保定市灌浆泵厂

目前，在地铁、隧道、水利等注浆工程中广泛使用的是电动往复式变量注浆泵，该电动泵为曲轴往复式活塞（柱塞）泵，使用机械变档，输出端装有卸压安全阀。其特点：可以通过改变档位变量输出浆液，机手可根据注浆工艺要求选择不同的流量与压力。其缺点是：注浆时，当大流量档位注浆出现压力升高时，因不能及时停机换挡造成电动机超负载工作、机械零部件易损等故障。

At present, the electric reciprocating variable grouting pump is widely used in the subway, tunnel, water conservancy and other grouting projects. The electric pump is a crankshaft reciprocating piston (Zhu Sai) pump, using mechanical gear shift, and the output end is equipped with pressure relief valve. Its characteristics are that the slurry can be output by changing the stall variables, and the machine can select different flow and pressure according to the grouting process requirements. Its shortcomings are: when grouting, when the pressure of large flow profile grouting increases, it can not stop in time to cause the motor overload, mechanical parts easily damaged and so on.

而液压注浆泵由于其特性，弥补了这一缺陷，目前，现有的液压注浆泵在液压回路中配有蓄能器、溢流阀等部件，改进了因电动泵高压时的强脉冲对压力表造成的损坏以及安全阀常见的故障问题。

The hydraulic grouting pump has made up this defect because of its characteristics. At present, the existing hydraulic grouting pump is equipped with accumulator and overflow valve in the hydraulic loop, which improves the damage caused by the strong pulse to the pressure gauge and the common fault of the safety valve.

但是，现有的液压注浆泵也有其不足之处，就是不能手动设定与注浆工艺所需求的注浆流量与压力，而这类问题却始终困扰着一线操作机手。

However, the existing hydraulic grouting pump also has its shortcomings, which can not be manually set and grouting process demand of the grouting flow and pressure, and this kind of problem has always plagued the front-line operating machine hands.

改进型的液压注浆泵，则是一种新型的液压双液注浆泵，其流量控制的工作原理是：采用流量控制阀在液压回路中控制流量，达到控制执行元件（液压缸）的运动速度使泵的输出量发生变化，来改变泵的注浆流量；同时无极调速，不受档位限制，这一技术的应用使得该泵结合电动泵与现有液压泵的长处，能更准确的完成操作机手的工作要求。

The improved hydraulic grouting pump is a new type of hydraulic double liquid grouting pump. The principle of the flow control is to control the flow rate by the flow control valve in the hydraulic circuit, to control the movement speed of the actuator (hydraulic cylinder) to change the output of the pump, and to change the flow rate of the pump; at the same time, no pole adjustment is made. The application of this technology makes the pump combined with the advantages of the electric pump and the existing hydraulic pump, which can more accurately complete the operating requirements of the operating machine hand.

改进型的液压注浆泵的两套吸浆及出浆部分采用并联设计，安装在泵的同一侧，与液压缸相连，工作时同步进行。使得泵在双液注浆时特别是在注化学浆时，更加符合注浆工艺的要求。

The two sets of slurry suction and discharge parts of the improved hydraulic grouting pump are designed in parallel, installed on the same side of the pump and connected to the hydraulic cylinder, and work synchronously. This makes the pump more suitable for grouting process when it is injected in double liquid, especially when chemical pulp is injected.

改进型的液压注浆泵的液压油冷却相对于水冷采用风冷却器，这一设计使泵不受水源影响，使用方便，适应特殊工况的施工。

The hydraulic oil cooling of the improved hydraulic grouting pump adopts wind cooler compared with water cooling. This design makes the pump not affected by the water source. It is convenient to use and adapt to the construction of special working conditions.

其它部分则保留了传统液压泵的长处，如：液压溢流阀卸压，能准确设定压力参数卸压，不受外部环境影响，安全可靠。液压系统中的蓄能器能有效吸收换向阀换向产生强脉冲，缓解因脉冲对液压系统产生的不利影响，特别是对压力表的影响，有效地保护了压力表。

Other parts retain the advantages of the traditional hydraulic pump, such as hydraulic relief valve pressure relief, can accurately set pressure parameters unload pressure, not affected by the external environment, safe and reliable. The accumulator in the hydraulic system can effectively absorb the reversing valve to produce strong pulses, alleviate the adverse effects on the hydraulic system caused by the pulse, especially the influence on the pressure gauge, and effectively protect the pressure gauge.

综上所述，改进型双液液压注浆泵，可单液注浆、亦可双液注浆；可用于注水泥浆、亦可注化学浆。流量无极控制更能满足各类工程注浆工艺的需要，操作简便、安全可靠。

To sum up, the improved double fluid hydraulic grouting pump can be used for single liquid grouting or double liquid grouting. It can be used for water injection slurry or chemical pulp injection. The flow control can satisfy the needs of various engineering grouting processes, and is easy to operate, safe and reliable.

与电动泵相比故障率低、维护成本低，体积小、重量轻，便于施工转场；与现有的液压注浆泵相比，能够适应特性的工况环境、更加准确的执行技术人员的施工要求。

Compared with the existing hydraulic grouting pump, compared with the existing hydraulic grouting pump, it is able to adapt to the characteristics of the working conditions and more accurately carry out the construction requirements of the technical personnel.