CN210155061U - Oil cooler heat exchange performance test device - Google Patents
Oil cooler heat exchange performance test device Download PDFInfo
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- CN210155061U CN210155061U CN201920201201.6U CN201920201201U CN210155061U CN 210155061 U CN210155061 U CN 210155061U CN 201920201201 U CN201920201201 U CN 201920201201U CN 210155061 U CN210155061 U CN 210155061U
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Abstract
The utility model discloses an oil cooler heat exchange performance test device, which is characterized by comprising a hydraulic oil circulating system and a cooling water circulating system, wherein the hydraulic oil circulating system is used for providing an oil source of the whole test device and heating hydraulic oil, and the cooling water circulating system is used for providing a water source of the whole test device and exchanging heat with the heated high-temperature hydraulic oil; the hydraulic oil circulating system comprises an oil tank, an outlet of the oil tank is respectively connected with a small-displacement hydraulic variable pump and a large-displacement hydraulic variable pump, and a large-range flow meter connected with the small-displacement hydraulic variable pump is connected with an oil inlet of the measured oil cooler through an oil inlet ball valve; the cooling water circulation system comprises a cooling water tower, an outlet of the cooling water tower is respectively connected with a water side small-caliber flow control valve, a water side medium-caliber flow control valve and a water side large-caliber flow control valve through centrifugal pumps, the water side small-caliber flow control valve is connected with a water inlet ball valve through a small-caliber flow meter, and the cooling water circulation system has the advantages that the heat exchange performance of the oil cooler can be accurately and comprehensively evaluated, and the required energy consumption of testing is reduced.
Description
Technical Field
The utility model relates to an oil cooler test device especially relates to an oil cooler heat exchange performance test device.
Background
The oil cooler is widely applied to hydraulic system control loops of engineering machinery and heavy machinery such as injection molding machines, oil presses, die casting machines and rolling mills, and has the working principle that high-temperature hydraulic oil and cooling media are subjected to efficient heat exchange in modes such as conduction and convection, the oil temperature is reduced to a normal temperature range, and the main machine is ensured to continuously and normally operate. The heat exchange performance of the oil cooler plays a very important role in improving the working efficiency and operational reliability of the main machine. If the heat exchange performance of the oil cooler does not meet the system requirements, the oil temperature of a hydraulic control loop is extremely high, the viscosity of oil is reduced, the leakage amount is increased, and finally the failure rate of equipment is obviously increased. Therefore, the heat exchange performance of the oil cooler has been highly regarded by manufacturers and application companies.
In oil cooler industry standards such as JB/T7356 and 2016, the heat exchange coefficient is adopted to represent the heat exchange performance of the oil cooler. The higher the heat exchange coefficient of the oil cooler, the better the heat exchange performance thereof is indicated. The existing oil cooler heat exchange performance test device mainly has the following technical defects: 1) the heat exchange coefficient is tested point by point, that is, when the heat loss of the equipment is less than or equal to 5%, the flow of the water side and the oil side of the oil cooler is regulated according to a specified proportion, and when the pressure drop of the water inlet/outlet/oil port meets the requirement, the heat exchange coefficient under the working condition is recorded, and the test is completed. A large number of test results show that: the oil/water flow rate interval of the oil cooler is wide, and the heat exchange coefficient of the oil cooler is greatly influenced by the change of the flow rate. The point-by-point test method has the disadvantages of complicated operation steps, large workload, difficulty in finding the optimal heat exchange coefficient value of the oil cooler and difficulty in comprehensively evaluating the heat exchange performance of the oil cooler; 2) an oil tank heating mode is usually adopted, and a temperature sensor in the oil tank is insensitive to temperature change in a pipeline, so that the temperature fluctuation of a test system is large, and the energy consumption is high; 3) the cooling medium is not adjusted in a sectional mode, the flow control is inaccurate, and the energy consumption in the test process is large.
Disclosure of Invention
The utility model aims to solve the technical problem that an oil cooler heat exchange performance test device that can accurate and evaluate oil cooler heat exchange performance comprehensively, and reduce the required energy consumption of test is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a heat exchange performance test device of an oil cooler comprises a hydraulic oil circulating system and a cooling water circulating system, wherein the hydraulic oil circulating system is used for providing an oil source of the whole test device and heating hydraulic oil, and the cooling water circulating system is used for providing a water source of the whole test device and exchanging heat with heated high-temperature hydraulic oil;
the hydraulic oil circulating system comprises an oil tank, wherein an outlet of the oil tank is respectively connected with a small-displacement hydraulic variable pump and a large-displacement hydraulic variable pump, the small-displacement hydraulic variable pump is connected with a large-range flow meter through an oil side small-caliber flow control valve, the large-displacement hydraulic variable pump is connected with the large-range flow meter through an oil side large-caliber flow control valve, the large-range flow meter is connected with an oil inlet of an oil cooler to be measured through an oil inlet ball valve, and an oil outlet of the oil cooler to be measured is connected with an inlet of the oil tank sequentially through an oil outlet ball valve, an oil side servo valve and a pipeline heater;
the cooling water circulation system comprises a cooling water tower, wherein an outlet of the cooling water tower is respectively connected with a water side small-caliber flow control valve, a water side medium-caliber flow control valve and a water side large-caliber flow control valve through a centrifugal pump, the water side small-caliber flow control valve is connected with a water inlet ball valve through a small-caliber flow meter, the water side medium-caliber flow control valve is connected with the water inlet ball valve through a medium-caliber flow meter, the water side large-caliber flow control valve is connected with the water inlet ball valve through a large-caliber flow meter, the water inlet ball valve is connected with a water inlet of the measured oil cooler, and a water outlet of the measured oil cooler is sequentially connected with an inlet of the cooling water tower through a water outlet ball valve, a water side servo valve and a cooler.
The industrial personal computer is further included, and the water side small-caliber flow control valve, the water side medium-caliber flow control valve, the water side large-caliber flow control valve, the oil side small-caliber flow control valve and the oil side large-caliber flow control valve are respectively connected with the industrial personal computer.
The water side small-caliber flow control valve, the water side medium-caliber flow control valve, the water side large-caliber flow control valve, the oil side small-caliber flow control valve and the oil side large-caliber flow control valve are all provided with servo control systems for controlling the opening degree of the valves through the industrial personal computer.
The cooler and the pipeline heater are respectively connected with the industrial personal computer.
A water inlet thermometer and a water inlet pressure gauge are arranged between the water inlet ball valve and the measured oil cooler; a water outlet thermometer and a water outlet pressure gauge are arranged between the water outlet ball valve and the measured oil cooler; an oil inlet thermometer and an oil inlet pressure gauge are arranged between the oil inlet ball valve and the measured oil cooler; an oil outlet thermometer and an oil outlet pressure gauge are arranged between the oil outlet ball valve and the measured oil cooler, and the industrial personal computer acquires data of the water inlet thermometer, the water outlet thermometer, the water inlet pressure gauge, the water outlet pressure gauge, the oil inlet thermometer, the oil outlet thermometer, the oil inlet pressure gauge and the water outlet oil pressure gauge in real time.
The oil tank in be provided with electric heater, cooling tower with the oil tank all be equipped with temperature sensor.
Compared with the prior art, the utility model has the advantages of: the utility model relates to an oil cooler heat exchange performance test device adopts the circulation test method to obtain the heat exchange coefficient of oil cooler under different oil/discharge, can be accurate and evaluate oil cooler heat exchange performance comprehensively, has improved detection efficiency. Meanwhile, in the flow regulation process of the high-temperature hydraulic oil and the cooling water, temperature compensation is carried out according to the temperature fluctuation of each loop, the stability of temperature control of the testing device is improved, and the energy consumption required by testing is reduced.
Drawings
FIG. 1 is a schematic structural view of a heat exchange performance testing device of an oil cooler of the present invention; in the figure, 1, a cooling water tower, 2, a centrifugal pump, 3, a water side small-caliber flow control valve, 4, a water side medium-caliber flow control valve, 5, a water side large-caliber flow control valve, 6, a small-caliber flow meter, 7, a medium-caliber flow meter, 8, a large-caliber flow meter, 9, a water inlet ball valve, 10, an oil cooler, 11, a water outlet ball valve, 12, a water side servo valve, 13, a cooler, 14, an oil tank, 15, an electric heater, 16, a small-displacement hydraulic variable pump, 17, a large-displacement hydraulic variable pump, 18, an oil side small-caliber flow control valve, 19, an oil side large-caliber flow control valve, 20, a large-displacement flow meter, 21, an oil inlet ball valve, 22, an oil outlet ball valve, 23, an oil side servo valve, 24, a pipeline heater, 25, an industrial personal computer, 26, a water inlet thermometer, 27, a water outlet thermometer, 28, an oil inlet thermometer, 30. a water inlet pressure gauge 31, a water outlet pressure gauge 32, an oil inlet pressure gauge 33 and an oil outlet pressure gauge.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
An oil cooler 10 heat exchange performance test device is shown in fig. 1 and comprises a hydraulic oil circulating system and a cooling water circulating system, wherein the hydraulic oil circulating system is used for providing an oil source of the whole test device and heating hydraulic oil, and the cooling water circulating system is used for providing a water source of the whole test device and exchanging heat with heated high-temperature hydraulic oil; the hydraulic oil circulating system comprises an oil tank 14, an outlet of the oil tank 14 is respectively connected with a small-displacement hydraulic variable pump 16 and a large-displacement hydraulic variable pump 17, the small-displacement hydraulic variable pump 16 is connected with a large-range flow meter 20 through an oil side small-caliber flow control valve 18, the large-displacement hydraulic variable pump 17 is connected with the large-range flow meter 20 through an oil side large-caliber flow control valve 19, the large-range flow meter 20 is connected with an oil inlet of the measured oil cooler 10 through an oil inlet ball valve 21, and an oil outlet of the measured oil cooler 10 is connected with an inlet of the oil tank 14 through an oil outlet ball valve 22, an oil side servo valve 23 and a pipeline heater 24 in sequence; cooling water circulation system includes cooling tower 1, cooling tower 1's export is connected with water side small-bore flow control valve 3 respectively through centrifugal pump 2, water side medium-bore flow control valve 4 and water side heavy-bore flow control valve 5, water side small-bore flow control valve 3 is connected with into water ball valve 9 through little latus rectum flowmeter 6, water side medium-bore flow control valve 4 is connected with into water ball valve 9 through medium latus rectum flowmeter 7, water side heavy-bore flow control valve 5 is through being connected with into water ball valve 9 through big latus rectum flowmeter 8, the water inlet ball valve 9 and the water inlet of being surveyed oil cooler 10, the delivery port that is surveyed oil cooler 10 loops through out water ball valve 11, water side servo valve 12 and the access connection of cooler 13 and cooling tower 1.
In this embodiment, as shown in fig. 1, the apparatus further includes an industrial personal computer 25, and the water side small-caliber flow control valve 3, the water side medium-caliber flow control valve 4, the water side large-caliber flow control valve 5, the oil side small-caliber flow control valve 18, and the oil side large-caliber flow control valve 19 are respectively connected to the industrial personal computer 25. The water side small-caliber flow control valve 3, the water side medium-caliber flow control valve 4, the water side large-caliber flow control valve 5, the oil side small-caliber flow control valve 18 and the oil side large-caliber flow control valve 19 are all provided with servo control systems for controlling the opening degree of the valves through an industrial personal computer 25. The cooler 13 and the pipe heater 24 are connected to an industrial personal computer 25.
In this embodiment, as shown in fig. 1, a water inlet thermometer 26 and a water inlet pressure gauge 30 are arranged between the water inlet ball valve 9 and the measured oil cooler 10; a water outlet thermometer 27 and a water outlet pressure gauge 31 are arranged between the water outlet ball valve 11 and the measured oil cooler 10; an oil inlet thermometer 28 and an oil inlet pressure gauge 32 are arranged between the oil inlet ball valve 21 and the measured oil cooler 10; an oil outlet thermometer 29 and an oil outlet pressure gauge 33 are arranged between the oil outlet ball valve 22 and the measured oil cooler 10, and the industrial personal computer 25 collects data of a water inlet thermometer 26, a water outlet thermometer 27, a water inlet pressure gauge 30, a water outlet pressure gauge 31, an oil inlet thermometer 28, an oil outlet thermometer 29, an oil inlet pressure gauge 32 and an oil outlet pressure gauge in real time. An electric heater 15 is arranged in the oil tank 14, and the cooling water tower 1 and the oil tank 14 are both provided with temperature sensors.
The above embodiments are further illustrative of the present invention, but the scope of the present invention is subject to the claims.
Claims (6)
1. The utility model provides an oil cooler heat exchange performance test device which characterized in that: the system comprises a hydraulic oil circulating system and a cooling water circulating system, wherein the hydraulic oil circulating system is used for providing an oil source of the whole testing device and heating hydraulic oil, and the cooling water circulating system is used for providing a water source of the whole testing device and exchanging heat with the heated high-temperature hydraulic oil;
the hydraulic oil circulating system comprises an oil tank, wherein an outlet of the oil tank is respectively connected with a small-displacement hydraulic variable pump and a large-displacement hydraulic variable pump, the small-displacement hydraulic variable pump is connected with a large-range flow meter through an oil side small-caliber flow control valve, the large-displacement hydraulic variable pump is connected with the large-range flow meter through an oil side large-caliber flow control valve, the large-range flow meter is connected with an oil inlet of an oil cooler to be measured through an oil inlet ball valve, and an oil outlet of the oil cooler to be measured is connected with an inlet of the oil tank sequentially through an oil outlet ball valve, an oil side servo valve and a pipeline heater;
the cooling water circulation system comprises a cooling water tower, wherein an outlet of the cooling water tower is respectively connected with a water side small-caliber flow control valve, a water side medium-caliber flow control valve and a water side large-caliber flow control valve through a centrifugal pump, the water side small-caliber flow control valve is connected with a water inlet ball valve through a small-caliber flow meter, the water side medium-caliber flow control valve is connected with the water inlet ball valve through a medium-caliber flow meter, the water side large-caliber flow control valve is connected with the water inlet ball valve through a large-caliber flow meter, the water inlet ball valve is connected with a water inlet of the measured oil cooler, and a water outlet of the measured oil cooler is sequentially connected with an inlet of the cooling water tower through a water outlet ball valve, a water side servo valve and a cooler.
2. An oil cooler heat exchange performance test device according to claim 1, characterized in that: the industrial personal computer is further included, and the water side small-caliber flow control valve, the water side medium-caliber flow control valve, the water side large-caliber flow control valve, the oil side small-caliber flow control valve and the oil side large-caliber flow control valve are respectively connected with the industrial personal computer.
3. An oil cooler heat exchange performance test device according to claim 2, characterized in that: the water side small-caliber flow control valve, the water side medium-caliber flow control valve, the water side large-caliber flow control valve, the oil side small-caliber flow control valve and the oil side large-caliber flow control valve are all provided with servo control systems for controlling the opening degree of the valves through the industrial personal computer.
4. An oil cooler heat exchange performance test device according to claim 2, characterized in that: the cooler and the pipeline heater are respectively connected with the industrial personal computer.
5. An oil cooler heat exchange performance test device according to claim 2, characterized in that: a water inlet thermometer and a water inlet pressure gauge are arranged between the water inlet ball valve and the measured oil cooler; a water outlet thermometer and a water outlet pressure gauge are arranged between the water outlet ball valve and the measured oil cooler; an oil inlet thermometer and an oil inlet pressure gauge are arranged between the oil inlet ball valve and the measured oil cooler; an oil outlet thermometer and an oil outlet pressure gauge are arranged between the oil outlet ball valve and the oil cooler to be measured, and the industrial personal computer acquires data of the water inlet thermometer, the water outlet thermometer, the water inlet pressure gauge, the water outlet pressure gauge, the oil inlet thermometer, the oil outlet thermometer, the oil inlet pressure gauge and the oil outlet pressure gauge in real time.
6. An oil cooler heat exchange performance test device according to claim 1, characterized in that: the oil tank in be provided with electric heater, cooling tower with the oil tank all be equipped with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201201.6U CN210155061U (en) | 2019-02-15 | 2019-02-15 | Oil cooler heat exchange performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201201.6U CN210155061U (en) | 2019-02-15 | 2019-02-15 | Oil cooler heat exchange performance test device |
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| Publication Number | Publication Date |
|---|---|
| CN210155061U true CN210155061U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920201201.6U Expired - Fee Related CN210155061U (en) | 2019-02-15 | 2019-02-15 | Oil cooler heat exchange performance test device |
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| CN (1) | CN210155061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884113A (en) * | 2019-02-15 | 2019-06-14 | 宁波市产品质量监督检验研究院 | A kind of oil cooler heat exchange performance experimental rig and its test method |
-
2019
- 2019-02-15 CN CN201920201201.6U patent/CN210155061U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884113A (en) * | 2019-02-15 | 2019-06-14 | 宁波市产品质量监督检验研究院 | A kind of oil cooler heat exchange performance experimental rig and its test method |
| CN109884113B (en) * | 2019-02-15 | 2023-12-12 | 宁波市产品质量监督检验研究院 | Oil cooler heat exchange performance test device and test method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200317 Termination date: 20210215 |