Performance evaluation device for honeycomb type SCR (Selective Catalytic Reduction) denitration catalyst

Abstract

The utility model discloses a honeycomb type SCR (Selective Catalytic Reduction) denitration catalyst performance evaluation device which comprises a base, a turntable and an evaluation unit, the turntable is horizontally and rotatably arranged on the base, the evaluation unit comprises a pipe body I communicated with the output end of a tail gas generator, a pipe body II communicated with the input end of a flue gas detector and a butt joint pipe used for placing a honeycomb carrier, wherein the first pipe body and the second pipe body are coaxially arranged and located above and below the rotary disc respectively, and the butt joint pipe is fixed to the rotary disc in a vertically eccentric penetrating mode and can rotate to the position between the first pipe body and the second pipe body along with the rotary disc so as to be in butt joint with the first pipe body and the second pipe body. According to the catalyst evaluation device provided by the utility model, the plurality of butt-joint pipes are driven by the turntable to sequentially pass through the part between the pipe body I and the pipe body II, the butt-joint pipes between the pipe body I and the pipe body II can be used for butt-joint of the pipe body I and the pipe body II, the detection mode is simple, convenient and rapid, and the detection efficiency can be improved due to the arrangement of the plurality of butt-joint pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst evaluation, in particular to a honeycomb SCR denitration catalyst performance evaluation device. Background Art

[0002] Honeycomb SCR denitrification catalyst is a new type of waste gas purification material that is efficient, environmentally friendly and energy-saving. It is a new type of material developed based on modern nanotechnology and catalysts. It is widely used in various industrial production processes and can effectively remove NOx (nitrogen oxides) from waste gas. It is the most commonly used type of waste gas purification technology.

[0003] During the production process of the catalyst, it is usually necessary to spray the catalyst slurry onto the honeycomb carrier, and then take samples for catalytic evaluation inspection after drying to check whether it meets the purification standards.

[0004] The existing detection method is to fix the mounting part loaded with the honeycomb carrier between the exhaust gas generator and the smoke gas detector. After the detection is completed, the mounting part is removed from between the exhaust gas generator and the smoke gas detector for the next round of detection. The detection method is time-consuming, labor-intensive and inefficient. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a honeycomb SCR denitration catalyst performance evaluation device.

[0006] The utility model proposes a honeycomb SCR denitration catalyst performance evaluation device, comprising: a base, a turntable, and an evaluation unit, wherein the turntable is horizontally rotatably installed on the base, and the evaluation unit comprises: a tube body one connected to the output end of the exhaust generator, a tube body two connected to the input end of the smoke detector, and a butt joint pipe for placing a honeycomb carrier, wherein the tube body one and the tube body two are coaxially arranged and respectively located above and below the turntable, and the butt joint pipe is eccentrically penetrated and fixed on the turntable along a vertical direction and can rotate with the turntable to between the tube body one and the tube body two to butt joint the tube body one and the tube body two.

[0007] Preferably, the lower inner wall of the butt-joint tube has a supporting surface for supporting the honeycomb carrier placed therein, and the supporting surface is inclined downward toward the axial direction of the butt-joint tube.

[0008] Preferably, there are multiple butt joint pipes, and the multiple butt joint pipes are distributed in a ring array with the axis of the turntable as the center.

[0009] The utility model proposes a honeycomb SCR denitration catalyst performance evaluation device, wherein a tube body 1 comprises: a first tube body portion fixedly connected to an output end of an exhaust gas generator, a second tube body portion sealingly and slidingly sleeved with the first tube body portion, and a first cylinder, wherein the first cylinder is fixed on the first tube body portion and can drive the first tube body portion downward to abut against the top end wall of the butt tube.

[0010] The utility model proposes a honeycomb SCR denitration catalyst performance evaluation device, wherein the second tube body comprises: a third tube body portion fixedly connected to the input end of the smoke detector, a fourth tube body portion sealingly and slidingly sleeved with the third tube body portion, and a second cylinder, wherein the second cylinder is fixed on the third tube body portion and can drive the fourth tube body portion upward to abut against the bottom end wall of the butt tube.

[0011] The utility model provides a honeycomb type SCR denitration catalyst performance evaluation device, which also includes a motor for driving the turntable to rotate.

[0012] The catalyst evaluation device proposed by the utility model has a turntable driving the butt joint tube to rotate around its axis. When the turntable rotates to the point where the butt joint tube is butted against tube body one and tube body two, the exhaust gas generated by the exhaust generator passes through tube body one, the honeycomb carrier in the butt joint tube and tube body two and then enters the smoke detector for detection and evaluation. When the turntable rotates to the point where it is staggered with tube body one and tube body two, the top opening of the butt joint tube is in an open state so that the honeycomb carrier can be placed in the butt joint tube or the honeycomb carrier in the butt joint tube can be taken out after being evaluated. The detection method is simple and quick, and the arrangement of multiple butt joint tubes can improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the overall structure of a honeycomb SCR denitration catalyst performance evaluation device proposed in the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in FIG.

[0015] 1. Base; 2. Turntable; 3. Tube body 1; 4. Tube body 2; 5. Butt joint tube; 6. First sealed tube; 7. Second sealed tube; 8. Exhaust gas generator; 9. Smoke detector; 10. Honeycomb carrier. DETAILED DESCRIPTION

[0016] Reference Figure 1The utility model proposes a honeycomb SCR denitration catalyst performance evaluation device, comprising: a base 1, a turntable 2, and an evaluation unit, wherein the turntable 2 is horizontally rotatably installed on the base 1, and the evaluation unit comprises: a tube body 3 connected to the output end of the exhaust generator 8, a tube body 2 4 connected to the input end of the smoke detector 9, and a butt joint pipe 5 for placing a honeycomb carrier 10, wherein the tube body 1 3 and the tube body 2 4 are coaxially arranged and respectively located above and below the turntable 2, and the butt joint pipe 5 is eccentrically penetrated and fixed on the turntable 2 along the vertical direction and can rotate with the turntable 2 to between the tube body 1 3 and the tube body 2 4 to butt joint the tube body 1 3 and the tube body 2 4.

[0017] During detection, first rotate the turntable 2 so that the butt joint tube 5 is staggered with the tube body 1 3 and the tube body 2 4, and the top opening of the butt joint tube 5 is in an open state to facilitate the placement of the honeycomb carrier 10 coated with catalyst slurry. After the honeycomb carrier 10 is placed in the butt joint tube 5, turn the turntable 2 to the position where the butt joint tube 5 is coaxially docked with the tube body 1 3 and the tube body 2 4, and then start the exhaust gas generator 8 and the smoke gas detector 9. The exhaust gas generated by the exhaust gas generator 8 enters the butt joint tube 5 through the tube body 1 3, and the exhaust gas passes through the honeycomb carrier 10 and then through the tube body 2 4 to enter the smoke gas detector 9 for detection.

[0018] In the above embodiment, the lower inner wall of the butt tube 5 has a supporting surface 51 which can support the honeycomb carrier 10 placed therein, and the supporting surface 51 is inclined downward in the axial direction of the butt tube 5, and the supporting surface 51 is trumpet-shaped and can be used to guide the exhaust gas, and the supporting surface 51 linearly supports the outer wall of the honeycomb carrier 10 to prevent the supporting surface 51 from being too wide and blocking some through holes on the honeycomb carrier 10, thereby affecting the evaluation results of the catalyst.

[0019] In order to improve the evaluation efficiency of the catalyst and improve the automation of the evaluation process, there are multiple docking tubes 5, and the multiple docking tubes 5 are distributed in a ring array with the axis of the turntable 2 as the center, and also include a motor for driving the turntable 2 to rotate.

[0020] It should be further explained that, in order to improve the sealing performance between the tube body 3 and the butt tube 5, the utility model also includes a first sealing tube 6 and a first cylinder. The first sealing tube 6 is sealingly and slidably connected to the tube body 3. The first cylinder is fixed on the tube body 3 and can drive the first sealing tube 6 downward to abut against the top wall of the turntable 2.

[0021] In order to improve the butt sealing between the pipe body 2 4 and the butt pipe 5, the utility model further comprises a second sealing pipe 7 and a second cylinder. The second sealing pipe 7 is sealingly and slidably connected to the pipe body 2 4. The second cylinder is fixed on the pipe body 2 4 and can drive the second sealing pipe 7 upward to abut against the bottom wall of the turntable 2. For details, refer to Figure 2 .

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A honeycomb SCR denitration catalyst performance evaluation device, characterized in that: include: Base (1); A turntable (2), the turntable (2) is horizontally rotatably mounted on the base (1); The evaluation unit comprises: a tube body 1 (3) connected to the output end of an exhaust gas generator (8), a tube body 2 (4) connected to the input end of a smoke detector (9), and a butt joint tube (5) for placing a honeycomb carrier (10); the tube body 1 (3) and the tube body 2 (4) are coaxially arranged and respectively located above and below a rotating disk (2); the butt joint tube (5) is vertically eccentrically penetrated and fixed on the rotating disk (2) and can rotate with the rotating disk (2) to between the tube body 1 (3) and the tube body 2 (4) to butt joint the tube body 1 (3) and the tube body 2 (4).

2. A honeycomb SCR denitration catalyst performance evaluation device according to claim 1, characterized in that: The lower inner wall of the butt-joint tube (5) has a supporting surface (51) capable of supporting the honeycomb carrier (10) placed inside the butt-joint tube, and the supporting surface (51) is inclined downward in the axial direction of the butt-joint tube (5).

3. A honeycomb SCR denitration catalyst performance evaluation device according to claim 2, characterized in that: There are multiple butt joint pipes (5), and the multiple butt joint pipes (5) are distributed in a ring array with the axis of the turntable (2) as the center.

4. A honeycomb SCR denitration catalyst performance evaluation device according to claim 1, characterized in that: The first tube body (3) comprises: a first tube body portion (31) fixedly connected to the output end of the exhaust gas generator (8), a second tube body portion (32) sealingly and slidably sleeved with the first tube body portion (31), and a first cylinder, wherein the first cylinder is fixed to the first tube body portion (31) and can drive the first tube body portion (31) downward to abut against the top end wall of the butt tube (5).

5. A honeycomb SCR denitration catalyst performance evaluation device according to claim 4, characterized in that: The second tube body (4) comprises: a third tube body portion (41) fixedly connected to the input end of the smoke detector (9), a fourth tube body portion (42) sealingly and slidably sleeved with the third tube body portion (41), and a second cylinder, wherein the second cylinder is fixed on the third tube body portion (41) and can drive the fourth tube body portion (42) upward to abut against the bottom end wall of the butt tube (5).

6. A honeycomb SCR denitration catalyst performance evaluation device according to claim 1, characterized in that: It also includes a motor for driving the turntable (2) to rotate.

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