CN208265028U - A kind of saturation type insulating oil oil storage tank damp-proof device - Google Patents
A kind of saturation type insulating oil oil storage tank damp-proof device Download PDFInfo
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- CN208265028U CN208265028U CN201820775235.1U CN201820775235U CN208265028U CN 208265028 U CN208265028 U CN 208265028U CN 201820775235 U CN201820775235 U CN 201820775235U CN 208265028 U CN208265028 U CN 208265028U
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- storage tank
- oil storage
- solenoid valve
- oil
- pressure switch
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Abstract
The utility model proposes a kind of saturation type insulating oil oil storage tank damp-proof devices, are related to oil product storage field.The device includes nitrogen cylinder, pressure reducing valve, intake solenoid valve, exhaust solenoid valve, high pressure switch, low-pressure switch, and the nitrogen cylinder passes sequentially through pressure reducing valve, intake solenoid valve and even connect and be connected to oil storage tank；Exhaust solenoid valve connect and is connected to oil storage tank；Low-pressure switch, high pressure switch are arranged on oil storage tank, for detecting to the air pressure in oil storage tank；The damp-proof device further includes having control circuit, and control circuit is electrically connected with high pressure switch, low-pressure switch, intake solenoid valve, exhaust solenoid valve.The device can make to keep gas micro-positive pressure pressure to facilitate the frequent routine of oil product to take so that preventing external humidification enters oil storage tank in oil tank, and can guarantee Oil Tank Body will not over-voltage it is impaired.
Description
Technical field
The utility model relates to oil product storage fields, moisture-proof more particularly, to a kind of saturation type insulating oil oil storage tank
Device.
Background technique
Insulating oil is that a kind of lubricating oil made of antioxidant modulation is added as the lube base oil of deep refining, generally
Including transformer oil, oil circuit breaker oil, capacitor oil and cable oil.A kind of more enervated lubricating oil of insulating oil, moisture, impurity,
Polar substances can significantly reduce the indexs such as pressure resistance, dielectric loss, interfacial tension, micro-water content.
Usually to insulating oil store when, generally using oil storage tank store, and need to guarantee oil storage tank cleaning dry oil free paint or
Other oil products.This oil storage tank can generally install silica gel respirator additional, prevent insulating oil dampness using the principle of silica gel moisture absorption, and
Vacuumize sealing up for safekeeping after oil storage tank fills insulating oil, to avoid insulating oil and moisture, other oils, particle, chemistry dirty
The contact such as dye.
However, the silica gel respirator that oil storage tank installs additional can only prevent some moisture from entering oil storage tank.There is experiment to show at this
When storing insulating oil in kind oil storage tank, oil product will make moist in 50 days, cause the indexs such as oil product micro-water content unqualified.Except this
In addition, oil storage tank vacuumize seal up for safekeeping in the case where, since oil storage tank is in vacuum state, it has not been convenient to take oily use, it is fixed to be only suitable for
Phase quantitatively saves, and is not appropriate for frequently taking oily use in daily production.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of saturation type insulating oil
Oil storage tank damp-proof device has moisture protection stronger, uses more easily advantage.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of saturation type insulating oil oil storage tank damp-proof device, it is characterised in that: including nitrogen cylinder, pressure reducing valve, air inlet electricity
Magnet valve DT2, exhaust solenoid valve DT1, low-pressure switch P2, high pressure switch P1, the nitrogen cylinder pass sequentially through pressure reducing valve, air inlet
Solenoid valve DT2 even connect and is connected to oil storage tank；Exhaust solenoid valve DT1 connect and is connected to oil storage tank；Low-pressure switch P2, height
Pressure switch P1 is arranged on oil storage tank, for detecting to the air pressure in oil storage tank；The damp-proof device further includes having control
Circuit processed, control circuit are electrically connected with high pressure switch P1, low-pressure switch P2, intake solenoid valve DT2, exhaust solenoid valve DT1.
In use, after new transformer oily filter is good, keep pressure inside the tank in 0.02Mpa using nitrogen, when in tank
When pressure is less than 0.02Mpa, low-pressure switch motion starts intake solenoid valve, and nitrogen cylinder starts the inflation in oil storage tank, etc.
Intake solenoid valve is automatically closed when reaching 0.03Mpa in pressure inside the tank；It is high when pressure is greater than 0.04Mpa to ensure system safety
Pressure switch movement, start exhaust solenoid valve, in oil storage tank nitrogen be discharged, etc. pressure inside the tanks reach 0.03Mpa when it is automatic
Close exhaust solenoid valve.
Preferably, the control circuit includes intermediate relay KA1, the normally closed node of intermediate relay KA2, KA1 and KA2 normal
Close node；One end of high pressure switch P1 and the end L of power supply connect, and the other end of high pressure switch P1 passes through intermediate relay
The connection of the N-terminal of KA1 and power supply；One end of low-pressure switch P2 and the end L of power supply connect, and the other end of low-pressure switch P2 passes through
The connection of the N-terminal of intermediate relay KA2 and power supply；One end of exhaust solenoid valve DT1 and the N-terminal of power supply connect, exhaust solenoid valve DT1
The other end connected by the end L of the normally closed node of KA1 and power supply；One end of intake solenoid valve DT2 and the N-terminal of power supply connect, into
The other end of pneumoelectric magnet valve DT2 is connected by the end L of the normally closed node of KA2 and power supply.
Preferably, the control circuit further includes having air inlet work light LH3 and exhaust work indicator light LH2, air inlet
The N-terminal of one end of work light LH3 and power supply connects, the other end of air inlet work light LH3 by the normally closed node of KA2 with
The end L of power supply connects；One end of exhaust work indicator light LH2 and the N-terminal of power supply connect, and exhaust work indicator light LH2's is another
End is connected by the end L of the normally closed node of KA1 and power supply.
Preferably, relief valve device is provided on the oil storage tank, relief valve device connect and is connected to oil storage tank.
Preferably, the relief valve device is spring loaded safety valve.
Preferably, the operating pressure of the spring loaded safety valve is 0.05Mpa.
Preferably, the action value of the low-pressure switch is 0.02Mpa, and the action value of the high pressure switch is
0.04Mpa。
Preferably, the operating voltage of described device is 220V.
Compared with prior art, the utility model has the beneficial effects that the utility model is by being filled with oil storage tank inside
High-purity drying nitrogen, and oil storage tank internal pressure is made to be maintained at a certain range of micro-positive pressure pressure, to prevent external humidification
Into in oil tank.And oil tank inside is normal pressure, and oil product frequent routine is facilitated to take.The utility model can also be with decompression
Valve, spring loaded safety valve and control circuit, it can be ensured that Oil Tank Body will not over-voltage it is impaired.
Detailed description of the invention
Fig. 1 is the device assembling schematic diagram of the utility model.
Wherein: 1, nitrogen cylinder；2, pressure reducing valve；3, intake solenoid valve；4, low-pressure switchs；5, high pressure switchs；6. exhaust
Solenoid valve；7, spring loaded safety valve.
Fig. 2 is the device control circuit schematic diagram of the utility model.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, being the device installation diagram of the utility model.The utility model include nitrogen cylinder (1), pressure reducing valve (2),
Intake solenoid valve DT2(3), exhaust solenoid valve DT1(6), low-pressure switch P2(4), high pressure switch P1(5), the nitrogen cylinder
(1) pressure reducing valve (2), intake solenoid valve DT2(3 are passed sequentially through) it connect and is connected to oil storage tank；Exhaust solenoid valve DT1(6) and storage
Oil tank connection and connection；Low-pressure switch P2(4), high pressure switch P1(5) be arranged on oil storage tank, for in oil storage tank
Air pressure is detected；It is provided on oil storage tank spring loaded safety valve (7), spring loaded safety valve (7) connect and is connected to oil storage tank；
The damp-proof device further includes having control circuit, control circuit and high pressure switch P1, low-pressure switch P2, intake solenoid valve
DT2, exhaust solenoid valve DT1 electrical connection.The operating pressure of spring loaded safety valve (7) in device is 0.05Mpa, low-pressure switch
P2(4 action value) is 0.02Mpa, high pressure switch P1(5) action value be 0.04Mpa.
As shown in Fig. 2, being the device control circuit of the utility model.Including intermediate relay KA1, intermediate relay
The normally closed node of KA2, KA1 and the normally closed node of KA2；High pressure switch P1(5) one end and power supply the end L connect, high pressure switch
P1(5 the other end) is connected by the N-terminal of intermediate relay KA1 and power supply；Low-pressure switch P2(4) one end and power supply L
End connection, low-pressure switch P2(4) the other end N-terminal connection that passes through intermediate relay KA2 and power supply；Exhaust solenoid valve DT1
(6) N-terminal of one end and power supply connects, exhaust solenoid valve DT1(6) the other end connected by the end L of the normally closed node of KA1 and power supply
It connects；Intake solenoid valve DT2(3) one end and power supply N-terminal connect, intake solenoid valve DT2(3) the other end by KA2 it is normally closed
The connection of the end L of node and power supply.It further include having air inlet work light LH3, exhaust work indicator light LH2 and electricity in control circuit
Source indicator light LH1, wherein the N-terminal of one end of air inlet work light LH3 and power supply connects, and air inlet work light LH3's is another
One end is connected by the end L of the normally closed node of KA2 and power supply；One end of exhaust work indicator light LH2 and the N-terminal of power supply connect, row
The other end of gas work light LH2 is connected by the end L of the normally closed node of KA1 and power supply；One end of power supply indicator LH1 and electricity
The connection of source N-terminal, the other end of power supply indicator LH1 and the end L of power supply connect.
The operating voltage of damp-proof device is 220V.When being stored after the oily filter that newly insulate is good using oil storage tank, nitrogen cylinder
(1) nitrogen in passes through pressure reducing valve (2) and intake solenoid valve DT2(3) nitrogen is filled with into oil storage tank, and pressure inside the tank is kept to exist
0.02Mpa.When pressure inside the tank is less than 0.02Mpa, low-pressure switch P2(4) induction movement, through KA1 normally closed contact (KA1 relay
When device acts, normally closed contact is disconnected), start intermediate relay KA2, restart intake solenoid valve DT2(3), nitrogen cylinder (1) starts
It is filled with nitrogen to oil storage tank, intake solenoid valve DT2(3 is automatically closed when pressure inside the tank reaches 0.03Mpa).To ensure that system is pacified
Entirely, when pressure be greater than 0.04Mpa when, high pressure switch P1(5) induction act, through KA2 normally closed contact (when the KA2 actuating of relay,
Normally closed contact disconnects) starting intermediate relay KA1, restart exhaust solenoid valve DT1(6), oil storage tank starts externally to be vented, and works as tank
Exhaust solenoid valve DT1(6 is automatically closed when dropping to 0.03Mpa in interior pressure).In device control circuit, when opening power supply, power supply
Indicator light LH1 is bright；When oil storage tank is exhausted, it is bright to be vented indicator light LH2 for exhaust solenoid valve (6) movement；When air inlet, into
Pneumoelectric magnet valve (3) movement, air inlet indicator light LH3 are bright.
The device can make to keep gas micro-positive pressure pressure in oil tank, so that preventing external humidification enters oil storage tank, it is convenient
The frequent routine of oil product is taken, and by control circuit, pressure reducing valve and spring loaded safety valve, can guarantee that Oil Tank Body will not over-voltage
It is impaired.
The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (8)
1. a kind of saturation type insulating oil oil storage tank damp-proof device, it is characterised in that: including nitrogen cylinder, pressure reducing valve, air inlet electromagnetism
Valve DT2, exhaust solenoid valve DT1, low-pressure switch P2, high pressure switch P1, the nitrogen cylinder pass sequentially through pressure reducing valve, air inlet electricity
Magnet valve DT2 even connect and is connected to oil storage tank；Exhaust solenoid valve DT1 connect and is connected to oil storage tank；Low-pressure switch P2, high pressure
Power switch P1 is arranged on oil storage tank, for detecting to the air pressure in oil storage tank；The damp-proof device further includes having control
Circuit, control circuit are electrically connected with high pressure switch P1, low-pressure switch P2, intake solenoid valve DT2, exhaust solenoid valve DT1.
2. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 1, it is characterised in that: the control
Circuit includes intermediate relay KA1, the normally closed node of intermediate relay KA2, KA1 and the normally closed node of KA2；The one of high pressure switch P1
End is connect with the end L of power supply, and the other end of high pressure switch P1 is connected by the N-terminal of intermediate relay KA1 and power supply；Low-pressure
One end of switch P2 and the end L of power supply connect, and the other end of low-pressure switch P2 passes through the N-terminal of intermediate relay KA2 and power supply
Connection；One end of exhaust solenoid valve DT1 and the N-terminal of power supply connect, and the other end of exhaust solenoid valve DT1 passes through the normally closed node of KA1
It is connect with the end L of power supply；One end of intake solenoid valve DT2 and the N-terminal of power supply connect, and the other end of intake solenoid valve DT2 passes through
The connection of the end L of the normally closed node of KA2 and power supply.
3. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 2, it is characterised in that: the control
Circuit further includes having air inlet work light LH3 and exhaust work indicator light LH2, one end of air inlet work light LH3 and electricity
The N-terminal in source connects, and the other end of air inlet work light LH3 is connected by the end L of the normally closed node of KA2 and power supply；Exhaust work
One end of indicator light LH2 and the N-terminal of power supply connect, and the other end of exhaust work indicator light LH2 passes through the normally closed node of KA1 and power supply
The end L connection.
4. described in any item a kind of saturation type insulating oil oil storage tank damp-proof devices according to claim 1 ~ 3, it is characterised in that:
Relief valve device is provided on the oil storage tank, relief valve device connect and is connected to oil storage tank.
5. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 4, it is characterised in that: the safety
Valve gear is spring loaded safety valve.
6. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 5, it is characterised in that: the spring
The operating pressure of formula safety valve is 0.05Mpa.
7. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 1, it is characterised in that: the low pressure
The action value of power switch P2 is 0.02Mpa, and the action value of the high pressure switch P1 is 0.04Mpa.
8. a kind of saturation type insulating oil oil storage tank damp-proof device according to claim 1, it is characterised in that: described moisture-proof
The operating voltage of device is 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775235.1U CN208265028U (en) | 2018-05-23 | 2018-05-23 | A kind of saturation type insulating oil oil storage tank damp-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775235.1U CN208265028U (en) | 2018-05-23 | 2018-05-23 | A kind of saturation type insulating oil oil storage tank damp-proof device |
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| Publication Number | Publication Date |
|---|---|
| CN208265028U true CN208265028U (en) | 2018-12-21 |
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ID=64685470
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820775235.1U Active CN208265028U (en) | 2018-05-23 | 2018-05-23 | A kind of saturation type insulating oil oil storage tank damp-proof device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707711A (en) * | 2020-06-28 | 2020-09-25 | 西安西电变压器有限责任公司 | Simulation method and device for detecting dissolved gas in oil under insulating oil electrical fault |
| CN112009897A (en) * | 2019-05-31 | 2020-12-01 | 中山凯旋真空科技股份有限公司 | Condensate oil collecting and discharging device |
| CN112933664A (en) * | 2021-01-29 | 2021-06-11 | 云南电网有限责任公司电力科学研究院 | Transformer oil moisture filtering equipment and use method thereof |
-
2018
- 2018-05-23 CN CN201820775235.1U patent/CN208265028U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009897A (en) * | 2019-05-31 | 2020-12-01 | 中山凯旋真空科技股份有限公司 | Condensate oil collecting and discharging device |
| CN111707711A (en) * | 2020-06-28 | 2020-09-25 | 西安西电变压器有限责任公司 | Simulation method and device for detecting dissolved gas in oil under insulating oil electrical fault |
| CN112933664A (en) * | 2021-01-29 | 2021-06-11 | 云南电网有限责任公司电力科学研究院 | Transformer oil moisture filtering equipment and use method thereof |
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