A method of using a three-way regulating valve in closed circulation cooling water of an aluminum strip casting and rolling mill
A technology of three-way regulating valve and circulating cooling water, which is applied in the field of non-ferrous metal processing, can solve the problems of complex structures of electric actuators and pneumatic actuators, relatively high processing accuracy requirements, and a large number of parts, so as to facilitate installation and disassembly Maintenance and production cost reduction, simple structure effect
Active Publication Date: 2016-01-20
CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
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Problems solved by technology
[0004] Regardless of whether it is an electric control valve or a pneumatic control valve, the valve body is made of castings, the valve body is relatively large in size, the valve core and valve seat are paired and ground, and a special sealing form is adopted. The processing accuracy is relatively high, and the electric actuator and The structure of the pneumatic actuator is complex, the number of parts is large, and the size is large. It needs to reserve a lot of space for installation, disassembly and maintenance. In addition, the electronic positioner and the electric-pneumatic valve positioner are relatively precise and complex control components. Higher cost and shorter service life
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[0026] The invention relates to a method for using a three-way regulating valve in closed circulation cooling water of an aluminum strip casting and rolling mill. The method includes both the structural design of the three-way regulating valve and the specific use of the three-way regulating valve. borrowed figure 1 The closed circulation cooling water system shown.
[0027] combine Figure 4 , in addition to containing the cooling device 1, the standby motor pump 3, the main motor pump 4, the lower casting roll 5, and the upper casting roll 6, the closed circulation cooling water system also contains a pneumatic proportional pressure reducing valve 21 and a three-way regulating valve 22 .
[0028] combine Figure 2-3 , Three-way regulating valve 22 includes screw 7, washer 8, left end cover 9, compression spring 10, valve body 11, O-ring 13, valve core 14, upper flange 16, right end cover 19 and lower flange 20.
[0029] The valve core 14 is equipped with a left piston ri...
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Provided is a method for using a three-way control valve in closed circulation cooling water of an aluminum strip casting and rolling machine. A closed circulation cooling water system comprises a cooling device (1), a backup motor pump (3), a main motor pump (4), a lower casting and rolling roller (5) and an upper casting and rolling roller (6) and further comprises a pneumatic proportional pressure reducing valve (21) and the three-way control valve (22). The three-way control valve (22) comprises screws (7), a gasket (8), a left end cover (9), a compression spring (10), a valve body (11), an O-shaped sealing ring (13), a valve element (14), an upper flange (16), a right end cover (19) and a lower flange (20). The three-way control valve acts on the valve element through compressed air brought by the pneumatic proportional pressure reducing valve, an electric actuating mechanism or a pneumatic actuating mechanism in an original three-way control valve is omitted, the number of parts of the three-way control valve is greatly reduced, machining and assembling are easier, cost is lowered, the boundary dimension is reduced, and the three-way control valve can be mounted, demounted and maintained easily.
Description
technical field [0001] The invention belongs to the technical field of nonferrous metal processing, in particular to a method for using a three-way regulating valve in closed circulation cooling water of an aluminum strip casting and rolling mill. Background technique [0002] combine figure 1 , the closed circulation cooling water system in the aluminum strip casting mill is an important auxiliary equipment in the aluminum strip casting mill. It is mainly used to control the temperature of the upper and lower casting rolls, mainly including cooling device 1, three-way diverter valve 2, spare Motor pump 3, main motor pump 4, lower casting roll 5 and upper casting roll 6, etc. The three-way diverter valve 2 is an important part of the closed circulation cooling water system, and the main motor pump 4 or standby motor pump 3 sends the cooling water to Enter the upper casting roll 6 and the lower casting roll 5. After cooling the rolls, the high-temperature water enters the wa...
Claims
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IPC IPC(8): B22D11/06B22D11/124
Inventor 许小丰
Owner CHINA NON-FERROUS METALS PROCESSING TECH CO LTD