锅炉行业标准采暖,地暖,上海诺科暖通工程有限公司
9.6.11 强制循环锅炉应有下列联锁和保护装置:
a) 锅水循环泵进出口差压保护；
b〉电动机内部水温高保护；
c〉锅水循环泵出口阅与泵的联锁装置。
9.6.11 forced-circulation boiler should be equipped with the following interlocking and protection device:
a) Protection of the boiler water circulation pump;
b) Protection of the motor internal water temperature;
c) Interlocking device between outlet valve of boiler water circulation pump and the pump.
9.6.12 高压加热器应有高水位保护,水位过高时,能自动开启危急疏水门放水,并切断加热器给水,但不能导致锅炉断水。
除氧器应有压力高、水位高保护。
9.6.12 High pressure heater should have high waterline protection. When the waterline is too high, it could automatically open the emergency water dump gate and cut off the water supply of the heater, but should avoid the water shortage of boiler.
9.6.13 控制保护系统功能的在线维护和检查,不应影响控制保护整体的可靠性。强制性主燃料跳闸的检测元件和线路,应与其他控制监视系统分开。联锁、保护系统应有防止电源中断或恢复时出现误动作的措施。
9.6.13 The online maintenance and check of the control and protection system should not damage the reliability of the control and protection system. The check components and circuitry of forced main fuel trip should be separated from other control and monitoring system. The interlocking and protection system should have measures that prevent power break down and wrong resume operation.
9.6.14 锅炉操作盘上应设有必要的声、光报警信号,如火焰显示、水位、压力、温度高低以及各种保护装置动作等。
9.6.14 The boiler control board should have necessary sound and light alarming signals, such as flame display, water line, pressure, temperature and other protection device etc.
9.6.15 循环流化床锅炉,除水位控制等常规装置外,其他监控、保护、联锁装置,根据设备特点及其特殊要求,由设计单位确定。
9.6.15Except the
water line control such usual device , other control ,protection and interlocking device of the Circulating Fluidized Bed Boiler should be decided by the design unit according to the equipment features and the special requirement.
9.7 主要阀门
9.7 Main valves
9.7.1 锅炉汽水管道的阀门及调整装置应有明显标志,标明阀门名称、编号、开关方向以及工质流动方向,主要调节阀应有开度指示。阀门的操作机构设在便于操作的地点,在全开、全关位置有限制越位的机构。
9.7.1 The valve and the adjustment device of the boiler steaming-water pipe should be clearly marked, which should indicate the valve name, number, switch direction and working medium flowing direction, and the main regulating valve should have opening indicator. The operating organization should be designed at operation convenience, and the full open and close switch should be limited by the offside organization.
9.7.2 采用定速给水泵供水的锅炉,其省煤器前的进水管上应装设给水截止间和给水调节阀。额定蒸发量120t/h及以上的锅炉给水截止阀应配备远方操作机构。
9.7.2 For the boiler with constant water supply pump, its coal economizer intake waterpipe should be installed with water block valve and regulating valve. For the boiler with the rating evaporation
Volume 120t/h and 120t/h more, the block valve should have remote control.
9.7.3在汽包、过热器、再热器、面式减温器水室、自冷凝联箱、汽—汽热交换器等可能聚集空气的部位均应装设空气阀。
Air valve should be installed where air could possibly gathers, such as he steam drum, the superheater, the reheater, 面式减温器水室, 自冷凝联箱, the steam to steam heat interchanger and so on.
9.7.4水冷壁下联箱、省煤器进只联箱、过热器联箱、再热器联箱、蒸汽管和给水管的最低点等可能有沉淀物或积水处，应装设 排污阀、放水阀或疏水阀。排污管、放水管或疏水管应分别连接到各自的总管上，每管均应串接两个阀门，两阀门间的管段应尽量缩短。Blowdown valve，offlet valve or drain valve should be installed in the lowest points of
water cooling wall lower header, coal economizer inlet header, superheater header, reheater header steam pipe and water supply pipe where dregs or seeper could possibly exist. Waste draining pipe, offlet or drain pipe should be connected to the main pipe; each pipe should connect two valves with the most possible short valve-to-valve pipe length.
排污阀门内径不小于２０ｍｍ，连续排污宜用针形阀作调节阀，在调节阀前后装截止阀。
Waste draining valve ID should be no less than 20mm, with the needle valve as its regulating valve, at the back of which a stop valve is installed.
9.7.5 额定蒸发量等于或大于220t/h的汽包锅炉，都应在过热器出口装设电动向空排气阀。
Boiler whose rating evaporation volume is equal to or is bigger than 220t/h, should be equipped eith electric spatial discharge valve at the superheater outlet.
9.7.6母管制机组的锅炉与蒸汽母管之间应有主汽阀，主汽阀要实现远方控制。
There should be a main valve between mother tube boiler and steam mother tube, which should be in remote control.
9.7.7采用母管制供水的电厂，进入每台锅炉省煤器前的给水支管均应装设截止阀与逆止阀。两阀应紧接，按水流方向逆止阀在前。
Water supplying pipe in front of the coal economizer should be installed with a stop valve and check valve for the factory using boiler of mother tube water supplying.
9.7.8燃油、燃气锅炉必须装有速断阀，并实现远方控制，以保证事故时能迅速切断入炉燃料。速断阀应伴有旁路阀门，以便运行中定期试验。试验完毕，旁路阀门应关闭并予闭锁。
The oil-firing and gas-firing boiler must beinstalled with fast valve which should be in remote control to ensure when accident happens it can rapidly shut off fuel supply being sent into the stove. Fast valve should be accompanied by bypass valve, in order to carry out regularly experiments when running. When the experiment isfinished, bypass valve should shut down and be locked.
9.8 给水系统及其他 Water supplying system and others
9.8.1 锅炉给水系统要保证安全可靠地向锅炉供水。在全厂停电时不能从厂外取得可靠厂用电源时，应装设备用汽动给水泵。当有两台以上电动给水泵时，给水泵的电源应从厂用电系统不同的母线段取得。
The boiler water supply system must guarantee to safely and reliably supply water to the boiler. When the entire factory power break down and cannot obtain the reliable power for the factory use from outside, there is a need to install the spare steam water supply pump. When there are more than two electric water pumps, their power supply should use electricity from
different mother line of the power system.
9.8.2 给水泵系统的布置，备用给水泵的台数、容量和给水压力储备由电厂设计单位按设计规程确定。在锅炉安全阀全部启动时仍能满足锅炉供水的要求。
The arrangement of water supply pump system, number and capacity of spare water supply pumps, and the pressure reserve of water supply should be designed by the power plant designing department according to the design regulations. when the boiler safety valve is in full use it still could satisfy the boiler water supply request.
9.8.3给水泵值班人员操作处应有与该泵供水系统相连的所有锅炉运行值班人员联系的通讯设备。
The operation place of water supply pump attendant should have communication equipment which could communicate with all the boiler operation attendants who are in control of boilers related to the water supply pump system.
9.8.4燃油泵房或油、气燃料的集中控制地点与锅炉运行值班人员的操作地点应有信息联系设备。
Between the oil-firing pump house and the oil, gas fuel central control place and the boiler attendant's operation place should have the communication equipment.
