22results about How to "Low operating pressure" patented technology

The invention discloses a ship navigation risk assessment and decision-making method and system, a medium and a product. The method comprises the following steps: acquiring ship navigation parameters, and meteorological data and ocean data within a future preset duration; determining a meteorological influence value and an ocean influence value according to the meteorological data and the ocean data; inputting the sailing speed value, the load tonnage value, the meteorological influence value and the ocean influence value into a preset sailing risk assessment function to obtain a sailing risk value in a future preset duration; when the navigation risk value exceeds a preset risk threshold value, searching a reachable port; determining harbor information of reachable harbors according to a preset harbor database; determining an optimal reachable port based on the wind sheltering condition, the berth state and the geographic position; calculating an optimal wind-sheltering path between the ship and the optimal reachable port and the sailing duration and sailing fuel consumption of the optimal wind-sheltering path; and visually displaying the optimal wind sheltering path, the sailing duration and the sailing fuel consumption. By implementing the method, the ship navigation decision making efficiency is improved.

The invention provides a double-layer adsorption type high-pressure hydrogen storage tank system and method, relates to the technical field of gas storage tanks, and aims to solve the problem that the hydrogen storage capacity is difficult to meet the requirements due to the fact that an existing hydrogen storage system adopts a single-layer structure, a hydrogen storage tank is configured to adopt a double-layer tank structure, and different types of adsorption materials are filled between an inner tank and an outer tank and in the inner tank respectively. According to the hydrogen storage system, relatively independent temperature and pressure regulation and control can be realized, so that the hydrogen storage effect is synergistically optimized, the hydrogen storage density is improved, the operation pressure of the hydrogen storage tank can be reduced, and the safety and economical efficiency of the hydrogen storage system are improved.

The invention relates to the field of preparation of acrylate rubber, and discloses a preparation method of acrylate rubber, the acrylate rubber and application of the acrylate rubber. The preparation method comprises the following steps: S1, contacting a polymeric monomer and an aqueous solution of an emulsifier in a loop reactor for emulsification, and then adding an initiator and ethylene for polymerization reaction to obtain an acrylate rubber emulsion; wherein the polymeric monomer is an acrylate monomer and / or a monomer with a crosslinking active group; the temperature of the polymerization reaction is 10 to 90 DEG C, and the pressure of the polymerization reaction is 0.1 to 2.5 MPa; s2, the acrylate rubber emulsion is led out from the top of the loop reactor and then subjected to steam stripping, condensation, demulsification, water washing and drying treatment, and the acrylate rubber is obtained. According to the preparation method of the acrylate rubber, the ethylene unit is introduced into the acrylate rubber on the premise that the temperature and the pressure are not too high, so that the performance of the product is improved, and the production cost is reduced.

The invention belongs to the technical field of separation and purification, and particularly relates to a dimethyl carbonate purification device and a dimethyl carbonate purification method. According to the purification device provided by the invention, by combining gravity settling in the steam straight pipe with a specific size and cyclone separation and precision filtration of the cyclone filtration device, liquid drops entrained in the evaporation device in a gas evaporation process can be reduced, and impurities reaching a tower top product can be controlled, so that the purpose of purifying tower top fractions is achieved; the metal ions in the raw materials are effectively removed, the content of the metal ions in chemicals is remarkably reduced, the product quality is improved, the content of single metal ions can be reduced to 0.1 ppb or below, and the content of total metal ions can be reduced to 1ppb or below.

The invention discloses a mode-mixed marine target aircraft program-controlled flight method, which is composed of a route fixed mode and a route follow-up mode, that is, a target aircraft only processes received ship information in a route task section, and carries out real-time calculation, adjustment and refreshing on navigation waypoints to keep the relative orientation and distance of the target aircraft relative to a ship unchanged; the flight route waypoints outside the task segment are not refreshed and calculated, and the flight is still carried out according to the fixed flight route. According to the method, route planning operation is easy and convenient, the target aircraft can automatically judge the position of the target aircraft in the flight process to achieve main ship switching, information receiving, route resolving, adjusting and refreshing, especially when multiple aircrafts fly along with the ship in the same air, the workload and operation pressure of ground operators are greatly relieved, and high engineering practicability is achieved.

This invention provides a double-layer adsorption high-pressure hydrogen storage tank system and method, relating to the field of gas storage tank technology. Addressing the problem that current hydrogen storage systems using single-layer structures cannot meet demand, this invention configures a hydrogen storage tank with a double-layer structure. Different types of adsorption materials are filled between the inner and outer tanks, and within the inner tank, respectively. This allows for relatively independent temperature and pressure control, thereby achieving synergistic optimization of hydrogen storage performance, increasing hydrogen storage density, and reducing the operating pressure of the hydrogen storage tank, thus improving the safety and economy of the hydrogen storage system.

This invention discloses a pressure regulating valve and a method for regulating the pressure of a coke oven carbonization chamber. The valve includes a single-adjustment regulating valve comprising: a shell with a through-hole channel running vertically through it, one end of which is connected to the output port of a bridge pipe, and the other end of which is equipped with a water seal valve; a valve plate with a rotating shaft on one side, the valve plate being rotatably disposed within the channel, the rotating shaft being used to control the opening and closing degree of the valve plate; and an adjusting component including an adjusting gear and a driving component. The adjusting gear is sleeved on the rotating shaft to drive the rotating shaft to rotate. The adjusting gear has a first locking tooth and a second locking tooth arranged around its center, the number of teeth in the first locking tooth being greater than the number of teeth in the second locking tooth. The driving component includes a driving gear, the driving gear meshing with the first locking tooth and the second locking tooth respectively.

The invention discloses an abdominal cavity operation puncture outfit which comprises a puncture outfit body and further comprises two arc-shaped fixing plates, and the two arc-shaped fixing plates are symmetrically distributed on the two sides of the puncture outfit body. The pedal is treaded by feet, air in the arc-shaped groove is extracted through the air extraction assembly, so that the arc-shaped fixing plates suck the abdominal skin of a patient, the abdominal skin of the patient can be driven to move upwards to cater to the puncture outfit body by pulling the handle with the hand, and meanwhile an operator presses the pressing plate and drives the two arc-shaped fixing plates to deflect and open through the auxiliary assembly. Meanwhile, a puncture opening of the patient is dragged and exposed, so that puncture operation of an operator is facilitated, meanwhile, the linkage assembly is used for driving the two arc-shaped plates to be closed to form a guide channel to guide the puncture outfit body, and then the puncture precision is improved; therefore, the distance between the abdominal skin and the viscera of the patient is increased, the puncture risk is reduced, and meanwhile the operation pressure of medical staff is reduced.

The utility model relates to the technical field of insulating rods, and discloses a night lighting remote video insulating rod comprising an electric push rod, the right side of the electric push rod is provided with an insulating rod, and the outer sides of the electric push rod and the insulating rod are provided with a monitoring assembly which is used for assisting remote operation. A supporting assembly is arranged on the left side of the electric push rod. According to the night lighting remote video insulating rod, the supporting assembly is installed, a limiting frame is used for providing the overturning adjusting capacity for an overturning support on the inner side, meanwhile, a rotating rod on the front face can conduct vertical rotating control, and the insulating rod can be arranged on the outer side of a telegraph pole or the outer side of each support rod through a tightening belt on the front face; the tightening effect can be achieved by adjusting the buckle, a certain degree of supporting effect can be provided through the supporting assembly, and therefore the pressure borne by the hands of a worker is reduced, and the working pressure of the worker is reduced only by manually adjusting the angle.

This invention belongs to the field of wet electronic chemical purification, specifically relating to a membrane chromatography filter membrane for removing charged ions from liquids and its preparation method, including the following steps: S1, preparing casting solutions: preparing positively charged layer casting solutions, neutral layer casting solutions, and negatively charged layer casting solutions separately; S2, using a three-layer die to sequentially extrude the positively charged layer casting solutions, neutral layer casting solutions, and negatively charged layer casting solutions onto a polyester film; S3, exposing the casting solutions under set temperature, humidity, and airflow conditions to allow for initial phase separation; S4, immersing the coated film in a pure water coagulation bath to complete phase separation and solidification; S5, rinsing, drying, and then winding to obtain the membrane chromatography filter membrane. By designing a special three-layer composite structure with a "positively charged layer-neutral layer-negative layer," the filter membrane can simultaneously adsorb anions and cations in the solution during a single filtration process, overcoming the limitation of traditional single-charge membranes that can only remove one type of ion, thus improving purification efficiency.

This invention discloses a low-energy-consumption mixed C4 alkane-olefin separation device, comprising: a C4 evaporator or tank, an extractive distillation column for separating alkane and olefin, and a stripping column. The inlet of the extractive distillation column is connected to the top outlet of the C4 evaporator or tank, the stripping column is connected to the bottom of the extractive distillation column, and the top of the stripping column is connected to the inlet of a C4 olefin reflux tank. A chilled water system is also connected between the top of the stripping column and the inlet of the C4 olefin reflux tank to cool the C4 olefins before reflux. By installing a chilled water system at the top of the stripping column, this invention allows for lower-pressure operation within the stripping column, reducing overall energy consumption, optimizing the process flow, and simplifying the number of equipment. Furthermore, the separation effect of olefins cooled to low temperatures by chilled water under low pressure is better, improving the recovery rate and purity of C4 alkane and C4 olefin.

The utility model provides a kind of bolt forming device, it is related to bolt processing technical field, the bolt forming device includes installation platform, forming part, placing part, and placing part is used to place the cylindrical blank for processing bolt, placing part is set on installation platform and can be moved along installation platform;Power part, power part is set on installation platform, and can control placing part to move;Discharge part, discharge part is set on forming part, and discharge part is used to guide the bolt formed to the material guide inclined plane of installation platform, this kind of bolt forming device when using, staff only needs to place cylindrical blank into placing groove and bottom groove, when cylindrical blank is processed into bolt blank, by the baffle and slot for setting, bolt blank after completing processing can be directly transferred to material guide inclined plane, the transfer of bolt blank does not need manual participation of staff, only needs to be responsible for the feeding of cylindrical blank, reduce operating pressure, and use effect is good.

The utility model discloses a light hydrocarbon conversion product separation device which comprises an absorption tower, an oil-gas separation tank, a desorption tower, a stabilization tower, a C5 / C6 fractionating tower and a compressor system, an inlet of the compressor system is connected with a light hydrocarbon conversion gas-phase reaction product inlet pipeline, the upper part of the absorption tower is connected with a light hydrocarbon conversion liquid-phase reaction product inlet pipeline, the top of the absorption tower is connected with an absorption tower top gas discharge pipeline, the absorption tower, the oil-gas separation tank, the desorption tower, the stabilization tower and the C5 / C6 fractionating tower are sequentially connected, and the top of the stabilization tower is connected with a propane discharge pipeline. A pipeline at the bottom of the stabilizing tower is divided into two paths, one path is connected with the upper part of the absorption tower, and the other path is connected with a C7 + fraction discharge pipeline; the top of the C5 / C6 fractionating tower is connected with a C4 / C5 fraction discharge pipeline, and the bottom of the liquefaction separating tower is connected with a C6 fraction discharge pipeline. The device not only reduces the construction cost and the energy consumption, but also can reduce the processing cost, increase the liquid yield and improve the aromatic hydrocarbon recovery rate.

The invention provides a gas sampling device and a sampling method, and relates to the technical field of gas sampling. The sampling device comprises a gas collection assembly provided with a gas collection chamber, a partition body arranged in the gas collection chamber and a drain valve, the gas collection chamber is provided with a gas inlet and a liquid outlet, the gas collection chamber is filled with inert liquid, and the volume of the gas collection chamber is larger than that of gas to be sampled; the partition bodies can divide the gas collection cavity into a plurality of sub-cavities; a gap is formed between the partition body and the inner wall of the bottom of the gas collection chamber, and every two adjacent sub-chambers are communicated through the gap; each sub-chamber is provided with a gas taking port which can be communicated with the outside; and the liquid discharge valve is arranged at the liquid discharge port of the gas collection chamber and is used for controlling the opening and closing of the liquid discharge port. The sampling device is used for providing multiple sampling opportunities, reducing the operation pressure of workers and improving the success rate of sampling work.

The present invention discloses a device and method for separating dimethyl carbonate and methanol, wherein the retentate outlet of a first pervaporation membrane assembly is connected to the inlet of a second pervaporation membrane assembly, the permeate outlet of the first pervaporation membrane assembly is connected to the inlet of a high-pressure distillation tower, the retentate outlet of the second pervaporation membrane assembly is connected to the inlet of an atmospheric distillation tower, and the top fraction outlet of the high-pressure distillation tower is connected to the inlet of the atmospheric distillation tower. The present invention has the advantages of using a method combining two distillation towers and a membrane system for secondary separation to purify dimethyl carbonate and methanol, with low energy consumption, safety, environmental protection, no pollution, and clean production.

The utility model provides a reaction device for continuously preparing 3, 5-dichloro-2-pentanone, which belongs to the technical field of chemical production and comprises a reaction kettle, a raw material ester intermediate storage tank, a raw material acid intermediate storage tank, a primary water intermediate storage tank, a catalyst intermediate storage tank, a fan, a heater, a cooler, a water segregator, a diluted hydrochloric acid receiving tank and a product receiving tank. The reaction kettle is provided with a heating part; the raw material ester intermediate storage tank, the raw material acid intermediate storage tank, the primary water intermediate storage tank and the catalyst intermediate storage tank are all connected with the reaction kettle; the fan is connected with the reaction kettle through the heater; the condenser is communicated with the reaction kettle; a feed port of the water segregator is connected with a discharge port of the condenser, and a top reflux port is connected with a reflux port at the top of the reaction kettle; the diluted hydrochloric acid receiving tank is connected with a discharge port at the bottom of the reaction kettle; and the product receiving tank is connected with a discharge port of the water segregator. According to the device, intermittent reaction is converted into continuous production, the recovery rate of a product is increased, the contact time of the product and acid is shortened, and tar is eliminated or reduced.

The application relates to the field of groundwater pollution remediation, in particular to an oxidation-reduction coupled permeable reaction wall and an evaluation method thereof. The oxidation-reduction coupled permeable reaction wall comprises a cover plate, a cement outer wall body, water stop plates, a reduction chamber, an oxidation chamber and a mixing chamber. The three water stop plates are alternately and vertically fixed on the cement outer wall body and the top cover plate respectively, and the reduction chamber, the oxidation chamber and the mixing chamber are separated by the water stop plates. The reduction chamber and the mixing chamber are communicated by an upper pipeline, and the oxidation chamber and the mixing chamber are communicated by a lower pipeline. The reduction chamber is sequentially provided with a detachable coarse quartz sand plate, a fine quartz sand plate and an active reaction plate from bottom to top. Through the synergistic effect of reduction-oxidation-adsorption, the oxidation-reduction coupled permeable reaction wall can effectively deal with the composite contaminated groundwater to realize complete mineralization of organic pollutants, and has the advantages of high remediation efficiency and strong applicability.

The invention discloses a live broadcast interaction method and apparatus, and a live broadcast device. The live broadcast interaction method comprises the following steps: collecting multimedia information of a live broadcast video in a live broadcast process by live broadcast equipment; understanding the multimedia information by using a multi-modal model in the live broadcast equipment to generate an interaction candidate operation list; and the live broadcast equipment distributes the interaction candidate operation list to an anchor live broadcast network, so that audiences and an anchor can carry out live broadcast interaction. According to the method and the device, the multimedia information in the live broadcast video in the live broadcast process is acquired in real time, and the multimedia information is understood and analyzed by using the multi-modal model, so that the interactive candidate operation list highly related to the multimedia information in the live broadcast is dynamically generated in real time; therefore, the anchor and the audience can carry out live broadcast interaction based on the interaction candidate operation list, and the convenience and the interaction effect of live broadcast interaction are improved.

The utility model discloses light hydrocarbon conversion product separation equipment which comprises an absorption tower, an oil-gas separation tank, a desorption tower, a stabilization tower, a liquefied gas fractionating tower and a compressor system, an inlet of the compressor system is connected with a gas-phase reaction product inlet pipeline, the upper part of the absorption tower is connected with a liquid-phase reaction product inlet pipeline, the top of the absorption tower is connected with an absorption tower top gas discharge pipeline, the absorption tower, the oil-gas separation tank, the desorption tower, the stabilization tower and the liquefied gas fractionating tower are sequentially connected, and the top of the stabilization tower is connected with a propane discharge pipeline; a pipeline at the bottom of the stabilizing tower is divided into two paths, one path is connected with the upper part of the absorption tower, and the other path is connected with a C7 + fraction discharge pipeline; the upper part of the stabilizer is connected with the liquefied gas fractionating tower through a pipeline, and the lower part is connected with a C6 fraction discharge pipeline; and the bottom of the liquefied gas fractionating tower is connected with a C5 fraction discharge pipeline. The device not only reduces the construction cost and the energy consumption, but also can reduce the processing cost, increase the liquid yield and improve the aromatic hydrocarbon recovery rate.

The invention discloses crystal rope lifting equipment for a single crystal furnace, which comprises a chassis and a box body, the box body is fixedly connected to the chassis, a cavity communicated along the vertical direction is formed in the box body, a wire winding mechanism for winding a crystal rope and a traction mechanism for pulling the crystal rope towards the outside of the box body are respectively arranged in the cavity, and the traction mechanism is used for pulling the crystal rope towards the outside of the box body. One side of the box body is provided with a window communicated with the cavity, and the window is right opposite to the wire winding mechanism and the traction mechanism. The integrated box body supporting frame structure is adopted, the wire winding mechanism and the traction mechanism are jointly arranged in the box body, connecting points and connecting parts of the whole device are greatly reduced, the integrity and strength of the structure are improved, and the wire winding mechanism and the traction mechanism are jointly arranged, so that only a window needs to be formed in the side of the box body, and the wire winding mechanism and the traction mechanism are combined. And the arrangement work of the crystal rope towards the inside of the equipment can be realized without dismounting any wire winding mechanism or traction mechanism, so that the operation difficulty and pressure of workers are greatly reduced.

The utility model discloses a fractionating device for light hydrocarbon conversion products. The fractionating device comprises an absorption tower, an oil-gas separation tank, a desorption tower, a stabilization tower, a liquefied gas fractionating tower and a compressor system, an inlet of the compressor system is connected with a light hydrocarbon conversion gas phase reaction product inlet pipeline, the upper portion of the absorption tower is connected with a light hydrocarbon conversion liquid phase reaction product inlet pipeline, the top of the absorption tower is connected with an absorption tower top gas discharge pipeline, and the absorption tower, the oil-gas separation tank, the desorption tower, the stabilization tower and the liquefied gas fractionating tower are sequentially connected. A pipeline at the bottom of the stabilizing tower is divided into two paths, one path is connected with the upper part of the absorption tower, and the other path is connected with a C6 + fraction discharge pipeline; the top of the liquefied gas fractionating tower is connected with a liquefied gas discharge pipeline, and the bottom is connected with a C5 fraction discharge pipeline. The device not only reduces the construction cost and the energy consumption, but also can reduce the processing cost, increase the liquid yield and improve the aromatic hydrocarbon recovery rate.

The application provides a polyamide thin-layer composite membrane, a preparation method and application thereof. The method comprises the following steps: mixing a base film with an aqueous phase solution, so that the aqueous phase solution is attached to the base film to obtain a base film with the aqueous phase solution attached thereto; mixing the base film with the aqueous phase solution attached thereto with an oil phase solution containing an oil phase monomer, and performing an interfacial polymerization reaction; the amino group on the piperazine and the acyl chloride group of the oil phase monomer perform the interfacial polymerization reaction to form an amide bond, a polyamide network is formed, a carboxyl polymer is fixed in the polyamide network, a polyamide composite membrane containing the carboxyl polymer is obtained, the polyamide composite membrane is mixed with an aqueous solution containing a soluble divalent cation salt to perform structure reorganization, and a polyamide thin-layer composite membrane is obtained. The composite membrane provided by the application can improve the divalent cation permeation capacity while maintaining high retention performance for divalent anions, thereby being beneficial to relieving membrane surface fouling and improving the screening efficiency of monovalent and divalent anions, and the preparation process is simple and easy for industrial production.