A valve control method and system for intelligently opening a gas safety valve
A technology of gas safety valve and intelligent opening, which is applied in the direction of valve details, valve device, valve operation/release device, etc. It can solve the problems of inability to monitor, high maintenance cost, and inability to realize automatic opening of valves, etc.
Active Publication Date: 2022-01-25
CHENGDU HOMESAFE TECH CO LTD
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Problems solved by technology
[0004] 1. The gas supply pressure of the pipeline gas self-closing valve through the pipeline is under-pressured or over-pressured to order the gas safety valve to be closed, and the valve can only be closed when the flow rate is greater than the set over-current flow rate
The actual gas leakage often starts from a small leak. At the same time, the pipeline gas self-closing valve is a mechanical structure, which cannot realize the function of automatically opening the valve. Leakage with a flow rate smaller than the excess flow rate cannot be monitored, therefore, it has a great disadvantage
[0005] 2. The traditional gas linkage safety valve sends an alarm or executes the valve closing command through the judgment of the gas concentration. However, due to the large space in the kitchen, when the gas concentration reaches the alarm or can execute the valve closing command, it will take a certain amount of time and cannot Quickly order the gas safety valve to close when the gas leaks
[0006] 3. The traditional gas linkage safety valve needs to monitor the pressure, temperature and carbon monoxide concentration based on a variety of sensors to give an alarm or execute a valve closing command. The result of the gas safety valve opening or closing judgment is complicated, and the gas safety valve is expensive and maintenance costs High, not conducive to market promotion
Method used
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[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the accompanying drawings in the following description are only some examples or embodiments of this specification, and those skilled in the art can also apply this specification to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.
[0029] It should be understood that "system", "device", "unit" and / or "module" as used herein is a method for distinguishing different components, elements, components, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.
[0030] As indicated in the specification and claims, the terms "a", "an", "an" and / or "the...
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The invention relates to the technical field of gas safety use, and discloses a method for intelligently opening a gas safety valve. The method includes: obtaining the rated pressure of the gas safety valve; obtaining the rated pressure loss of the gas safety valve; A parameter set, the first parameter set includes at least two of the actual outlet pressure, the actual inlet pressure or the actual pressure loss; based on the rated pressure, the first parameter set determines the temporary rated pressure loss; based on the temporary rated pressure loss and the The above rated pressure loss determines the open or closed state of the gas safety valve. The invention can realize the purpose of quickly and accurately opening the gas safety valve, and determines the opening of the gas safety valve based on the real-time acquisition of the pressure or pressure difference between the gas inlet and the gas outlet of the gas safety valve, so that the gas safety valve can be opened more quickly and accurately.
Description
technical field [0001] The invention relates to the technical field of safe use of gas, in particular to a valve control method and system for intelligently opening a gas safety valve. Background technique [0002] The gas safety valve is used to monitor whether there is gas leakage in the gas equipment, the pipeline between the gas safety valve and the gas equipment, and open or close the valve according to the monitoring results. [0003] At present, the gas safety valves on the market have the following problems: [0004] 1. The gas supply pressure of pipeline gas self-closing valve through the pipeline is under-pressure or over-pressure to order the gas safety valve to be closed, and the valve can only be closed when the flow rate is greater than the set over-current flow rate. The actual gas leakage often starts from a small leak. At the same time, the pipeline gas self-closing valve is a mechanical structure, which cannot realize the function of automatically opening ...
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IPC IPC(8): F16K31/02F16K37/00
CPCF16K31/02F16K37/0091
Inventor 刘红斌康逸
Owner CHENGDU HOMESAFE TECH CO LTD