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

The invention discloses a safety cut-off type remotely-controlled intelligent mass flow rate gas meter and a management system thereof, and belongs to a gas metering device. The gas meter comprises a microcomputer controller, a micro-electro-mechanical system metering unit, a valve control circuit, a gas working condition collecting and processing unit and a communication module. The micro-electro-mechanical system metering unit accesses to the microcomputer controller through a signal collection unit and a signal processing unit sequentially. The microcomputer controller is connected with a cut-off valve through the valve control circuit and is also connected with the communication module. The safety cut-off type remotely-controlled intelligent mass flow rate gas meter and the management system thereof have the advantages that a mass flow rate metering principle is adopted, and mechanical transmission components are omitted, so that metering problems caused by mechanical aging are avoided, and metering accuracy is guaranteed; a temperature correction function is achieved through mass flow rate metering, a correction device does not need to be arranged externally to compensate temperature and pressure, and the whole meter is small in size, high in metering accuracy and high in 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 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 air brake energy supply pipeline system of a pure electric truck and a control method thereof, and relates to the technical field of air brake systems. The air brake energysupply pipeline system comprises the components of an electric air compressor; an air dryer which is communicated with the electric air compressor through a first air supply pipeline, and a pressure switch is mounted on the air dryer; a protective valve which is communicated with the air dryer through a second air supply pipeline, and a three-way joint and a pressure sensor are arranged on the second air supply pipeline; a pressure switch which is used for feeding on-off signals of the pressure switch back to the vehicle control unit; a pressure sensor which is used for detecting the pressurevalue of the second air supply pipeline and feeding back to the vehicle control unit; and a whole vehicle controller which is used for controlling starting and stopping of the electric air compressoraccording to the on-off signal and the pressure value. According to the air brake energy supply pipeline system, the air using safety of the whole vehicle can be guaranteed, frequent starting and stopping of the electric air compressor are avoided, the service life of the electric air compressor is prolonged, and electromagnetic interference caused by frequent starting of the electric air compressor to other systems can be avoided.

The invention provides an intelligent vehicle gas safety control device and control method for 24-hour real-time car gas safety monitoring, gas leakage alarming and intelligent malfunction processing. According to the technical scheme, the intelligent vehicle gas safety control device consists of a gas concentration sensor module, a vehicle gas safety control module, a car electronic control unit gas safety monitoring and processing module and wiring harnesses for connecting the gas concentration sensor module, the vehicle gas safety control module and the car electronic control unit gas safety monitoring and processing module. By adopting the control device and the control method, the gas safety of a car can be monitored in real time all weather according to different concentration of the gas leakage, the gas leakage alarming and intelligent malfunction processing can be carried out in different areas and different stages, people inside the car can be reminded of checking the gas leakage by virtue of alarming and also can be reminded of taking effective measures to guarantee the gas safety, and safety accidents caused by the gas leakage can be effectively avoided.

The invention provides a solar-energy quick-transmission LIFI photon anti-theft alarm communication system, which comprises a wireless communication module, a user mobile phone end, a community public security end, an alarm receiving center end, a smoke detection system, a combustible gas detection system and an entrance guard system, wherein the user mobile phone end, the community public security end, the alarm receiving center end, the smoke detection system, the combustible gas detection system and the entrance guard system are in signal connection with a central control end through the wireless communication module. The entrance guard system comprises an entrance controller, an entrance guard, a storage database for storing user information, an electrical controller, an infrared camera and an identity identification system. The entrance controller is connected with an electronic lock through the entrance guard; and the entrance controller is also in wireless communication connection with the identity identification system, the storage database; the electrical controller and the infrared camera. The anti-theft alarm communication system is simple in structure, convenient to control and high in reliability, has a plurality of identity identification modes, greatly improves home safety performance and can effectively save electricity.

The invention relates to an output power adjusting device of an oil field well site associated gas grid-connected power generator unit. By means of the output power adjusting device, the output power of the grid-connected power generator unit and the output amount of an associated gas source are synchronously changed, the associated gas source can be thoroughly used, it is guaranteed that the associated gas source on a well site cannot be leaked, and the output power adjusting device is quite safe.

The invention discloses a gas leakage protection system and a gas leakage protection method. The gas leakage protection system comprises a gas meter and a cooker. The gas meter comprises a gas meter body. A control device, an electromagnetic stop valve and a wireless communication module are arranged in the gas meter body. The control device is in signal connection with the electromagnetic stop valve and the wireless communication module of the gas meter. The control device comprises a gas meter master control chip, a digital-to-analog conversion circuit, an electromagnetic stop valve controlcircuit, a comparison circuit and a time delay circuit. The cooker comprises a gas cooker body, and a cooker flameout protection circuit, a cooker wireless communication module and a cooker master control chip are arranged in the gas cooker body. The gas meter control device, the gas meter communication module, the electromagnetic stop valve, the cooker master control chip and the cooker communication module are connected with a power source. The gas leakage protection system is high in sensitivity and long in service life and has the beneficial effect that the fault self-inspection function is achieved; and the problems that in the prior art, a gas leakage alarm probe structure is not convenient to use, the use and replacing cost is high, and potential safety hazards are likely to be caused are solved.

The invention discloses a stainless steel corrugated pipe hybrid intelligent leakage detection method based on wireless sensor linkage, and belongs to the field of gas leakage detection. A pressure sensor and a flow sensor in a leakage detection box detect the gas pressure and flow signals in the pipeline in real time, the gas pressure, the flow signals and vibration signals detected by a vibration sensor are jointly transmitted to a CPU processor in the leakage detection box, and the CPU processor transmits signal characteristics to a data platform server through a communication module; and the data platform server comprehensively judges the pipeline state according to the extracted characteristics, when the characteristics are judged as gas leakage, an automatic pipeline valve is controlled through the CPU processor, and an alarm module is controlled to give an alarm. According to the method, the defect of insufficient safety of an indoor gas pipeline in the prior art is overcome, and the efficiency and the precision of gas leakage detection of the stainless steel corrugated pipeline system for the indoor gas are improved.

The invention discloses a stainless steel bellows pipeline system for indoor gas, and belongs to the field of gas pipelines. The stainless steel bellows pipeline system for the indoor gas provided bythe invention comprises a gas inlet pipe, an inlet master valve and a gas control box which are sequentially connected, the gas control box is in signal connection with a data platform server in a wired or wireless manner, and the data platform server is in signal connection with a processing terminal; after being connected with a gas meter, the gas control box is connected with a household pipeline requiring using gas by a connecting valve; the gas control box is connected with the gas meter and the gas meter is connected with the household pipeline requiring using gas by the bellows. The stainless steel bellows pipeline for the indoor gas provided by the invention overcomes the deficiencies of the safety and convenience of the indoor gas pipeline in the prior art, and through optimizingthe structure of the gas valve, the gas pipeline can be subjected to self-inspection in advance through the valve; then the safety of the gas pipeline system is ensured, and the using convenience is improved.

The invention provides a gas pipeline switch safety protection device and belongs to the field of machine manufacturing. The gas pipeline switch safety protection device consists of a gas detector, a controller, an electromagnetic switch, a motor, a pull cable, a pull cable installing hole, a gas pipeline switch knob, an electric conduction sheet and an electric conduction spring sheet. The gas pipeline switch safety protection device is reliable in motion, and easy to manufacture, install and use, can completely eradicate gas leakage accidents and enjoys a promising application prospect.

The invention provides a natural gas leakage remote alarm device which comprises a natural gas detector, a controller, an alarm apparatus and a communication unit. The natural gas detector is connected with the controller, and the controller is connected with the alarm apparatus and the communication unit. The natural gas leakage remote alarm device can detect whether natural gas is leaked or not in real time, gives an alarm in time when natural gas is leaked, informs a remote terminal to check, and ensures gas usage safety of users.

The invention discloses auxiliary equipment for a gas stove suitable for modern fast-paced life, and belongs to the technical field of kitchen supplies. The auxiliary equipment comprises a first connecting cylinder, wherein the front end surface of the first connecting cylinder is fixedly connected with a first inner rod, the surface of the first inner rod is sleeved with a first outer sleeve, oneend, far away from the first connecting cylinder, of the first outer sleeve is fixedly connected with a rear seat, and one surface, close to the first connecting cylinder, of the rear seat is fixedlyconnected with a fixed clamping plate. According to the auxiliary equipment, a clamping plate, a torsion spring, a motor, a timer, a micro controller, a movable clamping plate, the fixed clamping plate, the first inner rod, the first outer sleeve, a second inner rod and a second outer sleeve are designed to be matched with one another, so that an accurate and reliable automatic flameout protection function can be achieved, the auxiliary equipment can be adapted to common gas stoves used in most household kitchens at the present stage, the undesirable phenomena such as dry burning can be avoided, the safety of gas use is guaranteed, and the auxiliary equipment can be effectively adapted to the modern fast-paced life.

The invention discloses an overflow cut-off valve. The overflow cut-off valve comprises a valve body and a cut-off component and is characterized in that the valve body comprises a gas inlet flange, aretainer detachably connected with the gas inlet flange and a gas outlet support rack detachably connected with the retainer, the cut-off component is mounted in the valve body and comprises a release spring, a steel ball, a valve element and a reset spring, the valve element comprises a guide upper plug, a valve clack and a guide lower plug which are sequentially connected, the reset spring sleeves the guide lower plug, one end of the reset spring is abutted against the valve clack, the other end of the reset spring is abutted against the gas outlet support rack, one side, away from the retainer, of the gas inlet flange is provided with a spring hole for placing the release spring and the steel ball, the steel ball is arranged at one end, close to the valve element, of the release spring, and the release spring pushes the steel ball against the surface of guide upper plug. By the cut-off component, the cut-off valve can be automatically closed during overcurrent, the cut-off valve ismanually recovered when the flow is normal, and gas use safety is guaranteed.