Defoaming device of absorption tower and absorption tower
By setting up the mounting bracket and defoaming parts of the defoaming device in the absorption tower, the defoaming parts come into contact with the desulfurization slurry to puncture the bubbles, solving the false liquid level and overflow problems caused by bubbles in the wet desulfurization tower, achieving safe and stable operation and space saving of the system.
Patent Information
- Application Number
- CN202422216939.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, wet desulfurization towers are prone to accumulation of fine smoke and foaming during the flue gas desulfurization process, resulting in false liquid levels and intermittent overflow, affecting the stable operation of the system. At the same time, increasing the height of the equipment or adding defoaming agents will cause space occupancy or interfering with chemical reactions.
The defoaming device is adopted with a mounting frame and a plurality of defoaming parts. The defoaming part includes a main body and a defoaming part. The defoaming part comes into contact with the bubbles on the surface of the desulfurization slurry. It is arranged at intervals in the absorption tower through the mounting frame. The defoaming part punctures the bubbles to reduce false liquid levels and overflow.
Without changing the height of the absorption tower, the overflow probability is reduced, space occupation and production costs are reduced, and the safe operation and stability of the desulfurization system are ensured.
Smart Images
Figure CN223127662U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of flue gas desulfurization, and in particular, to an antifoaming device for an absorption tower and an absorption tower. Background Art
[0002] The wet desulfurization technology is a mature desulfurization method widely used in modern industry. The core equipment, the wet desulfurization tower, effectively removes sulfur dioxide in the flue gas by reacting sulfur dioxide in the flue gas with the absorption liquid. However, fine dust particles are likely to accumulate in the absorption tower, affecting the quality of the slurry and possibly causing foaming phenomena, thereby generating the problem of "false liquid level". It may also cause intermittent overflow of the absorption tower, threatening the stable operation of the system.
[0003] In the related art, generally, the foam is eliminated by increasing the height of the equipment to reduce the overflow or adding an antifoaming agent. However, increasing the height of the equipment will result in a larger occupied space of the overall structure. Although the method of adding an antifoaming agent can effectively control the foam, it may interfere with the chemical reactions in the production process, such as the dissolution of limestone and the crystallization of gypsum in wet desulfurization, increasing the consistency of the slurry, and thus affecting the service life of the equipment. Summary of the Utility Model
[0004] The purpose of the present disclosure is to provide an antifoaming device for an absorption tower and an absorption tower to solve the above technical problems.
[0005] To achieve the above purpose, as the first aspect of the present disclosure, the present disclosure provides an antifoaming device for an absorption tower, including a mounting frame and a plurality of antifoaming members. The mounting frame is adapted to be arranged in the shell of the absorption tower and adapted to be connected to the inner wall of the shell. The plurality of antifoaming members are adapted to be arranged at intervals on one side of the mounting frame facing the desulfurization slurry in the absorption tower.
[0006] The antifoaming member includes a main body and a plurality of antifoaming parts. The first end of the main body is connected to the mounting frame, and the plurality of antifoaming parts are arranged at intervals at the second end of the main body. The antifoaming part has an antifoaming end, and the antifoaming end is used to contact the bubbles on the surface of the desulfurization slurry in the absorption tower.
[0007] Optionally, the antifoaming part is a sheet-like member, one end of the sheet-like member is connected to the main body, and the other end of the sheet-like member has the antifoaming end.
[0008] Optionally, the main body is a cylinder, the first end of the cylinder is connected to the mounting frame, and the plurality of sheet-like members are arranged at intervals along the circumferential direction of the cylinder on the end face of the second end of the cylinder, and the plurality of sheet-like members are all located on the circumferential line of the end face.
[0009] Optionally, the mounting frame includes a plurality of support beams, both ends of each support beam are used to be connected to the inner wall of the housing of the absorption tower, a plurality of the defoaming members are arranged at intervals on the support beam, there is a gap between adjacent support beams, and the gap is used for the desulfurization slurry to pass through.
[0010] Optionally, the plurality of support beams are arranged in a staggered manner to form a network structure.
[0011] Optionally, the network structure includes a plurality of support beams arranged perpendicular to each other.
[0012] Optionally, the number of the mounting frames is at least two, at least two mounting frames are arranged at intervals in the vertical direction, and the plurality of defoaming members are arranged on each mounting frame.
[0013] Optionally, the projections of the support beams on adjacent two mounting frames are arranged in an angular staggered manner in the vertical direction.
[0014] Optionally, the angle is 45°-60°.
[0015] As a second aspect of the present disclosure, the present disclosure provides an absorption tower, including a housing and the defoaming device of the absorption tower as described above, a cavity for accommodating the desulfurization slurry is formed in the housing, and the defoaming device is installed in the cavity and connected to the inner wall of the housing.
[0016] Through the above technical solutions, since the defoaming member has a plurality of defoaming parts, the defoaming end of the defoaming part can contact and pierce the bubbles in the desulfurization slurry to reduce the false liquid level or intermittent overflow caused by foaming, and ensure the safe operation of the desulfurization system. Moreover, by using the mounting frame to install a plurality of defoaming members in the housing of the absorption tower, without changing the height of the absorption tower, the probability of the desulfurization slurry overflowing due to foaming is reduced. On the one hand, the space occupied by the absorption tower is reduced, and on the other hand, the equipment maintenance and production cost for controlling bubbles are reduced.
[0017] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. Description of the Drawings
[0018] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:
[0019] Figure 1 is a partial cross-sectional perspective view of an absorption tower provided by an embodiment of the present disclosure, in which the defoaming device is shown;
[0020] Figure 2 is Figure 1Enlarged view of part A;
[0021] Figure 3 It is a three-dimensional schematic diagram of the defoaming member of the defoaming device provided by an embodiment of the present disclosure;
[0022] Figure 4 It is a three-dimensional schematic diagram of the absorption tower provided by an embodiment of the present disclosure.
[0023] Description of reference numerals
[0024] 100 - Defoaming device; 200 - Absorption tower; 201 - Flue gas inlet; 202 - Flue gas outlet; 203 - Shell; 1 - Mounting frame; 11 - Support beam; 2 - Defoaming member; 21 - Main body; 22 - Defoaming part; 221 - Defoaming end; 23 - Connecting column. Specific embodiments
[0025] The following will describe the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present disclosure, and are not used to limit the present disclosure.
[0026] In the present disclosure, unless otherwise stated, the orientation terms such as "upper, lower" are usually defined based on the normal working state of the absorption tower. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation of the present disclosure. "Inner, outer" refers to the inside and outside of the contour of the corresponding component. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present disclosure, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "connected", "linked", "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0028] As the first aspect of the present disclosure, as Figures 1 to 4 shown, the present disclosure provides a defoaming device 100 for an absorption tower, including a mounting frame 1 and a plurality of defoaming members 2. The mounting frame 1 is adapted to be arranged in the shell 203 of the absorption tower 200 and is adapted to be connected to the inner wall of the shell 203. The plurality of defoaming members 2 are adapted to be arranged at intervals on one side of the mounting frame 1 facing the desulfurization slurry in the absorption tower 200.
[0029] The defoaming member 2 includes a main body 21 and a plurality of defoaming parts 22. The first end of the main body 21 is connected to the mounting bracket 1, and the plurality of defoaming parts 22 are arranged at intervals at the second end of the main body 21. The defoaming part 22 has a defoaming end 221, and the defoaming end 221 is used to contact the bubbles on the surface of the desulfurization slurry in the absorption tower 200.
[0030] Through the above technical solution, since the defoaming member 2 has a plurality of defoaming parts 22, the defoaming end 221 of the defoaming part 22 can contact and pierce the bubbles in the desulfurization slurry to reduce the false liquid level or intermittent overflow caused by foaming, and ensure the safe operation of the desulfurization system. Moreover, by using the mounting bracket 1 to install a plurality of defoaming members 2 in the housing 203 of the absorption tower 200, without changing the height of the absorption tower 200, the probability of the desulfurization slurry overflowing due to foaming is reduced. On the one hand, the space occupied by the absorption tower 200 is reduced, and on the other hand, the equipment maintenance and production cost for controlling bubbles are reduced.
[0031] Optionally, the spacing between adjacent defoaming members 2 can be 0.1 m - 0.3 m.
[0032] To increase the contact area between the defoaming part 22 and the desulfurization slurry, optionally, as Figure 3 shown, the defoaming part 22 is a sheet-like member. One end of the sheet-like member is connected to the main body 21, and the other end of the sheet-like member has a defoaming end 221. A plurality of sheet-like members are arranged at intervals at the second end of the main body 21, and a defoaming serrated structure can be formed. The defoaming ends 221 of the plurality of sheet-like members can cause uneven stress on the surface of the bubbles, thereby piercing the bubbles.
[0033] Optionally, the spacing between adjacent sheet-like members can be 0.01 m - 0.02 m, and the length of the sheet-like member can be 0.05 m - 0.1 m.
[0034] The present disclosure does not limit the specific shape of the main body 21. For example, the main body 21 can be one of a cuboid, a cone, and a cylinder. In an embodiment provided by the present disclosure, as Figure 3 shown, the main body 21 is a cylinder. The first end of the cylinder is connected to the mounting bracket 1, and a plurality of sheet-like members are arranged at intervals along the circumferential direction on the end face of the second end of the cylinder, and the plurality of sheet-like members are all located on the circumferential line of the end face. By setting the main body 21 as a cylinder, on the one hand, since the area of a circle is the largest under the same circumference, using a cylinder can increase the area of the end face, thereby arranging more sheet-like members to enhance the defoaming effect. The plurality of sheet-like members are all located on the circumferential line of the end face and arranged at intervals along the circumferential direction of the end face, which can also reduce the processing difficulty of the defoaming member 2 and the processing cost of the defoaming device 100.
[0035] Optionally, the diameter of the cylinder can be 0.1 m - 0.2 m.
[0036] Optionally, to improve the support effect of the mounting frame 1, as Figure 1 and Figure 2 shown, the mounting frame 1 includes a plurality of support beams 11. Both ends of each support beam 11 are used to connect to the inner wall of the housing 203 of the absorption tower 200. A plurality of defoaming members 2 are arranged at intervals on the support beam 11. There is a gap between adjacent support beams 11 for the desulfurization slurry to pass through. By arranging the support beams 11 connected to the inner wall of the housing 203 in the housing 203 and arranging a plurality of defoaming members 2 at intervals on the support beam 11, a defoaming device 100 covering the desulfurization slurry is formed. When the bubbles generated in the desulfurization slurry are about to exceed the designed maximum operating liquid level of the slurry, the bubbles are eliminated by the defoaming members 2.
[0037] With a plurality of support beams 11 and a plurality of defoaming members 2 arranged on each support beam 11, the number of defoaming members 2 and the contact area between the defoaming device 100 and the desulfurization slurry can be increased, thereby further improving the defoaming effect. Moreover, there is a gap between adjacent support beams 11, and the desulfurization slurry can pass through the gap, further reducing the pressure of the defoaming device 100 on the desulfurization slurry in the absorption tower 200 and ensuring the safe operation of the desulfurization absorption tower 200.
[0038] Optionally, the distance between adjacent support beams 11 can be 0.5 m - 1 m.
[0039] Optionally, as Figure 3 shown, the defoaming member 2 may further include a connecting column 23. External threads are formed on the outer peripheral surface of the connecting column 23, and threaded holes are formed on the support beam 11. The connecting column 23 is threadedly connected to the threaded holes on the support beam 11.
[0040] Optionally, the defoaming member 2 may further include a connecting beam. The connecting beam is arranged at the first end of the main body 21. Both sides of the connecting beam are respectively connected to the end face of the first end of the main body 21 and the connecting column 23. By arranging the connecting column 23 with external threads on the connecting beam and then connecting the connecting beam to the main body 21, it is beneficial to reduce the processing difficulty of the defoaming member 2. At the same time, the defoaming member 2 is composed of a plurality of separable parts, facilitating the replacement and maintenance of the defoaming member 2.
[0041] To increase the strength of the mounting frame 1, optionally, as Figure 1 and Figure 2 shown, a plurality of support beams 11 are arranged in an interlaced manner to form a network structure. The plurality of support beams 11 are arranged in an interlaced manner to form a network structure, which can support each other to form a structure with strong integrity and strong anti-interference ability. On the one hand, the weight of the entire device can be evenly distributed, and on the other hand, the anti-torsion force and lateral force of the mounting frame 1 are also improved, extending the service life of the defoaming device 100.
[0042] Optionally, as Figure 2As shown, the network structure includes a plurality of support beams 11 arranged perpendicular to each other. The support beams 11 arranged perpendicular to each other can better distribute the force received by each support beam 11, thereby enhancing the integrity and load-bearing strength of the mounting frame 1. Moreover, while maintaining a gap, as many support beams 11 as possible can be provided, further increasing the number of defoaming members 2 and enhancing the defoaming effect.
[0043] To further enhance the defoaming effect, optionally, as Figure 1 shown, the number of mounting frames 1 is at least two, and at least two mounting frames 1 are arranged at intervals in the vertical direction. A plurality of defoaming members 2 are provided on each mounting frame 1. Both of the two mounting frames 1 are composed of a plurality of support beams 11, and a plurality of defoaming members 2 are provided on each support beam 11. The two mounting frames 1 are arranged at intervals in the vertical direction. When bubbles are generated in the desulfurization slurry, the mounting frame 1 closer to the liquid surface of the desulfurization slurry first contacts the bubbles. The desulfurization slurry with bubbles approaches the other mounting frame 1 through the gap between the support beams 11, contacts the defoaming members 2 on the other mounting frame 1, and undergoes another defoaming process. With such an arrangement, the contact area between the defoaming device 100 and the desulfurization slurry can be increased, so that as many bubbles in the desulfurization slurry as possible contact the defoaming members 2, further enhancing the defoaming effect.
[0044] Optionally, as Figure 1 shown, the projections of the support beams 11 on two adjacent mounting frames 1 in the vertical direction are arranged in an angular staggered manner, that is, the projections of the support beams 11 on two adjacent mounting frames 1 in the vertical direction are arranged in a preset angle in a staggered manner. Both of the two mounting frames 1 arranged in a staggered manner are composed of a plurality of support beams 11. Since the two mounting frames 1 are arranged at intervals in the vertical direction, the gaps between the plurality of support beams 11 are also staggered with each other. That is, the foam overflowing from the gap of one mounting frame 1 will first contact the defoaming members 2 on the other mounting frame 1 when reaching the other mounting frame 1, thereby further eliminating the foam that has not been eliminated at the first mounting frame 1 and enhancing the defoaming effect.
[0045] The present disclosure does not limit the angle between the support beams 11 on the two mounting frames 1 arranged in a staggered manner. In an embodiment provided by the present disclosure, this angle can be 45° - 60°, that is, the projections of the support beams 11 on two adjacent mounting frames 1 in the vertical direction are arranged in a preset angle with a degree of 45° - 60° in a staggered manner.
[0046] As the second aspect provided by the present disclosure, as Figure 1 and Figure 4As shown in the figure, the present disclosure provides an absorption tower 200, which includes a housing 203 and the defoaming device 100 of the above absorption tower. A cavity for accommodating desulfurization slurry is formed inside the housing 203. The defoaming device 100 is installed in the cavity and connected to the inner wall of the housing 203. A flue gas inlet 201 and a flue gas outlet 202 are formed on the absorption tower 200 for the flue gas to be desulfurized and the desulfurized flue gas to pass through.
[0047] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0048] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.
[0049] Furthermore, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.
Claims
1. An antifoaming device for an absorption tower, characterized in that, Comprising a mounting frame and a plurality of defoaming members, the mounting frame is adapted to be disposed within the housing of the absorption tower and adapted to be connected to the inner wall of the housing, and the plurality of defoaming members are adapted to be spaced apart on a side of the mounting frame facing the desulfurization slurry within the absorption tower. The defoaming member includes a main body and a plurality of defoaming portions. A first end of the main body is connected to the mounting frame, and the plurality of defoaming portions are spaced apart on a second end of the main body. The defoaming portion has a defoaming end for contacting bubbles on the surface of the desulfurization slurry within the absorption tower.
2. The defoaming device according to claim 1, characterized in that, The defoaming portion is a sheet-like member. One end of the sheet-like member is connected to the main body, and the other end of the sheet-like member has the defoaming end.
3. The defoaming device according to claim 2, characterized in that, The main body is a cylinder. A first end of the cylinder is connected to the mounting frame, and the plurality of sheet-like members are spaced apart along the circumference of the cylinder on an end face of a second end of the cylinder, and the plurality of sheet-like members are all located on a circumferential line of the end face.
4. The defoaming device according to claim 1, characterized in that, The mounting frame includes a plurality of support beams. Both ends of each support beam are adapted to be connected to the inner wall of the housing of the absorption tower. A plurality of the defoaming members are spaced apart on the support beam. There is a gap between adjacent support beams for the desulfurization slurry to pass through.
5. The defoaming device according to claim 4, characterized in that, The plurality of support beams are arranged in an interlaced manner to form a network structure.
6. The defoaming device according to claim 5, characterized in that, The network structure includes a plurality of support beams arranged perpendicular to each other.
7. The defoaming device according to claim 4, characterized in that, The number of the mounting frames is at least two. At least two mounting frames are spaced apart in the vertical direction, and the plurality of defoaming members are provided on each mounting frame.
8. The defoaming device according to claim 7, wherein, The projections of the support beams on adjacent two mounting frames are arranged in an angular interlaced manner in the vertical direction.
9. The defoaming device according to claim 8, characterized in that, The angle is 45° - 60°.
10. An absorption tower, characterized in that, Comprising a housing and the defoaming device of the absorption tower according to any one of claims 1 - 9. A cavity for accommodating the desulfurization slurry is formed within the housing. The defoaming device is installed within the cavity and connected to the inner wall of the housing.