Gas-liquid separation device

Abstract

The invention provides a gas-liquid separation device. According to the gas-liquid separation device, a gas-liquid mixture can rotate at a high speed through the vortex guide part, so that the gas-liquid mixture is subjected to primary gas-liquid separation in the gas guide pipe, then the gas-liquid mixture is conveyed to the tank body through the gas guide pipe for further gas-liquid separation, and finally water vapor of the gas-liquid mixture is adsorbed through the dehydration part, so that gas-liquid separation is realized; by separating the gas-liquid mixture for multiple times, hydrogen can be effectively separated from the gas-liquid mixture, and compared with an existing standing mode, the efficiency is higher, and the needed overall space is smaller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation device. BACKGROUND

[0002] A combined heat and power system is a power supply mode for providing electric energy and heat energy through energy cascade utilization, which usually comprises a hydrogen production system, a hydrogen storage system, a fuel cell system, a safety alarm system, an electric control system and the like. The hydrogen production system as an important part of the combined heat and power system usually adopts a pure gravity method for gas-liquid separation, that is, hydrogen is separated from the alkali liquid foam by standing, and only when the standing time is long enough, the alkali liquid foam will break to release hydrogen.

[0003] However, since the existing hydrogen production system needs a long standing time to separate hydrogen and alkali liquid, the existing hydrogen production equipment needs a large accommodation space, and therefore the size of the existing hydrogen production equipment is usually large. In order to apply the hydrogen production system to equipment in a small space, a compact gas-liquid separation device is urgently needed. SUMMARY

[0004] Therefore, the embodiments of the present application provide a gas-liquid separation device to solve the problem that the existing hydrogen production system cannot be applied to equipment in a small space due to its large size.

[0005] To achieve the above object, the embodiments of the present application provide the following technical scheme:

[0006] A gas-liquid separation device comprises a separation assembly and a dehydration member.

[0007] The separation assembly comprises a tank body, a vortex guide member, a gas guide pipe, a reflux pipe and a flow guide pipe.

[0008] The vortex guide member is arranged at the first end of the gas guide pipe, and the vortex guide member is used to make the gas-liquid mixture rotate into the gas guide pipe.

[0009] The second end of the gas guide pipe is in communication with the side wall of the tank body.

[0010] The first end of the flow guide pipe extends into the top of the tank body, and the second end is in communication with the lower end of the dehydration member.

[0011] The upper end of the dehydration member is used to communicate with a gas collection device, and the dehydration member is used to adsorb water vapor in the gas-liquid mixture.

[0012] The upper end of the reflux pipe is in communication with the bottom of the tank body.

[0013] Preferably, the tank body is a cylindrical structure.

[0014] The second end of the gas guide pipe is tangent to the side wall of the tank body.

[0015] Preferably, the second end of the air guide pipe is connected to the tank body higher than the first end of the flow guide pipe.

[0016] Preferably, the vortex guide is a cylindrical structure.

[0017] The vortex guide is provided with a first flow channel axially at one end connected to the air guide pipe, and a plurality of second flow channels radially provided in the vortex guide and communicated with the first flow channel, wherein the first flow channel is closed at an end away from the air guide pipe, and the second flow channels are arranged at a preset angle with the tangent of the first flow channel.

[0018] Preferably, the second flow channels are helical structures.

[0019] Preferably, the dehydration component comprises a connecting cylinder and a wire mesh.

[0020] The lower end of the connecting cylinder is connected to the flow guide pipe, and the upper end is used to communicate with the gas collecting device.

[0021] The wire mesh is arranged in the connecting cylinder.

[0022] Preferably, the dehydration component comprises a connecting cylinder and a plurality of wire meshes.

[0023] The lower end of the connecting cylinder is connected to the flow guide pipe, and the upper end is used to communicate with the gas collecting device.

[0024] The plurality of wire meshes are arranged in the connecting cylinder from top to bottom.

[0025] Preferably, the plurality of wire meshes are arranged in the connecting cylinder from top to bottom at a preset interval.

[0026] Preferably, the wire mesh is a conical structure.

[0027] Preferably, the number of separation assemblies is multiple.

[0028] The plurality of separation assemblies are communicated with the lower end of the dehydration component through the flow guide pipe.

[0029] Based on the above, the gas-liquid separation device provided by the application sets the vortex guide at the first end of the air guide pipe, and then makes the mixture rotate into the air guide pipe through the vortex guide. The second end of the air guide pipe is communicated with the side wall of the tank body. The first end of the flow guide pipe extends into the top of the tank body, and the second end is communicated with the lower end of the dehydration device. The upper end of the dehydration device is communicated with the gas collecting device. The upper end of the reflux pipe is communicated with the bottom of the tank body. Through the above-mentioned gas-liquid separation device, the gas-liquid mixture can be rotated at high speed through the vortex guide, and then the gas-liquid mixture is preliminarily separated in the air guide pipe. Then the gas-liquid mixture is transported to the tank body through the air guide pipe for further gas-liquid separation. Finally, the water vapor of the gas-liquid mixture is adsorbed through the dehydration device to realize gas-liquid separation. Through the above-mentioned multiple separations of the gas-liquid mixture, hydrogen can be effectively separated from the gas-liquid mixture. Compared with the existing static method, the application has higher efficiency and smaller overall space. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings.

[0031] Figure 1 The structure schematic diagram of the gas-liquid separation device provided by the embodiment of the application;

[0032] Figure 2 The connection schematic diagram of the tank body and the air guide pipe provided by the embodiment of the application;

[0033] Figure 3 The sectional view of the vortex guide provided by the embodiment of the application;

[0034] Figure 4 The structure schematic diagram of the screen provided by the embodiment of the application;

[0035] Figure 5 The application schematic diagram of the gas-liquid separation device provided by the embodiment of the application;

[0036] Figure 6 The structure schematic diagram of another gas-liquid separation device provided by the embodiment of the application;

[0037] Figure 7 The top view of another gas-liquid separation device provided by the embodiment of the application.

[0038] The separation assembly 1, the tank body 11, the vortex guide 12, the first flow channel 121, the second flow channel 122, the air guide pipe 13, the backflow pipe 14, the flow guide pipe 15, the dehydration device 2, the connecting cylinder 21, the wire mesh 22, and the screen 23. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0040] In the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover the non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0041] The embodiment of the present application provides a gas-liquid separation device, referring to Figure 1 , and combining Figures 2 to 5 , Figure 1 The structure diagram of the gas-liquid separation device, the gas-liquid separation device comprises a separation assembly 1 and a dehydration device 2.

[0042] The separation assembly 1 comprises a tank body 11, a vortex guide 12, an air guide pipe 13, a backflow pipe 14 and a flow guide pipe 15.

[0043] The vortex guide 12 is arranged at the first end of the air guide pipe 13, and the vortex guide 12 is used for rotating the gas-liquid mixture into the air guide pipe 13.

[0044] The second end of the air guide pipe 13 is in communication with the side wall of the tank body 11.

[0045] The first end of the flow guide pipe 15 extends into the top of the tank body 11, and the second end is in communication with the lower end of the dehydration device 2.

[0046] The upper end of the dehydration device 2 is used for being in communication with a gas collection device, and the dehydration device 2 is used for adsorbing water vapor in the gas-liquid mixture.

[0047] The upper end of the backflow pipe 14 is in communication with the bottom of the tank body 11.

[0048] It should be noted that the gas-liquid mixture of the present application is a mixture of gas and water vapor, but due to the difference in density between water vapor and gas, the mass and kinetic energy of the gas-liquid mixture will be different in high-speed flow. The momentum of the water vapor medium with high density is relatively larger than that of the gas with small density. Therefore, when the gas-liquid mixture rotates at high speed, the gas and water vapor can be separated by centrifugal force, and the water vapor can be gathered, and the water vapor becomes droplets after gathering.

[0049] It should be noted that the lower end of the reflux pipe 14 is usually arranged in the liquid, so that the gas-liquid mixture enters the air guide pipe 13 under the action of pressure through the vortex guide 12.

[0050] For the convenience of understanding, the present application takes the electrolysis of hydrogen in an electrolytic cell as an example. In the electrolytic cell, the liquid gradually becomes water vapor, at this time, the pressure in the electrolytic cell gradually rises. The present application is arranged in the electrolytic cell, and the gas-liquid mixture enters the air guide pipe 13 under the action of gas pressure through the vortex guide 12. Since the flow guide makes the gas-liquid mixture rotate into the air guide pipe 13, and the gas-liquid mixture rotates at high speed in the air guide pipe 13, under the action of centrifugal force, part of the water vapor can be gathered into droplets. The droplets and the gas-liquid mixture enter the tank body 11 along the air guide pipe 13. At the moment when the droplets and the gas-liquid mixture enter the tank body 11, the gas-liquid mixture will rotate again in the tank body 11 under the action of its own inertia, so that part of the water vapor in the gas-liquid mixture is gathered into droplets. The droplets and the original droplets entering the tank body 11 are returned to the electrolytic cell through the reflux pipe 14 under the action of their own gravity. The remaining gas-liquid mixture enters the dehydration device 2 through the flow guide pipe 15 for further dehydration. Finally, the remaining hydrogen gas is discharged through the upper end of the dehydration device 2 and collected by the collecting device. The liquid in the dehydration device 2 enters the electrolytic cell through the flow guide pipe 15, the tank body 11 and the reflux pipe 14.

[0051] It should be noted that the gas-liquid mixture rotates, and the water vapor is gathered into droplets during the process, which can absorb the heat in the hydrogen gas, so the present application can also effectively reduce the temperature of the hydrogen gas.

[0052] The embodiment of the present application sets the vortex guide 12 at the first end of the air guide pipe 13, and then rotates the mixture into the air guide pipe 13 through the vortex guide 12, the second end of the air guide pipe 13 is communicated with the side wall of the tank body 11, the first end of the flow guide pipe 15 extends into the top of the tank body 11, and the second end is communicated with the lower end of the dehydration device 2, the upper end of the dehydration device 2 is communicated with the gas collecting device, and the upper end of the backflow pipe 14 is communicated with the bottom of the tank body 11. Through the above-mentioned gas-liquid separation device, the gas-liquid mixture can be rotated at high speed through the vortex guide 12, and then the gas-liquid mixture is preliminarily separated in the air guide pipe 13, and then the gas-liquid mixture is transported to the tank body 11 through the air guide pipe 13 for further gas-liquid separation, and finally the water vapor of the gas-liquid mixture is adsorbed through the dehydration device 2 to realize gas-liquid separation. Through the above-mentioned multiple separation of the gas-liquid mixture, hydrogen can be effectively separated from the gas-liquid mixture. Compared with the existing static method, the efficiency is higher, and the overall space required is smaller.

[0053] Specifically, the tank body 11 is a cylindrical structure.

[0054] The second end of the air guide pipe 13 is tangent to the side wall of the tank body 11.

[0055] It should be noted that the tank body 11 is set as a cylindrical structure, and the second end of the air guide pipe 13 is tangent to the side wall of the tank body 11, so that the air guide pipe 13 can transport the water vapor mixture into the tank body 11 at an angle. Under the action of inertia, the water vapor mixture rotates along the inner wall of the tank body 11, and under the action of centrifugal force, the water vapor is gathered into droplets, and the gas-liquid mixture enters the dehydration device 2 through the flow guide pipe 15 for dehydration.

[0056] It is worth noting that the tank body 11 can be a cylindrical structure or a multi-prism structure, which can be selected by those skilled in the art according to needs.

[0057] Further, the connection between the second end of the air guide pipe 13 and the tank body 11 is higher than the first end of the flow guide pipe 15.

[0058] It should be noted that the connection between the second end of the air guide pipe 13 and the tank body 11 is higher than the first end of the flow guide pipe 15, so that after the air guide pipe 13 transports the gas-liquid mixture to the tank body 11, the gas-liquid mixture rotates around the first end of the flow guide pipe 15, so that the gas-liquid mixture is separated again in the tank body 11, effectively avoiding the direct entry of the transported gas-liquid mixture into the flow guide pipe 15.

[0059] Specifically, the vortex guide 12 is a cylindrical structure.

[0060] The vortex guide 12 is provided with a first flow channel 121 axially arranged at one end connected with the air guide pipe 13, and a plurality of second flow channels 122 radially arranged with the first flow channel 121.

[0061] It should be noted that the vortex guide 12 is provided in a cylindrical structure, and the first flow channel 121 is axially arranged at one end connected with the air guide pipe 13, and the second flow channel 122 is radially arranged with the first flow channel 121, and the end of the first flow channel 121 away from the air guide pipe 13 is a closed end, and the second flow channel 122 is arranged at a preset angle with the tangent line of the first flow channel 121. Through the vortex guide 12 disclosed above, since the gas-liquid mixture entering the plurality of second flow channels 122 enters the first flow channel 121 at the same angle, the gas-liquid mixture can rotate in the first flow channel 121 and enter the air guide pipe 13 to continue rotating, and the gas-liquid separation is realized by centrifugal force.

[0062] It should be further noted that the vortex guide 12 can be a cylindrical structure or a polygonal structure, which can be selected by those skilled in the art according to requirements.

[0063] Specifically, the second flow channel 122 is a spiral structure.

[0064] It should be noted that the second flow channel 122 is provided in a spiral structure, which can set a longer second flow channel 122 in the same volume of the vortex guide 12, and the longer length can increase the speed of the gas-liquid mixture entering the first flow channel 121, so that the gas-liquid mixture enters the first flow channel 121 at high speed to rotate, thereby realizing high-speed centrifugation, and thereby more liquid can be separated in the air guide pipe 13.

[0065] Specifically, the dehydration device 2 comprises a connecting cylinder 21 and a wire mesh 22.

[0066] The lower end of the connecting cylinder 21 is connected with the flow guide pipe 15, and the upper end is used to communicate with the gas collecting device.

[0067] The wire mesh 22 is arranged in the connecting cylinder 21.

[0068] It should be noted that the wire mesh 22 is arranged in the connecting cylinder 21, and when the gas-liquid mixture passes through the dense wire mesh 22, the water vapor in the gas-liquid mixture can be adsorbed, and the gas passes through the wire mesh 22 and is finally discharged from the upper end of the connecting cylinder 21.

[0069] It should be further noted that the wire mesh 22 of the present application arranged in the connecting cylinder 21 can be arranged layer by layer or irregularly inserted into the connecting cylinder 21, which can be selected by those skilled in the art according to requirements.

[0070] It is worth noting that the mesh aperture of the screen 22 of the present application needs to be selected according to the requirements, which is not specifically limited in the present application.

[0071] Specifically, the dehydration device 2 comprises a connecting cylinder 21 and a plurality of screens 23.

[0072] The lower end of the connecting cylinder 21 is connected with the flow guide pipe 15, and the upper end is used for communicating with the gas collecting device.

[0073] The plurality of screens 23 are sequentially arranged in the connecting cylinder 21 from top to bottom.

[0074] It is to be noted that the plurality of screens 23 are sequentially arranged in the connecting cylinder 21 from top to bottom, and when the gas-liquid mixture passes through the dense screen 23, the water vapor in the gas-liquid mixture can be adsorbed, and the gas passes through the screen 23 and is finally discharged from the upper end of the connecting cylinder 21.

[0075] It is worth noting that the mesh aperture of the screen 23 of the present application needs to be selected according to the requirements, which is not specifically limited in the present application.

[0076] Further, the plurality of screens 23 are sequentially arranged in the connecting cylinder 21 from top to bottom at a predetermined interval.

[0077] It is to be noted that the plurality of screens 23 are sequentially arranged in the connecting cylinder 21 from top to bottom at a predetermined interval, which can effectively improve the adsorption capacity of the plurality of screens 23 for water vapor, thereby ensuring that the final gas has the required purity.

[0078] It is also to be noted that since the content of water vapor in different gas-liquid mixtures is different, the skilled person in the art can set the interval of the plurality of screens 23 according to the requirements.

[0079] Specifically, the screen 23 is a conical structure.

[0080] It is to be noted that the screen 23 is arranged in a conical structure, and during installation, the end with a larger diameter is arranged at the top, so that when the water vapor passes through the screen 23, the water vapor is adsorbed by the screen 23 and gathered into droplets, and the droplets flow along the outer wall of the screen 23 to the bottom of the screen 23 and are finally discharged into the flow guide pipe 15 and the reflux pipe 14 under the action of their own gravity.

[0081] Further, referring to Figure 6 and Figure 7 , the number of separation assemblies 1 is multiple.

[0082] The plurality of separation assemblies 1 are all communicated with the lower end of the dehydration device 2 through the flow guide pipe 15.

[0083] It should be noted that the number of separation assemblies 1 is set to be multiple, and the multiple separation assemblies 1 are all communicated with the lower end of the dewatering element 2 through the flow guide pipes 15, so that the gas-liquid mixture can be simultaneously subjected to gas-liquid separation through the multiple air guide pipes 13 and the tank body 11, and finally subjected to gas-liquid separation through the dewatering element 2, which not only can realize multiple gas-liquid separation, but also can further improve the gas separation efficiency.

[0084] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas-liquid separation device, characterized in that, include: Separation components and dehydration parts; The separation assembly includes a tank, a vortex guide, an air intake pipe, a return pipe, and a guide pipe; The vortex guide is disposed at the first end of the air intake pipe, and the vortex guide is used to cause the gas-liquid mixture to rotate and enter the air intake pipe. The second end of the air intake pipe is connected to the side wall of the tank; The first end of the guide pipe extends from the top of the tank, and the second end is connected to the lower end of the dehydration component; The upper end of the dehydration component is used to communicate with the gas collection device, and the dehydration component is used to adsorb water vapor in the gas-liquid mixture; The upper end of the reflux pipe is connected to the bottom of the tank.

2. The gas-liquid separation device according to claim 1, characterized in that, The tank body has a cylindrical structure; The second end of the air intake pipe is tangent to the side wall of the tank.

3. The gas-liquid separation device according to claim 2, characterized in that, The connection point between the second end of the air intake pipe and the tank body is higher than the first end of the guide pipe.

4. The gas-liquid separation device according to claim 1, characterized in that, The vortex guide component has a cylindrical structure; The vortex guide is axially provided with a first flow channel at one end connected to the air intake pipe, and the vortex guide is radially provided with a plurality of second flow channels communicating with the flow channel. The end of the first flow channel away from the air intake pipe is a closed end, and the tangent of the second flow channel to the first flow channel is set at a preset angle.

5. The gas-liquid separation device according to claim 4, characterized in that, The second flow channel has a spiral structure.

6. The gas-liquid separation device according to claim 1, characterized in that, The dewatering component includes: a connecting cylinder and a wire mesh; The lower end of the connecting cylinder is connected to the guide pipe, and the upper end is used to communicate with the gas collection device; The wire mesh is disposed inside the connecting cylinder.

7. The gas-liquid separation device according to claim 1, characterized in that, The dewatering component includes: a connecting cylinder and multiple screens; The lower end of the connecting cylinder is connected to the guide pipe, and the upper end is used to communicate with the gas collection device; Multiple screens are arranged sequentially from top to bottom inside the connecting cylinder.

8. The gas-liquid separation device according to claim 7, characterized in that, Multiple screens are arranged sequentially from top to bottom at preset intervals inside the connecting cylinder.

9. The gas-liquid separation device according to claim 7, characterized in that, The screen has a conical structure.

10. The gas-liquid separation device according to claim 1, characterized in that, The number of the separation components is multiple; All of the separation components are connected to the lower end of the dehydration component through the guide pipe.

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