CN210090397U - SCR denitration catalyst simulation reaction device - Google Patents
SCR denitration catalyst simulation reaction device Download PDFInfo
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- CN210090397U CN210090397U CN201920278521.1U CN201920278521U CN210090397U CN 210090397 U CN210090397 U CN 210090397U CN 201920278521 U CN201920278521 U CN 201920278521U CN 210090397 U CN210090397 U CN 210090397U
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Abstract
The utility model relates to a SCR denitration catalyst simulation reaction device. The utility model comprises a flue gas pipeline, an inlet bell mouth flue, a flue gas guiding device, a flue gas uniform distribution device, a monitoring port with a flue gas sampling function, a flue gas sealing gasket, a catalyst carrying vessel body, an outlet bell mouth flue and a hydraulic sealing device; flue gas seal gasket is all installed at the both ends of catalyst carrier boat body, and flue gas seal gasket is connected with the monitoring mouth, and flue gas equipartition device and export horn mouth flue all are connected with the monitoring mouth, and flue gas guiding device is connected with flue gas equipartition device, and entry horn mouth flue is connected with flue gas guiding device, and hydraulic seal device is connected with export horn mouth flue, and entry horn mouth flue and hydraulic seal device all are connected with flue gas pipeline. The method meets the requirements of various actual catalyst arrangement modes, so that the performance of the catalyst can be effectively detected, the detection quality is ensured, and the effectiveness and the accuracy of the SCR denitration catalyst detection are ensured.
Description
Technical Field
The utility model relates to a SCR denitration catalyst simulation reaction device.
Background
The SCR denitration catalyst simulation reaction device is used for detecting the performance of a denitration catalyst, the simulation reaction device needs to simulate the actual operation condition of the catalyst, and meanwhile, the gas sealing performance and the gas flow uniformity in the reaction device need to be ensured, so that the performance result of the catalyst detected by the simulation reaction device can directly reflect the actual operation performance of the catalyst, and the catalyst simulation reaction device is the most important component for detecting the performance of the catalyst.
In view of this, patent document No. 201410196866.4 discloses a denitration catalyst detecting apparatus including a gas distribution system that supplies a mixed gas of N2, NO2, O2, SO2, and CO 2; a mixer for mixing the gases; a heater for heating the mixed gas; a reactor connected with NH3 and provided with a catalyst; the testing device is used for testing the temperature, the pressure, the flow and the content of each component of the simulated flue gas consisting of the mixed gas and NH 3; a control system for controlling the test device; the gas distribution system is connected with the mixer; the mixer is connected with the heater; the heater is connected with the reactor, and the testing device is respectively connected with the heater and the reactor.
The catalyst simulation reaction device not only ensures the gas tightness and the gas flow uniform distribution performance of the reaction device, but also ensures that the linear speed, the surface speed and the airspeed of the catalyst are consistent with the actual operation condition, and simultaneously ensures convenient loading and unloading of the catalyst module, and finally ensures the requirement of actually detecting and analyzing a measuring point of a measuring hole for the performance of the catalyst, so that the quality of the SCR denitration catalyst simulation reaction device directly influences the detection quality of the performance of the catalyst.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable SCR denitration catalyst simulation reaction unit.
The utility model provides a technical scheme that above-mentioned problem adopted is: this SCR denitration catalyst simulation reaction device, its structural feature lies in: the device comprises a flue gas pipeline, an inlet bell mouth flue, a flue gas flow guide device, a flue gas uniform distribution device, a monitoring port with a flue gas sampling function, a flue gas sealing gasket, a catalyst carrier, an outlet bell mouth flue and a hydraulic sealing device; flue gas seal gasket is all installed at the both ends of catalyst carrier boat body, flue gas seal gasket is connected with the monitoring mouth, flue gas equipartition device and export horn mouth flue all are connected with the monitoring mouth, flue gas guiding device is connected with flue gas equipartition device, entry horn mouth flue is connected with flue gas guiding device, hydraulic seal device is connected with export horn mouth flue, entry horn mouth flue and hydraulic seal device all are connected with flue gas pipeline. The method meets the requirements of various actual catalyst arrangement modes, so that the performance of the catalyst can be effectively detected, the detection quality is ensured, and the effectiveness and the accuracy of the SCR denitration catalyst detection are ensured.
Further, the catalyst carrier is a plurality of, and a plurality of catalyst carriers are connected through the flue gas seal gasket.
Further, the number of the SCR denitration catalyst simulation reaction devices is multiple, and the multiple SCR denitration catalyst simulation reaction devices are connected through a flue gas pipeline.
Furthermore, the inlet bell mouth flue is made of stainless steel; the inlet section shape of the inlet bell-mouth flue and the outlet section shape of the inlet bell-mouth flue are both square; the inlet bell-mouth flue is characterized in that the inlet cross-sectional dimension of the inlet bell-mouth flue is 50mm to 100mm, the outlet cross-sectional dimension of the inlet bell-mouth flue is 155mm to 165mm, the length of the bell-mouth section flue gas flowing direction of the inlet bell-mouth flue is 150mm to 250mm, and the length of the straight section flue gas flowing direction of the inlet bell-mouth flue is 100mm to 200 mm.
Furthermore, the smoke guide device is made of stainless steel; the flue gas guiding device is arranged in a flue gas inlet bell mouth, the length of the flue gas flowing direction of the flue gas guiding device is L, the range of the L is 100-150 mm, the side length of the inlet section of the flue gas guiding device is D, the range of the L is 75-100 mm, the side length of the outlet section of the flue gas guiding device is D, and the inlet section of the flue gas guiding device is consistent with the outlet section of the inlet bell mouth flue.
Furthermore, an outlet of the flue gas flow guiding device is provided with a uniform outlet grid structure, and an inlet of the flue gas flow guiding device is provided with a uniform inlet grid structure; the center of the inlet grating structure is arranged in a square shape, and the side length of the inlet grating structure is d/3; the outlet grill structure has a size of D/m, m being a positive integer (m =1, 2, 3, 4 …); the inlet grill structure has a size d/3n, n being a positive integer (n =1, 2, 3, 4 …); the center of export grid structure is the loudspeaker grid structure that n squares were arranged, the four sides of loudspeaker grid structure all is parallel with loudspeaker mouth limit.
Further, the material of flue gas equipartition device is the stainless steel, the flue gas equipartition device is arranged in the straight section flue of entry horn mouth flue, flue gas equipartition device is 3 ~ 10mm along flue gas flow direction length, the cross sectional dimension of flue gas equipartition device is unanimous with the export cross sectional dimension of flue gas guiding device, the equipartition hole is evenly seted up to the cross-section of flue gas equipartition device, equipartition hole quantity is 6 x 6 ~ 12 x 12.
Further, the shape of the uniform distribution holes is regular octagon, regular hexagon, square, regular triangle, circle or ellipse.
Further, the material of the catalyst carrier is stainless steel, the cross section size of the catalyst carrier is consistent with the outlet cross section size of the outlet bell mouth flue, and the length of the catalyst carrier along the flue gas flowing direction is 1.2-1.7 m.
Further, another technical object of the present invention is to provide a simulation method for the SCR denitration catalyst simulation reactor.
The above technical object of the present invention can be achieved by the following technical solutions.
A simulation method of a simulation reaction device of an SCR denitration catalyst is characterized in that: the simulation method comprises the following steps: flue gas enters the inlet bell mouth flue from the flue gas pipeline, and is guided and uniformly distributed through the flue gas guiding device and the flue gas uniformly distributing device, so that the uniform distribution of the flue gas of the catalyst carrier is ensured, the flue gas in the catalyst carrier is reacted under the condition of a catalyst, the reacted flue gas is discharged into the flue gas pipeline through the outlet bell mouth flue, the catalyst carrier is sealed through a hydraulic sealing device by adopting a flue gas sealing gasket, and the components, the temperature, the flow rate and the static pressure of the flue gas are measured through the monitoring port.
Preferably, the length of the catalyst carrier in the flowing direction of the flue gas is 1.2-1.7 m.
Preferably, when a plurality of stages of catalyst carriers are combined, a layer of flue gas sealing gasket is arranged between the catalyst carriers of each stage.
Preferably, the material of the flue gas sealing gasket is high-carbon steel, and the flue gas sealing gasket is arranged at two ends of the catalyst carrier.
Preferably, the hydraulic sealing device is connected with an external hydraulic drive, and the outlet bell mouth flue can stretch left and right through the hydraulic sealing device, so that the sealing effect is achieved.
Compared with the prior art, the utility model has the advantages of it is following:
1. this SCR denitration catalyst simulation reaction device, guarantee the equipartition nature of air current in the SCR denitration catalyst simulation reaction device through flue gas guiding device and flue gas equipartition device, guarantee the leakproofness of gas in the SCR denitration catalyst simulation reaction device through flue gas seal gasket and hydraulic seal device, can guarantee freely dismantling through movable catalyst carrier, install the catalyst module, guarantee SCR denitration catalyst simulation reaction device detection and analysis's needs through the monitoring mouth that has flue gas sampling function, simultaneously through multiple arrangement pattern, satisfy the needs of various catalyst actual arrangement modes, thereby can effectively detect the performance of catalyst, guarantee the quality that detects, guarantee validity and the accuracy that SCR denitration catalyst detected.
2. The uniform distribution of airflow in the SCR denitration catalyst simulation reaction device is effectively realized; the sealing performance of the SCR denitration catalyst simulation reaction device is ensured; the catalyst module can be conveniently and rapidly mounted and dismounted; the effectiveness and accuracy of the catalyst performance detection are ensured.
Drawings
Fig. 1 is the utility model discloses SCR denitration catalyst simulation reaction device's of embodiment structural schematic.
Fig. 2 is a schematic diagram of a connection relationship when a catalyst carrier is arranged in two stages in an SCR denitration catalyst simulation reaction device according to an embodiment of the present invention.
Fig. 3 is a schematic view of the connection relationship when the catalyst carrier is set at three stages in the SCR denitration catalyst simulation reactor of the embodiment of the present invention.
Fig. 4 is a schematic view of the connection relationship when the catalyst carrier is set to four stages in the SCR denitration catalyst simulation reactor of the embodiment of the present invention.
Fig. 5 is a schematic diagram of a structure in which four SCR denitration catalyst simulation reactors are connected in series when the single-stage catalyst carrier of the embodiment of the present invention is installed.
Fig. 6 is a schematic diagram of a two-stage catalyst carrier in series connection with two SCR denitration catalyst simulation reactors according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a flue gas guiding device according to an embodiment of the present invention.
Fig. 8 is a left side view structure diagram of the flue gas guiding device of the embodiment of the present invention.
Fig. 9 is a right side view schematic structural diagram of the flue gas guiding device of the embodiment of the present invention.
Fig. 10 is a schematic front view structure diagram of a horn grid structure in the flue gas guiding device according to the embodiment of the present invention.
Fig. 11 is a left side view structural schematic diagram of a horn grid structure in the flue gas guiding device of the embodiment of the present invention.
Fig. 12 is a left side view structure diagram of the flue gas uniform distribution device of the embodiment of the present invention.
In the figure: the device comprises a flue gas pipeline 1, an inlet bell mouth flue 2, a flue gas guiding device 3, a flue gas uniform distribution device 4, a monitoring port 5, a flue gas sealing gasket 6, a catalyst carrier 7, an outlet bell mouth flue 8, a hydraulic sealing device 9 and a horn grid structure 10.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 12, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if the terms such as "upper", "lower", "left", "right", "middle" and "one" are used, they are not intended to limit the scope of the present invention, but to limit the relative relationship between the terms and the terms, and the scope of the present invention is not to be considered as the scope of the present invention.
The SCR denitration catalyst simulation reaction device in the embodiment comprises a flue gas pipeline 1, an inlet bell mouth flue 2, a flue gas flow guide device 3, a flue gas uniform distribution device 4, a monitoring port 5 with a flue gas sampling function, a flue gas sealing gasket 6, a catalyst carrying vessel body 7, an outlet bell mouth flue 8 and a hydraulic sealing device 9.
Flue gas seal gasket 6 is all installed at the both ends of catalyst carrier 7 in this embodiment, flue gas seal gasket 6 is connected with monitoring mouth 5, flue gas equipartition device 4 and export horn mouth flue 8 all are connected with monitoring mouth 5, flue gas guiding device 3 is connected with flue gas equipartition device 4, entry horn mouth flue 2 is connected with flue gas guiding device 3, hydraulic seal device 9 is connected with export horn mouth flue 8, entry horn mouth flue 2 and hydraulic seal device 9 all are connected with flue gas pipeline 1. The hydraulic sealing device 9 is connected with an external hydraulic drive, and the outlet bell mouth flue 8 can stretch left and right through the hydraulic sealing device 9, so that a sealing effect is achieved.
The number of the catalyst carriers 7 in this embodiment is plural, and the plural catalyst carriers 7 are connected by the flue gas seal gasket 6 (see fig. 2, 3, and 4).
In this embodiment, the number of the SCR denitration catalyst simulation reactors is plural, and the plural SCR denitration catalyst simulation reactors are connected by a flue gas duct 1 (see fig. 5 and 6).
The inlet bell mouth flue 2 in the embodiment is made of stainless steel; the inlet section shape of the inlet bell-mouth flue 2 and the outlet section shape of the inlet bell-mouth flue 2 are both square; the inlet section size of the inlet bell mouth flue 2 is 50mm to 100mm, the outlet section size of the inlet bell mouth flue 2 is 155mm to 165mm, the length of the bell section flue gas flowing direction of the inlet bell mouth flue 2 is 150mm to 250mm, and the length of the straight section flue gas flowing direction of the inlet bell mouth flue 2 is 100mm to 200 mm.
The material of the flue gas guiding device 3 in this embodiment is stainless steel; the flue gas guiding device 3 is arranged in a flue gas inlet bell mouth, the length of the flue gas flowing direction of the flue gas guiding device 3 is L, the range of the L is 100-150 mm, the side length of the inlet section of the flue gas guiding device 3 is D, the range of the L is 75-100 mm, the side length of the outlet section of the flue gas guiding device 3 is D, and the inlet section of the flue gas guiding device 3 is consistent with the outlet section of the inlet bell mouth flue 2 (such as figures 7, 8, 9, 10 and 11).
In the embodiment, the outlet of the flue gas guiding device 3 is provided with a uniform outlet grid structure, and the inlet of the flue gas guiding device 3 is provided with a uniform inlet grid structure; the center of the inlet grating structure is arranged in a square shape, and the side length of the inlet grating structure is d/3; the size of the outlet grill structure is D/m, m being a positive integer (m =1, 2, 3, 4 …); the size of the inlet grill structure is d/3n, n being a positive integer (n =1, 2, 3, 4 …); the outlet grille structure is provided with n horn grille structures 10 arranged in a square shape at the center, and four sides of each horn grille structure 10 are parallel to the horn mouth edges (as shown in figures 7, 8, 9, 10 and 11).
The material of the flue gas uniform distribution device 4 in the embodiment is stainless steel, the flue gas uniform distribution device 4 is arranged in a straight section flue of the inlet bell-mouth flue 2, the length of the flue gas uniform distribution device 4 along the flow direction of flue gas is 3-10 mm, the cross section size of the flue gas uniform distribution device 4 is consistent with the outlet cross section size of the flue gas guide device 3, the cross section of the flue gas uniform distribution device 4 is uniformly provided with uniform distribution holes, and the number of the uniform distribution holes is 6 × 6-12 × 12 (as shown in figure 12); the shape of the uniform distribution holes is regular octagon, regular hexagon, square, regular triangle, circle or ellipse.
The material of the catalyst carrier 7 in this embodiment is stainless steel, the cross-sectional dimension of the catalyst carrier 7 is the same as the outlet cross-sectional dimension of the outlet bell mouth flue 8, and the length of the catalyst carrier 7 along the flue gas flowing direction is 1.2-1.7 m. In particular, the length of a single-stage catalyst carrier 7 along the flowing direction of flue gas is 1.2-1.7 m; when the multi-stage catalyst carrier bodies 7 are used together, a layer of flue gas sealing gasket 6 is arranged between the catalyst carrier bodies 7 at each stage; the material of the flue gas sealing gasket 6 is high-carbon steel, and the flue gas sealing gasket 6 is arranged at two ends of the catalyst carrier 7.
The simulation method of the SCR denitration catalyst simulation reaction apparatus in this embodiment is as follows: flue gas enters an inlet bell mouth flue 2 from a flue gas pipeline 1, and is guided and uniformly distributed through a flue gas guiding device 3 and a flue gas uniformly distributing device 4, so that the uniform distribution of the flue gas of a catalyst carrier 7 is ensured, the flue gas in the catalyst carrier 7 reacts under the condition of a catalyst, the reacted flue gas is discharged into the flue gas pipeline 1 through an outlet bell mouth flue 8, the catalyst carrier 7 is sealed through a hydraulic sealing device 9 by adopting a flue gas sealing gasket 6, the catalyst carrier 7, the inlet bell mouth flue 2, the outlet bell mouth flue 8 and the space between the catalyst carrier 7 are sealed through the flue gas sealing gasket 6, meanwhile, the sealing is realized through the hydraulic sealing device 9, and the components, the temperature, the flow rate and the static pressure of the flue gas are measured through a monitoring port 5.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a SCR denitration catalyst simulation reaction device which characterized in that: the device comprises a flue gas pipeline (1), an inlet bell mouth flue (2), a flue gas guide device (3), a flue gas uniform distribution device (4), a monitoring port (5) with a flue gas sampling function, a flue gas sealing gasket (6), a catalyst carrier body (7), an outlet bell mouth flue (8) and a hydraulic sealing device (9); flue gas seal gasket (6) are all installed at the both ends of catalyst carrier boat body (7), flue gas seal gasket (6) are connected with monitoring mouth (5), flue gas equipartition device (4) and export horn mouth flue (8) all are connected with monitoring mouth (5), flue gas guiding device (3) are connected with flue gas equipartition device (4), entry horn mouth flue (2) are connected with flue gas guiding device (3), hydraulic seal device (9) are connected with export horn mouth flue (8), entry horn mouth flue (2) and hydraulic seal device (9) all are connected with flue gas pipeline (1).
2. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the catalyst carrier bodies (7) are multiple, and the multiple catalyst carrier bodies (7) are connected through a flue gas sealing gasket (6).
3. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the SCR denitration catalyst simulation reaction device is multiple in number and connected through a flue gas pipeline (1).
4. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the inlet section shape of the inlet bell-mouth flue (2) and the outlet section shape of the inlet bell-mouth flue (2) are both square.
5. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the size of the inlet section of the flue gas guiding device (3) is consistent with that of the outlet section of the inlet bell mouth flue (2).
6. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the outlet of the flue gas guiding device (3) is provided with an even outlet grid structure, and the inlet of the flue gas guiding device (3) is provided with an even inlet grid structure.
7. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the cross section of the flue gas uniform distribution device (4) is consistent with the outlet cross section of the flue gas guide device (3), and the cross section of the flue gas uniform distribution device (4) is uniformly provided with uniform distribution holes.
8. The SCR denitration catalyst simulation reaction device of claim 7, wherein: the shape of the uniform distribution holes is regular octagon, regular hexagon, square, regular triangle, circle or ellipse.
9. The SCR denitration catalyst simulation reaction device according to claim 1, characterized in that: the cross section of the catalyst carrier body (7) is consistent with the outlet cross section of the outlet bell mouth flue (8).
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| CN201920278521.1U CN210090397U (en) | 2019-03-05 | 2019-03-05 | SCR denitration catalyst simulation reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884241A (en) * | 2019-03-05 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of SCR denitration simulation reaction device and analogy method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884241A (en) * | 2019-03-05 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of SCR denitration simulation reaction device and analogy method |
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