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 relates to a mould-closing mechanism of a plastic injection molding machine. The mould-closing mechanism mainly comprises a fixed mould plate, a moving mould plate, a pull rod, a back mould plate, a toggle mechanism, a mould-closing cylinder, a mould-adjusting device, mould-locking cylinders and a locking device, wherein the number of the mould-locking cylinders is four; each mould-locking cylinder is mainly composed of a mould-locking cylinder barrel, a mould-locking cylinder piston and a mould-locking cylinder piston rod; each mould-locking cylinder piston rod is a part of the pull rod; the mould-locking cylinder barrels are fixed on the fixed mould plate; and the four mould-locking cylinders are connected through channels. By adopting the mould-closing mechanism of the invention, the defects of the existing three-plate toggle type mould-closing mechanism and two-plate direct pressure type mould-closing mechanism can be overcome, the advantages can be fully absorbed when the mould is moved and locked; the mould-closing mechanism has excellent characteristics, simple structure and stable and reliable performance and can meet the demands of various types of injection molding machines; and the mould-closing mechanism is suitable for new products and can be used in the improvement of the existing three-plate toggle type injection molding machine.

The invention discloses an intelligent supercharging device and method for a low-temperature thermal insulation container. The device comprises the low-temperature thermal insulation container and an electrical control system. A liquid outlet of the low-temperature thermal insulation container is connected with a stop valve through a liquid outlet pipeline. The stop valve is connected with an overflow valve through a liquid outlet pipeline. The overflow valve is connected with a vaporizer through a liquid outlet pipeline. The vaporizer is further internally provided with a heater. The outlet end of the vaporizer is connected with an engine, and the other end of the vaporizer is connected with a buffering tank through a supercharging pipeline. The buffering tank is connected with an air pump through a supercharging pipeline. The air pump is connected with a one-way valve through a supercharging pipeline. The one-way valve is connected with an air inlet in the upper portion of the low-temperature thermal insulation container through a supercharging pipeline. The electrical control system is connected with the heater, the air pump, a pressure sensor installed on the low-temperature thermal insulation container, and a temperature sensor installed at the outlet end of the atomizer through a control circuit. By means of the intelligent supercharging device and method for the low-temperature thermal insulation container, rapid and safe supercharging can be achieved for the low-temperature thermal insulation container within short time.

The invention relates to a system and a method for intelligently controlling a rotation speed of a variable-frequency fan. The system comprises a detection module, a controller and an execution part, wherein the detection module consists of a data acquisition card and a sensor, the controller consists of a computer, and the execution part consists of a frequency converter and a fan; the signal output end of the computer is connected with the signal input end of the frequency converter, and the signal output end of the frequency converter is connected with the signal input end of the fan; the signal output end of the fan is connected with the input end of a static pressure box, and the output end of the static pressure box is connected with the input end of the sensor; the signal output end of the sensor is connected with the signal input end of the data acquisition card, and the signal output end of the data acquisition card is connected with the signal input end of the computer. On the basis of comprehensive consideration about various factors influencing the pressure of the static pressure box, a linear relationship between the working condition parameters of one static pressure box and the rotation speed of the fan is established, so that control signals are greatly regulated, the speed of a rotation speed control system is greatly increased, and the accuracy of the rotation speed control system is greatly improved.

The invention discloses a ture triaxial rock test machine with a temperature control system. The machine comprises a loading component, a temperature control system, and a cooling component, wherein the loading component comprises a loading housing and a loading oil cylinder, and the loading housing is provided with adjusting screw holes and is internally provided with a loading chamber; the adjusting screw holes and movable push rods are screwed and assembled by screw threads; three loading rods for loading oil cylinders enter the loading chamber through the cooling components separately; wherein two loading rods and two movable push rods are respectively coaxial, and the third loading rod penetrates the top of the loading housing; the top of the loading chamber is also communicated with an exhaust pipe and an oil inlet, the exhaust pipe is communicated with an overflow bin after passing through a tube body whose height is not less than the height of the loading chamber, and the exhaust pipe is also provided with a reversing valve; the invention also discloses a temperature control method of the temperature control system. The temperature control method is equipped with a heating step and a cooling step which can automatically search optimum, in order to maximize heating or cooling efficiency of the oil body.

The invention discloses a true triaxial rock test rig, comprising a frame base, wherein the bottom surfaces of two mutually parallel side support plates on the top surface of the frame base are connected fixedly, a frame top plate is fixed on the top surfaces of the side support plates; the top parts of four screw rods penetrate through the frame top plate and a lifting frame and are assembled with the frame base; the screw rods are screwed and assembled with the lifting frame through threads; the top parts of the screw rods extend out of the frame top plate, a screw rod belt pulley is fixed to each extending end, the four screw rods are connected with the screw rod belt pulleys at the top parts through a first lifting synchronous belt to form a belt driven structure, and one of the four screw rods is connected with another screw rod belt pulley and a motor belt pulley fixed to the output shaft of a lifting motor through a second lifting synchronous belt to form a belt driven structure; and a loading assembly is fixed in the lifting frame and comprises a loading shell, an adjusting screw hole is formed in the loading shell and a loading cavity is arranged in the loading shell. The invention also discloses a temperature control system and a temperature control method thereof of the true triaxial rock test rig.

The invention discloses a high-pressure air-tightness test device. The device comprises a pump gas source, a booster pump, a controller, a sealed air cylinder, and a pressure test apparatus, the internal part of the sealed air cylinder is used for placing a tested member, the controller is used for controlling the pump gas source to drive the booster pump to boost the test gas to a set threshold, the booster pump is used for transmitting the test gas to the internal part of the tested member, the pressure test apparatus is used for testing pressure values in the sealed air cylinder in a time period after boosting to the set threshold and transmitting the pressure values to the controller, and the controller is used for determining whether the pressure value received at a later moment is always greater than the pressure value received at a previous moment in the time period and emitting prompt information of air leakage of the tested member if yes. According to the device, whether the tested member has air leakage can be accurately detected, the accuracy of test results is high, and a boosting loop is additionally provided so that the test gas in the loop is input to the booster pump again to realize secondary boosting, and the boosting time is reduced.

The invention provides a porcelain insulator detection method and a porcelain insulator detection circuit, and the porcelain insulator detection method comprises the steps: S101, respectively transmitting an impact voltage to a normal porcelain insulator and a to-be-detected porcelain insulator through an impact voltage generator, and obtaining voltage change waveform data through a measurement loop; S102: according to the obtained voltage sequence and time sequence, obtaining the charge quantity of the normal porcelain insulator, the first equivalent charge quantity and the second equivalentcharge quantity of the to-be-detected porcelain insulator; and S103, judging whether the to-be-detected porcelain insulator is a deteriorated porcelain insulator or not according to whether the secondequivalent charge quantity is smaller than the product of the first equivalent charge quantity and a preset threshold value or not. The impulse voltage generator sends impulse voltage to the porcelain insulator, the short-time high voltage of the impulse voltage is used for breaking through internal defects of a porcelain part of the porcelain insulator and exposing internal insulation, the problem of missing detection of a deteriorated porcelain insulator is avoided, the pressurization time is short, the power is low, the energy consumption is low, and miniaturization and large-batch detection of detection equipment are facilitated.

The invention discloses an injection pressure-boosting and speed-increasing structure of a die casting machine. The injection pressure-boosting and speed-increasing structure comprises an injection punch, wherein an injection part is arranged at one side of the injection punch; an injection oil cylinder, an injection piston rod and a pressure-boosting oil cylinder are sequentially arranged at the other side of the injection punch; a pressure-boosting cavity is formed between the injection piston rod and the pressure-boosting oil cylinder; and a primarily quick oil path block assembly and a secondarily quick oil path block assembly are arranged on the pressure-boosting oil cylinder. According to the injection pressure-boosting and speed-increasing structure, the speed of the primarily quick action and the secondarily quick action is increased by a design method and a control mode which are combined with a practical production process, so that requirements of producing thin-wall parts such as a magnesium alloy mobile phone middle plate and the like are met, and a common horizontal type cold chamber die casting machine is transformed into a special die casting machine for thin-wall parts represented by the die-cast magnesium alloy mobile phone middle plate; the modified die casting machine can realize that cast pieces are full, less in shrinkage cavities, smooth in surface, good in smoothness, free of flow marks, less in flanges, free of air bubbles and flaws and high in practicability, and meet processing requirements.

The invention provides a sterilization method of pickled vegetables through a pulse type super-high pressure technique. The sterilization method is characterized by comprising the following steps of placing the pickled vegetables into a sealed bag, putting the sealed bag into super-high pressure equipment, and performing pulse type pressure increase and pressure relief for 2-3 times, wherein the pressure peak is 400MPa-600MPa; and preferably, performing pulse type pressure increase and pressure relief twice, wherein the pressure peak is 500MPa-600MPa. According to the treatment method, sterilization can be performed at low temperature, so that original flavor and nutrition of foods can be maintained, and the quality guarantee period of the foods can be prolonged. The treatment time is short, the energy consumption is reduced, and purposes of saving energy and reducing emission are effectively realized. Compared with a constant pressure type super-high pressure treatment method, the sterilization treatment method has the advantage that under the conditions of equal pressure and reaching the same sterilization effects, the pressurization treatment time is shorter.

The invention provides a high-pressure hard cabin, and relates to the field of healthcare and medical apparatus and instruments. The high-pressure hard cabin comprises oxygen generators, a cabin, a cabin door, a sealing assembly, air conditioning systems, a gas supply device and a controller. The cabin door is arranged on a side of the cabin and is completely hermetically connected with the cabinby the sealing assembly, the air conditioning systems are arranged in the cabin, the controller is connected with the air conditioning systems and is used for controlling and adjusting the internal temperature of the cabin, and the oxygen generators are connected with the cabin by the gas supply device and are used for injecting oxygen into the cabin. The high-pressure hard cabin has the advantages that effects of relieving fatigue by means of oxygen inhalation can be realized by the high-pressure hard cabin, the content of the oxygen in the high-pressure hard cabin can be increased, the oxygen content of blood of human bodies can be increased, accordingly, the human bodies can feel comfortable, and certain healthcare and treatment effects can be realized; the problem of use barriers for vulnerable groups such as old people and children can be effectively solved by the aid of the high-pressure hard cabin which is a hard oxygen cabin, spacious and comfortable oxygen inhalation environments can be provided to users by the high-pressure hard cabin, the problem of inconvenience in accessing cabins further can be effectively solved by the aid of the high-pressure hard cabin, and the high-pressure hard cabin is easy to popularize.

The invention discloses an environment-friendly plate prepared from UF-emulsible MDI. The plate is prepared from, by weight, 70-95 parts of circuit board powder, 10-20 parts of the UF-emulsible MDI, 3-15 parts of a catalyst and 1-7 parts of chemical fiber. A preparing method includes the steps that the circuit board powder is dried and stirred, the catalyst and the chemical fiber are added, a double-shaft agravic efficient mixer is used for turnover and mixing, then UF-emulsible MDI is sprayed on the mixture, the mixed mixture is put into a mold flat plate and is heated and pressurized to obtain the plate. The environmental-friendly plate has the advantages that the circuit board powder is used as the raw material of the environmental-friendly plate, waste circuit boards are recycled and reused, environment pollution is avoided, no irritant formaldehyde is separated out of the prepared environment-friendly plate, environment pollution is reduced, the pressurizing time during manufacturing is short, production efficiency is effectively improved, the requirement for the water content of the circuit board powder is low, energy can be saved, and the plate is good in water resistance, high in strength and low in density and meets the idea of an environment-friendly building material.

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 portable pressurization control device which is convenient to use. The device comprises a pressure cylinder A and a pressure cylinder B which are connected together by bolts. The pressure cylinder A is internally provided with a pressurization piston A. One end of the pressurization piston A is connected with one end of a pressurization pipeline A. The other end of the pressurization pipeline A is provided with a 21 MPa pressure outlet. The pressure cylinder B is internally provided with a pressurization piston B. One end of the pressure cylinder B is connected with one end of a pressurization pipeline B. The other end of the pressurization pipeline B is provided with a 35 MPa pressure outlet. The pressurization pipeline B is connected with the pressurization pipeline A through a pressure inlet pipe. The pressure inlet pipe is connected with a pressure gauge of a pressure source through a pressure gauge connecting pipe C. The pressurization pipeline A is connected with a pressure gauge A through a pressure gauge connecting pipe A. The pressurization pipeline B is connected with a pressure gauge B through a pressure gauge connecting pipe B.

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 discloses a vehicle tank. The vehicle tank comprises a tank main body, a plurality of partition plates, switch devices and a supercharger, wherein the partition plates are used for dividing the tank main body into a first preset number of cabins; the switch devices are mounted among the cabins, and can communicate with the cabins or can close the cabins; and the supercharger can supercharge gas in the tank main body. In use, each chamber can be closed by the switch devices, so that each chamber is an independent unit; during unloading, one cabin can be supercharged and unloaded through the supercharger; and single cabin is smaller than the volume of the vehicle tank, and therefore, time needed for single-time supercharging is short, supercharging efficiency is high and distributing efficiency is also high. When liquid in one cabin is used out, gas-phase pressure can be kept; and during next-time supercharging, the liquid is guided into another cabin, so that superchargingtime is shortened, and distributing efficiency is high. Tank body supercharging speed of the tank car is increased, and LNG distributing efficiency is improved.

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 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 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 a ture triaxial rock test machine with a temperature control system. The machine comprises a loading component, a temperature control system, and a cooling component, wherein the loading component comprises a loading housing and a loading oil cylinder, and the loading housing is provided with adjusting screw holes and is internally provided with a loading chamber; the adjusting screw holes and movable push rods are screwed and assembled by screw threads; three loading rods for loading oil cylinders enter the loading chamber through the cooling components separately; wherein two loading rods and two movable push rods are respectively coaxial, and the third loading rod penetrates the top of the loading housing; the top of the loading chamber is also communicated with an exhaust pipe and an oil inlet, the exhaust pipe is communicated with an overflow bin after passing through a tube body whose height is not less than the height of the loading chamber, and the exhaust pipe is also provided with a reversing valve; the invention also discloses a temperature control method of the temperature control system. The temperature control method is equipped with a heating step and a cooling step which can automatically search optimum, in order to maximize heating or cooling efficiency of the oil body.

The invention discloses a transformer substation bus PT voltage passing system and method. The transformer substation bus PT voltage passing system comprises a first bus unit, a second bus unit, a first bus PT unit, a second bus PT unit, a bus coupler unit, a PT parallel unit and a relay protection tester, wherein the first bus unit is connected with the second bus unit through the bus coupler unit, the first bus PT unit is connected with the first bus unit, the second bus PT unit is connected with the second bus unit, and the PT parallel unit is connected with the relay protection tester, the first bus PT unit, the second bus PT unit and the bus coupler unit. The transformer substation bus PT voltage passing system and the method can realize the voltage conduction of the transformer substation bus PT, and have the characteristics of short voltage conduction time, low working intensity and high efficiency.

The invention discloses a coenzyme Q10 aqueous dispersion and a preparation process thereof.The preparation process includes the following steps that firstly, raw material preparation is carried out, wherein coenzyme Q10, gum matter, sugar, an emulsifier, soluble starch, a cosolvent and water are prepared; secondly, the gum matter is added into water to be dissolved, then the soluble starch, the sugar and the emulsifier are added and heated to be dissolved, and the solution is stirred evenly for use; thirdly, the cosolvent is heated to be dissolved, and then the coenzyme Q10 is added and heated to be dissolved for use; fourthly, pressurizing treatment is carried out, wherein the materials treated in the second step and the third step are put into a high-pressure tank and pressurized to 4 kg / cm<2>, the pressure is made uniform, kept for 5-10 min and then restored to be normal within 1-3 s, and mixed liquor is obtained; fifthly, the mixed liquor obtained in the fourth step is subjected to spray drying, and coenzyme Q10 aqueous dispersion powder is obtained.

The invention provides a porcelain insulator internal insulation detection method and a porcelain insulator detection circuit, and the method comprises the steps: S101, transmitting an impact voltagethrough an impact voltage generator, and obtaining voltage change waveform data through a measurement loop; S102, acquiring a first voltage amplitude, a first attenuation time constant, a second voltage amplitude and a second attenuation time constant according to the voltage change waveform data; S103, acquiring the insulation resistance of the porcelain insulator to be detected according to thefirst attenuation time constant and the second attenuation time constant; and S104, judging whether the porcelain insulator to be detected is a deteriorated porcelain insulator or not according to thefirst voltage amplitude and the second voltage amplitude or the insulation resistance of the normal porcelain insulator and the insulation resistance of the porcelain insulator to be detected. The method is high in accuracy, can quickly detect the porcelain insulator with internal insulation degradation, is short in pressurization time, is low in power, is low in energy consumption, is simple injudgment logic, facilitates the integration, facilitates the miniaturization of detection equipment, and is wide in application range.

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 mold adjusting and locking device of a plastic injection molding machine, and relates to a direct-pressing gear linkage mold adjusting and locking device suitable for a plastic injection molding machine. The device mainly consists of a fixed template, a movable template, a rear template, a pull rod, a toggle rod mechanism, a die assembly cylinder and a mold adjusting andlocking device, wherein the mold adjusting and locking device consists of a mold locking cylinder, a mold adjusting nut pad I, a mold adjusting nut pad II, a mold adjusting gland, a strut, a mold adjusting big gear ring, a bearing, a small shaft and a power unit. Compared with the prior art, the mold adjusting and locking functions are organically combined, and the toggle rod mechanism is reserved, so 'slow-fast-slow' motion characteristics and force amplification effect are ensured to be realized when a mold is moved; because the mold locking cylinder is integrated on the mold adjusting device, poor mold locking precision of the toggle rod mechanism is avoided by direct mold locking of the mold locking cylinder; and the mold locking force has high repetition precision, and mold locking is stable and reliable. The technology is suitable for a new product, and is also suitable for processing and reforming the conventional injection molding machine.

The invention relates to an intelligent split pressurization control system and method based on fan superposition. The signal output end of a computer is used as the input end of a frequency converter through a control module, the signal output end of the frequency converter is connected with the input end of a main fan, the system is further provided with an additional controller, and the additional controller is composed of an auxiliary fan and an additional circuit; the signal output end of the frequency converter is further connected with the input end of the additional circuit, and the output end of the additional circuit is connected with the input end of the main fan and the input end of the auxiliary fan, and the auxiliary fan is connected with the main fan in series; the output end of the static pressure box is connected with the input end of a pressure sensor; and the signal output end of the pressure sensor is connected with the input end of an acquisition module, and the signal output end of the acquisition module is connected with the signal input end of the computer. According to the intelligent split pressurization control system, on the premise that original mechanical and electrical structures are not changed, and the additional controller is implanted, so that the linear regulation of the air pressure of different working conditions is realized.

The invention discloses a true triaxial rock test rig, comprising a frame base, wherein the bottom surfaces of two mutually parallel side support plates on the top surface of the frame base are connected fixedly, a frame top plate is fixed on the top surfaces of the side support plates; the top parts of four screw rods penetrate through the frame top plate and a lifting frame and are assembled with the frame base; the screw rods are screwed and assembled with the lifting frame through threads; the top parts of the screw rods extend out of the frame top plate, a screw rod belt pulley is fixed to each extending end, the four screw rods are connected with the screw rod belt pulleys at the top parts through a first lifting synchronous belt to form a belt driven structure, and one of the four screw rods is connected with another screw rod belt pulley and a motor belt pulley fixed to the output shaft of a lifting motor through a second lifting synchronous belt to form a belt driven structure; and a loading assembly is fixed in the lifting frame and comprises a loading shell, an adjusting screw hole is formed in the loading shell and a loading cavity is arranged in the loading shell. The invention also discloses a temperature control system and a temperature control method thereof of the true triaxial rock test rig.

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.