A reducing agent filling and distributing device for flue gas denitration treatment

The design of the snap-fit ​​structure and the flexible centering mechanism solves the problems of rapid installation and uniform cooling of stainless steel conveying pipelines, and improves the convenience and cooling effect of the reducing agent injection and distribution device.

CN224292928UActive Publication Date: 2026-05-29江苏东图自动化设备有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏东图自动化设备有限公司
Filing Date
2025-06-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing cooling methods for stainless steel conveying pipelines are not convenient for quick installation, resulting in poor convenience of the reducing agent injection and distribution device.

Method used

The system employs a snap-fit ​​structure and a flexible centering mechanism to quickly fit the coolant delivery pipe onto the stainless steel delivery pipe, and the flexible centering mechanism ensures uniform contact and stable cooling.

Benefits of technology

It enables rapid installation and stable cooling of coolant delivery pipelines, and improves the convenience and cooling effect of reducing agent injection and distribution devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of reducing agent filling distribution devices for flue gas denitration treatment.The structure includes: purification tower main body, water pump main body, first semicircular pipe, second semicircular pipe, quick connecting mechanism and elastic centering mechanism, by installing quick connecting mechanism and elastic centering mechanism, press first buckle block into buckle plate inside, linkage flat gear drive first rack and second rack slide in buckle plate inside, second rack drives second buckle block into buckle plate inside, first buckle block and second buckle block extrude first spring contraction, first semicircular pipe and second semicircular pipe are close to ammonia water delivery pipe, buckle plate passes through buckle frame, first spring resets and opens, first buckle block and second buckle block are removed from buckle plate inside, first semicircular pipe and second semicircular pipe are firmly adhered, and elastic centering mechanism is convenient to center pipeline formed by first semicircular pipe and second semicircular pipe.
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Description

Technical Field

[0001] This utility model relates to the field of flue gas denitrification technology, and in particular to a reducing agent dispensing and distributing device for flue gas denitrification. Background Technology

[0002] Flue gas denitrification refers to the purification of flue gas generated during industrial combustion equipment or processes using physical, chemical, or biological methods to remove nitrogen oxides. If these pollutants are directly emitted into the atmosphere, they will exacerbate environmental problems such as acid rain and photochemical smog, harming the ecosystem and human health. Denitrification technology can significantly reduce the concentration of nitrogen oxide emissions, making them meet environmental emission standards, thereby reducing air pollution and contributing to the achievement of green and sustainable development goals.

[0003] When using chemical methods for flue gas denitrification, it is necessary to add a reducing agent to the purification tower. This involves using a water pump to send ammonia water into the purification tower. Ammonia water is highly volatile, so the stainless steel conveying pipeline needs to be cooled. The existing cooling methods for stainless steel conveying pipelines involve wrapping the coolant conveying pipeline around the conveying pipeline or installing the coolant conveying pipeline on top of the conveying pipeline to cool it down with coolant. However, the existing coolant conveying pipelines are not convenient to install quickly onto the conveying pipeline, which reduces the convenience of the reducing agent addition and distribution device.

[0004] Therefore, in response to the above problems, a new reducing agent dispensing and distribution device for flue gas denitrification treatment is proposed. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides a reducing agent dispensing device for flue gas denitrification treatment. It can quickly fit the coolant delivery pipe onto the stainless steel delivery pipe using a snap-fit ​​structure and an elastic centering mechanism. At the same time, it centers the coolant delivery pipe to facilitate uniform contact of the coolant with the surface of the stainless steel delivery pipe for stable cooling.

[0006] To achieve the above objectives, the first aspect of this utility model provides a reducing agent dispensing and distribution device for flue gas denitrification treatment, comprising:

[0007] The purification tower body, the water pump body, the first semicircular pipe, the second semicircular pipe, the quick connection mechanism, and the flexible centering mechanism;

[0008] The purification tower has a water pump body on one side, and the output end of the water pump body is connected to an ammonia water delivery pipe. The end of the ammonia water delivery pipe away from the water pump body is connected to the purification tower body. A first semi-circular tube is sleeved on the ammonia water delivery pipe, and a second semi-circular tube is sleeved on one side of the first semi-circular tube. A quick connection mechanism for assembling the first semi-circular tube and the second semi-circular tube are symmetrically installed on the first semi-circular tube. A quick connection mechanism is symmetrically installed on the second semi-circular tube. An elastic centering mechanism is symmetrically installed inside the first semi-circular tube and the second semi-circular tube.

[0009] The quick-connect mechanism includes a snap plate, a snap frame, a first snap block, and a second snap block;

[0010] The first semi-circular tube has a snap-on plate symmetrically fixedly connected to its surface, and the second semi-circular tube has a snap-on frame symmetrically fixedly connected to its surface. The snap-on plate and the snap-on frame are connected through each other. The snap-on plate has a first snap-on block slidably connected inside its interior, and a second snap-on block is provided below the first snap-on block and slidably connected to the snap-on plate.

[0011] Furthermore, the quick-connect mechanism also includes a linkage flat gear, a first rack, a second rack, and a first spring;

[0012] The buckle plate is internally connected to a linkage flat gear. The bottom end of the first buckle block is fixedly connected to a first rack that passes through the buckle plate. The top end of the second buckle block is fixedly connected to a second rack that passes through the buckle plate. The linkage flat gear meshes with the first rack and the second rack. A first spring is fixedly installed on the first buckle block and the second buckle block.

[0013] Furthermore, a first rubber strip is fixedly installed on both sides of the first semicircular tube, and a second rubber strip is fixedly installed on both sides of the second semicircular tube.

[0014] Furthermore, the elastic centering mechanism includes a piston housing, a piston rod, and a second spring;

[0015] The first semicircular tube has a piston shell symmetrically connected to its surface, and the second semicircular tube has a piston shell symmetrically connected to its surface. A piston rod is slidably connected to the inner wall of the piston shell and contacts the surface of the ammonia delivery pipe. A second spring is fixedly installed on the piston rod, and the side of the second spring away from the piston rod is fixedly connected to the inner wall of the piston shell.

[0016] Furthermore, a connecting seat is symmetrically fixedly connected to the second semi-circular tube, and a clamping mounting shell is installed on the connecting seat. A clamping rod is symmetrically slidably connected inside the clamping mounting shell, and a bidirectional screw is rotatably connected inside the clamping mounting shell and meshes with the clamping rod. The two ends of the bidirectional screw pass through the two side surfaces of the clamping mounting shell.

[0017] Furthermore, rectangular holes are equidistantly opened on the surface of the clamping rod.

[0018] Furthermore, rubber sleeves are symmetrically installed on the inner wall of the first semicircular tube, and rubber sleeves are symmetrically installed on the inner wall of the second semicircular tube. EPDM colloid is installed inside the rubber sleeves.

[0019] The technical solution provided by this utility model can include the following beneficial effects:

[0020] In this example, by installing a quick-connect mechanism and a flexible centering mechanism, pressing the first snap-fit ​​block into the snap-fit ​​plate causes the connecting flat gear to drive the first rack and second rack to slide inside the snap-fit ​​plate. The second rack drives the second snap-fit ​​block to retract into the snap-fit ​​plate. The first and second snap-fit ​​blocks compress the first spring, bringing the first and second semi-circular tubes closer to the ammonia delivery pipe. The snap-fit ​​plate passes through the snap-fit ​​frame, and the first spring returns to its original position, moving the first and second snap-fit ​​blocks out of the snap-fit ​​plate and firmly attaching the first and second semi-circular tubes together. Pressing the first or second snap-fit ​​block into the snap-fit ​​plate facilitates the quick separation of the first and second semi-circular tubes. The flexible centering mechanism facilitates the centering of the pipe composed of the first and second semi-circular tubes.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0022] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0023] Figure 1 This is a schematic diagram of the overall structure shown in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the separation structure of the first and second semicircular tubes shown in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the quick-connect mechanism structure shown in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the elastic centering mechanism structure shown in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of the clamping and mounting shell shown in an embodiment of the present invention;

[0028] Figure 6This is a schematic diagram of the internal structure of the rubber sleeve shown in an embodiment of this utility model.

[0029] The correspondence between the labels and component names in the attached figures is as follows:

[0030] 1. Purification tower body; 2. Water pump body; 3. Ammonia water delivery pipe; 4. First semi-circular pipe; 5. Second semi-circular pipe; 6. Buckle plate; 7. Buckle frame; 8. First buckle block; 9. Second buckle block; 10. Linking flat gear; 11. First rack; 12. Second rack; 13. First spring; 14. First rubber strip; 15. Second rubber strip; 16. Piston housing; 17. Piston rod; 18. Second spring; 19. Connecting seat; 20. Clamping mounting shell; 21. Clamping rod; 22. Two-way lead screw; 23. Rubber sleeve; 24. EPDM colloid. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0032] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0033] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Designing a flue gas denitrification treatment reducing agent dosing and distribution device with rapid assembly capabilities is currently the primary technical problem that technicians need to solve.

[0035] To address the aforementioned problems, this utility model provides a reducing agent dispensing and distribution device for flue gas denitrification treatment. This structure utilizes a snap-fit ​​structure and an elastic centering mechanism to quickly mount the coolant delivery pipe onto the stainless steel delivery pipe. Simultaneously, it centers the coolant delivery pipe, facilitating uniform contact of the coolant with the surface of the stainless steel delivery pipe for stable cooling.

[0036] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0037] Figure 1 This is a schematic diagram of the overall structure shown in an embodiment of the present invention; Figure 2 This is a schematic diagram of the separation structure of the first and second semicircular tubes shown in an embodiment of the present invention; Figure 3 This is a schematic diagram of the quick-connect mechanism structure shown in an embodiment of the present invention; Figure 4 This is a schematic diagram of the elastic centering mechanism structure shown in an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the clamping and mounting shell shown in an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the rubber sleeve shown in an embodiment of this utility model.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The reducing agent dispensing and distribution device for flue gas denitrification treatment specifically includes:

[0039] Purification tower body 1, water pump body 2, first semicircular pipe 4, second semicircular pipe 5, quick connection mechanism and flexible centering mechanism;

[0040] A water pump body 2 is provided on one side of the purification tower body 1. The output end of the water pump body 2 is connected to an ammonia water delivery pipe 3. The end of the ammonia water delivery pipe 3 away from the water pump body 2 is connected to the purification tower body 1. A first semi-circular pipe 4 is sleeved on the ammonia water delivery pipe 3. A second semi-circular pipe 5 is sleeved on one side of the first semi-circular pipe 4. A quick connection mechanism for assembling the first semi-circular pipe 4 and the second semi-circular pipe 5 is symmetrically installed on the first semi-circular pipe 4. A quick connection mechanism is symmetrically installed on the second semi-circular pipe 5. An elastic centering mechanism is symmetrically installed inside the first semi-circular pipe 4. An elastic centering mechanism is symmetrically installed inside the second semi-circular pipe 5.

[0041] The quick-connect mechanism includes a buckle plate 6, a buckle frame 7, a first buckle block 8, and a second buckle block 9;

[0042] The first semi-circular tube 4 is symmetrically fixedly connected with a buckle plate 6, and the second semi-circular tube 5 is symmetrically fixedly connected with a buckle frame 7. The buckle plate 6 and the buckle frame 7 are connected through each other. The buckle plate 6 is slidably connected with a first buckle block 8 inside. The first buckle block 8 is provided with a second buckle block 9 slidably connected with the buckle plate 6 below it.

[0043] Specifically, the quick-connect mechanism further includes a linkage flat gear 10, a first rack 11, a second rack 12, and a first spring 13;

[0044] The buckle plate 6 is internally connected to a linkage flat gear 10. The bottom end of the first buckle block 8 is fixedly connected to a first rack 11 that passes through the buckle plate 6. The top end of the second buckle block 9 is fixedly connected to a second rack 12 that passes through the buckle plate 6. The linkage flat gear 10 is meshed with the first rack 11 and the second rack 12. A first spring 13 is fixedly installed on the first buckle block 8 and the second buckle block 9.

[0045] Specifically, a first rubber strip 14 is fixedly installed on both sides of the first semicircular tube 4, and a second rubber strip 15 is fixedly installed on both sides of the second semicircular tube 5.

[0046] Specifically, the elastic centering mechanism includes a piston housing 16, a piston rod 17, and a second spring 18;

[0047] A piston shell 16 is symmetrically connected to the surface of the first semi-circular tube 4, and a piston shell 16 is symmetrically connected to the surface of the second semi-circular tube 5. A piston rod 17 is slidably connected to the inner wall of the piston shell 16 and contacts the surface of the ammonia water delivery pipe 3. A second spring 18 is fixedly installed on the piston rod 17, and the side of the second spring 18 away from the piston rod 17 is fixedly connected to the inner wall of the piston shell 16.

[0048] Specifically, a connecting seat 19 is symmetrically fixedly connected to the second semi-circular tube 5, and a clamping mounting shell 20 is installed on the connecting seat 19. A clamping rod 21 is symmetrically slidably connected inside the clamping mounting shell 20. A bidirectional lead screw 22 that meshes with the clamping rod 21 is rotatably connected inside the clamping mounting shell 20. Both ends of the bidirectional lead screw 22 pass through the two side surfaces of the clamping mounting shell 20.

[0049] Specifically, rectangular holes are equidistantly opened on the surface of the clamping rod 21.

[0050] Specifically, rubber sleeves 23 are symmetrically installed on the inner wall of the first semicircular tube 4, and rubber sleeves 23 are symmetrically installed on the inner wall of the second semicircular tube 5. EPDM colloid 24 is installed inside the rubber sleeves 23.

[0051] In this embodiment, how to fit the coolant pipe onto the ammonia water delivery pipe 3, combined with... Figures 1 to 4 The specific implementation method is as follows: The water pump body 2 is started. The input end of the water pump body 2 draws ammonia water from inside the ammonia tank. The output end of the water pump body 2 sends the ammonia water into the purification tower body 1 through the ammonia water delivery pipe 3. The first latching block 8 is pressed into the latching plate 6. The connecting flat gear 10 drives the first rack 11 and the second rack 12 to slide inside the latching plate 6. The second rack 12 drives the second latching block 9 to retract into the latching plate 6. The first latching block 8 and the second latching block 9 compress the first spring 13 to retract, bringing the first semi-circular tube 4 and the second semi-circular tube 5 closer together. The ammonia water delivery pipe 3 and the buckle plate 6 pass through the buckle frame 7. The first spring 13 returns to its original position and opens, moving the first buckle block 8 and the second buckle block 9 out of the buckle plate 6. The first semi-circular pipe 4 and the second semi-circular pipe 5 are firmly attached. The first rubber strip 14 is attached to the surface of the second rubber strip 15 to increase the sealing of the coolant pipe. Pressing the first buckle block 8 or the second buckle block 9 retracts it into the buckle plate 6, making it easy to quickly separate the first semi-circular pipe 4 and the second semi-circular pipe 5. The elastic centering mechanism facilitates centering the pipe composed of the first semi-circular pipe 4 and the second semi-circular pipe 5.

[0052] For example: How does a flexible centering mechanism achieve centering, combined with... Figure 4 The specific implementation method is as follows: the first semicircular tube 4 and the second semicircular tube 5 are firmly connected. The piston rod 17 contacts the surface of the ammonia water delivery pipe 3. The piston rod 17 squeezes the second spring 18 to contract. The elastic force of the second spring 18 is used to achieve centering. When the coolant delivery pipe is eccentric, the second spring 18 generates a restoring force, which makes it automatically return to the center position. The elastic support can absorb vibration and impact and improve stability.

[0053] In this embodiment, how to securely connect the second semicircular pipe 5 to the ammonia water delivery pipe 3, combined with... Figure 5The specific implementation method is as follows: rotate the handles at both ends of the bidirectional lead screw 22, the bidirectional lead screw 22 controls the two clamping rods 21 to move closer at the same time, the clamping rods 21 clamp the ammonia water delivery pipe 3 firmly, the rectangular hole increases the friction of the clamping rods 21, rotate the bidirectional lead screw 22 in the opposite direction, the two clamping rods 21 move away at the same time, which facilitates the separation of the clamping and mounting shell 20 and the ammonia water delivery pipe 3.

[0054] In this embodiment, how to ensure the sealing of the top ends of the first semicircular tube 4 and the second semicircular tube 5, combined with... Figure 6 The specific implementation method is as follows: the first semicircular tube 4 and the second semicircular tube 5 are sleeved on the ammonia water conveying pipe 3. The surface of the ammonia water conveying pipe 3 is squeezed to shrink the rubber sleeve 23 and the EPDM colloid 24. The EPDM colloid 24 can produce a large deformation under the pressure of the surface of the ammonia water conveying pipe 3, which compensates for the gap between the ammonia water conveying pipe 3 and the first semicircular tube 4 and the second semicircular tube 5, thereby providing good sealing performance.

[0055] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0056] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A reducing agent dispensing and distribution device for flue gas denitrification treatment, characterized in that, include: Purification tower body (1), water pump body (2), first semicircular pipe (4), second semicircular pipe (5), quick connection mechanism and flexible centering mechanism; A water pump body (2) is provided on one side of the purification tower body (1). The output end of the water pump body (2) is connected to an ammonia water delivery pipe (3). The end of the ammonia water delivery pipe (3) away from the water pump body (2) is connected to the purification tower body (1). A first semi-circular pipe (4) is sleeved on the ammonia water delivery pipe (3). A second semi-circular pipe (5) is sleeved on one side of the first semi-circular pipe (4). A quick connection mechanism for assembling the first semi-circular pipe (4) and the second semi-circular pipe (5) is symmetrically installed on the first semi-circular pipe (4). A quick connection mechanism is symmetrically installed on the second semi-circular pipe (5). An elastic centering mechanism is symmetrically installed inside the first semi-circular pipe (4). An elastic centering mechanism is symmetrically installed inside the second semi-circular pipe (5). The quick-connect mechanism includes a buckle plate (6), a buckle frame (7), a first buckle block (8), and a second buckle block (9); The first semicircular tube (4) is symmetrically fixedly connected with a buckle plate (6), and the second semicircular tube (5) is symmetrically fixedly connected with a buckle frame (7). The buckle plate (6) and the buckle frame (7) are connected through each other. The buckle plate (6) is slidably connected with a first buckle block (8) inside. The first buckle block (8) is provided with a second buckle block (9) slidably connected to the buckle plate (6) below it.

2. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 1, characterized in that: The quick-connect mechanism also includes a connecting flat gear (10), a first rack (11), a second rack (12), and a first spring (13). The buckle plate (6) is rotatably connected to a connecting flat gear (10). The bottom end of the first buckle block (8) is fixedly connected to a first rack (11) that passes through the buckle plate (6). The top end of the second buckle block (9) is fixedly connected to a second rack (12) that passes through the buckle plate (6). The connecting flat gear (10) meshes with the first rack (11) and the connecting flat gear (10) meshes with the second rack (12). A first spring (13) is fixedly installed on the first buckle block (8) and on the second buckle block (9).

3. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 1, characterized in that: The first semicircular tube (4) is fixedly installed with a first rubber strip (14) on both sides, and the second semicircular tube (5) is fixedly installed with a second rubber strip (15) on both sides.

4. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 1, characterized in that: The elastic centering mechanism includes a piston housing (16), a piston rod (17), and a second spring (18). The first semicircular tube (4) has a piston shell (16) symmetrically connected to its surface, and the second semicircular tube (5) has a piston shell (16) symmetrically connected to its surface. The piston shell (16) has a piston rod (17) slidably connected to its inner wall, which is in contact with the surface of the ammonia water delivery pipe (3). A second spring (18) is fixedly installed on the piston rod (17). The side of the second spring (18) away from the piston rod (17) is fixedly connected to the inner wall of the piston shell (16).

5. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 4, characterized in that: A connecting seat (19) is symmetrically fixedly connected to the second semi-circular tube (5). A clamping mounting shell (20) is installed on the connecting seat (19). A clamping rod (21) is symmetrically slidably connected inside the clamping mounting shell (20). A bidirectional screw (22) that meshes with the clamping rod (21) is rotatably connected inside the clamping mounting shell (20). Both ends of the bidirectional screw (22) pass through the two sides of the clamping mounting shell (20).

6. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 5, characterized in that: The clamping rod (21) has rectangular holes spaced at equal intervals on its surface.

7. The reducing agent dispensing and distribution device for flue gas denitrification treatment according to claim 4, characterized in that: Rubber sleeves (23) are symmetrically installed on the inner wall of the first semi-circular tube (4), and rubber sleeves (23) are symmetrically installed on the inner wall of the second semi-circular tube (5). EPDM colloid (24) is installed inside the rubber sleeves (23).