115results about How to "Avoid coking" patented technology

The utility model belongs to the technical field of ash processing, and discloses an ash bucket device and a boiler system.The ash bucket device comprises an ash bucket body, the ash bucket body comprises an inner shell, an outer shell and a guide plate, the inner shell is provided with a conveying channel, ash can flow through the conveying channel, the outer shell is arranged on the side, away from the conveying channel, of the inner shell in a sleeving mode, and the outer shell and the inner shell are arranged at intervals; a cavity is formed between the outer shell and the inner shell and surrounds the inner shell, air circulates in the cavity and is used for absorbing heat of ash in the conveying channel, the guide plate is arranged in the cavity and spirally surrounds the inner shell in the direction parallel to the circulating direction of the ash in the conveying channel, and the air can flow along the guide plate. According to the ash hopper device, ash in the conveying channel can be uniformly cooled, and the coking probability of the ash in the conveying process can be greatly reduced.

The utility model provides an automatic blanching device which comprises a groove body, and a containing space is formed in the groove body. The combustion heater is arranged in the accommodating space; a containing space is formed in the blanching, boiling and fishing pot, a stirring mechanism is rotationally arranged in the containing space, and a plurality of communicating open holes enabling the containing space to communicate with the containing space are formed in the blanching, boiling and fishing pot; the boiling and fishing pot is rotationally connected with the tank body, the boiling and fishing pot is located in the containing space in a boiling state, and the combustion heater is located below the boiling and fishing pot. The automatic sea cucumber blanching device has the advantages that automatic sea cucumber blanching can be achieved, blanching efficiency is improved, blanching cost is greatly reduced, and the automatic sea cucumber blanching device is small in overall size, easy, safe and convenient to operate and suitable for being used by a large number of farmers and manufacturers.

The invention provides an annular vortex-pre-evaporation combustion chamber which comprises a cartridge receiver assembly, a flame tube assembly, an oil supply assembly and an evaporation pipe, and an air inlet is formed in the cartridge receiver assembly; the flame tube assembly is communicated with an air inlet of the cartridge receiver assembly; an ignition electric nozzle is arranged in the flame tube assembly; a ring vortex structure is formed in the flame tube assembly; the oil supply assembly is arranged on the casing assembly; the inlet end of the evaporation pipe communicates with the outlet end of the oil supply assembly, and the outlet end of the evaporation pipe communicates with the interior of the flame tube assembly. The evaporation pipe is suitable for evaporating fuel oil and mixing with air to form an oil-gas mixture; air entering from the air inlet and an oil-gas mixture form mixed airflow in the flame tube assembly, and the mixed airflow forms an annular vortex field when flowing on the annular vortex structure. And under the action of the annular vortex field, the mixed airflow is in multiple contact with the ignition electric nozzle. According to the combustion chamber, through the arrangement of the structure, the probability that an oil-gas mixture is ignited can be greatly increased, and the ignition performance and the combustion efficiency of the combustion chamber are improved.

The invention relates to the technical field of propylene dimerization, in particular to a method and device for preparing 4-methyl-1-pentene through propylene dimerization, and the method comprises the following steps: (1) pretreating a raw material containing propylene and a coking inhibitor to obtain a pretreated raw material; (2) in a non-oxidizing atmosphere, contacting the pretreated raw materials with a catalyst and carrying out dimerization reaction to obtain reaction materials which are divided into a part of reaction materials and a residual part of reaction materials; (3) carrying out rectification separation on the rest reaction material to obtain 4-methyl-1-pentene; wherein the partial reaction materials are recycled for the dimerization reaction after being subjected to heat removal. According to the method provided by the invention, the multimerization reaction is avoided by regulating and controlling the temperature of the dimerization reaction, so that the selectivity of the 4-methyl-1-pentene and the activity of the catalyst are improved.

The utility model relates to the technical field of waste heat recovery, in particular to a coke oven flue gas waste heat efficient utilization device which comprises a water tank, a filter tank and a smoke return pipe, a water inlet pipe and a steam pipe are arranged at the upper end of the water tank, a flue is arranged in the water tank, heat exchange fins distributed in an array mode are installed on the inner wall of the flue, and the filter tank is arranged in the water tank. A second smoke inlet pipe is installed at one side end of the filter box, the tail end of the second smoke inlet pipe is installed at the side end of the water tank, the second smoke inlet pipe is communicated with the flue, an installation opening is formed in the front end of the filter box, a cover plate is installed at the position, located at the installation opening, of the front end of the filter box, and a filter plate is installed at the rear end of the cover plate. A dust scraping plate is mounted at the tail end of the filter plate, the smoke return pipe is mounted at the lower end of the water tank and communicated with the flue, and a recovery pipe is mounted at the tail end of the smoke return pipe. The coke oven flue gas waste heat utilization device has the advantages of being capable of filtering dust, efficiently utilizing coke oven flue gas waste heat and preventing waste of flue gas heat.

The invention provides a method for synthesizing 6-aminocapronitrile from caprolactam. The method comprises the following steps: a gasification device is sequentially provided with a uniform distribution part, an efficient dispersion part, a high-temperature gasification part and an in-situ separation part from top to bottom; liquid-phase caprolactam is injected from the top end of the gasification device, and ammonia gas is injected through the efficient dispersion part; in the efficient dispersion part, liquid-phase caprolactam is broken in a first circular tube nest under the shearing action of gravity and ammonia gas to form liquid drops, and after high-temperature gasification, a gas phase is output from the side part of the gasification device, then enters the reactor filled with the monolithic catalyst from the bottom of the reactor, reacts through the monolithic catalyst and is output from the top of the reactor. According to the invention, caprolactam can be efficiently gasified, coking is not easy to generate, the retention time of a gas-phase reactant in the reactor can be accurately controlled, the reaction efficiency is greatly improved, the discharge amount of wastes in the production process of hexamethylenediamine is reduced, the cost is reduced, the economic benefit is improved, and a guarantee is provided for green, environment-friendly and safe production.

The invention relates to the technical field of propylene dimerization, in particular to a method and device for preparing 4-methyl-1-pentene through propylene dimerization, and the method comprises the following steps: pretreating a raw material containing propylene, a diluent and a coking inhibitor, and carrying out dimerization reaction on the obtained pretreated raw material and a catalyst in a non-oxidizing atmosphere to obtain 4-methyl-1-pentene, and carrying out rectification separation on the obtained reaction material to obtain the 4-methyl-1-pentene. According to the method provided by the invention, the selectivity of 4M1P is effectively improved, and the catalytic activity and the one-way service life of the catalyst are improved.

The invention discloses a turbulent flow assembly. The turbulent flow assembly comprises a rotating shaft, and at least one group of stirring wheels and helical blades which are arranged on the rotating shaft and have opposite rotating directions. According to the turbulent flow assembly, the stirring wheels and the spiral blades which are opposite in rotating direction are arranged on the rotating shaft, the axial turbulent flow effect is multiplied through the stirring wheels and the spiral blades which are opposite in rotating direction, the turbulent flow effect and quality can be greatly improved through the blades which are opposite in rotating direction, and then the coking phenomenon is thoroughly avoided; and the phenomenon of violent rolling of steering oil in the oil tank can be avoided.

The utility model relates to an oil-gas separator assembly which comprises a separator outer barrel, a flange barrel cover and an oil-gas filtering assembly arranged in the separator outer barrel, the oil-gas filtering assembly comprises an inner barrel with a barrel opening provided with a flange, and the inner barrel is connected with the separator outer barrel and the flange barrel cover through the flange; a plurality of oil separation core mounting seats for mounting oil separation cores are arranged on a bottom plate of the inner barrel, the oil separation cores are respectively mounted on the oil separation core mounting seats, and inlets of the oil separation cores face downwards and are communicated with the interior of the separator outer barrel; a connecting through hole is further formed in the edge of a bottom plate of the inner barrel, a sunken oil gathering pipe is connected to the connecting through hole, an oil suction pipe is further arranged on the flange barrel cover in a penetrating mode, the inner end of the oil suction pipe extends into the bottom of the oil gathering pipe, and the outer end of the oil suction pipe is sequentially connected with a first one-way valve and an oil return pipe so as to be connected with a vacuum pump main machine through the oil return pipe. The oil-gas separator assembly has the advantages of being convenient to maintain and clean, good in oil-gas separation effect, long in service life, low in maintenance cost and the like.

The present invention relates to the technical field of burners, and in particular to a self-sustaining stable combustion burner with an improved inner cavity structure, comprising: a combustion tube, whose outlet end is a flame outlet, and whose inlet end is connected to a plasma generator and a powder inlet; an outer tube, which is sleeved between the outside of the combustion tube and the combustion tube to form a closed return air chamber; the inner cavity structure of the combustion tube is a combustion chamber formed by a reducing neck portion at the inlet end being sequentially connected to a reducing guide portion, a middle cylinder portion, a tempering reducing connection portion, and an outlet end, a tempering guide portion extending along an axial direction is arranged near the top of the inner cavity of the middle cylinder portion, and the combustion tube is provided with a return air duct for connecting the return air chamber and the combustion chamber, the return air duct is located on the tempering reducing connection portion and is located near the top of the middle cylinder portion, and is used to solve the technical problems in the prior art that the continuous operation of the burner needs to rely on a plasma igniter, resulting in low combustion efficiency and easy coking and difficult cleaning of the inner cavity of the combustion chamber.

The invention relates to a system for treating heavy hydrocarbon, which can reduce the content of heavy fraction impurities in a gas-phase component and the content of light components in a liquid-phase component by injecting a cooling aid, a separation aid and an optional gas stripping aid, thereby improving the gas-liquid separation effect. Moreover, the flash separation equipment is separated into a plurality of separation chambers which are arranged side by side through baffles, each separation chamber is provided with a steam-hydrocarbon mixture inlet and a gas phase outlet, and a high-temperature steam-hydrocarbon mixture entering the separation chamber is separated and then directly enters a downstream device from the gas phase outlet of the separation chamber. The hydrocarbon partial pressure can be adjusted without arranging a high-temperature adjusting valve on the gas phase outlet pipeline, so that the fault rate of the high-temperature adjusting valve at high temperature can be reduced, and the service life of the system can be prolonged. In addition, a cyclone hydraulic separator and a tower tray are arranged in each separation chamber, so that the gas-liquid separation efficiency and the flash evaporation effect can be improved.

The utility model discloses a welding wire drawing lubricant powder coating material box which comprises a first cavity, a second cavity and a third cavity, through holes for welding wires to penetrate through are formed in the two side edges of a box body in the length direction, a first partition plate and a second partition plate, the first cavity is used for storing lubricant powder, a rotating device is arranged in the second cavity, and the third cavity is used for storing the lubricant powder. On the basis of the same inventive concept, the utility model further provides a welding wire drawing device which comprises a machine table and a drawing unit and has the beneficial effects that the rotating ring can drive bottom lubricating powder to ascend through a material groove and then pour the lubricating powder on a welding wire, and the welding wire can be drawn through the drawing unit; therefore, the contact effect can be guaranteed, and the lubricating effect is improved. The inclined bottom of the material box can concentrate the lubricating powder to one end of the rotating ring, so that the stacking height is increased; one end of the die head is provided with the extrusion hole, so that excessive lubricating powder can be discharged from the extrusion hole when the pressure is too large, coking is prevented, and the quality of the lubricating powder is ensured.

The present invention discloses a circulating fluidized bed boiler furnace segmented combustion system, which is composed of a membrane water-cooled wall, a horizontal air distribution plate at the bottom, and an angled feeding and spreading area at the front wall of the water-cooled wall. Compared with a traditional circulating fluidized bed boiler, after the fuel enters the furnace, it first undergoes a preheating, evaporation, and spreading process, and then falls into the combustion space above the air distribution plate at the bottom of the furnace under the action of gravity for fluidized combustion. For circulating fluidized bed boilers that burn biomass fuels or garbage fuels with high moisture content, this system can fully dry, burn, and burn out fuels with high moisture content and difficult ignition, so that the agglomerated fuel can be fully spread in the furnace combustion space, improve combustion uniformity, and reduce air distribution plate temperature deviation, thereby effectively solving the problem of air distribution plate coking, improving boiler combustion efficiency, and improving economy. At the same time, the system can control the combustion situation in the furnace, control the flue gas temperature level and oxygen content by adjusting the air volume at various locations, thereby reducing nitrogen oxide emissions.

The utility model discloses a kind of spice extract liquid continuous concentration device, including tank, the tank top is connected with steam pipeline, the tank side is connected with solution feed pipe, extract liquid is added to tank by the solution feed pipe and concentrated, the second heating device is arranged in the tank bottom, the second heating device is also arranged in the tank, the second heating device is the helical electric heating slide of helical fixed installation in tank middle inner wall, the top slide opening of helical electric heating slide is directly opposite the outlet of solution feed pipe, extract liquid flows into helical electric heating slide by the outlet and is primarily heated and concentrated, and then again flows into tank bottom by the second heating device and is secondarily heated and concentrated;The utility model realizes that extract liquid is evaporated and condensed by subsection continuous heating;Heating efficiency is improved.

The present invention discloses an incinerator, a separator, a pneumatic distribution valve, a dryer, a fine ash separator, a condenser, a steam-water separator, a first blower, a rear heating surface, a dust collector, an induced draft fan, and a chimney; the upper part of the incinerator is respectively connected to the separator and the rear heating surface; the lower part of the separator is respectively connected to the incinerator and the dryer through a pneumatic distribution valve, and the dried sludge in the dryer passes through the fine ash separator, the condenser, and the steam-water separator in turn, and is sent to the incinerator under the action of the first blower; the rear heating surface is connected to the dryer through circulating heat transfer oil, and the high-temperature flue gas in the rear heating surface passes through the dust collector and is discharged from the chimney under the action of the induced draft fan. The present invention organically integrates sludge drying and incineration, greatly reduces the consumption of auxiliary fuel during sludge incineration, greatly simplifies the drying and incineration process, and has the characteristics of simple operation, large adjustment range, good control performance, and low production cost.

A hydrotreating method belongs to the technical field of energy and chemical industry. The hydrotreating method comprises the following steps: hydrotreating a raw material by adopting a hydrogenation device, wherein the raw material is a heavy or inferior oil product; the heavy or inferior oil product is a fossil oil product or biomass waste grease, and when the conversion rate of the fossil oil product in the reaction system is reduced to 70%-90% of the original design value or the deoxidation rate of the biomass waste grease is reduced to 70%-90% of the original design value, adding a liquid catalyst into the reaction system; the liquid catalyst comprises an oil-soluble metal organic salt. When the activity of the original hydro-conversion catalyst in the system is reduced to a certain degree, the liquid catalyst is added into the system, so that the reaction activity of the system is improved, and the stable operation of the reaction system at a relatively high conversion rate is maintained at a relatively low temperature; the replacement frequency of an original hydro-conversion catalyst is reduced, the operation period of a hydrogenation device is prolonged, and the productivity and the utilization efficiency of the hydrogenation device are ensured.

The utility model discloses a lubricating oil filtering and recycling device which comprises a filtering hopper and a reduced pressure distillation bin, the filtering hopper is arranged at the upper end of the side portion of the reduced pressure distillation bin, a feeding pipe is connected between the lower end of the filtering hopper and the upper end of the side portion of the reduced pressure distillation bin, and an electric valve is arranged in the feeding pipe. A frame is arranged at the upper end of the interior of the filter hopper, a filter screen is arranged between the lower ends of the frame, clamping blocks are arranged at the two ends of the upper portion of the filter hopper, clamping grooves are formed in the two ends of the frame, the clamping blocks are connected with the clamping grooves in a clamped mode, handles are hinged to the two ends of the frame, and an evaporator is arranged at the bottom of the reduced pressure distillation bin. A supporting cover is arranged on the side portion of the reduced pressure distillation bin, and a vacuum pump is arranged in the supporting cover. According to the utility model, filtered impurities are easy to clean, and the recovery effect is good.

The utility model relates to a polymeric kettle device which comprises a kettle body and an internal heating assembly, the internal heating assembly is arranged in the kettle body and comprises a feeding main pipe, a feeding pipe, a collecting pipe, a discharging pipe and a discharging main pipe, the feeding main pipe and the discharging main pipe are arranged close to the bottom of the kettle body, the collecting pipe is arranged above the feeding main pipe and the discharging main pipe, and the discharging pipe is arranged below the feeding main pipe and the discharging main pipe. One ends of the feeding pipes are communicated with the feeding header pipe, the other ends of the feeding pipes are communicated with the collecting pipe, one ends of the discharging pipes are communicated with the collecting pipe, and the other ends of the discharging pipes are communicated with the discharging header pipe. According to the polymerization kettle device, the multiple feeding pipes and the multiple discharging pipes are adopted in the inner heating assembly arranged in the kettle body, the multiple pipes are fed and discharged at the same time, the flow of a pipeline is increased, the flow path of a heating medium in the pipeline is shortened, and the pressure drop of the pipeline is effectively reduced, so that the temperature difference between an inlet and an outlet of the heating medium can be effectively reduced; the temperature distribution of the materials in the kettle body is more uniform, and the materials in the kettle body are prevented from coking.

The present invention belongs to the technical field of regeneration of contaminated soil, and particularly relates to a soil pyrolysis treatment method and equipment based on direct pyrolysis desorption. The soil pyrolysis treatment method based on direct pyrolysis desorption includes soil pretreatment, soil pyrolysis desorption in a direct pyrolysis desorption furnace, and pyrolysis flue gas treatment of the direct pyrolysis desorption furnace. In the pyrolysis flue gas treatment of the direct pyrolysis desorption furnace, the specific steps are: (1) separating the pyrolysis flue gas of the direct pyrolysis desorption furnace to obtain high-temperature smoke and soil pyrolysis gas; (2) mixing the high-temperature smoke with the pretreated soil and introducing it into an indirect pyrolysis desorption furnace for pyrolysis desorption; (3) conducting the pyrolysis desorption gas generated by the indirect pyrolysis desorption furnace, and discharging the treated soil from the indirect pyrolysis desorption furnace. The soil pyrolysis treatment method and equipment based on direct pyrolysis desorption can solve the technical problems of large amount of smoke and high concentration of organic pollutants in the direct pyrolysis desorption process, and at the same time improve the treatment efficiency of the pyrolysis desorption process.

This invention relates to the field of circulating fluidized bed boiler technology, specifically to an anti-clogging structure for the return feed port of a circulating fluidized bed boiler. This structure employs a high-pressure fluidizing air duct embedded in the return feed channel of the circulating fluidized bed boiler, with the port of the embedded section directly opposite the return feed port area where the return feed channel connects to the furnace of the circulating fluidized bed boiler. A high-pressure fluidizing air source is connected to one end of the high-pressure fluidizing air duct, providing fluidizing air that is blown from the port of the embedded section towards the return feed port area, preventing ash and coking in the return feed port area. By embedding a high-pressure fluidizing air duct at the end of the return feed channel, this invention effectively prevents abrupt changes in material flow characteristics and thermal imbalance at the return feed port during load variations, thus preventing the formation of a coke layer on the inner wall and ultimately causing blockage, which is beneficial for ensuring the normal operation of the boiler.

The present invention relates to the technical field of liquid desulfurization slag remover, and specifically discloses a high-efficiency liquid desulfurization slag remover, wherein the raw materials include by mass: 5-15 parts of limestone powder, 0.1-1 parts of catalyst, 20-25 parts of oleic acid, 1-3 parts of sodium hydroxide, 0.1-1 parts of yttrium chloride, 0.0403-0.1550 parts of sodium fluoride, 0.0131-0.3830 parts of sodium dichromate, 1-3 parts of ethylenediamine, 2-5 parts of methyl acrylate, 5-15 parts of sodium tripolyphosphate, and 20-35 parts of sodium chlorite. The present invention also discloses a preparation method of the above-mentioned high-efficiency liquid desulfurization slag remover. The present invention has no odor, no irritating smell, and no polluting components to the body and the environment; it is not easy to block the nozzle, and it can not only effectively remove the slag body in the softened dust in the smoke, prevent coking, effectively reduce energy consumption and cost, and significantly improve the efficiency of the entire desulfurization system.

The invention discloses heating equipment for improving the oil well recovery rate and relates to the technical field of oil exploitation, the heating equipment comprises a heating box and a heat exchanger, a water storage tank is fixed to one side of the interior of the heating box, an anti-explosion distribution box is connected to one side of a heating module, and a heat preservation pipe is connected to the top of the heating module; the bottom of the heat exchanger is connected with the water storage tank through a pipeline. According to the heating equipment for improving the oil well production rate, purified water is heated firstly, the heated purified water flows to conduct heat exchange on crude oil, an oil conveying pipe is not directly heated, coking of the pipe wall is avoided, accelerated corrosion of the pipe wall is prevented, meanwhile, whether crack leakage happens to the pipe or not is monitored by means of whether bubbling happens to the film sleeve or not, and the oil well production rate is improved. And when crack leakage occurs, flowing of purified water is utilized to pull in the binding belt to tighten the binding belt on the two sides of the bubbling part so as to prevent the bubbling part from being expanded, sufficient time is provided for the arrival of maintainers, and meanwhile, the binding belt can be used as an emergency measure to keep original continuous heat exchange transmission.

The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler soot anti-coking device which comprises a filter box and a cover plate, a conveying pipe is installed at one side end of the filter box, a smoke inlet pipe is installed at one side end, away from the conveying pipe, of the filter box, radiating fins distributed in an array mode are installed on the outer surface of the smoke inlet pipe, and the cover plate is installed on the outer surface of the smoke inlet pipe. Two collecting boxes are installed at the lower end of the filter box and communicated with the filter box, the upper end of the filter box is open, the cover plate is installed at the upper end of the filter box, two alloy filter screens are installed at the lower end of the cover plate, and supporting plates which are symmetrically distributed are installed at the upper end of the filter box. A mounting plate is mounted at the upper end of the supporting plate, an electric push rod is mounted at the upper end of the mounting plate, and symmetrically-distributed fixing rods are mounted at the tail end of a piston rod of the electric push rod. The waste heat boiler has the advantages that coking in the waste heat boiler can be prevented, and normal use of the waste heat boiler is guaranteed.

The utility model relates to the technical field of boiler equipment, and discloses a rear smoke box for a boiler and the boiler, the rear smoke box comprises a box body and a cylinder structure fixed in the box body, and an inner heat insulation layer is arranged on the inner surface of the box body; an anti-corrosion layer is arranged on the inner surface of the cylinder structure, a fireproof layer is laid on the outer side of the anti-corrosion layer, and a middle heat insulation layer is further arranged between the anti-corrosion layer and the fireproof layer. The beneficial effects are that the thermal insulation layer is arranged in the box body, so that the durability of the inner wall of the box body is improved; the anti-corrosion layer, the middle heat insulation layer and the fireproof layer are arranged in the cylinder structure, so that oxidation, corrosion and coking of the heating surface in the cylinder are prevented. And the service life of the base material in the rear smoke box of the boiler is greatly prolonged, so that the boiler achieves the effects of safety, energy conservation and corrosion resistance.

The invention discloses a cascade hydrogen supply reverse / cross flow hydrogenation reaction device and application thereof in hydrogenation reaction. The cascade hydrogen supply reverse / cross flow hydrogenation reaction device comprises a gas-liquid removal area, an upper reaction area, a lower reaction area and a liquid degassing area which are sequentially communicated from top to bottom. The upper reaction zone comprises an inner cylinder I and an annular space I located outside the inner cylinder I, the top end of the inner cylinder I is communicated with a hydrogen-containing fluid I, the bottom end is closed, a through hole I is formed in the cylinder wall and used for communicating the inner cylinder I and the annular space I, the bottom end of the annular space I is communicated with a hydrogen-containing fluid II, and the top end is closed; the lower reaction area comprises an inner cylinder II and an annular space II located on the outer side of the inner cylinder II, the top end of the annular space II is communicated with a hydrogen-containing fluid II, the bottom end of the annular space II is closed, the bottom end of the inner cylinder II is communicated with a hydrogen-containing fluid III, the top end of the inner cylinder II is closed, and a through hole II is formed in the cylinder wall and used for communicating the inner cylinder II and the annular space II; the inner cylinder I and the annular space II are filled with a monolithic catalyst; and the annular space I and the inner cylinder II are filled with a non-monolithic catalyst.

The present invention belongs to the technical field of chemical equipment. The present invention provides a liquid-phase entrainment coupled gas-phase feeding device, a slurry bed reactor and applications thereof. The liquid-phase entrainment coupled gas-phase feeding device is used to realize the coordination of gas feeding and liquid feeding. At the same time, a pulse ejector and a liquid-phase entrainer are used to realize a gas-liquid fully mixed circulation flow in the reactor, thereby increasing the effective coverage area of ​​the gas sweeping, thereby increasing the utilization efficiency of hydrogen and making the reaction conditions milder; at the same time, coking at the bottom of the slurry bed reactor is effectively prevented, thereby extending the continuous operation cycle of hydrogenation.

The utility model relates to evaporation device technical field discloses an evaporation device, including evaporation bin, motor, first elbow pipe etc. Motor is located on evaporation bin upper surface, its rotor sleeve joint conducting ring and coaxial installation rotating rod, and rotating rod is linked with conducting ring. First elbow pipe is located in the bottom end of rotating rod, and the bottom end is connected with second elbow pipe through mounting rod, and the surface of mounting rod evenly is equipped with heating plate. Evaporation bin inner chamber bottom has support frame, and the bottom end of second elbow pipe is installed on support frame through bearing. When the device works, motor drives rotating rod to rotate, and conducting ring makes heating plate rotate and continuously electrifies and heats in rotation, forms dynamic heating. The rotation of heating plate makes liquid material form thin layer liquid film under the centrifugal action, increases the contact area of liquid and heating surface, accelerates heat conduction, and the shear force produced by rotation destroys the surface tension of liquid, promotes liquid update, avoids local overheating coking, and effectively improves the evaporation efficiency of sewage.

The present invention is a hydrogenation reactor for preparing high energy density fuel, comprising a tank body, wherein the tank body is provided with a temperature control module, a filter module and a reaction module from top to bottom; the side wall of the upper section of the tank body of the temperature control module is hollow to form an upper medium containing layer, and the inner wall extends to the middle to form a hollow partition; the filter module is located below the temperature control module and is connected to the temperature control module, and the filter module is detachably provided with three layers of filter drawers with apertures from large to small from top to bottom; the reaction module comprises a plurality of inclined catalyst plates, a lower catalyst plate and a hydrogen spray hood. The hydrogenation reactor for preparing high energy density fuel described in the present invention can significantly improve the efficiency of the reaction and increase the stability and balance of the reaction.

This invention discloses a method and system for producing mesophase carbon microspheres. The method involves hydrogenating purified catalytic slurry, followed by separation to obtain light fraction, middle fraction, and tail oil. The middle fraction is divided into two streams: the first stream undergoes cracking, with the cracking products recycled; the second stream undergoes a first heat treatment, and the heat-treated product is pulverized to obtain a solid first feed stream, a first solvent, and silicone oil, which are then subjected to a second heat treatment. The resulting reaction product is then centrifuged, washed, and dried to obtain mesophase carbon microspheres. The production system includes a purification unit, a hydrogenation reaction unit, a gas-liquid separation unit, a fractionation unit, a cracking reaction unit, a first heat treatment unit, and a second heat treatment unit. This invention proposes an optimized approach to preparing mesophase carbon microsphere raw materials, yielding high-quality mesophase pitch raw materials and mesophase carbon microsphere products.

The utility model provides an engine oil heating system of an engine, the engine and an automobile, the engine oil heating system comprises a bypass oil way, the bypass oil way is communicated with a high-position oil outlet of the engine and an oil pan, and the bypass oil way comprises an oil way switching part, a heating oil way and a straight-through oil way. The oil way switching component comprises an oil inlet and two oil outlets, the oil inlet of the oil way switching component is communicated with the high-position oil discharge outlet, one oil outlet of the oil way switching component is communicated with the oil inlet of the heating oil way, and the other oil outlet of the oil way switching component is communicated with the oil inlet of the straight-through oil way. And oil outlets of the heating oil duct and the straight-through oil duct are both communicated with the oil pan. According to the scheme, waste heat of the engine is used for heating part of return oil of the lubricating system, the functions of rapid warming and oil temperature management of the lubricating system are achieved independently, power of the engine or electric power resources of a vehicle do not need to be consumed, and the original structure, performance and functions of the engine lubricating system cannot be affected.