Sealing device between denitration catalyst modules

Abstract

The utility model discloses a sealing device between denitration catalyst modules, which belongs to the field of sealing devices and comprises a plurality of module bodies and a sealing mechanism. A cross-shaped sealing ring in a first embedding groove can play a sealing role on a node gap part, a cross-shaped inner concave plate can be prevented from falling into the module bodies under the action of an L-shaped limiting plate, and after the concave plate is placed in a gap between the adjacent module bodies, the cross-shaped inner concave plate can be prevented from falling into the module bodies. A gap part can be sealed through a sealing frame strip in a third embedding groove, the concave plate can be prevented from falling between the module bodies under the action of a side plate, and the side plate and an L-shaped limiting plate can be fixed together through a bolt and a nut; and an L-shaped sealing strip mounted in a second embedding groove in the bottom surface of the L-shaped limiting plate is matched with a strip-shaped sealing strip mounted in a fourth embedding groove in the bottom surface of the upper side plate, so that the external sealing between the module bodies can be further realized.

Description

Technical Field

[0001] The utility model relates to the field of sealing devices, in particular to a sealing device between denitration catalyst modules. Background Art

[0002] The flue gas SCR denitrification technology is a technology in which the reducing agent undergoes a reduction reaction on the active surface of the catalyst to remove NOx from the flue gas. The flue gas after desulfurization and dust removal is fully mixed with the reducing agent (ammonia) added by the ammonia injection device. The mixed flue gas enters the denitrification catalyst layer, where a denitrification reaction occurs under the action of the catalyst to remove NOx; the purified clean flue gas is merged into the existing clean flue gas pipeline through the new flue and discharged through the chimney. Ammonia escape is controlled at no more than 3ppm. Taigang's sintering flue gas ultra-low emission adopts the adsorption tower desulfurization + SCR denitrification process. The emission of NOX in sintering flue gas needs to meet the national emission standard of no more than 50mg / m3.

[0003] In the prior art, in order to prevent ammonia from escaping from the gaps between the modules and thus reducing the denitration efficiency, a sealing device is usually provided between the denitration catalyst modules when the denitration catalyst modules are in use. However, since most of the existing sealing devices are welded and fixed between the modules by steel bars by electric welding to achieve sealing, this sealing method not only leads to poor sealing between the denitration catalyst modules, but also slows down the construction efficiency. At the same time, it is difficult to replace the denitration catalyst modules after the service life of the denitration catalyst modules expires, and the steel bars need to be cut off with the help of cutting equipment. After the cutting, the steel bars cannot be used again, which increases the cost of installing the sealing device. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing device between denitration catalyst modules, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sealing device between denitration catalyst modules comprises a plurality of module bodies, wherein sealing mechanisms are respectively arranged between the plurality of module bodies, and the sealing mechanisms comprise a cross inner concave plate, a cross sealing ring, an L-shaped limiting plate, an L-shaped sealing strip, a concave plate, a sealing frame strip, a side plate and a strip sealing strip, wherein the cross sealing ring is fixedly connected in a first embedding groove provided on the outer wall of the cross inner concave plate, and the L-shaped limiting plate is fixedly connected on four sides of the top surface of the cross inner concave plate, the L-shaped sealing strip is fixedly connected in a second embedding groove provided on the bottom surface of the L-shaped limiting plate, the sealing frame strip is fixedly connected in a third embedding groove provided on the outer wall of the concave plate, and the side plate is fixedly connected on both sides of the top surface of the concave plate, the strip sealing strip is fixedly connected in a fourth embedding groove provided on the bottom surface of the side plate, and the side plate and the L-shaped limiting plate are fixedly connected together by bolts and nuts.

[0007] Preferably, a first cross-ring-shaped embedding groove is provided at the lower portion of the outer wall of the cross inner concave plate, and the cross sealing ring is fixedly installed in the groove of the first embedding groove in an embedded manner.

[0008] Preferably, L-shaped limiting plates are fixedly installed on the four sides of the top surface of the cross concave plate, and the bottom surface of the L-shaped limiting plate is provided with an L-shaped second embedding groove, and the L-shaped sealing strip is fixedly installed in the groove of the second embedding groove in an embedded manner.

[0009] Preferably, a frame-shaped third embedding groove is provided below the outer wall of the concave plate, and the sealing frame strip is fixedly installed in the groove of the third embedding groove in an embedded manner.

[0010] Preferably, side plates are fixedly mounted on both sides of the top surface of the concave plate, and a fourth strip-shaped embedding groove is provided on the bottom surface of the side plate, and the strip-shaped sealing strip is fixedly mounted in the groove of the fourth embedding groove in an embedded manner.

[0011] Preferably, connecting blocks are fixedly installed on both sides of the top surface of the L-shaped limiting plate and the side plate, and connecting holes are opened on the side walls of the connecting blocks. The bolts are inserted into the connecting holes, and the nuts are threadedly connected to the bolts.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the sealing mechanism is provided, after the cross inner concave plate is placed in the cross-shaped node part formed between the module bodies, the cross sealing ring in the first embedding groove can seal the node gap part, and under the action of the L-shaped limiting plate, the cross inner concave plate can be prevented from falling between the module bodies, and after the concave plate is placed in the gap between adjacent module bodies, the sealing frame strip in the third embedding groove can seal the gap part, and under the action of the side plate, the concave plate can be prevented from falling between the module bodies, and the side plate and the L-shaped limiting plate can be fixedly connected together by bolts and nuts, so that the concave plate and the cross inner The concave plates are fixedly connected together so that the L-shaped sealing strip installed in the second embedding groove on the bottom surface of the L-shaped limiting plate and the strip sealing strip installed in the fourth embedding groove on the bottom surface of the upper side plate can further seal between the module bodies, thereby performing internal and external double sealing treatments between the module bodies, and the sealing performance between several module bodies during use can be greatly improved, and the sealing mechanism can be quickly installed between the module bodies through splicing and combination. While improving the construction and installation efficiency, it is convenient to quickly dismantle the sealing mechanism when the module body is replaced later, and the sealing mechanism can be repeatedly used to achieve the purpose of reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structural disassembly of the cross inner concave plate of the sealing mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the structural disassembly of the concave plate of the sealing mechanism of the utility model;

[0017] Figure 4 It is a schematic cutaway diagram of the overall structure of the utility model.

[0018] In the figure: 1. module body; 2. sealing mechanism; 3. cross inner concave plate; 4. first embedded groove; 5. cross sealing ring; 6. L-shaped limit plate; 7. second embedded groove; 8. L-shaped sealing strip; 9. connecting block; 10. connecting hole; 11. bolt; 12. nut; 13. concave plate; 14. third embedded groove; 15. sealing frame strip; 16. side plate; 17. fourth embedded groove; 18. strip sealing strip. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1 - Figure 4 As shown, a sealing device between denitration catalyst modules comprises a plurality of module bodies 1, and sealing mechanisms 2 are respectively arranged between the plurality of module bodies 1, and the sealing mechanism 2 comprises a cross inner concave plate 3, a cross sealing ring 5, an L-shaped limiting plate 6, an L-shaped sealing strip 8, a concave plate 13, a sealing frame strip 15, a side plate 16 and a strip sealing strip 18, the cross sealing ring 5 is fixedly connected in a first embedding groove 4 opened on the outer wall of the cross inner concave plate 3, and the L-shaped limiting plate 6 is fixedly connected to the four sides of the top surface of the cross inner concave plate 3, the L-shaped sealing strip 8 is fixedly connected in a second embedding groove 7 opened on the bottom surface of the L-shaped limiting plate 6, the sealing frame strip 15 is fixedly connected in a third embedding groove 14 opened on the outer wall of the concave plate 13, and the side plate 16 is fixedly connected to both sides of the top surface of the concave plate 13, the strip sealing strip 18 is fixedly connected in a fourth embedding groove 17 opened on the bottom surface of the side plate 16, and the side plate 16 and the L-shaped limiting plate 6 are fixedly connected together by bolts 11 and nuts 12.

[0021] like Figure 1 - Figure 4As shown, in this embodiment, in order to improve the sealing performance of several module bodies 1 when in use through the sealing mechanism 2, and to facilitate the disassembly and assembly of the sealing mechanism 2 between the module bodies 1, a cross ring-shaped first embedding groove 4 is opened at the lower part of the outer wall of the cross inner concave plate 3, and the cross sealing ring 5 is fixedly installed in the groove of the first embedding groove 4 in an embedded manner, and L-shaped limiting plates 6 are fixedly installed on the four sides of the top surface of the cross inner concave plate 3, and an L-shaped second embedding groove 7 is opened on the bottom surface of the L-shaped limiting plate 6, and the L-shaped sealing strip 8 is fixedly installed in the groove of the second embedding groove 7 in an embedded manner. A frame-shaped third embedding groove 14 is provided below the wall, and a sealing frame strip 15 is fixedly installed in the groove of the third embedding groove 14 in an embedded manner. Side plates 16 are fixedly installed on both sides of the top surface of the concave plate 13, and a strip-shaped fourth embedding groove 17 is provided on the bottom surface of the side plate 16. A strip-shaped sealing strip 18 is fixedly installed in the groove of the fourth embedding groove 17 in an embedded manner. Connecting blocks 9 are fixedly installed on both sides of the top surface of the L-shaped limiting plate 6 and the side plate 16, and a connecting hole 10 is provided on the side wall of the connecting block 9. Bolts 11 are inserted and installed in the connecting holes 10, and nuts 12 are threadedly connected with the bolts 11;

[0022] The specific use principle of the sealing mechanism 2 in conjunction with several module bodies 1 is as follows: after the cross concave plate 3 is placed in the cross node portion formed between several module bodies 1, the L-shaped limit plates 6 installed on the four sides of the top surface of the cross concave plate 3 can prevent the cross concave plate 3 from falling between the module bodies 1, and the cross sealing ring 5 installed in the cross ring-shaped first embedding groove 4 opened below the outer wall of the cross concave plate 3 will be tightly attached to the inner wall of the gap formed between the four adjacent module bodies 1, and the node portion can be sealed. Then, the concave plates 13 are placed two by two. The concave plate 13 is placed between adjacent module bodies 1 and on the four sides of the cross inner concave plate 3. The concave plate 13 can be prevented from falling into the module bodies 1 under the action of the side plates 16 installed on both sides of the top surface, and the sealing frame strip 15 installed in the frame-shaped third embedding groove 14 opened below the outer wall of the concave plate 13 is tightly attached to both sides of the inner wall of the gap between the adjacent module bodies 1. At the same time, the L-shaped sealing strip 8 installed in the L-shaped second embedding groove 7 opened on the bottom surface of the L-shaped limiting plate 6 cooperates with the strip sealing strip 18 installed in the strip-shaped fourth embedding groove 17 opened on the bottom surface of the upper side plate 16 to be able to be in the module body 1 The top surface between them further plays a secondary sealing role for the gap. Finally, the bolts 11 are inserted into the connection holes 10 opened on the front end walls of the connection blocks 9 installed on both sides of the top surface of the cross inner concave plate 3 and the top surface of the side plates 16, and then the nuts 12 are screwed into the bolts 11 and threadedly connected with them. The concave plate 13 and the cross inner concave plate 3 can be spliced ​​and assembled together, and the cross sealing ring 5 installed on the cross inner concave plate 3 and the sealing frame strip 15 installed on the concave plate 13 are tightly fitted together to ensure that the connection between the concave plate 13 and the cross inner concave plate 3 The sealing performance is improved, and thus the sealing effect of several module bodies 1 when in use can be improved by performing double sealing treatment on the inside and outside of the gap formed between the module bodies 1, and several cross inner concave plates 3 and concave plates 13 are connected and combined and spliced ​​together by bolts 11 and nuts 12, so that the device can be quickly installed and fixed in the gap of the module body 1, so that after the service life of the module body 1 expires, the sealing mechanism 2 can be quickly disassembled and the module body 1 can be replaced, and the sealing mechanism 2 can be used repeatedly to achieve the purpose of reducing the use cost.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced by equivalents, or some of its technical features may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing device between denitration catalyst modules, comprising a plurality of module bodies (1), characterized in that: A sealing mechanism (2) is respectively provided between the plurality of module bodies (1), and the sealing mechanism (2) comprises a cross inner concave plate (3), a cross sealing ring (5), an L-shaped limiting plate (6), an L-shaped sealing strip (8), a concave plate (13), a sealing frame strip (15), a side plate (16) and a strip sealing strip (18), the cross sealing ring (5) is fixedly connected to a first embedding groove (4) provided on the outer wall of the cross inner concave plate (3), and the L-shaped limiting plate (6) is fixedly connected to the four sides of the top surface of the cross inner concave plate (3), and the L-shaped The sealing strip (8) is fixedly connected to a second embedding groove (7) provided on the bottom surface of the L-shaped limiting plate (6), the sealing frame strip (15) is fixedly connected to a third embedding groove (14) provided on the outer wall of the concave plate (13), and the side plate (16) is fixedly connected to both sides of the top surface of the concave plate (13), the strip-shaped sealing strip (18) is fixedly connected to a fourth embedding groove (17) provided on the bottom surface of the side plate (16), and the side plate (16) and the L-shaped limiting plate (6) are fixedly connected together by bolts (11) and nuts (12).

2. The sealing device between denitration catalyst modules according to claim 1, characterized in that: A cross-ring-shaped first embedding groove (4) is provided at the lower portion of the outer wall of the cross inner concave plate (3), and a cross sealing ring (5) is fixedly installed in the groove of the first embedding groove (4) in an embedded manner.

3. The sealing device between denitration catalyst modules according to claim 2, characterized in that: L-shaped limiting plates (6) are fixedly installed on the four sides of the top surface of the cross inner concave plate (3), and the bottom surface of the L-shaped limiting plate (6) is provided with an L-shaped second embedding groove (7), and the L-shaped sealing strip (8) is fixedly installed in the groove of the second embedding groove (7) in an embedded manner.

4. The sealing device between denitration catalyst modules according to claim 3, characterized in that: A frame-shaped third embedding groove (14) is provided below the outer wall of the concave plate (13), and the sealing frame strip (15) is fixedly installed in the groove of the third embedding groove (14) in an embedded manner.

5. The sealing device between denitration catalyst modules according to claim 4, characterized in that: Side plates (16) are fixedly mounted on both sides of the top surface of the concave plate (13), and a fourth strip-shaped embedding groove (17) is provided on the bottom surface of the side plate (16). The strip-shaped sealing strip (18) is fixedly mounted in the groove of the fourth embedding groove (17) in an embedded manner.

6. The sealing device between denitration catalyst modules according to claim 5, characterized in that: The top surfaces of the L-shaped limiting plate (6) and the side plate (16) are respectively fixedly mounted with connection blocks (9), and the side walls of the connection blocks (9) are provided with connection holes (10), the bolts (11) are inserted and installed in the connection holes (10), and the nuts (12) are threadedly connected to the bolts (11).

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