CN104296121A - Power station boiler neighbor machine steam heating starting device and warm starting method - Google Patents
Power station boiler neighbor machine steam heating starting device and warm starting method Download PDFInfo
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- CN104296121A CN104296121A CN201410496897.1A CN201410496897A CN104296121A CN 104296121 A CN104296121 A CN 104296121A CN 201410496897 A CN201410496897 A CN 201410496897A CN 104296121 A CN104296121 A CN 104296121A
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Abstract
The invention provides a power station boiler neighbor machine steam heating starting device and warm starting method. A large number of working media and heat energy are wasted in an existing once-through boiler starting mode. The power station boiler neighbor machine steam heating starting device comprises a deaerator water tank (2) connected with a condensate pipe (1), the deaerator water tank is connected with a water feed pump (13) through a tube bundle, the water feed pump is connected with a high pressure heater (12) through an electric valve (3), the high pressure heater (12) is connected with a steam heating tube (4) through an electric valve and connected with a water cooling chamber (9) through a tube bundle, the water cooling chamber is connected with a steam-water separator (6), the steam-water separator is connected with a separator water tank (7) through a tube bundle, a drain water expander is connected with a water tank (14), the water tank is connected with a drain transfer pump (11) through a tube bundle, and the drain transfer pump is connected with the deaerator water tank through a tube bundle. The power station boiler neighbor machine steam heating starting device and warm starting method are used for power station boiler neighbor machine steam heating starting.
Description
technical field:
the present invention relates to a kind of station boiler adjacent machine Steam Heating starting drive and hot start method.
background technology:
the Starting mode of existing direct current cooker generally has two kinds: dewatering capacity-enlarging formula and band boiler water circulating pump formula.There is a large amount of working medium and heat waste in dewatering capacity-enlarging formula Starting mode, though and Starting mode with boiler water circulating pump can save part working medium and heat, there is system complex and the higher shortcoming of initial cost.Sparking mode, Plasma Firing Technology and small oil gun igniting all belong to the igniting of black furnace cold wind, have the coal of about 50% to waste because of not burning, and the coal dust do not burnt are a kind of huge hidden danger concerning boiler at ignition phase.
summary of the invention:
the object of this invention is to provide a kind of station boiler adjacent machine Steam Heating starting drive and hot start method.
above-mentioned object is realized by following technical scheme:
the adjacent machine Steam Heating starting drive of a kind of station boiler, its composition comprises: deaerator storage tank, described deaerator storage tank is connected with condensate pipe, described deaerator storage tank is connected with feed pump by tube bank, described feed pump adds heater by electrically operated valve and height and is connected, described height is added heater and is connected with heating steam pipe by electrically operated valve, described heating steam pipe acts on economizer, described height is added heater and is connected with water cooling chamber by tube bank, described height is added heater and is connected with boiler water circulating pump by tube bank, described water cooling chamber is connected with steam-water separator by tube bank, described steam-water separator is connected with separator sump by tube bank, hydrophobic development unit is accessed between described separator sump and boiler water circulating pump, described hydrophobic development unit is connected with water tank, described water tank is connected with drain transfer pump by tube bank, described hydrophobic fantasy pump is by tube bank and deaerator storage tank.
the adjacent machine Steam Heating starting drive of station boiler described in utilization carries out the method for thermal starting, after boiler water filling completes, starting trouble feed pump, start low discharge and provide feedwater to boiler, feedwater flow maintains about 500 ~ 600t/h, open the electrically operated valve of steam pipeline (trace) simultaneously, utilize adjacent stove cold reheated steam heating high-pressure heater to steam parameters 300 DEG C, 60bar, feedwater now can be selected enter condenser or directly enter oxygen-eliminating device according to quality and cleaning performance, heat up gradually in the process of low discharge feedwater constantly circulation in boiler, until reach feedwater heating limits, now feed temperature is about 250 DEG C, start air and flue system, boiler starts igniting, the thermally equivalent of burner hearth now, spray into the diesel oil energy Thorough combustion in burner hearth, efficiency of combustion is than high during black furnace thorax, because feedwater heated economizer when radiator, the economizer having huge surface area has become huge " warm-air drier ", cold wind in burner hearth is heated through economizer and heated First air and Secondary Air by air preheater, just can meet within the extremely short time and throw vermicelli part, substantially reduce the throwing oil time of boiler startup, further reduce the amount of fuel of boiler startup igniting, simultaneously owing to throwing oily time shorten, electric cleaner can be dropped into as early as possible, meet power plant's environmental requirement better.
beneficial effect:
1. main thought of the present invention adopts steam replacing fuel oil and fire coal, carries out entirety preheat boiler, makes boiler be in the thermal environment of " hot stove, hot blast " when lighting a fire.The system of the method is simple, and implement easily, the expense increased is far below other oil saving method such as plasma ignitions.After adopting mode of the present invention, the fuel oil intensity of boiler needed for start-up course greatly reduces, and fuel oil process shortens greatly, thus makes overall fuel consumption decline more than an order of magnitude.At present, the ignition oil of each boiler startup is only 20t; Station service and Coal-fired capacity can also be greatly reduced, the energy total amount that the whole start-up course of remarkable reduction consumes and startup totle drilling cost simultaneously.In addition, the method not only transfers boiler to hot starting, hot start by original cold start, and makes the service condition of air and gas system more be better than hot starting, hot start, greatly improves the igniting of boiler and steady combustion condition, significantly improves the start-up safety of boiler.
accompanying drawing illustrates:
if Fig. 1 is structural representation of the present invention.
detailed description of the invention:
embodiment 1:
the adjacent machine Steam Heating starting drive of a kind of station boiler, its composition comprises: deaerator storage tank 2, described deaerator storage tank is connected with condensate pipe 1, described deaerator storage tank is connected with feed pump 13 by tube bank, described feed pump adds heater 12 by electrically operated valve 3 and height and is connected, described height is added heater and is connected with heating steam pipe 4 by electrically operated valve, described heating steam pipe acts on economizer 5, described height is added heater and is connected with water cooling chamber 9 by tube bank, described height is added heater and is connected with boiler water circulating pump 10 by tube bank, described water cooling chamber is connected with steam-water separator 6 by tube bank, described steam-water separator is connected with separator sump 7 by tube bank, hydrophobic development unit 8 is accessed between described separator sump and boiler water circulating pump, described hydrophobic development unit is connected with water tank 14, described water tank is connected with drain transfer pump 11 by tube bank, described hydrophobic fantasy pump is by tube bank and deaerator storage tank.
embodiment 2:
station boiler according to embodiment 1 or 2 adjacent machine Steam Heating starting drive and method of work, after boiler water filling completes, starting trouble feed pump, start low discharge and provide feedwater to boiler, feedwater flow maintains about 500 ~ 600t/h, open the electrically operated valve of steam pipeline (trace) simultaneously, utilize adjacent stove cold reheated steam heating high-pressure heater to steam parameters 300 DEG C, 60bar, feedwater now can be selected enter condenser or directly enter oxygen-eliminating device according to quality and cleaning performance, heat up gradually in the process of low discharge feedwater constantly circulation in boiler, until reach feedwater heating limits, now feed temperature is about 250 DEG C, start air and flue system, boiler starts igniting, the thermally equivalent of burner hearth now, spray into the diesel oil energy Thorough combustion in burner hearth, efficiency of combustion is than high during black furnace thorax, because feedwater heated economizer when radiator, the economizer having huge surface area has become huge " warm-air drier ", cold wind in burner hearth is heated through economizer and heated First air and Secondary Air by air preheater, just can meet within the extremely short time and throw vermicelli part, substantially reduce the throwing oil time of boiler startup, further reduce the amount of fuel of boiler startup igniting, simultaneously owing to throwing oily time shorten, electric cleaner can be dropped into as early as possible, meet power plant's environmental requirement better.
Claims (2)
1. the adjacent machine Steam Heating starting drive of station boiler, its composition comprises: deaerator storage tank, it is characterized in that: described deaerator storage tank is connected with condensate pipe, described deaerator storage tank is connected with feed pump by tube bank, described feed pump adds heater by electrically operated valve and height and is connected, described height is added heater and is connected with heating steam pipe by electrically operated valve, described heating steam pipe acts on economizer, described height is added heater and is connected with water cooling chamber by tube bank, described height is added heater and is connected with boiler water circulating pump by tube bank, described water cooling chamber is connected with steam-water separator by tube bank, described steam-water separator is connected with separator sump by tube bank, hydrophobic development unit is accessed between described separator sump and boiler water circulating pump, described hydrophobic development unit is connected with water tank, described water tank is connected with drain transfer pump by tube bank, described hydrophobic fantasy pump is by tube bank and deaerator storage tank.
2. the method utilizing the station boiler described in claim 1 to carry out starting with adjacent machine Steam Heating starting drive, it is characterized in that: after boiler water filling completes, starting trouble feed pump, start low discharge and provide feedwater to boiler, feedwater flow maintains about 500 ~ 600t/h, open the electrically operated valve of steam pipeline (trace) simultaneously, utilize adjacent stove cold reheated steam heating high-pressure heater to steam parameters 300 DEG C, 60bar, feedwater now can be selected enter condenser or directly enter oxygen-eliminating device according to quality and cleaning performance, heat up gradually in the process of low discharge feedwater constantly circulation in boiler, until reach feedwater heating limits, now feed temperature is about 250 DEG C, start air and flue system, boiler starts igniting, the thermally equivalent of burner hearth now, spray into the diesel oil energy Thorough combustion in burner hearth, efficiency of combustion is than high during black furnace thorax, because feedwater heated economizer when radiator, the economizer having huge surface area has become huge " warm-air drier ", cold wind in burner hearth is heated through economizer and heated First air and Secondary Air by air preheater, just can meet within the extremely short time and throw vermicelli part, substantially reduce the throwing oil time of boiler startup, further reduce the amount of fuel of boiler startup igniting, simultaneously owing to throwing oily time shorten, electric cleaner can be dropped into as early as possible, meet power plant's environmental requirement better.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496897.1A CN104296121A (en) | 2014-09-25 | 2014-09-25 | Power station boiler neighbor machine steam heating starting device and warm starting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496897.1A CN104296121A (en) | 2014-09-25 | 2014-09-25 | Power station boiler neighbor machine steam heating starting device and warm starting method |
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| Publication Number | Publication Date |
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| CN104296121A true CN104296121A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410496897.1A Withdrawn CN104296121A (en) | 2014-09-25 | 2014-09-25 | Power station boiler neighbor machine steam heating starting device and warm starting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016242A (en) * | 2016-05-24 | 2016-10-12 | 南京电力设备质量性能检验中心 | Normal putting-into-operation device for realizing denitration at starting stage by heating fed water and fume in close-furnace grading manner |
| CN108665991A (en) * | 2018-05-29 | 2018-10-16 | 西安热工研究院有限公司 | A kind of system and method for high temperature gas cooled reactor nuclear power generating sets very hot startup |
| CN109539223A (en) * | 2018-11-27 | 2019-03-29 | 国投北部湾发电有限公司 | A kind of 320MW fired power generating unit is started without the cold start method of boiler |
| CN110043918A (en) * | 2019-04-18 | 2019-07-23 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of adjacent stove heating activation system with steam air heater |
| CN111256105A (en) * | 2020-01-20 | 2020-06-09 | 上海发电设备成套设计研究院有限责任公司 | Micro-furnace heating system and method for quickly starting ultra-supercritical unit |
-
2014
- 2014-09-25 CN CN201410496897.1A patent/CN104296121A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016242A (en) * | 2016-05-24 | 2016-10-12 | 南京电力设备质量性能检验中心 | Normal putting-into-operation device for realizing denitration at starting stage by heating fed water and fume in close-furnace grading manner |
| CN106016242B (en) * | 2016-05-24 | 2018-01-30 | 南京电力设备质量性能检验中心 | Face the feedwater of stove progressive solution and flue gas realizes startup stage denitration bringing normally into operation device |
| CN108665991A (en) * | 2018-05-29 | 2018-10-16 | 西安热工研究院有限公司 | A kind of system and method for high temperature gas cooled reactor nuclear power generating sets very hot startup |
| CN109539223A (en) * | 2018-11-27 | 2019-03-29 | 国投北部湾发电有限公司 | A kind of 320MW fired power generating unit is started without the cold start method of boiler |
| CN109539223B (en) * | 2018-11-27 | 2020-04-21 | 国投北部湾发电有限公司 | Cold-state starting method for 320MW thermal power generating unit without starting boiler |
| CN110043918A (en) * | 2019-04-18 | 2019-07-23 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of adjacent stove heating activation system with steam air heater |
| CN110043918B (en) * | 2019-04-18 | 2024-04-02 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Adjacent furnace heating starting system with air heater |
| CN111256105A (en) * | 2020-01-20 | 2020-06-09 | 上海发电设备成套设计研究院有限责任公司 | Micro-furnace heating system and method for quickly starting ultra-supercritical unit |
| CN111256105B (en) * | 2020-01-20 | 2022-01-07 | 上海发电设备成套设计研究院有限责任公司 | Micro-furnace heating system and method for quickly starting ultra-supercritical unit |
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Application publication date: 20150121 |