CN112676549A - Control system of high-temperature die temperature machine special for die casting - Google Patents
Control system of high-temperature die temperature machine special for die casting Download PDFInfo
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- CN112676549A CN112676549A CN202011628831.5A CN202011628831A CN112676549A CN 112676549 A CN112676549 A CN 112676549A CN 202011628831 A CN202011628831 A CN 202011628831A CN 112676549 A CN112676549 A CN 112676549A
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Abstract
The invention provides a control system of a high-temperature die temperature controller special for die casting, which comprises: the heat exchanger comprises a heat transfer medium circulation path connected with general heat equipment to form a circulation loop, a heat exchange module used for heating or cooling the heat transfer medium, a circulation pump arranged on the heat transfer medium circulation path and communicated with a heater end, a pressure stabilizing assembly arranged on the heat transfer medium circulation path between the circulation pump and the heat exchange module and a controller; the heat exchange module comprises a heater and a heat exchanger which are integrally arranged, and a cooling water inlet and a cooling water outlet are communicated with the heat exchanger; the pressure stabilizing assembly comprises a buffer tank and an expansion tank; the heat transfer medium circulation path comprises a liquid return pipe and a liquid outlet pipe, the expansion tank comprises a gas outlet and a gas outlet, the liquid return pipe is provided with a first temperature sensor, the liquid outlet pipe is provided with a second temperature sensor, and the first temperature sensor and the second temperature sensor are electrically connected with the controller. Compared with the prior art, the invention has the advantages of high switching speed between high temperature and low temperature, simple structure, high temperature control accuracy rate and the like.
Description
Technical Field
The invention relates to the technical field of temperature control equipment, in particular to a control system of a die temperature machine special for die casting, which has the heating temperature of 350 ℃.
Background
The existing die casting method is mainly a precision casting method that molten materials are filled in a die under high-pressure and high-speed conditions and are cooled, solidified and formed under high pressure, and in the actual die casting production process, a die temperature machine is required to be used for rapidly switching high and low temperatures of the die so as to ensure the yield of products. However, the heating temperature of the die temperature machine in the current market can only reach 320 ℃, the heating effect is limited, the application range is greatly limited, the overall safety performance of the die temperature machine under high-temperature heating is poor, and the safety performance of higher heating temperature cannot be met; meanwhile, the oil pumping efficiency of the existing mold temperature controller is poor, and part of cooling liquid is remained in the system after the oil pumping is finished, so that the production is greatly influenced.
Disclosure of Invention
The invention provides a control system of a die-casting special high-temperature die temperature controller, which solves the technical problems of low heating temperature, poor safety performance and poor oil pumping effect of the die-casting die temperature controller in the prior art.
The technical scheme adopted by the invention is as follows: a special high temperature die temperature machine control system of die-casting includes: a heat transfer medium circulation path connected to the heat facility to form a circulation loop; the heat exchange module is used for heating or cooling a heat transfer medium, and comprises a heater and a heat exchanger which are integrally arranged, wherein the heat transfer medium flows in from the heat exchanger end of the heat exchange module and flows out from the heater end; the circulating pump is arranged on the heat transfer medium circulating path and communicated with the heater end; the pressure stabilizing assembly is arranged on a heat transfer medium circulation path between the circulating pump and the heat exchange module; and the controller is electrically connected with the heat exchange module, the circulating pump and the voltage stabilizing assembly.
Further, the control system of the die-casting special high-temperature die temperature machine further comprises a cooling water inlet and a cooling water outlet, and the cooling water inlet and the cooling water outlet are communicated with the heat exchanger.
Further, the heat exchange module is also provided with an oil drain port.
Further, the pressure stabilizing assembly comprises a buffer tank arranged on the heat transfer medium circulation path and an expansion tank communicated with the buffer tank.
Further, the heat transfer medium circulation path comprises a liquid return pipe communicated between the heat utilization equipment and the heat exchange module and a liquid outlet pipe communicated between the heat exchange module and the heat utilization equipment, the liquid outlet pipe comprises a first pipe section communicated between the heat exchange module and the buffer tank, the expansion tank comprises a gas outlet and a gas outlet, the gas outlet is communicated with the first pipe section, and the gas outlet is communicated with the liquid return pipe.
Furthermore, an exhaust solenoid valve is arranged on a pipeline for communicating the exhaust port with the first pipe section.
Furthermore, a one-way valve is arranged on a pipeline for communicating the gas outlet with the liquid return pipe.
Furthermore, a first temperature sensor is arranged at the communication position of the liquid return pipe and the heat utilization equipment, a second temperature sensor is arranged at the communication position of the liquid outlet pipe and the heat utilization equipment, and the first temperature sensor and the second temperature sensor are electrically connected with the controller.
Further, the drain pipe comprises a second pipe section communicated between the circulating pump and the heat utilization equipment, the control system of the die-casting special high-temperature die temperature machine further comprises a bypass flow path communicated between the second pipe section and the liquid return pipe, and a one-way valve is arranged on the bypass flow path.
Compared with the prior art, the control system of the die-casting special high-temperature die-temperature machine has the advantages that the heat exchange module integrating the heater and the heat exchanger for integral use is arranged, and the heat transfer medium flows in from the heat exchanger end of the heat exchange module and flows out from the heater end under the action of the circulating pump, so that the purity of the pipeline heat transfer medium in the system is ensured, the stability and the high efficiency of heat exchange of the heat transfer medium in heat utilization equipment are further ensured, the heating efficiency of the heat transfer medium is greatly improved, the temperature of the heat transfer medium is heated to 350 ℃ at the highest energy, the heating temperature of the die-temperature machine is greatly improved, the pressure of the system is maintained to be stable under the action of the pressure stabilizing assembly, the safety performance of the whole system under the high-temperature operation of hot oil in the die-temperature machine is improved, the oil is directly pumped from the system under the oil reverse pumping function of, the oil extraction of the system is cleaner.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a control system of a die-casting dedicated high-temperature die temperature controller according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a control system of a die temperature controller special for die casting, which comprises a heat utilization device 1, wherein a heat transfer medium circulation path in the system connects each device unit in the system with the heat utilization device in series to form a heat transfer medium circulation loop; each of the equipment units specifically includes: the heat exchange module 2 is arranged on the heat transfer medium circulation loop and used for rapidly heating or cooling the heat transfer medium so as to ensure that the heat utilization equipment 1 is provided with proper temperature; the circulating pump 3, the circulating pump 3 provides power for the circulation flow of the heat transfer medium; the pressure stabilizing component is used for stabilizing the pressure stability of the system and providing guarantee for the stability of the system; and a controller (not shown) electrically connected with the heat exchange module 2, the circulating pump 3 and the voltage stabilizing assembly to coordinate and control the operation of each device.
Specifically, heat exchange module 2 includes heater 21 and heat exchanger 22, heater 21 and heat exchanger 22 integration set up in an organic whole, heat transfer medium when flowing through heat exchange module 2, flow in from the one end of heat exchanger 22 earlier, then flow out from the one end of heater 21, integrated the locating integrative with heater 21 and heat exchanger 22, made things convenient for controller automatic switch heat exchange module 2 to heat or cool off greatly, the structure of system has been simplified, the cost is saved, the connection of complicated and in disorder circuit has been avoided, the flexibility of cooler (heat exchanger) and heater has been improved. Meanwhile, the heater 21 is the liquid outlet end of the heat exchange module 2, and the heat exchanger 22 is the liquid inlet end of the heat exchange module 2, so that pure liquid heat transfer medium is obtained after the heat transfer medium flows through the heat exchanger 22 for heat exchange, and then the pure liquid heat transfer medium enters the heater 21 for heating, thereby ensuring the purity of the pipeline heat transfer medium in the system, further ensuring the stability and the high efficiency of the heat transfer medium in heat utilization equipment for heat exchange, greatly improving the heating efficiency of the heat transfer medium, and enabling the temperature of the heat transfer medium to be heated to 350 ℃ at the highest energy.
Preferably, special ceramic fibers are used for thermal insulation between the heater 21 and the heat exchanger 22 to satisfy precise control of the temperature of the heat transfer medium.
Further, the control system of the die-casting special high-temperature die-temperature controller further comprises a cooling water inlet 6 and a cooling water outlet 7, the cooling water inlet 6 and the cooling water outlet 7 are communicated with the heat exchanger 22, a filter 61 and a first switch valve 62 are sequentially arranged between the cooling water inlet 6 and the heat exchanger 22, the filter 61 avoids scaling of the heat exchanger 22, the switch valve 62 controls on-off of cooling water, and a second switch valve 71 is arranged between the cooling water outlet 7 and the heat exchanger 22 and controls on-off of cooling water so as to cool a heat transfer medium flowing through the heat exchanger 22.
Preferably, the heat exchange module 2 is further provided with an oil discharge port 23, and the oil discharge port 23 is used for discharging the heat transfer medium in the heat exchange module 2 for maintenance and the like.
Preferably, the circulating pump 3 in the present application selects a magnetic coupling side-acting pump as the circulating pump for driving the non-heat-transfer medium to circulate, so as to improve the sealing property of the heat-transfer medium.
Further, the heat transfer medium circulation path comprises a liquid outlet pipe 4 and a liquid return pipe 5, the liquid outlet pipe 4 is communicated between the heat exchange module 2 and the heat utilization equipment 1, the heat transfer medium from the heat exchange module 2 flows into the heat utilization equipment 1 from the liquid outlet pipe 4, and a pressure stabilizing assembly and a circulation pump 3 are sequentially arranged between the heat exchange module 2 and the heat utilization equipment 1; the liquid return pipe 5 is communicated between the heat utilization equipment 1 and the heat exchange module 2, and the heat transfer medium flowing out of the heat utilization equipment 1 flows back to the heat exchange module 2 from the liquid return pipe 5 to continue heat exchange.
The liquid outlet pipe 4 comprises a first pipe section 41 and a second pipe section 42, the first pipe section 41 is arranged between the heat exchange module 2 and the pressure stabilizing assembly, and the second pipe section 42 is arranged between the circulating pump 3 and the heat consuming equipment 1.
Further, the pressure stabilizing assembly comprises a buffer tank 8 and an expansion tank 9, the buffer tank 8 is arranged on the heat transfer medium circulation path, the two ends of the buffer tank are respectively connected with the heat exchange module 2 and the circulating pump 3, the arrangement of the buffer tank 8 greatly reduces the non-uniformity of the suction flow of the circulating pump 3, reduces the inertia loss of the heat transfer medium, and improves the suction performance of the circulating pump 3.
Expansion tank 9 sets up in the top of buffer tank 8 and communicates with buffer tank 8, just so makes the gaseous state heat transfer medium of buffer tank 8 top can flow the people to the expansion tank 9 in, is equipped with structures such as relief valve, discharge valve in the expansion tank 9, and expansion tank 9 can exhaust and carry out the pressure release.
Specifically, the expansion tank 9 includes an air outlet 91 and an air outlet 92, the air outlet 92 is communicated with the first pipe section 41, the air outlet 91 is communicated with the liquid return pipe 5, and a pipeline through which the air outlet 91 is communicated with the liquid return pipe 5 is provided with a check valve 94, the check valve 94 does not operate when the system adjusts the temperature of the heat using device 1, and operates only when the system pumps oil, for example, the circulating pump 3 reversely pumps the heat transfer medium in the system, at this time, the check valve 94 is opened, the system pumps the gas in the expansion tank 9 so as to make the gas directionally circulate, and further the heat transfer medium in the system is pumped and discharged from the oil discharge port 23, so as to perform maintenance, repair and other work on the system.
Simultaneously, be equipped with exhaust solenoid valve 93 on the pipeline of gas vent 92 and first pipe section 41 intercommunication, when the system temperature risees fast and lead to pressure too big, exhaust solenoid valve 93 discharges to expansion tank 9 with the gas-liquid in the system, and expansion tank 9 is accomodate gas and is carried out the exhaust steady voltage, has just so further guaranteed the normal of the pressure value in the system, very big improvement the security of entire system under high temperature operation.
Preferably, this application still is equipped with first temperature sensor 51 in the intercommunication department of liquid return pipe 5 with thermal equipment 1, drain pipe 4 is equipped with second temperature sensor 43 with the intercommunication department of thermal equipment, and first temperature sensor 51 and second temperature sensor 43 are connected with the controller electricity to system temperature value feedback to the controller that will detect in real time, controller control trades heat exchange module 2 and switches over to the heater and open or the heat exchanger is opened, or adjusts the heat transfer medium temperature of system through the power that changes the heater, realizes that the temperature switches fast and accurate control.
Preferably, the control system of the die-casting dedicated high-temperature die-heater further comprises a bypass flow path 10 communicated from the second pipe section 42 to the liquid return pipe 5, which can ensure that when the system starts to operate and the client is not communicated, the heat transfer medium in the system can temporarily circulate from the bypass flow path, so as to prevent the system from being blocked, and further cause the equipment failure such as the circulating pump 3; in addition, a check valve 11 is provided in the system bypass flow path 10, so that the heat transfer medium in the system is ensured to flow back from the bypass flow path 10 when the system performs back pumping.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a special high temperature die temperature machine control system of die-casting which characterized in that includes: a heat transfer medium circulation path connected to the heat facility to form a circulation loop; the heat exchange module is used for heating or cooling a heat transfer medium, and comprises a heater and a heat exchanger which are integrally arranged, wherein the heat transfer medium flows in from the heat exchanger end of the heat exchange module and flows out from the heater end; the circulating pump is arranged on the heat transfer medium circulating path and communicated with the heater end; the pressure stabilizing assembly is arranged on a heat transfer medium circulation path between the circulating pump and the heat exchange module; and the controller is electrically connected with the heat exchange module, the circulating pump and the voltage stabilizing assembly.
2. The die-casting dedicated high-temperature die warmer control system according to claim 1, further comprising a cooling water inlet and a cooling water outlet, the cooling water inlet and the cooling water outlet being in communication with the heat exchanger.
3. The control system of claim 1, wherein the heat exchange module further comprises an oil drain.
4. The control system of claim 1, wherein the pressure stabilizing assembly comprises a buffer tank disposed on the heat transfer medium circulation path and an expansion tank communicated with the buffer tank.
5. The control system of the die-casting dedicated high-temperature die warmer as claimed in claim 4, wherein the heat transfer medium circulation path comprises a liquid return pipe communicating between the heat-consuming equipment and the heat exchange module and a liquid outlet pipe communicating between the heat exchange module and the heat-consuming equipment, the liquid outlet pipe comprises a first pipe section communicating between the heat exchange module and the buffer tank, the expansion tank comprises a gas outlet and a gas outlet, the gas outlet is communicated with the first pipe section, and the gas outlet is communicated with the liquid return pipe.
6. The control system of claim 5, wherein an exhaust solenoid valve is disposed on a pipeline connecting the exhaust port and the first pipe section.
7. The control system of claim 5, wherein a check valve is disposed on a pipeline connecting the air outlet and the liquid return pipe.
8. The control system of the die-casting dedicated high-temperature die heater as claimed in claim 5, wherein a first temperature sensor is disposed at a communication position of the liquid return pipe and the heat consuming device, a second temperature sensor is disposed at a communication position of the liquid return pipe and the heat consuming device, and the first temperature sensor and the second temperature sensor are electrically connected to the controller.
9. The control system of claim 5, wherein the liquid outlet pipe comprises a second pipe section communicated between the circulation pump and the heat consuming device, the control system further comprises a bypass flow path communicated from the second pipe section to the liquid return pipe, and a check valve is disposed on the bypass flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628831.5A CN112676549A (en) | 2020-12-31 | 2020-12-31 | Control system of high-temperature die temperature machine special for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628831.5A CN112676549A (en) | 2020-12-31 | 2020-12-31 | Control system of high-temperature die temperature machine special for die casting |
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| CN112676549A true CN112676549A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011628831.5A Pending CN112676549A (en) | 2020-12-31 | 2020-12-31 | Control system of high-temperature die temperature machine special for die casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872325A (en) * | 2021-04-22 | 2021-06-01 | 浙大宁波理工学院 | Self-adaptation die casting die temperature control device |
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2020
- 2020-12-31 CN CN202011628831.5A patent/CN112676549A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872325A (en) * | 2021-04-22 | 2021-06-01 | 浙大宁波理工学院 | Self-adaptation die casting die temperature control device |
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