Automatic fire extinguishing device for electric tar precipitator

Abstract

The utility model discloses an automatic fire extinguishing device of electric tar precipitator, including electric tar precipitator casing, one side outer wall of electric tar precipitator casing is fixed with the positioning sleeve pipe through the opening, the inner wall of positioning sleeve pipe is installed with temperature sensor, the top outer wall of electric tar precipitator casing is installed with steam fire control pipe through the opening, be installed with electric valve on steam fire control pipe, temperature sensor is through controller and electric valve control connection. The utility model discloses through the sealing cover plate of the spray head bottom through the torsional spring swing joint, through sealing cover plate can with the spray head spray hole of electric tar precipitator casing inside isolation, prevent the spray hole of spray head bottom expose in electric tar precipitator casing, can therefore avoid spray hole in electric tar precipitator be tar paste, avoid the spray head blockage, avoid when steam spraying, steam spraying uneven, avoid steam spraying volume deficiency thereby influence the fire extinguishing speed.

Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic precipitator equipment, specifically to an automatic fire extinguishing device for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators are key industrial devices used to purify tar-containing gases. They work by applying high-voltage direct current to the gas, causing ionization and corona discharge. This charges tar droplets, dust, and other particulate matter in the gas, which then move towards and deposit on the electrodes under the influence of the electric field. This efficient separation of the gas from tar and other impurities achieves gas purification. Electrostatic precipitators are commonly used in coking, chemical, and coal gas purification industries. During the operation of an electrostatic precipitator, in order to ensure equipment safety, it is usually equipped with an automatic fire extinguishing device. The most common method is to use high-temperature steam spraying technology to extinguish the fire inside the electrostatic precipitator. This can avoid drastic temperature differences and prevent deformation and damage to the internal equipment of the electrostatic precipitator. The steam can also be more evenly diffused inside the tank through the spraying equipment.

[0003] However, in existing automatic fire extinguishing systems using electrostatic precipitators (ESPs), the spray nozzles are directly exposed inside the ESP housing. Since ESPs produce tar during gas processing, this tar easily adheres to the exposed spray nozzles, clogging them. Once the nozzles are clogged, uneven steam spraying and insufficient spray volume occur when steam spraying is needed for fire extinguishing, affecting the speed of fire suppression. Utility Model Content

[0004] The purpose of this invention is to provide an automatic fire extinguishing device for an electrostatic precipitator to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic fire extinguishing device for an electrostatic precipitator, comprising an electrostatic precipitator housing, a positioning sleeve fixedly installed on one outer wall of the electrostatic precipitator housing through an opening, a temperature sensor installed on the inner wall of the positioning sleeve, a steam fire extinguishing pipe installed on the top outer wall of the electrostatic precipitator housing through an opening, an electric valve installed on the steam fire extinguishing pipe, the temperature sensor being controlled and connected to the electric valve via a controller, a sprinkler head installed at one bottom end of the steam fire extinguishing pipe, and a first... The four flanges are located on the top inner wall of the electrostatic precipitator housing. A sealing cover is movably connected to one side of the bottom of the spray head via a torsion spring. A second positioning plate is fixedly provided on the outer side of the sealing cover away from the torsion spring. A first positioning plate is fixedly provided on one outer wall of the spray head, and the first positioning plate is located directly above the second positioning plate. A vertically downward fusible column is fixedly provided on the bottom outer wall of the first positioning plate. A positioning hole is opened on the outer wall of the second positioning plate. A positioning plate is fixedly provided at one bottom end of the fusible column through the inner wall of the positioning hole. A compression spring is also sleeved on the outer wall of the fusible column.

[0006] Preferably, the fusible link is made of polypropylene material with a melting point of 148-176℃.

[0007] Preferably, a manhole channel is installed at the bottom of one side of the outer wall of the electrostatic precipitator housing through an opening, and a door cover is movably connected to one end of the outer wall of the manhole channel via a hinge, and a door handle is installed on the outer wall of the door cover.

[0008] Preferably, a tar outlet pipe is installed on the bottom outer wall of the electrostatic precipitator housing through an opening, and a first flange is fixedly provided on the outer wall of one end of the tar outlet pipe. An exhaust pipe is installed on the top of one side outer wall of the electrostatic precipitator housing through an opening, and a third flange is fixedly provided on the outer wall of one end of the exhaust pipe.

[0009] Preferably, a gas inlet pipe is installed at the bottom of one side of the outer wall of the electrostatic precipitator housing through an opening, and a second flange is fixedly provided on the outer wall of one end of the gas inlet pipe.

[0010] Preferably, an insulator box and a current-leading insulator box are respectively installed on the top outer wall of the electrostatic precipitator housing.

[0011] Preferably, the bottom outer wall of the electrostatic precipitator housing is fixed with vertically downward supporting legs that are evenly distributed.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: A sealing cover plate is movably connected to the bottom of the spray head via a torsion spring. The sealing cover plate can isolate the spray holes of the spray head from the inside of the electrostatic precipitator housing, preventing the spray holes at the bottom of the spray head from being exposed inside the electrostatic precipitator housing. Therefore, it can prevent the spray holes from being blocked by tar in the electrostatic precipitator, prevent the spray head from becoming clogged, prevent uneven steam spraying during steam spraying, and prevent insufficient steam spray volume from affecting the fire extinguishing speed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a three-dimensional structural diagram of an automatic fire extinguishing device for an electrostatic tar precipitator according to the present invention; Figure 2 This is a schematic diagram of the steam fire-fighting pipe structure of an automatic fire-fighting device for an electrostatic tar precipitator according to this utility model; Figure 3 This is a schematic diagram of the sprinkler head structure of an automatic fire extinguishing device for an electrostatic tar precipitator according to the present invention; Figure 4 This utility model relates to an automatic fire extinguishing device for an electrostatic precipitator. Figure 3 Enlarged structural diagram of section A in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Electrostatic precipitator housing; 2. Support legs; 3. Manhole passage; 4. Door cover; 5. Door handle; 6. Tar outlet pipe; 7. First flange; 8. Gas inlet pipe; 9. Second flange; 10. Exhaust pipe; 11. Third flange; 12. Positioning sleeve; 13. Temperature sensor; 14. Insulator box; 15. Steam fire-fighting pipe; 16. Electric valve; 17. Fourth flange; 18. Sprinkler head; 19. Sealing cover plate; 20. First positioning plate; 21. Fusible link; 22. Second positioning plate; 23. Positioning hole; 24. Positioning plate; 25. Compression spring. Detailed Implementation

[0016] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0017] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Example

[0018] Refer to the instruction manual appendix Figure 1-4 An automatic fire extinguishing device for an electrostatic precipitator includes an electrostatic precipitator housing 1. Equally spaced, vertically downward supporting legs 2 are fixedly installed on the bottom outer wall of the electrostatic precipitator housing 1. The device is placed in a designated location. A manhole 3 is installed at the bottom of one side of the outer wall of the electrostatic precipitator housing 1 through an opening. A door cover 4 is movably connected to one end of the outer wall of the manhole 3 via a hinge. A door handle 5 is installed on the outer wall of the door cover 4, facilitating personnel access to the equipment for maintenance and cleaning. Example

[0019] Based on Embodiment 1, the bottom outer wall of the electrostatic precipitator housing 1 is also equipped with a tar outlet pipe 6 through an opening. A first flange 7 is fixedly installed on the outer wall of one end of the tar outlet pipe 6 for connecting to the subsequent tar treatment pipeline. A gas inlet pipe 8 is installed at the bottom of one side outer wall of the electrostatic precipitator housing 1 through an opening. A second flange 9 is fixedly installed on the outer wall of one end of the gas inlet pipe 8 for connecting to the gas to be treated. An exhaust pipe 10 is installed at the top of one side outer wall of the electrostatic precipitator housing 1 through an opening. A third flange 11 is fixedly installed on the outer wall of one end of the exhaust pipe 10 for discharging the treated gas. Example

[0020] Based on Embodiment 1, a positioning sleeve 12 is fixedly installed on one side of the outer wall of the electrostatic precipitator housing 1 through an opening. A temperature sensor 13 is installed on the inner wall of the positioning sleeve 12 for real-time monitoring of the internal temperature of the electrostatic precipitator. An insulator box 14 and a current-leading insulator box are respectively installed on the top outer wall of the electrostatic precipitator housing 1. A steam fire-fighting pipe 15 is installed on the top outer wall of the electrostatic precipitator housing 1 through an opening. An electric valve 16 is installed on the steam fire-fighting pipe 15. The temperature sensor 13 is connected to the electric valve 16 through a controller. When the temperature sensor 13 detects an abnormal increase in temperature, the controller controls the electric valve 16 to open. Example

[0021] Based on Embodiment 1, a spray head 18 is installed at one bottom end of the steam fire-fighting pipe 15. The spray head 18 is located on the top inner wall of the electrostatic precipitator housing 1. A fourth flange 17 is fixedly installed on the outer wall of the other end of the steam fire-fighting pipe 15. The steam fire-fighting pipe 15 is connected to the steam pipeline feed of the factory steam pipeline network through the fourth flange 17. A sealing cover plate 19 is movably connected to one side of the bottom of the spray head 18 via a torsion spring. A second positioning plate 22 is fixedly installed on the outer side of the sealing cover plate 19 away from the torsion spring. A first positioning plate 20 is fixedly installed on the outer wall of one side of the spray head 18, located directly above the second positioning plate 22. A vertically downward fusible column 21 is fixedly installed on the bottom outer wall of the first positioning plate 20. The fusible column 21 is made of polypropylene material with a melting point of 148- At 176℃, the outer wall of the second positioning piece 22 has a positioning hole 23. The bottom end of the fuse column 21 passes through the inner wall of the positioning hole 23 and is fixedly installed with a positioning piece 24. The outer wall of the fuse column 21 is also fitted with a compression spring 25. When the temperature is too high and the fuse column 21 melts, the sealing cover 19 opens under the action of the compression spring 25 and the torsion spring, and steam can be sprayed out from the spray head 18 to extinguish the fire.

[0022] Working principle of this utility model: Refer to the instruction manual appendix Figure 1-4 During the operation of the electrostatic precipitator, when the electrostatic precipitator housing 1 catches fire, the internal temperature of the electrostatic precipitator housing 1 rises rapidly, exceeding the melting point of the fuse 21. At this time, the fuse 21 melts, and the sealing cover 19 opens under the combined action of the compression spring 25 and the torsion spring. Simultaneously, the temperature sensor 13 detects the abnormal rapid rise in the internal temperature of the electrostatic precipitator housing 1 and controls the electric valve 16 to open through the controller. Steam passes through 15 and is sprayed out through the spray head 18 to ignite the interior of the electrostatic precipitator housing 1.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic fire extinguishing device for an electrostatic precipitator, comprising an electrostatic precipitator housing (1), characterized in that: A positioning sleeve (12) is fixedly installed on one side of the outer wall of the electrostatic precipitator housing (1) through an opening. A temperature sensor (13) is installed on the inner wall of the positioning sleeve (12). A steam fire-fighting pipe (15) is installed on the top outer wall of the electrostatic precipitator housing (1) through an opening. An electric valve (16) is installed on the steam fire-fighting pipe (15). The temperature sensor (13) is connected to the electric valve (16) through a controller. A spray head (18) is installed at one bottom end of the steam fire-fighting pipe (15). A fourth flange (17) is fixedly installed on the outer wall of the other end of the steam fire-fighting pipe (15). The spray head (18) is located on the top inner wall of the electrostatic precipitator housing (1). A sealing cover plate (19) is movably connected to one side of the bottom of the head (18) via a torsion spring. A second positioning piece (22) is fixedly provided on the side of the sealing cover plate (19) away from the torsion spring. A first positioning piece (20) is fixedly provided on one side of the outer wall of the spray head (18). The first positioning piece (20) is located directly above the second positioning piece (22). A vertically downward fusible column (21) is fixedly provided on the bottom outer wall of the first positioning piece (20). A positioning hole (23) is opened on the outer wall of the second positioning piece (22). A positioning piece (24) is fixedly provided at one end of the bottom of the fusible column (21) through the inner wall of the positioning hole (23). A compression spring (25) is also sleeved on the outer wall of the fusible column (21).

2. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: The fusible column (21) is made of polypropylene material with a melting point of 148-176℃.

3. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: A manhole channel (3) is installed at the bottom of one side of the outer wall of the electrostatic precipitator housing (1) through an opening. A door cover (4) is movably connected to one end of the outer wall of the manhole channel (3) through a hinge. A door handle (5) is installed on the outer wall of the door cover (4).

4. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: The bottom outer wall of the electrostatic precipitator housing (1) is fitted with a tar outlet pipe (6) through an opening. A first flange (7) is fixedly provided on the outer wall of one end of the tar outlet pipe (6). An exhaust pipe (10) is fitted on the top of the outer wall of one side of the electrostatic precipitator housing (1) through an opening. A third flange (11) is fixedly provided on the outer wall of one end of the exhaust pipe (10).

5. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: A gas inlet pipe (8) is installed at the bottom of one side of the outer wall of the electrostatic precipitator housing (1) through an opening, and a second flange (9) is fixedly provided on the outer wall of one end of the gas inlet pipe (8).

6. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: The top outer wall of the electrostatic precipitator housing (1) is equipped with an insulator box (14) and an electric current insulator box.

7. The automatic fire extinguishing device for an electrostatic precipitator according to claim 1, characterized in that: The bottom outer wall of the electrostatic precipitator housing (1) is fixed with vertically downward supporting legs (2) that are evenly distributed.

Images