CN220229218U

CN220229218U - Adjusting device, rake soot blower and denitration reactor

Info

Publication number: CN220229218U
Application number: CN202321922309.7U
Authority: CN
Inventors: 吴红; 白洋; 王硕; 刘启栋; 周申燕; 张星; 张�成
Original assignee: Sinoma Overseas Technology Development Co ltd
Current assignee: Sinoma Overseas Technology Development Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2023-12-22
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to the technical field of soot blower installation, in particular to an adjusting device, a rake soot blower and a denitration reactor, and aims to solve the problem that coaxiality of a central tube and an outer tube of the rake soot blower is reduced due to the influence of internal and external temperature differences in the operation process of the existing denitration reactor, so that friction or clamping is generated when the soot blower is cleaned back and forth along the central tube. For this purpose, the adjusting device of the utility model comprises: a first fixing seat; the second fixing seat; the adjusting assembly is used for controlling the first fixing seat to be close to or far away from the second fixing seat; and the two ends of the elastic piece respectively prop against the first fixing seat and the second fixing seat. After the adjusting device is added, if the unbalance problem is found, the adjusting device can be conveniently adjusted, the level of the rake soot blower is kept, the problems of non-coaxiality and non-level of the central tube and the soot blower outer tube caused by the temperature rise and the like are solved, the rake soot blower is cleaned repeatedly without blocking, and the catalyst is ensured to be clean.

Description

Adjusting device, rake soot blower and denitration reactor

Technical Field

The utility model relates to the technical field of soot blower installation, and particularly provides an adjusting device, a rake soot blower and a denitration reactor.

Background

In the industries of cement production and thermal power generation, a large amount of NOx is generated after fuel is combusted, and the atmosphere is polluted. In the existing domestic flue gas treatment denitration system, the SCR process has high denitration efficiency and is widely applied. In the denitration process, the activity of the catalyst is a key for ensuring the denitration efficiency, and the whole denitration process needs to strictly prevent the catalyst from blocking and prevent the catalyst from poisoning, so that the rake soot blower and the acoustic wave soot blower become key equipment in an SCR denitration process system.

In the heat regulation and actual operation of the denitration reactor, the temperature of the reactor can reach 200 ℃, and the outer truss is at normal temperature. When the temperature in the denitration reactor rises, the temperature difference exists between the wall plate of the reactor and the outer steel truss, and the heated expansion quantity is different, so that the central tube and the outer tube of the rake soot blower are not horizontal, and the rake soot blower is inclined and generates friction or clamping when being cleaned in a reciprocating manner.

Accordingly, there is a need for an adjustable rake sootblower front and rear end cross beams collinear adjustment device.

Disclosure of Invention

The utility model aims to solve the technical problems, namely the problems that the coaxiality of a central tube and an outer tube of a rake soot blower is reduced due to the influence of internal and external temperature differences of the traditional denitration reactor, and friction or clamping is generated when the soot blower is cleaned along the central tube in a reciprocating manner.

In a first aspect, the present utility model provides an adjustment device comprising:

a first fixing seat;

the second fixing seat;

the adjusting assembly is connected between the first fixing seat and the second fixing seat and used for controlling the first fixing seat to be close to or far away from the second fixing seat; and

the elastic piece is connected between the first fixing seat and the second fixing seat, and two ends of the elastic piece respectively prop against the first fixing seat and the second fixing seat.

Under the condition of adopting the technical scheme, the elastic piece can tightly prop the first fixing seat and the second fixing seat, so that the first fixing seat and the second fixing seat can not only adjust the distance, but also play a supporting role.

Preferably, the adjusting assembly comprises:

one end of the guide rod is connected with the second fixing seat, and the other end of the guide rod penetrates through the first fixing seat; and

at least one adjusting nut in threaded connection with the guide rod, wherein the adjusting nut is tightly fixed on the side surface of the first fixing seat far away from the second fixing seat

Under the condition of adopting the technical scheme, the first fixing seat is adjusted through the adjusting nut, so that the distance between the first fixing seat and the second fixing seat can be accurately and rapidly adjusted.

Preferably, the number of the adjusting nuts is the same as the number of the guide rods, and the adjusting nuts are in one-to-one correspondence with the guide rods.

Under the condition of adopting the technical scheme, the guide rods are screw rods, and the position of the first fixing seat is controlled by controlling the position of the adjusting nut on the screw rods, so that the position of the rear end of the cross beam is controlled.

Preferably, the elastic member is a coil spring or a disc spring.

Preferably, the first fixing seat and the second fixing seat are both provided with mounting holes.

Preferably, the mounting holes are uniformly distributed along the circumferential directions of the first fixing seat and the second fixing seat.

Under the condition of adopting the technical scheme, through inserting the bolt in the mounting hole, make first fixing base and second fixing base firmly be connected with crossbeam and truss respectively.

Preferably, the first fixing seat and the second fixing seat are both provided with a plurality of lugs, through holes are formed in the lugs, and the guide rods are slidably connected in the through holes.

Under the condition of adopting the technical scheme, the distance between two adjacent lugs is greater than or equal to the width of the cross beam or the truss, so that the guide rod is prevented from being influenced by the cross beam and the truss, and the adjustment of the adjusting nut on the guide rod is facilitated.

Preferably, the first fixing seat and the second fixing seat are provided with lightening holes.

In a second aspect, the present utility model provides a rake sootblower comprising:

a frame comprising a cross beam and a longitudinal beam;

the adjusting device of any one of the above, wherein the first fixing seat is connected with the rear end of the beam, and the second fixing seat is connected with the truss of the denitration reactor;

the central tube is arranged on the cross beam in a sliding way, and the central tube is used for introducing gas; and

the spray head assembly is arranged at the front end of the central tube and is communicated with the central tube.

In a third aspect, the utility model provides a denitration reactor, which comprises the rake soot blower, and the central tube extends into the denitration reactor.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a regulating device according to the present utility model;

FIG. 2 is a front view of the adjustment device of the present utility model;

FIG. 3 is a bottom view of the adjustment device of the present utility model;

FIG. 4 is a schematic diagram of the installation position relationship of the rake soot blower of the present utility model for a denitration reactor.

The drawings are as follows:

1. a first fixing seat; 2. the second fixing seat; 3. an elastic member; 4. a mounting hole; 5. a guide rod; 6. an adjusting nut; 7. a lug; 8. a lightening hole; 9. truss; 10. a rake soot blower; 101. a cross beam; 1011. the rear end of the beam; 1012. the front end of the beam; 102. a longitudinal beam; 103. a central tube; 104. a spray head assembly; 105. a soot blowing outer tube; 11. a denitration reactor.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. Those skilled in the art can adapt it as desired to suit a particular application.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directional or positional relationships, and are based on the directional or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the ordinal terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides an adjustment device comprising:

the device comprises a first fixed seat 1, a second fixed seat 2, an adjusting component and an elastic piece 3, wherein the adjusting component is connected between the first fixed seat 1 and the second fixed seat 2 and is used for controlling the first fixed seat 1 to be close to or far from the second fixed seat 2; the elastic piece 3 is connected between the first fixing seat 1 and the second fixing seat 2, and two ends of the elastic piece 3 respectively prop against the first fixing seat 1 and the second fixing seat 2. When in use, the first fixing seat 1 and the second fixing seat 2 are adjusted by adjusting the adjusting component.

Further, the adjusting component comprises a plurality of guide rods 5, one ends of the guide rods 5 are connected with the second fixing base 2, and the other ends penetrate through the first fixing base 1. Wherein, threaded connection has adjusting nut 6 on at least one guide bar 5, and the guide bar 5 that connects adjusting nut 6 is the screw rod promptly, and other guide bars 5 are the slide bar, through forward or reverse rotation adjusting nut 6, makes adjusting nut 6 drive first fixing base 1 and reciprocates, realizes the regulation to first fixing base 1 and second fixing base 2 interval.

Further preferably, the number of the adjusting nuts 6 is the same as the number of the guide rods 5, that is, the plurality of guide rods 5 are all threaded rods, each threaded rod is provided with one adjusting nut 6, each nut needs to be rotated to the same height during actual use, the adjustment of the installation height of the first fixing base 1 is achieved, and the adjustment of the height of the rear end 1011 of the cross beam can be achieved because the first fixing base 1 is connected with the rear end 1011 of the cross beam. And each guide rod 5 is in threaded connection with an adjusting nut 6, so that the connection strength between the first fixing base 1 and the rear end 1011 of the cross beam 101 can be improved.

Further, the elastic piece 3 is a spiral spring or a belleville spring, and pressure is applied to the first fixing seat 1 and the second fixing seat 2 through the upper side and the lower side of the spring respectively, so that the first fixing seat 1 can be abutted against the adjusting nut 6, and the adjusting nut 6 is convenient to drive the first fixing seat 1 to move up and down.

Further, the mounting holes 4 are formed in the circumferential direction of the first fixing base 1 and the circumferential direction of the second fixing base 2, bolts are mounted in the mounting holes 4, and then the bolts are connected with the rear end 1011 of the cross beam or the truss 9, so that the connection strength of the first fixing base 1 and the rear end 1011 of the cross beam during mounting is improved, and the connection strength of the second fixing base 2 and the truss 9 during mounting is improved.

Still further, a plurality of mounting holes 4 are equidistantly formed, and during actual installation, bolts are only required to be installed in the corresponding mounting holes 4 according to actual requirements, and all the mounting holes 4 are not required to be installed.

Further preferably, the first holder 1 and the second holder 2 can be understood as flanges.

Further, the first fixing seat 1 and the second fixing seat 2 are provided with a plurality of lugs 7, through holes for installing the guide rods 5 are formed in the lugs 7, and the guide rods 5 are in sliding connection with the through holes. The lug 7 can separate the guide rod 5 from the cross beam 101 or the truss 9 for a certain distance, so that the adjusting nut 6 can be adjusted at a later period, and the clamping phenomenon between the cross beam 101 or the truss 9 and the adjusting nut 6 is prevented. When installed, the cross beam 101 or truss 9 is mounted between two adjacent lugs 7, and therefore, the spacing between two adjacent lugs 7 must be greater than or equal to the width of the cross beam 101 or truss 9. And the left side and the right side of the cross beam 101 or the truss 9 can be limited by installing the guide rod 5 on the lug 7.

Referring to fig. 3, further, the first fixing base 1 and the second fixing base 2 are provided with weight reducing holes 8, that is, holes formed in the middle parts of the first fixing base 1 and the second fixing base 2, and the elastic member 3 cannot slip from the holes.

Referring to FIG. 4, the present utility model also contemplates a rake sootblower 10 comprising: the frame comprises a cross beam 101 and a longitudinal beam 102, and further comprises an adjusting device in any embodiment, wherein the first fixing base 1 is connected with the rear end 1011 of the cross beam, and the second fixing base 2 is connected with the truss 9 of the denitration reactor 11; a central tube 103 slidably disposed on the cross beam 101, the central tube 103 being for introducing gas therein; and a showerhead assembly 104 disposed at a front end 1012 of the center tube 103 and in communication with the center tube 103.

It should be noted that the structural arrangement of the rake soot blower 10 is determined by the arrangement of the catalyst, and the length of the main body can reach more than 10 meters. The main body consists of a cross beam 101, a gear box, a traveling box, a soot blowing outer pipe 105, a central pipe 103, a spray head assembly 104 and a furnace wall interface box. The rake type soot blower 10 is slender as a whole, the soot blowing outer tube 105 and the central tube 103 need to pass through the wall plate of the reactor, half of devices are hung inside the denitration reactor 11, and half of devices are hung on the truss 9. In the installation description of the rake type soot blower 10, the expansion of the wall plate of the denitration reactor 11 needs to be considered during installation, and the connection between the central tube 103 of the rake type soot blower 10 and the outer tube of the soot blower should be ensured on the same horizontal axis to avoid inclination. However, in practice, it has been found that when the central control indicates that some single rake sootblowers 10 are not able to walk, the outer tube and the central tube 103 are often caused to be out of level due to temperature differences, thereby seizing.

The utility model also discloses a denitration reactor 11 which comprises the rake soot blower 10 and the adjusting device in the embodiment. Wherein the central tube 103 extends into the denitration reactor 11.

And (2) mounting: when the rake soot blower 10 is installed, the second fixing seat 2 is connected with the truss 9 through bolts, the second fixing seat 2 is connected with the rear end 1011 of the beam of the rake soot blower 10, and the number and the strength of the bolts need to be determined through calculation. The position A is the installation position of the adjusting device.

The tightness of the adjusting nut 6 of the guide rod 5 is adjusted to compress or stretch the elastic piece 3 and change the height of the adjustable device, thereby completing the horizontal adjustment of the whole rake soot blower 10.

And (3) mounting and leveling: level gauges are placed on the cross beam 101, the central tube 103 and the front end 1012 of the cross beam of the rake soot blower 10, and tightness of the adjusting nuts 6 of the guide rods 5 of the adjusting device is adjusted to ensure the installation level. Under the condition of no hot air, the normal operation of the rake soot blower 10 and the correct central control signal are ensured, and the cold regulation is completed.

When the denitration reactor 11 is connected to a production line, after the temperature of the denitration reactor 11 is raised, if the rake soot blower 10 is found to be blocked, a level gauge is placed on the rear end 1011 of the beam 101 of the rake soot blower 10, and the adjusting nut 6 of the adjusting device is circularly adjusted to reach the level.

After the adjusting device is added, if the unbalance problem is found, the adjusting device can be conveniently adjusted, the rake soot blower 10 is kept horizontal, the problem that the central tube 103 and the soot blowing outer tube 105 are not coaxial and horizontal due to the temperature rise and the like is solved, and the rake soot blower 10 is cleaned in a reciprocating way without blocking, so that the catalyst is ensured to be clean.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims

1. An adjustment device, comprising:

a first fixing seat;

the second fixing seat;

2. The adjustment device of claim 1, wherein the adjustment assembly comprises:

at least one adjusting nut, threaded connection in on the guide bar, adjusting nut supports to be fastened in first fixing base keep away from on the side surface of second fixing base.

3. The adjusting device according to claim 2, wherein the adjusting nuts are the same as the guide rods in number and correspond one-to-one.

4. The adjustment device of claim 1, wherein the elastic member is a coil spring or a belleville spring.

5. The adjustment device of claim 1, wherein the first and second holders are each provided with a mounting hole.

6. The adjusting device of claim 5, wherein the mounting holes are uniformly distributed along the circumference of the first and second holders.

7. The adjusting device of claim 2, wherein the first fixing seat and the second fixing seat are provided with a plurality of lugs, through holes are formed in the lugs, and the guide rods are slidably connected in the through holes.

8. The adjusting device of claim 2, wherein the first fixing base and the second fixing base are provided with weight reducing holes.

9. A rake sootblower, comprising:

a frame comprising a cross beam and a longitudinal beam;

the adjustment device of any one of claims 1 to 8, wherein the first fixing base is connected to the rear end of the cross beam, and the second fixing base is connected to a truss of a denitration reactor;

10. A denitration reactor comprising the rake soot blower of claim 9, said center tube extending into said denitration reactor.