3.2.3 Heat utilisation 冷却系统
3.2.3.1 Intercooling system 混合端冷却系统(GK)
In the composite cooling system, the heat produced by the compression from burning a gas mixture in a waste gas turbocharger is transferred to one heat exchanger designed specially. The heat at the first stage (high temperature) is integrated in the engine’s cooling loop. The heat is removed at the second stage (low temperature) and passes the independent cooling loop because the temperature here is relatively low.
Mixing-end cooling system supply scope:
Radiator cooler 台式冷却器(GK)
The cooling liquid / air cooler are used for sending out the heat of the mixing cooling loop to the air. The cooling water is furnished with an antifreeze solution whose antifreeze agent content is 33%, including:
A water- air radiator panel
Galvanized steel plate jacket, with a ventilation duct and meeting the aerodynamic principle
Axial low noise, static and dynamic equilibrium, driven by a three-phase motor
The steel seat is used for horizontal installation
Cooling capacity 冷却功率 286 kW
Cooling water temperature (inlet/outlet) 冷却液温度（进/出46,2/42,0 °C
Cooling water volume flow 冷却液流量 65 m3/h
Pressure loss 压力损失* 500 mbar
Connections 连接* 100 / 10 DN / PN
Air inlet temperature 空气进气温度 35 °C
Sound pressure level at a distance of 10 m 噪音（10 米）* 65 dB(A)
Motor rating 电机功率* 20 × 1 kW
Voltage 电压 400 V
Weight 重量* 2500 kg
Dimensions approx. (L × W × H) 尺寸* 10000 × 2300 × 1000 mm
Cooling water pump 冷却液泵(GK)
The array design involves the one-step uniform-speed individual dry-type centrifugal pump, for the purpose of pipeline installation, with pressure circulation, with the shaft seal disregarding rotation directions, and with the impeller protected from cavitation erosion. The cooling water is designed to use an antifreeze solution whose antifreeze agent content is 33%.
Pressure head 扬程* 28 m
Cooling water volume flow 流量 65 m3/h
Connection 管道* 80 / 10 DN / PN
Motor rating 功率* 7,5 kW
Voltage 电压 400 V
Safety valve 安全阀(GK)
The diaphragm relief valve has independent fixed sealing and can use a rotating handle for ventilation. Its housing is made of hot-pressed brass and red metal, its protruding cap is made of zinc and hot-pressed brass or cast brass, its inside is of structural steel Ms 58, its diaphragm and sealing uses infusible and non-aging rubber, and its spring is made of stainless steel.
Installed position 安装位置 Main axle vertical, inlet connection at the bottom 竖直安装，自带接头
Response overpressure 设置压力 3 bar
Operating temperature 操作温度 max. 50 °C
Vent valve 排气阀(GK)
Maximum temperature 最大温度 120 °C
Maximum pressure 最大压力 10 bar
Connection size 连接尺寸 G
Low-water control unit (GK) {LSA- 308}水位控制单元
The water level limiter, with a glass float and through magnetic transmission, sends the movement of the float to one micro-switch.
Protection type 防护等级 65 IP
Micro switch 微型开关 Single-pole change-over contact
Max. operating overpressure 最大操作过压 10 bar
Max. operating temperature 最大操作温度 120 °C
Installed position 安装位置 Main axle vertical 主轴垂直
Three-way valve 三通阀(GK)
The three-way valve with an actuator is designed as a pressure valve
Control valve 控制阀
For the maintenance-free soft-seal heat-control valve, the jacket is made of GG-25, with the three-way valve structure, and the slender rod is made of 1.4571 steel, fastened and sealed. Connections 连接* 80 / 16 DN / PN
Actuating drive 执行驱动
Electric drive, 5kn , working temperature - 20°C to +70°C, protection grade IP65, mechanical operation indication, manual adjustment
Motor voltage frequency 400/50 V/Hz
Capacity x VA
Expansion vessel 膨胀水箱(GK)
The diaphragm expansion tank is made as per DIN 4807 standards and accords with EU pressure design specification 97/23/EC, with external coating. The diaphragm shall not be replaced.
Nominal volume 额定流量 200 litres
Permissible flow temperature – plant 允许温度 120 °C
Permissible operating temperature membrane 允许膈膜工作温度 70 °C
Permissible operating overpressure 允许操作过压 3 bar
Primary gas pressure preset at factory 工厂允许压力 1.5 bar
Connection* 连接 1" R
Throttle valve 节流阀(GK)
The soft sealing with EPDM arrangement, withstanding 120°C, saw-tooth positioning, stainless steel core, GGG-40cast iron housing
Connections 连接* 80 / 10 DN / PN
Differential pressure monitor for flow control 压差表(GK) {PDSA- 309}
The pressure difference measurement and the switch device, with high-strength moving valves and attenuation valves; the measuring unit is made of steel 1.4310; the surface has been treated, with a micro-switch (Single-pole transfer contacts)
Measurement range 测量范围 0 to 0.6 bar
Max. static operating pressure 最大静态操作压力 10 bar
Permissible ambient temperature 允许环境温度 -10 to 70 °C
Permissible medium temperature 允许介质温度 70 °C
Protection type 防护等级 54 IP
Pressure connection (olive type fitting) 连接管直径 12 mm
Differential pressure switch value (preset) 设定值 80 mbar
Temperature sensor {TIC 405} 温度传感器
The integrative P100 and transmitter are made of 1.4571 steel and are particularly designed by the DEUTZ Energy System Company
Operating voltage 操作电压 10 to 36 VDC
Output (imposed current) 输出 4 to 20 mA
Permissible operating temperature 允许工作温度 -20 to 85 °C
Screw-in thread 螺纹 G
Fitting length* 安装长度 210 mm
3.2.3 Heat utilisation 冷却系统
3.2.3.1 Intercooling system 混合端冷却系统(GK)
在混合冷却系统中，燃烧混合气体在废气涡轮增压器中压缩产生的热量被传输到一个经过特殊设计的热交换器中。第一阶段（高温）集成在发动机冷却回路中。热量在第二阶段（低温）去除，经过独立的冷却回路，因为这里的温度较低。
混合端冷却系统供货范围：
Radiator cooler 台式冷却器(GK)
冷却液/空气冷却器用来散发混合冷却回路中的热量到空气中，设计为冷却水配有防冻剂含量33％防冻液，包括：
水－空散热器组
镀锌钢板外套，带有通风管道和满足空气动力原理
轴向低噪音，静态，动态平衡，由三相电机驱动
钢座用于水平安装
Cooling capacity 冷却功率 286 kW
Cooling water temperature (inlet/outlet) 冷却液温度（进/出46,2/42,0 °C
Cooling water volume flow 冷却液流量 65 m3/h
Pressure loss 压力损失* 500 mbar
Connections 连接* 100 / 10 DN / PN
Air inlet temperature 空气进气温度 35 °C
Sound pressure level at a distance of 10 m 噪音（10 米）* 65 dB(A)
Motor rating 电机功率* 20 × 1 kW
Voltage 电压 400 V
Weight 重量* 2500 kg
Dimensions approx. (L × W × H) 尺寸* 10000 × 2300 × 1000 mm
Cooling water pump 冷却液泵(GK)
整列设计一步匀速单机干式离心泵，为管道安装设计，带压力环流，轴封不分转动方向，叶轮防穴蚀。设计成冷却水满足使用防冻剂含量33％防冻液。
Pressure head 扬程* 28 m
Cooling water volume flow 流量 65 m3/h
Connection 管道* 80 / 10 DN / PN
Motor rating 功率* 7,5 kW
Voltage 电压 400 V
Safety valve 安全阀(GK)
膜片安全阀带有独立的固定密封，可以经过旋转手柄通气，外壳用热压缩黄铜和红铜制造，凸起帽采用锌和热压黄铜或铸造黄铜，内部由结构钢Ms 58，膜片和密封采用难熔和不老化橡胶材料，弹簧由不锈钢制造。
Installed position 安装位置 Main axle vertical, inlet connection at the bottom 竖直安装，自带接头
Response overpressure 设置压力 3 bar
Operating temperature 操作温度 max. 50 °C
Vent valve 排气阀(GK)
压缩黄铜通风，带有全密封设备和相应的关断阀
Maximum temperature 最大温度 120 °C
Maximum pressure 最大压力 10 bar
Connection size 连接尺寸 G
Low-water control unit (GK) {LSA- 308}水位控制单元
水位限制器，带有玻璃漂浮，通过磁性传输，把漂浮的运动输送到一个微动开关
Protection type 防护等级 65 IP
Micro switch 微型开关 Single-pole change-over contact
Max. operating overpressure 最大操作过压 10 bar
Max. operating temperature 最大操作温度 120 °C
Installed position 安装位置 Main axle vertical 主轴垂直
Three-way valve 三通阀(GK)
自带执行器的三通阀，设计为压力阀
Control valve 控制阀
免维护软封热控阀，外套由GG-25 制成，3 路阀结构，细杆由1.4571 钢制成，紧固密封
Connections 连接* 80 / 16 DN / PN
Actuating drive 执行驱动
电动执行驱动，5kn，工作温度-20°C to +70°C，保护等级IP65，机械运行指示，手动调节
电机电压频率 400/50 V/Hz
容量 x VA
Expansion vessel 膨胀水箱(GK)
膈膜膨胀水箱，依据DIN 4807 标注制造，符合EU 压力设计规范97/23/EC ，外涂层，膜片不可换
Nominal volume 额定流量 200 litres
Permissible flow temperature – plant 允许温度 120 °C
Permissible operating temperature membrane 允许膈膜工作温度 70 °C
Permissible operating overpressure 允许操作过压 3 bar
Primary gas pressure preset at factory 工厂允许压力 1.5 bar
Connection* 连接 1" R
Throttle valve 节流阀(GK)
带EPDM 排列耐120°C 的软密封，锯齿定位，不锈钢芯，GGG-40 铸铁外壳
Connections 连接* 80 / 10 DN / PN
Differential pressure monitor for flow control 压差表(GK) {PDSA- 309}
压差测量和开关装置，带高强度运动阀门和衰减阀，测量单元钢制1.4310，表明经过处理，带有微型开关（单极转换触点）
Measurement range 测量范围 0 to 0.6 bar
Max. static operating pressure 最大静态操作压力 10 bar
Permissible ambient temperature 允许环境温度 -10 to 70 °C
Permissible medium temperature 允许介质温度 70 °C
Protection type 防护等级 54 IP
Pressure connection (olive type fitting) 连接管直径 12 mm
Differential pressure switch value (preset) 设定值 80 mbar
Temperature sensor {TIC 405} 温度传感器
P100 和变送器一体，由1.4571 钢制成，道依茨能源系统公司专门设计
Operating voltage 操作电压 10 to 36 VDC
Output (imposed current) 输出 4 to 20 mA
Permissible operating temperature 允许工作温度 -20 to 85 °C
Screw-in thread 螺纹 G
Fitting length* 安装长度 210 mm
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