CN104386795B - Electric-generator internal cooling water, application thereof and method for cooling electric generator - Google Patents
Electric-generator internal cooling water, application thereof and method for cooling electric generator Download PDFInfo
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- CN104386795B CN104386795B CN201410520693.7A CN201410520693A CN104386795B CN 104386795 B CN104386795 B CN 104386795B CN 201410520693 A CN201410520693 A CN 201410520693A CN 104386795 B CN104386795 B CN 104386795B
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- cooling water
- inner cooling
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- 239000000498 cooling water Substances 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 104
- 238000001816 cooling Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 167
- 239000000126 substance Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 230000001502 supplementing effect Effects 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract 2
- 230000005494 condensation Effects 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 abstract 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 11
- 229910001431 copper ion Inorganic materials 0.000 description 11
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 8
- 239000003456 ion exchange resin Substances 0.000 description 8
- 229920003303 ion-exchange polymer Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001767 cationic compounds Chemical class 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 229910001411 inorganic cation Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses electric-generator internal cooling water, and the electric-generator internal cooling water contains water discharged from a chemical water-preparation processing mixed bed and generating-set condensation water. The invention also discloses application of the above electric-generator internal cooling water to cool an electric generator. The invention also discloses a method for cooling the electric generator. The method comprises under the condition of starting an electric-generator internal cooling water system, using the water discharged from chemical water-preparation processing mixed bed and generating-set condensation water as electric-generator internal cooling water for cooling the electric generator. By employing the electric-generator internal cooling water, under the premise of utilizing resource owned by a power plant self, a simple low-cost method can be used for cooling a large-scale electric generator in a large-scale power plant with good effect without using a bypass ion exchanger which is necessary for processing the electric-generator internal cooling water in the prior art.
Description
Technical field
The present invention relates to the application and in cooled electric generator of a kind of electric generator inner cooling water, a kind of electric generator inner cooling water
The method planting cooled electric generator.
Background technology
Electromotor due to energy expenditure, portion of energy is transformed into heat energy in operation process so that rotor, stator
Temperature Deng part raises, and then leads to insulation winding aging, output drop, or even motor damage.Therefore, it is necessary to generating
Part in machine is cooled down.But, because electric generator inner cooling water is to work in the environment of high voltage electric field, therefore, and common
Cooling water is compared, and electric generator inner cooling water, in addition to will meeting the not requirement of burn into non-scaling, also should have good electrically exhausted
Edge performance.
However, in the work process of electric generator inner cooling water the inevitably oxygen in dissolved air, carbon dioxide etc.,
The ph value making electric generator inner cooling water is gradually lowered, and then causes corrosion in generator.Therefore, usually require that in electromotor
Dissolved oxygen in cold water is≤30 μ g/l, and ph value is >=7.0-9.0, and electrical conductivity is 0.4-2.0 μ s/cm；Go out from a safety viewpoint
Send out, in actual moving process, in 2010 afterwards, power plant usually requires that electric generator inner cooling water meets dl/t801-2010 mark
Standard, that is, ph value be controlled to 8.0-9.0, electrical conductivity is controlled to≤1.5 μ s/cm.
Prior art is usually (full using the hybrid resin being made up of oh type ion exchange resin and H type ion exchange resin
Sufficient gb12145-2008 standard, the power plant that part is built up the eighties controls electrical conductivity≤0.5 μ s/cm) electric generator inner cooling water is entered
Row is processed, and the ph value of electric generator inner cooling water is remained more than 7.2, but the service life of this hybrid resin is shorter, in fortune
Row cannot be realized for the ph value of electric generator inner cooling water remaining more than 7.2, and the conductance of electric generator inner cooling water after 4 months
Rate also gradually rises with the prolongation of run time, higher than 0.45 μ s/cm, even above 0.5 μ s/cm, so that after running 4 months
The electrical conductivity of electric generator inner cooling water cannot meet the use requirement of technical standard.
And, contain oh type ion exchange resin, na type ion exchange resin and H type ion exchange resin when adopting simultaneously
Hybrid resin when electric generator inner cooling water is processed, usually because adjustment resin ratio is improper or make electricity not in time
Conductance increases to quickly more than 2.0 μ s/cm.
Therefore, how to adopt inexpensive and easy method, for a long time and well by the ph value of electric generator inner cooling water
It is controlled to 7.0-9.0, electrical conductivity is controlled to 0.4-2 μ s/cm, content of copper ion is not higher than 20 μ g/l, simultaneously also will not be to generating
Machine internal part produces corrosion and remains a problem demanding prompt solution.
Content of the invention
The purpose of the present invention is the defect overcoming prior art, using the owned resource in power plant, provides a kind of use
In the electric generator inner cooling water of cooled electric generator, electric generator inner cooling water of the present invention is simple and easy to get, and even for big
The cooling of the high-rating generator in type power plant also has good effect.The method operation letter of the cooled electric generator of the present invention
Just, with low cost, by during using method of the present invention cooled electric generator, even through long cycle of operation, electromotor
Inner cold water water quality also can be maintained in acceptability limit.
To achieve these goals, on the one hand, the present invention provides a kind of electric generator inner cooling water, this electric generator inner cooling water contains
Chemical controlling the water circulation processes mixed bed water outlet and generating set condensate.
On the other hand, application in cooled electric generator for the above-mentioned electric generator inner cooling water of a kind of present invention of present invention offer.
On the other hand, the present invention provides a kind of method of cooled electric generator, and the method includes: in starter-generator inner cold water
Under conditions of system, it is used chemical controlling the water circulation to process mixed bed water outlet and generating set condensate and generates electricity as electric generator inner cooling water cooling
Machine.
By technique scheme, on the premise of using the owned resource in power plant, it is being required for existing skill
Art just can be passed through simple and with low cost under conditions of having to use for when processing electric generator inner cooling water bypassing ion exchanger
Method make to have good effect for the cooling of the high-rating generator in big power station.By the side using the present invention
During method cooled electric generator, even through long cycle of operation, the inner cold water water quality of electromotor also can be maintained in acceptability limit,
For example ph value is maintained at 8.0-9.0, and electrical conductivity is not higher than 2.0 μ s/cm, the internal part of electromotor will not be produced rotten simultaneously
Erosion.For example, from the result of embodiments of the invention it can be seen that running 4 using the method for the present invention by continuous for generating set
The water quality of electric generator inner cooling water can also be made to be maintained in acceptability limit after month, or even enable to ph value for 8.0-8.5,
Electrical conductivity is not higher than 1.5 μ s/cm, and content of copper ion is not higher than 10 μ g/l.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that it is described herein concrete
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of electric generator inner cooling water, it is mixed that this electric generator inner cooling water contains chemical controlling the water circulation process
Bed water outlet and generating set condensate.
When electric generator inner cooling water system is used for cooled electric generator by the above-mentioned electric generator inner cooling water providing the present invention,
Even through long cycle of operation, the inner cold water water quality of electromotor also can be maintained in acceptability limit.
Under preferable case, in electric generator inner cooling water of the present invention, described chemistry controlling the water circulation processes the water quality of mixed bed water outlet
Including: electrical conductivity≤0.2 μ s/cm；It is preferably 0.06-0.15 μ s/cm.
Under preferable case, in electric generator inner cooling water of the present invention, described chemistry controlling the water circulation processes the water quality of mixed bed water outlet
Including: hardness=0 μm ol/l.
Under preferable case, in electric generator inner cooling water of the present invention, described chemistry controlling the water circulation processes the water quality of mixed bed water outlet
Including: the concentration≤20 μ g/l of silicon dioxide；It is preferably 5-12 μ g/l.
Under preferable case, in electric generator inner cooling water of the present invention, described chemistry controlling the water circulation processes the water quality of mixed bed water outlet
Including: ph value is >=7.0, preferably 7.0-7.5.
Under preferable case, in electric generator inner cooling water of the present invention, the water quality of described generating set condensate includes: electricity
Conductance≤0.2 μ s/cm；It is preferably 0.08-0.11 μ s/cm.
Under preferable case, in electric generator inner cooling water of the present invention, the water quality of described generating set condensate includes: hard
=0 μm of ol/l of degree.
Under preferable case, in electric generator inner cooling water of the present invention, the water quality of described generating set condensate includes: two
Concentration≤20 μ the g/l of silicon oxide, preferably 2-12 μ g/l.
Under preferable case, in electric generator inner cooling water of the present invention, the water quality of described generating set condensate includes: ph
It is worth for 9.0-9.4.
Under preferable case, in electric generator inner cooling water of the present invention, the water quality of described generating set condensate includes: molten
Solution oxygen amount≤20 μ g/l, preferably 7-15 μ g/l.
On the other hand, the invention provides a kind of above-mentioned electric generator inner cooling water of present invention in cooled electric generator should
With.
The third aspect, the invention provides a kind of method of cooled electric generator, the method includes: cold in starter-generator
Under conditions of water system, it is used chemical controlling the water circulation process mixed bed water outlet and generating set condensate to send out as electric generator inner cooling water cooling
Motor.
In the present invention, it should be strongly noted that in the case that generating set is out of service, unless stated otherwise,
Electric generator inner cooling water system of the present invention is not out of service, keeps in this process processing mixed bed water outlet using chemical controlling the water circulation
Based on water source.And, it is well known by those skilled in the art that only carrying out the behaviour such as overhauling to electric generator inner cooling water system
Just can will be out of service for electric generator inner cooling water system when making.
Under preferable case, the method for cooled electric generator of the present invention includes: before generating set starts, using described
Chemical controlling the water circulation processes mixed bed water outlet as the basic water source of electric generator inner cooling water；After generating set starts, using described generating
Unit condensate adjusts water source as supplementing of electric generator inner cooling water.
Under preferable case, according to the method for cooled electric generator of the present invention, described chemistry controlling the water circulation processes mixed bed water outlet
Water quality include: electrical conductivity≤0.2 μ s/cm；It is preferably 0.06-0.15 μ s/cm.
Under preferable case, according to the method for cooled electric generator of the present invention, described chemistry controlling the water circulation processes mixed bed water outlet
Water quality include: hardness=0 μm ol/l.
Under preferable case, according to the method for cooled electric generator of the present invention, described chemistry controlling the water circulation processes mixed bed water outlet
Water quality include: the concentration≤20 μ g/l of silicon dioxide；It is preferably 5-12 μ g/l.
Under preferable case, according to the method for cooled electric generator of the present invention, described chemistry controlling the water circulation processes mixed bed water outlet
Water quality include: ph value is >=7.0, preferably 7.0-7.5.
Under preferable case, according to the method for cooled electric generator of the present invention, the water quality of described generating set condensate
Including: electrical conductivity≤0.2 μ s/cm；It is preferably 0.08-0.11 μ s/cm.
Under preferable case, according to the method for cooled electric generator of the present invention, the water quality of described generating set condensate
Including: hardness=0 μm ol/l.
Under preferable case, according to the method for cooled electric generator of the present invention, the water quality of described generating set condensate
Including: the concentration≤20 μ g/l of silicon dioxide, preferably 2-12 μ g/l.
Under preferable case, according to the method for cooled electric generator of the present invention, the water quality of described generating set condensate
Including: ph value is 9.0-9.4.
Under preferable case, according to the method for cooled electric generator of the present invention, the water quality of described generating set condensate
Including: dissolved oxygen content≤20 μ g/l, preferably 7-15 μ g/l.
According to the method for cooled electric generator of the present invention, condense to as the described generating set supplementing adjustment water source
There is no particular limitation for the consumption of water, and those skilled in the art can be selected according to actual needs.Under preferable case, in order to
The method enabling cooled electric generator of the present invention is maintained at the water in electric generator inner cooling water system in more long period
In matter requires, the present invention makes in described electromotor preferably as the consumption of the described generating set condensate supplementing adjustment water source
The ph value of cold water is 7.0-9.0.
According to the method for cooled electric generator of the present invention, the method can also include: before generating set starts, makes
Process mixed bed water outlet with described chemistry controlling the water circulation as the basic water source of electric generator inner cooling water；After generating set starts, using institute
State generating set condensate and adjust water source as supplementing of electric generator inner cooling water, and when the ph value of described electric generator inner cooling water is
During 8.0-8.5, stop adding described generating set condensate as electric generator inner cooling water in described electric generator inner cooling water system
Supplement adjustment water source.
In the present invention, it should be noted that: before starting in generating set, processed mixed using described chemistry controlling the water circulation
Bed water outlet is as the basic water source of electric generator inner cooling water；After generating set starts, described generating set condensate conduct is used
When supplementing adjustment water source of electric generator inner cooling water, as long as enable to the ph value of described electric generator inner cooling water for 8.0-8.5, that is,
Stopping is made to add described generating set condensate to adjust as supplementing of electric generator inner cooling water in described electric generator inner cooling water system
Whole water source it is also possible to make the water quality of electric generator inner cooling water be maintained in acceptability limit, for example, electric generator inner cooling in running
In water, copper ion detection limit is less than 10 μ g/l；And electrical conductivity is 1.0-1.5 μ s/cm in electric generator inner cooling water in running,
Extenuate the corrosion to generating set for the electric generator inner cooling water described in running.Meet dl/t801-2010 standard water quality requirement.
In the present invention, to the instrument of ph value measuring described electric generator inner cooling water, there is no particular limitation, this area skill
Art personnel can be using conventional use of various instrument or method measure its ph value, such as in embodiments of the invention in the art
In, exemplarily adopt online ph table (trade mark is hgy2018) to be measured.
In the present invention, to the instrument of electrical conductivity measuring described electric generator inner cooling water, there is no particular limitation, this area
Technical staff can measure the electrical conductivity of its electric generator inner cooling water, example using conventional use of various instrument in the art or method
As in an embodiment of the present invention, exemplarily adopted online electrical conductivity table (trade mark is cent) to be measured.
According to a kind of preferred embodiment of the present invention, the method for the present invention may include that and opens in generating set
After dynamic, when the ph value of described electric generator inner cooling water is less than 7.0, processes mixed bed water outlet using chemical controlling the water circulation and generating set condenses
Water adjusts water source as supplementing of electric generator inner cooling water.In the case of this specific embodiment, to being used as electromotor
There is no particular limitation for the usage ratio of the described chemistry controlling the water circulation process mixed bed water outlet of inner cold water and generating set condensate, ability
As long as field technique personnel can process mixed bed water outlet and the usage ratio of generating set condensate by adjusting described chemistry controlling the water circulation
Make described electric generator inner cooling water ph value return to as early as possible 7.0 or above when.
According to the method for cooled electric generator of the present invention, described chemistry controlling the water circulation is controlled to process the water quality of mixed bed water outlet
Method can have multiple, and those skilled in the art can be selected according to conventional use of various methods, as long as enabling to
The water quality that described chemistry controlling the water circulation processes mixed bed water outlet meets the above-mentioned requirements of the present invention.Under preferable case, in institute of the present invention
In the method stated, described chemistry controlling the water circulation is controlled to process the water of mixed bed water outlet by the ratio adjusting the zwitterion in described mixed bed
Matter.
According to method of the present invention, in order to monitor the water quality of described electric generator inner cooling water in time, preferably per week right
Described electric generator inner cooling water is sampled chemical examination 1-5 time, monitors content of copper ion therein.The present invention is to described sample examination
There is no particular limitation for method.
According to the method for cooled electric generator of the present invention, preferably the method can also include: is starting described generating
Before machine water- cooling generator, along the water (flow) direction of described electric generator inner cooling water, using demineralized water to described electric generator inner cooling water system
System is rinsed, and the time to described flushing for the present invention, there is no particular limitation, as long as enabling to through described demineralized water
Rinsing makes the draining in described electric generator inner cooling water system limpid, and meets the conductivity indices≤2.0 μ s/ of draining
cm.In the case of more preferably, the present invention uses demineralized water to described electric generator inner cooling water system flush 15-60min.
According to the method for cooled electric generator of the present invention, preferably the method can also include: in described electromotor
After chilled water system is stopped transport, along the water (flow) direction of described electric generator inner cooling water, using demineralized water to described electric generator inner cooling water system
System rinses 15-60min.
In method of the present invention, to described demineralized water, there is no particular limitation, can make for routine in the art
Various demineralized waters, that is, utilize various water treatment technologies, removes float, colloid and inorganic cation, inorganic anion etc.
After impurities in water, obtained product water, wherein allow containing micro impurity.
Hereinafter will be described the present invention by embodiment.Generating set in following examples is Shenhua Sichuan
River oil 2 × 300mw Thermal generation unit.
Embodiment 1
Before generating set starts, chemical controlling the water circulation is added to process mixed bed water outlet in described electric generator inner cooling water system；?
After generating set starts, add generating set condensate, both water quality such as table 1 below institute in described electric generator inner cooling water system
Show.Monitor ph value and the electrical conductivity of described electric generator inner cooling water respectively using online ph table and electrical conductivity table, and, every 3 days
Described electric generator inner cooling water is sampled, to detect content of copper ion therein.In order to cost-effective, when online ph table shows
When the ph value of electric generator inner cooling water is in the range of 8.0-8.5, stop adding generating set in described electric generator inner cooling water system
Condensate；And, when the ph value that online ph table shows electric generator inner cooling water is less than 7.0, simultaneously to electric generator inner cooling water system
Described chemistry controlling the water circulation is added to process mixed bed water outlet and generating set condensate so that the ph value of described electric generator inner cooling water is extensive as early as possible
Multiple to 7.0 or more than.
Result: using said method continuous service generating set 4 months, record the water quality such as table 2 below of electric generator inner cooling water
Shown.And in the present embodiment, the situation that the ph value of electric generator inner cooling water is less than 7.0 does not occur.
Table 1
Table 2
Embodiment 2
Before generating set starts, chemical controlling the water circulation is added to process mixed bed water outlet in described electric generator inner cooling water system；?
After generating set starts, add generating set condensate, both water quality such as table 3 below institute in described electric generator inner cooling water system
Show.Monitor ph value and the electrical conductivity of described electric generator inner cooling water respectively using online ph table and electrical conductivity table, and, every 4 days
Described electric generator inner cooling water is sampled, to detect content of copper ion therein.In order to cost-effective, when online ph table shows
When the ph value of electric generator inner cooling water is in the range of 8.0-8.5, stop adding generating set in described electric generator inner cooling water system
Condensate；And, when the ph value that online ph table shows electric generator inner cooling water is less than 7.0, simultaneously to electric generator inner cooling water system
Described chemistry controlling the water circulation is added to process mixed bed water outlet and generating set condensate so that the ph value of described electric generator inner cooling water is extensive as early as possible
Multiple to 7.0 or more than.
Result: using said method continuous service generating set 4 months, record the water quality such as table 4 below of electric generator inner cooling water
Shown.And in the present embodiment, the situation that the ph value of electric generator inner cooling water is less than 7.0 does not occur.
Table 3
Table 4
Embodiment 3
Before generating set starts, chemical controlling the water circulation is added to process mixed bed water outlet in described electric generator inner cooling water system；?
After generating set starts, add generating set condensate, both water quality such as table 5 below institute in described electric generator inner cooling water system
Show.Monitor ph value and the electrical conductivity of described electric generator inner cooling water respectively using online ph table and electrical conductivity table, and, every 7 days
Described electric generator inner cooling water is sampled, to detect content of copper ion therein.In order to cost-effective, when online ph table shows
When the ph value of electric generator inner cooling water is in the range of 8.0-8.5, stop adding generating set in described electric generator inner cooling water system
Condensate；And, when the ph value that online ph table shows electric generator inner cooling water is less than 7.0, simultaneously to electric generator inner cooling water system
Described chemistry controlling the water circulation is added to process mixed bed water outlet and generating set condensate so that the ph value of described electric generator inner cooling water is extensive as early as possible
Multiple to 7.0 or more than.
Result: using said method continuous service generating set 4 months, record the water quality such as table 6 below of electric generator inner cooling water
Shown.And in the present embodiment, the situation that the ph value of electric generator inner cooling water is less than 7.0 does not occur.
Table 5
Table 6
Embodiment 4
Before generating set starts, chemical controlling the water circulation is added to process mixed bed water outlet in described electric generator inner cooling water system；?
After generating set starts, add generating set condensate, both water quality such as table 7 below institute in described electric generator inner cooling water system
Show.Monitor ph value and the electrical conductivity of described electric generator inner cooling water respectively using online ph table and electrical conductivity table, and, every 3 days
Described electric generator inner cooling water is sampled, to detect content of copper ion therein.In order to cost-effective, when online ph table shows
When the ph value of electric generator inner cooling water is in the range of 8.0-8.5, stop adding generating set in described electric generator inner cooling water system
Condensate；And, when the ph value that online ph table shows electric generator inner cooling water is less than 7.0, simultaneously to electric generator inner cooling water system
Described chemistry controlling the water circulation is added to process mixed bed water outlet and generating set condensate so that the ph value of described electric generator inner cooling water is extensive as early as possible
Multiple to 7.0 or more than.
Result: using said method continuous service generating set 4 months, record the water quality such as table 8 below of electric generator inner cooling water
Shown.And in the present embodiment, find electromotor when using said method continuous service generating set 2 months 03 days
The ph value of inner cold water is 6.8, then adds described chemistry controlling the water circulation to process mixed bed water outlet to electric generator inner cooling water system simultaneously and sends out
Group of motors condensate is so that the ph value of described electric generator inner cooling water returns to 8.2 after 2h.
Table 7
Table 8
Note: the minima of the ph value in table 8 is in addition to find the ph value of electric generator inner cooling water when 2 months 03 days
For the minima outside 6.8 bad point, and this bad point is passed through to add at described chemistry controlling the water circulation to electric generator inner cooling water system simultaneously
Reason mixed bed water outlet and generating set condensate are so that the ph value of described electric generator inner cooling water returns to 8.2 after 2h.
Comparative example 1
This comparative example adopts ion-exchange resin used in prior art to control the water quality of electric generator inner cooling water, specifically
Method is:
Before generating set starts, chemical controlling the water circulation is added to process mixed bed water outlet in described electric generator inner cooling water system, should
The water quality that chemical controlling the water circulation processes mixed bed water outlet is identical with the chemical controlling the water circulation process mixed -bed effluent quality in embodiment 1.In electromotor
After group starts, using the hybrid resin being made up of oh type ion exchange resin and H type ion exchange resin to electric generator inner cooling water
Processed so that the electric generator inner cooling water water quality after generating set starts is maintained in acceptability limit, that is, ph value is controlled to
7.0-9.0, electrical conductivity is controlled to 0.4-2 μ s/cm, and content of copper ion is not higher than 20 μ g/l, and hardness is 0 μm of ol/l.
Result: after said method continuous service generating set 3 months, record the water quality such as following table of electric generator inner cooling water
Shown in 9.After changing water, electric generator inner cooling water water quality slightly takes a turn for the better, but run time very short (1-3 days) will deteriorate so that
The water quality of described electric generator inner cooling water can not meet gb12145-2008 standard.It is judged as efficiency lost resin it is necessary to change resin.
Table 9
| Electrical conductivity (μ s/cm) | Hardness (μm ol/l) | Ph value | Content of copper ion (μ g/l) | |
| Electric generator inner cooling water | 2.3 | 0.5 | 6.8 | 36.2 |
Can be seen that using the method for the present invention, generating set is continuous from the result of above-described embodiment 1-4 and comparative example 1
Running to make the water quality of electric generator inner cooling water meet dl/t801-2010 standard for 4 months afterwards, or even enables to ph
It is worth for 8.0-8.5, electrical conductivity is not higher than 1.5 μ s/cm, content of copper ion is not higher than 10 μ g/l, and method of the present invention operation letter
Just, with low cost.Even if in addition, the feelings that the ph value accidental electric generator inner cooling water in running processing procedure is less than 7.0
It is also possible to by time and be simultaneously introduced chemical controlling the water circulation and process mixed bed water outlet and generating set condensate and make electromotor during condition
The fast quick-recovery of ph value of inner cold water is qualified.And using the method for comparative example, continuous for generating set operation is found that for 3 months afterwards
The water quality of electric generator inner cooling water can not meet gb12145-2008 standard, and must change resin.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, multiple simple variant can be carried out to technical scheme, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy no longer separately illustrates.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it equally should be considered as content disclosed in this invention.
Claims (3)
1. a kind of method of cooled electric generator, the method includes: before generating set starts, processes mixed bed using chemical controlling the water circulation and goes out
Water is as the basic water source of electric generator inner cooling water；After generating set starts, generating set condensate is used as in electromotor
Supplementing of cold water adjusts water source, and the consumption as the described generating set condensate supplementing adjustment water source makes in described electromotor
The ph value of cold water is 7.0-9.0；Wherein, the water quality that described chemistry controlling the water circulation processes mixed bed water outlet includes: electrical conductivity≤0.2 μ s/cm,
Hardness=0 μm ol/l, the concentration≤20 μ g/l of silicon dioxide, ph value is >=7.0；The water quality bag of described generating set condensate
Include: electrical conductivity≤0.2 μ s/cm, hardness=0 μm ol/l, the concentration≤20 μ g/l of silicon dioxide, ph value is 9.0-9.4, dissolved oxygen
Amount≤20 μ g/l.
2. method according to claim 1, wherein, the water quality that described chemistry controlling the water circulation processes mixed bed water outlet includes: ph value is
7.0-7.5.
3. method according to claim 1, wherein, the method includes: after generating set starts, when in described electromotor
When the ph value of cold water is less than 7.0, it is used chemical controlling the water circulation to process mixed bed water outlet and generating set condensate as electric generator inner cooling water
Supplement adjustment water source.
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