Fire extinguishing device in heat absorption tower

Abstract

The utility model discloses a fire extinguishing device in a heat absorption tower, which comprises a heat absorption tower main body, a pressurizing water tank is arranged at the top end of the heat absorption tower main body, a heat absorption structure is arranged at the upper part of the pressurizing water tank, an air exchange pipe is communicated with the top end of the heat absorption structure, and a water supply pipe is communicated with one side of the pressurizing water tank. A sealing cover is movably installed at the output tail end of the water supply pipe, a flow dividing disc is arranged in the sealing cover, a plurality of sets of atomizing nozzles are arranged at the bottom of the flow dividing disc, the sealing cover is movably clamped to the opening end of an air exchange pipe, and the air exchange pipe installed at the top end of the heat absorption structure guarantees normal requirements, so that the internal temperature of the heat absorption structure is kept within a normal range; after the interior of the heat absorption structure is on fire, the electric push rod works to pull the sealing cover downwards, so that the sealing cover seals the top end of the air exchange pipe, air cannot be exchanged at the opening end of the air exchange pipe, atomized water is formed through the arranged atomization nozzle and is rapidly sprayed out, combustion media are prevented from being input into the heat absorption structure, and the fire behavior is gradually weakened.

Description

Technical Field

[0001] The utility model relates to the technical field of heat absorption tower safety, in particular to a fire extinguishing device in a heat absorption tower. Background Art

[0002] The heat absorption tower is the main structure of the tower-type solar thermal power station. The heat absorption tower load is mainly concentrated on the upper part of the heat absorption tower. In order to meet the requirements of solar focusing, the structural displacement of the top of the heat absorption tower is strictly limited. Common heat absorption tower structural systems include concrete structural systems or steel structural systems, and the main structural materials are single.

[0003] According to the authorization announcement number CN 210569293 U, a heat absorption tower structure is disclosed, which includes a base, a steel frame support structure for facilitating the installation of heat absorbers, outlet containers, inlet containers, and pipeline equipment, and a conversion layer steel platform for converting and connecting the base and the steel frame support structure. Due to the adoption of the above technical scheme, the base of the concrete tower tube at the lower part of the structure of the utility model can improve the overall rigidity of the structure, improve the wind and earthquake resistance of the structure, and reduce the cost of the structure; the conversion layer steel platform can change the structural damping ratio; the sliding support releases the temperature stress caused by the temperature change of the steel frame support structure; the upper part adopts a steel frame support structure to facilitate the installation of heat absorbers, outlet containers, inlet containers, pipelines and other equipment; the steel platform is conducive to the installation of pipelines and equipment; the crane platform is conducive to the later equipment maintenance.

[0004] The above patent requires the installation of heat absorbers, outlet containers, inlet containers, pipelines and other equipment on the upper part of the heat absorption tower. Although the overall stiffness of the structure is improved and the wind and earthquake resistance of the structure is improved, there is no fire extinguishing equipment for fire fighting. In the event of an accidental fire, the fire source cannot be extinguished in time to reduce the risk. Therefore, there is a need for a fire extinguishing device in the heat absorption tower. Utility Model Content

[0005] The purpose of the utility model is to provide a fire-fighting extinguishing device in a heat absorption tower, which blocks the opening of the air exchange duct by a movable cover to reduce the transportation of the combustion medium, and increases the internal humidity of the heat absorption structure by spraying atomized water to improve the fire extinguishing efficiency, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting extinguishing device in a heat absorption tower, comprising a heat absorption tower body, a pressurized water tank is installed on the top of the heat absorption tower body, a heat absorption structure is arranged on the upper part of the pressurized water tank, an air exchange duct is installed on the top of the heat absorption structure, a water supply pipe is installed on one side of the pressurized water tank, a sealing cover is movably installed on the output end of the water supply pipe, a diverter disk is arranged inside the sealing cover, and a plurality of groups of atomizing nozzles are opened at the bottom of the diverter disk, and the sealing cover is movably connected to the open end of the air exchange duct.

[0007] Preferably, a water injection pipe is installed through one side of the pressurized water tank, a mounting groove is opened in the middle of the top of the pressurized water tank, a mounting seat is bolted and installed inside the mounting groove, and the heat absorption structure is installed on the top of the mounting seat.

[0008] Preferably, a bellows is provided at the output end of the water supply pipe, a sealing socket is installed through the middle of the cover, a connecting plug is installed at the top of the diversion plate, the connecting plug extends from the inside of the sealing socket, and the connecting plug is sealingly plugged into the inside of the bellows.

[0009] Preferably, a sealing insert is fixedly mounted on the lower surface of the cover corresponding to the inner wall of the air exchange duct, and an insert plate is fixedly mounted on the lower surface of the cover outside the sealing insert.

[0010] Preferably, two groups of electric push rods are symmetrically installed on the upper surface of the heat absorption structure outside the air exchange duct, and a group of connecting plates are fixedly installed on the telescopic top of each group of electric push rods, and the two groups of connecting plates are bolted and installed respectively against the cover surface.

[0011] Preferably, a slot is provided on the upper end surface of the air exchange duct, and when the cover is attached to the air exchange duct for insertion, the plug-in plate is movably inserted into the inner wall of the slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The air exchange duct installed at the top of the heat absorption structure ensures normal demand and keeps the internal temperature of the heat absorption structure within the normal range. After a fire occurs inside the heat absorption structure, the electric push rod will pull the cover downward to seal the top of the air exchange duct, making it impossible for air to circulate at the open end of the air exchange duct, thereby preventing the input of combustion media into the heat absorption structure and gradually weakening the fire.

[0014] 2. After the cover moves down, the pressurized water tank injects water into the diverter plate through the water supply pipe, and the atomized water is quickly sprayed out through the atomizing nozzle, so that the humidity inside the heat absorption structure is quickly increased. At the same time, since the atomized water droplets are different from the water column, the top impact on the heat absorption structure is reduced, and the heat absorption structure is better protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the heat absorption structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the split installation structure of the utility model;

[0018] Figure 4This is a schematic diagram of the bottom structure of the diverter plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the installation structure of the electric push rod of the utility model.

[0020] In the figure: 1. Heat absorption tower body; 2. Pressurized water tank; 3. Water injection pipe; 4. Mounting groove; 5. Water supply pipe; 6. Bellows; 7. Cover; 8. Sealed socket; 9. Plug plate; 10. Sealed plug; 11. Diverter plate; 12. Atomizing nozzle; 13. Connecting plug; 14. Mounting seat; 15. Heat absorption structure; 16. Air exchange duct; 17. Slot; 18. Electric push rod; 19. Connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides: a fire extinguishing device in a heat absorption tower, such as Figure 1-Figure 5 As shown, it includes a heat absorption tower body 1, a pressurized water tank 2 is installed on the top of the heat absorption tower body 1, a heat absorption structure 15 is arranged on the upper part of the pressurized water tank 2, an air exchange pipe 16 is installed on the top of the heat absorption structure 15, a water supply pipe 5 is installed on one side of the pressurized water tank 2, a cover 7 is movably installed on the output end of the water supply pipe 5, a diverter plate 11 is arranged inside the cover 7, and a plurality of groups of atomizing nozzles 12 are provided at the bottom of the diverter plate 11, and the cover 7 is movably connected to the open end of the air exchange pipe 16.

[0023] Preferably, a water injection pipe 3 is installed through one side of the pressurized water tank 2, a mounting groove 4 is opened in the middle of the top of the pressurized water tank 2, a mounting seat 14 is bolted inside the mounting groove 4, and the heat absorption structure 15 is installed on the top of the mounting seat 14. The water injection pipe 3 installed on one side of the pressurized water tank 2 can ensure that the water inside the pressurized water tank 2 can be continuously replenished to meet the fire extinguishing requirements when a fire occurs inside the heat absorption structure 15. The mounting groove 4 opened on the upper surface of the pressurized water tank 2 limits the mounting seat 14, so that the heat absorption structure 15 can be stably installed and used.

[0024] Furthermore, a bellows 6 is provided at the output end of the water supply pipe 5, a sealing socket 8 is installed through the middle of the cover 7, a connecting pipe 13 is installed at the top of the diverter plate 11, the connecting pipe 13 extends from the inside of the sealing socket 8, and the connecting pipe 13 is sealed and plugged into the inside of the bellows 6. The water supply pipe 5 installed on the rear side of the pressurized water tank 2 stably outputs water to the inside of the diverter plate 11, so that the water can be atomized and sprayed through the atomizing nozzle 12 opened at the bottom of the diverter plate 11, so that the humidity inside the heat absorption structure 15 can be quickly increased through the atomized water after the fire occurs, and the fire can be quickly extinguished. At the same time, the installed bellows 6 can ensure the stable connection between the diverter plate 11 and the water supply pipe 5 during the lifting and lowering process of the cover 7, and the sealing socket 8 installed in the center of the cover 7 can further improve the connectivity between the bellows 6 and the diverter plate 11.

[0025] Furthermore, a sealing insert 10 is fixedly installed on the lower surface of the cover 7 corresponding to the inner wall of the air exchange duct 16, and a plug plate 9 is fixedly installed on the lower surface of the cover 7 outside the sealing insert 10. The sealing insert 10 and the plug plate 9 installed at the bottom of the cover 7 are both connected to the air exchange duct 16, so that the cover 7 can better seal the top opening position of the air exchange duct 16 during the descending process, quickly reduce the air inside the heat absorption structure 15, make the combustion without a medium, thereby weakening the fire.

[0026] It is worth mentioning that two groups of electric push rods 18 are symmetrically installed on the upper surface of the heat absorption structure 15 outside the air exchange duct 16, and a group of connecting plates 19 are fixedly installed on the telescopic top of each group of electric push rods 18, and the two groups of connecting plates 19 are bolted and installed on the surface of the cover 7 respectively. The installed electric push rods 18 can control the lifting and lowering of the cover 7, and the installed connecting plates 19 are used to connect with the cover 7 to improve the sealing of the cover 7 to the air exchange duct 16 in advance.

[0027] Specifically, a slot 17 is provided on the upper end surface of the air exchange duct 16. When the cover 7 is attached to the air exchange duct 16 and plugged in, the plug plate 9 is attached to the inner wall of the slot 17 and movably inserted. When the cover 7 is lowered, the sealing plug 10 is inserted into the inner wall of the air exchange duct 16, so that the water sprayed by the atomizing nozzle 12 can directly enter the heat absorption structure 15. The plug plate 9 is inserted into the slot 17, which can further improve the sealing of the air exchange duct 16, so that the device can complete the fire extinguishing work at the fastest speed.

[0028] 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 fire extinguishing device in a heat absorption tower, characterized in that: The invention comprises a heat absorption tower body (1), wherein a pressurized water tank (2) is installed at the top of the heat absorption tower body (1), a heat absorption structure (15) is arranged on the upper part of the pressurized water tank (2), a ventilation pipe (16) is installed at the top of the heat absorption structure (15), a water supply pipe (5) is installed at one side of the pressurized water tank (2), a sealing cover (7) is movably installed at the output end of the water supply pipe (5), a diverter disk (11) is arranged inside the sealing cover (7), and a plurality of groups of atomizing nozzles (12) are arranged at the bottom of the diverter disk (11), and the sealing cover (7) is movably connected to the open end of the ventilation pipe (16).

2. A fire extinguishing device in a heat absorption tower according to claim 1, characterized in that: A water injection pipe (3) is installed through one side of the pressurized water tank (2), a mounting groove (4) is provided in the middle of the top end of the pressurized water tank (2), a mounting seat (14) is bolted inside the mounting groove (4), and the heat absorption structure (15) is installed on the top end of the mounting seat (14).

3. A fire extinguishing device in a heat absorption tower according to claim 2, characterized in that: The output end of the water supply pipe (5) is provided with a bellows (6), a sealing socket (8) is installed through the middle of the sealing cover (7), and a connecting plug (13) is installed at the top of the diverter plate (11), the connecting plug (13) extends from the inside of the sealing socket (8), and the connecting plug (13) is sealed and plugged into the inside of the bellows (6).

4. A fire extinguishing device in a heat absorption tower according to claim 3, characterized in that: A sealing insert (10) is fixedly mounted on the lower surface of the sealing cover (7) corresponding to the inner wall of the air exchange duct (16), and an insert plate (9) is fixedly mounted on the lower surface of the sealing cover (7) outside the sealing insert (10).

5. A fire extinguishing device in a heat absorption tower according to claim 4, characterized in that: Two groups of electric push rods (18) are symmetrically installed on the upper surface of the heat absorption structure (15) and located outside the air exchange duct (16). A group of connecting plates (19) are fixedly installed at the telescopic top end of each group of electric push rods (18), and the two groups of connecting plates (19) are respectively bolted and installed in contact with the surface of the cover (7).

6. A fire extinguishing device in a heat absorption tower according to claim 5, characterized in that: The upper end surface of the air exchange pipe (16) is provided with a slot (17), and when the cover (7) is attached to the air exchange pipe (16) for insertion, the plug plate (9) is attached to the inner wall of the slot (17) and movably inserted.

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