5.2.3.2. Ventilating System
1、Air intake of the side of the generator in the container and air exhaust above the control chamber: For the air intake, 4 7.5KW air blowers shall be used, and for the air exhaust, 3 7.5KW air blowers shall be used, with the total air intake amount being greater than 110,000 cubic meters per hour, so as to meet the requirements for the generating set to be ventilated and dispel heat.
2、The air inlet shall be on the top of the container, and a rain-proof cover shall be installed. For the air intake, Grade F5 bag-type filters with the dimensions of 595*595*500mm shall be adopted, the individual air intake amount shall be 3,500 cubic meters per hour, and a total of 30 filters shall be used. An air intake filter shall have a maintenance indicator and a pressure difference display.
3、The air inlet shall have an air return pipe. When the temperature is lower than 10 ℃, the air return control valve shall be opened automatically so as to raise the air intake temperature.
4、The air intake and exhaust passageways shall have silencers whose assembly may be dismantled, and the air exhaust outlet shall have a network for the protection against insects and have a louver. The length of the silencer passageway for air intake and exhaust shall be 1.5 meters, with the interval of 100mm. The actual area for air intake and exhaust shall be 3.5㎡, which can make the outbound engine noise reduced by more than 45 decibels.
5、 The blower for air intake and exhaust shall use frequency conversion control, and the ABB frequency converter shall be adopted to control a ventilating amount. The rotational speed and the air valve opening degree of a blower for air intake and exhaust shall be automatically controlled by the indoor temperature.
5.2.3.3. Cooling Water System
1、The container top shall be equipped with a jacket water desk-top cooler and an inter-cooling water desk-top cooler, which are fixed with bolts. A cooler blower shall involve frequency conversion control. Hosepipe with shock attenuation shall be installed at the inlet and outlet of a cooler and shall be connected with the engine. Between a cooler and the engines, a manual butterfly valve shall be installed.
2、The cooling water pipe shall be joined as per the PID drawings offered by MWM and according to the relevant requirements.
3、After all the water pipes are welded, the water pressure shall be tested, with the test pressure being 1.5 times the using pressure. Keeping the pressure without leakage for 30 minutes will be qualified.
4、All the water pipes may be dismantled during transport and maintenance, and the supports shall be firm and shall comply with MWM requirements.
5、 The pipeline shall reserve a jacket-water waste-heat utilization interface.
5.2.3.4. Exhaust System
1、An exhaust silencer shall be placed on the top of the control chamber and of horizontal installation, and shall be propped up firmly with steel supports so that the exhaust silencer noise reduction effect can be more than 55 decibels.
2、An exhaust silencer and exhaust pipe shall be made of #304 stainless steel, the diameter of the 2 machine-leaving exhaust pipes shall be 323mm, and the diameter of the main pipe shall be 700mm.
3、The exhaust pipes in the container may be dismantled for easy maintenance.
4、The heat insulation of the exhaust pipe in the container shall use detachable fireproof heat-insulating cover to facilitate maintenance. The heat insulation of the outside exhaust pipe shall use glass wool and shall be wrapped with galvanized plate.
5、The exhaust pipe shall have two outlets, and through three-way pneumatic valve control, make exhaust gas sent to a silencer or a waste heat boiler. There shall be expansion joints between the exhaust pipe and waste heat boiler.
6、The exhaust gas outlet shall be about 12 meters from the ground and equipped with a rainproof cap. The lowest part of the exhaust silencer shall have a water outlet. Various probes shall be installed and interfaces shall be reserved on the exhaust pipe as per PID drawings.
5.2.3.2通风系统
1、集装箱发电机侧进风，控制室上方排风。进风采用4台7.5KW风机，排风采用3台7.5KW风机，总进风量大于110000立方米/小时。满足机组通风散热的要求。
2、进风口设在集装箱顶，安装防雨罩。进风采用F5级袋式滤器，尺寸为595*595*500mm，单个进风量为3500立方米/小时，共用30个。进风过滤器设有保养指示器和压差显示器。
3、进风口设回风管，在气温低于10℃时自动开启回风控制风阀，提高进风温度。
4、在进、排风通道上设消音器，消音器组件可以拆卸，排风口设防虫网和百叶窗。进排风消音通道长度为1.5米，间距100mm，实际进排风面积为3.5㎡。可使外传的发动机噪音降低45分贝以上。
5、进排风风机变频控制，采用ABB变频器，以控制通风量。进排风风机的转速和风阀开度由室内温度自动控制。
5.2.3.3冷却水系统
1、集装箱顶放置缸套水台式冷却器和中冷水台式冷却器，螺栓固定。冷却器风机采用变频控制。冷却器进、出口安装减震软管，再与发动机连接。冷却器与发动机之间要安装手动蝶阀。
2、冷却水管根据MWM提供的PID图和相关要求进行连接。
3、所有水管焊接完毕后需进行水压试验，试验压力为使用压力1.5倍。保压30分钟无泄漏为合格。
4、所有水管都可以在运输和维修时拆卸开，支架需牢固，符合MWM要求。
5、管道预留缸套水余热利用接口。
5.2.3.4排气系统
1、排气消音器放在控制室顶，卧式安装，用钢构支架牢固支撑。排气消音器降噪效果可达55分贝以上。
2、排气消音器及排气管用304不锈钢制作，出机排气管两条直径323mm，总管直径700mm。
3、集装箱内的排气管可以拆卸，以方便维修。
4、集装箱内排气管保温采用可拆卸式防火隔热套，方便维修。外部排气管保温采用玻璃棉，外包镀锌板。
5、排气管采用两路出口，通过三通气动阀控制，使烟气可以通至消音器或余热锅炉。排气管至余热锅炉间设膨胀节。
6、烟气出口立地面约12米，安装防雨帽，排气消音器最低处设排水口，排气管上按PID图安装各类探头及预留接口。
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