CN114113549A - Online monitoring and purifying operation integrated system for lubricating oil and liquid of hydroelectric generating set - Google Patents
Online monitoring and purifying operation integrated system for lubricating oil and liquid of hydroelectric generating set Download PDFInfo
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- CN114113549A CN114113549A CN202111343041.7A CN202111343041A CN114113549A CN 114113549 A CN114113549 A CN 114113549A CN 202111343041 A CN202111343041 A CN 202111343041A CN 114113549 A CN114113549 A CN 114113549A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 claims abstract description 611
- 238000005070 sampling Methods 0.000 claims abstract description 136
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000012806 monitoring device Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000004880 explosion Methods 0.000 claims description 21
- 238000000746 purification Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 12
- 101000994629 Oryctolagus cuniculus Potassium voltage-gated channel subfamily A member 2 Proteins 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000011164 primary particle Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000011163 secondary particle Substances 0.000 claims 2
- 238000012360 testing method Methods 0.000 description 11
- 238000011403 purification operation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
- 238000010977 unit operation Methods 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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Abstract
The invention discloses a hydroelectric generating set lubricating oil liquid on-line monitoring and purifying operation integrated system, which comprises a sampling unit, an oil liquid on-line monitoring device, an oil inlet and return switching device and a controller system, wherein the sampling unit is used for sampling lubricating oil liquid; the sampling unit is used for sampling the oil guide basin, and the oil online monitoring device is used for controlling the sampling unit in real time; the oil inlet and return switching device is used for feeding and returning oil to three oil basins of an upper guide, a lower guide and a water guide in the water turbine generator set, and simultaneously shares one oil filter to realize the purpose of online oil filtering; the controller system is used for controlling the oil inlet and return switching device in real time.
Description
Technical Field
The invention relates to a hydroelectric generating set lubricating oil liquid on-line monitoring and purification operation integrated system, which is used for providing support for intelligent power station construction and oil supervision and management mechanisms.
Background
The hydroelectric generating set is used as an important energy conversion form, and the stress and friction of the rotating part and the fixed part are completed and realized through the guide bearing, the oil basin thereof, the thrust bearing and the oil basin thereof. The guide bearing and the thrust bearing use the medium which carries heat and has the function of lubricating the bearing as L-TSA turbine oil.
The guide bearing of the vertical shaft generator mainly comprises an upper guide, a lower guide and a thrust oil basin, the guide bearing of the generator and the guide bearing of the water turbine are called as guide bearings for short, a built-in cooler is generally adopted, the cooler is easy to dewfall due to the temperature difference between the inside and the outside, and particularly the water guide bearing has larger oil quality deterioration risk due to large humidity of the working environment. The guide bearing or the thrust bearing is easy to generate foreign matters with small granularity to pollute oil due to the friction between the black gold tile surface and the shaft collar, and if the pollution is serious, the bearing bush surface can be lost or even burnt, so the cleanliness of the oil for lubricating oil is particularly important for the bearing system.
The purification cycle of the lubricating oil of the hydroelectric generating set is generally arranged in the period of C maintenance and maintenance, the lubricating oil of the guide bearing is discharged into a dirty oil reservoir, then the lubricating oil is filtered and purified in the dirty oil reservoir, and the treatment cycle generally needs more than 25 days. The purification period can not be reasonably arranged according to the oil quality deterioration degree, and the oil quality in the running unit can not be monitored at any time. And if the unit cannot be stopped for standby at the load peak period, the unit cannot realize oil quality sampling and analysis.
Vertical hydroelectric set is because of adopting vertical arrangement, leads on, leads down and leads the oil pan with water and all is located rotating part top and inside, consequently leads bearing oil pan bottom and does not set up the sampling tube, and can't get oil on line and carry out the analysis in the unit operation process, only waits that the group can carry out the oil sample after stopping steadily completely. In actual operation, a sampling point for testing the oil quality of lubricating oil in a power plant is generally taken at a sewage pipeline at the bottom of an oil basin after a unit is static, oil is static due to lack of rotary power after the unit is stopped, and the oil sample taken at the sewage pipeline at the bottom cannot completely represent the oil quality of the oil basin, namely the oil quality of the oil basin of the hydroelectric generating set cannot be completely monitored.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention aims to provide an integrated system for online monitoring and purification operation of the lubricating oil of the hydro-power generating unit, so that the requirements of real-time analysis and purification of the oil of the hydro-power generating unit are met, and the safe and stable operation of the hydro-power generating unit is guaranteed.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the integrated system for online monitoring and purifying operation of the lubricating oil and the oil of the hydroelectric generating set comprises a sampling unit, an oil online monitoring device, an oil inlet and return switching device and a controller system;
the sampling unit is used for sampling the oil guide basin, and the oil online monitoring device is used for controlling the sampling unit in real time;
the oil inlet and return switching device is used for feeding and returning oil to three oil basins of an upper guide, a lower guide and a water guide in the water turbine generator set, and simultaneously shares one oil filter to realize the purpose of online oil filtering; the controller system is used for controlling the oil inlet and return switching device in real time.
The invention has the further improvement that the sampling unit comprises an oil inlet sampling tube, a sampling frame oil inlet branch sampling tube, a sampling frame oil return branch sampling tube and an oil return sampling tube; one end of the oil inlet sampling tube is a sampling tube oil inlet and is arranged in the hot oil basin, the other end of the oil inlet sampling tube is respectively connected to the oil monitoring system and one end of the sampling frame oil inlet branch sampling tube, and the other end of the sampling frame oil inlet branch sampling tube is connected to the sampling frame; one end of the oil return sampling tube is provided with an oil return port and is arranged in the cold oil basin, the other end of the oil return sampling tube is respectively connected to the oil monitoring system and one end of the sampling frame oil return branch sampling tube, and the other end of the sampling frame oil return branch sampling tube is connected to the sampling frame.
The invention has the further improvement that the oil inlet sampling tube is provided with an oil inlet stop valve and an oil inlet stop valve of the online monitoring device.
The invention is further improved in that a sampling frame oil inlet stop valve is arranged on the sampling frame oil inlet branch sampling pipe, an oil return stop valve and an online monitoring oil return stop valve are arranged on the oil return sampling pipe, and a sampling frame oil return stop valve is arranged on the sampling frame oil return branch sampling pipe.
The invention is further improved in that the oil on-line monitoring device comprises an oil monitoring device fault state fault alarm relay KC1 for outputting fault state alarm information of the oil monitoring device, an oil monitoring device power failure alarm relay KC2 for outputting power failure alarm information of the oil monitoring device, a granularity first-level alarm relay KC3 for outputting oil granularity first-level alarm information, a granularity second-level alarm relay KC4 for outputting oil granularity second-level alarm information and starting a commercial oil filter, a moisture first-level alarm relay KC5 for outputting oil moisture first-level alarm information, a moisture second-level alarm relay KC6 for outputting oil moisture second-level alarm information and starting the commercial oil filter, a dielectric constant first-level alarm relay KC7 for outputting moisture first-level alarm information, a dielectric constant second-level alarm relay KC8 for outputting oil dielectric constant second-level alarm information and starting the commercial oil filter, The device comprises a viscosity low primary alarm relay KC9, a viscosity low secondary alarm relay KC10, a density low primary alarm relay KC11, a density low secondary alarm relay KC12, a granularity sensor fault alarm relay KC13, a micro-water sensor fault alarm relay KC14, a dielectric constant sensor fault alarm relay KC15 and a density sensor fault alarm relay KC16, wherein the viscosity low primary alarm relay KC9 is used for outputting oil viscosity low secondary alarm information and starting a heater, the density low primary alarm relay KC11 is used for outputting density low secondary alarm information and starting a commercial oil filter, the granularity sensor fault alarm relay KC13 is used for outputting granularity relay fault alarm relay information, the micro-water sensor fault alarm relay KC14 is used for outputting micro-water sensor fault alarm information, and the dielectric constant sensor fault alarm relay KC15 is used for outputting dielectric constant relay fault alarm information and the density sensor fault alarm relay KC16 are used for outputting density sensor fault alarm information.
The invention is further improved in that the sampling unit monitors and collects oil liquid granularity, micro water, dielectric constant, viscosity and density oil liquid parameters in the guide bearing oil basin in real time on line, the oil liquid parameters exceeding the threshold value are compared with the controller threshold value of the oil liquid on-line inspection device, the oil liquid parameters exceed the threshold value and are output by the oil liquid on-line monitoring device controller DO to drive corresponding relays, and then the functions of start-stop control, primary alarm, secondary alarm and relay fault alarm of the oil filter are completed by auxiliary nodes of the relays.
The oil inlet and return switching device comprises a water outlet and oil outlet pipeline, a water inlet and oil outlet pipeline, a lower outlet oil pipeline, a lower inlet and oil inlet pipeline, an upper outlet oil pipeline, an upper inlet and oil inlet pipeline, an oil filter purifying oil inlet main pipe and an oil filter oil outlet main pipe;
the oil filter purification oil inlet main pipe and the oil filter oil outlet main pipe are respectively connected to an inlet and an outlet of an oil filter, the water outlet oil pipeline, the lower outlet oil pipeline and the upper outlet oil pipeline are respectively connected to the oil filter purification oil inlet main pipe, and the water inlet pipeline, the lower inlet pipeline and the upper inlet pipeline are respectively connected to the oil filter oil outlet main pipe.
The invention has the further improvement that a water-out oil anti-explosion electric ball valve and a water-out oil check valve are arranged on the water-out oil pipeline, and a water-in oil anti-explosion electric ball valve and a water-in oil check valve are arranged on the water-in oil pipeline; the lower oil outlet pipeline is provided with a lower oil outlet explosion-proof electric ball valve and a lower oil outlet check valve;
the upper oil outlet pipeline is provided with an upper oil outlet explosion-proof electric ball valve and an upper oil outlet check valve; the lower oil outlet pipeline is provided with a lower oil outlet explosion-proof electric ball valve and a lower oil outlet check valve; the water outlet oil pipeline is provided with a water outlet oil explosion-proof electric ball valve and a water outlet oil check valve, and the water inlet oil pipeline is provided with a water inlet oil explosion-proof electric ball valve and a water inlet oil check valve; one end of the oil inlet pipeline of the oil filter is connected with the upper lead-out oil pipeline, the lower lead-out oil pipeline and the water lead-out oil pipeline, and the other end of the oil inlet pipeline of the oil filter is directly connected with the inlet of the commercial oil filter; one end of the oil outlet pipeline of the oil filter is connected with the upper oil guide and inlet pipeline, the lower oil guide and inlet pipeline and the water guide and inlet pipe, and the other end of the oil outlet pipeline of the oil filter is directly connected with the oil outlet of the commercial oil filter.
The invention is further improved in that the controller system comprises a water-opening oil-guiding explosion-proof electric ball valve relay KC21 for opening a water-guiding oil-outlet explosion-proof electric ball valve, a water-opening oil-guiding explosion-proof electric ball valve relay KC22 for opening a water-guiding oil-inlet explosion-proof electric ball valve, an upper oil-guiding explosion-proof electric ball valve relay KC23 for opening an upper oil-guiding explosion-proof electric ball valve, a water-closing oil-guiding explosion-proof electric ball valve relay KC25 for closing a water-guiding oil-outlet explosion-proof electric ball valve, a water-closing oil-guiding explosion-proof electric ball valve relay KC26 for closing a water-guiding oil-inlet explosion-proof electric ball valve, an upper oil-guiding explosion-proof electric ball valve relay KC27 for closing an upper oil-guiding explosion-proof electric ball valve, an upper oil-guiding electric ball valve relay KC31 for opening an upper oil-guiding explosion-proof electric ball valve, a lower oil-guiding explosion-proof electric ball relay KC32 for opening a lower oil-guiding explosion-proof electric ball valve relay, The lower oil guide anti-explosion type electric ball valve relay KC33 is used for opening the lower oil guide anti-explosion electric ball valve, the oil filter starting relay KC34 is used for starting a commercial oil filter for purification, the upper oil guide anti-explosion type electric ball valve relay KC35 is used for closing the upper oil guide anti-explosion electric ball valve, the lower oil guide anti-explosion type electric ball valve relay KC36 is used for closing the lower oil guide anti-explosion type electric ball valve, the lower oil guide anti-explosion type electric ball valve relay KC37 is used for closing the lower oil guide anti-explosion type electric ball valve, and the oil filter stopping relay KC38 is used for stopping the commercial oil filter for oil filtration.
The invention has at least the following beneficial technical effects:
the oil quality of the guide bearing lubricating oil system of the hydroelectric generating set can be dynamically monitored and fed back to remote control personnel in real time; the method overcomes the difficult problem of poor representativeness of off-line sampling of the oil in the large oil basin, and the sampling result can better reflect the real level of the oil in the oil basin by adopting dynamic cyclic sampling; by acquiring and analyzing oil results in real time, uploading the results to a remote LCU system through a monitoring oil control system and controlling a local oil filter, if the results exceed the standard, the oil filter is started to realize automatic oil filtering, a large amount of manpower and material resources are saved, the steps of off-line testing, waiting for testing results, stopping for oil drainage, injecting new oil and off-line oil filtering are omitted, the period for purifying lubricating oil by a unit is shortened by more than 30 days, and the utilization time or the standby time of the unit is reliably prolonged. Meanwhile, the invention arranges a common oil filter for the same unit, which saves 2/3 and saves more than 2/3 investment.
Drawings
FIG. 1 is a drawing of a coupon layout.
Fig. 2 is a layout diagram of the oil inlet and return switching device.
Fig. 3 is a first schematic diagram of sampling control.
Fig. 4 is a second schematic diagram of sampling control.
Fig. 5 is a third schematic diagram of sampling control.
Fig. 6 is a first control schematic diagram of the oil inlet and return switching device.
Fig. 7 is a second control schematic diagram of the oil inlet and return switching device.
Description of reference numerals:
1-11 is a sampling pipe oil inlet, 1-12 is an oil inlet stop valve, 1-13 is an oil inlet sampling pipe, 1-14 is an oil inlet stop valve of an online monitoring device, 1-15 is an online monitoring oil return stop valve, 1-16 is a sampling frame oil inlet stop valve, 1-17 is a sampling frame oil return stop valve, 1-18 is a sampling frame oil inlet branch sampling pipe, 1-19 is a sampling frame oil return branch sampling pipe, 1-20 is an oil return sampling pipe, 1-21 is an oil return stop valve, and 1-22 is an oil return port;
2-1-1 is a water-out oil-out explosion-proof electric ball valve, 2-1-2 is a water-out oil-out check valve, 2-1-3 is a water-in oil-out explosion-proof electric ball valve, 2-1-4 is a water-in oil-in check valve, 2-1-5 is a water-out oil-out pipeline, and 2-1-6 is a water-in oil-in pipeline;
2-2-1 is a lower oil outlet explosion-proof electric ball valve, 2-2-2 is a lower oil outlet check valve, 2-2-3 is a lower oil inlet explosion-proof electric ball valve, 2-2-4 is a lower oil inlet check valve, 2-2-5 is a lower oil outlet pipeline, and 2-2-6 is a lower oil inlet pipeline;
2-3-1 is an upper oil-guiding explosion-proof electric ball valve, 2-3-2 is an upper oil-guiding check valve, 2-3-3 is an upper oil-guiding explosion-proof electric ball valve, 2-3-4 is an upper oil-guiding check valve, 2-3-5 is an upper oil-guiding pipeline, and 2-3-6 is an upper oil-guiding pipeline;
2-4-1 is a main pipe for purifying oil inlet of the oil filter, and 2-4-2 is a main pipe for oil outlet of the oil filter;
the KC1 is a fault state fault alarm relay of the oil monitoring device; the KC2 is a power failure alarm relay of the oil monitoring device; KC3 is a granularity first-level alarm relay; KC4 is a granularity secondary alarm relay; KC5 is a moisture first-level alarm relay; KC6 is a water secondary alarm relay; KC7 is a primary alarm relay with a boundary constant; KC8 is a secondary alarm relay with a boundary constant; KC9 is a first-level alarm relay with low viscosity; KC10 is a low-viscosity secondary alarm relay; KC11 is a first-level alarm relay with low density; KC12 is a low-density secondary alarm relay; KC13 is a particle size sensor fault alarm relay; KC14 is a micro water sensor fault alarm relay; KC15 is a dielectric constant sensor fault alarm relay; KC16 is a density sensor malfunction alarm relay.
KC21 is an explosion-proof electric ball valve relay for leading boiled water out; KC22 is a boiled water guide oil inlet explosion-proof type electric ball valve relay; KC23 is an explosion-proof electric ball valve relay with oil outlet at the upper part; KC24 backup relay; KC25 is an explosion-proof electric ball valve relay for water-closing and oil-leading; KC26 is a water-closing oil-guiding explosion-proof electric ball valve relay; KC27 is an explosion-proof electric ball valve relay for closing the oil outlet; KC28 backup relay; KC31 is an explosion-proof electric ball valve relay with an upper guide oil inlet; KC32 is an open-down oil-guide explosion-proof electric ball valve relay; KC33 is an explosion-proof electric ball valve relay for opening and leading out oil; KC34 is used for starting an oil filter relay; KC35 is an explosion-proof electric ball valve relay with a closed oil inlet; KC36 is an explosion-proof electric ball valve relay leading oil under closing; KC37 is an explosion-proof electric ball valve relay for leading oil out when closed; KC38 is an oil filter shutdown relay.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The first part of the oil monitoring system is shown in figure 1, and all related sampling tubes are adopted
Stainless steel pipe, all the sizes of the related stop valves are adopted
Water is led, is led and is led oil pan sample all with reference to figure 1 and set up sampling tube and fluid monitoring system down. The cutoff flow in fig. 1 is as follows: the flow direction of an oil medium is monitored on line: sampling pipe oil inlets 1-11 to oil inlet sampling pipes 1-13 to oil inlet stop gates 1-12 to oil inlet sampling pipes 1-13 to online monitoring device oil inlet stop valves 1-14 to online monitoring oil return stop valves 1-15 to oil return sampling pipes 1-20 to oil return stop valves 1-21 to oil return ports 1-22 to oil basins; media flow direction of the sampling off-line sampling device: sampling tube oil inlets 1-11 to oil inlet sampling tubes 1-13 to oil inlet stop gates 1-12 to oil inlet sampling tubes 1-13 to sampling frame oil inlet stop valves 1-16 to sampling frame oil inlet branch sampling tubes 1-18 to sampling frame oil return branch sampling tubes 1-19 to sampling frame oil return stop valves 1-17 to oil return sampling tubes 1-20 to oil return stop valves 1-21 to oil return ports 1-22 to oil basins. In the figure 1, the sampling tube oil inlets 1-11 are connected with oil inlet sampling tubes 1-13, oil inlet stop valves 1-12 are used for isolating the sampling tubes from oil basin sampling holes and are arranged on the oil inlet sampling tubes 1-13, oil flows through the oil inlet sampling tubes 1-13 and the oil inlet stop valves 1-14 of the online monitoring device and enters four-sensor oil monitoringIn the device, a sensor in an oil monitoring device is sequentially provided with a granularity test sensor, a micro-water test sensor, a dielectric constant test sensor and a viscosity and density test sensor along the oil flow direction, after oil flows out of the density sensor and passes through an oil return sampling tube 1-20 to an online monitoring oil return stop valve 1-15, the oil returns to a cold oil basin along the oil return sampling tube 1-20 to the oil return stop valve 1-21 and an oil return port 1-22, and the oil is monitored and analyzed constantly. The on-line monitoring device oil inlet stop valves 1-14 and the on-line monitoring oil return stop valves 1-15 play the purpose of on-line isolation of the on-line monitoring device, and the oil inlet stop valves 1-12 and the oil return stop valves 1-21 play the purpose of on-line isolation of an oil basin, a sampling pipe and connecting equipment thereof. In the figure 1, the flow direction of oil media from the sampling pipe to the sampling pipe frame is shown, oil flows from the oil inlet sampling pipe 1-13 to the sampling frame oil inlet branch sampling pipe 1-18 through the sampling pipe inlet stop valve 1-16, flows from the sampling frame bypass valve to the sampling frame oil return branch sampling pipe 1-19, flows from the sampling frame oil return stop valve 1-17 to the oil return sampling pipe 1-20, and returns to the bottom of an oil basin, so that the purpose of offline sampling is achieved, and the sampling frame oil inlet stop valve 1-16 and the sampling frame oil return stop valve 1-17 play roles in isolating an online sampling device and a connection part thereof.
In the oil monitoring system, a granularity first-level alarm and a second-level alarm, a micro-water first-level alarm and a micro-water second-level alarm, a dielectric constant first-level alarm and a dielectric constant second-level alarm, a viscosity first-level alarm and a density first-level alarm gate are adopted, the granularity classification standard adopts the number of particles of 101-250 mu m, and the number of the particles is more than or equal to 16, and the granularity exceeds the standard; the number of the particles is more than or equal to 32, the primary particle size exceeds the standard, and a secondary alarm is given; measuring the micro water content by PPM unit, wherein the micro water content is more than or equal to 1000PPM, the water content in the oil exceeds the standard by one-level alarm, and the micro water content is more than or equal to 3000PPM, the water content in the oil exceeds the standard by two-level alarm; the first alarm of dielectric constant exceeding in the oil with dielectric constant more than or equal to 2.2 and the second alarm of dielectric constant exceeding in the oil with dielectric constant more than or equal to 2.5. In the control principle shown in fig. 3 and 4, the granularity test sensor, the micro-water test sensor, the dielectric constant test sensor and the viscosity and density test sensor upload parameters to the on-line in-situ monitoring controller unit by acquiring oil data from time to time, the controller unit performs node development according to a set threshold value, and the schematic diagrams are shown in fig. 3 and 4. Fig. 3 mainly includes a controller failure alarm, a power failure alarm, a particle size alarm, a micro water alarm, and a dielectric constant alarm, and fig. 4 mainly includes a viscosity alarm, a density alarm, a particle sensor failure alarm, a micro water failure alarm, a dielectric constant sensor failure alarm, and a viscosity or density sensor failure alarm. A fault state fault alarm relay KC1 of the control oil monitoring device is opened by monitoring the abnormal working state of the singlechip of the body controller, and one pair of auxiliary contacts of the fault state fault alarm relay is applied to be sent to a unit monitoring system LCU for event highlighting; a fault state fault alarm relay KC1 of the oil monitoring device is controlled by monitoring abnormal operation of the direct-current power supply system of the monitoring control loop, and another pair of auxiliary contacts are applied and sent to a unit monitoring system LCU for event alarm; the oil granularity data is collected through a controller and is divided into a granularity first-level alarm and a granularity second-level alarm, a granularity first-level alarm relay KC3 and a granularity second-level alarm relay KC4 are respectively provided, the granularity first-level alarm relay KC3 uses one pair of auxiliary contacts to be provided to a unit LCU for granularity exceeding first-level event alarm for reminding operating personnel to pay attention to the change of oil quality of the oil, namely the granularity exceeds the standard, the granularity second-level alarm relay KC4 uses one pair of auxiliary contacts to be provided to the unit LCU for granularity exceeding second-level alarm for reminding the operating personnel to carry out oil purification operation, namely the micro water seriously exceeds the standard, uses the other pair of auxiliary contacts to be provided to an oil inlet and return switching device controller, and starts an oil filter for oil purification operation; the micro-water sensor and controller threshold values are divided into a micro-water first-level exceeding alarm output control water first-level alarm relay KC5 and a water second-level alarm relay KC6, the water first-level alarm relay KC5 uses a pair of auxiliary contacts to be output to a unit LCU micro-water first-level event alarm to remind operating personnel to pay attention to oil change, namely micro-water exceeding, the water second-level alarm relay KC6 uses a pair of auxiliary contacts to be output to the unit LCU to carry out micro-water exceeding second-level alarm to remind the operating personnel to carry out oil purification operation, namely micro-water serious exceeding, the water second-level alarm relay KC6 uses the other pair of auxiliary contacts to be output to an oil inlet and return switching device controller, and an oil filter is started to carry out oil purification operation; the device is divided into a first-level alarm relay KC7 with the dielectric constant exceeding the standard and a second-level alarm opening control boundary constant and a second-level alarm relay KC8 by a dielectric constant sensor and a controller and exceeding a threshold value of the controller, wherein the first-level alarm relay KC7 with the boundary constant uses one pair of auxiliary contacts opened to a first-level event alarm of the dielectric constant of a unit LCU for warning the operator to pay attention to the change of the oil quality of the oil, "the dielectric constant exceeding the standard", the second-level alarm relay KC8 with the boundary constant uses one pair of auxiliary contacts opened to the unit LCU for warning the second-level alarm of the dielectric constant exceeding the standard to warn the operator to carry out the oil purification operation, "the dielectric constant is seriously exceeding the standard", and the second-level alarm relay KC8 with the boundary constant uses the other pair of auxiliary contacts opened to a controller of an oil inlet and return switching device, and an oil filter is started for carrying out the oil purification operation; the device is divided into a first-level alarm for exceeding viscosity and a second-level alarm for controlling the low viscosity and a first-level alarm relay KC9 and a second-level alarm relay KC10 through a viscosity/density sensor and a controller and a threshold value exceeding the controller, and a first-level alarm for exceeding the density and a second-level alarm for controlling the low density and a first-level alarm relay KC11 and a second-level alarm relay KC12, wherein the first-level alarm relay KC9 uses one pair of auxiliary contacts to be opened to a unit LCU to alarm a first-level event for reminding operating personnel of paying attention to the change of oil quality of oil, namely the viscosity is over, automatically starts an oil basin heater to heat an oil basin, the second-level alarm relay KC10 uses one pair of auxiliary contacts to be opened to the unit LCU to alarm a second-level event for reminding the operating personnel of exceeding the viscosity to heat the oil, namely the viscosity is over-low and over-serious, and the first-level alarm relay KC11 uses one pair of auxiliary contacts to alarm contacts to be opened to the unit LCU to alarm for reminding the high density and I-level event for reminding the unit to alarm Operators pay attention to the change of oil quality of oil, namely 'high density and standard exceeding', a density low secondary alarm relay KC12 uses one pair of auxiliary contacts to be opened to a unit LCU to carry out density overhigh and standard exceeding II-level alarm to remind the operators to carry out oil purification operation, namely 'high density and serious standard exceeding'; the fault of the granularity sensor is judged by the controller, and then the granularity sensor is controlled to be opened by a granularity sensor fault alarm relay KC13, and one pair of auxiliary opening is applied to the granularity sensor fault alarm 'granularity sensor fault' of the unit LCU; the micro water sensor fault is judged by the controller and then is controlled to be opened by a micro water sensor fault alarm relay KC14, and one pair of auxiliary contacts is used for opening to a unit LCU micro water sensor fault alarm 'micro water sensor fault'; the fault of the dielectric constant sensor is judged by the controller and then is controlled by a dielectric constant sensor fault alarm relay KC15, and one pair of auxiliary contacts is used for alarming the fault of the dielectric constant sensor to the fault of the LCU micro water sensor of the unit; the failure of the viscosity sensor is judged by the controller and then is controlled by a density sensor failure alarm relay KC16, and one pair of auxiliary contacts is used for alarming the failure of the viscosity sensor to the failure of the LCU micro water sensor of the unit. All the sensors of the granularity, the micro-water content, the dielectric constant value, the viscosity value and the density value in the graph 5 are connected with all the wires of the controller, the 4-20 milliampere local sensor is connected with the controller for outputting and transmitting the value, and the value is transmitted to the upper computer through the communication from the controller to the unit LCU through RS485 for monitoring and displaying the value of the operating personnel.
In the figure 2, the pipelines involved in the oil inlet and return switching device all adopt
The stainless steel pipe, the electric valve and the check valve are all adopted
Stainless steel material. The switching device comprises 6 explosion-proof electric ball valves, namely a water-guiding oil-discharging explosion-proof electric ball valve 2-1-1, a water-guiding oil-discharging explosion-proof electric ball valve 2-1-3, a lower-guiding oil-discharging explosion-proof electric ball valve 2-2-1, a lower-guiding oil-discharging explosion-proof electric ball valve 2-2-3, an upper-guiding oil-discharging explosion-proof electric ball valve 2-3-3, 6 check valves, namely a water-guiding oil-discharging check valve 2-1-2, a water-guiding oil-discharging check valve 2-1-4, a lower-guiding oil-discharging check valve 2-2-2, a lower-guiding oil-discharging check valve 2-2-4, an upper-guiding oil-discharging check valve 2-3-2 and an upper-guiding oil-discharging check valve 2-3-4. The oil medium of the water-guiding oil purification device flows to the direction, and the oil basin leads oil out from the water-guiding oil outlet pipeline 2-1-5 to the waterThe check valve 2-1-2 is connected with an oil outlet explosion-proof electric ball valve 2-1-1 through water to an oil filter purification oil inlet main pipe 2-4-1, and is sent to a commercial oil filter for oil purification treatment, oil is treated and then is connected with a water inlet guide pipeline 2-1-6 through the oil filter oil outlet main pipe 2-4-2, and is connected with a water inlet explosion-proof electric ball valve 2-1-3, a water inlet check valve 2-1-4 and a water inlet guide pipeline 2-1-6 to a water cold guide oil basin; the lower guide is provided with a purified oil medium flow direction: hot oil in the lower oil guide basin passes through a lower oil guide pipeline 2-2-5 to a lower oil guide check valve 2-2-2, passes through a lower oil guide explosion-proof electric ball valve 2-2-1 to an oil filter purification oil inlet main pipe 2-4-1, is sent to a commercial oil filter for oil purification treatment, and passes through the oil filter oil outlet main pipe 2-4-2 to a lower oil guide inlet pipeline 2-2-6, passes through a lower oil guide explosion-proof electric ball valve 2-2-3, a lower oil guide check valve 2-2-4 and a lower oil guide inlet pipeline 2-2-6 to a lower cold guide oil basin after being treated; the upper guide has the flow direction of the purified oil medium: hot oil in the lower oil guide basin passes through the upper oil guide pipeline 2-3-5 to the upper oil guide check valve 2-3-2, passes through the upper oil guide explosion-proof electric ball valve 2-3-1 to the oil filter purification oil inlet main pipe 2-4-1, is sent to a commercial oil filter for oil purification treatment, is treated and then passes through the oil filter oil outlet main pipe 2-4-2 to the upper oil guide pipeline 2-3-6, passes through the upper oil guide explosion-proof electric ball valve 2-3-3, the upper oil guide check valve 2-3-4 and the upper oil guide pipeline 2-3-6 to the lower oil guide basin. The oil inlet and return switching device also comprises a signal input and output controller, and the input signals of the controller mainly comprise: the granularity is alarmed for the second level; alarm for micro-water second-level exceeding; a secondary alarm is given when the dielectric constant exceeds the standard; the low secondary warning of viscosity or the high secondary warning of density, output signal includes: opening and closing the water guide oil outlet explosion-proof electric ball valve 2-1-1 and the water guide oil inlet explosion-proof electric ball valve 2-1-3; opening and closing a lower oil outlet explosion-proof electric ball valve 2-2-1 and a lower oil inlet explosion-proof electric ball valve 2-2-3; opening and closing an upper oil guide and explosion-proof electric ball valve 2-3-1 and an upper oil guide and explosion-proof electric ball valve 2-3-3; the oil filter is started and stopped.
As shown in fig. 6 and 7, the schematic diagram and implementation process of the switching controller specifically include: the granularity/micro water/dielectric constant of the water-oil-guiding liquid on-line analysis device exceeds the standard to a second-level alarm, the upper guide is not provided with the second-level alarm, the lower guide is not provided with the second-level alarm, the oil filter is not operated and is delayed for 20min, the controller node is switched on, the boiled water-guiding oil-guiding explosion-proof electric ball valve relay KC21 and the boiled water-guiding oil-guiding explosion-proof electric ball valve relay KC22 are controlled, the boiled water-guiding oil-guiding explosion-proof electric ball valve relay KC21 uses one pair of auxiliary nodes to be opened to the unit LCU to monitor the equipment instruction opening of 'boiled water-guiding oil', the other pair of auxiliary nodes is used to be opened to the existing ground water-guiding oil-explosion-proof electric ball valve 2-1-1, the boiled water-guiding oil-guiding relay KC22 uses one pair of auxiliary nodes to be opened to the unit LCU to monitor the 'boiled water-guiding oil-returning', the other pair of auxiliary nodes is used to be opened to the existing ground water-guiding oil-guiding explosion-guiding oil-guiding electric ball valve 2-1-3, the controller controls a starting oil filter relay KC34 to output a starting oil filter instruction, one pair of auxiliary nodes are used for being opened to a unit LCU to enter equipment to be opened and monitored to start an oil filter, and the other pair of auxiliary nodes are used for being opened to an on-site oil filter; after the oil quality is qualified, namely the oil filter is delayed for 20min without water guide granularity/micro water/dielectric constant second-level alarm or ((upper guide second-level alarm or lower guide second-level alarm) & oil filter does not run), the controller controls the water-off water guide oil anti-explosion type electric ball valve relay KC25 and the water-off water guide oil anti-explosion type electric ball valve relay KC26 to be opened, the water-off water guide oil anti-explosion type electric ball valve relay KC25 uses one pair of auxiliary nodes to be opened to the unit LCU for equipment instruction to open and monitor 'water guide oil', uses the other pair of auxiliary nodes to close the ground water guide oil anti-explosion type electric ball valve 2-1-1, the water-off water guide oil anti-explosion type electric ball valve relay KC26 uses one pair of auxiliary nodes to be opened to the unit LCU for equipment instruction to open and monitor 'water guide oil', uses one pair of auxiliary nodes to close the ground water guide oil return type electric ball valve 2-1-3, the controller controls an oil filter stopping relay KC38 to output an oil filter stopping instruction, and the instruction is sent to a unit LCU through a pair of auxiliary nodes to monitor 'oil filter stopping'. The granularity/micro water/dielectric constant of the upper oil guiding liquid on-line analysis device exceeds the standard to the second-level alarm, the water guiding does not have the second-level alarm, the lower oil guiding does not have the second-level alarm, the oil filter does not operate and delays for 20min, the node is connected, the controller controls the upper oil guiding explosion-proof type electric ball valve relay KC23 and the upper oil guiding explosion-proof type electric ball valve relay KC31 to be switched on, the upper oil guiding explosion-proof type electric ball valve relay uses one pair of auxiliary nodes to be switched out to the unit LCU to monitor the equipment instruction, the upper oil guiding return oil is switched on, one pair of auxiliary nodes are used to switch out the oil explosion-proof type electric ball valve 2-3-1 on the ground, the upper oil guiding explosion-proof type electric ball valve relay KC31 uses one pair of auxiliary nodes to be switched out to the unit LCU to monitor the equipment instruction, the upper oil guiding is switched on the ground, the other pair of auxiliary nodes are switched out to switch out the oil explosion-proof type electric ball valve 2-3-3, the controller controls a starting oil filter relay KC34 to output a starting oil filter instruction, one pair of auxiliary nodes are used for being opened to a unit LCU to enter equipment to be opened and monitored to start an oil filter, and the other pair of auxiliary nodes are used for being opened to an on-site oil filter; after the oil quality is qualified, the oil filter is delayed for 20min without an upper guide granularity/micro water/dielectric constant secondary alarm or ((the water guide secondary alarm or leads the secondary alarm downwards) & the oil filter does not run), the controller controls the switch of an upper guide oil explosion-proof type electric ball valve relay KC27 and a switch of an upper guide oil explosion-proof type electric ball valve relay KC35 to be switched on, the switch of the upper guide oil explosion-proof type electric ball valve relay KC27 uses one pair of auxiliary nodes to be switched to the unit LCU for carrying out equipment instruction switch monitoring to monitor 'upper guide oil return', the other pair of auxiliary nodes is used for switching the oil explosion-proof type electric ball valve 2-3-1 on the ground, the switch of the upper guide oil explosion-proof type electric ball valve relay KC35 uses one pair of auxiliary nodes to be switched to the unit LCU for carrying out equipment instruction switch monitoring 'upper guide oil in closing', the other pair of auxiliary nodes is used for switching the oil explosion-proof electric ball valve 2-3-3 on the ground, the controller controls an oil filter stopping relay KC38 to output an oil filter stopping instruction, and the instruction is sent to a unit LCU through a pair of auxiliary nodes to monitor 'oil filter stopping'. The granularity/micro water/dielectric constant of the lower oil guiding liquid on-line analysis device exceeds the standard to the second-level alarm, the water guiding does not have the second-level alarm, the upper guiding does not have the second-level alarm, the oil filter does not operate and delays for 20min, the node is connected, the controller controls the lower oil guiding explosion-proof type electric ball valve relay KC32 and the lower oil guiding explosion-proof type electric ball valve relay KC33 to be opened, the lower oil guiding explosion-proof type electric ball valve relay KC32 uses one pair of auxiliary nodes to be opened to the unit LCU for monitoring the equipment instruction, the lower oil guiding relay KC 3526 uses the other pair of auxiliary nodes to be opened to the underground oil guiding explosion-proof type electric ball valve 2-2-3, the lower oil guiding explosion-proof type electric ball valve relay KC33 uses one pair of auxiliary nodes to be opened to the unit LCU for monitoring the equipment instruction, the lower oil guiding is opened, the other pair of auxiliary nodes is used to be opened to the underground oil guiding explosion-proof electric ball valve 2-2-1, the controller controls the starting oil filter relay KC34 to output a starting oil filter instruction, one pair of auxiliary nodes is used for being opened to the unit LCU to enter equipment opening monitoring 'starting oil filter', and the other pair of auxiliary nodes is used for being opened to the site oil filter. When the oil quality is qualified, the secondary alarm of lower guide granularity/micro water/dielectric constant [ ((water guide secondary alarm or upper guide secondary alarm) ] [ ((water guide secondary alarm) ] upper guide secondary alarm) ] & oil filter does not operate) ] & time delay is 20min, the controller controls the lower guide oil explosion-proof type electric ball valve relay KC36 and the lower guide oil-out explosion-proof type electric ball valve relay KC37 to be switched on, the lower guide oil-out explosion-proof type electric ball valve relay KC36 uses one pair of auxiliary nodes to be switched on to the unit LCU for carrying out equipment instruction on monitoring, the lower guide oil is switched off, the other pair of auxiliary nodes are used to be switched off to carry out underground guide oil explosion-proof type electric ball valves 2-2-3, the lower guide oil-out explosion-proof type electric ball valve relay KC37 uses one pair of auxiliary nodes to be switched on to the unit LCU for carrying out equipment instruction on monitoring, the upper guide oil is switched off, the other pair of auxiliary nodes is used for switching off to guide oil-out explosion-proof electric ball valves 2-2-1, the controller controls an oil filter stopping relay KC38 to output an oil filter stopping instruction, and the instruction is sent to a unit LCU through a pair of auxiliary nodes to monitor 'oil filter stopping'. The oil filter is started after 10min delay according to a secondary alarm of any one of granularity/micro water/dielectric constant of oil quality of upper oil guide, water guide and lower oil guide liquid, wherein the secondary alarm is & (the water guide oil inlet explosion-proof electric ball valve 2-1-3 and the water guide oil outlet explosion-proof electric ball valve 2-1-1 are fully opened), or (the lower guide oil inlet explosion-proof electric ball valve 2-2-3 and the lower guide oil outlet explosion-proof electric ball valve 2-2-1 are fully opened) or (the upper guide oil inlet explosion-proof electric ball valve 2-3-3 and the upper guide oil outlet explosion-proof electric ball valve 2-3-1 are fully opened). Fig. 6 and 7 also include a controller middle water oil-leading-out explosion-proof electric ball valve 2-1-1, a controller middle water oil-leading-out explosion-proof electric ball valve 2-1-3, a controller lower oil-leading-out explosion-proof electric ball valve 2-2-1, a controller lower oil-leading-out explosion-proof electric ball valve 2-2-3, a controller upper oil-leading-out explosion-proof electric ball valve 2-3-3, and a controller upper oil-leading-out explosion-proof electric ball valve 2-3-3 locking logic as follows: leading-out oil explosion-proof electric ball valve 2-2-1 to be fully closed under the condition that water leading-out oil explosion-proof electric ball valve 2-1-1 is opened, and leading-out oil explosion-proof electric ball valve 2-3-1 to be fully closed; leading the water into the explosion-proof electric ball valve 2-2-3 to be fully closed under the condition that the valve of the explosion-proof electric ball valve 2-1-3 is opened, and leading the water into the explosion-proof electric ball valve 2-3-3 to be fully closed; the lower oil outlet explosion-proof electric ball valve 2-2-1 is opened, the water outlet explosion-proof electric ball valve 2-1-1 is fully closed, and the upper oil outlet explosion-proof electric ball valve 2-3-1 is fully closed; the lower lead oil explosion-proof electric ball valve 2-2-3 is opened, and the upper lead oil explosion-proof electric ball valve 2-3-3 is closed; the upper outlet oil explosion-proof electric ball valve 2-3-1 is opened under the condition that water is led out of the oil explosion-proof electric ball valve 2-1-1 and the lower outlet oil explosion-proof electric ball valve 2-2-1 is closed; and the upper oil guide anti-explosion electric ball valve 2-3-3 is opened, and the lower oil guide anti-explosion electric ball valve 2-2-3 is closed.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The integrated system for online monitoring and purifying operation of the lubricating oil and the oil of the hydroelectric generating set is characterized by comprising a sampling unit, an oil online monitoring device, an oil inlet and return switching device and a controller system;
the sampling unit is used for sampling the oil guide basin, and the oil online monitoring device is used for controlling the sampling unit in real time;
the oil inlet and return switching device is used for feeding and returning oil to three oil basins of an upper guide, a lower guide and a water guide in the water turbine generator set, and simultaneously shares one oil filter to realize the purpose of online oil filtering; the controller system is used for controlling the oil inlet and return switching device in real time.
2. The integrated system for on-line monitoring, purifying and operating of lubricating oil and liquid of the hydroelectric generating set according to claim 1, wherein the sampling unit comprises oil inlet sampling pipes (1-13), sampling frame oil inlet branch sampling pipes (1-18), sampling frame oil return branch sampling pipes (1-19) and oil return sampling pipes (1-20); one end of the oil inlet sampling pipe (1-13) is a sampling pipe oil inlet (1-11) and is arranged in the hot oil basin, the other end of the oil inlet sampling pipe is respectively connected to the oil monitoring system and one end of the sampling frame oil inlet branch sampling pipe (1-18), and the other end of the sampling frame oil inlet branch sampling pipe (1-18) is connected to the sampling frame; one end of the return oil sampling pipe (1-20) is provided with an oil return port (1-22) and is arranged in the cold oil basin, the other end of the return oil sampling pipe is respectively connected to the oil monitoring system and one end of the sampling frame return oil branch sampling pipe (1-19), and the other end of the sampling frame return oil branch sampling pipe (1-19) is connected to the sampling frame.
3. The integrated system for on-line monitoring and purifying operation of the lubricating oil of the hydroelectric generating set according to claim 2, wherein the oil inlet sampling pipe (1-13) is provided with an oil inlet stop valve (1-12) and an oil inlet stop valve (1-14) of an on-line monitoring device.
4. The integrated system for on-line monitoring and purifying operation of the lubricating oil and the oil of the hydroelectric generating set according to claim 3 is characterized in that sampling frame oil inlet stop valves (1-16) are arranged on sampling frame oil inlet branch sampling pipes (1-18), oil return stop valves (1-21) and on-line monitoring oil return stop valves (1-15) are arranged on oil return sampling pipes (1-20), and sampling frame oil return stop valves (1-17) are arranged on sampling frame oil return branch sampling pipes (1-19).
5. The integrated system for on-line monitoring, purifying and operating of lubricating oil of hydroelectric generating set according to claim 4, wherein the on-line monitoring device for oil comprises a failure state failure alarm relay KC1 for outputting failure state alarm information of the monitoring device for oil, a power failure alarm relay KC2 for outputting power failure alarm information of the monitoring device for oil, a primary particle size alarm relay KC3 for outputting primary particle size alarm information of oil, a secondary particle size alarm relay KC4 for outputting secondary particle size alarm information of oil and starting a commercial oil filter, a primary moisture alarm relay KC5 for outputting primary moisture alarm information of oil, a secondary moisture alarm relay KC6 for outputting secondary moisture alarm information of oil and starting a commercial oil filter, a primary dielectric constant alarm relay KC7 for outputting primary moisture alarm information, A dielectric constant secondary alarm relay KC8 for outputting oil dielectric constant secondary alarm information and starting a commercial oil filter, a viscosity low primary alarm relay KC9 for outputting oil viscosity low primary alarm information, a viscosity low secondary alarm relay KC10 for outputting oil viscosity low secondary alarm information and starting a heater, a density low primary alarm relay KC11 for outputting density low primary alarm information, the density low secondary alarm relay KC12 is used for outputting oil density low secondary alarm and starting a commercial oil filter, the granularity sensor fault alarm relay KC13 is used for outputting granularity relay fault alarm relay information, the micro water sensor fault alarm relay KC14 is used for outputting micro water sensor fault alarm information, the dielectric constant sensor fault alarm relay KC15 is used for outputting dielectric constant relay fault alarm information, and the density sensor fault alarm relay KC16 is used for outputting density sensor fault alarm information.
6. The integrated system for on-line monitoring and purifying operation of lubricating oil and fluid of a hydroelectric generating set according to claim 5, wherein the sampling unit monitors and collects oil and fluid granularity, micro water, dielectric constant, viscosity and density oil and fluid parameters in a guide bearing oil basin in real time on line, the oil and fluid parameters exceeding the threshold value are compared with a controller threshold value of the on-line oil inspection device, the corresponding relay is driven by the output of the controller DO of the on-line oil monitoring device, and then the functions of start-stop control, primary alarm, secondary alarm and relay fault alarm of an oil filter are completed by auxiliary nodes of the relays.
7. The integrated system for on-line monitoring and purifying operation of lubricating oil and liquid of the hydroelectric generating set according to claim 1, wherein the oil inlet and return switching device comprises a water outlet and oil outlet pipeline (2-1-5), a water inlet and oil inlet pipeline (2-1-6), a lower outlet and oil pipeline (2-2-5), a lower inlet and oil inlet pipeline (2-2-6), an upper outlet and oil pipeline (2-3-5), an upper inlet and oil pipeline (2-3-6), an oil filter purifying oil inlet main pipe (2-4-1) and an oil filter outlet main pipe (2-4-2);
the oil filter purification oil inlet main pipe (2-4-1) and the oil filter oil outlet main pipe (2-4-2) are respectively connected to an inlet and an outlet of an oil filter, the water outlet oil pipeline (2-1-5), the lower outlet oil pipeline (2-2-5) and the upper outlet oil pipeline (2-3-5) are respectively connected to the oil filter purification oil inlet main pipe (2-4-1), and the water inlet oil pipeline (2-1-6), the lower inlet oil pipeline (2-2-6) and the upper inlet oil pipeline (2-3-6) are respectively connected to the oil filter oil outlet main pipe (2-4-2).
8. The integrated system for on-line monitoring and purifying operation of the lubricating oil and the liquid of the hydroelectric generating set according to claim 7 is characterized in that a water-out and oil-out explosion-proof electric ball valve (2-1-1) and a water-out and oil-out check valve (2-1-2) are arranged on the water-out and oil-out pipeline (2-1-5), and a water-in and oil-out explosion-proof electric ball valve (2-1-3) and a water-in and oil-out check valve (2-1-4) are arranged on the water-in and oil-out pipeline (2-1-6); a lower oil outlet anti-explosion electric ball valve (2-2-1) and a lower oil outlet check valve (2-2-2) are arranged on the lower oil outlet pipeline (2-2-5), and a lower oil inlet anti-explosion electric ball valve (2-2-3) and a lower oil inlet check valve (2-2-4) are arranged on the lower oil inlet pipeline (2-2-6);
the upper oil outlet pipeline (2-3-5) is provided with an upper oil outlet explosion-proof electric ball valve (2-3-1) and an upper oil outlet check valve (2-3-2), and the upper oil inlet pipeline (2-3-6) is provided with an upper oil inlet explosion-proof electric ball valve (2-3-3) and an upper oil inlet check valve (2-3-4); a lower oil outlet anti-explosion electric ball valve (2-2-1) and a lower oil outlet check valve (2-2-2) are arranged on the lower oil outlet pipeline (2-1-5), and a lower oil inlet anti-explosion electric ball valve (2-2-3) and a lower oil inlet check valve (2-2-4) are arranged on the lower oil inlet pipeline (2-2-6); the water-out oil-out pipeline (2-1-5) is provided with a water-out oil explosion-proof electric ball valve (2-1-1) and a water-out oil-out check valve (2-1-2), and the water-in oil-out pipeline (2-1-6) is provided with a water-in oil explosion-proof electric ball valve (2-1-3) and a water-in oil check valve (2-1-4); one end of the oil inlet pipeline (2-4-1) of the oil filter is connected with an upper oil outlet pipeline (2-3-5), a lower oil outlet pipeline (2-2-5) and a water oil outlet pipeline (2-1-5), and the other end of the oil inlet pipeline (2-4-1) of the oil filter is directly connected with an inlet of a commercial oil filter; one end of the oil outlet pipeline (2-4-2) of the oil filter is connected with the upper oil guide and inlet pipeline (2-3-6), the lower oil guide and inlet pipeline (2-2-6) and the water guide and inlet pipeline (2-1-6), and the other end of the oil outlet pipeline (2-4-2) of the oil filter is directly connected with the oil outlet of the commercial oil filter.
9. The integrated system for on-line monitoring and purifying operation of lubricating oil of hydroelectric generating set according to claim 8, wherein the controller system comprises a water-opening oil-guiding explosion-proof electric ball valve relay KC21 for opening the water-guiding oil-discharging explosion-proof electric ball valve (2-1-1), a water-opening oil-guiding explosion-proof electric ball valve relay KC22 for opening the water-guiding oil-guiding explosion-proof electric ball valve (2-1-3), an oil-guiding explosion-proof electric ball valve relay KC23 for opening the oil-guiding explosion-proof electric ball valve (2-3-1), a water-closing oil-guiding explosion-proof electric ball valve relay KC25 for closing the water-guiding oil explosion-proof electric ball valve (2-1-1), a water-closing oil-guiding explosion-proof electric ball valve relay KC26 for closing the water-guiding explosion-proof electric ball valve (2-1-3), An upper oil guide and explosion-proof electric ball valve relay KC27 is used for closing an upper oil guide and explosion-proof electric ball valve (2-3-1), an upper oil guide and explosion-proof electric ball valve relay KC31 is used for opening an upper oil guide and explosion-proof electric ball valve (2-3-3), a lower oil guide and explosion-proof electric ball valve relay KC32 is used for opening a lower oil guide and explosion-proof electric ball valve (2-2-3), a lower oil guide and explosion-proof electric ball valve relay KC33 is used for opening a lower oil guide and explosion-proof electric ball valve (2-2-1), an oil filter relay KC34 is started for starting a commercial oil filter to purify, an upper oil guide and explosion-proof electric ball valve relay KC35 is used for closing the upper oil guide and explosion-proof electric ball valve relay (2-3-3), and a lower oil guide and explosion-proof electric ball valve relay KC36 is used for closing the lower oil guide and explosion-proof electric ball valve (2-2-3), And the outlet oil closing explosion-proof electric ball valve relay KC37 is used for closing the outlet oil explosion-proof electric ball valve (2-2-1), and the oil filter stopping relay KC38 is used for stopping the commercial oil filter from stopping filtering oil.
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| CN202111343041.7A CN114113549A (en) | 2021-11-12 | 2021-11-12 | Online monitoring and purifying operation integrated system for lubricating oil and liquid of hydroelectric generating set |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596983A (en) * | 2022-10-18 | 2023-01-13 | 东方电气集团东方电机有限公司（Cn） | Method for online evaluation and optimization of quality of lubricating oil of bearing of hydro-generator |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596983A (en) * | 2022-10-18 | 2023-01-13 | 东方电气集团东方电机有限公司（Cn） | Method for online evaluation and optimization of quality of lubricating oil of bearing of hydro-generator |
| WO2024082808A1 (en) * | 2022-10-18 | 2024-04-25 | 东方电气集团东方电机有限公司 | Online quality evaluation and optimization method for lubricating oil for bearing of hydro-generator |
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