Indoor fuel gas detection device

Abstract

The utility model relates to an indoor fuel gas detection device, including four-way joint, barometer, exhaust pipe and manual blast pump, four-way joint includes first joint, second joint, third joint and fourth joint, first joint is connected with barometer, second joint is connected with exhaust pipe or manual blast pump, third joint is used for connecting with fuel gas equipment, and fourth joint is used for connecting with fuel gas equipment. The fourth connector is used for being connected with an indoor gas pipeline. The indoor fuel gas detection device has the advantages that the second connector is connected with the exhaust pipe, residual fuel gas in a pipeline can be conveniently discharged, meanwhile, the second connector can be used for being connected with a manual blast pump, pressure testing is convenient, the exhaust pipe and the manual blast pump cannot be used at the same time, the exhaust pipe and the manual blast pump can share one connector position, and the cost is reduced. One joint is saved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas engineering technology, and in particular to an indoor gas detection device. Background Technology

[0002] Compared to developed countries, China's gas supply industry started relatively late. The main types of gas supplied include coal gas, liquefied petroleum gas (LPG), and natural gas. Gas supply has grown significantly since the 1990s. Among them, the supply of manufactured gas, after a significant increase in 1990, has entered a relatively slow growth phase due to its drawbacks such as high pollution and toxicity. The supply of LPG has remained stable due to the impact of rising oil prices. Natural gas, which produces the same calorific value, is 30%-50% cheaper than gasoline and diesel, making it significantly more economical. At the same time, with the country increasingly emphasizing environmental protection, the market demand for clean energy continues to grow. As a clean, efficient, and inexpensive energy source, natural gas consumption has experienced rapid development.

[0003] When gas companies perform gas connection and ignition operations for residential users, they need to inspect the low-pressure pipelines in the residential users' homes. The existing technology usually uses a manual air pump, tee, pressure gauge and hose. However, during use, the pressure gauge needs to be disassembled to switch the connection with the equipment. When the equipment releases gas, it releases gas directly into the room, which will result in a strong gas smell in the house, as well as safety hazards and a poor user experience. Utility Model Content

[0004] One objective of this application is to provide an indoor gas detection device that can discharge residual gas from residual pipelines to the outdoors.

[0005] The technical solution adopted in this application is: an indoor gas detection device, applied between indoor gas pipelines and gas appliances, including a four-way connector, a pressure gauge, an exhaust pipe and a manual air pump. The four-way connector includes a first connector, a second connector, a third connector and a fourth connector. The first connector is connected to the pressure gauge, the second connector is connected to the exhaust pipe or the manual air pump, the third connector is used to connect to the gas appliance, and the fourth connector is used to connect to the indoor gas pipeline.

[0006] Compared with the prior art, the advantages of this application are that the second connector is connected to the exhaust pipe, which facilitates the removal of residual gas in the pipe to the outdoors. At the same time, the second connector can also be used to connect to a manual air pump for convenient pressure testing. Furthermore, the exhaust pipe and the manual air pump are not used at the same time and can share a connector position, saving a connector and reducing costs.

[0007] In some embodiments of this application, the four-way connector is provided with a first valve. The first valve is used to control the opening and closing of the first connector. That is, the first valve can control whether gas can enter the pressure gauge. When it is not necessary to detect the gas pressure, the first valve can be closed to extend the service life of the pressure gauge. At the same time, closing the first valve also reduces the impact of the pressure gauge on the pipeline.

[0008] In some embodiments of this application, the four-way connector is provided with a second valve. The second valve is used to control the opening and closing of the second connector. That is, the second valve can control the exhaust of the exhaust pipe or control the gas entering the manual air pump, which improves the flexibility of use and can prevent air leakage when the second connector is replaced.

[0009] In some embodiments of this application, the four-way connector is provided with a third valve, which is used to control the opening and closing of the third connector. That is, the third valve can control whether gas can enter the gas equipment, and the gas equipment side pipeline can be eliminated by closing the third valve.

[0010] In some embodiments of this application, the second connector is provided with a quick connector, which connects the second connector to an exhaust pipe or a manual air pump. The quick connector allows for quick insertion and removal of the exhaust pipe or manual air pump, facilitating installation and disassembly.

[0011] In some embodiments of this application, the exhaust pipe is a flexible hose. Flexible hoses are flexible and can adapt to different bending radii and lengths. In particular, indoor gas pipelines are generally installed in narrow locations, where rigid pipes may be difficult to bend into. Furthermore, indoor gas detection devices may be installed far from windows or in another room; flexible hoses can adapt to bending routes and easily extend outdoors.

[0012] Furthermore, it also includes a reel, with the exhaust pipe mounted on it. The exhaust pipe is stored on the reel, making it convenient to carry and easy to access.

[0013] Furthermore, the reel is provided with a fixing buckle for securing the exhaust pipe.

[0014] In some embodiments of this application, the outer ends of the first connector, the second connector, and the third connector are all external threaded interfaces.

[0015] In some embodiments of this application, the outer end of the fourth connector is an internally threaded live connector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 2 ;

[0018] Figure 3 This is a structural schematic diagram of the usage state of Embodiment 1 of this utility model.

[0019] In the diagram: 1. Four-way connector; 2. Gas pressure gauge; 3. Exhaust pipe; 4. Manual air pump; 5. First connector; 6. Second connector; 7. Third connector; 8. Fourth connector; 9. First valve; 10. Second valve; 11. Third valve; 12. Quick connector; 13. Reel; 14. Internal threaded union; 15. Gas meter; 16. Main gas valve; 17. Gas stove; 18. Water heater. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Example 1:

[0022] This embodiment provides an indoor gas detection device, such as... Figure 1 , Figure 2 , Figure 3 As shown, this device, used between indoor gas pipelines and gas appliances, includes a four-way connector 1, a pressure gauge 2, an exhaust pipe 3, and a manual air pump 4. The four-way connector 1 includes a first connector 5, a second connector 6, a third connector 7, and a fourth connector 8. The first connector 5 is connected to the pressure gauge 2, the second connector 6 is connected to the exhaust pipe 3 or the manual air pump 4, the third connector 7 is used to connect to the gas appliance, and the fourth connector 8 is used to connect to the indoor gas pipeline. In this embodiment, the gas appliance is a gas stove 17 and a water heater 18.

[0023] The second connector 6 is connected to the exhaust pipe 3 to facilitate the discharge of residual gas in the pipe to the outdoors. Simultaneously, the second connector 6 can also be connected to the manual air pump 4 for pressure testing. Furthermore, the exhaust pipe 3 and the manual air pump 4 are not used simultaneously, sharing a single connector position, saving one connector and reducing costs. After closing the main gas valve 16, connect the third connector 7 to the gas appliance's pipeline and the fourth connector 8 to the indoor gas pipeline, allowing the four-way connector 1 to connect between the main gas valve 16 and the gas appliance. First, connect one end of the exhaust pipe 3 to the second connector 6, with the other end extending outdoors, allowing residual gas in the pipe to be directly discharged outdoors through the exhaust pipe 3. After discharging the residual gas, remove the exhaust pipe 3 from the second connector 6 and connect the manual air pump 4 to the second connector 6. Pressure testing can then be performed by pumping air through the manual air pump 4.

[0024] To improve the flexibility of use, the four-way connector 1 is provided with a first valve 9. The first valve 9 is used to control the opening and closing of the first connector 5. The first valve 9 is located on one side of the first connector 5 on the four-way connector 1. That is, the first valve 9 can control whether gas can enter the pressure gauge 2. When it is not necessary to detect the gas pressure, the first valve 9 can be closed to extend the service life of the pressure gauge 2. At the same time, closing the first valve 9 also reduces the impact of the pressure gauge 2 on the pipeline.

[0025] To improve usability, the four-way connector 1 is equipped with a second valve 10, which controls the opening and closing of the second connector 6. The second valve 10 is located on one side of the second connector 6 on the four-way connector 1. That is, the second valve 10 can control the exhaust of the exhaust pipe 3 or the gas entry of the manual air pump 4. When the second connector 6 is connected to the exhaust pipe 3, the exhaust can be directly closed by the second valve 10. After use, the second valve 10 can be opened to start exhausting. It is flexible and convenient to use, and there is no need to disassemble the exhaust pipe 3 and install a plug to prevent gas from leaking out from the second connector 6. When the second connector 6 is connected to the manual air pump 4, after the manual air pump 4 has finished pumping air, the second valve 10 can be closed to eliminate the influence of air leakage from the manual air pump 4. At the same time, it facilitates the disassembly of the manual air pump 4 and will not cause air leakage when disassembling the manual air pump 4.

[0026] To improve the flexibility of use, the four-way connector 1 is provided with a third valve 11. The third valve 11 is used to control the opening and closing of the third connector 7. The third valve 11 is located on one side of the third connector 7 on the four-way connector 1. That is, the third valve 11 can control whether gas can enter the gas equipment. By closing the third valve 11, the gas leakage of the gas equipment side pipeline can be eliminated.

[0027] To facilitate quick replacement of the exhaust pipe 3 or the manual air pump 4, the second connector 6 is equipped with a quick connector 12, which connects the second connector 6 to the exhaust pipe 3 or the manual air pump 4. In this embodiment, the quick connector 12 is a flexible hose quick connector. The quick connector 12 allows for quick insertion and removal of the exhaust pipe 3 or the manual air pump 4, facilitating installation and disassembly.

[0028] To facilitate the installation of the exhaust pipe 3 outdoors, the exhaust pipe 3 is made of a flexible hose. The flexible hose has good flexibility and can adapt to different bending radii and lengths. In particular, the indoor gas pipeline is generally installed in a narrow space, and rigid pipes may be difficult to bend into. In addition, the indoor gas detection device may be installed far from the window or in another room. The flexible hose can adapt to the bending route and is easy to extend outdoors.

[0029] To facilitate the storage of the exhaust pipe 3, a reel 13 is also included. The exhaust pipe 3 is set on the reel 13. In order to ensure that one end of the exhaust pipe 3 can extend outdoors, the length of the exhaust pipe 3 carried is generally long, which is inconvenient to take out and use, and is also easy to get tangled, affecting work efficiency. The exhaust pipe 3 is stored by the reel 13, which is convenient to carry and easy to take out and use.

[0030] To ensure reliable fixation of the exhaust pipe 3, the reel 13 is equipped with fixing buckles for securing the exhaust pipe 3. In this embodiment, four fixing buckles are provided on the reel 13. The design of the fixing buckles allows the exhaust pipe 3 to be fixed inside the reel 13, and at the same time, it can be placed outside the window according to different indoor lengths without retracting because the exhaust pipe 3 is a flexible hose.

[0031] For ease of connection, the outer ends of the first connector 5, the second connector 6, and the third connector 7 are all external threaded interfaces.

[0032] To facilitate connection with indoor gas pipelines, the outer end of the fourth connector 8 is an internally threaded union 14, which facilitates connection and matching with indoor gas pipelines.

[0033] When using, first close the main gas valve 16, disconnect the gas appliance's pipeline from the gas meter 15, then connect the third connector 7 to the gas appliance's pipeline, and connect the fourth connector 8 to the indoor gas pipeline of the gas meter 15. At this time, there is still natural gas remaining in the gas pipeline, which needs to be vented. Therefore, connect one end of the vent pipe 3 to the quick connector 12 on the second connector 6, and place the other end of the vent pipe 3 outdoors. Then open the second valve 10 and the third valve 11 to allow the natural gas in the pipeline to be discharged outdoors along the vent pipe 3.

[0034] After venting, perform a gas leak test. Remove the exhaust pipe 3 and connect the manual air pump 4 to the quick connector 12 on the second connector 6. Open the first valve 9 to connect the pressure gauge 2 to the pipeline. Use the manual air pump 4 to pump air until the pressure in the pipeline reaches the test value. Then close the first valve 9, and the pipeline is in a pressure-maintaining state. Observe whether the reading of the pressure gauge 2 decreases. If the reading does not decrease, the pipeline is normal; if the reading decreases, there is a leak in the pipeline. At this time, close the third valve 11 and continue to observe the reading of the pressure gauge 2. If the reading continues to decrease, the pipeline leaks at the gas meter 15. If the reading no longer decreases, the leak is on the gas appliance side. In the case of two or more gas appliances, closing the third valve 11 can distinguish whether the gas appliance connected to the indoor gas detection device is leaking. By opening and closing the valve between the remaining gas appliances and the gas meter 15, it is possible to distinguish whether the remaining gas appliance's pipeline is leaking. By determining the leak section, staff can further investigate the sealing leak point. In particular, household gas appliances are generally two: a gas stove and a water heater, so it is not necessary to disassemble and reassemble the indoor gas detection device multiple times.

[0035] After the gas leak test is completed, dynamic and static pressure tests are performed. The third valve 11 is closed, and all other valves are open. The main gas valve 16 is opened to allow the gas to move normally in the pipeline. The gas equipment is turned on, and the dynamic value of the gas pressure gauge 2 is observed to confirm the gas stability when the gas equipment is working. The gas equipment is turned off, and the static value of the gas pressure gauge 2 is observed.

[0036] After the test is completed, remove the manual air pump 4 and connect the exhaust pipe 3 to the quick connector 12 on the second connector 6. Open the third valve 11 to allow the gas mixed with air in the gas pipeline to be discharged through the exhaust pipe 3. The staff can use the equipment to read the gas concentration value at the outlet of the exhaust pipe 3 to ensure that the gas concentration in the gas pipeline is qualified.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An indoor gas detection device applied between an indoor gas pipeline and a gas equipment, characterized in that, The utility model relates to a gas pressure regulating device, which comprises a four-way joint (1), a gas pressure gauge (2), an exhaust pipe (3) and a manual air pump (4), wherein the four-way joint (1) comprises a first joint (5), a second joint (6), a third joint (7) and a fourth joint (8), the first joint (5) is connected with the gas pressure gauge (2), the second joint (6) is connected with the exhaust pipe (3) or the manual air pump (4), the third joint (7) is used for being connected with a gas equipment, and the fourth joint (8) is used for being connected with an indoor gas pipeline.

2. The indoor gas detection device according to claim 1, characterized in that: The four-way joint (1) is provided with a first valve (9) for controlling the on-off of the first joint (5).

3. The indoor gas detection device of claim 1, wherein: The four-way joint (1) is provided with a second valve (10) for controlling the on-off of the second joint (6).

4. The indoor gas detection device of claim 1, wherein: The four-way joint (1) is provided with a third valve (11) for controlling the on-off of the third joint (7).

5. The indoor gas detection device of claim 1, wherein: The second joint (6) is provided with a quick connector (12), and the second joint (6) is connected with the exhaust pipe (3) or the manual air pump (4) through the quick connector (12).

6. The indoor gas detection device of claim 1, wherein: The exhaust pipe (3) is a hose.

7. An indoor gas detection device according to claim 6, characterised in that: The utility model further comprises a reel (13), and the exhaust pipe (3) is arranged on the reel (13).

8. An indoor gas detection device according to claim 7, characterised in that: The reel (13) is provided with a fixing buckle for fixing the exhaust pipe (3).

9. The indoor gas detection device of claim 1, wherein: The outer end of the first joint (5), the outer end of the second joint (6) and the outer end of the third joint (7) are all external thread interfaces.

10. The indoor gas detection device of claim 1, wherein: The outer end of the fourth joint (8) is an internal thread live joint (14).

Images