Inflation device with gas state monitoring function

Abstract

An inflation device with a gas state monitoring function comprises an inflation mechanism used for inflating GIS equipment and a monitoring mechanism connected with the inflation mechanism. The monitoring mechanism comprises a shell, an acquisition module connected in the shell, a power supply module used for providing power, a valve module connected with the inflation mechanism, a man-machine interaction unit used for operating and displaying data, and an alarm used for prompting workers. The acquisition module, the power supply module, the valve module, the alarm and the man-machine interaction unit are respectively and electrically connected with the processor, the inflation mechanism comprises a gas cylinder filled with SF6 gas and an inflation pipe I, one end of the inflation pipe I is connected with a gas outlet of the gas cylinder, and the other end of the inflation pipe I is connected with the valve module. The flow direction of gas can be monitored while inflation work is carried out, and the flow direction of the gas can be visually displayed, so that a worker can determine the flow direction of the gas, and the safety of the worker is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas flow direction monitoring, and particularly relates to an inflation device with a gas state monitoring function. Background Technique

[0002] GIS (GAS insulated SWITCHGEAR) is the English abbreviation of gas-insulated metal-enclosed switchgear. GIS consists of circuit breakers, disconnectors, earthing switches, instrument transformers, lightning arresters, busbars, connectors, and outgoing terminals. These devices or components are all enclosed in a metal-earthed enclosure, and a certain pressure of SF6 insulating gas is filled inside, so it is also called SF6 metal-enclosed switchgear.

[0003] With the increasing widespread application of GIS, and SF6 gas being its core insulating medium, it is necessary for staff to fill SF6 gas into GIS through gas cylinders filled with SF6 gas. The safety and accuracy of its inflation operation are particularly important. However, traditional SF6 inflation devices have the problem that the gas flow direction cannot be visually judged. In the prior art, the gas flow direction is often roughly judged based on the numerical changes of the pressure gauges on the gas cylinders and GIS equipment. However, this method is not intuitive and relies on the experience of the staff. Moreover, the following situations may occur: for example, during the inflation process, the pressure gauge is damaged and the numerical display is inaccurate. In this case, it is difficult for the staff to determine the gas flow direction. And due to the air pressure, when the air pressure in the GIS equipment is greater than that in the gas cylinder, the gas in the GIS equipment will flow out, which will reduce the SF6 gas pressure in the GIS equipment, thereby affecting its own insulation effect. And because the pressure gauge is damaged, the staff cannot determine the gas flow direction, so it is easy to endanger the safety of the staff responsible for inflation on site; or a malfunction occurs at the inflation port, resulting in gas accumulation in the inflation pipe, which is prone to explosion. Therefore, an inflation device capable of monitoring the gas flow direction is needed, and the utility model solves this technical problem. Content of the Utility Model

[0004] The utility model provides an inflation device with a gas state monitoring function, which can monitor the gas flow direction while performing the inflation work, and can visually display the gas flow direction, so that the staff can determine the gas flow direction and improve the safety of the staff.

[0005] An inflation device with a gas state monitoring function, comprising an inflation mechanism for inflating a GIS device and a monitoring mechanism connected to the inflation mechanism. The monitoring mechanism includes a housing, a collection module connected within the housing, a power supply module for providing power, a valve module connected to the inflation mechanism, a human-machine interaction unit for operating and displaying data, and an alarm for prompting staff. The collection module, the power supply module, the valve module, the alarm, and the human-machine interaction unit are respectively electrically connected to a processor.

[0006] Further, the inflation mechanism includes a gas cylinder filled with SF6 gas, and a first inflation pipe with one end connected to the gas outlet of the gas cylinder. The other end of the first inflation pipe is connected to the valve module, and the valve module is connected to the GIS device through a second inflation pipe.

[0007] Further, the valve module includes an internal pipeline disposed within the housing and connected to the first inflation pipe, an electromagnetic valve disposed on the internal pipeline, and a pressure reducing valve communicated with the internal pipeline. The internal pipeline is connected to the second inflation pipe, and the sampling module is connected to the internal pipeline.

[0008] Further, the sampling module includes a sensor assembly connected to the internal pipeline and a collection unit electrically connected to the sensor assembly. The collection unit is electrically connected to the processor, and the sensor assembly is used to collect information on the pressure, flow rate, and flow direction of the gas.

[0009] Further, the power supply module includes a charging interface connected to the housing, a lithium battery electrically connected to the charging interface, and a power management unit electrically connected to the lithium battery. The power management unit is electrically connected to the processor.

[0010] Further, the alarm includes a buzzer and a light-emitting diode connected to the housing. The buzzer and the light-emitting diode are respectively electrically connected to the processor.

[0011] The technical effects of the present utility model are as follows:

[0012] (1) In this solution, the GIS device is inflated through the inflation mechanism, and various data of the gas during the inflation process are monitored in real time through the monitoring mechanism. Staff can view the state data of the gas through the human-machine interaction unit, thereby understanding the flow direction of the gas. This can not only ensure the smooth progress of the inflation work but also prevent staff from being in danger;

[0013] (2) The acquisition module can collect the status data of the gas in real time. When abnormal data is detected, for example, when the detected air pressure exceeds the set value, the processor will alarm through the alarm to remind the staff to discover it in time, and can close the solenoid valve and open the pressure reducing valve to avoid the explosion of the second charging pipe, thereby improving the safety of the device and the staff.

[0014] (3) In this device, the gas data can be directly observed through the monitoring mechanism, without the need to judge based on the experience of the staff through the GIS device and the pressure gauge on the gas cylinder, which improves the accuracy of gas flow direction judgment and the work efficiency. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a connection block diagram of the monitoring mechanism in the present utility model.

[0017] Figure 3 It is a working flow chart of the present utility model.

[0018] Among them, the brief description of the drawings is as follows: 1. GIS device; 2. Second charging pipe; 3. Monitoring mechanism; 4. First charging pipe; 5. Gas cylinder; 6. Outer shell; 7. Human-computer interaction unit; 8. Charging interface; 9. Lithium battery; 10. Power management unit; 11. Processor; 12. Acquisition unit; 13. Pressure reducing valve; 14. Sensor assembly; 15. Solenoid valve; 16. Built-in pipeline; 17. Alarm. Specific Embodiments

[0019] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with specific embodiments and the accompanying drawings.

[0020] See Figures 1 - 3 , an inflation device with a gas status monitoring function, including an inflation mechanism for inflating the GIS device 1, and a monitoring mechanism 3 connected to the inflation mechanism. The monitoring mechanism 3 includes an outer shell 6, an acquisition module connected inside the outer shell 6, a power supply module for providing power, a valve module connected to the inflation mechanism, a human-computer interaction unit 6 for operating and displaying data, and an alarm 17 for prompting the staff. The acquisition module, the power supply module, the valve module, the alarm 17, and the human-computer interaction unit 6 are respectively electrically connected to the processor 11. The processor 11 in this embodiment is an MCU module.

[0021] Furthermore, the inflation mechanism includes a gas cylinder 5 filled with SF6 gas, and a first charging pipe 4 with one end connected to the air outlet of the gas cylinder 5. The other end of the first charging pipe 4 is connected to the valve module, and the valve module is connected to the GIS device 1 through a second charging pipe 2.

[0022] Further, the valve module includes a built-in pipeline 16 disposed in the housing 6 and connected to the first charging pipe 4, a solenoid valve 15 disposed on the built-in pipeline 16, and a pressure reducing valve 13 communicated with the built-in pipeline 16. The built-in pipeline 16 is connected to the second charging pipe 2, and the sampling module is connected to the built-in pipeline 16.

[0023] Further, the sampling module includes a sensor assembly 14 connected to the built-in pipeline 16 and an acquisition unit 12 electrically connected to the sensor assembly 14. The acquisition unit 12 is electrically connected to the processor 11. The sensor assembly 14 is used to collect information on the pressure, flow rate, and flow direction of the gas. The sensor assembly 14 in this embodiment may include a gas flow sensor, a gas pressure sensor, and the like.

[0024] Further, the power supply module includes a charging interface 8 connected to the housing 6, a lithium battery 9 electrically connected to the charging interface 8, and a power management unit 10 electrically connected to the lithium battery 9. The power management unit 10 is electrically connected to the processor 11.

[0025] Further, the alarm 17 includes a buzzer and a light emitting diode connected to the housing 6. The buzzer and the light emitting diode are respectively electrically connected to the processor 11.

[0026] The technical effects of the present utility model are as follows:

[0027] Connect the first charging pipe 4 and the second charging pipe 2 to the monitoring mechanism 3 respectively. The first charging pipe 4 is connected to the gas cylinder 5. Before connecting the second charging pipe 2 to the GIS device 1, it is necessary to first open the gas cylinder 5, release the SF6 gas therein, and discharge the air between the first charging pipe 4, the second charging pipe 2, and the built-in pipeline 16, and then connect the second charging pipe 2 to the GIS device 1;

[0028] After the device is connected, turn on the monitoring mechanism 3. The liquid crystal screen of the human-computer interaction interface will display the startup screen, and then work. The air in the gas cylinder 5 will pass through the built-in pipeline 16 of the monitoring mechanism 3. After the sensor assembly 14 collects the pressure, flow rate, and flow direction of the gas, it will send the data to the acquisition unit 12. After receiving the data, the acquisition unit 12 will send the data to the processor 11. The processor 11 will transmit the obtained data to the human-computer interaction unit 6, thereby displaying the data and enabling the staff to understand the gas state;

[0029] When the air inlet of the GIS device 1 is blocked or fails, and the gas is difficult to enter the GIS device 1, the gas will gather in the inflation pipe 1 4, the inflation pipe 2 2 and the built-in pipeline 16. When the air pressure exceeds the set maximum value and lasts for more than the set time, the processor 11 will control the solenoid valve 15 to close and open the pressure reducing valve 13 to deflate to prevent the device from bursting. At the same time, the controller will control the alarm 17 to sound and light alarm to remind the staff, so that the staff can find the situation in time and respond in time, and then record the time and cause of the abnormal event. When the staff opens the solenoid valve 15 through the human-computer interaction interface and releases the locking state, the monitoring mechanism 3 is restarted and inflated. When the staff does not restart and the air pressure returns to normal, the processor 11 automatically closes the pressure reducing valve 13 and opens the solenoid valve 15;

[0030] When the gas fills the GIS device 1 and the air pressure is balanced, the processor 11 controls the solenoid valve 15 to close, and the liquid crystal screen of the human-machine interface displays that the inflation is completed.

[0031] The above embodiments are only preferred embodiments of the present utility model. Those skilled in the art can obtain other embodiments from the above embodiments without creative work. Therefore, the present application protects not only the above embodiments, but also the scope consistent with the principles and features of the present application.

Claims

1. An inflator with a gas state monitoring function, characterized in that: The invention comprises an inflation mechanism for inflating a GIS device (1), and a monitoring mechanism (3) connected to the inflation mechanism. The monitoring mechanism (3) comprises a housing (6), a collection module connected to the housing (6), a power module for providing power, a valve module connected to the inflation mechanism, a human-machine interaction unit (7) for operating and displaying data, and an alarm (17) for prompting staff. The collection module, the power module, the valve module, the alarm (17), and the human-machine interaction unit (7) are respectively electrically connected to a processor (11).

2. The inflator with gas state monitoring function according to claim 1, characterized in that: The inflation mechanism comprises a gas cylinder (5) containing SF6 gas, an inflation pipe (4) having one end connected to a gas outlet of the gas cylinder (5), the other end of the inflation pipe (4) being connected to the valve module, and the valve module being connected to the GIS device (1) via an inflation pipe (2).

3. The inflator with gas state monitoring function according to claim 2, characterized in that: The valve module comprises a built-in pipeline (16) arranged in the housing (6) and connected to the first inflation tube (4), a solenoid valve (15) arranged on the built-in pipeline (16), and a pressure reducing valve (13) in communication with the built-in pipeline (16); the built-in pipeline (16) is connected to the second inflation tube (2); and the collection module is connected to the built-in pipeline (16).

4. The inflator with gas state monitoring function according to claim 3, characterized in that: The acquisition module comprises a sensor component (14) connected to the built-in pipeline (16), and a acquisition unit (12) electrically connected to the sensor component (14), wherein the acquisition unit (12) is electrically connected to the processor (11), and the sensor component (14) is used to acquire pressure, flow rate and flow direction information of the gas.

5. The inflator with gas state monitoring function according to claim 1, characterized in that: The power module comprises a charging interface (8) connected to the housing (6), a lithium battery (9) electrically connected to the charging interface (8), and a power management unit (10) electrically connected to the lithium battery (9); the power management unit (10) is electrically connected to the processor (11).

6. The inflator with gas state monitoring function according to claim 1, characterized in that: The alarm (17) comprises a buzzer and a light emitting diode connected to the housing (6), and the buzzer and the light emitting diode are electrically connected to the processor (11) respectively.

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