Gas pipeline leak detection and alarm device with emergency cut-off function

Abstract

The invention provides a gas pipeline leak detection and alarm device with the emergency cut-off function. The gas pipeline leak detection and alarm device with the emergency cut-off function comprises a detachable pipe body, a movable sealing ball core, a detection sensor, an adjustable resistance spring, a gas flow regulation pipe, a sound and light alarm module and the like. The gas pipeline leak detection and alarm device with the emergency cut-off function is perpendicularly installed on a user gas pipeline, and by utilizing the principle that gas flow is generated because of differentialpressure formed in the pipeline under the situation of leakage during gas using, the light movable sealing ball core in the device is enabled to suspend in air, and then triggers the sound and lightalarm module to give out an alarm signal; under the situation that gas is overused or gas leaks out after the pipeline disconnects, the movable sealing ball core is stressed with thrust of gas flow below and quickly moves upwards till the movable sealing ball core completely seals a gas outlet to stop leakage, and the emergency cut-off function for safety is achieved; and after a user stops usinggas appliances such as a kitchen range and a water heater, the user gas pipeline automatically goes into the protection state for 24-hour leakage detection and alarm. The gas pipeline leak detection and alarm device with the emergency cut-off function has the advantages of being simple in structure, low in cost, high in safety, and capable of adapting to various places needing gas.

Description

technical field [0001] The invention provides a new gas pipeline leakage detection and alarm device with emergency cut-off, which is vertically installed on the gas pipeline at the user end, and utilizes the principle of differential pressure in the pipeline to generate gas flow in the case of gas leakage, so that the device can The lightweight movable sealing ball core is suspended in the air, and the sound and light alarm module is triggered to send out an alarm signal; and in the case of excessive gas usage or the pipeline is completely disengaged and leaking, the movable sealing ball core is moved upward rapidly by the thrust of the strong airflow below until it completely seals the gas. The outlet stops leaking and has the function of emergency cut-off; when the gas equipment such as stoves and water heaters is stopped, the gas pipeline at the user end will automatically enter the protection state of 24-hour leak detection and alarm. When a leak occurs, a specific sound an...

AI Technical Summary

Problems solved by technology

However, the above two methods have certain limitations. Gas leakage cannot be detected quickly, and the gas leakage can only be detected or triggered when the leakage reaches a certain concentration. The local concentration in the room may have reached an explosive concentration, which is a passive detection. The means, especially in the case of a small amount of leakage, cannot actively detect the state of gas pipeline leakage and pressure loss and gas flow, and essentially fail to effectively ensure the safety and reliability of gas use, so people have serious safety hazards during the use of gas. Hidden danger

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