Safety structure for preventing excessive gas filling

Abstract

The utility model discloses a safety structure for preventing excessive gas filling, which particularly relates to the technical field of filling and comprises a gas filling pipe, a mounting cover is fixedly sleeved on the gas filling pipe, an excessive gas preventing component is fixedly mounted at the upper end of the mounting cover, and the excessive gas preventing component is sleeved on the gas filling pipe. A switching valve is fixedly mounted on the inflating pipe and located above the excess preventing assembly, and an air pump is fixedly mounted on the inflating pipe and located above the switching valve in a sleeving manner; wherein the excess prevention assembly comprises a detection box, the upper end of the detection box is open, the detection box is fixedly arranged on an inflation tube in a sleeving mode, the inflation tube penetrates through the opening in the upper end of the detection box, and a gas flow sensor, a controller and an alarm are fixedly installed at the bottom end of the interior of the detection box and located on the outer side of the inflation tube. According to the utility model, automatic filling can be realized, and the explosion risk of the equipment to be filled with the gas is increased because the internal pressure of the equipment to be filled with the gas exceeds the designed pressure due to excessive filling of the gas.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to an anti-overfilling safety structure for gas filling. Background Technique

[0002] During the filling process of the existing gas equipment to be filled, it is easy to overfill the gas equipment to be filled, resulting in the internal pressure of the gas equipment to be filled exceeding the design pressure, increasing the explosion risk of the gas equipment to be filled. At the same time, overfilling the gas equipment to be filled will cause the gas equipment to be filled to bear excessive pressure, resulting in material fatigue, deformation or damage of the gas equipment to be filled, shortening the service life of the gas equipment to be filled, and increasing the replacement cost of the gas equipment to be filled.

[0003] Therefore, we make improvements and propose an anti-overfilling safety structure for gas filling. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] An anti-overfilling safety structure for gas filling of the utility model includes a filling pipe, an installation cover is fixedly sleeved on the filling pipe, an anti-overfilling component is fixedly installed at the upper end of the installation cover, and the anti-overfilling component is sleeved on the filling pipe. A switch valve is fixedly installed on the filling pipe at a position above the anti-overfilling component, and an air pump is fixedly sleeved on the filling pipe at a position above the switch valve.

[0006] Among them, the anti-overfilling component includes a detection box, the upper end of the detection box is open, and the detection box is fixedly sleeved on the filling pipe. The filling pipe penetrates through the upper open end of the detection box. At the bottom end inside the detection box and at a position outside the filling pipe, a gas flow sensor, a controller and an alarm are fixedly installed.

[0007] As a preferred technical solution of the utility model, a plurality of first positioning screws are fixedly installed on the installation cover in an annular array.

[0008] As a preferred technical solution of the utility model, the sensing end of the gas flow sensor penetrates through the side end of the filling pipe and extends into the filling pipe.

[0009] As a preferred technical solution of the utility model, the gas flow sensor is electrically connected to the controller, and the controller is electrically connected to the alarm, the air pump and the switch valve.

[0010] As a preferred technical solution of the utility model, an upper mounting plate is installed at the upper end of the detection box, and the upper mounting plate is located outside the filling pipe;

[0011] The upper end of the detection box is provided with a plurality of positioning screw holes in an annular array, and a second positioning screw is installed in the positioning screw hole by internal thread, and the upper end of the second positioning screw penetrates through the upper mounting plate by thread.

[0012] As a preferred technical solution of the present utility model, a display screen is fixedly installed at the front end of the detection box through a plurality of fixed connecting rods.

[0013] As a preferred technical solution of the present utility model, the controller is electrically connected to the display screen.

[0014] The beneficial effects of the present utility model are:

[0015] 1. For this gas filling anti-overfilling safety structure, start the cylinder and open the switch valve. The gas can enter the intake end of the equipment to be filled with gas through the filling pipe and finally be filled into the equipment to be filled with gas, realizing automatic filling. The gas flow sensor can collect the gas flow information flowing through the filling pipe.

[0016] 2. For this gas filling anti-overfilling safety structure, before filling, set a maximum value for the controller according to the maximum amount of gas to be filled. The gas flow sensor can transmit the collected gas flow information to the controller. The controller converts the flow information into data and compares it with the maximum value. When it is equal to the maximum value, the controller can send instructions to the alarm, air pump and switch valve. The alarm can give an alarm to remind the staff that the equipment to be filled with gas is full at this time. At this time, the air pump stops working and the switch valve closes. Through the above design, it is possible to prevent excessive gas filling, resulting in the internal pressure of the equipment to be filled with gas exceeding the design pressure and increasing the explosion risk of the equipment to be filled with gas.

[0017] 3. For this gas filling anti-overfilling safety structure, the controller can send the converted data to the display screen, and the display screen can display the gas flow information, which is convenient for the staff to quickly view.

[0018] The present utility model can realize automatic filling and can prevent excessive gas filling, resulting in the internal pressure of the equipment to be filled with gas exceeding the design pressure and increasing the explosion risk of the equipment to be filled with gas. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic structural diagram of a gas filling anti-overfilling safety structure of the present utility model;

[0021] Figure 2It is an exploded view of a partial structure of an overfill prevention component in an overfill prevention safety structure of the present utility model;

[0022] Figure 3 It is a schematic diagram of a partial structure of an overfill prevention component in an overfill prevention safety structure of the present utility model;

[0023] Figure 4 It is a top view of a partial structure of an overfill prevention component in an overfill prevention safety structure of the present utility model.

[0024] In the figure: 1, filling pipe; 2, overfill prevention component; 3, mounting cover; 4, first positioning screw; 5, switch valve; 6, air pump;

[0025] 201, detection box; 202, controller; 203, second positioning screw; 204, upper mounting plate; 205, positioning screw hole; 206, gas flow sensor; 207, alarm; 208, fixed connecting rod; 209, display screen. Specific embodiments

[0026] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model and are not intended to limit the present utility model.

[0027] Embodiment: As Figure 1-2 shown, an overfill prevention safety structure of the present utility model includes a filling pipe 1. An installation cover 3 is fixedly sleeved on the filling pipe 1. An overfill prevention component 2 is fixedly installed at the upper end of the installation cover 3, and the overfill prevention component 2 is sleeved on the filling pipe 1. A switch valve 5 is fixedly installed on the filling pipe 1 at a position above the overfill prevention component 2, and an air pump 6 is fixedly sleeved on the filling pipe 1 at a position above the switch valve 5;

[0028] Among them, the overfill prevention component 2 includes a detection box 201. The upper end of the detection box 201 is open, and the detection box 201 is fixedly sleeved on the filling pipe 1. The filling pipe 1 passes through the upper open end of the detection box 201. A gas flow sensor 206, a controller 202, and an alarm 207 are fixedly installed at the bottom end inside the detection box 201 and on the outer side of the filling pipe 1.

[0029] In this embodiment, as Figure 2-4 shown, a plurality of first positioning screws 4 are fixedly installed on the installation cover 3 in a circumferential array.

[0030] During use, the lower end of the filling pipe 1 can be inserted into the gas inlet end of the equipment to be filled with gas, and the installation cover 3 can be fixed to the equipment to be filled with gas through the plurality of first positioning screws 4.

[0031] The sensing end of the gas flow sensor 206 penetrates through the side end of the gas filling pipe 1 and extends into the interior of the gas filling pipe 1.

[0032] The controller 202 is a SC200 general-purpose controller 202. Set a maximum value for the controller 202 according to the maximum amount of gas to be filled. Start the cylinder and open the switch valve 5. The gas can enter the intake end of the equipment to be filled with gas through the gas filling pipe 1 and finally be filled into the equipment to be filled with gas, realizing automatic inflation. The gas flow sensor 206 can collect the gas flow information flowing through the gas filling pipe 1.

[0033] The gas flow sensor 206 is electrically connected to the controller 202, and the controller 202 is electrically connected to the alarm 207, the air pump 6, and the switch valve 5.

[0034] The gas flow sensor 206 can transmit the collected gas flow information to the controller 202. The controller 202 converts the flow information into data and compares it with the maximum value. When it is equal to the maximum value, the controller 202 can send instructions to the alarm 207, the air pump 6, and the switch valve 5. The alarm 207 can give an alarm to remind the staff that the equipment to be filled with gas is full at this time. At this time, the air pump 6 stops working, stops transporting the gas, the switch valve 5 closes, and at this time, the gas filling pipe 1 is no longer ventilated.

[0035] As Figure 1-2 shown, an upper mounting plate 204 is installed on the upper end of the detection box 201, and the upper mounting plate 204 is located outside the gas filling pipe 1;

[0036] A plurality of positioning screw holes 205 are formed in an annular array at the upper end of the detection box 201, and a second positioning screw 203 is installed with internal threads in the positioning screw holes 205. The upper end of the second positioning screw 203 threadedly penetrates through the upper mounting plate 204.

[0037] Through the positioning screw holes 205 and the second positioning screws 203, the upper end of the detection box 201 can be sealed through the upper mounting plate 204. After removing the second positioning screws 203, the upper mounting plate 204 can be removed, and thus it is convenient to maintain the interior of the detection box 201.

[0038] A display screen 209 is fixedly installed at the front end of the detection box 201 through a plurality of fixed connecting rods 208. The controller 202 is electrically connected to the display screen 209.

[0039] The controller 202 can send the converted data to the display screen 209, and the display screen 209 can display the gas flow information, thus facilitating the staff to quickly view it.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gas filling anti-overdose safety structure, characterized in that, It includes an inflation tube (1), on which an installation cover (3) is fixedly sleeved. At the upper end of the installation cover (3), an anti-overdose component (2) is fixedly installed, and the anti-overdose component (2) is sleeved on the inflation tube (1). A switch valve (5) is fixedly installed on the inflation tube (1) above the anti-overdose component (2), and an air pump (6) is fixedly sleeved on the inflation tube (1) above the switch valve (5). Among them, the anti-overdose component (2) includes a detection box (201). The upper end of the detection box (201) is open, and the detection box (201) is fixedly sleeved on the inflation tube (1). The inflation tube (1) passes through the upper open end of the detection box (201). At the inner bottom end of the detection box (201), and on the outer side of the inflation tube (1), a gas flow sensor (206), a controller (202), and an alarm (207) are fixedly installed.

2. The safety structure for preventing overfilling in gas filling according to claim 1, characterized in that, A plurality of first positioning screws (4) are fixedly installed on the installation cover (3) in a circular array.

3. The gas filling anti-overfilling safety structure according to claim 2, characterized in that, The sensing end of the gas flow sensor (206) penetrates through the side end of the inflation tube (1) and extends into the inflation tube (1).

4. A gas filling anti-overfilling safety structure according to claim 3, characterized in that, The gas flow sensor (206) is electrically connected to the controller (202), and the controller (202) is electrically connected to the alarm (207), the air pump (6), and the switch valve (5).

5. The safety structure for preventing overfilling during gas filling according to claim 4, characterized in that, An upper mounting plate (204) is installed at the upper end of the detection box (201), and the upper mounting plate (204) is located outside the inflation tube (1). A plurality of positioning screw holes (205) are formed in a circular array at the upper end of the detection box (201), and a second positioning screw (203) is threadedly installed in the positioning screw hole (205). The upper end of the second positioning screw (203) threadedly penetrates through the upper mounting plate (204).

6. The safety structure for preventing overfilling during gas filling according to claim 5, characterized in that, A display screen (209) is fixedly installed at the front end of the detection box (201) through a plurality of fixed connecting rods (208).

7. The safety structure for preventing overfilling during gas filling according to claim 6, characterized in that, The controller (202) is electrically connected to the display screen (209).

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