CN217682591U - Press sediment machine circulative cooling device for hydraulic system - Google Patents
Press sediment machine circulative cooling device for hydraulic system Download PDFInfo
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- CN217682591U CN217682591U CN202221470631.6U CN202221470631U CN217682591U CN 217682591 U CN217682591 U CN 217682591U CN 202221470631 U CN202221470631 U CN 202221470631U CN 217682591 U CN217682591 U CN 217682591U
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Abstract
The utility model relates to a press sediment machine circulative cooling device for hydraulic system, including cooling tube and heat transfer pipeline, the both ends of cooling tube are connected with gas supply line and exhaust duct respectively, and the cooling tube is connected with the nitrogen gas source through the gas supply line, is provided with pneumatic control valve between nitrogen gas source and the gas supply line, and pneumatic control valve is connected with the control unit, and the control unit includes controller and temperature sensor, and temperature sensor sets up in the oil tank, and the controller detects the valve aperture of parameter adjustment pneumatic control valve according to temperature sensor; the exhaust duct is provided with the detection pipeline, and the detection pipeline is used for oil leak detection. The utility model discloses set up nitrogen gas source and gas supply line, it is little that gaseous strikes the pipeline, and nitrogen gas cooling effect is superior to the water-cooling, sets up pneumatic control valve and the control unit simultaneously, can let in the volume to nitrogen gas according to the oil temperature of oil pumping station and adjust to set up the detection pipeline and carry out the oil leak detection, improved the reliability of hydraulic oil cooling operation, practiced thrift manufacturing cost.
Description
Technical Field
The utility model relates to an aluminium article processing field, concretely relates to press sediment machine circulative cooling device for hydraulic system.
Background
The slag press adopts hydraulic drive so that the slag press sets a hydraulic control device, during operation, the hydraulic oil in the oil pump station is pressed into the hydraulic cylinder by the motor, the hydraulic cylinder pushes the hydraulic rod to press the pressure head of the slag press into the slag press pot which is horizontally placed, the aluminum slag is extruded, and the residual liquid aluminum in the aluminum slag is extruded from the tapping hole at the bottom of the slag press pot, so that the aluminum slag is collected and reused.
In order to achieve the cooling effect, oil in the oil pump station enters the cooler through the oil way, as shown in the attached drawing 2, a water way is arranged in the cooler, and cold water is introduced into the water way to exchange heat with hot oil in an oil way pipeline in the cooler, so that the effect of cooling the hydraulic oil is achieved.
Above-mentioned device has the drawback when using, and the cooling medium of at first device is water, and water is great to the frictional force of pipe wall when flowing, carries out the heat exchange operation under this condition, easily leads to the water pipe fracture seepage, presses the sediment machine to be intermittent type starting equipment in addition, but water supply system needs full opening operation to cause the production extravagant. And current cooling device does not possess the oil leak and detects the function, and oil pump station is totally closed system, and whether cooling part oil seepage needs to dismantle the pipeline just can inspect, leads to the unable timely detection of oil seepage during the operation and discovers.
Disclosure of Invention
The utility model provides a solve above-mentioned problem, provide a sediment machine is circulative cooling device for hydraulic system, set up nitrogen gas air supply and gas supply line, it is gaseous little to the pipeline impact, and nitrogen gas cooling effect is superior to the water-cooling, sets up pneumatic control valve and the control unit simultaneously, can adjust nitrogen gas let-in volume according to the oil temperature of oil pump station to set up the detection pipeline and carry out the oil leak detection, improved the reliability of hydraulic oil cooling operation, practiced thrift manufacturing cost.
In order to realize the purpose, the technical scheme of the utility model is that:
a circulating cooling device for a hydraulic system of a slag press machine comprises an oil pump station, wherein the oil pump station comprises an oil tank, the oil pump station is provided with a cooling mechanism, the cooling mechanism comprises a cooler, a heat exchange pipeline is arranged inside the cooler, an oil return pipeline and an oil inlet pipeline are arranged between the heat exchange pipeline and the oil pump station, the oil pump station is connected with the heat exchange pipeline through the oil return pipeline and the oil inlet pipeline to form circulation, a cooling pipeline is further arranged inside the cooler and is in contact with the heat exchange pipeline, the two ends of the cooling pipeline are respectively connected with an air supply pipeline and an exhaust pipeline, the cooling pipeline is connected with a nitrogen source through the air supply pipeline, a pneumatic regulating valve is arranged between the nitrogen source and the air supply pipeline and is connected with a control unit, the control unit comprises a controller and a temperature sensor, the temperature sensor is arranged inside the oil tank, the temperature sensor is connected with the controller, and the controller detects parameters according to regulate the valve opening of the pneumatic regulating valve;
the exhaust pipeline is provided with a detection pipeline, the detection pipeline is arranged on the exhaust pipeline and connected with the exhaust pipeline through a three-way pipe, the detection pipeline comprises a fourth manual valve, and the detection pipeline is used for oil leakage detection.
Through setting up the gas supply line, exhaust duct combines the nitrogen gas source, realizes adopting nitrogen gas to carry out the hydraulic oil cooling operation as the medium, sets up pneumatic control valve at exhaust duct, and pneumatic control valve practices thrift the cost according to oil pump station oil temperature automatic control valve opening, sets up the detection pipeline and is used for the oil leak detection, need not the shut down during the operation just can carry out the oil leak detection, the routine maintenance of being convenient for.
Furthermore, one end of the pneumatic control valve close to the cooling pipeline is provided with a first manual valve, and one side of the exhaust pipeline close to the cooling pipeline is provided with a third manual valve corresponding to the first manual valve.
The first manual valve and the third manual valve are arranged and are in normally open states, and when maintenance is carried out, the valve ports of the first manual valve and the third manual valve are closed, so that the passage between the cooling pipe and the air supply pipeline and the passage between the cooling pipe and the air exhaust pipeline are blocked, and maintenance and detection are facilitated.
Furthermore, the detection pipeline further comprises a second manual valve, and the second manual valve is arranged on the exhaust pipeline and behind the fourth manual valve.
Because the exhaust duct has certain length, consequently set up the manual valve of second in the detection pipeline, the manual valve of second is normally open under non-detecting state, fourth manual valve is closed, the manual valve of second is closed under detecting state, fourth manual valve is opened, if there is oil leakage in the cooler and gets into the exhaust duct, nitrogen gas is obstructed from the manual valve of detection pipeline fourth outflow in the manual valve position of second, whether oil leak can be judged to the cooler according to whether there is hydraulic oil discharge, need not to dismantle, carry out the oil leak and detect under the condition of not shutting down.
Further, the controller comprises an MCU chip, and the output end of the temperature sensor is connected with an ADC pin of the MCU chip.
Further, the controller further comprises a driving module, the output end of the MCU chip is connected with the driving module, and the pneumatic regulating valve is connected with the power supply through the driving module to form a loop.
The MCU chip changes the valve opening of the pneumatic control valve by adopting a PWM modulation method through the driving module and realizes the change of the valve opening of the pneumatic control valve along with the parameters of the temperature sensor by combining a PID control mode, so that the hydraulic oil temperature is always kept at the optimal temperature, and the energy-saving effect is achieved.
Through the technical scheme, the beneficial effects of the utility model are that:
(1) The utility model discloses a set up gas supply line and exhaust duct and make the nitrogen gas air supply connect the cooling tube, adopt nitrogen gas to cool down as the medium to hydraulic oil, avoid the water cooling medium to reduce conveying pipe corrosive wear to the corrosive friction of conveying pipe wall, nitrogen gas plays the guard action to pipe inner wall simultaneously, reduces the oxidation rate of pipeline. On the other hand is provided with pneumatic control valve on gas supply line, and pneumatic control valve is connected with the control unit simultaneously, and the control unit includes controller and temperature sensor, and temperature sensor detects the oil temperature in the oil pumping station, and the controller detects the valve aperture of parameter regulation pneumatic control valve according to temperature sensor, avoids nitrogen gas extravagant, has practiced thrift manufacturing cost.
(2) The utility model discloses be provided with the detection pipeline, the detection pipeline sets up on exhaust duct, can detect the inside oil leak condition whether appears of cooler through the detection pipeline under the circumstances that the system does not shut down.
Drawings
Fig. 1 is a schematic view of a pipeline structure of a circulating cooling device for a hydraulic system of a slag press machine of the present invention;
FIG. 2 is a schematic diagram of a conventional water cooling pipeline;
fig. 3 is an electrical schematic diagram of the circulating cooling device for the hydraulic system of the slag press machine of the present invention.
The reference numbers in the drawings are as follows: the system comprises an oil pump station 1, a cooler 2, a nitrogen gas source 3, a pneumatic regulating valve 4, a controller 5, a temperature sensor 6, a fourth manual valve 7, a first manual valve 8, a third manual valve 9, a second manual valve 10 and a driving module 11.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
example 1
As shown in fig. 1 to 3, a circulating cooling device for a slag press machine hydraulic system comprises an oil pump station 1, wherein the oil pump station 1 comprises an oil tank, the oil pump station 1 is provided with a cooling mechanism, the cooling mechanism comprises a cooler 2, a heat exchange pipeline is arranged inside the cooler 2, an oil return pipeline and an oil inlet pipeline are arranged between the heat exchange pipeline and the oil pump station 1, the oil pump station 1 is connected with the heat exchange pipeline through the oil return pipeline and the oil inlet pipeline to form circulation, a cooling pipeline is further arranged inside the cooler 2 and is in contact with the heat exchange pipeline, two ends of the cooling pipeline are respectively connected with an air supply pipeline and an exhaust pipeline, the cooling pipeline is connected with a nitrogen source 3 through the air supply pipeline, a pneumatic regulating valve 4 is arranged between the nitrogen source 3 and the air supply pipeline, the pneumatic regulating valve 4 is connected with a control unit, the control unit comprises a controller 5 and a temperature sensor 6, the temperature sensor 6 is arranged inside the oil tank, the temperature sensor 6 is connected with the controller 5, and the controller 5 adjusts the valve opening of the pneumatic regulating valve 4 according to the detection parameters of the temperature sensor 6;
the exhaust pipeline is provided with a detection pipeline, the detection pipeline is arranged on the exhaust pipeline and connected with the exhaust pipeline through a three-way pipe, the detection pipeline comprises a fourth manual valve 7, and the detection pipeline is used for oil leakage detection.
In one embodiment, a first manual valve 8 is disposed at one end of the pneumatic control valve 4 close to the cooling pipeline, and a third manual valve 9 is disposed at one side of the exhaust pipeline close to the cooling pipeline corresponding to the first manual valve 8.
In an embodiment, the detection pipeline further includes a second manual valve 10, and the second manual valve 10 is disposed on the exhaust pipeline and behind the fourth manual valve 7.
As an implementation manner, the controller 5 includes an MCU chip, and the output end of the temperature sensor 6 is connected to an ADC pin of the MCU chip.
As an implementation manner, the controller 5 further includes a driving module 11, an output end of the MCU chip is connected to the driving module 11, and the pneumatic control valve 4 is connected to the power supply through the driving module 11 to form a loop.
In this embodiment, the MCU chip is the STM32 singlechip, drive module 11 includes driver chip, driver chip specifically adopts l6203 type driver chip, pneumatic control valve 4 is electromagnetic type pneumatic control valve 4, and drive module 11 is connected to pneumatic control valve 4's control end.
The cooling operation will be described with reference to the above embodiment:
in the operation state, the first manual valve 8 and the third manual valve 9 are in an open state, the nitrogen gas source 3 is provided with a nitrogen main valve, after the nitrogen main valve is opened, nitrogen enters a cooling pipeline through the pneumatic regulating valve 4 and the first manual valve 8, heat exchange is carried out between the nitrogen and hydraulic oil in the heat exchange pipeline in the cooler 2, the nitrogen is discharged from the third manual valve 9 and is continuously discharged through the second manual valve 10, in the process, the oil temperature in the oil pump station 1 is gradually reduced, the temperature sensor 6 detects the oil temperature in the oil pump station 1 in real time, and along with the reduction of the oil temperature in the oil pump station 1, the MCU chip changes the valve opening of the pneumatic regulating valve 4 through the driving module 11 by adopting a PWM (pulse width modulation) method to reduce the valve opening, so that the nitrogen inflow is reduced, when the oil temperature in the oil pump station 1 rises, the MCU chip increases the valve opening through the driving module 11 to increase the nitrogen inflow, and the oil temperature in the oil pump station 1 is at an appropriate temperature.
Detecting whether an oil leakage situation occurs inside the cooler 2:
and opening the fourth manual valve 7 to communicate the detection pipeline with the exhaust pipeline, closing the second manual valve 10, closing the exhaust pipeline behind the second manual valve 10, discharging the heat-exchanged nitrogen from the third manual valve 9, and allowing the nitrogen to enter the detection pipeline through the fourth manual valve 7, wherein if oil leaks from the cooler 2, hydraulic oil flows out from an outlet of the detection pipeline, and if no hydraulic oil flows out, the cooler 2 is proved to have no oil leakage phenomenon.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (5)
1. The circulating cooling device for the hydraulic system of the slag press comprises an oil pump station (1), wherein the oil pump station (1) comprises an oil tank, the oil pump station (1) is provided with a cooling mechanism, the cooling mechanism comprises a cooler (2), a heat exchange pipeline is arranged inside the cooler (2), an oil return pipeline and an oil inlet pipeline are arranged between the heat exchange pipeline and the oil pump station (1), the oil pump station (1) is connected with the heat exchange pipeline through the oil return pipeline and the oil inlet pipeline to form circulation, a cooling pipeline is further arranged inside the cooler (2), the cooling pipeline is characterized in that the cooling pipeline is in contact with the heat exchange pipeline, two ends of the cooling pipeline are respectively connected with an air supply pipeline and an exhaust pipeline, the cooling pipeline is connected with a nitrogen source (3) through the air supply pipeline, a pneumatic regulating valve (4) is arranged between the nitrogen source (3) and the air supply pipeline, the pneumatic regulating valve (4) is connected with a control unit, the control unit comprises a controller (5) and a temperature sensor (6), the temperature sensor (6) is arranged inside the oil tank, the temperature sensor (6) is connected with the controller (5), and the opening degree of the pneumatic regulating valve (4) is adjusted according to the temperature sensor (6);
the exhaust pipeline is provided with a detection pipeline, the detection pipeline is arranged on the exhaust pipeline and connected with the exhaust pipeline through a three-way pipe, the detection pipeline comprises a fourth manual valve (7), and the detection pipeline is used for oil leakage detection.
2. The circulating cooling device for the hydraulic system of the slag press machine according to claim 1, characterized in that one end of the pneumatic control valve (4) close to the cooling pipeline is provided with a first manual valve (8), and one side of the exhaust pipeline close to the cooling pipeline is provided with a third manual valve (9) corresponding to the first manual valve (8).
3. The circulating cooling device for the hydraulic system of the slag press machine according to claim 2, characterized in that the detection pipeline further comprises a second manual valve (10), and the second manual valve (10) is arranged on the exhaust pipeline and behind a fourth manual valve (7).
4. The circulating cooling device for the hydraulic system of the slag press machine according to claim 1, characterized in that the controller (5) comprises an MCU chip, and the output end of the temperature sensor (6) is connected with an ADC pin of the MCU chip.
5. The circulating cooling device for the hydraulic system of the slag press machine according to claim 4, wherein the controller (5) further comprises a driving module (11), the output end of the MCU chip is connected with the driving module (11), and the pneumatic regulating valve (4) is connected with a power supply through the driving module (11) to form a loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221470631.6U CN217682591U (en) | 2022-06-14 | 2022-06-14 | Press sediment machine circulative cooling device for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221470631.6U CN217682591U (en) | 2022-06-14 | 2022-06-14 | Press sediment machine circulative cooling device for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217682591U true CN217682591U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221470631.6U Active CN217682591U (en) | 2022-06-14 | 2022-06-14 | Press sediment machine circulative cooling device for hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217682591U (en) |
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2022
- 2022-06-14 CN CN202221470631.6U patent/CN217682591U/en active Active
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