CN113539647A - Uninterrupted oil filtering device and method for on-load voltage regulation switch oil tank of transformer - Google Patents
Uninterrupted oil filtering device and method for on-load voltage regulation switch oil tank of transformer Download PDFInfo
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- CN113539647A CN113539647A CN202110656977.9A CN202110656977A CN113539647A CN 113539647 A CN113539647 A CN 113539647A CN 202110656977 A CN202110656977 A CN 202110656977A CN 113539647 A CN113539647 A CN 113539647A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H2009/0055—Oil filters for tap change devices
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- Power Engineering (AREA)
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a non-power-off oil filtering device for an on-load voltage-regulating switch oil tank of a transformer, which comprises a transformer conservator and an oil filtering cylinder, wherein the transformer conservator and the oil filtering cylinder are connected with the transformer oil tank; two cylinder jackets are symmetrically installed on the left side and the right side of the transformer conservator, the transformer conservator is rotationally connected with the cylinder jackets, the oil filtering cylinder is installed on the upper side of the transformer conservator, the bottom of the oil filtering cylinder is communicated with the transformer conservator through a plurality of oil filtering pipes, an oil filtering mechanism is installed on the oil filtering cylinder in a communicated mode, and the oil filtering cylinder rotates along with the transformer conservator. According to the invention, when the transformer conservator rotates, the oil filter cylinder rotates along with the transformer conservator, when the oil filter cylinder rotates to the position below the transformer conservator, transformer oil in the transformer conservator flows into the oil filter cylinder along the oil filter pipe, the transformer oil is filtered, and the oil in the on-load tap changer oil tank is filtered without power failure, so that the operation reliability of the transformer is improved, and photovoltaic power generation can be smoothly connected into a network.
Description
Technical Field
The invention relates to the technical field of transformer oil filtering, in particular to a device and a method for filtering oil of a transformer on-load tap changer oil tank without power failure.
Background
Along with the increase of the photovoltaic grid-connected capacity, the load is changed and fluctuates greatly along with the time, so that the on-load voltage regulation action frequency of the transformer is obviously increased. When the on-load tap changer acts, electric arcs are generated, transformer oil is aged and deteriorated, and the insulating property is reduced. In order to ensure the reliable operation of the transformer, the oil in the oil-carrying tank of the transformer needs to be replaced by power failure, and the power supply reliability is affected by frequent power failure replacement.
Therefore, in order to overcome the defects in the current practical application, there is an urgent need to develop a device and a method for filtering oil without power failure for an on-load tap changer oil tank of a transformer.
Disclosure of Invention
The invention aims to provide a non-power-off oil filtering device for an on-load tap changer oil tank of a transformer, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a uninterrupted oil filtering device for an on-load voltage regulation switch oil tank of a transformer comprises a transformer conservator and an oil filtering cylinder which are connected with the transformer oil tank; the left side and the right side of the transformer conservator are symmetrically provided with two cylinder sleeves, the transformer conservator is rotationally connected with the cylinder sleeves, the oil filter cylinder is arranged on the upper side of the transformer conservator, the bottom of the oil filter cylinder is communicated with the transformer conservator through a plurality of oil filter pipes, an oil filter mechanism is communicated and arranged on the oil filter cylinder, and the oil filter cylinder rotates along with the transformer conservator;
the oil quantity detection module is installed inside the transformer conservator, the control module is installed inside the transformer conservator, the electromagnetic valve is electrically connected with the control module, and the control module is electrically connected with the display module.
As a further scheme of the invention: two connecting mechanisms are symmetrically arranged on the left side and the right side inside the transformer conservator, a rotating shaft is fixedly arranged on each connecting mechanism, and the rotating shaft penetrates through the cylinder sleeve and extends out.
As a further scheme of the invention: the rotating shaft is of a hollow structure, an oil conveying pipe is arranged inside the rotating shaft, and the number of the transformers is two, one is a transformer oil pipe, and the other is an oil inlet pipe.
As a further scheme of the invention: one side of the transformer oil pipe is communicated with the inside of the transformer conservator, the other side of the transformer oil pipe is communicated with the inside of the transformer oil tank and used for supplying oil to the transformer oil tank, one side of the oil inlet pipe is communicated with the inside of the transformer conservator, and the other side of the oil inlet pipe is communicated with the oil delivery pump and used for supplementing oil when the oil is lack in the transformer oil tank or the inside of the transformer conservator.
As a further scheme of the invention: the oil filter pipe is provided with a plurality of oil filter pipes, and each oil filter pipe is provided with an electromagnetic valve for controlling the on-off of the oil filter pipe.
As a further scheme of the invention: the alarm module is electrically connected with the display module.
As a further scheme of the invention: the transformer oil conservator is characterized by further comprising a driving mechanism, wherein the driving mechanism comprises a support and a driving shaft, the support is mounted at the bottom of the cylinder sleeve and used for supporting the transformer oil conservator, the driving shaft is rotatably mounted on the support, a second belt pulley is fixedly mounted at the end of the driving shaft, a first belt pulley is fixedly mounted on the rotating shaft, and the first belt pulley is in transmission connection with the second belt pulley through a synchronous belt; and a driving motor is also fixedly arranged on the bracket on one side, and the output end of the driving motor is fixedly connected with the driving shaft.
A power-failure oil filtering method for an on-load tap changer oil tank of a transformer comprises the following steps:
s001, starting an oil delivery pump to deliver transformer oil to the interior of the transformer conservator, and stopping when the oil quantity in the transformer conservator is detected to be more than or equal to 90%;
s002, starting a control module and a driving motor, wherein the control module opens an electromagnetic valve to perform oil filtering operation;
s003, the control module adjusts the opening number of the electromagnetic valves, and the alarm module reads display data of the display module;
s004, judging whether the data are abnormal or not, continuing to step S003 when the data are abnormal, and performing step S005 when the data are abnormal;
and S005, opening the oil transfer pump, and transferring the transformer oil to the interior of the transformer conservator.
As a further scheme of the invention:
the oil quantity detection module is used for detecting the oil quantity in the transformer conservator and sending the detected oil quantity value to the control module;
the control module is used for receiving the oil quantity value sent by the oil quantity detection module and controlling the opening number of the electromagnetic valves according to the oil quantity value; the oil quantity control module is used for sending the opening number and the oil quantity value of the electromagnetic valve to the display module;
and the display module is used for receiving the opening number and the oil quantity value of the electromagnetic valve sent by the control module and displaying the opening number and the oil quantity value.
As a further scheme of the invention: the method for controlling the opening number of the electromagnetic valves by the control module according to the oil quantity value comprises the following steps:
a. receiving a comparison table of an oil quantity value input by a user and the opening number of the electromagnetic valves;
b. and determining the opening number of the electromagnetic valves according to the comparison table.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, when the transformer conservator rotates, the oil filter cylinder rotates along with the transformer conservator, when the oil filter cylinder rotates to the position below the transformer conservator, transformer oil in the transformer conservator flows into the oil filter cylinder along the oil filter pipe, the transformer oil smoke oil filter pipe flows through the oil filter mechanism to be filtered, when the oil filter cylinder rotates to the position above the transformer conservator, the transformer oil in the oil filter cylinder flows into the transformer conservator along the oil filter pipe, at the moment, the transformer oil is filtered again, so that the transformer oil in the transformer conservator is filtered continuously, the oil in the on-load tap changer oil tank is filtered without power failure, the operation reliability of the transformer is improved, and photovoltaic power generation can be smoothly networked.
Drawings
Fig. 1 is a schematic structural diagram of a power-uninterrupted oil filtering device of a transformer on-load tap changer oil tank.
Fig. 2 is a schematic structural diagram of a transformer conservator in a non-power-off oil filtering device of a transformer on-load tap changer oil tank.
Fig. 3 is a front view of a non-power-off oil filter device of a transformer on-load tap changer oil tank.
FIG. 4 is a flow chart of a method for filtering oil in a transformer on-load tap changer oil tank without power cut.
In the figure: 1-transformer conservator, 2-cylinder sleeve, 3-rotating shaft, 4-oil pipeline, 5-oil filter cylinder, 6-oil filter pipe, 7-electromagnetic valve, 8-oil filter mechanism, 9-bracket, 10-connecting frame, 11-connecting block, 12-first belt pulley, 13-synchronous belt, 14-second belt pulley, 15-driving shaft and 16-driving motor.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, an uninterrupted oil filtering apparatus for an on-load tap changer oil tank of a transformer includes a transformer conservator 1 and an oil filtering cylinder 5 connected to the transformer oil tank; two cylinder sleeves 2 are symmetrically arranged at the left side and the right side of the transformer conservator 1, the transformer conservator 1 is rotationally connected with the cylinder sleeves 2, the oil filter cylinder 5 is arranged on the upper side of the transformer conservator 1, the bottom of the oil filter cylinder 5 is communicated with the transformer conservator 1 through a plurality of oil filter pipes 6, an oil filter mechanism 8 is communicated and arranged on the oil filter cylinder 6, when the transformer conservator 1 rotates, the oil filter cylinder 5 rotates along with the transformer conservator 1, when the oil filter cylinder 5 rotates to the lower part of the transformer conservator 1, when the transformer oil in the transformer conservator 1 flows into the oil filter cylinder 5 along the oil filter pipe 6, the transformer oil fume filter pipe 6 is filtered when flowing through the oil filter mechanism 8, and the oil filter cylinder 5 rotates to the upper part of the transformer conservator 1, the transformer oil in the oil filter cylinder 5 flows into the transformer conservator 1 along the oil filter pipe 6, and at the moment, the transformer oil is filtered again; in order to ensure that the transformer conservator 1 is always filled with oil, namely, the transformer conservator 1 is maintained to be supplied with oil to the transformer oil tank all the time, so as to prevent the transformer oil tank from being lack of oil, the volume of the transformer conservator 1 is at least two times larger than that of the oil filter 5;
in the embodiment of the invention, it should be noted that two connecting mechanisms are symmetrically installed on the left side and the right side inside the transformer conservator 1, a rotating shaft 3 is fixedly installed on the connecting mechanisms, the rotating shaft 3 penetrates through the cylinder sleeve 2 and extends out, and the rotating shaft 3 drives the transformer conservator 1 to rotate when rotating;
further, in the embodiment of the present invention, the rotating shaft 3 is a hollow structure, the inside of the rotating shaft 3 is provided with an oil delivery pipe 4, two transformers 4 are provided, one is a transformer oil pipe, the other is an oil inlet pipe, one side of the transformer oil pipe is communicated with the inside of the transformer conservator 1, the other side of the transformer oil pipe is communicated with the inside of the transformer oil tank for supplying oil to the transformer oil tank, one side of the oil inlet pipe is communicated with the inside of the transformer conservator 1, and the other side of the oil inlet pipe is communicated with an oil delivery pump for supplying oil when the inside of the transformer oil tank or the transformer conservator 1 is in oil shortage.
In the embodiment of the invention, the oil filtering pipes 6 are provided with a plurality of oil filtering pipes (in the embodiment, seven oil filtering pipes 6 are provided, and correspondingly seven electromagnetic valves 7 are provided), each oil filtering pipe 6 is provided with the electromagnetic valve 7 for controlling the on-off of the oil filtering pipe 6, and the flow quantity of the transformer oil between the transformer conservator 1 and the oil filtering cylinder 5 in unit time is changed by controlling the on-off quantity of the electromagnetic valves 7, so that the oil filtering efficiency is changed.
It should be noted that, the oil quantity detection module, the control module and the display module are installed inside the transformer conservator 1, the oil quantity detection module and the electromagnetic valve 7 are electrically connected with the control module, the control module is electrically connected with the display module, wherein:
the oil quantity detection module is used for detecting the oil quantity in the transformer conservator 1 and sending the detected oil quantity value to the control module;
the control module is used for receiving the oil quantity value sent by the oil quantity detection module and controlling the opening number of the electromagnetic valves 7 according to the oil quantity value; the oil quantity control module is used for sending the opening number and the oil quantity value of the electromagnetic valve 7 to the display module;
the display module is used for receiving the opening number and the oil quantity value of the electromagnetic valve 7 sent by the control module and displaying the opening number and the oil quantity value;
it should be further noted that, the method for controlling the number of the solenoid valves 7 opened by the control module according to the oil amount value is as follows:
a. receiving a comparison table of an oil quantity value input by a user and the opening number of the electromagnetic valves;
b. determining the opening number of the electromagnetic valves 7 according to the comparison table;
the table is shown below:
comparison table
| Oil mass | 100％ | 85％ | 75％ | 60％ | 40％ | 25％ | 10％ |
| Number of solenoid valves | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
In the embodiment of the invention, the device also comprises an alarm module which is electrically connected with the display module,
the alarm module is used for reading the display data of the display module and giving an alarm when the number of the electromagnetic valves is 7 and the oil amount is less than or equal to 10 percent for a long time;
wherein the long term is a time T of 2h or more.
Example 2
Referring to fig. 1-2, in an embodiment of the present invention, an uninterrupted oil filtering apparatus for an on-load tap changer oil tank of a transformer includes a transformer conservator 1 and an oil filtering cylinder 5 connected to the transformer oil tank; two cylinder sleeves 2 are symmetrically arranged at the left side and the right side of the transformer conservator 1, the transformer conservator 1 is rotationally connected with the cylinder sleeves 2, the oil filter cylinder 5 is arranged on the upper side of the transformer conservator 1, the bottom of the oil filter cylinder 5 is communicated with the transformer conservator 1 through a plurality of oil filter pipes 6, an oil filter mechanism 8 is communicated and arranged on the oil filter cylinder 6, when the transformer conservator 1 rotates, the oil filter cylinder 5 rotates along with the transformer conservator 1, when the oil filter cylinder 5 rotates to the lower part of the transformer conservator 1, when the transformer oil in the transformer conservator 1 flows into the oil filter cylinder 5 along the oil filter pipe 6, the transformer oil fume filter pipe 6 is filtered when flowing through the oil filter mechanism 8, and the oil filter cylinder 5 rotates to the upper part of the transformer conservator 1, the transformer oil in the oil filter cylinder 5 flows into the transformer conservator 1 along the oil filter pipe 6, and at the moment, the transformer oil is filtered again; in order to ensure that the transformer conservator 1 is always filled with oil, namely, the transformer conservator 1 is maintained to be supplied with oil to a transformer oil tank all the time, so that oil shortage in the transformer oil tank is prevented;
in the embodiment of the invention, it should be noted that two connecting mechanisms are symmetrically installed on the left side and the right side inside the transformer conservator 1, a rotating shaft 3 is fixedly installed on the connecting mechanisms, the rotating shaft 3 penetrates through the cylinder sleeve 2 and extends out, and the rotating shaft 3 drives the transformer conservator 1 to rotate when rotating;
further, in the embodiment of the present invention, the rotating shaft 3 is a hollow structure, the inside of the rotating shaft 3 is provided with an oil delivery pipe 4, two transformers 4 are provided, one is a transformer oil pipe, the other is an oil inlet pipe, one side of the transformer oil pipe is communicated with the inside of the transformer conservator 1, the other side of the transformer oil pipe is communicated with the inside of the transformer oil tank for supplying oil to the transformer oil tank, one side of the oil inlet pipe is communicated with the inside of the transformer conservator 1, and the other side of the oil inlet pipe is communicated with an oil delivery pump for supplying oil when the inside of the transformer oil tank or the transformer conservator 1 is in oil shortage.
In the embodiment of the invention, the oil filtering pipes 6 are provided with a plurality of oil filtering pipes (in the embodiment, seven oil filtering pipes 6 are provided, and correspondingly seven electromagnetic valves 7 are provided), each oil filtering pipe 6 is provided with the electromagnetic valve 7 for controlling the on-off of the oil filtering pipe 6, and the flow quantity of the transformer oil between the transformer conservator 1 and the oil filtering cylinder 5 in unit time is changed by controlling the on-off quantity of the electromagnetic valves 7, so that the oil filtering efficiency is changed.
It should be noted that, the oil quantity detection module, the control module and the display module are installed inside the transformer conservator 1, the oil quantity detection module and the electromagnetic valve 7 are electrically connected with the control module, the control module is electrically connected with the display module, wherein:
the oil quantity detection module is used for detecting the oil quantity in the transformer conservator 1 and sending the detected oil quantity value to the control module;
the control module is used for receiving the oil quantity value sent by the oil quantity detection module and controlling the opening number of the electromagnetic valves 7 according to the oil quantity value; the oil quantity control module is used for sending the opening number and the oil quantity value of the electromagnetic valve 7 to the display module;
the display module is used for receiving the opening number and the oil quantity value of the electromagnetic valve 7 sent by the control module and displaying the opening number and the oil quantity value;
it should be further noted that, the method for controlling the number of the solenoid valves 7 opened by the control module according to the oil amount value is as follows:
c. receiving a comparison table of an oil quantity value input by a user and the opening number of the electromagnetic valves;
d. determining the opening number of the electromagnetic valves 7 according to the comparison table;
the table is shown below:
comparison table
| Oil mass | ≥90％ | 80％ | 70％ | 60％ | 45％ | 25％ | 10％ |
| Number of solenoid valves | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
In the embodiment of the invention, the device also comprises an alarm module which is electrically connected with the display module,
the alarm module is used for reading the display data of the display module and giving an alarm when the number of the electromagnetic valves is 7 and the oil amount is less than or equal to 10 percent for a long time;
wherein the long term is a time T of 2h or more.
Referring to fig. 3, the difference between the present embodiment and embodiment 1 is:
the transformer oil conservator is characterized by further comprising a driving mechanism, wherein the driving mechanism comprises a support 9 which is arranged at the bottom of the cylinder sleeve 2 and used for supporting the transformer oil conservator 1 and a driving shaft 15 which is rotatably arranged on the support 9, a second belt pulley 14 is fixedly arranged at the end of the driving shaft 15, a first belt pulley 12 is fixedly arranged on the rotating shaft 3, and the first belt pulley 12 and the second belt pulley 14 are in transmission connection through a synchronous belt 13;
further, in the embodiment of the present invention, a driving motor 16 is further fixedly mounted on one side bracket 9, and an output end of the driving motor 16 is fixedly connected with the driving shaft 15.
Example 3
Referring to fig. 4, a method for filtering oil in a transformer on-load tap changer oil tank without power failure includes the following steps:
s001, starting an oil delivery pump to deliver transformer oil to the interior of the transformer conservator, and stopping when the oil quantity in the transformer conservator is detected to be more than or equal to 90%;
s002, starting a control module and a driving motor, wherein the control module opens an electromagnetic valve to perform oil filtering operation;
s003, the control module adjusts the opening number of the electromagnetic valves, and the alarm module reads display data of the display module;
s004, judging whether the data are abnormal or not, continuing to step S003 when the data are abnormal, and performing step S005 when the data are abnormal;
and S005, opening the oil transfer pump, and transferring the transformer oil to the interior of the transformer conservator.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. A non-power-off oil filtering device of a transformer on-load tap changer oil tank is characterized by comprising a transformer conservator (1) and an oil filtering cylinder (5) which are connected with the transformer oil tank; the transformer conservator is characterized in that two cylinder sleeves (2) are symmetrically arranged on the left side and the right side of the transformer conservator (1), the transformer conservator (1) is rotatably connected with the cylinder sleeves (2), the oil filter cylinder (5) is arranged on the upper side of the transformer conservator (1), the bottom of the oil filter cylinder (5) is communicated with the transformer conservator (1) through a plurality of oil filter pipes (6), an oil filter mechanism (8) is arranged on the oil filter cylinder (6) in a communicating mode, and the oil filter cylinder (5) rotates along with the transformer conservator (1);
the oil quantity detection device is characterized by further comprising an oil quantity detection module, a control module and a display module which are installed inside the transformer conservator (1), wherein the oil quantity detection module and the electromagnetic valve (7) are electrically connected with the control module, and the control module is electrically connected with the display module.
2. The uninterrupted oil filter device for the oil tank of the transformer on-load tap changer according to claim 1, wherein two connecting mechanisms are symmetrically arranged on the left side and the right side inside the transformer conservator (1), a rotating shaft (3) is fixedly arranged on each connecting mechanism, and the rotating shaft (3) penetrates through the barrel sleeve (2) and extends out.
3. The uninterrupted oil filter device for the on-load tap changer oil tank of the transformer according to claim 1, wherein the rotating shaft (3) is of a hollow structure, the oil delivery pipe (4) is installed inside the rotating shaft (3), and the transformers (4) are two in total, one is a transformer oil pipe, and the other is an oil inlet pipe.
4. The uninterrupted oil filter device for the on-load tap changer oil tank of the transformer according to claim 3, wherein one side of the transformer oil pipe is communicated with the inside of the transformer conservator (1), the other side of the transformer oil pipe is communicated with the inside of the transformer oil tank and used for supplying oil to the transformer oil tank, one side of the oil inlet pipe is communicated with the inside of the transformer conservator (1), and the other side of the oil inlet pipe is communicated with the oil delivery pump and used for supplying oil when the inside of the transformer oil tank or the transformer conservator (1) is in oil shortage.
5. The uninterrupted oil filtering device for the on-load tap changer oil tank of the transformer according to claim 1, characterized in that a plurality of oil filtering pipes (6) are arranged, and each oil filtering pipe (6) is provided with an electromagnetic valve (7) for controlling the on-off of the oil filtering pipe (6).
6. The uninterrupted oil filtering device for the on-load tap changer oil tank of the transformer according to claim 1, further comprising an alarm module, wherein the alarm module is electrically connected with the display module.
7. The uninterrupted oil filtering device for the oil tank of the transformer on-load tap changer according to claim 1, further comprising a driving mechanism, wherein the driving mechanism comprises a support (9) which is installed at the bottom of the barrel casing (2) and used for supporting the transformer conservator (1) and a driving shaft (15) which is rotatably installed on the support (9), a second belt pulley (14) is fixedly installed at the end of the driving shaft (15), a first belt pulley (12) is fixedly installed on the rotating shaft (3), and the first belt pulley (12) is in transmission connection with the second belt pulley (14) through a synchronous belt (13); a driving motor (16) is also fixedly installed on the bracket (9) at one side, and the output end of the driving motor (16) is fixedly connected with the driving shaft (15).
8. The method for filtering oil in the oil tank of the on-load tap changer of the transformer without power failure of any one of claims 1 to 6, which is characterized by comprising the following steps of:
s001, starting an oil delivery pump to deliver transformer oil to the interior of the transformer conservator, and stopping when the oil quantity in the transformer conservator is detected to be more than or equal to 90%;
s002, starting a control module and a driving motor, wherein the control module opens an electromagnetic valve to perform oil filtering operation;
s003, the control module adjusts the opening number of the electromagnetic valves, and the alarm module reads display data of the display module;
s004, judging whether the data are abnormal or not, continuing to step S003 when the data are abnormal, and performing step S005 when the data are abnormal;
and S005, opening the oil transfer pump, and transferring the transformer oil to the interior of the transformer conservator.
9. The method for filtering oil without power failure of the on-load tap changer oil tank of the transformer according to claim 8,
the oil quantity detection module is used for detecting the oil quantity in the transformer conservator (1) and sending the detected oil quantity value to the control module;
the control module is used for receiving the oil quantity value sent by the oil quantity detection module and controlling the opening number of the electromagnetic valves (7) according to the oil quantity value; the oil quantity control module is used for sending the opening number and the oil quantity value of the electromagnetic valve (7) to the display module;
and the display module is used for receiving the opening number and the oil quantity value of the electromagnetic valve (7) sent by the control module and displaying the opening number and the oil quantity value.
10. The uninterrupted oil filtering method for the on-load tap changer oil tank of the transformer according to claim 9, wherein the method for controlling the opening number of the electromagnetic valves (7) by the control module according to the oil quantity value comprises the following steps:
a. receiving a comparison table of an oil quantity value input by a user and the opening number of the electromagnetic valves;
B. the number of the solenoid valves (7) opened is determined from the look-up table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110656977.9A CN113539647B (en) | 2021-06-11 | 2021-06-11 | Uninterrupted oil filtering device and method for on-load voltage regulation switch oil tank of transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110656977.9A CN113539647B (en) | 2021-06-11 | 2021-06-11 | Uninterrupted oil filtering device and method for on-load voltage regulation switch oil tank of transformer |
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| CN113539647B CN113539647B (en) | 2023-01-17 |
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