(辽宁庄河核电有限公司大连庄河116400)
摘要:根据本厂实际深度挖掘机组节省厂用电的潜能,以“锱铢必较,度点必省”为目标,脚踏实地精心调整,从多个方面进行调整、优化,综合降低厂用电率。随着全国电力市场需求日益增大,环境问题日益突出,新能源发电企业全面兴起,为此火力发电厂占全网份额正逐年降低,同时受煤炭价格持续走高、环保任务持续加重等问题影响,火电厂的生产、经营局面正面临巨大挑战。国家电网为充分利用新能源电力出台多项改革措施,受此影响火力发电厂负荷率逐年下降,调峰深度一度突破历史极值,火力发电厂的安全、经济两项重要指标正接受严峻考验。在此不利形势下,如何增强火力发电厂的竞争力,提高盈利能力成为各家火电企业所共同关注的核心问题。为摆脱煤炭市场带来的巨大影响,配煤掺烧持续深入开展,取得了较好成效,但辅机电耗、设备磨损也大幅提高,节能降耗工作被推上了历史最高峰。节能降耗、低碳发展一直以来都是各家企业的重点工作,对提升企业的市场竞争力也有着不容忽视的重要地位,对社会影响同样深远。降低厂用电率则是节能降耗的重点工作之一,它是衡量火力发电厂经济性的重要经济技术指标,其中综合厂用电率更是衡量同类型机组生产运营管理水平的重要依据,各企业也将降低综合厂用电率作为强化生产管理、提高企业效益的一项重要任务和目标。电网方面原因使机组长期处于低效区运行,煤炭市场的变化使锅炉燃煤严重偏离设计煤种,环保改造增加了新的设备系统,改变了原有的烟风系统的助力使烟风系统运行偏离设计值,因此如何降低综合厂用电率应根据本企业机组实际情况而定,切不能一锅烩,一刀切,应通过科学技改、运行优化调整、完善设备检修管理制度等方式综合治理,深度瓦解设备潜能,降低综合厂用电率,提升企业盈利能力。
关键词:电厂厂用电率节能优化
Deeptappingpotentialreducestheelectricityconsumptionrateofintegratedplants
Liudongwei
(DatangQitaihePowerGenerationCo.,LtdQitaiheHeilongjiang154600)
Abstract: Based on the potential for saving power consumption of the actual depth excavator unit in our factory, with the goal of "scrutinizing every penny and saving every degree", we have carefully adjusted and optimized multiple aspects through practical measures to comprehensively reduce the factory's power consumption rate. As the demand for electricity nationwide continues to increase and environmental issues become increasingly prominent, the development of new energy power generation enterprises is comprehensive. As a result, the share of thermal power plants in the entire network is decreasing year by year, and at the same time, due to problems such as the continuous increase in coal prices and environmental protection tasks, the production and management of thermal power plants are facing enormous challenges. State Grid has introduced a number of reform measures to fully utilize new energy electricity. As a result, the load rate of thermal power plants has been decreasing year by year, and peak shaving depth has once exceeded historical extremes. The two important indicators of safety and economy of thermal power plants are facing rigorous test..In this unfavorable situation, how to enhance the competitiveness of thermal power plants and improve profitability has become a core issue that all thermal power enterprises are concerned about. To get rid of the huge impact of the coal market, continuous deepening of coal blending has achieved good results, but the auxiliary electrical consumption and equipment wear have also increased significantly. Energy conservation and consumption reduction work has been pushed to the historical peak. Energy conservation and low-carbon development have always been key tasks for various enterprises, and they also have an important position that cannot be ignored in enhancing the market competitiveness of enterprises. The impact on society is equally profound. Reducing the factory's electricity consumption rate is one of the key tasks of energy conservation and consumption reduction. It is an important economic technical indicator that measures the economy of thermal power plants. The comprehensive factory's electricity consumption rate is an important basis for measuring the production and operation management level of similar units. Enterprises also consider reducing the comprehensive factory's electricity consumption rate as an important task and goal to strengthen production management and improve enterprise efficiency. Grid-related reasons cause units to operate in low-efficiency areas for a long time. Changes in the coal market cause serious deviation of boiler coal from the designed coal species. Environmental protection reforms have added new equipment systems and changed the original smoke air system to run away from design values. Therefore, how to reduce the comprehensive factory's electricity consumption rate should be based on the actual situation of the enterprise's units, and cannot be a one-size-fits-all approach. We should comprehensively manage through scientific technological changes, operational optimization adjustments, and improving equipment maintenance management systems, deeply disintegrating equipment potential, reducing the comprehensive factory's electricity consumption rate, and improving enterprise profitability.
Keywords: power plant electricity consumption rate, energy saving, optimization.
根据本厂生产实际,就以下六个方面进行深度阐述降低综合厂用电率的具体措施。
一、深度优化制粉系统运行方式降低厂用电率
二、优化烟风系统参数降低厂用电率
锅炉烟风系统内主要包含送风机、引风机、一次风机、增压风机等。降低烟风系统厂用电率主要有三种途径,一是降低系统阻力,降低风机出力;二是严格控制氧量,减少锅炉漏风;三是风机超低排放改型后重新测定风机经济方式。
三、脱硫除灰系统优化调整降低综合厂用电率
四、循环水系统优化运行调整降低厂用电率
五、电气运行调整降低综合厂用电率
六、其他设备系统优化
结束语
降低厂用电率是提升发电企业经济效益的一项有效措施,面对激烈的竞争形势,企业在追求节能经济的同时更应该重视机组的安全可靠性,节能和安全在某些层面来说是相互对立的,因此要结合电厂实际,全方位综合运用各类节电措施。强化机组优化运行和设备管理,以科技创新为着力点,不断地挖掘节能潜力,谋求企业经济效益的最大化。
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