Multi-channel denitration reactor

Abstract

The utility model provides a multi-channel denitration reactor which comprises a plurality of reactor bodies filled with catalysts, a connecting box is fixedly installed at the top ends of the reactor bodies jointly, and a gas inlet pipe used for introducing flue gas is installed at the end, away from the reactor bodies, of the connecting box. A first flow guide mechanism for balancing air pressure is arranged in the connecting box; a second flow guide mechanism is arranged in the reactor main body; by arranging the first flow guide mechanism, flue gas entering the gas inlet pipe can be buffered and guided, so that the flow direction of the flue gas is changed, the flue gas is uniformly dispersed to different areas of the gas inlet pipe, the air pressure before the flue gas enters each reactor main body tends to be balanced preliminarily, and the flue gas can enter each reactor main body in a relatively balanced manner; and by arranging the second flow guide mechanism, the flue gas can generate complex flow states such as rotation and disturbance in the reactor main body, the residence time of the flue gas is prolonged, and the reaction effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a denitration reactor technical field, specifically, relate to a kind of multi-channel denitration reactor. BACKGROUND

[0002] Magnesium alloy also burns high-temperature flue gas, and SCR denitration device needs to be set in coal smoke stage and empty smoke stage, and flue gas temperature is generally between 170-200 DEG C, low-temperature catalytic denitration is suitable, and in low-temperature catalytic denitration process, catalyst plays a key role, it can reduce the activation energy of reaction, so that reaction is efficiently carried out at relatively low temperature, but, the following deficiencies exist when prior art is used:

[0003] The gas pressure of different regions in the inlet pipe is generally different after the flue gas to be treated is introduced into the inlet pipe, and the gas pressure in the multiple reactors will be greatly different after the flue gas is subsequently introduced into the multiple reactors, which is not conducive to denitration treatment of the flue gas.

[0004] Therefore, a multi-channel denitration reactor is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at: for the problem that the gas pressure of different regions in the inlet pipe is generally different after the flue gas to be treated is introduced into the inlet pipe, and the gas pressure in the multiple reactors will be greatly different after the flue gas is subsequently introduced into the multiple reactors, which is not conducive to denitration treatment of the flue gas.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A multi-channel denitration reactor is provided to improve the above problems.

[0008] The application is as follows:

[0009] A multi-channel denitration reactor includes a plurality of reactor bodies containing catalysts, a connection box is fixedly installed at the top end of the plurality of reactor bodies, an inlet pipe for introducing flue gas is installed at the end of the connection box away from the reactor body, and a first flow guide mechanism for balancing gas pressure is arranged inside the connection box.

[0010] The first flow guide mechanism includes a first arc-shaped flow guide plate, a second arc-shaped flow guide plate, a horizontally arranged filter screen plate and a plurality of partition plates.

[0011] As the preferred technical scheme of the present application, the first arc-shaped flow guide plate is installed at the top of the connecting box, the second arc-shaped flow guide plate is installed at the left end of the inside of the connecting box, the filter screen plate is horizontally installed on the inside surface of the connecting box, the partition plate is installed at the bottom of the filter screen plate, and the end of the partition plate away from the filter screen plate is connected with the inside surface of the connecting box.

[0012] As the preferred technical scheme of the present application, the second flow guide mechanism comprises a plurality of built-in flow guide plates installed on the inside surface of the reactor body, the built-in flow guide plates are arranged at equal angles in a circle, and the built-in flow guide plates are arranged in an inclined manner.

[0013] As the preferred technical scheme of the present application, the partition plates are arranged at equal distances in a linear manner, and each partition plate is located directly above the space between two adjacent reactor bodies.

[0014] As the preferred technical scheme of the present application, the second arc-shaped flow guide plate corresponds to one end of the air inlet pipe, and the reactor bodies are arranged at equal distances in a linear manner.

[0015] As the preferred technical scheme of the present application, the end of the air inlet pipe away from the reactor body is opened towards the right side.

[0016] As the preferred technical scheme of the present application, the bottom ends of the reactor bodies are jointly provided with a bottom box, and the top surface of the bottom box is fixedly provided with an air outlet pipe.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] In the scheme of the present application:

[0019] 1. The first flow guide mechanism can buffer and guide the flue gas entering the inside of the air inlet pipe, change the flow direction of the flue gas, uniformly disperse the flue gas to different areas of the air inlet pipe, preliminarily balance the air pressure before entering each reactor body, and make the flue gas enter each reactor body more evenly, so as to facilitate subsequent denitration treatment of the flue gas.

[0020] 2. The second flow guide mechanism can make the flue gas produce complex flow states such as rotation and disturbance in the reactor body, prolong the residence time of the flue gas, and further improve the reaction effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall front view of the structure of the multi-channel denitration reactor.

[0022] Figure 2 It is an enlarged structure diagram of part A. Figure 1

[0023] ​Figure 3 For Figure 1 The enlarged structural schematic view of the middle B part.

[0024] Figure 4 The top view structural schematic view of a gas inlet pipe in a multi-channel denitration reactor provided by the present application.

[0025] Indicated in the figure:

[0026] 1, reactor body; 2, connection box; 3, gas inlet pipe; 4, first arc-shaped flow guide plate; 5, second arc-shaped flow guide plate; 6, filter screen plate; 7, partition plate; 8, built-in flow guide plate; 9, bottom box; 10, exhaust pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0028] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "upper", "lower" and the like are based on the positions or location relationships shown in the drawings, or are the positions or location relationships commonly placed when the product of the present application is used, or are the positions or location relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0029] EMBODIMENT

[0030] As Figures 1-4 shown, the multi-channel denitration reactor proposed in the present embodiment includes a plurality of reactor bodies 1 loaded with catalysts, a connection box 2 fixedly installed at the top ends of the plurality of reactor bodies 1, a gas inlet pipe 3 installed at the end of the connection box 2 away from the reactor bodies 1 for passing in flue gas, and a first flow guide mechanism for balancing gas pressure arranged inside the connection box 2; a second flow guide mechanism is arranged inside the reactor body 1, the first flow guide mechanism includes a first arc-shaped flow guide plate 4, a second arc-shaped flow guide plate 5, a horizontally arranged filter screen plate 6, and a plurality of partition plates 7, the second arc-shaped flow guide plate 5 corresponds to one end of the gas inlet pipe 3, and the plurality of reactor bodies 1 are linearly and equidistantly arranged;

[0031] The first flow guide mechanism is arranged, the flue gas entering the inside of the air inlet pipe 3 is buffered and guided, the flow direction of the flue gas is changed, the flue gas is uniformly dispersed to different areas of the air inlet pipe 3, the air pressure before entering each reactor main body 1 is preliminarily balanced, the flue gas can be more evenly entered into each reactor main body 1, and the flue gas is conveniently subjected to denitration treatment subsequently.

[0032] As shown in Figure 1 and Figure 2 , the first arc-shaped flow guide plate 4 is installed at the top of the connecting box 2, the second arc-shaped flow guide plate 5 is installed at the left end of the inside of the connecting box 2, the filter screen plate 6 is horizontally installed on the inner side surface of the connecting box 2, the partition plate 7 is installed at the bottom of the filter screen plate 6, and the end of the partition plate 7 away from the filter screen plate 6 is connected with the inner side surface of the connecting box 2.

[0033] The first arc-shaped flow guide plate 4 is arranged, the flue gas entering the air inlet pipe 3 is preliminarily guided, the flue gas is more uniformly distributed in the air inlet pipe 3, the flue gas is prevented from being concentrated in some areas of the air inlet pipe 3, the turbulence and vortex phenomena of the airflow are reduced, the airflow is prevented from washing the wall of the air inlet pipe 3, and therefore the service life of the air inlet pipe 3 is prolonged. Meanwhile, the first arc-shaped flow guide plate 4 cooperates with the second arc-shaped flow guide plate 5, the air pressure values of each area in the air inlet pipe 3 gradually tend to be balanced, the mesh holes uniformly distributed on the filter screen plate 6 can play a secondary distribution role on the flue gas, the airflow speed and air pressure at different positions can be finely adjusted due to the throttling effect of the mesh holes, the air pressure can be further made consistent, the flue gas can be more evenly entered into each reactor main body 1, and the subsequent denitration is facilitated.

[0034] As shown in Figure 1 and Figure 3 , the second flow guide mechanism includes a plurality of built-in flow guide plates 8 installed on the inner side surface of the reactor main body 1, the plurality of built-in flow guide plates 8 are arranged at equal angles in a circle, and the built-in flow guide plates 8 are arranged in an inclined manner.

[0035] The plurality of built-in flow guide plates 8 arranged in a circle can make the flue gas produce complex flow states such as rotation and disturbance in the reactor main body 1, promote the denitration reaction to be fully carried out, improve the denitration efficiency, prolong the residence time of the flue gas in the reactor main body 1, and further improve the reaction effect.

[0036] As shown in Figure 1 and Figure 2 , the plurality of partition plates 7 are arranged at equal distances in a line, and a single partition plate 7 is located directly above the adjacent two reactor main bodies 1.

[0037] By setting several partition plates 7, the crosstalk of air flow between different channels can be prevented, the air inlet of the reactor body 1 is relatively independent, the influence of air pressure fluctuation between each other is reduced, and the stability of air pressure in each reactor body 1 is maintained.

[0038] As shown in Figure 1 The opening of the air inlet pipe 3 away from the end of the reactor body 1 is oriented to the right side, which is convenient for connecting the air inlet pipe 3 with the external gas supply equipment subsequently.

[0039] As shown in Figure 1 A plurality of reactor bodies 1 are jointly installed at the bottom end of the bottom box 9, the exhaust pipe 10 is fixedly installed on the upper surface of the bottom box 9, and the flue gas after treatment is discharged from the exhaust pipe 10 through the bottom box 9.

[0040] The above embodiments are only used to illustrate the utility model and are not limited to the technical solutions described in the utility model. Although the utility model has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific embodiments, and any modification or equivalent replacement of the utility model; all technical solutions and improvements without departing from the spirit and scope of the utility model are covered in the scope of the claims of the utility model.

Claims

1. A multi-channel denitration reactor comprising a plurality of reactor bodies (1) loaded with a catalyst, characterized in that, A plurality of said reactor body (1) top end fixed installation has the connecting box (2), the connecting box (2) is away from the one end of reactor body (1) is installed for the gas inlet pipe (3) for entering flue gas, the connecting box (2) inside is provided with for making the first flow guide mechanism of air pressure balance;The reactor body (1) inside is provided with second flow guide mechanism; The first flow guide mechanism includes first arc flow guide plate (4), second arc flow guide plate (5), transversely arranged filter screen plate (6) and a plurality of partition plates (7).

2. A multi-pass denitration reactor according to claim 1, characterized in that, The first arc flow guide plate (4) is installed in the top of the connecting box (2), the second arc flow guide plate (5) is installed in the left end inside the connecting box (2), the filter screen plate (6) is horizontally installed in the inner side surface of the connecting box (2), the partition plate (7) is installed at the bottom of the filter screen plate (6), and the end of the partition plate (7) away from the filter screen plate (6) is connected with the inner side surface of the connecting box (2).

3. The multi-pass denitration reactor according to claim 1, characterized in that, A plurality of said second flow guide mechanism includes a plurality of built-in flow guide plates (8) installed on the inner side surface of the reactor body (1), a plurality of said built-in flow guide plates (8) are arranged at equal angles in a circle, and the built-in flow guide plates (8) are arranged obliquely.

4. The multi-pass denitration reactor according to claim 1, characterized in that, A plurality of said partition plates (7) are linearly and equidistantly arranged, and a single said partition plate (7) is located directly above between two adjacent reactor bodies (1).

5. The multi-pass denitration reactor according to claim 1, characterized in that, The second arc flow guide plate (5) corresponds to one end of the gas inlet pipe (3), and a plurality of reactor bodies (1) are linearly and equidistantly arranged.

6. The multi-pass denitration reactor according to claim 1, characterized in that, The end of the gas inlet pipe (3) away from the reactor body (1) is opened towards the right side.

7. The multi-pass denitration reactor according to claim 1, characterized in that, A plurality of said reactor body (1) bottom end common installation has the bottom box (9), the bottom box (9) upper surface fixed installation has the exhaust pipe (10).

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