Boiler bottom flexible connection non-water seal structure

Abstract

The utility model relates to a boiler water seal groove overhauling and maintaining technical field, and specifically is a boiler furnace bottom flexible connection non-water seal structure, including boiler furnace bottom plate and water tank plug -in board, two fixed plates are fixedly connected to the lower extreme of boiler furnace bottom plate, the lateral wall of fixed plate all is connected with upper deflector and slag baffle through the connecting mechanism, the lateral wall of upper deflector and water tank plug -in board all is connected with the heat preservation layer through flange mechanism, the lateral wall of heat preservation layer is connected with the skin through bolt, the utility model connects the mechanism, adapts boiler thermal expansion and cold shrink, avoids high temperature and causes slag baffle, upper deflector thermal displacement. Slag baffle is through multilayer composite design, and the corrosion resistance is greatly increased, can resist strong acid and alkali, and the life is over five years.

Description

Technical Field

[0001] This utility model relates to the field of boiler water seal trough repair and maintenance technology, specifically a boiler bottom soft connection non-water seal structure. Background Technology

[0002] The boiler water seal tank is a key sealing and safety device in the boiler system. Based on the water seal principle, it blocks abnormal gas flow, achieves sealing and leak prevention, and also has exhaust and drainage functions to ensure the safe operation of the boiler.

[0003] Currently, water seal structures have significant limitations in boiler operation. High temperatures cause the water seal material to expand and contract, leading to poor sealing and easy leakage; vibration causes connecting parts to loosen, weakening the sealing effect; corrosive media erode the inner wall, causing wear, perforation, and even weld cracking, shortening equipment life and increasing the risk of failure. These problems necessitate frequent maintenance, resulting in high costs.

[0004] Therefore, this utility model provides a non-water-sealed flexible connection structure for boiler furnace bottom. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a boiler bottom soft connection non-water seal structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a boiler bottom soft connection non-water seal structure, including a boiler bottom plate and a water tank insert plate. Two fixing plates are fixedly connected to the lower end of the boiler bottom plate. The side walls of the fixing plates are connected to an upper guide plate and a slag baffle plate through a connecting mechanism. The side walls of the upper guide plate and the water tank insert plate are connected to an insulation layer through a flange mechanism. The side walls of the insulation layer are connected to a skin by bolts. A lower guide plate is provided at the upper end of the water tank insert plate. An ash baffle mechanism for ash baffle is installed on the side wall of the upper guide plate.

[0007] Preferably, the connecting mechanism includes a fixing bolt, which is threaded onto a fixing plate. The sidewalls of the slag baffle and the upper guide plate are provided with rounded rectangular screw holes, which correspond to the fixing bolts.

[0008] Preferably, the flange mechanism includes an upper flange and a lower flange. The upper flange is fixedly installed on the side wall of the insulation layer and the upper guide plate, and the lower flange is fixedly installed on the side wall of the insulation layer and the water tank insert plate. The upper flange and the lower flange are connected by bolts.

[0009] Preferably, the dust-blocking mechanism includes a dust-blocking cover plate, which is at a 45° angle to the side wall of the upper guide plate.

[0010] Preferably, the rounded rectangular screw hole is designed to be rounded rectangular, and the rounded rectangular screw hole is located in the middle of the slag baffle plate and the upper guide plate.

[0011] Preferably, a reinforcing plate is fixedly connected to the side wall of the upper guide plate.

[0012] Preferably, the upper and lower flanges are embedded with graphite gaskets.

[0013] The advantages of this utility model are:

[0014] 1. This utility model, through the setting of the connecting mechanism, can effectively adapt to the deformation of the boiler due to thermal expansion and contraction during use by optimizing the installation structure, and effectively avoid the thermal displacement of the slag baffle and the upper guide plate caused by high temperature during use. By adopting a multi-layer composite design for the slag baffle, its corrosion resistance can be significantly improved, and it can resist corrosive media such as strong acids and strong alkalis, extending its service life to more than five years.

[0015] 2. This utility model uses the upper and lower flanges to fix the insulation layer, which reduces the impact of external temperature on the processing area and facilitates disassembly and maintenance of the processing area, further enhancing the separation and maintenance effect of the boiler bottom soft connection non-water seal structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the slag baffle of this utility model;

[0019] Figure 3 This is a partial structural diagram of the boiler bottom plate and upper guide plate of this utility model;

[0020] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0021] In the diagram: 1. Boiler bottom plate; 2. Upper guide plate; 3. Slag baffle plate; 4. Fixing plate; 5. Upper flange; 6. Skin; 7. Insulation layer; 8. Lower flange; 9. Lower guide plate; 10. Water tank insert plate; 11. Fixing bolts; 12. Reinforcing plate; 13. Rounded rectangular bolt holes; 14. Ash baffle cover plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a non-water-sealed flexible connection structure for the boiler furnace bottom. (Refer to...) Figure 1 and Figure 4 A boiler bottom flexible connection non-water seal structure includes a boiler bottom plate 1 and a water tank insert plate 10. Two fixing plates 4 are fixedly connected to the lower end of the boiler bottom plate 1. The side walls of the fixing plates 4 are connected to an upper guide plate 2 and a slag baffle plate 3 through a connecting mechanism. It should be noted that the slag baffle plate 3 adopts a multi-layer composite structure design. The inner lining layer uses a first type of stainless steel wire mesh, a second type of double-layer Teflon cloth 0.8mm, a third type of double-layer high temperature and corrosion resistant alloy film, a fourth type of double-layer fiberglass cloth 2.0mm, a fifth type of double-layer polytetrafluoroethylene film 0.6mm, and a sixth type of ceramic fiber cloth 3.5mm for insulation. The edge covering uses a corrosion-resistant double-sided fiberglass cloth material 2.5mm, which significantly improves the corrosion resistance and can resist strong acid, strong alkali and other corrosive media. The upper guide plate 2 and the side wall of the water tank insert plate 10 are both connected to the insulation layer 7 by the flange mechanism. The side wall of the insulation layer 7 is connected to the skin 6 by bolts. The upper end of the water tank insert plate 10 is provided with a lower guide plate 9. The side wall of the upper guide plate 2 is equipped with a dust blocking mechanism for dust blocking.

[0025] Reference Figure 2 The connecting mechanism includes a fixing bolt 11, which is threaded onto the fixing plate 4. The side walls of the slag baffle plate 3 and the upper guide plate 2 are provided with rounded rectangular screw holes 13, which correspond to the fixing bolt 11. Through the above arrangement, the rounded rectangular screw holes 13 and the fixing bolt 11 can fix the fixing plate 4 and the slag baffle plate 3, avoiding thermal displacement caused by thermal expansion and contraction.

[0026] Reference Figure 1 and Figure 3The flange mechanism includes an upper flange 5 and a lower flange 8. The upper flange 5 is fixedly installed on the side wall of the insulation layer 7 and the upper guide plate 2, and the lower flange 8 is fixedly installed on the side wall of the insulation layer 7 and the water tank insert plate 10. The upper flange 5 and the lower flange 8 are connected by bolts. With the above arrangement, the upper flange 5 and the lower flange 8 can be conveniently installed on the insulation layer 7 during operation. The insulation layer 7 can prevent the external temperature from affecting the gas treatment, and at the same time facilitate the disassembly and maintenance of the treatment area, further enhancing the separation and maintenance effect of the boiler bottom soft connection non-water seal structure.

[0027] Reference Figure 1 and Figure 3 The ash-blocking mechanism includes an ash-blocking cover plate 14, which is at a 45° angle to the side wall of the upper guide plate 2. With the above arrangement, during operation, the ash-blocking cover plate 14 can block the ash from passing through the slag-blocking plate 3 and the upper guide plate 2. The ash-blocking cover plate 14 can block and filter the gas passing through the slag-blocking plate 3 and the upper guide plate 2, further enhancing the ash-blocking and filtering effect of the boiler bottom soft connection non-water seal structure.

[0028] Reference Figure 4 The rounded rectangular screw hole 13 is designed with rounded rectangles and is located in the middle of the slag baffle plate 3 and the upper guide plate 2. With the above arrangement, the rounded rectangular screw hole 13 and the fixing bolt 11 can stabilize the installation between the fixing plate 4 and the slag baffle plate 3. At the same time, the rectangular design of the rounded rectangular screw hole 13 is to adapt to the expansion and contraction of the boiler due to thermal expansion and contraction.

[0029] Reference Figure 3 The upper guide plate 2 is fixedly connected to a reinforcing plate 12 on its side wall. With the above arrangement, during operation, the reinforcing plate 12 can provide support and reinforcement between the upper flange 5 and the upper guide plate 2. The reinforcing plate 12 can provide support and reinforcement between the upper flange 5 and the upper guide plate 2, enhance the stability of use, and further enhance the support and reinforcement effect of the boiler bottom soft connection non-water seal structure.

[0030] Reference Figure 1 and Figure 3 The upper flange 5 and the lower flange 8 are embedded with graphite gaskets. Through the above-mentioned arrangement, the graphite gaskets effectively reduce the leakage rate and improve the sealing performance. The setting of graphite gaskets can reduce leakage and increase sealing performance, further enhancing the anti-leakage sealing effect of the boiler bottom soft connection non-water seal structure.

[0031] Working principle: The optimized installation structure through the connecting mechanism can adapt to the thermal expansion and contraction of the boiler, avoiding thermal displacement of the baffle plate 3 and the upper guide plate 2 during use. The baffle plate 3 and the upper guide plate 2 can guide and block the discharged gas. Because the baffle plate 3 adopts a multi-layer composite structure design, the inner lining uses a first type of stainless steel wire mesh, a second type of double-layer Teflon cloth 0.8mm, a third type of double-layer high temperature and corrosion resistant alloy film, a fourth type of double-layer fiberglass cloth 2.0mm, a fifth type of double-layer polytetrafluoroethylene film 0.6mm, and a sixth type of ceramic fiber cloth 3.5mm insulation cotton. The edge covering uses corrosion resistant double-sided fiberglass cloth material 2.5mm, which significantly improves the corrosion resistance and can resist strong acid, strong alkali and other corrosive media.

[0032] The dust-blocking mechanism can block and filter dust particles in the gas. The water tank plate 10 and the lower guide plate 9 can trap the gas inside the split component for treatment. The upper flange 5 and the lower flange 8 can facilitate the installation of the insulation layer 7. The rounded rectangular screw holes 13 and the fixing bolts 11 can be used to install and fix the fixing plate 4 and the slag-blocking plate 3 to avoid thermal displacement caused by thermal expansion and contraction. The reinforcing plate 12 can provide support and reinforcement between the upper flange 5 and the upper guide plate 2.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A boiler bottom flexible connection non-water seal structure, comprising a boiler bottom plate (1) and a water tank insert plate (10), characterized in that: The bottom of the boiler furnace bottom plate (1) is fixedly connected to two fixing plates (4), and the side walls of the fixing plates (4) are connected to an upper guide plate (2) and a slag baffle plate (3) through a connecting mechanism. The upper guide plate (2) and the side wall of the water tank insert plate (10) are both connected to the insulation layer (7) by the flange mechanism. The side wall of the insulation layer (7) is connected to the skin (6) by bolts. The upper end of the water tank insert plate (10) is provided with a lower guide plate (9). The side wall of the upper guide plate (2) is equipped with a dust-blocking mechanism for dust blocking.

2. The boiler bottom flexible connection non-water seal structure according to claim 1, characterized in that: The connecting mechanism includes a fixing bolt (11), which is threaded onto the fixing plate (4). The side walls of the slag baffle (3) and the upper guide plate (2) are provided with rounded rectangular screw holes (13), which correspond to the fixing bolt (11).

3. The boiler bottom flexible connection non-water seal structure according to claim 1, characterized in that: The flange mechanism includes an upper flange (5) and a lower flange (8). The upper flange (5) is fixedly installed on the side wall of the insulation layer (7) and the upper guide plate (2). The lower flange (8) is fixedly installed on the side wall of the insulation layer (7) and the water tank insert plate (10). The upper flange (5) and the lower flange (8) are connected by bolts.

4. The boiler bottom flexible connection non-water seal structure according to claim 1, characterized in that: The dust-blocking mechanism includes a dust-blocking cover plate (14), which is at a 45° angle to the side wall of the upper guide plate (2).

5. A boiler bottom flexible connection non-water seal structure according to claim 2, characterized in that: The rounded rectangular screw hole (13) is designed to be rounded rectangular, and the rounded rectangular screw hole (13) is located in the middle of the slag baffle plate (3) and the upper guide plate (2).

6. The boiler bottom flexible connection non-water seal structure according to claim 1, characterized in that: The upper guide plate (2) is fixedly connected to a reinforcing plate (12) on its side wall.

7. The boiler bottom flexible connection non-water seal structure according to claim 3, characterized in that: The upper flange (5) and lower flange (8) are fitted with graphite gaskets.

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