| 加工定制是 | 品牌济柴 |
| 型号556D | 产品名称济柴 |
| 适用范围发电 |
除氧器在机组中除起着给水除氧作用外，仍是一级非调整抽汽回热加热器，故除氧器正常工况下选用滑压运转，加热蒸汽来自主汽轮机的第四段抽汽，滑压运转的压力规模为0. 2～0. 88mpa。为避免除氧器满水时向汽缸倒灌，在抽汽管道上设有电动阻隔阀和逆止阀。
in addition to water deoxidization, the deaerator is still the first class non adjusted steam recovery heater, so the deaerator uses sliding pressure operation under the normal condition of the deaerator. the heating steam comes from fourth sections of the main steam turbine, and the pressure of the sliding pressure operation is 0.2 to 0. 88mpa. in order to avoid the backflow of the deaerator when it is full of water, there are electric barrier valves and check valves on the extraction pipeline.
为确保机组启、停及甩负荷工况下除氧器的除氧作用，除氧器由辅佐汽源供汽，在辅佐汽源至除氧器的管道上设有除氧器压力调节阀。在机组启、停进程及甩负荷时，若除氧器的压力低于0. 2mpa，除氧器的汽源切换至辅佐汽源，此时除氧器选用定压运转。
in order to ensure the deaerator deaerator under the operating conditions of the unit, the deaerator is supplied with the steam source, and the deaerator pressure regulating valve is installed on the pipe to assist the steam source to the deaerator. if the pressure of the deaerator is lower than 0. 2mpa, the deaerator&＃39;s steam source switches to the auxiliary steam source when the deaerator&＃39;s pressure is less than 0., and the deaerator selects the constant pressure operation at this time.
1．除氧器运转特色
1. deaerator operating characteristics
(1)除氧器的水位操控分单冲量和三冲量两种方法，低于某一负荷时，选用“单冲量”操控，以除氧器水位直接作为操控信号，高于某一负荷时，主动切换至“三冲量”操控，则主要以除氧器水位、给水流量以及凝聚水流量作为操控信号。
(1) the water level control of the deaerator is divided into two methods, single impulse and three impulse. under a certain load, the "single impulse" is used to control the water level of the deaerator directly as the control signal. when it is higher than a certain load, the control is switched to "three impulse", and the water level, water supply flow and condensed water flow are mainly used as the deaerator. control the signal.
(2)设有汽轮机防进水维护，除氧器正常水位操控除氧器的补水调节阀；高高水位，封闭除氧器的进水调节阀及其旁路电动阀，以及高压加热器正常疏水气动阀，打开除氧器的事端泄放阀；高高高水位，主动封闭除氧器进汽电动阀。别的，除氧器高水位则作为高高水位维护动作的逻辑条件。
(2) there is a steam turbine to prevent water intake maintenance, the normal water level of the deaerator controls the water supplement valve of the deaerator; the high water level, the inlet valve of the closed deaerator and its bypass electric valve, and the normal hydrophobic pneumatic valve of the high pressure heater, open the discharge valve of the deaerator; the high and high water level, the active sealing deaerator into the steam. valve. in addition, the high water level of deaerator is the logical condition for the maintenance of high and high water level.
(3)除氧器的压力可完成主动或手动操控，正常运转中，除氧器压力随抽汽压力改变而改变，坚持滑压运转。在机组启、停和低负荷状态下运转时，则用辅佐蒸汽经过压力操控阀对除氧器的压力进行主动或手动操控。
(3) the pressure of the deaerator can be controlled by active or manual operation. during normal operation, the pressure of the deaerator changes with the change of the extraction pressure, and the sliding pressure operation is maintained. when the unit starts, stops and operates at low load, the pressure of the deaerator is controlled manually or manually by auxiliary steam through the pressure control valve.
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济南济柴环能燃气发电设备有限公司
李先生
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山东 济南 天桥区