Method for controlling high-pressure water through high-pressure oil to achieve pressure maintaining and large-flow injection
A high-pressure water, large-flow technology, which is applied in the testing of fuel supply tank devices, fluid pressure actuating devices, and fluid pressure actuating systems, etc. Corrosion and leakage problems, the effect of fast electronic control response and simple control method
Pending Publication Date: 2022-04-01
BEIJING INST OF SPECIALIZED MACHINERY
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Problems solved by technology
Usually, the working pressure of the high-pressure water jet system is very high (up to 400MPa), but the flow rate of the jet is relatively small (generally less than 60L / min). When the jet flow rate is further increased, the control of the high-pressure water jet will become difficult , this is because the conventional high-pressure water jet system mainly realizes the opening and cutting of the high-pressure waterway through the hydraulic solenoid valve with cone seal or spherical seal. When the flow rate is passed, the diameter of the hydraulic solenoid valve needs to be significantly increased. After the diameter of the hydraulic solenoid valve becomes larger, the flow of high-pressure medium needs to increase the complicated pilot stage to realize the electromagnetic switch control, which will affect the response of the solenoid valve. In addition, the pilot stage water valve also faces problems such as corrosion and leakage
[0003] Therefore, the characteristics of easy corrosion and leakage of water medium, and the structural complexity of high-pressure and large-flow water pressure pilot control bring difficulties to the development of high-frequency response, high-pressure, and large-flow water pressure solenoid valves, which restricts high-pressure and large-flow water jets. Engineering Applications of Technology
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[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] Such as figure 1 As shown, the present invention provides a method for high-pressure oil to control high-pressure water to achieve pressure maintenance and large-flow injection. The method is realized by designing a device, which includes an inflation valve 1, an exhaust pressure relief valve 2, and an air pressure sensor 3. , pressure vessel 4, centrifugal pump 5, manual cut-off valve 6, water pressure sensor 7, integrated valve block 8, two-way cartridge valve core 9, O-ring 10, throttling damper 11, control cover plate 12, nozzle 13 , oil tank 14, oil suction filter 15, motor 16, hydraulic pump 17, one-way valve 18, electromagnetic overflow valve 19, first oil pressure sensor 20, three-position four-way elect...
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The invention relates to a method 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, sealing is reliable in the high-pressure water pressure maintaining process, and the electric control response speed is high in the high-pressure water spraying process; the control method is simple, and the problems of corrosion and leakage of the water medium large-drift-diameter valve can be effectively solved.
Description
technical field [0001] The invention belongs to the technical field of high-pressure water jets, and relates to engineering and test techniques for controlling the effective sealing and jetting of high-pressure and large-flow water media in pressure vessels, and in particular to a method for high-pressure oil to control high-pressure water to achieve pressure maintenance and large-flow injection. Background technique [0002] At present, high-pressure water jet technology is widely used in engineering fields such as industrial dirt cleaning, metal material cutting, material surface treatment and ship power propulsion. Usually, the working pressure of the high-pressure water jet system is very high (up to 400MPa), but the flow rate of the jet is relatively small (generally less than 60L / min). When the jet flow is further increased, the control of the high-pressure water jet will become difficult , this is because the conventional high-pressure water jet system mainly realizes...
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IPC IPC(8): F15B1/02F15B1/26F15B13/02F15B21/041F15B19/00
Inventor 张振华申文强杨凯强王飞李大让
Owner BEIJING INST OF SPECIALIZED MACHINERY