Environment-friendly plug sweeping three-phase separation device for oil field

Abstract

The invention discloses an environment-friendly plug sweeping three-phase separation device for an oil field, and belongs to the technical field of plug sweeping of the oil field, the environment-friendly plug sweeping three-phase separation device comprises a main body mechanism for three-phase separation and plug sweeping of petroleum, and the main body mechanism is provided with an opening mechanism and a slag removal mechanism; by optimizing the design of a main body mechanism and combining the rotatable front pore plate and the rotatable rear pore plate, effective layering and separation of oil, water and gas are achieved, meanwhile, a high-pressure water jet cleaning system is arranged, plug sweeping operation can be automatically conducted after oil and water are emptied, impurity accumulation and blockage are avoided, the separation efficiency is improved, and the manual cleaning frequency is reduced; the screw rod transmission mechanism driven by the motor, the linkage rack rod, the gear set and the sliding baffle are adopted, the baffle is automatically opened in the cleaning process, the angle of the pore plate is adjusted, it is ensured that the cleaning tail end can cover all areas in the main body shell, and the problem of cleaning dead corners caused by a fixed structure of a traditional device is solved.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield plug sweeping, in particular to an environmentally friendly oilfield plug sweeping three-phase separation device. Background Art

[0002] During oilfield production, crude oil often mixes with water, gas, and solid impurities (such as silt and paraffin), forming a complex multiphase mixture. To meet the requirements of crude oil processing, transportation, and storage, the produced crude oil must be separated into three phases: oil, water, and gas, and the solid impurities removed. Traditional three-phase separation devices typically use gravity sedimentation, centrifugation, or filtration. However, these devices suffer from the following technical drawbacks: They are ineffective for crude oil with high viscosity or high impurities, resulting in long settling times and incomplete oil-water separation, resulting in the crude oil still containing a significant amount of water or solid particles. Impurities such as silt and paraffin in the crude oil easily accumulate within the separation device, especially in key areas such as orifice plates and baffles. Over time, this can reduce the flow area or even completely block the device, impacting normal production. The structural design of traditional separation devices is not conducive to internal cleaning, often requiring downtime and manual disassembly for cleaning. This is not only time-consuming and labor-intensive, but can also lead to performance degradation due to incomplete cleaning. Furthermore, some separation devices are prone to oil leakage or substandard exhaust emissions during the deslagging process, which does not meet the environmental protection requirements of modern oilfield production. Existing technologies still suffer from low automation, limited cleaning coverage, and complex damper opening and closing mechanisms, making it difficult to achieve efficient and environmentally friendly integrated scavenging and separation operations. Therefore, a new, environmentally friendly, oilfield scavenging three-phase separation device is urgently needed. This device can efficiently separate oil, water, and gas while also enabling automated cleaning and slag removal, reducing manual intervention and improving operational stability and environmental friendliness. Summary of the Invention

[0003] In response to the above technical problems, the present invention adopts the following technical solutions: an environmentally friendly oilfield three-phase separation device with plug sweeping, comprising a main body mechanism for performing three-phase separation of petroleum and plug sweeping, the main body mechanism comprising a main body shell, and an opening mechanism and a slag removal mechanism provided on the main body mechanism; The opening mechanism comprises two fixed baffles fixedly mounted in the main body shell, and a sliding baffle is slidably mounted on the fixed baffles.

[0004] Furthermore, the main body mechanism includes two upper baffles fixedly installed in the main body shell, two front hole plates and two rear hole plates rotatably installed in the main body shell, multiple holes are provided on the front hole plates and the rear hole plates, a drain outlet is fixedly installed in the main body shell, a slide rail is fixedly installed in the main body shell, an exhaust hole is provided on the main body shell, and an exhaust fan is connected to the outside of the exhaust hole.

[0005] Furthermore, a motor is fixedly mounted on the main body shell, a motor wheel is fixedly mounted on the motor shaft of the motor, a screw is rotatably mounted in the main body shell, a screw wheel is fixedly mounted on the screw, a transmission belt is wrapped around the screw wheel and the motor wheel, a slide is slidably mounted on the slide rail, a cleaning end is fixedly mounted on the slide, a water pipe is fixedly mounted on the cleaning end, the water pipe is slidably mounted on the slide rail, the water pipe is connected to an external cleaning machine, and a threaded transmission is formed between the slide and the screw.

[0006] Furthermore, a rack rod is slidably installed on the main body shell, an internal thread plate is fixedly installed on the rack rod, the internal thread plate and the screw rod form a threaded transmission, two upper gears and a front gear are rotatably installed on the main body shell, a lower gear is fixedly installed below the upper gear, the lower gear is engaged with the front gear, the front gear is fixedly installed with the front hole plate, and an upper transmission belt is wrapped around the front hole plate and the rear hole plate.

[0007] After removing impurities such as sand, the oil enters the main shell, the gas is extracted by the exhaust hole and the exhaust fan, and the liquid enters the space between the front orifice plate and the main shell. Then the liquid passes through the holes of the front orifice plate and the rear orifice plate and enters between the rear orifice plate and the fixed baffle for sedimentation. After the water is agglomerated and deoiled by the renewable filler, it is discharged from the drain port. After sedimentation, the oil passes over the fixed baffle and the sliding baffle and enters between the fixed baffle and the main shell, and is discharged from the oil outlet.

[0008] When it is necessary to clean the blockage, first drain the water and oil in the main body shell, and then the motor drives the motor wheel to rotate, and drives the screw wheel and screw to rotate through the transmission belt, thereby driving the slide to slide along the slide rail, and introduce high-pressure water to the cleaning end through the water pipe, and the cleaning end sprays a high-pressure water jet outward. At the same time, the slide moves with the cleaning end, so that the cleaning end can clean the blockage without dead angles in the main body shell. At the same time, the rotation of the screw drives the internal thread plate and the rack rod to slide along the main body shell, and the rack rod drives the upper gear and the lower gear to rotate, driving the front gear and the front orifice plate to rotate, and drives the rear orifice plate to rotate through the upper transmission belt, so that the front orifice plate and the rear orifice plate will not block the movement of the cleaning end, and at the same time, the surfaces of the front orifice plate and the rear orifice plate are cleaned by the cleaning end. When the internal thread plate moves to the end of the screw rod, the internal thread plate disengages from the screw rod, so that the subsequent internal thread plate no longer moves, and the front orifice plate and the rack rod remain open.

[0009] Furthermore, the opening mechanism includes two wheel frames fixedly installed in the main body shell, an internal threaded wheel is rotatably installed on one wheel frame, and a driven wheel is rotatably installed on the other wheel frame, an opening belt is wrapped around the internal threaded wheel and the driven wheel, an upper connecting frame and a lower connecting frame are fixedly installed on the opening belt, the lower connecting frame and the upper connecting frame are fixedly installed on the two sliding baffles respectively, an advancing screw is fixedly installed on the internal threaded plate, and the advancing screw and the internal threaded wheel form a threaded transmission.

[0010] When the internal thread plate moves, it will drive the forward screw to move at the same time, and the forward screw will drive the internal thread wheel to rotate, which will drive the opening belt to rotate, thereby driving the upper connecting frame and the lower connecting frame to move outward at the same time, thereby driving the two sliding baffles to move outward at the same time, so that the sliding baffles are opened and will not block the movement of the cleaning end.

[0011] Furthermore, the slag removal mechanism includes an oil inlet pipe fixedly mounted on the main body shell, an oil inlet hopper fixedly mounted on the oil inlet pipe, a separation motor fixedly mounted in the oil inlet hopper, and a separation disc fixedly mounted on the motor shaft of the separation motor.

[0012] Furthermore, an output cylinder is fixedly installed on the oil inlet hopper, a slag discharge motor is fixedly installed on the output cylinder, a conveying blade shaft is rotatably installed in the output cylinder, a plurality of holes are provided on the conveying blade shaft, the conveying blade shaft is fixedly installed with the motor shaft of the slag discharge motor, and a slag discharge port is provided on the output cylinder.

[0013] The oil enters from the oil inlet hopper, and the separation motor drives the separation plate to rotate to stir the oil. The sand and gravel in the oil sink to the bottom of the oil inlet hopper. The oil after the sand is removed enters the main shell from the oil inlet pipe. The slag discharge motor drives the conveying blade shaft to rotate, and the conveying blade shaft drives the sand and gravel to rise, and the sand and gravel fall out from the slag discharge port. The holes on the conveying blade shaft prevent the oil from being carried away by the conveying blade shaft.

[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention optimizes the design of the main body structure and combines the rotatable front and rear orifice plates to achieve effective stratification and separation of oil, water and gas. At the same time, it is equipped with a high-pressure water jet cleaning system, which can automatically perform a blockage sweeping operation after draining the oil and water, avoiding impurity accumulation and blockage, improving separation efficiency and reducing the frequency of manual cleaning; (2) The present invention adopts a motor-driven screw transmission mechanism, which links the rack rod, gear set and sliding baffle. During the cleaning process, the baffle is automatically opened and the orifice plate angle is adjusted to ensure that the cleaning end can cover all areas in the main body shell, avoiding the cleaning dead angle problem caused by the fixed structure of the traditional device; (3) The oil inlet hopper provided by the present invention is provided with a rotating separation disc driven by a separation motor to accelerate the sedimentation of sediment and automatically discharge solid impurities through the spiral conveying blade shaft. The hole design on the conveying blade shaft can prevent oil from being carried out, ensuring the continuous and stable slag removal process and reducing the risk of equipment blockage; (4) The present invention adopts an exhaust fan in combination with an exhaust hole to discharge gas, reducing the escape of harmful gases; the drain outlet is provided with a renewable filler to aggregate and remove the oil layer, reducing the oil content in the water, meeting environmental protection requirements. In addition, the overall structure is compact, the transmission mechanism has strong linkage, and the operation is stable and reliable, making it suitable for long-term use under harsh working conditions in oil fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the present invention (first perspective).

[0016] Figure 2 Schematic diagram of the main structure of the present invention Figure 1 .

[0017] Figure 3 The main structure of the present invention is shown in FIG. Figure 2 .

[0018] Figure 4 Schematic diagram of the main structure of the present invention Figure 3 .

[0019] Figure 5 Schematic diagram of the main structure of the present invention Figure 4 .

[0020] Figure 6 Schematic diagram of the opening mechanism structure of the present invention Figure 1 .

[0021] Figure 7 Schematic diagram of the opening mechanism structure of the present invention Figure 2 .

[0022] Figure 8 It is a structural schematic diagram of the slag removal mechanism of the present invention.

[0023] Reference numerals: 101 - main body shell; 102 - motor; 103 - motor wheel; 104 - transmission belt; 105 - screw wheel; 106 - screw; 107 - drain outlet; 108 - slide; 109 - slide rail; 110 - water pipe; 111 - cleaning end; 112 - upper baffle; 113 - internal thread plate; 114 - front hole plate; 115 - rear hole plate; 116 - rack rod; 117 - upper gear; 118 - lower gear; 119 - front gear; 120 - upper transmission Belt; 121-exhaust hole; 122-oil outlet; 201-wheel frame; 202-forward screw rod; 203-fixed baffle; 204-sliding baffle; 205-upper connecting frame; 206-lower connecting frame; 207-inner thread wheel; 208-driven wheel; 209-opening belt; 301-oil inlet hopper; 302-oil inlet pipe; 303-separation motor; 304-separation disc; 305-conveying blade shaft; 306-output cylinder; 307-slag outlet; 308-slag discharge motor. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0025] Example: Reference Figures 1-8 An environmentally friendly oilfield three-phase separation device includes a main body for performing three-phase separation and scavenging of oil, the main body including a main body shell 101, and an opening mechanism and a slag removal mechanism are provided on the main body; The opening mechanism includes two fixed baffles 203 fixedly mounted in the main body shell 101 , and a sliding baffle 204 is slidably mounted on the fixed baffles 203 .

[0026] like Figure 2-Figure 5 As shown, the main body mechanism includes two upper baffles 112 fixedly installed in the main body shell 101, two front hole plates 114 and two rear hole plates 115 are rotatably installed in the main body shell 101, and multiple holes are provided on the front hole plates 114 and the rear hole plates 115. A drain outlet 107 is fixedly installed in the main body shell 101, a slide rail 109 is fixedly installed in the main body shell 101, an exhaust hole 121 is provided on the main body shell 101, and an exhaust fan is connected to the outside of the exhaust hole 121.

[0027] like Figure 2-Figure 5 As shown, a motor 102 is fixedly mounted on the main body shell 101, a motor wheel 103 is fixedly mounted on the motor shaft of the motor 102, a screw rod 106 is rotatably mounted in the main body shell 101, a screw wheel 105 is fixedly mounted on the screw rod 106, a transmission belt 104 is wrapped around the screw wheel 105 and the motor wheel 103, a slide 108 is slidably mounted on the slide rail 109, a cleaning end 111 is fixedly mounted on the slide 108, a water pipe 110 is fixedly mounted on the cleaning end 111, the water pipe 110 is slidably mounted on the slide rail 109, the water pipe 110 is connected to an external cleaning machine, and the slide 108 and the screw rod 106 form a threaded transmission.

[0028] like Figure 2-Figure 5 As shown, a rack rod 116 is slidably installed on the main body shell 101, and an internal thread plate 113 is fixedly installed on the rack rod 116. The internal thread plate 113 and the screw rod 106 form a threaded transmission. Two upper gears 117 and a front gear 119 are rotatably installed on the main body shell 101. A lower gear 118 is fixedly installed below the upper gear 117. The lower gear 118 is engaged with the front gear 119. The front gear 119 is fixedly installed on the front hole plate 114. The upper transmission belt 120 is wrapped around the front hole plate 114 and the rear hole plate 115.

[0029] After the sand and other impurities are removed, the oil enters the main shell 101, the gas is sucked away by the exhaust hole 121 and the exhaust fan, and the liquid enters the space between the front orifice plate 114 and the main shell 101. Then the liquid passes through the holes of the front orifice plate 114 and the rear orifice plate 115 and enters between the rear orifice plate 115 and the fixed baffle 203 for sedimentation. After the water is agglomerated and oil-removed by the renewable filler, it is discharged from the drain port 107. After sedimentation, the oil passes over the fixed baffle 203 and the sliding baffle 204 and enters between the fixed baffle 203 and the main shell 101, and is discharged from the oil outlet 122.

[0030] When it is necessary to clean the blockage, first drain the water and oil in the main body shell 101, then the motor 102 drives the motor wheel 103 to rotate, and drives the screw wheel 105 and the screw rod 106 to rotate through the transmission belt 104, thereby driving the slide 108 to slide along the slide rail 109, and high-pressure water is introduced into the cleaning end 111 through the water pipe 110. The cleaning end 111 sprays a high-pressure water jet outward, and the slide 108 moves together with the cleaning end 111, so that the cleaning end 111 can clean the blockage without dead angles in the main body shell 101. At the same time, the screw rod 106 rotates to drive the internal threaded plate 113 and the rack rod 116 to slide along the main body shell 101, and the rack rod 1 16 drives the upper gear 117 to rotate, and the upper gear 117 drives the front gear 119 to rotate through the coaxial lower gear 118, driving the front gear 119 and the front orifice plate 114 to rotate, and driving the rear orifice plate 115 to rotate through the upper transmission belt 120, so that the front orifice plate 114 and the rear orifice plate 115 will not block the movement of the cleaning end 111, and at the same time, the surfaces of the front orifice plate 114 and the rear orifice plate 115 are cleaned by the cleaning end 111. When the internal thread plate 113 moves to the end of the screw rod 106, the internal thread plate 113 disengages from the screw rod 106, so that the subsequent internal thread plate 113 no longer moves, and the front orifice plate 114 and the rack rod 116 remain open.

[0031] like Figure 6 、 Figure 7 As shown, the opening mechanism includes two wheel frames 201 fixedly mounted in the main body shell 101, an internal threaded wheel 207 is rotatably mounted on one wheel frame 201, and a driven wheel 208 is rotatably mounted on the other wheel frame 201, an opening belt 209 is wrapped around the internal threaded wheel 207 and the driven wheel 208, an upper connecting frame 205 and a lower connecting frame 206 are fixedly mounted on the opening belt 209, the lower connecting frame 206 and the upper connecting frame 205 are respectively fixedly mounted on the two sliding baffles 204, a forward screw rod 202 is fixedly mounted on the internal threaded plate 113, and the forward screw rod 202 and the internal threaded wheel 207 form a threaded transmission.

[0032] When the internal thread plate 113 moves, it will also drive the forward screw 202 to move, and the forward screw 202 will drive the internal thread wheel 207 to rotate, and drive the opening belt 209 to rotate, thereby driving the upper connecting frame 205 and the lower connecting frame 206 to move outward at the same time, thereby driving the two sliding baffles 204 to move outward at the same time, so that the sliding baffles 204 are opened and will not block the movement of the cleaning end 111.

[0033] like Figure 8 As shown, the slag removal mechanism includes an oil inlet pipe 302 fixedly mounted on the main body shell 101, an oil inlet bucket 301 fixedly mounted on the oil inlet pipe 302, a separation motor 303 fixedly mounted in the oil inlet bucket 301, and a separation disc 304 fixedly mounted on the motor shaft of the separation motor 303.

[0034] like Figure 8As shown, an output tube 306 is fixedly installed on the oil inlet hopper 301, a slag discharge motor 308 is fixedly installed on the output tube 306, a conveying blade shaft 305 is rotatably installed in the output tube 306, a plurality of holes are provided on the conveying blade shaft 305, the conveying blade shaft 305 is fixedly installed with the motor shaft of the slag discharge motor 308, and a slag discharge port 307 is provided on the output tube 306.

[0035] The oil enters from the oil inlet hopper 301, and the separation motor 303 drives the separation plate 304 to rotate to stir the oil. The sand and gravel and other impurities in the oil sink to the bottom of the oil inlet hopper 301. The oil after the sand is removed enters the main shell 101 from the oil inlet pipe 302. The slag discharge motor 308 drives the conveying blade shaft 305 to rotate, and the conveying blade shaft 305 drives the sand and gravel to rise.

[0036] The working principle of the environmentally friendly three-phase separation device for oil fields disclosed in the present invention is as follows: oil enters from the oil inlet hopper 301, the separation motor 303 drives the separation plate 304 to rotate to stir the oil, and impurities such as sand and gravel in the oil sink to the bottom of the oil inlet hopper 301. The oil after the sediment is removed enters the main shell 101 from the oil inlet pipe 302, and the slag discharge motor 308 drives the conveying blade shaft 305 to rotate, and the conveying blade shaft 305 drives the sand and gravel to rise, and the sand and gravel fall out from the slag discharge port 307. After the sand and other impurities are removed, the oil enters the main shell 101, the gas is sucked away by the exhaust hole 121 and the exhaust fan, and the liquid enters the space between the front orifice plate 114 and the main shell 101. Then the liquid passes through the holes of the front orifice plate 114 and the rear orifice plate 115 and enters between the rear orifice plate 115 and the fixed baffle 203 for sedimentation. After the water is agglomerated and oil-removed by the renewable filler, it is discharged from the drain port 107. After sedimentation, the oil passes over the fixed baffle 203 and the sliding baffle 204 and enters between the fixed baffle 203 and the main shell 101, and is discharged from the oil outlet 122. When the internal thread plate 113 moves, it will also drive the forward screw 202 to move, and the forward screw 202 will drive the internal thread wheel 207 to rotate, and drive the opening belt 209 to rotate, thereby driving the upper connecting frame 205 and the lower connecting frame 206 to move outward at the same time, thereby driving the two sliding baffles 204 to move outward at the same time, so that the sliding baffles 204 are opened and will not block the movement of the cleaning end 111.

[0037] When it is necessary to clean the blockage, first drain the water and oil in the main body shell 101, then the motor 102 drives the motor wheel 103 to rotate, and drives the screw wheel 105 and the screw rod 106 to rotate through the transmission belt 104, thereby driving the slide 108 to slide along the slide rail 109, and high-pressure water is introduced into the cleaning end 111 through the water pipe 110. The cleaning end 111 sprays a high-pressure water jet outward, and at the same time, the slide 108 moves together with the cleaning end 111, so that the cleaning end 111 can clean the blockage without dead angles in the main body shell 101. At the same time, the screw rod 106 rotates to drive the internal thread plate 113 and the rack rod 116 along the main body shell. 101 slides, and the rack rod 116 drives the upper gear 117 and the lower gear 118 to rotate, and drives the front gear 119 and the front orifice plate 114 to rotate, and drives the rear orifice plate 115 to rotate through the upper transmission belt 120, so that the front orifice plate 114 and the rear orifice plate 115 will not block the movement of the cleaning end 111. At the same time, the surfaces of the front orifice plate 114 and the rear orifice plate 115 are cleaned by the cleaning end 111. When the internal thread plate 113 moves to the end of the screw rod 106, the internal thread plate 113 disengages from the screw rod 106, so that the subsequent internal thread plate 113 no longer moves, and the front orifice plate 114 and the rack rod 116 remain open.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An environmentally friendly oilfield three-phase separation device with plug sweeping, comprising a main body for performing three-phase separation of oil and plug sweeping, characterized in that: The main body mechanism comprises a main body shell (101), and an opening mechanism and a slag removal mechanism are provided on the main body mechanism; The opening mechanism comprises two fixed baffles (203) fixedly mounted in the main body shell (101), and a sliding baffle (204) is slidably mounted on the fixed baffles (203).

2. The environmentally friendly oilfield three-phase separation device according to claim 1, characterized in that: The main body mechanism comprises two upper baffles (112) fixedly mounted in the main body shell (101), two front hole plates (114) and two rear hole plates (115) rotatably mounted in the main body shell (101), a plurality of holes being provided on the front hole plates (114) and the rear hole plates (115), a drain port (107) being fixedly mounted in the main body shell (101), a slide rail (109) being fixedly mounted in the main body shell (101), an exhaust hole (121) being provided on the main body shell (101), and an exhaust fan being externally connected to the exhaust hole (121).

3. The environmentally friendly oilfield three-phase separation device according to claim 2, characterized in that: A motor (102) is fixedly mounted on the main body shell (101), a motor wheel (103) is fixedly mounted on the motor shaft of the motor (102), a screw rod (106) is rotatably mounted in the main body shell (101), a screw wheel (105) is fixedly mounted on the screw rod (106), a transmission belt (104) is wound around the screw wheel (105) and the motor wheel (103), a slide (108) is slidably mounted on the slide rail (109), a cleaning terminal (111) is fixedly mounted on the slide rail (108), a water pipe (110) is fixedly mounted on the cleaning terminal (111), the water pipe (110) is slidably mounted on the slide rail (109), the water pipe (110) is connected to an external cleaning machine, and the slide rail (108) and the screw rod (106) form a threaded transmission.

4. The environmentally friendly oilfield three-phase separation device according to claim 3, characterized in that: A rack rod (116) is slidably mounted on the main body shell (101), an internal thread plate (113) is fixedly mounted on the rack rod (116), and the internal thread plate (113) and the screw rod (106) form a threaded transmission. Two upper gears (117) and a front gear (119) are rotatably mounted on the main body shell (101), a lower gear (118) is fixedly mounted below the upper gear (117), the lower gear (118) is meshed with the front gear (119), the front gear (119) is fixedly mounted on the front hole plate (114), and an upper transmission belt (120) is wound around the front hole plate (114) and the rear hole plate (115).

5. The environmentally friendly oilfield three-phase separation device according to claim 4, characterized in that: The opening mechanism comprises two wheel frames (201) fixedly mounted in the main body shell (101), an internally threaded wheel (207) being rotatably mounted on one wheel frame (201), a driven wheel (208) being rotatably mounted on the other wheel frame (201), an opening belt (209) being wound around the internally threaded wheel (207) and the driven wheel (208), an upper connecting frame (205) and a lower connecting frame (206) being fixedly mounted on the opening belt (209), the lower connecting frame (206) and the upper connecting frame (205) being fixedly mounted on two sliding baffles (204), respectively, an advancing screw rod (202) being fixedly mounted on the internally threaded plate (113), and the advancing screw rod (202) and the internally threaded wheel (207) forming a threaded transmission.

6. The environmentally friendly oilfield three-phase separation device according to claim 1, characterized in that: The slag removal mechanism comprises an oil inlet pipe (302) fixedly mounted on the main body shell (101), an oil inlet hopper (301) fixedly mounted on the oil inlet pipe (302), a separation motor (303) fixedly mounted in the oil inlet hopper (301), and a separation disc (304) fixedly mounted on the motor shaft of the separation motor (303).

7. The environmentally friendly oilfield three-phase separation device according to claim 6, characterized in that: An output tube (306) is fixedly mounted on the oil inlet hopper (301), a slag discharge motor (308) is fixedly mounted on the output tube (306), a conveying blade shaft (305) is rotatably mounted in the output tube (306), a plurality of holes are provided on the conveying blade shaft (305), the conveying blade shaft (305) is fixedly mounted to the motor shaft of the slag discharge motor (308), and a slag discharge port (307) is provided on the output tube (306).

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