Gas-liquid cyclone separator

Abstract

The invention discloses a gas-liquid cyclone separator, and belongs to the technical field of gas-liquid separation, the gas-liquid cyclone separator comprises a separator, the separator is provided with a feed inlet, the bottom of the separator is conical below the feed inlet, the separator is internally provided with a plurality of coil pipe assemblies which are vertically arranged, and the coil pipe assemblies are uniformly arranged along the circumferential direction. In the scheme, the bottom of the separator is conical, so that a gas-liquid mixture reaching the bottom of the separator can be further accelerated, the gas-liquid mixture can form a vortex from bottom to top in the conical barrel, the gas-liquid mixture forms a gas-liquid column in the vortex state, liquid beads in the vortex gas-liquid column can be attracted mutually and quickly become large liquid beads, and the gas-liquid mixture can be separated from the gas-liquid column. And meanwhile, circulating cooling water is introduced into the coil pipe in the separator, and chemical components with low boiling points are converted into liquid phases from gas phases. The gas flow is converted into rising rotary motion, and gas-liquid separation can be further carried out in the rising process, so that the gas-liquid separation effect is improved.

Description

Technical Field

[0001] The present invention relates to a separator, and more particularly to a gas-liquid cyclone separator. Background Art

[0002] Gas-liquid cyclone separators are mainly used for gas-liquid separation. The principle is gravity sedimentation, that is, due to the different densities of gas and liquid, when the liquid flows with the gas, the liquid will be affected by gravity to produce a downward speed, while the gas still flows in the original direction, that is, the liquid and the gas tend to separate in the gravity field. When the current cyclone separator is used to separate gas and liquid, since the liquid can be dispersed into fine particles, the one-time cyclone separation is not thorough, and a small amount of liquid will be mixed in when the exhaust is directly discharged. If the purity of the separation is particularly high, it is necessary to separate it again, which increases the equipment and energy consumption costs. The polymerization reaction of organic matter often produces a large amount of gas under high temperature conditions. Usually, the gas also carries organic matter. The gas-liquid mixture carrying organic matter enters the subsequent separator, which will be deposited and scaled on the separator wall, thereby affecting the separation effect and the stable operation of the entire system. It is difficult to clean it manually.

[0003] For example: Chinese patent announcement number CN215388619U, announcement date January 4, 2022, the name of the utility model is a glass fiber reinforced plastic gas-liquid separator, the application discloses a gas-liquid separator, including a separator body, the interior of the separator body is provided with guide spiral blades, swirl sheets and separation discs from bottom to top; a gap is left between the guide spiral blades and the bottom of the separator body for accommodating liquid, and a liquid inlet pipe is provided between the guide spiral blades and the swirl sheets; the swirl sheets are provided with a plurality of sheets, and the plurality of swirl sheets are rotationally symmetrical about the central axis of the separator body; the separation disc includes an outer fixing ring, an inner fixing ring, a central column, a first baffle and a second baffle; the outer fixing ring is fixed on the inner wall of the separator body, the inner fixing ring is sleeved on the inner side of the outer fixing ring, and is connected by a plurality of inclined first baffles; the central column is sleeved on the inner side of the inner fixing ring, and is connected by a plurality of inclined second baffles. The glass fiber reinforced plastic gas-liquid separator described in the utility model can effectively improve the gas-liquid separation effect. However, this solution has a more complex structure and requires additional driving force from structures such as spiral guide vanes, and its gas-liquid separation effect is also lower. Summary of the invention

[0004] The present invention overcomes the problem of poor gas-liquid separation effect of existing gas-liquid cyclone separators and provides a gas-liquid cyclone separator. This solution can achieve high-efficiency separation of gas and liquid phases and increase the normal operation cycle of the process.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a gas-liquid cyclone separator, comprising a separator, a feed pipe is provided on the separator, the bottom of the separator and below the feed pipe is conical, and a plurality of vertically arranged coil assemblies are provided inside the separator, and the coil assemblies are evenly arranged along the circumferential direction. In this scheme, the feed pipe is used to pass the gas-liquid mixture, and the bottom of the separator is set to be conical so that the gas-liquid mixture reaching the bottom of the separator can be further accelerated, so that the gas-liquid mixture can form a vortex from bottom to top in the conical tube, so that the gas-liquid mixture forms a gas-liquid column in the vortex state, and the liquid droplets in the vortex gas-liquid column will attract each other and quickly become large liquid droplets, thereby realizing rapid gas-liquid separation, and at the same time, circulating cooling water is passed through the coil inside the separator to convert the low-boiling chemical components from gas phase to liquid phase. In the conical tube part, the rotation radius is reduced and the tangential speed is increased, and the airflow and the droplets perform downward spiral motion. Near the bottom of the conical tube, the airflow is converted into an ascending rotational motion, and gas-liquid separation can be further performed during the ascending process, thereby improving the gas-liquid separation effect.

[0006] Preferably, the feed pipe is tangent to the outer side wall of the separator, and the angle between the separator radial direction at the position of the feed pipe and the feeding direction of the feed pipe is 35° to 55°. The tangent relationship between the feed pipe and the outer side wall of the separator can make the gas-liquid mixture move closely against the side wall of the separator, and is conducive to reducing wind resistance, so that the gas-liquid mixture can rotate along the circumferential direction of the inner side wall of the separator to perform gas-liquid separation; the angle between the separator radial direction at the position of the feed pipe and the feeding direction of the feed pipe is defined as α, and α is preferably between 35° and 55°.

[0007] Preferably, the coil assembly includes a vertically arranged column and a coil wound on the column, and the separator is provided with a first inlet and a first outlet, and the first inlet and the first outlet are connected to the coil. The coil assembly is vertically arranged and extends from the upper part of the separator to the lower part of the separator. The coil on the coil assembly can be used to pass fluid medium to meet the corresponding effects of the separator when performing different operations. For example, when gas-liquid separation is performed, cooling water is passed in so that the gas phase inside the separator is condensed into water droplets to achieve gas-liquid separation; when a dirt cleaning operation is performed, hot steam is passed in so that the cleaning liquid inside the separator is heated to dissolve the dirt in the separator. The first inlet and the first outlet are used for the coil to connect the external fluid medium to form a fluid circuit.

[0008] Preferably, a gas phase channel is provided at the top of the separator and located inside the coil assembly, and a gas phase port is also provided at the top of the separator, and the gas phase channel is connected to the gas phase port. The gas phase channel and the gas phase port are used to discharge the gas separated in the separator, and since the gas phase will eventually move upward from the inside of the coil assembly to be discharged, the gas phase channel needs to be set in the middle position of the coil assembly.

[0009] Preferably, the gas phase channel comprises a special-shaped channel with a large top and a small bottom, and a liquid collecting plate is arranged in the special-shaped channel, and the liquid collecting plate is in a cone shape with a small top and a large bottom. The gas phase in the gas phase channel flows from bottom to top, and the special-shaped channel is in a shape of a large top and a small bottom. When the gas phase enters the special-shaped pipe, the flow rate of the gas phase can be effectively reduced. At the same time, the liquid collecting plate arranged in the special-shaped channel can liquefy the gas phase again, so that small liquid droplets merge together to form larger liquid droplets to settle. The liquid collecting plate is small at the top and large at the bottom, which can hinder the movement of the gas phase on the one hand, so that the gas phase can fully contact the liquid collecting plate, and on the other hand, it can make the movement path of the gas phase longer, thereby improving the gas-liquid separation effect.

[0010] Preferably, a condenser is further included, the condenser is connected to the feed pipe, the condenser is provided with a second inlet and a second outlet, and a condenser tube connected with the second inlet and the second outlet is provided in the condenser. The condenser is used to perform a first gas-liquid separation on the gas-liquid mixture, and the second inlet and the second outlet are used to introduce a fluid medium into the condenser tube for condensation and cleaning and heating of the condenser.

[0011] Preferably, the condenser comprises a vertical section, the second inlet and the second outlet are arranged in the vertical section, and the vertical section is provided with a gas-liquid phase inlet arranged transversely. The vertical section of the condenser is used to introduce a gas-liquid mixture, and the gas-liquid mixture is introduced transversely from the upper side of the condenser, and the airflow collides with the inner wall of the condenser and flows downward into the condenser and flows toward the separator.

[0012] Preferably, the condenser further comprises an inclined section, the inclined section is connected to the feed pipe, and the inclined section is arranged obliquely downward relative to the feed pipe. The inclined section of the condenser is connected to the feed pipe, thereby determining the feeding direction of the feed pipe. Since the gas-liquid mixture needs to rotate circumferentially and move downward along the inner wall of the separator after entering the separator, the inclined section of the condenser and the feed pipe need to be arranged in a certain downward oblique state to guide the gas phase mixture.

[0013] Preferably, the first cleaning system is further included, and the first cleaning system is connected to the first inlet and the first outlet. The first cleaning system is used to clean the separator, and the cleaning liquid inside the separator is heated through the coil connected to the first inlet and the first outlet to dissolve the dirt and residue inside the separator.

[0014] Preferably, the second cleaning system is further included, and the second cleaning system is connected to the second inlet and the second outlet. The second cleaning system is used to clean the condenser, and the cleaning liquid inside the condenser is heated through the second inlet and the second outlet connected to the condenser tube to dissolve the dirt and residue inside the condenser.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) It has a simple structure and can achieve high-efficiency separation of gas and liquid phases, thereby increasing the normal operation cycle of the process; (2) It can perform multiple multi-stage gas-liquid separation operations on the gas-liquid mixture, thereby greatly improving the gas-liquid separation effect; (3) It can not only achieve the recovery of materials, but also implement green emissions and clean production, with strong practicality and high promotion value, and can solve the current difficult pollution source control problems in factories; (4) When the cyclone separator is not separating smoothly, cleaning liquid can be added at any time for cleaning to avoid clogging of the cyclone separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural process flow of the present invention.

[0017] Figure 2 Schematic diagram of the internal structure of the separator of the present invention.

[0018] Figure 3 It is a schematic diagram of the working principle of the present invention.

[0019] Figure 4 It is a top view of the interior of the separator of the present invention.

[0020] In the figure: 1. separator, 2. feed pipe, 3. coil assembly, 4. column, 5. coil, 6. first inlet, 7. first outlet, 8. gas phase channel, 9. gas phase port, 10. special-shaped channel, 11. liquid collecting plate, 12. condenser, 13. second inlet, 14. second outlet, 15. vertical section, 16. inclined section, 17. gas-liquid phase inlet, 18. head, 19. separation chamber, 20. conical cylinder, 21. drain port, 22. first liquid inlet pipeline, 23. first liquid outlet pipeline, 24. first air inlet pipeline, 25. first air outlet pipeline, 26. gas phase recovery device, 27. first cleaning device, 28. waste residue collection device, 29. liquid phase storage tank, 30. second cleaning device. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0022] Example 1: Figures 1 to 4A gas-liquid cyclone separator shown includes a separator 1, which includes a head 18, a separation chamber 19 and a conical cylinder 20 from top to bottom. The head 18 and the separation chamber 19 are detachably connected, and the separation chamber 19 and the conical cylinder 20 are integrally formed. A feed pipe 2 is provided on the separation chamber 19, and the feed pipe 2 is a special-shaped pipe. Specifically, the feed pipe 2 is tangent to the outer wall of the cylindrical separation chamber 19, and an angle α of 45° is formed between the axial direction of the pipe mouth of the feed pipe 2 (radial direction of the separator 19) and the axial direction of the feed pipe 2. The tangent between the feed pipe 2 and the outer wall of the separator 19 can make the gas-liquid mixture move closely against the inner wall of the separator 1, and is conducive to reducing wind resistance, so that the gas-liquid mixture can rotate circumferentially along the inner wall of the separator 1 to perform gas-liquid separation. There are also multiple sets of coil assemblies 3 in the separator 1. The coil assemblies 3 include columns 4 and coils 5. The columns 4 are vertically fixed in the separation chamber 19 and the conical tube 20. The coils 5 are spirally wound on the columns 4. All the coils 5 are in parallel and interconnected. When gas-liquid separation is performed, the gas-liquid mixture enters the separator 1 from the feed pipe 2, and then moves circumferentially along the inner wall of the separation chamber 19. Since the gas-liquid mixture enters the bottom of the conical tube 20 from the separation chamber 19 in a spiral, the gas-liquid mixture can form a vortex from bottom to top in the conical tube 20, so that the gas-liquid mixture forms a gas-liquid column in the vortex state. The liquid droplets in the vortex gas-liquid column will attract each other and quickly become large liquid droplets, thereby realizing rapid gas-liquid separation. At the same time, the circulating cooling water is introduced into the coils 5 inside the separator 1, and the chemical components with low boiling points are converted from gas phase to liquid phase. In the conical tube 20 part, the rotation radius is reduced and the tangential speed is increased, and the airflow and the droplets perform downward spiral motion. Near the bottom of the conical tube 20, the airflow changes into an ascending rotational motion.

[0023] It should be noted that the diameter of the feed pipe 2 decreases along the feed direction. Specifically, Figure 1 or Figure 2 As shown, the caliber of the end of the feed pipe 2 away from the separation chamber 19 is larger than the caliber of the end of the feed pipe 2 close to the separation chamber 19, and the feed pipe 2 as a whole is arranged at a certain angle to the horizontal plane, so that the feed pipe 2 is arranged tilted downward along its feeding direction, which can guide the gas-liquid mixture entering the feed pipe 2. When the gas-liquid mixture enters the feed pipe 2, under the guidance of the feed pipe 2, the gas-liquid mixture enters the separator 19 downward to form a spiral downward fluid. The inclination angle between the bottom side of the feed pipe 2 and the horizontal plane is 5° to 10°, and the inclination angle between the top side of the feed pipe 2 and the horizontal plane is 30° to 45°, so that the diameter of the feed pipe 2 gradually changes from large to small along the feeding direction; the gradual reduction in the diameter can accelerate the gas-liquid mixture entering the feed pipe 2, thereby ensuring that the gas-liquid mixture maintains a good contact state with the inner wall of the separation chamber 19.

[0024] The coil assembly 3 is arranged inside the separator 1, as shown in FIG. Figure 2 As shown, the coil assembly 3 is arranged in the vertical direction and is evenly distributed in the circumferential ring shape in the separator 1, wherein the coil assembly 3 includes an upper coil assembly and a lower coil assembly, wherein the upper coil assembly is mainly located in the separation chamber 19, and the lower coil assembly is mainly located in the conical tube 20, the top of the upper coil assembly is located at the output end of the feed pipe 2 and is nearly flush with the feed pipe 2, while the bottom of the upper coil assembly is located below the top of the lower coil assembly, the lower coil assembly is located inside the ring formed by the upper coil assembly, and the bottom of the lower coil is located above the middle position of the conical tube 20. Coils 5 are wound around the columns 4 of the upper coil assembly and the lower coil assembly, and the coils 5 on the upper coil assembly and the lower coil assembly are connected and arranged in parallel, and all the coils 5 share an input end and an output end. When performing the gas-liquid mixture separation operation, the gas-liquid mixture first enters the position between the inner wall of the separation chamber 19 and the upper coil assembly, then moves downward in a circular motion around the outer side of the upper coil assembly, and then enters the position of the conical cylinder 20, and moves downward in a circular motion around the outer side of the lower coil assembly. Since the structure of the conical cylinder 20 is larger at the top and smaller at the bottom, as the gas-liquid mixture moves downward, the flow rate of the gas-liquid mixture increases. During the movement of the gas-liquid mixture, it will be subjected to a reaction force toward the axis of the conical cylinder 20. Near the bottom of the conical cylinder 20, that is, near the bottom of the lower coil assembly, this reaction force causes the gas-liquid mixture to produce a reverse upward movement at the axis.

[0025] Among them, when the gas-liquid mixture is at the bottom of the conical cylinder 20, most of the liquid phase gathers together to form larger water droplets, and then condenses together and moves toward the bottom of the conical cylinder 20 under the action of gravity. A discharge port 21 is provided at the bottom of the conical cylinder 20, and the liquid phase is discharged from the discharge port 21 after it gathers into water droplets; another part of the liquid phase rises in the opposite direction with the gas, rising from the bottom of the lower coil assembly and between the upper coil assembly to the top of the separator 1.

[0026] At the top of the separator 1, the head 18 and the separation chamber 19 are detachably connected. Specifically, screw holes are provided on the outside of the separation chamber 19 and the outside of the head 18, and the separation chamber 19 and the head 18 can be connected together by bolts. A gas phase channel 8 is provided at the top of the separator 1. The top of the gas phase channel 8 is fixedly installed with the top of the head 18. The bottom of the gas phase channel 8 extends to the middle of the upper coil assembly that forms a ring and is lower than the top of the upper coil assembly. When the gas-liquid mixture rises in the reverse direction at the bottom of the lower coil assembly, it enters the gas phase channel 8 from the position of the upper coil assembly, and then is discharged from the gas phase port 9 at the top of the head 18.

[0027] It should be noted that in the present embodiment, the coil assembly 3 is distributed in a ring shape, and a certain distance is set between the coil assemblies 3. When the gas-liquid mixture moves in the separation chamber 19, the flow rate of the gas-liquid mixture between the coil assembly 3 and the inner wall of the separator 1 is relatively large, while the flow rate of the gas-liquid mixture between the upper coil assembly and the lower coil assembly is relatively low. As a result, the gas-liquid mixture located in the middle of the coil assembly 3 will once again enter the space between the coil assembly 3 and the inner wall of the separator 1 from the gap formed between the coil assemblies 3 to perform gas-liquid separation operation, further reducing the liquid phase component in the gas-liquid mixture and reducing the liquid phase component of the gas-liquid mixture entering the gas phase pipeline 8.

[0028] The gas phase channel 8 is a special-shaped tube structure. The top and bottom of the gas phase channel 8 are both circular tubes, and the radial dimension of the top is larger than the radial dimension of the bottom. A conical special-shaped channel 10 is integrally connected between the top circular tube and the bottom circular tube of the gas phase channel 8. When the gas-liquid mixture enters the top circular tube from the bottom circular tube of the gas phase channel 8, the flow rate of the gas-liquid mixture will become slow. A liquid collecting plate 11 is also provided in the special-shaped channel 10. The liquid collecting plate 11 is also a conical structure. The top size of the liquid collecting plate 11 is smaller than the bottom size of the liquid collecting plate 11, and the bottom of the liquid collecting plate 11 is located in the special-shaped channel 10. The top of the liquid collecting plate 11 is located at the top circular tube position of the gas phase channel 8, which can increase the path and time of gas circulation. When the gas-liquid mixture enters the special-shaped channel 10, it will contact the bottom of the liquid collecting plate 11 and adhere to its surface. The tiny droplets gather into larger droplets until the gravity generated by itself exceeds the combined force of the rising force of the gas and the surface tension of the liquid. The droplets separate and fall from the liquid collecting plate 11. The conical liquid collecting plate 11 can increase the time for the gas-liquid mixture to pass through the internal medium flow channel, so that the condensation effect of the gas-liquid mixture is about 5 times the residence time of the traditional method of the same volume, and the separation efficiency of droplets of 5 to 10 μm is about 98%, so that the liquid phase in the gas-liquid mixture is gathered at the bottom of the liquid collecting plate 11 to further remove the liquid phase in the gas-liquid mixture.

[0029] like Figure 2 As shown, a first inlet 6 and a first outlet 7 are also provided on the head 18 of the separator 1. The first inlet 6 and the first outlet 7 are connected to the input end and the output end of the coil 5 respectively. In addition, as shown in FIG. Figure 1 As shown, the number of the first inlet 6 and the first outlet 7 can also be set to two, but they also share one input and one output; it is sufficient to connect the multi-drop pipes of the internal coil 5 with the corresponding first inlet 6 and first outlet 7, and the coils 5 are still in parallel.

[0030] A first cleaning system is arranged outside the first inlet 6 and the first outlet 7, and the first cleaning system includes a first liquid inlet pipe 22, a first liquid outlet pipe 23, a first air inlet pipe 24 and a first air outlet pipe 25. The first liquid inlet pipe 22 is connected to the first inlet 6, and the first liquid outlet pipe 23 is connected to the first outlet 7. Condensed water can be introduced into the first liquid inlet pipe 23, and the condensed water will enter the coil 5 and finally be discharged from the first liquid outlet pipe 23. When the separator 1 performs gas-liquid separation operation, the condensed water introduced into the coil 5 can condense the gas-liquid mixture in the separator 1, thereby improving the condensation effect and the gas-liquid separation effect. The first air inlet pipe 24 is connected to the first outlet 7, and the first air outlet pipe 25 is connected to the first inlet 6. Hot steam can be introduced into the first air inlet pipe 24. When the separator 1 needs to be cleaned, cleaning liquid can be introduced into the separator 1, and then the hot steam introduced through the first air inlet pipe 24 increases the temperature of the coil 5, thereby heating the cleaning liquid inside the separator 1, which is beneficial to the removal of dirt inside the separator 1. Manual valves are also separately provided on each pipeline to control the on-off status of each pipeline. Of course, in addition to manual control, automatic control can also be designed.

[0031] The gas phase port 9 at the top of the separator 1 is connected to the gas phase recovery device 26, and is also connected to the first cleaning device 27. When the cleaning operation is required, the valve corresponding to the gas phase recovery device 26 is closed, so that the passage between the gas phase port 9 and the gas phase recovery device 26 is disconnected, and the cleaning liquid is introduced from the gas phase port 9 into the separator 1 to perform the cleaning work. When the gas-liquid separation operation is required, the valve corresponding to the first cleaning device 27 is closed, so that the passage between the gas phase port 9 and the first cleaning device 27 is disconnected, and the gas separated in the separator 1 enters the gas phase recovery device 26 from the gas phase port 9. Similarly, the waste residue collection device 28 and the liquid phase storage tank 29 are connected to the discharge port 21 of the separator 1; after the cleaning operation is completed, the waste residue and wastewater are discharged into the waste residue collection device 28 for treatment, and when the gas-liquid separation operation is performed, the separated liquid phase is collected by the liquid phase storage tank 29.

[0032] Example 2: Figures 1 to 4A gas-liquid cyclone separator shown includes a separator 1, which includes a head 18, a separation chamber 19 and a conical barrel 20 from top to bottom. The head 18 and the separation chamber 19 are detachably connected, and the separation chamber 19 and the conical barrel 20 are integrally formed. A feed pipe 2 is provided on the separation chamber 19, and the feed pipe 2 is a special-shaped pipe. Specifically, the feed pipe 2 is tangent to the outer wall of the cylindrical separation chamber 19, and the axial direction of the pipe mouth of the feed pipe 2 (radial direction of the separator 19) forms an angle of 45° with the axial direction of the feed pipe 2. The tangent between the feed pipe 2 and the outer wall of the separator 19 can make the gas-liquid mixture move closely against the inner wall of the separator 1, and is conducive to reducing wind resistance, so that the gas-liquid mixture can rotate circumferentially along the inner wall of the separator 1 to perform gas-liquid separation. There are also multiple sets of coil assemblies 3 in the separator 1. The coil assemblies 3 include columns 4 and coils 5. The columns 4 are vertically fixed in the separation chamber 19 and the conical tube 20. The coils 5 are spirally wound on the columns 4. All the coils 5 are in parallel and interconnected. When gas-liquid separation is performed, the gas-liquid mixture enters the separator 1 from the feed pipe 2, and then moves circumferentially along the inner wall of the separation chamber 19. Since the gas-liquid mixture enters the bottom of the conical tube 20 from the separation chamber 19 in a spiral, the gas-liquid mixture can form a vortex from bottom to top in the conical tube 20, so that the gas-liquid mixture forms a gas-liquid column in the vortex state. The liquid droplets in the vortex gas-liquid column will attract each other and quickly become large liquid droplets, thereby realizing rapid gas-liquid separation. At the same time, the circulating cooling water is introduced into the coils 5 inside the separator 1, and the chemical components with low boiling points are converted from gas phase to liquid phase. In the conical tube 20 part, the rotation radius is reduced and the tangential speed is increased, and the airflow and the droplets perform downward spiral motion. Near the bottom of the conical tube 20, the airflow changes into an ascending rotational motion.

[0033] It should be noted that the diameter of the feed pipe 2 decreases along the feed direction. Specifically, Figure 1 or Figure 2 As shown, the caliber of the end of the feed pipe 2 away from the separation chamber 19 is larger than the caliber of the end of the feed pipe 2 close to the separation chamber 19, and the feed pipe 2 as a whole is arranged at a certain angle to the horizontal plane, so that the feed pipe 2 is arranged tilted downward along its feeding direction, which can guide the gas-liquid mixture entering the feed pipe 2. When the gas-liquid mixture enters the feed pipe 2, under the guidance of the feed pipe 2, the gas-liquid mixture enters the separator 19 downward to form a spiral downward fluid. The inclination angle between the bottom side of the feed pipe 2 and the horizontal plane is 5° to 10°, and the inclination angle between the top side of the feed pipe 2 and the horizontal plane is 30° to 45°, so that the diameter of the feed pipe 2 gradually changes from large to small along the feeding direction; the gradual reduction in the diameter can accelerate the gas-liquid mixture entering the feed pipe 2, thereby ensuring that the gas-liquid mixture maintains a good contact state with the inner wall of the separation chamber 19.

[0034] The coil assembly 3 is arranged inside the separator 1, as shown in FIG. Figure 2 As shown, the coil assembly 3 is arranged in the vertical direction and is evenly distributed in the circumferential ring shape in the separator 1, wherein the coil assembly 3 includes an upper coil assembly and a lower coil assembly, wherein the upper coil assembly is mainly located in the separation chamber 19, and the lower coil assembly is mainly located in the conical tube 20, the top of the upper coil assembly is located at the output end of the feed pipe 2 and is nearly flush with the feed pipe 2, while the bottom of the upper coil assembly is located below the top of the lower coil assembly, the lower coil assembly is located inside the ring formed by the upper coil assembly, and the bottom of the lower coil is located above the middle position of the conical tube 20. Coils 5 are wound around the columns 4 of the upper coil assembly and the lower coil assembly, and the coils 5 on the upper coil assembly and the lower coil assembly are connected and arranged in parallel, and all the coils 5 share an input end and an output end. When performing the gas-liquid mixture separation operation, the gas-liquid mixture first enters the position between the inner wall of the separation chamber 19 and the upper coil assembly, then moves downward in a circular motion around the outer side of the upper coil assembly, and then enters the position of the conical cylinder 20, and moves downward in a circular motion around the outer side of the lower coil assembly. Since the structure of the conical cylinder 20 is larger at the top and smaller at the bottom, as the gas-liquid mixture moves downward, the flow rate of the gas-liquid mixture increases. During the movement of the gas-liquid mixture, it will be subjected to a reaction force toward the axis of the conical cylinder 20. Near the bottom of the conical cylinder 20, that is, near the bottom of the lower coil assembly, this reaction force causes the gas-liquid mixture to produce a reverse upward movement at the axis.

[0035] Among them, when the gas-liquid mixture is at the bottom of the conical cylinder 20, most of the liquid phase gathers together to form larger water droplets, and then condenses together and moves toward the bottom of the conical cylinder 20 under the action of gravity. A discharge port 21 is provided at the bottom of the conical cylinder 20, and the liquid phase is discharged from the discharge port 21 after it gathers into water droplets; another part of the liquid phase rises in the opposite direction with the gas, rising from the bottom of the lower coil assembly and between the upper coil assembly to the top of the separator 1.

[0036] At the top of the separator 1, the head 18 and the separation chamber 19 are detachably connected. Specifically, screw holes are provided on the outside of the separation chamber 19 and the outside of the head 18, and the separation chamber 19 and the head 18 can be connected together by bolts. A gas phase channel 8 is provided at the top of the separator 1. The top of the gas phase channel 8 is fixedly installed with the top of the head 18. The bottom of the gas phase channel 8 extends to the middle of the upper coil assembly that forms a ring and is lower than the top of the upper coil assembly. When the gas-liquid mixture rises in the reverse direction at the bottom of the lower coil assembly, it enters the gas phase channel 8 from the position of the upper coil assembly, and then is discharged from the gas phase port 9 at the top of the head 18.

[0037] It should be noted that in the present embodiment, the coil assembly 3 is distributed in a ring shape, and a certain distance is set between the coil assemblies 3. When the gas-liquid mixture moves in the separation chamber 19, the flow rate of the gas-liquid mixture between the coil assembly 3 and the inner wall of the separator 1 is relatively large, while the flow rate of the gas-liquid mixture between the upper coil assembly and the lower coil assembly is relatively low. As a result, the gas-liquid mixture located in the middle of the coil assembly 3 will once again enter the space between the coil assembly 3 and the inner wall of the separator 1 from the gap formed between the coil assemblies 3 to perform gas-liquid separation operation, further reducing the liquid phase component in the gas-liquid mixture and reducing the liquid phase component of the gas-liquid mixture entering the gas phase pipeline 8.

[0038] The gas phase channel 8 is a special-shaped tube structure. The top and bottom of the gas phase channel 8 are both circular tubes, and the radial dimension of the top is larger than the radial dimension of the bottom. A conical special-shaped channel 10 is integrally connected between the top circular tube and the bottom circular tube of the gas phase channel 8. When the gas-liquid mixture enters the top circular tube from the bottom circular tube of the gas phase channel 8, the flow rate of the gas-liquid mixture will become slow. A liquid collecting plate 11 is also provided in the special-shaped channel 10. The liquid collecting plate 11 is also a conical structure. The top size of the liquid collecting plate 11 is smaller than the bottom size of the liquid collecting plate 11, and the bottom of the liquid collecting plate 11 is located in the special-shaped channel 10. The top of the liquid collecting plate 11 is located at the top circular tube position of the gas phase channel 8, which can increase the path and time of gas circulation. When the gas-liquid mixture enters the special-shaped channel 10, it will contact the bottom of the liquid collecting plate 11 and adhere to its surface. The tiny droplets gather into larger droplets until the gravity generated by itself exceeds the combined force of the rising force of the gas and the surface tension of the liquid. The droplets separate and fall from the liquid collecting plate 11. The conical liquid collecting plate 11 can increase the time for the gas-liquid mixture to pass through the internal medium flow channel, so that the condensation effect of the gas-liquid mixture is about 5 times the residence time of the traditional method of the same volume, and the separation efficiency of droplets of 5 to 10 μm is about 98%, so that the liquid phase in the gas-liquid mixture is gathered at the bottom of the liquid collecting plate 11 to further remove the liquid phase in the gas-liquid mixture.

[0039] like Figure 2 As shown, a first inlet 6 and a first outlet 7 are also provided on the head 18 of the separator 1. The first inlet 6 and the first outlet 7 are connected to the input end and the output end of the coil 5 respectively. In addition, as shown in FIG. Figure 1 As shown, the number of the first inlet 6 and the first outlet 7 can also be set to two, but they also share one input and one output; it is sufficient to connect the multi-drop pipes of the internal coil 5 with the corresponding first inlet 6 and first outlet 7, and the coils 5 are still in parallel.

[0040] A first cleaning system is arranged outside the first inlet 6 and the first outlet 7, and the first cleaning system includes a first liquid inlet pipe 22, a first liquid outlet pipe 23, a first air inlet pipe 24 and a first air outlet pipe 25. The first liquid inlet pipe 22 is connected to the first inlet 6, and the first liquid outlet pipe 23 is connected to the first outlet 7. Condensed water can be introduced into the first liquid inlet pipe 23, and the condensed water will enter the coil 5 and finally be discharged from the first liquid outlet pipe 23. When the separator 1 performs gas-liquid separation operation, the condensed water introduced into the coil 5 can condense the gas-liquid mixture in the separator 1, thereby improving the condensation effect and the gas-liquid separation effect. The first air inlet pipe 24 is connected to the first outlet 7, and the first air outlet pipe 25 is connected to the first inlet 6. Hot steam can be introduced into the first air inlet pipe 24. When the separator 1 needs to be cleaned, cleaning liquid can be introduced into the separator 1, and then the hot steam introduced through the first air inlet pipe 24 increases the temperature of the coil 5, thereby heating the cleaning liquid inside the separator 1, which is beneficial to the removal of dirt inside the separator 1. Manual valves are also separately provided on each pipeline to control the on-off status of each pipeline. Of course, in addition to manual control, automatic control can also be designed.

[0041] The gas phase port 9 at the top of the separator 1 is connected to the gas phase recovery device 26, and is also connected to the first cleaning device 27. When the cleaning operation is required, the valve corresponding to the gas phase recovery device 26 is closed, so that the passage between the gas phase port 9 and the gas phase recovery device 26 is disconnected, and the cleaning liquid is introduced from the gas phase port 9 into the separator 1 to perform the cleaning work. When the gas-liquid separation operation is required, the valve corresponding to the first cleaning device 27 is closed, so that the passage between the gas phase port 9 and the first cleaning device 27 is disconnected, and the gas separated in the separator 1 enters the gas phase recovery device 26 from the gas phase port 9. Similarly, the waste residue collection device 28 and the liquid phase storage tank 29 are connected to the discharge port 21 of the separator 1; after the cleaning operation is completed, the waste residue and wastewater are discharged into the waste residue collection device 28 for treatment, and when the gas-liquid separation operation is performed, the separated liquid phase is collected by the liquid phase storage tank 29.

[0042] like Figure 1As shown, a condenser 12 is also provided on the separator 1, and the condenser 12 can perform the first gas-liquid separation operation on the gas-liquid mixture. Specifically, the condenser 12 is connected to the feed pipe 2 on the separator 1, and the condenser 12 includes a vertical section 15, an inclined section 16 and a guide section. The vertical section 15 of the condenser 12 is arranged in the vertical direction, and the vertical section 15 and the inclined section 16 are integrally connected through the guide section, and the inclined section 16 is connected to the feed pipe 2 away from the guide section. A gas-liquid phase inlet 17 is also provided on the vertical section 15, and the gas-liquid phase inlet 17 is arranged horizontally, and is used to pass the gas-liquid mixture into the condenser 12. The gas-liquid mixture is passed horizontally from the upper side of the condenser 12, and the airflow collides with the inner wall of the condenser 12 and flows downward into the inside of the condenser 12 and flows toward the separator 1.

[0043] A second inlet 13 and a second outlet 14 are also provided on the vertical section 15 of the condenser 12, and a condenser tube (not shown in the figure) is provided inside the vertical section 15. The second inlet 13 and the second outlet 14 are connected to the condenser tube. Similarly, the second inlet 13 and the second outlet 14 are connected to the second cleaning system. The structural layout of the second cleaning system is similar to that of the first cleaning system, which will not be repeated here. When the gas-liquid separation operation is performed in the condenser 12, the second cleaning system can pass condensed water to the condenser tube inside the vertical section 15, and the low-boiling chemical components are converted from the gas phase to the liquid phase, so that the separated liquid flows from the bottom of the condenser 12 into the inclined section 16 under its own weight, and the separated gas phase and the unseparated gas-liquid mixture enter the separator 1 through the inclined section 16 and the feed pipe 2; when the condenser 12 is cleaned, the cleaning liquid is introduced into the condenser 12 accordingly, and hot steam can be introduced into the condenser tube through the second cleaning system to heat the cleaning liquid and improve the cleaning effect. A second cleaning device 30 is provided at the top of the vertical section 15 of the condenser 12 for providing cleaning liquid to the condenser 12 .

[0044] This solution provides a gas-liquid cyclone separator, which performs multiple gas-liquid separations by arranging a gas-liquid condenser 12 above the feed pipe 2 of the separator 1 and arranging a coil assembly 3 in the separator 1, and is provided with a cleaning pipeline and a cleaning channel to clean the condenser 12 and the separator 1 in all directions. It not only solves the problem of poor separation effect of the existing gas-liquid separator for gas-liquid separation, improves the gas-liquid separation efficiency, but also automatically cleans the deposited dirt in the equipment, which is convenient and fast, increases the production cycle, and reduces the production cost of the equipment.

Claims

1. A gas-liquid cyclone separator, characterized in that: The separator comprises a feed pipe, the separator has a conical bottom below the feed pipe, and a plurality of vertically arranged coil assemblies are arranged uniformly in the circumferential direction.

2. A gas-liquid cyclone separator according to claim 1, characterized in that: The feed pipe is arranged tangentially to the outer side wall of the separator, and the angle between the radial direction of the separator at the position of the feed pipe and the feeding direction of the feed pipe is 35° to 55°.

3. The gas-liquid cyclone separator according to claim 1, characterized in that: The coil assembly includes a vertically arranged column and a coil wound around the column. The separator is provided with a first inlet and a first outlet. The first inlet and the first outlet are connected to the coil.

4. A gas-liquid cyclone separator according to claim 3, characterized in that: A gas phase channel is provided at the top of the separator and inside the coil assembly. A gas phase port is also provided at the top of the separator. The gas phase channel is connected to the gas phase port.

5. A gas-liquid cyclone separator according to claim 4, characterized in that: The gas phase channel comprises a special-shaped channel which is larger at the top and smaller at the bottom. A liquid collecting plate is arranged in the special-shaped channel, and the liquid collecting plate is in a cone shape which is smaller at the top and larger at the bottom.

6. A gas-liquid cyclone separator according to any one of claims 1 to 5, characterized in that: It also includes a condenser, which is connected to the feed pipe. The condenser is provided with a second inlet and a second outlet. A condenser tube connected with the second inlet and the second outlet is provided in the condenser.

7. A gas-liquid cyclone separator according to claim 6, characterized in that: The condenser comprises a vertical section, the second inlet and the second outlet are arranged in the vertical section, and the vertical section is provided with a gas-liquid phase inlet arranged transversely.

8. A gas-liquid cyclone separator according to claim 7, characterized in that: The condenser further comprises an inclined section, the inclined section being connected to the feed pipe and the inclined section being arranged obliquely downward relative to the feed pipe.

9. A gas-liquid cyclone separator according to any one of claims 3 to 5, characterized in that: Also included is a first cleaning system in communication with the first inlet and the first outlet.

10. The gas-liquid cyclone separator according to claim 6, characterized in that: Also included is a second cleaning system in communication with the second inlet and the second outlet.

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