CN214862423U

CN214862423U - Soot blower for denitration reactor

Info

Publication number: CN214862423U
Application number: CN202120576099.5U
Authority: CN
Inventors: 李二辉; 张伟锋
Original assignee: Shanghai Longmai Machinery Equipment Engineering Co ltd
Current assignee: Shanghai Longmai Machinery Equipment Engineering Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-11-26
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a soot blower for denitration reactor belongs to denitration reactor field. It includes the soot blower body and is used for the container of denitration reaction, but set up the access & exit of shutoff on the container lateral wall, be less than fixed connection catalyst layer on the lateral wall of container access & exit place height in the container, the soot blower body is including the air compressor that is linked together in proper order, the cushion chamber, first body, second body and air nozzle assembly, the one end that is connected with the air nozzle assembly on the second body matches and fixes at container access & exit inner chamber, and the air nozzle assembly stretches into to the container inner chamber through the container access & exit, the air nozzle assembly is the tubular structure, air nozzle assembly lateral wall system has the vibration subassembly, the vibration subassembly contacts with the catalyst layer. The utility model provides a soot blower vibrates subassembly catalyst layer direct contact, the clearance of the attachment on the catalyst layer with higher speed.

Description

Soot blower for denitration reactor

Technical Field

The utility model relates to a soot blower for denitration reactor belongs to denitration reactor technical field.

Background

The inside container inner chamber of denitration reactor commonly used sets up a plurality of catalyst layers from top to bottom usually, the flue gas passes through a plurality of catalyst layers, the utility model discloses the theory of operation of denitration reactor mentioned is SCR flue gas denitration, SCR (selective Catalytic reduction) is selective Catalytic reduction technique, be under certain temperature condition, utilize the Catalytic action of catalyst, promote ammonia and flue gas pollutant nitrogen oxide to take place the reduction reaction, generate nitrogen gas and water, thereby reach the flue gas purification technique of desorption nitrogen oxide effect, but after the container used a period, because the lime-ash that forms in the container, the incrustation scale etc. are attached to, fix, sinter on the catalyst layer surface, cause flue gas denitration effect to drop sharply, therefore must blow the ash to the container at the use period usually, conventional soot blower removes the ash with the form of compressed gas or sound wave usually, however, when the hardness and thickness of the ash are large, the resulting effect is gradually reduced.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the utility model provides a soot blower for denitration reactor, it has solved the problem that current soot blower can not effectively be cleared up to the ash under the denitration reactor catalyst layer part condition.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

a soot blower for denitration reactor, including the soot blower body and be used for the container of denitration reaction, but set up the access & exit of shutoff on the container lateral wall, be less than fixed connection catalyst layer on the lateral wall of container access & exit place height in the container, the soot blower body is including the air compressor, cushion chamber, first body, second body and the air cock subassembly that are linked together in proper order, the one end that is connected with the air cock subassembly on the second body matches and fixes at container access & exit inner chamber, and the air cock subassembly stretches into extremely through the container access & exit container inner chamber, air cock subassembly are the tubular structure, and air cock subassembly lateral wall system has the vibration subassembly, the vibration subassembly contacts with the catalyst layer.

As a preferred example, a first valve is provided on a passage between the buffer chamber and the air compressor, and a second valve is provided on a passage between the buffer chamber and the first pipe body.

As a preferred example, the end portion of the second tube is sleeved on the outer side wall of the first tube, the first tube is of a rigid structure, the second tube is of a flexible structure, and a clamp for fixing the first tube and the second tube is sleeved on the outer side wall of the portion, which is in contact with the first tube, of the end portion of the second tube.

As a preferred example, the outer side wall of the end part of the second pipe body is connected with the inner cavity side wall of the inlet and outlet of the container through threads.

As a preferable example, the middle part of the air nozzle assembly is of a corrugated pipe structure, and the vibration assembly is tied at the corrugated pipe structure.

As a preferable example, a connecting pipe is fixedly connected in the passage between the first pipe body and the air nozzle assembly, an inlet and an outlet at one end of the connecting pipe are located on a side wall of a portion of the first pipe body located outside the inlet and the outlet of the container, an inlet and an outlet at the other end of the connecting pipe are located on a side wall of a portion of the air nozzle assembly located in the inner cavity of the container, a rope is sleeved on an outer side wall of an end portion of the air nozzle assembly far away from the inlet and the outlet of the container, the rope extends out of the container through the connecting pipe portion, and a lantern ring is tied on the rope.

As a preferred example, the outer side of the vibration component is of a spherical structure, and the vibration component is internally provided with a vibration motor.

The utility model has the advantages that: the utility model discloses be provided with the cushion chamber, the cushion chamber can appear the sudden stop operation work and the flue gas backward flow that leads to soot blower body and protect, and the first valve and the second valve that the cushion chamber both sides set up have improved the control of air compressor output for it is more accurate controllable to blow the ash operation, and vibration subassembly and catalyst bed direct contact are convenient for provide extra physics striking when blowing the ash to the great or thick condition of grey hardness, improve the efficiency of cleaning up the ash.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of portion A of FIG. 1;

fig. 3 is a schematic structural view of the inlet and outlet of the container of the present invention.

In the figure: the device comprises an inlet and an outlet 1, a catalyst layer 2, an air compressor 3, a buffer cavity 4, a first pipe body 5, a second pipe body 6, a first valve 7, a second valve 8, a clamp 9, a vibration assembly 10 and a lantern ring 11.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-3, a soot blower for a denitration reactor includes a soot blower body and a container for denitration reaction (i.e. a flue gas denitration reactor), a closable inlet and outlet 1 is provided on a side wall of the container (where the inlet and outlet 1 is only used for the access of a soot blowing assembly and is not used for the flow of flue gas, and the side wall is usually disposed at a position of the side wall of the container), a catalyst layer 2 is fixedly connected to the side wall of the container lower than the height of the inlet and outlet 1 of the container (where the container is vertical, the catalyst layer 2 is sequentially arranged along the height direction of the container, the catalyst layer 2 is generally horizontally arranged, the catalyst layer 2 is mainly in the form of honeycomb, plate, or corrugated, flue gas sequentially passes through each catalyst layer 2), the soot blower body includes an air compressor 3 and a buffer chamber 4 which are sequentially communicated with each other (the buffer chamber 4 is a transition between the air compressor 3 and the container, the buffer cavity 4 is provided with a pressure sensor, the buffer cavity 4 is used for preventing flue gas from flowing back due to the failure of the air compressor 3, overlarge pressure in the container, excessive dust and insufficient power of the air compressor 3, and avoiding the problem of flue gas backflow caused by the fact that the air compressor 3 is directly interfered by the flue gas), the first pipe body 5, the second pipe body 6 and the air nozzle assembly, the diameter of the air nozzle assembly on the second pipe body 6 is smaller than that of the inlet and outlet 1 of the container, the area of the air nozzle assembly tied with the rope of the vibration assembly 10 for binding can still be communicated with the rope to enter the container together, and the vibration assembly 10 bound on the air nozzle assembly can also enter the inner cavity of the container through the inlet and outlet 1 of the container, the entering sequence is that the vibration assembly 10 enters the container before the air nozzle assembly, one end connected with the inner cavity of the inlet and outlet 1 of the container is matched and fixed on the inner cavity of the inlet and outlet 1 of the container (the side wall of the second pipe body 6 is provided with a flange, container access & exit 1 tip also is provided with the flange, when second body 6 goes up and the container is fixed mutually, can also utilize screw nut to carry out further fixed through the flange on the two for when connecting between the two, the leakproofness promotes to some extent), and the air cock subassembly stretches into to the container inner chamber through container access & exit 1, and the air cock subassembly is the tubular structure, and air cock subassembly lateral wall system has vibration subassembly 10, and vibration subassembly 10 contacts with catalyst layer 2.

The ash present in this context is generally a substance deposited on the surface of the catalyst layer 2, including ash, scale, etc. filtered out from flue gas.

Be provided with first valve 7 on the route between buffer chamber 4 and air compressor 3, be provided with second valve 8 on the route between buffer chamber 4 and the first body 5, first valve 7 and second valve 8 here restrict buffer chamber 4 jointly, are provided with pressure sensor on buffer chamber 4 usually, and buffer chamber 4 here is the further flow control when being convenient for export the air, reduces the damage that flue gas backward flow scheduling problem led to the fact air compressor 3 simultaneously.

6 tip covers of second body are established on 5 lateral walls of first body, first body 5 is rigid structure (hard body), second body 6 is flexible structure, the cover is equipped with anchor clamps 9 that are used for fixed first body 5 and second body 6 on the lateral wall of the part that contacts with first body 5 of 6 tip of second body, anchor clamps 9 here are two sheetmetals, two sheetmetals are close to each other, the cladding is lived the region that first body 5 and second body 6 contacted, the edge of two sheetmetals utilizes screw rod and nut to fix, thereby leakproofness when ensureing

first body

5 and 6 intercommunications of second body.

The outer side wall of the end part of the second pipe body 6 is connected with the side wall of the inner cavity of the container inlet and outlet 1 through screw threads, when the second pipe body 6 is of a flexible structure (the inner side wall of the second pipe body 6 can be a rubber layer or a metal corrugated pipe layer, and the outer side wall can be composite cloth), an air nozzle assembly connected with the end part of the second pipe body 6 extends into the container inlet and outlet 1 and moves towards the inner cavity of the container, the end of the second tube 6 can be rotated until the second tube 6 itself becomes twisted before contacting the side wall of the inner cavity of the inlet/outlet 1 of the container, namely, the second pipe body 6 is screwed into a spiral tight state from a natural linear state, when the end part of the second pipe body 6 is screwed to the inlet and outlet 1 of the container, after rotating a certain angle, the second pipe body 6 is restored to be close to a natural linear state from a spiral tightening state, and the flexible structure of the second pipe body 6 is arranged, so that the flexibility of the soot blower during installation is improved.

The middle part of air cock subassembly is bellows structure, and vibration subassembly 10 system is in bellows structure department, and bellows structure makes the restriction of rope relatively stable structural at the bellows, and the rope that is used for connecting vibration subassembly 10 can not slide on the air cock subassembly wantonly, and bellows structure makes the air cock subassembly can carry out the completion of certain degree in addition.

A connecting pipe is fixedly connected in a passage between the first pipe body 5 and the air nozzle assembly, an inlet and an outlet at one end of the connecting pipe are positioned on the side wall of the part of the first pipe body 5, which is positioned outside the inlet and outlet 1 of the container, an inlet and an outlet at the other end of the connecting pipe are positioned on the side wall of the part of the air nozzle assembly, which is positioned in the inner cavity of the container, a rope is sleeved on the outer side wall of the end part, which is far away from the inlet and outlet 1 of the container, of the air nozzle assembly, the rope extends out of the container through the connecting pipe part, and a lantern ring 11 is tied on the rope, it needs to be noted that the gap between the connecting pipe and the rope is relatively small, smoke or dust is not easy to leak, the self pipeline of the air nozzle assembly can be bent by pulling the lantern ring 11, so as to adjust the angle change of the gas output end of the air nozzle assembly, thereby changing the blowing direction of the air nozzle assembly, and performing soot blowing operation on different areas on the catalyst layer 2, when needs make air cock subassembly self pipeline be in rectilinear state, can be through adjusting air compressor 3's output, perhaps adjust first valve 7 or second valve 8, realize the pressure release adjustment of cushion chamber 4, thereby make gaseous velocity of flow and the flow increase that passes through the air cock subassembly, thereby make air cock subassembly (air cock subassembly body be for adopting light material, like plastics or aluminum alloy etc.) by crooked to straight form deformation gradually, become straight gradually along with the air cock subassembly, lantern ring 11 retracts gradually under the traction of rope and is close connecting pipe access & exit 1 on the 6 lateral walls of second body.

Vibration subassembly 10 outside is spherical structure (has seted up the perforation on vibration subassembly 10, a pass for the rope), can carry out certain limit's roll on catalyst layer 2, make vibration subassembly 10 difficult because the arch on surface and the inlay card is on catalyst layer 2 for spherical structure, vibration subassembly 10 embeds vibrating motor (vibration subassembly 10 can be to the stereoplasm grey layer, the incrustation scale etc. carries out certain physics breakage, reduce the degree of difficulty and the time length of blowing the ash, vibration subassembly 10 can contact catalyst layer 2 that the below contacted, and the supplementary air cock subassembly blows catalyst layer 2 to a certain extent.

The working principle is as follows: when the device is used, firstly, the vibration component 10 is tied on the air nozzle component by using a rope (the length of the rope ensures that the vibration component 10 can contact the catalyst layer 2, and when the second pipe body 6 is fixed with the container inlet/outlet 1, the rope on the vibration component 10 allows the vibration component 10 to move on the catalyst within a certain range), the vibration component 10 is plugged into the container through the container inlet/outlet 1, then the air nozzle component is plugged into the container, the second pipe body 6 and the container inlet/outlet 1 are matched and fixed, the second valve 8 and the first valve 7 are always in a closed state before the second pipe body 6 is fixed with the container, the air compressor 3 is opened, the first valve 7 is opened, after the pressure in the buffer cavity 4 is ensured to be detected, the second valve 8 is opened, the debugging of the second valve 8 is carried out, the vibration component 10 is a built-in vibration motor (also can be a micro vibration motor or a small vibration motor), the gas outlet (namely the output end or the output end of the air nozzle assembly) of the soot blower body blows the catalyst layer 2 from above the catalyst layer 2, and the vibration of the vibration assembly 10 is matched to pull the blowing angle of the output end of the air nozzle assembly through the lantern ring 11, so that the efficient soot blowing of the denitration reactor is realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A soot blower for denitration reactor, including the soot blower body and be used for denitration reaction's container, but offer access & exit (1) of shutoff on the container lateral wall, be less than fixed connection catalyst layer (2) on the lateral wall of container access & exit (1) place height in the container, its characterized in that: the soot blower body is including air compressor (3), cushion chamber (4), first body (5), second body (6) and the air cock subassembly that is linked together in proper order, the one end that is connected with the air cock subassembly on second body (6) matches and fixes at container access & exit (1) inner chamber, and the air cock subassembly stretches into extremely through container access & exit (1) the container inner chamber, the air cock subassembly is the tubular structure, and air cock subassembly lateral wall system has vibration subassembly (10), vibration subassembly (10) contact with catalyst layer (2).

2. The sootblower for a denitration reactor as set forth in claim 1, wherein: a first valve (7) is arranged on a passage between the buffer cavity (4) and the air compressor (3), and a second valve (8) is arranged on a passage between the buffer cavity (4) and the first pipe body (5).

3. The sootblower for a denitration reactor as set forth in claim 1, wherein: the end part of the second pipe body (6) is sleeved on the outer side wall of the first pipe body (5), the first pipe body (5) is of a rigid structure, the second pipe body (6) is of a flexible structure, and a clamp (9) used for fixing the first pipe body (5) and the second pipe body (6) is sleeved on the outer side wall of the part, which is contacted with the first pipe body (5), of the end part of the second pipe body (6).

4. The sootblower for a denitration reactor as set forth in claim 3, wherein: the outer side wall of the end part of the second pipe body (6) is connected with the inner cavity side wall of the container access (1) through threads.

5. The sootblower for a denitration reactor as set forth in claim 1, wherein: the middle part of the air nozzle assembly is of a corrugated pipe structure, and the vibration assembly (10) is tied at the corrugated pipe structure.

6. The sootblower for a denitration reactor as set forth in claim 5, wherein: fixedly connected with connecting pipe in the route between first body (5) and the air cock subassembly, the one end access & exit of connecting pipe is located the lateral wall of the part that is located outside container access & exit (1) on first body (5), and the other end access & exit of connecting pipe is located the lateral wall of the part that is located the container inner chamber on the air cock subassembly, and the cover is equipped with the rope on the one end tip lateral wall of keeping away from container access & exit (1) on the air cock subassembly, the rope stretches out outside the container through the connecting pipe part, and is tied on the rope and has lantern ring (11).

7. The sootblower for a denitration reactor as set forth in claim 1, wherein: the outer side of the vibration component (10) is of a spherical structure, and a vibration motor is arranged in the vibration component (10).