CN216008649U

CN216008649U - Catalyst box

Info

Publication number: CN216008649U
Application number: CN202122575096.2U
Authority: CN
Inventors: 姜健
Original assignee: China Shipbuilding Power Engineering Institute Co Ltd
Current assignee: China Shipbuilding Power Engineering Institute Co Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-11
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to a boats and ships equipment technical field discloses a catalyst box for with catalyst monomer installation in the pipe of discharging fume of engine, the catalyst box includes: the frame structure comprises a plurality of outer frames, the outer frames are connected with one another to form a placing space, the placing space is used for placing the catalyst monomer, a guide groove is formed in the frame structure, a guide rail is arranged on the inner wall of the smoke exhaust pipe, and the guide groove is configured to be matched with the guide rail; the box body stop plate is connected to the frame structure and is configured to be blocked at a preset position of the inner wall of the smoke exhaust pipe; and the outer frame of the stop bolt is provided with a stop bolt hole, and the stop bolt is screwed in the stop bolt hole and inserted into the catalyst monomer. Through the structure, the catalyst monomer can be placed in the catalyst box body, and the catalyst box body can be quickly installed in a smoke exhaust pipe of an engine, so that the catalyst is convenient to install and replace.

Description

Catalyst box

Technical Field

The utility model relates to a marine facilities technical field especially relates to a catalyst box.

Background

With the requirement of international maritime organization on future nitrogen oxide emission becoming more and more severe, the installation of a selective catalytic reduction device on a marine main engine becomes an important technical method for reducing the nitrogen oxide emission of a diesel engine and meeting the emission regulations. The selective catalytic reduction catalyst needs to have the best and the most sufficient catalytic effect when the exhaust gas flows smoothly and the temperature is within a certain range.

Flue gas denitration catalyst monomer of boats and ships host computer mainly is honeycomb structure, and catalyst monomer is in the same place with different compound mode pile, forms the overall structure that has certain appearance and installs in reaction unit. The outer edge of the whole catalyst is well sealed, the flue gas and the atomized urea aqueous solution flow through the honeycomb type selective catalytic reduction catalyst in a high-temperature state, and nitrogen oxides in the flue gas react under the action of the catalyst to generate nontoxic and pollution-free nitrogen and water.

The activity of the catalyst gradually decreases with the passage of time, and the catalyst must be replaced in time in order to ensure the catalytic effect. In the prior art, because the catalyst monomers are only stacked to form a whole, the catalyst monomers are easy to scatter during installation and replacement, so that the installation and the replacement are very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a catalyst box can place the catalyst monomer in this catalyst box to can install fast in the pipe of discharging fume of engine, make the installation and the change convenience of catalyst.

To achieve the purpose, the utility model adopts the following technical proposal:

a catalyst case for mounting a catalyst monolith in an exhaust pipe of an engine, the catalyst case comprising:

the frame structure comprises a plurality of outer frames, the outer frames are connected with one another to form a placement space, the placement space is used for placing the catalyst monomers, a guide groove is formed in the frame structure, a guide rail is arranged on the inner wall of the smoke exhaust pipe, and the guide groove is configured to be matched with the guide rail;

a case stop plate coupled to the frame structure, the case stop plate configured to block a predetermined position of an inner wall of the smoke discharge pipe;

and the outer frame is provided with a stop bolt hole, and the stop bolt is screwed in the stop bolt hole and inserted into the catalyst monomer.

As a preferable scheme of the catalyst box body, the catalyst box body further comprises a first catalyst stop plate, the first catalyst stop plate is connected to one side of the frame structure, and the first catalyst stop plate is used for limiting the catalyst monomer.

As a preferable mode of the catalyst case body, the catalyst case body further includes a second catalyst stopper plate detachably attached to a side of the frame structure opposite to the first catalyst stopper plate.

As a preferable mode of the catalyst case, the first catalyst stopper plate is attached to the frame structure by welding.

As a preferable scheme of the catalyst box body, the catalyst box body further comprises a reinforcing frame, and the reinforcing frame is connected between the two outer frames which are arranged at intervals.

As a preferable scheme of the catalyst box body, the frame structure further comprises a positioning pin, a positioning hole is arranged on the outer frame, and two ends of the positioning pin are respectively inserted into the positioning holes of the two connected outer frames.

As a preferable scheme of the catalyst box body, the catalyst box body further comprises a sealing plate, the sealing plate is detachably connected to the frame structure, and the sealing plate is used for realizing sealing between the frame structure and the inner wall of the smoke exhaust pipe.

As a preferable aspect of the catalyst case, the catalyst case further comprises a distance bending plate, and the distance bending plate is connected to the frame structure.

As a preferred scheme of the catalyst box body, a hoisting structure is arranged on the frame structure.

As a preferable mode of the catalyst case, the outer frames connected to each other are connected by welding.

The utility model has the advantages that:

the utility model provides a catalyst box, this catalyst box are arranged in installing catalyst monomer in the pipe of discharging fume of engine, and this catalyst box includes frame construction, box locking plate and locking bolt, and a plurality of frames are connected and are constituteed frame construction and are formed and are used for placing the free laying space of catalyst, the last direction recess that matches of guide rail on the frame construction and the inside wall of the pipe of discharging fume for this catalyst box can slide and pack into in the pipe of discharging fume. The box body stop plate is connected to the frame structure, and the box body brake plate is used for limiting and blocking a preset position of the inner wall of the smoke exhaust pipe, so that the catalyst box body is convenient to position when sliding. A stop bolt hole is formed in the outer frame, the stop bolt is screwed in the stop bolt hole and inserted into the catalyst monomer, and the catalyst monomer can be detachably and firmly fixed and arranged in the catalyst box body. Through the structure, the catalyst monomers can be fixedly placed in the catalyst box body, so that the catalyst monomers can be installed and detached together with the catalyst box body and can be quickly installed in a smoke exhaust pipe of an engine, and the catalyst is convenient to install and replace.

Drawings

FIG. 1 is a schematic structural diagram of a catalyst box according to an embodiment of the present invention without a catalyst monomer;

fig. 2 is a schematic structural diagram of the catalyst box provided by the embodiment of the present invention after the catalyst single body is installed.

In the figure:

1. an outer frame; 2. a placing space; 3. a guide groove; 4. a box body stop plate; 5. a stop bolt; 51. a stop bolt hole; 6. a first catalyst stopper plate; 7. a second catalyst stopper plate; 8. a reinforcing frame; 9. a sealing plate; 10. a fixed-distance bent plate; 11. and (5) hoisting the structure.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the catalyst box provided by the present invention is further explained by the specific embodiment with reference to the drawings.

The embodiment provides a catalyst box body, this catalyst box body is used for installing catalyst monomer in the exhaust pipe of engine, as shown in fig. 1-2, this catalyst box body includes frame construction and locking bolt 5, and the frame construction includes a plurality of frames 1, and a plurality of frames 1 interconnect constitutes frame construction and forms laying space 2, and laying space 2 is used for placing a plurality of catalyst monomers. The outer frame 1 is provided with a stop bolt hole 51, the stop bolt 5 is screwed in the stop bolt hole 51 and inserted into the catalyst monomer, so that the catalyst monomer can be detachably firmly fixedly arranged and positioned in the catalyst box body, the catalyst monomer can be together arranged and disassembled along with the catalyst box body, the catalyst monomer is quickly arranged in a smoke exhaust pipe of an engine, and the catalyst is convenient to install and replace.

In the present embodiment, the housing space 2 is used for housing two layers of catalyst units, and each layer of catalyst unit is provided with three catalyst units. It will be appreciated that in other embodiments, the catalyst units in the housing space 2 may be in other quantities and/or in other stacked forms, and may be arranged by those skilled in the art according to the actual circumstances.

Preferably, the frame structure further comprises a positioning pin, the outer frame 1 is provided with a positioning hole, and two ends of the positioning pin are respectively inserted into the positioning holes of the two mutually connected outer frames 1, so that the two mutually connected outer frames 1 are mutually positioned. Further, the outer frames 1 connected with each other are connected by welding, so that the frame structure formed by connecting the outer frames 1 is firm. Further, frame 1 adopts square steel to make for frame 1's structural strength is high, and bearing capacity is strong.

In this embodiment, the last direction recess 3 that is provided with of frame construction is equipped with the guide rail on the inner wall of tub of discharging fume, and direction recess 3 matches with the guide rail for this catalyst box can discharge fume the tub through the guide rail fast loading, makes the convenience of tearing open and packing into of this catalyst box, thereby makes the easy dismounting of catalyst.

Preferably, the catalyst box further comprises a box stop plate 4, the box stop plate 4 is detachably connected to the frame structure, and the box stop plate is configured to block a preset position of the inner wall of the smoke exhaust pipe, so that the catalyst box can be stopped and positioned by the box stop plate 4 when sliding to the preset position, and the positioning of the catalyst box is realized.

In this embodiment, the catalyst box further includes a first catalyst stopper plate 6, the first catalyst stopper plate 6 is connected to one side of the frame structure, and the first catalyst stopper plate 6 is used for limiting the catalyst unit and preventing the catalyst unit from falling out of the housing space 2. Specifically, the first catalyst stopper plate 6 is attached to the frame structure by welding, so that the attachment of the first catalyst stopper plate 6 is firm.

Preferably, the catalyst box further comprises a second catalyst stopper plate 7, the second catalyst stopper plate 7 is detachably connected to a side of the frame structure opposite to the first catalyst stopper plate 6, after the catalyst monomer is loaded into the housing space 2, the second catalyst stopper plate 7 is connected to the frame structure, and the second catalyst stopper plate 7 and the first catalyst stopper plate 6 together limit the catalyst monomer in the housing space 2 to prevent the catalyst monomer from falling off from the housing space 2.

Further, as shown in fig. 2, the catalyst box body further comprises a sealing plate 9, the sealing plate 9 is detachably connected to the frame structure, the sealing plate 9 is used for preventing a gap from occurring between the catalyst box body and the inner wall of the smoke exhaust pipe, sealing between the frame structure and the inner wall of the smoke exhaust pipe is realized, and smoke flowing through the smoke exhaust pipe can flow through the catalyst monomer in the catalyst box body for treatment.

In this embodiment, this catalyst box still includes strengthening frame 8, strengthens frame 8 and connects between the frame 1 that two intervals set up, has improved the holistic structural strength of frame construction, is favorable to prolonging the life of catalyst box. Preferably, the catalyst case further comprises distance bent plates 10, the distance bent plates 10 being attached to the frame structure to facilitate positioning and support of the catalyst case during loading into the flue pipe.

In this embodiment, as shown in fig. 1, a hoisting structure 11 is provided on the frame structure, so that the catalyst box can be hoisted and installed by a crane or other machinery, thereby facilitating the assembly and disassembly of the catalyst box.

The following is a description of the installation process of the catalyst case.

Firstly, the catalyst box body with the lower sealing plate 9 and the second catalyst stop plate 7 detached is placed on a guide rail in the smoke exhaust pipe, and the guide groove 3 is matched with the guide rail. The catalyst box body is supported on the fixed-distance bent plate 10 by using a tool, lifted upwards by the lifting structure 11, and then pushed into the smoke exhaust pipe after sliding smoothly between the guide groove 3 and the guide rail. Then, the honeycomb-shaped catalyst monomer is stacked in the mounting space 2 in the upper and lower layers, and the stop bolt 5 is installed to position the catalyst monomer. Next, the second catalyst stopper plate 7 and the sealing plate 9 are installed. Finally, a case stop plate 4 is installed to securely locate the catalyst case in the exhaust pipe of the engine.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

It is noted that reference throughout this specification to "some embodiments," "other embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A catalyst case for mounting a catalyst monolith in a smoke exhaust of an engine, the catalyst case comprising:

the catalyst single body placing device comprises a frame structure, wherein the frame structure comprises a plurality of outer frames (1), the outer frames (1) are connected with one another to form a placing space (2), the placing space (2) is used for placing the catalyst single body, a guide groove (3) is formed in the frame structure, a guide rail is arranged on the inner wall of a smoke exhaust pipe, and the guide groove (3) is configured to be matched with the guide rail;

a case stop plate (4), the case stop plate (4) being attached to the frame structure, the case stop plate being configured to be stopped at a predetermined position of an inner wall of the smoke discharge duct;

the outer frame (1) is provided with a stop bolt hole (51), and the stop bolt (5) is screwed in the stop bolt hole (51) and inserted into the catalyst monomer.

2. The catalyst case of claim 1, further comprising a first catalyst stopper plate (6), the first catalyst stopper plate (6) being attached to one side of the frame structure, the first catalyst stopper plate (6) being for restraining the catalyst monolith.

3. A catalyst case according to claim 2 further comprising a second catalyst retainer plate (7), the second catalyst retainer plate (7) being releasably attached to the frame structure on the side opposite the first catalyst retainer plate (6).

4. A catalyst case according to claim 2, wherein the first catalyst retainer plate (6) is attached to the frame structure by welding.

5. The catalyst box body according to claim 1, further comprising a reinforcing frame (8), wherein the reinforcing frame (8) is connected between two outer frames (1) which are arranged at intervals.

6. The catalyst box body according to claim 1, wherein the frame structure further comprises a positioning pin, a positioning hole is arranged on the outer frame (1), and two ends of the positioning pin are respectively inserted into the positioning holes of the two connected outer frames (1).

7. The catalyst box according to claim 1, further comprising a seal plate (9), the seal plate (9) being removably attached to the frame structure, the seal plate (9) being adapted to effect a seal between the frame structure and the inner wall of the flue pipe.

8. The catalyst tank of claim 1 further comprising distance brackets (10), the distance brackets (10) being attached to the frame structure.

9. The catalyst box according to claim 1, characterized in that the frame structure is provided with a lifting structure (11).

10. The catalyst tank body according to claim 1, wherein the outer frames (1) connected to each other are connected by welding.