A gas-liquid separation tank

Abstract

The present application relates to gasoline vapor separation equipment technical field, specifically disclose a kind of gas-liquid separation tank, including tank body, the air inlet structure of being located at one side of tank body and the air outlet structure of being located at the other side of tank body, condensing structure for condensing water vapor to form water droplet is further provided in tank body, tank bottom is equipped with liquid outlet, air outlet structure includes air outlet main pipe, condensing structure includes condensing table, conical hole and a plurality of mixed gas outlet, condensing table is equipped with refrigeration structure, air outlet main pipe is located below conical hole Section is curved and is communicated with leakage structure in bottom, solve the traditional gas-liquid separator, when applied in the moisture separation of air containing gasoline, it is easy to be electrified by internal power device due to action, cause fire explosion, there is the problem of security risk.

Description

A gas-liquid separator Technical Field

[0001] This application relates to the technical field of gasoline vapor separation equipment, and specifically discloses a gas-liquid separator. Background Technology

[0002] Gasoline is one of the most consumed light petroleum products and an important fuel for engines. It is produced through the fractionation of crude oil and the cracking of heavy distillates. Gasoline possesses properties of volatility, anti-knock properties, stability, safety, and corrosiveness.

[0003] Gasoline vapors are emitted during gasoline production, storage, transportation, and refueling at gas stations. Failure to recover and purify these vapors not only causes environmental pollution but also represents a significant waste of resources. Specifically, a dedicated vapor recovery system is installed for the gasoline bottling process at oil depots to recover the gasoline vapors emitted during this process.

[0004] Existing technologies for gasoline vapor recovery include activated carbon adsorption, absorption, membrane separation, and condensation. For oil vapor recovery systems in oil depots using the absorption method, the typical process flow is as follows: Under slight positive pressure, the gasoline vapor from the tanker truck enters the absorption tower through the external pipeline from the sealed outlet. In the packing layer of the absorption tower, it comes into counter-current contact with a specialized absorbent sprayed from the top. The absorbent selectively absorbs hydrocarbons from the gasoline vapor, separating hydrocarbons from air. Gases not absorbed by the absorbent are discharged through a flame arrester. The absorbent then enters a vacuum desorption tank under pressure differential, where the absorbed gasoline vapor is desorbed under vacuum conditions, and the absorbent is regenerated. The desorbed gasoline vapor is then transported by a vacuum unit to a reabsorption tower, where it is fully absorbed by the finished oil and then transported to the finished oil storage tank, thus achieving gasoline vapor recovery.

[0005] The absorbent sprayed in the spray tower does not contain water, but it will absorb moisture from the air. Therefore, before air containing gasoline vapor is introduced into the absorption tower, the moisture in the air needs to be removed to reduce the impact of moisture in the air on the efficiency of the absorbent.

[0006] Typically, existing technologies use gas-liquid separators to separate water vapor carried in the air, thus drying the air. However, traditional gas-liquid separators employ centrifugal separation and wire mesh filtration to remove liquid. They usually contain a power unit that drives the separation process. But when such devices are used with air containing gasoline, the operation of the power unit can easily generate static electricity through friction, posing a safety hazard.

[0007] Therefore, the inventors have provided a gas-liquid separator to solve the above-mentioned problems. Summary of the Invention

[0008] The purpose of this invention is to solve the safety hazard of traditional gas-liquid separators, which are prone to ignition and explosion due to the internal power unit being electrified when used to separate moisture from air containing gasoline.

[0009] To achieve the above objectives, the basic solution of the present invention provides a gas-liquid separator, including a tank body, an air inlet structure disposed on one side of the tank body and an air outlet structure disposed on the other side of the tank body, and a condensation structure for condensing and precipitating water vapor to form water droplets is also provided inside the tank body, and a liquid outlet is provided at the bottom of the tank body.

[0010] The venting structure includes a venting main pipe, one end of which is located inside the tank and extends into a section near the top surface of the tank. The tank has an venting port for the other end of the venting main pipe to extend out.

[0011] The condensing structure includes a condensing platform fixed to the tank body and sealing the port of the main gas outlet located inside the tank body, several conical holes circumferentially opened on the bottom surface of the condensing platform, and several mixed gas outlets circumferentially opened on the top surface of the condensing platform and coaxially connected to the conical holes. Two through holes for the main gas outlet to pass through are symmetrically provided on the condensing platform outside the conical holes. A refrigeration structure is provided inside the condensing platform, which continuously wraps around the conical holes and the outside of the mixer outlet to reach the water vapor dew point temperature. The section of the main gas outlet located below the conical holes is bent downwards and has a leakage structure at the bottom end for periodically draining liquid.

[0012] Furthermore, it also includes a partition fixed to the top surface of the tank body, which divides the inner cavity of the tank into three sequentially connected chambers: an air inlet chamber and an air outlet chamber located on both sides of the partition, and a connecting chamber located below the partition that connects the air inlet chamber and the air outlet chamber.

[0013] The intake structure is connected to the intake chamber, the exhaust structure extends into the exhaust chamber, and the condensation structure is located in the exhaust chamber.

[0014] Furthermore, the main exhaust pipe is connected to the outer walls on both sides below the condenser platform, and the exhaust branch pipes are curved upwards and located below the corresponding conical holes.

[0015] Furthermore, a heat insulation plate is fixedly connected inside the condensing platform below the refrigeration structure, and a heating structure wrapped around the outside of the corresponding conical hole is fixedly connected inside the condensing platform below the heat insulation plate. The temperature difference between the refrigeration structure and the heating structure is no more than 10 degrees Celsius.

[0016] Furthermore, a water-guiding ring platform for guiding flow is fixed to the inner wall of the conical hole between the refrigeration structure and the heating structure, and the water-guiding ring platform is located above the corresponding air outlet branch pipe.

[0017] Furthermore, an inner filling block is fixedly connected to the air intake chamber. The top of the inner filling block has an arc-shaped inner groove that communicates with the air intake structure. The inner filling block below the arc-shaped inner groove has a barrel-shaped vertical groove that communicates with the connecting chamber.

[0018] Furthermore, the cavity filling block has an inclined inlet that communicates with the air intake structure. The inclined inlet is inclinedly arranged in the cavity filling block, and the extension line of the opening located in the arc-shaped inner groove is tangent to the outer wall of the arc-shaped inner groove.

[0019] Furthermore, a guide ring plate is fixedly connected to a section near the bottom of the barrel-shaped vertical groove, and a closed arc guide groove is opened inward at the top of the guide ring plate.

[0020] Furthermore, a liquid guiding ring plate is fixedly connected to the connecting chamber, which divides the connecting chamber into an upper and lower interconnected air guiding chamber and a liquid collecting chamber.

[0021] The principle and effect of this solution are as follows:

[0022] 1. Compared with the prior art, the present invention introduces air containing gasoline vapor in the oil depot into the tank through an external fan and an air intake structure. The air introduced into the tank is cooled by a condensation structure to reach the dew point, causing the water vapor to precipitate and condense into water droplets that drip down into the tank below along the mixed gas outlet and a conical hole, thus removing the water vapor from the air and completing the gas-liquid separation. The air after gas-liquid separation, carrying gasoline vapor, is discharged from the port of the gas outlet pipe located in the tank.

[0023] 2. Compared with the prior art, when water vapor condenses into water droplets and drips along the conical hole and the outlet of the mixed gas, the water droplets will drip onto the outlet pipe below. At this time, the temperature of the water droplets will be used to conduct heat through the outlet pipe and exchange heat with the air inside, so as to further precipitate the residual water vapor in the air. The precipitated water vapor condenses into water droplets and gathers in the leakage structure.

[0024] 3. Compared with the prior art, the present invention also installs a heating structure below the condenser platform. The heating structure, together with the refrigeration structure, forms a temperature gradient change range. When the temperature of the intake air is greater than the temperature of the area where the heating structure is located, the heating structure can assist the refrigeration structure in the precipitation of water vapor. When the temperature of the intake air is less than the temperature of the area where the heating structure is located, the heating structure can increase the temperature change of water vapor in the air, making it easier for water vapor to be precipitated.

[0025] 4. Compared with the prior art, the present invention also installs an internal filling block in the tank and has an arc-shaped inner groove inside it. Correspondingly, the air intake structure is connected through an inclined inlet, so that air is introduced into the arc-shaped inner groove through the inclined inlet. The end inclination angle of the inclined inlet is set so that when the air is discharged into the arc-shaped inner groove, it can flow along the inner wall of the arc-shaped inner groove and be introduced downward, so that the heavier water vapor in the air gathers outward and some of it condenses into droplets and drips downward. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 shows a cross-sectional view of a gas-liquid separator according to an embodiment of this application;

[0028] Figure 2 shows a partial schematic diagram of a gas-liquid separator according to an embodiment of this application;

[0029] Figure 3 shows a schematic diagram of the main outlet pipe and the branch outlet pipe of a gas-liquid separator according to an embodiment of this application. Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0031] The reference numerals in the accompanying drawings include: tank body 1, air inlet pipe 2, air outlet port 3, liquid outlet pipe 4, leakage straight pipe 5, cavity filling block 6, liquid collection chamber 7, air guiding chamber 8, conical hole 9, arc-shaped top cover 10, inclined inlet 11, liquid guiding ring plate 12, air outlet branch pipe 13, air outlet main pipe 14, filter screen 15, condenser pipe 16, resistance wire 17, variable diameter inclined pipe 18, leakage main pipe 19, condenser platform 20.

[0032] An embodiment of a gas-liquid separator is shown in Figure 1:

[0033] It includes a tank body, an air intake structure installed on the left side of the tank body, an air outlet structure installed on the right side of the tank body, a baffle installed inside the tank body, and a condensation structure installed on the right side of the baffle.

[0034] Air containing gasoline vapor, drawn in from the fuel depot, is introduced into the tank through the intake structure. This air also contains water vapor. The exhaust structure removes the dry air, which has undergone condensation to separate the water vapor, but still contains gasoline vapor. The condensation structure condenses and discharges the water vapor from the air to the bottom of the tank. A liquid outlet with a pipe and valve is located at the bottom of the tank to uniformly discharge the condensed water.

[0035] A baffle installed inside the tank body 1 divides the inner cavity of the tank body 1 into three areas. The air inlet chamber is located to the left of the baffle, and the air outlet chamber is located to the right of the baffle. The air inlet and air outlet chambers have the same volume. Below the baffle is a connecting chamber, which connects the air inlet and air outlet chambers. Inside the tank body 1, below the baffle, a liquid guiding ring plate 12 is also installed. The liquid guiding ring plate 12 gradually slopes downwards from the outside to the inside, and the inner ring height of the liquid guiding ring plate 12 is lower than the outer ring height. The liquid guiding ring plate 12 divides the connecting chamber into two interconnected parts: an upper air guiding chamber 8 and a lower liquid collecting chamber 7.

[0036] Specifically, the top and bottom of the tank body 1 are respectively an arc-shaped top cover 10 and an arc-shaped bottom.

[0037] An air inlet is located on the left outer wall of tank 1, angled clockwise within the tank. The beginning and end of the air inlet are not on the same straight extension line. The air intake structure includes an air intake pipe 2 with an air intake valve, an air intake connecting pipe connected to the air intake pipe 2 and mounted on the arc-shaped top cover 10, and an air intake duct installed at the end of the air intake connecting pipe and covering the air inlet. The air intake duct is installed vertically, with a vent hole on its side wall communicating with the air inlet. A pressure regulating valve is installed at the bottom of the air intake duct, which is normally closed, and the height of the vent hole is higher than the bottom height of the end of the air intake duct.

[0038] As shown in Figure 1, a cavity filling block 6 is installed on the left side of the partition, and a closed air guide ring is installed inside the cavity filling block 6.

[0039] The top of the cavity filling block 6 has an arc-shaped inner groove, and below the arc-shaped inner groove, the cavity filling block 6 has a coaxial barrel-shaped vertical groove of equal diameter. The left sides of the arc-shaped inner groove and the barrel-shaped vertical groove are fitted against the outer wall of the cavity filling block 6, with the fitting point directly opposite the air inlet. An inclined air hole communicating with the air inlet is formed inside the cavity filling block 6. As shown in Figure 2, the inclined inlet 11, after communicating with the end of the air inlet, also extends clockwise within the cavity filling block 6, extending until its extension line tangentially penetrates the cavity filling block 6 at various points on the inner wall, communicating with the internal chamber of the barrel-shaped vertical groove.

[0040] The air guide ring plate is fixedly installed in the barrel-shaped vertical groove. A closed arc guide groove is opened inward at the top of the air guide ring plate. The bottom end of the arc guide groove is attached to the inner wall of the air guide ring plate, and the top of the air guide ring plate is located below the inclined inlet 11.

[0041] An external fan draws in gasoline vapor-containing air from the oil depot and directs it into the intake pipe 2. The air is then guided through the intake pipe 2, intake connecting pipe, and intake duct to the intake port. The air is discharged into the cavity filling block 6 through the clockwise inclined intake port and inclined inlet 11. The external fan provides power and pressure to the gasoline vapor-containing air, guiding it into the cavity filling block 6 at a certain flow rate. Because the end of the inclined outlet is tangent to the inner wall of the cavity filling block 6, the air flowing out from the inclined outlet moves along the inner wall of the barrel-shaped vertical groove within the cavity filling block 6, causing the airflow to swirl within the cavity filling block 6. During this swirling process, water vapor in the air impacts the inner wall of the cavity filling block 6 due to centrifugal force, collecting and forming droplets. These droplets then flow down the inner wall of the cavity filling block 6 and drip down through the air guide ring plate to the liquid guide ring plate 12 below. Some air flows upwards into the upper arc-shaped inner groove, while most flows downwards into the lower barrel-shaped vertical groove. The closer to the inclined inlet 11, the more and more completely the droplets are separated. Furthermore, not only water droplets formed from water vapor are separated, but also small droplets formed from gasoline condensation are also separated. However, due to the high volatility of gasoline, it can still re-evaporate and mix back into the air after separation.

[0042] After the initial removal of water vapor, the air enters the air outlet chamber on the right side of the partition through the air guide chamber 8 below the partition. After passing through the condensation structure, it is discharged to the arc-shaped top cover 10 and then discharged through the air outlet structure.

[0043] As shown in Figure 3, the condensing structure includes a condensing platform 20 installed in and completely enclosing the outlet chamber. Four upward-facing conical holes 9 are circumferentially opened at the bottom of the condensing platform 20, and four mixed gas outlets, coaxial with and connected to the conical holes 9, are circumferentially opened at the top of the condensing platform 20. A refrigeration structure is also installed in the condensing platform 20, surrounding the outside of the conical holes 9.

[0044] Specifically, the bottom diameter of the conical hole 9 on the condenser platform 20 is larger than the diameter of the top end that connects to the gas mixture outlet. Furthermore, the diameter of the gas mixture outlet is the same as the diameter of the end of the connected conical hole 9. Two sets of interlocking, but closely fitted, filter screens 15 are also installed at the top end of the gas mixture outlet.

[0045] A heating structure is installed below the refrigeration structure on the condensing platform 20. A heat insulation plate is installed inside the condensing platform 20 between the refrigeration structure and the heating structure. In this embodiment, the conical hole 9 is separated by the heat insulation plate, dividing it into an upper refrigeration zone and a lower heating zone. In this embodiment, the temperature of the refrigeration zone gradually decreases from bottom to top, corresponding to a range of 5-2 degrees Celsius. The temperature at the very top of the conical hole 9 must be greater than or equal to 2 degrees Celsius. A spiral pattern is formed around the outside of the conical hole 9 on the condensing platform 20, and the tail and head of the spiral pattern between adjacent conical holes 9 are connected sequentially. The refrigeration structure includes a condenser tube 16 installed along the spiral pattern, through which a refrigerant flows. The predetermined temperature range is achieved by heat exchange between the refrigerant and the air inside the conical hole 9.

[0046] A closed water-drawing ring is welded downwards at the bottom of the refrigeration structure. The top of the water-drawing ring is located below the refrigeration structure and opposite the heat insulation plate, while the bottom of the water-drawing ring is located within the heating zone.

[0047] A resistance wire 17 is installed on the condenser platform 20 within the heating zone, located outside the conical hole 9. In this embodiment, the installed resistance wire 17 is used to raise the temperature of the conical hole 9 in the corresponding area to the range of 8-12 degrees Celsius.

[0048] After initial water vapor removal, the air enters the condenser platform 20 through the air guide chamber 8 and then flows upward into the platform, entering the four conical holes 9. During this upward flow, it first passes through a heating zone. When the temperature of the air drawn into the tank 1 is higher than that of the heating zone, the heating zone performs an initial cooling process, condensing and releasing water vapor from the air. The released water vapor adheres to the inner wall of the conical holes 9 in the heating zone and flows downwards until it drips from the bottom of the holes 9. The air then continues to rise through a cooling zone, further lowering the ambient temperature and causing the water vapor to condense and release more water. The released water flows down the inner wall of the conical holes 9 in the cooling zone and drips through a water-guiding ring. Finally, the air, after water vapor removal, is filtered through a filter screen 15 to remove minor impurities and then discharged through the exhaust structure.

[0049] When the temperature of the air drawn into tank 1 is lower than that of the heating zone, the air temperature is raised by passing through the heating zone before entering the cooling zone. This increases the temperature range of the air, making it easier for water vapor in the air to condense and precipitate. Furthermore, at this time, water vapor only precipitates in the cooling zone, not in the heating zone.

[0050] As shown in Figures 1 and 3, the gas outlet structure installed inside the tank 1 includes a main gas outlet pipe 14 and two branch gas outlet pipes 13 installed on both sides of the main gas outlet pipe 14. The main gas outlet pipe 14 is installed in the refrigeration chamber on the right side of the partition, with one end of the main gas outlet pipe 14 installed on the right side of the tank 1 and its port located below the inner arc-shaped top cover 10 of the tank 1. The remaining part of the main gas outlet pipe 14 extends downward through the condenser platform 20, extends into the lower part of the condenser platform 20, bends to the left, crosses the bottom area of ​​the conical platform, bends upward through the left side area of ​​the condenser platform 20, and extends upward until it passes through the gas outlet port opened on the tank 1. The end of the main gas outlet pipe 14 extending out of the gas outlet port is the gas outlet port 3.

[0051] Specifically, two through holes are respectively opened on the outside of the conical holes 9 on the condenser platform 20 for installing the main exhaust pipe 14. The main exhaust pipe 14 is located below the condenser platform 20, curved downwards, and spans the bottom of the two conical holes 9. An exhaust connecting hole is opened on each side of the main exhaust pipe 14 located below the condenser platform 20 and outside the conical holes 9 on both sides. An exhaust branch pipe 13 is installed between the exhaust connecting holes on the same side, and the exhaust branch pipes 13 are all curved upwards. In this embodiment, the middle part of the main exhaust pipe 14 below the condenser platform 20 is the lowest point, and the middle part of the exhaust branch pipe 13 is the highest point.

[0052] A drain hole is located below the lowest end of the main exhaust pipe 14, and a drain pipe 19 communicating with the drain hole is fixedly installed below the main exhaust pipe 14. A drain hole is located on the tank body 1, below the lowest end of the main exhaust pipe 14 and to the lower left of the drain pipe 19. A drain straight pipe 5 is installed through the drain hole, and a drain valve is installed on the drain straight pipe 5. A reducing inclined pipe 18 connects the drain straight pipe 5 and the drain pipe 19. The drain valve is normally closed during use.

[0053] The air passing through the condenser 20 has had most of its water vapor removed, carrying only gasoline vapor as it enters the exhaust pipe 14 at the port located below the arc-shaped top cover 10. The gasoline vapor-laden air entering the exhaust pipe 14 will be introduced from right to left through the exhaust pipe 14 and the exhaust branch pipes 13 on both sides, and will be discharged through the exhaust port 3 at the top of the left exhaust pipe 14.

[0054] As air travels through the main exhaust pipe 14 and the branch exhaust pipe 13, some of the condensed water droplets dripping from the conical orifice 9 will drip onto the main exhaust pipe 14 and the branch exhaust pipe 13 respectively. The temperature of the dripping water droplets remains within the range of 2-10 degrees Celsius. Through heat exchange between the dripping water droplets and the air inside the main exhaust pipe 14 and the branch exhaust pipe 13 via the pipe walls, the temperature of the air inside the pipes drops to the corresponding temperature, condensing the residual water vapor in the air again. At this time, the water droplets condensed from the branch exhaust pipe 13 will flow out through the exhaust connecting holes at both ends and into the drain hole on the main exhaust pipe 14, while the residual water vapor precipitated on the main exhaust pipe 14 will also flow into the drain hole accordingly.

[0055] In this embodiment, as shown in FIG3, the diameter of the main drain pipe 19 installed below the drain hole is larger than the diameter of the variable diameter inclined pipe 18, and the bottom end of the main drain pipe 19 is inclined to the right, which is consistent with the inclination direction and angle of the variable diameter inclined pipe 18, and the lower side wall of the main drain pipe 19 is connected to the lower side wall of the variable diameter inclined pipe 18.

[0056] Water condensed from the main exhaust pipe 14 and branch exhaust pipe 13 flows to the drain hole and then through the main drain pipe 19, via the reducing pipe 18, into the drain straight pipe 5. The end of the reducing pipe 18 is higher than the maximum height of the drain straight pipe 5. Because the drain valve is normally closed during continuous air intake, water droplets at the condensation point remain in the drain straight pipe 5. After a certain period, the water level rises and exceeds the maximum height of the drain straight pipe 5. At this point, air no longer enters the drain straight pipe 5. Furthermore, the smaller diameter of the reducing pipe 18 reduces water evaporation, and the drain hole, located in a recessed area, further removes residual water vapor from the air, thus completing the separation of water vapor from the air.

[0057] A grounded iron chain is also installed outside the tank 1 to discharge the charge accumulated inside the tank 1.

[0058] In use, the liquid outlet valve and leakage valve are closed, and air containing gasoline vapor is introduced. The air passes sequentially through the inner cavity of the filling block 6 and the condensation structure into the main exhaust pipe 14. The air swirls within the barrel-shaped vertical groove of the filling block 6, initially condensing into droplets. These droplets drip along the inner wall of the filling block 6 onto the lower liquid guide plate and slide into the collection chamber 7. The air then enters the condensation structure, where temperature variations cause the water vapor in the air to reach its dew point. This dew vapor, combined with condensation nuclei in the air, condenses into water droplets, which drip onto the lower exhaust pipe 14 and exhaust branch pipe 13. The continuously dripping water droplets exchange heat with the internal air through the exhaust pipe 14 and exhaust branch pipe 13, further condensing the water vapor and removing it. The collected condensed water is discharged by opening and closing the valves after a working period.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A gas-liquid separator, characterized in that: The system includes a tank body, an air inlet structure on one side of the tank body, and an air outlet structure on the other side of the tank body. The tank body also includes a condensation structure for condensing water vapor into water droplets, and a liquid outlet at the bottom of the tank body. It also includes a partition fixed to the top surface of the tank body, which divides the tank's internal cavity into three sequentially connected chambers: an air inlet chamber and an air outlet chamber located on either side of the partition, and a connecting chamber below the partition that connects the air inlet and air outlet chambers. The condensation structure includes a condensation platform installed inside the air outlet chamber and completely sealing the air outlet chamber, several conical holes circumferentially opened on the bottom surface of the condensation platform, and several mixed gas outlets circumferentially opened on the top surface of the condensation platform and coaxially connected to the conical holes. The air outlet structure includes a main air outlet pipe, one end of which is located inside the tank body and extends into the tank body near the top surface. The remaining exhaust pipe extends downward through the condenser platform and bends to the left below the condenser platform. After crossing the bottom area of ​​the conical platform, it bends upward through the left side area of ​​the condenser platform and extends upward. The tank body has an exhaust port for the other end of the exhaust pipe to extend out. Several through holes for the exhaust pipe to pass through are symmetrically arranged on the condenser platform outside the conical hole. The condenser platform has a refrigeration structure that continuously wraps around the outside of the conical hole and the outside of the mixer outlet to reach the water vapor dew point temperature. The section of the exhaust pipe below the conical hole is bent downward and connected to a leakage structure at the bottom for periodically draining liquid. The air introduced into the tank is cooled by the condensation structure to reach the dew point, completing the gas-liquid separation. The air after gas-liquid separation, carrying gasoline vapor, is discharged from the port of the exhaust pipe inside the tank.

2. The gas-liquid separator according to claim 1, characterized in that, The intake structure is connected to the intake chamber, the exhaust structure extends into the exhaust chamber, and the condensation structure is located in the exhaust chamber.

3. A gas-liquid separator according to claim 2, characterized in that, The main exhaust pipe is located between the two outer walls below the condenser platform, and exhaust branch pipes are connected to it. The exhaust branch pipes are curved upwards and are located below the corresponding conical holes.

4. A gas-liquid separator according to claim 3, characterized in that, A heat insulation plate is fixedly connected inside the condensing platform below the refrigeration structure. A heating structure wrapped around the outside of the corresponding conical hole is fixedly connected inside the condensing platform below the heat insulation plate. The temperature difference between the refrigeration structure and the heating structure is no more than 10 degrees Celsius.

5. A gas-liquid separator according to claim 4, characterized in that, The inner wall of the conical hole between the refrigeration structure and the heating structure is fixed with a water-guiding ring platform for guiding the flow, and the water-guiding ring platform is located above the corresponding air outlet branch pipe.

6. A gas-liquid separator according to claim 2, characterized in that, An internal filling block is fixedly connected to the air intake chamber. The top of the internal filling block has an arc-shaped inner groove that communicates with the air intake structure. The internal filling block below the arc-shaped inner groove has a barrel-shaped vertical groove that communicates with the connecting chamber.

7. A gas-liquid separator according to claim 6, characterized in that, The cavity filling block has an inclined inlet that communicates with the air intake structure. The inclined inlet is inclined in the cavity filling block, and the extension line of the opening located in the arc-shaped inner groove is tangent to the outer wall of the arc-shaped inner groove.

8. A gas-liquid separator according to claim 6, characterized in that, A guide ring plate is fixedly connected to the bottom of the barrel-shaped vertical groove, and a closed arc guide groove is opened inward at the top of the guide ring plate.

9. A gas-liquid separator according to claim 2, characterized in that, A liquid guiding ring plate is fixedly connected to the connecting chamber, which divides the connecting chamber into an upper and lower interconnected air guiding chamber and a liquid collecting chamber.

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