SF6 gas portable automatic inflator

Abstract

The utility model discloses SF6 gas portable automatic inflation device belongs to the technical field of air pump. SF6 gas portable automatic inflation device, including portable pump box, the bottom of portable pump box is installed with universal wheel, and the other side of portable pump box is installed with telescopic pull rod, the portable pump box includes the box cover, and the box cover is connected with portable pump box through the hinge rotation, the inside installation of portable pump box has air pump subassembly, solenoid valve subassembly and gas sensor subassembly. In order to solve the problem that the air pump system device of the SF6 gas used is more, the structure is too miscellaneous, and it is not easy to carry along with using, air pump subassembly, solenoid valve subassembly, gas sensor subassembly and control display unit are integrated in portable pump box, and the structure is compact, and cooperate with universal wheel and telescopic pull rod, and it is convenient to transport flexibly among different transformer substation, equipment, especially suitable for field operation.

Description

Technical Field

[0001] This utility model relates to the field of air pump technology, specifically to a portable automatic SF6 gas filling device. Background Technology

[0002] The existing SF6 gas pump systems are numerous and overly complex, and are not suitable for personal use. Utility Model Content

[0003] The purpose of this invention is to provide a portable automatic SF6 gas filling device that integrates a gas pump assembly, a solenoid valve assembly, a gas sensor assembly, and a control and display unit into a portable pump box. The device has a compact structure and is equipped with casters and a telescopic rod, making it easy to move flexibly between different substations and equipment. It is especially suitable for on-site operations and can solve the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable automatic SF gas filling device, including a portable pump box, a universal wheel installed at the bottom of the portable pump box, a retractable pull rod installed on the other side of the portable pump box, the portable pump box including a lid, and the lid being rotatably connected to the portable pump box via a hinge, and an air pump assembly, a solenoid valve assembly and a gas sensor assembly installed inside the portable pump box.

[0005] Preferably, cooling fans for heat dissipation during pump operation are installed on the left and right sides of the top of the portable pump box, and a display screen assembly is installed inside the box cover.

[0006] Preferably, a power supply cable is installed on one side of the air pump assembly, and a power interface is provided on one side of one of the cooling fans, and the power interface is electrically connected to the air pump assembly, the solenoid valve assembly and the gas sensor assembly.

[0007] Preferably, an inflation port is installed on one side of the power supply wiring, and the inflation port is connected to the air pump assembly.

[0008] Preferably, an air inlet window is installed on the other side of the air pump assembly, and the air inlet window is connected to the air pump assembly through a pipe.

[0009] Preferably, an air storage chamber is installed on one side of the bottom of the air intake window, and the air storage chamber is connected to the air pump assembly through a pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model integrates an air pump assembly, a solenoid valve assembly, a gas sensor assembly, and a control display unit into a portable pump box. The structure is compact, and with universal wheels and a telescopic rod, it is easy to move flexibly between different substations and equipment, and is especially suitable for on-site operations.

[0012] 2. In this utility model, pressure sensors are installed in both the gas storage chamber outlet and the gas cylinder outlet, and are connected to normally closed solenoid valves. When the pressure on the gas chamber side is lower than the set value and the pressure on the gas cylinder outlet side is higher than the pressure on the gas chamber outlet side, the normally closed solenoid valve is opened to start replenishing the gas chamber. When the pressure on the gas chamber side reaches the set value, the normally closed solenoid valve is immediately closed to end the filling process. Attached Figure Description

[0013] Figure 1 This is the overall front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the overall unfolded structure of this utility model.

[0015] In the diagram: 1. Portable pump box; 2. Power interface; 3. Air storage chamber; 101. Box cover; 102. Pull rod; 103. Cooling fan; 104. Casters; 1011. Display screen assembly; 201. Power wiring; 202. Air pump assembly; 203. Inflation interface; 204. Solenoid valve assembly; 205. Gas sensor assembly; 206. Air inlet window. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To address the issues of existing SF6 gas pump systems being numerous, overly complex, and difficult to carry, please refer to... Figure 1-2 The present invention provides the following solution:

[0018] A portable automatic SF6 gas filling device includes a portable pump box 1. The bottom of the portable pump box 1 is equipped with casters 104, and the other side of the portable pump box 1 is equipped with a retractable pull rod 102. The portable pump box 1 includes a box cover 101, and the box cover 101 is rotatably connected to the portable pump box 1 via a hinge. The portable pump box 1 is equipped with a gas pump assembly 202, a solenoid valve assembly 204, and a gas sensor assembly 205. The top left and right sides of the portable pump box 1 are equipped with cooling fans 103 for heat dissipation when the pump is working. The box cover 101 is equipped with a display screen assembly 1011, which can display the pressure readings on the gas cylinder side and the gas chamber side in real time. An emergency stop button or mechanical valve is set in the middle of the filling pipeline, which can manually stop the filling process at any time.

[0019] In this embodiment, the air pump assembly 202 draws SF6 gas from the gas storage chamber 3 through the air inlet window 206. After the gas is pressurized by the pump body, it is delivered to the inflation port 203. During the process, the solenoid valve assembly 204 automatically adjusts the air flow interruption and flow rate according to the command to achieve precise control of the inflation process.

[0020] A power supply cable 201 is installed on one side of the air pump assembly 202. A power interface 2 is provided on one side of a cooling fan 103, and the power interface 2 is electrically connected to the air pump assembly 202, the solenoid valve assembly 204 and the gas sensor assembly 205. An inflation interface 203 is installed on one side of the power supply cable 201, and the inflation interface 203 is connected to the air pump assembly 202. An air inlet 206 is installed on the other side of the air pump assembly 202, and the air inlet 206 is connected to the air pump assembly 202 through a pipe. An air storage chamber 3 is installed on one side of the bottom of the air inlet 206, and the air storage chamber 3 is connected to the air pump assembly 202 through a pipe.

[0021] In this embodiment, the gas sensor assembly 205 continuously monitors parameters such as the pressure and purity of SF6 gas in the pipeline and feeds them back to the control system. The data is displayed in real time on the display screen assembly 1011. The system can automatically adjust the working status of the gas pump assembly 202 and the solenoid valve assembly 204 according to the set value to ensure that the gas filling process is stable within the set range. When the outlet pressure on the gas cylinder side is lower than the outlet pressure on the gas chamber side, the solenoid valve is locked and an alarm is triggered.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable automatic SF6 gas filling device, characterized in that, The portable pump box (1) is equipped with casters (104) at the bottom and a retractable rod (102) on the other side. The portable pump box (1) includes a lid (101) and the lid (101) is rotatably connected to the portable pump box (1) by a hinge. The portable pump box (1) contains an air pump assembly (202), a solenoid valve assembly (204) and a gas sensor assembly (205).

2. The portable automatic SF6 gas filling device according to claim 1, characterized in that: The portable pump box (1) is equipped with cooling fans (103) on the left and right sides of the top for heat dissipation when the pump is working, and the display screen assembly (1011) is installed inside the box cover (101).

3. The portable automatic SF6 gas filling device according to claim 2, characterized in that: A power supply cable (201) is installed on one side of the air pump assembly (202), and a power interface (2) is provided on one side of one of the cooling fans (103), and the power interface (2) is electrically connected to the air pump assembly (202), the solenoid valve assembly (204) and the gas sensor assembly (205).

4. The portable automatic SF6 gas filling device according to claim 3, characterized in that: An inflation port (203) is installed on one side of the power supply wiring (201), and the inflation port (203) is connected to the air pump assembly (202).

5. The portable automatic SF6 gas filling device according to claim 4, characterized in that: An air inlet window (206) is installed on the other side of the air pump assembly (202), and the air inlet window (206) is connected to the air pump assembly (202) through a pipe.

6. The portable automatic SF6 gas filling device according to claim 5, characterized in that: An air storage chamber (3) is installed on one side of the bottom of the air inlet window (206), and the air storage chamber (3) is connected to the air pump assembly (202) through a pipe.

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