37results about How to "Adjustable rate" patented technology

The invention discloses a micro negative pressure biomass gasifying furnace with the adjustable feeding amount. A gas inlet amount and biomass feeding amount gas-solid feed linkage device is used for adjusting the speed of the gasifying furnace so as to solve the problems that the biomass feeding amount of a current gasifying furnace is limited, and the combustion degree can not be controlled. The gasifying furnace comprises a stove, a centrifugal fan, a gasifying furnace body, a feeding tank, a positive pressure material cutting-off valve, a biomass feeding pipe, a contactor vacuum meter, a combustor, the gas-solid feed linkage device, partition plates, a negative pressure control valve and a six-way valve. An electric contact combined pressure and vacuum gauge and a bypass magnetic valve are in linkage to achieve constant micro negative pressure, and therefore the gasifying furnace improves the combustibility of fuel while ensuring that fuel gas is not leaked; by means of the gas inlet amount and biomass feeding amount gas-solid feed linkage device, the speed of the gasifying furnace can be adjusted; meanwhile, biomass can be fed continuously; by means of the six-way valve, the phenomena that ignition is not proper to carry out under the negative pressure and the fuel gas leaks can be avoided, the use rate of the fuel is increased, energy is saved, and emission is reduced.

The invention relates to a device and method for producing a truth random number; the device comprises a single photon random pulse source, a clock unit, a random bit extracting module based on an FPGA (field programmable gate array) and a computer; the random bit extracting module based on the FPGA comprises a controller, a counter, a multi-bit FIFO (first in first out) memory, a buffer unit, a comparator, 1-bit FIFO memory and a communication interface control module; the buffer unit comprises a first register and a second register. The technical problem that the current random number has great randomness, slow speed and bad stability is solved; and the random bit extracting method is circular, continuous, unlimited and high-speed.

The invention relates to an oil circuit system of a hydraulic substation, comprising a main oil circuit and an oil return circuit, the main oil circuit has a main oil inlet and a working oil inlet, and the oil return circuit has a working oil outlet and a main oil return port , there is a control oil circuit between the main oil circuit and the oil return circuit, the control oil circuit includes the main valve of the pressure reducing valve on the main oil circuit, and the main oil circuit is divided from the main valve of the pressure reducing valve and the main oil inlet The outlet is connected with a throttle valve, and the throttle valve is connected in series with an electromagnetic reversing valve. The electromagnetic reversing valve flows back into the oil return circuit through the first orifice; An overflow valve is connected, and the overflow valve returns to the oil return circuit; the main valve of the pressure reducing valve is connected with the accumulator through the second orifice, the accumulator, the second orifice, the electromagnetic reversing valve and the electromagnetic ball valve interconnected with each other. The oil circuit system of the hydraulic substation with this structure realizes the adjustable speed of the boosting and depressurizing process, thereby improving the service life of the hydraulic actuators and eliminating potential safety hazards.

The invention provides an electric thruster for submarines and ships. The electric thruster comprises a rotor seal shell, a variable-frequency motor rotor, a rotating shaft, a variable-frequency motor stator, a front bearing, a back bearing, a seal flange, a propeller, a variable-frequency speed governor and a variable-frequency motor shell; the rotor seal shell is made of a hard non-metal material, reinforcing ribs are arranged on the outer surface of the rotor seal shell in the length direction, a front-end opening of the rotor seal shell is fixedly connected with the seal flange, the circle center of the seal flange is provided with the front bearing, the back-end circle center of the seal flange is provided with a bearing sleeve and the back bearing, the variable-frequency motor rotor is arranged in the rotor seal shell and supported between the front bearing and the back bearing to freely rotate through the rotating shaft, and the front end of the rotating shaft stretches out of a ship shell for installing the propeller; the variable-frequency motor stator is integrally installed outside the rotor seal shell in a sleeving mode, the variable-frequency motor shell is installed outside the variable-frequency motor stator in a sleeving mode, the front end of the variable-frequency motor shell is fixedly connected with the seal flange, a support seat is arranged at the center circle of the back end in the variable-frequency motor shell and installed outside the bearing sleeve in a sleeving mode, the lower portion of the variable-frequency motor shell is provided with a mounting base, and the variable-frequency motor stator is electrically connected with the variable-frequency speed governor.

The invention relates to an FPGA-based high-speed Gray complementary code generation system with variable code length and adjustable rate, including: a host computer, an FPGA controller, a first memory, a second memory, a differential signal sending module, and a host computer control The FPGA controller generates and displays high-speed Gray's complementary codes, and the FPGA controller writes the generated pair of high-speed Gray's complementary codes into the first memory and the second memory respectively, and then reads data from the first memory and the second memory, and Use the differential signal sending module to output it. Using this system can generate a code length of 2 n (n is a natural number), the rate is 615Mbps~3.125Gbps high-speed Gray complementary code with variable code length and adjustable rate.

The invention relates to the technical field of chip interconnection, in particular to an FPGA-based interconnection device among chips. According to the FPGA-based interconnection device among the chips, a dynamic clock adjusting module, a low-voltage differential signal sending module and a low-voltage differential signal receiving module are arranged in each FPGA chip so that information transmission between the FPGA chips can be achieved. The interconnection device has the advantages of being adjustable in speed and high in flexibility.

The invention relates to the technical field of a plasma magnetic control cathode and in particular to a one-dimensional linear plasma cleaning magnetic control cathode device with high efficiency. The device is characterized in that the top of an electrode contact of a cathode is connected with a hollow pipeline and the bottom of the electrode contact of the cathode passes through an upper wall of a vacuum cavity body and is then connected with an upper surface of a cathode of a linear metal plate in the vacuum cavity body. A shield cover is arranged between the vacuum cavity body and the cathode of the linear metal plate and the upper partof the shield cover is also connected with a gas inlet pipe of which the top is positioned outside the vacuum cavity body. The upward side outside the vacuum cavity body is provided with a magnetic coil device. Compared with the prior art, the device has convenient and simple structure and realizes surface cleaning processing with high plasma density, low power consumption and high uniformity; the adjustment of the electromagnetic field can ensure the adjustable density of the plasma generated by the cathode so as to ensure the flexible application; and due to the adoption of a one-dimensional linear structure by the cathode, the device occupies small space and has easy installation. Therefore, the whole device has low production cost and can implement a large-area continuous cleaning technique.

The invention relates to the technical field of robots and particularly relates to an aquatic robot intelligent constant-speed cruising control method and system. The method comprises the following steps: setting power parameters such as a target cruising speed; obtaining a water flow speed; judging whether constant-speed cruising requirements are met according to the water flow speed; if the constant-speed cruising requirements are met, entering a constant-speed cruising mode by one key; in the constant-speed cruising mode, periodically and dynamically calculating the accelerator power based on the parameters such as ground speed vectors of an attitude heading reference system of an aquatic robot master controller to guarantee a constant speed; in the constant-speed cruising mode, supporting the modification of the cruising speed and automatically executing power judgment and continuous operation; and if the constant-speed cruising requirements are not met, executing the nearest and fastest automatic return intelligent protection policy.

The invention provides an automatic deveining robot. The robot comprises a main body frame, a belt, a grabbing part, a vein picking part, a vein lifting part and the like; the grabbing part comprisesa screw rod frame, a translation screw rod, a rotating motor frame, a rotating screw rod seat, a claw part and the like; the vein picking part comprises a needle connecting rod, a first up and down adjusting rod, an electric cylinder base, a vein picking needle and the like; and the vein lifting part comprises a vein clamping connecting rod, a second up and down adjusting rod, a pushing electric cylinder seat, a clamping seat, a clamping block and the like. Two grabbing parts, a vein picking part and four mechanical arms of the vein lifting part are respectively arranged on the main body frame; the grabbing part lifts shrimps on the belt; the vein picking part inserts a needle into the second section of shrimps, and picks out shrimp veins; the vein lifting part clamps the shrimp veins, andlifts the shrimp veins out of shrimp bodies; and after the whole deveining step is finished, the shrimps are placed on the belt, and then moved out of the robot.

The invention relates to a Mn-Zn ferrite sintering furnace, which comprises a furnace body, a heat energy recovery, a cooler, a condenser, an electrical control cabinet, a pump and a fan and the like, wherein the upper portion of the furnace body is provided with a gas outlet, the side surface of the furnace body is orderly provided with a gas inlet, a nitrogen and oxygen mixed gas inlet, a vacuum pump interface and an interface which is connected with the electrical control cabinet, the fan is orderly connected with the heat energy recovery and a fourth valve through a first valve, the fourth valve is divided into two circuits to connect with a first gas inlet and a second gas inlet of the furnace body, the other end of the heat energy recovery is connected with the gas outlet through the cooler, and a pipeline arranged between the heat energy recovery and the cooler is connected with a condenser. The Mn-Zn ferrite sintering furnace has the advantages of high purity nitrogen conservation, energy conservation and low manufacturing cost, and is an ideal device for meeting the demands of development of integrated small batch production of Mn-Zn ferrite materials.