CN220425374U - Constant-voltage constant-current constant-temperature testing device - Google Patents
Constant-voltage constant-current constant-temperature testing device Download PDFInfo
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- CN220425374U CN220425374U CN202321940835.6U CN202321940835U CN220425374U CN 220425374 U CN220425374 U CN 220425374U CN 202321940835 U CN202321940835 U CN 202321940835U CN 220425374 U CN220425374 U CN 220425374U
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000498 cooling water Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model relates to the technical field of testing devices, and discloses a constant-pressure constant-current constant-temperature testing device, which comprises a circulating water tank, wherein a plate heat exchanger is arranged on one side of the circulating water tank, a cooling water inlet filter and a cooling water inlet valve are arranged at the upper end of the top of the side surface of the plate heat exchanger, an internal circulating pump is arranged at the joint of the circulating water tank and the bottom end of the plate heat exchanger, a circulating water tank temperature sensor is arranged in the circulating water tank, a circulating water tank liquid outlet is arranged at the bottom of the circulating water tank, an expansion water tank is arranged at the top of the circulating water tank, a pressurizing electromagnetic valve and a pressure releasing electromagnetic valve are uniformly distributed on the outer surface of the circulating water tank and are used for improving or reducing the overall pressure base number of a system, so that the pump realizes constant flow through frequency conversion, and the cooperation of two groups of valves realizes the adjustment of the pressure environment output to a tested piece. Thus, the coordination of the temperature, pressure and flow of the output to the measured piece is ensured.
Description
Technical Field
The utility model relates to the technical field of testing devices, in particular to a constant-voltage constant-current constant-temperature testing device.
Background
The constant temperature and humidity testing device is also called a constant temperature and humidity testing machine and a constant temperature and humidity testing box, and is used for detecting equipment for testing the performance of materials in various environments and testing heat resistance of various materials. The device has the advantages that the device is cold-resistant, dry-resistant and moisture-resistant, is suitable for detecting quality of products such as electronics, electrical appliances, communication, instruments, vehicles, plastic products, metals, foods, chemistry, building materials, medical treatment, spaceflight and the like, the existing constant temperature and humidity device is poor in temperature control precision, intelligent supervision control is not carried out in the detection process, only manual management (sometimes negligence phenomenon) is carried out, detection data are unreal, interference is caused, and a judging result is influenced.
According to the disclosed constant temperature and humidity testing device (CN 213364546U, the refrigerator, the heater, the motor, the fan blades, the ventilating pipe, the water storage tank, the first supporting plate and the second supporting plate are adopted in the application, the refrigerator can be used for reducing the temperature, the heater can raise the temperature, the fan blades can upwards discharge the water treated gas, the humidity is increased in the box, the constant humidity and constant humidity environment effect is real, the detection quality and the research and development efficiency are improved, the temperature sensor, the humidity sensor and the control device are adopted, the temperature sensor and the humidity sensor can be used for transmitting the conditions in the testing box to the singlechip, the singlechip is used for receiving, the conditions in the testing box are reflected on the display screen, the detection data are prevented from being unrealistic, the interference is avoided, the judgment result is influenced, and the labor cost is reduced.
Disclosure of Invention
The utility model aims to provide a constant-voltage constant-current constant-temperature testing device for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a constant voltage constant current constant temperature testing arrangement, includes circulation tank, one side installation of circulation tank is provided with the plate heat exchanger, the side top upper end installation of plate heat exchanger is provided with the cooling water filter that intakes, the cooling water valve that intakes is installed to the one end of cooling water filter that intakes, the side bottom installation of plate heat exchanger is provided with the cooling water flow switch, one side installation of cooling water flow switch is provided with the cooling water outlet valve.
Preferably, the bottom junction installation of circulation tank and plate heat exchanger is provided with the internal circulation pump, the one side that the circulation tank is close to plate heat exchanger is provided with circulation tank liquid level, circulation tank internally mounted is provided with circulation tank temperature sensor, the one side that the circulation tank kept away from the circulation tank liquid level is installed and is provided with the circulation tank heater, the bottom installation of circulation tank is provided with the circulation tank leakage fluid dram.
Preferably, the top installation of circulation water tank is provided with expansion tank, expansion tank top outside installation is provided with the filling opening, the surface of circulation water tank is evenly distributed and is installed pressurization solenoid valve and pressure release solenoid valve, circulation water tank lower surface mounting is provided with the expansion tank leakage fluid dram.
Preferably, a return port valve is arranged at one end of the circulating water tank, an outlet valve is arranged at the top of the joint of the circulating water tank and the return port valve, a return port temperature sensor is arranged at one side of the outlet valve, and a return port pressure sensor is arranged at one side of the return port temperature sensor.
Preferably, a circulating pump is arranged at the joint of the circulating water tank and the return valve, an outlet filter is arranged at one end of the circulating pump, and a flow sensor and an oil outlet temperature sensor are arranged at one end of the outlet filter.
Preferably, an outlet pressure sensor is arranged at one end of the oil outlet temperature sensor.
Compared with the prior art, the utility model provides a constant-voltage constant-current constant-temperature testing device, which has the following beneficial effects:
1. this constant voltage constant current constant temperature testing arrangement, in order to avoid the heat that the machine operation produced when the test to lead to producing the data inaccuracy, maintain steady and guarantee the accuracy of data through setting up cooling water.
2. In order to avoid the overall change of flow resistance caused by medium viscosity, temperature change, flow change and the like when the pump is in operation, the constant-pressure constant-current constant-temperature testing device causes the change of flow or pressure when the pump is in fixed rotation speed. In order to solve the problem, two groups of electromagnetic valves are specially added, so that the temperature, pressure and flow coordination of the output to the measured piece is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure 1, a cooling water inlet valve; 2. a cooling water inlet filter; 3. a plate heat exchanger; 4. a cooling water outlet valve; 5. a cooling water flow switch; 6. a liquid adding port; 7. an expansion tank; 8. a liquid outlet of the expansion tank; 9. a circulation water tank; 10. circulating water tank level; 11. an internal circulation pump; 12. a liquid outlet of the circulating water tank; 13. a circulating water tank temperature sensor; 14. a circulation tank heater; 15. a circulation pump; 16. a pressurizing electromagnetic valve; 17. a pressure relief solenoid valve; 18. an outlet filter; 19. a flow sensor; 20. an oil outlet temperature sensor; 21. an outlet pressure sensor; 22. an outlet valve; 23. a return temperature sensor; 24. a return pressure sensor; 25. and a return valve.
Detailed Description
As shown in fig. 1, the present utility model provides a technical solution: a constant pressure constant current constant temperature testing device comprises a circulating water tank 9, wherein a plate heat exchanger 3 is arranged on one side of the circulating water tank 9, a cooling water inlet filter 2 is arranged at the upper end of the top of the side surface of the plate heat exchanger 3, a cooling water inlet valve 1 is arranged at one end of the cooling water inlet filter 2, a cooling water flow switch 5 is arranged at the bottom of the side surface of the plate heat exchanger 3, a cooling water outlet valve 4 is arranged on one side of the cooling water flow switch 5, an internal circulating pump 11 is arranged at the joint of the circulating water tank 9 and the bottom of the plate heat exchanger 3, a circulating water tank liquid level 10 is arranged on one surface of the circulating water tank 9 close to the plate heat exchanger 3, a circulating water tank temperature sensor 13 is arranged in the circulating water tank 9, a circulating water tank heater 14 is arranged on one surface of the circulating water tank 9 away from the circulating water tank liquid level 10, a circulating water tank liquid outlet 12 is arranged at the bottom of the circulating water tank 9, an expansion tank 7 is arranged at the top of the circulation tank 9, a liquid filling port 6 is arranged at the outer side of the top of the expansion tank 7, a pressurizing electromagnetic valve 16 and a pressure relief electromagnetic valve 17 are uniformly arranged on the outer surface of the circulation tank 9, an expansion tank liquid outlet 8 is arranged at the lower surface of the circulation tank 9, a return valve 25 is arranged at one end of the circulation tank 9, an outlet valve 22 is arranged at the top of the joint of the circulation tank 9 and the return valve 25, a return temperature sensor 23 is arranged at one side of the outlet valve 22, a return pressure sensor 24 is arranged at one side of the return temperature sensor 23, a circulation pump 15 is arranged at the joint of the circulation tank 9 and the return valve 25, an outlet filter 18 is arranged at one end of the circulation pump 15, a flow sensor 19 and an oil outlet temperature sensor 20 are arranged at one end of the outlet filter 18, an outlet pressure sensor 21 is installed at one end of the oil outlet temperature sensor 20.
Working principle: the tool is mainly used for testing a plurality of tested pieces, and has a testing environment with requirements on temperature, flow and pressure. The left side of the plate heat exchanger 3 is cooling water, the cooling water is externally connected with the cooling water (the low-temperature equipment is cooled by a fluorine path) for cooling the inside of the circulating water tank 9, and the medium of the circulating water tank 9 is driven by the internal circulating pump 11 to exchange heat with the cooling water through the plate heat exchanger 3. The circulation water tank 9 is internally provided with a circulation water tank heater 14 for heating or controlling the temperature of the oil. The device realizes the purpose of accurate temperature control by exchanging heat between the circulating water tank heater 14 and the water cooling plate and balancing. Then the circulating pump 15 automatically adjusts the rotation speed of the pump according to the flow or pressure required by the required measured piece supplied by the circulating oil outlet pump, thereby achieving the purpose of constant flow. The expansion tank 7 is used for water replenishment or thermal expansion and does not substantially participate in circulation.
It is known that in operation of a pump, the viscosity of the medium, the temperature change, the flow change, etc. all cause an overall change in the flow resistance, which results in a change in the flow or pressure of the pump at a fixed rotational speed. In order to solve the problem, two groups of electromagnetic valves are specially added for increasing or decreasing the overall pressure base of the system, so that the pump realizes constant flow through frequency conversion, and the cooperation of the two groups of valves realizes the adjustment of the pressure environment output to a tested piece. Thus, the coordination of the temperature, pressure and flow of the output to the measured piece is ensured.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. The constant-pressure constant-current constant-temperature testing device comprises a circulating water tank (9), and is characterized in that: the cooling water circulating system is characterized in that a plate heat exchanger (3) is arranged on one side of the circulating water tank (9), a cooling water inlet filter (2) is arranged at the upper end of the top of the side face of the plate heat exchanger (3), a cooling water inlet valve (1) is arranged at one end of the cooling water inlet filter (2), a cooling water flow switch (5) is arranged at the bottom of the side face of the plate heat exchanger (3), and a cooling water outlet valve (4) is arranged on one side of the cooling water flow switch (5).
2. The constant voltage and constant current testing device according to claim 1, wherein: the utility model discloses a circulating water heater, including circulating water tank (9), plate heat exchanger (3), circulating water tank (9) and plate heat exchanger (3) bottom junction installs and is provided with internal circulation pump (11), circulating water tank (9) are close to one side of plate heat exchanger (3) and are provided with circulating water tank liquid level (10), circulating water tank (9) internally mounted is provided with circulating water tank temperature sensor (13), circulating water tank (9) are kept away from one side of circulating water tank liquid level (10) and are installed and are provided with circulating water tank heater (14), circulating water tank (9) bottom installation is provided with circulating water tank leakage fluid dram (12).
3. The constant voltage and constant current testing device according to claim 1, wherein: the top installation of circulation water tank (9) is provided with expansion tank (7), expansion tank (7) top outside installation is provided with filling opening (6), pressurization solenoid valve (16) and pressure release solenoid valve (17) are all installed to the surface of circulation water tank (9) in a distributed way, surface mounting is provided with expansion tank leakage fluid dram (8) under circulation water tank (9).
4. The constant voltage and constant current testing device according to claim 1, wherein: the utility model discloses a circulating water tank, including circulating water tank (9), circulating water tank (9) one end is installed and is provided with return valve (25), circulating water tank (9) and return valve (25) junction top installation are provided with outlet valve (22), one side installation of outlet valve (22) is provided with return mouth temperature sensor (23), one side installation of return mouth temperature sensor (23) is provided with return mouth pressure sensor (24).
5. The constant voltage and constant current testing device according to claim 1, wherein: the circulating water tank (9) is provided with a circulating pump (15) at the joint of the circulating water tank and the return valve (25), one end of the circulating pump (15) is provided with an outlet filter (18), and one end of the outlet filter (18) is provided with a flow sensor (19) and an oil outlet temperature sensor (20).
6. The constant voltage and constant current testing device according to claim 5, wherein: one end of the oil outlet temperature sensor (20) is provided with an outlet pressure sensor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940835.6U CN220425374U (en) | 2023-07-24 | 2023-07-24 | Constant-voltage constant-current constant-temperature testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940835.6U CN220425374U (en) | 2023-07-24 | 2023-07-24 | Constant-voltage constant-current constant-temperature testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220425374U true CN220425374U (en) | 2024-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321940835.6U Active CN220425374U (en) | 2023-07-24 | 2023-07-24 | Constant-voltage constant-current constant-temperature testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220425374U (en) |
-
2023
- 2023-07-24 CN CN202321940835.6U patent/CN220425374U/en active Active
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