SCR DeNOx Catalyst Drag Reduction Module Box
By designing the SCR denitrification catalyst drag reduction module box, the flue gas flow is optimized by the placement position of the deflector plate and the catalyst body, the problem of edge and corner wear of the catalyst module is solved, and more efficient denitrification effect and catalyst protection are achieved.
Patent Information
- Application Number
- CN202323540456.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2033-12-25
AI Technical Summary
In the SCR flue system, the flue and wear of the edges and corners of the catalyst module due to the rapid wind speed, affecting the denitrification efficiency.
A SCR denitrification catalyst drag reduction module box is designed, including a main board, side board, support mechanism, filter board, deflector board and catalyst body. Through the placement of the deflector board and catalyst body, the flue gas flow is optimized, the wear of the catalyst end face is reduced, and dust and impurities are filtered through the filter board.
It effectively reduces the wear of the catalyst end surface, improves the denitrification efficiency, and protects the catalyst and extends its service life through the setting of the filter plate.
Smart Images
Figure CN222694430U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of denitration catalyst production, and specifically relates to an SCR denitration catalyst drag reduction module box. Background Art
[0002] Nitrogen oxides (NOX including NO, NO2 and other compounds) are one of the main pollutants causing air pollution. The SCR system is an effective method to control NOX. The catalyst is the core of the SCR denitrification reaction. Its quality and performance are directly related to the denitrification efficiency. Therefore, the module box, as a protective device for the SCR catalyst, plays a vital role in maintaining the shape of the catalyst.
[0003] There are three main types of denitrification catalysts currently used in industry: plate type, honeycomb type and corrugated type. Among them, the honeycomb type is more widely used, mainly by arranging the SCR catalyst units in a certain way in the catalyst module to form a catalyst emission array, and then stacking the array in layers as required to achieve the purpose of flue gas denitrification;
[0004] As a protective device for the SCR catalyst, the module box plays a vital role in maintaining the shape of the catalyst. Since the SCR flue system has multiple variable cross-sections and turning areas, without interference, not only will the flow velocity distribution be uneven, but the excessive flue gas incident angle will also aggravate the erosion and wear of the corners of the catalyst module. Utility Model Content
[0005] In view of this, the utility model provides an SCR denitration catalyst drag reduction module box, which is used to solve the technical problem of catalyst wear due to excessive wind speed.
[0006] The utility model is achieved in this way:
[0007] The utility model provides an SCR denitration catalyst drag reduction module box, which includes a main board, side panels, a supporting mechanism, a filter plate, a guide plate and a catalyst body. The main board is fixedly connected to the side panels by angle irons and bolts. The supporting mechanism is arranged at the lower part of the main board and the side panels, the filter plate is arranged at the upper part of the main board and the side panels, the filter plate is fixedly connected to the main board and the side panels respectively, the catalyst body is vertically arranged on the supporting mechanism, the guide plates are fixedly connected on both sides of the catalyst body, and two adjacent guide plates are fixedly connected by supporting strips.
[0008] The technical effects of the SCR denitration catalyst drag reduction module box provided by the utility model are as follows: through the placement of the guide plate and the catalyst body, when the catalyst flue is ventilated, two-thirds of the end face of the windward end of the catalyst faces the wind, and a channel is set on the end face of the remaining one-third, so that a part of the flue gas can be quickly diverted to the second layer of catalyst to pass the flue gas, so as to reduce the wear on the end face of the first layer of catalyst. The second layer of catalyst is staggered with the first layer of catalyst, and the tester can pass all the catalysts. By setting the filter plate, it is convenient to filter out dust and impurities to prevent affecting the use effect of the catalyst.
[0009] On the basis of the above technical solution, the SCR denitration catalyst drag reduction module box of the utility model can also be improved as follows:
[0010] Furthermore, the guide plate includes a connecting vertical plate and a bending plate, the connecting vertical plate is fixedly connected to the bending plate, and the angle formed by the connecting vertical plate and the bending plate is an obtuse angle.
[0011] The beneficial effect of adopting the above further solution is: by providing a guide plate, it is convenient to guide the flue gas and reduce the wear on the catalyst end surface.
[0012] Furthermore, the number of the guide plates is set to be multiple, and every two guide plates on the same horizontal line are set in a cone shape. Two adjacent connecting vertical plates along the horizontal line form the expanded end of the cone guide plate, and two adjacent bent plates form the contracted end of the cone guide plate.
[0013] The beneficial effect of adopting the above further solution is: the guide plate is installed according to the number and size of the catalysts, so that the end surface of each catalyst placed in the drag reduction mold box can reduce wear.
[0014] Furthermore, the bending plate of one of the guide plates along the vertical line is fixedly connected to the connecting vertical plate of another guide plate.
[0015] Furthermore, the support mechanism includes a first support vertical rod, a support cross rod, a second support rod and a third support rod, the first support vertical rod is fixedly connected to the main board, the support cross rod is fixedly connected to the side panel, the first support rod and the support cross rod are cross-arranged, the second support rod and the third support rod are also fixedly connected to the main board, and the second support rod is symmetrically arranged on both sides of the third support rod.
[0016] The beneficial effect of adopting the above further solution is that the catalyst placed on the first supporting vertical rod and the supporting horizontal rod of the supporting mechanism can be supported easily by providing the supporting mechanism.
[0017] Furthermore, the second support rod is arranged at an angle.
[0018] The beneficial effects of adopting the above further solution are: increasing stability and increasing load-bearing capacity.
[0019] Furthermore, fiber paper is pasted on the bottom of the catalyst body.
[0020] The beneficial effect of adopting the above further solution is: by providing the fiber paper, it is convenient to reduce the wear of the catalyst by the first supporting vertical rod and the supporting horizontal rod placed at the bottom, thereby protecting the catalyst.
[0021] Furthermore, the support bars and guide plates are made of iron.
[0022] Furthermore, the number of the main board and the side board is set to two, and the material of both is iron.
[0023] Compared with the prior art, the beneficial effects of the SCR denitration catalyst drag reduction module box provided by the utility model are as follows: through the placement of the guide plate and the catalyst body, when the catalyst flue is ventilated, two-thirds of the end face of the windward end of the catalyst faces the wind, and a channel is set on the end face of the remaining one-third, so that a part of the flue gas can be quickly diverted to the second layer of catalyst to pass through the flue gas, so as to reduce the wear on the end face of the first layer of catalyst. The second layer of catalyst is staggered with the first layer of catalyst, and the tester can pass all the catalysts; by setting up a supporting mechanism, it is convenient to support the catalyst placed on the first supporting vertical rod and the supporting horizontal rod of the supporting mechanism, and by setting up a filter plate, it is convenient to filter out dust and impurities to prevent affecting the effectiveness of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a general schematic diagram of the SCR denitration catalyst drag reduction module box provided by the utility model;
[0025] Figure 2 This is a diagram of the guide plate and catalyst structure of the SCR denitration catalyst drag reduction module box provided by the utility model;
[0026] Figure 3 A schematic diagram of the bottom support mechanism of the SCR denitration catalyst drag reduction module box provided by the utility model;
[0027] Figure 4 This is a schematic diagram of the structure of the guide plate of the SCR denitration catalyst drag reduction module box provided by the utility model;
[0028] In the accompanying drawings, the list of components represented by each number is as follows: 10, main board; 20, side board; 31, first support vertical rod; 32, support horizontal rod; 33, second support rod; 34, third support rod; 40, fiber paper; 50, support bar; 60, filter plate; 70, guide plate; 71, connecting vertical plate; 72, bending plate; 73, third connecting plate; 80, catalyst body. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0034] like Figure 1-4As shown, the utility model provides an SCR denitration catalyst drag reduction module box, which includes a main board 10, a side panel 20, a supporting mechanism, a filter plate 60, a guide plate 70 and a catalyst body 80. The main board 10 and the side panel 20 are fixedly connected by angle irons and bolts. The supporting mechanism is arranged at the lower part of the main board 10 and the side panel 20, and the filter plate 60 is arranged at the upper part of the main board 10 and the side panel 20. The filter plate 60 is fixedly connected to the main board 10 and the side panel 20 respectively. The catalyst body 80 is vertically arranged on the supporting mechanism, and the guide plates 70 are fixedly connected on both sides of the catalyst body 80, and the two adjacent guide plates 70 are fixedly connected by support bars 50.
[0035] The catalyst body 80 itself has honeycomb-shaped voids.
[0036] Optionally, in the above technical solution, the guide plate 70 includes a connecting vertical plate 71 and a bending plate 72, the connecting vertical plate 71 and the bending plate 72 are fixedly connected, and the angle formed by the connecting vertical plate 71 and the bending plate 72 is an obtuse angle.
[0037] Optionally, in the above technical solution, the number of guide plates 70 is set to be multiple, and every two guide plates 70 on the same horizontal line are set in a cone shape, and the two adjacent connecting vertical plates 71 along the horizontal line form the flared end of the conical guide plate 70, and the two adjacent bending plates 72 form the conical guide plate (70) The contracted end.
[0038] Optionally, in the above technical solution, the bending plate 72 of one guide plate 70 along the vertical line is fixedly connected to the connecting vertical plate 71 of another guide plate 70 .
[0039] Optionally, in the above technical solution, the support mechanism includes a first support vertical rod 31, a support cross rod 32, a second support rod 33 and a third support rod 34, the first support vertical rod 31 is fixedly connected to the main board 10, the support cross rod 32 is fixedly connected to the side panel 20, the first support rod 31 and the support cross rod 32 are cross-arranged, and the second support rod 33 and the third support rod 34 are also fixedly connected to the main board 10, and the second support rod 33 is symmetrically arranged on both sides of the third support rod 34.
[0040] Optionally, in the above technical solution, the second support rod 33 is arranged to be inclined.
[0041] Optionally, in the above technical solution, fiber paper 40 is adhered to the bottom of the catalyst body 80 .
[0042] Optionally, in the above technical solution, the support bar 50 and the guide plate 70 are both made of iron.
[0043] Optionally, in the above technical solution, the number of the main board 10 and the number of the side boards 20 are both set to two, and the materials are both iron.
[0044] Working principle: When in use, the two side panels 20 and the two main panels 10 are fixed by bolts and angle irons, and the first support vertical rod 31, the support horizontal rod 32, the second support rod 33 and the third support rod 34 are fixedly connected at the bottom of the main panel 10 and the side panel 20 to facilitate the support of the catalyst body 80. The bottom of the catalyst is fixed with fiber paper and placed on the support mechanism at the bottom of the main panel 10 and the side panel 20, and then the guide plate 70 is placed on both sides of each catalyst body 80. The connecting vertical plates 71 of each catalyst body 80 are connected by support bars 50. Fixedly connected, each catalyst body 80 is arranged in layers and intervals, multiple guide plates 70 are connected to each other, and the filter plate 60 is fixedly connected to the main plate 10 and the side plate 20 on the opposite side of the supporting mechanism. Then the assembled device is placed in the flue, and the entire module box is suspended in the air. The flue gas enters the interior from the filter plate 60 to filter dust and impurities. The upper two-thirds of the end face of the windward end of the flue gas is blown to the wind, and the remaining one-third of the end face enters the second-layer catalyst channel through the guide plate 70 to divert the flue gas of the first layer, thereby reducing the wear on the end face of the first-layer catalyst.
[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. SCR denitration catalyst drag reduction module box, characterized in that: The catalyst body (80) comprises a main board (10), a side board (20), a supporting mechanism, a filter plate (60), a guide plate (70) and a catalyst body (80); the main board (10) and the side board (20) are fixedly connected by bolts; the supporting mechanism is arranged at the lower part of the main board (10) and the side board (20); the filter plate (60) is arranged at the upper part of the main board (10) and the side board (20) and is fixedly connected to the main board (10) and the side board (20) respectively; the catalyst body (80) is vertically placed on the supporting mechanism; the guide plates (70) are fixedly connected to both sides of the catalyst body (80); and two adjacent guide plates (70) are fixedly connected by supporting bars (50).
2. The SCR denitration catalyst drag reduction module box according to claim 1, characterized in that: The guide plate (70) comprises a connecting vertical plate (71) and a bending plate (72); the connecting vertical plate (71) is fixedly connected to the bending plate (72); and the connecting vertical plate (71) and the bending plate (72) form an angle.
3. The SCR denitration catalyst drag reduction module box according to claim 2, characterized in that: The number of the guide plates (70) is set to be multiple, and two adjacent guide plates (70) on the same horizontal line are arranged in a cone shape, and two adjacent connecting vertical plates (71) along the horizontal line form the expanded end of the cone-shaped guide plate (70), and two adjacent bent plates (72) form the contracted end of the cone-shaped guide plate (70).
4. The SCR denitration catalyst drag reduction module box according to claim 3, characterized in that: One of the bent plates (72) along the vertical line is fixedly connected to another of the connecting vertical plates (71).
5. The SCR denitration catalyst drag reduction module box according to claim 1, characterized in that: The support mechanism comprises a first support rod (31), a support cross rod (32), a second support rod (33) and a third support rod (34); the first support rod (31), the second support rod (33) and the third support rod (34) are all fixedly connected to the main board (10); the support cross rod (32) is fixedly connected to the side plate (20); the first support rod (31) and the support cross rod (32) are cross-arranged; the second support rod (33) is symmetrically arranged on both sides of the third support rod (34).
6. The SCR denitration catalyst drag reduction module box according to claim 5, characterized in that: The second support rod (33) is arranged obliquely.
7. The SCR denitration catalyst drag reduction module box according to claim 1, characterized in that: Fiber paper (40) is adhered to the bottom of the catalyst body (80).
8. The SCR denitration catalyst drag reduction module box according to claim 1, characterized in that: The support bar (50) and the guide plate (70) are made of iron.
9. The SCR denitration catalyst drag reduction module box according to claim 1, characterized in that: The number of the main board (10) and the number of the side boards (20) are both set to two, and both are made of iron.
10. The SCR denitration catalyst drag reduction module box according to claim 2, characterized in that: The included angle is an obtuse angle.