Natural gas metering device with warning mechanism

Abstract

The utility model discloses a natural gas metering device with a warning mechanism, and particularly relates to the technical field of natural gas metering devices, the natural gas metering device comprises a metering pipeline, a mounting table and a gas meter, the top end of the metering pipeline is fixedly provided with the mounting table, the top end of the mounting table is provided with the gas meter, the bottom end of the gas meter extends into the metering pipeline, and the bottom end of the gas meter extends into the metering pipeline. A natural gas monitoring assembly is arranged at the bottom end of the metering pipeline and comprises a control box, an audible and visual alarm and a gas sensor. According to the utility model, the control box and the detection box are arranged, and the control box is located at the bottom of the metering pipeline, so that when the device is used, the fans in the peripheral bellows operate to assist in conveying surrounding air into the detection box, and if natural gas leaks, the natural gas enters the detection box, and a gas sensor in the detection box detects the natural gas, the audible and visual alarm can be started to give an alarm. Therefore, the detection and warning performance of the natural gas metering device in use is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas metering devices, in particular to a natural gas metering device with a warning mechanism. Background Art

[0002] Natural gas refers to a type of flammable gas that exists in nature. It is a fossil fuel. The unit of measurement for natural gas used by residents is standard cubic meter. Standard cubic meter is the measurement unit of gas flow meter. It has nothing to do with the pressure and temperature of the place of use. Therefore, it is generally used in the chemical industry to calculate the molar amount or mass of gas involved in chemical reactions. This device is a natural gas metering device.

[0003] Natural gas is relatively dangerous. If there is a natural gas leak at the connection end of the natural gas metering device, the natural gas leak will cause human poisoning. Secondly, there is also the risk of explosion from natural gas leaks. If it is not discovered in time, it is very likely to cause danger.

[0004] Therefore, a natural gas metering device with a warning mechanism is needed to solve the above-mentioned dangers. Utility Model Content

[0005] The purpose of the utility model is to provide a natural gas metering device with a warning mechanism to solve the problem in the above-mentioned background technology that the natural gas metering device is not convenient for natural gas leakage detection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas metering device with a warning mechanism, comprising a metering pipeline, a mounting platform and a gas meter, a mounting platform is fixed to the top of the metering pipeline, a gas meter is installed on the top of the mounting platform, the bottom end of the gas meter extends to the inside of the metering pipeline, a natural gas monitoring component is arranged at the bottom end of the metering pipeline, the monitoring component comprises a control box, an audible and visual alarm and a gas sensor, a control box is installed at the bottom end of the metering pipeline, an audible and visual alarm is installed on one side inside the control box, the bottom end of the audible and visual alarm extends to the outside of the control box, a main board is installed inside the control box, a gas sensor is installed at the bottom end of the main board, a detection box is installed at the bottom end of the control box, an air outlet slot is arranged at the bottom end of the detection box, the bottom end of the gas sensor extends to the inside of the detection box, a bellows is installed on the outer wall of the control box, an air inlet slot is arranged on one side of the bellows, a fan is installed inside the bellows, and an air supply pipe is installed at the bottom end of the bellows.

[0007] Furthermore, an air intake pipe is fixed to one side of the metering pipe, and a first flange is fixed to one side of the air intake pipe.

[0008] Preferably, a positioning ring is fixed inside the air intake duct, and a filter is installed on one side of the positioning ring.

[0009] Furthermore, a gas pipeline is installed on the other side of the metering pipeline, an extension pipeline is arranged inside the gas pipeline, and a second flange is installed on one side of the extension pipeline.

[0010] Preferably, a fixing platform is fixed to one side of the bottom end of the gas pipeline, a fixing bolt is arranged inside the fixing platform, and a top end of the fixing bolt extends to the inside of the gas pipeline.

[0011] Preferably, a sealing ring is fixed on one side of the gas pipeline, an air bag is arranged inside the sealing ring, a gas filling pipe is installed at the top end of the air bag, and the top end of the gas filling pipe extends to the outside of the sealing ring.

[0012] Preferably, a fixing ring is fixed inside the gas filling pipe, and a one-way diaphragm is installed at the bottom end of the fixing ring.

[0013] Preferably, a gas filling port is fixed at the top end of the gas filling pipe, and a sealing cap is arranged on the outer side of the gas filling port.

[0014] Compared with the prior art, the utility model has the following beneficial effects: by providing a control box and a detection box, the control box is located at the bottom of the metering pipeline. When in use, the fans inside the surrounding bellows are running to assist in conveying the surrounding air into the detection box. If there is a natural gas leak, the natural gas enters the detection box, and after being detected by the gas sensor in the detection box, the sound and light alarm can be activated to perform a sound alarm operation, thereby realizing the detection and warning function of the natural gas metering device when in use;

[0015] By providing a filter screen, the filter screen is installed on the positioning ring inside the air intake pipe for use, which can assist in filtering out the debris that may exist inside the pipe, such as debris generated by pipe aging, etc., thereby achieving the filtering performance of the natural gas metering device when in use;

[0016] By providing an extension pipeline, the fixing bolts on the bottom side of the gas pipeline are loosened, and after the fixation of the extension pipeline is loosened, the extension pipeline can slide along the gas pipeline. With the help of the exposed extension pipeline, the gas pipeline can be assisted in extension and expansion, thereby assisting the device in docking and installation operations with other pipelines, thereby realizing the auxiliary extension of the natural gas metering device when docking with the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 This is a front view structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 1A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 It is a schematic diagram of the front cross-sectional structure of the control box of the utility model.

[0021] In the figure: 1. metering pipeline; 2. air intake pipeline; 3. first flange; 4. positioning ring; 5. filter; 6. mounting platform; 7. gas meter; 8. gas pipeline; 9. extension pipeline; 10. second flange; 11. fixing platform; 12. fixing bolt; 13. sealing ring; 14. air bag; 15. gas filling pipe; 16. fixing ring; 17. one-way diaphragm; 18. gas filling port; 19. sealing cap; 20. control box; 21. sound and light alarm; 22. main board; 23. gas sensor; 24. detection box; 25. air outlet slot; 26. bellows; 27. air inlet slot; 28. fan; 29. ​​air supply pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a natural gas metering device with a warning mechanism, comprising a metering pipeline 1, a mounting platform 6 and a gas meter 7, an air intake pipeline 2 is fixed to one side of the metering pipeline 1, a first flange 3 is fixed to one side of the air intake pipeline 2, a positioning ring 4 is fixed inside the air intake pipeline 2, and a filter screen 5 is installed on one side of the positioning ring 4;

[0024] Specifically, Figure 1 As shown, when in use, the positioning ring 4 is located inside the air inlet pipe 2, and the filter 5 is installed at the side end of the positioning ring 4 for use. The filter 5 can perform auxiliary filtering during natural gas transportation, such as debris that may exist in the pipeline, to prevent the debris from affecting the subsequent use of the gas meter 7;

[0025] A mounting platform 6 is fixed to the top of the metering pipeline 1, a gas meter 7 is installed on the top of the mounting platform 6, the bottom of the gas meter 7 extends to the inside of the metering pipeline 1, a gas pipeline 8 is installed on the other side of the metering pipeline 1, an extension pipeline 9 is arranged inside the gas pipeline 8, a second flange 10 is installed on one side of the extension pipeline 9, a fixing platform 11 is fixed to one side of the bottom of the gas pipeline 8, a fixing bolt 12 is arranged inside the fixing platform 11, the top of the fixing bolt 12 extends to the inside of the gas pipeline 8, a sealing ring 13 is fixed to one side of the gas pipeline 8, an air bag 14 is arranged inside the sealing ring 13, a gas filling pipe 15 is installed on the top of the air bag 14, the top of the gas filling pipe 15 extends to the outside of the sealing ring 13, a fixing ring 16 is fixed inside the gas filling pipe 15, a one-way diaphragm 17 is installed at the bottom of the fixing ring 16, a gas filling port 18 is fixed to the top of the gas filling pipe 15, and a sealing cap 19 is arranged outside the gas filling port 18;

[0026] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when in use, after the fixing bolt 12 on the bottom side of the gas pipeline 8 is loosened, the extension pipeline 9 can be slid outward along the gas pipeline 8, and the gas pipeline 8 can be extended and extended with the help of the extension pipeline 9. After the adjustment is completed, the fixing bolt 12 can be tightened to fix it. After that, the inside of the airbag 14 can be inflated with the help of the air filling port 18. The inflation of the airbag 14 can assist in sealing the gap between the sealing ring 13 and the extension pipeline 9;

[0027] A natural gas monitoring component is provided at the bottom end of the metering pipeline 1, and the monitoring component includes a control box 20, an audible and visual alarm 21 and a gas sensor 23. The control box 20 is installed at the bottom end of the metering pipeline 1, and the audible and visual alarm 21 is installed on one side of the control box 20. The bottom end of the audible and visual alarm 21 extends to the outside of the control box 20. A main board 22 is installed inside the control box 20, and a gas sensor 23 is installed at the bottom end of the main board 22. A detection box 24 is installed at the bottom end of the control box 20, and an air outlet slot 25 is provided at the bottom end of the detection box 24. The bottom end of the gas sensor 23 extends to the inside of the detection box 24. A bellows 26 is installed on the outer wall of the control box 20, and an air inlet slot 27 is provided on one side of the bellows 26. A fan 28 is installed inside the bellows 26, and an air delivery pipe 29 is installed at the bottom end of the bellows 26.

[0028] Specifically, Figure 1 , Figure 2 and Figure 4As shown, when in use, four groups of bellows 26 are distributed around the control box 20. As the fan 28 inside the bellows 26 is started, the surrounding air can be driven to enter the detection box 24 through the bellows 26 and the air pipe 29. If there is a natural gas leak and it enters the detection box 24, the gas sensor 23 in the detection box 24 detects it, and the sound and light alarm 21 is started, which can prompt the occurrence of natural gas leakage through sound.

[0029] Working principle: When in use, the first flange 3 is connected to the natural gas transmission pipeline, and the second flange 10 is connected to the gas transmission pipeline. If the fixing bolt 12 on the bottom side of the gas transmission pipeline 8 is loosened, the extension pipeline 9 can slide outward along the gas transmission pipeline 8 to extend the position of the second flange 10, so as to assist in the connection and installation operation with the transmission pipeline. After the second flange 10 is docked and installed, the fixing bolt 12 can be tightened to fix it. After that, the airbag 14 inside the sealing ring 13 can be inflated with the help of the air filling port 18. The airbag 14 expands and can block the sealing ring. The connection between 13 and the extension pipe 9 is sealed to avoid natural gas leakage. When natural gas is transported, the filter 5 located inside the air inlet pipe 2 can assist in filtering the natural gas. If natural gas leaks through the connection, as the fan 28 inside the bellows 26 runs, the natural gas and the flowing air enter the bellows 26 and can be transported to the detection box 24 through the air supply pipe 29. When the gas sensor 23 located in the detection box 24 detects the natural gas, the main board 22 starts the sound and light alarm 21, and the sound and light alarm 21 can be used to warn the operation through sound.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A natural gas metering device with a warning mechanism, comprising a metering pipeline (1), a mounting platform (6) and a gas meter (7), characterized in that: A mounting platform (6) is fixed to the top of the metering pipeline (1), a gas meter (7) is mounted on the top of the mounting platform (6), and the bottom of the gas meter (7) extends into the interior of the metering pipeline (1); A natural gas monitoring component is arranged at the bottom end of the metering pipeline (1), and the monitoring component comprises a control box (20), an audible and visual alarm (21), and a gas sensor (23). The control box (20) is installed at the bottom end of the metering pipeline (1), and the audible and visual alarm (21) is installed on one side inside the control box (20), and the bottom end of the audible and visual alarm (21) extends to the outside of the control box (20). A main board (22) is installed inside the control box (20), and the bottom end of the main board (22) is installed. A gas sensor (23) is provided, a detection box (24) is installed at the bottom end of the control box (20), an air outlet slot (25) is provided at the bottom end of the detection box (24), the bottom end of the gas sensor (23) extends to the inside of the detection box (24), a bellows (26) is installed on the outer side wall of the control box (20), an air inlet slot (27) is provided on one side of the bellows (26), a fan (28) is installed inside the bellows (26), and an air supply pipe (29) is installed at the bottom end of the bellows (26).

2. A natural gas metering device with a warning mechanism according to claim 1, characterized in that: An air intake pipe (2) is fixed to one side of the metering pipe (1), and a first flange (3) is fixed to one side of the air intake pipe (2).

3. A natural gas metering device with a warning mechanism according to claim 2, characterized in that: A positioning ring (4) is fixed inside the air intake pipe (2), and a filter screen (5) is installed on one side of the positioning ring (4).

4. A natural gas metering device with a warning mechanism according to claim 1, characterized in that: A gas delivery pipeline (8) is installed on the other side of the metering pipeline (1), an extension pipeline (9) is arranged inside the gas delivery pipeline (8), and a second flange (10) is installed on one side of the extension pipeline (9).

5. A natural gas metering device with a warning mechanism according to claim 4, characterized in that: A fixing platform (11) is fixed to one side of the bottom end of the gas pipeline (8), a fixing bolt (12) is arranged inside the fixing platform (11), and the top end of the fixing bolt (12) extends into the interior of the gas pipeline (8).

6. A natural gas metering device with a warning mechanism according to claim 4, characterized in that: A sealing ring (13) is fixed on one side of the gas delivery pipeline (8), an air bag (14) is arranged inside the sealing ring (13), a gas filling pipe (15) is installed at the top end of the air bag (14), and the top end of the gas filling pipe (15) extends to the outside of the sealing ring (13).

7. A natural gas metering device with a warning mechanism according to claim 6, characterized in that: A fixing ring (16) is fixed inside the gas filling pipe (15), and a one-way diaphragm (17) is installed at the bottom end of the fixing ring (16).

8. A natural gas metering device with a warning mechanism according to claim 6, characterized in that: A gas filling port (18) is fixed at the top end of the gas filling pipe (15), and a sealing cap (19) is arranged on the outer side of the gas filling port (18).

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