33results about How to "Ensure gas safety" patented technology

This application discloses a pure electric truck air brake energy supply pipeline system and its control method, and relates to the technical field of air brake systems. The air brake energy supply pipeline system includes: an electric air compressor; an air dryer, which passes through The first air supply pipeline communicates with the electric air compressor, and a pressure switch is installed on the air dryer; the protection valve communicates with the air dryer through the second air supply pipeline, and a tee joint and a pressure sensor are arranged on the second air supply pipeline; The pressure switch is used to feed back its on-off signal to the vehicle controller; the pressure sensor is used to detect the pressure value of the second air supply pipeline and feed it back to the vehicle controller; the vehicle controller is used to Control the start and stop of the electric air compressor. This application can ensure the safety of air used by the whole vehicle, avoid frequent start-up and stop of the electric air compressor, prolong the service life of the electric air compressor, and avoid electromagnetic interference to other systems caused by the frequent start-up of the electric air compressor.

The invention discloses a gas stove intelligent control system, which comprises a control chip, a solenoid valve drive module, a proportional valve control module and a pulse ignition detection module, and the solenoid valve drive module, the proportional valve control module and the pulse ignition detection module are respectively connected with the control chip. Therefore, the solenoid valve drive module is controlled by the control chip to control the opening or closing of the main gas supply valve of the gas cooker to control the gas supply or cut-off of the gas cooker, and the gas supply volume of the gas cooker can be controlled by controlling the opening of the proportional valve through the control chip. The size is used to control the firepower of the gas stove, realize the intelligent control of the gas stove, and ensure the gas safety of the gas stove.

The invention discloses a safety cut-off type IC card intelligent mass flow gas meter and its management system, belonging to a gas metering device. The gas meter includes a microcomputer controller, a microelectromechanical metering unit, a valve control circuit and a communication module. The micro-electromechanical metering unit is connected to the microcomputer controller through the signal acquisition unit and the signal processing unit in turn; the microcomputer controller is connected to the shut-off valve through the valve control circuit; the microcomputer controller is also connected to the communication module; the present invention uses The principle of mass flow measurement, without mechanical transmission parts, avoids the measurement problems caused by mechanical aging, and ensures the measurement accuracy; and achieves the temperature correction function by mass flow measurement, without external correction devices for temperature and pressure compensation, and the entire meter is small in size , high measurement accuracy and high reliability.

The invention discloses a gas water heater. The gas water heater comprises a combustion chamber, a fan, a constant-current regulating module and a control module, wherein the fan is used for conveying air to the combustion chamber and discharging the combustion tail gas in the combustion chamber out of the chamber; the constant current regulating module is used for collecting current signals of the fan and regulating the fan to run in constant current according to the current signals and control signals of the fan; and the control module is used for outputting the control signals of the fan to control the fan. The gas water heater has the advantages that when the exhaust is not smooth, the normal air supply in the combustion chamber can be guaranteed to carry out normal combustion and guarantee the safety. The invention also discloses an exhaust controlling method of the gas water heater.

The invention discloses a stainless steel bellows hybrid intelligent leakage detection method based on wireless sensor linkage, and belongs to the field of gas leakage detection. The pressure sensor and flow sensor in the leak detection box of the present invention detect the gas pressure and flow signal in the pipeline in real time, and transmit the vibration signal detected by the vibration sensor to the CPU processor in the leak detection box, and the CPU processor transmits the signal characteristics through The communication module transmits to the data platform server; the data platform server comprehensively judges the pipeline status based on the extracted features, and when the feature is judged to be gas leakage, the CPU processor controls the automatic pipeline valve and controls the alarm module to alarm. The invention overcomes the lack of safety of indoor gas pipelines in the prior art, and aims to improve the efficiency and accuracy of gas leakage detection of a stainless steel corrugated pipeline system for indoor gas.

The invention discloses a control circuit of a quick ignition device of a gas cooker. The control circuit comprises an ignitor, an electromagnetic valve, a time delay circuit and a first drive circuit, wherein the electromagnetic valve is coupled with a first coil and a second coil; an input end of the first drive circuit is connected with an output end of the time delay circuit; the control circuit is characterized by also comprising a second drive circuit, wherein the input end of the second drive circuit is connected with the first drive circuit; and the output end of the second drive circuit is in series connection with the second coil. Compared with the prior art, the control circuit has the advantages that: one path of originally independent drive circuit is designed into the first drive circuit and the second drive circuit which are independent of each other and are connected in series; when the ignition circuit works, the electromagnetic valve can only be attracted when the first drive circuit and the second drive circuit are simultaneously switched on; and if a switching element of the first drive circuit is short-circuited, the first drive circuit is failed, because the second drive circuit can still work normally, normal power-down of the second coil of the electromagnetic valve can also be ensured after the ignition switch is disconnected; and thus the electromagnetic valve can be ensured to be under control.

The invention discloses a downstream under-pressure automatic closing pressure regulator, which mainly consists of a main valve, a main regulation diaphragm box, a pressure regulation director ZH and a back pressure controller HK, wherein the main regulation diaphragm box is assembled on the main valve, and the back pressure controller HK is arranged at the air inlet end of the pressure regulation director ZH. The downstream pipeline pressure is guided into the back pressure controller HK to act on a back pressure diaphragm, and pressure regulation air source signals input into the pressure regulation director can be controlled. When the downstream pressure is higher than the set under-pressure value, the pressure regulation director can obtain a signal air source to carry out pressure regulation operation on the main valve, when the downstream pressure is lower than the set under-pressure value, the back pressure controller can be automatically closed, and the signal air source is cut off, so that the pressure regulator loses the control pressure, the main valve is closed, and the potential safety hazards during the maintenance operation on the downstream pipeline repair operation are thoroughly eliminated, and the gas use safety of downstream users is ensured. The downstream under-pressure automatic closing pressure regulator has the obvious advantages that the structure is simple, the production cost is low, the installation and the use are convenient, the operation is stable, the work life is long, and the safety performance is high. The downstream under-pressure automatic closing pressure regulator has very good application prospects in gas conveying industry.

The invention discloses an IC card intelligent mass flow gas meter and its management system, belonging to a gas metering device. The gas meter includes a microcomputer controller, a microelectromechanical metering unit, a valve control circuit and a communication module. The electromechanical metering unit is sequentially connected to the microcomputer controller through the signal acquisition unit and the signal processing unit; the microcomputer controller is connected to the electromechanical valve through the valve control circuit; the microcomputer controller is also connected to the communication module; the present invention adopts mass flow metering The principle, no mechanical transmission parts, avoids the measurement problems caused by mechanical aging, and ensures the measurement accuracy; and achieves the temperature correction function by mass flow measurement, without external correction devices for temperature and pressure compensation, the entire meter is small in size, and the measurement accuracy is high. High, strong reliability.

The invention discloses a safety cut-off type remote control intelligent mass flow gas meter and its management system, which belongs to a gas metering device. The gas meter includes a microcomputer controller, a microelectromechanical metering unit, and a valve control circuit for gas use state collection. Processing unit and communication module, the micro-electromechanical metering unit is connected to the microcomputer controller through the signal acquisition unit and the signal processing unit in turn; the microcomputer controller is connected with the cut-off valve through the valve control circuit; the microcomputer controller is also connected to the communication module The invention adopts the principle of mass flow measurement without mechanical transmission parts, avoids the measurement problems caused by mechanical aging, and ensures the measurement accuracy; and achieves the temperature correction function by mass flow measurement, without external correction devices for temperature and pressure. Compensation, the whole meter is small in size, high in measurement accuracy and strong in reliability.