Gas-liquid separator for oil field

Abstract

The invention belongs to the technical field of oil field equipment, and particularly relates to an oil field gas-liquid separator which comprises a support, a collecting hopper is fixed to the support, a guide shell is arranged above the collecting hopper, and a filter hopper is fixed between the collecting hopper and the guide shell. And a reciprocating knocking mechanism for assisting filtered impurities in the filter hopper to fall is arranged in the guide shell. Through cooperation of the separation cylinder and the spiral separation blade, primary separation operation can be carried out on a gas-liquid mixture, secondary separation operation can be carried out on the gas-liquid mixture through the arranged waterproof breathable film, and therefore the situation that the gas-liquid mixture is not thoroughly separated can be avoided under the action of double separation; and when gas-liquid separation is carried out on the waterproof gas-permeable membrane, the transmission mechanism can be used for driving the waterproof gas-permeable membrane to rotate, so that the waterproof gas-permeable membrane can be in more uniform contact with a gas-liquid mixture subjected to primary treatment, gas can penetrate through the membrane more smoothly, and the gas-liquid separation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oilfield equipment, and particularly to a gas-liquid separator for oilfields. Background Art

[0002] An oilfield is the sum of oil and gas reservoirs under the control of a single geological structure (or formation) factor within the same oil and gas production area. An oilfield mainly composed of oil reservoirs within the same area is called an oilfield, which can be divided into structural oil and gas fields, where the oil and gas production area is controlled by a single structural factor such as folds and faults; stratigraphic oil and gas fields, where the oil-bearing area is controlled by factors such as unconformity, pinch-out, and lithological changes of the formation on the background of a regional anticline or monocline structure; and composite oil and gas fields, where the oil and gas production area is controlled by multiple geological factors.

[0003] During the oilfield exploitation process, gas-liquid separators need to be installed at positions such as near the wellhead and along the natural gas transmission pipeline to separate the produced substances into gas and liquid. When the gas-liquid separator separates the produced substances into gas and liquid, the separation operation is often a one-time operation, and the separation ends when one separation process is completed, resulting in incomplete separation of the gas-liquid mixture. Therefore, we propose a gas-liquid separator for oilfields to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a gas-liquid separator for oilfields, which solves the problems raised in the above background art.

[0005] The present invention specifically adopts the following technical solutions to achieve the above objectives: A gas-liquid separator for oilfields includes a support, on which a collecting hopper is fixed. Above the collecting hopper, a guiding shell is provided. A filtering hopper is fixed between the collecting hopper and the guiding shell. Inside the guiding shell, a reciprocating knocking mechanism is provided for assisting the impurities inside the filtering hopper to fall. The top of the guiding shell is rotatably connected to a rotating shaft through a bearing. On the surface of the rotating shaft, four jet plates are fixed through mounting blocks. Inside four blind holes opened at the top of the rotating shaft, flow guiding pipes are respectively fixed. The bottom ends of the flow guiding pipes are respectively connected and fixed to the corresponding jet plates. On the surface of the filtering hopper, a separation cylinder is fixed. Inside the separation cylinder, spiral separation blades are fixed. Two air guiding pipes are fixed on the filtering hopper, and one ends of the air guiding pipes respectively penetrate through the separation cylinder and extend to its outside. Inside the collecting hopper, a frame is provided, and two arc-shaped waterproof and breathable membranes are fixed on the frame. On the top of the guiding shell, a transmission mechanism is provided for driving the two waterproof and breathable membranes to rotate. Below the collecting hopper, a liquid guiding ring is provided. The outer wall of the liquid guiding ring is connected and fixed with a liquid flow pipe. The top of the liquid guiding ring is connected and fixed with two first drainage pipes and two second drainage pipes. The top ends of the first drainage pipes are respectively connected and fixed to the collecting hopper. The top ends of the second drainage pipes are respectively connected and fixed to the bottom of the separation cylinder.

[0006] Further, it further includes an air extraction cylinder fixed on the bracket. A spiral air extraction blade fixed on the surface of the rotating shaft is arranged inside the air extraction cylinder. Exhaust pipes are fixedly connected and communicated at four exhaust holes opened on the surface of the collection hopper. The bottom ends of the exhaust pipes are fixedly connected and communicated with the top of the air extraction cylinder. A gas flow pipe is fixedly connected and communicated with the outer wall of the air extraction cylinder.

[0007] Further, a spiral sealing strip adapted to its shape is fixed on the surface of the spiral air extraction blade, and the spiral sealing strip is closely attached to the inner wall of the air extraction cylinder.

[0008] Further, the transmission mechanism includes a rotating ring that is hermetically and limit-rotated between the collection hopper and the guide shell. The rotating ring is fixedly connected with the frame. Four transmission plates are fixed on the surface of the rotating ring, and a toothed ring is fixed between the four transmission plates. Two transmission shafts one are rotatably connected to the top of the guide shell through bearings. Driven gears one are fixed on the surfaces of the two transmission shafts one. A driving gear one fixed on the surface of the rotating shaft is arranged between the two driven gears one. Both of the two driven gears one are meshed and connected with the toothed ring and the driving gear one.

[0009] Further, the reciprocating knocking mechanism includes a support seat fixed inside the guide shell. Four transmission shafts two are rotatably connected to the top of the support seat through bearings. Driven gears two are fixed on the surfaces of the four transmission shafts two. A driving gear two fixed on the surface of the rotating shaft is arranged between the four driven gears two. The driven gears two are all meshed and connected with the driving gear two. Four positioning blocks are fixed on the top of the support seat. T-shaped reciprocating rods are slidably arranged inside through grooves opened on the side walls of the positioning blocks. One ends of the T-shaped reciprocating rods are respectively movably connected to the tops of the corresponding driven gears two through T-shaped positioning shafts.

[0010] Further, a protective shell is fixed on the outer wall of the collection hopper. An upper conduction part is fixed inside a through hole opened on the top of the protective shell. A lower conduction part is hermetically and rotatably connected to the bottom of the upper conduction part. The top ends of the diversion pipes are fixedly connected and communicated with the lower conduction part. A connecting pipe is fixedly connected and communicated with the top of the upper conduction part. A flange is fixed at the top end of the connecting pipe.

[0011] Further, a waste discharge pipe is fixedly connected and communicated with the bottom end of the filter hopper, and a sealing cover plate is connected to the other end of the waste discharge pipe through threads.

[0012] Further, an annular rail adapted to the frame is fixed inside the collection hopper.

[0013] Compared with the prior art, the present invention provides an oilfield gas-liquid separator, which has the following beneficial effects: In the present invention, through the cooperation of the separation cylinder and the spiral separation blades, a primary separation operation can be performed on the gas-liquid mixture, and by using the provided waterproof and breathable membrane, a secondary separation operation can be carried out on the gas-liquid mixture. Therefore, under the action of double separation, the situation of incomplete separation of the gas-liquid mixture can be avoided. Moreover, when the waterproof and breathable membrane performs gas-liquid separation, the provided transmission mechanism can drive it to rotate, so that the waterproof and breathable membrane can contact the gas-liquid mixture after primary treatment more evenly, facilitating the gas to penetrate the membrane more smoothly, thereby improving the gas-liquid separation effect. Secondly, at the exhaust pipe, the separated gas is discharged through the exhaust cylinder, which can accelerate the discharge efficiency of the gas after gas-liquid separation.

[0014] In the present invention, by arranging a filter hopper inside the collection hopper, the gas-liquid mixture will be filtered through the filter hopper before spraying, preventing impurities from affecting the waterproof and breathable membrane and ensuring the breathability of the waterproof and breathable membrane. During the gas-liquid separation process, the filter hopper can be cleaned in real time through the reciprocating knocking mechanism to avoid the blockage of the filter hopper mesh holes from affecting its filtering effect, and the vibration generated by the reciprocating knocking mechanism can also act on the waterproof and breathable membrane, further making it easier for the gas to pass through the waterproof and breathable membrane. Brief Description of the Drawings

[0015] Figure 1 Schematic diagram of the overall structure of the present invention from the first perspective; Figure 2 Schematic diagram of the overall structure of the present invention from the second perspective; Figure 3 Cross-sectional view of the overall structure of the present invention; Figure 4 Cross-sectional view of the collection hopper structure of the present invention; Figure 5 Schematic diagram of the spray plate structure of the present invention; Figure 6 Schematic diagram of the frame structure of the present invention; Figure 7 Schematic diagram of the reciprocating knocking mechanism structure of the present invention.

[0016] In the figure: 1, support; 2, collection hopper; 3, filter hopper; 4, guide housing; 5, rotating shaft; 6, jet plate; 7, diversion pipe; 8, separation cylinder; 9, spiral separation blade; 10, air guide pipe; 11, frame; 12, transmission mechanism; 1201, rotating ring; 1202, transmission plate; 1203, toothed ring; 1204, first transmission shaft; 1205, first driven gear; 1206, first driving gear; 13, liquid diversion ring; 14, first drain pipe; 15, second drain pipe; 16, reciprocating knocking mechanism; 1601, support seat; 1602, second transmission shaft; 1603, second driven gear; 1604, second driving gear; 1605, positioning block; 1606, T-shaped reciprocating rod; 17, waterproof and breathable membrane; 18, air extraction cylinder; 19, spiral air extraction blade; 20, exhaust pipe; 21, spiral sealing strip; 22, protective housing; 23, upper conduction part; 24, lower conduction part; 25, connecting pipe; 26, flange; 27, impurity discharge pipe; 28, sealing cover plate; 29, annular track. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0018] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, an embodiment of the present invention proposes a gas-liquid separator for oil fields, including a bracket 1, a collecting bucket 2 is fixed on the bracket 1, a guide shell 4 is arranged above the collecting bucket 2, a filter bucket 3 is fixed between the collecting bucket 2 and the guide shell 4, and a discharge pipe 27 is connected and fixed to the bottom end of the filter bucket 3, and a sealing cover plate 28 is connected to the other end of the discharge pipe 27 through a thread. The cooperation of the discharge pipe 27 and the sealing cover plate 28 can collect impurities filtered by the filter bucket 3, so as to facilitate the subsequent discharge of impurities, and a clearance hole adapted to the rotating shaft 5 is opened on the discharge pipe 27, so that the rotating shaft 5 will not be interfered when rotating, and a sealing member is arranged at the through hole of the discharge pipe 27 to avoid leakage at the joint of the two. The guide shell 4 is arranged inside There is a reciprocating knocking mechanism 16 for assisting the impurities filtered inside the filter bucket 3 to fall. The top of the guide shell 4 is rotatably connected to the rotating shaft 5 through a bearing. Four jet plates 6 are fixed to the surface of the rotating shaft 5 through a mounting block. The four blind holes opened on the top of the rotating shaft 5 are fixed with guide pipes 7. The bottom ends of the guide pipes 7 are respectively connected and fixed with the corresponding jet plates 6. A separation cylinder 8 is fixed on the surface of the filter bucket 3. Spiral separation blades 9 are fixed inside the separation cylinder 8. Two air guide pipes 10 are fixed on the filter bucket 3. One end of the air guide pipes 10 passes through the separation cylinder 8 and extends to the outside. A frame 11 is provided inside the collecting bucket 2. A ring rail 29 adapted to the frame 11 is fixed inside the collecting bucket 2, which can play an auxiliary supporting role for the bottom of the frame 11 so that In order to make it more stable during rotation, two arc-shaped waterproof and breathable membranes 17 are fixed on the frame 11, and a transmission mechanism 12 for driving the two waterproof and breathable membranes 17 to rotate is arranged on the top of the guide shell 4. A liquid guide ring 13 is arranged below the collecting bucket 2, and the outer wall of the liquid guide ring 13 is connected and fixed with a liquid flow pipe, and the top of the liquid guide ring 13 is connected and fixed with two drainage pipes 14 and two drainage pipes 2 15, and the top of the drainage pipe 14 is connected and fixed with the collecting bucket 2, and the top of the drainage pipe 2 15 is connected and fixed with the bottom of the separation cylinder 8. In the process of using this gas-liquid separator for oil fields, the pipeline of the gas-liquid mixture pumping equipment can be connected and fixed with the guide pipe 7, and the gas-liquid mixture will enter the inner of the spray plate 6 through the guide pipe 7 respectively. The starting motor drives the rotating shaft 5 to rotate, which will drive the jet plate 6 and the guide pipe 7 to rotate. Since the bottom of the jet plate 6 is equidistantly provided with jet holes, the gas-liquid mixture can be circulated and sprayed out at this time. Since a filter bucket 3 is arranged below the jet plate 6, the gas-liquid mixture sprayed out by the jet plate 6 will first be sprayed on the filter bucket 3, and the impurities in the gas-liquid mixture can be filtered through the filter bucket 3. Then, when the gas-liquid mixture continues to flow, it will enter the interior of the separation cylinder 8. Under the action of the spiral separation blades 9, the gas-liquid mixture will flow downward in a spiral shape inside the separation cylinder 8. At this time, the liquid will flow down to the interior of the liquid guide ring 13 through the two drainage pipes 15, and the gas will enter the cavity between the frame 11 and the separation cylinder 8 through the two air guide pipes 10.Thus, the primary separation operation of the gas-liquid mixture can be completed. The gas after the primary separation will pass through the waterproof and breathable membrane 17. Since the waterproof and breathable membrane 17 has the effect of blocking liquid penetration and allowing gas to flow freely, when the gas-liquid mixture after the primary treatment passes through the waterproof and breathable membrane 17, the waterproof and breathable membrane 17 can block the liquid. At this time, the secondary gas-liquid separation operation of the gas-liquid mixture can be completed. The liquid filtered by the waterproof and breathable membrane 17 will enter the interior of the liquid guide ring 13 through the first drainage pipe 14. Finally, by opening the valve of the liquid flow pipe on the liquid guide ring 13, the separated liquid can be discharged, and the separated gas will be discharged through the exhaust holes opened on the collection hopper 2. Therefore, the incomplete separation of the gas-liquid mixture in oilfield gas production can be avoided. And when the rotating shaft 5 rotates, it can drive the frame 11 to rotate through the transmission mechanism 12, and then drive the two waterproof and breathable membranes 17 to rotate. Therefore, the waterproof and breathable membranes 17 can contact the gas-liquid mixture after the primary treatment more evenly, so that the gas can pass through the waterproof and breathable membranes 17 more smoothly, improving the gas-liquid separation effect. When the reciprocating knocking mechanism 16 operates, it can knock the filtering hopper 3 in real time, so as to quickly drop the impurities filtered on its surface, avoiding the situation that the filtering effect is affected after the impurities block its mesh holes. And when the reciprocating knocking mechanism 16 knocks the filtering hopper 3 reciprocally, the vibration generated will also act on the waterproof and breathable membrane 17, further making it easier for the gas to pass through the waterproof and breathable membrane 17.,

[0019] As Figure 1 , Figure 2 and Figure 3 shown, in some embodiments, it further includes an air extraction cylinder 18 fixed on the bracket 1. Inside the air extraction cylinder 18, there is a spiral air extraction blade 19 fixed on the surface of the rotating shaft 5. A spiral sealing strip 21 matching its shape is fixed on the surface of the spiral air extraction blade 19. The spiral sealing strip 21 is in close fit with the inner wall of the air extraction cylinder 18. The set spiral sealing strip 21 can enhance the tightness of the fit between the spiral air extraction blade 19 and the inner wall of the air extraction cylinder 18, avoiding air leakage when the spiral air extraction blade 19 rotates for air extraction. Four exhaust holes are opened on the surface of the collection hopper 2, and exhaust pipes 20 are connected and fixed to each of them. The bottom ends of the exhaust pipes 20 are connected and fixed to the top of the air extraction cylinder 18. A gas flow pipe is connected and fixed to the outer wall of the air extraction cylinder 18. During use, when the rotating shaft 5 rotates, it will drive the spiral air extraction blade 19 to rotate. When the spiral air extraction blade 19 rotates, it can continuously exhaust the air inside the air extraction cylinder 18. Since one end of each of the four exhaust pipes 20 is connected and fixed to the exhaust hole of the collection hopper 2, when the spiral air extraction blade 19 rotates, the exhaust efficiency of the gas after gas-liquid separation inside the collection hopper 2 can be increased, and by opening the valve of the gas flow pipe on the air extraction cylinder 18, the gas can be continuously discharged.

[0020] As Figure 3 andFigure 4 As shown, in some embodiments, the transmission mechanism 12 includes a rotating ring 1201 that is hermetically limited and rotates between the collection hopper 2 and the guide housing 4. The rotating ring 1201 is fixedly connected to the frame 11. Four transmission plates 1202 are fixed on the surface of the rotating ring 1201. A toothed ring 1203 is fixed between the four transmission plates 1202. Two first transmission shafts 1204 are rotatably connected to the top of the guide housing 4 through bearings. Driven gears 1205 are fixed on the surfaces of the first transmission shafts 1204. A first driving gear 1206 fixed on the surface of the rotating shaft 5 is arranged between the two driven gears 1205. Both of the two driven gears 1205 are meshed with the toothed ring 1203 and the first driving gear 1206. When in use, when the rotating shaft 5 rotates, it will drive the first driving gear 1206 to rotate. Since the driven gears 1205 fixed on the first transmission shafts 1204 are both meshed with the first driving gear 1206, when the first driving gear 1206 rotates, it will drive the driven gears 1205 on both sides to rotate. Also, since both of the two driven gears 1205 are rotated with the toothed ring 1203, when the first driving gear 1206 rotates, it can drive the toothed ring 1203 to rotate. And the toothed ring 1203 is fixed between the four transmission plates 1202. Therefore, when the rotating shaft 5 rotates, it can drive the rotating ring 1201 to rotate through the four transmission plates 1202. After the rotating ring 1201 rotates, it can drive the frame 11 to rotate. Through the cooperation of the toothed ring 1203, the driven gears 1205 and the first driving gear 1206, when the rotating shaft 5 rotates, it can drive the rotating ring 1201 to rotate at the same time. Therefore, there is no need to use other additional driving devices, and through the cooperation of the three, the rotation speed of the rotating ring 1201 can be reduced. Furthermore, the rotation speed of driving the frame 11 to rotate can be reduced, avoiding the relatively fast rotation speed of the waterproof and breathable membrane 17.

[0021] As Figure 3 and Figure 7As shown, in some embodiments, the reciprocating knocking mechanism 16 includes a support seat 1601 fixed inside the guide housing 4. Four second drive shafts 1602 are rotatably connected to the top of the support seat 1601 through bearings. Driven gears two 1603 are fixed on the surfaces of the second drive shafts 1602. A driving gear two 1604 fixed on the surface of the rotating shaft 5 is arranged among the four driven gears two 1603. The driven gears two 1603 are all meshed and connected with the driving gear two 1604. Four positioning blocks 1605 are fixed on the top of the support seat 1601. T-shaped reciprocating rods 1606 are slidably arranged inside through grooves opened on the side walls of the positioning blocks 1605. One ends of the T-shaped reciprocating rods 1606 are respectively movably connected to the tops of the corresponding driven gears two 1603 through T-shaped positioning shafts. When in use, when the rotating shaft 5 rotates, it will drive the driving gear two 1604 fixed on its surface to rotate. After the driving gear two 1604 rotates, it will drive the four driven gears two 1603 to rotate simultaneously. Since one ends of the four T-shaped reciprocating rods 1606 are respectively movably connected to the tops of the corresponding driven gears two 1603 through T-shaped positioning shafts, and the positioning blocks 1605 can limit the moving directions of the T-shaped reciprocating rods 1606. At this time, when the driven gears two 1603 rotate, they will drive the T-shaped reciprocating rods 1606 to reciprocate. Finally, after the T-shaped reciprocating rods 1606 move back and forth, the filter hopper 3 can be knocked, and at this time, the impurities filtered inside the filter hopper 3 can be shaken off to the lower part thereof, so as to facilitate subsequent processing. And with the cooperation of the driving gear two 1604 and the four driven gears two 1603, when the rotating shaft 5 rotates, the reciprocating knocking mechanism 16 can be driven to operate, so there is no need to use other driving devices additionally.

[0022] As Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, a protective housing 22 is fixed on the outer wall of the collection hopper 2. An upper conduction member 23 is fixed inside a through hole opened at the top of the protective housing 22. A lower conduction member 24 is rotatably and sealingly connected to the bottom of the upper conduction member 23. The tops of the diversion pipes 7 are all fixedly communicated with the lower conduction member 24. A connecting pipe 25 is fixedly communicated with the top of the upper conduction member 23. A flange 26 is fixed at the top of the connecting pipe 25. When in use, the connecting pipe 25 can be fixedly communicated with the pipeline of the gas-liquid mixture pumping device. At this time, with the cooperation of the upper conduction member 23 and the lower conduction member 24, the gas-liquid mixture entering the connecting pipe 25 can be diverted into the four diversion pipes 7. Therefore, when the four diversion pipes 7 rotate following the rotating shaft 5, they will not be interfered, and at the same time, the normal transportation work of the gas-liquid mixture can be ensured. In addition, the upper conduction member 23 is supported by the protective housing 22, and after the protective housing 22 is installed, it can also protect the transmission mechanism 12 at the top of the guide housing 4.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oilfield gas-liquid separator, comprising a bracket (1), characterized in that: A collecting hopper (2) is fixed on the bracket (1). A guiding shell (4) is arranged above the collecting hopper (2). A filtering hopper (3) is fixed between the collecting hopper (2) and the guiding shell (4). A reciprocating knocking mechanism (16) for assisting the impurities filtered inside the filtering hopper (3) to fall is arranged inside the guiding shell (4). The top of the guiding shell (4) is rotatably connected with a rotating shaft (5) through a bearing. Four jet plates (6) are fixed on the surface of the rotating shaft (5) through mounting blocks. Flow guide pipes (7) are fixed inside four blind holes opened at the top of the rotating shaft (5). The bottom ends of the flow guide pipes (7) are respectively and fixedly communicated with the corresponding jet plates (6). A separation cylinder (8) is fixed on the surface of the filtering hopper (3). Spiral separation blades (9) are fixed inside the separation cylinder (8). Two air guide pipes (10) are fixed on the filtering hopper (3). One ends of the air guide pipes (10) penetrate through the separation cylinder (8) and extend to the outside thereof. A frame (11) is arranged inside the collecting hopper (2). Two arc-shaped waterproof and breathable membranes (17) are fixed on the frame (11). A transmission mechanism (12) for driving the two waterproof and breathable membranes (17) to rotate is arranged at the top of the guiding shell (4). A liquid guiding ring (13) is arranged below the collecting hopper (2). A liquid flow pipe is fixedly communicated with the outer wall of the liquid guiding ring (13). Two first drainage pipes (14) and two second drainage pipes (15) are fixedly communicated with the top of the liquid guiding ring (13). The top ends of the first drainage pipes (14) are respectively and fixedly communicated with the collecting hopper (2). The top ends of the second drainage pipes (15) are respectively and fixedly communicated with the bottom of the separation cylinder (8).

2. The gas-liquid separator for oil fields according to claim 1, characterized in that: It further includes an air extraction cylinder (18) fixed on the bracket (1). A spiral air extraction blade (19) fixed on the surface of the rotating shaft (5) is arranged inside the air extraction cylinder (18). Exhaust pipes (20) are fixedly communicated at four exhaust holes opened on the surface of the collecting hopper (2). The bottom ends of the exhaust pipes (20) are respectively and fixedly communicated with the top of the air extraction cylinder (18). A gas flow pipe is fixedly communicated with the outer wall of the air extraction cylinder (18).

3. The gas-liquid separator for oil fields according to claim 2, characterized in that: A spiral sealing strip (21) matching the shape of the spiral air extraction blade (19) is fixed on the surface of the spiral air extraction blade (19). The spiral sealing strip (21) is in close fit with the inner wall of the air extraction cylinder (18).

4. The gas-liquid separator for oil fields according to claim 1, characterized in that: The transmission mechanism (12) includes a rotating ring (1201) that is hermetically limited and rotates between the collecting hopper (2) and the guiding housing (4). The rotating ring (1201) is fixedly connected to the frame (11). Four transmission plates (1202) are fixed on the surface of the rotating ring (1201). A toothed ring (1203) is fixed between the four transmission plates (1202). Two first transmission shafts (1204) are rotatably connected to the top of the guiding housing (4) through bearings. Driven gears one (1205) are fixed on the surfaces of the first transmission shafts (1204). A driving gear one (1206) fixed on the surface of the rotating shaft (5) is arranged between the two driven gears one (1205). Both of the two driven gears one (1205) are meshed with the toothed ring (1203) and the driving gear one (1206).

5. The gas-liquid separator for oil fields according to claim 1, characterized in that: The reciprocating knocking mechanism (16) includes a support seat (1601) fixed inside the guiding housing (4). Four second transmission shafts (1602) are rotatably connected to the top of the support seat (1601) through bearings. Driven gears two (1603) are fixed on the surfaces of the second transmission shafts (1602). A driving gear two (1604) fixed on the surface of the rotating shaft (5) is arranged between the four driven gears two (1603). The driven gears two (1603) are all meshed with the driving gear two (1604). Four positioning blocks (1605) are fixed on the top of the support seat (1601). T-shaped reciprocating rods (1606) are slidably arranged inside the through grooves opened on the side walls of the positioning blocks (1605). One ends of the T-shaped reciprocating rods (1606) are respectively movably connected to the tops of the corresponding driven gears two (1603) through T-shaped positioning shafts.

6. The gas-liquid separator for oil fields according to claim 1, wherein: A protective housing (22) is fixed on the outer wall of the collecting hopper (2). An upper conduction member (23) is fixed inside the through hole opened on the top of the protective housing (22). A lower conduction member (24) is hermetically rotatably connected to the bottom of the upper conduction member (23). The tops of the diversion pipes (7) are fixedly communicated with the lower conduction member (24). A connecting pipe (25) is fixedly communicated with the top of the upper conduction member (23). A flange (26) is fixed at the top of the connecting pipe (25).

7. The gas-liquid separator for oil fields according to claim 1, characterized in that: A waste discharging pipe (27) is fixedly communicated with the bottom end of the filtering hopper (3). The other end of the waste discharging pipe (27) is threadedly connected with a sealing cover plate (28).

8. The gas-liquid separator for oil fields according to claim 1, wherein: An annular rail (29) adapted to the frame (11) is fixed inside the collecting hopper (2).

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