KR20140121129A

KR20140121129A - Selective Catalytic Reduction Providing Retractable Catalyst Module

Info

Publication number: KR20140121129A
Application number: KR1020130037420A
Authority: KR
Inventors: 권영우; 유정대
Original assignee: 현대중공업 주식회사
Priority date: 2013-04-05
Filing date: 2013-04-05
Publication date: 2014-10-15

Abstract

The present invention provides a catalyst module having a new structure type, which facilitates the transportation and mounting of individual catalysts, and provides a quick and simple operation for repairing or inspecting the catalysts. Further, the catalyst module is housed in a selective catalytic reduction device The present invention relates to a selective catalytic reduction device having a retractable catalytic module for facilitating the selection and use of the catalyst module through the structure.
In the present invention, a receiving port formed on one surface of a chamber through which an exhaust gas passes is formed to communicate with the inner space of the chamber; An opening / closing member detachably coupled to the front surface of the receiving port; And a catalyst module housed in the space of the chamber through the receiving port, wherein the catalyst module comprises a selective catalytic reduction device having an angle type mold and a plurality of individual catalysts fixed in the angle mold, Is provided.

Description

TECHNICAL FIELD [0001] The present invention relates to a selective catalytic reduction catalyst having a retractable catalyst module,

The present invention relates to a selective catalytic reduction device having a retractable catalytic module, and in particular, the present invention provides a catalytic module having a new structure type, which facilitates the transportation and mounting of individual catalysts, And the selection of the use and non-use of the catalyst module can be performed quickly and easily through the structure in which such a catalyst module is adopted as a retention type in the selective catalytic reduction apparatus.

Generally, Selective Catalytic Reduction (SCR) mixes with ammonia, which is a reducing agent, in order to reduce NOx contained in exhaust gas generated in the combustion process of fuel, passes through SCR catalyst, It is a kind of purification treatment system that reacts with a reducing agent, reduces the nitrogen and water vapor through the reaction, and discharges it to the atmosphere.

In a typical SCR system having the above configuration, a plurality of individual catalysts are simply installed in a chamber through which exhaust gas passes (see FIG. 1). Thus, the exhaust gas flowing from the inlet of the chamber passes through the individual catalyst, and then is transferred to the outlet of the chamber. Thus, the exhaust gas delivered to the outlet of the chamber is discharged to the outside.

However, since the general SCR system having the above configuration has a configuration in which the exhaust gas is exhausted to the outside even after passing through the individual catalyst even when the ship passes through the zone (sea area) which does not need to satisfy the nitrogen oxide specification, There is a problem in that the service life of the individual catalysts can not be extended.

Further, the weight of the individual catalysts fixed individually in the chamber is usually 20 to 45 Kg, and when a plurality of catalysts individually installed at the time of repairing and checking the chamber are transported from the inside to the outside of the chamber one by one, There is considerable time to re-mount and there are many difficulties in transporting.

As another general example, there is a system in which a bypass system for connecting the inlet of the chamber and the outlet of the chamber by a bypass line is provided, and the exhaust gas is discharged to the outside through the bypass line if necessary. If such a bypass system is provided, there is an advantage that the service life of the expensive individual catalyst provided inside the chamber can be extended by allowing the exhaust gas to be bypassed. However, there is a problem that the system including the material and the equipment for equipping the bypass system requires a great deal of cost. In addition, there is a problem that the ship is difficult to install the system easily due to the space restriction to equip it.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems presented in the background art, and it is easy to carry and mount individual catalysts by a catalyst module having a new structure type, Also, the present invention provides a selective catalytic reduction device having a retractable catalytic module for quickly and selectively selecting and using a catalyst module through a structure in which a catalytic module is housed in a selective catalytic reduction device. .

In the present invention, a receiving port formed on one surface of a chamber through which an exhaust gas passes is formed to communicate with the inner space of the chamber; An opening / closing member detachably coupled to the front surface of the receiving port; And a catalyst module housed in the space of the chamber through the receiving port, wherein the catalyst module comprises a selective catalytic reduction device having an angle type mold and a plurality of individual catalysts fixed in the angle mold, Is provided.

The retractable catalyst module is provided with guide members that are slidably moved along the rail member on the angle frame, wherein the guide member is fixed to the chamber, A selective catalytic reduction device is provided.

The chamber is fixed to both sides of the chamber in a state in which the support plate is horizontally aligned with the receiving opening, and rotation means is provided on either or both of the angle frame and the support plate. Type catalytic module.

The use of the selective catalytic reduction device having the retractable catalytic module according to the present invention enables easy transportation and mounting by a catalyst module having a new structure type, The exhaust gas can be exhausted without passing through the catalyst module or through the catalyst module through the structure in which the catalyst module is housed in the selective catalytic reduction device, so that the service life of the expensive individual catalyst can be extended Can be expected.

FIG. 1 is a perspective view illustrating a selective catalytic reduction apparatus including a retractable catalyst module according to the present invention, in which a catalyst module is introduced into a chamber. FIG.
FIG. 2 is a perspective view schematically showing a state in which the catalyst module of FIG. 1 is drawn out.
3 is a perspective view schematically showing another example of a selective catalytic reduction device having a retractable catalyst module according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a selective catalytic reduction device having a retractable catalyst module according to the present invention will be described in detail.

[Example 1]

1 and 2, a selective catalytic reduction apparatus 10 (hereinafter abbreviated as a reducing apparatus) having a retractable catalyst module according to the present invention includes a chamber 12, And the opening and closing member 16 for opening and closing the receiving opening 14 and the receiving opening 14 formed on one surface.

Specifically, the opening and closing member 16 is detachably coupled to the front surface of the receiving opening 14 for opening and closing the receiving opening 14. As an example of such a separating structure, a fastening structure using a bolt is applied between the receiving port 14 and the opening and closing member 16, or when the opening and closing member 16 is moved from one side edge T of the receiving port 14 toward the receiving port 14 It is also possible to adopt a structure in which the receiving opening 14 is blocked.

The space 18 of the chamber 12 is fixed to both sides of the chamber 12 in such a structure that the rail member 20 is horizontally aligned with the lower end of the rim T of the receiving port 14.

The catalyst module S1 disposed in the space 18 of the chamber 12 has a plurality of individual catalysts 22 accommodated in an angle frame 24 formed into a box- . A knob 26 for moving the angle frame 24 is formed on the front surface of the angle frame 24.

On both side surfaces of the angle frame 24 corresponding to the rail member 20, a guide portion 28 is formed so as to be able to slide along the rail member 20.

Therefore, for example, when the ship passes the zone (sea area) where it does not need to satisfy the nitrogen oxide requirement, the catalyst module S1 is moved to the outside of the chamber 12 through the receiving port 14 of the chamber 12 The exhaust gas (arrow) conveyed to the inlet 30 of the chamber 12 is discharged through the outlet 32 of the chamber 12 after the outlet 14 is closed by the opening and closing member 16, The catalyst module S1 is operated in a direction to extend the service life of the catalyst 22 and conversely when the catalyst module S1 passes through the zone (sea area) The exhaust gas being introduced into the inlet 30 of the chamber 12 is operated to be exhausted through the outlet 32 of the chamber 12 after the catalyst module S1 is called.

In addition, when the selective catalytic reduction apparatus having the retractable catalyst module according to the present invention is used, first, a plurality of individual catalysts 22 constitute one group, and through the structure mounted on the angle frame 24 The individual catalyst 22 can be easily provided with convenience for replacement, transportation, mounting, and inspection.

Further, even when repairing or inspecting the space 18 of the chamber 12, the accommodating of the catalyst module S1 is quick and easy, and the convenience of quick inspection and repair can be provided.

[Example 2]

FIG. 3 is a perspective view schematically showing another example of the selective catalytic reduction device having the retractable catalyst module according to the present invention.

In the first embodiment, the catalyst module S1 is housed by using the rail member 20 and the guide portion 28. However, in Embodiment 2, the rotating means 42 ) Is mounted to house the catalyst module S2.

Rotating means 42 such as a wheel or a roller is mounted on the angle frame 40 having the catalyst module S2 and angle frames 40 are provided on both sides of the space 18 of the chamber 12. [ The support plate 44 is fixed to both sides of the chamber 12 in such a manner that the support plate 44 is horizontally aligned with the lower end of the rim T of the receiving opening 14. [

However, the present invention is not limited to the structure in which the rotating means 42 is provided only in the angle frame 40. [ The rotary means 42 mounted on the angle frame 40 may be removed and the removed rotary means 42 may be installed along the support plate 44 or the rotary means 42 may be mounted on the angle plate 40 40 and the support plate 44, respectively.

On the other hand, since the angle frame 40 can be housed in the chamber 12 through the rod 48 having the hooking ring 46 formed thereon and the cylinder 50 that reciprocates the rod 48, The work load of the operator due to the storage of the catalyst module S2 can be reduced.

If the selective catalytic reduction unit having the retractable catalytic module constructed as described above is used, it is easy to carry and mount the catalytic module as mentioned above, and the selective use of the catalytic module is quick and easy, The service life of the individual catalysts can be prolonged and the boundary property can be enhanced.

While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Modifications or variations of the embodiments of the present invention will therefore be within the technical scope of the present invention.

10: reduction device 12: chamber
14: receiving opening 16: opening / closing member
18: space 20: rail member
S1, S2: catalyst module 22: individual catalyst
24, 40: angle frame 26: handle
28: guide portion T: rim portion
30: inlet 32: outlet
44: support plate 46: retaining ring
48: rod 50: cylinder

Claims

A receiving port formed on one surface of the chamber through which the exhaust gas passes to communicate with the inner space of the chamber;
An opening / closing member detachably coupled to the front surface of the receiving port;
And a catalyst module accommodated in the space of the chamber through the receiving port,
Wherein the catalyst module comprises an angle frame and a plurality of individual catalysts fixed in the angle frame.

The method according to claim 1,
Wherein the chamber is fixed to both sides of the chamber in a state in which the rail member is horizontally aligned with the receiving port, and a guide part slidably moved along the rail member is formed on the angle frame. And a selective catalytic reduction device.

The method according to claim 1,
Wherein the chamber is fixed to both sides of the chamber in a state in which the support plate is horizontally aligned with the receiving port, and rotation means is provided on either or both of the angle frame and the support plate. A catalytic converter for catalytic reduction;