CN104103431B - External pressurizing oil supplementing device and method for power capacitor - Google Patents
External pressurizing oil supplementing device and method for power capacitor Download PDFInfo
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- CN104103431B CN104103431B CN201410327243.6A CN201410327243A CN104103431B CN 104103431 B CN104103431 B CN 104103431B CN 201410327243 A CN201410327243 A CN 201410327243A CN 104103431 B CN104103431 B CN 104103431B
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- power capacitor
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- insulating oil
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Abstract
The invention discloses an external pressurizing oil supplementing device for a power capacitor. The device comprises a frame, an oil injection module and a stretching module. The oil injection module injects insulation oil into the power capacitor in a pressurizing mode, and meanwhile the stretching module stretches/compresses the box wall of the power capacitor to control the volume of the power capacitor to enable the quantity of the insulation oil injected into the power capacitor under different temperature conditions to be identical. An external pressurizing oil supplementing method for the power capacitor is further disclosed. The method includes calculating the quantity of the insulation oil required to be injected into the power capacitor according to the current temperature condition and the expansion coefficients of the insulation oil; controlling the volume of the power capacitor according to the quantity of the required insulation oil by stretching/compressing the box wall of the power capacitor; injecting the insulation oil into the power capacitor in the pressurizing mode; sealing an oil injecting hole of the power capacitor and stopping stretching/compressing of the power capacitor.
Description
Technical field
The present invention relates to the dedicated manufacturing equipment of capacitor and method and technology field, it is used for electric capacitor particularly to a kind of
The device and method of device tank external pressurized repairing.
Background technology
The power capacitor outer impregnation process of tank to be carried out in process of production, its objective is to make insulating oil ooze to greatest extent
Thoroughly arrive in the gap of power capacitor inner member.Simultaneously as the characteristic of expanding with heat and contract with cold of itself, need by extending nature leaching
The time of stain, make product internal temperature decline, thus ensure interiors of products insulating oil oil mass abundant.
As shown in figure 1, the handling process commonly used at present is by unsealed electric capacitor after vacuum drying impregnation process
Device 2 is positioned under normal atmospheric conditions, is placed by long, makes insulating oil naturally be impregnated into electric capacitor from oiling groove 1
Inside device 2.Power capacitor 2, in natural dipping process, is affected by ambient temperature, when ambient temperature is relatively low, insulating oil
Viscosity is larger, and the speed of dipping is slow, and dipping effect is poor, and when ambient temperature is higher, the density of insulating oil is less, and volume is larger, electricity
Power capacitor seals at this temperature, after ambient temperature reduces, can lead to capacitor internal because of the volume-diminished of insulating oil
Oil starvation, in addition, being affected by ambient humidity, unsealed power capacitor is placed under normal atmospheric conditions for a long time, absolutely
Edge oil is contacted for a long time with air and the micro-moisture of oil can be led to increase and affect the insulating properties of insulating oil, and then affects electricity
The electric property of power capacitor.
Content of the invention
The present invention is directed to deficiencies of the prior art, there is provided a kind of power capacitor tank external pressurized repairing dress
Put.The present invention is achieved through the following technical solutions:
A kind of power capacitor tank external pressurized recharging oil device, comprising:
Frame, for placing power capacitor;
Oiling module, is injected insulating oil in power capacitor by way of pressurization;
Flexible module, is arranged in frame, and is detachably connected with the tank wall of power capacitor, in order to stretching/compressing electricity
The tank wall of power capacitor;
Wherein, under repairing state, the tank wall of flexible module stretching/compressing power capacitor is to a preset range and solid
Fixed, in the state of repairing completes and seals, flexible module is disconnected with the tank wall of power capacitor.
Preferably, oiling module includes: leakproof fuel cell and oil pipe, oil pipe one end is connected with leakproof fuel cell, and the other end can
Dismounting connects the oil filler point of power capacitor.
Preferably, being included by way of pressurization: oiling module is located at certain altitude, the weight using insulating oil itself is produced
Raw pressure, or certain pressure is applied to the insulating oil in oiling module by pressurized equipment.
Preferably, flexible module includes: transfer tube and connector, connector is connected to transfer tube and power capacitor
Between, increase the lifting surface area of tank wall and the bonding strength of power capacitor.
Preferably, connector is connected by including absorption, viscosity is detachably connected on power capacitor by way of connecting
On tank wall.
Preferably, suction force range when connector is by way of absorption connects is in 1n to 5000n.
Preferably, the scope of the tank wall of flexible module stretching/compressing power capacitor is in -10mm to 50mm.
Preferably, insulating oil in oiling module injects pressure limit during power capacitor in 0kpa to 500kpa.
By this device, can be it is ensured that being inputted under any temperature conditionss in the production process of power capacitor
Insulating oil oil mass is equal and the moisture that avoids in insulating oil ingress of air, reduce and power capacitor oil starvation or absolutely occur
The excessive problem of edge oil, effectively prevent the follow-up work of the repairing to power capacitor.
The present invention still further provides a kind of power capacitor tank external pressurized oil supplement method.The present invention passes through following technical side
Case is realized:
A kind of power capacitor tank external pressurized oil supplement method, including step:
S1, calculate the insulation of required injection power capacitor according to the coefficient of expansion of current temperature conditionss and insulating oil
Oil mass;
S2, electric capacitor is controlled by way of the tank wall of stretching/compressing power capacitor according to required insulating oil oil mass
The volume of device;
S3, by pressurization by way of by insulating oil inject power capacitor in;
S4, power capacitor is sealed;
S5, the stretching/compressing to power capacitor for the stopping.
The power capacitor tank external pressurized oil supplement method being provided by the present invention, can be in the production process of power capacitor
In it is ensured that the oil mass of the insulating oil being inputted under any temperature conditionss is equal and avoid in insulating oil ingress of air
Moisture, shortens dip time, reduces and power capacitor oil starvation or the excessive problem of insulating oil, it is subsequently right to effectively prevent
The repairing work of power capacitor.
Brief description
Shown in Fig. 1 is the outer impregnation process schematic diagram of existing tank;
Shown in Fig. 2 is the structural representation of the present invention.
Specific embodiment
Below with reference to the accompanying drawing of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention
With discussion it is clear that a part of example of the only present invention as described herein, it is not whole examples, based on the present invention
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained on the premise of not making creative work
Example, broadly falls into protection scope of the present invention.
For the ease of the understanding to the embodiment of the present invention, make further below in conjunction with accompanying drawing taking specific embodiment as a example
Illustrate, and each embodiment does not constitute the restriction to the embodiment of the present invention.
As shown in Fig. 2 a kind of power capacitor tank external pressurized recharging oil device that the present embodiment provides, comprising: frame 3, note
Oily module (including 6 and 7) and flexible module (including 4,5), frame 3 is used for fixing and support power capacitor and flexible mould
Block, power capacitor is arranged in frame, and by flexible module come the tank wall of stretching/compressing power capacitor, oiling module is led to
Cross pressurization mode by insulating oil inject power capacitor in it is ensured that insulating oil will not reflux to oiling module.
The operation principle of the present invention is as follows:
Power capacitor is set up in frame, the tank wall of flexible module stretching/compressing power capacitor is to a default model
Enclose and maintain static, the tank wall of stretching/compressing power capacitor here specifically refers to a preset range, according to current temperature
The coefficient of expansion of degree situation and insulating oil calculates the insulating oil oil mass of required injection power capacitor, thus by stretching/pressure
The mode of the tank wall of contracting power capacitor controls the volume of power capacitor it is ensured that injection flow phase under different temperature conditionss
Same, the excessive or very few situation of insulating oil will not occur because of expanding with heat and contract with cold of insulating oil.Temperature, the coefficient of expansion of insulating oil
The scope of restrained stretching/compression needed for correspondence, technical staff can obtain according to experimental data, and the present invention does not repeat to this.Electricity
The material that the tank wall of power capacitor is adopted has necessarily elasticity in itself, but can not be excessive to its stretching/compressing, flexible mould
The scope of the tank wall of block stretching/compressing power capacitor (stretches out to 50mm in -10mm (i.e. inward compression 10mm)
50mm).
In the state of power capacitor stretching/compressing, oiling module by pressurization by way of to power capacitor inside
Oiling is it is preferred that insulating oil in oiling module injects pressure limit during power capacitor in 0kpa to 500kpa, Ke Yiyou
Effect increases impregnating speed, prevents insulating oil from flowing back.In the present embodiment, oiling module includes leakproof fuel cell 7 and oil pipe 6, leads to
Cross and leakproof fuel cell 7 is promoted to certain altitude, the weight using insulating oil itself produces pressure, completes oiling of pressurizeing, and prevents absolutely
Edge oil backflow, and technical staff may also be employed pressurized equipment and directly carries out oiling to the mode of insulating oil pressurization, the present invention does not do
Limit.Here it is because that insulating oil has hydrophilic characteristic using leakproof fuel cell 7, be sealed against preventing insulating oil and in the air
Moisture merge, lead to its insulating properties reduce.
After the completion of repairing, the oil filler point of power capacitor is sealed, now, flexible module and with power capacitor
Tank wall can disconnect, and stops to its stretching/compressing.
In the present embodiment, flexible module may include that transfer tube 4 and connector 5, and connector 5 is connected to transfer tube 4
And between power capacitor, increase the lifting surface area of tank wall of power capacitor and bonding strength, prevent from damaging electric power electricity
Container.On the tank wall that connector 5 is connected by including absorption, viscosity is detachably connected on power capacitor by way of connecting.?
When by the way of absorption connecting, suction force range can be controlled in 1n to 5000n.
On this principle, the present invention separately provides a kind of power capacitor tank external pressurized oil supplement method, including step:
S1, calculate the insulation of required injection power capacitor according to the coefficient of expansion of current temperature conditionss and insulating oil
Oil mass;
S2, electric capacitor is controlled by way of the tank wall of stretching/compressing power capacitor according to required insulating oil oil mass
The volume of device, thus ensure that, under condition of different temperatures, the oil mass of the insulating oil in power capacitor is identical;
S3, by pressurization by way of by insulating oil inject power capacitor in, increase impregnating speed;
S4, the oil filler point to power capacitor seal;
S5, the stretching/compressing to power capacitor for the stopping.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (7)
1. a kind of power capacitor tank external pressurized recharging oil device is it is characterised in that include:
Frame, for placing power capacitor;
Insulating oil is injected in described power capacitor, described oiling module includes by way of pressurization by oiling module: sealing
Fuel tank and oil pipe, described oil pipe one end is connected with described leakproof fuel cell, and the other end is detachably connected described power capacitor
Oil filler point;
Flexible module, is arranged in described frame, and is detachably connected with the tank wall of described power capacitor, in order to stretch/to press
Contract the tank wall of described power capacitor, and described flexible module includes: transfer tube and connector, described connector is connected to described
Between transfer tube and described power capacitor, increase the lifting surface area of tank wall and the bonding strength of described power capacitor;
Wherein, under repairing state, the tank wall of power capacitor described in described flexible module stretching/compressing is to a preset range simultaneously
Fixing, in the state of repairing completes and seals, described flexible module is disconnected with the tank wall of described power capacitor.
2. power capacitor tank external pressurized recharging oil device according to claim 1 it is characterised in that described by pressurization
Mode includes: described oiling module is located at certain altitude, and the weight using insulating oil itself produces pressure, or is set by pressurization
Apply certain pressure for the insulating oil in described oiling module.
3. power capacitor tank external pressurized recharging oil device according to claim 1 is it is characterised in that described connector passes through
Connect including absorption, the mode of viscosity connection is detachably connected on the tank wall of described power capacitor.
4. power capacitor tank external pressurized recharging oil device according to claim 3 is it is characterised in that described connector passes through
The suction force range during mode that described absorption connects is in 1n to 5000n.
5. power capacitor tank external pressurized recharging oil device according to claim 1 is it is characterised in that described flexible module is drawn
The scope of tank wall stretching/compress described power capacitor is in -10mm to 50mm.
6. power capacitor tank external pressurized recharging oil device according to claim 1 is it is characterised in that in described oiling module
Insulating oil inject described power capacitor when pressure limit in 0kpa to 500kpa.
7. a kind of power capacitor tank external pressurized oil supplement method is it is characterised in that include step:
S1, the insulating oil of injection power capacitor according to needed for the coefficient of expansion of current temperature conditionss and insulating oil calculates are oily
Amount;
S2, power capacitor is controlled by way of the tank wall of stretching/compressing power capacitor according to required insulating oil oil mass
Volume;
S3, by pressurization by way of by insulating oil inject power capacitor in;
S4, power capacitor is sealed;
S5, the stretching/compressing to power capacitor for the stopping.
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CN201410327243.6A CN104103431B (en) | 2014-07-10 | 2014-07-10 | External pressurizing oil supplementing device and method for power capacitor |
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CN201410327243.6A CN104103431B (en) | 2014-07-10 | 2014-07-10 | External pressurizing oil supplementing device and method for power capacitor |
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CN104103431A CN104103431A (en) | 2014-10-15 |
CN104103431B true CN104103431B (en) | 2017-01-18 |
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CN108766748B (en) * | 2018-05-17 | 2020-05-05 | 国网电力科学研究院武汉南瑞有限责任公司 | Vacuum temperature-regulating impregnation process for power transformer |
CN110136928B (en) * | 2019-04-23 | 2021-09-07 | 国网浙江省电力有限公司绍兴供电公司 | Transformer oil supplementing system and method based on temperature compensation |
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JPH0722298A (en) * | 1993-06-30 | 1995-01-24 | Elna Co Ltd | Electrolyte dispensing apparatus |
JP2000348989A (en) * | 1999-06-09 | 2000-12-15 | Honda Motor Co Ltd | Method and device for injecting electrolyte solution for electric double-layer capacitor |
CN202042378U (en) * | 2011-04-20 | 2011-11-16 | 佛山市三水日明电子有限公司 | Electrolyte spraying injection device |
CN102856084A (en) * | 2012-08-28 | 2013-01-02 | 苏州工业园区和顺电气股份有限公司 | Processing method for vacuum drying impregnation of capacitor |
CN103681007A (en) * | 2013-12-21 | 2014-03-26 | 铜陵源丰电子有限责任公司 | Automatic filling device of pulse capacitor |
CN204011085U (en) * | 2014-07-10 | 2014-12-10 | 上海思源电力电容器有限公司 | Power capacitor tank external pressurized recharging oil device |
-
2014
- 2014-07-10 CN CN201410327243.6A patent/CN104103431B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0722298A (en) * | 1993-06-30 | 1995-01-24 | Elna Co Ltd | Electrolyte dispensing apparatus |
JP2000348989A (en) * | 1999-06-09 | 2000-12-15 | Honda Motor Co Ltd | Method and device for injecting electrolyte solution for electric double-layer capacitor |
CN202042378U (en) * | 2011-04-20 | 2011-11-16 | 佛山市三水日明电子有限公司 | Electrolyte spraying injection device |
CN102856084A (en) * | 2012-08-28 | 2013-01-02 | 苏州工业园区和顺电气股份有限公司 | Processing method for vacuum drying impregnation of capacitor |
CN103681007A (en) * | 2013-12-21 | 2014-03-26 | 铜陵源丰电子有限责任公司 | Automatic filling device of pulse capacitor |
CN204011085U (en) * | 2014-07-10 | 2014-12-10 | 上海思源电力电容器有限公司 | Power capacitor tank external pressurized recharging oil device |
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