CN113101875B - Gas-liquid distributor - Google Patents
Gas-liquid distributor Download PDFInfo
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- CN113101875B CN113101875B CN202010030504.3A CN202010030504A CN113101875B CN 113101875 B CN113101875 B CN 113101875B CN 202010030504 A CN202010030504 A CN 202010030504A CN 113101875 B CN113101875 B CN 113101875B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
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Abstract
The application discloses gas-liquid distributor belongs to the petrochemical field. The gas-liquid distributor includes: the device comprises an outer pipe, a gas phase inlet pipe with an opening at one end, an inner pipe with an opening at one end, one or more liquid phase inlet pipes, a gas phase cyclone and an outlet throat pipe; the first end of the outer pipe is communicated with the open end of the gas phase inlet pipe, the second end of the outer pipe is communicated with one end of the outlet throat pipe, and one or more gas phase inlets are formed in the pipe wall of the gas phase inlet pipe; the inner pipe is arranged in the outer pipe, and the open end of the inner pipe faces the second end of the outer pipe; a first end of the one or more liquid phase inlet tubes communicates with the inner tube and a second end of the one or more liquid phase inlet tubes extends out of the outer tube. The application provides a gas-liquid distributor can evenly spray reactant such as gaseous phase material and liquid phase material after mixing on the catalyst bed, and then can be so that reactant and abundant contact of catalyst to reach the purpose that realizes good reaction effect between reactant and the catalyst.
Description
Technical Field
The application relates to the field of petrochemical industry, in particular to a gas-liquid distributor.
Background
The fixed bed reactor is one of the main reactors in the chemical industry, and is widely applied to the fields of petroleum refining and chemical industry, particularly petroleum hydrofining because of the advantages of simple structure, small back mixing, small mechanical loss of the catalyst and the like. In general, when petroleum is hydrorefined, a reactant obtained by mixing hydrogen, petroleum and the like can be sprayed on a catalyst on a bed layer in a fixed bed reactor to ensure that the reactant and the catalyst are in full contact, so that a good reaction effect is achieved. In order to ensure that reactants after mixing hydrogen, petroleum and the like can be sprayed on a catalyst bed layer more uniformly, a gas-liquid distributor is urgently needed.
Disclosure of Invention
The application provides a gas-liquid distributor, can be with the even spraying of reactant after the mixture on the catalyst bed layer in fixed bed reactor. The technical scheme is as follows:
there is provided a gas-liquid distributor comprising: the device comprises an outer pipe, a gas phase inlet pipe with an opening at one end, an inner pipe with an opening at one end, one or more liquid phase inlet pipes, a gas phase cyclone and an outlet throat pipe;
the first end of the outer pipe is communicated with the open end of the gas-phase inlet pipe, the second end of the outer pipe is communicated with one end of the outlet throat pipe, and one or more gas-phase inlets are formed in the pipe wall of the gas-phase inlet pipe;
the inner pipe is arranged in the outer pipe, the open end of the inner pipe faces the second end of the outer pipe, the gas phase cyclone is arranged in an annular space formed by the inner pipe and the outer pipe, and the gas phase cyclone is used for promoting gas phase substances conveyed along the gas phase inlet pipe to form gas phase cyclone;
the first ends of the one or more liquid phase inlet pipes are communicated with the inner pipe, the second ends of the one or more liquid phase inlet pipes extend out of the outer pipe, the one or more liquid phase inlet pipes are used for conveying liquid phase materials to the inner pipe, and the liquid phase materials can form liquid phase rotational flow in the inner pipe.
Optionally, the rotational direction of the gas phase cyclone is opposite to the rotational direction of the liquid phase cyclone.
Optionally, each liquid phase inlet pipe is arranged tangentially to the inner pipe.
Optionally, the gas-liquid distributor further comprises: and the liquid phase cyclone is arranged on the inner wall of the inner pipe and is positioned between the liquid phase inlet pipe and the opening end of the inner pipe.
Optionally, the outlet throat includes a reducing pipe and an expanding pipe, the end with the larger opening on the reducing pipe is fixedly connected with the second end of the outer pipe, and the end with the smaller opening on the reducing pipe is fixedly connected with the end with the smaller opening on the expanding pipe.
Optionally, the gas phase cyclone comprises: a bearing and a plurality of first gas phase swirl plates;
the bearing suit is in on the outer wall of inner tube, a plurality of first gaseous phase spinning disk are followed the circumferencial direction of bearing sets up on the bearing.
Optionally, the gas phase cyclone comprises: a plurality of second gas phase swirl plates;
one ends of the second gas-phase spinning disks are fixed on the outer wall of the inner tube respectively, and the other ends of the second gas-phase spinning disks are fixed on the inner wall of the outer tube respectively.
Optionally, the gas phase inlet pipe comprises: a pipe body and a cover plate;
the cover plate is fixed at the first end of the pipe body, the second end of the pipe body is communicated with the first end of the outer pipe, and the pipe wall of the pipe body is provided with the one or more gas phase inlets.
Optionally, the cover plate is of a conical structure.
Optionally, the gas-liquid distributor further comprises: a transfer tube;
the first end of the adapter tube is communicated with the open end of the gas phase inlet tube, the second end of the adapter tube extends into the outer tube and is connected with the closed end of the inner tube, and a gas phase passage port is formed in the tube wall of the second end of the adapter tube.
Optionally, the centre lines of the gas phase inlet tube, outer tube, inner tube and outlet throat all coincide.
Optionally, the ratio of the inner diameter of the inner tube to the outer diameter of the outer tube is in the range of 0.2-0.5.
Optionally, the ratio of the inner diameter of each liquid phase inlet pipe to the inner diameter of the inner pipe is in the range of 0.2-0.6.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least can comprise:
in the embodiment of the application, on one hand, gas phase substances can sequentially enter an annular space formed by the inner pipe and the outer pipe through one or more gas phase inlets and an inner cavity of a gas phase inlet pipe, and then form gas phase rotational flow under the action of a gas phase rotational flow device arranged in the annular space. On the other hand, the liquid phase substance can enter the inner pipe through the second end of the one or more liquid phase inlet pipes and the inner cavity of the liquid phase inlet pipe in sequence, and liquid phase rotational flow is formed in the inner pipe. And then, the gas phase substance forming the gas phase rotational flow and the liquid phase substance forming the liquid phase rotational flow can be mixed at the second end of the outer pipe, the mixed gas phase substance and the mixed liquid phase substance are atomized under the action of the outlet throat pipe, and finally, the atomized gas phase substance and the atomized liquid phase substance can be uniformly sprayed on a catalyst bed layer in the fixed bed reactor. That is, the gas-liquid distributor that this application embodiment provided can be with even spraying after reactant such as gaseous phase material and liquid phase material mixes on the catalyst bed, and then can make reactant and catalyst abundant contact to reach the purpose that realizes good reaction effect between reactant and the catalyst.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gas-liquid distributor provided in an embodiment of the present application;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of an exemplary gas-liquid distributor of the present application;
FIG. 3 is a cross-sectional view B-B of an air-liquid distributor according to an embodiment of the present disclosure;
FIG. 4 is a C-C cross-sectional view of an air-liquid distributor according to an embodiment of the present disclosure;
fig. 5 is a D-D sectional view of an air-liquid distributor according to an embodiment of the present disclosure.
Reference numerals are as follows:
1: an outer tube; 2: a gas phase inlet pipe; 3: an inner tube; 4: a liquid phase inlet pipe; 5: a gas phase swirler; 6: an outlet throat; 7: a liquid phase cyclone; 8: a transfer tube;
21: a gas phase inlet; 22: a pipe body; 23: a cover plate;
51: a bearing; 52: a first gas phase swirl plate;
61: reducing the diameter of the pipe; 62: expanding the diameter of the pipe.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
Fig. 1 isbase:Sub>A schematic structural diagram of an air-liquid distributor provided in an embodiment of the present application, and fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of the air-liquid distributor provided in the embodiment of the present application. Referring to fig. 1 and 2, the gas-liquid distributor may include: an outer tube 1, a gas phase inlet tube 2 open at one end, an inner tube 3 open at one end, one or more liquid phase inlet tubes 4, a gas phase cyclone 5 and an outlet throat 6. The first end of the outer pipe 1 is communicated with the open end of the gas phase inlet pipe 2, the second end of the outer pipe 1 is communicated with one end of the outlet throat pipe 6, and one or more gas phase inlets 21 are arranged on the pipe wall of the gas phase inlet pipe 2. An inner tube 3 is arranged inside the outer tube 1, an open end of the inner tube 3 faces a second end of the outer tube 1, a gas cyclone 5 is arranged in an annular space formed by the inner tube 3 and the outer tube 1, and the gas cyclone 5 is used for promoting gas phase substances conveyed along the gas phase inlet tube 2 to form gas phase rotational flow. The first ends of the one or more liquid phase inlet pipes 4 are communicated with the inner pipe 3, the second ends of the one or more liquid phase inlet pipes 4 extend out of the outer pipe 1, the one or more liquid phase inlet pipes 4 are used for conveying liquid phase substances to the inner pipe 3, and the liquid phase substances can form liquid phase rotational flow in the inner pipe 3.
In the embodiment of the present application, on one hand, the gas phase material may sequentially pass through one or more gas phase inlets 21 and the inner cavity of the gas phase inlet pipe 2 into the annular space formed by the inner pipe 3 and the outer pipe 1, and then form a gas phase rotational flow under the action of the gas phase cyclone 5 disposed in the annular space. On the other hand, the liquid phase substance may sequentially pass through the second end of the one or more liquid phase inlet pipes 4 and the inner cavity of the liquid phase inlet pipe 4 into the inner pipe 3, and form a liquid phase rotational flow in the inner pipe 3. Next, the gas phase material forming the gas phase rotational flow and the liquid phase material forming the liquid phase rotational flow may be mixed at the second end of the outer tube 1, and the mixed gas phase material and liquid phase material may be atomized under the action of the outlet throat 6, and finally, the atomized gas phase material and liquid phase material may be uniformly sprayed on the catalyst bed layer in the fixed bed reactor. That is, the gas-liquid distributor that this application embodiment provided can be with even spraying after reactant such as gaseous phase material and liquid phase material mixes on the catalyst bed, and then can make reactant and catalyst abundant contact to reach the purpose that realizes good reaction effect between reactant and the catalyst.
The shape of the gas-phase inlet 21 may be circular or rectangular, and the number of the gas-phase inlets may be 2 or 3, and certainly, the shape of the gas-phase inlet 21 may also be other shapes, and the number of the gas-phase inlets may also be other numbers, which is not specifically limited in this embodiment of the present application. In addition, the number of the liquid phase inlet pipes 4 may be one, and of course, the number of the liquid phase inlet pipes 4 may be other, which is not specifically limited in the embodiments of the present application.
It is to be noted that when the gas-liquid distributor is used in the case of petroleum hydrofining, the above-mentioned liquid-phase substance may be understood as petroleum and the gas-phase substance may be understood as hydrogen. Certainly, based on different application scenarios, the liquid-phase substance and the gas-phase substance may be other liquids and others, and the liquid-phase substance and the gas-phase substance are not specifically limited in the embodiment of the present application.
It should be noted that, in some embodiments, the centerlines of the gas phase inlet pipe 2, the outer pipe 1, the inner pipe 3 and the outlet throat 6 may all coincide, which is more beneficial for the manufacturing of the gas-liquid distributor. Of course, the centerlines of the gas phase inlet pipe 2, the outer pipe 1, the inner pipe 3 and the outlet throat 6 may not coincide, which is not limited in the embodiments of the present application.
It should also be noted that in some embodiments, in order to more uniformly spray reactants such as gas phase material and liquid phase material on the catalyst bed, the ratio of the inner diameter of the inner tube 3 to the outer diameter of the outer tube 1 is in the range of 0.2 to 0.5. The ratio of the inner diameter of each liquid-phase inlet pipe 4 to the inner diameter of the inner pipe 3 is in the range of 0.2 to 0.6. Of course, the ratio of the inner diameter of the inner tube 3 to the outer diameter of the outer tube 1 may be in other ranges depending on different application scenarios. The ratio of the inner diameter of each liquid phase inlet pipe 4 to the inner diameter of the inner pipe 3 may be in other ranges, which is not specifically limited in the embodiments of the present application.
In some embodiments, referring to fig. 1 and 2, the gas phase inlet pipe 2 may comprise: a tube body 22 and a cover plate 23. The cover plate 23 is fixed to a first end of the tube 22, a second end of the tube 22 is communicated with a first end of the outer tube 1, and one or more gas phase inlets 21 are arranged on the wall of the tube 22.
The cover plate 23 may be fixed to the first end of the tube 22 by welding, and certainly, the cover plate 23 may also be fixed to the first end of the tube 22 by other methods.
In addition, in some embodiments, the cover plate 23 may have a conical structure, so that the liquid-phase substance falling on the cover plate 23 can better fall along the cover plate 23, and of course, the cover plate 23 may also have other shapes, for example, the cover plate 23 may also have a circular structure, and only the liquid-phase substance needs to be prevented from entering the inner tube 3, which is not specifically limited in the embodiment of the present application.
Furthermore, it will be understood that, with reference to fig. 1, since the cover plate 23 is used to prevent the liquid phase substance from entering the inner cavity of the tube body 22 through the first end of the tube body 22 and the one or more gas phase inlets 21 provided on the tube body 21, the projection of the cover plate 23 on the plane of the first end of the outer tube 1 should completely cover the projection of the first end of the tube body 22 and the projection of the one or more gas phase inlets 21 on the plane of the first end of the outer tube 1. In other words, the cover plate 23 can completely shield the first end of the tube body 22 and the one or more gas phase inlets 21. In this way, the liquid phase material is prevented from entering the inner cavity of the tube 22 through the first end of the tube 22 and the one or more gas phase inlets 21 provided in the tube 21.
In some embodiments, referring to fig. 1 and 3, the gas phase cyclone 5 may comprise: a bearing 51 and a plurality of first gas swirl plates 52. The bearing 51 is fitted around the outer wall of the inner tube 3, and a plurality of first gas swirl plates 52 are provided on the bearing 51 in the circumferential direction of the bearing 51.
Wherein, the quantity of first gaseous phase spinning disk 52 can be 2, of course, first gaseous phase spinning disk 52 also can be other quantity, and this application embodiment does not do specific restriction to this. In addition, a plurality of first gas phase spinning disks 52 can be arranged on the bearing 51 through welding, of course, a plurality of first gas phase spinning disks 52 can also be arranged on the bearing 51 through other modes, and this embodiment of the present application does not specifically limit this. In addition, the shape of first gaseous phase spinning disk 52 can be fan-shaped or rectangle, and of course, first gaseous phase spinning disk 52 also can other shapes, only need to make gaseous phase material form the gaseous phase whirl can, this application embodiment does not do specific restriction to the shape of first gaseous phase spinning disk 52 yet.
In other embodiments, the gas cyclone 5 may include a plurality of second gas-phase cyclones, one ends of the second gas-phase cyclones are respectively fixed to the outer wall of the inner tube 3, and the other ends of the second gas-phase cyclones are respectively fixed to the inner wall of the outer tube 1.
Wherein, the one end of a plurality of second gaseous phase spinning disk can be fixed respectively on the outer wall of inner tube 3 through the welded mode, of course, also can fix respectively on the outer wall of inner tube 3 through other modes, and this application embodiment does not do specific restriction to this. In addition, the other end of a plurality of second gaseous vortex pieces can be fixed respectively on the inner wall of outer tube 1 through welded mode, certainly, also can be fixed respectively on the inner wall of outer tube 1 through other modes, and this application embodiment does not do specific restriction to this yet.
It will be appreciated that in order to achieve better mixing of the gaseous and liquid phase materials, in some embodiments the rotational direction of the gas phase cyclone is opposite to the rotational direction of the liquid phase cyclone, it will be appreciated that when the rotational direction of the gas phase cyclone is opposite to the rotational direction of the liquid phase cyclone, the liquid phase material will collide with the gaseous phase material at the second end of the outer tube 1, and obviously, when the rotational direction of the gas phase cyclone is opposite to the rotational direction of the liquid phase cyclone, better mixing of the gaseous and liquid phase materials can be achieved.
Wherein, in order to cause the liquid phase material to form a liquid phase rotational flow within the inner tube 3, in some embodiments, referring to fig. 1 and 4, each liquid phase inlet tube 4 is disposed tangentially to the inner tube 3. Thus, after the gas phase material enters the inner tube 3 through the phase inlet tube 4, a liquid phase rotational flow can be formed under the flow guiding effect of the inner tube 3. Of course, the embodiment of the present application shows only one possible way of causing the liquid phase substance to form a liquid phase rotational flow in the inner tube 3, and of course, based on different application scenarios, the liquid phase substance may also be caused to form a liquid phase rotational flow in the inner tube 3 by other ways, for example, in other embodiments, referring to fig. 1, the gas-liquid distributor may further include: and a liquid phase cyclone 7, wherein the liquid phase cyclone 7 is arranged on the inner wall of the inner pipe 3 and is positioned between the liquid phase inlet pipe 4 and the opening end of the inner pipe 3. In this way, the liquid phase material can form a liquid phase rotational flow in the inner tube 3 through the liquid phase cyclone 7, which is not specifically limited in the embodiment of the present application.
It should be noted that the liquid phase cyclone 7 may be disposed on the inner wall of the inner tube 3 through a bearing, and of course, may also be disposed on the inner wall of the inner tube 3 through other manners, only the liquid phase substance may form a liquid phase cyclone in the inner tube 3, and the liquid phase cyclone 7 is not limited in this embodiment of the application. It should be noted that the liquid phase cyclone 7 may have an impeller-type structure, and of course, the liquid phase cyclone 7 may have other structures as long as it can form a liquid phase cyclone in the inner tube 3, and this is not specifically limited in the embodiment of the present application.
The principle of the atomization of the gaseous and liquid phase substances by the outlet throat 6 will be explained in detail below.
In some embodiments, referring to FIG. 1, the outlet throat 6 may comprise a reducing pipe 61 and an expanding pipe 62, wherein the larger opening end of the reducing pipe 61 is fixedly connected to the second end of the outer pipe 1, and the smaller opening end of the reducing pipe 61 is fixedly connected to the smaller opening end of the expanding pipe 62. In this way, after the gas-phase substance and the liquid-phase substance are mixed, when the mixture flows through the reducing pipe 61, the mixture of the gas-phase substance and the liquid-phase substance is rapidly accelerated by the reducing pipe 61, and then when the mixture flows through the expanding pipe 62, the pressure of the mixture of the gas-phase substance and the liquid-phase substance is reduced, the speed is reduced, and rapid atomization, that is, atomization of the gas-phase substance and the liquid-phase substance is achieved.
In other embodiments, the outlet throat 6 may include only the expanding tube 62, and the end of the expanding tube 62 with smaller opening is fixedly connected to the second end of the outer tube 1, so that the gas-phase material and the liquid-phase material mixed uniformly can be directly sprayed on the catalyst bed layer in the fixed bed reactor through the expanding tube 62.
Of course, the two outlet throats 6 are only two possible outlet throats 6 shown in the embodiment of the present application, that is, only the mixed gas-phase substance and liquid-phase substance can be uniformly sprayed on the catalyst bed layer in the fixed bed reactor through the outlet throat 6, and the outlet throat 6 is not specifically limited in the embodiment of the present application.
In some embodiments, referring to fig. 1 and 5, the gas-liquid distributor may further include: a transfer tube 8. The first end of adapter tube 8 communicates with the open end of gaseous phase inlet pipe 2, and the second end of adapter tube 8 stretches into outer tube 1, and is connected with the blind end of inner tube 3, is provided with gaseous phase access hole 81 on the pipe wall of the second end of adapter tube 8. In this way, the gas phase inlet pipe 2 can be connected to the inner pipe 3, and the inner pipe 3 can be made to increase the supporting point, and thus be more robust.
It should be noted that, when the gas-liquid distributor further includes the adapter tube 8, the gas phase substance may sequentially pass through the gas phase inlet 21, the inner cavity of the inner tube 3, the inner cavity of the adapter tube 8, and the gas phase passage opening 81 to enter the annular space formed by the inner tube 3 and the outer tube 1, and then, a gas phase rotational flow may be formed under the action of the gas phase cyclone 5 disposed in the annular space.
In some embodiments, the outer wall of the outer tube 1 may be provided with a mounting platform, so that the gas-liquid distributor can be fixed on the fixed bed reactor through the mounting platform.
Finally, the working principle of the gas-liquid distributor will be described in detail in the examples of the present application, taking the case where the gas-liquid distributor is used in petroleum hydrofining as an example.
First, hydrogen gas may sequentially pass through one or more gas phase inlets 21 and the inner cavity of the gas phase inlet pipe 2 into the annular space formed by the inner pipe 3 and the outer pipe 1, and then a gas phase cyclone is formed by the action of the gas phase cyclone 5 disposed in the annular space. Meanwhile, the oil may sequentially pass through the second end of the one or more liquid phase inlet pipes 4 and the inner cavity of the liquid phase inlet pipe 4 into the inner pipe 3, and form a liquid phase rotational flow in the inner pipe 3. Then, the hydrogen forming the gas phase swirling flow and the petroleum forming the liquid phase swirling flow may be mixed at the second end of the outer tube 1 to form a mixture, which is rapidly accelerated by the diameter-reducing tube 61 while passing through the diameter-reducing tube 61, and then rapidly atomized as the pressure of the mixture is reduced and the velocity thereof is reduced while passing through the diameter-increasing tube 62, and finally, the atomized mixture of hydrogen and petroleum may be uniformly sprayed on the catalyst bed layer in the fixed bed reactor.
In the embodiment of the present application, on one hand, gas phase materials can sequentially enter the annular space formed by the inner pipe 3 and the outer pipe 1 through one or more gas phase inlets 21 and the inner cavity of the gas phase inlet pipe 2, and then form gas phase rotational flow under the action of the gas phase cyclone 5 arranged in the annular space. On the other hand, the liquid phase substance may sequentially pass through the second end of the one or more liquid phase inlet pipes 4 and the inner cavity of the liquid phase inlet pipe 4 into the inner pipe 3, and form a liquid phase rotational flow in the inner pipe 3. Next, the gas phase material forming the gas phase rotational flow and the liquid phase material forming the liquid phase rotational flow may be mixed at the second end of the outer tube 1, and the mixed gas phase material and liquid phase material may be atomized under the action of the outlet throat 6, and finally, the atomized gas phase material and liquid phase material may be uniformly sprayed on the catalyst bed layer in the fixed bed reactor. That is, the gas-liquid distributor that this application embodiment provided can be with even spraying after reactant such as gaseous phase material and liquid phase material mixes on the catalyst, and then can make reactant and catalyst abundant contact to reach the purpose that realizes good reaction effect between reactant and the catalyst.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A gas-liquid distributor, comprising: the device comprises an outer pipe (1), a gas phase inlet pipe (2) with an opening at one end, an inner pipe (3) with an opening at one end, one or more liquid phase inlet pipes (4), a gas phase cyclone (5) and an outlet throat (6);
the first end of the outer pipe (1) is communicated with the open end of the gas phase inlet pipe (2), the second end of the outer pipe (1) is communicated with one end of the outlet throat pipe (6), and one or more gas phase inlets (21) are arranged on the pipe wall of the gas phase inlet pipe (2);
the inner pipe (3) is arranged in the outer pipe (1), the open end of the inner pipe (3) faces the second end of the outer pipe (1), the gas phase cyclone (5) is arranged in an annular space formed by the inner pipe (3) and the outer pipe (1), and the gas phase cyclone (5) is used for promoting the gas phase substances conveyed along the gas phase inlet pipe (2) to form gas phase cyclone;
a first end of the one or more liquid phase inlet pipes (4) is communicated with the inner pipe (3), a second end of the one or more liquid phase inlet pipes (4) extends out of the outer pipe (1), the one or more liquid phase inlet pipes (4) are used for conveying liquid phase materials to the inner pipe (3), and the liquid phase materials can form liquid phase rotational flow in the inner pipe (3);
the gas-liquid distributor further includes: the liquid phase cyclone (7) is arranged on the inner wall of the inner pipe (3), is positioned between the liquid phase inlet pipe (4) and the opening end of the inner pipe (3), and is of an impeller-type structure (7);
the gas-phase inlet pipe (2) comprises: a pipe body (22) and a cover plate (23), wherein the cover plate (23) is fixed at a first end of the pipe body (22), a second end of the pipe body (22) is communicated with the first end of the outer pipe (1), the pipe wall of the pipe body (22) is provided with the one or more gas phase inlets (21), and a projection of the cover plate (23) on a plane where the first end of the outer pipe (1) is located completely covers the first end of the pipe body (22) and a projection of the one or more gas phase inlets (21) on a plane where the first end of the outer pipe (1) is located;
the outlet throat pipe (6) comprises a reducing pipe (61) and an expanding pipe (62), the end with a larger opening on the reducing pipe (61) is fixedly connected with the second end of the outer pipe (1), the end with a smaller opening on the reducing pipe (61) is fixedly connected with the end with a smaller opening on the expanding pipe (62),
after the gas phase material forming the gas phase rotational flow and the liquid phase material forming the liquid phase rotational flow are mixed at the second end of the outer pipe (1), the mixture of the gas phase material and the liquid phase material is accelerated when flowing through the reducing pipe (61), and the mixture is decelerated when flowing through the expanding pipe (62).
2. The gas-liquid distributor according to claim 1, wherein the rotational direction of the gas-phase swirling flow is opposite to the rotational direction of the liquid-phase swirling flow.
3. The gas-liquid distributor according to claim 1 or 2, further comprising: a liquid phase cyclone (7), the liquid phase cyclone (7) is arranged on the inner wall of the inner pipe (3) and is positioned between the liquid phase inlet pipe (4) and the opening end of the inner pipe (3).
4. The gas-liquid distributor according to claim 1, wherein the gas-phase cyclone (5) comprises: a bearing (51) and a plurality of first gas phase swirl plates (52);
the bearing (51) suit is in on the outer wall of inner tube (3), a plurality of first gaseous phase spinning disk (52) are followed the circumferencial direction of bearing (51) sets up on bearing (51).
5. The gas-liquid distributor according to claim 1, wherein the gas-phase cyclone (5) comprises: a plurality of second gas-phase swirl plates;
one ends of the second gas-phase spinning disks are fixed on the outer wall of the inner pipe (3) respectively, and the other ends of the second gas-phase spinning disks are fixed on the inner wall of the outer pipe (1) respectively.
6. Gas-liquid distributor according to claim 1, characterized in that said cover plate (23) is of conical configuration.
7. The gas-liquid distributor of claim 1, further comprising: a transfer tube (8);
the first end of switching pipe (8) with the open end intercommunication of gaseous phase inlet pipe (2), the second end of switching pipe (8) stretches into outer tube (1), and with the blind end of inner tube (3) is connected, be provided with gaseous phase access hole (81) on the pipe wall of the second end of switching pipe (8).
8. The gas-liquid distributor according to claim 1, wherein the gas phase inlet pipe (2), the outer pipe (1), the inner pipe (3) and the outlet throat (6) all have their centre lines coincident.
9. The gas-liquid distributor according to claim 1, characterized in that the ratio of the inner diameter of the inner tube (3) to the outer diameter of the outer tube (1) lies in the range of 0.2-0.5.
10. The gas-liquid distributor according to claim 1, wherein the ratio of the inner diameter of each liquid-phase inlet pipe (4) to the inner diameter of the inner pipe (3) is in the range of 0.2 to 0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010030504.3A CN113101875B (en) | 2020-01-13 | 2020-01-13 | Gas-liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010030504.3A CN113101875B (en) | 2020-01-13 | 2020-01-13 | Gas-liquid distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113101875A CN113101875A (en) | 2021-07-13 |
| CN113101875B true CN113101875B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010030504.3A Active CN113101875B (en) | 2020-01-13 | 2020-01-13 | Gas-liquid distributor |
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| CN113798076A (en) * | 2021-10-18 | 2021-12-17 | 秦皇岛首创思泰意达环保科技有限公司 | Double-fluid nozzle |
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|---|---|---|---|---|
| WO2009046466A1 (en) * | 2007-10-10 | 2009-04-16 | Johann Staudinger | Device for introducing gas into a fluid |
| CN101491794A (en) * | 2009-01-08 | 2009-07-29 | 浙江大学 | High-speed jet gas-liquid mixing-phase ejector |
| CN102210992A (en) * | 2010-04-12 | 2011-10-12 | 陆飞浩 | Rotational flow mixer |
| JP2013081924A (en) * | 2011-10-12 | 2013-05-09 | Jfe Engineering Corp | Spray nozzle and fluid atomizing device using the spray nozzle |
| CN205495549U (en) * | 2015-12-31 | 2016-08-24 | 兰州兰石集团有限公司 | Overflowing type gas -liquid distributor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009046466A1 (en) * | 2007-10-10 | 2009-04-16 | Johann Staudinger | Device for introducing gas into a fluid |
| CN101491794A (en) * | 2009-01-08 | 2009-07-29 | 浙江大学 | High-speed jet gas-liquid mixing-phase ejector |
| CN102210992A (en) * | 2010-04-12 | 2011-10-12 | 陆飞浩 | Rotational flow mixer |
| JP2013081924A (en) * | 2011-10-12 | 2013-05-09 | Jfe Engineering Corp | Spray nozzle and fluid atomizing device using the spray nozzle |
| CN205495549U (en) * | 2015-12-31 | 2016-08-24 | 兰州兰石集团有限公司 | Overflowing type gas -liquid distributor |
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