84results about "Dewatering/demulsification with mechanical means" patented technology

The utility model relates to the technical field of separating devices, and discloses an oiling multiphase flow separator which comprises a separating tank, a connecting ring is movably connected to the left side of the upper surface of the separating tank, a demister is fixedly connected to the top end of the connecting ring, and a driving plate is fixedly connected to the right side of the outer surface of the connecting ring. By arranging the connecting ring, the demister, the driving plate, the cylinder and the moving block, when the first motor starts to operate, the threaded rod starts to rotate, the moving block is driven by the rotation of the threaded rod, so that the moving block and the cylinder start to move back and forth under the driving of the threaded rod, and meanwhile, the driving plate is driven by the movement of the cylinder; therefore, the driving plate, the demister and the connecting ring start to rotate along the inner surface of the notch ring, and the demister is in active contact with the oil fog drops due to rotation of the demister, so that the removal efficiency of the demister on the oil fog drops in the natural gas is improved.

This utility model discloses a crude oil dehydration device for offshore oil drilling, relating to the technical field of crude oil dehydration. It includes a mixing tank, with a diversion tank fixedly connected to its lower part. Multiple settling tanks are arranged outside the diversion tank. An internal mixing mechanism is installed in the mixing tank for mixing the crude oil. A blocking plate is slidably connected to the inner wall of the diversion tank, with its upper surface contacting the bottom of the mixing tank. A lifting mechanism is also provided below the blocking plate to drive its up-and-down movement. A connecting pipe is fixedly connected to the upper part of the settling tanks. This utility model has a reasonable design structure. By using multiple settling tanks in a cyclical manner, the mixing process continues, increasing efficiency. This solves the problem that existing methods typically involve directly setting the crude oil in the mixing device after mixing, rendering the device unusable for a period and resulting in low crude oil dehydration efficiency.

The invention discloses a liquid-liquid coalescence filter element material for oil dehydration, which takes glass fiber paper as a substrate and is coated with the following modified materials in percentage by mass: 1 to 5 percent of nano silicon dioxide, 2 to 10 percent of gamma-aminopropyltriethoxysilane, 2 to 10 percent of octadecyltriethoxysilane and the balance of absolute ethyl alcohol. The water contact angle of the liquid-liquid coalescence filter element material is larger than 150 degrees, and the oil contact angle is smaller than 10 degrees; the invention also discloses a preparation method which comprises the following steps: uniformly mixing the raw materials to form a modified solution, spraying the modified solution on the surface of the cured glass fiber paper, and drying to obtain the liquid-liquid coalescence filter element material. According to the invention, the nano silicon dioxide is modified by gamma-aminopropyltriethoxysilane and octadecyltriethoxysilane, so that the super-hydrophobicity and super-lipophilicity of the glass fiber paper are improved; the prepared liquid-liquid coalescence filter element material is uniform and firm in coating adhesion and suitable for the fields of oil product production, storage, transportation and the like.

The invention discloses an air sealing system for a ship stern shaft sealing device, which relates to the technical field of ship stern shaft sealing and comprises a shaft tube body, a sealing structure is mounted at the end of the shaft tube body, an inlet pressure sensor is mounted at the air inlet end of the sealing structure, and a control mechanism is mounted on the inlet pressure sensor through a pipeline. A front oil tank mechanism is installed at the tail end of the shaft tube body, and the control mechanism comprises a control frame, an air control unit, a discharging and collecting unit, a lubricating oil control unit, a pump body and a master controller. Through the arrangement mode that the sealing mechanism and the control mechanism are matched, the pressure of each cavity is dynamically adjusted in a stepped mode according to the ship draft depth and the working condition, a reliable pressure gradient barrier is constructed, seawater invasion and lubricating oil leakage are effectively prevented, the sealing rings and the shaft necks are in a non-contact or micro-contact state, and the service life of the sealing rings and the shaft necks is prolonged. Therefore, mechanical friction and abrasion are reduced fundamentally, and the service life of the sealing ring is prolonged.

This invention discloses an anti-sloshing device and its control method for an oil-water separator tank on an offshore platform, belonging to the field of offshore oil and gas development equipment. The device includes a tank body, a condition monitoring component (DVL flow meter and wave height meter), symmetrically arranged liftable wave generators, and a control unit. Based on the monitored fluid direction and wave height data, the control unit drives the wave generator on the same side as the flow direction to generate reverse waves with opposite propagation directions and matching wave heights, actively counteracting sloshing. This invention dynamically suppresses liquid sloshing through a closed-loop control system of "monitoring-analysis-reverse wave generation," significantly improving separation stability and efficiency while reducing structural load.

The invention discloses a two-stage dehydration device and method for an oilfield produced liquid conveying pipeline. The two-stage dehydration device comprises a produced liquid buffer section, a rotational flow generation section, a separation section and a crude oil outflow section which are sequentially connected and coaxially arranged. A produced liquid inlet is formed in the produced liquid buffer section, a rotational flow generation structure is arranged in the rotational flow generation section and is used for primary oil-water separation, an oil-water separation induction structure is arranged in the separation section and is used for secondary oil-water separation, a wastewater outlet channel is formed in the separation section, and a wastewater outlet channel is formed in the wastewater outlet channel. A crude oil outlet is formed in the crude oil outflow section, and the produced liquid inlet and the crude oil outlet are coaxially formed; according to the invention, two-stage dehydration of the produced liquid in the oil field conveying pipeline can be realized without changing pipeline arrangement, so that the moisture content of the produced liquid entering a combination station is reduced, and the problem of high treatment cost of the produced liquid in the combination station is relieved.

The invention provides a separation device for gas reservoir exploitation, and belongs to the technical field of gas reservoir exploitation. Comprising a tank body, the top of the tank body is fixedly connected with a feeding pipe and an exhaust pipe, the bottom of the tank body is fixedly connected with a water drainage pipe, an oil drainage pipe and a cooperative driving mechanism, and the cooperative driving mechanism is used for processing emulsion in fluid and connected with the tank body and the feeding pipe. According to the device, the cooperative driving mechanism is arranged, so that fluid can be automatically layered after entering the tank body, the time for mutual sedimentation and layering of a gas phase, an oil phase and a water phase is shortened, the fluid separation efficiency of the device is improved, and before the fluid enters the space between the first partition plate and the second partition plate, emulsion is treated and demulsified, and the separation efficiency is improved. And the fluid is more efficient in the sedimentation process, and the quality of the treated fluid is higher.

The application discloses a multistage oil-water separator applied to the field of petroleum, and belongs to the technical field of petroleum processing. The roller in the coarse filter assembly can rotate and coarsely filter oil-water through coarse filter holes, and the flowability of oil-water in the oil-water separation tank is improved. Large-particle impurities in the oil-water are located inside the roller, the fine filter holes on the filter cylinder can perform secondary fine filtering on the oil-water, so that the fine-particle impurities in the oil-water can be separated, the small-particle impurities are located between the roller and the filter cylinder, the multistage separation of oil-water is realized, the filtering effect is improved, the oil dirt and impurities are scattered by the screw conveying blade one in the roller and the screw conveying blade two in the filter cylinder, the separation effect is further improved, the separation time is greatly shortened, the separated oil floats on the upper layer of water, and the part of the oil left after the water is discharged from the oil-water separation tank is the oil, so that the oil can be collected and treated subsequently.

The invention provides a rapid defoaming and degassing device for foamed crude oil, which can realize efficient defoaming and degassing of the crude oil. Comprising a horizontal tank body serving as a main body space for oil-gas separation and oil-water separation, the horizontal tank body is provided with a liquid inlet, a liquid outlet, a gas outlet and a drain outlet, the liquid inlet and the liquid outlet are formed in the head side and the tail side of the tank body respectively, and the liquid outlet comprises an oil outlet communicated with the upper portion of the side wall of the tail side of the tank body and a water outlet communicated with the lower portion of the side wall of the tank body; the rotational flow pipe is communicated with the liquid inlet in the head side of the tank body, an oil inlet and a first exhaust pipe are arranged on the rotational flow pipe, and the rotational flow pipe is used for introducing crude oil into the tank body through the rotational flow pipe and pre-separating oil and gas in the introduction process; the multiple stages of degassing mechanisms are arranged in the tank body, comprise a first-stage degassing mechanism, a second-stage degassing mechanism and a third-stage degassing mechanism which are sequentially arranged from the head side to the tail side of the tank body, and are used for degassing crude oil; the heating mechanism is arranged at the lower part in the tank body and is used for heating crude oil; and the exhaust mechanism is communicated with the gas outlet at the top of the tank body and is used for exhausting crude oil removed gas.

The utility model discloses a dehydration device for lubricating oil production, and relates to the technical field of lubricating oil processing equipment. The dewatering device for lubricating oil production comprises a top cover, an outer tank body, an inner tank body, a plurality of dewatering filtering assemblies and a water pumping pipe, the top end of the outer tank body is hinged to the top cover, an inner tank plugging cover is arranged on the top cover, an oil inlet pipe is arranged on the inner tank plugging cover, the inner tank plugging cover is nested at the top end of the inner tank body in a sealed mode through a sealing ring, and the water pumping pipe penetrates through the top cover and the inner tank plugging cover. The two sides of the oleophylic and hydrophobic membrane are divided into a high position and a low position, a water outlet is formed in the inner tank body on one side of the high position in a penetrating mode, and the water outlet discharges water obtained through treatment to a water storage tank through an inclined plate. Dehydration treatment is carried out through the dehydration filtering assembly, after the inner tank body carries out dehydration treatment on lubricating oil, the treated lubricating oil is directly discharged from the oil outlet pipe, the structure is simple, and the dehydration treatment efficiency is high.

The utility model discloses an oil-water separation device for measuring the oil content of an oil well, and relates to the technical field of oil-water separation devices. The device comprises a box body and is characterized in that one end in the box body is rotationally connected with a mounting plate, the two ends of the mounting plate are rotationally connected with coalescence filter cartridges respectively, one end of the top of the box body is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a two-way screw rod; the bidirectional screw rod is in threaded connection with a top cover above the mounting plate, the bidirectional screw rod is in threaded connection with a material receiving hopper below the mounting plate, one end of the top cover is fixedly connected with a U-shaped spray pipe, the two ends of the U-shaped spray pipe are fixedly connected with first brush plates respectively, and one end of the material receiving hopper is fixedly connected with a connecting plate; one end of the connecting plate is fixedly connected with a water spraying pipe, and the other end of the connecting plate is fixedly connected with a second brush plate; according to the utility model, through the design of the mounting plate, the two coalescence filter cartridges can be alternately cleaned and used.

The invention relates to the field of fuel regeneration, dehydration and filtration, in particular to an EH fire-resistant oil regeneration, dehydration and filtration machine which comprises a base, an oil pump is fixedly mounted on the base and is in driving connection with a hydraulic loop, and the hydraulic loop is sequentially communicated with an oil inlet valve, an oil suction filter, a fine filter, a protection filter and an oil outlet valve. The electric control box is mounted on the upper side of the base; a regeneration branch and a dehydration branch are arranged between the oil absorption filter and the fine filter; a dehydration filter is mounted on the dehydration branch; according to the EH fire-resistant oil regeneration dehydration oil filter, the functions of precise filtration, deep dehydration and regeneration are integrated, comprehensive purification of EH fire-resistant oil is achieved, solid particles, moisture and acidic materials can be effectively removed, and the operation reliability and safety of a steam turbine speed regulating system are improved; meanwhile, the equipment is connected in parallel with the regeneration filter and is adjustable in flow, so that the complexity of serial use of a plurality of equipment is avoided, and the occupied area and the maintenance cost are reduced.

A vapor and liquid recovery tower (VLRT) includes a top section adapted to receive a liquid stream with entrained gas that gravity flows down through the VLRT, and a packing section comprising packing material adapted to release the entrained gas from the liquid stream to produce a VLRT liquid output and a VLRT gas output. The VLRT may further include a lower section adapted to receive a gas stream that rises up through the packing section, wherein the packing material is further adapted to increase surface area contact between the liquid stream and the gas stream, and wherein the VLRT gas output includes the entrained gas and the gas stream.

The utility model relates to the technical field of chemical separation, in particular to an oil-water purification device for ternary and polymer flooding produced liquid. According to the oil-water purification device for the ternary and polymer flooding produced liquid, through the separation assembly in the inclined plate, especially the combination of an inclined limiting block, a pushing cross rod, an isolation block and a filter plate, the device can efficiently and preliminarily separate an oil-water mixture, and the inclined design is beneficial to utilizing the gravity effect; oil and water can be layered more easily according to density difference, separated water can be quickly guided to the outside of the device through the arrangement of a plastic slope, the water is prevented from being accumulated in the device and affecting the separation effect, the transfer box is designed to be used for collecting an oil-water mixture subjected to preliminary separation, and the oil-water separation efficiency is improved. Further purification treatment is carried out through the oil-water adsorption layer, and oil remaining in water can be efficiently adsorbed and removed through the use of the oil-water adsorption layer, especially the close fit design of the oil-water adsorption layer and the inclined knife edge, so that the purification efficiency is improved.

The utility model relates to the technical field of diesel oil dehydration, in particular to a diesel oil dehydration device. The diesel oil dehydration device comprises a hydrofining reactor, a hydrocracking reactor, a fractionating tower, a diesel oil stripping tower, a stabilizing tower, a deoxygenated water heat exchanger, an air cooler, a low-temperature water cooler, a filter and a coalescer which are communicated in sequence. The low-temperature water cooler is additionally arranged to form a low-temperature refrigerant to reduce the diesel oil temperature, dissolved water is converted into free water, the water-oil separation efficiency is improved, and the purpose of reducing total water is achieved.

A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter.

The invention relates to a wave-electric double-field oilfield produced liquid treatment device. A box body of the device comprises a dehydration cavity and a transition layer treatment cavity. The first heat radiation coalescence electrode is arranged in the dehydration cavity and is used for promoting coalescence of a dispersed phase in the oil field produced liquid. The first flat net demulsification electrode is arranged in the dehydration cavity and located on the side, away from the installation face, of the first heat radiation coalescence electrode so as to form a first demulsification electric field. The flat net dehydration electrode is arranged in the dehydration cavity and located on the side, away from the first heat radiation coalescence electrode, of the first flat net demulsification electrode so as to form a dehydration electric field. And the transition layer transfer assembly is used for conveying the transition layer formed in the dehydration cavity into the transition layer treatment cavity. The ultrasonic treatment unit is arranged in the transition layer treatment cavity and used for generating an ultrasonic cavitation field to act on the transition layer so as to separate the oil phase in the transition layer. By means of the collaborative design of'heat-electricity 'demulsification dehydration and ultrasonic waves, efficient and continuous dehydration of oil field produced liquid is achieved, and the problem that equipment is shut down frequently due to accumulation of a transition layer is solved.

The application relates to the field of petroleum technology, in particular to a cyclone coupling demulsification separation system based on a high-voltage pulse electric field, which comprises a demulsification separation unit, a data acquisition unit, a pretreatment unit and a data analysis unit. The demulsification separation unit is used for demulsification dewatering of target emulsified oil wastewater through cyclone and spiral electric field. The data acquisition unit is used for collecting demand information. The pretreatment unit is used for initial water content state detection of the target emulsified oil wastewater, and a pretreatment mode is selected according to the initial water content state. The data analysis unit is used for determining an analysis adjustment mode according to a dewatering state, and the analysis adjustment mode is used for detecting a reference value of impurity content or adjusting dewatering parameters. In the adjustment of the dewatering parameters, a first pressure drop and a second pressure drop are detected to determine a pressure drop state, and the data analysis unit determines a pulse voltage adjustment mode according to the pressure drop state. The working parameters are adjusted according to the quality state of actual emulsified oil wastewater and the dewatering effect, so that the precision of demulsification working parameters is improved, and the actual working demand is met.

The utility model relates to the technical field of crude oil electro-desalting, in particular to an oil-water feeding distributor for strengthening crude oil desalting and dewatering effects, which comprises a feeding main pipe and a plurality of distributing heads which are arranged side by side at intervals and are provided with inner cavities, and stuffing boxes for vertically dividing the inner cavities into distributing cavities and feeding cavities are arranged in the centers of the distributing heads. A plurality of corrugated plates which are arranged side by side at intervals are arranged in the stuffing box, the upper end and the lower end of a clamping cavity between every two adjacent corrugated plates are correspondingly communicated with a distribution cavity and a feeding cavity respectively, the feeding cavity is correspondingly communicated with a feeding main pipe through a feeding branch pipe, and a plurality of distribution holes are formed in the outer cavity wall of the distribution cavity; according to the oil-water feeding distributor, the oil-water separation effect can be enhanced by increasing the diameter of water drops entering an electric desalting tank.

The utility model relates to the technical field of oil field water pre-separation treatment, in particular to oil field multifunctional water pre-separation treatment equipment which comprises a first tank body and a second tank body, the first tank body is connected with the second tank body through a liquid pumping pipe, and a liquid-sand separation mechanism and a supporting plate are arranged in the first tank body. A mud and sand conveying mechanism arranged below the first tank body is connected with a liquid and sand separating mechanism, a liquid outlet is formed in the lower end of the right side of the first tank body, a gas-liquid folded plate, a defoaming net, a U-shaped plate, a mist catcher and a baffle are arranged in the second tank body, a liquid inlet is formed in the left side of the second tank body, and a flow guide plate is connected to the lower end of the liquid inlet. A safety valve and an exhaust port are arranged at the top of the second tank body, the mist catcher is connected with the exhaust port, and a drain outlet, an oil outlet and a water outlet are formed in the bottom of the second tank body. According to the utility model, equipment damage caused by silt deposition is avoided, foams generated by crude oil collision are reduced, and the quality and efficiency of oil field water pre-separation are improved.

The invention discloses a tubular water pre-separation and sewage oil removal system and method for oilfield produced liquid, and belongs to the technical field of oil-water separation. The system provided by the invention comprises a water pre-diversion structure for pre-diversion of produced liquid and a sewage oil removal structure for oil removal of a water phase discharged by the water pre-diversion structure, wherein the water pre-distribution structure comprises a T-shaped water distributor and a columnar cyclone water distributor connected with a water phase outlet of the T-shaped water distributor; the sewage oil removal structure comprises a bubble generator and a rotational flow air flotation separator, the bubble generator is connected with a water phase outlet of the columnar rotational flow water segregator through a centrifugal pump, and a dissolved gas phase outlet of the bubble generator is connected with the rotational flow air flotation separator. According to the tubular water pre-separation system and method for the oilfield produced liquid, operation is easy, the treatment process is short, the occupied area is small, and under the condition that an existing process is not changed, the adopted T-shaped water separator and the columnar cyclone separator can be directly connected with a system pipeline for water separation of the produced liquid.

A separation and purification device for an oil-water mixture is composed of a primary screening structure, a heating settling structure, a stirring structure and an exhaust structure, the heating settling structure is installed on the side face of the primary screening structure, the stirring structure is installed above the heating settling structure, and the stirring structure is installed on the side edge of the heating settling structure. The oil-water mixture firstly passes through the filter screen to filter insoluble substances in the oil-water mixture, the filter screen is hung on the oil storage tank, meanwhile, the infrared heater is arranged on the outer side of the dehydration tank to heat the oil-water mixture, the sedimentation efficiency is improved, the liquid pump is used for pumping out settled waste liquid, and the oil-water mixture is recycled. Then the emulsifier is put into the dehydration tank through the sealing top plug, then heating is performed to complete secondary separation and dehydration of the oil-water mixture, and in the whole dehydration process, an air pump is arranged to pump out waste gas in the dehydration tank. The oil-water mixture can be oil-polluted water, water-containing crude oil, kitchen oil and other oil-water mixtures.

The present application relates to a method for regenerating waste lubricant oils (WLO), particularly those that coagulate, using supercritical carbon dioxide (scCO2) extraction. The method uses a one-step high-pressure extraction system where waste oils are treated with scCO2 at controlled temperature and pressure conditions. The scCO2 dissolves the oils, leaving behind contaminants and additives. The method is effective for any WLO, and mixtures thereof, regardless of composition, effectively recovering oils even for coagulating waste oil, which conventional methods are not able to regenerate.

The utility model discloses automatic oil-water separation equipment for an oil field, which comprises a settling tank, a separating mechanism is arranged in the settling tank, the separating mechanism comprises two separating plates and a plurality of connecting blocks fixed between the two separating plates, the top of each separating plate is provided with a leak hole penetrating up and down, and the connecting blocks are fixedly connected with the separating plates through the leak holes. And a sealing plate is arranged above the leaking hole. By arranging the separating mechanism, an oil-water mixture enters the settling tank to be settled, oil and water are separated after a period of time, the separating mechanism slowly descends, the upper separating plate is located in oil, the lower separating plate is located in water, an oil-water contact area is formed between the two separating plates, and the leak hole is sealed by the sealing cover; the rubber air bag ring expands to seal the periphery of the partition plate, oil and water can be separated, oil and water can be discharged, oil and water cannot be mixed again, the middle oil-water contact part and other oil-water contact parts are discharged together, the oil-water contact parts and other oil-water contact parts are accumulated, and precipitation separation is carried out again.

The invention relates to a dynamic ultrasonic demulsification device and a demulsification method. The dynamic ultrasonic demulsification device comprises a resonant cavity, a piezoelectric transducer, a multi-stage feeding and discharging system and a real-time monitoring module, the piezoelectric transducers are distributed oppositely in an array mode in the horizontal direction of the outer side of the resonant cavity to form an ultrasonic generation array, and the acoustic axes of the oppositely-arranged piezoelectric transducers coincide in the horizontal direction to form a coherent standing wave field; by means of a coherent standing wave field formed by piezoelectric transducers which are distributed oppositely in an array mode in the horizontal direction, the problem that energy distribution in the ultrasonic propagation direction is asymmetric due to arrangement of the transducers on one side and the problem that the separation efficiency is low due to the fact that sound force and gravity directions conflict in traditional vertical radiation ultrasonic demulsification are solved. Uniform coverage of a sound field in the resonant cavity is ensured, and the inhibition effect of the sound field on the sedimentation process is avoided.

The invention discloses a crude oil produced liquid deep split-flow dehydration device and a dehydration method, and belongs to the field of crude oil dehydration, the dehydration device comprises a gas-liquid separator used for removing gas in crude oil produced liquid; the hydrocyclone is used for carrying out oil-water separation on the crude oil produced liquid after the gas is removed by the gas-liquid separator, and respectively outputting two paths of overflow liquid and underflow liquid with different water contents; and the electric coalescer is used for respectively receiving the overflow liquid and the underflow liquid output by the cyclone, selecting different electric field parameters for dehydration according to different water contents of the overflow liquid and the underflow liquid, and discharging crude oil with qualified water content. The invention provides a treatment process combining the hydrocyclone and the electric coalescer, the hydrocyclone has the functions of pre-dehydration and demulsification, and then enters the electric coalescer for deep dehydration, so that the dehydration effect is effectively improved, and meanwhile, the treatment cost is also reduced. And the swirler and the electric coalescer are convenient to operate and relatively low in energy consumption. The problems of short circuit and electric field collapse can be avoided while the deep dehydration effect is ensured.

The present disclosure relates to novel and advantageous systems, methods, and devices for processing crude oil. Particularly, the present disclosure relates to novel and advantageous systems, methods, and devices for separating crude oil into components. More particularly, the present disclosure relates to novel and advantageous systems, methods, and devices for separating crude oil into components of different densities.

The invention belongs to the technical field of petroleum processing, and particularly relates to an oil-water-gas separation device in petroleum exploitation, which comprises a separation tank, a feeding pipe is mounted at the top of the separation tank, and the feeding pipe is communicated to the interior of the separation tank; a first filter screen is fixedly connected to the interior of the separation tank; a second filter screen is fixedly connected to the interior of the separation tank; a separation plate is fixedly connected to the interior of the separation tank; the isolation plate is arranged on one side, far away from the feeding pipe, in the separation tank; the top of the separation tank is communicated with a gas outlet pipe; the inner side wall of the bottom of the separation tank is communicated with a water outlet pipe; by arranging the first filter screen and the second filter screen in the separation tank, part of gravel raw materials in the petroleum raw materials can be intercepted, so that the purity of oil, water and gas treated by the separation tank can be improved, and the problems that gravel impurities in the petroleum raw materials affect and damage a subsequent petroleum treatment device are solved.

The invention discloses a rotational flow gas pre-separation and coalescence dehydration integrated device suitable for a high-water-content oil field. The device is characterized in that a main body is internally provided with a containing cavity, the top of the main body is provided with a liquid inlet, and the bottom of the main body is provided with a drain outlet; the liquid inlet component is arranged at the top of the body; the atomizing part is arranged in the mounting cavity; the blocking component is arranged in the mounting cavity; the air outlet end is arranged above the atomizing part; the first liquid outlet end is arranged on the main body; mixed liquid is atomized through the atomization component, natural gas is separated preliminarily, the contact area and the collision rate are increased by additionally arranging the blocking components in different arrangement modes and achieving the synergistic effect with the atomization component, the natural gas separation efficiency is further improved, demulsification is effectively achieved, and dissolved gas in crude oil is released; mixed liquid particles carried in natural gas are separated in a heating-rotational flow-condensation mode of the liquid removal component, liquid particles carried in the gas are effectively removed, and the gas purity is improved.

The invention relates to the technical field of crude oil dehydration methods and devices, in particular to a divergent coalescence double-rectifying-plate efficient dehydration device and method.Crude oil flows rightwards in a coalescence area in an S shape, namely S-shaped divergent flow channels are formed among coalescence balls distributed at intervals in a matrix mode in the fluid flowing direction, and when the crude oil flows through the S-shaped divergent flow channels, the crude oil flows through the S-shaped divergent flow channels under the action of buoyancy, and the crude oil is separated from the coalescence balls. Large oil drops formed by collision gradually float to the top of the coalescence area and then enter the settling area for settling separation. According to the divergent coalescence double-rectifying-plate efficient dehydration device, the S-shaped divergent flow channel is designed, large oil drops formed by collision can gradually float upwards to the top of a coalescence area under the action of buoyancy, fluid flow is not limited in a fixed flow channel space formed by different layers of corrugated plates any more, and therefore the collision probability of the oil drops is greatly increased, and meanwhile, the oil drops are prevented from falling off. Double rectifying plates are designed, the effect of rectifying, energy dissipation and vortex reduction is utilized, disordered flow in a settlement area is eliminated to the maximum extent, and separation and settlement time is shortened.