CN217662528U - Spraying device for boiler flue gas denitration reaction tower - Google Patents

Abstract

The utility model discloses a spray set for boiler flue gas denitration reaction tower, which belongs to the technical field of flue gas denitration treatment and aims at the problems that the accumulation of residues is easily generated at the local position between the inner peripheral surface of the spray set and a catalytic reaction layer in the interior of the spray set and the spraying range has certain limitation; the utility model discloses a clean cover limit is around the intermediate position department of motion seat carries out revolution limit self and is circular motion to contact site between catalytic reaction layer body and the spray thrower shell inner peripheral surface carries out cleaning, thereby makes to depend on the residue that contains in contact site's flue gas to drop, thereby has guaranteed the reaction effect between flue gas and the catalytic reaction layer body.

Description

Spraying device for boiler flue gas denitration reaction tower

Technical Field

The utility model belongs to the technical field of flue gas denitration treatment, concretely relates to boiler flue gas denitration spray set for reaction tower.

Background

The boiler is an energy conversion equipment, need carry out denitration treatment to the flue gas that the boiler burning produced when using just can discharge to avoid to environment and artificial serious consequence, need handle through corresponding spray set to denitration treatment of the flue gas of boiler emission.

The spray set for boiler flue gas denitration reaction tower among the prior art directly sprays the ammonia liquid through the sprinkler head to carry out denitration treatment to the flue gas of boiler emission, when in actual use, have following problem:

(1) boiler flue gas denitration for reaction tower among the prior art spray set for the reaction tower when the flue gas upwards drifts about through the inside of air inlet admission gear, produces the accumulational condition of residue in sprayer shell inner peripheral surface and the local position department that is in between the inside catalytic reaction layer of device easily, and then influences the reaction between flue gas and the catalytic reaction layer, is unfavorable for the use.

(2) The spraying range of the spraying device for the boiler flue gas denitration reaction tower in the prior art is fixed, so that the spraying range has certain limitation, the spraying effect is influenced, and the sprayed ammonia liquid is not sufficiently contacted with the flue gas and is not beneficial to use.

Therefore, a spraying device for a boiler flue gas denitration reaction tower is needed to solve the problems that residues are easy to accumulate at a local position between the inner peripheral surface of the spraying device and a catalytic reaction layer in the device and the spraying range has certain limitation in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler flue gas denitration spray set for reaction tower to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a boiler flue gas denitration spray set for reaction tower, includes the sprayer shell, the bottom of sprayer shell is fixed with the base, base inner chamber's intermediate position department installs electric putter, the bottom of sprayer shell inner chamber is provided with the motion seat, the bottom of motion seat is fixed with the link that is the U-shaped setting, the below of link is provided with the connecting plate, the intermediate position department of link is provided with the bearer bar, the inside of bearer bar is fixed with the second motor, the output of second motor passes bearer bar and link and the top of connecting plate in proper order rotates and is connected, the shaft slot has been seted up to the inside of motion seat, the intermediate position department swing joint of shaft slot has two loose axles, the top of bearer bar is fixed with the fixed axle, the top of axis of rotation passes the motion seat and extends to the inside of shaft slot, the fixed cover that the fixed axle extends to the inside peripheral face of shaft slot is equipped with first conical gear, the outer peripheral face fixed cover of loose axle is equipped with two shape gears, the both sides of shaft slot inner chamber are connected with the axis of rotation, the top of axis of rotation passes the shaft slot and extends the outside fixed cover of motion seat and is equipped with the clean surface of the third conical gear extension of the fixed cover of motion seat, the outside of motion seat extends the fixed cover and is equipped with the clean inner chamber.

It needs to explain in the scheme that the top of spray thrower shell inner chamber is provided with the appearance that sprays, the top of spraying the appearance is provided with the connecting pipe, the top of connecting pipe is passed the spray thrower shell and is extended to the outside of spray thrower shell, the shower head is installed to the bottom of spray thrower, the shower head has a plurality ofly, and is a plurality of the left and right sides of spray thrower bottom is arranged in as the symmetry axis to the central line that the positive vertical direction of shower used the shower.

It is further worth mentioning that a first motor is installed on the top of the sprayer housing, and an output end of the first motor penetrates through the sprayer housing and extends to the inside of the sprayer housing.

It should be further noted that a gear ring is fixedly sleeved on the outer peripheral surface of the sprayer, a circular gear is fixedly sleeved on the surface of the part, extending to the inner part of the sprayer shell, of the output end of the first motor, and one side of the gear ring is meshed with the circular gear.

As a preferred embodiment, the top of the inner cavity surface of the sprayer housing is provided with a limiting groove, two limiting blocks are movably arranged in the limiting groove, and the bottoms of the two limiting blocks penetrate through the limiting groove and are fixed with the surface of the top of the sprayer.

In a preferred embodiment, the width of the top cavity of the limiting groove is wider than that of the bottom cavity of the limiting groove, and the width of the top surface of the limiting block is wider than that of the bottom surface of the limiting block.

In a preferred embodiment, the two cleaning sleeves are arranged at opposite positions on two sides of the moving seat by taking a central line in the vertical direction of the front surface of the moving seat as a symmetry axis, and the surfaces of the cleaning sleeves on the sides far away from each other are attached to the inner circumferential surface of the sprayer housing.

Compared with the prior art, the utility model provides a pair of boiler flue gas denitration spray set for reaction tower includes following beneficial effect at least:

(1) Through starting electric putter, and then make the motion seat along vertical direction motion, until two clean covers are close to the position department of the contact site between sprayer shell inner peripheral surface and the catalytic reaction layer body, through starting the second motor, thereby make the link be circular motion, and then make the motion seat be circular motion, thereby make clean cover limit carry out revolution limit self around the intermediate position department of motion seat and be circular motion, thereby contact site to between catalytic reaction layer body and the sprayer shell inner peripheral surface carries out cleaning work, thereby make and depend on the residue that contains in the flue gas of contact site to drop, thereby the reaction effect between flue gas and the catalytic reaction layer body has been guaranteed, thereby the device's practicality has been improved.

(2) Through starting first motor, thereby make the output of first motor drive the circular gear and be circular motion, and then make ring gear and circular gear take place the meshing effect, thereby make the spraying appearance be circular motion under the limiting displacement of spacing groove and stopper, and then make the shower head carry out the revolution with the intermediate position department of spraying appearance, thereby make the shower head possess certain spray regime, thereby the spray effect of the device has been improved, thereby the ammoniacal liquor that sprays out from the shower head department can be more abundant with the flue gas contact, be favorable to the denitration treatment of flue gas, thereby the practicality of the device has further been improved.

Drawings

Fig. 1 is a schematic perspective view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the three-dimensional structure of the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention;

fig. 4 is a schematic perspective view of a partial structure of the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a sprayer housing; 2. a base; 3. a first motor; 4. a connecting pipe; 5. an electric push rod; 6. a motion base; 7. a connecting plate; 8. a connecting frame; 9. a protective frame; 10. a second motor; 11. a fixed shaft; 12. a first bevel gear; 13. a shaft groove; 14. a movable shaft; 15. a second bevel gear; 16. a rotating shaft; 17. a third bevel gear; 18. cleaning the sleeve; 19. a spraying instrument; 20. a ring gear; 21. a shower head; 22. a circular gear; 23. a limiting groove; 24. a limiting block; 25. and catalyzing the reaction layer body.

Detailed Description

The present invention will be further described with reference to the following examples.

In order to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, the following will combine the drawings of the embodiments of the present invention to clearly and completely describe the technical scheme of the embodiments of the present invention, and obviously, the described embodiments are a part of the embodiments of the present invention, rather than all embodiments, and based on the described embodiments of the present invention, all other embodiments obtained by the ordinary skilled person in the art on the premise of not needing creative work all belong to the scope of protection of the present invention.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-5, the utility model provides a spray device for a boiler flue gas denitration reaction tower, which comprises a spray device housing 1, a base 2 is fixed at the bottom of the spray device housing 1, an electric push rod 5 is installed at the middle position of the inner cavity of the base 2, a motion seat 6 is arranged at the bottom of the inner cavity of the spray device housing 1, a connecting frame 8 arranged in a U shape is fixed at the bottom of the motion seat 6, a connecting plate 7 is arranged below the connecting frame 8, a protective frame 9 is arranged at the middle position of the connecting frame 8, a second motor 10 is fixed inside the protective frame 9, the output end of the second motor 10 sequentially passes through the protective frame 9 and the connecting frame 8 to be rotatably connected with the top of the connecting plate 7, the joint of the connecting frame 8 and the output end of the second motor 10 is rotatably connected through a bearing, a shaft groove 13 is arranged inside the motion seat 6, two movable shafts 14 are movably connected at the middle position of the shaft groove 13, a fixed shaft 11 is fixed at the top of the protection frame 9, the top of the fixed shaft 11 penetrates through the moving seat 6 and extends to the inside of the shaft groove 13, a first bevel gear 12 is fixedly sleeved on the outer peripheral surface of the part of the fixed shaft 11 extending to the inside of the shaft groove 13, two second bevel gears 15 are fixedly sleeved on the outer peripheral surface of the movable shaft 14, rotating shafts 16 are movably connected to two sides of the inner cavity of the shaft groove 13, the top of the rotating shaft 16 penetrates through the shaft groove 13 and extends out of the moving seat 6, a third bevel gear 17 is fixedly sleeved on the outer peripheral surface of the part of the rotating shaft 16 arranged in the moving seat 6, a cleaning sleeve 18 is fixedly sleeved on the surface of the part of the rotating shaft 16 extending out of the moving seat 6, a catalytic reaction layer body 25 is arranged at the middle position of the inner cavity of the sprayer housing 1, the cleaning sleeve 18 vertically moves to the contact position of the catalytic reaction layer body 25 and the inner peripheral surface of the sprayer housing 1 by driving the electric push rod 5, the second motor 10 drives the cleaning sleeve 18 to do revolution motion and circular motion, so as to clean the smoke residue attached to the contact position.

Further as shown in fig. 2, it is worth specifically explaining that a spraying instrument 19 is arranged at the top of an inner cavity of the sprayer housing 1, a connecting pipe 4 is arranged at the top of the spraying instrument 19, the top of the connecting pipe 4 penetrates through the sprayer housing 1 and extends to the outside of the sprayer housing 1, a plurality of spraying heads 21 are arranged at the bottom of the sprayer 19, the plurality of spraying heads 21 are arranged at the left side and the right side of the bottom of the sprayer 19 by taking a central line of the front vertical direction of the sprayer 19 as a symmetry axis, ammonia liquid is injected into the inside of the sprayer 19 through the connecting pipe 4, the ammonia liquid inside the sprayer 19 can be sprayed out through the spraying heads 21 at the bottom of the sprayer 19, and the spraying range of the spraying heads 21 is ensured not to be overlapped excessively by arranging the spraying heads 21 at corresponding positions at the bottom of the sprayer 19.

Further as shown in fig. 2, it is worth specifically explaining that, a first motor 3 is installed at the top of the sprayer housing 1, an output end of the first motor 3 penetrates through the sprayer housing 1 and extends to the inside of the sprayer housing 1, a gear ring 20 is fixedly sleeved on the outer peripheral surface of the sprayer 19, a circular gear 22 is fixedly sleeved on the surface of the part, extending to the inside of the sprayer housing 1, of the output end of the first motor 3, one side of the gear ring 20 is meshed with the circular gear 22, the first motor 3 is started, so that the output end of the first motor 3 drives the circular gear 22 to do circular motion, the gear ring 20 is meshed with the circular gear 22, the sprayer 19 makes circular motion under the limiting action of the limiting groove 23 and the limiting block 24, and the sprayer 21 revolves at the middle position of the sprayer 19, and the sprayer 21 has a certain spraying range.

The scheme has the following working processes: in the process of practical use, when a user needs to clean residue attached to a contact part between the catalytic reaction layer body 25 and the inner circumferential surface of the sprayer housing 1, firstly, the electric push rod 5 is started, so that the output end of the electric push rod 5 extends upwards, so that the connecting plate 7 extends upwards along the vertical direction, so that the connecting frame 8 and the motion base 6 move upwards along the vertical direction, so as to drive the cleaning sleeve 18 to move upwards vertically, until the outer circumferential surface of the cleaning sleeve 18 is attached to the contact part between the catalytic reaction layer body 25 and the inner circumferential surface of the sprayer housing 1, by starting the second motor 10, so that the output end of the second motor 10 moves circularly, so that the connecting frame 8 moves circularly, so that the motion base 6 moves circularly, so that the movable shaft 14 moves around the central point of the motion base 6, in the process, the second bevel gear 15 is engaged with the first bevel gear 12 at the corresponding position, so that the movable shaft 14 moves circularly, so as to drive the other bevel gear 15 to move around the rotary shaft, so as to engage with the third bevel gear 17 at the corresponding position, so that the cleaning gear 17 moves around the rotary shaft 19, so that the cleaning head 16 moves around the cleaning gear 19, so that the cleaning head 18 moves around the rotary shaft 19 and the cleaning head 16, the ammonia liquid in the spraying instrument 19 can be sprayed out through the spraying head 21 at the bottom of the spraying instrument 19, and the spraying head 21 is arranged at the corresponding position at the bottom of the spraying instrument 19 to reduce the revolving motion, so that a certain spraying range is ensured.

According to the working process, the following steps are carried out: the cleaning sleeve 18 is arranged at the contact part of the inner peripheral surface of the catalytic reaction layer body 25 and the sprayer shell 1, and revolves while moving to do circular motion, so that residues attached to the contact part of the inner peripheral surface of the catalytic reaction layer body 25 and the sprayer shell 1 are removed, the reaction effect between the flue gas and the catalytic reaction layer body 25 is kept, the situation that residues are accumulated easily at the local position between the inner peripheral surface of the sprayer shell 1 and the catalytic reaction layer inside the device is avoided, the reaction between the flue gas and the catalytic reaction layer is influenced, the spraying is performed by the revolving motion of the spray header 21, the spray header 21 has a certain spraying range, the spraying effect of the device is improved, the ammonia liquid sprayed from the spray header 21 can be in contact with the flue gas more fully, and the denitration treatment of the flue gas is facilitated.

Further as shown in fig. 2 and 3, it is worth specifically explaining that a limiting groove 23 is formed in the top of the inner cavity surface of the sprayer housing 1, two limiting blocks 24 are movably arranged inside the limiting groove 23, the bottoms of the two limiting blocks 24 penetrate through the limiting groove 23 and are fixed to the surface of the top of the sprayer 19, as shown in fig. 4, it is worth specifically explaining that the limiting blocks 24 are driven to slide along the inner cavity of the limiting groove 23 in the process of circular motion of the sprayer 19, so that the motion track of the sprayer 19 is limited, and the sprayer 19 can be more stable in the process of circular motion.

As further shown in fig. 2 and fig. 3, it is worth specifically explaining that the width of the top inner cavity of the limiting groove 23 is wider than the width of the bottom inner cavity thereof, and the width of the top surface of the limiting block 24 is wider than the width of the bottom surface thereof, because the widths of the inner cavity of the limiting groove 23 and the surface of the limiting block 24 are changed, under the interference effect between the surfaces of the two, the limiting block 24 can be prevented from being separated from the inside of the limiting groove 23, and the contact area between the two is passed, and the interference limiting effect of the inner cavity of the limiting groove 23 on the limiting block 24 is passed.

As further shown in fig. 2 and 3, it is worth specifically explaining that the two cleaning sleeves 18 are disposed at opposite positions of two sides of the moving seat 6 with a center line of the front vertical direction of the moving seat 6 as a symmetry axis, and surfaces of the cleaning sleeves 18 away from each other are attached to the inner circumferential surface of the shower housing 1, and since the cleaning sleeves 18 are attached to the inner circumferential surface of the shower housing 1 and symmetrically distributed, the cleaning sleeves 18 are closely attached to the inner circumferential surface of the shower housing 1 when moving, so as to ensure a certain friction force between the cleaning sleeves 18 and the inner circumferential surface of the shower housing 1.

To sum up: through arranging cleaning sleeve 18 in catalytic reaction layer body 25 and sprayer shell 1 inner peripheral surface contact position when the edge is revolutionary motion and self is circular motion, in order to get rid of some residues that catalytic reaction layer body 25 and sprayer shell 1 inner peripheral surface contact position depend on, thereby the reaction effect between flue gas and catalytic reaction layer body 25 has been kept, avoid appearing easily producing the condition that the residue is piled up in the local position department between sprayer shell 1 inner peripheral surface and the catalytic reaction layer that is in the device inside, and then the condition that influences the reaction between flue gas and the catalytic reaction layer takes place, it sprays to do the revolution motion through shower head 21, thereby make shower head 21 possess certain spray range, thereby the spray effect of the device has been improved, do circular motion's in-process through shower instrument 19 drive stopper 24 along the inner chamber of spacing groove 23 slide, thereby play the limiting action to the motion orbit of shower instrument 19, thereby make shower instrument 19 do circular motion in-process can be more firm, because the conflict width change of spacing groove 23 inner chamber and stopper 24 surface, thereby under the effect between the two surfaces, can avoid contact groove 24 from the contact of spacing groove 23 and be favorable to flue gas through the revolution motion of stopper 21 when denitration is handled fully, thereby flue gas, thereby the flue gas contact effect of spacing groove is processed through spacing groove 23, thereby more.

The first motor 3, the electric push rod 5 and the second motor 10 can be purchased from the market, and the first motor 3, the electric push rod 5 and the second motor 10 are provided with a power supply, which belongs to the mature technology in the field and are fully disclosed, so repeated description is not repeated in the specification.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art, and the use of the term "including" or "comprising" in the present application shall mean that the element or item preceding the term covers the element or item listed after the term and its equivalents, but does not exclude other elements or items, and the term "connected" or "connected" is not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", etc. merely indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may be changed accordingly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A spraying device for a boiler flue gas denitration reaction tower comprises a sprayer shell (1) and is characterized in that a base (2) is fixed at the bottom of the sprayer shell (1), an electric push rod (5) is installed at the middle position of an inner cavity of the base (2), a moving seat (6) is arranged at the bottom of the inner cavity of the sprayer shell (1), a connecting frame (8) which is arranged in a U shape is fixed at the bottom of the moving seat (6), a connecting plate (7) is arranged below the connecting frame (8), a protection frame (9) is arranged at the middle position of the connecting frame (8), a second motor (10) is fixed inside the protection frame (9), the output of second motor (10) passes bearer bar (9) and link (8) in proper order and rotates with the top of connecting plate (7) to be connected, axle groove (13) have been seted up to the inside of motion seat (6), intermediate position department swing joint of axle groove (13) has two loose axles (14), the top of bearer bar (9) is fixed with fixed axle (11), the top of fixed axle (11) is passed motion seat (6) and is extended to the inside of axle groove (13), fixed axle (11) extends to the fixed cover of the outer peripheral face of axle groove (13) inside part and is equipped with first conical gear (12), the fixed cover in outer peripheral face of loose axle (14) is equipped with two second conical gear (15) ) The utility model discloses a catalytic reaction layer, the both sides swing joint of axle slot (13) inner chamber has axis of rotation (16), the top of axis of rotation (16) is passed axle slot (13) and is extended out the outside of motion seat (6), the fixed cover in outer peripheral face of motion seat (6) inside part is arranged in axis of rotation (16) is equipped with third bevel gear (17), the fixed cover in surface that motion seat (6) outside part was extended out in axis of rotation (16) is equipped with clean cover (18), catalytic reaction layer body (25) are installed to the intermediate position department of sprayer shell (1) inner chamber.

2. The spraying device for the boiler flue gas denitration reaction tower of claim 1, characterized in that: the top of spray thrower shell (1) inner chamber is provided with sprays appearance (19), the top of spraying appearance (19) is provided with connecting pipe (4), the top of connecting pipe (4) is passed spray thrower shell (1) and is extended to the outside of spray thrower shell (1), shower head (21) are installed to the bottom of spray thrower (19), shower head (21) have a plurality ofly, a plurality of the left and right sides of spray thrower (19) bottom is arranged in as the symmetry axis with the central line of the positive vertical direction of spray thrower (19) to shower head (21).

3. The spraying device for the boiler flue gas denitration reaction tower of claim 2, characterized in that: the top of the sprayer housing (1) is provided with a first motor (3), and the output end of the first motor (3) penetrates through the sprayer housing (1) and extends into the sprayer housing (1).

4. The spraying device for the boiler flue gas denitration reaction tower of claim 3, characterized in that: the fixed cover of outer peripheral face of spraying appearance (19) is equipped with ring gear (20), the fixed cover in surface that first motor (3) output extended to the inside part of sprayer shell (1) is equipped with round gear (22), one side and the meshing of round gear (22) mutually of ring gear (20).

5. The spraying device for the boiler flue gas denitration reaction tower of claim 4, characterized in that: spacing groove (23) have been seted up at the top of shower shell (1) inner chamber face, the inside activity of spacing groove (23) is provided with two stopper (24), two the bottom of stopper (24) is passed spacing groove (23) and is fixed mutually with the surface at appearance (19) top of spraying.

6. The spraying device for the boiler flue gas denitration reaction tower of claim 5, characterized in that: the width of the top inner cavity of the limiting groove (23) is wider than that of the bottom inner cavity of the limiting groove, and the width of the top surface of the limiting block (24) is wider than that of the bottom surface of the limiting groove.

7. The spraying device for the boiler flue gas denitration reaction tower of claim 1, characterized in that: the two cleaning sleeves (18) are arranged at opposite positions of two sides of the moving seat (6) by taking a central line of the moving seat (6) in the vertical direction as a symmetry axis, and the surfaces of the cleaning sleeves (18) far away from one side are attached to the inner peripheral surface of the sprayer shell (1).

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