CN110906160A - Oil-immersed transformer pillow type capsule automatic inflation device - Google Patents

Oil-immersed transformer pillow type capsule automatic inflation device Download PDF

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Publication number
CN110906160A
CN110906160A CN201911184458.6A CN201911184458A CN110906160A CN 110906160 A CN110906160 A CN 110906160A CN 201911184458 A CN201911184458 A CN 201911184458A CN 110906160 A CN110906160 A CN 110906160A
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CN
China
Prior art keywords
gas
capsule
electromagnetic
pressure sensor
valve
Prior art date
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Pending
Application number
CN201911184458.6A
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Chinese (zh)
Inventor
杨彪
靳泰然
马成鹏
林云
田彪
李啟陆
王明华
屈军
张宝平
李森
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Kunming Power Supply Bureau of Yunnan Power Grid Co Ltd
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Kunming Power Supply Bureau of Yunnan Power Grid Co Ltd
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Application filed by Kunming Power Supply Bureau of Yunnan Power Grid Co Ltd filed Critical Kunming Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority to CN201911184458.6A priority Critical patent/CN110906160A/en
Publication of CN110906160A publication Critical patent/CN110906160A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F17C2250/075—Action when predefined value is reached when full
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/013—Reducing manufacturing time or effort
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

The invention provides an oil-immersed transformer pillow type automatic capsule inflation device, which comprises a gas delivery pipe, an air inlet end electromagnetic valve and an electromagnetic gas safety valve, wherein the air inlet end electromagnetic valve is arranged on the gas delivery pipe; 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 invention has simple and convenient use, can realize the automation of the whole inflation process, can prevent the over-pressure or under-pressure of the inflation of the capsule, improves the working efficiency and the reliability, and ensures the safe operation of an electric power system.

Description

Oil-immersed transformer pillow type capsule automatic inflation device
Technical Field
The invention belongs to the technical field of installation and inflation of main transformer capsules of an electric power system, and particularly relates to an automatic inflation device for pillow-type capsules of an oil-immersed transformer.
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.
Disclosure of Invention
The invention mainly aims to solve the problems in the prior art and provide an oil-immersed transformer pillow type capsule inflating device which can realize that the standard air pressure is preset in the inflating process, the overpressure automatic protection is realized, the automatic stop is realized after the inflating is finished, the whole process of manpower is not needed, the device is provided with a standard capsule installation program, and the operation of the damaged capsule and the operation of the capsule with diseases can be effectively avoided.
In order to achieve the purpose, the invention adopts the technical scheme that:
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 working principle of the invention is as follows:
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, nitrogen is firstly inflated into the air bag through the inflation device, the air tightness test is checked by using the standard air pressure of 10kPa, the air bag is firstly pre-inflated to the standard air pressure of 2kPa to expand and swell, and the sensor 21 and the control system 2 automatically stop inflating after the preset air pressure is reached; 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 invention has the beneficial effects that:
1. the invention can monitor the pressure state in the capsule in real time in the process of inflation and control the pressure of each stage of the capsule, when overpressure occurs, the software control system and the control assembly can automatically close the electromagnetic valve at the air inlet end and the electromagnetic gas safety valve, thereby preventing the capsule from being damaged due to too fast inflation flow rate 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. According to the invention, the inflation state of the capsule and the pressure state in the capsule are monitored in real time through the control assembly and the software control system, so that a capsule installation and maintenance worker can carry out work according to a standardized operation flow, the whole inflation process is preset through a control program to realize whole-process automation, manual whole-process participation, under-pressure protection and over-pressure automatic protection are not needed, and the automatic shutdown is realized after the inflation is finished.
3. The invention has the advantages of convenient and rapid installation, simple and convenient capsule inflation, effective shortening of maintenance time, industrial artificial intelligence standard operation method, improvement of working efficiency, elimination of problem capsules, operation of unqualified installed capsules during operation, guarantee of safe and stable operation of the oil-immersed transformer, improvement of working efficiency and reliability, guarantee of safe operation of a power system, provision of enterprise standardized operation method, and filling of technical blank in the technical field.
Drawings
The invention is further illustrated with reference to the following figures 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 invention is further illustrated by the following examples in conjunction with the accompanying drawings.
As shown in fig. 1-, an oil-immersed transformer pillow type capsule automatic charging device is arranged between an air source steel cylinder and a charging port of a transformer pillow type capsule, and is characterized by comprising: 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 parts related to the invention are all 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 singlechip 24, the industrial computer 25, the relay and the triode can be purchased in 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 working principle of the invention is as follows:
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, nitrogen is firstly inflated into the air bag through the inflation device, the air tightness test is checked by using the standard air pressure of 10kPa, the air bag is firstly pre-inflated to the standard air pressure of 2kPa to expand and swell, and the sensor 21 and the control system 2 automatically stop inflating after the preset air pressure is reached; 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 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 on the principle of the present invention are within the protective 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 delivery pipe (11) is connected with a gas source steel cylinder through a gas-filled 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 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 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 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.
2. The oil-immersed transformer pillow capsule inflator 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 inflator of claim 1, wherein: the pressure sensor (23) 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 inflator of claim 1, wherein: the industrial computer (25) is a micro touch screen computer.
5. The oil-immersed transformer pillow capsule inflator 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).
CN201911184458.6A 2019-11-27 2019-11-27 Oil-immersed transformer pillow type capsule automatic inflation device Pending CN110906160A (en)

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Application Number Priority Date Filing Date Title
CN201911184458.6A CN110906160A (en) 2019-11-27 2019-11-27 Oil-immersed transformer pillow type capsule automatic inflation device

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CN110906160A true CN110906160A (en) 2020-03-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114668645A (en) * 2022-04-21 2022-06-28 四川千里倍益康医疗科技股份有限公司 Pneumatic massager and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207458721U (en) * 2017-10-30 2018-06-05 广西电网有限责任公司电力科学研究院 A kind of power transformer oil conservater capsule air charging system
CN109000858A (en) * 2018-06-20 2018-12-14 国家电网公司 The complete detection system of Multifunction transformer
CN109559872A (en) * 2018-12-21 2019-04-02 云南电网有限责任公司电力科学研究院 Transformer capsule-type conservator with pressure compensation and its control monitoring method
CN109916577A (en) * 2019-03-28 2019-06-21 国家电网有限公司 Conservator capsule detection method, system and terminal device
CN211475485U (en) * 2019-11-27 2020-09-11 云南电网有限责任公司昆明供电局 Oil-immersed transformer pillow type capsule automatic inflation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207458721U (en) * 2017-10-30 2018-06-05 广西电网有限责任公司电力科学研究院 A kind of power transformer oil conservater capsule air charging system
CN109000858A (en) * 2018-06-20 2018-12-14 国家电网公司 The complete detection system of Multifunction transformer
CN109559872A (en) * 2018-12-21 2019-04-02 云南电网有限责任公司电力科学研究院 Transformer capsule-type conservator with pressure compensation and its control monitoring method
CN109916577A (en) * 2019-03-28 2019-06-21 国家电网有限公司 Conservator capsule detection method, system and terminal device
CN211475485U (en) * 2019-11-27 2020-09-11 云南电网有限责任公司昆明供电局 Oil-immersed transformer pillow type capsule automatic inflation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114668645A (en) * 2022-04-21 2022-06-28 四川千里倍益康医疗科技股份有限公司 Pneumatic massager and control method thereof
CN114668645B (en) * 2022-04-21 2023-10-20 四川千里倍益康医疗科技股份有限公司 Pneumatic massager and control method thereof

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