Ignition flow detection device of gas stove

Abstract

The utility model relates to an ignition flow detection device of a gas stove. The device is characterized in that the device is composed of a gas source, a pressure adjusting device, a pressure relief device, a wet-type flowmeter, a pressure gauge, a gas meter and a gas stove, the gas source is connected to the gas stove through a gas pipe via the pressure adjusting device, the wet-type flowmeter and the gas meter, and the pressure relief device is arranged on the gas pipe between the pressure adjusting device and the wet-type flowmeter. And the pressure gauge is arranged on the gas pipe between the wet flow meter and the gas meter. Liquefied petroleum gas and natural gas used by a client are adopted as gas sources, and the pressure in a pipeline is adjusted by adopting the pressure reducing valve and the pressure gauge I; the needle valve and the ball valve I are adopted, so that the pressure of the pipeline is relieved, and the pressure of the pipeline can be adjusted to be smaller; and meanwhile, the wet-type flow meter and the gas meter are adopted, so that flow detection during ignition of the gas stove is realized.

Description

Technical Field

[0001] The utility model relates to an ignition flow detection device for a gas stove. Background Art

[0002] Gas safety is a crucial component of both home and public safety. Smart gas meters monitor the pressure and flow of gas pipes flowing through users' homes in real time. Gas leaks can occur for a variety of reasons, including hose detachment, aging, and rodent bites. Smart gas meters detect abnormal flow and pressure changes, closing valves to prevent accidents and improving gas safety for users.

[0003] Currently, there is a lack of test platforms for measuring flow rates under normal user usage scenarios and comparing them with abnormal flow rates caused by gas leaks. Conventional testing methods simulate scenarios such as hose detachment, hose rupture, and cracks caused by aging, and then collect data on the flow and cumulative usage of gas meters under different pressures. However, simply collecting data on abnormal flow rates under abnormal scenarios is insufficient to support improvements in gas safety. There is a lack of test data that simulates actual user usage in different scenarios, under different operating conditions, and at different pressures to separate normal gas usage from abnormal leaks. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a technical solution for an ignition flow detection device for a gas stove.

[0005] The ignition flow detection device for a gas stove is characterized in that it consists of a gas source, a pressure regulating device, a pressure relief device, a wet flow meter, a pressure gauge, a gas meter and a gas stove. The gas source is connected to the gas stove through a gas pipe via the pressure regulating device, the wet flow meter and the gas meter. The pressure relief device is arranged on the gas pipe between the pressure regulating device and the wet flow meter, and the pressure gauge is arranged on the gas pipe between the wet flow meter and the gas meter.

[0006] The ignition flow detection device for a gas stove is characterized in that the pressure regulating device consists of a pressure reducing valve, a pressure gauge and a ball valve, the pressure reducing valve and the ball valve are connected in series to the air pipe, and a pressure gauge is provided on the air pipe between the pressure reducing valve and the ball valve.

[0007] The ignition flow detection device for a gas stove is characterized in that the pressure relief device is composed of a needle valve and a ball valve, which are connected in series on a branch pipe in sequence, one end of the branch pipe is connected to the air pipe, and the other end of the branch pipe is connected to the atmosphere.

[0008] The ignition flow detection device for a gas stove is characterized in that the wet flow meter has a capacity of 2L, an accuracy of ±1%, and a rated flow of 200L / h, and is used for comparison with the flow data of the gas meter.

[0009] The ignition flow detection device for a gas stove is characterized in that the pressure gauge is a low-pressure gauge with a measuring range of 0-10kPa, which is used to monitor the pressure change at the gas meter inlet end before and after the gas stove is ignited.

[0010] The ignition flow detection device for a gas stove is characterized in that the gas outlet of the gas meter and the gas stove are connected by a rubber hose, which has a length of 2m and an inner diameter of 9.5mm.

[0011] The ignition flow detection device for a gas stove is characterized in that the gas stove adopts two burners, namely a left burner and a right burner, with a heat load of 5.0kW; the left burner is an ordinary burner, and the right burner is a high-fire burner.

[0012] The ignition flow detection device for a gas stove is characterized in that the gas source is liquefied petroleum gas or natural gas.

[0013] The gas source of the utility model adopts liquefied petroleum gas and natural gas used at the user end, and the pressure in the pipeline is regulated by adopting a pressure reducing valve and a pressure gauge; the pressure of the pipeline is relieved by adopting a needle valve and a ball valve, so that the pipeline can be adjusted to a lower pressure; at the same time, the flow rate when the gas stove is ignited is detected by adopting a wet flow meter and a gas meter.

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

[0015] 1. The gas source uses liquefied petroleum gas and natural gas to simulate the user-side gas use and firing scenario, providing more reliable test data for gas use scenarios in gas user safety research;

[0016] 2. Use a pressure reducing valve to adjust the pressure so that the gas stove can ignite under different pressure conditions, and provide gas stove ignition flow data under different pressure scenarios;

[0017] 3. The use of pressure relief device can adjust the pipeline pressure to a smaller level and provide a wider pressure range;

[0018] 4. The wet flow meter and gas meter are used to simultaneously monitor the cumulative usage and flow rate when the gas stove is ignited, which improves the accuracy of the test data;

[0019] 5. The gas stove adopts double burner eyes, the left burner eye is a normal burner eye, and the right burner eye is a high-fire burner eye. It can provide ignition flow data under different types of burner eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] In the figure: 1-gas source, 2-gas pipe, 3-pressure regulating device, 4-pressure reducing valve, 5-pressure gauge one, 6-ball valve, 7-pressure relief device, 8-ball valve one, 9-needle valve, 10-wet flowmeter, 11-pressure gauge, 12-gas meter, 13-gas stove, 14-left burner, 15-right burner. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings of the specification:

[0023] As Figure 1 shown, the utility model discloses a gas source 1, pressure regulating device 3, pressure relief device 7, wet flowmeter 10, pressure gauge 11, gas meter 12 and gas stove 13 are formed, and the gas source 1 is connected to the gas stove 13 through the gas pipe 2 via pressure regulating device 3, wet flowmeter 10, gas meter, and the pressure relief device 7 is arranged on the gas pipe 2 between pressure regulating device 3 and wet flowmeter 10, and the pressure gauge 11 is arranged on the gas pipe 2 between wet flowmeter 10 and gas meter 12.

[0024] Pressure regulating device 3 is composed of pressure reducing valve 4, pressure gauge one 5 and ball valve 6, and pressure reducing valve 4 and ball 6 are connected in series on the gas pipe, and pressure gauge one 5 is arranged on the gas pipe between pressure reducing valve 4 and ball valve 6.When the pipeline pressure is too large when the gas source 1 enters the gas pipe 2, the valve state can be adjusted by ball valve 6 to protect the wet flowmeter 10 and gas meter 11 at the rear end, and the pipeline pressure can be adjusted by pressure reducing valve 4.

[0025] Pressure relief device 7 is composed of needle valve 9 and ball valve one 8, and needle valve 9 and ball valve one 8 are connected in series on the branch pipe, one end of the branch pipe is connected to the gas pipe 2, and the other end of the branch pipe is communicated with the atmosphere, and the branch pipe can also be connected to a gas collecting device such as a gas collecting bottle.When the pressure reducing valve 4 cannot meet the smaller pressure required by the test, the needle valve 9 is opened to make part of the gas enter the pressure relief device 7, and the gas is discharged through the ball valve one 8 to realize the pressure relief of the pipeline.

[0026] The capacity of wet flowmeter 10 is 2L, the accuracy is ±1%, and the rated flow is 200L / h, and when measuring the cumulative amount of gas, the accuracy is high, especially when the flow is small, the error is small, and the wet flowmeter can be directly used for measuring gas flow, and can also be used as a standard instrument to compare test data with gas meter 12.

[0027] The pipeline pressure of the user end is low, so the pressure gauge 11 adopts a low-pressure gauge, the range is 0-10kPa, and is used for monitoring the pressure change of the gas inlet end of gas meter 12 before and after the ignition of gas stove 13; the gas pipe 2 connected between the gas outlet end of gas meter 12 and gas stove 13 adopts a rubber hose, the length is 2m, the inner diameter is 9.5mm, and the hose connection between the gas appliance and the gas meter of the user end is simulated.

[0028] The gas stove 13 adopts two burners, namely the left burner 14 and the right burner 15, with a heat load of 5.0kW; the left burner 14 is an ordinary burner, and the right burner 15 is a high-fire burner, which can simulate the ignition flow of the two burners under different pressures.

[0029] Testing process:

[0030] Open the gas source 1, close the ball valve 6, and adjust the pipeline pressure through the pressure reducing valve 4. After adjusting to the corresponding test pressure, open the ball valve 6. If the pressure reducing valve 4 cannot be adjusted to a lower required pressure value, open the needle valve 9 and the ball valve 8 to release the pressure until the pressure is released to the required pressure value.

[0031] Manually read and record the displayed values ​​of the wet flow meter 10, pressure gauge 11, and gas meter 12 before testing;

[0032] The left burner 14 and the right burner 15 of the gas stove 13 were ignited 20 times, and each burning time was 3 seconds.

[0033] During the ignition process, the pressure drop value of the pressure gauge 11 and the instantaneous maximum flow of the gas meter 12 for each ignition are manually read and recorded; after each ignition, the cumulative usage of the wet flow meter 10 and the gas meter 12 are manually read and recorded, and the average cumulative usage and flow of a single ignition are calculated.

[0034] Test end process:

[0035] When the test task is completed, close the ball valve 6 and the needle valve 9.

[0036] The utility model provides a test platform for flow detection in normal gas usage scenarios of users, which is used to compare abnormal flow caused by gas leakage. During operation, the test platform can be used to switch valves, simulate gas leakage, record flow, and perform other operations according to different needs, thereby truly simulating the test data of actual users in different gas usage scenarios, different usage conditions, and different pressures, and separating normal gas usage conditions from abnormal leakage conditions.

Claims

1. A gas stove ignition flow detection device, characterized in that It consists of a gas source, a pressure regulating device, a pressure relief device, a wet flow meter, a pressure gauge, a gas meter and a gas stove. The gas source is connected to the gas stove through a gas pipe via the pressure regulating device, the wet flow meter and the gas meter. The pressure relief device is arranged on the gas pipe between the pressure regulating device and the wet flow meter, and the pressure gauge is arranged on the gas pipe between the wet flow meter and the gas meter.

2. The ignition flow detection device for a gas stove according to claim 1, characterized in that The pressure regulating device consists of a pressure reducing valve, a pressure gauge and a ball valve. The pressure reducing valve and the ball valve are connected in series on the air pipe, and a pressure gauge is set on the air pipe between the pressure reducing valve and the ball valve.

3. The ignition flow detection device for a gas stove according to claim 1, characterized in that The pressure relief device consists of a needle valve and a ball valve, which are connected in series on a branch pipe in sequence. One end of the branch pipe is connected to the air pipe, and the other end of the branch pipe is connected to the atmosphere.

4. The ignition flow detection device for a gas stove according to claim 1, characterized in that The wet flow meter has a capacity of 2L, an accuracy of ±1%, and a rated flow of 200L / h, and is used for comparison with the flow data of the gas meter.

5. The ignition flow detection device for a gas stove according to claim 1, characterized in that The pressure gauge is a low-pressure gauge with a measuring range of 0-10 kPa, and is used to monitor the pressure change at the gas inlet end of the gas meter before and after the gas stove is ignited.

6. The ignition flow detection device for a gas stove according to claim 1, characterized in that The gas outlet of the gas meter is connected to the gas stove by a rubber hose, which has a length of 2m and an inner diameter of 9.5mm.

7. The ignition flow detection device for a gas stove according to claim 1, characterized in that The gas stove adopts double burners, namely a left burner and a right burner, with a heat load of 5.0kW; the left burner is an ordinary burner, and the right burner is a high-fire burner.

8. The ignition flow detection device for a gas stove according to claim 1, characterized in that The gas source is liquefied petroleum gas or natural gas.

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