CN106930955A - Environmental protection and energy saving sewage pump drainage pumping system - Google Patents
Environmental protection and energy saving sewage pump drainage pumping system Download PDFInfo
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- CN106930955A CN106930955A CN201710309827.4A CN201710309827A CN106930955A CN 106930955 A CN106930955 A CN 106930955A CN 201710309827 A CN201710309827 A CN 201710309827A CN 106930955 A CN106930955 A CN 106930955A
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- 239000010865 sewage Substances 0.000 title claims abstract description 29
- 238000005086 pumping Methods 0.000 title claims abstract description 12
- 230000007613 environmental effect Effects 0.000 title claims abstract 3
- 238000010008 shearing Methods 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 12
- 150000002430 hydrocarbons Chemical class 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 10
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 10
- 229910001887 tin oxide Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000011414 polymer cement Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract 3
- 238000003745 diagnosis Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Housings And Mounting Of Transformers (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Environmental protection and energy saving sewage pump drainage pumping system, it is characterized in that, including motor, sewage pump, multiple shear knives, driving belt, oral siphon, outlet pipe, fluid shear chamber, oily transformer and oily transformer state judgment means, the sewage pump is driven by motor, fluid shear chamber is communicated on oral siphon, and the main shaft of motor drives shear axis to rotate by driving belt, and multiple shear knives are fixed on shear axis, shear knife and shear axis are located in fluid shear chamber, and the shear knife of rotation is sheared to the fibre object of oral siphon；The oily transformer state judgment means include initialization module, accounting computing module, intermediate parameters module, Leveling Block, condition judgment module and feedback module.
Description
Technical Field
The invention relates to the field of sewage pumps, in particular to an environment-friendly and energy-saving sewage pumping and draining pump system.
Background
The sewage pump is a main power tool for pumping and discharging sewage, and because the sewage contains more impurities, the wear speed of the sewage pump is much higher than that of a common pump, and the impurities in the sewage pump occupy a large amount and are harmful to the sewage pump, so that large fibrous substances are required to be sheared. In addition, the operation state of the transformer for transmitting power to the sewage pump is also an important factor influencing the reliable operation of the sewage pump system, and the reliable judgment of the operation state is essential.
Disclosure of Invention
Aiming at the problems, the invention provides an environment-friendly and energy-saving sewage pumping and draining pump system.
The purpose of the invention is realized by adopting the following technical scheme:
the sewage pump is driven by the motor, the shearing chamber is communicated with the water inlet pipe, a main shaft of the motor drives the shearing shaft to rotate through the transmission belt, the shearing knives are fixedly connected to the shearing shaft, the shearing knives and the shearing shaft are positioned in the shearing chamber, and the rotating shearing knives shear fiber substances of the water inlet pipe; the oil transformer state judgment device comprises an initialization module, a proportion calculation module, an intermediate parameter module, a smoothing module, a state judgment module and a feedback module.
The invention has the beneficial effects that: the sewage pump system is provided with the shearing chamber and the shearing knife to shear the thicker fiber at the inlet so as to reduce the abrasion degree of the sewage pump, and the system has high integration; in addition, the unique oil transformer fault diagnosis device can accurately judge the state of the oil transformer, and the reliability is high.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the oil transformer state determination device.
Detailed Description
The invention is further described with reference to the following examples.
Please refer to fig. 1-2, which illustrates an environment-friendly and energy-saving sewage pumping and draining pump system, comprising a motor 1, a sewage pump 2, a plurality of shearing knives 3, a transmission belt 4, a water inlet pipe 5, a water outlet pipe 6, a shearing chamber 7, an oil transformer 8 and an oil transformer state determining device 100, wherein the sewage pump 2 is driven by the motor 1, the shearing chamber 7 is communicated with the water inlet pipe 5, a main shaft 9 of the motor 1 drives a shearing shaft 11 to rotate through the transmission belt 4, the plurality of shearing knives 3 are fixedly connected to the shearing shaft 11, the shearing knives 3 and the shearing shaft 11 are located in the shearing chamber 7, and the rotating shearing knives 3 shear fibers of the water inlet pipe 5. The oil transformer state judgment device comprises an initialization module, a proportion calculation module, an intermediate parameter module, a smoothing module, a state judgment module and a feedback module.
(1) The initialization module specifically executes: acquiring index parameters in the transformer oil: c2H2Content x1、H2Content x2Total hydrocarbon relative gas production rate x3Absolute gas production rate x of total hydrocarbons4And CO Absolute gas production Rate x5Wherein x is3Calculated from the following formula:D1concentration of total hydrocarbons, D, measured for the first sampling2The concentration of the total hydrocarbons measured by the second sampling, delta t is a sampling time interval, SK is a hydrocarbon rate correction coefficient, and KT is a CO rate correction coefficient; x is the number of4Or x5Calculated from the following formula:C1concentration of total hydrocarbons or CO, C, measured for the first sampling2For the second sample of the measured concentration of total hydrocarbons or CO, Δ t is the sampling time interval, G is the total oil volume of the plant, and ρ is the density of the oil.
As a further preferred scheme, the perforated positions of the shearing shaft and the shearing chamber are sealed by rubber sealing rings, the shearing knives are made of stainless steel corrosion-resistant steel, and the number of the shearing knives is three to six.
(2) The proportion calculation module specifically executes: calculating x according toiRelative degree of deterioration L ofi，i＝1,2,…,5:
Wherein IG is index parameter xiThe WE is a set threshold of the index parameter, and a is an influence coefficient of the manually set index parameter change on the equipment state;
calculating x according toiIs weighted value wi：
Wherein Fu is a variable weight coefficient set artificially,the human is the normal weight of the set index parameter.
As a further preferable scheme, the raw material content ratio of the shearing knife is as follows: 0.05 to 0.13 percent of C, 0.1 to 2 percent of Si, 0.22 to 3.5 percent of Mn, 0.03 percent of P, 0.1 to 0.15 percent of Al, 0.12 to 0.54 percent of Cr0.05 to 0.7 percent of Cu0, 0.3 percent of composite rare earth and the balance of iron.
(3) The intermediate parameter module specifically executes: dividing the state of the transformer into a normal state, an attention state, an abnormal state and a serious state, and artificially setting three relative degradation degree thresholds s1、s2And s3Determining L according to the following formulaiDegree of association with four states
Wherein,
as a further preferable scheme, the surface of the shearing knife is coated with a tin oxide layer, and the tin oxide layer is obtained by the following steps: mixing SnCl4 hydrate with water according to the mass ratio of 8:3 to prepare a tin oxide aqueous solution, stirring, dropwise adding concentrated ammonia water to obtain a tin oxide glue solution, coating the tin oxide glue solution on a shearing knife, and drying at 85 ℃ for 10 hours.
(4) The smoothing module specifically executes: notation vector W ═ W1,w2,w3,w4,w5}, vector of And solving a final real-time judgment sine integration value K according to the following formula:
wherein,is a 5-row and 5-column determinantA value of (a), which represents the overall degree of correlation of the set of index parameters, a running equationRepresenting the degree of association of the set of index parametersMultiplying the correction amount; the state judgment module specifically executes: artificially setting three sine integral value threshold values K1、K2And K3Interval of order (0, K)1]、(K1，K2]、(K2，K3]、(K3，1]And judging the interval where K is located according to the normal state, the attention state, the abnormal state and the serious state of the transformer respectively, and sending out corresponding transformer state signals.
As a further preferable scheme, a bonding layer, a plurality of polymer cement paste anti-corrosion layers and a copolymerized acrylic acid protective surface layer are sequentially laid on the inner surface of the shearing chamber, and the polymer cement paste anti-corrosion layers are provided with 1-3 layers according to the thick bottom of the pipe wall.
(5) A state judgment module E: artificially setting three sine integral value threshold values K1、K2And K3Interval of order (0, K)1]、(K1，K2]、(K2，K3]、(K3，1]Judging the interval where K is located corresponding to the normal state, the attention state, the abnormal state and the serious state of the transformer respectively, and sending out corresponding transformer state signals;
(6) a feedback module F: intercepting the latest real-time judgment sine integration value K data with the time length of T, wherein T is more than or equal to 3 delta T, and if the K value K of any time T existstSo thatOrIt indicates that there is a mutation abnormality point K caused by a measurement or calculation abnormalitytWherein Z is1、Z2Respectively positive and negative mutation thresholds, Kt-ΔtAnd Kt+ΔtK values at times t- Δ t and t + Δ t, respectively, and the weighting factor β in the duty ratio calculation module is updated toβ' is an updateAnd (4) carrying out sine correction on the variable weight coefficient in advance, wherein n is the number of the abrupt change constant points in the time length T.
The oil transformer state judgment device comprehensively selects parameter indexes in transformer oil, reasonably distinguishes different influences brought by different non-electrical quantity parameters through calculation of relative deterioration degree and degree of association, accurately obtains a final real-time judgment sine integration value, overcomes the problem that the final parameters of the oil transformer non-electrical quantity judgment are not smooth in the past through application of double-sine smooth fitting, meanwhile, through judgment of abrupt variation constant points, when the abrupt variation constant points occur, reversely corrects variable weight coefficients in advance, overcomes misjudgment caused by measurement or calculation abnormity to a great extent, further ensures accuracy of transformer fault diagnosis, and multiple experimental results show that diagnosis accuracy of the oil transformer state judgment device is improved by at least 5 percent compared with that of the past diagnosis device.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The environment-friendly and energy-saving sewage pumping and draining pump system is characterized by comprising a motor, a sewage pump, a plurality of shearing knives, a transmission belt, a water inlet pipe, a water outlet pipe, a shearing chamber, an oil transformer and an oil transformer state judgment device, wherein the sewage pump is driven by the motor; the oil transformer state judgment device comprises an initialization module, a proportion calculation module, an intermediate parameter module, a smoothing module, a state judgment module and a feedback module.
2. The environment-friendly energy-saving sewage pumping and draining pump system according to claim 1, wherein the shearing shaft and the shearing chamber are sealed by a rubber sealing ring at the perforated position, the shearing knife is made of stainless steel corrosion-resistant steel, and the number of the shearing knife is three to six; the initialization module specifically executes: acquiring index parameters in the transformer oil: c2H2Content x1、H2Content x2Total hydrocarbon relative gas production rate x3Absolute gas production rate x of total hydrocarbons4And CO Absolute gas production Rate x5Wherein x is3Calculated from the following formula: D1concentration of total hydrocarbons, D, measured for the first sampling2The concentration of the total hydrocarbons measured by the second sampling, delta t is a sampling time interval, SK is a hydrocarbon rate correction coefficient, and KT is a CO rate correction coefficient; x is the number of4Or x5Calculated from the following formula:C1concentration of total hydrocarbons or CO, C, measured for the first sampling2For the second sample of the measured concentration of total hydrocarbons or CO, Δ t is the sampling time interval, G is the total oil volume of the plant, and ρ is the density of the oil.
3. The environment-friendly energy-saving sewage pumping and draining pump system as claimed in claim 2, wherein the raw material content ratio of the shearing knife is as follows: 0.05 to 0.13 percent of C, 0.1 to 2 percent of Si, 0.22 to 3.5 percent of Mn, 0.03 percent of P, 0.1 to 0.15 percent of Al, 0.12 to 0.54 percent of Cr, 0.05 to 0.7 percent of Cu, 0.3 percent of composite rare earth and the balance of Fe; the above-mentionedThe proportion calculation module specifically executes: calculating x according toiRelative degree of deterioration L ofi，i＝1,2,…,5:
Wherein IG is index parameter xiThe WE is a set threshold of the index parameter, and a is an influence coefficient of the manually set index parameter change on the equipment state;
calculating x according toiIs weighted value wi：
Wherein Fu is a variable weight coefficient set artificially,the human is the normal weight of the set index parameter.
4. The environmental friendly energy saving sewage pumping and draining pump system as claimed in claim 3, wherein the surface of said shearing blade is coated with a tin oxide layer, and said oxygen isThe tin oxide layer is obtained in the following way: mixing SnCl4 hydrate and water according to the mass ratio of 8:3 to prepare a tin oxide aqueous solution, stirring, dropwise adding concentrated ammonia water to obtain a tin oxide glue solution, coating the tin oxide glue solution on a shearing knife, and drying at 85 ℃ for 10 hours; the intermediate parameter module specifically executes: dividing the state of the transformer into a normal state, an attention state, an abnormal state and a serious state, and artificially setting three relative degradation degree thresholds s1、s2And s3Determining L according to the following formulaiDegree of association with four states
Wherein,
5. the environment-friendly energy-saving sewage pumping and draining pump system as claimed in claim 4, wherein the inner surface of the shearing chamber is sequentially laid with a bonding layer, a multi-layer polymer cement paste anticorrosive layer and a copolymerized acrylic acid protective surface layer, and the polymer cement paste anticorrosive layer is provided with 1-3 layers according to the thick bottom of the pipe wall; the smoothing module specifically executes: notation vector W ═ W1,w2,w3,w4,w5}, vector ofAnd solving a final real-time judgment sine integration value K according to the following formula:
wherein,is a 5-row and 5-column determinantA value of (a), which represents the overall degree of correlation of the set of index parameters, a running equationRepresenting the degree of correlation of the index parameters of the group by the correction quantity; the state judgment module specifically executes: artificially setting three sine integral value threshold values K1、K2And K3Interval of order (0, K)1]、(K1，K2]、(K2，K3]、(K3，1]And judging the interval where K is located according to the normal state, the attention state, the abnormal state and the serious state of the transformer respectively, and sending out corresponding transformer state signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710309827.4A CN106930955B (en) | 2017-05-04 | 2017-05-04 | Environmental protection and energy saving sewage pump drainage pumping system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710309827.4A CN106930955B (en) | 2017-05-04 | 2017-05-04 | Environmental protection and energy saving sewage pump drainage pumping system |
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| CN106930955B CN106930955B (en) | 2019-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110799224A (en) * | 2017-07-13 | 2020-02-14 | 心脏器械股份有限公司 | HVAD circadian rhythm tracker (PHI +) |
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| CN104101795A (en) * | 2014-02-19 | 2014-10-15 | 江苏倍尔科技发展有限公司 | Transformer fault control method |
| CN105445584A (en) * | 2015-11-27 | 2016-03-30 | 云南电网有限责任公司电力科学研究院 | Transformer safety state assessment method based on oil chromatography |
| CN105868912A (en) * | 2016-04-06 | 2016-08-17 | 清华大学 | Power transformer state evaluate method and apparatus based on data fusion |
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| CN110799224A (en) * | 2017-07-13 | 2020-02-14 | 心脏器械股份有限公司 | HVAD circadian rhythm tracker (PHI +) |
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