Improved liquid trap periphery sealing structure
By adopting a combined structure of a deflector, a fixed bracket, a clamp, a pallet and a concave liquid collecting tray around the liquid collecting tray, the sealing problem caused by the difference in the material of the liquid collecting tray and the desulfurization tower wall panel is solved, and effective liquid is achieved Phase separation and operation stability avoid slurry leakage and vibration displacement.
Patent Information
- Application Number
- CN202323610193.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In the environmental protection facilities for ammonia desulfurization of coal-fired boilers, the difference in the material between the liquid collecting tray and the desulfurization tower wall panel leads to thermal expansion and deformation, resulting in cracking and leakage at the seal, affecting the normal operation of the desulfurization system, especially in the low-temperature areas in the north, the temperature difference is more obvious.
The combined structure of the deflector plate, the deflector plate fixing bracket, the pallet, the support angle frame and the concave liquid collecting plate is adopted. The deflector plate is connected to the desulfurization tower wall plate, and the pallet is welded to form a whole, and the concave shape is A 10-20mm gap is left between the liquid collecting tray and the tower wall panel to support the liquid collecting tray, and is fastened and connected by alloy bolts to prevent vibration and fall off.
It effectively prevents cracking and leakage around the liquid collecting tray, realizes separation of liquid phase media, improves the sealing and operating stability in the desulfurization tower, and reduces the difficulty of maintenance.
Smart Images
Figure CN222163098U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing structures, and more specifically, to an improved peripheral sealing structure of a liquid collector. Background Art
[0002] In the environmental protection facilities for ammonia desulfurization of coal-fired boilers, in order to realize the desulfurization zoning design in the absorption tower, a liquid collecting pan is usually set below the spray layer to discharge the slurry after the reaction into the container outside the tower. The material of the liquid collecting pan is mostly made of FRP, and it is fixed to the support beam inside the tower through connectors such as clamps. The liquid collecting pan and the inner wall of the tower are generally sealed by overlapping glass flakes. Due to the vibration of the liquid collecting pan body, after long-term operation, the adhesion and sealing between the liquid collecting pan and the wall panel of the desulfurization tower are prone to cracking and leakage; especially for low-temperature areas in the north, there is a large temperature difference during the start-up and shutdown of the boiler, and the different thermal expansion coefficients between different materials will also cause deformation and cracking of the connection of the inner wall of the tower. Utility Model Content
[0003] The purpose of the utility model is to address the deficiencies of the prior art and propose an improved peripheral sealing structure for a liquid collector, comprising: a guide plate, a guide plate fixing bracket, a clamping plate, a supporting plate, a supporting angle bracket and a concave liquid collecting tray;
[0004] Among them, the guide plate is connected to the desulfurization tower wall panel, and multiple guide plate fixing brackets are welded to the desulfurization tower wall panel to support the guide plate; the clamping plate is welded on the support plate to form a whole, and is used to clamp the guide plate fixing bracket; the top of the concave liquid collecting tray is fitted with the bottom of the support plate, and a gap of 10 to 20 mm is left between the concave liquid collecting tray and the desulfurization tower wall panel, and the supporting angle bracket is used to support the concave liquid collecting tray.
[0005] Preferably, it also includes alloy bolts; the two clamping plates clamp the guide plate fixing bracket and are fastened and connected by the alloy bolts.
[0006] Preferably, the guide plate fixing bracket and the clamping plate are provided with elliptical holes.
[0007] Preferably, the guide plate is connected to the desulfurization tower wall plate by scaling or welding.
[0008] The beneficial effects of the utility model are:
[0009] 1. A gap of 10 to 20 mm is left between the concave liquid collecting tray and the wall plate of the desulfurization tower in the utility model, which can prevent cracking at the connection between the periphery of the non-metallic liquid collecting tray and the desulfurization tower, avoid slurry leakage to the bottom, and effectively realize the separation of liquid phase medium in the desulfurization tower.
[0010] 2. The desulfurization tower in the utility model is welded with a plurality of fixed brackets on the circumferential wall plate to support the guide plate to prevent it from falling off during use.
[0011] 3. The utility model is provided with a support plate which fits the concave liquid collecting tray to prevent the concave liquid collecting tray from vibrating and shifting during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A schematic diagram of the peripheral sealing structure of the improved liquid collector provided by the utility model;
[0013] Figure 2 for Figure 1 A-direction view in the figure;
[0014] Explanation of the reference numerals: 1, guide plate; 2, guide plate fixing bracket; 3, clamping plate; 4, support plate; 5, supporting angle bracket; 6, concave liquid collecting tray; 7, alloy bolt. DETAILED DESCRIPTION
[0015] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
[0016] Embodiment 1:
[0017] At present, the liquid collecting tray is mostly fixed with a circular flat plate and a support beam by bolts. In order to prevent the slurry of the spray layer from leaking to the lower part of the desulfurization tower, the liquid collecting tray is tightly bonded to the wall of the desulfurization tower and painted with standard epoxy vinyl resin. It has the following disadvantages: First, the material of the liquid collecting tray is FRP, and the material of the desulfurization tower wall is carbon steel. Due to the different expansion coefficients of the two materials, cracks are prone to appear at the bonding point after a period of operation, resulting in leakage, and the liquid phase cannot be effectively separated, which seriously affects the normal operation of the desulfurization system. Second, it is inconvenient to repair.
[0018] In this regard, Example 1 of the present application proposes an improved peripheral sealing structure of the liquid collector, such as Figure 1 and Figure 2 As shown, it includes: a guide plate 1, a guide plate fixing bracket 2, a clamping plate 3, a supporting plate 4, a supporting angle bracket 5 and a concave liquid collecting tray 6;
[0019] Among them, the guide plate 1 is connected to the desulfurization tower wall panel, and multiple guide plate fixing brackets 2 are welded to the desulfurization tower wall panel to support the guide plate 1; the clamping plate 3 is welded on the support plate 4 to form a whole, and is used to clamp the guide plate fixing bracket 2; the top of the concave liquid collecting tray 6 is fitted with the bottom of the support plate 4, and a gap of 10 to 20 mm is left between the concave liquid collecting tray 6 and the desulfurization tower wall panel, and the supporting angle bracket 5 is used to support the concave liquid collecting tray 6.
[0020] It also includes an alloy bolt 7; the two clamping plates 3 clamp the guide plate fixing bracket 2 and are fastened and connected by the alloy bolt 7.
[0021] The guide plate fixing bracket 2 and the clamping plate 3 are provided with elliptical holes.
[0022] The guide plate 1 is connected to the desulfurization tower wall plate by scaling or welding.
[0023] In addition, the liquid collecting pan adopts a concave design to facilitate the storage of slurry. A liquid collecting tank is formed between the liquid collecting pan and the air lifting cap, and the raised edge of the liquid collecting pan is at the same height as the air lifting cap fence water retaining plate, about 400-450mm. A circle of angle steel is welded along the wall of the desulfurization tower at the bottom of the liquid collecting pan and supports the liquid collecting pan together with the beam inside the tower. The flue gas at the bottom of the desulfurization tower flows upward from the opening channel of the air lifting cap.
[0024] Embodiment 2:
[0025] The main principle of the utility model is: the slurry sprayed from the spray layer tilts down along the guide plate 1 at the edge of the desulfurization tower and falls on the concave liquid collecting tray. The slurry is discharged from the desulfurization tower through the existing drain pipe. The guide plate fixing bracket 2 (multiple pieces) is welded on the desulfurization tower wall plate to fix the guide plate 1. The clamping plate 3 and the supporting plate 4 are welded to form a whole. Each group of 2 clamping plates 3 clamps the guide plate fixing bracket 2 and is fastened with alloy bolts 7. Elliptical holes are opened on the guide plate fixing bracket 2 and the clamping plate 3 to facilitate the height adjustment of the supporting plate 4 and the concave liquid collecting tray 6 to ensure a close fit. The supporting plate 4 can prevent the concave liquid collecting tray 6 from vibrating and shifting during use. The support angle frame 5 is welded on the circumference of the desulfurization tower, and the concave liquid collecting tray 6 is arranged on the support angle frame 5. A gap of 10 to 20 mm is left between the concave liquid collecting tray 6 and the desulfurization tower wall plate.
Claims
1. An improved liquid collector peripheral sealing structure, characterized in that: include: A guide plate (1), a guide plate fixing bracket (2), a clamping plate (3), a supporting plate (4), a supporting angle bracket (5) and a concave liquid collecting tray (6); The guide plate (1) is connected to the desulfurization tower wall plate, and a plurality of guide plate fixing brackets (2) are welded to the desulfurization tower wall plate to support the guide plate (1); the clamping plate (3) is welded to the support plate (4) to form a whole, and is used to clamp the guide plate fixing bracket (2); the top of the concave liquid collecting tray (6) is fitted with the bottom of the support plate (4), and a gap of 10 to 20 mm is left between the concave liquid collecting tray (6) and the desulfurization tower wall plate, and the supporting angle bracket (5) is used to support the concave liquid collecting tray (6).
2. The improved liquid collector peripheral sealing structure according to claim 1, characterized in that: Also includes: Alloy bolts (7); two clamping plates (3) clamp the guide plate fixing bracket (2) and are fastened together by the alloy bolts (7).
3. The improved liquid collector peripheral sealing structure according to claim 2, characterized in that: The deflector fixing bracket (2) and the clamping plate (3) are provided with elliptical holes.
4. The improved liquid collector peripheral sealing structure according to claim 1, characterized in that: The guide plate (1) is connected to the desulfurization tower wall plate by scaling or welding.