Combined glass fiber reinforced plastic desulfurizing tower

Abstract

A combined glass fiber reinforced plastic desulfurizing tower comprises multiple layers of tower sections which are combined and overlapped, each layer of tower section penetrates through the side wall and is provided with a mounting hole, the inner side of each mounting hole is provided with a manhole door plate, and the inner edge surface of each mounting hole is fixedly connected with a mounting cylinder; the outer end face of the manhole door plate is hinged to the inner wall of the mounting cylinder through a hinge piece, and the manhole door plate can rotate towards the interior of the tower section around a hinge point. The hinged piece is hinged to the manhole door plate, so that the manhole door plate can be opened towards the interior of the desulfurizing tower, a traditional outward opening mode is changed, on one hand, the force of workers for opening the door plate can be saved, the external space of the desulfurizing tower is saved, the working space of the workers during high-altitude work is enlarged, and operation of the workers is facilitated; and on the other hand, pollutants contaminated on the door plate cannot be exposed out of air, pollution to surrounding air is reduced, and influences on ground workers and ground cleanliness are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to a combined glass fiber reinforced plastic desulfurization tower. Background Art

[0002] The desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas. It can achieve the effects of dust removal and desulfurization at the same time by configuring different dust removal agents. With the development of FRP technology, desulfurization towers have gradually been transformed into FRP. For some large desulfurization towers such as power plants, most of them are upright and tall structures, which need to be combined and overlapped with multiple tower sections. In order to facilitate the installation, maintenance and installation inspection of the desulfurization tower, it is necessary to set a manhole at each tower section. The staff observes or enters and exits the desulfurization tower through the manhole to maintain and inspect its interior. The traditional desulfurization tower manhole usually uses flanges or other structures to install the door panel. The door panel is opened outward from the outside of the desulfurization tower. On the one hand, it takes a lot of force in the opening process and requires a certain opening space. When working at high altitude, the working space is small, which is not conducive to the operation of the staff. On the other hand, the inside of the manhole door panel will be contaminated with more desulfurization reactants. After opening, it will be outside the environment for a long time, which will cause air pollution, and the contaminated liquid pollutants will flow to the ground, which will affect the staff near the desulfurization tower and the cleanliness of the ground. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a combined glass fiber reinforced plastic desulfurization tower.

[0004] The technical solution of this utility model is as follows:

[0005] A combined glass fiber reinforced plastic desulfurization tower, the desulfurization tower comprises multiple layers of combined and overlapped tower sections, each layer of tower sections has a mounting hole through the side wall, and a manhole door plate is arranged inside the mounting hole, and a mounting cylinder is fixedly connected to the inner edge surface of the mounting hole;

[0006] The outer end surface of the manhole door plate is hinged to the inner wall of the installation tube through a hinge, and the manhole door plate can rotate around the hinge point toward the inside of the tower section;

[0007] The outer end surface of the manhole door panel is equipped with a screw rod extending outward, and the inner wall of the mounting tube is detachably provided with a support frame, and the screw rod penetrates the support frame, and the two are fixed on the outer side of the support frame by a threaded sleeve.

[0008] In order to improve the sealing performance of the manhole door plate, a convex ring is provided on the inner edge surface of one end of the installation tube close to the tower section, and the manhole door plate can cover the convex ring.

[0009] The support frame is installed in such a way that two groups of U-shaped channel steels are relatively installed on the inner wall of the installation tube, and the openings are facing the side away from the flange, and the support frame is movably arranged in the openings of the two groups of U-shaped channel steels.

[0010] In order to improve the fixing strength of the support frame and then strengthen the fixing strength of the manhole door panel, the length of the support frame is greater than the inner diameter of the convex ring.

[0011] In order to improve the stability of the manhole door panel when it is opened, two groups of hinged parts are provided and are respectively located on both sides of the support frame.

[0012] The specific structure of the hinged parts is that each set of hinged parts includes a first bottom plate fixedly connected to the inner wall of the installation tube and a second bottom plate fixedly connected to the outer end surface of the manhole door plate;

[0013] A connecting frame is disposed between the first bottom plate and the second bottom plate, and two ends of the connecting frame are rotatably connected to the first bottom plate and the second bottom plate respectively.

[0014] In order to ensure smooth opening of the manhole door panel, the first bottom plate and the second bottom plate are located in the same horizontal plane.

[0015] In order to facilitate the rotation of the threaded sleeve, a hand wheel is installed on the outer edge surface of the threaded sleeve.

[0016] In order to improve the fixing strength of the manhole door panel when it is closed, a plurality of limiting plates are circumferentially installed on the outer end surface of the manhole door panel, and the limiting plates can abut against the inner ring of the convex ring.

[0017] In order to facilitate the extrusion of the limiting plate and the convex ring, the limiting plate includes a front end facing the convex ring and provided with a slope;

[0018] A squeezing cushion is installed on the side of the limiting plate facing the flange, and the squeezing cushion extends to the slope portion, and the maximum distance from the center of the manhole door plate to the squeezing cushion is greater than the inner diameter of the convex ring.

[0019] The beneficial effects of the utility model are as follows: the utility model is a combined glass fiber reinforced plastic desulfurization tower. Firstly, by opening a mounting hole in each tower section and arranging a manhole door panel on the inner side, a manhole of each tower section can be formed, which is convenient for the staff to inspect and maintain the interior of each tower section; secondly, by hinged connection between the hinge and the manhole door panel, the manhole door panel can be opened toward the inside of the desulfurization tower, which changes the traditional outward opening method. On the one hand, it can save the staff's effort to open the door panel and save the external space of the desulfurization tower, expand the working space of the staff during high-speed operation, and facilitate their operation; on the other hand, the pollutants contaminated on the door panel will not be exposed to the air, reducing the pollution to the surrounding air and avoiding the impact on the ground staff and the cleanliness of the ground; finally, through the cooperation of components such as screws, support frames and threaded sleeves, the manhole door panel can be tightly fixed to the mounting tube, and the operation method is simple and quick, which facilitates the opening and fixing of the manhole door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0021] In the attached picture:

[0022] Figure 1 This is the front view of the desulfurization tower;

[0023] Figure 2 This is the enlarged view of point A;

[0024] Figure 3 This is the side view of the desulfurization tower;

[0025] Figure 4 It is a side view cross-section diagram of the manhole location;

[0026] Figure 5 This is an enlarged view of point B;

[0027] Figure 6 This is the enlarged view of point C;

[0028] The components represented by the reference numerals in the figure are:

[0029] 1. Tower section; 2. Mounting hole; 3. Manhole door panel; 4. Mounting tube; 5. Hinge; 51. First base plate; 52. Second base plate; 53. Connecting frame; 6. Screw; 7. Support frame; 8. Threaded sleeve; 9. Convex ring; 10. U-shaped channel steel; 11. Handwheel; 12. Limiting plate; 13. Slope; 14. Extrusion cushion; 15. Handle; 16. Sealing ring. DETAILED DESCRIPTION

[0030] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0031] Example

[0032] As mentioned in the background technology, the combined FRP desulfurization tower is composed of multiple layers of tower sections 1 overlapped from top to bottom, and a manhole is provided to facilitate the inspection and maintenance of the inside of the desulfurization tower. However, the existing manhole door panels 3 are all opened toward the outside of the desulfurization tower. After opening, the inner wall of the manhole door panel 3 will be exposed to the air. Since the inner wall of the door panel is in contact with the desulfurization reactants for a long time, the surface will be contaminated with pollutants, and the door panel opened outward will expose the pollutants to the air, affecting the surrounding environment, and the door panel is heavy, which is more laborious to open, and occupies external space, compressing the operating space of the staff. Therefore, the inventor uses parts in the factory to design a new manhole door panel 3 fixing and opening method in daily production, which is explained in detail below with reference to the drawings.

[0033] This embodiment provides a combined glass fiber reinforced plastic desulfurization tower. Figure 1-Figure 4 The desulfurization tower includes multiple layers of overlapped tower sections 1. The installation and fixing method of each layer of tower section 1 can adopt the existing technology. Each layer of tower section 1 is provided with a mounting hole 2 through the side wall, and in order to facilitate the staff to observe the inside of each layer of tower section 1 in all directions, the position of the mounting hole 2 should be close to the upper edge of each layer of tower section 1. A manhole door panel 3 is arranged inside the mounting hole 2. The shape of the manhole door panel 3 is set to be circular, and the diameter is larger than the diameter of the mounting hole 2, which can cover the entire mounting hole 2. The fixing and opening methods of the manhole door panel 3 are described as follows.

[0034] In this embodiment, combined with Figure 2 The inner edge surface of the mounting hole 2 is fixedly connected with a mounting tube 4, one end of the mounting tube 4 slightly extends to the inside of the inner wall of the tower section 1, and the other end extends to the outside of the outer wall of the tower section 1, and when the manhole door panel 3 is in a closed state, it is fitted with the mounting tube 4, and in order to improve the sealing performance between the two, a sealing ring 16 is arranged between the edge of the manhole door panel 3 and the mounting tube 4.

[0035] Based on the above structure, one of the main design points of this scheme is to combine Figure 4 and Figure 5The manhole door panel is mainly fixed by the following components: a screw rod 6 extending outward is installed on the outer end surface of the manhole door panel 3, and a mounting seat is provided at the center position of the outer end surface of the manhole door panel 3 for the convenience of the screw rod 6, and the screw rod 6 is installed with the mounting seat, and a support frame 7 is detachably provided on the inner wall of the mounting tube 4, and the screw rod 6 passes through the support frame 7, and the two are fixed on the outer side of the support frame 7 by a threaded sleeve 8, and in order to facilitate the rotation of the threaded sleeve 8, a hand wheel 11 is installed on the outer edge surface of the threaded sleeve 8, and the staff can mobilize the threaded sleeve 8 to rotate by holding the hand wheel 11 with both hands, and under the action of the mutual meshing of the threads, the support frame 7 can be fixed to the inner wall of the mounting tube 4, and the manhole door panel 3 is tightly fitted with the inner end surface of the mounting tube 4 by the screw rod 6.

[0036] Among them, two groups of U-shaped channel steels 10 are relatively installed on the inner wall of the installation cylinder 4, and the opening is facing the side away from the flange, that is, the opening is facing outward, and the support frame 7 is movably arranged in the openings of the two groups of U-shaped channel steels 10, and the support frame 7 can be placed in the openings of the two groups of U-shaped channel steels 10. The upper and lower plates of the U-shaped channel steels 10 can limit the support frame 7, and a cylinder is arranged in the middle of the support frame 7 for the screw rod 6 to pass through, and is slidably arranged with the screw rod 6. When fixing the manhole door panel 3, the support frame 7 is placed between the two groups of U-shaped channel steels 10, and the screw rod 6 passes through the support frame 7, and the threaded sleeve 8 is installed on the screw rod 6 and tightened by the hand wheel 11.

[0037] Moreover, a convex ring 9 is provided on the inner edge surface of one end of the mounting tube 4 close to the tower section 1, and the manhole door plate 3 can cover the convex ring 9. The convex ring 9 can expand the contact area between the mounting tube 4 and the manhole door plate 3 and improve the sealing performance. The length of the support frame 7 is greater than the inner diameter of the convex ring 9, and the U-shaped channel steel 10 extends beyond the inner edge of the convex ring 9, so that when the threaded sleeve 8 is tightened, the convex ring 9 can bear the extrusion force of the support frame 7 on the U-shaped channel steel 10 to prevent the U-shaped channel steel 10 from deformation.

[0038] Based on the above structure, combined with Figure 6In order to improve the strength of the fixation between the manhole door panel 3 and the mounting tube 4 and reduce the shaking caused by airflow or other impacts, a plurality of limit plates 12 are circumferentially installed on the outer end surface of the manhole door panel 3, and the limit plates 12 can abut against the inner circle of the convex ring 9. Specifically, the limit plate 12 includes a front end facing the convex ring 9 and a slope 13 is arranged, and the slope 13 is inclined downward from the direction away from the manhole door panel 3. The side of the limit plate 12 facing the flange is installed with an extrusion cushion 14, and the extrusion cushion 14 extends to the slope 13 part. The maximum distance from the center of the manhole door panel 3 to the extrusion cushion 14 is The distance between the manhole door panel 3 and the squeezing cushion 14 is greater than the inner diameter of the convex ring 9, that is, the squeezing cushion 14 at the horizontal position of the limiting plate 12 exceeds the inner circle of the convex ring 9 in the vertical direction, and the limiting plate 12 is inside the inner circle of the convex ring 9 in the vertical direction. In this way, when closing the manhole door panel 3, the inclined part of the squeezing cushion 14 first contacts the edge of the convex ring 9, and then the manhole door panel 3 continues to be closed to squeeze the squeezing cushion 14 until the door panel is completely closed. Multiple limiting plates 12 abut against the inner circle of the convex ring 9 through the squeezing cushions 14, which increases the friction between the manhole door panel 3 and the inner circle of the convex ring 9, and can effectively reduce the shaking of the manhole door panel 3 when it is impacted.

[0039] As another major design point of this solution, which is also the most different from the prior art, the outer end surface of the manhole door panel 3 is hinged to the inner wall of the mounting tube 4 through a hinge 5, and the manhole door panel 3 can rotate toward the inside of the tower section 1 around the hinge point. By setting the hinge 5, the manhole door panel 3 can rotate toward the inside of the tower section 1, wherein the hinge 5 is provided with two groups, and is respectively located on both sides of the support frame 7. In this embodiment, the support frame 7 is horizontally arranged, and the two groups of hinges 5 are located on the upper and lower sides thereof, which can make the opening of the manhole door panel 3 more balanced and improve the temperature resistance. Specifically, Each set of hinged parts 5 includes a first base plate 51 fixedly connected to the inner wall of the mounting tube 4 and a second base plate 52 fixedly connected to the outer end surface of the manhole door panel 3, and the two are in the same horizontal plane, and a connecting frame 53 is arranged between the first base plate 51 and the second base plate 52, and the two ends of the connecting frame 53 are rotatably connected to the first base plate 51 and the second base plate 52 respectively, and the rotatable connection can be specifically made by means of studs or rotating shafts, and when the manhole door panel 3 is in a closed state, the dimensions of the first base plate 51 and the second base plate 52 should ensure that the support frame 7 is in a horizontal state.

[0040] In order to facilitate the application of force when opening the manhole door panel 3, a handle 15 is provided on the front end face of the manhole door panel 3. When it needs to be opened, the threaded sleeve 8 is unscrewed, and then the support frame 7 is taken out. The handle 15 is held and the manhole door panel 3 is pushed inward. The manhole door panel 3 rotates inward around the rotation position of the first base plate 51 until it is rotated to the maximum angle. During the rotation process, the manhole door panel 3 can also rotate around the rotation position of the second base plate 52, so that the manhole door panel 3 is opened to the maximum angle, thereby ensuring the activity space inside the tower section 1.

Claims

1. A combined glass fiber reinforced plastic desulfurization tower, comprising multiple layers of combined and overlapped tower sections (1), characterized in that: Each tower section (1) is provided with a mounting hole (2) penetrating the side wall, and a manhole door plate (3) is provided inside the mounting hole (2), and a mounting tube (4) is fixedly connected to the inner edge surface of the mounting hole (2); The outer end surface of the manhole door plate (3) is hinged to the inner wall of the installation tube (4) through a hinge (5), and the manhole door plate (3) can rotate around the hinge point toward the inside of the tower section (1); The outer end surface of the manhole door plate (3) is provided with a screw rod (6) extending outward, and the inner wall of the mounting tube (4) is detachably provided with a support frame (7), and the screw rod (6) passes through the support frame (7), and the two are fixed on the outer side of the support frame (7) by a threaded sleeve (8).

2. The combined FRP desulfurization tower according to claim 1 is characterized in that: A convex ring (9) is provided on the inner edge surface of one end of the installation tube (4) close to the tower section (1), and the manhole door plate (3) can cover the convex ring (9).

3. The combined FRP desulfurization tower according to claim 2 is characterized in that: Two groups of U-shaped channel steels (10) are relatively mounted on the inner wall of the mounting tube (4), and the openings are facing the side away from the flange, and the support frame (7) is movably arranged in the openings of the two groups of U-shaped channel steels (10).

4. The combined FRP desulfurization tower according to claim 3 is characterized in that: The length of the support frame (7) is greater than the inner diameter of the convex ring (9).

5. The combined FRP desulfurization tower according to claim 1 is characterized in that: The hinged parts (5) are provided in two groups and are respectively located on two sides of the support frame (7).

6. The combined FRP desulfurization tower according to claim 5 is characterized in that: Each set of hinged parts (5) comprises a first bottom plate (51) fixedly connected to the inner wall of the mounting tube (4) and a second bottom plate (52) fixedly connected to the outer end surface of the manhole door plate (3); A connecting frame (53) is provided between the first bottom plate (51) and the second bottom plate (52), and two ends of the connecting frame (53) are rotatably connected to the first bottom plate (51) and the second bottom plate (52) respectively.

7. The combined FRP desulfurization tower according to claim 6 is characterized in that: The first bottom plate (51) and the second bottom plate (52) are located in the same horizontal plane.

8. The combined FRP desulfurization tower according to claim 1 is characterized in that: A hand wheel (11) is installed on the outer edge surface of the threaded sleeve (8).

9. The combined FRP desulfurization tower according to claim 2, characterized in that: A plurality of limiting plates (12) are circumferentially mounted on the outer end surface of the manhole door plate (3), and the limiting plates (12) are capable of abutting against the inner ring of the convex ring (9).

10. The combined FRP desulfurization tower according to claim 9, characterized in that: The limiting plate (12) comprises a front end facing the convex ring (9) and provided with a slope (13); A squeezing cushion (14) is installed on the side of the limit plate (12) facing the flange, and the squeezing cushion (14) extends to the slope (13) portion, and the maximum distance from the center of the manhole door plate (3) to the squeezing cushion (14) is greater than the inner diameter of the convex ring (9).

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