1, it is characterized in that: described microprocessor receives the injection pressure value that in glue filling device, pressure sensor sends, and according to the injection pressure control program pre-set, the frequency of automatic control frequency conversion glue injection machine, if the injection pressure value that described injection pressure control program is described microprocessor to be received is when exceeding the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when the injection pressure value that described microprocessor receives reaches the terminal injection pressure value of setting, close described rubber injecting valve, frequency conversion glue injection machine and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
5. the using method using the power high voltage oil-filled mutual inductor device for plugging of seal closure as claimed in claim 1, is characterized in that comprising the following steps:
Step S1: according to the size of instrument transformer fuel reserve tank breakthrough measuring oil-filled mutual inductor, provides the seal closure that can cover breakthrough completely;
Step S2: the opening edge of seal closure is formed a gas-tight silo along on the lateral wall being bonded in instrument transformer fuel reserve tank by binding agent, the breakthrough on instrument transformer fuel reserve tank can cover by described seal closure completely;
Step S3: rubber injecting valve one end of the injected rubber hose in glue filling device being connected to seal closure bottom, the other end of described injected rubber hose is connected to frequency conversion glue injection machine;
Step S4: open the rubber injecting valve of seal closure bottom and the vent valve on seal closure top;
Step S5: open microprocessor and frequency conversion glue injection machine, described Microprocessor S3C44B0X frequency conversion glue injection machine starts injecting glue work, in the gas-tight silo that the fluid sealant in described frequency conversion glue injection machine is formed by described injected rubber hose injection instrument transformer fuel reserve tank lateral wall and seal closure;
Step S6: in injecting glue process, pressure sensor gathers the injection pressure value on injected rubber hose, described microprocessor receives the injection pressure value that pressure sensor gathers, if when described injection pressure value exceedes the injection pressure value of setting, described Microprocessor S3C44B0X frequency conversion glue injection machine reduces injecting glue frequency, reduces and exerts oneself and slow injecting glue; If when described injection pressure value reaches the terminal injection pressure value of setting, close described rubber injecting valve, frequency conversion glue injection machine and microprocessor, and remove injected rubber hose, injecting glue end-of-job.
6. the using method of the power high voltage oil-filled mutual inductor device for plugging of utilization seal closure according to claim 5, it is characterized in that: in the injecting glue process in described step S6, close vent valve when the vent valve on seal closure top starts to emit plastic emitting, now frequency conversion glue injection machine proceeds injecting glue work.
7. the using method of the power high voltage oil-filled mutual inductor device for plugging of utilization seal closure according to claim 5, it is characterized in that: in the injecting glue process in described step S6, if when the injection pressure value that pressure sensor detects exceedes the safe injection pressure value of setting, the safety valve that described frequency conversion glue injection machine is installed is opened and is carried out safety relief.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202175.5A CN104835628B (en) | 2015-04-27 | 2015-04-27 | With the power high voltage oil-filled mutual inductor device for plugging and its application method of seal closure |
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| CN201510202175.5A CN104835628B (en) | 2015-04-27 | 2015-04-27 | With the power high voltage oil-filled mutual inductor device for plugging and its application method of seal closure |
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| CN104835628B CN104835628B (en) | 2017-07-07 |
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Cited By (2)
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| CN104821253A (en) * | 2015-05-20 | 2015-08-05 | 国家电网公司 | Online plugging device for power SF6 high-voltage circuit breaker with air-tight chamber and method |
| CN111412283A (en) * | 2020-03-31 | 2020-07-14 | 鞍钢股份有限公司 | Method for blocking leakage point of sulfuric acid container under pressure |
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| CN111412283A (en) * | 2020-03-31 | 2020-07-14 | 鞍钢股份有限公司 | Method for blocking leakage point of sulfuric acid container under pressure |
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| CN104835628B (en) | 2017-07-07 |
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