CN113404560A - Thermal power plant unit maintenance chemical inspection method and handheld auxiliary system - Google Patents
Thermal power plant unit maintenance chemical inspection method and handheld auxiliary system Download PDFInfo
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- CN113404560A CN113404560A CN202110558192.8A CN202110558192A CN113404560A CN 113404560 A CN113404560 A CN 113404560A CN 202110558192 A CN202110558192 A CN 202110558192A CN 113404560 A CN113404560 A CN 113404560A
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- 238000007689 inspection Methods 0.000 title claims abstract description 269
- 239000000126 substance Substances 0.000 title claims abstract description 54
- 238000012423 maintenance Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 238000010248 power generation Methods 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims description 83
- 230000007797 corrosion Effects 0.000 claims description 82
- 238000000151 deposition Methods 0.000 claims description 80
- 230000008021 deposition Effects 0.000 claims description 77
- 239000003921 oil Substances 0.000 claims description 61
- 238000001514 detection method Methods 0.000 claims description 33
- 238000012545 processing Methods 0.000 claims description 25
- 150000003839 salts Chemical class 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 239000010802 sludge Substances 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 230000003628 erosive effect Effects 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005536 corrosion prevention Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000010736 steam turbine oil Substances 0.000 claims description 3
- 239000010723 turbine oil Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/003—Arrangements for measuring or testing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a thermal power plant unit overhaul chemical inspection method and a handheld auxiliary system, and belongs to the technical field of thermal power plant unit software. The chemical inspection method comprises the steps of collecting unit parameters, operating water vapor quality, load, pollution discharge rate and water supply rate data, prejudging problems of the power generation equipment according to the data, inspecting and summarizing the power generation equipment according to the prejudgment, judging the health state of the unit based on the inspection result, and improving the maintenance and operation modes of the unit; the handheld auxiliary system comprises a unit maintenance information module, a steam pocket inspection module, an economizer inspection module, a water wall inspection module, a superheater inspection module, a reheater inspection module, a waste heat boiler inspection module, a steam turbine inspection module, a condenser inspection module, an oil system inspection module and an output module. The invention enables the chemical inspection work of the overhaul of the unit to be more efficient and accurately prejudged to find the problems of the power generation equipment, and practically plays a role in improving the maintenance and operation level of the unit.
Description
Technical Field
The invention relates to a method and a system, in particular to a thermal power plant unit maintenance chemical inspection method and a handheld auxiliary system, and belongs to the technical field of thermal power plant unit software.
Background
The chemical inspection of the power generation equipment in combination with the maintenance work of the thermal power plant unit is an important means for mastering the corrosion, scaling or salt accumulation conditions of the power generation equipment, inspecting and evaluating the control quality and supervision level of water, steam, oil and the like during the running period of the unit and evaluating the anti-corrosion effect during the stop (standby) period of the unit.
At present, the unit overhaul chemical inspection work of the thermal power plant basically depends on the technical staff to hold a camera, record books and the like for field inspection, the technical staff returns to an office for downloading after taking photos, and then the technical staff arranges and records the inspection results according to the photos corresponding to the field inspection contents. The chemical inspection equipment is multiple, the items are multiple, the content is multiple, the details are multiple, the requirement on the professional technical capability of an inspector is high, the inspection time is urgent due to the coincidence with the field maintenance work, the problem of inspection item omission is inevitable in the actual inspection process, and after the inspection item omission is determined, the original state of the power generation equipment is damaged, and finally the inspection item deletion is caused. Meanwhile, the photos are disjointed from the records, so that the work load is large, the work efficiency is low, information confusion is easy to occur during later-period arrangement, and the effect of summarizing and improving is difficult to achieve.
A chinese patent publication No. CN206284533U, publication No. 30/06/2017, discloses a utility model named as "machine maintenance chemical supervision and inspection kit". The inspection bag comprises a shell front face, a shell back face, a shell soft ridge and an encapsulation zipper, wherein one edge of the shell front face and one edge of the shell back face are respectively connected with the shell soft ridge, the encapsulation zipper is arranged on the shell front face and the other three edges of the shell back face at least comprise a piece of tool page, the tool page is arranged on the shell front face and in a space formed by the shell back face, and one edge of the tool page is connected with the shell soft ridge. The chemical supervision and inspection bag is simple in structure, flexible to carry, capable of achieving various inspection tools for fixed management, multifunctional and practical. However, the patent only discloses a machine set maintenance chemical supervision inspection packet, does not relate to a method for improving the machine set maintenance chemical inspection effect, and does not provide a handheld auxiliary system for improving the inspection efficiency.
Therefore, the thermal power plant unit overhaul chemical inspection method and the handheld auxiliary system can clearly examine key points, meanwhile assist technicians to examine according to all module items, effectively prevent omission, integrate photo shooting and examination content recording into a whole, integrally output after examination is finished, facilitate inspectors to publish formal reports, greatly improve examination work efficiency and are particularly necessary.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a thermal power plant unit overhaul chemical inspection method and a handheld auxiliary system, which have the advantages of simple and reasonable system design, safety, reliability, convenient operation, more efficient and accurate pre-judgment for discovering the problems of power generation equipment during unit overhaul chemical inspection, and practically improve the unit maintenance and operation level.
The technical scheme adopted by the invention for solving the problems is as follows: this handheld auxiliary system of thermal power plant unit maintenance chemical examination, its characterized in that: the handheld auxiliary system comprises a unit maintenance information module, a steam pocket inspection module, an economizer inspection module, a water wall inspection module, a superheater inspection module, a reheater inspection module, a waste heat boiler inspection module, a steam turbine inspection module, a condenser inspection module, an oil system inspection module and an output module.
Preferably, the unit maintenance information module comprises maintenance time, operation hours and statistics of conditions since last maintenance; the maintenance time comprises the maintenance starting time, the maintenance finishing date and the previous maintenance finishing date; the number of operating hours comprises the time since the last overhaul and the time since the unit is put into operation; the statistics of the conditions since the last overhaul comprise the evaporation capacity of the boiler, the load of a unit, the water replenishing rate of the boiler, the pollution discharge rate of the boiler, the number of standby hours, the number of starting and stopping times, the checking of the standby protection method and effect of the boiler, the operation parameters of the scaling of the reaction thermal equipment, the abnormity or fault related to chemical supervision and other conditions since the last overhaul.
Preferably, the steam pocket inspection module comprises the color of the inner wall of the steam pocket, the condition of a steam-water boundary, the presence or absence of accumulated water at the bottom, the presence or absence of sediments at the bottom, the condition of corrosion and scaling at a water side, the condition of corrosion and scaling and salt accumulation at a steam side, the condition of a cyclone cylinder and a corrugated plate, the presence or absence of falling of a porous plate, the condition of a dosing pipe, the condition of a drain pipe, the condition of a water supply pipeline, the condition of a water supply and washing steam device and the inspection before a steam pocket sealing door; this steam pocket inner wall colour, soda boundary condition, there is not ponding bottom, there is not deposit bottom, water side corrosion scale deposit condition, steam side corrosion scale deposit salt condition, whirlwind section of thick bamboo and wave plate condition, perforated plate have or not drop, add the pencil condition, blow off pipe condition, the water supply pipe condition, for washing steam device condition and steam pocket seal door preceding inspection, each inspection item all including shooing, the inspection condition, inspection person and check-out time.
Preferably, the economizer inspection module comprises a tube sample length, a tube sample processing condition, a tube sample inner diameter size, a tube sample outer wall condition, a tube sample inner wall condition, a scale sample shape, a corrosion condition after chemical cleaning, a scale amount and a deposition rate; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the inner wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time; the scale sample shape and the corrosion condition after chemical cleaning, and each inspection item comprises photographing, inspection condition, inspection person and inspection time.
Preferably, the water wall inspection module comprises tube sample length, tube sample processing condition, tube sample inner diameter size, tube sample outer wall condition, fire facing side condition, back fire side condition, scale amount and deposition rate; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time; the fire side condition and the back fire side condition are inspected, and each inspection item comprises a picture taking, an inspection condition, an inspector and inspection time.
Preferably, the superheater check module comprises a tube sample length, a tube sample processing condition, a tube sample inner diameter size, a tube sample outer wall condition, a tube sample inner wall condition, a scale sample or oxide skin form, a corrosion condition after chemical cleaning, a scale amount or an oxide skin thickness; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the oxide skin thickness, and all inspection items comprise inspection conditions, inspectors and inspection time; the forms of the scale samples or oxide scales and the corrosion conditions after chemical cleaning comprise photographing, inspection conditions, inspectors and inspection time;
the reheater inspection module comprises a tube sample length, a tube sample processing condition, a tube sample inner diameter size, a tube sample outer wall condition, a tube sample inner wall condition, a scale amount or an oxide skin form, a corrosion condition after chemical cleaning, a scale amount or an oxide skin thickness; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the thickness of oxidized scale, and all items comprise inspection conditions, inspectors and inspection time; scale sample or oxide scale form, corrosion condition after chemical cleaning, and various inspection items including photographing, inspection condition, inspector and inspection time;
the waste heat boiler inspection module comprises an evaporator, an economizer, a superheater and a flue gas side; each inspection item comprises a picture taking, an inspection condition, an inspection person and inspection time;
preferably, the steam turbine inspection module comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder; the high-pressure cylinder comprises salt accumulation conditions and pH (potential of hydrogen) of all stages of blades, the existence of copper in all stages of blades, scale sample forms on all stages of blades, mechanical damage conditions of all stages of blades, corrosion conditions of all stages of blades, conditions of a wheel disc and a shaft, deposition amount and deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time; the intermediate pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the mechanical damage condition of each stage of blade, the corrosion condition of each stage of blade, the conditions of a wheel disc and a shaft, the deposition amount and the deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time; the low-pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the iron oxide deposition condition of the shroud band of each stage, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate; the salt accumulation condition and pH value of each stage of blade, the existence or nonexistence of copper of each stage of blade, the scale sample form on each stage of blade, the iron oxide deposition condition of the shroud band of each stage, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate, and each inspection item comprises photographing, inspection condition, inspector and inspection time;
preferably, the condenser inspection module comprises a water side, a steam side and an extraction pipe; the water side comprises the conditions of sediments and microorganisms in the water chamber, the conditions of corrosion and scaling of the condenser, the conditions of corrosion of the inner wall and components of the water chamber, the conditions of corrosion prevention of the water chamber and a pipeline and the conditions of leakage and blockage prevention; the water chamber comprises a water chamber, a condenser, a water chamber, a pipeline, a water chamber, a water tank cover and a water tank cover, wherein the water tank cover is arranged on the water tank cover; the steam side comprises the conditions of damage and blowing loss of a condenser pipe, the inspection of an outermost pipe partition plate, the scaling condition of the outer wall of the condenser pipe, the corrosion condition of the inner wall of the condenser shell, the deposition condition of the bottom of the condenser and a water spraying channel steel; the method comprises the following steps of (1) carrying out damage and blowing on a condenser pipe, detecting an outermost pipe partition plate, scaling on the outer wall of the condenser pipe, rusting on the inner wall of a condenser shell, depositing on the bottom of the condenser and spraying channel steel, wherein each detection item comprises photographing, detection conditions, a person to be detected and detection time; the pumping pipe comprises an ammonia corrosion condition of an outer wall, a scaling corrosion condition of an inner wall, a deposition amount or a scale layer thickness; ammonia corrosion condition of the outer wall, scaling corrosion condition of the inner wall, deposition amount or thickness of a scale layer, wherein each inspection item comprises photographing, inspection condition, inspector and inspection time;
the oil system inspection module comprises turbine oil and fire-resistant oil; the steam turbine oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are detected by the detection items including photographing, detection condition, detection person and detection time; the fire-resistant oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are detected by the detection items including photographing, detection condition, detection person and detection time;
the output module comprises an output module, and is characterized in that: the check information generation document can be output to other equipment by the mobile phone.
The invention also provides a thermal power plant unit maintenance chemical inspection method, which is characterized by comprising the following steps: the method comprises the following specific steps:
(1) collecting unit parameters and running water vapor quality, load, pollution discharge rate and water replenishing rate data;
(2) the problems of the power generation equipment are judged in advance according to the data,
(3) the power generation equipment is checked and summarized according to the prejudgment,
(4) judging the health state of the unit based on the checking result,
(5) and the maintenance and operation modes of the unit are improved.
Preferably, the handheld auxiliary system is installed in a smart phone or other handheld terminals in the form of APP, the APP is opened, and a user name and a password are input to log in the APP.
Compared with the prior art, the invention has the following advantages and effects: the invention utilizes the unit overhaul chemical inspection method of the thermal power plant and the auxiliary system of the handheld operation, so that the chemical inspection work is simpler and more efficient, the technical capability requirement of inspection personnel is reduced, the inspection process is smoother and more comprehensive, the problem of omission of inspection items is avoided, after the field inspection is finished, the inspection information production document is output to other equipment, the later-stage arrangement workload is reduced, the work efficiency is improved, the problem of confusion of photos and inspection information is avoided, and finally the unit maintenance and operation level is improved according to the inspection method.
Drawings
Fig. 1 is a schematic diagram of a thermal power plant unit overhaul chemical inspection method according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a handheld auxiliary system for unit overhaul chemical inspection of a thermal power plant according to an embodiment of the invention.
Fig. 3 is a flow chart of the inspection of the color of the inner wall of the steam drum in the steam drum inspection module according to the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 1 to 2, the method for inspecting the unit overhaul chemistry of the thermal power plant in the embodiment includes the following specific steps: (1) collecting unit parameters and running water vapor quality, load, pollution discharge rate and water replenishing rate data; (2) pre-judging the problems of the power generation equipment according to the data, (3) inspecting and summarizing the power generation equipment according to the pre-judgment; (4) judging the health state of the unit based on the inspection result; (5) and the maintenance and operation modes of the unit are improved.
The handheld auxiliary system of this embodiment includes that handheld auxiliary system includes unit maintenance information module, steam pocket inspection module, economizer inspection module, water-cooling wall inspection module, over heater inspection module, re-heater inspection module, exhaust-heat boiler inspection module, steam turbine inspection module, condenser inspection module, oil system inspection module, output module.
The unit maintenance information module comprises maintenance time, running hours and statistics of conditions since the previous maintenance; the maintenance time comprises the maintenance starting time, the maintenance finishing date and the previous maintenance finishing date; the number of operating hours comprises the time since the last overhaul and the time since the unit is put into operation; the statistics of the conditions since the last overhaul comprise the evaporation capacity of the boiler, the load of a unit, the water replenishing rate of the boiler, the pollution discharge rate of the boiler, the number of standby hours, the number of starting and stopping times, the checking of the standby protection method and effect of the boiler, the operation parameters of the scaling of the reaction thermal equipment, the abnormity or fault related to chemical supervision and other conditions since the last overhaul.
The steam pocket inspection module comprises the color of the inner wall of the steam pocket, the condition of steam-water boundary, the presence or absence of accumulated water at the bottom, the presence or absence of sediment at the bottom, the corrosion and scaling condition of a water side, the corrosion and scaling salt accumulation condition of a steam side, the condition of a cyclone cylinder and a corrugated plate, the presence or absence of falling of a porous plate, the condition of a dosing pipe, the condition of a drain pipe, the condition of a water supply pipeline, the condition of a water supply steam washing device and the inspection before a steam pocket; this steam pocket inner wall colour, soda boundary condition, there is not ponding bottom, there is not deposit bottom, water side corrosion scale deposit condition, steam side corrosion scale deposit salt condition, whirlwind section of thick bamboo and wave plate condition, perforated plate have or not drop, add the pencil condition, blow off pipe condition, the water supply pipe condition, for washing steam device condition and steam pocket seal door preceding inspection, each inspection item all including shooing, the inspection condition, inspection person and check-out time.
The economizer inspection module comprises a pipe sample length, a pipe sample processing condition, a pipe sample inner diameter size, a pipe sample outer wall condition, a pipe sample inner wall condition, a scale sample shape, a corrosion condition after chemical cleaning, a scale amount and a deposition rate; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the inner wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time; the scale sample shape and the corrosion condition after chemical cleaning, and each inspection item comprises photographing, inspection condition, inspection person and inspection time.
The water-cooled wall inspection module comprises tube sample length, tube sample processing condition, tube sample inner diameter size, tube sample outer wall condition, fire facing side condition, back fire side condition, scale amount and deposition rate; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time; the fire side condition and the back fire side condition are inspected, and each inspection item comprises a picture taking, an inspection condition, an inspector and inspection time.
The superheater inspection module of the embodiment comprises tube sample length, tube sample processing condition, tube sample inner diameter size, tube sample outer wall condition, tube sample inner wall condition, scale sample or oxide skin form, corrosion condition after chemical cleaning, scale amount or oxide skin thickness; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the oxide skin thickness, and all inspection items comprise inspection conditions, inspectors and inspection time; the forms of the scale samples or oxide scales and the corrosion conditions after chemical cleaning comprise photographing, inspection conditions, inspectors and inspection time; the reheater inspection module comprises a tube sample length, a tube sample processing condition, a tube sample inner diameter size, a tube sample outer wall condition, a tube sample inner wall condition, a scale amount or an oxide skin form, a corrosion condition after chemical cleaning, a scale amount or an oxide skin thickness; the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the thickness of oxidized scale, and all items comprise inspection conditions, inspectors and inspection time; the shape of scale or oxide scale, and the corrosion condition after chemical cleaning, and each inspection item comprises photographing, inspection condition, inspector and inspection time.
The waste heat boiler inspection module comprises an evaporator, an economizer, a superheater and a flue gas side; this evaporimeter, economizer, over heater and flue gas side, each inspection item all includes and shoots, inspection condition, inspection person and inspection time.
The steam turbine inspection module comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder; the high-pressure cylinder comprises salt accumulation conditions and pH (potential of hydrogen) of all stages of blades, the existence of copper in all stages of blades, scale sample forms on all stages of blades, mechanical damage conditions of all stages of blades, corrosion conditions of all stages of blades, conditions of a wheel disc and a shaft, deposition amount and deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time; the intermediate pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the mechanical damage condition of each stage of blade, the corrosion condition of each stage of blade, the conditions of a wheel disc and a shaft, the deposition amount and the deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time; the low-pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the iron oxide deposition condition of the shroud band of each stage, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate; the method comprises the steps of measuring the deposition condition and pH value of each stage of blade, the existence or nonexistence of copper of each stage of blade, the scale sample form on each stage of blade, the deposition condition of iron oxide on each stage of shroud ring, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate, and each inspection item comprises photographing, inspection condition, inspector and inspection time.
The condenser inspection module comprises a water side, a steam side and an extraction pipe; the water side comprises the conditions of sediments and microorganisms in the water chamber, the conditions of corrosion and scaling of the condenser, the conditions of corrosion of the inner wall and components of the water chamber, the conditions of corrosion prevention of the water chamber and a pipeline and the conditions of leakage and blockage prevention; the water chamber comprises a water chamber, a condenser, a water chamber, a pipeline, a water chamber, a water tank cover and a water tank cover, wherein the water tank cover is arranged on the water tank cover; the steam side comprises the conditions of damage and blowing loss of a condenser pipe, the inspection of an outermost pipe partition plate, the scaling condition of the outer wall of the condenser pipe, the corrosion condition of the inner wall of the condenser shell, the deposition condition of the bottom of the condenser and a water spraying channel steel; the method comprises the following steps of (1) carrying out damage and blowing on a condenser pipe, detecting an outermost pipe partition plate, scaling on the outer wall of the condenser pipe, rusting on the inner wall of a condenser shell, depositing on the bottom of the condenser and spraying channel steel, wherein each detection item comprises photographing, detection conditions, a person to be detected and detection time; the pumping pipe comprises an ammonia corrosion condition of an outer wall, a scaling corrosion condition of an inner wall, a deposition amount or a scale layer thickness; the outer wall ammonia corrosion condition, the inner wall scaling corrosion condition, the deposition amount or the scale layer thickness, and each inspection item comprises photographing, inspection condition, inspection person and inspection time.
The oil system inspection module of the embodiment comprises turbine oil and fire-resistant oil; the steam turbine oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are detected by the detection items including photographing, detection condition, detection person and detection time; the fire-resistant oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are checked, and all the checking items comprise photographing, checking condition, checking personnel and checking time.
The output module of the embodiment comprises an output module, and is characterized in that: the check information generation document can be output to other equipment by the mobile phone.
Example (b):
referring to fig. 2 to 3, the handheld auxiliary system is installed in a smart phone or other handheld terminal in the form of APP, opens the APP, and inputs a user name and a password to log in the APP.
And (3) entering a unit maintenance information module, checking the main steam iron content, sodium content, hydrogen conductivity, unit pollution discharge rate and other information related to steam drum inspection in the water vapor quality, and if the indexes are unqualified or higher, indicating that the problems of more color levels of the inner wall of the steam drum, unobvious steam-water boundary lines, falling of a cyclone drum and a corrugated plate, failure of a steam supply and washing device and the like exist possibly.
The steam drum detection device is withdrawn from a unit maintenance information module, enters a steam drum detection module, performs detailed photographing and detection on the color of the inner wall of the steam drum, the steam-water boundary, the cyclone cylinder, the corrugated plate, the steam supply and washing device and the like according to pre-judgment, records the problems found in the detection, and summarizes the reasons of the problems.
And judging the overall health state of the steam pocket according to the inspection result of each device in the inspection steam pocket.
According to the overall health state of the steam drum, a method for processing the device with problems in the steam drum is provided, preventive measures for preventing the problems from happening again are provided, and finally the maintenance and operation modes of the unit are improved.
And recording the problem processing method and the preventive measures in the corresponding modules, and filling inspectors and inspection time for later problem tracing.
The embodiment can overcome current inspection work and require highly to the inspection personnel professional technical ability, and the on-the-spot inspection is easy to take place the inspection project and is omitted, and inspection later stage arrangement work load is big, work efficiency is low, easily take place the photo and the inspection information confusion scheduling problem, lets the unit overhaul chemical inspection work really play the effect that improves unit maintenance and operation level.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a handheld auxiliary system of thermal power plant unit maintenance chemistry inspection which characterized in that: the handheld auxiliary system comprises a unit maintenance information module, a steam pocket inspection module, an economizer inspection module, a water wall inspection module, a superheater inspection module, a reheater inspection module, a waste heat boiler inspection module, a steam turbine inspection module, a condenser inspection module, an oil system inspection module and an output module.
2. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the unit maintenance information module comprises maintenance time, operation hours and statistics of conditions since the last maintenance; the maintenance time comprises the maintenance starting time, the maintenance finishing date and the previous maintenance finishing date; the number of operating hours comprises the time since the last overhaul and the time since the unit is put into operation; the statistics of the conditions since the last overhaul comprise the evaporation capacity of the boiler, the load of a unit, the water replenishing rate of the boiler, the pollution discharge rate of the boiler, the number of standby hours, the number of starting and stopping times, the checking of the standby protection method and effect of the boiler, the operation parameters of the scaling of the reaction thermal equipment, the abnormity or fault related to chemical supervision and other conditions since the last overhaul.
3. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the steam pocket inspection module comprises the color of the inner wall of the steam pocket, the condition of steam-water boundary, the presence or absence of accumulated water at the bottom, the presence or absence of sediment at the bottom, the corrosion and scaling condition of a water side, the corrosion and scaling salt accumulation condition of a steam side, the condition of a cyclone cylinder and a corrugated plate, the presence or absence of falling of a porous plate, the condition of a dosing pipe, the condition of a drain pipe, the condition of a water supply pipeline, the condition of a water supply steam washing device and the inspection before a steam pocket is sealed;
this steam pocket inner wall colour, soda boundary condition, there is not ponding bottom, there is not deposit bottom, water side corrosion scale deposit condition, steam side corrosion scale deposit salt condition, whirlwind section of thick bamboo and wave plate condition, perforated plate have or not drop, add the pencil condition, blow off pipe condition, the water supply pipe condition, for washing steam device condition and steam pocket seal door preceding inspection, each inspection item all including shooing, the inspection condition, inspection person and check-out time.
4. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the economizer inspection module comprises a pipe sample length, a pipe sample processing condition, a pipe sample inner diameter size, a pipe sample outer wall condition, a pipe sample inner wall condition, a scale sample shape, a corrosion condition after chemical cleaning, a scale amount and a deposition rate;
the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the inner wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time;
the scale sample shape and the corrosion condition after chemical cleaning, and each inspection item comprises photographing, inspection condition, inspection person and inspection time.
5. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the water-cooled wall inspection module comprises tube sample length, tube sample processing condition, tube sample inner diameter size, tube sample outer wall condition, fire facing side condition, back fire side condition, scale amount and deposition rate;
the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the amount of scale and the deposition rate, wherein each inspection item comprises inspection condition, inspector and inspection time;
the fire side condition and the back fire side condition are inspected, and each inspection item comprises a picture taking, an inspection condition, an inspector and inspection time.
6. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the superheater inspection module comprises tube sample length, tube sample processing condition, tube sample inner diameter size, tube sample outer wall condition, tube sample inner wall condition, scale sample or oxide skin form, corrosion condition after chemical cleaning, scale amount or oxide skin thickness;
the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the oxide skin thickness, and all inspection items comprise inspection conditions, inspectors and inspection time; the forms of the scale samples or oxide scales and the corrosion conditions after chemical cleaning comprise photographing, inspection conditions, inspectors and inspection time;
the reheater inspection module comprises a tube sample length, a tube sample processing condition, a tube sample inner diameter size, a tube sample outer wall condition, a tube sample inner wall condition, a scale amount or an oxide skin form, a corrosion condition after chemical cleaning, a scale amount or an oxide skin thickness;
the length of the tube sample, the processing condition of the tube sample, the inner diameter size of the tube sample, the outer wall condition of the tube sample, the scale amount or the thickness of oxidized scale, and all items comprise inspection conditions, inspectors and inspection time; scale sample or oxide scale form, corrosion condition after chemical cleaning, and various inspection items including photographing, inspection condition, inspector and inspection time;
the waste heat boiler inspection module comprises an evaporator, an economizer, a superheater and a flue gas side; this evaporimeter, economizer, over heater and flue gas side, each inspection item all includes and shoots, inspection condition, inspection person and inspection time.
7. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the steam turbine inspection module comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder;
the high-pressure cylinder comprises salt accumulation conditions and pH (potential of hydrogen) of all stages of blades, the existence of copper in all stages of blades, scale sample forms on all stages of blades, mechanical damage conditions of all stages of blades, corrosion conditions of all stages of blades, conditions of a wheel disc and a shaft, deposition amount and deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time;
the intermediate pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the mechanical damage condition of each stage of blade, the corrosion condition of each stage of blade, the conditions of a wheel disc and a shaft, the deposition amount and the deposition rate; the method comprises the steps of (1) carrying out salt accumulation condition and pH (potential of hydrogen) on each stage of blade, existence of copper in each stage of blade, scale sample form on each stage of blade, mechanical damage condition of each stage of blade, corrosion condition of each stage of blade, wheel disc and shaft condition, deposition amount and deposition rate on each stage of blade, wherein each inspection item comprises photographing, inspection condition, inspection person and inspection time;
the low-pressure cylinder comprises the salt accumulation condition and pH of each stage of blade, the existence of copper in each stage of blade, the scale sample form on each stage of blade, the iron oxide deposition condition of the shroud band of each stage, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate; the method comprises the steps of measuring the deposition condition and pH value of each stage of blade, the existence or nonexistence of copper of each stage of blade, the scale sample form on each stage of blade, the deposition condition of iron oxide on each stage of shroud ring, the mechanical damage condition of each stage of blade, the corrosion or erosion condition of each stage of blade, the condition of each stage of partition plate, the condition of wheel shaft, the deposition amount and the deposition rate, and each inspection item comprises photographing, inspection condition, inspector and inspection time.
8. The thermal power plant unit servicing chemical inspection handheld auxiliary system of claim 1, characterized in that: the condenser inspection module comprises a water side, a steam side and an extraction pipe;
the water side comprises the conditions of sediments and microorganisms in the water chamber, the conditions of corrosion and scaling of the condenser, the conditions of corrosion of the inner wall and components of the water chamber, the conditions of corrosion prevention of the water chamber and a pipeline and the conditions of leakage and blockage prevention; the water chamber comprises a water chamber, a condenser, a water chamber, a pipeline, a water chamber, a water tank cover and a water tank cover, wherein the water tank cover is arranged on the water tank cover;
the steam side comprises the conditions of damage and blowing loss of a condenser pipe, the inspection of an outermost pipe partition plate, the scaling condition of the outer wall of the condenser pipe, the corrosion condition of the inner wall of the condenser shell, the deposition condition of the bottom of the condenser and a water spraying channel steel; the method comprises the following steps of (1) carrying out damage and blowing on a condenser pipe, detecting an outermost pipe partition plate, scaling on the outer wall of the condenser pipe, rusting on the inner wall of a condenser shell, depositing on the bottom of the condenser and spraying channel steel, wherein each detection item comprises photographing, detection conditions, a person to be detected and detection time;
the pumping pipe comprises an ammonia corrosion condition of an outer wall, a scaling corrosion condition of an inner wall, a deposition amount or a scale layer thickness; ammonia corrosion condition of the outer wall, scaling corrosion condition of the inner wall, deposition amount or thickness of a scale layer, wherein each inspection item comprises photographing, inspection condition, inspector and inspection time;
the oil system inspection module comprises turbine oil and fire-resistant oil; the steam turbine oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are detected by the detection items including photographing, detection condition, detection person and detection time; the fire-resistant oil comprises oil sludge deposition and corrosion conditions, an oil cooler water side and an oil cooler oil side; the oil sludge deposition and corrosion condition, the water side of the oil cooler and the oil side of the oil cooler are detected by the detection items including photographing, detection condition, detection person and detection time;
the output module comprises an output module, and is characterized in that: the check information generation document can be output to other equipment by the mobile phone.
9. A thermal power plant unit overhaul chemical inspection method, which adopts the thermal power plant unit overhaul chemical inspection handheld auxiliary system of any one of claims 1 to 8, and is characterized in that: the method comprises the following specific steps:
(1) collecting unit parameters and running water vapor quality, load, pollution discharge rate and water replenishing rate data;
(2) the problems of the power generation equipment are judged in advance according to the data,
(3) the power generation equipment is checked and summarized according to the prejudgment,
(4) judging the health state of the unit based on the checking result,
(5) and the maintenance and operation modes of the unit are improved.
10. The thermal power plant unit service chemical inspection method of claim 9, wherein: the handheld auxiliary system is installed in a smart phone or other handheld terminals in the form of APP, the APP is opened, and a user name and a password are input to log in the APP.
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