2475 results about "Oil separation" patented technology

The invention discloses a compressor performance testing device capable of rapidly stabilizing working conditions, and relates to the technical field of compressor performance testing. The system comprises a test device and a test system in communication control connection with the test device, and the test device comprises an oil separation assembly and a refrigerant assembly; the oil separation assembly comprises an oil component, the oil component is connected with an oil flow meter and a gas path total flow meter through a tee joint, and the other end of the oil flow meter is connected with an oil cooler in series through an oil path pipeline. Through the arrangement of the refrigerant assembly, when a high-temperature and high-pressure gaseous refrigerant is discharged from the outlet of the tested compressor, one part of the high-temperature and high-pressure refrigerant is directly poured into the mixing box through the tee joint, and the other part of the high-temperature and high-pressure refrigerant is condensed by the condenser to become a liquid low-temperature and high-pressure refrigerant to enter the mixing box; the liquid refrigerant and the gas refrigerant are mixed, and the mixing proportion can be adjusted through the two adjusting valves respectively, so that the requirements of test working conditions are met.

The explosion-proof cooling device for the underground coal mine comprises a frame, an air-cooled condenser, a compressor unit, a shell-and-tube evaporator and a base are installed in the frame, and a programmable control box is installed at the left end of the frame; the air-cooled condenser is used for heat dissipation and cooling of coolant compressed gas; the compressor unit is used for compressing a gas refrigerant and comprises an oil separator, a double-screw compressor, a first motor, a double-loop reversible vacuum electromagnetic starter, a liquid storage tank, a first drying filter and a second drying filter; the shell-and-tube evaporator is used for heat exchange between high-temperature nitrogen and a low-temperature refrigerant. According to the cooling device, a refrigerant used when the cooling device works can be recycled, the investment of resources and cost of the part is reduced, the refrigeration cost is saved, nitrogen in the device can rapidly and continuously release low-temperature nitrogen, the air temperature in a large range of a mining area is efficiently achieved, air is inerted, the oxidation spontaneous combustion rate of coal is reduced, and gas explosion is restrained; the mining area safety is improved.

The microbial petroleum decontamination wastewater treatment device comprises an oil separation tank, pump bodies are installed at the front center and the rear center of the oil separation tank, an inclined plate is attached to the bottom of the oil separation tank, openings are formed in the positions, close to the top, of the front side and the rear side of the oil separation tank, and two penetrating openings are formed in the top of the oil separation tank; through mutual cooperation of the L-shaped fixing plate, the positioning plate, the movable plate, the rack, the reciprocating plate, the annular plate, the motor, the discharging box, the connecting plate, the guide plate, the L-shaped welding plate, the electric pole and other components, the oil separation tank can be used for oil separation, and the oil separation tank can be used for oil separation. When oil and suspended solids need to be removed, surface charges of oil drops can be reduced by scattering microorganisms, the oil drops are promoted to coalesce and float upwards, and the oil-water separation efficiency is improved.

A method to perform oil in produced water analysis allows measuring the large volume of oil in produced water reliably. In the method, a time-series and physics based machine learning model of a gas oil separation plant is generated, advisory actionable items for maintaining a crude oil quality within a pre-determined threshold are generated based on machine learning model coefficients and outputs of soft sensors, and then the advisory actionable items are presented to a user.

According to the liquid accumulator, the rolling rotor compressor and the air conditioner, shielding faces are matched with fisheye vent holes, when gas passes through the fisheye vent holes, the gas can be exhausted from one sides of the shielding faces of the fisheye vent holes, the two shielding faces in each pair are distributed on the sides, away from each other, of the two fisheye vent holes, and the two fisheye vent holes are communicated with each other. The two fisheye vent holes are formed in the liquid storage device, gas in the two vent holes collides and converges between the two fisheye vent holes after being exhausted, the flow speed of the collided gas is reduced, refrigerating machine oil in refrigerant gas is separated out, the separated refrigerating machine oil drips into the bottom of the liquid storage device, and when the liquid level reaches a certain height, the refrigerating machine oil can flow back to the pump body through the oil return hole; according to the device, the flowing direction of the gas when the gas penetrates through the fisheye vent holes is changed, oil-gas separation is assisted through collision of the gas, the gas flow oil separation effect is improved, the refrigerant gas and refrigerating machine oil are separated more sufficiently, and the oil-gas separation efficiency is improved. And the refrigerating or heating capability of the air conditioner during use is improved.

The utility model relates to a kitchen oil separation device capable of recycling waste oil, and belongs to the field of waste oil recovery. The device comprises a shell which comprises a centrifugal part and an oil receiving part, and the centrifugal part is provided with a smoke inlet; the oil receiving ring is fixed in the oil receiving part and is provided with an oil leakage hole; the liquid separation plate is arranged on the oil receiving ring; the smoke exhaust pipe is fixed in the centrifugal part and comprises a sealing part, a hollow part and a connecting part; wherein an impeller is installed in the hollow-out part, a first scraping plate is connected to the liquid separation plate in an abutting mode, and a connecting rod is fixed between the impeller and the first scraping plate. Oil smoke gas is sucked through the negative pressure effect to enter the centrifugal part through the smoke inlet to impact the liquid separation plate to intercept large-particle oil dirt and stay on the liquid separation plate, the oil dirt is finally collected into the groove in the oil receiving ring, small-particle oil dirt enters the hollow part along with airflow and forms vortex through the air holes formed in the inclined angle, the vortex enables oil-gas mixtures to be centrifugally separated, and oil-gas separation is achieved. And finally, the small-particle oil is adhered to the surface of the hollow part and falls onto the liquid separation plate again under the action of gravity, so that waste oil recovery is realized.

The present disclosure relates to a refrigeration system comprising: a compressor (1); an air outlet (2A) of the evaporator (2) is communicated with the air suction port (1A) of the compressor (1) through an air suction pipeline (10); an air inlet (3A) of the oil separator (3) is communicated with an exhaust port (1B) of the compressor (1), an oil outlet (3B) of the oil separator (3) is communicated with the compressor (1) through a first oil return pipeline (20), and a pump (11) is arranged on the first oil return pipeline (20); a liquid inlet (4A) of the automatic oil return device (4) is communicated with the evaporator (2) through a liquid taking pipeline (60) and used for obtaining the liquid refrigerant in the evaporator (2), an oil outlet (4B) of the automatic oil return device (4) is communicated with the air suction pipeline (10) through a second oil return pipeline (30), and at least one of the liquid taking pipeline (60) and the second oil return pipeline (30) is provided with a first on-off valve (18).

The present invention provides a treatment system for oily wastewater in methanol to olefins products, the treatment system comprises an oil separator, a clarification tank, a filter, a coalescer and a clean water tank which are sequentially connected through pipelines, the oil separator is provided with a water inlet, and the clean water tank is provided with a water outlet; wherein, the inner cavity of the oil separator and the clarification tank is provided with a plurality of partitions arranged at intervals from each other, the partitions divide the inner cavity of the tank into a plurality of reaction chambers, the partitions are provided with connecting ports to connect the reaction chambers, an oil bag is provided in each cavity of the oil separator, and a dosing device is provided in the cavity of the clarification tank to add drugs thereto. In view of the characteristics of methanol to olefin oily wastewater, the present invention treats floating oil, solid attached oil, suspended matter and emulsified oil separately, and modifies the wastewater from three phases of oil, water and solid into two phases of oil and water, thereby reducing the difficulty of treating the oily wastewater and improving the treatment stability of the oily wastewater.

The utility model discloses a heat management system based on an air floatation centrifugal compressor and a machine room. The heat management system comprises the air floatation centrifugal compressor, an evaporator, a condenser and a throttling element. An air inlet of the air flotation centrifugal compressor communicates with an outlet of the evaporator, a liquid cooling module is arranged in the air flotation centrifugal compressor to cool a motor of the air flotation centrifugal compressor, an inlet of the liquid cooling module is connected to an outlet of the condenser through a first control valve, and an outlet of the liquid cooling module is connected to an inlet of the evaporator. The evaporator is arranged at the to-be-cooled device to absorb heat emitted by the to-be-cooled device. An inlet of the condenser communicates with an exhaust port of the air flotation centrifugal compressor, and the throttling element is arranged at an inlet of the evaporator and used for conducting throttling expansion on the cooled refrigerant. The heat management system is applied to the machine room, an oil separator and corresponding pipelines are omitted, the overall structure is simple, and meanwhile the heat dissipation efficiency can be improved.

Apparatuses including coalescing filter are discussed and shown. The coalescing filter can optionally include: a filter media; a central core defining a central cavity, the central core positioned within the filter media; a first end cap; a coupling assembly attached to and extending outward from the first end cap, wherein the coupling assembly is configured to couple with a housing to position the coalescing filter within the housing; and a second end cap opposing the first end cap.

The utility model discloses a motorcycle engine crankshaft box body with an oil separation chamber, which comprises a crankshaft box body formed by connecting a left crankshaft box body and a right crankshaft box body, crankshaft mounting holes and balance shaft mounting holes are arranged on the left crankshaft box body and the right crankshaft box body, and the crankshaft mounting holes and the balance shaft mounting holes are distributed in a pairwise corresponding mode. An oil collecting chamber is arranged at the lower end in the crankcase body, and the balance shaft mounting hole is arranged close to the maximum oil liquid level position of the oil collecting chamber; the bottom of the oil collection chamber is provided with an oil separation chamber which is arranged close to the balance shaft mounting hole, the upper end of the oil separation chamber is close to the maximum oil liquid height of the oil collection chamber, and one side, far away from the balance shaft mounting hole, of the oil separation chamber is provided with an oil inlet hole; an engine oil filter screen is arranged in the oil separation cavity, and an oil guide channel with one end communicated with the oil separation cavity and the other end communicated with an oil inlet of the engine oil pump is arranged on the side of the oil separation cavity.

The invention discloses a system for treating domestic wastewater by utilizing a constructed wetland, which comprises an anaerobic tank, wherein the water outlet end of the anaerobic tank is communicated with the constructed wetland; toilet sewage flows into the septic tank through the water inlet end of the septic tank, and the water outlet end of the septic tank is communicated with the water inlet end of the anaerobic tank; sewage of a kitchen and a bathroom flows into the oil separation tank through a water inlet of the oil separation tank, a water outlet of the oil separation tank is communicated with a water inlet end of the anaerobic tank, a plurality of rapid oil removal components are arranged in the oil separation tank, and a residue filtering component is arranged at one end, close to the water inlet, of the oil separation tank. According to the domestic water treatment device, black water and grey water generated in domestic water can be mixed and treated together, and meanwhile, impurities, oil residues and the like generated in sewage precipitation can be quickly treated and cleaned.

Apparatuses, systems and methods are disclosed for separating oil from a blow-by gas of an engine. An example includes a method that includes passing the blow-by gas to a first oil separating apparatus and a second oil separating apparatus, wherein the first oil separating apparatus and the second oil separating apparatus are physically coupled together along interfacing surfaces and in fluid communication with one another as an array, separating the blow-by gas by passing the blow-by gas through respective filters of the first oil separating apparatus and the second oil separating apparatus, removing the oil from the blow-by gas with the respective filters and recombining the blow-by gas after passing from the respective filters; passing the blow-by gas as a single flow stream from the first oil separating apparatus and the second oil separating apparatus.

The technical scheme of the utility model discloses an oil return device of a high-temperature water-cooling screw unit. The oil return device comprises an oil separator, a first filter, an oil cooler, a first electromagnetic valve, a second filter, an oil return electromagnetic valve and a compressor, an inlet of the oil separator is connected with an exhaust port of the compressor, a low-pressure oil groove of the compressor is connected with an inlet of the oil cooler through a compressor oil cooling inlet pipe, and a bottom oil outlet of the oil separator is connected with the compressor oil cooling inlet pipe. A second filter and an oil return electromagnetic valve are sequentially installed between a bottom oil outlet of the oil separator and a compressor oil cooling inlet pipe, a high oil level switch and a low oil level switch are arranged on a bottom oil pocket of the oil separator, the high oil level switch and the low oil level switch are arranged on the bottom oil pocket of the oil separator, opening of the oil return electromagnetic valve is controlled, and the oil return process is controlled. And the second filter is matched, so that the oil return quantity is stable, the oil return efficiency is high, and the unit working effect is good.

The utility model discloses an improved oily water treatment device, and belongs to the technical field of sewage treatment. The device comprises a sewage storage tank, a gravity oil separation tank, an air floatation tank, a biochemical tank, a heating storage tank, a waste oil tank, a dosing tank and a dehydration system. According to the device, primary oil-water separation is performed from a pretreatment stage through a heating system of the heating storage tank, so that the operation load of subsequent units is reduced; a waste oil tank is added, treated oily sewage with still high oil content is pumped into the waste oil tank, floating oil at the upper end of the waste oil tank is collected through a floating oil device, oily sewage at the bottom repeatedly passes through an oil separation floating oil device to be retreated, and the water content of the waste oil is reduced until effluent reaches the standard of a biochemical system. Finally, the purpose of improving the oil-water separation effect of the gravity oil-separation air floatation equipment is achieved. The device performs repeated treatment according to the oil content index of the effluent of the oil separation floating device, reduces the chemical consumption and the power consumption, improves the separation effect, and has positive influences on the environment and the economy.

The invention relates to a dry tar-containing tail gas treatment process which comprises the following steps: step 1, after tail gas is collected by a pipeline, granulating tail gas enters a pipeline degreaser under the air draft action of a tail gas fan at the tail end; the invention relates to the technical field of tar-containing granulation tail gas treatment. According to the dry tar-containing tail gas treatment process, tar larger than or equal to 10 microns is intercepted through a detachable filter screen in a pipeline degreaser, and blockage is prevented in cooperation with a steam / solvent flushing opening; the dry type preprocessor adopts three-stage gradient filtration of a G3 metal net, G4 glass fibers and G5 glass fibers, viscous particles below 5 microns are thoroughly removed, and automatic overload alarm is realized through pressure difference detection; submicron oil mist is adsorbed by the electric trapping oil remover through a high-voltage electric field, safety is guaranteed through an explosion venting sheet, and electrodes are continuously / discontinuously flushed through a spraying pipe; the cleaning system separates a mixing / circulating area through a partition plate, an oil separation net protects a flushing water pump, and long-term stable operation of the device is achieved. The problem that tar is difficult to clean due to adhesion is thoroughly solved.

The oil separation structure comprises an oil separation cavity, a driving unit, a connecting unit and a separation unit, the driving unit, the connecting unit and the separation unit are arranged in the oil separation cavity, the driving unit is arranged on the connecting unit and can drive the connecting unit to rotate, and the separation unit is arranged on the connecting unit and can rotate along with the connecting unit; the oil separation cavity is provided with an air inlet, an oil-gas mixture enables the driving unit to rotate through the air inlet, then the separation unit is driven to rotate through the connecting unit, and the separation unit can act on the oil-gas mixture when rotating. The high-speed active rotation of the separation unit provides continuous and strong centrifugal force, so that the centrifugal effect required by oil-gas separation is remarkably enhanced and stabilized, the problems of insufficient centrifugal force and limited separation efficiency caused by the fact that a traditional oil separation pipe only depends on the rotation speed of fluid are solved, the oil-gas separation efficiency is greatly improved, and the service life of the oil-gas separator is prolonged. The low oil content of exhaust gas of the compressor is ensured, and the normal operation performance of an air conditioning system is maintained.

The utility model belongs to the technical field of separating devices, and relates to an oil-liquid separating device of a numerical control grinding machine tool, which comprises a separating cylinder, a filtering device, a machine frame and a separating motor, the separating cylinder is arranged on the lower portion of the machine frame, an oil-liquid tank, a rotating drum and a rotating shaft coaxial with the separating cylinder are arranged in the separating cylinder, and the lower end of the rotating shaft is connected with the separating motor. The oil liquid tank is coaxially suspended in the separation barrel, the filtering device is arranged above the oil liquid tank and comprises a filtering box, an electric heating strip, a magnetic stirring rod and a stirring rotating shaft, a filtering net disc is arranged at the bottom of the filtering box, and the upper end of the stirring rotating shaft is connected with a stirring motor. The electric heating strip melts greasy dirt condensed on waste chips and then flows into the lower separating barrel along with an oil-liquid mixture for centrifugal separation, a centrifugal separation method is adopted for oil-liquid separation, waste oil and cutting fluid are rapidly separated, and the recycling speed of the cutting fluid is increased.

According to the organic wastewater energy-saving treatment system provided by the invention, organic matters in organic wastewater can be greatly reduced through oil separation treatment of the reservoir and filtration and coalescence separation treatment of the filtration coalescence device, so that the purpose of recovering the organic matters is achieved; through multi-effect evaporation of the I-effect falling film evaporator, the II-effect falling film evaporator and the forced circulation evaporator, generated steam is recycled through the MVR compressor, cyclic utilization of secondary steam energy is achieved, and energy consumption is reduced; and the wastewater can be recycled through a multi-effect evaporation and resin adsorption treatment mode, and the recovery rate reaches 96%. The steam consumption for wastewater treatment can be reduced by 0.90 t / m < 3 >.

Oil lubricated supercritical fluid pumps with oil separators are disclosed herein. An example pump system to pressurize a fluid within a closed loop thermal transport bus disclosed herein includes a pump housing, a duct fluidly coupled to the pump housing, a first portion of the duct to include a mixture of an oil and the supercritical fluid, a second portion of the duct to include the supercritical fluid, and a separator positioned in a third portion of the duct between the first portion of the duct and the second portion of the duct, the separator to separate the oil in the mixture from the supercritical fluid.

The invention relates to the technical field of sample storage, particularly provides a cascade refrigeration system and a control method of an ultralow-temperature sample library, and aims to solve the problem that normal operation of a unit is affected due to abnormal oil return of an existing cascade refrigeration system. In order to achieve the purpose, the cascade refrigeration system comprises a high-temperature-stage refrigeration unit, a low-temperature-stage refrigeration unit and an intermediate heat exchanger, the low-temperature-stage refrigeration unit comprises a low-temperature compressor, an oil separation device and a heat exchange device, the oil separation device comprises a plurality of oil separators arranged in sequence, and a heat exchanger is arranged between every two adjacent oil separators; the low-temperature compressor, the oil separation device, the intermediate heat exchanger and the heat exchange device are communicated with one another to form a low-temperature-stage refrigerant circulation loop, and the high-temperature-stage refrigeration unit and the intermediate heat exchanger are communicated with one another to form a high-temperature-stage refrigerant circulation loop. The oil separation efficiency can be improved, deep oil removal is achieved, and oil return is remarkably improved.

The invention relates to the technical field of environmental protection equipment, and particularly discloses a continuous water-oil separation device which comprises a gravity separation tank and a pretreatment mechanism, a separation mechanism is mounted in the middle of the bottom end of the gravity separation tank, and a collection mechanism is jointly mounted between the lower part of the outer wall of the gravity separation tank and the middle of the bottom end of the separation mechanism; the separation mechanism comprises a centrifugal separation tank, an oil conveying pipe, an oil collecting hopper, a limiting ring, an adjusting tooth block and a hydrophilic oleophobic film; the oil conveying pipe is mounted at the top end of the centrifugal separation tank through a bearing; according to the oil-water separation device, oil-containing wastewater is subjected to gravity separation through the gravity separation tank, oil and water are subjected to centrifugal separation through the rotary centrifugal separation tank, and efficient oil-water separation can be achieved through the hydrophilic oleophobic film, so that the oil-water separation effect is further improved, and water and oil can be continuously and efficiently separated by adopting the separation device; the oil-water separation efficiency during treatment of a large amount of water-oil mixture is improved, and the requirements of modern industry on continuous, efficient and rapid oil-water separation can be met.

The invention relates to the technical field of sewage treatment, and discloses an energy-saving and environment-friendly treatment method for sewage generated by a spinning electrostatic deoiling device. The method comprises the following steps: performing oil separation pretreatment on the oily agent wastewater, and treating in a pH adjusting tank in two stages: in the first stage, adjusting the pH value to 9-10, and adding polyaluminum chloride while quickly stirring; and in the second stage, the pH is further adjusted to 11-12, polyacrylamide is added with slow stirring, and finally, standing, precipitation and separation are performed. According to the method, the pollutant removal efficiency is remarkably improved and the COD (Chemical Oxygen Demand) removal rate is high by accurately regulating and controlling the pH value, adding the flocculating agent in batches and controlling the stirring speed. Meanwhile, compared with a traditional process, consumption of a large amount of acid and alkali is avoided, generation of hazardous waste such as sludge is reduced, the dosage of a flocculating agent and the treatment cost are reduced, and the efficient, economical and environment-friendly sewage treatment target is achieved.

The invention relates to the technical field of sewage multi-stage treatment, and discloses washing sewage pretreatment equipment for rubber roller production, the washing sewage pretreatment equipment comprises an oil separation tank, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the oil separation tank, and a filter screen is fixed in the water inlet pipe; the cleaning assembly is arranged on the water inlet pipe and comprises a flushing part, the flushing part comprises a water injection pipe, the water injection pipe is fixed to the top of the water inlet pipe, a water storage tank is fixed to the top end of the water injection pipe, a pressing plate is arranged in the water storage tank, a first spring is fixed to the top of the pressing plate, and a supporting frame is fixed to the top of the water storage tank. The oil separation tank has the beneficial effects that sewage entering the oil separation tank can be further filtered through the arrangement of the filter screen, so that the situation that rubber particles and other solid impurities enter the oil separation tank is avoided, and when the filter screen is blocked, the filter screen can be automatically backwashed through the cleaning assembly, so that the oil separation tank is convenient to clean. Therefore, the normal flowing of the sewage into the oil separation tank is not influenced.

The utility model relates to the field of compressors, in particular to a scroll compressor which comprises a scroll assembly and an end cover connected with the scroll assembly, the end cover comprises an air inlet cavity, an oil separation cavity, an exhaust cavity, an oil storage cavity and an outlet, the air inlet cavity is communicated with an air outlet hole of the scroll assembly, the exhaust cavity is communicated with the outlet, and the oil separation cavity is communicated with the oil storage cavity. The gas inlet cavity is communicated with the oil separation cavity, the oil separation cavity is communicated with the exhaust cavity and the oil storage cavity, an oil-gas mixture enters the gas inlet cavity from the gas outlet and is separated into refrigerant gas and lubricating oil after passing through the oil separation cavity, the refrigerant gas enters the exhaust cavity and is exhausted to the outlet, and the lubricating oil is exhausted to the oil storage cavity after passing through the oil separation cavity. And the lubricating oil enters the oil storage cavity. In addition, the utility model further relates to a corresponding air conditioning system. The scroll compressor and the air conditioning system can have the advantages of low cost, high oil-gas separation efficiency, high refrigeration efficiency and the like.

The invention belongs to the technical field of emergency water treatment, and particularly relates to an oily sewage treatment system based on intelligent regulation and control and an operation method. The system comprises an intelligent regulation and control server, a preprocessing unit, a separation unit, an online detection unit and a regulation and control unit, the intelligent regulation and control server is internally provided with a pretreatment module, a separation module, an online detection module, a data analysis module and a real-time regulation and control module, and the separation module provides a T-shaped pipe and air floatation pipe technology and is used for separating floating oil and emulsified oil. The intelligent regulation and control server is connected with all the units, before operation, calculation formulas of floating oil separation efficiency and emulsified oil separation efficiency are input into the intelligent regulation and control server in advance, and initial values of all parameters are set; during operation, data are transmitted in real time so as to calculate the floating oil separation efficiency and the emulsified oil separation efficiency, the data are stored, and parameters are adjusted in real time according to the optimal separation efficiency. According to different working conditions, automatic adjustment can be achieved, intelligent regulation and control are achieved, and the application range is wider.

The application provides a refrigerant recovery system for refrigeration equipment test and a control method thereof, which comprises a compressor A, a three-way valve, a condenser, an oil separator A, a first pipeline, a second pipeline and a third pipeline, the three-way valve comprises a C port, a D port and an E port, one end of the first pipeline is communicated with the C port, and the other end can be communicated with a discharge end of the compressor A, one end of the second pipeline is communicated with the D port, and the other end is communicated with the oil separator A, one end of the third pipeline is communicated with the E port, and the other end can be communicated with the condenser, when the compressor A is started, the C port can be connected with the D port, and the E port is closed; when the compressor A is closed, the E port can be connected with the D port, and the C port is closed. According to the application, the problem that the flow direction of refrigerant in the oil separator is inconsistent when the refrigeration equipment is normally operated and when the recovery system is operated can be solved, and the problem that the efficiency of the oil separator is not high when the recovery system of the prior art is operated can be solved.

The invention relates to the technical field of lubrication, in particular to heavy-load open gear graphene lubricating grease and a preparation method thereof. The preparation method comprises the following steps: grafting octadecylamine and an ionic liquid to the surface of graphene, reacting with modified jatropha curcas oil to obtain modified graphene, and adding PAO, alkyl naphthalene oil, fumed silica and an additive to obtain the heavy-load open gear graphene lubricating grease. Graphene is modified and is matched with nano tungsten disulfide, so that the lubricating grease is good in lubrication and wear resistance; the synthesized anionic salt is used for modifying graphene, so that the obtained lubricating grease is good in extreme pressure property; graphene oxide is obtained by modifying jatropha curcas oil, the specific surface area of fumed silica and the pH value of a system are further controlled, and finally, the lubricating grease can meet the actual high-temperature use requirement; by changing the dosage of each component raw material and adding the raw materials in batches, the obtained lubricating grease has good low-temperature-resistant effect and oxidation stability, low oil separation amount and small evaporation loss.

The invention relates to the technical field of wastewater treatment, in particular to a thermal power plant wastewater treatment device which comprises a separation tank, a screening structure arranged on the inner side of the separation tank, an oscillation structure connected between the screening structure and the separation tank, a dredging structure arranged on the top side of the screening structure, and a cleaning structure arranged on the bottom side of the separation tank. A precipitation structure is connected to the side surface of the separation tank; a suction structure is arranged on the inner side of the precipitation structure; solid impurities can be continuously collected while waste water is filtered through the screening structure, the collection effect on the solid impurities can be improved through the oscillation structure, the filter cartridge can be rapidly dredged through the dredging structure, the filtering effect is kept, the separation tank can be conveniently cleaned through the cleaning structure, and the cleaning efficiency is improved. Oil separation can be carried out on the filtered wastewater through the precipitation structure, and the oil part in the wastewater can be separated through the suction structure.

The utility model relates to a whirlwind type oil separator which comprises a cylinder body, an air inlet pipe, an air outlet pipe, an upper partition plate and a lower partition plate, the upper partition plate and the lower partition plate are arranged in the cylinder body, the upper partition plate divides the interior of the cylinder body into a diffusion section and an oil subsection, and the diffusion section on the upper portion is communicated with the oil subsection on the lower portion through an air rising pipe. The lower partition plate divides the oil section into an upper separation section and a lower oil groove section, the air inlet pipe is communicated with the separation section, the air outlet pipe is communicated with the diffusion section, and the diffusion section is provided with diffusion blades. On the premise that the oil separation efficiency is guaranteed, the pressure loss of cyclone type oil separation is reduced by recovering dynamic pressure, and then the pressure ratio of a compressor is reduced, so that the energy efficiency of a refrigerating system is improved.