Petrochemical product oil-gas separator

Abstract

The invention belongs to the technical field of petroleum processing, and discloses a petrochemical product oil-gas separator which comprises a bottom shell, a separating mechanism is arranged at the bottom of an inner cavity of the bottom shell, a cooling shell is fixedly installed at the top end of the bottom shell and inclines rightwards, and a cooling opening fixedly sleeves the middle of the left side of the cooling shell. The cold opening is fixedly connected with the input end of external cooling equipment, the hot opening is fixedly formed in the middle of the right side of the cooling shell, the cold opening is fixedly connected with the output end of the external cooling equipment, and multiple sets of condensation pipes are symmetrically arranged on the front side and the rear side of the middle of the cooling shell. A plurality of groups of pistons alternately move up and down along the condensation pipe, so that filtered gas continuously flows out of the device through the first communicating device and the second communicating device, oil attached to an inner cavity of the condensation pipe is treated in time, and the problem that organic oil attached with heat insulation is attached to the inner cavity of the condensation pipe is solved. The cooling efficiency of the volatile oil gas by the subsequent condensation pipe is reduced, and the purity of the separated gas is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum processing, and in particular relates to an oil-gas separator for petrochemical products. Background Art

[0002] The oil-gas separator is a device that separates the crude oil and associated natural gas produced by the oil well. The oil-gas separator is placed between the submersible centrifugal pump and the protector to separate the free gas from the well fluid. The liquid is sent to the submersible centrifugal pump, and the gas is released into the annular space between the tubing and the casing.

[0003] Existing oil and gas separation usually uses the difference in density between oil and air for separation. During separation, the oil and gas are introduced into a container with an outlet designed at the bottom and top of the container. When the oil and gas enter the container, the gas floats to the upper part of the container and the liquid is located at the lower part of the container, thereby performing separation. However, in actual operation, some of the gas will dissolve into the oil, and the gas dissolved into the oil cannot be actively precipitated and separated from the oil body, resulting in low purity of the oil and gas after actual separation. In addition, during the oil and gas separation process, some of the oil will be vaporized and mixed with the gas. Therefore, a condensing device is required to condense and liquefy the vaporized oil. The liquefaction of oil is different from that of ordinary liquid. Oil itself is an organic liquid with a heat-insulating effect. The liquefied oil adheres to the inner curved surface of the condenser, causing the heat conduction effect of the condenser to deteriorate, resulting in a decrease in the subsequent cooling effect. Therefore, a new oil and gas separator is needed to improve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide an oil-gas separator for petrochemical products to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil-gas separator for petrochemical products, comprising a bottom shell, a separation mechanism is provided at the bottom of the inner cavity of the bottom shell, a cooling shell is fixedly installed on the top of the bottom shell, a cold port is fixedly sleeved in the middle of the left side of the cooling shell, and the cold port is fixedly connected to the input end of an external cooling device, a hot port is fixedly installed in the middle of the right side of the cooling shell, and the hot port is fixedly connected to the output end of the external cooling device, a plurality of groups of condensing pipes are symmetrically provided on the front and rear sides of the middle of the cooling shell, a piston is slidably sleeved in the middle of the condensing pipe, a push rod is fixedly installed in the middle of the upper surface of the piston, and a plurality of the push rods on the same side of the left and right sides are provided. A connecting plate is fixedly installed on the top of the cooling shell, a plurality of first couplers are fixedly installed on the upper surface of the cooling shell at equal intervals from left to right, a plurality of first connecting holes are equidistantly opened on the bottom surface of the first coupler, a first middle hole is opened on the front side of the first coupler, a second coupler is fixedly installed on the front end of the plurality of first couplers, a second connecting hole is opened on the right side of the second coupler, a plurality of first middle holes are equidistantly opened on the rear side of the second coupler, the left side of the second connecting hole is fixedly connected to the output end of the external exhaust device, a second driving member is fixedly installed on the upper part of the left side of the bottom shell, and a driving mechanism is provided between the output end of the second driving member and the cooling shell.

[0006] Preferably, the separation mechanism includes an oil delivery port, which is fixedly sleeved on the upper part of the left side of the bottom shell, a swivel seat is fixedly sleeved on the bottom of the inner cavity of the bottom shell, a turntable is slidably sleeved on the upper surface of the swivel seat, a plurality of centrifugal blades are fixedly installed at equidistant intervals on the upper surface of the turntable, a top ring is fixedly installed on the top of the plurality of centrifugal blades, an output port is slidably sleeved on the middle part of the swivel seat, the output port is fixedly sleeved on the turntable, a passive gear sleeve is fixedly sleeved on the bottom of the outer curved surface of the output port, a first driving member is fixedly installed on the bottom surface of the swivel seat, a driving gear is fixedly installed on the output end of the first driving member, and the driving gear and the passive gear sleeve are meshed with each other.

[0007] Preferably, the driving mechanism includes a crankshaft, the left end of the crankshaft is connected to the output end of the second driving member, the two ends of the crankshaft are slidably connected to the bottom shell, the middle parts of the multiple cranks of the crankshaft are movably sleeved with a crank rod, the sides of the multiple crank rods away from the crankshaft are movably sleeved with cranks, the ends of the multiple cranks away from the crankshaft are fixedly installed with square plugs, and the middle part of the lower surface of the cooling shell is equidistantly fixed with multiple hydraulic shells, the square plugs are slidably sleeved with the inner side surface of the hydraulic shell, the upper part of the hydraulic shell is fixedly sleeved with a hydraulic sleeve, the hydraulic sleeve is fixedly sleeved with the cooling shell, the inner curved surface of the hydraulic sleeve is slidably sleeved with a hydraulic rod, and the top end of the hydraulic rod is fixedly connected to the adjacent connecting plate.

[0008] Preferably, the cooling shell is made of heat-insulating material, the cooling shell is tilted to the right, and the contact surfaces of the condenser and the piston are both smooth surfaces.

[0009] Preferably, the bottom edge of the first connecting hole coincides with the edge of the top of the adjacent piston, and the rear edge of the first center hole coincides with the front edge of the adjacent first connecting hole.

[0010] Preferably, the rotating seat and the rotating disk are made of wear-resistant materials, and the contact surfaces between the rotating seat and the rotating disk are rough surfaces.

[0011] Preferably, the area of ​​the upper surface of the inner cavity of the hydraulic housing is larger than the area formed by the diameter of the inner cavity of the hydraulic rod.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention sets a separation mechanism so that the oil-gas mixture that continuously flows into the inner cavity of the bottom shell rotates in a vortex state along the inner cavity of the bottom shell, and as the volume and weight of the oil-gas mixture that flows into the inner cavity of the bottom shell increase, the bottom diameter of the vortex formed by the oil-gas mixture is smaller than the top diameter, so that the oil-gas mixture that flows into the inner cavity of the bottom shell from the oil delivery port rotates centrifugally from the upper part of the inner cavity of the bottom shell to the lower part of the inner cavity of the bottom shell in sequence, providing sufficient centrifugal time for each portion of the oil-gas mixture, so that the gas dissolved in the oil-gas mixture is precipitated from the oil, and at the same time, the heat generated by the friction between the turntable and the turntable slightly heats the oil-gas mixture above the turntable in the inner cavity of the bottom shell, thereby improving the precipitation efficiency of the gas in the oil-gas mixture, thereby realizing continuous removal of the dissolved gas in the oil-gas mixture and improving the purity of the separated oil.

[0013] 2. The present invention cools the condenser located in the inner cavity of the cooling shell by means of a coolant, so that the volatilized oil and gas flowing into the inner cavity of the condenser contact and condense with the low-temperature inner curved surface of the condenser and adhere to the inner curved surface of the condenser. At this time, the second driving member is started, and the second driving member drives the driving mechanism to operate, so that the pistons of the inner cavities of the multiple groups of condenser tubes from left to right move up and down alternately, so that the gas in the inner cavity of the bottom shell moves through the piston to the condenser tube in the middle of the push rod for condensation treatment, and then flows out of the device through the first coupler and the second coupler, and the downwardly moving piston pushes the condensed oil on the inner curved surface of the condenser tube that is slidably sleeved with it to drip downward into the inner cavity of the bottom shell, thereby realizing that the multiple groups of pistons move up and down alternately along the condenser tube, so that the filtered gas continues to flow out of the device through the first coupler and the second coupler, and the oil adhered to the inner cavity of the condenser tube is processed in time, thereby overcoming the problem that the organic oil with heat insulation property adheres to the inner cavity of the condenser tube, resulting in the subsequent condenser tube cooling efficiency of the volatilized oil and gas is reduced, resulting in the purity of the separated gas being reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 It is a schematic diagram of the separation mechanism structure of the present invention; Figure 3 This is a schematic diagram of the cooling shell structure of the present invention; Figure 4 This is a schematic diagram of the condenser structure of the present invention; Figure 5 It is a schematic diagram of the driving mechanism structure of the present invention.

[0015] In the figure: 1. bottom shell; 2. separation mechanism; 201. oil delivery port; 202. swivel seat; 203. turntable; 204. centrifugal blade; 205. top ring; 206. output port; 207. passive gear sleeve; 208. first driving member; 209. driving gear; 3. cooling shell; 301. cold port; 302. hot port; 4. condenser; 5. piston; 6. push rod; 7. connecting plate; 8. first connector; 9. second connector; 10. second driving member; 11. driving mechanism; 1101. crankshaft; 1102. crank rod; 1103. crank; 1104. square plug; 1105. hydraulic shell; 1106. hydraulic sleeve; 1107. hydraulic rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figures 1 to 5As shown, an embodiment of the present invention provides an oil-gas separator for petrochemical products, including a bottom shell 1, a separation mechanism 2 is provided at the bottom of the inner cavity of the bottom shell 1, a cooling shell 3 is fixedly installed on the top of the bottom shell 1, the cooling shell 3 is made of heat-insulating material, and the cooling shell 3 is made of high-carbon steel, so as to reduce the heat absorbed by the cooling liquid in the inner cavity of the cooling shell 3 through the cooling shell 3 in the air, thereby improving the utilization efficiency of the cooling liquid, and the cooling shell 3 is tilted to the right, so that the condensing tube 4 fixedly sleeved with the cooling shell 3 is tilted to the right, so that the upward flowing oil and gas are efficiently in contact with the inner curved surface of the condensing tube 4, thereby improving the condensation efficiency and effect of the oil and gas on the inner curved surface of the condensing tube 4, and the left side of the cooling shell 3 is provided. A cold port 301 is fixedly sleeved in the middle of the side, and the cold port 301 is fixedly connected to the input end of the external cooling device. A hot port 302 is fixedly installed in the middle of the right side of the cooling shell 3, and the hot port 302 is fixedly connected to the output end of the external cooling device. A plurality of groups of condensing tubes 4 are symmetrically arranged on the front and rear sides of the middle of the cooling shell 3. A piston 5 is slidably sleeved in the middle of the condensing tube 4. The contact surfaces of the condensing tube 4 and the piston 5 are both smooth surfaces, thereby improving the air tightness between the condensing tube 4 and the piston 5 to avoid oil and gas leakage. At the same time, when the piston 5 slides downward along the inner curved surface of the condensing tube 4, the oil attached to the inner curved surface of the condensing tube 4 located in the inner cavity of the cooling shell 3 is completely removed. Grease is used to prevent the heat-insulating grease from causing the subsequent cooling effect of the inner curved surface of the condenser 4 to deteriorate. A push rod 6 is fixedly installed in the middle of the upper surface of the piston 5, and a connecting plate 7 is fixedly installed on the top of multiple push rods 6 on the same side. Multiple first connectors 8 are fixedly installed on the upper surface of the cooling shell 3 from left to right in sequence. Multiple first connecting holes are equidistantly opened on the bottom surface of the first connector 8, and a first middle hole is opened on the front side of the first connector 8. The bottom edge of the first connecting hole coincides with the edge of the top of the adjacent piston 5. By setting the first connecting hole and the first middle hole, the first connector 8 connects multiple condensers 4 and pistons 5 connected thereto together, reducing gas outlet , which is convenient for subsequent gas recovery, a second coupler 9 is fixedly installed at the front end of the plurality of first couplers 8, a second connecting hole is opened on the right side of the second coupler 9, and a plurality of first middle holes are opened equidistantly on the rear side of the second coupler 9, and the edge of the rear side of the first middle hole coincides with the front edge of the adjacent first connecting hole, so that the second coupler 9 connects the plurality of first couplers 8 together, which is convenient for subsequent unified gas recovery and processing, the left side of the second connecting hole is fixedly connected to the output end of the external exhaust device, a second driving member 10 is fixedly installed on the upper part of the left side of the bottom shell 1, and a driving mechanism 11 is provided between the output end of the second driving member 10 and the cooling shell 3.

[0018] like Figure 1 and Figure 2As shown, the separation mechanism 2 includes an oil delivery port 201, which is fixedly sleeved on the upper part of the left side of the bottom shell 1, and a rotating seat 202 is fixedly sleeved on the bottom of the inner cavity of the bottom shell 1, and a rotating disk 203 is slidably sleeved on the upper surface of the rotating seat 202. The rotating seat 202 and the rotating disk 203 are made of wear-resistant materials, and the rotating seat 202 and the rotating disk 203 are made of high-carbon steel. The contact surface between the rotating seat 202 and the rotating disk 203 is a rough surface, so as to increase the heat generated by the friction between the rotating disk 203 and the rotating seat 202 when the rotating disk 203 rotates, so as to slightly heat the oil-gas mixture above the rotating disk 203 in the inner cavity of the bottom shell 1, thereby improving the gas precipitation efficiency in the oil-gas mixture, and a plurality of centrifugal blades are fixedly installed on the upper surface of the rotating disk 203 at equal intervals. Blade 204, a top ring 205 is fixedly installed on the top of multiple centrifugal blades 204. By setting the top ring 205, the problem that the top of the oil-gas mixture continues to move downward when the centrifugal blade 204 centrifuges the oil-gas mixture in the inner cavity of the bottom shell 1, is overcome, and the oil-gas mixture is prevented from splashing in the inner cavity of the bottom shell 1, and the controllability of the shape is reduced. The middle part of the rotating seat 202 is slidably sleeved with an output port 206, the output port 206 is fixedly sleeved with the rotating disk 203, and the bottom of the outer curved surface of the output port 206 is fixedly sleeved with a passive gear sleeve 207. The bottom surface of the rotating seat 202 is fixedly installed with a first driving member 208, and the output end of the first driving member 208 is fixedly installed with a driving gear 209, and the driving gear 209 and the passive gear sleeve 207 are meshed with each other.

[0019] like Figure 1 , Figure 2 and Figure 5 As shown, the driving mechanism 11 includes a crankshaft 1101, the left end of the crankshaft 1101 is connected to the output end of the second driving member 10, the two ends of the crankshaft 1101 are slidably connected to the bottom shell 1, the middle parts of the multiple cranks of the crankshaft 1101 are movably sleeved with a crank rod 1102, the sides of the multiple crank rods 1102 away from the crankshaft 1101 are movably sleeved with a crank 1103, the ends of the multiple cranks 1103 away from the crankshaft 1101 are fixedly installed with a square plug 1104, the middle part of the lower surface of the cooling shell 3 is equidistantly fixed with a plurality of hydraulic shells 1105, the square plugs 1104 are slidably sleeved with the inner side of the hydraulic shell 1105, and the upper part of the hydraulic shell 1105 is fixedly sleeved with The area of ​​the upper surface of the inner cavity of the hydraulic sleeve 1106 and the hydraulic shell 1105 is larger than the area formed by the inner cavity diameter of the hydraulic rod 1107, so that when the square plug 1104 moves upward slightly, the hydraulic fluid in the inner cavity of the hydraulic shell 1105 flows into the inner cavity of the hydraulic sleeve 1106, pushing the hydraulic rod 1107 to move upward significantly, thereby indirectly increasing the effective length of the condenser 4, improving the cooling efficiency of the condenser 4, while reducing the rotation diameter of the crankshaft 1101 and reducing the size of the device. The hydraulic sleeve 1106 is fixedly sleeved with the cooling shell 3, and the inner curved surface of the hydraulic sleeve 1106 is slidably sleeved with the hydraulic rod 1107, and the top of the hydraulic rod 1107 is fixedly connected to the adjacent connecting plate 7.

[0020] Working principle: When the present invention is used, the first driving member 208 is first started, the output end of the first driving member 208 drives the driving gear 209 to rotate, the driving gear 209 drives the passive gear sleeve 207 to rotate, the passive gear sleeve 207 drives the output port 206 to rotate, the output port 206 drives the rotating disk 203 fixedly connected thereto to rotate, the rotating disk 203 drives the centrifugal blades 204 to rotate, the centrifugal blades 204 drive the top ring 205 to rotate, and then the oil-gas mixture is introduced from the oil delivery port 201 into the inner cavity of the bottom shell 1. At this time, the rotating centrifugal blades 204 cause the oil-gas mixture flowing into the inner cavity of the bottom shell 1 to rotate along the inner cavity of the bottom shell 1 in a vortex state, and as the oil-gas mixture flows into the bottom shell 1 Due to the increase in volume and weight of the oil-gas mixture in the inner cavity, the bottom diameter of the vortex formed by the oil-gas mixture is smaller than the top diameter, so that the oil-gas mixture flowing into the inner cavity of the bottom shell 1 from the oil delivery port 201 rotates and centrifuges from the upper part of the inner cavity of the bottom shell 1 to the lower part of the inner cavity of the bottom shell 1 in sequence, providing sufficient centrifugal time for each portion of the oil-gas mixture, so that the gas dissolved in the oil-gas mixture is precipitated from the oil. At this time, the centrifuged gas flows out of the device from the inner cavity of the output port 206 along the upper surface of the turntable 203, and flows upward under the influence of air density to contact the inner curved surface of the condenser 4, thereby realizing the continuous removal of the dissolved gas in the oil-gas mixture and improving the purity of the oil; In addition, when the present invention is used, the coolant flows into the inner cavity of the cooling shell 3 through the cold port 301 and flows out of the inner cavity of the cooling shell 3 through the hot port 302. The coolant cools the condenser tube 4 in the inner cavity of the cooling shell 3, so that the volatilized oil gas flowing into the inner cavity of the condenser tube 4 contacts with the inner curved surface of the low-temperature condenser tube 4 and condenses, and adheres to the inner curved surface of the condenser tube 4. At this time, the second driving member 10 is started, and the output shaft of the second driving member 10 drives the multiple crankshafts 1101 to rotate, and the multiple crankshafts 1101 drive the multiple crank rods 1102 connected with the movable sleeve to move up and down alternately, and the multiple crank rods 1102 drive the multiple crank rods 1102 connected with the movable sleeve to move up and down alternately. The multiple cranks 1103 of the plurality of cranks 1103 move up and down alternately, and the multiple cranks 1103 drive the multiple square plugs 1104 that are movably sleeved therewith to move up and down alternately. The multiple square plugs 1104 push the hydraulic fluid in the inner cavity of the hydraulic shell 1105 that is slidably sleeved therewith to flow into the inner cavity of the hydraulic sleeve 1106. At this time, due to the different moving distances of the square plugs 1104 in the inner cavity of the hydraulic shell 1105, the volumes of hydraulic fluid that flows into the inner cavity of the hydraulic sleeve 1106 that is fixedly sleeved therewith are different, thereby causing the hydraulic fluid in the inner cavity of the multiple hydraulic sleeves 1106 to push the hydraulic rod 1107 that is slidably sleeved therewith to move upward. The moving distances are different, so that the multiple hydraulic rods 1107 drive the multiple connecting plates 7 fixed thereto to move up and down alternately, the multiple connecting plates 7 drive the multiple hydraulic rods 1107 fixed thereto to move up and down alternately, the multiple hydraulic rods 1107 drive the multiple push rods 6 fixed thereto to move up and down alternately, and the multiple push rods 6 drive the pistons 5 fixed thereto to slide up and down along the inner curved surface of the condenser 4, thereby realizing that the multiple groups of pistons 5 in the inner cavities of the condenser 4 from left to right move up and down alternately, so that the gas in the inner cavity of the bottom shell 1 moves to the condenser 4 in the middle of the push rod 6 through the piston 5 for processing. The first coupler 8 and the second coupler 9 flow out of the device, and the downwardly moving piston 5 pushes the condensed oil on the inner curved surface of the condenser 4 slidably sleeved therewith to drip downward into the inner cavity of the bottom shell 1, thereby achieving the alternate up and down movement of multiple groups of pistons 5 along the condenser 4, so that the filtered gas continues to flow out of the device through the first coupler 8 and the second coupler 9, while the oil attached to the inner curved surface of the condenser 4 is processed in time, thereby overcoming the problem that the organic oil with heat insulation properties adheres to the inner curved surface of the condenser 4, resulting in a decrease in the cooling efficiency of the subsequent condenser 4 for the volatilized oil and gas, resulting in a decrease in the purity of the separated gas.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petrochemical product oil-gas separator, comprising a bottom shell (1), characterized in that: A separation mechanism (2) is provided at the bottom of the inner cavity of the bottom shell (1), a cooling shell (3) is fixedly installed at the top of the bottom shell (1), a cold port (301) is fixedly sleeved in the middle of the left side of the cooling shell (3), and the cold port (301) is fixedly connected to the input end of an external cooling device, a hot port (302) is fixedly installed in the middle of the right side of the cooling shell (3), and the hot port (302) is fixedly connected to the output end of the external cooling device, a plurality of groups of condensing tubes (4) are symmetrically provided on the front and rear sides of the middle of the cooling shell (3), a piston (5) is slidably sleeved in the middle of the condensing tube (4), a push rod (6) is fixedly installed in the middle of the upper surface of the piston (5), and a connecting plate (7) is fixedly installed on the tops of the plurality of push rods (6) on the same left and right sides. A plurality of first couplers (8) are fixedly mounted on the upper surface of the cooling shell (3) at equal intervals from left to right, a plurality of first connecting holes are opened at equal intervals on the bottom surface of the first coupler (8), a first middle hole is opened on the front side of the first coupler (8), a second coupler (9) is fixedly mounted on the front end of the plurality of first couplers (8), a second connecting hole is opened on the right side surface of the second coupler (9), a plurality of first middle holes are opened at equal intervals on the rear side surface of the second coupler (9), the left side of the second connecting hole is fixedly connected to the output end of the external exhaust device, a second driving member (10) is fixedly mounted on the upper part of the left side surface of the bottom shell (1), and a driving mechanism (11) is provided between the output end of the second driving member (10) and the cooling shell (3).

2. The oil-gas separator for petrochemical products according to claim 1, characterized in that: The separation mechanism (2) comprises an oil delivery port (201), the oil delivery port (201) being fixedly sleeved on the upper part of the left side of the bottom shell (1), a rotating seat (202) being fixedly sleeved on the bottom of the inner cavity of the bottom shell (1), a rotating disk (203) being slidably sleeved on the upper surface of the rotating seat (202), a plurality of centrifugal blades (204) being fixedly mounted at equal intervals on the upper surface of the rotating disk (203), a top ring (205) being fixedly mounted on the top ends of the plurality of centrifugal blades (204), and the rotating disk (203) being fixedly mounted on the upper surface of the rotating disk (203). An output port (206) is slidably sleeved in the middle of the seat (202), the output port (206) is fixedly sleeved with the rotating disk (203), a passive gear sleeve (207) is fixedly sleeved at the bottom of the outer curved surface of the output port (206), a first driving member (208) is fixedly mounted on the bottom surface of the rotating seat (202), a driving gear (209) is fixedly mounted on the output end of the first driving member (208), and the driving gear (209) and the passive gear sleeve (207) are meshed with each other.

3. The oil-gas separator for petrochemical products according to claim 1, characterized in that: The driving mechanism (11) comprises a crankshaft (1101), the left end of the crankshaft (1101) being connected to the output end of the second driving member (10), the two ends of the crankshaft (1101) being slidably connected to the bottom shell (1), the middle parts of the plurality of cranks of the crankshaft (1101) being movably sleeved with a crank rod (1102), the sides of the plurality of crank rods (1102) being away from the crankshaft (1101) being movably sleeved with a crank (1103), and the ends of the plurality of cranks (1103) being away from the crankshaft (1101) being fixedly mounted with A square plug (1104) is provided, wherein a plurality of hydraulic shells (1105) are fixedly installed at equal intervals in the middle of the lower surface of the cooling shell (3), wherein the square plug (1104) is slidably sleeved with the inner side surface of the hydraulic shell (1105), wherein the upper part of the hydraulic shell (1105) is fixedly sleeved with a hydraulic sleeve (1106), wherein the hydraulic sleeve (1106) is fixedly sleeved with the cooling shell (3), wherein the inner curved surface of the hydraulic sleeve (1106) is slidably sleeved with a hydraulic rod (1107), and the top end of the hydraulic rod (1107) is fixedly connected to the adjacent connecting plate (7).

4. The oil-gas separator for petrochemical products according to claim 1, characterized in that: The cooling shell (3) is made of a heat-insulating material, the cooling shell (3) is tilted to the right, and the contact surfaces of the condenser tube (4) and the piston (5) are both smooth surfaces.

5. The oil-gas separator for petrochemical products according to claim 1, characterized in that: The bottom edge of the first connecting hole coincides with the edge of the top end of the adjacent piston (5), and the rear edge of the first middle hole coincides with the front edge of the adjacent first connecting hole.

6. The oil-gas separator for petrochemical products according to claim 2, characterized in that: The rotating seat (202) and the rotating disk (203) are made of wear-resistant material, and the contact surfaces between the rotating seat (202) and the rotating disk (203) are rough surfaces.

7. The oil-gas separator for petrochemical products according to claim 3, characterized in that: The area of ​​the upper surface of the inner cavity of the hydraulic housing (1105) is larger than the area formed by the diameter of the inner cavity of the hydraulic rod (1107).

Images