40results about How to "Realize gas supply" patented technology

The invention relates to an electromechanical ACBS (Anti-lock Central Braking System) retarder control device and its control method, which mainly includes air circuit control and electronic control, and the air circuit is equipped with a PCV regulating valve (16) on the original air brake circuit. The normally closed solenoid valve (19) acts as a control valve to control the air pressure of the retarder air chamber, and uses the parking air reservoir to complete the retarder air supply without affecting the original braking performance of the vehicle. The retarder is cooled by circulating cooling water, and the cooling water is recycled by the electric water pump (25). The central retarder control system can judge the driver's operation, prevent misoperation, and realize the real-time monitoring of speed, temperature and pressure, retarder brake anti-lock, CAN bus communication, display and alarm and other functions. The control of the PCV regulating valve (16) and the normally closed solenoid valve (19) is realized through the high-power drive module, and the ECU of the control circuit adopts ISP programming method, power management, hardware watchdog and other methods to ensure better stability of the controller sex.

The invention relates to an updip entrance double-layer tubular slug flow catcher, and relates to a slug flow catcher, aiming to solve the problems of large floor space, large liquid carrying amount in gas, no gas phase fog catching function and unable catchment of large volume liquid stopper of a multi-branch pipe catcher at an entrance of a separator for the existing single layer finger-type tubular slug flow catcher. Two upper-layer pipe sections and two lower-layer pipe sections are all horizontally arranged in parallel; the head end of each upper-layer pipe section is communicated with the tail end of an updip pipe section; the head end of the updip pipe section is communicated with an inlet pipe; the tail end of each upper-layer pipe section is communicated with the tail part of each lower-layer pipe section; the tail end of each lower layer pipe section is communicated with a liquid collecting pipe; two gas collecting pipes are horizontally arranged in parallel; the head end of the gas collecting pipe is communicated with the tail of the updip pipe section; the tail end of the gas collecting pipe is communicated with a bidirectional inlet fog catching device; the gas collecting pipe is communicated with the upper pipe section through a gas guide pipe; the upper-layer pipe sections are communicated with the lower-layer pipe sections through communicating pipes; the updip pipe section is communicated with the lower-layer pipe section through a downspout; and the bidirectional inlet fog catching device is communicated with the tail of each upper-layer pipe section through a liquid discharge pipe. The slug flow catcher provided by the invention is used for oil gas treatment of oil gas fieldsurface engineering.

The invention discloses a method for preparing a pyrolytic boron nitride material. The method comprises the following steps: putting a substrate mold in an air-carrying atmosphere carrying borazine vapor under a vacuum condition, and pyrolyzing borazine which constantly deposits on the depositing surface of the substrate mold by adopting a chemical vapor deposition method to form the pyrolytic boron nitride material. The preparation method of the pyrolytic boron nitride material has the advantages of simple and easily controlled process, low cost, low energy consumption, high yield, environmental friendliness and the like.

The invention relates to the technical field of file management equipment, and particularly discloses a file binding device which comprises a working plate, wherein a baffle is fixed on one side of the working plate; a punching machine is fixed on the top of the baffle; the punching machine comprises punching nails which slide up and down; an opening for putting files is formed between the punching machine and the working plate; a hole groove located right below the punching nails is formed in the working plate; a plurality of adsorption holes evenly distributed along the hole groove are formed in the working plate; an air flow channel is arranged in the working plate; the air flow channel comprises a necking section; and each adsorption hole communicates with the necking section and is provided with a first air inlet check valve and an air flow unit for supplying air into the air flow channel. With adoption of the technical scheme, the device solves the problem in the prior art that an operator is at risk of injury by manually pressing paper near the punching nails.

The invention belongs to the field of aero-engine double-duct spray pipes, and particularly relates to a thrust measuring structure of a double-duct spray pipe with sealing gas. The structure comprises an inner duct pressure stabilizing cavity (3), an inner duct air inlet pipe (2), an inner duct sealing air pressure stabilizing cabin (11), an outer duct pressure stabilizing cavity (6), an outer duct air inlet pipe (4), an outer duct sealing air pressure stabilizing cabin (12), a double-duct spray pipe test piece (10) and a thrust measuring balance (7). According to the thrust measurement structure of the double-duct spray pipe with the sealing gas, the inner duct and the outer duct simultaneously, horizontally and symmetrically feed gas, and a non-contact sealing and sealing gas structure is adopted, so that thrust and flow can be accurately measured, and interference of gas feeding in thrust measurement can be eliminated at the same time; influence of the structure on thrust measurement is smaller, and the interference caused by the structure can be quantitatively calculated; coaxial air supply of a double-duct spray pipe test piece can be realized, secondary switching is reduced, a straight pipe section is longer, and air flow pressure stabilization and rectification are facilitated; and the structure is compact and efficient, the thrust measuring platform is convenient to arrange, and the test efficiency is improved.

The invention provides a special test device and method for hydrogen fuel cell system fuel cell stack offline, and the device comprises a gas supply and exhaust auxiliary system, a heat dissipation system, a power supply, an electronic load, a PXI control system, and an upper computer. The air supply and exhaust auxiliary system is composed of a humidity sensor, a humidity control device, a filter, a pressure reducer, a hydrogen mass flow meter, an air guide pipe and a mechanical safety valve, the humidity control device is externally connected to the air guide pipe through a three-way valve,and the humidity control device is composed of an air inlet, a condensation device, an evaporation device and an air outlet; the air inlet is connected with the air guide pipe through the three-way valve and is connected with air inlet ends of the condensing device and the evaporating device through an electric control three-way valve; and the air outlet ends of the condensing device and the evaporating device are connected with the air guide pipe and the electronic load, and the PXI control system is externally connected with the exhaust auxiliary system and the heat dissipation system for control. According to the invention, the gas supply, flow, temperature and pressure control and hydrogen humidity adjustment of an offline fuel cell stack are realized, so that a cell is kept in an optimal working state.

The invention relates to a lever valve. The lever valve comprises a valve body (20) with a valve cavity. An input port (22), an output port (23) and an exhaust port (24) are communicated through the valve cavity, and a valve element is arranged in the valve cavity. The valve element comprises a push rod (14), a valve seat (15), a thread insert (12) and a valve vulcanization component (16). A lever support (11) is fixed at the top end of the valve body (20) and fixedly hinged to one end of a lever (10) through a cylindrical pin (21), and the other end of the lever (10) is hinged to a rotation wheel (3) through a cylindrical pin (4). The lever (10) is in slide contact with the lever (10) of the valve element. A quick-action switch is mounted on the valve body and can output corresponding electric signals according to the state of the lever, so that the working state of the valve can be known conveniently; the motion of the valve element is stable.

The invention discloses a gas leveling device for improving an etching process. The device comprises a gas inlet pipe and a gas leveling ring, wherein the gas inlet pipe and the gas leveling ring are made of hollow pipes and communicated with each other, the connection portion of the gas inlet pipe and the gas leveling ring is sealed, and the surface of a plane of the gas leveling ring is provided with gas holes. By the aid of the device, reacting gas is transported to a position which is close to a sampling platform directly and accurately, the dirt of the acting gas for a cavity is reduced, the gas is distributed on the surface of an etched article evenly, and the etching has good uniformity.

The present invention provides a gaseous fuel supplying method and device which provides power for the flow of gas by utilizing a vacuum (negative pressure) generated in an intake manifold (or an intake pipe on an internal combustion engine without an intake manifold) during operation of an internal combustion engine by reasonably controlling the opening of a suction control valve so that the mixing ratio of gas and air reaches a value required by normal operation of the internal combustion engine. The device for supplying gas by the gas supplying method physically includes six basic parts: azero pressure valve, a suction control valve, an air metering sensor, an air-fuel ratio sensor and a control unit (ECU).

The invention discloses an anti-icing structure of a sluicing slope for water conservancy facilities, and belongs to the technical field of water conservancy facilities. According to the technical keypoints, the anti-icing structure comprises a water storage wall, a sluicing gate arranged on the water storage wall and the sluicing slope arranged on one side of the water outlet end of the sluicinggate; a sluicing table is arranged between the sluicing slope and the sluicing gate, and a closure water tank is formed in the sluicing table; an air jetting tank is arranged in the closure water tank, and the two ends of the air jetting tank are connected with air delivering pipes correspondingly; a plurality of vent holes are distributed in the side wall of the air jetting tank, and the vent holes face toward the bottom of the closure water tank and the water outlet side of the sluicing gate; and a cantilever is arranged on the water storage wall, supporting plates are hinged to the two ends of the air jetting tank, and the free ends of the supporting plates are hinged to the cantilever. The anti-icing structure of the sluicing slope for the water conservancy facilities is compact in structure, low in using energy consumption and good in effect and is used for preventing the water conservancy facilities from icing.

The invention relates to a circulating ventilation system of a silica sand water storage and purification tank, belongs to the technical field of environmental engineering, and provides the following technical scheme for solving the problem that purification treatment of sewage is not facilitated, the circulating ventilation system of the silica sand water storage and purification tank is technically characterized by comprising a tank body, impermeable layers are laid on the bottom wall and the side wall of the tank body, and a water storage well and a water purification well are arranged in the tank body; the water storage well and the water purification well are both defined by silica sand water filtering walls, the water purification well is communicated with a water inlet pipe, and the water storage well is communicated with a water outlet pipe. A desilting channel is further arranged in the tank body, the desilting channel is communicated with the water purification well, and the desilting channel is provided with a sludge discharge pipe; an air inlet pipe is arranged in the tank body, the two ends of the air inlet pipe extend out of the tank body, an air channel capable of supplying air to the air inlet pipe is arranged outside the tank body, and a plurality of air outlet holes are formed in the air inlet pipe located in the tank body. The circulating ventilation system has the advantages of increasing the content of dissolved oxygen in sewage and improving the sewage filtering effect.

The invention discloses a novel lifting cylinder. The novel lifting cylinder comprises a cylinder body (2) with a first inner cavity (1), a piston (4) which is arranged inside the cylinder body (2) and can slide along the inner wall of the cylinder body (2), and a base (6) which is connected to the first end of the cylinder body (2) and can input gas to the cylinder body (2). The piston (4) is further fixedly connected with a piston rod (8) which penetrates through the second end of the cylinder body (2). The piston rod (8) is connected with the second end of the cylinder body (2) in a dynamic sealing mode. The novel lifting cylinder achieves fast gas advance and retreat, and can provide larger energy, hoist the height and increase the frequency for an impact test stand when being applied to the field of impact and collision tests.

The invention provides a mechanical continuous threshing device for agricultural harvesting, and relates to the technical field of threshing devices, the mechanical continuous threshing device comprises a shell, a threshing part, a screening part, a driving part and a cleaning part; two fixed seats are symmetrically welded on the shell; the two fixing seats are each of a rectangular plate-shaped structure, and two fixing bolts are connected to each fixing seat in an inserted mode. Four elastic telescopic rods A are mounted on the bottom end face of the top plate, and a mounting seat is mounted at the head ends of the four elastic telescopic rods A; the mounting seat is of a concave structure, and stop levers are welded on the mounting seat in a linear array shape; the blocking rod is of a cylindrical rod-shaped structure, protrusions A are welded to the blocking rod in a linear array shape, and the protrusions A form a retarding structure when the sunflowers move, so that the threshing effect is improved, and the problems that firstly, the sunflowers move fast during threshing, the threshing effect is not obvious enough, and repeated threshing needs to be conducted are solved; and secondly, the problem that residues are doped in the seeds during threshing is solved.

The invention discloses isolation goggles. The isolation goggles comprise a pair of eye socket rings (1), a pair of soft goggle bodies (2) capable of being attached to eye sockets of a human body anda head band (3), a through hole is formed in each eye socket ring (1), a lens (4) is arranged at the outer end of the through hole, and the two goggle bodies (2) are each installed at the inner end ofthe through hole of the corresponding eye socket ring (1); and each eye socket ring (1), each goggle body (2) and each lens (4) form a closed inner cavity with the eye sockets after the goggles are worn on the eyes of the human body. The inner cavity is characterized in that: an air inlet pipe communicates with the interior of each inner cavity, the air outlet end of the air inlet pipe communicates with the corresponding inner cavity, and the air pressure of the inner cavity is larger than the air pressure outside the goggles in a ventilation state. According to the goggles, the air pressureinside the goggles is increased, so that an air pressure difference exists inside and outside the goggles, external air cannot enter the goggles, and eyes can be truly protected.

The invention provides a cable tube waterproof plugging device which comprises a first pressing plate, a second pressing plate and a connecting piece, the first pressing plate and the second pressing plate are spliced to form a cable plugging tube, a hinge piece is arranged between a first contact surface and a third contact surface, a first connecting surface is arranged on the first pressing plate, and a second connecting surface is arranged on the second pressing plate. The first connecting face is perpendicular to the first contact face and the second contact face, second connecting faces are arranged on the two sides of the second pressing plate, the two ends of the connecting piece are fixed to the first connecting face and the second connecting faces respectively, and the connecting piece and the hinge piece are arranged at the two ends of the first pressing plate respectively. At least one first mounting groove is formed in the first pressing plate in a penetrating mode, at least one second mounting groove is correspondingly formed in the second pressing plate in a penetrating mode, the first mounting groove and the corresponding second mounting groove are spliced to form a cable plugging hole, and the cable plugging hole is formed in the length direction of the cable plugging pipe.

The invention provides an electric starting fusing type quick release valve. The electric starting fusing type quick release valve comprises a valve body main part, a bottle opening device, an inflation valve, a valve element, an output connector and a throttling hole. The valve element arranged on the valve body main part is of a step type piston structure, the inside of a shell is divided into acavity A located in the right end of a valve element step and a cavity B located in the left end of the valve element step, and an output connector channel is closed through the piston end. The throttling hole formed in the valve element forms an airflow channel for the cavity A and the cavity B, and the pressure of the cavity A and the pressure of the cavity B are balanced. The bottle opening device comprises a fusible plug and an electric connector and is electrically connected with the fusible plug through the electric connector, direct current is conveyed to the fusible plug to reach setfusing energy, and after the fusible plug is loosened, the cavity B forms a deflation channel. The valve element is pushed from the end, with the large pressure, of the cavity A to move towards the end, with the small pressure, of the cavity B, the output connector is opened, and gas in a gas bottle connected with the inflation valve outputs a gas source to a device to be inflated to achieve gas supply. High popularization value is achieved.

The biomass fuel combustion furnace facilitating sufficient combustion comprises a combustion furnace body and an air pump, the feeding end of the combustion furnace body is connected with a pressure storage pipe in a penetrating mode, the left end of the pressure storage pipe is fixedly connected with a butt joint pipe, and the left end of the butt joint pipe is fixedly connected to the output end of the air pump; a pressurizing mechanism is fixedly connected to the left end of the pressure storage pipe, a guide mechanism is fixedly connected to the right end of the pressure storage pipe, compressed air is introduced into the inner side of the guide pipe through the air pump and the pressurizing mechanism, and when the compressed air pushes a piston, a connecting rod and an isolation hood to move on one side of the feeding end of the combustion furnace body, the piston is compressed; when the air leakage hole communicates with the guide hole, compressed air is sprayed out of the guide pipe through the air leakage hole and the guide hole, the stacked biomass fuel is blown away, the contact area of the biomass fuel and air on the inner side of the combustion furnace body is increased, and the combustion efficiency is improved. The combustion efficiency of the device is improved.