CN2779328Y - High pressure water jetting online cleaning robot for power plant condenser - Google Patents
High pressure water jetting online cleaning robot for power plant condenser Download PDFInfo
- Publication number
- CN2779328Y CN2779328Y CN 200520069296 CN200520069296U CN2779328Y CN 2779328 Y CN2779328 Y CN 2779328Y CN 200520069296 CN200520069296 CN 200520069296 CN 200520069296 U CN200520069296 U CN 200520069296U CN 2779328 Y CN2779328 Y CN 2779328Y
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- CN
- China
- Prior art keywords
- condenser
- power plant
- high pressure
- pressure water
- mechanical arm
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 230000035699 permeability Effects 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 15
- 239000010949 copper Substances 0.000 abstract description 15
- 229910052802 copper Inorganic materials 0.000 abstract description 15
- 239000003245 coal Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model relates to a high-pressure water jet online cleaning robot for a condenser of a power plant, which is most suitable for the online scale removal of the condenser of the power plant. The utility model comprises a telescopic mechanical arm, a rotary mechanical arm and a cleaning device and is controlled by a hydraulic rotary device and a high pressure water pipeline, and the telescopic mechanical arm and the rotary mechanical arm are inserted in the condenser. A spray head and a high-pressure hose are conveyed into a copper pipe of the condenser to conduct high-pressure water jet cleaning to scale in the copper pipe of the condenser, when the condenser is cleaned, a generator set does not need to be shut down. The maintenance cost of the power plant is saved, the running efficiency of the power plant is increased, coal consumption is reduced, and energy is saved. The requirements of the quality of circulating water of a condenser of a heat engine plant are decreased, the running cost of the heat engine plant used for treating the circulating water is saved, the utility model has the advantages of thorough cleaning and no pollution, and economic loss brought by the shutdown is avoided.
Description
Technical field
The utility model relates to on-line cleaning power plant steam condenser using high pressure water jet device people, is particularly useful for the online scale removal of plant condenser.
Background technology
Condenser is one of the main auxiliary equipment in thermal power plant, is undertaking the vital task of cooling off turbine discharge, and the quality of its service behaviour is to generating efficiency, the gross coal consumption rate important influence of power plant.Condenser is made up of thousands of copper pipes, copper pipe is walked steam outward, walk cooling water in the copper pipe, because of the existence of heat exchange is arranged, the salt in the cooling water is constantly being separated out in the heating process continuously, forms a large amount of incrustation scales and attached on the tube wall, cause vacuum decline in the condenser, gross coal consumption rate rises, and cost of electricity-generating increases, and therefore reduces the efficient of Turbo-generator Set.When about condenser fouling 0.5mm, can make vacuum by dropping to more than 90% below 85%, make gross coal consumption rate rising 15～20g/kWh, it for year running 7000h, rate of load condensate 90% 300MW unit, to consume about 28～380,000 t of standard coal every year more, if incrustation scale thickness reaches 1mm, then not only many coal consumptions will be above annual more than 50,000 ton, and will influence 10% exert oneself.The condenser copper tube fouling also will cause dezincify (brass), nickel removal (copper-nickel alloy) and spot corrosion in addition, and the condenser tube of cleaning can use more than 15 years, fouling and untimely elimination can make it penetrate in 3 years.Copper tube leakage of condenser is the root of thermoelectricity pipe water quality fault, during the condenser tube corrosion failure, the cooling water of band pressure bleeds in the condensed water of negative pressure, and condensed water (often being called condensate water) accounts for about 95% of boiler feedwater, after being polluted, it will cause the boiler scaling, produce acid corrosion (when cooling water is seawater) or caustic corrosion (when cooling water is fresh water), also make superheater and steam turbine salt scale coagulation.Therefore, no matter the efficient of collateral security thermal power plant and the aspect of exerting oneself are considered, still from preventing the condenser tube corrosion, and then prevent that gyp, burn into from putting the salt aspect and considering how in time to remove condenser incrustation, are the problems that power plant needs to be resolved hurrily.At present, the scale removal of plant condenser is divided into off-line and online two kinds: off-line cleans main artificial cleaning of adopting, and after promptly shutting down, the big lid of condenser is opened, and takes out platform with scaffold, with wire brush copper pipe pursue the root cleaning again.Along with unit capacity increases; take hydronic unit to increase; the condenser fouling is tending towards generally and is serious, and the radical of copper pipe increases and the size lengthening, makes artificial scrubbing become difficult; and because off-line cleans can carry out after must shutting down; the expense of opening, shutting down and manually cleaning is very high, is about 1,000,000 yuan (calculating with 300,000 kilowatts of units), and can't in time remove the incrustation that produces in the unit operation; efficient is low during cleaning, and labour intensity is big.Online scale removal has usually: 1) throw in glueballs and clean in condenser, though it can play the effect of scale removal, can not effectively remove descale, and the glueballs injected volume is bigger, the rate of recovery is low, and operating cost is higher.2) clean with chemical agent, because along with unit capacity increases, take hydronic unit to increase, it is general and serious that the condenser fouling is tending towards, and frequently uses the hydrochloric acid cleaning and descaling, the Copper Tube Corrosion that can cause condenser, reduce the service life of unit, and operating cost is higher, is example with the 300MW unit, one unit year cleaning charge reach about 2,000,000 and contaminated environment.
Summary of the invention
The problem that exists in view of prior art: the purpose of this utility model provide a kind of simple in structure, cost is low, the on-line cleaning power plant steam condenser using high pressure water jet device people of features high scale-removing effect.
The utility model on-line cleaning power plant steam condenser using high pressure water jet device people, it is made of the flexible mechanical arm in the insertion condenser, the hydraulic permeability reversing gear that is located at flexible mechanical arm front portion, rotary machine arm, washer and the water under high pressure pipeline extension and retraction system that is connected on the hydraulic permeability reversing gear, the afterbody of flexible mechanical arm is provided with and makes its flexible hydraulic jack, hydraulic jack is connected on the bearing by ring flange, and bearing is located on the outer wall of condenser.
The utility model on-line cleaning power plant steam condenser using high pressure water jet device people, described hydraulic permeability reversing gear comprises the buoyant equilibrium housing, be located at the hydraulic gyration device of buoyant equilibrium enclosure interior, the Precise Angular Displacement Sensor of rotating Hydrauservo System of control hydraulic gyration device and induction angle of revolution; Washer is made of Spray-nozzle carrier and the cleaning shower nozzle that is located in the Spray-nozzle carrier; Water under high pressure pipeline extension and retraction system is made of the assembly pulley and the injection impulsion capstan winch of the flexible pipe that water under high pressure is provided, folding and unfolding flexible pipe.
The utility model on-line cleaning power plant steam condenser using high pressure water jet device people, be best suited for the online scale removal of plant condenser, by inserting flexible mechanical arm and the rotary machine arm in the condenser, shower nozzle and high-pressure hose are sent in the condenser copper tube, dirt to condenser copper tube inside carries out Cleaning by High Pressure Water Jet, generating set need not be shut down when cleaning condenser, saved the maintenance cost in power plant greatly, improved the operational efficiency in power plant, reduce coal consumption, energy savings, and reduced thermal power plant's condenser vapour cycle water quality requirement, save the operating cost that thermal power plant is used for circulating water treatment; Clean thoroughly, pollution-free, avoided shutting down the economic loss of bringing, have practicality widely.
Description of drawings
Fig. 1 is the utility model structural front view.
Fig. 2 is the utility model structure vertical view.
Among the figure: the flexible mechanical arm 6-hydraulic jack 7-oil cylinder mounting flange 8-erection support 9-oil cylinder hydraulic servo-drive system 10-Hydraulic Station 11-high-pressure water prmp room 12-condenser shell 13-condenser copper tube 14-hydraulic oil oil return pipe 15-hydraulic oil fuel feed pump 16-precise displacement sensor 17-water jet cleaning shower nozzle 18-Precise Angular Displacement Sensor 19 hydraulic gyration servo-drive system 20-hydraulic permeability reversing gear 21-hydraulic permeability reversing gear mounting flange 22-assembly pulleys of 1-buoyant equilibrium housing 2-rotary machine arm 3-hydraulic oil flexible pipe drag chain 4-Spray-nozzle carrier 5-23 high-pressure water hoses 24 spray the impulsion capstan winch
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model on-line cleaning power plant steam condenser using high pressure water jet tool hand, it is mainly by the mechanical arm positioner, high-pressure water pipe extension and retraction system and computer control system constitute, the high-pressure water pipe extension and retraction system connects by a high-pressure hydraulic pump, the high-pressure water prmp room that pipe-line system and by-pass valve control are formed, the mechanical arm positioner is by flexible mechanical arm 5, be located at the hydraulic permeability reversing gear of flexible mechanical arm 5 front portions, the rotary machine arm 2 that is connected on the hydraulic permeability reversing gear constitutes, hydraulic permeability reversing gear comprises buoyant equilibrium housing 1, be located at the hydraulic gyration device 20 of buoyant equilibrium housing 1 inside, drive the Precise Angular Displacement Sensor 18 of hydraulic gyration device 20 rotating Hydrauservo Systems 19 and induction angle of revolution.The afterbody of mechanical arm positioner is provided with hydraulic jack 6, and hydraulic jack 6 connects hydraulic jack servo-drive system 9, is connected on the bearing 8 by ring flange 7, and bearing 8 is located on the outer wall of condenser 12.The high-pressure water hose management devices is made of injection impulsion capstan winch 24, the assembly pulley 22 of the flexible pipe 23 that water under high pressure is provided, folding and unfolding flexible pipe 23.High-pressure nozzle folding and unfolding control device is by Spray-nozzle carrier 4 and be located at cleaning shower nozzle 17, the nozzle position inductive switch in the Spray-nozzle carrier 4 and the inductor that is installed on the high-pressure hose is formed.Hydraulic jack 6 is connected on the bearing 8 by ring flange 7, and bearing 8 is located on the outer wall of condenser 12.Hydraulic jack 6 front portions are provided with accurate linear displacement transducer, and afterbody is equipped with hydraulic jack servo-drive system 9.Hydraulic Station 10 provides hydraulic oil to enter hydraulic jack 6 by hydraulic oil fuel feed pump 15, promotes flexible mechanical arm 5 and inserts in the condenser 12 along straight line.The data that the computer control system that is made of data acquisition module, industrial computer, interface board and execution enlarger etc. provides according to linear displacement transducer provide control signal to hydraulic jack servo-drive system 9, accurately the straight-line displacement amount of the flexible mechanical arm of control.The oil return of oil cylinder servo-drive system 9 is by oil return pipe 14 hydraulic return stations 10.5 front ends of flexible mechanical arm are provided with hydraulic permeability reversing gear.Hydraulic permeability reversing gear is made up of the Precise Angular Displacement Sensor 18 that order is installed in hydraulic gyration device 20, hydraulic gyration servo-drive system 19 and the induction angle of revolution of buoyant equilibrium housing 1 inside.Hydraulic gyration device 20 is fixedly installed in the buoyant equilibrium housing 1 by flange, and 1 sealing of buoyant equilibrium housing overcomes the gravity of mechanical arm 5 front portions that stretches by buoyancy of water, and is not crooked to guarantee flexible mechanical arm 5.Being installed on the hydraulic permeability reversing gear of rotary machine arm 2.The data that computer control system provides according to angular displacement sensor 18 provide control signal to hydraulic gyration servo-drive system 19, accurately control the angle of revolution of rotary machine arm.The fuel feeding of hydraulic permeability reversing gear and oil return flexible pipe drag to connect by the hydraulic oil flexible pipe and are communicated with Hydraulic Station 10.Washer is equipped with in the end of rotary machine arm 1, and washer is made of supporting seat 4 and the cleaning shower nozzle 17 that is contained in the supporting seat, cleans shower nozzle 17 ends and is connected with high-pressure water hose 23.By controlling the compound motion of flexible mechanical arm 5 and rotary machine arm 2, can finish the accurate two-dimensional localization of washer, to clean shower nozzle 17 and aim at the entry position of condenser copper tubes 13, the impulse force by water under high pressure is injected shower nozzle 17 and high-pressure water hose 23 and is carried out on-line cleaning in the condenser copper tube 13 afterwards.In order to put in order and folding and unfolding high-pressure water hose 23, avoid flexible pipe bite or knotting, high-pressure water hose reason device is equipped with specially, high-pressure water hose reason device is made of assembly pulley 22, high-pressure water hose 23 and injection impulsion capstan winch 24, it can automatically finish the folding and unfolding of flexible pipe, and assurance high-pressure water hose 23 is in tensioning state at any time and don't can be broken.
Claims (4)
1. on-line cleaning power plant steam condenser using high pressure water jet device people, it is characterized in that: it is by inserting flexible mechanical arm (5) in the condenser (12), being located at rotary machine arm (2), washer and the water under high pressure pipeline extension and retraction system that the anterior hydraulic permeability reversing gear of flexible mechanical arm (5) is connected on the hydraulic gyration device (20) and constituting, the afterbody of flexible mechanical arm (5) is provided with and makes its flexible hydraulic jack (6), hydraulic jack (6) is connected on the bearing (8) by ring flange (7), and bearing (8) is located on the outer wall of condenser (12).
2. on-line cleaning power plant steam condenser using high pressure water jet device people according to claim 1, it is characterized in that: described hydraulic permeability reversing gear comprises buoyant equilibrium housing (1), be located at the inner hydraulic gyration device (20) of buoyant equilibrium housing (1), the Precise Angular Displacement Sensor (18) of control rotating Hydrauservo System of hydraulic gyration device (20) (19) and induction angle of revolution.
3. on-line cleaning power plant steam condenser using high pressure water jet device people according to claim 1 is characterized in that: described washer is by Spray-nozzle carrier (4) and be located at interior cleaning shower nozzle (17) formation of Spray-nozzle carrier (4).
4. on-line cleaning power plant steam condenser using high pressure water jet device people according to claim 1 is characterized in that: described water under high pressure pipeline extension and retraction system is made of the assembly pulley (22) and the impulsion capstan winch (24) of the high-pressure water hose that water under high pressure is provided (23), folding and unfolding flexible pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069296 CN2779328Y (en) | 2005-02-28 | 2005-02-28 | High pressure water jetting online cleaning robot for power plant condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069296 CN2779328Y (en) | 2005-02-28 | 2005-02-28 | High pressure water jetting online cleaning robot for power plant condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779328Y true CN2779328Y (en) | 2006-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520069296 Expired - Fee Related CN2779328Y (en) | 2005-02-28 | 2005-02-28 | High pressure water jetting online cleaning robot for power plant condenser |
Country Status (1)
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| CN (1) | CN2779328Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440378A (en) * | 2014-10-31 | 2015-03-25 | 西安交通大学 | Intelligent cutting fluid injection device and method |
| CN106643279A (en) * | 2016-12-29 | 2017-05-10 | 广西恩康机械设备有限公司 | Automatic cleaning method for shell-and-tube heat exchanger |
| CN106705746A (en) * | 2016-12-29 | 2017-05-24 | 广西恩康机械设备有限公司 | Multi-gun tubular heat exchanger intelligent cleaning robot |
| CN109870068A (en) * | 2017-12-01 | 2019-06-11 | 北京蓝星清洗有限公司 | A kind of tube side Cleaning by High Pressure Water Jet executive device |
| CN111624079A (en) * | 2020-05-15 | 2020-09-04 | 王韬略 | Metallographic sample preparation robot for power plants and chemical plants |
-
2005
- 2005-02-28 CN CN 200520069296 patent/CN2779328Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440378A (en) * | 2014-10-31 | 2015-03-25 | 西安交通大学 | Intelligent cutting fluid injection device and method |
| CN106643279A (en) * | 2016-12-29 | 2017-05-10 | 广西恩康机械设备有限公司 | Automatic cleaning method for shell-and-tube heat exchanger |
| CN106705746A (en) * | 2016-12-29 | 2017-05-24 | 广西恩康机械设备有限公司 | Multi-gun tubular heat exchanger intelligent cleaning robot |
| CN106643279B (en) * | 2016-12-29 | 2018-09-11 | 广西恩康机械设备有限公司 | The auto-cleaning method of tubular heat exchanger |
| CN109870068A (en) * | 2017-12-01 | 2019-06-11 | 北京蓝星清洗有限公司 | A kind of tube side Cleaning by High Pressure Water Jet executive device |
| CN109870068B (en) * | 2017-12-01 | 2020-07-07 | 北京蓝星清洗有限公司 | Pipe-pass high-pressure water jet cleaning execution device |
| CN111624079A (en) * | 2020-05-15 | 2020-09-04 | 王韬略 | Metallographic sample preparation robot for power plants and chemical plants |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060510 Termination date: 20100228 |