CN217139958U

CN217139958U - Reactor with a reactor shell

Info

Publication number: CN217139958U
Application number: CN202221057682.6U
Authority: CN
Inventors: 罗国强
Original assignee: Nantong Yiqiang Mechanical Equipment Co ltd
Current assignee: Nantong Yiqiang Mechanical Equipment Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-09
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a reactor, reactor are horizontal reactor, and the reactor includes coaxial setting and the entrance, SCR section and the export section that communicate each other, be equipped with denitration catalyst section and decarbonization catalyst section in the SCR section, denitration catalyst section sets up in the one side that is close to the entrance, and decarbonization catalyst section sets up in the one side that is close to the export section, the top of SCR section corresponds denitration catalyst section and sets up and blows the grey subassembly. The utility model discloses desulfurization denitration reactor assembly that narrates has that the structure is firm, and it is good to blow the ash effect, can the effectual effect of guaranteeing the denitration decarbonization for foreign matter in the SCR section obtains advantages such as in time clearance.

Description

Reactor with a reactor shell

Technical Field

The utility model relates to a SOx/NOx control technical field, in particular to a reactor for denitration decarbonization.

Background

In a denitration reactor of a denitration system, ammonia escapes and Ammonium Bisulfate (ABS) generated from sulfur trioxide in exhaust gas adheres to the surface of a catalyst layer as the temperature in the reactor decreases, blocks catalyst pores, and if the catalyst surface is covered for a long time, the catalyst may be permanently deactivated due to untimely removal. In order to avoid the blockage of a catalyst layer in the denitration reactor, a soot blowing assembly is usually installed on the denitration reactor.

Install the denitration reactor of blowing the soot subassembly at present and adopt vertical design, the business turn over gas port sets up respectively in denitration reactor's upper and lower both ends, and the catalyst layer level in the denitration reactor sets up, and the sediment that blows when blowing the soot of blowing subassembly, soot particles, ammonium bisulfate etc. probably can roll on the surface of catalyst layer and shift, perhaps directly drop to the catalyst layer of next layer on, can't effectually obtain removing.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a reactor which solves one or more of the above-mentioned problems of the prior art.

The utility model provides a reactor, which is a horizontal reactor and comprises an inlet section, an SCR section and an outlet section which are coaxially arranged and mutually communicated,

the SCR section is internally provided with a denitration catalyst section and a decarburization catalyst section, the denitration catalyst section is arranged on one side close to the inlet section, the decarburization catalyst section is arranged on one side close to the outlet section, and the top of the SCR section is provided with a soot blowing assembly corresponding to the denitration catalyst section.

In some embodiments, an airflow diffuser is provided within the inlet section.

In some embodiments, the inlet section and the outlet section are both provided with a flange and a reinforcing rib, and two end portions of the reinforcing rib are respectively connected with the flange and the shell of the SCR section.

In some embodiments, the sootblowing assembly includes a first sootblowing tube and a second sootblowing tube.

In some embodiments, the first and second soot blowing pipes are symmetrically distributed about a centerline of the SCR segment, and each of the first and second soot blowing pipes includes a main pipe and a branch pipe which are communicated with each other, a plurality of guide pipes which are communicated with the SCR segment are provided at the bottom of each branch pipe, and compressed air in the main pipe enters the SCR segment through the branch pipe and the guide pipes on the branch pipe.

In some embodiments, the first and second soot blowing pipes each include a main pipe and three branch pipes, the main pipe and the three branch pipes are connected to each other, the three branch pipes are arranged in parallel, two denitration catalyst sections and one decarburization catalyst section are arranged in the SCR section, and one denitration catalyst section is arranged between the two branch pipes which are parallel to each other.

In some embodiments, removable seals are provided on the housing of the SCR segment corresponding to the denitration catalyst segment and the decarbonization catalyst segment, respectively.

In some embodiments, a recessed plate and a handle are provided on the seal.

In some embodiments, the plate is a transparent plate.

In some embodiments, the bottom of the SCR segment is provided with a base, and the top of the SCR segment is provided with a plurality of lifting lugs.

The reactor of the utility model has the advantages that:

the structure is stable;

the attachment on the surface of the denitration catalyst section can be effectively and timely removed, and the problem of blockage of the denitration catalyst section is solved;

the condition in the SCR section can be observed in time, and attachments falling from the surface of the denitration catalyst section and accumulated in the SCR section can be cleaned in time;

the denitration catalyst section and the decarburization catalyst section which are out of work can be replaced in time, and the denitration and decarburization effects are guaranteed.

Drawings

FIG. 1 is a schematic diagram of a reactor according to some embodiments of the present invention;

FIG. 2 is a front view of a reactor in some embodiments of the present invention;

fig. 3 is a left side view of a reactor in some embodiments of the invention.

In the figure: 1. flange, 2, inlet section, 3, SCR section, 301, sealing member, 302, plate, 303, handle, 4, base, 5, outlet section, 6, first blowing pipe, 601, first person in charge, 602, first branch pipe, 7, lug, 8, second blowing pipe, 801, second person in charge, 802, second branch pipe, 9, air diffuser, 10, strengthening rib.

Detailed Description

In conjunction with the description of fig. 1 to 3, the present invention discloses a reactor, which is a horizontal reactor, and comprises an inlet section 2, an SCR section 3 and an outlet section 5 which are coaxially arranged from left to right and are communicated with each other,

an airflow diffuser 9 is arranged in the inlet section 2, so that the dispersed flue gas can conveniently enter the SCR section 3, and a foundation is established for improving the denitration and desulfurization effects in the later period;

set gradually two-layer denitration catalyst section and one deck decarbonization catalyst section from a left side to the right side in the SCR section 3, denitration catalyst section sets up in the one side that is close to inlet section 2, decarbonization catalyst section sets up in the one side that is close to outlet section 5, the top of SCR section 3 corresponds denitration catalyst section and sets up the soot blowing subassembly, be convenient for blow down the attachment on denitration catalyst section surface to SCR section 3 bottom through setting up of soot blowing subassembly, the attachment of avoiding blowing down still is attached to this denitration catalyst section surface or other denitration catalyst section surfaces.

The flanges 1 are arranged on the flue gas inlet A of the inlet section 2 and the flue gas outlet B of the outlet section 5, and the inlet section 2 and the outlet section 5 are respectively connected with a flue gas leading-in device and a flue gas leading-out device through the arrangement of the flanges 1;

all be equipped with strengthening rib 10 on inlet section 2 and the export section 5, the both ends of strengthening rib 10 on the inlet section 2 respectively with flange 1 on the inlet section 2, the casing of one side of being connected with inlet section 2 is connected on the SCR section 3, the both ends of strengthening rib 10 on the export section 5 respectively with the flange 1 on the export section 5, the casing of one side of being connected with export section 5 on the SCR section 3 is connected, promote inlet section 2 and export section 5's stability through strengthening rib 10, guarantee inlet section 2 and export section 5's life.

The soot blowing component comprises a first soot blowing pipe 6 and a second soot blowing pipe 8 which are symmetrically distributed about the center line of the SCR section 3, the first soot blowing pipe 6 is arranged at the front end part of the top plate of the SCR section 3, the second soot blowing pipe 8 is arranged at the rear end part of the top plate of the SCR section 3, and the soot blowing effect of compressed air can be obtained at the front end part and the rear end part of the denitration catalyst section.

The first soot blowing pipe 6 includes one first main pipe 601 and three first branch pipes 602 which communicate with each other; the second lance tube 8 comprises a second main tube 801 and three second branch tubes 802 which are communicated with each other; the bottoms of the first branch pipe 602 and the second branch pipe 802 are respectively provided with a plurality of guide pipes communicated with the SCR section 3, compressed air inlets C on the first main pipe 601 and the second main pipe 801 are connected with a device for providing compressed air to obtain the compressed air, then the compressed air is respectively introduced into the SCR section 3 through the first branch pipe 602, the second branch pipe 802 and the guide pipes connected with the first branch pipe 602 and the second branch pipe 802 to act on the denitration catalyst section, and the compressed air is introduced at multiple points, so that attachments on the denitration catalyst section can be well loosened and dropped from the denitration catalyst section, the catalytic effect can be better utilized, and the service cycle is longer; the discharge cost is saved; achieving the higher-efficiency discharge standard. Wherein a plurality of guiding tubes generally evenly set up in the branch pipe bottom, and three first branch pipe 602 is parallel to each other, and three second branch pipe 802 is parallel to each other, and the both sides of one deck denitration catalyst section set up a branch pipe combination respectively, and including a first branch pipe 602 and a second branch pipe 802 on the collinear in every branch pipe combination for the left and right sides face homoenergetic enough effectual compressed air effect of denitration catalyst section.

In some specific implementation manners, the casing of the SCR segment 3 is respectively provided with a denitration catalyst segment and a decarburization catalyst segment which are connected through bolts 301, so that the sealing member 301 can be conveniently detached, foreign matters at the bottom of the SCR segment 3 can be conveniently and timely treated, the invalid denitration catalyst segment and the invalid decarburization catalyst segment can be timely replaced, and the denitration and decarburization effects can be guaranteed. Wherein, the sealing element 301 is provided with a concave plate 302 and a handle 303, and the handle 303 is convenient for better operating the dismounting and mounting of the sealing element 301. The plate 302 may be a transparent plate (this is not required; the catalyst is sealed; the interior cannot be seen), such as: toughened glass and the like, which is convenient for observing the conditions in the SCR segment 3 in time.

The bottom of the SCR section 3 is provided with a base 4, which is convenient for the stable horizontal placement of the reactor.

The top of the SCR section 3 is provided with a plurality of lifting lugs 7, so that the mobile reactor can be conveniently lifted. The plurality of lifting lugs 7 are uniformly distributed by taking the center point of the reactor as the center.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, similar modifications and improvements can be made without departing from the inventive concept, and these should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a reactor, its characterized in that, the reactor is horizontal reactor, and the reactor is including coaxial setting and inlet section (2), SCR section (3) and export section (5) that communicate each other, be equipped with denitration catalyst section and decarbonization catalyst section in SCR section (3), denitration catalyst section sets up in the one side that is close to inlet section (2), decarbonization catalyst section sets up in the one side that is close to export section (5), the top of SCR section (3) corresponds denitration catalyst section and sets up and blows the grey subassembly.

2. Reactor according to claim 1, characterized in that a gas flow diffuser (9) is provided in the inlet section (2).

3. Reactor according to claim 1 or 2, characterized in that the inlet section (2) and the outlet section (5) are provided with a flange (1) and a reinforcement rib (10), and the two ends of the reinforcement rib (10) are respectively connected with the flange (1) and the housing of the SCR segment (3).

4. The reactor of claim 1, wherein the sootblowing assembly comprises a first sootblowing tube (6) and a second sootblowing tube (8).

5. The reactor according to claim 4, characterized in that the first lance tube (6) and the second lance tube (8) are symmetrically distributed about the center line of the SCR segment (3) and each comprises a main tube and a branch tube which are communicated with each other, the bottom of each branch tube is provided with a plurality of guide tubes which are communicated with the SCR segment (3), and compressed air in the main tube enters the SCR segment (3) through the branch tube and the guide tubes on the branch tube.

6. The reactor according to claim 5, wherein the first lance tube (6) and the second lance tube (8) each comprise a main tube and three branch tubes which are communicated with each other, the three branch tubes are arranged in parallel with each other, two layers of denitration catalyst sections and one layer of decarburization catalyst section are arranged in the SCR section (3), and one layer of denitration catalyst section is arranged between the two branch tubes which are parallel with each other.

7. A reactor according to claim 6, characterized in that the housing of the SCR section (3) is provided with removable seals (301) for the denitration catalyst section and the decarbonization catalyst section, respectively.

8. A reactor according to claim 7, characterized in that the seal (301) is provided with a concave plate member (302) and a handle (303).

9. A reactor according to claim 8, characterized in that the plate (302) is a transparent plate.

10. A reactor according to claim 1, characterized in that the bottom of the SCR segment (3) is provided with a base (4) and the top of the SCR segment (3) is provided with a plurality of lifting lugs (7).