Supporting structure for construction of adding nitric acid pipeline to sodium nitrite reaction tower

Abstract

The utility model relates to the technical field of environmental protection, in particular to a supporting structure for sodium nitrite reaction tower additional nitric acid pipeline construction, which comprises a tower body and further comprises a circulating pump arranged on the outer side of the tower body, a circulating pipe is arranged on the top of the circulating pump, and a material supplementing pipe is arranged on the outer side of the tower body. A pressure sensor and a regulating valve are respectively arranged on the outer side of the material supplementing pipe; the supporting frame is fixed on the outer side of the tower body and is used for supporting the material supplementing pipe; nitric acid is supplemented into the tower body through the feeding pipe and the supplementing pipe, the nitric acid is uniformly mixed through the circulating pump, the risk of local enrichment reaction of the nitric acid is fully reduced, the supplementing pipe is supported and protected by the two groups of mounting seats, the stability of the supplementing pipe is improved, the supplementing pipe can be protected through the protective pad, and the safety of the tower body is improved. And the feeding angle of the feeding pipe is adjusted through the connecting frame, so that the nitric acid is conveniently supplemented subsequently, and the nitric acid supplementing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower. Background Technique

[0002] The sodium nitrite reaction tower, as an important part of the flue gas desulfurization system, is mainly used to remove sulfur dioxide (SO2) in the flue gas through the absorption and regeneration cycle process of sodium sulfite (Na2SO3) solution.

[0003] When the sodium nitrite reaction tower is in use, nitric acid needs to be supplemented into the tower. In the existing sodium nitrite reaction tower during use, nitric acid is usually replenished through the pipeline at the top of the tower. This may cause nitric acid to accumulate in the dead zone of the tray. As the temperature of the tower body gradually rises, nitric acid undergoes an exothermic reaction with methanol, posing a safety risk. Moreover, the stability of the nitric acid pipeline during use is poor. The sodium nitrite reaction tower does not have a structure for supporting and protecting the nitric acid pipeline, and it is easy for the pipeline to shake and shift during nitric acid supplementation, resulting in nitric acid leakage.

[0004] Therefore, it is necessary to provide a new support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower to solve the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower, including a tower body, and further including:

[0007] A circulation pump arranged on the outer side of the tower body. A circulation pipe is arranged at the top of the circulation pump. A feeding pipe is arranged on the outer side of the tower body. A pressure sensor and a regulating valve are respectively arranged on the outer side of the feeding pipe;

[0008] A support frame fixed on the outer side of the tower body to support the feeding pipe. The top of the support frame is fixedly connected with an installation frame. An installation seat for supporting the feeding pipe is arranged at the top of the installation frame. A protective pad is arranged on the inner wall of the installation seat. A connecting frame is arranged at the top of the support frame. A support rod is arranged on one side of the connecting frame.

[0009] Preferably, one end of the feeding pipe is provided with a connecting hose, and one end of the connecting hose is provided with a feeding pipe.

[0010] Preferably, a guide rod is fixedly connected to the inner wall of the installation frame, and a slider is slidably connected to the outer side of the guide rod.

[0011] Preferably, a spring is arranged on the outer side of the guide rod, a fixed block is fixedly connected to the outer side of the guide rod, and a clamping block is fixedly connected to the top of the fixed block.

[0012] Preferably, a limiting rod is fixedly connected to the top of the support frame, and a support sleeve is fixedly connected to the bottom of the connecting frame.

[0013] Preferably, a connecting seat is rotatably connected to the inner cavity of the connecting frame, and one side of the connecting seat is fixedly connected to one end of the support rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model replenishes nitric acid inside the tower body through the feed pipe and the supplementary feeding pipe, mixes the nitric acid evenly through the circulation pump, fully reduces the risk of local enrichment reaction of nitric acid, enables the two groups of mounting seats to support and protect the supplementary feeding pipe, improves the stability of the supplementary feeding pipe, can protect the supplementary feeding pipe through the protective pad, adjusts the feeding angle of the feed pipe through the connecting frame, facilitates subsequent replenishment of nitric acid, and improves the efficiency of nitric acid replenishment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of the support structure for the construction of adding a nitric acid pipeline to the sodium nitrite reaction tower provided by the present utility model;

[0017] Figure 2 is a schematic structural diagram of the support frame in the present utility model;

[0018] Figure 3 is a schematic structural diagram of the mounting frame in the present utility model;

[0019] Figure 4 is a schematic structural diagram of the connecting frame in the present utility model.

[0020] In the figure: 1, tower body; 2, circulation pump; 3, supplementary feeding pipe; 4, circulation pipe; 5, pressure sensor; 6, regulating valve; 7, support frame; 8, mounting frame; 9, mounting seat; 10, protective pad; 11, connecting frame; 12, support rod; 13, connecting hose; 14, feed pipe; 15, guide rod; 16, slider; 17, spring; 18, fixed block; 19, clamping block; 20, limiting rod; 21, support sleeve; 22, connecting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0022] Please refer to Figures 1-4As shown in the figure, a support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower includes a tower body 1. A circulation pump 2 is arranged outside the tower body 1. A circulation pipe 4 is arranged at the top of the circulation pump 2. One end of the circulation pipe 4 communicates with the outside of the tower body 1. A feeding pipe 3 is arranged outside the tower body 1. A pressure sensor 5 and a regulating valve 6 are respectively arranged outside the feeding pipe 3. A support frame 7 is fixed outside the tower body 1. The feeding pipe 3 can be supported by the support frame 7. The top of the support frame 7 is fixedly connected with a mounting frame 8. A mounting seat 9 is arranged at the top of the mounting frame 8. The feeding pipe 3 can be supported by the mounting seat 9. A protective pad 10 is arranged on the inner wall of the mounting seat 9. The feeding pipe 3 can be protected by the protective pad 10. A connecting frame 11 is arranged at the top of the support frame 7. The feeding position can be adjusted by setting the connecting frame 11. A support rod 12 is arranged on one side of the connecting frame 11.

[0023] Reference Figure 2 and Figure 3 As shown in the figure, one end of the feeding pipe 3 is provided with a connecting hose 13. One end of the connecting hose 13 is provided with a feeding pipe 14. Nitric acid can be fed through the feeding pipe 14. A guide rod 15 is fixedly connected to the inner wall of the mounting frame 8. A slider 16 is slidably connected to the outside of the guide rod 15. The top of the slider 16 is fixedly connected to the bottom of the mounting seat 9. A spring 17 is arranged on the outside of the guide rod 15. A fixing block 18 is fixedly connected to the outside of the guide rod 15. A clamping block 19 is fixedly connected to the top of the fixing block 18. The outside of the clamping block 19 is clamped with the inner wall of the slider 16. Pull the two sliders 16 to slide on the outside of the guide rod 15 to contract the spring 17. Install the feeding pipe 3 between the two mounting seats 9. The spring 17 resets to drive the two sliders 16 to reset, so that the slider 16 is clamped with the clamping block 19, so that the two mounting seats 9 support and protect the feeding pipe 3, improving the stability of the feeding pipe 3. The feeding pipe 3 can be protected by the protective pad 10.

[0024] Reference Figure 4 As shown in the figure, a limiting rod 20 is fixedly connected to the top of the support frame 7. A support sleeve 21 is fixedly connected to the bottom of the connecting frame 11. The inner wall of the support sleeve 21 is rotatably connected to the outside of the limiting rod 20 through a damping rotating shaft. A connecting seat 22 is rotatably connected to the inner cavity of the connecting frame 11. One side of the connecting seat 22 is fixedly connected to one end of the support rod 12. Rotate the connecting frame 11 to drive the support sleeve 21 to rotate on the outside of the limiting rod 20, so that the support rod 12 rotates horizontally to adjust the feeding angle of the feeding pipe 14. Rotate the support rod 12 to drive the connecting seat 22 to rotate inside the connecting frame 11, so that the support rod 12 rotates up and down to further adjust the feeding angle of the feeding pipe 14, facilitating the subsequent replenishment of nitric acid and improving the nitric acid replenishment efficiency.

[0025] Working principle: When this device is in use, nitric acid is supplemented into the interior of the tower body 1 through the feed pipe 14 and the make-up pipe 3. The nitric acid is evenly mixed by the circulation pump 2 to fully reduce the risk of local enrichment reaction of nitric acid. The pressure inside the make-up pipe 3 is monitored by the pressure sensor 5. Two groups of sliders 16 are pulled to slide on the outer side of the guide rod 15, causing the spring 17 to contract. The make-up pipe 3 is installed between two groups of mounting seats 9. When the spring 17 resets, it drives the two groups of sliders 16 to reset, enabling the sliders 16 to be clamped with the clamping blocks 19, so that the two groups of mounting seats 9 support and protect the make-up pipe 3, improving the stability of the make-up pipe 3. The make-up pipe 3 can be protected by the protective pad 10. The rotating connecting frame 11 drives the support sleeve 21 to rotate on the outer side of the limit rod 20, causing the support rod 12 to rotate horizontally to adjust the feeding angle of the feed pipe 14. Rotating the support rod 12 drives the connecting seat 22 to rotate inside the connecting frame 11, causing the support rod 12 to rotate up and down to further adjust the feeding angle of the feed pipe 14, facilitating the subsequent supplementation of nitric acid and improving the nitric acid supplementation efficiency.

[0026] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower, including a tower body (1), characterized in that, Further comprising: A circulation pump (2) arranged on the outer side of the tower body (1). A circulation pipe (4) is arranged at the top of the circulation pump (2). A feeding pipe (3) is arranged on the outer side of the tower body (1). A pressure sensor (5) and a regulating valve (6) are respectively arranged on the outer side of the feeding pipe (3); A support frame (7) fixed to the outer side of the tower body (1) for supporting the feeding pipe (3). An installation frame (8) is fixedly connected to the top of the support frame (7). An installation seat (9) for supporting the feeding pipe (3) is arranged at the top of the installation frame (8). A protective pad (10) is arranged on the inner wall of the installation seat (9). A connecting frame (11) is arranged at the top of the support frame (7). A support rod (12) is arranged on one side of the connecting frame (11).

2. The supporting structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower according to claim 1, characterized in that: One end of the feeding pipe (3) is provided with a connecting hose (13). One end of the connecting hose (13) is provided with a feeding pipe (14).

3. The supporting structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower according to claim 1, wherein: A guide rod (15) is fixedly connected to the inner wall of the installation frame (8). A slider (16) is slidably connected to the outer side of the guide rod (15).

4. The supporting structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower according to claim 3, characterized in that: A spring (17) is arranged on the outer side of the guide rod (15). A fixing block (18) is fixedly connected to the outer side of the guide rod (15). A clamping block (19) is fixedly connected to the top of the fixing block (18).

5. The support structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower according to claim 1, characterized in that: A limiting rod (20) is fixedly connected to the top of the support frame (7). A support sleeve (21) is fixedly connected to the bottom of the connecting frame (11).

6. The supporting structure for the construction of adding a nitric acid pipeline to a sodium nitrite reaction tower according to claim 1, characterized in that: A connecting seat (22) is rotatably connected to the inner cavity of the connecting frame (11). One side of the connecting seat (22) is fixedly connected to one end of the support rod (12).

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