Anti-seismic device for SCR (Selective Catalytic Reduction) denitration reactor

Abstract

The utility model relates to an anti-seismic device for an SCR (Selective Catalytic Reduction) denitration reactor, which relates to the technical field of denitration reactor auxiliary equipment and comprises a rack, a bearing frame is arranged in the rack, a top seat for supporting the SCR denitration reactor is arranged at the top of the bearing frame, and a damping component is arranged between the top seat and the bearing frame. And a telescopic rod is hinged between the top seat and the rack. The rack, the bearing frame and the top seat are of an integrated structure, when the top seat shakes due to the SCR reactor, a flexible adjusting space can be provided for the top seat by arranging the damping assemblies and the telescopic rods, metal fatigue of the supporting structure caused by long-time shaking of the top seat is avoided, the shock resistance of the whole device is achieved, and the service life of the whole device is prolonged. The problem that potential safety hazards are generated due to the fact that the flue shakes is solved, and therefore smoke leakage can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for denitration reactors, and specifically discloses a seismic device for an SCR denitration reactor. Background Art

[0002] SCR denitrification reactor is a very mature flue gas denitrification equipment. The principle of SCR denitrification reaction is to selectively reduce NOX in flue gas into non-toxic and non-polluting N2 and H2O by reducing agent under certain temperature and catalyst. The overall system of SCR denitrification reactor is mainly composed of SCR catalytic reactor, ammonia injection system, flue gas bypass system, ammonia storage and preparation system, etc. At present, the layout of SCR denitrification reactor at home and abroad is generally high dust, that is, it is arranged in the high-temperature flue between economizer and air preheater.

[0003] The utility model patent with authorization announcement number: CN214131065U discloses an SCR denitrification reactor device with high cleaning efficiency, including an SCR reactor body and an air compressor. The upper part of the interior of the SCR reactor body is provided with multiple catalyst layers, the lower part of the interior of the SCR reactor body is provided with an ash hopper, and the lower side of the SCR reactor body is provided with an ash receiving trough. The SCR reactor body is installed on a support frame, an air compressor is provided on the right side of the upper end surface of the SCR reactor body, an air pipeline is provided on the left side of the air compressor, a rotating motor is provided on the lower end surface of the lowest catalyst layer, and a jet cylinder is provided on the upper side of the rotating motor.

[0004] At present, the heating device equipped with the SCR denitrification reactor mostly adopts a direct-fired flue heating furnace. The fuel and air in the heating furnace are burned and then directly sprayed into the flue to mix with the original flue gas. During the flue gas mixing process, the uneven flue gas, the impact of the flue gas from the heating furnace and the external wind load cause the vertical flue to shake; the arrangement structure of the gas pipe and the jet nozzle in the above-mentioned patented technology is easy to cause the whole device to shake, thereby generating vibration. The vibration of the device cannot be completely eliminated by only using the external support frame. If the device shakes too much or the frequency is too high, it will cause metal fatigue to the closed support structure of the SCR denitrification reactor, resulting in flue gas leakage, thereby causing safety hazards. Utility Model Content

[0005] Aiming at the problem of potential safety hazards caused by flue shaking in the current SCR denitration reactor, the utility model provides a seismic device for the SCR denitration reactor.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A seismic device for an SCR denitration reactor comprises a stand, a bearing frame is installed inside the stand, a top seat for supporting the SCR denitration reactor is arranged on the top of the bearing frame, a shock absorbing assembly is arranged between the top seat and the bearing frame, and a telescopic rod is hinged between the top seat and the stand.

[0008] Preferably, at least two of the support frames are provided, a cylinder is installed in the support frame, a bottom plate is fixedly connected to the bottom of the cylinder, and the bottom plate is fixedly connected to the stand.

[0009] Preferably, the shock absorbing assembly includes a first connecting buckle connected to the supporting frame, a sliding rod is provided on the first connecting buckle, a sliding sleeve is provided on the sliding rod, a second connecting buckle connected to the top seat is provided on the sleeve, and a compression spring is provided between the first connecting buckle and the second connecting buckle.

[0010] Preferably, a first receiving plate is provided on the stand, a second receiving plate is provided on the lower surface of the top seat, and both ends of the telescopic rod are hinged to the first receiving plate and the second receiving plate respectively.

[0011] Preferably, the telescopic rods are provided in multiple groups and arranged obliquely, both ends of the telescopic rods are fixedly connected to support seats, a ball protrusion is provided on the support seat, and grooves for rotation of the ball protrusion are provided on the surfaces of the first receiving plate and the second receiving plate.

[0012] Preferably, a height-adjustable foot is rotatably mounted on the bottom of the stand, and a pulley is provided on one side of the foot.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The stand, the bearing frame and the top seat in the utility model are an integrated structure. When the top seat is shaken by the SCR reactor, a more flexible adjustment space can be provided for the top seat by arranging a shock-absorbing assembly and a telescopic rod, so as to avoid metal fatigue of the supporting structure caused by long-term shaking of the top seat, realize the seismic resistance of the whole device, solve the problem of potential safety hazards caused by shaking of the flue, and effectively avoid smoke leakage;

[0015] 2. The utility model provides a cylinder for connection between the platform and the receiving frame, which not only enables the platform and the bearing frame to be assembled into an integrated structure, but also enables the arrangement position of the bearing frame in the platform to be flexibly adjusted, and can realize the installation position of the top seat at various heights, thereby enhancing the flexibility of the overall device;

[0016] 3. The utility model can realize the hinge effect of the telescopic rod by arranging ball protrusions at both ends of the telescopic rod, so that the telescopic rod can not only play a supporting role, but also have a certain degree of flexibility, thereby supporting the top seat to shake on the stand, thereby avoiding damage to the top seat and the stand, and therefore has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall device structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cylinder installation structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the shock absorbing component of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the first receiving plate and the second receiving plate of the utility model;

[0022] Figure 5 This is a schematic diagram of the groove structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the telescopic rod structure of the utility model;

[0024] Figure 7 This is a schematic diagram of the ball protrusion structure of the utility model;

[0025] In the figure: 1. stand, 2. load-bearing frame, 3. top seat, 4. shock-absorbing assembly, 401. first connecting buckle, 402. sliding rod, 403. sleeve, 404. second connecting buckle, 405. compression spring, 5. telescopic rod, 6. cylinder, 7. bottom plate, 8. pulley, 9. first receiving plate, 10. second receiving plate, 11. supporting seat, 12. ball protrusion, 13. groove, 14. foot seat. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0027] This specific embodiment provides a seismic device for an SCR denitration reactor, such as Figure 1-Figure 7 As shown, the platform 1 includes a frame 1, which is composed of four longitudinal beams and four transverse beams. Connecting plates are installed on both sides of the platform 1, and the connecting plates are fixedly connected to the longitudinal beams, so as to enhance the stability and strength of the platform 1. A flat plate is provided at the bottom of the platform 1, and a load-bearing frame 2 is installed in the platform 1. The load-bearing frame 2 is composed of two longitudinal beams and one cross beam. The load-bearing frame 2 is provided with two left and right sides respectively arranged inside the platform 1, and a through hole is provided on the cross beam of the load-bearing frame 2, in which the piston rod of the cylinder 6 is installed, and a bottom plate 7 is fixedly connected to the bottom of the cylinder 6, and the bottom plate 7 is fixedly connected to the cross beam of the platform 1 by bolts, and a reinforcing plate corresponding to the bottom plate 7 is fixedly provided at the bottom of the cross beam of the load-bearing frame 2, and the reinforcing plate is sleeved on the outer peripheral wall of the piston rod of the cylinder 6. The reinforcing plate can increase the contact area between the piston rod of the cylinder 6 and the load-bearing frame 2, and avoid structural damage caused by stress concentration; the cylinder 6 can make the load-bearing frame 2 move up and down inside the platform 1, so as to adjust the assembly height of the load-bearing frame 2.

[0028] Among them, Figure 2 As shown, two cylinders 6 are provided, arranged on both sides of the crossbeam of the carrier frame 2 on one side, and there are four cylinders 6 in total, which are arranged at the four corners inside the platform 1 respectively, and the piston rods of the cylinders 6 are connected to the platform 1. By providing the cylinders 6, not only the platform 1 and the carrier frame 2 can be assembled into an integrated structure, but also the arrangement position of the carrier frame 2 in the platform 1 can be flexibly adjusted, thereby enhancing the flexibility of the overall device.

[0029] like Figure 1 , Figure 3As shown, a top seat 3 is provided on the top of the carrier 2, and the upper plane of the top seat 3 can be used to install the SCR denitration reactor, so that the top seat 3 is the supporting structure of the SCR denitration reactor, and a shock absorbing assembly 4 is provided between the carrier 2 and the top seat 3; the shock absorbing assembly 4 includes a first connecting buckle 401, and the first connecting buckle 401 is connected to the longitudinal beam of the platform 1, and a connecting pin is installed in the first connecting buckle 401, and the connecting pin is connected to the inner groove of the longitudinal beam of the platform 1, and a sliding rod 402 is provided on the upper plane of the first connecting buckle 401, and a sliding sleeve 403 is provided on the sliding rod 402, and the sleeve 403 is sleeved on the outer peripheral wall of the sliding rod 402, and the sleeve 403 can slide up and down on the outside of the sliding rod 402; a second connecting buckle 404 is provided on the top of the sleeve 403, and the second connecting buckle 404 is connected to the lower plane of the top seat 3. The second connecting buckle 404 is equipped with a connecting pin with the same setting as the first connecting buckle 401, and the connecting pin is connected to the lower plane of the top seat 3. The connecting pin is a rotating connection structure, which can make the first connecting buckle 401 and the second connecting buckle 404 have a flexible rotation connection effect; a compression spring 405 is arranged between the first connecting buckle 401 and the second connecting buckle 404, one end of the compression spring 405 is connected to the first connecting buckle 401, and the other end of the compression spring 405 is connected to the second connecting buckle 404. The compression spring 405 can provide support force for the first connecting buckle 401 and the second connecting buckle 404. When the top seat 3 applies downward pressure, the compression stroke of the compression spring 405 can be further shortened by sliding the sleeve 403 on the slide rod 402, so that the distance between the top seat 3 and the supporting frame 2 can be flexibly adjusted.

[0030] Among them, there are four shock-absorbing components 4, which are arranged at the four corners of the two supporting frames 2 respectively; by setting the shock-absorbing components 4, it can not only play the role of connecting support, so that the stand 1, the supporting frame 2 and the top seat 3 form an integrated structure, but also can flexibly adjust the distance between the supporting frame 2 and the top seat 3, so that when the SCR denitrification reactor applies downward pressure to the top seat 3, it can be adaptively adjusted to avoid damage to the supporting structure.

[0031] like Figure 1 , Figure 4-Figure 7As shown, a first receiving plate 9 is arranged on the flat plate of the stand 1, a second receiving plate 10 is arranged on the lower surface of the top seat 3, grooves 13 are arranged on the planes opposite to the first receiving plate 9 and the second receiving plate 10, a telescopic rod 5 is arranged between the first receiving plate 9 and the second receiving plate 10, and the two ends of the telescopic rod 5 are respectively hinged to the first receiving plate 9 and the second receiving plate 10; the telescopic rod 5 is a pneumatic telescopic rod, and the telescopic rod 5 includes an inner rod and an outer rod, and the inner rod is arranged in the inner groove of the outer rod, and the end of the inner rod and the end of the outer rod are fixedly connected with a support seat 11, and an insertion rod is arranged at the bottom of the support seat 11, which can be fixedly connected with the end of the inner rod and the end of the outer rod by arranging the insertion rod; a ball protrusion 12 is arranged on the support seat 11, and the ball protrusion 12 is rotatably installed in the groove 13.

[0032] The telescopic rods 5 are provided in multiple groups and arranged obliquely, and two telescopic rods 5 form one group, and the bottom outer rods of each group of telescopic rods 5 are far apart, and the top inner rods of each group of telescopic rods 5 are close to each other. When the SCR denitration reactor shakes during operation, the top seat 3 may shake. Since the telescopic rods 5 are hinged between the first receiving plate 9 and the second receiving plate 10, the telescopic rods 5 can play a supporting role and also have a certain degree of flexibility, thereby supporting the top seat 3 to shake on the stand 1, thereby avoiding damage to the top seat 3 and the stand 1.

[0033] In addition, a height-adjustable foot 14 is rotatably mounted at the bottom of the platform 1, and a pulley 8 is disposed on one side of the foot 14. Four sets of the foot 14 and the pulley 8 are respectively mounted at the four corners of the bottom of the platform 1; since the pulley 8 is a fixed mounting structure, the foot 14 and the pulley 8 can be selectively arranged as the supporting structure of the whole device through the ground clearance of the foot 14, further enhancing the flexibility of the whole device and facilitating the operator to move the device.

[0034] The working principle of the utility model is:

[0035] Before operation, the SCR denitration reactor is fixedly installed on the upper surface of the top seat 3, and the foot seat 14 is screwed downward to make the foot seat 14 contact with the ground; when the SCR denitration reactor starts to operate, due to the uneven flue gas entering the SCR denitration reactor, the impact force of the flue gas from the heating furnace and the external wind load, the SCR denitration reactor as a whole shakes, thereby driving the top seat 3 to shake. When the top seat 3 shakes, under the connection between the first connecting buckle 401 and the second connecting buckle 404, the top seat 3 can shake above the supporting frame 2, and through the cooperation of the compression spring 405 and the sliding rod 402 and the sleeve 403, the distance between the top seat 3 and the supporting frame 2 can be flexibly adjusted, thereby providing a more flexible adjustment space for the top seat 3 and the supporting frame; at the same time, the ball protrusions 12 at both ends of the telescopic rod 5 can flexibly rotate in the groove 13, and under the support of the telescopic rod 5, the shock absorbing assembly 4 shares the pressure and provides support stability to the overall device, thereby achieving the purpose of shock absorption and earthquake resistance for the SCR denitration reactor.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seismic device for an SCR denitration reactor, comprising a stand (1), characterized in that: A support frame (2) is installed in the platform (1), a top seat (3) for supporting an SCR denitration reactor is arranged on the top of the support frame (2), a shock absorbing assembly (4) is arranged between the top seat (3) and the support frame (2), and a telescopic rod (5) is hinged between the top seat (3) and the platform (1).

2. The anti-seismic device for SCR denitration reactor according to claim 1, characterized in that: At least two of the support frames (2) are provided, a cylinder (6) is mounted on the support frame (2), a bottom of the cylinder (6) is fixedly connected to a bottom plate (7), and the bottom plate (7) is fixedly connected to the stand (1).

3. The anti-seismic device for SCR denitration reactor according to claim 1, characterized in that: The shock absorbing assembly (4) comprises a first connecting buckle (401) connected to the supporting frame (2), a sliding rod (402) is arranged on the first connecting buckle (401), a sliding sleeve (403) is arranged on the sliding rod (402), a second connecting buckle (404) connected to the top seat (3) is arranged on the sleeve (403), and a compression spring (405) is arranged between the first connecting buckle (401) and the second connecting buckle (404).

4. The anti-seismic device for SCR denitration reactor according to claim 1, characterized in that: The stand (1) is provided with a first receiving plate (9), the lower surface of the top seat (3) is provided with a second receiving plate (10), and the two ends of the telescopic rod (5) are respectively hinged to the first receiving plate (9) and the second receiving plate (10).

5. The anti-vibration device for an SCR denitration reactor according to claim 4, characterized in that: The telescopic rods (5) are provided in multiple groups and arranged obliquely, and both ends of the telescopic rods (5) are fixedly connected to a support seat (11), and a ball protrusion (12) is provided on the support seat (11), and grooves (13) for the ball protrusion (12) to rotate are provided on the surfaces of the first receiving plate (9) and the second receiving plate (10).

6. The anti-vibration device for SCR denitration reactor according to claim 1, characterized in that: A height-adjustable footrest (14) is rotatably mounted on the bottom of the platform (1), and a pulley (8) is disposed on one side of the footrest (14).

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