Device for controlling high-pressure water through high-pressure oil to achieve pressure maintaining and large-flow injection

The invention relates to a device for controlling high-pressure water through high-pressure oil to achieve pressure maintaining and large-flow injection, and belongs to the technical field of high-pressure water jet. A high-pressure oil pressure loop is adopted as a pilot control loop of the high-pressure large-flow water pressure cartridge valve, so that sealing is reliable in the high-pressure water pressure maintaining process, and the electric control response speed is high in the high-pressure water injection process; the control mode is simple, the problems of corrosion and leakage of the water medium large-drift-diameter valve can be effectively solved, and the water medium large-drift-diameter valve has the advantages of being simple in structure, convenient to install and maintain, low in use cost and the like. 本发明涉及一种高压油控制高压水实现保压和大流量喷射的装置，属于高压水射流技术领域。本发明采用高压油压回路作为高压大流量水压插装阀的先导控制回路，使高压水保压过程密封可靠，高压水喷射过程中电控响应速度快；控制方式简单，且能够有效避免水介质大通径阀的腐蚀和泄漏问题，具有结构简单、安装维护方便、使用成本低等优点。