Tray structure for desulfurizing tower

Abstract

The tray structure comprises a tower body and a tray main body, the tray main body is arranged in the tower body, the tray structure further comprises a connecting ring and connecting pieces, the connecting ring is fixed outside the tray main body in a sleeved mode, the connecting ring is connected to the tower body through the connecting pieces, and each connecting piece comprises a threaded blind hole, an annular clamping groove and a connecting assembly. The threaded blind holes are formed in the outer ring face of the connecting ring, annular clamping grooves are coaxially formed outside the threaded blind holes, a connecting assembly is arranged on the circumferential wall, opposite to an opening of each annular clamping groove, of the tower body and comprises a round hole, a bearing cylinder and a screw rod, the opening end of each bearing cylinder is fixed in the outer end of the corresponding round hole, and the screw rod is located in the corresponding bearing cylinder. The outer end of the screw is in threaded connection with the closed end of the bearing cylinder, the inner end is in threaded connection with the threaded blind hole, and a protective cylinder is arranged in a round hole between the bearing cylinder and the connecting ring. The utility model solves the problem that the tray in the desulfurizing tower is connected into the desulfurizing tower through bolts, and the bolts and nuts are easy to rust.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization tower technology, specifically to a tray structure for a desulfurization tower. Background Technology

[0002] A desulfurization tower is a tower-type device used to remove sulfides (mainly sulfur dioxide, SO2) from flue gas. Sulfur dioxide in the flue gas comes into contact with and mixes with a desulfurizing agent (such as limestone slurry) inside the tower. The desulfurization tower is equipped with trays to guide the flue gas to distribute evenly within the tower, ensuring sufficient contact between the flue gas and the desulfurizing agent (such as limestone paste), thereby improving desulfurization efficiency. During the desulfurization process, acidic gases such as sulfur dioxide (SO2) and sulfur trioxide (SO3) in the flue gas combine with water vapor to form corrosive substances such as sulfuric acid and sulfurous acid, which corrode the tray material.

[0003] Once the pallet is corroded, it needs to be replaced and repaired. However, the pallet is usually installed in the desulfurization tower body by welding or detachable connection. Welding makes pallet replacement and repair difficult. Detachable connection is usually made by bolts inside the tower body. Bolts inside the tower body are also susceptible to corrosive substances, causing the nuts on the bolts to rust and making pallet disassembly difficult. Summary of the Invention

[0004] This utility model addresses the problem that bolts and nuts are easily rusted when the trays inside the desulfurization tower are bolted together. It provides a tray structure for desulfurization towers that allows for easy disassembly and installation of the trays inside the desulfurization tower.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A tray structure for a desulfurization tower includes a tower body and a tray body. The tray body is located inside the tower body and also includes a connecting ring and connectors. The connecting ring is sleeved and fixed outside the tray body. The connecting ring is connected to the tower body via multiple connectors. Each connector includes a threaded blind hole, an annular groove, and a connecting assembly. The threaded blind hole is located on the outer ring surface of the connecting ring. An annular groove is coaxially provided outside the threaded blind hole. A connecting assembly is provided on the tower body peripheral wall opposite the opening of each annular groove. The connecting assembly includes a circular hole, a bearing cylinder, and a screw. The circular hole is located on the tower body peripheral wall. The open end of the bearing cylinder is fixed inside the outer end of the circular hole. The screw is located inside the bearing cylinder. The outer end of the screw is threaded to the closed end of the bearing cylinder, and the inner end is threaded to the threaded blind hole. A protective cylinder is provided inside the circular hole on the inner side of the bearing cylinder. The closed end of the protective cylinder is fixedly connected to the screw, and the open end extends into the annular groove.

[0007] Furthermore, the diameter of the circular hole corresponds to the outer diameter of the corresponding annular groove, and the circular hole and the annular groove are coaxially arranged; the bearing cylinder is a cylinder whose outer diameter corresponds to the outer diameter of the annular groove and whose inner diameter corresponds to the inner diameter of the annular groove.

[0008] Furthermore, the closed end of the bearing cylinder is located outside the tower body, and the outer end of the screw is connected to a rotating plate.

[0009] Furthermore, when the open end of the protective cylinder contacts the inner bottom surface of the annular groove on the connecting member, the closed end of the protective cylinder is located in the circular hole and has a gap to the open end of the corresponding bearing cylinder, and the inner end of the screw is close to the inner bottom surface of the corresponding threaded blind hole; when the closed end of the protective cylinder contacts the open end of the bearing cylinder on the connecting member, both the open end of the protective cylinder and the inner end of the screw (13) are located in the circular hole.

[0010] Furthermore, a bearing plate is horizontally fixed on the inner wall of the tower body on the lower side of each connector, and each bearing plate is provided with a positioning hole. The connecting ring is provided with a plurality of positioning rods corresponding to the positioning holes, with their free ends passing through the positioning holes.

[0011] Furthermore, the connecting ring is a ring made of polytetrafluoroethylene (PTFE), and the protective sleeve is a cylinder made of PTFE.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] In this invention, after the screw thread on the connecting ring is connected to the threaded blind hole on the connecting member, the open end of the protective sleeve on the screw extends into the annular groove, allowing the connecting ring to connect with the tower body and the tray body to be fixed inside the tower body. The screw is isolated from the gap between the connecting ring and the tower body by the protective sleeve, preventing corrosive substances from seeping into the screw and threaded blind hole through the gap, thus avoiding corrosion of the connection between the screw and the threaded blind hole. Due to the obstruction of the protective sleeve, corrosive substances will also not come into contact with the screw inside the bearing sleeve. Therefore, this invention avoids corrosion of the screw and threaded blind hole, and facilitates the assembly and disassembly of the tray body. Attached Figure Description

[0014] Figure 1 This is a sectional front view of the present invention;

[0015] Figure 2 yes Figure 1 Cross-sectional view at point AA (tray body hidden);

[0016] Figure 3 This is a structural schematic diagram of the tray body and connecting ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the connecting component of this utility model;

[0018] Figure 5 This is a structural schematic diagram of the screw connection protective cylinder of this utility model.

[0019] The attached diagram is labeled as follows: 1. Tower body, 2. Tray body, 3. Connecting ring, 4. Threaded blind hole, 5. Annular groove, 6. Round hole, 7. Bearing cylinder, 8. Protective cylinder, 9. Bearing plate, 10. Positioning hole, 11. Positioning rod, 12. Rotating plate, 13. Screw. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-5 As shown, a tray structure for a desulfurization tower includes a tower body 1 and a tray body 2. The tray body 2 is disposed inside the tower body 1. It also includes a connecting ring 3 and connecting components. The connecting ring 3 is a circular ring with an outer diameter corresponding to the inner wall of the tower body 1. The connecting ring 3 is sleeved and fixed outside the tray body 2. The connecting ring 3 is connected to the tower body 1 via multiple connecting components. The multiple connecting components are arranged in a circular array along the central axis of the connecting ring 3. Each connecting component includes a threaded blind hole 4, an annular groove 5, and a connecting assembly. The threaded blind hole 4 is disposed on the outer ring surface of the connecting ring 3, with its opening facing the inner wall of the tower body 1. An annular groove 5 is coaxially disposed outside the threaded blind hole 4. The annular groove 5 and the threaded blind hole 4 are coaxially arranged, with their openings facing the inner wall of the tower body 1. The inner diameter of the annular groove 5 is... The diameter of the threaded blind hole is larger than that of the annular groove 5. A connecting assembly is provided on the circumferential wall of the tower body 1 opposite to the opening of the annular groove 5. The connecting assembly includes a circular hole 6, a bearing cylinder 7 and a screw 13. The circular hole 6 is opened on the circumferential wall of the tower body 1. The bearing cylinder 7 is open at one end and closed at the other end. The open end of the bearing cylinder 7 is fixed inside the outer end of the circular hole 6. The inner end of the circular hole 6 is facing the central axis of the tower body 1, and the other end is the outer end. The screw 13 is located inside the bearing cylinder 7. The outer end of the screw 13 is threaded to the closed end of the bearing cylinder 7, and the inner end is threaded to the threaded blind hole 4. A protective cylinder 8 is provided in the circular hole 6 inside the bearing cylinder 7. The protective cylinder 8 is a cylinder with one end open and the other end closed. The closed end of the protective cylinder 8 is fixedly connected to the screw 13, and the open end extends into the annular groove 5.

[0022] The diameter of the circular hole 6 corresponds to the outer diameter of the corresponding annular groove 5, and the circular hole 6 and the annular groove 5 are coaxially arranged; the bearing cylinder is a cylinder whose outer diameter corresponds to the outer diameter of the annular groove 5 and whose inner diameter corresponds to the inner diameter of the annular groove 5.

[0023] The closed end of the bearing cylinder 7 is located outside the tower body 1, and the outer end of the screw 13 is connected to the rotating plate 12.

[0024] When the open end of the protective cylinder 8 contacts the inner bottom surface of the annular groove 5 on the connecting member (the inner bottom surface of the annular groove 5 is the side opposite to the opening of the annular groove 5), the closed end of the protective cylinder 8 is located inside the circular hole 6 and has a gap to the open end of the corresponding bearing cylinder 7, and the inner end of the screw 13 is close to the inner bottom surface of the corresponding threaded blind hole 4 (the inner bottom surface of the threaded blind hole 4 is the side opposite to the opening of the threaded blind hole 4); when the closed end of the protective cylinder 8 contacts the open end of the bearing cylinder 7 on the connecting member, both the open end of the protective cylinder 8 and the inner end of the screw 13 are located inside the circular hole 6.

[0025] A bearing plate 9 is horizontally fixed on the inner wall of the tower body 1 on the lower side of each connector. Each bearing plate 9 is provided with a positioning hole 10. The connecting ring 3 is provided with a plurality of positioning rods 11 corresponding to the positioning holes 10, with their free ends passing through the positioning holes 10. When the bottom surface of the connecting ring 3 contacts the bearing plate 9, the opening of the annular groove 5 on each connector faces the corresponding round hole 6.

[0026] The connecting ring 3 is a ring made of polytetrafluoroethylene (PTFE), and the protective cylinder 8 is a cylinder made of PTFE; PTFE has excellent corrosion resistance.

[0027] Before installation, rotate each screw 13 so that each screw 13 drives the protective cylinder 8 to move toward the closed end of the bearing cylinder 7 until the closed end of each protective cylinder 8 contacts the open end of the corresponding bearing cylinder 7. At this time, the open end of the protective cylinder 8 and the inner end of the screw 13 are both located in the round hole 6, so that the protective cylinder 8 and the screw 13 do not affect the movement of the connecting ring 3.

[0028] During installation, the connecting ring 3 drives the pallet body 2 to move from top to bottom, and causes the free end of each positioning rod 11 to pass through the corresponding positioning hole 10 until the connecting ring 3 contacts the bearing plate 9. At this time, the opening of the annular groove 5 on each connector faces the corresponding round hole 6. The screw 13 is rotated in the opposite direction, causing each screw 13 to drive the protective cylinder 8 to move away from the closed end of the bearing cylinder 7 until the open end of each protective cylinder 8 extends into the corresponding annular groove 5 and contacts the inner bottom surface of the annular groove 5. At this time, the inner end of the screw 13 is threaded to the corresponding threaded blind hole 4, and the connecting ring 3 of the pallet body 2 is connected to the tower body 1 through multiple connectors.

[0029] Furthermore, after the connecting ring 3 is connected to the tower body 1 through multiple connectors, the screw 13 between the connecting ring 3 and the tower body 1 is covered with a protective sleeve 8. Corrosive substances inside the tower body 1 are isolated by the protective sleeve 8 and will not seep into the screw 13 through the gap between the connecting ring 3 and the tower body 1. Due to the obstruction of the protective sleeve 8, corrosive substances will not come into contact with the screw 13 inside the bearing sleeve 7, thus preventing the connection between the screw 13 and the threaded blind hole 4 from rusting.

[0030] During disassembly, simply rotate the screw 13 so that the open end of the protective cylinder 8 and the inner end of the screw 13 are both inside the round hole 6. This releases the limiting effect of the connecting ring 3 on the connecting assembly, allowing the connecting ring 3 to drive the tray body 2 upward.

[0031] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A tray structure for a desulfurization tower, comprising a tower body (1) and a tray body (2), wherein the tray body (2) is disposed within the tower body (1), characterized in that, It also includes a connecting ring (3) and connectors. The connecting ring (3) is sleeved and fixed outside the tray body (2). The connecting ring (3) is connected to the tower body (1) via multiple connectors. The connectors include threaded blind holes (4), annular grooves (5), and connecting components. The threaded blind holes (4) are located on the outer ring surface of the connecting ring (3). Annular grooves (5) are coaxially provided outside the threaded blind holes (4). Connecting components are provided on the peripheral wall of the tower body (1) opposite to the opening of each annular groove (5). The connecting components include a circular hole ( 6) Bearing cylinder (7) and screw (13). The circular hole (6) is opened on the periphery of the tower body (1). The open end of the bearing cylinder (7) is fixed inside the outer end of the circular hole (6). The screw (13) is located inside the bearing cylinder (7). The outer end of the screw (13) is threaded to the closed end of the bearing cylinder (7), and the inner end is threaded to the threaded blind hole (4). A protective cylinder (8) is provided in the circular hole (6) inside the bearing cylinder (7). The closed end of the protective cylinder (8) is fixedly connected to the screw (13), and the open end extends into the annular groove (5).

2. The tray structure for a desulfurization tower according to claim 1, characterized in that, The diameter of the circular hole (6) corresponds to the outer diameter of the corresponding annular groove (5), and the circular hole (6) and the annular groove (5) are coaxially arranged; the bearing cylinder is a cylinder whose outer diameter corresponds to the outer diameter of the annular groove (5) and whose inner diameter corresponds to the inner diameter of the annular groove (5).

3. The tray structure for a desulfurization tower according to claim 1, characterized in that, The closed end of the bearing cylinder (7) is located outside the tower body (1), and the outer end of the screw (13) is connected to the rotating plate (12).

4. The tray structure for a desulfurization tower according to claim 1, characterized in that, When the open end of the protective cylinder (8) contacts the inner bottom surface of the annular groove (5) on the connecting piece, the closed end of the protective cylinder (8) is located in the circular hole (6) and there is a gap to the open end of the corresponding bearing cylinder (7), and the inner end of the screw (13) is close to the inner bottom surface of the corresponding threaded blind hole (4); when the closed end of the protective cylinder (8) contacts the open end of the bearing cylinder (7) on the connecting piece, both the open end of the protective cylinder (8) and the inner end of the screw (13) are located in the circular hole (6).

5. The tray structure for a desulfurization tower according to claim 1, characterized in that, Each of the connecting parts has a horizontally fixed bearing plate (9) on the inner wall of the tower body (1) on the lower side. Each bearing plate (9) has a positioning hole (10). The connecting ring (3) has multiple positioning rods (11) corresponding to the positioning hole (10) and whose free ends pass through the positioning hole (10).

6. The tray structure for a desulfurization tower according to claim 1, characterized in that, The connecting ring (3) is a ring made of polytetrafluoroethylene, and the protective cylinder (8) is a cylinder made of polytetrafluoroethylene.

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