CN206158945U - Circulating water pump optimal operation of power plant device - Google Patents
Circulating water pump optimal operation of power plant device Download PDFInfo
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- CN206158945U CN206158945U CN201621095878.9U CN201621095878U CN206158945U CN 206158945 U CN206158945 U CN 206158945U CN 201621095878 U CN201621095878 U CN 201621095878U CN 206158945 U CN206158945 U CN 206158945U
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Abstract
The utility model discloses a circulating water pump optimal operation of power plant device, relate to the power generating equipment cooling technique field, the device includes two circulating waters female pipe of intaking, a plurality of branch pipes, the valve, the contact valve, two cooling unit, four circulating water pump and parallelly connected miniwatt circulating water pump, through increasing a parallelly connected circulating water water inlet branch pipe between original two circulating water pump, set up two valves and miniwatt circulating water pump, female pipe of intaking increases a contact valve, combine actual operation working condition, suitably open single pump according to every unit actual load, single pump + little pump, the method of operation of double pump, cooling power power is not enough when effectively having solved the operation of the present circulating water system of power plant separate unit circulating water pump, the allowance was great when two circulating water pump moved simultaneously, power consumption is higher when opening the shut down, the operation, adjust more complicated scheduling problem, optimal operation has been realized, the nimble mesh of adjusting.
Description
Technical field
This utility model is related to generating equipment cooling technology field, more particularly to a kind of power plant cycle water pump optimization operation dress
Put.
Background technology
Steam turbine exhaust pressure is the key factor for affecting unit economy, and the exhaust steam pressure of steam turbine is born by unit
Lotus, circulating water temperature and circulating water flow determine, enter in recirculated water, the condition such as return water temperature it is constant in the case of, recirculated water
Flow directly determines unit exhaust steam pressure, is operating important monitored parameter, and water circulating pump is that consumption rate is most in subsidiary engine equipment
One of big equipment, is also to affect one of most important index of station service power consumption rate, therefore it is power plant that operation is optimized to water circulating pump
Reduce the effective measures of coa consumption rate.
Water circulating pump develops into double speed pump from constant speed pump at present, then to variable frequency pump, its basic goal is to carry for condenser
For optimum circulating water flow, to ensure that condenser is operated under optimum vacuum, so as to reach the purpose of energy-conservation to greatest extent.It is double
Fast pump is that the motor to water circulating pump has carried out double speed transformation so as to can be run under high and low two kinds of rotating speeds, so as to enrich
The method of operation of water circulating pump, but it is higher with the dumb problem of operation that power is yet suffered from during its low cruise.And water circulating pump
Carry out Frequency Conversion Modification relatively costly.During unit starting, need to first start separate unit water circulating pump, consumption rate can be caused higher, produce energy
Source wastes, and two water circulating pumps are often opened in unit operation, and cooling allowance now is larger, and power consumption rate of circula is higher,
Degree of supercooling is caused to become big, separate unit water circulating pump can not meet unit steam discharge and cool down the problems such as requiring, heat transfer effect, station-service when running
Electric rate is all not reaching to optimum level.
In view of above-mentioned defect, the positive in addition research and innovation of the design people is excellent to founding a kind of power plant cycle water pump
Change running gear so as to more the value in industry.
Utility model content
To solve above-mentioned technical problem, this utility model provides a kind of power plant cycle water pump optimized operating device, can be flexible
Quantity of circulating water is adjusted, it is higher to solve power when current electric power plant circulating water pumps up machine, the larger problem of energy consumption.
What the purpose of this utility model was realized in：
A kind of power plant cycle water pump optimized operating device, including two units and two recirculated waters water inlet main pipes, described two
Four water inlet pipes are parallel between root recirculated water water inlet main pipe, water circulating pump, two units are designed with every water inlet pipe
Recirculated water be collected to into water main pipe after the boosting of respective water circulating pump, first circulation water water inlet main pipe is provided with communication valve
Door, in the two recirculated water water inlet main pipe Article 5 water inlet pipe is also parallel with, and Article 5 water inlet pipe is provided with small-power
Water circulating pump, the outlet of the small-power water circulating pump connects further through the branched pipe of two parallel connections with first circulation water water inlet main pipe
It is logical, it is respectively equipped with the first valve and the second valve on two branched pipes；During work, according to the reality of adjacent two units
Load, by adjusting first valve, the second valve and contact valve the recirculated water inflow of two units is controlled.
Further, power of the power of small-power water circulating pump less than remaining four water circulating pump.
Further, the power of small-power water circulating pump is the 1/10～1/2 of normal circulation pump power.
Further, small-power water circulating pump is installed in parallel with two units, is that two units are shared.
Further, small-power water circulating pump is applied in Unit Commitment.
Further, small-power water circulating pump is applied in unit underload.
Further, small-power water circulating pump is applied when unit ambient temperature is relatively low.
Further, two branched pipe outlets are located at respectively at the upstream and downstream of contact valve.
Further, respectively first circulation water pump, second circulation water pump, the 3rd follow the water circulating pump on four articles of water inlet pipes
Ring water pump and the 4th water circulating pump.
Further, valve is equipped with four water inlet pipes, respectively at the downstream of water circulating pump.
By such scheme, the present invention at least has advantages below：
This utility model is related to electric power plant circulating water system circulation Optimal Design of Water pump, running gear, and the device includes two
Water inlet main pipe, valve, contact valve and four water circulating pumps and small-power water circulating pump in parallel with two units.Pass through
Increase the circulating water inlet of a parallel connection between two water circulating pumps of reason, two valves and small-power water circulating pump be set,
Increase a contact valve in first water inlet main pipe, by the operational factor that optimization operation test is given, with reference to actual operating mode,
Single pump, single pump+little pump are suitably opened by every unit actual load, the method for operation of double pump, this utility model is efficiently solved
Cooling capacity is not enough when at present power plant cycle water system separate unit water circulating pump runs, two water circulating pumps run simultaneously when allowance compared with
Greatly, consumption rate is higher during start and stop, run, adjust more complicated problem, and the recirculated water of entrance can to greatest extent realize section
The effect that can, economize on water, and can be according to the actual load flexible of adjacent two units.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand the technology handss of the present invention
Section, and can be practiced according to the content of description, with presently preferred embodiments of the present invention and coordinate accompanying drawing to describe in detail such as below
Afterwards.
Description of the drawings
Fig. 1 is the structural representation of this utility model power plant cycle water pump optimized operating device.
In figure：1st, the first valve, the 2, second valve, 3, contact valve, 4, first circulation water water inlet main pipe, 5, second circulation
Water is intake main pipe, and 6, first circulation water pump, 7, second circulation water pump, 8, small-power water circulating pump, the 9, the 3rd water circulating pump, 10,
4th water circulating pump, the 11, first condenser, the 12, second condenser, the 13, first cooling tower, the 14, second cooling tower, 15, first
Backwater main pipe, the 16, second backwater main pipe, the 17, first cooling low pressure (LP) cylinder, the 18, second cooling low pressure (LP) cylinder.
Specific embodiment
As shown in figure 1, this utility model power plant cycle water pump optimized operating device, including the first cooling tower 13, second is cold
But tower 14, first circulation water water inlet main pipe 4, second circulation water water inlet main pipe 5, first circulation water pump 6, second circulation water pump 7, little
Power cycle water pump 8, the 3rd water circulating pump 9, the 4th water circulating pump 10, valve, contact valve 3, the first condenser 11, second coagulate
Vapour device 12, low pressure (LP) cylinder, the first backwater main pipe 15, the second backwater main pipe 16, first circulation water water inlet main pipe 4 is entered with second circulation water
Five arms in parallel between Jellyfish pipe 5, first circulation water pump 6, second circulation water pump 7, small-power water circulating pump the 8, the 3rd are followed
Ring water pump 9, the 4th water circulating pump 10 are respectively placed on five arms；First circulation water pump 6, second circulation water pump the 7, the 3rd are circulated
Water pump 9, the water outlet of the 4th water circulating pump 10 are designed with valve；The water outlet of small-power water circulating pump 8 is provided with two parallel connections
Arm is connected respectively with first circulation water water inlet main pipe 4, and the first valve 1 and the second valve 2 are respectively equipped with two arms；Contact
Valve 3 is placed on the middle pipeline section that two arms are connected with the first water inlet main pipe 4；Recirculated water passes through each water circulating pump liter
Pressure, into the first water inlet main pipe 4, by adjusting first valve 1, the second valve 2 and contact valve 3 the first cooling tower is controlled
13 and second cooling tower 14 recirculated water inflow.
The power of the small-power water circulating pump 8 of power plant cycle water pump optimized operating device is about normal circulation pump power
1/10～1/2, small-power water circulating pump (8) is in Unit Commitment, unit underload when, unit ambient temperature applies when relatively low.
The recirculated water backwater of two units is followed after each cooling tower cooler by respective first circulation water pump 6, second
The second water inlet main pipe is collected to after ring water pump 7, small-power water circulating pump 8, the boosting of the 3rd water circulating pump 9, the 4th water circulating pump 10
5, in then separately flowing into arm in parallel, the first water inlet main pipe is entered into by the water circulating pump and valve on each arm
In, contact valve is provided with the first water inlet main pipe, not open under normal operation, subsequently enter respective condenser, first
The cooling cooling steam discharge of low pressure (LP) cylinder 18 of low pressure (LP) cylinder 17 and second, the recirculated water of cooling is female by the first backwater main pipe 15 and the second backwater
Pipe returns to respective cooling tower, during unit starting, need to first start separate unit water circulating pump, if run the constant speed water circulating pump, can
Cause consumption rate higher, produce energy waste, two water circulating pumps are often opened in actual motion, cooling allowance now compared with
Greatly, water circulating pump power consumption is higher, causes degree of supercooling to become big, and separate unit water circulating pump can not meet the cooling of unit steam discharge when running will
The problems such as asking, now takes the method for operation of single pump+small-power pump, is divided into two at the water out of small-power water circulating pump 8 again
Pipe, is respectively provided with the first valve 1 and the second valve 2 on two arms, the He of the first valve 1 is opened in the boosting that recirculated water passes through pump
Second valve 2 enters into first circulation water water inlet main pipe 4, then by getting in touch with the regulation of valve 3, two unit cooling towers of control
Circulation inflow, realizes optimization operation, optimizing regulation, so can suitably open single pump, single pump+small-power with reference to actual load
The method of operation of pump, double pump.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it should be pointed out that for this skill
For the those of ordinary skill in art field, some improvement and change can be made on the premise of without departing from the technology of the present invention principle
Type, these are improved and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of power plant cycle water pump optimized operating device, including two units and two recirculated waters water inlet main pipes, described two
Four water inlet pipes are parallel between recirculated water water inlet main pipe, water circulating pump is designed with every water inlet pipe, two units
Recirculated water is collected to into water main pipe after the boosting of respective water circulating pump, and first circulation water water inlet main pipe (4) is provided with contact
Valve (3), it is characterised in that：Article 5 water inlet pipe, Article 5 water inlet are also parallel with the two recirculated water water inlet main pipe
Arm is provided with small-power water circulating pump (8), the outlet of the small-power water circulating pump (8) further through two parallel connections branched pipe
Connect with first circulation water water inlet main pipe (4), on two branched pipes the first valve (1) and the second valve are respectively equipped with
(2)；During work, according to the actual load of adjacent two units, by adjusting first valve (1), the second valve (2) and connection
Network valve (3) is controlling the recirculated water inflow of two units.
2. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
Power of the power of pump (8) less than remaining four water circulating pump.
3. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
The power of pump (8) is the 1/10～1/2 of normal circulation pump power.
4. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
Pump (8) is installed in parallel with two units, is that two units are shared.
5. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
Pump (8) is applied in Unit Commitment.
6. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
Pump (8) is applied in unit underload.
7. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：The small-power recirculated water
Pump (8) is applied when unit ambient temperature is relatively low.
8. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：Two branched pipe outlets point
Wei Yu not get in touch with the upstream and downstream of valve (3).
9. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：On four water inlet pipes
Water circulating pump difference first circulation water pump (6), second circulation water pump (7), the 3rd water circulating pump (9) and the 4th water circulating pump
(10)。
10. power plant cycle water pump optimized operating device according to claim 1, it is characterised in that：On four water inlet pipes
Valve is equipped with, respectively at the downstream of water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095878.9U CN206158945U (en) | 2016-09-29 | 2016-09-29 | Circulating water pump optimal operation of power plant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095878.9U CN206158945U (en) | 2016-09-29 | 2016-09-29 | Circulating water pump optimal operation of power plant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158945U true CN206158945U (en) | 2017-05-10 |
Family
ID=58652444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621095878.9U Expired - Fee Related CN206158945U (en) | 2016-09-29 | 2016-09-29 | Circulating water pump optimal operation of power plant device |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519001A (en) * | 2018-03-19 | 2018-09-11 | 华能国际电力股份有限公司福州电厂 | A kind of power plant's open circulating water contact common header system and its control method |
| CN108716232A (en) * | 2018-06-29 | 2018-10-30 | 神华国华广投（柳州）发电有限责任公司 | A kind of circulating water supply system |
| CN110671692A (en) * | 2019-09-12 | 2020-01-10 | 中国石油化工股份有限公司 | System and process for efficiency improvement and energy saving of thermoelectric desalting water pump |
| CN111637761A (en) * | 2020-05-19 | 2020-09-08 | 浙江浙能绍兴滨海热电有限责任公司 | Circulating water control system and operation adjusting method thereof |
| CN112665309A (en) * | 2020-12-16 | 2021-04-16 | 华能国际电力股份有限公司上海石洞口第一电厂 | Energy-saving circulating water system for power plant |
-
2016
- 2016-09-29 CN CN201621095878.9U patent/CN206158945U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519001A (en) * | 2018-03-19 | 2018-09-11 | 华能国际电力股份有限公司福州电厂 | A kind of power plant's open circulating water contact common header system and its control method |
| CN108716232A (en) * | 2018-06-29 | 2018-10-30 | 神华国华广投（柳州）发电有限责任公司 | A kind of circulating water supply system |
| CN110671692A (en) * | 2019-09-12 | 2020-01-10 | 中国石油化工股份有限公司 | System and process for efficiency improvement and energy saving of thermoelectric desalting water pump |
| CN111637761A (en) * | 2020-05-19 | 2020-09-08 | 浙江浙能绍兴滨海热电有限责任公司 | Circulating water control system and operation adjusting method thereof |
| CN112665309A (en) * | 2020-12-16 | 2021-04-16 | 华能国际电力股份有限公司上海石洞口第一电厂 | Energy-saving circulating water system for power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20170929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |