CN211475485U - Oil-immersed transformer pillow type capsule automatic inflation device - Google Patents
Oil-immersed transformer pillow type capsule automatic inflation device Download PDFInfo
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- CN211475485U CN211475485U CN201922080070.3U CN201922080070U CN211475485U CN 211475485 U CN211475485 U CN 211475485U CN 201922080070 U CN201922080070 U CN 201922080070U CN 211475485 U CN211475485 U CN 211475485U
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Abstract
The utility model provides an oil-immersed transformer pillow type automatic capsule inflation device, which comprises a gas conveying pipe, an inlet end electromagnetic valve and an electromagnetic gas safety valve; the gas inlet end of the gas delivery pipe is connected with a gas source steel cylinder through a gas-filled solenoid valve, and the gas outlet end of the gas delivery pipe is communicated with the gas inlet of the transformer pillow type capsule; the electromagnetic gas safety valve is arranged on the gas delivery pipe; the control component comprises a pressure sensor, a preamplifier, an analog-digital converter, a singlechip and an industrial computer; the pressure sensor is arranged on the gas conveying pipe, and the pressure sensor, the preamplifier, the analog-digital converter, the singlechip and the industrial computer are communicated through signal transmission lines; the industrial computer is provided with a software control system; the utility model discloses convenient simple to use can realize aerifing full process automation, can prevent that the capsule from aerifing excessive pressure or under-voltage, improves work efficiency and reliability, guarantee electric power system's safe operation.
Description
Technical Field
The utility model belongs to the technical field of electric power system owner becomes capsule installation, aerifys, concretely relates to formula transformer pillow formula capsule automatic inflation device is invaded to oil.
Background
At present, a main transformer capsule of a power system transformer substation, which runs for more than 12 years, is gradually replaced to be in a growing trend, construction process standards in the replacement process are inconsistent, particularly in a capsule installation and inflation link, an oxygen hose is mostly butted with an oil storage pillow respirator flange, and inflation is directly carried out through a gas cylinder, so that the process is simple and violent; a decompression meter arranged at the air outlet of the air bottle cannot detect the accurate pressure of inflation in the capsule and the standard rated air pressure flow of inflation, the capsule is damaged by slightly overlarge inflation pressure, and the false oil level of the conservator can be caused by insufficient inflation pressure and insufficient capsule swelling force.
Therefore, before the capsule is installed, the tightness of the capsule needs to be detected by an effective means, and the air bag can be filled with preset standard air pressure after being installed, so that the air bag is expanded to a standard size in the oil conservator orientation space; after oil is injected, the air is inflated again according to the standard preset pressure, so that the air bag is expanded to be flush with the spherical surface of the inner wall of the oil conservator; in the whole inflation process, the inner layer of the capsule is required not to be damaged, the internal air is ensured to be exhausted completely, the tearing strength of the capsule is smaller than 38kN/m, the tensile strength is controlled within the range of 15Mpa, and the risks that the capsule is damaged, bulges and cracks are caused by the irregular installation and the faulty operation of the capsule is caused to generate false oil level and the insulating oil is in direct contact with the external air to be damped and enter water are avoided, so that great potential safety hazards are not brought to the safe and stable operation of the main transformer.
The traditional mode is to the breathing capsule inflation mode in the oil immersed transformer conservator: the air source steel cylinder is directly connected to an air inlet of the capsule, a worker inflates air into the capsule through a manual pressure reducing valve on the air source steel cylinder, manual work is needed for whole-course watching, and if the pressure reducing valve fails, the capsule can be damaged in an irreversible mode, and the requirements can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at to the problem that prior art exists above, provides one kind and can realize that the process of aerifing sets up standard atmospheric pressure in advance, excessive pressure automatic protection, aerifys finish the auto-stop, need not artifical whole participation, and the device is from the standard capsule installation procedure of set of belt cover, can effectively avoid the damaged oil of taking a disease the operation of capsule to invade formula transformer pillow formula capsule aerating device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an oil invades formula transformer pillow formula capsule automatic charging device, sets up between the gas filler of air supply steel bottle and transformer pillow formula capsule, its characterized in that includes: an inflation assembly and a control assembly;
the inflation assembly comprises a gas delivery pipe, an air inlet end electromagnetic valve and an electromagnetic gas safety valve; the gas inlet end of the gas conveying pipe is connected with a gas source steel cylinder through a gas-filled electromagnetic valve, and the gas outlet end of the gas conveying pipe is communicated with the gas inlet of the transformer pillow type capsule; the electromagnetic gas safety valve is arranged on the gas conveying pipe;
the control component comprises a pressure sensor, a preamplifier, an analog-digital converter, a singlechip and an industrial computer; the pressure sensor is arranged on the gas conveying pipe, and the pressure sensor, the preamplifier, the analog-digital converter, the singlechip and the industrial computer are communicated through a signal transmission cable pipeline;
the air inlet end electromagnetic valve and the electromagnetic gas safety valve are electrically connected with the singlechip through a relay and a triode;
a software control system is installed in the industrial computer and comprises an instruction input and data display module, a flow execution module and a process monitoring module; the instruction input and data display module is used for inputting a flow execution instruction from an industrial computer and displaying the working states of the air inlet electromagnetic valve and the electromagnetic gas safety valve and the pressure value in the air bag monitored by the pressure sensor in real time in a data display mode; the flow executing module executes an operation instruction input from the instruction input and data display module so as to control the opening and closing of the air inlet electromagnetic valve and the electromagnetic gas safety valve; the process monitoring module is used for monitoring the working states of the air inlet electromagnetic valve and the electromagnetic gas safety valve in real time and the pressure value in the air bag detected by the pressure sensor, transmitting the monitoring data to the instruction input and data display module and displaying the monitoring data through the screen of the industrial computer.
Preferably, the inflation assembly further comprises a pneumatic alarm and a manual deflation valve, and the pneumatic alarm and the manual deflation valve are mounted on the gas delivery pipe.
Preferably, the pressure sensor is a resistance-type pressure sensor, and the measuring range of the pressure sensor is 0-100 kPa.
Preferably, the industrial computer is a micro touch screen computer.
Preferably, the device further comprises an outer box for housing the inflation assembly and the control assembly.
The utility model discloses a theory of operation is:
equipment assembling: according to the connection relation shown in the attached drawing, an air inlet end electromagnetic valve, an electromagnetic gas safety valve, an air pressure alarm, a manual air release valve and a pressure sensor are arranged on a gas conveying pipe to form an inflation assembly; then the pressure sensor, the preamplifier, the analog-digital converter, the singlechip and the industrial computer are sequentially connected to form a control assembly, and the air inlet end electromagnetic valve and the electromagnetic gas safety valve are electrically connected with the singlechip through a relay and a triode; and the inflation assembly and the control assembly are both arranged in the outer box.
Inspecting an air bag: before the capsule is installed, the pressure sensor 21 and the control component 2 are used for checking and controlling the inflation pressure, firstly, the inflation device of the utility model is used for filling nitrogen into the air bag, the 10kPa standard air pressure is used for checking the air tightness test, firstly, the air bag is pre-inflated to the 2kPa standard air pressure, so that the air bag is unfolded and expanded, and after the preset air pressure is reached, the sensor 21 and the control system 2 automatically stop inflating; and then, filling oil to the oil conservator until the oil conservator reaches the standard oil level, starting to fill the oil to 5kPa, and then automatically stopping filling the oil to finish oil drainage and oil level adjustment.
Inflating the air bag: after the air bag inspection is finished, the inflating device is arranged between the air inlet of the air bag and the air outlet end of the air source steel cylinder, and the air tightness of the connecting part is ensured; the standard flow, the preset air pressure value and the overpressure alarm value of the inflation are preset through the inflation device; then an inflation operation instruction is input through a micro touch screen computer, the flow execution module of the software control system transmits the inflation operation instruction to the air inlet end electromagnetic valve and the electromagnetic gas safety valve through the single chip microcomputer, the triode and the relay in sequence, at the moment, the air inlet end electromagnetic valve is opened, the electromagnetic gas safety valve is closed, and the nitrogen begins to be continuously inflated into the air bag; the whole air inlet process is monitored in real time by a process monitoring module of a software control system, a pressure sensor feeds back and monitors the whole process in real time, a pressure signal is transmitted, converted and processed to a micro touch screen computer through the pressure sensor, a preamplifier, an analog-digital converter and a single chip microcomputer, when the pressure reaches a preset pressure value, a flow execution module of the software control system can automatically send an air charging stopping instruction, the air charging stopping instruction is transmitted to an air inlet end electromagnetic valve and an electromagnetic gas safety valve through the single chip microcomputer, a triode and a relay in sequence, the air inlet end electromagnetic valve is closed at the moment, the electromagnetic gas safety valve is also closed, and therefore the air charging process is stopped; if the inflation is too fast, the pressure of the air bag exceeds a preset pressure value, and the pressure value can be monitored in real time and displayed on a micro touch screen computer through an instruction input and data display module of a software operating system, so that when the monitored pressure is higher than the preset pressure value, the software control system can automatically transmit an instruction to control the electromagnetic gas safety valve to deflate until the pressure reaches the preset pressure value, and then the electromagnetic gas safety valve is closed; when the control assembly and the software control system of the device break down and can not effectively control the pressure, if the air pressure reaches an overpressure alarm value, the air pressure alarm can send an alarm signal, and at the moment, an operator can realize the exhausting function through a manual air release valve, so that the capsule is prevented from being continuously inflated by the inflating system.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model can monitor the pressure state in the capsule in real time during the inflation process, control the pressure of each stage of the capsule, and when the overpressure condition occurs, the software control system and the control component can automatically close the electromagnetic valve at the air inlet end and the electromagnetic gas safety valve, so as to prevent the capsule from being damaged due to too fast inflation flow or too high air pressure; the under-voltage monitoring assembly and the software control system can monitor the pressure state in the capsule displayed through the industrial computer, and prevent the capsule from being affected with damp due to the fact that no gas is introduced into the external moisture of the capsule for a long time.
2. The utility model discloses a control assembly and software control system, the inflated state of real time monitoring capsule and the pressure state in the capsule can let capsule installation maintenance staff, develop work according to standardized operation flow, aerify the overall process and set up in advance through control procedure and realize full automation, need not artifical whole participation, under-voltage protection, excessive pressure automatic protection, the automatic shutdown that finishes of aerifing.
3. The utility model discloses simple to operate is swift, and the capsule is aerifyd simple and conveniently, can effectively shorten repair time, and the operation of industrial artificial intelligence standard improves work efficiency, stops problem capsule, the unqualified capsule of installation and puts in operation, guarantees oil immersed transformer's safety and stability operation, improves work efficiency and reliability, ensures electric power system's safe operation, has proposed the standardized operation method of enterprise, has filled this technical field's technical blank.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural diagram of a pillow-type capsule inflator for an oil-immersed transformer;
fig. 2 is a logic diagram of a software control system of a pillow type capsule inflating device of an oil immersed transformer.
In the figure: 11-gas delivery pipe; 12-inlet solenoid valve; 13-electromagnetic gas safety valve; 14-air pressure alarm; 15-manual deflation valve; 21-a pressure sensor; 22-a preamplifier; 23-a digitizer; 24-a single chip microcomputer; 25-industrial computer.
Detailed Description
The present invention will be further explained by way of examples with reference to the accompanying drawings.
As shown in fig. 1-2, an oil invades formula transformer pillow formula capsule automatic charging device sets up between the gas supply steel bottle and the gas filler of transformer pillow formula capsule, and its characterized in that includes: an inflation assembly 1 and a control assembly 2;
the inflation assembly 1 comprises a gas delivery pipe 11, an air inlet end electromagnetic valve 12 and an electromagnetic gas safety valve 13; the gas inlet end of the gas conveying pipe 11 is connected with a gas source steel cylinder through a gas charging electromagnetic valve 12, and the gas outlet end is communicated with the gas inlet of the transformer pillow type capsule; the electromagnetic gas safety valve 13 is arranged on the gas delivery pipe 11;
the control component 2 comprises a pressure sensor 21, a preamplifier 22, an analog-digital converter 23, a singlechip 24 and an industrial computer 25; the pressure sensor 21 is arranged on the gas delivery pipe 11, and the pressure sensor 21, the preamplifier 22, the analog-digital converter 23, the singlechip 24 and the industrial computer 25 are communicated through signal transmission cable lines;
the air inlet end electromagnetic valve 12 and the electromagnetic gas safety valve 13 are electrically connected with the singlechip 24 through a relay and a triode;
a software control system is installed in the industrial computer and comprises an instruction input and data display module, a flow execution module and a process monitoring module; the instruction input and data display module is used for inputting a flow execution instruction from an industrial computer and displaying the working states of the air inlet electromagnetic valve 11 and the electromagnetic gas safety valve 13 and the pressure value in the air bag monitored by the pressure sensor 21 in real time in a data display mode; the flow executing module executes an operation instruction input from the instruction input and data display module so as to control the opening and closing of the air inlet electromagnetic valve 12 and the electromagnetic gas safety valve 13; the process monitoring module is used for monitoring the working states of the air inlet electromagnetic valve 11 and the electromagnetic gas safety valve 13 and the pressure value in the air bag detected by the pressure sensor 21 in real time, transmitting monitoring data to the instruction input and data display module and displaying the monitoring data through an industrial computer screen.
The inflation assembly 1 further comprises a pneumatic alarm 14 and a manual deflation valve 15, wherein the pneumatic alarm 14 and the manual deflation valve 15 are installed on the gas delivery pipe 11. The pressure sensor 21 is a resistance-type pressure sensor, the measuring range is 0-100 kPa, before the capsule is installed, 10kPa standard air pressure is used for air tightness test check, and the air bag is pre-inflated to 2kPa standard air pressure in the installation process, so that the air bag is automatically stopped after being unfolded and expanded; and then, filling oil to the oil conservator until the oil conservator reaches the standard oil level, starting to fill the oil to 5kPa, and then automatically stopping to finish oil drainage and oil level adjustment. The industrial computer 25 is a micro touch screen computer. The device also includes an outer case 3 for housing the inflation assembly 1 and the control assembly 2.
The components of the utility model are the existing mature technologies, wherein the gas delivery pipe 11, the inlet end electromagnetic valve 12, the electromagnetic gas safety valve 13, the air pressure alarm 14, the manual deflation valve 15, the pressure sensor 21, the preamplifier 22, the analog-digital converter 23, the single chip microcomputer 24, the industrial computer 25, the relay and the triode can be purchased through the market and are very easy to obtain; wherein, the gas delivery pipe 11 is a hose made of common insulating material, the inlet end electromagnetic valve 12 and the electromagnetic gas safety valve 13 are respectively model ZCT-3N type and ZNT-6N type gas electromagnetic valves, and the outer box 3 is made of insulating material and can be directly customized.
The utility model discloses a theory of operation is:
equipment assembling: according to the connection relation shown in the attached figure 1, an air inlet end electromagnetic valve 12, an electromagnetic gas safety valve 13, an air pressure alarm 14, a manual deflation valve 15 and a pressure sensor 21 are arranged on a gas conveying pipe 11 to form an inflation assembly 1; then the pressure sensor 21, the preamplifier 22, the analog-digital converter 23, the singlechip 24 and the industrial computer 25 are connected in sequence to form a control component 2, and the air inlet electromagnetic valve 12 and the electromagnetic gas safety valve 13 are electrically connected with the singlechip 24 through a relay and a triode; and the inflation assembly 1 and the control assembly 2 are both arranged in the outer box 3.
Inspecting an air bag: before the capsule is installed, the pressure sensor 21 and the control component 2 are used for checking and controlling the inflation pressure, firstly, the inflation device of the utility model is used for filling nitrogen into the air bag, the 10kPa standard air pressure is used for checking the air tightness test, firstly, the air bag is pre-inflated to the 2kPa standard air pressure, so that the air bag is unfolded and expanded, and after the preset air pressure is reached, the sensor 21 and the control system 2 automatically stop inflating; and then, filling oil to the oil conservator until the oil conservator reaches the standard oil level, starting to fill the oil to 5kPa, and then automatically stopping filling the oil to finish oil drainage and oil level adjustment.
Inflating the air bag: after the air bag inspection is finished, the inflating device is arranged between the air inlet of the air bag and the air outlet end of the air source steel cylinder, and the air tightness of the connecting part is ensured; the standard flow, the preset air pressure value and the overpressure alarm value of the inflation are preset through the inflation device; then an inflation operation instruction is input through a micro touch screen computer, the flow execution module of the software control system transmits the inflation operation instruction to the air inlet end electromagnetic valve 12 and the electromagnetic gas safety valve 13 through the single chip microcomputer 24, the triode and the relay in sequence, at the moment, the air inlet end electromagnetic valve 12 is opened, the electromagnetic gas safety valve 13 is closed, and the nitrogen gas starts to be continuously filled into the air bag; the whole air inlet process is monitored in real time by a process monitoring module of a software control system, the pressure sensor 21 feeds back and monitors the whole process in real time, a pressure signal is transmitted, converted and processed to a micro touch screen computer through the pressure sensor 21, a preamplifier 22, an analog-digital converter 23 and a single chip microcomputer 24, when the pressure reaches a preset pressure value, a flow execution module of the software control system automatically sends an air charging stopping instruction, the air charging stopping instruction is transmitted to an air inlet end electromagnetic valve 12 and an electromagnetic gas safety valve 13 through the single chip microcomputer 24, a triode and a relay in sequence, at the moment, the air inlet end electromagnetic valve 12 is closed, the electromagnetic gas safety valve 13 is also closed, and therefore the air charging process is stopped; if the inflation is too fast, the pressure of the air bag exceeds the preset pressure value, the pressure value can be monitored in real time and is displayed on the micro touch screen computer through the instruction input and data display module of the software operating system, so that when the monitored pressure is higher than the preset pressure value, the software control system can automatically transmit an instruction to control the electromagnetic gas safety valve 13 to deflate until the pressure reaches the preset pressure value, and then the electromagnetic gas safety valve 13 is closed; when the control component 2 and the software control system of the device are in failure and the pressure cannot be effectively controlled, if the air pressure reaches an overpressure alarm value, the air pressure alarm 14 sends an alarm signal, and at the moment, an operator can realize the exhausting function through the manual air release valve 15, so that the capsule is prevented from being continuously inflated by the inflation system.
It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention and not for limiting, and although the present invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail made in the principle of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides an oil invades formula transformer pillow formula capsule automatic charging device, sets up between the gas filler of air supply steel bottle and transformer pillow formula capsule, its characterized in that includes: an inflation assembly (1) and a control assembly (2);
the inflation assembly (1) comprises a gas delivery pipe (11), a gas inlet end electromagnetic valve (12) and an electromagnetic gas safety valve (13); the gas inlet end of the gas conveying pipe (11) is connected with a gas source steel cylinder through a gas inlet end electromagnetic valve (12), and the gas outlet end is communicated with the gas inlet of the transformer pillow type capsule; the electromagnetic gas safety valve (13) is arranged on the gas conveying pipe (11);
the control component (2) comprises a pressure sensor (21), a preamplifier (22), an analog-digital converter (23), a singlechip (24) and an industrial computer (25); the pressure sensor (21) is arranged on the gas conveying pipe, and the pressure sensor (21), the preamplifier (22), the analog-digital converter (23), the singlechip (24) and the industrial computer (25) are communicated through a signal transmission cable pipeline;
the air inlet end electromagnetic valve (12) and the electromagnetic gas safety valve (13) are electrically connected with the singlechip (24) through a relay and a triode;
a software control system is installed in the industrial computer and comprises an instruction input and data display module, a flow execution module and a process monitoring module; the instruction input and data display module is used for inputting a flow execution instruction from an industrial computer and displaying the working states of the air inlet end electromagnetic valve (12) and the electromagnetic gas safety valve (13) and the pressure value in the air bag monitored by the pressure sensor (21) in real time in a data display mode; the flow execution module executes an operation instruction input from the instruction input and data display module so as to control the opening and closing of the air inlet end electromagnetic valve (12) and the electromagnetic gas safety valve (13); the process monitoring module is used for monitoring the working states of the air inlet end electromagnetic valve (12) and the electromagnetic gas safety valve (13) in real time and the pressure value in the air bag detected by the pressure sensor (21), transmitting monitoring data to the instruction input and data display module and displaying the monitoring data through the industrial computer screen.
2. The oil-immersed transformer pillow capsule automatic inflation device of claim 1, wherein: the inflation assembly (1) further comprises an air pressure alarm (14) and a manual deflation valve (15), wherein the air pressure alarm (14) and the manual deflation valve (15) are installed on the gas conveying pipe (11).
3. The oil-immersed transformer pillow capsule automatic inflation device of claim 1, wherein: the pressure sensor (21) is a resistance-type pressure sensor, and the measuring range of the pressure sensor is 0-100 kPa.
4. The oil-immersed transformer pillow capsule automatic inflation device of claim 1, wherein: the industrial computer (25) is a micro touch screen computer.
5. The oil-immersed transformer pillow capsule automatic inflation device of claim 1, wherein: the inflatable control device also comprises an outer box (3) used for placing the inflatable component (1) and the control component (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080070.3U CN211475485U (en) | 2019-11-27 | 2019-11-27 | Oil-immersed transformer pillow type capsule automatic inflation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080070.3U CN211475485U (en) | 2019-11-27 | 2019-11-27 | Oil-immersed transformer pillow type capsule automatic inflation device |
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| CN211475485U true CN211475485U (en) | 2020-09-11 |
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| CN201922080070.3U Active CN211475485U (en) | 2019-11-27 | 2019-11-27 | Oil-immersed transformer pillow type capsule automatic inflation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906160A (en) * | 2019-11-27 | 2020-03-24 | 云南电网有限责任公司昆明供电局 | Oil-immersed transformer pillow type capsule automatic inflation device |
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2019
- 2019-11-27 CN CN201922080070.3U patent/CN211475485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906160A (en) * | 2019-11-27 | 2020-03-24 | 云南电网有限责任公司昆明供电局 | Oil-immersed transformer pillow type capsule automatic inflation device |
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