CN205480937U - 300MW and above grade coal -fired power unit's condensate water moisturizing device - Google Patents
300MW and above grade coal -fired power unit's condensate water moisturizing device Download PDFInfo
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- CN205480937U CN205480937U CN201620222155.4U CN201620222155U CN205480937U CN 205480937 U CN205480937 U CN 205480937U CN 201620222155 U CN201620222155 U CN 201620222155U CN 205480937 U CN205480937 U CN 205480937U
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- replanishing device
- water replanishing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 279
- 230000003020 moisturizing effect Effects 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title abstract 3
- 238000009833 condensation Methods 0.000 claims description 31
- 230000005494 condensation Effects 0.000 claims description 31
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 24
- 238000012806 monitoring device Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000010977 unit operation Methods 0.000 abstract description 11
- 238000011033 desalting Methods 0.000 abstract 2
- 230000001502 supplementing effect Effects 0.000 description 15
- 230000001276 controlling effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012267 brine Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a 300MW and above grade coal -fired power unit's condensate water moisturizing device, including desalting water tank, first moisturizing device, second moisturizing device, third moisturizing device and unit moisturizing device, the one end of first moisturizing device the one end of second moisturizing device reaches the one end of third moisturizing device all with the desalting water tank intercommunication, the other end of first moisturizing device the other end of second moisturizing device reaches the other end of third moisturizing device all with unit moisturizing device intercommunication, wherein, the water yield and the play water pressure of first moisturizing device all are greater than the water yield and the play water pressure of second moisturizing device. Reducible equipment investment of this 300MW and above grade coal -fired power unit's condensate water moisturizing device and civil engineering cost reduce area, have reduced the contaminated possibility of condensate water moisturizing, have improved the security of unit operation.
Description
Technical field
This utility model relates to the condensation water water supplement technology field of generating set, particularly relates to a kind of 300MW
And the condensation water water replanishing device of ratings above fired power generating unit.
Background technology
The properly functioning loss of steam and water of power plant includes the leakage at equipment and pipeline imprecision and some are inevitable
Loss of steam and water, such as blowdown, the aerofluxus of oxygen-eliminating device, steam water sampling, boiler steam blowing ash and the thermoelectricity of boiler
The heat supply etc. of coproduction unit, maintains unit properly functioning by running water charging system.
Existing condensation water water charging system condenses water subsidiary water tank by arranging one on unit, carries for power plant
For starting water-filling and running moisturizing；And connect two condensation water small pumps in subsidiary water tank outlet, at machine
Group start time in condensate system water；And main condensate water system is provided with the regulation of condenser highstand shedding
Device, when high water level occurs in condenser hotwell, condenses water and can return to solidifying water supply tank.Existing technology is deposited
In following shortcoming: condense water small pump the most on the shelf, waste resource；Pump selection is unreasonable, flow
And lift is excessive, cost of idleness；Overflow pipe for a long time need not, cause pipeline rust, in some instances it may even be possible to overflow water returns
Stream pollutes the water quality of whole solidifying water supply tank；Generator electronic cooling water copper ion easily exceeds standard, and causes electromotor line
The accidents such as rod punctures, affect unit safety.
Summary of the invention
Based on this, it is necessary to provide the condensation water water replanishing device of a kind of 300MW and ratings above fired power generating unit,
Reduce equipment investment and civil engineering cost, reduce floor space, reduce the condensation contaminated probability of water moisturizing,
Improve the safety of unit operation.
Its technical scheme is as follows:
A kind of condensation water water replanishing device of 300MW and ratings above fired power generating unit, including sweet-water tank, first
Water replanishing device, the second water replanishing device, the 3rd water replanishing device, unit water replanishing device and control device, described the
One end of one end of one water replanishing device, one end of described second water replanishing device and described 3rd water replanishing device all with
Described sweet-water tank connects, the other end of described first water replanishing device, the other end of described second water replanishing device
And the other end of described 3rd water replanishing device all connects with described unit water replanishing device, described control device is used for
Control being turned on and off of the first water replanishing device, the second water replanishing device and the 3rd water replanishing device；Wherein, first
The water yield of water replanishing device and discharge pressure are all higher than water yield and the discharge pressure of described second water replanishing device.
Wherein in an embodiment, described first water replanishing device include the first small pump, the first filter screen,
One isolating valve and the first check-valves, described first small pump is removed with described by the first filter screen and the first isolating valve
Brine tank is connected, and described first small pump is connected with described unit water replanishing device by the first check-valves.
Wherein in an embodiment, the water yield of the described first small pump pot more than or equal to 8 percent
Stove maximum continuous evaporation amount.
Wherein in an embodiment, described second water replanishing device include the second small pump, the second filter screen,
Two isolating valves and the second check-valves, described second small pump is removed with described by the second filter screen and the second isolating valve
Brine tank is connected, and described second small pump is connected with described unit water replanishing device by the second check-valves.
Wherein in an embodiment, the water yield of the described second small pump pot more than or equal to 2 percent
Stove maximum continuous evaporation amount.
Wherein in an embodiment, described 3rd water replanishing device includes the 3rd check-valves and the 3rd isolating valve,
The water inlet end of described 3rd check-valves connects with described sweet-water tank, the water side of described 3rd check-valves and institute
Stating the water inlet end connection of the 3rd isolating valve, the water side of described 3rd isolating valve is with described unit water replanishing device even
Logical.
Wherein in an embodiment, described sweet-water tank is additionally provided with the 4th isolating valve, described 4th isolating valve
One end connect with described sweet-water tank, the other end of described 4th isolating valve respectively with the first water replanishing device,
Second water replanishing device and the connection of the 3rd water replanishing device.
Wherein in an embodiment, described sweet-water tank is additionally provided with water inlet, described water inlet and demineralized water
Water generator connects.
Wherein in an embodiment, also including controlling device and monitoring device, described control device is used for controlling
Making being turned on and off of the first water replanishing device, the second water replanishing device and the 3rd water replanishing device, institute's monitoring device is used
In monitoring unit moisturizing demand in real time, described monitoring device electrically connects with controlling device.
Wherein in an embodiment, described unit water replanishing device include condenser hotwell, condensate system and
Oxygen-eliminating device, the hot well of described condenser, condensate system and oxygen-eliminating device respectively with described first water replanishing device,
Described second water replanishing device and the connection of the 3rd water replanishing device.
" first " described in above-mentioned this utility model, " second ", " the 3rd ", " the 4th " do not represent concrete
Quantity and order, be only used for the differentiation of title.
Above-mentioned the beneficial effects of the utility model:
The condensation water water replanishing device of above-mentioned 300MW and ratings above fired power generating unit, according to the not same order of unit
The moisturizing conditions of demand of section, arrange the first water replanishing device, the second water replanishing device, the 3rd water replanishing device, simultaneously
Feature in conjunction with unit operation selects the first water replanishing device, the second water replanishing device and the 3rd water replanishing device, root
According to unit operation practical situation, utilize control device automatically control the first water replanishing device, the second water replanishing device and
Being turned on and off of 3rd water replanishing device, makes full use of device resource, saves equipment investment cost.In reality
In application process, the condensation water water replanishing device of this 300MW and ratings above fired power generating unit can reduce equipment investment
And civil engineering cost, reduce floor space, reduce the condensation contaminated probability of water moisturizing, improve unit
The safety run.
Accompanying drawing explanation
Fig. 1 is that the condensation water water replanishing device of 300MW described in the utility model and ratings above fired power generating unit shows
It is intended to.
Description of reference numerals:
100, sweet-water tank, 110, sweet-water tank, the 120, the 4th isolating valve, the 200, first water replanishing device,
210, the first small pump, the 220, first filter screen, the 230, first isolating valve, the 240, first check-valves, 300,
Second water replanishing device, the 310, second small pump, the 320, second filter screen, the 330, second isolating valve, 340,
Second check-valves, the 400, the 3rd water replanishing device, the 410, the 3rd check-valves, the 420, the 3rd isolating valve, 500,
Unit water replanishing device, 510, condenser hotwell, 520, condensate system, 530, oxygen-eliminating device.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Detailed description of the invention, is described in further detail this utility model.It should be appreciated that this place
The detailed description of the invention described, only in order to explain this utility model, does not limit protection domain of the present utility model.
From shown in Fig. 1, a kind of 300MW described in the utility model and the condensation water of ratings above fired power generating unit
Water replanishing device, including sweet-water tank the 100, first water replanishing device the 200, second water replanishing device the 300, the 3rd benefit
Water device 400, unit water replanishing device 500 and control device (not shown), the one of the first water replanishing device 200
One end of end, the second water replanishing device 300 and the 3rd water replanishing device 400 all connects with sweet-water tank 100, the
The other end of one water replanishing device 200, the other end of the second water replanishing device 300 and the 3rd water replanishing device 400
The other end all connects with unit water replanishing device 500, controls device for controlling the first water replanishing device 200, second
Being turned on and off of water replanishing device 300 and the 3rd water replanishing device 400；Wherein, first water replanishing device 200
Water yield and discharge pressure are all higher than water yield and the discharge pressure of the second water replanishing device 300.
The condensation water water replanishing device of 300MW and ratings above fired power generating unit, according to the benefit of the different phase of unit
Water conditions of demand, arrange first water replanishing device the 200, second water replanishing device the 300, the 3rd water replanishing device 400,
Feature in combination with unit operation selects the first water replanishing device the 200, second water replanishing device 300 and the 3rd benefit
Water device 400, according to unit operation practical situation, utilize control device automatically control the first water replanishing device 200,
Being turned on and off of second water replanishing device 300 and the 3rd water replanishing device 400；A moisturizing dress is utilized before starting
Put 200 and carry out moisturizing flushing；Rinse qualified after, close the first water replanishing device 200, initial start stage, utilize
Two water replanishing devices 300 carry out moisturizing；Time properly functioning, utilize three water replanishing device 400 or the second water replanishing devices
300 carry out moisturizing, make full use of device resource, save equipment investment cost.In actual application, should
The condensation water water replanishing device of 300MW and ratings above fired power generating unit can reduce equipment investment and civil engineering cost, subtracts
Few floor space, reduces the condensation contaminated probability of water moisturizing, improves the safety of unit operation.
First water replanishing device 200 include first small pump the 210, first filter screen the 220, first isolating valve 230 and
First check-valves 240, the first small pump 210 is by the first filter screen 220 and the first isolating valve 230 and demineralized water
Case 100 is connected, and the first small pump 210 is connected with unit water replanishing device 500 by the first check-valves 240
Logical；Second water replanishing device 300 include second small pump the 310, second filter screen the 320, second isolating valve 330 and
Second check-valves 340, the second small pump 310 is by the second filter screen 320 and the second isolating valve 330 and demineralized water
Case 100 is connected, and the second small pump 310 is connected with unit water replanishing device 500 by the second check-valves 340
Logical.It is thus achieved that the stable adjustability of the moisturizing of unit, it is possible to prevent the water of condenser hotwell 510 from refluxing,
Waste moisturizing resource.Due to conventional power plant rate of water make-up and design parameter under unit starting and accidental conditions
Difference is relatively big, is therefore respectively provided with the first small pump 210 and the second small pump 310.Due to the first small pump
210 only use when unit starting, and utilization rate is low, the most preferably uses constant speed regulative mode.For reducing investment outlay,
2 units preferably share a set of first small pump 210.Second small pump 310 is with 2 normal refill flow of unit
Sum is as pump type selecting basis, and 2 units arrange the small pump of 2 100% normal refill flow altogether, uses
Variable frequency regulating speed control mode.
The water yield of the first small pump 210 boiler maximum continuous rating more than or equal to 8 percent, with
Meet unit cold conditions and clean the requirement of flow；Under special circumstances, boiler thermal-state rinse stage major part working medium
May not reclaim, now rate of water make-up is up to the rate of water make-up of minimum steady combustion load, going out of the first small pump 210
The water yield is the boiler maximum continuous rating of 25%～30%.The water yield of the second small pump 310 is more than or equal to
The boiler maximum continuous rating of 2 percent, to meet the properly functioning needs of unit, because power plant normally transports
The loss of steam and water of row includes the leakage at equipment and pipeline imprecision and some inevitable loss of steam and water, as
The blowdown of boiler, the aerofluxus of oxygen-eliminating device 530, steam water sampling, boiler steam blowing ash and cogeneration units
Heat supply etc..As a example by 2x600MW supercritical routine fired power generating unit, available 1 600t/h the first moisturizing
Pump 210 (D, lift 60m) provides water yield and discharge pressure；Available 2 70t/h the second small pumps
310 (E1/E2, lift 45m) provides water yield and discharge pressure.
Sweet-water tank is additionally provided with the 4th isolating valve 120, and one end of the 4th isolating valve 120 is with described sweet-water tank even
Logical, the other end of the 4th isolating valve respectively with the first water replanishing device, the second water replanishing device and the 3rd water replanishing device
Connection.By arranging the 4th isolating valve 120, it is simple to water yield adjusting.
3rd water replanishing device 400 includes the 3rd check-valves 410 and the 3rd isolating valve 420, the 3rd check-valves 410
Water inlet end connect with sweet-water tank 100, the water side of the 3rd check-valves 410 and the 3rd isolating valve 420
Water inlet end connects, and the water side of the 3rd isolating valve 420 connects with unit water replanishing device 500.When unit is normal
After operation, close the first water replanishing device 200 and the second water replanishing device 300, open the 3rd isolating valve 420, profit
With the pressure reduction gravity flow moisturizing between sweet-water tank 100 and condenser hotwell 510, operating cost can be reduced, fall
Low equipment investment cost.3rd check-valves 410 can prevent the water of condenser hotwell 510 from refluxing, and waste is mended
Water resource.
The condensation water water replanishing device of 300MW and ratings above fired power generating unit also includes and monitoring device (is not shown
Go out), institute's monitoring device is for monitoring unit moisturizing demand in real time, and described monitoring device is electrically connected with controlling device
Connect.Monitored unit moisturizing conditions of demand by monitoring device in real time, and be sent to this demand information control dress
Put, control device information according to demand and be automatically adjusted the rate of water make-up of water replanishing device, it is ensured that unit operation reliable
Property.
Unit water replanishing device 500 includes condenser hotwell 510, condensate system 520 and oxygen-eliminating device 530, solidifying
The hot well of vapour device, condensate system 520 and oxygen-eliminating device 530 are mended with the first water replanishing device 200, second respectively
Water device 300 and the 3rd water replanishing device 400 connect.It is thus achieved that condenser hotwell 510, condensate system
520 and oxygen-eliminating device 530 moisturizing regulation, it is simple to control, it is ensured that unit operation is normal, can Parallel Control also can go here and there
Joint control system.
It should be noted that the first rate of water make-up and the second rate of water make-up each mean the size of the water yield of water pump, as
First rate of water make-up is 600t/h；First supplementing water pressure and the second supplementing water pressure each mean water pump lift size, as
First supplementing water pressure is 60m lift.Boiler maximum continuous rating is called for short BMCR, is the outlet in regulation
Pressure, at a temperature of, can maximum quantity-produced quantity of steam in the unit interval.
Apply this 300MW and ratings above fired power generating unit a kind of 300MW condensing water water replanishing device and with
The condensation water method for supplementing water of upper grade fired power generating unit, comprises the steps:
Before unit starting, with the first rate of water make-up and the first supplementing water pressure to condenser hotwell moisturizing, arrive first
After preset water level, rinse condensate system and oxygen-eliminating device；
Clean qualified after, normal to unit to condenser hotwell moisturizing with the second rate of water make-up and the second supplementing water pressure
Running, wherein, the second rate of water make-up is less than the first rate of water make-up, and the second supplementing water pressure is less than the first supplementing water pressure；
When unit is properly functioning, the water-head between sweet-water tank and condenser hotwell and hydraulic pressure difference is utilized to carry out
Condenser hotwell gravity flow moisturizing.
The condensation water method for supplementing water of 300MW and ratings above fired power generating unit, utilizes the moisturizing before unit starting to need
Ask different from moisturizing demand during unit starting, by with the first rate of water make-up and the first supplementing water pressure to condensing
Device hot well moisturizing, and carry out condensate system and oxygen-eliminating device cleaning；Again with the second rate of water make-up and the second moisturizing pressure
Power is properly functioning to unit to condenser hotwell moisturizing；Finally utilize between sweet-water tank and condenser hotwell
Hydraulic pressure difference carries out condenser hotwell moisturizing to meet the properly functioning needs of unit, makes full use of unit operation feature,
Save operating cost.The condensation water method for supplementing water of 300MW of the present utility model and ratings above fired power generating unit
Equipment investment and civil engineering cost can be reduced, reduce floor space, reduce the condensation contaminated possibility of water moisturizing
Property, improve the safety of unit operation.
Between sweet-water tank and condenser hotwell preset hydraulic pressure difference more than sweet-water tank to condenser hotwell it
Between the resistance of ducting, it is ensured that formed pressure reduction gravity flow moisturizing.The water level of this sweet-water tank maintains the height of 12-14m
Position, additionally the resistance of ducting compresses little, utilizes the pressure reduction gravity flow moisturizing between sweet-water tank and condenser hotwell,
Operating cost can be reduced, reduce equipment investment cost.
Nourish water when the water-head utilized between sweet-water tank and condenser hotwell and hydraulic pressure difference carry out condenser heat
Cannot meet unit properly functioning time, with the second rate of water make-up and the second supplementing water pressure to condenser hotwell moisturizing,
To ensure the properly functioning of this unit, give sweet-water tank moisturizing the most in time, improve its water level, recover pressure reduction
Gravity flow moisturizing.
In flushing process, also include being filled with water to the first rate of water make-up and the first supplementing water pressure to deaerator storage tank
Two preset water level, then boiler is carried out cold conditions flushing, it is to avoid boiler corrodes at running.Boiler pair
Water quality requirement is relatively stricter, in order to prevent boiler heating surface internal corrosion and overtemperature of tube wall, before unit starting
Reply boiler is carried out, and rinses the iron ion content < 200mg/L to water.
First rate of water make-up boiler maximum continuous rating more than or equal to 8 percent, to meet unit cold conditions
Clean the requirement of flow；Under special circumstances, boiler thermal-state rinse stage major part working medium may not reclaim,
Now rate of water make-up is up to the rate of water make-up of minimum steady combustion load, and the first rate of water make-up is the boiler maximum of 25%～30%
Continuous evaporation amount.Second rate of water make-up boiler maximum continuous rating more than or equal to 2 percent, to meet
The properly functioning needs of unit, because the properly functioning loss of steam and water of power plant includes at equipment and pipeline imprecision
Leakage and some inevitable loss of steam and water, such as the blowdown of boiler, the aerofluxus of oxygen-eliminating device, steam water sampling, pot
Stove steam soot blowing and the heat supply etc. of cogeneration units.With 2x600MW supercritical routine fired power generating unit it is
Example, available 1 600t/h starts small pump (lift 60m) provides the first rate of water make-up and the first supplementing water pressure；
Available 2 70t/h run small pump (lift 45m) and provide the second rate of water make-up and the second supplementing water pressure.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (10)
1. the condensation water water replanishing device of a 300MW and ratings above fired power generating unit, it is characterised in that bag
Include sweet-water tank, the first water replanishing device, the second water replanishing device, the 3rd water replanishing device, unit water replanishing device and
Controlling device, one end of described first water replanishing device, one end of described second water replanishing device and the described 3rd mend
One end of water device all connects with described sweet-water tank, the other end of described first water replanishing device, described second
The other end of water replanishing device and the other end of described 3rd water replanishing device all connect with described unit water replanishing device,
Described control device for control the first water replanishing device, the second water replanishing device and the unlatching of the 3rd water replanishing device or
Close；Wherein, water yield and the discharge pressure of the first water replanishing device is all higher than going out of described second water replanishing device
The water yield and discharge pressure.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, described first water replanishing device includes the first small pump, the first filter screen, the first isolating valve and
One check-valves, described first small pump is connected with described sweet-water tank by the first filter screen and the first isolating valve,
Described first small pump is connected with described unit water replanishing device by the first check-valves.
The condensation water water replanishing device of 300MW the most according to claim 2 and ratings above fired power generating unit,
It is characterized in that, the water yield of the described first small pump boiler maximum continuous steaming more than or equal to 8 percent
Send out amount.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, described second water replanishing device includes the second small pump, the second filter screen, the second isolating valve and
Two check-valves, described second small pump is connected with described sweet-water tank by the second filter screen and the second isolating valve,
Described second small pump is connected with described unit water replanishing device by the second check-valves.
The condensation water water replanishing device of 300MW the most according to claim 4 and ratings above fired power generating unit,
It is characterized in that, the water yield of the described second small pump boiler maximum continuous steaming more than or equal to 2 percent
Send out amount.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, described 3rd water replanishing device includes the 3rd check-valves and the 3rd isolating valve, described 3rd non-return
The water inlet end of valve connects with described sweet-water tank, the water side of described 3rd check-valves and described 3rd isolating valve
Water inlet end connection, the water side of described 3rd isolating valve connects with described unit water replanishing device.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, described sweet-water tank is additionally provided with the 4th isolating valve, and one end of described 4th isolating valve is with described
Sweet-water tank connect, the other end of described 4th isolating valve respectively with the first water replanishing device, the second water replanishing device
And the 3rd water replanishing device connection.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, described sweet-water tank is additionally provided with water inlet, and described water inlet connects with demineralized water water generator.
The condensation water water replanishing device of 300MW the most according to claim 1 and ratings above fired power generating unit,
It is characterized in that, also include monitoring device, institute's monitoring device is for monitoring unit moisturizing demand, institute in real time
State monitoring device and electrically connect with controlling device.
10. according to the 300MW described in any one of claim 1-9 and the condensation water of ratings above fired power generating unit
Water replanishing device, it is characterised in that described unit water replanishing device includes condenser hotwell, condensate system and removes
Oxygen device, the hot well of described condenser, condensate system and oxygen-eliminating device respectively with described first water replanishing device,
Described second water replanishing device and the connection of the 3rd water replanishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222155.4U CN205480937U (en) | 2016-03-21 | 2016-03-21 | 300MW and above grade coal -fired power unit's condensate water moisturizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222155.4U CN205480937U (en) | 2016-03-21 | 2016-03-21 | 300MW and above grade coal -fired power unit's condensate water moisturizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205480937U true CN205480937U (en) | 2016-08-17 |
Family
ID=56651477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620222155.4U Expired - Fee Related CN205480937U (en) | 2016-03-21 | 2016-03-21 | 300MW and above grade coal -fired power unit's condensate water moisturizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205480937U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842843A (en) * | 2017-12-06 | 2018-03-27 | 中国大唐集团科学技术研究院有限公司华东分公司 | Supercritical unit voltage stabilizing steam-line blowing method for supplementing water and water charging system |
| CN109405052A (en) * | 2018-12-12 | 2019-03-01 | 沧州华润热电有限公司 | A kind of Make-up Water for Heating System |
| CN111156497A (en) * | 2020-01-02 | 2020-05-15 | 神华神东电力有限责任公司 | Steam turbine unit system and control method thereof |
-
2016
- 2016-03-21 CN CN201620222155.4U patent/CN205480937U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842843A (en) * | 2017-12-06 | 2018-03-27 | 中国大唐集团科学技术研究院有限公司华东分公司 | Supercritical unit voltage stabilizing steam-line blowing method for supplementing water and water charging system |
| CN109405052A (en) * | 2018-12-12 | 2019-03-01 | 沧州华润热电有限公司 | A kind of Make-up Water for Heating System |
| CN111156497A (en) * | 2020-01-02 | 2020-05-15 | 神华神东电力有限责任公司 | Steam turbine unit system and control method thereof |
| CN111156497B (en) * | 2020-01-02 | 2021-11-26 | 神华神东电力有限责任公司 | Steam turbine unit system and control method thereof |
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