Denitration device for heat supply steam

Abstract

The utility model belongs to the technical field of denitration devices, and particularly relates to a denitration device for heat supply steam, which comprises a spray tower, a water storage tank is fixedly mounted at the bottom of the spray tower, a spray component is arranged in the spray tower, a filler layer is fixedly mounted in the spray tower, a water pump is fixedly mounted in the water storage tank, and a water outlet is formed in the water pump. An annular groove is formed in the filter box, a sealing plate is arranged in the filter box, and a filter cartridge corresponding to the annular groove is fixedly mounted on the sealing plate. According to the utility model, impurities in the adsorption liquid can be conveniently filtered and removed by the denitration device for heat supply steam through the mounted filter cartridge, the pipeline blockage phenomenon is effectively avoided, the adsorption liquid in the water storage tank is pumped by the water pump, the adsorption liquid flows into the filter box, and after the impurities are filtered by the filter cartridge, the impurities in the adsorption liquid are filtered by the filter cartridge. And the superheated steam enters the spraying assembly and is sprayed downwards as water mist, so that the superheated steam is subjected to denitration treatment, and the aim of filtering and collecting impurities is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration devices, in particular to a denitration device for heating steam. Background Art

[0002] The spray tower, as a key equipment specially used for implementing chemical denitrification technology, works by bringing the spray liquid into close contact with the flue gas to form an efficient interaction, thereby achieving the goal of reducing nitrogen oxide emissions. In industrial processes such as thermal power generation, the heating steam denitrification device plays an important role. As an auxiliary equipment, it can effectively adsorb and remove nitrogen oxides in steam through a precisely designed washing process, thereby reducing overall environmental pollution and promoting green and sustainable development.

[0003] During operation, existing denitrification equipment for heating steam has certain limitations in the treatment of impurities in the adsorption liquid. The particles entrained in the adsorption liquid are often difficult to be effectively filtered. Over time, these impurities easily accumulate inside the pipeline and form blockages, which not only reduces the working efficiency of the device, but also significantly increases the frequency and complexity of equipment maintenance, bringing additional pressure to daily operations.

[0004] Patent document CN209564827U discloses a denitration device for heating steam, "including a denitration device body, a support leg and a liquid storage mechanism arranged inside the denitration device body, the denitration device body is provided with a denitration mechanism, the denitration mechanism includes an ammonia inlet pipe, a circular ammonia grid pipe, a one-way nozzle, a fixing plate, a connecting pipe and an air inlet, the support leg is symmetrically installed and fixed on the lower surface of the denitration device body; the utility model sprays ammonia through the one-way nozzles evenly distributed on the lower surface of the circular ammonia grid pipe, reduces the time for ammonia to diffuse evenly inside the denitration device body, and increases the steam The reaction time of steam denitration is shortened and the steam is fully denitrated, and the amount of ammonia used is saved and the amount of ammonia overflowing from the exhaust port is reduced, thereby reducing the user's use cost. The circular ammonia grid pipe is fixed to the inside of the denitration device body through a fixing plate, which is convenient for the later disassembly and replacement of the circular ammonia grid pipe and increases the assembly speed of workers. However, a denitration device for heating steam in the above-mentioned public document mainly considers the convenience of the later disassembly and replacement of the circular ammonia grid pipe, but does not consider the problem of facilitating the full filtering and screening of the tiny particles carried in the adsorption liquid. Therefore, it is necessary to develop a denitration device for heating steam. Utility Model Content

[0005] The utility model aims to provide a denitration device for heating steam to solve the technical problem that it is not convenient to fully filter the tiny impurities in the adsorption liquid proposed in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a denitration device for heating steam, comprising a spray tower, a water storage tank is fixedly installed at the bottom of the spray tower, a spray assembly is arranged inside the spray tower, a packing layer is fixedly installed inside the spray tower, and the packing layer is located on one side of the spray assembly;

[0007] A water pump is fixedly installed inside the water storage tank, and a water supply pipe is fixedly connected to the output end of the water pump. A support plate is fixedly installed on the top of the water storage tank, and a filter box is fixedly installed on the top of the support plate. An annular groove is provided inside the filter box, and a sealing plate is provided inside the filter box. A filter cartridge corresponding to the annular groove is fixedly installed on the sealing plate, and one end of the filter cartridge extends to the inside of the annular groove. A water pipe is installed on the top of the filter box, and the water pipe is connected to the spray assembly.

[0008] Preferably, an air inlet head is installed on the spray tower, and an exhaust pipe is installed on the top of the spray tower.

[0009] Preferably, a filter is fixedly installed inside the spray tower.

[0010] Preferably, a sealing ring is installed around the sealing plate.

[0011] Preferably, a mounting groove is fixedly installed inside the water storage tank.

[0012] Preferably, a pulley is installed inside the installation groove through a bearing array, a rotating rod is fixedly installed on the top of the pulley, and one end of the rotating rod extends to the inside of the water storage tank, and stirring blades are installed in an array on the rotating rod.

[0013] Preferably, a sealing box is fixedly installed on the top of the installation groove, a driving motor is fixedly installed inside the sealing box, a driving wheel is movably provided inside the installation groove, and the driving wheel is connected to the pulley through a belt drive, and the output end of the driving motor is fixedly connected to the top of the driving wheel.

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

[0015] 1. The utility model facilitates the denitration device for heating steam to filter and remove impurities in the adsorption liquid through the installed filter cartridge, effectively avoiding the occurrence of pipeline blockage. The water pump will pump the adsorption liquid inside the water storage tank, and the adsorption liquid will flow into the filter box through the water supply pipe. After the impurities are filtered by the filter cartridge, the water source will enter the water pipe, and then enter the spray component to form water mist and spray downward to denitrate the superheated steam. The filter cartridge facilitates the filtration and adsorption of impurities carried in the water source, so as to achieve the purpose of filtering and collecting impurities, avoid the blockage of the internal pipeline of the denitration device for heating steam caused by excessive impurities, and reduce the maintenance frequency;

[0016] 2. The utility model installs stirring blades to facilitate the rapid mixing reaction of the reaction liquid and the adsorption liquid inside the heating steam denitrification device, thereby improving work efficiency. After the reaction liquid is added into the water storage tank, the driving motor is operated to drive the driving wheel to rotate, and then the belt drives the pulley to rotate. When the pulley rotates, the rotating rod drives the stirring blades to rotate, and then the liquid inside the water storage tank is stirred, so that the water source and the reaction liquid are quickly mixed, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the water storage tank of the utility model;

[0020] Figure 4 This is a schematic diagram of the filter box structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the filter cartridge structure of the utility model.

[0022] In the figure: 1. spray tower; 2. water storage tank; 3. spray assembly; 4. packing layer; 5. air inlet head; 6. exhaust pipe; 7. filter screen; 8. water pump; 9. water supply pipe; 10. support plate; 11. filter box; 12. annular groove; 13. sealing plate; 14. sealing ring; 15. filter cartridge; 16. water pipe; 17. mounting groove; 18. rotating rod; 19. pulley; 20. sealing box; 21. driving motor; 22. driving wheel; 23. stirring fan blade. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 , Figure 4 and Figure 5A denitration device for heating steam comprises a spray tower 1, a water storage tank 2 is fixedly installed at the bottom of the spray tower 1, a spray assembly 3 is arranged inside the spray tower 1, a packing layer 4 is fixedly installed inside the spray tower 1, and the packing layer 4 is located on one side of the spray assembly 3, a water pump 8 is fixedly installed inside the water storage tank 2, and a water supply pipe 9 is fixedly connected to the output end of the water pump 8, a support plate 10 is fixedly installed on the top of the water storage tank 2, a filter box 11 is fixedly installed on the top of the support plate 10, an annular groove 12 is arranged inside the filter box 11, a sealing plate 13 is arranged inside the filter box 11, a filter cartridge 15 corresponding to the annular groove 12 is fixedly installed on the sealing plate 13, and one end of the filter cartridge 15 extends to the inside of the annular groove 12, a water delivery pipe 16 is installed on the top of the filter box 11, and the water delivery pipe 16 is connected to the spray assembly 3. When the denitration device for heating steam is used to denitrate heating steam, the steam to be treated enters the spray tower 1 through the air inlet head 5. After the reaction agent is added to the water storage tank 2 and mixed with the adsorption liquid, the water pump 8 will work to pump the adsorption liquid inside the water storage tank 2, and the adsorption liquid will flow into the filter box 11 through the water supply pipe 9. After the impurities are filtered by the filter cartridge 15, the water source will enter the water delivery pipe 16, and then enter the spray assembly 3 to form water mist and spray downward. When the heating steam flows upward, the water mist reacts with the steam through the packing layer 4, and then the superheated steam is denitrated. The filter cartridge 15 is used to filter and adsorb the impurities carried in the water source, so as to achieve the purpose of filtering the impurities, avoid the blockage of the internal pipeline of the heating steam denitration device caused by excessive impurities, reduce the maintenance frequency, and when the filtered impurities are removed, the sealing plate 13 is no longer limited, and moving the sealing plate 13 will drive the filter cartridge 15 to move, so that the filter cartridge 15 can be moved to the outside, and the impurities filtered inside the filter cartridge 15 can be removed.

[0025] See also Figure 1 An air inlet head 5 is installed on the spray tower 1, and an exhaust pipe 6 is installed on the top of the spray tower 1. The filtered steam is discharged to the outside through the exhaust pipe 6.

[0026] See also Figure 2 A filter screen 7 is fixedly installed inside the spray tower 1. The reaction liquid that adsorbs impurities flows downward and falls on the filter screen 7. After the impurities are filtered by the filter screen 7, they flow back into the water storage tank 2 for storage.

[0027] See also Figure 5 A sealing ring 14 is installed around the sealing plate 13 to seal the gap between the sealing plate 13 and the filter box 11.

[0028] See also Figure 2 and Figure 3An installation groove 17 is fixedly installed inside the water storage tank 2, and the water storage tank 2 provides an installation space for the installation groove 17.

[0029] See also Figure 2 A pulley 19 is installed inside the mounting groove 17 through a bearing array, a rotating rod 18 is fixedly installed on the top of the pulley 19, and one end of the rotating rod 18 extends to the inside of the water storage tank 2, and a stirring blade 23 is installed in an array on the rotating rod 18. The mounting groove 17 provides an installation space for the pulley 19. When the pulley 19 rotates, it will drive the rotating rod 18 to rotate, and then drive the stirring blade 23 to rotate synchronously.

[0030] See also Figure 2 and Figure 3 A sealing box 20 is fixedly installed on the top of the mounting groove 17, and a driving motor 21 is fixedly installed inside the sealing box 20. A driving wheel 22 is movably arranged inside the mounting groove 17, and the driving wheel 22 is connected to the pulley 19 through a belt transmission, and the output end of the driving motor 21 is fixedly connected to the top of the driving wheel 22. After adding the reaction liquid into the water storage tank 2, the driving motor 21 is operated to drive the driving wheel 22 to rotate, and then the pulley 19 is driven to rotate through the belt. When the pulley 19 rotates, the stirring blade 23 is driven to rotate through the rotating rod 18, and then the liquid inside the water storage tank 2 is stirred, so that the water source and the reaction liquid are quickly mixed, thereby improving the work efficiency.

[0031] Working principle: first, when the heating steam is denitrated using the heating steam denitrification device, the steam to be treated enters the spray tower 1 through the air inlet head 5, and after the reactant is added to the water storage tank 2 and mixed with the adsorption liquid, the water pump 8 will work to pump the adsorption liquid inside the water storage tank 2, and the adsorption liquid will flow into the filter box 11 through the water supply pipe 9. After the impurities are filtered by the filter cartridge 15, the water source will enter the water pipe 16, and then enter the spray assembly 3 to form water mist and spray downward. When the heating steam flows upward, the water mist reacts with the steam through the packing layer 4, and then the superheated steam is denitrated. It is convenient to filter and adsorb the impurities carried in the water source through the filter cartridge 15, so as to achieve the impurities. The purpose of filtering is to avoid blockage of the internal pipes of the denitrification device for heating steam due to excessive impurities, thereby reducing the frequency of maintenance. When removing the filtered impurities, the sealing plate 13 is no longer limited, and moving the sealing plate 13 will drive the filter cartridge 15 to move, and then the filter cartridge 15 can be moved to the outside, so that the impurities filtered inside the filter cartridge 15 can be removed. After adding the reaction liquid to the water storage tank 2, the driving motor 21 is operated to drive the driving wheel 22 to rotate, and then the belt drives the pulley 19 to rotate. When the pulley 19 rotates, the rotating rod 18 drives the stirring blade 23 to rotate, and then the liquid inside the water storage tank 2 is stirred, so that the water source and the reaction liquid are quickly mixed, thereby improving work efficiency.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A denitration device for heating steam, comprising a spray tower (1), characterized in that: A water storage tank (2) is fixedly installed at the bottom of the spray tower (1), a spray assembly (3) is arranged inside the spray tower (1), a packing layer (4) is fixedly installed inside the spray tower (1), and the packing layer (4) is located on one side of the spray assembly (3); A water pump (8) is fixedly installed inside the water storage tank (2), and the output end of the water pump (8) is fixedly connected to a water supply pipe (9). A support plate (10) is fixedly installed on the top of the water storage tank (2), and a filter box (11) is fixedly installed on the top of the support plate (10). An annular groove (12) is arranged inside the filter box (11), and a sealing plate (13) is arranged inside the filter box (11). A filter cartridge (15) corresponding to the annular groove (12) is fixedly installed on the sealing plate (13), and one end of the filter cartridge (15) extends to the inside of the annular groove (12). A water delivery pipe (16) is installed on the top of the filter box (11), and the water delivery pipe (16) is connected to the spray assembly (3).

2. A denitration device for heating steam according to claim 1, characterized in that: An air inlet head (5) is installed on the spray tower (1), and an exhaust pipe (6) is installed on the top of the spray tower (1).

3. A denitration device for heating steam according to claim 2, characterized in that: A filter screen (7) is fixedly installed inside the spray tower (1).

4. A denitration device for heating steam according to claim 1, characterized in that: A sealing ring (14) is installed around the sealing plate (13).

5. A denitration device for heating steam according to claim 1, characterized in that: A mounting groove (17) is fixedly mounted inside the water storage tank (2).

6. A denitration device for heating steam according to claim 5, characterized in that: A pulley (19) is installed inside the installation groove (17) through a bearing array, a rotating rod (18) is fixedly installed on the top of the pulley (19), and one end of the rotating rod (18) extends to the inside of the water storage tank (2), and a stirring fan blade (23) is installed in an array on the rotating rod (18).

7. A denitration device for heating steam according to claim 6, characterized in that: A sealing box (20) is fixedly installed on the top of the installation groove (17), a driving motor (21) is fixedly installed inside the sealing box (20), a driving wheel (22) is movably arranged inside the installation groove (17), the driving wheel (22) is connected to the pulley (19) through a belt transmission, and the output end of the driving motor (21) is fixedly connected to the top of the driving wheel (22).

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