Energy-saving type offshore oil platform crude oil recovery device and using method thereof

Abstract

The invention discloses an energy-saving offshore oil platform crude oil recovery device which comprises a treatment tank, a cover body is placed at the top of the treatment tank, the left side and the right side of the top of the cover body are connected with an air suction pipe and a liquid suction component respectively, a metering pump is installed on the rear side of the top of the cover body, and a filling pipe is arranged in the center of the top of the treatment tank. Through cooperative use of the treatment tank, the connecting ring plate, the cover body, the filling pipe, a liquid outlet pipe, a metering pump, a liquid drawing pipe, a liquid pumping component and a stirring component, the device has the advantage of providing a closed recycling environment, and the top of the treatment tank can be sealed, so that when the treatment tank shakes, liquid in the treatment tank cannot overflow; the use environmental protection property of the offshore oil platform is improved; furthermore, the upper and lower honeycomb-shaped guide plates are used, so that the water body can be divided into small units to flow, and the wave resonance is inhibited; and through the rubber shock insulation pad, the vibration transmission efficiency between the recovery device equipment and the offshore oil platform deck is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of marine crude oil recovery, in particular to an energy-saving marine oil platform crude oil recovery device and its use method. BACKGROUND

[0002] Marine crude oil refers to oil resources buried in seabed sedimentary rocks and bedrock, which needs to undergo geological evolution for millions of years to form, and has special distribution and technical development characteristics. In the process of marine crude oil exploitation, in order to recover the leaked crude oil, a crude oil recovery device is needed.

[0003] After searching, patent No. CN216516055U, named an energy-saving marine oil platform crude oil recovery device, includes a discharge sink, the front surface of the discharge sink is communicated with the water inlet pipe, the right side wall of the discharge sink is communicated with the left end of the drain pipe, the right end of the drain pipe is provided with a water elbow, the upper surface of the discharge sink is provided with a support rod, and the support rod is fixedly connected with a hydraulic cylinder. The energy-saving marine oil platform crude oil recovery device facilitates the support of the float box through the cooperation of the support rod and the hydraulic cylinder, reduces the vibration caused by the operation of the water pump through the cooperation of the first pad, the second pad and the spring, makes the production water level in the discharge sink float up and down, facilitates the stable work of the liquid level sensor through the cooperation of the fixing plate and the connecting hole, and the crude oil accumulated to a certain height is detected by the liquid level sensor. The detected data is transmitted to the central processor, so that the water pump starts to work. Through research and analysis, it is found that although the crude oil can be recovered, there are still the following shortcomings to some extent.

[0004] For example, the top of the discharge sink is open. Since the marine oil platform is used for oil production in the sea, it will sway under the influence of sea waves, which is easy to cause the liquid in the discharge sink to splash out of the top, thereby polluting the marine oil platform. To solve the above technical problems, we have designed an energy-saving marine oil platform crude oil recovery device and its use method. SUMMARY

[0005] The present application aims to provide an energy-saving marine oil platform crude oil recovery device and its use method, which has the advantage of providing a closed recovery environment, and solves the problem that the top of the discharge sink is open, and the marine oil platform is used for oil production in the sea, which will sway under the influence of sea waves, which is easy to cause the liquid in the discharge sink to splash out of the top, thereby polluting the marine oil platform.

[0006] In order to achieve the above object, the present application provides the following technical scheme: an energy-saving offshore oil platform crude oil recovery device, comprising a treatment tank, a cover body is arranged on the top of the treatment tank, an air extraction pipe and a liquid extraction component are respectively connected to the left and right sides of the top of the cover body, a metering pump is installed on the rear side of the top of the cover body, a filling pipe is arranged at the center of the top of the treatment tank, the bottom of the filling pipe penetrates through the cover body and is connected with a liquid outlet cover, a liquid outlet pipe is connected to the liquid outlet end of the metering pump, an agitating component is jointly installed on the side, away from the metering pump, of the liquid outlet pipe and the inside of the filling pipe, a plurality of positioning grooves are formed in the top of the inner wall of the treatment tank, a flow guiding component is jointly installed in the inside of the plurality of positioning grooves, a plurality of hangers are installed on the flow guiding component, the top of the hanger is connected with the top of the inner wall of the cover body, the bottom of the liquid extraction component penetrates through the cover body and extends into the inside of the flow guiding component, a heating component is installed in the inside of the flow guiding component, a filtering component is installed on the bottom of the inner wall of the treatment tank, and the flow guiding component comprises a conical flow guiding cover and an outer cylinder.

[0007] Preferably, a connecting ring plate is fixedly sleeved on the top of the outer part of the treatment tank and the bottom of the outer part of the cover body, the upper and lower two connecting ring plates are connected through a plurality of bolts, and a plurality of hoisting screw holes are formed in the outer side of the top of the cover body.

[0008] Preferably, a liquid suction pipe is connected to the liquid inlet end of the metering pump, the side, away from the metering pump, of the liquid suction pipe is connected with an external demulsifier storage tank through a flange plate, a drain pipe is connected to the bottom of the treatment tank, the side, away from the treatment tank, of the drain pipe is connected with a water conveying pipeline of a water treatment equipment through a flange plate, and the side, away from the cover body, of the air extraction pipe is connected with an external waste gas treatment equipment through a flange plate.

[0009] Preferably, a transparent tempered glass plate is inlaid through the front side of the outer part of the treatment tank, a support frame is fixedly sleeved on the bottom of the outer part of the treatment tank, a rubber shock isolation pad is inlaid on the bottom of the support frame, and the support frame and the rubber shock isolation pad are connected with the offshore oil platform through a plurality of bolts.

[0010] Preferably, a plurality of positioning blocks are connected to the top of the outer part of the outer cylinder, the positioning blocks are located in the inside of the positioning grooves, a plurality of connecting blocks are connected to the bottom of the inner wall of the outer cylinder, a temperature sensor is inlaid on the bottom of the connecting block, the conical flow guiding cover is located directly below the filling pipe, a drainage cylinder is fixedly connected to the bottom of the conical flow guiding cover, a plurality of flow windows are formed in the bottom of the outer part of the drainage cylinder, a flow guiding ring is jointly sleeved on the outer part of the drainage cylinder and the conical flow guiding cover, a plurality of flow grooves are formed in the top of the flow guiding ring, the inside of the plurality of connecting blocks is connected with the drainage cylinder, and the bottom of the hanger is connected with the conical flow guiding cover.

[0011] Preferably, the stirring component comprises a connecting sleeve, the liquid outlet pipe is connected to the connecting sleeve away from the side of the metering pump, the inner wall of the connecting sleeve is movably connected with the injection pipe through a sealing bearing, the bottom of the injection pipe penetrates into the inside of the filling pipe, a plurality of liquid outlet holes are formed on the outside of the injection pipe, the top and bottom of the outside of the injection pipe are respectively sleeved with a damping sleeve and a bearing sleeve, a plurality of fan blades are connected to the outside of the injection pipe between the damping sleeve and the bearing sleeve, the top of the fan blade is provided with an arc surface, the liquid outlet hole is also located between the damping sleeve and the bearing sleeve, the bottom of the injection pipe is connected with a stirring rod, the bottom of the stirring rod penetrates through the filling pipe, the conical flow guide cover, the liquid pumping component and the heating component and is connected with a cleaning plate, the inner wall of the bearing sleeve is movably connected with the outside of the injection pipe through a bearing, the outside of the bearing sleeve and the outside of the damping sleeve are both connected with a mounting block, the side of the mounting block away from the bearing sleeve and the damping sleeve is connected with the inner wall of the filling pipe.

[0012] Preferably, the liquid pumping component comprises a liquid pumping pipe, the liquid pumping pipe is located at the top of the treatment tank, the side of the liquid pumping pipe away from the treatment tank is connected with an external liquid pumping pump through a flange plate, the bottom of the liquid pumping pipe penetrates through the cover body and the conical flow guide cover and is connected with an extension pipe, the bottom of the extension pipe is connected with a suction ring pipe, the bottom of the suction ring pipe is connected with a plurality of suction heads, the front and rear ends of the inner wall of the suction ring pipe are both connected with positioning plates, the opposite end of the two positioning plates is connected with a connecting plate, the top of the connecting plate is connected with an electric telescopic rod at both ends, the top of the electric telescopic rod is connected with the top of the inner wall of the conical flow guide cover.

[0013] Preferably, the heating component comprises a plurality of heating columns, the top of the plurality of heating columns is connected with the top of the inner wall of the conical flow guide cover, the bottom of the heating column is connected with a connecting disc, a plurality of restraint holes are formed on the outside of the top of the connecting disc, a connecting ring is mounted on the inner wall of the restraint hole, a modified polypropylene melt-blown non-woven fiber web is connected between the plurality of connecting rings.

[0014] Preferably, a threaded ring groove is formed on the outer side of the bottom of the inner wall of the treatment tank, the filtering component comprises a threaded ring, the outer part of the threaded ring is screwed with the inner wall of the threaded ring groove, the top of the threaded ring is connected with a lower filtering frame, the top of the lower filtering frame is connected with a plurality of supporting inclined rods, the top of the plurality of supporting inclined rods is jointly connected with an upper filtering frame, the inner walls of the lower filtering frame and the upper filtering frame are both connected with honeycomb flow guides, the inner wall of the honeycomb flow guide at the top is inlaid with water-resistant honeycomb activated carbon, the inner wall of the honeycomb flow guide at the bottom is inlaid with oil-repellent modified nano sponge, the top of the upper filtering frame is connected with a plurality of supporting columns, the top of the plurality of supporting columns is jointly connected with a lower mounting ring, the top of the lower mounting ring is provided with a lower sealing groove, the inner wall of the lower sealing groove is inlaid with a sealing ring, the top of the lower mounting ring is provided with a filtering ring, the bottom of the filtering ring is provided with an upper sealing groove matched with the sealing ring, the inner wall of the filtering ring is connected with a plurality of upper connecting blocks, the inner wall of the lower mounting ring is connected with a plurality of lower connecting blocks, the upper connecting blocks and the lower connecting blocks are connected through bolts, and the inner wall of the filtering ring is mounted with an ultrafiltration membrane.

[0015] A use method of the energy-saving offshore oil platform crude oil recovery device, the use method comprises the energy-saving offshore oil platform crude oil recovery device, and the use method further comprises the following steps. Step one: the suction pipe is connected with external waste gas treatment equipment through a flange plate, the liquid suction pipe is connected with an external liquid suction pump through a flange plate, the drain pipe is connected with a water conveying pipeline of external water treatment equipment through a flange plate, and the liquid suction pipe is connected with an external demulsifier storage tank through a flange plate. The mixed liquid (hereinafter referred to as mixed liquid) of seawater and crude oil after desalination treatment is injected into the filling pipe through the external water injection pipe. At the same time, the metering pump is opened by using the external control cabinet of the crude oil recovery device, so that the demulsifier is injected into the filling pipe, and the temperature sensor and the liquid level sensor are opened at the same time.

[0016] Step two: the mixed liquid flows in the filling pipe, impacts the arc surface on the fan blade, and makes the fan blade rotate, the fan blade drives the injection pipe to rotate, the demulsifier in the injection pipe is sprayed out through the liquid outlet hole, and the demulsifier is uniformly distributed in the mixed liquid.

[0017] Step three: the mixed liquid flows in the filling pipe and is finally sprayed out through the liquid outlet cover, flows to the edge of the conical flow guide cover, overflows from the flow slot, flows downward along the outer wall of the flow guide cylinder, and finally falls on the top of the filtering component. The temperature of the mixed liquid is detected by using the temperature sensor, and when the temperature of the mixed liquid is too low, the heating column is opened to heat the mixed liquid.

[0018] Step four: the oil-water separation is realized at the top of the filtering component, the water continues to move downward after passing through the ultrafiltration membrane, and then passes through the honeycomb-shaped flow guide plate at the top and the water-resistant honeycomb activated carbon and the honeycomb-shaped flow guide plate and the oleophobic modified nanometer sponge at the bottom, and finally is discharged from the drain pipe for subsequent treatment.

[0019] Compared with the prior art, the present application has the following advantages: 1、The present application has the advantage of providing a closed recovery environment by the cooperation of the treatment tank, the connecting ring plate, the cover body, the filling pipe, the liquid outlet pipe, the metering pump, the liquid suction pipe, the liquid suction component and the stirring component, which can provide sealing for the top of the treatment tank, so that when the treatment tank shakes, the liquid in the treatment tank will not overflow, improving the environmental protection of the offshore oil platform; the use of the upper and lower two honeycomb-shaped flow guide plates can divide the water body into small units to flow, thereby inhibiting wave resonance; the rubber shock isolation pad reduces the vibration transmission efficiency between the recovery device equipment and the deck of the offshore oil platform.

[0020] 2、The use of the stirring component causes the mixed liquid to flow in the filling pipe to impact the arc surface on the fan blade, causing the fan blade to rotate, which drives the injection pipe to rotate, causing the demulsifier in the injection pipe to be sprayed out through the liquid outlet hole, so that the demulsifier is uniformly distributed in the mixed liquid; further, the shear force generated by the rotation of the fan blade can directly tear the emulsion film in the mixed liquid, causing the demulsifier to react quickly with the emulsified oil; further, the use of the damping sleeve can increase the frictional force received by the injection pipe during rotation, thereby reducing the rotation speed of the injection pipe and avoiding excessive rotation speed of the fan blade, which generates high-speed shear force that makes the oil droplets too small, even forming a temporary stable emulsion that makes the oil-water separation time longer; further, the rotation of the injection pipe drives the stirring rod at the bottom of the injection pipe to rotate, which drives the cleaning plate to rotate, which can clean the top of the ultrafiltration membrane during rotation; the mixing of the demulsifier and the mixed liquid and the fragmentation of the emulsion film are completed by the driving of the fan blade and the injection pipe during the flow of the mixed liquid, which reduces energy consumption and embodies energy saving.

[0021] 3、The use of the flow guide component causes the mixed liquid to flow to the edge of the conical flow guide cover, which is blocked by the flow guide ring to control its flow rate, and then the mixed liquid overflows from the flow slot and flows down the outer wall of the flow guide cylinder, which prevents the liquid level at the top of the filtering component from fluctuating too much, which is beneficial to the separation of crude oil and water, and also avoids the large drop of the mixed liquid, which can impact the ultrafiltration membrane and greatly reduce the generation of foam, which is beneficial to the separation of oil and water. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The present application is a structural schematic diagram; Figure 2 The present application is a structural schematic diagram of the treatment tank; Figure 3 is a schematic view of the flow guide component structure of the present application; Figure 4 is a top view of the present application Figure 3 ; Figure 5 is an exploded view of the filter component structure of the present application; Figure 6 is a schematic view of the stirring component structure of the present application; Figure 7 is a schematic view of the liquid pumping component structure of the present application; Figure 8 is an exploded view of the flow guide component structure of the present application; Figure 9 is a bottom view of the present application Figure 8 ; Figure 10 is a schematic view of the heating component structure of the present application.

[0023] In the figure: 1, support frame; 2, transparent tempered glass plate; 3, treatment tank; 4, connecting ring plate; 5, cover body; 6, filling pipe; 7, air pumping pipe; 8, liquid outlet pipe; 9, metering pump; 10, liquid pumping pipe; 11, liquid pumping component; 111, suction head; 112, adsorption ring pipe; 113, electric telescopic rod; 114, positioning plate; 115, connecting plate; 116, telescopic pipe; 117, liquid pumping pipe; 12, drain pipe; 13, stirring component; 131, mounting block; 132, fan blade; 133, liquid outlet hole; 134, stirring rod; 135, cleaning plate; 136, bearing sleeve; 137, damping sleeve; 138, connecting sleeve; 139, injection pipe; 14, positioning groove; 15, liquid outlet cover; 16, suspension rod; 17, flow guide component; 171, flow slot; 172, conical flow guide cover; 173, flow guide ring; 174, flow guide cylinder; 175, flow window; 176, positioning block; 177, outer cylinder; 178, temperature sensor; 179, connecting block; 18, heating component; 181, heating column; 182, modified polypropylene melt-blown nonwoven fiber web; 183, connecting disc; 184, binding hole; 19, filter component; 191, upper connecting block; 192, filter ring; 193, sealing ring; 194, lower sealing groove; 195, lower mounting ring; 196, support column; 197, support inclined rod; 198, lower filter frame; 199, honeycomb-shaped flow guide plate; 1910, upper filter frame; 1911, lower connecting block; 1912, threaded ring. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-10The utility model provides an energy -conserving type offshore oil platform crude oil's recovery unit, including processing tank 3, the top of processing tank 3 is placed with cover 5, the left and right sides of cover 5 top are connected with suction pipe 7 and suction liquid part 11 respectively, the rear side of cover 5 top is installed with metering pump 9, the center of processing tank 3 top is provided with filling pipe 6, the bottom of filling pipe 6 penetrates cover 5 and is connected with liquid outlet cover 15, the liquid outlet of metering pump 9 is connected with liquid outlet pipe 8, the side away from metering pump 9 of liquid outlet pipe 8 and the inside of filling pipe 6 are jointly installed with agitating part 13, the top of processing tank 3 inner wall is provided with a plurality of locating grooves 14, a plurality of locating grooves 14 are jointly installed with flow guide part 17, a plurality of hangers 16 are installed on flow guide part 17, the top of hanger 16 is connected with the top of cover 5 inner wall, the bottom of suction liquid part 11 penetrates cover 5 and extends to the inside of flow guide part 17, heating part 18 is installed in the inside of flow guide part 17, filter part 19 is installed on the bottom of processing tank 3 inner wall, flow guide part 17 includes conical flow guide cover 172 and outer tube 177, filling pipe 6 is docked with the water injection pipeline of outside through flange.

[0025] The top of the outside of processing tank 3 and the bottom of the outside of cover 5 are fixedly sleeved with connecting ring plate 4, the two connecting ring plates 4 are connected through a plurality of bolts, a plurality of hoisting screw holes are formed in the outside of the top of cover 5, the cooperation of connecting ring plate 4 and the bolt facilitates the stable installation of cover 5 on the top of processing tank 3, so that cover 5 is used to seal processing tank 3, and the hoisting screw holes facilitate the installation of the hoisting lock, which is beneficial to the hoisting operation of cover 5 when cover 5 is removed from the top of processing tank 3.

[0026] The liquid inlet of metering pump 9 is connected with liquid suction pipe 10, the side away from metering pump 9 of liquid suction pipe 10 is connected with the demulsifier storage tank of outside through flange, the bottom of processing tank 3 is connected with drain pipe 12, the side away from processing tank 3 of drain pipe 12 is connected with the water conveying pipeline of water treatment equipment through flange, the side away from cover 5 of suction pipe 7 is connected with the waste gas treatment equipment of outside through flange, the water at the bottom of processing tank 3 is conveniently discharged through drain pipe 12, the waste gas in processing tank 3 is extracted when the waste gas treatment equipment of outside is opened, so that the waste gas is prevented from gathering in processing tank 3.

[0027] The front side of the outside of processing tank 3 is penetrated with transparent tempered glass plate 2, the bottom of the outside of processing tank 3 is fixedly sleeved with support frame 1, the bottom of support frame 1 is inlaid with rubber shock insulation pad, and the support frame 1 and the rubber shock insulation pad are connected with the offshore oil platform through a plurality of bolts, the vibration transmission efficiency between the recovery unit equipment and the deck of offshore oil platform is reduced through the rubber shock insulation pad (thickness >= 50mm), and the support frame 1 is used to support and position processing tank 3.

[0028] The top of the outer cylinder 177 is connected with a plurality of positioning blocks 176 which are located inside the positioning groove 14, the bottom of the inner wall of the outer cylinder 177 is connected with a plurality of connecting blocks 179, the bottom of the connecting block 179 is inlaid with a temperature sensor 178, the conical flow guide cover 172 is located directly below the filling pipe 6, the bottom of the conical flow guide cover 172 is fixedly connected with a flow guide cylinder 174, a plurality of flow windows 175 are formed in the bottom of the flow guide cylinder 174, the flow guide cylinder 174 and the conical flow guide cover 172 are jointly sleeved with a flow guide ring 173, a plurality of flow grooves 171 are formed in the top of the flow guide ring 173, the inner side of the connecting block 179 is connected with the flow guide cylinder 174, and the bottom of the suspender 16 is connected with the conical flow guide cover 172; through cooperation of the positioning block 176 and the positioning groove 14, the outer cylinder 177 is conveniently and stably installed inside the treatment tank 3, after the cover body 5 is installed on the top of the treatment tank 3, the positioning block 176 can be positioned by the cover body 5, and the outer side of the outer cylinder 177 is in contact with the inner wall of the treatment tank 3; through the connecting block 179, the temperature sensor 178 is conveniently installed, and the outer cylinder 177 and the flow guide cylinder 174 can be connected; the surface of the top of the outer cylinder 177 is on the same plane as the surface of the top of the treatment tank 3; through the conical flow guide cover 172, the liquid discharged from the filling pipe 6 can be guided, so that the liquid discharged from the filling pipe 6 will not directly fall into the treatment tank 3, so that a large amount of turbulence occurs; the outer cylinder 177, the positioning block 176, the connecting block 179, the flow guide cylinder 174 and the conical flow guide cover 172 are all made of oil-repellent materials; The stirring component 13 comprises a connecting sleeve 138, the liquid outlet pipe 8 is connected with the connecting sleeve 138 away from one side of the metering pump 9, the inner wall of the connecting sleeve 138 is movably connected with the injection pipe 139 through a sealing bearing, the bottom of the injection pipe 139 penetrates into the inside of the filling pipe 6, a plurality of liquid outlet holes 133 are formed in the outside of the injection pipe 139, the top and bottom of the outside of the injection pipe 139 are respectively sleeved with the damping sleeve 137 and the bearing sleeve 136, a plurality of fan blades 132 are connected between the outside of the injection pipe 139 and the damping sleeve 137 and the bearing sleeve 136, the top of the fan blade 132 is provided with an arc surface, the liquid outlet hole 133 is also located between the damping sleeve 137 and the bearing sleeve 136, the bottom of the injection pipe 139 is connected with the stirring rod 134, the bottom of the stirring rod 134 penetrates through the filling pipe 6, the conical flow guide cover 172, the liquid pumping component 11 and the heating component 18 and is connected with the cleaning plate 135, the inner wall of the bearing sleeve 136 and the outside of the injection pipe 139 are movably connected through a bearing, the outside of the bearing sleeve 136 and the outside of the damping sleeve 137 are both connected with the mounting block 131, one side of the mounting block 131 away from the bearing sleeve 136 and the damping sleeve 137 is connected with the inner wall of the filling pipe 6; through the damping sleeve 137, the frictional force in the rotating process of the injection pipe 139 can be increased, the rotation of the injection pipe 139 is slowed down, the rotation speed of the injection pipe 139 and the fan blade 132 is avoided to be too fast, the high-speed shearing force is avoided to make the oil droplets too small, even to form a temporary stable emulsion, at this time, a longer time is needed to complete the oil-water separation. The cleaning plate 135 is used in cooperation with the ultrafiltration membrane, the oil sludge deposited on the surface of the ultrafiltration membrane is avoided; through the arc surface, when the water flows against the fan blade 132, the fan blade 132 can be rotated.

[0029] The liquid pumping component 11 comprises a liquid pumping pipe 117, the liquid pumping pipe 117 is located at the top of the treatment tank 3, one side of the liquid pumping pipe 117 away from the treatment tank 3 is connected with an external liquid pumping pump through a flange, the bottom of the liquid pumping pipe 117 penetrates through the cover body 5 and the conical flow guide cover 172 and is connected with the telescopic pipe 116, the bottom of the telescopic pipe 116 is connected with the adsorption ring pipe 112, the bottom of the adsorption ring pipe 112 is connected with a plurality of suction heads 111, the front and back ends of the inner wall of the adsorption ring pipe 112 are both connected with the positioning plate 114, the opposite ends of the two positioning plates 114 are connected with the connecting plate 115, the two ends of the top of the connecting plate 115 are both connected with the electric telescopic rod 113, the top of the electric telescopic rod 113 is connected with the top of the inner wall of the conical flow guide cover 172; the bottom of the positioning plate 114 is provided with a liquid level sensor, the height of the suction head 111 is lower than the height of the liquid level sensor; the center of the top of the connecting plate 115, the center of the top of the conical flow guide cover 172, the center of the top of one of the heating columns 181 and the center of the top of one of the connecting discs 183 are all provided with the rotating hole used in cooperation with the stirring rod 134, the inner wall of the rotating hole and the stirring rod 134 are movably connected through a sealing bearing; the modified polypropylene melt-blown non-woven fiber web 182 is distributed with the adsorption ring pipe 112 and the plurality of suction heads 111 in a staggered manner, and the two do not interfere with each other.

[0030] The heating component 18 comprises a plurality of heating columns 181, the top of each of the plurality of heating columns 181 is connected with the top of the inner wall of the conical fairing 172, the bottom of the heating column 181 is connected with a connecting disc 183, a plurality of restraint holes 184 are arranged on the top of the outer side of the connecting disc 183, a connecting ring is mounted on the inner wall of the restraint hole 184, and a modified polypropylene melt-blown non-woven fabric 182 is commonly connected between the plurality of connecting rings; through the cooperation of the restraint hole 184 and the connecting ring, the modified polypropylene melt-blown non-woven fabric 182 is conveniently installed, and the modified polypropylene melt-blown non-woven fabric 182 is used, so that the micro oil droplets are wetted and spread on the fiber surface, collide and polymerize into large oil beads (the diameter is increased by more than 10 times), and the buoyancy is significantly improved.

[0031] A threaded ring groove is arranged on the outer side of the bottom inner wall of the treatment tank 3, and the filtering component 19 comprises a threaded ring 1912, the outer part of the threaded ring 1912 is threadedly connected with the inner wall of the threaded ring groove, the top of the threaded ring 1912 is connected with a lower filtering frame 198, the top of the lower filtering frame 198 is connected with a plurality of supporting inclined rods 197, the top of the plurality of supporting inclined rods 197 is commonly connected with an upper filtering frame 1910, the inner walls of the lower filtering frame 198 and the upper filtering frame 1910 are both connected with honeycomb flow guides 199, the inner wall of the top honeycomb flow guide 199 is inlaid with water-resistant honeycomb activated carbon, the inner wall of the bottom honeycomb flow guide 199 is inlaid with oil-repellent modified nano sponge, the top of the upper filtering frame 1910 is connected with a plurality of supporting columns 196, the top of the plurality of supporting columns 196 is commonly connected with a lower mounting ring 195, a lower sealing groove 194 is arranged on the top of the lower mounting ring 195, the inner wall of the lower sealing groove 194 is inlaid with a sealing ring 193, the top of the lower mounting ring 195 is provided with a filtering ring 192, the bottom of the filtering ring 192 is provided with an upper sealing groove matched with the sealing ring 193, the inner wall of the filtering ring 192 is connected with a plurality of upper connecting blocks 191, the inner wall of the lower mounting ring 195 is connected with a plurality of lower connecting blocks 1911, the upper connecting blocks 191 and the lower connecting blocks 1911 are connected through bolts, and the inner wall of the filtering ring 192 is mounted with an ultrafiltration membrane; through the threaded ring groove, the threaded ring 1912 is conveniently installed, so that the filtering component 19 is installed in the inside of the treatment tank 3; the oil-repellent modified nano sponge is used, which is a melamine formaldehyde resin-based nano sponge, is hydrophobically modified by polydimethylsiloxane (PDMS), and realizes super oil-wetting characteristics (water contact angle > 150°, oil contact angle < 10°); the oil absorption capacity is 120 to 140 times of the weight, and the oil-repellent modified nano sponge can be recycled more than 5 times after being squeezed under pressure; the water-resistant honeycomb activated carbon has a pore size of 1.5-3 nm and a specific surface area of ≥1000 m² / g, is specially used for capturing light hydrocarbons, has a honeycomb channel density of 400-600 holes / ㎡, a water flow resistance coefficient of only 0.03, and a pressure drop that is 40% lower than that of traditional fillers.

[0032] A method for using the energy-saving offshore oil platform crude oil recovery device, the method comprises the energy-saving offshore oil platform crude oil recovery device, and the method further comprises the following steps: Step one: the filling pipe 6 is connected with the external water injection pipeline through the flange plate, the air extraction pipe 7 is connected with the external waste gas treatment equipment through the flange plate, the liquid extraction pipe 117 is connected with the external liquid extraction pump through the flange plate, the water discharge pipe 12 is connected with the water conveying pipeline of the external water treatment equipment through the flange plate, and the liquid suction pipe 10 is connected with the external demulsifier storage tank through the flange plate. The mixed liquid (hereinafter referred to as mixed liquid) of seawater treated by desalination and crude oil is injected into the filling pipe 6 through the external water injection pipe. At the same time, the external control cabinet of the crude oil recovery device is used to control the metering pump 9 to be opened, so that the demulsifier is injected into the filling pipe 6, and the temperature sensor 178 and the liquid level sensor are opened at the same time.

[0033] Step two: the mixed liquid flows in the filling pipe 6, impacts the arc surface on the fan blade 132, and makes the fan blade 132 rotate, the fan blade 132 drives the injection pipe 139 to rotate, the demulsifier in the injection pipe 139 is sprayed out through the liquid outlet hole 133, and the demulsifier is uniformly distributed in the mixed liquid.

[0034] Step three: the mixed liquid flows in the filling pipe 6 and is finally sprayed out through the liquid outlet cover 15, flows to the edge of the conical flow guide cover 172, overflows from the flow slot 171, flows downward along the outer wall of the flow guide cylinder 174, and finally falls on the top of the filter part 19. The temperature sensor 178 is used to detect the temperature of the mixed liquid, and when the temperature of the mixed liquid is too low, the heating column 181 is opened to heat the mixed liquid.

[0035] Step four: the mixed liquid realizes oil-water separation on the top of the filter part 19, the water continues to move downward after passing through the ultrafiltration membrane, passes through the honeycomb-shaped flow guide plate 199 and the water-resistant honeycomb activated carbon at the top and the honeycomb-shaped flow guide plate 199 and the oil-repellent modified nanometer sponge at the bottom in turn, and finally flows out from the water discharge pipe 12 for subsequent treatment.

[0036] When in use, the filling pipe 6 is connected with the external water injection pipeline through the flange plate, the air extraction pipe 7 is connected with the external waste gas treatment equipment through the flange plate, the liquid extraction pipe 117 is connected with the external liquid extraction pump through the flange plate, the water discharge pipe 12 is connected with the water conveying pipeline of the external water treatment equipment through the flange plate, and the liquid suction pipe 10 is connected with the external demulsifier storage tank through the flange plate. The mixed liquid (hereinafter referred to as mixed liquid) of seawater treated by desalination and crude oil is injected into the filling pipe 6 through the external water injection pipe. At the same time, the external control cabinet of the crude oil recovery device is used to control the metering pump 9 to be opened, so that the demulsifier is injected into the filling pipe 6, and the temperature sensor 178 and the liquid level sensor are opened at the same time.

[0037] The arc surface on the fan blade 132 is impacted by the mixed liquid flowing in the filling pipe 6, so that the fan blade 132 rotates, the injection pipe 139 rotates driven by the fan blade 132, the demulsifier in the injection pipe 139 is sprayed out through the liquid outlet hole 133, so that the demulsifier is uniformly distributed in the mixed liquid; further, the shear force generated by the rotation of the fan blade 132 can directly tear the emulsion film in the mixed liquid, so that the demulsifier and the emulsified oil react quickly; further, by using the damping sleeve 137, the friction force received by the injection pipe 139 during rotation can be increased, the rotation of the injection pipe 139 is slowed down, the rotation speed of the fan blade 132 is avoided to be too fast, the high-speed shear force generated by the high-speed rotation speed makes the oil droplets too small, even forms a temporary stable emulsion, so that the oil-water separation time becomes longer (rotation speed: 150-200 rpm); further, the rotation of the injection pipe 139 drives the stirring rod 134 at the bottom of the injection pipe 139 to rotate, the cleaning plate 135 rotates driven by the rotation of the stirring rod 134, the top of the ultrafiltration membrane can be cleaned during the rotation of the cleaning plate 135, so that the oil sludge deposited on the top of the ultrafiltration membrane due to long-time treatment of the mixed liquid is avoided, thereby affecting the subsequent treatment of the mixed liquid; The mixed liquid flows inside the filling pipe 6 and is finally sprayed out through the liquid outlet cover 15. The use of the liquid outlet cover 15 increases the liquid outlet area of the filling pipe 6, avoiding the mixed liquid sprayed in the filling pipe 6 from being concentrated on the same position of the conical flow guide cover 172, causing deformation and damage of the conical flow guide cover 172. Further, the use of the liquid outlet cover 15 is beneficial to the uniform distribution of the sprayed mixed liquid, so that the mixed liquid flows uniformly on the conical flow guide cover 172. The mixed liquid flows to the edge of the conical flow guide cover 172, is blocked by the flow guide ring 173 to control the flow rate, and then overflows from the flow slot 171 to flow down along the outer wall of the flow guide cylinder 174, and finally falls to the top of the filter component 19. This way, the liquid level on the top of the filter component 19 will not fluctuate too much, which is beneficial to the separation of crude oil and water, and at the same time avoids the great drop of the mixed liquid, which may impact the ultrafiltration membrane and greatly reduce the generation of floating foam, which is beneficial to the separation of oil and water. The temperature sensor 178 is used to detect the temperature of the mixed liquid. When the temperature of the mixed liquid is too low, the heating column 181 is turned on to heat the mixed liquid, avoiding that the low temperature of the mixed liquid makes the crude oil in the mixed liquid more viscous, which is not conducive to the separation of crude oil and water. Further heating can improve the fluidity of the crude oil and also reduce its density, which is helpful for the separation of crude oil and water. It should be noted that the temperature of the mixed liquid is maintained between 50-65℃ to avoid emulsification of the crude oil due to high temperature, which may affect the separation of crude oil and water. Furthermore, the increase of the temperature of the mixed liquid also reduces the possibility of oil sludge adhering to the top of the ultrafiltration membrane. The modified polypropylene melt-blown non-woven fabric 182 is used to make the small oil droplets wet and spread on the surface of the fiber, collide and polymerize into large oil beads (diameter increased by more than 10 times), and the buoyancy is significantly improved, which is beneficial to the separation of crude oil and water. The use of the modified polypropylene melt-blown non-woven fabric 182 and the flow guide component 17 can also limit the shaking of the mixed liquid.

[0038] The mixed liquid realizes oil-water separation on the top of the filter component 19, and the water continues to move downward after passing through the ultrafiltration membrane, and then passes through the top and bottom honeycomb flow guide plates 199 and the water-resistant honeycomb activated carbon and the oleophobic modified nanometer sponge, respectively. The water-resistant honeycomb activated carbon is used to capture light hydrocarbon substances, and the oleophobic modified nanometer sponge adsorbs residual crude oil in the water. Finally, the water is discharged from the drain pipe 12 for subsequent treatment. The use of the two upper and lower honeycomb flow guide plates 199 can divide the water body into small units to flow, thereby suppressing wave resonance and reducing vibration. The rubber shock pad reduces the vibration transmission efficiency between the recovery device and the deck of the offshore oil platform, thereby reducing vibration. When the liquid level sensor detects crude oil, the external liquid pump is turned on to generate suction force at the suction head 111 to suck away the crude oil. When the liquid level sensor detects no crude oil, the external liquid pump is automatically turned off. Further, to reduce the height of the suction head 111 and the liquid level sensor, the electric telescopic rod 113 can be controlled to extend, so that the telescopic tube 116 is stretched and the suction head 111 and the liquid level sensor are lowered. This method is also suitable for use when cleaning the inside of the crude oil recovery device. Finally, the oil on the top of the ultrafiltration membrane is completely sucked away by the suction head 111. When the inside of the treatment tank 3 needs to be cleaned and the components need to be maintained, the remaining water in the inside of the treatment tank 3 and the oil on the top of the ultrafiltration membrane are first sucked away. The filling pipe 6 is separated from the external water filling pipe through the flange, the air extraction pipe 7 is separated from the external waste gas treatment equipment through the flange, the liquid extraction pipe 117 is separated from the external liquid pump through the flange, and the liquid suction pipe 10 is separated from the external demulsifier storage tank through the flange. The bolts on the top of the upper and lower connecting ring plates 4 are removed, the lifting locks are installed in the lifting holes, and the cover 5 and the connected components are lifted away for subsequent cleaning and maintenance.

[0039] In summary, the energy-saving type offshore oil platform crude oil recovery device and its use method solve the problem that the top of the discharge caisson is open, and since the offshore oil platform is used for oil extraction in the sea, it is affected by the sea waves and will sway, which easily causes the liquid in the inside of the discharge caisson to splash out from the top, thereby causing pollution to the offshore oil platform.

Claims

1. An energy-saving crude oil recovery device for offshore oil platforms, comprising a treatment tank (3), characterized in that: The top of the processing tank (3) is provided with a cover (5), the left and right sides of the top of the cover (5) are respectively connected with a gas extraction pipe (7) and a liquid extraction component (11), the rear side of the top of the cover (5) is installed with a metering pump (9), the center of the top of the processing tank (3) is provided with a filling pipe (6), the bottom of the filling pipe (6) penetrates through the cover (5) and is connected with a liquid outlet cover (15), the liquid outlet end of the metering pump (9) is connected with a liquid outlet pipe (8), the side, away from the metering pump (9), of the liquid outlet pipe (8) and the inside of the filling pipe (6) are jointly installed with an agitating component (13), the top of the inner wall of the processing tank (3) is provided with a plurality of positioning grooves (14), the inside of the plurality of positioning grooves (14) is jointly installed with a flow guide component (17), a plurality of hangers (16) are installed on the flow guide component (17), the top of the hanger (16) is connected with the top of the inner wall of the cover (5), the bottom of the liquid extraction component (11) penetrates through the cover (5) and extends to the inside of the flow guide component (17), the inside of the flow guide component (17) is installed with a heating component (18), the bottom of the inner wall of the processing tank (3) is installed with a filtering component (19), and the flow guide component (17) comprises a conical flow guide cover (172) and an outer cylinder (177).

2. The energy-saving crude oil recovery device for offshore oil platforms according to claim 1, characterized in that: The top of the processing tank (3) and the bottom of the cover (5) are fixedly provided with connecting ring plates (4), the upper and lower connecting ring plates (4) are connected through a plurality of bolts, and a plurality of hoisting screw holes are formed in the outer side of the top of the cover (5).

3. The energy-saving crude oil recovery device for offshore oil platforms according to claim 1, characterized in that: The liquid inlet end of the metering pump (9) is connected with a liquid suction pipe (10), one side, away from the metering pump (9), of the liquid suction pipe (10) is connected with an external demulsifier storage tank through a flange plate, the bottom of the processing tank (3) is connected with a drain pipe (12), one side, away from the processing tank (3), of the drain pipe (12) is connected with a water conveying pipeline of a water treatment device through a flange plate, and one side, away from the cover (5), of the gas extraction pipe (7) is connected with an external waste gas treatment device through a flange plate.

4. The energy-saving crude oil recovery device for offshore oil platforms according to claim 1, characterized in that: The front side of the processing tank (3) is embedded with a transparent tempered glass plate (2), the bottom of the processing tank (3) is fixedly provided with a support frame (1), the bottom of the support frame (1) is embedded with a rubber shock isolation pad, and the support frame (1) and the rubber shock isolation pad are connected with an offshore oil platform through a plurality of bolts.

5. The energy-saving crude oil recovery device for offshore oil platforms according to claim 1, characterized in that: The top of the outer cylinder (177) is connected with several positioning blocks (176), the positioning blocks (176) are located in the inside of the positioning groove (14), the bottom of the inner wall of the outer cylinder (177) is connected with several connecting blocks (179), the bottom of the connecting block (179) is inlaid with a temperature sensor (178), the conical flow guiding cover (172) is located directly below the filling pipe (6), the bottom of the conical flow guiding cover (172) is fixedly connected with a flow guiding cylinder (174), the bottom of the outer part of the flow guiding cylinder (174) is provided with several flow windows (175), the outer parts of the flow guiding cylinder (174) and the conical flow guiding cover (172) are collectively sleeved with a flow guiding ring (173), the top of the flow guiding ring (173) is provided with several flow grooves (171), the inner sides of the several connecting blocks (179) are all connected with the flow guiding cylinder (174), and the bottom of the suspender (16) is connected with the conical flow guiding cover (172).

6. The energy-saving crude oil recovery unit for offshore oil platforms according to claim 1, characterized in that: The stirring part (13) comprises a connecting sleeve (138), one side of the liquid outlet pipe (8) away from the metering pump (9) is connected with the connecting sleeve (138), the inner wall of the connecting sleeve (138) is movably connected with an injection pipe (139) through a sealing bearing, the bottom of the injection pipe (139) penetrates into the inside of the filling pipe (6), the outside of the injection pipe (139) is provided with several liquid outlet holes (133), the top and the bottom of the outside of the injection pipe (139) are respectively sleeved with a damping sleeve (137) and a bearing sleeve (136), the outside of the injection pipe (139) and located between the damping sleeve (137) and the bearing sleeve (136) is connected with several fan leaves (132), the top of the fan leaf (132) is provided with an arc surface, the liquid outlet hole (133) is also located between the damping sleeve (137) and the bearing sleeve (136), the bottom of the injection pipe (139) is connected with a stirring rod (134), the bottom of the stirring rod (134) penetrates through the filling pipe (6), the conical flow guiding cover (172), the liquid pumping part (11) and the heating part (18) and is connected with a cleaning plate (135), the inner wall of the bearing sleeve (136) and the outside of the injection pipe (139) are movably connected through a bearing, the outside of the bearing sleeve (136) and the outside of the damping sleeve (137) are both connected with a mounting block (131), one side of the mounting block (131) away from the bearing sleeve (136) and the damping sleeve (137) is connected with the inner wall of the filling pipe (6).

7. The energy-saving crude oil recovery unit for offshore oil platforms according to claim 1, characterized in that: The liquid pumping component (11) comprises a liquid pumping pipe (117) located at the top of the treatment tank (3), which is connected with an external liquid pumping pump through a flange plate away from one side of the treatment tank (3), and the bottom of the liquid pumping pipe (117) penetrates the cover (5) and the conical flow guide cover (172) and is connected with an extension pipe (116), the bottom of the extension pipe (116) is connected with an adsorption ring pipe (112), the bottom of the adsorption ring pipe (112) is connected with a plurality of suction heads (111), the front and rear ends of the inner wall of the adsorption ring pipe (112) are both connected with positioning plates (114), the opposite ends of the two positioning plates (114) are connected with a connecting plate (115), the top of the connecting plate (115) is connected with electric telescopic rods (113) at both ends, and the top of the electric telescopic rods (113) is connected with the top of the inner wall of the conical flow guide cover (172).

8. The energy-saving crude oil recovery unit for offshore oil platforms according to claim 1, characterized in that: The heating component (18) comprises a plurality of heating columns (181), the top of each of the plurality of heating columns (181) is connected with the top of the inner wall of the conical flow guide cover (172), the bottom of the heating column (181) is connected with a connecting disc (183), a plurality of restraint holes (184) are formed in the top of the outer side of the connecting disc (183), a connecting ring is mounted on the inner wall of the restraint hole (184), and a modified polypropylene melt-blown non-woven fiber web (182) is connected between the plurality of connecting rings.

9. The energy-saving crude oil recovery unit for offshore oil platforms according to claim 1, characterized in that: The outer side of the bottom of the inner wall of the treatment tank (3) is provided with a threaded ring groove, the filtering component (19) comprises a threaded ring (1912), the outer part of the threaded ring (1912) is threadedly connected with the inner wall of the threaded ring groove, the top of the threaded ring (1912) is connected with a lower filtering frame (198), the top of the lower filtering frame (198) is connected with a plurality of supporting inclined rods (197), the top of the plurality of supporting inclined rods (197) is commonly connected with an upper filtering frame (1910), the inner walls of the lower filtering frame (198) and the upper filtering frame (1910) are both connected with honeycomb-shaped flow guide plates (199), the inner wall of the top honeycomb-shaped flow guide plate (199) is inlaid with water-resistant honeycomb activated carbon, the inner wall of the bottom honeycomb-shaped flow guide plate (199) is inlaid with oil-repellent modified nano sponge, the top of the upper filtering frame (1910) is connected with a plurality of supporting columns (196), the top of the plurality of supporting columns (196) is commonly connected with a lower mounting ring (195), the top of the lower mounting ring (195) is provided with a lower sealing groove (194), the inner wall of the lower sealing groove (194) is inlaid with a sealing ring (193), the top of the lower mounting ring (195) is provided with a filtering ring (192), the bottom of the filtering ring (192) is provided with an upper sealing groove matched with the sealing ring (193), the inner wall of the filtering ring (192) is connected with a plurality of upper connecting blocks (191), the inner wall of the lower mounting ring (195) is connected with a plurality of lower connecting blocks (1911), the upper connecting blocks (191) and the lower connecting blocks (1911) are connected through bolts, and the inner wall of the filtering ring (192) is mounted with an ultrafiltration membrane.

10. The method of claim 1, wherein the method further comprises: The use method comprises the energy-saving offshore oil platform crude oil recovery device in claims 1-9, and further comprises the following steps: Step one: the suction pipe (7) is connected with the external waste gas treatment equipment through the flange plate, the liquid suction pipe (117) is connected with the external liquid suction pump through the flange plate, the drain pipe (12) is connected with the water conveying pipe of the external water treatment equipment through the flange plate, and the liquid suction pipe (10) is connected with the external demulsifier storage tank through the flange plate. The mixed liquid (hereinafter referred to as mixed liquid) of seawater and crude oil after desalination is injected into the filling pipe (6) through the external water injection pipe. At the same time, the external control cabinet of the crude oil recovery device is used to control the metering pump (9) to be opened, so that the demulsifier is injected into the filling pipe (6), and the temperature sensor (178) and the liquid level sensor are opened at the same time. Step two: the mixed liquid flows in the filling pipe (6) and impacts the arc surface on the fan blade (132), so that the fan blade (132) rotates, the fan blade (132) drives the injection pipe (139) to rotate, so that the demulsifier in the injection pipe (139) is sprayed out through the liquid outlet hole (133), and the demulsifier (132) is uniformly distributed in the mixed liquid. Step three: the mixed liquid in the filling pipe (6) is finally sprayed out through the liquid outlet cover (15), flows to the edge of the conical flow guide cover (172), overflows from the flow slot (171), flows downward along the outer wall of the flow guide cylinder (174), and finally falls on the top of the filter part (19). The temperature sensor (178) is used to detect the temperature of the mixed liquid, and when the temperature of the mixed liquid is too low, the heating column (181) is opened to heat the mixed liquid. Step four: the mixed liquid realizes oil-water separation at the top of the filter part (19), the water continues to move downward after passing through the ultrafiltration membrane, passes through the honeycomb guide plate (199) and the water-resistant honeycomb activated carbon at the top and the honeycomb guide plate (199) and the oleophobic modified nanometer sponge at the bottom in sequence, and finally is discharged from the drain pipe (12) for subsequent treatment.

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