Desulfurizing tower
By installing inclined spray components and flow-gathering rings on the inner wall of the desulfurization tower, the problem of wear on the inner wall of the desulfurization tower is solved, achieving the spraying effect while avoiding erosion of the inner wall and extending the service life of the desulfurization tower.
Patent Information
- Application Number
- CN202422606073.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The inner wall of the wet flue gas desulfurization tower is worn by the desulfurization slurry sprayed from the nozzles, resulting in slurry leakage and unnecessary shutdown for maintenance.
A first spray assembly and a flow-collecting ring are installed on the inner wall of the desulfurization tower. The spray assembly sprays the desulfurization slurry at an angle toward the center to avoid directly scouring the inner wall, and the flow-collecting ring catches the sprayed liquid to prevent wear.
It effectively avoids wear on the inner wall of the desulfurization tower, extends its service life, and maintains spray coverage and desulfurization efficiency.
Smart Images
Figure CN223788308U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of flue gas desulfurization technology, and more specifically, to a desulfurization tower. Background Technology
[0002] Wet flue gas desulfurization (FGD) towers have fewer internal components and are less prone to scaling, making them widely used. In larger diameter FGD towers, to ensure coverage, the nozzles around the spray layer must be close to the tower wall. This installation method is traditional and prevalent. However, this installation method causes the desulfurization slurry sprayed by the nozzles to continuously scour the tower wall during operation, leading to frequent wear and tear and slurry leakage. This results in unnecessary downtime for maintenance and economic losses for users. Utility Model Content
[0003] The purpose of this disclosure is to provide a desulfurization tower that can solve the problem of wear and tear on the inner wall of the desulfurization tower caused by erosion.
[0004] To achieve the above objectives, this disclosure provides a desulfurization tower, which includes a desulfurization tower body and a first spray assembly. The first spray assembly includes a first spray pipe and a plurality of first spray elements. The first spray pipe is arranged around the inner wall of the desulfurization tower body, and the plurality of first spray elements are evenly distributed at intervals in the first spray pipe. The first spray elements are inclined downward and used to spray desulfurization slurry toward the center of the desulfurization tower body.
[0005] Optionally, the first spray element and the desulfurization tower body have a first included angle, which is 30°~45°.
[0006] Optionally, the desulfurization tower spray structure includes a second spray assembly, the second spray assembly is provided with a plurality of second spray elements, the plurality of second spray elements are spaced apart from the inner wall of the desulfurization tower body, the first spray assembly is located below the second spray assembly, and there is a first distance between the first spray assembly and the second spray assembly, the first distance being 500~600mm.
[0007] Optionally, the desulfurization tower further includes a flow-gathering ring, which is located below the first spray assembly.
[0008] Optionally, the flow-collecting ring has an inner end and an outer end, the outer end being connected to the inner wall of the desulfurization tower body, and the line connecting the inner end and the outer end having a second included angle with the central axis of the flow-collecting ring.
[0009] Optionally, the second included angle is 10~20°.
[0010] Optionally, the side of the flow-gathering ring facing away from the inner wall of the desulfurization tower body is constructed in a sawtooth shape.
[0011] Optionally, the radius of the inner ring of the flow-gathering ring is smaller than the radius of the first spray pipe.
[0012] Optionally, there is a second distance between the first spray assembly and the flow-concentrating ring, the second distance being 200~300mm.
[0013] Optionally, multiple first spray components and multiple second spray components are respectively configured, and the multiple first spray components and multiple second spray components are arranged alternately at intervals in the axial direction of the desulfurization tower body, and the flow-gathering ring is arranged below each first spray component.
[0014] Through the above technical solution, multiple first spray elements can be arranged in a ring around the inner wall of the desulfurization tower body along the first spray pipe. Thus, the multiple first spray elements can jointly spray desulfurization slurry towards the center of the desulfurization tower body. In this way, the outermost nozzles of the conventional spray layer can move towards the center, and the multiple first spray elements arranged around the inner wall of the desulfurization tower body can supplement the conventional spray layer. While ensuring the spray coverage of the desulfurization tower body, the spray direction of the first spray elements can be kept away from the inner wall of the desulfurization tower body to avoid erosion of the inner wall. With the above structure, by setting the first spray assembly on the inner wall of the desulfurization tower body, the sprayed desulfurization slurry can be prevented from eroding the inner wall of the desulfurization tower, thus avoiding wear and leakage. Therefore, the service life of the desulfurization tower is extended while ensuring the spraying effect.
[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of a desulfurization tower provided according to an embodiment of this disclosure;
[0018] Figure 2 yes Figure 1 A magnified view of a portion at point A;
[0019] Figure 3 yes Figure 1 Cross-sectional view at point AA;
[0020] Figure 4 yes Figure 1 Cross-sectional view at BB.
[0021] Explanation of reference numerals in the attached figures
[0022] 1-Desulfurization tower body, 2-Spray structure, 21-First spray assembly, 211-First spray pipe, 212-First spray element, 22-Second spray assembly, 221-Second spray element, 3-Gathering ring, α-First included angle, β-Second included angle, L1-First distance, L2-Second distance. Detailed Implementation
[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0024] In this disclosure, unless otherwise stated, the directional terms "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding component itself. The directional terms "upper" and "lower" generally refer to "upper" and "lower" relative to each other in the direction of gravity when the corresponding component is in use. Furthermore, the use of terms such as "first" and "second" is for distinguishing different components and does not indicate sequence or importance. In addition, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same elements. Those skilled in the art should understand that the above definitions are for explanation and illustration only and should not be construed as limiting the present disclosure.
[0025] According to a specific embodiment of this disclosure, refer to Figures 1 to 4 As shown, a desulfurization tower is provided. The desulfurization tower includes a desulfurization tower body 1 and a first spray assembly 21. The first spray assembly 21 includes a first spray pipe 211 and a plurality of first spray elements 212. The first spray pipe 211 is arranged around the inner wall of the desulfurization tower body 1. The plurality of first spray elements 212 are evenly distributed at intervals on the first spray pipe 211. The first spray elements 212 are inclined downward and used to spray desulfurization slurry towards the center of the desulfurization tower body 1.
[0026] Through the above technical solution, multiple first spray elements 212 can be arranged around the inner wall of the desulfurization tower body 1 along the first spray pipe 211. Thus, the multiple first spray elements 212 can collectively spray desulfurization slurry towards the center of the desulfurization tower body 1. This allows the outermost nozzles of the conventional spray layer to move towards the center, and the multiple first spray elements 212 arranged around the inner wall of the desulfurization tower body 1 can supplement the conventional spray layer. While ensuring the spray coverage of the desulfurization tower body 1, the spray direction of the first spray elements 212 can be kept away from the inner wall of the desulfurization tower body 1 to avoid erosion of the inner wall. With the above structure, by setting the first spray assembly 21 on the inner wall of the desulfurization tower body 1, the sprayed desulfurization slurry can be prevented from eroding the inner wall of the desulfurization tower, thus avoiding wear and leakage. Therefore, the service life of the desulfurization tower is extended while ensuring the spraying effect.
[0027] In some embodiments of this disclosure, reference is made to Figure 1 and Figure 2 As shown, the first spray element 212 and the cross-section of the desulfurization tower body 1 have a first included angle α, which is 30°~45°. This ensures that the spray direction of the first spray element 212 when spraying the desulfurization slurry has a first included angle α with the cross-section of the desulfurization tower body 1, preventing the first spray element 212 from spraying back towards the inner wall of the desulfurization tower body 1 on the opposite side in a horizontal direction, or from spraying towards the inner wall of the desulfurization tower body 1 on the same side in a vertical direction. Therefore, by limiting the first included angle α to 30°~45°, it is ensured that the first spray element 212 can spray the desulfurization slurry towards the center of the desulfurization tower body 1, while simultaneously ensuring the coverage of the desulfurization tower body 1.
[0028] In some embodiments of this disclosure, reference is made to Figure 1 and Figure 4As shown, the desulfurization tower includes a second spray assembly 22, which has multiple second spray elements 221. These second spray elements 221 are spaced apart from the inner wall of the desulfurization tower body 1. A first spray assembly 21 is located below the second spray assembly 22, and a first distance L1, which is 500-600 mm, exists between the first spray assembly 21 and the second spray assembly 22. By placing the first spray assembly 21 below the second spray assembly 22, the first spray assembly 21 can supplement the second spray assembly 22, ensuring spray coverage while avoiding erosion of the inner wall of the desulfurization tower body 1. Meanwhile, by setting the distance between the first spray assembly 21 and the second spray assembly 22 to 500~600mm, on the one hand, this avoids short-circuiting of flue gas caused by excessive distance between the second spray assembly 22 and the first spray assembly 21; on the other hand, it ensures that the first spray assembly 21 can be close to the second spray assembly 22 to supplement it, while avoiding interference between the desulfurization slurry sprayed by the second spray assembly 22 and the desulfurization slurry sprayed by the first spray assembly 21. Here, "flue gas short-circuiting" refers to flue gas leaving the desulfurization tower body 1 prematurely without undergoing sufficient washing and chemical reaction treatment within the tower body 1, bypassing the normal treatment process through certain paths.
[0029] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the desulfurization tower also includes a flow-collecting ring 3, which is located below the first spray assembly 21. In this way, the flow-collecting ring 3 can receive the desulfurization slurry sprayed by the first spray assembly 21 and the second spray assembly 22, preventing the angled sprayed desulfurization slurry from scouring the inner wall of the desulfurization tower body 1. Simultaneously, the flow-collecting ring 3 can absorb short-circuiting or escape of flue gas within the inner circumference of the desulfurization tower body 1, ensuring that the flue gas can pass through the first spray assembly 21 and the second spray assembly 22 for desulfurization treatment.
[0030] The flow-gathering ring 3 has a through hole in the center, which allows the desulfurization slurry sprayed onto the flow-gathering ring to flow directly downward through the through hole, or to flow along the flow-gathering ring 3 to the through hole in the middle and continue to flow downward.
[0031] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the condensing ring 3 has an inner end and an outer end. The outer end is connected to the inner wall of the desulfurization tower body 1, and the line connecting the inner and outer ends forms a second angle with the central axis of the condensing ring 3. This allows the condensing ring to be tilted downwards, with the outer end higher than the inner end. This prevents solid deposits in the desulfurization slurry from accumulating on the condensing ring 3, thus avoiding scaling. Furthermore, the downward tilt of the condensing ring 3 facilitates the flow of the desulfurization slurry to form a new liquid film / surface, allowing the slurry to contact and react with the flue gas, thereby improving desulfurization efficiency.
[0032] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the second included angle β is 10~20°. This allows for an angle between the converging ring 3 and the central axis of the desulfurization tower body 1, enabling the plane of the converging ring 3 to be tilted downwards, so that the desulfurization slurry received by the converging ring 3 flows downwards, avoiding deposition. Simultaneously, by setting the included angle to 10~20°, it avoids two problems: firstly, if the angle is too small, the converging cross-section of the converging ring 3 for the desulfurization slurry will be smaller, and the resistance of the flue gas flow through the converging ring 3 will increase; secondly, it avoids an excessively large angle, which would cause deposits in the sprayed desulfurization slurry to accumulate on the converging ring 3, and in cases of excessive deposits, even cause the converging ring 3 to collapse, affecting its anti-erosion effect on the inner wall of the desulfurization tower body 1.
[0033] In some embodiments of this disclosure, reference is made to Figure 4 As shown, the side of the flow-gathering ring 3 facing away from the inner wall of the desulfurization tower body 1 is constructed in a sawtooth shape. This sawtooth inner ring can turbulentize and enhance the flow distribution of the flue gas, allowing the sprayed desulfurization slurry to effectively desulfurize the flue gas and improve the treatment efficiency. Simultaneously, it increases the area of the desulfurization slurry film / surface formed at the edge of the flow-gathering ring 3, further increasing the contact area between the desulfurization slurry and the flue gas, thus improving desulfurization efficiency.
[0034] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the radius of the inner ring of the flow-collecting ring 3 is smaller than the radius of the first spray pipe 211. This ensures that the flow-collecting ring 3 can receive the desulfurization slurry sprayed by the first spray element 212 on the first spray pipe 211, and that the flow-collecting ring 3 has a sufficient flow-collecting cross section when receiving the desulfurization slurry. Thus, the flow-collecting ring 3 can provide an anti-erosion effect on the inner wall of the desulfurization tower body 1.
[0035] In some embodiments of this disclosure, reference is made to Figure 1 As shown, there is a second distance L2 between the first spray assembly 21 and the cohesive ring 3, which is 200~300mm. Since the spray direction of the first spray element 212 forms an angle with the cross-section of the desulfurization tower body 1, by placing the cohesive ring 3 200~300mm below the first spray assembly 21, the cohesive ring 3 can effectively catch the desulfurization slurry sprayed by the first spray element 212 before it touches the inner wall of the desulfurization tower body 1, thus preventing erosion of the inner wall of the desulfurization tower. This allows the cohesive ring 3 to protect the inner wall of the desulfurization tower and avoids the situation where the distance between the cohesive ring 3 and the first spray assembly 21 is too small, which would affect the spray atomization effect of the first spray element 212.
[0036] In some embodiments of this disclosure, reference is made to Figure 1As shown, multiple first spray components 21 and multiple second spray components 22 are respectively configured, and the multiple first spray components 21 and multiple second spray components 22 are arranged alternately in the axial direction of the desulfurization tower body 1. The flow-gathering ring is arranged below each first spray component. In this way, each first spray component 21 can supplement the second spray component 22, so as to ensure the spray coverage area and ensure that the inner wall of the desulfurization tower body 1 in the axial direction can be protected against erosion.
[0037] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0039] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A desulfurization tower, the desulfurization tower comprising a desulfurization tower body, characterized in that, The desulfurization tower includes a first spray assembly, which includes a first spray pipe and a plurality of first spray elements. The first spray pipe is arranged around the inner wall of the desulfurization tower body, and the plurality of first spray elements are evenly distributed at intervals in the first spray pipe. The first spray elements are inclined downward and used to spray desulfurization slurry towards the center of the desulfurization tower body. The desulfurization tower also includes a flow-gathering ring, which is located below the first spray assembly. The flow-gathering ring has an inner end and an outer end. The outer end is connected to the inner wall of the desulfurization tower body, and the line connecting the inner end and the outer end has a second included angle with the central axis of the flow-gathering ring.
2. The desulfurization tower according to claim 1, characterized in that, The first spray element and the cross-section of the desulfurization tower body have a first included angle, which is 30°~45°.
3. The desulfurization tower according to claim 1, characterized in that, The desulfurization tower includes a second spray assembly, which has multiple second spray elements. The multiple second spray elements are spaced apart from the inner wall of the desulfurization tower body. The first spray assembly is located below the second spray assembly. There is a first distance between the first spray assembly and the second spray assembly, which is 500~600mm.
4. The desulfurization tower according to claim 1, characterized in that, The second included angle is 10~20°.
5. The desulfurization tower according to claim 1, characterized in that, The side of the flow-gathering ring that faces away from the inner wall of the desulfurization tower body has a sawtooth shape.
6. The desulfurization tower according to claim 1, characterized in that, The radius of the inner ring of the flow-gathering ring is smaller than the radius of the first spray pipe.
7. The desulfurization tower according to claim 1, characterized in that, There is a second distance between the first spray assembly and the flow-gathering ring, the second distance being 200~300mm.
8. The desulfurization tower according to any one of claims 1-7, characterized in that, The first spray assembly and the second spray assembly are configured in multiples, and the multiple first spray assemblies and the multiple second spray assemblies are arranged alternately at intervals in the axial direction of the desulfurization tower body. The flow-gathering ring is arranged below each first spray assembly.