7results about How to "Reduce the compression ratio" patented technology

The application discloses a machine head for manufacturing soft polytetrafluoroethylene insulated wire and a processing method thereof. The machine head comprises a connecting head in the machine head, a die core is arranged at the top of the connecting head through a die core base, a die sleeve is arranged outside the die core, a center tube is arranged at the bottom center of the connecting head, the machine head comprises two conical bodies with different angles, a bottom conical angle and a top conical angle, the angle of the top conical angle is smaller than that of the bottom conical angle, the wire bearing section of the machine head is horizontal to the die core base, the connecting head comprises two trapezoidal cones with different angles, a bottom conical angle and a top conical angle, the bottom conical angle is the same as the bottom conical angle, and the top conical angle is smaller than the top conical angle, a conductor anti-shaking device is arranged at the bottom of the center tube, the conductor anti-shaking device comprises arc-shaped groove wheels and springs, and the arc-shaped groove wheels are connected through a center rod. The steps are as follows: filling; center tube and die core related component installation; machine head and die sleeve installation; and pushing and extruding. The application can make the insulation layer outside the conductor more compact, and avoid the bending phenomenon of the conductor during processing.

The invention relates to a self-adaptive quantum random number generation method based on real-time entropy estimation, and belongs to the technical field of quantum random number generation. According to an existing integrated quantum random number generator, due to the non-stationary characteristic of a physical entropy source, the entropy rate dynamically drifts, and after-processing parameters are fixed, randomness safety and generation efficiency are difficult to guarantee at the same time. According to the method, the state transition probability of the original random bit stream is counted in real time, the confidence interval correction is introduced to calculate the minimum entropy, the input bit width is dynamically adjusted accordingly, the Toeplitz matrix is reconstructed for random extraction, and self-adaptive adjustment of the compression ratio is achieved. According to the method, the compression ratio is increased to ensure the security of the output random number when the entropy source quality is reduced, and the compression ratio is reduced to improve the generation efficiency when the entropy source quality is improved, so that the dynamic balance between the randomness security and the generation efficiency is realized on the premise of keeping integration and low cost.

The application relates to a high-speed stretching controllable spring for bicycle seat adjustment, which comprises a starting top rod, a hollow piston rod, a framework guide, a sealing ring, a pressurized air cavity, a positioning groove, a piston assembly, an oil cavity and a cylinder barrel, the cylinder barrel is divided into the pressurized air cavity and the oil cavity by the positioning groove, the framework guide is arranged at one end of the cylinder barrel, the sealing ring is arranged on one side of the framework guide, the piston assembly is arranged at one end of the oil cavity, one end of the hollow piston rod is connected with the piston assembly, the other end of the hollow piston rod penetrates through the framework guide and extends to the outside of the cylinder barrel, the starting top rod is arranged in the hollow piston rod in a penetrating mode, a piston valve needle is arranged in the piston assembly, and the piston valve needle is connected with the starting top rod; the application solves the problem of slow seat adjustment stretching speed, improves the adjustment response efficiency, reduces the product size, optimizes the installation adaptability, reduces the compression ratio and reduces the operation force change.

The invention discloses a hydrogen energy and natural energy heat pump heat supply and refrigeration integrated system and method, and relates to the technical field of hydrogen energy and natural energy heat pump heat supply and refrigeration integration. The heat pump heating module comprises the following steps that S1, carbon dioxide in air is absorbed through a refrigerant or the refrigerant and released into water; the carbon dioxide heat pump is used, and carbon dioxide is a clean refrigerant, has no destructive influence on the environment, is stable in chemical property, non-combustible, not easy to decompose at high temperature, does not generate harmful gas, is non-toxic, reduces threats to people due to leakage, is good in fluidity and has a relatively high evaporation latent heat value; compared with conventional refrigerants, the compression ratio of carbon dioxide is much smaller than that of common refrigerants, high performance coefficient and mechanical efficiency can be achieved, the high condensing temperature enables the exhaust temperature of a compressor to be high, and water at the high temperature can be obtained.

The utility model discloses a kind of gas suspension centrifugal water chiller unit, its compressor is gas suspension centrifugal compressor;The coolant inlet of condenser is connected to the outlet of compressor;The coolant outlet of condenser is two-way: first road connects the liquid inlet of economizer, second road is sequentially connected the inlet of ball valve and second expansion valve;The motor heat dissipation pipeline inlet of compressor is connected to the outlet of second expansion valve;The inlet of isolating valve is connected to the motor heat dissipation pipeline outlet of compressor;The top of evaporator is connected to the outlet of isolating valve;The outlet of economizer is two-way: liquid outlet connects the inlet of first expansion valve;Gas outlet connects the medium-pressure cavity of compressor;The coolant inlet of evaporator is connected to the outlet of first expansion valve;The inlet of compressor is connected to the coolant outlet of evaporator.Using the utility model, not only can significantly improve system efficiency, but also can utilize the high-efficiency cooling motor of system itself cold source, without external cooling system.

The invention discloses a pneumatic supply system, which relates to the field of pneumatic supply, and is characterized in that a two-stage compression framework comprising a low-pressure compression unit and a high-pressure compression unit is constructed, an air storage unit is used as an intermediate air source buffer, and a plurality of controlled valves in a valve group unit are matched to flexibly schedule an air flow path; a plurality of originally dispersed and independent gas source systems are successfully integrated into a single integrated system; the control unit can analyze the target pressure value in the gas use request in real time and execute intelligent hierarchical regulation and control. By means of the design, wide-range working pressure from low pressure to high pressure is covered, and invalid energy consumption of the high-pressure compression unit under the low-pressure working condition is remarkably avoided.

The invention discloses a heat pump circulating system. The heat pump circulating system comprises an evaporator assembly, wherein the evaporator assembly comprises a first evaporator and a second evaporator which are connected in parallel; the compression component is provided with a first compression part and a second compression part, the first compression part is communicated with the first evaporator, and the second compression part is communicated with the second evaporator; the condenser assembly, the evaporator assembly, the compression part and the condenser assembly form a heat exchange loop, and the heat exchange loop comprises a first loop composed of the first evaporator, the first compression part and the condenser assembly and a second loop composed of the second evaporator, the second compression part and the condenser assembly. The invention further discloses clothes processing equipment applying the heat pump circulating system. According to the technical scheme, the load and the compression ratio of the compressor can be reduced at the low evaporation temperature and the high condensation temperature.