CN113281427A - Main transformer oil chromatogram on-line monitoring system - Google Patents
Main transformer oil chromatogram on-line monitoring system Download PDFInfo
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- CN113281427A CN113281427A CN202110422672.1A CN202110422672A CN113281427A CN 113281427 A CN113281427 A CN 113281427A CN 202110422672 A CN202110422672 A CN 202110422672A CN 113281427 A CN113281427 A CN 113281427A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 93
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
- G01N2030/8809—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample
- G01N2030/884—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample organic compounds
- G01N2030/8854—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample organic compounds involving hydrocarbons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
- G01N2030/8809—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample
- G01N2030/8859—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample inorganic compounds
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a main transformer oil chromatogram on-line monitoring system, which comprises: a box body; one end of the oil suction pipe is arranged in the middle of the bottom end of the right side of the box body; the oil pump is arranged on the right side of the bottom of the inner cavity of the box body; the oil-gas separator is arranged at the right upper corner of the rear side of the inner cavity of the box body; the check valve is fixedly arranged on the left side of the oil-gas separator; the return pipe is arranged at the bottom end of the right side of the box body and is positioned at the rear side of the oil suction pipe. This main transformer oil chromatogram on-line monitoring system can be at any time with gathering sample extraction trouble gas and carry out the analysis, realizes the real-time running state control of transformer, potential trouble in the discovery power transformer operation in-process in time forms perfect reliable analysis report, and the mounting bracket can shift out to outside the box from the box inner chamber steadily, and at the high decline of removal in-process mounting bracket, thereby the operating personnel of being convenient for regularly maintains or changes labour saving and time saving to the gas holder.
Description
Technical Field
The invention relates to the technical field of oil chromatography monitoring, in particular to an on-line monitoring system for the oil chromatography of a main transformer.
Background
The oil chromatogram on-line monitoring system is a precision device integrating control, measurement and analysis technologies, carries out on-line monitoring on oil-immersed high-voltage devices such as power transformers, electric arc furnace transformers, reactors, mutual inductors and the like with voltage levels of 110kV and above, and accurately detects the concentration and the variation trend of various fault characteristic gases dissolved in insulating oil on line in time, and according to the requirements of GB/T7252-2001 transformer oil dissolved gas analysis and judgment guide rules, the oil chromatogram on-line monitoring system must be capable of analyzing and judging fault gases in electrical equipment, wherein fibers are subjected to pyrolysis to generate carbon monoxide, carbon dioxide and water vapor; releasing ethylene, ethane and methane when the transformer oil is overheated; when the oil is subjected to extreme electrical stresses (such as an electric arc), the following gases are released: hydrogen, acetylene, methane and ethylene, wherein hydrogen and carbon monoxide are important fault gases, are most obvious in change along with temperature, have low solubility and are main detection objects of a gas chromatography analysis system;
at present, the method for regularly detecting the oil chromatogram of the transformer is widely adopted in the power industry, fault gas is extracted from sampled oil, the oil needs to be vibrated, the solubility of the fault gas in the oil is reduced, thereby the fault gas is extracted, the detection process is complex, not little difficulty is brought to development and popularization of monitoring work, in addition, the fault gas pollutes the environment, the fault gas cannot be directly discharged into the atmosphere, the detected waste gas needs to be collected by a gas storage tank, the gas storage tank is regularly replaced by an operator, and the gas storage tank is put into a box body, so that the replacement and the maintenance are inconvenient, time and labor are wasted.
Disclosure of Invention
The invention aims to provide a main transformer oil chromatography on-line monitoring system, which at least solves the problems of difficulty in extracting fault gas and inconvenience in replacing a gas storage tank in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a main transformer oil chromatogram on-line monitoring system includes: a box body; one end of the oil suction pipe is arranged in the middle of the bottom end of the right side of the box body; the oil pump is arranged on the right side of the bottom of the inner cavity of the box body; the oil-gas separator is arranged at the right upper corner of the rear side of the inner cavity of the box body; the check valve is fixedly arranged on the left side of the oil-gas separator; the return pipe is arranged at the bottom end of the right side of the box body and is positioned at the rear side of the oil suction pipe; the data acquisition device is arranged at the left upper corner of the rear side of the inner cavity of the box body; the PLC controller is arranged on the front side of the oil-gas separator, and the oil pump and the data acquisition device are electrically connected with the PLC controller; the gas storage tank is communicated with the data acquisition device through a hose;
the top of the left side of the oil-gas separator is communicated with the top end of a check valve through a pipeline, the bottom end of the check valve is communicated with the left end of an oil pump through a pipeline, the oil pump is communicated with the oil suction pipe, the data acquisition device is communicated with the top end of the oil-gas separator through a connecting pipe, a return pipe is communicated with the bottom end of the oil-gas separator, the oil pump extracts oil from the oil-immersed power transformer through the oil suction pipe and injects the oil into the oil-gas separator through the check valve, separated fault gas is injected into the data acquisition device from the top of the oil-gas separator through the connecting pipe, and the rest oil flows out from the bottom of the oil-gas separator through the return pipe;
main transformer oil chromatogram on-line monitoring system, its characterized in that still includes: the gas storage tank taking-out mechanism is fixedly arranged on the left side of the bottom of the inner cavity of the box body, and the gas storage tank is fixedly arranged at the top end of the gas storage tank taking-out mechanism;
the oil-gas separator includes: the separator shell is fixedly arranged at the right upper corner of the rear side of the inner cavity of the box body; the separation assembly is adaptive to be inserted into the inner cavity of the separator shell; the upper end cover is fixedly arranged at the top end of the separator shell, and the connecting pipe is fixedly arranged at the top end of the upper end cover; the lower end cover is fixedly arranged at the bottom end of the separator shell, and the return pipe is fixedly arranged in the middle of the bottom end of the lower end cover; the oil filling port is formed in the front end of the top of the left side of the separator shell; the oil filling pipe is inserted into the inner cavity of the oil filling port and is communicated with a pipeline at the top of the check valve;
the gas holder take-out mechanism includes: the fixed seat is fixedly arranged on the left side of the bottom of the inner cavity of the box body; the two connecting rod assemblies are respectively and fixedly arranged on the left side wall and the right side wall of the inner cavity of the fixed seat; the mounting bracket is fixedly arranged at the front ends of the inner sides of the two connecting rod assemblies, and the gas storage tank is fixedly arranged at the top end of the mounting bracket through a binding band.
Preferably, the separation assembly comprises: the cylinder body is in adaptive insertion connection with the side wall of the inner cavity of the separator shell, the side wall of the cylinder body is provided with a through hole, and the oil injection pipe is in adaptive insertion connection with the side wall of the cylinder body; the spiral partition plate is arranged on the side wall of the inner cavity of the cylinder body and rotates anticlockwise from top to bottom; the inclined baffle is arranged on the inner side of the spiral partition plate; the supporting columns are arranged at the bottom of the barrel body along the circumferential direction and intersect with the spiral partition plate; wherein fluid from the oiling pipe injection barrel inner chamber and along the spiral baffle spiral downward flow, in flow process fluid collides with the support column to make trouble gas discharge from fluid, and upwards flow from the middle part through-hole of spiral baffle, the slope baffle is used for blockking fluid from the middle part through-hole downward flow of spiral baffle, thereby makes fluid collide with the support column as far as possible.
Preferably, the outer wall of the barrel is provided with a plurality of ribs along the circumferential direction, the inner cavity of the separator shell is provided with a plurality of grooves along the circumferential direction, and the ribs of the barrel are in adaptive splicing with the grooves of the separator shell.
Preferably, the connecting rod assembly includes: the fixing plate is fixedly arranged on the side wall of the inner cavity of the fixing seat; the long connecting rod is arranged in the middle of the inner side of the fixing plate through a pin shaft; one end of the short connecting rod is arranged on the inner side of the fixed plate through a pin shaft and is positioned on the front side of the bottoms of the long two rods; the rear end of the top of the outer side of the moving plate is connected with one end of the long connecting rod through a pin shaft, the front end of the bottom of the outer side of the moving plate is connected with the other end of the short connecting rod through a pin shaft, and the mounting rack is fixedly mounted on the inner sides of the moving plates of the two connecting rod assemblies; and the damping gas strut springs are two in number, one ends of the damping gas strut springs are respectively and rotatably arranged at the rear end of the top and the front end of the bottom of the inner side of the fixed plate, and the other ends of the damping gas strut springs are respectively and rotatably arranged at the other end and the middle position of the long connecting rod.
Preferably, the distance between the two pins of the long connecting rod is equal to the distance between the two pins of the short connecting rod.
Preferably, the damping gas strut spring comprises a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and filler, one end of the pressure cylinder of the damping gas strut spring is rotatably connected with the fixing plate, and one end of the piston rod of the damping gas strut spring is rotatably connected with the long connecting rod.
Preferably, the connection positions of the two damping gas supporting springs and the long connecting rod are symmetrical relative to the pin shaft at the rear side of the long connecting rod.
The invention provides a main transformer oil chromatogram on-line monitoring system, which has the beneficial effects that:
1. according to the invention, the oil pump is used for extracting oil from the oil-immersed power transformer through the oil suction pipe, the oil is injected into the oil-gas separator through the check valve, the separated fault gas is injected into the data acquisition device from the top of the oil-gas separator through the connecting pipe, the residual oil flows back to the oil-immersed power transformer from the bottom of the oil-gas separator through the return pipe, the collected sample can be extracted to analyze the fault gas at any time, and the oil with gas removed is returned to the oil-immersed power transformer again, so that the running safety and reliability of the transformer can be effectively ensured, the real-time running state monitoring of the transformer can be realized, potential faults in the running process of the power transformer can be timely discovered, and a perfect and reliable analysis report can be formed.
2. According to the invention, under the common limiting action of the long connecting rod and the short connecting rod, the mounting rack can drive the gas storage tank to translate downwards from the front side, and the rotating speed of the long connecting rod is limited by the spring gas strut damping, so that the mounting rack can be stably moved out of the box body from the inner cavity of the box body, and the height of the mounting rack is reduced in the moving process, thereby facilitating an operator to regularly maintain or replace the gas storage tank, and saving time and labor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top sectional view of the present invention;
FIG. 4 is a right side view of the present invention;
FIG. 5 is a right side sectional view of the gas tank removing mechanism;
FIG. 6 is a schematic structural diagram of an oil-gas separator;
FIG. 7 is a front sectional view of the oil separator;
fig. 8 is a top sectional view of the oil separator.
In the figure: 2. the device comprises a box body, 3, a box door, 4, an oil suction pipe, 5, an oil pump, 6, a check valve, 7, an oil-gas separator, 71, a separator shell, 72, a separation component, 721, a barrel, 722, a spiral partition plate, 723, an inclined baffle plate, 724, a support column, 73, an upper end cover, 74, a lower end cover, 75, an oil injection port, 76, an oil injection pipe, 8, a return pipe, 9, a connecting pipe, 10, a data acquisition device, 11, an air storage tank taking-out mechanism, 111, a fixed seat, 112, a connecting rod component, 1121, a fixed plate, 1122, a long connecting plate, 1123, a short connecting plate, 1124, a moving plate, 1125, a damping gas supporting spring, 113, a mounting frame, 114, a binding band, 12, a hose, 13, an air storage tank, 14 and a PLC.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a main transformer oil chromatogram on-line monitoring system includes: the device comprises a box body 2, a box door 3, an oil suction pipe 4, an oil pump 5, a check valve 6, an oil-gas separator 7, a backflow pipe 8, a connecting pipe 9, a data acquisition device 10, a gas storage tank taking-out mechanism 11, a hose 12, a gas storage tank 13 and a PLC (programmable logic controller) 14, wherein one end of the oil suction pipe 4 is arranged in the middle position of the bottom end of the right side of the box body 2, the oil pump 5 is arranged on the right side of the bottom of the inner cavity of the box body 2, the oil-gas separator 7 is arranged at the right upper corner of the rear side of the inner cavity of the box body 2, the check valve 6 is fixedly arranged on the left side of the oil-gas separator 7, the check valve 6 (also known as a check valve) is a valve which automatically opens and closes a valve clack depending on the flowing of a medium and is used for preventing, the check valve can also be used for supplying a pipeline for an auxiliary system in which the pressure can rise to exceed the system pressure, the return pipe 8 is arranged at the bottom end of the right side of the box body 2 and is positioned at the rear side of the oil suction pipe 4, the oil suction pipe 4 and the return pipe 8 are both connected with an oil-immersed power transformer, the data acquisition device 10 is arranged at the upper left corner of the rear side of the inner cavity of the box body 2, the PLC controller 14 is arranged at the front side of the oil-gas separator 7, the oil pump 5 and the data acquisition device 10 are both electrically connected with the PLC controller 14, the PLC controller 14 is formed by modularly combining an internal CPU, an instruction and data memory, an input and output unit, a power supply module, a digital analog unit and the like, instructions for executing operations such as logic operation, sequence control, timing, counting, arithmetic operation and the like are stored in the PLC controller, and various types of mechanical equipment, the gas storage tank 13 is communicated with the data acquisition device 10 through a hose 12, the gas storage tank taking-out mechanism 11 is fixedly arranged on the left side of the bottom of the inner cavity of the box body 2, and the gas storage tank 13 is fixedly arranged at the top end of the gas storage tank taking-out mechanism 11;
the top of the left side of the oil-gas separator is communicated with the top end of a check valve 6 through a pipeline, the bottom end of the check valve 6 is communicated with the left end of an oil pump 5 through a pipeline, the oil pump 5 is communicated with an oil suction pipe 4, a data acquisition device 10 is communicated with the top end of the oil-gas separator 7 through a connecting pipe 9, a return pipe 8 is communicated with the bottom end of the oil-gas separator 7, the oil pump 5 extracts oil from an oil-immersed power transformer through the oil suction pipe 4 and injects the oil into the oil-gas separator 7 through the check valve 6, separated fault gas is injected into the data acquisition device 10 from the top of the oil-gas separator 7 through the connecting pipe 9, and the rest oil flows out from the bottom of the oil-gas separator 7 through the return pipe 8;
the data acquisition device 10 is provided with a negative pressure device and a detection device, the negative pressure device extracts fault gas separated by the oil-gas separator 7 through a connecting pipe 9 and detects the fault gas, the detection device 10 adopts a single gas-sensitive sensor to simultaneously detect the content of hydrogen, carbon monoxide, methane, ethane, ethylene and acetylene dissolved in transformer oil, and the detected waste gas is injected into the inner cavity of the gas storage tank;
specifically, the oil separator 7 includes: the separator comprises a separator shell 71, a separation component 72, an upper end cover 73, a lower end cover 74, an oil filling port 75 and an oil filling pipe 76, wherein the separator shell 71 is fixedly arranged at the right upper corner of the rear side of an inner cavity of the box body 2, the separation component 72 is matched and inserted into the inner cavity of the separator shell 71, the upper end cover 73 is fixedly arranged at the top end of the separator shell 71, a connecting pipe 9 is fixedly arranged at the top end of the upper end cover 73, the lower end cover 74 is fixedly arranged at the bottom end of the separator shell 71, a return pipe 8 is fixedly arranged at the middle position of the bottom end of the lower end cover 74, the oil filling port 75 is arranged at the front end of the left top of the separator shell 71, the oil filling pipe 76 is inserted into the inner cavity of the oil filling port 75, the oil filling pipe 76 is communicated with a pipeline at the top of the check valve 6, and a sealing ring is arranged between the oil filling pipe 76 and the oil filling port 75 in specific implementation, so that the sealing performance between the oil filling pipe 76 and the separator shell 71 is ensured;
specifically, the gas tank take-out mechanism includes: fixing base 111, link assembly 112, mounting bracket 113 and bandage 114, fixing base 111 fixed mounting is in the left side of the inner chamber bottom of box 2, link assembly 112 is two, lateral wall about respectively fixed mounting in the inner chamber of fixing base 111, mounting bracket 113 fixed mounting is in the inboard front end of two link assembly 112, and gas holder 13 passes through bandage 114 fixed mounting in the top of mounting bracket 113, mounting bracket 113 can be through link assembly 112 limiting displacement to the outside parallel translation of box 2 down.
Preferably, the separating assembly 72 further comprises: the oil-gas separator comprises a cylinder body 721, a spiral partition plate 722, an inclined baffle 723 and support columns 724, wherein the cylinder body 721 is in adaptive insertion connection with the side wall of an inner cavity of a separator shell 71, the side wall of the cylinder body 721 is provided with a through hole, an oil filling pipe 76 is in adaptive insertion connection with the side wall of the cylinder body 721, the spiral partition plate 722 is arranged on the side wall of the inner cavity of the cylinder body 721, the spiral partition plate 722 rotates anticlockwise from top to bottom, the inclined baffle 723 is arranged on the inner side of the spiral partition plate 722, the support columns 724 are arranged at the bottom of the cylinder body 722 in the circumferential direction respectively, and the support columns 724 and the spiral partition plate 722 are intersected with each other;
more specifically, oil is injected into the cavity of the cylinder 721 from the oil filling pipe 76 and flows spirally downward along the spiral partition 722, the oil collides with the support post 724 during the flowing process, so that the fault gas is discharged from the oil and flows upward from the central through hole of the spiral partition 722, and the inclined baffle 723 is used for blocking the oil from flowing downward from the central through hole of the spiral partition 722, so that the oil collides with the support post 724 as much as possible.
Preferably, a plurality of ribs are circumferentially arranged on the outer wall of the cylinder 721, a plurality of grooves are circumferentially arranged in the inner cavity of the separator casing 71, and the ribs of the cylinder 721 are inserted into the grooves of the separator casing 71, so as to ensure that the through holes in the side wall of the cylinder 721 correspond to the oil filling ports 75 during the installation of the cylinder 721, and thus the oil filling pipe 76 can fill the oil into the inner cavity of the cylinder 721.
Preferably, the connecting rod assembly 112 further includes: a fixed plate 1121, a long connecting plate 1122, a short connecting plate 1123, a moving plate 1124 and damping gas strut springs 1125, wherein the fixed plate 1121 is fixedly installed on the inner cavity side wall of the fixed seat 111, the long connecting rod 1122 is installed at the middle position of the inner side of the fixed plate 1121 through a pin shaft, one end of the short connecting rod 1123 is installed at the inner side of the fixed plate 1121 through a pin shaft and is located at the front side of the bottoms of the long connecting rods 1122, the back end of the top of the outer side of the moving plate 1124 is connected with one end of the long connecting rod 1122 through a pin shaft, the front end of the bottom of the outer side of the moving plate 1124 is connected with the other end of the short connecting rod 1123 through a pin shaft, the mounting rack 113 is fixedly installed at the inner side of the moving plates 114 of the two connecting rods 112, the number of the damping gas strut springs 1125 is two, one end of each of the damping gas strut springs is rotatably installed at the back end and the bottom end of the inner side of the fixed plate 1121, and the other end of each connecting rod 1122, and the other end of each connecting rod 1125 is rotatably installed, and each damping gas strut spring 1125 is capable of supporting each damping gas strut spring 1125, Buffering, braking, the industrial accessories of functions such as altitude mixture control and angle modulation, when changing gas holder 13, pulling mounting bracket 113 moves to the front side, long connecting rod 1122 and short connecting rod 1123 rotate downwards around the round pin axle, under long connecting rod 1122 and short connecting rod 1123 connect limiting displacement around round pin axle pivoted downwards, mounting bracket 113 carries out parallel translation to the front side below, damping gas props spring 1125 atress is tensile at this in-process, damping gas props spring 112 and offers long connecting rod 1122 to obstruct the rotatory resistance of long connecting rod 1122, be used for balancing mounting bracket 113's self gravity, guarantee the steady downstream of mounting bracket 113, thereby be convenient for operating personnel to change gas holder 13.
Preferably, a distance between two pins of the long link 1122 is equal to a distance between two pins of the short link 1123, so that the mounting bracket 113 is prevented from being angled during movement, and stability of the mounting bracket 113 during movement is ensured.
Preferably, the damping gas strut spring 1125 includes a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and a filler, wherein one end of the pressure cylinder of the damping gas strut spring 1125 is rotatably connected to the fixing plate 1121, and one end of the piston rod of the damping gas strut spring 1125 is rotatably connected to the long link 1122, so that the long link 1122 can resist the self-weight of the mounting frame 113 and the air tank 13.
As a preferable scheme, the connection positions of two damping gas strut springs 1125 and long link 1122 are symmetrical with respect to the pin at the rear side of long link 1122, so that the same stress on damping gas strut springs 1125 is ensured, and the service lives of the damping gas strut springs 1125 are unified.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a main transformer oil chromatogram on-line monitoring system which characterized in that includes:
a box body (2);
one end of the oil suction pipe (4) is arranged in the middle of the bottom end of the right side of the box body (2);
the oil pump (5) is arranged on the right side of the bottom of the inner cavity of the box body (2);
the oil-gas separator (7) is arranged at the right upper corner of the rear side of the inner cavity of the box body (2);
the check valve (6) is fixedly arranged on the left side of the oil-gas separator (7);
the return pipe (8) is arranged at the bottom end of the right side of the box body (2) and is positioned at the rear side of the oil suction pipe (4);
the data acquisition device (10) is arranged at the left upper corner of the rear side of the inner cavity of the box body (2);
the PLC controller (14) is installed on the front side of the oil-gas separator (7), and the oil pump (5) and the data acquisition device (10) are electrically connected with the PLC controller (14);
the gas storage tank (13) is communicated with the data acquisition device (10) through a hose (12);
the top of the left side of the oil-gas separator is communicated with the top end of a check valve (6) through a pipeline, the bottom end of the check valve (6) is communicated with the left end of an oil pump (5) through a pipeline, the oil pump (5) is communicated with the oil suction pipe (4), the data acquisition device (10) is communicated with the top end of the oil-gas separator (7) through a connecting pipe (9), a return pipe (8) is communicated with the bottom end of the oil-gas separator (7), the oil pump (5) extracts oil from the oil-immersed power transformer through the oil suction pipe (4) and injects the oil into the oil-gas separator (7) through the check valve (6), separated fault gas is injected into the data acquisition device (10) from the top of the oil-gas separator (7) through the connecting pipe (9), and residual oil flows out from the bottom of the oil-gas separator (7) through the return pipe (8);
main transformer oil chromatogram on-line monitoring system, its characterized in that still includes:
the gas storage tank taking-out mechanism (11) is fixedly arranged on the left side of the bottom of the inner cavity of the box body (2), and the gas storage tank (13) is fixedly arranged at the top end of the gas storage tank taking-out mechanism (11);
the gas-oil separator (7) includes:
the separator shell (71) is fixedly arranged at the right upper corner of the rear side of the inner cavity of the box body (2);
a separator assembly (72) adapted to be inserted into the interior cavity of the separator housing (71);
the upper end cover (73) is fixedly arranged at the top end of the separator shell (71), and the connecting pipe (9) is fixedly arranged at the top end of the upper end cover (73);
the lower end cover (74) is fixedly arranged at the bottom end of the separator shell (71), and the return pipe (8) is fixedly arranged at the middle position of the bottom end of the lower end cover (74);
an oil filling port (75) opened at the front end of the top of the left side of the separator case (71);
the oil filling pipe (76) is inserted into the inner cavity of the oil filling port (75), and the oil filling pipe (76) is communicated with a pipeline at the top of the check valve (6);
the gas holder take-out mechanism includes:
the fixing seat (111) is fixedly arranged on the left side of the bottom of the inner cavity of the box body (2);
the two connecting rod assemblies (112) are fixedly arranged on the left side wall and the right side wall of the inner cavity of the fixed seat (111) respectively;
and the mounting frame (113) is fixedly arranged at the front ends of the inner sides of the two connecting rod assemblies (112), and the air storage tank (13) is fixedly arranged at the top end of the mounting frame (113) through a binding belt (114).
2. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 1, characterized in that: the separation assembly (72) comprises:
the cylinder body (721) is in adaptive insertion connection with the side wall of the inner cavity of the separator shell (71), a through hole is formed in the side wall of the cylinder body (721), and the oil filling pipe (76) is in adaptive insertion connection with the side wall of the cylinder body (721);
the spiral partition plate (722) is arranged on the side wall of the inner cavity of the cylinder body (721), and the spiral partition plate (722) rotates anticlockwise from top to bottom;
an inclined baffle (723) provided inside the spiral partition (722);
the supporting columns (724) are arranged at the bottom of the cylinder body (722) in the circumferential direction respectively, and the supporting columns (724) are intersected with the spiral partition plate (722);
wherein oil is injected into the inner cavity of the cylinder body (721) from the oil injection pipe (76) and flows downwards along the spiral partition plate (722), the oil collides with the support pillar (724) in the flowing process, so that fault gas is discharged from the oil and flows upwards from the middle through hole of the spiral partition plate (722), and the inclined baffle plate (723) is used for preventing the oil from flowing downwards from the middle through hole of the spiral partition plate (722), so that the oil collides with the support pillar (724) as much as possible.
3. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 2, characterized in that: the outer wall of barrel (721) is provided with a plurality of bead along circumference, a plurality of recess has been seted up along circumference to the inner chamber of separator shell (71), just the bead of barrel (721) is pegged graft with the recess looks adaptation of separator shell (71).
4. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 1, characterized in that: the connecting rod assembly (112) includes:
the fixing plate (1121) is fixedly arranged on the side wall of the inner cavity of the fixing seat (111);
a long connecting rod (1122) which is arranged at the middle position of the inner side of the fixing plate (1121) through a pin shaft;
one end of the short connecting rod (1123) is arranged on the inner side of the fixing plate (1121) through a pin shaft and is positioned on the front side of the bottoms of the long two rods (1122);
the rear end of the top of the outer side of the moving plate (1124) is connected with one end of the long connecting rod (1122) through a pin shaft, the front end of the bottom of the outer side of the moving plate (1124) is connected with the other end of the short connecting rod (1123) through a pin shaft, and the mounting rack (113) is fixedly mounted on the inner sides of the moving plates (114) of the two connecting rod assemblies (112);
and the number of the damping gas supporting springs (1125) is two, one end of each damping gas supporting spring is rotatably arranged at the rear end of the top and the front end of the bottom of the inner side of the fixing plate (1121), and the other end of each damping gas supporting spring is rotatably arranged at the other end and the middle position of the long connecting rod (1122).
5. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 4, characterized in that: the distance between the two pins of the long connecting rod (1122) is equal to the distance between the two pins of the short connecting rod (1123).
6. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 4, characterized in that: the damping gas strut spring (1125) comprises a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and filler, one end of the pressure cylinder of the damping gas strut spring (1125) is rotatably connected with the fixing plate (1121), and one end of the piston rod of the damping gas strut spring (1125) is rotatably connected with the long connecting rod (1122).
7. The on-line monitoring system for the oil chromatogram of the main transformer according to claim 4, characterized in that: the connection positions of the two damping gas supporting springs (1125) and the long connecting rod (1122) are symmetrical relative to a pin shaft on the rear side of the long connecting rod (1122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422672.1A CN113281427A (en) | 2021-04-19 | 2021-04-19 | Main transformer oil chromatogram on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422672.1A CN113281427A (en) | 2021-04-19 | 2021-04-19 | Main transformer oil chromatogram on-line monitoring system |
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| Publication Number | Publication Date |
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| CN113281427A true CN113281427A (en) | 2021-08-20 |
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| CN202110422672.1A Pending CN113281427A (en) | 2021-04-19 | 2021-04-19 | Main transformer oil chromatogram on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116550013A (en) * | 2023-07-10 | 2023-08-08 | 广东电网有限责任公司佛山供电局 | Oil-gas separation device, method and oil chromatographic analysis device |
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| CN111595782A (en) * | 2020-05-26 | 2020-08-28 | 国网天津市电力公司电力科学研究院 | Transformer oil sleeve insulating oil on-line monitoring device |
| CN111766108A (en) * | 2020-07-02 | 2020-10-13 | 国家电网有限公司 | Safe and efficient oil sample collection device |
| CN111804106A (en) * | 2020-07-20 | 2020-10-23 | 梁超 | Oil-gas separation device based on liquefied petroleum production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6394182B1 (en) * | 1999-06-08 | 2002-05-28 | Petroleo Brasileiro S.A. - Petrobras | Oil-gas separating method and bottom-hole spiral separator with gas escape channel |
| CN106526055A (en) * | 2016-12-13 | 2017-03-22 | 贵州电网有限责任公司都匀供电局 | No-load gas-oil chromatography online monitoring system |
| CN111595782A (en) * | 2020-05-26 | 2020-08-28 | 国网天津市电力公司电力科学研究院 | Transformer oil sleeve insulating oil on-line monitoring device |
| CN111766108A (en) * | 2020-07-02 | 2020-10-13 | 国家电网有限公司 | Safe and efficient oil sample collection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20210820 |