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OwnerJohannes Gertrudis Josephus van der Donk, Johannes Henricus Petrus Maria Heijmansinventors
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An arrangement is disclosed of a gas delivery control system (1) and one or more appliances (AP) including a central heating installation. The one or more appliances are arranged for generating a request signal (S1) indicative for a requested supply of gas by at least one of the appliances. The gas delivery control system comprises, —a controllable gas valve (10) having an input (12) to be coupled to a gas supply (GS) via a conduit (22) and having an output (14), —a control device (30) for controlling the controllable valve, wherein the control device controls the controllable valve in accordance with a value of the request signal of the one or more appliances coupled to the output of the valve via a conduit, —a gas pressure sensor (40) for determining whether the gas pressure in the conduit has a value lower than a pressure reference value, —a reference module (50) for determining whether a predetermined time interval has lapsed since a closure of the controllable gas valve, —an error signaling module (60) for issuing an error signal (Error) if it is detected before a lapse of the predetermined time interval that the gas pressure is lower than the pressure reference value.
Arrangement of a gas delivery control system (1) and one or more appliances including a central heating installation, the one or more appliances being arranged for generating a request signal (S1) indicative for a supply of gas requested by at least one of the appliances, the gas delivery control system (1) comprising,
The arrangement according to one of the previous claims, wherein the gas delivery control system is coupled to an alarm centre (AC) for reporting a status of the gas delivery system (1) to said alarm centre.
The arrangement according to one of the previous claims, wherein the gas delivery control system is coupled to an alarm centre (AC) for allowing the alarm centre to activate and/or deactivate the blocking means (31).
The arrangement according to one of the previous claims, wherein the gas delivery control system is coupled with a communication system (CS) for transmission of a status of the system.
The arrangement according to one of the previous claims, wherein the gas delivery control system further comprises a gas flow sensor (40a) arranged in the conduit (22).
The arrangement according to one of the previous claims, wherein the gas delivery control system further comprises an additional gas pressure sensor (40b) arranged to measure a gas pressure in the conduit (22), preferably near the appliance (AP).
The arrangement according to one of the previous claims, wherein the gas delivery control system is at least partly integrated with/in a gas meter (SGM), the gas meter (SGM) comprising a controllable gas valve (10) and/or a gas flow sensor (40a).
The arrangement according to one of the previous claims wherein the gas delivery control system has a gas pressure sensor arranged stream downwards with respect to the controllable gas valve (10) that detects whether an under-pressure condition occurs in the conduit during an opened state of the controllable gas valve, said gas delivery control system being arranged to generate an error signal if said under-pressure condition is detected.
The arrangement according to one of the previous claims wherein the gas delivery control system has a gas pressure sensor arranged stream downwards with respect to the controllable gas valve (10) that detects whether an over-pressure condition occurs in the conduit during an opened state of the controllable gas valve, said gas delivery control system being arranged to generate an error signal if said over-pressure condition is detected.
The arrangement according to one of the previous claims, wherein the gas delivery control system has an gas under pressure sensor arranged stream upwards with respect to the controllable gas valve (10) that detects whether an under-pressure condition occurs in the conduit, said gas delivery control system being arranged to generate an error signal if said under-pressure condition is detected.
The arrangement according to one of the previous claims, wherein the gas delivery control system has a gas over pressure sensor arranged stream upwards with respect to the controllable gas valve (10) that detects whether an over-pressure condition occurs in the conduit, said gas delivery control system being arranged to generate an error signal if said over-pressure condition is detected.
The arrangement according to 26 and 27, wherein the gas under pressure sensor and the gas over pressure sensor are formed by a combined gas pressure sensor that has different detection levels, including an operational minimum level and an operational maximum level.
The arrangement according to one of the previous claims, wherein the gas request signal indicates requested gas flow level, and wherein the control device allows the controllable valve to provide a gas flow according to a gas flow level that does not differ more than a predetermined amount, e.g. in time and volume, from the requested gas flow level, the error signaling module being arranged to issue an error signal if the difference is larger than the predetermined amount and being further arranged to activate blocking means to block the valve in a closed state.
Gas delivery control method comprising
Dependencies are inferred from the claim text.