Redistributor of reactor and reactor

Abstract

The utility model discloses a redistributor of a reactor, which comprises a bottom plate, the bottom plate is provided with a first circulation structure and a second circulation structure which penetrate through the front and back of the bottom plate, the first circulation structure and the second circulation structure are respectively provided with an inlet end, and the inlet end of the first circulation structure is positioned in front of the inlet end of the second circulation structure. Through the arrangement of the first circulation structure and the second circulation structure on the redistributor, the inlet end of the first circulation structure is located in front of the inlet end of the second circulation structure, so that the inlet end of the first circulation structure is arranged in a liquid phase, the inlet end of the second circulation structure is located outside the liquid phase, and the liquid phase can circulate through the first circulation structure; and the gas phase circulates through the second circulation structure, so that gas feeding, gas-liquid separation, gas phase redistribution and liquid phase redistribution are realized at the same time, and the mass transfer capacity of the gas-liquid parallel flow reactor can be greatly enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to chemical equipment, in particular to a re-distributor of a reactor and the reactor. BACKGROUND

[0002] Gas-liquid co-current reactors such as chlorine photocatalysis and bubble absorption are widely used in the chemical industry. When both gas and liquid phases enter the reactor from the bottom, a conventional distributor can be used to obtain good initial distribution. However, the gas phase will gradually aggregate into gas plug-like fluid in the liquid phase, and even evolve into gas bomb-like and wave-like stratified flow patterns, reducing the specific surface area of gas-liquid contact and significantly deteriorating mass transfer. Therefore, it is necessary to reasonably set a re-distributor. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a re-distributor which can realize gas-liquid separation, gas phase redistribution and liquid phase redistribution, and greatly enhance the mass transfer capacity.

[0004] In order to solve the above technical problems, the present application adopts the following technical scheme: a re-distributor of a reactor, comprising a bottom plate, the bottom plate is provided with a first flow-through structure and a second flow-through structure passing through the front and back of the bottom plate, the first flow-through structure and the second flow-through structure respectively have an inlet end, and the inlet end of the first flow-through structure is located in front of the inlet end of the second flow-through structure.

[0005] Improved, the first flow-through structure comprises a plurality of first flow-through pipes distributed on the bottom plate; and / or, the second flow-through structure comprises a plurality of flow-through holes distributed on the bottom plate.

[0006] Improved, the plurality of first flow-through pipes are uniformly distributed on the bottom plate; and / or, the plurality of flow-through holes are uniformly distributed on the bottom plate; and / or, the plurality of first flow-through pipes and the plurality of flow-through holes are uniformly distributed on the bottom plate; and / or, the plurality of first flow-through pipes and the plurality of flow-through holes are staggered.

[0007] Improved, the plurality of first flow-through pipes are cylindrical pipes, and the plurality of first flow-through pipes are arranged in parallel; and / or, the plurality of flow-through holes are cylindrical holes, and the plurality of flow-through holes are arranged in parallel.

[0008] Improved, the plurality of first flow-through pipes have consistent structures; and / or, the plurality of flow-through holes have consistent structures.

[0009] Improved, the flow-through holes are provided with sintered rods.

[0010] Improved, the first flow-through structure and the second flow-through structure cooperate to make the height of the gas column formed in the process of the bottom plate flowing through the gas not greater than the distance between the inlet end of the first flow-through structure and the bottom plate.

[0011] The present application provides a reactor, comprising a reactor cylinder and a redistributor, wherein the redistributor is arranged at the front of the reactor cylinder.

[0012] Preferably, the redistributor is connected with the reactor cylinder by flange clamping and / or welding; and / or, the redistributor and the reactor cylinder are connected by a support ring and / or fasteners.

[0013] Preferably, the reactor cylinder is provided with a gas inlet, wherein the gas inlet comprises an inner pipe arranged on the reactor cylinder and extending into the interior of the reactor cylinder.

[0014] By means of the above technical solution, the present application has the following advantages: by arranging the first flow structure and the second flow structure on the redistributor, the inlet end of the first flow structure is located in front of the inlet end of the second flow structure, so that the inlet end of the first flow structure is arranged in the liquid phase, while the inlet end of the second flow structure is arranged outside the liquid phase; the liquid phase can flow through the first flow structure, while the gas phase can flow through the second flow structure; at the same time, the gas feeding, gas-liquid separation, gas phase redistribution and liquid phase redistribution can be realized, and the mass transfer capacity of the gas-liquid concurrent reactor can be greatly enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The specific embodiments of the present application will be further described below in combination with the accompanying drawings:

[0016] Figure 1 Fig. 1 is a structural schematic view of a redistributor of a reactor according to the present application;

[0017] Figure 2 Fig. 2 is a structural schematic view of a reactor according to the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the accompanying 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 the other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0019] It should be noted that when an element is referred to as being "fixedly connected" to another element, it can be directly connected to the other element or intervening elements can also be present. In addition, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. In particular, when an element is referred to as being "fixedly connected" to another element, the "fixedly connected" can be a fixed connection, such as a welding, a riveting, or a screwing, or a detachable connection, such as a snap fit, a screwing, or a clamping. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for the purpose of illustration only and do not indicate the only orientation of the device.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0021] The terms "first", "second", etc. in the present application do not represent a specific number and order, but are only used for distinguishing names.

[0022] The present application provides a kind of re-distributor of reactor, as Figure 1 As shown in the figure, it includes bottom plate 1, bottom plate 1 is provided with first flow-through structure and second flow-through structure through bottom plate 1 before and after, the inlet end of first flow-through structure and second flow-through structure has respectively, the inlet end of first flow-through structure is located in front of the inlet end of second flow-through structure, the cooperation of first flow-through structure and second flow-through structure makes the gas column height formed in the process of bottom plate 1 flow-through gas not more than the distance between the inlet end of first flow-through structure and bottom plate 1.

[0023] First flow-through structure includes multiple first flow-through pipes 3 distributed in bottom plate 1, multiple first flow-through pipes 3 are uniformly distributed in bottom plate 1, multiple first flow-through pipes 3 are cylindrical pipes, multiple first flow-through pipes 3 are arranged in parallel, and multiple first flow-through pipes 3 are consistent in structure.It should be noted that multiple first flow-through pipes 3 can also be unevenly distributed;It can also be provided as other modalities of first flow-through pipe 3, for example, square tube;Multiple first flow-through pipes 3 consistent in structure refer to the same shape, size, etc., but multiple first flow-through pipes 3 can also be set as inconsistent in structure, multiple first flow-through pipes 3 can be two first flow-through pipes 3, or three first flow-through pipes 3 or more, and multiple flow-through pipes are sealed and connected with bottom plate 1 by welding or screw thread.

[0024] The second flow structure includes a plurality of flow holes 2 distributed on the bottom plate 1, the plurality of flow holes 2 are uniformly distributed on the bottom plate 1, the plurality of flow holes 2 are cylindrical holes, the plurality of cylindrical holes are arranged in parallel, the plurality of flow holes 2 are consistent in structure, and the flow holes 2 are provided with sintered rods to strengthen gas phase dispersion. It should be noted that the plurality of flow holes 2 can also be unevenly distributed respectively; other forms of flow holes 2 can also be provided, such as square holes, fan-shaped holes; the plurality of flow holes 2 consistent in structure means that the forms, sizes, etc. are the same, but the plurality of flow holes 2 can also be arranged to be inconsistent in structure, and the plurality of flow holes 2 can be two flow holes 2, or three flow holes 2, or more.

[0025] As a further preferred embodiment, the plurality of first flow pipes 3 and the plurality of flow holes 2 are uniformly distributed on the bottom plate 1, and the plurality of first flow pipes 3 and the plurality of flow holes 2 are uniformly and alternately distributed.

[0026] It should be noted that the second flow structure can also include a plurality of second flow pipes, i.e. the flow holes 2 are replaced by the second flow pipes. However, the inlet end of the first flow pipe 3 needs to be located in front of the inlet end of the second flow pipe. When the first flow pipe 3 is a straight pipe and is arranged perpendicular to the bottom plate 1, it can also be understood that the length of the plurality of first flow pipes 3 extending forward from the bottom plate 1 is greater than the length of the plurality of second flow pipes extending forward from the bottom plate 1.

[0027] The application also provides a reactor, as shown in Figure 2 The re-distributor is arranged at the front part of the reactor cylinder body.

[0028] The re-distributor and the reactor cylinder body are connected by flange clamping and / or welding; and / or, the re-distributor and the reactor cylinder body are sealingly connected by a support ring and / or a fastener, as a preferred embodiment, the bottom plate 1 is fully welded with the reactor cylinder body, or the support ring and / or the fastener is fully welded with the reactor cylinder body.

[0029] As an embodiment, the reactor cylinder body includes a cylinder front section 5 and a cylinder rear section 6, and the re-distributor is arranged between the cylinder front section 5 and the cylinder rear section 6, specifically, the bottom plate 1 is arranged between the cylinder front section 5 and the cylinder rear section 6.

[0030] As one of the embodiments, the reactor cylinder body has a gas inlet 4, specifically, the cylinder front section 5 is provided with the gas inlet 4, and the gas inlet 4 is located behind the inlet end of the plurality of first flow pipes 3 in the first flow structure. The gas inlet 4 can be used as a reactor middle section gas feed. The gas inlet includes an inner extension pipe arranged on the reactor cylinder body and extending into the inside of the cylinder body, and pre-distribution is performed through the inner extension pipe to make the reactor rising gas and the gas inlet achieve better mixing.

[0031] The front section 5 of the cylinder is connected to the initial distribution of gas phase and liquid phase, the first flow structure is immersed in the liquid phase, the liquid phase is redistributed through the first flow structure and flows into the rear section 6 of the cylinder, and the gas phase flows into the rear section 6 of the cylinder through the flow holes 2, so that the liquid phase and the gas phase are redistributed. During the process of the gas phase flowing into the rear section 6 of the cylinder from the flow holes 2, due to the resistance of the flow holes 2 to the gas phase, an air column is formed on the inflow side of the bottom plate 1, that is, the air column is located between the bottom plate 1 and the liquid phase. The first flow structure and the second flow structure cooperate to ensure that the height of the air column formed during the process of the bottom plate 1 flowing gas is not greater than the distance between the inlet end of the first flow structure and the bottom plate 1, that is, to ensure that the first flow structure extends into the liquid phase and the flow holes 2 are outside the liquid phase. In this way, the liquid phase and the gas phase can flow into the rear section 6 of the cylinder through different fluid channels, realize gas-liquid separation, gas phase redistribution and liquid phase redistribution, and greatly enhance the mass transfer capacity. The cooperation between the first flow structure and the second flow structure refers to the cooperation of the length of the first flow pipe 3, the number and aperture of the flow holes 2, etc.

[0032] As one of the embodiments, the resistance of the flow holes 2 to the gas phase is 100-3000 Pa, the gas phase forms an air column of 10-500 mm between the bottom plate 1 and the liquid phase, and the length of the first flow pipe 3 in the first flow structure is 50-550 mm.

[0033] In addition to the above preferred embodiments, the present application has other embodiments, and those skilled in the art can make various changes and modifications according to the present application, as long as they do not deviate from the spirit of the present application, which shall belong to the scope defined by the claims attached to the present application.

Claims

1. A reactor redistributor characterized by, The bottom plate is provided with a first flow-through structure and a second flow-through structure, and the first flow-through structure and the second flow-through structure are respectively provided with an inlet end.

2. The re-distributor of claim 1, wherein, The first flow-through structure comprises a plurality of first flow-through pipes distributed on the bottom plate; and / or the second flow-through structure comprises a plurality of flow-through holes distributed on the bottom plate.

3. The re-distributor of claim 2, wherein, The plurality of first flow-through pipes are uniformly distributed on the bottom plate; and / or the plurality of flow-through holes are uniformly distributed on the bottom plate; and / or the plurality of first flow-through pipes and the plurality of flow-through holes are uniformly distributed on the bottom plate; and / or the plurality of first flow-through pipes and the plurality of flow-through holes are staggered.

4. The re-distributor of claim 2, wherein, The plurality of first flow-through pipes are cylindrical pipes, and the plurality of first flow-through pipes are arranged in parallel; and / or the plurality of flow-through holes are cylindrical holes, and the plurality of flow-through holes are arranged in parallel.

5. The re-distributor of claim 2, wherein, The plurality of first flow-through pipes are of the same structure; and / or the plurality of flow-through holes are of the same structure.

6. The re-distributor of claim 2, wherein, The flow-through hole is provided with a sintering rod.

7. The re-distributor according to any one of claims 1 to 6, wherein, The first flow-through structure and the second flow-through structure cooperate to make the height of the gas column formed in the process of making the bottom plate flow through the gas not greater than the distance between the inlet end of the first flow-through structure and the bottom plate.

8. A reactor characterized by, The reactor cylinder and the re-distributor are connected through a flange pair and / or welding; and / or the re-distributor and the reactor cylinder are connected through a support ring and / or a fastener.

9. The reactor of claim 8, wherein, The reactor cylinder is provided with a gas inlet, and the gas inlet comprises an inner extension pipe arranged on the reactor cylinder and extending into the inside of the cylinder.

10. The reactor of claim 8, wherein, ​

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