CN215703828U - Electric heating heat-conducting oil mold temperature controller - Google Patents
Electric heating heat-conducting oil mold temperature controller Download PDFInfo
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- CN215703828U CN215703828U CN202121528921.7U CN202121528921U CN215703828U CN 215703828 U CN215703828 U CN 215703828U CN 202121528921 U CN202121528921 U CN 202121528921U CN 215703828 U CN215703828 U CN 215703828U
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Abstract
The utility model provides an electric heating heat conduction oil mold temperature controller, which comprises: a heater, a cooler, and a controller. The heater is provided with a three-phase power regulator, and the top of the heater is provided with an oil outlet pipe. An oil outlet temperature sensor is installed on the oil outlet pipe, an oil return pipe is connected to the bottom of the heater, and the heater is communicated with the cooler through the oil return pipe. One side of the cooler is connected with a water inlet pipe, a water inlet electromagnetic valve is installed on the water inlet pipe, and the other side of the cooler is connected with a water outlet pipe. The controller acquires the oil outlet temperature by being connected with the oil outlet temperature sensor, and when the oil outlet temperature exceeds a threshold value, the controller is connected with the three-phase power regulator to control the three-phase power regulator to reduce the output power of the heater, and meanwhile, the controller is connected with the water inlet electromagnetic valve to control the switch-on of the water inlet pipe. The power of the heater is adjusted through the three-phase power adjuster, so that the electric energy of the heater is effectively reduced to be converted into heat energy. The heat-conducting oil is cooled in an auxiliary manner by the cooler, so that the cooling speed of the heat-conducting oil can be effectively increased.
Description
Technical Field
The utility model relates to the field of mold heating equipment, in particular to an electric heating heat conduction oil mold temperature controller.
Background
The mold temperature controller, i.e. the mold temperature controller, is initially applied to the temperature control of the injection mold, and then is applied to a wider variety of processing molds along with the development of the mechanical industry. The existing mold temperature machine comprises a heater, a temperature sensor and a pump, wherein a heat carrier is heated by the heater and is injected into a mold heat exchange channel through the pump and an extension pipeline to form a circulation loop. In general, a pump provides heat carrier circulation power, so that a heat carrier reaches the mold from a heater and then returns to a water tank from the mold; the temperature sensor measures the temperature of the hot fluid, when the temperature of the die exceeds the set value of the controller, the temperature of the die is indirectly adjusted by controlling the temperature of the heat carrier, and the temperature of the die returns to the set value. If the mold temperature is below the set point, the controller turns on the heater.
At present, heat transfer oil is generally selected as a heat carrier, and an indirect cooling mode is adopted because water and oil cannot be mixed together in the heating process. The indirect cooling mode adopts a cooling loop separated from a main loop, and cooling oil is cooled by heat exchange between cooling water of the cooling loop and the heat conducting oil in the main loop. The disadvantage of this method is that the heat exchange efficiency between the two is slow, resulting in slow cooling, heat dissipation and waste of electric energy.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric heating heat-conducting oil mold temperature machine for solving the problem of slow cooling of heat-conducting oil in the electric heating mold temperature machine, which comprises: a heater, a cooler, and a controller;
the heater is provided with a three-phase power regulator;
an oil outlet pipe is arranged at the top of the heater, and an oil outlet temperature sensor is arranged on the oil outlet pipe;
the bottom of the heater is connected with an oil return pipe, and the heater is communicated with the cooler through the oil return pipe;
one side of the cooler is connected with a water inlet pipe, and a water inlet electromagnetic valve is arranged on the water inlet pipe;
the other side of the cooler is connected with a water outlet pipe;
the controller is connected with the oil outlet temperature sensor to obtain the oil outlet temperature; when the oil outlet temperature exceeds the threshold value, the controller is connected with the three-phase power regulator to control the three-phase power regulator to reduce the output power of the heater, and meanwhile, the controller is connected with the water inlet electromagnetic valve to control the water inlet pipe to be communicated.
Preferably, the device also comprises an oil tank;
an oil-gas separator is arranged on the oil return pipe;
the exhaust port of the oil-gas separator is communicated with the oil tank through an exhaust pipe;
an exhaust electromagnetic valve is arranged on the exhaust pipe and is connected with the controller;
install baroceptor on the oil tank, the controller is through being connected with baroceptor, and when the oil tank internal gas pressure exceeded the threshold value, control exhaust solenoid valve opened.
Preferably, the device further comprises a display screen;
the display screen is connected with the controller;
an oil return temperature sensor is installed on the oil return pipe, and the controller is connected with the oil return temperature sensor to obtain oil return temperature and display the oil return temperature on the display screen.
Preferably, the oil return pipe is also provided with an oil return stop valve, an oil return filter, an oil drain valve and a circulating pump;
the oil drain valve is connected with the controller;
a water outlet stop valve is arranged on the water outlet pipe;
the water inlet pipe is also provided with a water inlet filter;
the oil outlet pipe is also provided with an oil outlet pressure sensor and an oil outlet stop valve;
the controller acquires oil outlet pressure through being connected with the oil outlet pressure sensor and displays the oil outlet pressure through the display screen.
Preferably, a liquid level sensor, an overflow sensor, an oil filling port and a safety valve are arranged on the oil tank;
the controller is connected with the liquid level sensor to acquire the liquid level of the oil tank and display the liquid level on the display screen.
Preferably, the controller is connected with the overflow sensor, and when the overflow of the oil tank is detected, the oil drain valve is controlled to be opened;
an oil return pressure sensor is installed on the oil return pipe, and the controller is connected with the oil return pressure sensor to acquire the pressure of the oil return pipe and display the pressure on a display screen.
Preferably, the circulating pump control circuit is further included, and the controller controls the operation of the circulating pump through the circulating pump control circuit;
the controller adopts AT89C51 singlechip, or STM32 series singlechip.
According to the technical scheme, the utility model has the following advantages:
according to the electric heating heat conduction oil mold temperature controller, the three-phase power regulator is additionally arranged and connected with the heater, the three-phase power regulator controls the voltage, the current and the heating power of the heater to timely reduce the heating quantity from the heating source head, and meanwhile, the electric heating heat conduction oil mold temperature controller is matched with the cooler to realize rapid cooling, so that the electric energy use efficiency is improved, and the electric energy is saved.
According to the utility model, the oil-gas separator is arranged on the oil return pipe to separate air in the heat conduction oil, so that the heat conduction oil is fully contacted with the oil way pipeline of the mold, the mold can be uniformly heated, and the service life of the mold is prolonged.
In the utility model, the safety valve and the exhaust electromagnetic valve are arranged on the oil tank to discharge air in the oil tank in time, so that the pressure in the oil tank and the pipeline is prevented from being overlarge.
According to the utility model, the oil return temperature is obtained by arranging the oil return temperature sensor, so that the temperature of the die can be known more accurately.
When the heat conduction oil in the oil tank overflows, the electric heating heat conduction oil mold temperature controller can drain oil in time through the oil drain valve and can also drain oil stains in a pipeline. The level of the heat-conducting oil in the oil tank is acquired in real time through the liquid level sensor, and the phenomenon of dry burning of the heater under the condition of lack of the heat-conducting oil is prevented.
According to the utility model, the oil pressure condition in the pipeline can be acquired through the oil outlet pressure sensor and the oil return pressure sensor, so that the oil passage is prevented from being blocked.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, 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 that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an electric heating heat-conducting oil mold temperature controller;
fig. 2 is a control schematic diagram of the controller.
In the figure: 1-heater, 2-oil tank, 3-cooler, 4-circulating pump, 5-oil-gas separator, 6-three-phase power regulator, 7-water inlet electromagnetic valve, 8-liquid level sensor, 9-oil outlet pressure sensor, 10-oil outlet temperature sensor, 11-oil outlet stop valve, 12-oil return pressure sensor, 13-oil return temperature sensor, 14-oil return filter, 15-oil return stop valve, 16-water outlet stop valve, 17-water inlet filter, 18-overflow sensor, 19-oil filling port, 20-safety valve, 21-exhaust electromagnetic valve, 23-circulating pump control circuit, 25-display screen, 26-controller, 27-air pressure sensor and 28-oil drain valve.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The utility model provides an electric heating heat conduction oil mold temperature controller, as shown in figures 1 to 2, comprising: a heater 1, a cooler 3, and a controller 26. The controller 26 adopts an AT89C51 singlechip or an STM32 series singlechip. The heater 1 is a device for providing heat energy for an electric heating wire, an electric heating plate or an electric heating pipe and the like, and is mainly used for converting electric energy into heat energy and heating heat-conducting oil. The power input end of the heater 1 is provided with a three-phase power regulator 6, wherein the three-phase power regulator 6 is also called as: a thyristor regulator. The three-phase power regulator 6 is mainly used for adjusting the heating power of various electric heating devices. The three-phase power regulator 6 can realize precise temperature control through precise control of voltage, current and power, and has the functions of optimizing the use efficiency of electric energy and saving electric energy.
The oil outlet pipe 29 is installed on the top of the heater 1 to enable the conduction oil to be sufficiently heated when flowing out of the heater 1. The oil outlet pipe 29 is communicated with the mold, the circulating pump 4 provides heat conducting oil flowing power, and the heat conducting oil heated to a certain temperature is injected into the mold through the oil outlet pipe 29. The controller 26 controls the operation of the circulation pump 4 by a circulation pump control circuit 23, and the circulation pump control circuit 23 includes an electric device such as an intermediate relay or an inverter. The oil outlet pipe 29 is provided with an oil outlet temperature sensor 10 for detecting the temperature of the heat-conducting oil in the pipeline of the oil outlet pipe 29. The bottom of the heater 1 is connected with an oil return pipe 30, the oil return pipe 30 is communicated with the die, and the circulating pump 4 provides circulating power for the heat conduction oil from the die to the heater 1. The oil return pipe 30 is provided with a cooler 3, one side of the cooler 3 is connected with a water inlet pipe 31, and the water inlet electromagnetic valve 7 is arranged on the water inlet pipe 31. The water inlet pipe 31 is connected with devices such as a salt-free water tank and a water supply pump, low-temperature cooling water is provided for the water inlet pipe 31, and the high-temperature heat conducting oil in the oil return pipe 30 is subjected to heat exchange and indirect cooling through cooling water in the water pipe of the water inlet pipe 31. The water which absorbs the heat of the high-temperature heat-conducting oil in the oil return pipe 30 and becomes high-temperature flows out through the water outlet pipe 32 connected with the other side of the cooler 3, so that the cooler 3 has the function of low-temperature cooling all the time. The water outlet pipe 32 is provided with a water outlet stop valve 16 for emergency shutdown, and the water inlet pipe 31 is provided with a water inlet filter 17 for filtering the inlet cooling water.
The pipeline and the conduction oil can all inevitably contain air, and the air can form the bubble in the conduction oil, and when the conduction oil with the bubble enters into heater 1, the bubble receives high temperature and can take place to explode and split to can increase the inside pressure of heater 1 in the twinkling of an eye, make heater 1 take place danger easily. Meanwhile, the pipeline occupied by the bubbles is difficult to supplement, so that the oil quantity in the pipeline is insufficient, the heat conduction oil in the pipeline cannot be fully contacted with the inner wall of the oil pipeline of the mold, the mold is heated unevenly, the mold is easily damaged, the service life of the mold is shortened, and the like. Therefore, the oil return pipe 30 is provided with an oil-gas separator 5 for separating air in the heat transfer oil during the heating process. The exhaust port of the oil-gas separator 5 is communicated with the oil tank 2 through an exhaust pipe. An exhaust solenoid valve 21 is attached to the exhaust pipe, and the exhaust solenoid valve 21 is connected to a controller 26. The air pressure sensor 27 is attached to the oil tank 2, and the controller 26 is connected to the air pressure sensor 27 to control the exhaust solenoid valve 21 to open and exhaust air when the air pressure in the oil tank 2 exceeds a threshold value. In order to prevent the air pressure in the oil tank 2 from being too high, a safety valve 20 is provided on the oil tank 2 for emergency air discharge and pressure relief.
Further, a liquid level sensor 8 is further installed on the oil tank 2, and the controller 26 is connected with the liquid level sensor 8 to obtain the liquid level of the oil tank 2 and display the liquid level on the display screen 25. When the level of the heat-conducting oil in the oil tank exceeds a set value or reaches an overflow port of the oil tank 2 to overflow, the controller 26 controls the oil drain valve 28 to open to drain the oil accumulated at the bottom. Meanwhile, the overflow sensor 18 is arranged and connected with the overflow sensor 18 through the controller 26, and when the overflow phenomenon of the oil tank 2 is detected, the oil drain valve 28 is opened to drain oil in time, so that the heat conduction oil is prevented from overflowing for a long time, and the waste of the heat conduction oil and the pollution to the environment are prevented. The level of the heat-conducting oil in the oil tank 2 is lower than a set value, a communication device is matched to warn a worker to perform oil injection through the oil injection port 19, or devices such as an oil pump and an oil storage tank are additionally arranged, and the controller 26 controls the oil pump to extract the heat-conducting oil in the oil storage tank to automatically supplement the oil in the oil tank 2.
In the present invention, the display screen 25 is connected to the controller 26, and the display screen 25 is a liquid crystal display screen or an LED display screen. The oil return pipe 30 is provided with an oil return temperature sensor 13, and the controller 26 is connected with the oil return temperature sensor 13 to obtain the oil return temperature and display the oil return temperature on the display screen 25. The oil return pipe 30 is also provided with an oil return stop valve 15 for stopping the oil return pipe in emergency. An oil return filter 14 is arranged to filter dirt carried by heat conduction oil flowing through a pipeline and a mould, so that the circulating pump 4 or the heater 1 is prevented from being blocked. In order to prevent the pipe from being clogged, the outlet pipe 29 is further provided with an outlet pressure sensor 9, and the return pipe 30 is provided with a return pressure sensor 12. For detecting the line pressure of the oil outlet pipe 29 and the line pressure of the oil return pipe 30, respectively. The controller 26 acquires the oil outlet pressure by being connected to the oil outlet pressure sensor 9, and the controller 26 acquires the return pipe pressure by being connected to the return pressure sensor 12. And is displayed through the display screen 25 or through the pressure gauge. When the pressure exceeds the threshold value, the blockage phenomenon exists in the pipeline. When the oil pipe is blocked, the worker can cut off the oil pipe through the oil outlet stop valve 11 or the oil return stop valve 15 in an emergency, and the blocked part of the oil pipe is detached and dredged.
The specific implementation process comprises the steps that firstly, the circulating pump 4 is started through the controller 26, heat conducting oil in the oil tank 2 is extracted and injected into the heater 1, after sufficient heat conducting oil is injected into the heater 1, the controller 26 controls the heater 1 to heat through the three-phase power regulator 6, after the heat conducting oil in the heater 1 has a certain temperature, the heat conducting oil in the heater 1 is extracted through the circulating pump 4 and injected into a mold through the oil outlet pipe 29, and after heat exchange of the high-temperature heat conducting oil in the mold is completed, the high-temperature heat conducting oil returns to the heater 1 through the oil return pipe 30 and the circulating pump 4 to be heated. After the mold reaches the set temperature, the controller 26 acquires the oil outlet temperature by connecting with the oil outlet temperature sensor 10. When the oil outlet temperature exceeds the threshold value, the controller 26 is connected with the three-phase power regulator 6 to control the three-phase power regulator 6 to reduce the output power of the heater 1 and reduce the amount of electric energy converted into heat energy by the heater 1. Meanwhile, the controller 26 is connected with the water inlet electromagnetic valve 7 to control the water inlet electromagnetic valve 7 to be opened, so that the water inlet pipe 31 is communicated, and the low-temperature cooling water is used for cooling the heat conducting oil in the oil return pipe 30. When the heat conducting oil in the oil return pipe 30 flows back to the heater 1, the heater 1 does not heat the heat conducting oil any more or is in a low-heating heat preservation state, and the heat conducting oil is prevented from still being in a high-temperature state when flowing out of the heater 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an electrical heating conduction oil mold temperature machine which characterized in that includes: a heater (1), a cooler (3) and a controller (26);
the heater (1) is provided with a three-phase power regulator (6);
an oil outlet pipe (29) is arranged at the top of the heater (1), and an oil outlet temperature sensor (10) is arranged on the oil outlet pipe (29);
the bottom of the heater (1) is connected with an oil return pipe (30), and the heater (1) is communicated with the cooler (3) through the oil return pipe (30);
one side of the cooler (3) is connected with a water inlet pipe (31), and a water inlet electromagnetic valve (7) is installed on the water inlet pipe (31);
the other side of the cooler (3) is connected with a water outlet pipe (32);
the controller (26) is connected with the oil outlet temperature sensor (10) to acquire the oil outlet temperature; when the oil outlet temperature exceeds the threshold value, the controller (26) is connected with the three-phase power regulator (6) to control the three-phase power regulator (6) to reduce the output power of the heater (1), and meanwhile, the controller (26) is connected with the water inlet electromagnetic valve (7) to control the water inlet pipe (31) to be communicated.
2. The electrically heated conduction oil mold temperature controller according to claim 1, further comprising an oil tank (2);
an oil-gas separator (5) is arranged on the oil return pipe (30);
an exhaust port of the oil-gas separator (5) is communicated with the oil tank (2) through an exhaust pipe;
an exhaust electromagnetic valve (21) is arranged on the exhaust pipe, and the exhaust electromagnetic valve (21) is connected with a controller (26);
an air pressure sensor (27) is installed on the oil tank (2), and the controller (26) is connected with the air pressure sensor (27) and controls the exhaust electromagnetic valve (21) to be opened when the air pressure in the oil tank (2) exceeds a threshold value.
3. The electrically heated conduction oil mold temperature controller according to claim 2, further comprising a display screen (25);
the display screen (25) is connected with the controller (26);
an oil return temperature sensor (13) is installed on the oil return pipe (30), and the controller (26) is connected with the oil return temperature sensor (13) to obtain oil return temperature and display the oil return temperature on the display screen (25).
4. The electrically heated conduction oil mold temperature machine according to claim 3,
an oil return stop valve (15), an oil return filter (14), an oil drain valve (28) and a circulating pump (4) are also arranged on the oil return pipe (30);
the oil drain valve (28) is connected with the controller (26);
a water outlet stop valve (16) is arranged on the water outlet pipe (32);
the water inlet pipe (31) is also provided with a water inlet filter (17);
an oil outlet pressure sensor (9) and an oil outlet stop valve (11) are also arranged on the oil outlet pipe (29);
the controller (26) is connected with the oil outlet pressure sensor (9) to acquire oil outlet pressure, and the oil outlet pressure is displayed through the display screen (25).
5. The electrically heated conduction oil mold temperature machine according to claim 4,
the oil tank (2) is provided with a liquid level sensor (8), an overflow sensor (18), an oil filling port (19) and a safety valve (20);
the controller (26) is connected with the liquid level sensor (8) to acquire the liquid level of the oil tank (2) and display the liquid level on the display screen (25).
6. The electrically heated conduction oil mold temperature machine according to claim 5,
the controller (26) is connected with the overflow sensor (18) and controls the oil drain valve (28) to be opened when detecting that the oil tank (2) overflows;
an oil return pressure sensor (12) is installed on the oil return pipe (30), and the controller (26) is connected with the oil return pressure sensor (12) to obtain the pressure of the oil return pipe and display the pressure on a display screen (25).
7. The electrically heated conduction oil mold temperature machine according to claim 4, further comprising a circulation pump control circuit (23);
the controller (26) controls the operation of the circulating pump (4) through the circulating pump control circuit (23);
the controller (26) adopts an AT89C51 singlechip or an STM32 series singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528921.7U CN215703828U (en) | 2021-07-05 | 2021-07-05 | Electric heating heat-conducting oil mold temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528921.7U CN215703828U (en) | 2021-07-05 | 2021-07-05 | Electric heating heat-conducting oil mold temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215703828U true CN215703828U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121528921.7U Active CN215703828U (en) | 2021-07-05 | 2021-07-05 | Electric heating heat-conducting oil mold temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215703828U (en) |
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2021
- 2021-07-05 CN CN202121528921.7U patent/CN215703828U/en active Active
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