31results about How to "Short pressurization time" patented technology

The invention relates to a variable-mold-clamping-force pipe internal high-pressure forming method, which comprises the steps that after an upper mold and a lower mold are clamped, forming media with certain pressure is filled into a mold cavity, pushing heads on a left side and a right side simultaneously push pipe blanks into the mold cavity from the left side and the right side, the pipe blanks are pressed into the mold cavity to be formed through internal pressurization and axial force application and material compensation under the joint effect of the pressure of the forming media and the material compensation of the pushing heads, and finally the pipe blanks are in fit with the mold cavity to realize part formation. Since different mold clamping forces are adopted at different stages, the defects that the pressure required by the traditional constant-mold-clamping-force tube internal high-pressure forming method is high, the requirements on machine performance, mold performance, sealing performance and mold lubricating performance are high, the machine cost is high, the situation of mold lifting is apt to occur, the part forming pressure is high, large-deformation complex parts cannot be formed, the working efficiency is low and the like are overcome.

The invention discloses a high-pressure and large-flow hydraulic device capable of rapidly pressurizing. The high-pressure and large-flow hydraulic device comprises a high-pressure energy accumulator group, a middle-pressure energy accumulator group and a small-flow high-pressure oil pump, wherein an output oil path of the high-pressure energy accumulator group is connected with a hydraulic execution element; an output oil path of the middle-pressure energy accumulator group is connected with the hydraulic execution element; an input oil path of the small-flow high-pressure oil pump is connected with an oil tank; and an output oil path of the small-flow high-pressure oil pump is connected with the high-pressure energy accumulator group. With the adoption of the structure, the high-pressure and large-flow hydraulic device capable of rapidly pressurizing has the beneficial effects that the used oil pump is small, is easy to mount and is low in price; the power needed by the small-flow high-pressure oil pump is small, the impact to an electric system is small and the energy consumption is low; and the pressurizing time of the high-pressure energy accumulator group is short and the device can be rapidly pressurized within the very short time.

The invention discloses a gas storage control system and method for intelligent dynamic storage of biogas, comprising: an anaerobic fermentation tank, a cold dryer, a pressure transmitter, an electric control box, a volumetric gas conveyor, and a double-membrane gas cabinet; The gas output end of the oxygen fermentation tank is connected to the gas input end of the cold dryer, the gas output end of the cold dryer is connected to the gas input end of the pressure transmitter, the signal output end of the pressure transmitter is connected to the signal input end of the electric control box, and the electric The control box controls the pressure transmitter to transport biogas, the gas output end of the pressure transmitter is connected to the gas input end of the volumetric gas conveyor, and the output end of the volumetric gas conveyor is connected to the gas input end of the double-membrane gas holder. Through the present invention, it can be realized that after the low-pressure biogas gas is dried, it can be stored as high-pressure biogas gas, which is convenient to use and stable and reliable in operation.

The invention discloses a coenzyme Q10 aqueous dispersion and a preparing method thereof. The preparing method comprises the following steps that 1, raw materials are prepared, wherein coenzyme Q10, gum substance, sugar, an emulsifying agent, soluble starch, cosolvent and water are prepared; 2, water is added into the gum substance to dissolve the gum substance, the soluble starch, the sugar and the emulsifying agent are added, and the mixture is heated, dissolved and stirred uniformly for use; 3, the cosolvent is heated and dissolved, and then coenzyme Q10 is added, heated and dissolved for use; 4, pressurizing is carried out, materials treated in the step two and the step three are placed into a high-pressure tank and pressurized to 4 kg / cm<2> to enable pressure to be uniform, the pressure is kept for 5-10 min, and then normal pressure is restored within 1-3 seconds, so that mixed liquor is obtained; 5, the mixed liquor obtained in the step four is dried in a spraying mode, so that coenzyme Q10 aqueous dispersion powder is obtained.

The invention belongs to the preparation technology of powder metallurgy materials, in particular to a method for synchronously improving the density and elongation of powder metallurgy materials. The specific operation is: press the raw material powder into shape; obtain the compact; put the obtained compact into the graphite mold and put them into the hot-press furnace together, keep the vacuum state of the furnace, and then sinter by the sintering method of low temperature and high pressure + high temperature and low pressure; to get the finished product. The process of the invention is simple, the pressure to be applied is small, the prepared powder metallurgy product has uniform structure, the density is as high as 99%, the loss of main alloy element components is small, the elongation is nearly 100% higher than that of conventional liquid phase sintering, and its comprehensive mechanical properties obtained a significant improvement.

The present invention relates to an intelligent split pressurization control system and method based on fan superposition. The signal output end of the computer is used as the input end of the frequency converter through the control module, and the signal output end of the frequency converter is connected to the input end of the main fan. There is an additional controller, which is composed of an auxiliary fan and an additional circuit; the signal output end of the frequency converter is also connected to the input end of the additional circuit, and the output end of the additional circuit is respectively connected to the input end of the main fan and the auxiliary fan, and the auxiliary fan is connected to the main fan. The fan is connected in series; the output end of the static pressure box is connected to the input end of the pressure sensor; the signal output end of the pressure sensor is connected to the input end of the acquisition module, and the signal output end of the acquisition module is connected to the signal input end of the computer. On the premise of keeping the original mechanical and electrical structure unchanged, the present invention implants an additional controller part to realize the linear adjustment of air pressure in different working conditions.

The invention discloses an intelligent pressurizing device and a pressurizing method for a low-temperature thermal insulation container. The device comprises a low-temperature thermal insulation container and an electrical control system. The pipeline is connected to the overflow valve, the overflow valve is connected to the carburetor through the liquid outlet pipeline, and a heater is also installed in the carburetor; one end of the outlet of the carburetor is connected to the engine, and the other end is connected to the buffer tank through the booster pipeline, and the buffer tank passes through The booster pipeline is connected with the gas pump, the gas pump is connected with the check valve through the booster pipeline, and the one-way valve is connected with the upper air inlet of the low temperature adiabatic container through the booster pipeline; the electrical control system is respectively connected with the heating system through the control circuit. The gas pump, the pressure sensor installed on the low temperature adiabatic container and the temperature sensor installed at the outlet end of the vaporizer are connected, and the invention can quickly and safely pressurize the low temperature heat insulation container in a short time.

The invention discloses a multi-stage multi-purpose hydraulic booster with variable boosting ratio, which comprises a multi-stage boosting structural part, a hydraulic oil circuit and its control components, a boosting fluid circuit and its control components; the multi-stage booster The structure includes a hydraulic chamber, a first-stage pressurized chamber, a second-stage pressurized chamber and a third-stage pressurized chamber; the hydraulic oil circuit and its control components include electromagnetic travel limit switches, three-position four-way electromagnetic reversing valves, controllers, hydraulic pressure Oil inlet and drive hydraulic oil return port; pressurized fluid circuit and its control components include check valve, hydraulic control check valve, two-position two-way electromagnetic reversing valve, pressurized fluid inlet, non-pressurized fluid outlet and pressurized fluid outlet. The boost ratio variable multi-stage multi-purpose hydraulic booster can output high-pressure fluids with different boost ratios not limited to water or hydraulic oil without changing the booster under the action of the controller through multi-stage control. The scope of use of the supercharger and the supercharging environment are expanded, and the effect of one device with multiple pressures and one device with multiple functions can be achieved.

The invention discloses coenzyme Q10 aqueous dispersion and a preparation method thereof. The preparation method comprises the following steps: 1) preparing raw materials, namely, preparing coenzyme Q10, gum substances, sugar, an emulsifier, soluble starch, a cosolvent and water; 2) adding water to dissolve the gum substances, further adding the soluble starch, the sugar and the emulsifier, heating to dissolve the materials, and uniformly stirring for later use; 3) heating to dissolve the cosolvent, further adding coenzyme Q10, and heating to dissolve the materials for later use; 4) performing pressurization treatment, namely, putting materials treated in the step 2) and the step 3) into a high-pressure tank, pressurizing to 4kg / cm<2>, balancing the pressure, keeping the pressure for 5-10 minutes, recovering the normal pressure within 1-3s seconds, thereby obtaining a mixed liquid; and 5) performing spray drying on the mixed liquid in the step 4), thereby obtaining coenzyme Q10 aqueous dispersion powder.