Reactor inlet rectifying device of marine denitration equipment

Abstract

The utility model relates to the technical field of rectifying devices, and discloses a reactor inlet rectifying device for marine denitration equipment, which comprises a folding pipe, and a rectifying component is arranged on the outer wall of the folding pipe. According to the reactor inlet rectifying device for the marine denitration equipment, when airflow passes through the rotating sleeve, a part of airflow is blown to the hemispherical guide plate through the inclined exhaust port, the airflow is dispersed by the hemispherical guide plate and flows all around, meanwhile, a part of airflow passes through the through holes, and the airflow passes through the through holes and is divided into a plurality of groups of small airflow, so that dispersion of the airflow is promoted; the other part of the airflow is dispersed to each part of the fairing through rotation of the spiral exhaust port and the rotary sleeve, and then the airflow is guided by the arc-shaped blocks to impact the airflow from the through holes, so that the airflow is further cut, the uniformity of the flow velocity of the airflow at each part is promoted, and the airflow can uniformly pass through the fairing; and the efficiency and the performance of the denitration equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifiers, in particular to an inlet rectifier for a reactor of a marine destocking equipment. Background Art

[0002] In order to meet stricter emission standards, the SCR reactor needs to have a higher denitrification efficiency. The space on a ship is usually limited, and the SCR reactor needs to achieve uniform distribution of the exhaust gas to the catalyst cross section within the limited space. Only when the exhaust gas is in full contact with the catalyst can an efficient denitrification reaction be ensured.

[0003] However, in the marine SCR system, the existence of bends and diameter changes leads to uneven airflow velocity, especially when the airflow goes from a closed tube with a smaller diameter to the abrupt expansion structure at the reactor inlet, the gas velocity distribution on the catalyst cross section will show the characteristics of "high in the center and low around", making it impossible for the exhaust gas to flow evenly in the reactor, resulting in a decrease in denitrification efficiency. In view of this, we propose a reactor inlet rectification device for marine denitrification equipment. Utility Model Content

[0004] The utility model aims to provide a reactor inlet rectifying device for marine destocking equipment to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a rectification device for the inlet of a reactor of a marine destocking equipment, comprising a closing pipe, the outer wall of which is provided with a rectification component, and the rectification component comprises:

[0006] A rotating sleeve, the closing tube is sleeved with the rotating sleeve, an end of the rotating sleeve away from the closing tube is provided with an oblique exhaust port, and a side wall of the rotating sleeve is provided with a spiral exhaust port;

[0007] A hemispherical guide plate, wherein the outer wall of the closing tube is fixedly connected with a connecting rod, the end of the connecting rod away from the closing tube is fixedly connected with the hemispherical guide plate, a through hole is opened on the end surface of the hemispherical guide plate, and the end of the hemispherical guide plate away from the connecting rod is fixedly connected with the straight plate guide plate;

[0008] An oblique plate, the outer wall of the closed tube is fixedly connected with a fairing, the inner wall of the fairing is fixedly connected with an oblique plate, and a vent is opened on the side wall of the oblique plate;

[0009] An arc-shaped block is fixedly connected to the inner wall of the fairing.

[0010] Preferably, a corrugated strip is fixedly connected to the arc-shaped edge of the arc-shaped block.

[0011] Preferably, the end surface of the straight plate guide plate is provided with a through hole, and the airflow is divided into a plurality of small airflows passing through the through hole, thereby promoting the dispersion of the airflow and avoiding the airflow gathering in the center.

[0012] Preferably, the arc blocks are arranged in a number of groups, and the arc blocks in the groups are arranged at equal intervals on the inner wall of the fairing.

[0013] Preferably, the arc blocks and the vents are staggered, and after the airflow passes through the vents, it is guided by the arc blocks and collides with the airflow from the through holes, further cutting the airflow and promoting the uniformity of the airflow velocity in each part.

[0014] Preferably, the axis of the hemispherical guide plate coincides with the axis of the rotating sleeve and the closing tube, and the airflow is blown toward the hemispherical guide plate, and the airflow is dispersed by the hemispherical guide plate to flow around, while part of the airflow passes through the through hole.

[0015] Compared with the prior art, the utility model provides a ship-used destocking equipment reactor inlet rectifying device, which has the following beneficial effects:

[0016] 1. The reactor inlet fairing device of the marine destocking equipment has a rotating sleeve, a hemispherical guide plate, an oblique plate and an arc block. When the airflow passes through the rotating sleeve, a part of the airflow is blown to the hemispherical guide plate through the oblique exhaust port, and the airflow is dispersed by the hemispherical guide plate and flows to the surroundings. At the same time, part of the airflow passes through the through hole, and the airflow is divided into several groups of small airflows through the through hole, thereby promoting the dispersion of the airflow and avoiding the airflow gathering in the center. Another part of the airflow passes through the spiral exhaust port, and the rotating sleeve rotates to disperse the airflow to various parts of the fairing, and then impacts the airflow from the through hole through the guidance of the arc block, further cutting the airflow, promoting the uniformity of the airflow velocity in each part, so that the airflow can pass through the fairing evenly, thereby improving the efficiency and performance of the destocking equipment.

[0017] 2. The inlet rectifier of the reactor of the marine destocking equipment has corrugated strips, which make the airflow flow along the corrugated strips when passing through the arc edge of the arc block, thereby causing more disturbances, further uniformizing the speed and distribution of the airflow, reducing the gathering phenomenon in the center of the airflow, and promoting better mixing and dispersion of the airflow inside the fairing, avoiding uneven accumulation of the airflow, and improving the efficiency and performance of the destocking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the fairing of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fairing of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the closed pipe of the utility model.

[0022] In the figure: 1, closing tube; 2, fairing; 3, rotating sleeve; 4, oblique exhaust port; 5, spiral exhaust port; 6, connecting rod; 7, hemispherical guide plate; 8, through hole; 9, straight plate guide plate; 10, oblique plate; 11, vent; 12, arc block; 13, corrugated strip. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a ship-used destocking equipment reactor inlet rectifying device, comprising a closing pipe 1, the outer wall of the closing pipe 1 is provided with a rectifying assembly, the rectifying assembly comprises a fairing 2, a rotating sleeve 3, an oblique exhaust port 4, a spiral exhaust port 5, a connecting rod 6, a hemispherical guide plate 7, a through hole 8, a straight plate guide plate 9, an oblique plate 10, a vent 11, an arc block 12, and a corrugated strip 13.

[0024] In one embodiment of the utility model, the closing tube 1 is sleeved with the rotating sleeve 3, the end of the rotating sleeve 3 away from the closing tube 1 is provided with an oblique exhaust port 4, the side wall of the rotating sleeve 3 is provided with a spiral exhaust port 5, the outer wall of the closing tube 1 is fixedly connected with a connecting rod 6, the end of the connecting rod 6 away from the closing tube 1 is fixedly connected to the hemispherical guide plate 7, the end surface of the hemispherical guide plate 7 is provided with a through hole 8, the end of the hemispherical guide plate 7 away from the connecting rod 6 is fixedly connected to the straight plate guide plate 9, the axis of the hemispherical guide plate 7 coincides with the axis of the rotating sleeve 3 and the closing tube 1, the airflow blows to the hemispherical guide plate 7, the airflow is dispersed by the hemispherical guide plate 7 to flow around, and at the same time part of the airflow passes through the through hole 8, the end surface of the straight plate guide plate 9 is provided with a through hole 8, and the airflow from the through hole 8 is The hole 8 is divided into several groups of small air flows, thereby promoting the dispersion of the air flow and avoiding the air flow from gathering in the center. The outer wall of the closing tube 1 is fixedly connected to the fairing 2, and the inner wall of the fairing 2 is fixedly connected to the oblique plate 10. The side wall of the oblique plate 10 is provided with an air vent 11. The inner wall of the fairing 2 is fixedly connected to an arc block 12, and the arc edge of the arc block 12 is fixedly connected to a corrugated strip 13. The arc block 12 and the air vent 11 are staggered. After the air flow passes through the air vent 11, it is guided by the arc block 12 and collides with the air flow from the through hole 8, further cutting the air flow and promoting the uniformity of the air flow velocity in each part. The number of arc blocks 12 is set in several groups, and several groups of arc blocks 12 are arranged on the inner wall of the fairing 2 at equal intervals.

[0025] The airflow is blown toward the inside of the fairing 2 through the closing pipe 1. When the airflow passes through the rotating sleeve 3, a part of the airflow is blown toward the hemispherical guide plate 7 through the oblique exhaust port 4. The airflow is dispersed by the hemispherical guide plate 7 and flows to the surroundings. At the same time, part of the airflow passes through the through hole 8. The airflow is divided into several groups of small airflows through the through hole 8, thereby promoting the dispersion of the airflow and avoiding the airflow from gathering in the center. The other part of the airflow passes through the spiral exhaust port 5. Due to the asymmetric setting of the spiral exhaust port 5, the airflow passing through the spiral exhaust port 5 has an impact on the rotating sleeve 3. A force that is not perpendicular to the axis of the rotating sleeve 3 is applied to promote the rotation of the rotating sleeve 3, so as to disperse the airflow to various parts of the fairing 2, so that the airflow discharged from the spiral exhaust port 5 rotates and flows toward the oblique plate 10. The oblique plate 10 disrupts this part of the airflow and blows it toward the arc block 12 through the vent 11. After being guided by the arc block 12, it collides with the airflow from the through hole 8, further cutting the airflow, promoting the uniformity of the airflow velocity in various parts, so that the airflow can pass through the fairing 2 evenly, thereby improving the efficiency and performance of the destocking equipment.

[0026] In addition, the arc-shaped edge of the arc block 12 is fixedly connected with a corrugated strip 13. When the airflow passes through the arc-shaped edge of the arc block 12, the airflow flows along the corrugated strip 13. The airflow is more disturbed when passing through the corrugated strip 13, which further evens out the speed and distribution of the airflow, reduces the gathering phenomenon at the center of the airflow, promotes better mixing and dispersion of the airflow inside the fairing 2, avoids uneven accumulation of the airflow, and improves the efficiency and performance of the out-of-stock equipment.

[0027] In the utility model, when in use, the airflow is blown toward the inside of the fairing 2 through the closing tube 1. When the airflow passes through the rotating sleeve 3, a part of the airflow is blown toward the hemispherical guide plate 7 through the oblique exhaust port 4. The airflow is dispersed by the hemispherical guide plate 7 to flow around. Part of the airflow passes through the through hole 8 and is divided into several groups of small airflows. Another part of the airflow passes through the spiral exhaust port 5 to promote the rotation of the rotating sleeve 3. The oblique plate 10 disrupts this part of the airflow and blows it toward the arc block 12 through the vent 11. Further, when the airflow passes through the arc edge of the arc block 12, the airflow flows along the corrugated strips 13, and more disturbances occur when the airflow passes through the corrugated strips 13.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A ship-use destocking equipment reactor inlet rectifying device, comprising a closing pipe (1), characterized in that: The outer wall of the closed tube (1) is provided with a rectifying assembly, and the rectifying assembly comprises: A rotating sleeve (3), the closing tube (1) and the rotating sleeve (3) are sleeved together, an oblique exhaust port (4) is provided at one end of the rotating sleeve (3) away from the closing tube (1), and a spiral exhaust port (5) is provided on the side wall of the rotating sleeve (3); A hemispherical guide plate (7), wherein the outer wall of the closing tube (1) is fixedly connected with a connecting rod (6), one end of the connecting rod (6) away from the closing tube (1) is fixedly connected to the hemispherical guide plate (7), a through hole (8) is provided on the end surface of the hemispherical guide plate (7), and one end of the hemispherical guide plate (7) away from the connecting rod (6) is fixedly connected to a straight plate guide plate (9); An oblique plate (10), wherein the outer wall of the closed tube (1) is fixedly connected to a fairing (2), the inner wall of the fairing (2) is fixedly connected to the oblique plate (10), and a vent (11) is provided on the side wall of the oblique plate (10); An arc-shaped block (12), the inner wall of the fairing (2) being fixedly connected with the arc-shaped block (12).

2. The inlet rectifying device of the reactor of the marine destocking equipment according to claim 1 is characterized by: The arc-shaped edge of the arc-shaped block (12) is fixedly connected with a corrugated strip (13).

3. The inlet rectifier device for the reactor of a marine destocking equipment according to claim 1, characterized in that: A through hole (8) is provided on the end surface of the straight plate guide plate (9).

4. The inlet rectifier device for the reactor of a marine destocking equipment according to claim 1, characterized in that: The arc-shaped blocks (12) are arranged in a plurality of groups, and the plurality of groups of arc-shaped blocks (12) are arranged at equal intervals on the inner wall of the fairing (2).

5. The inlet rectifier device for the reactor of a marine destocking equipment according to claim 1, characterized in that: The arc-shaped blocks (12) and the vents (11) are distributed in an alternating manner.

6. The inlet rectifier device for the reactor of a marine destocking equipment according to claim 1, characterized in that: The axis of the hemispherical guide plate (7) coincides with the axis of the rotating sleeve (3) and the closing tube (1).

Images