CN205732863U - A kind of aluminium casting-rolling mill automatic cooling water control system - Google Patents
A kind of aluminium casting-rolling mill automatic cooling water control system Download PDFInfo
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- CN205732863U CN205732863U CN201620378958.9U CN201620378958U CN205732863U CN 205732863 U CN205732863 U CN 205732863U CN 201620378958 U CN201620378958 U CN 201620378958U CN 205732863 U CN205732863 U CN 205732863U
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Abstract
The utility model discloses a kind of aluminium casting-rolling mill automatic cooling water control system, the outlet pipe of chiller is connected to the water inlet of two Casting Rollers by three-way control valve and threeway tube head, the water pipe between the water inlet of threeway tube head and two Casting Rollers is drawn water pipe respectively and connects temperature sensor and pressure transducer；The outlet of two Casting Rollers connects water pump by flow transducer respectively, and water pump is connected on another water inlet end of three-way control valve and the return pipe of chiller；Draw water pipe on water pipe between flow transducer and the water inlet end of water pump respectively to be connected on the 3rd temperature sensor and pressure transducer；The information output of temperature sensor, pressure transducer and flow transducer is connected to each information input terminal of PLC control system, and each information output of PLC control system is connected to the information input terminal of three-way control valve and frequency conversion motor.This utility model can either accurately control discharge, can accurately control again water temperature, and even regulation water temperature.
Description
Technical field
This utility model relates to a kind of aluminium casting-rolling mill automatic cooling water control system.
Background technology
Casting and rolling machine is the first operation of aluminum processing, and it is the equipment that aluminum becomes solid-state aluminium sheet from liquid, and aluminum liquid enters from one end of roll, through two rolls preseting roll gap, is exactly out the aluminium sheet of molding.Owing to the temperature of aluminum liquid is more than 660 DEG C, in order to enable to become liquid solid-state aluminium sheet, needing to lower the temperature aluminum liquid, existing cool-down method is to recirculated cooling water logical in roll, this method is only capable of the flow controlling recirculated cooling water, take away the heat in roll, it is impossible to enough controlling water temperature, the most once fluctuation occurs in water temperature, it is possible to cause aluminum liquid successfully to cool down, cause aluminum liquid to outflow, or because the roll intake-outlet temperature difference is too big, cause the badly damaged of equipment.
Summary of the invention
This utility model purpose is to solve the above-mentioned problems in the prior art, it is provided that one can either accurately control discharge, can accurately control again the aluminium casting-rolling mill automatic cooling water control system of water temperature.
For achieving the above object, the technical solution that this utility model uses is: a kind of aluminium casting-rolling mill automatic cooling water control system, it includes chiller, three-way control valve, the frequency conversion motor water pump driven, temperature sensor, pressure transducer, flow transducer and PLC control system；The outlet pipe of chiller is connected to the water inlet end of three-way control valve, the water side of three-way control valve is connected to the water inlet of two Casting Rollers by water pipe and threeway tube head, the water pipe between the water inlet of threeway tube head and two Casting Rollers is drawn water pipe respectively and is connected on temperature sensor and pressure transducer；The outlet of two Casting Rollers is respectively by the water inlet end of water pipe connection traffic sensor, the water side of flow transducer is connected to the water inlet end of water pump by water pipe, and the water side of water pump is by being connected on another water inlet end of three-way control valve and the return pipe of chilled water unit after water pipe and another threeway tube head；Draw water pipe on water pipe between flow transducer and the water inlet end of water pump respectively to be connected on the 3rd temperature sensor and the 3rd pressure transducer；The information output of three temperature sensors, three pressure transducers and flow transducer is connected to each information input terminal of PLC control system, each information output of PLC control system is connected to the signal input part of three-way control valve and the information input terminal of frequency conversion motor, controls unlatching size and closedown, the power of frequency conversion motor of each path of three-way control valve.
Three-way control valve described above is gas control three-way control valve.
This utility model also includes manual modulation valve, and manual modulation valve is arranged in parallel with three-way control valve.When three-way control valve breaks down maintenance and replacing, remain to keep the supply of cooling water.
This utility model also includes filter, and filter is arranged on the water pipe between the water side of three-way control valve and threeway tube head.
This utility model feeds back to the data of PLC control system by flow transducer and regulates the rotating speed of water pump thus reach the purpose of regulating water flow, another purpose is then that once the loss of water is too much in pipeline, reminds the circulating cooling system for Casting Roller to carry out moisturizing in time.Inlet end and water outlet end at two Casting Rollers are respectively mounted temperature sensor；The inlet end of two Casting Rollers and the initial temperature differences of water outlet end and the operating pressure of minimum is set, it is ensured that the minimum frequency of operation of water pump in PLC control system.When the temperature difference of inlet end and water outlet end keeps initial temperature differences, another water inlet of three-way control valve connects with outlet, and under the effect of water pump, the cooling water of backflow is delivered directly to the inlet end of Casting Roller and recycles；The inlet end of Casting Roller and each temperature sensor automatic detection for temperature numerical value of water outlet end, when two ends temperature gap increases, then PLC control system controls pump variable frequency motor and improves rotating speed, thus improve the flow velocity of cooling water, play the effect reducing water temperature, if the increase that water temperature is lasting, make the temperature difference of the inlet end of Casting Roller and water outlet end too small or excessive time, PLC control system controls the water inlet of three-way control valve and slowly opens with outlet and control openings of sizes, the cooling water of backflow flows to the inlet end of Casting Roller again after cooling down in being completely or partially transported to chiller, to ensure inlet end and the temperature gap of water outlet end of Casting Roller, after temperature gap reaches the initial temperature differences set, the water inlet of three-way control valve and outlet slowly closing.Pressure transducer detects pressure constantly, prevents water pump from quitting work in systems.
In a word, this utility model can either accurately control discharge, can accurately control again water temperature, and even regulation water temperature.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Detailed description of the invention
:
The utility model will be further described with detailed description of the invention below in conjunction with the accompanying drawings:
As it is shown in figure 1, the present embodiment includes chiller 6, three-way control valve 5, frequency conversion motor 12 water pump 1 driven, temperature sensor, pressure transducer, flow transducer and PLC control system 7.Three-way control valve 5 is gas control three-way control valve.The outlet pipe of chiller 6 is by being connected to the water inlet end of three-way control valve 5 after valve, the water side of three-way control valve 5 is connected to the water inlet of two Casting Rollers 8 by water pipe and threeway tube head 10, the water pipe between threeway tube head 10 and the water inlet of two Casting Rollers 8 is drawn water pipe respectively and is connected on temperature sensor 31,32 and pressure transducer 21,22.The outlet of two Casting Rollers 8 is respectively by the water inlet end of water pipe connection traffic sensor 41 and 42, the water side of flow transducer 41 and 42 is connected to the water inlet end of water pump 1 by water pipe, and the water side of water pump 1 is by being connected on another water inlet end of three-way control valve 5 and the return pipe of chilled water unit 6 after water pipe and another threeway tube head 11.Draw water pipe on water pipe between flow transducer 41,42 and the water inlet end of water pump 1 respectively to be connected on the 3rd temperature sensor 33 and the 3rd pressure transducer 23.The information output of 31,32 and 33, three pressure transducers 21,22 and 23 of three temperature sensors and flow transducer 41,42 is connected to each information input terminal of PLC control system 7, each information output of PLC control system 7 is connected to signal input part and the information input terminal of frequency conversion motor 12 of three-way control valve 5, controls unlatching size and closedown, the power of frequency conversion motor 12 of each path of three-way control valve 5.It is further preferred that the present embodiment also includes that manual modulation valve 9, manual modulation valve 9 are arranged in parallel with three-way control valve 5.It is further preferred that the present embodiment also includes that filter 13, filter 13 are arranged on the water pipe between the water side of three-way control valve 5 and threeway tube head 10.
Above-described embodiment is only preferred and exemplary, and those skilled in the art can make equivalent technologies according to the description of this patent and change, and it is all covered by the protection domain of this patent.
Claims (5)
1. an aluminium casting-rolling mill automatic cooling water control system, it is characterised in that: it includes chiller, three-way control valve, the frequency conversion motor water pump driven, temperature sensor, pressure transducer, flow transducer and PLC control system；The outlet pipe of chiller is connected to the water inlet end of three-way control valve, the water side of three-way control valve is connected to the water inlet of two Casting Rollers by water pipe and threeway tube head, the water pipe between the water inlet of threeway tube head and two Casting Rollers is drawn water pipe respectively and is connected on temperature sensor and pressure transducer；The outlet of two Casting Rollers is respectively by the water inlet end of water pipe connection traffic sensor, the water side of flow transducer is connected to the water inlet end of water pump by water pipe, and the water side of water pump is by being connected on another water inlet end of three-way control valve and the return pipe of chilled water unit after water pipe and another threeway tube head；Draw water pipe on water pipe between flow transducer and the water inlet end of water pump respectively to be connected on the 3rd temperature sensor and the 3rd pressure transducer；The information output of three temperature sensors, three pressure transducers and flow transducer is connected to each information input terminal of PLC control system, each information output of PLC control system is connected to the signal input part of three-way control valve and the information input terminal of frequency conversion motor, controls unlatching size and closedown, the power of frequency conversion motor of each path of three-way control valve.
Aluminium casting-rolling mill automatic cooling water control system the most according to claim 1, it is characterised in that: described three-way control valve is gas control three-way control valve.
Aluminium casting-rolling mill automatic cooling water control system the most according to claim 1 and 2, it is characterised in that: it also includes manual modulation valve, and manual modulation valve is arranged in parallel with three-way control valve.
Aluminium casting-rolling mill automatic cooling water control system the most according to claim 3, it is characterised in that: it also includes filter, and filter is arranged on the water pipe between the water side of three-way control valve and threeway tube head.
Aluminium casting-rolling mill automatic cooling water control system the most according to claim 1 and 2, it is characterised in that: it also includes filter, and filter is arranged on the water pipe between the water side of three-way control valve and threeway tube head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378958.9U CN205732863U (en) | 2016-05-01 | 2016-05-01 | A kind of aluminium casting-rolling mill automatic cooling water control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378958.9U CN205732863U (en) | 2016-05-01 | 2016-05-01 | A kind of aluminium casting-rolling mill automatic cooling water control system |
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| CN205732863U true CN205732863U (en) | 2016-11-30 |
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| CN201620378958.9U Active CN205732863U (en) | 2016-05-01 | 2016-05-01 | A kind of aluminium casting-rolling mill automatic cooling water control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862527A (en) * | 2016-12-28 | 2017-06-20 | 中瑞新源能源科技(天津)股份有限公司 | A kind of cooling water monitoring system |
| CN107973519A (en) * | 2017-12-01 | 2018-05-01 | 安徽蓝博玻璃有限公司 | A kind of molten tin bath water coolers circulate water control system |
| CN110840358A (en) * | 2018-08-21 | 2020-02-28 | 青岛海尔洗碗机有限公司 | Water route pressure regulating mechanism and dish washer |
-
2016
- 2016-05-01 CN CN201620378958.9U patent/CN205732863U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862527A (en) * | 2016-12-28 | 2017-06-20 | 中瑞新源能源科技(天津)股份有限公司 | A kind of cooling water monitoring system |
| CN107973519A (en) * | 2017-12-01 | 2018-05-01 | 安徽蓝博玻璃有限公司 | A kind of molten tin bath water coolers circulate water control system |
| CN110840358A (en) * | 2018-08-21 | 2020-02-28 | 青岛海尔洗碗机有限公司 | Water route pressure regulating mechanism and dish washer |
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