1088 results about "Oil separation" patented technology

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.

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.

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 >.

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 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 utility model discloses an emergency accident pool integrated with an oil separation function, which comprises an emergency accident pool body, a water inlet pipe is arranged on the side wall of one side of the emergency accident pool body along the length direction, an emptying pipe is arranged on the side wall of the other side of the emergency accident pool body, and the emptying pipe is communicated with the outlet end of a delivery pump arranged in the emergency accident pool body; a flow guide wall is arranged in the emergency accident pool body in the width direction, the flow guide wall is arranged on one side close to the emptying pipe, and the emergency accident pool body is divided into a separation area and a lifting area by the flow guide wall; a rectification hole is formed in the lower part of the flow guide wall; the separation area is communicated with the lifting area through the rectification hole; the delivery pump is arranged in the lifting area, and the water inlet pipe is positioned on the side wall of the separation area. The emergency accident pool integrated with the oil separation function solves the technical problem that oil pollutants in accident water cannot be effectively separated in the prior art.

Described herein are engine systems, closed crankcase ventilation systems, and hot filter assemblies that are configured to filter out contaminants from the closed crankcase ventilation system prior to being returned to an air intake of the engine system. In some examples, a closed crankcase ventilation system can include an engine comprising a crankcase, an oil separator coupled to the crankcase, and a hot filter assembly coupled to the oil separator and mounted to an exhaust manifold of the engine or a turbine housing of a turbocharger. The hot filter assembly comprises a housing defining a cavity, a gas inlet fluidly coupled between the oil separator and the cavity, a gas outlet fluidly coupled between the cavity and an air intake of the engine, and at least one baffle extending across the cavity and defining a first and second gas pathways on opposite sides of the baffle.

The invention discloses a composite evaporative cooling type heat pump unit which comprises an air cooling fan and an evaporative air cooler which are located at the top of the unit, functional areas of a box body of the unit are distinguished through double-layer grids, the grid on the left side corresponds to an air inlet, the grid in the middle covers filler for evaporative cooling, and a water tank for collecting spray water is arranged at the bottom. A cooling water pump for pushing water circulation is arranged on the side of the water tank; the unit is provided with an evaporative heat exchanger, an air-cooled heat exchanger, a shell and tube evaporator, a compressor, a gas-liquid separator and an oil separator, the evaporative heat exchanger is connected with the air-cooled heat exchanger through a liquid pipe, each template is provided with an independent cut-off ball valve, and a main loop is directly connected with a four-way valve and an electromagnetic valve automatic switching loop; an EVD data collector is arranged at an outlet of the shell and tube evaporator and is directly connected with the four-way valve, and an electromagnetic valve automatic switching loop is connected to an inlet through a copper pipe; the compressor and the four-way valve are adjacently arranged on the lower side of the box body, one end of the gas-liquid separator is connected with an exhaust port of the compressor through a steel pipe, and the other end is connected with the four-way valve; one end of the oil separator is connected with an exhaust port of the compressor through a steel pipe, and the other end is connected with the four-way valve. The problem that an evaporative heat pump unit in a low-temperature environment area in winter is unstable in heating effect is solved, meanwhile, the refrigerating efficiency is higher than that of an air-cooled heat pump, system operation is stable, and energy conservation and emission reduction are achieved.

The utility model provides an oil separator which comprises a barrel, an air inlet pipe, an oil return pipe, an air outlet pipe and a one-way valve. The air inlet pipe and the oil return pipe are connected to the barrel. The air outlet pipe is connected to the cylinder, one end of the air outlet pipe extends into the cylinder, and the other end of the air outlet pipe extends out of the cylinder. The one-way valve is arranged at the end, located in the cylinder, of the air outlet pipe and used for limiting the medium of the air outlet pipe to only flow out of the cylinder, and the one-way valve is a diaphragm type one-way valve. By means of the structural design, the reverse non-return function on the gas outlet passage of the oil separator is achieved through the diaphragm type one-way valve, media such as gas of an external pipeline are prevented from flowing into the barrel through the gas outlet pipe, the reverse flow phenomenon is avoided, and the stability and reliability of the oil separator are improved.

The invention discloses a method for preparing multifunctional oil-water separation paper through ZIF-67 in-situ growth on the surface of polydopamine coated fiber, and belongs to the technical field of preparation of fiber materials and composite materials thereof. The problems existing in an existing oil-water separation material preparation technology are solved. The method comprises the following steps: filter paper surface pretreatment; growing the MOF particles; and hydrophobic treatment. The product provided by the invention has self-cleaning and organic oil separation performances; the polydopamine and the silane with amino have rich amino, so that the polydopamine and the silane with amino have very high positive charge density during protonation, bacteria with negative charges can be attracted through electrostatic interaction, and the polydopamine and the ZIF-67 particles have a synergistic effect, so that the polydopamine and the ZIF-67 particles have an excellent inhibition effect on staphylococcus aureus. Oriented growth and controllability of MOF particles are achieved through loading of polydopamine on the surfaces of the fibers, and the super-hydrophobic paper is obtained; the method is simple, the process is easy to control, the cost is low, pollution is avoided, the oil-water separation performance is excellent, and the oil-water separation and antibacterial performance is achieved while the economic value of the filter paper is improved.

The utility model discloses an oil separation tank device for production wastewater, which comprises a tank body, an arc-shaped filter screen basket arranged at the front end of the tank body, a slag discharge pipe arranged on the side wall of the tank body and matched with the arc-shaped filter screen basket, a spiral conveying structure arranged on the tank body and matched with the arc-shaped filter screen basket, and a water inlet pipe arranged on the tank body and matched with the arc-shaped filter screen basket, a drainage pipe is arranged at the tail end of the pool body, an oil baffle plate and a spoiler which are matched with each other are arranged in the pool body, the interior of the pool body is divided by the spoiler to form a settling area, a blow-off pipe is arranged at the bottom end of the settling area, a blow-off valve is arranged on the blow-off pipe, a blow-off box is connected to the bottom end of the blow-off pipe, and a blow-off assembly is arranged in the blow-off box. According to the utility model, automatic cleaning of the arc-shaped filter screen basket can be realized, meanwhile, automatic discharge and cleaning of precipitated impurities are realized, and the zanthoxylum oil wastewater treatment effect is improved.

The invention discloses a biomass gas heat pump system and a control method thereof. According to the method, a generator set part and a heat pump unit part are included; the electricity output end of the generator set part is connected with the electricity input end of the heat pump set part; the generator set part comprises a generator set, a radiator, a stop valve, a cylinder sleeve water heat exchanger and a flue gas waste heat recoverer; the heat pump unit part comprises a compressor, an oil separator, a four-way valve, a condenser, an electronic expansion valve, an evaporator and a gas-liquid separator; the system has two operation modes, namely refrigeration operation and heating operation, and can recover engine flue gas waste heat and cylinder sleeve water waste heat during heating, so that the heating capacity is large, and the heating energy efficiency is high. During refrigeration, flue gas waste heat and cylinder sleeve water waste heat need to be discharged into air, and only the heat pump unit supplies cold. According to the system, biomass gas serves as driving energy to drive the generator to operate, energy distribution of the generator set and the heat pump is adjusted in good time by reasonably utilizing engine cylinder sleeve water waste heat and smoke waste heat, and the primary energy utilization rate of the whole machine is increased.

The invention discloses a multi-angle welding tool for welding a cylindrical shell of a petroleum separator, relates to the technical field of petroleum machining equipment, and provides the following scheme that the multi-angle welding tool comprises a welding gun body, and further comprises supporting mechanisms arranged at the two ends of the whole tool and used for carrying out balanced supporting on the two ends of the welding position in the cylindrical shell of the petroleum separator to be welded; the transverse welding mechanism is arranged between the two supporting mechanisms and used for driving the welding gun body to move transversely. Longitudinal and circumferential welding seam welding can be independently completed, arc welding seam welding can also be cooperatively achieved, the distance between the welding gun body and a welding point can be accurately adjusted, shells with different diameters and lengths can be adapted, the whole set of tool does not need to be replaced, pressure feedback of an extrusion sensing block is matched, the inner wall of the shell can be clamped in a self-adaptive mode, and it is guaranteed that a welding area is horizontal and free of displacement; dislocation weld defects are reduced, movement errors of the welding gun body are controlled, weld forming uniformity is guaranteed, and the problems of undercut and incomplete fusion are avoided.

The technology relates to the use of a high salinity produced water stream from a gas oil separation plant (GOSP), as a wash water stream for the desalter unit in a GOSP. The produced water stream is pretreated by a sequence of steps and subsequently desalinated by a ultra-high pressure reverse osmosis (UHP-RO) membrane. The UHP-RO produces a permeate stream and a reject stream. A portion of the permeate stream is reused as a wash water stream in the desalter unit of the GOSP.

The present invention discloses a method for preparing a super-hydrophilic / underwater super-oleophobic separation membrane for treating food wastewater. The preparation method comprises the following steps: firstly, alkali etching is performed to generate two functional groups, carboxyl and hydroxyl, on the surface of a polymer fiber fabric; then, under alkaline conditions, dopamine is used as an adhesive to fix Cu(OH)2 nanoparticles on the surface of the fabric; and finally, a super-hydrophilic / underwater super-oleophobic separation membrane is obtained. The super-hydrophilic / underwater super-oleophobic separation membrane of the present invention can be applied to the oil-water separation treatment of food waste wastewater. The preparation process of the present invention is simple, the raw materials are readily available, and the obtained super-hydrophilic / underwater super-oleophobic separation membrane has good stability, high separation efficiency and high reuse rate.

The utility model provides an oil separator which comprises a barrel, an air inlet pipe, an oil return pipe, an air outlet pipe and a check valve. The air inlet pipe and the oil return pipe are connected to the barrel. The air outlet pipe is connected to the cylinder, one end of the air outlet pipe extends into the cylinder, and the other end of the air outlet pipe extends out of the cylinder. The check valve is arranged at the end, located in the barrel, of the air outlet pipe and used for limiting the medium of the air outlet pipe to only flow out of the barrel, and the check valve is a gravity type check valve. Through the structural design, the reverse non-return function on the gas outlet passage of the oil separator is achieved through the gravity type non-return valve, media such as gas of an external pipeline are prevented from flowing into the barrel through the gas outlet pipe, the reverse flow phenomenon is avoided, and the stability and reliability of the oil separator are improved.

The invention relates to an intelligent turning device and method based on embroidery machine cam production, and relates to the related field of part machining.The intelligent turning device comprises a base plate, an upper box body and a lower box body are fixed to the top and the top of the base plate respectively, a box door is installed on one side of each of the upper box body and the lower box body, the intelligent turning device further comprises a leakage groove, and the leakage groove is formed in the circle center of the base plate; the leakage groove is conical, a fixing frame is installed on the leakage groove, a sliding assembly used for fixing and moving a cam base material is installed on the fixing frame, the cutting assembly is matched with the sliding assembly to machine the shape of the cam base material, and scrap iron generated when the base material is machined is collected, conveyed, compacted and discharged through the scrap discharging assembly. Due to the fact that cutting oil needs to be applied to equipment in the machining process, the cutting oil is conveyed in a circulating mode, a certain amount of cutting oil is inevitably attached to scrap iron in the machining process, and the cutting oil attached to the scrap iron can be separated through the conveying step and the compacting step.

The utility model provides an oil separator which comprises a barrel, an air inlet pipe, an air outlet pipe and an oil filter. The air inlet pipe is connected to the cylinder; the air outlet pipe is connected to the cylinder, one end of the air outlet pipe extends into the cylinder, and the other end of the air outlet pipe extends out of the cylinder. The oil filter is arranged at the end, located in the cylinder, of the gas outlet pipe and used for preventing oil from entering the gas outlet pipe and allowing gas to circulate. Through the structural design, according to the oil separator, oil liquid in gas is filtered out through the oil filter, the oil liquid in the gas is prevented from entering the gas outlet pipe, the separation effect of the oil separator can be optimized, and then the working efficiency of related equipment such as a condenser can be improved.

The utility model relates to a novel clean rainwater recycling pool which comprises a sedimentation pool communicated with initial rainwater, a mud pump is arranged at the bottom of the sedimentation pool, and an outlet pipeline of the mud pump is communicated with the outside; the oil separation tank is separated from the sedimentation tank through a partition plate which is longitudinally arranged, a first electric valve and a submersible sewage pump are arranged at the bottom of the side wall of the oil separation tank, and an outlet pipeline of the submersible sewage pump is communicated with the outside; the clean water tank is a closed tank and communicated with the oil separation tank through a first electric valve, a submersible pump is arranged at the bottom of the clean water tank, and an outlet pipeline of the submersible pump is communicated with the outside. Sediment in initial rainwater can be settled, greasy dirt in the initial rainwater floats upwards to the surface layer, lower clear liquid in the rainwater can be discharged into the clear water pool, finally clean rainwater is stored, and the clean rainwater is prevented from being polluted by dust due to the closed design. The sedimentation tank, the oil separation tank and the clean water tank are of an integrated structure, the construction cost of the rainwater tank is saved, meanwhile, the structure is tighter, and the occupied space is small.

The utility model relates to the technical field of biodiesel production, in particular to a catalyst separation and recovery device for converting waste oil and fat into biodiesel, which comprises a separation tank. A feed pipe is fixedly connected to the rear position at the upper end of the separation tank, a waste discharge pipe is fixedly connected to the middle position at the lower end of the separation tank, two observation windows are fixedly connected to the front surface of the separation tank, and two adjusting components are arranged at the front position at the upper end of the separation tank. The adjusting components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod and a limiting block; the threaded pipe is driven to lift through the adjusting components, so as to adjust the heights of the first suction pipe and the second suction pipe, so that the floating oil and esterified glycerol can be accurately sucked, the separation quality of the esterified glycerol is effectively improved, the purity of the catalyst recovery is further improved, and the waste of the esterified glycerol is avoided.

The invention provides a ventilation system of a supercharged engine. The first passage communicates the downstream intake part with the crankcase in order to ventilate the crankcase. A second passage communicates the upstream intake portion with the crankcase. The oil separator is provided in the second passage. A third passage communicates the downstream intake portion with the oil separator. The one-way valve restricts the flow of gas through the third passage from the oil separator toward the downstream intake portion.

The utility model relates to a vacuum pump and relates to the technical field of vacuum pumps. The utility model provides a vacuum pump which comprises a vacuum pump body and an oil separator. The exhaust channel, the exhaust port and the first gas port are formed in the main shaft, the oil separator is arranged in the exhaust channel, oil gas entering the oil cavity from the first gas port can be separated and filtered through the oil separator, oil liquid in the oil gas can be separated out, and the oil gas with oil liquid such as lubricating oil is prevented from entering the working cavity; the vacuum pump is prevented from being damaged; meanwhile, pressure balance between the working cavity of the vacuum pump body and the oil cavity of the oil tank can be achieved.

Provided is a grease composition containing a base oil (A), hydrophilic nanofibers (B) having a roughness (d) of 1 nm to 500 nm, and particles (C) having a structure in which the hydrophilic nanofibers (B) are one or more types selected from the group consisting of cellulose nanofibers (B1) and modified cellulose nanofibers (B2), the particles (C) having a hydrophobic group on the outermost surface of the hydrophilic matrix structure, and having a hydrophobic group on the outermost surface of the hydrophilic matrix structure. In the grease composition, the average particle diameter of the particles (C) is 1 nm to 500 nm, and the grease composition has an appropriate oil separation degree and excellent water resistance despite the use of hydrophilic nanofibers.

The invention belongs to the technical field of harmless treatment of animals died of illness, and discloses a harmless treatment system and method for animals died of illness, the system comprises a crushing unit, a first hydro-thermal treatment unit, a grease separation unit and a second hydro-thermal treatment unit, the crushing unit is connected with the first hydro-thermal treatment unit through a conveyor; an outlet of the first hydrothermal treatment unit is divided into two paths, one path is connected with the grease separation unit, and the other path is connected with the material storage tank; one outlet of the grease separation unit is connected with an oil pump, the other outlet of the grease separation unit is sequentially connected with a material storage tank, a booster pump, a preheater, a heater and a reactor, an outlet of the reactor is connected with a pipe side inlet of the preheater, and the reactor is connected with the bio-oil separation unit through a step-down transformer. The aqueous-phase product can also be used for preparing a liquid fertilizer, and resource utilization of the aqueous-phase product is realized while zero emission of wastewater and waste residues is realized.

The invention provides a control method of a target test loop and a CO2 ice making test system, and belongs to the technical field of refrigeration circulation. The method comprises the following steps: acquiring a working condition and an ice surface load demand; determining a target circulation mode from a plurality of preset circulation modes based on the working condition and the ice surface load demand; controlling the opening and closing states of each valve in the valve module according to the connection relation of the compressor module, the oil separator, the exhaust pre-cooling module, the heat recovery module, the air cooler, the flash tank, the multiple heat regeneration modules, the ejector, the CO2 circulation module, the ice making module, the gas-liquid separator, the valve module and the throttling valve module; constructing a target test loop corresponding to the target circulation mode; determining a target control parameter set corresponding to the target circulation mode according to the working conditions; and adjusting the opening degree of the throttle valve module based on the target control parameter set so as to control the operation of the target test loop.

The utility model belongs to the technical field of domestic sewage treatment biological filter beds, and particularly relates to an integrated active biological filter bed for centralized treatment of domestic sewage, which comprises a base and a water-oil separator, a sedimentation tank is arranged at the top of the base, a water inlet pipe is arranged on the left side wall of the sedimentation tank, a screen is arranged on the inner wall of the water inlet pipe, and a water outlet pipe is arranged on the water inlet pipe. A water pump is arranged at the top of the sedimentation tank, a water pumping pipe is arranged at the top of an inner cavity of the sedimentation tank, one end of the water pumping pipe is connected with the bottom of the water pump, and a connecting pipe is arranged at the top of the water pump. Therefore, the filter capacity is improved, the growth and metabolism of the biological filter bed are facilitated, and the service life of the biological filler is greatly prolonged.

The utility model relates to the technical field of sewage treatment, in particular to a domestic sewage treatment system for plateau agricultural and pastoral areas, which comprises an oil separation tank, a self-rotating slag removal grating device, a fluidized bed separator and a drying device. Sewage automatically flows into the self-rotating slag removal grating device from the oil separation tank, scum in the sewage is filtered by the grating cylinder, the sewage filtered by the grating cylinder enters the boiling bed separator through the water pump for treatment, and sand grains, suspended solids and organic matters in the sewage are removed by the boiling bed separator; sand grains, suspended solids and organic matters generated by the fluidized bed separator are conveyed to the drying device for drying treatment, so that the treatment of the domestic sewage is completed. The treatment system does not have a treatment pond which is inconvenient to carry and is made of concrete, and adopts an assembled combined structure, so that the formed equipment can be carried, the problems of carrying and mounting are effectively solved, and the treatment system is particularly suitable for being used in plateau agricultural and pastoral areas.

The utility model discloses a horizontal scroll compressor, air conditioner and vehicle for vehicle, horizontal scroll compressor includes: compression part, and compression part includes compression cavity, oil separation shell, and oil separation shell is connected with compression part, and oil separation shell is equipped with oil separation chamber and oil storage chamber, oil separation shell is equipped with first groove body towards the side of static scroll, and static scroll seals first groove body, and oil separation shell is equipped with the first batten in first groove body, and the inner wall of first groove body and static scroll are limited to the oil outlet channel between first batten, and the oil inlet of oil outlet channel communicates with oil separation chamber, and the oil outlet of oil outlet channel communicates with oil storage chamber, and the oil outlet is located above the oil inlet, the utility model provides horizontal scroll compressor, and the oil outlet channel is by the inner wall of first batten, first groove body and static scroll and is commonly limited to, and the inner wall of oil outlet channel has enough strength.

The application discloses a scroll compressor with an oil return mechanism and belongs to the scroll compressor field, which comprises a compressor body, a static disc and a dynamic disc, the end of the compressor body is fixedly connected with the static disc, the compressor body is rotationally provided with the dynamic disc through a bearing and a crankshaft at one end close to the static disc, the side, away from the compressor body, of the static disc is provided with a high-pressure cavity, the high-pressure cavity is internally provided with an oil separator, and the compressor body is provided with a low-pressure cavity at the side of the dynamic disc. The first oil return channel and the throttle valve are arranged at the bottom of the high-pressure cavity, the second oil return channel is matched with the third oil return channel and the sealing channel, two oil paths are formed, the dead-zone lubricating oil can be introduced into the sealing groove by the pressure of the high-pressure cavity, the pressure at the bottom of the sealing strip is provided to lift the sealing strip, the sealing rubber strip is compressed, the sealing strip is tightly attached to the dynamic disc, the sealing property is improved, the leakage is reduced, and the compressor performance is improved.