CN203159272U - Deaerator water supply device for unit in power plant - Google Patents
Deaerator water supply device for unit in power plant Download PDFInfo
- Publication number
- CN203159272U CN203159272U CN 201320204441 CN201320204441U CN203159272U CN 203159272 U CN203159272 U CN 203159272U CN 201320204441 CN201320204441 CN 201320204441 CN 201320204441 U CN201320204441 U CN 201320204441U CN 203159272 U CN203159272 U CN 203159272U
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- water
- valve
- pump
- deaerator
- unit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000008400 supply water Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model relates to a deaerator water supply device for a unit in a power plant in the field of thermal power generation. The utility model adopts the technical scheme that the deaerator water supply device for the unit in the power plant comprises a condenser, a water condensating and supplementing tank and a deaerator and is characterized in that the condenser is sequentially connected with a condensate pump, a condensate pump valve and a branch valve to a deaerator water supply pipe through pipelines; a front pump sealed water pipeline is separated out of the pipeline between the condensate pump valve and the branch valve; the water condensating and supplementing tank is sequentially connected with a heat supply desuperheating water booster pump, a booster pump valve and a main valve to the deaerator water supply pipe through pipelines; a heat supply water pipeline is separated out of the pipeline between the booster pump valve and the main valve; and a water inlet valve is arranged on the deaerator water supply pipe. The deaerator water supply device for the unit in the power plant has the beneficial effects that existing equipment and system are utilized to optimize a starting manner; the heat supply desuperheating water booster pump with lower power and rated flow replaces the condensate pump with high power and flow to supply water to the deaerator; energy loss caused by the case that the condensate pump operates under a low load in the start-up initial stage of the unit can be avoided; and consumption and waste of electric energy when the unit is started are reduced.
Description
Technical field
The utility model relates to the Power Plant deoxygenator water-supply apparatus in the thermal power generation field.
Background technology
Water generally adopts condensate pump on the existing 300MW of the thermal power plant unit deoxygenator, condensate pump belongs to 6kV equipment, pumping capacity is big, the power height, about about 800 to 1000kW, the required condensing water flow of power plant units initial start stage is less greatly, and it is bigger to depart from condensate pump operation nominal operating conditions, and condensate pump operational efficiency under underload is very low, and energy wastage is serious.
The utility model content
Technical scheme: comprise condenser, coagulate water supply tank, deoxygenator is characterized in that: described condenser is successively by pipe connection condensate pump, condensed water pump valve with divide valve to the deoxygenator upper hose, divide on the pipeline between condensed water pump valve and the branch valve and set out fore pump sealing waterpipe, coagulate water supply tank and pass through pipe connection heat supply desuperheating water topping-up pump, supercharging pump valve and main valve successively to the deoxygenator upper hose, divide on the pipeline between supercharging pump valve and the main valve to set out heat supply water pipeline, be installed into water valve on the deoxygenator upper hose.
Beneficial effect:
For reducing cost of electricity-generating, make great efforts to reduce station service power consumption rate and net coal consumption rate, reduce the consumption of condensate pump in the unit starting process, utilize existing equipment and system, optimize Starting mode, replace the condensate pump of the big flow of superpower to water on the deoxygenator with power and the less heat supply desuperheating water topping-up pump of rated flow, can avoid the power loss moved under the underload of unit starting initial stage condensate pump, consumption and the waste of electric energy when reducing unit starting, and heat supply desuperheat water pump is the 380V low-voltage equipment, power has only 55kW, and flow and lift all can meet the demands, and the contrast energy-saving effect is remarkable.
Description of drawings:
Accompanying drawing 1 is the structural representation of present embodiment.
Embodiment
With reference to accompanying drawing 1, present embodiment mainly comprises condenser 1, coagulates water supply tank 2, deoxygenator 3, described condenser 1 passes through pipe connection condensate pump 4, condensed water pump valve 5 successively and divides valve 6 to deoxygenator upper hose 7, divides on the pipeline between condensed water pump valve 5 and the branch valve 6 to set out fore pump sealing waterpipe 8; Coagulate water supply tank 2 and pass through pipe connection heat supply desuperheating water topping-up pump 9, supercharging pump valve 10 and main valve 11 successively to deoxygenator upper hose 7, divide on the pipeline between supercharging pump valve 10 and the main valve 11 to set out heat supply water pipeline 12, be installed into water valve 13 on the deoxygenator upper hose 7.
At the unit starting initial stage, close condensed water pump valve 5, open heat supply desuperheating water topping-up pump 9, open supercharging pump valve 10 and main valve 11, provide sealing water by minute valve 6 for service pump, be water on the deoxygenator by water intaking valve 13.
Through calculating:
Press on the deoxygenator water and flushing operation 3 hours, boiler water filling operation 4 hours, raise steam be to air closing travel 3 hours,
If with the operation of heat supply cooling water topping-up pump, rate of load condensate is calculated by 90%, current consumption is 55*10*0.9=495kWh;
If with condensate pump operation, rate of load condensate is calculated by 60%, and current consumption is: 900*10*0.6=5400 kWh, and the contrast 5400-495=4905 kWh that can economize on electricity calculates for 5 times according to unit start and stop in a year, and 4905*5=24525kWh can economize on electricity in year.
Claims (1)
1. Power Plant deoxygenator water-supply apparatus, comprise condenser, coagulate water supply tank, deoxygenator, it is characterized in that: described condenser passes through pipe connection condensate pump, condensed water pump valve successively and divides valve to the deoxygenator upper hose, divide on the pipeline between condensed water pump valve and the branch valve and set out fore pump sealing waterpipe, coagulate water supply tank and pass through pipe connection heat supply desuperheating water topping-up pump, supercharging pump valve and main valve successively to the deoxygenator upper hose, divide on the pipeline between supercharging pump valve and the main valve to set out heat supply water pipeline, be installed into water valve on the deoxygenator upper hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204441 CN203159272U (en) | 2013-04-22 | 2013-04-22 | Deaerator water supply device for unit in power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204441 CN203159272U (en) | 2013-04-22 | 2013-04-22 | Deaerator water supply device for unit in power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159272U true CN203159272U (en) | 2013-08-28 |
Family
ID=49020475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204441 Expired - Fee Related CN203159272U (en) | 2013-04-22 | 2013-04-22 | Deaerator water supply device for unit in power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613463A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Gas thermal power plant two-dragging-one set condensate system and start and stop method thereof |
| CN106594779A (en) * | 2016-11-29 | 2017-04-26 | 无锡市锡源锅炉有限公司 | Biofuel boiler smoke discharge afterheat utilization system |
-
2013
- 2013-04-22 CN CN 201320204441 patent/CN203159272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613463A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Gas thermal power plant two-dragging-one set condensate system and start and stop method thereof |
| CN106594779A (en) * | 2016-11-29 | 2017-04-26 | 无锡市锡源锅炉有限公司 | Biofuel boiler smoke discharge afterheat utilization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20180422 |