49results about How to "Guaranteed gas supply" patented technology

A transfer speed transmission conveyor device for a flexible material comprises a rack, a spindle rotationally arranged on the rack, a motor connected with and driving the spindle to rotate, a rotary frame fixedly arranged on the spindle, a plane cam fixedly arranged on the rack, a cylinder cam fixedly arranged on the rack, a plurality of adsorption transfer mechanisms circumferentially respectively arranged on the rotary frame, and a rotary negative pressure mechanism connected with each group of adsorption transfer mechanism by a hose. Each adsorption transfer mechanism comprises a rotary drum rotationally arranged on the rotary frame, a swing arm connected between the rotary drum and the cylinder cam for driving the rotary drum to rotate, a lifting rod only movably sleeved in the rotary drum along the axial direction of the rotary drum, a negative pressure adsorption block arranged on the lifting rod, an air supplying lantern ring rotationally sleeving the neck part of the negative pressure adsorption block, a linear guide rail fixedly arranged on the air supplying lantern ring and radially extending along the spindle, a cam bearing arranged on the linear guide rail to be matched with a trail slot of the plane cam and a guide slider arranged on the rotary frame to be glidingly matched with the linear guide rail. The transfer speed transmission conveyor device for the flexible material has the advantages of simple structure, stable action, low cost and the like.

A fuel cell automobile energy-saving air supply system belongs to the energy-saving technical field of automobiles. A hydrogen pressure sensor of that system is arrange on the pipeline between the decompression solenoid valve and the multi-purpose compressor, and an air pressure sensor is arranged on the pipeline where the multi-purpose compressor discharge compressed air; When the hydrogen pressure passing through the relief solenoid valve is insufficient to propel the multi-purpose compressor to work, or when the air outlet pressure sensor detects that the air outlet pressure is lower than the air pressure set by the PLC controller, the control system starts the multi-purpose compressor power supply system, drives the multi-purpose compressor with electric energy, compresses hydrogen andair at the same time, and ensures the gas supply of the fuel cell stack. The system is simple in structure, small in occupying space and easy to be integrated. By using the pressure energy of the high pressure hydrogen cylinder, the air compression device is pushed to pressurize the atmospheric air so as to use air in the hydrogen fuel cell stack, and the pressure energy of the hydrogen is directly converted into the pressure energy of the air, which greatly improves the energy utilization rate.

The present invention relates to the technical field of LNG gas filling station gas filling, particularly to an LNG skid-mounted filling station filling process, wherein the process technology of the LNG skid-mounted filling station is divided into four parts such as the unloading process, the pressure adjusting process, the filling processes and the pressure relief process. According to the present invention, with the technical route, the low temperature pump is completely utilized to perform unloading, pressure adjusting and gas filling, such that the equipment configuration of the gas filling station is substantially reduced, the process pipeline is shortened, the route is the basis for achieving the skidding, the good economic benefits are achieved, and the good use value is provided.

The invention discloses an air pressure braking system of a heavy truck, and mainly relates to the field of air pressure braking of a truck. Including air compressor, main brake system, auxiliary brake system, the main brake system includes front axle brake system, rear axle brake system, parking brake system, it is characterized in that it also includes air processing unit APU, air The processing unit APU is used to distribute the gas generated by the air compressor to the main brake system and the auxiliary brake system respectively. The front axle brake system is equipped with a front axle air storage chamber, and the parking brake system is equipped with a parking storage chamber. The air chamber, the front axle air storage chamber and the parking air storage chamber together form a double-cavity air storage tank, the rear axle braking system is equipped with a rear axle air storage tank, the auxiliary braking system is equipped with multiple three-way pipes, and the air handling unit The APU is respectively connected with the dual-chamber air storage tank, the rear axle air storage tank and the tee pipe. The beneficial effect of the invention is that it can greatly reduce the weight and cost of the car and improve the loading capacity of the truck under the premise of ensuring the braking performance.

The invention relates to a gas roots type flow meter with functions of alarm and bypass. The flow meter comprises a differential pressure base, a signal trigger mechanism and a flow meter body, wherein two ends of a cut-through channel are respectively provided with a waist wheel, the differential pressure base is communicated with an air inlet end through a conduit, the differential pressure base is internally provided with an elastic leather membrane, the differential pressure base is connected with a universal driving shaft fixed with the leather membrane, the universal driving shaft is hinged with an elastic pinch plate of which one end is provided with a hook angle, the cut-through channel is internally provided with a valve seat, a valve rod is arranged on the valve seat, a restoring spring is connected between the valve rod and the valve seat, a valve clack is fixedly arranged on the valve rod, the valve clack is connected with a hook angle of the elastic pinch plate in a clamping way, the signal trigger mechanism comprises a magnetic steel support column, and the magnetic steel support column leans against one end of the valve rod which is far away from the valve clack. The gas roots type flow meter has the benefit effects that 1. after the flow meter has fault, a bypass device starts, and gas directly passes through the cut-through channel, so that the gas supply of upstream gas equipment can be guaranteed within a short time; and 2. the valve rod is separated from the magnetic steel support column, so that the signal trigger mechanism transmits a signal so as to promote workers to maintain the flow meter.

The invention relates to the field of fire-fighting breathing equipment, and discloses a positive-pressure air respirator for fire-fighting. The chamber and the low-pressure chamber are connected through a ventilation groove, and an introduction groove communicated with the high-pressure chamber is opened on the body of the pressure reducer. The positive pressure air respirator for fire fighting is designed through the structural design of the positioning bobbin and the elastic rubber membrane in the low-pressure chamber, and makes the positioning bobbin connected to the pressure regulating tube on the side of the high-pressure chamber. When the oxygen cylinder is placed vertically in the high-pressure chamber Oxygen pressure is unstable, and high-pressure oxygen flows into the positioning barrel, causing the elastic rubber film to bounce downwards, and drive the valve stem and valve core to move down, so that the pressure in the low-pressure chamber is reduced and the state of balance is restored. When the oxygen in the high-pressure chamber increases, exhaust and pressure relief is performed, which causes the problem of oxygen waste and prolongs the service life of the air respirator.

The invention discloses a burner and a gas cooking appliance. The burner comprises a bottom cup, a flamer and a nozzle holder. The flamer is arranged on the bottom cup. The nozzle holder is installedon the side edge of the bottom cup and is further provided with a first gas inlet channel and a second gas inlet channel. A gas outlet of the first gas inlet channel is provided with a first nozzle. Agas outlet of the second gas inlet channel is connected with an inner ring gas inlet pipe. A gas outlet of the inner ring gas inlet pipe is provided with a second nozzle. The material of the inner ring gas inlet pipe is different from that of the bottom cup. The flamer comprises an outer ring cavity and an inner ring cavity. The outer ring cavity surrounds the inner ring cavity. The bottom cup isprovided with a first ejection channel, and the first nozzle is opposite to the first ejection channel. The outer ring cavity is provided with an outer gas mixing cavity. Mixed gas of the outer gas mixing cavity is supplied by the first ejection channel. The inner ring cavity is provided with an inner gas mixing cavity and a second ejection channel, and the second ejection channel is opposite tothe second nozzle. Mixed gas of the inner gas mixing cavity is supplied by the second ejection channel.

The invention discloses a biogas pool with a temperature increase and retention function. The biogas pool comprises a pool body, a stirring shaft, a heat retention sleeve, a temperature sensor and a heating coil; an air duct, a motor and a feeding channel are sequentially arranged at the upper end of the pool body; a filter layer is arranged at the bottommost end of the air duct, and the air duct is further provided with an exhaust fan; the motor is connected with the stirring shaft in a driving manner, the stirring shaft is arranged in the pool body, and a stirring paddle is arranged on the stirring shaft; the heat retention sleeve is arranged in the pool body, an unfreezing sleeve is further arranged outside the heat retention sleeve, and the hot-water inlet of the unfreezing sleeve is located on the upper right side of the pool body; the temperature sensor is further arranged on the right inner side of the pool body and is electrically connected with a temperature alarm arranged outside the pool body, and a display screen used for displaying the temperature is arranged on the temperature alarm. By the arrangement, insufficient reaction is avoided, normal gas supply is guaranteed, leakage is prevented, integral strength is enhanced, service life is prolonged, temperature control effect is good, temperature adjusting speed is high and efficient, and the biogas pool is environment friendly and free of pollution.