The first domestic equipment with a 250-mm-diameter two-way cartridge valve developed by China Shipbuilding Industry Corporation's 701 Haiyue Company was used as a liquid return control valve unit project. The actual performance of the equipment was good. Recently, the device successfully passed user acceptance.
The successful development of the fluid return control valve group project was based on the fact that 704 Haiyue Company succeeded in developing the hydraulic hoist system project for the world's largest shiplock, the Three Gorges Project Ship Lock, in the Three Gorges Project. Valves and large-scale integrated control technologies are another successful practice for the research and development of large and medium-sized electrohydraulic control systems.
The flushing return control valve group adopts a 250 mm two-way cartridge valve that is twice the diameter of the 125 mm diameter in the hydraulic hoist system of the Three Gorges permanent ship locks, and controls the pressure, flow and direction of the oil through leverage. The forging hammer is reciprocated for free fall and vertical lifting movement to realize the forging action. As one of the key equipment for the development and installation of a 3,000-ton hydraulic block forging machine for the Liaoyang Heavy Industry Group, the Flush Return Control Valve Group project has high technical requirements, fast response, and high degree of integration, and exceeds 80 mm. Very few domestic manufacturers are qualified for the development of the valve group. Previously this kind of equipment has been dependent on imports.
The 704 hydraulics have a long history. As early as 1980, the Institute developed and produced the first two-way cartridge valve. The hydraulic hoist system of the Three Gorges Permanent Ship Lock was developed after the 704 Haiyue Company successfully won the bid. At present, the system has been operating normally for 1865 days.
In early 2007, Haiyue Company undertook the task of localization of Liaoyang Heavy Industry Group's supporting equipment and developed two sets of flushing return control valves. This means that after 3 months, the first set of equipment must be delivered, and under normal circumstances it will take one and a half months to produce a common 125 mm two-way cartridge valve. As the first equipment to use the 250 mm two-way cartridge valve, the device has no physical and data in the industry can refer to reference, time is tight, heavy tasks, high technical requirements. Haiyue Company mobilized outstanding science and technology and management personnel as well as hydraulic system manufacturing and debugging personnel with rich engineering experience and fully invested in the development of the project. The design, process and production departments are closely cooperating. From ordering, procurement to inspection, every link is meticulous, strives for perfection, and finally overcomes key technologies, so that all the two sets of equipment are delivered on time and acceptance is successful. At the same time, the 701 two-way cartridge valve device has also formed a full range of supporting patterns.
The successful development of the fluid return control valve group project was based on the fact that 704 Haiyue Company succeeded in developing the hydraulic hoist system project for the world's largest shiplock, the Three Gorges Project Ship Lock, in the Three Gorges Project. Valves and large-scale integrated control technologies are another successful practice for the research and development of large and medium-sized electrohydraulic control systems.
The flushing return control valve group adopts a 250 mm two-way cartridge valve that is twice the diameter of the 125 mm diameter in the hydraulic hoist system of the Three Gorges permanent ship locks, and controls the pressure, flow and direction of the oil through leverage. The forging hammer is reciprocated for free fall and vertical lifting movement to realize the forging action. As one of the key equipment for the development and installation of a 3,000-ton hydraulic block forging machine for the Liaoyang Heavy Industry Group, the Flush Return Control Valve Group project has high technical requirements, fast response, and high degree of integration, and exceeds 80 mm. Very few domestic manufacturers are qualified for the development of the valve group. Previously this kind of equipment has been dependent on imports.
The 704 hydraulics have a long history. As early as 1980, the Institute developed and produced the first two-way cartridge valve. The hydraulic hoist system of the Three Gorges Permanent Ship Lock was developed after the 704 Haiyue Company successfully won the bid. At present, the system has been operating normally for 1865 days.
In early 2007, Haiyue Company undertook the task of localization of Liaoyang Heavy Industry Group's supporting equipment and developed two sets of flushing return control valves. This means that after 3 months, the first set of equipment must be delivered, and under normal circumstances it will take one and a half months to produce a common 125 mm two-way cartridge valve. As the first equipment to use the 250 mm two-way cartridge valve, the device has no physical and data in the industry can refer to reference, time is tight, heavy tasks, high technical requirements. Haiyue Company mobilized outstanding science and technology and management personnel as well as hydraulic system manufacturing and debugging personnel with rich engineering experience and fully invested in the development of the project. The design, process and production departments are closely cooperating. From ordering, procurement to inspection, every link is meticulous, strives for perfection, and finally overcomes key technologies, so that all the two sets of equipment are delivered on time and acceptance is successful. At the same time, the 701 two-way cartridge valve device has also formed a full range of supporting patterns.
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