16results about How to "Improve liquefaction efficiency" patented technology

The invention discloses a vehicle-mounted mobile device capable of being remotely controlled and recycling and emptying natural gas by using liquid nitrogen cold energy. The system comprises a liquid nitrogen storage tank, a centrifugal pump, a throttle valve, a plate-fin heat exchanger, a temperature controller and an LNG storage tank, carrying out liquefaction treatment on the vented natural gas by adopting low-temperature liquid nitrogen; liquid nitrogen stored in the liquid nitrogen storage tank is pressurized by the pump and enters the heat exchanger to exchange heat with recycled natural gas, the liquid nitrogen is discharged into air after losing cold energy, and the liquefied natural gas enters the LNG storage tank through the throttling valve to be temporarily stored and then can be injected into an LNG pipeline or directly sold. The process is simple, an expansion machine is not needed, the equipment investment cost is low, the size is small, and vehicle-mounted movement can be achieved; remote dynamic control can be realized, and workers do not need to stay beside the device for a long time; the pressure range of the recovered and vented natural gas comprises but is not limited to 0.2-4 MPa, the liquefaction efficiency is stable, and the minimum liquefaction rate is 98.2%; the device is suitable for gas compression stations and gas transmission stations which are small in emptying amount, large in gas pressure fluctuation range, scattered in gas source distribution, high in methane content and free of operations such as light hydrocarbon removal.

The invention discloses a brewing method of foaming sake, which is characterized by comprising the following steps: raw material treatment, liquefaction, saccharification, primary adsorption, secondary adsorption, primary sterilization, fermentation, sealed fermentation and secondary sterilization. The liquefaction comprises the following steps: mixing glutinous rice flour, beta-cyclodextrin and water, stirring at room temperature for 20-30 minutes, adding high-temperature-resistant alpha-amylase, and carrying out spray liquefaction; the primary adsorption comprises the following steps: adding activated carbon and beta-cyclodextrin into the saccharification product, stirring for 30-40 minutes at room temperature, then standing for 5-6 hours at room temperature, and filtering; the secondary adsorption comprises the following steps: adding mixed activated carbon into the primary adsorption liquid, stirring for 30-40 minutes at room temperature, then standing for 7-8 hours at room temperature, and filtering. The brewed foaming sake is high in light transmittance, good in taste, rich in fragrance and short in fermentation time, and does not need to be stored at low temperature.

The utility model discloses a cleaning device and a base station thereof. The cleaning device comprises the base station and a cleaning instrument. The base station is used for the cleaning device and comprises a main body and a refrigerating system. Wherein the main body is provided with a mounting cavity and a first conveying channel; the refrigerating system comprises an evaporator, a condenser, an exhaust pipeline and a fan, the evaporator and the condenser are arranged in the mounting cavity side by side in the direction perpendicular to the height of the base station, the exhaust pipeline is arranged on the side, away from the evaporator, of the condenser and extends to the outer surface of the body, and the fan is arranged in the exhaust pipeline. The first conveying channel is used for conveying steam to the evaporator. According to the cleaning device and the base station thereof, the problems that in the prior art, the overall size of a base station is too large, and the space utilization rate of the base station is low are solved.

The application discloses an LNG filling station BOG recovery system and a working method thereof, and belongs to the technical field of LNG filling station BOG recovery system.The LNG filling station BOG recovery system comprises a BOG liquefaction recovery line, an LNG unloading line and an LNG filling process, wherein a liquid phase port of an LNG tank car is connected with an LNG immersion liquid pump, a gas phase port of the LNG tank car is connected with an LNG booster gasifier, and the BOG recovery system is connected with an LNG storage tank through pipelines at both ends; two turbine expansion and compression integrated machines are connected in parallel in the recovery system; the LNG storage tank is connected with an LNG filling mechanism through a pump, a valve and the like to form a loop; and a plurality of adjusting valves are arranged on each process pipeline in the system and used for safety control and switching of a working line.The working method of the system is also disclosed.The LNG filling station BOG recovery system has the advantages of recovery of unstable BOG generated under various operating conditions of the LNG filling station, fast cold start in a liquefaction process, safety and reliability, long-term economy and the like.

The utility model relates to the field of syrup production, and discloses a starch liquefying device for syrup production, which comprises a filtering part, an adjusting part and a liquefying part, the filtering part is fixedly arranged in the liquefying part, and the adjusting part is movably arranged at the lower part in the liquefying part; the filtering component comprises air cylinders and a filtering net, the air cylinders are symmetrically and fixedly connected to the edge of the bottom face of the filtering net, a driving motor is fixedly installed on the edge of the periphery of the filtering net, and one end of the driving motor is fixedly connected with a stirring arc rod. The starch liquefaction efficiency in the syrup production process can be improved, the labor intensity of workers is reduced, and the use requirements of people are met.

The utility model relates to the field of chemical production, in particular to a titanium tetrachloride cold recycling device which comprises a cold titanium tetrachloride storage tank, the device further comprises an atomizing spray head and a spray nozzle, the upper end of the cold titanium tetrachloride storage tank is fixedly connected with a supporting frame, the upper end of the supporting frame is fixedly connected with a second-stage condenser, a direct cooler and a third-stage condenser, and the inner wall of the direct cooler is fixedly connected with an annular flow dividing pipe. According to the utility model, through the use of the atomizing spray head and the spray nozzle, spraying is carried out from different angles and positions, mixed gas is further cooled, and part of gas is liquefied and flows into the cold titanium tetrachloride storage tank along the storage hopper, so that the cooling area and the uniformity are increased, and the liquefaction efficiency and the cooling effect are improved; a gas-liquid mixture is fed into a third-stage condenser for deep cooling, residual titanium tetrachloride gas is completely liquefied and flows into a cold titanium tetrachloride storage tank, liquid titanium tetrachloride in the storage tank is pressurized through a circulating system and then is fed back to a direct cooler to be used as a cooling medium, and the cooling and liquefying efficiency is improved.

The present application relates to the field of preparation of bio-based multi-level pore carbon material and environmental governance, in particular to a kind of bio-based three-dimensional multi-level pore carbon material and its preparation method and application.The preparation method of bio-based three-dimensional multi-level pore carbon material of the present application includes the following steps: biomass raw material and phenol, composite acid catalyst are mixed and reacted 1, to obtain bio-based liquefied material;Bio-based liquefied material is mixed with composite base catalyst and polyformaldehyde, and then reacted 2, to obtain bio-based liquefied resin;Bio-based liquefied resin is mixed with surfactant, foaming agent, metal-based DES and curing agent, and then foamed, to obtain carbonization precursor;The carbonization precursor is subjected to carbonization treatment, and then ultrasonic water washing is carried out, to obtain bio-based three-dimensional multi-level pore carbon material.The bio-based three-dimensional multi-level pore carbon material prepared by the method of the present application has uniform structure, contains micron-nanometer multi-level pore structure, and has high adsorption performance.

The utility model discloses an automatic cooling and recycling system for high-temperature brine, which relates to the technical field of salt manufacturing equipment and comprises a base and a cooling component. According to the automatic cooling and recycling system for the high-temperature brine, through the arrangement of the cooling assembly, during salt manufacturing, the evaporator heats a product under the action of the external heating jacket and generates the brine vapor, the impeller is located in the machine shell to rotate under the driving of the motor, and the brine vapor in the evaporator is sucked in through the suction inlet and discharged through the outlet; the brine vapor is distributed into the condensation branch pipes which are distributed in an annular array and are immersed in the cooling liquid, so that the contact area between the brine vapor and the cooling liquid in the heat exchange cavity is increased, the heat exchange stroke is shortened, and the liquefaction efficiency is improved; the cooling liquid in the heat exchange cavity is connected with the low-temperature cooling circulating pump under the action of the cooling liquid circulating inlets and outlets which are distributed in an up-down staggered mode, low-temperature circulation of the cooling liquid is achieved, heat in the brine vapor is rapidly taken away, and the liquefaction efficiency of the brine vapor is guaranteed.

The present invention discloses an LNG storage device with a recovery function, which relates to the technical field of LNG storage, and comprises: a sealing seat, on which an outer tank body is fixed; an inner tank body, which is fixed on the sealing seat and located inside the outer tank body, and a sealing cover is provided on the upper part of the inner tank body, and a through groove is opened in the middle of the sealing cover; a micro-deformable plate, which is sealed and connected in the through groove by a sealing elastic ring; a downward pressure buffer component, which is connected to the inner top of the outer tank body and is used to provide downward pressure buffer for the micro-deformable plate; a suction pipe, an air suction pipe, an air suction pump, a first pipe body, a heat exchange pipe, a second pipe body, a refrigeration component, and a liquid return pipe, which are connected in series in sequence and form a loop, wherein the suction pipe is located at the inner top of the inner tank body, and the heat exchange pipe is located at the inner bottom of the inner tank body; by recovering and liquefying BOG, the reuse of LNG resources is realized, and the waste of resources is reduced.

The invention discloses a method for using a high-temperature forging manipulator, which relates to the technical field of manipulators and comprises a manipulator arm, wherein the manipulator arm is connected to a clamping seat, and the clamping seat is connected to a first clamping plate and a second clamping plate through a driving member, wherein an air suction port, a suction pump and a condenser are arranged in the clamping seat, a water channel is arranged at the water outlet end of the condenser in the clamping seat, and a leakage hole is arranged at the bottom of the water channel; gears are arranged on the first clamping plate and the second clamping plate, the gears are meshed with a first rack, and a first flow channel is arranged in the first rack; a first telescopic device is arranged in the first clamping plate; an air suction port, a suction pump and a condenser are arranged on the clamping seat to absorb flue gas to avoid environmental pollution or dryness in the workshop caused by the flue gas, and the flue gas is condensed into water to cool the high-temperature forging; the high-temperature forging can be clamped and supported by arranging the gears and the first telescopic device; in addition, the gears can stir the coolant in the coolant to dissipate the heat, and can scratch the high-temperature forging to detect the surface hardness quality of the high-temperature forging.

This application relates to a cascade refrigeration system and refrigeration equipment, belonging to the field of refrigeration technology, and aims to improve the refrigeration response speed of the low-temperature refrigeration circuit of the cascade refrigeration system upon startup. The cascade refrigeration system includes an intermediate heat exchanger, a high-temperature refrigeration circuit, a low-temperature refrigeration circuit, and a bypass circuit. The high-temperature refrigeration circuit includes a first compressor, a first condenser, a first expansion valve, and an intermediate heat exchanger connected in sequence, with the intermediate heat exchanger serving as the evaporator side in the high-temperature refrigeration circuit. The low-temperature refrigeration circuit includes a second compressor, an intermediate heat exchanger, a second expansion valve, and an evaporator connected in sequence, with the intermediate heat exchanger serving as the condenser side in the low-temperature refrigeration circuit. The bypass circuit is disposed within the low-temperature refrigeration circuit. The bypass circuit includes a circulation pump and is configured such that: before the second compressor starts, the high-temperature refrigeration circuit starts, and the bypass circuit is activated for a first preset time to drive the refrigerant to circulate along the low-temperature refrigeration circuit.

The application provides a natural gas residual energy recycling system, which comprises a cold energy unit, a liquefaction unit and at least one cold exchange unit, wherein the cold energy unit comprises a cold energy pipeline and at least one cold device connected to the cold energy pipeline, the cold energy pipeline is connected between a first natural gas pipeline and a second natural gas pipeline, the gas pressure in the first natural gas pipeline is greater than that in the second natural gas pipeline; the liquefaction unit comprises a liquefaction pipeline and a liquid storage tank connected to each other; and the at least one cold exchange unit is connected between the cold energy pipeline and the liquefaction pipeline. The cold energy unit, the liquefaction unit and the cold exchange unit solve the problems of low residual energy recycling efficiency and low residual energy use efficiency in the field of natural gas transmission, and also solve the problem of low types of recycled energy in the natural gas residual energy recycling system.

The utility model discloses a degreasing device of a vacuum heat treatment furnace, belongs to the technical field of sintering equipment, and aims to solve the problem of how to improve the liquefaction efficiency of high-temperature gas. The vacuum heat treatment furnace degreasing device comprises a degreasing box, an air inlet pipe, a first degreasing transverse pipe, a cooling pipe, a degreasing vertical pipe and an air outlet pipe. The degreasing box is provided with a cooling cavity, a liquid discharge pipe, an air inlet guide pipe and an air outlet guide pipe; the liquid discharge pipe, the air inlet guide pipe and the air outlet guide pipe are communicated with the cooling cavity; the other end of the first degreasing transverse pipe is connected with an air inlet guide pipe of the degreasing box; the cooling pipe is located in the cooling cavity, the first end of the cooling pipe is connected with the inner wall of the degreasing box, the second end of the cooling pipe linearly extends in the length direction of the cooling cavity and is provided with an opening, the cooling pipe divides the cooling cavity into two cavities, and the cavities in the cooling pipe communicate with the air outlet guide pipe. The bottom end of the degreasing vertical pipe is connected with the air outlet guide pipe of the degreasing box, the top end of the degreasing vertical pipe is connected with the air outlet pipe, and a Pall ring is arranged on the inner wall of the degreasing vertical pipe.

The utility model provides a flash steam recycling device in environment-friendly corrugated board production. The flash steam recycling device in the environment-friendly corrugated board production comprises a cylinder, an air inlet pipe is fixedly installed on the side wall of the cylinder, a water drainage pipe and a plurality of sets of supporting legs are fixedly installed at the bottom of the cylinder, a partition plate is fixedly installed on the inner wall of the upper end of the cylinder, and a mounting plate is fixedly installed at the top of the cylinder. According to the flash steam recycling device in the environment-friendly corrugated board production, the output end of the motor drives the condensing device to rotate at a constant speed through the circular plate and the connecting rod; the output end of the motor enables the rotating shaft to continuously drive the fan blades to rotate through the linkage effect of the belt pulley II, the belt pulley I and the belt while the flash steam from the air inlet pipe is in full contact with the outer wall of the condensing device, so that the flash steam from the air inlet pipe is uniformly blown into the cylinder; contact of flash steam with the inner wall of the cylinder and the outer wall of the condensing device is increased, and liquefaction efficiency is improved.

The vehicle-mounted scattered natural gas liquefaction system comprises a carrier, a storage tank, a low-temperature heat exchanger and a gas-liquid separator, and a fluid pretreatment device is arranged at an inlet of the low-temperature heat exchanger; the fluid pretreatment device comprises a buffering flow stabilizing mechanism, a throttling adjusting mechanism and a flow equalizing distribution assembly, and a heat exchange core body is fixedly arranged above the flow equalizing distribution assembly; the buffering flow stabilizing mechanism comprises a buffer, a turbine rotor is arranged in the buffer, the throttling adjusting mechanism is a Venturi tube, a floating body adjusting component is arranged on the throat portion of the Venturi tube, the flow equalizing distribution assembly comprises a conical distributor and a damping flow equalizing plate, and a plurality of flow dividing holes are formed in the conical surface of the conical distributor. And a plurality of bending holes are formed in the damping flow equalizing plate. By arranging the buffering and flow stabilizing mechanism, the throttling adjusting mechanism and the flow equalizing and distributing assembly, flow equalizing and stabilizing of fluid entering the heat exchanger are achieved.

The application discloses a low-temperature ethylene storage system suitable for total reserves less than or equal to 500 cubic meters, which comprises a low-temperature ethylene storage tank, a variable-frequency ethylene conveying pump, a liquid-phase ethylene distributor and an ice machine set. A high-temperature liquid-phase ethylene outlet is arranged at the bottom of the low-temperature ethylene storage tank and is communicated with a pipeline of the variable-frequency ethylene conveying pump. A discharge port of the variable-frequency ethylene conveying pump is communicated with a feeding port pipeline of the ice machine set. The liquid-phase ethylene distributor is arranged in the top of the low-temperature ethylene storage tank and is communicated with a liquid outlet pipeline of the ice machine set. The device can replace a diaphragm compressor and the ice machine set to realize the same cooling loss effect, effectively reduce production cost, improve production safety and reduce production energy consumption.