自上料搅拌机的水路系统主要由压力水箱、输水管、球阀、夹布胶管等零件组成。当搅拌车卸完料需要清洗时，打开气控箱往水箱内充气加压，加压完毕后打开车辆尾部出料口附近的球阀，分点清洗搅拌车。自上料搅拌机水路清洗系统存在什么问题？

The waterway system of the self feeding mixer is mainly composed of pressure water tank, water delivery pipe, ball valve, cloth clamping hose and other parts. When the mixer needs to be cleaned after unloading, open the air control box to inflate and pressurize the water tank. After pressurization, open the ball valve near the outlet at the rear of the vehicle to clean the mixer in different points. What is the problem with the waterway cleaning system of the self feeding mixer?

（1）目前混凝土搅拌车气控箱上的压力表只有在水箱清洗时才能显示水箱内的压力，在加水和关闭状态均不能显示水箱内的压力。为了便于实时观察水箱内的压力变化，可以在水箱上部新增测压口，并将压力表集成在现有气控箱上。通过新增的压力表可以在减压阀及阀均出现故障时及时发现水箱内的压力变化。

(1) At present, the pressure gauge on the air control box of the concrete mixer can only display the pressure in the water tank when the water tank is cleaned, and cannot display the pressure in the water tank when adding water or when it is closed. In order to observe the pressure change in the water tank in real time, a pressure tap can be added on the upper part of the water tank, and the pressure gauge can be integrated on the existing pneumatic control box. The new pressure gauge can detect the pressure change in the water tank in time when the pressure reducing valve and the safety valve fail.

（2）气控箱直接从底盘气瓶取力，如果驾驶员忘记关闭气控箱和放水阀，在车辆行驶过程中气控箱会一直给水箱充气，可能造成车辆行车制动时压力异常下降，存在隐患。为了避免这种隐患，可以在气控箱和底盘气瓶之间安装一个球阀，在车辆行驶过程中关闭该球阀，需要往水箱内充气时开启该球阀。

(2) The air control box takes power directly from the chassis gas cylinder. If the driver forgets to close the air control box and the drain valve, the air control box will always inflate the water tank during the vehicle driving, which may cause an abnormal drop in the pressure when the vehicle is braking, and there is a potential safety hazard. In order to avoid this potential safety hazard, a ball valve can be installed between the air control box and the chassis cylinder, which can be closed when the vehicle is running, and opened when it is necessary to inflate the water tank.

由于自上料搅拌机的特殊使用工况，水路清洗系筒的稳定性和便捷操作性能显得非常重要。目前自上料搅拌机大都采用的气压式水路清洗系统操作方便，相比水泵式清洗系统成本较低，故障点数量也降低。

Due to the special working condition of self feeding mixer, the stability and convenient operation performance of waterway cleaning system are very important. At present, the pneumatic waterway cleaning system, which is widely used in self feeding mixers, is easy to operate. Compared with the pump type cleaning system, the cost is lower, and the number of failure points is also reduced.

调节水箱内部气压的减压阀压力通常设定为0.4MPa，水箱上阀的压力设定为0.5MPa，需要定期检查减压阀和阀的使用情况，避免由于减压阀和压力阀失效造成水路系统压力过大引起的气管、水管的爆破现象。

The pressure of the pressure reducing valve regulating the air pressure inside the water tank is usually set to 0.4 MPa, and the pressure of the safety valve on the water tank is set to 0.5 MPa. The use of the pressure reducing valve and the safety valve needs to be checked regularly to avoid the explosion of the air pipe and water pipe caused by the excessive pressure of the water system due to the failure of the pressure reducing valve and the pressure valve.

由于要清洗的部位较多，搅拌车清洗水路多采用多点同时清理的办法，提高操作人员的工作效率。在水路清洗系统末端有一段一进四出水管可实现水流分流，四个球阀分别控制清洗四个部位，其中一个球阀控制的水流可以手持移动，用于清洗车辆两侧飞溅出来的混凝土，也可以进行洗车。更多内容就来我们网站https://www.zishangliaojiaobanji.cn咨询吧！

Due to the large number of parts to be cleaned, the method of multi-point simultaneous cleaning is adopted for the mixing truck cleaning waterways to improve the working efficiency of operators. At the end of the waterway cleaning system, there is a section of one inlet and four outlet pipes to realize water flow diversion. The four ball valves respectively control the cleaning of four parts. The water flow controlled by one of the ball valves can be moved by hand to wash the concrete splashed from both sides of the vehicle, or the vehicle can be washed. More on our website https://www.zishangliaojiaobanji.cn Consult!