CN215768472U - Nitrogen-filled drying detection equipment suitable for photoelectric equipment - Google Patents
Nitrogen-filled drying detection equipment suitable for photoelectric equipment Download PDFInfo
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- CN215768472U CN215768472U CN202121853657.4U CN202121853657U CN215768472U CN 215768472 U CN215768472 U CN 215768472U CN 202121853657 U CN202121853657 U CN 202121853657U CN 215768472 U CN215768472 U CN 215768472U
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Abstract
The utility model discloses nitrogen-filled drying detection equipment suitable for photoelectric equipment, which comprises a nitrogen-filled loop and an air pumping loop, wherein the nitrogen-filled loop is connected with the air pumping loop; the nitrogen charging loop starts from an air inlet interface used for connecting a nitrogen source and is sequentially connected with an air inlet pressure regulating valve, an air inlet pressure sensor, an air charging electromagnetic valve, an air charging speed regulating valve, an air charging pressure sensor and an air charging interface; the air pumping loop starts from an air pumping pump and is sequentially connected with an exhaust electromagnetic valve, a humidity sensor, an air pumping electromagnetic valve and an air pumping interface; the nitrogen charging loop and the air pumping loop are connected through a bypass electromagnetic valve pipeline, and the connection points are respectively behind the air charging speed regulating valve and in front of the air pumping electromagnetic valve; all sensors are connected with a PLC controller, and the air suction pump and all electromagnetic valves are controlled by the PLC controller. The utility model controls the air inflation, air exhaust and humidity detection of the equipment through the PLC programming, is suitable for the drying detection of the photoelectric equipment under the field environment condition, realizes automation, is convenient and fast, and shortens the nitrogen filling time.
Description
Technical Field
The utility model relates to nitrogen filling equipment, in particular to small nitrogen filling drying detection equipment.
Background
The requirement of the internal optical parts of the optoelectronic device on the environmental humidity is high, but because various mechanical and electrical interfaces exist in the shell to cause air leakage, the shell is required to be dried by filling high-purity nitrogen (dew point-50 degrees; purity 99.999 percent) after being used in a severe environment or every 3 months, and whether obvious air leakage exists is required to be detected.
The traditional photoelectric equipment drying mode is that a high-purity nitrogen cylinder is adopted to connect a pressure reducing valve, a gas pipe and an inflating nozzle are connected to conduct gas inlet and nitrogen filling on the equipment, a gas outlet is opened, the nitrogen filling pressure of the equipment is adjusted through a manual adjusting pressure reducing valve, the pressure value of a pressure gauge is observed manually, the proper inflating pressure is adjusted, the pressure gauge and the inflating condition of the equipment need to be observed manually in the drying process, the humidity index inside the nitrogen filled equipment cannot be read accurately, and whether the nitrogen filling process is finished or not is judged only by manual experience.
In addition, part of the photoelectric equipment only has one air inlet and outlet, and air exchange and gas detection cannot be realized.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide nitrogen-filled drying detection equipment suitable for photoelectric equipment.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a nitrogen-filled drying detection device suitable for photoelectric equipment is provided, the whole device is a box body with a panel, and the device comprises a nitrogen-filled loop and an air-extracting loop; the nitrogen charging loop starts from an air inlet interface for connecting a nitrogen source and is sequentially connected with an air inlet pressure regulating valve, an air inlet pressure sensor, an air charging electromagnetic valve, an air charging speed regulating valve, an air charging pressure sensor and an air charging interface; the air pumping loop starts from an air pumping pump and is sequentially connected with an exhaust electromagnetic valve, a humidity sensor, an air pumping electromagnetic valve and an air pumping interface; the nitrogen charging loop and the air pumping loop are connected through a bypass electromagnetic valve pipeline, and the connection points are respectively behind the air charging speed regulating valve and in front of the air pumping electromagnetic valve; all the sensors are connected with a PLC controller, and the air suction pump and all the electromagnetic valves are controlled by the PLC controller.
Further, the air pump is a diaphragm vacuum pump.
Furthermore, the panel is provided with the PLC controller and an attached liquid crystal touch display screen, an air inlet interface, an air inflation interface, an air exhaust interface, an air inflation speed regulating valve, an air inlet pressure regulating valve, a power interface and a power switch.
Furthermore, the air inlet interface, the air inflation interface and the air exhaust interface are stainless steel C-shaped quick connectors.
Further, the box body is a safety plastic protection box with the protection grade of IP 67.
The equipment controls the inflation and the air exhaust of the equipment through the PLC controller, so that the equipment can select three working modes;
conventional drying mode: is suitable for the photoelectric equipment with an air inlet and an air outlet; the connection mode is that the air inlet interface of the device is connected with a high-purity nitrogen source, the air charging interface is connected with the air inlet of the photoelectric device, and the air exhaust interface is connected with the air outlet of the photoelectric device; adjusting an air inlet pressure regulating valve to set air pressure according to the technical requirement of drying the photoelectric equipment as required; the PLC controller controls the inflation electromagnetic valve and the air exhaust electromagnetic valve to be opened, the bypass electromagnetic valve and the exhaust electromagnetic valve are closed, the photoelectric equipment is inflated and dried, the photoelectric equipment is in an inflation state at the moment, and after inflation is finished, the exhaust electromagnetic valve is opened to enter an exhaust state; after the pressure is reduced to normal, the exhaust electromagnetic valve is closed, and the inflation electromagnetic valve is opened; maintaining normal inflation sequence inflation-deflation-inflation-deflation. And after the dew point is reduced to a specified value, the air outlet is closed, the air inlet is closed after continuously inflating to a set value, the humidity is detected by the humidity sensor, and the air exhaust electromagnetic valve is closed after meeting the requirement, so that the equipment is in an inflation state.
Fast drying mode: the drying device is suitable for photoelectric equipment with an air inlet and an air outlet, the connection mode is the same as that of a conventional drying mode, the working mode is the same, the difference is that an exhaust electromagnetic valve is not opened in the exhaust process, an air pump is opened to accelerate exhaust, drying is accelerated according to air exhaust-air inlet-air exhaust-air inlet circulation, the air outlet is closed when the dew point is reduced to a specified value, and the air is inflated to a set value according to requirements, so that the time for drying the photoelectric equipment can be shortened.
Single air tap drying mode: the air inlet and outlet connector is suitable for the photoelectric equipment with only one air inlet and outlet, the air inflation connector is connected with the air inlet and outlet of the photoelectric equipment, and the air exhaust connector is not connected. The PLC controls the inflation electromagnetic valve to be opened, the air exhaust electromagnetic valve, the bypass electromagnetic valve and the exhaust electromagnetic valve to be closed, and the photoelectric equipment is automatically inflated and dried according to the pressure; at the moment, the air-charging electromagnetic valve is in an air-charging state, then the air-charging electromagnetic valve is closed, the bypass electromagnetic valve is opened, the air-extracting pump works, the air-extracting state is in an air-extracting state, the single-nozzle air-charging, drying and nitrogen-charging functions are realized according to the air-inlet-air-outlet circulation, the bypass electromagnetic valve is closed after the dew point is reduced to a specified value, the air is charged to a set value according to the requirement, and then the air-charging electromagnetic valve is closed.
The utility model has the beneficial effects that: the utility model is suitable for the drying detection of the photoelectric equipment under the outdoor environmental condition, overcomes the defect that the humidity and the drying effect cannot be judged by the traditional method of charging nitrogen by manual operation and watching, and conveniently and quickly carries out automatic drying detection on the photoelectric equipment. The utility model realizes automation and shortens nitrogen charging time by controlling the gas charging, gas exhausting and humidity detection of the equipment through PLC programming.
Drawings
FIG. 1 is a schematic view of the gas circuit of the present invention;
FIG. 2 is a schematic view of a panel of the present invention;
number designation in the figures: 1-air inlet interface, 2-air inlet interface, 3-air exhaust interface, 4-box, 5-air inlet speed regulating valve, 6-air inlet pressure regulating valve, 7-power interface, 8-power switch, 9-PLC controller and display screen, 10-air inlet pressure sensor, 11-air inlet electromagnetic valve, 12-air inlet pressure sensor, 13-bypass electromagnetic valve, 14-air exhaust pump, 15-air exhaust electromagnetic valve, 16-humidity sensor and 17-air exhaust electromagnetic valve.
Detailed Description
The present invention will be further described in detail with reference to the following embodiments, as shown in fig. 1 and 2, a nitrogen-filled drying detection device suitable for an optoelectronic device, the device is integrally a box 4 with a panel, and the device comprises a nitrogen-filled loop and an air-pumping loop; the nitrogen charging loop starts from an air inlet interface 1 for connecting a nitrogen source and is sequentially connected with an air inlet pressure regulating valve 6, an air inlet pressure sensor 10, an air charging electromagnetic valve 11, an air charging speed regulating valve 5, an air charging pressure sensor 12 and an air charging interface 2; the air pumping loop starts from an air pumping pump 14 and is sequentially connected with an exhaust electromagnetic valve 15, a humidity sensor 16, an air pumping electromagnetic valve 17 and an air pumping interface 3; the nitrogen charging loop and the air pumping loop are connected through a bypass electromagnetic valve 13 by pipelines, and the connection points are respectively behind the air charging speed regulating valve 5 and in front of the air pumping electromagnetic valve 17; all the sensors are connected with a PLC controller, and the air suction pump 14 and all the electromagnetic valves are controlled by the PLC controller. The air pump 14 is a diaphragm vacuum pump, and the panel is provided with the PLC controller and an attached liquid crystal touch display screen 9, an air inlet interface 1, an air charging interface 2, an air exhaust interface 3, an air charging speed regulating valve 5, an air inlet pressure regulating valve 6, a power supply interface 7 and a power supply switch 8; the air inlet interface 1, the air inflation interface 2 and the air exhaust interface 3 are stainless steel C-shaped quick connectors; the box body 4 is a safety plastic protective box with the protection grade of IP 67.
This embodiment is aerifyd, is bled through PLC controller control, through being connected with the nitrogen gas source and realizing the quick drying detection work of filling nitrogen. This embodiment enables a compact design, portable outdoor field handling, an overall weight of about 5kg, and a size of 430 x 345 x 188 mm.
The above description is only for the purpose of illustrating the technical solutions of the present invention, and those skilled in the art can make simple modifications or equivalent substitutions on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a dry check out test set of nitrogenization suitable for optoelectronic device which characterized in that: the whole equipment is a box body with a panel, and the equipment comprises a nitrogen charging loop and an air pumping loop; the nitrogen charging loop starts from an air inlet interface for connecting a nitrogen source and is sequentially connected with an air inlet pressure regulating valve, an air inlet pressure sensor, an air charging electromagnetic valve, an air charging speed regulating valve, an air charging pressure sensor and an air charging interface; the air pumping loop starts from an air pumping pump and is sequentially connected with an exhaust electromagnetic valve, a humidity sensor, an air pumping electromagnetic valve and an air pumping interface; the nitrogen charging loop and the air pumping loop are connected through a bypass electromagnetic valve pipeline, and the connection points are respectively behind the air charging speed regulating valve and in front of the air pumping electromagnetic valve; all the sensors are connected with a PLC controller, and the air suction pump and all the electromagnetic valves are controlled by the PLC controller.
2. The nitrogen-filled drying detection device according to claim 1, characterized in that: the air pump is a diaphragm vacuum pump.
3. The nitrogen-filled drying detection device according to claim 1, characterized in that: the panel is provided with the PLC controller and an attached liquid crystal touch display screen, an air inlet interface, an air inflation interface, an air exhaust interface, an air inflation speed regulating valve, an air inlet pressure regulating valve, a power interface and a power switch.
4. The nitrogen-filled drying detection device according to claim 3, characterized in that: the air inlet connector, the air inflation connector and the air exhaust connector are stainless steel C-shaped quick connectors.
5. The nitrogen-filled drying detection device of claim 1, 2, 3 or 4, wherein: the box body is a safety plastic protection box with the protection grade of IP 67.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121853657.4U CN215768472U (en) | 2021-08-10 | 2021-08-10 | Nitrogen-filled drying detection equipment suitable for photoelectric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121853657.4U CN215768472U (en) | 2021-08-10 | 2021-08-10 | Nitrogen-filled drying detection equipment suitable for photoelectric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215768472U true CN215768472U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121853657.4U Active CN215768472U (en) | 2021-08-10 | 2021-08-10 | Nitrogen-filled drying detection equipment suitable for photoelectric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215768472U (en) |
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2021
- 2021-08-10 CN CN202121853657.4U patent/CN215768472U/en active Active
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