48results about How to "Guaranteed gas supply" patented technology

The invention provides a burner module and a gas stove. The burner module comprises a burner, an outer burner cap and a gas distributing disc, wherein the burner is of an integral structure formed by aluminum alloy through pressure casting, the outer burner cap is located at the upper portion of the burner and connected with the gas outlet end of the burner, and the gas distributing disc is located between the burner and the outer burner cap. The burner is of the integral structure formed by the aluminum alloy through pressure casting, so that the manufactured burner is free of splicing, seamless, good in sealing performance, simple in processing and low in cost. In addition, due to the fact that an aluminum alloy material is light, the manufactured burner is light in weight, and an aluminum alloy pressure casting process is relatively little in environmental pollution.

The invention discloses a portable engineering surveying and mapping device for geological mineral exploration. The device comprises a fixed disc and a base, the center of the top of the fixed disc is in bolting connection with a rotating shaft through a bearing, the top of the rotating shaft is in bolting connection with a placement rack, and an inner cavity of the placement rack is provided with a rapid dismounting mechanism. And a surveying instrument is clamped to the inner side of the rapid dismounting mechanism, and a storage cylinder is bolted to the bottom of the fixed disc. Through cooperation of the fixed clamping base, the clamping groove, the sliding rod, a handle, a limiting spring, a movable clamping base and a clamping block, a user can conveniently and rapidly disassemble the surveying instrument, the surveying instrument disassembling time of the user is shortened, and the surveying instrument has an auxiliary portable effect on the user; through cooperation of a sliding column, a sliding sleeve, a threaded cylinder, a small servo motor, a driving gear, a driven gear and a lead screw, the lifting column and the base can be stored and reset, the overall length of the storage cylinder is shortened, and a user can conveniently carry the shortened storage cylinder.

The invention discloses an uninterrupted gas supply device which comprises a first gas delivery manifold, a first pneumatic valve, a second gas delivery manifold and a second pneumatic valve. One endof the first gas delivery manifold is communicated with a main gas supply source while the other end of the same is communicated with a gas output pipeline or a gas output port, the first pneumatic valve is arranged on the first gas delivery manifold and is a normally-closed valve, one end of the second gas delivery manifold is communicated with a standby gas source while the other end of the sameis communicated with the gas output pipeline or the gas output port, and the second pneumatic valve is arranged on the second gas delivery manifold and is a normally-open valve. The main gas supply source and the standby gas source are serially connected to be switched mutually in a full-automatic manner within 0.5-1s, so that continuous gas use of gas using units is ensured.

The invention discloses a connection method and device of a compressed-air vehicle engine as well as a two-process boxer engine by optimizing a method and device for reducing energy consumption of vehicles. Due to the scientific connection method in combination with components with relevant functions, various technical effects of the entire compressed-air vehicle engine are obtained as follows: large-capacity storage battery is not needed, the fuel resources are widely available, sufficient combustion can be realized in ultra-rare air, the energy-saving and environment-protection function is enhanced, the output torque is large, a water cooling system is canceled, frequent air leakage is avoided, air supply is guaranteed, the safety performance is high, electronic air distribution and electronic gear shift are realized, the engine is easy to start, light and durable and has a simple structure, the problem of short continuation is avoided, and the like so that the compressed-air vehicle engine approaches to an ideal state and is more outstanding in reducing energy consumption of vehicles.

The invention relates to cable chain belt type digging carrying ventilating massage sending combination mining machine. Its main equipment is concave slice link line linearity. Its cross section is far less than common digging machine. The freight volume with 4km/h slow speed can exceed megaton per year. The supporting is also used as main air supplying pipeline or pouring water to prevent fire and the drainage machine is saved. The steel chains could also use to uncut communication channel or constant speed transferring power, or used as track to prevent tank do harm to the road.

The invention discloses an on-line detection method for the flow characteristic drift amount of a fuel gas nozzle. According to the on-line detection method for the flow characteristic drift amount of the fuel gas nozzle, on the premise that parts and the cost are not increased, a warn that the flow characteristic drift amount of the fuel gas nozzle is too large is given for a user of a natural gas engine so that the safety of the using process of the engine can be ensured; the flow characteristic drift amount of the fuel gas nozzle is detected so that the user of the engine can be assisted to eliminate the fault causes; the user of the engine can be timely reminded to check and replace parts of a fuel gas supply system so that the controllability of fuel gas supply can be ensured, and the use safety of fuel gas can be ensured; and meanwhile, the detection method is executed in the engine deceleration and fuel cut-off processes so that normal operation and use of the engine cannot be influenced. The detection method has the advantages of being simple and effective.

The invention discloses a distributing head on a vehicle-mounted bottle, being capable of increasing liquid inlet speed and ensuring the stable work of an engine and comprising a distributing head body. The lateral of one side of the distributing head body is provided with a tee fitting comprising an air inlet, a liquid inlet and an air and liquid delivery outlet, wherein the liquid inlet is provided with a check valve for preventing backflow. In the invention, the liquid inlet speed obtains reliable guarantee after the check valve is shifted into the distributing head, thereby ensuring the liquid supply amount for a vaporizer, also ensuring the air supply amount of the vaporizer for the engine and enabling the engine to stably and reliably work.

The invention discloses an air pressure braking system of a heavy-duty truck, and mainly relates to the field of truck air pressure braking. The system comprises an air compressor, a main braking system and an auxiliary braking system; the main braking system comprises a front axle braking system, a rear axle braking system and a parking braking system. The system is characterized in that the system comprises an air processing unit APU, and the air processing unit APU is used for distributing air generated by the air compressor to the main braking system and the auxiliary braking system; a front axle air storage cavity is formed in the front axle braking system, a parking air storage cavity is formed in the parking braking system, the front axle air storage cavity and the parking air storage cavity jointly form a double-cavity air storage cylinder, a rear axle air storage cylinder is arranged in the rear axle braking system, and a plurality of three-way pipes are arranged in the auxiliary braking system; and the air processing unit APU is connected with the double-cavity air cylinder, the rear axle air cylinder and the three-way pipe. The invention has the beneficial effects that on the premise of ensuring the braking performance, the weight and the cost of an automobile can be greatly reduced, and the loading capacity of a truck is improved.

The invention relates to a hand-operated time-delay electromagnetic valve and piezoelectric ignition combined gas cooker, which is free from a power supply and can automatically prolong the ignition time by manually pressing and opening the gas gate of an electromagnetic valve; as no battery is used, the coil of the electromagnetic valve cannot be burnt out, and the failure rate is very low; an extinguishing protection function is achieved, that is, the gas gate can be closed automatically if fire is extinguished by wind or boiling and spilling water, so that no fuel gas escapes to cause safety accidents; a timing gas turn-off function is achieved, that is, the electromagnetic valve can automatically close the gas gate when the set gas turn-off time is up, so that a user doesn't need to be careful of remembering to turn off gas to prevent food from being burnt; the gas cooker is an environment-friendly gas cooker product which is simple in structure and low in cost, is generally suitable to being used as a cooker of liquefied gas, coal gas, natural gas, marsh gas or the like, and is a practical gas cooker product for families and the catering industry.

The invention relates to the field of fire fighting breathing equipment, and discloses a positive pressure type air respirator for fire fighting. The positive pressure type air respirator comprises apressure reducer body, wherein a high-pressure chamber, a ventilation groove and a low-pressure chamber are formed in the pressure reducer body, the high-pressure chamber and the low-pressure chamberare communicated through the ventilation groove, and a guide-in groove communicated with the high-pressure chamber is formed in the pressure reducer body. According to the positive pressure type air respirator for fire fighting, through the structural design of a positioning cylinder pipe and an elastic rubber film in the low-pressure chamber, the positioning cylinder pipe communicates with a pressure adjusting pipe on one side of the high-pressure chamber, when the oxygen pressure intensity of an oxygen bottle in the vertical high-pressure chamber is not stable, high-pressure oxygen flows into the positioning cylinder pipe, the elastic rubber film is bounced downwards, a valve rod and a valve element are driven to move downwards, the pressure intensity in the low-pressure chamber is reduced, the balance state is recovered, and therefore the problem that when oxygen in the high-pressure chamber is increased, exhausting and pressure relief are carried out, and oxygen waste is caused issolved, and the service life of the air respirator is prolonged.

The invention relates to the technical field of non-woven fabric cleaning equipment, and discloses a hairbrush drag reduction device for non-woven fabric cleaning. The hairbrush drag reduction devicecomprises a cleaning box; a first cleaning roller comprises a first rotating rod, a first helical gear and through holes; a spring is arranged in the first cleaning roller; a soft magnetic strip is connected with the outer side end of the spring; an elastic layer is connected with the outer side of the soft magnetic strip; bristles penetrating through the through holes are connected to the outer side of the elastic layer, and an arc magnet corresponding to the soft magnetic strip is arranged at the upper end of a fixed base. The arc-shaped magnet corresponding to the soft magnetic strip is arranged at the upper end of the fixed seat, and the magnetic pole magnetism of the arc-shaped magnet is the same as the magnetic pole direction of the soft magnetic strip on the opposite side, so that it is guaranteed that the arc-shaped magnet extrudes the soft magnetic strip to move upwards, and the soft magnetic strip drives the bristles to shrink into the first cleaning roller through the elastic layer; by means of the structure, resistance of the bristles to water is reduced, and therefore the problems that an existing non-woven fabric cleaning device is large in rotation resistance of theroller and wastes redundant electric power are solved.

The invention relates to the technical field of fans, and discloses a high-efficiency gas supply device for a gas boiler. The high-efficiency gas supply device comprises a casing, an accelerating assembly and a cleaning assembly, wherein an accelerating cavity and a containing cavity are formed in the casing; the accelerating cavity communicates with the containing cavity; the accelerating assembly is rotationally arranged in the accelerating cavity; the cleaning assembly is movably arranged between the accelerating cavity and the containing cavity; and an air inlet, a first air outlet and a second air outlet communicating with the accelerating cavity are further formed in the casing, wherein valves are arranged in the first air outlet and the second air outlet respectively. When the device is in a shutdown cleaning state, the first air outlet is closed, the second air outlet is opened, the cleaning assembly moves from the containing cavity into the accelerating cavity, and the cleaning assembly cleans the accelerating assembly; and when the device is in a pollution discharge state, the first air outlet is closed, the second air outlet is opened, the cleaning assembly moves into the containing cavity again, and the accelerating assembly sends residual accumulated ash in the accelerating cavity out of the second air outlet through air flow, so that the purpose of quick ash removing is achieved.

The invention provides an emergency gas supply system for a high-purity ammonia tank car. The system comprises a gas supply tank car and a spare tank car; a first heater, a first water tank as well asa first spiral heating coil water outlet pipe and a first spiral heating coil water inlet pipe which are located inside the gas supply tank car are arranged on the gas supply tank car; a second heater, a second water tank as well as a second spiral heating coil water outlet pipe and a second spiral heating coil water inlet pipe which are located inside the spare tank car are arranged on the sparetank car; the first heating coil water inlet pipe communicates with the second heater through a water inlet pipeline; and the first heating coil water outlet pipe communicates with the second heaterthrough a water outlet pipeline. In case of emergencies such as failure of the first heater and the like, the second heater of the spare tank car is directly switched and used for heating the gas supply tank car, normal gas supply is guaranteed, the switching process is simple and stable during actual operation, and normal gas supply is not affected.