Fireproof structure of chimney glass fiber reinforced plastic inner cylinder based on fireproof valve

Abstract

The chimney glass fiber reinforced plastic inner cylinder fireproof structure comprises a main valve body and a fireproof assembly, the rear end of the exterior of the main valve body is connected with a chimney pipeline, the front end of the exterior of the main valve body is connected with an absorption tower body, and the fireproof assembly is arranged in the main valve body. And the fireproof assembly comprises an execution part, a fireproof valve plate, sealing butt joint blocks, limiting sliding blocks, limiting sliding grooves, limiting blocks and sealing butt joint grooves, the fireproof valve plate is connected to the front end of the execution part, the sealing butt joint blocks are additionally arranged at the two ends of the exterior of the fireproof valve plate, and the limiting sliding blocks are additionally arranged at the two ends of the exterior of the fireproof valve plate. According to the chimney glass fiber reinforced plastic inner cylinder fireproof structure based on the fireproof valve, mutual communication between the absorption tower and the chimney can be rapidly cut off through the fireproof assembly, hot airflow is prevented from rapidly rising upwards in a long and narrow channel, fire spreading is prevented, meanwhile, rapid diffusion of high-temperature dense smoke is avoided, and the overall practicability and the use efficiency of the fireproof structure are improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire protection of a chimney glass fiber reinforced plastic inner tube, in particular to a fire protection structure of a chimney glass fiber reinforced plastic inner tube based on a fire damper. Background Art

[0002] In the existing industrial production field, chimneys are usually widely used as key channels for flue gas emission. For example, FRP materials are widely used in environmental protection equipment such as desulfurization and denitrification due to their high corrosion resistance and good mechanical properties. However, FRP materials themselves are easily affected by high-temperature flames and cause combustion risks. Once a fire occurs inside a FRP chimney, affected by the "chimney effect", the hot air flow will quickly rise upward in the narrow channel, causing the fire to spread faster and the high-temperature smoke to spread rapidly, making firefighting extremely difficult. In addition, in order to realize the flue gas desulfurization process in the chimney structure, an absorption tower is usually configured inside the chimney or in the connecting pipeline. In order to meet certain reaction conditions, the absorption tower often needs to be operated under conditions containing open flames inside. Since the absorption tower and the chimney are interconnected, a strong natural draft channel is easily formed. Once the open flame deviates from the design condition or an abnormal situation occurs inside the absorption tower, the fire may quickly spread to the internal and external structures of the chimney pipe, thereby causing a serious fire. Therefore, improvements need to be made to the above problems to meet actual usage needs. Summary of the invention

[0003] The object of the present invention is to provide a chimney fiberglass inner tube fire protection structure based on a fire damper to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chimney fiberglass inner tube fire protection structure based on fire dampers, comprising a main valve body and a fire protection component, the outer rear end of the main valve body is connected to the chimney pipe, and the outer front end of the main valve body is connected to the absorption tower body, a fire protection component is arranged inside the main valve body, and the fire protection component comprises an actuator, a fire valve plate, a sealing docking block, a limit slider, a limit slide groove, a limit block and a sealing docking groove, the front end of the actuator is connected to the fire valve plate, and sealing docking blocks are added at both ends of the outer side of the fire valve plate, and limit sliders are added at both ends of the outer side of the fire valve plate, limit slide grooves are opened at both ends of the inner side of the main valve body, and limit blocks are added on both sides of the inner side of the main valve body, and a sealing docking groove is opened at the middle end of the limit block, and installation components are arranged at both ends of the outer side of the main valve body.

[0005] Preferably, the outer dimension of the sealing docking block is matched with the inner dimension of the sealing docking groove, and the sealing docking block is connected to the limit block through the sealing docking groove.

[0006] Preferably, the number of the limit sliding blocks is four, and two of the limit sliding blocks form a group, and each group of the limit sliding blocks is symmetrically arranged at the two ends of the outside of the fire damper plate with respect to the side center axis of the fire damper plate.

[0007] Preferably, the outer dimensions of the limit slider are matched with the inner dimensions of the limit slide groove, and the limit slider is slidably connected to the main valve body through the limit slide groove.

[0008] Preferably, the mounting assembly comprises a first mounting plate, a mounting groove and a mounting block, the first mounting plate is provided with mounting grooves at both ends thereof, and the mounting grooves are connected to the mounting blocks.

[0009] Preferably, the mounting assembly also includes a second mounting plate, threaded mounting holes and mounting bolts, and the second mounting plate is arranged outside the mounting block, and threaded mounting holes are opened at four corners inside the second mounting plate, and mounting bolts are connected inside the threaded mounting holes.

[0010] Preferably, the inner dimensions of the mounting groove are matched to the outer dimensions of the mounting block, and the mounting block is embeddedly connected to the first mounting plate through the mounting groove.

[0011] Preferably, the inner dimension of the threaded mounting hole is matched with the outer dimension of the mounting bolt, and the mounting bolt is rotatably connected to the second mounting plate through the threaded mounting hole.

[0012] Compared with the prior art, the invention has the following beneficial effects: the chimney glass fiber reinforced plastic inner tube fireproof structure based on the fire damper can quickly cut off the mutual connection between the absorption tower and the chimney through the fireproof component, thereby preventing the hot air flow from rising rapidly inside the narrow and long passage, preventing the fire from spreading while preventing the rapid spread of high-temperature dense smoke, and improving the overall practicality and use efficiency of the fireproof structure; The fireproof structure of the glass fiber reinforced plastic inner tube of the chimney based on the fire damper is provided with a fireproof component. The opening and closing of the fire damper plate is regulated by the actuator, and the additional limit slider cooperates with the limit slide groove to improve the stability of the fire damper plate during the opening and closing process. At the same time, the setting of the sealing docking block further improves the sealing of the fire damper plate after closing, thereby preventing the rapid spread of fire and improving the fireproof efficiency of the glass fiber reinforced plastic inner tube of the chimney. The fireproof structure of the chimney fiberglass inner tube based on the fire damper is provided with an installation component, which can quickly and stably connect the first installation plate with the second installation plate through the installation groove and the installation block, avoid manual lifting installation, reduce the labor intensity of the staff, and improve the convenience of the installation process of the main valve body, the chimney pipe and the absorption tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device of the present invention; Figure 2It is a schematic diagram of the three-dimensional cross-sectional structure of the fireproof assembly of the present invention; Figure 3 It is a schematic diagram of the three-dimensional unfolded structure of the installation component of the present invention.

[0014] In the figure: 1. main valve body; 2. chimney pipe; 3. absorption tower body; 4. fire protection component; 401. actuator; 402. fire protection valve plate; 403. sealing docking block; 404. limit slider; 405. limit slide groove; 406. limit block; 407. sealing docking groove; 5. installation component; 501. first installation plate; 502. installation groove; 503. installation block; 504. second installation plate; 505. threaded installation hole; 506. installation bolt. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figures 1 to 3 The present invention provides a technical solution: a chimney glass fiber reinforced plastic inner tube fireproof structure based on a fire damper, comprising a main valve body 1 and a fireproof component 4, wherein the rear end of the main valve body 1 is connected to a chimney pipe 2, and the front end of the main valve body 1 is connected to an absorption tower body 3, and the fireproof component 4 is arranged inside the main valve body 1, and the fireproof component 4 comprises an actuator 401, a fire damper plate 402, a sealing docking block 403, a limiting slide block 404, a limiting slide groove 405, a limiting block 406 and a sealing docking groove 407, the front end of the actuator 401 is connected to a fire damper plate 402, and sealing docking blocks 403 are added at both ends of the outer side of the fire damper plate 402, and limiting slide blocks 404 are added at both ends of the outer side of the fire damper plate 402, and the two ends of the inner side of the main valve body 1 are provided with a sealing docking block 403. A limit slide groove 405 is opened, and limit blocks 406 are additionally provided on both sides of the interior of the main valve body 1, and a sealing docking groove 407 is opened at the middle end of the limit block 406, the outer size of the sealing docking block 403 is matched with the inner size of the sealing docking groove 407, and the sealing docking block 403 is connected to the limit block 406 through the sealing docking groove 407, the number of limit sliders 404 is set to four, and two limit sliders 404 are a group, and each group of limit sliders 404 is symmetrically arranged at the two ends of the exterior of the fire damper plate 402 with the side center axis of the fire damper plate 402, the outer size of the limit slider 404 is matched with the inner size of the limit slide groove 405, and the limit slider 404 is slidably connected to the main valve body 1 through the limit slide groove 405.

[0017] When using the chimney glass fiber reinforced plastic inner tube fire protection structure based on the fire damper, if Figure 1 and Figure 2 As shown, firstly, the whole device is assembled and connected, and the actuator 401 is fixedly installed in the middle of the upper end of the main valve body 1 by tightening bolts. The actuator 401 regulates the rotation of the fire damper plate 402 through the metal fusible sheet and the clutch mechanism, and the sealing docking block 403 is fixedly installed on the two opposite sides of the outside of the fire damper plate 402. At the same time, the limit block 406 is fixedly installed on the two opposite sides of the outside of the fire damper plate 402. The inner size of the sealing docking groove 407 opened in the limit block 406 is the same as that of the outer side of the sealing docking block 403. The sizes are adapted to each other, so that the sealing performance of the fire damper plate 402 after closing is improved by cooperating with the sealing docking groove 407 and the sealing docking block 403, and the external dimensions of the limit sliding blocks 404 added at both ends of the outside of the fire damper plate 402 are adapted to the internal dimensions of the limit sliding grooves 405 opened at both ends of the inside of the main valve body 1, so that the stability of the fire damper plate 402 during rotation is improved by cooperating with the limit sliding grooves 405 and the limit sliding blocks 404, thereby improving the overall use efficiency of the fire damper plate 402, quickly isolating the fire, and improving the fire resistance of the chimney.

[0018] At the same time, mounting components 5 are provided at both ends of the outside of the main valve body 1, and the mounting components 5 include a first mounting plate 501, a mounting groove 502 and a mounting block 503. The first mounting plate 501 has mounting grooves 502 at both ends, and the mounting groove 502 is connected with the mounting block 503. The mounting component 5 also includes a second mounting plate 504, a threaded mounting hole 505 and a mounting bolt 506. The second mounting plate 504 is provided outside the mounting block 503, and the second mounting plate 504 is provided with threaded mounting holes 505 at four corners inside the second mounting plate 504, and the threaded mounting holes 505 are connected with the mounting bolts 506. The internal dimensions of the mounting groove 502 are matched with the external dimensions of the mounting block 503, and the mounting block 503 is embeddedly connected with the first mounting plate 501 through the mounting groove 502, the internal dimensions of the threaded mounting hole 505 are matched with the external dimensions of the mounting bolt 506, and the mounting bolt 506 is rotatably connected with the second mounting plate 504 through the threaded mounting hole 505.

[0019] After the device is assembled, the internal dimensions of the mounting grooves 502 opened at both ends of the first mounting plate 501 are adapted to the external dimensions of the mounting blocks 503 added at both ends of the second mounting plate 504, so that the first mounting plate 501 and the second mounting plate 504 can be quickly docked through the mounting grooves 502 and the mounting blocks 503, so that the main valve body 1 and the absorption tower body 3 can be quickly docked and installed, and the mounting bolts 506 are rotated and installed into the second mounting plate 504 through the threaded mounting holes 505, and the second mounting plate 504 and the first mounting plate 501 are quickly fixed by the mounting bolts 506, so as to quickly complete the installation of the main valve body 1 and the absorption tower body 3. Similarly, the main valve body 1 is quickly fixed to the chimney pipe 2, thereby improving the overall installation convenience of the main valve body 1. This is the working principle of the chimney fiberglass inner tube fire protection structure based on the fire damper.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chimney fiberglass inner tube fireproof structure based on a fire damper, comprising a main valve body (1) and a fireproof component (4), characterized in that: The rear end of the main valve body (1) is connected to a chimney pipe (2), and the front end of the main valve body (1) is connected to an absorption tower body (3). A fire protection component (4) is arranged inside the main valve body (1), and the fire protection component (4) comprises an actuator (401), a fire protection valve plate (402), a sealing docking block (403), a limit slider (404), a limit slide groove (405), a limit block (406) and a sealing docking groove (407). The front end of the actuator (401) is connected to A fireproof damper plate (402) is provided, and sealing docking blocks (403) are added at both ends of the exterior of the fireproof damper plate (402), and limiting sliders (404) are added at both ends of the exterior of the fireproof damper plate (402), limiting slide grooves (405) are opened at both ends of the interior of the main valve body (1), and limiting blocks (406) are added at both sides of the interior of the main valve body (1), and a sealing docking groove (407) is opened at the middle end of the interior of the limiting block (406), and mounting components (5) are provided at both ends of the exterior of the main valve body (1).

2. According to claim 1, a chimney fiberglass inner tube fireproof structure based on fire damper is characterized in that: The external dimensions of the sealing docking block (403) are matched to the internal dimensions of the sealing docking groove (407), and the sealing docking block (403) is connected to the limiting block (406) via the sealing docking groove (407).

3. The chimney fiberglass inner tube fireproof structure based on fire damper according to claim 1 is characterized in that: The number of the limiting sliders (404) is four, and two of the limiting sliders (404) form a group, and each group of limiting sliders (404) is symmetrically arranged at two ends of the outside of the fire damper plate (402) along the side center axis of the fire damper plate (402).

4. The chimney fiberglass inner tube fireproof structure based on fire damper according to claim 1 is characterized in that: The outer dimensions of the limiting slide block (404) are matched to the inner dimensions of the limiting slide groove (405), and the limiting slide block (404) is slidably connected to the main valve body (1) via the limiting slide groove (405).

5. The chimney fiberglass inner tube fireproof structure based on fire damper according to claim 1 is characterized in that: The mounting assembly (5) comprises a first mounting plate (501), a mounting groove (502) and a mounting block (503); the first mounting plate (501) has mounting grooves (502) at both ends thereof, and the mounting grooves (502) are connected to the mounting blocks (503).

6. The chimney glass fiber reinforced plastic inner tube fireproof structure based on fire damper according to claim 5 is characterized in that: The mounting assembly (5) further comprises a second mounting plate (504), a threaded mounting hole (505) and a mounting bolt (506), and the second mounting plate (504) is arranged outside the mounting block (503), and threaded mounting holes (505) are provided at four corners inside the second mounting plate (504), and mounting bolts (506) are connected inside the threaded mounting holes (505).

7. The chimney glass fiber reinforced plastic inner tube fireproof structure based on fire damper according to claim 6 is characterized in that: The internal dimensions of the mounting groove (502) are matched to the external dimensions of the mounting block (503), and the mounting block (503) is embeddedly connected to the first mounting plate (501) via the mounting groove (502).

8. The chimney fiberglass inner tube fireproof structure based on fire damper according to claim 6 is characterized in that: The inner dimensions of the threaded mounting hole (505) are matched to the outer dimensions of the mounting bolt (506), and the mounting bolt (506) is rotatably connected to the second mounting plate (504) through the threaded mounting hole (505).

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