Supergravity rotating packed bed with annular pipe type gas distributor

Abstract

The utility model discloses a supergravity rotating packed bed with a ring pipe type gas distributor, which comprises a rotating packed bed component, the rotating packed bed component comprises a shell, a gas outlet communicated with the top end of the shell, a liquid inlet communicated with the side surface of the shell, and the ring pipe type gas distributor inserted into the shell; and the ring pipe distribution self-adaptive assembly comprises an annular vent pipe arranged right above the ring pipe type gas distributor, an annular groove formed in the outer surface of the long shaft, and an annular sleeve sleeved with the annular groove. According to the rotary packed bed disclosed by the utility model, when the rotary packed bed assembly is used, gas can be uniformly distributed, turbulence of the gas to liquid is increased, the end effect is reduced, the gas-liquid mass transfer coefficient is improved, meanwhile, the rotary packed bed has the advantage of reducing gas short circuit, and through mutual matching of the annular pipe distribution self-adaptive assemblies, the gas-liquid mass transfer coefficient is improved. And structural linkage of gas input is formed, and the problem of non-uniform gas inlet caused by blockage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid mass transfer, in particular to a supergravity rotating packed bed with a ring-tube type gas distributor. Background Art

[0002] Supergravity technology is a new type of chemical process intensification technology that can greatly improve the efficiency of gas-liquid mass transfer. Its principle is to simulate the supergravity environment through the centrifugal force field generated by the high-speed rotating packing. During the gas-liquid contact reaction, the flow pattern of the fluid is changed. The fluid is sheared into liquid micro-elements through the packing, which increases the contact area between phases, improves fluid mixing, and enhances mass transfer. Compared with traditional plate towers and packed towers, the gas-liquid mass transfer rate of the supergravity rotating packed bed can be increased by 1 to 2 orders of magnitude. At the same time, the supergravity rotating bed has the advantages of small equipment size, low cost, small footprint, and easy installation. In the prior art, according to the search, the supergravity rotating packed bed disclosed in the Chinese patent CN201910615538.6 has a gas inlet only on one side, and the gas may not be evenly distributed at the other end after entering. For this reason, we propose a supergravity rotating packed bed with a ring tube gas distributor. Summary of the invention

[0003] Therefore, the object of the present invention is to provide a supergravity rotating packed bed with a ring tube gas distributor. By setting the rotating packed bed components, the gas can be evenly distributed when in use, while increasing the turbulence of the gas to the liquid, reducing the end effect, and improving the gas-liquid mass transfer coefficient. At the same time, the rotating packed bed of the present invention has the advantage of reducing gas short-circuiting. Through the mutual cooperation of the ring tube distribution adaptive components, a structural linkage of gas input is formed to avoid the problem of uneven air intake due to blockage.

[0004] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0005] A high gravity rotating packed bed with an annular tube type gas distributor, comprising:

[0006] A rotating packed bed assembly, the rotating packed bed assembly comprising a housing, a gas outlet connected to the top of the housing, a liquid inlet connected to the side of the housing, an annular gas distributor inserted into the housing, a liquid outlet connected to the bottom of the housing, a motor arranged below the housing, and a long shaft connected to the output end of the motor;

[0007] An annular tube distribution adaptive component, the annular tube distribution adaptive component comprises an annular air permeable tube arranged directly above the annular tube type gas distributor, an annular groove provided on the outer surface of the long axis, and an annular sleeve arranged in the middle of the annular air permeable tube and sleeved with the annular groove;

[0008] The annular tube distribution adaptive component also includes an annular notch opened on the bottom surface of the annular sleeve, a through hole opened on the inner side wall of the annular notch, a long tube connected to the through hole, a spoiler fixed on the bottom surface of the long tube, an annular air intake frame fitted with the annular notch, a bent pipe connected to the annular tube gas distributor, and an L-shaped tube connecting the annular tube gas distributor with the annular air intake frame.

[0009] As a preferred embodiment of the ultra-gravity rotating packed bed with an annular tube gas distributor described in the present invention, the rotating packed bed assembly further comprises a rotor connected to the top end of the long axis and an outlet opened on the top surface of the annular tube gas distributor.

[0010] As a preferred solution of the ultra-gravity rotating packed bed with an annular tube type gas distributor described in the present invention, a tube clamp is provided on the bottom surface of the annular tube type gas distributor;

[0011] There are a plurality of pipe clamps, and the pipe clamps are distributed at equal intervals.

[0012] As a preferred solution of the supergravity rotating packed bed with an annular tube gas distributor described in the present invention, the annular air inlet frame and the annular groove are fitted together, and the annular sleeve rotates along the annular air inlet frame and the annular groove.

[0013] As a preferred embodiment of the high gravity rotating packed bed with an annular tube type gas distributor of the present invention, it further comprises a jet hole, wherein the jet hole is opened on the outer side wall of the liquid inlet;

[0014] Wherein, the jet hole is located inside the rotor.

[0015] As a preferred solution of the supergravity rotating packed bed with an annular tube gas distributor described in the present invention, there are a plurality of gas outlets, and each gas outlet is distributed at intervals; the end of the annular tube gas distributor is closed by a pipe cap.

[0016] As a preferred embodiment of the ultra-gravity rotating packed bed with an annular tube gas distributor described in the present invention, the motor drives the long shaft to drive the rotor to rotate at high speed, so that the liquid contacts the gas in the rotor in a cross-flow manner to cause mass transfer.

[0017] As a preferred solution of the ultra-gravity rotating packed bed with an annular tube gas distributor described in the present invention, air outlet holes are opened on the surface of the annular air permeable tube, and the annular air inlet frame remains stationary during the rotation of the annular sleeve.

[0018] As a preferred solution of the ultra-gravity rotating packed bed with an annular tube gas distributor described in the present invention, there are a plurality of through holes, and each through hole is connected to a corresponding long tube.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The present invention achieves uniform distribution of gas during use by setting up a rotating packed bed assembly, while increasing the turbulence of gas on liquid, reducing the end effect, and improving the gas-liquid mass transfer coefficient. At the same time, the rotating packed bed of the present invention has the advantage of reducing gas short-circuiting.

[0021] 2. Based on the first beneficial effect, through the mutual cooperation of the ring-tube distribution adaptive components, a structural linkage of gas input is formed. When the air outlet on the surface of the ring-tube gas distributor is blocked, the impact force of the gas is formed at the bend, which directly drives the entire annular air pipe to rotate, so that the annular air pipe rotates to input gas. In this way, even if there is a blockage on the annular air pipe, the problem of uneven air intake due to the blockage will be completely avoided.

[0022] 3. Based on the second beneficial effect, when the gas outlet on the annular gas distributor is blocked and unblocked, the air inlet pressure remains normal. At this time, the annular air pipe has insufficient power source and automatically stops rotating without direct external intervention, thus achieving adaptive use.

[0023] The gas enters from the annular gas distributor and enters the rotor evenly and vertically through the outlet. Driven by the rotor, a part of the gas rotates axially, while the gas flows radially near the outlet, passing through the rotor, increasing the turbulence effect of the gas, and finally discharged through the gas outlet. The liquid enters the rotor from the liquid inlet through the jet hole on the inlet pipe. The motor drives the long shaft to drive the rotor to rotate at high speed, and the liquid is thrown out under the action of centrifugal force. The liquid contacts the gas in the rotor in a cross-flow manner, mass transfer occurs, and finally discharged from the liquid outlet.

[0024] When the air outlet is blocked, the air outlet pressure at the elbow will increase under the premise of unchanged air intake rate. At this time, the high-pressure gas ejected from the elbow hits the spoiler, forming a dynamic change in the structure. At this time, the spoiler directly links the annular air permeable tube to rotate. During the rotation of the annular air permeable tube, the annular sleeve rotates in the annular groove, and the annular air intake frame remains stationary. In this way, the gas in the annular tube type gas distributor is input into the annular air intake frame through the L-shaped tube, and finally the gas enters the annular air permeable tube through the through hole and the long tube for uniform injection.

[0025] When the blockage at the gas outlet is cleared, the pressure returns to normal, the jet pressure at the bend drops, the annular air pipe stops rotating, and the annular gas distributor inputs gas evenly. The rotation and stop of the annular air pipe are linked, without direct external intervention, and can be directly adaptively adjusted, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0027] Figure 1 It is a structural diagram of the present invention;

[0028] Figure 2 This is a structural diagram of the annular tube type gas distributor of the present invention from a first perspective;

[0029] Figure 3 A second perspective structural diagram of the annular tube type gas distributor of the present invention;

[0030] Figure 4 It is a structural diagram of the ring pipe distribution adaptive component of the present invention;

[0031] Figure 5 It is a structural diagram of the annular air intake frame of the present invention;

[0032] Figure 6 It is a cross-sectional view of the present invention.

[0033] In the figure: 11, shell; 12, gas outlet; 13, liquid inlet; 14, annular gas distributor; 15, liquid outlet; 16, motor; 17, long shaft; 18, rotor; 19, pipe clamp; 141, gas outlet; 131, jet hole; 21, annular air pipe; 22, annular groove; 23, annular sleeve; 24, annular notch; 25, through hole; 26, long tube; 27, spoiler; 28, annular air inlet frame; 29, elbow; 210, L-shaped tube. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] The present invention provides a supergravity rotating packed bed with a ring tube type gas distributor. The rotating packed bed components are arranged to evenly distribute the gas when in use, while increasing the turbulence of the gas to the liquid, reducing the terminal effect, and improving the gas-liquid mass transfer coefficient. At the same time, the rotating packed bed of the present invention has the advantage of reducing gas short circuiting. Through the mutual cooperation of the ring tube distribution adaptive components, a structural linkage of gas input is formed, thereby avoiding the problem of uneven air intake due to blockage.

[0039] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The overall structure diagram of an embodiment of a supergravity rotating packed bed with an annular tube gas distributor according to the present invention is shown. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The main structure of this embodiment includes: a rotating filler component and a ring tube distribution adaptive component.

[0040] The rotating packed bed assembly is used for uniform gas entry. Specifically, the rotating packed bed assembly includes a housing 11, a gas outlet 12 connected to the top of the housing 11, a liquid inlet 13 connected to the side of the housing 11, and an annular tube gas distributor 14 inserted into the housing 11; the rotating packed bed assembly also includes a liquid outlet 15 connected to the bottom surface of the housing 11, a motor 16 arranged below the housing 11, and a long shaft 17 connected to the output end of the motor 16; the rotating packed bed assembly also includes a rotor 18 connected to the top of the long shaft 17 and an outlet 141 opened on the top surface of the annular tube gas distributor 14; the bottom surface of the annular tube gas distributor 14 is provided with a pipe clamp 19;

[0041] During specific use, the gas enters from the annular gas distributor 14, and enters the rotor 18 evenly and vertically through the outlet 141. Driven by the rotor 18, a part of the gas rotates axially, and at the same time, the gas flows radially near the outlet 141, passes through the rotor 18, thereby increasing the turbulent effect of the gas, and is finally discharged through the gas outlet 12; the liquid enters the rotor 18 from the liquid inlet 13 through the jet hole 131 on the inlet pipe, and the motor 16 drives the long shaft 17 to drive the rotor 18 to rotate at a high speed, and is thrown out under the action of centrifugal force. The liquid contacts the gas in the rotor 18 in a cross-flow manner, and mass transfer occurs, and finally the liquid is discharged from the liquid outlet 15.

[0042] The ring-tube distribution adaptive component is used to form a structural linkage and adaptive adjustment when blocked to achieve uniform gas input. Specifically, the ring-tube distribution adaptive component includes an annular air-permeable pipe 21 arranged just above the ring-tube gas distributor 14, an annular groove 22 opened on the outer surface of the long axis 17, and an annular sleeve 23 arranged in the middle of the annular air-permeable pipe 21 and sleeved with the annular groove 22;

[0043] The annular tube distribution adaptive component also includes an annular notch 24 provided on the bottom surface of the annular sleeve 23, a through hole 25 provided on the inner side wall of the annular notch 24, a long tube 26 connected to the through hole 25, a spoiler 27 fixed to the bottom surface of the long tube 26, an annular air inlet frame 28 fitted with the annular notch 24, a curved pipe 29 connected to the annular tube gas distributor 14, and an L-shaped pipe 210 connecting the annular tube gas distributor 14 with the annular air inlet frame 28;

[0044] When the air outlet 141 is blocked, under the premise of unchanged air intake rate, the air outlet pressure at the bend 29 will increase, and the high-pressure gas ejected from the bend 29 will hit the spoiler 27, forming a dynamic change in the structure. At this time, the spoiler 27 directly links the annular air-permeable tube 21 to rotate. During the rotation of the annular air-permeable tube 21, the annular sleeve 23 rotates in the annular groove 22, and the annular air intake frame 28 remains stationary, so that the gas in the annular tube type gas distributor 14 is input into the annular air intake frame 28 through the L-shaped tube 210, and finally the gas enters the annular air-permeable tube 21 through the through hole 25 and the long tube 26, and is evenly sprayed;

[0045] When the blockage at the gas outlet 141 is cleared, the pressure returns to normal, the jet pressure at the bend 29 drops, the annular air pipe 21 stops rotating, the annular gas distributor 14 inputs gas evenly, and the rotation and stop of the annular air pipe 21 are linked, without direct external intervention, and can be directly adaptively adjusted, which is more convenient to use.

[0046] Taking the mass transfer of ozone in liquid phase under hypergravity environment as an example, deionized water is used as the research object in the experiment. When the hypergravity factor (β) is 30, the ozone concentration is 30 mg / L, the liquid flow rate is 80 L / h, the gas flow rate is 60 L / h, the pH is 4, and the total liquid volume is 2 L, a rotor with an inner diameter of 300 mm, an outer diameter of 900 mm, and a height of 600 mm and the annular tube type gas distributor of the present invention are used to conduct the mass transfer experiment of ozone in liquid under hypergravity environment. The rotating packed bed with the annular tube type gas distributor can reach a maximum value of 8.32 mg / L in the liquid phase ozone concentration at 300 s, while the rotating packed bed without the annular tube type gas distributor can reach a maximum value of 8.41 mg / L in the liquid phase ozone concentration at 450 s, which can accelerate the ozone dissolution rate, indicating that the rotating packed bed with the annular tube type gas distributor is superior to the ordinary rotating packed bed and has broad prospects in industry.

[0047] Working principle: Gas enters from the annular gas distributor 14, and enters the rotor 18 evenly and vertically through the gas outlet 141. Driven by the rotor 18, a part of the gas makes axial rotation flow, while the gas makes radial flow near the gas outlet 141, passes through the rotor 18, and increases the turbulence effect of the gas, and finally is discharged through the gas outlet 12; liquid enters the rotor 18 from the liquid inlet 13 through the jet hole 131 on the inlet pipe, and the motor 16 drives the long shaft 17 to drive the rotor 18 to rotate at a high speed, and is thrown out under the action of centrifugal force. The liquid contacts with the gas in the rotor 18 in a cross-flow manner, and mass transfer occurs, and finally is discharged from the liquid outlet 15;

[0048] When the air outlet 141 is blocked, under the premise of unchanged air intake rate, the air outlet pressure at the bend 29 will increase, and the high-pressure gas ejected from the bend 29 will hit the spoiler 27, forming a dynamic change in the structure. At this time, the spoiler 27 directly links the annular air-permeable tube 21 to rotate. During the rotation of the annular air-permeable tube 21, the annular sleeve 23 rotates in the annular groove 22, and the annular air intake frame 28 remains stationary, so that the gas in the annular tube type gas distributor 14 is input into the annular air intake frame 28 through the L-shaped tube 210, and finally the gas enters the annular air-permeable tube 21 through the through hole 25 and the long tube 26, and is evenly sprayed;

[0049] When the blockage at the gas outlet 141 is cleared, the pressure returns to normal, the jet pressure at the bend 29 drops, the annular air pipe 21 stops rotating, the annular gas distributor 14 inputs gas evenly, and the rotation and stop of the annular air pipe 21 are linked, without direct external intervention, and can be directly adaptively adjusted, which is more convenient to use.

[0050] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high gravity rotating packed bed with an annular gas distributor, characterized in that: include: A rotating packed bed assembly, the rotating packed bed assembly comprising a housing (11), a gas outlet (12) connected to the top of the housing (11), a liquid inlet (13) connected to the side of the housing (11), an annular gas distributor (14) inserted into the housing (11), a liquid outlet (15) connected to the bottom of the housing (11), a motor (16) arranged below the housing (11), and a long shaft (17) connected to the output end of the motor (16); An annular tube distribution adaptive component, the annular tube distribution adaptive component comprising an annular air permeable tube (21) arranged directly above the annular tube type gas distributor (14), an annular groove (22) provided on the outer surface of the long axis (17), and an annular sleeve (23) arranged in the middle of the annular air permeable tube (21) and sleeved with the annular groove (22); The annular tube distribution adaptive component also includes an annular notch (24) provided on the bottom surface of the annular sleeve (23), a through hole (25) provided on the inner side wall of the annular notch (24), a long tube (26) connected to the through hole (25), a spoiler (27) fixed to the bottom surface of the long tube (26), an annular air intake frame (28) sleeved with the annular notch (24), a bent pipe (29) connected to the annular tube type gas distributor (14), and an L-shaped pipe (210) connecting the annular tube type gas distributor (14) and the annular air intake frame (28).

2. The high gravity rotating packed bed with an annular gas distributor according to claim 1, characterized in that: The rotating packed bed assembly further comprises a rotor (18) connected to the top end of the long shaft (17) and a gas outlet (141) opened on the top surface of the annular tube type gas distributor (14).

3. The high gravity rotating packed bed with an annular gas distributor according to claim 2, characterized in that: The bottom surface of the annular tube type gas distributor (14) is provided with a pipe clamp (19); There are a plurality of pipe clamps (19), and the plurality of pipe clamps (19) are distributed at equal intervals.

4. The high gravity rotating packed bed with an annular gas distributor according to claim 3, characterized in that: The annular air intake frame (28) and the annular groove (22) are fitted together, and the annular sleeve (23) rotates along the annular air intake frame (28) and the annular groove (22).

5. The high gravity rotating packed bed with an annular gas distributor according to claim 4, characterized in that: It also includes a jet hole (131), wherein the jet hole (131) is opened on the outer side wall of the liquid inlet (13); Wherein, the jet hole (131) is located inside the rotor (18).

6. The high gravity rotating packed bed with an annular gas distributor according to claim 5, characterized in that: A plurality of gas outlets (141) are provided, and each gas outlet (141) is distributed at intervals of 30 degrees; the end of the annular tube type gas distributor (14) is closed by a pipe cap.

7. The high gravity rotating packed bed with an annular gas distributor according to claim 6, characterized in that: The motor (16) drives the long shaft (17) to drive the rotor (18) to rotate at a high speed, so that the liquid contacts the gas in the rotor (18) in a cross-flow manner, and mass transfer occurs.

8. The high gravity rotating packed bed with an annular gas distributor according to claim 7, characterized in that: The surface of the annular air-permeable tube (21) is provided with an air outlet hole, and during the rotation of the annular sleeve (23), the annular air inlet frame (28) remains stationary.

9. The high gravity rotating packed bed with an annular gas distributor according to claim 8, characterized in that: A plurality of through holes (25) are provided, and each through hole (25) is connected to a corresponding long tube (26).

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