某电厂机组fgd项目旁路挡板招标文件(编辑修改稿)

某电厂机组fgd项目旁路挡板招标文件(编辑修改稿)内容摘要：

orward by the demander can be met and can realize reliable, safe and long operation when in the range of working capacity. 卖方保证满足需方提出的烟气挡板性能设计参数，在工作容量范围内，均能长期安全稳定运行。 Flue Gas Damper烟气挡板 For flue gas damper, louver type, twin blade structure should be adopted. 烟气挡板应采取百叶窗式双挡板结构型式。 There shall be 100% air tightness under the design pressure and the design temperature. 在设计压力和设计温度下应有 100%气密性。 The plete set of flue gas damper shall inc lude framework, double layer board, actuator, hand wheel as well as all necessary sealing members and control parts of sealing air system. Additionally, flexible, reliable and convenient operation of all necessary isolation dampers is required. 整套烟气挡板应包括框架、双层板、执行机构、手轮及密封空气系统的所有必需的密封件、控制件等。 同时要求全部必需的隔绝挡板的操作应是灵活可靠和方便的。 Under the maximum differential pressure, flue gas damper can be operated and closed tightly without curve or lock. When damper is at the full open or full closed location, it can match with the locking system. The design and location of damper shall make the ash deposit or dust deposit on damper piece lessened to least. 烟气挡板应能够在最大的压差下操作，关闭严密，不会有弯曲或卡住，而且挡板在全开和全闭位置与锁紧装置 要能匹配，挡板设计要使挡板片上的积灰或积尘减至最小。 All bearings of the running gears of axis or dampers shall be provided with lubricating oil. The obvious marks identifying the damper39。 s location shall be made at the end of axis and interlock limit switch shall be provided. 轴或挡板 工作齿轮的所有轴承应注入油润滑。 在轴的末端装有指示挡板位置的显眼的标志。 并配有联锁限位开关。 The maximum operating force for handwheels shall not exceed 140N. Lifting lug or lifting hole shall be set at the appropriate place outside the framework to facilitate transportation and erection. 手轮操作的最大力不 得超过 140N。 框架外部适当位置处应设有吊耳或吊孔 , 以方便运输和安装。 Each damper part shall be designed to have enough strength to bear all the high temperature drift range of the flue gas without damage, cohere, deformation or leakage. 每个挡板零部件应设计有足够强度 , 能承受烟气全部高温偏移范围，没有损伤，粘连，变形或泄漏。 Each damper part shall be designed according to the maximum design positive pressure value and negative pressure value that will possibly happen. 每一挡板部件应按可能发生的最大设计正压和负压值来设计。 Each damper and drive device shall be designed to bear corrosion of surrounding medium under all operation conditions. 每一挡板和驱动装置应设计成承受所有运行条件下周围介质的腐蚀。 The internal parts (including the damper piece) of the damper can be conveniently and quickly moved or replaced from the damper framework, which is installed on the flue gas duct. The external parts of the damper can be moved or replaced when the damper is in working condition. 挡板内部部件 (包括挡板片 ) 都应能方便而快速地从安装在烟道上的挡板框架上拆卸或更换。 而其外部部件都应能在挡板处于工作状态下拆卸或更换。 Bolt and flange connection shall be adopted for framework. The supplier shall provide the flange (including the counter flange of the damper, bolt and nut) mounted on the existing flue gas duct. Special attention should also be given to the welding of stainless steel and mon steel so as to minimize corrosion. 框架应是螺栓和法兰连接。 卖方应提供现有烟道上的安装法兰 (包括挡板门的反法 兰及螺栓、螺母 )。 特别要注意不锈钢与普通钢的焊接，以将腐蚀减小至最低限。 The materials of bypass damper vane (clean flue gas side) are the materials whose grade is equivalent to or better material. The materials of sealing strip and bolt are the materials equivalent to or alloy steel C276. The outer surface of the damper shall be made of the materials equivalent to carbon steel Q235 or better materials than that. The lining materials are the materials equivalent to or better materials than that. The selection of the material cannot release the responsibility of the supplier to select right material. 旁路烟道的挡板框架叶片和轴的材料是等级相当于 ，挡板密封片和螺栓是相当于 （合金钢 C276）材料。 挡板外表面用相当于碳钢 Q235或更好的材料制作，内衬的材料等级相当于。 这些材料要求并不减轻卖方正确选择材料的责任。 The main axis of the damper shall be set as horizontal. Every damper and its drive device shall match well with the onsite platform so as to pletely and safely access all parts via stairs. Drive unit shall move with the damper39。 s expansion and shrink. 挡板的主轴应布置成水平。 每个挡板及其驱动装置应能与其在现场的平台配合良好，以便能通过楼梯充分和安全地接近所有部件。 驱动装置将随挡板的膨胀和紧缩而移动。 Electric Actuator of the Damper 挡板 电动执行机构 Dampers shall be provided with remote control actuator and local manual operated actuation installed on walkway or floor. Additionally, local installed indicator of damper location shall be provided. 挡板应有远程控制和安装在走道或楼面就地人工操作的电动执行机构，还应有就地安装的挡板位置指示器。 The actuator of the damper shall be provided with location positioning switches of the two ends, rotating switch for two directions, accident hand wheel and mechanical interlock for maintenance use. The opening and closing time of the electric actuator shall meet the operating requirements. The indication of the opening location (opening) of the actuator will be used for the interlock of booster fan and boiler. 挡板执行机构应配备两端的位置定位开关、两个方向的转动开关、事故手轮和维修用的机械连锁。 电动执行机构的启闭时间应满足运行要求。 电动执行机构打开位置 (开度 )的指示将用于升压风机和锅炉连锁上。 All dampers shall be provided with 3 limit switches indicating full open and 3 limit switches indicating full closed. The switch of drive unit shall not influence these limit switches. Limit switches shall be provided on each end of the range and can directly indicate the location of the damper piece. 挡板应配有 3个指示全开或全闭的限制开关。 这些限制开关将不受配有驱动装置的开关的限制。 在行程的每端应配有限制开关 ,并且能直接指示板片的位置。 Machineelectricityliquid integrated products shall be adopted for the electric actuator of the damper and three phase working power of 380V AC, 50Hz shall be adopted. 挡板的电动执行机构应采用机械 电气 流体联合产品，电源采用 380伏 50Hz三相交流电。 电动装置为“智能一体化”产品。 For signal and/or control purpose, range and limit torque switches are used. Each actuator is provided with two location switches and two torque switches for rotating clockwise and anticlockwise. 信号和 /或控制中采用限程限位力矩开关。 每个执行机构都配置两个限位开关和两个力矩开关，以可顺时针和逆时针旋转。 Sealing Air System of the Flue Gas Damper 烟气挡板配套的密封空气系统 The Supplier is responsible for the design of the seali。